JP2005324315A - Cutting device of slitter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cutting device of a slitter cutting and rewinding a wide roll stock such as a plastic film or a metal deposition film for a capacitor, and making a section area of a plastic film have a constant wave shape. <P>SOLUTION: A plurality of circular cutters 220 are arranged and fixed through fixed holes 221 on a fixed shaft 210 on a cutting machine 200, the cutters 220 are formed to be curved at a specified angle θwith a central line C1 on one side surface as its reference, and the cutting machine 200 is constituted so that a form of the cutting surface is formed in a sine waveform curve in cutting a film F as it is connected to an electric motor 260 free to control speed and revolved by it, in the slitter 100 on which the films Fa, Fb are cut out fine at specified intervals from the wide film roll stock F and the cut out films Fa, Fb are respectively taken up via travelling on a roller on first and second take-up shafts 130a, 130b horizontally moved in accordance with take-up quantity. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a slitter that cuts and winds a wide fabric such as a plastic film for a capacitor or a metal-deposited film for a capacitor, and more particularly, by cutting the film fabric so that the cut surface has a constant curved shape. The present invention also relates to a slitter cutting apparatus that greatly improves the performance of the capacitor by increasing the surface area of the metal contact portion formed on the curved cut surface during the subsequent manufacture of the capacitor.

    A conventional configuration of a known slitter will be described with reference to the accompanying drawings.

  FIG. 1 is a schematic view showing a conventional slitter 100. The slitter 100 is a cutting machine in which a film fabric (F) wound around an unwinder 110 formed on one side runs through a number of rollers. An apparatus in which the cut film is wound around the first and second winding shafts 130a and 130b that are finely cut at predetermined intervals through 120, and then run again on the roller and move horizontally according to the winding amount. is there.

  More specifically, the film dough (F) supplied from the unwinder 110 is guided to the winding unit guide roller 111, and LFC (Line Flowing Control) sensing provided on one side of the winding unit guide roller 111 is detected. Head to roller 112.

  The LFC detection roller 112 detects the margin portion of the film fabric (F) by an LFC detection sensor 112a provided on the LFC detection roller 112, and moves the margin in the horizontal direction in conjunction with a hydraulic pressure or a motor actuator (not shown). It corrects, and it is comprised so that it may drive | work rapidly, without flowing from the tension detection roller 113 after.

  The film fabric (F) is an extract that corrects the contraction in the width direction due to the tension during the travel after the tension is set by the detection roller 113 that detects the tension while the film fabric (F) is unwound from the unwinder 110 and travels. Passing through the panda roller 114, passing through the guide roller 115 and the like, enclosing the pair of cutting rollers 114, 114.

  The film dough (F) is cut into a predetermined size through a cutting machine 120 located above the cutting rollers 114 and 114, and half of the film is alternately turned through an upper conveying roller 118a and an upper contact roller 117a provided on the upper side. It is configured to be wound around a first winding shaft 130a provided so as to be movable, and the rest is wound around a second winding shaft 130b through a lower conveying roller 118b and a lower contact roller 117b.

  The first and second take-up shafts 130a and 130b on which the films Fa and Fb cut by the cutting machine 120 are taken up are first formed horizontally on the other side of the slitter 100 as shown in FIG. And it is moved horizontally from the second guides 100a, 100b. That is, the first winding shaft 130a is provided on a fixing bracket 150a fixed to a guide member 160a reciprocally moved by a guide bar 140a provided on the upper and lower sides of the first guide 100a.

  The second winding shaft 130b is provided on a fixing bracket 150b fixed to a guide member 160b reciprocally moved by a guide bar 140b provided above and below the second guide 100a.

  The fixing brackets 150a and 150b to which the first and second winding shafts 130a and 130b are fixed are rods of cylinders 170a and 170b fixed to the bottoms of the first and second guides 100a and 100b, respectively. It is fixed and configured to move forward by actuation of cylinders 170a, 170b.

  That is, while the cut films Fa and Fb are wound around the first and second winding shafts 130a and 130a, the films Fa and Fb are wound to a certain diameter after being moved to one side. Then, the operator separates the cut and wound films Fa and Fb from the first and second winding shafts 130a and 130b, and then operates the cylinders 170a and 170b to operate the first and second winding shafts 130a. , 130b is moved forward (moved to the original position).

The cutting machine 120 of the slitter 100 constructed and operated in this way is shown in detail in FIG.

  As shown, a conventional cutting machine 120 is configured such that a plurality of cutters 122 are arranged and fixed to a fixed shaft 121 at predetermined intervals.

  The distance between the cutter 122 and the cutter 122 can be arbitrarily changed to determine the width of the film to be cut.

  The cutting machine 120 is positioned above the pair of cutting rollers 116 and 116 and is configured to cut the film dough F that floats and passes through the upper space between the cutting rollers 116 and 116.

  The cutting machine 120 is configured to be brought into and out of contact with the film fabric (F) passing between the cutting rollers 116 and 116 by an ascending / descending device (not shown).

  However, the configuration of the cutting machine 120 and the film cutting method using the cutting machine 120 have a structure in which the shape of the cut surface of the film dough (F) always has a straight line.

  The present invention has been devised to improve such a conventional cutter and the cutting method thereby, and the production of a uniform capacitor deposited film.

  In general, a vapor deposition film capacitor is made by wrapping a metal such as aluminum or zinc on an extremely thin film several tens to several hundreds of times, spraying the metal on both sides to form electrodes, and placing it in a case made of a synthetic resin material. It is configured by sealing with resin, and both side electrodes of the metal spraying of the capacitor are important for the performance of the capacitor.

  However, looking at the winding structure of the film when manufacturing the capacitor, the section cut by the cutting machine is always a straight line, so the contact cross-sectional area of the electrode parts on both sides is limited, improving the performance of the capacitor. There was a limit to doing it.

  The present invention has been devised in order to solve the above-described problems, and its purpose is to cut the film dough, cut the cut surface so as to have a constant curved shape, and subsequently manufacture a capacitor. An object of the present invention is to provide a slitter cutting apparatus in which the performance of the capacitor is greatly improved by increasing the surface area of the metal contact portion formed on the curved cut surface.

  Another object of the present invention is to provide a slitter cutting apparatus in which the cut surface of the film dough has a constant curved shape, and the curved shape can be variably processed.

  In order to achieve the above-described object, the present invention provides a film fabric wound around an unwinder formed on one side while passing through a number of rollers, and is provided on a pair of cutting rollers and above the pair of cutting rollers. In the slitter in which the cut film is wound around the first and second winding shafts that are finely cut at a predetermined interval via a cutting machine and moved horizontally by the winding amount again. The cutting machine is formed such that a plurality of circular cutters are arranged and fixed to a fixed shaft at fixed intervals via a fixing hole, and the cutter is formed to bend at a constant angle with respect to one side center line. When the film is cut by being connected to and rotated by an electric motor capable of forming a sine wave shape, It has the features.

  As described above, the present invention cuts the film dough so that the cut surface has a constant curved shape. When the wire is wound, the metal contact portion (curve) formed on the curved cut surface becomes wider and the contact resistance is lowered, so that the performance of the capacitor is improved.

  Further, the present invention has an advantage that the cut surface of the film dough has a constant curved shape, and the curved shape can be variably processed.

  Hereinafter, a preferred embodiment of a slitting apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 4 is a schematic view of a slitter to which the cutting device according to the present invention is applied, and FIG. 5 is a specific perspective view of the slitter cutting device according to the present invention.

  According to the figure, the film fabric (F) wound around the unwinder 110 formed on one side runs while passing through a number of rollers, and passes through the pair of cutting rollers 116 and 116 and the cutting machine 200 at a predetermined interval. The slitter 100 is applied to a slitter 100 in which the cut films Fa and Fb are wound around the first and second winding shafts 130a and 130b that are finely cut and then traveled on rollers and moved horizontally by the winding amount. In the cutting machine 200 of the present invention, a plurality of circular cutters 220 are arranged and fixed to a fixed shaft 210 at predetermined intervals through fixing holes 221 so that the cutter 220 bends at a certain angle with respect to the central axis. It will be.

  The cutting machine 200 is provided at an upper portion of the pair of cutting rollers 116 and 116 so as to keep a certain distance, and cuts the film fabric (F) that floats in the upper space between the cutting rollers 116 and 116. Composed.

  The cutter 200 is configured to come into contact with or separate from the film fabric (F) passing between the cutting rollers 116 and 116 by an ascending / descending device (not shown) (see FIG. 6).

  The cutting machine 200 is connected to a speed-controllable electric motor 260 by a coupling (not shown) or respective pulleys 230 and 250 and a belt 240, and the power of the electric motor 160 is transmitted to rotate. The rotational speed of the cutting machine 200 can be adjusted by adjusting the rotational speed (RPM) of the electric motor 260.

  The cutter 220 of the cutting machine 200 according to the present invention will be described in detail with reference to FIGS. 7a to 7c.

  First, the circular cutter 220 is formed to bend at a constant angle (θ) with respect to the center line C1 on one side as shown in FIG.

  The structure of the cutter 220 is to make the shape of the cut surface into a sine wave-shaped curve when the cutter 220 rotates and cuts the film (F).

  In other words, if the cutter 220 rotates once, one sine wave curve is formed on the cut surface of the film.

  FIG. 7 b shows another embodiment of the cutter 220, which is primarily formed so as to bend at a constant angle (θ) with respect to the center line C 1 on one side of the cutter 220 and is perpendicular to the center line C 1. A secondary is formed so as to bend at a certain angle opposite to the direction bent with respect to the center line C1 with respect to the line C2.

  Therefore, when the cutter 220 having such a structure is used, if the cutter 220 rotates once, two sine wave curves are formed on the cut surface of the film.

  FIG. 7c shows still another embodiment of the cutter 220. The cutter 220 is bent at a constant angle (θ) so as to be in opposite directions with respect to a plurality of center lines (C1, C2, C3,...). When the cutter 220 is rotated once, a plurality of sine wave curves are formed on the cut surface of the film.

  Here, the description has been made in view of the case where the rotational speed of the cutting machine 200 is constant. However, when the rotational speed of the cutting machine 200 is increased or decreased, a curve formed on the cut surface of the film (F), that is, a sine wave curve. It is naturally predicted that the number (coarse density) can be changed.

  Thus, when the cut surface of the film dough (F) forms a curve, the metal contact portion (curve) formed on the cut surface of the curved shape when the deposited film is wound during the subsequent manufacture of the deposited film capacitor is widened. As a result, the contact resistance is lowered, so that the performance of the capacitor is relatively improved.

  It is applied to a slitter that cuts and winds wide fabrics such as plastic films for capacitors or metal-deposited films for capacitors.

It is the schematic which shows the conventional slitter. It is a principal part enlarged view of the said FIG. It is the perspective view which showed the cutting apparatus of the said FIG. 1 in detail. It is the schematic of the slitter to which the cutting apparatus concerning this invention was applied. It is a concrete perspective view of the slitter cutting device concerning the present invention. It is a side block diagram which shows the operating state of the slitting machine concerning this invention. It is a figure which shows the various modifications of the cutter of the cutting apparatus regarding this invention. It is a figure which shows the various modifications of the cutter of the cutting apparatus regarding this invention. It is a figure which shows the various modifications of the cutter of the cutting apparatus regarding this invention.

Explanation of symbols

100 Slitter F Film fabric 200 Cutting machine 210 Fixed shaft 220 Cutter 116 Cutting roller 230, 250 Pulley 240 Belt 250 Electric motor 221 Fixed hole

Claims (4)

A film fabric F wound around an unwinder 110 formed on one side travels through a number of rollers, and passes through a pair of cutting rollers 116 and 116 and a cutting machine 200 provided above the cutting rollers 116 and 116. In the slitter 100 in which the cut films Fa and Fb are respectively wound on the first and second winding shafts 130a and 130b that are finely cut at intervals, run on rollers again, and are horizontally moved according to the winding amount.
In the cutting machine 200, a plurality of circular cutters 220 are arranged and fixed at a predetermined interval to a fixed shaft 210 through fixing holes 221, and the cutter 220 is bent at a certain angle (θ) with respect to a center line C1 on one side. The cutting machine 200 is connected to and driven by a speed-controllable electric motor 260 so that when the film F is cut, the shape of the cut surface is formed into a sine wave-shaped curve. Slitter cutting device characterized by.   The cutter 220 is primarily formed so as to bend at a constant angle (θ) with respect to the center line C1 on one side, and is bent with respect to the center line C1 with respect to the center line C2 orthogonal to the center line C1. 2. The slitter cutting apparatus according to claim 1, wherein the slitter cutting apparatus is secondarily formed so as to bend at a predetermined angle in reverse to the direction of the slit.   The cutter 220 is bent at a predetermined angle (θ) so as to be in opposite directions with respect to a plurality of center lines (C1, C2, C3,...), And the film is cut if the cutter 220 rotates once. The slitter cutting apparatus according to claim 1, wherein a plurality of sine wave curves are formed on the surface. 2. The slitter cutting apparatus according to claim 1, wherein the cutting machine 200 and the electric motor 260 are coupled with each other by a coupling or pulleys 230 and 250 and a belt 240.

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