JP2000246780A - Resin extruder, and resin extrusion-molding - Google Patents
Resin extruder, and resin extrusion-moldingInfo
- Publication number
- JP2000246780A JP2000246780A JP11050790A JP5079099A JP2000246780A JP 2000246780 A JP2000246780 A JP 2000246780A JP 11050790 A JP11050790 A JP 11050790A JP 5079099 A JP5079099 A JP 5079099A JP 2000246780 A JP2000246780 A JP 2000246780A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- resin material
- die
- extruder
- switching
- 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
Landscapes
- Joining Of Glass To Other Materials (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、樹脂押出装置およ
び樹脂押出成形方法に関し、とくにガラス板の周縁にス
ペーサなどの樹脂部材を一体に成形する場合などのよう
に、ガラス板の辺部とコーナ部とで樹脂材料の押出量を
変化させる必要がある場合に好適な樹脂押出装置および
樹脂押出成形方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resin extrusion apparatus and a resin extrusion molding method, and more particularly, to a method of integrally molding a resin member such as a spacer around the periphery of a glass sheet. The present invention relates to a resin extruding apparatus and a resin extrusion molding method suitable for a case where it is necessary to change the extrusion amount of a resin material between parts.
【０００２】[0002]
【従来の技術】図３は、２枚のガラス板間における周縁
に樹脂製のスペーサを一体に成形する装置の一例を示す
側面図である。2. Description of the Related Art FIG. 3 is a side view showing an example of an apparatus for integrally molding a resin spacer on a peripheral edge between two glass plates.
【０００３】樹脂製のスペーサを一体成形するにあた
り、吸引装置と案内ローラとを備えた案内手段２，３
で、相互間に所定の間隔が保持されるように２枚のガラ
ス板１，１を概略鉛直に支持する。２枚のガラス板１の
下縁を支持する移動手段４，５および吸引装置６により
ガラス板１を掴んで水平方向に移動させる移動手段７
で、ガラス板１をガラス板面に平行かつ水平方向に移動
させる。ダイ９は、鉛直方向に移動して２枚のガラス板
１間に所定の断面形状で樹脂材料８を押し出すことがで
き、かつ回転により樹脂材料８の押出方向を変更可能で
ある。こうして２枚のガラス板１の水平方向の移動とダ
イ９の上下方向の移動およびダイ９の回転とを行いなが
ら、ダイ９から樹脂材料８を押し出すことにより、２枚
のガラス板１間の周縁に固化されたスペーサ（樹脂部材
８’）を成形する。[0003] When integrally forming a resin spacer, guide means 2 and 3 provided with a suction device and a guide roller.
Then, the two glass plates 1 and 1 are supported substantially vertically so that a predetermined interval is maintained therebetween. Moving means 4 and 5 for supporting the lower edges of the two glass plates 1 and moving means 7 for holding the glass plate 1 and moving it in the horizontal direction by the suction device 6
Then, the glass plate 1 is moved in a horizontal direction parallel to the glass plate surface. The die 9 can move in the vertical direction to extrude the resin material 8 between the two glass plates 1 with a predetermined sectional shape, and can change the extrusion direction of the resin material 8 by rotation. By extruding the resin material 8 from the die 9 while performing the horizontal movement of the two glass plates 1, the vertical movement of the die 9, and the rotation of the die 9 in this manner, the peripheral edge between the two glass plates 1 is formed. The solidified spacer (resin member 8 ') is formed.
【０００４】図４は、矩形のガラス板１の周縁の辺部１
ａとコーナ部１ｂとに樹脂材料８を押出して連続した一
筆書きの樹脂部材８’を成形する場合を示す平面図であ
る。上記したように、ガラス板１の周縁に樹脂部材８’
を成形するには、図３に示すように、まず移動手段４に
よってガラス板１の右側の辺部１ａがダイ９の位置に来
るようにガラス板１を移動させる。その後、ダイ９をガ
ラス板１の右側の辺部１ａに沿って下端から上端に向か
って移動させつつ樹脂材料８を押出し、上端のコーナ部
１ｂ位置に来たらダイ９の移動を停止し押出方向を９０
゜回転させる。そして、移動手段４，５によりふたたび
ガラス板１を右方向に移動させてダイ９により上側の辺
部１ａに樹脂材料８を押出し、ダイ９が左側上端のコー
ナ部１ｂに来たときにガラス板１の移動を停止する。そ
の後、ダイ９を前記と同方向にさらに９０゜回転させ、
今度はダイ９を下方に移動させつつガラス板１の左側の
辺部１ａに樹脂材料８を押出す。ダイ９が下端のコーナ
部１ｂに来たら、ふたたびダイ９を同方向に９０゜回転
し、今度はガラス板１を左側に移動させることによりガ
ラス板１の下辺の辺部１ａに樹脂材料８を押し出す操作
を行う。こうして、ガラス板１の全周縁に連続した樹脂
部材８’を成形する。FIG. 4 shows a side 1 of a rectangular glass plate 1 at the periphery.
FIG. 6 is a plan view showing a case where a resin material 8 is extruded into a and a corner portion 1b to form a continuous one-stroke resin member 8 ′. As described above, the resin member 8 ′ is attached to the periphery of the glass plate 1.
As shown in FIG. 3, first, the glass plate 1 is moved by the moving means 4 so that the right side 1a of the glass plate 1 comes to the position of the die 9. Thereafter, the resin material 8 is extruded while moving the die 9 along the right side 1a of the glass plate 1 from the lower end toward the upper end. When the resin material 8 reaches the corner 1b at the upper end, the movement of the die 9 is stopped and the extruding direction is changed. 90
゜ Rotate. Then, the glass plate 1 is moved rightward again by the moving means 4 and 5, and the resin material 8 is extruded to the upper side 1a by the die 9, and when the die 9 comes to the corner 1b at the upper left end, Stop the movement of 1. Thereafter, the die 9 is further rotated by 90 ° in the same direction as above,
This time, the resin material 8 is extruded to the left side 1a of the glass plate 1 while moving the die 9 downward. When the die 9 comes to the corner 1b at the lower end, the die 9 is rotated again by 90 ° in the same direction, and then the glass plate 1 is moved to the left, so that the resin material 8 is applied to the lower side 1a of the glass plate 1. Perform the extrusion operation. In this way, a resin member 8 ′ that is continuous on the entire periphery of the glass plate 1 is formed.
【０００５】ガラス板１の辺部１ａに樹脂材料８を押し
出す際には、ガラス板１の移動が直線移動であるため
に、ガラス板１とダイ９とを高速で相対移動させて樹脂
材料８を押し出すことが可能である。したがって、樹脂
部材８’を成形するための樹脂材料８の押出量は大であ
る。一方、直角のコーナ部１ｂに樹脂材料８を押し出す
際には、ガラス板１とダイ９との相対移動を停止して、
その場でダイ９を回転させる必要があるため、移動速度
は低速になる。したがって、コーナ部１ｂに形成される
樹脂部材８’の厚さを辺部１ａと同一になるようにする
ためには、コーナ部１ｂへの樹脂材料８の押出量を極小
にする必要がある。When the resin material 8 is extruded onto the side 1a of the glass plate 1, the glass plate 1 and the die 9 are relatively moved at high speed because the movement of the glass plate 1 is linear. It is possible to extrude. Therefore, the extrusion amount of the resin material 8 for molding the resin member 8 'is large. On the other hand, when extruding the resin material 8 into the right-angled corner 1b, the relative movement between the glass plate 1 and the die 9 is stopped,
Since the die 9 needs to be rotated on the spot, the moving speed is reduced. Therefore, in order to make the thickness of the resin member 8 'formed in the corner 1b the same as that of the side 1a, it is necessary to minimize the amount of resin material 8 pushed into the corner 1b.
【０００６】図５は、樹脂材料の押出しを行う従来の樹
脂押出装置１０の一例を示す断面図である。図５の樹脂
押出装置１０は、駆動装置１１によって回転駆動される
スクリュウ１２が内蔵された押出機１３を備えている。
押出機１３は、一端上部に設けた樹脂投入口１４から供
給されたペレット状の樹脂材料８を、スクリュウ１２の
回転による発熱および押出機１３に備えた蒸気や電気な
どによって加熱するヒータ１５によって加熱軟化する。
軟化した樹脂材料８は、スクリュウ１２の回転により所
定量が他端の吐出口１６から吐出されるようになってい
る。このとき、吐出口１６から吐出される樹脂材料８
は、ほぼ一定の圧力で吐出されるようになっている。FIG. 5 is a sectional view showing an example of a conventional resin extruder 10 for extruding a resin material. The resin extruder 10 shown in FIG. 5 includes an extruder 13 in which a screw 12 driven to rotate by a driving device 11 is built.
The extruder 13 heats the pellet-shaped resin material 8 supplied from the resin inlet 14 provided at the upper end of the extruder 13 by the heat generated by the rotation of the screw 12 and the heater 15 provided by the extruder 13 for heating by steam or electricity. Softens.
A predetermined amount of the softened resin material 8 is discharged from the discharge port 16 at the other end by the rotation of the screw 12. At this time, the resin material 8 discharged from the discharge port 16
Is discharged at a substantially constant pressure.
【０００７】さらに、押出機１３の吐出口１６に、樹脂
供給管１７を介してダイ９を接続している。ダイ９は、
ノズル開口１８と樹脂排出口１９とに樹脂材料８を切替
えて供給できるようにした三方弁２０を内蔵している。
図中２１は三方弁２０の切替用モータである。Further, a die 9 is connected to a discharge port 16 of the extruder 13 via a resin supply pipe 17. Die 9
A three-way valve 20 is provided for switching and supplying the resin material 8 to the nozzle opening 18 and the resin outlet 19.
In the figure, reference numeral 21 denotes a switching motor of the three-way valve 20.
【０００８】ダイ９は、図３に示したように、上下方向
に移動したり回転するようになっている。さらにダイ９
は、ガラス板１を移動させるための案内手段２，３やそ
の他の種々の構成部材が備えられるべき場所に設けられ
るために、押出機１３から離して設ける必要がある。そ
のために、押出機１３とダイ９とは比較的長い樹脂供給
管１７で接続される。As shown in FIG. 3, the die 9 moves up and down and rotates. Die 9
Is required to be provided at a location where the guide means 2 and 3 for moving the glass plate 1 and other various components should be provided. For this purpose, the extruder 13 and the die 9 are connected by a relatively long resin supply pipe 17.
【０００９】図５の樹脂押出装置１０によってダイ９か
らガラス板１の周縁における辺部１ａに樹脂材料８を押
し出すときは、ノズル開口１８を樹脂供給管１７に連通
させるように三方弁２０を切替えて、ノズル開口１８か
ら大量の樹脂材料８を押し出す。コーナ部１ｂに樹脂材
料８を押し出すときは、樹脂排出口１９が樹脂供給管１
７に連通するように三方弁２０を切替える。こうして、
樹脂材料８を外部に排出し、ノズル開口１８から樹脂材
料８の押出しを停止するかわずかな量を押し出す。When the resin material 8 is extruded from the die 9 to the side 1a at the periphery of the glass plate 1 by the resin extruder 10 of FIG. 5, the three-way valve 20 is switched so that the nozzle opening 18 communicates with the resin supply pipe 17. Then, a large amount of the resin material 8 is extruded from the nozzle opening 18. When the resin material 8 is extruded into the corner 1b, the resin outlet 19 is
The three-way valve 20 is switched so as to communicate with 7. Thus,
The resin material 8 is discharged to the outside, and the extrusion of the resin material 8 is stopped or a small amount is extruded from the nozzle opening 18.
【００１０】図６は、図５の樹脂押出装置１０によって
コーナ部１ｂを有するガラス板１に樹脂部材８’を成形
する場合における、ガラス板１とダイ９との相対移動速
度（Ａ）と、樹脂供給管１７内における樹脂材料８の圧
力（Ｂ）と、ダイ９のノズル開口１８から押出される樹
脂材料８の押出量（Ｃ）との関係を示す線図である。こ
こでガラス板１の移動は、図６（Ａ）に示すように移
動、停止が瞬時に行われるものとして、矩形の波形で示
される。FIG. 6 shows the relative moving speed (A) between the glass plate 1 and the die 9 when the resin member 8 'is formed on the glass plate 1 having the corner 1b by the resin extruder 10 of FIG. FIG. 3 is a diagram showing a relationship between a pressure (B) of a resin material 8 in a resin supply pipe 17 and an extrusion amount (C) of a resin material 8 extruded from a nozzle opening 18 of a die 9. Here, the movement of the glass plate 1 is indicated by a rectangular waveform assuming that the movement and stop are performed instantaneously as shown in FIG.
【００１１】[0011]
【発明が解決しようとする課題】しかし、図５に示した
従来の樹脂押出装置１０においては、以下のような問題
を有していた。However, the conventional resin extruder 10 shown in FIG. 5 has the following problems.
【００１２】すなわち、ガラス板１の辺部１ａに樹脂材
料８を押出している状態からダイ９がコーナ部１ｂに来
たときに、三方弁２０を切替えて樹脂材料８のほとんど
を樹脂排出口１９に排出させ、ノズル開口１８から少量
の樹脂材料８を吐出させると、樹脂供給管１７内の圧力
が樹脂排出口１９に開放される。そのため、図６（Ｂ）
に示すように樹脂供給管１７内の圧力が急激に低下す
る。That is, when the die 9 comes to the corner 1b from the state in which the resin material 8 is pushed out to the side 1a of the glass plate 1, the three-way valve 20 is switched so that most of the resin material 8 is discharged to the resin outlet 19. When a small amount of the resin material 8 is discharged from the nozzle opening 18, the pressure in the resin supply pipe 17 is released to the resin discharge port 19. Therefore, FIG.
As shown in (1), the pressure in the resin supply pipe 17 drops rapidly.
【００１３】この結果、ふたたびガラス板１の辺部１ａ
に樹脂材料８を押し出すように三方弁２０を切替えた際
に、樹脂供給管１７内圧力が低くなっているために、樹
脂供給管１７内圧力が所定の圧力に復帰するまでに時間
が掛かる。このために、図６（Ｃ）に示すようにノズル
開口１８から辺部１ａに押出される初期の樹脂材料８の
押出量が少なくなって、辺部１ａに形成される樹脂部材
８’の厚さが所定の厚さにならない。樹脂部材８’がス
ペーサである場合、その厚さが所定の厚さでないと、２
枚のガラス板１の間隔を確実に保持できなくなる。その
結果、複層ガラスの剛性の低下や複層ガラスの中間層の
密閉性を劣化させる。As a result, the side portion 1a of the glass plate 1 is again
When the three-way valve 20 is switched such that the resin material 8 is pushed out, it takes time until the pressure in the resin supply pipe 17 returns to a predetermined pressure because the pressure in the resin supply pipe 17 is low. Therefore, as shown in FIG. 6C, the initial amount of the resin material 8 extruded from the nozzle opening 18 to the side 1a is reduced, and the thickness of the resin member 8 'formed on the side 1a is reduced. Does not reach the specified thickness. When the resin member 8 'is a spacer, if its thickness is not a predetermined thickness, 2
The interval between the glass plates 1 cannot be reliably maintained. As a result, the rigidity of the multilayer glass is reduced, and the sealing property of the intermediate layer of the multilayer glass is deteriorated.
【００１４】一方、コーナ部１ｂに樹脂材料８を押し出
す際には、余剰となった樹脂材料８を樹脂排出口１９か
ら排出させるようにしている。ダイ９は上下方向に移動
し、さらに回転するために、樹脂排出口１９から排出さ
れる樹脂材料８を回収することが困難であり、回収のた
めの装置の構成が複雑になる。On the other hand, when the resin material 8 is extruded into the corner 1b, the excess resin material 8 is discharged from the resin discharge port 19. Since the die 9 moves in the vertical direction and further rotates, it is difficult to recover the resin material 8 discharged from the resin discharge port 19, and the configuration of the recovery device becomes complicated.
【００１５】本発明は、樹脂材料の押出量を安定して変
化させることができ、かつ余剰の樹脂材料を容易に回収
することができるようにした樹脂押出装置および樹脂押
出成形方法を提供することを目的とする。An object of the present invention is to provide a resin extruder and a resin extrusion molding method capable of stably changing the amount of resin material to be extruded and easily collecting excess resin material. With the goal.
【００１６】[0016]
【課題を解決するための手段】本発明は、所定の開口形
状を有するノズル開口とノズル開口に連通する流量調整
バルブとを備えて樹脂材料を所定の断面形状で押し出す
ダイと、ダイに樹脂材料を供給する押出機と、ダイに向
けて樹脂材料を供給する押出機の吐出口直近位置に接続
配置された切替ブロックとを有し、切替えブロックに樹
脂供給口と樹脂排出口とに切替可能な切替バルブが内蔵
されていて、切替ブロックの樹脂供給口とダイとが樹脂
供給管を介して接続されている樹脂押出装置、を提供す
る。According to the present invention, there is provided a die for extruding a resin material in a predetermined cross-sectional shape with a nozzle opening having a predetermined opening shape and a flow control valve communicating with the nozzle opening, and a resin material for the die. And a switching block connected to the extruder that feeds the resin material toward the die, and a switching block that is connected to and located in the immediate vicinity of the discharge port. The switching block can be switched between the resin supply port and the resin discharge port. Provided is a resin extruder in which a switching valve is built in and a resin supply port of a switching block and a die are connected via a resin supply pipe.
【００１７】上記樹脂押出装置において、切替バルブ
を、（１）樹脂供給口と樹脂排出口とへの樹脂材料の供
給量が調節可能な三方弁とする構成、（２）切替ブロッ
クの樹脂排出口に均圧調整バルブを備える構成、さらに
はこれらの構成（１）（２）の両者を合わせ持つ構成、
を採用することは好ましい。In the above resin extruding apparatus, the switching valve is (1) a three-way valve capable of adjusting the amount of resin material supplied to the resin supply port and the resin discharge port, and (2) the resin discharge port of the switching block. A configuration having an equalizing pressure adjusting valve, a configuration having both of these configurations (1) and (2),
It is preferable to employ
【００１８】また、本発明は、所定の開口形状を有する
ノズル開口とノズル開口に連通する流量調整バルブとを
備えて樹脂材料を所定の断面形状で押し出すダイと、ダ
イに樹脂材料を供給する押出機と、ダイに向けて樹脂材
料を供給する押出機の吐出口直近位置に接続配置された
切替ブロックとを有し、切替えブロックに樹脂供給口と
樹脂排出口とに切替可能な切替バルブが内蔵されてい
て、切替ブロックの樹脂供給口とダイとが樹脂供給管を
介して接続されている樹脂押出装置を用いて、ダイと、
概略直線部およびコーナ部を有する板状体の周縁とを相
対移動させながら、ダイの所定の断面形状を有するノズ
ル開口から樹脂材料を押出してノズル開口に概略一致す
る断面形状を有する樹脂部材を板状体の周縁に成形する
方法であって、板状体周縁の概略直線部に樹脂材料を押
し出す際には、流量調整バルブを開くとともに樹脂供給
口から樹脂材料が押出されるように切替バルブを切替
え、板状体のコーナ部に樹脂材料を押し出す際には、流
量調整バルブの開度を絞るとともに、樹脂排出口に樹脂
材料が排出されるように切替バルブを切替えることを特
徴とする樹脂押出成形方法、を提供する。According to another aspect of the present invention, there is provided a die having a nozzle opening having a predetermined opening shape and a flow control valve communicating with the nozzle opening, for extruding the resin material in a predetermined sectional shape, and an extrusion for supplying the resin material to the die. And a switching block connected to the extruder that feeds the resin material to the die. The switching block has a built-in switching valve that can switch between the resin supply port and the resin discharge port. Using a resin extrusion device in which the resin supply port of the switching block and the die are connected via a resin supply pipe,
A resin material having a cross-sectional shape substantially coinciding with the nozzle opening is extruded by extruding a resin material from a nozzle opening having a predetermined cross-sectional shape of the die while relatively moving the periphery of the plate-like body having the substantially straight portion and the corner portion. This is a method of molding on the periphery of the plate-shaped body, and when extruding the resin material into a substantially linear portion of the periphery of the plate-shaped body, open the flow rate adjustment valve and set the switching valve so that the resin material is extruded from the resin supply port. When the resin material is extruded into the corners of the plate-like body during switching, the opening of the flow control valve is reduced and the switching valve is switched so that the resin material is discharged to the resin discharge port. Molding method.
【００１９】上記樹脂押出成形方法において、（１）流
量調整バルブと切替バルブの作動は連動させる、（２）
板状体のコーナ部に樹脂材料を押し出す際に、切替バル
ブにより小流量に調節された樹脂材料を樹脂供給口に供
給する、（３）板状体のコーナ部に樹脂材料を押し出す
際に、樹脂排出口に排出される樹脂材料の圧力が押出機
の吐出圧とほぼ等しくなるように、樹脂排出口に排出さ
れる樹脂材料に圧力損失を与える、さらにはこれらの手
法（１）〜（３）の複数を採用することは好ましい。In the above resin extrusion molding method, (1) the operation of the flow control valve and the operation of the switching valve are linked, (2)
When the resin material is extruded into the corner of the plate, the resin material adjusted to a small flow rate by the switching valve is supplied to the resin supply port. (3) When the resin material is extruded into the corner of the plate, A pressure loss is applied to the resin material discharged to the resin outlet so that the pressure of the resin material discharged to the resin outlet is substantially equal to the discharge pressure of the extruder. Further, these methods (1) to (3) It is preferable to employ a plurality of the above.
【００２０】[0020]
【発明の実施の形態】以下、添付図面に従って、本発明
の樹脂押出装置および樹脂押出成形方法の好ましい実施
の形態を説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a resin extrusion apparatus and a resin extrusion molding method according to the present invention will be described below with reference to the accompanying drawings.
【００２１】図１は、本発明の樹脂押出装置の一例を示
す断面図であり、複層ガラスの樹脂製スペーサの成形に
とくに適した樹脂押出装置を示す。なお、図１におい
て、図５と同位置の部分には同一の符号を付している。
樹脂押出装置１０は、樹脂材料を所定の断面形状で押し
出すダイ３１とダイ３１に樹脂材料を供給する押出機１
３とを備えている。押出機１３の樹脂材料を吐出する吐
出口１６の直近位置には、切替ブロック２５が接続配置
されていて、切替ブロック２５はダイ３１と押出機１３
との間に介在配置される。FIG. 1 is a cross-sectional view showing an example of the resin extruding apparatus of the present invention, and shows a resin extruding apparatus which is particularly suitable for forming a resin spacer made of a double-layer glass. Note that, in FIG. 1, the same reference numerals are given to portions at the same positions as those in FIG.
The resin extruder 10 includes a die 31 for extruding a resin material in a predetermined cross-sectional shape, and an extruder 1 for supplying the resin material to the die 31.
3 is provided. A switching block 25 is connected to the extruder 13 at a position immediately adjacent to the discharge port 16 for discharging the resin material, and the switching block 25 is connected to the die 31 and the extruder 13.
And interposed between them.
【００２２】切替ブロック２５には、ダイ３１に向けて
樹脂材料８を供給する樹脂供給口２２と装置外へ樹脂材
料８を排出する樹脂排出口２３とに樹脂材料８を切替え
て流すことができる切替バルブ２４が内蔵されている。
なお、図１では、切替ブロック２５を短い接続管２６に
よって押出機１３の吐出口１６に接続した場合を示して
いるが、切替ブロック２５を押出機１３の吐出口１６に
一体に固定するようにしてもよい。In the switching block 25, the resin material 8 can be switched and supplied to a resin supply port 22 for supplying the resin material 8 toward the die 31 and a resin discharge port 23 for discharging the resin material 8 out of the apparatus. The switching valve 24 is built in.
Although FIG. 1 shows a case where the switching block 25 is connected to the discharge port 16 of the extruder 13 by a short connection pipe 26, the switching block 25 is fixed integrally to the discharge port 16 of the extruder 13. You may.
【００２３】切替バルブ２４には、樹脂供給口２２と樹
脂排出口２３とへの樹脂材料８の供給量を微調節できる
ようにした三方弁を用いることができ、切替バルブ２４
は切替用モータ２７によって切替えできる。As the switching valve 24, a three-way valve capable of finely adjusting the supply amount of the resin material 8 to the resin supply port 22 and the resin discharge port 23 can be used.
Can be switched by the switching motor 27.
【００２４】切替バルブ２４の樹脂排出口２３には、均
圧調整バルブ２８が備えられている。均圧調整バルブ２
８は、樹脂排出口２３から樹脂材料８を排出する際に、
押出機１３の吐出口１６から接続管２６に吐出される樹
脂材料８の圧力が低下するのを防止する。さらに、切替
ブロック２５の樹脂排出口２３の下部位置には、排出さ
れた樹脂材料８を受ける容器２９が設けられている。An equalizing pressure adjusting valve 28 is provided at the resin outlet 23 of the switching valve 24. Equalizing pressure adjustment valve 2
8 discharges the resin material 8 from the resin discharge port 23,
The pressure of the resin material 8 discharged from the discharge port 16 of the extruder 13 to the connection pipe 26 is prevented from lowering. Further, a container 29 for receiving the discharged resin material 8 is provided at a position below the resin discharge port 23 of the switching block 25.
【００２５】切替ブロック２５の樹脂供給口２２には、
樹脂供給管３０を介してダイ３１が接続されている。ダ
イ３１には、樹脂供給管３０から供給されてくる樹脂材
料８の流量を調節してノズル開口３２に押し出すように
した流量調整バルブ３３が内蔵されている。流量調整バ
ルブ３３は、調節モータ３４によって自動的に流量調節
ができるようになっている。さらに、切替用モータ２７
と調節モータ３４とは同期して運転できる。In the resin supply port 22 of the switching block 25,
A die 31 is connected via a resin supply pipe 30. The die 31 has a built-in flow rate adjusting valve 33 that adjusts the flow rate of the resin material 8 supplied from the resin supply pipe 30 and pushes the resin material 8 to the nozzle opening 32. The flow rate adjusting valve 33 can automatically adjust the flow rate by an adjusting motor 34. Further, the switching motor 27
And the adjusting motor 34 can be operated synchronously.
【００２６】次に、図１の樹脂押出装置１０を用いて、
ガラス板１の周縁に対して樹脂部材を押出成形する方法
について説明する。Next, using the resin extruder 10 shown in FIG.
A method of extruding a resin member on the periphery of the glass plate 1 will be described.
【００２７】ガラス板１の周縁における辺部１ａなどの
概略直線部に樹脂材料８を押し出す際には、流量調整バ
ルブ３３を開くとともに、樹脂供給口２２から樹脂材料
８が吐出されるように切替バルブ２４を切替える。する
と、押出機１３の吐出口１６から吐出される樹脂材料８
は、接続管２６、切替ブロック２５の樹脂供給口２２、
樹脂供給管３０を介して、ダイ３１のノズル開口３２か
ら押出される。このとき、ガラス板１とダイ９とを相対
移動させると、ガラス板１の辺部１ａに一定量の樹脂材
料が押出される。When extruding the resin material 8 into a substantially linear portion such as the side portion 1a on the periphery of the glass plate 1, the flow rate control valve 33 is opened and the resin material 8 is switched so as to be discharged from the resin supply port 22. The valve 24 is switched. Then, the resin material 8 discharged from the discharge port 16 of the extruder 13
Are the connection pipe 26, the resin supply port 22 of the switching block 25,
It is extruded from the nozzle opening 32 of the die 31 via the resin supply pipe 30. At this time, when the glass plate 1 and the die 9 are relatively moved, a certain amount of resin material is extruded to the side 1a of the glass plate 1.
【００２８】続いて、ガラス板１のコーナ部１ｂに樹脂
材料８を押し出す際には、流量調整バルブ３３の開度を
絞るとともに、樹脂排出口２３に樹脂材料８が排出され
るように切替バルブ２４を切替える。このとき、流量調
整バルブ３３の絞り開度と同程度の開度になるように切
替バルブ２４の樹脂供給口２２に対する開度を微調整す
る。したがって、流量調整バルブ３３と切替バルブ２４
とは同期して作動されることが好ましい。Subsequently, when the resin material 8 is extruded into the corner portion 1b of the glass plate 1, the opening of the flow control valve 33 is reduced, and the switching valve is set so that the resin material 8 is discharged to the resin discharge port 23. Switch 24. At this time, the opening of the switching valve 24 with respect to the resin supply port 22 is finely adjusted so that the opening of the flow control valve 33 is substantially equal to the opening of the throttle. Therefore, the flow control valve 33 and the switching valve 24
It is preferably operated in synchronization with.
【００２９】上記したように、たとえば流量調整バルブ
３３と切替バルブ２４とが均一の微小開度になるように
調整されると、樹脂供給管３０内の圧力は図２（Ｂ）に
示すように押出機１３の吐出口１６からの吐出圧とほぼ
同等の一定圧力に保持される。As described above, for example, when the flow rate adjusting valve 33 and the switching valve 24 are adjusted to have a uniform minute opening, the pressure in the resin supply pipe 30 becomes as shown in FIG. The pressure is maintained at a constant pressure substantially equal to the discharge pressure from the discharge port 16 of the extruder 13.
【００３０】またこのとき、切替ブロック２５の樹脂排
出口２３に、圧力損失を与える均圧調整バルブ２８を設
けて、押出機１３からの吐出圧が常時接続管２６内に保
持されるようにしているので、前記したように樹脂排出
口２３から樹脂材料８を排出しても、樹脂供給管３０と
同様に接続管２６内の圧力が低下することはない。At this time, an equalizing pressure adjusting valve 28 for providing a pressure loss is provided at the resin discharge port 23 of the switching block 25 so that the discharge pressure from the extruder 13 is always held in the connection pipe 26. Therefore, even if the resin material 8 is discharged from the resin discharge port 23 as described above, the pressure in the connection pipe 26 does not decrease similarly to the resin supply pipe 30.
【００３１】このとき、均圧調整バルブ２８の絞りの設
定はあらかじめ実施しておくようにする。たとえば、接
続管２６に設けた圧力計３５の指示圧力に基づいて、樹
脂排出口２３に樹脂材料８を排出した際に接続管２６内
の圧力が低下しないように、手動で絞り量を設定してお
く。At this time, the setting of the throttle of the equalizing pressure adjusting valve 28 is performed in advance. For example, based on the pressure indicated by the pressure gauge 35 provided in the connection pipe 26, the throttle amount is manually set so that the pressure in the connection pipe 26 does not decrease when the resin material 8 is discharged to the resin discharge port 23. Keep it.
【００３２】図２（Ａ）に示すように、ガラス板とダイ
との相対移動速度を、高速移動と低速移動（停止を含
む）とによりガラス板の辺部とコーナ部とに樹脂材料を
押し出す際において、樹脂排出口２３から樹脂材料８を
排出しても図２（Ｂ）に示すように樹脂供給管３０内の
樹脂材料８の圧力が低下することがなく、つねに一定の
圧力を保持できる。さらに、接続管２６内の圧力も均圧
調整バルブ２８によって押出機１３の吐出圧が保持され
るので、流量調整バルブ３３と切替バルブ２４とを作動
して樹脂材料８の押出しを調節する際に、図２（Ｃ）に
示すように、ノズル開口１８から計画量の樹脂材料８を
安定して押し出すことができ、所定の肉厚の樹脂部材を
成形できる。As shown in FIG. 2 (A), the resin material is extruded to the sides and corners of the glass plate by moving the glass plate and the die at a high speed and a low speed (including stopping). In this case, even if the resin material 8 is discharged from the resin discharge port 23, the pressure of the resin material 8 in the resin supply pipe 30 does not decrease as shown in FIG. . Further, the pressure in the connecting pipe 26 is also maintained at the discharge pressure of the extruder 13 by the equalizing pressure adjusting valve 28. Therefore, when the flow rate adjusting valve 33 and the switching valve 24 are operated to adjust the extrusion of the resin material 8, As shown in FIG. 2C, a planned amount of the resin material 8 can be stably extruded from the nozzle opening 18, and a resin member having a predetermined thickness can be formed.
【００３３】さらに、押出機１３の吐出口１６の直近位
置に、樹脂排出口２３を有する切替ブロック２５を接続
配置した構成としているので、コーナ部１ｂに樹脂材料
８を押し出す際のように余剰の樹脂材料８を排出する際
に、固定でかつ押出機１３に近い切替ブロック２５から
排出できる。よって、余剰の樹脂材料８の回収を容器２
９などの簡単な構成にて容易、確実に実施できる。Further, since the switching block 25 having the resin discharge port 23 is connected and disposed at a position immediately adjacent to the discharge port 16 of the extruder 13, an excessive amount of resin material 8 is extruded into the corner 1b. When discharging the resin material 8, the resin material 8 can be discharged from the switching block 25 which is fixed and close to the extruder 13. Therefore, collection of the excess resin material 8 is performed in the container 2.
9 can be easily and reliably implemented.
【００３４】なお、本発明は、上記した実施の形態例に
のみ限定されるものではなく、単層あるいは複層の矩形
のガラス板以外に、台形あるいは他の多角形あるいは曲
線の周縁部を有するガラス板などの辺部とコーナ部に連
続した樹脂部材を成形する場合にも適用できる。また、
ダイとガラス板との相対移動は、ダイを動かしてもガラ
ス板を動かしても、さらには両者を交互にあるいは同時
に動かしてもよい。樹脂部材が成形される板状体として
は、ガラス板以外にも、透明樹脂板などの種々の板状体
があげられる。樹脂部材としては、板状体に一体化され
る各種の樹脂部材がある。たとえば、先にあげた複層ガ
ラスの樹脂製スペーサ、複層ガラスの二次シール材、自
動車窓ガラス用のモールディングやガスケット（モール
と総称する）などがあげられる。このうち、複層ガラス
の樹脂製スペーサや自動車窓ガラス用のモールは、所定
の形状精度が製品性能を左右するので、これらの樹脂部
材の成形に本発明の樹脂成形装置、方法を適用すること
は好ましい。複層ガラスのスペーサの肉厚を所定のもの
にすることは、複層ガラスの剛性低下や中間層の密閉性
の劣化を効果的に防止できる。したがって、複層ガラス
のスペーサの成形に本発明の樹脂成形装置、方法を適用
することはとくに好ましい。また、自動車窓ガラス用の
モールとして、部位に応じてモール断面の形状を変える
ような場合、ノズル開口の形状を板状体の周縁とダイと
の相対移動に応じて変化させることがある。ノズル開口
の形状を変化させると、この変化に応じて樹脂材料の押
出量も変化させる。このようなモールを成形する場合に
も、ノズル開口の形状変化に応答性よく樹脂材料の吐出
量を変化させることができるので、本発明の樹脂成形装
置、方法を適用することは好ましい。The present invention is not limited to the above-described embodiment, but has a trapezoidal or other polygonal or curved peripheral portion in addition to a single-layer or multiple-layer rectangular glass plate. The present invention can also be applied to a case where a resin member continuous with a side portion such as a glass plate and a corner portion is formed. Also,
The relative movement between the die and the glass plate may be performed by moving the die, the glass plate, or both of them alternately or simultaneously. Examples of the plate-like body on which the resin member is molded include various plate-like bodies such as a transparent resin plate other than the glass plate. As the resin member, there are various resin members integrated with the plate-shaped body. For example, the above-mentioned resin-made spacer of double-glazed glass, a secondary sealing material of double-glazed glass, molding and gaskets for automobile window glass (collectively referred to as moldings), and the like. Among them, the resin spacer of the double-layer glass and the molding for automobile window glass have a predetermined shape accuracy which affects the product performance. Therefore, the resin molding apparatus and method of the present invention are applied to the molding of these resin members. Is preferred. By setting the thickness of the spacer of the double-glazed glass to a predetermined value, it is possible to effectively prevent a decrease in rigidity of the double-glazed glass and a deterioration in the sealing property of the intermediate layer. Therefore, it is particularly preferable to apply the resin molding apparatus and method of the present invention to the molding of a double-glazed spacer. Further, when the shape of the cross section of the molding is changed according to the part as a molding for an automobile window glass, the shape of the nozzle opening may be changed according to the relative movement between the periphery of the plate-like body and the die. When the shape of the nozzle opening is changed, the extrusion amount of the resin material is also changed according to the change. Even when molding such a molding, it is preferable to apply the resin molding apparatus and method of the present invention since the discharge amount of the resin material can be changed with high response to the change in the shape of the nozzle opening.
【００３５】[0035]
【発明の効果】以上説明したように、本発明によれば、
押出機の吐出口直近位置に、樹脂供給口と樹脂排出口と
に切替可能な切替バルブを内蔵した切替ブロックを接続
し、該切替ブロックの樹脂供給口に、ノズル開口に連通
する流量調整バルブが内蔵されたダイを樹脂供給管によ
り接続した構成を有しているので、樹脂排出口から樹脂
材料を排出する際に樹脂供給管内の圧力の低下を防止し
て、つねに一定の圧力を保持できる。さらに、樹脂排出
口に均圧調整バルブを備えて圧力損失を与えることよっ
て、押出機と切替ブロックとの間の圧力の低下も防止で
きる。したがって、流量調整バルブと切替バルブとを作
動してノズル開口から樹脂材料を押し出す際に、ノズル
開口より計画量の樹脂材料を安定して押し出すことがで
き、所定の肉厚の樹脂部材を成形できる効果がある。As described above, according to the present invention,
A switching block having a built-in switching valve that can switch between a resin supply port and a resin discharge port is connected to a position immediately adjacent to the discharge port of the extruder, and the resin supply port of the switching block has a flow control valve communicating with the nozzle opening. Since it has a configuration in which the built-in dies are connected by the resin supply pipe, it is possible to prevent a decrease in pressure in the resin supply pipe when discharging the resin material from the resin discharge port, and to always maintain a constant pressure. Further, by providing the pressure loss by providing the pressure equalizing valve at the resin discharge port, it is possible to prevent a decrease in pressure between the extruder and the switching block. Accordingly, when the resin material is extruded from the nozzle opening by operating the flow rate adjusting valve and the switching valve, a planned amount of the resin material can be extruded stably from the nozzle opening, and a resin member having a predetermined thickness can be formed. effective.
【００３６】さらに、押出機の吐出口直近位置に、樹脂
排出口を有する切替ブロックを接続した構成としている
ので、樹脂材料を排出する際に、固定でかつ押出機に近
い切替ブロックから排出でき、余剰の樹脂材料の回収を
簡単な構成にて容易、確実に実施できるという効果があ
る。Further, since a switching block having a resin discharge port is connected to a position immediately adjacent to the discharge port of the extruder, the resin material can be discharged from a fixed and close to the extruder when discharging the resin material. There is an effect that the recovery of the surplus resin material can be easily and reliably performed with a simple configuration.
【図１】本発明の樹脂押出装置の一例を示す断面図であ
る。FIG. 1 is a cross-sectional view showing one example of a resin extrusion device of the present invention.
【図２】本発明の樹脂押出装置に係る、ガラス板とダイ
との相対移動速度（Ａ）と、樹脂供給管内の圧力（Ｂ）
と、ノズル開口の押出量（Ｃ）との関係を示す線図であ
る。FIG. 2 shows the relative movement speed (A) between the glass plate and the die and the pressure (B) in the resin supply pipe according to the resin extrusion apparatus of the present invention.
FIG. 4 is a diagram showing the relationship between the nozzle opening and the extrusion amount (C) of the nozzle opening.
【図３】ガラス板に樹脂部材を成形する従来の装置の一
例を示す側面図である。FIG. 3 is a side view showing an example of a conventional apparatus for molding a resin member on a glass plate.
【図４】ガラス板に樹脂部材を成形する状態の一例を示
す平面図である。FIG. 4 is a plan view showing an example of a state in which a resin member is molded on a glass plate.
【図５】従来の樹脂押出装置の一例を示す断面図であ
る。FIG. 5 is a sectional view showing an example of a conventional resin extrusion device.
【図６】従来の樹脂押出装置における、ガラス板とダイ
との相対移動速度（Ａ）と、樹脂供給管内の圧力（Ｂ）
と、ノズル開口の押出量（Ｃ）との関係を示す線図であ
る。FIG. 6 shows the relative moving speed (A) between the glass plate and the die and the pressure (B) in the resin supply pipe in the conventional resin extruder.
FIG. 4 is a diagram showing the relationship between the nozzle opening and the extrusion amount (C) of the nozzle opening.
１３ 押出機 １６ 吐出口 ２２ 樹脂供給口 ２３ 樹脂排出口 ２４ 切替バルブ ２５ 切替ブロック ２８ 均圧調整バルブ ３０ 樹脂供給管 ３１ ダイ ３２ ノズル開口 ３３ 流量調整バルブ 13 Extruder 16 Discharge port 22 Resin supply port 23 Resin discharge port 24 Switching valve 25 Switching block 28 Equalizing pressure adjustment valve 30 Resin supply pipe 31 Die 32 Nozzle opening 33 Flow rate adjustment valve
───────────────────────────────────────────────────── フロントページの続き (72)発明者 伊藤 昌男 神奈川県横浜市鶴見区末広町１丁目１番地 旭硝子株式会社内 Ｆターム(参考） 4F207 AD04 AD08 AD35 AG02 KA01 KA17 KB18 KL57 KL92 KL93 4G061 AA13 AA18 BA01 BA02 CB02 CB16 CD02 CD22 CD25 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Masao Ito 1-1-1 Suehirocho, Tsurumi-ku, Yokohama-shi, Kanagawa Prefecture F-term in Asahi Glass Co., Ltd. 4F207 AD04 AD08 AD35 AG02 KA01 KA17 KB18 KL57 KL92 KL93 4G061 AA13 AA18 BA01 BA02 CB02 CB16 CD02 CD22 CD25
Claims (3)
ズル開口に連通する流量調整バルブとを備えて樹脂材料
を所定の断面形状で押し出すダイと、ダイに樹脂材料を
供給する押出機と、ダイに向けて樹脂材料を供給する押
出機の吐出口直近位置に接続配置された切替ブロックと
を有し、切替えブロックに樹脂供給口と樹脂排出口とに
切替可能な切替バルブが内蔵されていて、切替ブロック
の樹脂供給口とダイとが樹脂供給管を介して接続されて
いる樹脂押出装置。1. A die for extruding a resin material in a predetermined cross-sectional shape with a nozzle opening having a predetermined opening shape and a flow control valve communicating with the nozzle opening, an extruder for supplying the resin material to the die, and a die. A switching block connected and disposed at a position immediately adjacent to the discharge port of the extruder that supplies the resin material toward the switching block, and the switching block has a built-in switching valve that can switch between a resin supply port and a resin discharge port; A resin extruder in which a resin supply port of a switching block and a die are connected via a resin supply pipe.
ズル開口に連通する流量調整バルブとを備えて樹脂材料
を所定の断面形状で押し出すダイと、ダイに樹脂材料を
供給する押出機と、ダイに向けて樹脂材料を供給する押
出機の吐出口直近位置に接続配置された切替ブロックと
を有し、切替えブロックに樹脂供給口と樹脂排出口とに
切替可能な切替バルブが内蔵されていて、切替ブロック
の樹脂供給口とダイとが樹脂供給管を介して接続されて
いる樹脂押出装置を用いて、ダイと、概略直線部および
コーナ部を有する板状体の周縁とを相対移動させなが
ら、ダイの所定の断面形状を有するノズル開口から樹脂
材料を押出してノズル開口に概略一致する断面形状を有
する樹脂部材を板状体の周縁に成形する方法であって、
板状体周縁の概略直線部に樹脂材料を押し出す際には、
流量調整バルブを開くとともに樹脂供給口から樹脂材料
が押出されるように切替バルブを切替え、板状体のコー
ナ部に樹脂材料を押し出す際には、流量調整バルブの開
度を絞るとともに、樹脂排出口に樹脂材料が排出される
ように切替バルブを切替えることを特徴とする樹脂押出
成形方法。2. A die for extruding a resin material with a predetermined cross-sectional shape, comprising a nozzle opening having a predetermined opening shape and a flow control valve communicating with the nozzle opening, an extruder for supplying the resin material to the die, and a die. A switching block connected and disposed at a position immediately adjacent to the discharge port of the extruder that supplies the resin material toward the switching block, and the switching block has a built-in switching valve that can switch between a resin supply port and a resin discharge port; Using a resin extruder in which the resin supply port of the switching block and the die are connected via a resin supply pipe, while relatively moving the die and the peripheral edge of the plate-like body having the substantially linear portion and the corner portion, A method of extruding a resin material from a nozzle opening having a predetermined cross-sectional shape of a die and forming a resin member having a cross-sectional shape substantially corresponding to the nozzle opening on a peripheral edge of the plate-like body,
When extruding a resin material into a roughly linear portion of the periphery of the plate-like body,
Open the flow control valve and switch the switching valve so that the resin material is extruded from the resin supply port.When pushing the resin material into the corners of the plate-like body, narrow the opening of the flow control valve and remove the resin. A resin extrusion molding method characterized by switching a switching valve so that a resin material is discharged to an outlet.
離隔保持してダイと板状体の周縁とを相対移動させなが
ら複数の板状体の間における周縁に樹脂材料を押し出し
て、複数の板状体の間における周縁に樹脂製のスペーサ
を成形することを特徴とする請求項２記載の樹脂押出成
形方法。3. A resin material is extruded to the periphery between the plurality of plate-like bodies while holding the plurality of plate-like bodies at predetermined intervals and relatively moving the die and the periphery of the plate-like body. 3. The resin extrusion molding method according to claim 2, wherein a resin spacer is formed on a peripheral edge between the plurality of plate-like bodies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11050790A JP2000246780A (en) | 1999-02-26 | 1999-02-26 | Resin extruder, and resin extrusion-molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11050790A JP2000246780A (en) | 1999-02-26 | 1999-02-26 | Resin extruder, and resin extrusion-molding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000246780A true JP2000246780A (en) | 2000-09-12 |
Family
ID=12868613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11050790A Pending JP2000246780A (en) | 1999-02-26 | 1999-02-26 | Resin extruder, and resin extrusion-molding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000246780A (en) |
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