Machine-made sand concrete conveying device

Abstract

The utility model provides a machine-made sand concrete conveying device. The machine-made sand concrete conveying device comprises a control panel. The control panel is installed on the side wall of the top end of the protection structure, and the supporting structure is installed at the bottom end of the outer cover; the conveying structure is meshed with the side wall of the gear; the extension structure is fixed on the top surface in one end of the outer cover; the scraping structure is transversely fixed on the inner side wall of one end of the outer cover; and the cleaning structure is mounted on the side wall of the middle part of the outer cover. The machine-made sand concrete conveying device has the advantages that concrete attached to the belt can be cleaned in time, the weight of the belt is reduced, and the conveying efficiency of the conveying device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of conveying devices, in particular to a machine-made sand concrete conveying device. Background Art

[0002] Artificial sand is artificial sand with a particle size less than 4.75mm, which is processed by the artificial sand production system. Due to the advantages of uniform particle size, good particle shape, reasonable grading, high degree of production automation and low cost, it is now more and more widely used in industries such as commercial concrete, dry-mixed mortar, and asphalt concrete. The application of artificial sand can reduce the amount of natural artificial sand mined, which has a positive effect on environmental protection and resource conservation and utilization.

[0003] Some existing machine-made sand concrete conveying devices are generally transported by belts. Since a certain amount of water needs to be added when mixing machine-made sand concrete, the concrete will have a strong adhesion when absorbing water. When conveyed by the belt, the mass of the concrete itself will squeeze the belt to cause it to deform downward, and the concrete will also adhere to the surface of the belt and is not easy to fall off, which will lead to waste of concrete. The attached concrete will also increase the weight of the belt, which will cause the belt to run poorly, thereby reducing the transportation efficiency of the conveying device.

[0004] Therefore, it is necessary to provide a new machine-made sand concrete conveying device to solve the above-mentioned technical problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a machine-made sand concrete conveying device which can timely clean the concrete attached to the belt, reduce the weight of the belt itself, and enhance the transportation efficiency of the conveying device.

[0006] The machine-made sand concrete conveying device provided by the utility model comprises: an operation panel; a protective structure, wherein the operation panel is mounted on the side wall at the top of the protective structure, wherein the protective structure comprises a feed hopper, an outer cover and a discharge port, wherein the operation panel is mounted on the side wall of the feed hopper, wherein the feed hopper is fixed to one end of the fixed surface of the outer cover, and wherein the discharge port is arranged on the bottom surface of the other end of the outer cover; a supporting structure, wherein the supporting structure is mounted on the bottom end of the outer cover, wherein the supporting structure comprises a support, a support platform, a first motor, a gear, a support cylinder and a rotating shaft, wherein the support platform is fixed to the support The side wall of the outer cover is supported by the support, the support supports the bottom end of the outer cover through the support platform, the first motor is installed on the side wall of the outer cover, the rotating shaft passes through the top end of the support horizontally, and the two ends of the rotating shaft respectively pass through the side walls of the outer cover, and are rotatably connected with the outer cover, and correspond to the position of the first motor, and one end of the first motor is connected to one end of the rotating shaft, a group of gears are respectively fixed at the positions close to the support at both ends of the rotating shaft, and the support cylinder is fixed to the center position of the rotating shaft; a conveying structure, the conveying structure meshing The conveying structure comprises a transmission belt, a conveying belt and a tooth groove, the inner side walls of the edges at both ends of the transmission belt are provided with the tooth groove, the gear and the tooth groove are meshed with each other, and the distance between the two groups of the tooth groove is equal to the distance between the two groups of the gears, and the conveying belt is fixed to the surface of the transmission belt; a positioning structure, the positioning structure is transversely fixed to the inner side wall of the outer cover; an extension structure, the extension structure is fixed to the top surface inside one end of the outer cover, the extension structure comprises a fixing rod and a positioning roller, the fixing rod is provided with two groups, The two groups of fixed rods are fixed on the top surface inside one end of the outer cover in a relative manner, and the positioning roller is rotatably connected between the bottom ends of the two fixed rods; a scraping structure, the scraping structure is transversely fixed to the inner wall of one end of the outer cover, the scraping structure includes a scraper, a positioning plate and a spring, the positioning plate is fixed to the inner wall of one end of the outer cover, the scraper is slidably connected to the top surface of the positioning plate, and the spring is supported on the bottom end of the scraper and the bottom surface inside the positioning plate; a cleaning structure, the cleaning structure is installed on the side wall in the middle of the outer cover.

[0007] Preferably, the positioning structure further comprises a positioning frame, a bracket and a support roller, the positioning frame is transversely fixed to the inner side wall of the outer cover, the bracket is equidistantly fixed to the surface of the positioning frame, and the support roller is rotatably connected to the side wall of the bracket.

[0008] Preferably, the top height of the support roller is level with the top height of the support tube, the length of the support roller is equal to the length of the support tube, and the side walls of the support roller and the support tube both abut against the inner wall of the transmission belt.

[0009] Preferably, the thickness at both ends of the transmission belt is greater than the thickness in the middle, and the width in the middle of the transmission belt corresponds to the support tube, and the first motor drives the transmission belt to rotate by driving the rotating shaft to rotate through the engagement of the gear and the tooth groove, and one end of the transmission belt abuts against the side wall of the positioning roller, and the length of the positioning roller is the same as that of the support roller and the support tube, and the top height thereof is level with that of the support roller and the support tube.

[0010] Preferably, the cleaning structure also includes a second motor, a through pipe, a cleaning brush and a connecting pipe, the second motor is installed on the side wall of the middle bottom end of the outer cover, the through pipe penetrates the side wall of the middle bottom end of the outer cover and is rotatably connected to the outer cover, the cleaning brush is fixed to the side wall of the through pipe, and the connecting pipe is rotatably connected to one end of the through pipe.

[0011] Preferably, the shape of the conveyor belt is concave, and the thickness from the outside of the cleaning brush to the through tube is greater than the depth of the conveyor belt, and the length of the cleaning brush corresponds to the width inside the conveyor belt, and the cleaning brush abuts against the side wall of the conveyor belt.

[0012] Preferably, a through hole is provided on the side wall of the through pipe to which one end of the cleaning brush is fixed, and one end of the through pipe is connected to one end of the connecting pipe, and the other end of the connecting pipe passes through the side wall of the outer cover and is fixed to the side wall of the outer cover.

[0013] Preferably, the shape of the top end of the scraper is trapezoidal, and the maximum width of the scraper is greater than the width of the positioning plate, and the top end length of the scraper corresponds to the width inside the conveyor belt, and the top end of the scraper is in contact with the side wall of the conveyor belt, and the space between the positioning plate and the outer cover is the discharge port.

[0014] Compared with the related art, the machine-made sand concrete conveying device provided by the utility model has the following beneficial effects:

[0015] The utility model provides a machine-made sand concrete conveying device, firstly, the support structure and the cleaning structure can be independently controlled through the control panel, so that the support structure and the cleaning structure can operate independently, and the support structure can support and position the protection structure so that the protection structure is erected, and the first motor and the second motor are connected to an external power supply. Under the control of the control panel, the support structure will drive the conveying structure to rotate, and then transport the introduced machine-made sand concrete. Under the support of the positioning structure, the conveying structure will maintain a flat state, transport the machine-made sand concrete to the other end for export, and the extension structure will transfer the conveying structure One end of the cleaning structure is extended so that it is directly above the discharge port. After the machine-made sand concrete is discharged, the scraping structure will scrape the inside thereof to clean the adsorbed machine-made sand concrete, thereby reducing the burden on the conveying structure itself. Then, an external water source is connected to one end of the cleaning structure to lead the water source into the inside of the cleaning structure. Under the drive of the second motor, the cleaning structure will wash the inside of the conveying structure after the machine-made sand concrete is discharged, thereby further keeping the inner side of the conveyor belt clean, thereby reducing the load on the conveyor belt. This device has the advantages of being able to clean the concrete attached to the belt in time, reducing the weight of the belt itself, and enhancing the transportation efficiency of the conveying device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A structural schematic diagram of a preferred embodiment of the machine-made sand concrete conveying device provided by the utility model;

[0017] Figure 2 for Figure 1 The structural schematic diagram of the overall front view section shown;

[0018] Figure 3 for Figure 2 A schematic structural diagram of a three-dimensional display of the supporting structure shown;

[0019] Figure 4 for Figure 2 The schematic diagram of the structure of the conveying structure shown is a side view of the transmission section;

[0020] Figure 5 for Figure 2 The schematic structural diagram of the cleaning structure shown in the side view of the transmission section;

[0021] Figure 6 for Figure 2 A schematic structural diagram of the extended structural support section shown;

[0022] Figure 7 for Figure 2 The enlarged structural diagram of the A part shown;

[0023] Figure 8 for Figure 6 The enlarged structural diagram of part B shown;

[0024] Fig. 9 for Figure 5 The structural schematic diagram of the three-dimensional display of the joint connection shown.

[0025] Numbers in the figure: 1. control panel, 2. protection structure, 21. feed hopper, 22. outer cover, 23. discharge port, 3. support structure, 31. support, 32. support platform, 33. first motor, 34. gear, 35. support cylinder, 36. rotating shaft, 4. cleaning structure, 41. second motor, 42. through pipe, 43. cleaning brush, 44. connecting pipe, 5. positioning structure, 51. positioning frame, 52. bracket, 53. supporting roller, 6. conveying structure, 61. transmission belt, 62. conveyor belt, 63. tooth groove, 7. scraping structure, 71. scraper, 72. positioning plate, 73. spring, 8. extension structure, 81. fixing rod, 82. positioning roller. DETAILED DESCRIPTION

[0026] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0027] Please refer to Figure 1 — Fig. 9 ,in Figure 1 A structural schematic diagram of a preferred embodiment of the machine-made sand concrete conveying device provided by the utility model; Figure 2 for Figure 1 The structural schematic diagram of the overall front view section shown; Figure 3 for Figure 2 A schematic structural diagram of a three-dimensional display of the supporting structure shown; Figure 4 for Figure 2 The schematic diagram of the structure of the conveying structure shown is a side view of the transmission section; Figure 5 for Figure 2 The schematic structural diagram of the cleaning structure shown in the side view of the transmission section; Figure 6 for Figure 2 A schematic structural diagram of the extended structural support section shown; Figure 7 for Figure 2 The enlarged structural diagram of the A part shown; Figure 8 for Figure 6 The enlarged structural diagram of part B shown; Fig. 9 for Figure 5The structural schematic diagram of the three-dimensional display of the joint connection shown in the figure, the machine-made sand concrete conveying device includes: an operation panel 1; a protective structure 2, the operation panel 1 is installed on the side wall of the top of the protective structure 2, the protective structure 2 includes a feed hopper 21, an outer cover 22 and a discharge port 23, the operation panel 1 is installed on the side wall of the feed hopper 21, the feed hopper 21 is fixed to one end of the fixed surface of the outer cover 22, and the discharge port 23 is arranged on the bottom surface of the other end of the outer cover 22; a supporting structure 3, the supporting structure 3 is installed at the bottom end of the outer cover 22, the supporting structure 3 includes a support 31, a support platform 32, a first motor 33, a gear 34, a support cylinder 35 and a rotating shaft 36, the support platform The first motor 33 is mounted on the side wall of the outer cover 22, and the rotating shaft 36 passes through the top of the support 31 in a horizontal direction, and the two ends of the rotating shaft 36 pass through the side wall of the outer cover 22 respectively, and are rotatably connected with the outer cover 22, and correspond to the position of the first motor 33, and one end of the first motor 33 is connected to one end of the rotating shaft 36, and a group of gears 34 are fixed at the positions close to the support 31 at both ends of the rotating shaft 36, and the supporting cylinder 35 is fixed to the center position of the rotating shaft 36; the conveying structure 6, the The conveying structure 6 is meshed with the side wall of the gear 34, and the conveying structure 6 includes a transmission belt 61, a conveying belt 62 and a tooth groove 63. The inner side walls of the edges of both ends of the transmission belt 61 are provided with the tooth groove 63. The gear 34 and the tooth groove 63 are meshed with each other, and the distance between the two groups of the tooth grooves 63 is equal to the distance between the two groups of the gears 34. The conveying belt 62 is fixed to the surface of the transmission belt 61; a positioning structure 5, the positioning structure 5 is transversely fixed to the inner side wall of the outer cover 22; an extension structure 8, the extension structure 8 is fixed to the top surface inside one end of the outer cover 22, and the extension structure 8 includes a fixing rod 81 and a positioning roller 82, the fixing rod 81 There are two groups, and the two groups of fixed rods 81 are fixed on the top surface inside one end of the outer cover 22 in a relative manner, and the positioning roller 82 is rotatably connected between the bottom ends of the two fixed rods 81; the scraping structure 7, the scraping structure 7 is transversely fixed to the inner wall of one end of the outer cover 22, the scraping structure 7 includes a scraper 71, a positioning plate 72 and a spring 73, the positioning plate 72 is fixed to the inner wall of one end of the outer cover 22, the scraper 71 is slidably connected to the top surface of the positioning plate 72, and the spring 73 is supported on the bottom end of the scraper 71 and the bottom surface inside the positioning plate 72; the cleaning structure 4, the cleaning structure 4 is installed on the side wall in the middle of the outer cover 22.

[0028] In the specific implementation process, Figure 2As shown, the positioning structure 5 also includes a positioning frame 51, a bracket 52 and a support roller 53. The positioning frame 51 is transversely fixed to the inner side wall of the outer cover 22, the bracket 52 is equidistantly fixed to the surface of the positioning frame 51, and the support roller 53 is rotatably connected to the side wall of the bracket 52; the top height of the support roller 53 is level with the top height of the support tube 35, and the length of the support roller 53 is equal to the length of the support tube 35, and the side walls of the support roller 53 and the support tube 35 are both in contact with the inner side wall of the transmission belt 61 The thickness at both ends of the transmission belt 61 is greater than the thickness in the middle, and the width in the middle of the transmission belt 61 corresponds to the support tube 35, and the first motor 33 drives the rotating shaft 36 to rotate, and drives the transmission belt 61 to rotate through the engagement of the gear 34 with the tooth groove 63, and one end of the transmission belt 61 abuts against the side wall of the positioning roller 82, and the length of the positioning roller 82 is the same as that of the support roller 53 and the support tube 35, and the top height thereof is level with that of the support roller 53 and the support tube 35, respectively.

[0029] The support roller 53 and the support cylinder 35 are convenient for supporting the bottom surface of the transmission belt 61, so that the conveyor belt 62 will not be deformed due to weight when transporting concrete, and the conveyor belt 62 supported by the support roller 53 and the support cylinder 35 always maintain a flat state.

[0030] In the specific implementation process, Figure 1 , Figure 2 , Figure 5 , Figure 7 and Fig. 9 As shown, the cleaning structure 4 also includes a second motor 41, a through pipe 42, a cleaning brush 43 and a connecting pipe 44, the second motor 41 is installed on the side wall of the middle bottom end of the outer cover 22, the through pipe 42 penetrates the side wall of the middle bottom end of the outer cover 22, and is rotatably connected to the outer cover 22, the cleaning brush 43 is fixed to the side wall of the through pipe 42, and the connecting pipe 44 is rotatably connected to one end of the through pipe 42; the shape of the conveyor belt 62 is concave, and the thickness from the outside of the cleaning brush 43 to the through pipe 42 is greater than the depth of the conveyor belt 62, and the length of the cleaning brush 43 corresponds to the width inside the conveyor belt 62, and the cleaning brush 43 is in contact with the side wall of the conveyor belt 62; the side wall of the through pipe 42 at one end of which the cleaning brush 43 is fixed is provided with a through hole, and one end of the through pipe 42 is connected to one end of the connecting pipe 44, and the other end of the connecting pipe 44 penetrates the side wall of the outer cover 22 and is fixed to the side wall of the outer cover 22.

[0031] It is convenient to control the second motor 41 through the control panel to drive the through pipe 42 to rotate, and then connect the other end of the connecting pipe 44 to a water source, so that the water source can enter the interior of the through pipe 42 through the connecting pipe 44, and then flow out through the through hole provided on the side wall thereof, and be absorbed by the cleaning brush 43, so that it can clean the conveyor belt 62.

[0032] In the specific implementation process, Figure 2 and Figure 6 As shown, the shape of the top end of the scraper 71 is trapezoidal, and the maximum width of the scraper 71 is greater than the width of the positioning plate 72, and the top end length of the scraper 71 corresponds to the width inside the conveyor belt 62, and the top end of the scraper 71 is in contact with the side wall of the conveyor belt 62, and the space between the positioning plate 72 and the outer cover 22 is the discharge port 23.

[0033] This facilitates the scraper 71 to have its top end abut against the side wall of the conveyor belt 62 under the support of the spring 73 , thereby scraping off the concrete stuck on the side wall of the conveyor belt 62 .

[0034] The working principle of the machine-made sand concrete conveying device provided by the utility model is as follows:

[0035] When in use, firstly, the mixed machine-made sand concrete is introduced into the feed hopper 21, and guided to the conveyor belt 62 for transportation, the first motor 33 and the second motor 41 are connected to an external power supply, and then the first motor 33 and the second motor 41 are controlled to operate through the control panel 1, the operation of the first motor 33 drives the rotating shaft 36 to rotate on the support 31, and then drives the gear 34 and the support cylinder 35 to rotate, wherein the gear 34 drives the transmission belt 61 meshing therewith to rotate, and the support cylinder 35 is supported on the bottom surface of the transmission belt 61, so that the conveyor belt 62 fixed on the surface of the transmission belt 61 is supported flat by the support cylinder 35, and under the drive of the gear 34, the conveyor belt 62 drives the placed machine-made sand concrete to move, and the middle part of the transmission belt 61 is supported by the support roller 53, so that the middle part of the transmission belt 61 can be flush with the two ends, and under the extension of the positioning roller 82, the The other end of the conveyor belt 62 is located directly above the discharge port 23. The conveyor belt 62 rotates to transport the loaded machine-made sand concrete to the discharge port 23 and discharge it from the discharge port 23. Then, the scraper 71 supported by the spring 73 scrapes the side wall of the conveyor belt 62 to scrape off the machine-made sand concrete adsorbed on the conveyor belt 62. Then, one end of the connecting pipe 44 is connected to an external water source so that the water source can enter the interior of the through pipe 42 through the connecting pipe 44, and then flow out through the through hole provided on its side wall and be absorbed by the cleaning brush 43. Driven by the second motor 41, the through pipe 42 drives the cleaning brush 43 to continuously roll and brush on the inner side of the conveyor belt 62, thereby making it clean the conveyor belt 62, so that the inner side of the conveyor belt 62 remains clean, thereby reducing the load of the conveyor belt 62. This device has the advantages of being able to clean the concrete attached to the belt in time, reducing the weight of the belt itself, and enhancing the transportation efficiency of the conveying device.

[0036] Compared with the related art, the machine-made sand concrete conveying device provided by the utility model has the following beneficial effects:

[0037] The utility model provides a machine-made sand concrete conveying device, firstly, the support structure 3 and the cleaning structure 4 can be separately controlled by the control panel 1, so that the support structure 3 and the cleaning structure 4 can operate independently, and the support structure 3 can support and position the protection structure 2, so that the protection structure 2 is erected, and the first motor 33 and the second motor 41 are connected to an external power supply. Under the control of the control panel 1, the support structure 3 will drive the conveying structure 6 to rotate, and then transport the introduced machine-made sand concrete. Under the support of the positioning structure 5, the conveying structure 6 will maintain a flat state, transport the machine-made sand concrete to the other end for export, and the extension structure 8 will convey the conveying structure 6 to the other end for export. One end of the structure 6 is extended so that it is directly above the discharge port 23. After the machine-made sand concrete is discharged, the scraping structure 7 will scrape the inside thereof to clean the adsorbed machine-made sand concrete, thereby reducing the burden on the conveying structure 6 itself. Then, an external water source is connected to one end of the cleaning structure 4 to lead the water source into the inside of the cleaning structure 4. Driven by the second motor 41, the cleaning structure 4 will wash the inside of the conveying structure 6 after the machine-made sand concrete is discharged, thereby further keeping the inner side of the conveyor belt 62 clean, thereby reducing the load on the conveyor belt 62. This device has the advantages of being able to clean the concrete attached to the belt in time, reducing the weight of the belt itself, and enhancing the transportation efficiency of the conveying device.

[0038] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A machine-made sand concrete conveying device, characterized in that: include: Control panel (1); A protective structure (2), wherein the control panel (1) is mounted on a side wall at the top of the protective structure (2), the protective structure (2) comprises a feed hopper (21), an outer cover (22) and a discharge port (23), the control panel (1) is mounted on the side wall of the feed hopper (21), the feed hopper (21) is fixed to one end of a fixed surface of the outer cover (22), and the discharge port (23) is arranged on the bottom surface of the other end of the outer cover (22); A support structure (3), wherein the support structure (3) is mounted on the bottom end of the outer cover (22), the support structure (3) comprises a support seat (31), a support platform (32), a first motor (33), a gear (34), a support cylinder (35) and a rotating shaft (36), wherein the support platform (32) is fixed to a side wall of the support seat (31), the support seat (31) supports the bottom end of the outer cover (22) via the support platform (32), the first motor (33) is mounted on the side wall of the outer cover (22), and the rotating shaft (36) is transversely The rotating shaft (36) is connected to the top of the support (31), and the two ends of the rotating shaft (36) respectively pass through the side walls of the outer cover (22) and are rotatably connected to the outer cover (22), and correspond to the position of the first motor (33), and one end of the first motor (33) is connected to one end of the rotating shaft (36), and a group of gears (34) are respectively fixed at positions close to the support (31) at both ends of the rotating shaft (36), and the supporting tube (35) is fixed to the center position of the rotating shaft (36); A conveying structure (6), wherein the conveying structure (6) is meshed with a side wall of the gear (34), the conveying structure (6) comprises a transmission belt (61), a conveyor belt (62) and a tooth groove (63), the tooth groove (63) being provided on the inner side walls of the edges at both ends of the transmission belt (61), the gear (34) and the tooth groove (63) being meshed with each other, and the distance between the two groups of the tooth groove (63) is equal to the distance between the two groups of the gears (34), and the conveyor belt (62) is fixed to the surface of the transmission belt (61); A positioning structure (5), the positioning structure (5) being laterally fixed to an inner side wall of the outer cover (22); An extension structure (8), the extension structure (8) being fixed to the top surface inside one end of the outer cover (22), the extension structure (8) comprising a fixing rod (81) and a positioning roller (82), the fixing rod (81) being provided with two groups, and the two groups of the fixing rods (81) being fixed to the top surface inside one end of the outer cover (22) in an opposed manner, and the positioning roller (82) being rotatably connected between the bottom ends of the two fixing rods (81); a scraping structure (7), the scraping structure (7) being laterally fixed to the inner side wall of one end of the outer cover (22), the scraping structure (7) comprising a scraper (71), a positioning plate (72) and a spring (73), the positioning plate (72) being fixed to the inner side wall of one end of the outer cover (22), the scraper (71) being slidably connected to the inside of the top surface of the positioning plate (72), and the spring (73) being supported by the bottom end of the scraper (71) and the bottom surface inside the positioning plate (72); A cleaning structure (4), wherein the cleaning structure (4) is installed on a side wall in the middle of the outer cover (22).

2. The machine-made sand concrete conveying device according to claim 1 is characterized in that: The positioning structure (5) further comprises a positioning frame (51), a bracket (52) and a support roller (53); the positioning frame (51) is transversely fixed to the inner side wall of the outer cover (22); the bracket (52) is equidistantly fixed to the surface of the positioning frame (51); and the support roller (53) is rotatably connected to the side wall of the bracket (52).

3. The machine-made sand concrete conveying device according to claim 2 is characterized in that: The top height of the support roller (53) is flush with the top height of the support tube (35), the length of the support roller (53) is equal to the length of the support tube (35), and the side walls of the support roller (53) and the support tube (35) both abut against the inner side wall of the transmission belt (61).

4. The machine-made sand concrete conveying device according to claim 2 is characterized in that: The thickness of the transmission belt (61) at both ends is greater than the thickness in the middle, and the width in the middle of the transmission belt (61) corresponds to the support tube (35), and the first motor (33) drives the rotating shaft (36) to rotate, and drives the transmission belt (61) to rotate through the engagement of the gear (34) and the tooth groove (63), and one end of the transmission belt (61) abuts against the side wall of the positioning roller (82), and the length of the positioning roller (82) is respectively the same as that of the support roller (53) and the support tube (35), and the top height thereof is respectively flush with that of the support roller (53) and the support tube (35).

5. The machine-made sand concrete conveying device according to claim 1 is characterized in that: The cleaning structure (4) further comprises a second motor (41), a through pipe (42), a cleaning brush (43) and a connecting pipe (44); the second motor (41) is mounted on the side wall at the middle bottom end of the outer cover (22); the through pipe (42) penetrates the side wall at the middle bottom end of the outer cover (22) and is rotatably connected to the outer cover (22); the cleaning brush (43) is fixed to the side wall of the through pipe (42); and the connecting pipe (44) is rotatably connected to one end of the through pipe (42).

6. The machine-made sand concrete conveying device according to claim 5, characterized in that: The conveyor belt (62) is concave in shape, and the thickness from the outside of the cleaning brush (43) to the through tube (42) is greater than the depth of the conveyor belt (62), and the length of the cleaning brush (43) corresponds to the width inside the conveyor belt (62), and the cleaning brush (43) abuts against the side wall of the conveyor belt (62).

7. The machine-made sand concrete conveying device according to claim 5, characterized in that: A through hole is provided on the side wall of the through pipe (42) to which one end of the cleaning brush (43) is fixed, and one end of the through pipe (42) is connected to one end of the connecting pipe (44), and the other end of the connecting pipe (44) passes through the side wall of the outer cover (22) and is fixed to the side wall of the outer cover (22).

8. The machine-made sand concrete conveying device according to claim 1, characterized in that: The shape of the top end of the scraper (71) is trapezoidal, and the maximum width of the scraper (71) is greater than the width of the positioning plate (72), and the length of the top end of the scraper (71) corresponds to the width inside the conveyor belt (62), and the top end of the scraper (71) abuts against the side wall of the conveyor belt (62), and the space between the positioning plate (72) and the outer cover (22) is the discharge port (23).

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