JP2012056003A - Die roll, method of manufacturing the same, and rotary machining device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To manufacture a die roll easily and quickly, and perform accurate and highly precise machining.SOLUTION: A cylindrical workpiece 10A is rotatably supported around a workpiece shaft center, and ink having resistance against an etching liquid is ejected from an inkjet nozzle to a circumference face of the workpiece 10A to form a mask. Further, after the mask is formed, the etching liquid is ejected from the nozzle to thereby perform etching processing on an exposed metal face of the workpiece 10A to form a machining pattern. The die roll manufactured in this way has a body roll having a blade portion subjected to etching processing and a rotational shaft.

Description

  The present invention relates to a die roll, a manufacturing method thereof, and a rotary processing apparatus for performing punching processing (pressing processing), half-cut processing or embossing processing of a sheet to be processed such as a paper sheet or a plastic sheet (film).

  Conventionally, comprising a cylindrical die roll having a blade portion on the outer peripheral surface, and a cylindrical anvil roll disposed to face the die roll, a film, a paper sheet, between the die roll and the anvil roll, A rotary processing apparatus that punches or half-cuts a processing target sheet by sandwiching a processing target sheet such as a nonwoven fabric and pressing a blade portion of a die roll against the processing target sheet is known.

  The die roll finishes the cut blade portion after cutting the blade portion around the cylindrical workpiece by a cutting machine.

  In addition, recently, a flexible die having a blade portion with a pattern corresponding to the shape of the cutting line is produced on one side of a flexible base (ferromagnetic material), and this flexible die is wound around a magnet roll of a rotary processing apparatus. The sheet to be processed is passed between the anvil roll (cylinder) adjacent to the magnet roll, and the sheet to be processed is cut by the blade portion with the rotation of the magnet roll and the anvil roll. Punching and half-cutting are performed (for example, see Patent Document 1). The blade portion of the flexible die is formed by etching.

JP 2009-255183 A

  However, when the entire die roll is cut out from the cylindrical workpiece as described above, a great amount of processing time and skill are required for the operator.

  The die roll described in Patent Document 1 has a configuration in which the flexible die is wound around the magnet roll of the rotary processing apparatus. Therefore, when the pattern is such that the blade portion is partially concentrated, the flexible die is wound around the magnet roller. When there are many blade portions extending along the direction, the winding property of the flexible die around the magnet roller is deteriorated. In addition, since both ends of the flexible die are in a state of being bonded to each other, a “base lift” in which a part of the flexible base floats from the outer peripheral surface of the magnet roller may occur.

  In the configuration in which the flexible die is wound around the magnet roll, it is difficult to completely prevent the flexible die and the magnet roll from floating, particularly when the diameter of the magnet roll is small. .

  As described above, when “floating of the base” occurs, when the blade portion is pressed against the sheet to be processed, the blade portion escapes, so that the rigidity of the blade portion becomes weak and accurate machining cannot be performed. is there.

  Therefore, according to the present invention, by forming the blade portion of the main body roll by etching, it is possible to easily and quickly manufacture even a complicated arbitrary pattern blade portion, and to perform accurate and high-precision processing. An object of the present invention is to provide a die roll, a manufacturing method thereof, and a rotary processing apparatus which can be expected.

  The present invention has been made in order to solve the above-described problems, and a feature of the die roll manufacturing method is that a cylindrical workpiece is supported so as to be rotatable about the workpiece axis, and the peripheral surface of the workpiece is provided. In addition, a process of forming a mask by jetting ink having resistance to an etchant from an inkjet nozzle, and after forming the mask, an etchant is jetted from the nozzle to etch the exposed metal surface of the workpiece. And a step of forming a processing pattern.

  In the die roll manufacturing method of the present invention, since the workpiece processing pattern is formed by etching, the manufacturing can be performed easily and quickly. In particular, when the machining pattern is complicated, a blade portion having an arbitrary machining pattern can be easily formed as compared with a case where the pattern is machined only by machining.

  The manufacturing method includes a step of finishing and cutting a processing pattern after the etching.

  The die roll has a rotation shaft and a main body roll having a shaft insertion hole through which the rotation shaft is inserted and a blade portion provided on the outer peripheral surface. The blade portion of the main body roll is formed by an etching process. It is to be formed.

  Since the die roll of the present invention has a configuration in which a processing pattern is provided by etching, unlike a configuration in which a conventional flexible die is wound around a magnet roll, the blade portion of the processing pattern does not escape at the time of cutting. As a result, punching, half-cutting and embossing can be performed accurately and stably, and the respective processing accuracy is improved.

  In the die roll, the blade portion is to perform punching or half-cut processing.

  The die roll includes a rotation shaft and a body roll having a shaft insertion hole through which the rotation shaft is inserted and having a blade portion provided on an outer peripheral surface, and the blade portion of the body roll is formed by an etching process. The blade portion is to perform embossing.

  In addition, when the rotating shaft is removably inserted into the main body roll, it is possible to replace the die roll, and the user side possesses the rotating shaft and removes an unnecessary main body roll as desired. It is only necessary to replace the roll body, which improves convenience.

  In the rotary processing apparatus of the present invention, a sheet to be processed is passed between the die roll having a blade portion formed in the main body roll by an etching process and a receiving cylinder facing the die roll, and the die roll and the receiving cylinder are passed. As the machine rotates, the sheet to be processed is cut by the pressing blade.

  Further, in the rotary processing apparatus of the present invention, a pair of die rolls in which the blade portion of the main body roll is formed by an etching process are arranged to face each other, and a sheet to be processed is passed between the pair of die rolls, thereby embossing. Is to do.

  According to the present invention, since the blade portion of the work serving as the main body roll is formed by etching, even a blade portion having a complicated arbitrary pattern can be easily and quickly manufactured. In addition, unlike a configuration in which a conventional flexible die is wound around a magnet roll, the blade portion does not escape when being cut. As a result, punching, half-cutting and embossing can be performed stably, and accurate and highly accurate processing can be expected.

It is a schematic front view of the mask formation process which concerns on the manufacturing method of the die roll of this invention. It is a schematic front view of the etching process which concerns on the manufacturing method of the same die roll. It is a schematic front view of the machining process which concerns on the manufacturing method of the same die roll. It is sectional drawing of the die roll which concerns on one Embodiment of this invention. It is a disassembled perspective view of the same die roll. It is a perspective view of the same die roll. It is a perspective view of the rotary processing apparatus which concerns on one Embodiment of this invention. It is the schematic which shows the state which processes a process target sheet | seat with the same rotary processing apparatus. (A) is a perspective view of the die roll for embossing, (b) is the schematic which shows the state which processes a process target sheet | seat with the same rotary processing apparatus.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. 4 to 6 show an example of the die roll according to the present invention, and FIG. 7 shows an example of the rotary processing apparatus of the present embodiment.

  As shown in FIG. 7, the rotary processing device 1 includes a bearing (not shown) so that a die roll 5 as a cylindrical roller and a cylindrical receiving barrel (anvil roll) 6 face each other on the device frame 2. It is rotatably supported via. The die roll 5 and the receiving cylinder 6 are driven to rotate in the direction of the arrow shown in FIG. 7 at a predetermined speed in conjunction with a motor (not shown).

  As shown in FIGS. 4 to 6, the die roll 5 includes a cylindrical main body roll 10 and a rotary shaft 20 that is detachably inserted into the main body roll 10 and rotates integrally with the main body roll 10. Yes.

  As the material of the main body roll 10, for example, high hardness iron or stainless steel is adopted. The outer peripheral surface 11 of the main body roll 10 is a cylindrical surface having a uniform radius with respect to the center of the shaft, and a blade portion 13 projects from the cylindrical surface. This blade part 13 is formed by the below-mentioned etching process in the cutting pattern (processing pattern) P according to the shape of the processed product.

  Moreover, the bearer part 15 to which the said anvil roll 6 rolls is provided on both sides of the direction (longitudinal direction) along the axial direction of the main body roll 10 with the blade part 13 interposed therebetween. Moreover, a shaft insertion hole 17 penetrating in the longitudinal direction is formed at the axial center of the main body roll 10. In addition, bearing peripheral surfaces 16 and 16 that are in contact with the rotating shaft 20 are formed on the inner peripheral surface of the shaft insertion hole of the main body roll 10 and on both sides in the longitudinal direction of the main body roll 10.

  The rotary shaft 20 is made of a material (for example, a metal such as S45C) that is less expensive than the main body roll 10. The rotating shaft 20 includes a rotating shaft main body 21 to which the main body roll 10 is fitted and fixed, and projecting portions 23 and 23 that protrude from both ends of the main body roll 10. In addition, as means for fixing the rotating shaft 20 and the main body roll 10, well-known means such as shrink fitting, screwing, press-fitting, etc. can be adopted, and a specific description thereof is omitted.

  Next, a method for manufacturing the main body roll 10 will be described with reference to FIGS.

  First, the workpiece 10A to be the main body roll 10 is machined into a cylindrical shape.

Mask Forming Step The workpiece 10A is set in the etching mask forming apparatus 50 (see FIG. 1). The etching mask forming apparatus 50 includes a pair of support portions 51 and 52 that rotatably support the workpiece 10A, and an inkjet head 53 that ejects ink having resistance to an etching solution onto the surface of the workpiece 10A. . One support portion 51 is a rotary table having a chuck 55. The other support part 52 consists of tailstock.

  Then, the support shaft 56 is inserted into the shaft insertion hole 17 of the workpiece 10 </ b> A, and the workpiece 10 </ b> A is fixed to the support shaft 56. The support shaft 56 may be the rotary shaft 20 or dedicated to the device 50. One of the support shafts 56 is sandwiched by the chuck 55 and the other of the support shafts 56 is supported. The tip end surface of is supported by the tail stock 52. At this time, the workpiece 10A maintains a horizontal state.

  An ink jet head 53 is provided above the workpiece 10A. The inkjet head 53 can reciprocate in a direction along the axis of the workpiece 10A. Then, the inkjet head 53 is positioned above one end of the workpiece 10A, and ink is ejected from the nozzles of the inkjet head 53 onto the workpiece 10A. That is, the chuck 55 rotates the workpiece 10A and the support shaft 56 around the support shaft 56 at a predetermined speed, and ejects ink onto a predetermined portion of the peripheral surface of the rotating workpiece 10A.

  Further, the inkjet head 53 is moved by a predetermined distance to a portion of the workpiece 10A where the ink is not applied, and the ink is again ejected from the inkjet head 53 onto a portion of the workpiece 10A where the ink is not applied. The ink ejection process is performed in a plurality of times from one end side to the multi-end side of the workpiece 10A, whereby the mask M is applied and formed on the outer peripheral surface of the workpiece 10A.

Etching Step The workpiece 10A on which the mask is formed in the mask forming step is set in the etching apparatus 60 (see FIG. 2). Specifically, the etching apparatus 60 includes a pair of rotating means 61 and 61 that rotate the workpiece 10A, and a nozzle 62 that jets an etching solution from above to the workpiece 10A rotated by the rotating means 61 and 61. It has.

  Then, the work 10A is supported by the rotating means 61 and rotated, and an etching solution is sprayed from the nozzle 62 onto the rotating work 10A. By spraying the etching solution from the nozzle 62, the exposed metal surface of the workpiece 10A is etched to form the cutting pattern P. When the progress of the etching with the etching solution reaches a predetermined depth, the injection of the etching solution from the nozzle 62 is stopped and the etching is finished.

  By such etching, the arbitrary cutting pattern P and the bearer portion 15 can be easily formed on the outer peripheral surface of the workpiece 10A.

  After this etching process is completed, the mask M remaining on the outer peripheral surface of the workpiece 10A is removed. When removing the mask, for example, the mask M can be wiped off with a solvent, or the solvent can be sprayed from a nozzle (not shown).

Machining Step After the cutting pattern P is formed on the outer peripheral surface of the main body roll 10 by the etching step, it is set on the NC processing machine 70 (see FIG. 3). That is, both ends of the support shaft 56 inserted through the workpiece 10A are supported by the pair of rotation support means 71a and 71b, and the workpiece 10A is rotated. In addition, the cutting tool 72 is mounted on the head 73, and the head 73 moves appropriately while rotating the cutting tool 72. With this head 73, the cutting pattern P is finish-cut (machined) to form the blade portion 13.

  In the present embodiment, since the blade portion 13 of the main body roll 10 is formed by etching the main body roll 10, its manufacture can be performed easily and quickly. In particular, when the cutting pattern P of the blade portion 13 is complicated, the blade portion 13 having an arbitrary cutting pattern P can be easily formed as compared with the case of cutting only by machining.

  When using the rotary processing apparatus 1 having the above configuration, as shown in FIG. 8, the die roll 5 and the anvil roll 6 are rotationally driven to rotate the processing target sheet S between the die roll 5 and the anvil roll 6. Let it pass. At this time, since the blade portion 13 of the die roll 5 cuts the processing target sheet S by a predetermined amount, a punching process or a half-cut process is performed.

  Since the die roll 5 of the present embodiment has a configuration in which the blade portion 13 is integrally formed on the main body roll 10 by etching, the blade portion 13 is cut unlike a configuration in which a conventional flexible die is wound around a magnet roll. I don't run away when I get in. As a result, the punching process and the half-cut process can be performed accurately and stably, and the processing accuracy of the punching process and the half-cut process is improved. In particular, when the main body roll 10 has a small diameter, it is not necessary to wind the flexible die around the magnet roll, which is effective.

  When the main body roll 10 is exchanged due to wear of the blade portion 13 or when the pattern P of the blade portion 13 is replaced, the main body roll 10 is removed from the rotating shaft 20, and further, the new main body roll 10 is turned to the rolling shaft 20. Insert and install.

  As described above, since the die roll 5 can be attached to and detached from the main body roll 10 and the rotating shaft 20, the die roll 5 can be replaced, and the user side holds the rotating shaft 20, The unnecessary main body roll 10 may be replaced with a desired main body roll 10, which improves convenience.

  Moreover, since the die roll 5 comprises the main body roll 10 and the rotating shaft 20 as separate members, only the main body roll 10 that is discarded after replacement is made of an expensive material. An inexpensive material can be adopted, and the cost of the entire die roll 5 can be reduced.

  The present invention is not limited to the above embodiment. For example, although the die roll 5 of the said embodiment illustrated about the case where a punching process and a half cut process are performed, the rotary processing apparatus 1 may perform an embossing.

  Specifically, as shown in FIG. 9 (b), the rotary processing apparatus 1 has a pair of die rolls 5A and 5B arranged to face each other, and the pair of die rolls 5A and 5B forms the unevenness of the processing target sheet S. It is.

  As shown to Fig.9 (a), the embossing pattern P1 which consists of the embossing blade part (concave part) 13A is formed in the outer peripheral surface of the main body roll 10 in one die roll 5A. The recess 13A is a portion subjected to an etching process. In addition, the mask is apply | coated to the part 14 divided by the dot of the outer peripheral surface of the main body roll 10B, As a result, the etching process is not performed.

  Moreover, the embossing pattern P2 which consists of the embossing blade part (convex part) 13B is formed in the other die-roll 5B. This convex part 13B is a part which has not been etched, and other exposed metal surfaces are etched.

  Since the embossed patterns P1 and P2 are respectively formed by the etching method as described above, a specific manufacturing method of the manufacturing method is omitted.

  When embossing is performed, it is not necessary to machine the embossing patterns P1 and P2, and the arrangement and number of embossing patterns P1 and P2 are not limited to this and can be arbitrarily set.

  The means for fixing the roll body and the rotating shaft in the die roll 5 is not particularly limited.

  Moreover, the die roll 5 may be one in which the roll body and the rotating shaft are integrally processed, and a blade portion is provided by an etching process.

DESCRIPTION OF SYMBOLS 1 Rotary processing apparatus 5 Die roll 6 Anvil roll 10 Main body roll 10A Work piece 13 Blade part 13A Embossing blade part (concave part)
13B Embossing blade (convex)
20 Rotating shaft 50 Mask forming device 53 Inkjet head 60 Etching device 62 Nozzle 70 NC processing machine M Mask P Cutting pattern (processing pattern)
P1 Embossing pattern (processing pattern)
P2 Embossing pattern (machining pattern)

Claims (8)

A step of forming a mask by ejecting ink having resistance to an etching solution from an inkjet nozzle on a peripheral surface of the workpiece, and supporting a cylindrical workpiece rotatably about the workpiece axis;
A method of manufacturing a die roll, comprising: forming a processed pattern by etching a metal surface of an exposed workpiece by spraying an etching solution from a nozzle after forming the mask.   2. The method of manufacturing a die roll according to claim 1, further comprising a step of finishing and cutting a processing pattern after the etching. A rotation shaft and a body roll having a shaft insertion hole through which the rotation shaft is inserted and having a blade portion provided on the outer peripheral surface;
The die roll formed by the etching process in the manufacturing method of the die roll of the said Claim 1 or 2 to the blade part of the said main body roll.   The die roll according to claim 3, wherein the blade portion performs a punching process or a half-cut process. A rotation shaft and a body roll having a shaft insertion hole through which the rotation shaft is inserted and having a blade portion provided on the outer peripheral surface;
The die roll according to claim 1, wherein the blade portion of the main body roll is formed by an etching step in the die roll manufacturing method according to claim 1, and the blade portion performs embossing.   The die roll according to claim 3 or 5, wherein the rotating shaft is inserted into the main body roll so as to be detachable.   A sheet to be processed is passed between the die roll according to claim 4 and a receiving cylinder facing the die roll, and the cutting sheet is cut into the processing object sheet by the rotation of the die roll and the receiving cylinder. A rotary processing apparatus characterized by providing   A rotary processing apparatus, wherein the pair of die rolls according to claim 5 are arranged so as to face each other, and a sheet to be processed is passed between the pair of die rolls to perform embossing.

Images