A vacuum system for an automotive interior vacuum forming device based on partition forming

Abstract

The utility model discloses a kind of vacuum system based on partition forming's automotive interior vacuum forming device, belong to automotive interior vacuum forming technical field, including exhaust structure, vacuum air extraction structure group, main pipeline, vacuum recovery tank, grouping air extraction forming structure, mould and air blowing structure, one end of exhaust structure is connected with vacuum air extraction structure group, the other end is used to exclude gas to outside, one end of main pipeline is connected with the one end of vacuum air extraction structure group away from exhaust structure, the other end is connected with vacuum recovery tank, one end of grouping air extraction forming structure is connected with the one end of vacuum recovery tank away from main pipeline, the other end is connected with mould, air blowing structure is also connected with mould, the utility model uses above-mentioned structure, by setting vacuum air extraction structure group, grouping air extraction forming structure and air blowing structure realize the partition control forming and the function of self-cleaning of device, reduce energy consumption simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of vacuum forming technology for automotive interiors, and in particular to a vacuum system for a vacuum forming device for automotive interiors based on partitioned forming. Background Technology

[0002] The core principle of the vacuum system originates from the vacuum forming process, which was initially used for the simple molding of general-purpose plastic parts. Its core logic is to rely on the vacuum negative pressure to create a pressure difference, causing the heated and softened material to adhere to the mold and take shape. With the development of the automotive industry, materials suitable for interior trim such as PVC and TPU are widely used. Due to its advantages of low mold cost and high production efficiency, vacuum forming has gradually replaced some of the slush molding process in the production of interior parts such as dashboards and door panels.

[0003] However, most existing technologies use an overall vacuum design, resulting in a uniform vacuum level across all areas of the mold. This can lead to problems such as excessive stretching of the skin, fading of the skin texture, or even breakage during overall adsorption. Lowering the temperature can also cause inadequate adsorption in certain areas. Utility Model Content

[0004] The purpose of this invention is to provide a vacuum system for a vacuum forming device for automotive interior trim based on partitioned molding. By setting up a vacuum extraction structure group, a grouped extraction molding structure, and an air blowing structure, the device achieves partitioned control molding and self-cleaning functions, while reducing energy consumption.

[0005] To achieve the above objectives, this utility model provides a vacuum system for a vacuum forming device for automotive interior trim based on partitioned molding, including an exhaust structure, a vacuum extraction structure group, a main pipe, a vacuum recovery tank, a grouped extraction molding structure, a mold, and a blowing structure. One end of the exhaust structure is connected to the vacuum extraction structure group, and the other end is used to exhaust gas to the outside. One end of the main pipe is connected to the end of the vacuum extraction structure group away from the exhaust structure, and the other end is connected to the vacuum recovery tank. One end of the grouped extraction molding structure is connected to the end of the vacuum recovery tank away from the main pipe, and the other end is connected to the mold. The blowing structure is also connected to the mold.

[0006] Preferably, the exhaust structure includes a noise reduction device and an exhaust pipe. One end of the noise reduction device is connected to the exhaust pipe, and the other end discharges gas to the outside. The end of the exhaust pipe away from the noise reduction device is connected to a vacuum pumping structure group, and a first connection port is provided on the exhaust pipe.

[0007] Preferably, the vacuum pumping structure assembly includes a first pump group and a second pump group. One end of the first pump is connected to the exhaust pipe and the other end is connected to the main pipe. One end of the second pump group is also connected to the exhaust pipe through the first connection port, and the other end is connected to the main pipe.

[0008] Preferably, the first pump group includes a first air inlet pipe, a first exhaust pipe, and a first vacuum pump group. One end of the first exhaust pipe is connected to an exhaust pipe, and the other end is connected to the first vacuum pump group. The end of the first vacuum pump group away from the first exhaust pipe is connected to one end of the first air inlet pipe. The other end of the first air inlet pipe is connected to the main pipe. A first valve is provided on the first air inlet pipe, and a pressure sensor is provided on the first exhaust pipe.

[0009] Preferably, the second pump unit includes a second air inlet pipe, a second exhaust pipe, and a second vacuum pump unit. One end of the second exhaust pipe is connected to the exhaust pipe through a first connection port, and the other end is connected to the second vacuum pump unit. One end of the second air inlet pipe is connected to the end of the second vacuum pump unit away from the second exhaust pipe, and the other end is connected to the main pipe. A second valve is provided on the second air inlet pipe, and a pressure sensor is also provided on the second exhaust pipe.

[0010] Preferably, a second connection port is provided on the main pipeline, and the main pipeline is connected to the second air inlet pipe through the second connection port. The end of the main pipeline away from the second air inlet pipe is connected to the vacuum recovery tank. A pressure sensor is provided on the main pipeline and inside the vacuum recovery tank.

[0011] Preferably, the grouped vacuum forming structure includes a connecting pipe, a diversion valve, and several partitioned forming units. One end of the connecting pipe is connected to a vacuum recovery tank, and the other end is connected to the diversion valve. One end of each of the several partitioned forming units is connected to the diversion valve, and the other end is connected to the mold.

[0012] Preferably, the partitioned molding unit includes a partitioned pipe and a vacuum sensor. One end of the partitioned pipe is connected to a flow divider valve, and the other end is connected to a mold. The vacuum sensor is installed on the partitioned pipe, and a throttle valve is also installed on the partitioned pipe near the flow divider valve.

[0013] Preferably, the air blowing structure includes an air blowing pipe, an air suction pipe, and an air extraction pump. One end of the air suction pipe is connected to the air extraction pump, and the other end is used to draw in outside air. One end of the air blowing pipe is connected to the end of the air extraction pump away from the air suction pipe, and the other end is connected to the mold.

[0014] Therefore, the present invention provides a vacuum system for a vacuum forming device for automotive interior trim based on partitioned molding, which achieves partitioned molding control and self-cleaning functions by setting up a vacuum extraction structure group, a group extraction molding structure and an air blowing structure, while reducing energy consumption.

[0015] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0016] Figure 1This is an overall system diagram of a vacuum system for a vacuum forming device for automotive interior trim based on partitioned molding, according to this utility model. Figure 2 This is a system diagram of the vacuum pumping structure of a vacuum system for a vacuum forming device for automotive interior parts based on partitioned molding, according to this utility model. Figure 3 This is a diagram of a grouped vacuum forming structure for a vacuum forming device for automotive interior parts based on partitioned forming, according to this utility model. Figure Labels 1. Exhaust structure; 11. Noise reduction device; 12. Exhaust pipe; 121. First connection port; 2. Vacuum pumping structure group; 21. First pump group; 211. First air inlet pipe; 212. First exhaust pipe; 213. First vacuum pump group; 214. First valve; 22. Second pump group; 221. Second air inlet pipe; 222. Second exhaust pipe; 223. Second vacuum pump group; 224. Second valve; 3. Main pipe; 31. Second connection port; 4. Vacuum recovery tank; 5. Grouped pumping and forming structure; 51. Connecting pipe; 52. Diverter valve; 53. Zoned forming unit; 531. Zoned pipe; 532. Vacuum sensor; 533. Throttling valve; 6. Mold; 7. Air blowing structure; 71. Air blowing pipe; 72. Air suction pipe; 73. Pump; 8. Pressure sensor. Detailed Implementation

[0017] Example To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0019] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0020] In the description of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. 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, they should not be construed as limitations on this utility model.

[0021] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of 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.

[0022] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0023] like Figures 1-3 As shown, this utility model discloses a vacuum system for a vacuum forming device for automotive interior trim based on partitioned molding. The system includes an exhaust structure 1, a vacuum extraction structure group 2, a main pipe 3, a vacuum recovery tank 4, a grouped extraction molding structure 5, a mold 6, and an air blowing structure 7. One end of the exhaust structure 1 is connected to the vacuum extraction structure group 2, and the other end is used to exhaust gas to the outside. One end of the main pipe 3 is connected to the end of the vacuum extraction structure group 2 away from the exhaust structure 1, and the other end is connected to the vacuum recovery tank 4. One end of the grouped extraction molding structure 5 is connected to the end of the vacuum recovery tank 4 away from the main pipe 3, and the other end is connected to the mold 6. The air blowing structure 7 is also connected to the mold 6.

[0024] The exhaust structure 1 includes a noise reduction device 11 and an exhaust pipe 12. One end of the noise reduction device 11 is connected to the exhaust pipe 12 to reduce noise pollution generated when the system is working and exhausting gas. The other end of the device 11 discharges gas to the outside. The end of the exhaust pipe 12 away from the noise reduction device 11 is connected to the vacuum pumping structure group 2. A first connection port 121 is provided on the exhaust pipe 12.

[0025] The vacuum pumping structure group 2 includes a first pump group 21 and a second pump group 22. One end of the first pump is connected to the exhaust pipe 12 and the other end is connected to the main pipe 3. One end of the second pump group 22 is also connected to the exhaust pipe 12 through the first connection port 121, and the other end is connected to the main pipe 3.

[0026] The first pump group 21 includes a first air inlet pipe 211, a first exhaust pipe 212 and a first vacuum pump group 213. One end of the first exhaust pipe 212 is connected to the exhaust pipe 12 and the other end is connected to the first vacuum pump group 213. The end of the first vacuum pump group 213 away from the first exhaust pipe 212 is connected to one end of the first air inlet pipe 211. The other end of the first air inlet pipe 211 is connected to the main pipe 3. A first valve 214 is provided on the first air inlet pipe 211 and a pressure sensor 8 is provided on the first exhaust pipe 212.

[0027] The second pump group 22 includes a second air inlet pipe 221, a second exhaust pipe 222, and a second vacuum pump group 223. One end of the second exhaust pipe 222 is connected to the exhaust pipe 12 through the first connection port 121, and the other end is connected to the second vacuum pump group 223. One end of the second air inlet pipe 221 is connected to the end of the second vacuum pump group 223 away from the second exhaust pipe 222, and the other end is connected to the main pipe 3. A second valve 224 is provided on the second air inlet pipe 221, and a pressure sensor 8 is also provided on the second exhaust pipe 222.

[0028] The main pipe 3 is provided with a second connection port 31. The main pipe 3 is connected to the second air inlet pipe 221 through the second connection port 31. The end of the main pipe 3 away from the second air inlet pipe 221 is connected to the vacuum recovery tank 4. A pressure sensor 8 is provided on the main pipe 3 and inside the vacuum recovery tank 4.

[0029] The grouped vacuum forming structure 5 includes a connecting pipe 51, a diversion valve 52, and several partitioned forming units 53. One end of the connecting pipe 51 is connected to the vacuum recovery tank 4, and the other end is connected to the diversion valve 52. One end of each of the several partitioned forming units 53 is connected to the diversion valve 52, and the other end is connected to the mold 6.

[0030] The partition molding unit 53 includes a partition pipe 531 and a vacuum sensor 532. One end of the partition pipe 531 is connected to the diversion valve 52, and the other end is connected to the mold 6. The vacuum sensor 532 is installed on the partition pipe 531. A throttle valve 533 is also installed on the partition pipe 531 near the diversion valve 52.

[0031] The air blowing structure 7 includes an air blowing pipe 71, an air suction pipe 72, and an air pump 73. One end of the air suction pipe 72 is connected to the air pump 73, and the other end is used to draw in outside air. One end of the air blowing pipe 71 is connected to the end of the air pump 73 away from the air suction pipe 72, and the other end is connected to the mold 6.

[0032] During operation, the mold 6 is fixed on the partitioned molding unit 53 and connected to the air blowing structure 7. At the same time, the throttle valve 533 is adjusted according to the molding requirements of different areas, and the vacuum extraction structure group 2 is activated to extract air from the vacuum recovery tank 4. The pressure sensor 8 in the vacuum recovery tank 4 monitors the pressure in the vacuum recovery tank 4 in real time. After the pressure reaches the standard, the diversion valve 52 is opened to start the differentiated adsorption according to the area. After the adsorption is completed, the air blowing structure 7 is activated to blow air in the reverse direction into the system to clean the air passage. After the cleaning is completed, the demolding begins, and the vacuum adsorption is completed.

[0033] During system operation, the pressure sensors 8 in the first pump group 21 and the second pump group 22 monitor the gas pressure in real time. When a fault occurs, the corresponding valve is closed and an alarm is issued, reminding the staff to inspect the corresponding pump group after completing the work. The pressure sensor 8 installed on the main pipeline 3 will also detect the working status of the system at any time. When the system is abnormal, an alarm is issued and the system is forcibly stopped. The vacuum sensor 532 detects the vacuum status of the corresponding zone in real time.

[0034] Therefore, the present invention provides a vacuum system for a vacuum forming device for automotive interior trim based on partitioned molding, which achieves partitioned molding control and self-cleaning functions by setting up a vacuum extraction structure group, a group extraction molding structure and an air blowing structure, while reducing energy consumption.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solution of this utility model, and these modifications or equivalent substitutions cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of this utility model.

Claims

1. A vacuum system for a vacuum forming apparatus for automotive interior trim based on partitioned molding, characterized in that: It includes an exhaust structure, a vacuum pumping structure group, a main pipe, a vacuum recovery tank, a grouped pumping and forming structure, a mold, and a blowing structure. One end of the exhaust structure is connected to the vacuum pumping structure group, and the other end is used to exhaust gas to the outside. One end of the main pipe is connected to the end of the vacuum pumping structure group away from the exhaust structure, and the other end is connected to the vacuum recovery tank. One end of the grouped pumping and forming structure is connected to the end of the vacuum recovery tank away from the main pipe, and the other end is connected to the mold. The blowing structure is also connected to the mold.

2. The vacuum system for a vacuum forming apparatus for automotive interior trim based on partitioned molding according to claim 1, characterized in that: The exhaust structure includes a noise reduction device and an exhaust pipe. One end of the noise reduction device is connected to the exhaust pipe, and the other end discharges gas to the outside. The end of the exhaust pipe away from the noise reduction device is connected to the vacuum pumping structure group. A first connection port is provided on the exhaust pipe.

3. The vacuum system for a vacuum forming apparatus for automotive interior trim based on partitioned molding according to claim 2, characterized in that: The vacuum pumping structure includes a first pump group and a second pump group. One end of the first pump is connected to the exhaust pipe and the other end is connected to the main pipe. One end of the second pump group is also connected to the exhaust pipe through the first connection port, and the other end is connected to the main pipe.

4. The vacuum system for a vacuum forming apparatus for automotive interior trim based on partitioned molding according to claim 3, characterized in that: The first pump unit includes a first intake pipe, a first exhaust pipe, and a first vacuum pump unit. One end of the first exhaust pipe is connected to an exhaust pipe, and the other end is connected to the first vacuum pump unit. The end of the first vacuum pump unit away from the first exhaust pipe is connected to one end of the first intake pipe. The other end of the first intake pipe is connected to the main pipe. A first valve is installed on the first intake pipe, and a pressure sensor is installed on the first exhaust pipe.

5. The vacuum system for a vacuum forming apparatus for automotive interior trim based on partitioned molding according to claim 4, characterized in that: The second pump unit includes a second air inlet pipe, a second exhaust pipe, and a second vacuum pump unit. One end of the second exhaust pipe is connected to the exhaust pipe through a first connection port, and the other end is connected to the second vacuum pump unit. One end of the second air inlet pipe is connected to the end of the second vacuum pump unit away from the second exhaust pipe, and the other end is connected to the main pipe. A second valve is installed on the second air inlet pipe, and a pressure sensor is also installed on the second exhaust pipe.

6. The vacuum system for a vacuum forming apparatus for automotive interior trim based on partitioned molding according to claim 5, characterized in that: The main pipeline is equipped with a second connection port, through which the main pipeline is connected to the second air inlet pipe. The end of the main pipeline away from the second air inlet pipe is connected to the vacuum recovery tank. A pressure sensor is installed on both the main pipeline and inside the vacuum recovery tank.

7. The vacuum system for a vacuum forming apparatus for automotive interior trim based on partitioned molding according to claim 6, characterized in that: The grouped vacuum forming structure includes connecting pipes, diversion valves, and several partitioned forming units. One end of the connecting pipe is connected to the vacuum recovery tank, and the other end is connected to the diversion valve. One end of each of the several partitioned forming units is connected to the diversion valve, and the other end is connected to the mold.

8. The vacuum system for a vacuum forming apparatus for automotive interior trim based on partitioned molding according to claim 7, characterized in that: The partition molding unit includes partition pipes and a vacuum sensor. One end of the partition pipe is connected to a flow divider valve, and the other end is connected to the mold. The vacuum sensor is installed on the partition pipe, and a throttle valve is also installed on the partition pipe near the flow divider valve.

9. The vacuum system for a vacuum forming apparatus for automotive interior trim based on partitioned molding according to claim 8, characterized in that: The air blowing structure includes an air blowing pipe, an air suction pipe, and an air extraction pump. One end of the air suction pipe is connected to the air extraction pump, and the other end is used to draw in outside air. One end of the air blowing pipe is connected to the end of the air extraction pump away from the air suction pipe, and the other end is connected to the mold.

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