JP2505281Y2 - Injection molding machine nozzle - Google Patents
Injection molding machine nozzleInfo
- Publication number
- JP2505281Y2 JP2505281Y2 JP1990074396U JP7439690U JP2505281Y2 JP 2505281 Y2 JP2505281 Y2 JP 2505281Y2 JP 1990074396 U JP1990074396 U JP 1990074396U JP 7439690 U JP7439690 U JP 7439690U JP 2505281 Y2 JP2505281 Y2 JP 2505281Y2
- Authority
- JP
- Japan
- Prior art keywords
- nozzle
- thermocouple
- injection molding
- molding machine
- groove
- 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
Landscapes
- Injection Moulding Of Plastics Or The Like (AREA)
Description
【考案の詳細な説明】 （産業上の利用分野） 本考案は、射出成形機用ノズルに関し、特にノズル外
周面に装着される熱電対を取り外すための構造に関す
る。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a nozzle for an injection molding machine, and more particularly to a structure for removing a thermocouple mounted on the outer peripheral surface of the nozzle.
（従来の技術） 成形品の不具合防止、安定成形のためノズル先端の温
度制御が重要なことは、従来よりよく知られた事実であ
る。射出成形機用ノズルの温度を測定する場合、熱電対
を使用するが、取り外す際に、先端部を破損し易いとい
う問題点があった。第１図に示すように、かぎ型（「）
のシース熱電対２をノズル１から外す場合、熱電対後部
2aのみを引き上げると、測温接点2bの部分が抜け難く、
曲げの力が作用し熱電対２が破損してしまう不具合があ
った。(Prior Art) It is a well known fact that temperature control of a nozzle tip is important for preventing defects in molded products and for stable molding. Although a thermocouple is used to measure the temperature of the nozzle for the injection molding machine, there is a problem that the tip portion is easily damaged when the nozzle is removed. As shown in Fig. 1, a hook type (")
When removing the sheath thermocouple 2 from the nozzle 1,
If only 2a is pulled up, it will be difficult to remove the temperature measuring contact 2b,
There was a problem that the bending force acted and the thermocouple 2 was damaged.
（考案が解決しようとする問題点） 本考案は、上述した如き事情に鑑み射出成形機用ノズ
ルの熱電対を破損せずに取り外す構造を提供することに
ある。(Problems to be Solved by the Invention) In view of the circumstances described above, the present invention provides a structure for removing the thermocouple of the nozzle for an injection molding machine without damaging it.
（問題点を解決するための手段） 上記問題点を解決する為に、本考案は、外周面の軸方
向に沿って伸び、端部が屈曲して中心方向の穴を有する
溝を、該穴の近傍で外周方向に拡大したことを特徴とす
る。(Means for Solving the Problems) In order to solve the above problems, the present invention provides a groove that extends along the axial direction of the outer peripheral surface and has a bent end and a hole in the center direction. It is characterized by expanding in the outer peripheral direction in the vicinity of.
（実施例） 以下、図面により本考案の射出成形機用ノズルの一実
施例を説明する。Embodiment An embodiment of the nozzle for an injection molding machine of the present invention will be described below with reference to the drawings.
第４図に示すように射出成形機用ノズル１は、工具鋼
製であり、外径、約20mm長さ、約100mmの円筒体で、先
端が細径に形成されている。前記ノズル１は、図示しな
い加熱シリンダに螺合手段等により着脱自在に接続され
ている。上記ノズル１は、内部に流路1dが、また表面軸
方向に溝1aが設けられている。前記溝1aは、その長手方
向に沿って、熱電対２が嵌り込む幅と深さを持ってい
る。前記溝1aはノズル先端部側端部で、ノズル中心方向
へ屈曲した穴部を有し、当該穴部の底が測温点1Cとな
る。当該溝1aの穴部近傍において、直交する拡大溝1bが
設けられている。前記拡大溝1bはマイナスドライバ４の
先端を側方より挿入できる程度の幅をもつが、底は溝1a
と共通の深さである。As shown in FIG. 4, the injection molding machine nozzle 1 is made of tool steel, has a cylindrical body with an outer diameter, a length of about 20 mm, and a length of about 100 mm, and has a tip with a small diameter. The nozzle 1 is detachably connected to a heating cylinder (not shown) by screwing means or the like. The nozzle 1 is provided with a flow path 1d inside and a groove 1a in the axial direction of the surface. The groove 1a has a width and a depth in which the thermocouple 2 fits in along the longitudinal direction thereof. The groove 1a has a hole portion that is bent toward the center of the nozzle at the end on the nozzle tip side, and the bottom of the hole portion is the temperature measuring point 1C. In the vicinity of the hole portion of the groove 1a, an orthogonal enlarged groove 1b is provided. The enlarged groove 1b has a width such that the tip of the flathead screwdriver 4 can be inserted from the side, but the bottom has the groove 1a.
It has a common depth with.
熱電対２には、円柱状のシース型式を使用している。
当該熱電対２の先端部は、ノズル１の溝1aと測温点1cに
沿うように、かぎ型に屈曲しており測温点1cに、熱電対
の測温接点2bが埋設されている。測温接点2bから熱電対
後部2aまでは、シースで覆った熱電対素線が伸びてお
り、熱電対後部2aは、図示しない補償導線を介して、図
示しない温度調節装置へと接続されている。A cylindrical sheath type is used for the thermocouple 2.
The tip of the thermocouple 2 is bent in a hook shape along the groove 1a of the nozzle 1 and the temperature measuring point 1c, and the temperature measuring contact 1b of the thermocouple is embedded in the temperature measuring point 1c. A thermocouple wire covered with a sheath extends from the temperature measuring contact 2b to the thermocouple rear portion 2a, and the thermocouple rear portion 2a is connected to a temperature adjusting device (not shown) via a compensating lead wire (not shown). .
ノズル１の外周面にはバンドヒータ３が巻回され、ノ
ズル１との間に前記熱電対２が挟持している。A band heater 3 is wound around the outer peripheral surface of the nozzle 1, and the thermocouple 2 is sandwiched between the band heater 3 and the nozzle 1.
バンドヒータ３は、後端に図示しないリード線を介し
て、図示しない温度調節装置へと接続されていおり、同
バンドヒータ３への通電が制御されるようになってい
る。The band heater 3 is connected to a temperature adjusting device (not shown) at the rear end thereof via a lead wire (not shown), and the energization of the band heater 3 is controlled.
なお、バンドヒータ３の代わりに、コイルヒータや電
磁誘導加熱手段等を用いてもよい。Instead of the band heater 3, a coil heater or an electromagnetic induction heating means may be used.
この熱電対２を取り外すときは次の手順による。 To remove this thermocouple 2, follow the procedure below.
（１） バンドヒータ３を取り外す。(1) Remove the band heater 3.
（２） 拡大溝1bと熱電対２との間に側方よりマイナス
ドライバ４の先端を水平に押し込む。（第６図参照） （３） 当該マイナスドライバ４の先端を跳ね上げるこ
とにより、測温接点2bを測温点1cの穴部より外すと共
に、熱電対後部2aも上方に引っ張ることにより、熱電対
２全体を溝部から取り出す。(2) Push the tip of the flat-blade screwdriver 4 horizontally from the side between the expansion groove 1b and the thermocouple 2. (Refer to FIG. 6) (3) By flipping up the tip of the minus driver 4, the temperature measuring contact 2b is removed from the hole of the temperature measuring point 1c, and the thermocouple rear portion 2a is also pulled upward. 2 Take out the whole from the groove.
この手順に従えば、無理な力がかかることなく容易に
熱電対２を取り出すことができ、破損のおそれはない。If this procedure is followed, the thermocouple 2 can be easily taken out without applying excessive force, and there is no risk of damage.
なお、上記マイナスドイバ４の代わりに、ペンチ、プ
ライヤ等の把持操作を用いても良い。この場合上記拡大
溝１の幅を把持部の幅に合わせた寸法としておくのが好
ましい。Instead of the minus driver 4, a gripping operation such as pliers or pliers may be used. In this case, it is preferable to set the width of the enlarged groove 1 to a size that matches the width of the grip portion.
（考案の効果） 本考案の射出成形機用ノズルでは、補助的に工具を使
用するだけで熱電対に曲げの力を生ずることなく外すこ
とができる。従って、熱電対の破損事故を防止できる。(Effect of the Invention) With the nozzle for an injection molding machine of the present invention, it is possible to remove the nozzle without auxiliary bending force by using a tool. Therefore, it is possible to prevent damage accidents of the thermocouple.
第１図は、従来の射出成形機用ノズルに熱電対を取り付
けた状態を示す縦断面図である。 第２図は、第１図のＡ〜Ａ線に沿う断面図である。 第３図は、本考案の射出成形機用ノズルの一実施例を示
す平面図である。 第４図は、第３図の実施例に係わる射出成形機用ノズル
に熱電対を取り付けた状態を示す縦断面図である。 第５図は、第４図のＢ〜Ｂ線に沿う断面図である。 第６図は、熱電対の取り外し状態を示す斜視図である。 １……ノズル、1a……溝、1b……拡大溝 1c……測温点、1d……流路 ２……熱電対、2a……熱電対後部 2b……測温接点 ３……バンドヒータ、４……マイナスドライバFIG. 1 is a longitudinal sectional view showing a state in which a thermocouple is attached to a conventional injection molding machine nozzle. FIG. 2 is a sectional view taken along the line AA of FIG. FIG. 3 is a plan view showing an embodiment of the nozzle for an injection molding machine of the present invention. FIG. 4 is a longitudinal sectional view showing a state in which a thermocouple is attached to the nozzle for an injection molding machine according to the embodiment of FIG. FIG. 5 is a sectional view taken along the line BB of FIG. FIG. 6 is a perspective view showing a detached state of the thermocouple. 1 ... Nozzle, 1a ... Groove, 1b ... Enlarged groove 1c ... Temperature measuring point, 1d ... Flow path 2 ... Thermocouple, 2a ... Thermocouple rear part 2b ... Temperature measuring contact 3 ... Band heater 4, ... flathead screwdriver
Claims (1)
して中心方向の穴を有する溝を、該穴の近傍で外周方向
に拡大したことを特徴とする射出成形機のノズル。1. A nozzle for an injection molding machine, characterized in that a groove having an outer peripheral surface extending along the axial direction and having an end bent and having a hole in the center direction is expanded in the outer peripheral direction in the vicinity of the hole. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990074396U JP2505281Y2 (en) | 1990-07-16 | 1990-07-16 | Injection molding machine nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990074396U JP2505281Y2 (en) | 1990-07-16 | 1990-07-16 | Injection molding machine nozzle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0433520U JPH0433520U (en) | 1992-03-18 |
| JP2505281Y2 true JP2505281Y2 (en) | 1996-07-24 |
Family
ID=31614055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990074396U Expired - Lifetime JP2505281Y2 (en) | 1990-07-16 | 1990-07-16 | Injection molding machine nozzle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2505281Y2 (en) |
-
1990
- 1990-07-16 JP JP1990074396U patent/JP2505281Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0433520U (en) | 1992-03-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RD02 | Notification of acceptance of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7422 Effective date: 20050428 |
|
| RD04 | Notification of resignation of power of attorney |
Effective date: 20050606 Free format text: JAPANESE INTERMEDIATE CODE: A7424 |