JP2008168362A - Cutting method of sheet member, manufacturing method of component of droplet discharge head, manufacturing method of droplet discharge head, and cutting device of sheet member - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cutting method of a sheet member which appropriately cuts the sheet member without deforming the vicinity of a cutting part while preventing wear and damage or the like of a cutting blade or a cutting surface. <P>SOLUTION: In the cutting method, the sheet member 13 is abutted on a flat cutting surface 12 formed by a cutting table 11, and the sheet member 13 is cut by advancing the cutting blade 15 from the position opposed to the cutting surface 12 to the sheet member 13 to abut on the cutting surface 12. The cutting table 11 having an auxiliary table 17 which is displaced so as to partially recess the cutting surface 12 by a pressing force from the cutting blade 15 forming a part of the cutting surface 12 and abutted is used as the cutting table 11. The cutting blade 15 is advanced to the sheet member 13, the cutting blade 15 is abutted on a cutting auxiliary surface 27 formed by the auxiliary table 7, and the sheet member 13 is cut with the cutting blade 15 by penetrating the sheet member 13. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a sheet cutting method and a cutting apparatus for manufacturing a nozzle plate, a vibration plate, or a flow path plate, which are components of a droplet discharge head, by cutting a sheet member. The present invention relates to a suitable cutting method and cutting apparatus.

  Conventionally, there is a sheet-like member that has been processed to form a plurality of desired parts, for example, by being cut into individual pieces at a cutting position according to the processing, Some produce multiple desired parts.

  As a method of cutting a sheet member for manufacturing a desired part by such cutting, for example, a press having a configuration in which a plurality of movable molds (cutting blades) are pressed against a cutting surface of a cutting table It is considered to use a machine (for example, see Patent Document 1). In the case of such a structure for pressing and cutting, in order to reliably cut, it is required to reach the position where the cutting blade penetrates the sheet member to be cut, but wear of the mold (cutting blade) or the cut surface, It will cause damage. Further, in the press machine configured as described above, in order to prevent the vicinity of the cutting portion of the sheet member from being deformed, it is necessary to perform cutting while holding the vicinity of the cutting position (pressing allowance). The location cannot be used effectively.

  Therefore, as a device for appropriately cutting the sheet member while preventing abrasion, damage, etc. of the cutting blade or the cut surface, the moving surface of the synthetic resin sheet is to be cut along the moving direction of the continuously moving synthetic resin sheet. The upper and lower roller blade holders respectively hold a plurality of roller blades arranged in a line in the moving direction of the synthetic resin sheet. The upper and lower roller blades are arranged vertically and symmetrically with respect to the synthetic resin sheet, and the gap between the blade edges of the upper and lower roller blades facing each other is arranged to narrow toward the moving direction of the synthetic resin sheet. There is a cutting device having the structure described above (for example, see Patent Document 2). However, in this cutting device, the relative positional relationship between the upper roller blade and the lower roller blade needs to be a predetermined one with high accuracy, and the relative positional deviation between the two roller blades is caused by the cutting portion of the sheet member. It may cause deformation in the vicinity or damage to both roller blades.

  In addition, as a device for appropriately cutting the sheet member while preventing abrasion, damage, etc. of the cutting blade or the cut surface, adjacent to a cutting table (cutting lower mold) that forms a cut surface on which the sheet member is placed, It is considered to prevent the deformation of the vicinity of the cutting portion of the sheet member by providing a lifting platform that descends as the cutting blade moves downward and pressing the side surface of the cutting blade against the cutting surface of the sheet member while cutting the sheet member. (For example, see Patent Document 3). However, in this cutting apparatus, it is necessary to make the relative positional relationship between the cutting blade, the cutting table, and the lifting table high with a predetermined accuracy, and the relative displacement between the cutting blade, the cutting table, and the lifting table is Further, deformation in the vicinity of the cutting portion of the sheet member or damage to the cutting blade, the cutting table, the lifting table, etc. is caused.

In addition, as a method for appropriately cutting the sheet member while preventing the cutting blade or the cut surface from being worn or damaged, an undersheet having a hardness that allows the cutting blade to enter the cut surface of the cutting table is provided. It is considered that the sheet member is placed on the sheet, and the sheet member is cut by pressing the cutting blade against the cut surface until it penetrates the sheet member and bites into the undersheet (see, for example, Patent Document 4). ).
Japanese Utility Model Publication No.59-25327 JP 2005-238375 A JP-A-10-71597 JP 2003-300190 A

  However, in the method of Patent Document 4, since a bite mark is formed in the undersheet, it is necessary to change the portion where the cutting blade in the undersheet bites each time the undersheet is cut or to replace the undersheet itself. In addition, since it is considered that the bite mark may damage the sheet member, it is considered that the undersheet has a hardness that can prevent the sheet member from being damaged by the bite mark, but is placed on the undersheet. When the cutting blade is pressed against the sheet member, the undersheet is deformed together with the sheet member by this pressing force, and the sheet member cannot be cut at an appropriate position.

  The present invention has been made in view of the above problems, and can prevent a cutting blade or a cut surface from being worn or damaged, and can appropriately cut the sheet member without deforming the vicinity of the cutting portion. It aims to provide a cutting method.

  In order to solve the above-described problem, the invention according to claim 1 is configured such that a sheet member is brought into contact with a flat cut surface formed by a cutting table, and a cutting blade is caused to enter the sheet member from a position facing the cut surface. A cutting method in which the sheet member is cut by being brought into contact with the cut surface, and the cutting is performed by a pressing force from the cutting blade that is in contact with the cutting table while forming a part of the cut surface. Using an auxiliary base that is displaceable so that the surface is partially recessed, the cutting blade enters the sheet member, and the cutting blade contacts the cutting auxiliary surface formed by the auxiliary base. The sheet member is cut by contacting and penetrating the sheet member with the cutting blade.

  According to the above configuration, when the cutting blade penetrating the sheet member contacts the cutting assist surface of the auxiliary table, the auxiliary table is displaced by the pressing force from the contacted cutting blade. The sheet member can be reliably cut while preventing the surface from being worn or damaged.

  Further, until the cutting blade penetrates the sheet member, that is, while the cutting blade cuts the sheet member, a part of the pressing force from the cutting blade is absorbed by cutting the sheet member. Since the auxiliary table is not displaced and the cut surface including the cutting auxiliary surface can make the sheet member flat, it is possible to prevent the vicinity of the cutting portion from being deformed.

  Furthermore, since it is only necessary to set the relative positional relationship so that the cutting blade comes into contact with the cutting auxiliary surface of the auxiliary table, it is possible to provide upper and lower roller blades that face each other as in the past, or to raise and lower the cutting blade and the cutting table. Compared with the provision of a base, the sheet member is appropriately used without requiring high accuracy and without causing the cutting blade and the cutting auxiliary surface to be worn or damaged, without deforming the vicinity of the cutting portion. Can be cut into pieces.

  According to a second aspect of the present invention, the sheet member is cut into pieces using the sheet member cutting method according to the first aspect, thereby ejecting ink as a component part of a droplet discharge head. A nozzle plate in which a nozzle hole is formed, a flow path plate in which a liquid chamber communicating with the nozzle hole is formed, or a diaphragm that changes the volume of the liquid chamber is manufactured.

  According to the above-described configuration, since the sheet member is appropriately cut without being deformed in the vicinity of the cutting portion and is manufactured by being cut from the sheet member, high assembly accuracy is required while being an extremely thin and small member. It is suitable for manufacturing a nozzle plate, a flow path plate, or a vibration plate, which are components of the droplet discharge head.

  The invention according to claim 3 is a method for manufacturing a component part of the droplet discharge head according to claim 2, wherein a plurality of the nozzle plates or a plurality of the flow path plates from a single sheet member, Alternatively, a plurality of the diaphragms are manufactured.

  According to the configuration described above, while the cutting blade is cutting the sheet member, a part of the pressing force from the cutting blade is absorbed by cutting the sheet member, thereby preventing the auxiliary base from being displaced. Therefore, it is possible to prevent the vicinity of the cutting portion from being deformed by the cut surface including the cutting auxiliary surface making the sheet member flat. For this reason, it is not necessary to cut the vicinity of the cutting position (pressing allowance) as in the prior art, and a plurality of nozzle plates, flow path plates or diaphragms can be manufactured by effectively using the sheet member.

  A fourth aspect of the present invention is a method of manufacturing a component part of a droplet discharge head according to the third aspect, wherein a nozzle plate sheet processed to form a plurality of the nozzle plates as the sheet member. Or a flow path plate sheet processed to form a plurality of flow path plates, or a vibration plate sheet processed to form a plurality of vibration plates, and the cut surface of the cutting table A nozzle plate sheet, a flow path plate sheet, or a diaphragm plate is brought into contact with the nozzle plate sheet, and the cutting position by the cutting blade is recognized by using the piece position recognition means. Alternatively, it is determined based on the boundary position of each piece in the flow path plate sheet or the diaphragm sheet.

  According to the above configuration, the cutting position from the processed nozzle plate sheet, flow path plate sheet or diaphragm sheet is determined based on the boundary position of each piece recognized by the piece position recognition means. Therefore, it is possible to cut each piece from each plate sheet by cutting at an appropriate location according to the applied processing, and a plurality of nozzle plates and flow paths that have contour positions that match the applied processing with high accuracy A plate or diaphragm can be manufactured.

  According to a fifth aspect of the present invention, the sheet member cutting method according to the first aspect is used to cut out the sheet member into individual pieces, thereby ejecting ink as a component of the liquid droplet ejection head. Forming at least one of a nozzle plate in which a nozzle hole is formed, a flow path plate in which a liquid chamber communicating with the nozzle hole is formed, or a vibration plate for changing the volume of the liquid chamber; The droplet discharge head is manufactured by assembling the component parts including the component parts.

  According to the above configuration, the droplet discharge head is assembled by assembling the nozzle plate, the flow path plate, or the vibration plate formed by cutting the sheet member appropriately without deforming the vicinity of the cutting portion. Since it manufactures, an assembly | attachment property can be made favorable and a manufacturing yield can be improved.

  According to a sixth aspect of the present invention, there is provided a cutting table that forms a flat cut surface with which a sheet member abuts, and a cutting blade that is movable in a direction substantially orthogonal to the cut surface at a position facing the cut surface. A cutting device for cutting the sheet member by causing the cutting blade to enter the sheet member and abutting the cutting surface, wherein the cutting table includes the cutting blade at the cutting surface. A cutting assist surface is formed at a position where the cutting surface comes into contact with the cutting surface in a direction substantially orthogonal to the cutting surface, and the cutting assist surface is partially recessed by the pressing force from the contacted cutting blade. An auxiliary base that is displaceable in the direction of recession from the cut surface is provided.

  According to the above configuration, when the cutting blade penetrating the sheet member contacts the cutting assist surface of the auxiliary table, the auxiliary table is displaced by the pressing force from the contacted cutting blade. The sheet member can be reliably cut while preventing the surface from being worn or damaged.

  Further, until the cutting blade penetrates the sheet member, that is, while the cutting blade cuts the sheet member, a part of the pressing force from the cutting blade is absorbed by cutting the sheet member. Since the auxiliary table is not displaced and the cut surface including the cutting auxiliary surface can make the sheet member flat, it is possible to prevent the vicinity of the cutting portion from being deformed.

  Furthermore, since it is only necessary to set the relative positional relationship so that the cutting blade comes into contact with the cutting auxiliary surface of the auxiliary table, it is possible to provide upper and lower roller blades that face each other as in the past, or to raise and lower the cutting blade and the cutting table. Compared with the provision of a base, the sheet member is appropriately used without requiring high accuracy and without causing the cutting blade and the cutting auxiliary surface to be worn or damaged, without deforming the vicinity of the cutting portion. Can be cut into pieces.

  The invention according to claim 7 is the sheet member cutting device according to claim 6, wherein the auxiliary base has the normal position where the cutting auxiliary surface forms the same plane as the cutting surface, and the cutting position from the cutting position. It is held on the cutting table so as to be movable between a displacement position displaced along the moving direction of the cutting blade so as to dent the cut surface, and biased from the displacement position toward the normal position by a biasing means. The urging means is set to an urging force that allows displacement from the normal position to the displacement position by receiving a pressing force from the cutting blade on the cutting assist surface. It is characterized by.

  According to the above-described configuration, the sheet member can be formed without deforming the vicinity of the cutting portion while preventing the cutting blade and the cutting auxiliary surface from being worn or damaged only by appropriately adjusting the urging force of the urging means. Can be cut appropriately.

  The invention according to claim 8 is the sheet member cutting device according to claim 6 or claim 7, wherein the portion of the auxiliary base where the cutting blade abuts to form the cutting auxiliary surface is the cutting blade. It is characterized by being formed of a material having a lower hardness.

  According to the above-described configuration, it is possible to prevent the cutting blade from being damaged when the cutting assist surface is pressed.

  The invention according to claim 9 is the sheet member cutting device according to any one of claims 6 to 8, wherein the sheet member in a state of being in contact with the cut surface is provided on the cutting table. A fixing holding means for fixing is provided.

  According to the configuration described above, since the sheet member can be cut in a state of being fixed to the cut surface, the sheet member can be more appropriately cut without deforming the vicinity of the cutting portion.

  The invention according to claim 10 is the sheet member cutting device according to claim 9, wherein the fixing and holding means includes a suction hole that opens the cut surface, and a suction means that can suck air in the suction hole. It is characterized by having.

  According to the above configuration, since the sheet member can be cut while being adsorbed and fixed to the cut surface, the sheet member can be cut while the sheet member is in close contact with the cut surface. It is possible to cut the sheet member more appropriately without causing it to occur.

  The invention according to an eleventh aspect is the sheet member cutting device according to the ninth or tenth aspect, wherein the fixing and holding means covers the sheet member in contact with the cutting table and the sheet member. The oversheet abutted on the cutting table is fixed to the cut surface.

  According to the above configuration, since the oversheet covering the sheet member can be brought into contact with the cut surface together with the sheet member and the sheet member can be cut together with the oversheet, the sheet member is in close contact with the cut surface. Can be cut off, and foreign matter can be prevented from adhering to the sheet member during cutting.

  The invention according to claim 12 is the sheet member cutting device according to any one of claims 6 to 11, wherein the sheet member is in an appropriate positional relationship with the cutting table and the sheet member. Positioning means for contacting the cut surface is provided.

  According to the configuration described above, the positional relationship between the cut surface and the sheet member can be easily and surely appropriate, and a more appropriate position in the sheet member can be cut.

  The invention according to claim 13 is the sheet member cutting device according to any one of claims 6 to 12, wherein the cutting blade is capable of changing a relative distance from the cutting table. A positioning block that is capable of changing a relative distance from the cutting table, a pressing block provided to face the positioning block, and the pressing block. And a spring for biasing the positioning blade toward the positioning block, and the cutting blade is sandwiched between the positioning block and the pressing block by the biasing force of the spring.

  According to the above configuration, the cutting blade can be easily arranged at an appropriate position with respect to the cut surface, and the cutting blade can be easily replaced while preventing the position from changing. Can do.

  A fourteenth aspect of the present invention is the sheet member cutting device according to any one of the sixth to thirteenth aspects, wherein the sheet member is a component that is a component of a liquid droplet ejection head and ejects ink. A nozzle plate sheet processed to form a nozzle plate with holes, or a component plate of a droplet discharge head, processed to form a flow path plate with a liquid chamber communicating with the nozzle holes. Or a diaphragm sheet processed to form a diaphragm that changes the volume of the liquid chamber, and the nozzle plate sheet is separated into pieces to form the nozzle plate. The flow path plate sheet is cut into pieces to form the flow path plate, or the vibration plate sheet is cut into pieces to form the vibration plate. To do.

  According to the above-described configuration, since the sheet member is appropriately cut without being deformed in the vicinity of the cutting portion and is manufactured by being cut from the sheet member, high assembly accuracy is required while being an extremely thin and small member. It is suitable for manufacturing a nozzle plate, a flow path plate, or a vibration plate, which are components of the droplet discharge head.

  In the cutting method of the sheet member according to the present invention, the sheet member can be appropriately cut without deforming the vicinity of the cutting portion while preventing the cutting blade or the cut surface from being worn or damaged.

  Below, the Example of the sheet | seat member cutting device 10 which concerns on this invention is described, referring drawings.

  FIG. 1 is a schematic top view of a cutting surface 12 of a cutting table 11 as viewed from above in order to explain the configuration of a sheet member cutting device 10 according to the present invention. FIG. FIG. 3 is a partial cross-sectional view taken along the line, and FIG. 3 is a partial cross-sectional view taken along the line II-II in FIG.

  The sheet member cutting device 10 cuts (manufactures) a plurality of individual plate materials 14 from the sheet member 13 by cutting, and has a cutting table 11 (see FIGS. 2 and 3) installed substantially horizontally. is doing. The cutting table 11 has a flat surface (12) whose upper end is substantially horizontal, and forms a cut surface 12 for cutting for manufacturing by cutting the individual plate material 14. The cut surface 12 is a place where the sheet member 13 to be cut is placed so as to come into surface contact, and the placed sheet member 13 is pressed by a cutting blade 15 (see FIGS. 2 and 3) described later. By being applied, a desired portion is cut, and a piece having a desired shape is cut out (cut). In the sheet member cutting apparatus 10 shown in FIGS. 1 to 3, two pieces of plate pieces 14a and 14b each having a rectangular shape from one sheet member 13 on the cut surface 12 for easy understanding. Are cut out (manufactured) by cutting.

  The cutting table 11 is provided with a fixing means 16 for fixing the placed sheet member 13 to the cutting surface 12, and eleven auxiliary tables 17 so as to fit the cutting positions of the plate pieces 14a and 14b. ing. In this sheet member cutting device 10, a plurality of suction holes 16a that open to the cut surface 12 and suction connection ports 16b that communicate therewith are provided as fixing means 16, and are connected to the suction connection ports 16b. The air in each suction hole 16a is sucked by a suction device (not shown). By the suction of a suction device (not shown) via the suction holes 16a and the suction connection ports 16b, the sheet member 13 in surface contact can be sucked and fixed to the cut surface 12. In the present embodiment, the oversheet 18 is also placed on the cut surface 12 so as to cover the sheet member 13, and the oversheet 18 together with the sheet member 13 is sucked by the suction device through the suction holes 16 a and the suction connection ports 16 b. Is also fixed to the cut surface 12 by suction. The configuration and function of the auxiliary base 17 will be described later. In the following description, the direction along the long sides of the plate pieces 14a and 14b is the X-axis direction, the direction along the short sides of the plate pieces 14a and 14b is the Y-axis direction, and the XY plane ( The direction orthogonal to the cut surface 12) is taken as the Z-axis direction (height direction).

  In the sheet member cutting device 10, a cutting blade 15 is provided so as to face the cutting surface 12, and the cutting position by the cutting blade 15 can be adjusted by appropriately changing the posture of the cutting table 11. For this adjustment, in the sheet member cutting apparatus 10, the posture of the cutting surface 12 (the cutting table 11) with respect to the base 19 can be changed, and the cutting blade 15 is in a fixed position (described later) with respect to the base 19. It can be moved along the Z axis direction (up and down direction) on the pressing axis P (see FIGS. 2 and 3). Specifically, in the sheet member cutting device 10, the base 19 is provided with a Y-axis direction moving mechanism 20, an X-axis direction moving mechanism 21, a rotating mechanism 22, a cutting blade selection mechanism 23, and a cutting blade lifting drive mechanism 24. And is controlled and driven by a control mechanism (not shown).

  As shown in FIG. 3, the Y-axis direction moving mechanism 20 is configured such that a Y-axis drive unit 20 b is supported on a Y-direction guide shaft 20 a extending along the Y-axis direction so as to be freely driven (see arrow A <b> 1). Yes. An X-axis direction moving mechanism 21 is attached to the Y-axis drive unit 20b so as to be movable together with the Y-axis drive unit 20b.

  As shown in FIG. 2, the X-axis direction moving mechanism 21 is configured by an X-axis guide shaft 21a extending along the X-axis direction so that an X-axis drive portion 21b is supported so as to be freely driven (see arrow A2). Yes. The X-axis drive unit 21b can be moved with the X-axis drive unit 21b. In other words, the Y-axis direction movement mechanism 20 and the X-axis direction movement mechanism 21 can be moved in parallel along the XY plane. A moving mechanism 22 is attached.

  The rotation mechanism 22 is configured such that a rotation drive unit (not shown) provided in the X-axis drive unit 21b supports the rotation table 22a to be rotatable (see arrow A3). The cutting table 11 is provided on the rotating table 22a. For this reason, the cutting table 11 can be moved in parallel along the XY plane and can be rotated at a desired moving position, and the posture of the cutting surface 12 can be set in the XY plane. It is possible to adjust (change) freely. A pressing axis P is set along the Z-axis direction from a substantially central position of the movable region of the cutting table 11, and a cutting blade raising / lowering drive mechanism 24 is provided coaxially with the pressing axis P.

  As shown in FIG. 3, the cutting blade lifting / lowering drive mechanism 24 does not go through the Y-axis direction moving mechanism 20, the X-axis direction moving mechanism 21, and the rotating mechanism 22, that is, is always fixed at a fixed position. 19 is attached. As shown in FIGS. 2 and 3, the cutting blade lifting / lowering driving mechanism 24 includes a lifting column 24 b that is fixedly supported on the pressing axis P by the base 19 and has a pressing column 24 b that extends along the pressing axis P. It is configured to be held vertically movable along the pressing axis P (see arrow A4). The cutting blade lifting / lowering drive mechanism 24 pushes the cutting blade 15 downward via the pressing column 24b so that the cutting blade 15 enters the sheet member 13 placed on the cutting surface 12.

  Here, in the sheet member cutting device 10 according to the present embodiment, the sheet member 13 is cut (manufactured) by cutting the sheet member 13 into a rectangular plate piece (see 14a and 14b) having a rectangular shape. Therefore, a long-side cutting blade 15a extending along the X-axis direction to cut the long side portion of the plate piece, and a short-side cutting blade extending along the Y-axis direction to cut the short side 15b. In order to move one of the two long side cutting blades 15a and the short side cutting blade 15b onto the pressing axis P, that is, the cutting blade to allow one of the cutting blades 15a and 15b to enter the sheet member 13. A cutting blade selection mechanism 23 is provided in order to be pushed down by the pressing of the pressing column 24b of the lifting drive mechanism 24.

  As shown in FIG. 2, the cutting blade selection mechanism 23 is configured such that a selection drive unit 26 is supported on a selection guide shaft 25 extending along the X-axis direction so as to be movable (see arrow A5). The selection drive unit 26 is provided with two cutting blade support portions 26a and 26b arranged in parallel along the selection guide shaft 25. The cutting blade support portion 26a holds the long side cutting blade 15a, and the cutting blade The support portion 26b holds the short side cutting blade 15b.

  Both cutting blade support portions 26a, 26b have a transmission column 26c extending in the Z-axis direction and a clamping portion 26d for clamping each cutting blade 15 (15a, 15b). The transmission column 26c is urged upward by the cutting blade spring 26e while being held by the selection drive unit 26 so as to be movable up and down. When receiving a downward pressing force against the cutting blade spring 26e, the transmission column 26c is moved downward together with the clamping portion 26d. Moved to. As shown in FIG. 4, the clamping portion 26d is movable along the XY plane (Y-axis direction for the cutting blade support portion 26a and X-axis direction for the cutting blade support portion 26b) with respect to the positioning block 261. The cutting blade 15 is sandwiched between a pressing block 263 and a positioning block 261 that are urged in a direction in which the holding springs 262 contact each other. Both the cutting blade support portions 26a and 26b are configured such that the axis of the transmission column 26c can coincide with the pressing axis P when the selection driving unit 26 is moved along the selection guide shaft 25. In this matched state, the transmission edge 26c receives the pressing force from the pressing pillar 24b of the cutting blade lifting / lowering drive mechanism 24, whereby the long-side cutting blade 15a and the short-side cutting held by the respective cutting blade support portions 26a and 26b. Either one of the blades 15b is pushed down.

  As described above, in the sheet member cutting apparatus 10 according to the present invention, as shown in FIG. 1, two pieces of the plate pieces 14 a and the plate pieces 14 b having a rectangular shape are cut out from one sheet member 13. Since it is configured (manufactured), the cutting table 11 is provided with eleven auxiliary tables 17 so as to fit the cutting positions of the plate pieces 14a and 14b. The eleven auxiliary bases 17 are composed of three short side auxiliary bases 17b corresponding to the short sides of the plate pieces 14a and 14b, and eight long side auxiliary bases 17a corresponding to the long sides. The short side auxiliary bases 17b are arranged in parallel on the same line along the Y-axis direction at intervals, and the long side auxiliary bases 17a are arranged in the Y axis so as to face each other with the short side auxiliary bases 17b interposed therebetween. Four series are arranged at intervals on two straight lines along the direction. Since each short side auxiliary base 17b and each long side auxiliary base 17a have the same configuration except that the length dimension and the extending direction are different, each is simply referred to as an auxiliary base 17, and the configuration and function will be described below. Will be described.

  FIG. 5 is a schematic perspective view for explaining the configuration of the auxiliary base 17. As shown in FIG. 5, the auxiliary base 17 has a rectangular parallelepiped shape as a whole, the upper end surface (27) is flat, and a flange portion 17a is formed at the lower end. The flat upper end surface (27) can be formed on the same plane as the cutting surface 12 so as to form a part of the cutting surface 12 (see FIGS. 1 to 3), and functions as the cutting auxiliary surface 27. The auxiliary base 17 is made of a material having a hardness lower than that of the cutting blade 15 at least at a portion where the cutting auxiliary surface (upper end surface) 27 is formed. As shown in FIGS. 2 and 3, the auxiliary table 17 is held in an installation hole 11 a provided in the cutting table 11. The installation hole 11a is sized so that the flange 17a cannot be inserted while allowing the auxiliary base 17 to be inserted, and the auxiliary base 17 is received by insertion from below. The heights of the auxiliary base 17 and the installation hole 11a are set so that the cutting auxiliary surface 27 is positioned on the same plane as the cut surface 12 when the flange portion 17a is engaged with the peripheral edge of the installation hole 11a. Has been.

  The auxiliary base 17 is urged upward by the urging means 28 in the installation hole 11a, and in a normal state (a state in which no pressing force is applied to the cutting auxiliary surface 27), the flange portion 17a is connected to the installation hole 11a. The cutting assist surface 27 is engaged with the peripheral edge to form a part of the cut surface 12, and the movable upper limit position is the normal position. Further, the auxiliary base 17 reaches a movable lower limit position when the biasing means 28 receives a drag force larger than the biasing force in the installation hole 11a, and this lower limit position becomes a displacement position. In this embodiment, a plurality of springs 28a (four in the example shown in FIG. 5) are provided as the biasing means 28, and are attached to the spring base 28b. Each spring 28a is located inward of the installation hole 11a so that the auxiliary table 17 is horizontal (along the XY plane), in other words, the auxiliary cutting table 27 always maintains a parallel relationship with the cut surface 12 while the auxiliary cutting surface 27 is in parallel. Is set to be biased upward. Each spring 28a receives a pressing force downward from the cutting blade 15 in a state where the cutting blade 15 is in contact with the cutting assist surface 27, that is, the spring 28a is received via both cutting blade support portions 26a and 26b. It is set to an elastic force that contracts by the pressing force from the pressing column 24b of the cutting blade lifting / lowering driving mechanism 24 and allows the auxiliary table 17 to descend. The function of the auxiliary base 17 will be described in order along FIGS. 6A to 6E. FIG. 6 shows a scene in which the posture of the cutting table 11 is adjusted so that the auxiliary table 17 is aligned with the extending direction of the cutting blade 15 on the pressing axis P.

  When the cutting blade 15 is pushed down toward the sheet member 13 placed on the cut surface 12 by the pressing force from the pressing column 24b (see FIGS. 2 and 3) of the cutting blade lifting drive mechanism 24, the cutting blade 15 is moved to the sheet. It abuts on the upper surface of the member 13 (see FIG. 6A).

  When the cutting blade 15 is further pushed down, the cutting blade 15 locally presses the sheet member 13 and starts to enter (cut) the sheet member 13 as shown in FIGS. 6B and 6C. .

  The cutting blade 15 is further pushed down, and the cutting blade 15 reaches the lower surface of the sheet member 13 as shown in FIG.

  The cutting blade 15 is further pushed down, and the cutting blade 15 penetrates the sheet member 13 and starts pressing the cutting assist surface 27 of the auxiliary base 17 as shown in FIG. Then, as described above, the auxiliary base 17 is lowered. As a result, the sheet member 13 is appropriately and reliably cut by the cutting blade 15.

  In the present embodiment, the sheet member 13 to be cut by the sheet member cutting device 10 is processed in advance before being placed on the cut surface 12, and the plate pieces 14a and 14b are processed by the processing. The boundary position (contour position after cutting) is also determined. Further, the sheet member 13 is provided with a positioning hole 13a, and the cutting surface 12 is provided with a positioning pin 12a so as to correspond to this, so that the sheet member 13 is placed on the cutting surface 12 at an appropriate position. And each auxiliary stand 17 will be located in the position corresponding to the boundary position (contour position after cutting) of board piece 14a and board piece 14b. As shown in FIG. 1, the sheet member 13 includes a cutting position for cutting the plate piece 14a at a portion surrounded by the two short side auxiliary bases 17b on the left side and the two pairs of long side auxiliary bases 17a on the left side. The portion surrounded by the two short side auxiliary bases 17b on the right side (the short side auxiliary base 17b in the center is common) and the two pairs of long side auxiliary bases 17a on the right side is cut for cutting the plate piece 14b. Position. Here, with respect to the boundary position (contour position after cutting) of the plate piece 14a and the plate piece 14b, a gap is provided between each short side auxiliary table 17b and each long side auxiliary table 17a. In the case of the sheet member 13 of the present embodiment, it is because cuts are formed at locations corresponding to the gaps by the processing applied in advance.

  As described above, in response to the determination of the boundary position (the contour position after cutting) in the sheet member 13 to be cut, the sheet member cutting apparatus 10 includes the Y-axis direction moving mechanism 20 and the X-axis direction movement. A control mechanism (not shown) that comprehensively controls the mechanism 21, the rotation mechanism 22, the cutting blade selection mechanism 23, and the cutting blade lifting / lowering driving mechanism 24 is configured to be able to read the sheet barcode. A control mechanism (not shown) can acquire a boundary position (contour position after cutting) of each plate piece according to processing applied to the sheet member (13) to be cut by reading a sheet barcode. it can. Further, as shown in FIG. 3, the sheet member cutting apparatus 10 is provided with a camera 29 capable of photographing the cut surface 12 and an illumination 30 capable of irradiating the cut surface 12. The control mechanism described above shoots the sheet member 13 placed on the cut surface 12 with the illumination 29 while photographing with the camera 29, thereby processing the sheet member 13 (for example, the plate piece 14 a and the plate piece). 14b, the front and back of the sheet member, etc.), and placed on the cut surface 12 by comparison with the boundary position of each plate piece (14a, 14b) in the sheet member 13 obtained from the sheet barcode. It is possible to recognize an appropriate cutting position in the sheet member 13 and correct the cutting position by appropriately adjusting the posture of the cutting table 11 so that the placed sheet member 13 can be cut at an appropriate cutting position. It is possible to do. For this reason, in the sheet member cutting device 10, the camera 29 and the control device (not shown) function as individual piece position recognition means for recognizing the contour position of each plate piece of the sheet member.

  Next, the process of cutting from the sheet member 13 in the sheet member cutting apparatus 10 will be described with reference to the flowchart shown in FIG.

  A control mechanism (not shown) reads a preset sheet barcode, and then the boundary position between the plate piece 14a and the plate piece 14b according to the processing applied to the sheet member 13 to be cut (contour position after cutting). Is acquired (step S1).

  The operator places the sheet member 13 corresponding to the object to be cut on the cut surface 12 so that the positioning pins 12a (not shown) corresponding to the positioning holes 13a are inserted and come into surface contact (Step S2). . In the present embodiment, the oversheet 18 is also placed on the cut surface 12 so as to cover the sheet member 13.

  The sheet member 13 and the oversheet 18 are sucked and fixed to the cut surface 12 by the suction of the suction device through the suction holes 16a and the suction connection ports 16b (step S3).

  A control mechanism (not shown) compares the processing performed on the sheet member 13 recognized through the camera 29 with the boundary positions of the plate pieces 14a and 14b in the sheet member 13 obtained from reading of the sheet barcode. Thus, it is determined whether or not the placed sheet member 13 corresponds to a cutting target and whether or not the sheet member 13 is placed in an appropriate state (for example, reverse of the front and back) (step) S4). If the corresponding sheet member 13 is placed in an appropriate state, the process proceeds to step S5, and if the sheet member 13 is not a corresponding sheet member or not placed in an appropriate state, the process returns to step S2. Needless to say, the oversheet 18 is formed of a material that does not hinder recognition of processing applied to the sheet member 13 by the camera 29.

  A control mechanism (not shown) compares the processing performed on the sheet member 13 recognized through the camera 29 with the boundary positions of the plate pieces 14a and 14b in the sheet member 13 obtained from reading of the sheet barcode. Thus, it is determined whether or not the boundary position of each plate piece processed on the sheet member 13 is positioned on each auxiliary base 17 (step S5). If it is located on each auxiliary table 17, the process proceeds to step S6, and if not located on each auxiliary table 17, the process returns to step S2. In addition, when returning to step S2 in step S4 and step S5, it shall be set as the structure which does not perform the cutting | disconnection of the mounted sheet | seat member 13, for example, a structure which makes an operator recognize with a warning sound, a warning light, etc. (Refer to step S2 'shown by a broken line).

  A control member (not shown) appropriately selects the two cutting blades 15a and 15b while appropriately adjusting the posture of the cutting table 11 so that it can be appropriately cut along the contour positions of the plate pieces 14a and 14b, and a sheet member 13, the long-side cutting blade 15 a is pressed against the cutting position on the long-side auxiliary table 17 a, and the short-side cutting blade 15 b is pressed to the cutting position on the short-side auxiliary table 17 b in the sheet member 13. 13 cuts each boundary position of each plate piece 14a, 14b (step S6). By cutting the boundary positions, the plate pieces 14a and 14b are cut from the sheet member 13. At this time, the oversheet 18 is also cut together with the sheet member 13.

  While releasing the suction fixation by suction of the suction device through each suction hole 16a and suction connection port 16b, the plate pieces 14a and 14b cut by a suction pad (not shown) are picked up from the cut surface 12 and a sheet member 13 is removed from the cut surface 12 (step S7).

  By repeating the above-described steps, desired plate pieces 14a and 14b can be manufactured.

  Here, in the example shown in FIGS. 1 to 7, the plate pieces 14a and 14b are cut (manufactured) from the sheet member 13 by cutting for easy understanding. However, the present invention is not limited to this. For example, as shown in FIG. 8, 70 plate pieces 14 ′ can be manufactured from one sheet member 13 ′ by cutting. Even in this case, as shown in FIG. 9 which is an enlarged view of the three plate pieces 14 ′ at the upper end in FIG. 8, the auxiliary base is adapted to correspond to the cutting position of the sheet member 13 ′ to be cut. By providing 17 ′, 70 plate pieces 14 ′ (see FIG. 8) can be manufactured by cutting from one sheet member 13 ′ in one step (see FIG. 7).

  Such plate pieces 14 and sheet members 13 were processed as nozzle plates 31 and 31 ′ which are components of the droplet discharge head 30 (30 a and 30 b) as shown in FIGS. 10 and 11. A nozzle plate sheet, a vibration plate sheet processed as the vibration plates 32 and 32 ′, or a flow path plate sheet processed as the flow path plates 33 and 33 ′ can be considered.

  FIG. 10 is a diagram illustrating an example of an edge shooter type droplet discharge head 30a. This droplet discharge head 30a is provided on a diaphragm 32 having a discharge energy generator 34 (electrodes for applying a discharge signal to the generator and a protective layer provided on the generator as needed are omitted). A nozzle plate 31 constituting an orifice (nozzle hole) 35, a liquid chamber (not shown) communicating with the orifice 35, and a flow path plate 33 forming a flow path 36. In the droplet discharge head 30a, a recording signal is sent to the discharge energy generator 34 via an electrode (not shown) in a state where the ink is filled in the flow path 36 from a liquid chamber (not shown) in which ink is stored. When applied, the discharge energy generated from the generator acts on the ink in the flow path 36 above the discharge energy generator 34 (discharge energy operation section), and as a result, the ink is discharged from the orifice (nozzle hole) 35 as a droplet. Discharged. The ejected ink droplets are attached to a recording material such as paper fed in front of the orifice (nozzle hole) 35.

  The edge shooter type liquid droplet ejection head 30a as shown in FIG. 10 has the advantage that each part can be precisely miniaturized and orifices or miniaturized very easily and has high productivity. On the other hand, there is a limit to the response frequency at the time of ink droplet ejection and the suitable flight speed of ink. In addition, bubbles are generated in the ink as the electrothermal conversion element generates heat. The bubbles contract due to a decrease in temperature, and the discharge energy generator 34 is gradually destroyed by an impact when the bubbles disappear in the vicinity of the discharge energy generator 34. Is done. This phenomenon is called a cavitation phenomenon and is remarkable in the edge shooter system. For this reason, the life of an edge shooter type recording head is relatively short.

  FIG. 11 is a cross-sectional view showing the discharge of the side shooter type droplet discharge head 30b. This droplet discharge head 30b is provided with an orifice (nozzle hole) 35 'in a nozzle plate 31' and the direction of ink flow to the discharge energy acting portion in the flow path 36 'and the orifice (nozzle) as shown by the one-dot chain line. Hole) 35 ′ and a configuration perpendicular to the central axis of the opening. With such a configuration, the energy from the discharge energy generator 34 'can be more efficiently converted into the formation of ink droplets and the kinetic energy of the flight, and the meniscus can be quickly restored by supplying ink. This is particularly effective when a heating element is used as the discharge energy generator. Further, the side shooter can avoid a so-called cavitation phenomenon in which the discharge energy generator 34 'is gradually destroyed by an impact when bubbles that are a problem in the edge shooter disappear. That is, when bubbles grow in the side shooter and the bubbles reach the orifice (nozzle hole) 35 ', the bubbles are brought into the atmosphere, and the bubbles do not contract due to a temperature drop. Therefore, there is an advantage that the life of the droplet discharge head 30b is long.

  As described above, in the sheet member cutting apparatus 10, the cutting assist surface 27 of the auxiliary base 17 is formed on a part of the cut surface 12. By cutting the sheet member 13 on the cutting assist surface 27, the sheet is cut. The cutting blade 15 can be pushed down to a position penetrating the member 13 and the sheet member 13 can be cut reliably. When the cutting blade 15 penetrates the sheet member 13, the abutting cutting assisting surface 27 is lowered, so that the cutting is performed. Wear, damage, etc. of the blade 15 and the cutting assisting surface 27 can be prevented.

  Further, in the sheet member cutting apparatus 10, the cutting including the cutting auxiliary surface 27 of the auxiliary base 17 is performed until the cutting blade 15 penetrates the sheet member 13, that is, while the cutting blade 15 is cutting the sheet member 13. Since the surface 12 makes the sheet member 13 flat, it is possible to prevent the vicinity of the cut portion from being deformed. This is because part of the pressing force from the cutting blade 15 cuts the sheet member 13 until the cutting blade 15 penetrates the sheet member 13, that is, while the cutting blade 15 is cutting the sheet member 13. This is because the auxiliary base 17 will not be displaced.

  Furthermore, in the sheet member cutting apparatus 10, since the relative positional relationship may be set so that the cutting blade 15 abuts on the cutting assist surface 27 of the auxiliary base 17, the upper and lower roller blades facing each other as in the past are used. Compared with the provision of the cutting blade, the cutting table and the lifting table, the cutting blade 15 and the cut surface (the cutting auxiliary surface 27 which forms the position in the above-described embodiment) without requiring high accuracy. The sheet member 13 can be appropriately cut without deforming the vicinity of the cut portion while preventing wear or damage.

  The sheet member cutting device 10 can produce a plate piece cut from the sheet member by appropriately cutting the sheet member without deforming the vicinity of the cutting portion, and thus is highly assembled while being a very thin and small member. It is suitable for manufacturing the nozzle plate 31, the flow path plate 33, or the vibration plate 32, which are components of the droplet discharge head 30 that requires high accuracy. In other words, if the droplet discharge head 30 is manufactured by assembling the components formed using the sheet member cutting device 10 (using the sheet member cutting method according to the present invention), higher-quality droplet discharge The head 30 can be obtained.

  In the sheet member cutting device 10, while the cutting blade 15 is cutting the sheet member 13, the cutting surface 12 including the cutting assist surface 27 of the auxiliary base 17 makes the sheet member 13 flat so that the vicinity of the cutting portion Therefore, it is not necessary to cut while holding the vicinity of the cutting position (holding allowance) as in the prior art, and a plurality of plate pieces, for example, nozzles, can be used by effectively using the sheet member 13. The plate 31, the flow path plate 33, or the diaphragm 32 can be manufactured.

  In the sheet member cutting device 10, each plate piece (for example, a nozzle plate) whose cutting position from the processed nozzle plate sheet, flow path plate sheet, or diaphragm plate is recognized by the cooperation of the camera 29 and the control mechanism. 31, the flow path plate 33 or the vibration plate 32) is determined based on the boundary position, so that each piece can be cut out (manufactured) from the sheet member by cutting at an appropriate location according to the applied processing. It is possible to manufacture a plurality of plate pieces, for example, the nozzle plate 31, the flow path plate 33 or the vibration plate 32, which have contour positions that match processing performed with high accuracy.

  In the sheet member cutting device 10, the cutting blade 15 and the cutting assisting surface 27 are worn or damaged only by appropriately adjusting the urging force of the urging means 28 (the elastic force of the plurality of springs 28a in the above embodiment). The sheet member 13 can be appropriately cut without deforming the vicinity of the cutting portion while preventing the sheet member 13 from being deformed, and the desired plate pieces (the plate pieces 14a and 14b in the above-described embodiments, for example, The nozzle plate 31, the flow path plate 33 or the vibration plate 32) can be cut out (manufactured) by cutting.

  In the sheet member cutting device 10, the cutting assist surface 27 is formed of a member having a hardness lower than that of the cutting blade 15, so that the cutting blade 15 can be prevented from being damaged when the cutting assist surface 27 is pressed.

  In the sheet member cutting device 10, the sheet member 13 can be cut in a state where the sheet member 13 is fixed to the cut surface 12. Therefore, the sheet member 13 can be cut more appropriately without deforming the vicinity of the cutting portion. In particular, in the above-described embodiment, the sheet member 13 can be cut in a state where the sheet member 13 is adsorbed and fixed to the cut surface 12, and therefore the sheet member 13 can be cut in a state where the sheet member 13 is in close contact with the cut surface 12. The sheet member 13 can be more appropriately cut without deforming the vicinity of the cutting portion.

  In the sheet member cutting apparatus 10, the oversheet 18 covering the sheet member 13 is brought into contact with the cut surface 12 together with the sheet member 13, and the sheet member 13 is cut together with the oversheet 18. The sheet member 13 can be cut in a state of being in close contact with the sheet member, and foreign matter can be prevented from adhering to the sheet member 13 (plate pieces 14a and 14b) during cutting.

  In the sheet member cutting apparatus 10, the positional relationship between the cut surface 12 and the sheet member 13 is obtained by cooperation between a positioning pin 12 a (not shown) provided on the cutting table 11 and a positioning hole 13 a provided in the sheet member 13. Can be easily and reliably appropriate, and a more appropriate position in the sheet member 13 can be cut.

  In the sheet member cutting device 10, the clamping portion 26 d of the cutting blade support portion (26 a, 26 b) that holds the cutting blade 15 is cut in the XY plane with respect to the positioning block 261 (Y-axis direction in the cutting blade support portion 26 a). Since the cutting blade 15 is clamped by the pressing block 263 that is movable along the X-axis direction in the blade support portion 26b and urged in the direction in which the blades 262 are in contact with each other, the cutting is performed. The cutting blade 15 can be easily arranged at an appropriate position with respect to the surface 12, and the cutting blade 15 can be easily replaced while preventing the position from changing.

  In the sheet member cutting method according to the present invention and the method of manufacturing the components of the droplet discharge head (implemented by using the sheet member cutting device 10 in the above-described embodiment), the above-described sheet member cutting device 10 is used. The effect equivalent to the effect which can be acquired by this can be acquired.

  Manufacturing method of a droplet discharge head according to the present invention (in the above-described embodiment, each component of the droplet discharge head 30 formed using the sheet member cutting device 10 (in the above-described embodiment, a nozzle plate 31 as an example) In this case, the liquid droplet ejection head 30 is manufactured by assembling each of the components including at least one of the flow path plate 33 or the vibration plate 32), and can be obtained by using the sheet member cutting device 10 described above. The effect equivalent to the effect that can be obtained can be obtained, the assemblability can be improved, and the yield can be improved.

  Therefore, in the sheet member cutting method and the sheet member cutting apparatus 10 to which the sheet member is applied according to the present invention, the cutting portion 15 or the cut surface 12 (including the cutting assist surface 27) is prevented from being worn or damaged while being cut. The sheet member 13 can be appropriately cut without deforming the vicinity.

  In the above-described embodiment, the sheet member 13 is directly placed on the cutting surface 12. However, as shown in FIG. 12, the sheet member 13 is placed on the cutting surface 12 with the gripping tool 37 gripped. You may do. When such a gripping tool 37 is used, as a means for fixing the sheet member 13 to the cutting table 11, as shown in FIG. 13, a magnet 38 for attracting and fixing the gripping tool 37 is attached to the edge of the cutting table 11. As shown in FIG. 14, a holding device 39 for holding and fixing the gripping tool 37 can be provided at the edge of the cutting table 11. Further, as shown in FIG. 15, when the magnet 38 is provided at the edge of the cutting table 11, the cylinder mechanism 40 capable of adjusting the relative height positional relationship between the adsorption height position of the magnet 38 and the cut surface 12 is provided. By providing, it is possible to easily pick out each cut piece and remove the placed sheet member.

  In the above-described embodiment, a plurality of springs 28 a are used as the biasing means 28 of the auxiliary base 17. However, the cutting blade 15 is in contact with the cutting assist surface 27 and is moved downward from the cutting blade 15. , That is, it is assisted by an urging force that contracts due to the pressing force from the pressing column 24b of the cutting blade lifting drive mechanism 24 received through the both cutting blade support portions 26a and 26b and allows the auxiliary base 17 to descend. For example, as shown in FIG. 16, an air spring 28c may be used as long as the base 17 is urged, and the embodiment is not limited to the above-described embodiment.

  Further, in the above-described embodiment, the fixing means for fixing the sheet member 13 to the cutting table 11 is configured to be sucked and fixed to the cut surface 12 by suction of the suction device through the suction holes 16a and the suction connection ports 16b. As long as the sheet member 13 is fixed to the cutting table 11 in a state where the sheet member 13 is in surface contact with the cut surface 12, the sheet member 13 is not limited to the above-described embodiment. For example, when the sheet member 13 is a magnetic body, it can be attracted and fixed by providing a magnet 38 'on the cut surface 12, as shown in FIG. As shown in FIG. 18, when the magnet 38 ′ is provided on the cutting surface 12, a cylinder mechanism 40 ′ capable of adjusting the state where the magnet 38 ′ and the cutting table 11 are in contact with or separated from each other is provided. By providing a suction recess 38a that can be received while being attracted to the magnet 38 ', it is possible to easily take out the placed sheet member and the cut plate pieces.

  In the above-described embodiments, the sheet member cutting device 10 is used to perform the sheet member cutting method, the droplet discharge head component manufacturing method, and the droplet discharge head manufacturing method according to the present invention. However, cutting is performed using a cutting table provided with an auxiliary base that can be displaced so as to partially dent the cutting surface by the pressing force from the cutting blade that is in contact while forming a part of the cutting surface. The sheet member is brought into contact with the flat cutting surface formed by the table, the cutting blade enters the sheet member from a position facing the cutting auxiliary surface, and the cutting blade is brought into contact with the cutting auxiliary surface formed by the auxiliary table. What is necessary is just to cut | disconnect a sheet | seat member by penetrating a sheet | seat member with a cutting blade, and it is not limited to an above-described Example.

  The present invention has been described in detail based on the embodiments. However, the present invention is not limited to this specific configuration, and design changes that do not depart from the spirit of the present invention are included in the technical scope of the present invention.

It is the typical top view which looked at the cut surface of the cutting stand from upper direction in order to demonstrate the structure of the sheet | seat member cutting device which concerns on this invention. It is the fragmentary sectional view obtained along the II line of FIG. It is the fragmentary sectional view obtained along the II-II line of FIG. It is explanatory drawing which shows typically the clamping part of the cutting blade support part which hold | maintains a cutting blade, (a) shows the state holding the cutting blade, (b) separated the pressing block to hold a cutting blade. Shows the state. It is a typical perspective view for demonstrating an auxiliary stand and its energizing means. In order to explain the function of the auxiliary table, a situation is shown in which the posture of the cutting table is adjusted so that the auxiliary table is aligned with the extending direction of the cutting blade on the pressing axis, (a) The state in which the cutting blade is in contact with the upper surface of the sheet member is shown, (b) shows the state in which the cutting blade has started pressing the upper surface of the sheet member, and (c) is the state in which the cutting blade has started to cut the sheet member (D) shows a state in which the cutting blade has reached the lower surface of the sheet member, and (e) shows a state in which the cutting blade has pressed the cutting auxiliary surface and lowered the auxiliary table. It is a flowchart which shows the process of cutting from the sheet member in a sheet member cutting device. It is a front view which shows the other example of a sheet | seat member. It is a front view which expands and shows three board pieces 14 'of the upper end of FIG. FIG. 2 is a cross-sectional view schematically showing an edge shooter type droplet discharge head. It is sectional drawing which shows typically the side shooter type droplet discharge head. It is a front view which shows typically the state which hold | gripped the sheet | seat member with the holding tool. It is explanatory drawing for demonstrating a mode that the sheet | seat member hold | gripped with the holding tool was fixed to the cutting stand with the magnet as a fixing means. It is explanatory drawing for demonstrating a mode that the sheet | seat member hold | gripped with the holding tool was fixed to the cutting stand with the holding device as a fixing means. It is explanatory drawing for demonstrating the example which provided the cylinder mechanism which fixes the sheet | seat member hold | gripped with the holding tool to the cutting stand with the magnet as a fixing means, and makes it easy to attach or detach. It is explanatory drawing for demonstrating the example in which the air spring was used as a biasing means of an auxiliary stand. It is explanatory drawing for demonstrating a mode that the sheet | seat member was fixed to the cutting stand with the magnet as a fixing means. It is explanatory drawing for demonstrating the example which provided the cylinder mechanism which fixes a sheet | seat member to a cutting stand with the magnet as a fixing means, and makes it easy to attach or detach.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Sheet | seat member cutting device 11 Cutting stand 12 Cutting surface 13 Sheet | seat member 13a Positioning hole 15 (as positioning means) 15 Cutting blade 16 Fixing means 16a Suction hole 17 Auxiliary base 18 Oversheet 26d (as supporting member) of cutting blade support part Clamping location 261 Positioning block 263 Pressing block 28 Biasing means 27 Cutting assisting surface 28a Spring 28c (as biasing means) Air spring 30 (As biasing means) Air droplet 30 Droplet discharge head 31 Nozzle plate 32 Vibration plate 33 Flow path plate

Claims (14)

The sheet member is brought into contact with a flat cut surface formed by the cutting table, and the sheet member is cut by bringing a cutting blade into the sheet member from a position opposed to the cut surface and bringing it into contact with the cut surface. Cutting method,
As the cutting table, there is provided an auxiliary table that can be displaced so as to partially dent the cutting surface by a pressing force from the cutting blade that is in contact with the cutting surface while forming a part of the cutting surface. The cutting blade is caused to enter the sheet member, the cutting blade is brought into contact with a cutting auxiliary surface formed by the auxiliary base, and the sheet member is cut by passing through the sheet member with the cutting blade. A method for cutting a sheet member.   A nozzle plate having a nozzle hole for discharging ink as a component part of a droplet discharge head by cutting the sheet member into individual pieces using the sheet member cutting method according to claim 1. Or a manufacturing method of a component part of a droplet discharge head, wherein a flow path plate in which a liquid chamber communicating with the nozzle hole is formed or a vibration plate that changes a volume of the liquid chamber is manufactured.   The component of the droplet discharge head according to claim 2, wherein the plurality of nozzle plates, the plurality of flow path plates, or the plurality of diaphragms are manufactured from a single sheet member. Production method. As the sheet member, a nozzle plate sheet processed to form a plurality of nozzle plates, a flow path plate sheet processed to form a plurality of flow path plates, or a plurality of the vibration plates Using a diaphragm sheet that has been processed to form
A nozzle plate sheet, or a flow path plate sheet, or a diaphragm plate is brought into contact with the cut surface of the cutting table,
The cutting position by the cutting blade is recognized based on the boundary position of each piece in the contacted nozzle plate sheet, flow channel plate sheet, or diaphragm plate, which is recognized by using the piece position recognition means. The method for manufacturing a component part of a droplet discharge head according to claim 3, wherein the method is determined.   A nozzle plate having a nozzle hole for discharging ink as a component part of a droplet discharge head by cutting the sheet member into individual pieces using the sheet member cutting method according to claim 1. Or each flow path plate in which a liquid chamber communicating with the nozzle hole is formed, or at least one of a vibration plate for changing the volume of the liquid chamber, and each of the components including the formed component parts A method for manufacturing a droplet discharge head, comprising assembling parts to manufacture a droplet discharge head. A cutting table that forms a flat cut surface with which a sheet member is abutted, and a cutting blade that is movable in a direction substantially orthogonal to the cut surface at a position facing the cut surface. A cutting device that cuts the sheet member by entering the sheet member and bringing it into contact with the cut surface,
On the cutting table, a cutting assist surface is formed at a position where the cutting blade comes into contact with the cutting surface by movement in a direction substantially orthogonal to the cutting surface, and the pressing force from the contacted cutting blade is used. An apparatus for cutting a sheet member, characterized in that an auxiliary base is provided that is displaceable in a direction in which the cutting auxiliary surface is recessed from the cut surface so as to partially dent the cut surface. The auxiliary table is between a normal position where the cutting auxiliary surface forms the same plane as the cutting surface, and a displacement position displaced along the moving direction of the cutting blade to dent the cutting surface from the cutting position. And is held by the cutting table so as to be movable, and is biased toward the normal position from the displacement position by a biasing means,
The urging means is set to an urging force that allows displacement from the normal position to the displacement position by receiving a pressing force from the cutting blade on the cutting assist surface. The sheet | seat member cutting device of description.   The said auxiliary | assistant stand is formed with the material whose hardness which is lower than the said cutting blade, and the part which the said cutting blade contact | abuts and forms the said cutting auxiliary surface is characterized by the above-mentioned. Sheet member cutting device.   The sheet according to any one of claims 6 to 8, wherein the cutting table is provided with a fixing and holding unit that fixes the sheet member in contact with the cut surface. Member cutting device.   The sheet member cutting device according to claim 9, wherein the fixing and holding unit includes a suction hole that opens the cut surface, and a suction unit that can suck air from the suction hole.   The fixing and holding means fixes the sheet member that is in contact with the cutting table and the oversheet that is in contact with the cutting table while covering the sheet member to the cutting surface. The sheet | seat member cutting device of Claim 9 or Claim 10.   12. The cutting table and the sheet member are provided with positioning means for bringing the sheet member into contact with the cut surface in an appropriate positional relationship. The sheet member cutting device according to claim 1. The cutting blade is held by a support member capable of changing a relative distance from the cutting table,
The support member includes a positioning block capable of changing a relative distance from the cutting table, a pressing block provided to face the positioning block, and biasing the pressing block toward the positioning block. 13. The cutting blade according to claim 6, wherein the cutting blade is sandwiched between the positioning block and the pressing block by an urging force of the spring. Sheet member cutting device. The sheet member is a component part of a droplet discharge head, which is a nozzle plate sheet processed to form a nozzle plate in which nozzle holes for discharging ink are formed, or a component part of a droplet discharge head. A flow path plate sheet processed to form a flow path plate in which a liquid chamber communicating with the nozzle hole is formed, or a vibration plate processed to form a vibration plate that changes the volume of the liquid chamber A sheet is used, the nozzle plate sheet is cut into individual pieces to form the nozzle plate, or the flow passage plate sheet is cut into pieces to form the flow passage plate, or the diaphragm The sheet member cutting device according to any one of claims 6 to 13, wherein the diaphragm sheet is cut into individual pieces so as to form a sheet.

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