A sheet material flying device

Abstract

This utility model discloses a sheet feeder device, including a hopper, a peeling platform, a traction mechanism, a picking mechanism, and a discharging mechanism. The hopper supplies sheet material, which includes a backing paper and materials adhered to the backing paper. The traction mechanism includes a front-end pulling assembly and a rear-end pulling assembly. The rear-end pulling assembly includes a rear-end pulling clamp and a rear-end pulling drive mechanism. The front-end pulling assembly includes a front-end pulling seat, a front-end pulling clamp, and a front-end pulling drive mechanism. The front-end pulling clamp is movably mounted on the front-end pulling seat, and the front-end pulling seat is provided with an elastic reset mechanism that ensures the front-end pulling clamp always tends to move away from the discharging mechanism. This utility model can avoid insufficient tension or severe deformation caused by asynchronous movement of the front-end and rear-end pulling assemblies, thus improving the sheet peeling quality and efficiency.

Description

Technical Field

[0001] This utility model relates to the field of chip mounting equipment technology, specifically to a chip feeder device. Background Technology

[0002] Feeders, also known as material feeders or feeders, are primarily used to supply materials to pick-and-place machines for placement. The materials supplied by the feeder are typically adhered to a soft, smooth backing paper and wound up to form a tape for transport and storage. However, for certain materials that cannot be bent or wound into rolls, they must be cut into sheet pieces for packaging and transport; these are called sheet materials.

[0003] Chinese invention patent CN117049170B discloses a sheet feeder, which includes a hopper, a peeling platform, a traction mechanism, a picking mechanism, and a discharging mechanism. The hopper supplies sheet material, which includes a backing paper and material adhered to the backing paper. The picking mechanism transports the sheet material from the hopper to the peeling platform. The traction mechanism includes a front-end pulling component and a rear-end pressing component. The rear-end pressing component presses the rear end of the backing paper against the peeling platform, while the front-end pulling component clamps the front end of the backing paper and pulls it downwards towards the peeling platform to work with the rear-end pressing component to tension the backing paper. The front-end pulling component and the rear-end pressing component drive the backing paper to move synchronously relative to the peeling platform, and work with the peeling platform to peel the material off the backing paper. This patented solution requires the front-end pulling component and the rear-end pressing component to move synchronously to maintain stable tension in the sheet material, which is difficult to control and results in unstable sheet peeling performance. Utility Model Content

[0004] This invention addresses the shortcomings of existing technologies by providing a sheet feeder device that reduces control difficulty, maintains stable tension in the sheet during peeling, and improves peeling efficiency.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A sheet feeder device includes a hopper, a peeling platform, a traction mechanism, a picking mechanism, and a discharging mechanism. The hopper supplies sheet material, which includes a backing paper and materials adhering to the backing paper. The picking mechanism transports the sheet material from the hopper to the peeling platform. The discharging mechanism receives the material whose backing paper has been peeled off. The traction mechanism includes a front-end pulling assembly and a rear-end pulling assembly. The rear-end pulling assembly includes a rear-end pulling clamp and a rear-end pulling drive mechanism that drives the rear-end pulling clamp to move back and forth. The front-end pulling assembly includes a front-end pulling seat, a front-end pulling clamp, and a front-end pulling drive mechanism that drives the front-end pulling seat to move back and forth. The front-end pulling clamp is movably mounted on the front-end pulling seat, and the front-end pulling seat is provided with an elastic reset mechanism that ensures the front-end pulling clamp always tends to move away from the discharging mechanism. This invention features an elastic reset mechanism on the front-end material pulling seat that ensures the material pulling clamp always tends to move away from the material discharging mechanism. This mechanism maintains stable tension on the backing paper during the conveying of sheet material by the front-end and rear-end material pulling assemblies, preventing insufficient tension or severe deformation due to asynchronous movement between the front-end and rear-end material pulling assemblies, thus improving the quality and efficiency of sheet material peeling.

[0007] As a preferred technical solution, the front-end material pulling clamp includes a clamping seat, a first clamping cylinder, and a first clamping plate whose movement is controlled by the first clamping cylinder. The clamping seat is slidably installed on the front-end material pulling seat, the first clamping cylinder is installed on the clamping seat, and one end of the clamping seat is provided with a first clamping surface that cooperates with the first clamping plate to clamp the front end of the bottom paper.

[0008] As a preferred technical solution, the surface of the front-end material pulling seat is provided with a movable groove, and a third slide rail is provided in the movable groove. The clamp is slidably connected to the third slide rail through a slider.

[0009] As a preferred technical solution, the elastic reset mechanism is a compression spring. A positioning rod is fixedly provided on the clamp, and the axial direction of the positioning rod is parallel to the extension direction of the third slide rail. The front end pull seat is provided with a receiving hole corresponding to the positioning rod. The receiving hole penetrates one end face of the front end pull seat and one side wall of the movable groove. The free end of the positioning rod passes through the receiving hole. The compression spring is provided in the receiving hole and sleeved on the outside of the positioning rod. The free end of the positioning rod is provided with a baffle. One end of the compression spring abuts against the inner wall of the receiving hole, and the other end abuts against the baffle.

[0010] As a preferred technical solution, the lower side of the stripping platform is provided with a first slide rail, the front-end material pulling seat is slidably connected to the first slide rail through a slider, the front-end material pulling drive mechanism is a first material pulling motor, the output end of the first material pulling motor is provided with a first synchronous belt parallel to the first slide rail, and the front-end material pulling seat is fixedly connected to one side of the first synchronous belt through a first toothed plate.

[0011] As a preferred technical solution, the rear-end material pulling clamp includes a rear-end material pulling seat, a second clamping cylinder, and a second clamping plate whose movement is controlled by the second clamping cylinder. The upper side of the peeling platform is provided with a second slide rail. The rear-end material pulling seat is slidably connected to the second slide rail via a slider. The second clamping cylinder and the second clamping plate are both mounted on the rear-end material pulling seat. One end of the rear-end material pulling seat is provided with a second clamping surface that cooperates with the second clamping plate to clamp the rear end of the bottom paper. The rear-end material pulling drive mechanism is a second material pulling motor. The output end of the second material pulling motor is provided with a second synchronous belt parallel to the second slide rail. The rear-end material pulling seat is fixedly connected to one side of the second synchronous belt via a second toothed plate.

[0012] As a preferred technical solution, it also includes an installation frame, with the peeling platform located at the upper end of the installation frame. The discharge mechanism and the hopper are respectively located on the front and rear sides of the peeling platform. The peeling platform is provided with a peeling blade and a clearance cylinder for controlling the back-and-forth movement of the peeling blade at one end near the discharge mechanism. The discharge mechanism is provided with a bending plate for bending the bottom paper downwards on one side near the peeling platform.

[0013] As a preferred technical solution, the discharge mechanism includes a discharge bracket, a discharge cylinder, a discharge platform, and an anti-stick plate. The discharge bracket is fixedly mounted on the mounting frame, the discharge cylinder is fixedly mounted on the discharge bracket, the discharge platform is located at the drive end of the discharge cylinder and can be driven to move up and down by the discharge cylinder, the anti-stick plate is fixedly mounted on the discharge platform, the anti-stick plate is located on the side of the discharge mechanism near the peeling platform, and the discharge platform is provided with a sensor for detecting whether the material on the anti-stick plate is in place.

[0014] As a preferred technical solution, the discharge mechanism further includes a stripping and pressing assembly. The stripping and pressing assembly includes a first pressing plate and a first pressing cylinder to prevent material deviation during stripping. The first pressing cylinder is fixed on the mounting frame. The drive end of the first pressing cylinder extends upward and is connected to a drive seat. The first pressing plate is fixedly connected to the drive seat. During operation, the first pressing plate presses on the sheet material on the stripping blade.

[0015] As a preferred technical solution, the discharge mechanism further includes a discharge pressing assembly. The discharge pressing assembly includes a second pressing plate and a second pressing cylinder to prevent material displacement during discharge. The drive end of the discharge cylinder is provided with a discharge slide. The discharge platform is fixedly installed on the upper end of the discharge slide. The second pressing cylinder is fixedly installed on the side of the discharge slide. The drive end of the second pressing cylinder is fixedly provided with a displacement cylinder. The second pressing plate is fixedly connected to the drive end of the displacement cylinder and its movement can be controlled by the displacement cylinder.

[0016] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, by setting an elastic reset mechanism on the front-end material pulling seat, which makes the material pulling clamp always tend to move away from the material discharging mechanism, the front-end material pulling assembly and the rear-end material pulling assembly maintain a stable tension of the bottom paper through the elastic reset mechanism when conveying the sheet material. This avoids the situation where the front-end material pulling assembly and the rear-end material pulling assembly have insufficient tension or serious deformation due to asynchronous movement, thereby improving the sheet material peeling quality and efficiency.

[0017] To more clearly illustrate the structural features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments: Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the assembly structure of an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the assembly structure from another perspective of an embodiment of this utility model;

[0020] Figure 3 This is an overall exploded structural diagram of an embodiment of the present utility model;

[0021] Figure 4 This is a schematic diagram of the installation structure of the front-pull assembly according to an embodiment of the present invention;

[0022] Figure 5 This is an exploded structural diagram of the front-pull assembly according to an embodiment of the present invention;

[0023] Figure 6 This is a schematic diagram of the assembly structure of the rear material pulling component according to an embodiment of the present utility model;

[0024] Figure 7 yes Figure 3 Enlarged view of point A in the middle;

[0025] Figure 8 This is a schematic diagram of the discharge mechanism according to an embodiment of the present utility model.

[0026] Explanation of reference numerals in the attached diagram:

[0027] 10. Mounting bracket; 11. Bottom paper discharge port; 12. Bottom paper discharge slot

[0028] 20. Hopper; 30. Stripping platform; 31. Stripping blade

[0029] 32. Yielding cylinder; 33. Bending plate; 34. First slide rail

[0030] 35. Second slide rail; 40. Material handling mechanism; 50. Material discharge mechanism

[0031] 51. Discharge support; 52. Discharge cylinder; 521. Discharge slide.

[0032] 53. Discharge platform 54. Anti-stick plate 55. Peeling and pressing assembly

[0033] 551. First pressing cylinder; 552. Drive base; 553. First pressing plate

[0034] 554. Adjusting screw; 56. Discharge pressing assembly; 561. Second pressing cylinder

[0035] 562. Shifting cylinder; 563. Second pressure plate; 57. Sensor

[0036] 60. Sheet material; 61. Base paper; 62. Materials

[0037] 70. Front-end material pulling assembly; 71. First material pulling motor; 72. First synchronous belt

[0038] 73. Front-end material puller 731. Movable groove 732. Third slide rail

[0039] 733, receiving hole 734, first toothed plate 74, clamping seat

[0040] 741. Mounting slot; 742. First clamping surface; 743. Relief slot

[0041] 75. First clamping cylinder; 76. First clamping plate; 761. First rotating shaft

[0042] 762. First anti-slip pad; 77. Positioning rod; 78. Compression spring.

[0043] 79. Connecting plate; 80. Rear end material pulling assembly; 81. Second material pulling motor

[0044] 82. Second synchronous belt; 83. Rear end puller; 831. Second clamping surface

[0045] 832, Second toothed plate; 84, Second clamping cylinder; 85, Second clamping plate

[0046] 851. Second anti-slip mat. Detailed Implementation

[0047] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the position or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0048] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0049] First, please refer to Figure 1-8 As shown, a sheet feeder device of this utility model includes a mounting frame 10, a hopper 20, a stripping platform 30, a traction mechanism, a picking mechanism 40, and a discharging mechanism 50. The stripping platform 30 is located at the upper end of the mounting frame 10. The discharging mechanism 50 and the hopper 20 are respectively located on the front and rear sides of the stripping platform 30. The end of the stripping platform 30 near the discharging mechanism 50 is provided with a stripping blade 31 and a clearance cylinder 32 for controlling the reciprocating movement of the stripping blade 31. The hopper 20 is used to supply sheet materials. 60. During operation, a person or a robotic arm places the stacked sheet material 60 into the hopper 20. The sheet material 60 includes a base paper 61 and material 62 adhering to the base paper 61. To facilitate the picking up of the sheet material 60, the hopper 20 can be configured as a lifting platform controlled by a servo motor, thereby achieving layer-by-layer lifting. The picking mechanism 40 is used to transport the sheet material 60 from the hopper 20 to the peeling platform 30. In this utility model, the picking mechanism 40 is a commonly used picking robotic arm in the art, which uses a suction nozzle or suction cup to pick up the sheet material 60. Sheets 60 are picked up one by one and fed onto the peeling platform 30. In practical applications, the number and distribution of suction nozzles or suction cups are set according to the size of the sheets 60. The discharge mechanism 50 is used to receive the material 62 of the peeled backing paper 61. The side of the discharge mechanism 50 near the peeling platform 30 is provided with a bending plate 33 that bends the backing paper 61 downwards. The side of the mounting frame 10 is provided with a backing paper discharge outlet 11, and a backing paper discharge groove 12 is provided at the backing paper discharge outlet 11. The traction mechanism includes a front-end pulling assembly 70 and a... The rear-end material pulling assembly 80 includes a rear-end material pulling clamp and a rear-end material pulling drive mechanism that drives the rear-end material pulling clamp to move back and forth. The front-end material pulling assembly 70 includes a front-end material pulling seat 73, a front-end material pulling clamp and a front-end material pulling drive mechanism that drives the front-end material pulling seat 73 to move back and forth. The front-end material pulling clamp is movably mounted on the front-end material pulling seat 73. The front-end material pulling seat 73 is provided with an elastic reset mechanism that makes the front-end material pulling clamp always tend to move away from the discharge mechanism 50.

[0050] like Figure 4-5As shown, the lower side of the stripping platform 30 is provided with a first slide rail 34, the front-end material pulling seat 73 is slidably connected to the first slide rail 34 through a slider, the front-end material pulling drive mechanism is a first material pulling motor 71, the output end of the first material pulling motor 71 is provided with a first synchronous belt 72 parallel to the first slide rail 34, and the front-end material pulling seat 73 is fixedly connected to one side of the first synchronous belt 72 through a first toothed plate 734.

[0051] The front-end material pulling clamp includes a clamping base 74, a first clamping cylinder 75, and a first clamping plate 76 controlled by the first clamping cylinder 75. The clamping base 74 is slidably mounted on the front-end material pulling base 73, and the first clamping cylinder 75 is mounted on the clamping base 74. One end of the clamping base 74 is provided with a first clamping surface 742 that cooperates with the first clamping plate 76 to clamp the front end of the bottom paper 61. Specifically, the first clamping plate 76 is rotatably mounted on the clamping base 74 via a first rotating shaft 761. The clamping base 74 is provided with a mounting groove 741 corresponding to the first rotating shaft 761. Both ends of the first rotating shaft 761 are embedded in the corresponding mounting groove 741. The driving end of the first clamping cylinder 75 is connected to a connecting plate 79 via a second rotating shaft. The connecting plate 79 is rotatably connected to the first clamping plate 76 via a third rotating shaft. During operation, the first clamping cylinder 75 controls the first clamping plate 76 to rotate around the first rotating shaft 761 via the connecting plate 79. The first clamping surface 742 is provided with a first anti-slip tooth pattern, and the first clamping plate 76 is provided with a first anti-slip pad 762. It should be understood that in actual use, the first clamping plate 76 can be directly controlled by the first clamping cylinder 75, and the first clamping cylinder 75 can also be replaced by an electric cylinder.

[0052] In this invention, the surface of the front-end material pulling seat 73 is provided with a movable groove 731, and a third slide rail 732 is provided within the movable groove 731. The clamping seat 74 is slidably connected to the third slide rail 732 via a slider. A clearance groove 743 is provided on the side of the clamping seat 74 away from the front-end material pulling seat 73, and the first clamping cylinder 75 is fixedly disposed within the clearance groove 743. By respectively placing the clamping seat 74 and the first clamping cylinder 75 within the movable groove 731 and the clearance groove 743, the overall structure of the front-end material pulling assembly 70 is made more compact, reducing the overall size of the equipment.

[0053] Specifically, the elastic reset mechanism is a compression spring 78. A positioning rod 77 is fixedly provided on the clamp 74. The axial direction of the positioning rod 77 is parallel to the extension direction of the third slide rail 732. The front pull seat 73 is provided with a receiving hole 733 corresponding to the positioning rod 77. The receiving hole 733 penetrates one end face of the front pull seat 73 and one side wall of the movable groove 731. The free end of the positioning rod 77 passes through the receiving hole 733. The compression spring 78 is provided in the receiving hole 733 and sleeved on the outside of the positioning rod 77. A baffle is provided on the free end of the positioning rod 77. One end of the compression spring 78 abuts against the inner wall of the receiving hole 733, and the other end abuts against the baffle. During assembly, the baffle and the compression spring 78 are first sleeved on the positioning rod 77 in sequence, and then the positioning rod 77 is fixedly connected to the clamp 74 through the receiving hole 733. In this invention, to ensure more even force distribution on the clamping seat 74, two sets of positioning rods 77 and compression springs 78 are provided, and two corresponding receiving holes 733 are provided on the front pull seat 73. It should be understood that in actual use, tension springs can also be used instead of compression springs 78.

[0054] Specifically, the rear-end material pulling clamp includes a rear-end material pulling seat 83, a second clamping cylinder 84, and a second clamping plate 85 controlled by the second clamping cylinder 84. The upper side of the peeling platform 30 is provided with a second slide rail 35. The rear-end material pulling seat 83 is slidably connected to the second slide rail 35 through a slider. The second clamping cylinder 84 and the second clamping plate 85 are both installed on the rear-end material pulling seat 83. One end of the rear-end material pulling seat 83 is provided with a second clamping surface 831 that cooperates with the second clamping plate 85 to clamp the rear end of the bottom paper 61. The rear-end material pulling drive mechanism is a second material pulling motor 81. The output end of the second material pulling motor 81 is provided with a second synchronous belt 82 parallel to the second slide rail 35. The rear-end material pulling seat 83 is fixedly connected to one side of the second synchronous belt 82 through a second toothed plate 832. The second clamping plate 85 is rotatably connected to the rear puller seat 83 via a fourth rotating shaft. The cylinder body of the second clamping cylinder 84 is rotatably connected to the rear puller seat 83 via a fifth rotating shaft. The drive end of the second clamping cylinder 84 is rotatably connected to the second clamping plate 85 via a sixth rotating shaft. During operation, the second clamping cylinder 84 controls the second clamping plate 85 to rotate around the fourth rotating shaft. The second clamping surface 831 is provided with a second anti-slip tooth pattern, and the second clamping plate 85 is provided with a second anti-slip pad 851. In actual use, the second clamping cylinder 84 can also be replaced by an electric cylinder.

[0055] In this utility model, both the first material pulling motor 71 and the second material pulling motor 81 are servo motors. In actual use, the first material pulling motor 71 and the second material pulling motor 81 can also control the movement of the front material pulling seat 73 and the rear material pulling seat 83 respectively through the lead screw.

[0056] like Figure 7-8As shown, the discharge mechanism 50 includes a discharge bracket 51, a discharge cylinder 52, a discharge platform 53, and an anti-stick plate 54. The discharge bracket 51 is fixedly mounted on the mounting frame 10, the discharge cylinder 52 is fixedly mounted on the discharge bracket 51, the discharge platform 53 is located at the drive end of the discharge cylinder 52 and can be driven up and down by the discharge cylinder 52, and the anti-stick plate 54 is fixedly mounted on the discharge platform 53. The anti-stick plate 54 is located on the side of the discharge mechanism 50 near the peeling platform 30. The discharge platform 53 is provided with a sensor 57 for detecting whether the material 62 on the anti-stick plate 54 is in place. The bending plate 33 is fixedly mounted on the end of the discharge platform 53 near the peeling blade 31. The anti-stick plate 54 is made of transparent material, and the discharge platform 53 has small holes corresponding to the sensor 57. The sensor 57 is a fiber optic sensor, which detects whether the material 62 on the anti-stick plate 54 is in place through the corresponding small holes during operation.

[0057] Specifically, the discharge mechanism 50 further includes a stripping and pressing assembly 55. The stripping and pressing assembly 55 includes a first pressing plate 553 and a first pressing cylinder 551 to prevent material 62 from shifting during stripping. The first pressing cylinder 551 is fixed to the mounting bracket 10. The driving end of the first pressing cylinder 551 extends upward and is connected to a driving seat 552. The first pressing plate 553 is fixedly connected to the driving seat 552. During operation, the first pressing plate 553 presses against the sheet material 60 on the stripping blade 31. The first pressing plate 553 is U-shaped. Two first pressing cylinders 551 are provided, symmetrically arranged, and respectively driven and connected to the two free ends of the first pressing plate 553. The first pressing plate 553 is provided with an adjusting screw 554 for adjusting the downward pressing stroke of the first pressing plate 553. The adjusting screw 554 is threadedly connected to the first pressing plate 553. By setting up the peeling and pressing assembly 55, the first pressing plate 553 can be pressed onto the surface of the sheet 60 during peeling, so that the material 62 can be accurately moved onto the anti-stick plate 54, avoiding the displacement of the material 62 during peeling, thereby ensuring that the material 62 can be extracted quickly and accurately in the future. By setting up the adjusting screw 554, the pressing stroke of the first pressing plate 553 can be adjusted according to the thickness of the sheet 60, thereby adjusting the pressing pressure of the first pressing plate 553, avoiding the situation that the sheet 60 is difficult to pull due to being too tight or that the material 62 will be displaced when separated due to being too loose.

[0058] In this invention, the discharge mechanism 50 further includes a discharge pressing assembly 56. The discharge pressing assembly 56 includes a second pressing plate 563 and a second pressing cylinder 561 to prevent material 62 from shifting during discharge. The drive end of the discharge cylinder 52 is provided with a discharge slide 521. The discharge platform 53 is fixedly installed on the upper end of the discharge slide 521. The second pressing cylinder 561 is fixedly installed on the side of the discharge slide 521. The drive end of the second pressing cylinder 561 is fixedly provided with a displacement cylinder 562. The second pressing plate 563 is fixedly connected to the drive end of the displacement cylinder 562 and its movement can be controlled by the displacement cylinder 562. By setting the discharge pressing assembly 56, the material 62 can be pressed onto the anti-stick plate 54 by the second pressing plate 563 during discharge, preventing the material 62 from shifting due to vibration when it rises with the discharge platform 53, thus improving discharge accuracy.

[0059] It should be understood that in actual use, the discharge cylinder 52, the first pressing cylinder 551, the second pressing cylinder 561, and the shifting cylinder 562 are all replaced by electric cylinders.

[0060] To achieve automatic control of the equipment, the hopper 20, the stripping platform 30, the traction mechanism, the material handling mechanism 40, and the discharge mechanism 50 are all connected to the control center. Specifically, relevant sensors can be installed in the hopper 20, the stripping platform 30, the traction mechanism, the material handling mechanism 40, and the discharge mechanism 50, so that the control center can control the actions of each mechanism, thereby enabling the mechanisms to cooperate and coordinate to achieve precise material supply. The specific control method adopts the technical means commonly used in this field, which will not be elaborated here.

[0061] The working process of this utility model is as follows:

[0062] The worker places the stacked sheet material 60 into the hopper 20. The clearance cylinder 32 first moves the peeling blade 31 backward, and the discharge cylinder 52 drives the discharge platform 53 and the anti-stick plate 54 to move upward. The picking mechanism 40 picks up the sheet material 60 and puts it onto the peeling platform 30. The rear-end pulling component 80 clamps the rear end of the sheet material 60's backing paper 61 and, together with the picking mechanism 40, moves the sheet material 60 forward on the peeling platform 30 until the front end of the sheet material 60's backing paper 61 touches the surface. The bending plate 33 is bent downwards. Then, the front-end material pulling assembly 70 clamps the front end of the bottom paper 61. Then, the release cylinder 32 moves the peeling plate 31 forward, and the front-end material pulling assembly 70 drives the bottom paper 61 to move backwards, so that the sheet 60 passes over the peeling plate 31 and is tensioned. Then, the discharge cylinder 52 drives the discharge platform 53 and the anti-stick plate 54 to move downwards, so that the upper surface of the anti-stick plate 54 is slightly lower than the upper surface of the peeling plate 31. Then, the first pressing cylinder 551 controls the first The pressure plate 553 presses against the surface of the material 62 on the sheet 60. Then, the front-end pulling assembly 70 and the rear-end pulling assembly 80 work together to move the bottom paper 61 backward around the peeling blade 31. The material 62 separates from the bottom paper 61 and moves onto the anti-stick plate 54. When the sensor 57 detects that the material 62 on the anti-stick plate 54 is fully in place, the front-end pulling assembly 70 and the rear-end pulling assembly 80 stop moving. The shifting cylinder 562 controls the second pressure plate 563 to move towards the anti-stick plate 54. Extending from the top of 4, the second pressing cylinder 561 controls the second pressing plate 563 to press down, thereby fixing the material 62 on the anti-stick plate 54. Finally, the discharge cylinder 52 drives the discharge platform 53 and the anti-stick plate 54 to rise, and the shifting cylinder 562 and the second pressing cylinder 561 reset, thereby completing the discharge. After the material 62 is removed, the above peeling action can be repeated. When all the material 62 on the same piece of material 60 is peeled off, the bottom paper 61 is discharged from the bottom paper discharge groove 12.

[0063] In summary, this utility model provides an elastic reset mechanism on the front-end material pulling seat that ensures the material pulling clamp always tends to move away from the material discharging mechanism. This allows the front-end and rear-end material pulling assemblies to maintain stable tension on the bottom paper during sheet feeding, preventing insufficient tension or severe deformation due to asynchronous movement between the front-end and rear-end material pulling assemblies. This improves the quality and efficiency of sheet peeling.

[0064] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Therefore, any modifications, equivalent substitutions, improvements, etc., made to the above embodiments based on the actual technical aspects of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A sheet feeder device, comprising a hopper, a peeling platform, a traction mechanism, a picking mechanism, and a discharging mechanism, wherein the hopper is used to supply sheet material, the sheet material comprising a backing paper and material adhering to the backing paper, the picking mechanism is used to transport the sheet material from the hopper to the peeling platform, and the discharging mechanism is used to receive the material whose backing paper has been peeled off, characterized in that, The traction mechanism includes a front-end material pulling assembly and a rear-end material pulling assembly. The rear-end material pulling assembly includes a rear-end material pulling clamp and a rear-end material pulling drive mechanism that drives the rear-end material pulling clamp to move back and forth. The front-end material pulling assembly includes a front-end material pulling seat, a front-end material pulling clamp, and a front-end material pulling drive mechanism that drives the front-end material pulling seat to move back and forth. The front-end material pulling clamp is movably mounted on the front-end material pulling seat. The front-end material pulling seat is provided with an elastic reset mechanism that makes the front-end material pulling clamp always tend to move away from the discharge mechanism.

2. The sheet feeder device according to claim 1, characterized in that, The front-end material pulling clamp includes a clamping seat, a first clamping cylinder, and a first clamping plate whose movement is controlled by the first clamping cylinder. The clamping seat is slidably installed on the front-end material pulling seat, and the first clamping cylinder is installed on the clamping seat. One end of the clamping seat is provided with a first clamping surface that cooperates with the first clamping plate to clamp the front end of the bottom paper.

3. The sheet feeder device according to claim 2, characterized in that, The surface of the front-end material pulling seat is provided with a movable groove, and a third slide rail is provided in the movable groove. The clamp is slidably connected to the third slide rail by a slider.

4. The sheet feeder device according to claim 2, characterized in that, The elastic reset mechanism is a compression spring. A positioning rod is fixed on the clamp. The axial direction of the positioning rod is parallel to the extension direction of the third slide rail. The front pull seat is provided with a receiving hole corresponding to the positioning rod. The receiving hole penetrates one end face of the front pull seat and one side wall of the movable groove. The free end of the positioning rod passes through the receiving hole. The compression spring is located in the receiving hole and sleeved on the outside of the positioning rod. The free end of the positioning rod is provided with a baffle. One end of the compression spring abuts against the inner wall of the receiving hole, and the other end abuts against the baffle.

5. The sheet feeder device according to claim 1, characterized in that, The lower side of the stripping platform is provided with a first slide rail. The front-end material pulling seat is slidably connected to the first slide rail via a slider. The front-end material pulling drive mechanism is a first material pulling motor. The output end of the first material pulling motor is provided with a first synchronous belt parallel to the first slide rail. The front-end material pulling seat is fixedly connected to one side of the first synchronous belt via a first toothed plate.

6. The sheet feeder device according to claim 1, characterized in that, The rear-end material pulling clamp includes a rear-end material pulling seat, a second clamping cylinder, and a second clamping plate whose movement is controlled by the second clamping cylinder. The upper side of the peeling platform is provided with a second slide rail. The rear-end material pulling seat is slidably connected to the second slide rail via a slider. The second clamping cylinder and the second clamping plate are both mounted on the rear-end material pulling seat. One end of the rear-end material pulling seat is provided with a second clamping surface that cooperates with the second clamping plate to clamp the rear end of the bottom paper. The rear-end material pulling drive mechanism is a second material pulling motor. The output end of the second material pulling motor is provided with a second synchronous belt parallel to the second slide rail. The rear-end material pulling seat is fixedly connected to one side of the second synchronous belt via a second toothed plate.

7. The sheet feeder device according to claim 1, characterized in that, It also includes an installation frame, the peeling platform is located at the top of the installation frame, the discharge mechanism and the hopper are respectively located on the front and rear sides of the peeling platform, the peeling platform near the discharge mechanism is provided with a peeling blade and a clearance cylinder for controlling the back and forth movement of the peeling blade, and the discharge mechanism near the peeling platform is provided with a bending plate for bending the bottom paper downwards.

8. A sheet feeder device according to claim 7, characterized in that, The discharge mechanism includes a discharge bracket, a discharge cylinder, a discharge platform, and an anti-stick plate. The discharge bracket is fixedly mounted on the mounting frame, the discharge cylinder is fixedly mounted on the discharge bracket, the discharge platform is located at the drive end of the discharge cylinder and can be driven up and down by the discharge cylinder, the anti-stick plate is fixedly mounted on the discharge platform, and the anti-stick plate is located on the side of the discharge mechanism near the peeling platform. The discharge platform is equipped with a sensor for detecting whether the material on the anti-stick plate is in place.

9. A sheet feeder device according to claim 8, characterized in that, The discharge mechanism also includes a stripping and pressing assembly, which includes a first pressing plate and a first pressing cylinder to prevent material deviation during stripping. The first pressing cylinder is fixed on the mounting frame, and the drive end of the first pressing cylinder extends upward and is connected to a drive seat. The first pressing plate is fixedly connected to the drive seat. During operation, the first pressing plate presses on the sheet material on the stripping blade.

10. A sheet feeder device according to claim 8, characterized in that, The discharge mechanism further includes a discharge pressing assembly, which includes a second pressing plate and a second pressing cylinder to prevent material displacement during discharge. The drive end of the discharge cylinder is provided with a discharge slide, and the discharge platform is fixedly installed on the upper end of the discharge slide. The second pressing cylinder is fixedly installed on the side of the discharge slide, and the drive end of the second pressing cylinder is fixedly provided with a displacement cylinder. The second pressing plate is fixedly connected to the drive end of the displacement cylinder and its movement can be controlled by the displacement cylinder.

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