WO2024004353A1 - Method for producing cleaning brush for mold and method for producing resin molding device - Google Patents

Method for producing cleaning brush for mold and method for producing resin molding device Download PDF

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Publication number
WO2024004353A1
WO2024004353A1 PCT/JP2023/015777 JP2023015777W WO2024004353A1 WO 2024004353 A1 WO2024004353 A1 WO 2024004353A1 JP 2023015777 W JP2023015777 W JP 2023015777W WO 2024004353 A1 WO2024004353 A1 WO 2024004353A1
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WIPO (PCT)
Prior art keywords
mold
cleaning brush
manufacturing
shaft member
resin molding
Prior art date
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PCT/JP2023/015777
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French (fr)
Japanese (ja)
Inventor
武彦 奥村
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Ｔｏｗａ株式会社
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Publication of WO2024004353A1 publication Critical patent/WO2024004353A1/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
    • B29C33/70—Maintenance
    • B29C33/72—Cleaning
    • 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
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • 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
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
    • H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
    • H01L21/50—Assembly of semiconductor devices using processes or apparatus not provided for in a single one of the subgroups H01L21/06 - H01L21/326, e.g. sealing of a cap to a base of a container
    • H01L21/56—Encapsulations, e.g. encapsulation layers, coatings

Definitions

  • the present specification relates to a method of manufacturing a cleaning brush for a mold and a method of manufacturing a resin molding device.
  • a substrate to which electronic elements such as an IC (Integrated Circuit), a transistor, and a capacitor are connected is prepared as a molding object.
  • electronic elements on a substrate are encapsulated with a resin.
  • Resin also referred to as resin pieces or resin scum
  • Resin generated during resin molding may remain in the mold of the resin molding device.
  • Patent Document 1 Japanese Utility Model Application Publication No. 02-137217
  • the mold is cleaned using a mold cleaning brush.
  • Patent Document 1 discloses that according to such a brush, the bristles can not only reach the surface of the molding surface and clean the surface, but also reach the bottom of the cavity and clean the surface. It states that the bottom can be cleaned.
  • a plurality of bristle bundles are fixed to the outer periphery of the shaft member, thereby forming a plurality of bristle flocks on the outer periphery of the shaft member.
  • a space for fixing the bristle bundle to the shaft member is required around the area where the bristle bundle is implanted. Since it is necessary to secure a space, it is difficult to reduce the distance between adjacent bristle bundles, and it is difficult to form a bristle material with high density on the circumferential surface of the shaft member.
  • the present specification discloses a method for manufacturing a cleaning brush for a mold, and a method for manufacturing a resin molding device, in which a bristle material having a higher density than in the prior art can be constructed around a shaft member.
  • the purpose is to
  • a method for manufacturing a mold cleaning brush for cleaning a mold provided in a resin molding apparatus includes a step of preparing a channel brush formed by fixing bristle material to a channel member. a step of spirally winding and fixing the channel brush around a shaft member extending in the axial direction; cutting a part or all of the tips of the bristle material so that the channel brush on the shaft member has a short bristle region including the bristle material having a first length. and a long hair region including the hair material having a second length longer than the first length.
  • a method for manufacturing a resin molding device is a method for manufacturing a resin molding device including a mold, wherein the method for manufacturing a cleaning brush for a mold according to an aspect of the present disclosure the short hair region of the mold cleaning brush is arranged so as to be able to contact the convex portion of the mold, and the long hair region of the mold cleaning brush comprises: It is arranged so as to contact the recessed part of the mold.
  • FIG. 2 is a plan view schematically showing the main structure inside the resin molding device.
  • FIG. 3 is a sectional view of a main part taken along line III-III shown in FIG. 2;
  • FIG. 2 is a diagram schematically showing the external structure of a mold cleaning brush provided in the resin molding apparatus.
  • FIG. 3 is a cross-sectional view showing a state in which the long hair region of the mold cleaning brush provided in the resin molding apparatus is in contact with the bottom surface of the lower mold.
  • FIG. 2 is a cross-sectional view showing a short bristled region and a long bristled region of a mold cleaning brush provided in the resin molding apparatus in contact with the surface of a lower mold.
  • FIG. 3 is a perspective view showing a fixing step in a method for manufacturing a mold cleaning brush.
  • FIG. 3 is a perspective view showing a cutting step in a method for manufacturing a mold cleaning brush.
  • FIG. 7 is a plan view showing a lower mold cleaning brush cleaning the lower mold in a first modification of the embodiment.
  • FIG. 7 is a plan view showing a mold cleaning brush for an upper mold in a first modification of the embodiment.
  • FIG. 7 is a plan view showing the configuration of a lower die in a second modification of the embodiment.
  • FIG. 1 shows a functional block diagram of an example of a resin molding apparatus 100 in an embodiment.
  • the resin molding apparatus 100 includes a control section 2, a supply module 1, a resin molding module 4, and a molded product delivery module 5.
  • the control unit 2 is configured to be able to control the supply module 1, the resin molding module 4, and the molded product delivery module 5.
  • the supply module 1 is configured to be able to supply the molding object and resin material to the resin molding module 4 before molding.
  • the resin molding module 4 is configured to be able to manufacture a resin molded product by clamping a mold and molding a molded object with resin.
  • the molded product carrying out module 5 is configured to be able to carry out the resin molded product after removing unnecessary resin portions of the molded object after molding.
  • the supply module 1, the resin molding module 4, and the molded product delivery module 5 are mutually removable and replaceable. Further, the number of resin molded modules 4 can also be increased or decreased.
  • FIG. 2 is a plan view schematically showing the main internal structure of the resin molding apparatus 100.
  • FIG. 3 is a cross-sectional view of the main part taken along the line III--III shown in FIG.
  • the resin molding apparatus 100 includes a supply section 10, a mold cleaning brush 30, a molding section 40, a carry-out mechanism 50, and a discharge section 60.
  • the supply module 1 mainly includes a supply section 10. As shown in FIG. A molding object before molding is placed in the supply section 10 .
  • the object to be molded is generally a substrate to which electronic elements such as semiconductor chips are connected.
  • the substrate for example, a lead frame, a printed wiring board, a metal substrate, a resin substrate, a semiconductor substrate, and a ceramic substrate are used.
  • the resin molding apparatus 100 further includes a transport mechanism (not shown), and this transport mechanism is configured to be movable between the supply module 1 and the resin molding module 4. The retracted position of the transport mechanism is in the supply module 1. The substrate is transported from the supply section 10 to the molding section 40 together with the resin material by the transport mechanism.
  • the resin material for example, a tablet-shaped resin formed by compacting a powdered thermosetting resin is used.
  • the resin molding module 4 mainly includes a molding section 40.
  • the molding section 40 includes a lower mold 41 and an upper mold 42 (FIG. 3) as molds, and a mold clamping mechanism (not shown) that clamps the mold.
  • a lower mold 41 and an upper mold 42 are clamped by a mold clamping mechanism, whereby a molding object is resin molded.
  • the molded product unloading module 5 mainly includes a discharge section 60.
  • the molded object after molding is transported from the molding section 40 to the discharge section 60 by the discharge mechanism 50, subjected to degate processing in the discharge section 60, and finally stored in the out magazine section.
  • the carrying-out mechanism 50 is configured to be movable between the resin molding module 4 and the molded product carrying-out module 5.
  • the carry-out mechanism 50 has a mold cleaning brush 30.
  • the unloading mechanism 50 includes a first main body part 51 and a second main body part 52.
  • the molded object after molding is discharged by the movement of the first body part 51 in the direction of arrow A1 and the movement of the second body part 52 in the direction of arrow A2.
  • the second main body portion 52 moves in the direction of arrow A2, the mold is cleaned.
  • a mold cleaning brush 30 is provided in a portion of the second main body portion 52 of the unloading mechanism 50 on the side closer to the molding portion 40 .
  • a molding object is molded with resin using a lower mold 41 and an upper mold 42 as molds, and cleaning is performed by removing the resin from the mold using a mold cleaning brush 30.
  • one or more mold cleaning brushes 30 are provided in the unloading mechanism 50 of the resin molding apparatus 100.
  • one mold cleaning brush 30 removes the resin from the lower mold 41
  • the other mold cleaning brush 30 removes the resin from the upper mold 42 (FIG. 3). are removed, and the mold of the molding section 40 is cleaned by these.
  • FIG. 4 is a diagram schematically showing the external structure of the mold cleaning brush 30.
  • FIG. 5 is a sectional view showing how the long hair region 32R of the mold cleaning brush 30 is in contact with the bottom surface 41b of the cavity (recess) of the lower mold 41.
  • FIG. 6 is a cross-sectional view showing how the short-hair region 31R and long-hair region 32R of the mold cleaning brush 30 are in contact with the surface of the lower mold 41 (the surface 41a and the bottom surface 41b of the recess).
  • the mold cleaning brush 30 has the form of a so-called roll brush.
  • the mold cleaning brush 30 includes a shaft member 38 that rotates around an axis 38c (FIG. 3), a channel member 35 (see also FIGS. 3 and 7) fixed to the shaft member 38, and A fixed bristle material 33 is provided.
  • the shaft member 38 has a cylindrical shape extending along an axis 38c from one end toward the other end.
  • a channel brush 36 (FIG. 7) is formed by fixing the bristle material 33 to the channel member 35 (FIG. 7).
  • the channel brush 36 is spirally wound around the shaft member 38 (FIGS. 3, 4, and 8) and fixed (see FIG. 8).
  • the tips of some or all of the bristles 33 are cut off with a grinder or the like (see FIG. 9).
  • the channel brush 36 on the shaft member 38 has a short bristled region 31R including the bristles 33 (31) having the first length L1 (FIG. 5), and a short bristled region 31R having the first length L1 (FIG. 5).
  • a long hair region 32R including a hair material 33 (32) having a length L2 (FIG. 5) of 2 is formed.
  • a plurality of short hair regions 31R and a plurality of long hair regions 32R are arranged around the shaft member 38. They are arranged in alternating directions. Here, two short hair regions 31R and two long hair regions 32R are alternately provided around the shaft member 38. As shown in FIG. 4, in the mold cleaning brush 30, when looking at the cross-sectional shape at a certain position, a plurality of short hair regions 31R and a plurality of long hair regions 32R are arranged alternately in the axial direction. (See also Figure 9).
  • the hair material 33 (31) included in the short hair region 31R extends so as to protrude radially outward from the channel member 35 along the radial direction of the shaft member 38 as it goes from the root side to the tip side. ing.
  • the hair material 33 (32) included in the long hair region 32R also extends so as to protrude radially outward from the channel member 35 along the radial direction of the shaft member 38 as it goes from the root side to the tip side. There is.
  • the angular range in the circumferential direction around the shaft member 38 where the short hair region 31R is provided can be set, for example, to 60° or more and 90° or less, and the angle range around the shaft member 38 where the long hair region 32R is provided can be set, for example.
  • the angle range in the circumferential direction can also be set to, for example, 60° or more and 90° or less.
  • the angle range in the circumferential direction here refers to the root portion of the hair material 33 (31) located furthest forward in the rotational direction of the short hair region 31R, and
  • the root portion of the bristles 33 (31) located at the rearmost side in the rotational direction is identified, and within a two-dimensional plane that is perpendicular to the axis 38c and includes these two root portions, This is the angle formed between the root portion of the shaft and the axis 38c.
  • the angle range in the circumferential direction here refers to the root portion of the hair material 33 (32) located furthest forward in the rotational direction of the long hair region 32R, and the rotational range of the long hair region 32R.
  • the root portion of the hair material 33 (32) located at the rearmost side in the direction is specified, and in a two-dimensional plane that is perpendicular to the axis 38c and includes these two root portions, these two root portions are This is the angle formed by the axis 38c and the axis 38c.
  • three short hair regions 31R provided in an angular range of 60° and three long hair regions 32R provided in an angular range of 60° can be alternately arranged around the shaft member 38.
  • Two short hair regions 31R and two long hair regions 32R may be provided each with an angular range of 90°, or they may be provided with different angular ranges such as 50° and 70° and arranged alternately.
  • the bristle material 33 (31) constituting the short bristle region 31R has a length L1 from the channel member 35 and extends along the radial direction of the shaft member 38.
  • the hair material 33 (32) constituting the long hair region 32R has a length L2 from the channel member 35 and extends along the radial direction of the shaft member 38.
  • the distance from the axis 38c of the shaft member 38 to the tip of the bristles 33 (32) is, for example, 20 mm to 30 mm.
  • the length L2 of the bristle material 33 (32) forming the long hair region 32R is longer than the length L1 of the bristle material 33 (31) forming the short hair region 31R.
  • the difference between the length L2 and the length L1 is, for example, the maximum depth of the cavity formed in the lower mold 41, that is, the surface 41a of the lower mold 41 (the depth of the convex part in the lower mold 41 where no cavity is formed).
  • the depth dimension L3 from the surface 41a) to the bottom surface 41b of the cavity recess can have the same value.
  • the difference between length L2 and length L1 may be greater than depth dimension L3. In other words, the relationship (L3+L1) ⁇ L2 may hold true.
  • the difference between the length L2 and the length L1 is, for example, 1.0 mm or more, 2.0 mm or less, or 3.0 mm or less.
  • the depth dimension L3 may be 1.0 mm or less, or 3.0 mm or less.
  • Lengths L1 and L2 are optimized according to depth dimension L3.
  • the distance L5 (FIG. 5) from the channel member 35 to the bottom surface 41b of the recess of the lower mold 41 can be set to the same value as the length L2 of the bristle material 33 (32) that constitutes the long bristle region 32R
  • the distance L4 from the outer peripheral surface of the shaft member 38 to the surface 41a can be set to the same value as the length L1 of the bristle material 33 (31) constituting the short bristle region 31R.
  • the bristle material 33 ( 32) when cleaning the mold using the mold cleaning brush 30, the bristle material 33 ( 32) can reach the surface 41a of the convex part of the lower mold 41, the side surface which is the inner surface of the cavity, and the bottom face 41b of the concave part, and as the shaft member 38 rotates, the bristles 33 (32) Resin and the like attached to the bottom surface 41b of the recess can be removed.
  • the bristle material 33 (31) constituting the short bristle region 31R can reach the surface 41a of the convex portion of the lower mold 41, and as the shaft member 38 rotates, the bristle material 33 (31) Resin and the like attached to the surface 41a of the convex portion of the lower mold 41 can be removed.
  • a plurality of bristle bundles are fixed to the outer periphery of the shaft member, thereby forming a plurality of bristle flocks on the outer periphery of the shaft member.
  • a space for fixing the bristle bundle to the shaft member is required around the area where the bristle bundle is implanted. Since it is necessary to secure a space, it is difficult to reduce the distance between adjacent bundles of hair material, and it is difficult to form a hair material with high density on the circumferential surface of the shaft member.
  • channel brush 36 (FIG. 7) is formed by fixing bristle material 33 to channel member 35 (FIG. 7). .
  • the channel brush 36 is spirally wound around the shaft member 38 (FIGS. 3, 4, and 8) and fixed (see FIG. 8).
  • both ends of the channel member 35 in the longitudinal direction may be fixed to the surface of the shaft member 38 by welding or the like.
  • the tips of some or all of the bristles 33 are cut off with a grinder or the like (see FIG. 9).
  • the channel brush 36 when the channel brush 36 is spirally wound and fixed, the channel It is possible to wrap subsequent portions of the brush 36 onto the shaft member 38, effectively depositing the bristle material 33 onto the shaft member 38 at a higher density than if the bristle material were implanted into the shaft member. It is possible to arrange the mold cleaning brush 30, and it is therefore possible to plan for a higher cleaning effect by the mold cleaning brush 30.
  • FIG. 10 is a plan view showing how the mold cleaning brush 30 for the lower mold 41 is cleaning the lower mold 41 in the first modification of the embodiment.
  • This lower mold 41 has a cavity 46 and a resin passage 45 formed as a recess 44 inside a parting surface 43 which is a convex part of the lower mold 41. 48.
  • the mold cleaning brush 30 for cleaning the lower mold 41 has, for example, a long bristled region 32R in a horizontally elongated shape at the center in the axial direction, corresponding to the shapes of the concave portions and convex portions in the lower mold 41.
  • Short hair regions 31R are provided on both sides thereof.
  • the long hair region 32R has a width such that it covers the entire cavity 46 located on the left side of FIG. 10 and also covers the entire cavity 46 located on the right side.
  • the long hair region 32R cleans the cavity 46 and the resin passage 45 as a recess of the lower mold 41.
  • the mold cleaning brush 30 for cleaning the upper mold corresponding to the lower mold 41 for example, one shown in FIG. 11 can be used.
  • the mold cleaning brush 30 shown in FIG. 11 has a short bristled region 31R in the center corresponding to the shapes of the concave and convex parts of the upper mold, long bristled regions 32R on both sides of the short bristled region 31R, and further outside.
  • a short hair region 31R is provided. The bottom surface of the recess of the upper mold cavity can be cleaned by the short bristled region 31R.
  • the configuration of the lower mold shown in FIG. 10 may be adopted as the upper mold. That is, the resin passage 45 and the cull portion 48 may be provided in the upper mold. In that case as well, the short bristles region 31R and the long bristles region 32R of the mold cleaning brush 30 are appropriately arranged in accordance with the configuration of the concave portions and convex portions of the upper mold, as in the case shown in FIG. 10.
  • FIG. 12 is a plan view showing another example of the lower mold 41 that can be cleaned by the mold cleaning brush 30 in the second modification of the embodiment.
  • a part of the parting surface 43 as a convex portion of the lower mold 41 extends so as to protrude toward the cavity 46 side, and the extended portion constitutes a dam portion 43D. That is, the convex portion of the lower die 41 includes at least one of the parting surface 43 and the surface of the dam portion 43D.
  • the lower mold 41 having such a shape may also be cleaned using a mold cleaning brush 30 as shown in FIG. 10, for example.
  • the configuration of the lower mold shown in FIG. 12 may be adopted as the upper mold. That is, the upper mold may be provided with not only the resin passage 45 and the cull portion 48 but also the dam portion 43D. In that case as well, the short bristles region 31R and long bristles region 32R of the mold cleaning brush 30 are appropriately arranged in accordance with the configuration of the concave portions and convex portions of the upper mold, as in the case shown in FIG. 10 and the like.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)

Abstract

The method for producing a cleaning brush for a mold (30) for cleaning a mold installed in a resin molding device comprises a step that prepares a channel brush (36) formed by fixing a bristle material (33) to a channel member (35), a step that wraps and fixes the channel brush in a spiral around a shaft member (38), and a step that cuts the tips of the bristle material (33). By cutting the tips of the bristle material (33), short bristle regions (31R) containing bristles (33) having a first length and long bristle regions (32R) containing bristles having a second length longer than the first length are formed in the channel brush on the shaft member (38).

Description

成形型用クリーニングブラシの製造方法および樹脂成形装置の製造方法Method for manufacturing mold cleaning brush and resin molding device
　本明細書は、成形型用クリーニングブラシの製造方法および樹脂成形装置の製造方法に関する。 The present specification relates to a method of manufacturing a cleaning brush for a mold and a method of manufacturing a resin molding device.
　樹脂成形装置においては、ＩＣ（Integrated　Circuit）、トランジスタ、コンデンサ等の電子素子が接続された基板が、成形対象物として準備される。トランスファモールド法、圧縮成形法（コンプレッションモールド法）および射出成形法（インジェクションモールド法）等を使用して樹脂成形を行なうことにより、基板上の電子素子が樹脂封止される。 In a resin molding apparatus, a substrate to which electronic elements such as an IC (Integrated Circuit), a transistor, and a capacitor are connected is prepared as a molding object. By performing resin molding using a transfer molding method, a compression molding method, an injection molding method, or the like, electronic elements on a substrate are encapsulated with a resin.
　樹脂成形装置の成形型には、樹脂成形の実施に伴って発生した樹脂（樹脂片または樹脂カスともいう）等が残存し得る。実開平０２－１３７２１７号公報（特許文献１）に開示されているように、成形型は、成形型用クリーニングブラシを利用して清掃される。 Resin (also referred to as resin pieces or resin scum) generated during resin molding may remain in the mold of the resin molding device. As disclosed in Japanese Utility Model Application Publication No. 02-137217 (Patent Document 1), the mold is cleaned using a mold cleaning brush.
実開平０２－１３７２１７号公報Utility Model Publication No. 02-137217
　実開平０２－１３７２１７号公報（特許文献１）に開示された成形型用クリーニングブラシにおいては、ブラシの植毛部の先端形状を成形型の形状に合うように定めている。特許文献１は、このようなブラシによれば、植毛部が、成形面の表面部に達して当該表面部の清掃をすることができるだけでなく、植毛部が、キャビティの底部にも達して当該底部の清掃をすることができると述べている。 In the mold cleaning brush disclosed in Japanese Utility Model Application Publication No. 02-137217 (Patent Document 1), the shape of the tip of the bristles of the brush is determined to match the shape of the mold. Patent Document 1 discloses that according to such a brush, the bristles can not only reach the surface of the molding surface and clean the surface, but also reach the bottom of the cavity and clean the surface. It states that the bottom can be cleaned.
　上記のようなブラシの製造方法では、複数の毛材束をシャフト部材の外周に固定することによって、シャフト部材の外周に複数の植毛部が構成される。毛材束をシャフト部材に固定する作業を行なうためのスペースが、毛材束を植毛する部分の周囲に必要である。スペースを確保する必要があるため、隣り合う毛材束の間の間隔を小さくすることが難しく、高い密度を有する毛材をシャフト部材の周面に構成することは難しい。 In the method for manufacturing a brush as described above, a plurality of bristle bundles are fixed to the outer periphery of the shaft member, thereby forming a plurality of bristle flocks on the outer periphery of the shaft member. A space for fixing the bristle bundle to the shaft member is required around the area where the bristle bundle is implanted. Since it is necessary to secure a space, it is difficult to reduce the distance between adjacent bristle bundles, and it is difficult to form a bristle material with high density on the circumferential surface of the shaft member.
　本明細書は、従来技術に比べてより高い密度を有する毛材をシャフト部材の周囲に構成することが可能な、成形型用クリーニングブラシの製造方法、および、樹脂成形装置の製造方法を開示することを目的とする。 The present specification discloses a method for manufacturing a cleaning brush for a mold, and a method for manufacturing a resin molding device, in which a bristle material having a higher density than in the prior art can be constructed around a shaft member. The purpose is to
　本開示のある局面において、樹脂成形装置に備えられる成形型を清掃するための成形型用クリーニングブラシの製造方法は、毛材がチャンネル部材に固定されることで形成されたチャンネルブラシを準備する工程と、軸方向に延びるシャフト部材の周囲に前記チャンネルブラシを螺旋状に巻き付けて固定する工程と、前記チャンネルブラシが前記シャフト部材に巻き付けられた状態で、一部または全部の前記毛材の先端を切断する工程と、を備え、一部または全部の前記毛材の先端を切断することにより、前記シャフト部材上の前記チャンネルブラシには、第１の長さを有する前記毛材を含む短毛領域と、前記第１の長さよりも長い第２の長さを有する前記毛材を含む長毛領域とが形成される。 In an aspect of the present disclosure, a method for manufacturing a mold cleaning brush for cleaning a mold provided in a resin molding apparatus includes a step of preparing a channel brush formed by fixing bristle material to a channel member. a step of spirally winding and fixing the channel brush around a shaft member extending in the axial direction; cutting a part or all of the tips of the bristle material so that the channel brush on the shaft member has a short bristle region including the bristle material having a first length. and a long hair region including the hair material having a second length longer than the first length.
　本開示の別の局面において、樹脂成形装置の製造方法は、成形型を備えた樹脂成形装置の製造方法であって、本開示のある局面における上記の成形型用クリーニングブラシの製造方法によって成形型用クリーニングブラシを作製する工程を備え、前記成形型用クリーニングブラシの前記短毛領域は、前記成形型の凸部に接触可能なように配置され、前記成形型用クリーニングブラシの前記長毛領域は、前記成形型の凹部に接触するように配置される。 In another aspect of the present disclosure, a method for manufacturing a resin molding device is a method for manufacturing a resin molding device including a mold, wherein the method for manufacturing a cleaning brush for a mold according to an aspect of the present disclosure the short hair region of the mold cleaning brush is arranged so as to be able to contact the convex portion of the mold, and the long hair region of the mold cleaning brush comprises: It is arranged so as to contact the recessed part of the mold.
　上記構成を備えた成形型用クリーニングブラシの製造方法、および、樹脂成形装置の製造方法によれば、従来技術に比べてより高い密度を有する毛材をシャフト部材の周囲に構成することができる。 According to the method for manufacturing a cleaning brush for a mold and the method for manufacturing a resin molding device having the above configurations, it is possible to construct a bristle material having a higher density around the shaft member than in the prior art.
樹脂成形装置の一例の機能ブロック図を示す。A functional block diagram of an example of a resin molding device is shown. 樹脂成形装置の内部の要部構造を模式的に示す平面図である。FIG. 2 is a plan view schematically showing the main structure inside the resin molding device. 図２に示すＩＩＩ－ＩＩＩ線に沿った矢視要部断面図である。FIG. 3 is a sectional view of a main part taken along line III-III shown in FIG. 2; 樹脂成形装置に備えられる成形型用クリーニングブラシの外観構造を模式的に示す図である。FIG. 2 is a diagram schematically showing the external structure of a mold cleaning brush provided in the resin molding apparatus. 樹脂成形装置に備えられる成形型用クリーニングブラシの長毛領域が下型の底面に接触している様子を示す断面図である。FIG. 3 is a cross-sectional view showing a state in which the long hair region of the mold cleaning brush provided in the resin molding apparatus is in contact with the bottom surface of the lower mold. 樹脂成形装置に備えられる成形型用クリーニングブラシの短毛領域および長毛領域が下型の表面に接触している様子を示す断面図である。FIG. 2 is a cross-sectional view showing a short bristled region and a long bristled region of a mold cleaning brush provided in the resin molding apparatus in contact with the surface of a lower mold. 成形型用クリーニングブラシの製造方法の準備工程を示す斜視図である。It is a perspective view showing the preparation process of the manufacturing method of the cleaning brush for molds. 成形型用クリーニングブラシの製造方法の固定工程を示す斜視図である。FIG. 3 is a perspective view showing a fixing step in a method for manufacturing a mold cleaning brush. 成形型用クリーニングブラシの製造方法の切断工程を示す斜視図である。FIG. 3 is a perspective view showing a cutting step in a method for manufacturing a mold cleaning brush. 実施の形態の第１変形例において、下型の成形型用クリーニングブラシが下型に対して清掃を行っている様子を示す平面図である。FIG. 7 is a plan view showing a lower mold cleaning brush cleaning the lower mold in a first modification of the embodiment. 実施の形態の第１変形例において、上型用の成形型用クリーニングブラシを示す平面図である。FIG. 7 is a plan view showing a mold cleaning brush for an upper mold in a first modification of the embodiment. 実施の形態の第２変形例において、下型の構成を示す平面図である。FIG. 7 is a plan view showing the configuration of a lower die in a second modification of the embodiment.
　以下に、本開示の実施の形態について説明する。以下に説明する実施の形態において、個数、量などに言及する場合、特に記載がある場合を除き、本開示の範囲は必ずしもその個数、量などに限定されない。各々の構成要素は、特に記載がある場合を除き、本開示にとって必ずしも必須のものではない。同一の部品および相当部品には同一の参照番号を付し、重複する説明は繰り返さない場合がある。 Embodiments of the present disclosure will be described below. In the embodiments described below, when referring to the number, amount, etc., the scope of the present disclosure is not necessarily limited to the number, amount, etc. unless otherwise specified. Each component is not necessarily essential to the present disclosure unless otherwise specified. Identical and equivalent parts will be given the same reference numerals and duplicate descriptions may not be repeated.
　（樹脂成形装置１００）
　図１は、実施の形態における樹脂成形装置１００の一例の機能ブロック図を示している。樹脂成形装置１００は、制御部２、供給モジュール１、樹脂成形モジュール４、および成形品搬出モジュール５を備えている。制御部２は、供給モジュール１、樹脂成形モジュール４、および成形品搬出モジュール５を制御可能に構成されている。 (Resin molding device 100)
FIG. 1 shows a functional block diagram of an example of a resin molding apparatus 100 in an embodiment. The resin molding apparatus 100 includes a control section 2, a supply module 1, a resin molding module 4, and a molded product delivery module 5. The control unit 2 is configured to be able to control the supply module 1, the resin molding module 4, and the molded product delivery module 5.
　供給モジュール１は、成形前の成形対象物および樹脂材料を、樹脂成形モジュール４に供給可能なように構成される。樹脂成形モジュール４は、成形型を型締めして成形対象物を樹脂成形することによって、樹脂成形品を製造可能なように構成される。成形品搬出モジュール５は、成形後の成形対象物の不要樹脂部分を除去した後、樹脂成形品を搬出可能に構成される。供給モジュール１と、樹脂成形モジュール４と、成形品搬出モジュール５とは、互いに着脱可能であるとともに交換可能でもある。また、樹脂成形モジュール４の個数についても増減可能である。 The supply module 1 is configured to be able to supply the molding object and resin material to the resin molding module 4 before molding. The resin molding module 4 is configured to be able to manufacture a resin molded product by clamping a mold and molding a molded object with resin. The molded product carrying out module 5 is configured to be able to carry out the resin molded product after removing unnecessary resin portions of the molded object after molding. The supply module 1, the resin molding module 4, and the molded product delivery module 5 are mutually removable and replaceable. Further, the number of resin molded modules 4 can also be increased or decreased.
　図２は、樹脂成形装置１００の内部の要部構造を模式的に示す平面図である。図３は、図２に示すＩＩＩ－ＩＩＩ線に沿った矢視要部断面図である。図２に主として示すように、樹脂成形装置１００は、供給部１０、成形型用クリーニングブラシ３０、成形部４０、搬出機構５０、および排出部６０を備える。 FIG. 2 is a plan view schematically showing the main internal structure of the resin molding apparatus 100. FIG. 3 is a cross-sectional view of the main part taken along the line III--III shown in FIG. As mainly shown in FIG. 2, the resin molding apparatus 100 includes a supply section 10, a mold cleaning brush 30, a molding section 40, a carry-out mechanism 50, and a discharge section 60.
　図１～図３を参照して、供給モジュール１は、主として供給部１０を含んでいる。供給部１０には、成形前の成形対象物が配置される。成形対象物は一般的には半導体チップ等の電子素子が接続された基板である。基板として、たとえばリードフレーム、プリント配線板、金属製基板、樹脂製基板、半導体基板、およびセラミック製基板が用いられる。 Referring to FIGS. 1 to 3, the supply module 1 mainly includes a supply section 10. As shown in FIG. A molding object before molding is placed in the supply section 10 . The object to be molded is generally a substrate to which electronic elements such as semiconductor chips are connected. As the substrate, for example, a lead frame, a printed wiring board, a metal substrate, a resin substrate, a semiconductor substrate, and a ceramic substrate are used.
　樹脂成形装置１００は不図示の搬送機構をさらに備えており、この搬送機構は、供給モジュール１と樹脂成形モジュール４との間を移動可能に構成されている。搬送機構の退避位置は、供給モジュール１にある。搬送機構により、基板が、樹脂材料とともに供給部１０から成形部４０に搬入される。樹脂材料としては、たとえば粉末状の熱硬化性樹脂を押し固めることで形成されたタブレット状樹脂が用いられる。 The resin molding apparatus 100 further includes a transport mechanism (not shown), and this transport mechanism is configured to be movable between the supply module 1 and the resin molding module 4. The retracted position of the transport mechanism is in the supply module 1. The substrate is transported from the supply section 10 to the molding section 40 together with the resin material by the transport mechanism. As the resin material, for example, a tablet-shaped resin formed by compacting a powdered thermosetting resin is used.
　樹脂成形モジュール４は、主として成形部４０を含んでいる。成形部４０は、成形型としての下型４１および上型４２（図３）と、成形型を型締めする不図示の型締め機構とを含んでいる。成形部４０において、下型４１および上型４２が型締め機構によって型締めされることにより成形対象物が樹脂成形される。 The resin molding module 4 mainly includes a molding section 40. The molding section 40 includes a lower mold 41 and an upper mold 42 (FIG. 3) as molds, and a mold clamping mechanism (not shown) that clamps the mold. In the molding section 40, a lower mold 41 and an upper mold 42 are clamped by a mold clamping mechanism, whereby a molding object is resin molded.
　成形品搬出モジュール５は、主に排出部６０を含んでいる。成形後の成形対象物は搬出機構５０によって成形部４０から排出部６０に搬出され、排出部６０においてディゲート処理が行なわれ、アウトマガジン部に最終的に格納される。 The molded product unloading module 5 mainly includes a discharge section 60. The molded object after molding is transported from the molding section 40 to the discharge section 60 by the discharge mechanism 50, subjected to degate processing in the discharge section 60, and finally stored in the out magazine section.
　搬出機構５０は、樹脂成形モジュール４と成形品搬出モジュール５との間を移動可能に構成されている。搬出機構５０は、成形型用クリーニングブラシ３０を有している。ここでは、搬出機構５０は、第１本体部５１および第２本体部５２を含む。第１本体部５１の矢印Ａ１方向の移動と、第２本体部５２の矢印Ａ２方向の移動とによって、成形後の成形対象物が排出される。第２本体部５２が矢印Ａ２方向に移動する際に、成形型の清掃が行なわれる。 The carrying-out mechanism 50 is configured to be movable between the resin molding module 4 and the molded product carrying-out module 5. The carry-out mechanism 50 has a mold cleaning brush 30. Here, the unloading mechanism 50 includes a first main body part 51 and a second main body part 52. The molded object after molding is discharged by the movement of the first body part 51 in the direction of arrow A1 and the movement of the second body part 52 in the direction of arrow A2. When the second main body portion 52 moves in the direction of arrow A2, the mold is cleaned.
　ここで、搬出機構５０の第２本体部５２における成形部４０に近い側の部分に、成形型用クリーニングブラシ３０が設けられている。成形型としての下型４１および上型４２を用いて成形対象物を樹脂成形し、成形型用クリーニングブラシ３０を使用して、成形型から樹脂を除去することによって清掃を行なう。 Here, a mold cleaning brush 30 is provided in a portion of the second main body portion 52 of the unloading mechanism 50 on the side closer to the molding portion 40 . A molding object is molded with resin using a lower mold 41 and an upper mold 42 as molds, and cleaning is performed by removing the resin from the mold using a mold cleaning brush 30.
　樹脂成形装置１００の成形型を清掃するために、樹脂成形装置１００の搬出機構５０に１つ以上の成形型用クリーニングブラシ３０（以下に詳述する）が設けられる。図３に示すように２つが設けられる場合には、一方の成形型用クリーニングブラシ３０は下型４１から樹脂を除去し、他方の成形型用クリーニングブラシ３０は上型４２（図３）から樹脂を除去し、これらにより成形部４０の成形型に対して清掃が行われる。 In order to clean the mold of the resin molding apparatus 100, one or more mold cleaning brushes 30 (described in detail below) are provided in the unloading mechanism 50 of the resin molding apparatus 100. When two mold cleaning brushes are provided as shown in FIG. 3, one mold cleaning brush 30 removes the resin from the lower mold 41, and the other mold cleaning brush 30 removes the resin from the upper mold 42 (FIG. 3). are removed, and the mold of the molding section 40 is cleaned by these.
　（成形型用クリーニングブラシ３０およびその製造方法）
　図４は、成形型用クリーニングブラシ３０の外観構造を模式的に示す図である。図５は、成形型用クリーニングブラシ３０の長毛領域３２Ｒが下型４１のキャビティ（凹部）の底面４１ｂに接触している様子を示す断面図である。図６は、成形型用クリーニングブラシ３０の短毛領域３１Ｒおよび長毛領域３２Ｒが下型４１の表面（表面４１ａおよび凹部の底面４１ｂ）に接触している様子を示す断面図である。 (Mold cleaning brush 30 and its manufacturing method)
FIG. 4 is a diagram schematically showing the external structure of the mold cleaning brush 30. As shown in FIG. FIG. 5 is a sectional view showing how the long hair region 32R of the mold cleaning brush 30 is in contact with the bottom surface 41b of the cavity (recess) of the lower mold 41. FIG. 6 is a cross-sectional view showing how the short-hair region 31R and long-hair region 32R of the mold cleaning brush 30 are in contact with the surface of the lower mold 41 (the surface 41a and the bottom surface 41b of the recess).
　図３～図６に示すように、成形型用クリーニングブラシ３０はいわゆるロールブラシの形態を有する。成形型用クリーニングブラシ３０は、軸心３８ｃ（図３）を中心として回転するシャフト部材３８と、シャフト部材３８に固定されたチャンネル部材３５（図３、図７も参照）と、チャンネル部材３５に固定された毛材３３と、を備えている。シャフト部材３８は、一方側の端部から他方側の端部に向かって軸心３８ｃに沿って延びる円柱状の形状を有している。 As shown in FIGS. 3 to 6, the mold cleaning brush 30 has the form of a so-called roll brush. The mold cleaning brush 30 includes a shaft member 38 that rotates around an axis 38c (FIG. 3), a channel member 35 (see also FIGS. 3 and 7) fixed to the shaft member 38, and A fixed bristle material 33 is provided. The shaft member 38 has a cylindrical shape extending along an axis 38c from one end toward the other end.
　成形型用クリーニングブラシ３０の製造方法としては、チャンネル部材３５（図７）に毛材３３が固定されることでチャンネルブラシ３６（図７）が形成される。このようなチャンネルブラシ３６を準備した後に、シャフト部材３８（図３、図４、図８）の周囲にチャンネルブラシ３６を螺旋状に巻き付けて固定する（図８参照）。この際、チャンネル部材３５の長手方向における端部３５Ｔ（図８）を、シャフト部材３８の表面上に溶接などで固定するとよい。その後、チャンネルブラシ３６がシャフト部材３８に巻き付けられた状態で、一部または全部の毛材３３の先端をグラインダーなどで切断する（図９参照）。 As a method for manufacturing the mold cleaning brush 30, a channel brush 36 (FIG. 7) is formed by fixing the bristle material 33 to the channel member 35 (FIG. 7). After preparing such a channel brush 36, the channel brush 36 is spirally wound around the shaft member 38 (FIGS. 3, 4, and 8) and fixed (see FIG. 8). At this time, it is preferable to fix the end portion 35T (FIG. 8) of the channel member 35 in the longitudinal direction onto the surface of the shaft member 38 by welding or the like. Thereafter, with the channel brush 36 wound around the shaft member 38, the tips of some or all of the bristles 33 are cut off with a grinder or the like (see FIG. 9).
　これにより、シャフト部材３８上のチャンネルブラシ３６には、第１の長さＬ１（図５）を有する毛材３３（３１）を含む短毛領域３１Ｒと、第１の長さＬ１よりも長い第２の長さＬ２（図５）を有する毛材３３（３２）を含む長毛領域３２Ｒとが形成される。 As a result, the channel brush 36 on the shaft member 38 has a short bristled region 31R including the bristles 33 (31) having the first length L1 (FIG. 5), and a short bristled region 31R having the first length L1 (FIG. 5). A long hair region 32R including a hair material 33 (32) having a length L2 (FIG. 5) of 2 is formed.
　図３、図５、図６に示すように、本実施の形態の成形型用クリーニングブラシ３０においては、複数の短毛領域３１Ｒと複数の長毛領域３２Ｒとが、シャフト部材３８を中心とする周方向に交互に並んで配置されている。ここでは、シャフト部材３８の周囲に２つの短毛領域３１Ｒと２つの長毛領域３２Ｒとが交互に設けられている。図４に示すように、成形型用クリーニングブラシ３０においては、ある特定の位置の断面形状を見た場合には、複数の短毛領域３１Ｒと複数の長毛領域３２Ｒとが軸方向において交互に配置されている（図９も参照）。 As shown in FIGS. 3, 5, and 6, in the mold cleaning brush 30 of this embodiment, a plurality of short hair regions 31R and a plurality of long hair regions 32R are arranged around the shaft member 38. They are arranged in alternating directions. Here, two short hair regions 31R and two long hair regions 32R are alternately provided around the shaft member 38. As shown in FIG. 4, in the mold cleaning brush 30, when looking at the cross-sectional shape at a certain position, a plurality of short hair regions 31R and a plurality of long hair regions 32R are arranged alternately in the axial direction. (See also Figure 9).
　短毛領域３１Ｒに含まれる毛材３３（３１）は、その根元側からその先端側に向かうにつれて、シャフト部材３８の径方向に沿ってチャンネル部材３５から径方向外側に向かって突出するように延びている。長毛領域３２Ｒに含まれる毛材３３（３２）も、その根元側からその先端側に向かうにつれて、シャフト部材３８の径方向に沿ってチャンネル部材３５から径方向外側に向かって突出するように延びている。 The hair material 33 (31) included in the short hair region 31R extends so as to protrude radially outward from the channel member 35 along the radial direction of the shaft member 38 as it goes from the root side to the tip side. ing. The hair material 33 (32) included in the long hair region 32R also extends so as to protrude radially outward from the channel member 35 along the radial direction of the shaft member 38 as it goes from the root side to the tip side. There is.
　短毛領域３１Ｒが設けられているシャフト部材３８を中心とする周方向の角度範囲は、たとえば、６０°以上９０°以下に設定可能であり、長毛領域３２Ｒが設けられているシャフト部材３８を中心とする周方向の角度範囲も、たとえば、６０°以上９０°以下に設定可能である。 The angular range in the circumferential direction around the shaft member 38 where the short hair region 31R is provided can be set, for example, to 60° or more and 90° or less, and the angle range around the shaft member 38 where the long hair region 32R is provided can be set, for example. The angle range in the circumferential direction can also be set to, for example, 60° or more and 90° or less.
　短毛領域３１Ｒについては、ここでいう周方向の角度範囲とは、短毛領域３１Ｒのうちの回転方向の最も前方側に位置する毛材３３（３１）の根元部分と、短毛領域３１Ｒのうちの回転方向の最も後方側に位置する毛材３３（３１）の根元部分とを特定し、軸心３８ｃに対して垂直であり且つこれら２つの根元部分を含む２次元平面内において、これら２つの根元部分と軸心３８ｃとがなす角度のことである。 Regarding the short hair region 31R, the angle range in the circumferential direction here refers to the root portion of the hair material 33 (31) located furthest forward in the rotational direction of the short hair region 31R, and The root portion of the bristles 33 (31) located at the rearmost side in the rotational direction is identified, and within a two-dimensional plane that is perpendicular to the axis 38c and includes these two root portions, This is the angle formed between the root portion of the shaft and the axis 38c.
　長毛領域３２Ｒについては、ここでいう周方向の角度範囲とは、長毛領域３２Ｒのうちの回転方向の最も前方側に位置する毛材３３（３２）の根元部分と、長毛領域３２Ｒのうちの回転方向の最も後方側に位置する毛材３３（３２）の根元部分とを特定し、軸心３８ｃに対して垂直であり且つこれら２つの根元部分を含む２次元平面内において、これら２つの根元部分と軸心３８ｃとがなす角度のことである。 Regarding the long hair region 32R, the angle range in the circumferential direction here refers to the root portion of the hair material 33 (32) located furthest forward in the rotational direction of the long hair region 32R, and the rotational range of the long hair region 32R. The root portion of the hair material 33 (32) located at the rearmost side in the direction is specified, and in a two-dimensional plane that is perpendicular to the axis 38c and includes these two root portions, these two root portions are This is the angle formed by the axis 38c and the axis 38c.
　たとえば、６０°の角度範囲で設けられた３つの短毛領域３１Ｒと、６０°の角度範囲で設けられた３つの長毛領域３２Ｒとを、シャフト部材３８の周囲に交互に配置可能である。短毛領域３１Ｒおよび長毛領域３２Ｒは、それぞれ９０°の角度範囲で２つ設けてもよいし、これらを５０°および７０°といった異なる角度範囲で設けて交互に配置してもよい。 For example, three short hair regions 31R provided in an angular range of 60° and three long hair regions 32R provided in an angular range of 60° can be alternately arranged around the shaft member 38. Two short hair regions 31R and two long hair regions 32R may be provided each with an angular range of 90°, or they may be provided with different angular ranges such as 50° and 70° and arranged alternately.
　図５に示すように、短毛領域３１Ｒを構成している毛材３３（３１）は、チャンネル部材３５から長さＬ１を有して、シャフト部材３８の径方向に沿って延びている。長毛領域３２Ｒを構成している毛材３３（３２）は、チャンネル部材３５から長さＬ２を有して、シャフト部材３８の径方向に沿って延びている。 As shown in FIG. 5, the bristle material 33 (31) constituting the short bristle region 31R has a length L1 from the channel member 35 and extends along the radial direction of the shaft member 38. The hair material 33 (32) constituting the long hair region 32R has a length L2 from the channel member 35 and extends along the radial direction of the shaft member 38.
　シャフト部材３８の軸心３８ｃから毛材３３（３２）の先端までの距離は、たとえば２０ｍｍ～３０ｍｍである。本実施の形態においては、長毛領域３２Ｒを構成している毛材３３（３２）の長さＬ２は、短毛領域３１Ｒを構成している毛材３３（３１）の長さＬ１よりも長い。 The distance from the axis 38c of the shaft member 38 to the tip of the bristles 33 (32) is, for example, 20 mm to 30 mm. In this embodiment, the length L2 of the bristle material 33 (32) forming the long hair region 32R is longer than the length L1 of the bristle material 33 (31) forming the short hair region 31R.
　長さＬ２と長さＬ１との差は、たとえば、下型４１に形成されているキャビティの最大深さ、すなわち、下型４１の表面４１ａ（キャビティが形成されていない下型４１における凸部の表面４１ａ）からキャビティの凹部の底面４１ｂまでの深さ寸法Ｌ３と同一の値にすることができる。長さＬ２と長さＬ１との差は、深さ寸法Ｌ３より大きくてもよい。換言すると、（Ｌ３＋Ｌ１）≦Ｌ２の関係が成立していてもよい。仕様にもよるが、長さＬ２と長さＬ１との差は、たとえば１．０ｍｍ以上、２．０ｍｍ以下、または３．０ｍｍ以下である。深さ寸法Ｌ３は、１．０ｍｍ以下であったり、３．０ｍｍ以下であったりする。深さ寸法Ｌ３に合わせて長さＬ１，Ｌ２が最適化される。 The difference between the length L2 and the length L1 is, for example, the maximum depth of the cavity formed in the lower mold 41, that is, the surface 41a of the lower mold 41 (the depth of the convex part in the lower mold 41 where no cavity is formed). The depth dimension L3 from the surface 41a) to the bottom surface 41b of the cavity recess can have the same value. The difference between length L2 and length L1 may be greater than depth dimension L3. In other words, the relationship (L3+L1)≦L2 may hold true. Although it depends on the specifications, the difference between the length L2 and the length L1 is, for example, 1.0 mm or more, 2.0 mm or less, or 3.0 mm or less. The depth dimension L3 may be 1.0 mm or less, or 3.0 mm or less. Lengths L1 and L2 are optimized according to depth dimension L3.
　図４～図６に示すように、成形型用クリーニングブラシ３０を用いて下型４１の清掃を行う際には、長毛領域３２Ｒを構成している毛材３３（３２）の先端部が下型４１の凹部の底面４１ｂに接触し、短毛領域３１Ｒを構成している毛材３３（３１）の先端部が下型４１の凸部の表面４１ａに接触するように、成形型用クリーニングブラシ３０が下型４１に接近する方向に移動させられる。 As shown in FIGS. 4 to 6, when cleaning the lower mold 41 using the mold cleaning brush 30, the tip of the bristle material 33 (32) constituting the long hair region 32R is removed from the lower mold. Cleaning brush 30 for molding mold is placed in such a way that it contacts bottom surface 41b of concave portion 41 and the tip of bristle material 33 (31) constituting short bristle region 31R contacts surface 41a of convex portion of lower mold 41. is moved in a direction approaching the lower die 41.
　一例として、チャンネル部材３５から下型４１の凹部の底面４１ｂまでの距離Ｌ５（図５）は、長毛領域３２Ｒを構成している毛材３３（３２）の長さＬ２と同じ値に設定でき、シャフト部材３８の外周面から表面４１ａまでの距離Ｌ４は、短毛領域３１Ｒを構成している毛材３３（３１）の長さＬ１と同じ値に設定できる。 As an example, the distance L5 (FIG. 5) from the channel member 35 to the bottom surface 41b of the recess of the lower mold 41 can be set to the same value as the length L2 of the bristle material 33 (32) that constitutes the long bristle region 32R, The distance L4 from the outer peripheral surface of the shaft member 38 to the surface 41a can be set to the same value as the length L1 of the bristle material 33 (31) constituting the short bristle region 31R.
　以上のような成形型用クリーニングブラシ３０を備えた樹脂成形装置１００においては、成形型用クリーニングブラシ３０を用いて成形型の清掃を行う際に、長毛領域３２Ｒを構成している毛材３３（３２）は、下型４１の凸部の表面４１ａおよびキャビティの内表面である側面や凹部の底面４１ｂに到達することができ、シャフト部材３８が回転することに伴い、毛材３３（３２）は凹部の底面４１ｂなどに付着した樹脂などを除去することができる。短毛領域３１Ｒを構成している毛材３３（３１）は、下型４１の凸部の表面４１ａに到達することができ、シャフト部材３８が回転することに伴い、毛材３３（３１）は下型４１の凸部の表面４１ａなどに付着した樹脂などを除去することができる。 In the resin molding apparatus 100 equipped with the mold cleaning brush 30 as described above, when cleaning the mold using the mold cleaning brush 30, the bristle material 33 ( 32) can reach the surface 41a of the convex part of the lower mold 41, the side surface which is the inner surface of the cavity, and the bottom face 41b of the concave part, and as the shaft member 38 rotates, the bristles 33 (32) Resin and the like attached to the bottom surface 41b of the recess can be removed. The bristle material 33 (31) constituting the short bristle region 31R can reach the surface 41a of the convex portion of the lower mold 41, and as the shaft member 38 rotates, the bristle material 33 (31) Resin and the like attached to the surface 41a of the convex portion of the lower mold 41 can be removed.
　（作用および効果）
　冒頭で述べたように、従来のブラシの製造方法においては、複数の毛材束をシャフト部材の外周に固定することによって、シャフト部材の外周に複数の植毛部が構成される。毛材束をシャフト部材に固定する作業を行なうためのスペースが、毛材束を植毛する部分の周囲に必要である。スペースを確保する必要があるため、隣り合う毛材束の間の間隔を小さくすることが難しく、高い密度を有する毛材をシャフト部材の周面に構成することは難しい。また、従来のブラシの製造方法においては、植毛部を構成するための複数の毛材束を用意し、複数の毛材束の各々をシャフト部材に順次固定してくという作業が必要になる。このような手法では、複数の毛材束の各々をシャフト部材に固定するという多数回の作業が必要になる。 (action and effect)
As mentioned at the beginning, in the conventional brush manufacturing method, a plurality of bristle bundles are fixed to the outer periphery of the shaft member, thereby forming a plurality of bristle flocks on the outer periphery of the shaft member. A space for fixing the bristle bundle to the shaft member is required around the area where the bristle bundle is implanted. Since it is necessary to secure a space, it is difficult to reduce the distance between adjacent bundles of hair material, and it is difficult to form a hair material with high density on the circumferential surface of the shaft member. Furthermore, in the conventional method of manufacturing a brush, it is necessary to prepare a plurality of bristle bundles for forming the bristle-planting section and to sequentially fix each of the plurality of bristle bundles to the shaft member. Such a method requires multiple operations to fix each of the plurality of hair bundles to the shaft member.
　これに対して本実施の形態の成形型用クリーニングブラシ３０の製造方法によれば、チャンネル部材３５（図７）に毛材３３が固定されることでチャンネルブラシ３６（図７）が形成される。このようなチャンネルブラシ３６を準備した後、シャフト部材３８（図３、図４、図８）の周囲にチャンネルブラシ３６を螺旋状に巻き付けて固定する（図８参照）。この際、チャンネル部材３５の長手方向における両端部を、シャフト部材３８の表面上に溶接などで固定するとよい。その後、チャンネルブラシ３６がシャフト部材３８に巻き付けられた状態で、一部または全部の毛材３３の先端をグラインダーなどで切断する（図９参照）。 On the other hand, according to the method for manufacturing mold cleaning brush 30 of the present embodiment, channel brush 36 (FIG. 7) is formed by fixing bristle material 33 to channel member 35 (FIG. 7). . After preparing such a channel brush 36, the channel brush 36 is spirally wound around the shaft member 38 (FIGS. 3, 4, and 8) and fixed (see FIG. 8). At this time, both ends of the channel member 35 in the longitudinal direction may be fixed to the surface of the shaft member 38 by welding or the like. Thereafter, with the channel brush 36 wound around the shaft member 38, the tips of some or all of the bristles 33 are cut off with a grinder or the like (see FIG. 9).
　上記の製造方法によれば、チャンネルブラシ３６を螺旋状に巻き付けて固定する際に、シャフト部材３８に１回前に（１周前に）巻いたチャンネルブラシ３６の部分に隣接するように、チャンネルブラシ３６の次なる部分をシャフト部材３８に巻いていくことが可能であり、毛材をシャフト部材に植え込んでいく場合に比べて、毛材３３を高い密度で、シャフト部材３８上に効率的に配置することが可能であり、ひいては成形型用クリーニングブラシ３０によるより高い清掃効果を企図することが可能である。 According to the above manufacturing method, when the channel brush 36 is spirally wound and fixed, the channel It is possible to wrap subsequent portions of the brush 36 onto the shaft member 38, effectively depositing the bristle material 33 onto the shaft member 38 at a higher density than if the bristle material were implanted into the shaft member. It is possible to arrange the mold cleaning brush 30, and it is therefore possible to plan for a higher cleaning effect by the mold cleaning brush 30.
　（実施の形態の第１変形例）
　図１０は、実施の形態の第１変形例において、下型４１用の成形型用クリーニングブラシ３０が下型４１に対して清掃を行っている様子を示す平面図である。この下型４１は、下型４１の凸部であるパーティング面４３の内側に、凹部４４として、キャビティ４６および樹脂通路４５が形成されており、キャビティ４６は複数の樹脂通路４５を介してカル部４８に接続している。 (First modification of the embodiment)
FIG. 10 is a plan view showing how the mold cleaning brush 30 for the lower mold 41 is cleaning the lower mold 41 in the first modification of the embodiment. This lower mold 41 has a cavity 46 and a resin passage 45 formed as a recess 44 inside a parting surface 43 which is a convex part of the lower mold 41. 48.
　このような下型４１を清掃するための成形型用クリーニングブラシ３０としては、たとえば、下型４１における凹部および凸部の形状に対応して、軸方向における中央に長毛領域３２Ｒが横長の形状で設けられ、その両側に短毛領域３１Ｒが設けられている。長毛領域３２Ｒは、図１０の左側に位置するキャビティ４６の全部を覆うとともに、右側に位置するキャビティ４６の全部を覆うような幅を有している。長毛領域３２Ｒにより、下型４１の凹部として、キャビティ４６および樹脂通路４５が清掃される。 The mold cleaning brush 30 for cleaning the lower mold 41 has, for example, a long bristled region 32R in a horizontally elongated shape at the center in the axial direction, corresponding to the shapes of the concave portions and convex portions in the lower mold 41. Short hair regions 31R are provided on both sides thereof. The long hair region 32R has a width such that it covers the entire cavity 46 located on the left side of FIG. 10 and also covers the entire cavity 46 located on the right side. The long hair region 32R cleans the cavity 46 and the resin passage 45 as a recess of the lower mold 41.
　上記の下型４１に対応する上型を清掃するための成形型用クリーニングブラシ３０としては、たとえば、図１１に示すようなものを用いることができる。図１１に示す成形型用クリーニングブラシ３０は、上型における凹部および凸部の形状に対応して、中央に短毛領域３１Ｒが設けられ、その両側に長毛領域３２Ｒが設けられ、そのさらに外側に短毛領域３１Ｒが設けられている。短毛領域３１Ｒによって、上型のキャビティの凹部の底面が清掃可能である。 As the mold cleaning brush 30 for cleaning the upper mold corresponding to the lower mold 41, for example, one shown in FIG. 11 can be used. The mold cleaning brush 30 shown in FIG. 11 has a short bristled region 31R in the center corresponding to the shapes of the concave and convex parts of the upper mold, long bristled regions 32R on both sides of the short bristled region 31R, and further outside. A short hair region 31R is provided. The bottom surface of the recess of the upper mold cavity can be cleaned by the short bristled region 31R.
　図１０に示す下型の構成が、上型に採用されてもよい。すなわち、上型に樹脂通路４５やカル部４８が設けられてもよい。その場合にも、上型の凹部および凸部の構成に合わせて成形型用クリーニングブラシ３０の短毛領域３１Ｒおよび長毛領域３２Ｒが、図１０に示す場合と同様に適切に配置される。 The configuration of the lower mold shown in FIG. 10 may be adopted as the upper mold. That is, the resin passage 45 and the cull portion 48 may be provided in the upper mold. In that case as well, the short bristles region 31R and the long bristles region 32R of the mold cleaning brush 30 are appropriately arranged in accordance with the configuration of the concave portions and convex portions of the upper mold, as in the case shown in FIG. 10.
　（実施の形態の第２変形例）
　図１２は、実施の形態の第２変形例において、成形型用クリーニングブラシ３０によって清掃可能な下型４１の別の例を示した平面図である。この下型４１においては、下型４１の凸部としてのパーティング面４３の一部がキャビティ４６側にはみ出るように延出しており、当該延出した部分がダム部４３Ｄを構成している。すなわち、下型４１における凸部としては、パーティング面４３、および、ダム部４３Ｄの表面のうちの少なくとも一つを含んでいる。このような形状を有する下型４１についても、たとえば図１０に示すような成形型用クリーニングブラシ３０を用いて清掃をするとよい。 (Second modification of the embodiment)
FIG. 12 is a plan view showing another example of the lower mold 41 that can be cleaned by the mold cleaning brush 30 in the second modification of the embodiment. In this lower mold 41, a part of the parting surface 43 as a convex portion of the lower mold 41 extends so as to protrude toward the cavity 46 side, and the extended portion constitutes a dam portion 43D. That is, the convex portion of the lower die 41 includes at least one of the parting surface 43 and the surface of the dam portion 43D. The lower mold 41 having such a shape may also be cleaned using a mold cleaning brush 30 as shown in FIG. 10, for example.
　図１２に示す下型の構成が、上型に採用されてもよい。すなわち、上型に樹脂通路４５やカル部４８だけでなく、ダム部４３Ｄが設けられてもよい。その場合にも、上型の凹部および凸部の構成に合わせて成形型用クリーニングブラシ３０の短毛領域３１Ｒおよび長毛領域３２Ｒが、図１０などに示す場合と同様に適切に配置される。 The configuration of the lower mold shown in FIG. 12 may be adopted as the upper mold. That is, the upper mold may be provided with not only the resin passage 45 and the cull portion 48 but also the dam portion 43D. In that case as well, the short bristles region 31R and long bristles region 32R of the mold cleaning brush 30 are appropriately arranged in accordance with the configuration of the concave portions and convex portions of the upper mold, as in the case shown in FIG. 10 and the like.
　以上、本開示の実施の形態について説明したが、今回開示された実施の形態はすべての点で例示であって制限的なものではないと考えられるべきである。本開示の範囲は請求の範囲によって示され、請求の範囲と均等の意味および範囲内でのすべての変更が含まれることが意図される。 Although the embodiments of the present disclosure have been described above, the embodiments disclosed this time should be considered to be illustrative in all respects and not restrictive. The scope of the present disclosure is indicated by the claims, and it is intended that all changes within the meaning and range equivalent to the claims are included.
　１　供給モジュール、２　制御部、４　樹脂成形モジュール、５　成形品搬出モジュール、１０　供給部、３０　成形型用クリーニングブラシ、３１Ｒ　短毛領域、３２Ｒ　長毛領域、３３　毛材、３５　チャンネル部材、３５Ｔ　端部、３６　チャンネルブラシ、３８　シャフト部材、３８ｃ　軸心、４０　成形部、４１　下型、４１ａ　表面、４１ｂ　底面、４２　上型、４３　パーティング面、４３Ｄ　ダム部、４４　凹部、４５　樹脂通路、４６　キャビティ、４８　カル部、５０　搬出機構、５１　第１本体部、５２　第２本体部、６０　排出部、１００　樹脂成形装置、Ｌ１　長さ（第１の長さ）、Ｌ２　長さ（第２の長さ）、Ｌ３　寸法、Ｌ４，Ｌ５　距離。 1 supply module, 2 control unit, 4 resin molding module, 5 molded product delivery module, 10 supply unit, 30 mold cleaning brush, 31R short hair region, 32R long hair region, 33 hair material, 35 channel member, 35T end , 36 channel brush, 38 shaft member, 38c axis, 40 molding part, 41 lower mold, 41a surface, 41b bottom surface, 42 upper mold, 43 parting surface, 43D dam part, 44 recess, 45 resin passage, 46 cavity, 48 Cull part, 50 Unloading mechanism, 51 First main body part, 52 Second main body part, 60 Discharge part, 100 Resin molding device, L1 length (first length), L2 length (second length) , L3 dimension, L4, L5 distance.

Claims (7)

  1. 　樹脂成形装置に備えられる成形型を清掃するための成形型用クリーニングブラシの製造方法であって、
    　毛材がチャンネル部材に固定されることで形成されたチャンネルブラシを準備する工程と、
    　軸方向に延びるシャフト部材の周囲に前記チャンネルブラシを螺旋状に巻き付けて固定する工程と、
    　前記チャンネルブラシが前記シャフト部材に巻き付けられた状態で、一部または全部の前記毛材の先端を切断する工程と、を備え、
    　一部または全部の前記毛材の先端を切断することにより、前記シャフト部材上の前記チャンネルブラシには、第１の長さを有する前記毛材を含む短毛領域と、前記第１の長さよりも長い第２の長さを有する前記毛材を含む長毛領域とが形成される、
    成形型用クリーニングブラシの製造方法。     A method for manufacturing a mold cleaning brush for cleaning a mold provided in a resin molding device, the method comprising:
    preparing a channel brush formed by fixing bristle material to a channel member;
    spirally winding and fixing the channel brush around a shaft member extending in the axial direction;
    cutting off the tips of some or all of the bristle material in a state where the channel brush is wound around the shaft member,
    By cutting off some or all of the tips of the bristle material, the channel brush on the shaft member has a short bristle region including the bristle material having a first length and a short bristle region that is longer than the first length. a long hair region including the hair material having a second length that is also longer;
    A method for manufacturing a cleaning brush for molds.
  2. 　前記短毛領域と前記長毛領域とは、前記シャフト部材を中心とする周方向に交互に並んで配置されている、
    請求項１に記載の成形型用クリーニングブラシの製造方法。     The short hair regions and the long hair regions are arranged alternately in a circumferential direction around the shaft member,
    A method for manufacturing a mold cleaning brush according to claim 1.
  3. 　前記短毛領域が設けられている前記シャフト部材を中心とする周方向の角度範囲は、６０°以上９０°以下であり、
    　前記長毛領域が設けられている前記シャフト部材を中心とする周方向の角度範囲は、６０°以上９０°以下である、
    請求項１または２に記載の成形型用クリーニングブラシの製造方法。     The angular range in the circumferential direction around the shaft member in which the short hair region is provided is 60° or more and 90° or less,
    The angular range in the circumferential direction around the shaft member in which the long hair region is provided is 60° or more and 90° or less,
    A method for manufacturing a mold cleaning brush according to claim 1 or 2.
  4. 　前記第１の長さと前記第２の長さとの差は、１．０ｍｍ以上である、
    請求項１から３のいずれか１項に記載の成形型用クリーニングブラシの製造方法。     The difference between the first length and the second length is 1.0 mm or more,
    A method for manufacturing a mold cleaning brush according to any one of claims 1 to 3.
  5. 　成形型を備えた樹脂成形装置の製造方法であって、
    　請求項１から４のいずれか１項に記載の成形型用クリーニングブラシの製造方法によって成形型用クリーニングブラシを作製する工程を備え、
    　前記成形型用クリーニングブラシの前記短毛領域は、前記成形型の凸部に接触可能なように配置され、
    　前記成形型用クリーニングブラシの前記長毛領域は、前記成形型の凹部に接触するように配置される、
    樹脂成形装置の製造方法。     A method for manufacturing a resin molding device equipped with a mold, the method comprising:
    A step of manufacturing a cleaning brush for a mold by the method for manufacturing a cleaning brush for a mold according to any one of claims 1 to 4,
    The short hair region of the mold cleaning brush is arranged so as to be able to contact the convex portion of the mold,
    The long hair region of the mold cleaning brush is arranged to contact the recess of the mold.
    Manufacturing method for resin molding equipment.
  6. 　前記成形型の凹部は、前記成形型のキャビティの底面、および、前記キャビティに接続する樹脂通路の底面のうちの少なくとも１つを含む、
    請求項５に記載の樹脂成形装置の製造方法。     The recess of the mold includes at least one of a bottom surface of a cavity of the mold and a bottom surface of a resin passage connected to the cavity.
    A method for manufacturing a resin molding device according to claim 5.
  7. 　前記成形型の凸部は、前記成形型のパーティング面、および、前記成形型のキャビティに設けられたダム部の表面うちの少なくとも１つを含む、
    請求項５または６に記載の樹脂成形装置の製造方法。     The convex portion of the mold includes at least one of a parting surface of the mold and a surface of a dam portion provided in a cavity of the mold.
    A method for manufacturing a resin molding device according to claim 5 or 6.
PCT/JP2023/015777 2022-06-27 2023-04-20 Method for producing cleaning brush for mold and method for producing resin molding device WO2024004353A1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07148746A (en) * 1993-11-30 1995-06-13 Apic Yamada Kk Cleaning device of mold
JP2010000154A (en) * 2008-06-19 2010-01-07 Kowa Co Ltd Brushroll and washing device
US20140001819A1 (en) * 2012-06-20 2014-01-02 Geka Gmbh Method for manufacturing a one-piece, multi-component injection molded brush

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07148746A (en) * 1993-11-30 1995-06-13 Apic Yamada Kk Cleaning device of mold
JP2010000154A (en) * 2008-06-19 2010-01-07 Kowa Co Ltd Brushroll and washing device
US20140001819A1 (en) * 2012-06-20 2014-01-02 Geka Gmbh Method for manufacturing a one-piece, multi-component injection molded brush

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