JPH0349921A - Injection device for molding press - Google Patents
Injection device for molding pressInfo
- Publication number
- JPH0349921A JPH0349921A JP18684189A JP18684189A JPH0349921A JP H0349921 A JPH0349921 A JP H0349921A JP 18684189 A JP18684189 A JP 18684189A JP 18684189 A JP18684189 A JP 18684189A JP H0349921 A JPH0349921 A JP H0349921A
- Authority
- JP
- Japan
- Prior art keywords
- piston
- injection device
- injection
- molding press
- molding machine
- 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
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/53—Means for plasticising or homogenising the moulding material or forcing it into the mould using injection ram or piston
- B29C45/531—Drive means therefor
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】 〔産業上の利用分野〕 この発明は成形機の射出装置に関するものである。[Detailed description of the invention] [Industrial application field] This invention relates to an injection device for a molding machine.
第３図は従来の成形機の射出装置を示す正面図、第４図
は第３図の線■−■からみた一部上面図である。図にお
いて、（１）は射出シリンダで、その一部の開口部に射
出口（１ａ）を有している。（２）は射出シリンダ（１
）内に往復動可能に嵌合したピストンで、ピストンロッ
ド（２ａ）に接続されている。（３）は固定支点（３ａ
）を中心に揺動するレバーで、ピストンロッド（２ａ）
に設けられた可動支点（４）が摺動可能に係合されてい
る。なお、レバーｆ３）は油圧シリンダー（図示せず）
により駆動されるようになっている。FIG. 3 is a front view showing an injection device of a conventional molding machine, and FIG. 4 is a partial top view taken from line 1--2 in FIG. In the figure, (1) is an injection cylinder, which has an injection port (1a) at a part of its opening. (2) is the injection cylinder (1
) and is connected to the piston rod (2a). (3) is a fixed fulcrum (3a
) is a lever that swings around the piston rod (2a).
A movable fulcrum (4) provided at is slidably engaged. Note that the lever f3) is a hydraulic cylinder (not shown).
It is designed to be driven by
次に動作について説明する。Next, the operation will be explained.
油圧シリンダー（図示せず）によって揺動するレバー（
３）はてこの原理によって可動支点（４）を駆動し、ピ
ストンロッド（２ａ）及びピストン（２）を往復動させ
て射出シリンダ（１）内に載置された樹脂を射出口（１
ａ）より押出し、樹脂成形を行なう。A lever (
3) The movable fulcrum (4) is driven by the lever principle, and the piston rod (2a) and piston (2) are reciprocated to move the resin placed in the injection cylinder (1) into the injection port (1).
a) Extrusion and resin molding.
従来の成形機の射出装置は以上のように構成されている
ので、駆動源に油圧ユニットを必要とし、またピストン
（２）の位置や速度を制御するのに各種センサーを用い
るので困難な事が多いなど問題点があった。Since the injection device of a conventional molding machine is configured as described above, it requires a hydraulic unit as a drive source, and various sensors are used to control the position and speed of the piston (2), which is difficult to do. There were many problems.
この発明は上記のような問題点を解消するためになされ
たもので、ピストン駆動をサーボ機構により行なうこと
により小型に出来ると共に操作、調整が容易となる成形
機の射出装置を得ることを目的とする。This invention was made to solve the above-mentioned problems, and its purpose is to provide an injection device for a molding machine that can be made smaller and easier to operate and adjust by driving the piston using a servo mechanism. do.
この発明に係る成形機の射出装置は、射出シリンダのピ
ストン駆動をサーボ機構により行なうようにしたもので
ある。In the injection device for a molding machine according to the present invention, a piston of an injection cylinder is driven by a servo mechanism.
この発明におけるピストン駆動のサーボモードルは、ピ
ストンの位置及び速度制御が容易かつ高精度にできる。The piston-driven servo mode according to the present invention can easily and accurately control the position and speed of the piston.
以下、この発明の一実施例を第１図および第２図につい
て説明する。第１図は正面図、第２図は第１図の線■−
■からみた一部上面図であり、前記従来装置と同一また
は相当部分には同一符号を付して説明を省略する。図に
おいて、（５）はピストン（２）を駆動するためのサー
ボモードルで、このサーボモードル（５）の回転力はベ
ルト（６）、減速機（７）、カップリング（８）、ボー
ルねじ（９）の駆動力変換機構によって推力に変更され
、これによりピストン駆動されるようになっている。An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. FIG. Figure 1 is a front view, Figure 2 is the line from Figure 1 -
It is a partial top view seen from (2), and the same or corresponding parts as the conventional device are given the same reference numerals and explanations are omitted. In the figure, (5) is a servo mode for driving the piston (2), and the rotational force of this servo mode (5) is transmitted through the belt (6), the reducer (7), the coupling (8), and the ball. The driving force conversion mechanism of the screw (9) converts the driving force into thrust, which drives the piston.
次に動作について説明する。Next, the operation will be explained.
サーボモードル（５）を運転すると、その回転力はベル
ト（６）、減速ｍ （７１、カップリング（８）、ボー
ルねじ（９）の駆動力変換機構を介してピストン（２）
を動かす推力に変換され、この推力によってピストン（
２）が動いて射出シリンダ（１）内の載置樹脂が射出口
（１ａ）より射出され、樹脂成形がなされる。When the servo mode (5) is operated, its rotational force is transferred to the piston (2) via the driving force conversion mechanism of the belt (6), deceleration m (71), coupling (8), and ball screw (9).
is converted into thrust that moves the piston (
2) moves, the resin placed in the injection cylinder (1) is injected from the injection port (1a), and resin molding is performed.
以上のように、この発明によればピストンの駆動方式を
電動化のサーボけ１構としたので、従来の油圧駆動方式
では非常に困難であり、たピストンの位置及び速度の制
御が容易にしかも高精度に出来るし、又本装置では射出
圧を得る手段として従来のような油圧ではなく電動方式
としたので、油圧ユニット等が不要となり、装置全体は
非常に小型かつ安価にでき、そのメンテナンスも非常に
容易になるという効果が背られる。As described above, according to the present invention, the piston is driven by a single electric servo system, which makes it easy to control the position and speed of the piston, which was extremely difficult with the conventional hydraulic drive system. It can be performed with high precision, and since this device uses an electric method to obtain injection pressure instead of the conventional hydraulic system, there is no need for a hydraulic unit, etc., and the entire device can be made very small and inexpensive, and its maintenance is also easy. The effect is that it becomes very easy.
第１図はこの発明の一実施例による成形機の射出装置を
示す正面図、第２図は第１図の線■−ｍからみた一部上
面図、第３図は従来の成形機の射出装置を示す正面図、
第４図は第３図の線ＩＶ−■からみた一部上面図である
。
図において、（１）は射出シリンダ、（ｌａ）は射出口
、（２）はピストン、（２ａ）はピストンロッド、（５
）はサーボモードルを示す。
なお、図中同一符号は同一または相当部分を示す。Fig. 1 is a front view showing an injection device of a molding machine according to an embodiment of the present invention, Fig. 2 is a partial top view taken from line - m in Fig. 1, and Fig. 3 is a front view showing an injection device of a conventional molding machine. A front view showing the device;
FIG. 4 is a partial top view taken from line IV--■ in FIG. 3. In the figure, (1) is the injection cylinder, (la) is the injection port, (2) is the piston, (2a) is the piston rod, (5
) indicates a servo mode. Note that the same reference numerals in the figures indicate the same or corresponding parts.
Claims (1)
行なうようにしたことを特徴とする成形機の射出装置。(1) An injection device for a molding machine, characterized in that the piston of the injection cylinder is driven by a servo mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18684189A JPH0349921A (en) | 1989-07-18 | 1989-07-18 | Injection device for molding press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18684189A JPH0349921A (en) | 1989-07-18 | 1989-07-18 | Injection device for molding press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0349921A true JPH0349921A (en) | 1991-03-04 |
Family
ID=16195572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18684189A Pending JPH0349921A (en) | 1989-07-18 | 1989-07-18 | Injection device for molding press |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0349921A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03213320A (en) * | 1990-01-18 | 1991-09-18 | Fanuc Ltd | Injection device for motorized injection molding machine |
-
1989
- 1989-07-18 JP JP18684189A patent/JPH0349921A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03213320A (en) * | 1990-01-18 | 1991-09-18 | Fanuc Ltd | Injection device for motorized injection molding machine |
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