CN211389917U - Demolding mechanism and mold applying same - Google Patents

Abstract

The utility model discloses a demolding mechanism and a mold using the same, the demolding mechanism comprises a mold body and an ejection structure, the mold body comprises a fixed mold, a movable mold, a mold opening slider and a driving piece, a mold cavity for molding an injection molding piece is formed among the fixed mold, the movable mold and the mold opening slider, the movable mold can move up and down relative to the fixed mold, and a guide inclined plane matched with the mold opening slider is arranged on the fixed mold; the ejection structure penetrates through the die sinking slide block, the middle part of the guide inclined plane is provided with a limiting groove, and one end of the ejection structure is matched with the limiting groove so that the end surface of the other end of the ejection structure is flush with the front side of the die sinking slide block facing the injection molding piece; the mould opening slider passes through the driving piece and removes to the injection molding dorsad, and the other end of ejecting structure can withstand the injection molding when mould opening slider and injection molding break away from the contact to make the injection molding can the demolding, prevent that the injection molding fracture deformation from appearing or draw white, improve the qualification rate of product, can the demolding smoothly.

Description

Demolding mechanism and mold applying same

Technical Field

The utility model relates to a new energy automobile technical field, in particular to a mould that is used for demolding mechanism and applied this demolding mechanism of new energy automobile insulating layer.

Background

At present, in injection molding parts of new energy automobile insulating layer products in the market, because the side ribs of the injection molding parts are screw columns or have complex shapes, the injection molding parts and molds after injection molding through an injection molding machine have very large mold sticking force. When the mold opening part of the traditional mold is separated from the injection molding part, the mold sticking force is very large, and the injection molding part is stuck with the mold opening surface of the mold opening part, so that the injection molding part is broken and deformed or whitened, the product yield is low, and the problems of low mold stripping efficiency or incapability of smoothly stripping the mold exist.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve one of the technical problem that exists among the prior art at least, provide a demolding mechanism, demolding mechanism prevents that the injection molding fracture deformation from improving, improves the product percent of pass for the injection molding can be demolding smoothly.

The utility model discloses still provide an use the mould of foretell demolding mechanism.

According to the utility model discloses demolding mechanism of first aspect embodiment, include: the injection molding die comprises a die body, wherein the die body comprises a fixed die, a movable die, a die opening slide block and a driving piece, a die cavity for molding an injection molding piece is formed among the fixed die, the movable die and the die opening slide block, the movable die can move up and down relative to the fixed die, and a guide inclined plane matched with the die opening slide block is arranged on the fixed die; the ejection structure penetrates through the die opening slide block and can move relative to the die opening slide block, a limiting groove is formed in the middle of the guide inclined plane, and one end of the ejection structure is matched with the limiting groove so that the end face of the other end of the ejection structure is flush with the front side, facing the injection molding piece, of the die opening slide block; the mold opening sliding block moves back to the injection molding part through the driving part, and the other end of the ejection structure can eject the injection molding part when the mold opening sliding block is separated from the injection molding part.

According to the utility model discloses demolding structure has following technological effect at least: adopt above-mentioned structure, the movable mould dorsad when the cover half removes, the die sinking slider removes along the direction inclined plane of cover half, the head and the spacing groove of ejecting structure break away from contact and butt on the lower part on direction inclined plane, then the die sinking slider is when removing through second drive structure injection molding dorsad, ejecting structure reverse movement, make on the pole portion can withstand the injection molding, so that the die sinking slider can break away from the contact with the injection molding, prevent that fracture deformation or whitening from appearing in the injection molding, improve the qualification rate of product, can go out the mould smoothly.

According to some embodiments of the utility model, ejecting structure includes to wear to locate ejector pin in the die sinking slider with set up in the die sinking slider with can drive between the ejector pin the first elastic component that the ejector pin resets, the thimble of being convenient for is through first elastic component and die sinking slider cooperation to the die sinking slider breaks away from the contact with the injection molding.

According to some embodiments of the utility model, first elastic component is first compression spring, first compression spring cover is located on the ejector pin and the butt in on the die sinking slider, provide the elastic force that makes the ejector pin reset, and convenient assembling.

According to some embodiments of the utility model, still include first limit structure, first limit structure including set up in first recess on the ejector pin with set up in on the die sinking slider and with first recess sliding connection's setting element. The first limiting structure is arranged, when the positioning piece is abutted to the first groove, the movement of the ejection structure is limited, and the ejection structure is prevented from being separated from the die sinking sliding block.

According to the utility model discloses a some embodiments still include second limit structure, second limit structure is including offering in second recess on the die sinking slider with set up in on the movable mould and with second recess matched with glass pearl screw. The second limiting structure is arranged, and when the glass bead screw abuts against the second groove, the moving stroke of the die opening slide block is limited.

According to the utility model discloses a some embodiments still include third limit structure, third limit structure set up in on the movable mould and be located with the rear side of die sinking slider, further restriction the removal stroke of die sinking slider.

According to the utility model discloses a some embodiments, the driving piece for set up in the die sinking slider with second elastic component between the movable mould can drive the die sinking slider and remove to the injection molding dorsad.

According to the utility model discloses a some embodiments, the second elastic component is second compression spring, be provided with the guide post on the movable mould, have on the die sinking slider with the guide post corresponds the third recess that sets up, second compression spring cover is located on the guide post and the butt in on the third recess. Be provided with guide post and third recess, play the guide effect to the removal of second compression spring drive die sinking slider, convenient assembling, the transmission is reliable.

According to the utility model discloses mould of second aspect embodiment, include according to the utility model discloses the demolding mechanism of above-mentioned first aspect embodiment.

According to the utility model discloses mould has following beneficial effect at least: be provided with this demolding mechanism on the mould, the movable mould dorsad when the cover half moves, the die sinking slider removes along the direction inclined plane of cover half, the head and the spacing groove of ejecting structure break away from contact and butt on the lower part on direction inclined plane, then the die sinking slider is when removing through second drive structure injection molding dorsad, ejecting structure reverse movement, make on the pole portion can withstand the injection molding, so that die sinking slider and injection molding can break away from the contact, prevent that the injection molding from appearing fracture deformation or drawing white, improve the qualification rate of product, can demolding smoothly.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural view of a mold stripping mechanism according to an embodiment of the present invention;

fig. 2 is a schematic view of the state that the mold opening slide block is separated from contact with the injection molding piece.

Reference numerals:

an injection molded part 10;

the die comprises a die body 20, a fixed die 21, a guide inclined surface 211 and a limiting groove 2111;

the movable die 22, the guide post 221, the die sinking slide block 23, the third groove 231 and the driving piece 24;

the ejection structure 30, the ejector rod 31, the head 311, the rod 312 and the first elastic element 32;

a first limiting structure 40, a first groove 41 and a positioning piece 42;

a second limiting structure 50, a second groove 51 and a bead screw 52;

and a third stop structure 60.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in fig. 1, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, if a plurality of, more than, less than, more than, etc. appear, a plurality of means are one or a plurality of, a plurality of means are two or more, more than, less than, more than, etc. are understood as not including the number, and more than, less than, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the present invention, unless otherwise explicitly defined, the terms "set," "mounted," "connected," and the like are to be understood in a broad sense, and may be directly connected or indirectly connected through an intermediate medium, for example; can be fixedly connected, can also be detachably connected and can also be integrally formed; may be a mechanical connection; either as communication within the two elements or as an interactive relationship of the two elements. The technical skill in the art can reasonably determine the specific meaning of the above words in the present invention by combining the specific contents of the technical solution.

Referring to fig. 1, according to the mold stripping mechanism of the embodiment of the present invention, the mold body 20 includes a fixed mold 21, a movable mold 22, a mold opening slider 23 and a driving member 24, a mold cavity for molding the injection molding 10 is formed between the fixed mold 21, the movable mold 22 and the mold opening slider 23, the movable mold 22 can move up and down relative to the fixed mold 21 through an injection molding machine (not shown in the figure), and a guide inclined plane 211 matched with the mold opening slider 23 is provided on the fixed mold 21; the ejection structure 30 is arranged on the mold opening slider 23 in a penetrating manner and can move relative to the mold opening slider 23, the middle part of the guide inclined plane 211 is provided with a limiting groove 2111, and one end of the ejection structure 30 is matched with the limiting groove 2111 so that the end surface of the other end of the ejection structure 30 is flush with the front side of the mold opening slider 23 facing the injection molding piece 10; the mold opening slide block 23 moves back to the injection molding part 10 through the driving part 24, and the other end of the ejection structure 30 can eject the injection molding part 10 when the mold opening slide block 23 is separated from contact with the injection molding part 10.

According to the utility model discloses a demolding structure, adopt above-mentioned structure, when movable mould 22 removed cover half 21 dorsad, die sinking slider 23 removed along cover half 21's direction inclined plane 211, head 311 and spacing groove 2111 of ejecting structure 30 break away from contact and butt on the lower part of direction inclined plane 211, die sinking slider 23 is when removing through second drive structure injection molding 10 dorsad then, ejecting structure 30 reverse movement, make pole portion 312 can withstand on the injection molding 10, so that die sinking slider 23 can break away from the contact with injection molding 10, prevent that fracture deformation or whitening from appearing in injection molding 10, improve the qualification rate of product, can go out the mould smoothly.

Referring to fig. 1 and 2, in the embodiment of the present invention, the ejecting structure 30 includes a top rod 31 penetrating through the mold opening slider 23 and a first elastic element 32 disposed between the mold opening slider 23 and the top rod 31 and capable of driving the top rod 31 to reset, so that the top rod is matched with the mold opening slider 23 through the first elastic element 32, so that the mold opening slider 23 is separated from the injection molding 10. In some embodiments, the first elastic element 32 is a first compression spring, and the first compression spring is sleeved on the top rod 31 and abuts against the mold opening slider 23, so as to provide an elastic force for resetting the top rod 31, and the assembly is convenient. Of course, the first elastic element 32 may be a C-shaped spring plate.

It can be understood that the top rod 31 comprises a head portion 311 and a rod portion 312, when the head portion 311 of the top rod 31 is pressed by the guide inclined surface 211, the moving direction of the top rod 31 is opposite to the moving direction of the mold opening slider 23, at this time, when the first elastic member 32 is in a compressed state, and the end portion of the rod portion 312 extends to the outside of the front side of the mold opening slider 23, and then can be pressed against the injection molded part 10; when the head 311 of the ejector rod 31 is located in the limiting groove 2111 or is no longer pressed by the guide inclined surface 211, at this time, the first elastic element 32 is reset, and the end surface of the rod part 312 is flush with the front side of the mold opening slider 23.

Referring to fig. 1 and 2, the mold opening device further includes a first limiting structure 40, where the first limiting structure 40 includes a first groove 41 formed on the top rod 31 and a positioning element 42 disposed on the mold opening slider 23 and slidably connected to the first groove 41. The first limiting structure 40 is disposed, and when the positioning element 42 abuts against the first groove 41, the movement of the ejecting structure 30 is limited, and the ejecting structure 30 is prevented from being separated from the mold opening slider 23.

Referring to the drawings, in the embodiment of the present invention, the second limiting structure 50 further includes a second groove 51 opened on the mold opening slider 23, and a bead screw 52 disposed on the movable mold 22 and engaged with the second groove 51. The second limit structure 50 is provided, and when the bead screw 52 abuts against the second groove 51, the moving stroke of the mold opening slider 23 is limited.

The embodiment of the present invention provides an embodiment of the present invention, further including a third limiting structure 60, where the third limiting structure 60 is disposed on the movable mold 22 and located at the rear side of the mold opening slider 23, so as to further limit the moving stroke of the mold opening slider 23.

It should be noted that the positioning element 42 and the third limiting structure 60 may be configured as a screw, a pin, etc.; in some embodiments, the third position-limiting structure 60 can also be a bump formed on the movable mold 22.

Referring to fig. 1 and 2, in the embodiment of the present invention, the driving member 24 is a second elastic member disposed between the mold opening slider 23 and the movable mold 22, and can drive the mold opening slider 23 to move away from the injection molding member 10. The second elastic element is a second compression spring, the movable die 22 is provided with a guide post 221, the die opening slider 23 is provided with a third groove 231 corresponding to the guide post 221, and the second compression spring is sleeved on the guide post 221 and abuts against the third groove 231. The guide post 221 and the third groove 231 are arranged to guide the movement of the second compression spring driving die opening slide block 23, and the die opening slide block is convenient to assemble and reliable in transmission. Of course, the second elastic member may also be configured as a C-shaped spring plate.

When a cavity for molding the injection molded article 10 is formed between the fixed mold 21, the movable mold 22, and the mold opening slider 23, the second elastic member is in a compressed state, and the guide column 221 may be provided as a pin, a screw, or the like.

According to the utility model discloses mould of second aspect embodiment, include according to the utility model discloses the demolding mechanism of above-mentioned first aspect embodiment.

According to the utility model discloses the mould, be provided with this demolding mechanism on the mould, movable mould 22 when cover half 21 removes dorsad, die sinking slider 23 removes along cover half 21's direction inclined plane 211, head 311 and spacing groove 2111 of ejecting structure 30 break away from contact and butt on the lower part of direction inclined plane 211, die sinking slider 23 is when removing through second drive structure injection molding 10 dorsad then, ejecting structure 30 reverse movement, make on pole portion 312 can withstand injection molding 10, so that die sinking slider 23 and injection molding 10 can break away from the contact, prevent that fracture deformation or whitening from appearing in injection molding 10, improve the qualification rate of product, can go out the mould smoothly.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (9)

1. An ejection mechanism for cooperation with an injection molded part (10), comprising:

the injection molding die comprises a die body (20), wherein the die body (20) comprises a fixed die (21), a movable die (22), a die opening slider (23) and a driving piece (24), a die cavity for molding an injection molding piece (10) is formed among the fixed die (21), the movable die (22) and the die opening slider (23), the movable die (22) can move up and down relative to the fixed die (21), and a guide inclined plane (211) matched with the die opening slider (23) is arranged on the fixed die (21);

the ejection structure (30) penetrates through the die opening sliding block (23) and can move relative to the die opening sliding block (23), a limiting groove (2111) is formed in the middle of the guide inclined plane (211), and one end of the ejection structure (30) is matched with the limiting groove (2111) so that the end face of the other end of the ejection structure (30) is flush with the front side, facing the injection molding piece (10), of the die opening sliding block (23);

the mold opening sliding block (23) moves back to the injection molding part (10) through the driving part (24), and the other end of the ejection structure (30) can eject the injection molding part (10) when the mold opening sliding block (23) is separated from the injection molding part (10).

2. The demolding mechanism as claimed in claim 1, wherein: the ejection structure (30) comprises an ejector rod (31) arranged in the die sinking slide block (23) in a penetrating mode and a first elastic piece (32) arranged between the die sinking slide block (23) and the ejector rod (31) and capable of driving the ejector rod (31) to reset.

3. The demolding mechanism as claimed in claim 2, wherein: the first elastic piece (32) is a first compression spring, and the first compression spring is sleeved on the ejector rod (31) and abuts against the die opening sliding block (23).

4. The demolding mechanism as claimed in claim 3, wherein: still include first limit structure (40), first limit structure (40) including set up in first recess (41) on ejector pin (31) with set up in on die sinking slider (23) and with first recess (41) sliding connection's setting element (42).

5. The demolding mechanism as claimed in claim 1, wherein: the mould opening device is characterized by further comprising a second limiting structure (50), wherein the second limiting structure (50) comprises a second groove (51) formed in the mould opening sliding block (23) and a glass bead screw (52) arranged on the moving mould (22) and matched with the second groove (51).

6. The demolding mechanism as claimed in claim 1, wherein: the mould opening mechanism is characterized by further comprising a third limiting structure (60), wherein the third limiting structure (60) is arranged on the movable mould (22) and is positioned at the rear side of the mould opening sliding block (23).

7. The demolding mechanism as claimed in claim 1, wherein: the driving piece (24) is a second elastic piece arranged between the die sinking sliding block (23) and the moving die (22).

8. The demolding mechanism of claim 7, wherein: the second elastic part is a second compression spring, a guide post (221) is arranged on the movable die (22), a third groove (231) which corresponds to the guide post (221) is formed in the die opening sliding block (23), and the second compression spring is sleeved on the guide post (221) and abuts against the third groove (231).

9. A mold comprising the ejection mechanism of any one of claims 1 to 8.

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