Air bag base cloth edge pressing mechanism

Abstract

The utility model discloses an air bag base cloth edge pressing mechanism, which belongs to the field of air bag base cloth production and processing and comprises a pressing brush and a connecting mechanism, and the pressing brush is mounted on an output shaft of a driving motor through the connecting mechanism; one side of the pressing brush is connected with a connecting shaft, and a clamping groove is formed in the connecting shaft; the connecting mechanism comprises an arc-shaped piece, a fixed block, a movable block and an elastic piece, the arc-shaped piece is connected to an output shaft of the driving motor, the fixed block is fixedly connected to the output shaft of the driving motor in a sleeving mode, the movable block is movably connected to the output shaft of the driving motor in a sleeving mode, the movable block is moved leftwards, the elastic piece is compressed by the movable block, and the pressing brush 40 is pulled out and replaced; a new pressing brush connecting shaft is inserted into the four arc-shaped pieces, when the bottom of the connecting shaft cannot be pushed, the connecting shaft is rotated to enable the four clamping blocks to be clamped into the four clamping grooves one by one, replacement of the pressing brush is completed, tools are not needed in the mode, operation is simple, and convenience during replacement of the pressing brush is effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of production and processing of air bag base cloth, and in particular relates to an edge pressing mechanism for the air bag base cloth. Background Art

[0002] The car airbag is an auxiliary protection system on the car. When the car is hit severely from the front or side, the buffer pad can expand rapidly and work with the seat belt to provide effective collision protection for the occupants, effectively reducing the casualty rate of the occupants and the driver. It is an important device for saving the lives of the occupants.

[0003] During the gluing process, the glue coating machine evenly spreads glue on the airbag bag base fabric. However, the base fabric after gluing needs a period of time to cool and solidify to ensure that the glue can be firmly attached to the base fabric. To achieve this purpose, the glue coating machine is usually used in conjunction with a drying mechanism to accelerate the curing process of the glue by heating or other means. However, this combination of gluing and drying makes the entire device relatively long, and it is usually protected and supported by structures such as mechanical housings. These mechanical structures not only occupy a large space, but also hinder manual operation to a certain extent, especially in the process of pulling the base fabric on the unwinding reel to the receiving reel. In order to overcome this difficulty, a spike design on the two conveyor chains is adopted. These spikes can effectively grasp the base fabric, and through the operation of the chain, the base fabric is smoothly pulled from the unwinding reel to the receiving reel. In order to ensure that the base cloth moves smoothly and facilitate subsequent gluing, it is necessary to pass spikes on both sides of the base cloth to provide pulling force on the one hand and improve lateral pulling on the other hand so that it will not wrinkle when gluing. In order to ensure that both sides of the base cloth pass through the needles, a pressing mechanism will be set on both sides of the conveyor chain.

[0004] Most of the existing edge pressing mechanisms perform perforations by rotating a pressure brush. After the pressure brush has been used for a long time, the pressure brush is prone to become disorderly, resulting in poor subsequent perforation effect. In addition, as the use time increases, the hair removal speed increases, affecting subsequent gluing. The pressure brush needs to be replaced regularly. When replacing the pressure brush, it is necessary to first use a tool to remove the nut before the pressure brush can be removed. At the same time, due to the spatial obstruction of the glue coating machine, it is not conducive to the operation of the staff, resulting in inconvenience in replacing the pressure brush. Therefore, an air bag base cloth edge pressing mechanism that is easy to replace the pressure brush is proposed. Utility Model Content

[0005] The utility model aims to provide an air bag base fabric edge pressing mechanism to solve the problem of inconvenience in replacing the existing pressing brush.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an airbag base fabric edge pressing mechanism, comprising a pressing brush and a connecting mechanism, wherein the pressing brush is mounted on the output shaft of a driving motor through the connecting mechanism;

[0007] One side of the pressure brush is connected to a connecting shaft, and a slot is provided on the connecting shaft;

[0008] The connecting mechanism includes an arc-shaped piece, a fixed block, a movable block and an elastic member, the arc-shaped piece is connected to the output shaft of the driving motor, the fixed block is fixedly sleeved on the output shaft of the driving motor, the movable block is movably sleeved on the output shaft of the driving motor, the elastic member is arranged between the fixed block and the movable block, and the arc-shaped piece is connected with a clamping block.

[0009] Furthermore, one side of the block is configured as an arc-shaped surface.

[0010] Furthermore, the elastic member is sleeved on the output shaft of the driving motor.

[0011] Furthermore, the arc-shaped pieces, the card blocks and the card slots are provided in plurality and in the same number.

[0012] Furthermore, the plurality of arc-shaped pieces are arranged rotationally symmetrically about the axis of the output shaft of the driving motor.

[0013] Furthermore, a plurality of arc-shaped pieces are connected to a protrusion on one side away from each other.

[0014] Furthermore, the end of the connecting shaft away from the pressure brush is hemispherical.

[0015] Furthermore, the plurality of slots are rotationally symmetrical around the center of the connecting shaft.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The airbag bag base fabric edge pressing mechanism moves the movable block to the left, compresses the elastic part of the movable block, and pulls out the pressure brush 40 for replacement; inserts a new pressure brush connecting shaft into the four arc-shaped pieces, and when the bottom of the connecting shaft cannot be pushed, rotates the connecting shaft to allow the four clamping blocks to be inserted into the four clamping grooves one by one, and the replacement of the pressure brush is completed. This method does not require the use of tools and is simple to operate, effectively improving the convenience of replacing the pressure brush. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of the edge pressing mechanism of the airbag base fabric;

[0019] Figure 2 for Figure 1 Remove the exploded view of the mounting table;

[0020] Figure 3 It is a structural schematic diagram during the pressure brush insertion process;

[0021] Figure 4 It is a structural schematic diagram of the edge holding mechanism during the edge holding process.

[0022] In the figure: 10, mounting table; 20, driving motor; 210, output shaft; 310, arc-shaped sheet; 311, clamping block; 3111, arc-shaped surface; 312, protrusion; 320, fixed block; 330, movable block; 340, elastic member; 40, pressure brush; 410, connecting shaft; 411, clamping slot; 50, airbag base cloth; 60, transmission chain; 610, spike. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with embodiments.

[0024] The following examples are used to illustrate the present invention, but cannot be used to limit the scope of protection of the present invention. The conditions in the examples can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0025] See also Figure 1-4 The utility model provides an airbag base fabric edge pressing mechanism, including a mounting platform 10 and a pressing brush 40. A driving motor 20 is mounted on the top of the mounting platform 10. The output shaft 210 of the driving motor 20 is connected to four arc-shaped pieces 310. The four arc-shaped pieces 310 are arranged rotationally symmetrically with respect to the axis of the output shaft 210 of the driving motor 20. A clamping block 311 is connected to one side of the four arc-shaped pieces 310 that are close to each other. A connecting shaft 410 is connected to the left side of the pressing brush 40. Four clamping grooves 411 are provided on the connecting shaft 410. The four clamping grooves 411 are rotationally symmetrical around the axis of the connecting shaft 410.

[0026] See also Figure 2 and Figure 3 The pressure brush 40 has a certain flexibility and can provide appropriate pressure when contacting the airbag bag base fabric 50. It will not produce sharp or excessive pressure points when contacting the airbag bag base fabric 50 like rigid components, thereby reducing the risk of material wear or damage caused by friction or extrusion.

[0027] See also Figure 1-3 A fixed block 320 is fixedly sleeved on the output shaft 210 of the driving motor 20, and a movable block 330 is sleeved on the output shaft 210 of the driving motor 20 so as to be movable left and right. An elastic member 340 is connected between the fixed block 320 and the movable block 330, and the elastic member 340 is sleeved on the output shaft 210 of the driving motor 20;

[0028] Insert the connecting shaft 410 into the circle formed by the four arc-shaped pieces 310, and the connecting shaft 410 will resist the four arc-shaped pieces 310 and tilt up (such as Figure 3As shown in the figure), when the bottom of the connecting shaft 410 cannot be pushed, the block 311 on the arc-shaped piece 310 and the slot 411 on the connecting shaft 410 are on the same vertical plane. By rotating the connecting shaft 410, the four blocks 311 are inserted into the four slots 411 one by one, so that the connecting shaft 410 can rotate with the output shaft 210 of the driving motor 20 through the arc-shaped piece 310.

[0029] The movable block 330 is always sleeved on the four arc-shaped pieces 310 under the action of the elastic member 340 , so that the four arc-shaped pieces 310 cannot be opened, and the connecting shaft 410 cannot be separated from the four arc-shaped pieces 310 .

[0030] See also Figure 2 and Figure 3 The end of the connecting shaft 410 away from the pressure brush 40 is hemispherical, which is conducive to the connecting shaft 410 being quickly inserted between the four blocks 311, thereby improving convenience.

[0031] See also Figure 2 and Figure 3 The left sides of the four clamping blocks 311 are configured as arc-shaped surfaces 3111 , and the arc-shaped surfaces 3111 have less resistance force from the clamping slots 411 , making it easier for the connecting shaft 410 to be pulled out from the four arc-shaped pieces 310 .

[0032] See also Figure 2 The four arc-shaped pieces 310 are connected to the sides away from each other with protrusions 312 . The movable block 330 is blocked by the protrusions 312 and will not separate from the output shaft 210 of the drive motor 20 and the four arc-shaped pieces 310 under the action of the elastic member 340 .

[0033] The usage of this utility model:

[0034] Installation position: The two air bag base fabric edge pressing mechanisms are respectively placed on the sides of two parallel conveying chains 60 that are away from each other.

[0035] The airbag base fabric 50 is pressed: the two sides of the head of the airbag base fabric 50 are manually passed through some spikes 610 on the conveying chain 60, and the conveying chain 60 is driven to operate to pull the airbag base fabric 50 to move. When the two sides of the airbag base fabric 50 that have not passed through the spikes 610 pass through the pressing mechanism, the connecting shaft 410 can rotate with the output shaft 210 of the driving motor 20 through the arc-shaped sheet 310, and the pressing brush 40 also rotates accordingly. The rotation direction of the pressing brush 40 is opposite to the rotation direction of the conveying chain 60 (such as Figure 4 As shown in the figure), the pressure brush 40 will press the airbag bag base fabric 50 downward against it, so that the side edge of the airbag bag base fabric 50 will pass through the needles on the conveying chain 60, thereby completing the edge pressing of the airbag bag base fabric 50.

[0036] Replacement of the pressure brush 40: manually move the movable block 330 to the left, the movable block 330 compresses the elastic part 340, and pulls out the pressure brush 40 for replacement; insert the new pressure brush 40 connecting shaft 410 into the four arc-shaped pieces 310. When the bottom of the connecting shaft 410 cannot be pushed, rotate the connecting shaft 410 to allow the four clamping blocks 311 to be clamped into the four clamping grooves 411 one by one, and the replacement of the pressure brush 40 is completed.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An airbag base fabric edge pressing mechanism, characterized in that: It comprises a pressure brush (40) and a connecting mechanism, wherein the pressure brush (40) is mounted on an output shaft (210) of a driving motor (20) via the connecting mechanism; One side of the pressure brush (40) is connected to a connecting shaft (410), and a slot (411) is provided on the connecting shaft (410); The connection mechanism comprises an arc-shaped piece (310), a fixed block (320), a movable block (330) and an elastic member (340); the arc-shaped piece (310) is connected to an output shaft (210) of a drive motor (20); the fixed block (320) is fixedly sleeved on the output shaft (210) of the drive motor (20); the movable block (330) is movably sleeved on the output shaft (210) of the drive motor (20); the elastic member (340) is arranged between the fixed block (320) and the movable block (330); and a clamping block (311) is connected to the arc-shaped piece (310).

2. The air bag base fabric edge pressing mechanism according to claim 1, characterized in that: One side of the clamping block (311) is configured as an arc-shaped surface (3111).

3. The air bag base fabric edge pressing mechanism according to claim 1, characterized in that: The elastic member (340) is sleeved on the output shaft (210) of the driving motor (20).

4. The air bag base fabric edge pressing mechanism according to claim 1, characterized in that: The arc-shaped pieces (310), the clamping blocks (311) and the clamping slots (411) are all provided in plurality and in the same number.

5. The air bag base fabric edge pressing mechanism according to claim 4, characterized in that: The plurality of arc-shaped pieces (310) are rotationally symmetrically arranged about the axis of the output shaft (210) of the drive motor (20).

6. The air bag base fabric edge pressing mechanism according to claim 4, characterized in that: The multiple arc-shaped pieces (310) are each connected to a protrusion (312) on one side away from each other.

7. The air bag base fabric edge pressing mechanism according to claim 1, characterized in that: The end of the connecting shaft (410) away from the pressure brush (40) is hemispherical.

8. The air bag base fabric edge pressing mechanism according to claim 4, characterized in that: The plurality of slots (411) are rotationally symmetrical around the axis center of the connecting shaft (410).

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