CN202640707U - Needle valve spool structure for white pigments - Google Patents
Needle valve spool structure for white pigments Download PDFInfo
- Publication number
- CN202640707U CN202640707U CN 201220192966 CN201220192966U CN202640707U CN 202640707 U CN202640707 U CN 202640707U CN 201220192966 CN201220192966 CN 201220192966 CN 201220192966 U CN201220192966 U CN 201220192966U CN 202640707 U CN202640707 U CN 202640707U
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- China
- Prior art keywords
- needle valve
- spool
- needle
- valve spool
- valve
- 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 - Lifetime
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
A needle valve spool structure for white pigments comprises a spool, and a space is arranged between the end of the spool and a cavity plate in matched mode. A wax sealing boss is arranged at the end of the spool and is matched with the cavity plate in sealing mode. A first-level sealing wax is additionally arranged between the needle valve spool and the cavity plate so that plastics taken out by a valve needle in the movement process cannot flow into the space arranged between the inclined surface at the end of the needle valve spool and the cavity plate, and material calculating and carbonizing of the plastics are avoided. The needle valve spool can be used in while pigments or transparent pigments.
Description
Technical field
The utility model belongs to the TOP-TIP field, relates to a kind of valve core of needle valve structure, relates in particular to the valve core of needle valve structure for the white material.
Background technology
In Hot runner Technology was used, needle valve system (valve gating) was one of TOP-TIP very general during Hot runner Technology is used.This system is by adopting needle (valve pin) under the effect of needle control device, and the mode with mechanical movement opens or closes cast gate in the given time.Above-mentioned control device mainly is comprised of cylinder, piston, needle-valve and needle-valve cover.As shown in Figure 1, the end 4 of valve core of needle valve 1 commonly used is taper type, and its end face is flush face, leaves certain gap 3 between this flush face and the hot flow path die plate 2, for holding the plastics that needle is taken out of.But also leave certain slit 5 on the inclined-plane 5 of valve core of needle valve 1 frustum type end 4 and between the cavityplate; When needle can be taken the plastics of molten condition out of in motion process, these plastics flow into gap 3 interior after, have the plastics of trace also easily to flow in this slit 5, and be difficult for all being taken out of by needle.Behind the long time integration, the easy carbonization of plastics at these 5 places, slit.Thereby so that the valve core of needle valve of this kind structure is not easy for white material or transparent material.Therefore, how addressing the above problem, is the content that the utility model will be studied.
Summary of the invention
The utility model provides a kind of valve core of needle valve structure for the white material for addressing the above problem.
For achieving the above object, the technical solution adopted in the utility model is: a kind of valve core of needle valve structure for the white material, comprise spool, and the end of this spool cooperates with cavityplate and is provided with the gap; The end of this spool is provided with a sealing boss, and this sealing boss and described cavityplate are sealed and matched.
Related content in the technique scheme is explained as follows:
1, in the such scheme, the end face of described sealing boss is flush face.
Because the utilization of the technical program, the utility model compared with prior art has following advantages:
1, owing to being provided with a sealing boss and cavityplate in the end of valve core of needle valve, the utility model is sealed and matched, between valve core of needle valve and cavityplate, increased the one-level sealing, so that the plastics that needle is taken out of can not flow in the inclined-plane and the slit between the cavityplate of valve core of needle valve end again, buildup and the carbonization of plastics have been avoided in motion process.So that this valve core of needle valve can be used for white material or transparency color.
2, the utility model is simple in structure, practical, and is easy to process, and production cost is low.
Description of drawings
Accompanying drawing 1 is that the prior art valve core of needle valve cooperates schematic diagram with cavityplate;
Accompanying drawing 2 the utility model valve core of needle valves cooperate schematic diagram with cavityplate.
In the above accompanying drawing: 1, spool; 2, cavityplate; 3, gap; 4, end; 5, slit; 6, glue boss.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described:
Embodiment:
As shown in Figure 2, a kind of valve core of needle valve structure for the white material comprises spool 1, and the end 4 of this spool 1 cooperates with cavityplate 2 and is provided with gap 3; The end 4 of this spool is provided with a sealing boss 6, and this sealing boss 6 is sealed and matched with described cavityplate 2.
The end face of described sealing boss 6 is flush face.
Being provided with a sealing boss and cavityplate in the end of valve core of needle valve is sealed and matched, between valve core of needle valve and cavityplate, increased the one-level sealing, so that the plastics that needle is taken out of can not flow in the inclined-plane and the slit between the cavityplate of valve core of needle valve end again, buildup and the carbonization of plastics have been avoided in motion process.So that this valve core of needle valve can be used for white material or transparency color.
Above-described embodiment only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the personage who is familiar with technique can understand content of the present utility model and according to this enforcement, can not limit protection domain of the present utility model with this.All equivalences of doing according to the utility model Spirit Essence change or modify, and all should be encompassed within the protection domain of the present utility model.
Claims (2)
1. a valve core of needle valve structure that is used for the white material comprises spool (1), and the end (4) of this spool (1) cooperates with cavityplate (2) and is provided with gap (3); It is characterized in that: the end of this spool (4) are provided with a sealing boss (6), and this sealing boss (6) is sealed and matched with described cavityplate (2).
2. the valve core of needle valve structure for the white material according to claim 1, it is characterized in that: the end face of described sealing boss (6) is flush face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220192966 CN202640707U (en) | 2012-04-29 | 2012-04-29 | Needle valve spool structure for white pigments |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220192966 CN202640707U (en) | 2012-04-29 | 2012-04-29 | Needle valve spool structure for white pigments |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202640707U true CN202640707U (en) | 2013-01-02 |
Family
ID=47409870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220192966 Expired - Lifetime CN202640707U (en) | 2012-04-29 | 2012-04-29 | Needle valve spool structure for white pigments |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202640707U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102672907A (en) * | 2012-04-29 | 2012-09-19 | 苏州好特斯模具有限公司 | Pin valve core structure for white pigment |
-
2012
- 2012-04-29 CN CN 201220192966 patent/CN202640707U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102672907A (en) * | 2012-04-29 | 2012-09-19 | 苏州好特斯模具有限公司 | Pin valve core structure for white pigment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130102 |
|
| CX01 | Expiry of patent term |