CN211891776U - Injection mold capable of preventing puncture needle head from curling - Google Patents
Injection mold capable of preventing puncture needle head from curling Download PDFInfo
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- CN211891776U CN211891776U CN201922267272.9U CN201922267272U CN211891776U CN 211891776 U CN211891776 U CN 211891776U CN 201922267272 U CN201922267272 U CN 201922267272U CN 211891776 U CN211891776 U CN 211891776U
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- puncture needle
- movable
- cover half
- mould
- curling
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Abstract
The utility model belongs to medical instrument processing equipment field, concretely relates to can prevent injection mold that puncture syringe needle is curled, including cover half and movable mould, set up cover half benevolence on the cover half, have the cover half die cavity that is used for holding puncture needle file on the cover half benevolence, be used for the runner system of injecting glue and be used for fixing a position the cover half of puncture needle file and inlay the needle, set up the movable mould benevolence relative with the cover half benevolence on the movable mould, all have on movable mould and the movable mould benevolence and supply puncture needle tubing male through-hole, the through-hole bottom of movable mould sets up the elastic module who corresponds with. The utility model relates to a rationally, simple structure, absorb the compound die through elastic module and to the impact force of process of moulding plastics to puncture needle tubing, ensure that puncture needle tubing is intact harmless, can not warp.
Description
Technical Field
The utility model belongs to medical instrument processing equipment field, concretely relates to can prevent injection mold that the syringe needle curls.
Background
The puncture needle has wide application, and is widely applied to various purposes and uses such as extracting cerebrospinal fluid, renal fluid or injecting medicaments. The existing puncture needle is mainly provided with a plurality of puncture needle tubes and a puncture needle tube seat which are combined and bonded through an insert embedding injection molding process, and the problems of deformation and needle point stress bending of the puncture needle tubes due to stress easily occurring in the injection molding process are solved.
Based on the problems, the applicant provides an injection mold capable of preventing a puncture needle head from curling, by fully analyzing a puncture needle structure and a mold injection molding principle and optimizing an injection molding pouring system, the flow direction of injection molding plastic is improved, the friction and impact force of the injection molding process on the puncture needle tube are reduced, and meanwhile, a damping mechanism is designed on the mold to absorb the stress of the puncture needle tube from mold closing and injection molding processes.
SUMMERY OF THE UTILITY MODEL
In order to compensate the defects of the prior art, the utility model provides an injection mold technical scheme that can prevent the puncture needle head from curling.
The injection mold capable of preventing the puncture needle from being curled is characterized by comprising a fixed mold and a movable mold, wherein the fixed mold is provided with a fixed mold core, the fixed mold core is provided with a fixed mold cavity for accommodating the puncture needle seat, a runner system for injecting glue and a fixed mold insert for positioning the puncture needle seat, the movable mold is provided with a movable mold core relative to the fixed mold core, the movable mold and the movable mold core are respectively provided with a through hole for inserting the puncture needle tube, and the bottom of the through hole of the movable mold is provided with an elastic module corresponding to the needle point of the puncture needle tube.
The injection mold capable of preventing the puncture needle from curling is characterized in that the elastic module comprises a cushion block and a spring which are sequentially arranged from top to bottom.
The injection mold capable of preventing the puncture needle from curling is characterized in that a screw is arranged at the bottom of a through hole of a movable mold, and a spring is arranged at the upper end of the screw.
The injection mold capable of preventing the puncture needle from curling is characterized in that a sprue of a runner system is positioned on the side surface of the joint of a fixed mold core and a movable mold core.
The injection mold capable of preventing the puncture needle head from curling is characterized in that a movable mold insert for inserting and positioning the puncture needle tube is embedded in a through hole of a movable mold core.
The injection mold capable of preventing the puncture needle from being curled is characterized in that the movable mold comprises a base, a movable mold fixing plate, a supporting block and a movable mold supporting plate from bottom to top, and a movable mold core is arranged on the movable mold supporting plate.
The injection mold capable of preventing the puncture needle from curling is characterized in that a thimble base plate and a thimble panel for the puncture needle tube to pass through are fixedly connected between a movable mold fixing plate and a movable mold supporting plate.
The utility model relates to a rationally, simple structure, absorb the compound die through elastic module and to the impact force of process of moulding plastics to puncture needle tubing, ensure that puncture needle tubing is intact harmless, can not warp.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of FIG. 1 at A;
fig. 3 is a schematic view of a partial structure of a flow channel system according to the present invention;
fig. 4 is a schematic top view of the flow channel system of the present invention.
In the figure: the device comprises a fixed die core 1, a fixed die insert 2, a runner system 3, a movable die core 4, a movable die insert 5, a puncture needle tube 6, an ejector pin panel 7, an ejector pin bottom plate 8, a movable die fixing plate 9, a cushion block 10, a spring 11, a screw 12, a pouring gate 13, a puncture needle seat 14, a needle point 15, a movable die 16, a fixed die 17, a base 18, a supporting block 19 and a movable die supporting plate 20.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in the figure, an injection mold capable of preventing a puncture needle head from being curled comprises a fixed mold 17 and a movable mold 16, wherein the fixed mold 17 is provided with a fixed mold core 1, the fixed mold core 1 is provided with a fixed mold cavity for accommodating a puncture needle seat 14, a runner system 3 for injecting glue and a fixed mold insert 2 for positioning the puncture needle seat 14, the movable mold 16 is provided with a movable mold core 4 opposite to the fixed mold core 1, the movable mold 16 and the movable mold core 4 are respectively provided with a through hole for inserting the puncture needle tube 6, and the bottom of the through hole of the movable mold is provided with an elastic module corresponding to a needle point 15 of the puncture needle tube 6.
As the utility model discloses an optimize structure: the elastic module comprises a cushion block 10 and a spring 11 which are arranged in sequence from top to bottom. Wherein, the cushion block 10 is made of rubber material, the cushion block 10 is contacted with the needlepoint 15 of the puncture needle tube 6, and the spring 11 is used for bearing and absorbing pressure.
As the utility model discloses an optimize structure: the screw 12 is arranged at the bottom of the through hole of the movable die 16, and the spring 11 is arranged at the upper end of the screw 12.
As the utility model discloses an optimize structure: the gate 13 of the runner system 3 corresponds to the side of the joint of the core insert 1 and the core insert 4. Wherein, the gate 13 is a point gate, the gate 13 is located at the side of the product glue position, and the material is directly contacted with the movable mould core 4 during injection molding, so as to avoid directly impacting the puncture needle tube 6.
As the utility model discloses an optimize structure: a moving mold insert 5 for inserting and positioning a puncture needle tube 6 is embedded in the through hole of the moving mold core 4. The movable mould insert pin 5 is embedded in the movable mould core 4, so that the processing and the replacement are convenient. The movable mould insert needle 5 is provided with an inner hole which is matched with the puncture needle tube 6, and the movable mould insert needle 5 has the functions of positioning and sealing glue.
As the utility model discloses an optimize structure: the movable mold 16 comprises a base 18, a movable mold fixing plate 9, a supporting block 19 and a movable mold supporting plate 20 which are fixedly connected in sequence from bottom to top, the movable mold core 4 is arranged on the movable mold supporting plate 20, and the elastic module is arranged on the base 18.
As the utility model discloses an optimize structure: an ejector pin base plate 8 and an ejector pin panel 7 for the puncture needle tube 6 to pass through are fixedly connected between the movable mould fixing plate 9 and the movable mould supporting plate 20.
The utility model discloses a mould divides cover half 17 and movable mould 16 two parts, and cover half 17 and movable mould 16 are the same with prior art in principle, and in putting into the movable mould during production and inlaying the locating hole of needle 5 with puncture needle tubing 6, the needle is inlayed to compound die process cover half 2 and the needle file hole of inserting, and the whole location of pjncture needle has been accomplished to this process. For reducing pjncture needle process of moulding plastics atress, the utility model relates to a side runner 13 advances to glue, and the plastic flows into the movable mould through the side and inlays needle 5 periphery, then forms to merge, has both avoided advancing gluey mouth and openly inlays needle 5 to the movable mould, inlays needle 5 to the movable mould and produces the impact force, reduces plastic simultaneously and flows into the movable mould and inlays needle 5 peripheral velocity of flow and direction, has reduced 6 vertical direction lifting surface of puncture needle pipe, reduces the impact force that the process of moulding plastics inlayed needle 5 to the movable mould.
The utility model provides a puncture needle tube 6 puts into movable mould 4 back and 1 compound dies of cover half, inlays needle 2 and inserts puncture needle file 14 holes and play the smart positioning action at the compound die in-process cover half, and the impact force about can producing puncture needle tube 6 at this process, and the needle point 15 of puncture needle tube 6 can be used to the reason power, leads to the easy atress of needle point 15 crooked, for avoiding needle point 15 atress afterbending, the utility model designs a spring 11 and rubber pad 10, contacts rubber pad 10 behind the 15 atress of needle point to through rubber pad 10 and the 11 shrink deformation of spring, play the cushioning effect to needle point 15, avoid wearing the 15 atress afterdeformations bending of point.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (7)
1. The utility model provides an injection mold that can prevent puncture syringe needle curling, its characterized in that includes cover half (17) and movable mould (16), set up cover half mould benevolence (1) on cover half (17), the cover half mould chamber that is used for holding puncture needle file (14) has on cover half mould benevolence (1), be used for runner system (3) of injecting glue and be used for fixing a position the cover half of puncture needle file (14) and inlay needle (2), set up movable mould benevolence (4) relative with cover half mould benevolence (1) on movable mould (16), all have the through-hole that supplies puncture needle tubing (6) to insert on movable mould (16) and the movable mould benevolence (4), the through-hole bottom of movable mould sets up the elasticity module that corresponds with needle point (15) of puncture.
2. An injection mould capable of preventing the curling of the puncture needle according to claim 1, wherein the elastic module comprises a cushion block (10) and a spring (11) which are arranged in sequence from top to bottom.
3. An injection mold capable of preventing curling of a puncture needle according to claim 2, wherein the movable mold (16) is provided with a screw (12) at the bottom of the through hole, and the spring (11) is provided at the upper end of the screw (12).
4. An injection mould according to any one of claims 1-3, characterized in that the gate (13) of the runner system (3) is located at the side of the junction of the cavity block (1) and the cavity block (4).
5. An injection mold capable of preventing a puncture needle from curling as claimed in claim 4, wherein the through hole of the movable mold core (4) is embedded with a movable mold insert (5) for inserting and positioning the puncture needle tube (6).
6. An injection mold capable of preventing the curling of the puncture needle head as claimed in any one of claims 1 to 3, wherein the movable mold (16) comprises a base (18), a movable mold fixing plate (9), a supporting block (19) and a movable mold supporting plate (20) from bottom to top, and the movable mold core (4) is arranged on the movable mold supporting plate (20).
7. An injection mold capable of preventing a puncture needle from curling as claimed in claim 6, wherein the movable mold fixing plate (9) and the movable mold supporting plate (20) are fixedly connected with a thimble base plate (8) and a thimble panel (7) for the puncture needle (6) to pass through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922267272.9U CN211891776U (en) | 2019-12-17 | 2019-12-17 | Injection mold capable of preventing puncture needle head from curling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922267272.9U CN211891776U (en) | 2019-12-17 | 2019-12-17 | Injection mold capable of preventing puncture needle head from curling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211891776U true CN211891776U (en) | 2020-11-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922267272.9U Active CN211891776U (en) | 2019-12-17 | 2019-12-17 | Injection mold capable of preventing puncture needle head from curling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211891776U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113650241A (en) * | 2021-07-27 | 2021-11-16 | 宁波均胜群英汽车系统股份有限公司 | Pouring gate for thin-wall injection molding |
| CN116834230A (en) * | 2023-08-31 | 2023-10-03 | 成都宝利根创科电子有限公司 | Micro needle tube plastic-embedding forming mould structure |
-
2019
- 2019-12-17 CN CN201922267272.9U patent/CN211891776U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113650241A (en) * | 2021-07-27 | 2021-11-16 | 宁波均胜群英汽车系统股份有限公司 | Pouring gate for thin-wall injection molding |
| CN116834230A (en) * | 2023-08-31 | 2023-10-03 | 成都宝利根创科电子有限公司 | Micro needle tube plastic-embedding forming mould structure |
| CN116834230B (en) * | 2023-08-31 | 2023-11-14 | 成都宝利根创科电子有限公司 | Micro needle tube plastic-embedding forming mould structure |
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