Belt conveyor with dual active heat dissipation function

Abstract

The utility model relates to the technical field of belt conveyors, and discloses a belt conveyor with a dual active heat dissipation function, which comprises a belt conveyor used for transporting extruded products, and a water cooling mechanism, an air cooling mechanism and a wiping mechanism are arranged above the belt conveyor at intervals along the conveying direction. Wherein the water cooling mechanism is located at the feeding end of the belt conveyor, and the wiping mechanism is located at the discharging end of the belt conveyor; compared with the prior art, due to the fact that the diameter of water mist droplets sprayed by the atomizing nozzle is extremely small, the water mist droplets can be rapidly evaporated when making contact with a just-formed extruded product with high temperature, heat on the extruded product is rapidly taken away through efficient heat exchange, and the extruded product can be rapidly cooled within a short time; in addition, the wiping roller is driven by the motor to rotate, the wiping cloth makes contact with the extruded product below and adsorbs moisture attached to the outer surface of the extruded product, and the moisture attached to the outer surface of the extruded product is prevented from affecting the next procedure.

Description

Technical Field

[0001] This utility model belongs to the technical field of belt conveyors, specifically relating to a belt conveyor with dual active heat dissipation function. Background Technology

[0002] In the plastic production process, the extruder heats and melts the raw materials and extrudes them into shape. The extruded plastic strips are then transported to the next process via a belt conveyor. The initially formed plastic strips usually have a high temperature, so they must be cooled during the transport process to accelerate their hardening and further shaping, which will facilitate subsequent processing.

[0003] In existing technologies, a combination of air cooling and water cooling is commonly used to cool plastic strips. Water cooling involves placing a water tank at the feed end of the conveyor belt. As the plastic strip passes through the water tank during transport, the high specific heat capacity and thermal conductivity of water rapidly absorb heat from the plastic strip, thus lowering its temperature. Air cooling involves installing fans on the conveyor belt to accelerate airflow, carrying away heat through heat conduction and convection, which also cools the plastic strip. However, this approach presents the following technical problems: after passing through the water tank, a significant amount of moisture often adheres to the surface of the plastic strip. This large area of ​​moisture is difficult to evaporate quickly, which can affect subsequent processes (such as cutting). Summary of the Invention

[0004] In view of this, the purpose of this utility model is to provide a belt conveyor with dual active heat dissipation function to solve the technical problem in the prior art that the use of water tanks for water cooling causes a lot of moisture to adhere to the surface of the plastic strip, which in turn affects the next process.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A belt conveyor with dual active cooling function includes a belt conveyor for transporting extruded products. A water-cooling mechanism, an air-cooling mechanism, and a wiping mechanism are spaced apart above the belt conveyor along the conveying direction. The water-cooling mechanism is located at the feeding end of the belt conveyor, and the wiping mechanism is located at the unloading end of the belt conveyor. The belt conveyor includes a conveyor belt. The water-cooling mechanism includes support plates on both sides of the conveyor belt, facing each other. A spray pipe is installed between the two support plates, connected to a water pump. Multiple atomizing nozzles are connected along the length of the spray pipe, with the spray direction of the atomizing nozzles facing the falling direction of the extruded products. The wiping mechanism includes fixed plates on both sides of the conveyor belt, with a rotating shaft rotatably connected between the fixed plates. A motor is installed at one end of the rotating shaft, and a wiping roller is sleeved on the rotating shaft. A wiping cloth is sleeved on the wiping roller, with a gap between the wiping cloth and the conveyor belt.

[0007] Furthermore, the spray pipe has a circular cross-section, is hollow inside and open at one end to form a flow channel. The closed end of the spray pipe is fixedly connected to the surface of a support plate on one side, and the open end of the spray pipe passes through the support plate on the other side and is connected to a water pump. The inlet of the water pump is connected to a water tank.

[0008] Furthermore, the belt conveyor also includes side plates distributed on both sides of the conveyor belt. The side plates include an upper wing plate and a lower wing plate located at the upper and lower ends of the outer side. The top surface of the upper wing plate has a sliding hole. The support plate is inserted into the sliding hole and slidably connected to the upper wing plate. In the area of ​​the lower wing plate opposite to the sliding hole, multiple threaded holes are opened along the length direction of the side plate. The adjusting screw is inserted into the threaded hole from bottom to top and threadedly connected to the lower wing plate. The rod end of the adjusting screw abuts against the bottom surface of the support plate to support the support plate.

[0009] Furthermore, a gap is left between the end of the wiping roller and the fixed plate;

[0010] Furthermore, the air-cooling mechanism includes a reaction frame positioned above the conveyor belt, with multiple fans fixedly connected to the top of the reaction frame along its length, and the air outlets of the fans facing the conveyor belt.

[0011] The beneficial effects of this utility model are as follows:

[0012] (1) Compared with the prior art, the water droplets sprayed by the atomizing nozzle have extremely small diameters, which means they have a large specific surface area. When the droplets come into contact with the newly formed and high-temperature extruded product, they will evaporate quickly. Through efficient heat exchange, the heat on the extruded product will be quickly removed, allowing the extruded product to cool down rapidly in a short time, which will accelerate the further hardening and molding of the extruded product to a certain extent. In addition, the atomizing nozzle is oriented directly towards the gap between the belt conveyor and the extruder, which can effectively prevent the sprayed water mist from falling onto the conveyor belt and re-adhering to the surface of the extruded product. Furthermore, the water mist evaporates quickly and will not form a large area of ​​water adhering to the outer surface of the extruded product.

[0013] (2) The dual active heat dissipation is achieved through water cooling and air cooling mechanisms, which improves the heat dissipation effect and accelerates the hardening and molding of extruded products;

[0014] (3) The wiping roller is rotated by the motor, and the wiping cloth comes into contact with the extruded product below and absorbs the moisture attached to the outer surface of the extruded product, so as to prevent the moisture attached to the outer surface of the extruded product from affecting the next process. Attached Figure Description

[0015] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the following drawings are provided for illustration:

[0016] Figure 1This is a schematic diagram of the overall structure of the belt conveyor with dual active heat dissipation function in Embodiment 1 of this utility model;

[0017] Figure 2 This is a top view of the belt conveyor with dual active heat dissipation function in Embodiment 1 of this utility model;

[0018] Figure 3 for Figure 1 Enlarged view at point A1;

[0019] Figure 4 for Figure 1 Enlarged view at point A2;

[0020] Figure 5 for Figure 1 Enlarged view at point A3;

[0021] Figure 6 for Figure 2 Enlarged view at A4 in the middle.

[0022] The following labels are shown in the attached diagram:

[0023] Belt conveyor 1, conveyor belt 101, side plate 102, upper wing plate 103, lower wing plate 104, sliding hole 105, threaded hole 106, lifting rib 107, extruder 2, discharge port 201, water cooling mechanism 3, support plate 301, spray pipe 302, atomizing nozzle 303, water pump 304, water tank 305, adjusting screw 306, air cooling mechanism 4, reaction frame 401, fan 402, wiping mechanism 5, fixed plate 501, rotating shaft 502, wiping roller 503, motor 504. Detailed Implementation

[0024] Example 1, specifically as follows: Figures 1-6 As shown.

[0025] A belt conveyor with dual active heat dissipation function includes a belt conveyor 1 for transporting extruded products. A water cooling mechanism 3, an air cooling mechanism 4 and a wiping mechanism 5 are arranged at intervals above the belt conveyor 1 along the conveying direction. The water cooling mechanism 3 is located at the feeding end of the belt conveyor 1, and the wiping mechanism 5 is located at the unloading end of the belt conveyor 1.

[0026] like Figure 1 As shown, the belt conveyor 1 includes a conveyor belt 101 and side plates 102 distributed on both sides of the conveyor belt 101. Other components of the belt conveyor 1 are existing technologies and will not be described in detail here. The extruder 2 is located on the feeding end side of the belt conveyor 1, and the discharge port 201 of the extruder 2 is above the conveyor belt 101. The molten plastic mixture is formed by the mold at the discharge port 201 and falls onto the conveyor belt 101. The extruded product is transported by the conveyor belt 101.

[0027] like Figure 3 , Figure 4 As shown, the water-cooling mechanism 3 includes support plates 301 located on both sides of the conveyor belt 101. The two support plates 301 face each other, meaning the orientation of the plate surfaces is perpendicular to the direction of movement of the conveyor belt 101. A spray pipe 302 perpendicular to the plate surface is arranged between the two support plates 301. In this embodiment, the spray pipe 302 has a circular cross-section, is hollow inside, and has an open end to form a flow channel. The closed end of the spray pipe 302 is fixedly connected to the plate surface of one support plate 301 by welding. The open end of the spray pipe 302 passes through the other support plate 301 and is connected to a water pump 304. In this embodiment, the water pump 304 is fixedly connected to the outer plate surface of the support plate 301 by screws. The inlet of the water pump 304 is connected to a water tank 305, which is placed on the ground. The water pump 304 pumps the water in the water tank 305 into the spray pipe 302.

[0028] Multiple atomizing nozzles 303 are evenly spaced along the length of the spray pipe 302 at its bottom. The atomizing nozzles 303 are connected to the internal flow channels of the spray pipe 302, and the pressurized water is atomized and sprayed out through the atomizing nozzles 303. It is worth emphasizing that the spray direction of the atomizing nozzles 303 is towards the falling direction of the extruded product.

[0029] During use, the water droplets sprayed by the atomizing nozzle 303 have extremely small diameters, resulting in a very large specific surface area. Upon contact with the newly formed, high-temperature extruded product, the droplets evaporate rapidly, quickly carrying away heat through efficient heat exchange. This allows the extruded product to cool down rapidly in a short time, accelerating further hardening and molding to some extent. Furthermore, the atomizing nozzle 303 is oriented directly towards the gap between the belt conveyor 1 and the extruder 2, effectively preventing the sprayed water mist from falling onto the conveyor belt 101 and re-adhering to the surface of the extruded product. Moreover, the rapid evaporation of the water mist prevents the formation of large areas of moisture on the outer surface of the extruded product.

[0030] In practical use, the height and spray angle of the atomizing nozzle 303 usually need to be adjusted according to the height of the extruder 2 outlet 201. Therefore, in this embodiment, the connecting pipe between the atomizing nozzle 303 and the spray pipe 302 is a shaped flexible hose, which allows for adjustment of the spray angle and height of the atomizing nozzle 303 within a certain range.

[0031] To achieve a wider range of height adjustment for the atomizing nozzle 303, in this embodiment, the support plate 301 and the side plate 102 are slidably connected, meaning the support plate 301 can be vertically displaced relative to the side plate 102. Specifically, the side plate 102 includes an upper wing plate 103 and a lower wing plate 104 located at the upper and lower ends of its outer side. A sliding hole 105 is formed on the top surface of the upper wing plate 103, and the opening size of the sliding hole 105 is consistent with the cross-sectional size of the support plate 301. The support plate 301 is inserted into the sliding hole 105 and slidably connected to the upper wing plate 103. Multiple threaded holes 106 are evenly spaced along the length of the side plate 102 in the area opposite to the sliding hole 105 on the lower wing plate 104. An adjusting screw 306 is inserted into the threaded hole 106 from bottom to top and threadedly connected to the lower wing plate 104. The end of the adjusting screw 306 abuts against the bottom surface of the support plate 301, thereby providing support for the support plate 301.

[0032] When a wide range of height adjustment of the atomizing nozzle 303 is required, the height of the atomizing nozzle 303 can be adjusted by turning the adjusting screw 306 in or out to raise or lower the support plate 301.

[0033] The air-cooling mechanism 4 includes a reaction frame 401 positioned above the conveyor belt 101. The bottom of the reaction frame 401 is welded and fixed to the side plate 102. Multiple fans 402 are evenly fixedly connected to the top of the reaction frame 401 along its length. The air outlets of the fans 402 are directly opposite the conveyor belt 101. The fans 402 increase the airflow velocity, further accelerating the heat dissipation of the extruded product. The water-cooling mechanism 3 and the air-cooling mechanism 4 achieve dual active heat dissipation, improving the heat dissipation effect and accelerating the hardening and molding of the extruded product.

[0034] like Figure 5 , Figure 6 As shown, the wiping mechanism 5 includes fixed plates 501 located on both sides of the conveyor belt 101 and facing each other. The bottom surface of the fixed plates 501 is welded and fixed to the top surface of the side plates 102. A rotating shaft 502 is rotatably connected between the fixed plates 501. Specifically, a shaft hole perpendicular to the plate surface is opened on the plate surface of the fixed plates 501, and the rotating shaft 502 is inserted into the shaft hole with a bearing between them. A motor 504 is provided at one end of the rotating shaft 502, and the power output shaft of the motor 504 is connected to the rotating shaft 502 through a coupling. A wiping roller 503 is sleeved on the rotating shaft 502, and the rotating shaft 502 and the wiping roller 503 are fixed by a key connection. A gap is left between the end of the wiping roller 503 and the fixed plate 501. A wiping cloth is fitted on the wiping roller 503, and the two are fixedly connected by hook and loop fasteners. The wiping cloth is made of pure cotton and has good water absorption and softness. There is a gap between the wiping cloth and the conveyor belt 101, which is smaller than the height of the extruded product.

[0035] The wiping roller 503 is driven to rotate by the motor 504. The wiping cloth comes into contact with the extruded product below and absorbs the moisture adhering to the outer surface of the extruded product, preventing the moisture adhering to the outer surface of the extruded product from affecting the next process.

[0036] like Figure 1 As shown, multiple lifting ribs 107 are evenly spaced on the surface of the conveyor belt 101. The extending direction of the lifting ribs 107 is consistent with the width direction of the conveyor belt 101, and the lifting ribs 107 are integrally formed with the conveyor belt 101. The height of the lifting ribs 107 is less than the gap between the wiping cloth and the conveyor belt 101. By lifting the extruded product locally with the lifting ribs 107 and forming gaps on both sides of the lifting ribs 107, the adhesion between the extruded product and the conveyor belt 101 can be reduced, and the heat dissipation of the extruded product can be accelerated through the formed gaps.

[0037] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this utility model.

Claims

1. A belt conveyor with dual active heat dissipation function, characterized in that, The system includes a belt conveyor for transporting extruded products. Above the belt conveyor, along the conveying direction, are spaced-above a water-cooling mechanism, an air-cooling mechanism, and a wiping mechanism. The water-cooling mechanism is located at the feeding end of the belt conveyor, and the wiping mechanism is located at the unloading end. The belt conveyor includes a conveyor belt. The water-cooling mechanism includes support plates on both sides of the conveyor belt, facing each other. A spray pipe is installed between the support plates, connected to a water pump. Multiple atomizing nozzles are connected along the length of the spray pipe, with the spray direction of the atomizing nozzles pointing towards the falling direction of the extruded products. The wiping mechanism includes fixed plates on both sides of the conveyor belt, with a rotating shaft rotatably connected between the fixed plates. One end of the shaft has a motor, and a wiping roller is fitted onto the shaft. A wiping cloth is fitted onto the wiping roller, with a gap between the wiping cloth and the conveyor belt.

2. The belt conveyor with dual active heat dissipation function according to claim 1, characterized in that, The spray pipe has a circular cross-section, is hollow inside, and is open at one end to form a flow channel. The closed end of the spray pipe is fixedly connected to the surface of a support plate on one side, and the open end of the spray pipe passes through the support plate on the other side and is connected to a water pump. The inlet of the water pump is connected to a water tank.

3. The belt conveyor with dual active heat dissipation function according to claim 2, characterized in that, The belt conveyor also includes side plates distributed on both sides of the conveyor belt. The side plates include an upper wing plate and a lower wing plate located at the upper and lower ends of the outer side. The top surface of the upper wing plate has a sliding hole. The support plate is inserted into the sliding hole and slidably connected to the upper wing plate. In the area of ​​the lower wing plate opposite to the sliding hole, multiple threaded holes are opened along the length of the side plate. The adjusting screw is inserted into the threaded hole from bottom to top and threadedly connected to the lower wing plate. The rod end of the adjusting screw abuts against the bottom surface of the support plate, thereby supporting the support plate.

4. The belt conveyor with dual active heat dissipation function according to claim 3, characterized in that, There is a gap between the end of the wiping roller and the fixed plate.

5. The belt conveyor with dual active heat dissipation function according to claim 4, characterized in that, The air-cooling mechanism includes a reaction frame set above the conveyor belt. Multiple fans are fixedly connected to the top of the reaction frame along its length, and the air outlets of the fans are directly opposite the conveyor belt.

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