Coil spring tape spreading device for sun visor

Abstract

The invention relates to a coil spring tape spreading device for a sun visor. The coil spring tape spreading device comprises a device bottom plate and a rack which is mounted on one side of the device bottom plate through a rack support. One end of the rack is provided with a coil spring uncoiling clamping mechanism and a front end electrode, and a rear end electrode mechanism is arranged on theposition, at the other end of the rack, on the rack support. A double-wheel tape spreading mechanism is arranged on the position, close to the coil spring uncoiling clamping mechanism, of the inner side of the rack, and the double-wheel tape spreading mechanism is mounted on the device bottom plate through an electric linear sliding table and a tape spreading guide rail. The tape spreading guide rail and the rack are in parallel, and the double-wheel tape spreading mechanism is provided with a tape spreading wheel and a friction gear which is coaxial with the tape spreading wheel. The lower portion of the tape spreading wheel is provided with a coil spring supporting wheel, a tape guide groove and the like, and the friction gear cooperates with the rack to drive the tape spreading wheel torotate. One end of a coil spring is fixed through the coil spring uncoiling clamping mechanism, and the other end of the coil spring is fixed to a tension spring sliding plate and passes through theposition between the coil spring supporting wheel and the tape spreading wheel. No base is arranged, and thus base deformation and uneven heating cannot occur during heating; and meanwhile, point contact is adopted between the supporting wheel and the coil spring, thus, deformation is tiny, and almost no influence is exerted.

Description

technical field [0001] The invention relates to the technical field of skylight sunshade curtains, in particular to a coil spring glue spreading device for sunshade curtains. Background technique [0002] Car sunroofs are becoming more and more popular as a comfortable configuration of cars. Panoramic sunroofs are favored by consumers on mid-to-high-end models because of their wide field of vision and good ventilation. However, due to its special structure, the design of the sunshade is different from the sunshade structure of the traditional small sunroof. Most of them are opened and closed manually or electrically, and the structure is rolled up to help the owner enjoy a transparent view or shield the sun. . like figure 1 As shown, as the Chinese utility model patent that notification number is CN205951684U discloses a sunshade curtain of an automobile sunroof, comprising a cloth curtain 1, an inner tube 2, a side strip 3, a coil reed 4, a slide block 5, an end cover 6 a...

AI Technical Summary

Problems solved by technology

[0005] (1) Since the length of the coil spring is 1.6m, the length of the Bakelite track is about 2M

Moreover, the thickness is 30mm and the width is 50mm; it is difficult to ensure the flatness of the guide groove during processing, and the bakelite material is not easy to process

This affects the position of the wheel train from the coil spring when it is walking, resulting in the occurrence of glue laying position offset, glue breakage, air bubbles, etc., which directly affects the quality of glue laying

[0006] (2) Due to long-term heating, Bakelite will be deformed. This deformation is uncontrollable, and the degree of deformation of the guide groove will directly affect the position of the coil spring in the guide groove, so it is difficult to ensure that it is on the coil spring when laying glue. glue laying position

[0007] (3) In the existing technology, the rubber-laying wheel system and the guide groove are respectively in two sets of mechanisms, and the parallelism of the two mechanisms can be guaranteed at a distance of 1.6m, thus affecting the glue-laying position on the coil spring

[0008] (4) Due to the deformation of the coil spring after heating, it often appears that it falls out of the guide groove

[0009] (5) Due to the air blowing port in the guide groove, the temperature is uneven when the coil spring is heated, resulting in glue breakage, air bubbles, etc., which directly affect the quality of glue laying

Due to the ups and downs of the walking surface, which affects the friction force and leads to inconsistent glue laying speeds at different positions, resulting in glue breaking, which directly affects the quality of glue laying

[0011] (7) It is inconvenient to adjust the existing process. It needs to be adjusted by pasting masking paper on the lower side according to different walking surfaces. Moreover, the adjustment of the wheel train is complicated and requires experienced personnel to adjust.

Moreover, the process is unstable after adjustment, and usually needs to be readjusted once every 7-12 days, and each adjustment is expected to take 4-6 hours

[0012] (8) Due to the lack of auxiliary rewinding power in the existing technology, the coil spring is easy to scatter during the rewinding process

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