WO2013170401A1

WO2013170401A1 - New method for producing surrounding connection of heat-insulating protecting component

Info

Publication number: WO2013170401A1
Application number: PCT/CN2012/000682
Authority: WO
Inventors: 崔学军
Original assignee: Cui Xuejun
Priority date: 2012-05-18
Filing date: 2012-05-18
Publication date: 2013-11-21
Also published as: US20150068021A1; JP5872109B2; CN103702779B; JP2015516305A; DE112012006386T5; CN103702779A

Abstract

An assembled die and a method for producing W type flanging of heat-insulating protecting component using same are disclosed. The assembled die comprises a terraced-forming die and a bending forming die. The method comprises: feeding the material of layers according to the outside measurement of the product and the requirement of each layer; fixing the layers together by the fixture to form a composite base plate; stamping with the terraced-forming die to formed the terraced composite base plate; then putting the composite base plate on the lower die (D40) of the bending forming die; moving the upper die (D30) downwardly to the lower die of the bending forming die; applying lateral force on the edge of the terraced composite base plate via the upper die cambered surface (D31, D33) of the bending forming die to bend the edge of the composite base plate inward; moving the upper die continuously to the lower die, and applying vertical pressure on the outside part of the terraced composite base plate via the undersurface (D35) of the upper die of the bending die to stamp the terraced part of terraced base plate into W type flanging structure. The process for W type flanging of heat-insulating protecting component will be completed in two steps by using the above assembled die and the method.

Description

New method for producing peripheral connections for thermal protection components

Technical field:

The invention relates to a combined mold for producing a w-type flange of an heat-insulating protective member, and a method for producing a w-type flange of an heat-insulating protective member by using the combined mold, and is particularly suitable for the production and processing of a multi-layer heat-insulating protective member. The structural guards can withstand more intense vibrations without affecting the insulation due to delamination of the material perimeter.

Background technique:

Insulation components, especially metal insulation protection components, have been widely used in modern industry. Due to the inherent characteristics of the metal itself, the structure of the metal insulation protection component has high strength, good impact resistance and can be applied to all weather applications. , easy to install and replace, and long-lasting use, however, the development of effective connection methods is the key to the manufacture of metal insulation protection components; the quality and cost advantages of such products are often compromised due to improper connection process, such as the use of professional machine combinations Mold manufacturing of such products will have limitations such as large investment and long product development cycle, such as fixing by means of bonding, welding, riveting, etc., and limited by the temperature environment and the material itself. At present, for the heat-insulating parts, L-shaped flanges and z-shaped flanges are often used, but there is little literature on w-type flanges. The main reason is not that the structure is not applicable, but if the conventional method is used. The production of such a flanged structure has many steps and complicated processes. Especially for the heat-insulating parts, the output is large, the size and shape vary with the product, and some products must ensure that the tolerance of the periphery is controlled within 1mm, so the full sequence is adopted. The stamping process can complete the batch processing of such products. However, it is almost impossible to achieve such burring by using the stamping process. The numerous processes will bring high input costs, and it is difficult to achieve mass industrial production. Therefore, the implementation of this connection method is designed to be highly efficient, and fewer processes are the key to improving production efficiency and reducing production costs. Summary of the invention:

The object of the present invention is to provide a combined mold for producing a w-type flange of an insulating protection member, which can complete the w-type flange forming process of the heat-insulating protective member in two steps, and can adapt to different Thickness, different layers of metal plates and with sandwich insulation. A combined mold for producing a W-shaped flange of an insulation protection component, comprising a step forming mold and a bending forming mold, wherein the step forming mold comprises an upper mold D10, an upper mold edge portion D11, D15, and a stepped shape of the upper mold Edges D12, D13, D14, D16, D17, D18, lower die D20, lower die edge portions D21, D25 and stepped inner edges D22, D23, D24, D26, D27, D28 of the lower die, upper die edge portion Dl l, D15 and lower die edge portions D21, D25 have a certain gap when the mold is closed, and a gap larger than the material thickness between the inner side of the upper mold and the inner side of the corresponding lower mold when the mold is closed; the bending forming mold includes The upper mold D30 and the lower mold D40, wherein the upper mold D30 comprises an upper mold side surface D32, D34 perpendicular to the upper mold bottom surface D35 and an upper mold curved surface D31, D33 which is in contact with the upper mold side surface, wherein the upper mold curved surface is oriented The curved surface extending outside the mold.

The invention also provides a method for producing a w-type flange of an insulation protection component by using the above combined mold, comprising: discharging materials of each layer according to external dimensions and requirements of each layer, fixing together by tooling to form a composite substrate, and placing the composite substrate Forming the stepped composite substrate into the step forming mold, placing the formed stepped composite substrate on the lower mold D40 of the bending forming mold, and moving the upper mold D30 of the bending forming mold to the lower mold D40, bending the forming mold The upper mold arc faces D31 and D33 of the die D30 apply lateral pressure to the edge of the stepped composite substrate, and the edge of the stepped composite substrate is bent toward the inner side thereof, and the upper die D30 continues to move toward the lower die D40 to bend the upper mold. The bottom surface D35 of the mold D30 applies a vertical pressure to the edge of the stepped composite substrate, and the stepped portion of the stepped composite substrate is punched into a w-shaped flange structure.

Preferably, the metal heat insulation protection member comprises an upper metal substrate, a lower metal substrate and an intermediate heat insulating material.

The invention has the advantages that: the w-type flange of the heat-insulating protection component only needs two stamping processes, reduces the capital investment of the manual and the mold equipment, reduces the cost, and improves the production efficiency; meanwhile, the w-type realized by the method Because the blanking edge is inward, the finished product is smooth and burr-free; at the same time, because the surrounding is multi-layered material superimposed, the peripheral strength is increased. For the heat insulating products, thinner materials can be used for production. Manufacturing, drawing and drawing diagrams ensure the product quality while ensuring product strength and reducing the cost of direct materials. BRIEF DESCRIPTION OF THE DRAWINGS:

1 Schematic diagram of the state in which the layers of the material fixed before the production of the product of the invention are unfolded;

2 ladder forming mold structure and a schematic diagram of the material to be stamped placed on the mold;

3 After the step forming mold reaches the closed state, a schematic diagram of the stepped composite substrate is formed;

4 Schematic diagram of stamped and formed stepped composite substrate.

5 Schematic diagram of the bending forming mold structure.

6 The bending forming mold closes the step of forming the stepped portion of the stepped composite substrate into a w-shaped flange and an effect diagram of the formed flange structure.

Wherein: 1, 2 - metal substrate; 3 - thermal insulation material; 4, 7 - the vertical part of the stepped composite substrate; 5, 8 - the intermediate horizontal part of the stepped composite substrate; 6 - the vertical part of the stepped composite substrate; D10—the upper mold of the step forming mold; Dl l, D15—the upper mold edge portion of the step forming mold; D12, D13, D14, D16, D17, D18—the stepped inner edge of the upper mold of the step forming mold; D20—step The lower die of the forming die; D21, D25—the lower die edge of the step forming die; D22, D23, D24 and D26, D27, D28—the stepped inner edge of the lower die of the step forming die; D30—the bending forming die Upper mold; D31, D33—the upper mold curved surface of the bending forming mold; D32, D34—the upper mold side of the bending forming mold; D35—the upper mold bottom surface of the bending forming mold; D40—the lower mold of the bending forming mold . Specific implementation plan:

As shown in FIG. 1, it is a stacked state in which three layers of materials fixed before the production of the product of the present invention are unfolded; wherein the metal substrates 1 and 2 are cut into the same size according to the size of the component; the intermediate layer is heat transfer rate. The low heat insulating material is cut; the metal substrates 1, 2 and the cut heat insulating material 3 are fixed together by tooling.

As shown in Figure 2, it is the step forming die structure used in the first step of stamping, including the upper die D10, the upper die edge portions Dl l, D15, the stepped inner edges D12, D13, D14, D16, D17 of the upper die, D18, lower mold D20, lower mold edge portions D21, D25 and stepped inner sides D22, D23, D24, .D26, D27, D28 of the lower mold.

As shown in FIG. 3, in the downward movement of the mold D10, the upper die edge portions Dl1, D15 and the lower die edge portions D21, D25 respectively contact the first cutting of the metal substrate to realize blanking; meanwhile, the mold continues to move downward. When the step forming mold is completely closed, the upper die edge portions Dl l, D15 and the lower die edge portions D21, D25 have a certain gap when the mold is closed, and the inner side of the upper mold and the corresponding inner side of the lower mold are in the mold. When closed, it has a gap larger than the material thickness, and when the mold is completely closed, it can be pressed into a product having a stepped shape as shown in FIG.

As shown in Figure 4, the first stamping process produces a composite substrate with stepped edges.

As shown in Fig. 5, the product is placed on the lower mold D40 of the bending forming mold in the direction shown in Fig. 5. In the process of running the upper mold D30 of the bending forming mold downward, the upper mold curved surfaces D31, D33 and The vertical portions 4 and 7 of the stepped composite substrate are in contact with each other. Under the lateral force of the curved surface, the vertical portions 4 and 7 of the stepped composite substrate begin to inwardly reverse. Since the stepped portions are integral structures, the steps are stepped. The inward inversion of the outer vertical portions 4, 7 of the composite substrate drives the stepped composite substrate intermediate horizontal portions 5, 8 and the stepped composite substrate inner vertical portions 6, 9 simultaneously flipped inward, and the upper mold D30 continues to move downward. Under the action of the lateral force, the stepped portions of the stepped composite substrate are finally pushed into the cavity formed by the upper mold sides D32, D34, the upper mold curved surfaces D31, D33 and the upper mold bottom surface D35.

As shown in Fig. 6, the upper mold D30 continues to descend, applying a vertical downward force to the outer vertical portions 4, 7 of the stepped composite substrate, and stamping the stepped edge portions of the stepped composite substrate to form a w-shaped flange structure.

Claims

Quanhe iJ request

1. A combined mold for producing a heat-insulating protective member w-shaped flange, comprising a step forming mold and a bending forming mold,

Wherein, the step forming mold comprises an upper die (D10), an upper die edge portion (D11, D15), a stepped inner edge of the upper die (D12, D13, D14, D16, D17, D18), a lower die (D20), Lower die edge portion (D21, D25) and stepped inner edge of the lower die (D22, D23, D24, D26, D27, D28), upper die edge portion (D11, D15) and lower die edge portion (D21) D25) having a certain gap when the mold is closed, and having a gap larger than the material thickness between the inner side of the upper mold and the inner side of the corresponding lower mold when the mold is closed;

The bending forming mold includes an upper mold (D30) and a lower mold (D40), wherein the upper mold (D30) includes an upper mold side (D32, D34) perpendicular to the upper mold bottom surface (D35) and an upper surface that is in contact with the upper mold side The curved surface (D31, D33), wherein the upper curved surface is a curved surface extending outward of the mold.

2. A method of producing a heat-insulating protective member w-type flange by a combined mold according to claim 1, comprising:

The materials of each layer are discharged according to the outer dimensions and the requirements of each layer, and are fixed together by tooling to form a composite substrate.

The composite substrate is placed in a step forming mold to form a stepped composite substrate.

The formed stepped composite substrate is placed on the lower mold (D40) of the bending forming mold, and the upper mold (D30) of the bending forming mold is moved to the lower mold (D40), and the upper mold (D30) of the forming mold is bent. The upper mold arc surface (D31, D33) applies lateral pressure to the edge of the stepped composite substrate, and the edge of the stepped composite substrate is bent toward the inner side thereof, and the upper mold (D30) continues to move toward the lower mold (D40), and is bent and formed. The bottom surface (D35) of the upper mold (D30) of the mold applies vertical pressure to the edge of the stepped composite substrate, and the stepped portion of the stepped composite substrate is punched into a w-shaped flange structure.

The method of claim 2, wherein the metal heat shield member comprises an upper metal substrate, a lower metal substrate, and an intermediate heat insulating material.