leveling auxiliary device

Abstract

This invention relates to the field of waterproof coating sample leveling technology, specifically to a leveling auxiliary device. The leveling auxiliary device includes a laying device mold base, a scraping opening, a scraping plate, an elastic component, and a magnetic push component. The laying device mold base includes a rotating plate cavity and a return cavity. The scraping opening is located below the laying device mold base and communicates with the rotating plate cavity. The scraping plate is located on one side of the scraping opening. The elastic component is located on one side of the scraping plate. The magnetic push component is fixedly installed on the elastic component. When the scraping plate rotates to the scraping opening, the elastic component pushes the scraping plate out of the scraping opening, and the scraping plate carries the coating into the rotating plate cavity. When the scraping plate continues to rotate to the connection between the rotating plate cavity and the return cavity, the magnetic push component pushes the coating into the return cavity. The scraping plate can move coatings exceeding the thickness limit, thus controlling the coating thickness. Furthermore, the elastic component extends a certain length under the action of elastic force, thereby avoiding human error during manual operation.

Description

Technical Field

[0001] This invention relates to the field of waterproof coating sample leveling technology, specifically to a leveling auxiliary device. Background Technology

[0002] Non-curing rubber asphalt waterproof coatings are widely used in the field of building waterproofing. They have excellent adhesion, anti-aging and creep properties. When preparing non-curing rubber asphalt waterproof coatings, it is necessary to prepare them in advance and conduct performance tests on the prepared samples. By accurately evaluating the various performance indicators of the coating, a reliable basis can be provided for practical engineering applications.

[0003] Currently, when laying samples of non-curing rubber asphalt waterproof coatings, uneven thickness can occur due to varying operator skill levels and differences in holding and laying angles. Furthermore, since waterproof coatings are typically viscous, trailing can occur during the laying process, thus affecting the quality of the waterproof coating's application. Summary of the Invention

[0004] The present invention was made to solve the above-mentioned technical problems. Its purpose is to provide a paving auxiliary device that can control the thickness of waterproof materials such as non-curing rubber asphalt when paving them, and avoid the influence of human factors.

[0005] To achieve the above objectives, the present invention provides a paving auxiliary device, comprising: a paving device mold base, including a rotating plate cavity and a return material cavity, wherein a rotating column and a scraper are disposed in the rotating plate cavity, and the scraper rotates around the rotating column;

[0006] A coating opening is located below the mold base of the laying device and communicates with the rotating plate cavity; a coating plate is located on one side of the coating opening; an elastic component is located on one side of the coating plate; and a magnetic pusher component is fixedly installed on the elastic component. When the coating plate rotates to the coating opening, the elastic component pushes the coating plate out of the coating opening, and the coating plate carries the coating material into the rotating plate cavity. When the coating plate continues to rotate to the connection between the rotating plate cavity and the return cavity, the magnetic pusher component pushes the coating material into the return cavity.

[0007] Preferably, the elastic component includes a support housing, a support plate, and a support spring; the support housing is fixedly connected to the rotating column, the support plate is disposed inside the support housing near one end of the rotating column, and the support spring is connected to the scraper and the support plate.

[0008] Preferably, the magnetic pusher assembly includes an insulating housing, an insulating rod, a return spring, a pusher block, and a magnetic block; wherein the insulating rod and the return spring are disposed inside the insulating housing, the insulating rod is connected to one end of the return spring and the pusher block, and the magnetic block is disposed at the other end of the pusher block.

[0009] Preferably, the magnetic push assembly further includes a conductive ring and a conductive block, the conductive ring being slidably connected to the conductive block, and the insulating rod passing through the conductive ring and connected to the return spring.

[0010] Preferably, it further includes a driving component connected to the rotating column and driving the rotating column to rotate; a power supply component including an insulating disk and an insulating cover, the insulating disk rotating synchronously with the rotating column; a conductive strip is provided on the side wall of the insulating cover, and a conductive head corresponding to the scraper is provided on the insulating disk; the driving component drives the insulating disk to rotate, so that the conductive strip and the conductive head contact to supply power to the leveling auxiliary device.

[0011] Preferably, it further includes a controller, disposed on the laying device mold base and connected to the drive component and the power supply component; a trigger unit, connected to the controller, including an electromagnetic switch and a buzzer, wherein the electromagnetic switch is connected to the controller; when the conductive ring and the conductive block are in communication, they are in circuit communication with the electromagnetic switch.

[0012] Preferably, it further includes an electromagnetic plate disposed at the connection between the rotating plate cavity and the return material cavity; when the power supply component supplies power to the electromagnetic plate, the magnetic push component moves toward the electromagnetic plate.

[0013] Preferably, it further includes a feeding assembly disposed on the return chamber, including a sealing block and an electromagnetic push rod; the return chamber includes a discharge port, and the sealing block is detachably installed in the discharge port; the electromagnetic push rod drives the sealing block to detach from or install on the discharge port.

[0014] Preferably, it further includes a heating device disposed at the bottom of the return chamber, comprising a heat-conducting plate and an electric heater, wherein the heat-conducting plate is installed facing the interior of the return chamber.

[0015] Preferably, it also includes a feed inlet, which is disposed on the mold base of the laying device and connects to the outside and the return chamber.

[0016] Based on the above description and practice, the paving auxiliary device of the present invention includes a paving device mold base, a scraping opening, a scraping plate, an elastic component, and a magnetic pusher component. The paving device mold base includes a rotating plate cavity and a return cavity. A rotating column and a scraping plate are arranged in the rotating plate cavity. The scraping plate rotates around the rotating column, moving excess paint. The scraping opening is located below the paving device mold base and communicates with the rotating plate cavity. The scraping plate is located on one side of the scraping opening, cooperating with the scraping plate to send excess paint into the return cavity, preventing excess paint from remaining on the scraping plate or scraping plate and causing a trailing phenomenon on the paving surface. The elastic component is located on one side of the scraping plate. The magnetic pusher component is fixedly installed on the elastic component. When the scraper blade rotates to the scraping opening, the elastic component pushes the scraper blade out of the scraping opening. The scraper blade carries the paint into the rotating plate cavity. When the scraper blade continues to rotate to the connection between the rotating plate cavity and the return cavity, the magnetic push component pushes the paint into the return cavity. When the paint at the scraping opening is too thick, the scraper blade can move the paint that exceeds the thickness and cooperate with the scraper blade to send the excess paint into the return cavity, thus completing the control of the paint thickness. Moreover, the elastic component extends a certain length under the action of elastic force, thereby avoiding human error during manual operation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the paving aid device involved in one embodiment of the present invention.

[0018] Figure 2 This is a schematic diagram of the internal structure of a leveling auxiliary device according to one embodiment of the present invention.

[0019] Figure 3 This is a schematic diagram of the structure of the elastic component of the leveling aid device according to one embodiment of the present invention.

[0020] Figure 4 For the present invention Figure 3 A magnified structural diagram of part A in the middle.

[0021] Figure 5 This is a schematic diagram of the material return chamber of a leveling auxiliary device according to one embodiment of the present invention.

[0022] Figure 6 For the present invention Figure 1 A magnified structural diagram of section B.

[0023] Figure 7 This is a schematic diagram of the power supply component of a leveling auxiliary device according to one embodiment of the present invention. Detailed Implementation

[0024] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be more thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0025] Furthermore, the accompanying drawings are merely illustrative diagrams of the present invention and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and therefore repeated descriptions of them will be omitted. It should be noted that in this invention disclosure, the terms "comprising," "configured with," and "set in" are used to indicate an open-ended inclusion, meaning that additional elements / components / etc. may exist besides those listed; the terms "first," "second," etc., are used only as labels and are not intended to limit the number or order of objects; the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention.

[0026] Unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. 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 the internal connection between two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0027] This invention discloses a leveling auxiliary device, please refer to... Figures 1 to 7The paving auxiliary device includes a paving device mold base 1, a scraping opening 4, a scraping plate 5, an elastic component 9, and a magnetic pusher component 11. The paving device mold base 1 includes a rotating plate cavity 3 and a return cavity 10. A rotating column 6 and a scraper 8 are arranged in the rotating plate cavity 3. The scraper 8 rotates around the rotating column 6, moving excess paint. The scraping opening 4 is located below the paving device mold base 1 and communicates with the rotating plate cavity 3. The scraper 5 is located on one side of the scraping opening 4, cooperating with the scraper 8 to send excess paint into the return cavity 10, preventing excess paint from remaining on the scraper 8 or scraper 5 and causing a trailing phenomenon on the paving surface. The elastic component 9 is located on one side of the scraper 5. The magnetic pusher component 11 is fixedly installed on the elastic component 9. When the scraper plate 8 rotates to the scraping opening 4, the elastic component 9 pushes the scraper plate 8 to extend out of the scraping opening 4. The scraper plate 8 carries the paint into the rotating plate cavity 3. When the scraper plate 8 continues to rotate to the connection between the rotating plate cavity 3 and the return cavity 10, the magnetic push component 11 pushes the paint into the return cavity 10. When the paint at the scraping opening 4 is too thick, the scraper plate 8 can move the paint that exceeds the thickness and cooperate with the scraper plate 5 to send the excess paint into the return cavity 10, thus completing the control of the paint thickness. Moreover, the elastic component 9 extends a certain length under the action of elastic force, thereby avoiding human error during manual operation.

[0028] Understandably, the width of the paint spread should be less than the width of the squeegee 5, that is, the squeegee 5 can completely spread the paint in the width direction during the movement, so as to ensure the thickness control of the paint under this width and avoid paint waste at the edges.

[0029] In some embodiments, the elastic component 9 includes a support housing 91, a support plate 92, and a support spring 93, with the support spring 93 disposed within the support housing 91. The support housing 91 is fixedly connected to the rotating column 6 and can rotate with the rotation of the rotating column 6. The support plate 92 is disposed within the support housing 91 near one end of the rotating column 6, and the support spring 93 is connected to the scraper plate 8 and the support plate 92. When the scraper plate 8 is in the rotating plate cavity 3, the scraper plate 8 and the support plate 92 work together to compress the support spring 93. When the scraper plate 8 and the support housing 91 rotate with the rotating column 6 to the scraping outlet, the support spring 93 recovers its deformation and generates a force, pushing the scraper plate 8 out of the scraping opening 4 and abutting against the paint surface. The scraper plate 8 continues to rotate with the rotating column 6 until it rotates to the edge of the rotating plate cavity 3 and engages with the scraper plate 5, carrying excess paint into the rotating plate cavity 3 and subsequently storing it in the return chamber 10.

[0030] In order to feed the coating on the scraper 8 into the return chamber 10, when the scraper 8 rotates with the rotating column 6 to the vicinity of the return chamber 10, the magnetic push assembly 11 pushes the coating into the return chamber 10. Specifically, in some embodiments, the leveling auxiliary device includes an electromagnetic plate 111, which is disposed at the connection between the rotating plate chamber 3 and the return chamber 10. The magnetic push assembly 11 includes an insulating shell 113, an insulating rod 114, a return spring 115, a pusher block 116, and a magnetic block 117. The insulating rod 114 and the return spring 115 are disposed inside the insulating housing 113. The insulating rod 114 is connected to one end of the return spring 115 and the pusher block 116. The magnetic block 117 is disposed at the other end of the pusher block 116, and the lower part of the pusher block 116 abuts against the scraper plate 8. When the scraper plate 8 rotates to the vicinity of the return chamber 10, the electromagnetic plate 111 attracts the magnetic block 117, thereby driving the magnetic block 117, the pusher block 116 and the insulating rod 114 to move together toward the return chamber 10, thereby pushing the paint on the scraper plate 8 and sending it into the return chamber 10, completing the recycling of the paint. This ensures that after the scraper plate 8 completes one scraping, there is no excess paint on the scraper plate 8, thus avoiding the tailing phenomenon when the scraper plate 8 scrapes again, which affects the smoothing effect of the paint.

[0031] Furthermore, in some embodiments, the magnetic push assembly 11 further includes a conductive ring 124 and a conductive block 123. The conductive ring 124 is slidably connected to the conductive block 123, and the insulating rod 114 passes through the conductive ring 124 and is connected to the return spring 115. The conductive ring 124 and the conductive block 123 are electrically connected to the laying device mold base 1 and form a circuit. Under some conditions, the thickness of the laying coating can be determined by the distance between the contact position of the conductive ring 124 and the conductive block 123 and the rotating column 6.

[0032] In some embodiments, the magnetic thrust assembly 11 further includes two support blocks 112, which are respectively fixedly connected to the two ends of the support housing 91. The support blocks 112 are fixedly inserted into the insulating housing 113, so as to fix the magnetic thrust assembly 11 on the elastic component 9.

[0033] Understandably, in some embodiments, the leveling aid further includes a drive unit 7 and a power supply assembly 16. The drive unit 7 is connected to the rotating column 6 and drives the rotating column 6 to rotate, thereby driving multiple scraper blades 8 to rotate, achieving leveling of the coating. The power supply assembly 16 includes an insulating disk 163 and an insulating cover 161. The insulating disk 163 rotates synchronously with the rotating column 6 to be electrically connected in real time to multiple magnetic pusher assemblies 11 in the rotating plate cavity 3. Conductive strips 162 are provided on the side wall of the insulating cover 161, and conductive heads 165 corresponding to the scraper blades 8 are provided on the insulating disk 163. The drive unit 7 drives the insulating disk 163 to rotate, so that the conductive strips 162 and conductive heads 165 contact to supply power to the leveling aid. When the thickness of the coating exceeds the preset thickness, the scraper 8 drives the coating into the rotating plate cavity 3. When the scraper 8 rotates to the vicinity of the return cavity 10, the electromagnetic plate 111 is energized to attract the magnetic block 117 to move close to the electromagnetic plate 111, thereby sending the excess coating on the scraper 8 into the return cavity 10.

[0034] Understandably, the insulating disk 163 has multiple insulating posts 164 arranged circumferentially, and the conductive head 165 is arranged on the insulating post 164. Increasing the length of the conductive head 165 allows the conductive strip 162 to be arranged more freely inside the insulating cover 161, avoiding the conductive strip 162 being placed too close to the outside, which would make it easy to wear or be affected by other electronic components.

[0035] Since the coating may experience depressions due to insufficient thickness during leveling, in some embodiments, the leveling auxiliary device also includes a controller 2 and a trigger unit 12. The controller 2 is mounted on the laying device mold base 1 and is used to control the opening or closing of the leveling auxiliary device. The controller 2 is connected to the drive component 7 and the power supply component 16. The trigger unit 12 is connected to the controller 2 and includes an electromagnetic switch 121 and a buzzer 122. The electromagnetic switch 121 is connected to the controller 2, and the buzzer 122 is used to remind the operator when necessary. When the conductive ring 124 and the conductive block 123 are connected, they are connected to the electromagnetic switch 121 circuit. When the scraper 8 scrapes over the locally depressed position, the amount of coating scraped by the scraper 5 decreases. When the scraper 8 moves to the position of the opening of the return chamber 10, the conductive head 165 corresponding to the scraper 8 will slide into contact with the conductive strip 162. At this time, each conductive ring 124 and conductive block 123 at the scraper 8 is connected to the electromagnetic switch 121 through the connection circuit of the conductive strip 162, the conductive head 165, and the electromagnetic switch 121. Furthermore, when moving to the recessed area, the distance between the contact point of the conductive ring 124 and the conductive block 123 and the rotating column 6 is too large. At this time, the length of the connection circuit between the conductive block 123 and the conductive ring 124, the conductive strip 162, the conductive head 165 and the electromagnetic switch 121 becomes shorter. Therefore, the current flowing into the electromagnetic switch 121 increases, causing the moving contact of the electromagnetic switch 121 to magnetically close. After the controller 2 receives the closing electrical signal of the electromagnetic switch 121, it will control the buzzer 122 to work immediately to remind the personnel that there is a defect in the position. Subsequently, the staff should immediately stop moving the laying device formwork 1.

[0036] Understandably, when spreading the coating, the thickness in various places cannot be accurately controlled during the rough spreading process, which may result in many depressions. At this time, the recycled coating in the return chamber 10 can be used to replenish the depressions. In some embodiments, the leveling auxiliary device also includes a replenishing component 13, which is set on the return chamber 10 and includes a sealing block 132 and an electromagnetic push rod 133. The return chamber 10 includes a discharge port 131. The sealing block 132 is detachably installed in the discharge port 131 to deliver the coating in the return chamber 10 to the depressions, and the scraper 8 can be used to level them again. The electromagnetic push rod 133 drives the sealing block 132 to detach from or install in the discharge port 131, and the coating can be started or stopped as needed.

[0037] Furthermore, in some embodiments, the feeding assembly 13 further includes a connecting rod 134, the two ends of which are connected to the electromagnetic push rod 133 and the sealing block 132 respectively, increasing the length of the entire feeding assembly 13, thereby increasing the settable height of the return chamber 10 and increasing the moving distance of the sealing block 132, thus increasing its feeding rate.

[0038] Since the time the waterproof coating in the return chamber 10 is uncertain, in order to ensure that the coating in the return chamber 10 still has good fluidity when encountering depressions and needs to be replenished, and flows smoothly out from the outlet 131, in some embodiments, the leveling auxiliary device also includes a heating device. The heating device is set at the bottom of the return chamber 10 and includes a heat-conducting plate 19 and an electric heater 18. The heat-conducting plate 19 is installed facing the inside of the return chamber 10. The inner wall of the return chamber 10 is also provided with an installation groove 17, and the electric heater 18 is installed in the installation groove 17. The electric heater 18 is turned on as needed to heat the coating in the return chamber 10. In addition, the temperature of the electric heater 18 should not be overheated, and should be adjusted according to the material and properties of the actual coating to avoid overheating that would cause a decrease in the performance or damage to the coating.

[0039] Understandably, when the paint content is low during rough spreading, the replenishing component 13 needs to be opened multiple times to replenish the paint on the spreading surface when the spreading auxiliary device is leveling the spreading surface. At this time, the recovered paint in the return chamber 10 is insufficient to fill the depressions. In some embodiments, the spreading auxiliary device also includes a feed port, which is set on the spreading device mold base 1 and connects to the outside and the return chamber 10. It can replenish the paint when the paint in the return chamber 10 is insufficient, so as to avoid the situation that the paint in the return chamber 10 is insufficient and cannot be filled when encountering depressions again.

[0040] In some embodiments, the leveling auxiliary device further includes rollers 14, which are respectively disposed at both ends of the lower housing of the leveling device mold base 1. The leveling device mold base 1 is provided with a mounting plate (not shown), and the bottom of the mounting plate is provided with a mounting groove 17 (not shown). The rollers 14 are installed in the mounting groove 17, so that the leveling auxiliary device can move more easily and smoothly on the paint leveling working surface, further ensuring the contact effect between the scraper 8 and the paint, and making the leveling effect better.

[0041] Furthermore, in actual operation, due to the different leveling requirements and properties of various waterproof coatings, the required thickness of the waterproof coating also varies. In some embodiments, the leveling auxiliary device further includes an adjustment component 15, which is set on the side wall of the laying device mold base 1 and connected to the roller 14 to adjust the distance between the roller 14 and the leveling working surface. The adjustment component 15 includes a threaded post 151 fixedly installed on the outer side wall of the laying device mold base 1. The side wall of the roller 14 has a slotted hole 152 matching the threaded post 151, located above the mounting groove 17. The threaded post 151 is threadedly connected to a crimp nut 153, and the side wall of the crimp nut 153 abuts against the side wall of the roller 14. Through the slotted hole 152 on the roller 14, the height of the roller 14 can be adjusted, thereby controlling and ensuring the uniform thickness of the waterproof coating and expanding the applicable scenarios of the leveling auxiliary device.

[0042] In summary, when using the leveling auxiliary device proposed in this invention, the operator adjusts the height of the roller 14 and the adjusting device according to the required thickness of the waterproof material, and tightens it using the crimp nut 153 to ensure that the waterproof coating achieves a consistent thickness after spreading. At the start of work, the operator activates the controller 2 on the leveling auxiliary device and pushes the entire device forward. The controller 2 energizes the electromagnetic plate 111 and the drive component 7. The drive component 7 drives the rotating column 6 and the insulating disc 163 to rotate synchronously and drives the scraper 8 to rotate at a uniform speed. At this time, the conductive head 165 on the insulating disc 163 slides into contact with the conductive strip 162 on the insulating shell 113, forming a circuit together with the electromagnetic switch 121. When the scraper plate 8 rotates to the scraping opening 4, the scraper plate 8 is no longer blocked by the inner wall of the rotating plate cavity 3. The support spring 93 restores its deformation and pushes the scraper plate 8 partially out of the rotating plate cavity 3 and into contact with the paint. The rotating column 6 continues to rotate and scrapes the paint that exceeds the predetermined thickness. Together with the scraper plate 5, it transports the excess paint into the rotating plate cavity 3. When the scraper plate 8 continues to rotate until it approaches the return cavity 10, the electromagnetic plate 111 is energized. The magnetic attraction force generated by the electromagnetic plate 111 has an attractive effect on the magnetic block 117, thereby driving the pusher block 116 to move towards the electromagnetic plate 111. The pusher block 116 pushes the paint on the scraper plate 8 into the return cavity 10.

[0043] When a depression appears on the paving surface, there is less paint on the scraper 8, and the resistance to the movement of the pusher block 116 on the scraper 8 is small. At this time, the distance between the contact point of the conductive ring 124 and the conductive block 123 and the rotating column 6 is larger. Therefore, the thickness of the scraped material is larger than that scraped by the scraper 8. The current in the circuit formed by the conductive head 165, the conductive strip 162 and the electromagnetic switch 121 increases, and the magnetic attraction force increases, closing the electromagnetic switch 121. The controller 2 responds to the closing signal of the electromagnetic switch 121, controls the buzzer 122 to work, reminding the operator to stop moving. At the same time, the controller 2 controls the electromagnetic push rod 133 to work, pushing the sealing block 132 closer to the paving surface, opening the outlet 131 to allow the paint in the return chamber 10 to fall. After the paint falls, the electromagnetic push rod 133 moves upward and the buzzer 122 stops working. The operator pushes the entire paving auxiliary device to pave the depression again, ensuring that the thickness of the depression can reach the same thickness requirement.

[0044] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A trowel assist device for troweling a coating material, characterized in that, The application relates to a paving device die base, which comprises a rotating plate cavity and a material returning cavity, a rotating column is arranged in the rotating plate cavity, a material scraping plate is arranged around the rotating column, an installation groove is arranged below the material scraping plate, a roller is arranged in the installation groove, a scraping opening is arranged below the paving device die base and communicates with the rotating plate cavity, a scraping plate is arranged on one side of the scraping opening, an elastic component is arranged on one side of the scraping plate, a magnetic pushing component is fixedly arranged on the elastic component, an adjusting component is arranged on the side wall of the paving device die base and is connected with the roller to adjust the distance between the roller and a paving work surface, when the material scraping plate rotates to the scraping opening, the elastic component pushes the material scraping plate to extend out of the scraping opening, the material scraping plate drives paint into the rotating plate cavity, when the material scraping plate continuously rotates to the joint of the rotating plate cavity and the material returning cavity, the magnetic pushing component pushes the paint into the material returning cavity, the elastic component comprises a supporting shell, a supporting plate and a supporting spring, the supporting shell is fixedly connected with the rotating column, the supporting plate is arranged in the supporting shell and is close to one end of the rotating column, the supporting spring is connected with the material scraping plate and the supporting plate, the magnetic pushing component comprises an insulating shell, an insulating rod, a reset spring, a material pushing block, a magnetic block and a supporting block, the insulating rod and the reset spring are arranged in the insulating shell, the insulating rod is connected with one end of the reset spring and one end of the material pushing block, the magnetic block is arranged on the other end of the material pushing block, the two supporting blocks are fixedly arranged on the two ends of the supporting shell, the supporting blocks are fixedly inserted into the insulating shell to fix the magnetic pushing component on the elastic component, the magnetic pushing component further comprises a conductive ring and a conductive block, the conductive ring is slidably connected with the conductive block, and the insulating rod passes through the conductive ring and is connected with the reset spring, the adjusting component comprises a threaded column which is fixedly arranged on the outer side wall of the paving device die base, a strip-shaped hole which is matched with the threaded column is arranged in the side wall of the roller, the strip-shaped hole is arranged above the installation groove, a press nut is threadedly connected with the threaded column, and the side wall of the press nut is abutted against the side wall of the roller. Further comprising: a driving piece connected with the rotating column and driving the rotating column to rotate; a power supply component comprising an insulating disc and an insulating cover, the insulating disc rotates synchronously with the rotating column; a conductive strip is arranged on the side wall of the insulating cover, a conductive head corresponding to the material scraping plate is arranged on the insulating disc, the driving piece drives the insulating disc to rotate, so that the conductive strip and the conductive head are in contact to supply power to the paving auxiliary device. Further comprising: a controller arranged on the paving device die base and connected with the driving piece and the power supply component; a triggering unit connected with the controller and comprising an electromagnetic switch and a buzzer, the electromagnetic switch is connected with the controller; the conductive ring and the conductive block are in communication with the electromagnetic switch loop. Further comprising: an electromagnetic plate arranged at the joint of the rotating plate cavity and the material returning cavity; ​ 2. The flattening aid of claim 1, wherein ​ ​ ​ ​ 3. The lay-flat assist of claim 2, wherein, ​ ​ ​ ​ 4. The flattening aid of claim 2, wherein, ​ ​ When the power supply assembly supplies power to the electromagnetic plate, the magnetic pushing assembly moves in the direction close to the electromagnetic plate.

5. The flattening aid of claim 1, wherein, Further comprising: A feeding assembly arranged on the material returning cavity, comprising a material sealing block and an electromagnetic push rod. The material returning cavity comprises a material outlet, and the material sealing block is detachably installed in the material outlet. The electromagnetic push rod drives the material sealing block to be separated from or installed in the material outlet.

6. The lay-flat assist of claim 5, wherein, Further comprising: A heating device arranged at the bottom of the material returning cavity, comprising a heat conducting plate and an electric heater, and the heat conducting plate is installed towards the inside of the material returning cavity.

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