CN207448978U - A kind of high-precision syringe injection mould - Google Patents
A kind of high-precision syringe injection mould Download PDFInfo
- Publication number
- CN207448978U CN207448978U CN201720942863.XU CN201720942863U CN207448978U CN 207448978 U CN207448978 U CN 207448978U CN 201720942863 U CN201720942863 U CN 201720942863U CN 207448978 U CN207448978 U CN 207448978U
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- core
- mold
- cavity
- locating piece
- injection mould
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model is related to technical field of mold, refer in particular to a kind of high-precision syringe injection mould, including mold, lower mold and core, mold includes levorotation chamber and right cavity, levorotation chamber and right cavity are with the use of cavity is formed, and core, which is inserted into inside the cavity, forms injection space, and core top is provided at the top of upward pin portion mold and is provided with the first locating piece, the setting of first locating piece lower part is fluted for location type core needle portion, and lower mold is provided with to fix the second locating piece of core；Lower mold is provided with the runner being connected with cavity, runner is at least provided with two, the utility model is compared with current technology, core is integrated integrated component, so as to reduce the fit tolerance of mold, refrigerating channel can have better cooling effect closer to core pin portion, mold, and core service life is extended.
Description
Technical field
The utility model is related to technical field of mold, refer in particular to a kind of high-precision syringe injection mould.
Background technology
Some advantages in needleless device and method, which include being not present, may threaten patient and for medical staff
The syringe needle of danger close.In addition, the risk of cross-infection between patient may be increased using pin injection.In addition, for using pin
There is sizable risk of the broken needle in the tissue of human or animal patient in injection device.The injection generated by needleless device is penetrated
Stream is diametrically small usually than hypodermic needle, thus in some cases, Needleless injection ratio is provided by hypodermic injection needle device
Injection pain can be less.At present, domestic needleless injection techniques are mainly used for the injection of insulin, and Needleless injection can make outer
Source absorption of insulin faster, closer to endogenous insulin, than there is pin to inject fast 15 to 20 minutes, by improving insulin for a long time
Absorption, the risk of diabetic complication can be reduced.Since drug disperse shape is into subcutaneously, it is uniformly dispersed, is not easy to plug small
Lymphatic vessel, long-time service can make subcutaneously not playing scleroma.Needleless injection is not in that syringe needle scratches and the danger that fractures and thorough
Bottom eliminates the advantages that fear to syringe needle, and therefore, the application of needleless injector is more and more common.
Needleless injector is needed by high pressure and at a high speed by liquid injection, so the aperture one on the nozzle of needleless injector
As requirement in 0.14mm between 0.29mm, can have more fragile tip portion in mold.Needleless injector nozzle is to precision
It is required that high, core is divided into pin portion and support section by current existing syringe injection mold, this can cause fit tolerance increased,
Core and cavity difficult to realize is also resulted in precisely to coordinate.Existing mold technology pin portion is connected with support zone, causes to freeze
Passage can not be more fragile tip-like at the top of core, easily because being heated and being rubbed in patternmaking process at the top of needle point
And it is damaged.
Utility model content
The utility model for problem of the prior art provide one kind can improve syringe precision, can ensure core from
It damages and ensures the syringe injection mould of the cyclinder needle percentage of A-class goods.
In order to solve the above-mentioned technical problem, the utility model adopts the following technical solution：
A kind of high-precision syringe injection mould provided by the utility model, including mold, lower mold and core, the upper mold
Tool includes levorotation chamber and right cavity, and the levorotation chamber and the right cavity, which are used cooperatively, forms cavity, described in the core insertion
Injection space is formed inside cavity, the core top is provided with upward pin portion, it is fixed that first is provided at the top of the mold
Position part, the first locating piece lower part setting is fluted for location type core needle portion, and the lower mold is provided with for fixed
Second locating piece of core；The lower mold is provided with the runner being connected with the cavity, and the runner is at least provided with two
Item.
Preferably, the core is integrally formed.
Preferably, the core is internally provided with heat dissipation channel.
Preferably, the runner is provided with two, and it is symmetrical.
Preferably, first locating piece and the pin portion are detachably fixed connection.
Preferably, the contact surface of second locating piece and the core is the conical surface.
Preferably, the mold on the lower mold with being provided with location hole.
The beneficial effects of the utility model：
A kind of high-precision syringe injection mould provided by the utility model, including mold, lower mold and core, the upper mold
Tool includes levorotation chamber and right cavity, and the levorotation chamber and the right cavity, which are used cooperatively, forms cavity, described in the core insertion
Injection space is formed inside cavity, the core top is provided with upward pin portion, it is fixed that first is provided at the top of the mold
Position part, the first locating piece lower part are provided with the groove being used cooperatively with the pin portion, the lower mold be provided with it is described
The runner that cavity is connected, at least provided with two, the lower mold is provided with to fix the second of core the runner
Locating piece；For the utility model compared with current technology, core is integrated integrated component, so as to reduce the fit tolerance of mold,
Refrigerating channel can have better cooling effect closer to core pin portion, mold, and core service life is extended, also noted
Modeling runner is provided with multiple, and plastic cement further prevents core from shifting, with true the impact force of core when can reduce injection
Protect the certified products productivity of syringe.
Description of the drawings
Fig. 1 is the structure diagram of the utility model.
Fig. 2 is the sectional view of the utility model.
Fig. 3 is the enlarged diagram at A in Fig. 2.
Reference numeral is respectively：
Mold -- 1, levorotation chamber -- 11, right cavity -- 12, cavity -- 13, it is molded space -- 14, the first locating piece -- 15,
Groove -- 16, lower mold -- 2, runner -- 21, the second locating piece -- 22, core -- 3, pin portion -- 31, heat dissipation channel -- 32, it is fixed
Position hole -- 4.
Specific embodiment
For the ease of the understanding of those skilled in the art, the utility model is made with reference to embodiment and attached drawing further
Explanation, the content that embodiment refers to not is restriction to the utility model.The utility model is carried out below in conjunction with attached drawing
Detailed description.
A kind of high-precision syringe injection mould provided by the utility model, it is described including mold 1, lower mold 2 and core 3
Mold 1 includes levorotation chamber 11 and right cavity 12, and the levorotation chamber 11 and the right cavity 12, which are used cooperatively, forms cavity 13, institute
State core 3 and be inserted into 13 inside of the cavity and form injection space, 3 top of core is provided with upward pin portion 31, it is described on
1 top of mold is provided with the first locating piece 15, and 15 lower part of the first locating piece is provided with what is be used cooperatively with the pin portion 31
Groove 16, the lower mold 2 are provided with to fix lower mold 2 described in the second locating piece 22 of core 3 and are provided with and the type
The connected runner 21 of chamber 13, the runner 21 is at least provided with two；Compared with current technology, core is the utility model
The component integrated, so as to reduce the fit tolerance of mold, refrigerating channel can have more preferable closer to core pin portion, mold
Cooling effect, core service life extended.
Existing mold divides core 3 for pin portion 31 and support section, this can cause fit tolerance increased, and can also lead
Core 3 and cavity 13 difficult to realize is caused precisely to coordinate, is dropped so as to cause a series of problem such as product defects and 31 service life of pin portion
Low, to prevent error problem, the core 3 is integrally formed.
The core 3 is internally provided with heat dissipation channel 32, convenient short to the syringe and core 3 of injection molding in injection
Heat dissipation, prevents temperature excessively high to irreversible deformed damaged caused by pin portion 31 in time.
In order to further reduce the displacement of core 3, the runner 21 is provided with two, and symmetrical, symmetrical point
The runner 21 of cloth flows into plastic cement at the both ends of core 3, can prevent core 3 because the impact of injection moulding plastic is shifted over, further
Improve the yield rate of syringe.
In the present embodiment, first locating piece 15 and the pin portion 31 are detachably fixed connection, convenient in injection molding
Syringe is removed from the molds afterwards, and reduces the damage to pin portion 31.
In the present embodiment, the contact surface of second locating piece 22 and the core 3 is the conical surface, can increase by the second locating piece
22 with the contact area of core 3, increase forced area.
In the present embodiment, the mold 1 facilitates mold being installed on life with being provided with location hole 4 on the lower mold 2
Production workshop is used cooperatively with other component.
The above is only the utility model preferred embodiment, and not the utility model is made in any form
Limitation, although the utility model is disclosed as above with preferred embodiment, is not limited to the utility model, any to be familiar with sheet
Technical professional is not being departed from the range of technical solutions of the utility model, is made when using the technology contents of the disclosure above
A little change or the equivalent embodiment for being modified to equivalent variations, as long as being without departing from the content of the technical scheme of the utility model, foundation
The utility model technology refers to any simple modification, equivalent change and modification made to above example, belongs to this practicality
In the range of new technique scheme.
Claims (7)
1. a kind of high-precision syringe injection mould, it is characterised in that：Including mold（1）, lower mold（2）And core（3）, it is described on
Mold（1）Including levorotation chamber（11）With right cavity（12）, the levorotation chamber（11）With the right cavity（12）With the use of formation
Cavity（13）, the core（3）It is inserted into the cavity（13）Inside forms injection space, the core（3）Top sets oriented
On pin portion（31）, the mold（1）Top is provided with the first locating piece（15）, first locating piece（15）Lower part is set
It is fluted（16）For location type core needle portion（31）, the lower mold（2）It is provided with to fix core（3）The second locating piece
（22）；The lower mold（2）It is provided with and the cavity（13）Connected runner（21）, the runner（21）At least set
There are two.
2. a kind of high-precision syringe injection mould according to claim 1, it is characterised in that：The core（3）It is integrally formed.
3. a kind of high-precision syringe injection mould according to claim 2, it is characterised in that：The core（3）Inside is set
There is heat dissipation channel（32）.
4. a kind of high-precision syringe injection mould according to claim 1, it is characterised in that：The runner（21）It is provided with
Two, and it is symmetrical.
5. a kind of high-precision syringe injection mould according to claim 1, it is characterised in that：First locating piece（15）With
The pin portion（31）It is detachably fixed connection.
6. a kind of high-precision syringe injection mould according to claim 1, it is characterised in that：Second locating piece（22）With
The core（3）Contact surface be the conical surface.
7. a kind of high-precision syringe injection mould according to claim 1, it is characterised in that：The mold（1）With it is described
Lower mold（2）On be provided with location hole（4）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720942863.XU CN207448978U (en) | 2017-07-31 | 2017-07-31 | A kind of high-precision syringe injection mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720942863.XU CN207448978U (en) | 2017-07-31 | 2017-07-31 | A kind of high-precision syringe injection mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207448978U true CN207448978U (en) | 2018-06-05 |
Family
ID=62247817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720942863.XU Active CN207448978U (en) | 2017-07-31 | 2017-07-31 | A kind of high-precision syringe injection mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207448978U (en) |
-
2017
- 2017-07-31 CN CN201720942863.XU patent/CN207448978U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |