JPH0531786A - Overflow controlling device of extruder in two layer wire coating equipment - Google Patents
Overflow controlling device of extruder in two layer wire coating equipmentInfo
- Publication number
- JPH0531786A JPH0531786A JP3192115A JP19211591A JPH0531786A JP H0531786 A JPH0531786 A JP H0531786A JP 3192115 A JP3192115 A JP 3192115A JP 19211591 A JP19211591 A JP 19211591A JP H0531786 A JPH0531786 A JP H0531786A
- Authority
- JP
- Japan
- Prior art keywords
- extruder
- electric wire
- overflow
- open
- actuators
- 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.)
- Granted
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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/695—Flow dividers, e.g. breaker plates
- B29C48/70—Flow dividers, e.g. breaker plates comprising means for dividing, distributing and recombining melt flows
- B29C48/71—Flow dividers, e.g. breaker plates comprising means for dividing, distributing and recombining melt flows for layer multiplication
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
- B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Molding Of Porous Articles (AREA)
- Processes Specially Adapted For Manufacturing Cables (AREA)
- Manufacturing Of Electric Cables (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、二層電線被覆装置にお
ける押出機のオーバフロー制御装置に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an overflow control device for an extruder in a two-layer electric wire coating device.
【０００２】[0002]
【従来の技術】フォームスキン等の二層被覆電線1 は、
図４に示すように、電線2 の外周をフォーム3 及びスキ
ン4 の二層で被覆している。この二層被覆電線1 を製造
する際には、図５に示すように、モータ5 により駆動さ
れる主押出機6 でフォーム用の樹脂を、モータ7 により
駆動される副押出機8 でスキン用の樹脂を夫々押出し、
これらの各樹脂をクロスヘッド9 で電線の外周に順次二
層に被覆する。2. Description of the Related Art A two-layer covered electric wire 1 such as a foam skin is
As shown in FIG. 4, the outer periphery of the electric wire 2 is covered with two layers of foam 3 and skin 4. When manufacturing this two-layer covered electric wire 1, as shown in FIG. 5, the resin for foam is used by the main extruder 6 driven by the motor 5, and the skin resin is used by the auxiliary extruder 8 driven by the motor 7. Extruding each resin,
Each of these resins is sequentially covered in two layers on the outer circumference of the electric wire by the crosshead 9.
【０００３】しかし、これら押出機6,8 は、その立ち上
り時から所定温度及び圧力の樹脂が押出される訳ではな
く、温度及び圧力等にバラツキがある。そこで、従来
は、主押出機6 とクロスヘッド9 との間にオーバフロー
弁10を、副押出機8 とクロスヘッド9 との間にオーバフ
ロー弁11を夫々介装し、このオーバフロー弁10,11 のハ
ンドル10a,11a をオペレータが手動でタイミング良く開
くようにしている。なお、一般に起動及び停止時には、
先ず主押出機6 のオーバフロー弁10を開又は閉し、次に
副押出機8 のオーバフロー弁11を開又は閉する順序であ
る。However, these extruders 6 and 8 do not extrude the resin at a predetermined temperature and pressure from the time they start up, and there are variations in temperature and pressure. Therefore, conventionally, an overflow valve 10 is provided between the main extruder 6 and the crosshead 9, and an overflow valve 11 is provided between the auxiliary extruder 8 and the crosshead 9, respectively. The operator manually opens the handles 10a and 11a at a proper timing. In addition, generally when starting and stopping,
First, the overflow valve 10 of the main extruder 6 is opened or closed, and then the overflow valve 11 of the auxiliary extruder 8 is opened or closed.
【０００４】[0004]
【発明が解決しようとする課題】従来はオペレータが２
個のオーバフロー弁10,11 を所定の順序で適当なタイミ
ングを判断しながら開閉操作しているため、非常に高度
な熟練を要し、またタイミングを誤まることもある。本
発明は、かかる従来の課題に鑑み、所定のタイミングで
自動的にオーバフロー弁を開閉できるようにすることを
目的とする。Conventionally, there are two operators.
Since the individual overflow valves 10 and 11 are opened / closed in a predetermined order while determining proper timing, a very high degree of skill is required and the timing may be incorrect. The present invention has been made in view of such conventional problems, and an object of the present invention is to automatically open and close an overflow valve at a predetermined timing.
【０００５】[0005]
【課題を解決するための手段】本発明は、主押出機12で
押出した樹脂と副押出機14で押出した樹脂とをクロスヘ
ッド16で電線17の外周に二層に被覆するように構成する
と共に、各押出機12,14 の出口側にオーバフロー弁18,1
9 を開閉自在に設けた二層電線被覆装置において、各オ
ーバフロー弁18,19 を開閉操作するアクチュエータ27,2
8 と、電線17の線速を設定値と比較して各アクチュエー
タ27,28 を作動させる開閉制御部30とを設けたものであ
る。According to the present invention, a resin extruded by a main extruder 12 and a resin extruded by a sub-extruder 14 are coated with a crosshead 16 on the outer circumference of an electric wire 17 in two layers. Together with the overflow valves 18,1 on the outlet side of each extruder 12,14.
In a two-layer electric wire coating device with 9 openable and closable, actuators 27,2 that open and close each overflow valve 18,19
8 and an opening / closing control unit 30 that operates the actuators 27 and 28 by comparing the linear velocity of the electric wire 17 with a set value.
【０００６】[0006]
【作用】起動動作中、オーバフロー弁18,19 は開状態に
あり、各押出機12,14 から押出された樹脂を外部にオー
バフローさせている。そして、電線17の線速が設定値以
上になると、制御部30から各アクチュエータ27,28 に閉
指令が出力し、各オーバフロー弁18,19が閉じる。[Function] During the starting operation, the overflow valves 18 and 19 are in the open state, and the resin extruded from the extruders 12 and 14 overflows to the outside. When the linear velocity of the electric wire 17 exceeds the set value, the control unit 30 outputs a close command to the actuators 27 and 28, and the overflow valves 18 and 19 are closed.
【０００７】また停止動作の場合には、線速が設定値以
下になると、制御部30から各アクチュエータ27,28 に開
指令が出力し、各オーバフロー弁18,19 が開く。従っ
て、設定されたタイミングでオーバフロー弁18,19 を自
動的に開閉できる。In the stop operation, when the linear velocity becomes equal to or lower than the set value, the control unit 30 outputs an open command to the actuators 27 and 28, and the overflow valves 18 and 19 are opened. Therefore, the overflow valves 18 and 19 can be automatically opened and closed at the set timing.
【０００８】[0008]
【実施例】以下、本発明の実施例を図面に基づいて詳述
する。図１において、12は主押出機で、モータ13により
駆動される。14は副押出機で、モータ15により駆動され
る。16はクロスヘッドで、各押出機12,14 から押出され
た樹脂で電線17の外周に被覆するようになっている。Embodiments of the present invention will now be described in detail with reference to the drawings. In FIG. 1, 12 is a main extruder, which is driven by a motor 13. 14 is an auxiliary extruder, which is driven by a motor 15. Reference numeral 16 denotes a crosshead, which is configured to cover the outer circumference of the electric wire 17 with the resin extruded from the extruders 12 and 14.
【０００９】18,19 はオーバフロー弁で、各押出機12,1
4 の出口側とクロスヘッド16との間に介装されている。
このオーバフロー弁18,19 は、図３のＡ及びＢに示すよ
うに、通路20,21,22を有する本体23内に、通路24,25 を
有する弁体26を回動自在に備えたロータリ型であって、
閉時には図３のＡに示すように通路24を介して通路20,2
1 が連通状態にあり、また開時には通路25を介して通路
20,22 が連通して樹脂を通路22から外部へとオーバフロ
ーさせるようになっている。Numerals 18 and 19 are overflow valves, and each extruder 12,1
It is installed between the exit side of 4 and the crosshead 16.
As shown in FIGS. 3A and 3B, the overflow valves 18 and 19 are rotary type in which a valve body 26 having passages 24 and 25 is rotatably provided in a main body 23 having passages 20, 21 and 22. And
At the time of closing, as shown in A of FIG.
1 is in communication, and when it is open,
20, 22 communicate with each other so that the resin overflows from the passage 22 to the outside.
【００１０】27,28 はロータリアクチュエータで、その
出力軸はオーバフロー弁18,19 を開閉操作するように、
各オーバフロー弁18,19 の弁体26に連結されている。29
は電線17の線速を検出する速度センサーで、これにはラ
イン速度を制御するライン速度制御系に組込まれている
ものが利用されている。30は開閉制御部で、電線17の線
速を設定値と比較して各ロータリアクチュエータ27,28
に作動の指令を与えるようになっている。開閉制御部30
は、図２に示すように起動時及び停止時の電線17の線速
を設定するための設定部31,32 と、速度センサー29から
の線速と各設定値とを比較する比較部33,34 とを有す
る。設定部31では 550ｍ／分と 350ｍ／分の線速が設定
されており、起動時に電線17の線速が 550ｍ／分以上と
なったときに比較部33が閉指令を出し、また停止時に電
線17の線速が 350ｍ／分以下になったときに比較部33が
開指令を出す。一方、設定部32では、 600ｍ／分と 250
ｍ／分の線速が設定されており、起動時に線速が 600ｍ
／分以上となった時に比較部34が閉指令を出し、また停
止時に 250ｍ／分以下となったときに比較部34が開指令
を出力するようになっている。35は起動指令部、36は停
止指令部である。27 and 28 are rotary actuators, the output shafts of which open and close the overflow valves 18 and 19,
It is connected to the valve body 26 of each overflow valve 18, 19. 29
Is a speed sensor for detecting the line speed of the electric wire 17, and a sensor incorporated in a line speed control system for controlling the line speed is used for this. Reference numeral 30 denotes an opening / closing control unit, which compares the wire speed of the electric wire 17 with a set value and
It is designed to give a command to operate. Open / close control unit 30
Is a setting unit 31, 32 for setting the linear velocity of the electric wire 17 at the time of starting and stopping, and a comparing unit 33, for comparing the linear velocity from the speed sensor 29 with each set value as shown in FIG. 34 and. The setting unit 31 sets the line speeds of 550 m / min and 350 m / min. When the line speed of the electric wire 17 becomes 550 m / min or more at startup, the comparison unit 33 issues a close command, and at the time of stop, the electric wire 17 When the linear velocity of 17 becomes 350 m / min or less, the comparison unit 33 issues an open command. On the other hand, in the setting unit 32, 600 m / min and 250
The linear velocity is set to m / min, and the linear velocity is 600m at startup.
The comparison unit 34 issues a close command when the speed is above / min, and the open command when the speed is below 250 m / min when stopped. Reference numeral 35 is a start command unit, and 36 is a stop command unit.
【００１１】次に動作を説明する。起動指令部35により
装置全体に起動指令を与えると、各部が起動動作に入
る。この時、各オーバフロー弁18,19 は何れも開状態に
あり、各押出機12,14 から押出された樹脂を通路20から
通路25を経て通路22へとオーバフローさせている。一
方、電線17の線速を速度センサー29で検出し、その値を
設定値と比較している。そして、電線17の線速が 550ｍ
／分以上になると、比較部33が閉指令を出力し、ロータ
リアクチュエータ27が作動してオーバフロー弁18を閉じ
る。また線速が 600ｍ／分以上になると、比較部34が閉
指令を出力し、ロータリアクチュエータ28が作動してオ
ーバフロー弁19を閉じる。従って、主押出機12から押出
された樹脂は線速が 550ｍ／分以上になれば、また副押
出機14から押出された樹脂は線速が 600ｍ／分以上にな
れば夫々クロスヘッド16へと供給されることになる。Next, the operation will be described. When the start command unit 35 gives a start command to the entire apparatus, each unit starts a start operation. At this time, each of the overflow valves 18 and 19 is in the open state, and the resin extruded from each of the extruders 12 and 14 overflows from the passage 20 to the passage 22 through the passage 25. On the other hand, the speed of the electric wire 17 is detected by the speed sensor 29, and the value is compared with the set value. And the speed of the wire 17 is 550m
When it exceeds / minute, the comparison unit 33 outputs a close command, the rotary actuator 27 operates, and the overflow valve 18 is closed. When the linear velocity exceeds 600 m / min, the comparison unit 34 outputs a close command, the rotary actuator 28 operates, and the overflow valve 19 is closed. Therefore, when the resin extruded from the main extruder 12 has a linear velocity of 550 m / min or more, and when the resin extruded from the auxiliary extruder 14 has a linear velocity of 600 m / min or more, it is sent to the crosshead 16 respectively. Will be supplied.
【００１２】停止の際には停止指令部36を操作すると、
全体が停止の動作に入る。この時、電線17の線速が 350
ｍ／分以下になれば比較部33が、 250ｍ／分以下になれ
ば比較部34が夫々開指令を出す。そして、各ロータリア
クチュエータ27,28 が作動し、各オーバフロー弁18,19
を開ける。このように電線17の線速を検出し、その線速
を起動及び停止時の設定値と比較してオーバフロー弁1
8,19 を開閉することによって、常時、設定されたタイ
ミングで自動的にオーバフロー弁18,19 を開閉すること
ができる。従って、オペレータの熟練が不要であると共
に、起動、停止時のミスの発生も防止できる。When the stop command section 36 is operated at the time of stop,
The whole goes into the stop operation. At this time, the speed of wire 17 is 350
If it is less than m / min, the comparing unit 33 issues an open command, and if it is less than 250 m / min, the comparing unit 34 issues an open command. Then, the rotary actuators 27 and 28 are activated, and the overflow valves 18 and 19 are
Open. In this way, the line velocity of the electric wire 17 is detected, and the line velocity is compared with the set values at start and stop, and the overflow valve 1
By opening and closing 8,19, the overflow valves 18,19 can always be automatically opened and closed at the set timing. Therefore, the skill of the operator is not required, and the occurrence of mistakes at the time of starting and stopping can be prevented.
【００１３】なお、実施例では、ロータリアクチュエー
タ27,28 を例示したが、これに代えてラックピニオンと
シリンダとを組合せたものを用いても良い。Although the rotary actuators 27 and 28 are illustrated in the embodiment, a combination of a rack and pinion and a cylinder may be used instead of the rotary actuators 27 and 28.
【００１４】[0014]
【発明の効果】本発明によれば、各オーバフロー弁18,1
9 を開閉操作するアクチュエータ27,28 と、電線17の線
速を設定値と比較して各アクチュエータ27,28 を作動さ
せる開閉制御部30とを設けているので、オーバフロー弁
18,19 を設定されたタイミングで自動的に開閉でき、従
って、オペレータの熟練度が不要になると共に、起動、
停止時のミスの発生も防止できる。According to the present invention, each overflow valve 18,1
Since the actuators 27 and 28 that open and close 9 and the opening and closing control unit 30 that operates the actuators 27 and 28 by comparing the wire speed of the electric wire 17 with the set value are provided,
18,19 can be opened and closed automatically at the set timing, so the operator's skill level becomes unnecessary and
It is also possible to prevent mistakes when stopping.
【図１】本発明の一実施例を示す構成図である。FIG. 1 is a configuration diagram showing an embodiment of the present invention.
【図２】本発明の一実施例を示す制御系のブロック図で
ある。FIG. 2 is a block diagram of a control system showing an embodiment of the present invention.
【図３】本発明の一実施例を示すオーバフロー弁の断面
図である。FIG. 3 is a sectional view of an overflow valve showing an embodiment of the present invention.
【図４】被覆電線の断面図である。FIG. 4 is a cross-sectional view of a covered electric wire.
【図５】従来例を示す構成図である。FIG. 5 is a configuration diagram showing a conventional example.
12 主押出機 14 副押出機 16 クロスヘッド 17 電線 18 オーバフロー弁 19 オーバフロー弁 27 アクチュエータ 28 アクチュエータ 29 速度センサー 30 開閉制御部 12 Main extruder 14 Secondary extruder 16 Crosshead 17 Electric wire 18 Overflow valve 19 Overflow valve 27 Actuator 28 Actuator 29 Speed sensor 30 Open / close control section
───────────────────────────────────────────────────── フロントページの続き (72)発明者 多代 直行 兵庫県神戸市灘区新在家南町２−２−５ ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tashiro Go directly 2-2-5, Minami-cho, Shinzaika, Nada-ku, Kobe-shi, Hyogo
Claims (1)
(14)で押出した樹脂とをクロスヘッド(16)で電線(17)の
外周に二層に被覆するように構成すると共に、各押出機
(12)(14)の出口側にオーバフロー弁(18)(19)を開閉自在
に設けた二層電線被覆装置において、各オーバフロー弁
(18)(19)を開閉操作するアクチュエータ(27)(28)と、電
線(17)の線速を設定値と比較して各アクチュエータ(27)
(28)を作動させる開閉制御部(30)とを設けたことを特徴
とする二層電線被覆装置における押出機のオーバフロー
制御装置。Claims: 1. A resin extruded by a main extruder (12) and a sub-extruder.
The extruder and the resin extruded in (14) are configured to cover the outer circumference of the electric wire (17) in two layers with the crosshead (16), and each extruder
(12) In the two-layer electric wire coating device in which the overflow valves (18) and (19) are installed on the outlet side of (14) so that they can be opened and closed, each overflow valve
(18) Actuators (27) that open and close (19) and (28) and compare the wire speed of the electric wire (17) with the set value for each actuator (27).
An overflow control device for an extruder in a two-layer electric wire coating device, comprising: an opening / closing control unit (30) for activating (28).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3192115A JP2857512B2 (en) | 1991-07-31 | 1991-07-31 | Extruder overflow controller for double-layer electric wire coating equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3192115A JP2857512B2 (en) | 1991-07-31 | 1991-07-31 | Extruder overflow controller for double-layer electric wire coating equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0531786A true JPH0531786A (en) | 1993-02-09 |
| JP2857512B2 JP2857512B2 (en) | 1999-02-17 |
Family
ID=16285923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3192115A Expired - Lifetime JP2857512B2 (en) | 1991-07-31 | 1991-07-31 | Extruder overflow controller for double-layer electric wire coating equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2857512B2 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2196316A1 (en) * | 2008-12-09 | 2010-06-16 | Palo Alto Research Center Incorporated | Micro-extrusion printhead with nozzle valves |
| US8557689B2 (en) | 2006-11-01 | 2013-10-15 | Solarworld Innovations Gmbh | Extruded structure with equilibrium shape |
| US8586129B2 (en) | 2010-09-01 | 2013-11-19 | Solarworld Innovations Gmbh | Solar cell with structured gridline endpoints and vertices |
| US8692110B2 (en) | 2008-11-24 | 2014-04-08 | Palo Alto Research Center Incorporated | Melt planarization of solar cell bus bars |
| US8704086B2 (en) | 2008-11-07 | 2014-04-22 | Solarworld Innovations Gmbh | Solar cell with structured gridline endpoints vertices |
| US8875653B2 (en) | 2012-02-10 | 2014-11-04 | Palo Alto Research Center Incorporated | Micro-extrusion printhead with offset orifices for generating gridlines on non-square substrates |
| US9102084B2 (en) | 2005-11-17 | 2015-08-11 | Solarworld Innovations Gmbh | Solar cell with high aspect ratio gridlines supported between co-extruded support structures |
| US9120190B2 (en) | 2011-11-30 | 2015-09-01 | Palo Alto Research Center Incorporated | Co-extruded microchannel heat pipes |
| US10371468B2 (en) | 2011-11-30 | 2019-08-06 | Palo Alto Research Center Incorporated | Co-extruded microchannel heat pipes |
-
1991
- 1991-07-31 JP JP3192115A patent/JP2857512B2/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9102084B2 (en) | 2005-11-17 | 2015-08-11 | Solarworld Innovations Gmbh | Solar cell with high aspect ratio gridlines supported between co-extruded support structures |
| US8557689B2 (en) | 2006-11-01 | 2013-10-15 | Solarworld Innovations Gmbh | Extruded structure with equilibrium shape |
| US8704086B2 (en) | 2008-11-07 | 2014-04-22 | Solarworld Innovations Gmbh | Solar cell with structured gridline endpoints vertices |
| US8692110B2 (en) | 2008-11-24 | 2014-04-08 | Palo Alto Research Center Incorporated | Melt planarization of solar cell bus bars |
| EP2196316A1 (en) * | 2008-12-09 | 2010-06-16 | Palo Alto Research Center Incorporated | Micro-extrusion printhead with nozzle valves |
| US8960120B2 (en) | 2008-12-09 | 2015-02-24 | Palo Alto Research Center Incorporated | Micro-extrusion printhead with nozzle valves |
| US8586129B2 (en) | 2010-09-01 | 2013-11-19 | Solarworld Innovations Gmbh | Solar cell with structured gridline endpoints and vertices |
| US9120190B2 (en) | 2011-11-30 | 2015-09-01 | Palo Alto Research Center Incorporated | Co-extruded microchannel heat pipes |
| US10160071B2 (en) | 2011-11-30 | 2018-12-25 | Palo Alto Research Center Incorporated | Co-extruded microchannel heat pipes |
| US10371468B2 (en) | 2011-11-30 | 2019-08-06 | Palo Alto Research Center Incorporated | Co-extruded microchannel heat pipes |
| US8875653B2 (en) | 2012-02-10 | 2014-11-04 | Palo Alto Research Center Incorporated | Micro-extrusion printhead with offset orifices for generating gridlines on non-square substrates |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2857512B2 (en) | 1999-02-17 |
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