CN212148368U

CN212148368U - Novel door sealing strip vulcanizes angle core pulling groove structure

Info

Publication number: CN212148368U
Application number: CN201920879206.4U
Authority: CN
Inventors: 邱国文; 罗罡; 薛士栋; 何冠霖
Original assignee: FAW Group Corp
Current assignee: FAW Group Corp
Priority date: 2019-06-12
Filing date: 2019-06-12
Publication date: 2020-12-15
Anticipated expiration: 2029-06-12

Abstract

The novel door sealing strip vulcanization joint angle core drawing groove structure has the advantages that different sections are adopted at different positions due to different compression modes, and transition connection structures of different sections are vulcanization joint angles; in order to meet the demolding requirement of the vulcanization joint angle, the bottom of the joint angle is provided with a core pulling groove structure; the vulcanization joint angle position of the sealing strip is a sealed weak position, foam or adhesive tape needs to be adhered to the bottom of the joint angle, and the core pulling groove needs to be adhered in advance; the traditional bonding direction of core pulling groove structure is horizontal bonding, and horizontal bonding can transversely pull the sealing strip, leads to bonding face necking down, sealing strip bubble type to become flat. The utility model discloses optimize pulling out core groove structure, pull out core groove structure and adopt the overlap joint design, pull out the core groove and carry out vertical bonding on the direction of height of connecing the angle bubble type. The utility model has the advantages that: the sealing strip has good assembly quality, high matching precision with other parts, good manufacturability, easy production, reasonable lap joint, stability and reliability.

Description

Novel door sealing strip vulcanizes angle core pulling groove structure

Technical Field

The utility model relates to a novel door sealing strip vulcanizes connecing angle and pulls out core groove structure belongs to automobile parts and makes the field.

Background

With the increasing demands of consumers on the quality of automobiles, the demands on the sealing of vehicles are also increasing. The stable sealing strip bubble type not only guarantees the vehicle sealing performance, but also guarantees the accurate matching with other parts. The door sealing strip is the first sealing strip installed on the door, and the door sealing strip usually has multiple bubble types, and in different bubble type connection areas, a vulcanization joint angle is designed. The problem that the vulcanization angle is easy to occur is that: after the corner connection and demoulding, two ends are butted with the equal sections, so that the foam is easy to shrink, and the appearance and the sealing performance are affected.

Disclosure of Invention

The sealing strip of the car door is compressed with the side wall metal plate after the car door is closed, so that the sealing and sound insulation effects are achieved. Because of the difference of the compression modes, the sealing strip adopts different section structures at different positions, the transitional connection structure with different sections is the vulcanization joint angle, and the vulcanization joint angle is formed by injecting EPDM in a mould. After the vulcanization angle is injection-molded, demolding is needed from a mold, and a core pulling groove structure is designed at the bottom of the angle, so that a core in the mold can be conveniently pulled out. The vulcanization joint angle position of the sealing strip is a weak position for sealing, foam or adhesive tape needs to be adhered to the bottom of the joint angle, and the core pulling groove needs to be adhered in advance before the foam or the adhesive tape is adhered to the bottom of the joint angle. Traditional door sealing strip vulcanizes and connects angle to pull out core groove structural design, when pulling out the core groove and bond in advance, the bonding direction is horizontal bonding, and horizontal bonding can transversely pull the sealing strip, leads to connecing angle bottom necking down, sealing strip bubble type to become flat, with interior trim matching clearance grow, with the compression variation scheduling problem of side wall, the outward appearance and the sealing performance that connect the angle department all can descend. The to-be-solved technical problem of the utility model is that the sealing strip vulcanizes and connects the angle drawing of patterns back, pulls out horizontal bonding of core groove structure and leads to the bubble type to become flat, influences the problem that connects angle outward appearance, sealing performance and match with other parts.

The technical scheme of the utility model: the core pulling groove is structurally optimized, the core pulling groove is designed in an overlapping structure, a serrated overlapping structure is designed, and after the core pulling groove is subjected to corner connection demolding, vertical bonding of the core pulling groove in the height direction of the corner connection bubble type is guaranteed.

This structural innovation's adoption overlap joint formula design, also reserved the space for the sealing strip connects angle bottom design buckle like this, vulcanizes and connects angle to pull out the core groove and increase the buckle, is favorable to solving the sealing strip and vulcanizes the matching problem that connects angle and panel beating and interior trim backplate.

The utility model has the advantages that: the sealing strip has good assembly quality, high matching precision with other parts, good manufacturability, easy production, reasonable lap joint, stability and reliability.

Drawings

FIG. 1(a) shows the vulcanized corner distribution of the sealing strip of the front door;

FIG. 1(b) shows the distribution of the vulcanization joint angle of the sealing strip of the rear door;

FIG. 2(a) is a partial view of a vulcanized corner joint of the door weather strip at position (7);

FIG. 2(b) is a partial view of the bottom mounting surface of the vulcanised fillet of the door weatherstrip in position (7);

FIG. 3 is a view showing a vulcanization joint angle bottom bonding material of a door weather strip;

FIG. 4 is a sectional view of a conventional door weatherstrip vulcanization angle coring groove in position (2);

FIG. 5 is a sectional structure of a novel door weather strip vulcanization angle core pulling groove at position (2);

wherein: 1-7, sealing strip vulcanization angle connecting position, 8, vulcanization angle connecting core pulling groove structure, 9, bonding material, 10, transverse bonding, 11 and vertical bonding.

Detailed Description

In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.

The door weather strip vulcanization corner positions (1) - (7) shown in fig. 1(a) (b) are distributed. The sealing strip of the car door is compressed with the side wall metal plate after the car door is closed, so that the sealing and sound insulation effects are achieved. Due to the difference of compression modes, the sealing strip adopts different section structures at different positions, the transitional connection structure with different section structures is the vulcanization joint angle, the vulcanization joint angle position of the door sealing strip is marked in figure 1, and the vulcanization joint angle is formed by injecting EPDM in a mould.

A partial view of the door weatherstrip cure corner and bottom mounting surface at position (7) as shown in fig. 2(a) (b); after the vulcanization angle joint is injection-molded, the vulcanization angle joint needs to be demoulded from a mold, so a core pulling groove structure needs to be designed at the bottom of the angle joint, and the core pulling groove structure (8) is used for facilitating the core in the mold to be pulled out.

Vulcanizing the corner bottom adhesive material for the door weather strip as shown in FIG. 3; the vulcanization corner joint position of the sealing strip is usually a sealed weak position, the corner joint is bonded with a vehicle door structure through a bonding material (9), foam or an adhesive tape is arranged at the bottom of the corner joint, and a core pulling groove needs to be bonded in advance before the sealing strip is assembled.

As shown in figure 4 position (2) traditional door sealing strip vulcanizes and connects angle and pulls out core groove section structure, when pulling out core groove and bonding in advance, core groove structure bonding direction is horizontal bonding (10), and horizontal bonding (10) can transversely pull the sealing strip, leads to the sealing strip bubble type to become flat, and with the interior trim matching gap grow, with the compression variation of side wall, the outward appearance and the sealing performance of connecing the angle department all can descend.

As shown in figure 5, the novel car door sealing strip vulcanization angle connection core pulling groove section structure at the position (2) is characterized in that when the core pulling groove is bonded in advance, the core pulling groove is structurally designed into a zigzag lap joint structure, the bonding direction of the core pulling groove structure is the vertical bonding (11) of the lap joint surface, so that the sealing strip bubble type can be transversely pulled during bonding, and the assembly quality and the precision are obviously improved.

The core groove all adopts is pulled out at the angle that connects of other positions the utility model discloses a structural design effectively solves bonding face necking down, the problem that the sealing strip bubble type becomes flat, and sealing strip assembly quality is good and high with the matching precision of other parts, and the manufacturability is good, easy to produce, and the overlap joint is reasonable, reliable and stable.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. Novel door sealing strip vulcanizes connecing angle and pulls out core groove structure, and door sealing strip vulcanizes connecing angle injection moulding back, for deviating from in the mould, pulls out core groove structure in connecing angle bottom design, connects the angle to pull out the core groove and bonds in advance, and its characterized in that pulls out the overlap joint design that core groove position adopted the cockscomb structure, connects the angle drawing of patterns back, pulls out the core groove and carries out vertical bonding (11) in the direction of height of connecing the angle bubble type.