Automatic pavement brick laying device

Abstract

The invention relates to the technical field of municipal building and road construction, in particular to an automatic pavement brick laying device which comprises a brick assembling device and a main body frame, and the main body frame comprises a brick storage system, a brick screening system, a brick rotating system, a brick conveying system and a brick output system which are connected in sequence; the brick assembling device is arranged, and a cam and a driven rod are matched, so that a mechanical claw grasps and loosens bricks, a magnetic cover plate is conveniently assembled on the bricks, and subsequent transportation through magnetism is facilitated; the brick storage system, the brick screening system, the brick rotating system, the brick conveying system and the brick output system are further arranged for cooperative work, manual work is not needed, automation of the whole process from brick feeding to brick laying can be achieved, the labor intensity of brick laying is reduced, and the brick laying efficiency and accuracy are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of municipal construction and road construction, and particularly relates to an automatic sidewalk brick laying device. Background Art

[0002] In the current rapidly developing urban construction process, as a key part of urban infrastructure construction, the scale and quality requirements of municipal road projects are constantly increasing. The laying of sidewalk bricks, as an important link in municipal road construction, plays an indispensable role in enhancing the urban image, ensuring pedestrian safety and convenience.

[0003] For a long time, the laying of sidewalk bricks on municipal roads has mainly relied on manual operation. Construction workers need to bend down for a long time to carry and lay bricks, with high labor intensity and low efficiency. Moreover, the laying quality is affected by the technical level of workers, resulting in uneven and rough problems. These uneven and rough conditions not only affect the walking experience of pedestrians, easily causing safety hazards such as water accumulation and tripping, but also to a certain extent reduce the overall aesthetics and durability of urban roads.

[0004] With the progress of technology and the promotion of engineering construction requirements, in order to improve the laying efficiency and quality and reduce manual labor intensity, automatic laying equipment has emerged. However, the current automatic laying equipment has problems such as single function and low precision, and it is difficult to meet the requirements of high efficiency, high integration and stability in engineering construction.

[0005] In view of this, in order to effectively solve the problems of low automation degree, low brick handling efficiency and uneven brick arrangement in brick laying equipment, the present invention proposes an automatic sidewalk brick laying machine. Summary of the Invention

[0006] The purpose of the present invention is to provide an automatic sidewalk brick laying device, which can solve the above technical problems and improve the brick laying efficiency and accuracy.

[0007] The present invention provides an automatic sidewalk brick laying device, including a brick assembly device and a main frame. The main frame includes a brick storage system, a brick screening system, a brick rotation system, a brick conveying system and a brick output system connected in sequence;

[0008] The brick assembly device includes a magnetic cover plate located on top of the brick, and a gripper is provided between the magnetic cover plate and the brick, and the gripper can grasp the brick;

[0009] The brick storage system includes a brick storage bin, in which bricks assembled with the magnetic cover plates are stored. The outlet of the brick storage bin is connected to the brick screening system. A height-adjustable baffle is provided at the outlet of the brick storage bin. A conveying device is provided at the bottom of the brick storage bin, and the conveying direction of the conveying device faces the outlet of the brick storage bin;

[0010] The brick screening system includes a frame. One end of the frame is connected to the outlet of the brick storage bin, and the other end is connected to the brick rotating system in a downward-sloping manner. A sieve mesh is provided on the frame, and the sieve holes of the sieve mesh are smaller than the complete bricks;

[0011] The brick rotating system includes a rotating disc corresponding to the brick screening system. A semi-circular retaining ring is provided on the side of the rotating disc away from the frame. Magnetic adsorption rollers are provided at both ends of the retaining ring. The magnetic adsorption rollers can adsorb the magnetic cover plates. A conveyor belt is sleeved on the magnetic adsorption rollers. The axis of the conveyor belt is tangent to the outer circumference of the rotating disc. The upper surface of the conveyor belt is located above the retaining ring. A brick supporting plate is provided behind the output end of the conveyor belt. The brick supporting plate is perpendicular to the axis of the conveyor belt. First pushing devices are provided at both ends of the brick supporting plate, and the first pushing devices are used to push the bricks located at both ends of the brick supporting plate towards the center. A pushing plate is provided on the side of the brick supporting plate close to the conveyor belt, and the pushing plate can push the bricks on the brick supporting plate to the brick conveying system;

[0012] The brick conveying system includes a number of conveying tracks. One end of the conveying track close to the brick rotating system is a magnetic adsorption track, and the other end is a non-magnetic adsorption track; the non-magnetic adsorption track is connected to the brick output system;

[0013] The brick output system includes a gradually tapering section of the track. One end of the gradually tapering section of the track close to the non-magnetic adsorption track has the same width as the non-magnetic adsorption track, and the other end has a gradually decreasing width and slopes downward to the outlet.

[0014] Preferably, the gripper includes four L-shaped mechanical claws distributed in a cross shape. The mechanical claws can be close to each other to grip the bricks. A driven rod is provided above the ends of the mechanical claws close to each other. A cam is provided between the mechanical claws and the magnetic cover plate. The center of the cam is connected to the output shaft of the first motor, and the first motor is fixedly connected to the magnetic cover plate. Four arc-shaped guide grooves are provided on the cam corresponding to the driven rod. One end of the guide groove is close to the center of the cam, and the other end is far from the center of the cam. The driven rod is inserted into the guide groove. A cross-shaped bracket is provided between the mechanical claws and the bricks. Limiting grooves corresponding to the mechanical claws are provided on the bracket to limit the movement track of the mechanical claws.

[0015] Preferably, one ends of the four guide grooves close to the center of the cam are located on the same circumference, and the other ends far from the center of the cam are located on the same circumference.

[0016] Preferably, the conveying device includes a plurality of rollers located at the bottom of the brick storage bin. The axes of the rollers are perpendicular to the conveying direction of the brick storage bin. Both ends of the rollers extend outward through the side wall of the brick storage bin. One end of the roller is connected to a bearing block, and the other end is connected to a first driving motor.

[0017] Preferably, the center of the rotating disc is connected to the output shaft of the second driving motor, and the diameter of the rotating disc is greater than or equal to the width between the inner walls on both sides of the frame.

[0018] Preferably, the first pushing device includes a pushing arm. One side of the pushing arm is close to the brick, and an eccentric wheel is provided on the other side. The rotation point of the eccentric wheel is connected to a second motor. A limiting arm is provided on the side of the pushing arm close to the eccentric wheel. The limiting arm abuts against the outer side of the eccentric wheel. A reinforcing portion is provided on the side of the pushing arm close to the main body frame. A guiding frame is horizontally provided on the main body frame corresponding to the reinforcing portion. The reinforcing portion can slide along the guiding frame. A compression spring is provided between one end of the guiding frame away from the eccentric wheel and the reinforcing portion.

[0019] Preferably, a pressure sensor is provided at the bottom of the brick supporting plate for sensing the weight of the brick on the brick supporting plate.

[0020] Preferably, a brick turning system is provided between the magnetic attracting track and the non-magnetic attracting track. The brick turning system includes a support rod that penetrates the conveying track. The support rod is perpendicular to the axis of the conveying track. One end of the support rod is connected to a third driving motor. Two groups of clamping assemblies are symmetrically provided on both sides of the support rod. The clamping assemblies can clamp and assemble the bricks with magnetic covers.

[0021] Preferably, the clamping assembly includes a plurality of clamping rods arranged symmetrically up and down. The distance between the upper and lower groups of clamping rods is greater than or equal to the thickness of the brick assembled with the magnetic cover.

[0022] Preferably, limiting plates are provided on both sides of the tapered section of the track. A plurality of pulleys are provided on the side of the limiting plates close to the brick.

[0023] Advantageous effects:

[0024] By providing a brick assembling device, the present invention realizes the grasping and loosening of the mechanical claw on the brick through the cooperation between the cam and the follower rod, which facilitates the assembly of the magnetic cover on the brick and subsequent transportation using magnetism. The present invention also provides a brick storage system, a brick screening system, a brick rotating system, a brick conveying system, and a brick output system to work together. Without manual labor, it can realize the automation of the entire process from brick feeding to paving, reduce the labor intensity of paving bricks, and improve the paving efficiency and accuracy.

[0025] In the brick screening system of the present invention, incomplete bricks can be screened out, avoiding uneven and unsmooth paving caused by the mixing of incomplete bricks. The first pushing device in the brick rotating system can push the bricks at both ends of the brick supporting plate towards the center, making the bricks neatly arranged. At the same time, the settings of the brick conveying system and the output system also help to ensure the orderly output and accurate paving of the bricks, reducing the problem of uneven brick arrangement and improving the accuracy of brick paving. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0027] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 is a schematic diagram of the structure of the brick storage system of the present invention;

[0029] Figure 3 is a schematic diagram of the structure of the brick rotating system of the present invention;

[0030] Figure 4 is a front view structural diagram of the first pushing device of the present invention;

[0031] Figure 5 is a back view structural diagram of the first pushing device of the present invention;

[0032] Figure 6 is a schematic diagram of the structure of the brick flipping system of the present invention;

[0033] Figure 7 is an exploded view of the brick assembly device of the present invention.

[0034] Description of the reference numerals:

[0035] 1 - Brick storage system, 101 - Baffle, 102 - Brick storage bin, 103 - Roller, 2 - Brick screening system, 201 - Screen, 202 - Frame, 3 - Brick rotating system, 301 - Rotating disc, 302 - Second driving motor, 303 - Retaining ring, 304 - Conveyor belt, 305 - Magnetic roller, 306 - Brick supporting plate, 307 - Pushing plate, 308 - First pushing device, 3081 - Second motor, 3082 - Eccentric wheel, 3083 - Pushing arm, 3084 - Reinforcing part, 3085 - Limiting arm, 3086 - Guide frame, 3087 - Extrusion spring, 309 - Second pushing device, 4 - Brick conveying system, 401 - Magnetic track, 402 - Non-magnetic track, 5 - Brick output system, 501 - Track tapered section, 502 - Pulley, 6 - Brick flipping system, 601 - Third driving motor, 602 - Support rod, 603 - Clamping assembly, 604 - Clamping rod, 7 - Brick assembling device, 701 - Bracket, 702 - Mechanical claw, 703 - Driven rod, 704 - Magnetic cover plate, 705 - Cam, 706 - Guide groove, 707 - First motor, 8 - Brick. Detailed implementation manners

[0036] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present invention, "a plurality of" means two or more unless specifically defined otherwise. In addition, the terms "mounted", "connected" and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention may be understood according to specific circumstances.

[0039] Embodiment 1

[0040] As Figures 1-7 shown, an automatic sidewalk brick laying device includes a brick assembly device 7 and a main frame. The main frame includes a brick storage system 1, a brick screening system 2, a brick rotation system 3, a brick conveying system 4 and a brick output system 5 which are connected in sequence;

[0041] The brick assembly device 7 includes a magnetic cover plate 704 located on top of the brick 8. A gripper is provided between the magnetic cover plate 704 and the brick 8, and the gripper can grasp the brick 8. The gripper includes four L-shaped mechanical claws 702 distributed in a cross shape. The mechanical claws 702 can approach each other to tightly hold the brick 8. Vertically above one end of the mechanical claws 702 that approach each other is a driven rod 703. A cam 705 is provided between the mechanical claws 702 and the magnetic cover plate 704. The center of the cam 705 is connected to the output shaft of the first motor 707, and the first motor 707 is fixedly connected to the magnetic cover plate 704. The magnetic cover plate 704 can effectively protect the first motor 707 from various external factors, such as dust, moisture, and possible collisions, etc., ensuring that the first motor 707 can operate stably for a long time. Four arc-shaped guide grooves 706 are provided on the cam 705 corresponding to the driven rod 703. One end of the guide groove 706 is close to the center of the cam 705, and the other end is far from the center of the cam 705. The driven rod 703 is inserted into the guide groove 706. One ends of the four guide grooves 706 close to the center of the cam 705 are located on the same circumference, and the other ends far from the center of the cam 705 are located on the same circumference. When the driven rods 703 are all located at one end of the guide grooves 706 close to the center of the cam 705, the ends of the mechanical claws 702 can be close to the side wall of the brick 8, and then tightly hold the brick 8. When the driven rods 703 slide towards the ends of the guide grooves 706 far from the center of the cam 705, the ends of the mechanical claws 702 gradually move away from the side wall of the brick 8, and then release the brick 8. The contour curve of the guide groove 706 defines the extension path of the driven rod 703. The end of the driven rod 703 passes through the guide groove 706 and is provided with a limiting ring to prevent the driven rod 703 from disengaging from the cam 705 and affecting the movement of the mechanical claws 702. A cross-shaped bracket 701 is provided between the mechanical claws 702 and the brick 8. Limiting grooves corresponding to the mechanical claws 702 are provided on the bracket 701 to limit the movement track of the mechanical claws 702, so that the mechanical claws 702 can only move along the axis direction of the arms of the bracket 701.

[0042] The brick storage system 1 includes a brick storage bin 102, in which bricks 8 equipped with magnetic cover plates 704 are stored. The magnetic cover plates 704 are located above the bricks 8. A conveying device is provided at the bottom of the brick storage bin 102, and the conveying direction of the conveying device faces the outlet of the brick storage bin 102; the conveying device includes a number of rollers 103, which are located at the bottom of the brick storage bin 102. The distance between adjacent rollers 103 is less than the width of the brick 8, enabling the smooth discharge of the bricks 8. The axis of the roller 103 is perpendicular to the conveying direction of the brick storage bin 102, and the top end of the roller 103 rotates towards the side close to the outlet of the brick storage bin 102 to provide power for the discharge of the bricks 8. Both ends of the roller 103 extend outwards through the side wall of the brick storage bin 102. One end of the roller 103 is connected to a bearing seat, and the other end is connected to a first driving motor. The first driving motor can rotate the roller 103 to provide continuous and stable power for the discharge of the bricks 8. The first driving motor and the bearing seat are both common structures in the art and are omitted in the figure. The outlet of the brick storage bin 102 is connected to the brick screening system 2. A height-adjustable baffle 101 is provided at the outlet of the brick storage bin 102. Installation ears are provided at both ends of the baffle 101. A number of groups of installation holes are symmetrically arranged from top to bottom on both sides of the outlet of the brick storage bin 102. The installation ears and the installation holes can be bolted together. During use, the installation height of the installation ears can be adjusted according to the height of the assembled bricks 8, thereby controlling the output quantity of the bricks 8.

[0043] The brick screening system 2 includes a frame 202. One end of the frame 202 is connected to the outlet of the brick storage bin 102, and the other end is inclined downwards to be connected to the brick rotating system 3. A sieve mesh 201 is provided on the frame 202. The sieve holes of the sieve mesh 201 are smaller than the complete bricks 8. The broken or undersized bricks 8 can pass through the sieve holes and fall, avoiding the broken or unqualified bricks 8 from entering the subsequent brick-laying process and affecting the laying accuracy, and ensuring the quality of brick-laying; the edge of the sieve mesh 201 is detachably connected to the frame 202, and common connection methods such as bolt connection and plug connection can be used. A storage bin is provided below the sieve mesh 201 for storing the unqualified bricks 8 that fall through the sieve holes. The frame 202 serves as the support structure of the brick screening system 2, which can ensure the stability of the sieve mesh 201.

[0044] The brick rotating system 3 includes a rotating disk 301 corresponding to the brick screening system 2. The center of the rotating disk 301 is connected to the output shaft of the second driving motor 302. The diameter of the rotating disk 301 is greater than or equal to the width between the inner walls on both sides of the frame 202, and it can receive all the bricks 8 screened by the brick screening system 2. The outer platform on the side of the rotating disk 301 close to the frame 202 inclines towards the rotating disk 301, enabling the bricks 8 to fall into the rotating disk 301 under the action of gravity. The rotating disk 301 rotates under the action of the second driving motor 302, enabling the bricks 8 to be laid flat. A semi-circular retaining ring 303 is provided on the side of the rotating disk 301 away from the frame 202. Magnetic adsorption rollers 305 are provided at both ends of the retaining ring 303. The magnetic adsorption rollers 305 can adsorb the magnetic cover plate 704. The bricks 8 approach the magnetic adsorption rollers 305 under the action of centrifugal force when the rotating disk 301 rotates. A conveyor belt 304 is sleeved on the magnetic adsorption rollers 305. One end of the inner part of the conveyor belt is sleeved on the magnetic adsorption rollers 305, and the other end is sleeved on a driving wheel. The driving wheel is connected to a driving source to provide power for the conveyor belt 304. The axis of the conveyor belt 304 is tangent to the outer circumference of the rotating disk 301. The upper surface of the conveyor belt 304 is located above the retaining ring 303 and is used to convey the bricks 8. The width of the conveyor belt 304 is slightly greater than the width of the bricks 8 and less than the length of the bricks 8, and it can stably clamp the bricks 8 during the flipping process. Wide-mouth limiting baffles can be provided on both sides of the upper surface of the conveyor belt 304. After being constrained by the limiting baffles, the bricks 8 are rotated until the long sides of the bricks 8 are parallel to the axis of the conveyor belt 304, and the directions of the bricks 8 on the conveyor belt 304 are the same. A brick receiving plate 306 is provided behind the output end of the conveyor belt 304. The brick receiving plate 306 is perpendicular to the axis of the conveyor belt 304. First pushing devices 308 are provided at both ends of the brick receiving plate 306. The first pushing devices 308 are used to push the bricks 8 located at both ends of the brick receiving plate 306 towards the center.

[0045] The first pushing device 308 includes a pushing arm 3083. One side of the pushing arm 3083 is close to the brick 8, and an eccentric wheel 3082 is provided on the other side. The rotation point of the eccentric wheel 3082 is connected to the second motor 3081. A U-shaped limiting arm 3085 is provided on the side of the pushing arm 3083 close to the eccentric wheel 3082. The limiting arm 3085 abuts against the outer side of the eccentric wheel 3082. When the eccentric wheel 3082 rotates, it can squeeze and push the limiting arm 3085, thereby pushing the brick 8 on the brick supporting plate 306; a strengthening part 3084 is provided on the side of the pushing arm 3083 close to the main body frame. The pushing arm 3083 is bolted to the strengthening part 3084. A guiding frame 3086 is horizontally provided on the main body frame corresponding to the strengthening part 3084. The strengthening part 3084 can slide along the guiding frame 3086. A compression spring 3087 is provided between one end of the guiding frame 3086 away from the eccentric wheel 3082 and the strengthening part 3084. When the eccentric wheel 3082 rotates to squeeze the limiting arm 3085, the strengthening part 3084 will move accordingly and apply pressure to the compression spring 3087. When the eccentric wheel 3082 continues to rotate and no longer applies pressure to the limiting arm 3085, the strengthening part 3084 is reset following the eccentric wheel 3082 under the action of the compression spring 3087, facilitating the next push.

[0046] A pressure sensor is provided at the bottom of the brick supporting plate 306 for sensing the weight of the brick 8 on the brick supporting plate 306. A pushing plate 307 is provided on the side of the brick supporting plate 306 close to the conveyor belt 304. The pushing plate 307 can push the brick 8 on the brick supporting plate 306 to the brick conveying system 4; when the pressure sensor senses that the number of bricks 8 on the brick supporting plate 306 reaches the target number, the pushing plate 307 can push the brick 8. A second pushing device 309 is provided on the side of the pushing plate 307 away from the brick supporting plate 306. The second pushing device 309 can adopt the same structure as the first pushing device 308.

[0047] The first pushing device 308 and the second pushing device 309 can also adopt electric push rods. The end of the electric push rod is fixedly connected to the pushing plate 307, which can drive the pushing plate 307 to push the brick 8 and reset.

[0048] The brick conveying system 4 includes a number of parallel conveying tracks. One end of the conveying track close to the brick rotating system 3 is a magnetic adsorption track 401, and the other end is a non-magnetic adsorption track 402; the magnetic adsorption track 401 is located at the initial section of the conveying track and adsorbs the brick 8 with a magnetic cover plate 704 through magnetic force, so that the brick 8 can be stably attached to the track, facilitating the precise transportation of the brick 8. The non-magnetic adsorption track 402 can avoid the interference of magnetic force during the flipping process of the brick 8. Both the magnetic adsorption track 401 and the non-magnetic adsorption track 402 adopt conventional conveying methods.

[0049] There is a brick flipping system 6 between the magnetic attraction track 401 and the non-magnetic attraction track 402. The brick flipping system 6 includes a support rod 602. The support rod 602 penetrates through the conveying track. The support rod 602 is perpendicular to the axis of the conveying track. One end of the support rod 602 is connected to a third driving motor 601. Two groups of clamping assemblies 603 are symmetrically arranged on both sides of the support rod 602. The clamping assemblies 603 can clamp the bricks 8 assembled with magnetic covers 704. The third driving motor 601 can drive the support rod 602 to rotate, thereby flipping the bricks 8. The clamping assembly 603 includes a number of clamping rods 604 arranged symmetrically up and down. The distance between the upper and lower groups of clamping rods 604 is greater than or equal to the thickness of the bricks 8 assembled with magnetic covers 704.

[0050] The length of the clamping rod 604 is less than the length of the brick 8 and greater than half of the length of the brick 8, ensuring stable flipping, and there is always a part of the brick 8 on the conveying track before and after flipping, facilitating the conveying track to provide power for the conveying of the brick 8. The bricks 8 assembled with magnetic covers 704 can enter between the clamping rods 604 under the conveying of the magnetic attraction track 401, and then the bricks 8 are flipped to the non-magnetic attraction track 402 and output from between the clamping rods 604 under the action of the non-magnetic attraction track 402.

[0051] The output end of the non-magnetic attraction track 402 is connected to a brick output system 5. The brick output system 5 includes a track tapering section 501. One end of the track tapering section 501 close to the non-magnetic attraction track 402 has the same width as the non-magnetic attraction track 402, and the other end has a gradually decreasing width and slopes downward to the outlet. Limiting plates are arranged on both sides of the track tapering section 501. A number of pulleys 502 are arranged on the side of the limiting plate close to the brick 8. The pulleys 502 can rotate synchronously with the sliding of the brick 8, reducing the friction between the brick 8 and the side wall of the track tapering section 501.

[0052] Working process:

[0053] When starting the automatic brick-laying operation, multiple key systems of the sidewalk brick automatic laying device cooperate to start the working mode.

[0054] The cam 705 starts to rotate under the action of the first motor 707. The follower rod 703 slides along the contour curve of the guide groove 706. During this process, the mechanical claw 702 can expand and contract along the limiting groove. When the follower rods 703 are both located at one end of the guide groove 706 close to the center of the cam 705, the end of the mechanical claw 702 presses against the side wall of the brick 8, thereby gripping the brick 8; when the follower rod 703 slides towards the end of the guide groove 706 away from the center of the cam 705, the end of the mechanical claw 702 gradually moves away from the side wall of the brick 8, thereby releasing the brick 8.

[0055] The brick 8 with the magnetic cover plate 704 assembled is placed in the brick storage bin 102. The height of the baffle 101 is adjustable to adjust the number of bricks discharged. When bricks need to be discharged, the first driving motor is started to drive the roller 103 to rotate stably. The brick 8 leaves the brick storage bin 102 under the action of the roller 103 and enters the brick screening system 2;

[0056] The brick 8 slides down along the screen 201. During this process, the broken or unqualified bricks 8 pass through the screen holes and fall, and the complete bricks 8 fall into the rotating disc 301 of the brick rotating system 3. The rotating disc 301 rotates under the action of the second driving motor 302, so that the bricks 8 can be laid flat. The brick 8 approaches below the retaining ring 303 under the action of the centrifugal force when the rotating disc 301 rotates. The retaining ring 303 adsorbs the magnetic cover plate 704. Then the brick 8 is flipped to above the retaining ring 303 along the conveyor belt and conveyed to the brick supporting plate 306 along the conveyor belt;

[0057] The eccentric wheels 3082 of the first pushing devices 308 on both sides of the brick supporting plate 306 rotate to squeeze the limiting arms 3085, and then the pushing arms 3083 push the bricks 8 to move the bricks 8 towards the center of the brick supporting plate 306 to provide a placement space for the next brick 8; during this process, the strengthening part 3084 will move accordingly and then apply pressure to the compression spring; when the eccentric wheel 3082 continues to rotate and no longer applies pressure to the limiting arm 3085, the strengthening part 3084 is reset following the eccentric wheel 3082 under the action of the compression spring and abuts against the other end of the guiding frame to complete one reciprocation; then it circulates until the pressure sensor senses that the weight of the bricks 8 on the brick supporting plate 306 reaches the target weight, that is, the brick supporting plate 306 is full of bricks 8; at this time, the second pushing device 309 starts to work, pushes the push plate 307, and pushes all the bricks 8 on the brick supporting plate 306 to the conveying track;

[0058] The brick 8 moves along the conveying track. The magnetic adsorption track 401 is located at the initial section of the conveying track. The brick 8 with the magnetic cover plate 704 is adsorbed by magnetic force, so that the brick 8 can be stably attached to the track, which is convenient for the precise transportation of the brick 8; when the brick 8 approaches the brick flipping system 6, the brick 8 enters between the clamping rods 604 under the action of the magnetic adsorption track 401. Then the third driving motor 601 drives the support rod 602 to rotate 180°, so that the brick 8 is flipped to make the magnetic cover plate 704 face upwards to prepare for the subsequent brick laying operation; then the brick 8 leaves the clamping rods 604 under the action of the non-magnetic adsorption track 402 and enters the non-magnetic adsorption track 402 to avoid the magnetic force affecting the flipping of the brick 8;

[0059] After that, the brick 8 enters the tapered section 501 of the track and slides downward under the action of gravity. The pulleys 502 on both sides of the tapered section 501 of the track rotate synchronously with the rotation of the brick 8, aligning the bricks 8 neatly. Thus, a series of preparatory work from the storage of the bricks 8 to their neat alignment is completed, creating good conditions for the subsequent efficient and accurate brick-laying operation. Subsequently, the neatly aligned bricks 8 can be laid in the corresponding positions, greatly improving the efficiency and quality of brick-laying and reducing the labor cost and construction error.

[0060] Embodiment 2

[0061] An automatic sidewalk brick-laying device is basically the same in structure as that in Embodiment 1, only the specific structure of the brick 8 flipping system is different. The length of the clamping rod 604 is greater than or equal to the length of the brick 8. The brick 8 flipping system 6 further includes an auxiliary conveying device. The auxiliary conveying device includes a number of auxiliary conveyor belts. The conveying auxiliary conveyor belts are in the same plane as the conveying track. When the clamping rod 604 is parallel to the conveying track, an auxiliary conveyor belt is provided between adjacent two clamping rods 604. When the brick 8 enters and exits the clamping rod 604, the auxiliary conveying device can provide power for the movement of the brick 8. The auxiliary conveyor belt is a conventional conveying device and is omitted in the figure.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automatic sidewalk brick laying device, characterized in that: It includes a brick assembly device and a main frame, wherein the main frame includes a brick storage system, a brick screening system, a brick rotation system, a brick conveying system and a brick output system connected in sequence; The brick assembly device comprises a magnetic cover plate located on the top of the brick, a gripper is provided between the magnetic cover plate and the brick, and the gripper can grip the brick; The brick storage system comprises a brick storage bin, in which bricks equipped with the magnetic cover are stored, the brick storage bin outlet is connected to the brick screening system, the brick storage bin outlet is provided with a height-adjustable baffle, the bottom of the brick storage bin is provided with a conveying device, and the transmission direction of the transmission device is toward the brick storage bin outlet; The brick screening system comprises a frame, one end of which is connected to the brick storage bin outlet, and the other end of which is tilted downward and connected to the brick rotating system, and a screen is provided on the frame, and the screen holes of the screen are smaller than the complete bricks; The brick rotating system comprises a rotating disc corresponding to the brick screening system, a semicircular retaining ring is provided on the side of the rotating disc away from the frame, magnetic rollers are provided at both ends of the retaining ring, the magnetic rollers can adsorb the magnetic cover plate, a conveyor belt is sleeved on the magnetic roller, the axis of the conveyor belt is tangent to the outer circumference of the rotating disc, the upper surface of the conveyor belt is located above the retaining ring, a brick-bearing plate is provided behind the output end of the conveyor belt, the brick-bearing plate is perpendicular to the axial direction of the conveyor belt, both ends of the brick-bearing plate are provided with a first pushing device, the first pushing device is used to push the bricks located at both ends of the brick-bearing plate to the center, the brick-bearing plate is provided with a push plate close to the conveyor belt, the push plate can push the bricks on the brick-bearing plate to the brick conveying system; The brick conveying system includes a plurality of conveying tracks, one end of which is a magnetic track close to the brick rotating system, and the other end is a non-magnetic track; the non-magnetic track is connected to the brick output system; The brick output system comprises a track tapering section, wherein one end of the track tapering section close to the non-magnetic track has the same width as the non-magnetic track, and the other end has a gradually smaller width and slopes downward to an exit.

2. The automatic sidewalk tile laying device according to claim 1 is characterized in that: The gripper includes four L-shaped mechanical claws distributed in a cross shape. The mechanical claws are close to each other to grip bricks. A driven rod is provided above one end of the mechanical claws that are close to each other. A cam is provided between the mechanical claws and the magnetic cover plate. The center of the cam is connected to the output shaft of the first motor. The first motor is fixedly connected to the magnetic cover plate. Four arc-shaped guide grooves are provided on the cam corresponding to the driven rod. One end of the guide groove is close to the center of the cam, and the other end is away from the center of the cam. The driven rod is inserted into the guide groove. A cross-shaped bracket is provided between the mechanical claws and the bricks. A limit groove is provided on the bracket corresponding to the mechanical claw to limit the movement trajectory of the mechanical claw.

3. The automatic sidewalk tile laying device according to claim 2 is characterized in that: The four guide grooves have ends close to the cam center located on the same circumference, and ends away from the cam center located on the same circumference.

4. The automatic sidewalk tile laying device according to claim 1 is characterized in that: The conveying device includes a plurality of rollers, the rollers are located at the bottom of the brick storage bin, the roller axes are perpendicular to the conveying direction of the brick storage bin, both ends of the rollers extend outward through the side walls of the brick storage bin, one end of the rollers is connected to the bearing seat, and the other end is connected to the first drive motor.

5. The automatic sidewalk tile laying device according to claim 1 is characterized in that: The center of the rotating disc is connected to the output shaft of the second driving motor, and the diameter of the rotating disc is greater than or equal to the width between the inner walls on both sides of the frame.

6. The automatic sidewalk tile laying device according to claim 1, characterized in that: The first pushing device includes a pushing arm, one side of the pushing arm is close to the brick, and the other side is provided with an eccentric wheel, the rotation point of the eccentric wheel is connected to the second motor, the pushing arm is provided with a limiting arm on the side close to the eccentric wheel, the limiting arm abuts against the outer side of the eccentric wheel, the pushing arm is provided with a reinforcing part on the side close to the main frame, a guide frame is provided on the main frame horizontally corresponding to the reinforcing part, the reinforcing part can slide along the guide frame, and an extrusion spring is provided between the end of the guide frame away from the eccentric wheel and the reinforcing part.

7. The automatic sidewalk tile laying device according to claim 1 is characterized in that: A pressure sensor is provided at the bottom of the brick supporting plate to sense the weight of the bricks on the brick supporting plate.

8. The automatic sidewalk tile laying device according to claim 1, characterized in that: A brick flipping system is provided between the magnetic track and the non-magnetic track. The brick flipping system includes a support rod, which passes through the conveying track. The support rod is perpendicular to the axis of the conveying track. One end of the support rod is connected to a third drive motor. Two groups of clamping assemblies are symmetrically provided on both sides of the support rod. The clamping assemblies can clamp bricks equipped with the magnetic cover plate.

9. The automatic sidewalk tile laying device according to claim 8, characterized in that: The clamping assembly includes a plurality of clamping rods symmetrically arranged up and down, and the distance between the upper and lower groups of the clamping rods is greater than or equal to the thickness of the brick on which the magnetic cover is assembled.

10. The automatic sidewalk tile laying device according to claim 1, characterized in that: Limiting plates are arranged on both sides of the track tapering section, and a plurality of pulleys are arranged on the side of the limiting plates close to the bricks.

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