CN1336531A - Manufacture of refrigerator door plank - Google Patents
Manufacture of refrigerator door plank Download PDFInfo
- Publication number
- CN1336531A CN1336531A CN 00117310 CN00117310A CN1336531A CN 1336531 A CN1336531 A CN 1336531A CN 00117310 CN00117310 CN 00117310 CN 00117310 A CN00117310 A CN 00117310A CN 1336531 A CN1336531 A CN 1336531A
- Authority
- CN
- China
- Prior art keywords
- refrigerator door
- mould
- manufacture method
- door plank
- plastic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
A manufacturing method for refrigerator door panel is as follows. The prepared shaped mould used in vacuum sucking moulding process is installed onto sucking moulding machine and preheated. Plastic light sheet is heated on vacuum sucking moulding machine. With the sheet being heated and air-blown, the having been heated and bubble-like deformed plastic light sheet is sucked by creation of vacuum that makes plastic light sheet taken shape according to the shape of surface of mould cavity. The invented manufacturing method makes production process simple, increases efficiency, and suits complex surface shape. Since the manufacturing process only needs common sucking moulding machine without need of big type of injection molding equipment, it lowers the cost of mould and total cost of door panel. Meanwhile, the preparing period for sucking plastic mould is shorter, therefore the period of developing production is shortened. Also, the thickness of wall of door faceplate can be diminished.
Description
The present invention relates to refrigerator door plank, relate in particular to a kind of refrigerator door plank forming and machining method.
The traditional diamond-making technique of refrigerator door plank is shaped for the sheet metal cold stamping at present.Because be subjected to the limitation of Sheet Metal Forming Technology itself, this method only adapts to the processing of the simple door face board of appearance and modeling.For the door face board of appearance and modeling complexity, be to be difficult to realize with the method for punch process.Perhaps, promptly enable to realize, also need through multi-step forming processes processing; So, die sinking quantity is many, and the mould total cost is higher, need take many pressing equipments simultaneously, many people's operations, and production efficiency is lower, and the cost of door face board is higher naturally.In addition, the metallic door panel not only exists and easily gets rusty and on-insulated deficiency, and the refrigerator door of being made up of itself and other working of plastics, and because of the shrinkage factor difference of metal and plastics is bigger, variations in temperature makes it produce bigger internal stress and easily produces distortion.
Along with the variation of the market demand, the appearance and modeling of refrigerator door plank becomes increasingly complex.Processing method for stamping originally can not adapt to this variation.So occurred the refrigerator door plank of injection molded in recent years.Compare with the door face board of drawing, the door face board of injection molded has solved the many problems of operation, not only adapts to complicated appearance and modeling, and door face board insulation non-corrosive.But its injection mold is very expensive, and needs to use large-scale injection-moulding device, and because the Shooting Technique requirement, the door face board wall thickness is bigger, and material usage is more, and therefore, the door face board cost is high, applies thereby limited it.
The object of the present invention is to provide a kind of refrigerator door plank forming and machining method, it both can overcome the moulding of metal sheet stamping formed door panel and simply reach the deficiency that manufacturing procedure is many, efficient is low, also can avoid the deficiency of injection molded door face board mould costliness and the large-scale injection-moulding device of needs, the refrigerator door plank cost is descended significantly.
The objective of the invention is to be achieved through the following technical solutions: a kind of manufacture method of refrigerator door plank, it is characterized in that, adopt the vacuum forming manufacturing process, by the vacuum forming shaping dies plastics plate is vacuumized plastic uptake by Packing Machine, described plastics plate is processed into along the mold cavity shaping surface.Concrete procedure comprises: material loading, and----frothing,--plastic uptake--squeezes the limit and--cools off--demoulding--pickup---trimming in heating.
Wherein, concrete moulding manufactures and designs the structure of vacuum forming finishing die according to refrigerator door plank, to guarantee the demoulding and the convenience of described product side cut and the fineness of die face of plastic uptake shaping back product simultaneously, thereby guarantee the surface smoothness of the described product in plastic uptake shaping back, the concavo-convex vestige on described product surface is minimized.
Wherein, described plastics plate is selected ABS, HIPS or other double-deck multilayer composite sheets, film coated plate for use.
Realize the manufacture method of a kind of refrigerator door plank of the present invention, its advantage is: 1) compare with the punching press door face board, the production of plastic uptake door face board only needs a Packing Machine and a cover adsorption mould.Die cost is lower; Have only a procedure, operating personnel greatly reduce, and production efficiency is higher.Therefore the overall cost of door face board is lower.The plastic uptake door face board adapts to complicated appearance and modeling.Plastic uptake door face board insulation non-corrosive.The shrinkage factor of plastic uptake door face board and other working of plastics of forming refrigerator door (as door lining etc.) is close even consistent, so door body internal stress is little during variations in temperature, and refrigerator door is difficult for producing distortion.Adopt the plastic uptake door face board, Refrigerator door structure and assembly technology are simplified greatly.This is because the plastic uptake door face board is a disposable integral to be shaped, and has saved parts such as the upper and lower location-plate of door body.As the door face board of certain BCD202 of company refrigerator, adopt the metal film coated plate cold stamping to be shaped and process, need six road stamping procedures altogether, six cover diel total costs are 47.5 ten thousand yuan, use totally six of the above punch press of 160t, hydraulic presses.In addition, the door body also needs upper and lower location-plate, and the structure of door body and assembling are comparatively complicated.The processing if the employing vacuum forming is shaped then only needs the logical Packing Machine of use one Daepori, and the plastics suction mould expense only is about 150,000 yuan, and a door body does not need location-plate, greatly simplification of the structure of door body and assembling.The overall cost of plastic uptake door face board will be significantly less than the overall cost of punching press door face board; 2) compare with injection molded door panel, the production of plastic uptake door face board only need be used common Packing Machine, do not need large-scale injection-moulding device, and Packing Machine is the off-the-shelf equipment of each refrigerator producer indispensability.The price of door face board plastics suction mould is significantly less than the price of injection mold.The preparatory period of plastics suction mould is shorter, can shorten product development cycle.The wall thickness of the comparable injection molded door panel of plastic uptake door face board wall thickness is saved material usage.As: the door face board of certain BCD242 of company refrigerator adopts injection molded processing, and the injection mold expense is 700,000 yuan, uses the 1300t injection machine.Adopting the vacuum forming processing back plastics suction mould expense that is shaped is 150,000 yuan, the existing common Packing Machine of use company, and the door face board weight that plastic uptake is shaped only is about 1/2nd of injection molded door panel weight, the overall cost of door face board reduces greatly.
In sum, the overall cost of plastic uptake door face board will be significantly less than the cost of injection molded door panel.
Below in conjunction with drawings and Examples, the present invention is further illustrated, in the accompanying drawing:
Fig. 1 is the structural representation of plastic uptake door face board of the present invention;
Fig. 2 is the product shaping sketch of plastic uptake door face board shown in Figure 1.
A kind of forming and machining method of refrigerator door plank adopts vacuum forming to become as shown in Figure 1 The shape method vacuumizes suction by the vacuum forming shaping dies to the plastics plate by Packing Machine Mould, concrete moulding manufactures and designs the structure of vacuum forming finishing die according to refrigerator door plank, When design, guarantee the demoulding of the rear product of plastic uptake shaping and the convenience that described product is cut edge, and Adding the fineness that guarantees die face man-hour, the rear described product thereby the assurance plastic uptake is shaped Surface smoothness is minimized the concavo-convex vestige on described product surface; Plastic plate Expect to select ABS, HIPS or other double-deck multilayer composite sheets, film coated plate.
Be described further the implementation process of the inventive method below in conjunction with embodiment:
1), manufactures and designs vacuum forming according to concrete refrigerator door plank design model
The shape mould.Must there be enough fineness on this mold cavity surface, to guarantee the shop front
The plate smooth in appearance satisfies requirement attractive in appearance, and, the taking out of mold cavity surface
Vacuum apertures must be enough little, and general diameter is less than 0.8 millimeter, otherwise
Can produce plastic uptake hole trace on the door face board surface; Aperture position and quantity are with panel
Structure and deformation extent are different and different everywhere; Also necessary on described adsorption mould
Be provided with and preheat pipeline, heating tube is arranged in die wall should be evenly to guarantee temperature
It is stable to spend all even mold temperature, because the mould temperature is low excessively, and then plate and mould
Profile can produce cold spot or internal stress at a touch, so that plastic cracks,
The mould temperature is too high, and plate may adhere on the die face, so that demoulding difficulty,
Even distortion.
2) select the Packing Machine of suitable ability for use, this Packing Machine should include blows and auxilliary the pressure
Actuating mechanism.
3) mould is installed on the Packing Machine and to mould carries out preheating.Mould and die preheating
Temperature is generally 40-60 ℃, specifically decides on the kind of plastics.4) with thickness be 1.5-4.5 millimeter (concrete thickness and used material and door face board shape
Shape, structurally associated) sheet plastic (as ABS, HIPS or other bilayers
Multilayer composite sheet, film coated plate etc.) put on the Packing Machine and heat, plate is reached
To the thermoelastic attitude.Herein, plastics reach thermoelastic attitude institute's calorific requirement or reach temperature
Scope is different different because of material, same plate everywhere temperature also because of deformation extent
Different and different, therefore, to plate heating-up temperature everywhere with the distortion degree
Different and temperature is regulated profiled member to obtain to some extent.5) by Packing Machine plate is blown, make plate produce the blister distortion.This
Process is called for short " frothing ", and purpose is to make it easy to next step plastic uptake be shaped.6) by mould plate is vacuumized plastic uptake by Packing Machine, make plate along mould
The tool mold cavity surface is shaped, and product shaping sketch as shown in Figure 2.Herein, inhale
Molded Rear Door wall thickness may be inhomogeneous, and average thickness with the 1-3 millimeter is
Suitable, but the mould design makes that the thickness for the treatment of crowded end place is less.7) then, Packing Machine is squeezed material at A place, the edge of shaping product by mould
Approach even squeeze off (otherwise the operation of manual trimming will be compared difficulty).8) Packing Machine makes it keep the shape of mould to the cooling of drying of product surface.9) the product demoulding.Before the product demoulding, the piece withdrawal earlier of loosing core around the mould,
Because of mould fineness is very high, for the ease of the demoulding, in the knockout course, mould
The profile spilehole also must be blown simultaneously.10) product is taken out from Packing Machine; And utilize manual method to incite somebody to action at product A place
Door face board 1 separates with rim charge 2.So obtain the shop front of structure shown in Figure 1
Plate.Said process can simply reduce: material loading--heats--frothing---plastic uptake
--squeeze the limit and--cool off--demoulding--pickup---trimming.
At present, as adopting ABS, HIPS plate plastics sucking moulding door face board,, also need follow-up surperficial spray treatment for obtaining better appearance.If adopt composite plate or film coated plate to carry out plastic uptake, its door face board surface need not be carried out surface treatment again.
A kind of refrigerator door plank forming and machining method of the present invention, die cost is low, and operation and operating personnel are few, and production efficiency is higher, saves material usage, has simplified processing technology, and product development cycle shortens, so the overall cost of door face board is lower.
Claims (10)
1, a kind of manufacture method of refrigerator door plank is characterized in that, may further comprise the steps: preparation vacuum forming finishing die; Described mould is installed on the vacuum plastic-absorbing machine and to mould carries out preheating; Sheet plastic placed on the vacuum plastic-absorbing machine heat; Heat the back to its air blowing at thin plate; By described vacuum forming finishing die the plastics plate that heats and blister is out of shape is vacuumized plastic uptake by vacuum plastic-absorbing machine, make described plastics plate along the mold cavity shaping surface.
According to the manufacture method of the described refrigerator door plank of claim 1, it is characterized in that 2, described preparation vacuum forming finishing die is to determine its structure according to the concrete moulding of refrigerator door plank.
3, according to the manufacture method of the described refrigerator door plank of claim 1, it is characterized in that, plastics sucking moulding spare is squeezed thin step along its moulding edge in described also comprising after vacuumizing plastics sucking moulding.
4, according to the manufacture method of the described refrigerator door plank of claim 3, it is characterized in that, after thin step is squeezed by described edge, also comprise the cooling of plastics sucking moulding spare and will it demoulding on the Packing Machine take out and its step of blocking along the crowded thin edges of moulding quilt.
According to the manufacture method of the described refrigerator door plank of claim 4, it is characterized in that 5, described plastics plate is that thickness is ABS, the HIPS thin plate of 1.5-4.5mm, also comprises the step of the door face board behind the moulding trimming being carried out surperficial spray treatment.
According to the manufacture method of the described refrigerator door plank of claim 4, it is characterized in that 6, described plastics plate is that thickness is double-deck multilayer composite sheet, the film coated plate of 1.5-4.5mm.
According to the manufacture method of the described refrigerator door plank of claim 1, it is characterized in that 7, described vacuum plastic-absorbing machine is 40-60 ℃ to the temperature range that mould carries out preheating.
According to the manufacture method of the described refrigerator door plank of claim 2, it is characterized in that 8, described mould is provided with the pipeline that preheats of even setting, surface, described mould shape chamber vacuumizes the diameter of aperture less than 0.8mm.
9, according to the manufacture method of the described refrigerator door plank of claim 2, it is characterized in that, before the demoulding, also comprise on the Packing Machine the step loosing core withdrawal and the die face spilehole is blown around the mould at described product.
10, a kind of manufacture method of refrigerator door plank is characterized in that, processing sequence is: material loading, and----frothing,--plastic uptake--squeezes the limit and--cools off--demoulding--pickup---trimming in heating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00117310 CN1116573C (en) | 2000-08-01 | 2000-08-01 | Manufacture of refrigerator door plank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00117310 CN1116573C (en) | 2000-08-01 | 2000-08-01 | Manufacture of refrigerator door plank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1336531A true CN1336531A (en) | 2002-02-20 |
| CN1116573C CN1116573C (en) | 2003-07-30 |
Family
ID=4586688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00117310 Expired - Fee Related CN1116573C (en) | 2000-08-01 | 2000-08-01 | Manufacture of refrigerator door plank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1116573C (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1987304B (en) * | 2005-12-23 | 2010-05-26 | 广东科龙电器股份有限公司 | Refrigerator door and method for producing door |
| CN102538354A (en) * | 2012-03-16 | 2012-07-04 | 海尔集团公司 | Door shell corner structure and refrigerator door body |
| CN102564021A (en) * | 2012-02-01 | 2012-07-11 | 济南宇翔制冷设备有限公司 | Refrigerator door and processing method thereof |
| CN102569824A (en) * | 2011-12-30 | 2012-07-11 | 黄权波 | Bipolar plate of integrated composite electrode, and manufacturing method and application thereof |
| WO2012174779A1 (en) * | 2011-06-24 | 2012-12-27 | 浙江普信电器股份有限公司 | Chest freezer using plastic inner container and plastic inner container manufacturing process thereof |
| CN104760269A (en) * | 2015-03-28 | 2015-07-08 | 合肥汇通控股股份有限公司 | Heat bend molding technology of plastic nameplate |
| CN104985888A (en) * | 2015-07-29 | 2015-10-21 | 浙江兆奕科技有限公司 | Thin-film composite glass fiber board 3D curved surface forming method |
| CN105291492A (en) * | 2015-11-26 | 2016-02-03 | 江阴协统汽车附件有限公司 | PUR, honeycomb core and co-extrusion plastic plate composite material and production method thereof |
| CN106679297A (en) * | 2017-01-05 | 2017-05-17 | 滁州美业机械制造有限公司 | Refrigerator door and punched part connecting structure |
| CN112810116A (en) * | 2020-12-29 | 2021-05-18 | 宁波长阳科技股份有限公司 | Plastic uptake processing method and product |
-
2000
- 2000-08-01 CN CN 00117310 patent/CN1116573C/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1987304B (en) * | 2005-12-23 | 2010-05-26 | 广东科龙电器股份有限公司 | Refrigerator door and method for producing door |
| WO2012174779A1 (en) * | 2011-06-24 | 2012-12-27 | 浙江普信电器股份有限公司 | Chest freezer using plastic inner container and plastic inner container manufacturing process thereof |
| CN102569824A (en) * | 2011-12-30 | 2012-07-11 | 黄权波 | Bipolar plate of integrated composite electrode, and manufacturing method and application thereof |
| CN102564021B (en) * | 2012-02-01 | 2013-10-30 | 济南宇翔制冷设备有限公司 | Refrigerator door and processing method thereof |
| CN102564021A (en) * | 2012-02-01 | 2012-07-11 | 济南宇翔制冷设备有限公司 | Refrigerator door and processing method thereof |
| CN102538354B (en) * | 2012-03-16 | 2016-12-14 | 海尔集团公司 | Shell corner structure and refrigerator door |
| CN102538354A (en) * | 2012-03-16 | 2012-07-04 | 海尔集团公司 | Door shell corner structure and refrigerator door body |
| CN104760269A (en) * | 2015-03-28 | 2015-07-08 | 合肥汇通控股股份有限公司 | Heat bend molding technology of plastic nameplate |
| CN104985888A (en) * | 2015-07-29 | 2015-10-21 | 浙江兆奕科技有限公司 | Thin-film composite glass fiber board 3D curved surface forming method |
| CN104985888B (en) * | 2015-07-29 | 2017-04-19 | 浙江兆奕科技有限公司 | Thin-film composite glass fiber board 3D curved surface forming method |
| CN105291492A (en) * | 2015-11-26 | 2016-02-03 | 江阴协统汽车附件有限公司 | PUR, honeycomb core and co-extrusion plastic plate composite material and production method thereof |
| CN106679297A (en) * | 2017-01-05 | 2017-05-17 | 滁州美业机械制造有限公司 | Refrigerator door and punched part connecting structure |
| CN106679297B (en) * | 2017-01-05 | 2019-07-19 | 滁州美业机械制造有限公司 | A kind of refrigerator doors and stamping parts connection structure |
| CN112810116A (en) * | 2020-12-29 | 2021-05-18 | 宁波长阳科技股份有限公司 | Plastic uptake processing method and product |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1116573C (en) | 2003-07-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4932857A (en) | Compression molding apparatus | |
| CN109736139B (en) | Forming equipment and method for pulp molding | |
| CN101804684A (en) | In-mould decorating injection moulding method and mould | |
| CN1116573C (en) | Manufacture of refrigerator door plank | |
| CN104842567A (en) | Equipment and method for manufacturing plastic housing from thermoplastic sheet | |
| CN106808650A (en) | Injection molding machine and surface decoration mold used for the same | |
| CN101028730A (en) | Draw-expanding composite forming method and apparatus for built-in piece injection membrane in mould | |
| CN112248484A (en) | Novel quick forming die of continuity carbon fiber automobile parts | |
| KR102045208B1 (en) | High speed blow molding method | |
| CN109137632B (en) | Mould for realizing back-off shape of pulp molding product and production method | |
| CN2797011Y (en) | One step shaping device of sealed heating gas pressure plastic film | |
| CN104260327A (en) | Plastic sucking forming process for rear television cover | |
| WO1990003256A1 (en) | Method and device for producing rigid products with high surface finish, especially plastic mouldings | |
| CN103624968A (en) | Plastic sheet molding process for automotive body or automobile interior decorative parts | |
| CN1923493A (en) | Manufacturing method of hollow air blow molding | |
| CN101513763A (en) | Processing procedures for cutting membrane in mold | |
| CN2363871Y (en) | Changeable mold cavity dual-purpose pneumatic moulding mould | |
| JPH10230521A (en) | Apparatus for producing decorated molded product | |
| JP3731811B2 (en) | Manufacturing method of synthetic resin molded products | |
| CN2093079U (en) | Moulding face plate prepressing die set | |
| CN210820879U (en) | Vacuum forming die for vehicle-mounted refrigerator inner container | |
| CN215320736U (en) | Vacuum forming die | |
| CN216941969U (en) | Anti-adhesion distiller's yeast forming die | |
| CN2451320Y (en) | Vacuum forming machine | |
| CN112026203B (en) | Method for manufacturing one-step formed door or window leaf |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |