CN215661468U - Lower guide rail structure for integral injection molding - Google Patents
Lower guide rail structure for integral injection molding Download PDFInfo
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- CN215661468U CN215661468U CN202121814257.2U CN202121814257U CN215661468U CN 215661468 U CN215661468 U CN 215661468U CN 202121814257 U CN202121814257 U CN 202121814257U CN 215661468 U CN215661468 U CN 215661468U
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- injection molding
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Abstract
The utility model discloses an integral injection molding lower guide rail structure, which comprises a lip edge structure, a bracket structure and a hard groove bottom; the support structure comprises a connecting side supporting structure, a closed side supporting structure and a closed connecting structure, wherein clamping parts are arranged at the bottoms of the connecting side supporting structure and the closed connecting structure, the bottom of a hard groove is of an I-shaped structure, the connecting side supporting structure and the closed connecting structure are respectively connected to the two sides of the bottom of the hard groove through the clamping parts, a lock catch structure is arranged on the side surface of the closed connecting structure, a lock hole structure matched with the lock catch structure is arranged on the closed side supporting structure, the closed side supporting structure is connected with the closed connecting structure in an overturning manner and forms a U-shaped groove structure with the connecting side supporting structure and the bottom of the hard groove in a combined manner, and the lock catch structure is clamped in the lock hole structure and is fixedly connected with the lock hole structure; the inner sides of the connecting side supporting structure and the closing side supporting structure are provided with lip edge structures. The utility model realizes the injection molding of all parts and improves the process precision of the parts.
Description
Technical Field
The utility model relates to an integral injection molding lower guide rail structure used in the field of vehicle sealing strips.
Background
The automobile lower guide rail sealing strip is arranged in an inner cavity of an automobile door metal plate below an automobile door waist line, and plays a role in auxiliary guiding and position balancing of automobile glass lifting. The main body of the plastic lower guide rail sealing strip part in the existing design is assembled by two parts, namely an EPDM (ethylene-propylene-diene monomer) or TPV (thermoplastic vulcanizate) co-extruded sealing strip and an injection-molded plastic support, and finally is installed in an inner cavity of a vehicle door sheet metal.
The design has the following defects and shortcomings:
1. the manufacturing process is relatively complex, an extrusion line is needed to extrude the section, and the plastic bracket is injection-molded by matching with an injection molding machine;
2. the working hour and the beat of the manufacturing link are correspondingly longer;
3. the light weight of parts is limited due to the complex structure;
4. the sealing strip of the extrusion process is lower than an injection molding part in manufacturing precision.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provides an integral injection molding lower guide rail structure which realizes the injection molding of all parts.
One technical scheme for achieving the above purpose is as follows: an integral injection molding lower guide rail structure comprises a lip edge structure, a bracket structure and a hard groove bottom;
the support structure comprises a connecting side supporting structure, a closed side supporting structure and a closed connecting structure, clamping parts are arranged at the bottoms of the connecting side supporting structure and the closed connecting structure, the bottom of the hard tank is of an I-shaped structure, the connecting side supporting structure and the closed connecting structure are respectively connected to the two sides of the bottom of the hard tank through the clamping parts, a lock catch structure is arranged on the side surface of the closed connecting structure, a lock hole structure matched with the lock catch structure is arranged on the closed side supporting structure, the closed side supporting structure is connected with the closed connecting structure in an overturning manner and forms a U-shaped groove structure with the connecting side supporting structure and the bottom of the hard tank in a combined manner, and at the moment, the lock catch structure is clamped in the lock hole structure and is fixedly connected with the lock hole structure; and lip structures are arranged on the inner sides of the connecting side supporting structure and the closing side supporting structure.
Further, the material of the bracket structure is PP 30GF, and the bracket structure is formed by injection molding.
Further, the material of the hard groove bottom is TPV with the hardness of 90 ShA.
Further, the lip structure is made of TPV with the hardness of 60-70 ShA.
Furthermore, a vehicle door sheet metal connecting structure is arranged on the side face of the connecting side supporting structure.
According to the integrally injection-molded lower guide rail structure, through structural design, the plastic structure and the sealing guide soft material structure of the support part in the guide rail sealing strip part are produced by adopting a mode of integrally injecting various materials, firstly, the support structure area of hard plastic is injected, and then the guide function area of TPV soft material is injected through a double-material or multi-material injection molding mode, so that the original complicated mode of installing a plastic injection molding part and an EPDM or TPV co-extrusion section is replaced. This structure includes the following advantage specifically:
1. due to the inherent advantages of the injection molding process, the complex modeling design can be carried out by matching with glass and vehicle door metal plates;
2. the machining precision of the injection molding part is higher than the extra tolerance caused by the extrusion process and the assembly;
3. the original supporting structure of the sealing strip is saved, and the light weight degree of parts is obviously improved;
4. the manufacturing capacity of the extrusion line is released, and the whole working hour and beat of manufacturing parts are shortened;
5. manpower is saved in the manufacturing process.
Drawings
FIG. 1 is a schematic structural view of an integrally injection molded lower track structure of the present invention;
fig. 2 is a schematic structural view of the integrally injection-molded lower guide rail structure after splicing.
Detailed Description
In order to better understand the technical solution of the present invention, the following detailed description is made by specific examples:
referring to fig. 1 and 2, the integral injection molded lower rail structure of the present invention includes a lip structure 5, a bracket structure and a rigid groove bottom 4.
The support structure comprises a connection side support structure 1, a closure side support structure 2 and a closure connection structure 3. The bottom of connecting side bearing structure 1 and closed connection structure 3 is equipped with joint portion, and stereoplasm tank bottom 4 is the I shape structure, and connecting side bearing structure 1 and closed connection structure 3 connect in the both sides of stereoplasm tank bottom 4 through joint portion respectively. The side of closed connection structure 3 is equipped with hasp structure 31, is equipped with the lockhole structure that matches with the hasp structure on the closed side bearing structure 2, and what closed side bearing structure 2 overturned is connected with closed connection structure 3, forms U type groove structure with the combination of joint side bearing structure 1 and stereoplasm tank bottom 4, and 31 joints of hasp structure are connected fixedly in the lockhole structure this moment. A lip structure 5 is arranged inside the connecting side support structure 1 and the closing side support structure 2. The side of the connecting side supporting structure 1 is provided with a door sheet metal connecting structure 11.
The integrally injection molded lower guide rail needs to be manufactured by the following steps:
step 1, injection molding a structural part of a bracket, wherein a PP 30GF material is usually selected;
step 3, performing injection molding on the hard groove bottom for three times, and selecting a TPV material with the hardness of about 90 ShA;
and 4, demolding and assembling after the injection molding process is finished, and changing the part into a U-shaped groove structure by matching with the locking structure through turning over the closed side supporting structure.
And 5, ultrasonically welding spots in the part to increase the strength of the U-shaped groove structure of the part and make the U-shaped structure not openable under the action of common external force.
It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that changes and modifications to the above described embodiments are within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.
Claims (5)
1. An integral injection molding lower guide rail structure comprises a lip edge structure and a bracket structure, and is characterized by also comprising a hard groove bottom;
the support structure comprises a connecting side supporting structure, a closed side supporting structure and a closed connecting structure, clamping parts are arranged at the bottoms of the connecting side supporting structure and the closed connecting structure, the bottom of the hard tank is of an I-shaped structure, the connecting side supporting structure and the closed connecting structure are respectively connected to the two sides of the bottom of the hard tank through the clamping parts, a lock catch structure is arranged on the side surface of the closed connecting structure, a lock hole structure matched with the lock catch structure is arranged on the closed side supporting structure, the closed side supporting structure is connected with the closed connecting structure in an overturning manner and forms a U-shaped groove structure with the connecting side supporting structure and the bottom of the hard tank in a combined manner, and at the moment, the lock catch structure is clamped in the lock hole structure and is fixedly connected with the lock hole structure; and lip structures are arranged on the inner sides of the connecting side supporting structure and the closing side supporting structure.
2. An integrally injection molded lower track structure according to claim 1 wherein the material of the support structure is PP 30GF, and is injection molded.
3. An integrally molded lower track structure according to claim 1 wherein said hard groove bottom material is TPV with a hardness of 90 ShA.
4. An integrally molded lower track structure according to claim 1 wherein said lip structure is constructed of a material selected from the group consisting of TPV having a durometer of 60-70 ShA.
5. The lower guide rail structure integrally molded through injection molding according to claim 1, wherein a door sheet metal connecting structure is arranged on the side surface of the connecting side supporting structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121814257.2U CN215661468U (en) | 2021-08-05 | 2021-08-05 | Lower guide rail structure for integral injection molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121814257.2U CN215661468U (en) | 2021-08-05 | 2021-08-05 | Lower guide rail structure for integral injection molding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215661468U true CN215661468U (en) | 2022-01-28 |
Family
ID=79983606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121814257.2U Active CN215661468U (en) | 2021-08-05 | 2021-08-05 | Lower guide rail structure for integral injection molding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215661468U (en) |
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2021
- 2021-08-05 CN CN202121814257.2U patent/CN215661468U/en active Active
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