Novel alignment blade for sewing thread of automobile instrument board wrapping part

Abstract

The utility model discloses an automobile dashboard covering part sewing thread alignment blade, which relates to the technical field of automobile interior trim part production, and comprises a knife rest and a blade, the lower end and the middle part of the blade are provided with a sewing tool nose, and the two sides of the blade are provided with alignment tool noses. The novel alignment blade is scientific in design, reasonable in structure, convenient to use, safe and reliable in function and low in manufacturing cost, the outer edges of the planes on the two sides of the novel alignment blade serve as reference for the parallelism of decorative threads, and therefore the skill dependence on operators can be reduced in the whole alignment process; the straight, parallel and attractive decorative rib appearance of the skin of the instrument board wrapping piece is achieved, the appearance quality of products is improved, and the effect of improving the first-pass yield of the products is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of automotive interior parts production, in particular to a new type of thread alignment blade for the stitching of automotive instrument panel covering parts. Background Art

[0002] In the production of automotive interior parts, for automotive instrument panels with decorative thread stitching, a relatively high requirement is placed on the parallelism of the stitches. The traditional thread alignment blade is a single-piece stainless steel plate, which can only insert the surface splicing seam into the seam groove. Due to different stretching forces applied by the operators to the surface, it is easy to cause the stitches to be skewed, and then it is impossible to ensure that the width of the decorative line is uniform and consistent, affecting the appearance quality. This makes it more dependent on the work experience and techniques of the operators during the covering process, resulting in a low product qualification rate and the need for manual rework. Summary of the Utility Model

[0003] Aiming at the problems of the prior art, the utility model provides a new type of thread alignment blade for the stitching of automotive instrument panel covering parts to solve the problems.

[0004] The technical solution adopted by the utility model is as follows:

[0005] A thread alignment blade for the stitching of automotive instrument panel covering parts, comprising a tool holder and a blade. It is characterized in that the width range of the blade is 5 mm - 8 mm. At the lower end and the middle of the blade, there is a seam pressing tip, and on both sides, there are thread alignment tips. The extension outside the thread alignment tips forms the outer edge of the thread alignment tips, that is, the outer edge of the thread alignment tips is on the same plane on the side of the blade. The outer edge and the inner edge form an included angle, constituting a tip with a height. The height ranges from 0.5 mm to 1.6 mm.

[0006] The width of the blade is 6 mm.

[0007] The included angle ranges from 20° to 30°.

[0008] The height is 1.5 mm.

[0009] The width of the root of the thread alignment tip ranges from 0.23 mm to 0.75 mm.

[0010] The new type of thread alignment blade for the stitching of automotive instrument panel covering parts of the utility model is scientifically designed, reasonably structured, easy to use, safe and reliable in function, and low in manufacturing cost. Using the outer edges of the two side planes of the new type of thread alignment blade as a reference for the parallelism of the decorative line, the dependence on the skills of the operators can be reduced during the entire thread alignment process, achieving a straight, parallel and beautiful decorative line appearance on the surface of the instrument panel covering parts, improving the appearance quality of the product, and achieving the effect of improving the first-pass qualification rate of the product. Brief Description of the Drawings

[0011] The accompanying drawings described herein are used to provide a further understanding of the present application and form a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and shall not unduly limit the present application.

[0012] Figure 1 Schematic diagram of a new line-aligning blade for the stitched part of the dashboard covering of the utility model

[0013] Figure 2 is Figure 1 leftward (partial) schematic diagram of

[0014] Figure 3 Schematic diagram of local features of the line-aligning blade

[0015] Figure 4 Schematic cross-sectional view of the utility model in use

[0016] Figure 5 Schematic three-dimensional view of the utility model in use

[0017] In the figure: 1 - tool holder; 2 - blade; 21 - seam-pressing tip; 22 - line-aligning tip; 23 - side edge; 24 - outer edge; 25 - inner edge; 3 - skin; 31 - sewing thread; 32 - decorative thread; 4 - skeleton; 41 - seam-pressing groove; α - included angle; H - height. Detailed implementation manners

[0018] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described below are only used to explain the present utility model. In these descriptions, keywords that need attention include "seam-pressing tip", "line-aligning tip", "side edge", "outer edge", "inner edge" and "through bar", etc. These are only for the convenience of describing the present utility model and simplifying the description, and therefore cannot be construed as a limitation to the present utility model.

[0019] Such as Figure 1As shown in the figure, the novel line-aligning blade for the sewing line of the automotive instrument panel covering of the present utility model realizes pressing the sewing line 31 of the skin 3 of the automotive instrument panel covering into the seam pressing groove 41 of the skeleton 4 on the sewing line alignment tooling (machine) for the automotive instrument panel covering, ensuring aesthetics and making it less likely to explode the thread. The seam pressing groove 41 provided in the skeleton 4 has a groove depth of 2.7 mm - 3.5 mm, and the width is suitable for pressing the skin 3 and its sewing line 31 into it. The present utility model includes a tool holder 1 and a blade 2. The width of the blade 2 is set with reference to the distance between two decorative lines of the instrument panel covering, that is, the distance between the two side edges 23 of the blade 2 is the width of the blade 2, and the range of use is 5 mm - 8 mm. In this embodiment, it is 6 mm, which is also the distance between two decorative lines of the instrument panel covering during actual use, facilitating the structure of the blade 2 to be conducive to the sewing line alignment of the covering. At the lower end of the blade 2, a seam pressing tip 21 is provided in the middle, and its height is 2.5 mm - 3 mm. In this embodiment, it is actually 2.7 mm. Two line-aligning tips 22 are provided on both sides. See Figure 3 As shown, extending from the outer edge 24 of the line-aligning tip 22 forms the outer edge 24 of the line-aligning tip 22, that is, the outer edge 24 of the line-aligning tip 22 is on the same plane as the side edge 23 of the blade 2. The outer edge 24 and the inner edge 25 form an angle α, constituting a tip with a height H. For facilitating the sewing line alignment operation during use, the angle α is in the range of 20° - 30°. In this embodiment, it is preferably 25°, and the height H is in the range of 0.5 mm - 1.6 mm. In this embodiment, it is preferably 1.5 mm. At this time, the root width of the line-aligning tip 22 is about 0.7 mm, and the root width of the line-aligning tip 22 generally corresponds to a reference value in the range of 0.23 mm - 0.75 mm. Figure 2 Shows a part (a section) of the through-strip blade 2.

[0020] When the present utility model is in use, during the operation of covering the skin 3 on the sewing line alignment tooling for the automotive instrument panel covering, see Figure 4, first place the vehicle instrument panel skeleton 4 in the mold, and then cover the skin 3 with a sewn sewing thread 31 and two decorative lines 32 on the skeleton 4. The sewing thread 31 part is initially aligned with the seam pressing groove 41 of the skeleton 4, and then perform the following operations: operate the sewing line alignment tooling for the vehicle instrument panel covering part, press down its tool rest 1, and press the skin 3 and its sewing thread 31 part into the seam pressing groove 41 through the seam pressing tool tip 21. When the sewing thread 31 part of the skin 3 is basically pressed into the seam pressing groove 41, lock the tool rest 1 of the sewing line alignment tooling for the vehicle instrument panel covering part. The tool tip of the alignment tool tip 22 is in a position close to or in contact with the skin 3. The decorative line 32 of the skin 3 is still located on the surface of the skeleton 4, and it is very likely that the decorative line 32 is not in place, resulting in uneven spacing, unstraight lines and other conditions. At this time, since the blade 2 of the present invention is provided with the alignment tool tip 22, the decorative line 32 area of the skin 3 can be heated with a heat gun to activate the glue pre-applied by spraying or rolling the glue on the skin 3 while adjusting the decorative line 32. Use the alignment tool tip 22 of the rod to check the distortion of the decorative line 32, and take the alignment tool tip 22 as the reference to move and adjust the skin 3 so that the two decorative lines 32 are just aligned with the alignment tool tips 22 of the two rods, forming a straight, parallel and beautiful appearance of the decorative line 32, and first complete the covering of the skin 3 in this area, and then complete the covering of the entire skin 3.

[0021] The above is only one implementation mode of the present invention. For those skilled in the art, the present invention can also have various other implementation modes with changes and modifications, which will not be elaborated one by one here. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention are all included in the protection scope required by the present invention.

Claims

1. A new type of alignment blade for the sewing line of an automotive instrument panel covering part, comprising a tool holder (1) and a blade (2), characterized in that, The width range of the blade (2) is 5 mm - 8 mm. At the lower end and middle of the blade (2), there is a seam-pressing cutting edge tip (21), and on both sides, there are alignment cutting edge tips (22). The extension of the outer edge (24) of the alignment cutting edge tip (22) forms the outer edge (24) of the alignment cutting edge tip (22), that is, the outer edge (24) of the alignment cutting edge tip (22) is in the same plane as the side edge (23) of the blade (2). The outer edge (24) and the inner edge (25) form an angle (α), constituting a cutting edge tip with a height (H), and the height H is in the range of 0.5 mm - 1.6 mm.

2. A novel wire-aligning blade for the sewing line of an automotive instrument panel covering part according to claim 1, characterized in that, The width of the blade (2) is 6 mm.

3. A novel wire alignment blade for an automotive instrument panel covering part according to claim 1, characterized in that, The angle (α) is in the range of 20° - 30°.

4. A novel alignment blade for the stitching of an automotive instrument panel covering, as claimed in claim 1, wherein The height (H) is 1.5 mm.

5. A novel alignment blade for the stitching of an automotive instrument panel covering part according to claim 1, characterized in that, The root width of the alignment cutting edge tip (22) is in the range of 0.23 mm - 0.75 mm.

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