CN110435173B - Manufacturing process of IMD (in-mold decoration) type automobile rolling door - Google Patents

Manufacturing process of IMD (in-mold decoration) type automobile rolling door Download PDF

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Publication number
CN110435173B
CN110435173B CN201910837289.5A CN201910837289A CN110435173B CN 110435173 B CN110435173 B CN 110435173B CN 201910837289 A CN201910837289 A CN 201910837289A CN 110435173 B CN110435173 B CN 110435173B
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glue
imd
layer
film
injection
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CN110435173A (en
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余泽民
庄吴钏
李叔明
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Dongguan Guanghua Auto Parts Technology Co ltd
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Dongguan Guanghua Auto Parts Technology Co ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14467—Joining articles or parts of a single article
    • B29C45/14508—Joining juxtaposed sheet-like articles, e.g. for making trim panels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14688—Coating articles provided with a decoration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/72—Heating or cooling
    • B29C45/73—Heating or cooling of the mould
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/10—Forming by pressure difference, e.g. vacuum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/26—Component parts, details or accessories; Auxiliary operations
    • B29C51/30—Moulds
    • B29C51/32—Moulds having cutting means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
    • B29C69/02—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore of moulding techniques only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/302—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising aromatic vinyl (co)polymers, e.g. styrenic (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B32B27/365—Layered products comprising a layer of synthetic resin comprising polyesters comprising polycarbonates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
    • B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/12—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/28—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer comprising a deformed thin sheet, i.e. the layer having its entire thickness deformed out of the plane, e.g. corrugated, crumpled
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3005—Body finishings
    • B29L2031/3014—Door linings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/412—Transparent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/558—Impact strength, toughness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/712—Weather resistant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/732—Dimensional properties
    • B32B2307/734—Dimensional stability
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00—Vehicles
    • B32B2605/08—Cars

Abstract

The invention relates to the technical field of manufacturing processes of automobile rolling doors, in particular to a manufacturing process of an IMD (in-mold decoration) type automobile rolling door, which comprises the following steps: 1. heating the adhesive film to soften the adhesive film; 2. carrying out plastic-suction forming treatment on the softened adhesive film by a plastic-suction forming method; 3. cutting the plastic film into a preset shape after plastic suction molding; 4. placing the adhesive film obtained in the step (3) into an injection mold; 5. closing the mold by an injection molding machine and injecting the molten hard glue into an injection mold, wherein the glue film and the hard glue are molded into a whole; 6. and opening the mold of the injection molding machine and taking out the injection molded product. The IMD formula car rolling slats door manufacturing process of this application replaces the flexible glue with the IMD glued membrane, and the pattern layer of IMD glued membrane can be taken care of the flower, increase the pattern and make processing such as line, increases the pluralism of IMD glued membrane. The protective film layer of IMD glued membrane can prevent that the pattern layer from being scraped flower, makes IMD glued membrane's surface reach highlight effect simultaneously. The base layer of IMD glued membrane and ebonite adhesion are firm for IMD glued membrane is difficult to take off from the ebonite.

Description

Manufacturing process of IMD (in-mold decoration) type automobile rolling door
Technical Field
The invention relates to the technical field of manufacturing processes of automobile rolling doors, in particular to a manufacturing process of an IMD (in-mold decoration) type automobile rolling door.
Background
The traditional automobile rolling door is formed by injecting hard glue and soft glue, and the specific manufacturing process comprises the following steps: firstly, hard glue is molded through injection, then the hard glue is embedded into an injection mold, an injection molding machine closes the mold and injects soft glue into the injection mold, the soft glue and the hard glue are molded into a whole through injection, and finally the injection molding machine opens the mold and takes out an injection molding product. Because the surface of soft gum (TPE, a kind of thermoplastic elastomer material) is more level and smooth, it is difficult to bite flower, increase pattern and make line on the soft gum surface, the surface of the soft gum can not reach the highlight effect simultaneously, and the soft gum drops from the ebonite easily moreover.
Disclosure of Invention
The technical problem to be solved by the invention is to provide an IMD type automobile rolling door manufacturing process, wherein IMD glue films are used for replacing soft glue in the IMD type automobile rolling door manufacturing process, pattern layers of the IMD glue films can be subjected to treatments of pattern biting, pattern increasing, grain manufacturing and the like, different patterns and colors can be displayed on the surfaces of the IMD glue films, and diversification of the IMD glue films is increased. The protective film layer of IMD glued membrane can prevent that the pattern layer from being scraped flower, makes IMD glued membrane's surface reach highlight effect simultaneously. The base layer of IMD glued membrane and ebonite adhesion are firm for IMD glued membrane is difficult to take off from the ebonite.
In order to solve the technical problems, the invention adopts the following technical scheme:
an IMD type automobile rolling door manufacturing process comprises the following steps:
step (1): heating the adhesive film to soften the adhesive film;
step (2): carrying out plastic-suction shaping treatment on the softened adhesive film by a plastic-suction forming method;
and (3): cutting the plastic film into a preset shape after plastic suction molding;
and (4): placing the adhesive film obtained in the step (3) into an injection mold;
and (5): closing the mold by an injection molding machine and injecting the molten hard glue into an injection mold, wherein the glue film and the hard glue are molded into a whole;
and (6): and opening the mold of the injection molding machine and taking out the injection molded product.
Further, the step (5) also comprises the step (5a) of introducing cooling water into a cooling water channel of the injection mold after the glue film and the hard glue are subjected to injection molding, and stopping introducing the cooling water into the cooling water channel after the injection molded product is cooled to 75-85 ℃; and (5) naturally cooling the injection molding product in the injection mold for 5-8 s, and then entering the step (6).
Further, the step (5) further comprises a step (5 b): and in the injection molding process of the glue film and the hard glue, the injection molding machine applies pressure maintaining pressure to the injection mold.
Further, the injection molding product comprises an adhesive film and hard glue injection-molded on the adhesive film; the adhesive film comprises a plurality of curtain strip units, each curtain strip unit comprises a plane part and two connecting bending parts, the two connecting bending parts are respectively connected to two ends of the plane part, and the connecting bending part of one curtain strip unit is used for connecting the connecting bending parts of the adjacent curtain strip units; plane portion and two are connected the kink and enclose and establish into first recess, and the one end of ebonite is connected in the first recess wall of glued membrane.
Further, the adhesive film comprises a hardened protective film layer, a pattern layer and a base layer from top to bottom; the hardened protective film layer is made of PC material, and the base layer is made of ABS material.
Further, a reticular PC layer is arranged below the base layer.
Further, two adjacent enclose after being connected the kink of curtain strip unit and establish into the second recess, the connection kink of two adjacent curtain strip units encloses with the ebonite of two adjacent curtain strip units and establishes into the third recess, and the opening direction of second recess is opposite with the opening direction of third recess.
Furthermore, the second groove is provided with a first soft rubber layer which is respectively connected with the connecting bending parts of the two adjacent curtain strip units.
Furthermore, the third recess is provided with the soft glue layer of second, and the soft glue layer of second connects in the connection kink and the ebonite of two adjacent curtain strip units respectively.
Furthermore, two adjacent curtain strip unit connect the radium-shine carving of kink and go out a fourth recess, the second flexible glue layer is connected respectively in the connection kink and the ebonite of two adjacent curtain strip units, and the second flexible glue layer is suddenly stretched into the fourth recess.
The invention has the beneficial effects that: the injection molding product is the IMD type automobile rolling door structure. This application replaces the flexible glue through the IMD glued membrane, and the IMD glued membrane includes protection film layer, pattern layer and the basic unit of sclerosis. The pattern layer can be bitten into flower, increase the pattern and make processing such as line, and the surface of IMD glued membrane can show different pattern and color, increases the pluralism of IMD glued membrane. The hardened protective film layer can prevent the pattern layer from being scratched, the hardened protective film layer is made of a PC material, the PC material has the advantages of being good in transparency, high in surface gloss, high in mechanical strength, good in toughness, good in heat resistance and weather resistance and the like, and the hardened protective film layer enables the surface of the IMD adhesive film to achieve a highlight effect. The base layer is made of ABS material, the ABS material has the characteristics of easiness in forming and processing, low shrinkage rate, strong dimensional stability and the like, and after the glue film and the hard glue are molded into a whole, the hard glue is firmly adhered to the base layer, so that the IMD glue film is not easy to fall off from the hard glue. The specific process steps comprise the following steps of (1): heating the adhesive film to soften the adhesive film; step (2): carrying out plastic-suction forming treatment on the softened adhesive film by a plastic-suction forming method; and (3): cutting the plastic film into a preset shape after plastic suction molding; and (4): placing the adhesive film obtained in the step (3) into an injection mold; and (5): closing the mold by an injection molding machine and injecting the molten hard glue into an injection mold, wherein the glue film and the hard glue are molded into a whole; and (6): and opening the mold of the injection molding machine and taking out the injection molded product. The IMD type automobile rolling door manufacturing process does not need to perform subsequent treatment of spraying, polishing and grinding on the adhesive film, simplifies the operation flow of the process, and has the characteristics of energy conservation and environmental protection, and pollutants generated by the IMD type automobile rolling door manufacturing process are few.
Drawings
Fig. 1 is a schematic structural view of an injection molded product of the present invention.
FIG. 2 is a schematic view of the structure of the adhesive film of the present invention.
Fig. 3 is a schematic structural diagram of a first embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a second embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a third embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a fourth embodiment of the present invention.
Description of reference numerals:
glued membrane 1, plane portion 11 connects kink 12, second recess 121, third recess 122, first soft glue layer 123, second soft glue layer 124, fourth recess 125, first recess 13, protection rete 14, pattern layer 15, basic unit 16, netted PC layer 17, metal strip 18, ebonite 2, logical groove 21.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.
As shown in fig. 1 and fig. 2, the manufacturing process of the IMD type automobile rolling door provided by the invention comprises the following steps:
step (1): heating the adhesive film to soften the adhesive film;
step (2): carrying out plastic-suction shaping treatment on the softened adhesive film by a plastic-suction forming method;
and (3): cutting the plastic film into a preset shape after plastic suction molding;
and (4): placing the adhesive film obtained in the step (3) into an injection mold;
and (5): closing the mold by an injection molding machine and injecting the molten hard glue into an injection mold, wherein the glue film and the hard glue are molded into a whole;
and (6): and opening the mold of the injection molding machine and taking out the injection molded product.
The injection molding product is the IMD type automobile rolling door structure. This application replaces the flexible glue through the IMD glued membrane, and the IMD glued membrane includes the protection rete 14, the pattern layer 15 and the basic unit 16 of sclerosis. The pattern layer 15 can be used for carrying out treatments such as texture, pattern increasing, grain manufacturing and the like, the surface of the IMD adhesive film can display different patterns and colors, and the diversification of the IMD adhesive film is increased. The hardened protective film layer 14 can prevent the pattern layer 15 from being scratched, the hardened protective film layer 14 is made of a PC material, the PC material has the characteristics of good transparency, high surface gloss, high mechanical strength, good toughness, good heat resistance and good weather resistance, and the hardened protective film layer 14 enables the surface of the IMD adhesive film to achieve a highlight effect. The base layer 16 is made of ABS material, the ABS material has the characteristics of easy forming and processing, low shrinkage rate, strong dimensional stability and the like, and after the glue film and the hard glue are molded into a whole, the hard glue is firmly adhered to the base layer 16, so that the IMD glue film is not easy to fall off from the hard glue. The specific process steps comprise the following steps of (1): heating the adhesive film to soften the adhesive film; step (2): carrying out plastic-suction shaping treatment on the softened adhesive film by a plastic-suction forming method; and (3): cutting the plastic film into a preset shape after plastic suction molding; and (4): placing the adhesive film obtained in the step (3) into an injection mold; and (5): closing the mold by an injection molding machine and injecting the molten hard glue into an injection mold, wherein the glue film and the hard glue are molded into a whole; and (6): and opening the mold of the injection molding machine and taking out the injection molded product. The IMD type automobile rolling door manufacturing process does not need to perform subsequent treatment of spraying, polishing and grinding on the adhesive film, simplifies the operation flow of the process, and has the characteristics of energy conservation and environmental protection, and pollutants generated by the IMD type automobile rolling door manufacturing process are few.
As shown in fig. 1 and 2, in this embodiment, the step (5) further includes a step (5a) of introducing cooling water into a cooling water channel of the injection mold after the plastic film and the hard glue are injection molded, and stopping introducing cooling water into the cooling water channel after the injection molded product is cooled to 75 ℃ to 85 ℃; and (5) naturally cooling the injection molding product in the injection mold for 5-8 s, and then entering the step (6).
In the actual manufacturing process, the glue film and the hard glue need to be cooled and shaped after injection molding, but when the cooling temperature is too fast, the hardened protective film layer 14 and the hardened pattern layer 15 are easy to warp and deform, so that the pattern of the pattern layer 15 is distorted, and the appearance of the pattern layer 15 is affected. The manufacturing process of the application adopts two-section type cooling, the first section cooling is rapid cooling, cooling water is introduced into a cooling water channel of the injection mold, the heat of the injection mold and an injection molding product is taken away by the cooling water rapidly, when the temperature of the injection molding product is reduced to 75-85 ℃, the preferred temperature is reduced to 80 ℃, and the cooling water is stopped being introduced into the cooling water channel. As the hardened protective film layer 14 and the pattern layer 15 are easy to warp and deform due to too fast temperature reduction in the range of 75-55 ℃, the temperature reduction in the second stage is slow, and the injection molding product is naturally cooled for 5-8 s in the injection mold in the range of 75-55 ℃, so that the injection molding product is naturally cooled to 55 ℃ or below 55 ℃ in the injection mold, the warp and deformation phenomena of the hardened protective film layer 14 and the pattern layer 15 are obviously reduced by adopting the two-stage temperature reduction, the patterns of the pattern layer 15 are protected, and the distortion phenomenon of the patterns is avoided.
As shown in fig. 1 and 2, in this embodiment, the step (5) further includes a step (5 b): and in the injection molding process of the glue film and the hard glue, the injection molding machine applies pressure maintaining pressure to the injection mold. In the actual manufacturing process, the buckling deformation of the hardened protective film layer 14 and the hardened pattern layer 15 is obviously reduced along with the increase of the holding pressure, so that in the process of injection molding of the glue film and the hard glue, the injection molding machine applies the holding pressure to the injection mold to reduce the shrinkage rate of the hardened protective film layer 14 and the hardened pattern layer 15 and reduce the shrinkage of the hardened protective film layer 14 and the hardened pattern layer 15, thereby reducing the buckling deformation of the hardened protective film layer 14 and the hardened pattern layer 15.
As shown in fig. 1 and fig. 2, in the present embodiment, the injection molded product includes a glue film 1 and a hard glue 2 injection-molded on the glue film 1; the adhesive film 1 comprises a plurality of curtain strip units, each curtain strip unit comprises a plane part 11 and two connecting and bending parts 12, the two connecting and bending parts 12 are respectively connected to two ends of the plane part 11, and the connecting and bending part 12 of one curtain strip unit is used for connecting the connecting and bending part 12 of the other adjacent curtain strip unit; the plane part 11 and the two connecting and bending parts 12 are enclosed to form a first groove 13, and one end of the hard glue 2 is connected to the first groove wall of the glue film 1.
Injection moulding product's simple structure, plane portion 11 is convenient makes the pattern on glued membrane 1, and two are connected kink 12 and are made things convenient for a plurality of glued membranes 1 to connect, and plane portion 11 and two are connected kink 12 and enclose to establish into first recess 13 and enable ebonite 2 and connect in glued membrane 1 firmly, let glued membrane 1 and ebonite 2 be difficult to the separation. The bend angle of the connecting bend portion 12 facilitates the demolding of the injection molded product.
As shown in fig. 1 and fig. 2, in the present embodiment, a through groove 21 is recessed in the hard adhesive 2, and the through groove 21 penetrates through the hard adhesive 2. The through grooves 21 are concavely formed in the hard rubber 2, so that the manufacturing materials of the hard rubber 2 can be reduced, and the manufacturing cost of the hard rubber 2 is reduced.
As shown in fig. 1 and fig. 2, in the present embodiment, the adhesive film 1 includes, from top to bottom, a hardened protective film layer 14, a pattern layer 15 and a base layer 16; the hardened protective film layer 14 is made of a PC material and the base layer 16 is made of an ABS material.
The pattern layer 15 can be processed by embossing, pattern increasing, grain manufacturing and the like, the surface of the adhesive film 1 can display different patterns and colors, and diversification of the adhesive film 1 is increased. The hardened protective film layer 14 can prevent the pattern layer 15 from being scratched, the hardened protective film layer 14 is made of a PC material, the PC material has the characteristics of good transparency, high surface gloss, high mechanical strength, good toughness, good heat resistance and good weather resistance, and the hardened protective film layer 14 enables the surface of the adhesive film 1 to achieve a highlight effect. The base layer 16 is made of ABS material, the ABS material has the characteristics of easiness in forming and processing, low shrinkage rate, strong dimensional stability and the like, and after the glue film 1 and the hard glue 2 are molded into a whole by injection, the hard glue 2 is firmly adhered to the base layer 16, so that the glue film 1 is not easy to fall off from the hard glue 2.
As shown in fig. 1 and 2, in the present embodiment, a mesh PC layer 17 is disposed below the base layer 16. The mesh PC layer 17 is a honeycomb mesh, a square mesh or a circular mesh. In this embodiment, make full use of the characteristics of these two kinds of materials of PC material and ABS material, on the one hand, the PC material has mechanical strength height, the toughness is good and characteristics such as heat-resisting weatherability are good, netted PC layer 17 can increase the mechanical strength of basic unit 16, let the shape of basic unit 16 be difficult for warping deformation because of the decline of temperature, on the other hand, the ABS material has characteristics such as easy forming process, the shrinkage factor is low and dimensional stability is strong, ebonite 2 is connected with basic unit 16 via the mesh, make ebonite 2 firm with basic unit 16 adhesion, make glued membrane 1 be difficult to drop from ebonite 2.
As shown in fig. 1 and 2, in the present embodiment, a plurality of metal strips 18 are disposed in the base layer 16, and the plurality of metal strips 18 are all disposed in parallel. The metal strip 18 is a steel strip, an iron strip, a copper strip or an aluminum strip. In practice, the plurality of metal strips 18 can increase the mechanical strength of the base layer 16, so that the shape of the base layer 16 is not easily warped and deformed due to temperature reduction, and the injection molded product is not broken when being collided. The steel bars, the iron bars, the copper bars or the aluminum bars are common metals in the market, and are easy to purchase and low in cost. Specifically, in the process of arranging the plurality of metal strips 18 in the base layer 16, the plurality of metal strips 18 are heated, and then the plurality of heated metal strips 18 are placed in the base layer 16, so that the material performance of the base layer 16 cannot be changed by adding the plurality of metal strips 18. Since the plurality of metal strips 18, which are not heated, easily absorb heat of the melted base layer 16, the melted base layer 16 changes material properties of the base layer 16 due to a rapid decrease in local temperature, so that the shrinkage rate of the base layer 16 becomes large and the dimensional stability becomes weak.
As shown in fig. 3 and 6, the connecting folded part 12 of two adjacent curtain strip units is connected and then enclosed to form a second groove 121, the connecting folded part 12 of two adjacent curtain strip units and the hard glue 2 of two adjacent curtain strip units are enclosed to form a third groove 122, and the opening direction of the second groove 121 is opposite to the opening direction of the third groove 122. In the using process, the adhesive film 1 needs to be pulled frequently, and the adhesive film 1 is easy to bend and break in the pulling process, so that the adhesive film 1 cannot work normally.
The application adopts the following four embodiments to solve the problem of the breakage of the adhesive film 1, embodiment one: as shown in fig. 3, in this embodiment, the second groove 121 is provided with a first soft adhesive layer 123, and the first soft adhesive layer 123 is respectively connected to the connecting bending portion 12 of two adjacent curtain strip units. The first soft glue layer 123 increases the connection strength of the connection bending part 12 of the two adjacent curtain strip units, so that the connection bending part 12 of the two adjacent curtain strip units can be connected together in a fastening manner, the glue film 1 is not easy to bend and break in the process of being pulled, and the glue film 1 can work normally.
Example two: as shown in fig. 4, in this embodiment, the third groove 122 is provided with a second soft adhesive layer 124, and the second soft adhesive layer 124 is respectively connected to the connecting bending portion 12 and the hard adhesive 2 of two adjacent curtain strip units. The second soft adhesive layer 124 increases the connection strength of the connection bending part 12 of the two adjacent curtain strip units, so that the connection bending part 12 of the two adjacent curtain strip units can be connected together in a fastening manner, the adhesive film 1 is not easy to bend and break in the process of being pulled, and the adhesive film 1 can work normally.
Example three: as shown in fig. 5, in this embodiment, two adjacent connection bending portions 12 of the curtain strip units are laser engraved with a fourth groove 125, the second soft adhesive layer 124 is respectively connected to the connection bending portions 12 and the hard adhesive 2 of the two adjacent curtain strip units, and meanwhile, a part of the second soft adhesive layer 124 protrudes into the fourth groove 125, and the second soft adhesive layer 124 increases the connection strength of the connection bending portions 12 of the two adjacent curtain strip units, so that the connection bending portions 12 of the two adjacent curtain strip units can be firmly connected together, so that the adhesive film 1 is not easily bent and broken in the process of being pulled, and the adhesive film 1 can normally work.
Example four: as shown in fig. 6, in this embodiment, the second groove 121 is provided with a first soft adhesive layer 123, and the first soft adhesive layer 123 is respectively connected to the connecting bending portion 12 of two adjacent curtain strip units. The third groove 122 is provided with a second soft adhesive layer 124, and the second soft adhesive layer 124 is respectively connected to the connecting bending part 12 and the hard adhesive 2 of two adjacent curtain strip units. The first soft adhesive layer 123 and the second soft adhesive layer 124 increase the connecting strength of the connecting and bending part 12 of the two adjacent curtain strip units, so that the connecting and bending part 12 of the two adjacent curtain strip units can be connected together firmly, the adhesive film 1 is not easy to bend and break in the process of being pulled, and the adhesive film 1 can work normally.
All the technical features in the embodiment can be freely combined according to actual needs.
The above embodiments are preferred implementations of the present invention, and the present invention can be implemented in other ways without departing from the spirit of the present invention.

Claims (4)

1. The IMD type automobile rolling door manufacturing process is characterized in that: the method comprises the following steps:
step (1): heating the adhesive film to soften the adhesive film;
step (2): carrying out plastic-suction shaping treatment on the softened adhesive film by a plastic-suction forming method;
and (3): cutting the plastic film into a preset shape after plastic suction molding;
and (4): placing the adhesive film obtained in the step (3) into an injection mold;
and (5): closing the mold by an injection molding machine and injecting the molten hard glue into an injection mold, wherein the glue film and the hard glue are molded into a whole;
step (5a), after the glue film and the hard glue are subjected to injection molding, introducing cooling water into a cooling water channel of an injection mold, and stopping introducing the cooling water into the cooling water channel after an injection molded product is cooled to 75-85 ℃; naturally cooling the injection molding product in an injection mold for 5-8 s;
and (6): opening the mold of the injection molding machine and taking out the injection molded product;
the adhesive film comprises a hardened protective film layer, a pattern layer and a base layer from top to bottom; the hardened protective film layer is made of a PC material, the base layer is made of an ABS material, and a reticular PC layer is arranged below the base layer;
the injection molding product comprises a glue film and hard glue injection-molded on the glue film; the adhesive film comprises a plurality of curtain strip units, each curtain strip unit comprises a plane part and two connecting bending parts, the two connecting bending parts are respectively connected to two ends of the plane part, and the connecting bending part of one curtain strip unit is used for connecting the connecting bending parts of the adjacent curtain strip units; the plane part and the two connecting bending parts are surrounded to form a first groove, and one end of the hard glue is connected to the wall of the first groove of the glue film;
the connecting and bending parts of the two adjacent curtain strip units are connected and then enclosed to form a second groove, the connecting and bending parts of the two adjacent curtain strip units and the hard glue of the two adjacent curtain strip units are enclosed to form a third groove, and the opening direction of the second groove is opposite to that of the third groove;
the second groove is provided with a first soft rubber layer which is respectively connected to the connecting bent parts of the two adjacent curtain strip units;
the third recess is provided with the soft glue layer of second, and the soft glue layer of second connects respectively in the connection kink and the ebonite of two adjacent curtain strip units.
2. The manufacturing process of the IMD-type automobile rolling door according to claim 1, wherein the manufacturing process comprises the following steps: the step (5) further comprises a step (5 b): and in the injection molding process of the glue film and the hard glue, the injection molding machine applies pressure maintaining pressure to the injection mold.
3. The manufacturing process of the IMD-type automobile rolling door according to claim 1, wherein the manufacturing process comprises the following steps: two adjacent the radium-shine carving of connection kink of curtain strip unit produces a fourth recess, and the second flexible glue layer is connected respectively in the connection kink and the ebonite of two adjacent curtain strip units, and the second flexible glue layer is suddenly stretched into the fourth recess.
4. The manufacturing process of the IMD-type automobile rolling door according to claim 1, wherein the manufacturing process comprises the following steps: a plurality of metal strips are arranged in the base layer; in the process of arranging a plurality of metal strips in the base layer, the plurality of metal strips are heated firstly, and then the heated plurality of metal strips are placed into the base layer.
CN201910837289.5A 2019-09-05 2019-09-05 Manufacturing process of IMD (in-mold decoration) type automobile rolling door Active CN110435173B (en)

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CN111844613A (en) * 2020-07-27 2020-10-30 东莞广华汽车饰件科技有限公司 Method for manufacturing automobile rolling door

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CN107336480A (en) * 2017-06-27 2017-11-10 东莞市海旭新材料技术有限公司 Automotive upholstery based on prepreg carbon fibre composite and preparation method thereof
CN108927947A (en) * 2017-05-17 2018-12-04 费希尔汽车系统有限责任两合公司 Roller shutter and its manufacturing method
CN208827266U (en) * 2018-08-10 2019-05-07 浙江道明光电科技有限公司 A kind of flash of light interior trim film

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CN101797789A (en) * 2009-09-22 2010-08-11 欧阳雷 Shape self-adaptive in-mold decorating method
CN101804684A (en) * 2010-02-10 2010-08-18 上海名盛汽车饰件有限公司 In-mould decorating injection moulding method and mould
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