CN219947025U - Double-color forming die - Google Patents

Abstract

The utility model discloses a double-color forming die which comprises a rotary table, a first movable die and a second movable die, wherein two fixed dies are arranged on the rotary table and can be respectively connected with the first movable die and the second movable die, a first color cavity is arranged at the joint of the first movable die and the fixed die and is used for forming a first color product, a second color cavity is arranged at the joint of the second movable die and the fixed die, and the second color cavity is sleeved on the periphery of one side, close to the fixed die, of the first color product; the first movable mould is internally provided with a first sliding component which is used for opening the first color cavity, the second movable mould is internally provided with a second sliding component which is used for opening the second color cavity. The utility model adopts double-color injection molding, can mold the handle with soft rubber at one time, and the upper cover and the lower cover of the handle are integrally injection molded, thereby greatly improving the processing efficiency and effectively solving the problem of higher assembly reject ratio.

Description

Double-color forming die

Technical Field

The utility model relates to the technical field of injection molds, in particular to a two-color forming mold.

Background

Fig. 1 shows a bicolor plastic product, which is a handle for audio equipment, etc., and a layer of soft rubber 200 is often arranged on the back of the handle for improving the hand feeling and increasing the friction. The conventional method is to separately injection mold the handle and the soft rubber, wherein when the handle is injection molded, the upper cover and the lower cover of the handle are separately injection molded, then the upper cover and the lower cover are mounted together, and then the soft rubber 200 is coated on the end surface of the lower cover of the handle far away from the upper cover, and the upper cover and the lower cover are mounted and fixed. The three times of injection molding are adopted, so that the processing efficiency is very low; the manual assembly is not only slow, but also the quality cannot be ensured; therefore, the processing mode has lower efficiency and higher defective products.

Disclosure of Invention

In order to solve the problems in the prior art, the utility model provides a double-color forming die, which comprises a rotary table, a first movable die and a second movable die, wherein two fixed dies are arranged on the rotary table and can be respectively connected with the first movable die and the second movable die, a first color cavity is arranged at the joint of the first movable die and the fixed die and is used for forming a first color product, a second color cavity is arranged at the joint of the second movable die and the fixed die, and the second color cavity is sleeved on the periphery of one side of the first color product, which is close to the fixed die; the first movable mould is internally provided with a first sliding component, the first sliding component is in sliding connection with the first movable mould, the first sliding component can slide out of the first movable mould, the first sliding component is used for opening the first color cavity, the second movable mould is internally provided with a second sliding component, the second sliding component is in sliding connection with the second movable mould, the second sliding component can slide out of the second movable mould, and the second sliding component is used for opening the second color cavity.

As a further improvement of the utility model, the first sliding component comprises two sliding blocks which are distributed in a mirror image way, the sliding blocks can extend into or extend out of the first movable mould, the outer side walls of the sliding blocks are matched with the inclined surfaces of the inner side walls of the first movable mould, so that the two sliding blocks are mutually close to or separated from each other, forming blocks are respectively arranged on the sliding blocks, the forming blocks can extend into the first color cavity, and the two forming blocks can be in sealing abutting connection.

As a further improvement of the utility model, a plurality of sliding grooves are arranged on the outer side wall of the sliding block, clamping blocks are respectively arranged on the inner side wall of the first movable mould and at the positions corresponding to the sliding grooves, and the clamping blocks are in sliding clamping connection with the corresponding sliding grooves.

As a further improvement of the utility model, a plurality of first clamping blocks are arranged on the lower end face of the sliding block, second clamping blocks are respectively arranged on the fixed die and correspond to the first clamping blocks, and the first clamping blocks are detachably connected with the corresponding second clamping blocks.

As a further improvement of the utility model, a plurality of wear-resisting blocks are arranged on the outer side wall of the sliding block, and the wear-resisting blocks are in sliding connection with the inner side wall of the first movable die.

As a further improvement of the utility model, a limiting block is arranged on the upper end surface of the fixed die, limiting grooves are respectively arranged at the positions corresponding to the limiting block on the forming block, and the limiting grooves can be in limiting clamping connection with the limiting block.

As a further improvement of the utility model, the fixed die is respectively provided with a guide hole, the positions of the first movable die and the second movable die corresponding to the guide holes are respectively provided with a guide post, and the guide posts are inserted into the corresponding guide holes to be connected in a sliding way.

As a further improvement of the utility model, a plurality of positioning blocks are arranged on the upper end surface of the fixed die, positioning grooves are respectively arranged at the positions corresponding to the positioning blocks on the first movable die and the second movable die, and the positioning blocks can be in limiting clamping connection with the corresponding positioning grooves.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, after the first movable die and the fixed die are clamped, a first color product can be directly molded in a first color cavity, and the first color product comprises an upper cover and a lower cover of a handle; then the injection molding machine drives the mold opening, so that the first sliding component slides out of the first movable mold, thereby opening the first color cavity, and enabling the first color product to be retained on the fixed mold after the mold opening; the rotary table is driven to rotate through the injection molding machine, so that the positions of the two fixed molds are changed, and the fixed mold formed with the first color product is aligned with the second movable mold; and then carrying out secondary injection molding in the second color cavity from the new die assembly, namely molding the soft rubber on one side of the handle close to the fixed die. In actual processing, the mold is opened and closed once, and the first color cavity and the second color cavity are molded once respectively.

Drawings

In order to more clearly illustrate the utility model or the solutions of the prior art, a brief description will be given below of the drawings used in the description of the embodiments or the prior art, it being obvious that the drawings in the description below are some embodiments of the utility model and that other drawings can be obtained from them without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a product structure processed by an embodiment of the utility model;

FIG. 2 is a schematic diagram showing a mold closing state structure according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram of an open mold state structure according to an embodiment of the present utility model;

FIG. 4 is an enlarged schematic view of the portion A in FIG. 3;

FIG. 5 is a schematic diagram showing an exploded structure of a first movable mold according to an embodiment of the present utility model;

FIG. 6 is a schematic view of a first sliding component or a second sliding component according to an embodiment of the present utility model;

fig. 7 is a schematic view of another view angle structure of the first sliding component or the second sliding component according to an embodiment of the utility model.

Detailed Description

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs; the terminology used in the description is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model; the terms "comprising" and "having" and any variations thereof in the description of the utility model and the claims and the description of the drawings above are intended to cover a non-exclusive inclusion. The terms first, second and the like in the description and in the claims or in the above-described figures, are used for distinguishing between different objects and not necessarily for describing a sequential or chronological order.

Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the utility model. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the described embodiments of the utility model may be combined with other embodiments.

In order to enable those skilled in the art to better understand the present utility model, a technical solution in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings.

As shown in fig. 1-7, a two-color forming mold comprises a rotary table 1, a first movable mold 2 and a second movable mold 3, wherein two fixed molds 4 are fixedly arranged on the rotary table 1, and the two fixed molds 4 can be respectively connected with the first movable mold 2 and the second movable mold 3; during operation, the rotary table 1, the first movable die 2 and the second movable die 3 are respectively installed on the injection molding machine, and the injection molding machine can drive the rotary table 1 to rotate, so that the two fixed dies 4 realize position exchange, and double-shot injection molding is realized. The junction of first movable mould 2 and cover half 4 is equipped with first color die cavity 21, and first color die cavity 21 is used for shaping first color product 100, and the junction of second movable mould 3 and cover half 4 sets up second color die cavity 31, and second color die cavity 31 cup joints the periphery of first color product 100 near cover half 4 one side.

During processing, after the mold is closed, forming a first color product 100 in the first color cavity 21, wherein the first color product 100 comprises an upper cover and a lower cover of a handle; then opening the mold, wherein the first color product 100 is retained on the fixed molds 4, and driving the turntable 1 to rotate, so that the positions of the two fixed molds 4 are exchanged; and then closing the mold, injecting glue stock into the second color cavity 31, wrapping the end surface of the first color product 100, which is close to one side of the fixed mold 4, and cooling and forming, so as to form the soft glue 200 on the lower end surface of the first color product 100.

In actual processing, the first color cavity 21 and the second color cavity 31 may be injection molded at the same time, i.e., the mold is opened and closed once, one first color product 100 is molded in the first color cavity 21, and the soft gel 200 is molded on the first color product 100 in the second color cavity 31, thereby molding the entire product. This double-colored forming die can once only take shape the handle that has flexible glue 200, and the upper cover and the lower cover integrated into one piece injection moulding of handle can improve machining efficiency by a wide margin, also can effectively improve the problem that the equipment defective rate is higher.

Be equipped with first slip subassembly in the first movable mould 2, first slip subassembly and first movable mould 2 sliding connection, and first slip subassembly can roll out first movable mould 2, and first slip subassembly is used for opening first color die cavity 21 to be convenient for after first color product 100 shaping, leave first color product 100 on the cover half 4. After the die assembly is completed, the first sliding component slides into the first movable die 2, and a first color cavity 21 for forming the first color product 100 can be formed among the upper end face of the first sliding component, the lower end face of the first movable die 2 and the upper end face of the fixed die 4, so that the first color product 100 can be formed conveniently. When the mold is opened, the first sliding component slides out of the first movable mold 2, so that the first color cavity 21 is opened, the first color product 100 is reserved on the fixed mold 4, and the turntable 1 can drive the fixed mold 4 with the first color product 100 to be aligned with the second movable mold 3.

The second movable mould 3 is internally provided with a second sliding component, the second sliding component is in sliding connection with the second movable mould 3, and the second sliding component can slide out of the second movable mould 3 and is used for opening the second color cavity 31, so that after the mould is opened, a molded product is taken out from the second color cavity 31 conveniently. When the mold is closed, the first color product 100 on the fixed mold 4 stretches into the second movable mold 3, and the second sliding component is sleeved on the periphery of one side, close to the fixed mold 4, of the first color product 100; after the mold is closed, the second sliding assembly slides into the second movable mold 3, so that a second color cavity 31 for molding the soft rubber 200 is formed between the upper end surface of the second sliding assembly and the lower surface of the first color product 100; then, glue stock is injected into the second color cavity 31, and the soft glue 200 can be formed on the end face of the first color product 100, which is close to the side of the fixed mold 4, so as to complete the second color injection molding. When the mold is opened, the second sliding component slides out of the second movable mold 3, so that the second color cavity 31 is opened, the molded product is retained on the fixed mold 4, and the molded product is taken out of the fixed mold 4 conveniently.

Specifically, the first sliding component includes two sliders 5 that are mirror image distribution, and slider 5 can stretch into or stretch out first movable mould 2, and the lateral wall of slider 5 and the inside wall inclined plane cooperation of first movable mould 2 to when making slider 5 slide into or stretch out first movable mould 2, two sliders 5 can move towards the direction that draws close or separate each other, are equipped with shaping piece 6 on the slider 5 respectively, and shaping piece 6 can stretch into in the first color chamber 21, and two shaping pieces 6 can seal the butt. Two first clamping blocks 7 are respectively arranged on the lower end face of each sliding block 5, second clamping blocks 8 are respectively arranged at positions, corresponding to the first clamping blocks 7, on the fixed die 4, of the first clamping blocks 7, the corresponding second clamping blocks 8 are detachably connected in a clamping mode, and the sliding blocks 5 can be pulled out from the first movable die 2 through the cooperation of the first clamping blocks 7 and the second clamping blocks 8.

In the die assembly state, the two sliding blocks 5 slide into the first movable die 2 respectively, the end surfaces of the two forming blocks 6 are mutually abutted, and the first clamping blocks 7 are clamped with the corresponding second clamping blocks 8; so that a first color cavity 21 is formed on the upper end surfaces of the two molding blocks 6, the lower end surface of the first movable mold 2 and the upper end surface of the fixed mold 4, and the injection molding machine injects sizing material into the first color cavity 21 to mold a first color product 100. When the mold is opened, the injection molding machine drives the first movable mold 2 to move in a direction away from the fixed mold 4, so that the second clamping block 8 pulls the first clamping block 7 and the sliding block 5 to slide out of the first movable mold 2; because the sliding blocks 5 are in inclined plane fit with the first movable die 2, in the process that the sliding blocks 5 slide out of the first movable die 2, the two sliding blocks 5 can move in the mutually separated directions, so that the two forming blocks 6 are separated, the first color cavity 21 is opened, and the first color product 100 is reserved on the fixed die 4; when the sliding block 5 moves to the preset position, the first clamping block 7 is unhooked from the second clamping block 8, and at the moment, the sliding block 5 stops moving when the driving force is lost. When the mold is closed again, the injection molding machine drives the first movable mold 2 to move towards the direction close to the fixed mold 4, after the first clamping block 7 and the second clamping block 8 on the sliding block 5 are aligned, the first clamping block 7 and the second clamping block 8 are clamped with each other, and the second clamping block 8 pushes the sliding block 5 to slide into the first movable mold 2 along with the continuous pushing of the first movable mold 2 by the injection molding machine; the two sliders 5 move in directions toward each other until the two molding blocks 6 abut against each other.

In order to limit and guide the movement direction of the sliding block 5, two sliding grooves 51 are arranged on the outer side wall of the sliding block 5, clamping blocks 22 are respectively arranged on the inner side wall of the first movable die 2 at positions corresponding to the sliding grooves 51, and the clamping blocks 22 are in sliding clamping connection with the corresponding sliding grooves 51. The stability of the motion of the sliding block 5 can be improved through the cooperation of the clamping block 22 and the sliding groove 51, and the accuracy of transmission is improved, so that the precision of injection molding processing is guaranteed.

The wear-resisting blocks 9 are respectively arranged on the three outer side walls of the sliding block 5, which are in sliding fit with the first movable die 2, the wear-resisting blocks 9 are in sliding connection with the inner side walls of the first movable die 2, and the wear of the sliding block 5 in the die opening and closing process can be reduced by arranging the wear-resisting blocks 9, so that the machining precision is improved, and the service life is prolonged.

The upper end face of each fixed die 4 is respectively provided with a limiting block 10, the forming block 6 is respectively provided with a limiting groove 61 at the corresponding position of the limiting block 10, and the limiting grooves 61 can be in limiting clamping connection with the limiting blocks 10. Through the cooperation of spacing groove 61 and stopper 10, can carry out spacingly to the stroke in the slider 5 slip first movable mould 2, also can make slider 5 and cover half 4 spacing fixed. During specific work, in the die assembly process, as the two sliding blocks 5 slide into the first movable die 2, the two forming blocks 6 can be mutually close, the limiting groove 61 can be connected with the limiting block 10 until the limiting groove 61 is clamped with the limiting block 10, so that the forming blocks 6 are in limiting fixation with the fixed die 4.

In this embodiment, the structure of the second sliding component is substantially the same as that of the first sliding component, and the difference is that the shape of the first color cavity 21 in the molding block 6 in the first sliding component is slightly different from the shape of the second color cavity 31 in the molding block 6 in the second sliding component; and this difference is determined according to the shape of the product to be processed; therefore, the specific structure of the second slide assembly is not described herein.

Each fixed die 4 is provided with a guide hole 41, the guide holes 41 are respectively arranged at the corners of the 4 peripheral sides of the two fixed dies 4, guide posts 11 are respectively arranged at the positions of the first movable die 2 and the second movable die 3 corresponding to the guide holes 41, and the guide posts 11 are inserted into the corresponding guide holes 41 for sliding connection. When the mold is opened or closed, the guide posts 11 slide in the corresponding guide holes 41; through the cooperation of guide post 11 and guiding hole 41 for the die sinking process is more stable, also is convenient for realize the prepositioning when the compound die, improves driven precision.

The upper end face of each fixed die 4 is respectively provided with 4 positioning blocks 42, the directions of the 4 positioning blocks 42 are different, the corresponding positions of the first movable die 2 and the second movable die 3 and the positioning blocks 42 are respectively provided with positioning grooves 23, the positioning grooves 23 are matched with the corresponding positioning blocks 42 in shape, and the positioning blocks 42 can be in limiting clamping connection with the corresponding positioning grooves 23. The matching of the positioning block 42 and the positioning groove 23 can make the die assembly process of the two-color forming die smoother; after the mold is closed, the positioning blocks 42 are respectively clamped into the corresponding positioning grooves 23, so that the movable mold and the fixed mold 4 are fixedly clamped, the sealing performance is improved, and the possibility of dislocation of the mold in the injection molding process is reduced.

The foregoing embodiments are preferred embodiments of the present utility model, and are not intended to limit the scope of the utility model, which is defined by the appended claims, but rather by the following claims.

Claims (8)

1. A double-color forming die is characterized in that: the rotary table is provided with two fixed molds, the two fixed molds can be connected with the first movable mold and the second movable mold respectively, a first color cavity is formed at the joint of the first movable mold and the fixed mold and is used for forming a first color product, a second color cavity is formed at the joint of the second movable mold and the fixed mold, and the second color cavity is sleeved on the periphery of one side of the first color product, which is close to the fixed mold;

the first movable mould is internally provided with a first sliding component, the first sliding component is in sliding connection with the first movable mould, the first sliding component can slide out of the first movable mould, the first sliding component is used for opening the first color cavity, the second movable mould is internally provided with a second sliding component, the second sliding component is in sliding connection with the second movable mould, the second sliding component can slide out of the second movable mould, and the second sliding component is used for opening the second color cavity.

2. The two-color molding die according to claim 1, wherein: the first sliding component comprises two sliding blocks which are in mirror image distribution, the sliding blocks can extend into or extend out of the first movable die, the outer side walls of the sliding blocks are matched with the inner side wall inclined surfaces of the first movable die, so that the two sliding blocks are close to each other or separated from each other, forming blocks are respectively arranged on the sliding blocks, the forming blocks can extend into the first color cavity, and the two forming blocks can be in sealing butt joint.

3. The two-color molding die according to claim 2, wherein: the sliding block is characterized in that a plurality of sliding grooves are formed in the outer side wall of the sliding block, clamping blocks are respectively arranged on the inner side wall of the first movable die and at positions corresponding to the sliding grooves, and the clamping blocks are in sliding clamping connection with the corresponding sliding grooves.

4. The two-color molding die according to claim 2, wherein: the lower end face of the sliding block is provided with a plurality of first clamping blocks, second clamping blocks are respectively arranged at positions on the fixed die corresponding to the first clamping blocks, and the first clamping blocks are detachably connected with the corresponding second clamping blocks.

5. The two-color molding die according to claim 2, wherein: the outer side wall of the sliding block is provided with a plurality of wear-resisting blocks which are in sliding connection with the inner side wall of the first movable die.

6. The two-color molding die according to claim 2, wherein: the upper end face of the fixed die is provided with a limiting block, limiting grooves are respectively formed in the corresponding positions of the forming blocks and the limiting block, and the limiting grooves can be in limiting clamping connection with the limiting block.

7. The two-color molding die according to any one of claims 1 to 6, characterized in that: the fixed die is provided with guide holes, guide columns are respectively arranged at the positions corresponding to the guide holes on the first movable die and the second movable die, and the guide columns are inserted into the corresponding guide holes and are connected in a sliding mode.

8. The two-color molding die according to claim 7, wherein: the upper end face of the fixed die is provided with a plurality of positioning blocks, positioning grooves are respectively arranged at the positions corresponding to the positioning blocks on the first movable die and the second movable die, and the positioning blocks can be in limiting clamping connection with the corresponding positioning grooves.