Automatic feeding equipment for turnover boxes

Abstract

The utility model relates to a kind of turnover box automatic material supply equipment, including first rack, second rack, moving structure, clamping structure and correction structure, first rack is close to turnover box conveyor belt setting, moving structure setting and clamping structure setting are in first rack, clamping structure is connected with moving structure, moving structure drives clamping structure to move in X, Y, Z direction, second rack is close to first rack setting, correction structure is set on second rack, turnover box is placed on second rack after being grabbed by clamping structure, and correction structure corrects the alignment position of turnover box.This equipment uses material automatic material supply equipment, and the feeding is improved from original 5 boxes to 32 boxes, and the staff feeding frequency is reduced by 80%, which greatly reduces the material loading time loss;The equipment completes automatic feeding, effectively reduces the staff moving operation, improves the staff operation efficiency;The equipment height is consistent with the height of the next process, and the staff's redundant material taking action is reduced.

Description

Technical Field

[0001] This utility model relates to the field of material transfer technology, and in particular to an automatic feeding device for turnover boxes. Background Technology

[0002] The packaging section uses a collective feeding method with turnover boxes. Currently, the LCIA feeding method only feeds 4-5 boxes at a time. The small quantity of materials requires employees to move them multiple times, resulting in significant time loss for employees. Some lines require manual handling of pallet turnover boxes to the workstation, which involves many repetitive actions and wastes employee working hours. The height of the materials is inconsistent with the height of the worktable, requiring employees to bend over to pick up the materials, which increases employee fatigue. Summary of the Invention

[0003] This utility model provides an automatic feeding device for turnover boxes, which aims to solve the problem that existing material handling requires employees to feed materials multiple times, increasing labor costs and causing employee fatigue.

[0004] This utility model provides an automatic feeding device for turnover boxes, including a first frame, a second frame, a moving structure, a clamping structure, and a straightening structure. The first frame is located near the turnover box conveyor belt. The moving structure and the clamping structure are located on the first frame. The clamping structure is connected to the moving structure. The moving structure drives the clamping structure to move in the X, Y, and Z directions. The second frame is located near the first frame. The straightening structure is located on the second frame. After the turnover box is gripped by the clamping structure, it is placed on the second frame. The straightening structure straightens the alignment position of the turnover box.

[0005] As a further improvement of this utility model, the movable structure includes a movable frame, an X-axis movable module, a Y-axis movable module, and a Z-axis movable module. The movable frame is mounted on the first frame, the X-axis movable module is mounted on the movable frame, the Y-axis movable module is connected to the X-axis movable module, the Z-axis movable module is connected to the Y-axis movable module, and the clamping structure is connected to the Z-axis movable module.

[0006] As a further improvement of this utility model, the X-axis moving module includes an X-axis moving motor, a drive wheel, a first synchronous pulley, a second synchronous pulley, a synchronous belt, a first lead screw, and a first moving block. A first motor mount is provided on one side of the moving frame, and the X-axis moving motor is mounted on the first motor mount. The drive wheel is connected to the output shaft of the X-axis moving motor. The first synchronous pulley is mounted on the first motor mount. First lead screw mounts are provided at both ends of the moving frame, and the first lead screw is mounted on the first lead screw mount. The second synchronous pulley is connected to one end of the first lead screw. The synchronous belt is sequentially sleeved on the drive wheel, the first synchronous pulley, and the second synchronous pulley. The first moving block is connected to a nut mounted on the first lead screw. First slide rails are also provided at both ends of the moving frame, and the first moving block is slidably connected to the first slide rails. A first drag chain is provided on the moving frame, and one end of the first drag chain is connected to the first moving block.

[0007] As a further improvement of this utility model, the Y-axis moving module includes a Y-axis moving motor, a second lead screw, a second moving block, and a second slide rail. The Y-axis moving motor is disposed on one side of the first moving block, and the driving direction of the Y-axis moving motor is perpendicular to the driving direction of the X-axis moving motor. The first moving block is provided with a second lead screw seat, and the second lead screw is disposed on the second lead screw seat. The second lead screw is connected to the output shaft of the Y-axis moving motor. The second moving block is connected to a nut disposed on the second lead screw. The first moving block is provided with a second slide rail, and the second moving block is slidably connected to the second slide rail. The first moving block is provided with a second drag chain, and one end of the second drag chain is connected to the second moving block.

[0008] As a further improvement of this utility model, the Z-axis moving module includes a Z-axis moving motor, a third lead screw, a third moving block, and a third slide rail. A second motor seat is provided on the second moving block, and the Z-axis moving motor is mounted on the second motor seat. The driving direction of the Z-axis moving motor is vertically downward. A third lead screw seat is provided on the second moving block, and the third lead screw is mounted on the third lead screw seat. One end of the third lead screw is connected to the output shaft of the Z-axis moving motor. The third moving block is connected to a nut mounted on the third lead screw and to the clamping structure. The second moving block is provided with the third slide rail, and the third moving block is slidably connected to the third slide rail. A third drag chain is provided on the second moving block, and one end of the third drag chain is connected to the third moving block.

[0009] As a further improvement of this utility model, the clamping structure includes a clamping cylinder, a clamping plate and two clamping claw structures. The clamping plate is connected to the Z-axis moving module, the clamping cylinder is disposed in the middle of the clamping plate, and the two clamping claw structures are disposed on both sides of the clamping cylinder and connected to the clamping cylinder.

[0010] As a further improvement of this utility model, the gripper structure includes a first rotating gripper, a second rotating gripper, a drive slider, a first clamping slider, a second clamping slider, a fourth slide rail, a fifth slide rail, and a drive plate. The drive slider is connected to the piston rod of the clamping cylinder. The fourth and fifth slide rails are horizontally arranged on the clamping plate. The first clamping slider is slidably connected to the fourth slide rail, and the second clamping slider is slidably connected to the fifth slide rail. Both the first and second clamping sliders are connected to the drive slider. The two ends of the drive plate are respectively connected to the first and second clamping sliders. The first and second rotating grippers are located below the clamping plate. The drive plate is provided with a drive groove, and the tops of the first and second rotating grippers are engaged in the drive groove.

[0011] As a further improvement of this utility model, the clamping plate is provided with a clamping sensor for detecting whether the clamping cylinder is activated. The clamping sensor is located close to the clamping cylinder, and a first material sensor is provided on one side of the clamping plate.

[0012] As a further improvement of this utility model, the correction structure includes a conveyor frame, a correction cylinder, a second material sensor, a third material sensor, and a correction sensor. The conveyor frame is disposed on the top of the second frame, the correction cylinder is disposed on the second frame and located on the right side of the conveyor frame, and the piston rod of the correction cylinder is provided with a push block. The second material sensor is disposed on the left side of the input end of the conveyor frame, the third material sensor is disposed on the left side of the output end of the conveyor frame, and the correction sensor is disposed on the right side of the output end of the conveyor frame.

[0013] As a further improvement of this utility model, it also includes a third frame and a weighing platform. The third frame is arranged close to the second frame, and the weighing platform is arranged on the top of the third frame. The weighing platform is connected to the output end of the conveyor frame, and the weighing platform is equipped with a positioning sensor.

[0014] The beneficial effects of this utility model are as follows: The equipment adopts an automatic material feeding device, which increases the feeding capacity from the original 5 boxes to 32 boxes, reduces the employee feeding frequency by 80%, and greatly reduces the loss of material feeding time; the equipment completes automatic feeding, which effectively reduces the employee handling actions and improves the employee's work efficiency; the equipment height is consistent with the height of the next process, which reduces the employee's unnecessary material handling actions and greatly reduces the employee's fatigue. Attached Figure Description

[0015] Figure 1 This is an overall drawing of the device of this utility model;

[0016] Figure 2 This is a schematic diagram of the movable structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the clamping structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the correction structure and weighing platform of this utility model.

[0019] Reference numerals: 1-Moving structure, 2-Clamping structure, 3-First frame, 4-Second frame, 5-Third frame, 6-Weighing platform, 7-Correcting cylinder, 8-Push block, 9-Second material sensor, 10-Third material sensor, 11-Correcting sensor, 12-Position sensor, 100-X-direction moving motor, 101-First motor base, 102-Drive wheel, 103-First synchronous pulley, 104-Synchronous belt, 105-Second synchronous pulley, 106-First slide rail, 107-First lead screw, 108-First drag chain, 109-First moving block, 110-Second moving block, 1 11-Y-axis moving motor, 112-Second lead screw, 113-Second slide rail, 114-Second drag chain, 115-Z-axis moving motor, 116-Second motor base, 117-Third lead screw, 118-Third moving block, 200-Clamping plate, 201-Clamping cylinder, 202-Drive slider, 203-First clamping slider, 204-Fourth slide rail, 205-Second clamping slider, 206-Fifth slide rail, 207-Drive plate, 208-Drive groove, 209-First rotating gripper, 210-Second rotating gripper, 211-Clamping sensor, 212-First material sensor. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings, while the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0021] This utility model provides an automatic feeding device for turnover boxes, including a first frame 3, a second frame 4, a moving structure 1, a clamping structure 2, and a straightening structure. The first frame 3 is located near the turnover box conveyor belt. The moving structure 1 and the clamping structure 2 are located on the first frame 3. The clamping structure 2 is connected to the moving structure 1. The moving structure 1 drives the clamping structure 2 to move in the X, Y, and Z directions. The second frame 4 is located near the first frame 3. The straightening structure is located on the second frame 4. After the turnover box is gripped by the clamping structure 2, it is placed on the second frame 4. The straightening structure corrects the alignment position of the turnover box.

[0022] This device is used in the field of automatic feeding technology. The moving structure 1 moves the clamping structure 2 to the production line where material needs to be transferred. The clamping structure 2 clamps the material, and then the moving structure 1 transfers the material to the straightening structure for alignment and correction, facilitating subsequent processing. This equipment can replace manual labor for feeding and stacking material turnover boxes. Optimized grippers can also handle the feeding and stacking of packaging boxes.

[0023] In one embodiment of this utility model, the movable structure 1 includes a movable frame, an X-axis movable module, a Y-axis movable module, and a Z-axis movable module. The movable frame is mounted on the first frame 3, the X-axis movable module is mounted on the movable frame, the Y-axis movable module is connected to the X-axis movable module, the Z-axis movable module is connected to the Y-axis movable module, and the clamping structure 2 is connected to the Z-axis movable module. The X-axis movable module enables the clamping structure 2 to reciprocate in the X direction, the Y-axis movable module enables the clamping structure 2 to reciprocate in the Y direction, and the Z-axis movable module enables the clamping structure 2 to reciprocate in the Z direction. These three modules are used to move the clamping structure 2 to the corresponding position for corresponding operations.

[0024] In another embodiment of this utility model, the X-axis moving module includes an X-axis moving motor 100, a drive wheel 102, a first synchronous wheel 103, a second synchronous wheel 105, a synchronous belt 104, a first lead screw 107, and a first moving block 109. A first motor base 101 is provided on one side of the moving frame. The X-axis moving motor 100 is mounted on the first motor base 101. The drive wheel 102 is connected to the output shaft of the X-axis moving motor 100. The first synchronous wheel 103 is mounted on the first motor base 101. First lead screw 107 seats are provided at both ends of the moving frame. The first lead screw 107 is mounted on the first lead screw 107 seat, the second synchronous pulley 105 is connected to one end of the first lead screw 107, the synchronous belt 104 is sequentially mounted on the drive pulley 102, the first synchronous pulley 103 and the second synchronous pulley 105, the first moving block 109 is connected to the nut mounted on the first lead screw 107, the two ends of the moving frame are also provided with the first slide rail 106, the first moving block 109 is slidably connected to the first slide rail 106, the moving frame is provided with the first drag chain 108, one end of the first drag chain 108 is connected to the first moving block 109.

[0025] After the X-axis moving motor 100 is started, it drives the drive wheel 102 to rotate, which in turn drives the first synchronous wheel 103 and the second synchronous wheel 105 to rotate through the synchronous belt 104. The rotation of the second synchronous wheel 105 will cause the first lead screw 107 to rotate, and the nut set on the first lead screw 107 will move linearly, driving the first moving block 109 to make linear reciprocating motion in the X direction on the first slide rail 106. At the same time, the first drag chain 108 is set to protect and guide cables, oil pipes, air pipes, etc. in the moving state.

[0026] In another embodiment of this utility model, the Y-axis moving module includes a Y-axis moving motor 111, a second lead screw 112, a second moving block 110, and a second slide rail 113. The Y-axis moving motor 111 is disposed on one side of the first moving block 109, and the driving direction of the Y-axis moving motor 111 is perpendicular to the driving direction of the X-axis moving motor 100. The first moving block 109 is provided with a seat for the second lead screw 112, and the second lead screw 112 is disposed on the seat for the second lead screw 112. The second lead screw 112 is connected to the output shaft of the Y-axis moving motor 111. The second moving block 110 is connected to a nut disposed on the second lead screw 112. The first moving block 109 is provided with the second slide rail 113, and the second moving block 110 is slidably connected to the second slide rail 113. The first moving block 109 is provided with a second drag chain 114, and one end of the second drag chain 114 is connected to the second moving block 110.

[0027] After the Y-axis moving motor 111 is started, it drives the second lead screw 112 to rotate. The nut set on the second lead screw 112 will move linearly, driving the second moving block 110 to make linear reciprocating motion in the Y direction on the second slide rail 113. At the same time, the second drag chain 114 is set to protect and guide the cables, oil pipes, air pipes, etc. in the moving state.

[0028] In another embodiment of this utility model, the Z-axis moving module includes a Z-axis moving motor 115, a third lead screw 117, a third moving block 118, and a third slide rail. A second motor seat 116 is provided on the second moving block 110, and the Z-axis moving motor 115 is disposed on the second motor seat 116. The driving direction of the Z-axis moving motor 115 is vertically downward. A seat for the third lead screw 117 is disposed on the second moving block 110, and one end of the third lead screw 117 is connected to the output shaft of the Z-axis moving motor 115. The third moving block 118 is connected to a nut disposed on the third lead screw 117 and is connected to the clamping structure 2. The second moving block 110 is provided with the third slide rail, and the third moving block 118 is slidably connected to the third slide rail. A third drag chain is provided on the second moving block 110, and one end of the third drag chain is connected to the third moving block 118.

[0029] After the Z-axis moving motor 115 is started, it drives the third lead screw 117 to rotate. The nut set on the third lead screw 117 will move linearly, driving the third moving block 118 to make linear reciprocating motion in the Z direction on the third slide rail. At the same time, the third drag chain is set to protect and guide cables, oil pipes, air pipes, etc. in the moving state.

[0030] In another embodiment of the present invention, the clamping structure 2 includes a clamping cylinder 201, a clamping plate 200 and two gripper structures. The clamping plate 200 is connected to the Z-axis moving module. The clamping cylinder 201 is disposed in the middle of the clamping plate 200. The two gripper structures are disposed on both sides of the clamping cylinder 201 and connected to the clamping cylinder 201.

[0031] In another embodiment of this utility model, the gripper structure includes a first rotating gripper 209, a second rotating gripper 210, a drive slider 202, a first gripping slider 203, a second gripping slider 205, a fourth slide rail 204, a fifth slide rail 206, and a drive plate 207. The drive slider 202 is connected to the piston rod of the gripping cylinder 201. The fourth slide rail 204 and the fifth slide rail 206 are horizontally arranged on the gripping plate 200. The first gripping slider 203 is slidably connected to the fourth slide rail 204, and the second gripping slider... 205 is slidably connected to the fifth slide rail 206. The first clamping slider 203 and the second clamping slider 205 are both connected to the driving slider 202. The two ends of the driving plate 207 are respectively connected to the first clamping slider 203 and the second clamping slider 205. The first rotating jaw 209 and the second rotating jaw 210 are located below the clamping plate 200. The driving plate 207 is provided with a driving groove 208. The top of the first rotating jaw 209 and the top of the second rotating jaw 210 are both engaged in the driving groove 208.

[0032] The clamping plate 200 is connected to the third moving block 118. When the piston rod of the clamping cylinder 201 retracts, the driving slider 202 retracts, causing the first clamping slider 203 and the second clamping slider 205 to retract as well. The tops of the first rotating jaw 209 and the second rotating jaw 210 are located at both ends within the driving groove 208, i.e., the first rotating jaw 209 and the second rotating jaw 210 rotate 90° counterclockwise. When the piston rod of the clamping cylinder 201 extends, the tops of the first rotating jaw 209 and the second rotating jaw 210 abut against the middle of the driving groove 208, i.e., the first rotating jaw 209 and the second rotating jaw 210 rotate 90° clockwise. Therefore, when the clamping structure 2 needs to clamp materials, the piston rod of the clamping cylinder 201 retracts; when releasing the material, the piston rod of the clamping cylinder 201 extends.

[0033] In another embodiment of this utility model, the clamping plate 200 is provided with a clamping sensor 211 for detecting whether the clamping cylinder 201 is activated. The clamping sensor 211 is located close to the clamping cylinder 201, and a first material presence sensor 212 is provided on one side of the clamping plate 200. The clamping sensor 211 detects the activation of the clamping cylinder 201 and immediately reports to the background control system once activation is detected. The sensing end of the first material presence sensor 212 faces downwards, so if material is grabbed, it can be immediately sensed and a signal transmitted to the background control system.

[0034] In another embodiment of this utility model, the correction structure includes a conveyor frame, a correction cylinder 7, a second material sensor 9, a third material sensor 10, and a correction sensor 11. The conveyor frame is disposed on top of the second frame 4, and the correction cylinder 7 is disposed on the second frame 4 and located on the right side of the conveyor frame. The piston rod of the correction cylinder 7 is provided with a push block 8. The second material sensor 9 is disposed on the left side of the input end of the conveyor frame, the third material sensor 10 is disposed on the left side of the output end of the conveyor frame, and the correction sensor 11 is disposed on the right side of the output end of the conveyor frame. The left side of the conveyor frame aligns the sides of all materials. When the material passes the correction cylinder 7, the piston rod of the correction cylinder 7 drives the push block 8 to push it out, causing the side of the material to contact and align with the left side of the conveyor frame. This operation can correct and align the positions of all materials, facilitating subsequent operation steps. The second material sensor 9 can sense whether there is material placed in the correction position of the push block 8 of the correction cylinder 7. The third material sensor 10 can sense whether the material has been pushed to the left alignment position. If the correction sensor 11 senses the material, it proves that the material is still on the right side and has not been pushed to the left alignment position, and the equipment alarms.

[0035] In another embodiment of this utility model, a third frame 5 and a weighing platform 6 are also included. The third frame 5 is disposed near the second frame 4, and the weighing platform 6 is disposed on top of the third frame 5. The weighing platform 6 is connected to the output end of the conveyor frame, and the weighing platform 6 is equipped with a position sensor 12. The weighing platform 6 can perform delayed weighing of materials, and the discharge position of the weighing platform 6 can be connected to the next process conveyor belt.

[0036] The operation process of this equipment is described using a turnover box as an example. First, the turnover box is transported to the first frame 3 via a conveyor belt. The moving structure 1 moves in the X, Y, and Z directions, moving the clamping structure 2 to the turnover box. Since there are two clamping claws, both sides of the box can be clamped. The first material sensor 212 detects the presence of material. The Z-axis moving module controls the clamping structure 2 to move down along the Z-axis to the material-picking position. The piston rod of the clamping cylinder 201 retracts, and the first rotating jaw 209 and the second rotating jaw 210 rotate 90° counterclockwise. The Z-axis moving module controls the clamping structure 2 to move up along the Z-axis. The clamping sensor 211 senses whether the clamping cylinder 201 is activated; if it is not activated, an alarm is displayed.

[0037] Next, the X-axis and Y-axis moving modules control the clamping structure 2 to move to directly above the second frame 4 along the X and Y axes. The Z-axis moving module places the turnover box on the conveyor frame. The second material sensor 9 detects the presence of material, and the correction sensor 11 also detects the presence of material, thus completing the positioning. The correction cylinder 7 actuates, pushing out its piston rod, and uses the push block 8 to correct the turnover box to the left edge position. After correction, the correction sensor 11 stops detecting, and the correction cylinder 7 retracts to its original position. The motor drives the rollers of the conveyor frame to move to the weighing platform 6. The piston rod of the clamping cylinder 201 extends, and the first rotating jaw 209 and the second rotating jaw 210 rotate 90° clockwise, move upward along the Z-axis, and return to the position of the turnover box conveyor belt, waiting for the signal for the next operation.

[0038] Once the position sensor 12 detects the presence of material, it stops moving, delays for weighing, and after data collection, the material flows into the next process. The discharge position can be connected to the next process conveyor belt, allowing for standalone operation. When the second material sensor 9 and the third material sensor 10 detect the presence of material, the grippers do not descend but wait.

[0039] After the next process is completed, the equipment repeats the above process and completes the corresponding actions. After the material on the pallet is cleared, an alarm will be triggered to indicate that the pallet has been loaded.

[0040] This equipment can perform both feeding and stacking operations, greatly improving its compatibility. It utilizes an automatic material feeding system, increasing the feeding capacity from 5 boxes to 32 boxes, reducing employee feeding frequency by 80% and significantly minimizing labor time spent on material handling. The automatic feeding system effectively reduces employee handling actions, improving work efficiency. The equipment height is aligned with the next process step, reducing unnecessary material handling actions and significantly reducing employee fatigue. The equipment also includes weighing statistics, providing a clear display of the material feeding quantity.

[0041] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the protection scope of the present invention.

Claims

1. An automatic feeding device for turnover boxes, characterized in that, The system includes a first frame, a second frame, a moving structure, a clamping structure, and a straightening structure. The first frame is located near the conveyor belt of the turnover box. The moving structure and the clamping structure are located on the first frame. The clamping structure is connected to the moving structure. The moving structure drives the clamping structure to move in the X, Y, and Z directions. The second frame is located near the first frame. The straightening structure is located on the second frame. The turnover box is gripped by the clamping structure and placed on the second frame. The straightening structure straightens the alignment position of the turnover box.

2. The automatic feeding device for turnover boxes according to claim 1, characterized in that, The movable structure includes a movable frame, an X-axis movable module, a Y-axis movable module, and a Z-axis movable module. The movable frame is mounted on the first frame, the X-axis movable module is mounted on the movable frame, the Y-axis movable module is connected to the X-axis movable module, the Z-axis movable module is connected to the Y-axis movable module, and the clamping structure is connected to the Z-axis movable module.

3. The automatic feeding device for turnover boxes according to claim 2, characterized in that, The X-axis movement module includes an X-axis movement motor, a drive wheel, a first synchronous pulley, a second synchronous pulley, a synchronous belt, a first lead screw, and a first moving block. A first motor mount is provided on one side of the moving frame, and the X-axis movement motor is mounted on the first motor mount. The drive wheel is connected to the output shaft of the X-axis movement motor. The first synchronous pulley is mounted on the first motor mount. First lead screw mounts are provided at both ends of the moving frame, and the first lead screw is mounted on the first lead screw mount. The second synchronous pulley is connected to one end of the first lead screw. The synchronous belt is sequentially sleeved on the drive wheel, the first synchronous pulley, and the second synchronous pulley. The first moving block is connected to a nut mounted on the first lead screw. First slide rails are also provided at both ends of the moving frame, and the first moving block is slidably connected to the first slide rails. A first drag chain is provided on the moving frame, and one end of the first drag chain is connected to the first moving block.

4. The automatic feeding device for turnover boxes according to claim 3, characterized in that, The Y-axis movement module includes a Y-axis movement motor, a second lead screw, a second moving block, and a second slide rail. The Y-axis movement motor is disposed on one side of the first moving block, and the driving direction of the Y-axis movement motor is perpendicular to the driving direction of the X-axis movement motor. The first moving block is provided with a second lead screw seat, and the second lead screw is disposed on the second lead screw seat. The second lead screw is connected to the output shaft of the Y-axis movement motor. The second moving block is connected to a nut disposed on the second lead screw. The first moving block is provided with a second slide rail, and the second moving block is slidably connected to the second slide rail. The first moving block is provided with a second drag chain, and one end of the second drag chain is connected to the second moving block.

5. An automatic feeding device for turnover boxes according to claim 4, characterized in that, The Z-axis movement module includes a Z-axis movement motor, a third lead screw, a third moving block, and a third slide rail. A second motor mount is provided on the second moving block, and the Z-axis movement motor is mounted on the second motor mount. The driving direction of the Z-axis movement motor is vertically downward. A third lead screw mount is provided on the second moving block, and the third lead screw is mounted on the third lead screw mount. One end of the third lead screw is connected to the output shaft of the Z-axis movement motor. The third moving block is connected to a nut mounted on the third lead screw and to the clamping structure. The second moving block is provided with the third slide rail, and the third moving block is slidably connected to the third slide rail. A third drag chain is provided on the second moving block, and one end of the third drag chain is connected to the third moving block.

6. An automatic feeding device for turnover boxes according to claim 2, characterized in that, The clamping structure includes a clamping cylinder, a clamping plate, and two gripper structures. The clamping plate is connected to the Z-axis moving module. The clamping cylinder is located in the middle of the clamping plate. The two gripper structures are located on both sides of the clamping cylinder and are connected to the clamping cylinder.

7. An automatic feeding device for turnover boxes according to claim 1, characterized in that, The gripper structure includes a first rotating gripper, a second rotating gripper, a drive slider, a first clamping slider, a second clamping slider, a fourth slide rail, a fifth slide rail, and a drive plate. The drive slider is connected to the piston rod of the clamping cylinder. The fourth and fifth slide rails are horizontally arranged on the clamping plate. The first clamping slider is slidably connected to the fourth slide rail, and the second clamping slider is slidably connected to the fifth slide rail. Both the first and second clamping sliders are connected to the drive slider. The two ends of the drive plate are respectively connected to the first and second clamping sliders. The first and second rotating grippers are located below the clamping plate. The drive plate is provided with a drive groove, and the tops of the first and second rotating grippers are engaged in the drive groove.

8. An automatic feeding device for turnover boxes according to claim 7, characterized in that, The clamping plate is equipped with a clamping sensor for detecting whether the clamping cylinder is activated. The clamping sensor is located close to the clamping cylinder, and a first material sensor is provided on one side of the clamping plate.

9. An automatic feeding device for turnover boxes according to claim 1, characterized in that, The correction structure includes a conveyor frame, a correction cylinder, a second material sensor, a third material sensor, and a correction sensor. The conveyor frame is located on top of the second frame. The correction cylinder is located on the second frame and to the right of the conveyor frame. The piston rod of the correction cylinder is equipped with a push block. The second material sensor is located to the left of the input end of the conveyor frame. The third material sensor is located to the left of the output end of the conveyor frame. The correction sensor is located to the right of the output end of the conveyor frame.

10. An automatic feeding device for turnover boxes according to claim 9, characterized in that, It also includes a third frame and a weighing platform. The third frame is located close to the second frame, and the weighing platform is located on top of the third frame. The weighing platform is connected to the output end of the conveyor frame, and the weighing platform is equipped with a positioning sensor.

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