CN218700884U

CN218700884U - Reduce mould of overlap

Info

Publication number: CN218700884U
Application number: CN202222956492.4U
Authority: CN
Inventors: 唐洪荣; 林琦; 王怀国; 韩同语; 赵敏杰
Original assignee: Qingdao Hairuide Mould & Plastic Co ltd
Current assignee: Qingdao Hairuide Mould & Plastic Co ltd
Priority date: 2022-11-07
Filing date: 2022-11-07
Publication date: 2023-03-24
Anticipated expiration: 2032-11-07

Abstract

The utility model provides a reduce mould of overlap, include: lower mould, die holder and product mold core main part, the lower mould is installed at the die holder upper surface, lower mould upside movable mounting has last mould, compares with prior art, the utility model discloses following beneficial effect has: first shaping catching groove, the cooperation of second shaping catching groove is prevented structure one and is prevented structure two that contracts, the structure of a similar back-off has been increased on the product mold core in other words, when the hard colloid of first chamber is when the shrink, because the structure one that contracts is prevented to direction of height and is prevented structure two back-offs at first shaping catching groove, in the second shaping catching groove, the pulling force of its production is greater than the shrink force of the hard colloid of first chamber on direction of height, make the lower extreme and first parting surface of the hard colloid of first chamber in the upset in-process, no clearance appears between the second parting surface, thereby solve the problem of product overlap, the production efficiency of shaping product has been improved greatly, reduce the cost of labor, satisfy product appearance quality requirement simultaneously.

Description

Reduce mould of overlap

Technical Field

The utility model belongs to the technical field of injection mold, in particular to reduce mould of overlap.

Background

In actual use, a mold needs to be opened and turned for 180 degrees to perform injection molding on soft rubber when the hard rubber material is injected, so that the first cavity hard rubber body is cooled (the temperature of the surface of the product is reduced in the air), the first cavity hard rubber body slightly shrinks to cause the size to be reduced (slight), and the first cavity hard rubber body shrinks relatively greatly in the height direction, so that when the second cavity soft rubber body is injected after the rotation, the first cavity hard rubber body shrinks and flashes in the height direction to cause the soft rubber to run into a gap;

at present, the mold has slight flash in the production process, because the soft rubber TPE is soft and cannot be repaired manually, the small flash of the soft rubber can be removed by stamping with an alcohol burner in the use process of the mold, so that the production efficiency of the product is low, the appearance quality is poor, and therefore, the mold for reducing the flash is designed to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a reduce mould of overlap, solve the problem of proposing among the above-mentioned background art not enough to prior art exists.

The utility model discloses a following technical scheme realizes: a flash reducing mold comprising: the lower die is mounted on the upper surface of the die holder, the upper die is movably mounted on the upper side of the lower die, the product die core main body is arranged on the front side and the rear side of the upper surface of the lower die, and a glue injection hole is formed in the left side of the die holder;

the left part and the right part of the lower side of the front surface of the product mold core main body are respectively recessed backwards to form a second forming buckle groove;

the middle part of the lower side of the front surface of the product mold core main body is recessed backwards to form a first forming buckle groove.

In a preferred embodiment, the width and depth of the first forming buckle groove are the same as those of the second forming buckle groove.

In a preferred embodiment, the length of the first forming buckle slot is greater than that of the second forming buckle slot.

As a preferred embodiment, the cross section of the first forming catching groove is a rectangular structure, the cross section of the second forming catching groove is a rectangular structure, the second forming catching groove is arranged at the front side and the rear side of the product mold core main body in a crossed manner, when in actual use, when a product is subjected to first hard colloid injection molding, part of the hard colloid converges in the first forming catching groove and the second forming catching groove, so that a first shrinkage prevention structure and a second shrinkage prevention structure are integrally formed on two sides of the inner wall of the first cavity hard colloid, the first shrinkage prevention structure and the second shrinkage prevention structure cooperate with the first forming catching groove and the second forming catching groove to generate a tensile force on the first cavity hard colloid, and the shrinkage amount of the first cavity hard colloid in the high direction is reduced.

As a preferred embodiment, a second parting surface is arranged at the joint of the lower side of the front end of the product mold core main body and the lower mold, and a first parting surface is arranged at the joint of the lower side of the rear end of the product mold core main body and the lower mold.

As a preferred embodiment, the lower surface of the upper die is provided with an upper die core matched with the product die core main body.

After the technical scheme is adopted, the beneficial effects of the utility model are that: the first forming buckle groove and the second forming buckle groove are formed in the product mold core main body, so that when the hard colloid is injected into a product for the first time, part of the hard colloid is converged and formed in the first forming buckle groove and the second forming buckle groove, and a first anti-shrinkage structure and a second anti-shrinkage structure are integrally formed on two sides of the inner wall of the hard colloid in the first cavity;

first shaping catching groove, the cooperation of second shaping catching groove is prevented structure one and is prevented structure two that contracts, the structure of a similar back-off has been increased on the product mold core in other words, when the hard colloid of first chamber is when contracting, because the structure one that contracts is prevented to the direction of height and is prevented structure two back-offs at first shaping catching groove, in the second shaping catching groove, its pulling force that produces is greater than the shrink force of the hard colloid of first chamber on the direction of height, make the lower extreme and first parting surface of the hard colloid of first chamber in the upset in-process, no clearance appears between the second parting surface, the TPE of having avoided the fluid state gets into between the lower extreme and first parting surface, the second parting surface of the hard colloid of first chamber, thereby solve the problem of product overlap, the production efficiency of shaping product has been improved greatly, reduce the cost of labor, satisfy the requirement of product appearance quality simultaneously.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic view of the overall structure of the mold for reducing flash.

Fig. 2 is a schematic view of the first forming catching groove and the second forming catching groove of the mold for reducing flash.

Fig. 3 is an enlarged schematic view of a position a of the mold for reducing flash according to the present invention.

Fig. 4 is an enlarged schematic diagram of a portion B of the mold for reducing flash according to the present invention.

In the drawing, 1-a die holder, 2-a lower die, 3-a product die core main body, 4-a first parting surface, 5-a first forming buckle groove, 6-a second forming buckle groove, 7-a glue injection hole and 8-a second parting surface.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

Referring to fig. 1 to 4, the present invention provides a technical solution: a flash reducing mold comprising: the die comprises a lower die 2, a die holder 1 and a product die core main body 3, wherein the lower die 2 is arranged on the upper surface of the die holder 1, an upper die is movably arranged on the upper side of the lower die 2, the product die core main body 3 is arranged on the front side and the rear side of the upper surface of the lower die 2, and a glue injection hole 7 is formed in the left side of the die holder 1;

the left part and the right part of the lower side of the front surface of the product mold core main body 3 are respectively recessed backwards to form a second forming buckle groove 6;

the middle part of the lower side of the front surface of the product core main body 3 is recessed backwards to form a first forming buckle groove 5.

As an embodiment of the present invention, please refer to fig. 1 to 4, the width and depth of the first forming buckle slot 5 are the same as those of the second forming buckle slot 6.

The length of the first forming catching groove 5 is larger than that of the second forming catching groove 6, when the mold is actually used (the first cavity hard colloid is a mixed colloid of PP, EPDM and TD 20), the upper mold is fixed on the lower mold 2, then the mixed colloid of PP, EPDM and TD20 is injected between the lower mold 2 and the upper mold through the glue injection hole 7, when the product mold core main body 3 is wrapped by the mixed colloid of PP, EPDM and TD20, part of the mixed colloid of PP, EPDM and TD20 enters the first forming catching groove 5 and the second forming catching groove 6, and after the first cavity hard colloid is formed, the second anti-shrinkage structure and the first anti-shrinkage structure on the inner wall of the first forming catching groove are integrally formed in the corresponding first forming catching groove 5 and the second forming catching groove 6.

The cross section of first shaping catching groove 5 is a rectangular structure, the cross section of second shaping catching groove 6 is a rectangular structure, second shaping catching groove 6 alternately sets up in 3 front sides of product mold core main part, the rear side, when in actual use, the product is when the stereoplasm colloid of moulding plastics for the first time, part stereoplasm colloid is at first shaping catching groove 5, the integrated type that converges in second shaping catching groove 6, make the inner wall both sides integrated into one piece of the hard colloid of first chamber have prevent structure one that contracts and prevent structure two, prevent structure one and prevent that structure two cooperates first shaping catching groove 5, second shaping catching groove 6 produces the pulling force to the hard colloid of first chamber, reduce the shrinkage of the hard colloid of first chamber on the high direction.

As an embodiment of the present invention, please refer to fig. 1 to 4, a second parting surface 8 is arranged at a joint of a lower side of a front end of the product mold core main body 3 and the lower mold 2, and a first parting surface 4 is arranged at a joint of a lower side of a rear end of the product mold core main body 3 and the lower mold 2;

in actual use, after the first cavity hard colloid is formed, the upper die is opened, the lower die 2 is turned for 180 degrees and then TPE soft glue is injected, and the first forming catching groove 5 and the second forming catching groove 6 are formed in the product die core main body 3, so that when the hard colloid is injected for the first time, part of the hard colloid is converged and integrated in the first forming catching groove 5 and the second forming catching groove 6, and a first shrink-proof structure and a second shrink-proof structure are integrally formed on two sides of the inner wall of the first cavity hard colloid;

first shaping catching groove 5, the cooperation of second shaping catching groove 6 is prevented structure one and is prevented structure two that contracts, the structure of a similar back-off has been increased on the product mold core in other words, when the hard colloid of first chamber is when contracting, because the structure one that contracts is prevented to direction of height and is prevented structure two back-offs at first shaping catching groove 5, in the second shaping catching groove 6, the pulling force that its produced is greater than the shrink force of the hard colloid of first chamber on direction of height, make do not have the clearance between the lower extreme of the hard colloid of first chamber and first parting surface 4, the second parting surface 8 in the upset process, the TPE of having avoided the fluid state gets into between the lower extreme of the hard colloid of first chamber and first parting surface 4, the second parting surface 8, thereby solve the problem of product overlap, the production efficiency of shaping product has been improved greatly, reduce the cost of labor, satisfy product appearance quality requirement simultaneously.

Go up the mould lower surface and be provided with the mould core of going up with product mold core main part 3 assorted, the shaping of the product of being convenient for.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A flash reducing die comprising: the die comprises a lower die (2), a die holder (1) and a product die core main body (3), wherein the lower die (2) is arranged on the upper surface of the die holder (1), and an upper die is movably arranged on the upper side of the lower die (2), and is characterized in that the product die core main body (3) is arranged on the front side and the rear side of the upper surface of the lower die (2), and a glue injection hole (7) is formed in the left side of the die holder (1);

the left part and the right part of the lower side of the front surface of the product mold core main body (3) are respectively recessed backwards to form a second forming buckle groove (6);

the middle part of the lower side of the front surface of the product mold core main body (3) is recessed backwards to form a first forming buckle groove (5).

2. The flash reduction mold of claim 1, wherein: the width and the depth of the first forming catching groove (5) are the same as those of the second forming catching groove (6).

3. The flash reduction mold of claim 2, wherein: the length of the first forming buckle groove (5) is larger than that of the second forming buckle groove (6).

4. A flash reducing die as claimed in claim 3, wherein: the cross section of the first forming buckle groove (5) is of a rectangular structure, the cross section of the second forming buckle groove (6) is of a rectangular structure, and the second forming buckle groove (6) is arranged on the front side and the rear side of the product mold core main body (3) in a crossed mode.

5. The flash reduction mold of claim 4, wherein: product mold core main part (3) front end downside is equipped with second die joint (8) with lower mould (2) junction, product mold core main part (3) rear end downside is equipped with first die joint face (4) with lower mould (2) junction.

6. The flash reduction mold of claim 5, wherein: the lower surface of the upper die is provided with an upper die core matched with the product die core main body (3).