Automatic paper laying mechanism of pressing machine

Abstract

The utility model belongs to the technical field of plate production equipment, and particularly relates to an automatic paper laying mechanism of a pressing machine, which comprises a double-layer paper storage device and a paper feeding transition device, the paper feeding transition device comprises a paper laying platform and a lifter arranged at the bottom of the paper laying platform and used for controlling the paper laying platform to ascend and descend, a beam frame capable of linearly moving in the horizontal direction is assembled on the paper laying platform, and a paper suction assembly capable of ascending and descending is arranged on the beam frame. The paper suction assembly enters the position above a face paper stack or a bottom paper stack of the double-layer paper storage device along with horizontal movement of the beam frame to suck a single piece of face paper or bottom paper, and the sucked single piece of face paper or bottom paper is laid on the paper laying platform to be taken away by a pressing machine. The paper supporting frame solves the technical problems that a lifting mechanism of a paper supporting frame in the prior art is prone to loss, a pit needs to be dug for installation, and later transformation is not facilitated.

Description

Technical Field

[0001] This utility model belongs to the technical field of sheet metal production equipment, specifically relating to an automatic paper-laying mechanism for a press. Background Technology

[0002] The process of the veneer production line is as follows: first, the base paper is laid on the board feeding machine, then the board is laid on the base paper so that the bottom surface of the board is bonded to the base paper, then the face paper is laid on the board so that the top surface of the board is bonded to the face paper, and finally the whole thing is conveyed into the hot press for pressing.

[0003] Utility model patent CN216686864U discloses an automatic hot-pressing and laminating paper laying device, including a paper tray mechanism and a paper laying mechanism. The paper tray mechanism includes a paper tray frame that can be lifted and lowered. The paper tray frame is provided with an upper paper tray and a lower paper tray that can be moved horizontally. The paper laying mechanism includes a paper suction frame for picking up the laminating paper from the paper tray frame and sending the laminating paper to the feeding trolley. The paper suction frame is connected to a slant cylinder that can keep its tilt angle consistent with that of the feeding trolley. The paper tray frame is located on one side of the feeding trolley, and a hydraulic lifting platform that drives its lifting and lowering movement is provided below the paper tray frame.

[0004] As stated in the aforementioned patent, in the prior art, two stacks of paper, one for the bottom paper and one for the top paper, are stacked simultaneously on a paper support frame equipped with a hydraulic lifting platform. The paper support frame is located next to the feed trolley of the press. The suction cups on the feed trolley can only move horizontally, requiring the hydraulic lifting platform of the paper support frame to be continuously raised and lowered until the horizontally moving suction cups can reach the paper at the correct height to match the suction cups. However, the mechanical structure of the paper support frame itself (weighing 2 tons) and the weight of the two stacked paper stacks (weighing 4 tons) are significant. Based on the calculation of pressing two sheets of paper per minute, the lifting platform needs to lift 2 to 6 tons of weight twice per minute, resulting in very high consumption of the lifting platform. Furthermore, in order to match the height of the feed trolley, the lifting platform must be installed in a pit, which is not conducive to future project modifications. Summary of the Invention

[0005] In order to solve the technical problems of easy wear and tear of the lifting mechanism of the paper holder in the prior art and the need to dig a pit for installation, which is not conducive to later modification, this application proposes an automatic paper laying mechanism for the press, which solves the above-mentioned technical problems.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] This utility model provides an automatic paper-laying mechanism for a press, comprising: a double-layer paper storage device for stacking and palletizing top and bottom paper stacks; and a paper-feeding transition device, comprising a paper-laying platform and a lifting mechanism disposed at the bottom of the paper-laying platform for controlling the lifting and moving of the paper-laying platform. The paper-laying platform is equipped with a beam that can move linearly in the horizontal direction, and a paper-suction assembly that can be lifted and moved is disposed on the beam. The paper-suction assembly moves horizontally along with the beam and enters above the top or bottom paper stack of the double-layer paper storage device to suck up a single sheet of top or bottom paper, and lays the sucked single sheet of top or bottom paper on the paper-laying platform for the press to pick up.

[0008] Furthermore, the double-layer paper storage device includes two sets of stacked paper receiving platforms. Each paper receiving platform includes: a frame, which is fixedly configured; a transverse adjusting beam, which is movably configured on the frame along the transverse direction; and a longitudinal receiving beam, which is movably configured on the transverse adjusting beam along the longitudinal direction of the frame to receive the top or bottom paper stacks.

[0009] Furthermore, the lateral adjustment beam is laterally movable on the frame via a lateral sliding module. The lateral adjustment beam is driven by a lateral adjustment cylinder, the cylinder body of which is horizontally mounted on the frame, and the piston rod of which is connected to the lateral adjustment beam.

[0010] Furthermore, the longitudinal supporting beams are in two sets, and the two sets of longitudinal supporting beams are arranged in parallel at both ends of the transverse adjusting beam in the transverse direction. The longitudinal supporting beams are longitudinally movable on the transverse adjusting beam through a longitudinal sliding module. The longitudinal supporting beams are driven by a longitudinal adjusting cylinder, the cylinder body of which is horizontally mounted on the transverse adjusting beam, and the piston rod of which is connected to the longitudinal supporting beam.

[0011] Furthermore, the paper-laying platform is equipped with multiple negative pressure suction ports to adsorb and position the single sheet of face paper or back paper laid on the paper-laying platform.

[0012] Furthermore, the beam frame is equipped with a self-rotating drive axle, and a rolling gear is fixed on the drive axle. Correspondingly, racks that cooperate with the rolling gears are arranged on both sides of the paper-laying platform. The rolling gears of the drive axle roll on the racks to push the beam frame to move horizontally on the paper-laying platform.

[0013] Furthermore, a motor is configured at one end of the beam frame, and a drive sprocket is configured on the output shaft of the motor. Correspondingly, a driven sprocket is fixed on the drive sprocket shaft, and the drive sprocket drives the driven sprocket through a chain.

[0014] Furthermore, guide blocks are provided at both ends of the beam frame, and correspondingly, guide strips that cooperate with the guide blocks are provided at both ends of the paper-laying platform.

[0015] Furthermore, the paper suction assembly includes a suction cup frame and a suction pipe disposed on the suction cup frame. The suction cup frame is driven by a lifting cylinder disposed on the beam frame. The cylinder body of the lifting cylinder is vertically disposed on the beam frame. The piston rod of the lifting cylinder is connected to the end of the suction cup frame away from the double-layer paper storage device. The suction pipe is disposed at the end of the suction cup frame near the double-layer paper storage device, and the suction pipe is provided with a plurality of suction cups for sucking up single sheets of face paper or bottom paper.

[0016] Furthermore, the paper-laying platform is equipped with an air-blowing pipe on the side facing the double-layer paper storage device. The air-blowing pipe is equipped with multiple air-blowing nozzles that blow air toward the face paper stack and the bottom paper stack, so as not to stick to the face paper or bottom paper stacked below when the paper-absorbing assembly picks up a single face paper or bottom paper.

[0017] Based on the above technical solution, the technical effects that this utility model can achieve are as follows:

[0018] The automatic paper-laying mechanism of this invention no longer uses a paper support frame to directly lift and lower the top and bottom paper stacks. Instead, it uses a paper-feeding transition device to pick up a single sheet of top or bottom paper from the double-layer paper storage device of the stacked top and bottom paper stacks. This sheet is then picked up by a horizontally moving suction nozzle on the press. The paper-feeding transition device only lays a single sheet of transitional top or bottom paper, instead of the entire top and bottom paper stacks. This significantly reduces the load on the lifting mechanism of the paper-feeding transition device, thereby reducing the lifting mechanism's energy consumption and extending its lifespan. In addition, since only one sheet of face paper or bottom paper is laid on the paper feeding transition device, the thickness of a single sheet of face paper or bottom paper is negligible compared to the thickness of the entire stack of face paper and bottom paper. When adjusting the height of the elevator on the paper feeding transition device to match the suction nozzle of the press, there is no need to consider the thickness of the sheet of face paper or bottom paper laid on the paper feeding transition device. This reduces the lifting range of the elevator relative to the press, so that the elevator of the paper feeding transition device does not need to dig a pit during installation, which is more conducive to the later modification of existing equipment. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the automatic paper-laying mechanism of the press of this utility model;

[0020] Figure 2 This is a schematic diagram of the double-layer paper storage device of this utility model;

[0021] Figure 3 This is a schematic diagram of the paper feeding transition device of this utility model;

[0022] Figure 4 This is a schematic diagram of the paper feeding transition device of this utility model after the paper laying platform is hidden;

[0023] Figure 5 This is a schematic diagram of the suction cup of the automatic paper-laying mechanism of the press of this utility model when it picks up the bottom paper;

[0024] Figure 6 This is a schematic diagram showing the suction cup of the automatic paper-laying mechanism of the press of this utility model laying the face paper or backing paper onto the paper-laying platform.

[0025] Figure 7 This is a schematic diagram of the suction cup of the automatic paper-laying mechanism of the press of this utility model when it picks up the face paper.

[0026] In this utility model:

[0027] 1-Double-layer paper storage device, 11-Paper storage receiving platform, 111-Frame, 112-Transverse adjustment beam, 113-Longitudinal receiving beam, 114-Transverse adjustment cylinder, 115-Longitudinal adjustment cylinder;

[0028] 2-Paper feeding transition device, 21-Paper laying platform, 211-Negative pressure suction port, 212-Rack, 213-Guide strip, 214-Blowing pipe, 215-Blowing nozzle, 22-Elevator, 23-Beam frame, 231-Drive wheel shaft, 232-Rolling gear, 233-Motor, 234-Drive sprocket, 235-Driven sprocket, 236-Guide block, 237-Lifting cylinder, 24-Paper suction assembly, 241-Suction cup frame, 242-Suction cup; 3-Press, 31-Suction nozzle. Detailed Implementation

[0029] 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. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0030] like Figure 1-7As shown, this utility model provides an automatic paper-laying mechanism for a press, including a double-layer paper storage device 1 and a paper-feeding transition device 2. The double-layer paper storage device 1 is fixedly configured for stacking and palletizing top and bottom paper stacks. The paper-feeding transition device 2 is configured next to the double-layer paper storage device 1 and the press 3. One side of the paper-feeding transition device 2 faces the double-layer paper storage device 1, and the adjacent side faces the paper-taking mechanism of the press 3. The paper-feeding transition device 2 includes a paper-laying platform 21 and a lifting mechanism 22 configured at the bottom of the paper-laying platform 21 for controlling the lifting and moving of the paper-laying platform 21. The paper-laying platform 21 is equipped with a beam 23 that can move linearly in the horizontal direction. The beam 23 is equipped with a paper-suction assembly 24 that can be lifted and moved. The paper-suction assembly 24 moves horizontally with the beam 23 and enters above the top or bottom paper stack of the double-layer paper storage device 1 to pick up a single sheet of top or bottom paper, and places the picked-up single sheet of top or bottom paper on the paper-laying platform 21 for the suction nozzle 31 of the press 3 to pick up.

[0031] In a specific embodiment of this utility model, the double-layer paper storage device 1 includes two sets of stacked paper receiving platforms 11. Each paper receiving platform 11 includes a fixed frame 111, a transverse adjustment beam 112, and a longitudinal receiving beam 113. The transverse adjustment beam 112 is movably arranged on the frame 111 along the transverse direction of the frame 111, and the longitudinal receiving beam 113 is movably arranged on the transverse adjustment beam 112 along the longitudinal direction of the frame 111 to receive the top or bottom paper stacks. The longitudinal receiving beam 113, which directly receives the top or bottom paper stacks, can move in both the transverse and longitudinal directions on the frame 111, thereby cooperating with the forklift to receive the top or bottom paper stacks. In this way, no matter where the top or bottom paper stacks delivered by the forklift are stacked on the frame 111, the longitudinal receiving beam 113 can be adjusted to make the top or bottom paper stacks reach the predetermined suction position to cooperate with the suction action of the paper suction assembly 24 of the paper feeding transition device 2.

[0032] Furthermore, the transverse adjusting beam 112 is a frame-shaped structural component. The transverse adjusting beam 112 is laterally movable on the frame 111 via a transverse sliding module. The transverse adjusting beam 112 is driven by a transverse adjusting cylinder 114, the cylinder body of which is horizontally mounted on the frame 111, and the piston rod of the transverse adjusting cylinder 114 is connected to the transverse adjusting beam 112. There are two sets of longitudinal supporting beams 113, arranged parallel to each other at both ends of the transverse adjusting beam 112 in the transverse direction. The longitudinal supporting beams 113 are longitudinally movable on the transverse adjusting beam 112 via a longitudinal sliding module. The longitudinal supporting beams 113 are driven by a longitudinal adjusting cylinder 115, the cylinder body of which is horizontally mounted on the transverse adjusting beam 112, and the piston rod of the longitudinal adjusting cylinder 115 is connected to the longitudinal supporting beam 113. Both the transverse and longitudinal sliding modules include cooperating slide rails and sliders.

[0033] In order to keep the single sheet of face paper or backing paper laid on the paper laying platform 21 in place before being removed by the press 3, the paper laying platform 21 is equipped with multiple negative pressure suction ports 211 to adsorb and position the single sheet of face paper or backing paper laid on the paper laying platform 21.

[0034] In one specific embodiment of this utility model, a self-rotating drive shaft 231 is arranged on the beam frame 23. The drive shaft 231 extends laterally through the beam frame 23. Two sets of rolling gears 232 are fixed on the drive shaft 231. Correspondingly, two sets of racks 212 that cooperate with the rolling gears 232 are arranged on both sides of the paper-laying platform 21. The rolling gears 232 of the drive shaft 231 roll on the racks 212 to push the beam frame 23 to move horizontally on the paper-laying platform 21.

[0035] Specifically, connecting blocks are configured at both ends of the beam frame 23. A motor 233 is fixed on one of the connecting blocks, and a drive sprocket 234 is configured on the output shaft of the motor 233. At the same time, the position where the drive wheel shaft 231 passes through the beam frame 23 is formed on the connecting block, and a bearing seat is configured at this position for the drive wheel shaft 231 to pass through. A driven sprocket 235 is fixed on one end of the drive wheel shaft 231. The drive sprocket 234 drives the driven sprocket 235 through a chain, so that the drive wheel shaft 231 can move on the rack 212.

[0036] Furthermore, guide blocks 236 are provided at both ends of the beam frame 23, and correspondingly, guide strips 213 that cooperate with the guide blocks 236 are provided at both ends of the paper-laying platform 21 to ensure that the beam frame 23 moves horizontally in a straight line on the paper-laying platform 21.

[0037] In one specific embodiment of this utility model, the paper suction assembly 24 includes a suction cup frame 241 and a suction pipe disposed on the suction cup frame 241. The suction cup frame 241 is driven by a lifting cylinder 237 disposed on a beam frame 23. The cylinder body of the lifting cylinder 237 is vertically disposed on the beam frame 23. The suction cup frame 241 includes a vertical plate at one end away from the double-layer paper storage device 1 and a horizontal plate connected to the bottom of the vertical plate. The piston rod of the lifting cylinder 237 is connected to the vertical plate. The beam frame 23 and the vertical plate are provided with mutually cooperating slide rails and sliders to ensure the linear movement of the suction cup frame 241 in the vertical direction. The suction pipe is disposed at one end of the horizontal plate near the double-layer paper storage device 1, and a plurality of suction cups 242 for sucking up single sheets of face paper or bottom paper are disposed on the suction pipe. The suction cups 242 are preferably retractable corrugated suction cups 242 to buffer when sucking up single sheets of face paper or bottom paper and extend the life of the suction cups 242.

[0038] To prevent paper from sticking together, the paper-laying platform 21 is provided with an air pipe 214 on the side facing the double-layer paper storage device 1. The air pipe 214 is provided with multiple air nozzles 215 that blow air toward the face paper stack and the bottom paper stack, so that the face paper or bottom paper stacked below does not stick together when the paper suction assembly 24 picks up a single face paper or bottom paper.

[0039] The automatic paper-laying mechanism of the press of this utility model operates as follows: The elevator 22 moves to control the suction cup 242 of the paper-laying platform 21 to be slightly higher than the top or bottom paper stack. The beam 23 moves horizontally and linearly to control the suction cup 242 to move to the space above the top or bottom paper stack. The elevator 22 moves again to lower the suction cup 242 to a position closer to the top or bottom paper stack. The suction cup 242 picks up the top sheet of top or bottom paper from the top or bottom paper stack. The lifting cylinder 237 moves to control the suction cup 242 to lift the picked-up sheet of top or bottom paper. At the same time, the air nozzle 215 blows air towards the suction point of the suction cup 242 to prevent the suction cup 242 from picking up multiple sheets of paper. 23. The suction cup 242, which has picked up the paper, moves horizontally and linearly to the paper-laying platform 21. The lifting cylinder 237 lowers the suction cup 242, bringing the picked-up face paper or backing paper closer to the paper-laying platform 21. The suction cup 242 is released. At the same time, the negative pressure suction port 211 on the paper-laying platform 21 opens. The picked-up face paper or backing paper falls onto the paper-laying platform 21 and is sucked and positioned by the negative pressure suction port 211. The lifting machine 22 controls the height of the paper-laying platform 21 to match the press 3. The suction nozzle 31 of the press 3 moves horizontally to the paper-laying platform 21 and removes the face paper or backing paper laid on the paper-laying platform 21, completing the single face paper or backing paper picking and feeding process.

[0040] It should be understood that the specific embodiments described above are only for explaining the present invention and are not intended to limit the present invention. Obvious variations or modifications derived from the spirit of the present invention are still within the protection scope of the present invention.

Claims

1. An automatic paper-laying mechanism for a press, characterized in that, include: A double-layer paper storage device (1) is used for stacking and stacking top and bottom paper stacks; The paper feeding transition device (2) includes a paper laying platform (21) and a lift (22) configured at the bottom of the paper laying platform (21) for controlling the lifting and moving of the paper laying platform (21). The paper laying platform (21) is equipped with a beam frame (23) that can move linearly in the horizontal direction. The beam frame (23) is equipped with a paper suction assembly (24) that can be lifted and moved. The paper suction assembly (24) moves horizontally with the beam frame (23) and enters the top or bottom stack of the double-layer paper storage device (1) to pick up a single sheet of top or bottom paper and lays the picked-up single sheet of top or bottom paper on the paper laying platform (21) for the press (3) to take away.

2. The automatic paper-laying mechanism of the press according to claim 1, characterized in that, The double-layer paper storage device (1) includes two sets of stacked paper receiving platforms (11), each comprising: A frame (111), wherein the frame (111) is fixedly configured; A transverse adjustment beam (112) is movably disposed on the frame (111) along the transverse direction of the frame (111); A longitudinal support beam (113) is movably disposed on the transverse adjustment beam (112) along the longitudinal direction of the frame (111) to support the top or bottom stack of paper.

3. The automatic paper-laying mechanism of the press according to claim 2, characterized in that, The transverse adjustment beam (112) is movably mounted on the frame (111) via a transverse sliding module. The transverse adjustment beam (112) is driven by a transverse adjustment cylinder (114). The cylinder body of the transverse adjustment cylinder (114) is horizontally mounted on the frame (111), and the piston rod of the transverse adjustment cylinder (114) is connected to the transverse adjustment beam (112).

4. The automatic paper-laying mechanism of the press according to claim 3, characterized in that, The longitudinal support beams (113) are in two sets, and the two sets of longitudinal support beams (113) are arranged in parallel at both ends of the transverse adjustment beam (112) in the transverse direction. The longitudinal support beams (113) are longitudinally movable on the transverse adjustment beam (112) through a longitudinal sliding module. The longitudinal support beams (113) are driven by a longitudinal adjustment cylinder (115). The cylinder body of the longitudinal adjustment cylinder (115) is horizontally mounted on the transverse adjustment beam (112), and the piston rod of the longitudinal adjustment cylinder (115) is connected to the longitudinal support beams (113).

5. The automatic paper-laying mechanism of the press according to claim 1, characterized in that, The paper-laying platform (21) is equipped with multiple negative pressure air inlets (211) to adsorb and position the single sheet of face paper or back paper laid on the paper-laying platform (21).

6. The automatic paper-laying mechanism of the press according to claim 1, characterized in that, The beam frame (23) is equipped with a self-rotating drive shaft (231), and a rolling gear (232) is fixed on the drive shaft (231). Correspondingly, racks (212) that cooperate with the rolling gear (232) are arranged on both sides of the paper-laying platform (21). The rolling gear (232) of the drive shaft (231) rolls on the rack (212) to push the beam frame (23) to move horizontally on the paper-laying platform (21).

7. The automatic paper-laying mechanism of the press according to claim 6, characterized in that, A motor (233) is provided at one end of the beam frame (23), and a drive sprocket (234) is provided on the output shaft of the motor (233). Correspondingly, a driven sprocket (235) is fixed on the drive wheel shaft (231), and the drive sprocket (234) drives the driven sprocket (235) through a chain.

8. The automatic paper-laying mechanism of the press according to claim 6, characterized in that, The beam frame (23) is also equipped with guide blocks (236) at both ends, and correspondingly, the paper-laying platform (21) is equipped with guide strips (213) that cooperate with the guide blocks (236) at both ends.

9. The automatic paper-laying mechanism of the press according to claim 1, characterized in that, The paper suction assembly (24) includes a suction cup frame (241) and a suction pipe disposed on the suction cup frame (241). The suction cup frame (241) is driven by a lifting cylinder (237) disposed on the beam frame (23). The cylinder body of the lifting cylinder (237) is vertically disposed on the beam frame (23). The piston rod of the lifting cylinder (237) is connected to the end of the suction cup frame (241) away from the double-layer paper storage device (1). The suction pipe is disposed at the end of the suction cup frame (241) close to the double-layer paper storage device (1), and the suction pipe is provided with a plurality of suction cups (242) for sucking up single sheets of face paper or bottom paper.

10. The automatic paper-laying mechanism of the press according to claim 1, characterized in that, The paper-laying platform (21) is provided with an air pipe (214) on the side facing the double-layer paper storage device (1). The air pipe (214) is provided with a plurality of air nozzles (215) for blowing air toward the top and bottom paper stacks so as not to stick to the top or bottom paper stacks when the paper suction assembly (24) sucks up a single sheet of top or bottom paper.

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