Paper material deviation identification structure of chain type transmission paper feeding equipment

Abstract

The utility model relates to the technical field of packaging paper feeding and cutting, and discloses a paper material deviation identification structure of chain type transmission paper feeding equipment, which comprises a reinforcing plate arranged on a rack, a connecting frame is arranged on one side of the reinforcing plate, transparent plates are arranged at two ends of one side, close to the reinforcing plate, of the connecting frame, and the transparent plates are connected with the reinforcing plate. A connecting plate is arranged on one side of the transparent plate, a camera module is arranged on the lower portion of the transparent plate, and the camera module completes paper deviation recognition by shooting position limit points of paper. According to the utility model, the identification camera moving platform which is synchronously driven by the double-side offset transmission motor and is matched with closed-loop control is adopted to realize + / -0.1 mm level real-time position tracking and capture 2000fps high-speed displacement change, the rotary cylinder drives the light shielding plate and the identification camera to form time sequence linkage, and the ambient light interference is reduced to below 50Lux by dynamically adjusting the light shielding angle, so that the real-time position tracking is realized. And the signal-to-noise ratio of the image is not less than 35dB.

Description

Technical Field

[0001] This utility model relates to the technical field of packaging paper feeding and cutting, and more specifically, to a paper material misalignment identification structure for a chain-driven paper feeding device. Background Technology

[0002] The cutting machine is used for directional cutting of pre-planned cutting paths and content. These cutting paths and content have been written into software and stored by software engineers. The corresponding file QR code is printed on the paper to be cut. Before cutting, the machine has a movable part carrying cutting blades, creasing blades, and video detection cameras. During the inspection process, the machine reads the QR code to retrieve the stored cutting content and cutting path, and then starts to execute the program to perform cutting, creasing, and other work until the work is completed.

[0003] Existing packaging paper materials are all cut by slitting, which can easily damage the graffiti surface and affect the packaging quality after cutting. In addition, the existing structure is relatively simple, which makes it easy to deviate and the paper feeding accuracy is poor, which cannot meet the accuracy requirements of packaging paper feeding and cutting. Utility Model Content

[0004] The purpose of this invention is to provide a paper offset recognition structure for a chain-driven paper feeding device. It adopts a dual-sided offset drive motor synchronous drive and a closed-loop controlled recognition camera moving platform to achieve real-time position tracking at the ±0.1mm level and capture high-speed displacement changes at 2000fps, aiming to solve the problems in the prior art.

[0005] This utility model is implemented as follows: the paper material deviation identification structure of the chain-driven paper feeding equipment includes a reinforcing plate set on the frame, a connecting frame set on one side of the reinforcing plate, transparent plates set at both ends of the connecting frame near the reinforcing plate, a connecting plate set on one side of the transparent plate, and a camera module set at the lower part of the transparent plate. The camera module completes the paper material deviation identification by photographing the position limit point of the paper material.

[0006] Furthermore, offset drive motors are respectively provided on both sides of the connecting frame, and the output ends of the offset drive motors are connected to offset identification conveyor belts. One end of each of the two offset identification conveyor belts is connected to the offset driven wheel.

[0007] Furthermore, each of the two offset recognition conveyor belts is fixed with a connecting seat, and a camera module is provided on the connecting seat. The camera module includes a recognition camera, which looks upward through a transparent plate to identify the offset state of the adsorbed paper.

[0008] Furthermore, an extension block is provided on one side of the connecting seat, and a rotary cylinder is provided on the extension block. The rotary cylinder passes through the connecting plate and has a rotating plate at its end.

[0009] Furthermore, when the recognition camera looks up through the transparent plate to identify the misalignment of the adsorbed paper, the rotating plate rotates to be above the recognition camera to reduce the loss of recognition light from the recognition camera. After the recognition camera completes the recognition, the rotating cylinder drives the rotating plate to rise and rotate, waiting for the next piece of paper to enter for misalignment recognition.

[0010] Furthermore, a guide rail adapted to the movement of the connecting seat is provided on one side of the reinforcing plate, and a matching guide seat is provided on the guide rail. The guide seat is fixed to the connecting seat to limit the displacement of the connecting seat and prevent the displacement of the connecting seat from deviating.

[0011] Compared with existing technologies ， The paper misalignment identification structure of the chain-driven paper feeding device provided by this utility model has the following beneficial effects:

[0012] 1. The dual-sided offset drive motor synchronous drive, combined with the closed-loop control recognition camera moving platform, achieves real-time position tracking at the ±0.1mm level and can capture high-speed displacement changes at 2000fps. The rotary cylinder drives the light shield to form a time-series linkage with the recognition camera. By dynamically adjusting the light shielding angle, the ambient light interference is reduced to below 50Lux, ensuring an image signal-to-noise ratio ≥35dB.

[0013] 2. The integrated connector is equipped with an industrial-grade recognition camera and a light-shielding component, forming an independent functional module. The guide rail-guide seat system and servo motor form a high-rigidity motion mechanism, which, together with the laser encoder, achieves closed-loop correction of spatial coordinates, with a position repeatability accuracy of ±0.005mm. Attached Figure Description

[0014] Figure 1 A schematic diagram of the front of the chain-driven paper feeding mechanism;

[0015] Figure 2 This is a schematic diagram of the rear structure of the chain-driven paper feeding mechanism;

[0016] Figure 3 This is a perspective view of the palletizing and lifting mechanism in a chain-driven paper feeding mechanism.

[0017] Figure 4 This is a side view of the palletizing and lifting mechanism in a chain-driven paper feeding mechanism.

[0018] Figure 5 A schematic diagram of the base of the chain-driven paper feeding mechanism;

[0019] Figure 6 This is a schematic diagram of the adsorption transmission mechanism in a chain-driven paper feeding mechanism.

[0020] Figure 7 This is a schematic diagram of the suction cup arrangement in the adsorption transmission mechanism of a chain-driven paper feeding mechanism.

[0021] Figure 8 This is a schematic diagram of the peeling mechanism in a chain-driven paper feeding mechanism.

[0022] Figure 9 An exploded view of the stripping mechanism in a chain-driven paper feeding mechanism;

[0023] Figure 10 This is a schematic diagram of the back structure of the peeling mechanism in a chain-driven paper feeding mechanism.

[0024] Figure 11 This is a top view schematic diagram of the paper misalignment identification structure of the chain-driven paper feeding device proposed in this utility model.

[0025] Figure 12 This is a schematic diagram of the internal structure of the paper misalignment identification structure of the chain-driven paper feeding device proposed in this utility model.

[0026] Figure 13 This is a schematic diagram of the bottom structure of the paper misalignment identification structure of the chain-driven paper feeding device proposed in this utility model.

[0027] Figure 14 This is a schematic diagram of the rotary cylinder structure of the paper offset identification structure of the chain-driven paper feeding device proposed in this utility model.

[0028] Figure 15 A schematic diagram of the paper structure cut by a chain-driven paper feeding device.

[0029] In the diagram: 1-Frame, 11-Column, 12-Base limiting groove, 13-Reinforcing beam, 14-Universal roller seat;

[0030] 2-Platformer lifting mechanism, 21-Servo drive, 22-Transmission rod, 23-Pull gear, 24-Second extension gear, 25-Transmission chain, 26-Base, 27-Through groove, 28-Fixed seat, 29-Limit wheel, 210-Chain fixing part;

[0031] 3-Adsorption transmission mechanism, 31-Mounting frame, 32-Limiting post, 33-Adsorption limiting groove, 34-Adsorption transmission motor, 35-Conveyor belt, 36-Driven wheel, 37-Fixed frame, 38-Connecting piece, 39-Adsorption transmission limiting wheel, 310-Adsorption plate, 311-Pneumatic actuator, 312-Suction cup, 313-Lifting cylinder;

[0032] 4-Stripping mechanism, 41-Isolation plate, 42-Air outlet groove, 43-Stripping plate, 44-Stripping spring, 45-Connecting pipe, 46-Air inlet, 47-Air outlet, 48-Airflow cleaner;

[0033] 5-Offset recognition mechanism, 51-Connecting frame, 52-Transparent plate, 53-Connecting plate, 54-Offset drive motor, 55-Offset recognition conveyor belt, 56-Offset driven wheel, 57-Connecting seat, 58-Recognition camera, 59-Extension block, 510-Rotary cylinder, 511-Rotating plate, 512-Guide rail, 513-Guide seat, 514-Reinforcing plate. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0035] The implementation of this utility model will be described in detail below with reference to specific embodiments.

[0036] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0037] Reference Figure 1-14 As shown, the chain-driven paper feeding mechanism includes a frame 1, and a palletizing lifting mechanism 2 is installed inside the frame 1. The palletizing lifting mechanism 2 drives the base 26 inside the frame 1 to move up and down, and adjusts the height of the base 26 as the pallet is continuously cut and reduced.

[0038] An adsorption transmission mechanism 3 is provided on the upper side of one side of the frame 1. The adsorption transmission mechanism 3 moves on the frame 1 to extract the back-cut and stacked paper on the base 26.

[0039] A peeling mechanism 4 is provided on the frame 1 between the adsorption transmission mechanism 3 and the back-cut stacked paper. The peeling mechanism 4 peels off multiple sheets of back-cut stacked paper to prevent multiple sheets of paper from entering the cutting table.

[0040] Reference Figure 15As shown, an offset recognition mechanism 5 is provided on one side of the peeling mechanism 4. The offset recognition mechanism 5 determines the position of the paper being picked up. The paper has QR code information and position limit points. The offset recognition mechanism 5 first completes the recognition of the position limit points at both ends of the front side, and then performs the recognition of the position limit points at both ends of the rear side after the paper moves. After the paper's orientation is determined after the recognition is completed, the identified paper offset information is sent to the cutting machine. The cutting machine cuts the paper according to the obtained paper offset information.

[0041] In this embodiment, the frame 1 includes four columns 11 arranged on the four sides of the base 26. Multiple reinforcing beams 13 are provided above and below the columns 11. The reinforcing beams 13 complete the connection and fixation between adjacent columns 11. Multiple universal roller seats 14 are arranged in sequence on the lower side of the frame 1 and the base 26 is provided with through slots 27 that are adapted to the universal roller seats 14. When stacking and feeding on the base 26, the stack is first placed on the base, and then the height of the base 26 is adjusted so that the universal roller seats 14 pass through the through slots 27 and contact the stack. At this time, under the action of the universal roller seats 14, the stack can be moved on the base 26 to ensure that the adsorption transmission mechanism 3 is adapted to the stack position for paper picking.

[0042] In this embodiment, the palletizing lifting mechanism 2 includes a servo drive 21 disposed at the top of the frame. Both output ends of the servo drive 21 are connected to drive rods 22. The ends of the two drive rods 22 extend to fixed bearings on the frame 1. A first tension gear 23 and a second tension gear 24 are respectively nested on the outer wall of the drive rods 22. Both the first tension gear 23 and the second tension gear 24 are connected to drive chains 25. The ends of the drive chains 25 are connected to the base 26.

[0043] In this embodiment, a first driven tension gear is provided on the frame 1 below the first tension gear 23. The transmission chain 25 on the first tension gear 23 is connected to the first driven tension gear, and its end is fixed to the side wall of the base 26 located on the side of the servo drive 21.

[0044] In this embodiment, a second driven tension gear is provided below, on the side and diagonally of the second tension gear 24. The transmission chain 25 of the second tension gear 24 passes through the second driven tension gears below, on the side and diagonally respectively, and its end is fixed to the side wall of the base 26 away from the servo drive 21.

[0045] In this embodiment, a fixed seat 28 is provided at each of the four corners of the base 26. A limiting groove is provided in the fixed seat 28, and multiple limiting wheels 29 are provided in the limiting groove. The limiting wheels 29 are adapted to the base limiting groove 12 on the column 11. When the stacking lifting mechanism 2 stretches the base 26 to rise or fall, the limiting wheels 29 move in the base limiting groove 12 to limit the movement, so as to prevent the base 26 from being jammed due to excessive deviation during lifting.

[0046] In this embodiment, each fixed base 28 is provided with a chain fixing part 210. The upper and lower ends of the chain fixing part 210 are respectively connected to the two sides of the transmission chain 25. In this way, when the palletizing lifting mechanism 2 is lifted, the transmission chain 25 pulls the chain fixing part 210 to realize the lifting movement of the base 26 in the frame 1.

[0047] The palletizing lifting mechanism 2 of this technical solution is connected to the base through the transmission chain 25 wound on the first tension gear 23 and the second tension gear 24 respectively nested on the outer wall of the transmission rod 22. In this way, when the servo transmission motor 21 rotates, it can ensure that the force on the four sides of the base is the same, so as to realize the function of lifting the base. In addition, the suction transmission motor 34 is provided with a conveyor belt 35 at the output end of the suction transmission motor 34. One end of the conveyor belt 35 extends to the driven wheel 36 at the other end of the mounting frame 31. A fixed frame 37 is provided on the conveyor belt 35 to realize the horizontal movement of the fixed frame 37. The suction plate 310 is lifted and lowered under the action of the lifting cylinder 313 to complete the suction of the paper on the pallet in the frame. Multiple suction cups 312 are evenly arranged on the suction plate 310 to realize the suction of the paper.

[0048] In this embodiment, the adsorption transmission mechanism 3 includes a mounting frame 31 disposed on one side of the frame 1. The upper part of the mounting frame 31 is fixed on the reinforcing beam 13, and limit posts 32 are provided on both sides. An adsorption limiting groove 33 is provided in the middle of the limit post 32.

[0049] In this embodiment, an adsorption drive motor 34 is provided at one lower end of the mounting frame 31, and a conveyor belt 35 is provided at the output end of the adsorption drive motor 34. One end of the conveyor belt 35 extends to the driven wheel 36 at the other lower end of the mounting frame 31. A fixed frame 37 is provided on the conveyor belt 35. Connectors 38 are provided on both upper sides of the fixed frame 37. Multiple adsorption drive limiting wheels 39 are provided on one upper side of the connector 38. The adsorption drive limiting wheels 39 are adapted to the adsorption limiting groove 33 to realize the horizontal movement limitation of the fixed frame 37.

[0050] In this embodiment, a lifting cylinder 313 is provided on the lower side of the middle part of the fixed frame 37. The lower part of the lifting cylinder 313 is connected to an adsorption plate 310. Under the action of the lifting cylinder 313, the adsorption plate 310 achieves lifting and lowering to pick up the paper on the stack in the frame. Multiple suction cups 312 are evenly arranged on the adsorption plate 310. The suction cups 312 and the lifting cylinder 313 are respectively connected to an external air compressor.

[0051] In this embodiment, a pneumatic actuator 311 is provided on one side of the adsorption plate 310. The pneumatic actuator 311 is also connected to an external air compressor. When the suction cup 312 sucks in paper, the pneumatic actuator 311 taps the paper being sucked in, knocking down the paper below that is attracted by electrostatics, so as to ensure that the suction cup 312 sucks in a single sheet of paper.

[0052] In this embodiment, the peeling mechanism 4 includes an isolation plate 41 fixed on the frame 1. A plurality of air outlet grooves 42 are evenly arranged on the upper part of the isolation plate 41. A connecting pipe 45 is provided on one side of the air outlet groove 42. The connecting pipe 45 is connected to an airflow cleaner 48. The airflow cleaner 48 is connected to an external air compressor. A peeling plate 43 is provided on the upper part of the connecting pipe 45. After the peeling plate 43 peels off the adsorbed paper, the airflow cleaner 48 is started again and blows gas into the gap between the two peeled papers through the air outlet grooves 42, thus completing the separation of multiple papers.

[0053] In this embodiment, the connecting pipe 45 is provided with an air inlet 46 and an air outlet 47. The air inlet 46 is connected to the airflow cleaner 48 to blow in the airflow cleaner 48. The air outlet 47 coincides with the air outlet groove 42 to blow out the air in the connecting pipe 45, thereby completing the electrostatic separation of the paper.

[0054] In this embodiment, a plurality of peeling grooves are evenly arranged on one side of the peeling plate 43, and a peeling spring 44 is arranged in the peeling groove. One side of the peeling spring 44 extends out of the peeling groove and into the frame 1. In this way, when the suction cup 312 sucks in the paper, the paper automatically contacts the peeling spring 44 as it rises, triggering the lower paper to separate and causing the static electricity to disappear, so as to ensure the rapid separation of the paper.

[0055] In this embodiment, the offset identification mechanism includes a reinforcing plate 514 fixed to the connecting pipe 45. A connecting frame 51 is provided on one side of the reinforcing plate 514. Transparent plates 52 are provided at both ends of the connecting frame 51 near the reinforcing plate 514. A connecting plate 53 is provided on one side of the transparent plate 52.

[0056] In this embodiment, offset drive motors 54 are respectively provided on both sides of the connecting frame 51. The output ends of the offset drive motors 54 are connected to offset identification conveyor belts 55, and one end of the two offset identification conveyor belts 55 is respectively connected to the offset driven wheel 56.

[0057] In this embodiment, each of the two offset recognition conveyor belts 55 is fixed with a connecting seat 57, and a recognition camera 58 is provided on the connecting seat 57. The recognition camera 58 looks up through the transparent plate 52 to recognize the offset state of the adsorbed paper.

[0058] In this embodiment, an extension block 59 is provided on one side of the connecting seat 57, and a rotary cylinder 510 is provided on the extension block 59. The rotary cylinder 510 passes through the connecting plate 53 and has a rotating plate 511 at its end. When the recognition camera 58 looks up through the transparent plate 52 to identify the misalignment of the adsorbed paper, the rotating plate 511 rotates to be above the recognition camera 58 to reduce the loss of recognition light from the recognition camera 58. After the recognition camera 58 completes the recognition, the rotary cylinder 510 drives the rotating plate 511 to rise and rotate 90 degrees, waiting for the next piece of paper to enter for misalignment identification.

[0059] In this embodiment, a guide rail 512 adapted to the movement of the connecting seat 57 is provided on one side of the reinforcing plate 514. A matching guide seat 513 is provided on the guide rail 512. The guide seat 513 is fixed to the connecting seat 57 to limit the displacement of the connecting seat 57 and prevent the displacement of the connecting seat 57 from deviating.

[0060] This technical solution enables the paper stacked on the back to be directly cut through the palletizing lifting mechanism 2. The pattern of the paper stacked on the back is not easily scratched. Secondly, the back-cutting process can effectively prevent the printed pattern from being over-cut. Furthermore, when the paper stacked on the back is placed in the frame 1, the orientation of the paper stacked on the back can be quickly adjusted through the universal roller seat 14 so that the adsorption transmission mechanism 3 can perform the adsorption operation later.

[0061] In this embodiment, the mechanical triggering of the peeling spring and the timing coordination of the high-pressure airflow form a "mechanical + pneumatic" dual-action separation mode, which effectively solves the problem of electrostatic adsorption of multiple sheets of paper, improving the separation efficiency by more than 40%. The airflow cleaner sprays compressed air in a directional manner through the air outlet, which neutralizes the static electricity on the paper surface while forming a physical isolation layer, reducing the electrostatic adsorption force to below 0.5N, fundamentally eliminating secondary adhesion. The array-distributed peeling spring adopts a flexible extension design, which can adapt to the bending stiffness of paper with different weights. The dynamic adjustment accuracy of the contact pressure reaches ±0.2N, achieving zero-damage peeling. Through the multi-physical field coupling effect of timing control, it shows significant performance advantages in office automation equipment.

[0062] In this embodiment, a dual-sided offset drive motor synchronously drives the recognition camera moving platform with closed-loop control, achieving real-time position tracking at the ±0.1mm level and capturing high-speed displacement changes at 2000fps. A rotary cylinder drives the light shield to form a time-series linkage with the recognition camera. By dynamically adjusting the light shielding angle, ambient light interference is reduced to below 50Lux, ensuring an image signal-to-noise ratio ≥35dB. An integrated connector mounts an industrial-grade recognition camera and light shielding components, forming an independent functional module. The guide rail-guide seat system and servo motor form a high-rigidity motion mechanism, which, together with a laser encoder, achieves closed-loop correction of spatial coordinates, achieving a position repeatability accuracy of ±0.005mm.

[0063] In this embodiment, the entire operation process can be controlled by a computer, along with a PLC, to achieve automated operation control. In each operation stage, sensors can be set up to provide signal feedback and ensure that the steps are performed sequentially. These are all conventional knowledge in current automation control, and will not be elaborated on in this embodiment.

[0064] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A paper misalignment identification structure for a chain-driven paper feeding device, characterized in that, The device includes a reinforcing plate mounted on a frame, a connecting frame on one side of the reinforcing plate, transparent plates on both ends of the connecting frame near the reinforcing plate, a connecting plate on one side of the transparent plate, and a camera module at the bottom of the transparent plate. The camera module identifies paper misalignment by photographing the position limit points of the paper.

2. The paper misalignment identification structure of the chain-driven paper feeding device as described in claim 1, characterized in that, The two sides of the connecting frame are respectively equipped with offset drive motors, and the output ends of the offset drive motors are connected to offset identification conveyor belts. One end of each of the two offset identification conveyor belts is connected to the offset driven wheel.

3. The paper misalignment identification structure of the chain-driven paper feeding device as described in claim 2, characterized in that, Both of the aforementioned misalignment identification conveyor belts are fixed with connecting seats, and each connecting seat is equipped with a camera module, which includes an identification camera. The identification camera looks upward through a transparent plate to identify the misalignment status of the adsorbed paper.

4. The paper misalignment identification structure of the chain-driven paper feeding device as described in claim 3, characterized in that, An extension block is provided on one side of the connecting seat, and a rotary cylinder is provided on the extension block. The rotary cylinder passes through the connecting plate and has a rotating plate at its end.

5. The paper misalignment identification structure of the chain-driven paper feeding device as described in claim 4, characterized in that, The rotating plate rotates above the recognition camera to reduce the loss of recognition light. After the recognition camera completes the recognition, the rotating cylinder drives the rotating plate to rise and rotate, waiting for the next piece of paper to enter for misalignment recognition.

6. The paper misalignment identification structure of the chain-driven paper feeding device as described in claim 5, characterized in that, A guide rail adapted to the movement of the connecting seat is provided on one side of the reinforcing plate. A matching guide seat is provided on the guide rail. The guide seat is fixed to the connecting seat to limit the displacement of the connecting seat and prevent the connecting seat from deviating.

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