Roll changing device for winding release paper

Abstract

The utility model relates to the field of release paper production, and particularly discloses a roll changing device for winding release paper. The roll changing device for winding the release paper comprises a machine body, a driving cabinet installed on one side of the machine body, a transmission shaft rotationally connected to the upper end of the driving cabinet and the upper end of the machine body and positioning plates fixedly connected to the two ends of the transmission shaft, and two air expansion rolls are connected between the two positioning plates. The two ends of one positioning plate are each provided with a locking piece used for locking an air expansion roller, the two ends of the other positioning plate are each provided with a driving piece used for driving the air expansion roller to rotate, and the two ends of each positioning plate are each fixedly connected with a limiting piece used for supporting the air expansion roller. And each limiting piece is provided with a limiting groove which is communicated with the inner wall of the positioning plate and is used for placing the end part of the air expansion roller. The air expansion roller can be rapidly replaced, the replacement time is shortened, meanwhile, it can be guaranteed that the air expansion roller is kept stable in the running process through the locking piece and the limiting piece, displacement is avoided, and therefore the quality of rolled release paper is guaranteed.

Description

Technical Field

[0001] This application relates to the field of release paper production, and in particular to a roll changing device for release paper winding. Background Technology

[0002] Release paper is a release agent-coated non-stick paper used in tapes, labels, food packaging, and other fields. After production, it needs to be wound up using a winding device to ensure it is flat and neat, remove waste edges, prevent static electricity and contamination, and guarantee quality.

[0003] Rewinding devices are generally divided into single-station rewinding and dual-station rewinding. Single-station rewinding requires stopping the machine to replace the rewinding roller; dual-station rewinding automatically switches the rewinding shaft through the controller and rotary table, the cutter cuts the roll material, and the auxiliary roller clamps the conveyor end, realizing rewinding without stopping the machine and improving efficiency.

[0004] In the prior art, when changing the take-up roll in a release paper take-up device, it is usually necessary to first unlock the locking structure that fixes the take-up roll, then remove the take-up roll with the release paper roll, place the new take-up roll between the locking structures, and lock both ends of the take-up roll at the same time. This increases the number of steps in the roll changing operation, resulting in a longer replacement time, which in turn affects the roll changing efficiency of the take-up device. Utility Model Content

[0005] In order to reduce the operation steps and time of changing rolls and improve the roll changing efficiency of the device, this application provides a roll changing device for release paper winding.

[0006] The release paper winding roller changing device provided in this application adopts the following technical solution:

[0007] A release paper rewinding roller changing device includes a machine body, a drive cabinet installed on one side of the machine body, a drive shaft rotatably connected to the upper end of the drive cabinet and the upper end of the machine body, and positioning plates fixedly connected to both ends of the drive shaft. Two air-expanding rollers are connected between the two positioning plates. Locking components for locking the air-expanding rollers are installed at both ends of one positioning plate, and driving components for driving the air-expanding rollers to rotate are installed at both ends of the other positioning plate. Limiting components for supporting the air-expanding rollers are fixedly connected to both ends of each positioning plate. Each limiting component has a limiting groove that communicates with the inner wall of the positioning plate and is used for the end of the air-expanding roller to be inserted.

[0008] By adopting the above technical solution, firstly, when replacing the take-up roll, the old air roll can be quickly removed and the new air roll can be installed, which can shorten the replacement time and improve the replacement efficiency of the air roll; secondly, it can ensure that the air roll remains stable during operation and avoid displacement of the air roll due to vibration or external force, thereby ensuring the quality of the release paper being wound; thirdly, by installing the locking parts and driving parts on different positioning plates, the functional division of the device is more clearly defined, making it easier to operate and maintain.

[0009] Optionally, the locking component includes an air pump, an air cylinder, and a locking block. The air pump and the air cylinder are both fixedly connected to one side of the positioning plate, and the air outlet of the air pump is fixedly connected to the air inlet of the air cylinder. The locking block is slidably connected to the inner wall of the limiting groove, and one end of the locking block is rotatably connected to one end of the piston rod of the air cylinder.

[0010] By adopting the above technical solution, the air roller can be locked onto the positioning plate quickly and reliably, realizing the automation of the locking process, ensuring that the air roller will not loosen during the winding process, while reducing the tediousness of manual operation and improving the reliability of the device.

[0011] Optionally, one end of the locking block is fixedly connected to an insert block, and both ends of the air expansion roller are provided with positioning grooves for the insert block to be inserted.

[0012] By adopting the above technical solution, the air expansion roller can be accurately positioned, ensuring that the air expansion roller is in the correct position during installation. After the insert block is inserted into the positioning groove, it can enhance the fixing effect of the locking part on the air expansion roller, ensuring the stability of the air expansion roller during rotation, thereby ensuring the flatness and consistency when winding and rewinding the release paper.

[0013] Optionally, the middle part of the insert block is provided with an air hole communicating with the air inlet of the air expansion roller, which is used to provide an air inflation channel for the air expansion roller.

[0014] By adopting the above technical solution, the air hole is connected to the air inlet of the air expansion roller, which can provide an air inflation channel for the air expansion roller, making the air inflation operation of the air expansion roller more convenient, without the need for additional connecting parts, thus improving the efficiency of operation.

[0015] Optionally, a roll for winding release paper is installed on the outer side of the air expansion roller, and a plurality of key bars for fixing the roll are provided on the inner side of the air expansion roller.

[0016] By adopting the above technical solution, rolls of different diameters can be effectively fixed, preventing the rolls from loosening or slipping during the winding process, ensuring winding stability, and improving the quality of release paper rolls.

[0017] Optionally, the driving component includes a drive motor and a transmission rod. One side of the drive motor is fixedly connected to one side of the positioning plate. The transmission rod is rotatably connected to the inner wall of the limiting groove and one end is fixedly connected to the output shaft of the drive motor. A positioning block that mates with the inner wall of the positioning groove is fixedly connected to one side of the transmission rod.

[0018] By adopting the above technical solution, the air roller can be driven to rotate precisely, ensuring the stability and consistency of the winding speed, thereby guaranteeing the flatness and quality of the release paper winding, while avoiding slippage or transmission failure, and improving the reliability and service life of the device.

[0019] Optionally, limit rollers are rotatably connected between both ends of the two positioning plates.

[0020] By adopting the above technical solution, the release paper can be prevented from loosening during the roll changing process, thereby ensuring the stability of the release paper during roll changing and improving the winding quality of the release paper.

[0021] Optionally, a controller for controlling the operation of the device is fixedly connected to one side of the drive cabinet.

[0022] By adopting the above technical solution, the entire device can be operated through a centralized control unit, which facilitates unified control and adjustment of various functions of the device by the operator, and improves the convenience and accuracy of operation.

[0023] In summary, this application has the following beneficial effects:

[0024] 1. This application enables quick replacement of the air expansion roller, shortening the replacement time. At the same time, the locking and limiting components ensure that the air expansion roller remains stable during operation and avoids displacement, thereby ensuring the quality of the release paper.

[0025] 2. This application can reduce the tediousness of manual operation through automated locking and inflation functions, while facilitating unified control and adjustment of the device by operators, thereby improving the convenience and accuracy of operation. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the take-up roller changing device according to an embodiment of this application;

[0027] Figure 2 This is a schematic diagram of the drive cabinet and transmission shaft according to an embodiment of this application;

[0028] Figure 3 This is a schematic diagram of the positioning plate and locking component according to an embodiment of this application;

[0029] Figure 4 This is a schematic diagram of the positioning plate and driving component according to an embodiment of this application;

[0030] Figure 5 This is a schematic diagram of the structure of the air roller and the drum according to an embodiment of this application.

[0031] Explanation of reference numerals in the attached drawings: 1. Machine body; 2. Drive cabinet; 21. Controller; 3. Drive shaft; 4. Positioning plate; 5. Locking component; 51. Air pump; 52. Cylinder; 53. Locking block; 531. Insert block; 5311. Air hole; 6. Drive component; 61. Drive motor; 62. Transmission rod; 631. Positioning block; 7. Limiting component; 71. Limiting groove; 8. Air expansion roller; 81. Positioning groove; 82. Key bar; 9. Limiting roller; 10. Drum. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0033] This application discloses a roll changing device for release paper winding.

[0034] Reference Figure 1 , Figure 2 The release paper rewinding roller changing device includes a machine body 1 and a drive cabinet 2 fixedly installed on one side of the machine body 1. A controller 21 for controlling the operation of the equipment is fixedly connected to one side of the drive cabinet 2. A drive shaft 3 is rotatably connected between the upper end of the drive cabinet 2 and the machine body 1. A motor for driving the drive shaft 3 is installed on the inner wall of the drive cabinet 2. Two positioning plates 4 are fixedly connected to both ends of the drive shaft 3. The two positioning plates 4 rotate on the upper side of the machine body 1 via the drive shaft 3. Each positioning plate 4 is rhomboid in shape and has arc-shaped edges. Locking parts 5 are fixedly connected to both ends of one positioning plate 4, and driving parts 6 are fixedly connected to both ends of the other positioning plate 4. Limiting parts 7 are fixedly connected to both ends of adjacent sides of the two positioning plates 4, and an air expansion roller 8 is connected between the two limiting parts 7 at each end. A roll 10 is connected to the outside of the air expansion roller 8, and adhesive tape for bonding the release paper is pasted on the outside of the roll. The locking component 5 is used to lock and fix the air expansion roller 8, and can control the expansion of the air expansion roller 8 to fix the roll 10. The driving component 6 is used to drive the air expansion roller 8 to rotate, so that the release paper is wound on the roll 10 to complete the winding. The other two ends of the two positioning plates 4 are rotatably connected to the limit rollers 9, which are used to prevent the release paper from loosening when replacing the air expansion roller 8.

[0035] When the release paper is wound and a roller change is needed, firstly, the drive shaft 3 inside the drive cabinet 2 is rotated by the motor, causing the two positioning plates 4 to rotate 180°, adjusting the position between the two air rollers 8 until the release paper adheres to the tape on the outside of the new roll 10, at which point the release paper is cut. At this time, the first drive unit 6 stops operating, and the second drive unit 6 is started to drive the new air roller 8 to rotate, continuing the winding of the release paper. Then, one of the locking parts 5 is controlled to unlock the air roller 8 containing the release paper and remove it. Finally, the air roller 8 with the roll 10 is placed between the two limiting parts 7 and connected to the drive unit 6. The locking part 5 is used to fix the air roller 8, and the air roller 8 is driven to expand to fix the roll 10, completing the replacement of the air roller.

[0036] refer to Figure 2 , Figure 3 and Figure 5 Two locking components 5 are provided. Each locking component 5 includes an air pump 51 and an air cylinder 52 fixedly connected to one side of one of the positioning plates 4, and a locking block 53 rotatably connected to one end of the piston rod of the air cylinder 52. An air pipe is fixedly connected between the air outlet of the air pump 51 and the air inlet of the air cylinder 52. Each limiting component 7 has a limiting groove 71 communicating with the positioning plate 4. The locking block 53 slides through the piston rod of the air cylinder 52 and the inner wall of the limiting groove 71, and the limiting groove 71 is used for inserting one end of the air expansion roller 8. The piston rod of the air cylinder 52 is hollow inside. An insert block 531 is fixedly connected to one side of the locking block 53. An air hole 5311 is opened in the middle of the insert block 531, which communicates with the locking block 53 and the inner wall of the piston rod. Both ends of the air expansion roller 8 have positioning grooves 81 for inserting the insert block 531 to ensure the stability of the air expansion roller 8. The inner wall of the air expansion roller 8 is provided with an air inlet aligned with the air hole 5311. An air bladder is connected to the inner wall of the air expansion roller 8 and fixedly connected to the air inlet. Multiple key bars 82 that slide with the inner wall of the air expansion roller 8 are fixedly connected to the outer side of the air bladder. The key bars 82 are used to fix the drum 10 by sliding with the inner wall of the air expansion roller 8.

[0037] In use, firstly, the air roller 8 is placed in the limiting grooves 71 of the two limiting members 7; at this time, the air pump 51 is controlled by the controller 21 to operate, so that compressed air is conducted into the cylinder 52, causing its piston rod to extend and push the locking block 53 to slide on the inner wall of the limiting groove 71 until the insert block 531 is fully inserted into the positioning groove 81, thus locking the air roller 8; then, the air pump 51 supplies air to the cylinder 52 through the air pipe, and after the piston rod extends, the compressed air enters the air inlet of the air roller 8 through the air hole 5311, causing the air bag to inflate and push the multiple key bars 82 to slide on the inner wall of the air roller 8, thus fixing the drum 10.

[0038] refer to Figure 2 , Figure 4 and Figure 5 The drive unit 6 has two components. The drive unit 6 includes a drive motor 61 fixedly connected to another positioning plate 4. One end of the output shaft of the drive motor 61 is fixedly connected to a transmission rod 62, which is rotatably connected to the inner wall of the limiting groove 71. A positioning block 631 is fixedly connected to one side of the transmission rod 62. When one end of the air roller 8 is in contact with the inner wall of the limiting groove 71, the air roller 8 is pushed so that the positioning groove 81 at one end of it is inserted into the outer side of the positioning block 631 until the positioning block 631 is completely in contact with the inner wall of the positioning groove 81. This not only ensures the stability of the rotation of the air roller 8, but also prevents air leakage from the air inlet at one end of the air roller 8.

[0039] The implementation principle of the release paper winding roll changing device in this embodiment is as follows: When it is necessary to change the air expansion roll 8, firstly, the roll 10 with adhesive tape is placed on the outside of the air expansion roll 8, and then the air expansion roll 8 is placed between the two limiting members 7, and the positioning groove 81 at one end is inserted into the positioning block 631 of the transmission rod 62. At this time, the air pump 51 is started to drive the cylinder 52 to operate, and the piston rod of the cylinder 52 pushes the locking block 53 to slide on the inner wall of the limiting groove 71 until the insertion block 531 is fully inserted into the positioning groove 81, thus completing the locking of the air expansion roll 8. Next, the compressed airflow generated by the air pump 51 passes through the piston rod of the cylinder 52 and the air hole 5311 to inflate the air bladder inside the air expansion roll 8, pushing the key bar 82 to fix the roll 10. Then, the motor in the drive cabinet 2 is started, driving the transmission shaft 3 to rotate 180°. During this process, the limiting roller 9 will contact the release paper to prevent the release paper from loosening due to the switching of the air expansion roller 8. This continues until the tape on the outer roll 10 of the new air expansion roller 8 contacts the release paper, at which point the release paper is cut. At the same time, the drive motor 61 corresponding to the new air expansion roller is started, driving the new air expansion roller 8 to rotate and continue winding the release paper. Simultaneously, the drive component 6 corresponding to the original air expansion roller is stopped, and the corresponding locking component 5 is controlled to unlock the original air expansion roller 8, removing the roll 10 with the release paper wound on the outer side of the original air expansion roller 8. Finally, the unwound air expansion roller 8 is placed back between the two limiting components 7, and the above operation process is repeated to achieve continuous roll changing during the release paper winding process.

[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A roll changing device for release paper winding, comprising a machine body (1), a drive cabinet (2) installed on one side of the machine body (1), a drive shaft (3) rotatably connected to the upper end of the drive cabinet (2) and the upper end of the machine body (1), and positioning plates (4) fixedly connected to both ends of the drive shaft (3), characterized in that: Two air expansion rollers (8) are connected between the two positioning plates (4), one end of the positioning plate (4) is provided with a locking piece (5) for locking the air expansion roller (8), the other end of the positioning plate (4) is provided with a driving piece (6) for driving the air expansion roller (8) to rotate, and the two ends of each positioning plate (4) are fixedly connected with a limiting piece (7) for supporting the air expansion roller (8), and each limiting piece (7) is provided with a limiting groove (71) communicated with the inner wall of the positioning plate (4) and used for placing the end of the air expansion roller (8).

2. The roll changing device for release paper winding according to claim 1, characterized in that: The locking piece (5) comprises an air pump (51), an air cylinder (52) and a locking block (53), the air pump (51) and the air cylinder (52) are fixedly connected with one side of the positioning plate (4), and the air outlet of the air pump (51) is fixedly connected with the air inlet of the air cylinder (52), and one end of the locking block (53) is rotatably connected with one end of the piston rod of the air cylinder (52).

3. The roll changing device for release paper winding according to claim 2, characterized in that: One end of the locking block (53) is fixedly connected with an insertion block (531), and the two ends of the air expansion roller (8) are provided with positioning grooves (81) for inserting the insertion block (531).

4. The roll changing device for release paper winding according to claim 3, characterized in that: The middle part of the insertion block (531) is provided with an air hole (5311) communicated with the air inlet of the air expansion roller (8), so as to provide an inflation channel for the air expansion roller (8).

5. The roll changing device for release paper winding according to claim 1, characterized in that: The outer side of the air expansion roller (8) is provided with a winding drum (10) for winding the release paper, and the inner side of the air expansion roller (8) is provided with a plurality of key bars (82) for fixing the winding drum (10).

6. The roll changing device for release paper winding according to claim 1, characterized in that: The driving piece (6) comprises a driving motor (61) and a transmission rod (62), one side of the driving motor (61) is fixedly connected with one side of the positioning plate (4), the transmission rod (62) is rotatably connected with the inner wall of the limiting groove (71) and one end of the transmission rod (62) is fixedly connected with the output shaft of the driving motor (61), and one side of the transmission rod (62) is fixedly connected with a positioning block (631) matched with the inner wall of the limiting groove (81).

7. The roll changing device for release paper winding according to claim 1, characterized in that: The limiting roller (9) is rotatably connected between the two ends of the two positioning plates (4).

8. The roll changing device for release paper winding according to claim 1, characterized in that: One side of the driving cabinet (2) is fixedly connected with a controller (21) for controlling the operation of the device.

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