CN218144931U

CN218144931U - Online film slitting device

Info

Publication number: CN218144931U
Application number: CN202222455525.7U
Authority: CN
Inventors: 蔡卫东; 郭俊波; 蔡宇
Original assignee: Yichang Forward High Tech Co ltd
Current assignee: Yichang Forward High Tech Co ltd
Priority date: 2022-09-16
Filing date: 2022-09-16
Publication date: 2022-12-27
Anticipated expiration: 2032-09-16

Abstract

A film online cutting device comprises machine frames on two sides, wherein a supporting track is arranged between the machine frames on the two sides, two symmetrical cutting devices are mounted on the supporting track and can slide left and right along the supporting track, one side of each cutting device close to the machine frame is connected with one end of a pull wire, the pull wire penetrates out of the machine frame and is connected with one end of a spring after passing through a guide wheel, and the other end of the spring is fixedly connected with the machine frame; the slitting device comprises a clamping and conveying part matched with the supporting track in a directional moving mode and a supporting part arranged on the clamping and conveying part, and a slitting knife used for cutting the film is arranged on the supporting part. The film online cutting device is arranged between a traction device and a winding device of the plastic film blow molding machine, and when the winding device winds, the annular flat film can be cut into film sheets online.

Description

Online film slitting device

Technical Field

The utility model relates to a film production technical field especially relates to a device is cut on line to film.

Background

In actual production, the annular flat film needs to be cut into sheet films according to product requirements, so a cutting device needs to be arranged between a traction device and a winding device of the plastic film blowing machine, and the annular flat film needs to be cut into film sheets.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: the film online cutting device is arranged between a traction device and a winding device of a plastic film blow molding machine, so that when the winding device winds, the annular flat film can be cut into film sheets online.

In order to realize the technical characteristics, the purpose of the utility model is realized as follows: the film online cutting device comprises machine frames on two sides, wherein a supporting track is arranged between the machine frames on the two sides, two symmetrical cutting devices are mounted on the supporting track and can slide left and right along the supporting track, one side of the cutting device close to the machine frame is connected with one end of a pull wire, the pull wire penetrates out of the machine frame and is connected with one end of a spring after passing through a guide wheel, and the other end of the spring is fixedly connected with the machine frame; the slitting device comprises a clamping and conveying part matched with the supporting track in a directional moving mode and a supporting part arranged on the clamping and conveying part, and a slitting knife used for cutting the film is arranged on the supporting part.

The supporting rails comprise rectangular first rails arranged diagonally from top to bottom and second rails horizontally arranged on the upper side faces, the clamping and conveying parts of the cutting device vertically clamp the first rails, and the supporting parts of the cutting device are supported on the second rails.

The clamping and conveying part comprises a support plate, two first clamping wheels are arranged on the upper portion of one side of the support plate, a second clamping wheel is arranged on the lower portion of one side of the support plate, the first clamping wheels and the second clamping wheels are connected with the support plate through first connecting shafts respectively, annular V-shaped grooves are formed in the outer circumferences of the first clamping wheels and the second clamping wheels, and the first clamping wheels and the second clamping wheels clamp a first rail up and down through the V-shaped grooves.

The supporting part comprises a groove-shaped body, one side of the groove-shaped body is connected with the supporting plate of the clamping and conveying part, the other side of the groove-shaped body is provided with a supporting wheel, the supporting wheel is connected with the groove-shaped body through a second connecting shaft, a second rail supports the supporting wheel, and the slitting knife is installed in the middle of the groove-shaped body.

The two side walls of the middle part of the grooved body are respectively provided with a limiting column, the slitting knife is positioned between the limiting columns on the two sides, the bolt penetrates through the limiting column on one side after penetrating through the side wall on one side of the grooved body, penetrates through the slitting knife, penetrates out of the side wall on the other side of the grooved body after penetrating through the limiting column on the other side, and is then connected with the nut to fix the slitting knife.

The branch cutter includes the blade holder, and blade holder one end is equipped with the guide part perpendicularly, and the interior angle of blade holder and guide part junction is equipped with the mounting groove, and the blade is installed in the mounting groove of slope outwards, be equipped with the fixed orifices of being connected with the channel type body cooperation of supporting part on the blade holder, the one end that the guide part was kept away from to the blade holder is equipped with the traction hole, and it is connected with the branch cutter through the traction hole to act as go-between.

The other end of the spring is connected with a piston rod of the cylinder, and the bottom of the cylinder is connected with an ear plate extending out of the rack.

The utility model discloses there is following beneficial effect:

1. the film on-line cutting device is arranged on a rack between a traction device and a winding device of a plastic film blow molding machine, the cutting device tensions a film through a spring and a cylinder, when the film is pulled downwards, a blade on the cutting device cuts the annular film into two layers of flaky films, and when the winding device winds, the annular flat film can be simultaneously cut into film sheets on line.

2. The first track of centre gripping about the clamp send portion of cutting the device makes and cuts the device spacing to the messenger cuts the device and can removes about first track along, prevents to cut the device and in the production process fore-and-aft swing influence cut the film, for further eliminating the clearance of cutting the device fore-and-aft swing, the supporting part of cutting the device supports on the second track, thereby makes and cuts the device more stable.

3. The position of the dividing cutter can be adjusted through the limiting column, so that the dividing cutter is just positioned on the production path of the film, and the film can be smoothly and smoothly cut by the dividing cutter.

4. The other end of the spring is connected with a piston rod of the cylinder, so that the slitting device can be suitable for wider film width sizes. When the piston rod of the cylinder extends out, the cutting device is conveniently placed in the flat annular film, and the piston rod of the cylinder is retracted, so that the cutting devices on the two sides tension the film.

Drawings

Fig. 1 is a schematic view of the structure of the present invention.

Fig. 2 is a schematic view of the three-dimensional structure of the present invention.

FIG. 3 isbase:Sub>A schematic sectional view of A-A in FIG. 1.

Fig. 4 is the structural schematic diagram of the cutting device of the utility model.

Fig. 5 is a schematic view of the structure of the cutting knife of the present invention.

In the figure: frame 1, otic placode 11, support track 2, first track 21, second track 22, cut device 3, extension board 31, first connecting axle 32, first clamp wheel 331, second clamp wheel 332, grooved body 34, supporting wheel 35, second connecting axle 351, spacing post 36, divide the cutter 37, blade holder 371, fixed orifices 372, traction hole 373, guide 374, mounting groove 375, blade 376, leading wheel 4, acting as go-between 5, spring 6, cylinder 7.

Detailed Description

The following describes embodiments of the present invention with reference to the accompanying drawings.

Referring to fig. 1-5, the film online cutting device comprises machine frames 1 on two sides, a supporting track 2 is arranged between the machine frames 1 on the two sides, two symmetrical cutting devices 3 are mounted on the supporting track 2, the cutting devices 3 can slide left and right along the supporting track 2, one side of each cutting device 3 close to the machine frame 1 is connected with one end of a stay wire 5, the stay wire 5 penetrates out of the machine frame 1 and is connected with one end of a spring 6 after passing through a guide wheel 4, and the other end of the spring 6 is fixedly connected with the machine frame 1; the cutting device 3 comprises a clamping and conveying part matched with the supporting track 2 in a directional moving manner and a supporting part arranged on the clamping and conveying part, and a cutting knife 37 for cutting the film is arranged on the supporting part. The film online cutting device is arranged on a rack between a traction device and a winding device of the plastic film blow molding machine, and when the winding device winds, the annular flat film can be cut into film sheets online.

When the device is used, the flat film drawn out from the traction device is sleeved on the cutting devices 3 on the two sides, the cutting devices 3 are tensioned through the springs 6, the film is tensioned from the inside of the flat film and pulled downwards, the annular film is cut into two layers of flaky films through the cutting devices 3, and then the flaky films are wound through the winding device. During the production process, the annular flat film can be cut into film sheets on line.

Referring to fig. 2, the supporting rail 2 includes a rectangular first rail 21 diagonally disposed from top to bottom and a second rail 22 horizontally disposed from the top side, the first rail 21 is held by the pinch portion of the slitting device 3 from top to bottom, and the supporting portion of the slitting device 3 is supported on the second rail 22. The first rail 21 and the second rail 22 may be made of bar materials or pipes. The first track 21 of centre gripping from top to bottom of pinching portion through cutting device 3 makes and cuts device 3 spacing to make and cut device 3 and remove about can following first track 21, prevent to cut device 3 and remove about production process swing back and forth influence and cut the film, for further eliminating the clearance of cutting device 3 swing back and forth, the supporting part of cutting device 3 supports on second track 22, thereby makes and cuts device 3 more stable.

Specifically, referring to fig. 3 and 4, the pinch portion includes a support plate 31, two first pinch rollers 331 are disposed on an upper portion of one side of the support plate 31, one second pinch roller 332 is disposed on a lower portion of the one side of the support plate 31, the first pinch rollers 331 and the second pinch rollers 332 are respectively connected to the support plate 31 through first connecting shafts 32, annular V-shaped grooves are disposed on outer circumferences of the first pinch rollers 331 and the second pinch rollers 332, and the first rail 21 is vertically clamped by the first pinch rollers 331 and the second pinch rollers 332 through the V-shaped grooves. The first rail 21 is clamped up and down by the first clamping wheel 331 and the second clamping wheel 332 with the V-shaped grooves, so that the slitting device 3 is effectively prevented from swinging back and forth. Specifically, bearings are provided in the centers of the first pinch roller 331 and the second pinch roller 332, and the first pinch roller 331 and the second pinch roller 332 rotate around the first connecting shaft 32 through the bearings.

Specifically, referring to fig. 3 and 4, the supporting portion includes a groove-shaped body 34, one side of the groove-shaped body 34 is connected with the support plate 31 of the pinch portion, the other side of the groove-shaped body is provided with a supporting wheel 35, the supporting wheel 35 is connected with the groove-shaped body 34 through a second connecting shaft 351, the second rail 22 supports the supporting wheel 35, and the slitting knife 37 is installed in the middle of the groove-shaped body 34. The cutting blade 37 is clamped by the groove-shaped body 34, and the cutting blade 37 is firmly fixed. The support wheel 35 rolls on the second rail 22, thereby eliminating a gap between the pinch and the first rail 21. Specifically, a bearing is provided in the center of the supporting wheel 35, and the supporting wheel 35 rotates about the second connecting shaft 351 through the bearing.

Further, referring to fig. 4, two side walls of the middle portion of the groove-shaped body 34 are respectively provided with a limiting column 36, the dividing cutter 37 is located between the limiting columns 36 on the two sides, the bolt penetrates through the limiting column 36 on one side after penetrating through the side wall on one side of the groove-shaped body 34, then penetrates through the dividing cutter 37, penetrates through the limiting column 36 on the other side, and then penetrates out from the side wall on the other side of the groove-shaped body 34, and then is connected with the nut to fix the dividing cutter 37. The position of the slitting knife 37 can be adjusted through the limiting column 36, so that the slitting knife 37 is just positioned on the production path of the film, and the slitting knife 37 can smoothly cut the film.

Specifically, referring to fig. 5, the slitting knife 37 includes a knife holder 371, a guiding portion 374 is vertically disposed at one end of the knife holder 371, a mounting groove 375 is disposed at an inner corner of a joint of the knife holder 371 and the guiding portion 374, a cutting edge of the blade 376 is outwardly obliquely mounted in the mounting groove 375, a fixing hole 372 connected to the groove-shaped body 34 of the supporting portion in a matched manner is disposed on the knife holder 371, a drawing hole 373 is disposed at one end of the knife holder 371 away from the guiding portion 374, and the drawing wire 5 is connected to the slitting knife 37 through the drawing hole 373. The knife holder 371 is connected and fixed with the groove-shaped body 34, and the guide part 374 expands the flat film and cuts the film by the blade 376 in the process of moving the film downwards. The blade 376 is mounted in the mounting channel 375 such that the blade 376 is replaceable without being sharpened. The insert 376 can be tightened by cross-head bolts provided on the holder 371 and the guide 374.

Referring to fig. 1 and 2, in order to make the slitting device 3 suitable for a wider film width dimension, the other end of the spring 6 is connected with a piston rod of the cylinder 7, and the bottom of the cylinder 7 is connected with an ear plate 11 extending out of the frame 1. Meanwhile, when the piston rod of the air cylinder 7 extends out, the cutting device 3 is conveniently placed in the flat annular film, and the piston rod of the air cylinder 7 is retracted, so that the cutting devices 3 on the two sides tension the film. In actual use, in order to prevent the cylinder 7 from having too large force, when the piston rod of the cylinder 7 is retracted, the slitting device 3 breaks the film, the cylinder 7 is connected with the electromagnetic reversing valve through the air pipe, the electromagnetic reversing valve is connected with the air source triple piece, the working pressure of the cylinder 7 is adjusted through the air source triple piece, and therefore the pulling force when the piston rod of the cylinder 7 is retracted is adjusted. Preferably, the cylinder 7 adopts an MAL series phi 20 micro cylinder.

The utility model discloses a working process and principle:

when the device is used, the flat film drawn out from the traction device is firstly sleeved on the cutting devices 3 at two sides, the cutting devices 3 tension the film through the springs 6 and the air cylinders 7, when the film is pulled downwards, the blades 376 on the cutting devices 3 cut the annular film into two layers of flaky films, and then the flaky film is wound through the winding device.

Claims

1. Device is cut on line to film, frame (1) including both sides, its characterized in that: a supporting track (2) is arranged between the machine frames (1) on the two sides, two symmetrical cutting devices (3) are mounted on the supporting track (2), the cutting devices (3) can slide left and right along the supporting track (2), one side, close to the machine frames (1), of each cutting device (3) is connected with one end of a stay wire (5), the stay wires (5) penetrate out of the machine frames (1) and are connected with one end of a spring (6) after passing through a guide wheel (4), and the other end of the spring (6) is fixedly connected with the machine frames (1); the slitting device (3) comprises a clamping and conveying part matched with the supporting track (2) in a directional moving mode and a supporting part arranged on the clamping and conveying part, and a slitting knife (37) used for cutting a film is arranged on the supporting part.

2. The on-line film slitting device according to claim 1, characterized in that: the supporting rails (2) comprise rectangular first rails (21) arranged diagonally from top to bottom and second rails (22) horizontally arranged on the upper side, the clamping and conveying parts of the cutting device (3) vertically clamp the first rails (21), and the supporting parts of the cutting device (3) are supported on the second rails (22).

3. The on-line film slitting device according to claim 2, characterized in that: the pinch portion comprises a support plate (31), two first clamping wheels (331) are arranged on the upper portion of one side of the support plate (31), one second clamping wheel (332) is arranged on the lower portion of the upper portion of one side of the support plate (31), the first clamping wheels (331) and the second clamping wheels (332) are connected with the support plate (31) through first connecting shafts (32), annular V-shaped grooves are formed in the outer circumferences of the first clamping wheels (331) and the second clamping wheels (332), and the first clamping wheels (331) and the second clamping wheels (332) clamp the first rail (21) vertically through the V-shaped grooves.

4. The on-line film slitting device according to claim 2, characterized in that: the supporting part comprises a groove-shaped body (34), one side of the groove-shaped body (34) is connected with a supporting plate (31) of the clamping and conveying part, the other side of the groove-shaped body is provided with a supporting wheel (35), the supporting wheel (35) is connected with the groove-shaped body (34) through a second connecting shaft (351), a second rail (22) supports the supporting wheel (35), and a slitting knife (37) is installed in the middle of the groove-shaped body (34).

5. The on-line film slitting device according to claim 4, characterized in that: the groove-shaped body (34) is characterized in that two side walls of the middle of the groove-shaped body (34) are respectively provided with a limiting column (36), the dividing cutter (37) is positioned between the limiting columns (36) on two sides, the bolt penetrates through the limiting column (36) on one side after penetrating through the side wall on one side of the groove-shaped body (34), then penetrates through the dividing cutter (37), penetrates out of the side wall on the other side of the groove-shaped body (34) after penetrating through the limiting column (36) on the other side, and then is connected with the nut to fix the dividing cutter (37).

6. An on-line film slitting device according to claim 1 or 4, wherein: the slitting knife (37) comprises a knife holder (371), one end of the knife holder (371) is perpendicularly provided with a guide part (374), an inner angle of a joint of the knife holder (371) and the guide part (374) is provided with a mounting groove (375), a cutting edge of a blade (376) is installed in the mounting groove (375) in an outward inclined mode, a fixing hole (372) which is connected with a groove-shaped body (34) of a supporting part in a matched mode is formed in the knife holder (371), one end, far away from the guide part (374), of the knife holder (371) is provided with a traction hole (373), and a stay wire (5) is connected with the slitting knife (37) through the traction hole (373).

7. The on-line film slitting device according to claim 1, characterized in that: the other end of the spring (6) is connected with a piston rod of the air cylinder (7), and the bottom of the air cylinder (7) is connected with an ear plate (11) extending out of the frame (1).