Edge cutting device for polyvinyl alcohol film processing
By introducing a movable blade and clamping assembly into the polyvinyl alcohol film edge cutting device, the problem of inaccurate edge cutting in the prior art is solved, achieving precise control and efficient edge cutting operation. The film edge can be directly wound onto the roll, simplifying subsequent processing.
Patent Information
- Application Number
- CN202520080140.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-14
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-01-14
AI Technical Summary
Existing polyvinyl alcohol film edge cutting devices, due to their fixed blades, cannot accurately control the cutting position, resulting in the need for secondary edge cutting, which is inconvenient to use.
Employing a movable blade system and clamping assembly, the blade position is precisely controlled by a bidirectional lead screw driven by a geared motor, which in turn moves the threaded sleeve and connecting frame. The cut film edge is secured by springs and magnets, ensuring that the cut film edge can be smoothly wound onto the roll after cutting.
It achieves precise control of the blade cutting position, reduces secondary cutting steps, improves cutting efficiency, and allows for easy recycling of the cut film edges.
Smart Images
Figure CN223849347U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to polyvinyl alcohol film technical field, especially polyvinyl alcohol film processing edge cutting device. BACKGROUND
[0002] Polyvinyl alcohol film, simply referred to as PVA film, PVA is the only vinyl polymer that can be used as carbon source and energy by bacteria, and the polyvinyl alcohol film produced by taking it as material has the characteristics of good compactness, high crystallinity and strong adhesion.
[0003] The cast preparation is prepared by coating the PVA raw material after dissolving and filtering on the drying roller, drying the PVA round groove material through the drying part inside the drying roller, and then after heat treatment, to obtain the semi-finished film, since the raw material is in liquid state, the edge after coating is not neat, so it is necessary to use the edge cutting device to cut the edge to ensure the size accuracy and quality.
[0004] The existing edge cutting device cuts the edge of the semi-finished film by two fixed blades, since the blade is fixed, the edge position of the cutting edge cannot be controlled, and the specified size film needs to be cut by other equipment for the second time, which is inconvenient to use. UTILITY MODEL CONTENTS
[0005] (I) technical problem solved
[0006] In view of the problems existing in the prior art, the utility model provides a polyvinyl alcohol film processing edge cutting device.
[0007] (II) technical scheme
[0008] In order to achieve the above purpose, the utility model is realized by the following technical scheme: a polyvinyl alcohol film processing edge cutting device, including the inside of the machine box is movably connected with the reel through the bearing seat, the inside of the reel is provided with the edge cutting assembly, the inside of the reel is provided with a plurality of clamping assemblies;
[0009] The edge cutting assembly includes a bidirectional screw rod movably connected in the reel, the outer surface of the bidirectional screw rod is threadedly connected with two threaded sleeves, the outer surface of the threaded sleeve is movably connected with a connecting frame, and the outer surface of the connecting frame is fixedly connected with a blade.
[0010] The clamping assembly includes a pressing block slidably connected in the reel, the inside of the pressing block is fixedly connected with a spring, the top end of the spring is fixedly connected with a plug, the upper surface of the plug is abutted with a moving block, the moving block slides in the inside of the reel, the side surface of the pressing block is fixedly connected with an abutment plate, and the outer surfaces of the abutment plate and the moving block are provided with magnets matched with each other.
[0011] As a preferred scheme of the polyvinyl alcohol film processing and trimming device, the inside of the machine box is fixedly connected with a reduction motor, and the output end of the reduction motor is fixedly connected with one end of the reel.
[0012] As a preferred scheme of the polyvinyl alcohol film processing and trimming device, the inside of the machine box is fixedly connected with a servo motor, the output end of the servo motor is fixedly connected with a worm, the end of the worm away from the servo motor is movably connected to the inside of the machine box through a bearing seat, the outer surface of the worm is meshingly connected with a worm wheel, and the inside of the worm wheel is connected with the outer surface of the bidirectional screw rod.
[0013] As a preferred scheme of the polyvinyl alcohol film processing and trimming device, the inside of the reel is provided with a cavity for accommodating the bidirectional screw rod, and the cavity is communicated with four rectangular openings matched with the connecting frame.
[0014] As a preferred scheme of the polyvinyl alcohol film processing and trimming device, the inside of the rectangular opening is provided with a sliding groove for sliding of the moving block and the extrusion block, the inner wall of the sliding groove is provided with a sub-groove for limiting the moving block and the extrusion block, and the outer surfaces of the moving block and the extrusion block are both provided with a limiting strip matched with the sub-groove.
[0015] As a preferred scheme of the polyvinyl alcohol film processing and trimming device, the outer surface of the plug is provided with an inclined surface, the inside of the moving block is provided with a plug-in groove, and the inner wall of the plug-in groove is provided with an inclined surface matched with the plug.
[0016] (Three) beneficial effects
[0017] The polyvinyl alcohol film processing and trimming device has the following beneficial effects:
[0018] 1. The bidirectional screw rod is driven to rotate by the reduction motor, the connecting frame is driven to move by the threaded sleeve, the knife blade is driven to move by the connecting frame, the knife blades on both sides are simultaneously moved, the trimming position of the knife blade is controlled, the width of cutting is conveniently controlled, and subsequent secondary cutting is not needed.
[0019] 2. The plug is upwardly extruded to one corner of the film roll by the spring, the moving block is fixed by the abutting plate and the magnet on the outer surface of the moving block, one corner of the cut film edge is clamped, the clamped component clamps one end of the cut film edge to rotate when the reel rotates, and finally the cut film edge is wound on the reel, and subsequent material taking and recycling are facilitated. BRIEF DESCRIPTION OF DRAWINGS
[0020] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.
[0021] Figure 1 It is the overall structural schematic diagram of the present application.
[0022] Figure 2 It is the present application Figure 1 A zoomed-in view of the A place in the present application.
[0023] Figure 3 It is the internal structure schematic diagram of the present application case.
[0024] Figure 4 It is the structural schematic diagram of the present application edge cutting assembly.
[0025] Figure 5 It is the exploded structural schematic diagram of the present application clamping assembly.
[0026] Figure 6 It is the structural schematic diagram of the present application moving block.
[0027] In the drawings, 1, reel; 2, case; 3, edge cutting assembly; 301, bidirectional screw rod; 302, connecting frame; 303, threaded sleeve; 304, blade; 305, worm; 306, servo motor; 307, worm gear; 4, clamping assembly; 401, moving block; 402, spring; 403, extrusion block; 404, plug block; 405, magnet; 406, abutting plate; 5, speed reducer motor. DETAILED DESCRIPTION
[0028] The technical scheme in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application.
[0029] Embodiment 1
[0030] Referring to Figure 1 , Figure 3 and Figure 4For the first embodiment of the utility model, this embodiment provides a kind of polyvinyl alcohol film processing trimming device, including cabinet 2, the inside of cabinet 2 is movably connected with reel 1 by bearing seat, the inside of reel 1 is provided with trimming assembly 3, the inside of reel 1 is provided with several clamping assemblies 4, trimming assembly 3, including the bidirectional screw rod 301 movably connected in the inside of reel 1, the outer surface of bidirectional screw rod 301 is threadedly connected with two threaded sleeves 303, the outer surface of threaded sleeve 303 is movably connected with connecting frame 302, the outer surface of connecting frame 302 is fixedly connected with blade 304.
[0031] Specifically, the inside of cabinet 2 is fixedly connected with reduction motor 5, the output end of reduction motor 5 is fixedly connected with one end of reel 1, the inside of cabinet 2 is fixedly connected with servo motor 306, the output end of servo motor 306 is fixedly connected with worm 305, the end of worm 305 away from servo motor 306 is movably connected in the inside of cabinet 2 by bearing seat, the outer surface of worm 305 is meshingly connected with worm gear 307, the inside of worm gear 307 is meshingly connected with the outer surface of bidirectional screw rod 301, the inside of reel 1 is provided with cavity for accommodating bidirectional screw rod 301, the cavity is communicated with four rectangular openings matched with connecting frame 302.
[0032] Further, bidirectional screw rod 301 is driven to rotate by reduction motor 5, so that connecting frame 302 is driven to move by threaded sleeve 303, connecting frame 302 drives blade 304 to move, so that the movement of blade 304 on both sides is realized simultaneously, the trimming position of blade 304 is controlled, so that the width of cutting is conveniently controlled, when reel 1 is driven to rotate by reduction motor 5, reel 1 limits connecting frame 302 through the rectangular opening arranged in the inside, so that blade 304 is driven to rotate, and rotating blade 304 continues to cut the film.
[0033] Embodiment 2
[0034] Refer to Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6 For the second embodiment of the utility model, the clamping assembly 4 of the embodiment is based on the previous embodiment, including extrusion block 403 slidably connected in the inside of reel 1, spring 402 is fixedly connected in the inside of extrusion block 403, the top end of spring 402 is fixedly connected with plug block 404, the upper surface of plug block 404 abuts against moving block 401, moving block 401 slides in the inside of reel 1, the side surface of extrusion block 403 is fixedly connected with abutting plate 406, the outer surfaces of abutting plate 406 and moving block 401 are all provided with mutually matched magnets 405.
[0035] Specifically, the inner part of the rectangular opening is provided with a sliding groove for sliding of the moving block 401 and the extrusion block 403, the inner wall of the sliding groove is provided with a sub-groove for limiting the moving block 401 and the extrusion block 403, the outer surfaces of the moving block 401 and the extrusion block 403 are provided with limiting strips matched with the sub-groove, the outer surface of the plug 404 is provided with an inclined surface, the inner part of the moving block 401 is provided with a plug groove, and the inner wall of the plug groove is provided with an inclined surface matched with the plug 404.
[0036] Further, after one end of the edge is pulled up and inserted into the rectangular opening on the outer surface of the winding shaft 1, the extrusion block 403 and the moving block 401 are slid, one corner of the edge of the film at one end is inserted into the plug groove in the inner part of the moving block 401, the extrusion block 403 is slid so that the plug 404 is inserted into the inside of the film, the plug 404 is pressed upward to press one corner of the film by the spring 402, the moving block 401 is fixed by the abutting plate 406 and the magnet 405 on the outer surface of the moving block 401, so as to clamp one corner of the cut film edge, the clamping assembly 4 arranged in the inner part of the winding shaft 1 is arranged on both sides of the two blades 304, and is not arranged between the two blades 304, so that the cut edge film can be smoothly wound on both sides of the winding shaft 1, the cut film is used for recycling, so the winding quality is not considered, the winding shaft 1 drives the clamping assembly 4 to rotate for several rounds, so that the cut film can wrap the outer surface of the winding shaft 1, at this time the clamping assembly 4 does not affect the winding of the cut film, so the sliding and limiting of the moving block 401 and the extrusion block 403 in the inner part of the winding shaft 1 are not considered, the speed of the winding shaft 1 driven by the speed reducer 5 to rotate should be the same as the speed of the subsequent processing equipment to pull out the semi-finished film, the plug 404 will not be completely inserted into the plug groove in the inner part of the moving block 401 under the action of the spring 402, so that part of the inclined surface on the outer surface of the extrusion block 403 leaks out, so that the extrusion block 403 is pressed downward through the inclined surface in the subsequent process, and the clamped film is taken out.
[0037] Working principle: when the semi-finished polyvinyl alcohol film after heat treatment is cut, first drive the bidirectional screw rod 301 to rotate through the reduction motor 5, so as to drive the connecting frame 302 to move through the threaded sleeve 303, and the knife blade 304 is driven to move through the connecting frame 302, so that the two knife blades 304 move at the same time, the cutting position of the knife blade 304 is controlled, the width of the cutting is controlled, then one end of the semi-finished film is wound around the lower part of the reel 1, when passing through the reel 1, the film is cut on both sides by the knife blade 304 manually, then the edge of the film is pulled up and inserted into the rectangular opening on the outer surface of the reel 1, then the sliding extrusion block 403 and the moving block 401 are slid, one corner of the edge of the film is inserted into the slot in the moving block 401, the sliding extrusion block 403 is slid, the insert block 404 is inserted into the film, the insert block 404 is pressed upward by the spring 402, the moving block 401 is fixed by the abutment plate 406 and the magnet 405 on the outer surface of the moving block 401, so as to clamp one corner of the cut film edge, the other corner of the cut film edge is clamped by the same operation sequence, and the opposite side of the film is cut and operated, finally the clamping assembly 4 is clamped and fixed in the reel 1, the center of the cut and uniform part is pulled out through the lower part of the reel 1 and connected with the subsequent processing equipment, the subsequent processing equipment drives the film to move, the reduction motor 5 drives the reel 1 to rotate, the connecting frame 302 is limited by the rectangular opening in the reel 1, so as to drive the knife blade 304 to rotate, the rotating knife blade 304 continues to cut the film, and finally the polyvinyl alcohol film is cut and processed, the cutting position of the two knife blades 304 can be controlled, and when the reel 1 rotates, the clamped cut film edge is rotated, finally the cut film edge is wound on the reel 1, which is convenient for subsequent material taking and recycling.
[0038] It should be noted that in this paper, relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations.
Claims
1. A polyvinyl alcohol film processing trimming device comprising a cabinet (2), characterized in that: The inside of the case (2) is movably connected with a reel (1) through a bearing seat, the inside of the reel (1) is provided with a trimming assembly (3), and the inside of the reel (1) is provided with a plurality of clamping assemblies (4); The trimming assembly (3) comprises a bidirectional screw rod (301) movably connected in the inside of the reel (1), the outer surface of the bidirectional screw rod (301) is threadedly connected with two threaded sleeves (303), the outer surface of the threaded sleeve (303) is movably connected with a connecting frame (302), and the outer surface of the connecting frame (302) is fixedly connected with a blade (304). The clamping assembly (4) comprises a pressing block (403) slidably connected in the inside of the reel (1), the inside of the pressing block (403) is fixedly connected with a spring (402), the top end of the spring (402) is fixedly connected with an insertion block (404), the upper surface of the insertion block (404) is abutted with a moving block (401), the moving block (401) slides in the inside of the reel (1), the side surface of the pressing block (403) is fixedly connected with an abutment plate (406), and the outer surfaces of the abutment plate (406) and the moving block (401) are both provided with magnets (405) matched with each other.
2. A polyvinyl alcohol film processing trimming device according to claim 1, characterized in that: The inside of the case (2) is fixedly connected with a speed reducer motor (5), and one end of the speed reducer motor (5) is fixedly connected with the reel (1).
3. A polyvinyl alcohol film processing trimming device according to claim 2, characterized in that: The inside of the case (2) is fixedly connected with a servo motor (306), the output end of the servo motor (306) is fixedly connected with a worm (305), one end of the worm (305) away from the servo motor (306) is movably connected in the inside of the case (2) through a bearing seat, and the outer surface of the worm (305) is meshedly connected with a worm wheel (307).
4. A polyvinyl alcohol film processing trimming device according to claim 3, characterized in that: The inside of the reel (1) is provided with a cavity for accommodating the bidirectional screw rod (301), and the cavity is communicated with four rectangular openings matched with the connecting frame (302).
5. A polyvinyl alcohol film processing trimming device according to claim 4, characterized in that: The inside of the rectangular opening is provided with a sliding groove for sliding of the moving block (401) and the pressing block (403), the inner wall of the sliding groove is provided with a sub-groove for limiting the moving block (401) and the pressing block (403), and the outer surfaces of the moving block (401) and the pressing block (403) are both provided with limiting strips matched with the sub-groove.
6. A polyvinyl alcohol film processing trimming device according to claim 5, characterized in that: The outer surface of the insertion block (404) is provided with an inclined surface, the inside of the moving block (401) is provided with an insertion groove, and the inner wall of the insertion groove is provided with an inclined surface matched with the insertion block (404).