Automatic film edge trimming and collecting mechanism
By designing an automatic edge trimming and collection mechanism, and utilizing a bidirectional screw to adjust the cutter spacing and a suction system to remove waste edges, the problem of edge defects in nonwoven fabrics has been solved, improving production efficiency and finished product quality.
Patent Information
- Application Number
- CN202522006442.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-18
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2035-09-18
AI Technical Summary
Nonwoven fabrics are prone to defects such as uneven thickness and twisting at the edges during molding. Irregular edge material during traditional winding process affects the appearance and performance of the finished product.
An automatic edge trimming and collection mechanism for film is designed, which adopts a bidirectional screw with adjustable cutter spacing and a suction system. The cutter spacing is adjusted by rotating the bidirectional screw and the waste edge is removed by the suction component.
It enables rapid adjustment of the cutting blade spacing, adapts to different specifications of nonwoven fabrics, and promptly removes waste edges, thereby improving production efficiency and finished product quality.
Smart Images

Figure CN223619893U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coating machines, specifically to an automatic edge trimming and collection mechanism for film edges. Background Technology
[0002] A coating machine creates composite materials with specific properties by uniformly applying a coating to the surface of flexible substrates such as paper, plastic film, non-woven fabric, and woven fabric, followed by cooling and setting. These properties include improved surface gloss, increased hardness and abrasion resistance, enhanced airtightness, water resistance, oil resistance, and moisture resistance.
[0003] Nonwoven fabrics are prone to defects such as uneven thickness and twisting at the edges during molding. Irregular edge material during traditional winding process affects the appearance and performance of the finished product. Utility Model Content
[0004] To address the aforementioned problems, the purpose of this invention is to provide an automatic edge trimming and collection mechanism for nonwoven fabric rolls with adjustable cutter spacing and efficient waste edge collection, thereby improving the quality of nonwoven fabric rolls.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic film edge trimming and collection mechanism, comprising:
[0006] The frame is equipped with parallel guide rails, a bidirectional screw, and a bottom cutter roller.
[0007] Two slide blocks are slidably mounted on the guide rail. A cylinder is installed on the top of each slide block. The piston rod of the cylinder is connected to a motor. A cutter is mounted on the motor shaft. The slide blocks are provided with threaded holes. The threaded holes of the two slide blocks have opposite helical directions and are screwed to the bidirectional screw rod. The distance between the two cutters is adjusted by rotating the bidirectional screw rod. A handwheel is provided at the end of the bidirectional screw rod.
[0008] The bottom blade roller is positioned below the cutter;
[0009] It also includes a suction assembly located below the bottom cutter roller. The suction assembly includes a connecting plate connected to the slide and a suction pipe. The suction pipe is fixedly connected to the connecting plate. The upper end of the vertical section of the suction pipe is trumpet-shaped and aligned with the bottom of the cutter. The horizontal section of the suction pipe is connected to the main air duct on the side wall of the frame. The main air duct is connected to the suction pipe through a guide pipe (i.e., the horizontal section of the suction pipe can be extended and inserted into the corresponding guide pipe). The main air duct is connected to the suction pump.
[0010] The two sections of the bidirectional screw with opposite thread directions respectively mate with the threaded holes of the slide block.
[0011] The cutter is a circular rotating blade.
[0012] The beneficial effects of this utility model are:
[0013] 1. The bidirectional screw drive enables rapid adjustment of the cutter spacing, adapting to different specifications of nonwoven fabrics;
[0014] 2. The suction system promptly removes waste edges to prevent contamination of the rolled material;
[0015] 3. The structure is compact and the operation is simple, which improves production efficiency and product yield.
[0016] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description
[0017] Figure 1 This is a front view structural diagram of a specific embodiment of the present utility model;
[0018] Figure 2 This is a side view of a specific embodiment of the present utility model.
[0019] Explanation of reference numerals in the attached drawings: 1-Frame, 2-Guide rail, 3-Double screw, 31-Handwheel, 4-Bottom blade roller, 5-Slide seat, 6-Cylinder, 7-Motor, 8-Cutter, 9-Connecting plate, 10-Suction pipe, 11-Guide pipe, 12-Main air duct. Detailed Implementation
[0020] The present invention will be described in detail below through embodiments, which are only used to further illustrate the present invention and should not be construed as limiting the scope of protection of the present invention.
[0021] like Figure 1 , Figure 2 As shown, this embodiment discloses an automatic edge trimming and collection mechanism for film, comprising:
[0022] The frame 1 is equipped with parallel guide rails 2, bidirectional screws 3, and bottom cutter rollers 4.
[0023] Two slide blocks 5 are slidably mounted on the guide rail 2. A cylinder 6 is mounted on the top of each slide block 5. The piston rod of the cylinder is connected to a motor 7. A cutter 8 is mounted on the motor shaft. The slide block 5 is provided with a threaded hole 51. The threaded holes 51 of the two slide blocks 5 have opposite spiral directions and are screwed to the bidirectional screw rod 3. The distance between the two cutters 8 can be adjusted by rotating the bidirectional screw rod 3. A handwheel 31 is provided at the end of the bidirectional screw rod 3.
[0024] The bottom blade roller 4 is positioned below the cutter 8;
[0025] It also includes a suction assembly located below the bottom cutter roller 4. The suction assembly includes a connecting plate 9 connected to the slide block 5 and a suction pipe 10. The suction pipe 10 is fixedly connected to the connecting plate 9. The upper end of the suction pipe 10 is flared and aligned with the bottom of the cutter 8. The horizontal section of the suction pipe 10 is connected to the main air pipe 12 on the side wall of the frame 1. The main air pipe 12 is connected to the suction pipe 10 through the guide pipe 11 (the horizontal section of the suction pipe can be extended and inserted into the corresponding guide pipe). The main air pipe 12 is connected to the suction pump.
[0026] The two sections of the bidirectional screw 3 with opposite thread directions respectively mate with the threaded holes of the slide block 5.
[0027] The cutter 8 is a circular rotating blade.
[0028] During use, as the nonwoven fabric is conveyed by the bottom blade roller 4, the two cylinders 6 push their respective cutters 8 downwards, and the motor 7 drives the cutters to rotate and trim the edges. Adjusting the handwheel 31 rotates the bidirectional screw 3, causing the two slides 5 to move towards or away from each other, thus adjusting the distance between the cutters 8. The trimmed waste edges are collected by the suction pipe 10 with a flared port and discharged through the main air duct 12.
[0029] By adopting the above technical solution, the following technical effects can be achieved:
[0030] 1. The bidirectional screw drive enables rapid adjustment of the cutter spacing, adapting to different specifications of nonwoven fabrics;
[0031] 2. The suction system promptly removes waste edges to prevent contamination of the rolled material;
[0032] 3. The structure is compact and the operation is simple, which improves production efficiency and product yield.
Claims
1. An automatic edge trimming and collection mechanism for film, characterized in that, include: The frame (1) is equipped with parallel guide rails (2), bidirectional screws (3), and bottom cutter rollers (4). Two slide blocks (5) are slidably mounted on the guide rail (2). A cylinder (6) is mounted on the top of each slide block (5). The piston rod of the cylinder is connected to a motor (7). A cutter (8) is mounted on the motor shaft. The slide block (5) is provided with a threaded hole (51). The threaded holes (51) of the two slide blocks (5) have opposite spiral directions and are screwed to the bidirectional screw rod (3). The distance between the two cutters (8) is adjusted by rotating the bidirectional screw rod (3). A handwheel (31) is provided at the end of the bidirectional screw rod (3). The bottom blade roller (4) is positioned below the cutter (8); It also includes a suction assembly located below the bottom cutter roller (4). The suction assembly includes a connecting plate (9) connected to the slide (5) and a suction pipe (10). The suction pipe (10) is fixedly connected to the connecting plate (9). The upper end of the suction pipe (10) is horn-shaped and aligned with the bottom of the cutter (8). The horizontal section of the suction pipe (10) is connected to the main air pipe (12) on the side wall of the frame (1). The main air pipe (12) is connected to the suction pipe (10) through the guide pipe (11). The main air pipe (12) is connected to the suction pump.
2. The automatic edge trimming and collection mechanism for the membrane according to claim 1, characterized in that, The two sections of the bidirectional screw (3) with opposite thread directions respectively engage with the threaded holes of the slide block (5).
3. The automatic edge trimming and collection mechanism for the membrane according to claim 1, characterized in that, The cutter (8) is a circular rotating blade.