CN1288407C - Refrigerator door body and manufacturing method thereof - Google Patents
Refrigerator door body and manufacturing method thereof Download PDFInfo
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- CN1288407C CN1288407C CN 200310110247 CN200310110247A CN1288407C CN 1288407 C CN1288407 C CN 1288407C CN 200310110247 CN200310110247 CN 200310110247 CN 200310110247 A CN200310110247 A CN 200310110247A CN 1288407 C CN1288407 C CN 1288407C
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- assembly
- door shell
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Abstract
The present invention discloses a door body of a refrigerator and a manufacturing method thereof. The present invention comprises a door outer shell, a supporting insertion strip assembly, a heat insulation layer and a door inner shell, wherein the door outer shell is produced by the process that a multi-layer composite plastic board of ABS and PE is firstly processed by vacuum blow molding, and excess edges are then cut by a trim cutter; the supporting insertion strip assembly 1 is composed of four supporting insertion strips, namely an upper, a lower, a left and a right supporting insertion strips, and the four insertion strips are plastic components formed by injection molding or extrusion; the door inner shell is made of plastic boards of ABS or HIPS which are in vacuum forming and are commonly used for the refrigerator. The manufacturing method comprises the following steps: firstly, the door outer shell 1 and the supporting insertion strip assembly 2 are spliced, assembled and fixed; then, the door outer shell 1 and the supporting insertion strip assembly 2 are welded together by adopting an ultrasonic welding technique, or are stuck together by an adhesive; therefore, a neck closing box type structure which is shown in figure 1 is formed by the firmly connected door outer shell and the supporting insertion strip assembly, and figure 2 is an amplifying viewgraph of the joint of the connected door outer shell and the supporting insertion strip assembly; finally, the neck closing box type structure and a door liner are processed by integral foaming to form the door body of the refrigerator, and the door liner is formed by vacuum forming. The door outer shell in vacuum forming which is different from the common metal door outer shells can be processed into various curved surface entities with complicated and graceful shapes, and thus, the door body has the advantages of simple manufacturing method, low cost and beautiful appearance. In a word, the manufacturing.
Description
Technical field
The present invention relates to a kind of manufacture method of door of refrigerator body.
Background technology
Traditional refrigerator generally all adopts metallic plate punching to do the door shell of refrigerator, the sheet metal cost is higher on the one hand, the machinability that stretches of metallic plate punching is not fine on the other hand, can only carry out comparatively simple punching press moulding usually, is not suitable for complexity, beautiful surface modeling stretches.The door body of refrigerator several years ago also appearred on the market making of several big mouldings, but because the manufacturing defect of this refrigerator door is a lot: large-scale injection-moulding device be arranged; Moulding mould input cycle is long, expense is huge; Can not be flexible and changeable, it is not strong to produce adaptive faculty.Along with the aggravation of market price competition and day by day increasing of individual demand, the refrigerator with conventional door body is at a disadvantage gradually in market competition in a word.The someone proposes to do the door shell of refrigerator with the ABS of MULTILAYER COMPOSITE and PE plate through vacuum forming in recent years, but since the manufacture method of this refrigerator door that is that all right is ripe, the specific implementation comparison difficulty of getting up was not also met on market at present.
Summary of the invention
Purpose of the present invention has just provided a kind of manufacture method of producing this refrigerator door.
Technical scheme of the present invention: a kind of manufacture method of door of refrigerator body, comprise door shell, support the cutting assembly, thermal insulation layer, door inner casing; Support the cutting assembly and comprise upper and lower, left and right four root cuttings, its manufacture method may further comprise the steps:
(1) door shell vacuum forming: door shell is with bead cutter the excision of surplus limit to be made after the vacuum blow molding by the plastic plate of ABS and PE MULTILAYER COMPOSITE; Concrete grammar is, being ready to the thick door shell sheet material of suitable dimension 2～3mm puts on the vacuum forming machine, adjust each warm area temperature of heating, scope is between 250 ℃～260 ℃, thickness uniformity intensity is good everywhere to guarantee to mold the bigger complicated shape of deflection and to guarantee door shell, be 40～60 seconds heat time heating time, vacuumized 10～15 seconds, cooled off 80～150 seconds, above parameter is adjusted with the different in kind of sheet metal thickness and ABS and PE multilayer composite plastic plate, and the plastic door shell of forming has just obtained half-finished door shell and used in order to next step assembly unit through cutting edge;
(2) door shell and support cutting assembly carry out assembly unit and connection by welding or bonding method: when adopting welding method, be to guarantee door shell and support to transplant a cutting the carrying out smoothly of assembly welding sequence, need earlier with polyester tape with door shell with support and transplant a cutting that assembly is fixed uses ultrasonic bonding again; The welding of door shell and cutting assembly: at first template is fixed on the falsework of ultrasonic welding machine, partly penetrate the cutting of door shell assembly in the template, then with the supersonic welder left and right cutting of pressure welding respectively, change template, the horizontal upper and lower cutting of pressure welding respectively again, difference according to the welding distance, adjusted scope at 0.7～1 second time delay, area difference according to welding, the firm time and the time that touches were adjusted in 0.7～2 second, for guaranteeing firm welding, the material of transplanting a cutting should be selected the same or materials similar with door shell for use; If the employing adhering method needs earlier four root cuttings to be combined, bonding agent is coated on door shell and the cutting combination of components face, fix with polyester tape then and clamp with special tooling, need fix ten minutes and allow bonding agent solidify;
(3) door shell and transplant a cutting the assembly welding or bonding after, the door shell assembly of shape boxing; This assembly is put into door foaming tire counterdie, the door inner casing is put into foaming tire patrix, carry out the integral door foaming, for preventing to transplant a cutting especially horizontal cutting distortion when foaming, below transplanting a cutting, respectively put one and support foam block, leak material for avoiding around one door when foaming door inner casing simultaneously, door inner casing four limits are slightly downward-sloping, with horizontal sextant angle be 5～10 °.
Bonding agent in (2) step is instant drying adhesive or bicomponent structure glue.
For improving welding procedure and reliability, segmentation increases several on the solder side of cutting in (3) step
The fusion muscle that the wide 0.5mm of the long 1mm of 10mm is high will fuse the muscle fusing during welding, play to connect door
The effect of shell and cutting.
Also comprise (4) step, because of the general Men Tihou of refrigerator door, the thermal insulation layer shot is more, and the foaming curing time is answered corresponding prolongation, is 400～600 seconds.
Supporting the cutting assembly is the moulding of an integral body.
Advantage of the present invention:
1. realize that method of operating of the present invention is simple, reliable, be easy to realize producing in batches;
2. the machinery equipment that does not need complex and expensive needs a ultrasonic welding machine at most, about 20,000 yuans;
3. the method for the refrigerator door of the present invention's manufacturing is flexible strong, and face shaping can change at any time along with the variation of door shell, thereby adapts to the flexible and changeable market demand.
4. the refrigerator door appearance of the present invention's manufacturing is very good, fully demonstrates personal color, the individual sexual demand that is suitable for day by day increasing on the market.
Description of drawings
Fig. 1 is the structural representation of refrigerator door of the present invention;
Fig. 2 is the part section enlarged diagram of refrigerator door B of the present invention;
Fig. 3 is the cutaway view of Fig. 1 at the A-A face.
The specific embodiment
Refrigerator door of the present invention such as Fig. 1, Fig. 2, shown in Figure 3: comprise door shell 1, by lower support cutting 3-1, the left support cutting assembly 3 that cutting 3-4 constitutes, the thermal insulation layer 2 and an inner casing 4 of supporting of right support cutting 3-2, upper support cutting 3-3;
Its manufacture method may further comprise the steps:
1, door shell vacuum forming: door shell 1 is with bead cutter the excision of surplus limit to be made after the vacuum blow molding by the plastic plate of ABS and PE MULTILAYER COMPOSITE.Being ready to the thick door shell sheet material of suitable dimension 2～3mm puts on the vacuum forming machine, adjust each warm area temperature of heating, scope is between 250 ℃～260 ℃, to guarantee the molding bigger complicated shape of deflection (as: shapes such as attacker, ear) and thickness uniformity intensity is good to guarantee door shell everywhere.Be 40～60 seconds heat time heating time, vacuumized 10～15 seconds, cooled off 80～150 seconds, and above parameter can be adjusted with the different in kind of sheet metal thickness and ABS and PE multilayer composite plastic plate.The plastic door shell of forming has just obtained half-finished door shell and has used in order to next step assembly unit through cutting edge.
2, door shell 1 and support cutting assembly 3 carry out assembly unit and connection by welding or bonding method; When adopting welding method, be to guarantee door shell and support to transplant a cutting the carrying out smoothly of assembly welding sequence, need earlier with polyester tape with door shell with support and transplant a cutting that assembly is fixed uses ultrasonic bonding again.If the employing adhering method needs earlier four root cuttings to be combined, bonding agent is coated in door shell and transplants a cutting on the combination of components face (bonding agent can with instant drying adhesive or bicomponent structure glue such as 502,495,1406).Fix with polyester tape then and clamp, generally need fix ten minutes and allow bonding agent solidify with special tooling.
3, the welding of door shell and cutting assembly: at first template is fixed on the falsework of ultrasonic welding machine, the cutting of door shell assembly partly penetrates in the template, with the supersonic welder left and right cutting 2 of pressure welding and 4 respectively, change template then, the more horizontal upper and lower cutting 1 and 3 of pressure welding respectively.According to the difference of welding distance, adjusted scope at 0.7～1 second time delay, and according to the area difference of welding, the firm time and the time that touches were adjusted in 0.7～2 second, notices that weld time is unsuitable long, otherwise flash may occur.For guaranteeing firm welding, the material of transplanting a cutting should be selected the same or materials similar with door shell for use, as: ABS, HIPS.For improving welding procedure and reliability, segmentation increases the high fusion muscle of the wide 0.5mm of the long 1mm of several 10mm on the solder side of cutting, will fuse the muscle fusing during welding, plays the effect that connects door shell and cutting.
4, door shell and cutting assembly the welding or bonding after, the door shell assembly of shape boxing.This assembly is put into door foaming tire counterdie, and the door inner bag is put into foaming tire patrix, carries out the integral door foaming.For preventing to transplant a cutting especially horizontal cutting 1,3 distortion when foaming, below cutting 1,3, respectively put one and support foam block.Leak material for avoiding around one door when foaming door inner casing 4 simultaneously, door inner casing four limits are slightly downward-sloping, with horizontal sextant angle be 5～10 °.
5, because of the general Men Tihou of refrigerator door of the present invention, thermal insulation layer 2 shots are more, and the foaming curing time is answered corresponding prolongation, is 400～600 seconds.Simultaneously,, the air-vent of φ 0.5～φ 1 should be arranged on the projection of door inner bag and the loose piece, generally bore 5～10 air-vents on each long horizontal bar, bore an air-vent on the little loose piece for preventing to lose material.
Claims (5)
1, a kind of manufacture method of door of refrigerator body comprises door shell, supports the cutting assembly, thermal insulation layer, door inner casing; Support the cutting assembly and comprise upper and lower, left and right four root cuttings, its manufacture method may further comprise the steps:
(1) door shell vacuum forming: door shell is with bead cutter the excision of surplus limit to be made after the vacuum blow molding by the plastic plate of ABS and PE MULTILAYER COMPOSITE; Concrete grammar is, being ready to the thick door shell sheet material of suitable dimension 2～3mm puts on the vacuum forming machine, adjust each warm area temperature of heating, scope is between 250 ℃～260 ℃, thickness uniformity intensity is good everywhere to guarantee to mold the bigger complicated shape of deflection and to guarantee door shell, be 40～60 seconds heat time heating time, vacuumized 10～15 seconds, cooled off 80～150 seconds, above parameter is adjusted with the different in kind of sheet metal thickness and ABS and PE multilayer composite plastic plate, and the plastic door shell of forming has just obtained half-finished door shell and used in order to next step assembly unit through cutting edge;
(2) door shell and support cutting assembly carry out assembly unit and connection by welding or bonding method: when adopting welding method, be to guarantee door shell and support to transplant a cutting the carrying out smoothly of assembly welding sequence, need earlier with polyester tape with door shell with support and transplant a cutting that assembly is fixed uses ultrasonic bonding again; The welding of door shell and cutting assembly: at first template is fixed on the falsework of ultrasonic welding machine, partly penetrate the cutting of door shell assembly in the template, then with the supersonic welder left and right cutting of pressure welding respectively, change template, the horizontal upper and lower cutting of pressure welding respectively again, difference according to the welding distance, adjusted scope at 0.7～1 second time delay, area difference according to welding, the firm time and the time that touches were adjusted in 0.7～2 second, for guaranteeing firm welding, the material of transplanting a cutting should be selected the material same with door shell for use; If the employing adhering method needs earlier four root cuttings to be combined, bonding agent is coated on door shell and the cutting combination of components face, fix with polyester tape then and clamp with special tooling, need fix ten minutes and allow bonding agent solidify;
(3) door shell and transplant a cutting the assembly welding or bonding after, the door shell assembly of shape boxing; This assembly is put into door foaming tire counterdie, the door inner casing is put into foaming tire patrix, carry out the integral door foaming, for preventing to transplant a cutting distortion when foaming, below transplanting a cutting, respectively put one and support foam block, leak material for avoiding around one door when foaming door inner casing simultaneously, door inner casing four limits are slightly downward-sloping, with horizontal sextant angle be 5～10 °.
2, the manufacture method of door of refrigerator body according to claim 1 is characterized in that: the bonding agent in (2) step is instant drying adhesive or bicomponent structure glue.
3, the manufacture method of door of refrigerator body according to claim 1, it is characterized in that: be raising welding procedure and reliability in (2) step, segmentation increases the high fusion muscle of the wide 0.5mm of the long 1mm of several 10mm on the solder side of transplanting a cutting, to fuse the muscle fusing during welding, play the effect that connects door shell and cutting.
4, the manufacture method of door of refrigerator body according to claim 1 is characterized in that: also comprise (4) step, because of the general Men Tihou of refrigerator door, the thermal insulation layer shot is more, and the foaming curing time is answered corresponding prolongation, is 400～600 seconds.
5, the manufacture method of door of refrigerator body according to claim 1 is characterized in that: supporting the cutting assembly is the moulding of an integral body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310110247 CN1288407C (en) | 2003-12-25 | 2003-12-25 | Refrigerator door body and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310110247 CN1288407C (en) | 2003-12-25 | 2003-12-25 | Refrigerator door body and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1635319A CN1635319A (en) | 2005-07-06 |
| CN1288407C true CN1288407C (en) | 2006-12-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200310110247 Expired - Fee Related CN1288407C (en) | 2003-12-25 | 2003-12-25 | Refrigerator door body and manufacturing method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN1288407C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101131295B (en) * | 2006-08-22 | 2010-11-17 | 泰州乐金电子冷机有限公司 | Refrigerator door |
| KR101898487B1 (en) | 2010-10-28 | 2018-10-04 | 엘지전자 주식회사 | A refrigerator comprising a vaccum space |
| CN103913036A (en) * | 2013-01-08 | 2014-07-09 | 海尔集团公司 | Heat preservation component and forming method thereof |
| KR20140137108A (en) * | 2013-05-22 | 2014-12-02 | 엘지전자 주식회사 | refrigerator and manufacturing method thereof |
| CN106568262B (en) * | 2016-10-31 | 2019-07-02 | 青岛海尔股份有限公司 | Refrigerator |
| CN106885434B (en) * | 2017-03-17 | 2018-11-20 | 合肥华凌股份有限公司 | Refrigerator, inner container of icebox and its manufacturing method |
-
2003
- 2003-12-25 CN CN 200310110247 patent/CN1288407C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN1635319A (en) | 2005-07-06 |
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Granted publication date: 20061206 Termination date: 20201225 |