JPH0139546Y2 - - Google Patents
Info
- Publication number
- JPH0139546Y2 JPH0139546Y2 JP1984021299U JP2129984U JPH0139546Y2 JP H0139546 Y2 JPH0139546 Y2 JP H0139546Y2 JP 1984021299 U JP1984021299 U JP 1984021299U JP 2129984 U JP2129984 U JP 2129984U JP H0139546 Y2 JPH0139546 Y2 JP H0139546Y2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- lubricant
- movable
- slide
- core
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 238000001746 injection moulding Methods 0.000 claims description 5
- 238000000465 moulding Methods 0.000 description 26
- 239000000314 lubricant Substances 0.000 description 19
- 230000006866 deterioration Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 230000001050 lubricating effect Effects 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 229920003002 synthetic resin Polymers 0.000 description 3
- 239000000057 synthetic resin Substances 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 1
- 229910052982 molybdenum disulfide Inorganic materials 0.000 description 1
- 229920003217 poly(methylsilsesquioxane) Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Landscapes
- Bearings For Parts Moving Linearly (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Description
【考案の詳細な説明】
（考案の技術分野）
本考案は、コア型および離型手段としてのスラ
イド型を備えた射出成形金型に関する。[Detailed Description of the Invention] (Technical Field of the Invention) The present invention relates to an injection molding mold equipped with a core mold and a slide mold as a mold release means.
（従来技術）
合成樹脂製の管体の端部開口を閉塞するキヤツ
プを射出成形する金型は、固定型と、移動型と、
移動型に間隙を介して挿入されたコア型と、コア
型の外周に配置された筒状のスライド型とを備え
ている。そして、型開き後にスライド型を前進さ
せることにより、成形品をコア型から離型させる
ようになつている。(Prior art) There are two types of molds for injection molding a cap that closes the end opening of a synthetic resin tube: a fixed mold, a movable mold,
It includes a core mold inserted into the movable mold through a gap, and a cylindrical slide mold disposed around the outer periphery of the core mold. The molded product is released from the core mold by moving the slide mold forward after opening the mold.
ところで、上記金型では、スライド型が前進、
後退を成形毎に繰り返すため、移動型の成形面が
磨り減らされてしまい、成形品の寸法精度が低下
する原因となつた。また、スライド型が移動型の
成形面に強く圧接する、所謂かじりを生じて、ス
ライド型の前進が不可能となり、成形品を離型で
きないことがあつた。 By the way, in the above mold, the slide mold moves forward,
Because the retreat is repeated every time molding is performed, the molding surface of the movable mold is worn away, causing a decrease in the dimensional accuracy of the molded product. In addition, the slide mold comes into strong pressure contact with the molding surface of the movable mold, resulting in so-called galling, which makes it impossible for the slide mold to move forward, making it impossible to release the molded product.
そこで、移動型とスライド型との隙間に油を塗
布し、この油の潤滑作用により上記の不都合を解
消することが考えられるが、油を均等に塗布する
ことが困難で確実な潤滑作用が行なえず、また、
油を必要以上に塗布してしまい、成形品にまで油
が付いて外観不良となるおそれがあつた。 Therefore, it is possible to apply oil to the gap between the movable mold and the slide mold and use the lubricating effect of this oil to solve the above problem, but it is difficult to apply the oil evenly and a reliable lubrication effect cannot be achieved. Also,
If more oil was applied than necessary, there was a risk that the oil would get onto the molded product, resulting in poor appearance.
（考案の目的）
本考案は上記事情に基づきなされたもので、そ
の目的は、潤滑材の作用により移動型の成形面の
摩耗やスライド型のかじりを防止でき、しかも潤
滑材を均等に供給でき潤滑作用を確実に行なえる
とともに、潤滑材を必要以上に供給することなく
成形品への潤滑材の付着による外観の悪化を防止
できる射出成形金型を提供することにある。(Purpose of the invention) The invention was made based on the above circumstances, and its purpose is to prevent wear of the molding surface of the movable mold and galling of the slide mold by the action of the lubricant, and to supply the lubricant evenly. It is an object of the present invention to provide an injection molding die that can reliably perform a lubricating action and prevent deterioration of the appearance due to adhesion of the lubricant to a molded product without supplying more lubricant than necessary.
（考案の要旨）
本考案の要旨は、固定型と、移動型と、移動型
に間隙を介して挿入されたコア型と、コア型の外
周に配置された筒状のスライド型とを備え、型開
き後にスライド型を前進させることにより、成形
品をコア型から離型させるようにした射出成形金
型において、移動型には固定型と反対側に凹部が
形成され、この凹部に、硬化処理されたブツシユ
が嵌め込まれ、スライド型と接触するブツシユの
接触面に環状の溝が形成され、この溝に潤滑材含
浸体が収納されている射出成形金型に存する。(Summary of the invention) The gist of the invention is to include a fixed mold, a movable mold, a core mold inserted into the movable mold through a gap, and a cylindrical slide mold disposed on the outer periphery of the core mold, In an injection mold in which the molded product is released from the core mold by moving the slide mold forward after opening the mold, a recess is formed in the movable mold on the opposite side of the fixed mold, and the hardening treatment is applied to the recess in the movable mold. An annular groove is formed on the contact surface of the bush that contacts the slide mold, and a lubricant-impregnated body is housed in this groove.
（考案の構成）
以下、本考案の一実施例を図面を参照して説明
する。図面は合成樹脂管体の端部開口を閉塞する
ためのキヤツプを成形する射出成形金型を示す。
図中１０は成形面１０ａを有する固定型であり、
この固定型１０には、射出機のノズルに連通する
とともに成形面１０ａに開口する湯道（図示せ
ず）が形成されている。固定型１０は固定台１１
に固定されている。(Structure of the invention) An embodiment of the invention will be described below with reference to the drawings. The drawing shows an injection mold for forming a cap for closing the end opening of a synthetic resin tube.
In the figure, 10 is a fixed mold having a molding surface 10a,
This fixed mold 10 is formed with a runner (not shown) that communicates with the nozzle of the injection machine and opens into the molding surface 10a. Fixed type 10 is fixed base 11
is fixed.
図中２０は移動型であり、この移動型２０は、
移動型本体２１と、ブツシユ２２により構成され
ている。すなわち、移動型本体２１の上記固定型
１０とは反対側には凹部２３が形成されており、
この凹部２３にブツシユ２２が嵌め込まれて収納
されている。移動型本体２１には、ブツシユ２２
から固定型１０の方向へ延びる円筒面形状の成形
面２１ａが形成されている。 In the figure, 20 is a mobile type, and this mobile type 20 is
It is composed of a movable main body 21 and a bush 22. That is, a recess 23 is formed on the opposite side of the movable mold main body 21 from the fixed mold 10,
A bushing 22 is fitted and housed in this recess 23. The movable main body 21 has a bush 22.
A cylindrical molding surface 21a extending from the molding surface toward the fixed mold 10 is formed.
ブツシユ２２は、焼き入れにより硬化処理され
ており、円筒面形状の接触面２２ａを有してい
る。接触面２２ａには、環状の溝２４が形成され
ており、この溝２４には環状の潤滑材含浸体２５
が収納されている。潤滑材含浸体２５は、ガラ
ス、合成樹脂繊維等の不織繊維体に、潤滑材とし
て、油や、二硫化モリブデンをグリースで練つた
もの等を含浸させることにより構成されている。
なお、溝２４の形成位置は、ブツシユ２２の固定
型１０側の端から約10mm以下とするのが好まし
い。また、溝２４の幅および深さは４〜10mm程度
とするのが好ましい。 The bush 22 is hardened by hardening and has a cylindrical contact surface 22a. An annular groove 24 is formed in the contact surface 22a, and an annular lubricant-impregnated body 25 is formed in this groove 24.
is stored. The lubricant-impregnated body 25 is constructed by impregnating a nonwoven fiber body such as glass or synthetic resin fiber with a lubricant such as oil or molybdenum disulfide kneaded with grease.
Note that the groove 24 is preferably formed at a position approximately 10 mm or less from the end of the bush 22 on the fixed mold 10 side. Further, it is preferable that the width and depth of the groove 24 be approximately 4 to 10 mm.
移動型２０は、多数のブロツクからなる移動台
２６によつて支持されている。 The movable mold 20 is supported by a movable table 26 consisting of a number of blocks.
移動型２０には、先端部に成形面を有するコア
型３０が間隙を介して挿入されている。コア型３
０の基端部は、移動台２６に固定されている。コ
ア型３０内には冷却水路３１が形成されている。 A core mold 30 having a molding surface at its tip is inserted into the movable mold 20 with a gap therebetween. Core type 3
0 is fixed to the movable table 26. A cooling water channel 31 is formed within the core mold 30 .
コア型３０の外周には、筒状のスライド型４０
が軸方向にスライド可能に配置されている。スラ
イド型４０の先端面は成形面４０ａをなしてお
り、また基端部は、突出し板４１に固定されてい
る。この突出し板４１により、軸方向に往復移動
されるようになつている。なお、スライド型４０
と移動型２０との間、およびスライド型４０とコ
ア型３０との間には、0.05から0.10mm程度の隙間
が設けられており、樹脂は入り込まないがスライ
ドしやすい状態になつている。 A cylindrical slide mold 40 is provided on the outer periphery of the core mold 30.
is arranged so as to be slidable in the axial direction. The distal end surface of the slide mold 40 forms a molding surface 40a, and the proximal end portion is fixed to a protrusion plate 41. This protruding plate 41 allows it to be reciprocated in the axial direction. In addition, slide type 40
A gap of about 0.05 to 0.10 mm is provided between the movable mold 20 and the slide mold 40 and the core mold 30, so that the resin does not enter but can easily slide.
上記構成において、図示の型閉め状態では、固
定型１０、移動型本体２１、コア型３０、スライ
ド型４０の各成形面１０ａ，２１ａ，３０ａ，４
０ａにより、キヤツプ形状の成形用キヤビデイ５
０が形成される。この成形用キヤビデイ５０に射
出機から溶融樹脂が射出充填され、冷却固化され
る。この結果成形品６０が得られる。 In the above configuration, in the illustrated mold closed state, each molding surface 10a, 21a, 30a, 4 of the fixed mold 10, movable mold main body 21, core mold 30, and slide mold 40 is
0a, the cap-shaped molding cavity 5
0 is formed. Molten resin is injected and filled into this molding cavity 50 from an injection machine, and is cooled and solidified. As a result, a molded article 60 is obtained.
冷却固化の後、移動台２６を固定台１１から離
す方向に移動させることにより、型開きがなされ
る。この際、移動型２０とコア型３０が同時に後
退し、成形品６０がコア型３０に付いたまま移動
して固定型１０の成形面１０ａから離れる。 After cooling and solidification, the mold is opened by moving the movable table 26 in a direction away from the fixed table 11. At this time, the movable mold 20 and the core mold 30 move backward at the same time, and the molded product 60 moves while attached to the core mold 30 and leaves the molding surface 10a of the fixed mold 10.
次に、突出し板４１を駆動させてスライド型４
０を固定型１０方向へ前進させ、スライド型４０
の先端で成形品６０の端面を押すことにより、成
形品６０をコア型３０から離型させる。 Next, the protrusion plate 41 is driven and the slide mold 4
0 in the direction of the fixed mold 10, and the sliding mold 40
The molded product 60 is released from the core mold 30 by pressing the end face of the molded product 60 with the tip of the molded product 60 .
スライド型４０は成形１サイクル毎に１往復す
るが、この往復動作の際に、外周面が潤滑材含浸
体２５に接触して潤滑材の供給を受ける。この潤
滑材により、スライド型４０の外周面、ブツシユ
２２の接触面２２ａ、移動型本体２１の成形面２
１ａの摩耗を防止できる。特に、成形面２１ａの
摩耗を防止することにより、成形品６０の寸法精
度の低下を防止できる。また、上記潤滑材の作用
により、スライド型４０と成形面２１ａとの間の
かじりを防止でき、離型動作を円滑に行なうこと
ができる。 The slide mold 40 reciprocates once per molding cycle, and during this reciprocating movement, the outer peripheral surface contacts the lubricant-impregnated body 25 and receives the supply of lubricant. With this lubricant, the outer peripheral surface of the slide mold 40, the contact surface 22a of the bush 22, and the molding surface 2 of the movable mold main body 21
Abrasion of 1a can be prevented. In particular, by preventing wear of the molding surface 21a, it is possible to prevent the dimensional accuracy of the molded product 60 from decreasing. In addition, the action of the lubricant can prevent galling between the slide mold 40 and the molding surface 21a, and the mold release operation can be performed smoothly.
さらに、潤滑材は不織繊維体によつて含浸され
ており、非常に薄い塗膜となつてスライド型の外
周面に供給されるため、必要以上に供給されるこ
とがなく、潤滑材が成形品６０に付着することに
よる成形品６０の外観の悪化を防止できる。ま
た、潤滑材はほぼ均等に供給されるので、確実に
潤滑作用をなすことができる。 In addition, the lubricant is impregnated with the non-woven fibers and is supplied to the outer surface of the slide mold as a very thin coating, so there is no need to supply more than necessary, and the lubricant is formed into the mold. Deterioration of the appearance of the molded product 60 due to adhesion to the product 60 can be prevented. Furthermore, since the lubricant is supplied almost evenly, the lubricating effect can be reliably achieved.
ブツシユ２２は、硬化処理されているので、摩
耗をさらに少なくすることができる。またブツシ
ユ２２は移動型本体２１と別体に形成され凹部２
３にはめ込まれているだけであるので、移動台２
６および移動型２０の解体により、ブツシユ２２
の交換が可能であり、またこの解体の際、潤滑材
含浸体２５の交換や、潤滑材の補給も行なうこと
ができる。 Since the bushing 22 has been hardened, wear can be further reduced. Further, the bush 22 is formed separately from the movable main body 21, and the recess 2
Since it is only inserted into the moving platform 2.
6 and the dismantling of the movable type 20, the bush 22
It is also possible to replace the lubricant-impregnated body 25 and replenish the lubricant during this disassembly.
なお、本考案は上記実施例に制約されず、種々
の態様が可能である。たとえば、キヤツプとは異
なる形状の成形品を成形する金型にも適用するこ
とができる。 Note that the present invention is not limited to the above-mentioned embodiments, and various embodiments are possible. For example, it can be applied to a mold for molding a molded product having a shape different from that of a cap.
（考案の効果）
以上のとおり、本考案の射出成形金型において
は、ブツシユが、固定型の反対側に形成した移動
型の凹部に嵌め込まれているので、移動型の解体
により、ブツシユの交換や潤滑材含浸体の交換が
可能であり、また同時に潤滑材含浸体への潤滑材
の補給を行うことができる。また、ブツシユは焼
き入れにより硬化処理されているので、耐摩耗性
に優れており、交換までの時間が大幅に延び、保
守管理のための費用が少なくて済む。(Effects of the invention) As described above, in the injection mold of the invention, the bushings are fitted into the recesses of the movable mold formed on the opposite side of the fixed mold, so the bushings can be replaced by disassembling the movable mold. It is possible to replace the lubricant-impregnated body, and at the same time, the lubricant can be supplied to the lubricant-impregnated body. In addition, since the bushing is hardened by quenching, it has excellent wear resistance, significantly prolongs the time required for replacement, and reduces maintenance costs.
更に、スライド型と接触するブツシユの接触面
に形成された環状の溝に、潤滑材含浸体が収納さ
れているので、潤滑材は非常に薄い塗膜となつて
スライド型の外周面に供給されることになり、こ
の潤滑材の作用によつて移動型の成形面の摩耗を
防止して、成形品の寸法精度の低下を防止できる
と共に、スライド型のかじりを防止して円滑に成
形品の離型を行うことができる。しかも、潤滑材
を均等に供給でき潤滑作用を確実に行え、潤滑材
を必要以上に供給することなく、成形品への潤滑
材の付着による外観の悪化を防止できる。 Furthermore, since the lubricant-impregnated body is housed in the annular groove formed on the contact surface of the bush that comes into contact with the slide mold, the lubricant is supplied to the outer peripheral surface of the slide mold in the form of a very thin film. Therefore, the action of this lubricant prevents wear on the molding surface of the movable mold, thereby preventing a decrease in the dimensional accuracy of the molded product, and also prevents galling of the slide mold and ensuring smooth molding. Mold release can be performed. In addition, the lubricant can be supplied evenly and the lubrication effect can be reliably performed, and without supplying more lubricant than necessary, it is possible to prevent deterioration in appearance due to adhesion of the lubricant to the molded product.
図面は本考案の一実施例をなす射出成形金型の
断面図である。
１０……固定型、１０ａ……成形面、２０……
移動型、２１ａ……成形面、２２ａ……接触面、
２４……溝、２５……潤滑材含浸体、３０……コ
ア型、３０ａ……成形面、４０……スライド型、
４０ａ……成形面、５０……成形用キヤビデイ、
６０……成形品。
The drawing is a sectional view of an injection molding die that is an embodiment of the present invention. 10... Fixed mold, 10a... Molding surface, 20...
Movable mold, 21a...molding surface, 22a...contact surface,
24... Groove, 25... Lubricant impregnated body, 30... Core mold, 30a... Molding surface, 40... Slide mold,
40a...molding surface, 50...molding cavity,
60... Molded product.
Claims (1)
入されたコア型と、コア型の外周に配置された筒
状のスライド型とを備え、型開き後にスライド型
を前進させることにより、成形品をコア型から離
型させるようにした射出成形金型において、移動
型には固定型と反対側に凹部が形成され、この凹
部に、硬化処理されたブツシユが嵌め込まれ、ス
ライド型と接触するブツシユの接触面に環状の溝
が形成され、この溝に潤滑材含浸体が収納されて
いることを特徴とする射出成形金型。 It is equipped with a fixed mold, a movable mold, a core mold inserted into the movable mold through a gap, and a cylindrical slide mold placed on the outer periphery of the core mold, and by moving the slide mold forward after opening the mold, In an injection mold that allows the molded product to be released from the core mold, the movable mold has a recess formed on the opposite side of the fixed mold, and a hardened bushing is fitted into this recess and comes into contact with the sliding mold. An injection molding mold characterized in that an annular groove is formed on the contact surface of a bushing, and a lubricant-impregnated body is housed in the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2129984U JPS60134615U (en) | 1984-02-16 | 1984-02-16 | injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2129984U JPS60134615U (en) | 1984-02-16 | 1984-02-16 | injection mold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60134615U JPS60134615U (en) | 1985-09-07 |
| JPH0139546Y2 true JPH0139546Y2 (en) | 1989-11-28 |
Family
ID=30512566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2129984U Granted JPS60134615U (en) | 1984-02-16 | 1984-02-16 | injection mold |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60134615U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100726327B1 (en) | 2006-01-04 | 2007-06-11 | 주식회사 대부금형 | Apparatus for mold |
| KR101090130B1 (en) * | 2008-10-24 | 2011-12-07 | 주식회사 대부 | Mold apparatus |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0581948B2 (en) * | 1984-07-31 | 1993-11-16 | Fujitsu Ltd |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0581948U (en) * | 1992-04-01 | 1993-11-05 | 旭光学工業株式会社 | Lead wire clip |
-
1984
- 1984-02-16 JP JP2129984U patent/JPS60134615U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0581948B2 (en) * | 1984-07-31 | 1993-11-16 | Fujitsu Ltd |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60134615U (en) | 1985-09-07 |
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