CN210011263U

CN210011263U - Novel hot mouth tip of direction and hot runner system

Info

Publication number: CN210011263U
Application number: CN201920338281.XU
Authority: CN
Inventors: 席连庆
Original assignee: Liudao Qingdao Hot Runner System Co Ltd
Current assignee: Liudao Qingdao Hot Runner System Co Ltd
Priority date: 2019-03-18
Filing date: 2019-03-18
Publication date: 2020-02-04
Anticipated expiration: 2029-03-18

Abstract

The utility model belongs to the technical field of the hot runner, especially, relate to a novel direction hot nozzle tip and hot runner system. Aiming at the defects existing in the prior art, the technical problem to be solved by the utility model is to provide a novel guide hot nozzle tip. Former needle valve hot runner system relies on the runner direction when the needle up-and-down motion in the operation, leads to the direct impact runner to cause the runner damage, and this application adds guide structure in hot nozzle tip makes the needle avoid the direct impact runner in the motion process, avoids the runner damage to avoid moulding a burr, improve and mould a product quality. The sharp periphery wall of hot nozzle is equipped with fitting surface and lower fitting surface from top to bottom in proper order, be equipped with the passageway that supplies the needle to pass in the hot nozzle point, the hot nozzle point is used for preventing that the needle from taking place the guiding mechanism of beat at the in-process that reciprocates in the shaping of passageway inner wall, guiding mechanism and needle contact are used for the direction.

Description

Novel hot mouth tip of direction and hot runner system

Technical Field

The utility model belongs to the technical field of the hot runner, especially, relate to a novel direction hot nozzle tip and hot runner system.

Background

The hot runner ensures that the plastic of the runner and the sprue is kept in a molten state by a heating method. Because the heating rod and the heating ring are arranged near or in the center of the runner, the whole runner from the nozzle outlet of the injection molding machine to the sprue is in a high-temperature state, so that the plastic in the runner is kept molten, the runner does not need to be opened after the machine is stopped, the solidified material is taken out, and the runner is heated to the required temperature when the machine is started again. The hot runner technology has the advantages of saving raw materials, reducing cost, shortening molding period, improving machine efficiency, improving surface quality and mechanical property of products, improving the surface attractiveness of injection molding products and the like. However, with the wide application of the hot runner technology, various defects occur in different degrees in the field of high-quality plastic parts, and the needle valve type hot runner system can generate product burr after long-time operation, so that the quality of the plastic part product is reduced, and the after-sale and maintenance costs of the hot runner system are increased.

The valve needle directly contacts with the runner in the up-and-down motion of operation in-process in the needle valve formula hot runner system, and the runner plays to glue the effect and plays the guide effect again promptly, so lead to valve needle and runner to collide and cause the runner damage after long-time operation to produce the clearance, the sizing material flows out along the clearance and causes the product burr, so cause the reason of product burr be exactly that the valve needle lacks the structure of a direction in the injection molding process, consequently, the direction hot nozzle tip hot runner system of my development will certainly be by wide application.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects existing in the prior art, the technical problem to be solved by the utility model is to provide a novel guide hot nozzle tip. Former needle valve hot runner system relies on the runner direction when the needle up-and-down motion in the operation, leads to the direct impact runner to cause the runner damage, and this application adds guide structure in hot nozzle tip makes the needle avoid the direct impact runner in the motion process, avoids the runner damage to avoid moulding a burr, improve and mould a product quality.

In order to solve the technical problem, the utility model discloses the technical scheme who takes is: the utility model provides a novel direction hot nozzle point, hot nozzle point periphery wall is equipped with fitting surface and fitting surface down from top to bottom in proper order, be equipped with the passageway that supplies the needle to pass in the hot nozzle point, hot nozzle point is used for preventing that the needle from taking place the guiding mechanism of beat at reciprocating the in-process in the shaping of passageway inner wall, guiding mechanism and needle contact are used for the direction.

In the novel guide hot nozzle tip, the guide mechanism comprises a first guide column and a second guide column which are symmetrically formed on the inner wall of the channel; first guide post leads face, first well face, the first face of leading down on including the first that from top to bottom meets in proper order, the second guide post leads face, second under including the second that from top to bottom meets in proper order on leading face, second.

The novel guide hot nozzle tip comprises a channel hole and a valve needle hole, wherein the channel hole is formed by a first guide column and a second guide column at intervals.

In the novel guide hot nozzle tip, the first middle guide surface and the second middle guide surface are staggered one by one to be contacted with the valve needle.

In the novel guide hot nozzle tip, the upper guide surfaces of the first guide column and the second guide column are arc-shaped.

Foretell hot mouth tip of novel direction, hot mouth tip cover is equipped with runner department, be equipped with tip passageway, butt joint runner in the runner department, butt joint runner front end is equipped with the runner, runner department upper end periphery wall is equipped with the external screw thread.

According to the novel guide hot nozzle tip, the lower matching surface is matched and installed with the nozzle tip channel, and the butt joint flow channel is matched and communicated with the channel to allow rubber materials and valve needles to pass through.

A hot-runner system comprising at least one novel pilot hot tip as described in any of the above.

The utility model discloses direction hot nozzle tip and hot runner system's advantage is:

1. the utility model discloses direction hot nozzle point and hot runner system designs a needle guide structure on the motion track of needle in hot nozzle point, and the needle no longer leads through the runner in the motion process but leads through the guide structure of hot nozzle point, therefore the needle only plays the glue sealing effect with the runner contact department, has avoided the needle to collide the runner directly and cause the runner damage; this application is with increasing needle guide structure as the design principle, increases needle guide structure on runner upper portion, avoids direct impact runner when the needle motion, avoids colliding for a long time and causes the damage to the runner to avoid moulding a burr, improve and mould a product quality.

Drawings

FIG. 1 is a schematic view of the structure of the hot nozzle tip of the present invention;

fig. 2 is a top view of the present invention in fig. 1;

FIG. 3 is a perspective view of the hot nozzle tip of the present invention;

FIG. 4 is a schematic structural view of the hot nozzle tip matching gate of the present invention;

fig. 5 is a schematic structural view of the hot runner system of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Embodiment 1, as shown in fig. 1 and 2, a novel guiding hot nozzle tip, an upper matching surface 11 and a lower matching surface 12 are sequentially arranged on the outer peripheral wall of the hot nozzle tip 1 from top to bottom, a channel 13 for a valve needle to pass through is arranged in the hot nozzle tip 1, a guiding mechanism 14 for preventing the valve needle from deflecting during the up-and-down movement of the valve needle is formed on the inner wall of the channel 13 of the hot nozzle tip 1, and the guiding mechanism 14 is in contact with the valve needle for guiding.

Embodiment 2, on the basis of embodiment 1, as shown in fig. 1 and 2, the guide mechanism 14 includes a first guide post 15 and a second guide post 16 formed on the inner wall of the channel 13 and symmetrically arranged; the first guide post 15 includes a first upper guide surface 151, a first middle guide surface 152, and a first lower guide surface 153 that are connected in sequence from top to bottom, and the second guide post 16 includes a second upper guide surface 161, a second middle guide surface 162, and a second lower guide surface 163 that are connected in sequence from top to bottom.

Embodiment 3, on the basis of embodiment 2, as shown in fig. 1 and 2, the channel 13 includes a flow passage hole 17 and a valve needle hole 18, which are formed by spacing a first guide column 15 and a second guide column 16.

Embodiment 4 is based on embodiment 3, and as shown in fig. 1 and 2, the first middle guide surface 152 and the second middle guide surface 162 are staggered one after another to contact with the valve needle.

In example 5 and example 4, as shown in fig. 1 and 2, the upper guide surfaces of the first guide post 15 and the second guide post 16 are both circular arc-shaped.

Embodiment 6 is based on embodiment 5, as shown in fig. 1 and 2, a gate driver 2 is sleeved on the hot nozzle tip 1, a nozzle tip channel 21 and a butt joint runner 22 are arranged in the gate driver 2, a gate 23 is arranged at the front end of the butt joint runner 22, and an external thread 24 is arranged on the outer peripheral wall of the upper end of the gate driver 2.

Example 7, on the basis of example 6, as shown in fig. 1 and 2, the lower mating surface 12 is installed in cooperation with the nozzle tip channel 21, and the docking channel 22 is in cooperation communication with the channel 13 for the passage of the glue and the valve needle.

Embodiment 8, as shown in fig. 1 and 2, a hot-runner system comprising at least one novel pilot hot tip as described in any of embodiments 1-7.

As shown in fig. 5, the novel hot nozzle tip hot runner system is installed and used: the positioning ring 8, the injection nozzle head 9, the injection nozzle body 3, the flow distribution plate 4, the hot nozzle flange 5, the valve needle 6 and the hot nozzle body 7 are processed according to a conventional processing mode, and the processing technology and the sequence are unchanged. The hot nozzle tip 1 is added with a valve needle guide structure, numerical control machining needs to be respectively carried out from two ends of a channel 13, an upper matching surface 11 and a lower matching surface 12 are turned in the first step, a slow wire cuts a flow channel hole 17, a valve needle hole 18 and a reference platform in the second step, and the valve needle guide structures 14 above and below the channel are washed in a third step in a numerical control mode. The structure of the pouring gate driver 2 is correspondingly adjusted, the hot nozzle tip 1 and the pouring gate driver 2 are separated and respectively processed because the guide structure of the hot nozzle tip 1 needs to be processed on two sides of the hot nozzle, the pouring gate driver 2 is connected with the hot nozzle body 7 through the pouring gate driver external thread 24 and is in matched connection with the lower matching surface 12 of the hot nozzle tip through the nozzle tip channel 21, the channel 13 of the hot nozzle tip is respectively matched and communicated with the butt joint channel 22 and the hot nozzle channel 71 to allow glue materials to pass through, the butt joint channel 22 and the hot nozzle tip 1 need to strictly control matching tolerance and are in contact with the cavity of the mold through the cavity matching surface 25, and the valve needle 6 and the pouring gate 23 complete pouring and glue sealing operations.

As shown in fig. 5, instructions for use: the injection molding glue is connected with a hot runner system through a positioning ring 8, the glue is injected into an injection nozzle body 3 through an SR arc 91 on an injection nozzle head 9, then the injection molding glue is injected into a flow distribution plate 4 through an injection nozzle body flow passage 31, the glue is poured into a hot nozzle flow passage 71 of a hot nozzle body 7 from the flow distribution plate 4 through a flow distribution plate flow passage 41, the valve needle 6 moves up and down in the pouring operation through a valve needle guide structure 14 on a hot nozzle tip 1, two points of a first middle guide surface 152 and a second middle guide surface 162 are in contact with the valve needle 6 to play a guiding role, the guiding is ensured to be more reliable through one-over-one-under arrangement, and then the glue is poured into a mold cavity through a pouring gate 23 to complete the injection molding through the hot nozzle head 1 and a pouring gate driver.

The present invention has been described above by way of example with reference to the accompanying drawings, and it is to be understood that the specific implementations of the present invention are not limited to the above-described embodiments. The present invention can be modified or modified by those skilled in the art without departing from the technical idea of the present invention, and such modifications or modifications naturally fall within the scope of the present invention.

Claims

1. The utility model provides a novel hot mouth tip of direction which characterized in that: hot nozzle point (1) periphery wall from top to bottom is equipped with up-fitting surface (11) and under-fitting surface (12) in proper order, be equipped with passageway (13) that supply the needle to pass in hot nozzle point (1), hot nozzle point (1) has guiding mechanism (14) that are used for preventing the needle from taking place the beat at the in-process that reciprocates in passageway (13) inner wall shaping, guiding mechanism (14) are used for the direction with the needle contact.

2. The novel pilot hot nozzle tip as set forth in claim 1, wherein: the guide mechanism (14) comprises a first guide column (15) and a second guide column (16) which are formed on the inner wall of the channel (13) and symmetrically arranged; the first guide post (15) comprises a first upper guide surface (151), a first middle guide surface (152) and a first lower guide surface (153) which are sequentially connected from top to bottom, and the second guide post (16) comprises a second upper guide surface (161), a second middle guide surface (162) and a second lower guide surface (163) which are sequentially connected from top to bottom.

3. The novel pilot hot nozzle tip of claim 2, characterized in that: the channel (13) comprises a flow passage hole (17) and a valve needle hole (18) which are formed by a first guide column (15) and a second guide column (16) at intervals.

4. A novel pilot hot nozzle tip as in claim 3, wherein: the first middle guide surface (152) and the second middle guide surface (162) are staggered one by one to be in contact with the valve needle.

5. The novel pilot hot nozzle tip of claim 4, characterized in that: the upper guide surfaces of the first guide post (15) and the second guide post (16) are both arc-shaped.

6. The novel pilot hot nozzle tip of claim 5, characterized in that: hot mouth tip (1) cover is equipped with runner department (2), be equipped with tip passageway (21), butt joint runner (22) in runner department (2), butt joint runner (22) front end is equipped with runner (23), runner department (2) upper end periphery wall is equipped with external screw thread (24).

7. The novel pilot hot nozzle tip of claim 6, characterized in that: the lower matching surface (12) is matched with the nozzle tip channel (21) for installation, and the butt joint flow channel (22) is matched and communicated with the channel (13) for rubber materials and valve needles to pass through.

8. A hot-runner system, comprising: the hot runner system includes at least one novel pilot hot tip as claimed in any one of claims 1 to 7.