CN216267185U

CN216267185U - Convenient-to-strip hot-pressing mold

Info

Publication number: CN216267185U
Application number: CN202122687162.5U
Authority: CN
Inventors: 付铁将
Original assignee: Suzhou Lida Precision Parts Co ltd
Current assignee: Suzhou Lida Precision Parts Co ltd
Priority date: 2021-11-04
Filing date: 2021-11-04
Publication date: 2022-04-12
Anticipated expiration: 2031-11-04

Abstract

The utility model relates to a hot-pressing mould convenient for demoulding, which comprises: the ejection mechanism comprises a bottom plate, a supporting plate fixed at the top of the bottom plate, an ejection plate arranged at the top of the bottom plate, ejection lugs fixed at two sides of the ejection plate at intervals, a lower template fixed at the top of the supporting plate, at least one second cavity arranged at the top of the lower template, a movable core arranged in the second cavity, an upper template arranged at the top of the lower template, a first cavity arranged at the bottom of the upper template and used by matching the second cavity with the movable core, and at least one reset spring and at least one ejector rod fixed at the top of the ejection plate; the other end of the return spring is abutted against the bottom of the lower template, and the other end of the ejector rod penetrates through the lower template and is connected to the movable core; the hot-pressing die convenient to demould is simple in structure, convenient to demould, high in demoulding efficiency, cost-saving, free of damage to the surface of a product and capable of improving the yield of the product.

Description

Convenient-to-strip hot-pressing mold

Technical Field

The utility model belongs to the technical field of molds, and particularly relates to a hot-pressing mold convenient to demold.

Background

In the prior art, after hot stamping of a molded product is completed, two demolding modes are provided, one mode is manual demolding, and the other mode is demolding realized by utilizing a machine ejection mechanism.

Although manual operation cannot damage the surface of a product, the demolding efficiency is low, subsequent normal processing is influenced, and the cost is wasted; although the efficiency of the existing machine ejection mechanism is improved, compared with the manual work, the cost is saved, the ejector rod directly pushes against a formed product, the surface of the product can be scratched, and the reject ratio of the product is indirectly improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide a hot-pressing die convenient to release.

In order to achieve the purpose, the utility model adopts the technical scheme that: a hot-pressing mold convenient to be released comprises:

the ejection mechanism comprises a bottom plate, a supporting plate fixed at the top of the bottom plate, an ejection plate arranged at the top of the bottom plate, ejection lugs fixed at two sides of the ejection plate at intervals, a lower template fixed at the top of the supporting plate, at least one second cavity arranged at the top of the lower template, a movable core arranged in the second cavity, an upper template arranged at the top of the lower template, a first cavity arranged at the bottom of the upper template and used by matching the second cavity with the movable core, and at least one reset spring and at least one ejector rod fixed at the top of the ejection plate;

the other end of the return spring abuts against the bottom of the lower template, and the other end of the ejector rod penetrates through the lower template and is connected to the movable core.

Optimally, the ejector plate further comprises a limiting groove arranged on the ejector plate, a limiting plate fixed on the bottom plate and penetrating through the limiting groove, at least one first limiting hole and at least one ejector rod fixing hole arranged at the top of the ejector plate, and at least one second limiting hole arranged at the bottom of the lower template.

Optimally, one end of the reset spring is arranged in the first limiting hole, the other end of the reset spring is arranged in the second limiting hole, and the ejector rod is fixed in the ejector rod fixing hole.

Optimally, the supporting plate and the limiting plate are the same in height.

Preferably, the ejecting lugs are perpendicular to the supporting plate, and the distance between the ejecting lugs is not less than the length of the supporting plate.

Optimally, the number of the first cavities, the second cavities and the movable cores is the same.

Optimally, the ejector rods and the ejector rod fixing holes are the same in number, and the reset springs, the first limiting holes and the second limiting holes are the same in number.

Preferably, the material of the return spring is 304 stainless steel.

Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

the demoulding-convenient hot-pressing mould has a simple structure, the plastic product is punched by matching the upper template and the lower template, and the ejector rod on the ejector plate can directly eject the movable core after the punching is finished, so that the formed product is ejected out, the demoulding is convenient, the demoulding efficiency is high, and the cost is saved; the reset spring ensures the timely reset of the ejector plate, and the ejector rod is not directly ejected on a formed product, so that the surface of the product is not damaged, and the yield of the product is improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a partial schematic view of the present invention;

FIG. 3 is a schematic structural diagram of the upper plate according to the present invention;

FIG. 4 is a schematic structural view of the lower template of the present invention;

FIG. 5 is a schematic structural view of the lower template of the present invention at another angle;

FIG. 6 is a schematic view of the ejector plate of the present invention;

FIG. 7 is a schematic structural diagram of a base plate according to the present invention;

description of reference numerals:

1. mounting a template; 2. a lower template; 3. ejecting the plate; 4. a base plate; 5. ejecting the lug; 6. a limiting groove; 7. a limiting plate; 8. a first limit hole; 9. a return spring; 10. a second limiting hole; 11. a support plate; 12. a first cavity; 13. a second cavity; 14. a movable core; 15. a top rod; 16. and a mandril fixing hole.

Detailed Description

The utility model will be further described with reference to examples of embodiments shown in the drawings to which the utility model is attached.

As shown in fig. 1 and 2, which are schematic structural diagrams of the present invention, it is generally used in the field of hot stamping, and it includes an upper mold plate 1, a lower mold plate 2, an ejector plate 3, a bottom plate 4, an ejector lug 5, a limiting groove 6, a limiting plate 7, a first limiting hole 8, a return spring 9, a second limiting hole 10, a supporting plate 11, a first cavity 12, a second cavity 13, a movable core 14, an ejector rod 15, and an ejector rod fixing hole 16.

As shown in fig. 7, the structural diagram of the bottom plate 4 is shown, and the bottom plate 4 is a rectangular metal plate and is usually fixed on an injection molding machine (the bottom plate 4 is fixed by a screw fastening method, and the bottom plate 4 mainly plays a supporting role). The support plate 11 has two blocks, and they interval is fixed at the top of bottom plate 4 (the support plate 11 interval is fixed in the both sides at the top of bottom plate 4, realizes fixing through the mode of screw fastening). The ejector plate 3 is arranged on the top of the bottom plate 4, two ejector lugs 5 are arranged and fixed on two sides of the top of the ejector plate 3 at intervals (the height of the ejector plate 3 is smaller than the thickness of the support plate 11, the ejector lugs 5 are fixed on the ejector plate 3 in a screw fastening mode, the ejector lugs 5 are perpendicular to the support plate 11, the distance between the two ejector lugs 5 is not smaller than the length of the support plate 11, in the actual machining process, an external machine can lift the ejector lugs 5 so as to lift the ejector plate 3, and the position relation between the ejector lugs 5 and the support plate 11 is shown in figure 2). As shown in FIG. 6, which is a schematic structural diagram of the ejector plate 3, the limiting grooves 6 are equidistantly formed in the ejector plate 3, the limiting plates 7 are fixed on the bottom plate 4 and penetrate through the limiting grooves 6 (the limiting grooves 6 are rectangular grooves, the limiting plates 7 are rectangular plates, and the number of the limiting plates 7 is the same as that of the limiting grooves 6; in this embodiment, the height of the limiting plates 7 is equal to that of the supporting plates 11, and the limiting plates 7 and the limiting grooves 6 can ensure that the positions of the ejector plate 3 are not shifted in the process of lifting the ejector plate 3).

The lower template 2 is fixed at the top of the supporting plate 11 (the lower template 2 is fixed by a screw fastening mode), as shown in fig. 4 and 5, for the structural schematic diagram of the lower template 2, at least one second cavity 13 is provided at the top of the lower template 2, and the movable core 14 is arranged in the second cavity 13 (the number of the movable cores 14 is the same as that of the second cavities 13). The upper template 1 is arranged at the top of the lower template 2 (as shown in fig. 3, the structural schematic diagram of the upper template 1 is shown), at least one first cavity 12 is arranged at the bottom of the upper template 1, and the number of the first cavities 12 is equal to the number of the second cavities 13 (in the actual processing process, rubber CR (chloroprene rubber) is placed in the second cavities 13 of the lower template 2, then the machine drives the upper template 1 to descend, and rubber at the top of the lower template 2 is extruded between the second cavities 13 and the movable cores 14 for forming, in the embodiment, the shapes of the first cavities 12, the second cavities 13 and the movable cores 14 are not fixed and can be changed according to the actual shape of a product).

At least one first limiting hole 8 is formed in the top of the ejector plate 3, at least one second limiting hole 10 is formed in the bottom of the lower template 2, and the number of the first limiting holes 8 is equal to that of the second limiting holes 10. At least one reset spring 9 is arranged, one end of each reset spring 9 is arranged in the first limiting hole 8, the other end of each reset spring is arranged in the second limiting hole 10 (the number of the reset springs 9 is equal to that of the first limiting holes 8, the reset springs 9 are made of 304 stainless steel, and the 304 stainless steel has the characteristics of good processing performance and high toughness; and in the process of lifting the ejection plate 3, the distance between the ejection plate 3 and the lower die plate 2 is smaller and smaller, so that the reset springs 9 are in a compressed state). At least one ejector rod fixing hole 16 is arranged at the top of the ejector plate 3, at least one ejector rod 15 is arranged, one end of each ejector rod is fixed on the ejector rod fixing hole 16, the other end of each ejector rod 15 penetrates through the lower die plate 2 and is connected to the movable core 14 (the number of the ejector rods 15 is equal to that of the ejector rod fixing holes 16; after die casting is completed, the upper die plate 1 is opened, the reset spring 9 is compressed in the process that the ejector plate 3 is lifted, the ejector rods 15 synchronously lift along with the ejector plate 3, the lifting ejector rods 15 lift the movable core 14, plastic products formed on the periphery of the movable core 14 are synchronously lifted, and demolding is facilitated).

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a be convenient for drawing of patterns formula hot pressing mould which characterized in that, it includes:

the device comprises a bottom plate (4), a supporting plate (11) fixed to the top of the bottom plate (4), an ejector plate (3) arranged at the top of the bottom plate (4), ejector lugs (5) fixed to two sides of the ejector plate (3) at intervals, a lower template (2) fixed to the top of the supporting plate (11), at least one second cavity (13) formed in the top of the lower template (2), a movable core (14) arranged in the second cavity (13), an upper template (1) arranged at the top of the lower template (2), a first cavity (12) formed in the bottom of the upper template (1) and used by matching the second cavity (13) with the movable core (14), and at least one return spring (9) and at least one ejector rod (15) fixed to the top of the ejector plate (3);

the other end of the return spring (9) abuts against the bottom of the lower template (2), and the other end of the ejector rod (15) penetrates through the lower template (2) and is connected to the movable core (14).

2. A hot-press mold for facilitating demolding as claimed in claim 1, wherein: it is still including seting up spacing groove (6) on liftout plate (3), fixing just pass on bottom plate (4) limiting plate (7), the seting up of spacing groove (6) at least one first spacing hole (8) and at least one ejector pin fixed orifices (16) and seting up at the liftout plate (3) top at least one second spacing hole (10) of lower bolster (2) bottom.

3. A hot-press mold for facilitating demolding as claimed in claim 2, wherein: one end of the reset spring (9) is arranged in the first limiting hole (8), the other end of the reset spring is arranged in the second limiting hole (10), and the ejector rod (15) is fixed in the ejector rod fixing hole (16).

4. A hot-press mold for facilitating demolding as claimed in claim 2, wherein: the supporting plate (11) and the limiting plate (7) are the same in height.

5. A hot-press mold for facilitating demolding as claimed in claim 1, wherein: the ejecting lugs (5) are perpendicular to the supporting plate (11), and the distance between the ejecting lugs (5) is not less than the length of the supporting plate (11).

6. A hot-press mold for facilitating demolding as claimed in claim 1, wherein: the number of the first cavities (12), the number of the second cavities (13) and the number of the movable cores (14) are the same.

7. A hot-press mold for facilitating demolding as claimed in claim 2, wherein: the number of the ejector rods (15) is the same as that of the ejector rod fixing holes (16), and the number of the return springs (9), the first limiting holes (8) is the same as that of the second limiting holes (10).

8. A hot-press mold for facilitating demolding as claimed in claim 1, wherein: the material of the return spring (9) is 304 stainless steel.