CN114102816B - Polygonal prefabricated thin-shell three-dimensional structure modular mold - Google Patents
Polygonal prefabricated thin-shell three-dimensional structure modular mold Download PDFInfo
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- CN114102816B CN114102816B CN202111384660.0A CN202111384660A CN114102816B CN 114102816 B CN114102816 B CN 114102816B CN 202111384660 A CN202111384660 A CN 202111384660A CN 114102816 B CN114102816 B CN 114102816B
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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
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/22—Moulds for making units for prefabricated buildings, i.e. units each comprising an important section of at least two limiting planes of a room or space, e.g. cells; Moulds for making prefabricated stair units
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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
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/02—Moulds with adjustable parts specially for modifying at will the dimensions or form of the moulded article
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Abstract
The invention discloses a polygonal prefabricated thin-shell cavity three-dimensional structure modular mold which consists of an internal mold fixing and dismounting device, an internal mold system, an external mold system, a clip-shaped end plate and a fastening outer ring, wherein the internal mold fixing and dismounting device is connected with the internal mold system; the inner mold fixing and dismounting device is used for fixing an inner mold system during member prefabrication, and can be used for realizing the prefabrication of a thin-shell cavity structure by actively dismounting the function of the inner mold system during template dismounting; the components of each plate of the outer die system and the inner die system are processed into a 'one' -shaped plate and a corner connecting piece in a modularized mode, and prefabricated parts with different section forms and geometric dimensions can be prefabricated. The mold can be used for prefabricating solid prefabricated parts and cavity prefabricated parts, modularization processing is achieved, the applicability and turnover frequency of a unit template are improved, and the cost of the template and the production cost of the prefabricated parts are reduced. The utilization rate of the die is greatly improved, the cost of building the assembly type structure is reduced, and the popularization and utilization rate of the assembly type structure is improved.
Description
Technical Field
The invention belongs to a die in the field of an assembled concrete structure, and particularly relates to a polygonal prefabricated thin-shell three-dimensional structure modular die.
Background
The prefabricated concrete structural member is prefabricated in a prefabricating factory and transported to a construction site for assembly, so that a large number of site templates are saved, the application of construction auxiliary materials is reduced, and the resource waste is reduced. However, different dies are required to be customized by steel plates according to different sizes and section forms of components in factory prefabrication, the types or sizes of the components are increased, different templates are required to be customized particularly for special-shaped components, the effective utilization times of the templates are reduced, the production cost of the prefabricated components is high, and the industrial process of the building industry is hindered.
Disclosure of Invention
In order to solve the problems in the prior art, based on the modularization idea, the invention aims to provide a polygonal prefabricated thin-shell three-dimensional structure modularization die to reduce high template cost in the prefabrication process of special-shaped components, improve the turnover times and applicability of templates and solve the problem of prefabrication of cavity type prefabricated components.
In order to realize the task, the invention adopts the following technical solution:
a polygonal prefabricated thin-shell three-dimensional cavity structure modular mold comprises an inner mold fixing and dismounting device, an inner mold system, an outer mold system, a square-back end plate and a hooping outer ring;
the internal mold fixing and dismounting device is used for fixing an internal mold system during the prefabrication of components, and actively dismounting the internal mold system during the dismounting of the template so as to realize the prefabrication of a thin-shell cavity structure; the internal mold fixing and dismounting device comprises a V-shaped stay bar, a combined module, a movable connecting rod and an axial stretching rod;
the outer and inner mould systems are used for prefabricating prefabricated parts of different section forms and geometrical dimensions, wherein:
the inner mold system comprises an inner mold corner connecting piece, a tongue-and-groove flat plate and an inner supporting plate;
the outer mold system comprises outer mold corner connectors and butt joint flat plates.
The form of the outer edge line of the square-shaped end plate is the same as the form of the section of the prefabricated thin shell structure, and the square-shaped end plate comprises a square, a regular hexagon or a regular octagon; the inner edge line is circular, the size of the inner edge line is larger than the diameter of the screw rod at the end part of the axial stretching rod, two third screw rods are arranged at the position of the horizontal center line and are fixed with the T-shaped bayonet lock of the inner supporting plate of the inner die system through a double-ring plate;
the tightening outer ring consists of two half-edge outer rings, namely a first half-edge outer ring and a second half-edge outer ring, the two half-edge outer rings are fixedly connected through a third screw rod, and the inner diameter of the tightening outer ring is the same as the outer diameter and the shape of the outer die system.
The V-shaped stay bar consists of a female connecting rod and Yang Liangan, the female connecting rod and the male connecting rod are identical in structure, one end of the female connecting rod and the male connecting rod is connected with an inner stay plate of the internal mold system through a bolt after forming a certain angle, the inner stay plate of the internal mold system is detached firstly in the template detaching stage, and the other end of the V-shaped stay bar is combined to form a concentric circle structure and then is connected and fixed with the combined module.
Two mutually perpendicular's recesses are seted up respectively on two opposite faces of composite module, and the through bolt hole is seted up respectively to the recess side, is carved with the screw thread respectively in the hole of bolt hole, is first recess and second recess respectively, and first recess is located surface middle part for connect V type vaulting pole, and the second recess is located opposite face middle part top, and link up to the side, and inside forms a 90 for connect the movable connecting rod.
Round holes are formed in two ends of the movable connecting rod, one end of the movable connecting rod is connected with the combined module through a bolt, and the other end of the movable connecting rod is connected with a first lug plate on the side face of the axial stretching rod through a bolt.
The axial stretching rod is a hollow steel pipe with a screw rod at one end, the cross section of the axial stretching rod is triangular or quadrangular, the axial stretching rod is respectively suitable for the cross section of a prefabricated part of a regular hexagon, a regular quadrangle or a regular octagon, first lug plates are welded at the positions of 1/4 and 3/4 of the rod piece on each surface of the axial stretching rod and used for connecting a movable connecting rod, and the screw rod at the end part is used for fixing the axial stretching rod on a clip-shaped end plate.
The cross section of the internal mold corner connecting piece is in an anti-symmetric form, the end part of the internal mold corner connecting piece is a single-side notch, the internal mold corner connecting piece is matched with the tongue-and-groove flat plate and the internal supporting plate, the whole internal mold corner connecting piece is of a broken line type, the angle of two straight lines is 90 degrees, 120 degrees or 135 degrees, and the internal mold corner connecting piece is used for connecting and fixing each internal mold plate of a square, a regular hexagon or a regular octagon, namely the tongue-and-groove flat plate and the internal supporting plate to form an internal mold system;
the cross sections of the tongue-and-groove flat plate and the inner supporting plate are the same, two ends of the tongue-and-groove flat plate are single-edge notches, the long edge of the inner supporting plate is provided with a second lug plate and a T-shaped clamping pin in a protruding mode, the second lug plate is used for being connected with a V-shaped support rod of the inner mold dismounting and fixing device, and the end portion of the T-shaped clamping pin is carved with threads for fixing the clip end plate.
The cross section of the outer die corner connecting piece is in a right-to-symmetrical form, the end part of the outer die corner connecting piece is convex, the outer die corner connecting piece is generally in a broken line shape, the angle of two straight lines is 90 degrees, 120 degrees or 135 degrees, the outer die corner connecting piece is used for connecting and fixing each outer template of a square, a regular hexagon or a regular octagon, namely a butt joint flat plate, the butt joint flat plate comprises a first butt joint flat plate and a second butt joint flat plate, the cross section forms of the first butt joint flat plate and the second butt joint flat plate are the same, the end part of the butt joint flat plate is concave, and the butt joint flat plate is matched with the outer die corner connecting piece; wherein:
first bolt holes are formed in the positions, 1/4 and 3/4, of the center line of the first butt-joint flat plate, threads are engraved in the first butt-joint flat plate, the positions of the first butt-joint flat plate correspond to the positions of the tongue-and-groove flat plate of the internal mold system, and the positions of the tongue-and-groove flat plate are fixed through bolts.
Two groups of screws which are first screws are arranged at the positions of 1/4 and 3/4 of the central line of the second butt-joint flat plate and are connected with the double T-shaped supporting legs, and the position of the second butt-joint flat plate is a lower plate when the prefabricated part is horizontally poured.
The assembling and disassembling method of the polygonal prefabricated thin-shell cavity three-dimensional structure modular mold is characterized by comprising the following steps of:
firstly, horizontally pouring, namely horizontally pouring, a polygonal prefabricated thin-shell cavity three-dimensional structural member, assembling a lower half part of an external mold system, screwing a screw rod into and penetrating through a first bolt hole of a first butt-joint flat plate, enabling a bolt to penetrate through the first butt-joint flat plate for the length of the prefabricated thin-shell cavity three-dimensional structural member, and accurately adjusting the thickness of the cavity structure through threads;
secondly, assembling the internal mold disassembling and fixing device and the internal mold system, and placing the internal mold disassembling and fixing device and the internal mold system into the external mold system without the upper half part;
thirdly, assembling the upper half external mold system, adjusting the thickness of the cavity structure of the prefabricated part through a screw rod in the first bolt hole, the tongue-and-groove flat plate of the internal mold system is fixed, and the butt joint flat plate at the uppermost side of the external mold system is vacant, so that the cement-based material is convenient to pour;
fourthly, mounting a square-shaped end plate and a tightening outer ring to form a closed prefabricated part cavity, fixing an axial stretching rod to the end part of the square-shaped end plate through a nut, adjusting the levelness of the whole mould through a threaded sleeve of a double-T supporting leg to complete mould assembly, and pouring a cement-based material;
fifthly, after the prefabricated thin-wall three-dimensional cavity structure reaches the form removal strength, firstly removing the clip-shaped end plate and the peripheral tightening outer ring at the end part of the component, removing the outer mold system, driving the movable connecting rod and the V-shaped stay bar through axial stretching, removing the inner stay plate, and then removing the inner mold corner connecting piece and the rabbet flat plate.
The invention discloses a modular mold of a polygonal prefabricated thin-shell three-dimensional cavity structure, which brings technical innovation that:
1. the mould is standardized to be grouped or unitized, a plurality of standardized modules are formed, the practicability and the turnover number of the template are improved, and some functional devices are arranged by combining the characteristics of the cavity type prefabricated part to form the integral mould.
2. The prefabricated three-dimensional cavity structure can effectively meet the prefabrication requirements of different prefabricated three-dimensional cavity structures, different geometric shapes including quadrangles, hexagons, octagons and the like can be adapted by adjusting the inner die corner connecting piece and the outer die corner connecting piece, the sizes of the tongue-and-groove flat plate, the butt joint flat plate and the inner supporting plate can be adjusted to adapt to different geometric sizes, and the prefabrication of solid prefabricated parts can be realized only by the outer die system; the internal mold dismounting and fixing device can achieve the function of dismounting the internal mold and simultaneously realize prefabrication of the cavity type prefabricated part. The modular mold greatly improves the utilization rate of the mold, can save the cost of the prefabricated part template, reduces the cost of the construction of the assembly type structure and improves the popularization and utilization rate of the assembly type structure.
Drawings
Fig. 1 is a schematic overall structure diagram of a polygonal prefabricated thin-shell three-dimensional cavity structure modular mold of the invention.
Fig. 2 (a) is a schematic structural view of the inner mold dismounting and fixing device.
Fig. 2 (b) is a schematic view of the V-shaped supporting structure of the inner mold dismounting and fixing device.
Fig. 2 (c) is a schematic structural diagram of a combined module of the internal mold dismounting and fixing device.
Fig. 2 (d) is a schematic view of the movable connecting rod structure of the internal mold dismounting and fixing device.
Fig. 2 (e) is a schematic structural view of an axial stretching rod of the inner mold dismounting and fixing device.
Fig. 3 (a) is a schematic structural view of the internal mold system.
Fig. 3 (b) is a schematic structural diagram of an inner mold corner connector of the inner mold system.
Fig. 3 (c) is a schematic diagram of an inner support plate structure of the inner mold system.
Fig. 3 (d) is a schematic diagram of a tongue-and-groove flat plate structure of the internal mold system.
Fig. 4 (a) is a schematic structural view of an external mold system.
Fig. 4 (b) is a schematic structural diagram of an external mold corner connector of an external mold system.
Fig. 4 (c) is a schematic structural view of a first butt plate of the outer mold system.
Fig. 4 (d) is a schematic structural view of a second butt plate of the outer mold system.
Fig. 4 (e) is a schematic diagram of the structure of the butt-joint flat plate of the outer mold system.
Fig. 5 is a schematic view of a clip-type end plate.
FIG. 6 is a schematic view of a double ring plate structure.
Fig. 7 is a schematic view of the structure of the tightening outer ring.
FIG. 8 is a schematic view of a dual T-bar support structure.
Fig. 9 is a schematic diagram of a square and a regular hexagon.
The symbols in the figures represent:
1. the inner mold fixing and dismounting device 2, an inner mold system 3, an outer mold system 4, a clip end plate 5 and an outer ring are tightly hooped;
11. the device comprises a V-shaped support rod 12, a combined module 13, a movable connecting rod 14 and an axial stretching rod;
21. an inner mold corner connecting piece 22, a tongue-and-groove flat plate 23 and an inner supporting plate;
31. the external mold corner connecting piece 32, a first butt joint flat plate 33, a second butt joint flat plate 34 and a butt joint flat plate;
111. the connecting rod comprises a female connecting rod 112, a female connecting rod Yang Liangan, a first groove 121, a first groove 122, a second groove 141 and a first lug plate;
231. a second ear plate 232 and a T-shaped clamping pin;
321. a first bolt hole; 331. a first screw rod 332 and double T-shaped supporting legs;
3321. a second screw 3322, a threaded sleeve;
41. a third screw 42, a double ring plate;
51. a first half-shaped outer ring, 52, a second half-shaped outer ring, 53 and a fourth screw.
The invention will be described in further detail below with reference to the drawings and examples.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the drawings used in the description of the embodiments will be briefly introduced, and it should be apparent that the drawings in the description are only some preferred embodiments of the present invention, and the present invention is not limited to these embodiments. For a person skilled in the art, without inventive effort, further figures can be obtained from these figures.
With the above brief introduction to the invention and the following detailed description in mind, the accompanying detailed description of the elements is better understood.
Referring to fig. 1 to 9, the present embodiment provides a polygonal prefabricated thin-shell three-dimensional cavity structure modular mold, which can be used for prefabricating solid prefabricated components and cavity prefabricated components; the device consists of an internal mold fixing and dismounting device 1, an internal mold system 2, an external mold system 3, a clip-shaped end plate 4 and a hooping outer ring 5;
the internal mold fixing and dismounting device 1 is used for fixing an internal mold system during the prefabrication of components, and actively dismounting the internal mold system during the dismounting of a template to realize the prefabrication of a thin-shell cavity structure; the internal mold fixing and dismounting device comprises a V-shaped support rod 11, a combined module 12, a movable connecting rod 13 and an axial stretching rod 14;
the outer die system 3 and the inner die system 2 are used for prefabricating prefabricated components with different section forms and geometric dimensions, all plates of the outer die system 3 and the inner die system 2 are made into 'one' -shaped plates and corner connecting pieces in a modularized mode, and the prefabricated components with different section forms and geometric dimensions can be prefabricated.
Wherein:
the internal mold system 2 comprises an internal mold corner connecting piece 21, a tongue-and-groove flat plate 22 and an internal supporting plate 23;
the outer die system 3 comprises an outer die corner connector 31, a first butt flat plate 32, a second butt flat plate 33 and a butt flat plate 34;
the form of the outer edge line of the square-shaped end plate 4 is the same as the form of the section of the prefabricated thin shell structure, and the square-shaped end plate comprises a square, a regular hexagon or a regular octagon; the inner edge line is circular, the size of the inner edge line is larger than the diameter of a screw rod at the end part of the axial stretching rod, two third screw rods 41 are arranged at the position of a horizontal center line and are fixed with T-shaped clamping pins of an inner support plate 23 of the inner die system 2 through a double-ring plate 42;
the tightening outer ring 5 consists of two half-edge outer rings (51,2), namely a first half-edge outer ring 51 and a second half-edge outer ring 52, the two half-edge outer rings (51, 52) are fixedly connected through a fourth screw 53, and the inner diameter of the tightening outer ring 5 is the same as the outer diameter and the shape of the outer die system 3.
The V-shaped stay bar 11 consists of a female connecting rod 111 and a male connecting rod 112, the female connecting rod and the male connecting rod Yang Liangan (111, 112) have the same structure, one end of the V-shaped stay bar is connected with an inner stay plate 23 of the inner die system 2 through a bolt after forming a certain angle, and the other end of the V-shaped stay bar is connected and fixed with the combined module 12 after being combined to form a concentric circle structure.
The inner mold is disassembled from the combined module 12 of the fixing device 1, two grooves (121, 122) which are vertical to each other are respectively arranged on two opposite surfaces, through bolt holes are respectively arranged on the side surfaces of the two grooves (121, 122), and threads are respectively carved in the holes of the bolt holes and are used for fixedly penetrating through the V-shaped stay bar 11; the two grooves are respectively a first groove 121 and a second groove 122, the first groove 121 is located in the middle of the surface and used for being connected with the V-shaped support rod 11, and two ends of the first groove are not communicated, so that the opening angle of the V-shaped support rod 11 is convenient to limit; the second groove 122 is located above the middle portion of the opposite surface and penetrates to the side for connecting the movable link 13, and forms a 90 ° inside for limiting the rotation angle of the movable link 13.
The axial stretching rod 14 of the internal mold fixing and detaching device 1 is a hollow steel pipe with a screw rod at one end, the cross section of the axial stretching rod 14 is triangular or quadrangular, the axial stretching rod 14 is respectively suitable for the cross section of a prefabricated cavity component of a regular hexagon, a regular quadrangle or a regular octagon, first lug plates 141 are welded at the positions of 1/4 and 3/4 of the rod piece on each surface of the axial stretching rod 14 and are used for connecting movable connecting rods 13, the movable connecting rods 13 are driven by the axial stretching rod 14 when the internal mold system 2 is detached, the V-shaped stay rods 11 are finally driven, the internal support plates 23 are detached, and then the internal mold corner connecting pieces 21 and the rabbet flat plates 22 are conveniently detached.
The cross section of the inner mold corner connecting piece 21 of the inner mold system 2 is in an anti-symmetric form, the end part of the inner mold corner connecting piece is a single-side notch, the inner mold corner connecting piece is matched with the rabbet flat plate 22 and the inner supporting plate 23, the whole inner mold corner connecting piece is of a broken line type, the angle of two straight lines is 90 degrees, 120 degrees or 135 degrees, and the inner mold corner connecting piece is used for connecting and fixing each inner mold plate of a square, a regular hexagon or a regular octagon, namely the rabbet flat plate 22 and the inner supporting plate 23 to form the inner mold system 2.
The cross section of the tongue-and-groove flat plate 22 and the cross section of the inner supporting plate 23 of the inner mold system 2 are the same, two ends of the tongue-and-groove flat plate are single-side notches, the long side of the inner supporting plate 23 is provided with a second lug plate 231 and a T-shaped bayonet lock, the second lug plate 231 is used for being connected with a V-shaped supporting rod 11 of the inner mold dismounting and fixing device, the end part of the T-shaped bayonet lock is carved with threads and used for fixing a clip-shaped end plate 4 which is propped against the end part of the inner mold system 2.
The cross section of the outer mold corner connecting piece 31 of the outer mold system 3 is in a right-symmetrical form, the end part is convex, the whole body is in a broken line shape, the angle of two straight lines is 90 degrees, 120 degrees or 135 degrees, the outer mold corner connecting piece is used for connecting and fixing each square, regular hexagon or regular octagon outer mold plate, namely a butt joint flat plate 34, the butt joint flat plate 34 comprises a first butt joint flat plate 32 and a second butt joint flat plate 33, the cross section forms of the first butt joint flat plate and the second butt joint flat plate are the same, and the end part is concave and is matched with the outer mold corner connecting piece 31.
First bolt holes are arranged at the positions of 1/4 and 3/4 of the central line of the first butt flat plate 32 of the outer die system 3, threads are carved in the first butt flat plate 32, the positions of the first butt flat plate 32 correspond to those of the tongue-and-groove flat plate 22 of the inner die system 2, and bolts penetrate through the first butt flat plate 32 and then fix the spatial positions of the tongue-and-groove flat plate 22.
Two groups of screw rods are arranged at the positions of 1/4 and 3/4 of the central line of the second butt flat plate 33 of the external mold system 3, are first screw rods 331 and are connected with the double-T-shaped supporting feet 332, and the position of the second butt flat plate is a lower plate when the prefabricated part is horizontally poured.
The double-T-shaped supporting leg 332 of the external mold system 3 is connected with a threaded sleeve 3322 through a second screw 3321, the first screw 332 and the second screw 3321 are carved in an antisymmetric manner, and after the double-T-shaped supporting leg is installed on the lower side of the second butt-joint flat plate 33, the levelness of the prefabricated part can be adjusted through the rotation of the threaded sleeve 3322.
The form of the outer edge line of the clip-shaped end plate 4 is the same as the form of the section of the prefabricated thin shell structure, and comprises a square shape, a regular hexagon or a regular octagon and the like, the inner edge line is circular, the size of the inner edge line is larger than the diameter of a screw rod at the end part of the axial stretching rod 14, two third screw rods 41 are arranged at the position of a horizontal center line, and the inner edge line is fixed with a T-shaped clamping pin of an inner supporting plate 23 of the inner die system 2 through a double-ring plate 42.
The tightening outer ring 5 is composed of two half-edge outer rings (51, 52), namely a first half-edge outer ring 51 and a second half-edge outer ring 52, wherein the two half-edge outer rings (51, 52) are tightly connected through bolts, the tightening outer ring 5 can be tightly contacted with the outer die system 3 through the bolts, and the inner diameter of the tightening outer ring 5 is the same as the outer diameter and the shape of the outer die system 3.
The assembling and disassembling method of the polygonal prefabricated thin-shell three-dimensional cavity structure modular mold comprises the following steps of:
firstly, horizontally pouring, namely horizontally pouring, a polygonal prefabricated thin-shell three-dimensional cavity structural member, assembling the lower half part of an external mold system, screwing a screw rod into and penetrating through a first bolt hole of a first butt-joint flat plate, enabling a bolt to penetrate through the first butt-joint flat plate for the length of the prefabricated thin-shell three-dimensional cavity structural member, and accurately adjusting the thickness of the cavity structural member through threads;
secondly, assembling the internal mold disassembling and fixing device and the internal mold system, and placing the internal mold disassembling and fixing device and the internal mold system into the external mold system without the upper half part;
thirdly, assembling the upper half external mold system, adjusting the structural thickness of the cavity of the prefabricated part through a screw in the first bolt hole, fixing a tongue-and-groove flat plate of the internal mold system, and enabling the uppermost butt joint flat plate of the external mold system to be vacant, so that a cement-based material can be poured conveniently;
and fourthly, installing a square-shaped end plate and a tightening outer ring to form a closed prefabricated part cavity, fixing an axial stretching rod to the end part of the square-shaped end plate through a nut, adjusting the levelness of the whole mould through a threaded sleeve of the double-T supporting leg, completing mould assembly, and pouring a cement-based material.
Fifthly, after the prefabricated thin-wall three-dimensional cavity structure reaches the form removal strength, firstly removing a clip-shaped end plate and a peripheral tightening outer ring at the end part of the component, driving a movable connecting rod and a V-shaped stay bar through axial stretching, removing an inner stay plate, and then removing an inner mold corner connecting piece and a rabbet flat plate; and finally, removing the external mold system.
The specific process of assembling the polygonal prefabricated thin-shell cavity three-dimensional structure modular mold is as follows:
assembling the inner mold fixing and dismounting device 1, firstly, connecting one end of the female connecting rods 111 and Yang Liangan with the same end structure with the second lug plate 231 on the long side of the supporting plate 23 of the inner mold system 2, assembling the other ends of the female connecting rods 111 and Yang Liangan into a concentric circle, and then connecting the concentric circle with the first groove 121 of the combined module 12 through a bolt; then, the notched end of the movable connecting rod 13 is connected with the first ear plate 141 of the axial stretching rod 14 through a bolt, so that the connection between one unit in the inner mold fixing and dismounting device 1 and one inner mold inner support plate 23 of the inner mold system 2 is completed, and the V-shaped support 11, the combined module 12 and the movable connecting rod 13 are assembled according to the number of the inner support plates 23 of the inner mold system 2 required by the polygonal prefabricated thin-shell three-dimensional cavity structure.
And then assembling the inner mold corner connecting piece 21 and the tongue-and-groove flat plate 22 of the inner mold system 2 with the installed inner supporting plate 23, placing the inner mold corner connecting piece 21 at two ends of the installed inner supporting plate 23, placing the tongue-and-groove flat plate 22, and temporarily fixing the tongue-and-groove flat plate 22 at the lower part.
And (3) assembling the external mold system 3, installing the double-T-shaped supporting feet 332 on the first screw rod 331 at the lower side of the second butt-joint flat plate 33, horizontally placing the assembled second butt-joint flat plate 33, and adjusting the relative distance between the first screw rod 331 and the second screw rod 3321 by adjusting the threaded sleeves 3322 of the double-T-shaped supporting feet 332 to adjust the levelness of the second butt-joint flat plate 33 and ensure the manufacturing accuracy of the polygonal prefabricated thin-shell three-dimensional cavity structure modular mold. Secondly, installing outer mold corner connecting pieces 31 and a first butt flat plate 32 on two sides of a second butt flat plate 33, screwing bolts into first bolt holes 321 of the first butt flat plate 32, wherein the length of the first bolt holes 321 extending out of the inner side of the first butt flat plate 32 is the thickness of a polygonal prefabricated thin-shell three-dimensional cavity structure, so that the purpose of controlling the thickness of prefabricated parts is achieved, the lower half parts of outer mold systems 3 are assembled in sequence, and the assembled inner mold system 2 is placed into the outer mold system 3 for assembling the lower half part; and then, assembling the remaining outer mold corner connecting piece 31, the first butt flat plate 32 and the butt flat plate 34 of the outer mold system 3, and screwing a screw into the first bolt hole 321 of the first butt flat plate 32 to achieve the purpose of controlling the wall thickness of the upper side of the prefabricated thin-shell three-dimensional cavity member, and finally, enabling the uppermost plate of the outer mold system to be vacant to achieve the purpose of pouring a cement-based material.
Assembling the hollow end plate 4 at the end of the prefabricated three-dimensional cavity structure modular mold, aligning the back sides of the hollow end parts 4 at the two sides of the mold with the end of the internal mold system 2, allowing the axial stretching rod 14 of the internal mold fixing and dismounting device 1 to penetrate through the hollow end plate 4, adjusting the third screw rod 41 at the central line of the hollow end plate 4 and the T-shaped bayonet 232 at the end of the internal stay plate 23 of the internal mold system 2 to be at the same horizontal position, simultaneously sleeving the double ring plate 42 into the third screw rod 41 and the T-shaped bayonet 232, and tightly fixing the hollow end plate 4 at the end of the internal mold system 2 through nuts.
A gasket is arranged at the central position of the axial stretching rod 14 of the inner die fixing and dismounting device 1 which penetrates through the square end plate 4, and a nut is arranged to reach the position for limiting the axial stretching rod 14.
And finally, installing a tightening outer ring 5, respectively sleeving the first half-shaped outer ring 51 and the second half-shaped outer ring 52 into the outer die system 3, and tightening the first half-shaped outer ring 51 and the second half-shaped outer ring 52 through a fourth screw 53 to restrain the whole template system.
After the templates are installed, pouring cement-based materials, forming a polygonal prefabricated thin-shell three-dimensional cavity structure, and after the materials reach the template removal strength, beginning to remove the templates in the following sequence:
firstly, unscrewing nuts at the end parts of the tightening hoop outer ring 5, the clip-shaped end plate 4 and the inner die fixing and dismounting rod 14 of the fixing device 1, and dismounting the nuts;
secondly, removing the external mold system 3 from the top to the bottom, firstly removing a screw for controlling the thickness of the prefabricated thin shell, then sequentially removing a first butt flat plate 32, an external mold corner connecting piece 31, a butt flat plate 34 and finally a second butt flat plate 33 on the lowest side of the remaining prefabricated part;
and thirdly, removing the inner mold system 2, pulling the axial stretching rod 14 of the inner mold fixing and removing device 1 in a single direction to drive the inner supporting plate 23 to be separated from the inner surface of the prefabricated part, and then sequentially removing the inner mold corner connecting piece 21 and the rabbet flat plate 22.
Claims (4)
1. A polygonal prefabricated thin-shell cavity three-dimensional structure modular mold is characterized by comprising an inner mold fixing and dismounting device, an inner mold system, an outer mold system, a clip-shaped end plate and a fastening outer ring;
the internal mold fixing and dismounting device is used for fixing an internal mold system during the prefabrication of components, and actively dismounting the internal mold system during the dismounting of the template so as to realize the prefabrication of a thin-shell cavity structure; the internal mold fixing and dismounting device comprises a V-shaped stay bar, a combined module, a movable connecting rod and an axial stretching rod;
the outer and inner mould systems are used for prefabricating prefabricated parts of different section forms and geometrical dimensions, wherein:
the inner mold system comprises an inner mold corner connecting piece, a tongue-and-groove flat plate and an inner supporting plate;
the outer mold system comprises outer mold corner connectors and butt joint flat plates;
the form of the outer edge line of the square-shaped end plate is the same as the form of the section of the prefabricated thin shell structure, and the square-shaped end plate comprises a square, a regular hexagon or a regular octagon; the inner side line is circular, the size of the inner side line is larger than the diameter of the screw rod at the end part of the axial stretching rod, two third screw rods are arranged at the position of the horizontal center line and are fixed with the T-shaped bayonet lock of the inner supporting plate of the inner die system through a double-ring plate;
the tightening outer ring consists of two half-edge outer rings, namely a first half-edge outer ring and a second half-edge outer ring, the two half-edge outer rings are fixedly connected through a third screw rod, and the inner diameter of the tightening outer ring is the same as the outer diameter and the shape of the outer die system;
the V-shaped stay bar consists of a female connecting rod and Yang Liangan, the female connecting rod and the male connecting rod are identical in structure, one ends of the female connecting rod and the male connecting rod are connected with an inner stay plate of the internal mold system through bolts after forming a certain angle, and the other ends of the female connecting rod and the male connecting rod are combined to form a concentric circle structure and then are connected and fixed with the combined module;
two opposite surfaces of the combined module are respectively provided with two mutually vertical grooves, the side surfaces of the grooves are respectively provided with a through bolt hole, a hole of each bolt hole is internally provided with a screw thread which is respectively a first groove and a second groove, the first groove is positioned in the middle of the surface and used for connecting a V-shaped stay bar, the second groove is positioned above the middle part of the opposite surfaces and penetrates to the side surfaces, and a 90-degree angle is formed inside the second groove and used for connecting a movable connecting rod;
the movable connecting rod is a connecting rod with round holes at two ends, one end of the movable connecting rod is connected with the combined module through a bolt, and the other end of the movable connecting rod is connected with a first lug plate on the side surface of the axial stretching rod through a bolt;
the axial stretching rod is a hollow steel pipe with a screw rod at one end, the cross section of the axial stretching rod is triangular or quadrangular, the axial stretching rod is respectively suitable for the cross section of a prefabricated part of a regular hexagon, a regular quadrangle or a regular octagon, first lug plates are welded at the positions of 1/4 and 3/4 of the rod piece on each surface of the axial stretching rod and are used for connecting movable connecting rods, and the screw rod at the end part is used for fixing the axial stretching rod on a clip-shaped end plate;
the cross section of the internal mold corner connecting piece is in an anti-symmetric form, the end part of the internal mold corner connecting piece is a single-side notch, the internal mold corner connecting piece is matched with the tongue-and-groove flat plate and the internal supporting plate, the whole internal mold corner connecting piece is of a broken line type, the angle of two straight lines is 90 degrees, 120 degrees or 135 degrees, and the internal mold corner connecting piece is used for connecting and fixing each internal mold plate of a square, a regular hexagon or a regular octagon, namely the tongue-and-groove flat plate and the internal supporting plate to form an internal mold system;
the cross sections of the rabbet flat plate and the inner support plate are the same, two ends of the rabbet flat plate and the inner support plate are single-side notches, a second lug plate and a T-shaped clamping pin are arranged on the long edge of the inner support plate, the second lug plate is used for being connected with a V-shaped support rod of the inner mold dismounting and fixing device, and threads are carved at the end part of the T-shaped clamping pin and used for fixing the clip end plate.
2. The polygonal prefabricated thin-shell cavity three-dimensional structure modular mold as claimed in claim 1, wherein the external mold corner connectors have a cross section in a directly symmetrical form, a convex end, a broken line shape as a whole, and two straight line angles of 90 °, 120 ° or 135 ° for connecting and fixing each external mold plate of a square, a regular hexagon or a regular octagon, namely a butt flat plate, which comprises a first butt flat plate and a second butt flat plate, which have the same cross section form, and a concave end, which is matched with the external mold corner connectors; wherein:
the first butt flat plate is provided with first bolt holes at the positions of 1/4 and 3/4 of the central line, threads are engraved in the first butt flat plate, the positions of the first butt flat plate and the first butt flat plate correspond to the tongue-and-groove flat plate of the internal mold system, and the positions of the tongue-and-groove flat plate are fixed through bolts;
two groups of screw rods are arranged at the positions of 1/4 and 3/4 of the central line of the second butt-joint flat plate, are first screw rods and are connected with the double T-shaped supporting legs, and the position of the second butt-joint flat plate is a lower plate when the prefabricated part is horizontally poured.
3. The modular mold of claim 2, wherein the supporting feet of the double T shape are connected by a second screw and a threaded sleeve, and the first screw and the second screw are engraved with antisymmetric threads.
4. A method for assembling and disassembling a polygonal prefabricated thin-shell cavity three-dimensional structure modular mold according to any one of claims 1 to 3, characterized by comprising the steps of:
firstly, horizontally pouring, namely horizontally pouring, a lower half part of an external mold system is assembled by polygonal prefabricated thin-shell cavity three-dimensional structural members, a screw is screwed in and penetrates through a first bolt hole of a first butt-joint flat plate, a bolt penetrates through the first butt-joint flat plate for the length of the prefabricated thin-shell cavity three-dimensional structural thickness, and the cavity structural thickness is accurately adjusted through threads;
secondly, assembling the internal mold disassembling and fixing device and the internal mold system, and placing the internal mold disassembling and fixing device and the internal mold system into the external mold system without the upper half part;
thirdly, assembling the upper half external mold system, adjusting the structural thickness of the cavity of the prefabricated part through a screw in the first bolt hole, fixing a tongue-and-groove flat plate of the internal mold system, and enabling the uppermost butt joint flat plate of the external mold system to be vacant, so that a cement-based material can be poured conveniently;
fourthly, mounting a square end plate and a hooping outer ring to form a closed prefabricated part cavity, fixing an axial stretching rod at the end part of the square end plate through a nut, adjusting the levelness of the whole mould through a threaded sleeve of a double-T supporting leg to complete mould assembly, and pouring cement-based materials;
fifthly, after the prefabricated thin-wall three-dimensional cavity structure reaches the form removal strength, firstly removing the clip-shaped end plate and the peripheral tightening outer ring at the end part of the component, removing the outer mold system, driving the movable connecting rod and the V-shaped stay bar through axial stretching, removing the inner stay plate, and then removing the inner mold corner connecting piece and the rabbet flat plate.
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| CN114683395B (en) * | 2022-04-18 | 2023-10-03 | 兰州理工大学 | Modularized circular PC well chamber prefabricated formwork and construction assembling and dismantling method |
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| JP2000127135A (en) * | 1998-10-26 | 2000-05-09 | Haneda Hume Pipe Co Ltd | Assembled form for partly square and circuit culvert |
| KR200403876Y1 (en) * | 2005-09-13 | 2005-12-14 | 조용우 | Quadrangle type Manhole mold |
| FI20125032L (en) * | 2011-06-16 | 2012-12-17 | Eaglefinn Oy | Room element shape and procedure for its lifting |
| CN102350730A (en) * | 2011-09-30 | 2012-02-15 | 江苏江扬建材机械有限公司 | Novel assembled steel mould of concrete box culvert |
| CN205438835U (en) * | 2016-03-01 | 2016-08-10 | 中泰国际高新技术有限公司 | Assembled tongue -and -groove template down |
| CN205969436U (en) * | 2016-08-31 | 2017-02-22 | 山东天马新型建材有限公司 | Horizontal many storekeepers corridor mould |
| CN108556121A (en) * | 2017-12-26 | 2018-09-21 | 中冶天工集团有限公司 | The Modularized vertical steel die and its operating method of prefabricated pipe gallery |
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| CN110978233A (en) * | 2019-12-31 | 2020-04-10 | 中铁二十三局集团有限公司 | Internal mold system for box culvert prefabrication |
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