PET (Polyethylene Terephthalate) pull tab winding device
By designing a PET film pulling and winding device, and utilizing the cooperation of a pneumatic mounting base and a translation module, the problem of low efficiency in disassembling and winding rollers in existing film winding machines was solved, achieving precise installation and positioning of the roller core shaft and improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG DANQI PACKAGING TECH CO LTD
- Filing Date
- 2025-05-20
- Publication Date
- 2026-04-17
AI Technical Summary
The existing film winding machine has a cumbersome operation when the winding roller needs to be disassembled after winding, which requires multiple people to work together, resulting in low disassembly efficiency and reducing the working efficiency of the winding machine.
A PET film pulling and winding device was designed, including a base, a drive mechanism, a limiting mechanism, and a roller core shaft. Through the cooperation of a pneumatic mounting base and a translation module, the roller core shaft is accurately installed and limited. The support module provides fixation and support to ensure the stability of the winding process. When changing rolls, all components work together to quickly release the fixation.
It enables convenient installation and positioning of the roller core, reduces downtime, improves production efficiency, and simplifies the roll changing process.
Smart Images

Figure CN224132340U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of film winding technology, and specifically to a PET sheet winding device. Background Technology
[0002] As an important component of the film production system, the winding mechanism is used to wind up the film for easy storage and transportation.
[0003] Patent publication number CN218753913U discloses a film winding machine. This winding machine eliminates static electricity generated in the film by setting an electrostatic elimination mechanism between the winding roller and the pressure roller before winding, reducing static electricity by more than 90% and preventing electrostatic damage to operators. The film is fixed by clamping plates and pressure rollers before cutting, reducing the impact on the upstream film during cutting.
[0004] The above-mentioned film winding machine has the following problems: after the winding machine finishes winding, the winding roller needs to be disassembled and replaced. The replacement process is very cumbersome and requires multiple people to complete, which makes the disassembly of the winding roller difficult, reduces the efficiency of the winding roller disassembly, and consequently reduces the working efficiency of the winding machine. Therefore, we need a film winding machine. Utility Model Content
[0005] This invention provides a PET sheet winding device to address the problems of existing technologies.
[0006] The objective of this utility model can be achieved through the following technical solution: A PET sheet winding device includes: a base, a driving mechanism, a limiting mechanism, and a roller core shaft. The driving mechanism includes a driving column mounted on the base, a driving module rotatably mounted on the driving column, and a driving motor mounted on the side of the driving column. The driving module includes a rotating shaft, a pneumatic mounting seat mounted on the left end of the rotating shaft, and a driving disk mounted on the right end of the rotating shaft. The driving disk is connected to the driving motor. A movable column mechanism is provided on the side of the base away from the driving column. The limiting mechanism includes a translation module and a support module mounted on the side of the translation module. The translation module is movably mounted on the base and has a top head at its upper end. The support module includes a mounting plate fixedly mounted on the side of the translation module, a support member mounted on the mounting plate, and a support column mounted on the lower end of the mounting plate. A roller is provided at the lower end of the support column, and the roller abuts against the upper surface of the base.
[0007] In a further improvement, the pneumatic mounting base includes a fixed sleeve and a pneumatic slider slidably disposed on the fixed sleeve. An air nozzle is provided at the end of the rotating shaft. One end of the air nozzle is connected to the pneumatic slider pipe, and the other end is connected to an external air source pipe.
[0008] In a further improvement, the translation module includes a moving motor, a reciprocating screw, and a moving column. The reciprocating screw is rotatably mounted inside the base. The moving motor is mounted on the side of the base and its output end is connected to the reciprocating screw. The lower end of the moving column is threadedly connected to the reciprocating screw. The top head is fixedly mounted on the upper end of the moving column and its axis is horizontal with the axis of the pneumatic mounting base.
[0009] In a further improvement, the support member includes a support cylinder disposed on the upper end of the mounting plate and a support plate disposed on the upper end of the support cylinder.
[0010] As a further improvement, the upper end of the support plate is provided with support rollers.
[0011] As a further improvement, the roller core shaft is provided with an assembly groove and a positioning groove at both ends.
[0012] Compared with existing technologies, this utility model has the following advantages: This utility model is easy to operate. Through the coordination of the fine-tuning support module and the translation module, precise installation and positioning of the roller core shaft are achieved. The pneumatic mounting base provides fixation, and the support module supports the drum according to the program, preventing the tension strip from loosening during winding and ensuring process stability. During roll changing, all components work together to quickly release the fixation and reset, facilitating the overhead crane to lift the drum, significantly reducing downtime and improving production efficiency. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the translation module of this utility model;
[0015] Figure 3 This is a schematic diagram of the drive mechanism of this utility model;
[0016] Figure 4 This is a schematic diagram of the structure of the support module of this utility model;
[0017] Figure 5 This is a schematic diagram of the structure of the support plate of this utility model.
[0018] In the diagram, 1. Base; 2. Drive mechanism; 21. Drive column; 22. Drive module; 221. Rotating shaft; 2211. Drive disc; 2212. Air nozzle; 222. Pneumatic mounting base; 2221. Fixed sleeve; 2222. Pneumatic slider; 23. Drive motor; 3. Limiting mechanism; 31. Translation module; 311. Moving motor; 312. Reciprocating screw; 313. Moving column; 32. Support module; 321. Mounting plate; 322. Support component; 3221. Support cylinder; 3222. Support plate; 32221. Support roller; 323. Support column; 3231. Roller; 4. Roller core shaft; 41. Assembly slot; 42. Positioning slot; 51. Top head. Detailed Implementation
[0019] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying 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, they should not be construed as limitations on this utility model.
[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0021] The following describes the embodiments and appendices. Figures 1-5 The technical solution of this utility model will be further described below.
[0022] Example 1
[0023] A PET sheet winding device includes: a base 1, a drive mechanism 2, a limiting mechanism 3, and a roller core shaft 4. The drive mechanism 2 includes a drive column 21 mounted on the base 1, a drive module 22 rotatably mounted on the drive column 21, and a drive motor 23 mounted on the side of the drive column 21. The drive module 22 includes a rotating shaft 221, a pneumatic mounting base 222 mounted on the left end of the rotating shaft 221, and a drive disk 2211 mounted on the right end of the rotating shaft 221. The drive disk 223 is connected to the drive motor 23. The base 1 is located away from the drive module 21. A movable column mechanism is provided on one side of the drive column. The limiting mechanism 3 includes a translation module 31 and a support module 32 provided on the side of the translation module 31. The translation module 31 is movably mounted on the base 1 and has a top head 51 at its upper end. The support module 32 includes a mounting plate 321 fixedly mounted on the side of the translation module 31, a support member 322 mounted on the mounting plate 321, and a support column 323 at the lower end of the mounting plate 321. A roller 3231 is provided at the lower end of the support column 323, and the roller 3231 abuts against the upper surface of the base 1.
[0024] like Figures 1-5 As shown, in actual use, the roller core 4 is first hoisted onto the support module 32 by a crane. Fine adjustments are made using the support module 32 to align the mounting end of the roller core 4 with the pneumatic mounting base 222. Next, the translation module 31 moves the roller core 4 towards the pneumatic mounting base 222, so that the mounting end of the roller core 4 is fitted onto the outside of the pneumatic mounting base 222. Subsequently, the pneumatic mounting base 222 is fixed to the roller core 4 under the action of an external air source. After fixing, the support module 32 resets, and the translation module 31 continues to move until the top head 51 abuts against the other end of the roller core 4, completing the limiting position.
[0025] After installation, one end of the pull tab is fixed to the roller core shaft 4. The drive motor 23 is started, driving the rotating shaft 221 to rotate, which in turn drives the roller core shaft 4 to rotate, thus achieving the winding of the pull tab. During the winding process, the support module 32 provides support to the roll according to a predetermined program to prevent the pull tab from loosening. After winding is completed, the drive motor 23 stops working, and the pneumatic mounting base 222 releases its fixation to the roller core shaft 4 under the action of an external air source. At this time, the support module 32 assumes the task of supporting the roll. The translation module 31 is reset, allowing the roller core shaft 4 to disengage from the pneumatic mounting base 222. Finally, the wound roller core shaft 4 is lifted away by a crane. The entire roll changing process is simple and efficient.
[0026] This invention is easy to operate. Through the coordination of the fine-tuning support module and the translation module, precise installation and positioning of the roller core shaft are achieved. The pneumatic mounting base provides fixation, and the support module supports the drum according to the program, preventing the tension strip from loosening during winding and ensuring process stability. When changing rolls, all components work together to quickly release the fixation and reset, facilitating the overhead crane to lift the roll off the drum, significantly reducing downtime and improving production efficiency.
[0027] As a further preferred embodiment, the pneumatic mounting base 222 includes a fixed sleeve 2221 and a pneumatic slider 2222 slidably disposed on the fixed sleeve 2221. An air nozzle 2212 is provided at the end of the rotating shaft 221. One end of the air nozzle 2212 is connected to the pneumatic slider 2222 via a pipe, and the other end is connected to an external air source via a pipe.
[0028] Specifically, when an external air source supplies air to the air nozzle 2212, the gas pressure pushes the pneumatic slider 2222 to move within the fixed sleeve 2221, thereby fixing or releasing the roller core 4.
[0029] As a further preferred embodiment, the translation module 31 includes a moving motor 311, a reciprocating screw 312, and a moving column 313. The reciprocating screw 312 is rotatably disposed within the base 1. The moving motor 311 is disposed on the side of the base 1 and its output end is connected to the reciprocating screw 312 for transmission. The lower end of the moving column 313 is threadedly connected to the reciprocating screw 312. The top head 51 is fixedly disposed on the upper end of the moving column 313 and its axis is horizontal with the axis of the pneumatic mounting base 222.
[0030] Specifically, when the mobile motor 311 starts, it drives the reciprocating screw 312 to rotate, and through the threaded transmission, the mobile column 313 moves horizontally along the base 1.
[0031] As a further preferred embodiment, the support member 322 includes a support cylinder 3211 disposed on the upper end of the mounting plate 321 and a support plate 3222 disposed on the upper end of the support cylinder 3211, and a support roller 32221 is disposed on the upper end of the support plate 3222.
[0032] Specifically, the support cylinder 3211 can drive the support plate 3222 to move up and down to accommodate drums of different diameters and heights; the support rollers 32221 can reduce friction with the drum 4, facilitate the installation and disassembly of the roller core shaft 4, and provide stable support.
[0033] As a further preferred embodiment, the roller core shaft 4 is provided with an assembly groove 41 and a positioning groove 42 at both ends.
[0034] Specifically, the assembly groove 41 is mainly used to cooperate with the pneumatic mounting base 222 to achieve quick installation and fixation of the roller core shaft 4. The positioning groove 42 is used to cooperate with the top head 51 to ensure the axial stability of the roller core shaft 4 during rotation and prevent axial displacement.
[0035] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.
Claims
1. A PET sheet winding device, characterized in that, include: The system comprises a base, a drive mechanism, a limiting mechanism, and a roller core shaft. The drive mechanism includes a drive column mounted on the base, a drive module rotatably mounted on the drive column, and a drive motor mounted on the side of the drive column. The drive module includes a rotating shaft, a pneumatic mounting base mounted on the left end of the rotating shaft, and a drive disc mounted on the right end of the rotating shaft. The drive disc is connected to the drive motor. A movable column mechanism is provided on the side of the base away from the drive column. The limiting mechanism includes a translation module and a support module mounted on the side of the translation module. The translation module is movably mounted on the base and has a top head at its upper end. The support module includes a mounting plate fixedly mounted on the side of the translation module, a support member mounted on the mounting plate, and a support column mounted on the lower end of the mounting plate. A roller is provided at the lower end of the support column, and the roller abuts against the upper surface of the base.
2. A PET sheet pulling and winding device according to claim 1, characterized in that The pneumatic mounting base includes a fixed sleeve and a pneumatic slider that is slidably disposed on the fixed sleeve. An air nozzle is provided at the end of the rotating shaft. One end of the air nozzle is connected to the pneumatic slider pipe, and the other end is connected to an external air source pipe.
3. The PET sheet pulling and winding device according to claim 1, characterized in that, The translation module includes a moving motor, a reciprocating screw, and a moving column. The reciprocating screw is rotatably mounted inside the base. The moving motor is mounted on the side of the base and its output end is connected to the reciprocating screw. The lower end of the moving column is threadedly connected to the reciprocating screw. The top head is fixedly mounted on the upper end of the moving column and its axis is horizontal with the axis of the pneumatic mounting base.
4. The PET sheet pulling and winding device according to claim 1, characterized in that, The support component includes a support cylinder disposed on the upper end of the mounting plate and a support plate disposed on the upper end of the support cylinder.
5. A PET sheet pulling and winding device according to claim 4, characterized in that The upper end of the support plate is provided with support rollers.
6. The PET sheet pulling and winding device according to claim 1, characterized in that, The roller core shaft is provided with an assembly groove and a positioning groove at both ends.