Trimming device for automotive interior parts
By designing an edge-wrapping device for automotive interior parts, and utilizing the coordinated work of an upper pressing module, a lower pressing module, an edge-wrapping module, and a perforation module, the problem of matching the through holes in leather parts with the mounting holes in plastic parts was solved, thereby improving edge-wrapping efficiency and the assembly effect of interior parts.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU YUEYUAN AUTOMATION EQUIP CO LTD
- Filing Date
- 2025-07-06
- Publication Date
- 2026-06-12
Smart Images

Figure CN224348436U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of automotive interior manufacturing technology, and in particular to an edge-wrapping device for automotive interior parts. Background Technology
[0002] The car interior is an important component of a vehicle, and its quality directly affects the experience of drivers and passengers. Generally, in the manufacturing process of car interior parts, leather is bonded to a plastic frame using adhesives. The plastic frame is mostly manufactured using injection molding.
[0003] Due to the need for assembly with other interior parts, some plastic frame parts are equipped with mounting holes, which are formed during the injection molding process of the plastic frame parts, while leather parts are not equipped with through holes.
[0004] How to form through holes on leather parts that correspond to the mounting holes on plastic skeleton parts, while ensuring edging efficiency, is an urgent problem to be solved. Utility Model Content
[0005] In view of this, the present application provides an edge-wrapping device for automotive interior parts to solve at least one problem existing in the background art.
[0006] In a first aspect, embodiments of this application provide an edge-wrapping device for automotive interior parts, the edge-wrapping device comprising:
[0007] Upper pressure module;
[0008] A lower pressing module is adapted to the upper pressing module, and an interior trim piece to be pressed is placed on the lower pressing module. The interior trim piece includes a leather piece and a plastic piece with a first through hole stacked together. The upper pressing module and the lower pressing module are combined to make the leather piece adhere to the surface of the plastic piece.
[0009] An edge-binding module is located around the upper pressing module. When the upper pressing module and the lower pressing module are combined, the edge-binding module is used to cover the leather part that is attached to the surface of the plastic part with the inner edge of the plastic part.
[0010] A perforation module is located around the lower pressing module. When the upper pressing module and the lower pressing module are combined, the perforation module is used to cut through the leather part opposite to the position of the first through hole provided on the plastic part.
[0011] In conjunction with a first aspect of this application, in an optional embodiment, the perforated module includes:
[0012] The first driving component is connected to the pressing module;
[0013] A cutting element is movably connected to the first driving element, and the cutting element is capable of cutting through the leather part attached to the surface of the plastic part under the driving action of the first driving element.
[0014] In conjunction with the first aspect of this application, in an optional embodiment, the perforated module further includes:
[0015] The first slide rail is connected to the pressing module;
[0016] A first slider is slidably connected to the first slide rail. At least two cutting elements are connected to the first slider. Under the driving action of the first driving element, the at least two cutting elements follow the first slider and move along the direction of the first slide rail to cut through or move away from the leather piece.
[0017] In conjunction with the first aspect of this application, in an optional embodiment, the cross-section of the cutting element has a first shape in the direction of movement perpendicular to the cutting element.
[0018] The lower membrane frame of the pressing module has a clearance hole, which is a second shape. The first shape is adapted to the second shape so that the cutting member can be aligned with the first through hole of the plastic part.
[0019] In conjunction with the first aspect of this application, in an optional embodiment, both the first shape and the second shape are cross-shaped structures.
[0020] In conjunction with the first aspect of this application, in an alternative embodiment, the end of the cutting member used to contact the leather piece is provided with a plurality of spikes to pierce the leather piece.
[0021] In conjunction with the first aspect of this application, in an optional embodiment, the edge-binding module includes:
[0022] The first edge-binding component is connected to the upper pressing module;
[0023] The second edge-sealing component is connected to the upper pressing module. When the upper pressing module and the lower pressing module are combined...
[0024] The first edging assembly moves along a first direction such that the leather piece covers a portion of the edge of the plastic piece in the first direction;
[0025] The second edging assembly moves along a second direction such that the leather piece covers another portion of the edge of the plastic piece in the second direction.
[0026] In conjunction with a first aspect of this application, in an optional embodiment, the first edge-binding component includes:
[0027] Second drive unit;
[0028] The first push block is movably connected to the second driving member, and the first push block moves along the first direction under the driving action of the second driving member;
[0029] The second edge-binding component includes:
[0030] Third driving component;
[0031] The second pusher is movably connected to the third drive member. Under the driving action of the third drive member, the second pusher moves along the second direction to cover the leather piece with the inner edge of the plastic piece from the first direction and the second direction, respectively.
[0032] In conjunction with the first aspect of this application, in an optional embodiment, the edging module further includes a heating assembly for activating the adhesive between the plastic part and the leather part; the heating assembly includes:
[0033] The fourth driving component is connected to the pressing module;
[0034] A heating element is movably connected to the fourth driving element, and the heating element is positioned near or away from the edge of the plastic part under the driving action of the fourth driving element.
[0035] In conjunction with the first aspect of this application, in an alternative embodiment, the heating element extends along the edge direction of the plastic part.
[0036] The edging device for automotive interior parts provided in this application embodiment has a perforation module around the lower pressing module. The edging module and the perforation module can be performed simultaneously after the upper pressing module and the lower pressing module are combined, without taking up additional time, ensuring the edging efficiency of the edging module, and enabling the perforation of the leather part corresponding to the first through hole of the plastic part. Attached Figure Description
[0037] Figure 1 A schematic diagram of the overall structure of the edging device for automotive interior parts provided in this application embodiment;
[0038] Figure 2 A partial structural schematic diagram of the edging device for automotive interior parts provided in an embodiment of this application;
[0039] Figure 3 An exploded view of the perforated module, upper mold frame, and lower mold frame in the edging device for automotive interior parts provided in this embodiment of the application;
[0040] Figure 4 A schematic diagram of the structure of the first slider and the cutting element in the edging device for automotive interior parts provided in this application embodiment;
[0041] Figure 5 An exploded view of the perforated module and the upper tire film frame in the edging device for automotive interior parts provided in this application embodiment;
[0042] Figure 6 A schematic diagram of the edging module, upper mold frame, and lower mold frame in the edging device for automotive interior parts provided in this application embodiment;
[0043] Figure 7 for Figure 6 Enlarged view of point A in the middle.
[0044] Figure label:
[0045] 100. Edge binding device;
[0046] 10. Upper pressing module; 110. Upper pressure plate; 120. Upper mold frame; 20. Lower pressing module; 210. Lower pressure plate; 220. Lower mold frame; 221. Clearance hole;
[0047] 30. Edge-binding module; 310. First edge-binding component; 311. Second driving component; 312. First push block; 320. Second edge-binding component; 321. Third driving component; 322. Second push block; 330. Heating component; 331. Fourth driving component; 332. Heating component;
[0048] 40. Perforation module; 410. First driving component; 420. Cutting component; 421. Spike; 430. First slide rail; 440. First slider;
[0049] 50. Plastic parts. Detailed Implementation
[0050] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided to make the present invention more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore repeated descriptions of them will be omitted.
[0051] The terms used to describe position and direction in this utility model are illustrated with the accompanying drawings, but changes can be made as needed, and all such changes are included within the scope of protection of this utility model.
[0052] Please refer to Figure 1 This application provides an edge-wrapping device 100 for automotive interior parts. The edge-wrapping device 100 includes an upper pressing module 10, a lower pressing module 20, an edge-wrapping module 30, and a perforation module 40.
[0053] The lower pressing module 20 includes a lower pressing plate 210 and a lower mold frame 220. The lower mold frame 220 is mounted on the lower pressing plate 210 and is adapted to and used to hold the plastic part 50. The upper pressing module 10 includes an upper pressing plate 110 and an upper mold frame 120. The upper mold frame 120 is mounted on the upper pressing plate 110 and is adapted to both the plastic part 50 and the lower mold frame 220. When the upper pressing module 10 and the lower pressing module 20 are closed, the leather part adheres to the surface of the plastic part 50 under the pressure generated during mold closing, ensuring the adhesion between the leather part and the plastic part 50. Of course, an adhesive is applied to the leather part and the plastic part 50 before they are adhered to ensure the adhesion effect between them.
[0054] The edge-binding module 30 is located around the upper pressing module 10. When the upper pressing module 10 and the lower pressing module 20 are closed, the edge-binding module 30 is used to cover the leather part that is attached to the surface of the plastic part 50 with the inner edge of the plastic part 50.
[0055] The perforation module 40 is located around the lower pressing module 20. When the upper pressing module 10 and the lower pressing module 20 are closed, the perforation module 40 is used to cut through the leather part opposite to the position of the first through hole provided in the plastic part 50.
[0056] In this embodiment, the edge-wrapping module 30 typically requires multiple actions to achieve the edge-wrapping action on the plastic part 50, while the perforation module 40 typically only requires one action to achieve the perforation action. This can be understood as the perforation action performed by the perforation module 40 being completed during the edge-wrapping action of the edge-wrapping module 30.
[0057] In this embodiment, the edge-binding module 30 and the perforation module 40 can be performed simultaneously after the upper pressing module 10 and the lower pressing module 20 are closed, without taking up additional time, ensuring the edge-binding efficiency of the edge-binding module 30, and enabling the perforation of the leather part corresponding to the first through hole of the plastic part 50.
[0058] In some embodiments, please refer to Figures 1 to 5 The perforation module 40 includes a first driving member 410 and a cutting member 420. The first driving member 410 is connected to the lower pressure plate 210 of the lower pressure module 20, and the cutting member 420 is movably connected to the first driving member 410. Under the driving action of the first driving member 410, the cutting member 420 can cut through the leather part attached to the surface of the plastic part 50. The first driving member 410 can be cylinder-driven, but it is not limited to this.
[0059] In this embodiment, after the upper pressing mold 10 and the lower pressing mold 20 are closed, the cutting component 420 cuts the leather part under the driving action of the first driving component 410. Of course, the lower mold frame 220 of the lower pressing mold 20 has a clearance hole 221 to avoid the cutting component 420, so that the cutting component 420 cuts the leather part after passing through the lower mold frame 220 and the first through hole on the plastic part 50.
[0060] It should be noted that the cutting component 420 cuts the leather parts, including but not limited to piercing the leather parts corresponding to the first through hole and cutting off part of the leather parts.
[0061] In some embodiments, the perforation module 40 further includes a first slide rail 430 and a first slider 440. The first slide rail 430 is connected to the pressure plate 210 of the pressure module 20. The first slider 440 is slidably connected to the first slide rail 430. At least two cutting elements 420 are connected to the first slider 440. Under the driving action of the first driving element 410, the at least two cutting elements 420 follow the first slider 440 and move along the direction of the first slide rail 430 to cut through or move away from the leather piece.
[0062] Generally, the plastic part 50 has at least two first through holes, each corresponding to a cutting element 420. There is a certain distance between the at least two first through holes. Therefore, at least two cutting elements 420 are mounted on the first slider 440, and the first slider 440 is adapted to the first slide rail 430. This ensures the consistency and stability of the at least two cutting elements 420 during movement, thereby guaranteeing the accuracy of the cutting position of the cutting elements 420 on the leather part and ensuring the cutting effect. Furthermore, the number of first slide rails 430 can be selected according to the area of the first slider 440; this embodiment does not limit the number.
[0063] In an optional embodiment, the cross-section of the cutting member 420 is a first shape in the direction of movement perpendicular to the cutting member 420, and the lower mold frame 220 of the pressing mold has a clearance hole 221, which is a second shape. The first shape and the second shape are adapted to each other so that the cutting member 420 can be aligned with the first through hole of the plastic part 50.
[0064] Furthermore, the first shape and the second shape are cross-shaped structures.
[0065] By utilizing the matching of the first and second shapes, the precision of the cutting position of the cutting part 420 on the leather parts can be guaranteed, further ensuring the manufacturing quality of the automotive interior parts.
[0066] In some embodiments, the end of the cutting member 420 that contacts the leather piece is provided with a plurality of spikes 421 to pierce the leather piece.
[0067] It should be noted that the first through hole on the plastic part 50 is a mounting hole for assembly with other automotive interior parts. After the leather part is cut, the locking component uses the first through hole on the plastic part 50 to assemble the various interior parts. Generally, after cutting the leather part corresponding to the first through hole on the plastic part 50, the first through hole is then manually edged. This improves the firmness of the locking component acting on the first through hole, thereby improving the assembly effect of the automotive interior parts.
[0068] By setting multiple spikes 421 at the end of the cutting part 420, it is possible to pierce the leather part, allowing the operator to perform edge binding operation on the first through hole; in addition, the spikes 421 can be reused multiple times, reducing edge binding costs.
[0069] In an alternative embodiment, such as Figure 1 and Figure 6 As shown, the edge-sealing module 30 includes a first edge-sealing component 310 and a second edge-sealing component 320. Both the first edge-sealing component 310 and the second edge-sealing component 320 are connected to the upper pressure plate 110 of the upper pressure module 10. When the upper pressure module 10 and the lower pressure module 20 are closed, the first edge-sealing component 310 moves along a first direction (i.e., Figure 6 The second edge-binding assembly 320 moves in the direction of arrow s1 shown in the diagram, so that the leather piece wraps around a portion of the inner edge of the plastic piece 50 in the first direction. The second edge-binding assembly 320 moves in the second direction (i.e.,...) Figure 6 The leather piece moves in the direction of arrow s2 shown in the diagram so that it wraps around the inner edge of another portion of the plastic piece 50 in the second direction.
[0070] In this embodiment, the first edge-binding component 310 and the second edge-binding component 320 are used to perform edge-binding action on a portion of the edge area of the plastic part 50.
[0071] In some embodiments, such as Figure 6 and Figure 7 As shown, the first edge-binding assembly 310 includes a second driving member 311 and a first pusher 312. The first pusher 312 is movably connected to the second driving member 311 and moves along a first direction under the driving action of the second driving member 311. The second edge-binding assembly 320 includes a third driving member 321 and a second pusher 322. The second pusher 322 is movably connected to the third driving member 321 and moves along a second direction under the driving action of the third driving member 321, so as to wrap the leather piece around the inner edge of the plastic piece 50 from the first direction and the second direction respectively.
[0072] Both the second drive unit 311 and the third drive unit 321 can be driven by cylinders, but they are not limited to this.
[0073] The shapes of the second push block 322 and the first push block 312 can be set according to the structure of the edge of the plastic part 50 so that the first push block 312 and the second push block 322 can be adapted to the edge of the plastic part 50 when they move along the edge of the plastic part 50, thereby allowing the leather part to be attached to the inner side of the edge of the plastic part 50.
[0074] In an optional embodiment, the edge-binding module 30 further includes a heating assembly 330 for activating the adhesive between the plastic part 50 and the leather part. The heating assembly 330 includes a fourth driving member 331 and a heating member 332. The fourth driving member 331 is connected to the lower pressure plate 210 of the lower pressure module 20, and the heating member 332 is movably connected to the fourth driving member 331. The heating member 332 moves closer to or away from the edge of the plastic part 50 under the driving action of the fourth driving member 331.
[0075] The heating element 332 can be a heating tube, but it is not limited to this. The fourth driving element 331 can be a cylinder driven, but it is not limited to this.
[0076] After the upper pressing module 10 and the lower pressing module 20 close, the heating element 332 moves to the position of the leather part to be edged under the driving force of the fourth driving element 331 and heats that position to activate the adhesive between the leather part and the plastic part 50. The activated adhesive can improve the connection and adhesion between the plastic part 50 and the leather part. After heating is completed, the edge-binding module 30 begins the edge-binding action on the plastic part 50, which can improve the edge-binding effect.
[0077] In an optional embodiment, the heating element 332 extends along the edge of the plastic part 50. This can be understood as the heating element 332 extending along the edge of the plastic part 50 enabling uniform baking and activation of the adhesive between the plastic part 50 and the leather part to be edged, thereby improving the edge-binding effect between the plastic part 50 and the leather part.
[0078] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and alterations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention, and all such changes should fall within the protection scope of the claims of the present invention.
Claims
1. A binding device for automotive interior parts, characterized in that, The edge-binding device includes: Upper pressure module; A lower pressing module is adapted to the upper pressing module, and an interior trim piece to be pressed is placed on the lower pressing module. The interior trim piece includes a leather piece and a plastic piece with a first through hole stacked together. The upper pressing module and the lower pressing module are combined to make the leather piece adhere to the surface of the plastic piece. An edge-binding module is located around the upper pressing module. When the upper pressing module and the lower pressing module are combined, the edge-binding module is used to cover the leather part that is attached to the surface of the plastic part with the inner edge of the plastic part. A perforation module is located around the lower pressing module. When the upper pressing module and the lower pressing module are combined, the perforation module is used to cut through the leather part opposite to the position of the first through hole provided on the plastic part.
2. The edging device for automotive interior parts according to claim 1, characterized in that, The perforated module includes: The first driving component is connected to the pressing module; A cutting element is movably connected to the first driving element, and the cutting element is capable of cutting through the leather part attached to the surface of the plastic part under the driving action of the first driving element.
3. The edging device for automotive interior parts according to claim 2, characterized in that, The perforated module also includes: The first slide rail is connected to the pressing module; A first slider is slidably connected to the first slide rail. At least two cutting elements are connected to the first slider. Under the driving action of the first driving element, the at least two cutting elements follow the first slider and move along the direction of the first slide rail to cut through or move away from the leather piece.
4. The edging device for automotive interior parts according to claim 2, characterized in that, In the direction of movement perpendicular to the cutting element, the cross-section of the cutting element has a first shape. The lower membrane frame of the pressing module has a clearance hole, which is a second shape. The first shape is adapted to the second shape so that the cutting member can be aligned with the first through hole of the plastic part.
5. The edging device for automotive interior parts according to claim 4, characterized in that, Both the first shape and the second shape are cross-shaped structures.
6. The edging device for automotive interior parts according to claim 2, characterized in that, The cutting tool has multiple spikes at its end that contacts the leather piece to pierce it.
7. The edging device for automotive interior parts according to claim 1, characterized in that, The edge-sealing module includes: The first edge-binding component is connected to the upper pressing module; The second edge-sealing component is connected to the upper pressing module. When the upper pressing module and the lower pressing module are combined... The first edging assembly moves along a first direction such that the leather piece covers a portion of the edge of the plastic piece in the first direction; The second edging assembly moves along a second direction such that the leather piece covers another portion of the edge of the plastic piece in the second direction.
8. The edging device for automotive interior parts according to claim 7, characterized in that, The first edge-binding component includes: Second drive unit; The first push block is movably connected to the second driving member, and the first push block moves along the first direction under the driving action of the second driving member; The second edge-binding component includes: Third driving component; The second pusher is movably connected to the third drive member. Under the driving action of the third drive member, the second pusher moves along the second direction to cover the leather piece with the inner edge of the plastic piece from the first direction and the second direction, respectively.
9. The edging device for automotive interior parts according to claim 7, characterized in that, The edge-binding module further includes a heating component for activating the adhesive between the plastic part and the leather part; the heating component includes: The fourth driving component is connected to the pressing module; A heating element is movably connected to the fourth driving element, and the heating element is positioned near or away from the edge of the plastic part under the driving action of the fourth driving element.
10. The edging device for automotive interior parts according to claim 9, characterized in that, The heating element extends along the edge of the plastic part.