CN212602124U

CN212602124U - Device is decided to film rim charge

Info

Publication number: CN212602124U
Application number: CN202021772247.2U
Authority: CN
Inventors: 张春华; 秦志红; 白汝佳; 杨丁卯; 陈诚发
Original assignee: Guangdong Simcheng Plastics Machinery Co Ltd
Current assignee: Guangdong Simcheng Plastics Machinery Co Ltd
Priority date: 2020-08-21
Filing date: 2020-08-21
Publication date: 2021-02-26
Anticipated expiration: 2030-08-21

Abstract

The utility model discloses a film rim charge cutting device, which comprises a frame, a swing arm, a movable knife arranged on the swing arm, a spring, a fixed knife arranged on the frame and a swing cylinder; one end of the swing arm is sleeved on a main shaft of the swing cylinder through the one-way bearing, one end of the spring is fixed on the frame, the other end of the spring is fixed on the swing arm, the swing cylinder is used for driving the swing arm to swing so that the spring obtains the maximum stretching amount, and the spring drives the swing arm to swing through the contraction force after obtaining the maximum stretching amount, so that the movable cutter and the fixed cutter are matched to cut off the rim charge. The utility model provides a device is decided to film rim charge can all move the sword flyover through the drive when the high-speed rolling of film or shut down, makes to move the sword and decide the sword cooperation to the rim charge fast, eliminates the potential safety hazard that artifical broken edge brought, improves the automatic level of film rolling, is convenient for improve work efficiency.

Description

Device is decided to film rim charge

Technical Field

The utility model relates to a film rolling technical field, in particular to device is decided to film rim charge.

Background

In the process of film rolling, the film needs to be cut into different product specifications, the film can form two parts of a normally rolled film and a rim charge after being cut, and the cut rim charge needs to be recycled on line. When the edge materials need to be recovered after being cut, the edge materials beside the edge material recovery pipe are generally broken by adopting a manual tearing mode to form two sections of edge materials, and then the free ends (namely the edge material tearing positions) of the two sections of edge materials are all placed into the edge material recovery pipe, so that the edge materials are recovered on line. Because the broken edge operation is often carried out when the film rolling machine is in a high-speed rolling working state, the broken edge mode of manually tearing off the broken edge materials has great potential safety hazard, and a device capable of automatically cutting the edge materials is urgently needed.

It is seen that improvements and enhancements to the prior art are needed.

SUMMERY OF THE UTILITY MODEL

In view of the foregoing prior art, an object of the utility model is to provide a device is decided to film rim charge aims at deciding the rim charge with automizing, eliminates the potential safety hazard that artifical broken edge brought.

In order to achieve the purpose, the utility model adopts the following technical proposal:

a film rim charge cutting device comprises a frame, a swing arm, a movable knife arranged on the swing arm, a spring, a fixed knife arranged on the frame and a swing cylinder; one end of the swing arm is sleeved on a main shaft of the swing cylinder through the one-way bearing, one end of the spring is fixed on the frame, the other end of the spring is fixed on the swing arm, the swing cylinder is used for driving the swing arm to swing so that the spring obtains the maximum stretching amount, and the spring drives the swing arm to swing through the contraction force after obtaining the maximum stretching amount, so that the movable cutter and the fixed cutter are matched to cut off the rim charge.

The swing arm is characterized in that a stepped hole is formed in the connecting end of the swing arm, a main shaft of the swing cylinder extends into the stepped hole, the one-way bearing is installed in the stepped hole, a spacer bush is further sleeved on the main shaft of the swing cylinder, an end cover is fixedly arranged on the swing arm, and the end cover compresses the spacer bush on the one-way bearing.

A rolling bearing is arranged between the end cover and a main shaft of the swing cylinder, a gland is arranged at the end part of the main shaft of the swing cylinder, and the gland is used for pressing the rolling bearing on the spacer bush.

The support is arranged on the rack, the support is connected with a first mounting piece through a pivot, the end cover is connected with a second mounting piece through a pivot, and the first mounting piece and the second mounting piece are connected through a spring.

The spring is equipped with two, seted up a first connecting hole respectively on two adjacent corners of first installation piece, seted up a second connecting hole respectively on two adjacent corners of second installation piece, two springs are parallel to each other, every the one end of spring is fixed in the first connecting hole, and the other end is fixed in the second connecting hole.

The support is provided with at least two first waist-shaped holes extending along the transverse direction, the rack is provided with first threaded holes corresponding to the first waist-shaped holes, one screw penetrates through each first waist-shaped hole of each support, and each screw is screwed into the corresponding first threaded hole.

The fixed cutter is arranged on the rack through the cutter holder, the fixed cutter is horizontally arranged on the cutter holder, the cutter holder is provided with at least two second waist-shaped holes extending vertically, the rack is provided with second threaded holes corresponding to the second waist-shaped holes, the second waist-shaped holes of each cutter holder penetrate through a screw respectively, and each screw is screwed into the corresponding second threaded hole respectively.

The swing arm is the L type, and it is including the ring connecting portion, turning portion and the cutter installation department that connect gradually, move the sword setting in the cutter installation department, ring connecting portion cover is on swing cylinder's main shaft.

A protective cover is arranged on the machine frame.

Has the advantages that:

compare with current artifical limit mode of breaking, the utility model provides a device is decided to film rim charge can all move the sword fly swing through the drive when the high-speed rolling of film or when shutting down, makes and moves the sword and decide the sword cooperation and decide the rim charge fast, eliminates the potential safety hazard that artifical limit of breaking brought, improves the automation level of film rolling, is convenient for improve work efficiency.

Drawings

Fig. 1 is the structure diagram of the film rim charge cutting device in the initial state provided by the present invention.

Fig. 2 is the schematic structural diagram of the film rim charge cutting device provided by the present invention when the rim is broken.

Fig. 3 is the schematic structural diagram of the film rim charge cutting device after edge breakage.

Fig. 4 is a top view of the film rim charge cutting device provided by the present invention.

Fig. 5 is a cross-sectional view of the film rim charge cutting device provided by the present invention.

Fig. 6 is an assembly view of the film rim charge cutting device provided by the utility model.

Fig. 7 is the structure diagram of the film rim charge cutting device provided by the utility model with the protective cover.

Description of the main element symbols: 1-frame, 2-swing arm, 3-moving blade, 4-spring, 5-fixed blade, 6-swing cylinder, 7-one-way bearing, 21-step hole, 22-spacer, 23-end cover, 24-rolling bearing, 25-gland, 8-support, 81-first mounting piece, 82-second mounting piece, 83-first connecting hole, 84-second connecting hole, 85-first waist-shaped hole, 11-first threaded hole, 12-second threaded hole, 9-shield, 51-cutter seat, 52-second waist-shaped hole.

Detailed Description

The utility model provides a device is decided to film rim charge, for making the utility model discloses a purpose, technical scheme and effect are clearer, clear and definite, and it is right that the following refers to the drawing and the embodiment of lifting is the utility model discloses further detailed description. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the scope of the invention.

Referring to fig. 1-6, the present invention provides a film rim charge cutting device, which comprises a frame 1, a swing arm 2, a movable knife 3 disposed on the swing arm 2, a spring 4, a fixed knife 5 disposed on the frame 1, and a swing cylinder 6; one end of the swing arm 2 is sleeved on the main shaft 61 of the swing cylinder 6 through the one-way bearing 7, one end of the spring 4 is fixed on the frame 1, the other end of the spring is fixed on the swing arm 2, the swing cylinder 6 is used for driving the swing arm 2 to swing so that the spring 4 obtains the maximum stretching amount, the spring 4 drives the swing arm 2 to swing through the contractive force after obtaining the maximum stretching amount, and the movable cutter 3 and the fixed cutter 5 are matched to cut off the rim charge 92.

It should be noted that the swing arm 2 is L-shaped, and includes a circular ring connecting portion, a corner portion and a tool mounting portion which are connected in sequence, the movable blade 3 is arranged in the tool mounting portion, and the circular ring connecting portion is sleeved on the main shaft 61 of the swing cylinder 6. The one-way bearing 7 is also called an overrunning clutch and can be purchased in the market. The direction indicated by the hollow arrow in fig. 4 is the film conveying direction.

The following brief description is made on the working principle: when the film rim charge cutting device is in an initial state, the movable knife 3 faces upwards, the movable knife 3 is kept still under the driving of the swing cylinder 6, and the spring 4 is in the state of maximum stretching amount, the rim charge 92 is positioned above the fixed knife 5 (shown in figure 1), when the leftover materials need to be recovered, the swing air cylinder 6 swings in a set direction (namely, the direction indicated by a hollow arrow in figure 1, which is a counterclockwise direction) under the action of the electromagnetic valve, under the action of the one-way bearing 7, the swing arm 2 and the main shaft of the swing cylinder 6 are in a free rotation state at the moment, and after the swing arm 2 loses the acting force of the swing cylinder, the spring 4 obtains great rotational kinetic energy under the action of the contraction force to drive the movable knife 3 to swing towards the fixed knife 5 at a very high speed, so that the movable knife 3 and the fixed knife 5 are matched to form a cutting opening, and then the rim charge 92 (shown in figure 2) in the cutting opening is cut; then the swing arm 2 continues to move to the position shown in fig. 3 under the action of inertia, the movable knife 3 faces downwards, and the spring 4 is in a state of minimum stretching amount; finally, the swing cylinder 6 drives the movable knife 3 to reset to an initial state (namely, the movable knife swings and resets along the direction indicated by a hollow arrow in fig. 3, the direction is clockwise), so that the spring 4 obtains the maximum stretching amount again to wait for the next edge breakage, and meanwhile, the interference between the movable knife 3 and the rim charge is avoided. A centrifugal fan is arranged beside the rim charge recycling pipe 91, and the rim charge 92 after being cut off is sucked into the rim charge recycling pipe 91 by the centrifugal fan, so that the rim charge can be recycled on line. The swing range of the swing cylinder is 0-180 degrees.

The utility model provides a device is decided to film rim charge can all be through moving sword and stationary knife cooperation when the high-speed rolling of film or shut down, decide rim charge 92 fast with automatic, eliminate the potential safety hazard that artifical broken edge brought, improve the automatic level of film 93 rolling, be convenient for improve work efficiency.

Preferably, referring to fig. 5, a stepped hole 21 is formed in a connecting end of the swing arm 2, a main shaft 61 of the swing cylinder 6 extends into the stepped hole 21, the one-way bearing 7 is installed in the stepped hole 21, a spacer 22 is further sleeved on the main shaft 61 of the swing cylinder 6, an end cover 23 is fixedly arranged on the swing arm 2, the end cover 23 presses the spacer 22 on the one-way bearing 7, and one side of the one-way bearing 7 is pressed on a circular ring connecting portion of the swing arm 2, so that the axial positioning of the one-way bearing 7 is realized. The end cover 23 is connected with the swing arm 2 through screws, so that the end cover is convenient to disassemble and assemble.

In order to better support the swing arm and improve the stability of the swing arm 2 rotating around the main shaft 61 of the swing cylinder 6, a rolling bearing 24 is arranged between the end cover 23 and the main shaft of the swing cylinder 6, a gland 25 is arranged at the end part of the main shaft of the swing cylinder 6, and the gland 25 is used for pressing the rolling bearing 24 on the spacer 22, so that the rolling bearing 24 is axially positioned. The main shaft 61 of the swing cylinder 6 is provided with an axial screw hole, the gland 25 is provided with a through hole corresponding to the axial screw hole, and the through hole of the gland 25 penetrates through a locking screw to be screwed into the axial screw hole.

Specifically, referring to fig. 1 to 3, a support 8 is disposed on the frame 1, a first mounting plate 81 is pivotally connected to the support 8, a second mounting plate 82 is pivotally connected to the end cover 23, and the first mounting plate 81 and the second mounting plate 82 are connected through the spring 4.

In order to provide bigger rotation kinetic energy (also can understand as cutting power) to swing arm 2, guarantee the reliability that film 93 was decided, spring 4 is equipped with two, a first connecting hole 83 has been seted up respectively on two adjacent corners of first installation piece 81, a second connecting hole 84 has been seted up respectively on two adjacent corners of second installation piece 82, two springs 4 are parallel to each other, every spring 4's one end is fixed in first connecting hole 83, the other end is fixed in second connecting hole 84. When the central axis of the first mounting piece 81, the central axis of the second mounting piece 82 and the axis of the swing cylinder 6 are collinear, and the second mounting piece 82 is located between the main shaft of the swing cylinder 6 and the first mounting piece 81, the spring obtains the minimum amount of tension, as shown in fig. 1. When the central axis of the first mounting piece 81, the central axis of the second mounting piece 82 and the axis of the swing cylinder 6 are collinear, and the main shaft of the swing cylinder 6 is located between the second mounting block 82 and the first mounting piece 81, the spring obtains the maximum stretching amount, as shown in fig. 2.

Preferably, referring to fig. 1 to 3, at least two first kidney-shaped holes 85 extending in the transverse direction are provided on the support 8, first threaded holes 11 corresponding to the first kidney-shaped holes 85 are provided on the frame 1, a screw passes through each first kidney-shaped hole 85 of each support 8, and each screw is screwed into the corresponding first threaded hole 11. The aim of adjusting the maximum stretching amount of the spring 4 is achieved by adjusting the transverse position of the support 8.

Preferably, the fixed knife 5 is disposed on the machine frame 1 through a knife holder 51, the fixed knife 5 is horizontally disposed on the knife holder 51, the knife holder 51 is provided with at least two second waist-shaped holes 52 extending along the vertical direction, the machine frame 1 is provided with second threaded holes 12 corresponding to the second waist-shaped holes 52, a screw passes through each second waist-shaped hole 52 of each knife holder 51, and each screw is screwed into the corresponding second threaded hole 12. The distance between the fixed knife 5 and the rim charge 92 can be adjusted by adjusting the position of the knife holder 51, so that the cutting effect is better ensured.

Preferably, as shown in fig. 7, a shield 9 is provided on the frame 1. The moving blade 3 is prevented from being touched by mistake in a non-working state by arranging the protective cover 9, and the use safety is improved.

It is understood that equivalent substitutions or changes can be made by those skilled in the art according to the technical solution of the present invention and the inventive concept thereof, and all such changes or substitutions shall fall within the scope of the present invention.

Claims

1. A film rim charge cutting device is characterized by comprising a rack, a swing arm, a movable knife arranged on the swing arm, a spring, a fixed knife arranged on the rack and a swing cylinder; one end of the swing arm is sleeved on a main shaft of the swing cylinder through the one-way bearing, one end of the spring is fixed on the frame, the other end of the spring is fixed on the swing arm, the swing cylinder is used for driving the swing arm to swing so that the spring obtains the maximum stretching amount, and the spring drives the swing arm to swing through the contraction force after obtaining the maximum stretching amount, so that the movable cutter and the fixed cutter are matched to cut off the rim charge.

2. The device is decided to film rim charge according to claim 1, characterized in that the link of swing arm is provided with a shoulder hole, the main shaft of swing cylinder stretches into the shoulder hole, the one-way bearing is installed in the shoulder hole, the main shaft of swing cylinder still overlaps there is the spacer, the swing arm is fixed with the end cover, the end cover compresses tightly the spacer on the one-way bearing.

3. The film rim charge cutting device according to claim 2, wherein a rolling bearing is arranged between the end cover and a main shaft of the swing cylinder, a gland is arranged at the end part of the main shaft of the swing cylinder, and the gland is used for pressing the rolling bearing on the spacer bush.

4. The film rim charge cutting device according to claim 2, wherein a support is arranged on the machine frame, a first mounting piece is pivotally connected to the support, a second mounting piece is pivotally connected to the end cover, and the first mounting piece and the second mounting piece are connected through the spring.

5. The apparatus for cutting off the rim charge of a thin film as claimed in claim 4, wherein the number of the springs is two, two adjacent corners of the first mounting plate are respectively provided with a first connecting hole, two adjacent corners of the second mounting plate are respectively provided with a second connecting hole, the two springs are parallel to each other, one end of each spring is fixed in the first connecting hole, and the other end of each spring is fixed in the second connecting hole.

6. The film edge trim cutting device according to claim 4, wherein the support is provided with at least two first waist-shaped holes extending in the transverse direction, the frame is provided with first threaded holes corresponding to the first waist-shaped holes, the first waist-shaped hole of each support is penetrated by a screw, and each screw is screwed into the corresponding first threaded hole.

7. The film edge trim cutting device according to claim 1, wherein the fixed blade is disposed on the frame through a blade holder, the fixed blade is horizontally disposed on the blade holder, the blade holder is provided with at least two second waist-shaped holes extending vertically, the frame is provided with a second threaded hole corresponding to the second waist-shaped holes, each second waist-shaped hole of the blade holder is penetrated by a screw, and each screw is screwed into the corresponding second threaded hole.

8. The film rim charge cutting device of claim 1, wherein the swing arm is L-shaped and comprises a circular ring connecting part, a corner part and a cutter mounting part which are connected in sequence, the movable cutter is arranged in the cutter mounting part, and the circular ring connecting part is sleeved on a main shaft of the swing cylinder.

9. The film edge trim cutting device of claim 1, wherein a guard is disposed on the frame.