CN202174718U - Sleeve heater with fixing structure - Google Patents
Sleeve heater with fixing structure Download PDFInfo
- Publication number
- CN202174718U CN202174718U CN2011201051411U CN201120105141U CN202174718U CN 202174718 U CN202174718 U CN 202174718U CN 2011201051411 U CN2011201051411 U CN 2011201051411U CN 201120105141 U CN201120105141 U CN 201120105141U CN 202174718 U CN202174718 U CN 202174718U
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- CN
- China
- Prior art keywords
- sleeve
- heater
- spring
- spring heater
- expansion
- 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 - Fee Related
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Abstract
The utility model discloses a sleeve heater with a fixing structure, which comprises a spring heater and a sleeve sleeved on the periphery of the spring heater. Two ends of the spring heater are fixedly connected to two ends of the sleeve respectively by means of welding, and a sleeve body of the sleeve is provided with an expansion joint. The sleeve heater with the fixing structure has the advantage that after the spring heater is powered on and realizes temperature rise and heat expansion, the two ends of the spring heater, which are fixedly connected to two ends of the sleeve respectively and fixed, cannot extend out of the sleeve body and a spray nozzle, so that heating and heat transfer effects of the spring heater on the spray nozzle inside the same are guaranteed. Simultaneously, by the aid of expansion of the expansion joint arranged on the sleeve body of the sleeve, enlargement of gaps of spring rings caused by temperature rise and expansion of the spring heater can be compensated.
Description
Technical field
The utility model relates to a kind of hot runner mould, relates to a kind of sleeve heater that is used for the band fixed structure of hot runner mould specifically.
Background technologySleeve heater in the hot runner mould; Its primary structure is a sleeve and the spring heater that is located in the sleeve; In the spring heater, be provided with a nozzle again; Heat up when spring heater energising back, the nozzle in it heated, the main effect of sleeve be protect the spring heater not reason receive the effect of external force and destroyed.Existing sleeve heater; Its sleeve is directly to be enclosed within outside the spring heater, between heater and the sleeve certain clearance is arranged, after heater adds thermal expansion; It is big that its internal diameter becomes; Spacing between the turn of heater also can strengthen, and the part of spring heater is reached outside sleeve body and the nozzle body, has influenced heating and heat-transfer effect.
The utility model content
For overcoming above-mentioned defective, the utility model aims to provide and a kind ofly can effectively guarantee the sleeve heater that the spring heater heats nozzle.
For achieving the above object, the technical scheme that the utility model adopts is: a kind of sleeve heater with fixed structure, comprise spring heater and the sleeve that is set in spring heater periphery, and two ends of said spring heater are connected in two terminations of sleeve respectively.
Two ends of said spring heater are connected in two terminations of sleeve respectively through welding manner.
The cylindrical shell of said sleeve is provided with the expansion joint.
Adopted the sleeve heater of the band fixed structure of the utility model; Because two ends of spring heater are connected in two terminations of sleeve respectively; After the spring heater is being switched on the intensification thermal expansion; Because its two end is fixed by sleeve, so can not reach outside sleeve body and the nozzle body, has guaranteed heating and the heat-transfer effect of spring heater to the nozzle in it.Simultaneously, on the cylindrical shell of sleeve, be provided with the expansion joint, through stretching of expansion joint, the change that can compensate the turn spacing that causes because of spring heater intensification expansion is big.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the part drawing of the utility model.
Among the figure: 1-spring heater, 2-sleeve, 3-expansion joint.
The specific embodiment
As depicted in figs. 1 and 2; The utility model discloses a kind of sleeve heater with fixed structure; Comprise spring heater 1 and the sleeve 2 that is set in spring heater 1 periphery,, can the nozzle that be located in the spring heater 1 be heated through energising heating to spring heater 1.In sum, with existing sleeve heater basically identical.
The innovative point of the utility model is that mainly two ends of said spring heater 1 are connected in two terminations of sleeve 2 respectively.Because two ends of spring heater 1 are connected in two terminations of sleeve 2 respectively; After spring heater 1 is being switched on the intensification thermal expansion; Because its two end is fixed by sleeve 2; So can not reach outside sleeve body and the nozzle body, guarantee heating and the heat-transfer effect of spring heater 1 to the nozzle in it.
Usually two ends of spring heater 1 are connected in two terminations of sleeve 2 respectively through welding manner.Because sleeve 2 adopts stainless steel usually, so its welding manner adopts Laser Welding usually.
Elongated for the spring heater 1 that the change that compensates the turn spacing that causes because of the 1 intensification expansion of spring heater causes greatly, the cylindrical shell of said sleeve 2 is provided with expansion joint 3.The specific practice at expansion joint 3 is that sleeve 2 is slit into two sections; Fix two sections with two ends of spring heater 1 respectively then; Be expansion joint 3 between its two sections sleeves 2; Expand the big and spring heater that causes of the change of the turn spacing that causes 1 when elongated when spring heater 1 heats up, and it is big that expansion joint 3 also and then becomes, and avoided stress between spring heater 1 and the sleeve 2 and the destruction that is connected that possibly cause.
Claims (3)
1. sleeve heater with fixed structure comprises spring heater (1) and is set in the sleeve (2) of spring heater (1) periphery, it is characterized in that two ends of said spring heater (1) are connected in two terminations of sleeve (2) respectively.
2. the sleeve heater of band fixed structure according to claim 1 is characterized in that two ends of said spring heater (1) are connected in two terminations of sleeve (2) respectively through welding manner.
3. the sleeve heater of band fixed structure according to claim 1 and 2 is characterized in that the cylindrical shell of said sleeve (2) is provided with expansion joint (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201051411U CN202174718U (en) | 2011-04-12 | 2011-04-12 | Sleeve heater with fixing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201051411U CN202174718U (en) | 2011-04-12 | 2011-04-12 | Sleeve heater with fixing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202174718U true CN202174718U (en) | 2012-03-28 |
Family
ID=45864620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201051411U Expired - Fee Related CN202174718U (en) | 2011-04-12 | 2011-04-12 | Sleeve heater with fixing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202174718U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103331885A (en) * | 2013-06-25 | 2013-10-02 | 上虞市昊特热能科技有限公司 | Heater with adjustable length |
-
2011
- 2011-04-12 CN CN2011201051411U patent/CN202174718U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103331885A (en) * | 2013-06-25 | 2013-10-02 | 上虞市昊特热能科技有限公司 | Heater with adjustable length |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120328 Termination date: 20150412 |
|
| EXPY | Termination of patent right or utility model |