CN214266447U - Needle valve type nozzle of injection molding machine - Google Patents
Needle valve type nozzle of injection molding machine Download PDFInfo
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- CN214266447U CN214266447U CN202022748041.2U CN202022748041U CN214266447U CN 214266447 U CN214266447 U CN 214266447U CN 202022748041 U CN202022748041 U CN 202022748041U CN 214266447 U CN214266447 U CN 214266447U
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- needle valve
- mouth
- penetrate
- valve mechanism
- injection molding
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Abstract
The utility model discloses an injection molding machine needle valve formula nozzle, this kind of injection molding machine needle valve formula nozzle include penetrate the mouth body, penetrate mouth and needle valve mechanism, penetrate mouth body head threaded connection and have penetrate the mouth, penetrate the mouth body and penetrate the mouth junction and inlay and be equipped with needle valve mechanism, penetrate mouth body axial and be provided with the one-level round platform compression passageway, the tubular transfer passage of circle, second grade compression pipe passageway and the internal thread hole that connect gradually, be equipped with needle valve mechanism in the second grade compression pipe passageway, be equipped with toper storage appearance chamber and discharge gate in penetrating the mouth, needle valve mechanism's fire arrow point is relative with the discharge gate, and fused plastics are carried to toper storage appearance chamber from penetrating the mouth body, and the needle valve through needle valve mechanism reciprocates, makes fused plastics jet out through the discharge gate that penetrates the mouth. In this way, the utility model discloses structural design is ingenious, can once mould plastics fused plastics through needle valve mechanism, and the single ration is moulded plastics, can the anti-return with prevent leaking.
Description
Technical Field
The utility model relates to a mouth technical field is penetrated in the moulding plastics, especially relates to a nozzle is penetrated to injection molding machine needle valve formula.
Background
In general, injection molding is performed by injecting molten plastic at a high temperature into a mold through an injection nozzle, usually by using an oil pressure or pneumatic device, operating a rotatable screw or auger, extruding the plastic in a molten state from the injection nozzle, injecting the plastic into the mold, meanwhile, the heating device is used for keeping the plastic in a molten state, when the mold is filled, the injection molding screw rod retreats, at the moment, more plastic remains between the injection molding opening and the feeding channel, so that the so-called 'shrinkage' phenomenon is easily generated, so that the product formed in the mold is easy to deform, the existing nozzle structure causes the plastic to leak from the injection opening to the outside to form the so-called 'wire dragging' phenomenon, in addition, the plastic may flow backwards to form a backflow phenomenon, which affects the appearance of the molded product, and based on the above defects and shortcomings, there is a need to improve the prior art and design a needle valve type nozzle of an injection molding machine.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the main technical problem who solves provides an injection molding machine needle valve formula nozzle, and structural design is ingenious, can once mould plastics fused plastics through needle valve mechanism, and the single ration is moulded plastics, can the anti-return with prevent leaking.
In order to solve the technical problem, the utility model discloses a technical scheme be: the needle valve type nozzle of the injection molding machine comprises a nozzle body, a nozzle and a needle valve mechanism, wherein the head of the nozzle body is in threaded connection with the nozzle, the needle valve mechanism is embedded at the joint of the nozzle body and the nozzle, a first-stage circular platform compression channel, a circular pipe-shaped conveying channel, a second-stage compression circular pipe channel and an internal thread hole which are sequentially connected are axially arranged on the nozzle body, the needle valve mechanism is arranged in the second-stage compression circular pipe channel, a conical storage containing cavity and a discharge hole are formed in the nozzle, a fire arrow of the needle valve mechanism is opposite to the discharge hole, molten plastic is conveyed to the conical storage containing cavity from the nozzle body, and the molten plastic is ejected out through the discharge hole of the nozzle through the reciprocating action of the needle valve mechanism.
Preferably, needle valve mechanism includes cylinder, spring, needle valve, crosses rubber ring and fire arrow point, the cylinder diameter of axle is less than second grade compression pipe passageway aperture, the cylinder list head is provided with seals the embedded hole, is equipped with the spring in the embedded hole, and the spring other end is connected with the needle valve, and the needle valve is connected with the fire arrow point after passing the rubber ring.
Preferably, the rubber ring comprises a cone part, a connecting part and an inserting part which are connected in sequence, the inserting part is inserted into the embedded hole, the outer walls of the connecting part and the inserting part are abutted to the inner wall of the nozzle body, and the rubber ring is provided with a material passing through hole communicated with the circular tube-shaped conveying channel.
Preferably, the fire arrow head comprises a blocking conical head part and a mounting part, and the mounting part is movably inserted in the conical part.
Compared with the prior art, the beneficial effects of the utility model are that:
structural design is ingenious, can once mould plastics fused plastics through needle valve mechanism, and single ration is moulded plastics, can the anti-return with prevent leaking.
Drawings
FIG. 1 is a schematic view of the internal structure of a needle valve nozzle of an injection molding machine.
FIG. 2 is an enlarged view of a portion of a needle valve nozzle of an injection molding machine.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided to enable those skilled in the art to more easily understand the advantages and features of the present invention, and to make clear and definite definitions of the protection scope of the present invention.
Referring to fig. 1 and 2, an embodiment of the present invention includes:
the utility model provides an injection molding machine needle valve formula nozzle, this kind of injection molding machine needle valve formula nozzle include nozzle body 1, nozzle 2 and needle valve mechanism 3, 1 head threaded connection of nozzle body has nozzle 2, and nozzle body 1 and nozzle 2 junction are inlayed and are equipped with needle valve mechanism 3, nozzle body 1 axial is provided with the one-level round platform compression passageway 11, the tubular transfer passage 12 of circle, second grade compression pipe passageway 13 and internal thread hole 14 that connect gradually, is equipped with needle valve mechanism 3 in the second grade compression pipe passageway 13, be equipped with toper storage chamber 21 and discharge gate 22 in the nozzle 2, the arrow point 35 of a fire of needle valve mechanism 3 is relative with discharge gate 22, and fused plastics are carried to toper storage chamber 21 from nozzle body 1, and the round trip action of needle valve 33 through needle valve mechanism 3 makes fused plastics jet out through nozzle 2's discharge gate 22.
The rubber ring 34 comprises a cone 341, a connecting part 342 and an inserting part 343 which are connected in sequence, the inserting part 343 is inserted into the inner embedding hole 311, the outer walls of the connecting part 342 and the inserting part 343 are abutted against the inner wall of the nozzle body 1, and the rubber ring 34 is provided with a material passing through hole 340 communicated with the circular tube-shaped conveying channel 12.
The hot arrow 35 includes a blocking cone head 351 and a mounting portion 352, and the mounting portion 352 is removably inserted into the cone 341.
The utility model relates to an injection molding machine needle valve formula nozzle during operation, fused plastics are from the one-level round platform compression passageway 11 who jets mouth body 1, pipe shape transfer passage 12, second grade compression pipe passageway 13 is carried to crossing rubber ring 34 department, it holds chamber 21 to pass to go into toper storage behind material through-hole 340, fused plastics are located between rubber ring 34 and the arrow head 35, fused plastics are piled up and are changeed, spring 32 is compressed, needle valve 33 drives arrow head 35 and moves backward, fused plastics jets out through the discharge gate 22 who jets mouth 2, once mould plastics after going out, spring 32 opens under the spring action, needle valve 33 drives arrow head 35 and moves forward, arrow head 35 blocks up the discharge gate 22 who jets mouth 2, the needle valve 33 through needle valve mechanism 3 reciprocates, make fused plastics jet out and the shutoff through jetting mouth 2.
The utility model relates to a nozzle is penetrated to injection molding machine needle valve formula, structural design is ingenious, can once mould plastics fused plastics through needle valve mechanism, and the single ration is moulded plastics, can the anti-return with prevent leaking.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (4)
1. The needle valve type nozzle of the injection molding machine is characterized in that: this kind of injection molding machine needle valve formula nozzle is including penetrating the mouth body, penetrating mouth and needle valve mechanism, penetrate mouth body head threaded connection and penetrate the mouth, penetrate the mouth body and penetrate the mouth junction and inlay and be equipped with needle valve mechanism, penetrate mouth body axial and be provided with the one-level round platform compression passageway, the tubular transfer passage of circle, second grade compression pipe passageway and the internal thread hole that connect gradually, be equipped with needle valve mechanism in the second grade compression pipe passageway, it holds chamber and discharge gate to be equipped with toper storage in the mouth to penetrate, and needle valve mechanism's arrow point is relative with the discharge gate, and fused plastics are carried to toper storage from penetrating the mouth body and are held the chamber, and the needle valve through needle valve mechanism reciprocates, makes fused plastics jet out through the discharge gate that penetrates the mouth.
2. A needle valve nozzle for an injection molding machine as defined in claim 1, wherein: needle valve mechanism includes cylinder, spring, needle valve, crosses rubber ring and fire arrow point, the cylinder diameter of axle is less than second grade compression pipe passageway aperture, the cylinder single-end is provided with seals the embedded hole, is equipped with the spring in the embedded hole, and the spring other end is connected with the needle valve, and the needle valve is connected with the fire arrow point after passing the rubber ring.
3. A needle valve nozzle for an injection molding machine as defined in claim 2, wherein: the rubber ring comprises a cone part, a connecting part and an inserting part which are connected in sequence, the inserting part is inserted into the embedded hole, the outer walls of the connecting part and the inserting part are abutted to the inner wall of the nozzle body, and a material passing through hole communicated with the circular tube-shaped conveying channel is formed in the rubber ring.
4. The needle valve nozzle of an injection molding machine according to claim 2, wherein: the fire arrow head comprises a blocking conical head part and a mounting part, and the mounting part is movably inserted in the conical part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022748041.2U CN214266447U (en) | 2020-11-24 | 2020-11-24 | Needle valve type nozzle of injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022748041.2U CN214266447U (en) | 2020-11-24 | 2020-11-24 | Needle valve type nozzle of injection molding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214266447U true CN214266447U (en) | 2021-09-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022748041.2U Active CN214266447U (en) | 2020-11-24 | 2020-11-24 | Needle valve type nozzle of injection molding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214266447U (en) |
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2020
- 2020-11-24 CN CN202022748041.2U patent/CN214266447U/en active Active
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