Secondary demolding mold for refrigerator shelf

Abstract

The refrigerator shelf secondary demolding mold comprises a base, a lower mold plate, a push plate and an upper mold plate, a connecting block is arranged on the upper mold plate, a clamping block is connected to the push plate in a sliding mode, an elastic piece abutting against the clamping block is arranged on the push plate, a receding gap is formed between the clamping block and the connecting block, and a plurality of side mold bases in a surrounding shape are connected to the push plate in a sliding mode; the side die bases, the lower die plate and the upper die plate are spliced to form a forming cavity, and transmission pieces are arranged between the upper die plate and the side die bases. When the upper mold plate moves away from the lower mold plate, the upper mold plate drives the side mold bases to move away from the forming cavity through the transmission piece, so that the side mold bases loosen a product in the forming cavity, one-time demolding is achieved, gaps are generated between the side mold bases and the product, and the connecting block abuts against the clamping block to drive the push plate and the side mold bases to move away from the lower mold plate; the side mold base abuts against a product in the forming cavity to remove the product from the lower mold plate, secondary demolding is achieved, the situation that cracks and clamping openings are generated on the surface of the product is reduced, and the quality of the product is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the field of injection molds, in particular to a refrigerator shelf secondary demolding mold. BACKGROUND

[0002] In order to better utilize the space in a refrigerator, a shelf is arranged in the refrigerator for separating the space and placing articles, the shelf is generally formed by injection molding through an injection mold, and when the product is formed and needs to be demolded, a top rod is generally used to push the product out of the mold to realize demolding, since the product and the mold are tightly fitted, cracks, clamping openings and other defects are left on the surface of the product, the demand of high requirement customers cannot be met, and improvement is needed. CONTENT OF THE UTILITY MODEL

[0003] In order to reduce cracks, clamping openings and other defects on the surface of a refrigerator shelf injection molding product and improve product quality, the application provides a refrigerator shelf secondary demolding mold.

[0004] The refrigerator shelf secondary demolding mold provided by the application adopts the following technical scheme:

[0005] A refrigerator shelf secondary demolding mold comprises a base, a lower mold plate and an upper mold plate, the lower mold plate is arranged on the base, further comprises a push plate, the push plate is located between the lower mold plate and the upper mold plate and is slidingly connected to the lower mold plate, a connecting block is arranged on the upper mold plate, a clamping block is slidingly connected to the push plate, the clamping block slidingly extends out of or enters the push plate, an elastic element for abutting against the clamping block is arranged on the push plate, so that the clamping block has a tendency to extend out of the push plate, a clearance is formed between the clamping block and the connecting block, and the clearance is located on the side of the clamping block close to the base.

[0006] A plurality of side mold bases in a surrounding shape are slidingly connected to the push plate, the plurality of side mold bases, the lower mold plate and the upper mold plate are spliced to form a molding cavity, the side mold bases slidingly approach or move away from the molding cavity, a transmission element is arranged between the upper mold plate and the side mold bases, when the upper mold plate moves away from the push plate, the upper mold plate drives the side mold bases to move away from the molding cavity through the transmission element, and when the connecting block abuts against the clamping block, the product in the molding cavity and the projection of the side mold bases on the base overlap.

[0007] By adopting the technical scheme, when the product in the forming cavity is formed and needs to be demolded, the upper mold plate is controlled to move away from the lower mold plate, and the connecting block is driven to move by the upper mold plate. Since there is a gap between the clamping block and the connecting block, in this process, the upper mold plate drives the plurality of side mold bases to move away from the forming cavity through the transmission member, so that the plurality of side mold bases loosen the product in the forming cavity, one-time demolding is realized, a gap is generated between the side mold base and the product, and when the connecting block abuts against the clamping block, the upper mold plate drives the push plate and the plurality of side mold bases to move away from the lower mold plate through the connecting block abutting against the clamping block. The side mold base abuts against the product in the forming cavity to demold the product from the lower mold plate, thereby reducing the pulling between the product and the mold when the product is demolded from the lower mold plate, and thus reducing the cracks and clamping of the product surface, and improving the quality of the product.

[0008] Optionally, the lower mold plate is provided with an extension block, the extension block is provided with a guide surface, the guide surface is located on the side of the clamping block away from the lower mold plate, and the guide surface is inclined to the lower mold plate away from the push plate. The guide surface is used to abut against the clamping block.

[0009] By adopting the technical scheme, the guide surface is provided, when the connecting block pushes the clamping block to abut against the guide surface, the guide surface pushes the clamping block to move into the push plate, so that the clamping block and the connecting block are separated, and the push plate is reset under the action of gravity. The step of manually resetting the push plate is reduced, the production process is simplified, and the production efficiency is improved.

[0010] Optionally, the clamping block is provided with an inclined surface, the inclined surface is located on the side of the clamping block close to the guide surface, and the inclined surface is inclined to the lower mold plate away from the push plate.

[0011] By adopting the technical scheme, the inclined surface is provided, which is conducive to the guide surface pushing the clamping block to move into the push plate, and reducing the wear between the guide surface and the clamping block.

[0012] Optionally, the transmission member is connected with the upper mold plate, the transmission member is inclined to the lower mold plate away from the forming cavity, and the transmission member penetrates the side mold base.

[0013] By adopting the technical scheme, when the upper mold plate drives the transmission member to move away from the lower mold plate, the transmission member drives the side mold base to move away from the forming cavity by abutting against the side mold base.

[0014] In summary, the present application has at least one of the following beneficial technical effects:

[0015] 1. When the upper die plate moves away from the lower die plate, the upper die plate drives the plurality of side die seats to move away from the forming cavity through the transmission member, so that the plurality of side die seats loosen the product in the forming cavity, realizing one-time demolding, and a gap is generated between the side die seat and the product, until the connecting block abuts against the clamping block to drive the push plate and the plurality of side die seats to move away from the lower die plate, and the side die seat abuts against the product in the forming cavity to demold the product from the lower die plate, realizing two-time demolding, reducing the pulling between the product and the mold when the product is demolded from the lower die plate, thereby reducing the cracks and clamping of the product surface, and improving the quality of the product;

[0016] 2. By arranging the guide surface, when the connecting block pushes the clamping block to abut against the guide surface, the guide surface pushes the clamping block to move into the push plate, so that the clamping block and the connecting block are separated, and the push plate is reset under the action of gravity, thereby reducing the subsequent manual resetting step of the push plate, simplifying the production process, and being beneficial to improving the production efficiency;

[0017] 3. By arranging the inclined surface, the guide surface is beneficial to pushing the clamping block to move into the push plate, and reducing the abrasion between the guide surface and the clamping block. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole schematic view of the embodiment of the application.

[0019] Figure 2 It is an exploded structure view of the embodiment of the application, mainly showing the structure of the forming cavity and the side die seat.

[0020] Figure 3 It is an exploded structure view of the embodiment of the application, mainly showing the structure of the elastic member.

[0021] Figure 4 It is a structure view of the embodiment of the application at the extension block.

[0022] Figure 5 It is Figure 4 It is an enlarged view of the A part, mainly showing the structure of the gap.

[0023] Marked: 1, base; 2, lower die plate; 3, push plate; 31, mounting groove; 4, upper die plate; 5, connecting block; 51, gap; 6, clamping block; 7, gap; 8, elastic member; 9, side die seat; 10, transmission member; 11, extension block; 111, accommodating groove; 112, through hole; 12, guide surface; 13, inclined surface; 14, forming cavity. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings Figures 1-5 The application will be further described in detail.

[0025] The embodiment of the application discloses a refrigerator shelf two-time demolding mold. Referring to Figure 1The refrigerator shelf secondary demolding mold comprises a base 1, a lower mold plate 2, a push plate 3 and an upper mold plate 4, the lower mold plate 2 is located above the base 1 and is fixed on the base 1, the push plate 3 is located above the lower mold plate 2 and slides on the lower mold plate 2, and the upper mold plate 4 is located on the side, away from the lower mold plate 2, of the push plate 3 and is slidably connected with the lower mold plate 2, and the sliding direction of the upper mold plate 4 is parallel to the sliding direction of the push plate 3.

[0026] Referring to Figure 2 The upper mold plate 4 is fixed with four connecting blocks 5, the four connecting blocks 5 are located on the opposite sides of the upper mold plate 4 adjacent to the push plate 3 respectively, and the two connecting blocks 5 located on the same side of the upper mold plate 4 are arranged in a spaced manner along the horizontal direction, and the outer side wall of each connecting block 5 is provided with a clearance groove 51 penetrating through the connecting block 5 along the horizontal direction.

[0027] Referring to Figures 3-5 The outer side wall of the push plate 3 is provided with an installation groove 31, the number and position of the installation groove 31 correspond to the number and position of the clearance groove 51 one by one, and the installation groove 31 is in communication with the corresponding clearance groove 51, the push plate 3 is slidably connected with a clamping block 6, the number and position of the clamping block 6 correspond to the number and position of the installation groove 31 one by one, each clamping block 6 is slidably connected in the corresponding installation groove 31, and the clamping block 6 horizontally slides out of or into the push plate 3, when the clamping block 6 extends out of the push plate 3, a clearance gap 7 is formed between the clamping block 6 and the connecting block 5, and the clearance gap 7 is located on the side of the clamping block 6 close to the base 1.

[0028] Referring to Figures 3-5 The push plate 3 is fixed with an elastic member 8, and the elastic member 8 is located in the installation groove 31, in the embodiment, two elastic members 8 are arranged in each installation groove 31, each elastic member 8 is located between the clamping block 6 and the bottom of the installation groove 31, and the opposite ends of each elastic member 8 are fixedly connected with the clamping block 6 and the push plate 3 respectively, and the elastic member 8 abuts against the clamping block 6, so that the clamping block 6 has a tendency to extend out of the push plate 3, in the embodiment, the elastic member 8 is a spring.

[0029] Referring to Figures 3-5 The push plate 3 is slidably connected with a plurality of side mold bases 9, and the plurality of side mold bases 9 are in a surrounding shape, in the embodiment, four side mold bases 9 are arranged, the plurality of side mold bases 9, the lower mold plate 2 and the upper mold plate 4 are assembled to form a forming cavity 14, each side mold base 9 horizontally slides close to or away from the forming cavity 14, two transmission members 10 are arranged between the upper mold plate 4 and each side mold base 9, the two transmission members 10 are fixedly connected with the upper mold plate 4, each transmission member 10 is inclined away from the forming cavity 14 in the direction close to the lower mold plate 2, and the transmission member 10 penetrates through the side mold base 9 and is slidably connected with the side mold base 9, when the upper mold plate 4 moves away from the push plate 3, the upper mold plate 4 abuts against the side mold base 9 through the transmission member 10 to drive the side mold base 9 to move away from the forming cavity 14, in the embodiment, the transmission member 10 is a transmission block.

[0030] When the connecting block 5 abuts against the clamping block 6, the product in the forming cavity 14 and the projection of the side mold base 9 on the base 1 overlap.

[0031] Referring to Figures 3-5 The lower mold plate 2 is fixed with an extension block 11, the number and position of the extension block 11 correspond to the number and position of the connecting block 5, the extension block 11 is located on the outer side of the lower mold plate 2, the extension block 11 is provided with a receiving groove 111 and a through hole 112 on the outer side wall of the lower mold plate 2, the connecting block 5 is located in the receiving groove 111, the through hole 112 penetrates the extension block 11 along the penetration direction of the accommodation groove 51, and the through hole 112 is in communication with the receiving groove 111 and the corresponding accommodation groove 51, the extension block 11 is processed to form a guide surface 12, the guide surface 12 is located in the through hole 112 and on the side of the clamping block 6 away from the lower mold plate 2, and the guide surface 12 is inclined to the lower mold plate 2 in a direction away from the push plate 3, the outer side wall of the clamping block 6 is processed to form an inclined surface 13, the inclined surface 13 is located on the side of the clamping block 6 close to the guide surface 12, and the inclined surface 13 is inclined to the lower mold plate 2 in a direction away from the push plate 3, the inclination of the inclined surface 13 is the same as that of the guide surface 12, and the guide surface 12 is used to abut against the inclined surface 13 on the clamping block 6.

[0032] The implementation principle of the refrigerator shelf secondary demolding mold according to the embodiment of the application is as follows:

[0033] When the product in the forming cavity 14 is formed and needs to be demolded, the upper mold plate 4 is controlled to move away from the lower mold plate 2, and the upper mold plate 4 drives the connecting block 5 to move, because there is a gap 7 between the clamping block 6 and the connecting block 5, in this process, the upper mold plate 4 drives the plurality of side mold bases 9 to move away from the forming cavity 14 through the transmission member 10, so that the plurality of side mold bases 9 loosen the product in the forming cavity 14, and the first demolding is realized, a gap is generated between the side mold base 9 and the product, until the connecting block 5 abuts against the clamping block 6, the upper mold plate 4 drives the push plate 3 and the plurality of side mold bases 9 to move away from the lower mold plate 2 through the connecting block 5 abutting against the clamping block 6, the side mold base 9 abuts against the product in the forming cavity 14 to demold the product from the lower mold plate 2, and the secondary demolding is realized, so that the pulling between the product and the mold when the product is demolded from the lower mold plate 2 is reduced, and the cracks and clamping of the product surface are reduced, and the quality of the product is improved.

[0034] When the connecting block 5 pushes the clamping block 6 to the inclined surface 13 abutting against the guide surface 12, the guide surface 12 pushes the clamping block 6 to move into the push plate 3, so that the clamping block 6 and the connecting block 5 are separated, and the push plate 3 is reset under the action of gravity, so that the subsequent manual resetting step of the push plate 3 is reduced, the production process is simplified, and the production efficiency is improved.

[0035] The above are preferred embodiments of the application, which do not limit the protection scope of the application, therefore: any equivalent changes made on the structure, shape and principle of the application should be covered within the protection scope of the application.

Claims

1. A refrigerator shelf secondary demolding mold comprising a base (1), a lower mold plate (2) and an upper mold plate (4), the lower mold plate (2) being provided on the base (1), characterized in that: Also include the push plate (3), the push plate (3) is located between the lower die plate (2) and the upper die plate (4) and is connected to the lower die plate (2) on the sliding, the upper die plate (4) is provided with a connecting block (5), the push plate (3) is connected with a clamping block (6) on the sliding, the clamping block (6) slides out or into the push plate (3), the push plate (3) is provided with an elastic element (8) abutting the clamping block (6), so that the clamping block (6) has the tendency to extend out of the push plate (3), the clamping block (6) and the connecting block (5) form a clearance (7), the clearance (7) is located on the side of the clamping block (6) close to the base (1); The push plate (3) is connected with a plurality of side die seats (9) in a surrounding manner on the sliding, a plurality of side die seats (9) and the lower die plate (2) and the upper die plate (4) are spliced to form a forming cavity (14), the side die seat (9) slides close to or away from the forming cavity (14), the upper die plate (4) and the side die seat (9) are provided with a transmission member (10), when the upper die plate (4) moves away from the push plate (3), the upper die plate (4) drives the side die seat (9) to move away from the forming cavity (14) through the transmission member (10), when the connecting block (5) abuts the clamping block (6), the projection of the product in the forming cavity (14) and the side die seat (9) on the base (1) overlaps.

2. The refrigerator shelf secondary ejection mold of claim 1, wherein: The lower die plate (2) is provided with an extension block (11), the extension block (11) is provided with a guide surface (12), the guide surface (12) is located on the side of the clamping block (6) away from the lower die plate (2), and the guide surface (12) is inclined to the direction away from the push plate (3) and close to the lower die plate (2), the guide surface (12) is used for abutting the clamping block (6).

3. The refrigerator shelf secondary ejection mold of claim 2, wherein: The clamping block (6) is provided with an inclined surface (13), the inclined surface (13) is located on the side of the clamping block (6) close to the guide surface (12), and the inclined surface (13) is inclined to the direction away from the push plate (3) and close to the lower die plate (2).

4. The refrigerator shelf secondary ejection mold of claim 1, wherein: The transmission member (10) is connected with the upper die plate (4), the transmission member (10) is inclined to the direction close to the lower die plate (2) and away from the forming cavity (14), and the transmission member (10) penetrates the side die seat (9).

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