DESC:FIELD OF THE INVENTION
The present subject matter relates, in general, to the field of system for manufacturing of a rotor blade, and more particularly to system for the lifting and clamping of the mould for the manufacturing of a root joint of a wind turbine blade.

BACKGROUND OF THE INVENTION
Most wind turbines have three blades which are made mostly of fiberglass. Turbine blades vary in size, but a typical modern land-based wind turbine has blades of over 170 feet (52 meters). The largest turbine is GE's Haliade-X offshore wind turbine, with blades 351 feet long (107 meters) – about the same length as a football field. When wind flows across the blade, the air pressure on one side of the blade decreases. The difference in air pressure across the two sides of the blade creates both lift and drag. The force of the lift is stronger than the drag and this causes the rotor to spin.

Wind turbine rotor blades are the most highly stressed and vital component of any wind turbine. They are designed to absorb the kinetic power of the wind and convert the said energy into a rotary motion around a central hub. While the central hub of the blades may be rotating at a gently speed relative to the wind, the tips of the blades are rotating at a much higher velocity and the longer the blade is, the faster the tip rotates especially for propeller type blade designs.

Conventionally wind turbine blades are attached to a steel hub using a detachable mechanical joint. These root joints are highly loaded and experience a very high number of load cycles. Because of the existing experience in this ?eld and the similarities with the joints for segmented blades these joint types are candidates for blade segmentation.

Blades with a ?ange type root have a ?ange formed by moulding the material outwards. This ?ange is then bolted to the hub. Bundles of ?bers can be looped around bushings with the ?ange to capture them mechanically. This type of root is known as the Hütter root connection.

Moulding is the process of manufacturing by shaping liquid or pliable raw material using a rigid frame called a mould or matrix. The said mould itself may have been made using a pattern or model of the final object. A mould is a hollowed-out block that is filled with a liquid or pliable material such as plastic, glass, metal, or ceramic raw material. The liquid hardens or sets inside the mould, adopting its shape. A mould is a counterpart to a cast. The very common bi-valve moulding process uses two moulds, one for each half of the object.

Traditionally, the root of a single rotor blade consists of two halves, which are first made individually in the mould parts and then moved in the mould parts by means of the mouldings, moved toward each other in a joining direction perpendicular to the longitudinal direction of the mouldings and thereby finally brought into a joining position and in the joining position be joined together.

Typically, in the industry, root joints of wind turbine blades are manufactured by the bi-valve moulding process. In the said process, the root joint is manufactured two parts, i.e., the two halves, and then the said halves of the root joint mould are joined at their complementary edges to form the entire root joint mould.

Each of the two halves of the root joint are formed using a mould or matrix having the shape and structure of one half of the root joint. The mould or matrix for manufacturing one half of the root mould primarily comprises of a positive mould and a negative mould. The shape of a root joint is roughly cylindrical; therefore, one half of the said root joint is semi-cylindrical. The curvature of the outer or convex surface of the positive mould is such that it is congruent to the curvature of the inner concave surface of one half of the root joint. Similarly, the negative mould is also a curved concave surface wherein the inner or the concave surface of the negative mould is congruent to the outer convex surface of the said half of the root joint.

To form one half the root joint, a plurality of sheets of glass fibre are placed on top of the convex surface of the positive mould. Further, the said plurality of sheets of glass fibre are compressed over the positive mould by placing and pressing the negative mould over the sheets of glass fibre placed over the positive mould. The compressive force produced between the convex surface of the positive mould and the concave surface of the negative mould press the various layers of the glass fibre together and due to the malleable structure of the glass fibre, the said sheets of glass fibre get bonded to each other.

Typically, at one instance a specific number of fibre glass sheets are compressed between the positive mould and the negative mould. Once the said numbers of the glass fibre sheets are compressed between the positive mould and the negative mould, the negative mould is lifted and another set of the specific number of glass fibre sheets is placed on top of the previously compressed glass fibre sheets and the compressing process is repeated. The said process is repeated until the desired number of glass fibre sheets is reached.

However, there are many limitations associated with the traditional method of moulding. There is a need for improved and effective mechanisms for resting, lowering and lifting of negative mould, for relative movement lock between both the positive and the negative mould, for supporting the weight of the negative mould over the positive mould.

Thus, there has always been a need for a system for the lifting and clamping of the mould for the manufacturing of a root joint of a wind turbine blade.
SUMMARY OF THE INVENTION
The following is a summary description of illustrative embodiments of the invention. It is provided as a preface to assist those skilled in the art to more rapidly assimilate the detailed design discussion which ensues and is not intended in any way to limit the scope of the claims which are appended hereto in order to particularly point out the invention.

According to illustrative embodiments, the present invention focuses a system for the lifting and clamping of the mould for the manufacturing of a root joint of a wind turbine blade, which overcomes the above-mentioned disadvantages or provide the users with a useful or commercial choice.

An objective of the present invention is to provide a lowering and clamping equipment for a root insert lay-up steel mould where the lowering and the clamping of the root insert lay-up steel mould is affected by a single method of actuation.

Another objective of the present invention is to provide a resting surface to receive a complementary surface of a root insert lay-up steel mould in order to bear the weight of the root insert lay-up steel mould.

Another objective of the present invention is to provide a hook to clamp down a root insert lay-up steel mould in order to prevent its movement relative to another root insert lay-up steel mould.

Another objective of the present invention is to provide a guide plate with slots for guiding the movement of the resting surface and the hook.

Another primary object of the present invention is to provide actuation to the resting surface and the hook with a singular method of actuation.

Yet objective of the present invention is to revamp the process of lowering or lifting of the negative mould over the positive mould during the manufacturing of the root joint of a wind turbine blade.

Yet another objective of the present invention is to provide a means for locking the relative movement of the negative mould over the positive when a compressive force is being applied over the glass fibre sheets sandwiched between the positive mould and the negative mould during the manufacturing of the root joint of a wind turbine blade.
Yet another objective of the present invention is to provide actuation for the lower and lifting function and the locking function with a single actuating cylinder during the manufacturing of the root joint of a wind turbine blade.
In the light of the above, in an aspect of the present invention a system for the lifting and clamping of the mould for the manufacturing of a root joint for a wind turbine blade. The system comprising a moulding assembly having a positive mould. The moulding assembly also having at least two negative moulds flanked on the sides of the positive mould and the negative mould configured for the moulding of the root joint of a wind turbine blade. The moulding assembly also having rotatory mechanism between the positive mould and the negative mould and the rotatory mechanism configured to rotate along an axis between the negative mould and the positive mould and be placed on top of the positive mould. The moulding assembly also having at least four mounting cups attached to the four corners of the negative mould and the mounting cups configured as cup-like concave surfaces. The moulding assembly also having at least two knobs projecting out from either side of the each of the mounting cup and the knobs and configured to prevent relative movement of the negative mould and the positive mould.
The system also comprising at least four equipment for lifting and clamping attached to the four corners of the positive mould and the equipment for lifting and clamping configured to keep the root insert lay-up steel mould rigidly fixed to the ground and the equipment for lifting and clamping further comprises a guider plate assembly. The equipment for lifting and clamping further comprises a top plate placed on the top of the guider plate assembly and the top plate having an opening with a convex profile curvature. The equipment for lifting and clamping further comprises a mounting surface projecting out of the top plate and the mounting surface configured to receive the complementary surface of the negative mould and assisting the mounting cup of the negative mould to bear the weight of the positive mould. The equipment for lifting and clamping further comprises an actuating cylinder connected to the mounting surface and the actuating cylinder configured to impart force in both upward and downward direction.
The equipment for lifting and clamping further comprises a connecting rod connecting the mounting surface to the actuating cylinder and the connecting rod configured to transfer the actuating force received from the actuating cylinder to the mounting surface in order to impart movement to the said mounting surface. The equipment for lifting and clamping further comprises a locking hook assembly connected to the connecting rod and enclosed within the guider plate assembly and the locking hook assembly configured to facilitate locking of the negative mould over the positive mould.
In one embodiment, the guider plate assembly further comprises at least two guider plates arranged parallel to each other.

In one embodiment, the guider plate assembly further comprises a linear vertical guide slot on each guide plate.
In one embodiment, the guider plate assembly further comprises a non-linear locking guide slot below the linear vertical guide slot on each guide plate.

In one embodiment, the locking hook assembly further comprises at least two locking/clamping hooks.

In one embodiment, the locking hook assembly further comprises a joining bar connecting the two locking/clamping hooks.

In one embodiment, the locking hook assembly further comprises a proximally located holes on each of the locking hook.

In one embodiment, the locking hook assembly further comprises a distally located holes on each of the locking hook.

In one embodiment, the convex profile curvature opening of the top plate is designed to match and accommodate therewithin the concave curvature of the mounting cups of the negative mould.

In one embodiment, the knobs engage with the locking hook assembly to prevent relative movement of the negative mould and the positive mould.

In one embodiment, the locking hook has a follower mechanism to limit the movement of the locking hook by coupling the guider plate assembly and the locking hook assembly.

In one embodiment, the proximally located holes and the distally located holes therewithin receive two follower shafts including a first follower shaft and a second follower shaft for coupling with the linear vertical guide slot and the non-linear locking guide slot.

In one embodiment, the first follower shaft passes through the linear vertical guide slot and the proximally located holes and the second follower shaft passes through the non-linear locking guide slot and distally located holes.

In one embodiment, the follower mechanism translates the linear motion provided by the actuating cylinder into a two-part motion of the locking hook, including the first follower shaft receiving actuation from the actuating cylinder and moving along the linear vertical guide slot by lifting the locking hook linearly, followed by the second follower shaft changing direction about the vertex of the angle of the non-linear locking guide slot and moving the locking hook away from the central axis of the linear vertical guide slot.

In one embodiment, the follower mechanism enables the upward and outward movement of the locking hook that prevents fouling of the knobs with the locking hook when the negative mould is being lowered onto the positive mould.

These and other advantages will be apparent from the present application of the embodiments described herein.

The preceding is a simplified summary to provide an understanding of some embodiments of the present invention. This summary is neither an extensive nor exhaustive overview of the present invention and its various embodiments. The summary presents selected concepts of the embodiments of the present invention in a simplified form as an introduction to the more detailed description presented below. As will be appreciated, other embodiments of the present invention are possible utilizing, alone or in combination, one or more of the features set forth above or described in detail below.

These elements, together with the other aspects of the present invention and various features are pointed out with particularity in the claims annexed hereto and form a part of the present invention. For a better understanding of the present invention, its operating advantages, and the specified object attained by its uses, reference should be made to the accompanying drawings and descriptive matter in which there are illustrated exemplary embodiments of the present invention.

BRIEF DESCRIPTION OF DRAWINGS

The drawings constitute a part of this invention and include exemplary embodiments of the present invention illustrating various objects and features thereof.

FIG. 1A illustrates a block diagram for a system 100 for the lifting and clamping of the mould for the manufacturing of a root joint for a wind turbine blade, in accordance with an exemplary embodiment of the present invention;

FIG. 1B illustrates a perspective view of a system for the lifting and clamping of the mould for the manufacturing of a root joint for a wind turbine blade, in accordance with an exemplary embodiment of the present invention;

FIG. 2 illustrates a detailed view of a moulding assembly, in accordance with an exemplary embodiment of the present invention;

FIG. 3A illustrates a cross-sectional view of an equipment for lifting and clamping, in accordance with an exemplary embodiment of the present invention;
FIG. 3B illustrates a perspective view of an equipment for lifting and clamping, in accordance with an exemplary embodiment of the present invention;
FIG. 4 illustrates a detailed view of a guider plate assembly, in accordance with an exemplary embodiment of the present invention; and
FIG. 5 illustrates a side view of a locking hook assembly, in accordance with an exemplary embodiment of the present invention.

DETAILED DESCRIPTION OF THE INVENTION
The present invention relates to aspects, relating to a system of mould lifting and clamping to manufacture a root-joint for a wind-turbine blade.

FIG. 1A illustrates a block diagram for a system 100 for the lifting and clamping of the mould for the manufacturing of a root joint for a wind turbine blade, in accordance with an exemplary embodiment of the present invention.

FIG. 1B illustrates a perspective view of the system 100 for the lifting and clamping of the mould for the manufacturing of a root joint for a wind turbine blade, in accordance with an exemplary embodiment of the present invention.

The system 100 may be comprising a moulding assembly 102, a positive mould 104, at least two negative mould 106, a rotatory mechanism 108, at least four mounting cups 110, at least two knobs 112, at least four equipment for lifting and clamping 114, a guider plate assembly 116, a top plate 118, a mounting surface 120, an actuating cylinder 122, a connecting rod 124, and a locking hook assembly 126.

In an embodiment of the present invention, the first function of the system 100 is to ensure that the positive mould 104 may receive the weight of the negative mould 106 and adjust the height. The second function is to lock the negative mould 106 on top of the positive mould 104 and prevent relative movement and to provide force for the compressive of the fibre sheets or glass fibre sheets held between the positive mould 104 and the negative mould 106.
FIG. 2 illustrates a detailed view of a moulding assembly 102, in accordance with an exemplary embodiment of the present invention.

The moulding assembly 102 may include the positive mould 104, the two negative mould 106, the rotatory mechanism 108, the four mounting cups 110, and the two knobs 112.The positive mould 104 may be capable of bearing the weight of the negative mould 106.

The two negative mould 106 may be flanked on the sides of the positive mould 104 and the negative mould 106 configured for the moulding of the root joint of a wind turbine blade

The rotatory mechanism 108 may be between the positive mould 104 and the negative mould 106 and the rotatory mechanism 108 configured to rotate along an axis between the negative mould 106 and the positive mould 104 and be placed on top of the positive mould 104.

The four mounting cups 110 may be attached to the four corners of the negative mould 106 and the mounting cups 110 configured as cup-like concave surfaces.

The two knobs 112 may be projecting out from either side of the each of the mounting cup 110 and the knobs 112 and configured to prevent relative movement of the negative mould 106 and the positive mould 104.

In a preferred embodiment, for the moulding of the fibre sheets between the positive mould 104 and the negative mould 106, the negative mould 106 may be rotated along an axis between the negative mould 106 and the positive mould 104 using the rotatory mechanism and placed on top of the positive mould 104. In a preferred embodiment, the four corners of the negative mould 106 may be equipped with the four mounting cups 110. The mounting cups 100 may be cup-like concave surfaces rigidly attached to the four corners of the negative mould 106.

FIG. 3A illustrates a cross-sectional view of an equipment for lifting and clamping 114, in accordance with an exemplary embodiment of the present invention.

FIG. 3B illustrates a perspective view of an equipment for lifting and clamping 114, in accordance with an exemplary embodiment of the present invention.

The four equipment for lifting and clamping 114 may be attached to the four corners of the positive mould 104 and the equipment for lifting and clamping 114 configured to keep the root insert lay-up steel mould rigidly fixed to the ground and the equipment for lifting and clamping 114 may further comprise the guider plate assembly 116, the top plate 118, the mounting surface 120, the actuating cylinder 122, the connecting rod 124, and the locking hook assembly 126.

The guider plate assembly 116 may act as a supporting structure.

The top plate 118 may be placed on the top of the guider plate assembly 116 and the top plate 118 having an opening with a convex profile curvature.

The mounting surface 120 may be projecting out of the top plate 118 and the mounting surface 120 configured to receive the complementary surface of the negative mould 106 and assisting the mounting cup 110 of the negative mould 106 to bear the weight of the positive mould 104.

The actuating cylinder 122 may be connected to the mounting surface 120 and the actuating cylinder 122 configured to impart force in both upward and downward direction.

The connecting rod 124 may be connecting the mounting surface 120 to the actuating cylinder 122 and the connecting rod 124 configured to transfer the actuating force received from the actuating cylinder 122 to the mounting surface 120 in order to impart movement to the mounting surface 120.
The locking hook assembly 126 may be connected to the connecting rod 124 and enclosed within the guider plate assembly 116 and the locking hook assembly 126 configured to facilitate locking of the negative mould 106 over the positive mould 104.

In a preferred embodiment, on the four corners of the positive mould 104, the four equipment for lifting and clamping 114 of root insert lay-up steel mould may be positioned. The four equipment for lifting and clamping 114 may be rigidly fixed to the ground. The four equipment for lifting and clamping 114 is for the lifting and clamping of root insert lay-up steel mould.

In a preferred embodiment, the mounting surface 120 is a spherical body projecting out of the top plate 118. When the negative mould 106 may be rotated and placed over the positive mould 104, the four mounting cups 110 of the negative mould 106 may placed over the four mounting surface 120 attached to the positive mould 104. When the negative mould 106 may be rotated completely and all the four mounting cups 110 of the negative mould 106 may rest on top of the mounting surface 120 of the four equipment for lifting and clamping 114 located at the four corners of the positive mould 104, the entire weight of the negative mould 106 is borne by the four equipment 114. In an embodiment of the present invention, the knobs 112 may be designed in a manner to engage with the locking hook assembly 126 of the equipment for lifting and clamping 114 to enable locking of the negative mould 106 over the positive mould 104 to prevent relative movement of the moulds.

FIG. 4 illustrates a detailed view of a guider plate assembly 116, in accordance with an exemplary embodiment of the present invention.

The guider plate assembly 116 may further comprises at least two guider plates 128 arranged parallel to each other. The guider plate assembly 116 may further comprises a linear vertical guide slot 130 on each of the guide plate 128. The guider plate assembly 116 may further comprises a non-linear locking guide slot 132 below the linear vertical guide slot 130 on each of the guide plate 128.
In a preferred embodiment, the two parallel guider plates 128 each have the linear vertical guide slot 130 and the non-linear locking guide slot 132 cut into the bodies of the plates. In an embodiment of the present invention, the top plate 118 may be on the top of the two parallel guider plates 128.

FIG. 5 illustrates a side view of a locking hook assembly 126, in accordance with an exemplary embodiment of the present invention.

The locking hook assembly 126 may further comprises at least two locking/clamping hooks 134. The locking hook assembly 126 may further comprises a joining bar 136 connecting the two locking/clamping hooks 134. The locking hook assembly 126 may further comprises a proximally located holes 138 on each of the locking hook 134. The locking hook assembly 126 may further comprises a distally located holes 140 on each of the locking hook 134.

The convex profile curvature opening of the top plate 118 may be designed to match and accommodate therewithin the concave curvature of the mounting cups 110 of the negative mould 106.

The knobs 112 may engage with the locking hook assembly 126 to prevent relative movement of the negative mould 106 and the positive mould 104.

The locking hook 134 may have a follower mechanism to limit the movement of the locking hook 134 by coupling the guider plate assembly 116 and the locking hook assembly 126.

The proximally located holes 138 and the distally located holes 140 may therewithin receive two follower shafts including a first follower shaft 142 and a second follower shaft 144 for coupling with the linear vertical guide slot 130 and the non-linear locking guide slot 132.

The first follower shaft 142 may pass through the linear vertical guide slot 130 and the proximally located holes 138 and the second follower shaft 144 may pass through the non-linear locking guide slot 132 and the distally located holes 140.

The follower mechanism may translate the linear motion provided by the actuating cylinder 122 into a two-part motion of the locking hook 134, including the first follower shaft 142 receiving actuation from the actuating cylinder 122 and moving along the linear vertical guide slot 130 by lifting the locking hook 134 linearly, followed by the second follower shaft 144 changing direction about the vertex of the angle of the non-linear locking guide slot 132 and moving the locking hook 134 away from the central axis of the linear vertical guide slot 130.

The follower mechanism may enable the upward and outward movement of the locking hook 134 that prevents fouling of the knobs 112 with the locking hook 135 when the negative mould 106 is being lowered onto the positive mould 104.

In a preferred embodiment, the locking hook assembly 126 also imparts compressive force between the positive mould 104 and the negative mould 106, in addition to the force imparted by the weight of the negative mould 106 over the positive mould 104.

In an embodiment of the present invention, the top plate 118 may have two rectangular slots having the top portion of the locking hook 134 projecting out of the rectangular slots.

In an embodiment of the present invention, the actuating cylinder 124 may impart force in both upward and downward direction to enable the movement in the both upward and downward direction. The upward movement of the mounting surface 120 may lift the negative mould 106 with respect to the positive mould 104 and the downward movement of the mounting surface 120 to lowers the negative mould 106 on to the positive mould 104.
In an embodiment of the present invention, the clamping function of the equipment for lifting and clamping 114, at least one locking hook 134 may be attached. The locking hook 134 may be coupled operatively to the linear vertical guide slot 130 and the non-linear locking guide slot 132.

In the preferred embodiment of the present invention, the two follower shafts may pass through the bodies of the guide plate 116 and the locking hook 134 for limiting the movement of the locking hook 134. The locking hook 134 receives actuation from the actuating cylinder. The coupling of the locking hook 134 with the linear vertical guide slot 130 may limit the movement of the locking hook 134, as received from the actuating cylinder 124, within the shape of the linear vertical guide slot 130.

In the preferred embodiment of the present invention, the two locking hook 134 may be rigidly attached to each other by a joining bar 136. The locking hook 134 may receive their motion from the actuating cylinder 124 at the proximally located hole 138 on the locking hook 134. The connecting rod 122 may connect projections of the first follower shaft 142 protruding outwards to pass through the hole proximally located hole 138 which transfer the actuating force from the actuating cylinder 124 to the locking hook 134.

In an embodiment of the present invention, the linear vertical shaped guide slot 130 and the non-linear locking slot 132 may be partly collinear with respect to the first linear guide slot and partly at an angle with respect to the linear vertical shaped guide slot 130. In a preferred embodiment, the locking mechanism translates the linear motion may be provided by the actuating cylinder 124 into a two-part motion of the locking hook 134. When actuation may be received from the actuating cylinder 134, the first follower shaft 142 may move along the collinear parts of the linear vertical guide slot 130 and thus may lift the locking hook 134 linearly. As the motion continues, the second follower shaft 144 may changes it direction about the vertex of the angle of the non-linear locking guide slot 132 and thus may move the locking hook 124 away from the central axis of the linear vertical guide slot 130 and also in an upward direction.
In an embodiment of the present invention, when the negative mould 106 has been lowered, the actuating cylinder 124 may provide actuation reverse direction, which, along with lowering the negative mould 106 on top of the positive mould 104, also moves the locking hook 134 both downwards and inwards so that the locking hook 134 may clamp on the knob 112, preventing the relative motion of the negative mould 106 and also providing the compressive force between the negative mould 106 and the positive mould 104. In a preferred embodiment, the locking hook 134 may clamp onto the negative mould 106 in order to impart a compressive force.

In an embodiment of the present invention, the locking hook assembly 126 may receive actuation from an actuating cylinder 124 with the locking hook assembly 126 coupled with linear vertical guide slot 130 and the non-linear lock slot 132 on the body of the guide plates 116 by the two follower shafts. The mounting surface 120 may connect the actuating cylinder 124 with the connecting rod 122 and may be entirely enclosed on the vertical sides by rectangular cover plates. The rectangular cover plates may be rigidly placed on a baseplate. The baseplate may have a means for fastening with the ground.

Although the subject matter has been described in considerable detail with reference to certain examples and implementations thereof, other implementations are also possible. As such, the present invention should not be limited to the description of the preferred examples and implementations contained therein.

,CLAIMS:I/We claim:

1. A system (100) for lifting and clamping a mould for the manufacturing of a root joint for a wind turbine blade, the system (100) comprising:
a moulding assembly (102) having:
a) a positive mould (104);
b) at least two negative mould (106) flanked on the sides of the positive mould (104), the negative mould (106) configured for the moulding of the root joint of the wind turbine blade;
c) a rotatory mechanism (108) between the positive mould (104) and the negative mould (106), the rotatory mechanism (108) configured to rotate along an axis between the negative mould (106) and the positive mould (104) and be placed on top of the positive mould (104);
d) at least four mounting cups (110) attached to four corners of the negative mould (106), the mounting cups (110) configured as cup-like concave surfaces;
e) at least two knobs (112) projecting out from either side of the each of the mounting cup (110);
f) at least four equipment for lifting and clamping (114) attached to the four corners of the positive mould (104), the equipment for lifting and clamping (114) configured to keep the root insert lay-up steel mould rigidly fixed to the ground and the equipment for lifting and clamping (114) further comprises:
g) a guider plate assembly (116);
h) a top plate (118) placed on the top of the guider plate assembly (116), the top plate (118) having an opening with a convex profile curvature;
i) a mounting surface (120) projecting out of the top plate (118), the mounting surface (120) configured to receive the complementary surface of the negative mould (106) and assisting the at least four mounting cup (110) of the negative mould (106) to bear the weight of the positive mould (104);
j) an actuating cylinder (122) connected to the mounting surface (120), the actuating cylinder (122) configured to impart force in both upward and downward direction;
k) a connecting rod (124) connecting the mounting surface (120) to the actuating cylinder (122), the connecting rod (124) configured to transfer the actuating force received from the actuating cylinder (122) to the mounting surface (120) in order to impart movement to the mounting surface (120); and
l) a locking hook assembly (126) connected to the connecting rod (124) and partially enclosed within the guider plate assembly (116), the locking hook assembly (126) configured to facilitate locking of the negative mould (106) over the positive mould (104).

2. The system (100) as claimed in claim 1, wherein the guider plate assembly (116) further comprises:
a) at least two guider plates (128) arranged parallel to each other;
b) a linear vertical guide slot (130) on each of the guide plate (128);
c) a non-linear locking guide slot (132) below the linear vertical guide slot (130) on each of the guide plate (128).

3. The system (100) as claimed in claim 1, wherein the locking hook assembly (126) further comprises:
a) at least two locking/clamping hooks (134);
b) a joining bar (136) connecting the two locking/clamping hooks (134);
c) a proximally located holes (138) on each of the locking hook (134); and
d) a distally located holes (140) on each of the locking hook (134).

4. The system (100) as claimed in claim 1, wherein the convex profile curvature opening of the top plate (118) is configured to match and accommodate therewithin the concave curvature of the mounting cups (110) of the negative mould (106).

5. The system (100) as claimed in claim 1, wherein the knobs (112) engage with the locking hook assembly (126) to prevent relative movement of the negative mould (106) and the positive mould (104).

6. The system (100) as claimed in claim 3, wherein the locking hook (134) has a follower mechanism to limit the movement of the locking hook (134) by coupling the guider plate assembly (116) and the locking hook assembly (126).

7. The system (100) as claimed in claim 3, wherein the proximally located holes (138) and the distally located holes (140) therewithin receive two follower shafts including a first follower shaft (142) and a second follower shaft (144) for coupling with the linear vertical guide slot (130) and the non-linear locking guide slot (132).

8. The system (100) as claimed in claim 7, wherein the first follower shaft (142) passes through the linear vertical guide slot (130) and the proximally located holes (138) and the second follower shaft (144) passes through the non-linear locking guide slot (132) and the distally located holes (140).

9. The system (100) as claimed in claim 6, wherein the follower mechanism translates the linear motion provided by the actuating cylinder (122) into a two-part motion of the locking hook (134), including the first follower shaft (142) receiving actuation from the actuating cylinder (122) and, move along the linear vertical guide slot (130) by lifting the locking hook (134) linearly, followed by the second follower shaft (144) changing direction about the vertex of the angle of the non-linear locking guide slot (132) and moving the locking hook (134) away from the central axis of the linear vertical guide slot (130).

10. The system (100) as claimed in claim 9, wherein the follower mechanism enables the upward and outward movement of the locking hook (134) that prevents fouling of the knobs (112) with the locking hook (135) when the negative mould (106) is being lowered onto the positive mould (104)
Dated this 05th Day of June 2024
Signature:
Name: Bhavik Patel
Applicant’s Agent: IN/PA-1379