A wire-cladding process after epidermal weakening

Abstract

The present invention discloses a coating alignment process after the epidermis is weakened. It includes step 1: positioning the epidermis on the weakened fetal membrane, and forming the required weakening line after completing the cold knife or rolling knife weakening on the B surface of the epidermis; step 2: fixing the above-mentioned weakened epidermis on the first fixture in reverse, and using the forward projection method to project the position of the weakening line on the A surface of the epidermis on the first fixture, and sticking white tape on the A surface of the epidermis along the position of the projection light, that is, marking the position of the weakening line of the B surface of the epidermis on the A surface of the epidermis; step 3: placing the skeleton on the second fixture, adjusting the position of the epidermis in step 2, so that the white tape on the epidermis is aligned along the position of the projection light, completing the positioning, and then heating with a hot drying gun, and manually bonding and coating the epidermis on the skeleton. The present invention solves the problem that the weakening lines of the epidermis and the skeleton are misaligned due to the inability to visually see the position of the weakening line on the B surface of the weakened epidermis during coating, thereby improving the product yield and coating efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile interior decoration, and particularly relates to a coating and alignment process after the surface is weakened. Background Art

[0002] At present, in the design of automobile interiors, in order to pursue the beauty of the dashboard interior, breakthroughs in shape, and the requirements of safety regulations, it is often necessary to add weakening of the skin and frame on the passenger side of the dashboard. In order to meet the design requirements of the contour of the weakening line, the skin positioning tooling at the weakened position is generally added during the wrapping. The existing tooling often wastes man-hours and auxiliary materials during the wrapping process because of the many operating procedures and complex conversion benchmarks.

[0003] In order to improve efficiency and reduce the consumption of auxiliary materials, a new type of surface-covered line-setting method needs to be designed. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the above-mentioned background technology and provide a coating and alignment process after the skin is weakened.

[0005] The technical solution adopted by the present invention is: a coating and wiring process after the skin is weakened, comprising the following steps:

[0006] Step 1: Position the epidermis on the weakened fetal membrane and form the required weakening line after completing cold knife or rolling knife weakening on the B side of the epidermis;

[0007] Step 2: Fix the weakened epidermis on the first jig in reverse, project the position of the weakened line on the surface A of the epidermis on the first jig by forward projection, and stick white tape on the surface A of the epidermis along the position of the projection light, that is, mark the position of the weakened line of the surface B of the epidermis on the surface A of the epidermis, so as to provide the position of the weakened line of the epidermis visible on the surface A for the next step of epidermis coating;

[0008] Step 3: Place the skeleton on the second fixture, adjust the position of the skin in step 2, align the white tape on the skin along the position of the projection light, complete the positioning, then heat it with a hot drying gun, and manually fit the skin onto the skeleton.

[0009] In the above step 1, a positioning hole is provided on the epidermis, a positioning pin is provided on the weakened fetal membrane, and the epidermis and the weakened fetal membrane are positioned by the positioning hole and the positioning pin.

[0010] The weakened fetal membrane is provided with a contoured sunken step of the epidermis, and the contoured sunken step is 0.5 mm larger than the outline of the epidermis.

[0011] In the above step 2, positioning holes are provided on the skin, positioning pins are provided on the first jig, and the skin and the first jig are positioned by means of the cooperation of the positioning holes and the positioning pins.

[0012] In the above step 2, ensure that the position where the projected light ray is projected on the first jig is consistent with the position of the weakened line on the B surface of the skin.

[0013] In the above step 3, ensure that the position where the projected light ray is projected on the second jig is consistent with the position of the weakened line on the skeleton.

[0014] The present invention effectively reduces the wire positioning process, improves work efficiency, and saves the consumption of auxiliary materials.

[0015] The present invention ensures that the positional deviation after weakening of the skeleton and the skin is less than or equal to 2 mm, effectively ensuring that the position of the weakened line of the skin coincides with the position of the weakened line of the skeleton when the skin is wrapped around the skeleton, and reducing the error during the wrapping process.

[0016] The present invention solves the problem that the weakened lines of the skin and the skeleton are misaligned when the weakened skin is wrapped because the position of the weakened line on the B surface cannot be visually observed, and improves the yield rate of the product and the wrapping efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of step 1 of the present invention;

[0018] Figure 2 It is a schematic diagram of step 2 of the present invention;

[0019] Figure 3 It is a schematic diagram of step 3 of the present invention.

[0020] In the figure, 1 - skin, 2 - weakening die, 3 - knife, 4 - weakened line, 5 - positioning hole, 6 - positioning pin, 7 - first jig, 8 - second jig, 9 - skeleton. DETAILED DESCRIPTION OF THE INVENTION

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, which are convenient for clearly understanding the present invention, but they do not constitute a limitation to the present invention.

[0022] As Figures 1-3 shown, the present invention includes the following steps:

[0023] Step 1: Position the skin 1 on the weakening die 2, and form the required weakened line 4 after weakening the B surface of the skin 1 with a cold knife or a rotary knife 3;

[0024] Step 2: Fix the weakened skin 1 reversely on the first fixture 7 above. By using the forward projection method, project the position of the weakened line 4 on the A surface of the skin 1 onto the first fixture 7, and stick white tape along the position of the projection light on the A surface of the skin 1, that is, mark the position of the weakened line 4 on the B surface of the skin 1 on the A surface of the skin 1, providing a visible position of the skin weakening line on the A surface for the next step of wrapping the skin 1.

[0025] Step 3: Place the skeleton 9 on the second fixture 8, adjust the position of the skin 1 in Step 2 to align the white tape on the skin 1 along the position of the projection light to complete the positioning, and then heat it with a heat gun and manually wrap the skin 1 on the skeleton 9.

[0026] In the above Step 1, positioning holes 5 are provided on the skin 1, positioning pins 6 are provided on the weakening die 2, and the skin 1 and the weakening die 2 are positioned by the cooperation of the positioning holes 5 and the positioning pins 6.

[0027] The weakening die 2 is provided with a contoured sinking step for the skin, and the contoured sinking step is 0.5 mm larger than the contour of the skin 1.

[0028] In the above Step 2, positioning holes 5 are provided on the skin 1, positioning pins 6 are provided on the first fixture 7, and the skin and the first fixture 7 are positioned by the cooperation of the positioning holes 5 and the positioning pins 6.

[0029] In the above Step 2, ensure that the position where the projected projection light projects on the first fixture 7 is consistent with the position of the weakened line on the B surface of the skin 1.

[0030] In the above Step 3, ensure that the position where the projected projection light projects on the second fixture 8 is consistent with the position of the weakened line on the skeleton 9.

[0031] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

Claims

1. A wire-cladding process after epidermal weakening, characterized in that: It includes the following steps: Step 1: Position the epidermis on the weakening membrane, and after weakening with a cold knife or a rotary knife on the B side of the epidermis, form the required weakening lines; Step 2: Fix the weakened epidermis obtained above reversely on the first fixture, and in the way of forward projection, project the position of the weakening lines on the A side of the epidermis on the first fixture, and stick white tape along the position of the projection light on the A side of the epidermis, that is, mark the position of the weakening lines on the B side of the epidermis on the A side of the epidermis; Step 3: Place the skeleton on the second fixture, adjust the position of the epidermis in Step 2 to align the white tape on the epidermis along the position of the projection light to complete the positioning, and then heat with a heat gun and manually fit and wrap the epidermis on the skeleton; In the above Step 1, positioning holes are provided on the epidermis, positioning pins are arranged on the weakening membrane, and the epidermis and the weakening membrane are positioned by the cooperation of the positioning holes and the positioning pins; The weakening membrane is provided with a profiling sinking step for the epidermis, and the profiling sinking step is 0.5 mm larger than the contour of the epidermis; In the above Step 2, positioning holes are provided on the epidermis, positioning pins are arranged on the first fixture, and the epidermis and the first fixture are positioned by the cooperation of the positioning holes and the positioning pins; In the above Step 2, ensure that the position where the projected projection light projects on the first fixture is consistent with the position of the weakening lines on the B side of the epidermis; In the above Step 3, ensure that the position where the projected projection light projects on the second fixture is consistent with the position of the weakening lines on the skeleton.

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