Transmission mechanism and sheet taking and placing device

Abstract

This utility model discloses a transmission mechanism and a sheet handling device, including a mounting plate, a movable arm slidingly engaged with the mounting plate, a roller assembly rotatably connected to the side wall of the movable arm, the axial direction of the roller assembly being perpendicular to the sliding direction of the movable arm, a drive assembly mounted on the mounting plate, the drive assembly having a power output end, a first synchronous belt fixed at one end to the inner end of the movable arm and at the other end to the outer end of the movable arm, the first synchronous belt winding from the inner end of the movable arm around the power output end of the drive assembly and the roller assembly, a crossbeam connected to the outer end of the movable arm, and the drive assembly capable of driving the movable arm and crossbeam to reciprocate. The first synchronous belt is fixed at one end to the inner end of the movable arm and at the other end to the outer end of the movable arm; the drive assembly drives the first synchronous belt to move, thus realizing the reciprocating sliding of the movable arm and crossbeam. The transmission mechanism is simple and has high transmission efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of solar cell manufacturing, and in particular relates to a transmission mechanism and a sheet loading and unloading device. Background Technology

[0002] Photovoltaic glass is an important component of photovoltaic modules. It encapsulates the core component of the photovoltaic module, the crystalline silicon wafer. Sunlight is transmitted through the photovoltaic glass onto the crystalline silicon wafer, where it is converted into electrical energy by the silicon wafer itself.

[0003] In the manufacturing process of photovoltaic modules, the initial incoming material consists of stacked photovoltaic glass on a pallet, with a paper separating the two pieces of photovoltaic glass. This requires removing the paper before supplying the photovoltaic glass to the conveyor line. The photovoltaic glass then flows to the next processing station via the conveyor line. The transmission efficiency and stability of the transmission mechanism used for picking up and placing the paper need to be improved. Utility Model Content

[0004] The main purpose of this utility model is to provide a transmission mechanism and sheet picking and placing device that can efficiently and stably pick and place sheets.

[0005] The above-mentioned objective of this utility model is achieved through the following technical solution: a transmission mechanism, including a mounting plate, a movable arm, a roller assembly, a drive component, a first synchronous belt, and a crossbeam, wherein the movable arm is slidably engaged with the mounting plate; the roller assembly is rotatably connected to the side wall of the movable arm, and the axial direction of the roller assembly is perpendicular to the sliding direction of the movable arm;

[0006] The drive assembly is mounted on the mounting plate and has a power output end.

[0007] One end of the first synchronous belt is fixed to the inner end of the moving arm and the other end is fixed to the outer end of the moving arm. The first synchronous belt is wound around the power output end of the drive assembly and the roller assembly from the inner end of the moving arm.

[0008] The crossbeam is connected to the outer end of the movable arm, and the drive assembly can drive the movable arm and the crossbeam to slide back and forth.

[0009] Furthermore, the drive assembly includes a drive wheel and a drive motor. The drive motor is fixed to the mounting plate, the drive wheel is rotatably connected to the mounting plate, and the shaft of the drive motor is connected to the drive wheel.

[0010] Furthermore, the roller assembly includes a first driven roller and a second driven roller, with the first driven roller being rotatably connected to the side wall of the moving arm;

[0011] The second driven wheel is rotatably connected to the side wall of the moving arm, and the second driven wheel and the first driven wheel are respectively located on both sides of the driving wheel axis;

[0012] The first synchronous belt is sequentially wound around the first driven wheel, the driving wheel, and the second driven wheel from the inner end of the moving arm. The first synchronous belt can drive the moving arm to reciprocate.

[0013] Furthermore, the transmission mechanism also includes a first pulley, a second pulley, and a second synchronous belt. The first pulley is rotatably connected to the inner end of the moving arm; the second pulley is rotatably connected to the outer end of the moving arm. The first pulley and the second pulley are located on the inner arm surface of the same side of the moving arm, and the axial directions of the first pulley and the second pulley are parallel to the axial direction of the drive wheel.

[0014] The second synchronous belt is wound around the first pulley and the second pulley. The upper body of the second synchronous belt is fixed to the mounting plate, and the lower body of the second synchronous belt is fixed to the crossbeam. The lower body drives the crossbeam to move, and the direction of movement is the same as the direction of movement of the moving arm.

[0015] Furthermore, the transmission mechanism also includes a first guide rail and a second guide rail. The two first guide rails are fixed to the top of the moving arm, and the two first guide rails are parallel to each other and their length direction is consistent with the arm length direction of the moving arm.

[0016] Two second guide rails are fixed to the bottom of the movable arm. The two second guide rails are parallel to each other and their length direction is consistent with the arm length direction of the movable arm. The slider at the bottom of the mounting plate is slidably connected to the first guide rail at the top of the movable arm, and the slider at the top of the crossbeam is slidably connected to the second guide rail at the bottom of the movable arm.

[0017] Furthermore, the transmission mechanism also includes a vertical guide rail, a second column, and a lifting motor, with the vertical guide rail fixed to the frame;

[0018] The bottom of the second column is fixed to the mounting plate, the back of the second column is fixed to the slider, the second column slides with the vertical guide rail, and the second rack is fixed to the side of the second column.

[0019] The lifting motor is fixed to the frame, and the drive shaft of the lifting motor meshes with the second rack on the side of the second column for transmission.

[0020] This utility model also provides a sheet material picking and placing device, including a first clamping unit and the aforementioned transmission mechanism. The first clamping unit includes a movable clamping block, a fixed clamping block and a power component. The movable clamping block includes a first bottom surface and a first clamping surface. The first bottom surface of the movable clamping block can press the sheet material to be picked up, and the angle between the first bottom surface and the first clamping surface is an acute angle.

[0021] The fixed clamping block includes a second bottom surface and a second clamping surface. The second bottom surface can press the sheet to be removed. The second clamping surface is parallel to the first clamping surface of the movable clamping block. The fixed clamping block and the movable clamping block are spaced apart, which is the first position. The second position is when the second clamping surface of the fixed clamping block is in contact with the first clamping surface of the movable clamping block.

[0022] The power component is mounted on the crossbeam of the transmission mechanism. The power component is connected to the movable clamping block and the fixed clamping block respectively. The power component can drive the movable clamping block to move from the first position to the second position.

[0023] Furthermore, the sheet handling device also includes a second clamping unit, which is arranged at intervals with the first clamping unit along the width direction of the sheet to be handled. The second clamping unit has the same structure as the first clamping unit, and the first clamping surfaces of the movable clamping blocks of the first clamping unit and the second clamping unit are located on the same surface.

[0024] Furthermore, the sheet handling device also includes a third clamping unit, which is arranged at intervals from the first clamping unit along the length direction of the sheet to be handled;

[0025] The third clamping unit has the same structure as the first clamping unit, and the fixed clamping blocks of the first and third clamping units are located between the movable clamping blocks of the first and third clamping units.

[0026] Furthermore, the power component is a cylinder, and the cylinder body is fixed to the bottom surface of the crossbeam; the first clamping unit also includes a first telescopic component and a second telescopic component. The first telescopic component is fixed to the bottom surface of the cylinder body, and the first telescopic rod of the first telescopic component is connected to the top surface of the fixed clamping block. A spring is sleeved on the first telescopic rod.

[0027] The second telescopic assembly is fixed to the piston rod of the cylinder; the lower end of the second telescopic rod of the second telescopic assembly is fixed to the movable clamping block, and a spring is sleeved on the second telescopic rod.

[0028] Compared with the prior art, the beneficial effects of this utility model are as follows: one end of the first synchronous belt is fixed to the inner end of the moving arm and the other end is fixed to the outer end of the moving arm. The drive component drives the first synchronous belt to move, which can realize the reciprocating sliding of the moving arm and the crossbeam. The transmission mechanism is simple and the transmission efficiency is high. Attached Figure Description

[0029] Figure 1 This is a perspective view of the picking and placing device in the picking position according to an embodiment of the present invention;

[0030] Figure 2 This is a diagram illustrating the process of the pick-and-place device moving the sheet material from the clamping device to the placement position in one embodiment of the present invention.

[0031] Figure 3 This is a perspective view of the loading and unloading device in the unloading position according to an embodiment of the present invention;

[0032] Figure 4 This is a side view of the first clamping unit before it clamps the sheet in one embodiment of the present invention;

[0033] Figure 5This is a side view of the first clamping unit after it has clamped and raised the sheet in one embodiment of the present invention;

[0034] Figure 6 This is a perspective view of the loading and unloading device in the unloading position according to another embodiment of the present invention;

[0035] Figure 7 This is a side view of the first and third clamping units after they have clamped and raised the sheet material in another embodiment of the present invention;

[0036] Figure 8 This is a top view of the pick-and-place device in one embodiment of the present invention;

[0037] Figure 9 for Figure 8 C-axis sectional view;

[0038] Figure 10 for Figure 8 Sectional view along the DD direction;

[0039] Figure 11 This is a perspective view of the two sheet handling devices of this utility model arranged on the frame. Detailed Implementation

[0040] This utility model provides a sheet handling device, such as... Figures 1-11 As shown.

[0041] The sheet material of this utility model can be flexible sheet material such as paper, plastic film, cloth, metal foil, etc. The specific type of sheet material is not limited. The following description only uses paper as an example of sheet material.

[0042] A transmission mechanism includes a mounting plate 11, a movable arm 20, a roller assembly, a drive assembly, a first synchronous belt 45, and a crossbeam 33, wherein the movable arm 20 is slidably engaged with the mounting plate 11.

[0043] The roller assembly is rotatably connected to the side wall of the movable arm 20, and the axial direction of the roller assembly is perpendicular to the sliding direction of the movable arm 20.

[0044] The drive assembly is mounted on the mounting plate 11 and has a power output end.

[0045] One end of the first synchronous belt 45 is fixed to the inner end of the movable arm 20 and the other end is fixed to the outer end of the movable arm 20. The first synchronous belt 45 is wound around the power output end of the drive assembly and the roller assembly from the inner end of the movable arm 20.

[0046] The crossbeam 33 is connected to the outer end of the movable arm 20, and the drive assembly can drive the movable arm 20 and the crossbeam 33 to slide back and forth.

[0047] The first synchronous belt 45 of this utility model is fixed at one end to the inner end of the moving arm 20 and at the other end to the outer end of the moving arm 20. The drive assembly drives the first synchronous belt 45 to move, which can realize the reciprocating sliding of the moving arm 20 and the crossbeam 33. The transmission mechanism is simple and has high transmission efficiency.

[0048] The first synchronous belt 45 has a toothed surface on one side. The first synchronous belt 45 cooperates with the roller assembly to ensure precise control of the movement of the crossbeam 33.

[0049] like Figure 8 and 9 As shown, the drive assembly includes a drive motor 41 and a drive wheel 42. The drive motor 41 is fixed on the mounting plate 11, and the drive wheel 42 is rotatably connected to the mounting plate 11. The shaft of the drive motor 41 is connected to the drive wheel 42.

[0050] The roller assembly includes a first driven roller 43, a second driven roller 44, and a first synchronous belt 45. The first driven roller 43 is rotatably connected to the side wall of the moving arm 20; the second driven roller 44 is rotatably connected to the side wall of the moving arm 20, and the second driven roller 44 and the first driven roller 43 are respectively located on both sides of the driving roller 42 axially.

[0051] The first synchronous belt 45 is sequentially wound around the first driven wheel 43, the driving wheel 42, and the second driven wheel 44 from the inner end of the moving arm 20. The first synchronous belt 45 can drive the moving arm 20 to reciprocate.

[0052] The aforementioned first synchronous belt 45 and roller assembly constitute the first set of pulley transmission system. The first synchronous belt 45 and roller assembly are located on the inner wall of one side of the movable arm 20. This utility model additionally provides a second set of pulley system, which is located on the inner wall of the other side of the movable arm 20, as detailed below.

[0053] The transmission mechanism also includes a first pulley 51, a second pulley 52, and a second synchronous belt 53. The first pulley 51 is rotatably connected to the inner end of the movable arm 20; the second pulley 52 is rotatably connected to the outer end of the movable arm 20. The first pulley 51 and the second pulley 52 are located on the inner arm surface of the movable arm 20 on the same side, and the axial directions of the first pulley 51 and the second pulley 52 are parallel to the axial direction of the drive wheel 42.

[0054] like Figure 8 and 10 As shown, the second synchronous belt 53 is wound around the first pulley 51 and the second pulley 52. ​​The upper belt body 531 of the second synchronous belt 53 is fixed to the mounting plate 11, and the lower belt body 532 of the second synchronous belt 53 is fixed to the crossbeam 33. The lower belt body 532 drives the crossbeam 33 to move, and the moving direction is consistent with the moving direction of the moving arm 20.

[0055] like Figure 9As shown, when the first synchronous belt 45 drives the moving arm 20 to slide to the left along the M1 direction, that is, when the moving arm 20 slides relative to the mounting plate 11, since the upper belt body 531 of the second synchronous belt 53 is fixed to the mounting plate 11, as Figure 10 As shown, the lower band 532 will move to the left along the M1 direction.

[0056] In short, such as Figure 9 As shown, the first synchronous belt 45 drives the moving arm 20 and the crossbeam 33 to move to the left along M1 at a speed V, while... Figure 10 As shown, the second synchronous belt 53 drives the crossbeam 33 to move to the left along M1 at a speed V. Compared with the transmission speed V of the first set of pulley transmission system, the second synchronous belt 53 additionally provided in this utility model enables the crossbeam 33 to move at a speed of 2V.

[0057] The transmission mechanism also includes a first guide rail 21 and a second guide rail 22. The two first guide rails 21 are fixed to the top of the moving arm 20. The two first guide rails 21 are parallel to each other and their length direction is consistent with the arm length direction of the moving arm 20.

[0058] Two second guide rails 22 are fixed to the bottom of the movable arm 20. The two second guide rails 22 are parallel to each other and their length direction is consistent with the arm length direction of the movable arm 20.

[0059] The slider at the bottom of the mounting plate 11 is slidably connected to the first guide rail 21 at the top of the movable arm 20, and the slider at the top of the crossbeam 33 is slidably connected to the second guide rail 22 at the bottom of the movable arm 20. With the first guide rail 21 and the second guide rail 22 arranged at the top and bottom of the movable arm 20 respectively, the transmission mechanism of this utility model is more compact.

[0060] In order to achieve synchronous lifting of the mounting plate 11 and the moving arm 20, the transmission mechanism of this utility model also includes a vertical guide rail 61, a second column 62, a second rack 63 and a lifting motor 64. The vertical guide rail 61 is fixed to the frame 1.

[0061] The bottom end of the second column 62 is fixed to the mounting plate 11, the back of the second column 62 is fixed to the slider, the second column 62 is slidably engaged with the vertical guide rail 61, and the second rack 63 is fixed to the side of the second column 62.

[0062] The lifting motor 64 is fixed to the frame 1, and the drive shaft of the lifting motor 64 meshes with the second rack 63 on the side of the second column 62 for transmission.

[0063] like Figure 1-5 As shown, the present invention also provides a sheet material handling device 100, including a first clamping unit 30a and the aforementioned transmission mechanism. The first clamping unit 30a includes a movable clamping block 31, a fixed clamping block 32 and a power component 34.

[0064] The movable clamping block 31 includes a first bottom surface 311 and a first clamping surface 312. The first bottom surface 311 of the movable clamping block 31 can press the paper A. The angle θ between the first bottom surface 311 and the first clamping surface 312 is an acute angle.

[0065] The fixed clamping block 32 includes a second bottom surface 321 and a second clamping surface 322. The second bottom surface 321 can press the paper A. The second clamping surface 322 is parallel to the first clamping surface 312 of the movable clamping block 31. The fixed clamping block 32 is in a first position when it is spaced apart from the movable clamping block 31. The second position is when the second clamping surface 322 of the fixed clamping block 32 is in contact with the first clamping surface 312 of the movable clamping block 31.

[0066] The power component 34 is mounted on the crossbeam 33 and is connected to the movable clamping block 31. The power component 34 can drive the movable clamping block 31 to move from the first position to the second position.

[0067] The first clamping unit 30a of this utility model sets the angle θ between the first bottom surface 311 and the first clamping surface 312 of the movable clamping block 31 to an acute angle, specifically 10°≤θ≤80°. The second clamping surface 322 of the fixed clamping block 32 is parallel to the first clamping surface 312 of the movable clamping block 31. In this way, after the movable clamping block 31 and the fixed clamping block 32 clamp the paper, the lifting mechanism drives the mounting plate 11 and the first clamping unit 30a to rise synchronously, and the short side of the paper can be bent inward. The paper includes a horizontal part A1 and a bent part A2.

[0068] Compared to the initial length of the paper, the length of the paper after clamping is reduced by more than 30%, which can shorten the paper picking and placing stroke, meet the high-speed production cycle, and improve production efficiency.

[0069] Since the short side of paper A can be bent inward, the first clamping unit 30a moves to the feeding position 402 to release paper A. The horizontal part A1 and the bent part A2 overlap together, so that paper A can be laid flat on the feeding position 402 on the paper feeding trolley. This avoids the paper being unevenly placed and occupying a lot of vertical height. The solution provided by this utility model can place more paper in the same vertical space and reduce the frequency of cleaning paper on the paper feeding trolley.

[0070] In addition, such as Figure 5As shown, since the first clamping surface 312 of the movable clamping block 31 is an inclined surface, during the process of clamping the paper, the driving component drives the movable clamping block 31 to move quickly and press against the second clamping surface 322 of the fixed clamping block 32. After the pressure F on the fixed clamping block 32 is decomposed, it includes a vertically upward component F1 and a horizontally rightward component F2. The horizontally rightward component F2 is smaller, so the bending moment of F2 acting on the telescopic rod 351 of the fixed clamping block 32 is small. Similarly, the bending moment of the telescopic rod of the movable clamping block 31 is also small, avoiding deformation of the telescopic rod connected to the two clamping blocks. The solution provided by this utility model can extend the service life of the first clamping unit 30a and reduce the replacement cycle of vulnerable parts.

[0071] Specifically, the angle between the first bottom surface 311 and the first clamping surface 312 of the movable clamping block 31 is θ, and the length of the paper A is L1.

[0072] When the pick-and-place device includes the first and third clamping units, when the movable clamping block 31 of the first and third clamping units is located at the pick-up position 401, the minimum distance between the movable clamping block 31 and the short side of the paper is L2, which satisfies 1 / 10≤L2 / L1≤1 / 2 and 10°≤θ≤80°.

[0073] See Figure 1-3 The pick-and-place device also includes a second clamping unit 30b. The second clamping unit 30b and the first clamping unit 30a are arranged at intervals along the width direction M2 of the paper A. The second clamping unit 30b has the same structure as the first clamping unit 30a. The first clamping surfaces 312 of the movable clamping blocks 31 of the first clamping unit and the second clamping unit are located on the same surface.

[0074] In the above embodiment, there can be two second clamping units 30b, so the pick-and-place device includes three clamping units arranged at intervals M2 along the paper width direction, ensuring that the paper can be stably clamped and bent to the designed angle. Alternatively, more than three second clamping units 30b can be provided. This ensures that the paper can be stably clamped and bent to the designed angle.

[0075] See Figure 6 In another embodiment of the present invention, the picking and placing device further includes a third clamping unit 30c, which is arranged at intervals with the first clamping unit 30a along the length direction M1 of the paper A.

[0076] The third clamping unit 30c has the same structure as the first clamping unit 30a. The fixed clamping block 32 of the first and third clamping units is located between the movable clamping block 31 of the first and third clamping units.

[0077] like Figure 7 As shown, the first and third clamping units can clamp the short side of the paper and bend it inward, respectively. The paper includes a bending part A2, a horizontal part A1, and a bending part A2 in sequence.

[0078] Since the fixed clamping blocks 32 of the first and third clamping units press against the paper surface, this utility model sets the fixed clamping blocks 32 of the first and third clamping units between the movable clamping blocks 31 of the first and third clamping units. In this way, the movable clamping blocks 31 of the first and third clamping units can rub the paper respectively. The movable clamping block 31 of the first clamping unit 30a bends the free side of the right side of the paper inward, and the movable clamping block 31 of the third clamping unit 30c bends the free side of the left side of the paper inward.

[0079] Compared to the initial length of the paper, the first and third clamping units of this invention reduce the length of the paper by more than 50% after clamping, significantly shortening the paper handling process and further improving the production cycle time.

[0080] When the pick-and-place device includes first and third clamping units 30a and 30c, when the movable clamping block 31 of the first clamping unit 30a is located at the pick-up position 401, the minimum distance between the movable clamping block 31 of the first clamping unit 30a and the short side of the paper is L2, and the minimum distance between the movable clamping block 31 of the third clamping unit 30c and the short side of the paper is L3, satisfying 1 / 10≤L2 / L1≤1 / 3, 1 / 10≤L3 / L1≤1 / 3, and 10°≤θ≤80°.

[0081] The angle θ between the first bottom surface 311 and the first clamping surface 312 of the movable clamping block 31 can be 20°, 30°, 40°, 50°, 60°, or 70°.

[0082] The first bottom surface 311 of the movable clamping block 31 of this utility model forms an angle θ of 30° with the first clamping surface 312, resulting in a better bending state of the paper and a smaller bending moment on the telescopic rod connected to the fixed clamping block 32 and the movable clamping block 31.

[0083] The power component 34 of the picking and placing device of this utility model is a cylinder, and the cylinder body is fixed to the bottom surface of the crossbeam 33.

[0084] The first clamping unit 30a also includes a first telescopic component 35 and a second telescopic component 36. The first telescopic component 35 is fixed to the bottom surface of the cylinder body. The first telescopic rod of the first telescopic component 35 is connected to the top surface of the fixed clamping block 32. A spring is sleeved on the first telescopic rod.

[0085] The second telescopic component 36 is fixed to the piston rod of the cylinder; the lower end of the second telescopic rod of the second telescopic component 36 is fixed to the movable clamping block 31, and a spring is sleeved on the second telescopic rod.

[0086] The fixed clamping block 32 and the movable clamping block 31 of the first clamping unit 30a can float and press the paper A on the glass B, avoiding impact on the glass B and causing damage to the glass B.

[0087] One embodiment of this utility model provides a paper-taking method based on the aforementioned paper-taking and placing device 100, comprising the following steps:

[0088] S10: As Figure 1 As shown, the first clamping unit 30a is located at the material picking position 401. The lifting mechanism drives the mounting plate 11, the moving arm 20 and the first clamping unit 30a to descend synchronously. The bottom surfaces of the movable clamping block 31 and the fixed clamping block 32 of the first clamping unit 30a press against the paper surface of the paper A, that is, the paper A is pressed onto the glass B to be picked up by the movable clamping block 31 and the fixed clamping block 32.

[0089] S20: The power component 34 drives the movable clamping block 31 to move closer to the fixed clamping block 32, and the first clamping surface 312 of the movable clamping block 31 clamps the paper A with the second clamping surface 322 of the fixed clamping block 32.

[0090] S30: The lifting mechanism drives the movable clamping block 31, the fixed clamping block 32 and the paper A to rise, and the part of the paper A that is rubbed by the movable clamping block 31 bends towards the side where the fixed clamping block 32 is located.

[0091] like Figure 2 As shown, the moving arm 20 drives the first clamping unit 30a and the paper A to slide towards the feeding position 402.

[0092] S40: As Figure 3 As shown, the moving arm 20 drives the first clamping unit 30a to slide to the feeding position 402, and the power component 34 drives the movable clamping block 31 away from the fixed clamping block 32, so that the paper A falls to the feeding position 402.

[0093] S50: The moving arm 20 drives the first clamping unit 30a to slide to the material picking position 401, and repeats S10.

[0094] An embodiment of this utility model provides a paper-taking method based on the aforementioned paper-taking device 100. The paper-taking device 100 includes a first clamping unit 30a, a second clamping unit 30b, and a third clamping unit 30c. The second clamping unit and the third clamping unit have the same structure as the first clamping unit 30a. The paper-taking method steps are as follows.

[0095] S11: The first clamping unit 30a, the second clamping unit 30b, and the third clamping unit 30c are located at the material picking position 401. The lifting mechanism drives the mounting plate 11, the moving arm 20, and the first clamping unit 30a, the second clamping unit 30b, and the third clamping unit 30c to descend synchronously. The bottom surfaces of the movable clamping block 31 and the fixed clamping block 32 of the first clamping unit 30a, the second clamping unit 30b, and the third clamping unit 30c press against the paper surface of the paper A. That is, the paper A is pressed onto the glass B to be picked up by the movable clamping block 31 and the fixed clamping block 32.

[0096] S21: The power unit 34 drives the movable clamping block 31 to move closer to the fixed clamping block 32. The first clamping surface 312 of the movable clamping block 31 of the first clamping unit 30a and the second clamping surface 322 of the fixed clamping block 32 clamp the paper A. The first clamping surface 312 of the movable clamping block 31 of the third clamping unit 30c clamps the paper A with the second clamping surface 322 of the fixed clamping block 32.

[0097] S31: The lifting mechanism drives the movable clamping block 31, the fixed clamping block 32, and the paper A to rise, such as Figure 5 As shown, the movable clamping blocks 31 of the first clamping unit 30a and the second clamping unit 30b rub one side of the paper A and bend it inward, while the movable clamping block 31 of the third clamping unit 30c rubs the other side of the paper A and bends it inward.

[0098] S41: As Figure 6 As shown, the moving arm 20 drives the first clamping unit 30a, the second clamping unit 30b, and the third clamping unit 30c to slide to the feeding position 402, and the power component 34 drives the movable clamping block 31 away from the fixed clamping block 32, so that the paper A falls to the feeding position 402.

[0099] S51: The moving arm 20 drives the first clamping unit 30a, the second clamping unit 30b, and the third clamping unit 30c to slide to the material picking position 401, and repeats S11.

[0100] The above are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A transmission mechanism, characterized by, include: Mounting plate; A movable arm that slides in conjunction with the mounting plate; A roller assembly is rotatably connected to the side wall of the movable arm, and the axial direction of the roller assembly is perpendicular to the sliding direction of the movable arm. A drive assembly, which is mounted on a mounting plate, has a power output end; The first synchronous belt has one end fixed to the inner end of the moving arm and the other end fixed to the outer end of the moving arm. The first synchronous belt is wound around the power output end of the drive assembly and the roller assembly from the inner end of the moving arm. A crossbeam is connected to the outer end of a movable arm, and the drive assembly is capable of driving the movable arm and the crossbeam to slide back and forth.

2. The transmission mechanism of claim 1, wherein The drive assembly includes a drive wheel and a drive motor. The drive motor is fixed to the mounting plate, the drive wheel is rotatably connected to the mounting plate, and the shaft of the drive motor is connected to the drive wheel.

3. The transmission mechanism of claim 2, wherein The roller assembly includes: The first driven wheel is rotatably connected to the side wall of the moving arm; The second driven wheel is rotatably connected to the side wall of the moving arm, and the second driven wheel and the first driven wheel are respectively located on both sides of the axial direction of the driving wheel; The first synchronous belt is sequentially wound around the first driven wheel, the driving wheel, and the second driven wheel from the inner end of the moving arm, and the first synchronous belt can drive the moving arm to reciprocate.

4. A transmission mechanism according to claim 2 or 3, characterised in that, Also includes: The first pulley is rotatably connected to the inner end of the moving arm; The second pulley is rotatably connected to the outer end of the moving arm. The first pulley and the second pulley are located on the inner arm surface of the moving arm on the same side. The axial directions of the first pulley and the second pulley are parallel to the axial direction of the drive wheel. A second synchronous belt is wound around the first pulley and the second pulley. The upper part of the second synchronous belt is fixed to the mounting plate, and the lower part of the second synchronous belt is fixed to the crossbeam. The lower part drives the crossbeam to move in the same direction as the movement direction of the moving arm.

5. The transmission mechanism of claim 4, wherein Also includes: Two first guide rails are fixed to the top of the movable arm. The two first guide rails are parallel to each other and their length direction is consistent with the arm length direction of the movable arm. Two second guide rails are fixed to the bottom of the movable arm. The two second guide rails are parallel to each other and their length direction is consistent with the arm length direction of the movable arm. The slider at the bottom of the mounting plate is slidably connected to the first guide rail at the top of the moving arm, and the slider at the top of the crossbeam is slidably connected to the second guide rail at the bottom of the moving arm.

6. A transmission mechanism according to claim 2 or 3, characterised in that, Also includes: Vertical guide rails, which are fixed to the frame; The second column has its bottom end fixed to the mounting plate, a slider fixed to the back of the second column, the second column slidingly engaging with the vertical guide rail, and a second rack fixed to the side of the second column. The lifting motor is fixed to the frame, and the drive shaft of the lifting motor meshes with the second rack on the side of the second column for transmission.

7. A sheet pick-and-place device characterized by comprising: The first clamping unit includes a first clamping unit and a transmission mechanism as described in any one of claims 1-6, wherein the first clamping unit includes: The movable clamping block includes a first bottom surface and a first clamping surface. The first bottom surface of the movable clamping block can press the sheet to be removed, and the angle between the first bottom surface and the first clamping surface is an acute angle. The fixed clamping block includes a second bottom surface and a second clamping surface. The second bottom surface can press the sheet to be removed. The second clamping surface is parallel to the first clamping surface of the movable clamping block. The fixed clamping block and the movable clamping block are spaced apart in a first position. The second position is when the second clamping surface of the fixed clamping block is in contact with the first clamping surface of the movable clamping block. A power component is disposed on the crossbeam of the transmission mechanism. The power component is connected to the movable clamping block and the fixed clamping block respectively. The power component can drive the movable clamping block to move from the first position to the second position.

8. The sheet handling apparatus according to claim 7, wherein It also includes a second clamping unit, which is arranged at intervals with the first clamping unit along the width direction of the sheet to be removed. The second clamping unit has the same structure as the first clamping unit, and the first clamping surfaces of the movable clamping blocks of the first clamping unit and the second clamping unit are located on the same surface.

9. The sheet handling device according to claim 7 or 8, characterized in that It also includes a third clamping unit, which is arranged at intervals from the first clamping unit along the length direction of the sheet to be removed; The third clamping unit has the same structure as the first clamping unit, and the fixed clamping blocks of the first and third clamping units are located between the movable clamping blocks of the first and third clamping units.

10. The sheet handling apparatus according to claim 9, wherein The power component is a cylinder, and the cylinder body is fixed to the bottom surface of the crossbeam; The first clamping unit further includes a first telescopic component and a second telescopic component. The first telescopic component is fixed to the bottom surface of the cylinder body of the cylinder. The first telescopic rod of the first telescopic component is connected to the top surface of the fixed clamping block. A spring is sleeved on the first telescopic rod. The second telescopic assembly is fixed to the piston rod of the cylinder; the lower end of the second telescopic rod of the second telescopic assembly is fixed to the movable clamping block, and a spring is sleeved on the second telescopic rod.

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