Polypropylene film trimming device

Abstract

The utility model provides a polypropylene film trimming device, which belongs to the field of polypropylene film trimming and comprises a workbench, a trimming mechanism is arranged at the top of the workbench, and a position adjusting component is arranged on one side of the trimming mechanism. According to the edge cutting mechanism, when the edge cutting machine is used, a film roller to be subjected to edge cutting is placed on the air swelling shaft and fixed through the air swelling shaft, then the first motor drives the air swelling shaft to rotate, the connecting rod and the cutter are pushed through the electric push rod, the cutter is made to be gradually close to the film roller, and then edge cutting operation is conducted on a film on the film roller; then, an exhaust fan is started, fine dust is sucked downwards by the exhaust fan, a large-size film can be adsorbed to the surface of a separation net, so that the dust is prevented from being sucked by workers, and meanwhile, the effect of collecting the large-size film can be achieved; and therefore, different positions of the film roller are cut, and the universality of the device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the edge cutting field of polypropylene film, in particular to an edge cutting device for polypropylene film. BACKGROUND

[0002] Polypropylene film is a plastic film material widely used in packaging, printing, food, medicine and other fields. Because the production process of polypropylene film usually adopts extrusion, blowing or stretching method, the edge part of the film often appears irregular shape or defect in the production process, which affects the appearance quality of the film. Therefore, edge cutting is an important step in the production process of polypropylene film.

[0003] After searching, the Chinese patent with patent announcement number CN212096518U discloses a film edge cutting device, which comprises a base, a fixed frame is welded on the base, a sliding groove is formed in the fixed frame, a positioning rod is arranged on the fixed frame and slides in the sliding groove, an edge cutting device is connected to the positioning rod through sliding, a gas cylinder is arranged at the bottom of the sliding groove, the piston rod of the gas cylinder is fixedly connected with the positioning rod, a limiting frame is fixedly connected to the edge cutting device, a bending piece is connected to the limiting frame through sliding, and the utility model drives the edge cutting device to cut by positioning the positioning rod through the piston rod of the gas cylinder, so that the edge cutting device cuts the film horizontally, which has smaller resistance and smaller influence on the film compared with the vertical cutting method. However, the following defects still exist:

[0004] During the cutting process of the device, a lot of small dust will be generated, which will be inhaled by workers, affecting their health. At the same time, the device cannot collect the waste cut down uniformly, making the workshop dirty and messy. Therefore, an edge cutting device for polypropylene film is proposed. UTILITY MODEL CONTENTS

[0005] The utility model aims at the problem that the existing edge cutting device for polypropylene film generates a lot of small dust during the cutting process of the film, which is inhaled by workers, affecting their health, and the device cannot collect the waste cut down uniformly, making the workshop dirty and messy.

[0006] In order to achieve the above utility model purpose, the utility model provides the following technical scheme:

[0007] The edge cutting device for polypropylene film is used to improve the above problems.

[0008] The utility model discloses a cutting edge mechanism is arranged on the top of workbench, and the cutting edge mechanism includes the recess, the isolation net, the exhaust fan, the first support plate, the second support plate, the rotation plate, the placement hole, the first motor, the gas inflation axle, the cutting knife and the adjustment assembly, and the recess is set up on the top of workbench, the isolation net is pegged to the lateral wall of recess, the exhaust fan is pegged to the lateral wall of workbench, the first support plate and the second support plate are arranged respectively at the both sides of isolation net, the rotation plate is rotatably connected to the top of first support plate, the placement hole is set up on the top end lateral wall of second support plate, the first motor is pegged to the lateral wall of rotation plate, the gas inflation axle is coaxially arranged on the output of first motor, and the cutting knife is arranged on one side of gas inflation axle.

[0009] As the utility model discloses preferred technical scheme, the adjustment assembly includes mounting plate, electric push rod and connecting rod, the mounting plate sets up at the one side of cutting knife away from gas inflation axle, electric push rod is hinged on the lateral wall of mounting plate, the connecting rod is hinged on the output of electric push rod, one end of connecting rod is hinged with mounting plate, and the other end of connecting rod is fixedly connected with cutting knife.

[0010] As the utility model discloses preferred technical scheme, the positioner includes rectangular groove, second motor, screw rod and sliding block, the rectangular groove is set up on the lateral wall of workbench, the second motor is pegged to the lateral wall of workbench, the screw rod is coaxially arranged on the output of second motor, the sliding block is screwly connected to the outside of screw rod, and the lateral wall of sliding block is fixedly connected with the lateral wall of mounting plate.

[0011] As the utility model discloses preferred technical scheme, the lateral wall of gas inflation axle is set up with a plurality of annular grooves, and a plurality of annular grooves are evenly distributed along the length direction of gas inflation axle.

[0012] As the utility model discloses preferred technical scheme, the lateral wall of workbench is set up with convex slot, the top end lateral wall of mounting plate is fixedly connected with convex block, and convex block and convex slot are slidably connected.

[0013] As the utility model discloses preferred technical scheme, the one end of gas inflation axle away from first motor is fixedly connected with bearing, the outer wall of bearing is fixedly connected with extension block, the top of second support plate is provided with screw rod, and the bottom of screw rod penetrates extension block and extends to the inside of second support plate.

[0014] As the utility model discloses preferred technical scheme, the top of workbench is set up with receiving groove, and the bottom of receiving groove is semicircular.

[0015] Compared with the prior art, the utility model has the advantages of:

[0016] 1. Through the setting of the trimming mechanism, the film roll to be trimmed is placed on the gas expansion shaft during use, and is fixed by the gas expansion shaft, then the first motor drives the gas expansion shaft to rotate, the connecting rod and the cutter are pushed by the electric push rod, the cutter gradually approaches the film roll, and then the film on the film roll is trimmed, then the air extractor is started, the air extractor attracts the fine dust downward, the film with large volume is adsorbed on the surface of the isolation net, so that the dust is prevented from being inhaled by workers, and the film with large volume can be collected.

[0017] 2. Through the setting of the position adjusting assembly, the second motor is started during use, so that the screw rod rotates, then the positions of the sliding block, the adjusting assembly and the cutter change, so that different positions of the film roll are cut, and the universality of the device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A structure diagram of the polypropylene film trimming device is provided.

[0019] Figure 2 A right view of the polypropylene film trimming device is provided.

[0020] Figure 3 A polypropylene film trimming device is provided. Figure 2 A sectional view of the polypropylene film trimming device at A-A is provided.

[0021] Figure 4 A structure diagram of the adjusting assembly and the position adjusting assembly of the polypropylene film trimming device is provided.

[0022] Figure 5 A polypropylene film trimming device is provided. Figure 3 An enlarged view of A in the polypropylene film trimming device is provided.

[0023] Figure 6 An extension block and a screw structure diagram of the polypropylene film trimming device is provided.

[0024] Indicated in the figure: 1, workbench; 2, trimming mechanism; 3, position adjusting assembly; 4, annular groove; 5, convex groove; 6, convex block; 7, bearing; 8, extension block; 9, screw; 10, storage groove; 201, groove; 202, isolation net; 203, air extractor; 204, first support plate; 205, second support plate; 206, rotating plate; 207, placing hole; 208, first motor; 209, gas expansion shaft; 210, cutter; 211, adjusting assembly; 21101, mounting plate; 21102, electric push rod; 21103, connecting rod; 301, rectangular groove; 302, second motor; 303, screw rod; 304, sliding block. DETAILED DESCRIPTION

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0026] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0027] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0028] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0029] like Figures 1-6 As shown, this embodiment proposes a polypropylene film edge-cutting device, including a worktable 1, an edge-cutting mechanism 2 is provided on the top of the worktable 1, and an adjustment component 3 is provided on one side of the edge-cutting mechanism 2.

[0030] like Figure 1 , Figure 3 and Figure 4As shown, the trimming mechanism 2 comprises a groove 201, a separation net 202, an air extractor 203, a first support plate 204, a second support plate 205, a rotating plate 206, a placing hole 207, a first motor 208, an air expansion shaft 209, a cutter 210 and an adjusting assembly 211. The groove 201 is formed on the top of the workbench 1. The separation net 202 is bolted on the sidewall of the groove 201. The air extractor 203 is bolted on the sidewall of the workbench 1. The first support plate 204 and the second support plate 205 are respectively arranged on the two sides of the separation net 202. The rotating plate 206 is rotatably connected to the top of the first support plate 204. The placing hole 207 is formed on the top sidewall of the second support plate 205. The first motor 208 is bolted on the sidewall of the rotating plate 206. The air expansion shaft 209 is coaxially arranged on the output end of the first motor 208. The cutter 210 is arranged on one side of the air expansion shaft 209. The first support plate 204 and the second support plate 205 are fixedly connected with the workbench 1. The input end of the air extractor 203 is in communication with the inside of the groove 201. The input end of the air extractor 203 is provided with a filter screen for preventing fine dust from entering the inside of the air extractor 203. In use, the rotating plate 206 is rotated to make one end of the air expansion shaft 209 disengage from the placing hole 207. The film roll to be trimmed is placed on the air expansion shaft 209. The film roll is fixed by the air expansion shaft 209. Then, the air expansion shaft 209 is reset. The first motor 208 and the air extractor 203 are started. The air expansion shaft 209 drives the film roll to rotate. The film roll is trimmed by cutting. Then, the dust is sucked into the groove 201 by the suction force generated by the air extractor 203. The film with large volume is adsorbed on the separation net 202.

[0031] As shown in Figure 1 and Figure 4 The adjusting assembly 211 comprises a mounting plate 21101, an electric push rod 21102 and a connecting rod 21103. The mounting plate 21101 is arranged on the side of the cutter 210 away from the air expansion shaft 209. The electric push rod 21102 is hingedly connected to the sidewall of the mounting plate 21101. One end of the connecting rod 21103 is hingedly connected to the output end of the electric push rod 21102. The other end of the connecting rod 21103 is fixedly connected with the cutter 210. The electric push rod 21102 is started to gradually move the connecting rod 21103 and the cutter 210 close to the film roll, so as to trim the film.

[0032] As shown in Figure 3 and Figure 4As shown, the position adjusting assembly 3 comprises a rectangular groove 301, a second motor 302, a screw rod 303 and a sliding block 304. The rectangular groove 301 is arranged on the side wall of the workbench 1. The second motor 302 is bolted to the side wall of the workbench 1. The screw rod 303 is coaxially arranged on the output end of the second motor 302. The sliding block 304 is threadedly connected to the outside of the screw rod 303. The side wall of the sliding block 304 is fixedly connected with the side wall of the mounting plate 21101. When the different positions of the film roller need to be cut, the second motor 302 is started, and the screw rod 303 rotates. The positions of the sliding block 304, the mounting plate 21101, the electric push rod 21102, the connecting rod 21103 and the cutter 210 will change, thereby cutting the different positions of the different film rollers.

[0033] As shown in Figure 6 As shown, a plurality of annular grooves 4 are arranged on the circumferential wall of the gas swelling shaft 209. The plurality of annular grooves 4 are uniformly distributed along the length direction of the gas swelling shaft 209. When the film is cut by the cutter 210, the annular grooves 4 can avoid the cutter 210 directly contacting the gas swelling shaft 209 to cause damage to the surface of the gas swelling shaft 209.

[0034] As shown in Figure 5 As shown, a convex groove 5 is arranged on the side wall of the workbench 1. A convex block 6 is fixedly connected to the top side wall of the mounting plate 21101. The convex block 6 is slidably connected with the convex groove 5. When the mounting plate 21101 moves, the convex block 6 will stably slide along the convex groove 5, thereby improving the stability of the mounting plate 21101 when moving.

[0035] As shown in Figure 6 As shown, the bearing 7 is fixedly connected to the end of the gas swelling shaft 209 away from the first motor 208. The outer wall of the bearing 7 is fixedly connected with an extension block 8. The top of the second support plate 205 is provided with a screw rod 9. The bottom of the screw rod 9 penetrates through the extension block 8 and extends into the inside of the second support plate 205. In use, the screw rod 9 is inserted into the top of the second support plate 205, and then the screw rod 9 is rotated to fix the extension block 8. Then the bottom end of the screw rod 9 is inserted into the inside of the second support plate 205, thereby fixing the bearing 7 and the end of the gas swelling shaft 209 away from the first motor 208, to avoid the movement of the gas swelling shaft 209 when the edge is cut.

[0036] As shown in Figure 3 As shown, the top of the workbench 1 is provided with a receiving groove 10. The bottom of the receiving groove 10 is semicircular. The plurality of film rollers to be cut can be placed in the receiving groove 10, which is convenient for taking.

[0037] Specifically, the polypropylene film trimming device in use: the first motor 208, the second motor 302, the electric push rod 21102, the air extractor 203 and the external power supply are connected, then the rotating plate 206 is rotated, the one end of the gas expansion shaft 209 is separated from the placing hole 207, the film roll to be trimmed is placed on the gas expansion shaft 209, the film roll is fixed through the gas expansion shaft 209, then the gas expansion shaft 209 is reset, then the screw rod 9 is inserted into the top of the second support plate 205, then the screw rod 9 is rotated to fix the extension block 8, then the bottom end of the screw rod 9 is inserted into the inside of the second support plate 205, thereby the bearing 7 and the one end of the gas expansion shaft 209 away from the first motor 208 are fixed, the first motor 208 and the air extractor 203 are started, the film roll is rotated by the gas expansion shaft 209, then the electric push rod 21102 is started, thereby the connecting rod 21103 and the cutter 210 gradually approach the film roll, so that the film is trimmed, if the different positions of the film roll are trimmed, the second motor 302 is started, at the same time the screw rod 303 is rotated, the positions of the sliding block 304, the mounting plate 21101, the electric push rod 21102, the connecting rod 21103 and the cutter 210 will change, thereby the different positions of the different film rolls are trimmed.

[0038] All the technical features in the embodiment can be freely combined according to actual needs.

[0039] The above embodiment is the preferred implementation scheme of the utility model, in addition, the utility model can be realized in other ways, under the premise of not departing from the technical scheme concept, any obvious replacement is within the protection scope of the utility model.

Claims

1. A polypropylene film trimming device comprising a worktable (1), characterized in that, The top of the workbench (1) is provided with a trimming mechanism (2), one side of the trimming mechanism (2) is provided with a position adjusting assembly (3); The trimming mechanism (2) comprises a groove (201), an isolation net (202), an air extractor (203), a first supporting plate (204), a second supporting plate (205), a rotating plate (206), a placing hole (207), a first motor (208), an air expansion shaft (209), a cutter (210) and an adjusting assembly (211), the groove (201) is formed in the top of the workbench (1), the isolation net (202) is hingedly connected to the side wall of the groove (201), the air extractor (203) is hingedly connected to the side wall of the workbench (1), the first supporting plate (204) and the second supporting plate (205) are arranged on the two sides of the isolation net (202) respectively, the rotating plate (206) is rotatably connected to the top of the first supporting plate (204), the placing hole (207) is formed in the top side wall of the second supporting plate (205), the first motor (208) is hingedly connected to the side wall of the rotating plate (206), the air expansion shaft (209) is coaxially arranged on the output end of the first motor (208), and the cutter (210) is arranged on one side of the air expansion shaft (209).

2. A polypropylene film trimming device according to claim 1, wherein The adjusting assembly (211) comprises a mounting plate (21101), an electric push rod (21102) and a connecting rod (21103), the mounting plate (21101) is arranged on the side, away from the air expansion shaft (209), of the cutter (210), the electric push rod (21102) is hingedly connected to the side wall of the mounting plate (21101), the connecting rod (21103) is hingedly connected to the output end of the electric push rod (21102), one end of the connecting rod (21103) is hingedly connected to the mounting plate (21101), and the other end of the connecting rod (21103) is fixedly connected to the cutter (210).

3. A polypropylene film trimming device according to claim 1, wherein The position adjusting assembly (3) comprises a rectangular groove (301), a second motor (302), a lead screw (303) and a sliding block (304), the rectangular groove (301) is formed in the side wall of the workbench (1), the second motor (302) is hingedly connected to the side wall of the workbench (1), the lead screw (303) is coaxially arranged on the output end of the second motor (302), and the sliding block (304) is threadedly connected to the outside of the lead screw (303); and the side wall of the sliding block (304) is fixedly connected to the side wall of the mounting plate (21101).

4. The polypropylene film trimming apparatus according to claim 1, wherein A plurality of annular grooves (4) are formed in the circumferential wall of the air expansion shaft (209) and are uniformly distributed along the length direction of the air expansion shaft (209).

5. The polypropylene film trimming apparatus according to claim 2, wherein A convex groove (5) is formed in the side wall of the workbench (1), a convex block (6) is fixedly connected to the top side wall of the mounting plate (21101), and the convex block (6) is slidably connected to the convex groove (5).

6. A polypropylene film trimming device according to claim 1, wherein The air inflation shaft (209) is fixedly connected with a bearing (7) at one end away from the first motor (208), an extension block (8) is fixedly connected to the outer wall of the bearing (7), a screw rod (9) is arranged on the top of the second supporting plate (205), the bottom of the screw rod (9) penetrates through the extension block (8) and extends to the inside of the second supporting plate (205).

7. The polypropylene film trimming apparatus according to claim 1, wherein The top of the workbench (1) is provided with a receiving groove (10), and the bottom of the receiving groove (10) is semicircular.

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