Automobile decorating part through hole edge covering tool

Abstract

The embodiment of the utility model relates to the technical field of automobile part machining equipment, and discloses an automobile decorating part through hole edge covering tool. The automobile decorating part through hole edge covering tool comprises a covering device, and the covering device comprises a covering base used for positioning a decorating part; the wrapping base is provided with at least one working hole, and the working holes correspond to structural holes in a supporting frame of the decorating part in position and are matched with the structural holes in shape. The air bag assembly comprises an air bag and an air pipe, and the air bag is connected with the air pipe. Wherein the air bag is inflated through an air pipe, the air bag penetrates through the working hole, the air bag abuts against a wrapping part on the inner side of the corresponding structural hole in the decorative layer of the decorative part, and the hole wall and the periphery of the structural hole are wrapped by the wrapping part. According to the through hole edge covering tool for the automobile decorating part, the appearance and texture of the automobile decorating part can be improved, hot pressing can be conducted while the decorating part is covered, and the production efficiency of the decorating part is improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of automobile parts processing equipment, and in particular to a through-hole edging tool for automobile decorative parts. Background Art

[0002] Car door trims and other decorative parts are usually covered with covering materials such as genuine leather or artificial leather to enhance the car's sense of luxury and touch.

[0003] At present, the main process of decorative parts covering is to apply glue to the bonding surfaces of the covering material and the decorative part frame, then pressurize the covering material and the decorative part frame to fit them together, and then heat the bonded covering material and the decorative part frame to make the glue firmly bonded. Finally, the surface covering of the structural holes on the decorative parts is completed manually.

[0004] However, inconsistent pulling force during manual hemming results in uneven wrapping of the material around the edges of the structural holes, resulting in poor product consistency. Furthermore, the use of finger pressure can leave press marks along the edges of the decorative parts' structural holes, impacting the appearance and quality of the automotive trim. Utility Model Content

[0005] In light of this, embodiments of the present application provide a tool for hemming through-holes in automotive decorative parts. This hemming equipment can avoid the poor consistency caused by manual hemming of structural holes, improving the appearance and texture of automotive decorative parts. Furthermore, the hemming equipment can simultaneously perform hot pressing during hemming, thereby increasing the production efficiency of decorative parts.

[0006] In order to achieve the above-mentioned purpose, the technical solution of the embodiment of the present application is implemented as follows:

[0007] The present application provides a through-hole hemming tool for automobile decorative parts, including a hemming device, the hemming device including:

[0008] The covering base is used to position the decorative element; the covering base is provided with at least one working hole, each of which corresponds in position and shape to each of the structural holes on the supporting frame of the decorative element;

[0009] at least one airbag assembly, the airbag assembly comprising an airbag and a trachea, the airbag being connected to the trachea;

[0010] The airbag assembly is configured as follows: the airbag is inflated through the air tube, the airbag passes through the working hole, the airbag abuts against the covering portion on the inner side of the corresponding structural hole on the decorative layer of the decorative part, and the airbag compresses the covering portion to wrap the hole wall and periphery of the structural hole.

[0011] The tooling for wrapping the through-holes of automotive decorative parts provided in the embodiments of the present application includes a wrapping device, which includes a wrapping base and one or more airbag assemblies. The wrapping base is used to position the decorative part and is provided with at least one working hole, each of which corresponds in position and shape to a structural hole on the decorative part's support frame. Gas is delivered into the airbag through the air tube of the airbag assembly. After the airbag inflates, it abuts against the wrapping portion of the decorative layer, wrapping the wall and surrounding area of the structural hole. By using the wrapping device instead of manually wrapping the structural hole, the pressure within the airbag is uniform, and the pressure applied to different locations on the decorative layer is the same. After wrapping, the structural hole of the decorative part will not appear uneven, thereby improving the appearance and texture of the automotive decorative part. Furthermore, the gas pressure within the airbag is adjustable, which can improve the adhesion between the decorative layer and the structural hole, prevent the decorative layer from separating from the structural hole, and enhance the reliability of the decorative part.

[0012] In a possible implementation of the present application, the covering base includes a base upper mold and a base lower mold, the base upper mold and the base lower mold are aligned with each other up and down, and the working hole is set in the base upper mold.

[0013] The base upper mold and the base lower mold are used to position the decorative parts, which can prevent the decorative layer and the support frame from being misaligned and affecting the appearance of the decorative parts.

[0014] In a possible implementation of the present application, the base lower mold is provided with an accommodating cavity, and the portion of the airbag extending into the base lower mold is accommodated in the accommodating cavity;

[0015] The cross-sectional area of the accommodating cavity is larger than the cross-sectional area of the working hole.

[0016] Under the action of the gas in the airbag, the covering portion can wrap the hole wall of the structural hole and the peripheral position of the structural hole on the back side of the support frame.

[0017] In a possible implementation of the present application, the central axis of the accommodating cavity coincides with the center of the working hole.

[0018] Such an arrangement can prevent the airbag from contacting the cavity wall of the accommodating cavity unevenly, which would result in uneven adhesion between the covering portion and the peripheral position of the structural hole on the back side of the support frame.

[0019] In a possible implementation of the present application, at least one of the base upper mold and the base lower mold is provided with a heating module, and the heating module is used to provide heat for the decorative component so that the decorative layer is fitted and connected to the support frame.

[0020] The wrapping device is provided with a heating module in order to heat the decorative parts during wrapping, thereby reducing the need for reheating and improving the processing efficiency of the decorative parts.

[0021] In a possible implementation of the present application, both the upper mold and the lower mold of the base are provided with heating modules, thereby further improving the processing efficiency of the decorative piece.

[0022] In one possible implementation of the present application, the through-hole hemming tool for automotive decorative parts further includes a cutting device equipped with at least one cutting element. Each cutting element corresponds to the position and shape of each structural hole, and the cutting element cuts the decorative hole in the decorative layer. The cutting device, equipped with one or more cutting elements, can complete the cutting of multiple shapes, improving processing efficiency. Furthermore, the shape and size of the decorative holes can be consistent, ensuring consistency across multiple decorative parts.

[0023] In a possible implementation of the present application, the center of the decorative hole coincides with the center of the structural hole, and the cross-sectional area of the decorative hole is smaller than the cross-sectional area of the structural hole;

[0024] The distance between the edge of the decorative hole and the edge of the structural hole is greater than the thickness of the support frame.

[0025] This ensures that the covering portion around the cut decorative hole can wrap around the periphery of the structural hole on the back of the support frame.

[0026] In a possible implementation of the present application, at least one structural hole of the through-hole edging tooling for automobile decorative parts includes a rectangular hole, and the cutting piece includes a rectangular cutting piece;

[0027] The rectangular cutting piece includes a rectangular frame and an extension portion, wherein the extension portion is connected to each corner of the rectangular frame and extends outward from the corner of the rectangular frame.

[0028] This arrangement ensures that no wrinkles are generated at the four corners of the rectangular hole during wrapping, making the decorative piece smoother and more beautiful.

[0029] In a possible implementation of the present application, the cutting device includes a cutting die and a support seat, the cutting die and the support seat are aligned with each other up and down, and the cutting piece is arranged on the cutting die.

[0030] The cutting die and the support seat can prevent the cutting piece from shifting during cutting, which will cause the center of the decorative hole and the structural hole to be unable to coincide, affecting the appearance of the decorative piece. The cutting die and the support seat can also make the decorative layer fit the support frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a structural diagram of a decorative part;

[0032] Figure 2 This is a schematic diagram of the decomposition structure of the decorative part;

[0033] Figure 3 A schematic structural diagram of a coating device provided in an embodiment of the present application;

[0034] Figure 4 for Figure 3 Detailed structural diagram of the middle coating device;

[0035] Figure 5 for Figure 4 A schematic diagram of a partially enlarged structure of the airbag assembly;

[0036] Figure 6 A schematic structural diagram of a coating device with a heating module provided in an embodiment of the present application;

[0037] Figure 7 A schematic structural diagram of a cutting device provided in an embodiment of the present application;

[0038] Figure 8 for Figure 7 Schematic diagram of the structure of the cutting piece;

[0039] Figure 9 A schematic diagram of the structure of a decorative piece after being cut by a cutting device according to an embodiment of the present application;

[0040] Figure 10 for Figure 7 Schematic diagram of the structure of the middle support seat.

[0041] Reference numerals:

[0042] 10-Decoration parts;

[0043] 110-support frame; 120-decorative layer; 111-structural hole; 121-decorative hole; 122-cladding portion; 1110-rectangular hole; 1111-circular hole; 1210-rectangular decorative hole; 1211-circular decorative hole;

[0044] 20-coating device;

[0045] 200 - covering base; 210 - base upper mold; 220 - base lower mold; 230 - heating module; 211 - working hole; 221 - accommodating cavity; 2110 - rectangular working hole; 2111 - circular working hole; 300 - airbag assembly; 310 - airbag; 320 - trachea;

[0046] 40- cutting device;

[0047] 410 - cutting die; 420 - support base; 411 - cutting piece; 4110 - rectangular cutting piece; 4120 - circular cutting piece; 4111 - rectangular frame; 4112 - extension part. DETAILED DESCRIPTION

[0048] To make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the specific technical solutions of the present application will be further described in detail below in conjunction with the drawings in the embodiments of the present application. The following embodiments are used to illustrate the present application but are not intended to limit the scope of the present application.

[0049] In the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of this application, unless otherwise specified, "multiple" means two or more.

[0050] In addition, in the embodiments of the present application, directional terms such as "up", "down", "left" and "right" are defined relative to the orientation of the components in the drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, and they may change accordingly according to changes in the orientation of the components in the drawings.

[0051] In the embodiments of the present application, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integrated connection; it can be a direct connection or an indirect connection through an intermediate medium.

[0052] In the embodiments of the present application, the terms "comprises," "comprising," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0053] In the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of this application should not be interpreted as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0054] Figure 1 This is a structural diagram of the decorative part. Figure 1As shown, the decorative part 10 is an important part of the car, and has many functions such as isolating noise, providing support for the car, and maintaining the stability of the car. Moreover, the decorative part 10 affects the quality, comfort and aesthetics of the car.

[0055] For example, the decorative element 10 in the embodiment of the present application can be a door panel, a seat, a roof and sun visor, or a pillar. The decorative element 10 can be located inside or outside the vehicle. It should be noted that the type of decorative element and its location in the vehicle are not limited in this application.

[0056] Specifically, the decorative element 10 may be made of a new composite material, thereby reducing the weight of the entire vehicle and improving energy utilization.

[0057] Figure 2 This is a schematic diagram of the decomposition structure of the decorative parts. Figure 2 As shown, the decorative element 10 includes a support frame 110 and a decorative layer 120. The decorative layer 120 can be attached to the support frame 110 and wrapped around the support frame 110.

[0058] The support frame 110 serves as the main framework of the decorative element 10, providing support and securing the decorative layer 120 to prevent deformation caused by vibration or impact during vehicle operation. As the exterior component of the decorative element 10, the decorative layer 120 contributes to creating a premium and comfortable driving environment and enhancing the passenger experience. The material, color, and texture of the decorative layer 120 directly impact the overall aesthetics of the vehicle's interior.

[0059] For example, the decorative layer 120 can be made of genuine leather, which has a good gloss and comfort, enhancing the overall texture of the car's interior and providing a good riding experience. The decorative layer 120 can also be made of artificial leather. Artificial leather has advantages such as excellent wear resistance, near-genuine leather comfort, and a lower price, making it widely used in the decorative layer 120. The decorative layer 120 can also be made of fabric, suede, etc. This embodiment of the present application is not limited to this.

[0060] In addition, the decorative layer 120 also has a certain protective effect, which can prevent external factors such as dust and solutions from eroding and damaging the decorative part 10. The decorative layer 120 can slow down the aging speed of the decorative part 10 and extend the service life of the decorative part 10.

[0061] In some embodiments of the present application, before the decorative layer 120 is bonded to the support frame 110, preliminary preparations need to be completed. First, the style and size of the decorative layer 120 are designed according to the shape and function of the decorative part 10, and then the material of the decorative layer 120 is selected. Then, the decorative layer 120 is cut out according to the designed size. Similarly, the support frame 110 is designed with a corresponding model or drawing according to the shape and function of the decorative part 10, and is processed by injection molding or stamping. The bonding surface of the decorative layer 120 and the support frame 110 is evenly coated with adhesive. For example, the adhesive can be polyolefin hot melt adhesive, water-based polyurethane adhesive, etc. The adhesive needs to be selected considering factors such as the characteristics of the material and the use environment. The decorative layer 120 can be wrapped on the support frame 110 only after the preliminary preparations are completed.

[0062] In addition, refer to Figure 2 As shown, support frame 110 is provided with one or more structural holes 111. These holes 111 can be used to mount other accessories and mechanisms. These holes 111 can also be designed with various elements to enhance the style of the vehicle's interior, creating a unique design that meets the needs of various customers. Furthermore, these holes 111 can be integrally formed with support frame 110 and can be further processed based on actual needs.

[0063] For example, the shape of the structural hole 111 may be circular, square, rectangular, elliptical, etc. This application does not impose any limitation on this.

[0064] As described in the background, in related art, when manufacturing decorative parts 10, the structural hole 111 can only be manually wrapped. This manual wrapping of the structural hole 111 results in uneven edges after wrapping the decorative layer 120 due to inconsistent pulling force, resulting in poor consistency of the decorative part 10. Furthermore, the repeated application of the decorative layer 120 with a finger can leave press marks on the edges of the structural hole 111 in the decorative part 10, affecting the appearance and quality of the automotive trim.

[0065] In light of this, embodiments of the present application provide a tool for wrapping through-holes in automotive decorative parts. The tool comprises a wrapping device, which includes a wrapping base and one or more airbag assemblies. The wrapping base is used to position the decorative part and is provided with at least one working hole, each of which corresponds in position and shape to a structural hole on the decorative part's support frame. Gas is delivered into the airbag through the airbag assembly's inflation tube. Upon inflation, the airbag presses against the wrapping portion of the decorative layer, causing the wrapping portion of the decorative layer surrounding the structural hole to wrap around the hole wall and surrounding area. By using the wrapping device instead of manually wrapping the structural hole, the pressure within the airbag is uniform, and the pressure applied to different locations on the decorative layer is the same. This eliminates unevenness in the wrapped structural hole of the interior trim, thereby improving the appearance and texture of the automotive interior trim. Furthermore, the adjustable gas pressure within the airbag improves the adhesion between the decorative layer and the structural hole, prevents separation between the decorative layer and the structural hole, and enhances the reliability of the interior trim.

[0066] The through-hole hemming tool for automobile decorative parts includes a hemming device 20, which is a processing device for the hemming process of the automobile decorative part 10. The hemming device 20 can be used alone or installed on other equipment, and this application does not limit this.

[0067] Figure 3 This is a schematic diagram of the structure of the coating device provided in the embodiment of the present application. Figure 3 As shown, the covering device 20 includes a covering base 200. The decorative part 10 can be placed in the covering base 200. The covering base 200 is used to position the decorative part 10 to prevent the decorative part 10 from moving during the covering process, which may cause the decorative part 10 to fail in processing. The covering base 200 can improve the yield rate of the decorative part 10. The covering base 200 is provided with one or more working holes 211. Each working hole 211 is provided for the automatic covering of each structural hole 111 on the support frame 110. Therefore, each working hole 211 corresponds to each structural hole 111 in position and matches in shape. Moreover, when the decorative part 10 is placed in the covering base 200, the structural hole 111 on the support frame 110 of the decorative part 10 corresponds to the position of the working hole 211 of the covering base 200.

[0068] For ease of description, the side of the decorative member 10 where the decorative layer 120 is located is referred to as the upper side of the decorative member 10, and conversely, the side of the decorative member 10 where the support frame 110 is located is referred to as the lower side of the decorative member 10. The surface where the support frame 110 and the decorative layer 120 are largely in contact is referred to as the front side of the support frame 110, and conversely, the other surface of the support frame 110 is referred to as the back side of the support frame 110.

[0069] In addition, the decorative layer 120 is provided with a covering portion 122, which is used to wrap the hole wall and the periphery of the structural hole 111. The covering portion 122 is provided corresponding to the structural hole 111. The covering portion 122 is formed by extending inward from the corresponding structural hole 111 in the decorative layer 120, so that the decorative layer 120 has sufficient material to wrap the hole wall of the structural hole 111 of the support frame 110 and the periphery of the structural hole 111 on the back of the support frame 110.

[0070] by Figure 1 and Figure 2 Taking the decorative member 10 shown in FIG as an example, when the structural hole 111 on the support frame 110 includes a rectangular hole 1110 and a circular hole 1111, the working hole 211 on the covering base 200 may also include a rectangular working hole 2110 and a circular working hole 2111. Furthermore, the rectangular working hole 2110 on the covering base 200 corresponds in position to the rectangular hole 1110 on the support frame, and the circular working hole 2111 on the covering base 200 corresponds in position to the circular hole 1111 on the support frame 110.

[0071] Figure 4 for Figure 3 Detailed structural diagram of the middle coating device. Figure 5 for Figure 4 A partial enlarged structural diagram of the airbag assembly. Figure 4 and Figure 5 As shown, the covering device 20 further includes an airbag assembly 300. The airbag assembly 300 is arranged corresponding to the working hole 211. According to the arrangement of the working hole 211, the covering device 20 is provided with one airbag assembly 300 or multiple airbag assemblies 300.

[0072] The airbag assembly 300 includes an airbag 310 and an air tube 320. The air tube 320 connects the airbag 310 to a gas source and is responsible for delivering gas into the airbag 310. The gas can be supplied by an electric air pump, which can meet the needs of rapid and large-scale gas supply. Manual inflation is also possible, providing greater flexibility. This application does not impose any restrictions on the gas source.

[0073] In some embodiments of the present application, the trachea is also used to release the gas in the airbag 310 to facilitate the removal and storage of the airbag 310.

[0074] The trachea 320 delivers gas into the airbag 310, causing the airbag 310 to expand. Conversely, when the gas in the airbag 310 is released through the trachea 320, the airbag 310 will shrink.

[0075] The airbag 310 can expand and contract, and therefore, can be made of rubber. Furthermore, the airbag 310 can be made of silicone rubber, which has excellent high-temperature resistance, preventing the airbag 310 from rupturing due to heat during the coating process, thereby improving the reliability of the coating device 20. Silicone rubber also has good wear resistance, which can prevent the airbag 310 from rupturing due to friction with other objects when inflated.

[0076] The airbag 310 is located on the upper side of the decorative member 10, which can be placed in the cover base 200. The airbag 310 needs to pass through each working hole 211 of the cover base 200 and be inserted into the structural hole 111 corresponding to the position and shape of the working hole 211. This application does not impose any restrictions on the shape and size of the airbag 310. The airbag 310 can simply pass through the working hole 211 and be inserted into the structural hole 111.

[0077] After the decorative component 10 is positioned by the covering base 200, the working holes 211 of the covering base 200 correspond in position and shape to the structural holes 111. The airbag 310 passes through the working holes 211, and gas is delivered into the airbag 310 via the air tube 320. After the airbag 310 inflates, it abuts against the covering portion 122. Under the pressure of the airbag 310, the covering portion 122 wraps around the walls of the structural holes 111 and the periphery of the structural holes 111 on the back of the support frame 110. The covering device 20 replaces the manual wrapping process of the structural holes 111. No pressure marks remain on the walls and periphery of the structural holes 111, which improves the aesthetics of the decorative component 10 and, in turn, the quality and appearance of the vehicle's decoration.

[0078] In addition, since the pressure inside the airbag 310 is the same, the pressure exerted by the airbag 310 on different positions on the covering portion 122 is the same, and the edge of the structural hole 111 will not be uneven after covering, which can improve the consistency of the product.

[0079] In addition, the gas pressure value in the airbag 310 is controllable, and the pressure acting on the decorative layer 120 can be appropriately adjusted to improve the adhesion between the decorative layer 120 and the structural hole 111, prevent the decorative layer 120 from being separated from the structural hole 111, and improve the reliability of the decorative part 10.

[0080] Reference Figure 4 As shown, the covering base 200 includes a base upper mold 210 and a base lower mold 220. The base upper mold 210 and the base lower mold 220 can be aligned vertically, and the decorative member 10 is placed between the base upper mold 210 and the base lower mold 220. The base upper mold 210 and the base lower mold 220 are used to position the decorative member 10 to prevent misalignment between the decorative layer 120 and the support frame 110 when covering the structural hole 111, which would affect the appearance of the decorative member 10.

[0081] In some embodiments of the present application, the upper base mold 210 mates with the upper side of the decorative member 10, and the lower base mold 220 mates with the lower side of the decorative member 10. The upper base mold 210 is located above the lower base mold 220. Pressure can be applied to the decorative member 10 via the upper base mold 210, while the lower base mold 220 supports the decorative member 10. The alignment of the upper base mold 210 and the lower base mold 220 allows the decorative member 10, located between the upper base mold 210 and the lower base mold 220, to be more firmly bonded to the decorative layer 120 and the support frame 110 under the action of pressure and adhesive, thereby improving the adhesion between the decorative layer 120 and the support frame 110.

[0082] The working hole 211 is provided on the base upper mold 210. The airbag 310 passes through the working hole 211 of the base upper mold 210 and is inserted into the structural hole 111. Such a setting facilitates operations such as perforation of the airbag 310.

[0083] In some embodiments of the present application, the cross-sectional area of the working hole 211 is smaller than the cross-sectional area of the structural hole 111. The smaller cross-sectional area and volume of the working hole 211 mean that when the same amount of gas is delivered to the airbag 310, the majority of the gas in the airbag 310 is located at the structural hole 111, exerting greater pressure and ensuring a stronger bond between the decorative layer 120 and the structural hole 111.

[0084] Reference Figure 4 and Figure 5 As shown, the base lower mold 220 is provided with a accommodating cavity 221. The accommodating cavity 221 of the base lower mold 220 is arranged corresponding to the working hole 211 of the base upper mold 210. That is to say, the accommodating cavity 221 of the base lower mold 220 is arranged corresponding to the structural hole 111. After the airbag 310 is inflated with gas, the airbag 310 passes through the working hole of the base upper mold 210 and is inserted into the structural hole 111. After passing through the structural hole 111, a part of the airbag 310 extends into the accommodating cavity 221 of the base lower mold 220, and this part of the airbag 310 is accommodated in the accommodating cavity 221. Under the action of the gas in the airbag 310, the decorative layer 120 wraps around the peripheral position of the structural hole 111 located on the back side of the support frame 110.

[0085] In some embodiments of the present application, the cross-sectional area of the accommodating cavity 221 on the base lower mold 220 is larger than the cross-sectional area of the working hole 211. In this way, the working hole 211 has a positioning function for the airbag 310, preventing the airbag 310 from tilting after entering the accommodating cavity 221, resulting in uneven pressure on the decorative layer 120 and causing wrinkles after wrapping.

[0086] In some embodiments of the present application, when inflated, the airbag 310 needs to pass through the working hole 211 to reach the accommodating cavity 221. To prevent uneven contact between the airbag 310 and the wall of the accommodating cavity 221, which could lead to uneven adhesion between the decorative layer 120 and the back surface of the structural hole 111, the central axis of the accommodating cavity 221 is aligned with the center of the working hole 211. This also prevents uneven forces from acting on the airbag 310, thereby increasing its service life.

[0087] Figure 6 This is a schematic diagram of the structure of the coating device with a heating module provided in the embodiment of the present application. Figure 6 As shown, at least one of the base upper mold 210 and the base lower mold 220 is equipped with a heating module 230, which is used to provide heat to the decorative member 10. The decorative layer 120 and the support frame 110 are initially aligned before being placed on the covering base 200, and the heating module 230 ensures a better fit and connection between the decorative layer 120 and the support frame 110. Adhesive is applied between the decorative layer 120 and the support frame 110 of the decorative member 10, and the heating effect of the heating module 230 activates the adhesive. When the base upper mold 210 and the base lower mold 220 are closed, the decorative layer 120 and the support frame 110 are heated and pressurized, which can improve the bonding strength of the decorative layer 120 and the support frame 110 during press-fit. Furthermore, the heating module 230 can accelerate the curing speed of the adhesive, thereby improving the efficiency of the covering process of the decorative member 10.

[0088] In addition, in addition to completing the wrapping process, the wrapping device 20 can also heat the decorative part 10 during the wrapping process, thereby reducing the need for reheating and improving the processing efficiency of the decorative part 10.

[0089] In some embodiments of the present application, both the upper base mold 210 and the lower base mold 220 are provided with a heating module 230. The heating module 230 of the upper base mold 210 can heat the corresponding area on the decorative layer 120, and the heating module 230 of the lower base mold 220 can heat the corresponding area on the support frame 110. The heating module 230 is detachable from the upper base mold 210 and the lower base mold 220.

[0090] Specifically, taking the working hole 211 on the base upper mold 210 as an example, which includes a rectangular working hole 2110 and a circular working hole 2111 arranged at intervals, three heating modules 230 can be installed on both sides of the rectangular working hole 2110 and the circular working hole 2111 on the base upper mold 210, and two heating modules 230 can be installed on both sides of the two accommodating cavities 221 on the base lower mold 220. The number of heating modules 230 can be set according to actual needs, and is not limited in the embodiments of the present application.

[0091] In addition to providing heat to the corresponding areas of the decorative layer 120 and support frame 110, the heating module 230 can also provide heat to areas of the decorative layer 120 and support frame 110 not provided with the heating module 230 through heat conduction and heat radiation, thereby enhancing the adhesion of these areas. For example, the heating module 230 can indirectly provide heat to the area surrounding the working hole 211 to improve the adhesion of the structural hole 111.

[0092] Figure 7 This is a schematic diagram of the structure of the cutting device provided in an embodiment of the present application. Figure 8 for Figure 7 Schematic diagram of the structure of the cutting parts. Figure 7 and Figure 8 As shown, the through-hole hemming tool for automobile decorative parts further includes a cutting device 40. The cutting device 40 is provided with one or more cutting pieces 411. The cutting piece 411 can cut the decorative layer 120 into the required covering portion 122 according to functional requirements. The cutting device 40 is provided with multiple cutting pieces 411 to complete the cutting work of multiple covering portions 122, thereby improving processing efficiency.

[0093] After the structural holes 111 on the support frame 110 of the decorative element 10 are covered, a cutting piece 411 is used to cut the decorative holes 121 into the decorative layer 120. The material surrounding the decorative holes 121 serves as the covering portion 122, which is used to cover the hole walls and surrounding areas of the structural holes 111. Each cutting piece 411 is positioned correspondingly and shaped to each structural hole 111, ensuring that the decorative holes 121 and the covered structural holes 111 are aligned and matched in shape. This ensures that the covered structural holes 111 have a uniform appearance, enhancing their aesthetics.

[0094] In addition, the decorative holes 121 are cut out on the multiple decorative layers 120 using the cutting piece 411 , and the shape and size of the decorative holes 121 can be kept consistent, thereby ensuring the consistency of the multiple decorative pieces 10 .

[0095] Figure 9 The schematic diagram of the decorative piece structure after being cut by the cutting device provided in the embodiment of the present application is shown in FIG. Figure 9 As shown, the decorative hole 121 is arranged to coincide with the center of the structural hole 111, so that the structural hole 111 presents a uniform appearance after being covered, improving the aesthetics. Furthermore, the cross-sectional area of the decorative hole 121 is smaller than that of the structural hole 111, and the covering portion 122 surrounding the decorative hole 121 can at least cover the hole wall and periphery of the structural hole 111.

[0096] Furthermore, the distance between the edge of the decorative hole 121 and the edge of the structural hole 111 is greater than the thickness of the support frame 110. The material on the decorative layer 120 between the decorative hole 121 and the structural hole 111 can wrap around the wall of the structural hole 111. Furthermore, this portion of material can wrap around the periphery of the structural hole 111 on the back side of the support frame 110. In other words, the covering portion 122 can at least wrap around the wall and periphery of the structural hole 111. By controlling the size of the decorative hole 121, the coverage area around the structural hole 111 can be adjusted.

[0097] Reference Figure 2 and Figure 8 As shown, when the structural hole 111 on the support frame 110 includes a rectangular hole 1110, the cutting piece 411 of the cutting device 40 includes a rectangular cutting piece 4110. The rectangular hole 1110 can be cut out using the rectangular cutting piece 4110. The rectangular cutting piece 4110 includes a rectangular frame 4111 and an extension 4112. The rectangular frame 4111 can cut out the rectangular hole 1110 on the decorative layer 120. The extension 4112 is connected to each corner of the rectangular frame 4111, and the extension 4112 extends outward from the corner of the rectangular frame 4111. The extension 4112 can cut out outwardly extending notches at the four corners of the rectangular hole 1110 to ensure that no wrinkles are generated at the four corners of the rectangular hole 1110 when wrapped, making the decorative piece 10 more flat and beautiful.

[0098] by Figure 1 and Figure 2 For example, when the structural hole 111 on the support frame 110 includes a rectangular hole 1110 and a circular hole 1111, the cutting piece 411 of the cutting device 40 also includes a rectangular cutting piece 4110 and a circular cutting piece 4120. In this way, a rectangular decorative hole 1210 and a circular decorative hole 1211 can be cut out.

[0099] Figure 10 for Figure 7 Schematic diagram of the support structure. Figure 8 and Figure 10As shown, the cutting device 40 includes a cutting die 410 and a support seat 420. The cutting die 410 and the support seat 420 are aligned vertically, and a cutting piece 411 is provided on the cutting die 410. The decorative layer 120 is placed between the cutting die 410 and the support seat 420. The cutting die 410 drives the cutting piece 411 to apply pressure to the decorative layer 120, cutting out a decorative hole 121 on the decorative layer 120. The support seat 420 provides support for the cutting process. The alignment of the cutting die 410 and the support seat 420 allows the decorative layer 120 to be initially fitted and positioned with the support frame 110. The alignment of the cutting die 410 and the support seat 420 also prevents the cutting piece 411 from shifting, which in turn causes the center of the decorative hole 121 to not coincide with the center of the structural hole 111, resulting in uneven wrapping of the structural hole 111, affecting the aesthetics of the decorative piece 10.

[0100] As previously mentioned, the through-hole edging tooling for automotive decorative parts in this embodiment includes a covering device 20 and a cutting device 40. The cutting piece 411 of the cutting device 40 cuts out the decorative hole 121 on the decorative layer 120, and the decorative layer 120 and the support frame 110 are preliminarily fitted and positioned. The cutting device 40 can improve the processing efficiency and appearance consistency of the decorative part 10. Then, the preliminarily fitted decorative part 10 can be placed in the covering device 20. The covering device 20 includes a covering base 200, an airbag assembly 300, and a heating module 230. The decorative layer 120 and the support frame 110 are tightly bonded by hot pressing of the heating module 230 and the covering base 200. After the airbag 310 of the airbag assembly 300 is inflated with gas, it passes through the working hole of the base upper mold 210. A portion of the airbag 310 passes through the structural hole 111 and extends into the accommodating cavity 221 of the base lower mold 220. Under the pressure of the airbag 310, the covering portion 122 wraps around the structural hole 111, covering the hole wall of the structural hole 111 and the surrounding area of the structural hole 111 on the back of the support frame 110. The covering device 20 replaces the manual wrapping process of the structural hole and integrates the hot pressing process, improving the processing efficiency of the structural hole wrapping process, and also enhancing the aesthetics of the decorative part 10, thereby improving the quality and appearance of the automotive decoration.

[0101] The serial numbers of the embodiments of this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments. The above are only preferred embodiments of this application and do not limit the scope of the patent of this application. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of this application, or directly or indirectly applied in other related technical fields, are also included in the scope of patent protection of this application.

Claims

1. A through-hole edging tool for automobile decorative parts, characterized in that: The invention comprises a covering device (20), wherein the covering device (20) comprises: A covering base (200) is used to position the decorative element (10); the covering base (200) is provided with at least one working hole (211), and each working hole (211) corresponds in position to each structural hole (111) on the supporting frame (110) of the decorative element (10) and matches in shape; at least one airbag assembly (300), the airbag assembly (300) comprising an airbag (310) and an air tube (320), the airbag (310) being connected to the air tube (320); The airbag assembly (300) is configured as follows: the airbag (310) is inflated through the air tube (320), the airbag (310) passes through the working hole (211), the airbag (310) abuts against a covering portion (122) on the decorative layer (120) of the decorative component (10) corresponding to the inner side of the structural hole (111), and the airbag (310) presses the covering portion (122) to wrap the hole wall and periphery of the structural hole (111).

2. The through-hole edging tool for automobile decorative parts according to claim 1, characterized in that: The covering base (200) comprises a base upper mold (210) and a base lower mold (220), the base upper mold (210) and the base lower mold (220) are aligned with each other up and down, and the working hole (211) is provided in the base upper mold (210).

3. The through-hole edging tool for automobile decorative parts according to claim 2, characterized in that: The base lower mold (220) is provided with a receiving cavity (221), and the portion of the airbag (310) extending into the base lower mold (220) is received in the receiving cavity (221); Wherein, the cross-sectional area of the accommodating cavity (221) is larger than the cross-sectional area of the working hole (211).

4. The through-hole edging tool for automobile decorative parts according to claim 3, characterized in that: The central axis of the accommodating cavity (221) coincides with the center of the working hole (211).

5. The through-hole edging tool for automobile decorative parts according to any one of claims 2 to 4, characterized in that: At least one of the base upper mold (210) and the base lower mold (220) is provided with a heating module (230), and the heating module (230) is used to provide heat to the decorative element (10) so that the decorative layer (120) is fitted and connected to the support frame (110).

6. The through-hole edging tool for automobile decorative parts according to claim 5, characterized in that: The base upper mold (210) and the base lower mold (220) are both provided with the heating module (230).

7. The through-hole edging tool for automobile decorative parts according to any one of claims 1 to 4, characterized in that: The invention also includes a cutting device (40), wherein the cutting device (40) is provided with at least one cutting piece (411), each cutting piece (411) corresponds in position to each structural hole (111) and matches in shape, and the cutting piece (411) cuts a decorative hole (121) on the decorative layer (120).

8. The through-hole edging tool for automobile decorative parts according to claim 7, characterized in that: The center of the decorative hole (121) coincides with the center of the structural hole (111), and the cross-sectional area of the decorative hole (121) is smaller than the cross-sectional area of the structural hole (111); Wherein, the distance between the edge of the decorative hole (121) and the edge of the structural hole (111) is greater than the thickness of the support frame (110).

9. The through-hole edging tool for automobile decorative parts according to claim 8, characterized in that: The at least one structural hole (111) comprises a rectangular hole (1110), and the cutting piece (411) comprises a rectangular cutting piece (4110); The rectangular cutting piece includes a rectangular frame (4111) and an extension portion (4112), wherein the extension portion (4112) is connected to each corner of the rectangular frame (4111), and the extension portion (4112) extends outward from the corner of the rectangular frame (4111).

10. The through-hole edging tool for automobile decorative parts according to claim 7, characterized in that: The cutting device (40) comprises a cutting die (410) and a support seat (420), wherein the cutting die (410) and the support seat (420) are aligned with each other in an upper and lower position, and the cutting piece (411) is arranged on the cutting die (410).

Images