CN210758972U

CN210758972U - Hot nozzle for needle valve type hot runner system

Info

Publication number: CN210758972U
Application number: CN201921686408.3U
Authority: CN
Inventors: 张友胜
Original assignee: Shenzhen Youhao Hot Runner Technology Co Ltd
Current assignee: Shenzhen Youhao Hot Runner Technology Co Ltd
Priority date: 2019-10-10
Filing date: 2019-10-10
Publication date: 2020-06-16
Anticipated expiration: 2029-10-10

Abstract

The utility model relates to a hot mouth technical field discloses a hot mouth for needle valve formula hot runner system, include: the core, set up the runner that link up its both ends in the core, the runner is used for making things convenient for the sizing material that outside injection molding machine moulded plastics to flow, the one end releasable connection of core has the mouth that is used for going out to glue, the inside of core is equipped with and is used for opening and close the subassembly of opening and close of mouth to the flow of control sizing material. Through the opening and closing effect of the opening and closing assembly, the opening and closing of the nozzle head are controlled, the glue material injected by the injection molding machine conveniently flows in the flow channel of the core body, the glue can be regulated and controlled, the structure of a hot runner system is simplified due to the fact that the glue is not controlled by the air cylinder, production cost is reduced, and actual production requirements are met.

Description

Hot nozzle for needle valve type hot runner system

Technical Field

The utility model relates to a hot mouth technical field especially relates to a hot mouth for needle valve formula hot runner system.

Background

In the production of plastic products, in order to increase the efficiency of the mold, a needle valve type hot runner is generally used, and compared with a common hot runner system, the needle valve type hot runner has an additional set of valve needle transmission device for controlling the opening and closing movement of a valve needle and realizing the opening and closing of a pouring gate. The needle valve type hot runner system can not only control the problems of welding marks, deformation and the like of products, but also ensure the attractive appearance of product gates and improve the quality of the products, so that the needle valve type hot runner system is widely applied to injection molding of materials with good flowability. However, compared with the common hot runner, the needle valve hot runner system has the defects of higher cost, larger thickness of the fixed die and larger fixed processing amount.

Therefore, how to simplify the hot runner system becomes a technical problem to be solved urgently.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in simplifying hot runner system.

To this end, according to a first aspect, embodiments of the present invention disclose a hot nozzle for a needle valve type hot runner system, comprising: the core, set up the runner that link up its both ends in the core, the runner is used for making things convenient for the sizing material that outside injection molding machine moulded plastics to flow, the one end releasable connection of core has the mouth that is used for going out to glue, the inside of core is equipped with and is used for opening and close the subassembly of opening and close of mouth to the flow of control sizing material.

The utility model discloses further set up to, it includes to open and close the subassembly: the flow guide shuttle is arranged in the core body and is used for guiding the rubber material in the core body; the thimble is arranged at one end of the diversion shuttle close to the nozzle head and is connected with the diversion shuttle in a sliding way; the tip end of the ejector pin is detachably connected with the nozzle head and is used for controlling the opening and closing of the nozzle head; and the elastic part is arranged in the flow guide shuttle, is sleeved with the ejector pin and is used for driving the ejector pin to move up and down in the flow guide shuttle.

The utility model discloses further set up to, the water conservancy diversion shuttle for the one end of mouth head is equipped with the water conservancy diversion head, the water conservancy diversion head with water conservancy diversion shuttle fixed connection.

The utility model discloses further set up as, the water conservancy diversion head for the internal diameter of the one end of water conservancy diversion shuttle is along the sizing material increases gradually in the direction that flows in the core.

The utility model discloses further set up as, the elastic component is the spring.

The utility model discloses following beneficial effect has: through the opening and closing effect of the opening and closing assembly, the opening and closing of the nozzle head are controlled, the glue material injected by the injection molding machine conveniently flows in the flow channel of the core body, the glue can be regulated and controlled, the structure of a hot runner system is simplified due to the fact that the glue is not controlled by the air cylinder, production cost is reduced, and actual production requirements are met.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of a hot nozzle for a needle valve hot runner system according to the present disclosure;

fig. 2 is a schematic view of a hot nozzle for a needle valve type hot runner system according to the present disclosure.

Reference numerals: 1. a core body; 2. a flow channel; 3. a mouth head; 4. an opening and closing assembly; 41. a deflector shuttle; 42. a thimble; 43. an elastic member; 5. and a flow guide head.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "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 simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

The embodiment of the utility model discloses a hot mouth for needle valve formula hot runner system, as shown in figure 1, include: the core 1, set up runner 2 that link up its both ends in the core 1, runner 2 is used for making things convenient for the sizing material that outside injection molding machine moulded plastics to flow, and the one end releasable connection of core 1 has the mouth 3 that is used for going out to glue, and the inside of core 1 is equipped with the subassembly 4 of opening and close that is used for opening and close mouth 3 to the flow of control sizing material.

It should be noted that opening and closing of the nozzle head 3 are controlled through opening and closing of the opening and closing assembly 4, glue injected by the injection molding machine can flow in the runner 2 of the core body 1 conveniently, glue can be discharged in an adjustable mode, and due to the fact that glue is not discharged through control of the air cylinder, the structure of the hot runner 2 system is simplified, production cost is reduced, and actual production requirements are met.

As shown in fig. 1, the opening and closing assembly 4 includes: a guide shuttle 41, a thimble 42 and an elastic element 43, wherein: the flow guiding shuttle 41 is arranged in the core body 1, and the flow guiding shuttle 41 is used for guiding the rubber material in the core body 1; the thimble 42 is arranged at one end of the diversion shuttle 41 close to the nozzle head 3, and the thimble 42 is connected with the diversion shuttle 41 in a sliding way; the tip of the ejector pin 42 is detachably connected with the nozzle head 3, and the ejector pin 42 is used for controlling the opening and closing of the nozzle head 3; the elastic element 43 is disposed in the guiding shuttle 41, the elastic element 43 is sleeved with the thimble 42, and the elastic element 43 is used for driving the thimble 42 to move up and down in the guiding shuttle 41.

As shown in fig. 1, a diversion head 5 is arranged at one end of the diversion shuttle 41 opposite to the nozzle head 3, and the diversion head 5 is fixedly connected with the diversion shuttle 41.

As shown in fig. 1, the inner diameter of the deflector head 5 at one end with respect to the deflector shuttle 41 is gradually increased in the direction in which the sizing material flows in the core 1.

As shown in fig. 1, the elastic member 43 is a spring.

The working principle is as follows: the thimble 42 can move up and down in the guiding shuttle 41, and open or close the runner at the same time, the hot nozzle runner is in the closed state because of the spring force at first, after the injection molding machine extrudes the sizing material, the thimble 42 retreats because of the injection pressure, thus open the runner to carry on the injection molding, after the cavity is full of injection molding, because the pressure in the core 1 is balanced with the outside, make the thimble 42 move forward because of the spring force, thus close the runner. According to the hot nozzle, the ejector pins 42 are moved up and down by utilizing injection molding pressure and the elasticity of the springs, and the frame opening size of the template is greatly reduced due to the fact that no air cylinder is used, so that the actual production requirement is met.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. A hot nozzle for a needle valve hot runner system, comprising: core (1), runner (2) that link up its both ends have been seted up in core (1), runner (2) are used for making things convenient for the sizing material that outside injection molding machine moulded plastics to flow, the one end releasable connection of core (1) has mouth (3) that are used for going out to glue, the inside of core (1) is equipped with and is used for opening and close the subassembly (4) of opening and close of mouth (3) to the flow of control sizing material.

2. The hot nozzle for a needle valve hot runner system according to claim 1, wherein the opening and closing assembly (4) comprises:

the flow guide shuttle (41) is arranged in the core body (1) and is used for guiding the rubber material in the core body (1);

the ejector pin (42) is arranged at one end, close to the nozzle head (3), of the diversion shuttle (41) and is in sliding connection with the diversion shuttle (41); the tip end of the ejector pin (42) is detachably connected with the nozzle head (3) and is used for controlling the opening and closing of the nozzle head (3);

and the elastic piece (43) is arranged in the flow guide shuttle (41), is sleeved with the thimble (42) and is used for driving the thimble (42) to move up and down in the flow guide shuttle (41).

3. The hot nozzle for a needle valve type hot runner system according to claim 2, wherein an end of the flow guiding shuttle (41) opposite to the nozzle head (3) is provided with a flow guiding head (5), and the flow guiding head (5) is fixedly connected with the flow guiding shuttle (41).

4. A hot nozzle for a needle valve hot runner system according to claim 3, characterized in that the inner diameter of the deflector head (5) with respect to one end of the deflector shuttle (41) increases gradually in the direction of flow of the glue inside the core (1).

5. The hot nozzle for a needle valve hot runner system according to claim 2, wherein the resilient member (43) is a spring.