CN217144661U

CN217144661U - Automatic double-colored continuous injection mold of drawing of patterns formula

Info

Publication number: CN217144661U
Application number: CN202220641222.1U
Authority: CN
Inventors: 吉正权
Original assignee: Yancheng Xinyao Mould Co ltd
Current assignee: Yancheng Xinyao Mould Co ltd
Priority date: 2022-03-23
Filing date: 2022-03-23
Publication date: 2022-08-09
Anticipated expiration: 2032-03-23

Abstract

The utility model discloses an automatic demoulding type double-color continuous injection mould, which comprises two movable mould components, a first fixed mould component and a second fixed mould component, wherein the first fixed mould component and the second fixed mould component respectively correspond to the two movable mould components; the movable die assembly comprises a movable die base and a movable die core, one end of the movable die core, which is far away from the movable die base, is provided with a floating groove, and an ejection block is arranged in the floating groove in a sliding manner; an ejection channel is axially formed in the movable mold core, an ejection rod is arranged in the ejection channel, one end of the ejection rod is connected with the telescopic mechanism, the other end of the ejection rod is arranged at an interval with the ejection block, and an adjusting groove with an inclined bottom is formed in the side wall of the ejection rod; the movable mold core is radially provided with an air blowing channel, a guide rod is arranged in the air blowing channel in a sliding mode, and the guide rod is abutted to the bottom of the adjusting groove. The guide rod and the ejection block are sequentially moved through the ejection rod, vacuum between a product and the movable mold core is eliminated, damage such as product deformation and whitening caused by the ejection block is avoided, the quality of the product is guaranteed, material cost is saved, and production efficiency is improved.

Description

Automatic double-colored continuous injection mold of drawing of patterns formula

Technical Field

The utility model relates to an injection mold technical field especially relates to an automatic two-color continuous injection mold of drawing of patterns formula.

Background

The double-color injection molding is a molding process for injecting two different materials into the same set of mold, thereby improving the aesthetic property and the assembly performance of the product, and products with various mixed color patterns and products with obvious color separation can be prepared. The double-color injection molding machine is generally provided with an ejection mechanism for ejecting a molded product out of a mold, so that the product is conveniently demoulded.

However, in the process of implementing the technical solution of the present invention in the embodiment of the present application, the inventors of the present application find that the above-mentioned technology has at least the following problems:

the existing double-color injection mold may form vacuum between the mold and a product after processing, and an ejection mechanism is easy to cause the occurrence of mold stripping marks such as top white, deformation and the like of a workpiece during mold stripping, thereby affecting the appearance of the product and reducing the quality of the product; meanwhile, the material waste is caused, and the production efficiency is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an automatic two-color continuous injection mold of drawing of patterns formula to solve the technical problem who mentions in the background art, the utility model discloses a purpose is realized through following technical scheme:

an automatic demolding type double-color continuous injection mold comprises two movable mold assemblies arranged on a rotating platform of an injection molding machine, wherein a first fixed mold assembly and a second fixed mold assembly which respectively correspond to the two movable mold assemblies are arranged on the injection molding machine; the movable die assembly comprises a movable die seat and a movable die core, the movable die core is mounted on the rotary platform through the movable die seat, a floating groove is formed in one end, away from the movable die seat, of the movable die core, and an ejection block is arranged in the floating groove in a sliding mode; an ejection channel is axially formed in the movable mold core, an ejection rod is arranged in the ejection channel, one end of the ejection rod penetrates through the movable mold base and the rotary platform to be connected with the telescopic mechanism, the other end of the ejection rod and the ejection block are arranged at intervals, an adjusting groove is formed in the side wall of the ejection rod, and the bottom of the adjusting groove is an inclined surface; the movable mold core is radially provided with an air blowing channel, a guide rod is arranged in the air blowing channel in a sliding mode, and one end of the guide rod is abutted to the bottom of the adjusting groove.

Furthermore, the side wall of the ejector rod is provided with an air inlet, and the center of the ejector rod is provided with an air inlet channel communicated with the air inlet.

Furthermore, a spring is arranged between the ejection block and the floating groove, and the spring is positioned at one end, far away from the movable mold base, of the ejection block.

Furthermore, a step is arranged in the middle of the guide rod, a spring is sleeved on the guide rod, and the spring is located on one side, away from the ejector rod, of the step.

Furthermore, the first fixed die assembly comprises a first fixed die base and a first fixed die sleeve, the first fixed die sleeve is installed on the injection molding machine through the first fixed die base, a first feeding hole is formed in the bottom of the first fixed die sleeve, and a first feeding channel communicated with the first feeding hole is formed in the first fixed die base.

Further, the second fixed die assembly comprises a second fixed die seat and a second fixed die sleeve, the second fixed die sleeve is installed on the injection molding machine through the second fixed die seat, a second feeding hole is formed in the bottom of the second fixed die sleeve, and a second feeding channel communicated with the second feeding hole is formed in the second fixed die seat.

Further, the telescopic mechanism is a worm gear speed reduction motor.

The technical scheme provided by the embodiment of the application at least has the following technical effects or advantages:

when the ejector rod is contracted, the guide rod and the ejector block are flush with the surface of the movable mold core under the pressure of the spring; when the ejector rod extends, the guide rod moves downwards along the inclined surface of the adjusting groove, air is blown between the movable mold core and the product through the air inlet, vacuum between the product and the movable mold core is eliminated, the ejector rod continues to extend to be abutted against the ejector block, and therefore the product is ejected out to realize demolding; the guide rod and the ejection block are sequentially moved through the ejection rod, vacuum between a product and the movable mold core is eliminated, damage such as product deformation and whitening caused by the ejection block is avoided, the quality of the product is guaranteed, material cost is saved, and production efficiency is improved.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.

FIG. 1 is a schematic structural diagram of an embodiment of the present application;

FIG. 2 is an enlarged view of a portion of FIG. 1;

FIG. 3 is a schematic structural diagram of an ejection state of a movable mold assembly according to an embodiment of the present application;

fig. 4 is a partially enlarged view of fig. 3.

In the drawings, there is shown: 1. rotating the platform; 2. a movable die assembly; 21. a movable die holder; 22. a movable mold core; 23. ejecting a block; 24. ejecting the rod; 241. an adjustment groove; 242. an air intake passage; 25. a guide bar; 3. a first die assembly; 31. a first fixed die holder; 32. a first fixed die sleeve; 4. a second stationary mold assembly; 41. a second fixed die holder; 42. a second die sleeve; 5. a telescoping mechanism.

Detailed Description

For better understanding of the above technical solutions, the following detailed descriptions will be made in conjunction with the accompanying drawings and the detailed description of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1, the automatic demolding type two-color continuous injection mold comprises two movable mold assemblies 2 mounted on a rotary platform 1 of an injection molding machine, and a first fixed mold assembly 3 and a second fixed mold assembly 4 respectively corresponding to the two movable mold assemblies 2, wherein the two movable mold assemblies 2, the first fixed mold assembly 3 and the second fixed mold assembly 4 can be respectively switched by rotating the rotary platform 1.

Specifically, as shown in fig. 1 to 3, the movable mold assembly 2 includes movable mold bases 21 and movable mold cores 22, the two movable mold bases 21 are respectively fixed to the rotary platform 1 of the injection molding machine (not shown) by bolts, and the movable mold cores 22 are fixed to the movable mold bases 21 by bolts. The movable mold core 22 is of a frustum shape, a floating groove is formed in the right side of the movable mold core 22, an ejection block 23 is arranged in the floating groove in a sliding mode, a spring is sleeved on the right side of the ejection block 23, and the spring applies leftward thrust to the ejection block 23 to enable the top surface of the ejection block 23 to be flush with the top surface of the movable mold core 22.

An ejection channel is axially formed in the movable mold core 22, an ejection rod 24 is slidably arranged in the ejection channel, the left end of the ejection rod 24 penetrates through the movable mold base 21 and the rotary platform 1 to be connected with the telescopic mechanism 5, and the right end of the ejection rod 24 is arranged at an interval with the ejection block 23. Preferably, the telescoping mechanism 5 is a worm gear and worm speed reduction motor, the left end of the ejector rod 24 is connected with the worm gear and worm speed reduction motor through a worm, and the worm gear and worm speed reduction motor drives the ejector rod 24 to move along the ejection channel. The side wall of the ejector rod 24 is provided with four adjusting grooves 241, and the bottoms of the adjusting grooves 241 are inclined planes.

As shown in fig. 2 and 3, four air blowing channels are radially formed in the movable mold core 22, and the positions of the four air blowing channels correspond to the positions of the four adjusting grooves 241 one by one; a guide rod 25 is arranged in the air blowing channel in a sliding mode, the inner end of the guide rod 25 is abutted to the bottom of the adjusting groove 241, a step is arranged in the middle of the guide rod 25, a spring is sleeved on the guide rod 25 and located on one side, far away from the ejector rod 24, of the step and used for applying pressure towards one side of the ejector rod 24 to the guide rod.

As shown in fig. 1-3, the left end of the adjusting groove of the ejector rod 24 is provided with an air inlet, the center of the ejector rod 24 is provided with an air inlet channel 242 communicated with the air inlet, and the air inlet channel 242 is connected with a high-pressure air source through an electromagnetic valve.

As shown in fig. 1 and 2, during injection molding, the ejector rod 24 is located at the left side, the inner end of the guide rod 25 abuts against the top of the inclined surface of the adjusting groove 241, and the upper end of the guide rod 25 is flush with the movable mold core 22; the right end of the ejector rod 24 is far away from the ejector block 23, and the right side of the ejector block 23 is flush with the movable mold core 22;

as shown in fig. 3 and 4, during demolding, the ejector rod 24 moves to the right, the inner end of the guide rod 25 slides down along the inclined plane of the adjusting groove 241, the guide rod moves down under the action of the spring, and the high-pressure air source blows air between the movable mold core 22 and the product through the air inlet channel and the air blowing channel to break the vacuum between the movable mold core 22 and the product; the ejector rod 24 continues to move rightwards to abut against the ejector block 25, the ejector block 25 is pushed to move rightwards, the product is pushed out of the movable mold core 22, and automatic demolding of the product is achieved.

Specifically, as shown in fig. 1, the first fixed die assembly 3 includes a first fixed die holder 31 and a first fixed die sleeve 32, the first fixed die holder 31 is connected to the injection molding machine through a bolt, the first fixed die sleeve 32 is connected to the first fixed die holder 31 through a bolt, a first cavity for one-time injection molding is formed in the first fixed die sleeve 32, a first feed opening is formed in the bottom of the first cavity, a first feed channel communicated with the first feed opening is formed in the first fixed die holder 31, and the injection molding machine injects a first material into the first cavity through the first feed channel for one-time injection molding.

The second fixed die assembly 4 comprises a second fixed die base 41 and a second fixed die sleeve 42, the second fixed die base 41 is connected with the injection molding machine through a bolt, the second fixed die sleeve 42 is connected with the second fixed die base 41 through a bolt, a second cavity for secondary injection molding is formed in the second fixed die sleeve 42, the size of the second cavity is larger than that of the first cavity, a second feeding hole is formed in the bottom of the second cavity, a second feeding channel communicated with the second feeding hole is formed in the second fixed die base 41, and a second material is injected into the second cavity by the injection molding machine through the second feeding channel for secondary injection molding. The specific structure, the installation mode and the injection molding process of the first fixed mold assembly and the second fixed mold assembly are all the prior art and are not described redundantly.

The utility model discloses a theory of operation does:

firstly, the ejector rod is positioned on the left side, the movable die assembly moves to the right to be matched with the first fixed die assembly, and the movable die assembly moves to the left after one-time injection molding is finished;

then, rotating the rotary platform by 180 degrees, moving the movable mold component to the right, closing the mold with the second fixed mold component, and moving the movable mold component to the left after the secondary injection molding is finished;

and finally, the telescoping mechanism drives the ejector rod to move right, and automatic demolding of the product is completed after vacuum breaking and material pushing actions are completed in sequence.

The technical scheme in the embodiment of the application at least has the following technical effects or advantages:

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element in question must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present invention: the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an automatic two-color continuous injection mold of mode of demoulding, includes two movable mould subassemblies of installing on injection molding machine rotary platform, be provided with on the injection molding machine with two first cover half subassembly, the second cover half subassembly that the movable mould subassembly corresponds respectively, its characterized in that:

the movable die assembly comprises a movable die holder and a movable die core, the movable die core is installed on the rotary platform through the movable die holder, a floating groove is formed in one end, far away from the movable die holder, of the movable die core, and an ejection block is arranged in the floating groove in a sliding mode;

an ejection channel is axially formed in the movable mold core, an ejection rod is arranged in the ejection channel, one end of the ejection rod penetrates through the movable mold base and the rotary platform to be connected with a telescopic mechanism, the other end of the ejection rod and the ejection block are arranged at intervals, an adjusting groove is formed in the side wall of the ejection rod, and the bottom of the adjusting groove is an inclined plane;

the movable mold core is radially provided with a blowing channel, a guide rod is arranged in the blowing channel in a sliding mode, and one end of the guide rod is abutted to the bottom of the adjusting groove.

2. The automatic demolding type two-color continuous injection mold according to claim 1, wherein the side wall of the ejector rod is provided with an air inlet, and the center of the ejector rod is provided with an air inlet passage communicated with the air inlet.

3. The automatic, two-shot, continuous, injection mold of claim 1 wherein a spring is disposed between said ejector block and said float slot, said spring being located at an end of said ejector block remote from said movable mold base.

4. The automatic demolding type two-color continuous injection mold according to claim 1, wherein a step is provided in the middle of the guide rod, and a spring is sleeved on the guide rod and is positioned on the side of the step far away from the ejector rod.

5. The automatic demolding type two-color continuous injection mold according to claim 1, wherein the first fixing mold assembly comprises a first fixing mold seat and a first fixing mold sleeve, the first fixing mold sleeve is installed on the injection molding machine through the first fixing mold seat, a first feed port is formed in the bottom of the first fixing mold sleeve, and a first feed channel communicated with the first feed port is formed in the first fixing mold seat.

6. The automatic demolding type two-color continuous injection mold according to claim 1, wherein the second fixed mold assembly comprises a second fixed mold seat and a second fixed mold sleeve, the second fixed mold sleeve is installed on the injection molding machine through the second fixed mold seat, a second feeding hole is formed in the bottom of the second fixed mold sleeve, and a second feeding channel communicated with the second feeding hole is formed in the second fixed mold seat.

7. The automatic release type two-color continuous injection mold according to claim 1, wherein the telescoping mechanism is a worm gear speed reduction motor.