Fiber dispersing device for concrete processing

Abstract

The invention relates to the technical field of concrete, in particular to a fiber dispersing device for concrete processing, which comprises a stirring machine, a feeding part and a material distribution cylinder, vertical plates are fixed at the left and right ends of the top of the stirring machine, the feeding part comprises a shell and a movable column, and the opening end of the shell penetrates through the vertical plate on the left side; the top of the shell communicates with a discharging hopper, one end of a movable column movably stretches into the shell, the other end of the movable column stretches out of the shell, a through hole is formed in the movable column, a movable plate is rotationally arranged in the through hole, a rotating rod is fixed to the right end of the movable plate, a driving cylinder is connected to the position, on the right side of the through hole, in the movable column, and the right end of the rotating rod stretches into the driving cylinder. A material distribution cylinder is rotationally connected between the two vertical plates; driving parts are arranged on the two vertical plates and are used for driving the movable column to move left and right and driving the material distributing cylinder to swing front and back. The technical problem that when steel fibers are doped in the concrete preparation process, an existing stirring device cannot ensure that the steel fibers are uniformly dispersed in the concrete is solved.

Description

Technical Field

[0001] This invention relates to the field of concrete technology, and more specifically to a fiber dispersion device for concrete processing. Background Technology

[0002] Concrete, as an important building material, is typically formed by mixing cementitious materials, aggregates, and water in a certain proportion and then hardening it. Due to its combination of strength and durability, it is widely used in the field of construction engineering. Because ordinary concrete will generate micro-cracks due to shrinkage during hardening, making it prone to fracture under stress, steel fibers are usually added during concrete mixing to improve its crack resistance and toughness. These steel fibers can form a three-dimensional network structure inside the concrete, bridging the cracks on both sides like micro-reinforcing bars. They can prevent the cracks from expanding further when the concrete is about to crack or when cracks have just formed, and can even inhibit the formation of micro-cracks. Moreover, steel fibers can absorb the impact energy of vehicles running over them or heavy objects hitting them, making them suitable for high-frequency stress scenarios such as road surfaces, airport runways, and industrial floors.

[0003] If steel fibers are not evenly distributed in concrete, they cannot form a continuous network structure. As a result, when cracks propagate, the steel fibers in the accumulation area cannot effectively bear the force. Concrete without steel fibers is unable to prevent crack propagation. Ultimately, under external force, the concrete can only break directly and cannot dissipate energy through the deformation and slippage of steel fibers, resulting in a significant reduction in toughness. The patent announcement CN221793270U, ​​"A Fiber Dispersion Device for the Preparation of Ultra-High Performance Concrete," emphasizes that unevenly dispersed steel fibers in concrete will affect the toughness and durability of concrete, thus affecting its quality.

[0004] Therefore, the uniformity of steel fiber distribution in concrete is crucial to the quality of concrete. However, the current method of adding steel fiber is generally to pour it in as a whole, which makes it difficult to ensure the uniformity of steel fiber addition. Although mixing devices are usually used for mixing, it is still impossible to guarantee that the steel fiber is evenly dispersed in the concrete. Summary of the Invention

[0005] To address the technical problem that existing mixing devices cannot guarantee the uniform dispersion of steel fibers in concrete during the preparation process, this invention provides a fiber dispersion device for concrete processing, which can uniformly disperse steel fibers in concrete during the feeding process.

[0006] To solve the above problems, the technical solution of the present invention is: A fiber dispersion device for concrete processing includes a mixer, a feeding component, and a feeding cylinder. Vertical plates are fixed to the left and right ends of the top of the mixer. The feeding component includes a shell and a movable column. The open end of the shell passes through and is fixed to the left vertical plate. A hopper is connected to the top of the shell. One end of the movable column extends movably into the shell, and the other end extends out of the shell. A through hole is provided on the movable column, and a movable plate is rotatably disposed within the through hole. The movable plate is used to block and open the lower opening of the through hole. A rotating rod is fixed to the right end of the movable plate. A left-right moving drive cylinder is elastically connected within the movable column on the right side of the through hole. The right end of the rotating rod extends into the drive cylinder, and a groove is provided on the peripheral wall of the rotating rod. A drive column with its end extending into the groove is provided on the drive cylinder. A feeding cylinder is rotatably connected between the two vertical plates, and the feeding cylinder is sleeved around the movable column with an open lower end. Driving components are provided on the two vertical plates to drive the movable column to move left and right and the feeding cylinder to swing back and forth.

[0007] Furthermore, the closed end of the housing is fixedly connected to the column, and the hopper is fixedly connected to the left vertical plate; the side of the movable column and the inner side of the housing are in sliding contact.

[0008] Furthermore, the left and right sides of the movable plate slide in contact with the left and right sides of the through hole, respectively. The left end of the movable plate is provided with a rotating shaft that is rotatably connected to the movable column. The rotating shaft and the rotating rod are coaxial. The front and rear sides of the movable plate are arc-shaped surfaces with opposite protrusions. When the movable plate is in a horizontal state, the opposite ends of the two arc-shaped surfaces contact the front and rear sides of the through hole, respectively.

[0009] Furthermore, a sliding hole is provided at the right end of the movable column, the left end of the drive cylinder extends into the sliding hole, the left end of the drive cylinder is connected to the left side of the sliding hole via a spring, and the left end of the rotating rod passes through the sliding hole and is fixedly connected to the movable plate.

[0010] Furthermore, the driving component includes a connecting block, a motor, and a lead screw body. The connecting block is fixedly mounted on the top of the movable column and located above the rotating rod. The two ends of the lead screw body are rotatably connected to two vertical plates, and the lead screw body is provided with a movable nut. The connecting block is fixedly sleeved on the movable nut. The lead screw body is driven by the motor to rotate and drive the movable nut to move back and forth along its axis.

[0011] Furthermore, each of the two upright plates has a bearing ring fixed on its opposite surface, and each bearing ring is located on the outer periphery of the movable column and the main body of the lead screw; the two ends of the fabric cylinder are respectively circumferentially slidably sleeved on the two bearing rings, the lower end of the peripheral wall of the fabric cylinder is provided with a discharge hole, the upper end of the peripheral wall of the fabric cylinder is provided with an inclined hole with the left end tilted forward, and the top of the connecting block is rotatably connected with a push rod, the free end of the push rod passing through the inclined hole.

[0012] Furthermore, when the movable nut moves to its left limit, the push rod is located at the left end of the inclined hole, the through hole is located inside the housing, the spring is in its natural state, and the movable plate is in a horizontal state; when the movable nut moves to the right until the drive cylinder contacts the right vertical plate, the left end of the through hole is flush with the right side of the left vertical plate; when the movable nut moves to its right limit, the push rod is located at the right end of the inclined hole, the right end face of the movable column contacts the right vertical plate, and the drive cylinder drives the movable plate to rotate 90 degrees; after it comes out of the housing through the through hole, the movable column on the left side of the through hole keeps the lower opening of the hopper blocked.

[0013] Furthermore, the lower side of the fabric cylinder is provided with a sleeve that connects to the discharge hole. A rotating cylinder is rotatably provided inside the sleeve. Both ends of the sleeve and the rotating cylinder are closed, and the upper and lower ends are open. The outer wall of the rotating cylinder slides in contact with the inner wall of the sleeve. The lower end opening of the rotating cylinder connects to the discharge cylinder. The lower end of the discharge cylinder extends out of the sleeve. The lower ends of the front and rear parts of the outer wall of the discharge cylinder are connected to counterweight rods. The width of the lower end opening of the sleeve is greater than the distance between the front and rear side plates of the discharge cylinder. When the fabric cylinder swings back and forth, the upper end opening of the rotating cylinder is always located inside the sleeve, and the lower end opening always faces downward.

[0014] Furthermore, the lower part of the fabric cylinder is provided with partitions at intervals, and the left and right ends of each partition are fixedly connected to the upright plates on both sides. The inner wall of the fabric cylinder is in sliding contact with the outer end of each partition, and the inner end of each partition faces the center of the fabric cylinder. Two adjacent partitions and the upright plates on both sides together form a feeding channel. When the through hole is located inside the fabric cylinder, the upper openings of multiple feeding channels are located directly below the through hole.

[0015] Furthermore, the width of the upper arc-shaped opening of the discharge hole is twice the width of the lower arc-shaped opening of the feeding channel. When the drive cylinder moves to the right until its end contacts the right side vertical plate, the front end of the discharge hole is flush with the rear side of the last side partition. The lower openings of multiple feeding channels are blocked, and the lower opening of the discharge cylinder is located above and behind the upper opening of the mixer.

[0016] The beneficial effects of the present invention through the above technical solution are as follows: 1. In use, the driving component drives the movable column to move to the left, filling the through hole with steel fibers from the hopper. The driving component then drives the movable column to move to the right, entering between the two vertical plates. The lower end of the through hole opens, and the steel fibers inside the through hole are discharged in a curtain-like manner. This invention can intermittently discharge steel fibers in a linear curtain-like manner, avoiding concentrated accumulation of steel fibers during discharge.

[0017] 2. During the left and right movement of the driven column, the feeding cylinder is driven to swing back and forth. The steel fibers fed through the through hole enter the feeding cylinder. The discharge cylinder is kept downward under the action of the counterweight rod. Moreover, the steel fibers in the feeding cylinder can be fed in batches, thereby ensuring that the steel fibers can cover the upper opening of the mixer. This invention can feed materials into the mixer evenly and also prevent the steel fibers from being thrown out of the mixer. The steel fibers are evenly sprinkled into the mixer with few dead corners and mixed with other raw materials in the mixer, which can improve the quality of concrete mixed with steel fibers. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 (Fabric tubes and partitions are concealed); Figure 3 This is a cross-sectional front view of the present invention (the cloth cylinder and mixer are hidden); Figure 4 yes Figure 3 A magnified view of a section at point A in the middle; Figure 5 This is a schematic diagram of the connection between the movable plate, rotating rod, and drive cylinder of the present invention; Figure 6 This is a right-side sectional view of the present invention; Figure 7 This is a schematic diagram of the structure of the rotary drum connected to the discharge cylinder of the present invention; Figure 8 This is a schematic diagram of the sleeve structure of the present invention; Figure 9 This is a schematic diagram of the structure of the partition connecting the vertical plate of the present invention.

[0019] The attached diagram is labeled as follows: 1. Mixer, 2. Feeding cylinder, 3. Vertical plate, 5. Shell, 6. Movable column, 7. Rotating rod, 8. Feed hopper, 9. Through hole, 10. Movable plate, 11. Inclined groove, 12. Sliding hole, 13. Drive cylinder, 14. Drive column, 15. Vertical column, 16. Rotating shaft, 17. Spring, 18. Connecting block, 19. Motor, 20. Lead screw body, 21. Movable nut, 22. Bearing ring, 23. Discharge hole, 24. Inclined hole, 25. Top rod, 26. Sleeve, 28. Rotating cylinder, 30. Discharge cylinder, 31. Counterweight rod, 32. Partition plate, 34. Tilting plate, 35. Cleaning port. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments: like Figures 1-9As shown, a fiber dispersion device for concrete processing includes a mixer 1, which is a twin-shaft horizontal mixer with an open top. It also includes a feeding component and a feeding cylinder 2. Vertical plates 3 are fixed to the left and right ends of the top of the mixer 1. The vertical plates 3 are rectangular plates. The feeding component includes a shell 5 and a movable column 6. The shell 5 is a hollow cuboid with one open end and the other closed end. The open end of the shell 5 passes through and is fixed to the left vertical plate 3. The closed end of the shell 5 is located outside the left vertical plate 3. A feeding hopper 8 is connected to the top of the shell 5. The feeding hopper 8 is a hollow truncated pyramid with a larger top and smaller bottom, and open at both ends. The movable column 6 is a rectangular column with one end extending into the shell 5 and the other end extending out of the shell 5. A through hole 9 is provided, which is a rectangular hole penetrating the upper and lower surfaces of the movable column 6. A movable plate 10 is rotatably installed inside the through hole 9. The movable plate 10 is used to block and open the lower opening of the through hole 9. A rotating rod 7 is fixed to the right end of the movable plate 10. The rotating rod is a round rod. A drive cylinder 13 that moves left and right is elastically connected inside the movable column 6 on the right side of the through hole 9. The right end of the rotating rod 7 extends into the drive cylinder 13. A sloping groove 11 is recessed on the peripheral wall of the rotating rod 7. The sloping groove 11 is a long strip-shaped groove. A drive column 14 with its end extending into the sloping groove 11 is provided on the drive cylinder 13. A cloth cylinder 2 is rotatably connected between the two upright plates 3. The cloth cylinder 2 is sleeved outside the movable column 6 and has an open lower end. A drive component is provided on the two upright plates 3. The drive component is used to drive the movable column 6 to move left and right and the cloth cylinder 2 to swing back and forth.

[0021] The bottom of the closed end of the housing 5 is supported by the column 15, and the hopper 8 is fixedly connected to the left side plate 3; the side of the movable column 6 and the inner side of the housing 5 are in sliding contact.

[0022] The left and right sides of the movable plate 10 slide in contact with the left and right sides of the through hole 9, respectively. The left end of the movable plate 10 is connected to a rotating shaft 16, which is rotatably connected to the movable column 6 via a bearing. The rotating shaft 16 and the rotating rod 7 are coaxial. The front and rear sides of the movable plate 10 are arc-shaped surfaces with opposite protrusions. When the movable plate 10 is in a horizontal state, the opposite ends of the two arc-shaped surfaces contact the front and rear sides of the through hole 9, respectively.

[0023] The right end face of the movable column 6 has a recessed sliding hole 12, which is a rectangular hole. The drive cylinder 13 is a cylindrical body with a square outer surface and a round inner surface. The left end of the drive cylinder 13 slides into the sliding hole 12, and the outer side of the drive cylinder 13 slides in contact with the inner wall of the sliding hole 12. The left end of the drive cylinder 13 is connected to the left side of the sliding hole 12 via a spring 17. When the spring 17 is in its natural state, the right end of the drive cylinder 13 is located outside the movable column 6. The peripheral wall of the rotating rod 7 slides in contact with the inner wall of the drive cylinder 13. The drive column 14 is a round rod with a diameter that matches the width of the inclined groove 11. The drive column 14 passes through and is fixedly connected to the drive cylinder 13. The left end of the rotating rod 7 passes through the sliding hole 12 and is fixedly connected to the movable plate 10.

[0024] The driving component includes a connecting block 18, a motor 19, and a lead screw body 20. The connecting block 18 is located above the rotating rod 7 and is fixedly connected to the top surface of the movable column 6. The two ends of the lead screw body 20 are rotatably connected to the two vertical plates 3 via bearings, and the lead screw body 20 is provided with a movable nut 21. The connecting block 18 is fixedly sleeved on the movable nut 21. The motor 19 drives the lead screw body 20 to rotate. The motor 19 is fixed to the outside of the right vertical plate 3. The output end of the motor 19 is connected to the end of the lead screw body 20. The lead screw body 20 drives the movable nut 21 to move back and forth along its axis. The reciprocating lead screw composed of the lead screw body and the movable nut selected in this invention is a reciprocating lead screw of model 2502 produced by Wuhan Langxing Technology Development Co., Ltd. When the lead screw body 20 rotates in one direction, it can drive the movable nut 21 to move back and forth.

[0025] Each of the two upright plates 3 has a bearing ring 22 fixed on its opposite surface. The fabric cylinder 2 is a cylinder with open ends. The bearing ring 22 is a ring with an outer diameter that matches the inner diameter of the fabric cylinder 2. Each bearing ring 22 is located on the outer periphery of the movable column 6 and the lead screw body 20. The two ends of the fabric cylinder 2 are respectively circumferentially slidably sleeved on the two bearing rings 22. The lower end of the peripheral wall of the fabric cylinder 2 is provided with a discharge hole 23. The discharge hole 23 is a rectangular hole opened along the length of the fabric cylinder 2. The upper end of the peripheral wall of the fabric cylinder 2 is provided with an inclined hole 24 with the left end tilted forward. The inclined hole 24 is a rectangular hole with a cross section opened along the length of the fabric cylinder 2. The top of the connecting block 18 is rotatably connected to a top rod 25 via a bearing. The free end of the top rod 25 passes through the inclined hole 24. The top rod 25 is a round rod with a diameter that matches the width of the inclined hole 24.

[0026] When the movable nut 21 moves to its left limit, the push rod 25 is located at the left end of the inclined hole 24, the through hole 9 is located inside the housing 5, the spring 17 is in its natural state, and the movable plate 10 is in a horizontal state; when the movable nut 21 moves to the right until the drive cylinder 13 contacts the right side of the vertical plate 3, the left end of the through hole 9 is flush with the right side of the left side of the vertical plate 3; when the movable nut 21 moves to its right limit, the push rod 25 is located at the right end of the inclined hole 24, the right end face of the movable column 6 contacts the right side of the vertical plate 3, and the drive cylinder 13 drives the movable plate 10 to rotate 90 degrees (the right end face of the push rod 25 is flush with the right side of the vertical plate 3). (There is a gap on the right end face of the movable column 6); after the movable column 6 is removed from the housing through the through hole 9, the movable column 6 on the left side of the through hole 9 keeps the lower opening of the hopper 8 blocked; the closed end of the housing 5 is provided with a cleaning port 35, and a flipping plate 34 is hinged in the cleaning port 35. When the movable column 6 moves to the left to its limit, there is a gap between the left end of the movable column 6 and the cleaning port 35. Flipping the flipping plate 34 opens the cleaning port, which can clean the steel fibers that have fallen into the housing on the left side of the movable column 6, so as to avoid the steel fibers from accumulating in the housing 5 for a long time and affecting the stroke of the movable column 6.

[0027] The lower side of the fabric cylinder 2 is provided with a sleeve 26 that connects to the discharge hole 23. A rotating cylinder 28 is rotatably provided inside the sleeve 26. Both ends of the sleeve 26 and the rotating cylinder are closed, and the upper and lower ends are open. The outer wall of the rotating cylinder 28 slides in contact with the inner wall of the sleeve 26. The lower end opening of the rotating cylinder 28 connects to the discharge cylinder 30. The lower end of the discharge cylinder 30 extends out of the sleeve 26. The lower ends of the front and rear parts of the outer wall of the discharge cylinder 30 are connected to counterweight rods 31. The width of the lower end opening of the sleeve 26 is greater than the distance between the front and rear side plates of the discharge cylinder 30. When the fabric cylinder swings back and forth, the upper end opening of the rotating cylinder is always located inside the sleeve, and the lower end opening always faces downward.

[0028] The lower part of the fabric cylinder 2 is provided with partitions 32 arranged in a circumferential direction along the inner wall of the fabric cylinder 2. The partitions are rectangular plates. The left and right ends of each partition 32 are fixedly connected to the upright plates 3 on both sides. The inner wall of the fabric cylinder 2 is in sliding contact with the outer end of each partition. The inner end of each partition 32 faces the center of the fabric cylinder 2. Two adjacent partitions and the upright plates on both sides together form a feeding channel. When the through hole 9 is located inside the fabric cylinder 2, the upper openings of multiple feeding channels are located directly below the through hole 9.

[0029] The width of the upper arc-shaped opening of the discharge hole 23 is twice the width of the lower arc-shaped opening of the feeding channel. When the drive cylinder 13 moves to the right until its end contacts the right side vertical plate 3, the front end of the discharge hole 23 is flush with the rear side of the last side partition 32. The lower openings of multiple feeding channels are blocked, and the lower opening of the discharge cylinder 30 is located above the rear of the upper opening of the mixer 1.

[0030] In use, first, feed materials other than steel fibers into the mixer 1, and pre-mix them for a period of time. When steel fibers need to be added, the motor 19 drives the lead screw body 20 to rotate, and the lead screw body 20 drives the movable nut 21 to move to the left to its limit. The connecting block 18 drives the movable column 6 to move to the left to its limit along with the movable nut 21. At this time, the through hole 9 is located inside the housing 5, and the movable plate 10 is in a horizontal state, blocking the lower opening of the through hole 9. Steel fibers are then fed into the lower hopper 8. The steel fibers enter the through hole 9 through the lower opening of the lower hopper 8. Then, the motor 19... 9. The main body 20 of the drive screw rotates continuously, the movable nut 21 moves to the right, the connecting block 18 drives the movable column 6 to move to the right with the movable nut 21, the through hole 9 moves to the right with the movable column 6, the position of the through hole 9 at the lower opening of the hopper 8 is continuously filled with steel fiber until the through hole 9 comes out of the housing 5, the lower opening of the hopper 8 is blocked by the movable column 6, after the drive cylinder 13 contacts the right vertical plate 3, the movable column 6 continues to move to the right, the right end of the drive cylinder 13 is pressed by the right vertical plate 3, the drive cylinder 13 remains stationary, the rotating rod 7 moves to the right with the movable column 6, the rotating rod 7 The inclined groove 11 is pressed by the drive column 14 on the drive cylinder 13, the spring 17 is compressed, and the rotating rod 7 drives the movable plate 10 to rotate. During the rotation of the movable plate 10, the lower end opening of the through hole 9 gradually opens, and the steel fiber in the through hole 9 is fed out in a curtain-like manner through the lower end of the through hole 9 until the right end of the movable column 6 contacts the right side vertical plate 3. The movable plate 10 rotates 90 degrees to a vertical position, and the lower end opening of the through hole 9 is opened to its maximum. After the movable column 6 moves to the right to its limit, the drive component drives the movable column 6 to move to the left. When the spring 17 returns to its natural state, the drive cylinder 13... When the right end detaches from the right side upright plate 3, the rotating rod 7 reverses to its initial state, the movable plate 10 returns to a horizontal state, and the lower opening of the through hole 9 is blocked. During the movement of the movable column 6 to the left, the closed through hole 9 gradually enters the housing 5 and is used again to receive the steel fibers falling from the hopper 8. When the movable column 6 moves to the right again, the steel fibers in the through hole 9 will move between the two upright plates 3. Therefore, when the driving component drives the movable column 6 to move to the left, the steel fibers can enter the through hole 9, and when it moves to the right, the steel fibers can be discharged in a straight curtain shape between the two upright plates 3. During the above process, the connecting block 18 drives the top rod 25 to reciprocate left and right. Since the left end of the inclined hole 24 where the top rod 25 is located is tilted forward, the top rod 25 guides the cloth cylinder 2, which is rotatably connected between the two vertical plates 3, to swing back and forth. The lower end of the cloth cylinder 2 is connected to the sleeve 26, and the rotating cylinder 28 is rotatably located inside the sleeve 26. The discharge cylinder 30 connected to the lower end of the rotating cylinder 28 is equipped with a counterweight rod 31. When the cloth cylinder 2 swings back and forth, the counterweight rod 31 can keep the discharge cylinder 30 in an open-down state under its own weight. The material curtain falling through the through hole 9 can cover the length direction of the cloth cylinder 2 and enter the cloth cylinder 2. The steel fibers entering the cloth cylinder 2 enter multiple discharge channels respectively. During the movement of the movable column 6 to the right, when the drive cylinder 13 moves to the right with the movable column 6 and contacts the right vertical plate 3, the cloth cylinder 2 swings backward to the front end and the rear end of the discharge hole 23. The rear side of the partition 32 is flush with the bottom, and the lower openings of multiple feeding channels are blocked. As the movable column 6 continues to move to the right, the feeding cylinder 2 continues to swing backward, the movable plate 10 flips, and the steel fibers in the through hole 9 are fed out. At this time, the lower openings of multiple feeding channels remain blocked, and the steel fibers in the feeding channels will not be fed out. This is to prevent the steel fibers fed out in the through hole 9 from being fed out through the feeding channel during the opening of the lower end of the through hole. If the feeding through hole 9 is fed out at this time, it will overlap with the steel fibers fed out when the feeding cylinder 2 swings forward, resulting in inconsistent feeding amounts at the front and rear of the mixer 1. Therefore, when the through hole 9 starts to feed out, the lower openings of multiple feeding channels are blocked to ensure that feeding can only begin when the feeding cylinder 2 swings from back to front until the last feeding channel is connected to the discharge hole 23. And as the feeding cylinder 2 continues to swing from back to front, the other feeding channels can feed out in sequence.The feeding cylinder 2 swings forward, and the process of feeding steel fibers inside the feeding cylinder 2 is as follows: When the movable column 6 starts to move to the left, the drive cylinder 13 first disengages from the right vertical plate 3, and the push rod 25 drives the feeding cylinder 2 to swing forward. As the push rod continues to move to the left, the discharge hole 23 first connects with the last feeding channel. The steel fibers in the last feeding channel enter the sleeve 26 through the discharge hole 23. The steel fibers in the sleeve 26 then enter the rotating drum 28. The steel fibers in the rotating drum 28 then fall vertically through the discharge cylinder 30 to the rear of the upper opening of the mixer 1. As the feeding cylinder 2 swings forward, the lower openings of multiple feeding channels from back to front connect with the discharge hole 23 in sequence. The steel fibers in the multiple feeding channels enter the sleeve 26 in sequence. When the foremost feeding channel connects with the discharge hole 23, the steel fibers in the rotating drum 28 fall vertically through the discharge cylinder 30. The material falls to the front of the upper opening of the mixer 1. During the forward swing of the feeding cylinder 2, the lower opening of the feeding channel on the front side of the discharge hole 23 remains blocked by the periphery of the feeding cylinder 2. The steel fibers in the blocked feeding channel remain in the feeding channel and will not enter the sleeve 26 prematurely through the discharge hole 23. When the push rod 25 moves to the left with the movable column 6 to the left end of the inclined hole 24, the rear end of the discharge hole 23 is flush with the front side of the frontmost partition plate 32. This application can ensure that the feeding range of the discharge cylinder 30 covers the upper opening of the mixer 1, thereby allowing the steel fibers to be evenly distributed in the mixer 1. Due to the swing of the feeding cylinder 2, the steel fibers discharged through the discharge hole 23 have a forward or backward speed. However, since the discharge direction of the discharge cylinder 30 is kept downward, the discharge direction of the steel fibers can be corrected, preventing the steel fibers from being thrown out of the mixer 1 and improving the utilization rate of the steel fibers.

[0031] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Any equivalent or similar modifications or substitutions to the technical solutions of the invention without departing from the spirit of the invention or the scope of disclosure shall fall within the protection scope of the present invention.

Claims

1. A fiber dispersion device for concrete processing, comprising a mixer (1), characterized in that, It also includes a feeding component and a feeding cylinder (2). The top left and right ends of the mixer (1) are fixed with vertical plates (3). The feeding component includes a shell (5) and a movable column (6). The opening end of the shell (5) passes through the left vertical plate (3) and is fixed to the left vertical plate (3). The top of the shell (5) is connected to a hopper (8). One end of the movable column (6) extends into the shell (5) and the other end extends out of the shell (5). A through hole (9) is opened on the movable column (6). A movable plate (10) is rotatably installed in the through hole (9). The movable plate (10) is used to block and open the lower opening of the through hole (9). A rotating rod (7) is fixed to the right end of the movable plate (10). A drive cylinder (13) that moves left and right is elastically connected to the movable column (6) on the right side of the through hole (9). The right end of the rotating rod (7) extends into the drive cylinder (13). A groove (11) is provided on the peripheral wall of the rotating rod (7). A drive column (14) with its end extending into the groove (11) is provided on the drive cylinder (13). A cloth cylinder (2) is rotatably connected between the two upright plates (3). The cloth cylinder (2) is sleeved on the movable column (6) and has an open bottom. A drive component is provided on the two upright plates (3). The drive component is used to drive the movable column (6) to move left and right and the cloth cylinder (2) to swing back and forth.

2. The fiber dispersion device for concrete processing according to claim 1, characterized in that, The closed end of the housing (5) is fixedly connected to the column (15), and the hopper (8) is fixedly connected to the left side plate (3); the side of the movable column (6) and the inner side of the housing (5) are in sliding contact.

3. The fiber dispersion device for concrete processing according to claim 1, characterized in that, The left and right sides of the movable plate (10) slide to contact the left and right sides of the through hole (9) respectively. The left end of the movable plate (10) is provided with a rotating shaft (16) that is rotatably connected to the movable column (6). The rotating shaft (16) and the rotating rod (7) are coaxial. The front and rear sides of the movable plate (10) are arc-shaped surfaces with protrusions facing away from each other. When the movable plate (10) is in a horizontal state, the opposing ends of the two arc-shaped surfaces contact the front and rear sides of the through hole (9) respectively.

4. The fiber dispersion device for concrete processing according to claim 1, characterized in that, The right end of the movable column (6) has a sliding hole (12), the left end of the drive cylinder (13) slides into the sliding hole (12), the left end of the drive cylinder (13) is connected to the left side of the sliding hole (12) via a spring (17), and the left end of the rotating rod (7) passes through the sliding hole (12) and is fixedly connected to the movable plate (10).

5. A fiber dispersion device for concrete processing according to claim 1, characterized in that, The driving component includes a connecting block (18), a motor (19), and a lead screw body (20). The connecting block (18) is fixedly mounted on the top of the movable column (6) and located above the rotating rod (7). The two ends of the lead screw body (20) are rotatably connected to two vertical plates (3), and the lead screw body (20) is provided with a movable nut (21). The connecting block (18) is fixedly sleeved on the movable nut (21). The rotation of the lead screw body (20) drives the movable nut (21) to move back and forth along its axis.

6. A fiber dispersion device for concrete processing according to claim 5, characterized in that, Each of the two upright plates (3) has a bearing ring (22) fixed on its opposite surface. Each bearing ring (22) is located on the outer periphery of the movable column (6) and the lead screw body (20). The two ends of the cloth cylinder (2) are circumferentially slidably sleeved on the two bearing rings (22). The lower end of the peripheral wall of the cloth cylinder (2) is provided with a discharge hole (23). The upper end of the peripheral wall of the cloth cylinder (2) is provided with an inclined hole (24) with the left end tilted forward. The top of the connecting block (18) is rotatably connected with a top rod (25). The free end of the top rod (25) passes through the inclined hole (24).

7. A fiber dispersion device for concrete processing according to claim 6, characterized in that, When the movable nut (21) moves to the left limit, the push rod (25) is located at the left end of the inclined hole (24), the through hole (9) is located inside the housing (5), the spring (17) is in a natural state, and the movable plate (10) is in a horizontal state; when the movable nut (21) moves to the right until the drive cylinder (13) contacts the right vertical plate (3), the left end of the through hole (9) is flush with the right side of the left vertical plate (3); when the movable nut (21) moves to the right limit, the push rod (25) is located at the right end of the inclined hole (24), the right end of the movable column (6) contacts the right vertical plate (3), and the drive cylinder (13) drives the movable plate (10) to rotate 90 degrees; after the movable nut (21) comes out of the housing from the through hole (9), the movable column (6) on the left side of the through hole (9) keeps the lower opening of the hopper (8) sealed.

8. A fiber dispersion device for concrete processing according to claim 7, characterized in that, The lower side of the fabric cylinder (2) is provided with a sleeve (26) that connects to the discharge hole (23). A rotating cylinder (28) is rotatably provided inside the sleeve (26). Both ends of the sleeve (26) and the rotating cylinder are closed, and the upper and lower ends are open. The outer wall of the rotating cylinder (28) slides in contact with the inner wall of the sleeve (26). The lower end opening of the rotating cylinder (28) connects to the discharge cylinder (30). The lower end of the discharge cylinder (30) extends out of the sleeve (26). The lower ends of the outer wall of the discharge cylinder (30) are connected to counterweight rods (31). The width of the lower end opening of the sleeve (26) is greater than the distance between the front and rear side plates of the discharge cylinder (30). When the fabric cylinder swings back and forth, the upper end opening of the rotating cylinder is always located inside the sleeve, and the lower end opening is always facing downward.

9. A fiber dispersion device for concrete processing according to claim 8, characterized in that, The lower part of the fabric cylinder (2) is provided with partitions (32) at intervals. The left and right ends of each partition (32) are fixedly connected to the upright plates (3) on both sides. The inner wall of the fabric cylinder (2) slides in contact with the outer end of each partition. The inner end of each partition (32) faces the center of the fabric cylinder (2). Two adjacent partitions and the upright plates on both sides together form a feeding channel. When the through hole (9) is located inside the fabric cylinder (2), the upper openings of multiple feeding channels are located directly below the through hole (9).

10. A fiber dispersion device for concrete processing according to claim 9, characterized in that, The width of the upper arc-shaped opening of the discharge hole (23) is twice the width of the lower arc-shaped opening of the feeding channel. When the drive cylinder (13) moves to the right until its end contacts the right side plate (3), the front end of the discharge hole (23) is flush with the rear side of the partition plate (32) on the last side. The lower openings of multiple feeding channels are blocked. The lower opening of the discharge cylinder (30) is located above the rear part of the upper opening of the mixer (1).

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