CN211993890U

CN211993890U - Plastic part and valve

Info

Publication number: CN211993890U
Application number: CN201922453519.6U
Authority: CN
Inventors: 乔基奥·基隆迪
Original assignee: Shanghai Sofima Automobile Filter Co ltd
Current assignee: Shanghai Sofima Automobile Filter Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-11-24
Anticipated expiration: 2029-12-30

Abstract

The utility model relates to a plastic part and valve. The plastic part includes: a metal liner having a first surface; a rubber member attached to the first surface during vulcanization processing; an injection molded element having a second surface; the adhered rubber and metal liner are bonded to the injection molded component during injection molding of the injection molded component, with the integral rubber and metal liner embedded in the second surface. The plastic part has the advantages of high dimensional precision and low modification cost.

Description

Plastic part and valve

Technical Field

The utility model relates to a plastic part and valve.

Background

At present, a method for arranging a rubber sealing member on an injection molded valve body part is to coat an adhesive on the surface of the injection molded valve body part, place a rubber member on the adhesive, and then place the valve body part and the rubber member together in a high temperature environment to perform vulcanization treatment on the rubber member, wherein the self property of the rubber member is changed during the vulcanization treatment, and the adhesive exerts an adhesive effect by virtue of the vulcanization treatment process to firmly adhere the rubber member to the surface of an injection molded element.

However, since the vulcanization process of rubber is performed at a high temperature for a long time, the size of the injection molded valve body component is easily largely deformed when the valve body component is subjected to a high-temperature vulcanization environment for a long time, so that the size and quality of the valve body component are difficult to control, and the assembly performance and the sealing performance of the valve body component are even affected. In addition, vulcanize the processing to the rubber spare on the working of plastics, the periphery of the rubber spare after the vulcanization processing can produce many burrs that are difficult to the clearance, and the clearance of clearance these burrs takes long and clearance cost is high.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need for a plastic component and valve that addresses at least one of the above issues.

In one aspect, a plastic part is provided, comprising: a metal liner having a first surface; a rubber member attached to the first surface during vulcanization processing; an injection molded element having a second surface; the adhered rubber and metal liner are bonded to the injection molded component during injection molding of the injection molded component, with the integral rubber and metal liner embedded in the second surface.

Further, the area of the joint area of the first surface for joining with the rubber member is smaller than the entire area of the first surface, and all edges of the joint area are separated from all edges of the first surface; the injection molding element is provided with a first concave part, the metal lining piece is embedded in the first concave part, and the first surface is flush with or protrudes out of the second surface.

Further, the rubber member is attached to the entire first surface; the metal lining piece is provided with a third surface parallel to the first surface, and the first surface is outwards protruded relative to the third surface; the injection molding element has a second recess in which the metal liner is embedded, and the third surface is flush with or protrudes from the second surface.

Further, the injection molding element has a third recess having a T-shaped cross section, the third recess including: a first transverse recess at the bottom of the third recess, and a first longitudinal recess extending from the first transverse recess to the second surface; the metal liner comprises a first portion embedded in the first transverse recess and a second portion embedded in the first longitudinal recess, a surface of the second portion facing away from the first portion forming a first surface; the first surface is flush with the second surface, or the first surface is lower than or protrudes from the second surface.

Further, the injection molding element has a fourth recess having a T-shaped cross section, the fourth recess including: a second transverse recess at the bottom of the fourth recess, and a second longitudinal recess extending from the second transverse recess to the second surface; the metal liner is embedded in the first transverse recess and the rubber member has a portion embedded in the second longitudinal recess and a portion extending beyond the second surface.

Further, the injection molded element has a bore, the second surface surrounding the bore.

Further, the rubber part is a sealing gasket, and the metal lining part is annular.

Further, the metal lining member is made of stainless steel or aluminum alloy.

Further, the plastic part is a valve core part.

In another aspect, a valve is provided having the plastic component described above.

The utility model provides a plastic part, the rubber spare is not directly attached to the component of moulding plastics, but additionally provides the metal lining spare, the rubber spare can be at first placed before combining with the component of moulding plastics on the metal lining spare that the coating has the adhesive then vulcanize the processing, after vulcanizing the processing, the rubber spare firmly adheres to together with the metal lining spare under the effect of adhesive, then place the two in the die cavity that is used for the mould of injection moulding injection element, then will mould plastics raw and other materials and pour into the die cavity with the shaping component of moulding plastics, the component of moulding plastics in injection moulding with attached to together metal lining spare, the rubber spare becomes integrative. Compared with the prior art, the metal lining part is more high-temperature resistant than a plastic part, large size deformation is not easy to occur even after a vulcanization process, the time required by vulcanization treatment on the rubber part on the metal lining part can be greatly shortened, and the vulcanized rubber part can have higher elasticity. The injection molding element is directly injection molded, high-temperature treatment is not needed to be borne subsequently, and the size and the quality of the injection molding element can be effectively ensured, so that the size and the quality of the injection molding element, the metal lining part and the rubber part which are combined into a whole can be ensured. In addition, vulcanize the processing to the rubber spare on metal material, when can guaranteeing the material performance of rubber spare, the periphery of rubber spare is difficult for producing the burr yet, and even produce burr or warp, it is also comparatively easy to carry out the modification to the rubber spare on metal material to the work of burr clearance has been reduced or even avoided, thereby has saved relevant clearance cost.

Drawings

FIG. 1 is a perspective view of a first embodiment of a plastic article of the invention with a rubber component and a metal liner attached together;

figure 2 shows a perspective view of an injection-molded element itself according to a first embodiment of the invention;

figure 3 shows a perspective view of a plastic part according to a first embodiment of the invention;

figure 4 shows a cross-sectional view of a plastic part according to a first embodiment of the invention;

figure 5 shows a cross-sectional view of a plastic part according to a second embodiment of the invention;

fig. 6 shows a cross-sectional view of a plastic part according to a third embodiment of the invention.

Fig. 7 shows a cross-sectional view of a plastic part according to a fourth embodiment of the invention.

Detailed Description

The structure of the plastic part and the manufacturing method thereof according to the first embodiment of the present invention will be described with reference to fig. 1 to 4. The plastic part comprises at least a rubber member 1, a metal liner 2 and an injection-moulded element 3.

Wherein the rubber 1 can be used as a seal, for example a sealing gasket. The rubber member 1 may be made of any rubber material suitable for sealing after a vulcanization process (i.e., a vulcanization treatment). The metal liner 2 may have various shapes as long as it can provide the first surface 21 for placing the rubber member 1 and be firmly attached to the rubber member 1 by an adhesive during the vulcanization process of the rubber member 1. The adhesive may be applied to the first surface 21 and/or the rubber member 1 to form an adhesive layer. The material of the metal lining element 2 may be, for example, any metal material that is resistant to high temperatures, preferably also resistant to corrosion, such as stainless steel, aluminium alloys, etc. The injection molded element 3 may be any injection molded element, the injection molded element 3 having a second surface 31. The rubber 1 and the metal liner 2, which are previously attached together, are joined to the injection-moulded element 3 during the injection-moulding of the injection-moulded element 3, so that the integrated rubber 1 and metal liner 2 are embedded in the second surface 31. Preferably, the outer surface 11 of the rubber member 1 is flush with the second surface 31 or protrudes from the second surface 31, so that the vulcanized rubber member 1 performs a sealing function at the second surface 31. Preferably, in this embodiment, the injection-molded element 3 has a hole 30, the second surface 31 is a plane surrounding the hole 30, the rubber member 1 is an annular seal ring, and the metal lining member 2 is, for example, an annular metal plate or a metal gasket. Preferably, the rubber member 1 is made of AEM, and the injection molding element 3 is made of PA66-GF 30.

The method of manufacturing the plastic part includes, for example: the rubber member 1 and the metal lining member 2 are provided, after the first surface 21 of the metal lining member 2 is subjected to a treatment such as degreasing, sand blasting, phosphating, baking, cooling, etc., an adhesive is applied to the first surface 21, the rubber member 1 is laminated on the adhesive, and then the laminated rubber member 1, adhesive and metal lining member 2 are subjected to a rubber vulcanization treatment process together, after which the rubber member 1 is firmly bonded to the first surface 21 of the metal lining member 2 by the adhesive, that is, the rubber member 1 and the metal lining member 2 are fixed as one body. The rubber member 1 and the metal liner member 2 fixed together are placed in a mold cavity for molding the injection molding element 3, and then an injection molding raw material is injected into the mold cavity to mold the injection molding element 3, the injection molding element 3 being integrated with the metal liner member 2 and the rubber member 1 at the same time as the injection molding, in other words, the rubber member 1 and the metal liner member 2 fixed together are embedded in the second surface 31 of the injection molding element 3.

Preferably, referring to fig. 4, in the present embodiment, the area of the joining region (not numbered) of the first surface 21 for joining with the rubber member 1 is smaller than the entire area of the first surface 21, and all edges of the joining region are separated from all edges of the first surface 21. Specifically, referring to fig. 1, the inner diameter of the annular rubber member 1 having a rectangular cross section is larger than the inner diameter of the annular metal lining member 2 having a rectangular cross section, and the outer diameter of the annular rubber member 1 is smaller than the outer diameter of the annular metal lining member 2. In addition, the injection-molded element 3 has a first recess 32, into which first recess 32 the metal liner 2 is embedded. Preferably, in this embodiment, the first surface 21 of the metal liner 2 is flush with the second surface 31 of the injection molded element 3. Therefore, the size of the rubber part 1 is convenient to control, and in addition, the injection molding material of the injection molding element 3 can be effectively isolated from the rubber part 1 in the injection molding process, so that the influence on the quality of the rubber part 1 caused by the contact of the injection molding material and the rubber part 1 is avoided. Of course, in other embodiments, the first surface 21 may be depressed or raised relative to the second surface 31.

Referring again to fig. 4, the injection molding element 3, the metal liner 2 and the rubber member 1 are integrated by an injection molding process, i.e. a complete plastic component 4 is formed, and the plastic component 4 can be, for example, a component part (e.g., a valve core part) of various valves (e.g., a bypass valve). Of course, the plastic part 4 is not limited to a valve part.

Fig. 5 shows a plastic component provided in a second embodiment of the present invention, which differs from the first embodiment described above mainly in the structure of the metal lining element 2. As shown, in this embodiment, the metal lining element 2 has a third surface 23 parallel to the first surface 21, the first surface 21 being outwardly convex with respect to the third surface 23. After passing through the vulcanization process, the rubber member 1 is adhered to the entire first surface 21. The injection-moulded element 3 has a second recess (not numbered in the figures) in which the metal liner 2 is embedded, the third surface 23 being flush with the second surface 31. In this way, by providing the stepped structure (the step is formed between the third surface 23 and the first surface 21) on the metal lining member 2, the first surface 21 for fixing the rubber member 1 protrudes from the third surface 23, which is further advantageous for operations for ensuring the size of the rubber member 1, such as modification of the rubber member 1. Of course, in other embodiments, the third surface 23 may be depressed or projected with respect to the second surface 31.

Fig. 6 shows a plastic part provided by a third embodiment of the present invention, which differs from the second embodiment described above mainly in the structure of the injection element 3. As shown, in this embodiment, the metal lining element 2 further has a fourth surface 24 parallel to the first surface 21, and the first surface 21 is outwardly protruded relative to the fourth surface 24. The injection element 3 has a third recess (not numbered) with a T-shaped cross-section, comprising: a first transverse recess 331 located at the bottom of the third recess, and a first longitudinal recess 332 extending from the first transverse recess 331 to the second surface 31. The metal liner 2 comprises a first portion (not numbered) embedded in the first transverse recess 331 and a second portion (not numbered) embedded in the first longitudinal recess 332, wherein a surface of the second portion facing away from the first portion forms the first surface 21, and the first surface 21 is flush with the second surface 31. After passing through the vulcanization process, the rubber member 1 is bonded to the entire first surface 21. After the injection molding process, i.e. after the injection molding element 3 is integrated with the metal liner 2 and the rubber member 1, the first surface 21 is flush with the second surface 31, and the fourth surface 24 is wrapped in the injection molding element 3. In this way, both the injection material of the injection element 3 is prevented from coming into contact with the rubber 1 and the injection element 3 and the metal lining element 2 are firmly bonded together. Of course, in other embodiments, the first surface 21 may also be convex with respect to the second surface 31 or may be lower than the second surface 31.

Fig. 7 shows a plastic component according to a fourth embodiment of the present invention, which is different from the third embodiment mainly in the structure of the metal lining element 2. As shown, in the present embodiment, the injection element 3 has a fourth recess (not numbered) having a T-shaped cross section, and the fourth recess includes: a second lateral recess 335 at the bottom of the fourth recess, and a second longitudinal recess 336 extending from the second lateral recess 335 to the second surface 31. The metal liner 2 is embedded in the second lateral recess 335, and the rubber member 1 has a portion embedded in the second longitudinal recess 336 and a portion extending beyond the second surface 31. Although the plastic part of the embodiment has the injection material contacting the rubber member 1 during the molding of the injection element 3, the contact time is short, and the performance of the rubber member 1 is not affected.

The embodiment of the utility model provides a plastic part, rubber 1 is not directly attached to the component of moulding plastics, but additionally provides metal lining spare 2, rubber 1 is at first placed on the metal lining spare 2 that has the adhesive before combining with the component of moulding plastics 3 and then vulcanizes the processing, after vulcanizing the processing, rubber 1 firmly bonds together with metal lining spare 2 under the effect of adhesive, then place the two in the die cavity of the mould that is used for injection moulding component 3, then will mould plastics raw and other materials and pour into the die cavity with shaping injection moulding component 3, injection moulding component 3 is in injection moulding with integrative metal lining spare 2, rubber 1 becomes integrative. Compared with the prior art, the metal lining part 2 is more high-temperature resistant than a plastic part, large size deformation is not easy to occur even after a vulcanization process, the time required by vulcanization treatment of the rubber part on the metal lining part can be greatly shortened, and the vulcanized rubber part can have higher capacity. The injection element 3 is directly injection molded, and the size and quality of the injection element 3 can be effectively ensured, so that the size and quality of the injection element 3, the metal lining member 2 and the rubber member 1 which are integrated into a whole can be ensured. In addition, vulcanize the processing to rubber spare 1 on metal material, when can guaranteeing the material performance of rubber spare 1, the periphery of rubber spare 1 is difficult for producing the burr, and even produce burr or warp, it is also comparatively easy to carry out the modification to rubber spare 1 on metal material to the work of burr clearance has been reduced or even avoided, thereby has saved relevant clearance cost.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A plastic part, comprising:

a metal liner (2) having a first surface (21);

a rubber member (1), said rubber member (1) being attached to said first surface (21) during a vulcanization process;

an injection-molded element (3) having a second surface (31); the rubber part (1) and the metal lining part (2) which are attached together are combined with the injection molding element (3) in the injection molding process of the injection molding element (3), and the rubber part (1) and the metal lining part (2) which are integrated are embedded in the second surface (31).

2. Plastic part according to claim 1,

the area of the joint area of the first surface (21) for the engagement with the rubber member (1) is smaller than the entire area of the first surface (21), and all edges of the joint area are separated from all edges of the first surface;

the injection-molded element (3) has a first recess (32), the metal insert (2) being embedded in the first recess (32), the first surface (21) being flush with the second surface (31) or protruding from the second surface (31).

3. A plastic part according to claim 1, characterized in that the rubber member (1) is attached over the entire first surface (21); said metal lining element (2) having a third surface (23) parallel to said first surface (21), said first surface (21) being convex outwards with respect to said third surface (23); the injection-molded element (3) has a second recess in which the metal insert (2) is embedded, the third surface (23) being flush with the second surface (31) or protruding from the second surface (31).

4. Plastic part according to claim 1,

the injection element (3) has a third recess with a T-shaped cross-section, comprising: a first transverse recess (331) at the bottom of the third recess, and a first longitudinal recess (332) extending from the first transverse recess (331) to the second surface (31);

the metal liner (2) comprises a first portion embedded in the first transverse recess (331) and a second portion embedded in the first longitudinal recess (332), a surface of the second portion facing away from the first portion forming the first surface (21);

the first surface (21) is level with the second surface (31), or the first surface (21) is lower than or higher than the second surface (31).

5. Plastic part according to claim 1,

the injection element (3) has a fourth recess with a T-shaped cross-section, comprising: a second lateral recess (335) at the bottom of the fourth recess, and a second longitudinal recess (336) extending from the second lateral recess (335) to the second surface (31);

the metal lining (2) is embedded in the second transverse recess (335), and the rubber (1) has a portion embedded in the second longitudinal recess (336) and a portion extending beyond the second surface (31).

6. Plastic part according to any of claims 1 to 5, characterized in that the injection-moulded element (3) has a bore (30), the second surface (31) surrounding the bore (30).

7. A plastic part according to any one of claims 1 to 5, characterized in that the rubber (1) is a sealing gasket and the metal liner (2) is ring-shaped.

8. A plastic part according to any of claims 1-5, characterized in that the metal lining element (2) is made of stainless steel or an aluminium alloy.

9. A plastic component according to any one of claims 1 to 5, wherein the plastic component is a spool component.

10. A valve, characterized in that it has a plastic part according to any one of claims 1 to 9.