Three-color forming side cover

Abstract

The utility model relates to the technical field of injection molding, in particular to a three-color molding side cover, which comprises a base, a middle shell and an upper shell which are sequentially stacked along the height direction, the base comprises a base and a connecting seat, the middle shell is coated on the connecting seat, the upper shell is coated on the middle shell, and the upper shell is coated on the middle shell. And the middle shell or the upper shell is fixed on the base or the middle shell through thermoplastic. The problem that an adhesive needs to be treated to assist in bonding when an existing side cover is formed is effectively solved; according to the utility model, the substrate, the middle shell and the upper shell which are stacked in sequence are adopted, and the layered structure formed by the three parts can be subjected to three-shot molding in the same mold, so that compared with an existing multilayer structure which needs a plurality of molds and a plurality of working procedures for operation, the working procedures are reduced, and the next molding can be carried out without taking out a molded finished product; and the tightness between adjacent layers can be ensured through three-shot forming, and the problem that gaps exist in formed products due to poor bonding is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding, and particularly relates to a three-color molded side cover. Background Art

[0002] When plastic is injection molded, plastics of multiple colors are generally used for injection molding. Different colored plastics are fused together through an injection mold to form a product with rich colors and complex structures. The above injection molding process is overmolding injection molding.

[0003] For the existing side cover produced by overmolding injection molding, a processing procedure of brushing and treating an adhesive is required after the bottom shell is formed. The treated adhesive is used to fix the objects on the bottom shell. However, the above procedure will increase the product output efficiency and the product molding cycle. Summary of the Utility Model

[0004] In view of the above situation, to overcome the defects of the prior art, the purpose of the present utility model is to provide a three-color molded side cover, which effectively solves the problem that the existing side cover needs to use a treated adhesive for auxiliary bonding during molding.

[0005] The technical solution solved by the present utility model is that a three-color molded side cover includes a base, a middle shell and an upper shell which are sequentially stacked in the height direction. The base includes a base seat and a connecting seat. The middle shell covers the connecting seat, and the upper shell covers the middle shell. The middle shell or the upper shell is thermally fixed to the base or the middle shell;

[0006] The connecting seat includes a plurality of fixing parts and connecting parts divided axially along the base seat. The connecting parts are arranged between two adjacent fixing parts. Fixing grooves for fixing the middle shell are formed on the fixing parts, and fixing plates inserted into the fixing grooves are arranged inside the middle shell.

[0007] Preferably, a limiting support plate is further arranged on the fixing part, and a limiting auxiliary groove communicated with the fixing groove and used for accommodating the limiting support plate is formed on the middle shell.

[0008] … Preferably, the connection part between the connecting part and the fixing part is an inwardly concave arc.

[0009] Preferably, a first limiting groove and a second limiting groove for side cover installation are formed on the base seat.

[0010] Preferably, the middle shell is provided with an inwardly concave arc that fits the connecting seat.

[0011] Preferably, a boat-shaped bearing plane is arranged at the upper end of the middle shell, and a fixing surface that fits the bearing plane is arranged inside the upper shell.

[0012] The beneficial effects of the present utility model are as follows:

[0013] The utility model adopts a base, a middle shell and an upper shell which are stacked in sequence. The laminated structure composed of the above three parts can be formed by three-shot molding in the same mold. Compared with the existing multi-layer structure that requires multiple molds and multiple processes for operation, the number of processes is reduced and there is no need to take out the formed finished product for the next molding. Moreover, three-shot molding can ensure the tightness between adjacent layers and avoid the problem of gaps in the formed product caused by insufficient adhesion.

[0014] The utility model adopts a fixing groove and a fixing plate to increase the tightness between the middle shell and the base. The settings of the fixing groove, the fixing plate, the limiting auxiliary groove and the limiting support plate are used to prevent the misalignment between the middle shell and the base. The inwardly curved shape in the connecting seat reduces multiple edges and corners, enabling the connecting part in the connecting seat to be better formed. Description of the Drawings

[0015] Figure 1 is a three-dimensional structure schematic diagram of the utility model;

[0016] Figure 2 is a sectional right-view structure schematic diagram of the utility model;

[0017] Figure 3 is an exploded three-dimensional structure schematic diagram of the utility model;

[0018] Figure 4 is an exploded sectional front-view three-dimensional structure schematic diagram of the utility model;

[0019] Figure 5 is a three-dimensional structure schematic diagram of the base in the utility model;

[0020] Figure 6 is a three-dimensional structure schematic diagram of the middle shell in the utility model;

[0021] Figure 7 is a bottom three-dimensional structure schematic diagram of the middle shell in the utility model;

[0022] Figure 8 is a three-dimensional structure schematic diagram of the upper shell in the utility model;

[0023] Figure 9 is a bottom three-dimensional structure schematic diagram of the upper shell in the utility model;

[0024] In the figure, 1 - middle shell; 2 - upper shell; 3 - base; 4 - connecting seat; 5 - fixing part; 6 - connecting part; 7 - fixing groove; 8 - fixing plate; 9 - limiting support plate; 10 - limiting auxiliary groove; 11 - first limiting groove; 12 - second limiting groove; 13 - bearing plane; 14 - fixing surface. Detailed Embodiments

[0025] The following further details the specific embodiments of the utility model with reference to the accompanying drawings.

[0026] Refer to the attached instructions Figures 1-9 , a three-color molded side cover, including a base, a middle shell 1 and an upper shell 2 stacked in sequence along the height direction. The base, the middle shell 1 and the upper shell 2 are integrally formed by three times of injection molding with the same mold. During the molding process, the middle shell 1 and the base, and the upper shell 2 and the middle shell 1 can be firmly fixed together.

[0027] The middle shell 1 covers the base, and the upper shell 2 covers the middle shell 1. The middle shell 1 or the upper shell 2 is thermally fixed to the base or the middle shell 1. The middle shell 1 is fixedly connected to the base by thermal molding, and the upper shell 2 is fixedly connected to the middle shell 1 by thermal molding. Among them, the upper shell 2 is on the outermost side. The middle shell 1 is used to connect the upper shell 2 and the base, and the base is used to be installed on the corresponding equipment.

[0028] The base includes a base 3 and a connecting seat 4. The base 3 is directly connected to the equipment. The connecting seat 4 includes a plurality of fixing parts 5 and connecting parts 6 divided along the axis of the base 3. The connecting parts 6 are arranged between two adjacent fixing parts 5. The fixing parts 5 are used in cooperation with the middle shell 1, and through the fixing parts 5, the middle shell 1 can be better molded on the connecting seat 4;

[0029] The middle shell 1 completely covers the connecting seat 4. The connection between the connecting part 6 and the fixing part 5 is an inwardly shrinking arc. In the arc state, the middle shell 1 can better fit with the connecting seat 4, and at the same time, in the arc state, the plastic can be better extruded and molded.

[0030] The base 3 is provided with a first limiting groove 11 and a second limiting groove 12 for the installation of the side cover. The first limiting groove 11 is a straight groove used to limit and guide the base 3. The second limiting groove 12 is a special-shaped groove with an enlarged bottom, used to directly limit the base 3, and the base 3 is fixedly installed through the shape of the enlarged bottom of the special-shaped groove.

[0031] The fixing part 5 is provided with a fixing groove 7 for fixing the middle shell 1. The middle shell 1 is provided with a fixing plate 8 inserted into the fixing groove 7. The fixing plate 8 and the fixing groove 7 limit the middle shell 1 and the connecting seat 4. At the same time, through the fixing plate 8 and the fixing groove 7, the middle shell 1 is further fixed on the base, and the groove of the fixing groove 7 can also make the molten plastic directly molded in the fixing groove 7.

[0032] The fixing part 5 is also provided with a limiting support plate 9. The limiting support plate 9 is used to support and limit the middle shell 1, which further limits the middle shell 1 on the connecting seat 4. The middle shell 1 is provided with a limiting auxiliary groove 10 communicating with the fixing groove 7 for accommodating the limiting support plate 9. The limiting support plate 9 is inserted into the limiting auxiliary groove 10 to further limit the middle shell 1.

[0033] The middle shell 1 is provided with an arc that fits and converges with the connecting seat 4. The arc on the middle shell 1 is used to fit the middle shell 1 more closely. The upper end of the middle shell 1 is provided with a bearing plane 13 with both ends warping upward and in a boat shape. The fixed surface 14 that fits with the bearing plane 13 is arranged inside the upper shell 2. The boat-shaped bearing plane 13 is used to limit the upper shell 2. At the same time, after the fixed surface 14 inside the upper shell 2 fits with the boat-shaped bearing surface, the upper shell 2 can be better fixed with the middle shell 1.

[0034] The utility model adopts a base, a middle shell 1 and an upper shell 2 that are stacked in sequence. The layered structure composed of the above three parts can be formed by three-shot molding in the same mold. Compared with the existing multi-layer structure that requires multiple molds and multiple processes for operation, the process is reduced and there is no need to take out the formed finished product for the next molding. Moreover, three-shot molding can ensure the tightness between adjacent layers and avoid the problem of gaps in the formed product caused by insufficient adhesion.

[0035] The utility model adopts a fixed groove 7 and a fixing plate 8 to increase the tightness between the middle shell 1 and the base. The settings of the fixed groove 7, the fixing plate 8, the limit auxiliary groove 10 and the limit support plate 9 are used to prevent the misalignment between the middle shell 1 and the base. The inward arc in the connecting seat 4 reduces a plurality of edges and corners, so that the connecting portion 6 in the connecting seat 4 can be better formed.

Claims

1. A three-color molded side cover, characterized in that, It includes a base, a middle shell (1) and an upper shell (2) stacked in sequence along the height direction. The base includes a base seat (3) and a connecting seat (4). The middle shell (1) covers the connecting seat (4), and the upper shell (2) covers the middle shell (1). The middle shell (1) or the upper shell (2) is thermoplastically fixed to the base or the middle shell (1). The connecting seat (4) includes a plurality of fixing parts (5) and a connecting part (6) divided axially along the base seat (3). The connecting part (6) is arranged between two adjacent fixing parts (5). A fixing groove (7) for fixing the middle shell (1) is formed on the fixing part (5), and a fixing plate (8) inserted into the fixing groove (7) is arranged in the middle shell (1).

2. The three-color molded side cover according to claim 1, characterized in that: A limiting support plate (9) is further arranged on the fixing part (5), and a limiting auxiliary groove (10) communicated with the fixing groove (7) for accommodating the limiting support plate (9) is formed on the middle shell (1).

3. The three-color formed side cover according to claim 1, characterized in that: The connection part between the connecting part (6) and the fixing part (5) is an inwardly concave arc.

4. A three-color molded side cover according to claim 1, characterized in that: The base seat (3) is provided with a first limiting groove (11) and a second limiting groove (12) for side cover installation.

5. The three-color molded side cover according to claim 3, wherein: The middle shell (1) is provided with an inwardly concave arc that fits the connecting seat (4).

6. A three-color molded side cover according to claim 1, characterized in that: The upper end of the middle shell (1) is provided with a boat-shaped bearing plane (13), and a fixing surface (14) that fits the bearing plane (13) is arranged in the upper shell (2).

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