一种方便更换塑料膜的收卷机复卷轴
The design of the rotary transmission bearing housing and quick-release bearing housing solves the problem of difficult air shaft disassembly, realizes rapid air shaft replacement, improves operating efficiency and reduces the risk of membrane roll damage, and is particularly suitable for replacing large membrane rolls.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KUNMING DONGFANG PLASTIC PAPER PACKAGING
- Filing Date
- 2025-08-06
- Publication Date
- 2026-07-17
AI Technical Summary
The air shaft of existing rewinding machines requires multiple people to work together when unwinding a full roll of film, which is inefficient and easily damages the end face of the film roll, especially large film rolls.
The air shaft is supported by a rotary transmission bearing seat and a quick-release bearing seat. The opening and closing of the support seat is controlled by an electromagnet to realize the horizontal and vertical conversion of the air shaft. The membrane roll is unloaded by gravity and the membrane core is fixed by a high-pressure air source, simplifying the replacement process.
It enables rapid replacement of the air shaft, improves operational efficiency, reduces the complexity of manual operation and the risk of membrane roll damage, and is particularly suitable for replacing large membrane rolls.
Smart Images
Figure CN224512757U_ABST
Abstract
Claims
1. A rewinding shaft for a plastic film changing easy winding machine, characterized in that, include: Air shaft (1); The rotary transmission bearing housing (2) includes: a rotary tube (3), whose sidewall is perpendicularly connected to one end of the shaft core (4) of the air shaft (1), a first bearing (5) is provided at the connection between the shaft core (4) and the rotary tube (3), and a rotary sealing joint (6) is fixedly provided on the rotary tube (3) and sleeved on the shaft core (4), the rotary sealing joint (6) connecting the high-pressure air source and the air bladder of the air shaft (1); a transmission tube (7), which is connected to one end of the rotary tube (3) through a second bearing (8), and has a transmission component inside to transmit the power of the drive motor to the shaft core (4); a support tube (9), which is connected to the other end of the rotary tube (3) through a third bearing (16); and a quick-release bearing housing (14), which supports the other end of the shaft core (4).
2. A plastic film changeable winding machine winding shaft according to claim 1, characterized in that: The transmission component includes: a transmission shaft (15), which is coaxially disposed in the transmission tube (7) via several fourth bearings (27), and one end is connected to the drive motor; a first bevel gear (17), which is disposed at the other end of the transmission shaft (15) and located in the rotating tube (3); and a second bevel gear (18), which is disposed on the shaft core (4) and meshes with the first bevel gear (17).
3. A plastic film changeable winding machine winding shaft according to claim 2, characterized in that, The quick-release bearing housing (14) includes: a first support (19), which is connected to the first bracket (20) at both ends and has a first semi-circular support groove (21) in the middle, and a semi-circular first bearing slot (22) in the first semi-circular support groove (21); a second support (23), which is hinged to the first support (19) at one end and has a second semi-circular support groove (24) in the middle, and a semi-circular second bearing slot (25) in the second semi-circular support groove (24), and the material of the second support (23) is high carbon steel; an electromagnet (26), which is installed on the first support (19) and attracts the second support (23) during operation so that the first semi-circular support groove (21) and the second semi-circular support groove (24) form a complete ring, and at the same time the first bearing slot (22) and the second bearing slot (25) form a complete circular slot; and a fifth bearing (28), which is provided on the shaft core (4) and can be inserted into the first bearing slot (22) and the second bearing slot (25).