阅读说明：本技术 一种发泡主体及其加工方法 (Foaming main body and processing method thereof ) 是由 王伟毅 于 2020-04-13 设计创作，主要内容包括：本发明公开了一种发泡主体,包括外层,外层内部设有腔体,腔体内容纳有芯层,芯层具有多孔洞结构,孔洞内充有气体。发泡主体的外层在芯层充气微孔结构的支持下保持饱满的外形,消除注塑件在撤除注塑压力且降温冷却后产生的收缩塌陷、翘曲等现象,从而改善产品外观。此外芯层发泡结构也能有效吸收破坏力,可提高由本发泡主体制成产品的抗冲击强度,在一些产品所必需的抗跌落测试中取得更好结果。本发明还公开了该发泡主体的加工方法。(The invention discloses a foaming main body which comprises an outer layer, wherein a cavity is arranged in the outer layer, a core layer is accommodated in the cavity, the core layer is of a porous structure, and gas is filled in the pores. The outer layer of the foaming main body keeps full appearance under the support of the core layer inflation micropore structure, and the phenomena of shrinkage collapse, warping and the like generated after injection molding pressure is removed and cooling is carried out on an injection molding piece are eliminated, so that the product appearance is improved. In addition, the core layer foaming structure can also effectively absorb destructive power, can improve the impact strength of products made of the foaming main body, and obtains better results in the necessary drop resistance test of some products. The invention also discloses a processing method of the foaming main body.)

1. A foaming main body comprises an outer layer (1), wherein a cavity (3) is arranged inside the outer layer (1), and a core layer (2) is accommodated in the cavity (3), and the foaming main body is characterized in that the core layer (2) has a porous structure, and gas is filled in the pores.

2. Foam body according to claim 1, wherein the material of the outer layer (1) is the same as the material of the core layer (2).

3. The foamed body according to claim 2 wherein said material is a plastic material.

4. The foamed body according to claim 1, wherein the diameter of the pores is 1 to 100 μm.

5. The foamed body according to claim 1, wherein the outer layer (1) has a thickness of 1 to 12 mm.

6. A method of manufacturing a foamed body according to any one of claims 1 to 5, using an injection moulding apparatus capable of forming a plurality of streams which are subsequently introduced into the mould cavity, comprising the steps of:

firstly, adding a thermoplastic material into injection molding equipment, melting, and injecting into a mold cavity of the injection molding equipment to form outer layer molding fluid;

step two, the outer layer molding fluid flows into the mold cavity through the injection port, so that an outer layer (1) generated by the outer layer molding fluid is formed in the mold cavity;

thirdly, adding the thermoplastic material into the injection molding equipment again, melting the thermoplastic material, adding gas with stable chemical property, and fusing the gas with the outer layer molding fluid to form a core layer molding fluid;

and step four, the core layer forming fluid flows into the mold cavity through the injection port, so that the core layer (2) generated by the core layer forming fluid is formed in the mold cavity, and the core layer (2) is arranged in the outer layer (1).

7. A method of processing a foamed body according to claim 6 wherein the gas has a purity of greater than 99.95%.

8. The method for processing a foamed body according to claim 6, wherein the temperature of the inlet is in the range of 170 to 240 ℃.

9. The method for processing a foamed body according to any one of claims 6 to 8, wherein the inflation pressure in the second step is 0.1 to 3.0 MPA.

Technical Field

The present invention relates to a material and a method of processing the same, and more particularly, to a foamed body and a method of processing the same.

Background

In the products of common injection molding process, for example, products such as toolboxes, handles, the phenomenon of shrink collapse appears easily in the junction of product shape, in order to solve this problem, design strengthening rib structure usually, but increased the design degree of difficulty and the design cost of mould through the strengthening rib mode, and the processing cost, influence production efficiency even, consequently need adopt more reasonable technology or structure to reduce the shrink of junction structure department. Utility model with publication number CN203285147U discloses a cubical switchboard handle exclusively in 2013, 11 months and 13 days, including: the support column comprises a first support column and a second support column which are separately arranged; the control column is arranged between the first support column and the second support column, and a control cavity penetrating through the control column is arranged in the control column; the control button is arranged in the control cavity, and the bottom of the control button is connected with the control mechanism; and one end of the handle is connected with the second supporting column. The handle is internally provided with a plurality of isolation plates which divide the handle into a plurality of cavities. And mounting holes are also formed in the bottoms of the first supporting column and the second supporting column. And a reinforcing rib is arranged at the joint of the second support column and the handle. The switch cabinet handle has the advantages of reasonable structural design, lower manufacturing cost, labor saving and convenience in operation and use and longer service life, and is suitable for being used as a switch cabinet handle and the structural improvement of similar products. However, the invention also solves the problem of shrinkage and collapse through the reinforcing rib structure, so the defects of relatively high design cost and processing cost and low production efficiency still exist.

Disclosure of Invention

Drawings

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

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is a partial schematic view of the present invention;

FIG. 4 is another schematic structural view of the present invention;

FIG. 5 is a schematic cross-sectional view of another embodiment of the present invention;

FIG. 6 is a flow chart of a process of the present invention;

fig. 7 is a schematic structural diagram of a processing apparatus according to the present invention.

In the figure, 1-outer layer, 2-core layer, 3-cavity, 4-feed inlet, 5-mould cavity, 6-injection inlet, 7-charging barrel and 8-gas injection device.

Detailed Description

The invention is further illustrated by the following specific embodiments in conjunction with the accompanying drawings.