A paper padding mechanism and paper padding process for a roll film coating equipment

Abstract

The application discloses a paper cushioning mechanism for a roll film paper covering device and a paper cushioning process thereof, and belongs to the field of industrial devices, which is used to solve the defect of inconvenient paper cushioning, and the technical scheme points are as follows: a paper cushioning mechanism for a roll film paper covering device, comprising a plurality of groups of paper cushioning machines, the plurality of groups of paper cushioning machines can be positioned to one side of a winding machine through light rails, the paper cushioning machine comprises a rack, a paper placing component, a vertical telescopic mechanism, a paper guiding structure and a paper cushioning arm, the vertical telescopic mechanism is located above the rack and can be vertically adjusted in height, the paper cushioning arm is installed at the end of the vertical telescopic mechanism and can be rotationally adjusted in angle, and the paper guiding mechanism comprises one or more than one flattening roller. The application can satisfy automatic paper cushioning in the whole roll diameter range, and is convenient to operate and use.

Description

Technical Field

[0001] This invention belongs to the field of industrial production technology, specifically relating to a paper padding mechanism and paper padding process for a roll film coating equipment. Background Technology

[0002] Stainless steel coil production lines require paper padding for protection during winding. A Chinese patent with publication number CN111674830A discloses a paper padding machine, relating to food processing equipment. The machine includes a body with a first conveyor belt fixedly mounted at its front end. A second conveyor belt is located at the output end of the first conveyor belt. The second conveyor belt includes a support body, specifically an integral structure composed of a horizontally arranged transverse portion and a downwardly inclined oblique portion. Negative pressure holes are evenly distributed at the top of both the transverse portion near the end of the oblique portion and at the top of the oblique portion. A housing is located below the negative pressure holes. The second conveyor belt is sleeved on the support body via two guide rollers. Adsorption holes are evenly distributed on the belt. A storage device mounted on the machine body is located below the second conveyor belt.

[0003] Currently, the following problems exist in the paper-laying process: 1. Manual paper-laying poses significant safety hazards and is very inconvenient to operate. 2. While using a winding aid can automatically lay paper at the start of winding, it cannot continue laying paper when there is a paper breakage or shortage, a problem that the aforementioned patent cannot solve. Summary of the Invention

[0004] The purpose of this invention is to provide a paper padding mechanism and paper padding process for a roll film coating equipment, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a paper padding mechanism for a roll film coating equipment, comprising several sets of paper padding machines, wherein the several sets of paper padding machines can be respectively positioned on one side of a winding machine via light rails. Each paper padding machine includes a frame, a paper feeding component, a vertical telescopic mechanism, a paper guiding structure, and a paper padding arm. The vertical telescopic mechanism is located above the frame and its height can be vertically adjusted. The paper padding arm is installed at the end of the vertical telescopic mechanism and its angle can be rotated and adjusted. The paper guiding structure includes one or more flattening rollers.

[0006] Preferably, the padding arm includes an arm, a first roller, a pressure roller, a negative pressure suction port, and a positive pressure blowing port. The arm rotates at the top of the vertical telescopic mechanism under motor control. The first roller and the pressure roller are rotatably connected to the arm. The negative pressure suction port and the positive pressure blowing port are respectively located at the other end of the arm away from the first roller. A positive pressure cavity communicating with the positive pressure blowing port is provided on the arm. A vacuum generator is embedded at the bottom of the positive pressure cavity. Compressed air is introduced into the positive pressure cavity, and the blowing action is achieved by controlling the opening and closing of a solenoid valve. Compressed air with a certain flow rate is introduced into the vacuum generator. The compressed air with a certain flow rate forms a certain negative pressure at the negative pressure suction port through the internal flow channel of the generator.

[0007] Preferably, the pad arm is equipped with a height sensor and a horizontal position sensor.

[0008] Preferably, the number of paper-pressing machines is not less than four.

[0009] This invention also discloses a padding paper process for a roll film coating equipment, comprising the following methods:

[0010] Step 1: Initial state control of the winding machine and the paper press machine;

[0011] Step 2: The paper padding machine enters the horizontal position, and the height and angle of the paper padding arm are automatically adjusted;

[0012] Step 3: Vertical insertion and paper placement of the paper-laying machine;

[0013] Step 4: The paper press machine returns to its longitudinal position.

[0014] Preferably, in step one, the original guide plate mechanism of the equipment is maintained, and the angle of the guide plate mechanism when it retracts needs to be modified to ensure the subsequent entry of the paper feeder; the height of the paper feeder is less than the height of the board at the exit of the guide roller, and the height and angle of the paper feeder arm 8 in the paper feeder are automatically adjusted according to the position of the paper feeder and the working steps; when the paper feeder is in the initial position, the paper feeder arm is in the downward state; the paper guide length on the paper feeder arm is greater than the length of the paper feeder arm.

[0015] Preferably, in step two, the paper padding machine automatically enters its position after the steel plate is guided; the automatic adjustment of the paper padding arm height is achieved by using a height-measuring laser displacement sensor installed in the paper padding machine to determine the height of the paper padding arm through real-time measurement data, controlling the height value to be less than the height of the plate, ensuring that the guide wheel of the paper padding arm does not temporarily contact the steel plate; when automatically adjusting the angle of the paper padding arm, it is determined according to the diameter of the winding machine, and the winding diameter data can be provided in real time during the overall machine control.

[0016] Preferably, in step three, when the paper padding machine is longitudinally positioned, the paper padding machine is controlled to move from the steel plate guide wheel section towards the winding machine side. During the movement, the height position of the paper padding arm is adjusted in real time according to the height sensor of the paper padding machine to control and maintain the height position value of the pressure roller and the high plate of the paper padding machine, and to prevent them from contacting the steel plate. When determining the longitudinal distance of the paper padding machine: the tilt angle of the steel plate, the winding cutting point of the steel plate, and the length of the paper padding arm are determined according to the diameter of the steel coil. After the paper padding machine is longitudinally positioned, the air valve is opened to blow air and unfold the paper. After the paper is unfolded, it has not yet entered the winding clamping point of the steel coil. Then, the paper is fed upward by the contact pressure roller: the paper padding arm rises for the last distance, and the contact pressure roller carries the paper and the moving steel plate to complete the short-distance paper feeding, completing the key step of paper padding.

[0017] Preferably, in step four, the following steps are performed: First, close the air valve: after paper feeding is completed, there is no need for airflow to support the paper; then lower the pressure roller: after paper feeding is completed, the paper has traction force, the pressure roller loses its effectiveness, and can retract to the height at the beginning of paper feeding; then the paper feeder retracts longitudinally, and the paper feeder arm slowly descends accordingly, returning to the initial longitudinal position, and the height of the paper feeder arm slowly decreases during the retraction process; then slowly lower the paper feeder arm: return the paper feeder to the initial longitudinal position, and the paper feeder arm rotates to the initial position; if the paper breaks or needs to be changed, the standby paper feeder takes over the work, and steps one to four are repeated.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] This invention can automatically feed paper across the entire roll diameter range. The installation of the paper feeder does not affect the operation of the main unit, minimizing modifications to the main unit during project implementation. The height and angle of the paper feeder arm automatically adjust according to the position and working steps of the paper feeder. Based on the diameter of the steel roll, this invention determines three key distances the paper feeder needs to be away from the steel roll: the tilt angle of the steel plate, the steel plate winding cut point, and the length of the paper feeder arm. This distance measurement is accomplished by the horizontal position sensor of the paper feeder. Furthermore, after the paper feeder completes longitudinal positioning, the paper can be unfolded using negative pressure suction and positive pressure blowing ports. Before the unfolded paper enters the winding clamping point of the steel roll, the paper feeder arm rises a final distance, contacting the pressure roller carrying the paper and the moving steel plate, completing the short-distance paper feeding and fulfilling the crucial paper feeder step, making paper feeder more efficient. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the layout of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of the paper pad arm of the present invention.

[0023] The components include: 1. Paper feeder; 2. Light rail; 3. Winder; 4. Frame; 5. Paper feeding component; 6. Vertical telescopic mechanism; 7. Paper guide structure; 8. Paper feeder arm; 9. Arm; 10. First roller; 11. Press roller; 12. Negative pressure air intake; 13. Positive pressure air blowing port. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Please see Figures 1-2 This embodiment provides a technical solution: a paper padding mechanism for a roll film coating equipment, including several sets of paper padding machines 1. The several sets of paper padding machines 1 can be respectively positioned on one side of a winding machine 3 via a light rail 2. The paper padding machine 1 includes a frame 4, a paper feeding component 5, a vertical telescopic mechanism 6, a paper guiding structure 7, and a paper padding arm 8. The vertical telescopic mechanism 6 is located above the frame 4 and can be vertically adjusted in height. The paper padding arm 8 is installed at the end of the vertical telescopic mechanism 6 and can be rotated to adjust the angle. The paper guiding structure 7 includes one or more flattening rollers.

[0026] The paper-pad arm 8 includes an arm 9, a first roller 10, a pressure roller 11, a negative pressure suction port 12, and a positive pressure blowing port 13. The arm 9 is rotated at the top of the vertical telescopic mechanism 6 by a motor. The first roller 10 and the pressure roller 11 are rotatably connected to the arm 9. The negative pressure suction port 12 and the positive pressure blowing port 13 are respectively located at the other end of the arm 9 away from the first roller 10. The arm 9 is provided with a positive pressure cavity communicating with the positive pressure blowing port 13. A vacuum generator is embedded at the bottom of the positive pressure cavity. Compressed air is introduced into the positive pressure cavity, and the blowing action is achieved by controlling the opening and closing of a solenoid valve. Compressed air with a certain flow rate is introduced into the vacuum generator. The compressed air with a certain flow rate forms a certain negative pressure at the negative pressure suction port 12 through the internal flow channel of the generator. The paper-pad arm 8 is equipped with a height sensor and a horizontal position sensor. The paper-pad machine 1 has no less than four sets of sensors.

[0027] Please see Figures 1-2 This embodiment also discloses a padding paper process for a roll film coating equipment, including the following method:

[0028] Step 1: Initial state control of winding machine 3 and paper press machine 1;

[0029] Step 2: The paper padding machine 1 enters the horizontal position, and the height and angle of the paper padding arm 8 are automatically adjusted;

[0030] Step 3: Vertical insertion and paper placement of the paper-laying machine 1;

[0031] Step 4: Paper feeder 1 returns to longitudinal position.

[0032] In step one, the original guide plate mechanism of the equipment is maintained. The angle of the guide plate mechanism when it is retracted needs to be modified to ensure the subsequent entry of the paper feeder 1. The height of the paper feeder 1 is less than the height of the board at the exit of the guide roller. The height and angle of the paper feeder arm 8 in the paper feeder 1 are automatically adjusted according to the position and working steps of the paper feeder 1. When the paper feeder 1 is in the initial position, the paper feeder arm 8 is in the downward state. The paper guide length on the paper feeder arm 8 is greater than the length of the paper feeder arm 8.

[0033] In step two, the paper padding machine 1 automatically enters its position after the steel plate is guided; the height of the paper padding arm 8 is automatically adjusted: the height measurement laser displacement sensor set in the paper padding machine 1 is used to determine the height of the paper padding arm 8 through real-time measurement data, and the height value is controlled to be less than the height of the plate to ensure that the guide wheel of the paper padding arm 8 does not contact the steel plate temporarily; when the angle of the paper padding arm 8 is automatically adjusted, it is determined according to the diameter of the winding machine 3, and the winding diameter data can be provided in real time in the whole machine control.

[0034] In step three, when the paper feeder 1 is longitudinally positioned, it is controlled to move from the steel plate guide wheel section to the winding machine 3. During the movement, the height position of the paper feeder arm 8 is adjusted in real time according to the height sensor of the paper feeder 1 to maintain the height position value of the pressure roller and the high plate of the paper feeder 1, and to prevent them from contacting the steel plate. When determining the longitudinal distance of the paper feeder 1, the tilt angle of the steel plate, the winding cutting point of the steel plate, and the length of the paper feeder arm 8 are determined according to the diameter of the steel coil. After the paper feeder 1 is longitudinally positioned, the air valve is opened to blow air and unfold the paper. After the paper is unfolded, it has not yet entered the winding clamping point of the steel coil. Then, the paper is fed upward by the contact pressure roller: the paper feeder arm 8 rises for the last distance, and the contact pressure roller carries the paper and the moving steel plate to complete the short-distance paper feeding, completing the key step of paper feeding.

[0035] In step four, the following steps are performed: First, close the air valve: after paper feeding is completed, there is no need for airflow to support the paper; then lower the pressure roller 11: after paper feeding is completed, the paper has traction force, the pressure roller loses its effectiveness, and can retract to the height at the beginning of paper feeding; then the paper feeder 1 retracts longitudinally, and the paper feeder arm 8 slowly descends accordingly, returning to the initial longitudinal position, and the height of the paper feeder arm 8 slowly decreases during the retraction process; then slowly lower the paper feeder arm 8: return the paper feeder 1 to the initial longitudinal position, and the paper feeder arm 8 rotates to the initial position; if the paper breaks or needs to be changed, the standby paper feeder 1 takes over the work, and steps one to four are repeated.

[0036] The implementation of this invention mainly consists of three parts: 1) Basic modification: Considering operational safety, the paper-laying mechanism needs to be moved out of its working position for operation. Light rails 2 need to be installed in the north-south and east-west directions to facilitate the horizontal and vertical movement of the paper-laying machine 1; 2) The steel plate guide bridge needs to be redesigned to ensure the subsequent entry of the paper-laying machine 1 (due to the laying of tracks on the ground, the ground is raised as a whole); 3) Paper-laying machine 1: ① The paper-laying machine 1 consists of a paper-feeding component 5, a vertical telescopic mechanism 6, a paper-laying arm 8, a flattening roller, and a frame 4. It can realize horizontal and vertical movement, and the telescopic arm can be freely extended and retracted. The paper arm 8 can rotate at a certain angle; ② The left end of the paper arm 8 has rollers of different sizes (roller one and pressure roller 11), and the right end has a positive pressure cavity, with a vacuum generator embedded at the bottom of the positive pressure cavity; the positive pressure cavity is supplied with compressed air, and the blowing action can be achieved by controlling the opening and closing of the solenoid valve; the vacuum generator supplies compressed air at a certain flow rate, and the compressed air at a certain flow rate will form a certain negative pressure in the bypass through the internal flow channel of the generator, forming a negative pressure suction port 12. Due to the negative pressure, the paper will be adsorbed at the bottom of the cavity, ensuring that the paper does not fall off during the rotation of the paper arm 8.

[0037] This embodiment can automatically feed paper across the entire roll diameter range. The installation of the paper feeder 1 in this embodiment does not affect the operation of the main unit, minimizing modifications to the main unit during project implementation. The height and angle of the paper feeder arm 8 of the paper feeder 1 in this embodiment automatically adjust according to the position and working steps of the paper feeder 1. Based on the diameter of the steel roll, this embodiment determines the distance the paper feeder 1 needs to be away from the steel roll by three factors: the tilt angle of the steel plate, the steel plate winding cut point, and the length of the paper feeder arm 8. This distance measurement is completed by the horizontal position sensor of the paper feeder 1. Furthermore, after the paper feeder 1 completes its longitudinal positioning, the paper can be unfolded using the negative pressure suction port 12 and the positive pressure blowing port 13. After unfolding, the paper has not yet entered the winding clamping point of the steel roll. The paper feeder arm 8 rises a final distance, contacting the pressure roller carrying the paper and the moving steel plate, completing the short-distance paper feeding and fulfilling the key step of paper feeding, making paper feeding more efficient.

[0038] Although embodiments of this embodiment have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this embodiment, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sheeting mechanism for a roll sheeting apparatus, characterized by: The application relates to a paper padding machine, which comprises a plurality of groups of paper padding machines (1), the plurality of groups of paper padding machines (1) can be respectively positioned to one side of a winding machine (3) through light rails (2), the paper padding machine (1) comprises a rack (4), a paper feeding component (5), a vertical telescopic mechanism (6), a paper guiding structure (7) and a paper padding arm (8), the vertical telescopic mechanism (6) is located above the rack (4) and can be vertically adjusted in height, the paper padding arm (8) is installed at the end of the vertical telescopic mechanism (6) and can be rotationally adjusted in angle, and the paper guiding structure (7) comprises one or more than one flattening roller.

2. The backing paper mechanism for a roll film papering apparatus according to claim 1, wherein: The paper padding arm (8) is provided with a height sensor and a horizontal position sensor.

3. The backing paper mechanism for a roll film papering apparatus according to claim 1, wherein: The paper padding machine (1) is not less than four groups.

4. A paper interleaving process using the paper interleaving mechanism of any one of claims 1 to 3, characterized in that: The application further discloses a paper padding method. Step one: initial state control of the winding machine (3) and the paper padding machine (1); Step two: transverse positioning of the paper padding machine (1), automatic adjustment of the height and angle of the paper padding arm (8); Step three: longitudinal positioning and paper padding of the paper padding machine (1); Step four: longitudinal return of the paper padding machine (1). In the step one, the original leading plate mechanism of the equipment is continuously kept, the angle of the leading plate mechanism when being retracted is modified to ensure the subsequent positioning of the paper padding machine (1); the height of the paper padding machine (1) is less than the height of the plate at the outlet of the guiding roller, the height and angle of the paper padding arm (8) in the paper padding machine (1) are automatically adjusted according to the position and working step of the paper padding machine (1); the paper padding arm (8) is in a downward state when the paper padding machine (1) is in the initial position; the paper leading length on the paper padding arm (8) is greater than the length of the paper padding arm (8).

5. The process of claim 4, wherein: In the step two, the paper padding machine (1) is automatically positioned after the steel plate guiding is completed; the automatic adjustment of the height of the paper padding arm (8) is realized by using the height measuring laser displacement sensor arranged in the paper padding machine (1) to determine the height of the paper padding arm (8) through real-time measurement data, the height value is controlled to be less than the height of the plate, and it is ensured that the guide wheel of the paper padding arm (8) is temporarily not in contact with the steel plate; when the automatic adjustment control of the angle of the paper padding arm (8) is realized, the diameter of the winding machine (3) is determined, and the data of the winding diameter can be provided in real time in the whole machine control.

6. The process of claim 5, wherein: The third step, when the paper pad machine (1) is longitudinally positioned, the paper pad machine (1) is controlled to move from the steel plate guide wheel section to the winding machine (3) side, and the height position of the paper pad arm (8) is adjusted in real time according to the height sensor of the paper pad machine (1) during the movement, the height position value of the pressure roller of the paper pad machine (1) is controlled to keep the height position value of the paper pad machine (1) not in contact with the steel plate; when the longitudinal distance of the paper pad machine (1) is determined: according to the diameter of the steel roll, the inclination angle of the steel plate, the winding cut point of the steel plate, and the length of the paper pad arm (8) are determined; after the longitudinal positioning of the paper pad machine (1) is completed, the air valve is opened to blow and unfold the paper, and the paper is unfolded and has not entered the winding clamping point of the steel roll; then the contact pressure roller is lifted to feed the paper: the paper pad arm (8) rises by a last distance, the contact pressure roller carries the paper and the moving steel plate, completes the small-distance paper feeding, and completes the key step of paper padding.

7. The process of claim 6, wherein: The fourth step, the following steps are carried out: first, close the air valve: after the paper feeding is completed, the airflow is no longer needed to support the paper; then, lower the touch pressure roller (11): after the paper feeding is completed, the paper exists a traction force, the touch pressure roller loses the function and can be retracted to the height at the beginning of the paper feeding; then, the paper pad machine (1) is longitudinally retreated, the paper pad arm (8) follows and slowly descends, and is retreated to the initial longitudinal position, and the height of the paper pad arm (8) slowly descends during the retreat process; Then, slowly lower the paper pad arm (8): the paper pad machine (1) is returned to the initial longitudinal position, and the paper pad arm (8) is rotated to the initial position; when the paper is broken or replaced, the standby paper pad machine (1) participates in the work, and the steps one to four are repeated.

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