JP2012162293A - Device for manufacturing carrier tape, and method for manufacturing the carrier tape - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device for manufacturing a press carrier tape made of multiple paper sheets by which dimensional accuracy of each part of the tape is heightened and the shape of a recessed part protrusion section is not spoiled, and to provide a method for manufacturing a press carrier tape made of a paper sheet.SOLUTION: In the device for manufacturing the press carrier tape made of the paper sheets, in a means for slitting, in a feeding direction, a paper base material having a plurality of recessed rows press-formed by multiple press forming means, transverse shift of the paper base material during transfer by a pilot and expansion in the width direction of the paper base material caused when a blade is pressed during slitting can be prevented and dimensional accuracy of each part of the tape is heightened by providing pilots holding both ends in the width direction of the paper base material and a groove sufficiently passing the recessed part protrusion section on a die plate as shown by Fig.1 and the shape of the recessed part protrusion section can be maintained when the slitting means is transferred by the groove.

Description

  The present invention relates to a carrier tape manufacturing method for storing and transporting electronic components and a manufacturing apparatus therefor.

  Chip parts (hereinafter referred to as parts) used in electronic devices have been reduced in size and width year by year. At present, it is difficult to mount such small parts on electronic devices by hand, so an automatic mounting apparatus has been developed. However, in order to be able to attach the small parts as described above accurately and automatically in a short time using an automatic mounting device, not only the automatic mounting device but also the dimensional accuracy and strength of the carrier tape, paper dust and Quality such as lack is also a problem. Conventionally, as a paper carrier tape for storing and transporting electronic components, through holes are formed in a paper base material, and lids are attached to both sides of the base material with electronic components stored in the through holes. It has been known. In this case, the lid material is attached to both surfaces of the base material, but it is complicated to attach the lid material to both surfaces of the base material. Recently, there is a simple paper carrier tape having a structure in which a concave portion is press-formed on a paper base material by punching and a cover material is attached to only one side of the base material. Hereinafter referred to as a paper press carrier tape. In this case, it is a paper carrier tape in which small parts are stored in a number of storage recesses arranged along the feeding direction, and the surface of the storage recess is covered with a covering tape to wrap the small parts. At the same time, a row of conveying through holes for transferring the tape is formed next to the row of concave portions.

  The press molding means described above was to produce a paper press carrier tape by molding a row of recesses and through holes in the paper substrate feed direction. It is called a single press carrier manufacturing device. When molding recesses by punching from a paper substrate, the shape of the recesses is not constant due to the compressibility of the raw paper and the properties of the paper fibers, and the paper dust during molding is It has been pointed out that it adversely affects storage and mounting. Various press molding means have been developed so far to solve the above problems.

  Electronic components are becoming smaller and used in large quantities year by year, and press carrier tapes are also used in a large number of storage recesses in the width direction of wide paper base tapes in order to further increase production efficiency and reduce production costs. A paper press carrier tape is manufactured by press molding means provided with a mold for molding the paper and cutting means for cutting the paper base material in a feeding direction (called a slit) so as to have a storage recess and a through hole for conveyance. Manufacturing methods and manufacturing equipment have been investigated. A carrier tape manufacturing apparatus having means for forming a large number of storage recesses in the width direction and means for cutting is called a multiple press carrier tape manufacturing apparatus. A means for molding a large number of storage recesses in the width direction is called a multiple press molding means.

  However, in a multiple paper press carrier tape manufacturing apparatus, the distance from the side surface of the carrier tape to the center of the through hole (referred to as E dimension) and the dimensional accuracy of each part of the tape, such as the recess, are problematic. The decrease in the dimensional accuracy of the E dimension and the concave portion becomes a problem in automatic electronic component storage and mounting, and even if multiple press dies are installed, it does not necessarily lead to an improvement in manufacturing efficiency and production amount expected from the multiple. As a result of elucidating the cause of the seriousness, in the cutting means, in the width direction of the paper substrate when cutting in the feed direction by pressing the blade against the paper substrate and the horizontal deviation of the paper substrate by feeding the paper substrate It was found that the dimensional accuracy of paper press carrier tape, such as E dimension, decreased due to the spread of the paper. When the press-molded paper base material is transferred through the cutting means, a protrusion from the other bottom surface of the paper base material (hereinafter referred to as a concave protrusion) contacts the die plate surface, It was also found that the shape was damaged and the dimensional accuracy was lowered. Recently, electronic parts are further miniaturized, and further improvement in dimensional accuracy is required.

  The following are examples of problems to be solved in a press carrier tape manufacturing apparatus having five or more continuous press carriers. (1) In the cutting means, the paper base material is laterally moved by feeding the paper base material, and the dimensional accuracy such as E dimension of the paper press carrier tape is lowered as compared with a single unit. (2) When the cutting means presses the blade against the paper substrate and performs a number of cuts in the feed direction, the paper substrate spreads in the width direction and the dimensional accuracy such as E dimension of the paper press carrier tape is simply connected Compared to (3) In the cutting means, the concave projection comes into contact with the die plate, and the shape of the concave is collapsed, and the dimensional accuracy of the concave is lowered. An object of the present invention is to provide a manufacturing method and a manufacturing apparatus for solving the above-described problems and mass-producing a paper press carrier tape accurately and inexpensively using a multiple press die.

  The invention of claim 1 is a means for cutting in the feed direction a wide paper substrate in which a number of rows of recesses are formed in the width direction by multiple press molding means, and pilots are provided at both ends in the width direction of the paper substrate. And a groove having a shape and size sufficient to allow the protrusion of the recess to pass therethrough is provided in the die plate.

  According to a second aspect of the present invention, the pilot according to the first aspect is installed in an upper mold in which the pilot descends, and the shape thereof is a rectangular parallelepiped that is long in the feed direction, and the portion that contacts the paper substrate when descending is tapered from the bottom to the top The die plate is provided with a space sufficient to accommodate the lowering of the tapered surface, which is a rectangular pilot whose surface is a plane having a height equal to or greater than the thickness of the paper substrate. It is characterized by that.

  According to a third aspect of the present invention, the pilot according to the first aspect is installed in an upper mold where the pilot descends, and a portion in contact with the paper base when the lowering is a tapered surface inclined from the bottom surface toward the upper portion. It is characterized by having a shape in which two or more prisms, which are flat surfaces having a height equal to or greater than the thickness of the base material, are arranged, and a sufficient gap portion is provided in the die plate to accommodate the descending tapered surface portion. To do.

The invention according to claim 4 is the step of grasping the paper base material and feeding it to the die plate and holding the concave portions on the base material by the square punch rows arranged in the width direction of the paper base material, and simultaneously the same number of round punch rows. Forming a through hole and a step of cutting the formed paper base material in the feed direction, and in the cutting step, pilots are provided at both ends in the width direction of the paper base material, and the protruding portion of the recess passes. A sufficient groove is provided in the die plate.

  According to the first aspect of the present invention, the following problems that occur when cutting a wide paper substrate having a plurality of rows of recesses and rows of through holes in the width direction are solved. (1) When the paper base material is fed by the cutting means, the paper base material is pinched by the pilot, so that no side shake occurs, and the dimensional accuracy such as E dimension does not deteriorate. (2) In the cutting means, when the blade presses the paper substrate and cuts the paper substrate in the feed direction, the pilot holding the paper substrate is prevented from spreading in the width direction, and dimensional accuracy such as E dimension is improved. Do not decrease. (3) By setting a groove in the die plate when the paper base material passes through the cutting means, it is possible to cut without impairing the dimensional accuracy of the concave portion due to the concave portion protruding portion becoming the die plate surface.

  According to the invention described in claim 2, the paper base is spread and laterally displaced by the cutting means, which is installed in the upper die where the rectangular parallelepiped pilot which is long in the feed direction descends and is integrated with the multiple press molding. By suppressing it, the dimensional accuracy can be increased. The part that contacts the paper substrate when descending is a tapered surface, and when further descending, the lower part of the rectangular parallelepiped having the tapered surface is housed in a gap portion installed in the die plate and contacts the paper substrate at the upper flat part Therefore, it is possible to improve the dimensional accuracy and reduce the friction caused by the movement of the paper base material in the width direction, thereby eliminating the end face damage of the paper base material.

  According to the third aspect of the present invention, two or more pilots, which are prismatic in shape and come into contact with the paper base material when lowered, are arranged in the feed direction so that the end surface is less damaged with low friction and the dimensional accuracy is improved. Can be improved.

  According to the fourth aspect of the present invention, a large number of press carrier tapes can be manufactured in large quantities at low cost, and the dimensional accuracy of the product and the shape of the recesses can be maintained.

FIG. This figure shows the 20-die mold of Example 1. FIG. This figure shows a 20-continuous mold according to the second embodiment. Paper press carrier tape body. 1 is a pilot shape diagram of Embodiment 1. FIG. FIG. 6 is a pilot shape diagram of Embodiment 2. FIG. 3 is a schematic diagram of press according to the first embodiment. FIG.

  Embodiments of the present invention will be described below with reference to the drawings. In the examples of the present invention, limited paper substrates, devices, and molds were used, but it is obvious that the embodiments of the present invention are not limited to those described.

  Hereinafter, Example 1 of the present invention will be described in detail with reference to FIGS. 1, 4 and 6 for the production of the paper carrier tape shown in FIG.

  The multiple press molding means used in Example 1 is a 12-die plate with 15 height blocks in contact with 14 strippers at both ends, a 20-row through-hole molding die, a 14-die stripper with holes, and 20 rows. And a mold having a 13 punch plate on which 17 concave punches for forming recesses and 16 round punches for forming 20 rows of through holes are installed. In order to improve durability in the present invention, as shown in FIG. 1, the mold has a block surface having four dies in the width direction in the feed direction of the nine paper bases and does not overlap with the feed direction. In this way, an array of 16 die punches for forming recesses and 8 16 round punches for forming through-holes in parallel in the feed direction of 12 die plates and 5 paper bases having 5 sides alternately and 9 paper bases Five block surfaces having four rows each in the width direction of the material are alternately provided so as not to overlap with the feeding direction of the nine-paper base material.

  Oji Paper HJ60 (S) (width 164 mm, thickness 0.60 mm) is fed from a paper base roll and transferred to a multiple press die. When the 14 stripper shown in FIG. 1 descends, a space was formed between the 12 die plate and the 14 stripper in contact with the 15 height block installed on the 12 die plate, and 9 paper bases were placed thereon. As shown in the schematic diagram of FIG. 6, the 13 punch plate was lowered, and the 17-corner punch pushed the 9-paper base material into 20 rows of 16 recesses. At the same time, 16 round punches for forming through holes punched 9 paper bases, and 20 rows of 8 21 through holes were formed (not shown).

  A 9-paper substrate having 20 rows of 22 recesses and 20 rows of 21 through-holes is transferred to the slit means, and the 18-slit cut punch shown in FIG. 1 is pressed against the 9-paper substrate and cut. When cutting, the 11a square pilot A which is a rectangular parallelepiped having a tapered surface shown in FIG. 4 and which is chamfered in advance (not shown) descends, and a 9 paper base is formed on the lower 30a tapered surface A. Was placed on a 12-die plate without friction and sandwiched by the planar portion A of the upper portion 31a, and the spread in the width direction of the nine-paper base material in the slit and lateral shaking were suppressed. Further, the 25 recessed protrusions thus formed passed through the 20a groove A provided on the 12 die plate in the slit means shown in FIG.

The tape dimensions including the slit width and E dimension of the paper carrier tape manufactured in Example 1 and the vertical, horizontal and depth dimensions of the recesses were magnified 30 times with an image measuring machine and automatically measured. All were within standard values.

Regarding Example 2, the production of the paper carrier tape shown in FIG. 3 will be described with reference to FIGS.

The multiple press molding means used in Example 2 is constituted by the multiple press mold shown in FIG. The mold has 12 die plates and 9 paper base feeds that have 5 sides alternately so that block surfaces with 8 rows in the width direction and 4 rows in the feed direction of 9 paper bases do not overlap in the feed direction. A block surface having four rows in the width direction of the nine paper bases, each having 16 rows of concave 17-shaped punches in the direction and eight 16 round punches for through-hole molding in parallel. 5 planes are provided alternately so as not to overlap in the feed direction. As shown in FIG. 2, a 20-b groove B is installed in the 12 die plate, and a 17-corner punch presses a nine-paper substrate in the press molding means, and a 25-concave protrusion passes through the slit means.

Oji Paper HJ42 (S) (width 164 mm, thickness 0.42 mm) is fed from a paper base roll and placed on a 12 die plate. As shown in the schematic diagram of FIG. 7, the 13 punch plate was lowered and the 17-corner punch was pressed into a 20b groove B in which a 9 paper substrate was placed on a 12 die plate to form 16 22 recesses in 20 rows. At the same time, 16 round punches for forming through holes punched 9 paper bases, and 20 rows of 8 21 through holes were formed (not shown).

A 9-paper substrate having 20 rows of 22 recesses and 20 rows of 21 through-holes is transferred to the slit means, and an 18-slit cut punch is pressed against the 9-paper substrate and cut. When cutting, two 11b pilot pilots B having a 30b tapered surface B shown in FIG. 5 and chamfered in advance (not shown) are lowered, and 9 paper base materials are rubbed by the lower 30b tapered surface B. Instead, the sheet was placed on 12 die plates and sandwiched by the plane part B of the upper part 31b, and the spread in the width direction and the lateral blurring of the nine paper bases in the slit were suppressed. Further, the molded 25 concave protrusions passed through the 20b groove B installed on the 12 die plate in the slit means shown in FIG.

The tape dimensions including the slit width and E dimension of the paper carrier tape manufactured in Example 2 and the vertical, horizontal, and depth dimensions of the recesses were magnified 30 times with an image measuring machine and automatically measured. All were within standard values.

  In the embodiment, the pilot is installed in the upper mold and the paper substrate is sandwiched when the stripper is lowered to suppress the spread in the width direction and the lateral blur, but the pilot may be installed on the die plate. In the embodiment, a rectangular parallelepiped and a prismatic pilot are illustrated, but the same effect can be expected even when a plurality of cylindrical pilots are installed. The shape of the groove installed in the die plate can be changed according to the shape of the depression formed by press molding. It is also possible to form a groove shape that is larger than the size of the recessed protrusion in advance. As illustrated in FIG. 1 and FIG. 2, paper dust was removed by air piping to multiple dies, and troubles in the subsequent electronic component housing process and mounting process could be solved.

Production of a paper press carrier tape having a recess for storing electronic components and a through-hole for transporting can be produced in a large amount, at low cost and with high accuracy. Furthermore, it can be widely applied to the production of paper tape materials.

9 Paper Base 10 Paper Carrier Tape 11a Square Pilot A
11b square pilot B
12 Die plate 13 Punch plate
14 Stripper 15 Height Block 16 Round Punch 17 Square Punch 18 Slit Cut Punch 19 Air Piping 20a Groove A
20b Groove B
21 Through-hole 22 Recess 23 Recess bottom 24 Paper base 25 Bottom recess 30a Tapered surface A
30b Tapered surface B
31a Plane part A
31b Plane portion B

Claims (4)

In the means for cutting in the feed direction a wide paper substrate formed by forming multiple rows of recesses in the width direction by multiple press molding means, pilots are installed at both ends in the width direction of the paper substrate and the recesses An apparatus for manufacturing a paper press carrier tape, wherein a groove having a shape and a dimension sufficient to allow the protrusion to pass is provided in the die plate. The pilot according to claim 1 is installed in an upper mold in which the pilot is lowered, and the shape thereof is a rectangular parallelepiped that is long in the feeding direction, and a portion that comes into contact with the paper substrate when descending is a tapered surface that is inclined upward from the bottom surface to the tapered surface. A side surface other than the above is a square pilot that is a flat surface having a height equal to or greater than the thickness of the paper substrate, and a sufficient gap is provided in the die plate to accommodate the tapered surface portion that descends. The paper press carrier tape manufacturing apparatus according to claim 1. The pilot according to claim 1 is installed in an upper mold in which the pilot is lowered, and a portion in contact with the paper base material at the time of lowering is a tapered surface inclined from the bottom surface toward the top, and a side surface other than the tapered surface is equal to or greater than the thickness of the paper base material 2. The paper according to claim 1, wherein two or more prisms which are flat surfaces having a height of 2 are arranged in a shape, and a space sufficient to accommodate the descending tapered surface portion is provided in the die plate. Press carrier tape manufacturing equipment. A process of gripping a paper base material and feeding and placing it on a die plate, and a step of forming concave portions on the base material by a plurality of corner punch rows arranged in the width direction of the paper base material and simultaneously forming a through hole by a round punch row And a step of cutting the molded paper base material in the feed direction, and in the cutting step, pilots are provided at both ends in the width direction of the paper base material, and the die plate has sufficient grooves to allow the protrusions of the recesses to pass. A method for producing a paper press carrier tape, characterized by being installed in

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