CN201833589U

CN201833589U - Plastic suction mold for refrigerator door liner

Info

Publication number: CN201833589U
Application number: CN2010205921024U
Authority: CN
Inventors: 王和升; 张学丰; 徐鹏
Original assignee: CHUZHOU KECHUANG MOULD MANUFACTURING Co Ltd
Current assignee: CHUZHOU KECHUANG MOULD MANUFACTURING Co Ltd
Priority date: 2010-11-04
Filing date: 2010-11-04
Publication date: 2011-05-18
Anticipated expiration: 2020-11-04

Abstract

The utility model discloses a plastic suction mold for a refrigerator door liner, which comprises a mold main body, a water heating system and a core pulling mechanism, wherein the mold main body is provided with an extended main body step, the main body step is positioned on a base, a door seal groove outward-flanging strip is fixed on the main body step, and a door seal groove water channel is drilled in the main body step; and the water heating system comprises a main body waterway system formed by a plurality of parallel main body water channels drilled in the mold main body, and a door seal groove waterway system formed by the door seal groove water channel. The plastic suction mold for the refrigerator door liner can ensure the temperature of the mold forming surface to be stable and uniform, the cast products are formed easily during vacuum forming, basically the cold mark on the surface of a workpiece is avoided, and the qualified rate is high; meanwhile, as the thickness of a cast plate is reduced, the defective products are reduced, and the material cost is lowered.

Description

The refrigerator door liner plastics suction mould

Technical field

The utility model relates to a kind of refrigerator door liner plastics suction mould.

Background technology

Reforming and opening up to the outside world, the productivity of China's refrigerator has had certain leap over 30 years, aspect much, all catch up with and surpass developed countries such as America and Europe, such as output just considerably beyond developed country, but the refrigerator production of China also only rests on the fabrication stage, also have a very long segment distance apart from independent research, autonomous Design, therefore made in China being converted into China's creation needs a long-term process.Refrigerator production comes from western developed country, China begins to introduce external advanced person's refrigerator production technology in the eighties, by digestion, absorption and transformation and autonomous innovation to foreign technology, the ability that has now possessed the production domesticization of refrigerator production technology, and to other countries' outlet refrigerator production technology and equipment.

Increasing along with fast development of national economy and national marcoeconomic regulation and control dynamics, the industrial structure of China is in rapid adjustment and transition period, the market advantage has embodied a concentrated expression of on the industry relevant with most of residents consumption patterns, the level upgrading that the consumption of resident forward is improved the quality of living.The electrical appliance industry that is associated therewith is the bigger industry of growth potential, to become the leading industry of the national economic development.The raising of the plastic uptake forming quality of refrigerator door liner has reduced the cost of refrigerator significantly, make the refrigerator market price that bigger decline space be arranged, could progressively make refrigerator become the product that rises that ordinary people can be consumed, to the pulling domestic demand, boost consumption, promote the growth of national economy to play certain impetus.The plastic uptake of refrigerator door liner is shaped and mainly relies on a suction door courage mold tool to finish, so my the refrigerator door liner plastics suction mould of company's research and development has the market space widely.

Last century, late nineteen eighties was to the early 1990s, began imitated refrigerator plastic uptake and foaming mould, along with manufacturing process improves, began replacing whole import mould to middle nineteen nineties, saved great amount of cost and time, for new product development has been created good condition.Along with the develop rapidly of refrigerator refrigeration industry, intensified competition, each enterprise requires more and more higher to product quality, and matching die requires also more and more tighter for it.For this product of refrigerator door liner, following problem often occurs: 1. surface local has cold trace, except that influencing product appearance, but do not influence whole serviceability, this product is all approved by most enterprises, because it is more to produce cold trace factor, existing mould factor also has the vacuum forming apparatus factor, is difficult to resolve to determine.2. the difficult moulding of door courage door sealing groove, during vacuum forming, material is attenuation severity in groove, pulls open easily, causes waste product.

Summary of the invention

The utility model is for solving the problems referred to above that the refrigerator door liner plastics suction mould is run in use in the prior art, it is uniform and stable to have proposed a kind of mould molding surface temperature, when vacuum forming, door courage door sealing groove easy-formation, the refrigerator door liner plastics suction mould of problem such as be not prone to attenuation, pull open.

Refrigerator door liner plastics suction mould of the present utility model, comprise die main body, base, water heating system, binder frame, deck plate and core-pulling mechanism, described die main body has extended main body step, and the main body step is positioned on the described base, on the main body step, be fixed with the sealing groove bar that turns up, be drilled with a sealing groove water channel in main body step inside; Described water heating system is included in die main body inside and is drilled with formed main body water circuit system of some main body water channels that are parallel to each other and the formed door of door sealing groove water channel sealing groove water circuit system.

Spacing 35-40 millimeter is good between every adjacent two of the described main body water channel, and the main body water channel is good apart from forming surface distance 15～25 millimeter.

It is good that described die main body material adopts the magnadure plate, as magnadure 5005 aluminium sheets, magnadure 5052 aluminium sheets, magnadure 5083 aluminium sheets, magnadure 5754 aluminium sheets, magnadure 5A02l aluminium sheet, magnadure 5A05 aluminium sheet etc. are wherein with magnadure plate 5052 the bests.And the die main body material all used foundry goods ZL105 or ZL401 in the past, because the quality of casting is when there was dampness in the air, easily produce casting flaws such as pore, sand holes, shrinkage porosite, scrap again casting again after finding in the process, sometimes one pair of mould will cause very big waste, and influence the delivery cycle through repeatedly casting, causing back order, is loss to client and manufacturing commercial city.Foundry goods ZL105 or ZL401 fragility are big, and for the thin place of some wall thickness (installation loose core piece place), thinnest part has only 1.5mm, is adding man-hour, cutter near the time easily cause the foundry goods fracture, cause main body to scrap.The thermal conductivity of material also influences moulding in addition, and main body is relatively poor in the surface of polished roughness.

As shown in Figure 3, the door sealing groove turnover panel of mould was fixed on the base 2a in the past, be embedded with one road water pipe under the mold base and provide its heating, because door sealing groove turnover panel and die main body 8a are separate, bar 7a is consistent with main body 8a temperature so be not easy to turn up, though base 2a place also is embedded with water pipe 6a in advance, but still can not guarantee the flowability of this place's material, pull open easily, cause waste product.And die main body 8a is a cast aluminium alloy material, during casting heating pipe 9a is nuzzled, together cast out, water pipe is formed by copper tube or stainless steel tube coiling, end water inlet, one brings out water, because imbed during the water pipe casting, so they can not accurately locate the about 8mm of while cast member Surface Machining surplus single face from the molded surface relative position, machining benchmark is also influential to its position, thereby can cause surperficial heat unbalanced.

The main body of refrigerator door liner plastics suction mould of the present utility model adopts the mode of boring water channel hole, water channel is from the forming surface constant distance, and door sealing groove place uses independent water route, can make mould molding surface temperature stable and uniform, thereby can be by control flow of inlet water size, the people omits height a bit for making the more difficult moulding place mold temperature of a sealing groove than mid portion, and it is mobile herein to have improved sheet material, make things convenient for moulding, be convenient to adjust this place's temperature, reduced waste product, institute's cast panel material thickness reduces, reduced material cost, simultaneously, the door sealing groove bar that turns up directly is fixed on the main body, is convenient to size adjusting, in addition, the material of main part of mould adopts the magnadure plate to reduce the die surface defective and the mold polish rear surface can reach minute surface, the product that makes casting when vacuum forming, easy-formation, the product surface does not have cold trace, product percent of pass height substantially.

Description of drawings

Fig. 1 is the structural representation of the utility model refrigerator door liner plastics suction mould;

Fig. 2 is the structure for amplifying schematic diagram of a-quadrant among Fig. 1;

Fig. 3 is the local structure for amplifying schematic diagram of current refrigerator door courage plastics suction mould.

The specific embodiment

As shown in Figure 1, refrigerator door liner plastics suction mould of the present utility model comprises die main body 8, base plate 1, base 2, water heating system, binder frame, deck plate and core-pulling mechanism, die main body 8 has extended main body step 3, and main body step 3 is positioned on the described base 2, on main body step 3, be fixed with the sealing groove bar 7 that turns up, linkage 4, bar 5 and the door sealing groove bar 7 common door sealing groove turnover panels of forming that turn up are drilled with a sealing groove water channel 6 in main body step 3 inside; Described water heating system is included in die main body 8 inside and is drilled with the some main body water channel that is parallel to each other 9 formed main body water circuit systems and 6 formed sealing groove water circuit systems of door sealing groove water channel; 35～40 millimeters of described main body water channel 9 every two adjacent spacings, main body water channel 9 is apart from 15～25 millimeters of forming surface distances; Described die main body material is a magnadure plate 5052.

As shown in Figure 1 and Figure 2, the utility model adopts and bore water channel hole on die main body 8, and door sealing groove periphery adopts independent water channel mode, water channel is about 20 millimeters apart from the forming surface distance, spacing is about the 35-40 millimeter between the water channel, and compares mould molding surface temperature stable and uniform with front mold when casting (main body pre-buried one road water pipe), material is difficult for producing cold trace on the surface when flowing, and can obtain higher product.Simultaneously, at die main body 8 periphery processing one main body steps 3, the door sealing groove bar 7 that turns up directly is fixed on the main body step 3, and one road door sealing groove water channel 6 is arranged separately on bar 7 lower body of turning up.This design bar of being convenient to turn up is consistent with body temperature, and is convenient to the notch size adjusting; The door sealing groove place water channel of more difficult moulding is connected separately with equipment, two-way water channel on the main body, and peripheral door sealing groove water channel and internal water channel are convenient to adjust door sealing groove place temperature.Can effectively solve the problem that the more difficult plastic uptake in a courage door sealing groove place is shaped like this, and die main body and the bar that turns up be fixed together, be convenient to notch size adjusting mold repair.Die main body 8 materials of the present utility model adopt magnadure plate 5052, compare with cast aluminium alloy in the past, do not have casting flaw, surface of polished can reach minute surface, good toughness, material thermal conductivity can be also good than cast aluminium alloy, thereby improved product surface quality greatly.

In refrigerator door liner plastics suction mould of the present utility model; structure shown in Fig. 2 only is the partial schematic diagram that is used to illustrate architectural feature of the present utility model; though do not have for the structure of other positions and to show; but according to design feature of the present utility model shown in Figure 1; after adopting conventional means to carry out corresponding structural modification as shown in Figure 1 other identical or similar positions; can obtain the product etc. of the refrigerating chamber of various forms of product of the present utility model such as different model size, varying number, these all should belong to protection domain of the present utility model.

Claims

1. refrigerator door liner plastics suction mould, comprise die main body (8), base plate (1), base (2), water heating system, binder frame, deck plate and core-pulling mechanism, it is characterized in that, described die main body (8) has extended main body step (3), and main body step (3) is positioned on the described base (2), on main body step (3), be fixed with the sealing groove bar (7) that turns up, be drilled with a sealing groove water channel (6) in main body step (3) inside; Described water heating system is included in die main body (8) inside and is drilled with some formed main body water circuit systems of main body water channel (9) that are parallel to each other and the formed door of door sealing groove water channel (6) sealing groove water circuit system.

2. the described refrigerator door liner plastics suction mould of claim 1 is characterized in that, 35～40 millimeters of every two the adjacent spacings of described main body water channel (9), and main body water channel (9) is apart from 15～25 millimeters of forming surface distances.

3. the described refrigerator door liner plastics suction mould of claim 1 is characterized in that, described die main body material is the magnadure plate.

4. the described refrigerator door liner plastics suction mould of claim 3 is characterized in that, described die main body material is a magnadure plate 5052.