CN113524426A - Manufacturing process of corrosion-resistant prestressed pipe pile - Google Patents
Manufacturing process of corrosion-resistant prestressed pipe pile Download PDFInfo
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- CN113524426A CN113524426A CN202110784500.9A CN202110784500A CN113524426A CN 113524426 A CN113524426 A CN 113524426A CN 202110784500 A CN202110784500 A CN 202110784500A CN 113524426 A CN113524426 A CN 113524426A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/56—Methods or machines specially adapted for the production of tubular articles incorporating reinforcements or inserts
- B28B21/68—Methods or machines specially adapted for the production of tubular articles incorporating reinforcements or inserts and applying centrifugal forces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/04—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass for both machining and other metal-working operations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
- B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
- B24B9/04—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of metal, e.g. skate blades
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/247—Controlling the humidity during curing, setting or hardening
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/56—Methods or machines specially adapted for the production of tubular articles incorporating reinforcements or inserts
- B28B21/60—Methods or machines specially adapted for the production of tubular articles incorporating reinforcements or inserts prestressed reinforcements
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/58—Prestressed concrete piles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
Abstract
The invention provides a manufacturing process of a corrosion-resistant prestressed pipe pile, which comprises the following steps: A. preparing concrete; B. manufacturing a framework; C. entering a mold; D. distributing concrete; E. closing the mold; F. pre-stress tension; G. performing centrifugal molding; H. steaming at normal pressure; I. demolding; J. steaming under high pressure; K. and (5) inspecting a finished product.
Description
Technical Field
The invention relates to a manufacturing process, in particular to a manufacturing process of a corrosion-resistant prestressed pipe pile.
Background
At present, with the rapid development of urban construction, the modernization smell is gradually thickened, and the application of the pipe pile by people is gradually widened; the most common places used for building wharfs, buildings, highway facilities, industrial delivery rooms and the like are the characteristic factors of the tubular pile, the tubular pile has a reasonable structure and complete specifications and varieties, can be effectively applied to different industries, is favored and commented by a plurality of users, and is necessary to design a manufacturing process of the corrosion-resistant prestressed tubular pile in order to be better suitable for severe environments.
Disclosure of Invention
The invention aims to provide a manufacturing process of a corrosion-resistant prestressed pipe pile, aiming at the problems in the prior art, and the manufacturing process has the characteristic of convenience in manufacturing.
The purpose of the invention can be realized by the following technical scheme: the manufacturing process of the corrosion-resistant prestressed pipe pile is characterized by comprising the following steps of:
A. preparing concrete: mixing the following raw materials: placing cement, stone, fly ash, sand, fine grinding sand, water, a water reducing agent, a rust inhibitor and a retarder into stirring equipment for stirring to prepare fresh concrete;
B. manufacturing a framework: cutting off the PC steel bars and the spiral ribs, heading the cut PC steel bars, performing roll welding on the PC steel bars and the spiral ribs by using a roll welding machine to form a reinforcement cage framework, cutting the plate by using a cutting machine, processing the plate by using a rounding welding and polishing integrated machine to obtain steel ferrules, and welding the steel ferrules to the end plate;
C. entering a mold: placing a reinforcement cage in a lower half mould of the mould, sleeving an upper end plate, and installing a tensioning anchor;
D. concrete distribution: uniformly filling the lower half die with fresh concrete according to the dosage requirement of each prestressed pipe pile;
E. die assembly: the upper half mould is hung above the lower half mould, and the upper half mould and the lower half mould are fixed by fasteners, so that the upper half mould and the lower half mould are not loosened and concrete does not run out of the concrete in the high-speed centrifugal operation process;
F. pre-stress tension: tensioning the pipe pile die after die assembly;
G. centrifugal molding: carrying out centrifugal treatment on the pipe pile mould, gradually accelerating according to the centrifugal speeds of initial speed, medium-high speed and high speed, and controlling the centrifugal time to be 20-40min so that the freshly mixed concrete is uniformly distributed to form a concrete member with a hollow cylinder and a uniform section;
H. steaming under normal pressure: curing the centrifugally formed concrete member for 4-8 hours in a water vapor environment at the temperature of 80-88 ℃ to promote hydration and solidification of the concrete;
I. demolding: taking the tubular pile out of the die;
J. high-pressure steam curing: curing the pipe pile with high pressure steam at 1.1-1.3MPa and 196-200 deg.c to reach 28-day strength;
K. and (4) inspecting a finished product: and (4) checking whether the pipe pile has cracks or not, whether the surface finish and the wall thickness are uniformly distributed or not, and performing spot check on the physical properties of the pipe pile to obtain the finished product of the corrosion-resistant prestressed pipe pile.
The cement is ordinary portland cement.
The raw materials comprise the following components in parts by weight: 600 parts of cement 400-containing materials, 1000 parts of stone 950-containing materials, 70-120 parts of fly ash, 500 parts of sand 400-containing materials, 150 parts of ground sand 100-containing materials, 360 parts of water 280-containing materials, 6-12 parts of water reducing agent, 3-9 parts of rust inhibitor and 0.1-0.5 part of retarder.
The rounding welding and polishing integrated machine comprises a bottom plate, wherein a fixed frame is arranged on the bottom plate, two support shafts are horizontally and rotatably arranged on the fixed frame and are arranged in parallel, one end of the fixed frame is hinged with one end of a movable frame, a locking structure is arranged between the other end of the fixed frame and the other end of the movable frame, a power shaft is rotatably arranged on the movable frame and is also connected with a driving motor capable of driving the power shaft to rotate, a mounting frame is fixedly arranged on a base, a guide rail is horizontally and fixedly arranged on the mounting frame, a moving platform is arranged on the guide rail and is connected with a moving structure capable of driving the moving platform to move back and forth, a first push rod motor and a second push rod motor are fixedly arranged on the moving platform, a push rod of the first push rod motor faces downwards vertically, the end part of the push rod of the first push rod motor is connected with a first lifting seat, an automatic welding gun is arranged on the first lifting seat, and the end part of the push rod of the second push rod motor is connected with the second lifting seat, install gear motor on the lift seat two, gear motor's output shaft level sets up, gear motor's first output links to each other with the wheel of polishing, gear motor's second output and auxiliary disc link to each other, are fixed with the extrusion piece on the auxiliary disc, through base plate mounting elasticity gasbag on the mobile station, be connected with intake pipe and gas blow pipe on the elasticity gasbag, the check valve one has in the intake pipe, the check valve two has on the gas blow pipe, and the extrusion piece can contact with the elasticity gasbag repeatedly.
Adopt this structure, through the combined action of power shaft and back shaft, can carry out the rounding with accessory panel, can weld it through automatic welder, can polish its welding department through the emery wheel, simultaneously, along with the extrusion piece is leaned on with elasticity gasbag counterbalance repeatedly, will polish the useless bits of getting off and blow clean, process effectually.
The moving structure comprises a gear, a rack and a servo motor, the rack is horizontally fixed on the mounting frame and parallel to the guide rail, the servo motor is fixed on the moving platform, an output shaft of the servo motor is horizontally arranged, the gear is fixed at the end of the output shaft of the servo motor, and the gear is meshed with the rack.
By adopting the structure, the gear is driven to rotate by the servo motor, and the gear is meshed with the rack, so that the mobile platform moves along the guide rail.
The shape of the extrusion block is semicircular.
The locking structure comprises a hydraulic cylinder, a locking seat and a lock tongue, the locking seat is fixed on the movable frame, the hydraulic cylinder is fixed on the fixed frame, a piston rod of the hydraulic cylinder is vertically upward, the lock tongue is connected to the end part of the piston rod of the hydraulic cylinder in a sliding mode, and the lock tongue can be matched with the locking seat.
By adopting the structure, the fixed frame and the movable frame can be locked or unlocked under the action of the hydraulic cylinder, the locking seat and the lock tongue.
The cutting machine comprises a base, a plurality of horizontally rotating supporting rolls are arranged on the base, a transmission mechanism for transmission is arranged at one end of the base, a punching machine for cutting is arranged in the middle of the base, a blanking mechanism for blanking is arranged at the other end of the base, the blanking mechanism comprises a support, a material guide plate, a blanking strip, a protection piece and an air cylinder, the support is fixed at the other end of the base, the air cylinder is fixed on the support, the cylinder is positioned at one side of the supporting roll, the blanking strip is fixed on a piston rod of the cylinder, the upper end of the material guide plate is hinged with the bracket, the lower end of the material guide plate is connected with a height adjusting structure, the material guide plate is positioned at the other side of the supporting roll, a guide rod is horizontally fixed on the bracket, an adjusting block is movably arranged on the guide rod, a locking screw rod is connected on the adjusting block in a threaded manner, and the locking screw rod can be abutted against the guide rod, the protection piece is connected to the adjusting block, and the protection piece is positioned above the supporting roller.
Adopt this structure, put raw materials panel on the backing roll, drive raw materials panel through transport mechanism and remove, cut off raw materials panel through the punching machine, obtain accessory panel, drive the removal of unloading strip through the cylinder, the outside propelling movement of accessory panel on the backing roll is gone out to the unloading strip, stacks together convenient operation after exporting it through the stock guide.
Move the regulating block along the guide arm, remove the regulating block to suitable position after, through locking screw with the regulating block locking, when can avoid cutting off the operation through the protector, the unexpected perk of panel causes the accident.
A cushion pad is also mounted on the guard.
With this structure, the protection member can have a cushioning function by the cushion pad.
The conveying mechanism comprises a vertical plate, a driving roller, a compression roller and a power motor, the vertical plate is vertically fixed at one end of the base, the driving roller and the compression roller are horizontally and rotatably arranged on the vertical plate, a gap for the plates to pass through is formed between the driving roller and the compression roller, and the end part of the driving roller is further connected with the power motor.
By adopting the structure, the driving roller is driven to rotate by the power motor, and the raw material plates can be accurately transmitted under the matching of the driving roller and the compression roller, so that the fixed-length cutting operation can be realized under the action of the punching machine.
The height adjusting structure comprises a U-shaped frame, the U-shaped frame is fixed on the support, rails are vertically fixed on two sides of the U-shaped frame, sliders are arranged on the rails, one ends of the sliders and connecting rods are connected in a rotating mode, the other ends of the connecting rods and the lower ends of the material guide plates are connected in a rotating mode, lead screws are vertically installed on two sides of the U-shaped frame in a rotating mode, driven gears are fixed at the lower ends of the lead screws, nuts are connected to the lead screws in a threaded mode, the nuts are connected with the sliders in a connecting mode, a linkage rod is installed in the middle of the U-shaped frame in a horizontally rotating mode, a driving gear matched with the driven gears is installed on the linkage rod, and the linkage rod is further connected with a speed reducing motor.
By adopting the structure, the linkage rod is driven to rotate through the speed reducing motor, the linkage rod drives the driving gear to rotate, the driving gear is matched with the driven gear, the driven gear drives the screw rod to rotate, the screw rod drives the nut to move, the sliding block can move up and down along the track, the sliding block enables the guide plate to swing through the connecting rod, the guide plate can be changed along with the change of the stacking height of the accessory plates, and the damage to the edges of the accessory plates is avoided.
And a plurality of arc-shaped guide pieces are further mounted at the lower end of the material guide plate.
By adopting the structure, the accessory plate can better fall off through the arc-shaped guide piece.
Compared with the prior art, the manufacturing process of the corrosion-resistant prestressed pipe pile has the advantages that:
according to the method, the prestressed pipe pile with the corrosion resistance can be manufactured, and meanwhile, a corresponding cutting machine and a corresponding rolling, welding and polishing integrated machine are specially designed, so that the corrosion-resistant prestressed pipe pile can be ensured to have higher quality, and the manufacturing is convenient.
Drawings
FIG. 1 is a schematic plane structure diagram of a rounding, welding and grinding integrated machine.
FIG. 2 is a schematic plan view of a removed portion of the seam welding and grinding machine.
FIG. 3 is a schematic plane structure diagram of an elastic air bag in the rounding welding and grinding integrated machine.
Fig. 4 is a perspective view of the cutter.
Fig. 5 is a schematic plan view of a portion of the cutter removed.
In the figure, 1, a bottom plate; 2. a fixed mount; 3. a support shaft; 4. a hydraulic cylinder; 5. a locking seat; 6. a latch bolt; 7. a drive motor; 8. a power shaft; 9. a movable frame; 10. a mobile station; 11. a servo motor; 12. a gear; 13. a push rod motor II; 14. a push rod motor I; 15. a rack; 16. an automatic welding gun; 17. a first lifting seat; 18. extruding the block; 19. a reduction motor; 20. a second lifting seat; 21. an auxiliary disc; 22. a substrate; 23. a mounting frame; 24. grinding the wheel; 25. a second one-way valve; 26. an air blowing pipe; 27. a one-way valve I; 28. an air inlet pipe; 29. an elastic air bag; 30. a guide rail; 31. a base; 32. a vertical plate; 33. a power motor; 34. a support roller; 35. a punch press; 36. a support; 37. a cylinder; 38. a cushion pad; 39. a guard; 40. a guide bar; 41. locking the screw rod; 42. an adjusting block; 43. a material guide plate; 44. an arc-shaped guide sheet; 45. blanking strips; 46. a compression roller; 47. a drive roll; 48. a connecting rod; 49. a slider; 50. a track; 51. a screw rod; 52. a nut; 53. a driven gear; 54. a driving gear; 55. a U-shaped frame; 56. a linkage rod; 57. a speed reducing motor.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
The manufacturing process of the corrosion-resistant prestressed pipe pile comprises the following steps:
A. preparing concrete: mixing the following raw materials: placing cement, stone, fly ash, sand, fine grinding sand, water, a water reducing agent, a rust inhibitor and a retarder into stirring equipment for stirring to prepare fresh concrete;
B. manufacturing a framework: cutting off the PC steel bars and the spiral ribs, heading the cut PC steel bars, performing roll welding on the PC steel bars and the spiral ribs by using a roll welding machine to form a reinforcement cage framework, cutting the plate by using a cutting machine, processing the plate by using a rounding welding and polishing integrated machine to obtain steel ferrules, and welding the steel ferrules to the end plate;
C. entering a mold: placing a reinforcement cage in a lower half mould of the mould, sleeving an upper end plate, and installing a tensioning anchor;
D. concrete distribution: uniformly filling the lower half die with fresh concrete according to the dosage requirement of each prestressed pipe pile;
E. die assembly: the upper half mould is hung above the lower half mould, and the upper half mould and the lower half mould are fixed by fasteners, so that the upper half mould and the lower half mould are not loosened and concrete does not run out of the concrete in the high-speed centrifugal operation process;
F. pre-stress tension: tensioning the pipe pile die after die assembly;
G. centrifugal molding: carrying out centrifugal treatment on the pipe pile mould, gradually accelerating according to the centrifugal speeds of initial speed, medium-high speed and high speed, and controlling the centrifugal time to be 20-40min so that the freshly mixed concrete is uniformly distributed to form a concrete member with a hollow cylinder and a uniform section; in the present embodiment, the centrifugation time is controlled at 30 min;
H. steaming under normal pressure: curing the centrifugally formed concrete member for 4-8 hours in a water vapor environment at the temperature of 80-88 ℃ to promote hydration and solidification of the concrete; in the embodiment, the curing is carried out for 6 hours in a water vapor environment at 85 ℃;
I. demolding: taking the tubular pile out of the die;
J. high-pressure steam curing: curing the pipe pile with high pressure steam at 1.1-1.3MPa and 196-200 deg.c to reach 28-day strength; in the embodiment, the steam pressure is controlled to be 1.12MPa, and the steam pressure temperature is controlled to be 198 ℃;
K. and (4) inspecting a finished product: and (4) checking whether the pipe pile has cracks or not, whether the surface finish and the wall thickness are uniformly distributed or not, and performing spot check on the physical properties of the pipe pile to obtain the finished product of the corrosion-resistant prestressed pipe pile.
The cement is ordinary portland cement.
The raw materials comprise the following components in parts by weight: 600 parts of cement 400-containing materials, 1000 parts of stone 950-containing materials, 70-120 parts of fly ash, 500 parts of sand 400-containing materials, 150 parts of ground sand 100-containing materials, 360 parts of water 280-containing materials, 6-12 parts of water reducing agent, 3-9 parts of rust inhibitor and 0.1-0.5 part of retarder; in this embodiment, 500 parts of cement, 980 parts of stone, 90 parts of fly ash, 450 parts of sand, 120 parts of ground sand, 300 parts of water, 8 parts of water reducing agent, 5 parts of rust inhibitor and 0.3 part of retarder are adopted, and the water reducing agent, the rust inhibitor and the retarder are all commercially available auxiliary agents.
As shown in fig. 1-3, the rounding, welding and polishing all-in-one machine comprises a base plate 1, wherein a fixing frame 2 is installed on the base plate 1, and in the embodiment, the fixing frame 2 is installed on the base plate 1 in a bolt connection manner; the fixed frame 2 is horizontally and rotatably provided with two support shafts 3, the two support shafts 3 are arranged in parallel, one end of the fixed frame 2 is hinged with one end of the movable frame 9, a locking structure is arranged between the other end of the fixed frame 2 and the other end of the movable frame 9, the movable frame 9 is rotatably provided with a power shaft 8, the power shaft 8 is also connected with a driving motor 7 capable of driving the movable frame to rotate, a mounting frame 23 is fixed on the base 31, and in the embodiment, the mounting frame 23 is fixed on the base 31 in a bolt connection mode; a guide rail 30 is horizontally fixed on the mounting frame 23, a moving table 10 is arranged on the guide rail 30, the moving table 10 is connected with a moving structure capable of driving the moving table to move back and forth, a push rod motor I14 and a push rod motor II 13 are fixed on the moving table 10, a push rod of the push rod motor I14 is vertically downward, the end part of the push rod motor I14 is connected with a lifting seat I17, an automatic welding gun 16 is installed on the lifting seat I17, and in the embodiment, the automatic welding gun 16 adopts the existing products available on the market; the end part of a push rod of the second push rod motor 13 is connected with the second lifting seat 20, the second lifting seat 20 is provided with a speed reducing motor 19, the output shaft of the speed reducing motor 19 is horizontally arranged, the first output end of the speed reducing motor 19 is connected with a grinding wheel 24, the second output end of the speed reducing motor 19 is connected with an auxiliary disc 21, an extrusion block 18 is fixed on the auxiliary disc 21, an elastic air bag 29 is arranged on the mobile station 10 through a base plate 22, an air inlet pipe 28 and an air blowing pipe 26 are connected onto the elastic air bag 29, a one-way valve I27 is arranged on the air inlet pipe 28, a two-way valve II 25 is arranged on the air blowing pipe 26, and the extrusion block 18 can be repeatedly contacted with the elastic air bag 29.
By adopting the structure, the accessory plate can be rounded under the combined action of the power shaft 8 and the supporting shaft 3, the accessory plate can be welded through the automatic welding gun 16, the welding position of the accessory plate can be polished through the polishing wheel 24, and meanwhile, the waste scraps polished are blown clean along with the repeated leaning of the extrusion block 18 and the elastic air bag 29, so that the processing effect is good.
The moving structure comprises a gear 12, a rack 15 and a servo motor 11, the rack 15 is horizontally fixed on a mounting rack 23, the rack 15 is parallel to a guide rail 30, the servo motor 11 is fixed on the moving platform 10, an output shaft of the servo motor 11 is horizontally arranged, the gear 12 is fixed at the end part of the output shaft of the servo motor 11, and the gear 12 is meshed with the rack 15.
With this structure, the servo motor 11 rotates the gear 12, and the gear 12 engages with the rack 15, so that the movable stage 10 moves along the guide rail 30.
The shape of the extrusion block 18 is semi-circular.
Locking structure includes pneumatic cylinder 4, locking seat 5 and spring bolt 6, and locking seat 5 is fixed on adjustable shelf 9, and pneumatic cylinder 4 is fixed on mount 2, and the piston rod of pneumatic cylinder 4 is vertical upwards, and spring bolt 6 sliding connection is at the tailpiece of the piston rod portion of pneumatic cylinder 4, and spring bolt 6 can cooperate with locking seat 5.
By adopting the structure, the fixed frame 2 and the movable frame 9 can be locked or unlocked under the action of the hydraulic cylinder 4, the locking seat 5 and the bolt 6.
As shown in fig. 4-5, the cutting machine includes a base 31, a plurality of support rollers 34 horizontally rotating are disposed on the base 31, a transmission mechanism for transmission is disposed at one end of the base 31, and a punch 35 for cutting is disposed in the middle of the base 31, in this embodiment, the punch 35 is an existing product; the other end of the base 31 is provided with a blanking mechanism for blanking, the blanking mechanism comprises a support 36, a material guide plate 43, a blanking strip 45, a protection piece 39 and a cylinder 37, the support 36 is fixed at the other end of the base 31, the cylinder 37 is fixed on the support 36, the cylinder 37 is positioned on one side of the supporting roller 34, the blanking strip 45 is fixed on a piston rod of the cylinder 37, the upper end of the material guide plate 43 is hinged with the support 36, the lower end of the material guide plate 43 is connected with a height adjusting structure, the material guide plate 43 is positioned on the other side of the supporting roller 34, a guide rod 40 is further horizontally fixed on the support 36, an adjusting block 42 is movably arranged on the guide rod 40, a locking screw rod speed reducing motor 19 is in threaded connection with the adjusting block 42, the locking screw rod speed reducing motor 19 can abut against the guide rod 40, the protection piece 39 is connected on the adjusting block 42, and the protection piece 39 is positioned above the supporting roller 34.
Adopt this structure, put raw materials panel on backing roll 34, drive raw materials panel through transport mechanism and remove, cut off raw materials panel through punching machine 35, obtain accessory panel, drive unloading strip 45 through cylinder 37 and remove, unloading strip 45 stacks together convenient operation after exporting it with accessory panel outside propelling movement on backing roll 34 through stock guide 43.
The adjusting block 42 is moved along the guide rod 40, after the adjusting block 42 is moved to a proper position, the adjusting block 42 is locked by the locking screw speed reducing motor 19, and accidents caused by the fact that the plate is tilted accidentally when the cutting operation is carried out can be avoided through the protection piece 39.
A cushion pad 38 is also mounted on the guard 39.
With this structure, the guard 39 can have a cushioning function by the cushion pad 38.
The transmission mechanism comprises a vertical plate 32, a driving roller 47, a pressing roller 46 and a power motor 33, the vertical plate 32 is vertically fixed at one end of the base 31, the driving roller 47 and the pressing roller 46 are horizontally and rotatably arranged on the vertical plate 32, a gap for the plate to pass through is formed between the driving roller 47 and the pressing roller 46, the end part of the driving roller 47 is further connected with the power motor 33, in the embodiment, the power motor 33 is installed on the vertical plate 32, and the output shaft of the power motor 33 is horizontally arranged.
By adopting the structure, the driving roller 47 is driven to rotate by the power motor 33, and the raw material plates can be accurately transmitted under the matching of the driving roller 47 and the compression roller 46, so that the fixed-length cutting operation can be realized under the action of the punching machine 35.
The height adjusting structure comprises a U-shaped frame 55, the U-shaped frame 55 is fixed on the bracket 36, in the embodiment, the U-shaped frame 55 is fixed on the bracket 36 through a bolt connection mode; the two sides of the U-shaped frame 55 are vertically fixed with tracks 50, each track 50 is provided with a sliding block 49, each sliding block 49 is rotatably connected with one end of a connecting rod 48, the other end of each connecting rod 48 is rotatably connected with the lower end of the material guide plate 43, the two sides of the U-shaped frame 55 are vertically and rotatably provided with a lead screw 51, the lower end of each lead screw 51 is fixed with a driven gear 53, each lead screw 51 is in threaded connection with a nut 52, each nut 52 is connected with each sliding block 49, the middle of the U-shaped frame 55 is horizontally and rotatably provided with a linkage rod 56, each linkage rod 56 is provided with a driving gear 54 matched with the driven gear 53, and each linkage rod 56 is further connected with a speed reducing motor 19.
By adopting the structure, the linkage rod 56 is driven to rotate by the speed reducing motor 19, the linkage rod 56 drives the driving gear 54 to rotate, the driving gear 54 is matched with the driven gear 53, the driven gear 53 drives the screw rod 51 to rotate, the screw rod 51 drives the nut 52 to move, so that the slide block 49 can move up and down along the track 50, the slide block 49 enables the material guide plate 43 to swing through the connecting rod 48, the material guide plate 43 can change along with the change of the stacking height of the accessory plates, and the damage to the edges of the accessory plates is avoided.
The lower end of the material guide plate 43 is also provided with a plurality of arc-shaped guide pieces 44.
With this structure, the fitting sheet can be better dropped by the arc-shaped guide piece 44.
The above components are all standard components or components known to those skilled in the art, and the structure and principle thereof can be known to those skilled in the art through technical manuals or through routine experiments.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (7)
1. The manufacturing process of the corrosion-resistant prestressed pipe pile is characterized by comprising the following steps of:
A. preparing concrete: mixing the following raw materials: placing cement, stone, fly ash, sand, fine grinding sand, water, a water reducing agent, a rust inhibitor and a retarder into stirring equipment for stirring to prepare fresh concrete;
B. manufacturing a framework: cutting off the PC steel bars and the spiral ribs, heading the cut PC steel bars, performing roll welding on the PC steel bars and the spiral ribs by using a roll welding machine to form a reinforcement cage framework, cutting the plate by using a cutting machine, processing the plate by using a rounding welding and polishing integrated machine to obtain steel ferrules, and welding the steel ferrules to the end plate;
C. entering a mold: placing a reinforcement cage in a lower half mould of the mould, sleeving an upper end plate, and installing a tensioning anchor;
D. concrete distribution: uniformly filling the lower half die with fresh concrete according to the dosage requirement of each prestressed pipe pile; (ii) a
E. Die assembly: the upper half mould is hung above the lower half mould, and the upper half mould and the lower half mould are fixed by fasteners, so that the upper half mould and the lower half mould are not loosened and concrete does not run out of the concrete in the high-speed centrifugal operation process;
F. pre-stress tension: tensioning the pipe pile die after die assembly;
G. centrifugal molding: carrying out centrifugal treatment on the pipe pile mould, gradually accelerating according to the centrifugal speeds of initial speed, medium-high speed and high speed, and controlling the centrifugal time to be 20-40min so that the freshly mixed concrete is uniformly distributed to form a concrete member with a hollow cylinder and a uniform section;
H. steaming under normal pressure: curing the centrifugally formed concrete member for 4-8 hours in a water vapor environment at the temperature of 80-88 ℃ to promote hydration and solidification of the concrete;
I. demolding: taking the tubular pile out of the die;
J. high-pressure steam curing: curing the pipe pile with high pressure steam at 1.1-1.3MPa and 196-200 deg.c to reach 28-day strength;
K. and (4) inspecting a finished product: and (4) checking whether the pipe pile has cracks or not, whether the surface finish and the wall thickness are uniformly distributed or not, and performing spot check on the physical properties of the pipe pile to obtain the finished product of the corrosion-resistant prestressed pipe pile.
2. The manufacturing process of the corrosion-resistant prestressed pipe pile according to claim 1, wherein the cement is ordinary portland cement.
3. The manufacturing process of the corrosion-resistant prestressed pipe pile according to claim 1, wherein the raw materials comprise, by weight: 600 parts of cement 400-containing materials, 1000 parts of stone 950-containing materials, 70-120 parts of fly ash, 500 parts of sand 400-containing materials, 150 parts of ground sand 100-containing materials, 360 parts of water 280-containing materials, 6-12 parts of water reducing agent, 3-9 parts of rust inhibitor and 0.1-0.5 part of retarder.
4. The manufacturing process of the corrosion-resistant prestressed pipe pile according to claim 1, wherein the rounding, welding and polishing all-in-one machine comprises a bottom plate (1), a fixed frame (2) is installed on the bottom plate (1), two supporting shafts (3) are horizontally and rotatably arranged on the fixed frame (2), the two supporting shafts (3) are arranged in parallel, one end of the fixed frame (2) is hinged with one end of a movable frame (9), a locking structure is arranged between the other end of the fixed frame (2) and the other end of the movable frame (9), a power shaft (8) is rotatably arranged on the movable frame (9), the power shaft (8) is further connected with a driving motor (7) capable of driving the movable frame to rotate, an installation frame (23) is fixed on a base, a guide rail (30) is horizontally fixed on the installation frame (23), a moving platform (10) is arranged on the guide rail (30), and the moving platform (10) is connected with a moving structure capable of driving the moving platform to move back and forth, a first push rod motor (14) and a second push rod motor (13) are fixed on the moving platform (10), a push rod of the first push rod motor (14) is vertically downward, the end part of the push rod of the first push rod motor (14) is connected with a first lifting seat (17), an automatic welding gun (16) is installed on the first lifting seat (17), the end part of the push rod of the second push rod motor (13) is connected with a second lifting seat (20), a speed reducing motor (19) is installed on the second lifting seat (20), an output shaft of the speed reducing motor (19) is horizontally arranged, a first output end of the speed reducing motor (19) is connected with a grinding wheel (24), a second output end of the speed reducing motor (19) is connected with an auxiliary disc (21), an extrusion block (18) is fixed on the auxiliary disc (21), an elastic air bag (29) is installed on the moving platform (10) through a base plate (22), an air inlet pipe (28) and an air blowing pipe (26) are connected on the elastic air bag (29), the air inlet pipe (28) is provided with a one-way valve I (27), the air blowing pipe (26) is provided with a one-way valve II (25), and the extrusion block (18) can be repeatedly contacted with the elastic air bag (29).
5. The manufacturing process of the corrosion-resistant prestressed pipe pile according to claim 4, wherein the moving structure comprises a gear (12), a rack (15) and a servo motor (11), the rack (15) is horizontally fixed on a mounting frame (23), the rack (15) and a guide rail (30) are parallel to each other, the servo motor (11) is fixed on a moving table (10), an output shaft of the servo motor (11) is horizontally arranged, the gear (12) is fixed at the end part of the output shaft of the servo motor (11), and the gear (12) is meshed with the rack (15).
6. The manufacturing process of the corrosion-resistant prestressed pipe pile according to claim 1, wherein the shape of the extrusion block (18) is semicircular.
7. The manufacturing process of the corrosion-resistant prestressed pipe pile according to claim 4, wherein the locking structure comprises a hydraulic cylinder (4), a locking seat (5) and a locking bolt (6), the locking seat (5) is fixed on a movable frame (9), the hydraulic cylinder (4) is fixed on a fixed frame (2), a piston rod of the hydraulic cylinder (4) is vertically upward, the locking bolt (6) is slidably connected to the end part of the piston rod of the hydraulic cylinder (4), and the locking bolt (6) can be matched with the locking seat (5).
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| CN113524426B (en) | 2023-04-14 |
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