CN214726131U

CN214726131U - Sprue device

Info

Publication number: CN214726131U
Application number: CN202120588313.9U
Authority: CN
Inventors: 李刚; 王建营; 丁虹支
Original assignee: Qingdao Colette Photoelectric Technology Co ltd
Current assignee: Qingdao Colette Photoelectric Technology Co ltd
Priority date: 2021-03-23
Filing date: 2021-03-23
Publication date: 2021-11-16
Anticipated expiration: 2031-03-23

Abstract

The utility model discloses a runner device relates to plastic mould technical field. The sprue device comprises a fixed die, wherein a runner is arranged on the fixed die, and a runner sprue is arranged in a necking shape; the runner is located runner sprue section and is equipped with the heat preservation chamber that encircles the runner setting, the heat preservation intracavity is equipped with the spiral channel that encircles the runner setting, install the heating wire in the spiral channel, the heating wire passes through the wire and is connected with external power supply, the heat preservation intracavity is filled there is high temperature resistant insulation material. The utility model discloses, through setting up the heating wire to the runner that is located runner gate section, heat the fused plastic material that flows through here, cooperate with the heat preservation effect of high temperature resistant insulation material, can make the fused plastic material that flows through here keep higher temperature, avoid here taking place to cool off and form the runner congeals; during demolding, no sprue aggregate is generated on the surface of the product and the runner, so that the additional procedure of correcting the product is reduced, and the production efficiency is improved.

Description

Sprue device

Technical Field

The utility model relates to a plastic mould technical field, concretely relates to runner device.

Background

The plastic mould is a tool for producing plastic products, and particularly relates to a formed product which is obtained by injecting heated and melted plastic into a mould cavity from an injection molding machine at high pressure and cooling and solidifying the plastic.

At present, in the process of injection molding of a plastic mold, a sprue is formed at the joint of the tail end of a runner in the mold and a product, and the sprue is formed into sprue aggregate which belongs to waste materials; if the runner that remains on the product congeals the material volume great, can influence the quality of product, need amputate it in subsequent processing, waste time and energy, reduce work efficiency.

How to solve the technical problems is a technical problem to be solved in the technical field of the existing plastic mold.

SUMMERY OF THE UTILITY MODEL

To the technical problem, the embodiment of the utility model provides a runner device to solve the problem that proposes among the above-mentioned background art.

The utility model provides a following technical scheme: a sprue device comprises a fixed die, wherein a runner is arranged on the fixed die, and a runner of the runner is in a necking shape; the runner is located runner sprue section and is equipped with the heat preservation chamber that encircles the runner setting, the heat preservation intracavity is equipped with the spiral channel that encircles the runner setting, install the heating wire in the spiral channel, the heating wire passes through the wire and is connected with external power supply, the heat preservation intracavity is filled there is high temperature resistant insulation material.

Preferably, the runner is provided with a material cutting groove at the position of the runner gate, and the material cutting groove is internally provided with a material cutting device.

Preferably, the material cutting device is including establishing the cut-off knife in the material cutting groove, be equipped with the limiting plate on the cut-off knife, the limiting plate is fixed with reset spring towards cutter handle one side, the reset spring other end is fixed on the material cutting groove inner wall towards cutter handle one side.

Preferably, the number of the material cutting grooves is 2, the material cutting grooves are symmetrically arranged on a flow channel at a flow channel gate, and the material cutting devices are arranged on the 2 material cutting grooves.

Preferably, the cross section of the runner at the runner gate section is smaller than the cross section of the other parts of the runner.

Preferably, the high-temperature-resistant heat-insulating material is a polyurethane plate.

The embodiment of the utility model provides a pair of pouring gate device has following beneficial effect: the utility model discloses, through setting up the heating wire to the runner that is located runner gate section, heat the fused plastic material that flows through here, cooperate with the heat preservation effect of high temperature resistant insulation material, can make the fused plastic material that flows through here keep higher temperature, avoid here taking place to cool off and form the runner congeals; during demolding, no sprue aggregate is generated on the surface of the product and the runner, so that the additional procedure of correcting the product is reduced, and the production efficiency is improved.

Drawings

FIG. 1 is a schematic sectional view of a pouring gate device according to the present invention;

fig. 2 is a partially enlarged view of a in fig. 1 according to the present invention.

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. Based on the embodiments in the present invention, the technical personnel in the field can obtain all other embodiments without creative work, which all belong to the protection scope of the present invention.

In one embodiment, refer to fig. 1-2.

To the problem that above-mentioned background art mentioned, the embodiment of the utility model provides a runner device to solve above-mentioned technical problem, its technical scheme is as follows:

a gate device comprises a fixed die 100, wherein a runner 110 is arranged on the fixed die 100, and a runner gate 111 is in a necking shape; the runner 110 is provided with a heat preservation cavity 210 surrounding the runner 110 at a section of the runner gate 111, a spiral channel 230 surrounding the runner 110 is arranged in the heat preservation cavity 210, a heating wire 240 is installed in the spiral channel 230, the heating wire 240 is connected with an external power supply through a wire 250, and a high-temperature-resistant heat preservation material 220 is filled in the heat preservation cavity 210.

The runner gate 111 is set to be in a reduced shape, and the reduced shape makes the aperture ratio of the gate condensate at the connecting position of the product smaller, so that the gate condensate is easy to break, thereby reducing the gate condensate remained on the surface of the product during demolding and reducing the subsequent cutting process.

The utility model relates to a runner device theory of use as follows: when the plastic runner is used, the runner 110 is close to the runner gate 111, and the heating wire 240 is electrified to generate heat to heat the runner 110 at the section of the runner gate 111, so that the molten plastic material flowing through the runner gate is kept at a high temperature, and the runner is prevented from being cooled to form gate condensate; during demolding, no sprue aggregate is generated between the surface of the product and the runner 110, so that the additional process of correcting the product is reduced, and the production efficiency is improved.

In one embodiment, refer to fig. 1-2.

A sprue device is characterized in that a material cutting groove 120 is arranged at the position, located at a sprue gate 111, of a runner 110, and a material cutting device is arranged in the material cutting groove 120.

Specifically, the cutting device is including establishing the cut-off knife 310 in the cutting groove 120, be equipped with limiting plate 330 on the cut-off knife 310, limiting plate 330 is fixed with reset spring 320 towards cutting knife handle one side, the reset spring 320 other end is fixed on the cutting groove 120 inner wall towards cutting knife handle one side.

In a natural state, the cutter 310 is hidden in the material cutting groove 120, and if gate condensation is generated on the surface of a product and the gate condensation needs to be cut off, the cutter handle of the cutter 310 is manually pressed to extend the cutter 310 out of the material cutting groove 120 to cut off the gate condensation; then the hand is disengaged from the cutter handle, and the cutter 310 is returned to the material cutting groove 120 by the return spring 320.

Preferably, the number of the material cutting grooves 120 is 2, and the material cutting grooves are symmetrically arranged on the flow channel 110 at the flow channel gate 111, and the material cutting devices are arranged on all 2 material cutting grooves 120; through setting up 2 cutting devices, it is more convenient to cut out the effect.

Preferably, the cross section of the runner 110 at the runner gate 111 section is smaller than the cross section of the other parts of the runner 110; the cross section of the runner 110 is gradually reduced, and the cross section of the runner gate 111 is the smallest, so that the gate aggregate is conveniently broken off.

Preferably, the high temperature resistant heat insulation material 220 is a polyurethane plate.

The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

It should be understood that equivalent alterations and modifications can be made by those skilled in the art according to the technical solution of the present invention and the inventive concept, and all such alterations and modifications shall fall within the scope of the appended claims.

Claims

1. A gate device comprises a fixed die (100), wherein a runner (110) is arranged on the fixed die (100), and is characterized in that a runner gate (111) is arranged in a necking shape; the runner (110) is located runner (111) section and is equipped with heat preservation chamber (210) that encircle runner (110) and set up, be equipped with in heat preservation chamber (210) and encircle spiral channel (230) that runner (110) set up, install heating wire (240) in spiral channel (230), heating wire (240) are connected with external power source through wire (250), heat preservation chamber (210) intussuseption is filled with high temperature resistant insulation material (220).

2. The gate device as claimed in claim 1, wherein the runner (110) is provided with a material cutting groove (120) at the position of the runner gate (111), and the material cutting groove (120) is provided with a material cutting device.

3. The gate device as claimed in claim 2, wherein the cutting device comprises a cutting knife (310) disposed in the cutting trough (120), the cutting knife (310) is provided with a limiting plate (330), a return spring (320) is fixed on one side of the limiting plate (330) facing the cutting knife handle, and the other end of the return spring (320) is fixed on the inner wall of the cutting trough (120) facing the cutting knife handle.

4. The gate device as claimed in claim 2, wherein the number of the cutting grooves (120) is 2, and the cutting grooves are symmetrically arranged on the runner (110) at the runner gate (111), and the cutting devices are arranged on all 2 cutting grooves (120).

5. A gate arrangement according to claim 1, characterized in that the cross-section of the runner (110) in the runner gate (111) section is smaller than the cross-section in other parts of the runner (110).

6. The gate arrangement of claim 1, wherein the refractory material (220) is a polyurethane sheet.