Silkworm rearing industry cocoon picking machine

Abstract

The present application relates to cocoon picking equipment technical field, disclose a kind of sericulture cocoon picking machine, including rack, stamping assembly, cocoon picking assembly, four positioning assemblies and cocoon collecting box.Hollow area for picking cocoon is provided on the top plate of the rack, the stamping assembly is set on the top of the rack, the stamping assembly is used to move the cocoon picking assembly up and down to the control area, four positioning assemblies are used to position the square cluster, the cocoon collecting box is set on the rack and located below the hollow area.The present application can splice different number of splicing blocks according to corresponding square cluster to carry out cocoon picking operation to different specifications of square cluster, then position square cluster through four positioning assemblies, so that cocoon picking fork, square cluster and square hole on square plate are one-to-one corresponding, then realize the function of picking cocoon by moving cocoon picking fork downward through stamping assembly, can match different specifications of square cluster, with high practicability and cost performance.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cocoon picking equipment, in particular to a cocoon picking machine for sericulture. BACKGROUND

[0002] After the domestic silkworm is raised to maturity, it usually forms cocoon clusters in the square holes of a square grid. The square grid is generally a long strip-shaped grid piece that is inserted horizontally and vertically to form a square grid body with a plurality of square holes. The domestic silkworm forms cocoon clusters in the square holes. When the cocoon clusters are picked, the cocoon clusters are usually taken out one by one from the square holes by fingers. This picking method is extremely low in efficiency and high in labor cost. In order to improve the production efficiency, a variety of mechanized cocoon picking equipment has appeared on the market. A Chinese invention patent "Automatic cocoon picking system, automatic cocoon picking machine and cocoon picking method" (application number: CN201810920514.7, publication date: December 18, 2018) discloses an automatic cocoon picking system, an automatic cocoon picking machine and a cocoon picking method. The system comprises a conveying and centering module that conveys the square grid after detection. A visual recognition module is connected to the conveying and centering module. The visual recognition module collects images of the square grid conveyed by the conveying and centering module and identifies cocoon clusters and the frame of the square grid. A conveying and clamping module is connected to the visual recognition module. The conveying and clamping module conveys, detects and clamps the square grid. A cocoon picking manipulator is arranged on the conveying and clamping module to pick the cocoon clusters from the square grid. A control module is communicatively connected to and controls the conveying and centering module, the visual recognition module, the conveying and clamping module and the cocoon picking manipulator. Although the patent can quickly pick cocoon clusters, the existing square grids have many specifications. Different sericulture factories use different specifications of square grids. Therefore, the patent has low practicability and cannot meet the needs of picking cocoon clusters of different specifications. In addition, the square grid is not positioned during the conveying process. The cocoon picking may deviate and damage the square grid, thereby increasing the production cost. SUMMARY

[0003] The present application aims to provide a cocoon picking machine for sericulture that can match square grids of different specifications and has high practicability and cost performance.

[0004] To achieve the above-mentioned purpose, the present application provides a cocoon picking machine for sericulture, comprising:

[0005] A machine frame is provided with a hollow area for picking cocoon clusters on the top plate. The bottom of the hollow area is provided with a square grid plate that matches the square grid.

[0006] A punching assembly is arranged on the top of the machine frame.

[0007] The boll picking assembly comprises a mounting plate arranged at the output end of the punching assembly, a plurality of splicing blocks arranged at the bottom of the mounting plate, and a plurality of boll picking forks arranged at the bottom of the corresponding splicing blocks. The plurality of splicing blocks are arrayed at the bottom of the mounting plate, can be spliced and detached with each other, and are opposite to the squares on the square cluster. The punching assembly is used to move the boll picking assembly up and down to the hollow area.

[0008] The positioning assembly is arranged at the front, rear, left and right four sides of the hollow area.

[0009] The boll collecting box is arranged on the rack and below the hollow area.

[0010] Preferably, the splicing block comprises a block body, the top and bottom of the block body are provided with plug-in connectors, the mounting plate is arrayed with a plurality of plug-in holes, the plug-in connectors are tightly matched with the plug-in holes, the same groove and protrusion are respectively arranged on the four sides of the block body, the groove and the protrusion are dovetail-shaped, the protrusion can be inserted into the groove, and the groove and the protrusion are reversely connected and collinear on the connection side.

[0011] Preferably, the bottom of the splicing block is provided with a cross groove, a sliding block is slidably connected in the cross groove, the top of the boll picking fork is provided with a threaded rod, the sliding block is provided with a threaded hole matched with the threaded rod, and the splicing block and the boll picking fork are fixedly connected through the threaded rod and the threaded hole.

[0012] Preferably, the punching assembly comprises a mounting frame arranged at the top of the rack, a linear driving part arranged at the top of the mounting frame, and a linear guide rod arranged between the mounting frame and the rack. The output end of the linear driving part is in transmission connection with the mounting plate, and the linear guide rod penetrates the mounting plate.

[0013] Preferably, the positioning assembly comprises:

[0014] The positioning plate is arranged in the hollow area and can move linearly back and forth relative to the hollow area.

[0015] The pushing rod is connected with the positioning plate at one end and is inserted into a linear guide hole arranged in the top plate at the other end.

[0016] A pushing block, one end of the pushing block is connected with the other end of the pushing rod, and the other end of the pushing block penetrates through and extends to the top of the top plate, the top of the top plate is provided with a linear guide groove in communication with the linear guide hole, and the pushing block is slidingly connected in the linear guide groove;

[0017] A horizontal plate, the horizontal plate is arranged at the other end of the pushing block, a positioning hole is arranged at the top of the horizontal plate, and a plurality of insertion holes corresponding to the positioning hole are arranged on the top plate at intervals;

[0018] An insertion piece, the insertion piece is inserted into the insertion hole from the positioning hole on the horizontal plate to position the positioning plate.

[0019] Preferably, the insertion holes are arranged in two rows, the two rows of insertion holes are arranged on the top plate in axial symmetry along the rotation axis of the pushing rod, and the positioning holes are arranged in two, the two positioning holes are arranged on the horizontal plate in axial symmetry along the rotation axis of the pushing rod.

[0020] Preferably, the positioning assembly further comprises two guide rods, the two guide rods are symmetrically arranged at two ends of the positioning plate, and one end of each of the two guide rods away from the positioning plate penetrates through and extends into a guide hole on the top plate.

[0021] Preferably, one end of the guide rod inside the guide hole is provided with a limiting block for limiting the guide rod to be drawn out of the guide hole.

[0022] Preferably, the cocoon picking machine further comprises a shearing assembly arranged below the top plate, and the shearing assembly comprises:

[0023] A driving mechanism, the driving mechanism is arranged below the top plate;

[0024] A shearing blade, the shearing blade is drivingly connected to an output end of the driving mechanism, and the driving mechanism drives the shearing blade to move back and forth on the bottom surface of the lattice plate.

[0025] Preferably, the driving mechanism comprises:

[0026] A driving motor, the driving motor is arranged on the support leg at the bottom of the rack;

[0027] An output shaft, the output shaft is arranged below the top plate and is drivingly connected to the driving motor;

[0028] A transmission shaft, the transmission shaft is arranged below the top plate, the transmission shaft is arranged in parallel with the output shaft, and the distance between the transmission shaft and the output shaft is greater than the length of the lattice plate;

[0029] The transmission wheel is provided with four transmission wheels, which are respectively disposed on the output shaft and at both ends of the transmission shaft;

[0030] The transmission belt is provided in two parts, each transmission belt is provided on the transmission wheel at the same end of the transmission shaft and the output shaft, and the shearing blade is provided between the two transmission belts.

[0031] The beneficial effects of this invention are as follows: This invention can splice different numbers of splicing blocks according to the corresponding square clusters to perform cocoon removal operations on square clusters of different specifications. Then, the square clusters are positioned by four positioning components, so that the cocoon removal fork, the square clusters and the square holes on the square plate correspond one-to-one. Then, the cocoon removal fork is driven to move downward by the stamping component to realize the cocoon removal function. It can match square clusters of different specifications and has high practicality and cost performance.

[0032] Other features and advantages of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0033] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the following detailed description to explain the invention, but do not constitute a limitation thereof. In the drawings:

[0034] Figure 1 A schematic diagram of the structure of a silkworm cocoon harvesting machine according to an embodiment of the present invention is shown;

[0035] Figure 2 A schematic diagram of the structure of a silkworm cocoon harvesting machine according to one embodiment of the present invention is shown (from another perspective).

[0036] Figure 3 A schematic diagram of a splicing block structure according to an embodiment of the present invention is shown;

[0037] Figure 4 A schematic diagram of the top surface structure of the top plate according to an embodiment of the present invention is shown;

[0038] Figure 5 An embodiment of the present invention is shown. Figure 4 Enlarged view of point A in the middle;

[0039] Figure 6 A schematic diagram of the push rod installation according to one embodiment of the present invention is shown;

[0040] Figure 7 A schematic diagram of the shear assembly structure installation according to an embodiment of the present invention is shown;

[0041] Figure 8 A schematic diagram showing the connection between the splicing block and the cocoon-picking fork according to one embodiment of the present invention is shown;

[0042] Figure 9 A sectional view of the splicing block of an embodiment of the present application is shown.

[0043] Figure 10 A schematic view of the internal structure of the cross slot of an embodiment of the present application is shown.

[0044] 1 rack, 101 grid plate, 102 linear guide hole, 103 linear guide slot, 104 insertion hole, 105 guide hole;

[0045] 2 stamping assembly, 21 mounting frame, 22 linear drive part, 23 linear guide rod;

[0046] 3 cocoon picking assembly, 31 mounting plate, 311 plug-in hole, 32 splicing block, 321 block main body, 322 plug-in head, 323 groove, 324 protruding block, 325 cross slot, 326 sliding block, 3261 threaded hole, 33 cocoon picking fork, 331 threaded rod;

[0047] 4 positioning assembly, 41 positioning plate, 42 push rod, 43 push block, 44 cross plate, 441 positioning hole, 45 plug-in piece, 46 guide rod, 461 limiting block;

[0048] 5 cocoon collecting box, 51 handle;

[0049] 6 shearing assembly, 611 drive motor, 612 output shaft, 613 transmission shaft, 614 transmission belt, 615 transmission belt, 62 shearing blade. DETAILED DESCRIPTION

[0050] The specific embodiments of the present application are described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely intended to illustrate and explain the present application, and are not intended to limit the present application.

[0051] Please refer to Figures 1-7The embodiment discloses a cocoon picking machine for sericulture, which comprises a rack 1, a stamping assembly 2, a cocoon picking assembly 3, a positioning assembly 4 and a cocoon collecting box 5. The top plate of the rack 1 is provided with a hollow area for picking cocoons, the bottom of the hollow area is provided with a square grid plate 101 matched with the square grid cluster, the stamping assembly 2 is arranged on the top of the rack 1, the cocoon picking assembly 3 comprises a mounting plate 31 arranged at the output end of the stamping assembly 2, a plurality of splicing blocks 32 arranged at the bottom of the mounting plate 31, and a plurality of cocoon picking forks 33 arranged at the bottom of the corresponding splicing blocks 32, the plurality of splicing blocks 32 are arrayed at the bottom of the mounting plate 31, the adjacent splicing blocks 32 can be spliced and detached, and are opposite to the square grids on the square grid cluster, the stamping assembly 2 is used for moving the cocoon picking assembly 3 up and down in the hollow area, the positioning assembly 4 is provided with four, and the four positioning assemblies 4 are arranged at the front, rear, left and right four sides of the hollow area respectively, and are used for positioning the square grid cluster, and the cocoon collecting box 5 is arranged on the rack 1 and below the hollow area.

[0052] In specific use, according to the specification of the square grid cluster, a corresponding number of splicing blocks 32 are spliced, the square grid cluster is placed at the corresponding position of the square grid plate 101 and the spliced splicing block 32 group after splicing, then the four positioning assemblies 4 are used for positioning the four edges of the square grid cluster, the cocoon picking forks 33 are driven by the stamping assembly 2 to pick the silkworm cocoons on the square grid cluster after positioning, the picked silkworm cocoons fall into the cocoon collecting box 6, the stamping assembly 2 is reset after the picking is completed, then the empty square grid cluster is taken out and placed in the area positioned by the positioning assembly 4, and then the next picking operation is completed. The cocoon picking machine in the embodiment can splice different numbers of splicing blocks 32 according to different specifications of the square grid cluster, thereby adapting to different specifications of the square grid cluster, without the need to replace the cocoon picking machine, thereby reducing the production cost and improving the work efficiency, and the device has high practicability and cost performance.

[0053] In the embodiment, the rack 1 is composed of four supporting feet, four cross bars and a top plate, the four supporting feet are arranged at the four corners of the bottom of the top plate, the four cross bars are connected with the adjacent supporting feet respectively, the hollow area is a rectangular through hole in the middle part of the top plate, the four positioning assemblies 4 are located at the four sides of the rectangular through hole, and the cocoon collecting box 5 is slidingly connected with the cross bars and can be taken out and replaced when the cocoon collecting box 5 is full of silkworm cocoons; more preferably, a handle 51 is arranged on the outside of the cocoon collecting box 5, which facilitates taking out and replacing.

[0054] Please refer to Figure 3The splicing block 32 comprises a block body 321, the top and bottom of the block body 321 are provided with plug-in joints 322, the mounting plate 31 is provided with a plurality of plug-in holes 311, the plug-in joints are tightly matched with the plug-in holes 311, the four sides of the block body 321 are respectively provided with the same recesses 323 and protrusions 324, the recesses 323 and the protrusions 324 are dovetail-shaped, the protrusions 324 can be inserted into the recesses 323, and the recesses 323 and the protrusions 324 are reversely connected and arranged in the same way between the adjacent two sides.

[0055] In the splicing, the adjacent block bodies 321 are inserted up and down, and the corresponding protrusions 324 are inserted into the corresponding recesses 323, so as to be spliced into the corresponding number of splicing blocks 32 of the square cluster, thereby adapting to different specifications of the square cluster, and the splicing mode is simple and easy to operate.

[0056] Please refer to Figures 8-10 Specifically, the bottom of the splicing block 32 is provided with a cross groove 325, the cross groove 325 is slidably connected with a sliding block 326, the top of the cocoon picking fork 33 is provided with a threaded rod 331, the sliding block 326 is provided with a threaded hole 3261 matched with the threaded rod 331, and the splicing block 32 and the cocoon picking fork 33 are fixedly connected through the threaded rod 331 and the threaded hole 3261. Through the arrangement of the cross groove 325, the cocoon picking fork 33 can move forward, backward, left and right relative to the splicing block 32, so as to adjust the distance between the adjacent splicing blocks 32, so that the device can adapt to square clusters with different distances or sizes, thereby improving the practicability of the device. When adjusting, the threaded rod 331 can be screwed into the threaded hole 3261, then the distance between the adjacent cocoon picking forks 33 can be adjusted according to the actual situation, and after the adjustment, the cocoon picking fork 33 is turned to make the threaded rod 331 completely screwed into the threaded hole 3261, at this time, the cocoon picking fork 33 is in complete abutment with the splicing block 32, so as to fix the cocoon picking fork 33 and the splicing block 32.

[0057] Please refer to Figure 1 The punching assembly 2 comprises a mounting frame 21 arranged at the top of the rack 1, a linear driving part 22 arranged at the top of the mounting frame 21, and a linear guide rod 23 arranged between the mounting frame 21 and the rack 1, the output end of the linear driving part 22 is in transmission connection with the mounting plate 31, and the linear guide rod 23 penetrates the mounting plate 31.

[0058] In the embodiment, the mounting frame 21 is structurally identical to the rack 1, and the linear driving part 22 is arranged at the bottom of the top plate of the top of the mounting frame 21, and can be a linear pushing mechanism such as an electric push rod, a pneumatic cylinder or an oil cylinder. The linear guide rods 23 are arranged at four corners of the mounting plate 31, and can enable the cocoon picking assembly 3 to move up and down stably.

[0059] Please refer to Figures 4-6 The positioning assembly 4 comprises a positioning plate 41, a pushing rod 42, a shifting block 43, a cross plate 44 and a plug-in part 45. The positioning plate 41 is arranged in the hollow area and can move linearly back and forth relative to the hollow area. One end of the pushing rod 42 is connected with the positioning plate 41, and the other end is inserted into a linear guide hole 102 arranged in the top plate. One end of the shifting block 43 is connected with the other end of the pushing rod 42, and the other end extends through the top plate. The top plate is provided with a linear guide slot 103 communicating with the linear guide hole 102, and the shifting block 43 is slidingly connected in the linear guide slot 103. The cross plate 44 is arranged at the other end of the shifting block 43, and the top of the cross plate 44 is provided with a positioning hole 441. A plurality of insertion holes 104 corresponding to the positioning hole 441 are arranged on the top plate at intervals. The plug-in part 45 can be inserted into the insertion hole 104 from the positioning hole 441 of the cross plate 44 to position the positioning plate 41.

[0060] When the square grid cluster needs to be positioned, the shifting block 43 drives the pushing rod 42 to push the positioning plate 41 to move towards the square grid cluster. When the positioning plate 41 abuts against the square grid cluster, the plug-in part 45 is inserted into the positioning hole 441 and the insertion hole 104 to lock the position of the positioning plate 41, which is simple and convenient. The insertion holes 104 are arranged in two rows and are distributed on the top plate along the rotation axis of the pushing rod 42. The positioning holes 441 are arranged in two rows and are distributed on the cross plate 44 along the rotation axis of the pushing rod 42, which makes the positioning more stable, makes the square grid cluster more stable during cocoon picking, improves the cocoon picking efficiency and avoids the damage of the square grid cluster by the cocoon picking fork 33 during the cocoon picking process. The interval of the insertion holes 104 is equal to the side length of the square grid of the square grid cluster, which makes the adjustment more convenient. When the specification of the square grid cluster is known in advance, the positioning plate 41 can be adjusted in advance, which improves the work efficiency. Specifically, the plug-in part 45 is a bolt, and the insertion hole 104 is a threaded hole corresponding to the bolt, which is convenient and stable to fix, thereby improving the stability of the positioning.

[0061] The positioning assembly 4 further comprises two guide rods 46 symmetrically arranged at two ends of the positioning plate 41, and the two guide rods 46 are penetrated through and extended into the guide holes 105 on the top plate at one end away from the positioning plate 41. The guide rods 46 can provide positioning for the movement of the positioning plate 41, and the positioning plate 41 will not shake left and right after being positioned, further improving the stability of the positioning. The one end of the guide rod 46 inside the guide hole 105 is provided with a limiting block 461 for limiting the guide rod 46 from being pulled out of the guide hole 105, thereby improving the safety.

[0062] Please refer to Figure 7 , the silkworm breeding industry also comprises a shearing assembly 6 arranged below the top plate, and the shearing assembly 6 comprises a driving mechanism 61 and a shearing blade 62. The driving mechanism 61 is arranged below the top plate, specifically on the supporting legs, and the shearing blade 62 is drivingly connected to the output end of the driving mechanism 61. The driving mechanism 61 drives the shearing blade 62 to move back and forth on the bottom surface of the lattice plate 101. The shearing assembly 6 can cut off the cocoon that is pushed out of the lattice plate 101 and not fallen into the cocoon collecting box 5, and then falls into the cocoon collecting box 5, thereby improving the cocoon picking efficiency.

[0063] Specifically, the driving mechanism 61 comprises a driving motor 611, an output shaft 612, a transmission shaft 613, four transmission wheels 614, and two transmission belts 615. The driving motor 611 is arranged on the supporting legs at the bottom of the frame 1, the output shaft 612 is arranged below the top plate and drivingly connected to the driving motor 611, the transmission shaft 613 is arranged below the top plate and arranged in parallel with the output shaft 612, and the distance between the transmission shaft 613 and the output shaft 612 is greater than the length of the lattice plate 101. The four transmission wheels 614 are arranged at the two ends of the output shaft 612 and the transmission shaft 613, respectively. The two transmission belts 615 are arranged on the transmission wheels 614 at the same end of the transmission shaft 613 and the output shaft 612, and the shearing blade 62 is arranged between the two transmission belts 615.

[0064] In this embodiment, the four transmission wheels 614 are arranged inside the four supporting legs. The transmission wheels 614 can be gears or pulleys. When the transmission wheels 614 are gears, the transmission belts 615 are toothed belts on the inside. When the transmission wheels 614 are pulleys, the transmission belts 615 are belts. The driving motor 611 drives the output shaft 612 to rotate, and then drives the transmission shaft 613 to rotate through the transmission wheels 614 and the transmission belts 615, thereby driving the shearing blade 62 to move back and forth on the bottom of the lattice plate 101 to cut off the cocoon.

[0065] In summary, the embodiment can splice different numbers of splicing blocks 32 according to corresponding square clusters to perform cocoon picking operation on different specifications of square clusters, position the square clusters through four positioning assemblies 4, make the cocoon picking fork 33, the square cluster and the square hole on the square plate 101 one-to-one corresponding, drive the cocoon picking fork 33 to move downward through the stamping assembly 2 to realize the cocoon picking function, can match different specifications of square clusters, has high practicability and cost performance.

[0066] The preferred embodiments of the present application are described in detail above with reference to the drawings, but the present application is not limited to the specific details in the above-described embodiments, and various simple modifications can be made to the technical solutions of the present application within the technical concept of the present application, and these simple modifications all belong to the protection scope of the present application. In addition, it should be noted that various specific technical features described in the above-described specific embodiments can be combined in any appropriate manner without contradiction, and in order to avoid unnecessary repetition, the present application will not further describe various possible combination manners.

[0067] In addition, various different embodiments of the present application can also be combined in any manner, as long as they do not deviate from the idea of the present application, and they should also be considered as disclosed by the present application.

Claims

1. A cocoon-picking machine for sericulture, characterized by comprising: The utility model relates to a cocoon picking device, including: Rack (1), the top of rack (1) is provided with the hollow area for picking cocoon, the bottom of hollow area is provided with the square board (101) with the square cluster is adapted to; Punching assembly (2), punching assembly (2) is set up in the top of rack (1); Picking cocoon assembly (3), picking cocoon assembly (3) includes the mounting plate (31) that sets up in the output end of punching assembly (2), a plurality of the splicing block (32) that sets up in the bottom of mounting plate (31), a plurality of picking cocoon fork (33) that sets up in the bottom of corresponding splicing block (32), a plurality of splicing block (32) array distribution in the bottom of mounting plate (31), adjacent splicing block (32) between can mutually splice detachable, and with the square on the square cluster is opposite, punching assembly (2) is used for moving picking cocoon assembly (3) to hollow area up and down; The bottom of splicing block (32) is provided with cross groove (325), sliding block (326) is slidably connected in cross groove (325), the top of picking cocoon fork (33) is provided with threaded rod (331), the sliding block (326) is provided with the threaded hole (3261) that is matched with threaded rod (331), and splicing block (32) and picking cocoon fork (33) are fixedly connected through threaded rod (331) and threaded hole (3261) between them; Picking cocoon fork (33) further makes threaded rod (331) completely screwed into threaded hole (3261), at this time, picking cocoon fork (33) and splicing block (32) are completely abutted, so as to fix picking cocoon fork (33) and splicing block (32); Positioning assembly (4), positioning assembly (4) is provided with four, four positioning assembly (4) is arranged at the front, rear, left and right four sides of hollow area respectively, and is used for positioning square cluster; Cocoon collecting box (5), cocoon collecting box (5) is arranged on rack (1) and is located below hollow area.

2. The cocoon-picking machine according to claim 1, wherein Splicing block (32) includes block main body (321), the top and bottom of block main body (321) are provided with insertion connector (322), the mounting plate (31) is provided with a plurality of insertion holes (311), the insertion connector is closely matched with the insertion hole (311), the same recess (323) and lug (324) are respectively arranged on the four side surfaces of block main body (321), the recess (323) and the lug (324) are dovetail-shaped, and the lug (324) can be inserted into the recess (323), and is closely matched after insertion, the recess (323) and the lug (324) are reversely connected, the connection side is collinear, and the recess (323) and the lug (324) between adjacent two surfaces are arranged same.

3. The cocoon-picking machine according to claim 1, wherein The punching assembly (2) comprises a mounting frame (21) arranged on the top of the rack (1), a linear driving part (22) arranged on the top of the mounting frame (21), and a linear guide rod (23) arranged between the mounting frame (21) and the rack (1), the output end of the linear driving part (22) is in transmission connection with the mounting plate (31), and the linear guide rod (23) penetrates through the mounting plate (31).

4. The cocoon-picking machine according to claim 1, wherein The positioning assembly (4) comprises: A positioning plate (41) arranged in the hollow area and capable of moving linearly back and forth relative to the hollow area; A push rod (42) having one end connected with the positioning plate (41) and the other end inserted into a linear guide hole (102) arranged in the top plate; A knob (43) having one end connected with the other end of the push rod (42) and the other end penetrating and extending to the top of the top plate, the top of the top plate being provided with a linear guide slot (103) in communication with the linear guide hole (102), and the knob (43) being slidingly connected in the linear guide slot (103); A cross plate (44) arranged at the other end of the knob (43), the top of the cross plate (44) being provided with a positioning hole (441), and a plurality of insertion holes (104) opposite to the positioning hole (441) being arranged on the top plate at intervals; An insertion piece (45) capable of being inserted into the insertion hole (104) from the positioning hole (441) on the cross plate (44) to position the positioning plate (41).

5. The cocoon-picking machine according to claim 4, wherein The insertion hole (104) is arranged in two rows, the two rows of insertion holes (104) are distributed on the top plate in axial symmetry along the rotation axis of the push rod (42), the positioning hole (441) is arranged in two, and the two positioning holes (441) are distributed on the cross plate (44) in axial symmetry along the rotation axis of the push rod (42).

6. The cocoon-picking machine according to claim 4, wherein The positioning assembly (4) further comprises two guide rods (46) symmetrically arranged at the two ends of the positioning plate (41), and the ends of the two guide rods (46) away from the positioning plate (41) penetrate and extend into guide holes (105) on the top plate.

7. The cocoon-picking machine according to claim 6, wherein The end of the guide rod (46) inside the guide hole (105) is provided with a limiting block (461) for limiting the guide rod (46) to be pulled out of the guide hole (105).

8. The cocoon-picking machine according to any one of claims 1 to 7, characterized in that, The cocoon industry cocoon picking machine further comprises a shearing assembly (6) arranged below the top plate, and the shearing assembly (6) comprises: A driving mechanism (61) arranged below the top plate; A shearing blade (62) in transmission connection with the output end of the driving mechanism (61), and the driving mechanism (61) drives the shearing blade (62) to move back and forth on the bottom surface of the square plate (101).

9. The cocoon-picking machine according to claim 8, wherein The driving mechanism (61) comprises: A driving motor (611) arranged on the supporting leg at the bottom of the rack (1); An output shaft (612) is arranged below the top plate and is in transmission connection with the driving motor (611); A transmission shaft (613) is arranged below the top plate, the transmission shaft (613) is arranged in parallel with the output shaft (612), and the distance between the transmission shaft (613) and the output shaft (612) is greater than the length of the square plate (101); Four transmission wheels (614) are arranged, and the four transmission wheels (614) are arranged at the two ends of the output shaft (612) and the transmission shaft (613) respectively; Two transmission belts (615) are arranged, each transmission belt (615) is arranged on the transmission wheels (614) at the same end of the transmission shaft (613) and the output shaft (612), and the shearing blade (62) is arranged between the two transmission belts (615).

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