JP4909616B2 - Mold for blow molding - Google Patents
Mold for blow molding Download PDFInfo
- Publication number
- JP4909616B2 JP4909616B2 JP2006104384A JP2006104384A JP4909616B2 JP 4909616 B2 JP4909616 B2 JP 4909616B2 JP 2006104384 A JP2006104384 A JP 2006104384A JP 2006104384 A JP2006104384 A JP 2006104384A JP 4909616 B2 JP4909616 B2 JP 4909616B2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- rotating arm
- blow molding
- opening
- undercut
- 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
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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/48—Moulds
- B29C49/54—Moulds for undercut articles
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Description
本発明は、アンダーカット部が存在する中空品のブロー成形用金型に関する。 The present invention relates to a hollow mold for blow molding having an undercut portion.
図４は成形金型のキャビティ及び成形品の横断面図である。図４に示すような形状のブロー成形品の場合、通常Ｂ−Ｂをパーティングラインとして型割りするが、Ａ部がアンダーカットとなってしまう。 FIG. 4 is a cross-sectional view of the cavity of the molding die and the molded product. In the case of a blow-molded product having a shape as shown in FIG. 4, BB is usually divided as a parting line, but the A portion is undercut.
従来の、アンダーカット部が存在する中空品のブロー成形用金型に関する技術については特許文献１に記載されているようなものがある。金型の抜き方向に関してアンダーカットになる部分を、該抜き方向とは異なる方向にエア圧や油圧で作動するシリンダーによって該金型の一部を移動させ、該アンダーカットを解消する技術である。
しかし、この従来技術では該シリンダーを作動させるためのエア圧回路もしくは油圧回路が成形機に無いと成形ができないという欠点があった。 However, this prior art has a drawback that molding cannot be performed unless the molding machine has an air pressure circuit or a hydraulic circuit for operating the cylinder.
解決しようとする課題は、金型の開き方向に関してアンダーカットになる部分を、該開き方向とは異なる方向に型抜きするためのシリンダー作動用のエア圧回路もしくは油圧回路が成形機に無いと成形ができないという点である。本発明は上記の点を解決するためになされた。 The problem to be solved is that if the molding machine does not have an air pressure circuit or hydraulic circuit for cylinder operation to die-cut a part that is undercut in the opening direction of the mold in a direction different from the opening direction. It is a point that cannot be done. The present invention has been made to solve the above-described points.
本発明は、ブロー成形用２分割金型において、片方の分割型にラックを固定し、もう一方の分割型に該ラックに連動するピニオンと、該ピニオンに連動するギアと、該ギアに連動する回動腕とを設け、
該回動腕は金型の開き方向に関してアンダーカットになる部分を含んで形成され、
金型の開閉に連動して
金型の開き方向とは異なる方向に
該回動腕が開閉することを最も主要な特徴とする。
The present invention relates to a two-part mold for blow molding, in which a rack is fixed to one split mold, a pinion interlocking with the rack, a gear interlocking with the pinion, and a gear interlocking with the gear. A rotating arm,
The rotating arm is formed to include an undercut portion with respect to the mold opening direction,
In conjunction with the opening and closing of the mold
The main feature is that the rotating arm opens and closes in a direction different from the opening direction of the mold .
本発明によれば金型の開き方向に関してアンダーカットになる部分を、
回動腕によって該抜き方向とは異なる方向に型抜きするため、
シリンダー作動用のエア圧回路や油圧回路が成形機に無くても成形ができるという利点がある。
According to the present invention, the portion that is undercut with respect to the opening direction of the mold,
In order to die-cut in a direction different from the drawing direction by the rotating arm ,
There is an advantage that molding can be performed without a cylinder operating air pressure circuit or hydraulic circuit in the molding machine.
金型の開き方向に関してアンダーカットになる部分を、該開き方向とは異なる方向に型抜きするためのシリンダー作動用のエア圧回路もしくは油圧回路が成形機に無くても成形可能にするという目的を、ブロー成形用２分割金型の片方の型にラックを固定し、もう一方の型にピニオン及びギアと、それに連動する回動腕とを設け、
該回動腕は金型の開き方向に関してアンダーカットになる部分を含んで形成され、
金型の開閉に連動して
金型の開き方向とは異なる方向に
該回動腕を開閉させることによって、成形性および生産性を損なわずに実現した。
The purpose of enabling molding even if the molding machine does not have an air pressure circuit or a hydraulic circuit for cylinder operation for punching a part that is undercut in the opening direction of the mold in a direction different from the opening direction. The rack is fixed to one mold of the two-part mold for blow molding, and the other mold is provided with a pinion and a gear, and a rotating arm interlocking therewith,
The rotating arm is formed to include an undercut portion with respect to the mold opening direction,
In conjunction with the opening and closing of the mold
By opening and closing the rotating arm in a direction different from the opening direction of the mold, the moldability and productivity were not impaired.
図３は、本発明の１実施例を示す型開き状態の横断面図である。１，１は型締め装置、３，３はピニオン、４，４はギア、５，５はラック、６，６は２分割された金型、７，７は
金型の開き方向に関してアンダーカットになる部分を含んで形成され、
金型の開閉に連動して
金型の開き方向とは異なる方向に回動する
回動腕を表す。型締め装置１，１が型開き状態にあり、回動腕７，７は開いた状態にある。
FIG. 3 is a cross-sectional view of the mold opening state showing one embodiment of the present invention. 1 and 1 are clamping devices, 3 and 3 are pinions, 4 and 4 are gears, 5 and 5 are racks, 6 and 6 are two-part molds, and 7 and 7 are
It is formed including the part that becomes undercut in the opening direction of the mold,
In conjunction with the opening and closing of the mold
Represents a rotating arm that rotates in a direction different from the opening direction of the mold . The mold clamping devices 1 and 1 are in the mold open state, and the rotating arms 7 and 7 are in the open state.
該金型６，６の中心に原始パリソン（図示せず）を押出し該型締め装置１，１を型締めすると、２分割された該金型６，６の片方に固定された該ラック５，５がスライドし、２分割された該金型６，６のもう一方に設定され該ラック5，５に噛み合った該ピニオン３，３がいわゆる「ラックアンドピニオン機構」により回転し、更に該ピニオン３，３に連動した該ギア４，４が回転し、更に該ギア４，４に連動して
型締め方向とは異なる方向に
該回動腕７，７が閉じる。
When a primitive parison (not shown) is extruded at the center of the molds 6 and 6 and the mold clamping devices 1 and 1 are clamped, the rack 5 fixed to one of the molds 6 and 6 divided into two parts. 5 is slid and the pinions 3 and 3 set on the other side of the dies 6 and 6 divided into two and meshed with the racks 5 and 5 are rotated by a so-called “rack and pinion mechanism”, and the pinion 3 The gears 4 and 4 linked to the gears 3 and 4 rotate, and further linked to the gears 4 and 4.
The rotating arms 7 and 7 are closed in a direction different from the mold clamping direction .
図1は該金型６，６が閉じた状態を表す横断面図である。次に該原始パリソン内に低圧空気を吹き込むと該原始パリソンは膨張し、変形して成形品８の形状になる。 FIG. 1 is a cross-sectional view showing a state in which the molds 6 and 6 are closed. Next, when low-pressure air is blown into the primitive parison, the primitive parison expands and deforms into the shape of the molded product 8.
その後冷却して型開きする時は、図2に示すように該金型６，６が開き始めると２分割された該金型６，６の片方に固定された該ラック５，５がスライドし、２分割された該金型６，６のもう一方に設定され該ラック5，５に噛み合った該ピニオン３，３が回転し、更に該ピニオン３，３に連動した該ギア４，４が回転し、更に該ギア４，４に連動して該回動腕７，７も該「ラックアンドピニオン機構」により
型開き方向とは異なる方向に
開き始め、結局図３に示すように該金型６，６及び該回動腕７，７は完全に開いた状態になる。
Thereafter, when the mold is opened after cooling, as shown in FIG. 2, when the molds 6 and 6 begin to open, the racks 5 and 5 fixed to one of the two divided molds 6 and 6 slide. The pinions 3 and 3 that are set on the other side of the molds 6 and 6 divided into two and meshed with the racks 5 and 5 rotate, and further the gears 4 and 4 interlocked with the pinions 3 and 3 rotate. Further, in conjunction with the gears 4 and 4, the rotating arms 7 and 7 are also moved by the “rack and pinion mechanism”.
The mold starts to open in a direction different from the mold opening direction . Eventually, as shown in FIG. 3, the molds 6 and 6 and the rotating arms 7 and 7 are completely opened.
そのため該成形品８は該金型６，６及び該回動腕７，７から完全に分離するので容易に取り出すことができる。 Since therefore the molded article 8 is completely separated from the mold 6,6 and該回Doude 7,7 can be easily taken out.
以上実施例に述べたように本発明によれば、金型の抜き方向に関してアンダーカットになる部分を、
回動腕によって該抜き方向とは異なる方向に型抜きするため、
シリンダー作動用のエア圧回路もしくは油圧回路が成形機に無くても成形可能となるという効果がある。
As described above in the embodiment, according to the present invention, the portion that is undercut with respect to the mold drawing direction,
In order to die-cut in a direction different from the drawing direction by the rotating arm ,
There is an effect that molding is possible even if the air pressure circuit or hydraulic circuit for operating the cylinder is not provided in the molding machine.
自動車用デッキボードや家庭用テーブルの天板等の成形加工用金型に利用可能である。 It can be used for molds for molding such as car deck boards and home table top plates.
１ 型締め装置
３ ピニオン
４ ギア
５ ラック
６ 金型
７ 回動腕
８ 成形品
Ａ アンダーカット
Ｂ−Ｂ パーティングライン
1 Clamping device 3 Pinion 4 Gear 5 Rack 6 Mold 7 Rotating arm 8 Molded product A Undercut BB Parting line
Claims (1)
該回動腕は金型の開き方向に関してアンダーカットになる部分を含んで形成され、
金型の開閉に連動して
金型の開き方向とは異なる方向に
該回動腕が開閉することを特徴とするブロー成形用金型
In a two-part mold for blow molding, a rack is fixed to one split mold, a pinion interlocking with the rack is connected to the other split mold, a gear interlocking with the pinion, and a rotating arm interlocking with the gear; Provided,
The rotating arm is formed to include an undercut portion with respect to the mold opening direction,
In conjunction with the opening and closing of the mold
Blow molding mold characterized in that the rotating arm opens and closes in a direction different from the opening direction of the mold
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006104384A JP4909616B2 (en) | 2006-04-05 | 2006-04-05 | Mold for blow molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006104384A JP4909616B2 (en) | 2006-04-05 | 2006-04-05 | Mold for blow molding |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2006218869A JP2006218869A (en) | 2006-08-24 |
| JP2006218869A5 JP2006218869A5 (en) | 2006-12-21 |
| JP4909616B2 true JP4909616B2 (en) | 2012-04-04 |
Family
ID=36981477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2006104384A Expired - Fee Related JP4909616B2 (en) | 2006-04-05 | 2006-04-05 | Mold for blow molding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4909616B2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60115425A (en) * | 1983-11-28 | 1985-06-21 | Ushigoro Sumitomo | Blow molding apparatus for bent product |
| JP3977012B2 (en) * | 2000-12-27 | 2007-09-19 | 株式会社吉野工業所 | Container with undercut and blow mold suitable for molding the container |
-
2006
- 2006-04-05 JP JP2006104384A patent/JP4909616B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2006218869A (en) | 2006-08-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2654166A1 (en) | Mold tool for the production of extrusion blow molded products | |
| PT1950029E (en) | Method of controlling the opening and closing of an extrusion blow mould and blowing device arranged to implement same | |
| WO2006056437A3 (en) | Blow molding machine | |
| JP5501116B2 (en) | Blow molding method | |
| JP4909616B2 (en) | Mold for blow molding | |
| US10022904B2 (en) | Blow molding process and apparatus | |
| WO2007055820A8 (en) | Machine for compression molding closure shells | |
| JP2017128007A (en) | Mold clamping device and method | |
| JP5796978B2 (en) | Blow molding method | |
| CN104002466B (en) | Blow mold fabrication and equipment | |
| JP2002036341A (en) | Method and apparatus for molding | |
| ITMI20082011A1 (en) | APPARATUS FOR THE FORMING OF PANELS | |
| CN107570666A (en) | A kind of mould of easy-clear casting rising head | |
| US20160167281A1 (en) | Blow molding mold and blow molding product fabricated with same | |
| CN203508925U (en) | Rough casting molding device | |
| JP4095093B2 (en) | Injection mold | |
| WO2008061326A3 (en) | Blowing mold | |
| JP3144859U (en) | Mold structure of resin insert molding machine | |
| US20080079198A1 (en) | Dynamic device and method for forming a blow-molded article | |
| US20060049550A1 (en) | Injection blow molding method for producing plastic containers | |
| JP2005212370A (en) | Manufacturing equipment for resin molded article | |
| WO2009019301A3 (en) | Process and die for manufacturing a plastic hollow body | |
| JP2006110752A (en) | Mold, molding method and molded product | |
| CN207273839U (en) | A kind of injection blow molding of the convenient die sinking of the T-shaped slide construction of band | |
| CN206633279U (en) | A kind of mold mechanism for cancelling die parting line |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20061107 |
|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20090216 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20110712 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20110823 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20111003 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20120110 |
|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20120116 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20150120 Year of fee payment: 3 |
|
| R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20150120 Year of fee payment: 3 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |