CN210257064U

CN210257064U - Needle valve type heat flow component

Info

Publication number: CN210257064U
Application number: CN201920847543.5U
Authority: CN
Inventors: 曾云; 段五华; 阮国钊; 肖源强
Original assignee: Shenzhen Maiaisi Technology Co Ltd
Current assignee: Shenzhen Maiaisi Technology Co Ltd
Priority date: 2019-06-06
Filing date: 2019-06-06
Publication date: 2020-04-07
Anticipated expiration: 2029-06-06

Abstract

The utility model discloses a needle valve formula heat flow subassembly, including hot mouth body, needle, mouth core and runner cover, be connected with the mouth core on the hot mouth body, be connected with the runner cover on mouth core and the hot mouth body jointly, be equipped with the needle between hot mouth body and the mouth core, needle and mouth core and runner cover cooperate simultaneously, the needle all has the tapering with the mouth core, and needle and mouth core seal glue cooperation, mouth core head cooperatees with the runner cover mouth, leave the sharp passageway of mouth between needle and the mouth core, leave the heat flow channel between needle and the hot mouth body. The utility model discloses an utilize the mobility and the hot pressing effect of heat flow channel, promote the mixed flow wheel in the hot runner and rotate to mix the residue and the colloid of heat flow channel inner wall, thereby make the effect that the hot mouth subassembly was moulded plastics keep the color uniformity, avoid causing the product to take place the colour mixture or stay the problem of spot, guarantee the appearance quality of product.

Description

Needle valve type heat flow component

Technical Field

The utility model relates to a hot runner mold technical field especially relates to a needle valve formula heat flow subassembly.

Background

In the field of injection molds, a hot runner system is often adopted to improve the quality of injection molding, and a hot flow component in the hot runner system is an important component of the hot runner system, and raw materials such as colloid and the like are injected into the mold through the hot flow component to realize the function of injection molding;

and the raw materials are remained to the heat flow channel inner wall of traditional heat flow subassembly, have taken place phenomenons such as rotten yellow easily for a long time, when moulding plastics next time, inject into the mould with the colloid easily, cause the product to cause phenomenons such as colour mixture yellow easily, cause the quality of product to appear the problem of discounting.

Disclosure of Invention

The utility model aims at solving the problems existing in the prior art and providing a needle valve type heat flow component.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a needle valve formula heat flow subassembly, includes hot mouth body, needle, mouth core and runner cover, be connected with the mouth core on the hot mouth body, be connected with the runner cover on mouth core and the hot mouth body jointly, be equipped with the needle between hot mouth body and the mouth core, needle and mouth core and runner cover cooperate simultaneously, needle and mouth core all have the tapering, and needle and mouth core seal glue the cooperation, mouth core head and runner cover cooperate, leave the sharp passageway of mouth between needle and the mouth core, leave the hot flow channel between needle and the hot mouth body, install the mixed flow device between hot mouth body and the contact tip of mouth core.

Preferably, the flow mixing device comprises an upper flow plug and a lower flow plug, the upper flow plug is matched with one end of the hot nozzle body close to the nozzle core, two symmetrical through holes are formed in the upper flow plug, the lower flow plug is fixed below the upper flow plug, hot runners are formed in the positions, corresponding to the two through holes, of the lower flow plug, discharge holes are formed in one ends, corresponding to the two hot runners, of the lower flow plug, the lower flow plug is located on the two hot runners and is connected with flow mixing wheels in a rotating mode, and the upper ends of the two flow mixing wheels are matched with the lower end of the upper flow plug.

Preferably, a flow guiding slope is arranged at the position of the upper flow plug, which is close to the through hole.

Preferably, one end of the upper flow plug close to the hot nozzle body is integrally formed with a threaded ring, the threaded ring is screwed on the hot nozzle body, the lower flow plug is fixed on the upper flow plug through a screw, and the valve needle penetrates through the upper flow plug and the lower flow plug.

Preferably, the discharge hole is communicated with a nozzle tip channel, and the hot flow channel is communicated with the through hole, the hot runner and the discharge hole.

Preferably, the position of the mouth core corresponding to the down flow plug is provided with an end face, and the lower surface of the down flow plug is matched on the end face of the mouth core.

Compared with the prior art, the utility model has the following benefits:

1. the utility model utilizes the fluidity and the hot-pressing effect of the hot flow channel to push the mixed flow wheel in the hot flow channel to rotate, thereby mixing the residues and the colloid on the inner wall of the hot flow channel, keeping the color consistency of the injection molding effect of the hot nozzle component, avoiding the problem of color mixing or spot leaving of the product and ensuring the appearance quality of the product;

2. by utilizing the fluidity and the hot-pressing effect of the hot-flow channel, a power assembly is not required to be added for mixing, the mixing cost of the surplus materials of the hot-flow channel is reduced, and the flow energy and the hot-pressing effect of the hot-flow channel are fully utilized.

Drawings

Fig. 1 is a structural diagram of a needle valve type heat flow assembly according to the present invention;

fig. 2 is an enlarged view of a portion a of a needle valve type heat flow assembly according to the present invention;

fig. 3 is a top view of an upstream plug of a needle valve type heat flow assembly according to the present invention;

fig. 4 is a top view of a lower plug of a needle valve type heat flow assembly according to the present invention.

In the figure: the hot nozzle comprises a hot nozzle body 1, a sprue bush 2, a nozzle core 3, a nozzle tip channel 4, a hot flow channel 5, a valve needle 6, a threaded ring 7, an upper flow plug 8, a lower flow plug 9, a discharge hole 10, a hot runner 11, a mixed flow wheel 12 and a through hole 13.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-4, a needle valve type heat flow assembly comprises a hot nozzle body 1, a valve needle 6, a nozzle core 3 and a sprue bush 2, wherein the hot nozzle body 1 is connected with the nozzle core 3, the nozzle core 3 and the hot nozzle body 1 are jointly connected with the sprue bush 2, the valve needle 6 is arranged between the hot nozzle body 1 and the nozzle core 3, the valve needle 6 is simultaneously matched with the nozzle core 3 and the sprue bush 2, the valve needle 6 and the nozzle core 3 both have conicity, the valve needle 6 is matched with the nozzle core 3 by sealing glue, the head part of the nozzle core 3 is matched with the opening of the sprue bush 2, a nozzle tip channel 4 is reserved between the valve needle 6 and the nozzle core 3, a hot flow channel 5 is reserved between the valve needle 6 and the hot nozzle body 1, a mixed flow device is arranged between the contact ends of the hot nozzle body 1 and the nozzle core 3, through the close fit of hot nozzle body 1, mouth core 3, needle 6 etc. avoid taking place to hide gluey problem, avoid injection moulding product to take place colour mixture, turn yellow and stay spot scheduling problem through the mixed flow device.

Further, the mixed flow device includes plug 8 and lower plug 9 that flows, the one end cooperation that hot nozzle body 1 is close to mouth core 3 has plug 8 that flows, two through-holes 13 of symmetry have been seted up on plug 8 that flows, plug 8 is fixed with lower plug 9 down, hot runner 11 has all been seted up to the position that plug 9 that flows down corresponds two through-holes 13, discharge opening 10 has all been seted up to the one end that plug 9 corresponds two hot runners 11 that flows down, plug 9 that flows down all rotates on being located two hot runners 11 and is connected with mixed flow wheel 12, the upper end cooperation of two mixed flow wheels 12 is at plug 8 lower extreme that flows up.

Furthermore, a flow guiding slope is arranged at the position of the upper flow plug 8 close to the through hole 13. The one end integrated into one piece that upward flow stopper 8 is close to hot nozzle body 1 has screw ring 7, and screw ring 7 threaded connection is on hot nozzle body 1, lower stopper 9 passes through the screw to be fixed on upward flow stopper 8, needle 6 passes upward flow stopper 8 and lower stopper 9, upward flow stopper 8 accessible screw ring 7 is fixed on hot nozzle body 1, be convenient for each position of thermal current subassembly to divide and tear, lower stopper 9 is when hot runner 11 corresponds good through-hole 13, accessible screw is fixed on upward flow stopper 8.

Furthermore, the discharge hole 10 is communicated with the nozzle tip channel 4, and the hot flow channel 5 is communicated with the through hole 13, the hot runner 11 and the discharge hole 10, so that the colloid in the hot flow channel 5 can flow into the nozzle tip channel 4 for injection molding. The position of the nozzle core 3 corresponding to the lower flow plug 9 is provided with an end face, and the lower surface of the lower flow plug 9 is matched on the end face of the nozzle core 3, so that the lower flow plug 9 is stabilized between the nozzle core 3 and the hot nozzle body 1.

The utility model discloses during the use, the colloid passes through hot flow channel 5 on through-hole 13 of plug 8 enters into hot runner 11, through hot pressing effect of hot flow channel 5, promotes mixed flow wheel 12 and rotates for the residue of hot flow channel 5 inner wall mixes with the colloid, then discharges from discharge opening 10, and the residue of hot flow channel 5 inner wall mixes with the colloid, can prevent to take place the colour mixture problem, makes the product colour keep the uniformity.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A needle valve type heat flow component comprises a hot nozzle body (1), a valve needle (6), a nozzle core (3) and a sprue bush (2), it is characterized in that the hot nozzle body (1) is connected with a nozzle core (3), the nozzle core (3) and the hot nozzle body (1) are jointly connected with a sprue bush (2), a valve needle (6) is arranged between the hot nozzle body (1) and the nozzle core (3), the valve needle (6) is matched with the nozzle core (3) and the sprue bush (2) at the same time, the valve needle (6) and the nozzle core (3) both have conicity, the valve needle (6) is matched with the nozzle core (3) by sealing glue, the head part of the nozzle core (3) is matched with the opening of the sprue bush (2), a nozzle tip channel (4) is reserved between the valve needle (6) and the nozzle core (3), a hot flow channel (5) is reserved between the valve needle (6) and the hot nozzle body (1), a flow mixing device is arranged between the contact ends of the hot nozzle body (1) and the nozzle core (3).

2. The needle valve type heat flow assembly according to claim 1, wherein the flow mixing device comprises an upper flow plug (8) and a lower flow plug (9), the upper flow plug (8) is fitted at one end of the hot nozzle body (1) close to the nozzle core (3), two symmetrical through holes (13) are formed in the upper flow plug (8), the lower flow plug (9) is fixed below the upper flow plug (8), the hot runners (11) are formed in positions of the lower flow plug (9) corresponding to the two through holes (13), discharge holes (10) are formed in one ends of the lower flow plug (9) corresponding to the two hot runners (11), the lower flow plug (9) is located on the two hot runners (11) and is rotatably connected with flow mixing wheels (12), and the upper ends of the two flow mixing wheels (12) are fitted at the lower end of the upper flow plug (8).

3. The needle valve type heat flow assembly according to claim 2, wherein a flow guiding slope is formed at a position of the upper flow plug (8) close to the through hole (13).

4. A needle valve type heat flow assembly according to claim 2, wherein the end of the upper flow plug (8) close to the hot nozzle body (1) is integrally formed with a threaded ring (7), the threaded ring (7) is screwed on the hot nozzle body (1), the lower flow plug (9) is fixed on the upper flow plug (8) by a screw, and the valve needle (6) passes through the upper flow plug (8) and the lower flow plug (9).

5. A needle valve heat flow assembly according to claim 2, wherein the outlet opening (10) communicates with the tip channel (4) and the heat flow channel (5) communicates with the through hole (13), the hot runner (11) and the outlet opening (10).

6. A needle valve heat flow assembly according to claim 2, wherein the nozzle core (3) has an end surface corresponding to the position of the lower plug (9), and the lower surface of the lower plug (9) is fitted on the end surface of the nozzle core (3).