CN112192743A - Demoulding treatment method for manufacturing prestressed precast tubular pile - Google Patents
Demoulding treatment method for manufacturing prestressed precast tubular pile Download PDFInfo
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- CN112192743A CN112192743A CN202011196691.9A CN202011196691A CN112192743A CN 112192743 A CN112192743 A CN 112192743A CN 202011196691 A CN202011196691 A CN 202011196691A CN 112192743 A CN112192743 A CN 112192743A
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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
- B28B21/90—Methods or apparatus for demoulding or discharging after shaping
Abstract
The invention belongs to the technical field of building material prestressed precast tubular piles, and particularly relates to a demoulding treatment method for manufacturing a prestressed precast tubular pile, which is completed by matching a demoulding treatment device for manufacturing the prestressed precast tubular pile, wherein the demoulding treatment device for manufacturing the prestressed precast tubular pile comprises a base, the upper surface of the base is horizontally provided with a strip-shaped groove, and the surface of the strip-shaped groove is matched with the outer surface of a lower die of the prestressed precast tubular pile; horizontal sliding grooves which are arranged along the length direction of the strip-shaped groove are symmetrically formed in the upper surface of the base and positioned on two sides of the strip-shaped groove, and horizontal plates which are arranged along the length direction of the strip-shaped groove are in sliding fit in the horizontal sliding grooves; the horizontal plate is provided with a pressurizing mechanism. In the process of demoulding the prestressed precast tubular pile, the invention avoids the damage to the joint surface of the upper die and the lower die and simultaneously avoids the damage to the lower die and the prestressed precast tubular pile.
Description
Technical Field
The invention belongs to the technical field of building material prestressed precast tubular piles, and particularly relates to a demoulding treatment method for manufacturing a prestressed precast tubular pile.
Background
The prestressed precast tubular pile can be divided into a post-tensioning prestressed tubular pile and a pre-tensioning prestressed tubular pile. The pre-tensioning prestressed pipe pile is a hollow cylindrical elongated concrete prefabricated member made up by adopting pre-tensioning prestressed process and centrifugal forming method, mainly formed from cylindrical pile body, end plate and steel ferrule. The prestressed precast tubular pile needs to be subjected to the steps of batching, die filling, material distribution, prestressed tensioning, centrifugal forming, normal-pressure steam curing and demoulding when being manufactured, and the following problems exist in the conventional demoulding process of the prestressed precast tubular pile: (1) the joint surface of the upper die and the lower die of the prestressed precast tubular pile is tightly attached in the centrifugal forming process, and the joint surface of the upper die and the lower die is easily damaged during demoulding and separating; (2) the outer wall of the prestressed precast tubular pile is easily bonded with the inner surfaces of the upper die and the lower die in the demoulding process, the prestressed precast tubular pile can fall under the action of gravity after rising for a short distance along with the upper die in the process of directly opening the upper die, and the prestressed precast tubular pile collides with the inner surface of the lower die to cause the damage of the lower die and the prestressed precast tubular pile.
Disclosure of Invention
Technical problem to be solved
The invention provides a demoulding treatment method for manufacturing a prestressed precast tubular pile, aiming at solving the following problems in the demoulding process of manufacturing the prestressed precast tubular pile: (1) the joint surface of the upper die and the lower die of the prestressed precast tubular pile is tightly attached in the centrifugal forming process, and the joint surface of the upper die and the lower die is easily damaged during demoulding and separating; (2) the outer wall of the prestressed precast tubular pile is easily bonded with the inner surfaces of the upper die and the lower die in the demoulding process, the prestressed precast tubular pile can fall under the action of gravity after rising for a short distance along with the upper die in the process of directly opening the upper die, and the prestressed precast tubular pile collides with the inner surface of the lower die to cause the damage of the lower die and the prestressed precast tubular pile.
(II) technical scheme
In order to solve the technical problems, the invention adopts the following technical scheme:
a demoulding treatment method for manufacturing a prestressed precast tubular pile is completed by matching a demoulding treatment device for manufacturing the prestressed precast tubular pile, and the demoulding treatment device for manufacturing the prestressed precast tubular pile comprises a base, wherein a strip-shaped groove is horizontally arranged on the upper surface of the base, and the surface of the strip-shaped groove is matched with the outer surface of a lower die of the prestressed precast tubular pile. The horizontal sliding grooves which are arranged along the length direction of the strip-shaped groove are symmetrically formed in the two sides of the strip-shaped groove on the upper surface of the base, and horizontal plates which are arranged along the length direction of the strip-shaped groove are arranged in the horizontal sliding grooves in a sliding fit mode. The horizontal plate is provided with a pressurizing mechanism.
The pressurizing mechanism comprises an L-shaped plate, an upper sealing plate, a lower sealing plate, a supporting bar, a guide rod, a supporting spring, a sealing end plate, an Contraband-shaped frame, an elastic expansion plate, a strip-shaped inserting plate and a lead screw. The L-shaped plates are arranged along the length direction of the strip-shaped groove, and the vertical sections of the L-shaped plates are fixedly installed on the upper surface of the horizontal plate. The inner surface of the L-shaped plate vertical section is in sliding fit with a strip-shaped upper sealing plate along the vertical direction, and the inner surface of the L-shaped plate vertical section is fixedly provided with a lower sealing plate. The upper sealing plate and the lower sealing plate are arranged along the length direction of the strip-shaped groove. The inner surface of the L-shaped plate vertical section is located below the upper sealing plate and is horizontally and fixedly provided with a support bar, and a plurality of vertical guide rods are uniformly and fixedly arranged between the upper surface of the support bar and the lower surface of the L-shaped plate horizontal section. And a supporting spring sleeved on the guide rod is vertically arranged between the upper surface of the upper sealing plate and the lower surface of the horizontal section of the L-shaped plate. And sealing end plates are fixedly arranged at two ends of the L-shaped plate, and the end surface of the upper sealing plate is vertically matched with the sealing end plates in a sliding manner. The end face of the lower sealing plate is fixedly connected with the sealing end plate. An Contraband-shaped frame is horizontally and slidably matched on the vertical section of the L-shaped plate, and an elastic expansion plate is vertically and fixedly installed at the end part of the horizontal section of the Contraband-shaped frame. The bottom of the elastic expansion plate is in sliding fit with the upper surface of the lower sealing plate, and the top of the elastic expansion plate is in sliding fit with the lower surface of the upper sealing plate. The end part of the elastic expansion plate is in sliding fit with the sealing end plate. The elastic expansion plate is horizontally and fixedly provided with a strip-shaped inserting plate, and the section of the strip-shaped inserting plate is an isosceles triangle. A lead screw penetrating through the vertical section of the L-shaped plate 21274is horizontally and rotatably arranged on the vertical section of the L-shaped plate.
The demolding treatment method for manufacturing the prestressed precast tubular pile comprises the following steps:
step one, fixing a mold: and placing the lower die on the strip-shaped groove, and rotating the lower die to enable the combined surface of the upper die and the lower die to be in a horizontal state. Promote horizontal plate and upper seal plate for lower seal plate upper surface laminates at the bellied lower surface in lower mould edge, and the laminating of upper seal plate lower surface is on the bellied upper surface in lower mould edge, and the laminating of sealed end plate is on the terminal surface of last mould and lower mould, thereby accomplishes the fixed to last mould and lower mould.
Step two, separating the mould: the Contraband-shaped frame and the elastic expansion plate are driven to move horizontally by rotating the screw rod, the elastic expansion plate extrudes air among the upper sealing plate, the lower sealing plate, the sealing end plate, the edge bulge of the upper die and the edge bulge of the lower die, the air enters a gap of a combined surface of the upper die and the lower die after being pressurized so as to jack the upper die upwards, and the strip-shaped inserting plate is inserted into the combined surface of the upper die and the lower die so as to complete the separation of the upper die and the lower die. And fixing the tubular pile by adopting a lifting appliance, and then taking out the tubular pile from the lower die.
Step three, cleaning the die: and cleaning the inner surfaces of the upper die and the lower die to remove the concrete attached to the inner surfaces.
As a preferred technical solution of the present invention, the rubber sealing sheets are fixedly attached to the lower surface of the upper sealing plate and the upper surface of the lower sealing plate to improve the sealing effect of the lower surface of the upper sealing plate and the lower sealing plate, and ensure that the air pressure between the upper sealing plate, the lower sealing plate, the sealing end plate, the upper mold edge protrusion and the lower mold edge protrusion is increased during the horizontal movement of the Contraband-shaped frame and the elastic expansion plate, so that the upper mold and the lower mold are separated by the air pressure.
As a preferred technical scheme of the invention, a plurality of balls are uniformly and rotatably arranged on the surface of the strip-shaped inserting plate so as to reduce the friction force between the surface of the strip-shaped inserting plate and the edge bulges of the upper die and the lower die and prolong the service life of the strip-shaped inserting plate.
As a preferable technical solution of the present invention, the end of the lead screw is fixedly mounted with a mounting shaft coinciding with the axis thereof, and the end of the mounting shaft is fixedly mounted with a handle. A first gear is fixedly arranged on the mounting shaft. A plurality of arc-shaped grooves and horizontal grooves communicated with all the arc-shaped grooves are uniformly formed in the surfaces of the strip-shaped grooves. The horizontal grooves are arranged along the length direction of the strip-shaped groove. The outer side wall of the base is horizontally provided with an air groove communicated with the horizontal groove. The air groove is internally matched with a threaded rod through threads. One end of the threaded rod is rotatably connected with a sealing block which is in sliding fit in the air groove, and the other end of the threaded rod is fixedly connected with a gear column which is coincident with the axis of the threaded rod and is meshed with the first gear. When the outer surface of the lower die is attached to the surface of the strip-shaped groove, the horizontal groove and the arc-shaped groove are sealed. When the handle is rotated to drive the mounting shaft and the first gear to rotate, the first gear drives the gear column and the threaded rod to rotate. The threaded rod outwards moves along the air groove while rotating, and the sealing block is outwards moved along the air groove while being pulled, so that the air pressure in the air groove, the horizontal groove and the arc-shaped groove is reduced. Because the atmospheric pressure in gas tank, horizontal groove and the arc wall is less than external atmospheric pressure, so external atmospheric pressure can press the lower mould on bar recess, ensures to go up the removal that can not take place vertical direction of mould and lower mould separation in-process lower mould, has improved the effect of last mould and lower mould separation.
As a preferred technical scheme of the invention, the upper surface of the horizontal section of the L-shaped plate is vertically and fixedly provided with a mounting plate which is arranged along the length direction of the strip-shaped groove, and the mounting plate is provided with at least two knocking mechanisms from top to bottom. The knocking mechanism comprises a sliding rod, a mounting rod and a knocking rod. The sliding rod is in sliding fit on the mounting plate along the axis direction of the gear column. The inner end of the sliding rod is fixedly provided with a mounting rod which is arranged along the length direction of the strip-shaped groove, and the mounting rod is uniformly and fixedly provided with a plurality of knocking rods. The outer end of the sliding rod is fixedly provided with a first magnet block. A return spring sleeved on the sliding rod is arranged between the first magnet block and the mounting plate. A rotating shaft parallel to the sliding rod is horizontally and rotatably arranged on the mounting plate, and a second gear is fixedly arranged on the rotating shaft. And a second magnet block corresponding to the first magnet block in position is fixedly arranged on the end surface of the second gear. And a third gear which is meshed with the second gear is fixedly arranged on the mounting shaft. When the handle is rotated to drive the mounting shaft and the third gear to rotate, the third gear drives the second gear, the second magnet block and the rotating shaft to rotate. When the second magnet block is close to the first magnet block, mutual repulsion force is generated between the second magnet block and the first magnet block, the mutual repulsion force pushes the first magnet block and the knocking mechanism to move horizontally, and meanwhile, the reset spring is compressed; and a knocking rod in the knocking mechanism knocks the outer surface of the upper die, so that the upper die vibrates, and the separation effect between the surface of the prestressed precast tubular pile and the inner surface of the upper die is improved. When the second magnet block is far away from the first magnet block, the mutual repulsion force between the second magnet block and the first magnet block disappears, and the knocking mechanism is driven to restore to the initial position through the elastic force of the reset spring. Along with the continuous rotation of second gear and second magnet piece, strike the pole and continuously strike last mould surface.
As a preferable technical scheme of the invention, the inner end of the knocking rod is fixedly provided with the hemispherical rubber block so as to reduce the impact force applied when the knocking rod collides with the outer surface of the upper die and prolong the service life of the knocking rod.
(III) advantageous effects
The invention has at least the following beneficial effects:
(1) the invention solves the following problems in the manufacturing and demoulding process of the prestressed precast tubular pile: the joint surface of the upper die and the lower die of the prestressed precast tubular pile is tightly attached in the centrifugal forming process, and the joint surface of the upper die and the lower die is easily damaged during demoulding and separating; the outer wall of the prestressed precast tubular pile is easily bonded with the inner surfaces of the upper die and the lower die in the demoulding process, the prestressed precast tubular pile can fall under the action of gravity after rising for a short distance along with the upper die in the process of directly opening the upper die, and the prestressed precast tubular pile collides with the inner surface of the lower die to cause the damage of the lower die and the prestressed precast tubular pile.
(2) In the demolding process of the prestressed precast tubular pile, a closed space is arranged between the junction surfaces of an upper die and a lower die, air in the closed space is pressurized, the upper die and the lower die are separated by high-pressure air entering a gap between the junction surfaces of the upper die and the lower die, and the junction surfaces of the upper die and the lower die are further separated by strip-shaped inserting plates; in the whole process, extrusion force cannot be generated between the upper die and the lower die and the joint surface of the upper die and the lower die, so that damage to the joint surface of the upper die and the lower die is avoided.
(3) According to the invention, in the demoulding process of the prestressed precast tubular pile, the outer surface of the upper die is knocked by the knocking mechanism to enable the upper die to vibrate, so that the separation effect between the surface of the prestressed precast tubular pile and the inner surface of the upper die is improved, the prestressed precast tubular pile is ensured not to move in the vertical direction in the opening process of the upper die, and the lower die and the prestressed precast tubular pile are prevented from being damaged.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a step diagram of a demolding treatment method for manufacturing a prestressed precast tubular pile according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an upper die and a lower die of the prestressed precast tubular pile in the embodiment of the invention;
FIG. 3 is a schematic view of the internal structure of a demoulding device for manufacturing prestressed precast tubular piles in the embodiment of the present invention;
FIG. 4 is an enlarged schematic view at A in FIG. 3;
FIG. 5 is a schematic view of a second gear according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a knocking mechanism according to an embodiment of the present invention.
In the figure: 1-base, 2-bar-shaped groove, 3-horizontal sliding groove, 4-horizontal plate, 5-pressurizing mechanism, 51-L-shaped plate, 52-upper sealing plate, 53-lower sealing plate, 54-supporting bar, 55-guide bar, 56-supporting spring, 57-sealing end plate, 58-Contraband-shaped frame, 59-elastic expansion plate, 510-bar-shaped inserting plate, 511-lead screw, 512-rubber sealing plate, 513-ball, 6-mounting shaft, 7-handle, 8-first gear, 9-arc-shaped groove, 10-horizontal groove, 11-air groove, 12-threaded rod, 13-sealing block, 14-gear column, 15-mounting plate, 16-knocking mechanism, 161-sliding rod, 162-mounting rod, 163-knocking rod, 164-rubber block, 17-first magnet block, 18-reset spring, 19-rotating shaft, 20-second gear, 21-second magnet block and 22-third gear.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
The embodiment provides a demoulding treatment method for manufacturing a prestressed precast tubular pile, wherein an upper die and a lower die are structurally shown in fig. 2, and a demoulding treatment device for manufacturing a prestressed precast tubular pile shown in fig. 3 to 6 is adopted to be matched and completed, the demoulding treatment device for manufacturing the prestressed precast tubular pile comprises a base 1, a strip-shaped groove 2 is horizontally arranged on the upper surface of the base 1, and the surface of the strip-shaped groove 2 is matched with the outer surface of the lower die of the prestressed precast tubular pile. The horizontal sliding grooves 3 arranged along the length direction of the strip-shaped groove 2 are symmetrically formed in the two sides of the strip-shaped groove 2 on the upper surface of the base 1, and the horizontal sliding grooves 3 are internally matched with horizontal plates 4 arranged along the length direction of the strip-shaped groove 2 in a sliding mode. The horizontal plate 4 is provided with a pressurizing mechanism 5.
The pressurizing mechanism 5 comprises an L-shaped plate 51, an upper sealing plate 52, a lower sealing plate 53, a supporting bar 54, a guide rod 55, a supporting spring 56, a sealing end plate 57, a lip 21274, a shaped frame 58, an elastic expansion plate 59, a strip-shaped inserting plate 510, a screw 511, a rubber sealing sheet 512 and a ball 513. The L-shaped plates 51 are arranged along the length direction of the strip-shaped groove 2, and the vertical sections of the L-shaped plates 51 are fixedly arranged on the upper surface of the horizontal plate 4. The inner surface of the vertical section of the L-shaped plate 51 is in sliding fit with a strip-shaped upper sealing plate 52 along the vertical direction, and the inner surface of the vertical section of the L-shaped plate 51 is fixedly provided with a lower sealing plate 53. The upper sealing plate 52 and the lower sealing plate 53 are arranged along the length of the bar groove 2. The lower surface of the upper sealing plate 52 and the upper surface of the lower sealing plate 53 are fixedly attached with a rubber sealing sheet 512, so that the sealing effect of the lower surface of the upper sealing plate 52 and the lower sealing plate 53 is improved, and the air pressure among the upper sealing plate 52, the lower sealing plate 53, the sealing end plate 57, the upper die edge protrusion and the lower die edge protrusion is increased in the horizontal moving process of the Contraband-shaped frame 58 and the elastic expansion plate 59, so that the upper die and the lower die are separated through the air pressure. The upper sealing plate 52 is lifted upwards in the process of lifting the upper die, and the elastic expansion plate 59 extends to enable the space among the upper sealing plate 52, the lower sealing plate 53, the sealing end plate 57, the edge bulge of the upper die and the edge bulge of the lower die to be in a closed state all the time. The inner surface of the vertical section of the L-shaped plate 51 is horizontally and fixedly provided with a supporting bar 54 below the upper sealing plate 52, and a plurality of vertical guide rods 55 are uniformly and fixedly arranged between the upper surface of the supporting bar 54 and the lower surface of the horizontal section of the L-shaped plate 51. A supporting spring 56 which is sleeved on the guide rod 55 is vertically arranged between the upper surface of the upper sealing plate 52 and the lower surface of the horizontal section of the L-shaped plate 51. And sealing end plates 57 are fixedly arranged at two ends of the L-shaped plate 51, and the end surface of the upper sealing plate 52 is vertically matched with the sealing end plates 57 in a sliding manner. The end face of the lower seal plate 53 is fixedly connected to the seal end plate 57. An elastic expansion plate 59 is vertically and fixedly arranged at the end part of the horizontal section of the L-shaped plate 51, wherein the vertical section of the L-shaped plate 51 is horizontally matched with the letter 21274, the shape frame 58, the letter 21274and the shape frame 58 in a sliding way. The bottom of the elastic expansion plate 59 is in sliding fit with the upper surface of the lower sealing plate 53, and the top of the elastic expansion plate 59 is in sliding fit with the lower surface of the upper sealing plate 52. The end of the resilient extension plate 59 is a sliding fit with the seal end plate 57. A strip-shaped inserting plate 510 is horizontally and fixedly installed on the elastic expansion plate 59, and the section of the strip-shaped inserting plate 510 is an isosceles triangle. A plurality of balls 513 are uniformly rotatably mounted on the surface of the strip insert 510 to reduce the friction between the surface of the strip insert 510 and the edge protrusions of the upper mold and the lower mold, and to improve the service life of the strip insert 510. A lead screw 511 penetrating through the vertical section of the Contraband-shaped frame 58 is horizontally and rotatably arranged on the vertical section of the L-shaped plate 51.
An installation shaft 6 is fixedly installed at the end of the screw 511, and the end of the installation shaft 6 is fixedly installed with a handle 7. The mounting shaft 6 is fixedly provided with a first gear 8. The surface of the strip-shaped groove 2 is evenly provided with a plurality of arc-shaped grooves 9 and horizontal grooves 10 communicated with all the arc-shaped grooves 9. The horizontal grooves 10 are arranged along the length of the bar-shaped groove 2. An air groove 11 communicated with the horizontal groove 10 is horizontally arranged on the outer side wall of the base 1. A threaded rod 12 is matched in the air groove 11 through threads. One end of the threaded rod 12 is rotatably connected with a sealing block 13 which is in sliding fit with the air groove 11, and the other end of the threaded rod 12 is fixedly connected with a gear column 14 which is superposed with the axis of the threaded rod and is meshed with the first gear 8. When the outer surface of the lower die is attached to the surface of the strip-shaped groove 2, the horizontal groove 10 and the arc-shaped groove 9 are sealed. When the handle 7 is rotated to rotate the mounting shaft 6 and the first gear 8, the first gear 8 drives the gear post 14 and the threaded rod 12 to rotate. The threaded rod 12 rotates while moving outwardly along the air groove 11, and simultaneously pulls the sealing block 13 to move outwardly along the air groove 11, so that the air pressure in the air groove 11, the horizontal groove 10 and the arc-shaped groove 9 is reduced. Because the atmospheric pressure in gas tank 11, horizontal groove 10 and the arc 9 is less than external atmospheric pressure, so external atmospheric pressure can be with the lower mould pressure on bar recess 2, ensures to go up the removal that vertical direction can not take place for the lower mould in mould and the lower mould disengaging process, has improved the effect of last mould and lower mould separation.
The upper surface of the horizontal section of the L-shaped plate 51 is vertically and fixedly provided with a mounting plate 15 which is arranged along the length direction of the strip-shaped groove 2, and at least two knocking mechanisms 16 are arranged on the mounting plate 15 from top to bottom. The tapping mechanism 16 includes a slide lever 161, a mounting lever 162, a tapping lever 163, and a rubber block 164. The slide rod 161 is slidably fitted on the mounting plate 15 in the axial direction of the gear column 14. The inner end of the sliding rod 161 is fixedly provided with a mounting rod 162 arranged along the length direction of the strip-shaped groove 2, and the mounting rod 162 is uniformly and fixedly provided with a plurality of knocking rods 163. The outer end of the slide rod 161 is fixedly provided with a first magnet block 17. A return spring 18 is mounted between the first magnet block 17 and the mounting plate 15 and is fitted over the slide rod 161. A rotating shaft 19 parallel to the sliding rod 161 is horizontally and rotatably mounted on the mounting plate 15, and a second gear 20 is fixedly mounted on the rotating shaft 19. A second magnet block 21 is fixed to an end surface of the second gear 20 at a position corresponding to the first magnet block 17. A third gear 22 is fixedly mounted on the mounting shaft 6 and is meshed with the second gear 20. When the handle 7 is rotated to rotate the mounting shaft 6 and the third gear 22, the third gear 22 drives the second gear 20, the second magnet 21 and the rotating shaft 19 to rotate. When the second magnet block 21 approaches the first magnet block 17, a mutual repulsion force is generated between the second magnet block and the first magnet block 17, the mutual repulsion force pushes the first magnet block 17 and the knocking mechanism 16 to move horizontally, and meanwhile, the return spring 18 is compressed; the knocking rod 163 in the knocking mechanism 16 knocks the outer surface of the upper die, so that the upper die vibrates, thereby improving the separation effect between the surface of the pre-stressed precast tubular pile and the inner surface of the upper die. When the second magnet block 21 is far away from the first magnet block 17, the mutual repulsion force between the two disappears, and the knocking mechanism 16 is driven to return to the initial position by the elastic force of the return spring 18. As the second gear 20 and the second magnet block 21 continue to rotate, the striking rod 163 continues to strike the outer surface of the upper mold. The inner end of the striking rod 163 is fixedly provided with a hemispherical rubber block 164 to reduce the impact force applied when the striking rod 163 collides with the outer surface of the upper die, and to improve the service life of the striking rod 163.
As shown in fig. 1, the demolding treatment method for manufacturing the prestressed precast tubular pile comprises the following steps:
step one, fixing a mold: the lower die is placed on the strip-shaped groove 2, and the lower die is rotated to enable the combined surface of the upper die and the lower die to be in a horizontal state. The horizontal plate 4 and the upper sealing plate 52 are pushed, so that the upper surface of the lower sealing plate 53 is attached to the lower surface of the lower die edge in a protruding manner, the lower surface of the upper sealing plate 52 is attached to the upper surface of the lower die edge in a protruding manner, and the sealing end plate 57 is attached to the end surfaces of the upper die and the lower die, so that the upper die and the lower die are fixed.
Step two, separating the mould: the rotating screw 511 drives Contraband the frame 58 and the elastic expansion plate 59 to move horizontally, the elastic expansion plate 59 extrudes the air among the upper sealing plate 52, the lower sealing plate 53, the sealing end plate 57, the upper die edge bulge and the lower die edge bulge, the air enters the gap of the combined surface of the upper die and the lower die after being pressurized, so that the upper die is lifted upwards, and the strip-shaped inserting plate 510 is inserted into the combined surface of the upper die and the lower die, so that the separation of the upper die and the lower die is completed. In the above process, the second gear 20 and the second magnet block 21 are continuously rotated, and the striking rod 163 continuously strikes the outer surface of the upper mold. And fixing the tubular pile by adopting a lifting appliance, and then taking out the tubular pile from the lower die.
Step three, cleaning the die: and cleaning the inner surfaces of the upper die and the lower die to remove the concrete attached to the inner surfaces.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A demoulding treatment method for manufacturing a prestressed precast tubular pile is characterized by comprising the following steps: the method for manufacturing and demolding the prestressed precast tubular pile is completed by matching a device for manufacturing and demolding the prestressed precast tubular pile, wherein the device for manufacturing and demolding the prestressed precast tubular pile comprises a base (1), a strip-shaped groove (2) is horizontally arranged on the upper surface of the base (1), and the surface of the strip-shaped groove (2) is matched with the outer surface of a lower die of the prestressed precast tubular pile; horizontal sliding chutes (3) which are arranged along the length direction of the strip-shaped groove (2) are symmetrically formed in the upper surface of the base (1) and positioned on two sides of the strip-shaped groove (2), and horizontal plates (4) which are arranged along the length direction of the strip-shaped groove (2) are in sliding fit in the horizontal sliding chutes (3); a pressurizing mechanism (5) is arranged on the horizontal plate (4);
the pressurizing mechanism (5) comprises an L-shaped plate (51), an upper sealing plate (52), a lower sealing plate (53), a supporting bar (54), a guide rod (55), a supporting spring (56), a sealing end plate (57), a lifting guide rail (21274), a shape frame (58), an elastic expansion plate (59), a strip-shaped inserting plate (510) and a lead screw (511); the L-shaped plates (51) are arranged along the length direction of the strip-shaped groove (2), and the vertical sections of the L-shaped plates (51) are fixedly arranged on the upper surface of the horizontal plate (4); the inner surface of the vertical section of the L-shaped plate (51) is in sliding fit with a strip-shaped upper sealing plate (52) along the vertical direction, and the inner surface of the vertical section of the L-shaped plate (51) is fixedly provided with a lower sealing plate (53); the upper sealing plate (52) and the lower sealing plate (53) are arranged along the length direction of the strip-shaped groove (2); a support bar (54) is horizontally and fixedly arranged on the inner surface of the vertical section of the L-shaped plate (51) below the upper sealing plate (52), and a plurality of vertical guide rods (55) are uniformly and fixedly arranged between the upper surface of the support bar (54) and the lower surface of the horizontal section of the L-shaped plate (51); a supporting spring (56) sleeved on the guide rod (55) is vertically arranged between the upper surface of the upper sealing plate (52) and the lower surface of the horizontal section of the L-shaped plate (51); sealing end plates (57) are fixedly arranged at two ends of the L-shaped plate (51), and the end surface of the upper sealing plate (52) is vertically matched with the sealing end plates (57) in a sliding manner; the end surface of the lower sealing plate (53) is fixedly connected with the sealing end plate (57); an Contraband-shaped frame (58) and a v-shaped 21274are horizontally and slidably matched on the vertical section of the L-shaped plate (51), and an elastic expansion plate (59) is vertically and fixedly arranged at the end part of the horizontal section of the L-shaped frame (58); the bottom of the elastic expansion plate (59) is in sliding fit with the upper surface of the lower sealing plate (53), and the top of the elastic expansion plate (59) is in sliding fit with the lower surface of the upper sealing plate (52); the end part of the elastic expansion plate (59) is in sliding fit with the sealing end plate (57); a strip-shaped inserting plate (510) is horizontally and fixedly arranged on the elastic expansion plate (59), and the section of the strip-shaped inserting plate (510) is an isosceles triangle; a screw rod (511) penetrating through the vertical section of the Contraband-shaped frame (58) is horizontally and rotatably arranged on the vertical section of the L-shaped plate (51);
the demolding treatment method for manufacturing the prestressed precast tubular pile comprises the following steps:
step one, fixing a mold: placing the lower die on the strip-shaped groove (2), and rotating the lower die to enable the combined surface of the upper die and the lower die to be in a horizontal state; pushing the horizontal plate (4) and the upper sealing plate (52) to enable the upper surface of the lower sealing plate (53) to be attached to the lower surface of the lower die edge protrusion, the lower surface of the upper sealing plate (52) to be attached to the upper surface of the lower die edge protrusion, and the sealing end plate (57) to be attached to the end surfaces of the upper die and the lower die, so that the upper die and the lower die are fixed;
step two, separating the mould: the rotary screw rod (511) drives the Contraband-shaped frame (58) and the elastic expansion plate (59) to move horizontally, the elastic expansion plate (59) extrudes air among the upper sealing plate (52), the lower sealing plate (53), the sealing end plate (57), the upper die edge bulge and the lower die edge bulge, the air enters a gap between the junction surfaces of the upper die and the lower die after being pressed, so that the upper die is jacked upwards, and the strip-shaped inserting plate (510) is inserted into the junction surfaces of the upper die and the lower die, so that the upper die and the lower die are separated; fixing the pipe pile by using a lifting appliance, and then taking out the pipe pile from the lower die;
step three, cleaning the die: and cleaning the inner surfaces of the upper die and the lower die to remove the concrete attached to the inner surfaces.
2. The method for manufacturing and demolding the prestressed precast tubular pile according to claim 1, wherein the method comprises the following steps: and a rubber sealing sheet (512) is fixedly attached to the lower surface of the upper sealing plate (52) and the upper surface of the lower sealing plate (53).
3. The method for manufacturing and demolding the prestressed precast tubular pile according to claim 1, wherein the method comprises the following steps: and a plurality of balls (513) are uniformly and rotatably arranged on the surface of the strip-shaped inserting plate (510).
4. The method for manufacturing and demolding the prestressed precast tubular pile according to claim 1, wherein the method comprises the following steps: the end part of the screw rod (511) is fixedly provided with a mounting shaft (6) which is overlapped with the axis of the screw rod, and the end part of the mounting shaft (6) is fixedly provided with a handle (7); a first gear (8) is fixedly arranged on the mounting shaft (6); a plurality of arc-shaped grooves (9) and horizontal grooves (10) communicated with all the arc-shaped grooves (9) are uniformly formed in the surface of the strip-shaped groove (2); the horizontal grooves (10) are arranged along the length direction of the strip-shaped groove (2); an air groove (11) communicated with the horizontal groove (10) is horizontally formed in the outer side wall of the base (1); a threaded rod (12) is matched in the air groove (11) through threads; one end of the threaded rod (12) is rotatably connected with a sealing block (13) which is in sliding fit with the air groove (11), and the other end of the threaded rod (12) is fixedly connected with a gear column (14) which is coincident with the axis of the threaded rod and is meshed with the first gear (8).
5. The method for manufacturing and demolding the prestressed precast tubular pile according to claim 4, wherein the method comprises the following steps: the upper surface of the horizontal section of the L-shaped plate (51) is vertically and fixedly provided with a mounting plate (15) which is arranged along the length direction of the strip-shaped groove (2), and the mounting plate (15) is provided with at least two knocking mechanisms (16) from top to bottom; the knocking mechanism (16) comprises a sliding rod (161), a mounting rod (162) and a knocking rod (163); the sliding rod (161) is in sliding fit on the mounting plate (15) along the axial direction of the gear column (14); the inner end of the sliding rod (161) is fixedly provided with a mounting rod (162) which is arranged along the length direction of the strip-shaped groove (2), and a plurality of knocking rods (163) are uniformly and fixedly arranged on the mounting rod (162); a first magnet block (17) is fixedly arranged at the outer end of the sliding rod (161); a return spring (18) sleeved on the sliding rod (161) is arranged between the first magnet block (17) and the mounting plate (15); a rotating shaft (19) parallel to the sliding rod (161) is horizontally and rotatably arranged on the mounting plate (15), and a second gear (20) is fixedly arranged on the rotating shaft (19); a second magnet block (21) corresponding to the first magnet block (17) in position is fixedly arranged on the end surface of the second gear (20); a third gear (22) which is meshed with the second gear (20) is fixedly arranged on the mounting shaft (6).
6. The method for manufacturing and demolding the prestressed precast tubular pile according to claim 5, wherein the method comprises the following steps: the inner end of the knocking rod (163) is fixedly provided with a hemispherical rubber block (164).
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| CN112976295A (en) * | 2021-03-02 | 2021-06-18 | 邓杰 | Manufacturing method of high-strength prestressed concrete precast tubular pile |
| CN113021566A (en) * | 2021-04-20 | 2021-06-25 | 胥復君 | Forming processing method for building heat-insulating energy-saving cement product |
| CN113070997A (en) * | 2021-04-27 | 2021-07-06 | 北京中岩大地科技股份有限公司 | Method for vertically manufacturing tubular pile |
| CN113370382A (en) * | 2021-06-15 | 2021-09-10 | 安徽联众电力科技有限公司 | Combined die for processing telegraph pole |
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