WO2019082565A1 - Method for manufacturing resin molded body and molding die for molding same - Google Patents

Method for manufacturing resin molded body and molding die for molding same

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Publication number
WO2019082565A1
WO2019082565A1 PCT/JP2018/035058 JP2018035058W WO2019082565A1 WO 2019082565 A1 WO2019082565 A1 WO 2019082565A1 JP 2018035058 W JP2018035058 W JP 2018035058W WO 2019082565 A1 WO2019082565 A1 WO 2019082565A1
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WIPO (PCT)
Prior art keywords
molding
cutting punch
resin
mold
resin molded
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PCT/JP2018/035058
Other languages
French (fr)
Japanese (ja)
Inventor
宏樹 野澤
今井　聖
Original Assignee
株式会社ケーヒン
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 株式会社ケーヒン filed Critical 株式会社ケーヒン
Priority to CN201880066159.XA priority Critical patent/CN111246984B/en
Publication of WO2019082565A1 publication Critical patent/WO2019082565A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/12—Moulds or cores; Details thereof or accessories therefor with incorporated means for positioning inserts, e.g. labels
    • B29C33/14—Moulds or cores; Details thereof or accessories therefor with incorporated means for positioning inserts, e.g. labels against the mould wall
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/20—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for assembling or disassembling contact members with insulating base, case or sleeve
    • H01R43/24—Assembling by moulding on contact members

Definitions

  • the present invention relates to a method of manufacturing a resin molded body in which a plurality of bus bars are provided in a line and a mold for molding the same.
  • a mold comprising one mold and the other mold is prepared, and a plurality of bus bars connected by tie bars are set to the one mold, and one mold and the other Clamp the mold and the mold.
  • the cutting punch provided to the other mold so as to be movable back and forth, and retracting the cutting punch to fill the resin in the mold cavity.
  • a desired resin molding can be obtained by incorporating this terminal into a separately molded housing.
  • a projecting portion which protrudes from a reference surface of the resin molded body may be formed, and a terminal may be disposed on the projecting portion.
  • the projecting portion is provided with a wall surface extending at an angle to the reference surface of the resin molded body.
  • the terminal comprises end portions of a plurality of bus bars, and elements of other electronic devices are connected to the end portions of these bus bars, positioning accuracy is required of the end portions of the plurality of bus bars. Therefore, if the tie bar can be provided as close as possible to the terminal, the positional accuracy between the plurality of bus bars is improved.
  • the other mold is provided with a wall molding surface for molding the wall surface of the projecting portion, and it is necessary to provide a cutting punch at a position at a certain distance from the wall molding surface for securing thickness.
  • the tie bar must be provided at a position away from the wall surface of the projection where the terminal is disposed.
  • An object of the present invention is, in view of the problems of the prior art, to provide a method of manufacturing a resin molded product in which the position of the tie bar can be arranged close to the wall surface after arranging the cutting punch in the mold. It is.
  • a plurality of conductive bus bars connected to one another by tie bars are set in one of the two molds of the mold used for resin molding constituted by at least two molds, In the other of the two molds, the bond is cut inside the cavity filled with the resin of the mold by the advancing state of the cutting punch set to be retractable. After the bond is cut, the cavity is filled with resin, and when the resin filling is completed, the cutting punch is in a retracted state, and the resin is filled between the cutting punch blade and the cut tie bar.
  • the number of assembling steps is reduced compared to the case where the plurality of bus bars are separately set. Be done.
  • the bond bar of the tie bar is cut by the advancing state of the cutting punch set to the other type so as to be able to move back and forth, and the resin is inserted between the cutting punch blade and the cut tie bar because the cutting punch is retreated when resin filling is complete. Be filled.
  • the reference surface of the resin molding is formed by the mold reference surface arranged away from the bus bar of the other mold, but at least a part of the wall surface extending at an angle to the reference surface is retracted by the cutting punch Even in the state, since it is formed by the side surface of the cutting punch exposed to the inside of the mold cavity, the cutting punch can be disposed at a position in contact with the wall surface. Since the cutting punch for cutting the tie bar is in contact with the wall surface, it is possible to arrange the position of the tie bar close to the wall surface after arranging the cutting punch in the mold.
  • a side surface of the cutting punch that extends at a side surface of the cutting punch that forms at least a part of the wall surface and extends inside the cavity of the mold even in the retracted state of the cutting punch
  • at least a part of a rib shape that exposes and joins the wall surface and the reference surface is formed.
  • the side surface of the cutting punch which is bent and extended from the side surface of the cutting punch that forms at least a part of the wall surface, is formed inside the mold cavity even in the retracted state of the cutting punch. Since it is exposed, the rib which reinforces the wall surface of the resin molding can be molded simultaneously with the molding of the wall surface.
  • a mold for molding a resin molding constituted by at least two molds, wherein One of the two types is provided with a support to which a plurality of conductive bus bars coupled together by tie bars are set. The other of the two types is provided with a cutting punch that cuts the bond to allow for advancement and withdrawal; When the resin is filled into the cavity of the mold, the cutting punch can be in a retracted state, and molding is performed to form a resin molded body which can be filled with the resin between the cutting punch and the tie bar.
  • the other mold is a shape surface for molding a product shape to be a reference surface of the resin molded body, and is provided with a mold reference surface which is disposed apart from the bus bar, A wall surface which is exposed to the inside of the cavity even in a state in which the cutting punch is retracted on at least a part of the side surface of the cutting punch, and a wall surface extending at an angle to the reference surface of the resin molded body by the side surface
  • a wall molding surface is provided for molding at least a part of.
  • the plurality of bus bars should be primarily set.
  • the other mold is provided with a cutting punch set to be able to move forward and backward, and the connection of the tie bar is cut by the advancing state of the cutting punch, and when the resin filling is completed, it is cut with the cutting punch blade since the cutting punch is in a retracted state. The resin is filled in between the tie bars.
  • a mold reference surface is provided apart from the bus bar of the other mold, and the mold reference surface forms the reference surface of the resin molded body, and at least one of the wall surfaces extending at an angle to the reference surface. Since the portion is formed by the side surface of the cutting punch exposed to the inside of the cavity of the mold even in the retracted state of the cutting punch, the cutting punch can be disposed in contact with the wall surface. Since the cutting punch for cutting the tie bar is in contact with the wall surface, it is possible to arrange the position of the tie bar close to the wall surface after arranging the cutting punch in the mold.
  • the side surface of the cutting punch is bent and extended from a wall forming surface for forming at least a part of the wall surface, and is exposed to the inside of the cavity even in the retracted state, and the wall surface and the reference surface
  • a rib forming surface is provided for forming at least a portion of the rib shape joining the two.
  • the wall surface is bent and extended from the wall molding surface for forming at least a part of the wall surface, and is exposed to the inside of the cavity even in a receding state, thereby the wall surface and the reference surface Since the rib forming surface for forming at least a part of the rib shape for bonding is provided, the rib for reinforcing the wall surface of the resin molded body can be formed simultaneously with the forming of the wall surface.
  • FIG. 1A is a perspective view of an essential part showing the structure of a resin molded product according to the present invention.
  • FIG. 1B is a perspective view of a bus bar and a substrate according to the present invention.
  • FIG. 2A is a cross-sectional view for explaining the process of setting the bus bar in the mold according to the present invention.
  • FIG. 2B is a cross-sectional view taken along line 2B-2B of FIG. 2A.
  • FIG. 3A is a cross-sectional view for explaining the step of cutting the tie bar according to the present invention.
  • FIG. 3B is a cross-sectional view taken along line 3B-3B of FIG. 3A.
  • FIG. 4A is a cross-sectional view for explaining a process of filling a cavity of a mold according to the present invention with a resin.
  • FIG. 4B is a cross-sectional view taken along line 4B-4B of FIG. 4A.
  • FIG. 4C is a cross-sectional view of a mold according to a comparative example.
  • a resin molded body 1 includes a main body 2, a protrusion 3 as a connector protruding from the main body 2, the protrusion 3 and the main body 2. And a rib 4 connecting the two.
  • a reference surface 5 of the resin molded body 1 is provided on the front side upper portion of the main body 2, and a wall surface 6 extending at an angle to the reference surface 5 is provided on the back side of the projecting portion 3.
  • the rib 4 is provided so as to connect and the reinforcing portion 7 is provided so as to connect the root portion of the rib 4, the reference surface 5 and the wall surface 6.
  • bus bar 11 As shown in FIG. 1B, the plurality of bus bars 11 are in a state before being set in the mold 20 (see FIG. 2A). The plurality of conductive bus bars 11 are coupled to one another by tie bars 12. Although the bus bar 11 is soldered to the substrate 10 after the molding of the resin molding 1, the substrate 10 is shown by an imaginary line to show the positional relationship with the bus bar 11 after the molding of the resin molding 1.
  • the bus bar 11 is formed in the middle of the lateral conduction portion 14, a proximal end 13 extending upward from the substrate 10 shown by a phantom line, a lateral conduction portion 14 extending laterally from the upper end of the proximal end 13, and Positioning holes 15 into which the holding pins 22 (see FIG. 2A) are inserted, a vertical conduction portion 16 extending upward from the end of the horizontal conduction portion 14, and other elements extending laterally from the upper end of the vertical conduction portion 16 And a terminal 17 electrically connected to an element or the like of the electronic device.
  • the bus bar 11 is provided integrally with the resin molded body 1 in a state where the resin molded body 1 is molded.
  • the horizontal conduction portion 14 of the bus bar 11 is disposed along the inside of the main body portion 2 of the resin molded body 1
  • the vertical conduction portion 16 is disposed substantially parallel to the wall surface 6 inside the projection 3
  • the projection The terminal 17 is disposed in the opening 8 of 3.
  • the reference surface 5 is parallel to the direction in which the plurality of bus bars 11 extend in common inside the resin molded body 1.
  • the mold 20 is for molding the resin molded body 1 constituted by at least two molds, and one mold 21 as a movable mold,
  • the other mold 31 as a fixed mold and a slide mold 41 for forming a so-called undercut portion of the resin molded body 1 are provided.
  • the slide die 41 is movably provided on the other die 31.
  • one of the two molds 21 has a support 23 on which a plurality of conductive bus bars 11 connected to one another by tie bars 12 are set and a cutting punch 32 described later cuts the connection of the tie bars 12.
  • a tip of the cutting punch 32 and a recess 24 for releasing the cut tie bar 12 are provided.
  • the other of the two molds 31 has a cutting punch 32 for cutting the connection of the plurality of bus bars by the tie bar 12 so as to be able to advance and retract, and a shape surface for forming a product shape to be the reference surface 5 of the resin molded body 1 And a mold reference surface 33 disposed apart from the bus bar 11 is provided.
  • At least a part of the side surface 34 of the cutting punch 32 is exposed to the inside of the cavity 50 even when the cutting punch 32 is retracted, and extends at an angle to the reference surface 5 of the resin molded body 1 by the side surface 34
  • a wall molding surface 35 for molding at least a part of the wall surface 6 is provided.
  • the side surface 34 of the cutting punch 32 is bent and extended from the wall forming surface 35 for forming at least a part of the wall surface 6 and exposed to the inside of the cavity 50 even in a receding state.
  • a rib forming surface 36 is provided which forms at least a portion of the rib 4 shape that joins the surface 5.
  • the slide mold 41 is provided with a terminal support portion 42 for supporting the terminal 17 which is the tip end portion of the bus bar 11.
  • a method of manufacturing the resin molded body 1 by the mold 20 described above will be described.
  • a plurality of conductive bus bars 11 coupled to one another by tie bars 12 are set in the support portion 23 of one of the molds 21, and the holding pins 22 are passed through the positioning holes 15. Position the bus bar 11 with respect to the position 21 (bus bar setting step).
  • One mold 21 is moved to the other mold 31 side, and as shown in FIGS. 3A and 3B, in the clamped state, the hollow 50 filled with the resin of the mold 20 by the advancing state of the cutting punch 32
  • the connection of the plurality of bus bars 11 by the tie bars 12 is broken inside.
  • the tip of the cutting punch 32 advances to the recess 24
  • the cut tie bar 12 is stored in a bent state in the recess 24, and the plurality of bus bars 11 are separated (tie bar cutting step) .
  • the cutting punch 32 is retracted. At this time, as shown in FIGS. 4A and 4B, the tip of the cutting punch 32 is retracted to the vicinity of the mold reference surface 33 to expose a part of the cutting punch 32 inside the cavity 50 of the mold 20 (cutting punch Backward process).
  • the inside of the cavity 50 is filled with the resin, and when the resin filling is completed, the cutting punch 32 is in the retracted state, and the resin is filled between the blade 37 of the cutting punch 32 and the cut tie bar 12 (resin filling step) .
  • the reference surface 5 of the resin molded body 1 is molded by the mold reference surface 33 which is a shape surface for molding the product shape of the resin molded body 1 of the other mold 31 and is disposed apart from the bus bar 11 (Reference surface forming process).
  • the side surface of the cutting punch 32 is exposed to the inside of the cavity 50 of the mold 20 even in the retracted state of the cutting punch 32, and the side surface 34 makes an angle with the reference surface 5 of the resin molded body 1 At least a part of the extending wall surface 6 is formed (the wall forming step of the cutting punch).
  • a side (rib forming surface) 36 which is a side surface 34 of the cutting punch 32 and which bends and extends from the side surface 34 of the cutting punch 32 for forming at least a part of the wall surface 6 Also by exposing the inside of the cavity 50 of the mold 20, at least a part of the shape of the rib 4 connecting the wall surface 6 and the reference surface 5 is formed (rib forming step of the cutting punch).
  • the blade 37 of the cutting punch 32 is inclined or dented from the tip to the proximal end, and the inclination or dent of the blade 37 of the cutting punch 32 is exposed to the inside of the cavity of the mold 20.
  • the reinforcement part 7 which reinforces the root of the rib 4 is formed (reinforcement part formation process of a cutting punch).
  • the reinforcing portion 7 can be formed simultaneously with the formation of the wall surface 6 and the rib 4 by the reinforcing portion forming step of the cutting punch. Further, the reinforcing portion 7 is added to the wall surface 6 of the resin molded body 1 and the base end of the rib 4 to improve the reinforcing effect.
  • the other mold 31 is retracted and opened, and the resin molded body 1 is taken out to obtain the resin molded body 1 in which the bus bars 11 are integrally provided.
  • FIG. 4C shows a forming die 100 of a comparative example, and the forming die 100 is configured of a stationary die 101, a movable die 102, and a slide die 103.
  • the fixed mold 101 is provided with a cutting punch 104 capable of advancing and retracting.
  • the cutting punch 104 is disposed at a distance L1 from the wall molding surface 105 for molding the wall surface of the resin molding.
  • the movable mold 102 is provided with a recess 106.
  • the fixed mold 101 of the comparative example is provided with the wall molding surface 105, it is cut at a position away from the wall molding surface 105 by a certain distance L1 as described above in order to secure the thickness from the cutting punch 104. Since it is necessary to provide the punch 104, it is necessary to provide a tie bar connecting between the bus bars at a position apart from the wall surface of the protrusion where the terminal of the resin molded body is disposed.
  • the plurality of bus bars 11 coupled to each other by the tie bar 12 are set at one of the two molds of the mold 20 at one time, the plurality of bus bars 11 are separated. The number of assembling steps is reduced compared to setting to.
  • the bond bar of the tie bar 12 is cut by the advancing state of the cutting punch 32 set to the other mold 31 so as to be able to move back and forth, and since the cutting punch 32 is retracted when resin filling is completed The resin is filled between 12 and.
  • the reference surface 5 of the resin molding 1 is formed by the mold reference surface 33 disposed apart from the bus bar 11 of the other mold 31, but at least one of the wall surfaces 6 extending at an angle to the reference surface 5.
  • the cutting punch 32 can be disposed in contact with the wall surface 6. Since the cutting punch 32 for cutting the tie bar 12 is in contact with the wall surface 6, after disposing the cutting punch 32 on the mold 20, the position of the tie bar 12 can be arranged close to the wall surface 6. Thereby, the positioning accuracy between the plurality of bus bars can be improved at a position close to the terminal 17, and as a result, the position accuracy of the terminal 17 can be improved.
  • a side (rib forming surface) 36 which is a side surface 34 of the cutting punch 32 and which bends and extends from the side surface 34 of the cutting punch 32 for forming at least a part of the wall surface 6 Since the inside of the mold cavity 50 is exposed as well, the rib 4 for reinforcing the wall surface 6 of the resin molding 1 can be molded simultaneously with the molding of the wall surface 6.
  • one mold 21 is a movable mold and the other mold 31 is a fixed mold.
  • the present invention is not limited thereto.
  • One mold 21 may be a fixed mold and the other mold 31 may be a movable mold.
  • the cutting punch 32 when the mold 20 is opened, the cutting punch 32 is moved forward, the other mold 31 is moved, and the tie bar 12 is cut by the cutting punch, but the invention is not limited thereto.
  • the cutting punch 32 When the mold 20 is opened, the cutting punch 32 may be in a retracted state, the other mold 31 may be moved, and after closing the mold, the cutting punch 32 may be advanced to cut the tie bar 12.
  • the cutting punch 32 is retracted and then the inside of the cavity 50 is filled with the resin.
  • the cutting punch 32 may be retracted when the inside of the cavity 50 is filled with the resin.
  • the filling of the resin into the cavity 50 may be started while the cutting punch 32 is being retracted.
  • SYMBOLS 1 Resin molded object, 4 ... Rib, 5 ... Reference plane, 6 ... Wall surface, 11 ... Busbar, 12 ... Tie bar, 20 ... Molding type, 21 ... One mold, 23 ... Support part, 31 ... The other mold, 32 ... cutting punch 33, type reference surface 34, side of cutting punch 35, wall forming surface 36, rib forming surface (surface that bends and extends from wall forming surface), 50: cavity.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

In the present invention, in one die 21, a plurality of electroconductive busbars 11, which are bonded to each other by a tie bar 12, are set. In another die 31 the bond is broken by the advancement of a cutting punch 32, which is set advanceably and retreatably, inside a cavity in a molding die 20. The cavity is for filling with a resin, where once the bond has been broken, the inside of the cavity is filled with the resin. A shape-forming surface of the other die 31, which is a die reference surface 33 that forms the product shape of a resin molded body 1 and that is disposed away from the busbars 11 forms a reference surface 5 of the resin molded body 1. Part of a side surface 34 of the cutting punch 32 remains exposed inside the cavity of the molding die 20 even when the cutting punch has retreated, and as a result, part of a wall surface 6 that extends at an angle with respect to the reference surface 5 of the resin molded body 1 is formed by the side surface 34.

Description

樹脂成形体の製造方法及びそれを成形する成形型METHOD FOR MANUFACTURING RESIN MOLDED BODY AND MOLDING DIE FORMING THE SAME
　本発明は、複数のバスバーが一列に並べて設けられた樹脂成形体の製造方法及びそれを成形する成形型に関する。 The present invention relates to a method of manufacturing a resin molded body in which a plurality of bus bars are provided in a line and a mold for molding the same.
　従来、樹脂成形体には、複数の導通性のバスバーが一列に並べられて、他の電子機器の素子等と電気的に接続されるターミナルを備えたものがある。ターミナルを構成する複数のバスバーは、ターミナルの製造時に一度に配置するため又は位置決め等のためにタイバーによって繋がれている。最終的にはタイバーが切断された状態でバスバーが一列に並べられてターミナルとなる。このような複数のバスバーが一列に並べられたターミナルを備えた樹脂成形体の製造方法が知られている（たとえば、特許文献１参照）。 2. Description of the Related Art Conventionally, there have been resin molded articles provided with terminals in which a plurality of conductive bus bars are arranged in a line and electrically connected to elements of other electronic devices. The plurality of bus bars that constitute the terminal are connected by tie bars to be placed at one time or for positioning etc. at the time of manufacture of the terminal. Finally, with the tie bars cut, the bus bars are arranged in a line to form terminals. There is known a method of manufacturing a resin molded body provided with a terminal in which a plurality of bus bars are arranged in a row (see, for example, Patent Document 1).
　特許文献１の樹脂成形体の製造方法は、一方の型と他方の型とからなる成形型を用意し、タイバーによって繋がれた複数のバスバーを一方の型にセットし、一方の型と他方の型とを型締めする。この他方の型に進退可能に設けられた切断パンチによって成形の樹脂が充填される空洞の内部でタイバーを切断し、切断パンチを後退させて、成形型の空洞の内部に樹脂を充填することで、ターミナルを得る。さらに、このターミナルを別途成形された筐体に組み込むことで所望の樹脂成形体が得られる。 In the method of manufacturing a resin molded product according to Patent Document 1, a mold comprising one mold and the other mold is prepared, and a plurality of bus bars connected by tie bars are set to the one mold, and one mold and the other Clamp the mold and the mold. By cutting the tie bar inside the cavity filled with the molded resin by the cutting punch provided to the other mold so as to be movable back and forth, and retracting the cutting punch to fill the resin in the mold cavity. Get the terminal. Furthermore, a desired resin molding can be obtained by incorporating this terminal into a separately molded housing.
特開平２－２７３４７８号公報Japanese Patent Application Laid-Open No. 2-273478
　ところで、バスバーを一方の型にセットして他方の型で型締めした後、一度に樹脂成形体を成形すれば、工数削減やターミナル用の一次金型を廃止でき好ましい。 By setting the bus bar in one mold and clamping the mold in the other mold, it is preferable to reduce the number of steps and eliminate the primary mold for the terminal by molding the resin molding at one time.
　また、樹脂成形体によっては、樹脂成形体の基準面から突出する突出部が形成され、該突出部にターミナルが配置されるものがある。突出部には、樹脂成形体の基準面と角度を持って延在する壁面が設けられる。 Further, depending on the resin molded body, a projecting portion which protrudes from a reference surface of the resin molded body may be formed, and a terminal may be disposed on the projecting portion. The projecting portion is provided with a wall surface extending at an angle to the reference surface of the resin molded body.
　ターミナルは複数のバスバーの端部からなり、これらのバスバーの端部に他電子機器の素子が接続されるので、複数のバスバーの端部には位置決め精度が求められる。そのため、ターミナルからなるべく近い位置にタイバーを設けることができれば、複数のバスバー間の位置精度が向上する。 Since the terminal comprises end portions of a plurality of bus bars, and elements of other electronic devices are connected to the end portions of these bus bars, positioning accuracy is required of the end portions of the plurality of bus bars. Therefore, if the tie bar can be provided as close as possible to the terminal, the positional accuracy between the plurality of bus bars is improved.
　しかしながら、他方の型には、突出部の壁面を成形するための壁成形面が設けられ、肉厚確保のために該壁成形面からある程度距離を取った位置に切断パンチを設ける必要があるので、ターミナルが配置される突出部の壁面から離れた位置にタイバーを設けざるを得ない。 However, the other mold is provided with a wall molding surface for molding the wall surface of the projecting portion, and it is necessary to provide a cutting punch at a position at a certain distance from the wall molding surface for securing thickness. The tie bar must be provided at a position away from the wall surface of the projection where the terminal is disposed.
　本発明の目的は、かかる従来技術の問題点に鑑み、成形型に切断パンチを配置したうえで、タイバーの位置を、壁面に近い位置に配置することができる樹脂成形体の製造方法を提供することにある。 An object of the present invention is, in view of the problems of the prior art, to provide a method of manufacturing a resin molded product in which the position of the tie bar can be arranged close to the wall surface after arranging the cutting punch in the mold. It is.
　［１］本発明に係る樹脂成形体の製造方法は、
　少なくとも２つの型によって構成された樹脂成形に用いる成形型の前記２つの型のうち一方の型にタイバーによって互いに結合された複数の導電性のバスバーがセットされ、
　前記２つの型のうち他方の型に、進退可能にセットされた切断パンチの前進状態によって前記成形型の樹脂が充填される空洞の内部で前記結合が切断され、
　前記結合が切断された後に前記空洞の内部に樹脂を充填し、樹脂充填完了時には前記切断パンチは後退状態であり、前記切断パンチの刃と切断された前記タイバーとの間には樹脂が充填される樹脂成形体の製造方法において、
　前記他方の型の前記樹脂成形体の製品形状を成形する形状面であって、前記バスバーから離れて配置された型基準面によって、樹脂成形体の基準面を成形し、
　前記切断パンチの側面の少なくとも一部を、前記切断パンチの後退状態においても前記成形型の前記空洞の内部に露出させて前記側面によって前記樹脂成形体の前記基準面と角度を持って延在する壁面の少なくとも一部を成形することを特徴とする。 [1] The method for producing a resin molded product according to the present invention,
A plurality of conductive bus bars connected to one another by tie bars are set in one of the two molds of the mold used for resin molding constituted by at least two molds,
In the other of the two molds, the bond is cut inside the cavity filled with the resin of the mold by the advancing state of the cutting punch set to be retractable.
After the bond is cut, the cavity is filled with resin, and when the resin filling is completed, the cutting punch is in a retracted state, and the resin is filled between the cutting punch blade and the cut tie bar. In the method of producing a resin molded article,
Forming a reference surface of the resin molded product by a shape reference surface of the other type of the resin molded product, the mold reference surface being disposed apart from the bus bar;
At least a part of the side surface of the cutting punch is exposed to the inside of the cavity of the mold even in the retracted state of the cutting punch, and extends at an angle to the reference surface of the resin molding by the side surface At least a part of the wall surface is formed.
　かかる構成によれば、成形型の２つの型のうち一方の型にタイバーによって互いに結合された複数のバスバーを一度にセットするので、複数のバスバーをバラバラにセットする場合よりも組付け工数が短縮される。他方の型に進退可能にセットされた切断パンチの前進状態によってタイバーの結合が切断され、樹脂充填完了時には切断パンチの後退状態であるので切断パンチの刃と切断されたタイバーとの間に樹脂が充填される。他方の型のバスバーから離れて配置された型基準面によって、樹脂成形体の基準面が成形されるが、該基準面と角度を持って延在する壁面の少なくとも一部を、切断パンチの後退状態においても成形型の空洞の内部に露出させた切断パンチの側面で形成するので、切断パンチを壁面に接する位置に配置することができる。タイバーを切断する切断パンチが壁面に接するので、成形型に切断パンチを配置したうえで、タイバーの位置を、壁面に近い位置に配置することができる。 According to this configuration, since the plurality of bus bars coupled to each other by the tie bar are set at one of the two molds at one time, the number of assembling steps is reduced compared to the case where the plurality of bus bars are separately set. Be done. The bond bar of the tie bar is cut by the advancing state of the cutting punch set to the other type so as to be able to move back and forth, and the resin is inserted between the cutting punch blade and the cut tie bar because the cutting punch is retreated when resin filling is complete. Be filled. The reference surface of the resin molding is formed by the mold reference surface arranged away from the bus bar of the other mold, but at least a part of the wall surface extending at an angle to the reference surface is retracted by the cutting punch Even in the state, since it is formed by the side surface of the cutting punch exposed to the inside of the mold cavity, the cutting punch can be disposed at a position in contact with the wall surface. Since the cutting punch for cutting the tie bar is in contact with the wall surface, it is possible to arrange the position of the tie bar close to the wall surface after arranging the cutting punch in the mold.
　［２］また、本発明の樹脂成形体の製造方法において、
　前記切断パンチの側面であって、前記壁面の少なくとも一部を成形する前記切断パンチの側面から屈曲して延在する面を、前記切断パンチの後退状態においても前記成形型の前記空洞の内部に露出させて、前記壁面と前記基準面とを結合するリブ形状の少なくとも一部を成形することが好ましい。 [2] In the method for producing a resin molded product of the present invention,
A side surface of the cutting punch that extends at a side surface of the cutting punch that forms at least a part of the wall surface and extends inside the cavity of the mold even in the retracted state of the cutting punch Preferably, at least a part of a rib shape that exposes and joins the wall surface and the reference surface is formed.
　かかる構成によれば、切断パンチの側面であって、壁面の少なくとも一部を成形する切断パンチの側面から屈曲して延在する面を、切断パンチの後退状態においても成形型の空洞の内部に露出させるので、樹脂成形体の壁面を補強するリブを、壁面の成形と同時に成形することができる。 According to this configuration, the side surface of the cutting punch, which is bent and extended from the side surface of the cutting punch that forms at least a part of the wall surface, is formed inside the mold cavity even in the retracted state of the cutting punch. Since it is exposed, the rib which reinforces the wall surface of the resin molding can be molded simultaneously with the molding of the wall surface.
　[３] また、本発明の樹脂成形体を成形する成形型において、
　少なくとも２つの型によって構成された樹脂成形体を成形する成形型であって、
　前記２つの型のうち一方の型には、タイバーによって互いに結合された複数の導電性のバスバーがセットされる支持部が設けられ、
　前記２つの型のうち他方の型には、進退可能なように前記結合を切断する切断パンチが設けられ、
　前記成形型の空洞の内部へ樹脂を充填する時には、前記切断パンチは後退状態とすることができ、前記切断パンチの前記タイバーとの間に樹脂を充填することのできる樹脂成形体を成形する成形型において、
　前記他方の型には、前記樹脂成形体の基準面となる製品形状を成形する形状面であって、前記バスバーから離れて配置された型基準面が設けられており、
　前記切断パンチの側面の少なくとも一部には、前記切断パンチが後退した状態においても前記空洞の内部に露出されるとともに、前記側面によって前記樹脂成形体の基準面と角度を持って延在する壁面の少なくとも一部を成形する壁成形面が設けられていることが好ましい。 [3] Further, in the mold for molding the resin molded body of the present invention,
A mold for molding a resin molding constituted by at least two molds, wherein
One of the two types is provided with a support to which a plurality of conductive bus bars coupled together by tie bars are set.
The other of the two types is provided with a cutting punch that cuts the bond to allow for advancement and withdrawal;
When the resin is filled into the cavity of the mold, the cutting punch can be in a retracted state, and molding is performed to form a resin molded body which can be filled with the resin between the cutting punch and the tie bar. In the form
The other mold is a shape surface for molding a product shape to be a reference surface of the resin molded body, and is provided with a mold reference surface which is disposed apart from the bus bar,
A wall surface which is exposed to the inside of the cavity even in a state in which the cutting punch is retracted on at least a part of the side surface of the cutting punch, and a wall surface extending at an angle to the reference surface of the resin molded body by the side surface Preferably, a wall molding surface is provided for molding at least a part of.
　かかる構成によれば、成形型の２つの型のうち一方の型には、タイバーによって互いに結合された複数のバスバーを一度にセットする支持部が設けられるので、複数のバスバーを一次のセットすることで、複数のバスバーをバラバラにセットする場合よりも組付け工数が短縮される。他方の型には進退可能にセットされた切断パンチが設けられ、該切断パンチの前進状態によってタイバーの結合が切断され、樹脂充填完了時には切断パンチの後退状態であるので切断パンチの刃と切断されたタイバーとの間に樹脂が充填される。他方の型のバスバーから離れて配置された型基準面が設けられ、該型基準面によって樹脂成形体の基準面が成形されるが、該基準面と角度を持って延在する壁面の少なくとも一部を、切断パンチの後退状態においても成形型の空洞の内部に露出させた切断パンチの側面で形成するので、切断パンチを壁面に接する位置に配置することができる。タイバーを切断する切断パンチが壁面に接するので、成形型に切断パンチを配置したうえで、タイバーの位置を、壁面に近い位置に配置することができる。 According to this configuration, since one of the two molds of the mold is provided with the support portion for setting the plurality of bus bars coupled to one another by the tie bars at one time, the plurality of bus bars should be primarily set. Thus, the number of assembling steps is reduced as compared with the case where the plurality of bus bars are set separately. The other mold is provided with a cutting punch set to be able to move forward and backward, and the connection of the tie bar is cut by the advancing state of the cutting punch, and when the resin filling is completed, it is cut with the cutting punch blade since the cutting punch is in a retracted state. The resin is filled in between the tie bars. A mold reference surface is provided apart from the bus bar of the other mold, and the mold reference surface forms the reference surface of the resin molded body, and at least one of the wall surfaces extending at an angle to the reference surface. Since the portion is formed by the side surface of the cutting punch exposed to the inside of the cavity of the mold even in the retracted state of the cutting punch, the cutting punch can be disposed in contact with the wall surface. Since the cutting punch for cutting the tie bar is in contact with the wall surface, it is possible to arrange the position of the tie bar close to the wall surface after arranging the cutting punch in the mold.
　[４] また、本発明の樹脂成形体を成形する成形型において、
　前記切断パンチの側面には、前記壁面の少なくとも一部を成形する壁成形面から屈曲して延在し、前記後退した状態においても前記空洞の内部に露出させて、前記壁面と前記基準面とを結合するリブ形状の少なくとも一部を成形するリブ成形面が設けられていることが好ましい。 [4] Further, in the molding die for molding the resin molding of the present invention,
The side surface of the cutting punch is bent and extended from a wall forming surface for forming at least a part of the wall surface, and is exposed to the inside of the cavity even in the retracted state, and the wall surface and the reference surface Preferably, a rib forming surface is provided for forming at least a portion of the rib shape joining the two.
　かかる構成によれば、切断パンチの側面には、壁面の少なくとも一部を成形する壁成形面から屈曲して延在し、後退した状態においても空洞の内部に露出させて、壁面と基準面とを結合するリブ形状の少なくとも一部を成形するリブ成形面が設けられているので、樹脂成形体の壁面を補強するリブを、壁面の成形と同時に成形することができる。 According to this configuration, at least a part of the wall surface is bent and extended from the wall molding surface for forming at least a part of the wall surface, and is exposed to the inside of the cavity even in a receding state, thereby the wall surface and the reference surface Since the rib forming surface for forming at least a part of the rib shape for bonding is provided, the rib for reinforcing the wall surface of the resin molded body can be formed simultaneously with the forming of the wall surface.
図１Ａは本発明に係る樹脂成形体の構造を示す要部斜視図である。FIG. 1A is a perspective view of an essential part showing the structure of a resin molded product according to the present invention. 図１Ｂは本発明に係るバスバー及び基板の斜視図である。FIG. 1B is a perspective view of a bus bar and a substrate according to the present invention. 図２Ａは本発明に係る成形型にバスバーをセットする工程を説明する断面図である。FIG. 2A is a cross-sectional view for explaining the process of setting the bus bar in the mold according to the present invention. 図２Ｂは図２Ａの２Ｂ－２Ｂ線断面図である。FIG. 2B is a cross-sectional view taken along line 2B-2B of FIG. 2A. 図３Ａは本発明に係るタイバーを切断する工程を説明する断面図である。FIG. 3A is a cross-sectional view for explaining the step of cutting the tie bar according to the present invention. 図３Ｂは図３Ａの３Ｂ－３Ｂ線断面図である。FIG. 3B is a cross-sectional view taken along line 3B-3B of FIG. 3A. 図４Ａは本発明に係る成形型の空洞に樹脂を充填する工程を説明する断面図である。FIG. 4A is a cross-sectional view for explaining a process of filling a cavity of a mold according to the present invention with a resin. 図４Ｂは図４Ａの４Ｂ－４Ｂ線断面図である。FIG. 4B is a cross-sectional view taken along line 4B-4B of FIG. 4A. 図４Ｃは比較例に係る成形型の断面図である。FIG. 4C is a cross-sectional view of a mold according to a comparative example.
　以下、図面を用いて本発明の実施形態を説明する。図１Ａに示すように、本発明の一実施形態に係る樹脂成形体１は、本体部２と、該本体部２から突出するコネクタとしての突出部３と、該突出部３と本体部２とを繋ぐリブ４とを備えている。 Hereinafter, embodiments of the present invention will be described using the drawings. As shown in FIG. 1A, a resin molded body 1 according to an embodiment of the present invention includes a main body 2, a protrusion 3 as a connector protruding from the main body 2, the protrusion 3 and the main body 2. And a rib 4 connecting the two.
　本体部２の表側上部に樹脂成形体１の基準面５が設けられ、突出部３の背側に基準面５と角度を持って延在する壁面６が設けられ、該壁面６と基準面５とを結合するようにリブ４が設けられ、該リブ４の根本部分、基準面５及び壁面６を結合するように補強部７が設けられている。 A reference surface 5 of the resin molded body 1 is provided on the front side upper portion of the main body 2, and a wall surface 6 extending at an angle to the reference surface 5 is provided on the back side of the projecting portion 3. The rib 4 is provided so as to connect and the reinforcing portion 7 is provided so as to connect the root portion of the rib 4, the reference surface 5 and the wall surface 6.
　次にバスバー１１について説明する。
　図１Ｂに示すように、複数のバスバー１１は成形型２０（図２Ａ参照）にセットされる前の状態である。複数の導電性のバスバー１１は、タイバー１２によって互いに結合されている。基板１０は、樹脂成形体１の成形後にバスバー１１がはんだ付けされるが、樹脂成形体１成形後のバスバー１１との位置関係を示すために想像線で示す。 Next, the bus bar 11 will be described.
As shown in FIG. 1B, the plurality of bus bars 11 are in a state before being set in the mold 20 (see FIG. 2A). The plurality of conductive bus bars 11 are coupled to one another by tie bars 12. Although the bus bar 11 is soldered to the substrate 10 after the molding of the resin molding 1, the substrate 10 is shown by an imaginary line to show the positional relationship with the bus bar 11 after the molding of the resin molding 1.
　バスバー１１は、想像線で示す基板１０から上方に延びる基端部１３と、該基端部１３の上端から横方向に延在する横導通部１４と、該横導通部１４の途中に形成れて保持ピン２２（図２Ａ参照）が挿入される位置決め孔１５と、横導通部１４の端部から上方に延在する縦導通部１６と、該縦導通部１６の上端から横方向に延び他の電子機器の素子等と電気的に接続されるターミナル１７とを備えている。 The bus bar 11 is formed in the middle of the lateral conduction portion 14, a proximal end 13 extending upward from the substrate 10 shown by a phantom line, a lateral conduction portion 14 extending laterally from the upper end of the proximal end 13, and Positioning holes 15 into which the holding pins 22 (see FIG. 2A) are inserted, a vertical conduction portion 16 extending upward from the end of the horizontal conduction portion 14, and other elements extending laterally from the upper end of the vertical conduction portion 16 And a terminal 17 electrically connected to an element or the like of the electronic device.
　次に成形された状態の樹脂成形体１及びバスバー１１について説明する。
　図１Ａ、図１Ｂ及び図４Ａに示すように、樹脂成形体１が成形された状態で、バスバー１１は樹脂成形体１に一体的に設けられる。詳細には、樹脂成形体１の本体部２の内側に沿ってバスバー１１の横導通部１４が配置され、突出部３の内部で壁面６と略平行に縦導通部１６が配置され、突出部３の開口８にターミナル１７が配置される。基準面５は、樹脂成形体１の内部で複数のバスバー１１が共通に延在する方向に平行である。 Next, the resin molded body 1 and the bus bar 11 in a molded state will be described.
As shown in FIGS. 1A, 1B and 4A, the bus bar 11 is provided integrally with the resin molded body 1 in a state where the resin molded body 1 is molded. Specifically, the horizontal conduction portion 14 of the bus bar 11 is disposed along the inside of the main body portion 2 of the resin molded body 1, the vertical conduction portion 16 is disposed substantially parallel to the wall surface 6 inside the projection 3, and the projection The terminal 17 is disposed in the opening 8 of 3. The reference surface 5 is parallel to the direction in which the plurality of bus bars 11 extend in common inside the resin molded body 1.
　次に成形型２０について説明する。
　図１Ａ、図１Ｂ、図２Ａ及び図２Ｂに示すように、成形型２０は、少なくとも２つの型によって構成された樹脂成形体１を成形するものであり、可動型としての一方の型２１と、固定型としての他方の型３１と、樹脂成形体１のいわゆるアンダーカット部を形成するスライド型４１とを備えている。スライド型４１は、他方の型３１に移動可能に設けられている。 Next, the mold 20 will be described.
As shown in FIGS. 1A, 1B, 2A and 2B, the mold 20 is for molding the resin molded body 1 constituted by at least two molds, and one mold 21 as a movable mold, The other mold 31 as a fixed mold and a slide mold 41 for forming a so-called undercut portion of the resin molded body 1 are provided. The slide die 41 is movably provided on the other die 31.
　２つの型のうち一方の型２１には、タイバー１２によって互いに結合された複数の導通性のバスバー１１がセットされる支持部２３と、後述する切断パンチ３２がタイバー１２の結合を切断するときに切断パンチ３２の先端、及び切断されたタイバー１２を逃がすための凹部２４と、が設けられている。 When one of the two molds 21 has a support 23 on which a plurality of conductive bus bars 11 connected to one another by tie bars 12 are set and a cutting punch 32 described later cuts the connection of the tie bars 12. A tip of the cutting punch 32 and a recess 24 for releasing the cut tie bar 12 are provided.
　２つの型のうち他方の型３１には、進退可能なようにタイバー１２による複数のバスバーの結合を切断する切断パンチ３２と、樹脂成形体１の基準面５となる製品形状を成形する形状面であって、バスバー１１から離れて配置された型基準面３３と、が設けられている。 The other of the two molds 31 has a cutting punch 32 for cutting the connection of the plurality of bus bars by the tie bar 12 so as to be able to advance and retract, and a shape surface for forming a product shape to be the reference surface 5 of the resin molded body 1 And a mold reference surface 33 disposed apart from the bus bar 11 is provided.
　切断パンチ３２の側面３４の少なくとも一部には、切断パンチ３２が後退した状態においても空洞５０の内部に露出されるとともに、側面３４によって樹脂成形体１の基準面５と角度を持って延在する壁面６の少なくとも一部を成形する壁成形面３５が設けられている。 At least a part of the side surface 34 of the cutting punch 32 is exposed to the inside of the cavity 50 even when the cutting punch 32 is retracted, and extends at an angle to the reference surface 5 of the resin molded body 1 by the side surface 34 A wall molding surface 35 for molding at least a part of the wall surface 6 is provided.
　さらに、切断パンチ３２の側面３４には、壁面６の少なくとも一部を成形する壁成形面３５から屈曲して延在し、後退した状態においても空洞５０の内部に露出させて、壁面６と基準面５とを結合するリブ４形状の少なくとも一部を成形するリブ成形面３６が設けられている。成形型２０の空洞５０の内部へ樹脂を充填する時には、切断パンチ３２は後退状態とすることができ、切断パンチ３２のタイバー１２との間に樹脂を充填することができる。 Furthermore, the side surface 34 of the cutting punch 32 is bent and extended from the wall forming surface 35 for forming at least a part of the wall surface 6 and exposed to the inside of the cavity 50 even in a receding state. A rib forming surface 36 is provided which forms at least a portion of the rib 4 shape that joins the surface 5. When the resin is filled into the cavity 50 of the mold 20, the cutting punch 32 can be in a retracted state, and the resin can be filled between the cutting punch 32 and the tie bar 12.
　スライド型４１には、バスバー１１の先端部となるターミナル１７を支持するターミナル支持部４２が設けられている。 The slide mold 41 is provided with a terminal support portion 42 for supporting the terminal 17 which is the tip end portion of the bus bar 11.
　次に以上に述べた成形型２０による樹脂成形体１の製造方法を説明する。
　図２Ａ及び図２Ｂに示すように、一方の型２１の支持部２３にタイバー１２によって互いに結合された複数の導電性のバスバー１１をセットし、保持ピン２２を位置決め孔１５に通して一方の型２１に対してバスバー１１を位置決めする（バスバーセット工程）。 Next, a method of manufacturing the resin molded body 1 by the mold 20 described above will be described.
As shown in FIGS. 2A and 2B, a plurality of conductive bus bars 11 coupled to one another by tie bars 12 are set in the support portion 23 of one of the molds 21, and the holding pins 22 are passed through the positioning holes 15. Position the bus bar 11 with respect to the position 21 (bus bar setting step).
　一方の型２１を他方の型３１側に移動させ、図３Ａ及び図３Ｂに示すように、型締めされた状態において、切断パンチ３２の前進状態によって成形型２０の樹脂が充填される空洞５０の内部でタイバー１２による複数のバスバー１１の結合が切断される。このとき、切断パンチ３２の先端が凹部２４まで前進することで、切断されたタイバー１２が凹部２４内に曲がった状態で収納され、複数のバスバー１１が切り離された状態となる（タイバー切断工程）。 One mold 21 is moved to the other mold 31 side, and as shown in FIGS. 3A and 3B, in the clamped state, the hollow 50 filled with the resin of the mold 20 by the advancing state of the cutting punch 32 The connection of the plurality of bus bars 11 by the tie bars 12 is broken inside. At this time, when the tip of the cutting punch 32 advances to the recess 24, the cut tie bar 12 is stored in a bent state in the recess 24, and the plurality of bus bars 11 are separated (tie bar cutting step) .
　結合が切断された後に切断パンチ３２を後退させる。このとき、図４Ａ及び図４Ｂに示すように、切断パンチ３２の先端を型基準面３３の近傍まで後退させ、切断パンチ３２の一部を成形型２０の空洞５０の内部に露出させる（切断パンチ後退工程）。 After the bond is cut, the cutting punch 32 is retracted. At this time, as shown in FIGS. 4A and 4B, the tip of the cutting punch 32 is retracted to the vicinity of the mold reference surface 33 to expose a part of the cutting punch 32 inside the cavity 50 of the mold 20 (cutting punch Backward process).
　空洞５０の内部に樹脂を充填し、樹脂充填完了時には切断パンチ３２は後退状態であり、切断パンチ３２の刃３７と切断されたタイバー１２との間には樹脂が充填される（樹脂充填工程）。 The inside of the cavity 50 is filled with the resin, and when the resin filling is completed, the cutting punch 32 is in the retracted state, and the resin is filled between the blade 37 of the cutting punch 32 and the cut tie bar 12 (resin filling step) .
　このとき、他方の型３１の樹脂成形体１の製品形状を成形する形状面であって、バスバー１１から離れて配置された型基準面３３によって、樹脂成形体１の基準面５が成形される（基準面成形工程）。 At this time, the reference surface 5 of the resin molded body 1 is molded by the mold reference surface 33 which is a shape surface for molding the product shape of the resin molded body 1 of the other mold 31 and is disposed apart from the bus bar 11 (Reference surface forming process).
　また、切断パンチ３２の側面の少なくとも一部を、切断パンチ３２の後退状態においても成形型２０の空洞５０の内部に露出させて、側面３４によって樹脂成形体１の基準面５と角度を持って延在する壁面６の少なくとも一部が成形される（切断パンチの壁面成形工程）。 Further, at least a part of the side surface of the cutting punch 32 is exposed to the inside of the cavity 50 of the mold 20 even in the retracted state of the cutting punch 32, and the side surface 34 makes an angle with the reference surface 5 of the resin molded body 1 At least a part of the extending wall surface 6 is formed (the wall forming step of the cutting punch).
　また、切断パンチ３２の側面３４であって、壁面６の少なくとも一部を成形する切断パンチ３２の側面３４から屈曲して延在する面（リブ成形面）３６を、切断パンチ３２の後退状態においても成形型２０の空洞５０の内部に露出させることで、壁面６と基準面５とを結合するリブ４の形状の少なくとも一部が成形される（切断パンチのリブ成形工程）。 Further, a side (rib forming surface) 36 which is a side surface 34 of the cutting punch 32 and which bends and extends from the side surface 34 of the cutting punch 32 for forming at least a part of the wall surface 6 Also by exposing the inside of the cavity 50 of the mold 20, at least a part of the shape of the rib 4 connecting the wall surface 6 and the reference surface 5 is formed (rib forming step of the cutting punch).
　また、切断パンチ３２の刃３７が先端から基端に向かって傾斜し又は凹んでおり、この切断パンチ３２の刃３７の傾斜又は凹みを成形型２０の空洞の内部に露出させることで、壁面６及びリブ４の根元を補強する補強部７が形成される（切断パンチの補強部成形工程）。 Further, the blade 37 of the cutting punch 32 is inclined or dented from the tip to the proximal end, and the inclination or dent of the blade 37 of the cutting punch 32 is exposed to the inside of the cavity of the mold 20. And the reinforcement part 7 which reinforces the root of the rib 4 is formed (reinforcement part formation process of a cutting punch).
　切断パンチの補強部成形工程により、補強部７を、壁面６及びリブ４の成形と同時に成形することができる。さらに、補強部７が樹脂成形体１の壁面６及びリブ４の基端に付け加えられることで補強効果が向上する The reinforcing portion 7 can be formed simultaneously with the formation of the wall surface 6 and the rib 4 by the reinforcing portion forming step of the cutting punch. Further, the reinforcing portion 7 is added to the wall surface 6 of the resin molded body 1 and the base end of the rib 4 to improve the reinforcing effect.
　他方の型３１を後退させて型開きし、樹脂成形体１を取り出すことで、バスバー１１が一体的に設けられた樹脂成形体１を得る。 The other mold 31 is retracted and opened, and the resin molded body 1 is taken out to obtain the resin molded body 1 in which the bus bars 11 are integrally provided.
　図４Ｃは比較例の成形型１００であり、成形型１００は、固定型１０１、可動型１０２、スライド型１０３とから構成れている。固定型１０１には、進退可能に切断パンチ１０４が設けられている。切断パンチ１０４は、樹脂成形体の壁面を成形する壁成形面１０５から距離Ｌ１ほど距離を取って配置されている。切断パンチ１０４の移動方向の下方において、可動型１０２に凹部１０６が設けられている。 FIG. 4C shows a forming die 100 of a comparative example, and the forming die 100 is configured of a stationary die 101, a movable die 102, and a slide die 103. The fixed mold 101 is provided with a cutting punch 104 capable of advancing and retracting. The cutting punch 104 is disposed at a distance L1 from the wall molding surface 105 for molding the wall surface of the resin molding. Below the moving direction of the cutting punch 104, the movable mold 102 is provided with a recess 106.
　比較例の固定型１０１には壁成形面１０５が設けられているが、切断パンチ１０４からの肉厚確保のために、上述のように壁成形面１０５からある程度の距離Ｌ１を離した位置に切断パンチ１０４を設ける必要があるので、樹脂成形体のターミナルが配置される突出部の壁面から離れた位置に、バスバー間を結合するタイバーを設けざるを得ない。 Although the fixed mold 101 of the comparative example is provided with the wall molding surface 105, it is cut at a position away from the wall molding surface 105 by a certain distance L1 as described above in order to secure the thickness from the cutting punch 104. Since it is necessary to provide the punch 104, it is necessary to provide a tie bar connecting between the bus bars at a position apart from the wall surface of the protrusion where the terminal of the resin molded body is disposed.
　比較例に対して、本発明の実施形態は、図４Ａに示すように、切断パンチ３２の側面３４の一部を成形型２０の空洞５０に露出させるため、樹脂成形体１の突出部３の壁面６から切断パンチ３２までの距離をゼロにできる。このため、バスバー１１間を接続するタイバー１２を壁面６に近づけることができ、ターミナル１７の位置精度を向上させることができる。 With respect to the comparative example, in the embodiment of the present invention, as shown in FIG. 4A, in order to expose a part of the side surface 34 of the cutting punch 32 to the cavity 50 of the mold 20, The distance from the wall surface 6 to the cutting punch 32 can be made zero. Therefore, the tie bars 12 connecting the bus bars 11 can be brought close to the wall surface 6, and the positional accuracy of the terminal 17 can be improved.
　以上のように、本実施形態によれば、成形型２０の２つの型のうち一方の型２１にタイバー１２によって互いに結合された複数のバスバー１１を一度にセットするので、複数のバスバー１１をバラバラにセットする場合よりも組付け工数が短縮される。他方の型３１に進退可能にセットされた切断パンチ３２の前進状態によってタイバー１２の結合が切断され、樹脂充填完了時には切断パンチ３２の後退状態であるので切断パンチ３２の刃３７と切断されたタイバー１２との間に樹脂が充填される。他方の型３１のバスバー１１から離れて配置された型基準面３３によって、樹脂成形体１の基準面５が成形されるが、該基準面５と角度を持って延在する壁面６の少なくとも一部を、切断パンチ３２の後退状態においても成形型の空洞５０の内部に露出させた切断パンチ３２の側面３４で形成するので、切断パンチ３２を壁面６に接する位置に配置することができる。タイバー１２を切断する切断パンチ３２が壁面６に接するので、成形型２０に切断パンチ３２を配置したうえで、タイバー１２の位置を、壁面６に近い位置に配置することができる。これにより、ターミナル１７に近い位置で複数のバスバー間の位置決め精度を向上させることができ、結果、ターミナル１７の位置精度を向上させることができる。 As described above, according to the present embodiment, since the plurality of bus bars 11 coupled to each other by the tie bar 12 are set at one of the two molds of the mold 20 at one time, the plurality of bus bars 11 are separated. The number of assembling steps is reduced compared to setting to. The bond bar of the tie bar 12 is cut by the advancing state of the cutting punch 32 set to the other mold 31 so as to be able to move back and forth, and since the cutting punch 32 is retracted when resin filling is completed The resin is filled between 12 and. The reference surface 5 of the resin molding 1 is formed by the mold reference surface 33 disposed apart from the bus bar 11 of the other mold 31, but at least one of the wall surfaces 6 extending at an angle to the reference surface 5. Since the portion is formed by the side surface 34 of the cutting punch 32 exposed to the inside of the mold cavity 50 even in the retracted state of the cutting punch 32, the cutting punch 32 can be disposed in contact with the wall surface 6. Since the cutting punch 32 for cutting the tie bar 12 is in contact with the wall surface 6, after disposing the cutting punch 32 on the mold 20, the position of the tie bar 12 can be arranged close to the wall surface 6. Thereby, the positioning accuracy between the plurality of bus bars can be improved at a position close to the terminal 17, and as a result, the position accuracy of the terminal 17 can be improved.
　また、切断パンチ３２の側面３４であって、壁面６の少なくとも一部を成形する切断パンチ３２の側面３４から屈曲して延在する面（リブ成形面）３６を、切断パンチ３２の後退状態においても成形型の空洞５０の内部に露出させるので、樹脂成形体１の壁面６を補強するリブ４を、壁面６の成形と同時に成形することができる。 Further, a side (rib forming surface) 36 which is a side surface 34 of the cutting punch 32 and which bends and extends from the side surface 34 of the cutting punch 32 for forming at least a part of the wall surface 6 Since the inside of the mold cavity 50 is exposed as well, the rib 4 for reinforcing the wall surface 6 of the resin molding 1 can be molded simultaneously with the molding of the wall surface 6.
　なお、以上に本発明の実施形態について説明したが、本発明はこれに限定されない。実施形態では、一方の型２１を可動型とし、他方の型３１を固定型としたが、これに限定されず、一方の型２１を固定型とし、他方の型３１を可動型としてもよい。 Although the embodiments of the present invention have been described above, the present invention is not limited thereto. In the embodiment, one mold 21 is a movable mold and the other mold 31 is a fixed mold. However, the present invention is not limited thereto. One mold 21 may be a fixed mold and the other mold 31 may be a movable mold.
　また、実施形態では、成形型２０を開いているときに切断パンチ３２を前進状態にしておいて他方の型３１を移動させ、切断パンチでタイバー１２を切断したが、これに限定されず、成形型２０を開いているときは切断パンチ３２を後退状態にしておいて他方の型３１を移動させ、型閉じした後に切断パンチ３２を前進させてタイバー１２を切断しても差し支えない。 In the embodiment, when the mold 20 is opened, the cutting punch 32 is moved forward, the other mold 31 is moved, and the tie bar 12 is cut by the cutting punch, but the invention is not limited thereto. When the mold 20 is opened, the cutting punch 32 may be in a retracted state, the other mold 31 may be moved, and after closing the mold, the cutting punch 32 may be advanced to cut the tie bar 12.
　また、実施例では切断パンチ３２を後退させてから空洞５０内部に樹脂を充填したが、本発明は空洞５０内部に樹脂が満たされたときに切断パンチ３２が後退していればよいため、これに限定されず、例えば切断パンチ３２が後退している最中に空洞５０内部への樹脂の充填を開始してもよい。 In the embodiment, the cutting punch 32 is retracted and then the inside of the cavity 50 is filled with the resin. However, according to the present invention, the cutting punch 32 may be retracted when the inside of the cavity 50 is filled with the resin. For example, the filling of the resin into the cavity 50 may be started while the cutting punch 32 is being retracted.
　１…樹脂成形体、４…リブ、５…基準面、６…壁面、１１…バスバー、１２…タイバー、２０…成形型、２１…一方の型、２３…支持部、３１…他方の型、３２…切断パンチ、３３…型基準面、３４…切断パンチの側面、３５…壁成形面、３６…リブ成形面（壁成形面から屈曲して延在する面）、５０…空洞。 DESCRIPTION OF SYMBOLS 1 ... Resin molded object, 4 ... Rib, 5 ... Reference plane, 6 ... Wall surface, 11 ... Busbar, 12 ... Tie bar, 20 ... Molding type, 21 ... One mold, 23 ... Support part, 31 ... The other mold, 32 ... cutting punch 33, type reference surface 34, side of cutting punch 35, wall forming surface 36, rib forming surface (surface that bends and extends from wall forming surface), 50: cavity.

Claims (4)

  1. 　少なくとも２つの型によって構成された樹脂成形に用いる成形型の前記２つの型のうち一方の型にタイバーによって互いに結合された複数の導電性のバスバーがセットされ、
    　前記２つの型のうち他方の型に、進退可能にセットされた切断パンチの前進状態によって前記成形型の樹脂が充填される空洞の内部で前記結合が切断され、
    　前記結合が切断された後に前記空洞の内部に樹脂を充填し、樹脂充填完了時には前記切断パンチは後退状態であり、前記切断パンチの刃と切断された前記タイバーとの間には樹脂が充填される樹脂成形体の製造方法において、
    　前記他方の型の前記樹脂成形体の製品形状を成形する形状面であって、前記バスバーから離れて配置された型基準面によって、樹脂成形体の基準面を成形し、
    　前記切断パンチの側面の少なくとも一部を、前記切断パンチの後退状態においても前記成形型の前記空洞の内部に露出させて前記側面によって前記樹脂成形体の前記基準面と角度を持って延在する壁面の少なくとも一部を成形することを特徴とする樹脂成形体の製造方法。     A plurality of conductive bus bars connected to one another by tie bars are set in one of the two molds of the mold used for resin molding constituted by at least two molds,
    In the other of the two molds, the bond is cut inside the cavity filled with the resin of the mold by the advancing state of the cutting punch set to be retractable.
    After the bond is cut, the cavity is filled with resin, and when the resin filling is completed, the cutting punch is in a retracted state, and the resin is filled between the cutting punch blade and the cut tie bar. In the method of producing a resin molded article,
    Forming a reference surface of the resin molded product by a shape reference surface of the other type of the resin molded product, the mold reference surface being disposed apart from the bus bar;
    At least a part of the side surface of the cutting punch is exposed to the inside of the cavity of the mold even in the retracted state of the cutting punch, and extends at an angle to the reference surface of the resin molding by the side surface A method for producing a resin molded product, comprising molding at least a part of a wall surface.
  2. 　請求項１に記載の樹脂成形体の製造方法であって、
    　前記切断パンチの側面であって、前記壁面の少なくとも一部を成形する前記切断パンチの側面から屈曲して延在する面を、前記切断パンチの後退状態においても前記成形型の前記空洞の内部に露出させて、前記壁面と前記基準面とを結合するリブ形状の少なくとも一部を成形することを特徴とする樹脂成形体の製造方法。     It is a manufacturing method of the resin molding of Claim 1, Comprising:
    A side surface of the cutting punch that extends at a side surface of the cutting punch that forms at least a part of the wall surface and extends inside the cavity of the mold even in the retracted state of the cutting punch A method of manufacturing a resin molded product, comprising exposing at least a part of a rib shape that joins the wall surface and the reference surface.
  3. 　少なくとも２つの型によって構成された樹脂成形体を成形する成形型であって、
    　前記２つの型のうち一方の型には、タイバーによって互いに結合された複数の導電性のバスバーがセットされる支持部が設けられ、
    　前記２つの型のうち他方の型には、進退可能なように前記結合を切断する切断パンチが設けられ、
    　前記成形型の空洞の内部へ樹脂を充填する時には、前記切断パンチは後退状態とすることができ、前記切断パンチの前記タイバーとの間に樹脂を充填することのできる樹脂成形体を成形する成形型において、
    　前記他方の型には、前記樹脂成形体の基準面となる製品形状を成形する形状面であって、前記バスバーから離れて配置された型基準面が設けられており、
    　前記切断パンチの側面の少なくとも一部には、前記切断パンチが後退した状態においても前記空洞の内部に露出されるとともに、前記側面によって前記樹脂成形体の基準面と角度を持って延在する壁面の少なくとも一部を成形する壁成形面が設けられていることを特徴とする樹脂成形体を成形する成形型。     A mold for molding a resin molding constituted by at least two molds, wherein
    One of the two types is provided with a support to which a plurality of conductive bus bars coupled together by tie bars are set.
    The other of the two types is provided with a cutting punch that cuts the bond to allow for advancement and withdrawal;
    When the resin is filled into the cavity of the mold, the cutting punch can be in a retracted state, and molding is performed to form a resin molded body which can be filled with the resin between the cutting punch and the tie bar. In the form
    The other mold is a shape surface for molding a product shape to be a reference surface of the resin molded body, and is provided with a mold reference surface which is disposed apart from the bus bar,
    A wall surface which is exposed to the inside of the cavity even in a state in which the cutting punch is retracted on at least a part of the side surface of the cutting punch, and a wall surface extending at an angle to the reference surface of the resin molded body by the side surface A molding die for molding a resin molding characterized in that a wall molding surface for molding at least a part of is provided.
  4. 　請求項３に記載の樹脂成形体を成形する成形型であって、
    　前記切断パンチの側面には、前記壁面の少なくとも一部を成形する壁成形面から屈曲して延在し、前記後退した状態においても前記空洞の内部に露出させて、前記壁面と前記基準面とを結合するリブ形状の少なくとも一部を成形するリブ成形面が設けられていることを特徴とする樹脂成形体を成形する成形型。     It is a shaping | molding die which shape | molds the resin molding of Claim 3, Comprising:
    The side surface of the cutting punch is bent and extended from a wall forming surface for forming at least a part of the wall surface, and is exposed to the inside of the cavity even in the retracted state, and the wall surface and the reference surface A molding die for molding a resin molded body, comprising: a rib molding surface for molding at least a part of a rib shape for joining the two.
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JP2012125931A (en) * 2010-12-13 2012-07-05 Yoshii Denshi Kogyo:Kk Method for manufacturing insert molding
WO2016076179A1 (en) * 2014-11-11 2016-05-19 株式会社ミツバ Insert-molded article and method for producing insert-molded article

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022215484A1 (en) * 2021-04-09 2022-10-13 株式会社オートネットワーク技術研究所 Terminal block
JP7484801B2 (en) 2021-04-09 2024-05-16 株式会社オートネットワーク技術研究所 Terminal block

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