A pouring device for concrete pipe pile production

Abstract

The present invention relates to the technical field of concrete pipe pile pouring equipment, and discloses a pouring device for concrete pipe pile production, including a bracket, a flat car, a bottom mold fixedly provided at the top of the flat car, an adapted steel cage provided inside the bottom mold, a material distribution hopper fixedly provided at the top of the bracket for filling concrete into the steel cage, and a movable frame movably provided inside the bracket. The present invention drives the steel cage to vibrate during the reciprocating movement of the steel cage through the cooperation of a No. 1 spring, a No. 2 spring, a material baffle plate and a plastering arc plate, thereby preventing concrete from accumulating on the top of the steel cage densification area, ensuring the density of concrete filled in various places of the steel cage, and the plastering arc plate pushes and spreads the concrete in the steel cage during the reciprocating expansion and contraction and relative movement of the steel cage, without the need for manual tamping and plastering, thereby improving the reliability and convenience of the pouring device.

Description

Technical Field

[0001] The invention relates to the technical field of concrete pipe pile pouring equipment, in particular to a pouring device for concrete pipe pile production. Background Art

[0002] In the production process of prestressed concrete pipe piles, it is necessary to use concrete pipe pile pouring equipment to pour concrete into the bottom mold of the pipe pile in an open-mode material distribution method. Existing concrete pipe pile pouring equipment usually includes a distribution hopper and a flat car. The distribution hopper is filled with mixed concrete materials. The flat car drives the bottom mold to pass under the distribution hopper and move back and forth. An adaptive steel cage is arranged in the bottom mold. The cage body of the steel cage is provided with skirt plates and end plates at both ends. The material is discharged by opening and closing the arc door at the opening below the distribution hopper. The vibration motor arranged on the side of the distribution hopper and the material blocking plate under the distribution hopper are used to block the material. The material blocking plate is installed on a movable frame. The height and horizontal movement are adjusted by a winch and a threaded rod, so that the material blocking plate fits with the steel cage, ensuring that the concrete material is smashed into the steel cage from a high place, thereby pouring the concrete material into the bottom mold. After the concrete material is poured, the cover mold is closed, and after the tensioning centrifugal and maintenance process, the production of concrete pipe piles is completed.

[0003] However, during the use of traditional concrete pipe pile pouring equipment, the concrete material in the distribution hopper is easy to coagulate into a mass. After the concrete material collapses from the distribution hopper, it is easy to accumulate on the cage reinforcement. Especially when the flat car is distributing materials back and forth in the densified areas at both ends of the steel cage, the gap in the densified areas of the steel cage is small, and the accumulated concrete material is likely to collapse onto the skirt board, or the accumulated concrete material collapses to the edge of the bottom mold after the baffle plate is removed, which requires manual tamping and smearing. Not only does it affect the efficiency, uniformity and effective mold closing of the concrete pouring, but also when the existing skirt board will block the end of the steel cage and the concrete needs to rely on its own gravity to slide to the end for filling, it is more likely to cause insufficient distribution at the end of the steel cage, resulting in insufficient strength at the end of the formed pipe pile.

[0004] In addition, due to the instability of the concrete material itself, for example, if the moisture content of sand and gravel is not adjusted in time on rainy days, the concrete material may be too thin, making it easier to scatter during pouring, or because the concrete material itself inevitably loses slump over time, the concrete material after leaving the mixer stays for too long before entering the mold, resulting in increased slump loss and poor rheology, which may easily affect the pouring of the concrete material. In addition, part of the concrete material will adhere to the baffle plate during pouring, which will result in part of the concrete material being wasted. The baffle plate usually needs to be cleaned before each use, and even a grinder may be needed to grind and remove the hardened slurry on its surface, increasing the pouring cost of the concrete pipe piles. Summary of the invention

[0005] In view of the shortcomings of the existing concrete pipe pile pouring equipment mentioned in the background technology during use, the present invention provides a pouring device for concrete pipe pile production, which has the advantages of improving the concrete pouring efficiency and avoiding concrete collapse, and solves the technical problems raised in the above background technology.

[0006] The present invention provides the following technical solution: a pouring device for producing concrete pipe piles, comprising a bracket and a flat car, a bottom mold is fixedly provided at the top of the flat car, a matching steel cage is provided inside the bottom mold, a distribution hopper for filling concrete into the steel cage is fixedly provided at the top of the bracket, a movable frame is movably provided on the inner side of the bracket, a material blocking seat matching the steel cage is provided near the middle of the movable frame, one side of the material blocking seat is provided as an inclined surface close to the top, and a material blocking plate for blocking material is provided on one side of the inclined surface of the material blocking seat.

[0007] A movable groove is provided at the bottom end of the material blocking seat, and an adaptive material spreading arc plate is slidably arranged in the movable groove. A spring No. 1 is fixedly connected to one side of the material spreading arc plate to drive the material spreading arc plate to extend out of the movable groove. Both sides of the material spreading arc plate are arranged to have abutment slopes adapted to the round steel bars in the steel cage.

[0008] Preferably, the width of the plaster arc plate is smaller than the minimum spacing between two round steel bars in the steel cage, the maximum distance that the plaster arc plate can extend out of the movable groove is smaller than the diameter of the round steel bars in the steel cage, and the inner wall of the plaster arc plate is set to an arc surface that matches the arc-shaped side of the steel cage.

[0009] Preferably, two parallel guide rods are fixedly connected in the movable groove, and two guide holes adapted to the guide rods are opened on one side of the smear arc plate.

[0010] Preferably, the number of the movable grooves is set to be several, and the widths of the smear arc plates corresponding to different movable grooves are not equal.

[0011] Preferably, one end of the several plastering arc plates located on both sides is fixedly connected with a matching arc plate, the inner side of the arc plate is set as an arc surface matching the arc side of the steel cage, and one side of the material blocking seat is provided with a avoidance groove matching the corresponding arc plate.

[0012] Preferably, an inclined groove is provided on one side of the material blocking seat near the top, the material blocking plate is slidably arranged in the inclined groove, and a No. 2 spring for providing a reset force is fixedly connected to the top of the material blocking plate.

[0013] Preferably, the sliding surfaces of the inclined groove and the material baffle plate are inclined surfaces, and the bottom end of the inclined groove is connected to the movable groove.

[0014] Preferably, the number of the material baffle plates is set to be several and the number of the material baffle plates corresponds to the number of the wiping arc plates.

[0015] The present invention has the following beneficial effects:

[0016] 1. The present invention pushes the plastering arc plate to extend through a No. 1 spring, and the round steel bars of the steel cage cooperate with the abutting arc surface of the side of the plastering arc plate to push the plastering arc plate to contract during movement, thereby causing the plastering arc plate to reciprocate and extend and drive the steel cage to vibrate. On the one hand, the concrete accumulated on the top of the steel cage is vibrated and loosely collapsed into the steel cage, accelerating the collapse of the concrete to fill the end of the steel cage, ensuring that the concrete in each part of the steel cage is densely filled. On the other hand, the plastering arc plate and the arc plate push and press the concrete in the process of relative movement of the steel cage, further avoiding the possible collapse of the concrete, improving the reliability of the use of the pouring device, and ensuring the molding quality of the concrete pile.

[0017] 2. The present invention forms vibration through the cooperation of the steel cage, the No. 1 spring and the plastering arc plate. When the winch or threaded rod that drives the material blocking seat to lift or move horizontally is working, the plastering arc plate is separated from the steel cage or the flat car stops moving. Under the condition that the vibration of the material blocking seat itself is prevented from affecting the operation of the driving structure, the filling of concrete into the steel cage is accelerated by vibration, thereby improving the efficiency of the pouring device in filling concrete.

[0018] 3. The present invention cooperates with the No. 2 spring, the material baffle plate and the reciprocating telescopic plastering arc plate. Since different plastering arc plates have different widths, that is, when the round steel bars in the steel cage have the same spacing, the telescopic states of the plastering arc plates are different, and then the steel cage is driven to vibrate in turn when moving relative to the steel cage, thereby increasing the frequency of vibration and further enhancing the effect of vibrating the steel cage. At the same time, the plastering arc plates slide at different distances synchronously with the corresponding plastering arc plates, and the No. 2 spring is reset to form an inclined reciprocating vibration, which is convenient for shaking off the concrete adhered to the outer inclined surface, and the adjacent material baffle plates form a relative movement to stagger the adhered concrete, further improving the effect of shaking off the concrete, avoiding the waste of concrete, and facilitating the subsequent cleaning of the material baffle plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 For the present invention Figure 1 Schematic diagram of some structures in ;

[0021] Figure 3 For the present invention Figure 2 Schematic diagram of some structures in ;

[0022] Figure 4 For the present invention Figure 3A magnified view of the structure at A;

[0023] Figure 5 It is a schematic cross-sectional view of the structure of the material blocking seat of the present invention;

[0024] Figure 6 It is a three-dimensional cross-sectional schematic diagram of the structure of the material blocking seat of the present invention;

[0025] Figure 7 This is a schematic diagram of the structure of the material blocking seat of the present invention;

[0026] Figure 8 It is a schematic diagram of the structure of the arc plate of the present invention.

[0027] In the figure: 1. Flat car; 2. Bottom mold; 3. Steel cage; 4. Bracket; 5. Material feeding hopper; 6. Movable frame; 7. Material blocking seat; 8. Material blocking plate; 9. Inclined groove; 10. Material spreading arc plate; 11. Arc plate; 12. Abutting inclined surface; 13. Guide hole; 14. Movable groove; 15. Guide rod; 16. No. 1 spring; 17. No. 2 spring; 18. Avoidance groove. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] In the drawings provided in the specification, due to the relatively large proportions of the construction features, for example, the proportion between the screed arc plate and the steel cage in the present invention is too large, it may be difficult to intuitively understand the specific structure or working principle of the present invention when reading the drawings. In order to more clearly show the details and features of the present invention, the proportions of some construction features and their accessories in the drawings of the specification of the present invention have been adjusted to facilitate an intuitive understanding of the specific structure of the present invention.

[0030] See also Figure 1-Figure 3A pouring device for concrete pipe pile production comprises a bracket 4 and a flat car 1. A bottom mold 2 is fixedly arranged on the top of the flat car 1. An adapted steel cage 3 is arranged inside the bottom mold 2. End plates are fixedly arranged at both ends of the steel cage 3. Skirt plates are fixedly sleeved at both ends of the side surfaces of the cage body of the steel cage 3. A distribution hopper 5 for filling concrete into the steel cage 3 is fixedly arranged on the top of the bracket 4. An arc gate is rotatably connected to the bottom end of the distribution hopper 5. Both sides of the distribution hopper 5 are fixedly connected with an electric telescopic rod for controlling the opening and closing of the arc gate. The output end of the electric telescopic rod is fixedly connected to the arc gate. The flat car 1 can drive the bottom mold 2 to move back and forth at the lower end of the distribution hopper 5. The opening of the arc gate is controlled by the extension and retraction of the electric telescopic rod. A vibration motor is fixedly arranged on the side of the distribution hopper 5. When the arc gate is opened, the concrete after mixing in the distribution hopper 5 falls due to the vibration of the vibration motor and its own gravity, so that the concrete is smashed into the steel cage 3 in the bottom mold 2.

[0031] A movable frame 6 is movably arranged on the inner side of the bracket 4, and a material blocking seat 7 adapted to the steel cage 3 is slidably connected near the middle of the movable frame 6. The material blocking seat 7 is located between the bottom mold 2 and the material distribution hopper 5. A winch (not shown in the figure) is fixedly installed on the bracket 4 to drive the movable frame 6 to rise and fall. The winch is connected to the movable frame 6 through a chain. The height of the movable frame 6 is adjusted by the winch so that the height of the material blocking seat 7 is adapted to the side of the steel cage 3. The number of the material blocking seats 7 is set to two and the two material blocking seats 7 are symmetrically arranged about the central axis of the bottom mold 2. The material blocking seat 7 (see Figure 1 ) The threaded sleeves on the front and back sides are provided with threaded rods for adjusting the distance between the material blocking seat 7 and the steel cage 3. The threaded rods are rotatably connected to the movable frame 6. The threaded rods can be driven by a motor and a gear set or manually rotated by a handle to adjust the height of the material blocking seat 7 and the distance from the steel cage 3.

[0032] See also Figure 1-Figure 8 One side of the material blocking seat 7 is set as an inclined surface near the top, and a material blocking plate 8 for blocking material is set on one side of the material blocking seat 7 located on the inclined surface. When the concrete dropped in the distribution hopper 5 falls and deviates, the concrete falls to the side of the inclined material blocking plate 8, so that the concrete slides into the steel cage 3 along the material blocking side of the material blocking plate 8, avoiding the concrete from collapsing to the edge of the bottom mold 2 and affecting the subsequent mold closing. A movable groove 14 is opened at the bottom end of the interior of the material blocking seat 7, and an adaptive smearing arc plate 10 is slidably set in the movable groove 14, and a part of the smearing arc plate 10 is located on the outside of the movable groove 14.

[0033] The arc plate 10 can slide relative to the material stopper 7 but cannot fall off the movable groove 14. A spring 16 for driving the arc plate 10 to extend out of the movable groove 14 is fixedly connected to one side of the arc plate 10. Figure 4) width is less than the minimum spacing between two round steel bars in the steel cage 3, and the maximum distance that the plastering arc plate 10 can extend out of the movable groove 14 is less than the diameter of the round steel bars in the steel cage 3, that is, when the steel cage 3 follows the bottom mold 2 to move to the interval between the round steel bars corresponding to the plastering arc plate 10, the plastering arc plate 10 can be pushed by the first spring 16 to extend between the round steel bars of the steel cage 3, so that the plastering arc plate 10 can adapt to the steel bar density in the dense area and non-densified area of ​​the steel cage 3. Figure 8 ) are arranged on both sides with abutment slopes 12 adapted to the round steel bars in the steel cage 3.

[0034] The round steel bar is moved by the movement of the steel cage 3 to make the round steel bar abut against the abutting inclined surface 12, and continues to move to push the plaster arc plate 10 to shrink into the movable groove 14. In the process of the flat car 1 driving the bottom mold 2 to move, the plaster arc plate 10 cyclically performs two actions of being pushed out by the No. 1 spring 16 and being pushed to shrink by the steel cage 3. In this process, the collision between the plaster arc plate 10 and the steel cage 3 will drive the steel cage 3 to vibrate, and the concrete agglomerates accumulated on the top of the steel cage 3 will be loosened and broken by the vibration, so that the accumulated concrete will collapse and fill into the steel cage 3, avoiding the accumulated concrete from collapsing onto the skirt board or collapsing onto the edge of the bottom mold 2 after the material blocking seat 7 is removed. When the flat car 1 is distributing materials back and forth in the dense areas at both ends of the steel cage 3, the concrete will collapse through vibration, ensuring that the concrete in the dense area of ​​the steel cage 3 is densely filled, and accelerating the collapse of concrete to fill into the part of the end of the steel cage 3 blocked by the skirt board, thereby ensuring the forming strength of the end of the formed pipe pile.

[0035] The inner wall of the plastering arc plate 10 is set to an arc surface that is adapted to the arc side surface of the steel cage 3. During the reciprocating extension and contraction process of the plastering arc plate 10, the arc surface of the plastering arc plate 10 can fit and push the concrete filled in the steel cage 3, and the arc surface cooperates with the abutment inclined surface 12 to spread the concrete, further avoiding the accumulated concrete from collapsing to the edge of the bottom mold 2 after the material blocking seat 7 is removed. There is no need for manual tamping and spreading, saving labor costs. In addition, since the plastering arc plate 10 cooperates with the No. 1 spring 16, the material blocking seat 7 and the steel cage 3 to produce vibration, when the flat car 1 stops moving or the material blocking seat 7 is removed to make the plastering arc plate detach from the steel cage 3, no vibration will be generated, avoiding the adverse effects of vibration on the winch of the movable frame 6 and the operation of the threaded rod for adjusting the horizontal position of the movable frame 6.

[0036] See also Figure 1-Figure 6 and Figure 8Two parallel guide rods 15 are fixedly connected in the movable groove 14, and two guide holes 13 adapted to the guide rods 15 are opened on one side of the smear arc plate 10. The guide rods 15 cooperate with the corresponding guide holes 13 to guide the reciprocating extension and contraction of the smear arc plate 10. The cross-sectional shape of the movable groove 14 can be fan-shaped but not limited to fan-shaped. The number of movable grooves 14 is set to be several, and different movable grooves 14 correspond to the smear arc plates 10 (see Figure 8 ) are not equal, so that the material blocking seat 7 is at a position where the spacing of the round steel bars in the steel cage 3 is equal, for example, when the material blocking seat 7 is located in the non-densified area in the middle of the steel cage 3, the expansion and contraction distances of the plastering arc plates 10 at different positions are inconsistent under the action of the steel cage 3 or the No. 1 spring 16, that is, the vibration moments of the plastering arc plates 10 and the steel cage 3 at different positions are different, thereby increasing the vibration frequency of the steel cage 3 and further improving the vibration effect on the steel cage 3.

[0037] See also Figure 1-Figure 5 , Figure 7 and Figure 8 , a plurality of smear arc plates 10 are located in (refer to Figure 8 ) One end of the screed arc plate 10 on both sides is fixedly connected with a matching arc plate 11, the inner side of the arc plate 11 is set as a curved surface matched with the curved side surface of the steel cage 3, and one side of the material blocking seat 7 is provided with a avoidance groove 18 matched with the corresponding arc plate 11. The screed arc plate 10 can synchronously drive the arc plate 11 to move, so that the arc plate 11 can push and spread the concrete at the curved surface of the top of the steel cage 3 without affecting the concrete being smashed into the steel cage 3, thereby expanding the functional range of the screed arc plate 10 and further improving the effect of pushing and spreading the concrete.

[0038] See also Figure 1-Figure 8 The top of the baffle plate 8 is fixedly connected with a No. 2 spring 17 for providing a reset elastic force, and the bottom end of the inclined groove 9 is connected with the movable groove 14, so that the baffle plate 8 is pushed by the No. 2 spring 17, and the bottom end of the baffle plate 8 abuts against the plastering arc plate 10, and then the plastering arc plate 10 reciprocates and drives the baffle plate 8 to slide reciprocatingly with the No. 2 spring 17, so that the baffle plate 8 vibrates, and then the concrete adhered to the outer inclined surface of the baffle plate 8 is vibrated off, and the sliding surface of the inclined groove 9 and the baffle plate 8 is an inclined surface, so that the baffle plate 8 moves in the horizontal and vertical directions at the same time, and the vibration effect is ensured while ensuring that the baffle plate 8 can guide the concrete to fall.

[0039] The number of baffle plates 8 is set to be several and the number of baffle plates 8 corresponds to the number of plaster arc plates 10. Different plaster arc plates 10 drive the corresponding baffle plates 8 to slide and shrink at different distances, so that adjacent baffle plates 8 are staggered, and then the concrete adhering to the two adjacent baffle plates 8 is staggered and dispersed, and the vibration of the baffle plates 8 is combined to further improve the effect of shaking off the concrete, thereby avoiding the concrete from adhering to the baffle plates 8, which is convenient for the subsequent cleaning of the baffle plates 8. The No. 1 spring 16 and the No. 2 spring 17 cooperate to ensure the uniformity of the elastic force of the plaster arc plate 10.

[0040] The method of use (working principle) of the present invention is as follows:

[0041] The flat car 1 drives the bottom mold 2 to move back and forth at the lower end of the distribution hopper 5, and the concrete in the distribution hopper 5 is discharged through the arc gate. Part of the concrete is directly smashed into the steel cage 3, and part of the concrete falls on the baffle plate 8. Due to the movement of the steel cage 3 relative to the baffle seat 7, the smearing arc plate 10 cooperates with the No. 1 spring 16 and the steel cage 3 to reciprocate and drive the steel cage 3 to vibrate, which is convenient for concrete to be filled into the steel cage 3. At the same time, the smearing arc plate 10 pushes and presses the concrete to close the slurry. The smearing arc plate 10 is extended and retracted in cooperation with the No. 2 spring 17 to drive the baffle plate 8 to extend and retract, and different smearing arc plates 10 vibrate at different times, thereby increasing the vibration frequency of the steel cage 3, and different baffle plates 8 have different sliding distances. On the one hand, it ensures that the concrete in the densification area of ​​the steel cage 3 is filled densely, and on the other hand, it avoids concrete adhering to the baffle plate 8 to cause concrete waste, thereby improving the reliability and flexibility of the use of the pouring device.

Claims

1. A pouring device for concrete pipe pile production, comprising a support (4) and a flat car (1), wherein a bottom mold (2) is fixedly provided at the top of the flat car (1), an adapted steel cage (3) is provided inside the bottom mold (2), a distribution hopper (5) for filling concrete into the steel cage (3) is fixedly provided at the top of the support (4), and a movable frame (6) is movably provided inside the support (4), characterized in that: A material blocking seat (7) adapted to the steel cage (3) is arranged near the middle of the movable frame (6); one side of the material blocking seat (7) is arranged near the top as an inclined surface; and a material blocking plate (8) for blocking material is arranged on one side of the inclined surface of the material blocking seat (7); A movable groove (14) is provided at the bottom end of the inner part of the material blocking seat (7), and an adapted plaster arc plate (10) is slidably arranged in the movable groove (14), and a spring (16) for driving the plaster arc plate (10) to extend out of the movable groove (14) is fixedly connected to one side of the plaster arc plate (10), and both sides of the plaster arc plate (10) are arranged as abutment inclined surfaces (12) adapted to the round steel bars in the steel cage (3); The width of the plaster arc plate (10) is smaller than the minimum spacing between two round steel bars in the steel cage (3); the maximum distance that the plaster arc plate (10) can extend out of the movable groove (14) is smaller than the diameter of the round steel bars in the steel cage (3); and the inner wall of the plaster arc plate (10) is configured as a curved surface that matches the curved side surface of the steel cage (3).

2. A pouring device for concrete pipe pile production according to claim 1, characterized in that: Two parallel guide rods (15) are fixedly connected in the movable groove (14), and two guide holes (13) adapted to the guide rods (15) are formed on one side of the smear arc plate (10).

3. A pouring device for concrete pipe pile production according to claim 1, characterized in that: The number of the movable grooves (14) is set to be a plurality, and the widths of the smear arc plates (10) corresponding to different movable grooves (14) are not equal.

4. A pouring device for concrete pipe pile production according to claim 3, characterized in that: One end of the plurality of the smearing arc plates (10) located on both sides is fixedly connected to a matching arc plate (11), the inner side of the arc plate (11) is arranged as an arc surface matching the arc side surface of the steel cage (3), and one side of the material blocking seat (7) is provided with an avoidance groove (18) matching the corresponding arc plate (11).

5. A pouring device for concrete pipe pile production according to any one of claims 1 or 3, characterized in that: A slanted groove (9) is provided on one side of the material blocking seat (7) near the top, and the material blocking plate (8) is slidably arranged in the slanted groove (9). A No. 2 spring (17) for providing a restoring elastic force is fixedly connected to the top of the material blocking plate (8).

6. A pouring device for concrete pipe pile production according to claim 5, characterized in that: The sliding surfaces of the inclined groove (9) and the material blocking plate (8) are inclined surfaces, and the bottom end of the inclined groove (9) is connected to the movable groove (14).

7. A pouring device for concrete pipe pile production according to claim 5, characterized in that: The number of the material baffle plates (8) is set to be a plurality, and the number of the material baffle plates (8) corresponds to the number of the smear arc plates (10).

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