A flatting adsorption conveyor belt

Abstract

The utility model relates to the technical field of conveyer belt, especially a flat adsorption conveyer belt, including two symmetrical support frames, the top fixedly connected with the bottom plate of two support frames, the both sides of bottom plate all are fixedly installed with the side plate through bolt, the utility model has the advantages of: through the cooperation design of guide frame and breathable conveyer belt, the problem that traditional negative pressure adsorption system is poor in adaptability to art paper is solved, when the special paper enters the conveyer belt, the uniform negative pressure is produced through the slot of guide frame of exhaust fan, makes the stable adsorption force field of the surface of breathable conveyer belt. The bidirectional screw rod drives the driving plate to move under the drive of first motor, makes L type spacing stopper automatically adjust the interval according to the paper width, ensures the uniformity of edge adsorption force. This dynamic adjustment adsorption system can adapt to the paper of different texture and thickness, still can keep the positioning accuracy of high precision under the condition of high -speed operation, solves the paper displacement problem of traditional equipment because of vacuum leakage.

Description

Technical Field

[0001] This utility model relates to the field of conveyor belt technology, and in particular to a flattening adsorption conveyor belt. Background Technology

[0002] The flattening and adsorption conveyor belt is a specialized conveying device for printing and processing specialty papers (such as artistic textured paper, embossed paper, and metallic foil paper). Its core function is to ensure stable paper transport during high-precision printing through the synergistic effect of negative pressure adsorption and mechanical flattening. This conveyor belt typically consists of a porous adsorption belt, a negative pressure generator, flattening rollers, and a correction mechanism. The porous adsorption belt has micropores distributed on its surface, which adsorb and fix the paper through negative pressure, preventing it from shifting or warping during high-speed transport. The flattening rollers dynamically flatten the paper, eliminating the impact of surface unevenness on print quality. This type of equipment is widely used in high-end packaging, art printing, and anti-counterfeiting labels, effectively solving the problem of unstable transport caused by the surface texture or material characteristics of specialty papers, and improving printing registration accuracy and yield.

[0003] Traditional negative pressure adsorption systems are poorly adapted to art papers with uneven surfaces (such as embossed paper and textured paper). Vacuum leaks easily occur at the uneven parts of the paper, leading to a sharp drop in local adsorption force. When the conveyor belt is running at high speed, the edges of the paper shift due to weak adsorption, which seriously affects the registration accuracy of multi-color printing. Therefore, a flattening adsorption conveyor belt is needed to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to at least solve one of the aforementioned technical defects.

[0005] Therefore, one objective of this utility model is to propose a flattening adsorption conveyor belt to solve the problems mentioned in the background art and overcome the shortcomings of the existing technology.

[0006] To achieve the above objectives, one embodiment of this utility model provides a flattening adsorption conveyor belt, comprising two symmetrically arranged support frames. A base plate is fixedly connected to the top of each support frame. Side plates are bolted to both the front and rear sides of the base plate. A drive roller and a driven roller are rotatably connected between the two side plates via bearings. A breathable conveyor belt is arranged between the drive roller and the driven roller. An air guide frame is bolted to the two side plates. The top and bottom surfaces of the air guide frame are in contact with the inner wall of the breathable conveyor belt. Two symmetrically arranged exhaust fans are fixedly connected to the outer sides of the side plates. The input end of the exhaust fan is connected to the air guide frame. Two symmetrically arranged connecting plates are fixedly connected to the bottom surface of the base plate. A bidirectional lead screw is rotatably connected between the two connecting plates through a bearing. A first motor is fixedly connected to one end of the bidirectional lead screw. The body of the first motor is fixedly connected to the connecting plate. Two symmetrically arranged drive plates are threadedly connected to the outer surface of the bidirectional lead screw. Two symmetrically arranged U-shaped frames are fixedly connected to one side of each drive plate. An L-shaped limiting frame is fixedly connected to the end of the U-shaped frame away from the drive plate. The bottom of the two L-shaped limiting frames is in contact with the outer surface of the ventilation conveyor belt.

[0007] Preferably, in any of the above solutions, two symmetrically arranged electric push rods are fixedly connected to the outer side of each side plate, and a lifting frame is fixedly connected to the output end of each pair of corresponding electric push rods. A pressure roller is rotatably connected inside each lifting frame via a bearing, and both pressure rollers are located directly above the breathable conveyor belt.

[0008] Preferably, in any of the above solutions, the bottom surface of the lifting frame is fixedly connected with a plurality of symmetrically arranged limiting posts, and the limiting posts are slidably connected to the side plate.

[0009] Preferably, in any of the above embodiments, a second motor is fixedly connected to the outer side of the side plate, and the output end of the second motor is fixedly connected to the drive roller.

[0010] Preferably, one side of each of the above solutions has two symmetrically arranged connecting slots, and both of the U-shaped frames are slidably connected to the connecting plates through the connecting slots.

[0011] Preferably, in any of the above embodiments, the top of the air guide frame is provided with a plurality of linearly arrayed slots, and the plurality of slots are connected to the exhaust fan through the air guide frame.

[0012] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows:

[0013] 1. This flattening and adsorption conveyor belt effectively solves the problem of poor adaptability to art paper in traditional negative pressure adsorption systems through the coordinated design of the air guide frame and the breathable conveyor belt. When special paper enters the conveyor belt, the exhaust fan generates uniform negative pressure through the slots in the air guide frame, creating a stable adsorption force field on the surface of the breathable conveyor belt. A bidirectional lead screw, driven by a first motor, moves the drive plate, causing the L-shaped limit frame to automatically adjust its spacing according to the paper width, ensuring uniform edge adsorption force. This dynamically adjustable adsorption system can adapt to papers of different textures and thicknesses, maintaining high positioning accuracy even under high-speed operation, completely solving the paper displacement problem caused by vacuum leakage in traditional equipment.

[0014] 2. The conveyor belt's pressure rollers feature an intelligent pressure adjustment design, achieving precise paper flattening. During operation, an electric push rod automatically adjusts the height of the lifting frame according to the paper thickness, and limit posts ensure the pressure rollers remain horizontal. A second motor drives the pressure rollers to rotate at a speed synchronized with the ventilated conveyor belt, avoiding surface friction. The two pressure rollers are arranged front and back; the front pressure roller pre-flattens the raised areas on the paper surface, while the rear pressure roller performs precision pressing, ensuring that high-textured paper maintains its original texture while meeting printing flatness requirements. This graded flattening method protects the special processes on the paper surface and controls the paper flatness within the allowable printing range, significantly improving the yield of high-end printed products. Attached Figure Description

[0015] Figure 1 This is a first-view structural diagram of the assembly of this utility model;

[0016] Figure 2 This is a second-view structural diagram of the assembly of this utility model;

[0017] Figure 3 This is a cross-sectional structural diagram of the assembly of this utility model;

[0018] Figure 4 This is a schematic diagram of the air guide frame of this utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the base plate of this utility model.

[0020] In the diagram: 1-Support frame, 2-Base plate, 3-Side plate, 4-Drive roller, 5-Driven roller, 6-Ventilating conveyor belt, 7-Air guide frame, 8-Exhaust fan, 9-Connecting plate, 10-Double-actuated screw, 11-First motor, 12-Drive plate, 13-U-shaped frame, 14-L-shaped limit frame, 15-Electric push rod, 16-Lifting frame, 17-Pressure roller, 18-Limiting column, 19-Second motor, 20-Connecting groove, 21-Groove opening. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited thereto.

[0022] like Figures 1 to 5 As shown, a flattening adsorption conveyor belt includes two symmetrically arranged support frames 1. A base plate 2 is fixedly connected to the top of the two support frames 1. Side plates 3 are fixedly installed on the front and rear sides of the base plate 2 by bolts. A drive roller 4 and a driven roller 5 are rotatably connected between the two side plates 3 via bearings. A breathable conveyor belt 6 is arranged between the drive roller 4 and the driven roller 5. An air guide frame 7 is fixedly connected between the two side plates 3 by bolts. The top and bottom surfaces of the air guide frame 7 are in contact with the inner wall of the breathable conveyor belt 6. Two symmetrically arranged exhaust fans 8 are fixedly connected to the outer side of the side plates 3. The input ends of the two exhaust fans 8 are connected to the air guide frame 7. The bottom surface of the base plate 2 is fixedly connected to two symmetrically arranged connecting plates 9. A bidirectional lead screw 10 is rotatably connected between the two connecting plates 9 via bearings. A first motor 11 is fixedly connected to one end of the bidirectional lead screw 10. The body of the first motor 11 is fixedly connected to the connecting plate 9. Two symmetrically arranged drive plates 12 are threadedly connected to the outer surface of the bidirectional lead screw 10. Two symmetrically arranged U-shaped frames 13 are fixedly connected to one side of each drive plate 12. An L-shaped limiting frame 14 is fixedly connected to the end of the U-shaped frame 13 away from the drive plate 12. The bottom of the two L-shaped limiting frames 14 are in contact with the outer surface of the breathable conveyor belt 6.

[0023] As an optional technical solution of this utility model, two symmetrically arranged electric push rods 15 are fixedly connected to the outer side of each side plate 3. The output end of each pair of front and rear corresponding electric push rods 15 is fixedly connected to a lifting frame 16. A pressure roller 17 is rotatably connected inside each lifting frame 16 through a bearing. Both pressure rollers 17 are located directly above the breathable conveyor belt 6. The cooperative design of the electric push rods 15 and the lifting frame 16 realizes the height adjustment of the pressure roller 17, which can automatically adjust the pressing force according to different paper thicknesses, ensuring the flattening effect while avoiding damage to the paper surface. The front and rear arrangement of the two pressure rollers 17 forms a graded flattening system, which improves the flattening accuracy.

[0024] As an optional technical solution of this utility model, the bottom surface of the lifting frame 16 is fixedly connected with a number of symmetrically arranged limiting posts 18. The limiting posts 18 are slidably connected to the side plate 3. The setting of the limiting posts 18 makes the lifting frame 16 stable during vertical movement, prevents the pressure roller 17 from shifting or tilting during the pressing process, ensures that the pressing force is evenly distributed, and improves the durability and reliability of the lifting mechanism.

[0025] As an optional technical solution of this utility model, a second motor 19 is fixedly connected to the outer side of the side plate 3. The output end of the second motor 19 is fixedly connected to the drive roller 4. The design of the second motor 19 directly driving the drive roller 4 ensures transmission efficiency, avoids the slippage risk of traditional belt transmission, and makes the running speed of the breathable conveyor belt 6 more stable and controllable, adapting to the speed requirements of different printing processes.

[0026] As an optional technical solution of this utility model, two symmetrically arranged connecting grooves 20 are opened through one side of each connecting plate 9. Both U-shaped frames 13 are slidably connected to the connecting plate 9 through the connecting grooves 20. The connecting grooves 20 provide a precise sliding track for the U-shaped frames 13, ensuring that the L-shaped limit frame 14 can move smoothly when driven by the bidirectional lead screw 10, realizing the synchronous adjustment of the limit mechanisms on both sides of the conveyor belt, and improving the adaptability of the equipment to paper of different widths.

[0027] As an optional technical solution of this utility model, the top of the air guide frame 7 is provided with a number of linear array slots 21. The number of slots 21 are connected to the exhaust fan 8 through the air guide frame 7. The linear array slots 21 design enables the air guide frame 7 to generate a uniformly distributed negative pressure airflow, which forms a stable adsorption force field through the breathable conveyor belt 6, effectively solving the problem of paper displacement caused by uneven pressure in traditional adsorption systems.

[0028] A flattening adsorption conveyor belt works on the following principle:

[0029] 1): When special paper enters the conveyor belt, the exhaust fan 8 generates a uniform negative pressure through the slot 21 of the air guide frame 7, so that a stable adsorption force field is formed on the surface of the breathable conveyor belt 6.

[0030] 2): The bidirectional lead screw 10 drives the drive plate 12 to move under the drive of the first motor 11, so that the L-shaped limit frame 14 automatically adjusts the spacing according to the width of the paper to ensure uniform edge adsorption force.

[0031] 3) The electric push rod 15 automatically adjusts the height of the lifting frame 16 according to the paper thickness, and the limit post 18 ensures that the pressure roller 17 remains horizontal. The second motor 19 drives the pressure roller 17 to rotate at a speed synchronized with the air-permeable conveyor belt 6 to avoid surface friction. The two pressure rollers 17 are arranged one in front of the other. The front pressure roller pre-presses the raised surface of the paper and the rear pressure roller performs fine pressing.

[0032] In summary, this flattening and adsorption conveyor belt, through the coordinated design of the air guide frame 7 and the breathable conveyor belt 6, effectively solves the problem of poor adaptability of traditional negative pressure adsorption systems to art paper. When special paper enters the conveyor belt, the exhaust fan 8 generates uniform negative pressure through the slot 21 of the air guide frame 7, forming a stable adsorption force field on the surface of the breathable conveyor belt 6. The bidirectional lead screw 10, driven by the first motor 11, moves the drive plate 12, causing the L-shaped limit frame 14 to automatically adjust the spacing according to the paper width, ensuring uniform edge adsorption force. This dynamically adjustable adsorption system can adapt to papers with different textures and thicknesses, maintaining high positioning accuracy even under high-speed operation, completely solving the paper displacement problem caused by vacuum leakage in traditional equipment. The pressure roller 17 adopts an intelligent pressure adjustment design, achieving precise flattening of the paper. During operation, the electric push rod 15 automatically adjusts the height of the lifting frame 16 according to the paper thickness, and the limit post 18 ensures that the pressure roller 17 remains horizontal. The second motor 19 drives the pressure roller 17 to rotate at a speed synchronized with the breathable conveyor belt 6, avoiding surface friction. Two pressure rollers 17 are arranged one in front of the other. The front pressure roller pre-flattens the raised surface of the paper, while the rear pressure roller performs fine pressing, so that the high-textured paper can achieve the required flatness for printing while maintaining its original texture. This graded flattening method not only protects the special process of the paper surface, but also controls the flatness of the paper within the allowable range for printing, significantly improving the yield of high-end printed products.

Claims

1. A flattening adsorption conveyor belt, characterized in that: The device includes two symmetrically arranged support frames. A base plate is fixedly connected to the top of each support frame. Side plates are bolted to both the front and rear sides of the base plate. A drive roller and a driven roller are rotatably connected between the two side plates via bearings. A permeable conveyor belt is positioned between the drive roller and the driven roller. An air guide frame is bolted to the two side plates. The top and bottom surfaces of the air guide frame are in contact with the inner wall of the permeable conveyor belt. Two symmetrically arranged exhaust fans are fixedly connected to the outer sides of the side plates. The input ends of both exhaust fans are connected to the air guide frame. The bottom surface of the base plate is fixedly connected to two symmetrically arranged connecting plates. A bidirectional lead screw is rotatably connected between the two connecting plates via bearings. A first motor is fixedly connected to one end of the bidirectional lead screw. The body of the first motor is fixedly connected to the connecting plate. Two symmetrically arranged drive plates are threadedly connected to the outer surface of the bidirectional lead screw. Two symmetrically arranged U-shaped frames are fixedly connected to one side of each drive plate. An L-shaped limiting frame is fixedly connected to the end of the U-shaped frame away from the drive plate. The bottom of both L-shaped limiting frames is in contact with the outer surface of the breathable conveyor belt.

2. The flattening adsorption conveyor belt according to claim 1, characterized in that: Two symmetrically arranged electric push rods are fixedly connected to the outer side of each side plate. A lifting frame is fixedly connected to the output end of each pair of corresponding electric push rods. A pressure roller is rotatably connected inside each lifting frame via a bearing. Both pressure rollers are located directly above the breathable conveyor belt.

3. The flattening adsorption conveyor belt according to claim 2, characterized in that: The bottom surface of the lifting frame is fixedly connected with several symmetrically arranged limiting posts, and the limiting posts are slidably connected to the side plates.

4. The flattening adsorption conveyor belt according to claim 3, characterized in that: A second motor is fixedly connected to the outer side of the side plate, and the output end of the second motor is fixedly connected to the drive roller.

5. The flattening adsorption conveyor belt according to claim 4, characterized in that: Two symmetrically arranged connecting slots are opened through one side of each connecting plate, and both U-shaped frames are slidably connected to the connecting plate through the connecting slots.

6. The flattening adsorption conveyor belt according to claim 5, characterized in that: The top of the air guide frame has a series of linearly arrayed slots, which are connected to the exhaust fan through the air guide frame.

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