Adjustable bead spreading structure based on electronic control system

Abstract

The present invention discloses an adjustable bead-scattering structure based on an electronic control system, which can realize a controllable spraying operation of reflective beads, thereby realizing the spraying of a quantitative amount of reflective beads in a designated area. The bead-scattering structure mainly includes a servo motor whose rotation speed is controlled by the electronic control system. The output shaft of the servo motor is connected to the main drum through a gear transmission system. The outer surface of the main drum is provided with a plurality of micro-holes distributed in an array. The upper half of the main drum is located inside the auxiliary feeding bin. The interior of the main drum is provided with an inner roller, and the main drum is driven to rotate by the gear transmission system. Compared with the existing device, this device controls the rotation speed of the main drum through a servo motor, thereby controlling the amount of reflective beads sprayed. At the same time, in view of the fact that reflective beads are small in size and easily adsorbed by electrostatics, a local high-pressure gas method is used to blow away the reflective beads that may be adsorbed on the surface of the micro-holes, so that the spraying amount of reflective beads can be more accurately controlled.

Description

Technical Field

[0001] The invention relates to an adjustable bead spreading structure based on an electric control system. Background Art

[0002] In order to regulate the driving of vehicles on the road in a more orderly manner, it is necessary to construct and draw indicator lines on the surface of various roads. For the drawing of road indicator lines, it is often necessary to melt the relevant materials on site and quickly apply the materials to the surface of the road while maintaining high temperature.

[0003] When coating the marking lines, in order to facilitate driving at night, a certain amount of reflective beads will be sprayed during the coating process of important marking lines to facilitate nighttime identification.

[0004] The amount of reflective beads applied and their uniformity determine the quality of nighttime markings. Existing reflective bead application rates are often fixed, unable to be adjusted based on the speed of the marking machine, and lack a controllable adjustment mechanism. This method initially met practical marking needs, but with the continued development of marking machines and the widespread use of large and medium-sized machines, their speeds have significantly increased. Consequently, different bead application speeds are urgently needed to accommodate both low- and high-speed driving conditions.

[0005] However, at present, there is no adjustable bead spreading mechanism to adapt to the development of road marking machines. Therefore, it is often seen that the reflective beads are unevenly sprayed on existing road marking lines, that is, a certain section of the line is more luminous, but the adjacent lines are basically non-reflective. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the existing defects and provide an adjustable bead spreading structure based on an electronic control system through multiple control methods.

[0007] An adjustable bead-spreading structure based on an electronic control system includes a servo motor whose speed is controlled by the electronic control system, the output shaft of the servo motor is connected to the main drum through a gear transmission system, the outer surface of the main drum is provided with a plurality of micropores distributed in an array, the upper half of the main drum is located inside the auxiliary feeding bin, an inner roller is provided inside the main drum, the main drum is driven to rotate by the gear transmission system, and the inner roller does not rotate at this time; the inner roller is an incomplete round roller, the top of the inner roller abuts against the inner wall of the main drum, the bottom of the inner roller is a hollow part, and a cavity is formed, and the cavity is filled with gas; the gas is filled in through the side pipe and discharged through the micropores on the surface of the main drum.

[0008] In order to ensure that all micropores can be filled with enough reflective beads during use, so as to realize the controllable and known number of reflective beads, when the main drum carries the reflective beads, the micropores are filled by touching the surface of the main drum. The specific structural basis is as follows:

[0009] The auxiliary feeding bin includes a first oblique plate and a second oblique plate which are arranged obliquely. The oblique plates are arranged obliquely inward. When the main drum rotates, it touches the first oblique plate and the second oblique plate in turn. A brush rack is provided on the inner wall of the second oblique plate, and a brush is provided at the end of the brush rack.

[0010] In actual use, the auxiliary feeding bin is often full. This phenomenon is mainly because the marking system at the bottom of the engineering marking vehicle is not working when it is driving or when marking is not required, so the servo motor is not working. At this time, there is a certain amount of residual phenomenon. In order to prevent the reflective beads from overflowing, the following structure is specifically set:

[0011] A negative pressure device is provided on the side of the auxiliary feeding bin, and the negative pressure device re-injects the reflective beads in the upper half of the auxiliary feeding bin into the main feeding bin through a pipeline.

[0012] In order to more conveniently control the rotation speed of the main drum, the gear transmission system includes a driving gear and a driven gear, the intermediate shaft of the driving gear is connected to the transmission shaft of the servo motor, and the central axis of the driven gear is connected to the side wall of the main drum.

[0013] Preferably, a main feeding silo is installed on top of the auxiliary feeding silo. A pressure sensor is installed inside the main feeding silo, and a main feeding pipe is connected to the top of the main feeding silo. The pressure sensor is used to monitor the number of reflective beads in the main feeding silo. When the number of reflective beads is too high, the pressure sensor is squeezed, thereby activating negative pressure adsorption to absorb excess reflective beads or suspending the feeding of the main feeding pipe above the main feeding silo.

[0014] Furthermore, in order to meet the requirements of use, the diameter of the micropores is 3-15 times the diameter of the reflective beads, and the depth of the micropores is 15-25 times the diameter of the reflective beads.

[0015] Beneficial effects:

[0016] Compared to existing devices, this device uses a servo motor to control the main drum speed, thereby controlling the amount of reflective beads sprayed. Furthermore, given that reflective beads are small and easily attracted by static electricity, local high-pressure gas is used to sweep away any beads that may be adsorbed on the microporous surface, allowing for more precise control of the reflective bead spray volume. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of an adjustable bead-spreading structure based on an electronic control system. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of an adjustable bead-spreading structure based on an electronic control system. Figure 2 ;

[0019] Figure 3 This is a schematic diagram of an adjustable bead-spreading structure based on an electronic control system. Figure 3 ;

[0020] Figure 4 This is a schematic diagram of an adjustable bead-spreading structure based on an electronic control system. Figure 4 ;

[0021] 1. Driving gear 2. Driven gear 3. Main feeding pipe 4. Main feeding silo 5. Auxiliary feeding silo 6. Negative pressure box 7. Negative pressure fan 8. Brush rack 81. Brush 9. Main roller 10. Inner roller DETAILED DESCRIPTION

[0022] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Example:

[0024] When marking a designated marking area with a marking machine, an adjustable reflective bead spreading structure is added to the bottom of the marking machine.

[0025] When the marking machine is moving at a high speed, a greater amount of reflective beads are needed. In this case, increasing the servo motor speed will increase the amount of reflective beads sprayed per unit time, thereby matching the faster speed of the marking machine. Conversely, when the marking machine is moving at a slow speed, the servo motor speed will be lowered to match the speed of the marking machine. This adjustment method can meet the marking speed requirements of different marking machines.

[0026] The specific adjustable bead spreading structure is as shown in the attached Figure 1-4 As shown, it includes a servo motor (not shown in the figure) whose speed is controlled by an electronic control system, and the output shaft of the servo motor (not shown in the figure) is connected to the main drum through a gear transmission system.

[0027] The transmission system includes a driving gear 1 and a driven gear 2. The intermediate shaft of the driving gear 1 is connected to the transmission shaft of the servo motor, and the central shaft of the driven gear 2 is connected to the side wall of the main drum.

[0028] A main feeding bin 4 is provided on the top of the auxiliary feeding bin 5 . A pressure sensor (not shown) is provided inside the main feeding bin 4 . A main feeding pipe 3 is connected to the top of the main feeding bin.

[0029] The auxiliary feeding bin 5 includes a first oblique plate and a second oblique plate which are arranged obliquely. The oblique plates are arranged obliquely inward. When the main drum rotates, it touches the first oblique plate and the second oblique plate in turn. A brush rack 8 is provided on the inner wall of the second oblique plate, and a brush 81 is provided at the end of the brush rack.

[0030] A negative pressure fan 7 is provided on the side of the auxiliary feeding bin, and the negative pressure fan 7 re-injects the reflective beads in the upper half of the auxiliary feeding bin 5 into the main feeding bin 4 through the pipeline.

[0031] The outer surface of the main drum is provided with a number of micro-holes distributed in an array. The upper half of the main drum is located inside the auxiliary feeding bin. An inner roller is provided inside the main drum. The main drum is driven to rotate by a gear transmission system, and the inner roller does not rotate at this time; the inner roller is an incomplete round roller, the top of the inner roller abuts against the inner wall of the main drum, and the bottom of the inner roller is a hollow part, forming a cavity, and the cavity is filled with gas; the gas is filled in through the side pipe and discharged through the micro-holes on the surface of the main drum.

[0032] In actual use, Figure 3 As shown in the figure, supported by the inner roller, when the main drum is transported to the upper part, the reflective beads fall into the micropores of the main drum. When the main drum rotates to the lower part, gas is filled in the cavity. Under the dual action of gas and the gravity of the reflective beads, the reflective beads will fall into the area to be marked, thus achieving the spraying of the reflective beads and preventing the reflective beads from falling to the ground due to electrostatic adsorption.

[0033] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. Adjustable bead spreading structure based on electronic control system, characterized by: The invention comprises a servo motor whose speed is controlled by an electronic control system. The output shaft of the servo motor is connected to the main drum through a gear transmission system. The outer surface of the main drum is provided with a plurality of micro-holes distributed in an array. The upper half of the main drum is located inside the auxiliary feeding bin. An inner roller is provided inside the main drum. The main drum is driven to rotate by the gear transmission system, while the inner roller does not rotate at this time. The inner roller is an incomplete circular roller. The top of the inner roller abuts against the inner wall of the main drum. The bottom of the inner roller is a hollow part, forming a cavity, which is filled with gas. The gas is filled in through a side pipe and discharged through the micro-holes on the surface of the main drum. The auxiliary feeding bin includes a first oblique plate and a second oblique plate, which are arranged obliquely. The oblique plates are arranged inwardly. When the main drum rotates, it touches the first oblique plate and the second oblique plate in sequence. A brush holder is provided on the inner wall of the second oblique plate, and a brush is provided at the end of the brush holder. A negative pressure device is provided on the side of the auxiliary feeding bin, and the negative pressure device re-injects the reflective beads in the upper half of the auxiliary feeding bin into the main feeding bin through a pipeline.

2. The adjustable bead spreading structure based on the electronic control system according to claim 1, characterized in that: The gear transmission system includes a driving gear and a driven gear. The intermediate shaft of the driving gear is connected to the transmission shaft of the servo motor, and the central shaft of the driven gear is connected to the side wall of the main drum.

3. The adjustable bead spreading structure based on the electronic control system according to claim 1, characterized in that: A main feeding bin is provided on the top of the auxiliary feeding bin, a pressure sensor is provided inside the main feeding bin, and a main feeding pipe is connected to the top of the main feeding bin.

4. The adjustable bead spreading structure based on the electronic control system according to claim 1, characterized in that: The aperture of the micropore is 3-15 times the diameter of the reflective bead, and the depth of the micropore is 15-25 times the diameter of the reflective bead.

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