CN218256501U

CN218256501U - Mould of quick replacement runner

Info

Publication number: CN218256501U
Application number: CN202222236568.6U
Authority: CN
Inventors: 廖楚平
Original assignee: Suzhou Lylap Mould Technology Co ltd
Current assignee: Suzhou Lylap Mould Technology Co ltd
Priority date: 2022-08-23
Filing date: 2022-08-23
Publication date: 2023-01-10
Anticipated expiration: 2032-08-23

Abstract

The utility model relates to an injection mold technical field especially relates to a mould of quick replacement runner. The injection molding device comprises an upper template and a lower template, wherein an upper mold core and an injection molding hole are arranged in the upper template; the lower die plate is internally provided with a lower die core matched with the upper die core, a sprue groove, a main runner communicated with one end of the sprue groove, a sprue bush embedded in the sprue groove and a sprue arranged on the sprue bush; the upper die core and the lower die core are matched to form a die cavity for forming a workpiece, and the sprue is communicated with the die cavity; the sprue bush is embedded in the sprue groove. When the sprue needs to be maintained, the whole mold does not need to be disassembled, and only the sprue bush needs to be taken out independently, so that the sprue is maintained or replaced.

Description

Mould of quick replacement runner

Technical Field

The utility model relates to an injection mold technical field especially relates to a mould of quick replacement runner.

Background

The plastic mold is a short name for a combined mold used for compression molding, extrusion molding, injection, blow molding and low-foaming molding. The upper and lower templates of the mould and the auxiliary forming system are coordinated to change, so that a series of plastic parts with different shapes and sizes can be processed.

In the traditional plastic mold, the appearance, the size and the like of a product are directly influenced due to the factors such as the position, the size and the like of a pouring gate in a mold test. However, the entire mold needs to be disassembled during repair, which results in time and labor consuming repair process.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the purpose is: the utility model provides a mould of quick replacement runner to repair when solving among the prior art and need unpack whole mould apart when restoreing the runner, lead to the problem of the consuming time and the power of repair process.

The technical scheme of the utility model is that: a mold for quickly replacing a sprue comprises an upper mold plate and a lower mold plate, wherein an upper mold core and an injection molding hole are arranged in the upper mold plate; the lower die plate is internally provided with a lower die core matched with the upper die core, a sprue groove, a main runner communicated with one end of the sprue groove, a sprue bush embedded in the sprue groove and a sprue arranged on the sprue bush;

the upper die core and the lower die core are matched to form a die cavity for forming a workpiece, and the sprue is communicated with the die cavity; the sprue bush is embedded in the sprue groove.

Preferably, bolt holes are formed in two ends of the sprue groove, through holes are formed in corresponding positions of two ends of the sprue sleeve, and the sprue sleeve is fixed in the sprue groove through bolts penetrating through the through holes.

Preferably, the runner includes first portion and second portion, first portion and sprue smooth communication, the second portion is the loudspeaker form and is provided with the step with the die cavity intercommunication department.

Preferably, the main runner is U-shaped, one end of the main runner is communicated with the pouring gate, the other end of the main runner is provided with a groove, and the center of the groove is overlapped with the axis of the injection molding hole.

Compared with the prior art, the utility model has the advantages that:

different from the traditional mold, the utility model discloses an add detachable runner cover in the runner groove, make traditional primary formula runner become embedded runner. Therefore, when the sprue needs to be maintained, the sprue can be maintained or replaced only by taking out the sprue bush alone without disassembling the whole mold.

Drawings

The invention will be further described with reference to the following drawings and examples:

fig. 1 is a structural diagram of a mold with a gate replaced quickly according to the present invention;

FIG. 2 is a structural view of the lower template of the present invention;

FIG. 3 is a structural diagram of the gate slot of the present invention;

fig. 4 is a structure diagram of the upper template of the present invention;

FIG. 5 is a view of the structure of the sprue bush of the present invention;

wherein: 1. the mold comprises an upper mold plate, 2, an upper mold core, 3, an injection molding hole, 4, a lower mold plate, 5, a lower mold core, 6, a sprue bush, 7, a sprue groove, 71, a bolt hole, 8, a sprue, 81, a first part, 82, a second part, 83, a through hole, 9, a main runner, 91 and a groove.

Detailed Description

The following detailed description is made in conjunction with specific embodiments of the present invention:

as shown in FIG. 1, the quick-change gate mold comprises an upper mold plate 1 and a lower mold plate 4. An upper die core 2 and an injection molding hole 3 are arranged in the upper template 1; a lower die core 5 matched with the upper die core 2, a sprue groove 7, a main runner 9 communicated with one end of the sprue groove 7, a sprue bush 6 embedded in the sprue groove 7 and a sprue 8 arranged on the sprue bush 6 are arranged in the lower die plate 4;

as shown in fig. 3 and 4, through grooves are formed in the upper mold plate 1 and the lower mold plate 4, and are used for fixing the upper mold core 2 and the lower mold core 5, respectively.

As shown in fig. 5, bolt holes 71 are formed at both ends of the gate groove 7, through holes 83 are formed at corresponding positions at both ends of the gate sleeve 6, and both ends of the gate sleeve 6 are connected to the gate groove 7 by bolts penetrating through the through holes 83. With this arrangement, the sprue bush 6 can be separated from the sprue groove 7 if necessary.

The sprue bush 6 is provided with a sprue 8, and the sprue 8 includes a first portion 81 and a second portion 82. The first portion 81 is in smooth communication with the main flow channel 9, and the second portion 82 is flared and in communication with the cavity, and a step is provided at the communication position with the cavity.

As shown in fig. 1, the main flow passage 9 is provided in a U-shape, and one end of the main flow passage 9 communicates with the first portion 81 of the gate 8. The other end is provided with a groove 91, the groove 91 is circular, and the center of the groove 91 is superposed with the axis of the injection molding hole 3.

When the sprue 8 needs to be maintained, the sprue bush 6 can be separated from the lower template 4 only by separating the upper template 1 from the lower template 4 and taking down the bolts at the two ends of the sprue bush 6, so that the sprue bush 6 is maintained and replaced.

The above embodiments are provided only for illustrating the technical concepts and features of the present invention, and the purpose of the embodiments is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, and the protection scope of the present invention cannot be limited thereby. It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it is therefore intended that the present invention be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. The mold capable of rapidly replacing the sprue is characterized by comprising an upper mold plate and a lower mold plate, wherein an upper mold core and an injection molding hole are arranged in the upper mold plate; the lower die plate is internally provided with a lower die core matched with the upper die core, a sprue groove, a main runner communicated with one end of the sprue groove, a sprue bush embedded in the sprue groove and a sprue arranged on the sprue bush;

2. The mold for rapidly replacing the sprue according to claim 1, wherein bolt holes are formed at two ends of the sprue groove, through holes are formed at corresponding positions of two ends of the sprue bush, and the sprue bush is fixed in the sprue groove through bolts penetrating through the through holes.

3. The gate quick change mold of claim 1, wherein the gate comprises a first portion in smooth communication with the main runner and a second portion that is flared and stepped where it communicates with the cavity.

4. The gate quick-changing mold according to claim 1, wherein the main flow channel is provided with a U shape, one end of the main flow channel is communicated with the gate, the other end of the main flow channel is provided with a groove, and the center of the groove is coincident with the axis of the injection molding hole.