A roll changing auxiliary positioning device for a turnover cutter holder
By introducing a ring support assembly and photoelectric switch into the aluminum-plastic film processing equipment, automatic control of the cutter is achieved, solving the problem that operators have difficulty accurately judging the timing of the cut, reducing film breakage waste, and improving the accuracy and efficiency of roll changing operations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI ZIJIANG NEW MATERIAL APPL TECH CO LTD
- Filing Date
- 2025-07-25
- Publication Date
- 2026-07-21
AI Technical Summary
In aluminum-plastic film processing equipment, as production demand increases and machine operating speed improves, operators find it difficult to accurately judge the timing of cutting, leading to frequent film breakage and waste.
Design a roll changing auxiliary positioning device for a flip cutter holder, including a ring support assembly, a photoelectric switch and a cutter solenoid valve. The photoelectric switch detects the rotation position of the ring support assembly and controls the cutter solenoid valve to automatically cut, realizing roll changing without manual alignment.
It reduces the frequency of operator errors, decreases film breakage waste, and improves the accuracy and efficiency of roll changing operations.
Smart Images

Figure CN224530174U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an auxiliary positioning device for changing rolls on a flip-cutting cutter holder. Background Technology
[0002] The flip-cutting holder is an important component of aluminum-plastic film processing equipment. Its main functions are to fix the raw materials, create tension, and complete the roll changing operation.
[0003] During equipment operation, when the raw material roll diameter reaches the roll change diameter, the operator will activate the flipping knife holder to perform the roll change operation. At this time, the operator needs to judge the timing of the cut based on the joint position of the next roll of raw material. However, with the continuous increase in production demand and the continuous increase in machine operating speed, it is becoming increasingly difficult for the operator to grasp the timing of the cut, which can easily cause film breakage and lead to unnecessary waste.
[0004] Therefore, a flip-cutting holder roll changing auxiliary positioning device is proposed to address the above problems. Utility Model Content
[0005] The purpose of this invention is to overcome the existing defects by providing a flip-cutting holder roll changing auxiliary positioning device, which reduces the frequency of operator errors and reduces waste.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a flip-cutter holder roll changing auxiliary positioning device, comprising a ring support assembly, a photoelectric switch, and a cutter solenoid valve;
[0007] The ring support assembly is connected to the drive shaft, and the photoelectric switch is located below the cutter and on the same horizontal line as the drive shaft; the photoelectric switch is electrically connected to the cutter solenoid valve, and the cutter solenoid valve is electrically connected to the cutter;
[0008] The ring support assembly rotates with the drive shaft, and the photoelectric switch detects the rotation position of the ring support assembly in real time, so as to enable the cutter solenoid valve to accurately control the cutter to perform the cutting operation.
[0009] Preferably, the ring bracket assembly includes a reflector fixing ring, with a reflector connected to one side of the outer ring of the reflector fixing ring, and the reflector and the photoelectric switch are on the same horizontal line.
[0010] Preferably, the photoelectric switch is connected to a photoelectric switch mounting bracket.
[0011] Preferably, a platform is formed on the outer ring of the reflector fixing ring, and a reflector fixing hole is formed on the platform. The reflector is fixed by a pin passing through the reflector fixing hole.
[0012] Preferably, the reflector fixing ring has multiple fixing screw holes at equal intervals on its surface, and is connected to the drive shaft by multiple hand-tightened screws.
[0013] Compared with the prior art, the beneficial effects of this utility model are: This flip-cutter holder roll changing auxiliary positioning device, by setting a ring support assembly, a photoelectric switch and a cutter solenoid valve; when the reflector reaches the designated position, the photoelectric switch is triggered, the cutter solenoid valve is started, and the cutter automatically cuts to complete the roll changing action, without the need for manual alignment, reducing the frequency of operator errors and reducing waste. Attached Figure Description
[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0015] Figure 1 This is a schematic diagram of the installation of the flip-cutting cutter holder roll changing auxiliary positioning device of this utility model;
[0016] Figure 2 This is a detailed view of the reflector fixing ring of this utility model;
[0017] Figure 3 This is a detailed view of the reflector of this utility model;
[0018] Figure 4 This is a side view of the reflector fixing ring of this utility model;
[0019] Figure 5 This is a schematic diagram of the installation of the photoelectric switch of this utility model.
[0020] In the diagram: 1. Reflector fixing ring; 2. Hand screw; 3. Fixing screw hole; 4. Reflector; 5. Reflector fixing hole; 6. Photoelectric switch mounting bracket; 7. Photoelectric switch; 8. Connector tape; 9. Cutter; 10. Cutter solenoid valve; 11. Drive shaft; 12. Platform. 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] Please see Figure 1-5A flip-cutter holder rewinding auxiliary positioning device includes a ring support assembly, a photoelectric switch 7, and a cutter solenoid valve 10. The ring support assembly is connected to a drive shaft 11, and the photoelectric switch 7 is located below the cutter 9 and on the same horizontal line as the drive shaft 11. The photoelectric switch 7 is electrically connected to the cutter solenoid valve 10, and the cutter solenoid valve 10 is electrically connected to the cutter 9. The ring support assembly rotates with the drive shaft 11, and the photoelectric switch 7 detects the rotation position of the ring support assembly in real time, so that the cutter solenoid valve 10 can accurately control the cutter 9 to perform cutting operations.
[0023] Specifically, the ring bracket assembly includes a reflector fixing ring 1, with a reflector 4 connected to one side of the outer ring of the reflector fixing ring 1. The reflector 4 and the photoelectric switch 7 are on the same horizontal line. A platform 12 is formed on the outer ring of the reflector fixing ring 1, and a reflector fixing hole 5 is formed on the platform 12. The reflector 4 is fixed by a pin passing through the reflector fixing hole 5.
[0024] Specifically, the photoelectric switch 7 is connected to the photoelectric switch mounting bracket 6.
[0025] Specifically, multiple fixing screw holes 3 are equally spaced on the surface of the reflector fixing ring 1, and it is connected to the drive shaft 11 by multiple hand-tightening screws 2.
[0026] Please see Figure 1 The reflector fixing ring 1 is fitted onto the drive shaft 11. The reflector 4 is fixed onto the ring through the reflector fixing hole 5 and its position is adjusted to the joint tape 8. Then, it is fixed with the hand screw 2. The photoelectric switch mounting bracket 6 is installed below the cutter 9. The photoelectric switch 7 is then fixed on the bracket and ensured to be on the same horizontal line as the reflector 4. When the roll change begins, the joint tape 8 rotates to the designated position and triggers the photoelectric switch 7, which starts the cutter solenoid valve 10 and completes the cutter action.
[0027] This flip-cutter holder roll changing auxiliary positioning device adjusts the reflector 4, which is installed on the side of the drive shaft 11, to be horizontal with the joint tape 8 when the operator starts the film splicing operation. When the flip is in place and the cutting switch is pressed, the reflector 4 reaches the designated position along with the rotation of the film roll, triggering the photoelectric switch 7, starting the cutter solenoid valve 10, and the cutter 9 automatically cuts, completing the roll changing operation without manual alignment.
[0028] This flip-cutter holder roll changing auxiliary positioning device is equipped with a ring support assembly, a photoelectric switch 7, and a cutter solenoid valve 10. When the reflector 4 reaches the designated position, the photoelectric switch 7 is triggered, the cutter solenoid valve 10 is activated, and the cutter 9 automatically cuts to complete the roll changing action. No manual alignment is required, which reduces the frequency of operator errors and waste.
[0029] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A flip-cutting cutter holder roll changing auxiliary positioning device, characterized in that, Includes a ring support assembly, a photoelectric switch (7), and a cutter solenoid valve (10); The ring support assembly is connected to the drive shaft (11), and the photoelectric switch (7) is located below the cutter (9) and on the same horizontal line as the drive shaft (11); the photoelectric switch (7) is electrically connected to the cutter solenoid valve (10), and the cutter solenoid valve (10) is electrically connected to the cutter (9); The ring support assembly rotates with the drive shaft (11), and the photoelectric switch (7) detects the rotation position of the ring support assembly in real time, so that the cutter solenoid valve (10) can accurately control the cutter (9) to perform cutting operations.
2. The flip-cutter holder roll changing auxiliary positioning device according to claim 1, characterized in that, The ring bracket assembly includes a reflector fixing ring (1), and a reflector (4) is connected to one side of the outer ring of the reflector fixing ring (1). The reflector (4) and the photoelectric switch (7) are on the same horizontal line.
3. The flip-cutter holder roll changing auxiliary positioning device according to claim 1, characterized in that, The photoelectric switch (7) is connected to the photoelectric switch mounting bracket (6).
4. The flip-cutter holder roll changing auxiliary positioning device according to claim 2, characterized in that, A platform (12) is provided on the outer ring of the reflector fixing ring (1), and a reflector fixing hole (5) is provided on the platform (12). The reflector (4) is fixed by a pin passing through the reflector fixing hole (5).
5. The flip-cutter holder roll changing auxiliary positioning device according to claim 2, characterized in that, The reflector fixing ring (1) has multiple fixing screw holes (3) evenly spaced on its surface and is connected to the drive shaft (11) by multiple hand-tightened screws (2).