An automobile interior pad precise positioning and plastic forming device

Abstract

The utility model discloses a kind of automobile interior trim pad precision positioning blister forming device, including workbench, the top of workbench is provided with through slot, the two sides inner wall of through slot are all provided with mounting groove, conveying mechanism is installed in mounting groove, the top of workbench is welded with support, limit mechanism is installed on support, the top of workbench is still fixedly installed with two support plates, two support plates are movably installed with heating mechanism on the side of each other, recess is provided in the through slot of workbench, suction molding mechanism is arranged in recess, and suction molding mechanism includes suction molding mold and vacuum pump. The utility model adopts the processing mode of female die vacuum suction molding, vacuumizing operation is carried out to the inside of plastic mold by vacuum pump, and automobile interior trim pad is formed by plastic plate material being rapidly attached to the surface of suction molding mold under the action of negative pressure, the stability and accuracy of this design guarantee suction molding process, and different specifications and shape automobile interior trim pad production demand can be satisfied.

Description

Technical Field

[0001] This utility model relates to the field of automotive interior cushion vacuum forming technology, specifically to a precise positioning vacuum forming device for automotive interior cushions. Background Technology

[0002] In the automotive manufacturing sector, with the continuous development of the automotive industry, the manufacturing precision and process requirements for automotive interior mats are increasing. Vacuum forming technology can better meet the production needs of interior mats, ensuring that the shape and size of the interior mats meet design standards, and improving product quality and aesthetics. However, to achieve efficient and precise positioning vacuum forming, a specialized and complete set of equipment is needed to coordinate the operation of each link and ensure the stability and accuracy of the production process.

[0003] Although there are some vacuum forming devices on the market, they generally suffer from inaccurate positioning. During the production process, the interior mat material is prone to positional deviations in the conveying, heating, and vacuum forming stages, resulting in inaccurate dimensions and non-compliant shapes of the formed interior mats, which increases the scrap rate and raises production costs. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a precise positioning vacuum forming device for automotive interior mats, thereby solving the problems mentioned in the background art.

[0005] To achieve this objective, the present invention adopts the following technical solution: A precision positioning vacuum forming device for automotive interior mats includes a worktable. A through groove is formed on the top of the worktable, and mounting grooves are formed on both inner walls of the through groove. A conveying mechanism is installed within the mounting grooves. The conveying mechanism includes an upper conveying roller and a lower conveying roller. A bracket is welded to the top of the worktable, and a limiting mechanism is installed on the bracket. The limiting mechanism includes an electric push rod and a limiting frame. Two support plates are fixedly installed on the top of the worktable. A heating mechanism is movably installed on one side of the two support plates that are close to each other. The heating mechanism includes a movable frame and an infrared radiation heating plate, with the infrared radiation heating plate installed within the movable frame. A groove is formed in the through groove of the worktable, and a vacuum forming mechanism is disposed within the groove. The vacuum forming mechanism includes a vacuum forming mold and a vacuum pump disposed below the vacuum forming mold.

[0006] As a preferred embodiment of a precise positioning vacuum forming device for automotive interior mats, the upper and lower conveyor rollers are symmetrically distributed vertically and spaced apart along the length of the mounting groove.

[0007] As a preferred embodiment of a precise positioning vacuum forming device for automotive interior mats, one end of the upper conveyor roller is connected to a first rotating shaft, and the other end of the first rotating shaft is rotatably connected to a moving block. The moving block is slidably connected to the inner wall of the mounting groove of the worktable.

[0008] As a preferred embodiment of a precise positioning vacuum forming device for automotive interior mats, a spring is installed on the top surface of the moving block, and the top of the spring is connected to the inner wall of the mounting groove of the worktable.

[0009] As a preferred embodiment of a precision positioning vacuum forming device for automotive interior mats, one end of the lower conveyor roller is connected to a second rotating shaft, the other end of the second rotating shaft is movably connected to the inner wall of the mounting groove of the worktable, and a first gear is mounted on the outer ring of the second rotating shaft. A second gear is meshed between the two first gears. The second gear is connected to a third rotating shaft, and the other end of the third rotating shaft is movably connected to the inner wall of the mounting groove of the worktable. A drive motor is also installed in the mounting groove, and the output shaft of the drive motor is connected to a drive wheel, which meshes with the first gear.

[0010] As a preferred embodiment of a precise positioning vacuum forming device for automotive interior mats, there are two electric push rods, which are fixedly installed on both sides of the top surface of the bracket, and the output ends of the electric push rods pass through the bracket and are fixedly connected to both sides of the limiting frame.

[0011] As a preferred embodiment of the automotive interior mat precise positioning vacuum forming device, each of the two support plates is equipped with an electric slide table on one side close to each other, and a matching electric slide seat is provided on the electric slide table, and the two electric slide seats are respectively connected to the two side walls of the movable frame.

[0012] As a preferred embodiment of a precise positioning vacuum forming device for automotive interior mats, the vacuum forming mold is slidably connected to the inner wall of the groove on the worktable, a support frame is fixedly installed at the bottom of the vacuum forming mold, and the vacuum pump is installed inside the support frame.

[0013] As a preferred embodiment of a precise positioning vacuum forming device for automotive interior mats, push rod motors are installed on both sides of the bottom of the groove of the worktable. The output ends of the push rod motors are connected to both sides of the bottom surface of the vacuum forming mold. An air extraction pipe is installed at the bottom of the vacuum forming mold, and one end of the air extraction pipe is connected to the input end of a vacuum pump.

[0014] The beneficial effects of this utility model are: (1) The conveying mechanism of this utility model can adaptively adjust its position according to the different thicknesses and materials of automotive interior mat materials, maintain appropriate clamping force, and keep the material stable, non-slipping and non-deviation during the conveying process, thereby improving the accuracy and stability of material conveying and laying a good foundation for subsequent processing.

[0015] (2) This utility model adopts a limiting mechanism structure design. The limiting frame is driven by an electric push rod to limit the material, which ensures the positional accuracy of the material during the processing, reduces the scrap rate caused by material position deviation, and improves production efficiency and product quality.

[0016] (3) This utility model adopts the processing method of vacuum forming with concave mold. The push rod motor drives the vacuum forming mold to move upward and stick tightly to the bottom of the plastic sheet. The vacuum pump performs a vacuuming operation inside the plastic mold. The plastic sheet will quickly stick to the surface of the vacuum forming mold under negative pressure to form an automotive interior mat. This design ensures the stability and precision of the vacuum forming process, improves the quality and efficiency of vacuum forming, and can meet the production needs of automotive interior mats of different specifications and shapes. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments of this utility model will be briefly described below. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the automotive interior mat precision positioning vacuum forming device described in this utility model.

[0019] Figure 2 This is a cross-sectional view of the workbench described in this utility model.

[0020] Figure 3 yes Figure 2 A magnified structural diagram of part A in the middle.

[0021] Figure 4 This is a schematic diagram of the working structure of the vacuum forming mold and the limiting frame described in this utility model.

[0022] In the picture: 1. Workbench; 2. Moving frame; 3. Infrared radiation heating plate; 4. Lower conveyor roller; 5. Upper conveyor roller; 6. Support; 7. Electric push rod; 8. Limit frame; 9. Support plate; 10. Push rod motor; 11. Support frame; 12. Vacuum forming mold; 13. Spring; 14. Moving block; 15. First rotating shaft; 16. Second rotating shaft; 17. First gear; 18. Second gear; 19. Evacuation pipe; 20. Vacuum pump; 21. Third rotating shaft. Detailed Implementation

[0023] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0024] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0025] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0026] In the description of this utility model, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating the connection relationship between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] like Figures 1 to 4 As shown, this utility model provides a precise positioning vacuum forming device for automotive interior mats, including a worktable 1. The top of the worktable 1 has a through groove, and the inner walls on both sides of the through groove have mounting grooves. A conveying mechanism is installed in the mounting groove. The conveying mechanism includes multiple upper conveying rollers 5 and lower conveying rollers 4. The upper conveying rollers 5 and lower conveying rollers 4 are symmetrically distributed vertically and spaced apart along the length of the mounting groove. The plastic sheet of the automotive interior mat is placed between the upper conveying rollers 5 and the lower conveying rollers 4.

[0028] To prevent the plastic sheet from moving, one end of the upper conveyor roller 5 is connected to a first rotating shaft 15, and the other end of the first rotating shaft 15 is rotatably connected to a moving block 14. The moving block 14 is slidably connected to the inner wall of the mounting groove of the worktable 1. At the same time, a spring 13 is installed on the top surface of the moving block 14, and the top of the spring 13 is connected to the top inner wall of the mounting groove of the worktable 1. The distance between the upper conveyor roller 5 and the lower conveyor roller 4 is slightly smaller than the thickness of the plastic sheet, so that the spring 13 is in a compressed state. The elastic force of the spring 13 can position the plastic sheet. This structural design allows the upper conveyor roller 5 to adaptively adjust its position according to the material thickness, ensuring stable clamping of the material with the lower conveyor roller 4.

[0029] One end of the lower conveyor roller 4 is connected to a second rotating shaft 16, and the other end of the second rotating shaft 16 is movably connected to the inner wall of the mounting slot of the worktable 1. A first gear 17 is installed on the outer ring of the second rotating shaft 16, and a second gear 18 is meshed between the two first gears 17. The second gear 18 is connected to a third rotating shaft 21, and the other end of the third rotating shaft 21 is movably connected to the inner wall of the mounting slot of the worktable 1. A drive motor is also installed in the mounting slot, and the output shaft of the drive motor is connected to a drive wheel. The drive wheel meshes with the leftmost or rightmost first gear 17. When the drive motor starts, the drive motor will drive the drive wheel to rotate, and the drive wheel will synchronously drive the first gear 17 and the second gear 18 to rotate, ultimately driving the lower conveyor roller 4 to rotate, thereby driving the plastic sheet to move.

[0030] In this embodiment, the top of the workbench 1 is also fixedly installed with two support plates 9. Each of the two support plates 9 is equipped with an electric slide table on one side close to each other, and the electric slide table is provided with a matching electric slide seat. A heating mechanism is installed between the two electric slide seats. The heating mechanism includes a movable frame 2 and an infrared radiation heating plate 3. The movable frame 2 is preferably made of a high-temperature resistant material and is connected to the side walls of the two electric slide seats. The infrared radiation heating plate 3 is installed inside the movable frame 2. When the conveying mechanism transports the plastic sheet to the processing station, the electric slide table starts and moves the movable frame 2 to directly above the plastic sheet. The material is then heated by infrared radiation through the infrared radiation heating plate 3 to reach a temperature suitable for vacuum forming. After heating is completed, the electric slide table moves the movable frame 2 backward to its original position.

[0031] In this embodiment, the workbench 1 has a groove in the through slot, and a vacuum forming mechanism is provided in the groove. The vacuum forming mechanism specifically includes a vacuum forming mold 12 and a vacuum pump 20 located at the bottom of the vacuum forming mold 12. The vacuum forming mold 12 is slidably connected to the inner wall of the groove, and a support frame 11 is fixedly installed at the bottom of the vacuum forming mold 12. The vacuum pump 20 is installed in the support frame 11, and push rod motors 10 are installed on both sides of the bottom of the groove of the workbench 1. The output end of the push rod motor 10 is connected to both sides of the bottom surface of the vacuum forming mold 12. At the same time, an air extraction pipe 19 is installed at the bottom of the vacuum forming mold 12. One end of the air extraction pipe 19 is connected to the input end of the vacuum pump 20. When the plastic sheet is heated, the push rod motor 10 is started, which drives the vacuum forming mold 12 to move upward and fit tightly against the bottom of the plastic sheet. Meanwhile, a support 6 is welded to the top of the workbench 1. A limiting mechanism is installed on the support 6, which includes an electric push rod 7 and a limiting frame 8. Preferably, two electric push rods 7 are used. The two electric push rods 7 are fixedly installed on both sides of the top surface of the support 6, and the output shaft of the electric push rod 7 passes through the support 6 and is fixedly connected to both sides of the limiting frame 8. After the plastic sheet is heated, the limiting mechanism installed on the support 6 starts to work synchronously with the vacuum forming mechanism. The two electric push rods 7 push the limiting frame 8 to move downwards, closely adhering to the top perimeter of the plastic sheet, and cooperate with the vacuum forming mold 12 to position the plastic sheet and prevent it from shifting during the vacuum forming process. Then, the vacuum pump 20 is started. The vacuum pump 20 evacuates the inside of the vacuum forming mold 12 through the suction pipe 19. The plastic sheet will deform under the negative pressure and quickly adhere to the surface of the vacuum forming mold 12, completing the precise positioning and vacuum forming of the automotive interior mat.

[0032] Working principle and usage process of this utility model: When using this precise positioning vacuum forming device for automotive interior mats, the plastic sheet of the automotive interior mat is first placed between the upper conveyor roller 5 and the lower conveyor roller 4. The plastic sheet is then transported to the processing station by the conveying mechanism. Then, the heating mechanism is activated, and the electric slide table moves the infrared radiation heating plate 3 forward to directly above the plastic sheet to heat it with infrared radiation until it reaches a suitable temperature. After heating is completed, the electric slide table moves the infrared radiation heating plate 3 backward to its original position. Then, the vacuum forming mechanism and the limiting mechanism are started simultaneously. The push rod motor 10 drives the vacuum forming mold 12 to move upward until it is in close contact with the bottom of the plastic sheet. The electric push rod 7 drives the limiting frame 8 to move downward and to be in close contact with the top perimeter of the plastic sheet. It works in conjunction with the vacuum forming mold 12 to position the plastic sheet. Then, the vacuum pump 20 is started. The vacuum pump 20 draws a vacuum inside the vacuum forming mold 12 through the suction pipe 19. The plastic sheet will deform under the negative pressure and quickly adhere to the surface of the vacuum forming mold 12, thereby completing the precise positioning and vacuum forming of the car interior mat.

[0033] It should be stated that the above-described specific embodiments are merely preferred embodiments of this utility model and the technical principles employed. Those skilled in the art should understand that various modifications, equivalent substitutions, and variations can be made to this utility model. However, such variations, as long as they do not depart from the spirit of this utility model, should be within the protection scope of this utility model. Furthermore, some terminology used in this application specification and claims is not limiting, but merely for ease of description.

Claims

1. A precise positioning and plastic forming device for an automotive interior trim pad, characterized in that, The workbench (1) has a through groove on its top and mounting grooves on both sides of its inner walls. A conveying mechanism is installed in the mounting groove. The conveying mechanism includes an upper conveying roller (5) and a lower conveying roller (4). A bracket (6) is welded to the top of the workbench (1). A limiting mechanism is installed on the bracket (6). The limiting mechanism includes an electric push rod (7) and a limiting frame (8). Two support plates (9) are fixedly installed on the top of the workbench (1). A heating mechanism is movably installed on the side of the two support plates (9) that are close to each other. The heating mechanism includes a moving frame (2) and an infrared radiation heating plate (3). The infrared radiation heating plate (3) is installed in the moving frame (2). A groove is opened in the through groove of the workbench (1). A vacuum forming mechanism is set in the groove. The vacuum forming mechanism includes a vacuum forming mold (12) and a vacuum pump (20) set at the bottom of the vacuum forming mold (12).

2. The precise positioning of the automobile interior trim pad blister forming device according to claim 1, characterized in that, The upper conveying roller (5) and the lower conveying roller (4) are symmetrically distributed vertically and are spaced apart along the length of the mounting groove.

3. The precise positioning of the automobile interior trim pad blister forming device according to claim 1, characterized in that, One end of the upper conveyor roller (5) is connected to a first rotating shaft (15), and the other end of the first rotating shaft (15) is rotatably connected to a moving block (14). The moving block (14) is slidably connected to the inner wall of the mounting groove of the worktable (1).

4. The precise positioning of the automobile interior trim pad blister forming device according to claim 3, characterized in that, A spring (13) is installed on the top surface of the movable block (14), and the top end of the spring (13) is connected to the inner wall of the top of the mounting groove of the worktable (1).

5. The precise positioning of the automobile interior trim pad blister forming device according to claim 4, characterized in that, One end of the lower conveyor roller (4) is connected to a second rotating shaft (16), and the other end of the second rotating shaft (16) is movably connected to the inner wall of the mounting groove of the worktable (1). A first gear (17) is installed on the outer ring of the second rotating shaft (16), and a second gear (18) is meshed between the two first gears (17). The second gear (18) is connected to a third rotating shaft (21), and the other end of the third rotating shaft (21) is movably connected to the inner wall of the mounting groove of the worktable (1). A drive motor is also installed in the mounting groove, and the output shaft of the drive motor is connected to a drive wheel. The drive wheel meshes with the first gear (17).

6. The precise positioning of the automobile interior trim pad blister forming device according to claim 1, characterized in that, There are two electric push rods (7). The two electric push rods (7) are fixedly installed on both sides of the top surface of the bracket (6), and the output end of the electric push rod (7) passes through the bracket (6) and is fixedly connected to both sides of the limiting frame (8).

7. The precise positioning of the automobile interior trim pad blister forming device according to claim 1, characterized in that, Electric slides are installed on the sides of the two support plates (9) that are close to each other, and matching electric slides are provided on the electric slides. The two electric slides are respectively connected to the two side walls of the movable frame (2).

8. The precise positioning of the automobile interior trim pad blister forming device according to claim 1, characterized in that, The blister mold (12) is slidably connected to the inner wall of the groove of the workbench (1), and a support frame (11) is fixedly installed at the bottom of the blister mold (12). The vacuum pump (20) is installed inside the support frame (11).

9. The precise positioning of the automobile interior trim pad blister forming device according to claim 8, characterized in that, The recess bottom of the workbench (1) is provided with a push rod motor (10) on both sides, the output end of the push rod motor (10) is connected with the bottom surface of the plastic mold (12) on both sides, the bottom of the plastic mold (12) is provided with an air suction pipe (19), and one end of the air suction pipe (19) is connected with the input end of the vacuum pump (20).

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