CN210082308U - Hot runner nozzle - Google Patents
Hot runner nozzle Download PDFInfo
- Publication number
- CN210082308U CN210082308U CN201920883186.8U CN201920883186U CN210082308U CN 210082308 U CN210082308 U CN 210082308U CN 201920883186 U CN201920883186 U CN 201920883186U CN 210082308 U CN210082308 U CN 210082308U
- Authority
- CN
- China
- Prior art keywords
- nozzle
- sleeve
- heat insulation
- nozzle main
- sealing
- 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
Links
- 238000007789 sealing Methods 0.000 claims abstract description 43
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 27
- 239000010959 steel Substances 0.000 claims abstract description 27
- 238000009413 insulation Methods 0.000 claims description 24
- 239000000463 material Substances 0.000 claims description 7
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 6
- 239000012774 insulation material Substances 0.000 claims description 5
- 239000004642 Polyimide Substances 0.000 claims description 3
- 238000003754 machining Methods 0.000 claims description 3
- 229920001721 polyimide Polymers 0.000 claims description 3
- 238000001746 injection moulding Methods 0.000 abstract description 15
- 238000002347 injection Methods 0.000 abstract description 6
- 239000007924 injection Substances 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 5
- 239000011810 insulating material Substances 0.000 abstract description 4
- 239000012778 molding material Substances 0.000 abstract description 2
- 238000005507 spraying Methods 0.000 abstract description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- 239000004033 plastic Substances 0.000 description 5
- 229920003023 plastic Polymers 0.000 description 5
- 238000000465 moulding Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010137 moulding (plastic) Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
Images
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses a hot runner nozzle, which is characterized in that the nozzle body is made into an integrated structure, compared with a combined structure, the intensity is higher, the injection pressure with overhigh intensity can be borne, and the heat distribution in the injection process is more uniform; the sealing sleeve is made of a heat insulating material, so that heat transfer between the nozzle main body and the heat insulating sealing steel sleeve can be greatly reduced, heat loss is reduced, and the heat insulating sealing steel sleeve is also favorably sleeved on the nozzle main body; in the process of spraying the hot injection molding material to the mold, the heat insulating sleeve can greatly reduce the heat transfer between the nozzle body and the mold, thereby facilitating the temperature regulation of the hot runner.
Description
Technical Field
The utility model belongs to the technical field of the injection molding machine, specifically speaking relates to a hot runner nozzle.
Background
An injection molding machine, also known as an injection molding machine or an injection molding machine, is a main molding device for molding thermoplastic plastics or thermosetting plastics into plastic products of various shapes by using a plastic molding mold. The working principle of the injection machine is similar to that of an injection syringe for injection, and the injection machine adopts the technical process that the plasticized plastic in a molten state (namely, a viscous state) is injected into a closed mold cavity through a hot runner nozzle by means of the thrust of a screw (or a plunger), and a product is obtained after solidification and shaping.
The nozzle body of the hot runner nozzle package used by the current injection molding machine comprises a nozzle body, a heat insulation sealing steel sleeve sleeved on the nozzle body and a valve needle positioned in the center of the nozzle body, wherein a copper sealing sleeve is arranged between the heat insulation steel sleeve and the nozzle body, the nozzle body is an assembly formed by splicing a plurality of components, and the valve needle moves back and forth by being driven by a pneumatic device so as to open or close a front end nozzle of the nozzle body.
The hot runner nozzle has the following defects:
1) the nozzle main body is an assembly, so that the structural strength is poor, the injection molding pressure with overhigh strength cannot be borne, and the heat distribution is not uniform in the injection molding process;
2) the heat insulation sealing steel sleeve is in sealing splicing with the nozzle main body through the copper sealing sleeve, the heat conducting performance of the copper sealing sleeve is very high, and the heat on the nozzle main body can be transmitted to the heat insulation steel sleeve excessively, so that large heat loss is caused;
3) when using this hot runner nozzle, lack thermal-insulated structure between nozzle main body and the mould, lead to nozzle main body to have more heat transfer to mould, be unfavorable for the temperature regulation of hot runner.
SUMMERY OF THE UTILITY MODEL
An object of the present invention is to provide a hot runner nozzle for solving the above problems.
The utility model discloses a following technical scheme realizes above-mentioned purpose:
a hot runner nozzle comprises a nozzle main body, a valve needle arranged in the nozzle main body and a heat insulation sealing steel sleeve sleeved outside the nozzle main body, wherein a gap between a front port of the heat insulation sealing steel sleeve and the nozzle main body is sealed through a sealing sleeve, the sealing sleeve is sleeved on the nozzle main body in an interference fit manner, the edge part of the front port of the heat insulation sealing steel sleeve is clamped on the sealing sleeve, and the part of the nozzle main body close to a front-end nozzle is a conical part;
the nozzle main body is an integrated structure formed by one-time machining;
the sealing sleeve is made of a heat insulation material with the hardness smaller than that of a steel material;
the nozzle comprises a nozzle body and is characterized in that a heat insulation sleeve made of heat insulation materials is sleeved at the front end of the nozzle body, the heat insulation sleeve comprises a conical section sleeved on the conical part of the nozzle body in an interference sealing mode and a cylindrical section sleeved on the heat insulation sealing steel sleeve in an interference sealing mode, the tip end of the conical section of the heat insulation sleeve is opened, and the opening is right opposite to a nozzle of the nozzle body.
Preferably, the sealing sleeve is made of titanium alloy, and the heat insulation sleeve is made of titanium alloy or polyimide.
Compared with the prior art, the utility model discloses following beneficial effect has:
the nozzle main body is made into an integrated structure, compared with a combined structure, the nozzle main body has higher strength, can bear injection molding pressure with overhigh strength, and has more uniform heat distribution in the injection molding process; the sealing sleeve is made of a heat insulating material, so that heat transfer between the nozzle main body and the heat insulating sealing steel sleeve can be greatly reduced, heat loss is reduced, and the heat insulating sealing steel sleeve is also favorably sleeved on the nozzle main body; in the process of spraying the hot injection molding material to the mold, the heat insulating sleeve can greatly reduce the heat transfer between the nozzle body and the mold, thereby facilitating the temperature regulation of the hot runner.
Drawings
Fig. 1 is a schematic sectional exploded view of the hot runner nozzle of the present invention;
FIG. 2 is a schematic sectional view of the hot runner nozzle of the present invention;
in the drawings, the names of the parts corresponding to the reference numerals are as follows:
1-valve needle, 2-heat insulation sealing steel sleeve, 3-nozzle body, 4-sealing sleeve and 5-heat insulation sleeve.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
with reference to fig. 1 and 2, the present invention includes a nozzle body 3, a valve needle 1 disposed in the nozzle body 3, and a heat insulation sealing steel sleeve 2 sleeved outside the nozzle body 3, wherein a gap between a front port of the heat insulation sealing steel sleeve 2 and the nozzle body 3 is sealed by a sealing sleeve 4, the sealing sleeve 4 is sleeved on the nozzle body 3 in an interference manner, an edge portion of the front port of the heat insulation sealing steel sleeve 2 is clamped on the sealing sleeve 4, and a portion of the nozzle body 3 close to a front end spout is a tapered portion;
the nozzle body 3 is an integrated structure formed by one-time machining;
the sealing sleeve 4 is made of a heat insulating material with the hardness smaller than that of a steel material;
the front end sleeve of nozzle main part 3 has the heat insulating sleeve 5 of being made by thermal insulation material, and heat insulating sleeve 5 includes that interference seal cover 4 connects the toper section at the toper portion of nozzle main part 3, and interference seal cover 4 connects the cylinder section on heat insulating sealing steel bushing 2, and the tip opening of the toper section of heat insulating sleeve 5, and this opening just faces the spout of nozzle main part 3.
When the hot runner nozzle is applied to an injection molding machine, the valve needle 1 still moves back and forth under the control of the pneumatic device, when the valve needle 1 moves forward and blocks the nozzle of the nozzle main body 3, the injection molding channel is blocked, when the valve needle 1 moves back and leaves the nozzle of the nozzle main body 3, the injection molding channel is opened, the plastic in a molten state can be injected to a mold, and in the injection molding process, the heat insulation sleeve 5 can greatly reduce the heat transfer between the nozzle main body 3 and the mold, so that the temperature adjustment of a hot runner is facilitated; the sealing sleeve 4 is made of heat insulating materials, so that heat transfer between the nozzle main body 3 and the heat insulating sealing steel sleeve 2 can be greatly reduced, heat loss is reduced, and the sealing sleeve 4 is lower in structural strength relative to copper, so that the heat insulating sealing steel sleeve 2 is more favorably sleeved on the nozzle main body 3; 3 formula structures as an organic whole of nozzle body, for traditional integrated configuration, its intensity is higher, can bear the pressure of moulding plastics of too high strength, and the heat distribution is more even in the in-process of moulding plastics moreover.
As a constructive option, the sealing sleeve 4 is made of titanium alloy and the insulating sleeve 5 is made of titanium alloy or polyimide. The above materials have good heat insulation performance compared to steel materials and copper materials, and besides, other materials with similar functional structures can be selected, which will not be described herein.
According to the above embodiment, the present invention can be well implemented. It is worth to say that, on the premise of the above structural design, in order to solve the same technical problem, even if some insubstantial changes or retouching are made in the utility model, the essence of the adopted technical scheme is still the same as the utility model, so it should be in the protection scope of the utility model.
Claims (2)
1. The utility model provides a hot runner nozzle, includes the nozzle main part, arranges needle, cover in the nozzle main part are in the outside thermal-insulated sealed steel bushing of nozzle main part, the front port of thermal-insulated sealed steel bushing with gap between the nozzle main part passes through the seal cover and seals, the seal cover interference cup joints in the nozzle main part, the front port edge part joint of thermal-insulated sealed steel bushing is in on the seal cover, the position that the nozzle main part is close to the front end spout is toper portion, its characterized in that:
the nozzle main body is an integrated structure formed by one-time machining;
the sealing sleeve is made of a heat insulation material with the hardness smaller than that of a steel material;
the nozzle comprises a nozzle body and is characterized in that a heat insulation sleeve made of heat insulation materials is sleeved at the front end of the nozzle body, the heat insulation sleeve comprises a conical section sleeved on the conical part of the nozzle body in an interference sealing mode and a cylindrical section sleeved on the heat insulation sealing steel sleeve in an interference sealing mode, the tip end of the conical section of the heat insulation sleeve is opened, and the opening is right opposite to a nozzle of the nozzle body.
2. The hot runner nozzle according to claim 1, wherein: the sealing sleeve is made of titanium alloy, and the heat insulation sleeve is made of titanium alloy or polyimide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920883186.8U CN210082308U (en) | 2019-06-13 | 2019-06-13 | Hot runner nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920883186.8U CN210082308U (en) | 2019-06-13 | 2019-06-13 | Hot runner nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210082308U true CN210082308U (en) | 2020-02-18 |
Family
ID=69482647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920883186.8U Expired - Fee Related CN210082308U (en) | 2019-06-13 | 2019-06-13 | Hot runner nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210082308U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7451261B2 (en) | 2020-03-27 | 2024-03-18 | キヤノン株式会社 | Hot runner nozzle, injection molding equipment, and method for manufacturing resin molded products |
-
2019
- 2019-06-13 CN CN201920883186.8U patent/CN210082308U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7451261B2 (en) | 2020-03-27 | 2024-03-18 | キヤノン株式会社 | Hot runner nozzle, injection molding equipment, and method for manufacturing resin molded products |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200218 |