Method for attaching a skin to an automotive interior injection molded part

Abstract

The application discloses a skin pasting method for an automotive interior injection molding part, comprising the following steps: a feeding mechanism is controlled by a controller to drive a skin pasting belt to convey; then the skin pasting belt passes through a first detector, the first detector detects each skin pasting part on the skin pasting belt in sequence to obtain each first detection information, and sends each first detection information to the controller; then the controller obtains the moving distance of each skin pasting part based on each first detection information, and controls the feeding mechanism to convey each skin pasting part to a pasting position in a pasting mold in sequence based on the moving distance of each skin pasting part; then the controller controls the pasting mold to past and form the skin pasting part and the automotive interior injection molding part; and after the skin pasting belt is output from a discharge port of the pasting mold, waste is collected. The skin pasting method for the automotive interior injection molding part can ensure that the skin pasting part on the skin pasting belt is accurately conveyed to the pasting position, and can avoid low pasting precision and waste product generation.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of automobile interiors, in particular to a skin pasting method for automobile interior injection molding parts. BACKGROUND

[0002] The automobile interior is an important part of the automobile body, and the automobile interior injection molding part is a common automobile interior part. At present, in order to improve the comfort, safety and the like of the automobile interior injection molding part, the skin pasting is performed on the surface of the automobile interior injection molding part, and the skin pasting strip is sequentially provided with skin pasting portions along the length direction of the skin pasting strip. The skin pasting portions on the skin pasting strip are sequentially conveyed to the pasting positions in the pasting mold, and then the pasting mold pastes and forms the skin pasting portions and the corresponding automobile interior injection molding parts. However, the skin pasting method of the existing automobile interior injection molding part controls the skin pasting strip to convey a fixed distance each time, which is easy to cause the position error of the skin pasting portions on the skin pasting strip in the pasting mold, resulting in low pasting precision, waste products and the like, increasing the cost, and being unable to meet the increasingly high production demand. SUMMARY

[0003] The purpose of the application is to provide a skin pasting method for automobile interior injection molding parts, which can ensure that the skin pasting portions on the skin pasting strip are accurately conveyed to the pasting positions in the pasting mold, avoid the position error of the skin pasting portions on the skin pasting strip in the pasting mold, resulting in low pasting precision, waste products and the like, and reduce the cost.

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

[0005] According to the skin pasting method for automobile interior injection molding parts provided by the embodiment of the application, the following steps are included:

[0006] The feeding mechanism is controlled by the controller to drive the skin pasting strip to convey, and the skin pasting strip is sequentially provided with skin pasting portions which are pasted with the automobile interior injection molding parts along the length direction of the skin pasting strip;

[0007] Then the skin pasting strip passes through the first detector, the first detector detects each skin pasting portion on the skin pasting strip to obtain each first detection information, and sends each first detection information to the controller;

[0008] Then the controller obtains the moving distance of each skin pasting portion based on each first detection information, and controls the feeding mechanism to convey each skin pasting portion to the pasting position in the pasting mold based on the moving distance of each skin pasting portion;

[0009] Then the controller controls the pasting mold to paste and form the skin pasting portion located at the pasting position and the automobile interior injection molding part in the pasting mold;

[0010] The skin pasting strip is output from the discharge port of the pasting mold and then waste is collected.

[0011] In a possible implementation of the above embodiment, the first detector sequentially detects each skin part on the skin material belt to obtain the first detection information of each skin part, and the first detector detects two end points of each skin part on the skin material belt in the conveying direction of the skin material belt to obtain the first detection information of each skin part.

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

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

[0014] In a possible implementation of the above embodiment, the fitting position is provided with a second detector, and the controller controls the skin part at the fitting position to be formed into the automobile interior part by the fitting mold, and the second detector detects the position of the skin part at the fitting 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 part is correct based on the second detection information, if the position of the skin part is correct, the controller controls the fitting mold to form the skin part at the correct position into the automobile interior part, if the position of the skin part is incorrect, the controller controls the feeding mechanism to drive the skin material belt to move so that the position of the skin part is correct, and then the controller controls the fitting mold to form the skin part at the correct position into the automobile interior part.

[0015] In a possible implementation of the above embodiment, the fitting mold forms the skin part at the fitting position into the corresponding automobile interior part in the fitting mold, and the fitting mold first compresses the skin material belt, and then forms the skin part at the fitting position into the corresponding automobile interior part in the fitting mold.

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

[0017] In a possible implementation of the above embodiment, the surface of each skin part is coated with a glue layer.

[0018] In a possible implementation of the above embodiment, an encoder is arranged on the feeding mechanism, the encoder is electrically connected to the controller, and the controller controls the feeding mechanism to drive the skin material belt to convey through the encoder.

[0019] In a possible implementation of the above embodiment, the feeding mechanism is further provided with a tensioning mechanism, which tensions the skin material belt output by the feeding mechanism.

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

[0021] According to the skin material pasting method for the automobile interior injection molding part, the feeding mechanism is controlled by the controller to drive the skin material belt to be conveyed, the first detector detects the positions of the skin material parts on the skin material belt to obtain the first detection information, and the first detection information is sent to the controller. The controller obtains the moving distance of each skin material part based on the first detection information, and then controls the feeding mechanism to accurately convey each skin material part to the pasting position in the pasting mold in sequence based on the moving distance of each skin material part. Then, the controller controls the pasting mold to paste the skin material part at the pasting position to form the automobile interior injection molding part in the pasting mold, and the skin material belt output from the discharge port of the pasting mold is collected as waste. Thus, the skin material parts on the skin material belt are accurately conveyed to the pasting position in the pasting mold, avoiding the position error of the skin material parts on the skin material belt in the pasting mold, which leads to low pasting accuracy and waste products, thereby reducing the cost and meeting the increasing production demand.

[0022] In addition, in the technical solutions of the present application, any unexplained part can be realized by using conventional means in the art. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0024] Figure 1 The flow chart of the skin material pasting method for the automobile interior injection molding part of an embodiment of the present application;

[0025] Figure 2 The flow chart of the pasting and forming in the skin material pasting method for the automobile interior injection molding part of an embodiment of the present application;

[0026] Figure 3 The flow chart of the skin material pasting method for the automobile interior injection molding part of an embodiment of the present application. DETAILED DESCRIPTION

[0027] In order to make the purposes, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the 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 the embodiments of the present application, and are only used to explain the present application, and do not limit the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall 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", "rear", "vertical", "horizontal", "inner", "outer", "two ends", "two sides", "bottom", "top" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the elements referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "superior", "inferior", "primary", "secondary" and the like are only for descriptive purposes and can simply be used to more clearly distinguish different components, and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0030] Referring to Figure 1 As shown, a method for attaching a skin to an automotive interior injection molding part is shown schematically, which comprises the following steps:

[0031] S1, the controller controls the discharging mechanism to drive the skin belt to convey, and the skin belt is provided with a skin part for attaching to the automotive interior injection molding part along the length direction of the skin belt;

[0032] S2, then the skin belt passes through the first detector, the first detector detects each skin part on the skin belt 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 part based on the respective first detection information, and controls the feeding mechanism to sequentially feed each skin part to the skinning position in the skinning mold based on the moving distance of each skin part;

[0034] S4, then the controller controls the skinning mold to skin and form the skin part at the skinning position with the automotive interior injection molding part in the skinning mold;

[0035] S5, the skinning tape is output from the discharge port of the skinning mold and then waste collection is performed.

[0036] It should be noted that the shape and size of the skin part on the skinning tape are consistent with the shape and size of the skinning surface of the automotive interior injection molding part to be skinned, the skinning mold usually uses a vacuum suction method to skin and form the skin part on the automotive interior injection molding part, and separates the skin part from the skinning tape; the skinning tape output from the discharge port of the skinning mold can be directly transmitted to the waste box for collection, or can be wound by the material collecting mechanism.

[0037] That is, the feeding mechanism and the skinning mold are controlled by the controller, the skinning tape is fed and transported by the feeding mechanism, and then the skinning tape sequentially passes through the first detector and the skinning mold. When the skin part on the skinning tape passes through the first detector, the first detector detects the position of each skin part on the skinning tape to obtain each first detection information, and each first detection information is sent to the controller, and then the controller obtains the moving distance of each skin part based on each first detection information, and controls the feeding mechanism to sequentially feed each skin part to the skinning position in the skinning mold based on the moving distance of each skin part. Then the controller controls the skinning mold to skin and form the skin part at the skinning position on the automotive interior injection molding part in the skinning mold, and the skinning tape output from the discharge port of the skinning mold is collected as waste.

[0038] Therefore, the skinning method of the automotive interior injection molding part can ensure that the skin part on the skinning tape is accurately transported to the skinning position in the skinning mold, avoid the position error of the skin part on the skinning tape in the skinning mold, and reduce the cost, which can meet the increasing production demand.

[0039] In some embodiments, the skin material belt can be composed of a layer of thermoplastic polyolefin (TPO) material and a layer of polyformaldehyde (POM) material, or composed of a layer of polyvinyl chloride (PVC) material and a layer of polyformaldehyde (POM) material, and the automotive interior injection molding part can be made of acrylonitrile butadiene styrene (ABS), polypropylene (PP), or polycarbonate (PC) material. Those skilled in the art can understand that the skin material belt and the automotive interior injection molding part can also be made of other suitable materials in the prior art.

[0040] In some embodiments, in the step S2, the first detector detects each skin part on the skin material belt to obtain each first detection information, including: the first detector detects two end points of each skin part on the skin material belt in the conveying direction of the skin material belt to obtain each first detection information.

[0041] That is, the first detector detects two end points of each skin part on each skin material belt in the conveying direction of the skin material belt to obtain each first detection information, so as to ensure that the first detection information is more accurate, and thus the skin part is better conveyed to the bonding position in the bonding mold, avoiding the position error of the skin part in the bonding mold, resulting in low bonding accuracy, waste, etc.

[0042] In some embodiments, in the step S3, the controller obtains the moving distance of each skin part based on each first detection information, including: the controller obtains the moving distance of each skin 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 stored in the controller.

[0043] That is, the controller stores the position information of the bonding position in the bonding mold, and the controller obtains the moving distance of each skin part from the position detected by the first detector to the bonding position based on the position information of the bonding position in the bonding mold and each first detection information received by the controller, so as to ensure that the controller controls the feeding mechanism to accurately convey each skin part to the bonding position in the bonding mold.

[0044] In some embodiments, the first detector is a position sensor. Thus, the skin part on the skin material belt can be better detected, and the first detection information can be more accurate.

[0045] In some embodiments, the second detector is arranged at the fitting position in the fitting mold, as shown in Figure 2 In step S4, the fitting mold is used to fit and form the skin part and the corresponding automotive interior injection molded part in the fitting mold, including: the second detector first detects the position of the skin part at the fitting position to obtain second detection information, and sends the second detection information to the controller; then the controller determines whether the position of the skin part is correct based on the second detection information. If the position of the skin part is correct, the controller controls the fitting mold to fit and form the skin part with the correct position and the automotive interior injection molded part. If the position of the skin part is incorrect, the controller controls the material feeding mechanism to drive the skin material belt to move so that the position of the skin part is correct, and then the controller controls the fitting mold to fit and form the skin part with the correct position and the automotive interior injection molded part.

[0046] That is, when the skin part is transported to the fitting position in the fitting mold, the second detector at the fitting position first detects the position of the skin part to obtain second detection information, and sends the second detection information to the controller; then the controller determines whether the position of the skin part is correct based on the second detection information. If the position of the skin part is correct, the controller controls the fitting mold to fit and form the skin part with the correct position and the automotive interior injection molded part. If the position of the skin part is incorrect, the controller controls the material feeding mechanism to drive the skin material belt to move so that the position of the skin part is correct, and then the controller controls the fitting mold to fit and form the skin part with the correct position and the automotive interior injection molded part. For example, the controller can obtain the distance between the skin part and the correct position based on the second detection information. If the distance is zero, the position of the skin part is correct. If the distance is not zero, the position of the skin part is incorrect. The controller controls the material feeding mechanism to drive the skin material belt to move so that the position of the skin part is correct. In this way, the skin part is better guaranteed to be located at the correct fitting position, avoiding the low fitting precision and waste caused by the incorrect position of the skin part in the fitting mold.

[0047] In some embodiments, in step S4, the fitting mold is used to fit and form the skin part at the fitting position and the corresponding automotive interior injection molded part in the fitting mold, further including: the fitting mold first compresses the skin material belt, and then fits and forms the skin part at the fitting position and the corresponding automotive interior injection molded part in the fitting mold.

[0048] That is, after the position of the skin part in the fitting mold is correct, the controller controls the fitting mold to first compress the skin material belt, and then fit and form the skin part with the correct position and the corresponding automotive interior injection molded part in the fitting mold. In this way, the skin part and the automotive interior injection molded part are better guaranteed to be fit and formed.

[0049] In some embodiments, the first detector is arranged at the feeding port of the fitting mold. In this way, the installation, adjustment and other operations are more convenient.

[0050] In some embodiments, the surface of each skin part is coated with a glue layer. The glue layer can be formed in a pattern by optional coating and scraping, and the shape and size of the glue layer are consistent with the shape and size of the surface of the automobile interior injection molded part to be attached. In this way, not only is the attachment of the skin part to the automobile interior injection molded part more secure, but the first detector can also obtain first detection information by detecting and identifying the glue layer on the surface of the skin part.

[0051] In some embodiments, an encoder is arranged on the feeding mechanism, and the encoder is electrically connected to the controller. The controller controls the feeding mechanism to drive the skin belt to be conveyed through the encoder. In this way, the controller controls the operation of the feeding mechanism through the encoder, which is more accurate.

[0052] In some embodiments, a tensioning mechanism is further arranged on the feeding mechanism, and the tensioning mechanism tensions the skin belt output by the feeding mechanism. In this way, the skin belt is tensioned by the tensioning mechanism to ensure better conveying of the skin belt, which is safer and more reliable.

[0053] In some embodiments, as shown in Figure 3 The automobile interior injection molded part skinning method of the present application can specifically include the following steps:

[0054] S1a, the controller controls the feeding mechanism to drive the skin belt to be conveyed through the encoder, the tensioning mechanism tensions the skin belt output by the feeding mechanism, and the skin belt is arranged with skin parts to be attached to the automobile interior injection molded part along the length direction of the skin belt in sequence, and the surface of each skin part is coated with a glue layer;

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

[0056] S3a, then the controller obtains the movement distance of each skin part from the position detected by the first detector to the attachment position based on each first detection information and the position information of the attachment position in the attachment mold stored in the controller, and controls the feeding mechanism to convey each skin part to the attachment position in the attachment mold in sequence based on the movement distance of each skin part;

[0057] S4a. Then the second detector first detects the position of the skin part located in the fitting position to obtain second detection information, and sends the second detection information to the controller. Then the controller determines whether the position of the skin part is correct based on the second detection information. If the position of the skin part is correct, the controller controls the fitting mold to first press the skin material belt tightly, and then the skin part with correct position is fitted and formed with the corresponding automotive interior injection molded part in the fitting mold. If the position of the skin part is incorrect, the controller controls the material feeding mechanism to drive the skin material belt to move so that the position of the skin part is correct. Then the controller controls the fitting mold to first press the skin material belt tightly, and then the skin part with correct position is fitted and formed with the corresponding automotive interior injection molded part in the fitting mold.

[0058] S5a. The skin material belt is collected after being output from the discharge port of the fitting mold.

[0059] Based on the above embodiments of the present application, one technical feature of one embodiment can be beneficially combined with one or more other embodiments without explicit negation or conflict.

[0060] The above only describes some embodiments of the present application, which are used to illustrate the technical solutions of the present application, but not to limit the present application. It should be understood that for those skilled in the art, without departing from the concept of the present application, the above description can be improved or replaced, and all these improvements and replacements should be within the protection scope of the appended claims of the present application. In this case, all details can be replaced by equivalent elements, and the materials, shapes and sizes can be arbitrary.

Claims

1. A method for applying leather to injection-molded automotive interior parts, characterized in that, Includes the following steps: The controller controls the feeding mechanism to drive the leather strip to be conveyed. The leather strip is provided with leather parts that are attached to the injection molded parts of the automotive interior along its length. Then the bonding strip passes through the first detector, and the first detector sequentially detects each bonding part on the bonding strip to obtain each first detection information, and sends each first detection information to the controller respectively; Then, the controller obtains the moving distance of each of the first detection information, and controls the feeding mechanism to sequentially transport each of the adhesive parts to the bonding position in the bonding mold based on the moving distance of each of the adhesive parts. Then the controller controls the bonding mold to bond the skin portion located at the bonding position to the automotive interior injection molded part in the bonding mold; The adhesive strip is discharged from the outlet of the bonding mold and then collected as waste. The controller obtains the movement distance of each of the skin grafts based on the first detection information, including: The controller obtains the moving distance of each of the first detection information and the position information of the bonding position stored in the controller from the position detected by the first detector to the bonding position. The first detector is a position sensor. A second detector is provided at the bonding position. The controller controls the bonding mold to bond the skin portion located at the bonding position to the automotive interior injection molded part in the bonding mold, including: the second detector first performs position detection on the skin portion located at the bonding position to obtain second detection information, and sends the second detection information to the controller. Then, the controller determines whether the position of the skin portion is correct based on the second detection information. If the position of the skin portion is correct, the controller controls the bonding mold to bond the correctly positioned skin portion to the automotive interior injection molded part. If the position of the skin portion is incorrect, the controller controls the feeding mechanism to drive the skin material strip to move so that the position of the skin portion is correct. Then, the controller controls the bonding mold to bond the correctly positioned skin portion to the automotive interior injection molded part.

2. The method for applying leather to injection-molded automotive interior parts according to claim 1, characterized in that, The first detector sequentially detects each of the patch portions on the patch material strip to obtain first detection information, including: The first detector detects the two ends of each of the patching parts on the patching material strip along the conveying direction of the patching material strip to obtain the first detection information.

3. The method for applying leather to injection-molded automotive interior parts according to claim 1, characterized in that, The bonding mold further includes bonding the skin portion located at the bonding position to the corresponding automotive interior injection molded part in the bonding mold. The bonding mold first presses the leather strip tightly, and then bonds the leather part located at the bonding position to the corresponding automotive interior injection molded part in the bonding mold to form a shape.

4. The method for applying leather to injection-molded automotive interior parts according to claim 1, characterized in that, The first detector is located at the feed port of the bonding mold.

5. The method for applying leather to injection-molded automotive interior parts according to claim 1, characterized in that, Each of the said adhesive patches has an adhesive layer applied to its surface.

6. The method for applying leather to injection-molded automotive interior parts according to claim 1, characterized in that, An encoder is installed on the feeding mechanism. The encoder is electrically connected to the controller. The controller controls the feeding machine to drive the coating material belt for conveying through the encoder.

7. The method for applying leather to injection-molded automotive interior parts according to claim 1, characterized in that, The feeding mechanism is also equipped with a tensioning mechanism, which tensions the skin strip output by the feeding mechanism.

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