Hot-pressing covering machine for automotive trim panel

Abstract

The invention provides a hot-pressing edge covering machine for an automotive trim panel, and relates to the technical field of hot-pressing edge covering, the hot-pressing edge covering machine comprises an X-axis linear module, an X-axis guide mechanism and a mounting beam which are arranged in parallel, and the two ends of the bottom of the mounting beam are connected with the output end of the X-axis linear module and a guide sliding block of the X-axis guide mechanism respectively; a first Y-axis linear module and a second Y-axis linear module are mounted at the front end and the rear end of the mounting beam correspondingly, a second Z-axis linear module is arranged at the output end of the first Y-axis linear module, a gluing mechanism is arranged at the output end of the second Z-axis linear module, and a first Z-axis linear module is arranged at the output end of the second Y-axis linear module. An adjustable hot press is arranged at the output end of the first Z-axis linear module. The edge of the interior trim panel is subjected to hot pressing through the multiple hot pressing modules and the multiple hot pressing units, so that the edge covering material is tightly combined with the interior trim panel under the action of heating and pressure, and the edge covering purpose is achieved.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of hot press edge binding, and particularly relates to a hot press edge binding machine for automobile interior trim panels. Background Art

[0002] In the field of automobile manufacturing, as a key component affecting the aesthetics and comfort inside the vehicle, the edge binding quality of interior trim panels has attracted much attention. With the continuous improvement of consumers' requirements for the quality of automobile interiors and the development trend of automated and intelligent production in the automobile industry, higher requirements are put forward for the performance of interior trim panel edge binding equipment. In the early stage, the edge binding process of automobile interior trim panels mostly adopted manual operation or semi-automatic equipment. Manual edge binding has problems such as low production efficiency and high labor intensity, and the edge binding quality is significantly affected by the technical level and working state of operators, making it difficult to ensure consistency. Although semi-automatic equipment has improved production efficiency to a certain extent, in the processes of glue application and hot pressing, there are often defects such as insufficient positioning accuracy and inaccurate pressure control. For example, when traditional equipment processes interior trim panels of different sizes and shapes, it is necessary to frequently adjust the mechanical structure, which is time-consuming and laborious, seriously affecting the production progress. With the increasingly complex shapes of automobile interior trim panels, there are more designs with arcs, steps or corners. The rigid connection structure of traditional hot pressing equipment is difficult to adapt to these complex curved surfaces, easily resulting in problems such as loose local edge binding and uneven surfaces. During the hot pressing process, the heating method of traditional equipment is usually large-area heating, which not only has high energy consumption, but also has poor temperature control accuracy, and there is a large temperature difference on the surface of the hot pressing block, unable to ensure uniform activation effect of the glue, thus affecting the edge binding quality. Summary of the Invention

[0003] 1. Technical problems to be solved by the invention: The present invention provides a hot press edge binding machine for automobile interior trim panels to solve the technical problems existing in the above background art.

[0004] 2. Technical solutions: To achieve the above object, the technical solution provided by the present invention is: a hot press edge binding machine for automobile interior trim panels, including an X-axis linear module, an X-axis guiding mechanism and a mounting beam arranged in parallel. The two ends of the bottom of the mounting beam are respectively connected to the output end of the X-axis linear module and the guiding slider of the X-axis guiding mechanism. The front and rear ends of the mounting beam are respectively equipped with a Y-axis linear module one and a Y-axis linear module two. A Z-axis linear module two is arranged on the output end of the Y-axis linear module one, and a glue application mechanism is arranged on the output end of the Z-axis linear module two. A Z-axis linear module one is arranged on the output end of the Y-axis linear module two, and an adjustable hot press is arranged on the output end of the Z-axis linear module one.

[0005] Preferably, the adjustable hot press includes an L-shaped mounting block fixed to the output end of the first Z-axis linear module. An installation frame is provided at the lower end of the L-shaped mounting block, and a plurality of hot pressing modules are provided on the installation frame.

[0006] Preferably, each hot pressing module includes a mounting plate fixed to the installation frame. A lifting hydraulic cylinder is fixedly installed on the mounting plate. The piston rod of the lifting hydraulic cylinder is fixedly connected to a lifting frame, and a plurality of hot pressing units are equidistantly installed on the lifting frame.

[0007] Preferably, a second slider is fixedly installed on the back of the lifting frame, and a second guide rail is fixedly installed on the mounting plate. The second slider is slidably installed up and down on the second guide rail.

[0008] Preferably, each hot pressing unit includes an adjusting block. A first slider is fixedly installed on the back of the adjusting block. A first guide rail is fixedly installed on the lifting frame. The first slider is slidably installed up and down on the first guide rail. A heating sleeve is fixedly installed on the adjusting block. A guiding sleeve is fixedly installed on the lifting frame. The heating sleeve is slidably installed up and down within the guiding sleeve. The upper end of the adjusting block is fixedly connected to a spring, and the upper end of the spring is fixedly connected to the lifting frame.

[0009] Preferably, the heating sleeve includes an installation cylinder. A heating rod is arranged within the installation cylinder. A hot pressing block is provided at the bottom of the installation cylinder. The heating rod is used to heat the hot pressing block.

[0010] 3. Beneficial effects: Adopting the technical solution provided by the present invention, compared with the prior art, the following beneficial effects are achieved: Through the cooperation of the X-axis linear module, X-axis guiding mechanism, installation beam, first Y-axis linear module, second Y-axis linear module, first Z-axis linear module, and second Z-axis linear module, the present invention can precisely control the positions and movements of the gluing mechanism and the adjustable hot press, realizing high-precision gluing and hot pressing operations, and improving the quality and consistency of edge wrapping.

[0011] The present invention performs hot pressing on the edges of the interior trim panel through multiple hot pressing modules and hot pressing units, enabling the edge wrapping material to be tightly combined with the interior trim panel under the action of heating and pressure, thereby achieving the purpose of edge wrapping. The number, spacing, etc. of the hot pressing modules and hot pressing units in the adjustable hot press can be adjusted according to the requirements of different interior trim panels, and components such as springs in the hot pressing units can adapt to different pressure requirements, improving the versatility and adaptability of the equipment.

[0012] The heating rod inside the heating sleeve of the present invention can quickly and effectively heat the hot pressing block, soften the edge wrapping material at a suitable temperature, and better fit with the interior trim panel. At the same time, multiple hot pressing units are evenly distributed, which can ensure uniform hot pressing pressure and avoid problems such as insecure local edge wrapping or uneven surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the overall structure of the present invention from another angle; Figure 3 is a schematic diagram of the structure of the adjustable hot press of the present invention; Figure 4 is a schematic diagram of the structure of the hot pressing module of the present invention; Figure 5 is a schematic diagram of the structure of the hot pressing unit of the present invention; Figure 6 is a schematic diagram of the structure of the heating sleeve of the present invention; Figure 7 is a schematic diagram of the structure of the mounting plate of the present invention.

[0014] REFERENCE NUMERALS: 1, X-axis linear module; 2, X-axis guiding mechanism; 3, mounting beam; 4, Y-axis linear module one; 5, Y-axis linear module two; 6, Z-axis linear module one; 7, adjustable hot press; 71, L-shaped mounting block; 72, mounting frame; 73, hot pressing module; 74, mounting plate; 75, lifting hydraulic cylinder; 76, lifting frame; 77, hot pressing unit; 771, adjusting block; 772, heating sleeve; 7721, mounting cylinder; 7722, heating rod; 7723, hot pressing block; 773, guiding sleeve; 774, spring; 775, slider one; 776, guide rail one; 78, slider two; 79, guide rail two; 8, Z-axis linear module two; 9, glue applying mechanism. DETAILED DESCRIPTION OF THE INVENTION

[0015] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0016] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0017] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, the meaning of "a plurality" is two or more unless otherwise specifically defined.

[0018] In the present invention, unless otherwise clearly specified and defined, the terms "mounted", "connected", "coupled", "fixed", "provided with", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0019] It should be noted that the structures not introduced in the present invention, since they do not involve the design key points and improvement directions of the present invention, are the same as the prior art or can be implemented using the prior art, and will not be elaborated herein. Embodiment

[0020] Referring to the attached Figures 1 to 7 , a hot pressing and edge wrapping machine for automotive interior trim panels, includes an X-axis linear module 1, an X-axis guiding mechanism 2, and a mounting beam 3 arranged in parallel. The two ends of the bottom of the mounting beam 3 are respectively connected to the output end of the X-axis linear module 1 and the guiding slider of the X-axis guiding mechanism 2. The front and rear ends of the mounting beam 3 are respectively equipped with a Y-axis linear module one 4 and a Y-axis linear module two 5. A Z-axis linear module two 8 is arranged on the output end of the Y-axis linear module one 4, and a gluing mechanism 9 is arranged on the output end of the Z-axis linear module two 8. A Z-axis linear module one 6 is arranged on the output end of the Y-axis linear module two 5, and an adjustable hot press 7 is arranged on the output end of the Z-axis linear module one 6.

[0021] The adjustable hot press 7 includes an L-shaped mounting block 71 fixed to the output end of the Z-axis linear module 1. The lower end of the L-shaped mounting block 71 is provided with a mounting frame 72, and a number of hot pressing modules 73 are arranged on the mounting frame 72.

[0022] The hot pressing module 73 includes a mounting plate 74 fixed to the mounting frame 72. An elevating hydraulic cylinder 75 is fixedly installed on the mounting plate 74. The piston rod of the elevating hydraulic cylinder 75 is fixedly connected to an elevating frame 76, and a number of hot pressing units 77 are equidistantly arranged on the elevating frame 76.

[0023] A slider 2 78 is fixedly installed on the back of the elevating frame 76, and a guide rail 2 79 is fixedly installed on the mounting plate 74. The slider 2 78 is slidably installed up and down on the guide rail 2 79.

[0024] The hot pressing unit 77 includes an adjusting block 771. A slider 1 775 is fixedly installed on the back of the adjusting block 771. A guide rail 1 776 is fixedly installed on the elevating frame 76. The slider 1 775 is slidably installed up and down on the guide rail 1 776. A heating sleeve 772 is fixedly installed on the adjusting block 771. A guiding sleeve 773 is fixedly installed on the elevating frame 76. The heating sleeve 772 is slidably installed up and down within the guiding sleeve 773. The upper end of the adjusting block 771 is fixedly connected to a spring 774, and the upper end of the spring 774 is fixedly connected to the elevating frame 76.

[0025] The guide rail 2 79, the slider 2 78, the slider 1 775, and the guide rail 1 776 ensure that the hot pressing unit 77 moves precisely in the vertical direction, avoiding lateral deviation and ensuring the perpendicularity of the hot pressing block 7723 to the edge of the interior trim panel. The guiding sleeve 773 further restricts the movement trajectory of the heating sleeve 772, preventing the heating component from tilting during the hot pressing process and ensuring that the hot pressing block 7723 fully contacts the edge material.

[0026] When the spring 774 is in the initial contact stage, the spring 774 is pre-compressed to generate a buffering force, avoiding indentation or displacement caused by the instantaneous impact of the hot pressing block 7723 on the edge material. When the hydraulic cylinder 75 is pressurized, the spring 774 is adaptively compressed according to the contact resistance, enabling the hot pressing block 7723 to uniformly fit complex curved surfaces (such as arc-shaped edges). When the hydraulic cylinder 75 retracts, the spring 774 rebounds to assist the hot pressing unit 77 to quickly disengage from the workpiece, reducing the risk of glue adhesion. The spring 774 enables each hot pressing unit 77 to independently adapt to the undulations of the workpiece surface, avoiding local virtual pressing caused by uneven plates in traditional rigid hot pressing heads. When dealing with a door interior trim panel with multiple bends, the spring 774 ensures that the hot pressing block 7723 can still provide stable pressure at the corners, avoiding edge warping. It can handle the edges of interior trim panels with arcs, steps, or corners, such as the U-shaped grooves of car door interior trim panels and the three-dimensional curved surfaces of instrument panels. By replacing the springs 774 with different stiffnesses, it can adapt to the compression characteristics of different edge materials such as PU leather, fabric, and PVC.

[0027] The heating sleeve 772 includes a mounting cylinder 7721, in which a heating rod 7722 is arranged. A hot pressing block 7723 is arranged at the bottom of the mounting cylinder 7721. The heating rod 7722 is used to heat the hot pressing block 7723. The heating sleeve 772 directly wraps the hot pressing block 7723, reducing heat conduction loss, controlling the temperature difference on the surface of the hot pressing block within ±3°C, and ensuring uniform activation effect of the glue. The hot pressing block 7723 and the heating sleeve 772 are heated, reducing the interference of low ambient temperature on the hot pressing process and improving the temperature control accuracy. Compared with the traditional large-area heating method, the energy consumption is reduced by more than 40%.

[0028] Working principle: The operator places the cut interior trim panel in the positioning fixture on the workbench. The Y-axis linear module 4 drives the Z-axis linear module 8 to move along the Y-axis, and the X-axis linear module 1 synchronously drives the mounting beam 3 to move along the X-axis, so that the gluing mechanism 9 reaches above the edge of the interior trim panel according to the preset trajectory. The Z-axis linear module 8 drives the gluing mechanism 9 to descend to the gluing height. The glue pump is started, and the hot melt glue or water-based glue is evenly extruded to the edge of the interior trim panel through the metering valve. The gluing width is usually 3 - 8 mm. The gluing mechanism 9 follows the X / Y-axis linkage trajectory to complete the gluing of the entire edge of the interior trim panel. After gluing is completed, the Z-axis linear module 8 drives the gluing mechanism 9 to rise and reset.

[0029] The Y-axis linear module 5 drives the Z-axis linear module 6 to move along the Y-axis, and the X-axis linear module 1 synchronously adjusts the position, so that the adjustable hot press 7 quickly moves above the area to be hot pressed. The Z-axis linear module 6 drives the adjustable hot press 7 to descend until the hot pressing block 7723 is about 10 mm - 50 mm away from the edge material. The lifting hydraulic cylinder 75 is filled with hydraulic oil, and the piston rod pushes the lifting frame 76 to move downward. The hot pressing block 7723 of the hot pressing unit 77 contacts the edge material (such as PU leather, fabric), and the spring 774 starts to compress, providing an initial buffering force. The heating rod 7722 maintains the temperature of the hot pressing block 7723, softening the edge material and fusing it with the glue. The holding pressure time is usually 1 - 3 seconds to ensure sufficient curing of the glue. The lifting hydraulic cylinder 75 is depressurized, the spring 774 rebounds, and the hot pressing unit 77 rises. The Z-axis linear module 6 drives the adjustable hot press 7 to rise and reset as a whole.

[0030] The above-described embodiments only represent certain implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims

1. A hot pressing and edge wrapping machine for automotive interior trim panels, characterized in that: It includes an X-axis linear module (1), an X-axis guiding mechanism (2) and a mounting beam (3) arranged in parallel. The two ends of the bottom of the mounting beam (3) are respectively connected to the output end of the X-axis linear module (1) and the guiding slider of the X-axis guiding mechanism (2). A Y-axis linear module one (4) and a Y-axis linear module two (5) are respectively installed at the front and rear ends of the mounting beam (3). A Z-axis linear module two (8) is arranged at the output end of the Y-axis linear module one (4), and a gluing mechanism (9) is arranged at the output end of the Z-axis linear module two (8). A Z-axis linear module one (6) is arranged at the output end of the Y-axis linear module two (5), and an adjustable hot press (7) is arranged at the output end of the Z-axis linear module one (6).

2. The hot pressing edge wrapping machine for automobile interior trim panel according to claim 1, wherein: The adjustable hot press (7) includes an L-shaped mounting block (71) fixed to the output end of the Z-axis linear module one (6). An installation frame (72) is arranged at the lower end of the L-shaped mounting block (71), and a plurality of hot pressing modules (73) are arranged on the installation frame (72).

3. The hot pressing and edge wrapping machine for automobile interior trim panel according to claim 2, characterized in that: The hot pressing module (73) includes a mounting plate (74) fixed to the installation frame (72). A lifting hydraulic cylinder (75) is fixedly installed on the mounting plate (74). The piston rod of the lifting hydraulic cylinder (75) is fixedly connected to a lifting frame (76), and a plurality of hot pressing units (77) are equidistantly installed on the lifting frame (76).

4. The hot pressing and edge wrapping machine for automobile interior trim panel according to claim 3, characterized in that: A slider two (78) is fixedly installed on the back of the lifting frame (76), and a guide rail two (79) is fixedly installed on the mounting plate (74). The slider two (78) is slidably installed up and down on the guide rail two (79).

5. The hot pressing and edge wrapping machine for automobile interior trim panel according to claim 3, characterized in that: The hot pressing unit (77) includes an adjusting block (771). A slider one (775) is fixedly installed on the back of the adjusting block (771). A guide rail one (776) is fixedly installed on the lifting frame (76). The slider one (775) is slidably installed up and down on the guide rail one (776). A heating sleeve (772) is fixedly installed on the adjusting block (771). A guiding sleeve (773) is fixedly installed on the lifting frame (76). The heating sleeve (772) is slidably installed up and down in the guiding sleeve (773). The upper end of the adjusting block (771) is fixedly connected to a spring (774), and the upper end of the spring (774) is fixedly connected to the lifting frame (76).

6. The hot pressing and edge wrapping machine for automobile interior trim panel according to claim 5, wherein: The heating sleeve (772) includes a mounting cylinder (7721). A heating rod (7722) is arranged in the mounting cylinder (7721). A hot pressing block (7723) is arranged at the bottom of the mounting cylinder (7721). The heating rod (7722) is used to heat the hot pressing block (7723).

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