JPS6329545Y2 - - Google Patents
Info
- Publication number
- JPS6329545Y2 JPS6329545Y2 JP5735183U JP5735183U JPS6329545Y2 JP S6329545 Y2 JPS6329545 Y2 JP S6329545Y2 JP 5735183 U JP5735183 U JP 5735183U JP 5735183 U JP5735183 U JP 5735183U JP S6329545 Y2 JPS6329545 Y2 JP S6329545Y2
- Authority
- JP
- Japan
- Prior art keywords
- raw material
- piston
- magnetic
- filling device
- piston head
- 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
Links
- 239000002994 raw material Substances 0.000 claims description 37
- 238000001514 detection method Methods 0.000 claims description 25
- 239000000696 magnetic material Substances 0.000 claims description 19
- 238000010097 foam moulding Methods 0.000 claims description 6
- 239000002245 particle Substances 0.000 description 6
- 238000000465 moulding Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
Landscapes
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Description
【考案の詳細な説明】
この考案は発泡成形装置の原料充填器に関する
ものであり、原料充填の確認手段を設置すること
により成形操作を確実に行なえるようにしたもの
である。[Detailed Description of the Invention] This invention relates to a raw material filling device for a foam molding apparatus, and is designed to ensure that the molding operation can be carried out reliably by installing means for checking the filling of the raw material.
従来より、成形型の型窩内へ発泡性熱可塑性樹
脂粒子による原料を充填し、これを加熱膨脹させ
て発泡成形品を得る装置において、原料粒子の型
窩内への充填方法としては、成形型へ通ずる原料
充填器に原料ホツパからの原料粒子を供給し、次
いで該原料充填器に導入されるブースト用エアー
と共に原料粒子を型窩内へ圧送する方法が採用さ
れている。 Conventionally, in an apparatus for obtaining a foam molded product by filling the cavity of a mold with a raw material consisting of expandable thermoplastic resin particles and heating and expanding the raw material, the method for filling the cavity with raw material particles into the cavity is molding. A method is adopted in which raw material particles are supplied from a raw material hopper to a raw material filling device that communicates with the mold, and then the raw material particles are pumped into the mold cavity together with boosting air introduced into the raw material filling device.
そして、上記の原料充填器としてはシリンダが
通常使用されており、型窩内への原料充填が終了
し、シリンダ内のピストンが前進して成形型の原
料流入口となる部分がピストンによつて閉鎖さ
れ、次いで蒸気を成形型に供給することによつて
加熱膨脹を行わせることとしていた。 A cylinder is usually used as the above-mentioned raw material filling device, and after the filling of the raw material into the mold cavity is completed, the piston inside the cylinder moves forward and the part that becomes the raw material inlet of the mold is moved by the piston. The mold was closed and then heated and expanded by supplying steam to the mold.
ところが、従来の装置にはピストンの前進、後
退時の位置が検知できる機構が設けられていない
ため、ピストンが所定位置に到達していない原料
充填未完了のときでも型窩内に蒸気が供給されて
充填不良に伴う不良品が製造されてしまうおそれ
があり、ピストンの前進、後退時の位置を検知し
得る機構が要望されていた。 However, because conventional devices are not equipped with a mechanism that can detect the forward and backward positions of the piston, steam is not supplied into the mold cavity even when the piston has not yet reached the specified position and filling of the raw material has not yet been completed. Therefore, there is a need for a mechanism that can detect the forward and backward positions of the piston, as there is a risk that defective products may be manufactured due to incomplete filling.
そこで、この考案においては原料充填器の改善
によつて従来装置の不都合を解消しようとしたも
のであり、その構成としては発泡成形装置の原料
充填器において、該原料充填器の筒体内を移動す
るピストンのうちピストンヘツドの少なくとも一
部を磁性体又は磁気体とし、筒体を非磁性体と
し、そして筒体のピストンヘツド前進及び後退位
置の少なくとも一方には磁性体又は磁気体に対す
る検出機構を設けたことを特徴とするものであ
る。 Therefore, in this invention, an attempt was made to solve the disadvantages of the conventional equipment by improving the raw material filling device.As for its configuration, in the raw material filling device of a foam molding device, the material is moved inside the cylinder of the material filling device. At least a part of the piston head of the piston is made of a magnetic material or a magnetic material, the cylindrical body is made of a non-magnetic material, and at least one of the forward and backward positions of the piston head of the cylindrical body is provided with a magnetic material or a detection mechanism for the magnetic material. It is characterized by:
次いで、この考案の実施態様について図を参照
しながら以下に例示する。 Next, embodiments of this invention will be illustrated below with reference to the drawings.
１はこの考案に係る原料充填器を表わしてお
り、１１は原料充填器１の筒体であつて非磁性体
によつて構成されている。 Reference numeral 1 represents a raw material filling device according to this invention, and 11 is a cylindrical body of the material filling device 1, which is made of a non-magnetic material.
筒体１１の側面には原料供給口１２及び空気流
入口１３が設けられている。原料供給口１２は原
料となる発泡粒子が貯留されている原料ホツパ
（図示せず）と送粒ホース等にて接続されており、
筒体１１内に供給された原料は原料充填器１の前
方に設けられている成形型２の型窩（図示せず）
内へ圧入される。 A raw material supply port 12 and an air inflow port 13 are provided on the side surface of the cylindrical body 11 . The raw material supply port 12 is connected to a raw material hopper (not shown) in which foamed particles serving as a raw material are stored through a granulation hose or the like.
The raw material supplied into the cylinder 11 is transferred to the mold cavity (not shown) of the mold 2 provided in front of the raw material filling device 1.
Press-fitted inside.
上記の非磁性体による筒体１１の内部にはピス
トン１４が設けられており、該ピストン１４の後
端部にはボルト１４ｂにてピストンヘツド１４ａ
が取付けられている。このピストンヘツド１４ａ
は筒体１１の内径と略同寸法となつており、この
ピストンヘツド１４ａの少なくとも一部について
は、鉄、ステンレスその他の磁性体にて構成され
ている。即ち、ピストンヘツド１４ａは、全体が
磁性体である場合のほかに、筒体１１の内面或は
後述する検出スイツチ１１ａ，１１ｂと対応する
部分のみを磁性体とし他の部分は非磁性体とする
ようにしてもよい。 A piston 14 is provided inside the cylindrical body 11 made of a non-magnetic material, and a piston head 14a is connected to the rear end of the piston 14 by a bolt 14b.
is installed. This piston head 14a
The piston head 14a has approximately the same size as the inner diameter of the cylinder 11, and at least a portion of the piston head 14a is made of iron, stainless steel, or other magnetic material. That is, in addition to the case where the piston head 14a is entirely made of magnetic material, only the inner surface of the cylinder 11 or the portion corresponding to the detection switches 11a and 11b to be described later is made of magnetic material, and the other portion is made of non-magnetic material. You can do it like this.
そしてピストン１４は、筒体１１の側面に設け
られている空気流入口１３，１３′からの空気に
よつて前進及び後退運動が行われる。 The piston 14 is moved forward and backward by air from air inlets 13 and 13' provided on the side surface of the cylinder 11.
筒体１１の側面にあつて原料供給口１２よりも
後部側には、ピストンヘツドに対する位置の検出
機構として２個の検出スイツチ１１ａ，１１ｂが
取り付けられている。これら検出スイツチ１１
ａ，１１ｂのうちで前者の検出スイツチ１１ａの
取付位置は、ピストン１４が前進したとき、即ち
ピストン１４の先端面が原料充填器１と成形型２
との接合部１５に到達したときのピストンヘツド
１４ａの位置とし、後者の検出スイツチ１１ｂの
取付位置は、ピストン１４が所定距離だけ後退し
たときのピストンヘツド１４ａの位置とする。 Two detection switches 11a and 11b are attached to the side surface of the cylinder 11 on the rear side of the raw material supply port 12 as a position detection mechanism with respect to the piston head. These detection switches 11
The mounting position of the former detection switch 11a between a and 11b is when the piston 14 moves forward, that is, the tip end surface of the piston 14 is located between the raw material filler 1 and the mold 2.
The position of the piston head 14a when the piston 14 reaches the joint 15 with the piston 14 is assumed to be the position of the piston head 14a when the piston 14 has moved back a predetermined distance.
従つて、原料ホツパ（図示せず）から成形型２
の型窩内への発泡粒子による原料の供給が完了し
たときにはピストン１４が所定距離を前進し、ピ
ストンヘツド１４ａが検出スイツチ１１ａの取付
箇所に位置する。次に、成形型で所定の成形作業
が完了したときにはピストン１４が後退し、ピス
トンヘツド１４ａが検出スイツチ１１ｂの取付箇
所に位置する。 Therefore, from the raw material hopper (not shown) to the mold 2
When the supply of raw material by foamed particles into the mold cavity is completed, the piston 14 moves forward a predetermined distance, and the piston head 14a is located at the attachment point of the detection switch 11a. Next, when a predetermined molding operation is completed with the mold, the piston 14 retreats, and the piston head 14a is located at the location where the detection switch 11b is attached.
上記の検出スイツチ１１ａ，１１ｂの作動は、
例えば検出スイツチ１１ａ，１１ｂをマグネツト
形式とし、ピストン１４が前進したときには磁性
体のピストンヘツド１４ａと検出スイツチ１１ａ
との間で発生する吸引力をスイツチ１１ａが検知
し、またピストン１４が後退したときには他方の
検出スイツチ１１ｂが吸引力を検知するようにな
つている。そして、これら検出スイツチ１１ａ，
１１ｂの作動を適当な手段にて外部に表示させる
ことにより、作業者は、ピストン１４が正常に前
進及び後退運動を行なつたか否かを適確に知るこ
とができる。 The operation of the above detection switches 11a and 11b is as follows:
For example, the detection switches 11a and 11b are of magnetic type, and when the piston 14 moves forward, the magnetic piston head 14a and the detection switch 11a
The switch 11a detects the suction force generated between the piston 14 and the other detection switch 11b, which detects the suction force when the piston 14 retreats. These detection switches 11a,
By displaying the operation of the piston 11b externally by an appropriate means, the operator can accurately know whether the piston 14 is moving forward and backward normally.
なお、検出スイツチ１１ａ，１１ｂは何れか一
方の設置によつて実施してもよく、ピストンヘツ
ドが検出機構から離れる充填開始時のタイミング
設定にて（第３図の場合）、充填完了迄の時間設
定を確実に行なうのに至便となるほか、ピストン
ヘツドが前進した充填完了時のタイミングのみを
直接に検知する等（第４図の場合）、何れも充填
不良防止を実現できる。 Note that the detection switches 11a and 11b may be installed on either one, and the time until the completion of filling is determined by setting the timing at the start of filling when the piston head leaves the detection mechanism (in the case of Fig. 3). In addition to being convenient for making settings reliably, it is possible to prevent filling defects by directly detecting only the timing when the piston head moves forward to complete filling (as in the case of Fig. 4).
さらに実施の変更例として磁性体に代え、永久
磁石等の磁気体（磁気をおびた物）を設け、これ
に対する検出機構としてスイツチに代え磁気セン
サを用いてもピストンの作動位置を確認できる。 Furthermore, as an example of a modification, the operating position of the piston can be confirmed by providing a magnetic body (magnetized object) such as a permanent magnet instead of the magnetic body, and using a magnetic sensor instead of the switch as a detection mechanism for this.
以上のように構成されているこの考案による
と、発泡成形装置の原料充填器１における筒体１
１を非磁性体とし、筒体１１内を移動するピスト
ンヘツド１４ａを磁性体又は磁気体とし、筒体１
１にはピストン１４が所定距離だけ前進及び後退
したときの少なくとも何れか一方のピストンヘツ
ド１４ａの位置に、磁性体又は磁気体によるピス
トンヘツド１４ａとの間で発生する吸引力又は磁
気を検知する検出機構を設けているので、従来の
ようなピストン１４の作動を確認することができ
ない原料充填器とは異なり、作業者は検出機構の
信号によつてピストン１４が如何なる位置にある
かを確実に知ることができ、原料の充填不良に伴
う成形不良の発生を防止できる。 According to this invention configured as described above, the cylindrical body 1 in the raw material filling device 1 of the foam molding device
1 is made of a non-magnetic material, the piston head 14a moving within the cylinder 11 is made of a magnetic material, and the cylinder 1 is made of a magnetic material.
1 includes a detection method that detects an attractive force or magnetism generated between a magnetic body or a magnetic body at the position of at least one of the piston heads 14a when the piston 14 moves forward and backward by a predetermined distance; Unlike conventional raw material filling machines where the operation of the piston 14 cannot be confirmed due to the provision of a mechanism, the operator can reliably know the position of the piston 14 based on the signal from the detection mechanism. This makes it possible to prevent molding defects due to insufficient filling of raw materials.
その結果、充填作業に要する時間を良好に管理
でき、発泡成形作業の能率向上にも寄与できる。 As a result, the time required for the filling operation can be managed well, and it can also contribute to improving the efficiency of the foam molding operation.
上記のように、この考案は発泡成形品の不良品
の発生防止および発泡成形作業の能率化に貢献で
きる等種々の実用的効果を奏するものである。 As mentioned above, this invention has various practical effects, such as contributing to preventing the occurrence of defective foam molded products and increasing the efficiency of foam molding operations.
第１図および第２図はともにこの考案に係る原
料充填器におけるピストンの後退時および前進時
の断面図、第３図および第４図はピストン後退時
および前進時の一方のみに検出機構を有する場合
の断面図である。
１……原料充填器、１１……筒体、１１ａ，１
１ｂ……検出機構となる検出スイツチ、１４……
ピストン、１４ａ……ピストンヘツド。
1 and 2 are both sectional views when the piston is retracting and moving forward in the raw material filling device according to this invention, and FIGS. 3 and 4 have a detection mechanism only when the piston is retracting or moving forward. FIG. 1... Raw material filling device, 11... Cylindrical body, 11a, 1
1b...Detection switch serving as a detection mechanism, 14...
Piston, 14a...piston head.
Claims (1)
充填器の筒体内を移動するピストンのうちピス
トンヘツドの少なくとも一部を磁性体又は磁気
体とし、筒体を非磁性体とし、さらに筒体のう
ちピストンヘツド前進位置及び後退位置の少な
くとも一方には磁性体又は磁気体に対する検出
機構を設けたことを特徴とする原料充填器。 ２ 検出機構が検出スイツチからなる上記実用新
案登録請求の範囲第１項記載の原料充填器。 ３ 検出機構が磁気体に対する磁気センサからな
る上記実用新案登録請求の範囲第１項記載の原
料充填器。[Claims for Utility Model Registration] 1. In a raw material filling device for a foam molding device, at least a part of the piston head of a piston moving within a cylinder of the raw material filling device is made of a magnetic material or a magnetic material, and the cylinder is made of a non-magnetic material. What is claimed is: 1. A raw material filling device, characterized in that the cylindrical body is further provided with a magnetic material or a detection mechanism for the magnetic material at at least one of the forward position and the retracted position of the piston head of the cylindrical body. 2. The raw material filling device according to claim 1, wherein the detection mechanism comprises a detection switch. 3. The raw material filling device according to claim 1, wherein the detection mechanism comprises a magnetic sensor for a magnetic body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5735183U JPS59162213U (en) | 1983-04-15 | 1983-04-15 | Raw material filling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5735183U JPS59162213U (en) | 1983-04-15 | 1983-04-15 | Raw material filling machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59162213U JPS59162213U (en) | 1984-10-30 |
| JPS6329545Y2 true JPS6329545Y2 (en) | 1988-08-09 |
Family
ID=30187661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5735183U Granted JPS59162213U (en) | 1983-04-15 | 1983-04-15 | Raw material filling machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59162213U (en) |
-
1983
- 1983-04-15 JP JP5735183U patent/JPS59162213U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59162213U (en) | 1984-10-30 |
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