A pre-adjustment device and pre-adjustment method for IMG product coating edge

Abstract

The present invention discloses a pre-adjustment device and a pre-adjustment method for the coated edge of an IMG product, comprising an adjusted skeleton and an adjusted mold, through which a qualified IMG product with a skin covering the skeleton is formed; the adjustment amount of the adjusted skeleton is the difference between the designed gap of the skin skeleton and the actual gap of the skin skeleton; the adjustment amount of the adjusted mold is the difference between the designed minimum gap of the skin skeleton and the actual gap of the skin skeleton; the adjusted skeleton and the adjusted mold smoothly transition from the adjustment end to the distal end. The pre-adjustment device and the pre-adjustment method of the present invention determine the adjustment amount of the simultaneously adjusted skeleton and the mold (corresponding to the skin) by verifying the existing products; it does not need to make manual samples, saving engineering verification time and mold change costs, and the products produced by the pre-adjustment device of the present invention meet the size requirements.

Description

Technical Field

[0001] The present invention relates to the technical field of IMG molding process, and in particular to a pre-adjustment device and a pre-adjustment method for an IMG product coating edge. Background Art

[0002] At present, for the edge-wrapped products formed by IMG (female mold vacuum forming process), the frame of the edge-wrapped area needs to be adjusted after the mold is opened, because the IMG molding area requires a minimum gap (1.5mm) between the skin and the frame to ensure that there is no risk of mold collision. However, the actual gap between the skin and the frame after the edge is smaller than the minimum gap required by the design, resulting in the need to re-verify and adjust the frame after the mold is opened, thereby increasing the engineering verification time and mold change costs.

[0003] like Figure 1 , 2 The IMG molded encapsulated part (IMG product) shown has the following encapsulated edge design structure:

[0004] 1. Reserve a gap between the skin 2 and the skeleton 1 according to the thickness of the skin. Before IMG molding, the gap A between the skin and the skeleton is usually reserved, and the gap A is usually 2mm;

[0005] 2. After IMG molding, since the coating edge 3 needs to be edged by equipment, the skin will be compressed during edged, resulting in the gap between the skin and the skeleton being less than A. The conventional method is to pre-adjust the skeleton only, but in order to ensure that the skeleton does not touch the IMG mold, the design value of the gap between the skin and the skeleton is required to be no less than B due to the manufacturing tolerance of the IMG mold gap and the skeleton size tolerance, and B is usually 1.5mm; therefore, the adjustment amount of the skeleton is D≤AB, and D is usually 0.5mm;

[0006] 3. After the actual product is completed, the gap between the skin and the skeleton of the coating edge is generally smaller than B, and the actual skin and skeleton gap is C. The actual skin and skeleton gap C of some products is even less than 1mm; therefore, it is necessary to verify the adjustment amount after the product is completed, which requires a large number of manual sample production, mold trial production and product measurement; finally, the skeleton adjustment amount that can ensure that the skeleton size is within the tolerance and does not hit the IMG mold, and can ensure the appropriate size after coating, is obtained, and the skeleton mold is repaired; however, the above verification process increases the engineering verification time and mold change costs;

[0007] 4. At the same time, in order to ensure that the frame size tolerance does not hit the IMG mold, some products cannot reach the frame adjustment amount to ensure the appropriate size after coating. At this time, the product ultimately cannot meet the size requirements. Summary of the invention

[0008] In view of the above problems existing in the prior art, the present invention provides a pre-adjustment device and a pre-adjustment method for the coated edge of an IMG product.

[0009] The present invention discloses a pre-adjustment device for coating edges of IMG products, comprising a post-adjustment frame and a post-adjustment mold, through which a qualified IMG product with a skin coating the frame is formed;

[0010] The adjustment amount of the adjusted skeleton is the difference between the designed gap of the epidermis skeleton and the actual gap of the epidermis skeleton;

[0011] The adjustment amount of the mold after adjustment is the difference between the designed minimum gap of the skin skeleton and the actual gap of the skin skeleton;

[0012] The adjusted skeleton and the adjusted mold smoothly transition from the adjustment end to the distal end.

[0013] As a further improvement of the present invention, the adjustment amount of the adjusted mold corresponds to the adjustment amount of the skin.

[0014] As a further improvement of the present invention, the designed gap of the epidermis skeleton is 2 mm, and the minimum designed gap of the epidermis skeleton is 1.5 mm.

[0015] As a further improvement of the present invention, the adjustment amount of the adjusted skeleton is not greater than 0.5 mm, and the transition ratio of the adjusted mold is not greater than 1:30.

[0016] The present invention also discloses a method for pre-adjusting the coated edge of an IMG product, comprising:

[0017] Determine the design gap of the epidermis skeleton;

[0018] Determine the actual gap between the skin and skeleton of IMG products based on mass-produced products;

[0019] Based on the minimum gap of the skin skeleton design, adjust the skeleton and the mold;

[0020] The adjustment amount of the skeleton is the difference between the designed gap between the skin and skeleton and the actual gap between the skin and skeleton;

[0021] The adjustment amount of the mold is the difference between the designed minimum gap of the skin frame and the actual gap of the skin frame.

[0022] As a further improvement of the present invention, the adjustment amount of the mold corresponds to the adjustment amount of the skin.

[0023] As a further improvement of the present invention, the designed gap of the epidermis skeleton is 2 mm, and the minimum designed gap of the epidermis skeleton is 1.5 mm.

[0024] As a further improvement of the present invention, the adjustment amount of the skeleton is not greater than 0.5 mm, and the transition ratio of the mold adjustment is not greater than 1:30.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The pre-adjustment device and pre-adjustment method of the present invention verify existing products and determine the adjustment amounts for adjusting the skeleton and the mold (corresponding to the epidermis) at the same time; there is no need to make manual samples, thus saving engineering verification time and mold change costs. The products produced by the pre-adjustment device of the present invention meet the size requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of the existing unregulated IMG product; Figure 2 for Figure 1 A cross-sectional view of AA;

[0028] Figure 3 A schematic diagram of the structure of a pre-adjustment device for the coated edge of an IMG product disclosed in an embodiment of the present invention;

[0029] Figure 4 is a structural schematic diagram of an IMG product conditioned by the preconditioning device of the present invention;

[0030] Figure 5 for Figure 4 A cross-sectional view of BB;

[0031] Figure 6 A diagram of the position of the automobile interior decoration used by the IMG product disclosed in one embodiment of the present invention.

[0032] In the figure:

[0033] 1. Skeleton; 2. Surface; 3. Surface edging area; 4. Adjusted skeleton; 5. Adjusted mold. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] The present invention is further described in detail below in conjunction with the accompanying drawings:

[0036] like Figures 3 to 5As shown, the present invention provides a pre-adjustment device for the covering edge of an IMG product, which includes two structures, namely, an adjusted skeleton 4 formed by adjusting the original skeleton 1 and an adjusted mold 5 formed by adjusting the original mold (skin 2). Since the cavity surface (A surface) of the mold directly determines the shape of the skin, the adjustment amount of the mold is the adjustment amount of the skin. Through the cooperation of the adjusted skeleton 4 and the adjusted mold 5, an IMG product with the minimum gap that meets the design of the skin skeleton can be produced during production.

[0037] The principle of the present invention is: according to the same structure of the mass-produced project, the actual compression amount of the edge-wrapped area is verified, and the skin and the skeleton are pre-adjusted under the premise of ensuring a minimum gap of 1.5mm between the skin and the skeleton. After the A-side skin is adjusted, it is ensured that the product after coating meets the data status, and there should be no uneven surface and other marks that are not in the original data.

[0038] The shape and size parameters corresponding to the adjusted skeleton and the adjusted mold in the pre-adjustment device of the present invention are:

[0039] The adjustment amount D of the adjusted skeleton 4 is the difference between the designed gap A of the epidermis skeleton and the actual gap C of the epidermis skeleton;

[0040] The adjustment amount E of the mold 5 after adjustment is the difference between the designed minimum gap B of the skin skeleton and the actual gap C of the skin skeleton;

[0041] The adjusted skeleton 4 and the adjusted mold 5 both smoothly transition from the adjustment end to the distal end.

[0042] The present invention can ensure the production of qualified IMG products with skin covering the skeleton through the skeleton and the mold after the above-mentioned shape adjustment.

[0043] in,

[0044] The adjustment amount of the mold of the present invention corresponds to the adjustment amount of the skin, that is, if the adjustment amount of the mold after adjustment is 0.5 mm, the adjustment amount of the skin is also 0.5 mm.

[0045] The designed gap A of the epidermis skeleton of the present invention is 2 mm, and the minimum designed gap B of the epidermis skeleton is 1.5 mm.

[0046] The adjustment amount of the adjusted skeleton 4 of the present invention is not greater than 0.5mm, and the transition ratio of the adjusted mold 5 is not greater than 1:30; preferably, the transition length F of the adjusted mold 5 is 5mm, and the skeleton adjustment is transitioned according to 1:30; the design of the above transition line can ensure that the coated product meets the data state, and there must be no surface unevenness and other marks that are not in the original data.

[0047] The IMG product produced by the pre-conditioning device of the present invention is suitable for Figure 6 The car interior parts shown.

[0048] Example:

[0049] Before the present invention is produced, it is necessary to verify the actual gap C between the skin and the skeleton of the same or similar product after hemming through a mass-produced project. If the actual gap C between the skin and the skeleton of the product or similar product is 1 mm, then:

[0050] After adjustment, the adjustment amount of the frame 4 is D=AC=1 mm;

[0051] After adjustment, the adjustment amount of the mold 5 is E=BC=0.5 mm.

[0052] like Figures 3 to 5 As shown, the present invention provides a method for pre-adjusting the coated edge of an IMG product, comprising:

[0053] Step 1, determine the design gap A of the skin skeleton; wherein the design gap A of the skin skeleton is 2 mm;

[0054] Step 2: The minimum gap B of the skin skeleton design, wherein the minimum gap B of the skin skeleton design is 1.5 mm;

[0055] Step 3: For projects that have been mass-produced, verify the actual gap C between the skin and the skeleton of the same or similar products after hemming;

[0056] Step 4: Based on the minimum gap designed for the skin skeleton, adjust the skeleton and the mold; wherein,

[0057] The adjustment amount D of the skeleton is the difference between the designed gap A of the epidermis skeleton and the actual gap C of the epidermis skeleton;

[0058] The mold adjustment amount E is the difference between the designed minimum gap B of the skin frame and the actual gap C of the skin frame;

[0059] The adjusted skeleton 4 and the adjusted mold 5 both smoothly transition from the adjustment end to the distal end; wherein, the adjustment amount of the adjusted skeleton 4 of the present invention is not greater than 0.5 mm, and the transition ratio of the adjusted mold 5 is not greater than 1:30; preferably, the transition length F of the adjusted mold 5 is 5 mm, and the skeleton adjustment is transitioned at 1:30; the design of the above transition line can ensure that the coated product meets the data state, and there must be no surface unevenness and other marks that are not in the original data.

[0060] Example:

[0061] Before the present invention is produced, it is necessary to verify the actual gap C between the skin and the skeleton of the same or similar product after hemming through a mass-produced project. If the actual gap C between the skin and the skeleton of the product or similar product is 1 mm, then:

[0062] The adjustment amount of the skeleton is D = AC = 1 mm;

[0063] The adjustment amount of the mold is E=BC=0.5mm.

[0064] The advantages of the present invention are:

[0065] The pre-adjustment device and pre-adjustment method of the present invention verify existing products and determine the adjustment amounts for adjusting the skeleton and the mold (corresponding to the epidermis) at the same time; there is no need to make manual samples, thus saving engineering verification time and mold change costs. The products produced by the pre-adjustment device of the present invention meet the size requirements.

[0066] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method for pre-adjusting the coated edge of an IMG product, characterized in that: include: Determine the design gap between the skin and the skeleton; wherein the design gap between the skin and the skeleton is 2 mm; Determine the actual gap between the skin and the frame of the IMG product based on mass-produced products; Based on the designed minimum gap between the skin and the skeleton, the skeleton and the mold are adjusted; wherein the designed minimum gap between the skin and the skeleton is 1.5 mm; The adjustment amount of the skeleton is the difference between the designed gap between the skin and the skeleton and the actual gap between the skin and the skeleton; The adjustment amount of the mold is the difference between the designed minimum gap between the skin and the skeleton and the actual gap between the skin and the skeleton; wherein the adjustment amount of the mold corresponds to the adjustment amount of the skin, and the transition ratio of the mold adjustment is not greater than 1:30.

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