CN111844778A - Method for attaching surface skin of vehicle door interior trim panel - Google Patents
Method for attaching surface skin of vehicle door interior trim panel Download PDFInfo
- Publication number
- CN111844778A CN111844778A CN202010461796.6A CN202010461796A CN111844778A CN 111844778 A CN111844778 A CN 111844778A CN 202010461796 A CN202010461796 A CN 202010461796A CN 111844778 A CN111844778 A CN 111844778A
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- CN
- China
- Prior art keywords
- skin
- double
- sided adhesive
- attaching
- interior
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
- B29C65/5042—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like covering both elements to be joined
- B29C65/505—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like covering both elements to be joined and placed in a recess formed in the parts to be joined, e.g. in order to obtain a continuous surface
-
- 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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
- B29C65/5092—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like characterised by the tape handling mechanisms, e.g. using 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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
- B29C65/64—Joining a non-plastics element to a plastics element, e.g. by force
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
- B29C66/022—Mechanical pre-treatments, e.g. reshaping
- B29C66/0222—Mechanical pre-treatments, e.g. reshaping without removal of material, e.g. cleaning by air blowing or using brushes
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
- B29C66/028—Non-mechanical surface pre-treatments, i.e. by flame treatment, electric discharge treatment, plasma treatment, wave energy or particle radiation
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/03—After-treatments in the joint area
- B29C66/032—Mechanical after-treatments
- B29C66/0324—Reforming or reshaping the joint, e.g. folding over
-
- 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
- B29L2031/58—Upholstery or cushions, e.g. vehicle upholstery or interior padding
Abstract
The invention discloses a method for attaching a surface skin of an interior trim panel of a vehicle door, which is characterized by comprising the following steps of: (1) compounding double-sided adhesive tape on the surface skin; (2) pricking dense and fine holes on the double-sided adhesive layer on the surface; (3) processing the template by an electric spark process; (4) the surface is jointed with the large surface of the template; (5) and (5) flanging. The invention has high processing efficiency, can be suitable for automobile interior parts with various shapes, obviously reduces harmful substances by compounding the double faced adhesive tape, is more environment-friendly compared with the traditional adhesive tape spraying mode, and can effectively save the production cost because the product processed by the method has low reject ratio.
Description
Technical Field
The invention relates to the technical field of production of automotive interior parts, in particular to a method for attaching a skin of an automotive door interior trim panel.
Background
In order to improve the product grade of many automotive interior parts, various skins are often coated on a template according to the requirements of the products. The traditional automotive interior parts are basically characterized in that a spray gun firstly sprays solvent glue or water-based glue on the back surface of a surface skin and the front surface of a template, and then the surface skin is attached to the template; or spraying hot melt adhesive on the back surface of the surface skin and the front surface of the template, heating to activate the adhesive when in use, and then attaching the adhesive to the template.
The automobile interior decoration adopts the processing mode of glue spraying, so that the condition of uneven glue spraying is easy to occur, the product reject ratio is higher, and the processing period is longer. In addition, the interior trim part template has the place that the slot is too deep to spout the glue and can't spout into.
In addition, the compound hot melt adhesive in automotive interior spare epidermis back must heat just can activate the colloid, and the hot melt adhesive cooling is also very fast simultaneously, and is long to some complicated molding cladding process cycles, and easy inefficacy is unfavorable for improving production efficiency.
Disclosure of Invention
The invention aims to provide a method for attaching the surface skin of the vehicle door trim panel, which has high production efficiency and low reject ratio, aiming at the defects of the prior art.
The technical scheme adopted by the invention is as follows:
a method for attaching the surface skin of an interior trim panel of a vehicle door is characterized by comprising the following steps:
(1) compounding double-sided adhesive tape on the back of the surface skin;
(2) putting the epidermis compounded with the double-sided adhesive into a puncture machine for puncture, wherein the puncture is to puncture the double-sided adhesive layer on the epidermis into dense and fine holes;
(3) placing the interior plate into an electric spark jig, and performing discharge treatment on the complex modeling part of the interior plate through an electric spark process;
(4) placing the punctured surface skin with the front side facing downwards into a surface skin attaching jig, placing the attaching surface of the interior decoration template treated by the electric spark process with the attaching surface facing downwards into a movable die, and then pressing down the movable die to attach the surface skin to the large surface of the interior decoration template;
(5) And taking out the interior trimming plate attached with the surface skin, and performing flanging treatment on the surface skin beyond the edge of the interior trimming plate.
The double-sided adhesive tape in the step (1) is low-VOC acrylic acid double-sided adhesive tape.
And (5) flanging treatment in the step (5) is to start the pneumatic inserted knife upper punch to punch the skin flanging into a reserved gap of the interior trimming template.
The invention has the following beneficial effects:
1. the invention has the advantages of rapid processing and high production efficiency. The processing time of spraying the traditional solvent-based glue is about 220S from glue spraying to preparation completion, the glue spraying time of the traditional water-based glue is about 400S, the time of spraying the traditional hot melt glue is about 220S, and the invention only needs 60S.
2. The invention has simple process, less personnel and high economic benefit. The invention only needs 2 persons to process, and the traditional procedure needs the in-line spraying/gluing and baking procedures, at least more than 4 persons.
3. The invention can realize the rapid embedding process of the groove structure, avoids the defect that the traditional glue can not be rapidly sprayed into the groove, can integrate products to improve the strength performance of the products, the processing cost of the parts and the number of dies, simplifies the design, improves the performance and reduces the product cost.
4. Compared with a solvent-spraying adhesive mode, the invention is more environment-friendly, and the harmful VOC (volatile organic compounds) is obviously reduced by compounding the double faced adhesive tape. The acetaldehyde content of the traditional solvent-spraying glue process is 2.025 mu g/bag, the toluene content is 0.731 mu g/bag, and the acetaldehyde content is 1.275 mu g/bag and the toluene content is 0.342 mu g/bag by adopting a composite double-sided glue process.
5. The invention adopts a method of puncturing the adhesive film layer, can effectively realize the function of laminating and exhausting, improves the bonding strength, avoids the occurrence of failure mode, and reduces the bad proportion from the original 6 percent to 2.2 percent.
6. The invention adopts the peripheral automatic embedding and automatic edge covering technology, improves the production efficiency and the yield, adopts the pneumatic embedding knife to turn the flanging into the gap in one step, does not have the embedding knife to turn the flanging manually by using a tool, is easy to scratch the template by the tool, and has low speed and high reject ratio. The instability of manual inlaying or manual edge covering is avoided, and the occurrence of defects is avoided. The reject ratio of the product is reduced from 2 percent to 0.5 percent.
7. The invention adds an electric spark process to discharge and release on the surface of the template, activates the surface polarity of the PP material, improves the surface dyne coefficient and makes the surface of the template have stronger adhesiveness.
8. The invention adopts the pneumatic insert, has strong insert force, is successful once, has no damage, has the product reject ratio of 2 percent caused by the traditional manual flanging, can reduce the product reject ratio to 0.5 percent, and effectively saves the production cost.
Drawings
Fig. 1 is a schematic structural view of the puncture machine of the present invention.
Fig. 2 is a schematic diagram of the steps of the electric discharge process of the present invention.
Fig. 3 is a schematic view of the present invention when using a pneumatic insert.
Detailed Description
The invention will be further illustrated with reference to specific examples:
example 1:
(1) compounding a low-VOC (volatile organic compound) acrylic non-woven fabric substrate double-faced adhesive tape on the back of the surface skin;
(2) the back of the epidermis compounded with the double-sided adhesive is placed upwards to be punctured in a puncturing machine, and because the density of the double-sided adhesive layer is high, a layer of film is formed, air is easily wrapped in the double-sided adhesive layer during cladding and is not discharged out, so that the bulging phenomenon is caused, dense and tiny holes are punctured in the double-sided adhesive layer by the puncturing machine, the cladding processing is convenient, and the trapping of air and the bulging during cladding can be prevented;
(3) putting the PP material interior plate into an electric spark jig, and carrying out spark treatment on the complex modeling part of the PP material interior plate through an electric spark process (as shown in figure 2), so that the adhesion force is stronger when the electric spark area on the plate is attached to the surface skin;
(4) placing the punctured skin with the front surface facing downwards into a skin attaching jig, placing the attaching surface of the PP material interior decoration template treated by the electric spark process with the attaching surface facing downwards into a movable die, and then pressing down the movable die to attach the skin to the large surface of the PP material interior decoration template;
(5) starting the pneumatic insert 5, punching the skin turning sheet on the pneumatic insert 5 into a reserved gap 6 of the PP material template (as shown in figure 3);
(6) And (5) manually turning the residual turned edge by a worker to obtain the automobile door interior trimming panel product attached with the skin.
As shown in figure 1, the structure of the puncture machine comprises a workbench 1 for placing the epidermis, a puncture needle plate 2 capable of descending is arranged above the workbench 1, puncture needles 3 are arranged on the bottom surface of the puncture needle plate 2, the puncture needle plate 2 can be driven by a hydraulic cylinder, a pneumatic cylinder or a motor, and the puncture needle plate 2 can descend to puncture dense pores on a double-sided adhesive layer on the back surface of the epidermis 4 through the puncture needles 3.
Example 2:
(1) compounding the low-VOC substrate-free double-sided adhesive tape on the back of the surface skin;
(2) placing the surface of the skin compounded with the double-sided adhesive tape into a puncture machine with the back face upward for puncture, and puncturing dense and fine holes in the double-sided adhesive layer by using the puncture machine;
(3) placing the punctured surface skin with the front side facing downwards into a surface skin attaching jig, placing the attaching surface of the ABS material interior trimming template with the attaching surface facing downwards into a movable die, and then pressing down the movable die to attach the surface skin to the large surface of the ABS interior trimming template;
(4) starting the pneumatic inserted knife, and punching the skin turning sheet into a reserved gap of the template by using an upper punch of the pneumatic inserted knife;
(5) and starting the automatic flanging mechanism to flange the surface skin, and taking out the product by a worker to obtain the automobile door interior trim panel product attached with the surface skin.
Example 3:
(1) compounding double-sided adhesive tape on the back of the surface skin;
(2) the processing is carried out on the template with a moderate shape, so that the puncture needles in the area which is not easy to bulge can be detached, or part of the puncture needles can be detached to increase the needle spacing, and the specific spacing can be adjusted as required. Placing the surface of the skin compounded with the double-sided adhesive tape into a puncture machine to puncture with the back facing upwards, and puncturing small holes in the double-sided adhesive tape by using the puncture machine;
(3) putting the PP material interior plate into an electric spark jig, and performing discharge treatment on the complex modeling part of the interior plate through an electric spark process to ensure that the electric spark area on the plate has stronger adhesive force when being attached to the surface skin;
(4) placing the punctured skin with the front surface facing downwards into a skin attaching jig, placing the attaching surface of the PP material interior decoration template treated by the electric spark process with the attaching surface facing downwards into a movable die, and then pressing down the movable die to attach the skin to the large surface of the PP material interior decoration template;
(5) and (5) manually turning the residual turned edge by a worker to obtain the automobile door interior trimming panel product attached with the skin.
Other undescribed portions of the present invention are the same as the prior art.
Claims (4)
1. A method for attaching the surface skin of an interior trim panel of a vehicle door is characterized by comprising the following steps:
(1) Compounding double-sided adhesive tape on the back of the surface skin;
(2) putting the epidermis compounded with the double-sided adhesive into a puncture machine for puncture, wherein the puncture is to puncture the double-sided adhesive layer on the epidermis into dense and fine holes;
(3) placing the interior plate into an electric spark jig, and performing discharge treatment on the complex modeling part of the interior plate through an electric spark process;
(4) placing the punctured surface skin with the front side facing downwards into a surface skin attaching jig, placing the attaching surface of the interior decoration template treated by the electric spark process with the attaching surface facing downwards into a movable die, and then pressing down the movable die to attach the surface skin to the large surface of the interior decoration template;
(5) and taking out the interior trimming plate attached with the surface skin, and performing flanging treatment on the surface skin beyond the edge of the interior trimming plate.
2. The method of claim 1, wherein the double-sided adhesive tape in step (1) is a low VOC acrylic double-sided adhesive tape.
3. The method for attaching the skin of the vehicle door trim panel according to claim 1, wherein the structure of the needle loom in the step (2) comprises a workbench (1) for placing the skin, a needle board (2) capable of descending is arranged above the workbench (1), a plurality of needles (3) are arranged on the bottom surface of the needle board (2), and the needle board (2) can descend to pierce dense pores on the double-sided adhesive layer on the back surface of the skin (4) through the needles (3).
4. The method for attaching the skin of the door trim panel according to claim 1, wherein the flanging in the step (5) is performed by firstly starting a pneumatic insert upper punch to punch the skin flange into a reserved gap of the trim panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010461796.6A CN111844778A (en) | 2020-05-27 | 2020-05-27 | Method for attaching surface skin of vehicle door interior trim panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010461796.6A CN111844778A (en) | 2020-05-27 | 2020-05-27 | Method for attaching surface skin of vehicle door interior trim panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111844778A true CN111844778A (en) | 2020-10-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010461796.6A Pending CN111844778A (en) | 2020-05-27 | 2020-05-27 | Method for attaching surface skin of vehicle door interior trim panel |
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| Country | Link |
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| CN (1) | CN111844778A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114179375A (en) * | 2021-12-10 | 2022-03-15 | 广州特拓新材料科技有限公司 | Production method of automobile instrument table board decorative plate and product obtained by production method |
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| CN114179375A (en) * | 2021-12-10 | 2022-03-15 | 广州特拓新材料科技有限公司 | Production method of automobile instrument table board decorative plate and product obtained by production method |
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Application publication date: 20201030 |