A composite injection molding panel structure with extremely high performance and its production process

Abstract

The present application discloses a composite injection molding panel structure with extremely high performance, which relates to the technical field of injection molding panel processing, and comprises: a frame body and a sealing frame; the sealing frame is integrally arranged at the bottom end of the frame body, and is used to seal the gap between the frame body and the washing machine shell; wherein, a plurality of connectors are arranged on the surface of the frame body, and the connectors are used to connect the frame body and the washing machine shell, and a notch group is provided on the surface of the washing machine shell for the connectors to be inserted; the technical key point is that, by arranging a plurality of connectors between the frame body and the washing machine shell, the user can separate the frame body from the washing machine shell by rotating and adjusting each connector, avoiding the use of tools or screws, and the position of the frame body in the fitted state is extremely stable, thereby enhancing the flexibility of use of the entire injection molding panel structure.

Description

Technical Field

[0001] The invention belongs to the technical field of injection molding panel processing, and in particular relates to a composite injection molding panel structure with extremely high performance and a production process thereof. Background Art

[0002] Injection molding is a method of producing industrial products; products usually use rubber injection molding and plastic injection molding; injection molding can also be divided into injection molding and die casting; injection molding machine (referred to as injection machine or injection molding machine) is the main molding equipment that uses plastic molding molds to make plastic products of various shapes from thermoplastics or thermosetting materials. Injection molding is achieved through injection molding machines and molds.

[0003] The plastic injection molding is a method of making plastic products. The molten plastic is injected into the plastic product mold under pressure, and cooled and formed into various desired plastic parts. There are mechanical injection molding machines specially used for injection molding. The most commonly used plastics are polyethylene, polypropylene, ABS, PA, polystyrene, etc. After the processed composite injection molded panel is obtained, its outer surface needs to be treated for the second time to avoid the injection molded panel from always being in contact with the outside world and oxidation, thereby increasing the service life of the injection molded panel.

[0004] When performing secondary treatment on the outer surface of the injection molded panel, the traditional production process includes the following steps:

[0005] Plastic plating → degreasing → roughening → reduction → pre-impregnation → sensitization → activation → degumming → chemical plating → drying. A series of steps including acid copper plating → semi-bright nickel plating → bright nickel plating → nickel sealing → chrome plating can be added between chemical plating and drying.

[0006] However, during the use of traditional injection molding panels, it was found that the above technology has at least the following problems:

[0007] 1. When assembling the injection-molded panel on the corresponding washing machine shell, it is usually connected by snapping. However, after the snapping is installed, the user needs to use tools to separate the injection-molded panel and the washing machine shell. If screws are used for fixing, tools are also needed. After the screws are removed, the injection-molded panel and the washing machine shell can be separated, which is extremely inconvenient to use.

[0008] 2. After the user connects the injection-molded panel to the washing machine shell, the gap between them is prone to water vapor penetration. At the same time, when the injection-molded panel is initially placed on the washing machine shell, the position of the injection-molded panel needs to be aligned with the washing machine shell before subsequent connection processing can be performed. During the alignment process, if the connection hole has a position deviation, it will affect the subsequent connection processing of the injection-molded panel and the washing machine shell. Summary of the invention

[0009] Technical issues solved:

[0010] In view of the deficiencies in the prior art, the present invention provides a composite injection-molded panel structure with extremely high performance and a production process thereof. With the help of a sealing frame integrally connected to the frame body, the injection-molded panel structure formed at this time can be directly inserted into the inner wall of the washing machine shell, thereby preliminarily ensuring the stability of the position of the frame body. Then, a number of connecting parts are arranged between the frame body and the washing machine shell. The user can complete the separation of the frame body and the washing machine shell by rotating and adjusting each connecting part, thereby further ensuring the stability of the frame body after being connected to the washing machine shell, thereby solving the problems mentioned in the background technology.

[0011] Technical solution:

[0012] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0013] A composite injection-molded panel structure with extremely high performance comprises: a frame body and a sealing frame;

[0014] The sealing frame is integrally arranged at the bottom end of the frame body, and is used to seal the gap between the frame body and the washing machine shell; wherein, a plurality of connectors are arranged on the surface of the frame body, and the connectors are used to connect the frame body and the washing machine shell, and a notch group is opened on the surface of the washing machine shell for the connectors to be inserted.

[0015] In one possible implementation,

[0016] The sealing frame is divided into an upper frame part and a lower frame part; wherein the outer wall of the upper frame part is completely connected to the inner wall of the frame body; and a sealing gasket is bonded to the outer wall of the lower frame part.

[0017] The above-mentioned sealing frame is integrally connected to the frame body, and the injection-molded panel structure formed at this time can be directly inserted into the inner wall of the washing machine shell, which initially ensures the stability of the frame body position and also prevents water vapor from penetrating through the gap between the sealing frame and the washing machine shell.

[0018] In one possible implementation,

[0019] The connecting member comprises a sleeve and a rotating rod passing through the sleeve; wherein the sleeve is inserted into the four corners of the frame body and has an interference fit with the frame body; the rotating rod and the sleeve are connected by an elastic member; and the length of the sleeve is consistent with the thickness of the frame body.

[0020] In one possible implementation,

[0021] A screw block is fixedly arranged on the top end of the rotating rod, and the screw block is located on the upper surface of the frame body, and an insert is welded on one side of the bottom end of the rotating rod.

[0022] Among them, the slot group includes a slot and a retaining groove that pass through from top to bottom; the height of the slot is half the length of the part of the rotating rod extending out of the sleeve, and the specifications of the slot are consistent with the specifications of the rotating rod with an insert; the retaining groove is a cylindrical structure.

[0023] By setting a plurality of connecting pieces between the frame body and the washing machine shell, the user can separate the frame body from the washing machine shell by rotating and adjusting each connecting piece, avoiding the need for tools or screws. The position of the frame body in the fitted state is extremely stable, which enhances the flexibility of the entire injection molding panel structure.

[0024] A composite injection-molded panel structure with extremely high performance, the specific steps of producing the composite injection-molded panel structure are:

[0025] S1, molding,

[0026] The molten plastic substrate is fed into the mold cavity, and the burrs are removed after cooling to obtain the frame body and the sealing frame, and then the sealing frame is inserted into the inner wall of the frame body from bottom to top until the upper frame part is completely inserted into the frame body and then welded;

[0027] S2, coarsening reduction,

[0028] The frame body and the sealing frame integrated structure are sequentially sent into the roughening liquid tank and the reduction tank, and are washed with clean water before and after each entry into the tank, wherein the roughening liquid tank is filled with perchromic acid type roughening liquid, and the reduction tank is filled with hydrazine hydrate reducing agent;

[0029] S3, active dissolution,

[0030] The frame body and the sealing frame integrated structure are sequentially sent into the activation tank and the degumming tank, and are cleaned with clean water before and after each entry into the tank, wherein the activation tank is filled with silver nitrate activation solution, and the degumming tank is filled with hydrochloric acid degumming solution;

[0031] S4, chemical plating,

[0032] The integrated outer surface of the frame body and the sealing frame is directly electroplated to obtain a composite injection-molded panel covered with a plating layer;

[0033] After step S4, the composite injection-molded panel is inserted into the upper end of the washing machine shell, and the composite injection-molded panel and the washing machine shell are connected by rotating and adjusting each connecting piece.

[0034] Beneficial effects:

[0035] First, in this solution, by setting a number of connecting pieces between the frame body and the washing machine shell, the user can separate the frame body from the washing machine shell by rotating and adjusting each connecting piece, avoiding the need for tools or screws. The position of the frame body in the fitted state is extremely stable, thereby enhancing the use flexibility of the entire injection molding panel structure;

[0036] Second, in this solution, with the help of a sealing frame integrally connected to the frame body, the injection-molded panel structure formed at this time can be directly inserted into the inner wall of the washing machine shell, which initially ensures the stability of the position of the frame body, while also preventing water vapor from seeping in through the gap between the sealing frame and the washing machine shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 Is a schematic diagram of the overall structure of the present invention in an assembled state;

[0038] Figure 2 The present invention Figure 1 A magnified view of local structure A;

[0039] Figure 3 It is a schematic diagram of the connector and the notch assembly in the present invention in an assembled state;

[0040] Figure 4 It is a schematic diagram of the rotating rod structure of the present invention.

[0041] Figure numerals: 1, frame body; 2, sealing frame; 21, upper frame part; 22, lower frame part; 3, connecting piece; 4, insert piece; 5, notch group; 51, slot; 52, stop groove; 6, screw block; 7, sleeve; 8, rotating rod; 9, elastic part. DETAILED DESCRIPTION

[0042] The embodiment of the present application provides a composite injection-molded panel structure with extremely high performance and its production process. With the help of a sealing frame integrally connected to the frame body, the injection-molded panel structure formed at this time can be directly inserted into the inner wall of the washing machine shell, which initially ensures the stability of the position of the frame body, and then a number of connecting parts are arranged between the frame body and the washing machine shell. The user can complete the separation of the frame body and the washing machine shell by rotating and adjusting each connecting part, thereby further ensuring the stability of the frame body after being connected to the washing machine shell, thereby solving the problems in the prior art.

[0043] The technical solution in the embodiment of the present application is to solve the above problems, and the overall idea is as follows:

[0044] Embodiment 1:

[0045] This embodiment provides the specific structure of the entire injection molding panel, such as Figure 1 and 2As shown, a composite injection molding panel structure with extremely high performance includes: a frame body 1 and a sealing frame 2, wherein the frame body 1 and the sealing frame 2 are finally an integrated structure;

[0046] The sealing frame 2 is integrally arranged at the bottom end of the frame body 1, and is used to seal the gap between the frame body 1 and the washing machine shell; wherein, a plurality of connectors 3 are arranged on the surface of the frame body 1, and the connectors 3 are used to connect the frame body 1 and the washing machine shell, and a notch group 5 is opened on the surface of the washing machine shell for the connectors 3 to be inserted.

[0047] In some examples,

[0048] The sealing frame 2 is divided into an upper frame portion 21 and a lower frame portion 22 ; wherein the outer wall of the upper frame portion 21 is completely connected to the inner wall of the frame body 1 ; and a sealing gasket is bonded to the outer wall of the lower frame portion 22 .

[0049] When performing connection processing,

[0050] The staff needs to insert the sealing frame 2 into the inner wall of the frame body 1 from bottom to top until the dividing line between the upper and lower frame parts is flush with the lower surface of the frame body 1, and finally weld the upper frame part 21 and the frame body 1 to obtain an integrally formed composite injection molding panel structure.

[0051] When the sealing frame 2 is specifically assembled,

[0052] The staff can hold the frame body 1 and insert the sealing frame 2 from top to bottom into the inner wall of the washing machine shell until the lower frame portion 22 of the sealing frame 2 completely enters the washing machine shell, thereby achieving preliminary position fixation of the entire injection molding panel.

[0053] By adopting the above technical solution:

[0054] With the aid of the sealing frame 2 integrally connected to the frame body 1, the injection-molded panel structure formed at this time can be directly inserted into the inner wall of the washing machine shell, preliminarily ensuring the stability of the position of the frame body 1, while also preventing water vapor from penetrating through the gap between the sealing frame 2 and the washing machine shell.

[0055] In some examples,

[0056] The connecting member 3 includes a sleeve 7 and a rotating rod 8 passing through the sleeve 7; wherein the sleeve 7 is inserted into the four corners of the frame body 1 and has an interference fit with the frame body 1; the rotating rod 8 and the sleeve 7 are connected by setting an elastic member 9; the length of the sleeve 7 is consistent with the thickness of the frame body 1.

[0057] In the process of assembling the sealing frame 2, each connecting member 3 needs to be processed.

[0058] In the specific use of the connecting member 3,

[0059] The user needs to hold the twist block 6 and then rotate the rotating rod 8 to form Figure 3 The state shown, in which the elastic member 9 always generates a restoring force, so that the rotating rod 8 returns to its original state;

[0060] At the same time, the staff continues to press down the corresponding corner of the sealing frame 2, so that the rotating rod 8 with the insert 4 passes through the slot 51 and enters the retaining groove 52;

[0061] Finally, the lower surface of the frame body 1 fits against the washing machine casing, and the rotating rod 8 with the insert 4 rotates under the restoring force of the elastic member 9, so that the position of the insert 4 is offset from the retaining groove 52. At this time, the rotating rod 8 cannot move upward, thereby ensuring the stability of the connection between the frame body 1 and the washing machine casing.

[0062] When installing the connector 3,

[0063] The entire sleeve 7 is completely inserted into the frame body 1. Due to the interference fit between the frame body 1 and the sleeve 7, the position of the sleeve 7 after the insertion is ensured to be stable and unable to rotate.

[0064] In some examples,

[0065] A screw block 6 is fixedly provided at the top of the rotating rod 8, and the screw block 6 is located on the upper surface of the frame body 1. An insert 4 is welded to one side of the bottom end of the rotating rod 8. When the user holds the screw block 6 to rotate and adjust, the elastic member 9 (specifically a torsion spring) will generate an elastic restoring force to restore it to its original state.

[0066] The slot group 5 includes a slot 51 and a retaining groove 52 that pass through from top to bottom; wherein the height of the slot 51 is half the length of the portion of the rotating rod 8 extending out of the sleeve 7, and the specifications of the slot 51 are consistent with the specifications of the rotating rod 8 with the insert 4; the retaining groove 52 is a cylindrical structure.

[0067] By adopting the above technical solution:

[0068] A plurality of connectors 3 are provided between the frame body 1 and the washing machine shell. The user can separate the frame body 1 from the washing machine shell by rotating and adjusting each connector 3, without using tools or screws. The position of the frame body 1 in the fitted state is extremely stable, thereby enhancing the flexibility of use of the entire injection-molded panel structure.

[0069] Embodiment 2:

[0070] Based on Example 1, this example provides specific steps for producing and processing an injection-molded panel, a composite injection-molded panel structure with extremely high performance, and the specific steps for producing the composite injection-molded panel structure are:

[0071] S1, molding,

[0072] The molten plastic substrate is fed into the mold cavity, and the burrs are removed after cooling to obtain the frame body 1 and the sealing frame 2. The sealing frame 2 is then inserted into the inner wall of the frame body 1 from bottom to top until the upper frame portion 21 is completely inserted into the frame body 1 and then welded.

[0073] S2, coarsening reduction,

[0074] The frame body 1 and the sealing frame 2 are put into the roughening liquid tank and the reduction tank in turn, and are cleaned with clean water before and after entering the tank each time. The roughening liquid tank is filled with perchromic acid roughening liquid (roughening temperature 60-80°C, roughening time 5-10min), and the reduction tank is filled with hydrazine hydrate reducing agent (reduction time depends on the situation, generally within 30min);

[0075] The use of the above-mentioned high chromic acid type roughening liquid has a good effect on the maintenance, adjustment and control of the roughening tank liquid. Hydrazine hydrate reducing agent is used during the reduction treatment. The reducing agent here can be prepared by mixing hydrazine hydrate and ammonia water in a ratio of 5:1 to complete the deoxidation treatment of the material surface, and at the same time prevent the generation of scale (including iron scale and copper scale) in the reduction tank.

[0076] S3, active dissolution,

[0077] The integrated structure of the frame body 1 and the sealing frame 2 is sequentially sent into the activation tank and the degumming tank, and is cleaned with clean water before and after each entry into the tank, wherein the activation tank is filled with silver nitrate activation solution (the temperature for the activation treatment is room temperature, and the treatment time is 5-10 minutes), and the degumming tank is filled with hydrochloric acid degumming solution (the treatment is used for 5-10 minutes);

[0078] Specifically, other activation liquids may also be used in the above-mentioned active tank;

[0079] The silver nitrate activation solution used in this application is easy to purchase, and the one-time investment cost is low. It is combined with chemical copper plating and is suitable for pre-plating treatment of various plastics;

[0080] Palladium chloride activation solution can also be used. This solution is stable, simple to use, easy to adjust and maintain, and has catalytic activity on copper and nickel. Colloidal palladium activation solution can also be used: it is much more stable than the above two activation solutions, easy to maintain and use, and can improve the coating bonding strength for ABS plastic parts;

[0081] You can choose according to your needs.

[0082] S4, chemical plating,

[0083] The integrated outer surface of the frame body 1 and the sealing frame 2 is directly electroplated to obtain a composite injection-molded panel covered with a plating layer. (The clean water in the above steps S1-S3 can also be replaced with pure water)

[0084] After step S4, the composite injection-molded panel is inserted into the upper end of the washing machine housing, and the connection between the composite injection-molded panel and the washing machine housing is completed by rotating and adjusting each connecting member 3.

[0085] By adopting the above process, the traditional degreasing process is avoided, and subsequent processing can be carried out directly after being formed in the mold. Different activation solutions can be selected according to needs during activation treatment. In addition, direct copper replacement can be carried out in chemical plating, wherein the use time of the treatment is shortened, and the entire process is more stable and the cost is lower. A copper replacement solution is designed to form a copper replacement conductive film on the surface of the plastic substrate, so that the plastic substrate can be conductive, thereby improving the bonding strength between the electroplating layer and the plastic substrate.

[0086] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A composite injection-molded panel structure with extremely high performance, characterized in that: include: Frame body (1); A sealing frame (2) which is integrally arranged at the bottom end of the frame body (1) and is used to seal a gap between the frame body (1) and the outer shell of the washing machine; The surface of the frame body (1) is provided with a plurality of connecting members (3), and the connecting members (3) are used to connect the frame body (1) and the outer shell of the washing machine, and the surface of the outer shell of the washing machine is provided with a notch group (5) for the connecting members (3) to be inserted; The sealing frame (2) is divided into an upper frame portion (21) and a lower frame portion (22); Wherein, the outer wall of the upper frame portion (21) is completely connected to the inner wall of the frame body (1); A sealing gasket is bonded to the outer wall of the lower frame portion (22); The connecting member (3) comprises a sleeve (7) and a rotating rod (8) penetrating the sleeve (7); The sleeve (7) is inserted into the four corners of the frame body (1) and is interference fit with the frame body (1); The rotating rod (8) and the sleeve (7) are connected by means of an elastic member (9).

2. A composite injection-molded panel structure with extremely high performance as claimed in claim 1, characterized in that: The length of the sleeve (7) is consistent with the thickness of the frame body (1).

3. A composite injection-molded panel structure with extremely high performance as claimed in claim 1, characterized in that: A screw block (6) is fixedly provided at the top end of the rotating rod (8), and the screw block (6) is located on the upper surface of the frame body (1). An insert (4) is welded to one side of the bottom end of the rotating rod (8).

4. A composite injection-molded panel structure with extremely high performance as claimed in claim 1, characterized in that: The notch group (5) comprises a slot (51) and a stop groove (52) which are through-type vertically; The height of the slot (51) is half the length of the portion of the rotating rod (8) extending out of the sleeve (7), and the specifications of the slot (51) are consistent with those of the rotating rod (8) with the insert (4); The retaining groove (52) is a cylindrical structure.

5. A composite injection-molded panel structure with extremely high performance as claimed in claim 1, characterized in that: The specific steps for producing the composite injection molded panel structure are: S1, molding, The molten plastic substrate is fed into the mold cavity, and after cooling, the burrs are removed to obtain a frame body (1) and a sealing frame (2), and then the sealing frame (2) is inserted from bottom to top into the inner wall of the frame body (1) until the upper frame portion (21) is completely inserted into the frame body (1) and then welded; S2, coarsening and reduction, The frame body (1) and the sealing frame (2) are sequentially placed in a roughening liquid tank and a reduction tank, and are cleaned with clean water before and after each entry into the tank, wherein the roughening liquid tank is filled with a perchromic acid roughening liquid, and the reduction tank is filled with a hydrazine hydrate reducing agent; S3, active dissolution, The frame body (1) and the sealing frame (2) are placed in an integrated structure into an activation tank and a degumming tank in sequence, and are cleaned with clean water before and after each entry into the tank, wherein the activation tank is filled with silver nitrate activation solution, and the degumming tank is filled with hydrochloric acid degumming solution; S4, chemical plating, By directly performing electroplating treatment on the integral outer surfaces of the frame body (1) and the sealing frame (2), a composite injection-molded panel covered with a plating layer can be obtained.

6. A composite injection-molded panel structure with extremely high performance as claimed in claim 5, characterized in that: After step S4, the composite injection-molded panel is inserted into the upper end of the washing machine shell, and the connection between the composite injection-molded panel and the washing machine shell is completed by rotating and adjusting each connecting piece (3).

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