Heat treatment device for sunshade and heat insulation curtain

Abstract

This invention discloses a heat treatment device for sunshade and heat-insulating curtains, including a bracket, a side support plate, and a preheating mechanism. A heating roller is rotatably mounted on the bracket. The side support plate is located on the side of the bracket and connected to a support base. The preheating mechanism includes a hot air source device, an air supply duct, and an air guide box. The hot air source device includes a hot air box, one end of which is an air inlet, and the other end of which is connected to the air supply duct. A heating resistance element is located inside the hot air box near the air supply duct, and a fan is located inside the hot air box near the air inlet. The other end of the air supply duct is connected to the air guide box, which is positioned close to the heating roller. This solution can quickly heat the heating roller, increasing the rate of heat treatment of the sunshade and heat-insulating curtain.

Description

Technical Field

[0001] This invention belongs to the field of heat treatment technology, specifically relating to a heat treatment device for sunshade and heat-insulating curtains. Background Technology

[0002] Traditional shading curtains are commonly used for shading in agricultural greenhouses, but they heat up during operation and may shrink under high temperatures. Since different materials have different thermal deformation rates, this can affect the shading effect. Shading curtains are made of thermoplastic resin and are produced through stretching; therefore, a pre-shrinking device is needed to ensure stable operation and functionality under high temperatures. Heat treatment involves exposing the humidified shading curtain to a certain high temperature. The curtain's fiber structure typically contains elastic fibers; high temperatures cause these fibers to lose some elasticity, resulting in shrinkage. Heat treatment usually involves heating the surface of the curtain using high-temperature heating rollers.

[0003] Chinese Patent Application No. 2021222661971 discloses a heat treatment system for sunshade curtains, relating to the field of sunshade curtain heat treatment technology. The system includes a temperature sensor, a pressure sensor, a central controller, a storage module, a clock module, a heating oil heater assembly driver, a heating oil heater assembly, an alarm device driver, and an alarm device. The temperature sensor and pressure sensor are respectively connected to the central controller; the storage module and clock module are respectively connected to the central controller; the electric heater driver and alarm device driver are respectively connected to the central controller; the heating oil heater assembly is connected to the heating oil heater assembly driver; and the alarm device is connected to the alarm device driver.

[0004] The aforementioned technical solution involves heating the roller shell using an electric heater, which needs to be manually turned on and off to improve safety. However, current heating rollers heat the entire roller shell through an internal heat source. This heating method is slow and prone to uneven heating, affecting the heat treatment effect on the curtain. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a heat treatment device for a sunshade and heat-insulating curtain, comprising a bracket, a side support plate, and a preheating mechanism. A heating roller is rotatably mounted on the bracket. The side support plate is located on the side of the bracket and connected to a support base. The preheating mechanism includes a hot air source device, an air supply pipe, and an air guide box. The hot air source device is fixed to the support base and includes a hot air box. One end of the hot air box is an air inlet, and the other end is connected to an air supply pipe. A heating resistance element is located inside the hot air box near the air supply pipe, and a fan is located inside the hot air box near the air inlet. The other end of the air supply pipe is connected to the air guide box, which is positioned close to the heating roller.

[0006] Preferably, the air guide box includes an outer shell and an inner filter section. The inner filter section is located inside the outer shell and includes a front connecting frame and a rear connecting frame connected front to back. A filter element is sandwiched between the front connecting frame and the rear connecting frame, and the filter element has a plurality of filter holes.

[0007] Preferably, the air guide box is connected to a support member, the support member including a bent rod, the top of the bent rod being hinged to the bracket, one end of the bottom of the bent rod being connected to the air guide box, and the other end of the bottom of the bent rod being hinged to an electric telescopic rod, the output end of the electric telescopic rod being hinged to a vertical connecting plate, and the vertical connecting plate being connected to a side support plate.

[0008] Preferably, a dust collection box is connected to the bottom of the air guide box, the dust collection box has an opening on the side near the heating roller, a negative pressure pipe is connected to the other side of the dust collection box, a negative pressure pump is connected to one end of the negative pressure pipe, and the negative pressure pump is located on the side support plate.

[0009] Preferably, a cleaning shaft is rotatably provided in the dust collection box, a cleaning brush is provided on the cleaning shaft, a rotary motor is provided on the side of the dust collection box, and the output end of the rotary motor is connected to the cleaning shaft.

[0010] Preferably, the dust collection box is also provided with a scraper, which contacts the cleaning brush.

[0011] Preferably, the heating roller includes an outer roller body and an inner heating shaft core, the space inside the outer roller body forms a heating cavity, and the heating cavity is filled with heating oil.

[0012] Preferably, the outer roller body is provided with a plurality of heat-conducting sheets inside, the heat-conducting sheets are fixed on the inner surface of the outer roller body and the spacing between each heat-conducting sheet is the same.

[0013] Preferably, the top of the outer casing is provided with an opening slot, the top of the front connecting frame is provided with a handle, and the inner filter is installed inside the outer casing through the slot.

[0014] Preferably, the air supply duct includes an integrally formed linear portion and a U-shaped portion, the linear portion being connected to a hot air source device, and the U-shaped portion being connected to an air guide box.

[0015] The advantages of this invention are:

[0016] 1. This solution includes a hot air source device, an air supply pipe, and an air guide box, which can quickly preheat the surface of the heating roller from the outside. At the same time, in conjunction with the heating shaft inside the heating roller, it can quickly heat the heating tube from both inside and outside, thereby improving the heat treatment rate.

[0017] 2. This solution includes a dust collection box and a negative pressure box, which can clean the surface of the heating roller and prevent impurities from adhering to the surface of the heating roller.

[0018] 3. This solution also includes a cleaning shaft and a cleaning brush, which can further clean the surface of the heating roller and improve the cleaning effect.

[0019] 4. The heating roller in this solution is equipped with heat-conducting plates inside, which can improve the heating rate. At the same time, the heat-conducting plates can distribute heat, avoid overheating areas and local temperature differences, and ensure that the surface of the heating roller is heated evenly. Attached Figure Description

[0020] Figure 1 This is a structural diagram of the present invention;

[0021] Figure 2 This is a structural diagram of the air guide box of the present invention;

[0022] Figure 3 This is a structural diagram of the internal filter section of the present invention;

[0023] Figure 4 This is a structural diagram of the heating roller of the present invention;

[0024] Figure 5 This is a cross-sectional view of the heating roller of the present invention.

[0025] In the diagram: 1. Bracket, 2. Side support plate, 3. Heating roller, 4. Support base, 5. Air supply pipe, 6. Air guide box, 7. Hot air box, 8. Heating resistance element, 9. Fan, 10. Outer shell, 11. Front connecting frame, 12. Rear connecting frame, 13. Filter element, 14. Bending rod, 15. Electric telescopic rod, 16. Vertical connecting plate, 17. Dust collection box, 18. Negative pressure pipe, 19. Negative pressure pump, 20. Cleaning shaft, 21. Cleaning brush, 22. Rotary motor, 23. Scraper, 24. Outer roller body, 25. Heating shaft core, 26. Heating cavity, 27. Heat conduction plate, 28. Opening groove, 29. Handle, 30. Linear part, 31. U-shaped part. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0027] Example 1

[0028] like Figure 1-3As shown, a heat treatment device for a sunshade and heat-insulating curtain includes a bracket 1, a side support plate 2, and a preheating mechanism. The bracket 1 includes two support columns on both sides and a top crossbeam. A heating roller 3 is rotatably mounted on the bracket 1, and the journals on both sides of the heating roller 3 are rotatably mounted between the two support columns via bearings. The side support plate 2 is fixedly mounted on the side of one of the support columns and connected to a support base 4. The side support plate 2 is perpendicular to the bracket 1. The preheating mechanism includes a hot air source device, an air supply pipe 5, and an air guide box 6. The hot air source device includes a hot air box 7, one end of which is the air inlet, and the other end of which is connected to the air supply pipe 5. A heating resistor 8 is provided inside the hot air box 7 near the air supply pipe 5, and a fan 9 is provided inside the hot air box 7 near the air inlet. Multiple gaps are provided in the middle of the heating resistor 8, and there are also gaps between the heating resistor 8 and the inner wall of the hot air box 7. The purpose of the gaps is to allow air to pass through the heating resistor 8 and the air outlet into the air supply pipe 5. The fan 9 includes a motor and fan blades. The motor is fixed inside the hot air box 7 by a corresponding fixing rod, and the output end of the motor is connected to the fan blades. A corresponding filter screen is also provided at the air inlet of the hot air box 7 for preliminary filtration.

[0029] The other end of the air supply duct 5 is connected to the air guide box 6, which is located close to the heating roller 3. The side of the air guide box 6 closest to the heating roller 3 has a strip-shaped opening slot 28. The heating resistance element 8 in the hot air box 7 is used to heat the gas in the hot air box 7. The motor drives the fan blades to rotate, which drives the airflow. The heated gas enters the air supply duct 5 along the air outlet, and then blows onto the surface of the heating roller 3 through the air guide box 6 to heat the heating roller 3.

[0030] The air guide box 6 includes an outer shell 10 and an inner filter section. The inner filter section is located inside the outer shell 10 and includes a front connecting frame 11 and a rear connecting frame 12 connected front to back. A filter element 13 is sandwiched between the front connecting frame 11 and the rear connecting frame 12. The filter element 13 has several filter holes and is preferably a filter plate. It can further filter the hot airflow blown towards the surface of the heating roller 3, preventing particulate matter in the airflow from being blown onto the surface of the heating roller 3 and causing particulate matter accumulation on the surface of the heating roller 3, which would affect the subsequent heating of the sunshade and heat preservation curtain. The top of the outer shell 10 has an opening slot 28, and the top of the front connecting frame 11 has a handle 29. The inner filter section is installed inside the outer shell 10 through the opening slot 28. The inner filter section can be quickly removed through the opening slot 28, making it convenient to quickly replace the filter element 13.

[0031] In this embodiment, the air guide box 6 is connected to a support member, which is used to fix the air guide box 6 so that the opening slot 28 of the air guide box 6 can be stably positioned on the side of the heating roller 3. The support member includes a bent rod 14, the top of which is hinged to the bracket 1, one end of which is fixedly connected to the air guide box 6, and the other end of which is hinged to an electric telescopic rod 15. The output end of the electric telescopic rod 15 is hinged to a vertical connecting plate 16, which is connected to the side support plate 2. Preferably, two bent rods 14, electric telescopic rods 15, and vertical connecting plates 16 are provided to provide a stable fixation. At the same time, by driving the electric telescopic rod 15 to extend or shorten, the bent rod 14 can be driven, so that the air guide box 6 moves closer to or further away from the heating roller 3, adjusting the distance between them. In this embodiment, the air supply pipe 5 includes an integrally formed linear part 30 and a U-shaped part 31. The linear part 30 is connected to the hot air source device, and the U-shaped part 31 is connected to the air guide box 6. The U-shaped part 31 sends hot air into both sides of the air guide box 6 through two pipes, which enables the hot air to blow more evenly onto the heating roller 3 and heat the heating roller 3 from the surface of the heating roller 3.

[0032] Example 2

[0033] Combination Figure 4-5 This embodiment shares some similarities with Embodiment 1. The heated roller includes an outer roller body 24 and an inner heating core 25. A heating cavity 26 is formed within the outer roller body 24 and filled with heating oil. The heating core 25 itself is a heat-conducting component, containing a heat source, which can be a heating resistance rod or any other device capable of generating heat. After the heat source heats the heating core 25, the heat is transferred to the outer roller body 24 via the heating oil. This heat transfer via the heating oil ensures uniform heat conduction. The outer roller body 24 contains several heat-conducting plates 27, which are fixed to the inner surface of the outer roller body 24 with equal spacing between each plate. The heat-conducting plates 27 increase the heating rate and distribute heat, preventing overheating areas and localized temperature differences, thus ensuring uniform heating of the heated roller 3 surface. The heat-conducting plates 27 further uniformly transfer heat to the outer surface of the outer roller body 24. At the same time, when the air guide box 6 blows hot air onto the surface of the outer roller body 24 of the water tank, the heat conduction sheet 27 can also conduct heat to the inside of the outer roller body 24, and preheat the inside of the outer roller body 24.

[0034] When heating the heating roller 3, it is first heated from the inside by the heating shaft core 25, and then heated from the outside by the preheating mechanism. This internal and external heating method increases the heating rate of the heating roller 3, enabling rapid heat treatment of the curtain. After the heating roller 3 is heated to the specified temperature, the sunshade and heat-insulating curtain will continuously pass over the surface of the heating roller 3, causing pre-shrinkage due to the heat.

[0035] Example 3

[0036] Combination Figure 2 This embodiment shares some similarities with Embodiment 1. A dust collection box 17 is connected to the bottom of the air guide box 6. The dust collection box 17 has an opening on the side near the heating roller 3; the opening is also strip-shaped. A negative pressure pipe 18 is connected to the other side of the dust collection box 17. One end of the negative pressure pipe 18 is connected to a negative pressure pump 19, which is mounted on the side support plate 2. The negative pressure pipe 18 also consists of a linear section and a U-shaped section. The negative pressure pump 19 draws gas from the negative pressure pipe 18 and the dust collection box 17, creating a negative pressure in the dust collection box 17, thereby absorbing foreign matter adhering to the heating roller 3. This embodiment is performed after the heating roller 3 has completed the heat treatment of the sunshade and heat-insulating curtain. When the heating roller 3 heats the sunshade and heat-insulating curtain, since the curtain is attached to the heating roller 3, some fibrous foreign matter that falls off the curtain will also adhere to the heating roller 3 due to the high temperature. After the heat treatment is completed, the heating roller 3 needs to be rotated again so that the dust collection box 17 can adsorb and clean the fibrous foreign matter adhering to the heating roller 3.

[0037] A cleaning shaft 20 is rotatably mounted inside the dust collection box 17, and a cleaning brush 21 is mounted on the cleaning shaft 20. A rotary motor 22 is located on the side of the dust collection box 17, and the output end of the rotary motor 22 is connected to the cleaning shaft 20. When adsorbing foreign objects on the surface of the heating roller 3, the rotary motor 22 drives the cleaning shaft 20 and the cleaning brush 21 to rotate, which can further clean the surface of the heating roller 3, sweeping off the strongly adhesive fibrous foreign objects on the surface of the heating roller 3, and then making it convenient for the dust collection box 17 to adsorb them.

[0038] The dust collection box 17 is also equipped with a scraper 23, which contacts the cleaning brush 21. When the cleaning brush 21 cleans the surface of the heating roller 3, fibrous foreign matter adheres to it. As the cleaning brush 21 continuously cleans the surface of the heating roller 3, it continuously contacts the scraper 23, which continuously scrapes away the foreign matter from the cleaning brush 21, ensuring its cleanliness and thus guaranteeing continuous cleaning. Extending or shortening the electric telescopic rod 15 can drive the bending rod 14, allowing the dust collection box 17 to move closer to or further away from the heating roller 3, adjusting the distance between them.

[0039] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heat treatment device for a sunshade and heat-insulating curtain, characterized in that: The device includes a support frame (1), a side support plate (2), and a preheating mechanism. A heating roller (3) is rotatably mounted on the support frame (1). The side support plate (2) is located on the side of the support frame (1) and connected to a support base (4). The preheating mechanism includes a hot air source device, an air supply pipe (5), and an air guide box (6). The hot air source device is fixed on the support base (4). The hot air source device includes a hot air box (7). One end of the hot air box (7) is the air inlet end, and the other end of the hot air box (7) is connected to the air supply pipe (5). The interior of the hot air box (7) is close to the air supply pipe (5). One end of the heating element (8) is provided with a heating resistance element (8). Inside the hot air box (7), a fan (9) is provided on the side near the air inlet. The other end of the air supply pipe (5) is connected to the air guide box (6). The air guide box (6) is set close to the heating roller (3). The air guide box (6) is connected to a support member. The support member includes a bent rod (14). The top of the bent rod (14) is hinged to the bracket (1). One end of the bottom of the bent rod (14) is connected to the air guide box (6). The other end of the bottom of the bent rod (14) is hinged to an electric telescopic rod (15). The output end of the electric telescopic rod (15) is hinged to a vertical connecting plate (16), which is connected to the side support plate (2). The bottom of the air guide box (6) is connected to a dust collection box (17). The dust collection box (17) has an opening on the side near the heating roller (3). The other side of the dust collection box (17) is connected to a negative pressure pipe (18). One end of the negative pressure pipe (18) is connected to a negative pressure pump (19), which is mounted on the side support plate (2). A cleaning shaft (20) is rotatably mounted in the dust collection box (17). The cleaning shaft (20) is provided with a cleaning brush (21), and the side of the dust collection box (17) is provided with a rotary motor (22). The output end of the rotary motor (22) is connected to the cleaning shaft (20). The dust collection box (17) is also provided with a scraper (23). The scraper (23) contacts the cleaning brush (21). The heating roller (3) includes an outer roller body (24) and an inner heating shaft core (25). The space inside the outer roller body (24) forms a heating chamber (26), which is filled with heating oil.

2. The heat treatment device for sunshade and heat-insulating curtains according to claim 1, characterized in that: The air guide box (6) includes an outer shell (10) and an inner filter section. The inner filter section is located inside the outer shell (10). The inner filter section includes a front connecting frame (11) and a rear connecting frame (12) connected front to back. A filter element (13) is sandwiched between the front connecting frame (11) and the rear connecting frame (12). The filter element (13) has a plurality of filter holes.

3. The heat treatment device for sunshade and heat-insulating curtains according to claim 2, characterized in that: The outer roller body (24) is provided with a number of heat-conducting plates (27), which are fixed on the inner surface of the outer roller body (24) and the spacing between each heat-conducting plate (27) is the same.

4. The heat treatment device for sunshade and heat-insulating curtains according to claim 3, characterized in that: The top of the outer shell (10) is provided with an opening groove (28), the top of the front connecting frame (11) is provided with a handle (29), and the inner filter is installed inside the outer shell (10) through the opening groove.

5. The heat treatment device for sunshade and heat-insulating curtains according to claim 1, characterized in that: The air supply pipe (5) includes an integrally formed linear part (30) and a U-shaped part (31). The linear part (30) is connected to the hot air source device, and the U-shaped part (31) is connected to the air guide box (6).

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