Prefabricated plate forming and leveling equipment and leveling method thereof

Abstract

A prefabricated plate forming leveling device and a leveling method thereof, comprising a frame and a moving unit on the upper side thereof, the moving unit comprising first-level, second-level and third-level leveling rollers arranged in parallel horizontally and transversely, and first and second power sources for driving the first-level and second-level leveling rollers to rotate respectively, the first-level leveling roller comprising two mounting plates arranged opposite to each other, a plurality of extrusion rods arranged in a circumferential array between the two mounting plates, the plane where the extrusion rods are located coincides with the rotating shaft of the first-level leveling roller, the extrusion rods comprising an arc-shaped inner concave portion protruding toward the rotating shaft of the first-level leveling roller, and an arc-shaped outer convex portion protruding away from the rotating shaft of the first-level leveling roller, in the rotating direction of the first-level leveling roller, the outer convex portions and the inner concave portions of two adjacent extrusion rods are located in corresponding positions, the second-level leveling roller comprising a main shaft and a beating rod spirally arranged on its outer ring, a plurality of beating rods are arranged circumferentially around the outer ring of the main shaft, and the third-level leveling roller is a smooth columnar structure. The equipment adopts multi-stage leveling to ensure the consistency and overall quality of leveling and improve production efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of building board production equipment, and in particular to a prefabricated board forming and leveling equipment and a leveling method thereof. Background Art

[0002] Asbestos cement board is a high-performance building material that combines high-grade cement and natural asbestos fiber. Its production process includes injecting pre-mixed slurry into the mold and curing it to form a prefabricated board. During the process of injecting the slurry into the mold, if the surface is uneven, it will directly affect the quality of the final product. Therefore, after the slurry is injected into the mold, the mud on the surface of the prefabricated board needs to be leveled, and this process is also a key step in the production process.

[0003] In the traditional leveling method, the leveling process mainly relies on two workers to lift a flat plate and move it horizontally. In order to prevent the one-time leveling from causing a rough surface, the workers will first use a shovel to shovel the slurry from the larger raised positions, and then fill it in the deeper recesses. Subsequently, the flat plate is used for meticulous manual leveling. Deviations are inevitable in the manual leveling process, which is not only inefficient, but also difficult to ensure the consistency of the surface leveling of the prefabricated panels after leveling, resulting in poor overall quality.

[0004] The leveling equipment that appeared later includes a horizontal moving mechanism and a flat plate that are arranged on both sides of the width direction of the mold. The horizontal moving mechanism drives the flat plate to move horizontally along the length direction of the mold to complete the leveling work. Although this mechanized leveling improves efficiency compared to manual work, when the flat plate of the equipment pushes the mud at the raised position along the length direction, it can only fill the recessed position in the same length direction, or fill the recessed parts around the recessed position in the length direction. It is difficult to fill the recessed parts that are far apart in the width direction. Therefore, it is difficult for the leveling equipment to level the upper surface of the prefabricated board evenly, resulting in the consistency and overall quality of the upper surface of the prefabricated board still being unsatisfactory. At the same time, in order to avoid the rough surface caused by one-time leveling, the flat plate needs to be leveled multiple times, and the height of multiple leveling needs to be adjusted, resulting in the cumbersome production process and relatively low efficiency. Summary of the invention

[0005] In order to solve the technical problems existing in the above-mentioned background technology that the consistency and overall quality of the upper surface leveling of the prefabricated board are poor, and the production process is complicated and inefficient, the present invention provides a prefabricated board forming and leveling equipment and a leveling method thereof.

[0006] The technical solution of the present invention is as follows:

[0007] A prefabricated plate forming and leveling device comprises a frame and a moving unit arranged on its upper side, and the moving unit is arranged to be able to level the upper surface of the prefabricated plate, the moving unit comprises a moving frame and a driving machine which is transmission-connected with the moving frame and can drive the moving frame to move along the frame, and a leveling component is also arranged transversely on the moving frame;

[0008] The leveling assembly includes a primary leveling roller, a secondary leveling roller and a tertiary leveling roller which are arranged horizontally and in parallel, and a first power source and a second power source which respectively drive the primary leveling roller and the secondary leveling roller to rotate, wherein the tertiary leveling roller is rotatably connected with the moving frame. When in use, the driving machine drives the moving frame to move along the frame, and at the same time, the primary leveling roller and the secondary leveling roller are respectively driven to rotate by the first power source and the second power source. At this time, the primary leveling roller, the secondary leveling roller and the tertiary leveling roller rotate on the upper surface of the prefabricated plate, and realize the preliminary leveling, the initial smoothing and the fine smoothing of the upper surface of the prefabricated plate in the process of rotation, and finally obtain a surface with good consistency and high overall quality;

[0009] The core technical concept of the present invention is:

[0010] The primary leveling roller comprises two mounting plates arranged opposite to each other, and a plurality of extrusion rods are arranged in a circumferential array between the two mounting plates. The extrusion rods are wave-shaped rods, and the plane where the extrusion rods are located coincides with the rotating shaft of the primary leveling roller. The extrusion rods comprise an arc-shaped inner concave portion protruding toward the rotating shaft of the primary leveling roller, and an arc-shaped outer convex portion protruding away from the rotating shaft of the primary leveling roller. In the rotating direction of the primary leveling roller, the outer convex portion and the inner concave portion of two adjacent extrusion rods are located at positions corresponding to each other. When the primary leveling roller rotates, the plurality of extrusion rods apply pressure to the slurry on the upper surface of the prefabricated plate. Since the extrusion rods are wave-shaped, the outer convex portion first contacts the slurry, applies pressure to the slurry, and effectively pushes the slurry smoothly into the adjacent inner concave portion. The first-level leveling roller is used to push the slurry from the upper surface of the prefabricated board to the lower surface, thereby forming a series of relatively regular pits on the surface of the prefabricated board. With the continuous rotation of the first-level leveling roller, the outer convex part of the extrusion rod not only forms pits, but also plays a role in squeezing the slurry at the raised position on the upper surface of the prefabricated board to below the raised position. In this process, the raised slurry is pushed to the low-lying area next to it, realizing the redistribution of the slurry. This operation not only helps to make the surface of the prefabricated board smoother, but also improves the overall density of the prefabricated board. After being processed by the first-level leveling roller, the upper surface of the prefabricated board is initially smoothed, and the original concave and convex parts are effectively eliminated or reduced, which provides convenience for the subsequent leveling process.

[0011] The secondary leveling roller includes a main shaft and a beating rod spirally arranged on its outer ring, and a plurality of beating rods are arranged around the outer ring of the main shaft. When the secondary leveling roller rotates, the plurality of beating rods push the slurry remaining in the raised position on the upper surface of the prefabricated plate to a lower position during the rotation process. Since the beating rods are evenly arranged on the main shaft, these beating rods can continuously and evenly apply pressure to the slurry to ensure that the raised part of the slurry is effectively pushed to the adjacent concave position. After being processed by the secondary leveling roller, the upper surface of the prefabricated plate is further leveled, the pits formed by the primary leveling roller are initially smoothed, and the raised slurry is redistributed again, laying a solid foundation for the final fine smoothing process.

[0012] The three-stage leveling roller is a smooth columnar structure, which contacts the upper surface of the precast plate evenly with a certain pressure. Due to its smooth outer surface, when it moves and level the upper surface of the precast plate, it can effectively level out the tiny unevenness after being processed by the first and second leveling rollers. Therefore, the surface leveled by the three leveling rollers in succession not only has good consistency but also high overall quality.

[0013] Compared with the method of manually leveling by lifting a flat plate or leveling a flat plate through a horizontal moving mechanism, the present invention does not simply level the upper surface of the prefabricated board, but adopts multi-stage leveling. Three leveling rollers with different structures are used to perform three different levels of leveling, namely preliminary leveling, initial leveling and fine leveling, on the upper surface of the prefabricated board in turn, and the slurry is redistributed during the leveling process. Finally, after the three leveling rollers work closely together to level, a surface with good consistency and high overall quality is obtained. At the same time, before starting the leveling work, the three leveling rollers of the present invention adjust the height of the horizontal plane according to the height of the upper surface of the prefabricated board. There is no need to repeatedly adjust the height during the entire leveling process, and the three leveling rollers can move with the mobile frame to continuously perform three different degrees of leveling operations on the entire upper surface of the prefabricated board, which significantly improves work efficiency.

[0014] As a preferred implementation method, several extrusion rods have the same specifications, and the outer protrusions and inner recesses on the extrusion rods have the same specifications, so that when the first-level leveling roller rotates on the upper surface of the prefabricated board, the pressure applied to the mud on the upper surface of the prefabricated board is more uniform. This uniform pressure helps to avoid the problem of uneven surface caused by uneven pressure, and ensures the overall flatness of the initial leveling of the upper surface of the prefabricated board; at the same time, the cross-sectional shapes of the outer protrusions and inner recesses on the extrusion rods are both circular, so that no large indentations will appear when extruding the upper surface of the prefabricated board, thereby ensuring the smoothness of the extruded surface, and the circular structure of the extrusion rod is convenient for processing and subsequent cleaning.

[0015] Furthermore, the side surface of the beating rod away from the main axis is an arc-shaped end surface convex outward, and no large indentation will appear when beating the upper surface of the prefabricated plate, thereby ensuring the smoothness of the beating surface.

[0016] In the prefabricated plate forming and leveling device as described above, two guide rails are arranged in parallel on the upper side of the frame, and rollers that are in rolling contact with the guide rails are also arranged on the moving frame.

[0017] To improve the convenience of operation, the middle part of the upper side of the frame is the leveling part. An opening is provided on one side of the frame located at the leveling part, in which a material receiving box is provided. The vertical projections of the three leveling rollers can all fall into the material receiving box. The three leveling rollers can not only perform leveling work but also push excess slurry along the upper surface of the prefabricated board during the movement of the mobile frame. Finally, when it moves to the position of the material receiving box, the slurry is pushed into the material receiving box for collection and next use.

[0018] Furthermore, material receiving boxes are provided on both sides of the leveling part, and a reversing unit capable of reversing the moving unit is respectively provided on the side of the two material receiving boxes facing away from the leveling part. The three leveling rollers perform the leveling work in sequence. Through the set reversing unit, the upper surface of the prefabricated plate can be leveled from two directions, thereby improving the operational convenience and work efficiency.

[0019] In order to improve the leveling quality, a cleaning device is also provided on the side of the reversing unit away from the material receiving box. The first-level leveling roller is connected to the movable frame through a flipping device, and is configured to be able to move toward the cleaning device through the flipping device, and is configured to be able to be cleaned under the action of the cleaning device. Since the extrusion rod of the first-level leveling roller is designed as a wave rod structure, the cleaning device here can use a variety of cleaning devices with different structures in the prior art to complete the cleaning, for example, a high-pressure spray cleaning device, which washes away the mud adhered to the first-level leveling roller through high-pressure spraying, thereby improving the leveling quality of the first-level leveling roller.

[0020] Furthermore, a scraper device is provided on the upper side of the secondary leveling roller and the tertiary leveling roller, and the scraper device is configured to scrape off the mud adhered to the secondary leveling roller and the tertiary leveling roller, thereby improving the leveling quality of the secondary leveling roller and the tertiary leveling roller.

[0021] Preferably, the working parts of the three leveling rollers used for leveling have the same diameter and length.

[0022] The present invention also provides a prefabricated plate forming and leveling method, using the above-mentioned prefabricated plate forming and leveling equipment, and the specific leveling steps are:

[0023] S1, controlling the driving machine to move, the moving frame is with the first-level leveling roller in front and moves along the frame at a first preset linear speed;

[0024] S2: Start leveling work;

[0025] The first power source is controlled to drive the first-level leveling roller to rotate at a second preset linear speed, the second power source is controlled to drive the second-level leveling roller to rotate at a third preset linear speed, and the third-level leveling roller moves horizontally with the moving frame at the first preset linear speed;

[0026] First, the slurry on the upper surface of the prefabricated board is squeezed by several squeezing rods of the first-level leveling roller, and pits are left in the squeezing process. At the same time, the slurry on the raised position on the upper surface of the prefabricated board is squeezed to a position lower than the raised position;

[0027] Then, the holes on the upper surface of the prefabricated board are initially smoothed by a plurality of beating rods of the secondary leveling roller, and at the same time, the slurry on the raised position on the upper surface of the prefabricated board is further squeezed to a position below the raised position;

[0028] Finally, the upper surface of the prefabricated board is leveled by three-stage leveling rollers.

[0029] Furthermore, in step S2, the third preset linear speed is equal to the first preset linear speed, so as to avoid the problem of missed smoothing or uneven smoothing caused by speed difference, and ensure that the smoothing effect of the beating rod on the upper surface of the precast board is more uniform and continuous, thereby improving the effect of the initial smoothing, and the second preset linear speed is greater than the third preset linear speed, so that the squeezing action of the first-level leveling roller on the upper surface of the precast board is more frequent. This high-frequency squeezing promotes the redistribution of the slurry, and can greatly reduce the unevenness on the upper surface of the precast board. The rapid squeezing of the first-level leveling roller and the uniform smoothing of the second-level leveling roller are jointly improved, and at the same time, the foundation is laid for the subsequent fine smoothing process of the third-level leveling roller.

[0030] Preferably, the second preset linear speed is twice the third preset linear speed.

[0031] The beneficial effect of the prefabricated plate forming and leveling equipment of the present invention is that it adopts multi-stage leveling and uses three leveling rollers with different structures to continuously perform extrusion leveling, preliminary leveling and fine leveling on the upper surface of the prefabricated plate in sequence, thereby ensuring the consistency and overall quality of the leveling of the upper surface of the prefabricated plate and improving production efficiency, solving the problems of cumbersome leveling operations using a flat plate for multiple times and difficulty in ensuring leveling consistency, and is suitable for occasions that have high requirements on leveling consistency and overall leveling quality and efficiency. At the same time, there is no need to adjust the height of each leveling roller multiple times during the leveling process, thereby further improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In the attached picture:

[0033] Figure 1 This is a structural schematic diagram of a prefabricated plate forming and leveling device for this application;

[0034] Figure 2for Figure 1 A front view of

[0035] Figure 3 for Figure 1 A top view of

[0036] Figure 4 It is a schematic diagram of the structure of the mobile unit in this application;

[0037] Figure 5 for Figure 4 Schematic diagram from another perspective;

[0038] Figure 6 for Figure 4 Schematic side view of

[0039] Figure 7 for Figure 4 A top view of

[0040] Figure 8 for Figure 7 Schematic cross-sectional view of section AA;

[0041] Fig. 9 It is a schematic diagram of the structure of the extrusion rod in this application;

[0042] Fig.10 This is a schematic diagram of the structure of the secondary leveling roller in this application;

[0043] Fig.11 for Fig.10 Side view of

[0044] Fig.12 It is a schematic diagram of the lateral structure of the three-stage leveling roller and the scraper plate in this application;

[0045] The components represented by the reference numerals in the figure are:

[0046] 1. Frame; 11. Leveling unit; 2. Moving unit; 21. Moving frame; 211. Vertical plate; 212. First support plate; 213. Second support plate; 214. Mounting plate; 22. Driving machine; 23. Primary leveling roller; 231. Mounting plate; 232. Extrusion rod; 2321. Outer convex part; 2322. Inner concave part; 233. Straight rod; 24. Secondary leveling roller; 241. Main shaft; 242. Shooting Beating rod; 2421, arc end face; 25, three-stage leveling roller; 26, first power source; 27, second power source; 28, turning device; 281, connecting plate; 282, rotating plate; 283, hinged rod; 284, fixed rod; 285, telescopic cylinder; 29, scraping device; 291, scraping plate; 292, insert strip; 293, fixed plate; 294, brush; 3, material receiving box; 4, reversing unit. DETAILED DESCRIPTION

[0047] See also Figure 1-Figure 3 As shown, a prefabricated board forming and leveling device in this embodiment includes a frame 1 and a moving unit 2 arranged on the upper side thereof, and the moving unit 2 is arranged to be able to level the upper surface of the prefabricated board during the forming process.

[0048] The moving unit 2 includes a moving frame 21 and a driving machine 22 which is transmission-connected with the moving frame 21 and can drive the moving frame 21 to move along the frame 1. A leveling assembly is also transversely arranged on the moving frame 21. The leveling assembly includes a first-level leveling roller 23, a second-level leveling roller 24 and a third-level leveling roller 25 which are horizontally arranged in parallel, and a first power source 26 and a second power source 27 which respectively drive the first-level leveling roller 23 and the second-level leveling roller 24 to rotate, wherein the third-level leveling roller 25 is rotationally connected to the moving frame 21, and the first power source 26 and the second power source 27 are respectively a first motor and a second motor. When in use, the driving machine 22 drives the moving frame 21 to move along the frame 1, and at the same time drives the first-level leveling roller 23 and the second-level leveling roller 24 to rotate respectively through the first motor and the second motor. At this time, the first-level leveling roller 23, the second-level leveling roller 24 and the third-level leveling roller 25 rotate on the upper surface of the prefabricated plate, and realizes preliminary leveling, initial smoothing and fine smoothing of the upper surface of the prefabricated plate in the process of rotation, and finally obtains a surface with good consistency and high overall quality.

[0049] Combination Figure 4 Two guide rails are arranged in parallel on the upper side of the frame 1, and rollers that roll with the guide rails are also arranged on the mobile frame 21. Specifically, the mobile frame 21 includes a main frame and two vertical plates 211 arranged opposite to each other, and a support plate arranged between the two vertical plates 211. Three leveling rollers are arranged horizontally between the two vertical plates 211 and are located on the lower side of the two vertical plates 211. The upper side of the frame 1 is a horizontal plane. The two guide rails are arranged along the length direction of the frame 1. The guide rails include vertical strip baffles in the plane. The lower ends of the baffles of the two guide rails facing away from each other are provided with a connecting plate fixed to the upper surface of the frame 1. The two vertical plates 211 are respectively arranged on the outer sides of the baffles of the two guide rails , and the lower inner sides of the two sides of the length of the vertical plate 211 are provided with rollers that are in rolling contact with the baffle, and the rollers are T-shaped rollers. The side on which the mobile frame 21 is provided with the first-level leveling roller 23 is the front side of the mobile frame 21, and the two T-shaped rollers on the rear sides of the two vertical plates 211 and located on the outside of the third-level leveling roller 25 are connected by a transmission shaft. The support plate includes a first support plate 212 and a second support plate 213 arranged front and rear. The driving machine 22 includes a third motor arranged on the second support plate 213 and sprockets respectively connected to the main shaft 241 and the transmission shaft of the third motor, and a chain wound around the two sprockets. By starting the third motor, the mobile frame 21 is driven to move along the guide rail.

[0050] Combination Figure 5The primary leveling roller 23 includes two mounting plates 231 arranged opposite to each other, and a plurality of extrusion rods 232 are arranged in a circumferential array between the two mounting plates 231. The extrusion rods 232 are wave-shaped rods, and the plane where they are located coincides with the rotation axis of the primary leveling roller 23. The extrusion rods 232 include an arc-shaped inner concave portion 2322 protruding toward the rotation axis of the primary leveling roller 23, and an arc-shaped outer convex portion 2321 protruding away from the rotation axis of the primary leveling roller 23. In the rotation direction of the primary leveling roller 23, the outer convex portion 2321 and the inner concave portion 2322 of two adjacent extrusion rods 232 are located at corresponding positions. When the primary leveling roller 23 rotates, the plurality of extrusion rods 232 apply pressure to the slurry on the upper surface of the prefabricated plate. Since the extrusion rods 232 are wave-shaped, the outer convex portion 2321 first contacts the slurry, exerting pressure on the slurry. The pressure is applied and the slurry is effectively pushed smoothly into the bottom of the adjacent inner recess 2322, thereby forming a series of relatively regular pits on the surface of the precast board. As the first-level leveling roller 23 continues to rotate, the outer protrusion 2321 of the extrusion rod 232 not only forms pits, but also squeezes the slurry at the raised position on the upper surface of the precast board to below the raised position. In this process, the protruding slurry is pushed to the low-lying area next to it, thereby realizing the redistribution of the slurry. This operation not only helps to make the surface of the precast board smoother, but also improves the overall density of the precast board. After being processed by the first-level leveling roller 23, the upper surface of the precast board is initially smoothed, and the previously existing recessed and raised parts are effectively eliminated or reduced, which provides convenience for the subsequent smoothing process.

[0051] Combination Fig. 9 The extrusion rod 232 also includes straight rods 233 arranged at both ends thereof, and is connected to the two mounting plates 231 through the straight rods 233 at both ends, and the specifications of the several extrusion rods 232 of the first-level leveling roller 23 are the same, and the specifications of the outer protrusion 2321 and the inner concave portion 2322 on the extrusion rod 232 are the same, so that when the first-level leveling roller 23 rotates on the upper surface of the prefabricated plate, the pressure applied to the mud on the upper surface of the prefabricated plate is more uniform, and this uniform pressure helps to avoid the problem of surface unevenness caused by uneven pressure, and ensures the overall flatness of the initial flatness of the upper surface of the prefabricated plate; at the same time, the cross-sectional shapes of the outer protrusion 2321 and the inner concave portion 2322 on the extrusion rod 232 are both circular, so that no large indentation will appear when the upper surface of the prefabricated plate is extruded, ensuring the smoothness of the extruded surface, and the circular structure of the extrusion rod 232 is convenient for processing and subsequent cleaning.

[0052] Combination Fig.10The secondary leveling roller 24 includes a main shaft 241 and a beating rod 242 spirally arranged on its outer ring, and a plurality of beating rods 242 are circumferentially arranged around the outer ring of the main shaft 241. When the secondary leveling roller 24 rotates, the plurality of beating rods 242 push the slurry remaining in the raised position on the upper surface of the precast plate to a lower position during the rotation. Since the beating rods 242 are evenly arranged on the main shaft 241, these beating rods 242 can continuously and evenly apply pressure to the slurry to ensure that the raised part of the slurry is effectively pushed to the adjacent recessed position. After being processed by the secondary leveling roller 24, the upper surface of the precast plate is further leveled, the pits formed by the primary leveling roller 23 are initially smoothed, and the raised slurry is redistributed again, laying a solid foundation for the final fine smoothing process.

[0053] Combination Fig.11 The side of the beating rod 242 away from the main shaft 241 is an arc-shaped end surface 2421 protruding outward, so that no large indentation will appear when beating the upper surface of the prefabricated plate, thereby ensuring the smoothness of the beating surface.

[0054] Combination Fig.12 The three-level leveling roller 25 is a smooth columnar structure, which contacts the upper surface of the prefabricated board evenly with a certain pressure. Due to its smooth outer surface, when the upper surface of the prefabricated board moves for leveling, it can effectively level out the tiny unevenness after being processed by the first and second leveling rollers 24. Therefore, the surface leveled by the three leveling rollers in succession not only has good consistency but also high overall quality.

[0055] Compared with the method of manually leveling by lifting a flat plate or leveling a flat plate through a horizontal moving mechanism, the present invention does not simply level the upper surface of the prefabricated board, but adopts multi-stage leveling. Three leveling rollers with different structures are used to perform three different levels of leveling, namely preliminary leveling, initial leveling and fine leveling, on the upper surface of the prefabricated board in turn, and the slurry is redistributed during the leveling process. Finally, after the three leveling rollers work closely together to level, a surface with good consistency and high overall quality is obtained. At the same time, before starting the leveling work, the three leveling rollers of the present invention adjust the height of the horizontal plane according to the height of the upper surface of the prefabricated board. There is no need to repeatedly adjust the height during the entire leveling process, and the three leveling rollers can move with the moving frame 21 to continuously perform three different degrees of leveling operations on the entire upper surface of the prefabricated board, which significantly improves work efficiency.

[0056] Combination Figure 1-Figure 3The middle part of the upper side of the frame 1 is the leveling part 11. The frame 1 is provided with an opening on one side of the leveling part 11, in which a material receiving box 3 is provided, and the vertical projections of the three leveling rollers can all fall into the material receiving box 3. The three leveling rollers can not only perform leveling work but also push excess slurry to move along the upper surface of the prefabricated board during the movement of the mobile frame 21. Finally, when the slurry is moved to the position of the material receiving box 3, the slurry is pushed into the material receiving box 3 for collection and subsequent use.

[0057] Material receiving boxes 3 are provided on both sides of the leveling part 11, and the two material receiving boxes 3 are respectively provided with a reversing unit 4 capable of reversing the moving unit 2 on the side facing away from the leveling part 11. The three leveling rollers perform the leveling work in sequence. Through the set reversing unit 4, the upper surface of the prefabricated plate can be leveled from two directions, which improves the operational convenience and work efficiency.

[0058] It can be understood that blocking rods are also provided between the two ends of the leveling part 11 and the opening, and the area between the two blocking rods and the baffles of the two guide rails and the upper plane of the frame 1 is the mud filling area, and the distance between the two blocking rods is not less than the length of the prefabricated plate to be produced.

[0059] In this embodiment, the reversing unit 4 includes a circular cut on the upper plane of the frame 1 and the two guide rails thereon, which are located at the two receiving boxes 3 away from the leveling part 11, and the circular cut part is the support part of the reversing unit 4 (such as Figure 2 As shown), a fourth motor which is transmission-connected to the lower side of the support part is provided on the frame 1 at the lower side of the support part. After the fourth motor is controlled to drive the mobile unit 2 to move to the support part, the fourth motor is started to drive the support part to rotate, and the mobile unit 2 completes the reversing action accordingly.

[0060] A cleaning device is also provided on the side of the reversing unit 4 facing away from the receiving box 3. The first-level leveling roller 23 is connected to the movable frame 21 through a flipping device 28, and is configured to be able to move toward the cleaning device through the flipping device 28, and is configured to be able to be cleaned under the action of the cleaning device. Due to the arrangement of the several extrusion rods 232 of the first-level leveling roller 23 and the structure designed as a wave rod, the cleaning device here can use a variety of cleaning devices with different structures in the prior art to complete the cleaning. For example, a cleaning device using high-pressure spraying can be used to wash away the mud adhering to the first-level leveling roller 23 through high-pressure spraying to improve the leveling quality of the first-level leveling roller 23.

[0061] It is understandable that a cleaning device is provided on the side of the two reversing units 4 facing away from the material receiving box 3 on the side where they are located, so that the first-level leveling roller 23 can be cleaned by the cleaning device after performing the leveling operation in both directions.

[0062] Combination Figure 5-Figure 7The turning device 28 is arranged on the front outer side of the mobile frame 21. The turning device 28 includes two connecting plates 281, two rotating plates 282, a hinged rod 283, a fixed rod 284 and a telescopic cylinder 285. One end of the two connecting plates 281 is hingedly connected to one end of the two rotating plates 282 respectively, and the other end of the two connecting plates 281 is connected to the upper side of the two vertical plates 211 respectively. The primary leveling roller 23 is rotatably arranged on the other end of the two rotating plates 282 through the mounting plates 231 at both ends thereof. The hinged rod 283 is transversely arranged between the two connecting plates 281, and the two ends are fixedly connected to the two connecting plates 281. The fixed rod 284 is horizontally arranged between the two rotating plates 282, and its two ends are fixedly connected to the middle of the two rotating plates 282. The telescopic cylinder 285 is arranged on the first support plate 212, and its output end is connected to the fixed rod 284. The axes of the hinged rod 283 and the fixed rod 284 are parallel to the three leveling rollers. The telescopic cylinder 285 is a cylinder, and the axis of the telescopic rod of the cylinder is perpendicular to the three leveling rollers. When the telescopic rod of the cylinder is extended, the two rotating plates 282 drive the first-level leveling roller 23 to rotate around the hinge point of the rotating plate 282 and the connecting plate 281, and then the first-level leveling roller 23 moves toward the cleaning device.

[0063] Among them, a connecting shaft extending out of a rotating plate 282 is provided on the mounting plate 231 at one end of the first-level leveling roller 23, and a driven gear is provided on the connecting shaft. A mounting plate 214 is provided on the outer side of the roller on one side in front of the moving frame 21, and one end of the mounting plate 214 is connected to the vertical plate 211. The first power source 26 is arranged at the other end of the mounting plate 214, and the first power source 26 is a first motor. The first motor is provided with a driving gear that can mesh with the driven gear for transmission. When the first-level leveling roller 23 completes the cleaning process, the telescopic rod of the cylinder retracts to drive the two rotating plates 282 to drive the first-level leveling roller 23 to reset. At this time, the two rotating plates 282 are in a vertical state, and the driven gear is meshed with the driving gear. The rotation of the first-level leveling roller 23 is achieved by starting the first motor.

[0064] Combination Figure 8 A scraper device 29 is also provided on the upper side of the secondary leveling roller 24 and the tertiary leveling roller 25. The scraper device 29 includes a brush 294 provided on the upper side of the secondary leveling roller 24 and a scraper plate 291 provided on the upper side of the tertiary leveling roller 25. The brush 294 and the scraper plate 291 are configured to scrape off the mud adhered to the secondary leveling roller 24 and the tertiary leveling roller 25 to improve the leveling quality of the secondary leveling roller 24 and the tertiary leveling roller 25.

[0065] For the setting of the brush 294, in combination with Figure 6Specifically, the brush 294 is arranged along the length direction of the secondary leveling roller 24. The brush 294 includes an insertion strip 292 and a fixed plate 293 vertically arranged at one end of the insertion strip 292. The upper side of the insertion strip 292 is slidably connected to the first support plate 212, and the lower side of the insertion strip 292 is provided with bristles that contact the upper side of the secondary leveling roller 24. A fixed plate 293 is vertically arranged at one end of the insertion strip 292, and an escape opening is opened at one end of the vertical plate 211 corresponding to the fixed plate 293. The fixed plate 293 extends out from the escape opening and is connected to the outer side of the vertical plate 211 by bolts. In order to improve the cleaning effect of the secondary leveling roller 24, the brush 294 needs to be replaced after being used for a period of time. At this time, the bolts are unscrewed to loosen the fixed plate 293, and the brush 294 is replaced from the escape opening.

[0066] The setting of the scraper plate 291 is combined with Figure 8 Specifically, the scraper plate 291 is an angle iron, and its two side edges are respectively in contact with the two sides of the length direction of the three-stage leveling roller 25. A screw is provided on the upper side of the scraper plate 291, and the screw passes through the second support plate 213. Nuts are provided on the screw located on the upper and lower sides of the second support plate 213. When in use, the height of the scraper plate 291 can be adjusted by adjusting the positions of the two nuts on the screw. The scraper plate 291 can realize two-way scraping of the three-stage leveling roller 25, that is, when the moving unit 2 moves in two directions for leveling, the rotation directions of the three-stage leveling roller 25 are opposite. At this time, both sides of the scraper plate 291 can effectively scrape the three-stage leveling roller 25.

[0067] It also includes a control box, and the cylinder, the first motor, the second motor, the third motor and the fourth motor are all communicatively connected to the control box.

[0068] The present invention also provides a prefabricated plate forming and leveling method, using the above-mentioned prefabricated plate forming and leveling equipment, and the specific leveling steps are:

[0069] S1, control the third motor to move, the mobile frame 21 is with the primary leveling roller 23 in front and moves along the frame 1 at a first preset linear speed;

[0070] S2: Start leveling work;

[0071] The first motor is controlled to drive the first-level leveling roller 23 to rotate at a second preset linear speed, the second motor is controlled to drive the second-level leveling roller 24 to rotate at a third preset linear speed, and the third-level leveling roller 25 moves horizontally with the moving frame 21 at the first preset linear speed;

[0072] First, the slurry on the upper surface of the prefabricated board is squeezed by a plurality of squeezing rods 232 of the primary leveling roller 23, and pits are left in the squeezing process. At the same time, the slurry on the raised position on the upper surface of the prefabricated board is squeezed to a position lower than the raised position.

[0073] Then, the holes on the upper surface of the prefabricated board are initially smoothed by a plurality of beating rods 242 of the secondary leveling roller 24, and at the same time, the slurry at the raised position on the upper surface of the prefabricated board is further squeezed to a position below the raised position;

[0074] Finally, the upper surface of the prefabricated board is leveled by the three-stage leveling roller 25, and the excess slurry is pushed into the material receiving box 3 by the three-stage leveling roller 25 when the moving frame 21 passes through the material receiving box 3;

[0075] During the above-mentioned leveling work, the brush 294 and the scraper plate 291 are constantly scraping the secondary leveling roller 24 and the tertiary leveling roller 25 to improve the leveling quality of the two leveling rollers.

[0076] In step S2, the third preset linear speed is equal to the first preset linear speed, avoiding the problem of missed smoothing or uneven smoothing caused by speed difference, ensuring that the smoothing effect of the beating rod 242 on the upper surface of the precast plate is more uniform and continuous, thereby improving the effect of the initial smoothing, and the second preset linear speed is greater than the third preset linear speed, so that the first-level leveling roller 23 squeezes the upper surface of the precast plate more frequently. This high-frequency squeezing promotes the redistribution of the slurry and can greatly reduce the unevenness of the surface. The rapid squeezing of the first-level leveling roller 23 and the uniform smoothing of the second-level leveling roller 24 jointly improve the production efficiency.

[0077] Preferably, the second preset linear speed is twice the third preset linear speed.

[0078] After completing the above step S2, the first-level leveling roller 23 is cleaned and the mobile unit 2 is reversed. Specifically: after completing the leveling work, the third motor is controlled to drive the mobile frame 21 to continue moving until it moves to the upper side of the material receiving box 3; the third motor is controlled to stop for a period of time (for example, stop for 10S), and then the first motor and the second motor are controlled to stop; finally, the third motor is controlled to continue to drive the mobile frame 21 to move until it moves to the reversing unit 4 and stops; the telescopic rod of the cylinder is controlled to extend, and the rotating plate 282 is driven to drive the secondary leveling roller 24 to move toward the cleaning device, and it stops after moving to the cleaning position. At this time, the cleaning device cleans the first-level leveling roller 23; after cleaning, the telescopic rod of the cylinder is controlled to retract, and the rotating plate 282 is driven to reset the secondary leveling roller 24; the fourth motor is controlled to drive the support part to drive the mobile unit 2 to rotate 360°, and the reversing action of the mobile unit 2 is completed.

Claims

1. A prefabricated plate forming and leveling device, characterized in that: It comprises a frame (1) and a moving unit (2) arranged on the upper side thereof, wherein the moving unit (2) is arranged to be able to perform leveling work on the upper surface of the prefabricated plate; The mobile unit (2) comprises a mobile frame (21) and a driving machine (22) which is transmission-connected to the mobile frame (21) and can drive the mobile frame (21) to move along the frame (1); a leveling component is also transversely provided on the mobile frame (21); The leveling assembly comprises a primary leveling roller (23), a secondary leveling roller (24) and a tertiary leveling roller (25) which are arranged horizontally in parallel, and a first power source (26) and a second power source (27) for respectively driving the primary leveling roller (23) and the secondary leveling roller (24) to rotate; The primary leveling roller (23) comprises two mounting plates (231) arranged opposite to each other, a plurality of extrusion rods (232) are arranged in a circumferential array between the two mounting plates (231), the extrusion rods (232) are wave rods, and the plane where they are located coincides with the rotation axis of the primary leveling roller (23), the extrusion rods (232) comprise an arc-shaped inner concave portion (2322) protruding toward the rotation axis of the primary leveling roller (23), and an arc-shaped outer convex portion (2321) protruding away from the rotation axis of the primary leveling roller (23), and in the rotation direction of the primary leveling roller (23), the outer convex portion (2321) and the inner concave portion (2322) of two adjacent extrusion rods (232) are located in corresponding positions; The secondary leveling roller (24) comprises a main shaft (241) and a beating rod (242) spirally arranged on the outer ring thereof, and a plurality of beating rods (242) are arranged circumferentially around the outer ring of the main shaft (241); The three-stage leveling roller (25) is rotatably connected to the moving frame (21) and has a smooth columnar structure.

2. The prefabricated plate forming and leveling equipment according to claim 1, characterized in that: The specifications of the plurality of extrusion rods (232) are the same, the specifications of the outer convex portion (2321) and the inner concave portion (2322) on the extrusion rod (232) are the same, and the cross-sectional shape is circular.

3. The prefabricated plate forming and leveling equipment according to claim 1, characterized in that: A side surface of the beating rod (242) away from the main shaft (241) is an outwardly convex arc-shaped end surface (2421).

4. The prefabricated plate forming and leveling equipment according to claim 1, characterized in that: Two guide rails are arranged in parallel on the upper side of the frame (1), and rollers that are in rolling contact with the guide rails are also arranged on the moving frame (21).

5. The prefabricated plate forming and leveling equipment according to claim 1, characterized in that: The middle part of the upper side of the frame (1) is a leveling portion (11), and an opening is provided on one side of the frame (1) located on the leveling portion (11), in which a material receiving box (3) is provided, and the vertical projections of the three leveling rollers can all fall into the material receiving box (3).

6. The prefabricated plate forming and leveling equipment according to claim 5, characterized in that: The material receiving boxes (3) are provided on both sides of the leveling portion (11), and the two material receiving boxes (3) are also provided with reversing units (4) capable of reversing the moving unit (2) on the sides facing away from the leveling portion (11).

7. The prefabricated plate forming and leveling equipment according to claim 6, characterized in that: A cleaning device is also provided on the side of the reversing unit (4) facing away from the material receiving box (3); The primary leveling roller (23) is connected to the movable frame (21) via a turning device (28), and is configured to be able to move toward the cleaning device via the turning device (28), and is configured to be able to be cleaned under the action of the cleaning device.

8. The prefabricated plate forming and leveling equipment according to claim 1, characterized in that: A scraper device (29) is also provided on the upper side of the secondary leveling roller (24) and the tertiary leveling roller (25).

9. A leveling method, characterized in that: The prefabricated plate forming and leveling device according to any one of claims 1 to 8 is used, and the specific steps are: S1, controlling the driving machine (22) to move, so that the movable frame (21) moves along the frame (1) with the primary leveling roller (23) in front at a first preset linear speed; S2: Start leveling work; Controlling the first power source (26) to operate, driving the first-level leveling roller (23) to rotate at a second preset linear speed, controlling the second power source (27) to operate, driving the second-level leveling roller (24) to rotate at a third preset linear speed, and the third-level leveling roller (25) to move horizontally with the moving frame (21) at the first preset linear speed; First, the slurry on the upper surface of the prefabricated board is squeezed by a plurality of squeezing rods (232) of the primary leveling roller (23), and holes are left during the squeezing process. At the same time, the slurry at the raised position on the upper surface of the prefabricated board is squeezed to a position below the raised position. Then, the holes on the upper surface of the prefabricated plate are initially smoothed by a plurality of beating rods (242) of the secondary leveling roller (24), and at the same time, the slurry at the raised position on the upper surface of the prefabricated plate is further squeezed to a position below the raised position; Finally, the upper surface of the prefabricated plate is finely smoothed by a three-stage leveling roller (25).

10. A leveling method according to claim 9, characterized in that: In step S2, the third preset linear speed is equal to the first preset linear speed, and the second preset linear speed is greater than the third preset linear speed.

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