CN113580358A - A circulation production line for producing hollow floor of prestressing force - Google Patents
A circulation production line for producing hollow floor of prestressing force Download PDFInfo
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- CN113580358A CN113580358A CN202110976633.6A CN202110976633A CN113580358A CN 113580358 A CN113580358 A CN 113580358A CN 202110976633 A CN202110976633 A CN 202110976633A CN 113580358 A CN113580358 A CN 113580358A
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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
- B28B15/00—General arrangement or layout of plant ; Industrial outlines or plant installations
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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
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/08—Producing shaped prefabricated articles from the material by vibrating or jolting
- B28B1/087—Producing shaped prefabricated articles from the material by vibrating or jolting by means acting on the mould ; Fixation thereof to the mould
- B28B1/0873—Producing shaped prefabricated articles from the material by vibrating or jolting by means acting on the mould ; Fixation thereof to the mould the mould being placed on vibrating or jolting supports, e.g. moulding tables
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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
- B28B11/245—Curing concrete articles
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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
- B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
- B28B13/02—Feeding the unshaped material to moulds or apparatus for producing shaped articles
- B28B13/0215—Feeding the moulding material in measured quantities from a container or silo
- B28B13/023—Feeding the moulding material in measured quantities from a container or silo by using a feed box transferring the moulding material from a hopper to the moulding cavities
- B28B13/0235—Feeding the moulding material in measured quantities from a container or silo by using a feed box transferring the moulding material from a hopper to the moulding cavities the feed box being provided with agitating means, e.g. stirring vanes to avoid premature setting of the moulding material
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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
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
- B28B23/04—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members the elements being stressed
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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
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
- B28B23/04—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members the elements being stressed
- B28B23/043—Wire anchoring or tensioning means for the reinforcements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G35/00—Mechanical conveyors not otherwise provided for
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G37/00—Combinations of mechanical conveyors of the same kind, or of different kinds, of interest apart from their application in particular machines or use in particular manufacturing processes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
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- Manufacturing & Machinery (AREA)
- Structural Engineering (AREA)
- Metal Extraction Processes (AREA)
Abstract
The invention relates to a circulating production line for producing a prestressed hollow floor slab, and belongs to the technical field of prestressed hollow floor slabs. The application discloses circulation production line includes: the prestressed hollow floor slab comprises a prestressed die table, two running rails and more than two ferry vehicles, wherein the size of the prestressed die table is matched with that of the prestressed hollow floor slab; the running track comprises a plurality of driving wheels and a plurality of supporting wheels which are arranged along the ground; the ferry vehicle is positioned between the two running rails; the prestress die table is positioned above the driving wheel and the supporting wheel, and the driving wheel drives the prestress die table to move along the running track; the ferry vehicle bears the movement of the pre-stressed die table between the two running rails, so that the movement track of the pre-stressed die table is in a closed state. The circulation production line of this application can not only realize horizontal built-in fitting such as pre-buried transverse reinforcement, transverse connection spare, prestressing force steel strand overlap joint, lift by crane the ground tackle, can also realize adopting ordinary lifting device can hoist, and safety does not have the risk of falling.
Description
Technical Field
The invention relates to a circulating production line for producing a prestressed hollow floor slab, and belongs to the technical field of prestressed hollow floor slabs.
Background
Hollow floors are 40% lighter than solid floors and save more concrete needed in the production process. The hollow floor slab does not need to be provided with supports during construction on a construction site, and can immediately and completely bear load. For these reasons, hollow floor slabs have been widely used worldwide.
The prestressed hollow floor slab is a hollow floor slab with prestressed reinforcements and prestress; the prestressed reinforcement is stretched before pouring, and the prestressed reinforcement is shrunk in the solidification process to be prestressed.
The main production mode of the prestressed hollow floor slab at present is a continuous casting process production mode that moulds are arranged on a long-line mould table, long prestressed reinforcements or steel strands are led in, then pouring or slip-form extrusion forming is carried out, cutting and sizing are carried out according to the required length after the maintenance is carried out to a certain strength, and members are hoisted to leave the long-line mould table by using a gantry crane. The long line die table is generally 80-120 m; the transverse steel bars, transverse connecting pieces, transverse embedded pieces, hoisting anchors, prestressed steel strand lap joints or concrete holes required in the prestressed hollow floor slab cannot be realized at all; prestressed hollow floor slabs, the width is also very limited by the manner of production. In addition, the long linear mold table is adopted to produce the prestressed hollow floor slab, and the hoisting anchorage device is difficult to implant, so that only special hoisting equipment (grab bucket) can be used in the hoisting process, the falling risk exists, and the considerable accident potential is caused.
Disclosure of Invention
In order to solve the technical problem that the existing production line of the prestressed hollow floor slab cannot pre-embed a transverse embedded part, the application provides a circulating production line for producing the prestressed hollow floor slab. The circulation production line of this application can not only realize horizontal built-in fitting such as pre-buried transverse reinforcement, transverse connection spare, prestressing force steel strand overlap joint, lift by crane the ground tackle, can also realize adopting ordinary hoisting equipment (for example the plate sling) can hoist, safe risk that does not have falls. In addition, the intensity that adopts the hollow floor of prestressing force of the production of the circulation production line of this application than adopting long line mould platform to produce hollow floor of prestressing force is higher.
Technical scheme
A recycling line for producing pre-stressed hollow floor slabs, comprising:
the prestressed hollow floor slab comprises a prestressed die table, two running rails and more than two ferry vehicles, wherein the size of the prestressed die table is matched with that of the prestressed hollow floor slab;
the running track comprises a plurality of driving wheels and a plurality of supporting wheels which are arranged along the ground;
the ferry vehicle is positioned between the two running rails;
the prestress die table is positioned above the driving wheel and the supporting wheel, and the driving wheel drives the prestress die table to move along the running track;
the ferry vehicle bears the movement of the pre-stressed die table between the two running rails, so that the movement track of the pre-stressed die table is in a closed state.
In the prior art, a long-line die table is adopted to produce a prestressed hollow floor slab, in the production process, a long-line template is fixed, and forming equipment runs along the long-line template to complete a forming process, so that a transverse embedded part cannot be implanted into the long-line die table. And this application adopts above-mentioned technical scheme, the size phase-match of the hollow floor plate size of prestressing force die block and the production of wanting is less than the long line die block among the prior art far away. The pre-stressed formworks can run along a pre-designed running track, and the running of the pre-stressed formworks between the running tracks is realized through the reciprocating motion of the ferry vehicle, so that the motion trail of the pre-stressed formworks is in a closed state, and the circulating circulation of the pre-stressed formworks in a production line is realized. In the technical scheme, the pre-stressed die table is movable, and can be used for implanting transverse steel bars, transverse connecting pieces, embedded pieces, lifting anchors, pre-stressed steel strand lap joints and the like; and a hole can be formed at the local part of the prestressed hollow floor slab for production, and the production molding can be supported. By adopting the technical scheme, the prestressed hollow floor slabs are produced in the circulating system, each prestressed hollow floor slab can be produced according to the geometric shape and the size of a required member without loss, the production is accurate, and the required geometric shape and the size of a part are not required to be manufactured by cutting; the high-efficiency and lossless production of the prestressed hollow floor slabs with various sizes and shapes is realized. And the geometry, size and number can be adjusted very flexibly, which is not possible in continuous casting with long line mould tables. In addition, unexpected, for the hollow floor of prestressing force that adopts long line mould platform production, the hollow floor of prestressing force that adopts this application above-mentioned technical scheme production's intensity has obviously improved. The possible reasons are: the prestressed reinforcement in each prestressed hollow floor slab can be stretched, the distance between two stress points of the prestressed reinforcement is greatly shortened, the prestress of each prestressed reinforcement is more uniform, the deformation degree of the prestressed hollow floor slab is more consistent, and the supporting strength of the prestressed hollow floor slab is improved.
Preferably, the pre-stressed formwork comprises a formwork panel, a forming die and an anchor frame; the forming die is arranged on the die table panel; the anchor frame is arranged on the die table panel and positioned at two ends of the forming die. In addition, the two ends of each prestressed formwork are provided with anchor frames, so that additional lifting lugs can be used, and the prestressed hollow slab can be easily lifted; and hoisting the prestressed formwork by adopting common hoisting equipment. Compared with the extrusion-molded prestressed hollow slab, the hoisting time of a crane and the laying time of a construction site are shortened.
Preferably, the forming die is internally provided with prestressed reinforcements and transverse embedded parts; and two ends of the prestressed reinforcement are positioned on the anchor frame. And one end of the die table fixes each prestressed steel bar on an anchor frame of the die table by using an anchor, the other end of the die table is sleeved with the anchor and penetrates into a prestressed tensioning machine, the tensioning machine holds the steel bars, and the steel bars are stretched according to design requirements so as to apply prestress.
Preferably, the transverse embedded part is one or more than two of a transverse steel bar, a transverse connecting piece and a prestressed steel strand lapping piece. The transverse steel bars and the prestressed steel bars form a steel bar net rack; and (3) carrying out friction locking anti-seismic assembly on a construction site by using the steel bar net rack and the connecting steel bars. The tensile force absorption of the four sides of the formed reinforcing steel bar net rack can obviously improve the bearing capacity. On the long side, the suspension of the tension wire is easily achieved, while on the short side, additional reinforcement bars can be raised to achieve a friction-locking connection of the respective members.
The two running tracks are parallel to each other.
Preferably, the ferry vehicle is a lifting ferry vehicle. The ferry vehicle lifts the lifting platform to enable the prestressed formwork to be separated from the supporting wheels and the driving wheels, and the ferry vehicle lowers the lifting platform to enable the prestressed formwork to be placed on the supporting wheels and the driving wheels; the automatic carrying of the pre-stressed die table is realized through the lifting function of the lifting ferry vehicle.
Above-mentioned circulation production line for producing hollow floor of prestressing force, it is preferred, still include: the pre-stressed tensioning machine, the distributing machine, the hole cavity forming machine, the curing kiln, the stacking machine and the plate hanging machine are arranged around the running track and distributed in sequence. The prestressed formwork is operated through the device, and the high-efficiency and lossless production of the prestressed hollow floor slab with similar size and shape is realized. The cavity forming machine may be operated singly or in multiples. The position of the arrangement can also be adjusted according to the characteristics of the concrete. And placing the core tube at a pouring station, inserting the core tube before pouring, and pulling out the core tube after pouring. And a pipe drawing station can be arranged before the pipe enters the curing kiln subsequently, and a set of hole cavity forming machine is also arranged at the station. After the core pipe is inserted into the pouring station, the core pipe is separated from the hole cavity forming machine, and after the die table reaches the pipe drawing station, the core pipe is drawn out.
The circulating production line for producing the prestressed hollow floor slab further comprises a vibrating table; the vibration table is arranged between the prestress tensioning machine and the hole cavity forming machine. After the distribution is finished, the vibration table vibrates the pre-stressed formwork to compact the concrete in the forming die, so that air bubbles in the pre-stressed hollow floor slab are reduced, and the strength of the pre-stressed hollow floor slab is improved.
The circulating production line for producing the prestressed hollow floor slab further comprises a stirring station, and the stirring station is arranged between the prestress tensioning machine and the hole cavity forming machine. The mixing station puts the mixed concrete into the distributing machine.
The circulating production line for producing the prestressed hollow floor slab further comprises a sweeper, wherein the sweeper is arranged between the plate lifting machine and the prestress tensioning machine. The sweeper is used for sweeping residual waste and dust on the die table.
Advantageous effects
The mould platform circulation mode is used for producing the prestressed hollow floor slabs with various geometric shapes and built-in longitudinal and transverse reinforcing steel bars, embedded parts and other parts. The prestressed hollow floor slab is produced in a prestressed die table of a circulating system. Each prestressed hollow floor slab can be produced according to the geometric shape and the size of the required member without loss, is accurately produced, and is not required to be cut into the geometric shape and the size of the required part; the labor cost of sawing and the work and cost for treating waste materials and noise in the sawing process are saved. And the geometry, size and number of the produced prestressed hollow floor slabs can be adjusted very flexibly, which is impossible in continuous casting.
The prestressed reinforcement and the reinforcing steel bar, the transverse connecting piece, the joint assembly, the embedded part and the opening positioning die can be directly installed in the prestressed formwork, and also can be installed with electric, water and ventilation shafts or special built-in assemblies.
And (3) carrying out friction locking anti-seismic assembly on the prestressed hollow floor slab by using the steel bar net rack and the connecting steel bars on the construction site. The four-side tensile force absorption can obviously improve the bearing capacity. On the long side, the suspension of the tension wire is easily achieved, while on the short side, additional reinforcement bars can be raised to achieve a friction-locking connection of the individual sheet members. Compared with the extrusion-molded prestressed hollow slab, the hoisting time of a crane and the laying time of a construction site are shortened. Additional lifting lugs can also be used, so that the prestressed hollow slab can be easily lifted.
The components are no longer manufactured using extrusion or slip molding processes, but rather using a die table cycle approach. The centralized automatic curing is realized by using the curing kiln, the production efficiency is high, and the curing quality is high. The work of each station is fixed and stable, and the experience accumulation and the production management of personnel are facilitated.
Drawings
FIG. 1 is a diagram of a station layout of a recycling line disclosed in an embodiment of the present application;
FIG. 2 is a view showing the layout of the main equipment of the recycling line disclosed in the application example;
FIG. 3 is a schematic structural diagram of a pre-stressing formwork of the circulation production line disclosed in the embodiment of the application;
FIG. 4 is a schematic structural diagram of a running track of the circulation production line disclosed in the application example;
in the figure, 1 a mixing station, 2 a pre-stress tensioning machine, 3 a material distributor, 4 a hole cavity forming machine, 5 driving wheels, 6 supporting wheels, 7 a vibration table, 8 a ferry vehicle, 9 a pre-stress formwork, 10 a curing kiln, 11 a stacker crane, 12 a plate hoist, 13 a sweeper, 14 a formwork frame, 15 a formwork panel, 16 a pre-stress anchor frame, 17 a concrete forming mould, 18 pre-stress steel bars and 19 a steel bar net rack;
the device comprises a G1 tensioning station, a G2 pouring station, a G3 driving and leveling station, a G4 face collecting and leveling station, a G5 form removing station, a G6 plate lifting station, a G7 cleaning station, a G8 oiling station, a G9 side form mounting station, a G10 steel bar embedded part mounting station, a G11 surface processing area and a G12 static stopping station.
Detailed Description
To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application are described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments of the present application; it should be understood that the present application is not limited by the embodiments described herein.
The embodiment of the present application discloses a circulation production line for producing prestressed hollow floor slab, please refer to fig. 1, 2 and 4, including: the prestressed hollow floor slab comprises a prestressed die table 9 with the size matched with that of the prestressed hollow floor slab, two running rails and more than two ferry vehicles 8; the running track comprises a plurality of driving wheels 5 and a plurality of supporting wheels 6 which are arranged along the ground; the ferry vehicle 8 is positioned between the two running rails; the prestress formwork 9 is positioned above the driving wheel 5 and the supporting wheel 6, and the driving wheel 5 drives the prestress formwork 9 to move along the running track; the ferry vehicle 8 bears the movement of the pre-stressed die table 9 between the two running rails, so that the movement track of the pre-stressed die table 9 is in a closed state. The pre-stressed formwork 9 is matched with the pre-stressed hollow floor in size; in particular, it may refer to a dimension slightly larger than a prestressed hollow floor slab for forming the prestressed hollow floor slab. The two running rails comprise a plurality of driving wheels 5 and a plurality of supporting wheels 6 which are arranged along the ground; the driving wheel 5 and the supporting wheel 6 are arranged along two straight lines according to a certain arrangement rule, and the distance between the two straight lines is determined according to the size of the pre-stressed die table 9. For example, one supporting wheel 6 is arranged between every two driving wheels 5; the distance between the supporting wheels 6 and the supporting wheels 6, the distance between the driving wheels 5 and the distance between the supporting wheels 6 and the driving wheels 5 are determined according to actual production conditions. The drive wheels 5 and the support wheels 6, which are arranged in two straight lines, form a running track. The mounting arrangement of the driving wheels 5 and the supporting wheels 6 forms another running track according to further production needs. The distribution of the two running tracks is carried out according to the actual production requirement; specifically, the two running rails may be parallel, the end point of one running rail is flush with the end point of the other running rail, and the distance between the two running rails can accommodate at least one pre-stressing formwork 9. The driving wheel 5 is used to drive the components placed above it, in particular in the present embodiment the pre-stressing formwork 9; the support wheels 6 are intended to support the component placed above them, in particular the prestressing formwork 9 in this embodiment. The ferry vehicle 8 is positioned between the two running rails; the ferry vehicle 8 makes a back-and-forth movement between the two running rails, and establishes a connection between the two running rails, and the two running rails and the ferry vehicle 8 which moves back and forth form a closed running area. The prestress formwork 9 is positioned above the driving wheel 5 and the supporting wheel 6, and the driving wheel 5 drives the prestress formwork 9 to move along the running track; specifically, the driving wheel 5 is connected with a controller, the controller controls the rotation of the driving wheel 5 through signal transmission, and the driving wheel 5 rotates to enable the prestress formwork 9 above the driving wheel 5 to move forwards along the tangential direction of the rotation direction of the driving wheel 5. The ferry vehicle 8 bears the movement of the pre-stressed die table 9 between the two running rails, so that the movement track of the pre-stressed die table 9 is in a closed state. When the pre-stressed die table 9 moves to a certain specific position of the operation track under the driving of the driving wheel 5, the ferry vehicle 8 supports the pre-stressed die table 9 to start moving, and the pre-stressed die table 9 is transferred. For example, when the pre-stressed formwork 9 runs from one end of the running track a to the other end, the ferry vehicle 8 runs to the position below the pre-stressed formwork 9 and supports the pre-stressed formwork 9 to start to move; when the ferry vehicle 8 runs to the running track B, the pre-stressed formwork 9 is placed above one end of the running track B, so that the pre-stressed formwork 9 is transferred from the running track A to the running track B; similarly, when the pre-stressed die platform 9 moves to the other end along the operation track B, the ferry vehicle 8 transfers the pre-stressed die platform 9 from the operation track B to the operation track A, so that the movement track of the pre-stressed die platform 9 is in a closed state.
As an embodiment, as shown in fig. 3, the prestressed formwork 9 includes a formwork panel 15, a forming die 17 and an anchor frame; the forming die 17 is arranged on the die table panel 15; the anchor holders are provided on the die table 15 at both ends of the molding die 17. Specifically, the platen 15 may be a flat plate structure, for example, a rectangular flat plate. The forming mold 17 is a mold for forming a prestressed hollow floor slab, and is generally a frame consisting of a frame and conforming to the external shape of the prestressed hollow floor slab to be produced. The anchor frame is a structure for mounting an anchor. The forming die 17 is located above the die table 15, substantially in the middle; anchor blocks, also 2 in number, are located above the platen 15, on either side of the forming die 17, generally at the ends of the platen 15. There is a certain distance between the forming die 17 and the anchorage.
As an embodiment, as shown in fig. 3, a transverse embedded part and a prestressed reinforcement 18 are installed in the forming die 17; the two ends of the prestressed reinforcement 18 are located at the anchor frame. Mounting prestressed reinforcements 18 according to a prestressed hollow floor slab to be produced, wherein the length direction of the prestressed reinforcements 18 is taken as the longitudinal direction, and the direction vertical to the length direction of the prestressed reinforcements 18 is taken as the transverse direction; and installing transverse embedded parts according to production requirements in the frame of the forming die 17. One end of the die platform fixes each prestressed reinforcement 18 on an anchor frame of the die platform by using an anchor, the other end of the die platform is sleeved with the anchor and penetrates into the prestressed tensioning machine 2, the tensioning machine grips the reinforcement, and the reinforcement is stretched according to the design requirement so as to apply prestress. The prestressed reinforcement 18 in each prestressed hollow floor slab can be stretched, the distance between two stress points of the prestressed reinforcement 18 is greatly shortened, the prestress of each prestressed reinforcement 18 is more uniform, the deformation degree of the prestressed hollow floor slab is more consistent, and the supporting strength of the prestressed hollow floor slab is improved.
Specifically, the transverse embedded part is one or more than two of a transverse steel bar, a transverse connecting piece and a prestressed steel strand lapping part. The transverse steel bars and the prestressed steel bars 18 form a steel bar net rack 20; and (3) performing friction locking anti-seismic assembly on a construction site by using the steel bar net rack 20 and the connecting steel bars. The tensile force absorption of four sides of the reinforcing steel bar net rack can obviously improve the bearing capacity. On the long side, the suspension of the tension wire is easily achieved, while on the short side, additional reinforcement bars can be raised to achieve a friction-locking connection of the respective members.
As an embodiment, as shown in fig. 1-2, the two running rails are parallel.
As an embodiment, as shown in fig. 2, the ferry vehicle 8 is a lifting ferry vehicle 8. The number of the ferry vehicles 8 is determined according to the actual production condition; there may be four, two of which are located at one end of the running track and two of which are located at the other end of the running track. The lifting ferry vehicle 8 is provided with a lifting platform capable of lifting and descending. When the pre-stressed die table 9 needs to be separated from the running track, the ferry vehicle 8 runs to the position below the pre-stressed die table 9, and the lifting table is lifted, so that the pre-stressed die table 9 is lifted to be separated from the supporting wheels 6 and the driving wheels 5; when the pre-stressed die table 9 needs to enter the running track, the ferry vehicle 8 runs into the running track needing to enter, and the lifting platform descends so that the pre-stressed die table 9 is placed on the supporting wheels 6 and the driving wheels 5; the automatic carrying of the pre-stressed die table 9 is realized through the lifting function of the lifting ferry vehicle 8.
As an embodiment, as shown in fig. 2, the method further includes: the device comprises a prestress tensioning machine 2, a distributing machine 3, a hole cavity forming machine 4, a curing kiln 10, a stacker crane 11 and a plate hanging machine 12 which are arranged around a running track. The prestress tensioning machine 2, the distributing machine 3, the hole cavity forming machine 4, the curing kiln 10, the stacking machine 11 and the plate hanging machine 12 are arranged along the running track and are sequentially arranged according to the production process of the prestress hollow floor slab and the running direction of the stress die table. Specifically, according to the running direction of the prestress die block 9, the distributing machine 3, the hole cavity forming machine 4, the curing kiln 10, the stacker crane 11 and the plate hanger 12 are sequentially arranged behind the prestress tensioning machine 2, wherein the prestress tensioning machine 2 is arranged behind the plate hanger 12.
As an embodiment, as shown in fig. 2, further comprises a vibration table 7; the vibrating table is arranged between the pre-stress tensioning machine 2 and the cavity forming machine 4. In particular, the oscillating table is arranged in the vicinity of the distributor 3, below the pre-stressing die 9, to oscillate the pre-stressing die 9.
As an embodiment, as shown in fig. 2, a mixing station 1 is also included, said mixing station 1 being arranged between the pre-stressing tensioner 2 and the cavity-forming machine 4. Specifically, the mixing station 1 is located near the distributing machine 3, and is used for mixing to form concrete and putting the mixed concrete into the distributing machine 3.
As an embodiment, as shown in fig. 2, a sweeper 13 is also included, said sweeper 13 being arranged between the panel crane 12 and the prestressing tensioner 2. Specifically, the cleaning machine 13 is disposed near the hoist 12, and cleans the prestressing die table 9 immediately after the hoist 12 lifts the forming die 17 away.
The above-mentioned circular production line for producing prestressed hollow floor slabs according to any one of the embodiments can divide different stations on the operation tracks a and B according to specific production requirements, so as to perform corresponding operations on the prestressed formwork 9 at the stations. For example, a cleaning station G7, an oiling station G8, a side die mounting station G9, a reinforcing steel bar embedded part mounting station G10 and a tensioning station G1 are sequentially marked on the running track A from right to left; a mould stripping station G5 and a plate lifting station G6 are sequentially marked from left to right on the running track B; a surface treatment area G11 is divided on the left side of the left end of the running track B; dividing a leveling station G13, a noodle-collecting and leveling station G4 and a standing station G12 from left to right in the surface treatment area G11 in sequence; a casting station G2 is defined between the surface treatment area G11 and the tensioning station G1. Different numbers of static stop stations G12 can be inserted and divided among the stations according to the field and the production speed. The driving wheel 5 drives the prestressed formwork 9 to circularly circulate in each station and the matched equipment. The circulation process of the circulation production line disclosed in any one of the above embodiments is described with the cleaning station G7 as the starting point of the circulation production:
the cleaning station G7 is equipped with a cleaning machine 13 for cleaning residual scraps and dust on the prestressing die table 9. And (4) coating the release agent on the prestress die block 9 by equipment or manually after the cleaned prestress die block 9 reaches an oil coating station G8. The processed prestressed formwork 9 sequentially reaches a side formwork mounting station G9 and a steel bar embedded part mounting station G10, and articles such as a forming die 17, prestressed steel bars 18, transverse steel bars, transverse connecting pieces, prestressed steel strand lapping pieces and the like are mounted on the prestressed formwork 9. And continuously flowing to a tensioning station G1, fixing each prestressed reinforcement 18 on an anchor frame 16 of the prestressed formwork 9 by using an anchor at one end of the prestressed formwork 9, sleeving the anchor at the other end of the prestressed formwork and penetrating into the prestressed tensioning machine 2, holding the reinforcement by the tensioning machine 2, and stretching the prestressed reinforcement 18 according to the design requirement to apply prestress. So far the preamble preparation is completed. The ferry vehicle 8 acts to transfer the pre-stressed die table 9 which is prepared in the prior art to a pouring station G2. The cavity forming machine 4 is started and the core tube is inserted into the forming die 17 of the pre-stressed die table 9. The hole cavity forming machine 4 can arrange 1 or symmetrically arrange one on each of two sides according to the required number of the hole cavities to cross and penetrate to form more hole cavities. The mixing plant 1 is used for mixing various raw materials according to the design to prepare the required concrete. The mixing station 1 puts the mixed concrete into the distributing machine 3. The distributor 3 goes to the pouring station G2 to pour concrete into the forming die 17 which has penetrated the core tube. A vibrating table 7 is arranged below the pouring station G2, and in the pouring process, the vibrating table 7 is started to tap the concrete in the forming die 17. After the pouring is completed, the core tube is pulled out by the hole cavity forming machine 4. The ferry vehicle 8 moves forward continuously to convey the prestressed die table 9 to a surface treatment area G11, stations for treating the upper surface such as a static stop station G12, a driving and leveling station G3, a surface flattening station G4 and the like can be arranged at the position, and the upper surface is treated according to the requirement of the floor surface. And (3) operating the processed prestressed formwork 9 to a stacker crane 11, and conveying the prestressed formwork 9 to each bin of the curing kiln 10 by the stacker crane 11. A heating and humidifying device and a temperature and humidity detection system are arranged in the curing kiln 10. After a certain period of curing, the poured concrete reaches a set strength, and the pre-stressed formwork 9 is taken out of the bin by the stacker crane 11. The prestressed formwork 9 moves forward to reach a formwork removal station G5, and articles such as the anchor frame 16 and the forming die 17 are removed. Reaching the slab lifting station G6, the slab lifting machine 12 lifts the prestressed hollow slab off the prestressed formwork 9 and places it on a temporary storage rack or a transfer cart. The prestressed formwork 9 after the formwork stripping is completed is flowed to reach a cleaning station G7, and the whole circular production process is completed. One or more stations in the whole circulation process can be arranged according to the difference of the productivity so as to improve the circulation beat and increase the productivity.
Claims (10)
1. A recycling line for producing pre-stressed hollow floor slabs, comprising:
the prestressed hollow floor slab comprises a prestressed die table, two running rails and more than two ferry vehicles, wherein the size of the prestressed die table is matched with that of the prestressed hollow floor slab;
the running track comprises a plurality of driving wheels and a plurality of supporting wheels which are arranged along the ground;
the ferry vehicle is positioned between the two running rails;
the prestress die table is positioned above the driving wheel and the supporting wheel, and the driving wheel drives the prestress die table to move along the running track;
the ferry vehicle bears the movement of the pre-stressed die table between the two running rails, so that the movement track of the pre-stressed die table is in a closed state.
2. The recycling line for producing pre-stressed hollow floor slabs according to claim 1, wherein the pre-stressed formwork comprises a formwork panel, a forming die and an anchor frame; the forming die is arranged on the die table panel; the anchor frame is arranged on the die table panel and positioned at two ends of the forming die.
3. The recycling production line for producing the prestressed hollow floor slabs according to claim 1 or 2, wherein prestressed reinforcements and transverse embedded parts are installed in the forming mold; and two ends of the prestressed reinforcement are positioned on the anchor frame.
4. The recycling production line for producing prestressed hollow floor slabs according to claim 3, wherein said transverse embedded parts are one or more than two of transverse steel bars, transverse connectors and prestressed strand lap joints.
5. A recycling line for pre-stressed hollow floor slabs according to claim 1, wherein said two running rails are parallel.
6. The recycling line for producing pre-stressed hollow floor slabs according to claim 1, wherein said ferry vehicle is a lifting ferry vehicle.
7. A recycling line for producing pre-stressed hollow floor slabs according to claim 1, further comprising: the pre-stressed tensioning machine, the distributing machine, the hole cavity forming machine, the curing kiln, the stacking machine and the plate hanging machine are arranged around the running track and distributed in sequence.
8. A recycling line for pre-stressed hollow floor slabs according to claim 5, 6 or 7, further comprising a vibrating table; the vibration table is arranged between the prestress tensioning machine and the hole cavity forming machine.
9. The recycling line for producing prestressed hollow floor slabs according to claim 8, further comprising a mixing station disposed between the prestress tensioner and the cavity forming machine.
10. The recycling line for producing prestressed hollow floor slabs according to claim 9, further comprising a sweeper disposed between the slab crane and the prestress tensioner.
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Application publication date: 20211102 |