CN213290391U

CN213290391U - Plastic film cutting device

Info

Publication number: CN213290391U
Application number: CN202022276053.XU
Authority: CN
Inventors: 孙玉兵; 桑志强
Original assignee: Chongqing Siping Taixing Plastic Packing Co ltd
Current assignee: Chongqing Hechang Packaging Co.,Ltd.
Priority date: 2020-10-13
Filing date: 2020-10-13
Publication date: 2021-05-28
Anticipated expiration: 2030-10-13

Abstract

The utility model provides a plastic film cutting device relates to plastic film production auxiliary device's technical field, and it includes the mounting bracket, the mounting bracket includes two parallel arrangement's bracing piece, including fixing the connecting rod at two bracing piece middle parts, the connecting rod is stock form component, slides along the width direction of plastic film on the connecting rod and installs the cutting assembly who is used for cutting the plastic film. This scheme utilizes the cutting assembly who moves along plastic film width direction for the resistance that receives when cutting the plastic film is littleer, has the effect that the process that makes the cutting plastic film is easier.

Description

Plastic film cutting device

Technical Field

The utility model relates to a plastic film production auxiliary device's technical field especially relates to a plastic film cutting device.

Background

Plastic films are frequently used in daily life, and deformed products of the plastic films, such as plastic bags, packaging films and other articles, are widely applied to industries of clothing, medicine, food, chemical industry, machinery and the like.

According to the chinese utility model patent that the publication number is CN209440930U, it discloses a plastic film cutting device, include guide roll subassembly, conveying roll subassembly and the cutting assembly that sets gradually along the direction of transmission of plastic film, cutting assembly is including erectting bottom sprag seat in the frame, installing backing plate and orientation or keeping away from on the bottom sprag seat the sword subassembly is moved to the backing plate motion.

The prior related art has the following technical defects: when the cutting device adopting the scheme is used for cutting the plastic film, the resistance of the cutting knife is large, and the plastic film is not easy to cut off.

SUMMERY OF THE UTILITY MODEL

To the not enough that exists among the prior art, this scheme provides a plastic film cutting device, and its cutting resistance is little for have the effect of cutting off more easily when cutting the plastic film.

According to the embodiment of the utility model, the plastic film cutting device comprises a mounting rack, wherein the mounting rack comprises two support rods which are arranged in parallel, the support rods comprise connecting rods which are fixed in the middle parts of the two support rods, the connecting rods are long rod-shaped members, and a cutting assembly for cutting the plastic film is arranged on the connecting rods in a sliding manner along the width direction of the plastic film; the cutting assembly comprises a rack fixed along the length direction of the connecting rod, a cutter rest sliding along the length direction of the rack is installed on the rack, the cutter rest is a component in a cuboid shape, a sunk groove is formed in the cutter rest, the rack is connected with the rack in the sunk groove, a gear meshed with the rack is installed in the sunk groove of the cutter rest, a driving gear rotating driving motor is installed on the cutter rest, a cutting knife used for cutting a plastic film is fixedly arranged on one side, close to the mounting frame, of the cutter rest, and the length direction of the cutting knife is parallel to the length direction of the supporting rod.

Through above technical scheme, when using the device to cut the plastic film, the manual work is dragged and is tightened the plastic film, and cutting assembly moves to the opposite side along the width direction of plastic film, compares traditional thickness direction cutting along the plastic film, and the resistance that this device's cutting assembly received is littleer for the process of cutting the plastic film is easier. The driving motor can provide power for the movement of the cutting knife, so that the intervention of external manpower is reduced, and the safety of the production process is improved; utilize the structure of knife rest joint on the rack for the cutting knife can remove along fixed direction, makes the incision of plastic film more neat, improves product quality.

Preferably, the notches of the sinking grooves are oppositely fixed with clamping blocks; the both sides of rack are seted up along self length direction with the draw-in groove of card caking adaptation.

Through above technical scheme, the cooperation of card caking and draw-in groove can reduce the knife rest along the length direction motion's of bracing piece possibility, has reduced the possibility that cutting knife and knife rest break away from the rack simultaneously.

Preferably, the two ends of the rack are provided with baffles for limiting the sliding stroke of the cutting knife.

Through the technical scheme, the baffle is used for limiting the stroke of the tool rest, so that the possibility of exceeding the stroke when the tool rest moves along the length direction of the rack is reduced, and the reliability of the device is higher; meanwhile, the possibility of production accidents caused by the falling of the knife rest is reduced.

Preferably, the mounting frame is provided with a pressing assembly for pressing the plastic film, the pressing assembly comprises a mounting piece fixed between the tops of the two support rods, a pressing piece sliding along the length direction of the support rods is mounted on the mounting piece, a linear driving piece driving the pressing piece to slide is mounted between the mounting piece and the pressing piece, a fixing piece is arranged on one side of the pressing piece away from the mounting piece, and the fixing piece is mounted between the two support rods; the cutting edge of the cutting knife is higher than the fixing piece.

Through above technical scheme, utilize the linear drive spare of installing on the mounting to order about to compress tightly the piece and be close to the mounting, compress tightly the plastic film between the two, can reduce the plastic film at the in-process of cutting the plastic film and appear the possibility of fold or slip for the incision of cutting is more neat.

Preferably, the opposite sides of the pressing piece and the fixing piece are respectively fixed with a protective layer.

Through above technical scheme, the protective layer can reduce the possibility that plastic film is pressed down piece or mounting fish tail.

Preferably, two opposite sides of the two support rods are provided with sliding grooves along the length direction of the support rods; a limiting block which is matched with the sliding groove is fixed on the pressing piece.

Through above technical scheme, utilize the structure of spout and stopper for compress tightly the piece and can only follow the length direction motion of spout, reduce and compress tightly the piece and appear breaking away from the possibility of bracing piece at the in-process that slides.

Compared with the prior art, the utility model discloses one of following beneficial effect has at least:

1. the cutting assembly moving along the width direction of the plastic film is utilized, so that the resistance applied when the plastic film is cut is smaller, and the process of cutting off the plastic film is easier;

2. utilize the compressing assembly to compress tightly it when cutting the plastic film, the possibility that the fold appears or slide in the in-process of cutting for the incision of cutting is more neat.

Drawings

FIG. 1 is a schematic overall structure of the present application;

FIG. 2 is an exploded view of the present application;

fig. 3 is an enlarged view of a portion a in fig. 2.

In the above drawings: 1. a mounting frame; 11. a support bar; 111. a chute; 12. a connecting rod; 2. a cutting assembly; 21. a rack; 211. a card slot; 22. a tool holder; 221. blocking; 23. a gear; 24. a drive motor; 25. a cutting knife; 26. a baffle plate; 3. a compression assembly; 31. a mounting member; 32. a compression member; 321. a limiting block; 33. a linear drive; 34. a fixing member; 35. and a protective layer.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings and embodiments.

The utility model provides a plastic film cutting device, refers to fig. 1, includes that mounting bracket 1 and lateral sliding install the cutting subassembly 2 on mounting bracket 1 for the device have along the function of plastic film width direction cutting, compare in the device that cuts along plastic film thickness direction, reduced the area of contact of cutting edge with the plastic film, especially the effect is more obvious when the plastic film that the cutting is thick, and this scheme has the effect that reduces the cutting resistance and make the plastic film cut off more easily.

Referring to fig. 2 and 3, the mounting bracket 1 includes two support rods 11 arranged in parallel, and two opposite side surfaces of the two support rods 11 are respectively provided with a sliding groove 111 along a length direction of the support rods 11, and the support rods 11 may be made of channel steel or i-steel, so as to facilitate processing of the device.

A connecting rod 12 is fixed between the two support rods 11, the connecting rod 12 is fixed on the side surface of the support rod 11, and the length direction of the connecting rod 12 is perpendicular to the length direction of the support rod 11. The connecting rod 12 can be made of square steel, and the connecting rod 12 and the supporting rod 11 can be fixed by welding or bolts.

Referring to fig. 3, the cutting assembly 2 is mounted on one side of the connecting rod 12 facing the top of the mounting frame 1, and the cutting assembly 2 comprises a rack 21, a cutter frame 22 slidably mounted on the rack 21, and a cutting knife 25 fixed on the cutter frame 22; the rack 21 is arranged along the length direction of the connecting rod 12, the tooth surface of the rack 21 faces the top of the mounting frame 1, the rack 21 can be purchased from the market, and the rack 21 and the connecting rod 12 can be fixed through bolts or welding.

The tool rest 22 is a cuboid component, a sinking groove is formed in one side face of the tool rest 22, the tool rest 22 is clamped on one side, facing the top of the mounting rack 1, of the rack 21, and in order to reduce the possibility that the tool rest 22 is separated from the rack 21 when sliding, two parallel clamping grooves 211 are formed in the two side faces of the rack 21 along the length direction of the rack 21; the opening of the sinking groove of the tool holder 22 is oppositely fixed with a clamping block 221 adapted to the clamping groove 211, and the clamping block 221 can be integrally formed, welded and fixed or fixed on the opening of the clamping groove 211 by bolts.

A gear 23 engaged with the rack 21 is rotatably mounted in the sunk groove of the tool holder 22, a driving motor 24 is mounted on the tool holder 22, an output shaft of the driving motor 24 is connected with the gear 23, and the driving motor 24 can adopt a stepping motor or a servo motor purchased from the market, so that the tool holder 22 can perform accurate displacement.

The cutting knife 25 is fixed in the one side that the knife rest 22 is close to the mounting bracket 1, and two cutting edges have been seted up to the cutting knife 25 for every the sliding alright that carries out a direction of cutting knife 25 alright carry out one side cutting, compare the cutter that opens the edge in unilateral and can reduce cutting knife 25 reciprocating motion's energy loss.

The baffle plates 26 are fixed at the two ends of the rack 21, the baffle plates 26 can be made of rectangular steel plates, and the baffle plates 26 can be fixed on the side surfaces of the support rods 11 by welding or bolts; the stop 26 reduces the possibility of the tool holder 22 falling off the rack 21 beyond the stroke when it is slid.

Referring to fig. 1 and 2, a pressing assembly 3 is mounted on the top of the mounting frame 1, and the pressing assembly 3 comprises a mounting member 31 fixed on the top of the mounting frame 1, a pressing member 32 arranged in the middle of the mounting frame 1, and a fixing member 34; the mounting member 31 is an elongated member, the mounting member 31 may be made of square steel or i-steel, and the mounting member 31 may be fixed by welding or bolts to the top ends of the two support rods 11.

A linear driving member 33 is installed on one side of the installation member 31 facing the bottom of the installation member 31, and the linear driving member 33 can adopt an air cylinder or an oil cylinder, etc., and two air cylinders are adopted; the pressing piece 32 is fixed at one end of the linear driving piece 33 facing the bottom of the mounting rack 1, and the pressing piece 32 is a rectangular plate in a long strip shape; the two ends of the pressing piece 32 are fixed with the limiting blocks 321 matched with the sliding grooves 111, the limiting blocks 321 can be fixed on the pressing piece 32 in a welding fixing or bolt fixing mode, and the limiting blocks 321 and the pressing piece 32 can also be manufactured in an integrated forming mode.

The fixing member 34 is an elongated rectangular plate, the fixing member 34 can be made of a steel plate, the fixing member 34 can be fixed between the two support rods 11 by welding or bolts, and the fixing member 34 is located in the middle of the cutting edge of the cutting knife 25.

The pressing assembly 3 can reduce the possibility of wrinkles appearing on the plastic film when the plastic film is cut, so that the cut is more tidy, and the product quality and the utilization rate of raw materials are improved.

A protective layer 35 is fixed on the opposite side of the pressing member 32 and the fixing member 34, the protective layer 35 can be made of elastic rubber, and the protective layer 35 can reduce the possibility of scratching of the plastic film by the pressing member 32 or the fixing member 34.

The bottom of the supporting rod 11 is fixed with a mounting plate which can be made of steel plates, the mounting plate and the supporting rod 11 are fixed by welding, and the mounting plate is provided with a through hole for facilitating the use of a bolt to fix the device on the ground or related equipment.

The application discloses plastic film cutting device's implementation principle does: the plastic film penetrates through a gap between the pressing piece 32 and the fixing piece 34, and after the plastic film is taken out for a required length, the linear driving piece 33 is started, so that the pressing piece 32 moves towards the fixing piece 34 to press the plastic film; the driving motor 24 of the cutting assembly 2 is started, so that the cutting knife 25 moves along the length direction of the rack 21 along with the knife rest 22, and simultaneously, the plastic film is cut. The cutting blade 25 is less resistant by the cutting assembly 2 sliding in the width direction of the plastic film, so that the process of cutting the plastic film is easier.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. The utility model provides a plastic film cutting device, includes mounting bracket (1), mounting bracket (1) includes two parallel arrangement's bracing piece (11), its characterized in that: the plastic film cutting device comprises connecting rods (12) fixed in the middle of two supporting rods (11), wherein the connecting rods (12) are long rod-shaped members, and cutting assemblies (2) for cutting plastic films are slidably arranged on the connecting rods (12) along the width direction of the plastic films; cutting assembly (2) are including following fixed rack (21) of connecting rod (12) length direction, install knife rest (22) that slides along its length direction on rack (21), knife rest (22) are the component of a cuboid form, be provided with a heavy groove on knife rest (22), rack (21) joint is in heavy inslot, install gear (23) with rack (21) meshing in the heavy inslot of knife rest (22), install drive gear (23) pivoted driving motor (24) on knife rest (22), one side that is close to mounting bracket (1) in knife rest (22) is fixed with cutting knife (25) that are used for cutting the plastic film, the length direction of cutting knife (25) is parallel with the length direction of bracing piece (11).

2. The plastic film cutting apparatus as claimed in claim 1, wherein: clamping blocks (221) are oppositely fixed at the notch of the tool rest (22) sinking groove; clamping grooves (211) matched with the clamping blocks (221) are formed in the two sides of the rack (21) along the length direction of the rack.

3. The plastic film cutting apparatus as claimed in claim 2, wherein: and two ends of the rack (21) are provided with baffle plates (26) for limiting the sliding stroke of the cutting knife (25).

4. The plastic film cutting apparatus as claimed in claim 1, wherein: the plastic film pressing device is characterized in that a pressing component (3) used for pressing a plastic film is mounted on the mounting rack (1), the pressing component (3) comprises a mounting piece (31) fixed between the tops of the two supporting rods (11), a pressing piece (32) sliding along the length direction of the supporting rods (11) is mounted on the mounting piece (31), a linear driving piece (33) driving the pressing piece (32) to slide is mounted between the mounting piece (31) and the pressing piece (32), a fixing piece (34) is arranged on one side, far away from the mounting piece (31), of the pressing piece (32), and the fixing piece (34) is mounted between the two supporting rods (11); the cutting edge of the cutting knife (25) is higher than the fixing piece (34).

5. The plastic film cutting apparatus as claimed in claim 4, wherein: and a protective layer (35) is respectively fixed on one side of the pressing piece (32) opposite to one side of the fixing piece (34).

6. The plastic film cutting apparatus as claimed in claim 4, wherein: two opposite sides of the two support rods (11) are provided with sliding grooves (111) along the length direction of the support rods; a limit block (321) which is matched with the sliding groove (111) is fixed on the pressing piece (32).