CN216506548U

CN216506548U - Secondary ejection mold

Info

Publication number: CN216506548U
Application number: CN202121567690.0U
Authority: CN
Inventors: 何湾; 陈小豪
Original assignee: Xiamen Junzhongsheng New Material Co ltd
Current assignee: Xiamen Junzhongsheng New Material Co ltd
Priority date: 2021-07-09
Filing date: 2021-07-09
Publication date: 2022-05-13
Anticipated expiration: 2031-07-09

Abstract

The utility model discloses a secondary ejection die, which comprises: the first template comprises a first mold core, and a front mold elastic block is movably arranged on the first mold core; the second template comprises a second mold core, the second mold core is provided with an insert, and the second template is matched with the first template; the ejector pin plate structure is arranged at one end of the second template, when the ejector pin plate structure is pushed for the first time, the insert is driven to move with finished products in the second template and the first template, when the ejector pin plate structure is pushed for the second time, the insert is fixed, the finished products are ejected by the ejector pin plate structure, the front mold elastic block can eject three or more finished products at one time, different inserts and finished products are ejected through the same ejector pin plate structure in a secondary ejection mode, more injection molding cavities can be arranged in a limited space, and more finished products can be produced in a single processing.

Description

Secondary ejection mold

Technical Field

The utility model relates to a die, in particular to a secondary ejection die.

Background

Injection molding, also known as injection molding, is a method of molding by injection and molding. The injection molding method has the advantages of high production speed, high efficiency, automation of operation, various colors, various shapes from simple to complex, small sizes, accurate product size, easy replacement of products, capability of forming products with complex shapes, and suitability for the molding processing fields of mass production, products with complex shapes and the like.

In the injection moulding process of three folding spoons, because the spoon body has certain degree of depth, and has multistage folding structure, so appear the drawing of patterns thoroughly easily when the drawing of patterns, the phenomenon of drawing of patterns difficulty, if only reduce mould benevolence drawing of patterns degree of difficulty through the space in the increase mould benevolence, then can lead to the reduction of the finished product manufacturing quantity in the single course of working, influence production efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model provides a secondary ejection die which can effectively solve the problems.

The utility model is realized by the following steps:

a double ejection die comprising:

the first template comprises a first mold core, and a front mold elastic block is movably arranged on the first mold core;

the second template comprises a second mold core, the second mold core is provided with an insert, and the second template is matched with the first template;

and the ejector pin plate structure is arranged at one end of the second template, when the ejector pin plate structure is pushed for the first time, the insert is driven to move with the second template and the finished product in the first template, when the ejector pin plate structure is pushed for the second time, the insert is fixed, and the finished product is ejected by the ejector pin plate structure.

As a further improvement, the insert is provided with a matching hole, and the ejector plate structure comprises:

the first ejector plate is provided with a plurality of ejector columns which are pressed against the insert;

the second ejector plate is arranged on the first ejector plate and is connected with the first ejector plate through a connecting buckle;

the third ejector plate is arranged on the second ejector plate;

and the ejector pins are arranged on the third ejector plate or penetrate through the third ejector plate to be fixed on the second ejector plate and are inserted into the matching holes of the inserts.

As further improved, further include the support frame, the inboard of support frame is provided with one and steps down the space, the length of first thimble board is greater than second thimble board, third thimble board, works as thimble board structure promotes extremely when stepping down the space, first thimble board quilt the space of stepping down blocks, the second thimble board with third thimble board continues to promote.

As a further improvement, a chute for the sliding of the front module elastic block is arranged in the first module core, the front module elastic block is matched with the chute, and the front module elastic block comprises a module core block which slides on the chute, a spring column which is obliquely inserted on the module core block, and a pressing plate which is fixed on the spring column.

As a further improvement, the sliding distance of the front module elastic block is 5-15 mm.

As a further improvement, the second mold core is provided with a plurality of injection molding cavities, the injection molding cavities are provided with square holes, and the square holes are matched with the inserts.

As a further improvement, the first template is provided with a liquid inlet hole, the second template is provided with a runner corresponding to the liquid inlet hole, and the runner corresponds to the four injection molding cavities.

As further improved, further including setting up hot runner plate on the first template, be fixed with the panel on the hot runner plate, be provided with thermal-insulated cotton on the panel, the bottom of second template is the support frame in addition, two the inboard distribution of support frame has first thimble board, second thimble board, third thimble board, the bottom of support frame is fixed with the mounting panel.

As a further improvement, the outer surfaces of the hot runner plate and the second template are provided with locking modules.

The utility model has the beneficial effects that:

the utility model, through the front mould elastic block, before needing demoulding, make the front mould elastic block pop out from the first mould kernel, let the spoon body part of the three-fold spoon disengage the second mould kernel of the second template slightly, namely the projection position of the two is not on the same straight line, reduce the spoon body part of the three-fold spoon and possible friction that exists with the second mould kernel while disengaging, then through the way of the preliminary top-pushing, make the thimble structure advance preliminarily, after advancing, because the hindrance of other structures of the mould, make the lower half of the thimble plate structure block, make the insert be ejected a certain distance, and the thimble plate structure that advances again will pass the insert and push out the shank part of the finished product, make the finished product can be demolded completely through three steps, wherein, the front mould elastic block can pop out three or more finished products once, and different inserts and finished products are all pushed out through the way of the spoon shank part of the same thimble plate structure twice, more injection molding cavities can be arranged in a limited space, and more finished products can be produced in single processing.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a double-ejection die of the present invention.

Fig. 2 is a schematic structural diagram of a first template according to the present invention.

Fig. 3 is a schematic structural diagram of a second template according to the present invention.

Fig. 4 is a schematic structural view of an ejector plate structure of the present invention.

Fig. 5 is a schematic view of a front module spring block mounted on a first template according to the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Referring to fig. 1-5, a double ejection die includes: the first template 1 comprises a first mold core 11, and a front mold elastic block 12 is movably arranged on the first mold core 11; the second template 2 comprises a second mold core 21, the second mold core 21 is provided with an insert 22, and the second template 2 is matched with the first template 1; the thimble plate structure 3 is arranged at one end of the second template 2, when the thimble plate structure 3 is pushed for the first time, the insert 22 is driven to move with the second template 2 and a finished product (not shown in the figure) in the first template 1, when the thimble plate structure 3 is pushed for the second time, the insert 22 is fixed, the finished product is ejected by the thimble plate structure 3, and the first template 1 and the second template 2 are respectively provided with a positioning column and a positioning hole, so that the first template and the second template are conveniently connected and fixed.

Specifically, the insert 22 is provided with a fitting hole 221, and the ejector plate structure 3 includes: a first ejector plate 31 provided with a plurality of ejector pins 311 that press against the insert 22; a second ejector plate 32 provided on the first ejector plate 31 and connected to the first ejector plate 31 by a connector buckle (not shown in the figure); a third ejector plate 33 provided on the second ejector plate 32; and the ejector pins 34 are arranged on the third ejector plate 33 or penetrate through the third ejector plate 33 to be fixed on the second ejector plate 32, and are inserted into the matching holes 221 of the insert 22.

In order to achieve the effect of secondary pushing, the needle plate structure further comprises a support frame 7, an abdicating space 71 is arranged inside the support frame 7, the length of the first thimble plate 31 is greater than that of the second thimble plate 32 and the third thimble plate 33, when the thimble plate structure 3 is pushed to the abdicating space 71, the first thimble plate 31 is clamped by the abdicating space 71, the second thimble plate 32 and the third thimble plate 33 are pushed continuously, that is, the second thimble plate 32 and the third thimble plate 33 are driven, the first thimble plate 31 is driven by the connecting buckle to move, at this time, the ejector columns 311, the ejectors 34 and the inserts 22 are all actuated along with the movement of the first thimble plate 31, the second thimble plate 32 and the third thimble plate 33, and the first thimble plate 31 is stopped by the support frame 7 after moving to the abdicating space 71, and then the ejector columns 311 and the inserts 22 are also stopped, the second ejector plate 32 and the third ejector plate 33 are continuously pushed in, and the ejector pins 34 are continuously driven to eject out, so that the ejector pins 34 penetrate through the matching holes 221 and penetrate through the inserts 22 to eject out the spoon handle parts of the finished products, and if the front mold elastic blocks 12 are ejected at this time, the whole finished products are directly ejected and fall out, so that demolding is completed, wherein the second ejector plate 32 and the third ejector plate 33 can be driven by different driving structures, namely hydraulic pressure, electric power, air cylinders and the like.

In order to make the finished product easier to separate from the front mold, a chute 14 for the front mold elastic block 12 to slide is provided in the first mold core 11, the front mold elastic block 12 is adapted to the chute 14, the front mold elastic block 12 includes a mold core block 123 sliding on the chute 14, a spring post 122 obliquely inserted on the mold core block 123, and a pressing plate 121 fixed on the spring post 122, the pressing plate 121 is pressed, so that the pressing plate 121 pushes the spring post 122 to push the mold core block 123 to slide towards the direction of the second mold plate 2, and the finished product is preliminarily demolded.

Further, the sliding distance of the front module elastic block 12 is 5-15mm, preferably, the sliding distance of the front module elastic block 12 is 10mm, so that the spoon body part of the spoon can be just pushed out of the second mold core 21, the spoon body part cannot be blocked when being popped out, and the spoon body part cannot be pushed too much, and the phenomenon that the spoon handle part is dragged to cause demoulding failure is avoided.

Further, a plurality of injection molding cavities 24 are formed in the second mold core 21, square holes 241 are formed in the injection molding cavities 24, and the square holes 241 are matched with the inserts 22.

Furthermore, a liquid inlet hole 13 is formed in the first template 1, a flow channel 23 corresponding to the liquid inlet hole 13 is formed in the second template 2, and the flow channel 23 corresponds to the four injection molding cavities 24.

Further, further including setting up hot runner plate 6 on the first template 1, be fixed with panel 5 on the hot runner plate 6, be provided with thermal-insulated cotton 4 on the panel 5, the bottom of second template 2 is support frame 7 in addition, two the inboard distribution of support frame 7 has first thimble board 31, second thimble board 32, third thimble board 33, the bottom of support frame 7 is fixed with mounting panel 8.

Furthermore, the hot runner plate 6 and the outer surface of the second template 2 are provided with locking modules 9 which can be locked and fixed, so that the transportation and the carrying are convenient.

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. A double ejection die, comprising:

the first template (1) comprises a first mold core (11), and a front mold elastic block (12) is movably arranged on the first mold core (11);

the second template (2) comprises a second mold core (21), an insert (22) is arranged on the second mold core (21), and the second template (2) is matched with the first template (1);

the ejector pin plate structure (3) is arranged at one end of the second template (2), when the ejector pin plate structure (3) is pushed for the first time, the insert (22) is driven to move with finished products in the second template (2) and the first template (1), when the ejector pin plate structure (3) is pushed for the second time,

the insert (22) is fixed, the finished product is ejected by the ejector pin plate structure (3),

be provided with mating holes (221) on mold insert (22), ejector pin plate structure (3) includes:

the first ejector plate (31) is provided with a plurality of ejector columns (311) which are pressed against the insert (22);

the second ejector plate (32) is arranged on the first ejector plate (31) and is connected with the first ejector plate (31) through a connecting buckle;

a third ejector plate (33) provided on the second ejector plate (32);

and the ejector pins (34) are arranged on the third ejector plate (33) or penetrate through the third ejector plate (33) to be fixed on the second ejector plate (32), and are inserted into the matching holes (221) of the insert (22).

2. The secondary ejection die of claim 1, further comprising a support frame (7), wherein an abdicating space (71) is provided on the inner side of the support frame (7), the length of the first ejector plate (31) is greater than the second ejector plate (32) and the third ejector plate (33), when the ejector plate structure (3) is pushed to the abdicating space (71), the first ejector plate (31) is blocked by the abdicating space (71), and the second ejector plate (32) and the third ejector plate (33) are pushed continuously.

3. The secondary ejection die as claimed in claim 1, wherein a chute (14) for sliding the front die elastic block (12) is disposed in the first die core (11), the front die elastic block (12) is adapted to the chute (14), the front die elastic block (12) includes a die core block (123) sliding on the chute (14), a spring post (122) obliquely inserted on the die core block (123), and a pressing plate (121) fixed on the spring post (122).

4. A double ejection die as claimed in claim 3, wherein the sliding distance of the front die spring block (12) is 5-15 mm.

5. The double ejection mold according to claim 1, wherein the second mold core (21) is provided with a plurality of injection molding cavities (24), the injection molding cavities (24) are provided with square holes (241), and the square holes (241) are matched with the insert (22).

6. The double ejection mould as claimed in claim 5, characterised in that the first template (1) is provided with a liquid inlet (13), the second template (2) is provided with a flow channel (23) corresponding to the liquid inlet (13), and the flow channel (23) corresponds to the four injection moulding cavities (24).

7. The secondary ejection die as claimed in claim 1, further comprising a hot runner plate (6) arranged on the first die plate (1), wherein a face plate (5) is fixed on the hot runner plate (6), heat insulation cotton (4) is arranged on the face plate (5), a support frame (7) is further arranged at the bottom of the second die plate (2), a first ejector pin plate (31), a second ejector pin plate (32) and a third ejector pin plate (33) are distributed on the inner sides of the two support frames (7), and a mounting plate (8) is fixed at the bottom of the support frame (7).

8. A double ejection die according to claim 7, characterised in that the hot runner plate (6) and the second die plate (2) are provided with locking modules (9) on their outer surfaces.