Waste pretreatment device for poultry slaughtering

Abstract

The invention relates to the technical field of poultry slaughtering, in particular to a waste pretreatment device for poultry slaughtering, which comprises a main body cleaning device and a classified collection device. The top of the main body is of a cylindrical structure, the outer wall of the main body is fixedly provided with a first motor, the output end of the first motor is fixedly provided with a first motor output shaft, and the end, away from the first motor, of the first motor output shaft penetrates through the cleaning roller and is fixedly provided with a filter cartridge; a connecting disc is slidably mounted on the inner wall of the filtering roller, an open type material containing roller is arranged on one side of the connecting disc and slidably connected with the filtering roller, and a sealing disc is fixedly mounted at the end, away from the connecting disc, of the material containing roller; the first motor drives the cleaning roller, the filtering roller and the material placing roller to rotate so as to clean the poultry slaughtering waste materials, and the device cleans the poultry slaughtering waste materials under the action of centrifugal force, throws off surface moisture, and deeply removes smudginess.

Description

Technical Field

[0001] This invention relates to the field of poultry slaughtering technology, and in particular to a waste pretreatment device for poultry slaughtering. Background Technology

[0002] Poultry slaughter waste refers to various wastes generated during the slaughtering and processing of poultry, mainly including feathers, internal organs, bone fragments, and keratinous parts such as claws and beaks. This type of waste is rich in protein and oil, and has certain potential for resource utilization. Currently, the industry mainly uses simple pretreatment methods for slaughter waste, such as direct landfilling, incineration, and simple composting, without scientific pretreatment, leading to environmental pollution and resource waste, demonstrating significant limitations. With technological advancements, the demand for more refined resource utilization is increasing. Therefore, before processing poultry slaughter waste, it is necessary to sterilize, clean, and meticulously classify the waste to render it harmless and ready for direct processing. For example, internal organs can be used to make pet food, and feathers can be used to make badminton shuttlecocks or insulating stuffing.

[0003] The prior art patent document with application publication number CN112458545B provides a pretreatment device for poultry slaughter waste; the device addresses the problem that the feathers after poultry processing cannot be recycled, by cleaning the feathers with a nozzle, using a connecting rod to drive a screen to separate the feathers and wastewater, and also using a solenoid valve to connect the screen to separate the feathers.

[0004] However, the device only separates feathers from wastewater and washing water, without removing moisture from the surface of the feathers; the device simply rinses the feathers with a spray head, resulting in weak cleaning power; at the same time, the device only pays attention to feathers in poultry slaughter waste, while ignoring other recyclable materials such as internal organs, claws, beaks, and bone fragments, which has great limitations. Therefore, a pretreatment device for poultry slaughter waste is proposed. Summary of the Invention

[0005] The purpose of this invention is to solve the problems in the background art by providing a waste pretreatment device for poultry slaughter.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A waste pretreatment device for poultry slaughter includes a main body. A cylindrical washing drum is fixedly mounted on the top of the main body via a bracket. A first motor is fixedly mounted on the outer wall of the main body. A first motor output shaft is fixedly mounted on the output end of the first motor. The end of the first motor output shaft away from the first motor passes through the washing drum and is fixedly mounted on a filter cylinder. A connecting disc is slidably mounted on the inner wall of the filter cylinder. An open feeding drum is provided on one side of the connecting disc and is slidably connected to the filter cylinder. A sealing disc is fixedly mounted on the end of the feeding drum away from the connecting disc. The outer diameter of the sealing disc is the same as the inner diameter of the washing drum. A telescopic cylinder is fixedly mounted on the top of the main body. An auxiliary shaft is rotatably mounted on the telescopic end of the telescopic cylinder. The end of the auxiliary shaft away from the telescopic cylinder is fixedly connected to the sealing disc.

[0007] In the above-mentioned waste pretreatment device for poultry slaughter, a number of plug-in protrusions are fixedly installed at one end of the feeding roller near the connecting disc, and a connecting spring is fixedly installed at the other end of the plug-in protrusion away from the feeding roller. A number of evenly distributed plug-in slots are opened on one side of the connecting disc near the feeding roller, and plug-in blocks are slidably installed in the plug-in slots. A number of plug-in blocks correspond one-to-one with a number of connecting springs and are fixedly connected.

[0008] In the above-mentioned waste pretreatment device for poultry slaughter, the feeding roller is located near the telescopic cylinder. A second motor is fixedly installed on the lower side of the telescopic cylinder on the main body. One end of the output shaft of the second motor is fixedly connected to the crankshaft. A push rod is hinged on the crank. A vibrating plate is connected to the push rod on the lower side of the sealing disc near the telescopic cylinder. The push rod is installed in the limiting groove.

[0009] In the above-mentioned waste pretreatment device for poultry slaughter, a feeding hopper is fixedly connected to the main body on the lower side of the feeding drum, and a vibrating plate is placed on the support frame on the lower side of the feeding hopper. A connecting film is fixedly connected to the vibrating plate, and the connecting film fixes the vibrating screen and the vibrating plate.

[0010] In the aforementioned waste pretreatment device for poultry slaughter, a first bevel gear is fixedly installed on the output shaft of a first motor and meshes with a second bevel gear on a transmission shaft perpendicular to the output shaft of the first motor. The transmission shaft is installed on a clamping frame, and a drive disc is fixedly installed on the other side of the transmission shaft. The drive disc is hinged to the first connecting rod and the second connecting rod in sequence. A movable block is hinged to the other side of the second connecting rod and is placed on the lower side of the guide rail.

[0011] In the above-mentioned waste pretreatment device for poultry slaughter, a third motor is fixedly installed on the lower side of the main body. A first pulley is fixedly installed on one end of the output shaft of the third motor. Above the output shaft of the third motor, there is a transmission shaft that passes through and is fixed on the outer wall of the main body and is parallel to the output shaft of the third motor. The first pulley is connected to a second pulley fixed on the transmission shaft through a first transmission belt. A cam is fixedly installed on the other side of the transmission shaft and is attached to the vibrating plate.

[0012] In the above-mentioned waste pretreatment device for poultry slaughter, a top cover is fixedly installed on one side of the vibrating plate on the inner wall of the main body. An inlet is opened on the side of the top cover near the vibrating plate. A first collection box is located below the vibrating plate, and a second collection box is located below the inlet. The first and second collection boxes are installed on the guide rail at the bottom of the main body.

[0013] In the aforementioned waste pretreatment device for poultry slaughter, a first lead screw is fixedly connected to the output shaft of a third motor. A threaded hole is opened at the bottom of a first collection box to engage with the first lead screw. A threaded hole parallel to the first collection box is opened at the bottom of a second collection box, and the threaded hole engages with the second lead screw. A third pulley is fixedly connected to the output shaft near the first lead screw. A fourth pulley parallel to the third pulley is fixedly connected to the second lead screw. A second transmission belt is installed on the third pulley to connect to the fourth pulley. A spring shaft is fixedly connected to the output shaft on the side of the third pulley near the third motor. A one-way clutch is fixedly installed on the output shaft between the spring shaft and the first pulley.

[0014] Compared with existing technologies, the advantages of this invention are: This device is equipped with a first cylinder that drives the feeding roller to move. Through the cooperation between the feeding roller, the connecting disc and the filter roller, and the fixed connection between the filter roller and the output shaft of the first motor, the telescopic cylinder pushes the feeding roller and the filter roller to cooperate. The first motor drives the cleaning roller, the filter roller and the feeding roller to rotate to clean the waste from poultry slaughter. Compared with the original device, this device can better clean the waste from poultry slaughter by centrifugal force, remove surface water and deeply remove dirt. This device is equipped with a first pulley that drives a second pulley to move. The cam, which is coaxial with the second pulley, rotates, causing the vibrating disc to vibrate and shake the waste into the first collection box, thereby collecting recyclable materials such as claws, beaks, and bone fragments. This device is equipped with a transmission shaft perpendicular to the output shaft of the first motor. The drive disc on the transmission shaft works with the first connecting rod, the second connecting rod, and the movable block. The bevel gear on the output shaft of the first motor drives the bevel gear on the transmission shaft, thereby driving the rotation of the drive disc, which in turn drives the first connecting rod and the second connecting rod to move. This causes the movable block to push the screened waste into the feed inlet of the second collection box. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the main body of the present invention; Figure 2 This is a schematic diagram of the internal three-dimensional structure of the main body of the present invention; Figure 3 This is a schematic diagram of the internal planar cross-sectional structure of the main body of the present invention; Figure 4This is a schematic diagram of the cross-sectional structure for the classification and collection of the present invention; Figure 5 This is a three-dimensional structural diagram of the pulley assembly structure of the present invention; Figure 6 This is a three-dimensional structural diagram of the cleaning device of the present invention; Figure 7 This is a three-dimensional structural diagram of the vibratory feeding device of the present invention; Figure 8 This is a schematic cross-sectional view of the material feeding roller and connecting disc connection device of the present invention. Figure 9 This is a schematic diagram of the full planar cross-sectional structure of the screening device of the present invention; Figure 10 This is a schematic diagram of the planar structure of the third motor clutch device of the present invention.

[0016] In the diagram: 1. Main body; 2. Cleaning drum; 3. First motor; 4. First motor output shaft; 5. Filter drum; 6. Connecting disc; 7. Feeding drum; 8. Sealing disc; 9. Telescopic cylinder; 10. Insertion protrusion; 11. Connecting spring; 12. Insertion block; 13. Second motor; 14. Crank; 15. Push rod; 16. Vibrating plate; 17. Feed hopper; 18. Vibrating plate; 19. Connecting membrane; 20. Vibrating screen; 21. First bevel gear; 22. Second bevel gear; 23. Clamping frame; 24. Drive disc; 25. First connecting rod; 26. Second connecting rod; 27. Movable block; 28. Third motor; 29. ​​First pulley; 30. First transmission belt; 31. Second pulley; 32. Cam; 33. Top cover; 34. First collection box; 35. Second collection box; 36. First lead screw; 37. Second lead screw; 38. Third pulley; 39. Fourth pulley; 40. Second transmission belt; 41. Spring shaft; 42. One-way clutch; 100. Auxiliary shaft. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0018] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0019] Reference Figures 1-10A waste pretreatment device for poultry slaughter includes a main body 1. A cylindrical washing drum 2 is fixedly mounted on the top of the main body 1 via a bracket. A first motor 3 is fixedly mounted on the outer wall of the main body 1. A first motor output shaft 4 is fixedly mounted on the output end of the first motor 3. The end of the first motor output shaft 4 away from the first motor 3 passes through the washing drum 2 and is fixedly mounted on a filter drum 5. A connecting disc 6 is slidably mounted on the inner wall of the filter drum 5. An open feeding drum 7 is provided on one side of the connecting disc 6 and is slidably connected to the filter drum 5. A sealing disc 8 is fixedly mounted on the end of the feeding drum 7 away from the connecting disc 6. The outer diameter of the sealing disc 8 is the same as the inner diameter of the washing drum 2. A telescopic cylinder 9 is fixedly mounted on the top of the main body 1. An auxiliary shaft 100 is rotatably mounted on the telescopic end of the telescopic cylinder 9. The end of the auxiliary shaft 100 away from the telescopic cylinder 9 is fixedly connected to the sealing disc 8. The telescopic cylinder 9 pushes the sealing disc 8 and the feeding drum 7 on the movable rod into the filter drum 5, so that the sealing disc 8 and the washing drum 2 are tightly fitted.

[0020] A number of insertion protrusions 10 are fixedly installed at one end of the feeding roller 7 near the connecting disc 6. A connecting spring 11 is fixedly installed at the other end of the insertion protrusions 10 away from the feeding roller 7. A number of evenly distributed insertion slots are opened on one side of the connecting disc 6 near the feeding roller 7. Insertion blocks 12 are slidably installed in the insertion slots. A number of insertion blocks 12 correspond one-to-one with a number of connecting springs 11 and are fixedly connected. The protrusions on the other side of the connecting disc 6 and the recesses on the inner wall of the filter roller 5 can cooperate when the feeding roller 7 enters the filter roller 5.

[0021] The material feeding roller 7 is located near the telescopic cylinder 9. The lower side of the telescopic cylinder 9 is fixedly mounted on the main body 1 with a second motor 13. One end of the output shaft of the second motor 13 is fixedly connected to a crank 14. A push rod 15 is hinged on the crank 14. The lower side of the sealing disc 8 near the telescopic cylinder 9 has a vibrating disc 16 connected to the push rod 15. The push rod 15 is installed in the limiting groove. After cleaning, the push rod 15 pulls the material feeding roller 7 and the sealing disc 8 out to the top of the hopper 17. The vibrating disc 16 vibrates the sealing disc 8 to shake out the waste material adhering to the inner wall of the material feeding roller 7.

[0022] The material feeding roller 7 has a feeding hopper 17 fixedly connected to the main body 1 on its lower side. The feeding hopper 17 has a vibrating plate 18 placed on the support frame on its lower side. A connecting film 19 is fixedly connected to the vibrating plate 18. The connecting film 19 is fixedly connected to the vibrating screen 20 and the vibrating plate 18. The cleaned waste falls onto the vibrating screen 20 and is screened into the first collection box 34.

[0023] A first bevel gear 21 is fixedly mounted on the output shaft 4 of the first motor and meshes with a second bevel gear 22 on a transmission shaft perpendicular to the output shaft 4 of the first motor. The transmission shaft is mounted on a clamping frame 23. A drive disk 24 is fixedly mounted on the other side of the transmission shaft. The drive disk 24 is hinged to the first connecting rod 25 and the second connecting rod 26 in sequence. A movable block 27 is hinged to the other side of the second connecting rod 26. The movable block 27 is placed under the guide rail. The drive disk 24, the first connecting rod 25, the second connecting rod 26 and the movable block 27 under the guide rail constitute a crank-slider mechanism, which drives the movable block 27 to push the waste material.

[0024] A third motor 28 is fixedly installed on the lower outer side of the main body 1. A first pulley 29 is fixedly installed on one end of the output shaft of the third motor 28. Above the output shaft of the third motor 28, there is a transmission shaft that passes through and is fixed on the outer wall of the main body 1 and is parallel to the output shaft of the third motor 28. The first pulley 29 is connected to a second pulley 31 fixed on the transmission shaft through a first transmission belt 30. A cam 32 is fixedly installed on the other side of the transmission shaft and is attached to the vibrating plate 18. The rotation of the cam 32 drives the vibrating plate 18 to vibrate. The vibrating plate 18 drives the connecting film 19 and the vibrating screen 20 to vibrate, thereby screening the waste.

[0025] The vibrating plate 18 has a top cover 33 fixedly installed on the inner wall of the main body 1. The top cover 33 has a feed inlet on the side near the vibrating plate 18. Below the vibrating plate 18 is the first collection box 34, and below the feed inlet is the second collection box 35. The first collection box 34 and the second collection box 35 are installed on the guide rail at the bottom of the main body 1. The waste screened by the vibrating screen 20 falls into the first collection box 34, and the waste pushed by the movable block 27 falls into the second collection box 35.

[0026] A first lead screw 36 is fixedly connected to the output shaft of the third motor 28. A threaded hole is opened at the bottom of the first collection box 34 to engage with the first lead screw 36. A threaded hole parallel to the first collection box 34 is opened at the bottom of the second collection box 35 to engage with the second lead screw 37. A third pulley 38 is fixedly connected to the output shaft near the first lead screw 36. A fourth pulley 39 parallel to the third pulley 38 is fixedly connected to the second lead screw 37. A second transmission belt 40 is installed on the third pulley 38 to connect with the fourth pulley 39. A spring shaft 41 is fixedly connected to the output shaft of the third pulley 38 near the third motor 28. A one-way clutch 42 is fixedly installed on the output shaft between the spring shaft 41 and the first pulley 29. When the third motor 28 rotates forward, it drives the first collection box 34 and the second collection box 35 to move away from the third motor 28 on the bottom guide rail of the main body 1. When the third motor 28 rotates in reverse, it only makes the first pulley 29 rotate.

[0027] The working principle and usage of this invention are explained in detail below: In use, poultry slaughter waste is placed inside the feeding roller 7. The moving rod of the telescopic cylinder 9 pushes the feeding roller 7 and its connected sealing disc 8 into the filter roller 5, so that the sealing disc 8 is tightly attached to the cleaning roller 2. The filter roller 5 is located inside the cleaning roller 2 and is fixedly connected to the output shaft 4 of the first motor. The cleaning roller 2 is fixedly connected to the main body 1. Since the feeding roller 7 is connected to the connecting disc 6 through the insertion protrusion 10, the connecting spring 11 and the insertion block 12, and the protrusion on the other side of the connecting disc 6 and the concave inner wall of the filter roller 5 can cooperate when the feeding roller 7 enters the filter roller 5, and since the auxiliary shaft 100 is rotatably installed at the telescopic end of the telescopic cylinder 9, the feeding roller 7 and the filter roller 5 will rotate simultaneously when the first motor 3 is running. At the same time, the filtered wastewater on the filter roller 5 flows out through the drain outlet below the cleaning roller 2 through the hole on the filter roller 5. Through the action of centrifugal force, the dirt is deeply removed and the water is drained, thereby achieving the cleaning and drying effect of poultry slaughter waste.

[0028] After cleaning, the telescopic cylinder 9 pulls the downward-facing feeding roller 7 out of the filter roller 5 and onto the hopper 17. The cleaned waste will fall into the hopper 17. At the same time, the second motor 13 rotates, driving the crank 14 on the output shaft to rotate, which in turn drives the push rod 15 to reciprocate in the limit groove. This causes the vibrating plate 16 to continuously collide with the sealing disc 8 connected to the feeding roller 7, causing the feathers and other waste adhering to the inner wall of the feeding roller 7 to fall into the hopper 17.

[0029] Waste falling into hopper 17 will land on vibrating screen 20. The third motor 28 drives the first pulley 29 on the output shaft near the third motor 28 to rotate, driving the first transmission belt 30. The first transmission belt 30 drives the second pulley 31, thereby driving the coaxial cam 32 to rotate. The cam 32 closely adheres to the vibrating plate 18, and the reciprocating motion causes the vibrating plate 18 to vibrate, thereby causing the connecting membrane 19 and the vibrating screen 20 on the connecting membrane 19 to vibrate. This causes some residual moisture to slide into the softer connecting membrane 19. At the same time, the vibrating screen 20 sieves smaller bone fragments, claws, beaks and feathers into the first collection box 34 below, for the first sorting and collection of poultry slaughter waste.

[0030] The first bevel gear 21, which is fixedly installed on the output shaft 4 of the first motor, drives the meshing connection of the second bevel gear 22 and the drive disk 24, which is coaxial with the second bevel gear 22. The drive disk 24, the first connecting rod 25, the second connecting rod 26, and the movable block 27 in the track form a crank-slider mechanism. The drive block 27 pushes the poultry slaughter waste, i.e. the remaining internal organs, that has been screened on the vibrating plate 18 to the discharge port opened on the upper cover 33, and drops into the second collection box 35 for the second sorting and collection of poultry slaughter waste.

[0031] When it is necessary to remove the sorted waste from the first collection box 34 and the second collection box 35, the third motor 28 is rotated to drive the first lead screw 36 and the third pulley 38, which in turn drive the fourth pulley 39 and the second lead screw 37 through the second transmission belt 40, so that the first collection box 34 and the second collection box 35 move away from the third motor 28 along the bottom track of the main body 1.

[0032] Because of the presence of a one-way clutch 42 and a spring shaft 41 between the first pulley 29 and the third pulley 38, when it is necessary to remove waste from the first collection box 34 and the second collection box 35, the third motor 28 is rotated forward and will not drive the one-way clutch 42 and the spring shaft 41. When it is necessary to vibrate the vibrating plate 18, the third motor 28 is rotated in reverse and the one-way clutch 42 and the spring shaft 41 are driven to move only the first pulley 29, thereby moving the cam 32, thus reducing energy waste.

[0033] To further clarify, the aforementioned fixed connection should be interpreted broadly unless otherwise explicitly specified and limited. For example, it may be welding, gluing, or integral molding, or other conventional methods well known to those skilled in the art.

[0034] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A waste pretreatment device for poultry slaughter, comprising a main body, characterized in that: A cylindrical cleaning drum is fixedly mounted on the top of the main body via a bracket. A first motor is fixedly mounted on the outer wall of the main body. A first motor output shaft is fixedly mounted on the output end of the first motor. The end of the first motor output shaft away from the first motor passes through the cleaning drum and is fixedly mounted on a filter cylinder. A connecting disc is slidably mounted on the inner wall of the filter drum. An open feeding drum is provided on one side of the connecting disc and is slidably connected to the filter drum. A sealing disc is fixedly mounted on the end of the feeding drum away from the connecting disc. The outer diameter of the sealing disc is the same as the inner diameter of the cleaning drum. A telescopic cylinder is fixedly mounted on the top of the main body. An auxiliary shaft is rotatably mounted on the telescopic end of the telescopic cylinder. The end of the auxiliary shaft away from the telescopic cylinder is fixedly connected to the sealing disc.

2. The waste pretreatment device for poultry slaughtering according to claim 1, characterized in that: A number of insertion protrusions are fixedly installed at one end of the feeding roller near the connecting disc, and a connecting spring is fixedly installed at the other end of the insertion protrusion away from the feeding roller. A number of evenly distributed insertion slots are opened on one side of the connecting disc near the feeding roller, and insertion blocks are slidably installed in the insertion slots. A number of insertion blocks correspond one-to-one with a number of connecting springs and are fixedly connected.

3. A waste pretreatment device for poultry slaughtering according to claim 2, characterized in that: The material feeding roller is located near the telescopic cylinder. A second motor is fixedly mounted on the lower side of the telescopic cylinder on the main body. One end of the output shaft of the second motor is fixedly connected to the crankshaft. A push rod is hinged on the crank. A vibrating plate is located on the lower side of the sealing disc near the telescopic cylinder and is connected to the push rod. The push rod is installed in the limiting groove.

4. A waste pretreatment device for poultry slaughtering according to claim 3, characterized in that: The material feeding roller has a feeding hopper fixedly connected to the main body on its lower side. A vibrating plate is placed on the support frame on the lower side of the feeding hopper. A connecting film is fixedly connected to the vibrating plate, and the connecting film fixes the vibrating screen and the vibrating plate.

5. A waste pretreatment device for poultry slaughtering according to claim 4, characterized in that: A first bevel gear is fixedly mounted on the output shaft of the first motor and meshes with a second bevel gear on a transmission shaft perpendicular to the output shaft of the first motor. The transmission shaft is mounted on a clamping frame, and a drive disk is fixedly mounted on the other side of the transmission shaft. The drive disk is hinged to the first connecting rod and the second connecting rod in sequence. A movable block is hinged to the other side of the second connecting rod and is placed on the lower side of the guide rail.

6. A waste pretreatment device for poultry slaughtering according to claim 5, characterized in that: A third motor is fixedly installed on the lower side of the main body. A first pulley is fixedly installed on one end of the output shaft of the third motor. Above the output shaft of the third motor, there is a transmission shaft that passes through and is fixed on the outer wall of the main body and is parallel to the output shaft of the third motor. The first pulley is connected to a second pulley fixed on the transmission shaft through a first transmission belt. A cam is fixedly installed on the other side of the transmission shaft and fits against the vibration plate.

7. A waste pretreatment device for poultry slaughtering according to claim 6, characterized in that: The vibrating plate has a top cover fixedly installed on the inner wall of the main body. The top cover has a feed inlet on the side near the vibrating plate. Below the vibrating plate is a first collection box, and below the feed inlet is a second collection box. The first collection box and the second collection box are installed on the guide rail at the bottom of the main body.

8. A waste pretreatment device for poultry slaughtering according to claim 7, characterized in that: A first lead screw is fixedly connected to the output shaft of the third motor. A threaded hole is opened at the bottom of the first collection box to engage with the first lead screw. A threaded hole parallel to the first collection box is opened at the bottom of the second collection box and engages with the second lead screw. A third pulley is fixedly connected to the output shaft near the first lead screw. A fourth pulley parallel to the third pulley is fixedly connected to the second lead screw. A second transmission belt is installed on the third pulley to connect to the fourth pulley. A spring shaft is fixedly connected to the output shaft on the side of the third pulley near the third motor. A one-way clutch is fixedly installed on the output shaft between the spring shaft and the first pulley.

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