CN201970451U - Single point needle valve for injection - Google Patents
Single point needle valve for injection Download PDFInfo
- Publication number
- CN201970451U CN201970451U CN201120008198XU CN201120008198U CN201970451U CN 201970451 U CN201970451 U CN 201970451U CN 201120008198X U CN201120008198X U CN 201120008198XU CN 201120008198 U CN201120008198 U CN 201120008198U CN 201970451 U CN201970451 U CN 201970451U
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- cooling
- valve
- cylinder body
- needle
- layer
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- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a single point needle valve for injection. The single point needle valve comprises a flow passage device, a valve needle arranged in the flow passage device, a heating device arranged at the periphery of the flow passage device, and an air cylinder or an oil cylinder arranged at the periphery of the heating device; a piston of the air cylinder or the oil cylinder is connected with the valve needle; a cylinder body of the air cylinder or the oil cylinder is a rectangle; and a cooling water channel is arranged in the cylinder body. The bearing temperature of the single point needle valve is increased, and the service life of the single point needle valve is longer.
Description
Technical field
The utility model relates to plastic mould, is specifically related to a kind of injection moulding single-point needle-valve.
Background technology
Aspect plastic mould and plastics industry, low energy consumption, high efficiency hot flow path product are important developing direction, and hot flow path plays an increasingly important role in the industry.TOP-TIP can be divided into exploitation formula and needle valve two big classes.The needle valve system drives the piston motion by gas or liquid, thereby the motion of the needle that control is connected with piston utilizes the motion of needle to control the switching of cast gate.
The single-point needle-valve that adopts itself does not have cooling-water duct at present, only depend on the cooling-water duct of processing on mould to influence its temperature on every side, cooling effect is very poor, makes to there is following shortcoming: 1) injection temperature＜300 ℃, and can not the higher plastics of injection mo(u)lding temperature; 2) lack service life, be lower than 500,000.
Summary of the invention
Technical problem to be solved in the utility model is: remedy above-mentioned the deficiencies in the prior art, propose the injection moulding single-point needle-valve of a kind of injection mo(u)lding temperature height and long service life.
Technical problem of the present invention is solved by the following technical programs:
A kind of injection moulding single-point needle-valve, comprise flow passage device, place needle in the described flow passage device, place the heater of described runner periphery, with the cylinder or the oil cylinder that place described heater periphery, the piston of described cylinder or oil cylinder is connected with described needle, the cylinder body of described cylinder or oil cylinder is square, is provided with cooling-water duct in described cylinder interior.
Cylinder body is designed to square, can process independently cooling-water duct in cylinder interior easily, can be easy to control the temperature of cylinder body by the temperature of cooling water, the heat that makes control fricative heat of needle pistons reciprocating in the cylinder body and heater produce can in time distribute, not only improved 300 ℃ of the injection temperatures (〉 of single-point needle-valve), and make the longer service life of single-point needle-valve.
Preferably, described cooling-water duct in described cylinder body, be divided into two-layer or two-layer more than, described every layer of cooling-water duct forms two or more loops independently of one another; Interconnect between perhaps described layer and the layer and communicate, forms a loop, make cooling effective and even.
Preferably, the cross section of described cylinder body is a square, and described every layer of cooling-water duct is divided into four sections, and in four sidewalls of described cylinder body connecting ring coiled square successively.
Preferably, the cooling-water duct mouth is on the same sidewall of described cylinder body.
Preferably, described every section cooling-water duct is all parallel with the bottom surface of described cylinder body.
The beneficial effect that the utility model is compared with the prior art is: square by cylinder body is designed to, and be processed to form independently cooling-water duct in cylinder interior, can be easy to control the temperature of cylinder body by the temperature of cooling water, the heat that makes control fricative heat of needle pistons reciprocating in the cylinder body and heater produce can in time distribute, not only improve injection temperature, and made the longer service life of single-point needle-valve.
In further preferred scheme, cooling-water duct is designed to two-layer or two-layer above a plurality of or loop that forms, make cooling more effectively and evenly.
Description of drawings
Fig. 1 is the single-point needle-valve vertical view of the utility model embodiment;
Fig. 2 is the single-point needle-valve A-A cutaway view of Fig. 1;
Fig. 3 is the single-point needle-valve B-B cutaway view of Fig. 1;
Fig. 4 is the cross section view of cylinder body and the inner cooling-water duct thereof of the utility model embodiment;
Fig. 5 is the cylinder body of Fig. 4 and the A-A cutaway view of inner cooling-water duct thereof.
The specific embodiment
The preferred specific embodiment of contrast accompanying drawing and combination is explained in detail the utility model below.
A kind of injection moulding single-point needle-valve, comprise flow passage device, place needle in the flow passage device, place the heater of flow passage device periphery, with cylinder that places the heater periphery or oil cylinder, the piston of cylinder or oil cylinder is connected with needle, the cylinder body of cylinder or oil cylinder is square, is provided with cooling-water duct in cylinder interior.
Specifically, preferably, as Figure 1-3, injection moulding single-point needle-valve, comprise flow passage device, place the needle 21 in the flow passage device, and the heater that places the flow passage device periphery, with cylinder that places the heater periphery or oil cylinder, cylinder or oil cylinder comprise cylinder body 5, cylinder cap 1 and the inner piston 9 that is provided with, needle 21 links together with piston 9, controls pumping of needle 21 by the motion of piston 9, and needle 21 and piston 9 move simultaneously, motion has prolonged the service life of single-point needle-valve effectively with to be subjected to force direction consistent.
Shown in Fig. 4-5, the cross section of cylinder body 5 is a square, its inside is provided with but aquaporin 4, cooling-water duct 4 is divided into two-layer, every layer of cooling-water duct 4 is divided into four sections, the connecting ring coiled is approximate square successively in four sidewalls of cylinder body 5, and in cooling-water duct inlet 6 and cooling-water duct outlet (not shown) place sidewall, communicate up and down, form a loop, (in the practice, described two-layer or two-layer above cooling-water duct also can a plurality of loops of separate formation, all can realize cooling purpose), cooling-water duct inlet 6 and cooling-water duct outlet all are on the same sidewall of cylinder body 5, and every section cooling-water duct 4 is all parallel with the bottom surface of cylinder body 5.
The course of work of the present utility model: when the magnetic valve of control single-point needle valve movement received the injection signal of injection machine, piston 9 drove needle 21 motions, makes cast gate be in opening, carries out injection; When injection moulding was finished, magnetic valve received the signal that injection moulding finishes, and made piston 9 motions, drove needle 21 and did closing motion.Cooling water is in opening state always, and the heat that makes control needle 21 pistons reciprocating, 9 fricative heats in the cylinder body 5 and heater produce can in time distribute.
Above content is to further describing that the utility model is done in conjunction with concrete preferred implementation; can not assert that concrete enforcement of the present utility model is confined to these explanations; for the utility model person of an ordinary skill in the technical field; under the prerequisite that does not break away from the utility model design; make some alternative or obvious modification that are equal to; and performance or purposes are identical, all should be considered as belonging to protection domain of the present utility model.
Claims (6)
1. injection moulding single-point needle-valve, comprise flow passage device, place needle in the described flow passage device, place the heater of described flow passage device periphery, with the cylinder or the oil cylinder that place described heater periphery, the piston of described cylinder or oil cylinder is connected with described needle, it is characterized in that: the cylinder body of described cylinder or oil cylinder is square, is provided with cooling-water duct in described cylinder interior.
2. injection moulding single-point needle-valve as claimed in claim 1 is characterized in that: described cooling-water duct in described cylinder body, be divided into two-layer or two-layer more than, described every layer of cooling-water duct forms two or more loops independently of one another.
3. injection moulding single-point needle-valve as claimed in claim 1 is characterized in that: described cooling-water duct in described cylinder body, be divided into two-layer or two-layer more than, and described layer with layer between interconnect and communicate, form a loop.
4. as claim 2 or 3 described injection moulding single-point needle-valves, it is characterized in that: the cross section of described cylinder body is square, and described every layer of cooling-water duct is divided into four sections, and in four sidewalls of described cylinder body connecting ring coiled square successively.
5. injection moulding single-point needle-valve as claimed in claim 4 is characterized in that: the cooling-water duct mouth is on the same sidewall of described cylinder body.
6. injection moulding single-point needle-valve as claimed in claim 5 is characterized in that: described every section cooling-water duct is all parallel with the bottom surface of described cylinder body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120008198XU CN201970451U (en) | 2011-01-12 | 2011-01-12 | Single point needle valve for injection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120008198XU CN201970451U (en) | 2011-01-12 | 2011-01-12 | Single point needle valve for injection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201970451U true CN201970451U (en) | 2011-09-14 |
Family
ID=44575556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120008198XU Expired - Fee Related CN201970451U (en) | 2011-01-12 | 2011-01-12 | Single point needle valve for injection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201970451U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103252879A (en) * | 2012-02-15 | 2013-08-21 | 上海占瑞模具设备有限公司 | Hot runner oil pressure open-close pin type injection system |
| CN103507240A (en) * | 2013-09-18 | 2014-01-15 | 苏州好特斯模具有限公司 | Water-cooled cylinder |
| CN104441491A (en) * | 2014-12-24 | 2015-03-25 | 沈坚 | Cylinder for water-cooled single-point needle valve |
| CN106217768A (en) * | 2016-07-27 | 2016-12-14 | 苏州好特斯模具有限公司 | Thermostatic type oil gas cylinder single-point needle valve hot flow path |
-
2011
- 2011-01-12 CN CN201120008198XU patent/CN201970451U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103252879A (en) * | 2012-02-15 | 2013-08-21 | 上海占瑞模具设备有限公司 | Hot runner oil pressure open-close pin type injection system |
| CN103252879B (en) * | 2012-02-15 | 2016-01-20 | 上海占瑞模具设备有限公司 | Hot runner oil pressure open-close pin type injection system |
| CN103507240A (en) * | 2013-09-18 | 2014-01-15 | 苏州好特斯模具有限公司 | Water-cooled cylinder |
| CN104441491A (en) * | 2014-12-24 | 2015-03-25 | 沈坚 | Cylinder for water-cooled single-point needle valve |
| CN106217768A (en) * | 2016-07-27 | 2016-12-14 | 苏州好特斯模具有限公司 | Thermostatic type oil gas cylinder single-point needle valve hot flow path |
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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: 20110914 Termination date: 20130112 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |