End plate disassembly and assembly machine for disassembling and assembling pipe pile molds

Abstract

This invention relates to the field of pipe pile mold assembly and disassembly technology, and discloses an end plate assembly and disassembly machine for pipe pile mold assembly and disassembly. A clamping and fixing assembly for clamping and fixing the pipe pile mold cylinder is installed on the base. Under the weight of the pipe pile mold cylinder itself, the clamping and fixing assembly clamps and fixes the pipe pile mold cylinder, and also drives the pipe pile mold cylinder to rotate. The openable and closable end cap assembly, after closing, achieves a sleeved seal at the front end of the pipe pile mold cylinder. When the rear end of the core rod assembly extends through the rotatable end cap assembly and is locked with a nut, the rotatable end cap assembly sleeves and seals the rear end of the pipe pile mold cylinder. This invention adopts a "gravity-triggered automatic clamping" mechanism, utilizing the weight of the pipe pile mold cylinder to drive a hydraulic linkage assembly, achieving automatic symmetrical clamping of the top clamping parts without manual intervention, shortening clamping time and improving efficiency. After both ends of the pipe pile mold cylinder are sealed, it can still rotate, ensuring uniform concrete density during centrifugal pouring.

Description

Technical Field

[0001] This invention relates to the field of pipe pile mold assembly and disassembly technology, specifically to an end plate assembly and disassembly machine for pipe pile mold assembly and disassembly. Background Technology

[0002] In the production of pipe piles, the assembly and disassembly of the pipe pile molds (especially the sealing and removal of the end plates) are critical steps affecting production efficiency and product quality. Currently, traditional pipe pile molds suffer from the following technical defects:

[0003] The clamping and fixing process is inefficient and lacks stability.

[0004] Traditional pipe pile molds are often clamped by manual bolt tightening or a single cylinder drive, which takes a long time (3-5 minutes to clamp a single mold), making it difficult to meet the needs of large-scale production.

[0005] Insufficient positioning accuracy of the reinforcing bar cage:

[0006] The steel reinforcement cage needs to be manually handled and placed into the mold cylinder. Due to misalignment, the cage may tilt or collide with the inner wall of the mold, affecting the strength of the pipe pile structure. Although some equipment uses a core rod for auxiliary positioning, the coaxiality error between the core rod and the mold cylinder is large (often exceeding 1mm), which further aggravates the positioning deviation.

[0007] Poor coordination between end plate sealing and pipe pile mold rotation:

[0008] The end plates of pipe pile molds are mostly fixed structures, which cannot rotate synchronously with the mold, affecting the centrifugal effect during concrete pouring (such as uneven concrete density). To address this, we have introduced an end plate disassembly and assembly machine for pipe pile molds. Summary of the Invention

[0009] The purpose of this invention is to provide an end plate disassembly and assembly machine for disassembling and assembling pipe pile molds, so as to solve the problems mentioned in the background art.

[0010] To achieve the above objectives, the present invention provides the following technical solution:

[0011] An end plate disassembly and assembly machine for disassembling and assembling pipe pile molds includes a base, on which a clamping and fixing assembly for clamping and fixing the pipe pile mold cylinder is installed. Under the action of the pipe pile mold cylinder's own gravity, the clamping and fixing assembly achieves clamping and fixing of the pipe pile mold cylinder, and the clamping and fixing assembly is also used to drive the pipe pile mold cylinder to rotate.

[0012] The upper end of the base is also provided with a movable first movable seat, a second movable seat and a third movable seat. The first movable seat is used to place the steel reinforcement cage. The steel reinforcement cage is fitted on the outside of the core rod assembly on the second movable seat. The core rod assembly is used to drive the steel reinforcement cage to extend into the pipe pile mold cylinder together.

[0013] The first movable seat is also provided with an openable end cap assembly. When the openable end cap assembly is closed, it can achieve the sleeve sealing of the front end of the pipe pile mold cylinder. The third movable seat is provided with a rotatable end cap assembly. When the rotatable end cap assembly extends through the rear end of the core rod assembly and is locked with a nut, the rotatable end cap assembly can sleeve sealing the rear end of the pipe pile mold cylinder.

[0014] Preferably, the upper end of the base is provided with a front rail and a rear rail, respectively, and the clamping and fixing assembly is located between the front rail and the rear rail;

[0015] The second movable seat and the first movable seat are slidably connected on the front track, and the third movable seat is slidably connected on the rear track.

[0016] Preferably, the upper part of the first movable seat is provided with a U-shaped groove for placing the steel reinforcement cage;

[0017] The openable end cap assembly includes a front end cap that is movably connected to both sides of the rear end of the U-shaped groove by a pin. The rear end of the front end cap is provided with a semi-circular groove for fitting onto the outer side of the front end of the pipe pile mold cylinder, and the middle of the front end cap is provided with a semi-circular hole.

[0018] The front end cover is provided with connecting ears on the top. After the two sets of connecting ears are fixed with bolts, the two sets of front end covers are closed to achieve the sleeve sealing of the front end of the pipe pile mold cylinder.

[0019] Preferably, the core rod assembly includes a core rod shaft fixed to the rear end of the second movable seat and a stop plate fixed to the front of the core rod shaft.

[0020] Preferably, the rotatable end cap assembly includes a rotating seat with an opening through the third movable seat, a bearing sleeved on the outside of the rotating seat and embedded inside the opening, a limiting ring fixed after the rear end of the rotating seat extends out of the opening, and an internal threaded ring screwed to the outer side of the front part of the rotating seat.

[0021] The rear end of the pipe pile mold cylinder extends into the concave circular groove at the front end of the rotating seat, and a reserved hole for the core rod shaft to pass through is provided in the middle of the concave circular groove. The rear end of the core rod shaft extends out of the reserved hole and is locked and fixed with a nut.

[0022] Preferably, the clamping and fixing assembly includes a U-shaped fixing seat mounted on the base, a bottom support member slidingly connected in the cavity at the bottom of the U-shaped fixing seat, and a top clamping member symmetrically and movably connected to both sides of the upper part of the U-shaped fixing seat.

[0023] After the pipe pile mold cylinder is placed on the upper end of the bottom support, the bottom support will move downward, thereby triggering the linkage component on the U-shaped fixing seat, so that the linkage component drives the top clamping component to rotate and clamp it on the top wall of the pipe pile mold cylinder.

[0024] Preferably, the bottom support includes a lifting seat connected inside the cavity by a first return spring, two sets of support shafts movably connected at the upper end of the lifting seat by a bracket plate, a support cylinder fixed on the support shaft, a first pulley fixed in the middle of one set of support shafts, a servo motor fixed in the middle of the upper end of the lifting seat, a second pulley fixed at the output end of the servo motor, and a belt connecting the first pulley and the second pulley.

[0025] The upper two sides of the U-shaped fixing base are symmetrically fixed with U-shaped bases;

[0026] The top clamping component includes a rotating cylinder movably connected to the inside of a U-shaped seat by a pin, a clamping cylinder movably connected to the inner side of the rotating cylinder by a U-shaped frame, and a rotating arm connected to the outer side of the rotating cylinder. The rotating arm is provided with a connecting groove.

[0027] Preferably, the cavity sidewall at the bottom of the U-shaped fixing seat is provided with a vertical sliding block, and the side of the lifting seat is provided with a sliding groove for sliding the vertical sliding block.

[0028] Preferably, the linkage assembly includes a first piston connected to the lower middle part of the lifting seat by a first piston rod, a main cylinder fixed in the middle of the cavity, a secondary cylinder connected to both sides of the bottom of the main cylinder by connecting pipes, a second piston disposed inside the secondary cylinder, an internally threaded cylinder connected to the second piston rod at the top of the second piston, a U-shaped connector fixed at the top of the internally threaded cylinder, and a connecting pin fixed in the middle of the U-shaped connector.

[0029] The first piston is disposed in the main cylinder body, and the top of the first piston rod extends through the top of the main cylinder body;

[0030] The auxiliary cylinder is fixed to the bottom of the U-shaped seat. The top of the second piston rod passes through the auxiliary cylinder and the U-shaped seat and is screwed to the internal threaded cylinder. A second return spring is provided inside the auxiliary cylinder and sleeved on the second piston rod. The second return spring is located between the top wall of the auxiliary cylinder and the top of the second piston.

[0031] The connecting pin passes through the corresponding connecting groove.

[0032] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention adopts a "gravity-triggered automatic clamping" mechanism, which uses the gravity of the pipe pile mold cylinder to drive the hydraulic linkage component to achieve automatic symmetrical clamping of the top clamping parts without manual intervention, shortening the clamping time and improving efficiency; the core rod assembly and the moving seat track guide cooperation ensure that the coaxiality error between the core rod shaft and the pipe pile mold cylinder is ≤0.5mm, avoiding collisions when the steel reinforcement skeleton is placed; the openable and closable front end cover is fixed with bolts through a semi-circular groove, forming a complete seal after closure and not rotating with the mold, which neither hinders the rotation of the mold nor prevents concrete leakage; the rotatable rear end cover is connected to the moving seat through a bearing, rotates synchronously with the mold, and is positioned with the concave circular groove to ensure uniform concrete density during centrifugal casting.

[0033] The first and second reset springs enable automatic reset of the clamping and fixing components, avoiding safety hazards caused by human error; the support cylinder contacts the mold and drives rotation, eliminating the need for an additional rotation mechanism.

[0034] In summary, this invention, through its integrated design of "automatic clamping - precise positioning - coordinated rotation - safe reset," comprehensively solves the problems of low efficiency, poor precision, and insufficient safety in the traditional pipe pile mold assembly and disassembly process, and significantly improves the automation level and product quality of pipe pile production. Attached Figure Description

[0035] Figure 1 This is a three-dimensional structural diagram of the entire assembly of the present invention;

[0036] Figure 2 For the present invention Figure 1 A schematic diagram of the three-dimensional structure from another perspective;

[0037] Figure 3 This is an exploded structural diagram of the overall assembly of the present invention;

[0038] Figure 4 This is a schematic diagram of the initial state structure of the clamping and fixing component of the present invention;

[0039] Figure 5 This is an exploded structural diagram of the clamping and fixing components of the present invention.

[0040] Figure 6 This is a schematic diagram of the bottom support component of the present invention;

[0041] Figure 7 This is a schematic diagram of the top clamping component of the present invention;

[0042] Figure 8 This is a schematic diagram of the connection between the top clamping member and the U-shaped connector of the present invention;

[0043] Figure 9 For the present invention Figure 4 A schematic diagram of the cross-sectional structure;

[0044] Figure 10 This is a cross-sectional structural diagram showing how the pipe pile mold cylinder of the present invention is clamped and fixed by a clamping and fixing component;

[0045] Figure 11 This is a schematic diagram of the structure of the pipe pile mold cylinder placed on the support cylinder according to the present invention;

[0046] Figure 12 For the present invention Figure 3 A schematic diagram of the three-dimensional structure from another perspective;

[0047] Figure 13This is a schematic diagram of the steel reinforcement frame of the present invention placed on the first movable seat;

[0048] Figure 14 This is a cross-sectional view of the rotatable end cap assembly of the present invention.

[0049] Figure 15 This is a schematic diagram of the structure after the steel reinforcement cage and the pipe pile mold cylinder of the present invention have been placed;

[0050] Figure 16 This is a schematic diagram of the structure of the present invention, showing the core rod shaft extending into the steel reinforcement cage;

[0051] Figure 17 This is a cross-sectional view of the assembled steel reinforcement cage, pipe pile mold cylinder, and core rod shaft of the present invention.

[0052] In the diagram: 1. Base; 2. U-shaped fixed seat; 3. First moving seat; 4. Second moving seat; 5. Front rail; 6. Rear rail; 7. Third moving seat; 8. Pipe pile mold cylinder; 10. Nut; 11. Reinforcing ring; 12. Lifting ring; 14. Front end cover; 141. Semi-circular hole; 142. Pin; 143. Semi-circular groove; 144. Connecting ear; 15. Core rod shaft; 16. Abutment plate; 17. Concave circular groove; 18. Reinforcing steel skeleton; 19. Sub-cylinder; 20. U-shaped seat; 22. Rotating cylinder; 23. Rotating arm; 24. U-shaped frame; 25. Clamping cylinder; 26. Support cylinder; 28. 29. Connecting pipe; 30. Lifting seat; 31. Pin; 32. Main cylinder body; 33. Vertical sliding block; 34. First return spring; 35. Sliding groove; 36. First piston rod; 37. First piston; 38. Support plate; 39. Servo motor; 40. Belt; 41. Second pulley; 42. Connecting pin; 43. Connecting groove; 44. U-shaped connector; 45. Internal threaded cylinder; 46. Second piston rod; 47. Second piston; 48. Second return spring; 49. First pulley; 50. Rotating seat; 51. Reserved hole; 52. Limiting ring; 53. Bearing; 54. Internal threaded ring. Detailed Implementation

[0053] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0054] Example:

[0055] Please see Figure 1-17 The present invention provides a technical solution:

[0056] An end plate disassembly and assembly machine for disassembling and assembling pipe pile molds includes a base 1, on which a clamping and fixing assembly for clamping and fixing the pipe pile mold cylinder 8 is installed.

[0057] The clamping and fixing assembly includes a U-shaped fixing seat 2 mounted on the base 1, a bottom support piece that slides in the cavity at the bottom of the U-shaped fixing seat 2, and a top clamping piece that is symmetrically and movably connected to both sides of the upper part of the U-shaped fixing seat 2.

[0058] After the pipe pile mold cylinder 8 is placed on the upper end of the bottom support, the bottom support will move downward, thereby triggering the linkage component on the U-shaped fixing seat 2, which will drive the top clamping component to rotate and clamp it on the top wall of the pipe pile mold cylinder 8.

[0059] The bottom support includes a lifting seat 29 connected inside the cavity by a first return spring 33, two sets of support shafts movably connected to the upper end of the lifting seat 29 by a bracket plate 37, a support cylinder 26 fixed on the support shafts, a first pulley 48 fixed in the middle of one set of support shafts, a servo motor 38 fixed in the middle of the upper end of the lifting seat 29, a second pulley 40 fixed at the output end of the servo motor 38, and a belt 39 connecting the first pulley 48 and the second pulley 40.

[0060] Several sets of reinforcing rings 11 are provided on the outer surface of the pipe pile mold cylinder 8. Two sets of support cylinders 26 are supported at the bottom of the pipe pile mold cylinder 8, and the two sets of support cylinders 26 are located between the two sets of reinforcing rings 11 in the middle (e.g., Figure 11 As shown), the top two ends of the pipe pile mold cylinder 8 are equipped with lifting rings 12;

[0061] U-shaped fixing base 2 has U-shaped fixing base 20 symmetrically fixed on both sides of the upper part;

[0062] The top clamping component includes a rotating cylinder 22 movably connected to the inside of the U-shaped seat 20 by a pin 30, a clamping cylinder 25 movably connected to the inner side of the rotating cylinder 22 by a U-shaped frame 24, and a rotating arm 23 connected to the outer side of the rotating cylinder 22. The rotating arm 23 is provided with a connecting groove 42.

[0063] The cavity sidewall at the bottom of the U-shaped fixing seat 2 is provided with a vertical sliding block 32, and the side of the lifting seat 29 is provided with a sliding groove 34 for sliding the vertical sliding block 32.

[0064] The linkage assembly includes a first piston 36 connected to the lower middle part of the lifting seat 29 by a first piston rod 35, a main cylinder 31 fixed in the middle of the cavity, a secondary cylinder 19 connected to the bottom sides of the main cylinder 31 by connecting pipes 28, a second piston 46 disposed inside the secondary cylinder 19, an internally threaded cylinder 44 connected to the second piston rod 45 at the top of the second piston 46, a U-shaped connector 43 fixed at the top of the internally threaded cylinder 44, and a connecting pin 41 fixed in the middle of the U-shaped connector 43;

[0065] The first piston 36 is disposed inside the main cylinder 31, and the top of the first piston rod 35 extends out through the top of the main cylinder 31;

[0066] The auxiliary cylinder 19 is fixed to the bottom of the U-shaped seat 20. The top of the second piston rod 45 passes through the auxiliary cylinder 19 and the U-shaped seat 20 and is screwed to the internal threaded cylinder 44. The auxiliary cylinder 19 is provided with a second return spring 47 sleeved on the second piston rod 45. The second return spring 47 is located between the top wall of the auxiliary cylinder 19 and the top of the second piston 46.

[0067] The connecting pin 41 passes through the corresponding connecting groove 42.

[0068] Gravity-triggered automatic clamping: The lifting seat 29 is driven to move down by the gravity of the pipe pile mold cylinder 8. The top clamping part is automatically clamped by the hydraulic linkage components (main cylinder 31 and auxiliary cylinder 19). No additional power control is required, which saves energy and has high clamping efficiency.

[0069] The buffering effect of hydraulic linkage: The hydraulic oil in the main cylinder 31 and the auxiliary cylinder 19 can buffer the impact force during clamping, avoiding damage to the mold cylinder or equipment caused by rigid contact.

[0070] The first reset spring 33 and the second reset spring 47 ensure that the clamping and fixing components automatically reset after the pipe pile mold cylinder 8 is removed, without the need for manual intervention, thus improving operational safety.

[0071] Symmetrical clamping structure: The clamping cylinders 25 on both sides move synchronously to ensure that the pipe pile mold cylinder 8 is subjected to uniform force and avoids deformation caused by clamping on one side. It is suitable for mold cylinders of different diameters (compatibility can be achieved by adjusting the clamping stroke).

[0072] Rotatable support design: The support cylinder 26 is driven to rotate by the servo motor 38, which meets the rotation requirements of the pipe pile mold cylinder 8. No additional rotation mechanism is required, which simplifies the equipment structure and reduces the failure rate.

[0073] Under the action of its own gravity, the clamping and fixing assembly clamps and fixes the pipe pile mold cylinder 8, and the clamping and fixing assembly is also used to drive the pipe pile mold cylinder 8 to rotate.

[0074] The upper end of the base 1 is also provided with a movable first movable seat 3, a second movable seat 4 and a third movable seat 7;

[0075] The upper end of the base 1 is provided with a front rail 5 and a rear rail 6 respectively, and the clamping and fixing assembly is located between the front rail 5 and the rear rail 6; the second movable seat 4 and the first movable seat 3 are slidably connected to the front rail 5, and the third movable seat 7 is slidably connected to the rear rail 6.

[0076] Independent movement along separate tracks: the first moving seat 3 and the second moving seat 4 slide along the front track 5, and the third moving seat 7 slides along the rear track 6. The movement of each component does not interfere with each other, which facilitates the step-by-step operation of placing the steel reinforcement frame 18, positioning the core rod shaft 15, and sealing the end cap, thereby improving space utilization.

[0077] Precise alignment: The track guide ensures the linear motion accuracy of the moving seat, making the coaxiality error between the core rod shaft 15 and the pipe pile mold cylinder 8 ≤ 0.5mm, avoiding collisions when the steel reinforcement cage 18 is placed in, and ensuring product quality.

[0078] The first movable seat 3 is used to place the steel reinforcement cage 18, and the upper part of the first movable seat 3 is provided with a U-shaped groove for placing the steel reinforcement cage 18.

[0079] The steel reinforcement frame 18 is fitted onto the outside of the core rod assembly on the second movable seat 4;

[0080] The core rod assembly includes a core rod shaft 15 fixed to the rear end of the second movable seat 4 and an abutment plate 16 fixed to the front of the core rod shaft 15.

[0081] The abutment plate 16 at the front end of the core rod shaft 15 restricts the axial displacement of the steel reinforcement cage 18, and the rear end is locked by the nut 10 to ensure that the steel reinforcement cage 18 does not shake during the pouring process, thereby improving the strength of the pipe pile structure.

[0082] The core shaft 15 runs through the entire pipe pile mold cylinder 8, serving both as a positioning mechanism for the reinforcing steel skeleton 18 and a locking function for the end cap, thereby reducing redundant components and lowering the weight of the equipment.

[0083] The core rod assembly is used to drive the steel reinforcement cage 18 to extend into the pipe pile mold cylinder 8 together;

[0084] The first movable seat 3 is also equipped with an openable and closable end cover assembly;

[0085] The openable end cap assembly includes a front end cap 14 that is movably connected to both sides of the rear end of the U-shaped groove by a pin 142. The rear end of the front end cap 14 is provided with a semi-circular groove 143 for fitting onto the outer side of the front end of the pipe pile mold cylinder 8, and the middle part of the front end cap 14 is provided with a semi-circular hole 141.

[0086] The top of the front cover 14 is provided with connecting ears 144. After the two sets of connecting ears 144 are fixed with bolts, the two sets of front covers 14 are closed to achieve the sleeve sealing of the front end of the pipe pile mold cylinder 8.

[0087] Openable front cover: Two sets of front covers 14 are movably connected by pins 142. When closed, they form a complete sealing structure, which can be adapted to pipe pile mold cylinders 8 of different lengths. The bolt connection facilitates quick disassembly and assembly, making it suitable for mass production scenarios.

[0088] The closable end cap assembly can be closed to achieve the sleeve sealing of the front end of the pipe pile mold cylinder 8.

[0089] The third movable seat 7 is equipped with a rotatable end cap assembly;

[0090] The rotatable end cap assembly includes a rotating seat 49 with an opening through the third movable seat 7, a bearing 52 embedded inside the opening and sleeved on the outside of the rotating seat 49, a limiting ring 51 fixed after the rear end of the rotating seat 49 extends out of the opening, and an internal threaded ring 53 screwed to the front outer side of the rotating seat 49.

[0091] The rear end of the pipe pile mold cylinder 8 extends into the concave circular groove 17 at the front end of the rotating seat 49, and the concave circular groove 17 is provided with a reserved hole 50 for penetrating the core rod shaft 15. After the rear end of the core rod shaft 15 extends out of the reserved hole 50, it is locked and fixed with the nut 10.

[0092] Rotatable rear end cover: The rotating seat 49 is connected to the third moving seat 7 through the bearing 52, allowing the rear end cover to rotate synchronously when the pipe pile mold cylinder 8 rotates, avoiding friction and wear between the end cover and the pipe pile mold cylinder 8, and extending the service life of the equipment.

[0093] When the rotatable end cap assembly extends through the rear end of the core rod assembly and is locked with nut 10, the rotatable end cap assembly is sleeved and sealed to the rear end of the pipe pile mold cylinder 8.

[0094] Specifically, when using it:

[0095] Clamping and fixing of pipe pile mold cylinder 8:

[0096] The crane uses a steel rope to connect with the lifting ring 12 and lifts the pipe pile mold cylinder 8. The pipe pile mold cylinder 8 is placed on the support cylinder 26 of the clamping and fixing assembly. Under its own weight, the lifting seat 29 compresses the first return spring 33 and moves downward, driving the first piston rod 35 to push the first piston 36 in the main cylinder 31 to move downward, so that the hydraulic oil in the main cylinder 31 flows into the two auxiliary cylinders 19 through the connecting pipe 28.

[0097] Hydraulic oil pushes the second piston 46 in the auxiliary cylinder 19 to move upward. The second piston rod 45 drives the internal threaded cylinder 44 and the U-shaped connector 43 to rise. The connecting pin 41 slides along the connecting groove 42 of the rotating arm 23, driving the rotating cylinder 22 to rotate around the pin rod 30, causing the inner clamping cylinder 25 to swing downward and clamp the top of the pipe pile mold cylinder 8, thus completing the automatic clamping.

[0098] Placement of the reinforcing steel cage 18 and positioning of the core rod assembly:

[0099] The reinforcing steel cage 18 is placed in the U-shaped groove of the first movable seat 3. The second movable seat 4 moves backward along the front rail 5, so that the reinforcing steel cage 18 is fitted onto the outside of the core rod shaft 15 of the second movable seat 4. The abutment plate 16 at the front end of the core rod shaft 15 abuts against the front end of the reinforcing steel cage 18 to achieve positioning (e.g., Figure 16 (as shown)

[0100] The second movable seat 4 continues to move backward along the front track 5, causing the second movable seat 4 to push the first movable seat 3 backward to the position shown. Figure 2 and 17 At the position shown, the core rod shaft 15 extends from the rear of the pipe pile mold cylinder 8, abuts against the steel reinforcement cage 18 with the abutment plate 16, and enters the pipe pile mold cylinder 8.

[0101] Sealing and locking of pipe pile mold cylinder 8:

[0102] Front-end sealing: Rotate the two sets of front-end covers 14 on the first moving seat 3 so that their semi-circular grooves 143 fit on the outside of the front end of the pipe pile mold cylinder 8 and are fixed by connecting ears 144 and bolts. After closing, the front-end cover 14 forms a complete circle, sealing the front end of the pipe pile mold cylinder 8. The core rod shaft 15 passes through the semi-circular hole 141 of the front-end cover 14.

[0103] When the pipe pile mold cylinder 8 rotates, the two sets of front end covers 14 do not rotate with it. However, after the two sets of front end covers 14 are closed, the front end covers 14 form a complete circle, which blocks the front end of the pipe pile mold cylinder 8. This can both prevent the rotation of the pipe pile mold cylinder 8 and block the front end of the pipe pile mold cylinder 8.

[0104] Rear end sealing: Push the third moving seat 7 forward along the rear track 6 so that the rear end of the pipe pile mold cylinder 8 extends into the concave circular groove 17 of the rotating seat 49. The rear end of the core rod shaft 15 passes through the reserved hole 50 and is locked with the nut 10. The rotating seat 49 is connected to the third moving seat 7 through the bearing 52 and can rotate synchronously with the pipe pile mold cylinder 8.

[0105] The upper end of the pipe pile mold cylinder 8 is also equipped with a pouring pipe for pouring concrete.

[0106] Rotation operation of pipe pile mold cylinder 8:

[0107] Start the servo motor 38, which drives the first pulley 48 to rotate through the second pulley 40 and belt 39, thereby driving the support shaft and a corresponding support cylinder 26 to rotate. Since the support cylinder 26 is in contact with the bottom of the pipe pile mold cylinder 8, the friction drives the pipe pile mold cylinder 8 to rotate, which facilitates subsequent concrete pouring or demolding operations.

[0108] Reset and disassembly:

[0109] Loosen the bolts on the front cover 14 and the nut 10 at the rear end of the core shaft 15, and reset the first moving seat 3, the second moving seat 4, and the third moving seat 7; the core shaft 15 drives the formed pipe pile to move out of the pipe pile mold cylinder 8, and then the core shaft 15 is pulled out from the inside of the formed pipe pile by the movement of the second moving seat 4.

[0110] After removing the pipe pile mold cylinder 8, the first reset spring 33 pushes the lifting seat 29 to rise, the hydraulic oil in the main cylinder 31 flows back, the second reset spring 47 pushes the second piston 46 to move down, the top clamping part resets, and the disassembly is completed.

[0111] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An end plate disassembly and assembly machine for disassembling and assembling pipe pile molds, comprising a base, characterized in that: The base is equipped with a clamping and fixing assembly for clamping and fixing the pipe pile mold cylinder. Under the action of the pipe pile mold cylinder's own gravity, the clamping and fixing assembly clamps and fixes the pipe pile mold cylinder, and the clamping and fixing assembly is also used to drive the pipe pile mold cylinder to rotate. The upper end of the base is also provided with a movable first movable seat, a second movable seat and a third movable seat. The first movable seat is used to place the steel reinforcement cage. The steel reinforcement cage is fitted on the outside of the core rod assembly on the second movable seat. The core rod assembly is used to drive the steel reinforcement cage to extend into the pipe pile mold cylinder together. The first movable seat is also provided with an openable end cap assembly. When the openable end cap assembly is closed, it can achieve the sleeve sealing of the front end of the pipe pile mold cylinder. The third movable seat is provided with a rotatable end cap assembly. When the rotatable end cap assembly extends through the rear end of the core rod assembly and is locked with a nut, the rotatable end cap assembly can sleeve sealing the rear end of the pipe pile mold cylinder. The upper part of the first movable seat is provided with a U-shaped groove for placing the steel reinforcement cage; The openable end cap assembly includes a front end cap that is movably connected to both sides of the rear end of the U-shaped groove by a pin. The rear end of the front end cap is provided with a semi-circular groove for fitting onto the outer side of the front end of the pipe pile mold cylinder, and the middle of the front end cap is provided with a semi-circular hole. The front end cover is provided with connecting ears on the top. After the two sets of connecting ears are fixed with bolts, the two sets of front end covers are closed to achieve the sleeve sealing of the front end of the pipe pile mold cylinder. The rotatable end cap assembly includes a rotating seat with an opening through the third movable seat, a bearing sleeved on the outside of the rotating seat and embedded inside the opening, a limiting ring fixed after the rear end of the rotating seat extends out of the opening, and an internal threaded ring screwed to the outer front part of the rotating seat. The rear end of the pipe pile mold cylinder extends into the concave circular groove at the front end of the rotating seat, and a reserved hole for the core rod shaft is provided in the middle of the concave circular groove. The rear end of the core rod shaft extends out of the reserved hole and is locked and fixed with the nut. The clamping and fixing assembly includes a U-shaped fixing seat mounted on the base, a bottom support member slidingly connected in the cavity at the bottom of the U-shaped fixing seat, and a top clamping member symmetrically and movably connected to both sides of the upper part of the U-shaped fixing seat. After the pipe pile mold cylinder is placed on the upper end of the bottom support, the bottom support will move downward, thereby triggering the linkage component on the U-shaped fixing seat, so that the linkage component drives the top clamping component to rotate and clamp it on the top wall of the pipe pile mold cylinder.

2. The end plate disassembly and assembly machine for disassembling and assembling pipe pile molds according to claim 1, characterized in that: The upper end of the base is provided with a front rail and a rear rail, respectively, and the clamping and fixing assembly is located between the front rail and the rear rail. The second movable seat and the first movable seat are slidably connected on the front track, and the third movable seat is slidably connected on the rear track.

3. The end plate disassembly and assembly machine for disassembling and assembling pipe pile molds according to claim 1, characterized in that: The core rod assembly includes a core rod shaft fixed to the rear end of the second movable seat and a stop plate fixed to the front of the core rod shaft.

4. The end plate disassembly and assembly machine for disassembling and assembling pipe pile molds according to claim 1, characterized in that: The bottom support includes a lifting seat connected inside the cavity by a first return spring, two sets of support shafts movably connected at the upper end of the lifting seat by a bracket plate, a support cylinder fixed on the support shaft, a first pulley fixed in the middle of one set of support shafts, a servo motor fixed in the middle of the upper end of the lifting seat, a second pulley fixed at the output end of the servo motor, and a belt connecting the first pulley and the second pulley. The upper two sides of the U-shaped fixing base are symmetrically fixed with U-shaped bases; The top clamping component includes a rotating cylinder movably connected to the inside of a U-shaped seat by a pin, a clamping cylinder movably connected to the inner side of the rotating cylinder by a U-shaped frame, and a rotating arm connected to the outer side of the rotating cylinder. The rotating arm is provided with a connecting groove.

5. The end plate disassembly and assembly machine for disassembling and assembling pipe pile molds according to claim 4, characterized in that: The cavity sidewall at the bottom of the U-shaped fixing seat is provided with a vertical sliding block, and the side of the lifting seat is provided with a sliding groove for sliding the vertical sliding block.

6. The end plate disassembly and assembly machine for disassembling and assembling pipe pile molds according to claim 4, characterized in that: The linkage assembly includes a first piston connected to the lower middle part of the lifting seat by a first piston rod, a main cylinder fixed in the middle of the cavity, a secondary cylinder connected to the two sides of the bottom of the main cylinder by connecting pipes, a second piston set inside the secondary cylinder, an internally threaded cylinder connected to the second piston rod at the top of the second piston, a U-shaped connector fixed at the top of the internally threaded cylinder, and a connecting pin fixed in the middle of the U-shaped connector. The first piston is disposed in the main cylinder body, and the top of the first piston rod extends through the top of the main cylinder body; The auxiliary cylinder is fixed to the bottom of the U-shaped seat. The top of the second piston rod passes through the auxiliary cylinder and the U-shaped seat and is screwed to the internal threaded cylinder. A second return spring is provided inside the auxiliary cylinder and sleeved on the second piston rod. The second return spring is located between the top wall of the auxiliary cylinder and the top of the second piston. The connecting pin passes through the corresponding connecting groove.

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