CN102080912B - Integrally molded refrigerator door and manufacturing method thereof - Google Patents

Abstract

The invention provides a refrigerator door of which the inner container and the door plate are integrally molded and a manufacturing method thereof. In the invention, the inner container and the door plate of the refrigerator door form an integral structure formed by blowing a hollow pipe in a die. The manufacturing method of the refrigerator door comprises the following steps of: (a) extruding a square hollow pipe with the width of the refrigerator door by utilizing ABS (Acrylonitrile Butadiene Styrene) or other plastics; (b) cutting off the hollow pipe, wherein the length of an obtained hollow pipe is longer than the required height of the refrigerator door; (c) putting the cut set rectangular hollow pipe into a blowing die to blow and mold; (d) cutting off waste materials at two ends after the molding is finished; (e) mounting an upper decorative cover and a lower decorative cover and foaming; and (f) carrying out film coating and spraying on a panel after foaming to achieve the purpose of decoration. The invention has the advantages of side bubble leakage prevention, fewer preassemble procedures, low cost and capability of automatic production.

Description

Integrally formed refrigerator doors and manufacture method thereof

Technical field

The present invention relates to a kind of integrally formed refrigerator doors and manufacture method thereof, is specifically the integrally formed refrigerator doors of a kind of courage and door-plate and manufacture method thereof.

Background technology

Refrigerator is extensively present in common people family as one way of life necessity, and refrigerator doors has important effect as the critical piece of refrigerator.Refrigerator doors mainly comprises a courage, door-plate, the thermal insulation layer between door courage and door-plate, upper and lower trim component.Classical production process fits together due to door courage and door-plate both sides, there is gap, so easily occur in foaming process that the phenomenon of bubble is leaked in side, has had a strong impact on the quality of refrigerator doors.Simultaneously because conventional method preassembled unit is many, operation is loaded down with trivial details, so be difficult to realize automation, be high, the inefficient manufacture method of a kind of cost.

Summary of the invention

The assembling parts that the object of the invention is to for existing in traditional assembling mode is many, production cost is high, refrigerator every courage and door-plate cannot seal completely thus cause leaking problems such as steeping, there is provided a kind of can prevent side from leaking bubble refrigerator every courage and the integrally formed refrigerator doors of refrigerator doors door-plate and a kind of production efficiency high, the refrigerator doors manufacture method that production cost is low.

The object of the present invention is achieved like this: square hollow is propelled the price of formation integral structure one and propelling the price of in mould of required refrigerator doors adaptation, it includes refrigerator every courage and refrigerator doors door-plate, because this structure integrally propels the price of shaping, so eliminate the gap between refrigerator every courage and refrigerator doors door-plate, thus the generation preventing side leakage to steep.This cannot accomplish in traditional packaging technology.The concrete operation step that this integrally formed refrigerator doors manufactures is as follows:

A) square hollow of ABS or other plastic extrusion refrigerator doors width is utilized;

B) blocked by this hollow pipe, its length will be longer than required height of refrigerator door;

C) the fixed length square hollow after blocking is put into propel the price of mould and carry out propelling the price of shaping;

D) the two ends waste material after being shaped is cut out;

E) install lower trim, foam;

F) the rear counter plate that foams carries out overlay film and spraying reaches decoration function

For the demand of different refrigerator doors shapes, only need to adopt in step c with required refrigerator doors shape adaptation propel the price of mould.

In sum, because the door courage of refrigerator doors and the door-plate of refrigerator doors propel the price of integrally formed by a hollow pipe propelling the price of in mould, so do not have gap between them, in foaming process, side is just prevented to leak the generation of bubble.Simultaneously due to the door courage of refrigerator doors and door-plate integrally formed, decrease prepackage operation, the object reducing production cost can be reached.And due to a)-d in this technological process) step can continued operation, so easily realize automation, enhances productivity.In the c step of technological process owing to needing to select different to propel the price of mould according to different, in this approach there is flexibility.Each producer can according to the actual conditions of oneself, select different moulds to meet requirement to refrigerator doors size shape.

Accompanying drawing explanation

Fig. 1 is tubular structure schematic diagram

Fig. 2 is for propelling the price of mould cross-sectional cut-away structural representation

Fig. 3 is for propelling the price of rear integral structure schematic diagram

Fig. 4 is integrated structure with upper and lower decorative panel in conjunction with schematic diagram

Component of the present invention comprises: 1-door courage, 2-door-plate, 3-foam chamber, 4-counterdie, 5-patrix, 6-cavity.

Detailed description of the invention:

Now by reference to the accompanying drawings and embodiment the invention will be further described:

First use plastics, preferred ABS extrudes the hollow square tube of refrigerator doors width.Then this hollow square tube is cut into according to height of refrigerator door the square hollow that ratio height of refrigerator door as shown in Figure 1 slightly grows.Then the mould that propels the price of that the square hollow after this is cropped is put into as Fig. 2 carries out propelling the price of shaping, propelling the price of in the middle of process, the structure of refrigerator doors door-plate 2 is formed in patrix 5, and the structure of refrigerator every courage 1 is formed in counterdie 4, and the cavity body structure of its foam chamber 3 is formed in cavity 6.The excess waste at the square hollow two ends through propelling the price of being cut out, obtaining integral structure as shown in Figure 3.This integral structure is assembled according to the mode of Fig. 4 and upper and lower decorative panel and forms refrigerator doors.The integrated ice chamber door completing assembling is foamed, in this process, because door courage and door-plate are integrally formed, so side does not exist gap, also just avoids the phenomenon that bubble is leaked in side common in foaming.To be foamed complete after, refrigerator doors door-plate portion 2 carries out overlay film spraying, reaches object attractive in appearance.

Claims (2)

1. integrally formed refrigerator doors, comprises upper and lower trim, refrigerator doors inner bag and refrigerator doors door-plate, it is characterized in that: refrigerator doors inner bag and refrigerator doors door-plate are overall structures propelled the price of in a mold by hollow pipe; The width of described hollow pipe is refrigerator doors width; The inside molding structure of described mould and required refrigerator doors adaptation; It is prepared by following steps:

A) by the square hollow of plastic extrusion refrigerator doors width;

B) square hollow blocked, it is high that length is longer than required refrigerator every;

C) square hollow is put into propel the price of mould and carry out propelling the price of shaping;

D) the two ends waste material of the rear square hollow that has been shaped is cut out;

E) install lower trim, foam;

F) the rear counter plate that foams carries out overlay film and spraying reaches decoration function.

2. a method for the integrally formed refrigerator doors described in manufacturing claims 1, is characterized in that comprising the following steps:

A) by the square hollow of plastic extrusion refrigerator doors width;

B) square hollow blocked, it is high that length is longer than required refrigerator every;

C) square hollow is put into propel the price of mould and carry out propelling the price of shaping;

D) the two ends waste material of the rear square hollow that has been shaped is cut out;

E) install lower trim, foam;

F) the rear counter plate that foams carries out overlay film and spraying reaches decoration function.