JP2673972B2 - Injection molding machine with colorant supply device - Google Patents
Injection molding machine with colorant supply deviceInfo
- Publication number
- JP2673972B2 JP2673972B2 JP2294168A JP29416890A JP2673972B2 JP 2673972 B2 JP2673972 B2 JP 2673972B2 JP 2294168 A JP2294168 A JP 2294168A JP 29416890 A JP29416890 A JP 29416890A JP 2673972 B2 JP2673972 B2 JP 2673972B2
- Authority
- JP
- Japan
- Prior art keywords
- molding machine
- switching
- injection molding
- supply device
- cleaning agent
- 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
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
- B29C45/18—Feeding the material into the injection moulding apparatus, i.e. feeding the non-plastified material into the injection unit
- B29C45/1816—Feeding auxiliary material, e.g. colouring material
Description
【発明の詳細な説明】 （産業上の利用分野） この発明は着色剤供給装置付き射出成形機に関する。Description: TECHNICAL FIELD The present invention relates to an injection molding machine with a colorant supply device.
（従来の技術） 例えば特公平１−127308号公報には着色剤供給装置付
き射出成形機が示される。この先行技術によれば、加熱
筒内に液体顔料を圧入する着色剤供給装置と液体洗浄液
を圧入する洗浄剤供給装置が設けられ、所望色の顔料お
よび洗浄剤がそれぞれの供給装置から供給される。(Prior Art) For example, Japanese Patent Publication No. 1-127308 discloses an injection molding machine with a colorant supply device. According to this prior art, a coloring agent supply device for press-fitting a liquid pigment and a cleaning agent supply device for press-fitting a liquid cleaning liquid are provided in the heating cylinder, and the pigment and the cleaning agent of a desired color are supplied from the respective supply devices. .
しかるに、この従来装置にあっては、多色着色をする
場合、添付の図面第５図に示したように、着色剤の数に
応じてそれぞれ単独の供給装置、つまり独自のカラータ
ンク110,120およびそれらの圧入ポンプ111,121、供給導
管112,122ならびに専用の注入バルブ115,125を必要とす
る。また、色替えに際しては洗浄剤を加熱筒内に注入し
なければならないので、洗浄剤のためのタンク100およ
びその圧入ポンプ101、供給導管102ならびに注入バルブ
105を必要とし、部品点数も多く設備が大がかりとな
り、色替えが煩雑となるばかりでなく、着色剤の圧入ポ
ンプ、供給導管および注入バルブ等加熱筒までの流通経
路の洗浄が必ずしも満足のいくものとすることはできな
かった。However, in this conventional device, when performing multicolor coloring, as shown in FIG. 5 of the accompanying drawings, each of them is a separate supply device, that is, its own color tank 110, 120 Press-fitting pumps 111, 121, supply conduits 112, 122 and dedicated injection valves 115, 125 are required. Further, since the cleaning agent must be injected into the heating cylinder when changing colors, the tank 100 for the cleaning agent and its press-fitting pump 101, supply conduit 102 and injection valve.
It requires 105, has a large number of parts, requires a large scale of equipment, and not only makes color change complicated, but it is also always satisfactory to clean the flow path to the heating cylinder such as the colorant press-fitting pump, supply conduit and injection valve. I couldn't.
（発明が解決しようとする課題） この発明はこのような従来技術の問題点を解決するた
めに提案されたものであって、設備装置を簡略化し、経
済的な装置を提供することを目的とするものである。ま
た、この発明は、同時に、色替えを迅速に効率良く行う
ことができる装置を提供することを目的とするものであ
る。(Problems to be Solved by the Invention) The present invention has been proposed in order to solve the problems of the prior art, and an object thereof is to simplify an equipment device and provide an economical device. To do. Another object of the present invention is to provide an apparatus capable of performing color change quickly and efficiently at the same time.
（課題を解決しようとする手段） すなわち、この発明は、射出成形機の加熱筒に洗浄剤
または着色剤を注入する単一の注入バルブを設け、前記
成形機外には洗浄剤供給部と少なくとも一つの着色剤供
給部を選択的に切換える切換部を設けて、前記注入バル
ブと前記切換部とを圧入ポンプを介して接続したことを
特徴とする着色剤供給装置付き射出成形機に係わる。(Means for Solving the Problem) That is, according to the present invention, a single injection valve for injecting a cleaning agent or a coloring agent is provided in a heating cylinder of an injection molding machine, and a cleaning agent supply unit and at least a cleaning agent supply section are provided outside the molding machine. The present invention relates to an injection molding machine with a colorant supply device, characterized in that a switching section for selectively switching one colorant supply section is provided, and the injection valve and the switching section are connected via a press-fitting pump.
（作用） この発明では、洗浄剤供給部と少なくとも一つの着色
剤供給部が、切換弁あるいは着脱自在な接続部材等の切
換部によって選択的に切換えられる。そして、前記切換
部は加熱筒に設けた注入バルブと圧入ポンプを介して接
続されており、切換部によって選択切換された着色剤ま
たは洗浄剤は単一かつ共通の圧入ポンプおよび注入バル
ブを経て加熱筒に供給される。(Operation) In the present invention, the cleaning agent supply unit and at least one colorant supply unit are selectively switched by the switching unit such as the switching valve or the detachable connecting member. The switching unit is connected to an injection valve provided on the heating cylinder via a press-fitting pump, and the colorant or cleaning agent selectively switched by the switching unit is heated via a single and common press-fitting pump and injection valve. Supplied in a cylinder.
特に、色替えに際しては、洗浄剤が切換選択されるわ
けであるが、該洗浄剤は先に使用された着色剤と共通の
圧入ポンプならびに供給導管および注入バルブ系統を流
通するものであるから、該流通経路を確実かつ効率良く
洗浄する。のみならず、洗浄剤は加熱筒内に流入して該
筒内の原料樹脂除去（パージ）も併せて行う。In particular, when changing colors, the cleaning agent is switched and selected, and since the cleaning agent flows through the press-fitting pump and the supply conduit and the injection valve system common to the previously used coloring agent, The distribution channel is washed reliably and efficiently. Not only that, the cleaning agent flows into the heating cylinder to remove (purge) the raw material resin inside the heating cylinder.
（実施例） 以下、添付の図面に従ってこの発明を説明すると、第
１図は着色剤供給装置付き射出成形機の一例を示す一部
切欠断面図、第２図はこの発明の一実施例を示す要部の
断面図、第３図は注入バルブの拡大断面図、第４図は他
の実施例の要部断面図である。(Embodiment) The present invention will be described below with reference to the accompanying drawings. Fig. 1 is a partially cutaway sectional view showing an example of an injection molding machine with a colorant supply device, and Fig. 2 shows an embodiment of the present invention. FIG. 3 is an enlarged sectional view of an injection valve, and FIG. 4 is an essential portion sectional view of another embodiment.
第１図に図示した着色剤供給装置付き射出成形機10に
おいて、符号11は加熱筒、12は加熱筒11内に回転かつ前
後進可能に挿嵌したスクリュである。In the injection molding machine 10 with a colorant supply device shown in FIG. 1, reference numeral 11 is a heating cylinder, and 12 is a screw fitted in the heating cylinder 11 so as to be rotatable and movable back and forth.
また、符号20は原料ホッパを表し、21はそのフィード
装置、22はフィードスクリュ、23はそのモータ、25は原
料投入口である。Further, reference numeral 20 represents a raw material hopper, 21 is a feed device thereof, 22 is a feed screw, 23 is a motor thereof, and 25 is a raw material inlet.
そして、この発明の着色剤供給装置は、加熱筒11に設
けられた単一の注入バルブ30と、洗浄剤供給部51と着色
剤供給部52、53を選択的に切り換える切換部50と、圧入
ポンプ60とから構成される。符号65は供給導管である。The colorant supply device of the present invention includes a single injection valve 30 provided in the heating cylinder 11, a switching section 50 for selectively switching the cleaning agent supply section 51 and the colorant supply sections 52 and 53, and a press-fitting operation. It is composed of a pump 60. Reference numeral 65 is a supply conduit.
注入バルブ30は、図のように、前記原料投入口25のフ
ィードゾーン前部のコンプレッションゾーンに近接する
位置に設置され、例えば第３図に図示したような構造を
有する。すなわち、第３図の注入バルブ30は、バルブボ
ディ31と、前記バルブボディ31内に貫設されたスリーブ
32と、前記スリーブ32内に前後動自在に嵌挿されたバル
ブロッド33と、前記バルブロッド33を前後動するエアシ
リンダ装置34の各部より構成され、バルブロッド先端の
弁部35が前記エアシリンダ装置34によって後退または前
進することによって注入口36が開閉される。なお、第３
図の符号37は供給流体の流入口、38は逆止弁、39は冷却
用エアの流出入部である。The injection valve 30 is installed at a position near the compression zone in the front part of the feed zone of the raw material charging port 25 as shown in the figure, and has a structure as shown in FIG. 3, for example. That is, the injection valve 30 shown in FIG. 3 includes a valve body 31 and a sleeve penetrating the valve body 31.
32, a valve rod 33 that is inserted into the sleeve 32 so as to be movable back and forth, and each part of an air cylinder device 34 that moves the valve rod 33 back and forth, and the valve part 35 at the tip of the valve rod is the air cylinder. Retracting or advancing by the device 34 opens and closes the inlet 36. The third
In the figure, reference numeral 37 is an inlet of supply fluid, 38 is a check valve, and 39 is an inlet / outlet of cooling air.
切換部50は、例えば第２図に図示したように、洗浄剤
供給部51と着色剤供給部52,53（ここではいずれもタン
クおよび導管部）を選択的に切り換える公知のロータリ
ー切換弁55によって構成することができる。The switching unit 50 is, for example, as shown in FIG. 2, a known rotary switching valve 55 that selectively switches between the cleaning agent supply unit 51 and the colorant supply units 52 and 53 (here, both tank and conduit sections). Can be configured.
そして、切換弁55と注入バルブ30の流入口37は圧入ポ
ンプ60を介して供給導管65によって接続される。The switching valve 55 and the inflow port 37 of the injection valve 30 are connected by the supply conduit 65 via the press-fitting pump 60.
第４図に図示した切換部は、これに対して着脱自在な
接続部材56によって構成した例である。この接続部材56
はいわゆる公知の流体継手構造よりなり、この図ではプ
ラグ部材が切換部として使用されている。従って、第４
図の例では、洗浄剤供給部51と着色剤供給部52,53側に
はソケット部材71,72,73が設けられる。ソケット部材は
洗浄剤あるいは着色剤供給用の導管に付設することがで
きるほか、それらのカートリッジタンクに直接形成する
ことができる。この場合にはいわばカセット交換方式と
いうような形式となる。第４図において第２図と共通す
る符号は第２図と同一の部材を表す。The switching portion shown in FIG. 4 is an example constituted by a connecting member 56 which is detachably attached thereto. This connecting member 56
Has a so-called known fluid coupling structure, and a plug member is used as a switching portion in this drawing. Therefore, the fourth
In the illustrated example, socket members 71, 72, 73 are provided on the cleaning agent supply section 51 and the colorant supply sections 52, 53 side. The socket member can be attached to a conduit for supplying a cleaning agent or a coloring agent, or can be directly formed on the cartridge tank thereof. In this case, the format is, for example, a cassette exchange system. 4, the same reference numerals as those in FIG. 2 represent the same members as those in FIG.
（効果） 以上図示し説明したように、この発明によれば、洗浄
剤供給部と少なくとも一つの着色剤供給部が、切換弁あ
るいは着脱自在な接続部材等の切換部によって選択的に
切換えられ、切換部によって選択切換された着色剤また
は洗浄剤は単一かつ共通の圧入ポンプおよび注入バルブ
を経て加熱筒に供給される。従って、多色着色の形成に
際しても従来のような多数の供給装置を付属することな
く、簡略な設備装置とすることができ、この種成形機と
して極めて経済的な装置を提供することができるもので
ある。(Effect) As shown and described above, according to the present invention, the cleaning agent supply unit and at least one colorant supply unit are selectively switched by the switching unit such as the switching valve or the detachable connecting member. The colorant or the cleaning agent selectively switched by the switching unit is supplied to the heating cylinder through the single and common press-fitting pump and injection valve. Therefore, even in the case of forming multicolored coloring, it is possible to provide a simple equipment without attaching a large number of conventional feeding devices, and it is possible to provide an extremely economical device as this kind of molding machine. Is.
また、特に、色替えに際しては、洗浄剤が切換選択さ
れるわけであるが、該洗浄剤は先に使用された着色剤と
共通の圧入ポンプならびに供給導管および注入バルブ系
統を流通して、該流通経路を確実かつ効率良く洗浄する
と同時に、加熱筒内に流入して該筒内の原料樹脂除去
（パージ）も併せて行う。従って、この発明によれば、
色替えを迅速に効率良く行うことができる。Further, in particular, when changing colors, the cleaning agent is switched and selected, and the cleaning agent flows through a press-fitting pump, a supply conduit and an injection valve system common to the previously used coloring agent, At the same time as reliably and efficiently cleaning the flow path, the raw material resin in the heating cylinder is removed (purged) at the same time. Therefore, according to the present invention,
Color change can be performed quickly and efficiently.
第１図は着色剤供給装置付き射出成形機の一例を示す一
部切欠断面図、第２図はこの発明の一実施例を示す要部
の断面図、第３図は注入バルブの拡大断面図、第４図は
他の実施例の要部断面図、第５図は従来装置の断面図で
ある。 10……着色剤供給装置付き射出成形機、11……加熱筒、
12……スクリュ、30……注入バルブ、33……バルブロッ
ド、36……注入口、37……流入口、50……切換部、51…
…洗浄剤供給部、52,53……着色剤供給部、55……ロー
タリー切換弁、56……接続部材、60……圧入ポンプ、65
……供給導管。FIG. 1 is a partially cutaway sectional view showing an example of an injection molding machine with a colorant supply device, FIG. 2 is a sectional view of a main part showing an embodiment of the present invention, and FIG. 3 is an enlarged sectional view of an injection valve. FIG. 4 is a sectional view of a main part of another embodiment, and FIG. 5 is a sectional view of a conventional device. 10 …… Injection molding machine with colorant supply device, 11 …… Heating tube,
12 ... Screw, 30 ... Injection valve, 33 ... Valve rod, 36 ... Injection port, 37 ... Inflow port, 50 ... Switching section, 51 ...
… Cleaning agent supply section, 52,53 …… Coloring agent supply section, 55 …… Rotary switching valve, 56 …… Connecting member, 60 …… Press-fitting pump, 65
…… Supply conduit.
Claims (3)
を注入する単一の注入バルブを設け、前記成形機外には
洗浄剤供給部と少なくとも一つの着色剤供給部を選択的
に切換える切換部を設けて、前記注入バルブと前記切換
部とを圧入ポンプを介して接続したことを特徴とする着
色剤供給装置付き射出成形機。1. A single injection valve for injecting a cleaning agent or a coloring agent is provided in a heating cylinder of an injection molding machine, and a cleaning agent supplying section and at least one coloring agent supplying section are selectively provided outside the molding machine. An injection molding machine with a colorant supply device, characterized in that a switching section for switching is provided, and the injection valve and the switching section are connected via a press-fitting pump.
よって構成されていることを特徴とする着色剤供給装置
付き射出成形機。2. The injection molding machine with a colorant supply device according to claim 1, wherein the switching portion is constituted by a switching valve.
な接続部材によって構成されていることを特徴とする着
色剤供給装置付き射出成形機。3. The injection molding machine with a colorant supply device according to claim 1, wherein the switching portion is constituted by a detachable connecting member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2294168A JP2673972B2 (en) | 1990-10-30 | 1990-10-30 | Injection molding machine with colorant supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2294168A JP2673972B2 (en) | 1990-10-30 | 1990-10-30 | Injection molding machine with colorant supply device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04250012A JPH04250012A (en) | 1992-09-04 |
| JP2673972B2 true JP2673972B2 (en) | 1997-11-05 |
Family
ID=17804196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2294168A Expired - Lifetime JP2673972B2 (en) | 1990-10-30 | 1990-10-30 | Injection molding machine with colorant supply device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2673972B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2928968B2 (en) * | 1993-06-23 | 1999-08-03 | セイコープレシジョン株式会社 | Injection molding equipment |
| JPH07148779A (en) * | 1993-11-30 | 1995-06-13 | Seikosha Co Ltd | Injection molding machine |
| DE19738861A1 (en) * | 1997-09-05 | 1999-03-11 | Basf Ag | Process for the production of colored molding compounds |
| DE10201291A1 (en) * | 2002-01-15 | 2003-07-31 | Krauss Maffei Kunststofftech | Process for producing impact-modified thermoplastic parts |
| DE102010039025A1 (en) * | 2010-08-06 | 2012-02-09 | Sumitomo (Shi) Demag Plastics Machinery Gmbh | Plasticizing unit for an injection molding machine, an extruder and the like and provided for liquid supply device |
| US9748492B2 (en) | 2012-11-02 | 2017-08-29 | Idemitsu Kosan Co., Ltd. | Organic electroluminescent device |
-
1990
- 1990-10-30 JP JP2294168A patent/JP2673972B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04250012A (en) | 1992-09-04 |
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