A sheet material flyer

Abstract

The utility model provides a kind of sheet material flying dart, comprising: material table, stripping mechanism, compression mechanism and discharge mechanism, the discharge mechanism is set in the material table discharge side, the compression mechanism is movably arranged on the material table, the stripping mechanism includes the roller assembly for driving bottom paper movement, the compression mechanism includes the compression slide block being slidably connected with the first movement guide rail, first drive assembly and compression piece, the first drive assembly is fixed on the compression slide block, the drive end of the first drive assembly is connected with the compression piece, first drive assembly drives the compression piece to rise or drop to adjust the gap between the bottom surface of the compression piece and the material table. By setting movable compression mechanism, the rear end of sheet material placed on the material table is compressed by the compression mechanism, which can compress the bottom paper during stripping by the stripping assembly, ensuring the effective progress of the sheet stripping process and improving the sheet stripping efficiency.

Description

Technical Field

[0001] This utility model relates to the field of electronic product processing technology, specifically to a sheet feeder. Background Technology

[0002] With the rapid development of the electronics industry, many auxiliary materials for electronic products are placed on backing paper during production. When using these auxiliary materials, they must first be removed from the backing paper before they can be attached to the corresponding electronic products.

[0003] In the field of automated sheet material processing, sheet material feeders are key equipment for achieving continuous and efficient sheet material conveying. Their core workflow includes sheet material stacking and separation (stripping) processes. Among these, the stripping process is a crucial step in separating auxiliary materials from the sheet material, which directly affects subsequent processing.

[0004] Currently, most conventional sheet feeders use friction separation as their sheet-splitting mechanism. However, this often results in a lack of effective sheet fixation during the sheet-splitting process, causing the sheet to easily deviate during peeling, affecting efficiency, reducing feeder operating speed, and restricting the capacity utilization of automated production lines. Utility Model Content

[0005] The main purpose of this utility model is to provide a sheet feeder that aims to solve the problem of easy deviation during the sheet peeling process of existing sheet feeders.

[0006] To achieve the above objectives, this utility model proposes a sheet feeder, comprising: a feed platform, a peeling mechanism, a pressing mechanism, and a discharging mechanism. The discharging mechanism is disposed on the discharging side of the feed platform. The pressing mechanism is movably disposed on the feed platform. The peeling mechanism is disposed below the feed platform near the discharging mechanism. The peeling mechanism includes a roller assembly for driving the movement of the bottom paper. First moving guide rails are provided on both sides of the feed platform. The pressing mechanism includes a pressing slider, a first driving assembly, and a pressing member slidably connected to the first moving guide rails. The first driving assembly is fixed on the pressing slider. The first driving assembly drives the pressing member to rise or fall to adjust the gap between the bottom surface of the pressing member and the feed platform.

[0007] In one alternative embodiment, the pressing component includes a pressing block and a rubber block disposed below the pressing block. A cylinder connecting block is connected to the first drive assembly, and the pressing component is connected to the cylinder connecting block via a connector.

[0008] In one alternative embodiment, the discharge mechanism includes a discharge plate and a second drive assembly for lifting the discharge plate. When the second drive assembly drives the discharge plate to descend, it presses the front end of the bottom paper into the roller assembly.

[0009] In one alternative embodiment, the roller assembly includes a first roller, a second coated roller, and a second transmission assembly connected to the second coated roller. The peeling mechanism further includes a third drive assembly for driving the movement of the first roller relative to the second coated roller.

[0010] In an alternative embodiment, the sheet feeder is further provided with a waste box, the opening of which is located below the first roller and the second coating roller, and the waste box is provided with an extension plate extending to the side of the second coating roller away from the first roller.

[0011] In one alternative embodiment, the sheet feeder further includes a stacking device and a transfer mechanism. The stacking device is located on the side away from the discharge mechanism, and the transfer mechanism is located on the side of the material platform. The transfer mechanism includes a suction component and a third transmission component for driving the suction component to move laterally.

[0012] In one alternative embodiment, the stacking device includes a feeding plate, four baffles that are movable relative to the feeding plate and relatively enclosed to form a placement groove, a top plate disposed in the placement groove, and a screw assembly for lifting the top plate, wherein the sheet material is placed on the top plate.

[0013] In one alternative embodiment, the feeding plate has an adjustment groove corresponding to the position of the baffle, and the adjustment groove has multiple screw holes. An adjustment block is provided at the bottom of the baffle, and the adjustment block has a through hole. The adjustment block is fixed to the adjustment groove by fasteners.

[0014] In an alternative embodiment, the stacking device is further provided with a sensor for detecting sheet material.

[0015] In one alternative embodiment, the sheet feeder further includes a pressing assembly disposed on the side of the suction assembly away from the stacking device. The pressing assembly includes a lower pressing bar, at least one pressing block disposed on the lower pressing bar, and a fifth drive assembly for driving the lower pressing bar to move. The pressing block is disposed on the side facing the discharge assembly.

[0016] In this invention, a movable pressing mechanism is provided. The rear end of the sheet material placed on the material table is pressed by the pressing mechanism. It can press the sheet material when the peeling component peels off the bottom paper, or it can push the material by moving the pressing mechanism forward. In conjunction with the front peeling mechanism, it can ensure the effective peeling process and improve peeling efficiency. At the same time, the pressing component can adjust the extrusion gap between itself and the material table through the first driving component, so as to press the sheet material of different thicknesses. The pressing degree can be adjusted to adapt to the separation method of the sheet material, which can meet the needs of sheet material of different sizes and thicknesses, and has a wide range of adaptability. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 This is a perspective view of the sheet feeder of this utility model; Figure 2 This is a schematic diagram of the pressing mechanism, peeling mechanism and discharge mechanism of this utility model; Figure 3 This is another schematic diagram of the pressing mechanism, peeling mechanism and discharging mechanism of this utility model; Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 for Figure 3 Enlarged view at point B in the middle; Figure 6 This is a schematic diagram of the stacking device of this utility model; Figure 7 This is a schematic diagram of the transfer device and pressing device of this utility model; Figure 8 This is another angle structural diagram of the transfer device and pressing device of this utility model; Figure 9 for Figure 8 Enlarged diagram of point C in the middle.

[0019] Explanation of icon numbers: 1. Feeder base; 11. Material table; 111. First moving guide rail; 12. Sheet material; 121. Base paper; 122. Auxiliary materials; 2. Central control components; 3. Peeling mechanism; 31. Roller assembly; 311. First roller; 312. Second rubber-coating roller; 313. Second transmission assembly; 32. Third drive assembly; 4. Clamping mechanism; 41. Clamping slider; 42. First drive assembly; 43. Clamping component; 431. Pressing block; 432. Glue block; 44. Cylinder connecting block; 45. Connecting component; 43. First transmission assembly; 5. Discharge mechanism; 51. Discharge plate; 52. Second drive assembly; 6. Waste box; 7. Stacking device; 71. Feeding plate; 711. Adjusting groove; 712. Screw hole; 72. Baffle; 721. Adjusting block; 722. Through hole; 73. Top plate; 74. Screw assembly; 75. Sensor; 8. Transfer mechanism; 81. Suction assembly; 811. Negative pressure suction cup; 812. Fourth drive assembly; 82. Third transmission assembly; 83. Transfer bracket; 831. Second moving guide rail; 84. Transfer slider; 9. Pressing assembly; 91. Lower pressing bar; 92. Pressing block; 93. Fifth drive assembly; 94. Pressing bracket.

[0020] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0023] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, if the word "and / or" appears throughout the text, it means including three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0024] In this embodiment of the utility model, a sheet feeder is proposed. The feeder refers to an automatic feeding device. The sheet feeder is mainly used to automatically feed sheet materials. In this utility model, the sheet feeder is used to separate the auxiliary material in the sheet 12 from the base paper, so that the auxiliary material can be used for subsequent assembly in electronic products.

[0025] Combination Figure 1-9Specifically, the sheet feeder includes a central control component 2, a feed platform 11, a peeling mechanism 3, a pressing mechanism 4, and a discharge mechanism 5. The feed platform 11 is used to place the sheet 12, and the side connected to the discharge mechanism 5 is the discharge side. The discharge mechanism 5 is located on the discharge side of the feed platform 11. The peeling mechanism 3 is located below the side of the feed platform 11 near the discharge mechanism 5. The peeling mechanism 3 includes a roller assembly 31 for driving the bottom paper movement. When the sheet 12 is placed on the feed platform 11, at least part of the edge of its bottom paper (without any auxiliary material) protrudes from the feed platform 11. The peeling mechanism 3 is located below the feed platform 11 and the discharge mechanism 5, and the clamping part of the corresponding roller assembly 31 is located below the junction of the feed platform 11 and the discharge mechanism 5, so that the bottom paper protruding from the feed platform 11 can fall onto the roller assembly 31 for peeling. The friction between the roller assemblies 31 is used to peel the sheet, and at the same time, the auxiliary material can be moved forward to the discharge mechanism 5. The central control component 2 is used to precisely control the operation of each mechanism to achieve high-precision stripping, etc.

[0026] Combination Figure 2-5 In this embodiment, a pressing mechanism 4 is provided to ensure that the bottom paper does not deviate during the peeling process, thus affecting efficiency. First moving guide rails 111 are provided on both sides of the material platform 11. The pressing mechanism 4 is movably mounted on the material platform 11. The pressing mechanism 4 includes a pressing slider 41, a first driving component 42, and a pressing member 43. The pressing slider 41 slides with the first moving guide rail 111 so that the pressing member 43 remains in a pressing state synchronously when the sheet material 12 moves forward, or the pressing member 43 moves to push the material. The fixed end of the first driving component 42 is fixedly connected to the slider, and its driving end is connected to the pressing member 43. Thus, the first driving component 42 drives the pressing member 43 to rise or fall, thereby adjusting the gap between the bottom surface of the pressing member 43 and the material platform 11. In use, the clamping assembly can be used for clamping, and the peeling mechanism 3 can be used for feeding and peeling. Alternatively, the clamping assembly can be used for pushing the material, while the peeling assembly only peels the material. Or, both can be used in combination to simultaneously feed and peel the material. The cooperation between the clamping assembly and the peeling mechanism 3 can prevent the backing paper from shifting during peeling, ensuring the effective peeling process and improving efficiency. At the same time, the height-adjustable clamping member 43 makes it highly adaptable, compatible with different thicknesses, sizes, and types of sheet materials 12. It can also be used in conjunction with the peeling mechanism 3 to achieve different peeling and feeding methods.

[0027] The material platform 11 is a horizontal worktable for carrying the sheet material 12. It is mounted on the feeder base 1. The first moving guide rails 111 on both sides of the platform are linear guide structures arranged along the length of the material platform 11. They are used to constrain the sliding path of the clamping mechanism 4 and ensure that it only moves in the conveying direction of the sheet material 12. The clamping mechanism 4 is the core component to prevent the sheet material 12 from deviating. The clamping component 43 is the part that directly contacts the sheet material 12. The clamping slider 41 slides with the first moving guide rail 111 to clamp the sheet material 12. Alternatively, the first drive assembly 42 can drive the clamping member 43 to rise and fall. By adjusting the gap between the clamping member 43 and the material table 11, the rear end of the sheet material 12 can be clamped to prevent the bottom paper from shaking during peeling, and it can also adapt to sheet materials 12 of different thicknesses. The roller assembly 31 of the peeling mechanism 3 clamps and pulls the bottom paper downward, so that the auxiliary material and the bottom paper are separated on the discharge side. The discharge mechanism 5 receives the separated auxiliary material and transports it to the subsequent process, forming a stable process of "rear end clamping - middle peeling - front end output".

[0028] Furthermore, in conjunction with the appendix Figure 5 The first moving guide rail 111 is provided on both sides of the material platform 11. The pressing slider 41 and the first driving component 42 are each provided in two sets and respectively provided on the first moving guide rail 111 on both sides. The first driving component 42 includes a first cylinder. The telescopic ends of the first cylinders at both ends are connected to cylinder connecting blocks 44. The cylinder connecting blocks 44 are arranged parallel to the width of the material platform 11. The pressing component is connected to the cylinder connecting blocks 44 through connecting parts 45. In the pressing component, the pressing block 431 is a rigid main structure, such as aluminum alloy or engineering plastic, which mainly plays the role of supporting and transmitting pressure to ensure that the driving force of the first driving component 42 can stably act on the sheet material 12. The rubber block 432 below it is an elastic contact component, such as silicone or nitrile rubber. The rubber block 432 is used to directly contact the surface of the sheet material 12. It can increase the contact area with the sheet material 12 through elastic deformation to improve the pressing stability, and avoid the rigid extrusion that causes damage to the surface of the sheet material 12, such as indentations and scratches.

[0029] In this embodiment, the pressing mechanism 4 further includes a first transmission component 43 for driving the slider to move on the first moving guide rail 111. The first transmission component 43 is electrically connected to the central control component 2. The first transmission component 43 may adopt a synchronous belt transmission structure or a motor-screw drive structure, and there is no limitation here.

[0030] In another embodiment of this utility model, the discharge mechanism 5 includes a discharge plate 51 and a second drive assembly 52 for lifting the discharge plate 51. When the second drive assembly 52 drives the discharge plate 51 to descend, it presses the front end of the bottom paper into the roller assembly 31. The second drive assembly 52 is electrically connected to the central control assembly 2.

[0031] In the discharge mechanism 5, the discharge plate 51 is an auxiliary material that receives the peeled bottom paper. One end of it is connected to the discharge side of the material table 11, and the other end extends to the subsequent process. The second drive component 52 is a power component that drives the discharge plate 51 to rise and fall. It can be a miniature cylinder, an electric push rod, etc. Its fixed end is installed on the feeder base 1, and its output end is connected to the bottom of the discharge plate 51. It is used to lift the discharge plate 51 and precisely control the height of the discharge plate 51.

[0032] Combined with appendix Figure 2 Specifically, the second drive assembly 52 first lifts the discharge plate 51 above the platform where the material table 11 is located. When the sheet material 12 is placed on the material table 11 (the edge of the bottom paper protrudes at least partially from the material table 11), the discharge mechanism 5 presses down to press the protruding part of the bottom paper into the roller assembly 31, while simultaneously connecting the discharge plate 51 with the material table 11 to collect the auxiliary material. The liftable discharge plate 51 further ensures that the bottom paper can be reliably clamped and pulled by the roller assembly 31, avoiding "feeding failure" or traction slippage caused by the front end of the bottom paper being raised, thereby ensuring a continuous and stable peeling process between the sheet material 12 and the bottom paper.

[0033] Further combine with the appendix Figure 3 and appendix Figure 4 In one alternative embodiment, the roller assembly 31 includes a first roller 311, a second coated roller 312, and a second transmission assembly 313 connected to the second coated roller 312. The peeling mechanism 3 further includes a third drive assembly 32 for driving the first roller 311 to move relative to the second coated roller 312.

[0034] Specifically, the first roller 311 and the second rubber-coated roller 312 work together to clamp and pull the backing paper for peeling. The second rubber-coated roller 312 is an active traction roller, and its outer layer is wrapped with an elastic rubber layer. The elastic deformation of the rubber layer ensures close contact with the backing paper while avoiding scratching the backing paper.

[0035] The second transmission component 313 is a power transmission component that drives the second coating roller 312 to rotate. It can be a synchronous belt drive to transmit power to the second coating roller 312, drive it to rotate to pull the bottom paper to move, and provide continuous power for peeling the sheet 12.

[0036] The third drive assembly 32 is used to drive the first roller 311 to move in a direction perpendicular to the axis of the second coating roller 312, thereby adjusting the gap between the two rollers. The third drive assembly 32 can be a cylinder or an electric push rod. By adjusting the gap between the first roller 311 and the second coating roller 312 through the third drive assembly 32, before the bottom paper is pressed down, the third drive assembly 32 drives the first roller 311 to move away from the second coating roller 312, so that the corresponding gap increases, which is convenient for clamping the paper. When the bottom paper has been pressed into the gap, the third drive assembly 32 drives the first roller 311 to move towards the second coating roller 312, clamping the bottom paper with the second coating roller 312. At the same time, the gap can be flexibly adjusted by the third drive assembly 32 to adapt to bottom paper of different thicknesses, ensuring that the bottom paper is stably clamped without slipping, while avoiding the bottom paper wrinkling or being damaged due to the gap being too small. With the elastic rubber layer of the second coating roller 312, it can automatically compensate for the slight fluctuations in the thickness of the bottom paper, ensuring the consistency of the traction process.

[0037] Preferably, the sheet feeder is further provided with a waste box 6, the opening of the waste box 6 is located below the first roller 311 and the second coating roller 312, and the waste box 6 is provided with an extension plate (not shown in the figure) extending to the side of the second coating roller 312 away from the first roller 311.

[0038] The waste box 6 is a container component used to collect the waste backing paper after the sheet material 12 is peeled off. Its opening size needs to be adapted to the overall width of the first roller 311 and the second coating roller 312. The extension plate is a guide structure that extends from the opening of the waste box 6 toward the side of the second coating roller 312. Its extension length needs to cover the side of the second coating roller 312 away from the first roller 311. Since the second coating roller 312 is an active traction roller, after the waste backing paper is discharged from the gap between the two rollers, it will shift away from the first roller 311 with the rotation direction of the second coating roller 312. The extension plate can physically guide the shifted waste backing paper to the waste box 6, completely avoiding the waste backing paper from getting stuck in the gap between the roller assembly 31 and the frame, or falling into the equipment and causing malfunctions and downtime, thereby improving the continuous operation efficiency of the equipment.

[0039] Combination Figure 1 and Figure 6-9 In an optional embodiment, the sheet feeder further includes a stacking device 7 and a transfer mechanism 8. The stacking device 7 is located on the side away from the discharge mechanism 5, and the transfer mechanism 8 is located on the side of the material platform 11. The transfer mechanism 8 includes a suction component 81 and a third transmission component 82 for driving the suction component 81 to move laterally.

[0040] Among them, combined with the appendix Figure 7 and appendix Figure 8The transfer mechanism 8 is mounted on the feeder base 1 via a transfer support plate. The corresponding suction component 81 includes at least a negative pressure suction cup 811 for suctioning the sheet material 12 and a fourth drive component 812 for driving the suction cup to move up and down. The fourth drive component 812 drives the negative pressure suction cup 811 to move up and down, thereby realizing the action of the sheet material 12 being picked up from the stacking device 7 and raised or lowered onto the material platform 11. The third transmission component 82 is used to drive the suction component 81 to move laterally, that is, to drive the suction component 81 to move along the length direction parallel to the material platform 11, thereby realizing the lateral translation of the sheet material 12 from the stacking device 7 to the position of the material platform 11 for unloading.

[0041] Specifically, the transfer mechanism 8 includes a transfer bracket 83 mounted on the feeder base 1, a second moving guide rail 831 mounted on the transfer bracket 83, and a transfer slider 84 mounted on the suction assembly 81. The transfer slider 84 is slidably connected to the second moving guide rail 831. The third transmission assembly 82 can adopt a synchronous belt structure and may include a servo motor, a driving pulley, a driven pulley, and a synchronous belt. The synchronous belt is rigidly connected to the mounting base of the suction assembly 81, driving the suction assembly 81 to move horizontally along the path from the stacking device 7 to the material table 11. Through the precise control of the servo motor, it is ensured that the suctioned sheet material 12 can be accurately placed in the preset position on the material table 11, avoiding subsequent sheet peeling deviation due to transfer offset. At the same time, the smoothness of the synchronous belt transmission can reduce the shaking of the sheet material 12 during the transfer process.

[0042] Furthermore, in conjunction with the appendix Figure 6 The stacking device 7 includes a feeding plate 71, four baffles 72 that can move relative to the feeding plate 71 and are relatively enclosed to form a placement groove, a top plate 73 disposed in the placement groove, and a screw assembly 74 for lifting the top plate 73. The sheet material 12 is placed on the top plate 73.

[0043] The feeding plate 71 is mounted on the feeder base 1. The placement slot is formed by four adjustable baffles 72. The top plate 73 is placed in the placement slot and its bottom end is connected to a lead screw assembly 74. The motor of the lead screw assembly 74 drives the lead screw to rotate, which drives the top plate 73 to rise and fall smoothly in the vertical direction. When the top sheet 12 is taken away by the transfer mechanism 8, the lead screw assembly 74 lifts the top plate 73 in real time, so that the top surface of the remaining sheet 12 is always kept at the preset height, ensuring that the transfer mechanism 8 can pick up the sheet stably without adjusting the height, thus reducing the idle time of the equipment.

[0044] Optionally, the stacking device 7 is equipped with a sensor 75, which detects the remaining amount of sheet material 12 on the top plate 73 in real time. When the stacking height of sheet material 12 is lower than the detection threshold of sensor 75, sensor 75 sends a signal to the equipment control system to trigger an audible and visual alarm or a shutdown prompt, so as to avoid production interruption caused by the transfer mechanism 8 being idle and improve the continuity of equipment operation. The corresponding sensor 75 can be a diffuse reflection photoelectric sensor.

[0045] Furthermore, an adjustment groove 711 is provided on the feeding plate 71 at the position corresponding to the baffle 72, and a plurality of screw holes 712 are provided on the adjustment groove 711. An adjustment block 721 is provided at the bottom of the baffle 72, and a through hole 722 is provided on the adjustment block 721. The adjustment block 721 is fixed relative to the adjustment groove 711 by fasteners.

[0046] The feeding plate 71 has an adjustment groove 711 corresponding to the position of the baffle 72, and multiple screw holes 712 are evenly arranged on the groove. The baffle 72 is fixed to the adjustment block 721 at the bottom of the baffle 72 by fasteners. For feeding plates of different sizes, the position of the baffle 72 can be adjusted by sliding along the adjustment groove 711, ensuring adjustment flexibility and high adaptability.

[0047] In one alternative, combined with the appendix Figure 8 and appendix Figure 9 The feeder for sheet material also includes a pressing component 9, which is disposed on the side of the suction component 81 away from the stacking device 7. The pressing component 9 includes a lower pressing bar 91, at least one pressing block 92 disposed on the lower pressing bar 91, and a fifth driving component 93 for driving the lower pressing bar 91 to move. The pressing block 92 is disposed on the side of the discharge component.

[0048] Specifically, the pressing component 9 is located on the upper part of the connection between the discharge component and the material platform 11, and is slidably mounted on the second guide rail via the pressing bracket 94. Its core function is to provide stable pressure during the transition stage when the sheet material 12 has completed peeling and is about to enter the discharge component, so as to prevent the sheet material 12 from shifting due to inertia or its own deformation, and further ensure the conveying accuracy. Specifically, the pressure block 92 is an elastic component that directly contacts the sheet material 12. Multiple blocks are evenly distributed along the lower pressure bar 91 and face the discharge assembly side to ensure that the pressure direction is consistent with the conveying direction of the sheet material 12. It can both fit the surface of the sheet material 12 through elastic deformation and avoid the sheet material 12 from wrinkling or being damaged due to rigid extrusion. The fifth drive assembly 93 can be a micro cylinder or a servo electric cylinder. Its drive end is rigidly connected to the lower pressure bar 91 and is used to drive the lower pressure bar 91 and the pressure block 92 to rise and fall. Thus, when the sheet material 12 is conveyed, the pressure block 92 is driven to fall to a slight contact with the surface of the sheet material 12 to provide continuous constraint. After the sheet material 12 has completely entered the discharge assembly, the pressure block 92 rises and resets to avoid obstructing the subsequent sheet material 12.

[0049] In this invention, a movable pressing mechanism 4 is provided to press the rear end of the sheet material 12 placed on the material table 11. This pressing mechanism can press the sheet material 12 during the peeling process, or push it forward by moving the pressing mechanism 4. Combined with the front peeling mechanism 3, this ensures the effective peeling process and improves peeling efficiency. Simultaneously, the pressing mechanism, through the first driving component 42, can adjust the compression gap between itself and the material table 11, enabling the pressing of sheet materials 12 of different thicknesses. The degree of pressing can also be adjusted to suit the separation method of the sheet materials 12, accommodating sheet materials 12 of different sizes and thicknesses, thus providing wide adaptability. The above description is merely a preferred embodiment of this invention and does not limit the patent scope of this invention. Any equivalent structural transformations made based on the inventive concept of this invention, utilizing the description and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this invention.

[0050] The above description is only an optional embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A sheet feeder, characterized in that, include: The device includes a material platform, a peeling mechanism, a pressing mechanism, and a discharging mechanism. The discharging mechanism is located on the discharging side of the material platform. The pressing mechanism is movably mounted on the material platform. The peeling mechanism is located below the material platform near the discharging mechanism. The peeling mechanism includes a roller assembly for driving the bottom paper. First moving guide rails are provided on both sides of the material platform. The pressing mechanism includes a pressing slider, a first driving assembly, and a pressing member that are slidably connected to the first moving guide rails. The first driving assembly is fixed on the pressing slider. The driving end of the first driving assembly is connected to the pressing member. The first driving assembly drives the pressing member to rise or fall to adjust the gap between the bottom surface of the pressing member and the material platform.

2. The sheet feeder according to claim 1, characterized in that, The clamping component includes a pressure block and a rubber block disposed below the pressure block. A cylinder connecting block is connected to the first drive assembly, and the clamping component is connected to the cylinder connecting block through a connector.

3. The sheet feeder according to claim 1, characterized in that, The discharge mechanism includes a discharge plate and a second drive assembly for lifting the discharge plate. When the second drive assembly drives the discharge plate to descend, it presses the front end of the bottom paper into the roller assembly.

4. The sheet feeder according to claim 3, characterized in that, The roller assembly includes a first roller, a second coated roller, and a second transmission assembly connected to the second coated roller. The peeling mechanism further includes a third drive assembly for driving the movement of the first roller relative to the second coated roller.

5. The sheet feeder according to claim 4, characterized in that, The sheet feeder is also provided with a waste box, the opening of which is located below the first roller and the second coating roller, and the waste box is provided with an extension plate extending to the side of the second coating roller away from the first roller.

6. The sheet feeder according to claim 1, characterized in that, The sheet feeder also includes a stacking device and a transfer mechanism. The stacking device is located on the side away from the discharge mechanism, and the transfer mechanism is located on the side of the material platform. The transfer mechanism includes a suction component and a third transmission component for driving the suction component to move laterally.

7. The sheet feeder according to claim 6, characterized in that, The stacking device includes a feeding plate, four baffles that can move relative to the feeding plate and are relatively enclosed to form a placement groove, a top plate disposed in the placement groove, and a screw assembly for lifting the top plate, wherein the sheet material is placed on the top plate.

8. The sheet feeder according to claim 7, characterized in that, The feeding plate has an adjustment groove corresponding to the position of the baffle, and the adjustment groove has multiple screw holes. An adjustment block is provided at the bottom of the baffle, and the adjustment block has a through hole. The adjustment block is fixed to the adjustment groove by fasteners.

9. The sheet feeder according to claim 8, characterized in that, The stacking device is also equipped with a sensor for detecting sheet material.

10. The sheet feeder according to claim 6, characterized in that, The sheet feeder also includes a pressing assembly, which is located on the side of the suction assembly away from the stacking device. The pressing assembly includes a lower pressing bar, at least one pressing block disposed on the lower pressing bar, and a fifth driving assembly for driving the lower pressing bar to move. The pressing block is disposed on the side facing the discharge mechanism.

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