Refrigerator door shell plastic suction mold and refrigerator

Abstract

According to the refrigerator door shell plastic uptake mold and the refrigerator, the plastic uptake mold comprises the flanging forming mold strips arranged on the periphery of the top of the mold cavity in a surrounding mode, the driving air cylinder sets used for pushing the flanging forming mold strips to move inwards or outwards are arranged outside the flanging forming mold strips, when the flanging forming mold strips are pushed inwards, the refrigerator door shell is pushed out of a flanging, and the flanging forming mold strips are pushed out of the flanging forming mold strips. When the flanging forming mold strip is pushed outwards, the refrigerator door shell with the flanging can be completely exposed in the mold cavity; the refrigerator comprises the refrigerator door shell formed by using the refrigerator door shell plastic suction mold. According to the refrigerator door shell, the refrigerator door shell and the turnup can be integrally formed in the plastic uptake process, the problem of gaps in the appearance is solved, and the refrigerator door shell has the advantages of being convenient to demould and high in yield.

Description

Technical Field

[0001] The utility model belongs to the technical field of refrigerator molds, and particularly relates to a refrigerator door shell thermoforming mold and a refrigerator. Background Art

[0002] In the prior art, as Figure 1 shown in the retro refrigerator (with large R corners, making the overall product look round visually), in order to meet the requirement of seamless front surface for its door shell, the manufacturing method of the traditional steel plate door structure is abandoned, and the overall injection molding manufacturing method is mostly selected.

[0003] The utility model patent application with publication number CN109696019A and name "A novel door shell structure adopting an overall thermoforming process" discloses a retro refrigerator door shell manufactured by a thermoforming method. However, the refrigerator door shell 1 manufactured by it is as Figure 3 shown, only has a groove 2. Although it meets the requirement of seamless front surface, for the flanging 3 on its rear side (as Figure 2 shown), it still needs to be spliced again, which cannot meet the effect of one-time molding of the refrigerator door shell, and still has problems of high manufacturing cost and gaps in appearance. Utility Model Content

[0004] The purpose of the utility model is to overcome the above-mentioned deficiencies of the prior art and provide a refrigerator door shell thermoforming mold capable of integrally forming a refrigerator door shell with a flanging structure.

[0005] The utility model also provides a refrigerator using the above-mentioned refrigerator door shell thermoforming mold.

[0006] The first aspect of the utility model provides a refrigerator door shell thermoforming mold, which includes a forming die base and a thermoforming mold body located on the forming die base. A mold cavity for forming a refrigerator door shell is provided in the forming die base. A moving mechanism for demolding is provided around the thermoforming mold body. The moving mechanism includes flanging forming mold strips surrounding the top of the mold cavity. Driving cylinder groups for pushing them inwards or outwards are provided outside the flanging forming mold strips. When the flanging forming mold strips are pushed inwards, the refrigerator door shell is pushed out to form a flanging. When the flanging forming mold strips are pushed outwards, the refrigerator door shell with a flanging can be completely exposed in the mold cavity.

[0007] The second aspect of the utility model provides a refrigerator, which includes a refrigerator door shell formed by using the above-mentioned refrigerator door shell thermoforming mold.

[0008] By using the retractable flanging forming mold strips, the utility model can realize the integral molding of the refrigerator door shell and the flanging during thermoforming. The flanging can be directly lapped on the refrigerator door liner, which not only avoids the obvious gap problem in appearance, but also has the advantages of convenient demolding, high finished product rate and high production efficiency. Description of the Drawings

[0009] Figure 1 is the front view of the retro refrigerator door shell in the background art;

[0010] Figure 2 is the sectional view of the retro refrigerator door shell in the background art;

[0011] Figure 3 is the schematic structural diagram of the retro refrigerator door shell manufactured by adopting the cited patent in the background art;

[0012] Figure 4 is the schematic structural diagram of the plastic suction mold for the refrigerator door shell in this embodiment;

[0013] Figure 5 is the schematic installation structure diagram of the moving mechanism in this embodiment;

[0014] Figure 6 is the schematic structural diagram of the forming die base in this embodiment;

[0015] Figure 7 is the sectional structural diagram of the forming die base in this embodiment (when the flanging forming die presses out the flanging);

[0016] Figure 8 is the sectional structural diagram of the forming die base in this embodiment (when the flanging forming die disengages from the flanging);

[0017] Figure 9 is the schematic assembly structure diagram of the refrigerator door shell, the inner liner and the door seal strip in this embodiment. Detailed implementation manners

[0018] Refer to Figure 4 , a plastic suction mold for a refrigerator door shell provided in this embodiment includes a forming die base 4 and a plastic suction mold body 5 located on the forming die base 4. A mold cavity 41 for forming the refrigerator door shell 1 is provided in the forming die base 4, and a forming die 51 adapted to the shape of the mold cavity 41 is provided in the plastic suction mold body 5. Refer to Figure 5 , a moving mechanism 6 for demolding is provided around the plastic suction mold body 5; Figure 2 In the process of demolding the refrigerator door shell with a flanging 3 in , if the flanging 3 is integrally formed with the refrigerator door shell 1, the flanging 3 will restrict the detachment of the forming die body in the plastic suction mold body 5. Therefore, it is difficult to integrally form the flanging 3 with the refrigerator door shell 1 during the plastic suction process of the refrigerator door shell 1 in the prior art. To solve this problem, the technical solution of this embodiment is that the top of the groove 2 of the refrigerator door shell 1 extends out of the mold cavity 41 all around. Refer to Figure 6 , the moving mechanism 6 includes a flanging forming die strip 61 surrounding the top of the mold cavity 41 all around, and a driving cylinder group 62 for pushing it to move inwards or outwards is provided outside the flanging forming die strip 61. Refer to Figure 7, when the flanging forming die bar 61 is pushed inward, the periphery of the top of the groove 2 of the refrigerator door shell 1 extending out of the die cavity 41 is pushed and pressed into a flange 3, see Figure 8 , when the flanging forming die bar 61 is pushed outward, the refrigerator door shell 1 with the flange 3 can be completely exposed in the die cavity 41.

[0019] Before thermoforming, the driving cylinder group 62 pushes each flanging forming die bar 61 in, and the flanging forming die bar 61 will push and press out the flange 3; after thermoforming, the driving cylinder group 62 pulls out each flanging forming die bar 61, so as not to affect the demolding of the formed refrigerator door shell with a flanging structure in the die cavity 41. See Figure 9 , and then the formed refrigerator door shell is placed into a foaming mold to form a refrigerator door with an inner liner 7, and then a door seal strip 8 is assembled to form an integral refrigerator door with no gap around.

[0020] In this embodiment, see Figure 7 , a door handle forming die bar 8 is arranged below the flanging forming die bar 61 on one side. The flanging forming die bar 61 and the door handle forming die bar 8 are integrally formed, and the corresponding driving cylinder group 62 drives the flanging forming die bar 61 and the door handle forming die bar 8 to push inward or outward together. The purpose is that when forming a refrigerator door shell with a door handle on one side, it can be formed together with the flange, saving the process.

[0021] In this embodiment, see Figure 8 , connecting blocks 9 are evenly distributed on the rear wall of the flanging forming die bar 61, and the other ends of the connecting blocks 9 are all connected to a push rod 10. The piston rods of the cylinders in the driving cylinder group 62 are all installed in the push rod 10. The purpose is to ensure the synchronous movement of each flanging forming die bar 61 and ensure the flatness of the flange.

[0022] This embodiment also provides a refrigerator, which includes a refrigerator door shell formed by using the above-mentioned refrigerator door shell thermoforming mold.

[0023] The above is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and retouches should also be regarded as the protection scope of the present invention.

Claims

1. A thermoforming mold for a refrigerator door shell, comprising a forming die base and a thermoforming die body located on the forming die base. A mold cavity for forming the refrigerator door shell is provided in the forming die base, and a moving mechanism for demolding is provided around the thermoforming die body. It is characterized in that: The moving mechanism includes flanging forming die strips surrounding the periphery of the top of the mold cavity. Drive cylinder groups for pushing them inward or outward are provided outside the flanging forming die strips. When the flanging forming die strips are pushed inward, the refrigerator door shell is pressed to form a flange. When the flanging forming die strips are pushed outward, the refrigerator door shell with a flange can be completely exposed in the mold cavity.

2. The plastic suction mold for the refrigerator door shell according to claim 1, characterized in that: A door handle forming die strip is provided below the flanging forming die strip on one side. The flanging forming die strip and the door handle forming die strip are integrally formed, and the corresponding drive cylinder group drives the flanging forming die strip and the door handle forming die strip to push inward or outward together.

3. The plastic suction mould for the refrigerator door shell according to claim 1 or 2, characterized in that: Connecting blocks are evenly distributed on the rear walls of the flanging forming die strips. The other ends of the connecting blocks are all connected to the push rod, and the piston rods of the cylinders in the drive cylinder group are all installed in the push rod.

4. A refrigerator using the thermoforming die for a refrigerator door shell according to any one of claims 1 to 3, characterized in that: It includes a refrigerator door shell formed by using the above-mentioned refrigerator door shell thermoforming mold.

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