Multidirectional bundling device for conveying expanded explosive finished product boxes

Abstract

The utility model relates to the technical field of expanded explosive finished product box conveying, in particular to a multidirectional bundling device for expanded explosive finished product box conveying, which comprises a conveying mechanism, a first bundling device, a second bundling device, a first steering device and a second steering device. Therefore, multidirectional binding operation of the explosive finished product box can be achieved, potential safety hazards and labor intensity of workers in contact with the explosive finished product box are reduced, and production continuity is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of conveying finished boxes of expanded explosives, and in particular to a multi-directional binding device for conveying finished boxes of expanded explosives. Background Technology

[0002] Currently, strapping machinery, as a core piece of equipment in the material conveying and sealing process, is widely used in various industrial sectors. However, in the scenario of transferring finished boxes of expanded ammonium nitrate explosives, existing technologies have significant limitations: standard strapping equipment can only perform lateral strapping operations along the direction of the conveyor belt. Due to the differentiated packaging requirements of different customers for dangerous goods transportation, some operating conditions require simultaneous longitudinal and lateral composite strapping of explosive boxes on the conveyor line. In this case, the standard-oriented finished boxes must be axially turned 90° during the conveying process. In actual production processes, the finished boxes always maintain a uniform direction of travel on the conveyor system. When customers request multi-directional strapping, traditional solutions rely on manual intervention. Operators must monitor the conveyor line dynamics in real time and manually adjust the spatial orientation of the boxes to meet the strapping direction requirements. This operating mode has two drawbacks: First, personnel need to perform box turning actions frequently, which significantly increases labor intensity and easily leads to safety hazards caused by operator fatigue; second, the production management requirements of fixed positions and personnel conflict with the demand for sudden turning operations, and frequent production interruptions seriously restrict the efficiency of continuous operation and form a capacity bottleneck. Therefore, there is an urgent need for a multi-directional binding device for conveying finished explosive boxes, which can realize multi-directional binding operations of finished explosive boxes, reduce the safety hazards and labor intensity of workers coming into contact with finished explosive boxes, and ensure the continuity of production. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a multi-directional binding device for conveying finished explosive boxes, which can realize multi-directional binding operations of finished explosive boxes, reduce the safety hazards and labor intensity of workers coming into contact with finished explosive boxes, and ensure the continuity of production.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a multi-directional bundling device for conveying finished boxes of puffed explosives, including a conveying mechanism, a first bundling device, a first turning device, a first pushing device, a second bundling device, a second turning device, and a second pushing device. The first bundling device, the first turning device, the second bundling device, and the second turning device are arranged sequentially along the conveying direction of the conveying mechanism. The first pushing device is located above the first turning device and is used to push the bundled explosive box along the conveying direction. The second pushing device is located above the second turning device and is used to push the bundled explosive box along the conveying direction.

[0005] The first steering device and the second steering device have the same structure. The first steering device includes a turntable, a rotating shaft, a housing, a telescopic rod, a guide rail, a sliding block, and an electric push rod. The housing is connected to the base and is located below the turntable. The guide rail is connected inside the housing, and the axis of the guide rail is in the Y direction. The sliding block is slidably connected to the guide rail. The cylinder of the electric push rod is connected to the housing, and the axis of the cylinder of the electric push rod is in the Y direction. The sliding block is connected to the piston rod of the electric push rod. The cylinder of the telescopic rod is pivotally connected to the lower part of the sliding block. The rotating shaft is coaxially connected to the lower part of the turntable. The outer wall of the rotating shaft is provided with a through hole, and the telescopic end of the telescopic rod moves axially along the through hole.

[0006] Furthermore, the conveying mechanism includes a first conveyor belt, a second conveyor belt, a third conveyor belt, a fourth conveyor belt, and a fifth conveyor belt. The first, second, third, fourth, and fifth conveyor belts have the same conveying direction. A first binding device is located between the end of the first conveyor belt and the beginning of the second conveyor belt. A first steering device is located between the end of the second conveyor belt and the beginning of the third conveyor belt. A second binding device is located between the end of the third conveyor belt and the beginning of the fourth conveyor belt. A second steering device is located between the end of the fourth conveyor belt and the beginning of the fifth conveyor belt.

[0007] Furthermore, the first and second pushing devices are identical. The first pushing device includes a first lead screw shaft, a second lead screw shaft, a drive mechanism, a first slider, a second slider, a first cylinder, a second cylinder, a first clamping plate, and a second clamping plate. The first lead screw shaft is connected to the base and is located above the conveying mechanism. The second lead screw shaft is connected to the base and is parallel to the first lead screw shaft, located on the Y-axis side of the first lead screw shaft. The first slider is slidably connected to the first lead screw shaft, and the second slider is slidably connected to the second lead screw shaft. The cylinder body of the first cylinder is connected to the first slider, and the cylinder body axis of the first cylinder is in the Y-axis direction. The first clamping plate is connected to the piston rod of the first cylinder. The cylinder body of the second cylinder is connected to the second slider and is parallel to the first cylinder. The second clamping plate is connected to the piston rod of the second cylinder. The drive mechanism is used to rotate the first and second lead screw shafts.

[0008] Furthermore, a first clamping device is provided at the first binding device, and a second clamping device is provided at the second binding device. The first and second clamping devices have the same structure. The first clamping device includes a first pressure plate and a second pressure plate, which are located on both sides of the first binding device. The first pressure plate is movably connected to the base in the vertical direction, and the second pressure plate is movably connected to the base in the vertical direction. A third cylinder and a fourth cylinder are provided on the base. The cylinder shafts of the third cylinder and the fourth cylinder are both in the vertical direction. The first pressure plate is connected to the piston rod of the third cylinder, and the second pressure plate is connected to the piston rod of the fourth cylinder.

[0009] Furthermore, a straightening device is provided at the first conveyor belt. The straightening device includes a fixed base, a rotating shaft, a first connecting rod, a second connecting rod, a third connecting rod, strip blocks, a track, a first connecting plate, a second connecting plate, a fifth cylinder, a sixth cylinder, a first straightening plate, and a second straightening plate. The fixed base is connected to the base and is located above the first conveyor belt. The rotating shaft is connected to the fixed base, and the axis of the rotating shaft is vertical. Two strip blocks are located on both sides of the rotating shaft, with the strip blocks parallel to the Y-direction. The track is connected to both ends of the strip blocks and is parallel to the strip blocks. The first connecting plate is connected to one end of the two strip blocks and is slidably connected to the track. The first connecting plate is parallel to the conveying direction of the conveying mechanism. The second connecting plate is connected to the other end of the two strip blocks and is slidably connected to the track. The middle part of the connecting rod is rotatably connected to the rotating shaft. One end of the second connecting rod is pivotally connected to one end of the first connecting rod, and the other end of the second connecting rod is pivotally connected to the first connecting plate. One end of the third connecting rod is pivotally connected to the other end of the first connecting rod, and the other end of the third connecting rod is pivotally connected to the second connecting plate. The fifth cylinder is connected to the fixed seat and is located on the opposite side of the X direction of the fixed seat. One end of the first connecting plate is connected to the piston rod of the fifth cylinder. The sixth cylinder is connected to the fixed seat and is located on the X direction side of the fixed seat. The other end of the first connecting plate is connected to the piston rod of the sixth cylinder. The axes of the fifth cylinder and the sixth cylinder are both in the Y direction. The first straightening plate is connected to the first connecting plate, and the second straightening plate is connected to the second connecting plate. The first straightening plate and the second straightening plate are located on both sides of the Y direction of the first conveyor belt, respectively.

[0010] The beneficial effects of this utility model are as follows: Compared with the prior art, the explosive finished product box can be rotated through the conveying mechanism, the first binding device, the second binding device, the first steering device and the second steering device, thereby realizing multi-directional binding operation of the explosive finished product box, reducing the safety hazards and labor intensity of workers coming into contact with the finished explosive box, and ensuring the continuity of production. Attached Figure Description

[0011] Figure 1 This is a front view of a multi-directional binding device for conveying finished boxes of expanded explosives according to a specific embodiment of this utility model;

[0012] Figure 2 This is a bottom view of a multi-directional binding device for conveying finished boxes of expanded explosives, according to a specific embodiment of this utility model.

[0013] Figure 3 for Figure 2 Enlarged view of part A;

[0014] Figure 4 This is a schematic diagram of the structure of a multi-directional binding device for conveying finished boxes of expanded explosives according to a specific embodiment of this utility model;

[0015] Figure 5for Figure 4 Enlarged view of part B.

[0016] Label Explanation

[0017] 1. Base; 11. Conveying mechanism; 111. First conveyor belt; 112. Second conveyor belt; 113. Third conveyor belt; 114. Fourth conveyor belt; 115. Fifth conveyor belt; 12. Third cylinder; 13. Fourth cylinder;

[0018] 2. First binding device;

[0019] 3. First steering device; 31. Rotary shaft; 32. Housing; 33. Telescopic rod; 34. Guide rail; 35. Sliding block; 36. Electric push rod; 37. Turntable;

[0020] 4. First pushing device; 41. First lead screw shaft; 42. Second lead screw shaft; 43. First slider; 44. Second slider; 45. First cylinder; 46. Second cylinder; 47. First clamping plate; 48. Second clamping plate;

[0021] 5. Second binding device;

[0022] 6. Second steering device;

[0023] 7. Second propulsion device;

[0024] 8. First pressing device; 81. First pressure plate; 82. Second pressure plate;

[0025] 9. Second clamping device;

[0026] 10. Correction device; 101. Fixed seat; 102. Rotating shaft; 103. First connecting rod; 104. Second connecting rod; 105. Third connecting rod; 106. Strip block; 107. Track; 108. First connecting plate; 1081. Fifth cylinder; 1082. Sixth cylinder; 1083. First correction plate; 109. Second connecting plate; 1091. Second correction plate. Detailed Implementation

[0027] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0028] Please refer to Figures 1 to 5A multi-directional bundling device for conveying finished boxes of puffed explosives includes a conveying mechanism 11, a first bundling device 2, a first steering device 3, a first pushing device 4, a second bundling device 5, a second steering device 6, and a second pushing device 7. The first bundling device 2, the first steering device 3, the second bundling device 5, and the second steering device 6 are arranged sequentially along the conveying direction of the conveying mechanism 11. The first pushing device 4 is located above the first steering device 3 and is used to push the bundled explosive boxes along the conveying direction. The second pushing device 7 is located above the second steering device 6 and is used to push the bundled explosive boxes along the conveying direction.

[0029] The first steering device 3 and the second steering device 6 have the same structure. The first steering device 3 includes a turntable 37, a rotating shaft 31, a housing 32, a telescopic rod 33, a guide rail 34, a sliding block 35, and an electric push rod 36. The housing 32 is connected to the base 1 and is located below the turntable 37. The guide rail 34 is connected inside the housing 32 and its axial direction is Y. The sliding block 35 is slidably connected to the guide rail 34. The cylinder of the electric push rod 36 is connected to the housing 32 and its axial direction is Y. The sliding block 35 is connected to the piston rod of the electric push rod 36. The cylinder of the telescopic rod 33 is pivotally connected to the lower part of the sliding block 35. The rotating shaft 31 is coaxially connected to the lower part of the turntable 37. The outer wall of the rotating shaft 31 is provided with a through hole, and the telescopic end of the telescopic rod 33 moves axially along the through hole.

[0030] In the above embodiments, it should be noted that the first binding device 2 and the second binding device 5 are the same and are existing technologies. The internal mechanisms will not be described in detail here. When the explosive finished product box conveying mechanism 11 conveys the explosive finished product box to the first binding device 2, it performs horizontal binding. After horizontal binding, the horizontally bound explosive finished product box is conveyed to the first steering device 3 through the conveying mechanism 11. The telescopic end of the electric push rod 36 extends and retracts, causing the sliding block 35 to slide along the guide rail 34. When the sliding block 35 moves, the outer wall of the telescopic end of the telescopic rod 33 abuts against the inner wall of the through hole, thereby causing the rotating shaft 31 to rotate 90°. At the same time, the telescopic end of the telescopic rod 33 moves in the through hole. Then, the first pushing device 4 pushes the horizontally bound explosive finished product box along the conveying direction. The explosives are conveyed to the second bundling device 5 via the conveying mechanism 11. The second bundling device 5 performs longitudinal bundling of the explosives finished box. After bundling, the explosives finished box is conveyed to the second turning device 6 via the conveying mechanism 11. The second turning device 6 rotates 90°, causing the explosives finished box to rotate 90°. Then, the explosives finished box is pushed along the conveying direction by the second pushing device 7 and escorted to the next process via the conveying mechanism 11. Compared with the prior art, the explosives finished box can be rotated by the conveying mechanism 11, the first bundling device 2, the second bundling device 5, the first turning device 3 and the second turning device 6, thereby realizing multi-directional bundling operation of the explosives finished box, reducing the safety hazards and labor intensity of workers coming into contact with the finished explosive boxes, and ensuring the continuity of production.

[0031] As an optional implementation, the conveying mechanism 11 includes a first conveyor belt 111, a second conveyor belt 112, a third conveyor belt 113, a fourth conveyor belt 114, and a fifth conveyor belt 115. The conveying directions of the first conveyor belt 111, the second conveyor belt 112, the third conveyor belt 113, the fourth conveyor belt 114, and the fifth conveyor belt 115 are uniform and the same. The first binding device 2 is located between the end of the first conveyor belt 111 and the beginning of the second conveyor belt 112. The first turning device 3 is located between the end of the second conveyor belt 112 and the beginning of the third conveyor belt 113. The second binding device 5 is located between the end of the third conveyor belt 113 and the beginning of the fourth conveyor belt 114. The second turning device 6 is located between the end of the fourth conveyor belt 114 and the beginning of the fifth conveyor belt 115.

[0032] In the above embodiments, all conveyor belts can be transported in one direction, which is suitable for special spatial layouts, such as rectangular spatial layouts.

[0033] As an optional implementation, the first pushing device 4 and the second pushing device 7 are identical. The first pushing device 4 includes a first lead screw 41, a second lead screw 42, a drive mechanism, a first slider 43, a second slider 44, a first cylinder 45, a second cylinder 46, a first clamping plate 47, and a second clamping plate 48. The first lead screw 41 is connected to the base 1 and is located above the conveying mechanism 11. The second lead screw 42 is connected to the base 1 and is parallel to the first lead screw 41. The second lead screw 42 is located at the first lead screw 41. On the Y-axis side of shaft 41, the first slider 43 is slidably connected to the first lead screw shaft 41, the second slider 44 is slidably connected to the second lead screw shaft 42, the cylinder body of the first cylinder 45 is connected to the first slider 43, the cylinder body shaft of the first cylinder 45 is in the Y-axis, the first clamping plate is connected to the piston rod of the first cylinder 45, the cylinder body of the second cylinder 46 is connected to the second slider 44, the second cylinder 46 is parallel to the first cylinder 45, the second clamping plate 48 is connected to the piston rod of the second cylinder 46, and the driving mechanism is used to rotate the first lead screw shaft 41 and the second lead screw shaft 42.

[0034] In the above embodiments, the driving mechanism is a synchronous belt. Synchronization is existing technology and is not shown in the accompanying drawings. The conveying shaft of the first lead screw shaft 41 is connected to the conveying shaft of the second lead screw shaft 42 via the synchronous belt. After the first steering device 3 completes the steering of the explosive finished box, the first clamping plate 47 and the second clamping plate 48 are used to clamp the explosive finished box. Then, the synchronous belt drives the first slider 43 and the second slider 44 to move along the conveying direction, pushing the explosive finished box onto the conveying mechanism 11.

[0035] As an optional implementation, a first pressing device 8 is provided at the first binding device 2, and a second pressing device 9 is provided at the second binding device. The first pressing device 8 and the second pressing device 9 have the same structure. The first pressing device 8 includes a first pressure plate 81 and a second pressure plate 82. The first pressure plate 81 and the second pressure plate 82 are respectively located on both sides of the first binding device 2. The first pressure plate 81 is movably connected to the base 1 in the vertical direction, and the second pressure plate 82 is movably connected to the base 1 in the vertical direction. A third cylinder 12 and a fourth cylinder 13 are provided on the base 1. The cylinder shafts of the third cylinder 12 and the fourth cylinder 13 are both in the vertical direction. The first pressure plate 81 is connected to the piston rod of the third cylinder 12, and the second pressure plate 82 is connected to the piston rod of the fourth cylinder 13.

[0036] In the above embodiments, the explosive finished product box is conveyed by the conveying mechanism 11. When the front end of the explosive finished product box is located at the first binding device 2, the first pressure plate 81 presses the rear end of the explosive finished product box, thereby binding the front end of the explosive finished product box. Similarly, when the rear end of the explosive finished product box is located at the first binding device 2, the second pressure plate 82 presses the front end of the explosive finished product box, thereby binding the rear end of the explosive finished product box.

[0037] As an optional implementation, a straightening device 10 is provided at the first conveyor belt 111. The straightening device 10 includes a fixed base 101, a rotating shaft 102, a first connecting rod 103, a second connecting rod 104, a third connecting rod 105, a strip block 106, a track 107, a first connecting plate 108, a second connecting plate 109, a fifth cylinder 1081, a sixth cylinder 1082, a first straightening plate 1083, and a second straightening plate 1091. The fixed base 101 is connected to the base 1 and is located above the first conveyor belt 111. The rotating shaft 102... 2. Connected to the fixed base 101, the axis of the rotating shaft 102 is vertical. Two blocks 106 are located on both sides of the rotating shaft 102. The blocks 106 are parallel to the Y direction. The track 107 is connected to both ends of the blocks 106 and is parallel to the blocks 106. The first connecting plate 108 is connected to one end of the two blocks and is slidably connected to the track 107. The first connecting plate 108 is parallel to the conveying direction of the conveying mechanism 11. The second connecting plate 109 is connected to the other end of the two blocks 106 and is parallel to the conveying direction of the conveying mechanism 11. The track 107 is slidably connected. The middle part of the first connecting rod 103 is rotatably connected to the rotating shaft 102. One end of the second connecting rod 104 is pivotally connected to one end of the first connecting rod, and the other end of the second connecting rod is pivotally connected to the first connecting plate 108. One end of the third connecting rod 105 is pivotally connected to the other end of the first connecting rod 103, and the other end of the third connecting rod 105 is pivotally connected to the second connecting plate 109. The fifth cylinder 1081 is connected to the fixed base 101, and the fifth cylinder 1081 is located on the opposite side of the X direction of the fixed base 101. One end of the first connecting plate 108 is connected to the fifth cylinder 108. The piston rod of cylinder 1081 and the sixth cylinder 1082 are connected to the fixed base 101. The sixth cylinder 1082 is located on the X-direction side of the fixed base 101. The other end of the first connecting plate 108 is connected to the piston rod of the sixth cylinder 1082. The axes of the fifth cylinder 1081 and the sixth cylinder 1082 are both in the Y direction. The first straightening plate 1083 is connected to the first connecting plate 108. The second straightening plate 1091 is connected to the second connecting plate 109. The first straightening plate 1083 and the second straightening plate 1091 are located on both sides of the first conveyor belt 111 in the Y direction.

[0038] In the above embodiments, when the finished explosive is conveyed between the first straightening plate 1083 and the second straightening plate 1091, the fifth cylinder 1081 and the sixth cylinder 1082 are driven simultaneously in the same direction, thereby causing the first connecting plate 108 to move toward the center of the first conveyor belt 111, which in turn causes the second connecting rod to drive the first connecting rod to rotate, and the first connecting rod to drive the third connecting rod 105 to swing, thereby causing the second connecting plate 109 to move, and thus causing the first straightening plate 1083 and the second straightening plate 1091 to correct the position of the finished explosive box.

[0039] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A multi-directional strapping device for conveying finished boxes of expanded explosives, characterized in that, It includes a conveying mechanism, a first binding device, a first steering device, a first pushing device, a second binding device, a second steering device, and a second pushing device. The first binding device, the first steering device, the second binding device, and the second steering device are arranged sequentially along the conveying direction of the conveying mechanism. The first pushing device is located above the first steering device and is used to push the bound explosive box along the conveying direction. The second pushing device is located above the second steering device and is used to push the bound explosive box along the conveying direction. The first steering device and the second steering device have the same structure. The first steering device includes a turntable, a rotating shaft, a housing, a telescopic rod, a guide rail, a sliding block, and an electric push rod. The housing is connected to the base and is located below the turntable. The guide rail is connected inside the housing, and the axis of the guide rail is in the Y direction. The sliding block is slidably connected to the guide rail. The cylinder of the electric push rod is connected to the housing, and the axis of the cylinder of the electric push rod is in the Y direction. The sliding block is connected to the piston rod of the electric push rod. The cylinder of the telescopic rod is pivotally connected to the lower part of the sliding block. The rotating shaft is coaxially connected to the lower part of the turntable. The outer wall of the rotating shaft is provided with a through hole, and the telescopic end of the telescopic rod moves axially along the through hole.

2. The multi-directional strapping device for conveying finished puffed explosive boxes according to claim 1, characterized in that, The conveying mechanism includes a first conveyor belt, a second conveyor belt, a third conveyor belt, a fourth conveyor belt, and a fifth conveyor belt. The first, second, third, fourth, and fifth conveyor belts have the same conveying direction. A first binding device is located between the end of the first conveyor belt and the beginning of the second conveyor belt. A first steering device is located between the end of the second conveyor belt and the beginning of the third conveyor belt. A second binding device is located between the end of the third conveyor belt and the beginning of the fourth conveyor belt. A second steering device is located between the end of the fourth conveyor belt and the beginning of the fifth conveyor belt.

3. The multi-directional strapping device for conveying finished puffed explosive boxes according to claim 1, characterized in that, The first and second pushing devices are identical. The first pushing device includes a first lead screw shaft, a second lead screw shaft, a drive mechanism, a first slider, a second slider, a first cylinder, a second cylinder, a first clamping plate, and a second clamping plate. The first lead screw shaft is connected to the base and is located above the conveying mechanism. The second lead screw shaft is connected to the base and is parallel to the first lead screw shaft, located on the Y-axis side of the first lead screw shaft. The first slider is slidably connected to the first lead screw shaft, and the second slider is slidably connected to the second lead screw shaft. The cylinder body of the first cylinder is connected to the first slider, and the cylinder body axis of the first cylinder is in the Y-axis direction. The first clamping plate is connected to the piston rod of the first cylinder. The cylinder body of the second cylinder is connected to the second slider and is parallel to the first cylinder. The second clamping plate is connected to the piston rod of the second cylinder. The drive mechanism is used to rotate the first and second lead screw shafts.

4. The multi-directional binding device for conveying finished puffed explosive boxes according to claim 1, characterized in that, A first clamping device is provided at the first binding device, and a second clamping device is provided at the second binding device. The first and second clamping devices have the same structure. The first clamping device includes a first pressure plate and a second pressure plate, which are located on both sides of the first binding device. The first pressure plate is movably connected to the base in the vertical direction, and the second pressure plate is movably connected to the base in the vertical direction. A third cylinder and a fourth cylinder are provided on the base. The cylinder shafts of the third cylinder and the fourth cylinder are both in the vertical direction. The first pressure plate is connected to the piston rod of the third cylinder, and the second pressure plate is connected to the piston rod of the fourth cylinder.

5. The multi-directional strapping device for conveying finished puffed explosive boxes according to claim 2, characterized in that, A straightening device is installed at the first conveyor belt. The straightening device includes a fixed base, a rotating shaft, a first connecting rod, a second connecting rod, a third connecting rod, strip blocks, a track, a first connecting plate, a second connecting plate, a fifth cylinder, a sixth cylinder, a first straightening plate, and a second straightening plate. The fixed base is connected to the base and is located above the first conveyor belt. The rotating shaft is connected to the fixed base, and its axis is vertical. Two strip blocks are located on both sides of the rotating shaft, with the strip blocks parallel to the Y-axis. The track is connected to both ends of the strip blocks and is parallel to the strip blocks. The first connecting plate is connected to one end of the two strip blocks and is slidably connected to the track. The first connecting plate is parallel to the conveying direction of the conveying mechanism. The second connecting plate is connected to the other end of the two strip blocks and is slidably connected to the track. The first connecting rod... The middle part is rotatably connected to the rotating shaft. One end of the second connecting rod is pivotally connected to one end of the first connecting rod, and the other end of the second connecting rod is pivotally connected to the first connecting plate. One end of the third connecting rod is pivotally connected to the other end of the first connecting rod, and the other end of the third connecting rod is pivotally connected to the second connecting plate. The fifth cylinder is connected to the fixed seat and is located on the opposite side of the X direction of the fixed seat. One end of the first connecting plate is connected to the piston rod of the fifth cylinder. The sixth cylinder is connected to the fixed seat and is located on the X direction side of the fixed seat. The other end of the first connecting plate is connected to the piston rod of the sixth cylinder. The axes of the fifth cylinder and the sixth cylinder are both in the Y direction. The first straightening plate is connected to the first connecting plate, and the second straightening plate is connected to the second connecting plate. The first straightening plate and the second straightening plate are located on both sides of the Y direction of the first conveyor belt, respectively.

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