JPH0438218B2 - - Google Patents
Info
- Publication number
- JPH0438218B2 JPH0438218B2 JP18665786A JP18665786A JPH0438218B2 JP H0438218 B2 JPH0438218 B2 JP H0438218B2 JP 18665786 A JP18665786 A JP 18665786A JP 18665786 A JP18665786 A JP 18665786A JP H0438218 B2 JPH0438218 B2 JP H0438218B2
- Authority
- JP
- Japan
- Prior art keywords
- punch
- blow
- mounting
- molded
- molded product
- 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
- 238000000465 moulding Methods 0.000 claims description 7
- 238000005553 drilling Methods 0.000 claims description 5
- 238000000071 blow moulding Methods 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004080 punching Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 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
- 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
- B29C49/4802—Moulds with means for locally compressing part(s) of the parison in the main blowing cavity
-
- 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
- B29C2793/00—Shaping techniques involving a cutting or machining operation
- B29C2793/0045—Perforating
-
- 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
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/04—Extrusion blow-moulding
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
(イ) 産業上の利用分野
本発明はブロー成形物に設けられる取付片に成
形時に自動的に取付孔を穿設出来る様にしたブロ
ー成形物の取付孔自動穿設装置に関するものであ
る。[Detailed Description of the Invention] (a) Field of Industrial Application The present invention provides a method for automatically drilling attachment holes in a blow-molded article, which allows attachment holes to be automatically punched in a mounting piece provided on the blow-molded article during molding. It is related to the device.
(ロ) 従来の技術及び本発明が解決しようとする問
題点
従来、自動車用部品として使用する取付片を設
けたダクト或いはタンク類をブロー成形により製
造する場合には、図面第２図に示す様に成形物本
体ａと取付片ｂとを一体的に成形した後、図面第
３図に示す様に穿孔機により取付片に取付孔ｃを
穿設するか又は、図面第４図に示す様に取付片ｂ
に設ける取付孔ｃの上端をドーム状に一体成形し
た後、ドーム状の部分ｄをナイフ等で切断するこ
とにより取付孔を設けたものであるが、この種の
方法による時は成形物を大量に生産する場合には
手数がかかりコスト高になる欠点があり、又取付
孔の一端にバリが残る為美的に取付孔を形成する
ことができず、然も穿孔機を使用して取付孔を穿
設する場合には、形成される取付孔の孔位置が不
正確でばらつきを生じる等、品質面に於て兎角の
問題を有するものであつた。(b) Prior art and problems to be solved by the present invention Conventionally, when manufacturing ducts or tanks equipped with mounting pieces used as automobile parts by blow molding, the process was as shown in Figure 2 of the drawing. After integrally molding the molded body a and the mounting piece b, a mounting hole c is bored in the mounting piece using a drilling machine as shown in Figure 3 of the drawings, or a mounting hole c is bored in the mounting piece as shown in Figure 4 of the drawings. Mounting piece b
The mounting hole c is formed by integrally molding the upper end of the mounting hole c into a dome shape, and then cutting the dome-shaped portion d with a knife, etc. However, when using this type of method, a large amount of molded material is required. However, if the mounting hole is produced using a drilling machine, it is labor-intensive and costly, and the mounting hole cannot be formed aesthetically because burrs remain at one end of the mounting hole. In the case of drilling, there are problems in terms of quality, such as the position of the mounting holes formed being inaccurate and causing variations.
(ハ) 問題点を解決する為の手段
本発明は上記の様な従来の欠点に鑑み、ブロー
成形時に成形物に設けられる取付片に取付孔を自
動的に穿設出来るようにする為、左右の金型に於
けるブロー成形物の取付片が成形される箇所に対
応させて夫々ポンチの受管と案内管とを埋設し、
案内管にはポンチを嵌合し、このポンチの一端は
成形機の制御盤に設けたタイマーにコントロール
されてポンチを進退させるシリンダーに連結し、
受管の端部下面には打抜き片の排出口を設けたも
のである。(C) Means for Solving the Problems In view of the above-mentioned conventional drawbacks, the present invention has been developed to automatically drill mounting holes in the mounting pieces provided on the molded product during blow molding. In the mold, a receiving tube and a guide tube of the punch are buried in correspondence with the locations where the attachment pieces of the blow-molded product are to be molded, respectively.
A punch is fitted into the guide tube, and one end of this punch is connected to a cylinder that moves the punch forward and backward under the control of a timer installed on the control panel of the molding machine.
A discharge port for the punched piece is provided on the lower surface of the end of the receiving tube.
(ニ) 実施例及び作用
今、本発明の実施例を図面に付き説明すれば下
記の通りである。(d) Embodiments and operations Embodiments of the present invention will now be explained with reference to the drawings as follows.
図中１，２は左右の金型で、内側面には夫々成
形物ａの型面３が加工されており、、右両外側に
はスペーサー４を差し挟んで取付板５，５を設け
ることにより夫々左右に空間部６に形成してあ
る。 In the figure, 1 and 2 are the left and right molds, the mold surfaces 3 of the molded product a are processed on the inside surfaces, respectively, and mounting plates 5 and 5 are provided on both right outsides with spacers 4 inserted. Thus, space portions 6 are formed on the left and right sides, respectively.
７，８は左右の金型１，２に於けるブロー成形
物ａの取付片ｂが成形される箇所に対応させて
夫々埋設したポンチの受管と案内管、９は案内管
８に嵌合したポンチで、このポンチの一端は成形
機（図面に示してない）の制御盤に設けたタイマ
ーにコントロールされてポンチを進退させる右側
の金型２の外側面に固定した油圧シリンダー１０
に連結してある。 7 and 8 are punch receiving tubes and guide tubes that are buried in the left and right molds 1 and 2, corresponding to the locations where the attachment pieces b of the blow-molded product a are to be molded, respectively; 9 is a guide tube that fits into the guide tube 8; One end of this punch is connected to a hydraulic cylinder 10 fixed to the outside surface of the mold 2 on the right side, which moves the punch forward and backward under the control of a timer installed in the control panel of the molding machine (not shown in the drawing).
It is connected to.
１１は左側の空間部６に突出した受管７の端部
下面に設けた打抜き片の排出口で、この排出口か
らブロー成形物に形成される取付片からポンチに
より打抜かれた打抜き片を排出させるものであ
る。 Reference numeral 11 denotes a punching piece discharge port provided on the lower surface of the end of the receiver tube 7 protruding into the left space 6, and the punching piece punched from the mounting piece formed in the blow molded product is discharged from this discharge port. It is something that makes you
本発明は上記の様に構成されているから今、左
右の金型１，２の外側に設けた取付板５，５をブ
ロー成形機に取付けた後、成形機を稼動させれ
ば、自動的に供給される熱可塑性原料のバリソン
がエアーブローにより左右の金型１，２の型面
３，３に密着固化した後、左右の金型１，２が開
く直前に油圧シリンダー１０によりポンチ９が前
進し取付片ｂがポンチにより打抜かれ、図面第３
図に示す様に取付孔ｃが穿設された後、左右の金
型１，２が開くので、ブロー成形時に取付孔を自
動的に穿設出来るものである。 Since the present invention is configured as described above, after attaching the mounting plates 5, 5 provided on the outside of the left and right molds 1, 2 to the blow molding machine, if the molding machine is operated, it will automatically After the balisong, which is a thermoplastic raw material, is air-blown and solidified to the mold surfaces 3, 3 of the left and right molds 1, 2, the punch 9 is pressed by the hydraulic cylinder 10 just before the left and right molds 1, 2 are opened. Move forward and the mounting piece b is punched out with a punch, as shown in Figure 3.
As shown in the figure, after the mounting holes c are drilled, the left and right molds 1 and 2 are opened, so that the mounting holes can be automatically drilled during blow molding.
尚、打抜かれた打抜き片は後続の打抜き片に押
されて受管７の内部を次第に左側へ移動し、排出
口１１から排出される。 Note that the punched piece is pushed by the subsequent punched piece and gradually moves to the left inside the receiving tube 7, and is discharged from the discharge port 11.
(ホ) 発明の効果
本発明は上記の様に左右の金型に夫々ポンチの
受管と案内管とを埋設し、案内管にはポンチを嵌
合し、このポンチをシリンダー等により作動させ
ることにより、左右の金型が開く迄にブロー成形
物に形成される取付片に取付孔を自動的に穿設出
来る様にしたものであるから、取付孔を設けたブ
ロー成形物を能率良く量産出来ると共に従来と比
較して大幅なコストダウンを可能にし得るもので
ある。又、従来の様に形成された取付孔の一端に
バリが生じることがなく、然も所望の正確な位置
に取付孔を穿設出来るから精度が高く優良な品質
をブロー成形物を量産出来る等の諸特徴を有する
ものである。(E) Effects of the Invention As described above, the present invention includes embedding a receiving tube and a guide tube for the punch in the left and right molds, fitting the punch into the guide tube, and operating the punch by a cylinder or the like. This makes it possible to automatically drill mounting holes in the mounting pieces formed on the blow-molded product before the left and right molds are opened, making it possible to efficiently mass-produce blow-molded products with mounting holes. At the same time, it is possible to significantly reduce costs compared to the conventional method. In addition, there is no burr at one end of the mounting hole formed as in the conventional method, and the mounting hole can be drilled at the desired exact position, making it possible to mass-produce blow-molded products with high precision and excellent quality. It has the following characteristics.
第１図は本発明に係る装置の一部切欠き正面
図。第２図は従来の成形物の製造方法を示す断面
図。第３図は同上断面図。第４図は従来の成形物
の他の製造方法を示す断面図である。
図中、１，２は金型。７は受管。８は案内管。
９はポンチ。１０はシリンダー。１１は排出口。
ａはブロー成形物。ｂは取付片。ｃは取付孔。
FIG. 1 is a partially cutaway front view of a device according to the present invention. FIG. 2 is a sectional view showing a conventional method for manufacturing a molded article. Figure 3 is a sectional view of the same as above. FIG. 4 is a sectional view showing another method of manufacturing a conventional molded article. In the figure, 1 and 2 are molds. 7 is the receiving tube. 8 is a guide tube.
9 is punch. 10 is a cylinder. 11 is the outlet.
a is a blow molded product. b is the mounting piece. c is the mounting hole.
Claims (1)
成形される箇所に対応させて夫々ポンチの受管と
案内管とを埋設し、案内管にはポンチを嵌合し、
このポンチの一端は成形機の制御盤に設けたタイ
マーにコントロールされてポンチを進退させるシ
リンダーに連結し、受管の端部下面には打抜き片
の排出口を設けてなるブロー成形物の取付孔自動
穿設装置。1. Bury the receiving tube and guide tube of the punch in the left and right molds corresponding to the locations where the attachment pieces for the blow-molded product will be molded, respectively, fit the punch into the guide tube,
One end of this punch is connected to a cylinder that moves the punch forward and backward under the control of a timer installed on the control panel of the molding machine, and the lower side of the end of the receiving tube has a hole for attaching the blow molded product, with an outlet for the punched piece. Automatic drilling equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18665786A JPS6342835A (en) | 1986-08-08 | 1986-08-08 | Attaching-hole automatic boring device for blow formed form |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18665786A JPS6342835A (en) | 1986-08-08 | 1986-08-08 | Attaching-hole automatic boring device for blow formed form |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6342835A JPS6342835A (en) | 1988-02-24 |
| JPH0438218B2 true JPH0438218B2 (en) | 1992-06-23 |
Family
ID=16192402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18665786A Granted JPS6342835A (en) | 1986-08-08 | 1986-08-08 | Attaching-hole automatic boring device for blow formed form |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6342835A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0688321B2 (en) * | 1989-09-25 | 1994-11-09 | 日産自動車株式会社 | Method for manufacturing blow molded product with clip |
-
1986
- 1986-08-08 JP JP18665786A patent/JPS6342835A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6342835A (en) | 1988-02-24 |
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