Leather pasting method for automotive trim injection molding part

Abstract

The invention discloses a leather pasting method for an automotive trim injection molding part. The leather pasting method comprises the following steps that a controller controls a discharging mechanism to drive a leather pasting material belt to conduct conveying; then, the leather pasting material belt penetrates through the first detector, the first detector detects all the leather pasting parts on the leather pasting material belt in sequence to obtain all first detection information, and all the first detection information is sent to the controller; then the controller obtains the moving distance of each veneer adhering part based on the first detection information, and the controller controls the discharging mechanism to sequentially convey the veneer adhering parts to the adhering positions in the adhering mold based on the moving distances of the veneer adhering parts; then the controller controls the attaching mold to enable the veneer attaching part and the automotive trim injection molding part to be attached and formed; and after the veneering material belt is output from the discharging opening of the laminating mold, waste is collected. According to the leather pasting method for the automotive trim injection-molded part, it can be guaranteed that the leather pasting part on the leather pasting material belt is accurately conveyed to the pasting position, and the situations that the pasting precision is low, and waste products are generated are avoided.

Description

Technical Field

[0001] The present application relates to the technical field of automobile interior decoration, and in particular to a method for coating automobile interior decoration injection molded parts. Background Art

[0002] Automobile interior is an important part of automobile body, and automobile interior injection molding is a common automobile interior molding. At present, in order to improve the comfort and safety of automobile interior injection molding, the surface of automobile interior injection molding is covered with leather. The corresponding leather-covering strip is provided with leather-covering parts in sequence along its length. The leather-covering parts on the leather-covering strip are first conveyed to the bonding position in the bonding mold in sequence, and then the bonding mold bonds the leather-covering parts with the corresponding automobile interior injection molding to form. However, the existing methods of skinning automobile interior injection molding are to control the fixed distance of the leather-covering strip each time it is conveyed, which easily causes the position of the leather-covering part on the leather-covering strip in the bonding mold to be wrong, resulting in low bonding accuracy, waste, etc., which increases costs and cannot meet the increasingly high production needs. Summary of the invention

[0003] The purpose of this application is to propose a method for skinning automobile interior injection molded parts, which ensures that the skinning portion on the skinning material strip is accurately transported to the bonding position in the bonding mold, avoids the skinning portion of the skinning material strip being positioned incorrectly in the bonding mold, resulting in low bonding accuracy, waste, etc., and reduces costs.

[0004] In order to solve at least one of the above technical problems, the technical solution of the present application is as follows:

[0005] According to an embodiment of the present application, a method for coating an automobile interior injection molded part comprises the following steps:

[0006] The controller controls the unloading mechanism to drive the leather-covering material belt to be conveyed, and the leather-covering material belt is provided with leather-covering parts that are matched with the automobile interior injection molding parts in sequence along its length direction;

[0007] Then the leather-covered material strip passes along the first detector, and the first detector detects each leather-covered portion on the leather-covered material strip in turn to obtain each first detection information, and sends each first detection information to the controller respectively;

[0008] Then the controller obtains the moving distance of each skin-applying part based on each first detection information, and controls the unloading mechanism to sequentially convey each skin-applying part to the bonding position in the bonding mold based on the moving distance of each skin-applying part;

[0009] Then the controller controls the laminating mold to laminate the leather part located at the laminating position with the automobile interior injection molded part in the laminating mold to form a mold;

[0010] The laminating material strip is discharged from the discharge port of the laminating mold and then the waste is collected.

[0011] In a possible implementation of the above embodiment, the first detector detects each of the leather-sticking parts on the leather-sticking material tape in sequence to obtain each of the first detection information, including: the first detector detects the two end points of each of the leather-sticking parts on the leather-sticking material tape along the conveying direction of the leather-sticking material tape respectively to obtain each of the first detection information.

[0012] In a possible implementation of the above embodiment, the controller obtains the moving distance of each skin-attaching portion based on each first detection information, including: the controller obtains the moving distance of each skin-attaching portion from the position detected by the first detector to the fitting position based on each first detection information and the position information of the fitting position stored in the controller.

[0013] In a possible implementation manner of the above embodiment, the first detector is a position sensor.

[0014] In a possible implementation of the above embodiment, a second detector is provided at the bonding position, and the controller controls the bonding mold to bond the leather part located at the bonding position with the automobile interior injection molded part in the bonding mold, including: the second detector first performs position detection on the leather part located at the bonding position to obtain second detection information, and sends the second detection information to the controller, and then the controller determines whether the position of the leather part is correct based on the second detection information; if the position of the leather part is correct, the controller controls the bonding mold to bond the leather part with the correct position with the automobile interior injection molded part; if the position of the leather part is incorrect, the controller controls the discharge mechanism to drive the leather material strip to move so that the position of the leather part is correct, and then the controller controls the bonding mold to bond the leather part with the correct position with the automobile interior injection molded part.

[0015] In a possible implementation of the above embodiment, the bonding mold further comprises: the bonding mold first presses the leather veneer strip, and then bonds the leather veneer portion located at the bonding position with the corresponding automobile interior injection-molded part in the bonding mold.

[0016] In a possible implementation of the above embodiment, the first detector is located at a feed port of the bonding mold.

[0017] In a possible implementation manner of the above embodiment, a surface of each skin-attaching portion is coated with an adhesive layer.

[0018] In a possible implementation of the above embodiment, an encoder is provided on the unloading mechanism, and the encoder is electrically connected to the controller. The controller controls the unloading machine to drive the leather-bonding material belt for conveying through the encoder.

[0019] In a possible implementation of the above embodiment, a tensioning mechanism is further provided on the unloading mechanism, and the tensioning mechanism tensions the leather-covering material tape output by the unloading mechanism.

[0020] The above technical solution of the present application has at least one of the following beneficial effects:

[0021] According to the automotive interior injection molding part skinning method of the present application, the controller controls the feeding mechanism to drive the skinning material belt for conveying, the first detector detects the position of each skinning part on the skinning material belt to obtain each first detection information, and sends each first detection information to the controller, the controller obtains the moving distance of each skinning part based on each first detection information, and then the controller controls the feeding mechanism to accurately convey each skinning part to the bonding position in the bonding mold based on the moving distance of each skinning part, and then the controller controls the bonding mold to bond the skinning part located at the bonding position to the automotive interior injection molding part in the bonding mold, and the skinning material belt output from the discharge port of the bonding mold is collected as waste. In this way, it is ensured that the skinning part on the skinning material belt is accurately conveyed to the bonding position in the bonding mold, and it is avoided that the position error of the skinning part on the skinning material belt in the bonding mold leads to low bonding accuracy and waste, etc., which reduces the cost and can meet the increasingly high production needs.

[0022] In addition, in the technical solution of the present application, unless otherwise specified, the technical solution can be implemented by adopting conventional means in the art. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 This is a flow chart of a method for skinning an automotive interior injection molded part according to an embodiment of the present application;

[0025] Figure 2 A flowchart of bonding and molding in a method for bonding a car interior injection molded part according to an embodiment of the present application;

[0026] Figure 3 The present invention is a flow chart of a method for skinning automotive interior injection molded parts according to an embodiment of the present application. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are part of the embodiments of the present application, rather than all of the embodiments, and are only used to explain the present application, and are not used to limit the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0028] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "inside", "outside", "two ends", "both sides", "bottom", "top" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred elements must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limitations on the present application. In addition, the terms "first", "second", "superior", "inferior", "primary", "secondary" and the like are only used for descriptive purposes and can be simply used to more clearly distinguish different components, but cannot be understood as indicating or implying relative importance.

[0029] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0030] See also Figure 1 As shown, a method for coating an automobile interior injection molded part according to an embodiment of the present application is schematically shown, comprising the following steps:

[0031] S1, controlling the unloading mechanism through a controller to drive the leather-covering material belt to be conveyed, and the leather-covering material belt is provided with leather-covering parts that are bonded to the automobile interior injection molded parts in sequence along its length direction;

[0032] S2, the leather-covered material strip then passes through the first detector, the first detector detects each leather-covered portion on the leather-covered material strip in turn to obtain each first detection information, and sends each first detection information to the controller respectively;

[0033] S3, then the controller obtains the moving distance of each skin-applying part based on each first detection information, and the controller controls the unloading mechanism to sequentially convey each skin-applying part to a bonding position in the bonding mold based on the moving distance of each skin-applying part;

[0034] S4, then the controller controls the laminating mold to laminate the leather part located at the laminating position with the automobile interior injection molded part in the laminating mold;

[0035] S5. The laminating material strip is discharged from the discharge port of the laminating mold and then the waste is collected.

[0036] It should be noted that the shape and size of the leather-covered portion on the leather-covered material strip are consistent with the shape and size of the bonding surface of the automobile interior injection-molded part to be bonded. The bonding mold usually uses vacuum adsorption to bond and mold the leather-covered portion on the automobile interior injection-molded part, and separates the leather-covered portion from the leather-covered material strip; the leather-covered material strip output from the discharge port of the bonding mold can be directly transferred to a waste bin for collection, or it can be rolled up by a waste collection mechanism.

[0037] That is to say, the unloading mechanism and the laminating mold are both controlled by the controller, the unloading mechanism unloads and conveys the skinning material strip, and then the skinning material strip passes through the first detector and the laminating mold in sequence. When the skinning part on the skinning material strip passes through the first detector, the first detector detects the position of each skinning part on the skinning material strip to obtain each first detection information, and sends each first detection information to the controller, and then the controller obtains the moving distance of each skinning part based on each first detection information, and the controller controls the unloading mechanism to convey each skinning part to the laminating position in the laminating mold in sequence based on the moving distance of each skinning part, and then the controller controls the laminating mold to laminarize the skinning part located at the laminating position onto the automobile interior injection molded part in the laminating mold, and the skinning material strip output from the discharge port of the laminating mold is collected as waste.

[0038] Therefore, the automotive interior injection molding skinning method of the present application can ensure that the skinning portion on the skinning material strip is accurately transported to the bonding position in the bonding mold, avoiding the incorrect position of the skinning portion on the skinning material strip in the bonding mold, resulting in low bonding accuracy and waste, etc., thereby reducing costs and meeting increasingly higher production needs.

[0039] In some embodiments, the skin-covering tape can be formed by compounding a thermoplastic polyolefin (TPO) material layer with a polyformaldehyde (POM) material layer or a polyvinylchloride (PVC) material layer with a polyformaldehyde (POM) material layer, and the automotive interior injection-molded parts can be injection-molded from materials such as acrylonitrile butadiene styrene (ABS), polypropylene (PP) or polycarbonate (PC). It can be understood by those skilled in the art that the skin-covering tape and the automotive interior injection-molded parts can also be made of other suitable materials in the prior art.

[0040] In some embodiments, in the above step S2, the first detector sequentially detects each of the leather-sticking parts on the leather-sticking material tape to obtain each of the first detection information, including: the first detector detects the two end points of each of the leather-sticking parts on the leather-sticking material tape along the conveying direction of the leather-sticking material tape to obtain each of the first detection information.

[0041] That is to say, the first detector detects the two end points of each skin-sticking part on each skin-sticking material tape along the conveying direction of the skin-sticking material tape to obtain each first detection information, thereby ensuring that the first detection information is more accurate, and then better conveying the skin-sticking part to the bonding position in the bonding mold, avoiding the skin-sticking part of the skin-sticking material tape from being positioned incorrectly in the bonding mold, resulting in low bonding accuracy and waste.

[0042] In some embodiments, in the above step S3, the controller obtains the moving distance of each skin-attaching portion based on each first detection information, including: the controller obtains the moving distance of each skin-attaching portion from the position detected by the first detector to the fitting position based on each first detection information and the position information of the fitting position stored in the controller.

[0043] That is to say, the controller stores position information of the bonding position in the bonding mold. Based on the position information of the bonding position in the bonding mold and the first detection information it receives, the controller obtains the moving distance of each skin-bonding portion from the position detected by the first detector to the bonding position, thereby ensuring that the controller controls the discharge mechanism to accurately transport each skin-bonding portion to the bonding position in the bonding mold in sequence.

[0044] In some embodiments, the first detector is a position sensor, thereby being able to better detect the leather-covered portion on the leather-covered material strip, ensuring that the first detection information is more accurate.

[0045] In some embodiments, a second detector is provided at the bonding position in the bonding mold, such as Figure 2 As shown, in the above step S4, the bonding mold bonds the leather part with the corresponding automobile interior injection molded part in the bonding mold, including: the second detector first performs position detection on the leather part located at the bonding position to obtain second detection information, and sends the second detection information to the controller, and then the controller determines whether the position of the leather part is correct based on the second detection information; if the position of the leather part is correct, the controller controls the bonding mold to bond the leather part with the correct position to the automobile interior injection molded part; if the position of the leather part is incorrect, the controller controls the discharge mechanism to drive the leather tape to move so that the position of the leather part is correct, and then the controller controls the bonding mold to bond the leather part with the correct position to the automobile interior injection molded part.

[0046] That is to say, after the skin-painting part is conveyed to the bonding position in the bonding mold, the second detector located at the bonding position first detects the position of the skin-painting part to obtain the second detection information, and sends the second detection information to the controller. Then the controller determines whether the position of the skin-painting part is correct based on the second detection information. If the position of the skin-painting part is correct, the controller controls the bonding mold to bond the correctly positioned skin-painting part with the automobile interior injection molding. If the position of the skin-painting part is incorrect, the controller controls the discharge mechanism to drive the skin-painting strip to move so that the position of the skin-painting part is correct. Then the controller controls the bonding mold to bond the correctly positioned skin-painting part with the automobile interior injection molding. For example, the controller can obtain the distance between the skin-painting part and the correct position based on the second detection information. If the distance is zero, the position of the skin-painting part is correct. If the distance is not zero, the position of the skin-painting part is incorrect. The controller controls the discharge mechanism to drive the skin-painting strip to move based on the distance so that the position of the skin-painting part is correct. In this way, it is better to ensure that the skin-painting part is in the correct bonding position, and avoid the incorrect position of the skin-painting part of the skin-painting strip in the bonding mold, which leads to low bonding accuracy and the generation of waste products.

[0047] In some embodiments, in the above step S4, the bonding mold bonding the leather veneer portion located at the bonding position with the corresponding automobile interior injection molded part in the bonding mold also includes: the bonding mold first presses the leather veneer strip, and then bonds the leather veneer portion located at the bonding position with the corresponding automobile interior injection molded part in the bonding mold.

[0048] That is to say, when the position of the veneer part in the laminating mold is correct, the controller controls the laminating mold to first press the veneer material strip, and then laminates the veneer part in the correct position with the corresponding automobile interior injection molded part in the laminating mold, thereby ensuring that the veneer part and the automobile interior injection molded part are better laminarly formed.

[0049] In some embodiments, the first detector is located at the feed port of the laminating mold, thereby making installation, adjustment and other operations more convenient.

[0050] In some embodiments, the surface of each veneer portion is coated with an adhesive layer. The adhesive layer can be formed into a pattern by optional scraping, and the shape and size of the adhesive layer are consistent with the shape and size of the bonding surface of the automotive interior injection molded part to be bonded. In this way, not only is it ensured that the veneer portion and the automotive interior injection molded part are bonded more firmly, but the first detector can also obtain the first detection information by detecting and identifying the adhesive layer on the surface of the veneer portion.

[0051] In some embodiments, an encoder is provided on the unloading mechanism, the encoder is electrically connected to the controller, and the controller controls the unloading machine to drive the tape for conveying through the encoder. Thus, the controller controls the unloading mechanism to work through the encoder, with higher precision.

[0052] In some embodiments, the unloading mechanism is further provided with a tensioning mechanism, which tensions the leather-applied material strip output by the unloading mechanism. Thus, the leather-applied material strip is tensioned by the tensioning mechanism, ensuring better conveyance of the leather-applied material strip, which is safer and more reliable.

[0053] In some embodiments, Figure 3 As shown, the automotive interior injection molding skinning method of the present application may specifically include the following steps:

[0054] S1a, the controller controls the unloading mechanism through the encoder to drive the leather-sticking material belt to be conveyed, and the tensioning mechanism tensions the leather-sticking material belt output by the unloading mechanism, and the leather-sticking parts that are bonded to the automobile interior injection molding parts are sequentially arranged on the leather-sticking material belt along its length direction, and the surface of each leather-sticking part is coated with a glue layer;

[0055] S2a, the tape then passes through the first detector, the first detector detects two end points of each tape portion on the tape along the conveying direction of the tape to obtain first detection information, and sends the first detection information to the controller;

[0056] S3a, then the controller obtains the moving distance of each skin-applying part from the position detected by the first detector to the bonding position based on each first detection information and the position information of the bonding position in the bonding mold stored in the controller, and the controller controls the unloading mechanism to sequentially convey each skin-applying part to the bonding position in the bonding mold based on the moving distance of each skin-applying part;

[0057] S4a, then the second detector first performs position detection on the skin-sticking part located at the bonding position to obtain second detection information, and sends the second detection information to the controller, and then the controller determines whether the position of the skin-sticking part is correct based on the second detection information. If the position of the skin-sticking part is correct, the controller controls the bonding mold to first press the skin-sticking material strip, and then bond the skin-sticking part with the correct position to the corresponding automobile interior injection molding part in the bonding mold for molding; if the position of the skin-sticking part is incorrect, the controller controls the material discharge mechanism to drive the skin-sticking material strip to move, so that the position of the skin-sticking part is correct, and then the controller controls the bonding mold to first press the skin-sticking material strip, and then bond the skin-sticking part with the correct position to the corresponding automobile interior injection molding part in the bonding mold for molding;

[0058] S5a, the laminating material strip is discharged from the discharge port of the laminating mold and then the waste is collected.

[0059] Based on the above-mentioned embodiments of the present application, in the absence of explicit negation or conflict, the technical features of one embodiment may be beneficially combined with one or more other embodiments.

[0060] The above are only some embodiments of the present application, which are only used to illustrate the technical solution of the present application, rather than to limit it. It should be understood that, for those skilled in the art, without departing from the creative concept of the present application, it is possible to improve or replace it according to the above description, and all these improvements and replacements should belong to the protection scope of the claims attached to the present application. In this case, all details can be replaced by equivalent elements, and the materials, shapes and sizes can also be arbitrary.

Claims

1. A method for coating automotive interior injection molded parts. It is characterized in that The steps include: The controller controls the unloading mechanism to drive the leather-covering material belt to be conveyed, and the leather-covering material belt is provided with leather-covering parts that are fitted with the automobile interior injection-molded parts in sequence along its length direction; Then the skin-sticking material strip passes along the first detector, and the first detector detects each of the skin-sticking parts on the skin-sticking material strip in turn to obtain each first detection information, and sends each of the first detection information to the controller respectively; Then, the controller obtains the moving distance of each of the skin-applying parts based on each of the first detection information, and the controller controls the unloading mechanism to sequentially convey each of the skin-applying parts to a bonding position in the bonding mold based on the moving distance of each of the skin-applying parts; Then, the controller controls the laminating mold to laminarly mold the skin-covering portion located at the laminating position and the automobile interior injection molded part in the laminating mold; The pasting material strip is discharged from the discharge port of the pasting mold and then waste is collected.

2. The method for coating automotive interior injection molded parts according to claim 1, It is characterized in that The first detector detects each of the skin-sticking parts on the skin-sticking material strip in sequence to obtain each of the first detection information including: The first detector detects two end points of each of the skin-sticking parts on the skin-sticking material tape along the conveying direction of the skin-sticking material tape to obtain each of the first detection information.

3. The method for coating automotive interior injection molded parts according to claim 2, It is characterized in that The controller obtains the moving distance of each skin-applying part based on each of the first detection information, including: The controller obtains a moving distance of each of the skin-applying portions from a position detected by the first detector to the attachment position based on each of the first detection information and the position information of the attachment position stored in the controller.

4. The method for coating automotive interior injection molded parts according to claim 3, It is characterized in that The first detector is a position sensor.

5. The method for coating automotive interior injection molded parts according to claim 1, It is characterized in that The bonding position is provided with a second detector, and the controller controls the bonding mold to bond the leather-sticking portion located at the bonding position with the automobile interior injection-molded part in the bonding mold, including: the second detector first performs position detection on the leather-sticking portion located at the bonding position to obtain second detection information, and sends the second detection information to the controller, and then the controller determines whether the position of the leather-sticking portion is correct based on the second detection information; if the position of the leather-sticking portion is correct, the controller controls the bonding mold to bond the leather-sticking portion with the correct position with the automobile interior injection-molded part; if the position of the leather-sticking portion is incorrect, the controller controls the material discharge mechanism to drive the leather-sticking material strip to move so that the position of the leather-sticking portion is correct, and then the controller controls the bonding mold to bond the leather-sticking portion with the correct position with the automobile interior injection-molded part.

6. The method for coating automotive interior injection molded parts according to claim 5, It is characterized in that The laminating mold laminating the skin-covering part located at the laminating position with the corresponding automobile interior injection molded part in the laminating mold to form the laminating mold further includes: The laminating mold first compresses the skin-covering material strip, and then laminates the skin-covering portion located at the laminating position with the corresponding automobile interior molding in the laminating mold.

7. The method for coating automotive interior injection molded parts according to claim 1, It is characterized in that The first detector is located at the feed inlet of the bonding mold.

8. The method for coating automotive interior injection molded parts according to claim 1, It is characterized in that The surface of each skin-sticking part is coated with an adhesive layer.

9. The method for coating automotive interior injection molded parts according to claim 1, It is characterized in that The unloading mechanism is provided with an encoder, and the encoder is electrically connected to the controller. The controller controls the unloading machine through the encoder to drive the pasting material belt to be transported.

10. The method for coating automotive interior injection molded parts according to claim 1, It is characterized in that The unloading mechanism is also provided with a tensioning mechanism, and the tensioning mechanism tensions the leather-covering material strip output by the unloading mechanism.

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