JP2012240196A - Slitter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a slitter that minimizes loss of a film by preventing a pore and a secondary pore in a wrinkle state from being generated.SOLUTION: The slitter includes: an unwinding part from which an insulating film is consecutively taken out; a plurality of transfer rollers that transfer the insulating film supplied from the unwinding part in one direction; a wheel knife that senses an air pocket formed on the insulating film taken out from the unwinding part to form fine holes on the insulating film; a cutter that is disposed between the transfer rollers and cuts, at a certain interval, the insulating film transferred in one direction through the transfer roller; and a winding part individually winding the insulating film divided at the certain interval by the cutter.

Description

  The present invention relates to a slitter capable of removing bubbles on a film surface, and more particularly, a slitter that removes air pockets generated in a build-up film for embodying a fine circuit of a substrate by rotating blades connected in parallel. About.

  Recently, with the progress of downsizing and multi-functionalization of portable digital electronic devices such as IT devices, parts attached to the digital electronic devices are required to have high density and high specifications for downsizing.

  In particular, in the case of a printed circuit board (PCB), an insulating film is used to build up a multilayer structure for thinning and densification in order to realize high specifications, and to develop a fine circuit.

  The insulating film for buildup is coated with a cover film on a carrier film using a coating apparatus, the insulating film coated on the entire surface is cut into an appropriate width with a slitter, and individually wound on a roll, Applies to the next step.

  In this case, fine bubbles may be generated between the carrier film and the cover film in the process of coating the insulating film, and the fine bubbles pass through the film transfer roller of the slitter and relatively large pores (air pocket). And the pores act as negative elements on the surface of the insulating film.

  In this way, in order to remove pores generated while passing through the roller at the work site, the air in the bubbles passes through the roller by cutting the cover film using a cutter or knife before passing through the roller. While being able to be discharged outside, the generation of pores can be prevented.

  However, at the work site, since the operator forms a cutting line on the insulating film that is manually roller-transferred, accurate positioning is difficult, and it is impossible to find and cut bubbles sporadically generated on the insulating film one by one. Therefore, the problem that the loss of an insulating film generate | occur | produces has been raised.

  In addition, even if the cutting line is formed in front of the bubbles generated on the insulating film, there is no choice but to form the cutting line depending on the manual work. Since the air may flow through the cutting line while the cutting line passes through the roller, there is a disadvantage that wrinkle-like secondary pores may be generated.

  In addition, forming the cutting line depending on the operator cannot adjust the cutting depth using a cutter or knife, so the cutting line may be formed not only on the cover film but also on the carrier film. There may be a problem that the loss of the insulating film may increase.

JP 2005-230968 A

  Accordingly, the present invention has been derived to solve the various disadvantages and problems raised from the conventional bubble removal method, and is produced in a build-up film for embodying a fine circuit on a substrate. Air bubbles can be removed using a rotary blade installed in front of the roller, thereby preventing the generation of pores and wrinkle-like secondary pores and minimizing film loss. It is an object of the invention to provide a slitter.

  The object of the present invention is to take out the unwinding part from which the insulating film is continuously taken out, a plurality of transfer rollers for transferring the insulating film provided from the unwinding part in one direction, and the unwinding part. Air bubbles formed in the insulating film are detected, and the insulating film which is positioned between the rotary blade that forms fine holes on the insulating film and the transfer roller and is transferred in one direction by the transfer roller is fixed. This can be achieved by providing a slitter that includes a cutter that cuts at intervals, and a winding unit that individually winds up the insulating film divided at regular intervals by the cutter.

  The unwinding portion is provided so that the insulating film can be provided while being rotated, and the insulating film in which the cover film is coated on the carrier film in the previous step is taken out in one direction. To be able to.

  The slitter may further include a support roller between a plurality of transfer rollers, and the cutter may be positioned on the support roller to cut the insulating film passing through the support roller.

  Meanwhile, the plurality of transfer rollers can be divided into a first transfer roller and a second transfer roller, and the insulating film taken out from the unwinding unit is transferred by the first transfer roller, and the support roller The insulating film cut by the cutter while passing can be transferred to the winding unit by a second transfer roller.

  The rotary blade may be provided in front of the first transfer roller, and the slitter that forms fine holes on the insulating film by the rotary blade has air bubbles on the insulating film taken out from the unwinding portion. A detecting unit for detecting the air, a control unit for controlling the driving of the rotary blade when bubbles are detected on the insulating film, and a driving unit for rotating the rotary blade by a drive signal of the control unit, Can be included.

  In addition, the rotary blade is usually positioned at a predetermined distance from the upper surface of the insulating film, and when air bubbles are detected by the detection unit, the rotary blade is driven to rotate and moved to the upper surface side of the insulating film at the same time. Allow the surface cutter to contact the top surface of the insulating film.

  At this time, the rotary blade can rotate in the same direction as the direction in which the insulating film is taken out to form a large number of fine holes on the insulating film in which bubbles are detected.

  As described above, the slitter of the present invention can prevent pores and air wrinkles from being generated on the insulating film passing through the transfer roller by forming fine holes on the insulating film by the rotary blade. There is an advantage.

  In addition, the loss of the insulating film can be reduced, and the substrate can be manufactured by the insulating film from which the pores are removed, so that the yield of the substrate product can be improved and the product reliability can be improved. It is possible to exert the effect of being able to.

It is a top view of the slitter at the time of forming the micropore of the insulating film by the slitter by this invention. It is a block diagram of the slitter by this invention. It is sectional drawing of the rotary blade used for the slitter of this invention.

  Matters relating to the operational effects including the technical configuration of the slitter according to the present invention will be clearly understood from the following detailed description based on the drawings in which the preferred embodiments of the present invention are illustrated.

  First, FIG. 2 is a configuration diagram of the slitter according to the present invention, FIG. 1 is a plan view of the slitter when forming the fine holes of the insulating film by the slitter according to the present invention, and FIG. 3 is the slitter of the present invention. It is sectional drawing of the rotary blade used.

  As illustrated, the slitter 100 according to the embodiment of the present invention includes an unwinding unit 110 provided with an insulating film 101 and a cutter 130 while the insulating film 101 taken out from the unwinding unit 110 is transferred in one direction. And a winding unit 120 that is cut at regular intervals and wound individually.

  In addition, a plurality of transfer rollers 141 and 142 are provided between the unwinding unit 110 and the winding unit 120, and the insulating film 101 taken out from the unwinding unit 110 is transferred, and between the plurality of transfer rollers 141 and 142. In addition, a support roller 150 may be further provided to mesh with the transfer rollers 141 and 142 as the transfer direction of the insulating film 101 is changed so that the insulating film 101 is smoothly transferred.

  At this time, a cutter 130 that is rotationally driven may be provided on the support roller 150 so that the insulating film 101 transferred in close contact with the support roller 150 is continuously cut at regular intervals. can do.

  A plurality of the cutters 130 are coupled to the support base 131 in a parallel manner, and the insulating film 101 transported by the transport rollers 141 and 142 can be cut so as to be divided at a predetermined interval. Can be appropriately adjusted according to the cutting interval of the insulating film 101.

  Thus, the insulating film 101 cut by the cutter 130 while being transferred by the transfer rollers 141 and 142 is wound up as individual products in the winding unit 120 divided into a large number of pieces, and is wrapped when the winding is completed. Thereafter, it can be shipped as a product or incorporated into the next substrate manufacturing process.

  On the other hand, the unwinding part 110 is provided so that the insulating film 101 can be provided while being rotated, and is taken out in one direction with the cover film covered on the carrier film in the previous process. Since the insulating film 101 may include bubbles 102 of various sizes when the cover film is coated on the carrier film, the insulating film 101 may include the plurality of transfer rollers 141 and 142. Air pockets or air wrinkles may be formed while passing through the front first transfer roller 141, resulting in defects.

  Accordingly, in order to allow the bubbles 102 on the surface of the insulating film 101 to be removed while passing through the first transfer roller 141, the rotary blade 160 is provided in front of the first transfer roller 141.

  The rotary blade 160 may be formed of a single cylindrical body or a large number of disks, and a large number of cutters 161 may be formed on the outer peripheral surface.

  The rotary blade 160 is rotated in the same direction as the transfer direction of the insulating film 101 and can be rotated at the same speed as the transfer speed of the insulating film 101, and the cutter 161 on the outer peripheral surface is rotated by the rotation of the rotary blade 160. The fine holes 103 can be formed on the insulating film 101 by being in contact with the upper surface of the insulating film 101.

  The insulating film 101 in which the fine holes 103 are formed is pressed at the same time as the upper surface is transferred while passing through the first transfer roller 141, so that the air filled in the bubbles 102 is exposed to the outside through the fine holes 103. It can be discharged and no more pores or air wrinkles can be formed.

  At this time, the rotary blade 160 is maintained in a state of being spaced apart from the upper surface of the insulating film 101 at a predetermined interval, and when the bubble 102 is detected on the insulating film 101 taken out from the unwinding portion 110, it is shown in FIG. As described above, when the rotary blade 160 is moved to the upper surface side of the insulating film 101, the cutter 161 on the outer peripheral surface of the rotary blade 160 can be brought into contact with the insulating film 101.

  As described above, the rotary blade 160 configured as described above can be driven only when the bubble 102 formed on the insulating film 101 is detected. Therefore, the slitter 100 to which the rotary blade 160 is attached has a detection unit 170 that detects the bubbles 102 formed on the insulating film 101, a drive unit 190 that rotationally drives the rotary blade 160, and a detection signal from the detection unit 170. And a control unit 180 that controls the driving unit 190.

  When the insulating film 101 is supplied from the unwinding unit 110, the air bubble 102 on the insulating film 101 is detected by the detecting unit 170 provided in the slitter 100, and at the same time the air bubble 102 is detected, the control unit 180 and the rotary blade 160 are detected. A control signal for driving is applied.

  Since the control signal of the control unit 180 is applied to the drive unit 190, the rotary blade 160 is rotationally driven by the drive signal of the drive unit 190 controlled by the control unit 180, and at the same time, the position of the rotary blade 160 is varied. By doing so, the rotary blade 160 can be moved to the insulating film 101 side.

  The bubbles 102 formed on the insulating film 101 by the slitter 100 configured as described above are microscopic holes formed by the rotational driving of the rotary blade 160 before passing through the first transfer roller 141 of the transfer rollers 141 and 142. 103, the rotary blade 160 can be removed while passing through the first transfer roller 141, and the rotary blade 160 is selectively driven after detecting the bubbles 102 by the detection unit 170, the control unit 180, and the drive unit 190. be able to.

  The insulating film 101 from which the bubbles 102 have been removed while passing through the first transfer roller 141 is cut at regular intervals by a cutter 130 provided on the support roller 150, and the cut insulating film 101 is transferred to the second transfer roller 141. It can be rolled up individually through the rollers 142 and shipped as a product.

  The preferred embodiments of the present invention described above are disclosed for the purpose of illustration, and those skilled in the art to which the present invention belongs will not depart from the technical idea of the present invention. Various substitutions, modifications, and alterations are possible within the scope, and such substitutions, modifications, and alterations should fall within the scope of the appended claims.

DESCRIPTION OF SYMBOLS 101 Insulating film 110 Unwinding part 120 Winding part 130 Cutter 141, 142 Transfer roller 150 Support roller 160 Rotary blade 170 Detection part 180 Control part 190 Drive part

Claims (7)

An unwinding part from which the insulating film is continuously taken out;
At least one transfer roller for transferring the insulating film provided from the unwinding portion in one direction;
A rotating blade that detects air bubbles formed in the insulating film taken out from the unwinding portion and forms fine holes on the insulating film;
A cutter that cuts the insulating film transferred in one direction by the transfer roller at regular intervals;
A slitter including: a winding unit that individually winds up the insulating film divided by the cutter at regular intervals.   The said transfer roller contains the 1st transfer roller which transfers the insulating film taken out from the said unwinding part, and the 2nd transfer roller which transfers the said insulating film cut | disconnected by the said cutter. Slitter.   3. The slitter according to claim 2, further comprising a support roller that is positioned between the first transfer roller and the second transfer roller and is engaged with the first transfer roller and the second transfer roller to transfer the insulating film.   The slitter according to claim 3, wherein the support roller cuts the insulating film passing through the support roller with the cutter positioned at an upper portion.   2. The slitter according to claim 1, wherein the rotary blade is provided in front of the first transfer roller and forms a large number of fine holes on the insulating film while rotating in the same direction as the direction of taking out the insulating film.   The slitter detects a bubble on the insulating film taken out from the unwinding unit, and a control unit controls the driving of the rotary blade when the bubble is detected on the insulating film. The slitter according to claim 1, further comprising: a drive unit that rotationally drives the rotary blade by a drive signal of the control unit.   The rotary blade is positioned at a predetermined distance from the upper surface of the insulating film, and when air bubbles are detected by the detection unit, the rotary blade is driven to rotate and simultaneously moved to the upper surface side of the insulating film to be a cutter on the outer peripheral surface. The slitter according to claim 5, which is in contact with the upper surface of the insulating film.

Images