CN217258055U

CN217258055U - Nozzle structure of hot runner

Info

Publication number: CN217258055U
Application number: CN202220097209.4U
Authority: CN
Inventors: 梁朝明; 郭锦平
Original assignee: Dongguan Liangye Plastic Co ltd
Current assignee: Dongguan Liangye Plastic Co ltd
Priority date: 2022-01-14
Filing date: 2022-01-14
Publication date: 2022-08-23
Anticipated expiration: 2032-01-14

Abstract

The utility model discloses a nozzle structure of hot runner, which relates to the technical field of injection mold, comprising a hot runner body, wherein the bottom end of the hot runner body is connected with a hot runner nozzle head, the inner side of the hot runner nozzle head is connected with a hot runner inner needle, the bottom end of the hot runner body and the outer surfaces of the hot runner nozzle head and the hot runner inner needle are connected with a hot runner cooling jacket, the structure injects liquid plastic into the hot runner inner needle through an injection port and a cavity, the hot runner inner needle is connected in the hot runner cooling jacket, the bottom end of the hot runner cooling jacket is correspondingly provided with an outflow port with the needle head, the bottom end of the outflow port is level with the bottom end of the needle head, from a main inlet to the needle head, the flowing part of the liquid plastic has no dead angle, the liquid plastic flows smoothly, the blockage is not easy to cause, and the glue outlet point flowing out through the outflow port does not need to be reprocessed, thereby improving the efficiency and the quality of injection molding production, the steps of reprocessing are reduced.

Description

Nozzle structure of hot runner

Technical Field

The utility model relates to an injection mold technical field specifically is a hot runner penetrate mouth structure.

Background

The hot runner can be with injecting into the mould through the liquid plastic that the injection molding machine heating melted to help the production of mould, and hot runner among the prior art often only through the cavity with the direct injection mold of liquid plastic, the dead angle in the hot runner is more, hinders the circulation of liquid plastic, causes the jam after the cooling easily, and advances to glue the point and need to process once more.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a hot runner penetrate mouth structure has solved the more problem that influences the flow in hot runner structure dead angle.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the nozzle structure of the hot runner comprises a hot runner body, wherein the bottom end of the hot runner body is connected with a hot runner nozzle head, the inner side of the hot runner nozzle head is connected with a hot runner inner needle, and the bottom end of the hot runner body and the outer surfaces of the hot runner nozzle head and the hot runner inner needle are connected with a hot runner cooling water jacket.

As a further technical scheme of the utility model, the top of hot runner body is connected with the joint, the cavity has been seted up to the inboard of hot runner body and joint, the filling opening has been seted up to the top surface that connects.

As a further technical scheme of the utility model, the surface of hot runner mouth head is seted up threadedly, the bottom of hot runner body seted up with hot runner mouth head surface assorted internal thread, the bottom of needle is connected with the syringe needle in the hot runner, the top of hot runner mouth head corresponds with the hot runner in the needle and has seted up the mounting groove, the needle passes through the hot runner mouth head in the hot runner and connects in the bottom of hot runner body.

As a further technical scheme of the utility model, hot runner cooling jacket's upper surface has seted up the mounting groove in the hot runner body correspondence, the inland side and the hot runner in the mounting groove needle and the hot runner mouth correspond and has seted up the block groove, hot runner cooling jacket's bottom corresponds with the syringe needle and has seted up the egress opening.

As a further technical scheme of the utility model, the filling opening is linked together with the joint, the top and the cavity of hot runner inner needle are linked together, the egress opening is linked together through cavity and syringe needle and filling opening, the external diameter size of syringe needle and the internal diameter size phase-match of egress opening.

As a further technical scheme of the utility model, the internal diameter size of mounting groove and the external diameter size phase-match of hot runner body, the internal diameter size of hot runner mouth and the external diameter size phase-match of hot runner interior needle, the bottom of syringe needle and hot runner cooling jacket's bottom end parallel and level.

Advantageous effects

The utility model provides a hot runner's mouth structure of penetrating. Compared with the prior art, the method has the following beneficial effects:

1. a nozzle structure of a hot runner injects liquid plastic into an inner needle of the hot runner through an injection port and a cavity, the inner needle of the hot runner is connected with a cooling water jacket of the hot runner, an outflow port is correspondingly formed in the bottom end of the cooling water jacket of the hot runner and a needle head, the bottom end of the outflow port is flush with the bottom end of the needle head, and from a main inlet to the needle head, the flowing part of the liquid plastic does not have too many dead corners, so that the liquid plastic flows smoothly and is not easy to block.

Drawings

FIG. 1 is a schematic structural view of a nozzle structure of a hot runner;

FIG. 2 is a top view of a nozzle structure of a hot runner;

FIG. 3 is a cross-sectional view A-A of FIG. 2 of a nozzle configuration of a hot runner;

fig. 4 is an exploded view of a nozzle structure of a hot runner.

In the figure: 1. a hot runner body; 11. a joint; 12. an injection port; 13. a cavity; 2. a hot runner nozzle tip; 3. a hot runner inner needle; 31. a needle head; 4. a hot runner cooling jacket; 41. mounting grooves; 42. and (4) an outflow opening.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a nozzle structure of a hot runner: the utility model provides a nozzle structure of hot runner, includes hot runner body 1, and the bottom of hot runner body 1 is connected with hot runner mouth 2, and the inboard of hot runner mouth 2 is connected with hot runner interior needle 3, and the bottom of hot runner body 1 just is located the outer surface of hot runner mouth 2 and hot runner interior needle 3 and is connected with hot runner cooling jacket 4.

The top end of the hot runner body 1 is connected with a joint 11, the inner sides of the hot runner body 1 and the joint 11 are provided with a cavity 13, the top surface of the joint 11 is provided with an injection port 12, the outer surface of the hot runner nozzle 2 is provided with threads, the bottom end of the hot runner body 1 is provided with inner threads matched with the outer surface of the hot runner nozzle 2, the bottom end of the hot runner inner needle 3 is connected with a needle head 31, the top end of the hot runner nozzle 2 and the hot runner inner needle 3 are correspondingly provided with installation grooves, the hot runner inner needle 3 is connected with the bottom end of the hot runner body 1 through the hot runner nozzle 2, the upper surface of the hot runner cooling water jacket 4 is provided with an installation groove 41 corresponding to the hot runner body 1, the inner side of the installation groove 41 and the hot runner inner needle 3 and the hot runner nozzle 2 are correspondingly provided with clamping grooves, the bottom end of the hot runner cooling water jacket 4 and the needle head 31 are provided with an outflow port 42, the injection port 12 at the top end of the joint 11 is connected with the hot runner inner needle 3 and the needle head 31 through the cavity 13 inside the hot runner body 1, thereby being convenient for glue discharging and injecting.

The injection opening 12 is communicated with the joint 11, the top end of the hot runner inner needle 3 is communicated with the cavity 13, the outflow opening 42 is communicated with the injection opening 12 through the cavity 13 and the needle head 31, the outer diameter of the needle head 31 is matched with the inner diameter of the outflow opening 42, the inner diameter of the mounting groove 41 is matched with the outer diameter of the hot runner body 1, the inner diameter of the hot runner nozzle head 2 is matched with the outer diameter of the hot runner inner needle 3, the bottom end of the needle head 31 is flush with the bottom end of the hot runner cooling water jacket 4, glue flowing in from the needle head 31 through the cavity 13 and the injection opening 12 flows out through the outflow opening 42, and the bottom end of the needle head is flush with the hot runner cooling water jacket 4, so that reprocessing of glue inlet points is avoided.

The utility model discloses a theory of operation: when using, connect the bottom of hot runner cooling water jacket 4 in injection mold's injection end, be connected to injection opening 12 department with the output of injection molding machine, liquid plastic flows to the inboard of cavity 13 through injection opening 12, in rethread cavity 13 and hot runner mouth 2 flow into post hot runner inner needle 3, because the outside is provided with cooling device, it is not so good that a glue flows, absorb the heat energy of injection molding machine sizing material through syringe needle 31 and give gluey heating, it jets out the egress opening 42 and flows into the mould together to be equivalent to glue outlet cold and hot, can let fashioned product finalize the design fast like this.

Claims

1. The utility model provides a mouth shooting structure of hot runner, includes hot runner body (1), its characterized in that, the bottom of hot runner body (1) is connected with hot runner mouth (2), the inboard of hot runner mouth (2) is connected with hot runner interior needle (3), the bottom of hot runner body (1) and the surface that is located hot runner mouth (2) and hot runner interior needle (3) are connected with hot runner cooling jacket (4).

2. The nozzle structure of the hot runner according to claim 1, wherein a joint (11) is connected to a top end of the hot runner body (1), a cavity (13) is formed inside the hot runner body (1) and the joint (11), and an injection port (12) is formed on a top surface of the joint (11).

3. The nozzle structure of the hot runner according to claim 2, wherein the outer surface of the hot runner nozzle head (2) is threaded, the bottom end of the hot runner body (1) is provided with an internal thread matched with the outer surface of the hot runner nozzle head (2), the bottom end of the hot runner inner needle (3) is connected with a needle head (31), the top end of the hot runner nozzle head (2) and the hot runner inner needle (3) are correspondingly provided with a mounting groove, and the hot runner inner needle (3) is connected to the bottom end of the hot runner body (1) through the hot runner nozzle head (2).

4. The nozzle structure of the hot runner according to claim 3, wherein the hot runner cooling water jacket (4) has an installation groove (41) on the upper surface thereof corresponding to the hot runner body (1), an engagement groove is formed on the inner side of the installation groove (41) corresponding to the hot runner inner needle (3) and the hot runner nozzle tip (2), and an outlet (42) is formed at the bottom end of the hot runner cooling water jacket (4) corresponding to the needle tip (31).

5. The nozzle structure of a hot runner according to claim 4, wherein the inlet (12) is connected to the joint (11), the top end of the needle (3) in the hot runner is connected to the cavity (13), the outlet (42) is connected to the inlet (12) through the cavity (13) and the needle (31), and the outer diameter of the needle (31) is matched with the inner diameter of the outlet (42).

6. The nozzle structure of the hot runner according to claim 4, wherein the inner diameter of the installation groove (41) is matched with the outer diameter of the hot runner body (1), the inner diameter of the hot runner nozzle head (2) is matched with the outer diameter of the hot runner inner needle (3), and the bottom end of the needle head (31) is flush with the bottom end of the hot runner cooling water jacket (4).