CN218399274U

CN218399274U - Bidirectional ejection die

Info

Publication number: CN218399274U
Application number: CN202222336475.0U
Authority: CN
Inventors: 陈玖万
Original assignee: Xiamen Ningjia Industry And Trade Co ltd
Current assignee: Xiamen Ningjia Industry And Trade Co ltd
Priority date: 2022-09-02
Filing date: 2022-09-02
Publication date: 2023-01-31
Anticipated expiration: 2032-09-02

Abstract

The utility model discloses a bidirectional ejection die, which comprises a movable die set, a fixed die set and a die core, wherein the die core is provided with a molding cavity and comprises a movable die core and a fixed die core which are mutually buckled, and the movable die core and the fixed die core are respectively embedded in the movable die set and the fixed die set; the ejector pin penetrates through the movable mold core and extends into the molding cavity, and the product is ejected out towards the mold opening direction of the fixed mold group; the fixed mold core comprises a fixed mold insert and a movable core; the movable core is arranged in the through hole of the fixed die insert and pushes out a product towards the die opening direction of the movable die set. The utility model discloses increase towards the ejection mechanism of movable mould composition to, the ejection mechanism in the module is moved in the cooperation, realizes that two-way product is ejecting, reaches the purpose of product drawing of patterns, utilizes two-way and ejecting operation in proper order to avoid the adhesion of product and shaping intracavity wall, ensures the complete drawing of patterns of product, promotes product machining efficiency and reduces the processing cost.

Description

Bidirectional ejection die

Technical Field

The utility model belongs to the technical field of two-way ejecting mould and specifically relates to a can realize two-way ejecting mould of two-way ejecting.

Background

The wall seat injection mold disclosed in the Chinese published patent publication No. CN216267311U only utilizes the fixed mold group direction to perform straight ejection when a product is ejected and demoulded, thereby realizing the ejection of the product after the mold is opened. The ejection structure of the mold is easy to cause the adhesion phenomenon between a product and the inner wall of a forming cavity in the demolding process, and directly influences the product quality and the product processing efficiency.

Therefore, how to improve the ejection structure of the existing injection mold, avoiding the adhesion phenomenon between the product and the inner wall of the molding cavity in the product demolding process, and improving the product quality and the processing efficiency is one of the technical problems to be solved by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

For solving the technical problem that exists among the prior art, the utility model aims to provide a can realize two-way ejecting mould of two-way ejecting.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a two-way ejecting mould, its includes moves module, decides module and mold core, wherein:

the mold core is provided with a molding cavity and comprises a movable mold core and a fixed mold core which are mutually buckled, and the movable mold core and the fixed mold core are respectively embedded in the movable mold module and the fixed mold module;

a thimble is arranged in the movable module; the ejector pin penetrates through the movable mold core and extends into the molding cavity, and the product is ejected out towards the mold opening direction of the fixed mold group;

the fixed mold core comprises a fixed mold insert and a movable core; the movable core is arranged in the through hole of the fixed die insert and pushes out a product towards the die opening direction of the movable die set.

Further preferred is: the movable core is assembled on the fixed die set through a pulling needle.

Further preferred is: the section of the movable core is T-shaped, and two ends of the movable core are matched with the step surface of the through hole for limiting.

Further preferred is: the step surface is the upper side surface of the boss on the inner wall of the through hole, and the upper side surface is the side surface facing the fixed module.

Further preferred is: the movable core is provided with an embedding bulge, and the embedding bulge extends into the forming cavity.

Further preferred is: the movable die set and the fixed die set are connected through a die opening limiting block.

Further preferred is: and the core pulling mechanism is assembled on the fixed die assembly.

Further preferred is: the thimble is a straight thimble.

After the technical scheme is adopted, compared with the background art, the utility model, have following advantage:

the utility model discloses increase towards the ejection mechanism of movable mould composition to, the ejection mechanism in the module is moved in the cooperation, realizes that two-way product is ejecting, reaches the purpose of product drawing of patterns, utilizes two-way and ejecting operation in proper order to avoid the adhesion of product and shaping intracavity wall even, ensures the complete drawing of patterns of product, promotes product machining efficiency and reduces the processing cost.

Drawings

Fig. 1 is a schematic structural view of the bidirectional ejection mold according to the embodiment of the present invention;

fig. 2 is a schematic structural view of the bidirectional ejection mold in the embodiment of the present invention;

FIG. 3 is an enlarged view of the structure shown in FIG. 2 at A;

fig. 4 is a schematic structural diagram of the movable module in the embodiment of the present invention;

fig. 5 is a schematic structural diagram of the fixed module in the embodiment of the present invention;

fig. 6 is an exploded schematic view of the cover half insert in the embodiment of the present invention.

The reference numerals of the specification are as follows:

q, a product, 100, a movable mould group, 110, a bottom plate, 120, a thimble plate group, 130, a thimble, 140, a movable mould plate, 200, a fixed mould group, 210, a top plate, 220, a fixed plate, 230, a fixed mould plate, 321, a fixed mould insert, 322, a movable core, 322-1, a lug, 323, a through hole, 324, a step surface, 240, a core pulling mechanism, 241, a driving block, 242, a sliding block, 243 and a core pulling rod.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are all based on the orientation or position relationship shown in the drawings, and are only for convenience of description and simplification of the present invention, but do not indicate or imply that the device or element of the present invention must have a specific orientation, and thus, should not be construed as limiting the present invention.

Examples

As shown in fig. 1 and 2, a bidirectional ejection mold includes a movable mold unit 100, a fixed mold unit 200, and a mold core 300.

As shown in fig. 1, 2 and 3, the mold core 300 includes a movable mold core 310 and a fixed mold core 320 that are engaged with each other, molding grooves are provided on both the movable mold core 310 and the fixed mold core 320, the two molding grooves are engaged with each other to obtain a molding cavity, and the molding cavity is consistent with a product Q to be molded and processed and is used for a cavity for injection molding.

As shown in fig. 1, fig. 2 and fig. 4, the movable module 100 includes a bottom plate 110, a thimble plate group 120, thimbles 130 and a movable mold plate 140, the thimble plate group 120 and a square iron are assembled on the bottom plate 110, the thimbles 130 are assembled on the thimble plate group 120, the movable mold plate 140 is fixed on the square iron, an insert groove is formed on the movable mold plate 140, and a movable mold core 310 is assembled in the insert groove; the movable mold plate 140 and the movable mold core 310 are both provided with abdicating holes, and the abdicating holes of the movable mold plate 140 are communicated with the abdicating holes of the movable mold core 310, and the ejector pins 130 are allowed to penetrate through.

It should be noted that: the ejector pins 130 are straight ejector pins, that is, after the movable mold assembly 100 is moved to open the mold, the ejector pin group 120 drives the ejector pins 130, and then drives the ejector pins 130 to perform ejection displacement.

As shown in fig. 1, 2 and 5, the fixed mold 200 includes a top plate 210, a fixed plate 220, a fixed mold plate 230, a mold opening stopper (not shown) and a core-pulling mechanism 240. The top plate 210, the fixing plate 220 and the fixed mold plate 230 are sequentially stacked and connected, and the top plate 210 is provided with a glue injection nozzle; the fixed die plate 230 is provided with a caulking groove, and the fixed die core 320 is assembled in the caulking groove.

As shown in fig. 1, 2, 3 and 6, the fixed mold core 320 includes a fixed mold block 321 and a movable core 322, and the movable core 322 is disposed in a through hole 323 formed in the fixed mold block 321. Specifically, the method comprises the following steps: the fixed die insert 321 is embedded in an embedding groove of the fixed die plate 230, a through hole 323 is formed in the fixed die insert 321, the through hole 323 is communicated along the die opening direction, a step boss is arranged on the side wall of the through hole 323 towards the center direction, the step face 324 of the step boss faces towards the top plate 210, and the movable core 322 is a movable body and is assembled in the through hole 323.

It should be noted that: as shown in fig. 1, 2, 3 and 6, the movable core 322 is a block with a T-shaped cross section, and has a protrusion 322-1 at both ends, and a needle hole is opened therein, and a material pulling needle is assembled in the needle hole, and the material pulling needle sequentially passes through the top plate 210, the fixing plate 220 and the fixed mold plate 230 and is inserted into the needle hole on the movable core 322. A gap exists between the movable core 322 and the fixed die insert 321 of the fixed die set 200, and the gap enables the movable core 322 to be driven by an injection molded product Q to move along the die opening direction of the movable die set 100, so that the ejection of the product Q is realized; in the ejection movement process of the movable core 322, the lugs 322-1 at the two ends of the movable core 322 are abutted against the step surface 324 of the step boss, so that the movable limitation of the movable core 322 is realized. The displacement stroke of the movable core 322 is 5mm.

It should be noted that: in order to realize the positioning displacement of the movable core 322, the material pulling needle is provided with a movable gap at the top plate 210 so as to meet the ejection function and the ejection stroke of the movable core 322.

As shown in fig. 1 to 6, the movable core 322 has an embedding protrusion, the embedding protrusion extends into the molding cavity, and then after the product Q is molded, the embedding protrusion is embedded in a hole or a groove corresponding to the product Q, so that the product Q is used to drive the movable core 322 to perform ejection displacement motion, and the step surface 324 in the through hole 323 of the fixed die insert 321 is matched with the movable core 322 to perform pressing and limiting, so that the movable core 322 and the product Q are ejected and demolded, and the purpose of completely demolding the product Q is achieved.

As shown in fig. 1 to 6, the mold opening limiting block is arranged between the fixed plate 220 of the fixed mold unit 200 and the movable mold plate 140 of the movable mold unit 100, and the mold opening limiting block is a bar-shaped block and is arranged along the mold opening direction; specifically, the method comprises the following steps: one end of the die opening limiting plate is a fixed end, and a limiting sliding groove is formed in the die opening direction; the fixed end has been seted up the fixed orifices, wears to establish the screw in the fixed orifices and is connected and fixed with fixed plate 220, install the slide bar on the movable mould board 140, the slide bar passes spacing spout to by die sinking action drive edge spacing spout direction carries out the displacement of sliding, realizes then that the die sinking is spacing.

As shown in fig. 1 to 6, the core-pulling mechanism 240 includes a driving block 241, a sliding block 242, and a core-pulling rod 243, the driving block 241 has a driving inclined surface and is connected to the sliding block 242, the core-pulling rod 253 is connected to and linked with the sliding block, and the driving block 241 drives the sliding block 242 to perform core-pulling movement in a direction away from the molding cavity.

It should be noted that: the number of the molding cavities can be multiple and distributed at intervals, and the number and the position of the movable cores 322 are matched with the number of the molding cavities.

With reference to fig. 1 to 6, the specific product Q of the bidirectional ejection mold is demolded as follows:

the movable die set 100 moves towards the direction far away from the fixed die set 200, so that the movable die set 100 is separated from the fixed die set 200 (the separation distance between the movable die set 100 and the fixed die set 200 is limited by the die opening limiting block), and at the moment, the driving block in the core pulling mechanism drives the sliding block to perform core pulling movement towards the direction far away from the forming cavity;

the ejector pins 130 are driven by the ejector pin plate group 120 to separate a product Q from a forming groove of the driven mold core 310, and the product Q is ejected and demolded for the first time;

in the mold opening process, the movable core 322 is driven by the product Q to eject and displace towards the movable mold set 100, so that the product Q is completely released from the molding groove of the fixed mold core 320, and at the moment, the product Q realizes the ejection and demolding for the second time, thereby achieving the purpose of completely demolding the product Q.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. Two-way ejecting mould, its characterized in that: it includes moves module, decides module and mold core, wherein:

the fixed mold core comprises a fixed mold insert and a movable core; the movable core is arranged in the through hole of the fixed die insert and ejects a product in the die opening direction of the movable die set.

2. The bi-directional ejection die of claim 1, wherein: the movable core is assembled on the fixed die set through a pulling needle.

3. The bi-directional ejection die of claim 1, wherein: the section of the movable core is T-shaped, and two ends of the movable core are matched with the step surface of the through hole for limiting.

4. The bi-directional ejection die of claim 3, wherein: the step surface is the upper side surface of a boss on the inner wall of the through hole, and the upper side surface is the side surface facing the fixed module.

5. The bi-directional ejection die of claim 1, wherein: the movable core is provided with an embedding bulge, and the embedding bulge extends into the forming cavity.

6. The bi-directional ejection die of claim 1, wherein: the movable die set and the fixed die set are connected through a die opening limiting block.

7. The bidirectional ejection mold according to claim 1 or 6, characterized in that: and the fixed die assembly is provided with a core pulling mechanism.

8. The bi-directional ejection die of claim 1, wherein: the thimble is a straight thimble.