一种供膜装置及制袋机
By introducing a metering system that links the metering unit and the drive unit into the film feeding device of the bag making machine, the problem of controlling the film feeding length under the influence of changes in the diameter of the film roll and the uniformity of the material has been solved, achieving higher precision film feeding and a stable production process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN VISION INTELLIGENT EQUIPMENT CO LTD
- Filing Date
- 2025-08-06
- Publication Date
- 2026-07-17
AI Technical Summary
Existing film feeding devices for bag making machines are difficult to control in terms of film feeding length due to factors such as variations in film roll diameter, uneven winding density, and differences in material uniformity. This results in poor precision and affects the production quality and efficiency of tear-off bags.
The film supply device employs a metering unit linked to a drive unit. The metering unit directly measures the length of the film cylinder and adjusts the film supply process in real time to ensure the accuracy of the release length.
It improves the control accuracy of film supply length, simplifies the control algorithm, enhances production stability and equipment versatility, and reduces production costs and scrap rate.
Smart Images
Figure CN224510573U_ABST
Abstract
Claims
1. A film supply device characterized by comprising: include: A cylindrical film support roller (2) is used to support the cylindrical film roll (6); The drive unit (4) is connected to the cylindrical film support roller (2) and is used to drive the cylindrical film support roller (2) to rotate in order to release the cylindrical film; The meter counting unit (3) is arranged opposite to the film support roller (2) and is used to measure the length of the released film; wherein the meter counting unit (3) is controlled and linked with the drive unit (4).
2. The film supply apparatus according to claim 1, wherein The meter counting unit (3) includes a mounting rod (33), a swing arm (32), and a meter counter (31). One end of the swing arm (32) is rotatably mounted on the mounting rod (33), and the other end is mounted on the meter counter (31). Based on the swing of the swing arm (32) relative to the mounting rod (33), the meter counter (31) can always abut against the film roll (6) on the film support roller (2).
3. The film supply apparatus according to claim 2, wherein It also includes a drive box (5), the drive unit (4) is disposed in the drive box (5), and one end of the cylindrical film support roller (2) extends into the drive box (5) and is connected to the drive unit (4) for transmission.
4. The film supply apparatus according to claim 3, wherein The drive unit (4) includes a motor (41) and a transmission assembly (42). The motor (41) is connected to the cylindrical film support roller (2) through the transmission assembly (42). The motor (41) is controlled and linked with the meter counter (31).
5. The film supply apparatus according to claim 4, wherein The transmission assembly (42) is a synchronous belt transmission assembly (42), a chain transmission assembly (42), or a gear transmission assembly (42).
6. The film supply apparatus according to claim 4, wherein It also includes two opposing support columns (21), and the two ends of the cylindrical film support roller (2) are rotatably mounted on the two support columns (21), one of which is located inside the drive box (5).
7. The film supply apparatus according to claim 3, wherein One end of the mounting rod (33) is fixed to the side wall of the drive box (5), so that the mounting rod (33) is kept parallel to the film support roller (2).
8. The film supply device according to claim 2, characterized in that, The mounting rod (33) is fitted with a bearing (331) and two limiting sleeves (332) located on both sides of the bearing (331). The swing arm (32) is fitted onto the bearing (331) to achieve rotatable installation on the mounting rod (33). The two limiting sleeves (332) are respectively restricted on both sides of the swing arm (32).
9. The film supply apparatus according to claim 2, wherein The swing arm (32) has a clearance recess (321) on the side facing the film support roller (2), and the swing arm (32) avoids contact with the film roll (6) on the film support roller (2) through the clearance recess (321).
10. A bag making machine characterized by, Includes the film supply device as described in any one of claims 1-9.