KR101998485B1 - Die Cutting Press Machine and Method for Cutting Film with the Same - Google Patents

Abstract

The present invention relates to a die cutting press machine capable of continuous cutting of a film and a method of cutting a film by the die cutting machine. More particularly, the present invention relates to a die cutting press machine capable of continuously cutting a film, To a die cutting press machine and a method of cutting a film thereby. A method of cutting a film includes preparing a moving die and a fixing die; Setting a moving distance of the moving die; Providing a fabric film attached to the base film; And moving the upper die to cut the fabric film into a defined shape, the movement distance of the die being determined based on the thickness of the fabric film and the upper die being continuously moved up and down, Cut the film.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a die cutting press machine and a method for cutting a film by the die cutting press machine,

The present invention relates to a die cutting press machine capable of continuous cutting of a film and a method of cutting a film by the die cutting machine. More particularly, the present invention relates to a die cutting press machine capable of continuously cutting a film, To a die cutting press machine and a method of cutting a film thereby.

Various types of films may be used in various devices for the purpose of adhesion or protection. For example, mobile phones, semiconductors. Various types of protective or adhesive films may be used in devices such as TVs, displays or automobiles. The adhesive film can be made of various kinds of resins and can be used mainly for bonding between plate-like materials. The adhesive film can bond two different materials by heat or ultraviolet rays. It also needs to be cut to a predetermined size to be applied to the product.

As a prior art related to film cutting, Japanese Patent Application Laid-Open No. 2008-0046332 discloses a cutting apparatus for an adhesive film, an apparatus for attaching the adhesive film, and a method for cutting and adhering an adhesive film using the same. The prior art includes a roll film adsorption unit for adsorbing a roll film composed of a double layer of an adhesive film and a release film; And an adhesive film cutting unit for cutting the adhesive film from one side of the adhesive film to the other side of the adhesive film, wherein the cutting unit includes a cutting rod elongated in one direction and a film cutter coupled to an end of the cutting rod ; A cutting rod support portion coupled to the cutting rod to support the cutting rod; And a horizontal transfer portion coupled to the cutting rod support portion and adapted to transfer the film cutting portion toward the adhesive film such that the adhesive film is cut by the film cutter.

Another prior art related to film cutting is WO < RTI ID = 0.0 > 2005/095068 < / RTI > The prior art comprises a base film and an adhesive layer which is disposed on the base film and increases the adhesive force by heating, and an elongated adhesive film disc having a cover film disposed on the adhesive layer, A cutting method for producing an adhesive film having a narrow width of 2 or more by pressing a blade on a master disc to cut the original disc in parallel in the longitudinal direction. The prior art includes a cutting mechanism having a lower blade unit and an upper blade unit, and a transport mechanism for running the original of the adhesive film. Disclosed is a cutting apparatus having a heating mechanism for heating an original of an adhesive film, a heater, and a blower.

Another prior art related to film cutting is Patent Protecting No. 2013-0021856 'Protective film cutting device and protective film cutting method of touch film using the same. The prior art includes a stage; A touch film mounted on the stage; A peeling jig located at least one of an upper portion and a lower portion of the stage and adapted to absorb the protective film of the touch film; A cutting pad located on one side of the stage and protecting a pad portion of the touch film; And a cutting portion located at least one of an upper portion and a lower portion of the stage, the cutting portion cutting the protective film.

The cutting apparatus or method disclosed in the prior art has a disadvantage that it is difficult to continuously cut and also it is difficult to prevent deformation of the film.

The present invention has been made to solve the problems of the prior art and has the following purpose.

Various types of films may be used in various devices for the purpose of adhesion or protection. For example, mobile phones, semiconductors. Various types of protective or adhesive films may be used in devices such as TVs, displays or automobiles. The adhesive film can be made of various kinds of resins and can be used mainly for bonding between plate-like materials. The adhesive film can bond two different materials by heat or ultraviolet rays. It also needs to be cut to a predetermined size to be applied to the product. As a prior art related to film cutting, Japanese Patent Application Laid-Open No. 2008-0046332 discloses a cutting apparatus for an adhesive film, an apparatus for attaching the adhesive film, and a method for cutting and adhering an adhesive film using the same. The prior art includes a roll film adsorption unit for adsorbing a roll film composed of a double layer of an adhesive film and a release film; And an adhesive film cutting unit for cutting the adhesive film from one side of the adhesive film to the other side of the adhesive film, wherein the cutting unit includes a cutting rod elongated in one direction and a film cutter coupled to an end of the cutting rod ; A cutting rod support portion coupled to the cutting rod to support the cutting rod; And a horizontal transfer portion coupled to the cutting rod support portion and adapted to transfer the film cutting portion toward the adhesive film such that the adhesive film is cut by the film cutter. Another prior art related to film cutting is WO < RTI ID = 0.0 > 2005/095068 < / RTI > The prior art comprises a base film and an adhesive layer which is disposed on the base film and increases the adhesive force by heating, and an elongated adhesive film disc having a cover film disposed on the adhesive layer, A cutting method for producing an adhesive film having a narrow width of 2 or more by pressing a blade on a master disc to cut the original disc in parallel in the longitudinal direction. The prior art includes a cutting mechanism having a lower blade unit and an upper blade unit, and a transport mechanism for running the original of the adhesive film. Disclosed is a cutting apparatus having a heating mechanism for heating an original of an adhesive film, a heater, and a blower. Another prior art related to film cutting is Patent Protecting No. 2013-0021856 'Protective film cutting device and protective film cutting method of touch film using the same. The prior art includes a stage; A touch film mounted on the stage; A peeling jig located at least one of an upper portion and a lower portion of the stage and adapted to absorb the protective film of the touch film; A cutting pad located on one side of the stage and protecting a pad portion of the touch film; And a cutting portion located at least one of an upper portion and a lower portion of the stage, the cutting portion cutting the protective film. The cutting apparatus or method disclosed in the prior art has a disadvantage that it is difficult to continuously cut and also it is difficult to prevent deformation of the film. The present invention has been made to solve the problems of the prior art and has the following purpose.

It is an object of the present invention to provide a die cutting press machine capable of cutting at a high speed continuously while reducing deformation of the film by causing the film to be cut by the upper and lower dies.

Another object of the present invention is to provide a method of cutting a film by allowing the film to be cut by the upper and lower dies so that the film can be cut at a high speed continuously while the deformation of the film is reduced.

According to a preferred embodiment of the present invention, a method of cutting a film comprises the steps of preparing a moving die and a fixing die; Setting a moving distance of the moving die; Providing a fabric film attached to the base film; And moving the upper die to cut the fabric film into a defined shape, the movement distance of the die being determined based on the thickness of the fabric film and the upper die being continuously moved up and down, Cut the film.

According to another preferred embodiment of the present invention, a die cutting press machine comprises a moving die to which a cutter is attached; A fixed die disposed to face the mobile die; A moving plate; A fixed shaft connecting the movable die and the movable plate; A rotating unit operated by a driving device; And a balancing unit for transmitting the movement of the operating unit to the moving plate.

According to another preferred embodiment of the present invention, the balance unit becomes a cam ball.

According to another preferred embodiment of the present invention, the moving plate further includes a height adjusting unit for adjusting the height.

The cutting apparatus according to the present invention has the advantage that the film is continuously cut at a high speed. Also, it has an advantage that the quality of the cut film can be improved by reducing the deformation of the film in the cutting process and cutting the film into a predetermined standard.

Fig. 1 schematically shows an embodiment of a cutting method according to the present invention.
Figures 2a, 2b and 2c show an embodiment of a die-cutting press machine according to the invention.
Figure 3 shows an embodiment of a film being cut by a die-cutting press machine according to the invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the accompanying drawings, but the present invention is not limited thereto. In the following description, components having the same reference numerals in different drawings have similar functions, so that they will not be described repeatedly unless necessary for an understanding of the invention, and the known components will be briefly described or omitted. However, It should not be understood as being excluded from the embodiment of Fig.

Fig. 1 schematically shows an embodiment of a cutting method according to the present invention.

Referring to FIG. 1, a cutting method according to the present invention includes: preparing a moving die and a fixing die (S11); Setting a moving distance of the moving die (S12); (S13) supplying a raw film attached to the base film; And a step (S16) of cutting the raw film in a predetermined shape by moving the moving die, wherein a moving distance of the moving die is determined based on a thickness of the raw film, and the moving die continuously moves up and down The raw film can be cut.

The cutting method according to the present invention can be applied to, for example, cutting a protective film, an adhesive film, or an optical film, but is not limited thereto, and can be applied to cutting any material having a thin film shape and cutting into a predetermined shape. For example, the cutting method according to the present invention can be applied to the cutting of a synthetic resin, a metal thin film or a paper material, and the present invention is not limited by the cutting material.

The cutting method according to the present invention can be performed by a pressing method. The press method refers to cutting the film placed on the fixed die by applying a constant pressure to the moving die. The moving die and the fixing die may have a planar structure facing each other, and at the same time, a predetermined portion of the film may be cut into a certain shape by the cutter while applying pressure to the entire plane. The advantage of the press system is that the film transfer and cutting can be carried out at the same time, thereby enabling a continuous process. In the press method, it is necessary to be applied to a structure having a high resistance against pressure as a whole, while the height and the pressure can be precisely controlled. And a die needs to be prepared separately.

For application of the method according to the present invention, a fixed die and a moving die should be prepared (S11). The stationary die and the moving die may have, for example, a plane facing each other, and a cutter plate may be arranged on the moving die. The cutter plate may have a structure that allows the film to be cut in a predetermined shape. On the other hand, the upper portion of the fixed die needs to have a planar structure having a constant flatness. The flatness or flatness level of the fixed die can be determined, for example, by the thickness of the film to be cut. For example, the level of flatness of the stationary die should be small relative to the film thickness and may be, for example but not limited to 1/1000 to 5/6 of the film thickness.

The prepared moving die and the fixed die may be arranged to face each other and the moving distance of the moving die must be set for cutting (S12). The moving distance of the moving die means the moving distance of the moving die, and should be determined based on the thickness of the film and the thickness of the base film or substrate. Preferably, the moving distance of the moving die should be set so as to move from the fixed die to a position corresponding to the thickness of the base film or substrate. For example, if the thickness of the base film or base material is 0.1 mm, the moving distance of the moving die may be set so as to approach from the fixed die to the corresponding distance. The setting of the moving distance in this way means the setting of the relative distance of approach between the fixed die and the moving die. And the setting of the moving distance can be determined based on the thickness of the base film or the base material.

When the movement distance is set, the raw film can be fed (S13). The fabric film can be fed while being wound on a device such as a reel. The fabric film may be combined with the base film or the base material while being supplied (S14), and the base material may be supplied to the stationary die in a state in which the base material is combined. The supply of the fabric film and the base film may be done, for example, using two reels, or in an endless loop manner. When two reels are used, one reel feeds the fabric film and the other reel is fed in front of the fixed die while feeding the substrate. The infinite loop means that the base material is fed along a conveyor rotating in a loop form, or a base film or a thin film having a base material function is supplied. At the front of the moving die, the base film can be combined with the fabric film and can be transported to the moving die in a combined state.

The fabric film and the substrate can be moved to the fixed die in a bonded state by suitable transport means such as, for example, a conveyor or a roller. When the fabric film is moved to a fixed position of the fixed die, the movable die may move according to the set distance. In other words, the moving die descends downward toward the fixed die, and the raw film can be cut into a predetermined shape (S16). The cutting or cutting is set to cut the raw film except the substrate. For this, the whole moving die is pressed while applying pressure to the raw film, and the raw film can be cut by the cutter. To this end, the cutter may protrude from the lower surface of the moving die so as to correspond to the thickness of the raw film excluding the substrate. On the other hand, the substrate may be made of a material having a high hardness, which is not stretchable, and may be, for example, a paper thin film or a resin thin film having no stretchability. However, since the flatness and height of the moving die can be suitably adjusted, the present invention is not limited by the type of substrate.

Cutting can be done in the process of moving the fabric film or in a stationary state and can be done continuously. The number of times of cutting may be determined by the number of times of descent of the moving die, and the number of times of descent may be, for example, 20 to 500 times per minute, but is not limited thereto. On the other hand, the number of the raw film cut by cutting at one time can be appropriately determined according to the size of the lower plane of the moving die.

When the cutting is completed, the remaining portion may be removed (S17). The remainder refers to the remaining portion of the fabric film that has been cut. However, the removal process of the residual portion is not necessarily required. Depending on the application of the film or the cutting form, the fabric film may be wound on the reel with the substrate while maintaining the cut film (S18). The fabric film wound on the reel can then be transferred to the production site.

The embodiment shown in FIG. 1 is illustrative and the cutting method according to the present invention can be performed in various ways, and the present invention is not limited to the embodiments shown.

An embodiment of a die-cutting press machine which can be applied to the method according to the present invention will be described below.

Figures 2a, 2b and 2c show an embodiment of a die-cutting press machine 20 according to the invention.

Fig. 2a is a side view of the press machine 20 according to the invention, Fig. 2b is a front view of the press machine, and Fig. 2c is an embodiment of a discharge module of a textile film which can be applied to the press machine 20 according to the invention, Respectively.

2A and 2B, a die cutting press machine 20 according to the present invention includes a moving die 212 to which a cutter is attached; A fixed die 213 disposed to face the moving die 212; A moving plate 223; Fixing shafts 224a and 224b connecting the moving die 212 and the moving plate 223; A rotating unit 222 operated by a driving device 221; And a balancing unit 23 for transferring the movement of the operation unit 222 to the moving plate 223.

The die cutting press machine 20 according to the present invention can be composed of an input module, a cutting module, and an ejection module, and can optionally include a reel for inputting and ejecting a fabric film. Die cutting press machine 20 can be used to cut various forms of thin film into a certain shape and can be used, for example, to cut a protective film, adhesive film or optical film into a certain shape. The die cutting press machine 20 is described herein as including an input module or an ejection module or including a device related to cutting.

The press machine 20 may comprise a cutting module 21 for cutting and a drive module 21 for driving the cutting module 21. The cutting module 21 may comprise a moving die 212 arranged to be movable up and down and a cutter 212 disposed on the lower surface of the moving die 212. The fixed die 213 is installed to face the moving die 212 and may be provided with a contact plate 213a on the surface of the moving die 212 as necessary.

The moving die 212 can be moved up and down and the cutter 212a can be formed to cut the film into the desired shape. The cutter 212a may be integrally formed with the moving die 212 while forming the lower surface of the moving die 212, but is preferably separately manufactured and secured to the lower side of the moving die 212 by fastening means such as, for example, To be detachable. The fixed die 213 is disposed to face the moving die 212 and can form a transport path of the film. The fixed die 213 can be made of a material or structure that can be fixed by a suitable frame and can withstand a certain amount of pressure. The contact plate 213a may be integrally formed with the fixing die 213 or may be separately manufactured and joined to the upper surface of the fixing die 213. [

It is advantageous that the lowest descent position of the moving die 212 can be predetermined and the distance between the fixed die 213 and the lowest position of the moving die 212 is uniform as a whole. To ensure such uniformity, it is advantageous that the flatness or roughness of the lower surface and the upper surface of the moving die 212 and the fixing die 213 are adjusted, for example. Alternatively, the cutter 212a and the contact plate 213a may be made of a hard material. In addition, the lower surface of the moving die 212, the upper surface of the fixed die 213, the surface of the cutter 212a or the surface of the contact plate 213a may be anodized or an insulating coating or an anti-slip coating have. Or the moving die 212 or the fixed die 213 may be grounded. Such anodizing, insulating coating, anti-slip coating or grounding may have the function of improving the flatness while at the same time removing the static charge generated during the cutting or contacting process.

A driving device 221 such as a servo motor may be installed to generate power for movement of the moving die 212. The rotational power of the drive 221 may be transmitted to the rotational unit 222 of the crank-shaft assembly by means of power transmission means 222a, for example a belt or a gear. The positioning unit 225a may be installed at an appropriate position, for example, an intermediate portion of the rotation unit 222. [ The position setting unit 225a can be installed so as to be movable in the left and right direction in the rotation unit 222 at the same time as being fixed at a predetermined position and rotated together with the rotation unit 222. [ The link unit 225 may be coupled to the position setting unit 225a. The link unit 225 may have a function of transmitting the rotational motion of the rotation unit 222 or the positioning unit 225a to the balance unit 23. [ Balancing unit 226 may also be coupled to the lower portion of link unit 225. [ The balancing unit 226 may have a structure that is open to accommodate, for example, a portion of the sphere in the lower portion. And an inclined surface may be formed inwardly at the lower end of the balance forming unit 226. [

The balancing unit 23 is connected to the link unit 225 or the balance forming unit 226 and has a function of causing the rotational motion of the rotating unit 222 to be converted into up-down motion. At the same time, the balancing unit 22 can be set to perform the up-and-down movement at the position defined by the balancing unit 226. [ For example, the balancing unit 23 may be a device such as a cam ball and a portion of the ball portion on the upper side may be coupled to the balancing unit 226 to prevent displacement.

The connecting shaft 23a coupled to the balancing unit 23 can be connected to the moving plate 223. [ By this connection, the rotational motion of the rotating unit 222 can be converted into the upward / downward movement of the moving plate 223.

The moving plate 223 may be of a rectangular plate shape, but is not limited thereto and may be any shape known in the art. Fixing columns 224a and 224b may be provided on the moving plate 223 and may be connected to a press unit 212b coupled to the upper side of the moving die 212. [ The moving plate 223 may be a rectangular plate and four fixed columns 224a and 224b may be provided at four corners and connected to the press unit 212b. The press unit 212b and the moving die 212 may be integrally formed and integrally formed with the moving plate 223 by the fixing shafts 224a and 224b. In this structure, when the rotation unit 222 is rotated by the driving device 221, the moving plate 223 moves up and down, and then the moving die 212 moves up and down in the direction indicated by the arrow M .

The height of the moving plate 223 can be adjusted by the height adjusting unit 24 and guide units 25a and 25b for guiding up and down movement of the moving plate 223 may be provided as necessary. The guide units 25a and 25b can be, for example, linear guides or cylinders and the height adjustment unit 24 can adjust the relative height of the moving plate 223 relative to the frame or fixed axes 224a and 224b Which can be any device known in the art. The buffering means 26a and 26 may be provided below the moving plate 223 so as to be connected to the lower side of the moving plate 223 or the fixing shafts 224a and 224b as necessary. The buffering means 26a and 26b have a function of allowing the moving plate 223 to stably move up and down while balancing the different points. The buffer means 26a, 26b may be, for example, in the form of a cylinder with a spring disposed therein, and a piston structure may be formed below the moving plate 223. [

The base frame B can be disposed under the press machine 20 and the press machine 20 can be structured to be movable by the caster R fixed to the lower side of the base frame B. [

In the embodiment shown in Figs. 2A and 2B, the number of times the movable die 212 is lifted and lowered can be appropriately adjusted by adjusting the rotational speed of the drive device 221 such as a servo motor. On the other hand, by precisely adjusting the height of the moving plate 223, the spacing distance between the moving die 212 and the fixed die 213 can be properly set.

Various moving structures can be applied to the press machine 20 according to the present invention and the present invention is not limited to the embodiments shown.

The raw film cut at the press machine 20 can be discharged through the discharge module.

2C shows an embodiment of a drain module 30 that may be applied to a die cutting press machine 20 according to the present invention.

2C, the discharging module 30 includes a pair of pressing units 31, a conveying shaft 32a formed at the front side of the pressing unit 31, a conveying shaft 32a disposed at a position facing the conveying shaft 32a, A feed unit 32b for feeding the raw film, a servo roll 33a and 33b for feeding the raw film fed from the feed unit 32b at a predetermined feed speed, and a feed roller 34. [

The cutting film cut in a predetermined shape can be brought close to the bottom surface of the conveying path by the pressurizing unit 31 and can be conveyed to the conveying unit 32b. The transfer unit 32 may be provided with a separation unit 321 capable of moving up and down along the transfer axis 32a and the remaining part may be removed by the separation unit 321. [ The separation unit 321 may be installed to move left and right along the feed axis 32a. Thereafter, the cutting film may be fed to the feed roller 34 via the servo rolls 33a and 33b and wound on the reel.

The servo rolls 33a and 33b may have a function of adjusting the tension of the cutting film while adjusting the position of the separation unit 321 on the feed axis 32a as necessary.

The exhaust module 30 may have a variety of structures and the present invention is not limited to the embodiments shown.

By the cutting die press machine according to the present invention, various films or thin films can be cut into a predetermined shape.

Figure 3 shows an embodiment of a film being cut by a die-cutting press machine according to the invention.

Referring to FIG. For example, the adhesive film 42 can be laminating to the substrate 41 and various cut shapes 43 can be made by the cutting press machine. The cutter installed on the moving die described above can approach the fixed die to be cut at the cutting depth (H). However, the cutting depth H may be set to be slightly larger than the adhesive film 42.

The cutter may be designed so that the various types of film or film have various cut shapes 43 and the present invention is not limited to the embodiments shown.

The cutting apparatus according to the present invention has the advantage that it is cut at a high speed continuously in the film. Also, it has an advantage that the quality of the cut film can be improved by reducing the deformation of the film in the cutting process and cutting the film into a predetermined standard.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention . The invention is not limited by these variations and modifications, but is limited only by the claims appended hereto.

20: die cutting press machine
21: cutting module 22: drive module
212: moving die 212a: cutter
212b: press unit 213: fixed die
213a: contact plate 221: driving device
222: rotation unit 222a: power transmission means
223: moving plate 224a, 224b: fixed shaft
23: Balancing unit 23a:
225: Link unit 225a: Position setting unit
226: Balancing unit 25a, 25b: Guide unit
26a, 26b: buffer means
30: exhaust module 31: pressure unit
32a: Feed shaft 32b: Feed unit
33a, 33b: Servo roll 34: Feed roller
321: Separation unit
41: Base material 42: Adhesive film
43: Cutting shape

Claims (1)

A moving die 212 to which a cutter is attached;
A fixed die 213 disposed to face the moving die 212;
A moving plate 223 of a rectangular plate shape;
Four fixed shafts 224a and 224b connecting the four corners of the moving die 212 and the moving plate 223;
A rotating unit 222 which is operated by the driving device 221 and moves the moving plate 223 up and down;
A separation unit (321) for removing the remaining portion from the cut film cut into a shape defined by the cutter;
A positioning unit 225a capable of being horizontally moved in the middle of the rotation unit 222 and rotated together with the rotation unit 222;
A balance unit (23) for converting the rotary motion of the rotary unit (222) into a vertical motion;
A link unit 225 for transmitting rotational motion of the position setting unit 225a to the balance unit 23; And
And a balance forming unit (226) coupled to a lower portion of the link unit (225)
The balancing unit 23 is a cam ball and a part of the upper ball portion is coupled to the balancing unit 226 to move up and down at a predetermined position and connected to the moving plate 223 through the connecting shaft 23a So as to convert rotational motion of the rotation unit 222 into up-down motion; Wherein the balance forming unit (226) has an open structure to allow a part of the spherical shape to be received, and an inclined surface is formed inwardly at the lower end portion so as to prevent positional deviation.

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