CN211891740U

CN211891740U - Changeable core mould that changes in die cavity

Info

Publication number: CN211891740U
Application number: CN201922217496.9U
Authority: CN
Inventors: 李明; 何健; 魏霓; 程玲玲
Original assignee: HASCO Vision Technology Co Ltd
Current assignee: HASCO Vision Technology Co Ltd
Priority date: 2019-12-12
Filing date: 2019-12-12
Publication date: 2020-11-10
Anticipated expiration: 2029-12-12

Abstract

The utility model relates to a changeable core mould that changes in die cavity belongs to the mould field. A rotary core mould with a variable cavity comprises a mould rotary core plate and a mould bottom plate; the rotary core plate of the mold can rotate along the center; the mould rotary core plate is provided with at least one cavity, a moving core which penetrates through the mould rotary core plate along the axial direction of the mould rotary core plate is arranged in the cavity, and the moving core can move back and forth along the axial direction of the mould rotary core plate; the mould bottom plate is provided with at least two stations which are arranged on a circumference which takes the center of the mould rotary core plate as the circle center; the surface of the die bottom plate corresponding to at least one station is provided with an inwards concave accommodating cavity, and the surface of the die bottom plate corresponding to at least one station is a plane. The utility model discloses a moving core changes the shape of die cavity and replaces original mechanism of loosing core, conveniently realizes that quadratic form product is gluing the conversion of changeing the core and throw off between moulding plastics the in-process.

Description

Changeable core mould that changes in die cavity

Technical Field

The utility model relates to a mould field, in particular to changeable commentaries on classics core mould in die cavity.

Background

For some special injection molding products, for example, a core plate needs to be adhered and rotated at a primary molding station, a product adhered to the other side needs to be separated from the rotating core plate at a secondary molding station, or for example, a primary molding product needs to be separated, and a secondary molding product needs to be adhered and rotated with the core plate, the realization of the requirement can be realized only by adding a core pulling mechanism and other mechanical structures.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to the above-mentioned problem, provide a changeable commentaries on classics core mould in die cavity, can conveniently realize the quadratic form product at the in-process of moulding plastics, gluing commentaries on classics core plate and throw off the conversion between.

The purpose of the utility model is realized like this:

a rotary core mould with a variable cavity comprises a mould rotary core plate and a mould bottom plate;

the rotary core plate of the mold can rotate along the center; the mould rotary core plate is provided with at least one cavity, a moving core which penetrates through the mould rotary core plate along the axial direction of the mould rotary core plate is arranged in the cavity, and the moving core can move back and forth along the axial direction of the mould rotary core plate;

the mould bottom plate is provided with at least two stations which are arranged on a circumference which takes the center of the mould rotary core plate as the circle center; the surface of the die bottom plate corresponding to at least one station is provided with an inwards concave accommodating cavity, and the surface of the die bottom plate corresponding to at least one station is a plane;

when the cavity of the mold rotary core plate is correspondingly matched with the accommodating cavity, one end surface of the moving core abuts against the bottom surface of the accommodating cavity, and the other end surface of the moving core is accommodated in the mold rotary core plate and is flush with the bottom surface of the cavity;

when a cavity of the mold rotary core plate is correspondingly matched with the plane, one end face of the moving core abuts against the plane, and the other end face of the moving core extends into the cavity.

Preferably, one end of the moving mold core, which can extend into the mold cavity, is provided with a limit stop ring;

and one side of the rotating core plate of the mold, which is close to the bottom surface of the cavity, is provided with a limiting blocking shoulder matched with the limiting blocking ring.

Preferably, a driving spring is sleeved on one side, close to the mold bottom plate, of the moving mold core, and a spring telescopic cavity is formed in one side, close to the mold bottom plate, of the mold rotating core plate and corresponds to the driving spring.

Preferably, when the cavity of the mold rotary core plate is correspondingly matched with the accommodating cavity, the spring telescopic cavity is communicated with the accommodating cavity to form a closed cavity.

Preferably, one end of the moving core sleeve, which is sleeved with the driving spring, is provided with a spring stop shoulder, one end of the driving spring abuts against the spring stop shoulder, and the other end of the driving spring abuts against the top surface of the spring expansion cavity.

Preferably, the number of cavities is no greater than the number of stations.

Preferably, the mould further comprises a rotating shaft, wherein the rotating shaft penetrates through the center of the mould bottom plate and is connected with the center of the mould rotary core plate;

the rotating shaft is used for driving the mold rotating core plate to rotate along the center.

Preferably, the machine tool further comprises a machine tool template, and the rotating shaft extends upwards from the center of the machine tool template;

the die bottom plate is superposed on the upper surface of the machine tool template, and the die rotary core plate is superposed on the upper surface of the die bottom plate.

The utility model has the advantages that: the moving core is adopted to change the shape of the cavity to replace the original core-pulling mechanism, so that the secondary product can be conveniently switched between core plate sticking and core plate releasing in the injection molding process.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of a cavity-variable rotary core mold according to the present invention;

fig. 2 shows a partial schematic view of a cross-section along the direction a-a of fig. 1.

Detailed Description

Various embodiments of the present invention will be described with reference to the accompanying drawings. In the specification and drawings, elements having similar structures or functions will be denoted by the same reference numerals. It is to be understood that the drawings are designed solely for the purposes of illustration and description and not as a definition of the limits of the invention. The dimensions shown in the figures are for clarity of description only and are not intended to be limiting, nor are they intended to be exhaustive or to limit the scope of the invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

As shown in fig. 1-2, a cavity-changeable rotary core mold comprises a mold rotary core plate 1 and a mold base plate 2.

The mold rotary core plate 1 is stacked on the mold base plate 2, wherein the mold rotary core plate 1 can rotate along the center. Usually, a machine tool with a rotating shaft 3 is adopted to realize the rotation of the rotating core of the mold, the machine tool comprises the rotating shaft 3 and a machine tool template 4, the mold base plate 2 is stacked on the machine tool template 4, the rotating shaft 3 upwards extends out from the center of the machine tool template 4, and is connected with the center of the rotating core plate 1 of the mold after penetrating through the center of the mold base plate 2, so that the rotating core plate 1 of the mold is driven to rotate along the center, before the rotating core plate 1 of the mold is driven to rotate, the rotating core plate 1 of the mold is jacked up, and the rotating core plate 1 of the mold is separated from the mold base.

The mold rotary core plate 1 is provided with at least one cavity 11, in this embodiment, two cavities 11 are exemplarily provided, and the two cavities 11 are symmetrically arranged along the center of the mold rotary core plate 1. A moving core 5 which penetrates through the rotary core plate 1 of the mold along the axial direction of the rotary core plate 1 of the mold is arranged in the cavity 11, and the moving core 5 can move back and forth along the axial direction of the rotary core plate 1 of the mold. The axial direction here is the up-down direction.

The mould bottom plate 2 is provided with at least two stations which are arranged on a circumference which takes the center of the mould rotary core plate 1 as the circle center; wherein, the surface of the die base plate 2 corresponding to at least one station is provided with an inwards concave containing cavity 21, and the surface of the die base plate 2 corresponding to at least one station is a plane. In the present embodiment, two stations are provided, as an example, symmetrically arranged along the center of the mold base 2.

Generally, the number of cavities 11 is no greater than the number of stations, which in this embodiment are the same.

When the cavity 11 of the mold rotary core plate 1 is correspondingly matched with the accommodating cavity 21, one end surface of the moving core 5 abuts against the bottom surface of the accommodating cavity 21, and the other end surface of the moving core 5 is accommodated in the mold rotary core plate 1 and is flush with the bottom surface of the cavity 11;

when the cavity 11 of the rotary core plate 1 of the mold is correspondingly matched with the plane, one end surface of the moving core 5 is abutted against the plane, and the other end surface of the moving core 5 extends into the cavity 11.

By adopting the core rotating mold in the embodiment, the conversion between the core adhering and rotating and the core releasing of a secondary product in the injection molding process can be conveniently realized.

In one embodiment, in order to prevent the moving core 5 from falling off when the rotating shaft 3 jacks up the rotating core plate 1 of the mold, a limit stop ring is arranged at one end of the cavity 11 into which the moving core 5 can extend, and a limit stop shoulder 12 matched with the limit stop ring is arranged at one side of the rotating core plate 1 of the mold close to the bottom surface of the cavity 11. When the mold rotary core plate 1 is lifted up, the moving core 5 can be hung in the mold rotary core plate 1 without falling off due to the cooperation of the stopper ring and the stopper shoulder 12.

In another embodiment, a driving spring 6 is sleeved on one side of the moving core 5 close to the mold base plate 2, and a spring expansion cavity 13 is arranged on one side of the mold rotary core plate 1 close to the mold base plate 2 corresponding to the driving spring 6. When the cavity 11 of the rotary core plate 1 of the mold is correspondingly matched with the accommodating cavity 21, the spring telescopic cavity 13 is communicated with the accommodating cavity 21 to form a closed cavity.

Correspondingly, one end of the moving core 5 sleeved with the driving spring 6 is provided with a spring stop shoulder, one end of the driving spring 6 abuts against the spring stop shoulder, and the other end of the driving spring 6 abuts against the top surface of the spring expansion cavity 13.

When the cavity 11 of the rotary core plate 1 of the mold is correspondingly matched with the accommodating cavity 21, the rotary core plate is in an initial state, the spring telescopic cavity 13 and the accommodating cavity 21 are communicated to form a closed cavity, one end surface of the moving core 5 sleeved with the driving spring 6 is abutted against the bottom of the accommodating cavity 21, and the other end surface of the moving core 5 is flush with the bottom surface of the cavity 11; in this state, the injection-molded product is stuck to the mold rotary core plate 1.

Then, the rotating shaft 3 jacks up the rotating core plate 1 of the mold, and drives the rotating core plate 1 of the mold to rotate until the cavity 11 of the rotating core plate 1 of the mold is correspondingly matched with a station of another station plane, because the station is a plane, after the rotating shaft 3 descends, one end surface of the moving core 5 sleeved with the driving spring 6 abuts against the plane to jack up the moving core 5, so that the separation between the product and the rotating core plate 1 of the mold is realized, and at the moment, the driving spring 6 is compressed in the spring telescopic cavity 13.

When the mold rotary core plate 1 is driven to rotate again to the corresponding matching position of the cavity 11 of the mold rotary core plate 1 and the accommodating cavity 21, the moving core 5 falls downwards under the driving of the driving spring 6 until one end face, sleeved with the driving spring 6, of the moving core 5 abuts against the bottom face of the accommodating cavity 21, and then the moving core 5 is reset.

By adopting the rotary core die, the change of the state that the secondary product is adhered to and separated from the rotary core plate of the die can be conveniently realized. When the state change from the separation of the secondary product from the core rotating plate of the die to the adhesion is needed, only reverse operation is needed.

Although specific embodiments of the present invention have been described above, it will be understood by those skilled in the art that this is by way of example only and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and the principles of the present invention, and these changes and modifications are all within the scope of the present invention.

Claims

1. A rotary core die with a variable cavity is characterized by comprising a die rotary core plate and a die bottom plate;

2. The core-rotating mold with the changeable cavity according to claim 1, wherein one end of the moving core, which can extend into the cavity, is provided with a limit stop ring;

3. The rotary core die with the variable cavity according to claim 1, wherein a driving spring is sleeved on one side of the moving core close to the die bottom plate, and a spring telescopic cavity is arranged on one side of the die rotary core plate close to the die bottom plate and corresponds to the driving spring.

4. A rotary core die with a changeable cavity according to claim 3, wherein when the cavity of the rotary core plate is correspondingly matched with the accommodating cavity, the spring expansion cavity and the accommodating cavity are communicated to form a closed cavity.

5. The variable cavity rotary core die of claim 3, wherein one end of the moving core sleeve having the driving spring is provided with a spring shoulder, one end of the driving spring abuts against the spring shoulder, and the other end of the driving spring abuts against the top surface of the spring expansion cavity.

6. The core-rotating mold with changeable cavities according to claim 1, wherein the number of the cavities is not more than the number of the stations.

7. The rotary core die with the variable cavity of any one of claims 1 to 6, further comprising a rotating shaft, wherein the rotating shaft penetrates through the center of the die bottom plate and is connected with the center of the die rotary core plate;

8. The variable cavity rotary core die of claim 7, further comprising a machine tool die plate, wherein the rotating shaft extends upwards from the center of the machine tool die plate;