Film slitting mechanism

Abstract

The utility model provides a film slitting mechanism, and belongs to the technical field of film processing, the film slitting mechanism comprises a rack and an inflatable shaft at the top of the rack, the top of the rack is provided with a sliding groove capable of sliding in the vertical direction, the bottom of the sliding groove is provided with a cutting assembly, the cutting assembly comprises a plurality of blade seats arranged in parallel, and the bottoms of the blade seats are connected with blades in a clamped mode; a vertically-installed rotating shaft is arranged on the side wall of the blade seat, and a connecting rod is hinged to the outer side of the rotating shaft. According to the scheme, the spring and the limiting plate are arranged, the limiting plate and the spring are both arranged at the top of the blade seat, the limiting plate is extruded through the spring so that the limiting plate can downwards extrude the blade seat, the blade seat can be attached to the bottom of the sliding groove, and stable limiting of the blade seat is achieved through friction force between the limiting plate and the blade seat; therefore, the condition of inaccurate segmentation caused by horizontal deviation of the blade seat is prevented.

Description

Technical Field

[0001] The present application relates to the technical field of film processing, and in particular to a film slitting mechanism. Background Art

[0002] Plastic film is a thin and soft transparent sheet. Common ones are made of polyvinyl chloride, polyethylene, polypropylene, polystyrene and other resin materials. The film is light, flexible, transparent, water-resistant, acid-resistant and alkali-resistant. It also has good moisture-proof, dust-proof, fresh-keeping and heat-insulating functions. It has been widely used in food, medicine, chemical industry, machinery, printing, packaging and other industries.

[0003] In the prior art, a film is cut by a slitting mechanism to obtain film strips of a desired width. For example, a slitting machine for film processing with a publication number of CN219156081U adopts a slitting part composed of a mounting seat, a plurality of sliding rods and an adjusting threaded rod, etc., so that the distance between two adjacent blades can be adjusted conveniently, so that the device can cut the film into different sizes according to the needs, which greatly improves the versatility of the film slitting machine.

[0004] However, when the device is used, the sliding rod located in the middle of the mounting seat and the first connecting rod and the second connecting rod connected thereto have horizontal movable space, which are easily deviated by the extrusion of the film, resulting in inaccurate positioning and uneven strip width.

[0005] Therefore, the present application provides a film slitting mechanism to meet the needs. Utility Model Content

[0006] In view of this, the purpose of the present application is to provide a film slitting mechanism to facilitate the adjustment of the width between the blades, while accurately limiting the position of the blades to ensure the stability of the blades when slitting the film.

[0007] In order to solve the above technical problems, this application provides the following technical solutions:

[0008] A film slitting mechanism comprises a frame and an inflatable shaft on the top of the frame, a slide groove which can slide in the vertical direction is arranged on the top of the frame, a cutting assembly is arranged at the bottom of the slide groove, and the cutting assembly comprises a plurality of blade seats arranged in parallel, a blade is clamped at the bottom of the blade seat, a vertically installed rotating shaft is arranged on the side wall of the blade seat, a connecting rod is hinged on the outer side of the rotating shaft, two connecting rods adjacent to each other along the parallel arrangement direction of the blade seats are hinged as a whole, the blade seat at the right end of the slide groove is hinged to the slide groove, an adjusting stud passes through the left end of the slide groove, the adjusting stud is rotatably connected to the blade seat at the left end of the slide groove, a limit plate is provided on the top of the slide groove, and a spring is installed between the limit plate and the slide groove.

[0009] Preferably, a strip opening with an opening width half that of the blade seat is provided at the bottom of the slide groove, the blade passes through the bottom opening of the slide groove, and the outer side wall of the blade seat is arranged to fit the inner side wall of the slide groove.

[0010] Preferably, the rotating shaft is arranged parallel to the expansion direction of the blade seat, and the connecting rod is arranged in contact with the outer wall surface of the blade seat.

[0011] Preferably, the outer side wall of the blade seat is provided with a groove, the rotating shaft passes through the groove on the outer side of the blade seat, and the connecting rod is embedded in the groove on the outer side wall of the blade seat.

[0012] Preferably, the length of the groove on the outer side wall of the blade seat is the same as the length of the connecting rod.

[0013] Preferably, the connecting rod is in contact with the wall surface of the groove on the outer side wall of the blade seat.

[0014] Preferably, a slide groove with a "T"-shaped cross-section is opened on the front side of the blade seat, the blade is embedded in the interior of the slide groove on the front side of the blade seat, a positioning column is embedded in the top front end of the blade seat, and the end of the positioning column is embedded in the top of the blade.

[0015] Preferably, the positioning column is fixedly connected to the bottom of the limiting plate.

[0016] Preferably, the limit plate abuts against the top of the blade seat, the bottom of the limit plate is roughly designed, a guide rod is provided on the top of the limit plate, the guide rod passes through the top wall of the slide groove, and the spring is sleeved on the outer side of the guide rod.

[0017] Preferably, a slide rail is fixedly connected to the middle position of the top of the frame, a screw rod is passed through the interior of the slide rail, a slider is sleeved on the outer side of the screw rod, and the slide groove is fixed to one side of the slider.

[0018] Compared with the prior art, this application has at least the following beneficial effects:

[0019] In the above scheme, a spring and a limit plate are provided, and both the limit plate and the spring are provided on the top of the blade seat. The limit plate is squeezed by the spring so that the limit plate squeezes the blade seat downward, so that the blade seat fits against the bottom of the slide groove, and the friction force between the limit plate and the blade seat achieves a stable limit on the blade seat, thereby preventing inaccurate segmentation caused by horizontal offset of the blade seat.

[0020] In the above scheme, by setting the blade seat, the rotating shaft and the connecting rod, the blade seat and the rotating shaft are set orthogonally, and the connecting rod sleeved on the outside of the rotating shaft can only swing horizontally, further limiting the space for the blade seat to move in the vertical direction, so that multiple blade seats can be maintained at the same height, so that the blade can stably contact the film. At the same time, the connecting rod and the blade seat fit together, and the moving space of the connection part between the connecting rod and the blade seat is limited, making the overall structure more compact and stable.

[0021] In the above scheme, by setting a limit plate and a positioning column, the blade is slidably connected to the blade seat. By pulling the positioning column away from the blade, the blade can be flexibly disassembled when the positioning column is separated from the blade, so as to achieve the purpose of convenient maintenance and replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and to enable those skilled in the relevant art to make and use the present disclosure.

[0023] Figure 1 It is a schematic diagram of the overall structure in this application;

[0024] Figure 2 This is a schematic diagram of the connecting rod structure in this application;

[0025] Figure 3 This is a schematic diagram of the cross-sectional structure of the chute in this application;

[0026] Figure 4 This is a schematic diagram of the blade seat structure in this application;

[0027] Figure 5 This is a schematic diagram of the limiting plate structure in this application;

[0028] Figure 6 This is a schematic diagram of the slide rail structure in this application.

[0029] [reference numerals]

[0030] Frame 1, inflatable shaft 2, slide groove 3, rotating shaft 301, adjusting stud 302, limiting plate 303, guide rod 3031, spring 304, positioning column 305, blade seat 4, blade 5, connecting rod 6, slide rail 7, screw rod 701, slider 702. DETAILED DESCRIPTION

[0031] like Figure 1 , Figure 2 , Figure 3A film slitting mechanism shown in the embodiment of the present application comprises a frame 1 and an inflatable shaft 2 on the top thereof, a slide groove 3 which can slide in the vertical direction is arranged on the top of the frame 1, a cutting assembly is arranged at the bottom of the slide groove 3, the cutting assembly comprises a plurality of blade seats 4 arranged in parallel, a blade 5 is clamped at the bottom of the blade seat 4, a vertically mounted rotating shaft 301 is arranged on the side wall of the blade seat 4, a connecting rod 6 is hinged on the outer side of the rotating shaft 301, two connecting rods 6 adjacent to each other in the parallel arrangement direction of the blade seats 4 are hinged as a whole, the blade seat 4 at the right end of the slide groove 3 is hinged to the slide groove 3, an adjusting stud 302 is passed through the left end of the slide groove 3, the adjusting stud 302 is rotatably connected to the blade seat 4 at the left end of the slide groove 3, a limiting plate 303 is arranged on the top of the slide groove 3, a spring 304 is installed between the limiting plate 303 and the slide groove 3;

[0032] Pneumatic shafts 2 are provided on both sides of the top edge of the frame 1. The two pneumatic shafts 2 are parallel to each other. The pneumatic shafts 2 can be driven to rotate by an external power output device to achieve stable conveyance of the film under the cutting assembly.

[0033] Blade seats 4 are evenly distributed inside the chute 3, and the angle between the blade seats 4 and the central axis of the inflatable shaft 2 is 90°. The film is cut by the blade 5 at the bottom of the blade seat 4. Multiple evenly distributed blades 5 can evenly cut the film into film strips of the same width.

[0034] The blade seat 4 is slidably connected to the inside of the slide slot 3, and the multiple blade seats 4 are hinged to each other through the connecting rod 6. By rotating the adjusting stud 302, the adjusting stud 302 generates relative movement relative to the slide slot 3, so as to drive the connecting rod 6 at the end of the adjusting stud 302 to swing. Two adjacent connecting rods 6 are hinged, and multiple connecting rods 6 are in a linkage state to achieve synchronous swinging;

[0035] The angle between two adjacent connecting rods 6 is controlled by adjusting the direction of the rotating adjusting stud 302. When the angle between two adjacent connecting rods 6 changes, the distance between the connecting rods 6 changes synchronously, so that the blade seat 4 moves laterally under the drive of the rotating shaft 301, so as to realize the flexible adjustment of the distance between the blades 5.

[0036] Under the limitation of the slide groove 3, the blade seat 4 can only move horizontally relative to the slide groove 3. The limiting plate 303 is squeezed by the spring 304 at the top of the slide groove 3, so that the limiting plate 303 presses the blade seat 4 downward, and the blade seat 4 fits the bottom of the slide groove 3. The friction force between the limiting plate 303 and the blade seat 4 is used to achieve stable limitation of the blade seat 4, thereby preventing inaccurate segmentation caused by horizontal deviation of the blade seat 4.

[0037] In this embodiment, Figure 3-Figure 6As shown: a strip opening having an opening width of half that of the blade seat 4 is provided at the bottom of the chute 3, a blade 5 is arranged to pass through the bottom opening of the chute 3, and an outer side wall of the blade seat 4 is arranged to fit the inner side wall of the chute 3;

[0038] The blade 5 is arranged at the bottom of the slide groove 3 to facilitate cutting of the film. The blade seat 4 is limited by the inner wall of the slide groove 3. The blade seat 4 and the slide groove 3 are slidably connected to prevent the blade seat 4 from deflecting relative to the slide groove 3, and keep the multiple blades 5 parallel to each other to evenly cut the film.

[0039] The rotating shaft 301 is arranged parallel to the expansion direction of the blade seat 4, and the connecting rod 6 is arranged in contact with the outer wall surface of the blade seat 4;

[0040] The blade seat 4 is arranged orthogonally to the rotating shaft 301, and the connecting rod 6 sleeved on the outer side of the rotating shaft 301 can only swing horizontally, further limiting the space for the blade seat 4 to move in the vertical direction, so that the multiple blade seats 4 can be kept at the same height, so that the blade 5 can stably contact the film;

[0041] At the same time, the connecting rod 6 and the blade seat 4 fit each other, and the movable space of the connection part between the connecting rod 6 and the blade seat 4 is limited, so that the overall structure is more compact and has better stability.

[0042] The outer wall of the blade seat 4 is provided with a groove, the rotating shaft 301 passes through the outer groove of the blade seat 4, and the connecting rod 6 is embedded in the groove of the outer wall of the blade seat 4;

[0043] A groove is provided on the side wall of the blade seat 4 so as to be accurately snapped onto the outer side of the connecting rod 6. The vertical movable space of the blade seat 4 is limited by the connecting rod 6 so that multiple blade seats 4 can be maintained at the same height. At the same time, the structure is further made compact. When the connecting rod 6 is folded, it can be stored in the groove inside the blade seat 4. The integrity is strong, the blade seats 4 can fit tightly against each other, and the stability is good.

[0044] The length of the groove on the outer side wall of the blade seat 4 is the same as the length of the connecting rod 6;

[0045] The connecting rods 6 on both sides of the blade seat 4 can be unfolded to 180°, and the connecting rods 6 can also be folded into one to ensure that the blade seats 4 can fit tightly together. The spacing between the blade seats 4 is flexibly adjustable to meet the needs of slitting film strips of different widths.

[0046] The connecting rod 6 is in contact with the groove surface of the outer side wall of the blade seat 4;

[0047] The connecting rod 6 is stably connected to the blade seat 4, and the connecting rod 6 has a limiting effect on the blade seat 4. At the same time, the blade seat 4 is limited by the slide groove 3, so the overall gap of the device can be controlled and the overall matching accuracy is high.

[0048] A slide groove with a "T"-shaped cross section is provided on the front of the blade seat 4, and the blade 5 is embedded in the interior of the slide groove on the front of the blade seat 4. A positioning column 305 is embedded in the front end of the top of the blade seat 4, and the end of the positioning column 305 is embedded in the top of the blade 5.

[0049] The blade 5 is slidably connected to the blade seat 4. By pulling the positioning post 305 away from the blade 5, when the positioning post 305 is separated from the blade 5, the blade 5 can be flexibly disassembled to achieve the purpose of convenient maintenance and replacement.

[0050] The positioning column 305 is fixedly connected to the bottom of the limiting plate 303;

[0051] The positioning post 305 is fixed to the limiting plate 303 as a whole. The limiting plate 303 and the spring 304 cooperate to further limit the position of the positioning post 305 to avoid accidental separation of the positioning post 305 and the blade 5.

[0052] The limiting plate 303 abuts against the top of the blade seat 4, the bottom of the limiting plate 303 is rough, a guide rod 3031 is provided on the top of the limiting plate 303, the guide rod 3031 penetrates the top wall of the slide slot 3, and the spring 304 is sleeved on the outer side of the guide rod 3031;

[0053] The guide rod 3031 facilitates the operator to adjust the position of the limit plate 303. At the same time, the guide rod 302 limits the position of the spring 304 to prevent the spring 304 from slipping. The bottom surface of the limit plate 303 is further set to a rough state, which effectively ensures the friction coefficient of its surface, which is beneficial to improve the friction force to stably limit the blade seat 4.

[0054] A slide rail 7 is fixedly connected to the middle position of the top of the frame 1, a screw rod 701 is inserted into the interior of the slide rail 7, a slider 702 is sleeved on the outer side of the screw rod 701, and the slide groove 3 is fixed to one side of the slider 702;

[0055] The height of the slide block 702 is adjusted by rotating the screw rod 701 to adjust the height of the slide slot 3 so that the blade 5 is stably located between the two inflatable shafts 2 .

Claims

1. A film slitting mechanism, comprising a frame (1) and an air shaft (2) on the top thereof, characterized in that: The top of the frame (1) is provided with a slide groove (3) which can slide in the vertical direction, and the bottom of the slide groove (3) is provided with a cutting assembly, and the cutting assembly includes a plurality of blade seats (4) arranged in parallel, and a blade (5) is clamped at the bottom of the blade seat (4), and the side wall of the blade seat (4) is provided with a vertically installed shaft (301), and the outer side of the shaft (301) is hinged with a connecting rod (6), and two connecting rods (6) adjacent to each other along the parallel arrangement direction of the blade seats (4) are hinged as a whole, and the blade seat (4) at the right end of the slide groove (3) is hinged with the slide groove (3), and the left end of the slide groove (3) is penetrated by an adjusting stud (302), and the adjusting stud (302) is rotatably connected to the blade seat (4) at the left end of the slide groove (3), and a limit plate (303) is provided at the top of the slide groove (3), and a spring (304) is installed between the limit plate (303) and the slide groove (3).

2. The film slitting mechanism according to claim 1, characterized in that: The bottom of the slide groove (3) is provided with a strip opening whose opening width is half of that of the blade seat (4); the blade (5) is arranged to pass through the bottom opening of the slide groove (3); and the outer side wall of the blade seat (4) is arranged to fit the inner side wall of the slide groove (3).

3. The film slitting mechanism according to claim 2, characterized in that: The rotating shaft (301) is arranged parallel to the expansion direction of the blade seat (4), and the connecting rod (6) is arranged in contact with the outer wall surface of the blade seat (4).

4. The film slitting mechanism according to claim 1, characterized in that: The outer wall of the blade seat (4) is provided with a groove, the rotating shaft (301) passes through the outer groove of the blade seat (4), and the connecting rod (6) is embedded in the groove of the outer wall of the blade seat (4).

5. The film slitting mechanism according to claim 4, characterized in that: The length of the groove on the outer side wall of the blade seat (4) is the same as the length of the connecting rod (6).

6. The film slitting mechanism according to claim 4, characterized in that: The connecting rod (6) is in contact with the wall surface of the groove on the outer side wall of the blade seat (4).

7. The film slitting mechanism according to claim 1, characterized in that: The front side of the blade seat (4) is provided with a sliding groove with a "T"-shaped cross section, and the blade (5) is embedded in the interior of the sliding groove on the front side of the blade seat (4). A positioning column (305) is embedded in the front end of the top of the blade seat (4), and the end of the positioning column (305) is embedded in the top of the blade (5).

8. The film slitting mechanism according to claim 7, characterized in that: The positioning column (305) is fixedly connected to the bottom of the limiting plate (303).

9. The film slitting mechanism according to claim 1, characterized in that: The limit plate (303) abuts against the top of the blade seat (4); the bottom of the limit plate (303) is roughly configured; a guide rod (3031) is provided on the top of the limit plate (303); the guide rod (3031) passes through the top wall of the slide groove (3); and the spring (304) is sleeved on the outer side of the guide rod (3031).

10. The film slitting mechanism according to claim 1, characterized in that: A slide rail (7) is fixedly connected to the middle position of the top of the frame (1), a screw rod (701) is inserted into the interior of the slide rail (7), a slider (702) is sleeved on the outer side of the screw rod (701), and the slide groove (3) is fixed to one side of the slider (702).

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