CN210999635U

CN210999635U - Lightweight sole forming die based on metal 3D prints

Info

Publication number: CN210999635U
Application number: CN201921489377.2U
Authority: CN
Inventors: 戴述军; 向绪平; 杨雨; 卢献辉; 周利平
Original assignee: Dongguan Cangming 3d Tech Co ltd
Current assignee: Dongguan Cangming 3d Tech Co ltd
Priority date: 2019-09-06
Filing date: 2019-09-06
Publication date: 2020-07-14
Anticipated expiration: 2029-09-06

Abstract

The utility model provides a lightweight sole forming die based on metal 3D printing, belonging to the technical field of die manufacturing; the hot forming die comprises an upper die plate, a lower die plate, an inner die kernel upper die and an inner die kernel lower die, wherein the inner die kernel upper die and the inner die kernel lower die are correspondingly arranged to form a hot forming sole die cavity; the inner mold core lower mold and the inner mold core upper mold are directly manufactured by adopting a metal 3D printing technology, and the inner parts of the inner mold core lower mold and the inner mold core upper mold are in hollow structures after shell extraction; and a light-weight structure is arranged on the end face, far away from the sole die cavity, of the inner membrane kernel lower die. The utility model discloses on the basis of ensureing mould overall structure intensity, mould all adopts the direct preparation of metal 3D printing technique to form on interior mould benevolence lower mould and the interior mould benevolence, and it is hollow structure all to handle through taking out the shell inside, and interior mould benevolence lower mould keeps away from be equipped with the lightweight structure on the terminal surface of sole die cavity for structural realization subtracts the purpose of heavy again, has improved the flexibility of mould operation, has reduced the intensity of labour of workman's operation.

Description

Lightweight sole forming die based on metal 3D prints

Technical Field

The utility model relates to a technical field that the mould was made especially relates to a lightweight sole forming die based on metal 3D prints.

Background

The production process of the traditional sole forming die is complex, most of the traditional sole forming die is produced into a metal die through a plurality of procedures and machining modes such as casting or CNC (computer numerical control), and the metal die is solid inside the metal die, so that the die is heavy and rough. The sole forming die often needs manual carrying and overturning of operators in the actual sole product production process, and due to the large weight of the sole forming die, the gender of the operators is limited, and the physical strength of the operators is high; in addition, when the sole forming die is operated, the working strength of workers is high, and the flexibility of operation cannot be realized.

The shoe sole forming die is limited by the fact that traditional shoe sole forming dies adopt machining modes such as casting or CNC, weight reduction optimization cannot be carried out on solid parts inside the die, even if redundant partial structures of the die are machined through secondary CNC, not only can the production cost be increased, but also the requirement of the overall structure of the die on strength can be guaranteed while the requirement for weight reduction can not be met. Based on the restriction of the current traditional processing mode, the sole forming die cannot reduce the weight of the pain point, so that under the condition of adopting the 3D printing production processing mode, the sole forming die can reduce the weight on the basis of ensuring the requirement of the overall structural strength of the die.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a lightweight sole forming die based on metal 3D prints, it has the requirement that can realize again on the basis of guaranteeing mould overall structure intensity requirement subtracting the heavy purpose, and directly has realized the manufacturing of mould, has avoided the loaded down with trivial details process of traditional mould processing.

The utility model provides the following technical scheme, a lightweight sole forming die based on metal 3D printing, which comprises an upper template, a lower template, an inner mold core upper die arranged on the upper template and an inner mold core lower die arranged on the lower template, wherein an installation groove for arranging the inner mold core lower die is dug on the lower template; the inner mold core upper mold and the inner mold core lower mold are correspondingly arranged to form a thermal forming sole mold cavity; preferably, the inner mold core lower mold is directly manufactured by adopting a metal 3D printing technology, and the interior of the inner mold core lower mold is in a hollow structure after shell extraction; this interior mould benevolence lower mould is under 3D prints production, on guaranteeing the basis that mould overall structure intensity required, the inside shell handling that is hollow structure through taking out of interior mould benevolence lower mould has realized the purpose that reduces sole forming die's weight.

Preferably, the hollow structure of the inner mold core lower mold is a hollow structure or a lattice structure.

Preferably, a light-weight structure is arranged on the end face, far away from the sole die cavity, of the inner die core lower die; the structure achieves the purpose of reducing the weight of the sole forming die.

Preferably, the lightweight structure is a grid structure.

Preferably, the lightweight structure is a honeycomb structure.

Preferably, the lightweight structure is a porous structure.

Preferably, the inner mold core upper mold is directly manufactured by adopting a metal 3D printing technology, and the interior of the inner mold core upper mold is in a hollow structure after shell extraction; this mould goes up in interior mould benevolence under 3D prints production, on guaranteeing the basis that mould overall structure intensity required, the inside shell handling that is hollow structure through taking out of interior mould benevolence lower mould has realized the purpose that reduces sole forming die's weight.

Preferably, the hollow structure of the inner mold core upper mold is a hollow structure or a lattice structure.

Preferably, the upper template and the lower template are made of steel or aluminum, and the inner mold core upper mold and the inner mold core lower mold are made of 3D printed metal powder, including but not limited to mold steel powder, stainless steel powder or aluminum alloy powder.

The utility model has the advantages that: at present, the mode of processing the metal shoe bottom die by adopting a 3D printing technology has the following characteristics:

1. compared with the traditional processing mode of the sole forming die, the weight reduction optimization of the solid part in the sole forming die can be realized, the integral one-time forming metal shoe die module is realized, and the problems of complicated manufacturing procedures and low production efficiency caused by the traditional processing mode are solved.

2. Based on the direct sole forming die of making of metal 3D printing technique, on the basis of ensureing mould overall structure intensity, mould all adopts the direct preparation of metal 3D printing technique to form on interior mould benevolence lower mould and the interior mould benevolence, and it is hollow structure all to take out the shell processing inside it, and the interior mould benevolence lower mould keeps away from be equipped with lightweight structure on the terminal surface of sole die cavity for structural realization subtracts the purpose of heavy again, has improved the flexibility of mould operation, has reduced the intensity of labour of workman's operation.

Drawings

Fig. 1 is an exploded view of a lightweight sole forming mold based on metal 3D printing according to the present invention;

fig. 2 is a hollow structure diagram of the cross section of an inner mold core and a lower mold of the lightweight sole forming mold based on metal 3D printing according to the present invention;

fig. 3 is another hollow structure diagram of the cross section of the inner mold core lower mold of the lightweight sole molding mold based on metal 3D printing according to the present invention;

fig. 4 is a schematic view of an inner mold core lower mold light-weight structure of a light-weight sole forming mold based on metal 3D printing according to the present invention;

fig. 5 is another schematic view of a lightweight inner mold core lower mold of the lightweight sole molding mold based on metal 3D printing according to the present invention;

fig. 6 is a schematic view of another lightweight structure of an inner mold core lower mold of the lightweight sole molding mold based on metal 3D printing according to the present invention;

description of reference numerals: 10-an upper template, 20-a lower template, 21-an installation groove, 30-an inner mold kernel upper mold, 40-an inner mold kernel lower mold, 50-a hollow structure and 60-a lightweight structure.

Detailed Description

In order to make the object, technical solution and technical effect of the present invention more clearly understood, the present invention will be further described with reference to the following embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Referring to fig. 1, the light sole forming mold based on metal 3D printing comprises an upper mold plate 10, a lower mold plate 20, an inner mold core upper mold 30 arranged on the upper mold plate 10, and an inner mold core lower mold 40 arranged on the lower mold plate 20, wherein an installation groove 21 for installing the inner mold core lower mold 40 is dug in the lower mold plate 20; the inner mold core upper mold 30 and the inner mold core lower mold 40 are correspondingly arranged to form a thermal forming sole mold cavity; preferably, the upper mold plate 10 and the lower mold plate 20 are made of steel or aluminum, and the inner core upper mold 30 and the inner core lower mold 40 are made of 3D printed metal powder, including but not limited to mold steel powder, stainless steel powder or aluminum alloy powder; especially, the inner mold core upper die 30 and the inner mold core lower die 40 which adopt 3D printing metal powder, including but not limited to die steel powder, stainless steel powder or aluminum alloy powder, are directly manufactured by adopting a metal 3D printing technology, and are mainly manufactured by a method of selectively melting by scanning a galvanometer high-energy laser beam, and the method comprises the following specific steps: firstly, exporting three-dimensional data of the structure of the inner core upper die 30 and the inner core lower die 40 after the light weight is finished into a data format which can be recognized by metal additive manufacturing equipment; secondly, importing the data into special 3D printing software to automatically or manually repair data errors and then carrying out layered slicing processing; finally, the obtained slice data is led into metal additive manufacturing equipment to perform one-time integral 3D metal printing on the metal shoe mold, and the inner mold core upper mold 30 and the inner mold core lower mold 40 of the lightened metal shoe mold can be directly obtained after the printing is finished. It should be noted that the upper template 10 and the lower template 20 are made of steel or aluminum, which reduces the 3D printing time, and thus has low cost and high stability, and in addition, the inner core upper die 30 and the inner core lower die 40 are directly manufactured by a metal 3D printing technology without heat treatment, thereby saving the manufacturing cost of the dies and improving the production efficiency.

Example 1

Referring to fig. 2 and 3, the inner core lower die 40 is directly manufactured by using a metal 3D printing technology, and the interior of the inner core lower die is subjected to shell extraction to form a hollow structure 50, specifically, the hollow structure 50 of the inner core lower die 40 is a hollow structure or a lattice structure, and the like; this interior mould benevolence lower mould 40 is under 3D printing production, on guaranteeing the basis of mould overall structure intensity requirement, can realize subtracting heavy optimization to the inside solid part of sole forming die, and realizes the shaping of whole one-time centre mould benevolence lower mould 40, it is loaded down with trivial details to have solved the manufacturing procedure that traditional processing mode brought, and the problem that production efficiency is low has improved the flexibility of mould operation, has reduced the intensity of labour of workman's operation.

Further, the inner core upper die 30 is directly manufactured by a metal 3D printing technology, and the interior of the inner core upper die is subjected to shell extraction to form a hollow structure 50, specifically, the hollow structure 50 of the inner core upper die 30 is a hollow structure or a lattice structure; it should be noted that the hollow structure 50 of the inner core upper die 30 is the same as the hollow structure 50 of the inner core lower die 40, and thus the figures are not shown one by one; this mould 30 is gone up to centre form benevolence under 3D prints production, on ensureing the basis of mould overall structure intensity requirement, mould 30 is inside to be hollow structure through taking out the shell processing in the centre form benevolence and has realized the purpose that reduces sole forming die's weight, has improved the flexibility of mould operation, has reduced the intensity of labour of workman's operation.

Example 2

Referring to fig. 4, 5 and 6, a light-weight structure 60 is disposed on an end surface of the inner core lower mold 40 away from the sole mold cavity, specifically, the light-weight structure 60 is a grid structure, a honeycomb structure or a porous structure; this interior mould benevolence lower mould 40 is under 3D printing production, on guaranteeing the basis of mould overall structure intensity requirement, can realize subtracting heavy optimization to the inside solid part of sole forming die, and realizes the shaping of whole one-time centre mould benevolence lower mould 40, it is loaded down with trivial details to have solved the manufacturing procedure that traditional processing mode brought, and the problem that production efficiency is low has improved the flexibility of mould operation, has reduced the intensity of labour of workman's operation.

Further, the inner core upper die 30 is directly manufactured by a metal 3D printing technology, and the interior of the inner core upper die is subjected to shell extraction to form a hollow structure 50, specifically, the hollow structure of the inner core upper die 30 is a hollow structure or a lattice structure; it should be noted that the hollow structure 50 of the inner core upper die 30 is the same as the hollow structure 50 of the inner core lower die 40, and thus the figures are not shown one by one; this mould 30 is gone up to interior mould benevolence under 3D prints production, on ensureing the basis of mould overall structure intensity requirement, interior mould benevolence lower mould 40 is inside to be hollow structure through taking out the shell processing and has realized the purpose that reduces sole forming die's weight, has improved the flexibility of mould operation, has reduced the intensity of labour of workman's operation.

To sum up, based on 3D print processing sole forming die, on the basis of ensureing mould overall structure intensity, mould 30 all adopted the direct preparation of metal 3D printing technique to form on interior mould benevolence lower mould 40 and the interior mould benevolence, it is inside all to be hollow structure 50 through taking out the shell processing, and is equipped with lightweight structure 60 on the terminal surface that the sole die cavity was kept away from to interior mould benevolence lower mould 40 for structural realization subtracts the purpose of heavy again, has improved the flexibility of mould operation, has reduced the intensity of labour of workman's operation.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of the ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, its framework form can be nimble changeable, can derive series of products. But merely as a matter of simple deductions or substitutions, should be considered as belonging to the scope of patent protection of the present invention as determined by the claims submitted.

Claims

1. A lightweight sole forming die based on metal 3D printing comprises an upper template, a lower template, an inner mold core upper die arranged on the upper template and an inner mold core lower die arranged on the lower template, wherein an installation groove for installing the inner mold core lower die is dug in the lower template; the inner mold core upper mold and the inner mold core lower mold are correspondingly arranged to form a thermal forming sole mold cavity; the method is characterized in that: the inner mold core lower mold is directly manufactured by adopting a metal 3D printing technology, and the inner portion of the inner mold core lower mold is of a hollow structure after being subjected to shell extraction treatment.

2. The metal 3D printing-based lightweight sole molding die of claim 1, wherein: the hollow structure of the inner mold core lower mold is a hollow structure or a lattice structure.

3. The metal 3D printing-based lightweight sole molding die of claim 1, wherein: and a light-weight structure is arranged on the end face, far away from the sole die cavity, of the inner die core lower die.

4. The metal 3D printing-based lightweight sole molding die of claim 3, wherein: the lightweight structure is a grid structure.

5. The metal 3D printing-based lightweight sole molding die of claim 3, wherein: the lightweight structure is a honeycomb structure.

6. The metal 3D printing-based lightweight sole molding die of claim 3, wherein: the lightweight structure is a porous structure.

7. The metal 3D printing-based lightweight sole molding die of claim 1, wherein: the inner mold kernel upper mold is directly manufactured by adopting a metal 3D printing technology, and the inner portion of the inner mold kernel upper mold is of a hollow structure after being subjected to shell extraction treatment.

8. The metal 3D printing-based lightweight sole molding mold of claim 7, wherein: the hollow structure of the inner mold core upper mold is a hollow structure or a lattice structure.

9. The metal 3D printing-based lightweight sole molding die of claim 1, wherein: the upper die plate and the lower die plate are made of steel or aluminum, the inner die core upper die and the inner die core lower die are made of 3D printing metal powder, and the 3D printing metal powder comprises but is not limited to die steel powder, stainless steel powder or aluminum alloy powder.