Electric heating thickness-determining roller for producing asphalt waterproof coiled material

Abstract

The utility model relates to an electric heating thickness-determining roller for asphalt waterproof coiled material production, and belongs to the technical field of waterproof coiled material production. The electric heating mode is adopted, the heating temperature can be accurately controlled, the electric heating device has the advantages of being high in heat efficiency, high in response speed and low in energy consumption, and environmental pollution and potential safety hazards caused by a traditional heat conduction oil heating mode are avoided; a plurality of hot air circulation holes are formed in the hollow shaft and matched with a hot air circulation pipe and a pipeline booster fan, hot air circulation in the roller can be achieved, the temperature difference generated by heat loss at the two ends of the roller is supplemented through circulating heat, the surface temperature of the whole roller can be evenly distributed, the thickness uniformity of the waterproof roll is guaranteed, and the service life of the waterproof roll is prolonged. And the product quality is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of waterproof coiled material production, and particularly relates to an electric heating thickness-setting roller for producing asphalt waterproof coiled material. Background Art

[0002] During the production of asphalt waterproofing membranes, to ensure product quality and consistent thickness across each roll, a thickness control roller is typically used. However, traditional thickness control rollers primarily use thermal oil to heat the rollers, a method that suffers from high energy consumption, uneven heating, and difficulty in temperature control. The thermal oil can leak during operation, polluting the environment. Furthermore, the oil can decompose at high temperatures, producing harmful gases and potentially leading to fires and other safety incidents due to improper operation. Most electric heating rollers currently on the market experience a temperature difference between the center and ends of the roller during use, affecting the heating effect and, in turn, the uniformity of the waterproofing membrane's thickness, reducing product quality. Utility Model Content

[0003] To overcome the problems of high energy consumption, uneven heating, and difficult temperature control in conventional thickness-calibrating rollers in the background art, which mainly use thermal oil to heat the rollers, there is a risk of leakage during operation, which can pollute the environment. Thermal oil may also decompose at high temperatures, producing harmful gases, or causing safety accidents such as fires due to improper operation. Most electric heating rollers currently on the market experience a temperature difference between the center of the roller and its ends during use, which affects the heating effect and, in turn, the thickness uniformity of the waterproofing membrane, thereby reducing product quality. The present invention provides an electric heating thickness-calibrating roller for asphalt waterproofing membrane production. The electric heating method enables precise control of the heating temperature and has the characteristics of high thermal efficiency, fast response speed, and low energy consumption, thereby avoiding the environmental pollution and safety hazards caused by traditional thermal oil heating methods. Multiple hot air circulation holes are provided on the hollow shaft, and a hot air circulation pipe and a duct booster fan are used to achieve hot air circulation inside the roller. The circulating heat is used to compensate for the temperature difference caused by heat loss at the two ends of the roller, so that the surface temperature of the entire roller is evenly distributed, ensuring the thickness uniformity of the waterproofing membrane and improving product quality.

[0004] To achieve the above-mentioned purpose, the utility model is realized through the following technical solutions: an electric heating thickness-setting roller for producing asphalt waterproofing membrane mainly comprises a hollow shaft, a roller, an electric heating rod, a shaft head, a three-way joint, a hot air circulation pipe, a pipeline booster fan, and a fixing piece. Two sets of connecting disks are provided on the hollow shaft, and the electric heating rods are installed between the connecting disks through the fixing piece. The electric heating rods are arranged equidistantly along the circumference of the connecting disks. Two sets of hollow-structured shaft heads are sleeved on the end of the hollow shaft, and the end of the shaft head is connected to the hollow shaft through a bearing. The roller is mounted on the shaft head and is coaxial with the hollow shaft. The tee joint is sleeved on the end of the hollow shaft and is threadedly connected to the shaft head. A threading hole for passing an insulated wire is provided on the hollow shaft. The threading hole is located inside the tee joint and is coaxial with its outlet. A plurality of hot air circulation holes located inside the roller are equidistantly provided on the hollow shaft along the axial direction. A sealing block is provided in the middle of the hollow shaft. One end of the hot air circulation pipe is connected to the air inlet of the hollow shaft, and the other end is connected to the air outlet of the hollow shaft. A duct booster fan is installed inside the hot air circulation pipe.

[0005] The roller end is provided with an annular fixing block, the shaft head end is provided with a flange cover with the same inner diameter as the roller, the flange cover is connected to the annular fixing block by screws, and a sealing ring is provided between the contact surface of the flange cover and the annular fixing block.

[0006] The diameter of the connecting disk is smaller than the diameter of the fixing block 201, and U-shaped grooves for installing the electric heating rod are evenly opened on the connecting disk along the circumferential direction. The fixing part is configured as two semicircular clamping blocks that are clamped to each other. Positioning grooves corresponding to the U-shaped grooves are opened on the clamping blocks along the circumferential direction, and the clamping blocks are installed on the connecting disk by bolts.

[0007] Beneficial effects of the utility model:

[0008] The utility model adopts electric heating, which can accurately control the heating temperature, has the characteristics of high thermal efficiency, fast response speed and low energy consumption, and avoids the environmental pollution and safety hazards caused by traditional thermal oil heating. By arranging multiple hot air circulation holes on the hollow shaft, and coordinating with hot air circulation pipes and pipeline booster fans, hot air circulation inside the roller can be achieved, and the circulating heat is used to supplement the temperature difference caused by heat loss at both ends of the roller, so that the surface temperature of the entire roller can be evenly distributed, ensuring the thickness uniformity of the waterproof membrane and improving product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a three-dimensional schematic diagram of the utility model in the installed state.

[0010] Figure 2 It is a three-dimensional schematic diagram of the internal structure of the utility model.

[0011] Figure 3 It is a cross-sectional view of the utility model.

[0012] Figure 4 yes Figure 2 A partial enlarged view of point A in the middle.

[0013] Figure 5 yes Figure 2 A partial enlarged view of point B in the middle.

[0014] Figure 6 yes Figure 2 A partial enlarged view of point C in the middle.

[0015] Figure 7 yes Figure 2 A partial enlarged view of point D in the middle.

[0016] Figure 8 This is a partial enlarged view of the installation status of the heating rod.

[0017] Figure 9 This is a partial enlarged view of the installation status of the fixing parts and the connecting plate. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and beneficial effects of the present invention clearer, the preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings to facilitate understanding by technicians.

[0019] The utility model discloses an electric heating thickness-setting roller for producing asphalt waterproofing coiled material, which mainly comprises a hollow shaft 1, a roller 2, an electric heating rod 3, a shaft head 4, a three-way joint 5, a hot air circulation pipe 6, a pipeline booster fan 7, and a fixing part 8. Two groups of connecting disks 101 are provided on the hollow shaft 1. The electric heating rod 3 is installed between the connecting disks 101 through the fixing part 8, and the electric heating rods 3 are arranged equidistantly along the circumferential direction of the connecting disks 101. When the electric heating rod 3 is energized, heat is generated to heat the roller 2. The heating temperature can be accurately controlled, and the electric heating rod 3 has the characteristics of high thermal efficiency, fast response speed and low energy consumption, avoiding the environmental pollution and safety hazards caused by the traditional thermal oil heating method; the end of the hollow shaft 1 is sleeved with two groups of shaft heads 4 with hollow structures, and the end of the shaft head 4 is connected to the hollow shaft 1 through a bearing, the roller 2 is installed on the shaft head 4 and is coaxial with the hollow shaft 1, the three-way joint 5 is sleeved on the end of the hollow shaft 1 and is threadedly connected to the shaft head 4, and the hollow shaft 1 A threading hole 104 for threading insulated wires is provided on the top, and the threading hole 104 is located inside the three-way joint 5 and coaxial with its outlet. A plurality of hot air circulation holes 103 located inside the roller 2 are equidistantly provided on the hollow shaft 1 along the axial direction. One end of the high-temperature resistant insulated wire connected to the end of the electric heating rod 3 is inserted into the hot air circulation hole 103 and passes out along the threading hole 104 on the hollow shaft 1, ensuring that the insulated wire will not be entangled during operation; a sealing block 102 is provided in the middle of the hollow shaft 1, one end of the hot air circulation pipe 6 is connected to the air inlet of the hollow shaft 1, and the other end is connected to the air outlet of the hollow shaft 1, forming a closed hot air circulation path, and a duct booster fan 7 is installed inside the hot air circulation pipe 6. The duct booster fan 7 drives the hot air to circulate inside the roller 2 and the hot air circulation pipe 6, so that the heat can be evenly distributed to the surface of the entire roller 2, which can effectively compensate for the temperature difference caused by heat loss at both ends of the roller 2, ensure the thickness uniformity of the waterproof membrane, and thus improve product quality.

[0020] An annular fixing block 201 is provided at the end of the roller 2, and a flange cover 401 with the same inner diameter as the roller 2 is provided at the end of the shaft head 4. The flange cover 401 is connected to the annular fixing block 201 by screws, and a sealing ring is provided between the contact surface of the flange cover 401 and the annular fixing block 201; the sealing ring can effectively prevent the hot air inside the roller 2 from leaking, avoiding the problem of leakage when the hot air circulates inside the roller 2, thereby improving the heating efficiency of the roller 2.

[0021] The diameter of the connecting disk 101 is smaller than the diameter of the fixing block 201. U-shaped grooves 1011 for installing the electric heating rod 3 are evenly opened on the connecting disk 101 along the circumferential direction. The fixing member 8 is configured as two semicircular clamping blocks that are clamped to each other. Positioning grooves corresponding to the U-shaped grooves 1011 are opened on the clamping blocks along the circumferential direction. The clamping blocks are installed on the connecting disk 101 by bolts; the two semicircular clamping blocks that are clamped to each other can provide stable support for the electric heating rod 3 and are easy to disassemble and assemble.

[0022] Working process:

[0023] During operation, the staff turns on the power switch of the electric heating rod 3, and heats the roller 2 through the electric heating rod 3, which can accurately control the heating temperature, has the characteristics of high thermal efficiency, fast response speed and low energy consumption, and avoids the environmental pollution and safety hazards caused by the traditional thermal oil heating method; during the heating process, the hot air in the cavity of the roller 2 flows into the hollow shaft 1 through the hot air circulation hole 103 on the hollow shaft 1, and under the action of the pipeline booster fan 7, it is drawn into the other end of the hollow shaft 1 along the hot air circulation pipe 6, so that the hot air flows into the cavity of the roller 2 through the hot air circulation hole 103 on the hollow shaft 1, realizing the hot air circulation inside the roller 2, and using the circulating heat to supplement the temperature difference caused by heat loss at both ends of the roller 2, so that the surface temperature of the roller 2 is uniform, thereby ensuring that the waterproof membrane can obtain a uniform thickness when passing through the roller 2, thereby improving the quality of the product.

[0024] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. An electrically heated thickness-setting roller for producing asphalt waterproofing membranes, characterized in that: The electric heating thickness setting roller for producing asphalt waterproofing membrane comprises a hollow shaft (1), a roller (2), an electric heating rod (3), a shaft head (4), a three-way joint (5), a hot air circulation pipe (6), a pipeline booster fan (7), and a fixing member (8). Two groups of connecting disks (101) are provided on the hollow shaft (1), the electric heating rod (3) is installed between the connecting disks (101) through the fixing member (8), and the electric heating rods (3) are arranged equidistantly along the circumferential direction of the connecting disks (101). Two groups of hollow shaft heads (4) are sleeved on the end of the hollow shaft (1), and the end of the shaft head (4) is connected to the hollow shaft (1) through a bearing. The roller (2) is installed on the shaft head (4) and The hollow shaft (1) is coaxial with the hollow shaft (1), the three-way joint (5) is sleeved on the end of the hollow shaft (1) and is threadedly connected to the shaft head (4), the hollow shaft (1) is provided with a threading hole (104) for threading an insulated wire, the threading hole (104) is located inside the three-way joint (5) and is coaxial with its outlet, the hollow shaft (1) is provided with a plurality of hot air circulation holes (103) located inside the roller (2) at equal intervals along the axial direction, a sealing block (102) is provided in the middle of the hollow shaft (1), one end of the hot air circulation pipe (6) is connected to the air inlet of the hollow shaft (1), and the other end is connected to the air outlet of the hollow shaft (1), and a pipeline booster fan (7) is installed inside the hot air circulation pipe (6).

2. The electrically heated thickness calibrating roller for producing asphalt waterproofing membrane according to claim 1, characterized in that: The roller (2) is provided with an annular fixing block (201) at the end thereof, and the shaft head (4) is provided with a flange cover (401) having the same inner diameter as the roller (2). The flange cover (401) is connected to the annular fixing block (201) via screws, and a sealing ring is provided between the contact surfaces of the flange cover (401) and the annular fixing block (201).

3. The electrically heated thickness calibrating roller for producing asphalt waterproofing membrane according to claim 2, characterized in that: The diameter of the connecting disk (101) is smaller than the diameter of the fixing block (201), and U-shaped grooves (1011) for mounting the electric heating rod (3) are uniformly provided on the connecting disk (101) along the circumferential direction. The fixing member (8) is configured as two semicircular clamping blocks that are clamped to each other, and positioning grooves corresponding to the U-shaped grooves (1011) are provided on the clamping blocks along the circumferential direction. The clamping blocks are mounted on the connecting disk (101) by bolts.

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