A winding mechanism for a plastic packaging bag printing device

By designing a rotary mounting shaft, side fixing frame, winding drive assembly, and telescopic extrusion assembly in the plastic packaging bag printing equipment, the problem of time-consuming replacement of winding rollers in traditional equipment has been solved, enabling rapid replacement and stable winding, and improving winding efficiency.

CN224324851UActive Publication Date: 2026-06-05JIANGSU CAIHE NEW MATERIALS TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU CAIHE NEW MATERIALS TECHNOLOGY CO LTD
Filing Date
2025-06-25
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Traditional plastic packaging bag rewinding equipment takes a long time to change the rewinding rollers, which affects the rewinding speed.

Method used

A winding mechanism for printing plastic packaging bags was designed, which adopts a rotating mounting shaft, a side fixing frame, a winding drive assembly, a telescopic extrusion assembly, and a rotating positioning assembly to achieve rapid replacement of the winding roller and stable winding.

Benefits of technology

By rotating and adjusting the position of the side fixing bracket and using the telescopic extrusion assembly, the winding roller can be quickly replaced, saving replacement time and improving winding efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of winding mechanisms for plastic packaging bag printing equipment, including rotary mounting shaft, rotary mounting shaft is rotatably connected with side fixed frame, rotary positioning assembly is arranged between rotary mounting shaft and side fixed frame, fixed collar is provided on side fixed frame, connecting column is rotatably installed on fixed collar, rotating connection sleeve is installed on the side of connecting column by telescopic extrusion component, winding drive assembly is provided on the side of rotary mounting shaft, winding drive assembly is compatible with rotating connection sleeve, the winding mechanism for plastic packaging bag printing equipment is set, winding is rolled up on winding roller by rotary drive, after winding ends, the position of side fixed frame is adjusted, let another winding roller be placed in the position of winding, it is convenient to replace winding roller and wind quickly, without occupying a large amount of time to remove winding roller, relatively remove winding roller to save more time.
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Description

Technical Field

[0001] This utility model relates to the field of plastic packaging bag winding technology, and in particular to a winding mechanism for plastic packaging bag printing equipment. Background Technology

[0002] Plastic packaging bags are packaging bags made of plastic as raw material, used in the production of various daily necessities. They are widely used in daily life and industrial production. Rewinding machines are industrial equipment widely used in printing, packaging and metal processing. They are mainly used to roll up long strips of material into rolls. Different models of rewinding machines have functions such as automatic correction and tension adjustment. For example, the TYJX-900 model is suitable for printing on materials such as plastic woven bags. After printing, plastic packaging bags need to be rolled up by a rewinding machine.

[0003] In the process of winding plastic packaging bags, traditional winding equipment only has one winding roller. After the winding roller finishes winding, a new winding roller must be replaced and then the winding process is repeated. The process of replacing the winding roller takes a lot of time and seriously affects the winding speed. Therefore, a winding mechanism for plastic packaging bag printing equipment is proposed. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a winding mechanism for plastic packaging bag printing equipment, which solves the aforementioned problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A winding mechanism for printing plastic packaging bags includes a rotary mounting shaft, a side fixing frame rotatably sleeved on the rotary mounting shaft, a rotary positioning assembly between the rotary mounting shaft and the side fixing frame, a fixing collar on the side fixing frame, a connecting column rotatably mounted on the fixing collar, a rotating connecting sleeve mounted on one side of the connecting column via a telescopic extrusion assembly, a winding drive assembly on one side of the rotary mounting shaft, the winding drive assembly being adapted to the rotating connecting sleeve, and a winding roller sleeved at one end of the connecting column.

[0007] Preferably, the winding drive assembly includes a fixed rod disposed on one side of the rotating mounting shaft, a drive motor fixedly mounted on one side of the fixed rod, the output end of the drive motor being connected to a drive shaft, and one end of the drive shaft extending into the rotating connecting sleeve.

[0008] Preferably, a rotation drive groove is provided on the inner wall of the rotating connecting sleeve, and a rotation drive block is fixedly installed on the side of the driving shaft, with the rotation drive block located in the rotation drive groove.

[0009] Preferably, the telescopic extrusion assembly includes an insertion groove at the end of the connecting column, and the end of the rotating connecting sleeve is fixedly installed with the insertion column, one end of which is inserted into the insertion groove.

[0010] Preferably, the end of the connecting column is provided with multiple positioning grooves, the end of the rotating connecting sleeve is fixedly installed with a positioning column, one end of the positioning column extends into the positioning groove, and multiple compression springs are fixedly installed between the connecting column and the rotating connecting sleeve.

[0011] Preferably, a rotating bearing is installed on the inner wall of the fixing collar, and the connecting column is installed on the rotating bearing.

[0012] Preferably, the rotary positioning assembly includes an end fixing plate fixedly installed at the end of the rotary mounting shaft, a positioning bolt is installed on the end fixing plate, a positioning screw groove is opened on one side of the side fixing bracket, and one end of the positioning bolt is threaded into the positioning screw groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the winding mechanism of the plastic packaging bag printing equipment is equipped with a winding drive component, which drives the plastic packaging bag to be wound onto the winding roller by rotation. After winding is completed, the position of the side fixing frame is rotated and adjusted so that another winding roller is placed in the winding position, which facilitates quick replacement of the winding roller for winding. During the winding process, the operator can use tools such as wrenches to remove the winding roller that has been wound, without having to spend a lot of time removing the winding roller, which can save a lot of time compared to removing the winding roller.

[0014] The telescopic extrusion assembly is designed to allow for a detachable connection between the drive shaft and the rotating connecting sleeve. Multiple rotating connecting sleeves on the side fixing frame can be connected to the drive shaft. The rotating positioning assembly can fix the position of the side fixing frame after rotation, facilitating stable winding operations. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0017] Figure 3 This is a partial cross-sectional structural diagram of the present invention;

[0018] Figure 4 This is a schematic diagram of the structure of the present invention in partial explosion.

[0019] Figure 5 This utility model Figure 2 A schematic diagram of the structure of part A.

[0020] In the diagram: 1. Rotary mounting shaft; 2. Side fixing bracket; 3. Fixing collar; 4. Rotary bearing; 5. Connecting column; 6. Take-up roller; 7. End fixing plate; 8. Positioning screw groove; 9. Positioning bolt; 10. Fixing rod; 11. Drive motor; 12. Drive shaft; 13. Rotary drive block; 14. Rotary connecting sleeve; 15. Rotary drive groove; 16. Insertion groove; 17. Insertion column; 18. Positioning groove; 19. Positioning column; 20. Compression spring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example: Refer to Figure 1-5 A winding mechanism for printing plastic packaging bags includes a rotary mounting shaft 1, a side fixing frame 2 rotatably sleeved on the rotary mounting shaft 1, a rotary positioning component between the rotary mounting shaft 1 and the side fixing frame 2, a fixing collar 3 on the side fixing frame 2, a connecting column 5 rotatably mounted on the fixing collar 3, a rotating connecting sleeve 14 mounted on one side of the connecting column 5 via a telescopic extrusion component, a winding drive component on one side of the rotary mounting shaft 1, the winding drive component being adapted to the rotating connecting sleeve 14, and a winding roller 6 sleeved on one end of the connecting column 5.

[0023] Specifically, the winding drive assembly includes a fixed rod 10 disposed on one side of the rotating mounting shaft 1. A drive motor 11 is fixedly mounted on one side of the fixed rod 10. The output end of the drive motor 11 is connected to a drive shaft 12. One end of the drive shaft 12 extends into the rotating connecting sleeve 14. A rotating bearing 4 is installed on the inner wall of the fixed collar 3. A connecting column 5 is installed on the rotating bearing 4. The plastic packaging bag is wound onto a winding roller 6. Then, the drive motor 11 is started, driving the drive shaft 12 to rotate. Under the action of the rotating drive block 13 and the rotating drive groove 15, the rotating connecting sleeve 14 is driven to rotate. Under the action of the positioning column 19 and the positioning groove 18, the connecting column 5 is driven to rotate. The rotating bearing 4 facilitates the stable rotation of the connecting column 5 on the fixed collar 3. After the connecting column 5 rotates, it drives the winding roller 6 to rotate, which can wind and wind the plastic packaging bag. During the winding process, a common tensioning mechanism can be provided at the front of the winding roller 6. As winding continues, when the winding roller 6 finishes winding, winding stops.

[0024] Specifically, a rotation drive groove 15 is provided on the inner wall of the rotating connecting sleeve 14, and a rotation drive block 13 is fixedly installed on the side of the drive shaft 12. The rotation drive block 13 is located in the rotation drive groove 15. After the take-up roller 6 is finished winding, it needs to be replaced. With the cooperation of two workers, one worker rotates the positioning bolt 9 so that one end of it is disengaged from the positioning bolt groove 8, and the other worker pushes the rotating connecting sleeve 14. The rotating connecting sleeve 14 moves and drives the insertion post 17 to move in the insertion groove 16. The positioning post 19 moves into the positioning groove 18 and compresses the spring 20. The rotating connecting sleeve 14 is disengaged from the drive shaft 12. At this time, the side fixing frame 2 is rotated. Multiple take-up rollers 6 are set on the side fixing frame 2. The remaining take-up rollers 6 are in a ready state and can be used directly when needed. After rotation, another take-up roller 6 will be in the winding position. At this time, the plastic packaging bag is wrapped around the take-up roller 6 to prepare for the winding operation.

[0025] Specifically, the telescopic compression assembly includes an insertion groove 16 at the end of the connecting column 5, an insertion column 17 fixedly installed at the end of the rotating connecting sleeve 14, one end of the insertion column 17 being inserted into the insertion groove 16, multiple positioning grooves 18 at the end of the connecting column 5, a positioning column 19 fixedly installed at the end of the rotating connecting sleeve 14, one end of the positioning column 19 extending into the positioning groove 18, multiple compression springs 20 fixedly installed between the connecting column 5 and the rotating connecting sleeve 14, and a rotary positioning assembly including an end fixing plate 7 fixedly installed at the end of the rotary mounting shaft 1, a positioning bolt 9 installed on the end fixing plate 7, and a side fixing bracket 2 having a... There is a positioning screw groove 8, and one end of the positioning bolt 9 is threaded in the positioning screw groove 8. Loosen the rotating connecting sleeve 14, and under the elastic force of the compression spring 20, the rotating connecting sleeve 14 is fitted onto the drive shaft 12. The positioning bolt 9 is threaded in a corresponding positioning screw groove 8. After the drive motor 11 runs, the winding operation can be realized. Only the position of other winding rollers 6 needs to be adjusted to realize the quick winding and replacement operation. During the winding process, the staff can use tools such as wrenches to remove the winding rollers 6 that have been wound up. It does not take a lot of time to remove the winding rollers 6, which can save a lot of time compared to removing the winding rollers 6.

[0026] In use: After printing, the plastic packaging bags need to be wound up using a winding device. The plastic packaging bags are wound onto a winding roller 6. The drive motor 11 is started, which drives the drive shaft 12 to rotate. The connecting column 5 rotates, which in turn drives the winding roller 6 to rotate, thus winding the plastic packaging bags. As winding continues, the winding roller 6 needs to be replaced when it finishes winding. The operator loosens the positioning bolt 9 and simultaneously pushes the rotating connecting sleeve 14. The rotating connecting sleeve 14 separates from the drive shaft 12, and the side is fixed. With the fixed frame 2 in a rotatable state, rotate the other take-up roller 6 to the take-up position, wrap the plastic packaging bag around the take-up roller 6, and perform a quick take-up change operation. Loosen the rotating connecting sleeve 14, and under the elastic force of the compression spring 20, the rotating connecting sleeve 14 is fitted onto the drive shaft 12 for rotation drive. During the take-up process, the operator can use tools such as wrenches to remove the already taken-up roller 6 without spending a lot of time removing the take-up roller 6, which saves a lot of time compared to removing the take-up roller 6 and is convenient to use.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A winding mechanism for a plastic packaging bag printing equipment, comprising a rotating mounting shaft (1), characterized in that, A side fixing frame (2) is rotatably sleeved on the rotating mounting shaft (1). A rotating positioning component is provided between the rotating mounting shaft (1) and the side fixing frame (2). A fixing collar (3) is provided on the side fixing frame (2). A connecting column (5) is rotatably mounted on the fixing collar (3). A rotating connecting sleeve (14) is installed on one side of the connecting column (5) through a telescopic extrusion component. A winding drive component is provided on one side of the rotating mounting shaft (1). The winding drive component is adapted to the rotating connecting sleeve (14). A winding roller (6) is sleeved on one end of the connecting column (5).

2. The winding mechanism for a plastic packaging bag printing equipment according to claim 1, characterized in that, The winding drive assembly includes a fixed rod (10) disposed on one side of the rotating mounting shaft (1), a drive motor (11) is fixedly mounted on one side of the fixed rod (10), the output end of the drive motor (11) is connected to a drive shaft (12), and one end of the drive shaft (12) extends into the rotating connecting sleeve (14).

3. The winding mechanism for a plastic packaging bag printing equipment according to claim 2, characterized in that, The inner wall of the rotating connecting sleeve (14) is provided with a rotating drive groove (15), and a rotating drive block (13) is fixedly installed on the side of the driving shaft (12), with the rotating drive block (13) located in the rotating drive groove (15).

4. The winding mechanism for a plastic packaging bag printing equipment according to claim 1, characterized in that, The telescopic extrusion assembly includes a plug groove (16) opened at the end of the connecting column (5), and a plug groove (17) is fixedly installed at the end of the rotating connecting sleeve (14), with one end of the plug groove (17) inserted into the plug groove (16).

5. The winding mechanism for a plastic packaging bag printing equipment according to claim 4, characterized in that, The end of the connecting column (5) is provided with multiple positioning grooves (18), and the end of the rotating connecting sleeve (14) is fixedly installed with a positioning column (19). One end of the positioning column (19) extends into the positioning groove (18), and multiple compression springs (20) are fixedly installed between the connecting column (5) and the rotating connecting sleeve (14).

6. The winding mechanism for a plastic packaging bag printing equipment according to claim 1, characterized in that, A rotating bearing (4) is installed on the inner wall of the fixed collar (3), and the connecting column (5) is installed on the rotating bearing (4).

7. The winding mechanism for a plastic packaging bag printing equipment according to claim 1, characterized in that, The rotary positioning assembly includes an end fixing plate (7) fixedly installed at the end of the rotary mounting shaft (1), a positioning bolt (9) is installed on the end fixing plate (7), and a positioning screw groove (8) is opened on one side of the side fixing bracket (2), and one end of the positioning bolt (9) is threaded into the positioning screw groove (8).