JPS5981151A - Construction of metallic mold - Google Patents
Construction of metallic moldInfo
- Publication number
- JPS5981151A JPS5981151A JP19224082A JP19224082A JPS5981151A JP S5981151 A JPS5981151 A JP S5981151A JP 19224082 A JP19224082 A JP 19224082A JP 19224082 A JP19224082 A JP 19224082A JP S5981151 A JPS5981151 A JP S5981151A
- Authority
- JP
- Japan
- Prior art keywords
- nozzle
- molding machine
- heat
- mold
- nozzle tip
- 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.)
- Pending
Links
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
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
-
- 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
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C2045/2761—Seals between nozzle and mould or gate
-
- 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
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C2045/2766—Heat insulation between nozzle and mould
- B29C2045/2767—Heat insulation between nozzle and mould the heat insulation being provided with an axial opening being part of the melt flow channel
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
［技術分野］
この発明はプラスチックス等の射出成形に場合に使用す
る金型の設計の技術分野に属する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention belongs to the technical field of designing molds used for injection molding of plastics and the like.
［背景技術］
この分野における従来例を図面に晶づいて説明する。第
１図は従来の射出成形金型の構造を示ず１１）ｉｎ１ｉ
図である。この図で１は成形機のノズル、２はスプルー
ブツシュ、３はロケイトリング、４は固定側型板、５は
可動側型板である。この図でスプルーブツシュ入部の形
状はノズルの球面半径に合わせなげればならない。した
がって金型と成形機の組合せが決まってしまい融通がき
かない。さらに長期に亙って金型を使用し“ζいる間に
、スプルーブツシュのＡ部が「へたり」、スプルーブツ
シュとノズルの間から樹脂の漏れを起こず欠点があ っ
ノこ。[Background Art] A conventional example in this field will be explained with reference to the drawings. Figure 1 shows the structure of a conventional injection mold.11) in1i
It is a diagram. In this figure, 1 is a nozzle of the molding machine, 2 is a sprue bush, 3 is a locate ring, 4 is a stationary template, and 5 is a movable template. In this figure, the shape of the sprue bushing entrance must be matched to the spherical radius of the nozzle. Therefore, the combination of mold and molding machine is fixed, and there is no flexibility. Furthermore, while using the mold for a long period of time, the A part of the sprue bushing became ``sagging'' and the resin did not leak from between the sprue bushing and the nozzle, resulting in a defect.
［発明の目的］
この発明は以上のような実情に鑑みてなされたもので、
■成形機のノズルの球面半径によらない、■成形機ノズ
ルとの間に樹脂漏れを起こさない、■断熱性を有するこ
と、等の機能を有するスプルーブツシュの構造を提供す
ることを目的とする□扉 ［発明の開示］
□ この発明は、射出成形機の金型においてスプルーブ
ツシュと成形機のノズルの接触面に、可撓性と耐熱性と
断熱性とを有するノズルチップを介在させた。ことを特
徴とする金型の構造を提供するものである。以下実施例
として示した第２図に基づき説明する。[Object of the invention] This invention was made in view of the above-mentioned circumstances.
The purpose is to provide a sprue bushing structure that has functions such as ■ not depending on the spherical radius of the nozzle of the molding machine, ■ no resin leakage between the nozzle of the molding machine, and ■ having heat insulation properties. □Door [Disclosure of the Invention] □ This invention provides a method in which a nozzle tip having flexibility, heat resistance, and heat insulation is interposed on the contact surface between the sprue bush and the nozzle of the injection molding machine in the mold of the injection molding machine. Ta. The present invention provides a mold structure characterized by the following. An explanation will be given below based on FIG. 2 shown as an example.
添付第２図において１〜５までの番号は第１図と同一の
意味を有する。この発明の特徴はノズルチップ６を有す
る点である。In the attached FIG. 2, the numbers 1 to 5 have the same meanings as in FIG. 1. The feature of this invention is that it has a nozzle tip 6.
このノズルチップ６ば本来のノズルの先端とスプルーブ
ツシュとの接触面に介在させているもので、可撓性があ
り、耐熱性があり、断熱性がある材質のもので構成する
。これに該当するものとしては、例えば石綿がある。This nozzle tip 6 is interposed at the contact surface between the tip of the original nozzle and the sprue bushing, and is made of a material that is flexible, heat resistant, and heat insulating. An example of this category is asbestos.
以上のような金型においては、まず金型にノズルチップ
６を取り付けておき、成形機のノズルをノズルチップ６
に接触させて成形する。ノズルチップ６の可撓性とノズ
ルの押圧圧力により、ノズルの球面半径によらず、ノズ
ルチップ６と成形機のノズルを密着させることが出来る
。そのため成形中の樹脂の漏れが改善されるのである。In the mold described above, the nozzle tip 6 is first attached to the mold, and the nozzle of the molding machine is connected to the nozzle tip 6.
Shape by contacting with. Due to the flexibility of the nozzle tip 6 and the pressing force of the nozzle, the nozzle tip 6 and the nozzle of the molding machine can be brought into close contact regardless of the spherical radius of the nozzle. Therefore, leakage of resin during molding is improved.
［発明の効果］
この発明は、射出成形機の金型においてスプルーブツシ
ュと成形機のノズルの接触面に、可撓性と耐熱性と断熱
性とを有するノズルチップを介在させたことを特徴とす
るので以下のような効果が１η られノこ。[Effects of the Invention] The present invention is characterized in that a nozzle tip having flexibility, heat resistance, and heat insulation is interposed at the contact surface between the sprue bush and the nozzle of the injection molding machine in the mold of the injection molding machine. Therefore, the following effect is 1η.
■成形機のノズルの球面半径を考慮する必要がなく、ど
んな成形機でも成形出来る。■There is no need to consider the spherical radius of the nozzle of the molding machine, and any molding machine can be used for molding.
■ノズルチップ６とノズルの間からの成形中の１脂の漏
れが少ない。■Leakage of lubricant from between the nozzle tip 6 and the nozzle during molding is small.
■ノズルチップ６の断熱性により成形機ノズルの熱が金
型に伝わらない。■The heat of the molding machine nozzle is not transmitted to the mold due to the heat insulation properties of the nozzle tip 6.
■ノズルチップ６の取替が容易である。■The nozzle tip 6 can be easily replaced.
第１図は従来の金型の構造を示す断面図、第２図はこの
発明の実施例としての金型の構造を示す断面図である。
■は成形機ノズル
２はスプルーブツシュ
３はロケイトリング
４は固定側板
５は可動側板
６はノズルチップ
特許出願人 松下電工株式会社FIG. 1 is a cross-sectional view showing the structure of a conventional mold, and FIG. 2 is a cross-sectional view showing the structure of a mold as an embodiment of the present invention. ■ is the molding machine nozzle 2 is the sprue bush 3 is the locating ring 4 is the fixed side plate 5 is the movable side plate 6 is the nozzle tip Patent applicant Matsushita Electric Works Co., Ltd.
Claims (1)
形機のノズルの接触面に、可撓性と耐熱性ど断熱性とを
有するノズルチップを介在させたことを特徴とする金型
の構造。(1) Structure of a mold characterized by interposing a nozzle tip having flexibility, heat resistance, and heat insulation properties on the contact surface between the sprue bush and the nozzle of the molding machine in the mold of an injection molding machine. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19224082A JPS5981151A (en) | 1982-10-31 | 1982-10-31 | Construction of metallic mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19224082A JPS5981151A (en) | 1982-10-31 | 1982-10-31 | Construction of metallic mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5981151A true JPS5981151A (en) | 1984-05-10 |
Family
ID=16287982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19224082A Pending JPS5981151A (en) | 1982-10-31 | 1982-10-31 | Construction of metallic mold |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5981151A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01135612A (en) * | 1987-11-24 | 1989-05-29 | Matsushita Electric Works Ltd | Sprue bushing of molding die |
| JPH0390923U (en) * | 1989-12-30 | 1991-09-17 | ||
| WO2003045662A1 (en) * | 2001-11-26 | 2003-06-05 | S.I.P.A Societa' Industrializzazione Progettazione Automazione S.P.A. | Improvement in machines for injection-moulding of plastic material, and corresponding process of implementation |
-
1982
- 1982-10-31 JP JP19224082A patent/JPS5981151A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01135612A (en) * | 1987-11-24 | 1989-05-29 | Matsushita Electric Works Ltd | Sprue bushing of molding die |
| JPH0390923U (en) * | 1989-12-30 | 1991-09-17 | ||
| WO2003045662A1 (en) * | 2001-11-26 | 2003-06-05 | S.I.P.A Societa' Industrializzazione Progettazione Automazione S.P.A. | Improvement in machines for injection-moulding of plastic material, and corresponding process of implementation |
| US7163390B2 (en) | 2001-11-26 | 2007-01-16 | S.I.P.A. Societa' Industrializzazione Progettazione Automazione S.P.A. | Machines and process for injection-moulding plastic material |
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