DESC:BACKGROUND
Technical Field
[0001] Embodiments herein generally relate to material handling systems, more particularly to a mechanical device for handling and sorting pallets in at least one of warehouse management systems, distribution centres or manufacturing facilities.
Description of the Related Art
[0002] Pallet stacker machines are used in warehouses, distribution centres and/ or other material handling operations. The pallet stackers are designed to simplify the movement of heavy loads, on pallets and allow for efficient storage and transportation. The primary function of a pallet stacker is to lift and lower pallets, typically using a hydraulic system. The stacker is equipped with a set of forks that slide under the pallet, allowing it to be lifted off the ground. The hydraulic system is operated by a handle or control panel, enabling the operator to raise or lower the forks as needed. The pallet stackers are typically manual or electric-powered. Manual stackers require the operator to manually pump a handle to raise or lower the forks, while electric stackers use an electric motor and battery to perform the lifting and lowering function.
[0003] The electrical-powered pallet stackers typically have control systems that enable operators to manoeuvre the machine. Electrical failures, such as faulty wiring, damaged control panels, or malfunctioning sensors, can disrupt the control system's functionality, leading to difficulty in steering, lifting, or braking. In manual pallet stackers, human errors contribute to problems with pallet stackers. Inadequate training, improper use of controls, or careless operation can lead to accidents, damage to the machine or the pallets being handled, and potentially endanger the operator or other personnel in the vicinity.
[0004] The existing pallet stackers are adapted to overcome the abovementioned problems by optimizing the electrical and mechanical configurations. Hence, the pallets are not properly handled in the existing pallet stackers as the mechanical configuration is limited with load carrying capacity, size, wheel and tire issues, pallet guiding and handling, turning radius, overall dimensions, and the ability to navigate aisles and tight spaces, stability and balance and high maintenance.
[0005] Accordingly, there remains a mechanism that overcomes the limitation of mechanical configuration in the pallets handling machine.
SUMMARY
[0006] Embodiments herein disclose a mechanical device includes a conveyor assembly, a pair of pillar assembly and a pair of pallet handling assembly. The conveyor assembly is mounted between a pair of pillar assembly. The pair of pillar assembly are mounted aside the conveyor assembly to handle the one or more pallets that are conveyed on the conveyor assembly. The pair of pallet handling assembly are mounted on the pair of pillar assembly. The pair of pallet handling assembly are coupled with a first driving assembly to slide up and slide down on the pair of pillar assembly. When in operation, the pair of pallet handling assembly synchronously slides up and slides down on the pair of pillar assembly between a pallet pick threshold height and a pallet hold threshold height. The pair of pallet handling assembly synchronously extends and contracts one or more of arms towards the one or more of pallets when the pair of pallet handling assembly positioned at the pallet pick threshold height on the pair of pillar assembly. The pair of pallet handling assembly synchronously extend the one or more of arms to hold the one or more of pallets at the pallet hold threshold height on the pair of pillar assembly.
[0007] In some embodiments, the conveyor assembly includes a conveyor base frame, a conveyor channel, a conveyor driving assembly and one or more of conveyor supporting frames. The conveyor base frame forms a table using one or more of structures and one or more conveyor supporting frames to handle one or more pallets. The conveyor channel is coupled with the conveyor base frame for accommodating at least one of one or more bearings, one or more sprockets, or one or more support frames. The conveyor channel conveys the one or more pallets from one or more external conveyors. The conveyor driving assembly is mounted on the conveyor base frame to drive the conveyor channel to convey the one or more pallets from the one or more external conveyors and the one or more conveyor supporting frames.
[0008] In some embodiments, the pillar assembly includes a pillar, slider shaft, one or more of chain drive sprockets and a pallet handling arm driving assembly. The pillar is formed using one or more structural frames. The pillar accommodates at least one of the pallet handling assembly or a chain drive assembly using a slider shaft and the one or more chain drive sprockets. The slider shaft is mounted on both sides of the pillar. The one or more chain drive sprockets is mounted on an outer surface of the pillar which faces towards the conveyor assembly. The pallet handling arm driving assembly drives the pallet handling assembly on the pillar linearly based on the height of the pallet that is handling for at least one palletizing or de-palletizing.
[0009] In some embodiments, the pallet handling assembly includes a pallet arm guide plate, a pair of housing plates, a pair of arm and one or more arm supporting frames. The pallet arm guide plate guides the one or more pallets conveyed from the conveyor assembly. The pair of housing plates are mounted with a slider to slide linearly on the slider shaft. The pair of arms are coupled with an arm driving assembly to extend and contract at the pallet pick threshold height and the pallet hold threshold height to handle the one or more pallets on the conveyor assembly. The one or more arm supporting frames mounts the pair of arms.
[0010] In some embodiments the arm driving assembly includes an arm shaft, an arm driver and an arm stopper plate. The arm shaft couples the pair of arms with an arm driving device. The arm driver is mounted on the housing plates and drives the pair of arms to extend and contract to handle the pallet. The arm stopper plate is mounted with the housing plate and the arm shaft to limit an extension movement and a contraction movement of the pair of arms.
[0011] In some embodiments, the pair of pallet handling assembly synchronously extends the one or more arms towards the pallet at the pallet pick threshold height to pick the pallet from the conveyor assembly. The pallet handling assembly slides toward the pallet hold threshold height on the pair of pillar assembly.
[0012] In some embodiments, the pair of pallet handling assembly slides towards the pallet pick threshold height on the pair of pillar assembly to leave the pallet on the conveyor assembly. The pair of pallet handling assembly synchronously contracts the one or more arms from the pallet when the pair of pallet handling assembly positioned at the pallet pick threshold height on the pair of pillar assembly.
[0013] In another aspect, a method of sorting one or more pallets using a mechanical device includes (a) guiding one or more pallets between a pair of pillar assembly on the conveyor assembly, (b) the synchronously sliding up and sliding down a pair of pallet handling assembly between a pallet pick threshold height and a pallet hold threshold height on the pair of pillar assembly, (c) synchronously extending and contracting one or more arms towards the one or more pallets to sort the one or more pallets.
[0014] In some embodiments, the method includes synchronously extending and contracting the one or more arms to pick and drop the pallet on the conveyor assembly at the pallet pick threshold height when the pair of pallet handling assembly is positioned at the pallet pick threshold height on the pair of pillar assembly.
[0015] In some embodiments, the method includes (a) synchronously sliding up the pair of pallet handling assembly with the pallet to the pallet hold threshold height on the pair of pillar assembly for enabling the conveyor assembly to position the next pallet for sorting and (b) synchronously sliding down the pair of pallet handling assembly with the pallet to the pallet pick threshold height on the pair of pillar assembly to pick the next pallet positioned in the conveyor assembly. The one or more arms contract when the pallet picked by the one or more arms is positioned on the next pallet which is positioned on the conveyor assembly when the pair of pallet handling assembly are sliding down on the pair of pillar assembly towards the pallet pick threshold height.
[0016] Efficiency, space optimization, workflow management, quality control, and data tracking are all benefits of the mechanical device. They aid in more efficient operations, higher productivity, and better pallet management across a range of industrial and logistical environments by automating the sorting process. A mechanical device may dramatically boost production and efficiency by automating the process. It can swiftly and correctly handle a large number of pallets, decreasing the danger of human mistakes and the necessity for manual labor. The mechanical device equipment is made to intelligently arrange pallets according to predetermined standards, such as size, weight, destination, or other pertinent variables.
BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The embodiments herein will be better understood from the following detailed description with reference to the drawings, in which:
[0018] FIG. 1 illustrates an exemplary view of a mechanical device for handling and sorting pallets in at least one of warehouse management systems, distribution centres or manufacturing facilities according to some embodiments herein;
[0019] FIG. 2 illustrates an exemplary view of a pillar assembly of a mechanical device according to some embodiments herein;
[0020] FIG. 3 illustrates an exemplary view of a pallet handling assembly of a mechanical device according to some embodiments herein;
[0021] FIG. 4 illustrates an exemplary view of an arm driving assembly of the pallet sorting machine according to some embodiments herein;
[0022] FIG. 5 illustrates an exemplary block diagram of a control unit of a mechanical device for handling and sorting pallets in at least one of warehouse management systems, distribution centres or manufacturing facilities according to some embodiments herein; and
[0023] FIG. 6 illustrates a flow diagram of a method of method of sorting a plurality of pallets using a mechanical device of FIG. 1 according to some embodiments herein.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
[0024] The embodiments herein and the various features and advantageous details thereof are explained more fully with reference to the non-limiting embodiments that are illustrated in the accompanying drawings and detailed in the following description. Descriptions of well-known components and processing techniques are omitted so as to not unnecessarily obscure the embodiments herein. The examples used herein are intended merely to facilitate an understanding of ways in which the embodiments herein may be practiced and to further enable those of skill in the art to practice the embodiments herein. Accordingly, the examples should not be construed as limiting the scope of the embodiments herein.
[0025] An objective of the current invention is to provide a mechanism that sorts pallets and removes lessens the limitations mentioned above. These goals are accomplished using the method described in the appended description. As mentioned, there remains a need for a mechanism that overcomes the limitation of locking and unlocking the pallets when handling and sorting on a conveyor. Referring now to the drawings, and more particularly to FIG. 1 through 6, where similar reference characters denote corresponding features consistently throughout the figures, preferred embodiments are shown.
[0026] FIG. 1 illustrates an exemplary view of a mechanical device 100 for handling and sorting pallets in at least one of warehouse management systems, distribution centres or manufacturing facilities according to some embodiments herein. The mechanical device 100 includes a conveyor assembly 102, a pair of pillar assembly 104A and 104B and a pair of pallet handling assembly 106A and 106B. The conveyor assembly 102 transfers one or more pallets between one or more working stations. In some embodiments, the conveyor assembly 102 includes a conveyor base frame 108, a conveyor channel 110, a conveyor driving assembly 112 and one or more conveyor supporting frames 114A-N. The conveyor base frame 108 includes one or more tube structures that are coupled with the one or more conveyor supporting frames 114A-N. In some embodiments, the conveyor base frame 108 and the one or more conveyor supporting frames 114A-N form a table for handling the one or more pallets. The conveyor channel 110 is coupled with a top portion of the conveyor base frame 108. The conveyor channel 110 accommodates one or more bearings, one or more sprockets, one or more supporting frames at an inside portion of the conveyor channel 110. The conveyor driving assembly 112 includes a conveyor driving motor, a conveyor driving shaft, one or more flange bearings and one or more sprockets. The driving shaft is coupled with the conveyor driving motor and at least one of chains or belts of the conveyor assembly 102 using the one or more flange bearings and the one or more sprockets. In some embodiments, the one or more flange bearings and the one or more sprockets are coupled on the conveyor channel 110 using one or more face plates and one or more bolts. In some embodiments, the one or more bolts are used with one or more plain washers. In some embodiments, the one or more sprockets are used to increase tension on at least one chain or belt of the conveyor assembly 102. The conveyor base frame 108 includes at least two conveyor channels to transfer the one or more pallets. In some embodiments, the conveyor assembly 102 includes a pallet conveyor guide plate and a chain guide plate.
[0027] The pair of pillar assembly 104A and 104B are located aside the conveyor assembly 102 at a desired distance to handle the one or more pallets that are transferring on the conveyor assembly 102. The pillar assembly 104A and 104B are mounted on the ground using a pillar base plate. The pillar assembly 104 includes a pillar, a slider shaft, a chain drive assembly, one or more chain drive sprockets and a pallet handling driving assembly. In some embodiments, the pillar accommodates at least one of the pallet handling assembly 106 or a chain drive assembly using the slider shaft and the one or more chain drive sprockets. The pallet handling driving assembly is coupled with the chain drive using one or more chain drive sprockets. In some embodiments, the chain drive of both the pillar assembly 104A and 104B are coupled with the pallet handling driving assembly using a driving shaft. In some embodiments, the driving shaft is coupled with the chain driving assembly using one or more chain drive sprockets.
[0028] The pair of pallet handling assembly 106A and 106B handle the one or more pallets that are conveyed from the conveyor assembly 102. The pallet handling assembly 106 includes a pallet arm guide plate, a pair of housing plates, a pair of arms, an arm shaft, an arm driving assembly, one or more arm supporting frames and a slider. The pallet handling assembly 106 mounts the slider on the housing plates. The arms are coupled with the arm shaft using one or more flange bearings. The arm-driving assembly drives the pair of arms using the arm shaft that. In some embodiments, the pair of pallet handling assembly 106A and 106B slide on the pair of pillar assembly 104A and 104B using the slider and the slider shaft. The pair of pallet handling assembly 106A and 106B synchronously slide up and slide down on the pair of pillar assembly 104A and 104B. In some embodiments, the pair of pallet handling assembly 106A and 106B slide on the pair of pillar assembly 104A and 104B between a pallet pick threshold height and a pallet hold threshold height. The pallet handling assembly 106 is driven linearly on the pillar assembly 104 to handle the one or more pallets based on a height of the pallet. In some embodiments, the pallet handling assembly 106 drives the pair of arms to lock and unlock the pallet when performing at least one of palletizing and de-palletizing. In some embodiments, the pair of arms synchronously extends and contracts towards the pallet that is conveyed on the conveyor assembly 102 for handling the pallet. The pair of arms are extended and contracted synchronously at the pallet pick threshold height to pick and drop the pallet on the conveyor assembly 102. The pair of arms are extended synchronously at the pallet hold threshold height to hold the pallet on the pair of pillar assembly 102A and 102B. In some embodiments, the conveyor assembly 102 conveys the next pallet to handle when the pair of arms holds the pallet at the pallet hold threshold height. In some embodiments, the pallet handling assembly 106 is automated using at least one of hydraulics, electrical or electronic control devices.
[0029] With reference to FIG. 1, FIG. 2A and 2B illustrate an exemplary view of the pillar assembly 104 of the mechanical device 100 according to some embodiments herein. The pillar assembly 104 includes a pillar 202, a slider shaft 204, a chain drive assembly 206, one or more chain drive sprockets 208A-N and a pallet handling driving assembly 210. The pillar 202 is formed using one or more structural frames. The pillar 202 is mounted on the ground and aside to the conveyor assembly 102. In some embodiments, the mechanical device 100 includes at least two pillars 202A and 202B. The pillar 202 mounts the slider shaft 204 and one or more chain drive sprockets 208A-N on an outer surface. In some embodiments. the one or more chain drive sprockets 208A-N are mounted on the outer surface which faces towards the conveyor assembly 106. In some embodiments, the slider shaft 204 is mounted on both the side surfaces of the pillar 202.
[0030] The chain drive assembly 206 is coupled with the pallet handling driving assembly 210 using the one or more chain drive sprockets 208A-N that are mounted on the pillar 202. In some embodiments, the one or more chain drive sprockets are mounted on the pillar 202 using one or more bearings. The pallet handling driving assembly 210 drives one or more pallet handling assembly 106 using the drive shaft 212. In some embodiments, the pallet handling driving assembly includes a driving motor 214, a gear assembly 216 and the drive shaft 212. In some embodiments, the drive shaft 212 is mounted with the one or more pallet handling assembly 106 using one or more bearings. The pallet handling assembly 106 is coupled with the chain drive assembly 206 using at least one coupling component. pallet handling driving assembly 210 drives the pallet handling assembly 106 on the pillar 202 between the pallet pallet pick threshold height and the pallet hold threshold height. In some embodiments, the pallet handling driving assembly 210 drives the pallet handling assembly 106 on the pillar 202 linearly based on the height of the pallet that is handling for at least one palletizing or de-palletizing.
[0031] With reference to FIG. 1 to 2B, FIG. 3 illustrates an exemplary view of the pallet handling assembly 106 of the mechanical device 100 according to some embodiments herein. The pallet handling assembly 106 includes a pallet arm guide plate 302, a pair of housing plates 304A and 304B, a pair of arms 306A and 306B and one or more arm supporting frames 308A-N. In some embodiments, the pallet handling assembly 106 includes an arm shaft, an arm driving assembly, and a slider. The pallet arm guide plate 302 guides the one or more pallets that are conveyed from the conveyor assembly 102. In some embodiments, the guide plate 302 is made with a sheet metal. The pair of housing plates 304A and 304B that are mounted with the slider. The slider is mounted on the housing plate 304 to slide on the slider shaft 204 when the pallet handling assembly 106 moves linearly on the pillar assembly 104. The pair of arms 306A and 306B are coupled on the arm shaft using the one or more flange bearings and one or more supporting plates. The arm shaft is coupled with at least one of the hydraulic, electrical or electronic components that operates the arm shaft. The arm shaft is coupled with a sensor plate to determine the position of the pair of arms 306A and 306B. The mechanical device 100 drives the pallet handling assembly 106 linearly on the pillar. The mechanical device 100 drives the arm shaft to extend and contract the pair of arms 306A and 306B synchronously to pick and drop the pallet when performing at least one of palletizing and de-palletizing.
[0032] With reference to FIG. 1 to 3, FIG. 4 illustrates an exemplary view of an arm driving assembly 400 of the pallet sorting machine 100 according to some embodiments herein. The arm driving assembly 400 includes an arm shaft 402, a slider 404 and an arm stopper plate 406. The arm shaft 402 is coupled with at least one of the arms 306A or 306B. In some embodiments, the arm shaft 402 drives at least one of the arms 306A or 306B synchronously using at least one of the electrical actuators, the motors or hydraulic actuators. In some embodiments, the arms 306A and 306B and the arm shaft 402 mounted on the pallet handling assembly 106 using at least one of the flange bearings and the one or more supporting plates. The slider 404 is mounted on the housing plate 304 and drives the pair of arms to extend and contract to handle the pallet. The arm stopper plate 406 is mounted on the housing plate 304 and the arm shaft 402 to limit an extension movement and a contraction movement of the pair of arms 306A and 306B.
[0033] FIG. 5 illustrates an exemplary block diagram of a control unit 500 of a pallet sorting machine 100 according to some embodiments herein. The block diagram of the control unit 500 includes a processor 502, one or more sensors 504A-N and one or more relays 506A-N. The processor 502 is communicatively connected with a memory to access one or more predetermined threshold values associated with a pallet. The one or more predetermined threshold values include at least one of a pallet length threshold, a pallet width threshold, a pallet height threshold, a pallet handling assembly up movement threshold or a pallet handling assembly down movement threshold. The processor 502 analyses the one or more signals from the one or sensors 504A-N and determines that the pallet is reached the at least one threshold value. In some embodiments, the sensors identify the pallet position on the conveyor assembly using one or more sensors 504A-N. When the processor 502 determines the pallet position, the one or more relays 506A-N are enabled to drive at least one of the conveyor driving assembly 112, the pallet handling driving assembly, the chain drive assembly 206, or the arm driving assembly. The processor 502 enables the one or more relays 506A-N to drive at least one of the conveyor driving assembly 112, the pallet handling driving assembly, the chain drive assembly 206, or the arm driving assembly to handle pallets on the conveyor assembly 102 and the pair of pillar assembly 104A and 104B.
[0034] The one or more relays 506A-N are enabled by the processor 502 to drive the pallet handling assembly 106 to move linearly on the pillar assembly 104 when the pallet is in the picking position on the conveyor assembly 102. The processor 502 drives the pair of arms 306A and 306B to handle the pallet to perform at least one of stacking or de-stacking the pallet. The processor 502 drives the conveyor assembly 102 to allow a next pallet for sorting once the pallet is handled for at least one of stacking or de-stacking. The processor 502 drives the pallet handling assembly 106 to at least one of a pallet pick threshold height or a pallet hold threshold heightto perform at least one of stacking or de-stacking the next pallet. In some embodiments, the processor 502 controls the pallet handling assembly 106 movement and the pair of arms 306A and 306B movement based on at least one of the pallet length threshold, the pallet width threshold, the pallet height threshold, the pallet handling assembly up movement threshold or the pallet handling assembly down movement threshold.
[0035] With reference to FIG. 1 to FIG. 5, FIG. 6 illustrates a flow diagram of a method of method of sorting a plurality of pallets using the mechanical device 100 of FIG. 1 according to some embodiments herein. At step 602, the one or more pallets are guided between the pair of pillar assembly 104A and 104B on the conveyor assembly 102. At step 604, the pair of pallet handling assembly 106A and 106B synchronously sliding up and sliding down between a pallet pick threshold height and a pallet hold threshold height on the pair of pillar assembly. At step 606, the one or more arms 306A-N are synchronously extending and contracting towards the one or more pallets to sort the one or more pallets.
[0036] the one or more arms 306A-N synchronously extending and contracting to pick and drop the pallet on the conveyor assembly 102 at the pallet pick threshold height when the pair of pallet handling assembly 106A and 106B is positioned at the pallet pick threshold height on the pair of pillar assembly 104A and 10B.
[0037] The pair of pallet handling assembly 106A and 106B synchronously sliding up with the pallet to the pallet hold threshold height on the pair of pillar assembly 104A and 104B for enabling the conveyor assembly 102 to position the next pallet for sorting. The pair of pallet handling assembly 106A and 106B synchronously sliding down with the pallet to the pallet pick threshold height on the pair of pillar assembly 104A and 104B to pick the next pallet positioned in the conveyor assembly 102. The one or more arms 306A-N contract when the pallet picked by the one or more arms 306A-N is positioned on the next pallet which is positioned on the conveyor assembly 102 when the pair of pallet handling assembly 106A and 106B are sliding down on the pair of pillar assembly 104A and 104B towards the pallet pick threshold height.
,CLAIMS:We claim:
1. A mechanical device (100) comprising,
a conveyor assembly (102) that is mounted between a pair of pillar assembly (104A and 104B);
a pair of pillar assembly (104A and 104B) that are mounted aside the conveyor assembly (102) to handle the plurality of pallets that are conveyed on the conveyor assembly; and
a pair of pallet handling assembly (106A and 106B) that are mounted on the pair of pillar assembly (104A and 104B), wherein the pair of pallet handling assembly (106A and 106B) are coupled with a first driving assembly to slide up and slide down on the pair of pillar assembly (104A and 104B),
wherein when in operation,
the pair of pallet handling assembly (106A and 106B) synchronously slides up and slides down on the pair of pillar assembly (104A and 104B) between a pallet pick threshold height and a pallet hold threshold height, wherein the pair of pallet handling assembly (106A and 106B) synchronously extends and contracts a plurality of arms (306A-N) towards the plurality of pallets when the pair of pallet handling assembly (106A and 106B) positioned at the pallet pick threshold height on the pair of pillar assembly (104A and 104B), wherein the pair of pallet handling assembly (106A and 106B) synchronously extend the plurality of arms (306A-N) to hold the plurality of pallets at the pallet hold threshold height on the pair of pillar assembly (104A and 104B).

2. The mechanical device (100) as claimed in claim 1, wherein the conveyor assembly (102) comprises
a conveyor base frame (108) forms a table using a plurality of structures and a plurality of conveyor supporting frames (114A-N) to handle a plurality of pallets;
a conveyor channel (110) that is coupled with the conveyor base frame (108) for accommodating at least one of a plurality of bearings, a plurality of sprockets, or a plurality of support frames, wherein the conveyor channel (110) conveys the plurality of pallets from a plurality of external conveyors;
a conveyor driving assembly (112) that is mounted on the conveyor base frame (108) to drive the conveyor channel (110) to convey the plurality of pallets from the plurality of external conveyors; and
the plurality of conveyor supporting frames (114A-N).

3. The mechanical device (100) as claimed in claim 1, wherein the pillar assembly (104) comprises
a pillar (202) that is formed using a plurality of structural frames, wherein the pillar (202) accommodates at least one of the pallet handling assembly (106) or a chain drive assembly (206) using a slider shaft (204) and the one or more chain drive sprockets (208A-N);
the slider shaft (204) that is mounted on both sides of the pillar (202);
a plurality of chain drive sprockets (208A-N) that is mounted on an outer surface of the pillar (202) which faces towards the conveyor assembly (102); and
a pallet handling arm driving assembly (210) that drives the pallet handling assembly (106) on the pillar (202) linearly based on the height of the pallet that is handling for at least one palletizing or de-palletizing.

4. The mechanical device (100) as claimed in claim 1, wherein the pallet handling assembly (106) comprises
a pallet arm guide plate (302) that guides the plurality of pallets conveyed from the conveyor assembly (102);
a pair of housing plates (304A and 304B) that are mounted with a slider (404) to slide linearly on the slider shaft (204);
a pair of arms (306A and 306B) that are coupled with an arm driving assembly (210) to extend and contract at the pallet pick threshold height and the pallet hold threshold height to handle the plurality of pallets on the conveyor assembly (102); and
a plurality of arm supporting frames (308A-N) that mounts the pair of arms (306A and 306B).

5. The mechanical device (100) as claimed in claim 1, wherein the arm driving assembly (210) comprises
an arm shaft (402) that couples the pair of arms (306A and 306B) with an arm driving device;
an arm driver (404) that is mounted on the housing plates (304A and 304B) and drives the pair of arms to extend and contract to handle the pallet; and
an arm stopper plate (406) that is mounted with the housing plate (304) and the arm shaft (402) to limit an extension movement and a contraction movement of the pair of arms (306A and 306B).

6. The mechanical device (100) as claimed in claim 1, wherein the pair of pallet handling assembly (106A and 106B) synchronously extends the plurality of arms (306A-N) towards the pallet at the pallet pick threshold height to pick the pallet from the conveyor assembly (102), wherein the pallet handling assembly (106) slides toward the pallet hold threshold height on the pair of pillar assembly (104A and 104B).

7. The mechanical device (100) as claimed in claim 1, wherein the pair of pallet handling assembly (106A and 106B) slides towards the pallet pick threshold height on the pair of pillar assembly (104A and 104B) to leave the pallet on the conveyor assembly (102), wherein the pair of pallet handling assembly (106A and 106B) synchronously contracts the plurality of arms (306A-N) from the pallet when the pair of pallet handling assembly (106A and 106B) positioned at the pallet pick threshold height on the pair of pillar assembly (104A and 104B).

8. A method of sorting a plurality of pallets using a mechanical device (100) comprises
guiding the plurality of pallets between a pair of pillar assembly (104A and 104B) on the conveyor assembly (102);
synchronously sliding up and sliding down a pair of pallet handling assembly (106A and 106B) between a pallet pick threshold height and a pallet hold threshold height on the pair of pillar assembly (104A and 104B); and
synchronously extending and contracting a plurality of arms (306A-N) towards the plurality of pallets to sort the plurality of pallets.

9. The method as claimed in claim 8, wherein the method comprises
synchronously extending and contracting the plurality of arms (306A-N) to pick and drop the pallet on the conveyor assembly (102) at the pallet pick threshold height when the pair of pallet handling assembly (106A and 106B) is positioned at the pallet pick threshold height on the pair of pillar assembly (104A and 10B).

10. The method as claimed in claim 8, wherein the method comprises
synchronously sliding up the pair of pallet handling assembly (106A and 106B) with the pallet to the pallet hold threshold height on the pair of pillar assembly (104A and 104B) for enabling the conveyor assembly (102) to position the next pallet for sorting; and
synchronously sliding down the pair of pallet handling assembly (106A and 106B) with the pallet to the pallet pick threshold height on the pair of pillar assembly (104A and 104B) to pick the next pallet positioned in the conveyor assembly (102), wherein the plurality of arms (306A-N) contract when the pallet picked by the plurality of arms (306A-N) is positioned on the next pallet which is positioned on the conveyor assembly (102) when the pair of pallet handling assembly (106A and 106B) are sliding down on the pair of pillar assembly (104A and 104B) towards the pallet pick threshold height.