Unstacking and Stacking Machine for Industrialized Sericulture

Abstract

The present invention discloses a palletizing and depalletizing machine for factory-scale sericulture, comprising: a frame and a chain conveying mechanism. A driving mechanism and a transmission mechanism are provided on the frame. A pawl mechanism is provided on the transmission mechanism. The pawl mechanism includes a mounting base, a pawl block, a cam block and a limit pin. The mounting base is provided on the transmission mechanism. The cam block and the pawl block are coaxially rotatably connected to the mounting base. The limit pin is provided on the mounting base. The limit pin abuts against the bottom of the pawl block to limit the downward rotation of the pawl block. An L-shaped opening groove is provided on the side surface of the pawl block. The cam block is located in the L-shaped opening groove. The cam block limits the rotation amplitude of the pawl block. A photoelectric switch and a blocking component are provided on the chain conveying mechanism. The blocking component is used to block the advancement of the silkworm frame. The structure of the present invention is novel, which can realize two processes of palletizing and depalletizing the silkworm frame, enriches the use functions, reduces the cost, has a high degree of automation, reduces the manual operation intensity, is labor-saving and convenient, does not require shutdown operation, can operate continuously, and has high work efficiency.

Description

Technical Field

[0001] The present invention belongs to the technical field of sericulture equipment, and particularly relates to a depalletizing and palletizing machine for industrialized sericulture. Background Art

[0002] Silkworms are the main raw material source of silk and play an important role in human economic life and cultural history. At present, the industrialized breeding method is adopted to replace the manual breeding method, which reduces the mechanization difficulty and manual operation intensity of sericulture and improves the survival rate of silkworms.

[0003] The existing breeding method has changed from single-plane breeding to three-dimensional breeding. As a breeding container, the silkworm frame plays a crucial role. In each link, it is necessary to disassemble or stack the silkworm frame stacks. When using manual depalletizing and palletizing, the work efficiency is low, the labor intensity is high, and there is also a risk of injury. When using a six-axis robot for depalletizing and palletizing, although the work efficiency is improved and the operation risk is reduced, the cost will increase significantly. Summary of the Invention

[0004] The purpose of the present invention is to solve the above-mentioned technical problems existing in the prior art, and provide a depalletizing and palletizing machine for industrialized sericulture, which has a novel structure, can realize two processes of palletizing and depalletizing silkworm frames, enriches the use functions, reduces the cost, has a high degree of automation, reduces the manual operation intensity, is labor-saving and convenient, does not require shutdown operation, can perform continuous operation, and has high work efficiency.

[0005] In order to solve the above technical problems, the present invention adopts the following technical scheme:

[0006] A depalletizing and palletizing machine for industrialized sericulture, comprising: a frame and a chain conveying mechanism, characterized in that: a driving mechanism and a transmission mechanism are provided on the frame, and the driving mechanism drives the transmission mechanism to perform vertical reciprocating motion on the frame; a pawl mechanism is provided on the transmission mechanism, and the pawl mechanism includes a mounting base, a pawl block, a cam block and a limit pin. The mounting base is provided on the transmission mechanism, the cam block and the pawl block are coaxially rotatably connected to the mounting base, the limit pin is provided on the mounting base, and the limit pin abuts against the bottom of the pawl block to limit the downward rotation of the pawl block. An L-shaped opening groove is provided on the side surface of the pawl block, and the cam block is located in the L-shaped opening groove, and the cam block limits the upward rotation amplitude of the pawl block; a photoelectric switch and a blocking assembly are provided on the chain conveying mechanism, and the blocking assembly is used to block the forward movement of the silkworm frame. This depalletizing and palletizing machine has a novel structure, can realize two processes of palletizing and depalletizing silkworm frames, enriches the use functions, reduces the cost, has a high degree of automation, reduces the manual operation intensity, is labor-saving and convenient, does not require shutdown operation, can perform continuous operation, and has high work efficiency.

[0007] Furthermore, a fixed baffle is provided on the rack. The driving mechanism drives the transmission mechanism to lift and lower. The tail end of the cam block abuts against the end face of the fixed baffle. By changing the designed height of the fixed baffle, the height at which the claw block returns to the horizontal state is changed, thereby enabling the palletizing or depalletizing process of the silkworm frames by the palletizing and depalletizing machine. When the designed height of the fixed baffle is small, the contact surface between the tail end of the cam block and the fixed baffle is limited. During the upward movement of the sliding plate, the tail end of the cam block quickly disengages from the fixed baffle. Under the action of gravity, the tail end of the cam block rotates downward to return to the horizontal state, and the front part of the claw block rotates downward to return to the horizontal state. At the same time, the cam block presses down the rear part of the claw block, accelerating the return of the front part of the claw block to its original position. At this time, the claw block contacts the bottom surface of the upper edge of the lowermost silkworm frame, lifting the silkworm frame stack and performing the process of palletizing the silkworm frames one by one. When the designed height of the fixed baffle is large, the contact surface between the tail end of the cam block and the fixed baffle is large. During the upward movement of the sliding plate, the tail end of the cam block always abuts against the end face of the fixed baffle. The cam block restricts the downward rotation and return of the claw block until the upturned claw block jumps over the upper edge of the lowermost silkworm frame, and then the tail end of the cam block disengages from the fixed baffle. Then the claw block rotates downward to return to its original position. At this time, the claw block contacts the bottom surface of the upper edge of the second-lowest silkworm frame, lifting the silkworm frame stack thereon and realizing the separation of the lowermost silkworm frame, performing the process of depalletizing the silkworm frames one by one. Two processes can be carried out, enriching the usage functions and reducing the cost.

[0008] Furthermore, an installation block is provided on the side of the installation base. An elastic limit component is connected between the installation block and the cam block. The elastic limit component restricts the rotation amplitude of the cam block. When the cam block disengages from the fixed baffle, the elastic limit component generates a rebound force to pull back the cam block, making it return to the initial state, and then driving the claw block to return to the horizontal state through the cam block.

[0009] Furthermore, the elastic limit component includes an end pin and a torsion spring. The torsion spring is arranged on the end pin. The end pin passes through the installation block and is connected to the cam block. The installation block is provided with a limit through hole and a strip-shaped through groove. One end of the torsion spring passes through the limit through hole, and the other end of the torsion spring passes through the strip-shaped through groove. During the rotation of the cam block, the end pin is driven to rotate synchronously, and the torsion spring rotates with the end pin. When one end of the torsion spring abuts against the upper end face of the strip-shaped through groove, and the other end of the torsion spring is restricted within the limit through hole, the torsion spring is twisted, generating a rebound force to prompt the cam block to quickly return to the initial state. The cam block presses down the rear part of the claw block, making the claw block return to the horizontal state. Without external force, the claw block is not easily rotated upward freely.

[0010] Furthermore, a counterweight block is threadedly connected to the tail end of the cam block, which is convenient for disassembly and assembly and can be used immediately after installation. The driving mechanism drives the transmission mechanism to lift and lower. The counterweight block abuts against the end face of the fixed baffle. The counterweight block increases the weight of the tail end of the cam block. After the counterweight block disengages from the fixed baffle, under the action of gravity, the tail end of the cam block is more likely to rotate downward to return to its original position, thereby driving the claw block to rotate downward to return to its original position, ensuring the continuous progress of the palletizing and depalletizing process.

[0011] Furthermore, the driving mechanism includes a servo motor and a driving cam, the output shaft of the servo motor is connected to the driving cam, the transmission mechanism includes a slide plate and a transmission shaft, the transmission shaft rotatably connects the slide plate and the driving cam, the slide plate is slidably connected to the frame, and the mounting base is arranged on the slide plate. The servo motor drives the driving cam to rotate, and the driving cam drives the slide plate to perform vertical reciprocating motion on the frame through the transmission shaft, and the claw mechanism performs vertical reciprocating motion with the slide plate, thereby lifting and lowering the silkworm frame.

[0012] Furthermore, a guide rail is provided on the frame, and the slide plate slides vertically on the guide rail through a slider, so that the slide plate can slide vertically in a directional manner without deviation, and has high stability, preventing the silkworm frame from shaking during the process of the claw block lifting the silkworm frame, and the operation is reliable.

[0013] Furthermore, frame plates are symmetrically distributed on the frame plates, and protective rods are arranged on the frame plates. The protective rods are distributed on both sides of the silkworm frame pile, and the vertical blocking range is large, which prevents the silkworm frames from tipping over laterally and improves the stability of the silkworm frame stacking.

[0014] Furthermore, a stroke cylinder is provided on the frame, and the stroke cylinder is connected to the frame plate through a fixed plate. The fixed plate reinforces the frame plate and improves the structural stability of the frame plate; the stroke cylinder drives the frame plate to move in a straight line to change the distance between the two frame plates, and blocks the silkworm frames through protective rods to prevent the silkworm frame stack from shaking, thereby improving the stacking stability. It can be applied to silkworm frames of different sizes, thereby improving applicability.

[0015] Furthermore, an L-shaped guard plate is provided on the frame plate, which adapts to the corner of the silkworm frame, increases the contact area, prevents the silkworm frame from tipping toward the inlet direction of the chain conveying mechanism, and improves the stability of the silkworm frame stacking.

[0016] Furthermore, a cross bar is provided on the protective rod, which passes through the frame plate. The cross bar clamps the frame plate by connecting two nuts so that the protective rod can be detachably connected to the frame plate, so that the protective rod can be detached and used whenever installed, and can be replaced when damaged. It is flexible and convenient, and the distance between the two relatively distributed protective rods can be changed by changing the length of the cross bar passing through the frame plate, thereby achieving fine adjustment and more reliable blocking, thereby solving the defect of limited movement stroke of the stroke cylinder. The system can be applied to silkworm frames of different sizes and has strong applicability.

[0017] Furthermore, a baffle is provided on the frame, which is located in the outlet direction of the chain conveying mechanism to prevent the silkworm frame from tipping over toward the inlet direction of the chain conveying mechanism. It cooperates with the protective bars on both sides to prevent the silkworm frame from tipping over laterally, providing more comprehensive blocking and improving the stability of the silkworm frame stacking.

[0018] Furthermore, the blocking component includes a driving cylinder and a baffle plate. The baffle plate is arranged on the driving cylinder. The driving cylinder drives the baffle plate to perform lifting movements. The baffle plate rises to block the silkworm frames from moving forward, and the silkworm frames are in place one by one, ensuring the smooth progress of the stacking process; the baffle plate drops and no longer blocks the silkworm frames. The removed silkworm frames are transported to the next process through a chain conveying mechanism; a crossbeam is provided on the chain conveying mechanism, and the driving cylinder is arranged on the crossbeam, ensuring the installation stability of the driving cylinder.

[0019] Furthermore, protective plates are symmetrically distributed on the chain conveying mechanism to enclose the lowest layers of silkworm frames to prevent them from sliding sideways from the chain conveying mechanism, thereby ensuring the reliability of directional conveying.

[0020] Furthermore, a mounting bracket is provided on the frame, and a limit switch is provided on the mounting bracket. The limit switch serves the role of over-height detection. During the stacking process, after the top silkworm frame touches the limit switch, the limit switch gives an over-height signal for warning, and the silkworm frame reaches the maximum stacking height, thereby preventing the silkworm frames from being stacked too high and exceeding the workload of the equipment.

[0021] The present invention has the following beneficial effects due to the adoption of the above technical solution:

[0022] In the initial state, the claw block in a horizontal state holds the silkworm frame pile, and the external controller controls the servo motor to start, driving the driving cam to rotate. The driving cam drives the slide plate to do a first descending and then ascending movement through the transmission shaft. There are two cases according to the different design heights of the fixed baffle:

[0023] ① When the design height of the fixed baffle is small, the driving cylinder drives the baffle plate to extend upward, and the chain conveying mechanism conveys the silkworm frame to the stacking position. The baffle plate blocks the silkworm frame from moving forward. The photoelectric switch senses the silkworm frame and sends an electrical signal to the external controller to stop the chain conveying mechanism from conveying. During the descent of the slide plate, the claw block drives the silkworm frame pile to fall on the new silkworm frame first, and then the claw block continues to descend and separates from the previously connected silkworm frame until the tail end of the cam block contacts the fixed baffle, and the cam block rotates. At this time, the range by which the front part of the claw block can rotate upward becomes larger. When the bottom surface of the front part of the claw block contacts the cross frame on the chain conveying mechanism, the front part of the claw block is forced to tilt upward, and the claw block is affected by the cam block. The upward tilt amplitude will not be too large due to the limitation of the sliding plate, which is conducive to rotation and reset; during the rising process of the slide plate, the contact area between the tail end of the cam block and the fixed baffle is limited, and the tail end of the cam block quickly separates from the fixed baffle, and under the action of gravity, the tail end of the cam block rotates downward to restore to a horizontal state, and the front part of the claw block rotates downward to restore to a horizontal state. At the same time, the cam block presses down the rear part of the claw block to accelerate the downward rotation of the front part of the claw block. The claw block restored to a horizontal state contacts the bottom surface of the upper edge of the lowest silkworm frame, and the claw blocks on both sides support it at the same time, thereby lifting the silkworm frame stack. The photoelectric switch no longer senses the silkworm frame, and the external controller controls the chain conveying mechanism to start, and conveys the next silkworm frame to the stacking position, and the silkworm frame stacking process is carried out one by one.

[0024] ② When the design height of the fixed baffle is large, the driving cylinder drives the baffle plate to retract downward and cannot play a blocking role. During the descent of the slide plate, the silkworm frame pile first falls on the chain conveying mechanism. The photoelectric switch senses the silkworm frame and sends an electrical signal to the external controller to stop the chain conveying mechanism. Then the claw block continues to descend and separates from the lowest silkworm frame until the tail end of the cam block hits the fixed baffle. The cam block rotates, and when the front bottom surface of the claw block hits the cross frame on the chain conveying mechanism, the front of the claw block is forced to tilt upward; during the ascent of the slide plate, the contact area between the tail end of the cam block and the fixed baffle is large, and the tail end of the cam block has been in conflict with the end face of the fixed baffle. The cam block restricts the claw block from rotating downward until the upturned claw block jumps over the upper edge of the lowest silkworm frame. The tail end is separated from the fixed baffle, and then the front part of the claw block rotates downward to recover to the horizontal state. At this time, the claw block contacts the bottom surface of the upper edge of the second-to-last layer of silkworm frames, and then lifts up the silkworm frame pile to achieve the separation of the lowest silkworm frames. After the claw block rises and resets, the external controller controls the chain conveying mechanism to start, and conveys the removed silkworm frames to the next process, and the silkworm frames are destackered one by one. By changing the design height of the fixed baffle, the height at which the claw block is restored to the horizontal state is changed, and then the destacker can perform two processes of stacking and destacking the silkworm frames, enriching the use function, eliminating the horizontal telescopic mechanism for driving the claw mechanism, reducing the cost, having a high degree of automation, reducing the intensity of manual operation, saving effort and being convenient, without stopping the operation, and can operate continuously with high work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described below in conjunction with the accompanying drawings:

[0026] Figure 1 It is a structural schematic diagram of the working state of the present invention;

[0027] Figure 2 It is a structural schematic diagram of the present invention;

[0028] Figure 3 It is a structural schematic diagram of the connection between the frame and the chain conveying mechanism in the present invention;

[0029] Figure 4 It is a structural schematic diagram of the connection between the chain conveying mechanism and the blocking assembly in the present invention;

[0030] Figure 5 for Figure 4 The main view;

[0031] Figure 6 It is a structural schematic diagram of the frame in the present invention;

[0032] Figure 7 It is a structural schematic diagram of the connection between the rack and the frame plate in the present invention;

[0033] Figure 8 is Figure 7 the front view of;

[0034] Figure 9 is the schematic structural view of the connection between the frame plate and the protective rod in the present invention;

[0035] Figure 10 is the schematic structural view of the connection between the driving mechanism and the transmission mechanism in the present invention;

[0036] Figure 11 is the schematic structural view of the connection among the transmission shaft, the sliding plate and the driving cam in the present invention;

[0037] Figure 12 is the schematic view of the positional relationship between the pawl mechanism and the fixed baffle in the present invention;

[0038] Figure 13 is the schematic structural view of the pawl mechanism in the present invention;

[0039] Figure 14 is the schematic structural view of the connection between the mounting base and the pawl block in the present invention;

[0040] Figure 15 is the schematic structural view of the connection between the mounting block and the end pin in the present invention.

[0041] In the figure: 1-frame; 2-chain conveying mechanism; 3-servo motor; 4-driving cam; 5-sliding plate; 6-transmission shaft; 7-guide rail; 8-slider; 9-mounting base; 10-pawl block; 11-cam block; 12-limit pin; 13-L-shaped opening groove; 14-fixed baffle; 15-horizontal frame; 16-counterweight block; 17-mounting block; 18-limit through hole; 19-strip-shaped through groove; 20-end pin; 21-torsion spring; 22-photoelectric switch; 23-driving cylinder; 24-blocking frame plate; 25-cross beam; 26-protective plate; 27-frame plate; 28-protective rod; 29-L-shaped guard plate; 30-stroke cylinder; 31-fixed plate; 32-blocking rod; 33-cross bar; 34-mounting bracket; 35-limit switch; 36-pawl mechanism. Detailed implementation manners

[0042] Such as Figures 1 to 15As shown in the figure, the invention relates to a disassembling and palletizing machine for factory-scale sericulture, which includes: a frame 1, a chain conveying mechanism 2 and an external controller. The chain conveying mechanism 2 is arranged on the frame 1, and the external controller is electrically connected to the chain conveying mechanism 2. A driving mechanism and a transmission mechanism are arranged on the frame 1. A pawl mechanism 36 is arranged on the transmission mechanism. The driving mechanism includes a servo motor 3 and a driving cam 4. The external controller is electrically connected to the servo motor 3, and the output shaft of the servo motor 3 is connected to the driving cam 4. The transmission mechanism includes a slide plate 5 and a transmission shaft 6. The transmission shaft 6 is rotatably connected to the slide plate 5 and the driving cam 4. The slide plate 5 is slidably connected to the frame 1. The servo motor 3 drives the driving cam 4 to rotate, and the driving cam 4 drives the slide plate 5 to perform vertical reciprocating motion on the frame 1 through the transmission shaft 6. The pawl mechanism 36 follows the slide plate 5 to perform vertical reciprocating motion, thereby performing the actions of lifting and lowering the silkworm frame. A guide rail 7 is arranged on the frame 1, and the slide plate 5 vertically slides on the guide rail 7 through a slider 8, realizing the directional vertical sliding of the slide plate 5 without deviation, with high stability, preventing the silkworm frame from shaking during the process of the pawl mechanism 36 lifting the silkworm frame, and the operation is reliable.

[0043] The pawl mechanism 36 includes a mounting base 9, a pawl block 10, a cam block 11 and a limit pin 12. The mounting base 9 is fixed on the slide plate 5. The cam block 11 and the pawl block 10 are coaxially rotatably connected to the mounting base 9. The limit pin 12 is threadedly connected to the mounting base 9. The limit pin 12 abuts against the bottom of the pawl block 10 to limit the downward rotation of the pawl block 10. The limit pin 12 can rotate up and down to change the contact height with the pawl block 10, so that the pawl block 10 will not deflect downward when it reaches the horizontal state. An L-shaped opening groove 13 is arranged on the side surface of the pawl block 10, and the cam block 11 is located in the L-shaped opening groove 13. The cam block 11 limits the upward rotation amplitude of the pawl block 10. A fixed baffle 14 is arranged on the frame 1. The driving mechanism drives the transmission mechanism to lift and lower, and the tail end of the cam block 11 abuts against the end surface of the fixed baffle 14.

[0044] In the initial state, the claw block 10 in the horizontal state supports the stack of silkworm frames. The external controller controls the servo motor 3 to start, driving the drive cam 4 to rotate. The drive cam 4 drives the slide plate 5 to perform a descending and then ascending movement through the transmission shaft 6. It can be divided into two cases according to the different designed heights of the fixed baffle 14: ① When the designed height of the fixed baffle 14 is small, the chain conveying mechanism 2 conveys a new silkworm frame in place. During the descending process of the slide plate 5, the claw block 10 drives the stack of silkworm frames to first fall on this new silkworm frame, and then the claw block 10 continues to descend and disengages from the previously connected silkworm frame until the end of the cam block 11 abuts against the fixed baffle 14 and the cam block 11 rotates. At this time, the upward rotation amplitude of the front part of the claw block 10 becomes larger. When the bottom surface of the front part of the claw block 10 abuts against the cross frame 15 on the chain conveying mechanism 2, it forces the front part of the claw block 10 to tilt upward. Restricted by the cam block 11, the upward tilt amplitude of the claw block 10 will not be too large, which is conducive to rotation and reset. During the ascending process of the slide plate 5, the contact surface between the end of the cam block 11 and the fixed baffle 14 is limited, and the end of the cam block 11 quickly disengages from the fixed baffle 14. Under the action of gravity, the end of the cam block 11 rotates downward to return to the horizontal state, the front part of the claw block 10 rotates downward to return to the horizontal state. At the same time, the cam block 11 presses down on the rear part of the claw block 10, accelerating the downward rotation and reset of the front part of the claw block 10. The claw block 10 in the horizontal state contacts the bottom surface of the upper edge of the lowermost silkworm frame, and the bilateral claw blocks 10 support simultaneously, thereby lifting the stack of silkworm frames. The chain conveying mechanism 2 conveys the next silkworm frame in, and the process of stacking silkworm frames one by one is carried out; ② When the designed height of the fixed baffle 14 is large, during the descending process of the slide plate 5, the stack of silkworm frames first falls on the chain conveying mechanism 2, and then the claw block 10 continues to descend and disengages from the lowermost silkworm frame until the end of the cam block 11 abuts against the fixed baffle 14 and the cam block 11 rotates. When the bottom surface of the front part of the claw block 10 abuts against the cross frame 15 on the chain conveying mechanism 2, it forces the front part of the claw block 10 to tilt upward. During the ascending process of the slide plate 5, the contact surface between the end of the cam block 11 and the fixed baffle 14 is large, and the end of the cam block 11 always abuts against the end face of the fixed baffle 14. The cam block 11 restricts the downward rotation and reset of the claw block 10 until the tilted claw block 10 jumps over the upper edge of the lowermost silkworm frame, and then the end of the cam block 11 disengages from the fixed baffle 14. Then the front part of the claw block 10 rotates downward to return to the horizontal state. At this time, the claw block 10 contacts the bottom surface of the upper edge of the second-lowest silkworm frame, thereby lifting the stack of silkworm frames and realizing the separation of the lowermost silkworm frame. The chain conveying mechanism 2 conveys the removed silkworm frame to the next process, and the process of unstacking silkworm frames one by one is carried out; By changing the designed height of the fixed baffle 14, the height at which the claw block 10 returns to the horizontal state is changed, thereby enabling the stacking and unstacking machine to perform two processes of stacking and unstacking silkworm frames, enriching the usage functions, eliminating the horizontal telescopic mechanism for driving the claw mechanism 36, reducing the cost, having a high degree of automation, reducing the manual operation intensity, being labor-saving and convenient, not requiring shutdown operation, being able to perform continuous operation, and having high working efficiency.

[0045] The tail end of the cam block 11 is threadedly connected with a counterweight block 16, which is convenient for disassembly and assembly and can be used immediately after installation; the counterweight block 16 increases the weight of the tail end of the cam block 11. After the counterweight block 16 detaches from the fixed baffle 14, under the action of gravity, the tail end of the cam block 11 is more likely to rotate downward to return to the horizontal state, and the cam block 11 presses the rear part of the claw block 10, so that the claw block 10 returns to the horizontal state, thus ensuring the continuous progress of the code removing process.

[0046] An installation block 17 is provided on the side of the installation base 9. The cam block 11 is located between the claw block 10 and the installation block 17. An elastic limit component is connected between the installation block 17 and the cam block 11. The elastic limit component includes an end pin 20 and a torsion spring 21. The torsion spring 21 is arranged on the end pin 20. The end pin 20 passes through the installation block 17 and is fixedly connected with the cam block 11. The installation block 17 is provided with a limit through hole 18 and a strip-shaped through groove 19. One end of the torsion spring 21 passes out of the limit through hole 18, and the other end of the torsion spring 21 passes out of the strip-shaped through groove 19. During the rotation of the cam block 11, the end pin 20 is driven to rotate synchronously, and the torsion spring 21 rotates with the end pin 20. When one end of the torsion spring 21 abuts against the upper end face of the strip-shaped through groove 19, and the other end of the torsion spring 21 is restricted in the limit through hole 18, the torsion spring 21 is twisted, generating a rebounding force to prompt the cam block 11 to quickly return to the initial state, and then driving the claw block 10 to rotate downward and return to its position. Without external force, the claw block 10 is not easily rotated upward freely.

[0047] An optoelectronic switch 22 and a blocking component are provided on the chain conveying mechanism 2. The blocking component includes a driving air cylinder 23 and a blocking frame plate 24. The blocking frame plate 24 is arranged on the driving air cylinder 23. The external controller is electrically connected to the optoelectronic switch 22 and the driving air cylinder 23. The driving air cylinder 23 drives the blocking frame plate 24 to move up and down. A cross beam 25 is provided on the chain conveying mechanism 2, and the driving air cylinder 23 is arranged on the cross beam 25, ensuring the installation stability of the driving air cylinder 23. During the palletizing process, the driving air cylinder 23 drives the blocking frame plate 24 to extend upward. The chain conveying mechanism 2 conveys the silkworm frame to the palletizing position, and the blocking frame plate 24 blocks the silkworm frame from moving forward. The optoelectronic switch 22 senses the silkworm frame and sends an electrical signal to the external controller to stop the chain conveying mechanism 2 from conveying. After the claw block 10 lifts the silkworm frame, the optoelectronic switch 22 no longer senses the silkworm frame, and the external controller controls the chain conveying mechanism 2 to start and convey the next silkworm frame to the palletizing position; during the depalletizing process, the driving air cylinder 23 drives the blocking frame plate 24 to retract downward and cannot play a blocking role. The claw block 10 stacks and places the silkworm frame. The optoelectronic switch 22 senses the silkworm frame and sends an electrical signal to the external controller to stop the chain conveying mechanism 2 from conveying. After the claw block 10 rises and resets, the external controller controls the chain conveying mechanism 2 to start and convey the removed silkworm frame to the next process. It has a high degree of automation, high working efficiency, reduces the manual operation intensity, and is labor-saving and convenient.

[0048] The chain conveyor mechanism 2 is symmetrically distributed with protective plates 26, which enclose the bottom several layers of silkworm frames to prevent them from slipping laterally from the chain conveyor mechanism 2, ensuring the reliability of directional transportation. The frame 1 is symmetrically distributed with frame plates 27. The frame plates 27 are provided with protective rods 28 and L-shaped protective plates 29. The frame 1 is provided with a stroke cylinder 30. The external controller is electrically connected to the stroke cylinder 30. The stroke cylinder 30 is connected to the frame plate 27 through a fixing plate 31. The fixing plate 31 strengthens the frame plate 27 and improves the structural stability of the frame plate 27. The stroke cylinder 30 drives the frame plate 27 to move linearly to change the distance between the two frame plates 27. The silkworm frames are blocked by the protective rods 28. The vertical blocking range is large, preventing the silkworm frames from tipping laterally and preventing the stacks of silkworm frames from shaking, improving the stability of silkworm frame stacking, being applicable to silkworm frames of different sizes, and improving the applicability.

[0049] The L-shaped protective plate 29 is located in the inlet direction of the chain conveyor mechanism 2, can adapt to the corners of the silkworm frames, increases the contact area, prevents the silkworm frames from tipping towards the inlet direction of the chain conveyor mechanism 2, and improves the stability of silkworm frame stacking. The frame 1 is provided with a stop rod 32. The stop rod 32 is located in the outlet direction of the chain conveyor mechanism 2, preventing the silkworm frames from tipping towards the inlet direction of the chain conveyor mechanism 2. The stop rod 32 and the L-shaped protective plate 29 cooperate with the frame plates 27 on both sides to block the front, back, left, and right sides of the silkworm frames, with good comprehensiveness, preventing the silkworm frames from shaking and tipping laterally, and improving the stability of silkworm frame stacking.

[0050] The protective rod 28 is provided with a cross bar 33. The cross bar 33 passes through the frame plate 27. The cross bar 33 clamps the frame plate 27 by connecting two nuts, enabling the detachable connection of the protective rod 28 to the frame plate 27. The protective rod 28 can be detached, installed and used as needed, and replaced when damaged, which is flexible and convenient. By changing the length of the cross bar 33 passing through the frame plate 27, the distance between the two relatively distributed protective rods 28 can be changed to achieve fine adjustment, making the blocking more reliable, thus solving the defect of the limited movement stroke of the stroke cylinder 30, being applicable to silkworm frames of different sizes, and having strong applicability.

[0051] The frame 1 is provided with a mounting bracket 34. The mounting bracket 34 is provided with a limit switch 35. The external controller is electrically connected to the limit switch 35. The limit switch 35 functions as an ultra-high detection. During the palletizing process, after the topmost silkworm frame touches the limit switch 35, the limit switch 35 gives an ultra-high signal for warning, indicating that the silkworm frames have reached the maximum stacking height, avoiding the silkworm frames being stacked too high and exceeding the working load of the equipment.

[0052] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements, or modifications made based on the present invention to solve substantially the same technical problems and achieve substantially the same technical effects are all covered by the protection scope of the present invention.

Claims

1. Unstacking and stacking machine for industrialized sericulture, comprising: Frame and chain conveying mechanism, characterized in that: protective plates are symmetrically distributed on the chain conveying mechanism; a driving mechanism and a transmission mechanism are provided on the frame, and the driving mechanism drives the transmission mechanism to perform vertical reciprocating motion on the frame; a pawl mechanism is provided on the transmission mechanism, and the pawl mechanism includes a mounting base, a pawl block, a cam block and a limit pin. The mounting base is arranged on the transmission mechanism, the cam block and the pawl block are coaxially rotatably connected to the mounting base, the limit pin is arranged on the mounting base, and the limit pin abuts against the bottom of the pawl block to limit the downward rotation of the pawl block. An L-shaped opening groove is provided on the side surface of the pawl block, the cam block is located in the L-shaped opening groove, and the cam block limits the upward rotation amplitude of the pawl block; a blocking assembly is provided on the chain conveying mechanism, and the blocking assembly is used to block the advancement of the silkworm frame; a fixed baffle is provided on the frame. The driving mechanism drives the transmission mechanism to move up and down, and a counterweight block is threadedly connected to the tail end of the cam block. The driving mechanism drives the transmission mechanism to move up and down, and the counterweight block abuts against the end face of the fixed baffle. By changing the design height of the fixed baffle, the height at which the pawl block is reset is changed, so as to realize the palletizing or depalletizing process of the silkworm frame by the palletizing and depalletizing machine.

2. The de-palletizing and palletizing machine for industrialized sericulture according to claim 1, wherein: An installation block is provided on the side surface of the mounting base, and an elastic limit component is connected between the installation block and the cam block, and the elastic limit component limits the rotation amplitude of the cam block.

3. The depalletizing and palletizing machine for factory sericulture according to claim 2, wherein: The elastic limit component includes an end pin and a torsion spring. The torsion spring is arranged on the end pin. The end pin passes through the installation block and is connected to the cam block. The installation block is provided with a limit through hole and a strip-shaped through groove. One end of the torsion spring passes out of the limit through hole, and the other end of the torsion spring passes out of the strip-shaped through groove.

4. The unstacking and stacking machine for factory-scale sericulture according to claim 1, wherein: The driving mechanism includes a servo motor and a driving cam. The output shaft of the servo motor is connected to the driving cam. The transmission mechanism includes a slide plate and a transmission shaft. The transmission shaft rotatably connects the slide plate and the driving cam. The slide plate is slidably connected to the frame. The mounting base is arranged on the slide plate. The servo motor drives the driving cam to rotate, and the driving cam drives the slide plate to perform vertical reciprocating motion on the frame through the transmission shaft.

5. The unstacking and stacking machine for factory-scale silkworm rearing according to claim 4, wherein: A guide rail is provided on the frame, and the slide plate vertically slides on the guide rail through a slider.

6. The de-palletizing and palletizing machine for industrialized sericulture according to claim 1, wherein: Frame plates are symmetrically distributed on the frame, and protective rods are provided on the frame plates.

7. The depalletizing and palletizing machine for industrialized sericulture according to claim 6, characterized in that: A stroke cylinder is provided on the frame. The stroke cylinder is connected to the frame plate through a fixing plate, and the stroke cylinder drives the frame plate to perform a linear motion to change the distance between the two frame plates.

8. The de-palletizing and palletizing machine for factory-scale silkworm rearing according to claim 7, wherein: An L-shaped guard plate is provided on the frame plate.

9. The de-palletizing and palletizing machine for factory-scale sericulture according to claim 6, wherein: A cross bar is provided on the protective rod. The cross bar passes through the frame plate, and the cross bar clamps the frame plate by connecting two nuts, so that the protective rod is detachably connected to the frame plate.

10. The depalletizer and palletizer for factory-scale silkworm rearing according to claim 1, characterized in that: A stop bar is provided on the frame, and the stop bar is located in the outlet direction of the chain conveying mechanism.

11. The depalletizer and palletizer for factory-scale sericulture according to claim 1, wherein: The blocking assembly includes a driving cylinder and a blocking frame plate. The blocking frame plate is arranged on the driving cylinder, and the driving cylinder drives the blocking frame plate to move up and down. A cross beam is arranged on the chain conveying mechanism, and the driving cylinder is arranged on the cross beam.

12. The depalletizer and palletizer for factory-scale silkworm rearing according to claim 1, wherein: An installation bracket is arranged on the frame, and a limit switch is arranged on the installation bracket.

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