JPH0618759B2 - Molding method for tableware handle made of synthetic resin - Google Patents
Molding method for tableware handle made of synthetic resinInfo
- Publication number
- JPH0618759B2 JPH0618759B2 JP62073795A JP7379587A JPH0618759B2 JP H0618759 B2 JPH0618759 B2 JP H0618759B2 JP 62073795 A JP62073795 A JP 62073795A JP 7379587 A JP7379587 A JP 7379587A JP H0618759 B2 JPH0618759 B2 JP H0618759B2
- Authority
- JP
- Japan
- Prior art keywords
- handle
- tableware
- protrusion
- synthetic resin
- hanging plate
- 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 - Fee Related
Links
- 238000000034 method Methods 0.000 title claims description 8
- 229920003002 synthetic resin Polymers 0.000 title claims description 8
- 239000000057 synthetic resin Substances 0.000 title claims description 8
- 238000000465 moulding Methods 0.000 title description 2
- 238000003825 pressing Methods 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
-
- 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
- B29C45/40—Removing or ejecting moulded articles
-
- 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
- B29C45/40—Removing or ejecting moulded articles
- B29C2045/4063—Removing or ejecting moulded articles preventing damage to articles caused by the ejector
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Description
【発明の詳細な説明】 発明の目的 （産業上の利用分野） この発明は合成樹脂材よりなる食器の柄の成形方法に関
するものである。DETAILED DESCRIPTION OF THE INVENTION Object of the Invention (Field of Industrial Application) The present invention relates to a method for forming a handle of tableware made of a synthetic resin material.
（従来の技術） 射出成形法等において食器の柄を可動型から離型させる
には、突き出しピンにて可動型内の食器の柄を押圧して
行われる。すなわち、第４図（ａ）に示すように、食器
の柄Ｓの端部に舌片状の突出部３１を形成し、同突出部
３１に設けた突起３２を突き出しピン３３にて押圧する
ことにより食器の柄Ｓの離型が行われるが、離型作業中
で突出部３１が二点鎖線で示すように押圧方向に湾曲し
て、離型作業が円滑に行われないことがある。(Prior Art) In order to release the handle of the tableware from the movable mold in the injection molding method or the like, the handle of the tableware in the movable mold is pressed by the ejection pin. That is, as shown in FIG. 4 (a), a tongue-shaped protrusion 31 is formed at the end of the handle S of the tableware, and the protrusion 32 provided on the protrusion 31 is pressed by the protrusion pin 33. Thus, the handle S of the tableware is released from the mold, but the protrusion 31 may be curved in the pressing direction as shown by the chain double-dashed line during the release work, and the release work may not be performed smoothly.
また、食器の柄Ｓの表面を突き出しピン３３にて押圧し
て、食器の柄Ｓを可動型から離型さる方法も広汎に行わ
れるが、第４図（ｂ）に示すように食器の柄Ｓの表面に
突き出しピン３３の跡３４が付き、外観を損なう原因と
なる。Further, a method of pressing the surface of the handle S of the tableware with the protrusion pin 33 to release the handle S of the tableware from the movable mold is widely performed, but as shown in FIG. A mark 34 of the protruding pin 33 is attached to the surface of S, which causes a deterioration in the appearance.
（発明が解決しようとする問題点） この発明は上記したように、離型作業に支障を来した
り、食器の柄の外観が損なわれるという問題点を解決し
ようとするものであり、その目的は食器の柄の離型が円
滑に行われるとともに、優れた外観を維持することがで
きる合成樹脂材よりなる食器の柄の成形方法を提供する
ことにある。(Problems to be Solved by the Invention) As described above, the present invention is intended to solve the problems that the release work is hindered and the appearance of the handle of the tableware is impaired. Another object of the present invention is to provide a method for molding a tableware handle made of a synthetic resin material, which enables smooth release of the tableware handle and maintains an excellent appearance.
発明の構成 （問題点を解決するための手段） この発明は上記した問題点を解決するために、金型内に
おいて、合成樹脂材よりなる食器の柄Ｗの後端部に成形
した貫通孔３周壁に両端が連続するフィルム状の掛装板
４を一体的に形成し、同掛装板４の中央部に上方へと突
出する押圧突起５を設ける工程と、同押圧突起５を付き
出しピン１０にて押圧して食器の柄Ｗを金型から離型さ
せる工程と、同離型工程の後に前記掛装板４を食器の柄
Ｗから切除する工程とからなるものである。Structure of the Invention (Means for Solving the Problems) In order to solve the above problems, the present invention has a through hole 3 formed in the rear end of a handle W of tableware made of a synthetic resin material in a mold. A step of integrally forming a film-shaped hanging plate 4 having continuous both ends on the peripheral wall, and providing a pressing protrusion 5 projecting upward in the central portion of the hanging plate 4, and a step of attaching the pressing protrusion 5 It comprises a step of pressing the tableware W to release the tableware handle W from the mold, and a step of cutting the hanging plate 4 from the tableware handle W after the releasing step.
（作用） この発明は上記した手段を採用したことにより、掛装板
の押圧突起を突き出しピンにて押圧して食器の柄を離型
させた後、掛装板は食器の柄から切除される。(Operation) According to the present invention, by adopting the above-mentioned means, after the press projection of the hanging plate is pressed by the protrusion pin to release the handle of the tableware, the hanging plate is cut off from the handle of the tableware. .
（実施例） 以下、この発明の一実施例を第１〜第３図に従って詳述
する。(Embodiment) An embodiment of the present invention will be described in detail below with reference to FIGS.
第１図はスプーン形成過程の最終段階における食器の柄
Ｗを示すものであり、スプーン本体１の後端には合成樹
脂材よりなる把手２が取付けられ、同把手２の後部には
楕円形状の貫通孔３が透設されている。この貫通孔３内
には、内周壁に両端が連結されたフィルム状の掛装板４
が一体的に設けられ、その上面には小円柱状をなす押圧
突起５が形成されている。最終段階の加工において、こ
の押圧突起５は掛装板４と共にペンチ等で切除されスプ
ーンが完成される。FIG. 1 shows a handle W of tableware at the final stage of the spoon forming process. A handle 2 made of a synthetic resin material is attached to the rear end of the spoon body 1, and an elliptical shape is provided at the rear of the handle 2. The through hole 3 is transparently provided. Inside the through hole 3, a film-like hanging plate 4 having both ends connected to the inner peripheral wall 4
Are integrally provided, and a small columnar pressing protrusion 5 is formed on the upper surface thereof. In the final stage of processing, the pressing protrusions 5 are cut with pliers or the like together with the hanging plate 4 to complete a spoon.
さて、上記した把手２の製造方法を第２図に従って以下
に説明する。金型の可動型６と固定型７のキャビティ８
は柄２と対応する形状をなし、可動型６内において掛装
板４に対応する連通溝Ｇの上部中央には前記押圧突起５
と対応する透孔９が形成されている。同透孔９の下部内
周面には係止凹条９ａが設けられ、さらに、透孔９内に
は上方において図示しない往復動機構にて上下動可能に
支持される突き出しピン１０が気密的に挿入されてい
る。Now, the manufacturing method of the handle 2 will be described below with reference to FIG. Cavity 8 of movable mold 6 and fixed mold 7 of the mold
Has a shape corresponding to the handle 2, and the pressing protrusion 5 is provided at the center of the upper portion of the communication groove G corresponding to the hanging plate 4 in the movable die 6.
A through hole 9 corresponding to is formed. A locking recess 9a is provided on the inner peripheral surface of the lower part of the through hole 9, and a protruding pin 10 is supported in the through hole 9 so as to be vertically movable by a reciprocating mechanism (not shown). Has been inserted into.
前記キャビティ８内には外部の噴射ノズル（図示しな
い）より樹脂注入路９ｂを経て射出された溶融樹脂が固
化して成形品Ｗが形成されている。そして、可動型６と
突き出しピン１０とを上動させると、押圧突起５が可動
型６の係止凹条９ａにて係止されるため、食器の柄Ｗは
固定型７から離型して可動型６と共に上動する。前記可
動型６を受け具の上方等、所望の位置に移動させた後、
突き出しピン１０を下動させて押圧突起５を押圧する
と、食器の柄Ｗは可動型６から離型する。この後、前述
したように食器の柄Ｗから掛装板４が切除される。A molded product W is formed in the cavity 8 by solidifying the molten resin injected from an external injection nozzle (not shown) through the resin injection path 9b. Then, when the movable die 6 and the ejecting pin 10 are moved upward, the pressing projection 5 is locked by the locking recess 9a of the movable die 6, so that the handle W of the tableware is released from the fixed die 7. It moves up together with the movable mold 6. After moving the movable die 6 to a desired position such as above the receiving tool,
When the protrusion pin 10 is moved downward to press the pressing protrusion 5, the handle W of the tableware is released from the movable mold 6. Thereafter, the hanging plate 4 is cut off from the handle W of the tableware as described above.
上記した工程において、食器の柄Ｗはその押圧突起５が
突き出しピン１０にて押圧されることにより可動型６か
ら離型する。この時、押圧突起５には突き出しピン１０
による押し跡が残るが、最終加工過程にて切除されるた
め、製品からは押し跡が除去される。従って、スプーン
の外観が損なわれることはない。In the process described above, the handle W of the tableware is released from the movable mold 6 by the pressing protrusion 5 of the handle W being pressed by the protrusion pin 10. At this time, the protrusion pin 10 is attached to the pressing protrusion 5.
Although the imprint remains due to, the imprint is removed from the product because it is cut off in the final processing step. Therefore, the appearance of the spoon is not impaired.
また、掛装板４の両端は柄２の貫通孔３内周面に連通す
る構成であるため、突き出しピン１０が押圧突起５に加
える力を受けて湾曲することはない。よって、離型作業
は円滑に行われ得る。Further, since both ends of the hanging plate 4 are configured to communicate with the inner peripheral surface of the through hole 3 of the handle 2, the protrusion pin 10 does not bend under the force applied to the pressing protrusion 5. Therefore, the release work can be smoothly performed.
なお、この発明は上記した実施例に拘束されるものでは
なく、例えば、 柄１の貫通孔３は第３図（ａ）〜（ｄ）にそれぞれ示
すように、菱型、円形、両端を切除した楕円形、方形状
に形成したり、 スプーン以外の調理用具、飲食用具の柄に応用する 等、本発明の趣旨から逸脱しない限りにおいて任意の変
更は無論可能である。The present invention is not limited to the above-described embodiment. For example, as shown in FIGS. 3 (a) to 3 (d), the through hole 3 of the handle 1 is diamond-shaped, circular, and both ends are cut off. As long as it does not deviate from the gist of the present invention, it may be formed into an elliptical shape or a rectangular shape, or may be applied to a handle of a cooking tool other than a spoon or a handle of eating and drinking tools.
発明の効果 以上詳述したように、この発明においては、金型内にお
いて、合成樹脂材よりなる食器の柄の貫通孔周壁に両端
が連続するフィルム条の掛装板を一体的に形成し、同掛
装板の中央部に上方へと突出する押圧突起を設ける工程
と、同押圧突起を突き出しピンにて押圧して食器の柄を
金型から離型させる工程と、同離型工程の後に前記掛装
板を食器の柄から切除する工程とからなることにより、
食器の柄の離型が円滑に行われるとともに、優れた外観
を維持することができるという優れた効果を発揮する。Effects of the Invention As described in detail above, in the present invention, in the mold, the hanging plate of the film strip having both continuous ends is integrally formed on the peripheral wall of the through hole of the handle of the tableware made of the synthetic resin material, After the step of providing a pressing protrusion projecting upward in the center of the hanging plate, pressing the pressing protrusion with a protrusion pin to release the handle of the tableware from the mold, and after the releasing step. By comprising the step of cutting the hanging plate from the handle of the tableware,
It has the excellent effect that the pattern of the tableware can be smoothly released and the excellent appearance can be maintained.
第１図は本発明によりスプーンの柄を形成する一過程を
示す斜視図、第２図は金型を示す断面図、第３図（ａ）
〜（ｄ）はそれぞれ柄の貫通孔の別例を示す平面図、第
４図（ａ）（ｂ）はそれぞれ従来例を示す一部破断斜視
図である。 図において、３は貫通孔、４は掛装板、５は押圧突起、
１０は突き出しピン、Ｗは食器の柄である。1 is a perspective view showing a process of forming a handle of a spoon according to the present invention, FIG. 2 is a sectional view showing a mold, and FIG. 3 (a).
(D) is a plan view showing another example of the through hole of the handle, and FIGS. 4 (a) and (b) are partially cutaway perspective views showing a conventional example. In the figure, 3 is a through hole, 4 is a mounting plate, 5 is a pressing protrusion,
10 is a protruding pin, and W is a tableware handle.
Claims (1)
の柄（Ｗ）の後端部に成形した貫通孔（３）周壁に両端
が連続するフィルム状の掛装板（４）を一体的に形成
し、同掛装板（４）の中央部に上方へと突出する押圧突
起（５）を設ける工程と、同押圧突起（５）を付突き出
しピン（１０）にて押圧して食器の柄（Ｗ）を金型から
離型させる工程と、同離型工程の後に前記掛装板（４）
を食器の柄（Ｗ）から切除する工程とからなる合成樹脂
材よりなる食器の柄の成形方法。1. A film-like hanging plate (4) continuous at both ends in a peripheral wall of a through hole (3) formed in the rear end of a tableware handle (W) made of a synthetic resin material in a mold. And a pressing protrusion (5) protruding upward in the central portion of the hanging plate (4), and pressing the protruding protrusion (5) with a protrusion pin (10) Of the handle (W) from the mold, and the hanging plate (4) after the mold releasing step
A method of forming a tableware handle made of a synthetic resin material, which comprises the step of cutting the tableware from the tableware handle (W).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62073795A JPH0618759B2 (en) | 1987-03-26 | 1987-03-26 | Molding method for tableware handle made of synthetic resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62073795A JPH0618759B2 (en) | 1987-03-26 | 1987-03-26 | Molding method for tableware handle made of synthetic resin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63237922A JPS63237922A (en) | 1988-10-04 |
| JPH0618759B2 true JPH0618759B2 (en) | 1994-03-16 |
Family
ID=13528473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62073795A Expired - Fee Related JPH0618759B2 (en) | 1987-03-26 | 1987-03-26 | Molding method for tableware handle made of synthetic resin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0618759B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2836648B1 (en) * | 2002-03-01 | 2005-08-26 | Bost Garnache Ind | METHOD FOR MANUFACTURING A TOOL HANDLE, CORRESPONDING INJECTION MOLD, AND TOOL OBTAINED THEREBY |
| JP5153238B2 (en) * | 2007-07-09 | 2013-02-27 | 岐阜プラスチック工業株式会社 | Structural member for water storage tank |
| ATE507953T1 (en) * | 2008-02-13 | 2011-05-15 | Gm Global Tech Operations Inc | SEAL RING |
| JP6854503B2 (en) * | 2016-09-08 | 2021-04-07 | 国際化工株式会社 | How to make cutlery products |
| CN112517880B (en) * | 2020-12-08 | 2022-04-22 | 东莞市旺佳五金制品有限公司 | Die casting die of precision die casting |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5947651A (en) * | 1982-09-10 | 1984-03-17 | Matsushita Electric Ind Co Ltd | Program controller |
-
1987
- 1987-03-26 JP JP62073795A patent/JPH0618759B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63237922A (en) | 1988-10-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |