CN203344280U - Length-adjustable heater - Google Patents
Length-adjustable heater Download PDFInfo
- Publication number
- CN203344280U CN203344280U CN 201320366698 CN201320366698U CN203344280U CN 203344280 U CN203344280 U CN 203344280U CN 201320366698 CN201320366698 CN 201320366698 CN 201320366698 U CN201320366698 U CN 201320366698U CN 203344280 U CN203344280 U CN 203344280U
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- CN
- China
- Prior art keywords
- sleeve body
- heater
- spring
- trapping
- cylindrical shell
- 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 length-adjustable heater which comprises a spring heating ring, wherein a cylindrical sleeve body covering the spring heating ring is cast outside the spring heating ring, and divided into an upper sleeve body and a lower sleeve body which are separated from each other; a female step and a male step which are matched with each other are arranged on connection surfaces of the upper sleeve body and the lower sleeve body respectively; and the male step penetrates into the female step. With the adoption of the length-adjustable heater, the spring heating ring is cast into the sleeve body, and the four surfaces of the spring heating ring can perform heat exchange with the sleeve body, cannot deform due to heating, and are kept to be closely contacted with the sleeve body all the time, so that a heating effect is improved; the sleeve body is divided into the upper sleeve body and the lower sleeve body which are separated from each other to compensate the spring heater extended due to deformation; and nozzles in various lengths can be heated by stretching appropriately.
Description
Technical field
The utility model relates to a kind of hot runner mould system, particularly relates to a kind of nozzle etc. being heated the heater of adjustable-length.
Background technology
Heater is the most common a kind of parts in the hot runner mould system; its primary structure is a sleeve and is located at the helical spring heater in sleeve; the spring heaters set on the outer circumference surface of nozzle; after the energising of spring heater, heat up; nozzle in it is heated, the Main Function of sleeve be protection spring heater not reason be subject to the effect of external force and destroyed.Existing heater, for avoiding adding spacing between the turn of thermal expansion post-heater because strengthening when heater, and a part that makes the spring heater reaches outside sleeve body and nozzle body, usually sleeve body is divided into to two sections, two ends of spring heater are separately fixed to two ends of sleeve body, by the expansion joint between two sections sleeve bodies, the change that compensates the turn spacing caused because of spring heater intensification expansion is large.But the heater of existing this adjustable length, between its spring heater and sleeve body, be only single face or three face contact types, after spring heater elevated temperature deformation, contact-making surface between itself and sleeve body can reduce to break away from fully even, affected the heat conduction of spring heater to sleeve body, simultaneously, the gap formed between two sections sleeve bodies also easily makes heat run out of, wasted heat.
The utility model content
For overcoming above-mentioned defect, the utility model aims to provide a kind of can efficiently the heating sleeve body, saves again the heater of the adjustable-length of the energy simultaneously.
For achieving the above object, the technical solution adopted in the utility model is: a kind of heater of adjustable length, comprise a spring heating collar, described spring heating collar is cast with one deck outward and wraps being of this spring heating collar sleeve body cylindraceous, and described sleeve body is divided into the upper bush body be separated from each other and the cylindrical shell of trapping.
The inwall of described upper bush body and the cylindrical shell of trapping has respectively a circle metal protection protector.
Be respectively equipped with a cloudy step of circle and circle balcony rank of mutual coupling on the joint face of described upper bush body and the cylindrical shell of trapping, described balcony rank penetrate in cloudy step.
Adopted the heater of adjustable length of the present utility model, by the spring heating collar is cast in sleeve body, makes four faces of spring heating collar all can carry out heat exchange with sleeve body, and can not be out of shape because of intensification on the one hand, remain and the close contact of sleeve body, improve heating effect; On the other hand, by sleeve body being divided into to the upper bush body be separated from each other and the cylindrical shell of trapping, compensate the spring heater extended because of distortion, also can realize by suitable elongation the heating to the nozzle of each length.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1-spring heating collar, 2-upper bush body, the 3-cylindrical shell of trapping, the cloudy step of 4-, 5-balcony rank, 6-metal protection protector.
The specific embodiment
As shown in Figure 1, the utility model discloses a kind of heater of adjustable length, comprise a spring heating collar 1, in actual applications, usually the coiling of two ends of spring heating collar 1 is closeer, middle coiling is thinner, the innovative point of the heater of adjustable length of the present utility model mainly is that being cast with one deck outside described spring heating collar 1 wraps being of this spring heating collar 1 sleeve body cylindraceous, usually the material of casting sleeve body can be heat conductivility preferably aluminium or copper, and described sleeve body is divided into the upper bush body 2 be separated from each other and the cylindrical shell 3 of trapping.Usually upper bush body 2 all adopts the same diameter, wall thickness with the cylindrical shell 3 of trapping, like this, two ends of closeer spring heating collar 1 of winding the line are wrapped by upper bush body 2 and the cylindrical shell 3 of trapping respectively, guarantee that the heat that spring heating collar 1 sends is greatly partly absorbed by upper bush body 2 and the cylindrical shell 3 of trapping, and the mid portion of the thinner spring heating collar 1 that winds the line, be used for connecting upper bush body 2 and the cylindrical shell 3 of trapping, guarantee the globality of sleeve body.
On the one hand because the inwall of the upper bush body 2 that casting forms and the cylindrical shell 3 of trapping is smooth not, its circularity is not high yet, make upper bush body 2 and the laminating degree of the inwall of the cylindrical shell 3 of trapping and nozzle not high, the heat transfer of impact to nozzle, also in order to protect spring heating collar 1 on the other hand, for this reason, the described upper bush body 2 of the heater of adjustable-length of the present utility model and the inwall of the cylindrical shell 3 of trapping have respectively a circle metal protection protector 6, the inwall of described metal protection protector 6 can adopt the metalworking mode to process in advance, the outer surface of its inwall and nozzle can be fitted tightly, described metal protection protector 6 adopts tight fit connection with upper bush body 2 and the cylindrical shell 3 of trapping.
Another innovative point of the heater of adjustable length of the present utility model is to be respectively equipped with on the joint face of described upper bush body 2 and the cylindrical shell 3 of trapping a cloudy step 4 of circle and circle balcony rank 5 of mutual coupling, and described balcony rank 5 penetrate in cloudy step 4.Described cloudy step 4 refers on the inwall of the end that is connected with the cylindrical shell 3 of trapping at upper bush body 2 to have the step-like depression of a circle, the diameter of described cloudy step 4 is greater than the internal diameter of upper bush body 2, described balcony rank 5 refer to the cylindrical shell 3 of trapping is connected the outer wall of an end with upper bush body 2 on to have the step-like depression of a circle, the diameter on described balcony rank 5 is less than the external diameter of the cylindrical shell 3 of trapping, simultaneously, the internal diameter of common cloudy step 4 is slightly larger than the external diameter on balcony rank 5, to facilitate balcony rank 5, can carry out axial movement along cloudy step 4 smoothly.In actual applications, both can adopt balcony rank 5 on the joint face of upper bush body 2, adopted cloudy step 4 on the joint face of cylindrical shell 3 of trapping, also can adopt cloudy step 4 on the joint face of upper bush body 2, adopted balcony rank 5 on the joint face of cylindrical shell 3 of trapping.
Claims (3)
1. the heater of an adjustable length, comprise a spring heating collar (1), it is characterized in that being cast with the sleeve body cylindraceous that is that one deck wraps this spring heating collar (1) outside described spring heating collar (1), described sleeve body is divided into the upper bush body (2) be separated from each other and the cylindrical shell of trapping (3).
2. the heater of adjustable length according to claim 1, is characterized in that the inwall of described upper bush body (2) and the cylindrical shell of trapping (3) has respectively a circle metal protection protector (6).
3. the heater of adjustable length according to claim 1, it is characterized in that on the joint face of described upper bush body (2) and the cylindrical shell of trapping (3) that a circle cloudy step (4) and that is respectively equipped with mutual coupling encloses balcony rank (5), described balcony rank (5) penetrate in cloudy step (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320366698 CN203344280U (en) | 2013-06-25 | 2013-06-25 | Length-adjustable heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320366698 CN203344280U (en) | 2013-06-25 | 2013-06-25 | Length-adjustable heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203344280U true CN203344280U (en) | 2013-12-18 |
Family
ID=49744212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320366698 Expired - Fee Related CN203344280U (en) | 2013-06-25 | 2013-06-25 | Length-adjustable heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203344280U (en) |
Cited By (2)
| 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 |
| CN111263478A (en) * | 2020-01-18 | 2020-06-09 | 侯彤彤 | Adjustable heating ring device |
-
2013
- 2013-06-25 CN CN 201320366698 patent/CN203344280U/en not_active Expired - Fee Related
Cited By (3)
| 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 |
| CN111263478A (en) * | 2020-01-18 | 2020-06-09 | 侯彤彤 | Adjustable heating ring device |
| CN111263478B (en) * | 2020-01-18 | 2022-01-18 | 怀化睿越冶金机械有限公司 | Adjustable heating ring device |
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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: 20131218 Termination date: 20200625 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |