一种吹塑薄膜牵引装置
By designing a blown film traction device with a drive roller and a slitting mechanism, the problem of the inability to cut films to a suitable width in the existing technology has been solved. This device achieves effective film traction and cutting, is suitable for films of different thicknesses and widths, is easy to use, and has few limitations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YINGKOU LONGSHENG IND CO LTD
- Filing Date
- 2025-09-01
- Publication Date
- 2026-07-17
AI Technical Summary
Existing film traction devices cannot cut the film to the appropriate width during the traction process according to customer needs, making them inconvenient to use and highly limited.
A blown film traction device was designed, comprising a drive roller, a driven roller, a drive mechanism, and a slitting mechanism. The film is tractioned by the extrusion and rotation of the drive roller and the driven roller, and the film is cut to a suitable width by the slitting mechanism. The drive mechanism consists of a fixed plate, a drive motor, a rotating shaft, a disc, and a lifting mechanism. The slitting mechanism consists of a distance adjustment mechanism and a cutter, which can adjust the cutter spacing to accommodate films of different widths.
It enables effective traction and cutting of films to the appropriate width, is easy to use, has few limitations, is highly practical, and is suitable for films of different thicknesses and widths.
Smart Images
Figure CN224512765U_ABST
Abstract
Claims
1. A blown film traction device, comprising: a base plate (1), a support plate (2), and a driven roller (3), wherein the support plate (2) is fixedly mounted on the base plate (1), and the driven roller (3) is rotatably mounted on the support plate (2); characterized in that: The blown film traction device further includes: a drive roller (4), a drive mechanism and a slitting mechanism; the drive roller (4) is located above the driven roller (3), the slitting mechanism is installed on the drive roller (4) and has the function of slitting, the drive roller (4) is installed on the drive mechanism and the drive mechanism is used to drive the drive roller (4) to rotate and lift.
2. The blown film traction device according to claim 1, characterized in that: The drive mechanism includes: a fixed plate (5), a drive motor (6), two rotating shafts (7), two discs (8), multiple connecting rods (9), and a lifting mechanism. The fixed plate (5) is mounted on the lifting mechanism, which is used to lift the fixed plate (5). The drive motor (6) is fixedly mounted on the fixed plate (5). The two rotating shafts (7) are rotatably mounted on the front and rear parts of the fixed plate (5), respectively. The power output end of the drive motor (6) is connected to one of the rotating shafts (7). The two discs (8) are fixedly mounted on the two rotating shafts (7), respectively. The two discs (8) are mounted on the front and rear ends of the drive roller (4) through multiple connecting rods (9), respectively. The two rotating shafts (7) are coaxial with the drive roller (4).
3. The blown film traction device according to claim 2, characterized in that: The lifting mechanism includes: a hoisting frame (10), a hydraulic cylinder (11), a lifting rod (12), and a sliding rod (13). The hydraulic cylinder (11) is fixedly installed on the upper end of the hoisting frame (10). The lifting rod (12) and the sliding rod (13) are both slidably installed on the hoisting frame (10). The power output end of the hydraulic cylinder (11) is connected to the upper end of the lifting rod (12). The fixing plate (5) is fixedly installed on the lower end of the lifting rod (12) and the sliding rod (13).
4. The blown film traction device according to claim 1, characterized in that: The slitting mechanism includes a distance adjustment mechanism and two sets of cutters (14). The two sets of cutters (14) are mounted on the drive roller (4) through the distance adjustment mechanism. The distance adjustment mechanism is used to adjust the distance between the two sets of cutters (14). The driven roller (3) is provided with multiple annular clearance grooves, which are used to avoid the cutters (14).
5. The blown film traction device according to claim 4, characterized in that: The distance adjustment mechanism includes: two mounting plates (15), a lead screw (16), two guide rods (17), two sliding blocks (18), and multiple connecting columns (19). The drive roller (4) has a cavity, and both the front and rear ends of the drive roller (4) are open. Multiple slots communicating with the cavity are provided on the arc surface of the drive roller (4). The two mounting plates (15) are respectively installed at the front and rear ends of the drive roller (4). The lead screw (16) is rotatably mounted on the two mounting plates (15). The front and rear parts of the lead screw (16) are respectively provided with external screws with opposite directions of rotation. The two light rods (17) are fixedly installed on the two mounting plates (15), and the two sliding blocks (18) are slidably installed on the two light rods (17). The two sliding blocks (18) are respectively screwed to the front and rear parts of the lead screw (16). The two sliding blocks (18) are located in the cavity of the drive roller (4). The two cutters (14) are provided with multiple connecting posts (19). The two cutters (14) are fixedly connected to the two sliding blocks (18) through multiple connecting posts (19). The multiple connecting posts (19) pass through multiple slots on the drive roller (4).
6. The blown film traction device according to claim 5, characterized in that: The distance adjustment mechanism further includes: a mounting block (20), a bolt (21), a friction block (22), and a moving rod (23). The mounting block (20) is fixedly mounted on the mounting plate (15), the bolt (21) is screwed onto the mounting block (20), the friction block (22) is located below the lead screw (16), the friction block (22) is rotatably connected to the end of the bolt (21), and the moving rod (23) is slidably mounted on the mounting block (20) and fixedly connected to the friction block (22).
7. The blown film traction device according to claim 4, characterized in that: Both the driving roller (4) and the driven roller (3) have rubber layers on their surfaces.