CN212859539U

CN212859539U - Film slitting device

Info

Publication number: CN212859539U
Application number: CN202021407447.8U
Authority: CN
Inventors: 邹师亮; 沈镇坤; 杜宏培; 李宗翰
Original assignee: Octoplas Technologies Co ltd
Current assignee: Octoplas Technologies Co ltd
Priority date: 2020-07-15
Filing date: 2020-07-15
Publication date: 2021-04-02
Anticipated expiration: 2030-07-15

Abstract

The utility model discloses a film slitting device, which comprises a frame, a slide bar, a slitting device and a clamping roller device, wherein the slide bar is fixedly arranged in the middle of the frame, the slitting device comprises film slitting knives which are arranged in bilateral symmetry, the film slitting knives comprise knife holders and a plurality of sliding wheels, the sliding wheels are respectively and rotatably arranged on the knife holders, the knife holders are arranged on the slide bar through the sliding wheels in a sliding way, the knife holders are all connected with balancing weights, the knife holders move relatively under the action of the gravity of the balancing weights, the clamping roller device comprises fixed clamping rollers, movable clamping rollers and a pressing driving device, the fixed clamping rollers and the movable clamping rollers are arranged at the lower side of the slide bar in parallel, the pressing driving device drives the movable clamping rollers to be close to and far away from the fixed clamping rollers, the utility model can adjust the distance between the knife holders according to films with different widths, the cutter holder has better cutting effect on the film.

Description

Film slitting device

Technical Field

The utility model relates to an equipment field is cut to the film, especially relates to a device of cutting of film.

Background

The film blowing machine heats and melts plastic particles and blows the plastic particles into a cylindrical film, and the cylindrical film is cut into flaky films by a cutting device on the film blowing machine, and then the films are wound to complete the processing of the films.

At present, a film blowing machine generally directly winds a cylindrical film during winding, so that the cylindrical film is frequently cut into single films firstly and then cut into single finished films. If the cylindrical film can not be cut without a cutting device in the winding process, only double-layer winding can be performed during winding, and the biggest defect of double-layer winding is that the film can not be exhausted, so that the phenomena of winding flanging, wrinkling and the like are caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a device of cutting of film cuts, the rolling through adjusting the blade holder to the film, avoids causing phenomenons such as rolling turn-ups, pincher trees.

In order to realize the above technical scheme, the embodiment of the utility model provides a device of cutting of film, include:

a frame;

the sliding rod is fixedly arranged in the middle of the rack;

the film cutting knife comprises a knife holder and a plurality of sliding wheels, the sliding wheels are respectively and rotatably arranged on the knife holder, the knife holder is slidably arranged on the sliding rods through the sliding wheels, the knife holders are all connected with balancing weights, and the knife holders relatively move under the action of the gravity of the balancing weights;

the clamping roller device comprises a fixed clamping roller, a movable clamping roller and a pressing driving device, the fixed clamping roller and the movable clamping roller are arranged on the lower side of the sliding rod in parallel, and the pressing driving device drives the movable clamping roller to be close to or far away from the fixed clamping roller.

Preferably, the two sides of the rack are both provided with a first guide wheel and a second guide wheel in an up-and-down fixed mode, the tail end of the cutter holder is provided with a pull rope in a fixed mode, and the pull rope sequentially winds through the second guide wheel and the first guide wheel and is connected with the balancing weight.

Preferably, the tool apron comprises a support part and a guide part, the support part is vertically arranged at one end of the guide part, and an L-shaped structure is formed between the support part and the guide part.

Preferably, a blade is obliquely arranged between the left side of the lower part of the supporting part and the top of the guide part.

Preferably, the outer contour of the support part is in circular arc transition.

Preferably, the inner two sides of the rack are respectively provided with a sliding groove, the end parts of the movable clamping rollers are respectively provided with a sliding block in a rotating mode, the sliding blocks are arranged in the sliding grooves in a sliding mode, and the sliding blocks are driven by the pressing driving device to drive the movable clamping rollers to move.

Preferably, the device further comprises a clamping roller driving device, wherein the clamping roller driving device is in transmission connection with the fixed clamping roller, and the fixed clamping roller is driven to rotate by the clamping roller driving device.

Preferably, a protective plate is fixedly arranged above the roller clamping device, and a through groove for the thin film to pass through is formed in the middle of the protective plate.

Preferably, still include first deflector roll, second deflector roll, third deflector roll, first, second deflector roll set up respectively from top to bottom in the top of slide bar, the third deflector roll set up in the below of fixed nip roller.

Implement the embodiment of the utility model provides a, following beneficial effect has:

the utility model discloses a width between the blade holder is adjusted to the cylindric film according to different broad widths, guarantees that the blade holder supports and leans on the inboard at the cylindric film, and is taut with the cylindric film under opposite effect between the blade holder, improves the shearing force of blade holder, makes the cutting effect to the film better. The sliding wheels on the tool apron are arranged in a triangular mode, so that the tool apron is connected with the sliding rod more firmly and is not easy to shake. The two cut films are clamped and conveyed through the roller clamping and rotating device, so that the two films are tightly attached and kept orderly, the tension force of the films is improved, and the films are prevented from being torn in the cutting process.

Drawings

Fig. 1 is a schematic overall structural diagram I of the present invention;

FIG. 2 is a schematic view showing a structure of a portion A in FIG. 1;

FIG. 3 is a top view of the overall structure of the slitting device;

fig. 4 is the overall structure diagram II of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to fig. 1-3.

Referring to fig. 1, the film slitting device includes a frame 1, a slide bar 2, a slitting device 3, a nip roller device 4, a nip roller driving device 5, a first guide roller 6, a second guide roller 7, and a third guide roller 8.

Referring to fig. 1-3, a sliding rod 2 is fixedly disposed in the middle of a frame 1, a slitting device 3 includes film cutting knives symmetrically disposed left and right, each film cutting knife includes a knife holder 311 and a plurality of sliding wheels 312, the knife holder 311 includes a support portion 311A and a guide portion 311B, the longer end is the support portion 311A, the shorter end is the guide portion 311B, the support portion 311A is vertically disposed at one end of the guide portion 311B, so that an L-shaped structure is formed between the support portion 311A and the guide portion 311B, the number of the sliding wheels 312 in this embodiment is preferably three, two of the sliding wheels 312 are respectively rotatably disposed at the lower end of the guide portion 311B, the other sliding wheel is rotatably disposed at the upper end of the guide portion 311B, the upper sliding wheel 312 is slidably disposed at the upper edge of the sliding rod 2, the lower two sliding wheels 312 are slidably disposed at the lower edge of the sliding rod 2, so, the three sliding wheels 312 are arranged in a triangular arrangement, so that the tool apron is connected with the sliding rod more firmly and is not easy to shake.

A blade 311C is obliquely arranged between the left side of the lower part of the supporting part 311A and the top of the head end of the guide part 311B, a cylindrical film is conveyed downwards along the supporting part 311A and passes through the blade on the guide part 31B, the cylindrical film is cut into two films by the blade, a gap for the films to pass through is formed between the tool holder 311 and the sliding rod 2, the two cut films are conveyed downwards along the two sides of the guide part 311A, and the outer contours of the supporting part 311A are in arc transition, so that the films are prevented from being scratched by the supporting part in the conveying process.

The blade holder 311 is provided with the configuration piece 313 in all connecting, the both sides of frame 1 are all fixed from top to bottom and are provided with first leading wheel 11 and second leading wheel 12, the end of blade holder 313 is fixed and is provided with stay cord 314, through stay cord 314 around second leading wheel 12 and first leading wheel 11 and balancing weight 313 fixed connection in proper order, stay cord 314 is around first under the effect of balancing weight 313, second leading

wheel

11, 12 slide thereby drag blade holder 311 and move along slide bar 2, opposite movement under the action of gravity of balancing weight 313 between the blade holder 311, make the supporting part 311A of blade holder 311 inconsistent with the inner wall of cylindric film, take up the cylindric film under the opposite effect of blade holder 311, make the blade carry out better cutting to the film. The utility model discloses the weight of balancing weight is adjusted according to the film of different thickness, makes the cutting knife have better cutting power to the film of different thickness.

Referring to fig. 1 and 3, the nip roller device 4 includes a fixed nip roller 41, a movable nip roller 42, and a pressing driving device 43, the fixed nip roller 41 and the movable nip roller 42 are arranged in parallel at the lower side of the slide bar 2, the end of the fixed nip roller 41 is rotatably connected with the inner side of the frame 1, the nip roller driving device 5 preferably employs a driving motor, the output shaft of the nip roller driving device 5 is in transmission connection with the fixed nip roller 41 through a belt, the fixed nip roller 41 is driven to rotate by the nip roller driving device 5, sliding grooves 13 are respectively arranged at the inner two sides of the frame 1, the end of the movable nip roller 42 is respectively rotatably provided with a slider 421, the slider 421 is slidably arranged in the sliding groove 13, the pressing driving device 43 preferably employs an air cylinder, the telescopic rod of the pressing driving device 43 is fixedly connected with the slider, the slider 421 is driven to move along the sliding grooves 13 by the pressing driving device 43, so that the slider, And (4) being far away.

Referring to fig. 4, a protection plate 44 is fixedly arranged above the roller clamping device 4, and a through groove 441 for the film to pass through is formed in the middle of the protection plate 44, so that leftover materials generated in the film cutting process are prevented from falling onto the roller clamping device 4, and the cleaning difficulty is reduced.

Referring to fig. 1 and 4, the first and

second guide rollers

6 and 7 are respectively disposed above the sliding rod 2, the ends of the first and

second guide rollers

6 and 7 are respectively fixedly connected to the inner side of the frame 1, the third guide roller 8 is disposed below the fixed nip roller 41, and the end of the third guide roller 8 is respectively fixedly connected to the inner side of the frame 1.

Referring to fig. 1 and 2, the working process of the present invention is that the tubular film blown out by the film blowing machine sequentially passes through the first and

second guide rollers

6 and 7, after the tubular film is leveled by the first and

second guide rollers

6 and 7, the tubular film is conveyed downwards towards the tool apron 311, the tool apron 311 enters the tubular film, the two tool aprons 311 on the slide bar 2 move in opposite directions under the action of the gravity of the counterweight 313, the supporting parts 311A of the tool aprons 311 are respectively attached to the inner wall of the tubular film, thereby tensioning the tubular film, the two sides of the tubular film conveyed downwards are cut by the blade on the tool apron 311, the tubular film is cut into two films, the cut films respectively pass between the fixed nip roller 41 and the movable nip roller 42, the movable nip roller 42 is driven by the pressing driving device 43 to move close to clamp the two single-layer films, the two films are tightly attached and kept orderly, the tensile force of the films is improved, and the films are prevented from being torn in the cutting process. The fixed clamping roller 41 is driven to rotate by the clamping roller driving device 5, the movable clamping roller 42 rotates along with the movement of the film, so that the film is more stably conveyed, then two single-layer films are conveyed downwards and wound by the third guide roller 8, and finally the two single-layer films are respectively wound by the winding machine, so that the slitting of the cylindrical film is realized, and the phenomena of winding, flanging, creasing and the like are avoided.

The above-mentioned embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, which should not be construed as limiting the scope of the present invention. All modifications made according to the spirit of the main technical scheme of the present invention shall be covered within the protection scope of the present invention.

Claims

1. A device for slitting thin films, comprising:

a frame;

the sliding rod is fixedly arranged in the middle of the rack;

2. A film slitting device as claimed in claim 1, wherein both sides of the frame are vertically and fixedly provided with a first guide wheel and a second guide wheel, the tail end of the cutter holder is fixedly provided with a pull rope, and the pull rope sequentially passes around the second guide wheel and the first guide wheel to be connected with the balancing weight.

3. A film slitting device according to claim 2, wherein the cutter holder includes a support portion and a guide portion, the support portion is vertically disposed on the guide portion, and an L-shaped structure is formed between the support portion and the guide portion.

4. A device for slitting films according to claim 3, wherein a blade is obliquely arranged between the lower left side of the supporting portion and the top of the guide portion.

5. A film slitting device according to claim 4 wherein the outer profile of the support portion is a circular arc transition.

6. A film slitting device as claimed in claim 1, wherein the machine frame has slide grooves on both sides, the movable nip rollers have slide blocks on their ends, the slide blocks are slidably disposed in the slide grooves, and the pressing drive device drives the slide blocks to move the movable nip rollers.

7. A film slitting device as claimed in claim 6, further comprising a nip roller driving device, wherein the nip roller driving device is in driving connection with the fixed nip roller, and the fixed nip roller is driven to rotate by the nip roller driving device.

8. A film slitting device as claimed in claim 7, wherein a protective plate is fixedly disposed above the nip roller device, and a through slot for the film to pass through is formed in the middle of the protective plate.

9. The apparatus of claim 1, further comprising a first guide roller, a second guide roller, and a third guide roller, wherein the first and second guide rollers are respectively disposed above the sliding bar, and the third guide roller is disposed below the fixed nip roller.