CN201552726U - Novel heater structure - Google Patents

Novel heater structure Download PDF

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Publication number
CN201552726U
CN201552726U CN2009202125241U CN200920212524U CN201552726U CN 201552726 U CN201552726 U CN 201552726U CN 2009202125241 U CN2009202125241 U CN 2009202125241U CN 200920212524 U CN200920212524 U CN 200920212524U CN 201552726 U CN201552726 U CN 201552726U
Authority
CN
China
Prior art keywords
temperature sensor
locking device
inner housing
new type
interior cover
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
Application number
CN2009202125241U
Other languages
Chinese (zh)
Inventor
杜鸣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANGHAI MIYAB HOT RUNNER TECHNOLOGY Co Ltd
Original Assignee
SHANGHAI MIYAB HOT RUNNER TECHNOLOGY Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SHANGHAI MIYAB HOT RUNNER TECHNOLOGY Co Ltd filed Critical SHANGHAI MIYAB HOT RUNNER TECHNOLOGY Co Ltd
Priority to CN2009202125241U priority Critical patent/CN201552726U/en
Application granted granted Critical
Publication of CN201552726U publication Critical patent/CN201552726U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

A novel heater structure comprises an outer housing, an inner housing, a heating coil, a temperature sensor and a locking device, wherein the locking device adopts the threaded connection of a conical screw hole and conical external threads at the head end of the inner housing; one end of the outer housing is propped against a boss surface of the locking device in a matched manner, and the other end is propped against a boss surface of the inner housing in a matched manner; the locking device can be a front retainer ring; the front retainer ring adopts a hollow circular ring structure; a multi-level boss surface structure with the ladder-shaped cross section is arranged inside the front retainer ring; a groove is formed at an end part of the inner housing and cuts through the inner housing; a temperature sensor cabling channel and a temperature sensor fixed hole are also arranged on the inner housing for fixedly mounting the temperature sensor in the inner housing; and a temperature measuring point is arranged on the heater. The utility model has a simple structure, reduces the occupied space and can effectively fix the temperature sensor on a nozzle body.

Description

A kind of new type heater structure
Technical field
The utility model relates to a kind of heater structure, and especially injection moulding is with the heater structure on the nozzle.
Background technology
Existing injection moulding sees also Fig. 1 with nozzle heater, comprises overcoat 11, interior cover 13, heat coil 14.Heater, temperature sensor 15 and temperature controller constitute the temperature control system of injection moulding with nozzle together.The end of temperature sensor 15 is arranged on carries out temperature-sensitive in the temperature sensor fixing hole 19.Under the normal operating conditions, temperature sensor 15 feeds back to temperature controller with the temperature information of body 17 ends, temperature controller control heat coil 14 is heated up, thereby make the temperature of body 17 end points for measuring temperature remain on a particular value.There is following shortcoming in this structure:
Temperature sensor 15 is arranged in the temperature sensor fixing hole 19, for prevent that temperature sensor 15 from coming off in installation and use, need be fixed with fixed screw 16, this just makes the position of placing nozzle on the mould will reserve certain space, and have axial relative motion between heater and the nozzle body 17, also need the axially-movable that spacing ring 18 limits heater be set in body end.
The utility model content
The purpose of this utility model is in order effectively to overcome the above-mentioned shortcoming of prior art, a kind of new type heater structure to be provided, and it is simple in structure, can effectively be fixed on heater on the nozzle body and does not take unnecessary place.
For achieving the above object, solution of the present utility model is:
A kind of new type heater structure, it comprises: overcoat, interior cover, heat coil, temperature sensor, it also comprises locking device, this locking device adopts being threaded of conical external screw thread of conical bolt hole and interior cover head end, an end of overcoat cooperate with the locking device boss face offset, the other end cooperates with interior cover boss face and offsets.
This locking device is preceding back-up ring, and described preceding back-up ring is the torus structure of hollow, and its inside becomes stair-stepping multistage boss face structure for cross section.
Should also be provided with groove in interior cover end, groove is cut and is worn interior cover.
In the cover, point for measuring temperature was arranged on the heater in this temperature sensor was located at.
Be arranged with temperature sensor trough, the temperature sensor fixing hole of fixed installation temperature sensor in being somebody's turn to do, temperature sensor trough and temperature sensor fixing hole join, and both length sums are identical with interior cover length.
This temperature sensor fixing hole is long to be 2-10mm, with temperature sensor be matched in clearance; Temperature sensor trough slightly larger in diameter is in the temperature sensor diameter.
Owing to adopted technique scheme, the utlity model has following characteristics: the temperature sensor point for measuring temperature is arranged on the heater, can effectively reduce the space of placing nozzle on the mould, and can effectively prevent coming off of temperature sensor; Heater is locked on the nozzle body, can prevent effectively that heater is along the body axially-movable.
Description of drawings
Fig. 1 is the heater structure schematic diagram of a kind of existing injection moulding with nozzle.
Fig. 2 is the utility model structural representation.
Fig. 3 is the interior nested structure schematic diagram of heater in the utility model.
Fig. 4 is the cross-sectional schematic of overlapping in the heater in the utility model.
The specific embodiment
The utility model is described in further detail below in conjunction with the accompanying drawing illustrated embodiment.
As shown in Figure 2, the utility model structure comprises: preceding back-up ring 1, overcoat 2, interior cover 3, heat coil 4, temperature sensor 5.Preceding back-up ring 1 is the torus structure of hollow, and its inside becomes stair-stepping multistage boss face structure for cross section.In cover 3 cephalic pars be made as taper shape, this tapered end is provided with screw thread, as Fig. 2-shown in Figure 4, preceding back-up ring 1 adopts tapered treads to be connected with interior cover 3, and interior cover 3 is provided with groove 31, overlaps 3 in groove 31 is cut and worn.Before tighten during back-up ring 1, because the existence of groove 31, the oral area of interior cover 3 can contraction distortion, makes between itself and the nozzle body 6 to closely cooperate, and can prevent effectively that heater breaks away from from body.Also be provided with temperature sensor trough 32 and temperature sensor fixing hole 33 on the interior cover 3 to install and fix temperature sensor 5, can prevent effectively that temperature sensor is loosening, and the point for measuring temperature of temperature sensor 5 be arranged on the heater in fixing hole 33.The length 2-10mm of temperature sensor fixing hole 33, with temperature sensor be matched in clearance, the degree of depth of temperature sensor trough 32 and width are all big slightly than temperature sensor diameter, and temperature sensor trough 32 and temperature sensor fixing hole 33 join, and both length sums are identical with interior cover 3 length.Owing in the cover 3, internally overlap 3 radial dimension and suitably relax in temperature sensor 5 is installed on, make it can hold this temperature sensor 5.
One end of overcoat 2 and the boss face of interior cover 3 offset, and can be matched in clearance, interference fit, also can be that pin connects or welding; The boss face of the other end of overcoat 2 and preceding back-up ring 1 offsets, and adopts matched in clearance.
The outer wall of cover 3 in heat coil 4 is wrapped in.
The above-mentioned description to embodiment is can understand and use the utility model for the ease of those skilled in the art.The person skilled in the art obviously can be easy to these embodiment are made various modifications, and needn't pass through performing creative labour being applied in the General Principle of this explanation among other embodiment.Therefore, the utility model is not limited to the foregoing description, and those skilled in the art should be within protection domain of the present utility model for improvement and modification that the utility model is made according to announcement of the present utility model.

Claims (6)

1. new type heater structure, it comprises: overcoat, interior cover, heat coil, temperature sensor, it is characterized in that: it also comprises locking device, this locking device adopts being threaded of conical external screw thread of conical bolt hole and interior cover head end, an end of overcoat cooperate with the locking device boss face offset, the other end cooperates with interior cover boss face and offsets.
2. new type heater structure as claimed in claim 1 is characterized in that: this locking device is preceding back-up ring, and described preceding back-up ring is the torus structure of hollow, and its inside becomes stair-stepping multistage boss face structure for cross section.
3. new type heater structure as claimed in claim 1 is characterized in that: cover end also is provided with groove in this, and groove is cut and worn interior cover.
4. as each described new type heater structure of claim 1-3, it is characterized in that: in the cover, point for measuring temperature was arranged on the heater in this temperature sensor was located at.
5. new type heater structure as claimed in claim 4, it is characterized in that: the temperature sensor trough, the temperature sensor fixing hole that are arranged with the fixed installation temperature sensor in this, temperature sensor trough and temperature sensor fixing hole join, and both length sums are identical with interior cover length.
6. new type heater structure as claimed in claim 5 is characterized in that: this temperature sensor fixing hole is long to be 2-10mm, with temperature sensor be matched in clearance; Temperature sensor trough slightly larger in diameter is in the temperature sensor diameter.
CN2009202125241U 2009-12-04 2009-12-04 Novel heater structure Expired - Fee Related CN201552726U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009202125241U CN201552726U (en) 2009-12-04 2009-12-04 Novel heater structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009202125241U CN201552726U (en) 2009-12-04 2009-12-04 Novel heater structure

Publications (1)

Publication Number Publication Date
CN201552726U true CN201552726U (en) 2010-08-18

Family

ID=42612401

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009202125241U Expired - Fee Related CN201552726U (en) 2009-12-04 2009-12-04 Novel heater structure

Country Status (1)

Country Link
CN (1) CN201552726U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108381875A (en) * 2018-03-05 2018-08-10 高立凡 A kind of Hot runner heater

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108381875A (en) * 2018-03-05 2018-08-10 高立凡 A kind of Hot runner heater

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100818

Termination date: 20131204