DESC:DESCRIPTION
TECHNICAL FIELD
[001] This disclosure relates generally to farm equipment, and more particularly to a system for uprooting and collecting weed from soil bed in a field.

BACKGROUND
[002] Weeds are undesired or wild plants which may grow in a field along with cultivated crops. The weeds may compete with cultivated crops, and may absorb nutrients from the soil bed thereby denying nutrition to the cultivated crops. Further, soil nutrient as well as the supplement nutrients like fertilizers which are added to the soil bed or to the crops may get consumed by the weeds. As a result, the crop yield may reduce. It, therefore, becomes important to remove the weeds from the soil bed for effective production of crops.
[003] Various techniques are known for removing weed. For example, these techniques include manually uprooting of the weeds, using mechanical equipment like as rotary tillers and cultivators for uprooting the weeds, and chemical dosing of the field, like spraying herbicides. However, these known techniques prove to be expensive, time-consuming, and may lead to soil degradation. Further, these known techniques are limited to solving only the problem of “re-emergence" of weeds which is a challenge in the field of agriculture.
[004] Therefore, a cost-effective and high-efficiency system capable of uprooting weed, and separating the uprooted weed from the soil is desired.

SUMMARY OF THE INVENTION
[005] In an embodiment, a system for removing weed from soil bed in a field is disclosed. The system may include a feeding unit including a feeder plate having a first end and a second end, and a plurality of V-shaped blades coupled to the feeder plate. The plurality of V-shaped blades may be configured to shear the soil bed to generate soil clods having weed. The system may further include a pulverizing unit positioned towards the second end of the feeder plate, and configured to receive and pulverize the soil clods having weed. The system may further include a separation unit having a plurality of rods arranged along the length of the conveyor assembly, such that adjacent rods of the plurality of rods are separated by a distance to create a gap therebetween. The conveyor assembly may be configured to separate the weed from the pulverized soil. A collection unit may be configured to collect the separated weed from the conveyor assembly of the separation unit.

BRIEF DESCRIPTION OF THE DRAWINGS
[006] The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate exemplary embodiments and, together with the description, serve to explain the disclosed principles.
[007] FIG. 1 illustrates a side view of a system for removing weed from soil bed in a field, in accordance with an embodiment of the present disclosure.
[008] FIG. 2 illustrates a perspective view of a system for removing weed from soil bed in a field, in accordance with an embodiment.
[009] FIG. 3 illustrates a perspective view of a separation unit, in accordance with an embodiment.
DESCRIPTION
[010] Exemplary embodiments are described with reference to the accompanying drawings. Wherever convenient, the same reference numbers are used throughout the drawings to refer to the same or like parts. While examples and features of disclosed principles are described herein, modifications, adaptations, and other implementations are possible without departing from the spirit and scope of the disclosed embodiments. It is intended that the following detailed description be considered as exemplary only, with the true scope and spirit being indicated by the following claims. Additional illustrative embodiments are listed below.
[011] Referring to FIG. 1, a side view of a system 100 for removing weed from soil bed in a field is illustrated, in accordance with an embodiment of the present disclosure. The system 100 may include a feeding unit 101. The feeding unit 101 may include a feeder plate (not shown in FIG. 1) and a plurality of V-shaped blades (not shown in FIG. 1) coupled to the feeder plate and positioned towards the first end of the feeder plate. The plurality of V-shaped blades may be configured to shear the soil bed to generate soil clods having weed. The system 100 may further include a pulverizing unit 102 positioned towards the second end of the feeder plate. The pulverizing unit 102 may be configured to receive the soil clods having weed from the feeder plate. The pulverizing unit 102 may include a rotor shaft having a plurality of rotor blades and is configured to pulverize the soil clods having weed.
[012] The system 100 may further include a separation unit 103 configured to receive the pulverized soil clods having weed from the pulverizing unit 102. The separation unit 103 may include a conveyor assembly (not shown in FIG. 1) having a plurality of rods arranged along the length of the conveyor assembly. Adjacent rods of the plurality of rods may be separated by a gap to create a gap therebetween. The conveyor assembly may be configured to run on a pair of shafts, and may be further configured to separate the weed from the pulverized soil and cause the pulverized soil to fall through the gaps between the adjacent rods of the plurality of rods. The system 100 may further include a collection unit 104 configured to collect the separated weed from the conveyor assembly of the separation unit 103.
[013] Referring now to FIG. 2, a perspective view of the system 100 is illustrated, in accordance with an embodiment of the present disclosure. As mentioned above, the feeder plate 202 may have a first end 202A and a second end 202B. Further, a plurality of V-shaped blades 204 may be coupled to the feeder plate 202, and may be positioned towards the first end 202A of the feeder plate 202. The plurality of V-shaped blades 204 may be configured to shear the soil bed to generate soil clods having weed. In other words, as the tractor would move forward, the plurality of V-shaped blades 204 may be configured to dig in the soil bed to shear the soil bed from the field and transform into soil clods having weed. By the movement of the tractor, the transformed soil clods having weed may further get transmitted to the second end 202B of the feeder plate 202.
[014] In some embodiments, the pulverizing unit 102 may be positioned towards the second end 202B of the feeder plate 202, as shown in FIG. 2. The pulverizing unit 102 may be configured to receive the soil clods having weed from the feeder plate 202. In some embodiments, the pulverizing unit 102 may include a rotor shaft 203A having plurality of rotor blades 203B. The rotor blades 203B may be further configured to pulverize the soil clods having weed by centrifugal action of the rotor shaft 203A and the rotor blades 203B.
[015] Referring now to FIG. 3, a perspective view of the separation unit 103 to separate the pulverized weed from soil clods is illustrated, in accordance with an embodiment of the present disclosure. As mentioned earlier, the separation unit 103 may be configured to receive the pulverized soil clods having weed from the pulverizing unit 102. In some embodiments, the separation unit 103 may include a conveyor assembly 302 having a plurality of rods arranged along the length of the conveyor assembly 302. The adjacent rods of the plurality of rods may be spaced to create a gap therebetween. It may be noted that the gaps in the rod assembly may be adjustable based on the size of soil clods and weed. The conveyor assembly 302 may run on a pair of shafts.
[016] Further, as shown in FIG. 3, the conveyor assembly 302 may include a pair of chains 312 which may be coupled to the pair of shafts via sprockets 316. The plurality of rods may be fitted to the pair of chains 312, such that one end of a rod of the plurality of rods may be fitted to a first chain of the pair of chains 312, and the second end of the rod may be fitted to the second chain of the pair of chains 312. As the sprockets 316 may rotate through the pair of shafts, the conveyor assembly 302 may run on the sprockets 316.
[017] In some embodiments, the conveyor assembly 302 may further be configured to separate the weed from the pulverized soil to fall through the gaps between the adjacent rods of the plurality of rods. It may be understood that the pulverized soil may fall on the conveyor assembly 302 simultaneously as the conveyor assembly 302 is running on the sprockets 316. As the pulverized soil having weeds falls through the conveyor assembly 302, the pulverized soil having weeds may be acted on by the plurality of rods which may cause the weeds in the pulverized soil to be separated from the soil. The weeds may be carried away by the plurality of rods of the conveyor assembly 302. As a result, the weeds may be conveyed towards the collection unit 104. The collection unit 104 may include a bin in which the separated weeds may be collected. Meanwhile, separated soil may fall through the conveyor assembly 302 under the effect of gravity, and may be returned back to the field.
[018] In some embodiments, the system 100 may include a power take off (PTO) unit for generating mechanical power (not shown in FIG.3). The generated mechanical power may be transmitted through a combination of shafts and gears to drive the rotor shaft 203A and the conveyor assembly 302, as shown in FIG. 3. The mechanical power generated from the power take off (PTO) unit may be available via an input shaft 303. It may be noted that the PTO may be of a farm tractor, and as such, the system 100 may be installed on and driven by the farm tractor.
[019] The mechanical power may get transmitted from the input shaft 303 to a transmission shaft 304 via a bevel pinion 305 and bevel gear 306. The mechanical power from the transmission shaft 304 may then be transmitted to an upper conveyor shaft 307 by means of driver spur gear 308 and a driven spur gear 309 which may activate a driver conveyor sprocket 310.
[020] In some embodiments, the mechanical power from the driver conveyor sprocket 310 may be transmitted to drive a driven conveyor sprocket 311 by means of a chain 318, which may further activate a lower conveyor shaft 313. The power from the lower conveyor shaft 313 may be transmitted to rotating axles 314, 317 by means of a gear assembly 315, and may cause the rotor shaft 203A to rotate. It may be noted that the conveyor assembly 302 may be rotated with the help of four sprockets 316. The rotation of the rotor shaft 203A and the conveyor assembly 302 may result in activation of the pulverizing unit 102 and separation unit 103, respectively.
[021] In some embodiment, the system 100 may be implemented for removing water weeds and trash floating on water surface of a shallow water body.
[022] The techniques described above relate to a system for digging out the unwanted weed which may be present in between the crop rows in the field. The above techniques provide a cost-effective, eco-friendly, time saving, and a low-maintenance solution to maintain the productivity of cultivated crops by preventing the re-emergence of weed. It may be noted that the re-emergence of weed on the field is prevented by uprooting and collecting the uprooted weed into a collection unit. The system may further prevent the weed to re-germinate due to uprooting, and also conserve the soil from the use of herbicide or chemicals. Further, by pulverizing and tilling the soil, breathing of the soil and moisture retaining capability of the soil is improved. The system can be easily installed on most existing farm equipment like tractors.
[023] It is intended that the disclosure and examples be considered as exemplary only, with a true scope and spirit of disclosed embodiments being indicated by the following claims.
,CLAIMS:We claim:
1. A system (100) for removing weed from soil bed in a field, the system (100) comprising:
a feeding unit (101) comprising:
a feeder plate (202) having a first end (202A) and a second end (202B); and
a plurality of V-shaped blades (204) coupled to the feeder plate (202) and positioned towards the first end (202A) of the feeder plate (202), wherein the plurality of V-shaped blades (204) is configured to shear the soil bed to generate soil clods having weed;

a pulverizing unit (102) positioned towards the second end (202B) of the feeder plate (202), the pulverizing unit (102) being configured to receive the soil clods having weed from the feeder plate (202), wherein the pulverizing unit (103) comprises a rotor shaft (203A) having plurality of rotor blades (203B), and wherein the rotor shaft (203A) is configured to pulverize the soil clods having weed;

a separation unit (103) configured to receive the pulverized soil clods having weed from the pulverizing unit (102), wherein the separation unit (103) comprises a conveyor assembly (302) having a plurality of rods arranged along the length of the conveyor assembly (302), wherein adjacent rods of the plurality of rods are separated by a distance to create a gap therebetween,

wherein the conveyor assembly (302) is configured to run on a pair of shafts, wherein the conveyor assembly (302) is further configured to separate the weed from the pulverized soil and cause the pulverized soil to fall through the gaps between the adjacent rods of the plurality of rods; and

a collection unit (104) configured to collect the separated weed from the conveyor assembly (302) of the separation unit (103).

2. The system (100) as claimed in claim 1, further comprising a power take off (PTO) unit for generating mechanical power and transmitting the mechanical power to drive the system (100).

3. The system (100) as claimed in claim 1, wherein the conveyor assembly (302) comprises:
a pair of chains (312) coupled to a pair of shafts via sprockets (316); and
the plurality of rods fitted to the pair of chains (312), wherein one end of a rod of the plurality of rods is fitted to a first chain of the pair of chains (312), and the second end of the rod may be fitted to the second chain of the pair of chains (312).