JPH0948052A - Device for heating synthetic resin molding probe - Google Patents
Device for heating synthetic resin molding probeInfo
- Publication number
- JPH0948052A JPH0948052A JP22265495A JP22265495A JPH0948052A JP H0948052 A JPH0948052 A JP H0948052A JP 22265495 A JP22265495 A JP 22265495A JP 22265495 A JP22265495 A JP 22265495A JP H0948052 A JPH0948052 A JP H0948052A
- Authority
- JP
- Japan
- Prior art keywords
- heater
- resin
- probe
- extension line
- body heater
- 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
- 239000000523 sample Substances 0.000 title claims abstract description 32
- 238000010438 heat treatment Methods 0.000 title claims abstract description 13
- 238000000465 moulding Methods 0.000 title claims description 10
- 229920003002 synthetic resin Polymers 0.000 title claims description 6
- 239000000057 synthetic resin Substances 0.000 title claims description 6
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 16
- 229920005989 resin Polymers 0.000 abstract description 21
- 239000011347 resin Substances 0.000 abstract description 21
- 238000002347 injection Methods 0.000 abstract description 4
- 239000007924 injection Substances 0.000 abstract description 4
- 238000001746 injection moulding Methods 0.000 abstract description 2
- 238000011109 contamination Methods 0.000 abstract 1
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000000243 solution Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910001120 nichrome Inorganic materials 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 239000003086 colorant Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 229920006015 heat resistant resin Polymers 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/30—Flow control means disposed within the sprue channel, e.g. "torpedo" construction
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は合成樹脂成形用の合成樹
脂成形用プロ−ブの加熱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 a heating device for a synthetic resin molding probe for molding synthetic resin.
【０００２】[0002]
【従来の技術】従来この種の加熱装置は、図３、図４に
従って説明すると、全体が略砲弾型のプロ−ブ本体１
は、ニクロム系、白金系、セラミックヒ−タ等のチップ
ヒ−タ２を内蔵した円錐状部３と、同様にニクロム系、
白金系、セラミックヒ−タ等のボディヒ−タ４を内蔵し
た筒状胴部５と該筒状胴部の上部位置に設けたリ−ド線
７を導出するリ−ド線保護管９と鍔部６とを備えてお
り、ボディヒ−タ４の電源供給用のリ−ド線７はボディ
ヒ−タ４の発熱部から非発熱部Ｌの距離をおいた引出口
Ａ、即ちボディヒ−タの上部（高密度巻部）Ｃよりも低
い温度部分から引き出している。2. Description of the Related Art A conventional heating device of this type will now be described with reference to FIGS.
Is a conical portion 3 containing a tip heater 2 such as a nichrome-based, platinum-based, or ceramic heater, as well as a nichrome-based,
A tubular body 5 containing a body heater 4 such as platinum-based or ceramic heater, and a lead wire protection tube 9 and a collar portion for leading out a lead wire 7 provided at an upper position of the tubular body. And a lead wire 7 for supplying power to the body heater 4 is provided at a distance A from the heat generating portion of the body heater 4 to the non-heat generating portion L, that is, the upper portion of the body heater ( High density winding portion) C is drawn from a lower temperature portion.
【０００３】[0003]
【従来技術の欠点】然し乍ら、上記リ−ド線７の引出口
Ａの耐久温度は一般的に低温（３００℃前後）であり、
ボディヒ−タ４の発熱部と離す（非発熱部Ｌ）必要があ
り、加えてプロ−ブ本体１は金型へのセット方法により
鍔部６の温度がバックプレ−ト８に奪われてプロ−ブ本
体１の上部Ｂの温度が下がるためボディヒ−タの上部Ｃ
のヒ−タ容量を増し、且つ密度を上げる必要がある。However, the durability temperature of the outlet A of the lead wire 7 is generally low (around 300 ° C.),
It is necessary to separate it from the heat generating part of the body heater 4 (non-heat generating part L). In addition, the temperature of the collar part 6 is deprived by the back plate 8 by the method of setting the probe body 1 in the mold, and -Because the temperature of the upper part B of the main body 1 drops, the upper part C of the body heater
It is necessary to increase the heater capacity and the density.
【０００４】要するに従来技術では、 引出口Ａの温度を高くできない。 非発熱部Ｌが必要である。 熱環境はプロ−ブ本体の上部Ｂ或は鍔部６が温度低下
を示す。 要するに鍔部６部分のボディヒ−タ４の内部温度が高い
にも拘らず、鍔部６部分（図４のロ、ハ、ニ）の樹脂溶
融状態とプロ−ブ本体１の中央部分（図４のホ）の溶融
状態が著しく違ってくる（図４中 △Ｔ0〔℃〕の差） （図３と図４のイ、ロ…チはプロ−ブ本体或はマニホ−
ルドの所望位置を示し、図４はプロ−ブ本体とヒ−タ内
部温度（点線）の温度分布を示す。）。In short, the conventional technique cannot raise the temperature of the outlet A. The non-heating part L is required. Regarding the thermal environment, the upper part B of the probe main body or the collar portion 6 shows a temperature decrease. In short, although the internal temperature of the body heater 4 in the collar portion 6 is high, the resin melted state in the collar portion 6 portion (B, C, D in FIG. 4) and the central portion of the probe body 1 (see FIG. 4). (E) The melting state of () is remarkably different (difference of ΔT 0 [° C] in FIG. 4) (a and ro in FIGS. 3 and 4 are the probe body or the manifold).
FIG. 4 shows the temperature distribution of the probe main body and the inside temperature of the heater (dotted line). ).
【０００５】その結果鍔部６の温度低下により射出圧力
損失が大きく、また色替えや材料替えが困難になり、プ
ロ−ブ本体全体の温度バランスが悪いので温度環境の狭
い樹脂には不適であり、プロ−ブ本体の中央部がどうし
ても温度高になり中央部表面が焼け、炭化し製品に黒化
現象として表れ不良の要因となるAs a result, the temperature drop of the collar portion 6 causes a large injection pressure loss, and it becomes difficult to change colors and materials, and the temperature balance of the entire probe main body is poor, so that it is not suitable for a resin having a narrow temperature environment. , The temperature of the center of the probe body inevitably becomes high, the surface of the center burns, carbonizes, and it appears as a blackening phenomenon in the product, which is a cause of defectiveness.
【０００６】又プロ−ブ本体１の上部Ｂ部分の温度を確
保するため、ボディヒ−タ４の上部Ｃを密着巻き部とし
てヒ−タ密度を上げる必要がある。然しこれによりボデ
ィヒ−タ中心部の温度は高温になり、ボディヒ−タ自身
は勿論のこと、内部、外部を通るセンサ−線などに耐熱
処理を施す必要があり、また局所加熱による熱劣化のた
め耐久性が著しく低下する。In order to secure the temperature of the upper portion B of the probe main body 1, it is necessary to increase the heater density by using the upper portion C of the body heater 4 as a tightly wound portion. However, due to this, the temperature at the center of the body heater becomes high, and not only the body heater itself, but also the sensor wires passing through the inside and outside of the body heater need to be subjected to heat treatment, and due to heat deterioration due to local heating. Durability is significantly reduced.
【０００７】[0007]
【発明が解決しようとする課題】そこで本発明は、ボデ
ィヒ−タの上部に非発熱部、引出口を設けることなく、
即ちリ−ド線保護管位置まで伸びるボディヒ−タの端面
まで発熱を可能にしてプロ−ブ本体の上部、鍔部の温度
分布の改良を図り、もって溶融温度に敏感な樹脂や耐熱
性樹脂などの焼け易い材料にも対応し易くし、局所加熱
を少なくし、射出圧力の損失を大きく減少させ、多数個
取等への対応が容易とし、安定成形、耐久性等を図ろう
とするものである。SUMMARY OF THE INVENTION Therefore, according to the present invention, there is no need to provide a non-heat generating portion and a drawing port on the upper portion of the body heater.
That is, heat can be generated up to the end surface of the body heater that extends to the position of the lead wire protection tube to improve the temperature distribution of the upper part of the probe main body and the collar part, and thus the resin sensitive to the melting temperature and the heat resistant resin, etc. It is intended to make it easier to deal with easily burnable materials, to reduce local heating, to greatly reduce injection pressure loss, to easily cope with multi-cavity production, and to achieve stable molding and durability. .
【０００８】[0008]
【課題を解決するための手段】本発明は、リ−ド線をボ
ディヒ−タの上端部以外の比較的低い温度の部分から引
き出してプロ−ブ本体の鍔部或は上部の温度を確保しよ
うとするものである。According to the present invention, the lead wire is pulled out from a portion having a relatively low temperature other than the upper end portion of the body heater to secure the temperature of the flange portion or the upper portion of the probe main body. It is what
【０００９】[0009]
【実施例】本案を図１の実施例によって詳記すると（従
来技術と同じ構成のものは同一符号で示す。）、全体が
略砲弾型で、チップヒ−タ２を内蔵した円錐状部３と、
ボディヒ−タ４を内蔵した筒状胴部５と、該筒状胴部５
の上部位置に設けたリ−ド線７、７’を導出するリ−ド
線保護管９と、鍔部６とを備えたプロ−ブ本体１におい
て、チップヒ−タ２のリ−ド線７’は上端がリ−ド線保
護管９位置まで伸びるボディヒ−タ４の上方位置に、ボ
ディヒ−タ４のリ−ド線７はボディヒ−タ４の中心部近
傍で比較的温度の低い位置（図１のホ、への中間位置）
に設けた引出口Ａに接続してなるものである（図１と図
２のイ、ロ………チはプロ−ブ本体或はマニホ−ルドの
所望位置を示し、図２はその温度分布を示す。）。尚チ
ップヒ−タのないプロ−ブ本体もある。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to the embodiment shown in FIG. 1 (the same components as those in the prior art are designated by the same reference numerals). ,
A tubular body portion 5 having a body heater 4 built-in, and the tubular body portion 5
The lead wire 7 of the tip heater 2 in the probe main body 1 provided with the lead wire protection tube 9 for leading out the lead wires 7 and 7'provided at the upper position of the 'Is located above the body heater 4 whose upper end extends to the position of the lead wire protection tube 9, and the lead wire 7 of the body heater 4 is located at a relatively low temperature near the center of the body heater 4 ( (Intermediate position to E in Fig. 1)
It is connected to the outlet A provided in (Fig. 1 and Fig. 2 shows the desired position of the probe main body or the manifold, and Fig. 2 shows its temperature distribution. Indicates). There is also a probe body without a tip heater.
【００１０】図中８はバックプレ−ト、１０はキャビプ
レ−ト、１１は樹脂流通路でプロ−ブ本体１とバックプ
レ−ト８、キャビプレ−ト１０によって形成され、樹脂
流通路１１の上端はマニホ−ルド１２の樹脂流通孔１３
と連通して溶融樹脂を流通自在とし、樹脂流通路の先端
はキャビテイのゲ−ト１４に望ませ金型に組み込むよう
にしてある。In the figure, 8 is a back plate, 10 is a cab plate, 11 is a resin flow passage formed by the probe main body 1, the back plate 8 and the cab plate 10, and the upper end of the resin flow passage 11 is formed. Is the resin passage hole 13 of the manifold 12.
The molten resin is allowed to flow freely in communication therewith, and the tip of the resin flow passage is incorporated in a desired mold for the cavity gate 14.
【００１１】又引出口Ａはボディヒ−タ４の中心部近傍
の外、該ボディヒ−タ４の下部等の上端部以外の比較的
温度の低い部位でも良い。The outlet port A may be a portion having a relatively low temperature other than the vicinity of the central portion of the body heater 4 and other than the upper end portion such as the lower portion of the body heater 4.
【００１２】[0012]
【作用】図示しない射出成形機のノズルより溶融樹脂を
射出すればその溶融樹脂は樹脂流通孔１３、樹脂流通孔
１１の先端よりゲ−ト１４をへてキャビティに侵入し成
形される。When the molten resin is injected from the nozzle of an injection molding machine (not shown), the molten resin is injected into the cavity through the resin flow hole 13 and the tip of the resin flow hole 11 and into the cavity for molding.
【００１３】[0013]
【効果】本発明は叙上のようにボディヒ−タのリ−ド線
の引出口を該ボディヒ−タの上端部以外の比較的温度の
低い部位に設けたのでリ−ド線保護管９まで伸びるボデ
ィヒ−タの端面まで発熱できるのでプロ−ブ本体１の上
部、即ちＢ部、鍔部６付近の温度が大きく改善され、図
２の△Ｔnの如く△Ｔn≪△Ｔ0となる。As described above, according to the present invention, the lead wire outlet of the body heater is provided at a portion having a relatively low temperature other than the upper end portion of the body heater. Since the heat can be generated up to the end surface of the extending body heater, the temperature in the upper portion of the probe main body 1, that is, in the vicinity of the B portion and the collar portion 6 is greatly improved, and ΔT n << Δ T 0 as Δ T n in FIG. .
【００１４】その結果、溶融温度に敏感な樹脂や耐熱性
樹脂などの焼け易い材料にも対応が可能となり、局所加
熱も従来のものより少なくなるのでプロ−ブ本体の表面
が焼けにくくなって炭化物の発生が少なく、プロ−ブ自
身の耐久性が伸び、製品への炭化物の混入が激減し、歩
留まりがアップする。[0014] As a result, it is possible to correspond to burn easily material such sensitive resin and heat resistance resin melting temperature, pro since local heating becomes less than that of the conventional - is the surface of the probe body is less likely to burn carbide Is less likely to occur, the durability of the probe itself is extended, the inclusion of carbide in the product is drastically reduced, and the yield is improved.
【００１５】プロ−ブ本体１の上部Ｂ部分が改善される
ことにより射出圧力の損失が大きく減少し、又フロ−バ
ランスも取り易くなり、多数個取等への対応が容易とな
り、又材料替え、色替えが容易となる。By improving the upper part B of the probe main body 1, the loss of injection pressure is greatly reduced, and the flow balance can be easily taken, so that it is easy to handle a large number of pieces and the material can be changed. , Color change becomes easy.
【００１６】ボディヒ−タの上部Ｃ近傍におけるワット
密度（発熱量密度）を下げることができるのでボディヒ
−タの中心部近傍等上端部位外の比較的温度の低い部位
の引出口Ａの温度は従来のものに比べ低温となりヒ−タ
の耐久性は勿論、該近傍にセットされたセンサ−線等は
温度保証範囲内で制御できヒ−タの耐久性を著しくアッ
プする。Since the watt density (heat density) near the upper portion C of the body heater can be lowered, the temperature of the outlet A at a relatively low temperature portion outside the upper end portion such as near the center portion of the body heater is conventionally. The temperature is lower than that of the above, not only the durability of the heater but also the sensor wire and the like set in the vicinity can be controlled within the temperature guarantee range, and the durability of the heater is remarkably improved.
【００１７】プロ−ブ本体全体の温度バランスが良いの
で、成形条件が取り易く、良品の安定成形が容易であ
る。Since the temperature balance of the entire probe main body is good, molding conditions can be easily taken and stable molding of good products is easy.
【図１】本発明に係る合成樹脂成形用プロ−ブの加熱装
置の断面説明図。FIG. 1 is an explanatory cross-sectional view of a heating device for a synthetic resin molding probe according to the present invention.
【図２】本発明プロ−ブ表面及びヒ−タ内部の温度分布
図。FIG. 2 is a temperature distribution diagram of the surface of the probe of the present invention and the inside of the heater.
【図３】従来の合成樹脂成形用プロ−ブの加熱装置の断
面説明図。FIG. 3 is an explanatory cross-sectional view of a heating device for a conventional synthetic resin molding probe.
【図４】従来プロ−ブ表面及びヒ−タ内部の温度分布
図。FIG. 4 is a temperature distribution diagram of the surface of the conventional probe and the inside of the heater.
１ プロ−ブ本体 ２ チップヒ−タ ３ 円錐状部 ４ ボディヒ−タ ５ 筒状胴部 ６ 鍔部 ７ リ−ド線 ９ リ−ド線保護管 Ａ 引出口 Ｂ プロ−ブ本体の上部 Ｃ ボディヒ−タの上部 1 Probe main body 2 Tip heater 3 Conical part 4 Body heater 5 Cylindrical body part 6 Collar part 7 Lead wire 9 Lead wire protection tube A Drawout B Upper part of the probe body C Body heat Upper part
Claims (1)
ヒ−タ４を内蔵した筒状胴部５と該筒状胴部５の上部位
置に設けたリ−ド線７を導出するリ−ド線保護管９と鍔
部６とを備えたプロ−ブ本体１において、ボディヒ−タ
のリ−ド線の引出口を該ボディヒ−タの上端部以外の比
較的温度の低い部位に設けた合成樹脂成形用プロ−ブの
加熱装置。1. A tubular body portion 5 having a conical portion 3 and a body heater 4 built therein, and a lead wire 7 provided at an upper position of the tubular body portion 5 are drawn out. In the probe main body 1 provided with the lead wire protection tube 9 and the flange portion 6, the lead wire outlet of the body heater is located at a portion having a relatively low temperature other than the upper end portion of the body heater. A heating device for the provided synthetic resin molding probe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22265495A JPH0948052A (en) | 1995-08-08 | 1995-08-08 | Device for heating synthetic resin molding probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22265495A JPH0948052A (en) | 1995-08-08 | 1995-08-08 | Device for heating synthetic resin molding probe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0948052A true JPH0948052A (en) | 1997-02-18 |
Family
ID=16785845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22265495A Pending JPH0948052A (en) | 1995-08-08 | 1995-08-08 | Device for heating synthetic resin molding probe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0948052A (en) |
-
1995
- 1995-08-08 JP JP22265495A patent/JPH0948052A/en active Pending
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