JPH0234304B2 - JUSHITANKUSEIZOHOOYOBISORENIMOCHIIRUJUSHITANKUSEIKEIKANAGATA - Google Patents
JUSHITANKUSEIZOHOOYOBISORENIMOCHIIRUJUSHITANKUSEIKEIKANAGATAInfo
- Publication number
- JPH0234304B2 JPH0234304B2 JP18773184A JP18773184A JPH0234304B2 JP H0234304 B2 JPH0234304 B2 JP H0234304B2 JP 18773184 A JP18773184 A JP 18773184A JP 18773184 A JP18773184 A JP 18773184A JP H0234304 B2 JPH0234304 B2 JP H0234304B2
- Authority
- JP
- Japan
- Prior art keywords
- resin
- tank
- gate
- protrusion
- resin tank
- 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 - Lifetime
Links
- 239000011347 resin Substances 0.000 claims description 87
- 229920005989 resin Polymers 0.000 claims description 87
- 238000000465 moulding Methods 0.000 claims description 30
- 238000004519 manufacturing process Methods 0.000 claims description 12
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 239000012634 fragment Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007730 finishing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/06—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material
- F28F21/067—Details
-
- 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
-
- 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
- B29C45/2701—Details not specific to hot or cold runner channels
- B29C45/2708—Gates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/0219—Arrangements for sealing end plates into casing or header box; Header box sub-elements
- F28F9/0224—Header boxes formed by sealing end plates into covers
- F28F9/0226—Header boxes formed by sealing end plates into covers with resilient gaskets
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
(イ) 発明の技術分野
本発明は、樹脂タンク、特にラジエータ、ヒー
タコア等の熱交換器に使用する樹脂タンクの製造
法及びそれに用いる成形金型に関する。DETAILED DESCRIPTION OF THE INVENTION (a) Technical Field of the Invention The present invention relates to a method of manufacturing a resin tank, particularly a resin tank used in a heat exchanger such as a radiator or a heater core, and a mold used therein.
(ロ) 技術の背景
自動車のラジエータ等の熱交換器は、軽量化及
び安価にするために樹脂タンクが用いられるが、
一般に第７図に示すように樹脂タンクＴと座板Ｓ
との間の水密性を良好に保持するためにタンク本
体１のフランジ２にＯ−リング３を介して座板Ｓ
を取り付けたものが広く採用される（例えば特開
昭58−153097号）。(b) Background of the technology Resin tanks are used in heat exchangers such as automobile radiators to make them lighter and cheaper.
Generally, as shown in Fig. 7, the resin tank T and seat plate S
Seat plate S is attached to flange 2 of tank body 1 via O-ring 3 to maintain good watertightness between the
Those equipped with this are widely adopted (for example, JP-A-58-153097).
(ハ) 従来技術と問題点
斯かる樹脂タンクは、樹脂タンク成形金型を用
いて成形され、その後、ゲート樹脂片を撤去して
いるが、このゲート樹脂片４は目立たないように
するため第８図に示すようにタンク本体１のフラ
ンジ２に設けられる。(c) Prior art and problems Such a resin tank is molded using a resin tank mold, and then the gate resin piece is removed, but this gate resin piece 4 is placed in the first place to make it less noticeable. As shown in FIG. 8, it is provided on the flange 2 of the tank body 1.
しかしゲート樹脂片の撤去箇所に不規則形状の
破断片が残留していると、樹脂タンクＴと座板Ｓ
との嵌合の際に、フランジ２の外周面１１と座板
Ｓとの立ち上り内面側とが密着せず、充分な水密
性が得られないため、成形後にゲート樹脂片４の
撤去面を平坦な面になるように仕上げ加工してい
る。 However, if irregularly shaped fragments remain at the location where the gate resin fragments were removed, the resin tank T and seat plate S
When mating with the flange 2, the outer peripheral surface 11 of the flange 2 and the rising inner surface of the seat plate S do not come into close contact with each other, and sufficient watertightness cannot be obtained. Therefore, the removed surface of the gate resin piece 4 is made flat after molding. Finished to give a smooth surface.
従つて、それだけ工数が増大し、製造能率が低
下する。また、ゲート樹脂片４が成形されるとこ
ろ、即ち成形金型の注入ゲートから遠い位置に該
当する樹脂タンクＴの上部側には樹脂が行き渡り
にくく、高精度の樹脂タンクＴが得られない欠点
があつた。 Therefore, the number of man-hours increases and manufacturing efficiency decreases. In addition, the resin is difficult to spread to the upper part of the resin tank T where the gate resin piece 4 is molded, that is, the position far from the injection gate of the molding die, and a high-precision resin tank T cannot be obtained. It was hot.
(ニ) 発明の目的
本発明は如上の欠点を解決するためになされた
もので、ゲート樹脂片を撤去した面の仕上げ加工
を廃止することによつて製造の能率化が図れ、か
つ樹脂タンクと座板との嵌合部の水密性が充分保
持され、しかも高精度の樹脂タンクが得られる樹
脂タンク製造法及びそれに用いる樹脂タンク成形
金型を提供することを目的とするものである。(d) Purpose of the Invention The present invention has been made to solve the above-mentioned drawbacks, and by eliminating the finishing process on the surface from which the gate resin piece has been removed, manufacturing efficiency can be improved, and the resin tank can be made more efficient. It is an object of the present invention to provide a method for manufacturing a resin tank in which the watertightness of the fitting portion with the seat plate is sufficiently maintained and a resin tank with high precision can be obtained, and a mold for molding the resin tank used therein.
(ホ) 発明の構成
本発明の基本的な構成は、樹脂タンク成形後、
樹脂タンクに形成されたゲート樹脂片を撤去する
樹脂タンク製造法に於て、上記成形樹脂タンクの
側面中央部に突起を一体に成形し、その突起にゲ
ート樹脂片を形成することを特徴とするものであ
り、本発明の他の構成は樹脂タンク成形金型に於
て、タンク成形空間の側面中央部に突起成形空間
を設け、その突起成形空間に樹脂注入ゲートを設
けることを特徴とするものである。(e) Structure of the invention The basic structure of the present invention is that after molding the resin tank,
A resin tank manufacturing method for removing a gate resin piece formed on a resin tank is characterized in that a protrusion is integrally molded at the center of a side surface of the molded resin tank, and a gate resin piece is formed on the protrusion. Another structure of the present invention is that the resin tank molding mold is characterized in that a protrusion molding space is provided in the center of the side surface of the tank molding space, and a resin injection gate is provided in the protrusion molding space. It is.
(ヘ) 発明の実施例
以下、図面により本発明の実施例を詳細に説明
する。(F) Embodiments of the invention Examples of the invention will be described in detail below with reference to the drawings.
第１乃図至第５図は、本発明の樹脂タンク製造
法の一実施例を示したものである。 1 to 5 show an embodiment of the resin tank manufacturing method of the present invention.
まず、第１図及び第２図に示すような上下成形
金型５ａ，５ｂを用いて第３図に示すような樹脂
タンクTaを成形する。 First, a resin tank Ta as shown in FIG. 3 is molded using upper and lower molding molds 5a and 5b as shown in FIGS. 1 and 2.
即ち、タンク成形空間６の例えば左側の側面中
央部に突起成形空間７を設けてその突起成形空間
７の外側に樹脂注入ゲート８を設けた上成形金型
５ａとフランジ成形空間９を設けた下成形金型５
ｂで構成された樹脂タンク成形金型５を用いて、
その樹脂注入ゲート８から融樹脂を注入して第３
図に示すような側面中央部に突起１０を一体に設
け、かつその突起１０にゲート樹脂片４を形成し
た樹脂タンクTaを成形する。 That is, a protrusion molding space 7 is provided at the center of the left side of the tank molding space 6, and a resin injection gate 8 is provided outside the protrusion molding space 7, and an upper mold 5a is provided, and a lower molding mold 5a is provided with a flange molding space 9. Molding mold 5
Using the resin tank molding mold 5 configured in b,
The molten resin is injected from the resin injection gate 8 and the third
A resin tank Ta is molded in which a protrusion 10 is integrally provided at the center of the side surface as shown in the figure, and a gate resin piece 4 is formed on the protrusion 10.
その後に於て、樹脂タンクTaの突起１０に設
けられているゲート樹脂片４を左右いずれかの方
向に折り曲げて突起１０から撤去して第４図及び
第５図に示すような樹脂タンクＴとする。 After that, the gate resin piece 4 provided on the protrusion 10 of the resin tank Ta is bent in either the left or right direction and removed from the protrusion 10 to form the resin tank T as shown in FIGS. 4 and 5. do.
このような製造法によれば、樹脂タンクTaの
側面中央部に設けられた突起１０からゲート樹脂
片４を撤去するから、ゲート樹脂片４の撤去後の
仕上げ加工を必要としない。即ち、ゲート樹脂片
４がタンク本体１のフランジ２に設けられていな
いから、樹脂タンクＴと座板Ｓとの間の水密性を
保持するための仕上げ加工が不要であり、それだ
け工数が低下して製造能率がが図れる。 According to such a manufacturing method, since the gate resin piece 4 is removed from the protrusion 10 provided at the center of the side surface of the resin tank Ta, no finishing work is required after the gate resin piece 4 is removed. That is, since the gate resin piece 4 is not provided on the flange 2 of the tank body 1, there is no need for finishing processing to maintain watertightness between the resin tank T and the seat plate S, and the number of man-hours is reduced accordingly. Manufacturing efficiency can be improved.
また、樹脂タンク成形金型５のタンク成形空間
６の側面中央部に設けられた突起成形空間７に形
成された樹脂注入ゲート８から溶融樹脂を注入す
るから、即ち樹脂注入ゲート８を成形金型５のキ
ヤビテイのほぼ中央部に設けるので、成形される
樹脂タンクTaの上下左右方向に樹脂が確実に行
き渡り、良好な成形が行なわれる。特に、第１図
に示すように突起成形空間７を上下方向に伸びた
ものとすれば、樹脂が上下方向に良好に行き渡
る。しかも、突起成形空間７を設けることによつ
て樹脂が２段階に拡散され注入されるので、一層
よく注入されて高精度の樹脂タンクＴが得られ
る。 Moreover, since the molten resin is injected from the resin injection gate 8 formed in the protrusion molding space 7 provided at the center of the side surface of the tank molding space 6 of the resin tank molding mold 5, the resin injection gate 8 is injected into the molding mold. Since it is provided approximately in the center of the cavity No. 5, the resin is reliably distributed in the vertical and horizontal directions of the resin tank Ta to be molded, and good molding is performed. In particular, if the protrusion molding space 7 is made to extend vertically as shown in FIG. 1, the resin will spread well in the vertical direction. Moreover, by providing the protrusion molding space 7, the resin is diffused and injected in two stages, so that the resin tank T can be injected more efficiently and with high precision.
第６図は本発明の他の実施例で、ゲート樹脂片
４の上下幅及び左右幅を全体的に突起１０の断面
幅よりも充分に小さいものにした場合である。 FIG. 6 shows another embodiment of the present invention, in which the vertical and horizontal widths of the gate resin piece 4 are made sufficiently smaller than the cross-sectional width of the protrusion 10 as a whole.
この場合にはゲート樹脂片４の断面積が突起１
０の断面積よりも充分小さいので、その境界でゲ
ート樹脂片４が折れ易くなる。 In this case, the cross-sectional area of the gate resin piece 4 is
Since the cross-sectional area is sufficiently smaller than the cross-sectional area of 0, the gate resin piece 4 easily breaks at the boundary.
尚、本発明に於て、樹脂タンクTaと一体に形
成する突起１０及びゲート樹脂片４の形状は特に
問わない。 In the present invention, the shape of the protrusion 10 and the gate resin piece 4 formed integrally with the resin tank Ta is not particularly limited.
(ト) 発明の効果
以上説明したように本発明によれば、成形樹脂
タンクの側面中央部に突起を一体に成形し、その
突起にゲート樹脂片を設けたことで、ゲート樹脂
片を撤去した面の仕上げ加工を廃止することがで
き工数が低減し製造の能率化が図れ、かつ、樹脂
タンクと座板との嵌合部の水密性を充分保持され
て信頼性の高い樹脂タンクが得られる。しかも、
溶融樹脂は全体的に均一に行き渡り、高精度の樹
脂タンクが得られる。(G) Effects of the Invention As explained above, according to the present invention, by integrally molding a protrusion in the center of the side surface of a molded resin tank and providing a gate resin piece on the protrusion, the gate resin piece can be removed. Finishing of the surface can be eliminated, reducing man-hours and improving manufacturing efficiency. Furthermore, the watertightness of the fitting part between the resin tank and the seat plate is sufficiently maintained, resulting in a highly reliable resin tank. . Moreover,
The molten resin is distributed evenly throughout the tank, resulting in a high-precision resin tank.
第１図乃至第５図は本発明の一実施例を示した
もので、第１図は樹脂タンク成形金型の正面断面
図、第２図はその側面断面図、第３図はゲート樹
脂片及び樹脂タンクの正面図、第４図は製造され
た樹脂タンクの正面図、第５図はその側面図、第
６図は本発明の他の実施例の製造された樹脂タン
クの側面断面図、第７図は熱交換器の要部断面
図、第８図は従来の成形樹脂タンクの側面図であ
る。
１……タンク本体、２……フランジ、４……ゲ
ート樹脂片、５ａ……上成形金型、５ｂ……下成
形金型、５……（樹脂タンク）成形金型、６……
タンク成形空間、７……突起成形空間、８……樹
脂注入ゲート、９……フランジ成形空間、１０…
…突起、Ta……樹脂タンク、Ｔ……樹脂タンク、
Ｓ……座板。
Figures 1 to 5 show an embodiment of the present invention, in which Figure 1 is a front sectional view of a resin tank mold, Figure 2 is a side sectional view thereof, and Figure 3 is a gate resin piece. and a front view of a resin tank, FIG. 4 is a front view of a manufactured resin tank, FIG. 5 is a side view thereof, and FIG. 6 is a side sectional view of a manufactured resin tank according to another embodiment of the present invention. FIG. 7 is a sectional view of a main part of a heat exchanger, and FIG. 8 is a side view of a conventional molded resin tank. 1...Tank body, 2...Flange, 4...Gate resin piece, 5a...Upper mold, 5b...Lower mold, 5...(Resin tank) mold, 6...
Tank molding space, 7... Protrusion molding space, 8... Resin injection gate, 9... Flange forming space, 10...
...protrusion, Ta...resin tank, T...resin tank,
S... Seat board.
Claims (1)
たゲート樹脂片を撤去する樹脂タンク製造法に於
て、上記成形樹脂タンクの側面中央部に突起を一
体に成形し、その突起にゲート樹脂片を形成する
ことを特徴とする樹脂タンク製造法。 ２ ゲート樹脂片は、突起の断面よりも小断面積
となつている特許請求の範囲第１項記載の樹脂タ
ンク製造法。 ３ タンク成形空間の側面中央部に突起成形空間
を設け、その突起成形空間に樹脂注入ゲートを設
けることを特徴とする樹脂タンク成形金型。[Claims] 1. In a resin tank manufacturing method in which a gate resin piece formed on the resin tank is removed after the resin tank is molded, a protrusion is integrally molded in the center of the side surface of the molded resin tank, and the A resin tank manufacturing method characterized by forming a gate resin piece on a protrusion. 2. The resin tank manufacturing method according to claim 1, wherein the gate resin piece has a smaller cross-sectional area than the cross-section of the protrusion. 3. A resin tank molding die, characterized in that a protrusion molding space is provided in the center of the side surface of the tank molding space, and a resin injection gate is provided in the protrusion molding space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18773184A JPH0234304B2 (en) | 1984-09-07 | 1984-09-07 | JUSHITANKUSEIZOHOOYOBISORENIMOCHIIRUJUSHITANKUSEIKEIKANAGATA |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18773184A JPH0234304B2 (en) | 1984-09-07 | 1984-09-07 | JUSHITANKUSEIZOHOOYOBISORENIMOCHIIRUJUSHITANKUSEIKEIKANAGATA |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2022593A Division JP2555522B2 (en) | 1993-02-08 | 1993-02-08 | Resin tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6164420A JPS6164420A (en) | 1986-04-02 |
| JPH0234304B2 true JPH0234304B2 (en) | 1990-08-02 |
Family
ID=16211193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18773184A Expired - Lifetime JPH0234304B2 (en) | 1984-09-07 | 1984-09-07 | JUSHITANKUSEIZOHOOYOBISORENIMOCHIIRUJUSHITANKUSEIKEIKANAGATA |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0234304B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0361411U (en) * | 1989-10-20 | 1991-06-17 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5071241B2 (en) * | 2008-05-26 | 2012-11-14 | 株式会社デンソー | Heat exchanger |
| JP5862352B2 (en) * | 2012-02-17 | 2016-02-16 | 株式会社デンソー | Heat exchanger tank |
| CN106114743A (en) * | 2016-08-01 | 2016-11-16 | 瑞安市金隼动力研发制造有限公司 | Motorcycle service brake and processing mold thereof |
-
1984
- 1984-09-07 JP JP18773184A patent/JPH0234304B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0361411U (en) * | 1989-10-20 | 1991-06-17 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6164420A (en) | 1986-04-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| EXPY | Cancellation because of completion of term |