KR102195497B1 - System for cutting film - Google Patents

Abstract

Disclosed is a system for cutting a film. According to one embodiment of the present invention, the system for cutting a film includes: a vacuum type back-up bar unit provided on one side of the film and absorbing and supporting the film with vacuum when the film is cut; a shear knife cutting the film and manufactured in a linear shape; and a knife supporting film clamping unit supporting the shear knife and clamping the film in cooperation with the vacuum type back-up bar unit when the film is cut. Therefore, the system for cutting a film can prevent surrounding environments from being contaminated.

Description

Film cutting system {System for cutting film}

The present invention relates to a film cutting system, and more particularly, it is possible to cut a film in a simple but efficient method, so that the film cutting time can be reduced compared to the prior art, thereby increasing production capacity. It relates to a film cutting system that can prevent contamination of the surrounding environment by removing fluff during cutting.

In the case of a protective film or other film that protects glass used in the display industry, a motor (20, Moter) is mounted on a wheel-shaped wheel knife (10) as shown in FIG. , The rotation of the wheel knife 10 allows the film to be cut. As shown in FIG. 1, a method of applying the wheel knife 10 is common.

However, the prior art as shown in FIG. 1 is a method in which the wheel knife 10 continuously rotates to reach the other end of the film and cuts the film. As the length of the film increases, the film cutting time increases and the production capacity decreases. There is a problem.

In addition, in the case of the prior art to which the wheel knife 10 is applied, it is considered that fluff may be generated when cutting the film due to the impact of the wheel knife 10 pressing on the film, thereby contaminating the surrounding environment, To solve this problem, it is necessary to develop technology for a new concept cutting system.

Korean Intellectual Property Office Application No. 20-1993-0019382

Therefore, the technical problem to be achieved by the present invention is that it is possible to cut the film in a simple but efficient method, so that the film cutting time can be reduced compared to the prior art to increase production capacity, and furthermore, the occurrence of fluff during film cutting is eliminated. It is to provide a film cutting system that can prevent contamination of the surrounding environment.

According to an aspect of the present invention, a vacuum type backup bar unit (Vacuum/Back-Up Bar Unit) provided on one side of a film and adsorbing and supporting the film by a vacuum when cutting the film; Shear Knife which cuts the film but is manufactured in a straight line; And a film clamping unit for supporting the shear knife and clamping the film in cooperation with the vacuum backup bar unit when cutting the film while supporting the shear knife.

The knife support film clamping unit may include a knife swing cylinder that provides power for cutting the film while the shear knife swings.

The film can be cut at a time by the action of the shear knife, and the knife support film clamping unit is connected to the knife swing cylinder and the knife support film clamping unit, and one stroke operation of the knife swing cylinder It may further include a power transmission unit for transmitting the power of the knife swing cylinder to the film clamping unit for supporting the knife so that the film cutting proceeds.

The power transmission unit may include a power transmission bar connected to the rod of the knife swing cylinder; And a plurality of power transmission links rotatably connected to both ends of the power transmission bar and the knife support film clamping unit.

The knife support film clamping unit, the knife holder (Knife Holder) to which the shear knife is supported interchangeably; And a film clamp disposed around the knife holder and connected to the knife holder to form one body with the knife holder, and clamping the film so that the film is not shaken when cutting the film.

The film clamp may be provided in plural to be spaced apart from each other so that the shear knife is disposed therebetween.

The knife support film clamping unit may include an elastic member connected to the film clamp and elastically supporting the film clamp; And a clamp body on which the elastic member is mounted.

The knife support film clamping unit includes: an up/down guide connected to the clamp body and guiding an up/down movement of the clamp body; And it may further include a guide bush (Guide Bush) for supporting the up / down guide.

It may further include a front vacuum bar disposed adjacent to the knife support film clamping unit, and adsorbing the film with a vacuum in a front region based on the shear knife.

It may further include a rear vacuum bar disposed on the opposite side of the front vacuum bar with respect to the shear knife, and adsorbing the film with a vacuum at a corresponding position.

The vacuum backup bar unit includes a vacuum backup bar having a plurality of vacuum holes for adsorbing the film into a vacuum, and having a knife arrangement groove formed on one side of the shear knife; And a vacuum providing unit connected to the vacuum backup bar and selectively providing vacuum to the vacuum hole of the vacuum backup bar.

The vacuum backup bar unit may further include a back-up cylinder connected to the vacuum backup bar and driving up/down the vacuum backup bar.

It may further include a controller for controlling the operation of the vacuum backup bar unit and the knife support film clamping unit with an organic mechanism so that the film is cut at a time by the action of the shear knife.

According to another aspect of the present invention, a film lower adsorption step of adsorbing a film to be cut to a vacuum from a lower portion through a front vacuum bar and a rear vacuum bar; A film upper adsorption step in which a vacuum-type backup bar unit (Vacuum/Back-Up Bar Unit) descends and adsorbs the film from an upper portion to a vacuum through a vacuum backup bar of the vacuum-type backup bar unit; And a film clamping and cutting step in which a film clamp for clamping the film and a shear knife for cutting the film are simultaneously raised and the film is clamped and cut. Can be provided.

Before performing the lower film adsorption step, a film tension providing step of providing tension to the film through a predetermined film tensioner may be further included.

After performing the film clamping and cutting step, it may further include a cutting film take-out step in which all vacuum is released and the cut-off cutting film is taken out.

The film clamping and cutting step may include a film clamping step of clamping the film by raising the film clamp; A film cutting step in which the shear knife raised together with the film clamp cuts the film; A knife descending step in which the shear knife cut the film descends; And a clamp descending step in which the film clamp clamping the film descends.

According to the present invention, since the film can be cut in a simple but efficient method, the film cutting time can be reduced compared to the prior art to increase production capacity, and furthermore, the surrounding environment is contaminated by eliminating fluff when cutting the film. Can be prevented.

1 is a diagram showing a conventional film cutting technique.
2 is a structural diagram of a film cutting system according to an embodiment of the present invention.
3 is a side view of FIG. 2.
4 is a view showing the film cutting system of FIG. 2 from a different direction.
5 is a side view of FIG. 4.
6 to 13 are views showing a process of a film cutting system according to an embodiment of the present invention.
14 is a control block diagram of a film cutting system according to an embodiment of the present invention.
15 is a flowchart of a film cutting method according to an embodiment of the present invention.

In order to fully understand the present invention, operational advantages of the present invention, and objects achieved by the implementation of the present invention, reference should be made to the accompanying drawings illustrating preferred embodiments of the present invention and the contents described in the accompanying drawings.

Hereinafter, the present invention will be described in detail by describing a preferred embodiment of the present invention with reference to the accompanying drawings. The same reference numerals in each drawing indicate the same member.

2 is a structural diagram of a film cutting system according to an embodiment of the present invention, FIG. 3 is a side view of FIG. 2, FIG. 4 is a view showing the film cutting system of FIG. 2 from another direction, and FIG. 5 is 6 to 13 are views showing a process of a film cutting system according to an embodiment of the present invention, and FIG. 14 is a control block diagram of a film cutting system according to an embodiment of the present invention. 15 is a flow chart of a film cutting method according to an embodiment of the present invention.

Referring to these drawings, according to the film cutting system according to the present embodiment, the film can be cut in a simple but efficient manner, so that the film cutting time can be reduced compared to the prior art to increase production capacity. When cutting, fluffing is eliminated to prevent contamination of the surrounding environment.

The film cutting system according to the present embodiment that can provide such an effect includes a vacuum/back-up bar unit 110 (Vacuum/Back-Up Bar Unit) having an upper structure and a knife support having a lower structure based on the film to be cut. It includes a film clamping unit 150 for.

In particular, in the film cutting system of this embodiment, a linear shear knife 130 is applied instead of the conventional wheel knife 10 shown in FIG. 1, and a vacuum backup bar The film is cut in a one-stroke operation due to the mutually cooperative action of the unit 110 and the knife support film clamping unit 150.

Therefore, it is possible to shorten the film cutting time irrespective of the length of the film, thereby preventing a decrease in production capacity. In addition, it is possible to eliminate the problem of polluting the surrounding environment by generating fluff when cutting the film as before.

Referring first to FIGS. 2 to 4, the vacuum backup bar unit 110 is an upper structure disposed above the film and supports the film in the upper region. In particular, the film is adsorbed and supported by a vacuum.

This vacuum-type backup bar unit 110 includes a vacuum backup bar 111 for adsorbing a film into a vacuum. The vacuum backup bar 111 is a duct-like structure with an empty inside, and a plurality of vacuum holes 111a are formed on one side thereof. As the vacuum is formed in the vacuum hole 111a, the film may be adsorbed on the wall surface of the vacuum backup bar 111 in which the vacuum hole 111a is formed.

A vacuum providing unit 112 is provided so that vacuum is provided through the vacuum hole 111a. The vacuum providing unit 112 is connected to the vacuum backup bar 111 and serves to selectively provide a vacuum to the vacuum hole 111a of the vacuum backup bar 111.

A common vacuum room 111c is formed inside the vacuum backup bar 111 so that the vacuum provided from the vacuum providing unit 112 can be equally provided to the plurality of vacuum holes 111a.

In addition, a knife arrangement groove 111b is formed at an end of the vacuum backup bar 111 facing the shear knife 130. Since the cutting edge region of the shear knife 130 cut the film is disposed in the knife placement groove 111b, it is possible to prevent damage to the cutting edge of the shear knife 130.

The vacuum-type backup bar unit 110 includes a backup cylinder 113 (Back-Up Cylinder). The backup cylinder 113 is connected to the vacuum backup bar 111, and serves to drive the vacuum backup bar 111 up/down (Up/Down). Since a plurality of backup cylinders 113 are applied to the vacuum backup bar 111, the vacuum backup bar 111 can be stably driven up/down (Up/Down).

The shear knife 130 serves to substantially cut the film. As described above, the shear knife 130 is provided in a linear shape rather than the conventional wheel knife 10 (Knife) shown in FIG. 1, and one stroke of the film clamping unit 150 for knife support The action allows the film to be cut at once.

The knife support film clamping unit 150 serves to support the shear knife 130 and clamp the film in cooperation with the vacuum backup bar unit 110 when cutting the film.

This knife support film clamping unit 150 includes a knife swing cylinder 135 (Knife Swing Cylinder). The knife swing cylinder 135 provides power for cutting the film while the shear knife 130 swings.

In the case of this embodiment, the film is cut at once by the action of the shear knife 130 through the power of the knife swing cylinder 135. For this purpose, the power transmission unit 140 is provided to the film clamping unit 150 for knife support. It is equipped.

The power transmission unit 140 is connected to the knife swing cylinder 135 and the film clamping unit 150 for supporting the knife, and the knife swing cylinder 135 is cut by one stroke operation of the knife swing cylinder 135. It serves to transmit the power to the knife support film clamping unit 150.

The power transmission unit 140 is connected to a power transmission bar 141 connected to the rod 135a of the knife swing cylinder 135, and both ends thereof are respectively connected to the power transmission bar 141 and the film clamping unit 150 for knife support. It may include a plurality of power transmission links 142 rotatably connected.

Accordingly, as the power transmission unit 140 repeatedly drives the shear knife 130 up and down whenever the knife swing cylinder 135 is operated as shown by the dark arrow of FIG. 2, film cutting can be performed more effectively than the conventional one. .

In addition to this configuration, the knife clamping unit 150 for supporting the knife further includes a knife holder 151 and a film clamp 152.

The knife holder 151 supports the shear knife 130. The shear knife 130 is supported interchangeably on the knife holder 151, and due to this structure, cleaning or replacing the shear knife 130 can be facilitated.

The film clamp 152 is disposed around the knife holder 151 and is connected to the knife holder 151 to form a body with the knife holder 151, and serves to clamp the film so as not to shake when cutting the film. Finally, by allowing the film to be cut by the shear knife 130 while the film clamp 152 clamps the film, excellent cutting quality can be implemented. Also, since it is cut at once, there is no fluff.

In this embodiment, a plurality of film clamps 152 are provided to be spaced apart from each other so that the shear knife 130 is disposed therebetween. The plurality of film clamps 152 are connected to each other and operate together.

An elastic member 153 is connected to the film clamp 152. The elastic member 153 may be a torsion coil compression spring.

The elastic member 153 has one end connected to the clamp body 154 and the other end connected to the film clamp 152 to elastically support the film clamp 152.

When the film clamp 152 rises to clamp the film, the elastic member 153 may act elastically so that excessive pressure is not applied to the film. Accordingly, damage to the film can be prevented, and further damage to the vacuum backup bar 111 can be prevented.

The clamp body 154 is provided with an up/down guide 155 for guiding an up/down movement of the clamp body 154. And, the up/down guide 155 is provided with a guide bush 156 to support the up/down guide 155. The up/down movement of the film clamp 152 can be stably implemented by the action of the up/down guide 155 and the guide bush 156.

In the film cutting system according to the present embodiment, a front vacuum bar 161 and a rear vacuum bar 163 are further provided.

The front vacuum bar 161 is disposed adjacent to the film clamping unit 150 for knife support, and serves to adsorb the film from the front region based on the shear knife 130 to the vacuum.

In addition, the rear vacuum bar 163 is disposed on the opposite side of the front vacuum bar 161 with respect to the shear knife 130, and serves to adsorb the film to the vacuum at the corresponding position.

The operations of the front vacuum bar 161 and the rear vacuum bar 163 may be controlled by the controller 170.

Meanwhile, the controller 170 is further applied to the film cutting system according to the present embodiment. The controller 170 controls the operation of the vacuum backup bar unit 110 and the knife support film clamping unit 150 with an organic mechanism so that the film is cut at once by the action of the shear knife 130.

The controller 170 performing this role may include a central processing unit 171 (CPU), a memory 172 (MEMORY), and a support circuit 173 (SUPPORT CIRCUIT).

The central processing unit 171 is to control the operation of the vacuum backup bar unit 110 and the film clamping unit 150 for knife support so that the film is cut at once by the action of the shear knife 130 in this embodiment. It may be one of various computer processors that can be applied industrially.

The memory 172 (MEMORY) is connected to the central processing unit 171. The memory 172 can be installed locally or remotely as a computer-readable recording medium, and can be easily used, such as random access memory (RAM), ROM, floppy disk, hard disk, or any digital storage type. It may be at least one or more memories.

The support circuit 173 (SUPPORT CIRCUIT) is combined with the central processing unit 171 to support the typical operation of the processor. The support circuit 173 may include a cache, a power supply, a clock circuit, an input/output circuit, a subsystem, and the like.

In this embodiment, the controller 170 controls the operation of the vacuum backup bar unit 110 and the film clamping unit 150 for knife support with an organic mechanism so that the film is cut at once by the action of the shear knife 130 However, such a series of control processes may be stored in the memory 172. Typically software routines may be stored in memory 172. Software routines can also be stored or executed by other central processing units (not shown).

Although the process according to the present invention has been described as being executed by a software routine, it is possible that at least some of the processes of the present invention are performed by hardware. As such, the processes of the present invention may be implemented by software executed on a computer system, or by hardware such as an integrated circuit, or by a combination of software and hardware.

Hereinafter, a film cutting method according to the present embodiment will be described with reference to FIGS. 6 to 13 and FIG. 15.

First, a film tension providing step (S10) of providing tension to the film through a predetermined film tensioner 165 as shown in FIG. 6 is performed. Cut the film by pulling it tightly to make accurate cutting.

Next, as shown in FIG. 7, a film lower adsorption step (S20) of adsorbing the film to be cut to the vacuum from the lower portion through the front vacuum bar 161 and the rear vacuum bar 163 proceeds.

Next, as shown in FIG. 8, the vacuum-type backup bar unit 110 descends and the film upper adsorption step (S30) of adsorbing the film from the top to the vacuum through the vacuum backup bar 111 of the vacuum-type backup bar unit 110 proceeds. do.

Then, as shown in FIGS. 9 to 12, the film clamp 152 for clamping the film and the shear knife 130 for cutting the film rise at the same time, and the film clamping and cutting step S40 in which the film is clamped and cut is performed.

In this film clamping and cutting step (S40), the film clamping step (S41) in which the film clamp 152 rises to clamp the film as shown in FIG. 9 and the shear knife 130 that rises together with the film clamp 152 as shown in FIG. Film cutting step (S42) for cutting the film, knife lowering step (S43) in which the shear knife 130 cut the film descends as shown in FIG. 11, and the film clamp 152 clamping the film as in FIG. 12 descends. It may include a clamp descending step (S44).

After the film cutting is completed and, for example, one film is cut into two, as shown in FIG. 13, all vacuums are released, and a cutting film taking out step (S50) in which the cut-off cutting film is taken out proceeds.

According to this embodiment, which acts in the structure as described above, it is possible to cut the film in a simple but efficient manner, so that the film cutting time can be reduced compared to the prior art to increase production capacity, and furthermore, film cutting. It is possible to prevent contamination of the surrounding environment by eliminating the occurrence of fluff.

As described above, the present invention is not limited to the described embodiments, and it is apparent to those of ordinary skill in the art that various modifications and variations can be made without departing from the spirit and scope of the present invention. Therefore, it should be said that such modifications or variations belong to the claims of the present invention.

110: vacuum backup bar unit 111: vacuum backup bar
111a: vacuum hole 111b: knife placement groove
112: vacuum providing unit 113: backup cylinder
130: shear knife 135: knife swing cylinder
140: power transmission unit 141: power transmission bar
142: power transmission link 150: film clamping unit for knife support
151: knife holder 152: film clamp
153: elastic member 154: clamp body
155: up/down guide 156: guide bush
161: front vacuum bar 163: rear vacuum bar
165: film tensioner 170: controller

Claims (17)

A vacuum type backup bar unit (Vacuum/Back-Up Bar Unit) provided on one side of the film and adsorbing and supporting the film with a vacuum when cutting the film;
Shear Knife which cuts the film but is manufactured in a straight line; And
It includes a knife support film clamping unit for supporting the shear knife and clamping the film in cooperation with the vacuum backup bar unit when cutting the film,
The knife support film clamping unit,
A knife swing cylinder that provides power for cutting the film while the shear knife swings;
A knife holder on which the shear knife is interchangeably supported;
A film clamp disposed around the knife holder and connected to the knife holder to form one body with the knife holder, and clamping the film so that the film does not shake when cutting the film;
An elastic member connected to the film clamp and elastically supporting the film clamp;
A clamp body on which the elastic member is mounted;
An up/down guide connected to the clamp body and guiding an up/down movement of the clamp body; And
Film cutting system comprising a guide bush (Guide Bush) for supporting the up / down guide. delete The method of claim 1,
The film is cut at once by the action of the shear knife,
The knife support film clamping unit,
Power transmission that is connected to the knife swing cylinder and the knife support film clamping unit, and transmits the power of the knife swing cylinder to the knife support film clamping unit so that the film cutting proceeds with one stroke operation of the knife swing cylinder Film cutting system, characterized in that it further comprises a portion. The method of claim 3,
The power transmission unit,
A power transmission bar connected to the rod of the knife swing cylinder; And
A film cutting system comprising a plurality of power transmission links rotatably connected at both ends to the power transmission bar and the knife support film clamping unit. delete The method of claim 1,
The film cutting system, characterized in that a plurality of the film clamps are provided to be spaced apart from each other so that the shear knife is disposed therebetween. delete delete The method of claim 1,
Film cutting, characterized in that it further comprises a front vacuum bar disposed adjacent to the knife support film clamping unit and adsorbing the film with a vacuum in a front region based on the shear knife system. The method of claim 9,
The film cutting system further comprises a rear vacuum bar disposed on the opposite side of the front vacuum bar with respect to the shear knife, and adsorbing the film with a vacuum at a corresponding position. The method of claim 1,
The vacuum backup bar unit,
A vacuum backup bar having a plurality of vacuum holes for adsorbing the film into a vacuum, and having a knife arrangement groove formed at one side toward the shear knife; And
And a vacuum providing unit connected to the vacuum backup bar and selectively providing vacuum to the vacuum hole of the vacuum backup bar. The method of claim 11,
The vacuum backup bar unit,
The film cutting system further comprises a backup cylinder connected to the vacuum backup bar and driving up/down the vacuum backup bar. The method of claim 1,
The film cutting system further comprises a controller for controlling the operation of the vacuum backup bar unit and the knife support film clamping unit with an organic mechanism so that the film is cut at once by the action of the shear knife. delete delete delete delete

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