Equipment for partitioned energy-saving cooling of hub cold air area

Abstract

Equipment for partitioned energy-saving cooling of a hub cold air area comprises a baking furnace, a rotary conveying chain, a stripping machine and a totally-closed tunnel cold air area, and hubs are conveyed out of the baking furnace and conveyed to the stripping machine through the conveying chain; the stripped hub is conveyed into a totally-closed tunnel cold air area by a high-temperature-resistant conveyor to be cooled, the totally-closed tunnel cold air area forms a sealed channel and is divided into a high-temperature cold air area and a low-temperature cold air area, and an inlet and an outlet are a high-temperature air outlet and a low-temperature air outlet respectively; a hub is fed into the high-temperature area cold air area for cooling through the high-temperature area exhaust outlet, then enters the low-temperature area cold air area for cooling through the natural air supply outlet arranged for the high-temperature area cold air area and the air conditioner cooling air supply outlet arranged for the low-temperature area cold air area, and is discharged through the low-temperature area exhaust outlet. Therefore, the problems of low overall cooling efficiency and high energy consumption of the cold air area can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile wheel hub manufacturing, in particular to a device for energy-saving cooling with partitioned cold air in the wheel hub cold air area. Background Technique

[0002] The wheel hub is an important load-bearing and appearance component of an automobile. The surface of the wheel hub needs to be painted and colored to ensure the aesthetic degree and corrosion resistance of the wheel hub. During the manufacturing process of wheel hub painting, after spraying paint or powder, baking and curing the coating are required. After baking, the temperature of the wheel hub is relatively high (about 180°C) and it cannot be directly transferred to the next process unit for processing or storage. Cooling and temperature reduction (about 40°C) must be carried out, and the cold air area is one of the key steps.

[0003] The traditional form of the cold air area is mostly top air supply cooling in the isolation room or semi-closed tunnel cooling, which has problems such as air leakage and pressure relief, and the cooling and temperature reduction efficiency of the wheel hub is low; the traditional cold air area is an integral one-section air duct, the conveying distance of the cooling air is long, and the pressure loss at the bend is easy to cause speed loss. To ensure the overall air speed in the cold air area, the energy consumption of the air supply fan is relatively high; the traditional cold air area and the baking furnace share a conveying chain to transport the wheel hub. The high-temperature baking conveying chain and the wheel hub enter the cold air area for cooling together, which results in the problem that the conveying chain increases the cooling load of the cold air area and wastes cold air. Thus, the cooling efficiency of the traditional cold air area is low and the energy consumption is high.

[0004] For example Figure 1 As shown, the sequence of the traditional cold air area process layout is: baking furnace, cold air area, unloader, blanking transfer. The wheel hub is transported through the baking furnace, cold air area, and unloader by a conveying chain. In this process layout, the cold air area needs to cool and reduce the temperature of both the wheel hub and the conveying chain. There are many heat sources and large loads in the cold air area. Especially as Figure 2 shown, there is air leakage and pressure relief in the gaps in the cold air area, which will cause loss of air volume and air speed. Again, as Figure 3 shown, the high-temperature wheel hub is transported from the baking furnace 7 via the conveying chain 8, sent into the cold air area 17 through the air outlet 16 of the cold air area, and then sent out to the unloader 9 through the air supply outlet 13 of the air conditioner cooling air.

[0005] Therefore, how to find an efficient and energy-saving cooling process equipment has become a technical problem in the industry. Content of the Utility Model

[0006] To solve the above problems, the purpose of the utility model is to provide a device for energy-saving cooling with partitioned cold air in the wheel hub cold air area to solve the problems of low overall cooling efficiency and high energy consumption in the cold air area.

[0007] According to the present utility model, there is provided an equipment for energy-saving cooling with partitioned cold air for a wheel hub, including: a rotary conveyor chain for transporting the wheel hub of a baking furnace, a blanking machine, and a fully enclosed tunnel cold air area. Among them, the conveyor chain is used to transport the wheel hub transported out of the baking furnace to the blanking machine for blanking. The wheel hub is separated from the conveyor chain, and the vacant part of the conveyor chain will continue to rotate back to the baking furnace for cyclic transportation of the wheel hub. Among them, the blanking machine is arranged behind the baking furnace and in front of the fully enclosed tunnel cold air area to separate the high-temperature wheel hub from the baking furnace and the conveyor chain. The blanked wheel hub is sent to the fully enclosed tunnel cold air area for cooling by a high-temperature resistant conveyor. The high-temperature resistant conveyor is separately arranged separately from the upstream conveyor chain. Among them, the fully enclosed tunnel type cold air area is configured as a sealed channel, and this channel is divided into a high-temperature area cold air area and a low-temperature area cold air area. The inlet and outlet of this channel are respectively the high-temperature area air discharge port and the low-temperature area air discharge port. Among them, the wheel hub is sent into the high-temperature area cold air area for cooling through the high-temperature area air discharge port, and then passes through the natural air supply port set for the high-temperature area cold air area and the air-conditioning cooling air supply port set for the low-temperature area cold air area, enters the low-temperature area cold air area for cooling, and then is sent out through the low-temperature area air discharge port.

[0008] Preferably, the equipment for energy-saving cooling with partitioned cold air for the wheel hub further includes a logistics roller path. The wheel hub sent out from the low-temperature area air discharge port by the high-temperature resistant conveyor is transported through the logistics roller path and transferred to the next process unit for processing or storage.

[0009] Preferably, the high-temperature resistant conveyor is a high-temperature resistant conveyor belt or another conveyor chain.

[0010] Preferably, the high-temperature resistant conveyor includes at least two parts separately arranged corresponding to the high-temperature area cold air area and the low-temperature area cold air area respectively.

[0011] Preferably, the fully enclosed tunnel type cold air area includes: a high-temperature resistant conveyor, an air duct plate, a sealing plate, and a conveyor frame. Among them, the air duct plate and the sealing plate are connected and fixed to the conveyor frame to form a sealed channel.

[0012] Preferably, the fully enclosed tunnel type cold air area further includes a conveyor motor for driving the high-temperature resistant conveyor. The air duct plate and the sealing plate are fixed to the conveyor frame by bolts, and air is respectively sent into the high-temperature area cold air area and the low-temperature area cold air area inside the channel through a blower and an air conditioner.

[0013] Preferably, the natural air supply port and the air-conditioning cooling air supply port are respectively arranged in the adjacent area of the high-temperature area cold air area and the low-temperature area cold air area.

[0014] The beneficial effect of the present utility model is that by adopting the fully enclosed tunnel type cold air area of the present utility model, the air leakage and pressure relief of the traditional cold air area through gaps are avoided, and the loss of air volume and air speed is reduced.

[0015] By adopting the fully enclosed tunnel-type cold air zone of the present utility model, the blanking machine is arranged in front of the fully enclosed tunnel behind the baking furnace, separating the high-temperature hubs from the baking furnace and the conveying chain. The high-temperature hubs enter the conveying belt in the cold air zone through the blanking machine, avoiding the high-temperature conveying chain passing through the baking furnace from entering the cold air zone. Then, the high-temperature hubs are cooled separately, reducing the load on the cold air zone and minimizing cold air waste.

[0016] By adopting the fully enclosed tunnel-type cold air zone of the present utility model, air is supplied from the middle of the cold air zone, and the inlets and outlets at both ends of the cold air zone are exhaust vents. The cold air zone is divided from the overall one-piece type into a two-piece type. The air supply distance and the path bend of the two cold air zones are reduced by half compared with the traditional cold air zone. That is, a relatively higher wind speed can be achieved by a fan with a relatively lower power, and the energy consumption required is smaller on the premise of ensuring the cooling effect.

[0017] By adopting the fully enclosed tunnel-type cold air zone of the present utility model, it is not only divided into two-piece type partitions in terms of mechanical layout, but also divided into a high-temperature zone and a low-temperature zone in terms of temperature properties. Since the hubs just come out of the baking furnace in the high-temperature zone and the hub temperature is relatively high, outdoor natural wind can meet the temperature difference between the hubs and the cooling air, ensuring the cooling efficiency and effect; in the low-temperature zone, low-temperature air cooled by air conditioners is used to achieve the temperature difference between the hubs and the cooling air after being cooled in the high-temperature zone, ensuring the cooling efficiency and effect; the refrigeration air volume of the fully enclosed tunnel-type cold air zone is reduced by half compared with the traditional cold air zone, and the energy consumption is greatly reduced.

[0018] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the schematic diagram of the traditional cold air zone;

[0020] Figure 2 is the structural diagram of the traditional cold air zone;

[0021] Figure 3 is the layout diagram of the traditional cold air zone;

[0022] Figure 4 is the structural diagram of the fully enclosed tunnel-type cold air zone of the present utility model;

[0023] Figure 5 is the schematic diagram of the fully enclosed tunnel-type cold air zone of the present utility model;

[0024] Figure 6 is the layout of the fully enclosed tunnel-type cold air zone of the present utility model;

[0025] Figure 7 is the wind speed fluid simulation diagram of the fully enclosed tunnel-type cold air zone of the present utility model.

[0026] Figure 8 Schematically show the transfer principle diagram of the conveying chain and the blanking machine. Specific embodiments

[0027] The exemplary embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The exemplary embodiments described below and shown in the drawings are intended to teach the principles of the present invention so that those skilled in the art can implement and use the present invention in several different environments and for several different applications. Therefore, the protection scope of the present invention is defined by the appended claims, and the exemplary embodiments are not intended to, and should not be considered as, a restrictive description of the protection scope of the present invention. Moreover, for ease of description, the dimensions of the various parts shown in the drawings are not necessarily drawn according to the actual proportional relationship. The same reference numerals in the figures represent the same or similar parts, and thus the repeated description thereof will be omitted. Regarding the orientation description, such as the upstream and downstream of the conveying direction, the inside, outside, up, down, left, right, top, bottom, etc. indicating the orientation or positional relationship are all based on the orientation or positional relationship shown in the drawings, 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, and thus cannot be understood as a limitation to the present invention. Unless otherwise specifically stated, the order of the components and assembly steps and the numerical values set forth in the embodiments do not limit the scope of the present invention. Moreover, any numerical range stated herein is intended to include all sub-ranges subsumed therein. The numerical range represented by "numerical value A to numerical value B" means a range including the endpoint numerical values A and B. Those skilled in the art can understand that the terms such as "S1", "second", "step", etc. in the present invention are only used to distinguish different steps, devices or modules, etc., and neither represent any specific technical meaning nor indicate the inevitable logical order between them. For example, step two and step three can be swapped or run in parallel.

[0028] As Figures 4 to 6 shown, a device for energy-saving cooling of a hub cold air zone with zoning according to the present invention adopts a fully enclosed tunnel design, avoiding air leakage and pressure relief at the gap between the traditional cold air zone and the conveying chain as shown in Figures 1 to 3 , and reducing the loss of air volume and air speed.

[0029] As Figure 4 shown, the fully enclosed tunnel-type cold air zone mainly consists of: a high-temperature resistant conveying belt 1, an air duct plate 2, a sealing plate 3, a conveying frame 4, and a conveying motor 5. The air duct plate 2 and the sealing plate 3 are fixed to the conveying frame 4 by bolts, and a sealed channel is formed after connection and fixation. Air is conveyed into the interior through an air conditioner and a fan. The conveying motor 5 serves as a power source to provide the running power for the high-temperature resistant conveying belt 1, and the high-temperature resistant conveying belt 1 transports the hub to run in the fully enclosed tunnel-type cold air zone. Thus, compared with the traditional cold air zone structure (seeFigure 2 ) More sealed.

[0030] As Figure 5 shown, according to the present utility model, the sequence of the process layout of the fully enclosed tunnel-type cold air zone is: baking furnace, blanking machine, fully enclosed tunnel-type cold air zone (including high-temperature zone cold air zone, low-temperature zone cold air zone), blanking transfer. By arranging the blanking machine between the baking furnace and the fully enclosed tunnel-type cold air zone, the hub is detached from the baking furnace and the conveying chain in advance, and the high-temperature hub is transferred to the conveying belt (corresponding to Figure 4 the high-temperature resistant conveying belt 1) through the blanking machine, avoiding the conveying chain passing through the baking furnace from entering the fully enclosed tunnel-type cold air zone, and then cooling the hub separately, reducing the heat source in this cold air zone, reducing the load of this cold air zone, and reducing the waste of cold air.

[0031] More specifically, as Figure 6 shown, the high-temperature hub is conveyed from the baking furnace 7 to the blanking machine 9 via the conveying chain 8, and after blanking, it is transferred to the high-temperature zone cold air zone 11 through the high-temperature resistant conveying belt 1 via the high-temperature zone air outlet 10, and then passes through, for example, the natural air supply outlet 12 provided for the high-temperature zone cold air zone 11 and the air-conditioning cooling air supply outlet 13 provided for the low-temperature zone cold air zone 14 in the adjacent area between the high-temperature zone cold air zone 11 and the low-temperature zone cold air zone 14, enters the low-temperature zone cold air zone 14, and then is sent out via the low-temperature zone air outlet 15.

[0032] This process method adopts the air supply design from the middle of the fully enclosed tunnel-type cold air zone, sets the two ends of the fully enclosed tunnel-type cold air zone as air outlets, and divides the fully enclosed tunnel-type cold air zone from the overall one-section type into two-section types of high-temperature zone cold air zone 11 and low-temperature zone cold air zone 14, which can reduce the air supply distance and the path bend. Compared with the traditional cold air zone layout (see Figure 3 ), it is reduced by half, that is, a relatively higher wind speed can be achieved through a fan with a relatively smaller power, and the energy consumption required on the basis of ensuring the cooling effect is smaller.

[0033] This process method adopts the high-low temperature zoning design of the high-temperature zone cold air zone 11 and the low-temperature zone cold air zone 14. Since the hub just comes out of the baking furnace 7 in the high-temperature zone cold air zone 11 and the hub temperature is relatively high, the outdoor natural wind can meet the temperature difference between the hub and the cooling air, ensuring the cooling efficiency and effect; the low-temperature zone cold air zone 14 adopts the low-temperature air cooled by air-conditioning to realize the temperature difference between the hub and the cooling air after being cooled by the high-temperature zone cold air zone 11, ensuring the cooling efficiency and effect, and saving about half of the cooling energy consumption of the air volume through zoning.

[0034] Further, the conveying method of the hub in the cold air zone is changed from a conveying chain to a high-temperature resistant conveying belt 1, so that the hub is separated from the conveying chain after baking, preventing the high-temperature conveying chain from entering the cold air zone, reducing the load in the cold air zone. The cold air zone only needs to cool down the high-temperature hub, improving the heat exchange efficiency of the air in the air duct and reducing the waste of cold energy.

[0035] Although the high-temperature resistant conveying belt 1 is exemplified here as the high-temperature resistant conveyor, it is not limited to this. Another conveying chain can also be selected as the high-temperature resistant conveyor, as long as it is separately arranged from the upstream high-temperature conveying chain. Corresponding to the two air zones, the high-temperature resistant conveyor can be divided into two or more separately conveyed parts that can be connected to each other.

[0036] Correspondingly, the implementation process of a device for energy-saving cooling of a hub cold air zone by zoning may include the following steps.

[0037] S1. After the hub is transported out of the baking furnace 7 by the conveying chain 8, it is discharged through the unloader 9, and the hub is separated from the conveying chain 8 and enters the high-temperature resistant conveying belt 1.

[0038] S2. The hub enters the high-temperature zone cold air zone 11 in the fully enclosed cold air zone tunnel through the high-temperature resistant conveying belt 1 for cooling and temperature reduction.

[0039] S3. After the hub is cooled down in the high-temperature zone cold air zone 11, it continues to be transported through the high-temperature resistant conveying belt 1 and enters the low-temperature zone cold air zone 14 for secondary cooling and temperature reduction;

[0040] S4. The hub after being cooled by cold air is transported through the logistics roller path and transferred to the next process unit for processing or storage.

[0041] As Figure 7 shown, a fluid simulation of the wind speed in the fully enclosed tunnel cold air zone is carried out. Air is supplied from the middle of the tunnel to both ends of the tunnel, and a wind speed streamline diagram of the fluid in the tunnel is obtained. Different colors in the figure represent the wind speed magnitude. It can be seen that there is no obvious color change throughout the tunnel, further proving that the fully enclosed tunnel cold air zone can effectively reduce the loss of air volume and wind speed.

[0042] As Figure 8 shown, the conveying chain 8 is a rotary conveyor. While transporting the hub out of the baking furnace 7 and transferring it to the unloader 9, the empty part of the conveying chain 8 will continue to rotate back to the baking furnace 7 for cyclic conveying. The unloader 9 uses a high-temperature resistant belt, which can convey the high-temperature hub coming out of the baking furnace 7 to the downstream high-temperature resistant conveyor and then send it into the fully enclosed tunnel cold air zone for temperature reduction.

[0043] According to the present utility model, by blowing air into the entire tunnel, not only the front of the workpiece, but also the cold air will pass through the entire workpiece, which can effectively improve the cooling efficiency. Compared with the cold air area of the existing hub painting line, by changing the cold air area tunnel from the chain to the roller path, on the one hand, the cross-sectional area of the cold air tunnel can be reduced, and the wind speed can be effectively increased under the same air volume. On the other hand, it can make the cold air tunnel fully enclosed. In the existing technology, since the cold air area runs on the chain, if the tunnel includes the chain fixture, the cross-sectional area of the entire tunnel will be very large, and the wind speed of the tunnel will become smaller; if the chain fixture is not included, the tunnel cannot be completely enclosed (there will be a profiling opening at the position where the chain fixture passes). Different from this, the form of the cold air area according to the present utility model is to blow the air into the fully enclosed tunnel, and the air in the tunnel passes through the workpiece to take away the heat.

[0044] In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically defined. Unless otherwise clearly specified and limited, terms such as "installed", "connected", "connected", "fixed" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances. Although the present utility model has been described with reference to various specific embodiments, it should be understood that modifications can be made within the spirit and scope of the described inventive concept. Therefore, it is intended that the present utility model is not limited to the described embodiments, but will have the full scope defined by the language of the appended claims.

Claims

1. An equipment for energy-saving cooling with partitioned cold air in a wheel hub, characterized in that, Including: A rotary conveyor chain (8), a blanking machine (9), and a fully enclosed tunnel cold air zone for transporting the hubs of a baking furnace (7). Among them, the conveyor chain (8) is used to transport the hubs transported out of the baking furnace (7) to the blanking machine (9) for blanking. The hubs are separated from the conveyor chain (8), and the empty part of the conveyor chain (8) will continue to rotate back to the baking furnace (7) for the cyclic transportation of the hubs. Among them, the blanking machine (9) is arranged behind the baking furnace (7) and in front of the fully enclosed tunnel cold air zone, separating the high-temperature hubs from the baking furnace (7) and the conveyor chain (8); the blanked hubs are transferred to the fully enclosed tunnel cold air zone for cooling by a high-temperature resistant conveyor. The high-temperature resistant conveyor is separately arranged from the upstream conveyor chain (8). Among them, the fully enclosed tunnel cold air zone is configured as a sealed passage, which is divided into a high-temperature zone cold air zone (11) and a low-temperature zone cold air zone (14). The inlet and outlet of this passage are respectively the high-temperature zone air outlet (10) and the low-temperature zone air outlet (15). Among them, the hubs are sent into the high-temperature zone cold air zone (11) through the high-temperature zone air outlet (10) for cooling, and then pass through the natural air supply opening (12) provided for the high-temperature zone cold air zone (11) and the air-conditioning cooling air supply opening (13) provided for the low-temperature zone cold air zone (14), enter the low-temperature zone cold air zone (14) for cooling, and then are sent out through the low-temperature zone air outlet (15).

2. The device for energy-saving cooling with partitioned cold air for a wheel hub according to claim 1, wherein, It also includes a logistics roller path. The hubs sent out from the low-temperature zone air outlet (15) by the high-temperature resistant conveyor are transported through the logistics roller path and transferred to the next process unit for processing or storage.

3. The device for energy-saving cooling with partitioned cold air for a wheel hub according to claim 1, wherein, The high-temperature resistant conveyor is a high-temperature resistant conveyor belt (1) or another conveyor chain.

4. The device for energy-saving cooling with partitioned cold air for a wheel hub according to claim 1, wherein, The high-temperature resistant conveyor includes at least two parts separately arranged corresponding to the high-temperature zone cold air zone (11) and the low-temperature zone cold air zone (14) respectively.

5. The device for energy-saving cooling with partitioned cold air for a wheel hub according to claim 1, characterized in that, The fully enclosed tunnel cold air zone includes: a high-temperature resistant conveyor, a duct plate (2), a sealing plate (3), and a conveying frame (4). Among them, the duct plate (2) and the sealing plate (3) are connected and fixed to the conveying frame (4) to form a sealed passage.

6. The device for energy-saving cooling with partitioned cold air for a hub, as claimed in claim 5, wherein The fully enclosed tunnel cold air zone also includes a conveying motor (5) for driving the high-temperature resistant conveyor. The duct plate (2) and the sealing plate (3) are fixed to the conveying frame (4) by bolts, and air is supplied to the high-temperature zone cold air zone (11) and the low-temperature zone cold air zone (14) inside the passage through a fan and an air conditioner respectively.

7. The device for energy-saving cooling with partitioned cold air for a wheel hub according to claim 1, characterized in that The natural air supply opening (12) and the air-conditioning cooling air supply opening (13) are respectively arranged in the adjacent area of the high-temperature zone cold air zone (11) and the low-temperature zone cold air zone (14).

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