A thermoplastic road marking refurbishment device

Abstract

The present invention discloses a thermoplastic road marking renovation device, which relates to the technical field of road marking renovation equipment. The technical solution is as follows: it includes a frame, and the bottom of the frame is provided with a cleaning area for cleaning, a first heating area for preheating and roughening, a spreading area for spreading materials, a second heating area for reheating, and a mold roller for shaping. The beneficial effect of the present invention is that the device can directly refurbish old road markings. The metal brush has a blowing function in the front and a dust suction function in the back. The entire cleaning area is rotatable. After the first heating area heats and softens it, the roller roughens it and preliminarily sweeps away the dust and materials on it, and then spreads the materials. The new and old materials have different levels. The entire device integrates the partial grinding and cleaning of the old markings and the marking of the new markings, realizing the automatic renovation of road markings and greatly improving the renovation efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of road marking renovation equipment, in particular to a thermoplastic road marking renovation device. Background Art

[0002] Thermoplastic road marking paint is in powder form at room temperature. It needs to be heated and boiled at high temperature using professional hot melt equipment. The average temperature needs to reach 180℃-220℃. Currently, the most commonly used equipment is hot melt kettle trolleys and vehicle-mounted integrated hot melt kettles.

[0003] The existing technology is to use measuring tools and slate pencils to mark the ground according to the positions and graphics indicated on the design drawings, and to determine the points. Titanium dioxide or double fly ash is used to stick hemp rope to draw lines. After the paint is boiled in a hot melt kettle, it flows into the marking machine through a discharge chute. After the marking machine is filled with paint, a spatula is used to shovel the paint from the discharge chute into the marking machine, the chute is folded, the fire is reduced to keep the paint in the cylinder warm, and then the marking is carried out. The operation is complicated. Moreover, when renovating the road markings, the existing technology requires that all old markings be cleaned up, which consumes a lot of manpower and material resources and is inefficient. Summary of the Invention

[0004] In order to achieve the above-mentioned purpose of the invention and address the above-mentioned technical problems, the present invention provides a thermoplastic road marking refurbishment device.

[0005] The technical solution is as follows: it comprises a frame, wherein the bottom of the frame is provided with a cleaning area for cleaning, a first heating area for preheating and roughening, a spreading area for spreading materials, a second heating area for reheating, and a mold roller for shaping from front to back;

[0006] A rubber pad partition is provided between the cleaning area and the first heating area; the rubber pad partition acts as a barrier to prevent the wind from the air outlet of the cleaning area from blowing backwards;

[0007] The second heating zone is connected to the first heating zone, and both contain built-in heating rods, high-temperature thermal oil, safety valves, and circulation pumps. The cavities of the second and first heating zones are made of corrosion-resistant and high-temperature resistant materials. The heating rods are equipped with temperature sensors and thermostats. An oil box is installed on each heating zone to facilitate observation and to control heating and disconnect if the oil temperature is too high, as it will boil. The operating temperature of the high-temperature thermal oil is controlled by the thermostat.

[0008] An electric push rod 1 is provided between the first heating zone and the spreading zone, the fixed end of the electric push rod 1 is fixedly connected to the bottom of the frame, the telescopic end of the electric push rod 1 is fixedly provided with a U-shaped bracket 2, and a burr roller for pulling the hair is rotatably connected inside the U-shaped bracket 2.

[0009] Because the marking material is relatively rough and cannot be completely cleaned, the surface of the old marking line becomes uneven by roughening it with a burr roller. The concave parts can be filled with new material. The roughening operation makes the new and old materials fit as close as possible.

[0010] The material spreading area includes a material storage barrel, and a material discharge port is provided below the material storage barrel;

[0011] A placement slot is provided in the frame, the material storage barrel is arranged in the placement slot, and an upper cover is provided on the top of the material storage barrel.

[0012] The cleaning area includes a support provided at the front end of the frame, a U-shaped bracket is hingedly connected to the support, a rotating shaft is hingedly connected between the U-shaped brackets, an arc-shaped cover is provided above the rotating shaft, a metal brush for polishing is provided inside the arc-shaped cover, a fan is provided on the inner wall of the arc-shaped cover in front of the metal brush, a plurality of evenly distributed air outlets are provided at the end of the fan, a dust collector is provided on the inner wall of the arc-shaped cover in front of the metal brush, and a dust hood is provided at the end of the dust collector;

[0013] The top of the dust hood is tilted, and the opening of the dust hood is arranged toward the metal brush;

[0014] The support 1 is symmetrically provided with two, and the U-shaped bracket 1 is provided with two connecting rods at one end facing the support 1, and the connecting rods are hinged to the support 1;

[0015] The hinged joint between the connecting rod and the support 1 and the rotating shaft 1 are driven to rotate by respective motors, and the hinged joint between the connecting rod and the support 1 and the motors of the rotating shaft 1 are electrically connected to a control center.

[0016] A camera is provided between the material spreading area and the second heating area, and can observe the working status of the lower part.

[0017] The frame is provided with a control panel at the rear, and four wheels are provided at the bottom of the frame, and the height of the four wheels is controlled by hydraulic pressure;

[0018] The frame is surrounded by equipment covers, with maintenance space reserved inside. A traction mechanism is installed at the front of the device, which can be towed by a vehicle.

[0019] It also includes an automatic line patrol system, the automatic line patrol system includes a sensor 1, and the sensor 1 is arranged in front of the outer wall of the arc-shaped cover;

[0020] A second sensor is provided in front of the first heating zone, and the second sensor is electrically connected to the first heating zone;

[0021] A sensor three is provided in front of the material spreading area, and a plurality of closed ports are provided at the material discharging port to be linked with the sensor three;

[0022] The sensor 1, sensor 2, and sensor 3 are all electrically connected to the control center; the sensor 1, sensor 2, and sensor 3 are all AI visual sensors.

[0023] An automatic line-following system based on sensors or AI vision enables the device to follow the marked lines. Sensor 3 is located in front of the spreading area to determine the spreading area. Multiple closed ports are installed at the discharging outlet of the spreading area and are linked to Sensor 3, which controls the precise discharging. Because the equipment is large and the bottom cannot be directly viewed, the coordination of Sensors 1, 2, and 3 ensures that the spreading area and the two heating zones are always above the marked lines.

[0024] The bottom of the frame is provided with an electric push rod 2, the fixed end of the electric push rod 2 is fixedly connected to the bottom of the frame, the telescopic end of the electric push rod 2 is fixedly provided with a U-shaped bracket 3, and the mold roller is rotatably connected in the U-shaped bracket 3;

[0025] The outer wall of the mold roller is provided with evenly distributed burrs. The burred mold roller presses the new and old materials together and mixes them, but does not pull them out.

[0026] Ignoring the height of the wheels, the internal equipment is 1-2 cm above the ground. The wheels are powered by an electric drive engine or an external power supply. The front can be steered, and the rear control panel displays the machine status.

[0027] The beneficial effects brought about by the technical solution provided by the embodiment of the present invention are: this solution provides a hot-melt road marking renovation device, which can directly refurbish old road markings in a partial grinding manner. The metal brush has an air blower in front and a dust collector in the back. The entire cleaning area is rotatable. When cleaning, the metal brush contacts the ground and is lifted up after cleaning. After the first heating zone heats and softens it, the roller pulls the hairs to preliminarily sweep the dust and material on it, and then spreads the material. The new and old materials have a high and low level, instead of laying the new material directly on it. If it is laid directly on it, the viscosity of the repaired old material has no tension. The mold roller can adopt a flattening roller or an oscillation line roller and a concave and convex roller. On the one hand, the material is compacted and initially cooled, and on the other hand, it can directly support the concave and convex oscillation line. The entire device integrates the partial grinding and cleaning of the old road marking and the marking of the new road marking, realizes the automatic renovation of road markings, and greatly improves the renovation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 The overall structure of the embodiment of the present invention is shown in FIG. Figure 1 .

[0029] Figure 2 The overall structure of the embodiment of the present invention is shown in FIG. Figure 2 .

[0030] Figure 3 Schematic diagram of the structure of the material spreading area in an embodiment of the present invention.

[0031] Figure 4 This is a schematic structural diagram of the mold roller according to Example 1 of the present invention.

[0032] Figure 5 This is a schematic structural diagram of the mold roller according to embodiment 2 of the present invention.

[0033] Figure 6 This is a schematic structural diagram of the mold roller according to embodiment 3 of the present invention.

[0034] Among them, the figures are marked as follows: 10, frame; 1, cleaning area; 2, first heating area; 3, spreading area; 4, second heating area; 5, mold roller; 6, rubber pad partition; 14, electric push rod one; 15, U-shaped bracket two; 7, burr roller; 301, storage barrel; 302, discharge port; 303, placement slot; 304, upper cover; 101, support one; 102, U-shaped bracket one; 103, rotating shaft one; 104, arc-shaped cover; 105, metal brush; 106, air outlet; 107, dust hood; 108, connecting rod; 8, camera; 20, control panel; 30, wheel; 11, sensor one; 12, sensor two; 13, sensor three; 16, electric push rod two; 17, U-shaped bracket three; 502, burr; 501, depression. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. Of course, the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0036] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are 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 therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, features defined as "first", "second" and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0038] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art can understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0039] Example 1

[0040] See also Figures 1 to 6 The present invention provides a thermoplastic marking refurbishment device, comprising a frame 10, wherein the bottom of the frame 10 is provided with a cleaning area 1 for cleaning, a first heating area 2 for preheating roughening, a spreading area 3 for spreading material, a second heating area 4 for reheating, and a mold roller 5 for shaping from front to back;

[0041] A rubber pad partition 6 is provided between the cleaning area 1 and the first heating area 2; the rubber pad partition 6 acts as a barrier to prevent the wind from the air outlet of the cleaning area from blowing backwards;

[0042] The second heating zone 4 is connected to the first heating zone 2. Both zones contain built-in heating rods, high-temperature thermal oil, safety valves, and circulation pumps. The cavities of the second heating zone 4 and the first heating zone 2 are made of corrosion-resistant and high-temperature resistant materials. The heating rods are equipped with temperature sensors and thermostats. An oil box is installed in each heating zone to facilitate observation and to control heating and disconnect if the oil temperature is too high, as it will boil. The operating temperature of the high-temperature thermal oil is controlled by the thermostat.

[0043] An electric push rod 14 is provided between the first heating zone 2 and the spreading zone 3. The fixed end of the electric push rod 14 is fixedly connected to the bottom of the frame 10. The telescopic end of the electric push rod 14 is fixedly provided with a U-shaped bracket 2 15. The U-shaped bracket 2 15 is rotatably connected with a burr roller 7 for pulling the hair.

[0044] Because the marking material is relatively rough and cannot be completely cleaned, the burr roller 7 is used to pull the roughness so that the surface of the old marking line becomes uneven. The concave part can be filled with new material. The pulling operation makes the new material and the old material as close as possible.

[0045] The material spreading area 3 includes a material storage barrel 301, and a material discharge port 302 is provided below the material storage barrel 301;

[0046] A placement slot 303 is provided in the frame 10 , a material storage barrel 301 is provided in the placement slot, and an upper cover 304 is provided on the top of the material storage barrel 301 .

[0047] The cleaning area 1 includes a support 101 provided at the front end of the frame 10, a U-shaped bracket 102 being hingedly connected to the support 101, a rotating shaft 103 being hingedly connected between the U-shaped bracket 102, an arc-shaped cover 104 being provided above the rotating shaft 103, a metal brush 105 for polishing being provided inside the arc-shaped cover 104, a fan being provided on the inner wall of the arc-shaped cover 104 in front of the metal brush 105, a plurality of evenly distributed air outlets 106 being provided at the end of the fan, a dust collector being provided on the inner wall of the arc-shaped cover 104 in front of the metal brush 105, a dust hood 107 being provided at the end of the dust collector;

[0048] The top of the dust cover 107 is tilted, and the opening direction of the dust cover 107 is set toward the metal brush 105;

[0049] Two support 101 are symmetrically provided. Two connecting rods 108 are provided at one end of the U-shaped bracket 102 facing the support 101. The connecting rods 108 are hinged to the support 101.

[0050] The hinge between the connecting rod 108 and the support 101 and the rotating shaft 103 are driven to rotate by their own motors, and the hinge between the connecting rod 108 and the support 101 and the motors of the rotating shaft 103 are electrically connected to the control center.

[0051] A camera 8 is provided between the spreading area 3 and the second heating area 4. The camera 8 can observe the working state of the lower part.

[0052] A control panel 20 is provided at the rear of the frame 10, and four wheels 30 are provided at the bottom of the frame 10, and the heights of the four wheels 30 are controlled by hydraulic pressure;

[0053] The frame 10 is provided with equipment covers all around, and the internal settings all retain maintenance space. The front end of the device is provided with a traction mechanism. The traction mechanism can be used to tow the vehicle.

[0054] It also includes an automatic line patrol system, which includes a sensor 11, and the sensor 11 is arranged in front of the outer wall of the arc-shaped cover 104;

[0055] A second sensor 12 is provided in front of the first heating zone 2 and is electrically connected to the first heating zone 2;

[0056] A sensor 3 13 is provided in front of the spreading area 3, and a plurality of closed ports are provided at the discharge port 302 to be linked to the sensor 3 13;

[0057] Sensor 1 11 , sensor 2 12 , and sensor 3 13 are all electrically connected to the control center; sensor 1 11 , sensor 2 12 , and sensor 3 13 are all AI visual sensors.

[0058] An automatic line-following system based on sensors or AI vision allows the device to follow the marked line. Sensor 3 13 is located in front of the spreading area 3 to determine the spreading area. Multiple closed openings are located at the outlet 302 of the spreading area 3 and are linked to sensor 3 13, which controls precise spreading. Because the device is large and the bottom cannot be directly viewed, the coordination of sensors 1 11, 2 12, and 3 13 ensures that the spreading area and the two heating zones are always above the marked line.

[0059] The bottom of the frame 10 is provided with an electric push rod 2 16, the fixed end of the electric push rod 2 16 is fixedly connected to the bottom of the frame 10, the telescopic end of the electric push rod 2 16 is fixedly provided with a U-shaped bracket 3 17, and the mold roller 5 is rotatably connected in the U-shaped bracket 3 17;

[0060] The outer wall of the die roller 5 is provided with evenly distributed burrs 502. The thorny die roller 5 presses the new and old materials and mixes them with each other, but does not pull them out.

[0061] The bottom of the frame 10 is provided with an electric push rod 2 16, the fixed end of the electric push rod 2 16 is fixedly connected to the bottom of the frame 10, the telescopic end of the electric push rod 2 16 is fixedly provided with a U-shaped bracket 3 17, and the mold roller 5 is rotatably connected in the U-shaped bracket 3 17;

[0062] The mold roller 5 is set to be cylindrical, and the outer wall of the cylinder is provided with recesses 501. The recesses 501 are arranged along the radial circumference of the mold roller 5 and are spaced apart along the axial direction of the mold roller 5. The array distribution of the recesses forms a continuous groove, which can be used to make an oscillation mark.

[0063] The bottom of the frame 10 is provided with an electric push rod 2 16, the fixed end of the electric push rod 2 16 is fixedly connected to the bottom of the frame 10, the telescopic end of the electric push rod 2 16 is fixedly provided with a U-shaped bracket 3 17, and the mold roller 5 is rotatably connected in the U-shaped bracket 3 17;

[0064] The outer surface of the mold roller 5 is set to a smooth plane. Ordinary plane markings can be made.

[0065] Ignoring the height of the wheels 30, the internal equipment is 1-2 cm above the ground. The wheels 30 are powered by an electric drive engine or an external power source, the front can be steered, and the rear control panel 20 displays the machine status;

[0066] During operation, the user first passes through the cleaning area 1. The hinge between the connecting rod 108 and the support 101 can rotate left and right. The rotation of the rotating shaft 103 can control the distance between the cleaning area 1 and the ground. First, the fan blows air, and the air is blown out from the air outlet 106. The air is polished and cleaned by a brush or a metal brush. Then, the dust is cleaned by the dust cover 107 of the vacuum cleaner. The metal brush 105 has a blowing part in front and a dust collecting part in the back. The entire cleaning area 1 is rotatable. When cleaning, the metal brush 105 touches the ground and is lifted up after cleaning.

[0067] The first heating zone 2 preliminarily heats the existing markings on the ground to soften them;

[0068] Then, the cylindrical burr roller 7 is used to pull the roughness, which makes it easier for the spreading area 3 to embed the material into the old marking line. Because the marking line material is relatively rough and cannot be completely cleaned, the burr roller 7 pulls the roughness, and the surface of the old marking line becomes uneven. The concave part can be filled with new material. The pulling operation makes the new material and the old material as close as possible.

[0069] The second heating zone 4 is the main heating zone, which melts all the materials.

[0070] Example 2

[0071] See also Figure 5 On the basis of Example 1, the difference from Example 1 is that a second electric push rod 16 is provided at the bottom of the frame 10, the fixed end of the second electric push rod 16 is fixedly connected to the bottom of the frame 10, and a third U-shaped bracket 17 is fixedly provided at the telescopic end of the second electric push rod 16, and the mold roller 5 is rotatably connected inside the third U-shaped bracket 17;

[0072] The mold roller 5 is set to be cylindrical, and the outer wall of the cylinder is provided with recesses 501. The recesses 501 are arranged along the radial circumference of the mold roller 5 and are spaced apart along the axial direction of the mold roller 5. The array distribution of the recesses forms a continuous groove, which can be used to make an oscillation mark.

[0073] Example 3

[0074] See also Figure 6 On the basis of Example 1, the difference from Example 1 is that a second electric push rod 16 is provided at the bottom of the frame 10, the fixed end of the second electric push rod 16 is fixedly connected to the bottom of the frame 10, and a third U-shaped bracket 17 is fixedly provided at the telescopic end of the second electric push rod 16, and the mold roller 5 is rotatably connected inside the third U-shaped bracket 17;

[0075] The outer surface of the mold roller 5 is set to a smooth plane. Ordinary plane markings can be made.

[0076] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A thermoplastic road marking refurbishment device, characterized in that: The machine frame (10) comprises a cleaning area (1) for cleaning, a first heating area (2) for preheating the roughening, a spreading area (3) for spreading the material, a second heating area (4) for reheating, and a mold roller (5) for shaping. A rubber pad partition (6) is provided between the cleaning area (1) and the first heating area (2); The second heating zone (4) is connected to the first heating zone (2), and both the second heating zone (4) and the first heating zone (2) are equipped with a heating rod, high-temperature heat-conducting oil, a safety valve and a circulation pump. The cavities of the second heating zone (4) and the first heating zone (2) are made of corrosion-resistant and high-temperature resistant materials, and the heating rod is provided with a temperature sensor and a temperature controller; An electric push rod (14) is provided between the first heating zone (2) and the spreading zone (3), the fixed end of the electric push rod (14) is fixedly connected to the bottom of the frame (10), and a U-shaped bracket (15) is fixedly provided at the telescopic end of the electric push rod (14), and a burr roller (7) for pulling the burrs is rotatably connected inside the U-shaped bracket (15); The material spreading area (3) includes a material storage barrel (301), and a material discharge port (302) is provided below the material storage barrel (301); A placement slot (303) is provided in the frame (10), the material storage barrel (301) is provided in the placement slot, and an upper cover (304) is provided on the top of the material storage barrel (301); The cleaning area (1) includes a support (101) arranged at the front end of the frame (10), a U-shaped bracket (102) is hinged on the support (101), a rotating shaft (103) is hinged between the U-shaped bracket (102), an arc-shaped cover (104) is arranged above the rotating shaft (103), a metal brush (105) for polishing is arranged inside the arc-shaped cover (104), a fan is arranged on the inner wall of the arc-shaped cover (104) in front of the metal brush (105), a plurality of evenly distributed air outlets (106) are arranged at the end of the fan, a dust collector is arranged on the inner wall of the arc-shaped cover (104) in front of the metal brush (105), and a dust hood (107) is arranged at the end of the dust collector; The top of the dust hood (107) is arranged tilted, and the opening direction of the dust hood (107) is arranged toward the metal brush (105); The support one (101) is symmetrically provided with two, and one end of the U-shaped bracket one (102) facing the support one (101) is provided with two connecting rods (108), and the connecting rods (108) are hinged to the support one (101); The hinged joint between the connecting rod (108) and the support (101) and the rotating shaft (103) are driven to rotate by respective motors, and the hinged joint between the connecting rod (108) and the support (101) and the motor of the rotating shaft (103) are electrically connected to a control center; It also includes an automatic line patrol system, the automatic line patrol system includes a sensor 1 (11), and the sensor 1 (11) is arranged in front of the outer wall of the arc-shaped cover (104); A second sensor (12) is provided in front of the first heating zone (2), and the second sensor (12) is electrically connected to the first heating zone (2); A sensor three (13) is provided in front of the material spreading area (3), and a plurality of closed ports are provided at the material discharge port (302) to be linked to the sensor three (13); The sensor 1 (11), sensor 2 (12), and sensor 3 (13) are all electrically connected to the control center; the sensor 1 (11), sensor 2 (12), and sensor 3 (13) are all AI visual sensors; The bottom of the frame (10) is provided with an electric push rod 2 (16), the fixed end of the electric push rod 2 (16) is fixedly connected to the bottom of the frame (10), the telescopic end of the electric push rod 2 (16) is fixedly provided with a U-shaped bracket 3 (17), and the mold roller (5) is rotatably connected inside the U-shaped bracket 3 (17); The outer wall of the mold roller (5) is provided with evenly distributed burrs (502); Alternatively, the mold roller (5) is configured to be cylindrical, and recesses (501) are provided on the outer wall of the cylinder. The recesses (501) are arranged in an array along the radial circumference of the mold roller (5), and the recesses (501) are spaced apart along the axial direction of the mold roller (5).

2. The thermoplastic road marking refurbishment device according to claim 1, characterized in that: A camera (8) is provided between the material spreading area (3) and the second heating area (4).

3. The thermoplastic road marking refurbishment device according to claim 1, characterized in that: A control panel (20) is disposed at the rear of the frame (10), and four wheels (30) are provided at the bottom of the frame (10), and the heights of the four wheels (30) are controlled by hydraulic pressure; Equipment covers are provided on all sides of the frame (10), maintenance space is reserved in the internal settings, and a traction mechanism is provided at the front end of the device.

4. The thermoplastic road marking refurbishment device according to claim 1, characterized in that: The bottom of the frame (10) is provided with an electric push rod 2 (16), the fixed end of the electric push rod 2 (16) is fixedly connected to the bottom of the frame (10), the telescopic end of the electric push rod 2 (16) is fixedly provided with a U-shaped bracket 3 (17), and the mold roller (5) is rotatably connected inside the U-shaped bracket 3 (17); The outer surface of the mold roller (5) is configured as a smooth plane.

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