JP5086876B2 - Half-cut processing method, flexible die and rotary processing apparatus for processing target sheet - Google Patents

Description

  The present invention provides, for example, a method for half-cutting a sheet material (sheet to be processed) such as a plastic sheet (film) or a paper sheet, a flexible die (sheet-like blade plate) used for the processing, and mounting the flexible die. The present invention relates to a rotary processing apparatus.

  Conventionally, as a method of half-cutting, a die board such as a veneer plate is subjected to grooving according to a punching pattern, and a die in which a strip-shaped blade (Thomson blade) is fitted in the processed groove is manufactured. A method is employed in which the die is mounted on a press machine or the like, and a sheet to be processed such as a paper sheet or a plastic sheet is half-cut.

In addition, recently, a flexible die having a pressing blade with a pattern according to the shape of the cutting line is manufactured on one side of a flexible base (ferromagnetic material), and this flexible die is wound around a magnet roller of a rotary processing apparatus. A method of half-cutting a paper sheet or a plastic sheet is also employed (see, for example, Patent Document 1).
JP 2002-221220 A

  The half-cut processing method that employs the Thomson blade and the half-cut processing method that employs a magnet roller of a rotary processing apparatus are configured to process one surface of a processing target sheet.

  Depending on the processing target sheet made of a laminated sheet, half-cut processing on both sides may be required. The processing target sheet that requires such double-sided processing is currently half-cut on one side, and the other side of the one-sided half-cut processing is half-cut on the other side of the processing target sheet. is there. As a result, when processing the sheet to be processed on both sides, there has been a problem that the number of processing steps is increased compared to single-side processing. In addition, since both surfaces of the processing target sheet are processed in separate processes, there is a drawback that the processing position of the processing target sheet needs to be aligned for each process.

  The present invention has been made in consideration of such a situation, and an object thereof is to enable half-cut processing on both sides of a sheet to be processed in one step.

The present invention provides a flexible die in which a flexible base is wound around a pair of rollers arranged opposite to each other, and a sheet to be processed is passed between the pair of rollers to perform half-cut processing. One flexible base has a sharp edge. A half-cut pattern comprising a press cutting blade and a receiving part having a flat receiving surface at the tip, the height of the receiving surface is set lower than the blade height of the pressing blade, and the other flexible base has a cutting edge A half-cut pattern comprising a sharp pressing blade and a receiving portion having a flat receiving surface at the tip, and the height of the receiving surface is set lower than the cutting height of the pressing blade, The pressing blade corresponds to the receiving portion of the other flexible base, and the pressing blade of the other flexible base and the one flexible base Receiving portion and corresponds, when passing the processing target sheet between a pair of flexible base is the side of the processing target sheet with the half-cut pattern to be opposed to the half-cut.

  According to the present invention, since both sides of the processing target sheet are simultaneously half-cut by the respective press cutting blades, the processing steps are reduced as compared to the case of half-cutting each surface, and the processing target sheet in each step. No need to align.

The rotary processing apparatus of this invention exists in the said flexible die being wound around a pair of rollers .

According to the present invention, when the sheet to be processed is passed between the flexible dies wound around a pair of rollers, both the surfaces of the sheet to be processed are simultaneously half-cut by the respective press cutting blades. Processing can be performed, and further, the processing operation can be speeded up.

The method for half-cutting a sheet to be processed according to the present invention performs the half-cut processing by arranging the flexible die according to the present invention so as to freely rotate and passing a sheet to be processed formed of a laminated sheet between the pair of flexible dies. It is a half-cut processing method, and by cooperating with the pressing blade of one flexible die and the receiving portion of the other flexible die, one side of the processing object sheet is half-cut, and the pressing blade of the other flexible die, The other surface of the sheet to be processed is half-cut by cooperation with the receiving portion of one flexible die .

  According to the present invention, both sides of the processing target sheet can be half-cut in one process, and it is not necessary to align the processing position of the processing target sheet for each process. As a result, productivity is improved.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a rotary processing apparatus according to this embodiment. FIG. 2 shows an example of one flexible die according to the present invention, and FIG. 3 shows an example of the other flexible die according to the present invention.

  As shown in FIG. 1, in the rotary processing device 1, magnet cylinders 11 a and 11 b as a pair of upper and lower cylindrical rollers are rotatably supported on a device frame 2 via bearings (not shown). Flexible dies 10a and 10b are wound around the magnet cylinders 11a and 11b, respectively. The magnet cylinders 11a and 11b are driven to rotate at a predetermined speed in conjunction with a motor (not shown).

  In the pair of flexible dies 10a and 10b, a plurality of half-cut patterns P1 and P2 are arranged at predetermined intervals on flexible bases 12a and 12b having flexibility.

  That is, on one surface of the flexible base 12a of one flexible die 10a, as shown in FIGS. 2 (a) and 2 (b), a half cut pattern P1 composed of the press cutting blade 13 and the receiving portion 15 is provided in the magnet cylinder winding direction. A plurality of them are arranged at predetermined intervals in a direction orthogonal to R (roller winding direction R) and the roller winding direction R.

  The press cutting blade 13 is a blade for cutting a processing target sheet to a predetermined depth with a sharp edge. The press cutting blade 13 is, for example, rectangular and formed continuously with the filament.

  The receiving portion 15 is formed inside the press cutting blade 13 (within the contour of the press cutting blade 13). The receiving portion 15 has a rectangular shape parallel to the pressing blade 13, and a flat receiving surface 15 a is formed continuously at the tip of the receiving portion 15. The height of the receiving surface 15a is set to be lower than the blade height of the press cutting blade 13 by a predetermined length L1. Since the receiving surface 15a is a flat surface, the pressed processing target sheet is not cut.

  The predetermined length L1 is appropriately set depending on the cutting amount of the processing target sheet by the pressing blade 13 or the like.

  On one surface of the flexible base 12b of the other flexible die 10b, as shown in FIGS. 3 (a) and 3 (b), a half cut pattern P2 composed of a press cutting blade 17 and a receiving portion 19 is formed with the half cut pattern P1. A plurality are arranged at predetermined intervals so as to correspond. The pressing blade 17 is formed in a rectangular shape corresponding to the receiving portion 15 of the one flexible die 10a and continuously in a linear shape. In addition, the cutting edge of the pressing blade 17 is sharp as described above.

  The receiving portion 19 is formed in a rectangular shape corresponding to the pressing blade 13 of the one flexible base 12a and continuously in a linear shape. Further, a flat receiving surface 19 a is formed at the tip of the receiving portion 19, and the height of the receiving portion 19 is set lower than the blade height of the pressing blade 17 by a predetermined length L2. The predetermined length L2 is appropriately set according to the cutting amount of the processing target sheet by the pressing blade 17.

  The pair of flexible dies 10a and 10b can be manufactured by etching or machining a metal plate. In addition, when the press cutting blades 13 and 17 and the receiving portions 15 and 19 are formed by etching, if necessary, the press cutting blades 13 and 17 and the receiving portions 15 and 19 are further moved using an NC processing machine or the like. May be machined.

  Next, the case where the rotary processing apparatus 1 provided with flexible die 10a, 10b which consists of the above structure is used is demonstrated.

  As the processing target sheet S that is half-cut processed by the rotary processing apparatus 1, a laminated sheet having a three-layer structure is illustrated. That is, as shown in FIG. 8, the adhesives 20a and 20b are applied to the upper and lower surfaces of the sheet base material composed of the second layer S2, and the both surfaces of the sheet base material S2 are further layered via the adhesives 20a and 20b. A release paper (separator) composed of the eyes S1 and the third layer S3 is attached so as to be peelable. The sheet base material (second layer) S2 is cut into a predetermined shape and used as a double-sided tape for fixing electronic components such as a mobile phone.

  When half-cutting the sheet S to be processed, first, one flexible die 10a is wound around the upper magnet cylinder 11a, and the other flexible die 10b is wound around the lower magnet cylinder 11b (see FIGS. 4 and 5). ). Thus, by attaching the flexible dies 10a and 10b to the magnet cylinders 11a and 11b, the half-cut patterns P1 and P2 can be opposed to each other.

  Each flexible die 10a, 10b has a pair of positioning holes 21a, 21b (see FIGS. 2 (a) and 3 (a)). These positioning holes 21a, 21b are used as magnet cylinders 11a, 11b. By engaging with pins (not shown) provided on the flexible die 10a, 10b, the positioning of the flexible dies 10a, 10b with respect to the magnet cylinders 11a, 11b can be performed accurately and easily.

  Further, the magnet cylinders 11a and 11b are rotationally driven, and the elongated processing target sheet S is passed between the pair of magnet cylinders 11a and 11b (see FIGS. 6 and 7).

  The processing target sheet S is continuously processed on both sides. Specifically, as shown in FIG. 8, the pressing blade 13 of one flexible die 10a and the receiving portion 19 of the other flexible die 10b are pressed against the sheet S. At this time, the pressing blade 13 cuts the sheet S from the first layer S1 to the middle of the third layer S3, but the receiving surface 19a of the receiving portion 19 is only pressed by the third layer S3 and cut. There is no. As a result, the first layer S1 and the second layer S2 are cut into a rectangular shape by the cooperation of the pressing blade 13 and the receiving portion 19. Such a cut line is indicated by C1 in FIG. This cut line C1 forms the outer periphery shape of a double-sided tape.

  Further, the pressing blade 17 of the other flexible die 10b and the receiving portion 15 of the one flexible die 10a are pressed against the sheet S. At this time, the pressing blade 17 cuts the sheet S from the third layer S3 to the middle of the first layer S1, but the receiving surface 15a of the receiving portion 15 is only pressed by the first layer S1 and cut. There is nothing. As a result, the second layer S2 and the third layer S3 are cut by the cooperation of the pressing blade 17 and the receiving portion 15. Such a cut line is indicated by C2 in FIG. This cut line C2 forms the inner peripheral shape of the double-sided tape.

  As described above, in one step in which the processing target sheet S passes through the pair of magnet cylinders 11a and 11b, both surfaces of the processing target sheet S are half-cut (see FIG. 9A). As a result, since both surfaces of the processing target sheet S are half-cut simultaneously by the respective press cutting blades 13 and 17, the step of half-cutting each surface becomes unnecessary, the processing steps are reduced, and the processing target sheet is reduced in each step. Is not necessary (alignment work of the respective half-cut patterns P1 and P2).

  Moreover, since the sheet S to be processed is continuously processed on both sides by a large number of half-cut patterns P1, P2 provided on the pair of rotating flexible dies 10a, 10b, the processing operation can be speeded up, and the productivity is increased. Will improve. FIG. 9A shows a single half-cut portion for convenience.

  As shown in FIG. 10A, in the half-cut processed sheet S, the first layer S1 and the outer unnecessary portion 25 of the second layer S2 are separated and peeled along the cut line C1.

  Further, the unnecessary portion 26 of the second layer S2 and the third layer S3 is separated and peeled along the cut line C2. A portion from which the outer unnecessary portion 25 and the inner unnecessary portion 26 are removed becomes a product portion 27.

  Further, the first layer S1 and the second layer S2 of the product portion 27 are integrated and peeled from the third layer S3 (see FIG. 10B), and the peeled first layer S1 and second layer S2 are peeled off. After sticking the layer S2 to a predetermined part, the first layer S1 can be peeled off and the second layer S2 can be used as an annular double-sided tape (see FIG. 10C).

  The present invention is not limited to the embodiment described above. For example, as shown in FIG. 11, it is possible to half-cut a two-layer label composed of a first layer S1 and a second layer S2 as the processing target sheet S. Since the flexible dies 10a and 10b have the same configuration as that of the above-described embodiment, the same members are denoted by the same reference numerals and description thereof is omitted. The first layer S1 is a label base material coated with an adhesive 20a, and the second layer S2 corresponds to a separator.

  In such an embodiment, the first layer S1 is cut with the pressing blade 13 of the flexible die 10a to form the label shape. The second layer S2 can be cut with the press cutting blade 17 of the flexible die 10b, and a separation cut can be formed in the separator.

  The sheet S used in the present invention can be a variety of sheets such as a resin sheet such as paper and a plastic sheet and a label having a release paper attached to the back surface.

  The flexible dies 10a and 10b can also be provided with a plurality of pressing blades 13 and 17 having different blade heights. In such a case, it is possible to process a laminated sheet having four or more layers.

  Furthermore, the half-cut pattern is not limited to the rectangular shape, and may be any other shape such as a triangle, a square, or a round shape.

  Moreover, in the said embodiment, although the flexible die | dye used for the rotary processing apparatus 1 was illustrated as a die | dye, a flexible die is a magnet (permanent magnet) other than the flexible die | dye mounted | worn and used for a magnet cylinder. The present invention can also be applied to a flexible die attached to a roller that is not provided. Furthermore, the half-cut processing method of the present invention can be applied to a flat die that half-cuts a flat processing target sheet.

It is a perspective view which shows the outline of the rotary processing apparatus of this invention. One flexible die of this invention is shown, (a) is a top view, (b) is XX sectional drawing shown to (a). The other flexible die of this invention is shown, (a) is a top view, (b) is YY sectional drawing shown to (a). It is a perspective view of the state where the flexible die of the present invention is wound around a roller. It is a perspective view of the state where the flexible die of the present invention was wound around a roller. It is a schematic side view which processes a process target sheet | seat using a pair of flexible die | dye of this invention. It is a principal part side view which processes a process target sheet | seat using the flexible die. It is principal part sectional drawing which expand | deploys and shows the state which processed the process target sheet | seat using the flexible die. (A) is a perspective view of a processing target sheet processed by the flexible die of the present invention, (b) is a cross-sectional view taken along line AA of the processing target sheet shown in (a), and (c) is a processing target sheet shown in (a). It is BB sectional drawing of. (A)-(c) is an exploded perspective view which shows the use condition of the sheet | seat to be processed processed with the flexible die of this invention, respectively. It is principal part sectional drawing which expand | deploys and shows the state which processed the process target sheet | seat using the flexible die of this invention.

Explanation of symbols

1 Rotary processing apparatus 10a One flexible die (die)
10b The other flexible die (die)
12a Flexible base 12b Flexible base 13 Pressing blade 15 Receiving portion 15a Receiving surface 17 Pressing blade 19 Receiving portion 19a Receiving surface P1 Half cut pattern P2 Half cut pattern S Sheet to be processed

Claims (3)

In a flexible die that wraps a flexible base around a pair of opposed rollers and performs a half-cut process by passing a sheet to be processed between the pair of rollers,
One flexible base is provided with a half-cut pattern comprising a pressing blade with a sharp blade edge and a receiving portion having a flat receiving surface at the tip, and the height of the receiving surface is set lower than the blade height of the pressing blade. And
The other flexible base is provided with a half-cut pattern comprising a pressing blade with a sharp blade edge and a receiving portion having a flat receiving surface at the tip, and the height of the receiving surface is set lower than the blade height of the pressing blade. And
The pressing blade of the one flexible base corresponds to the receiving portion of the other flexible base, the pressing blade of the other flexible base corresponds to the receiving portion of the one flexible base,
A flexible die characterized in that when a sheet to be processed is passed between a pair of flexible bases, both surfaces of the sheet to be processed are half-cut with the opposing half-cut patterns . A rotary processing apparatus, wherein the flexible die according to claim 1 is wound around a pair of rollers. A half cut processing method for a processing target sheet, wherein the flexible die according to claim 1 is rotatably arranged opposite to each other and a processing target sheet made of a laminated sheet is passed between the pair of flexible dies to perform a half cut processing. And
By cooperating with the pressing blade of one flexible die and the receiving portion of the other flexible die, one side of the sheet to be processed is half-cut, and the pressing blade of the other flexible die and the receiving portion of the one flexible die, The other surface of the processing object sheet is half-cut by the cooperation of the above .

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