Automatic paper laying device

Abstract

The invention relates to the technical field of plate production equipment, and discloses an automatic paper laying device which comprises a double-layer paper storage mechanism used for stacking a surface paper stack and a bottom paper stack, and the double-layer paper storage mechanism comprises an upper-layer paper storage bearing table and a lower-layer paper storage bearing table; the paper storage bearing table comprises a fixedly-arranged frame, a transversely-moving transverse adjusting beam and a longitudinally-moving longitudinal bearing beam. The paper feeding transition device comprises a paper laying platform, a lifting machine arranged at the bottom of the paper laying platform, a beam frame capable of linearly moving in the horizontal direction and a lifting paper suction assembly, the paper suction assembly comprises a suction cup frame and a plurality of suction cup bodies, and the suction cup bodies are clamped to the lower surface of the suction cup frame through dismounting mechanisms; the protection device comprises a reflector, a photoelectric module and a travel switch. And the suction cup body is quickly mounted and dismounted through the dismounting mechanism, so that the problems of rusting and screw slipping caused by a traditional screw tightening mode are avoided, the maintenance process is simplified, and the maintainability of equipment is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of plate production equipment, and in particular to an automatic paper laying device. Background Art

[0002] In the field of board production equipment, automated paper laying devices, as core equipment for automating the laying of both face and backing paper on board surfaces, have consistently focused on improving paper laying efficiency and reliability. These devices typically stack paper using a paper accumulator and utilize suction cups to absorb, transfer, and lay individual sheets. They play a key role in continuous production lines for wood-based panels, decorative boards, and other board products.

[0003] In the prior art, the connection between the suction cup body and the suction cup frame of the automatic paper laying device is generally fixed by screw tightening. The suction cup body is vertically fixed to the lower surface of the suction cup frame by a number of screws. Although this connection structure has a certain stability during the initial installation, it has exposed significant defects in the long-term industrial production environment: on the one hand, the dust generated during the board production process is easy to accumulate in the screw connection gap, and after combining with humid air, it accelerates the oxidation and rusting of the screws; on the other hand, the frequent lifting and lowering of the suction cup will cause the screws to gradually strip due to vibration. When the suction cup body needs to be replaced due to wear, the rusted or stripped screws need to be repeatedly disassembled with the help of professional tools such as screwdrivers and wrenches, and even destructive means (such as cutting) need to be used to complete the separation. The entire maintenance process is time-consuming and labor-intensive.

[0004] During the research and development process, the inventors of this application found that the above-mentioned traditional screw connection method has at least the following technical problems: since the screws are easily affected by dust, moisture and vibration and rust and strip, it takes a lot of time and manpower to disassemble and maintain the suction cup body. Summary of the Invention

[0005] In response to the shortcomings of the existing technology, the present invention provides an automatic paper laying device, which solves the problem that the connection between the suction cup body and the suction cup frame of the automatic paper laying device in the existing technology is generally fixed by tightening screws. Since the screws are easily affected by dust, moisture and vibration and rust and strip, the disassembly and maintenance of the suction cup body requires a lot of time and manpower.

[0006] To achieve the above objectives, the present invention is achieved through the following technical solutions: an automatic paper laying device, comprising:

[0007] A double-layer paper storage mechanism is used to stack the top and bottom paper stacks. The double-layer paper storage mechanism includes upper and lower paper storage receiving platforms. The paper storage receiving platforms include a fixed frame, a transverse adjustment beam that moves laterally, and a longitudinal receiving beam that moves longitudinally. The longitudinal receiving beam is used to receive the paper stacks.

[0008] The paper feeding transition device includes a paper laying platform, an elevator arranged at the bottom of the paper laying platform, a beam frame capable of linear movement in the horizontal direction, and a lifting paper suction assembly. The paper suction assembly includes a suction cup frame and multiple suction cup bodies for sucking single sheets of paper from the double-layer paper storage mechanism. The suction cup bodies are clamped to the lower surface of the suction cup frame via a disassembly mechanism.

[0009] The protective device includes a reflector, a photoelectric module and a limit switch; the reflector is arranged on the side of the paper stack, the photoelectric module and the suction cup body are located on the other side of the paper stack, and the limit switch is located above the paper stack;

[0010] The paper suction assembly moves horizontally through the beam frame to enter above the paper pile, sucks a single sheet of paper and lays it on the paper laying platform to be taken away by the press.

[0011] By adopting the above technical solution, the shell of the disassembly mechanism is embedded in the connection between the suction cup frame and the suction cup body. The baffle drives the card block to be clamped into the limit groove of the shell to achieve initial positioning. At the same time, the handle is turned to drive the gear to engage the second rack, pushing the card plate to be tightly clamped into the card slot of the suction cup frame through the rubber pad. The locking structure of the ratchet and ratchet teeth can prevent the card plate from loosening. No screws are required for installation, and the fixation can be completed by manually operating the handle. When disassembling, the handle is rotated in the opposite direction to release the ratchet. The card plate and rubber pad are reset synchronously, and the suction cup body can be quickly separated by sliding with the baffle. This eliminates the effects of dust accumulation and humid environment on the rust of the connecting parts. There is no need to use tools such as screwdrivers. Simple rotation and sliding operations are only required for maintenance, which significantly reduces labor costs and equipment downtime, and realizes the rapid replacement and maintenance of the suction cup body.

[0012] Preferably, the transverse adjustment beam is connected to the frame via a transverse sliding module and is driven by a transverse adjustment cylinder, and the longitudinal receiving beam is connected to the transverse adjustment beam via a longitudinal sliding module and is driven by a longitudinal adjustment cylinder.

[0013] Preferably, the paper laying platform is provided with a plurality of negative pressure suction ports for adsorbing and positioning single sheets of paper, and a blow pipe is provided on the side of the paper laying platform facing the paper stack, and the blow pipe is equipped with a plurality of blowing nozzles for separating stuck papers.

[0014] Preferably, the beam frame achieves horizontal movement through a driving wheel shaft, a rolling gear and first racks on both sides of the paper laying platform, and the driving wheel shaft is driven by a motor through a sprocket.

[0015] Preferably, the suction cup frame of the paper suction assembly is driven by a lifting cylinder, the cylinder body of the lifting cylinder is vertically fixed to the beam frame, and the suction cup body is a telescopic corrugated suction cup, which is installed on the suction cup frame.

[0016] Preferably, the photoelectric module includes a light emitter and a photoelectric sensor, and the light emitted by the photoelectric module is reflected by a reflector and fed back to the host computer. When the host computer detects a transition from a light signal to a no light signal, it controls the suction cup body to stop descending.

[0017] Preferably, the travel switch includes a box body, a trigger rod and a roller sleeve. When the suction cup body presses the paper stack and collapses, the roller sleeve triggers the travel switch and feeds back a signal to the host computer to stop the suction cup from descending.

[0018] Preferably, the photoelectric module is lower than the suction cup body in the vertical direction, so that it triggers feedback before the suction cup body reaches the paper stack, and the travel switch adjusts its relative height to the suction cup body through the waist-shaped hole.

[0019] Preferably, the disassembly mechanism includes a shell, the exterior of the shell is arranged inside the suction cup frame and the suction cup body, a plurality of limit grooves are provided on the upper surface of the shell, and sliding grooves are provided inside both sides of the shell. The exterior of the shell is slidably connected to a baffle, and the inner top wall of the baffle is rotatably connected to a clamping block, and the exterior of the clamping block is clamped in the limit groove. The disassembly mechanism also includes a disassembly component.

[0020] Preferably, the disassembly assembly includes a rotating column, the external rotation of the rotating column is connected to the inside of the shell, one side of the rotating column is fixedly connected to the outside of a handle, the other side of the rotating column is fixedly connected to the outside of a gear, the external rotation of the gear is connected to the inside of the rotating column, the tooth end of the gear is meshingly connected to the second rack, the external rotation of the second rack is connected to the clamping plate, one side of the clamping plate is fixedly connected to the outside of a rubber pad, the external sliding of the second rack is connected to the inside of the shell, the external rotation of the clamping plate is connected to the inside of the shell, and is clamped to the inside of the suction cup frame through the rubber pad, one side of the rotating column is fixedly connected to the outside of a ratchet, the tooth end of the ratchet is meshingly connected to the ratchet, and the external rotation of the ratchet is connected to the outside of one side of the shell.

[0021] Working principle: First, the double-layer paper storage mechanism drives the lateral adjustment beam and longitudinal support beam to move through the lateral adjustment cylinder and longitudinal adjustment cylinder to accurately adjust the position of the paper stack. After the manual forklift places the paper stack, the longitudinal and lateral positions of the paper stack are aligned with the paper suction assembly, laying the foundation for subsequent paper retrieval operations.

[0022] Next, the paper feed transition device's suction assembly moves horizontally over the stack. A photoelectric module, working in conjunction with a reflector, monitors the stack's height in real time. When the suction cup descends to the stack's surface, the module detects light obstruction, switching from a light signal to a dark signal. The host computer immediately controls the suction cup's descent and initiates vacuum suction. Simultaneously, an air blower blows air onto the stack's surface, assisting in separating stuck sheets. A lifting cylinder raises the suction cup, freeing individual sheets from the stack. If the stack's surface is uneven, the roller sleeve of the travel switch is compressed, triggering a signal that further stops the suction cup's descent to prevent damage to the paper or equipment. The suction assembly then transfers the individual sheets to the laydown platform. Negative pressure suction ports on the laydown platform activate, sucking and securing the sheets to prevent them from drifting or misaligning. A lift adjusts the laydown platform's position according to the height of the feeder, ensuring the sheets match the feeder's height.

[0023] Finally, the horizontal paper laying mechanism picks up the paper from the paper laying platform and lays it accurately on the wooden board of the board feeder. At this point, the laying process of the bottom paper and the cover paper is completed, and the entire work cycle ends.

[0024] The present invention provides an automatic paper laying device. It has the following beneficial effects:

[0025] 1. The present invention enables the suction cup body to be quickly installed and disassembled through a disassembly mechanism, avoiding the problems of rust and thread stripping caused by traditional screw tightening methods, simplifying the maintenance process and improving the maintainability of the equipment.

[0026] 2. This invention utilizes a double-layer paper storage mechanism to achieve stacking of top and bottom paper stacks. The horizontal adjustment beam and vertical support beam of the paper storage platform are driven by hydraulic cylinders, which work in conjunction with a sliding module to precisely adjust the two-dimensional position of the paper stack. This solves the problem of inaccurate positioning during traditional manual paper loading, significantly reduces labor intensity, and improves production efficiency.

[0027] 3. The paper transfer device's suction assembly utilizes a retractable corrugated suction cup, combined with a negative pressure suction port and blower tube design, to effectively separate stuck sheets of paper and ensure precise suction of individual sheets. A photoelectric module, working in conjunction with a reflector, monitors the height of the paper stack in real time and triggers a signal before the suction cup contacts the stack, stopping its descent and resuming suction, thus preventing damage to the paper or equipment.

[0028] 4. The protective device integrates a dual detection mechanism: a photoelectric module and a limit switch. The photoelectric module triggers a light-blocking signal in advance, while the limit switch, with its adjustable height via a waist-shaped hole, adapts to varying paper stack thicknesses. It immediately stops descending when the suction cup collapses upon pressing the stack, improving the safety and reliability of the device and reducing failure rates.

[0029] 5. The present invention realizes a fully automated process from paper storage, suction, positioning to laying through the coordinated work of the elevator, beam frame, paper suction assembly and paper laying platform, which is suitable for large-scale board production scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0031] Figure 2 A schematic diagram of the partial structure of the photovoltaic module of the present invention;

[0032] Figure 3 It is a partial structural diagram of the disassembly mechanism of the present invention;

[0033] Figure 4 This is a schematic diagram of the partial structure of the paper storage and receiving platform of the present invention;

[0034] Figure 5 For the present invention Figure 2 A in the middle is an enlarged schematic diagram;

[0035] Figure 6 It is a schematic cross-sectional view of the internal structure of the suction cup frame of the present invention;

[0036] Figure 7 It is a schematic diagram of the local structure of the limiting groove of the present invention;

[0037] Figure 8 This is a schematic diagram of the local structure of the chute of the present invention.

[0038] Figure 9 It is a schematic diagram of the local structure of the gear of the present invention.

[0039] Among them, 1. Double-layer paper storage mechanism; 11. Paper storage receiving platform; 111. Frame; 112. Horizontal adjustment beam; 113. Longitudinal receiving beam; 114. Horizontal adjustment cylinder; 115. Longitudinal adjustment cylinder; 2. Paper feeding transition device; 21. Paper laying platform; 211. Negative pressure suction port; 212. Blowing pipe; 213. First rack; 22. Elevator; 23. Beam; 231. Driving wheel shaft; 233. Motor; 234. Lifting cylinder; 24. Suction Paper assembly; 241. Suction cup holder; 242. Suction cup body; 3. Reflector; 4. Photoelectric module; 5. Limit switch; 51. Box body; 52. Trigger rod; 53. Roller sleeve; 6. Disassembly mechanism; 61. Housing; 62. Limit groove; 63. Slide groove; 64. Baffle; 65. Block; 7. Disassembly assembly; 71. Rotating column; 72. Handle; 73. Second rack; 74. Card plate; 75. Rubber pad; 76. Gear; 77. Ratchet; 78. Ratchet. DETAILED DESCRIPTION

[0040] The following will clearly and completely describe the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0041] Please see the attached Figure 1 -Attached Figure 3 , an embodiment of the present invention provides an automatic paper laying device, comprising:

[0042] A double-layer paper storage mechanism 1 is used for stacking top and bottom paper stacks. The double-layer paper storage mechanism 1 includes upper and lower paper storage receiving platforms 11. The paper storage receiving platforms 11 include a fixed frame 111, a transverse adjustment beam 112 that moves laterally, and a longitudinal receiving beam 113 that moves longitudinally. The longitudinal receiving beam 113 is used to receive paper stacks.

[0043] The paper feeding transition device 2 includes a paper laying platform 21, an elevator 22 disposed at the bottom of the paper laying platform 21, a horizontally movable beam 23, and a lifting paper suction assembly 24. The paper suction assembly 24 includes a suction cup frame 241 and multiple suction cup bodies 242 for sucking single sheets of paper from the double-layer paper storage mechanism 1. The suction cup bodies 242 are connected to the lower surface of the suction cup frame 241 via a disassembly mechanism 6.

[0044] The protective device includes a reflector 3, a photoelectric module 4, and a limit switch 5; the reflector 3 is arranged on the side of the paper stack, the photoelectric module 4 and the suction cup body 242 are located on the other side of the paper stack, and the limit switch 5 is located above the paper stack;

[0045] The paper suction assembly 24 moves horizontally through the beam 23 to enter the top of the paper pile, sucks up a single sheet of paper and lays it on the paper laying platform 21 to be taken away by the press.

[0046] Specifically, the double-layer paper storage mechanism 1 is fixed to the ground through a frame 111. The horizontal adjustment beam 112 and the longitudinal receiving beam 113 of the upper and lower paper storage receiving platforms 11 are driven by the horizontal adjustment cylinder 114 and the longitudinal adjustment cylinder 115 respectively to adjust the position of the paper stack to connect with the paper taking position. The beam frame 23 of the paper feeding transition device 2 moves horizontally under the engagement of the active wheel shaft 231 driven by the motor 233 through the sprocket and the first rack 213, driving the paper suction assembly 24 to the top of the paper stack. The elevator 22 adjusts the height of the paper laying platform 21, and the blowing pipe 212 blows air to separate the paper, and the suction cup body 242 stops descending and absorbs the paper when the photoelectric module 4 detects that the light is blocked by the paper stack, and is then lifted by the lifting cylinder 234. The negative pressure suction port 211 of the paper laying platform 21 fixes the paper, and then is taken away by the press. The photoelectric module 4 in the protective device can trigger the light blocking signal in advance because it is lower than the suction cup body 242. The travel switch 5 adjusts the height through the waist-shaped hole, and the disassembly mechanism 6 cooperates with the second rack 73 through the rotating column 71, the gear 76 and the second rack 73 to realize the rapid disassembly and assembly of the suction cup body 242.

[0047] Please see the attached Figure 4 and attached Figure 5 The transverse adjustment beam 112 is connected to the frame 111 through a transverse sliding module and is driven by a transverse adjustment cylinder 114. The longitudinal supporting beam 113 is connected to the transverse adjustment beam 112 through a longitudinal sliding module and is driven by a longitudinal adjustment cylinder 115. The paper laying platform 21 is provided with a plurality of negative pressure suction ports 211 for adsorbing and positioning single sheets of paper. The side of the paper laying platform 21 facing the paper stack is provided with a blowing pipe 212, and the blowing pipe 212 is equipped with a plurality of blowing nozzles for separating stuck sheets of paper. The beam frame 23 is horizontally moved by the driving wheel shaft 231, the rolling gear and the first racks 213 on both sides of the paper laying platform 21. The driving wheel shaft 231 is driven by a motor 233 through a sprocket.

[0048] Specifically, first, the transverse adjustment beam 112 is connected to the frame 111 through a transverse sliding module, and is driven to move transversely by a transverse adjustment cylinder 114. The longitudinal receiving beam 113 is connected to the transverse adjustment beam 112 through a longitudinal sliding module, and is driven to move longitudinally by a longitudinal adjustment cylinder 115. When the forklift places the paper stack on the longitudinal receiving beam 113, the two cylinders work together to push the paper stack to the paper picking position with the help of the sliding module. The two-dimensional position adjustment is achieved through the cooperation of the hydraulic drive and the sliding module, which solves the problem of empty suction or paper collision caused by the inaccurate positioning of the traditional manual paper feeding. , reducing labor intensity; secondly, the multiple negative pressure suction ports 211 opened on the paper laying platform 21 are connected to the negative pressure fan through pipes, which absorb the paper and make it close to the platform, and the blowing pipe 212 facing the side of the paper stack sprays compressed air through multiple blowing nozzles, forming an air flow layer on the top surface of the paper stack to separate the stuck paper, and the motor 233 drives the driving wheel shaft 231 to rotate through the sprocket, and the driving wheel shaft 231 is engaged with the first racks 213 on both sides of the paper laying platform 21 through the rolling gear, thereby effectively solving the problem of paper sticking, and improving the success rate of single paper suction and paper laying efficiency.

[0049] Please see the attached Figure 6 and attached Figure 7 The suction cup frame 241 of the paper suction assembly 24 is driven by the lifting cylinder 234. The cylinder body of the lifting cylinder 234 is vertically fixed to the beam frame 23. The suction cup body 242 is a telescopic corrugated suction cup installed on the suction cup frame 241; the photoelectric module 4 includes a light emitter and a photoelectric sensor. The light emitted by it is reflected by the reflector 3 and fed back to the host computer. When the host computer detects the transition from the light signal to the light-free signal, it controls the suction cup body 242 to stop descending; the limit switch 5 includes a box body 51, a trigger rod 52 and a roller sleeve 53. When the suction cup body 242 presses the paper stack and collapses, the roller sleeve 53 triggers the limit switch 5 and feeds back a signal to the host computer to stop the suction cup from descending; the photoelectric module 4 is lower than the suction cup body 242 in the vertical direction, so that it triggers feedback before the suction cup body 242 reaches the paper stack. The limit switch 5 adjusts its relative height with the suction cup body 242 through the waist-shaped hole.

[0050] Specifically, the lifting cylinder 234 drives the suction cup frame 241 of the paper suction assembly 24 to be vertically fixed on the beam frame 23 and move up and down, and the telescopic corrugated suction cup body 242 installed on the suction cup frame 241 can elastically collapse through its own corrugated structure when it contacts the paper stack, avoiding hard collision with the paper stack. The light emitted by the light emitter of the photoelectric module 4 is reflected by the reflector 3, received by the photoelectric sensor and fed back to the host computer. When the suction cup body 242 drops to the preset suction position, the light is blocked by the paper stack. After the host computer detects the change from presence to absence of the light signal, it immediately controls the lifting cylinder 234 to stop the action. At the same time, when the suction cup body 242 presses the paper stack and collapses, the roller sleeve 53 of the limit switch 5 will touch the surface of the paper stack and drive the trigger rod 52 to swing, thereby triggering the limit switch 5, and feeding back a signal to the host computer to urgently stop the suction cup from descending. Since the photoelectric module 4 is lower than the suction cup body 242 in the vertical direction, it can reach the side of the paper stack before the suction cup to trigger the signal, and the limit switch 5 can be adjusted up and down through the waist-shaped hole to adapt to paper stacks of different thicknesses. This solves the problem of traditional suction cups being damaged by paper due to inaccurate positioning, and saves the trouble of frequent manual adjustments to different thicknesses of paper stacks, thus realizing fully automated and precise paper picking.

[0051] Please see the attached Figure 8 and attached Figure 9 The disassembly mechanism 6 includes a shell 61, the outside of the shell 61 is arranged inside the suction cup frame 241 and the suction cup body 242, a plurality of limit grooves 62 are provided on the upper surface of the shell 61, and slide grooves 63 are provided inside both sides of the shell 61. The outside of the shell 61 is slidably connected to a baffle 64, and the inner top wall of the baffle 64 is rotatably connected to a block 65. The outside of the block 65 is clamped in the limit groove 62. The disassembly mechanism 6 also includes a disassembly component 7; the disassembly component 7 includes a rotating column 71, the outside of the rotating column 71 is rotatably connected to the inside of the shell 61, one side of the rotating column 71 is fixedly connected to the outside of the handle 72, and the other side of the rotating column 71 is fixed to the outside A gear 76 is fixedly connected, and the outside of the gear 76 is rotatably connected to the inside of the rotating column 71. The tooth end of the gear 76 is meshingly connected to the second rack 73. The outside of the second rack 73 is rotatably connected to the clamping plate 74. A rubber pad 75 is fixedly connected to the outside of one side of the clamping plate 74. The outside of the second rack 73 is slidably connected to the inside of the shell 61. The outside of the clamping plate 74 is rotatably connected to the inside of the shell 61 and is clamped to the inside of the suction cup frame 241 through the rubber pad 75. A ratchet 78 is fixedly connected to the outside of one side of the rotating column 71. The tooth end of the ratchet 78 is meshingly connected to the ratchet 77. The outside of the ratchet 77 is rotatably connected to the outside of one side of the shell 61.

[0052] Specifically, when the suction cup body 242 needs to be installed, the shell 61 is first embedded in the connection part between the suction cup frame 241 and the suction cup body 242. At this time, the baffle 64 is pushed to slide along the slide grooves 63 on both sides of the shell 61, so that the block 65 is aligned with the limit groove 62 on the upper surface of the shell 61, and the handle 72 is rotated to drive the rotating column 71 to rotate. The gear 76 on the other side of the rotating column 71 rotates synchronously, meshing and driving the second rack 73 to slide horizontally in the shell 61. The second rack 73 pushes the card plate 74, so that the rubber pad 75 on the outside of the card plate 74 is tightly engaged with the internal card groove of the suction cup frame 241. At the same time, the card block 65 in the baffle 64 is embedded in the limit groove 62 to form double positioning, and the ratchet 78 engages with the ratchet 77 to prevent the rotating column 71 from reversing, ensuring that the card relay force of the card plate 74 is continuous and stable.

[0053] When disassembly is required, rotate the handle 72 in the opposite direction, release the ratchet 78 by rotating the ratchet 77, and then rotate the handle 72 to make the gear 76 drive the second rack 73 to reset, and the clamping plate 74 drives the rubber pad 75 to disengage from the suction cup frame 241, and at the same time slide the baffle 64 to make the clamping block 65 disengage from the limiting groove 62, and finally separate the suction cup body 242, thereby replacing the traditional screw tightening method and solving the problem of difficult disassembly caused by rust and stripping of the screws.

[0054] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations may be made to the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An automatic paper laying device, characterized in that: include: A double-layer paper storage mechanism (1) is used for stacking top paper stacks and bottom paper stacks, the double-layer paper storage mechanism (1) comprising upper and lower paper storage receiving platforms (11), the paper storage receiving platform (11) comprising a fixedly configured frame (111), a transversely movable transverse adjustment beam (112) and a longitudinally movable longitudinal receiving beam (113), the longitudinal receiving beam (113) being used for receiving paper stacks; A paper feeding transition device (2) comprises a paper laying platform (21), an elevator (22) arranged at the bottom of the paper laying platform (21), a beam frame (23) capable of linear movement in a horizontal direction, and a lifting paper suction assembly (24), wherein the paper suction assembly (24) comprises a suction cup frame (241) and a plurality of suction cup bodies (242) for sucking a single sheet of paper from the double-layer paper storage mechanism (1), and the suction cup bodies (242) are clamped to the lower surface of the suction cup frame (241) via a disassembly mechanism (6); The protective device comprises a reflector (3), a photoelectric module (4) and a travel switch (5); the reflector (3) is arranged on the side of the paper stack, the photoelectric module (4) and the suction cup body (242) are located on the other side of the paper stack, and the travel switch (5) is located above the paper stack; The paper suction assembly (24) moves horizontally through the beam frame (23) into the top of the paper pile, absorbs a single sheet of paper and lays it on the paper laying platform (21), and is taken away by the press.

2. The automatic paper laying device according to claim 1, characterized in that: The transverse adjustment beam (112) is connected to the frame (111) via a transverse sliding module and is driven by a transverse adjustment oil cylinder (114); the longitudinal receiving beam (113) is connected to the transverse adjustment beam (112) via a longitudinal sliding module and is driven by a longitudinal adjustment oil cylinder (115).

3. The automatic paper laying device according to claim 1, characterized in that: The paper laying platform (21) is provided with a plurality of negative pressure suction ports (211) for absorbing and positioning a single sheet of paper. A blowing pipe (212) is provided on the side of the paper laying platform (21) facing the paper stack. The blowing pipe (212) is equipped with a plurality of blowing nozzles for separating stuck sheets of paper.

4. The automatic paper laying device according to claim 1, characterized in that: The beam frame (23) is moved horizontally by a driving wheel shaft (231), a rolling gear and first racks (213) on both sides of the paper laying platform (21); the driving wheel shaft (231) is driven by a motor (233) through a sprocket.

5. The automatic paper laying device according to claim 1, characterized in that: The suction cup frame (241) of the paper suction assembly (24) is driven by a lifting cylinder (234), the cylinder body of the lifting cylinder (234) is vertically fixed to the beam frame (23), and the suction cup body (242) is a telescopic corrugated suction cup, which is installed on the suction cup frame (241).

6. The automatic paper laying device according to claim 1, characterized in that: The photoelectric module (4) comprises a light emitter and a photoelectric sensor. The light emitted by the photoelectric module is reflected by a reflector (3) and fed back to the host computer. When the host computer detects a change from a light signal to a no light signal, it controls the sucker body (242) to stop descending.

7. The automatic paper laying device according to claim 6, characterized in that: The travel switch (5) comprises a box body (51), a trigger rod (52) and a roller sleeve (53). When the suction cup body (242) presses the paper stack and collapses, the roller sleeve (53) triggers the travel switch (5) and feeds back a signal to the host computer to stop the suction cup from descending.

8. The automatic paper laying device according to claim 7, characterized in that: The photoelectric module (4) is lower than the suction cup body (242) in the vertical direction, so that it triggers feedback before the suction cup body (242) reaches the paper stack, and the travel switch (5) adjusts its relative height with the suction cup body (242) through the waist-shaped hole.

9. The automatic paper laying device according to claim 1, characterized in that: The disassembly mechanism (6) comprises a shell (61), the exterior of the shell (61) is arranged inside the suction cup frame (241) and the suction cup body (242), a plurality of limiting grooves (62) are provided on the upper surface of the shell (61), and sliding grooves (63) are provided inside both sides of the shell (61), the exterior of the shell (61) is slidably connected to a baffle (64), the inner top wall of the baffle (64) is rotatably connected to a clamping block (65), and the exterior of the clamping block (65) is clamped in the limiting groove (62). The disassembly mechanism (6) further comprises a disassembly component (7).

10. The automatic paper laying device according to claim 9, characterized in that: The disassembly assembly (7) includes a rotating column (71), the outside of the rotating column (71) is rotatably connected to the inside of the housing (61), one side of the rotating column (71) is fixedly connected to the outside of a handle (72), the other side of the rotating column (71) is fixedly connected to the outside of a gear (76), the outside of the gear (76) is rotatably connected to the inside of the rotating column (71), the tooth end of the gear (76) is meshedly connected to a second rack (73), the outside of the second rack (73) is rotatably connected to a card plate (74), the The outside of one side of the card plate (74) is fixedly connected to a rubber pad (75); the outside of the second rack (73) is slidably connected to the inside of the housing (61); the outside of the card plate (74) is rotatably connected to the inside of the housing (61) and is clamped to the inside of the suction cup frame (241) through the rubber pad (75); the outside of one side of the rotating column (71) is fixedly connected to a ratchet (78); the tooth end of the ratchet (78) is meshedly connected to a ratchet (77); and the outside of the ratchet (77) is rotatably connected to the outside of one side of the housing (61).

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