CN117088651A - Cement fiber cover plate production formula and process - Google Patents
Cement fiber cover plate production formula and process Download PDFInfo
- Publication number
- CN117088651A CN117088651A CN202311339785.0A CN202311339785A CN117088651A CN 117088651 A CN117088651 A CN 117088651A CN 202311339785 A CN202311339785 A CN 202311339785A CN 117088651 A CN117088651 A CN 117088651A
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- Prior art keywords
- cement
- cover plate
- cement fiber
- fiber cover
- plate
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- 239000004568 cement Substances 0.000 title claims abstract description 135
- 239000000835 fiber Substances 0.000 title claims abstract description 131
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000008569 process Effects 0.000 title claims description 17
- 239000002002 slurry Substances 0.000 claims abstract description 26
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229920002748 Basalt fiber Polymers 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000006004 Quartz sand Substances 0.000 claims abstract description 11
- 239000004743 Polypropylene Substances 0.000 claims abstract description 7
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 7
- -1 polypropylene Polymers 0.000 claims abstract description 7
- 229920001155 polypropylene Polymers 0.000 claims abstract description 7
- 239000000843 powder Substances 0.000 claims abstract description 7
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims abstract description 5
- 238000007873 sieving Methods 0.000 claims abstract description 4
- 230000007246 mechanism Effects 0.000 claims description 16
- 238000007789 sealing Methods 0.000 claims description 13
- 238000003756 stirring Methods 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000009472 formulation Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 description 12
- 238000001514 detection method Methods 0.000 description 10
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 238000000465 moulding Methods 0.000 description 5
- 238000007906 compression Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000009863 impact test Methods 0.000 description 4
- 239000011150 reinforced concrete Substances 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000007380 fibre production Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
-
- 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
-
- 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
- B28B1/52—Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement
- B28B1/525—Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement containing organic fibres, e.g. wood fibres
-
- 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
-
- 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
- B28B13/04—Discharging the shaped articles
- B28B13/06—Removing the shaped articles from moulds
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/38—Fibrous materials; Whiskers
- C04B14/46—Rock wool ; Ceramic or silicate fibres
- C04B14/4643—Silicates other than zircon
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Abstract
The invention provides a cement fiber cover plate production formula and a cement fiber cover plate production process, and belongs to the technical field of cement prefabricated parts. The cement fiber cover plate production formula comprises the following raw materials in parts by weight: 8 parts of cement, 1.76 parts of silica powder, 2.4 parts of water, 0.24 part of polypropylene fiber, 0.2 part of water reducer, 7.04 parts of quartz sand, 0.7 part of basalt fiber net and 0.8 part of basalt fiber rib. The production process comprises the following steps: t1: sieving quartz sand, and selecting a fine and uniform part; t2: and uniformly binding basalt fiber ribs on a basalt fiber net at equal intervals to form a fiber framework, and then placing the framework in a die of forming equipment in advance. The cement fiber cover plate production formula provided by the invention has the advantages of cost saving, smaller volume and mass of the manufactured cement fiber cover plate and light installation; the production process provided by the method has the advantages of automatically realizing self-leveling of the slurry, automatically demolding and saving manpower.
Description
Technical Field
The invention relates to the technical field of cement prefabricated parts, in particular to a cement fiber cover plate production formula and a cement fiber cover plate production process.
Background
The cement prefabricated member is made of cement and aggregate and can be applied to prefabricated members such as pipes, plates and columns in constructional engineering, the reinforced concrete cover plate is one of common prefabricated members in a construction factory, a cable trench and a side trench can be covered by the reinforced concrete cover plate, protection of equipment in the trench is achieved, meanwhile, vehicles and pedestrians can be prevented from falling into the trench, after the reinforced concrete cover plate is opened, objects in the trench can be overhauled, and at present, conventional cable trench cover plates and side trench cover plates of the expressway are made of reinforced concrete.
The research shows that the finished product of the existing highway cable trench cover plate has the weight of about 55kg, the whole volume is large, and at least two persons are required to finish the process in the actual installation process, so that the efficiency is low, and the production formula and the process for the cement fiber cover plate are necessary to provide to solve the technical problems.
Disclosure of Invention
The invention solves the technical problem of providing a cement fiber cover plate production formula and a cement fiber cover plate production process which can improve the terminal visual effect of a data relation diagram and facilitate the comprehensive comparison of related personnel on data.
In order to solve the technical problems, the cement fiber cover plate production formula provided by the invention comprises the following raw materials in parts by weight: 8 parts of cement, 1.76 parts of silica powder, 2.4 parts of water, 0.24 part of polypropylene fiber, 0.2 part of water reducer, 7.04 parts of quartz sand, 0.7 part of basalt fiber net and 0.8 part of basalt fiber rib.
In order to solve the technical problems, the invention also provides a cement fiber cover plate production process, which comprises the following steps:
t1: sieving quartz sand, and selecting a fine and uniform part;
t2: uniformly binding basalt fiber ribs on a basalt fiber net at equal intervals to form a fiber skeleton, and then pre-placing the skeleton in a die of forming equipment;
the molding equipment comprises a bottom plate, two mounting seats are fixedly arranged at the top of the bottom plate, two supporting slide rods are fixedly arranged on the outer wall of one side, which is mutually close to the mounting seats, of the bottom plate, a plurality of molds are sleeved on the supporting slide rods in a sliding manner, a mold groove is formed in the top of each mold, four round grooves are formed in the inner wall of the bottom of each mold groove, supporting blocks are arranged in the round grooves, sliding holes are formed in the inner wall of the bottom of each round groove, push rods are fixedly arranged in the sliding holes in a sliding manner, the top ends of the push rods are fixedly connected with the corresponding supporting blocks, the bottom ends of the four push rods are fixedly provided with connecting plates, a first spring is sleeved on each push rod, the top ends of the first spring are fixedly connected with the molds, the bottom ends of the first spring are fixedly connected with the connecting plates, the bottom ends of the four connecting plates are fixedly provided with connecting arms, the same door-shaped piece is fixedly arranged at the bottom ends of each connecting arm, two side inner walls of each door-shaped piece are respectively provided with a sliding hole, two guide screws are fixedly connected with one side, two guide screws are fixedly arranged on the same side, two guide rails are fixedly connected with one side of the guide rails, two guide rails are fixedly arranged on the two guide rails, one side of the guide rails are fixedly connected with one side, and fixedly arranged on the guide rails, and fixedly move one guide rails, and fixedly extend through the two guide rails, and fixedly arranged on the guide rails, and fixedly move one guide rails, and are fixedly connected with one guide rails, and are fixedly and connected with one end, a long waist hole is formed in the transverse bar, a second motor is fixedly mounted on the outer wall of one side of the corresponding mounting seat, a rotating arm is fixedly mounted on an output shaft of the second motor, a fixed rod positioned in the long waist hole is fixedly mounted on the top of the rotating arm, a rotary drum is sleeved on the fixed rod in a rotating manner, and the rotary drum is movably connected with the inner walls of the two sides of the long waist hole;
t3: uniformly stirring water, cement, silica powder, polypropylene fiber, a water reducing agent and quartz sand to form cement fiber slurry, and then pouring the cement fiber slurry into each mold;
t4: vibrating the cement fiber slurry in each mold through forming equipment to enable the surface of the cement fiber slurry to be quickly self-leveling;
t5: placing the cement fiber slurry for 12-16 h to solidify the cement fiber slurry;
t6: firstly, carrying out primary steam curing on the solidified cement fiber cover plate, wherein the primary curing time is one day;
t7: and demolding the cement fiber cover plate subjected to primary steam curing, and performing secondary steam curing on the cement fiber cover plate after demolding, wherein the secondary curing time is four days, and obtaining the finished cement fiber cover plate after finishing secondary curing.
Preferably, in T3, the stirring time is 120s.
Preferably, a sealing ring is fixedly arranged on the inner wall of the sliding hole, and the push rod penetrates through the sealing ring and is in sliding sealing connection with the inner ring of the sealing ring.
Preferably, the bottom of a plurality of mould is equal fixed mounting has the fixed plate, run through and slidable mounting have the backstop piece on the fixed plate, a plurality of the below of mould all is provided with the fixed beam, fixed beam fixed cover is established two on the linking arm that corresponds, the backstop piece is close to the inclined slide face has been seted up to the one end of fixed beam, the backstop piece is kept away from the one end fixed mounting of fixed beam has the connecting plate, run through and slidable mounting have round slide bar on the backstop piece, round slide bar is kept away from the one end of fixed beam with connecting plate fixed connection, the cover is equipped with the second spring on the round slide bar, the one end of second spring with backstop piece fixed connection, the other end with connecting plate fixed connection, the bottom fixed mounting of fixed beam has L shape piece, the L shape piece is kept away from the upper portion of one end of fixed beam is equipped with the arc slide face.
Preferably, the molding device further comprises a plurality of first rotating rods and a plurality of temporary placing mechanisms, the first rotating rods are respectively and rotatably installed at the tops of the dies, the temporary placing mechanisms are all arranged at the tops of the bottom plates, and the temporary placing mechanisms are used for placing the demolded cement fiber cover plates.
Preferably, the temporary placing mechanism comprises two vertical seats, a second rotating rod, a placing plate, a baffle and a rubber pad, wherein the two vertical seats are fixedly installed at the top of the bottom plate, the second rotating rod is rotatably installed on the outer wall of one side, close to each other, of the vertical seats, the placing plate is fixedly installed on the outer wall of one side, close to each other, of the two vertical seats, the baffle is fixedly installed at the top of the placing plate, and the rubber pad is fixedly installed on the outer wall of one side, close to the second rotating rod, of the baffle.
Preferably, rubber sleeves are fixedly sleeved on the outer walls of the first rotating rod and the second rotating rod.
Preferably, guide plates are fixedly installed on the outer walls of the two sides of the vertical seats, which are close to the first rotating rod.
Compared with the related art, the cement fiber cover plate production formula and the cement fiber cover plate production process provided by the invention have the following beneficial effects:
the cement fiber cover plate produced by the cement fiber cover plate production formula provided by the invention abandons the traditional steel bars and wire meshes as aggregates, and replaces basalt fiber meshes and basalt limiting ribs, so that the cement fiber cover plate is small in overall mass, small in volume and light in installation, and can be completed by one person; the cement fiber cover plate produced by the methods of adjusting the cement water-cement ratio, adding basalt fibers, using high-performance additives and the like can obviously save raw materials on the premise of ensuring normal use performance, can achieve the strength, the folding resistance and the impact resistance equivalent to those of the traditional concrete cover plate, and greatly saves the cost due to the reduction of the material proportion;
the cement fiber cover plate production process provided by the invention can automatically apply vibration effects to a plurality of moulds through the use of forming equipment, quicken slurry self-leveling, and can also enable the cement fiber cover plate to be quickly separated from the moulds through the forming equipment, so that automatic demoulding is realized, the demoulded cement fiber cover plate can be automatically kept above the moulds, the taking of relevant workers is convenient, and the cement fiber cover plate production process has the advantages of saving time, reducing the investment of manpower and relieving the physical load of the relevant workers as a whole.
Drawings
FIG. 1 is a schematic view of a first view angle of a molding apparatus used in the cement fiber cover plate production process according to the present invention;
FIG. 2 is a schematic diagram of the mechanism of the mold shown in FIG. 1;
fig. 3 is a schematic structural view of a hidden bottom plate of a second view angle of a forming device used in the cement fiber cover plate production process according to the present invention;
FIG. 4 is an enlarged schematic view of portion A shown in FIG. 3;
FIG. 5 is a schematic view of the assembly of the push rod, the splice plate, the first spring, the connecting arm, the gate and the contact wheel shown in FIG. 4;
FIG. 6 is a front cross-sectional view of a forming apparatus used in the cement fiber cover plate production process provided by the invention;
FIG. 7 is an enlarged schematic view of portion B shown in FIG. 6;
FIG. 8 is a schematic diagram showing the assembly of a screw, a slide rail and a movable seat in a forming device used in the cement fiber cover plate production process of the present invention;
FIG. 9 is a schematic view of an assembly of the second motor, rotating arm, cross bar, stationary bar and drum shown in FIG. 4;
FIG. 10 is a schematic view of the temporary placement mechanism shown in FIG. 1;
FIG. 11 is a schematic view of the second rotating lever shown in FIG. 10;
FIG. 12 is a schematic diagram showing the assembly of a fixing plate, a check block, a connecting plate, a round slide bar and a second spring in a forming device used in the cement fiber cover plate production process of the present invention;
FIG. 13 is a schematic diagram showing the assembly of check blocks and L-shaped blocks in a forming device used in the cement fiber cover plate production process of the present invention;
fig. 14 is a load test load-displacement diagram obtained after a microcomputer controlled compression shear tester failure load test is performed on a cement fiber cover plate manufactured using the cement fiber production formulation and process provided by the present invention.
Reference numerals in the drawings: 1. a bottom plate; 2. a mounting base; 3. supporting a slide bar; 4. a mold; 5. a circular groove; 6. a support block; 7. a slide hole; 8. a push rod; 9. a splice plate; 10. a first spring; 11. a gate-shaped member; 12. a contact wheel; 13. a slide rail; 14. a movable seat; 15. an arch block; 16. a screw rod; 17. a first motor; 18. a linkage rod; 19. a cross bar; 20. a long waist hole; 21. a second motor; 22. a rotating arm; 23. a fixed rod; 24. a rotating drum; 25. a first rotating lever; 26. a vertical seat; 27. a second rotating lever; 28. placing a plate; 29. a baffle; 30. a rubber pad; 31. a guide plate; 32. a fixing plate; 33. a non-return block; 34. a sloping slide surface; 35. a connecting plate; 36. a round slide bar; 37. a second spring; 38. a fixed beam; 39. an L-shaped block; 40. an arc sliding surface.
Detailed Description
The invention will be further described with reference to the drawings and embodiments.
Referring to fig. 1-13, the present embodiment provides a cement fiber cover plate production formula and a process, wherein the cement fiber cover plate production formula comprises the following raw materials in parts by weight: 8 parts of cement, 1.76 parts of silica powder, 2.4 parts of water, 0.24 part of polypropylene fiber, 0.2 part of water reducer, 7.04 parts of quartz sand, 0.7 part of basalt fiber net and 0.8 part of basalt fiber rib.
The cement fiber cover plate production process comprises the following steps:
t1: sieving quartz sand, and selecting a fine and uniform part;
t2: uniformly binding basalt fiber ribs on basalt fiber nets through iron wires to form fiber frameworks, and then pre-placing the frameworks in a die of forming equipment;
referring to fig. 1 and 2, the molding equipment comprises a bottom plate 1, two mounting seats 2 are fixedly mounted at the top of the bottom plate 1, two supporting slide bars 3 are fixedly mounted on the outer wall of one side, close to each other, of the two mounting seats 2, a plurality of molds 4 are sleeved on the two supporting slide bars 3 in a sliding manner, in particular, four rectangular sleeve blocks are fixedly mounted at the bottom of each mold 4, linear bearings are fixedly mounted in each sleeve block, sliding connection is formed by the linear bearings and the supporting slide bars 3, a mold groove is formed at the top of each mold 4, four circular grooves 5 are formed in the inner wall of the bottom of each mold groove, supporting blocks 6 are arranged in the four circular grooves 5, the top surfaces of the supporting blocks 6 and the inner wall of the bottom of each mold groove are positioned in the same horizontal plane, sliding holes 7 are formed in the inner walls of the bottom of the four circular grooves 5, push rods 8 are arranged in the four sliding holes 7 in a sliding sealing manner referring to fig. 5-7, specifically, a sealing ring is fixedly installed on the inner wall of the sliding hole 7, the push rods 8 penetrate through the sealing ring and are in sliding sealing connection with the inner ring of the sealing ring, the top ends of the four push rods 8 are fixedly connected with the corresponding supporting blocks 6, the bottom ends of the four push rods 8 are fixedly installed with connecting plates 9, a first spring 10 is sleeved on the push rods 8, the top ends of the first spring 10 are fixedly connected with the bottom of the die 4, the bottom ends of the first spring 10 are fixedly connected with the connecting plates 9, the bottoms of the four connecting plates 9 are fixedly installed with connecting arms, the bottom ends of the four connecting arms are fixedly installed with the same door-shaped piece 11, the same contact wheels 12 are rotatably installed on the inner walls of two sides of the door-shaped piece 11, when the contact wheels 12 are pushed upwards, the four push rods 8 can slide upwards simultaneously, and two sliding rails 13 are fixedly installed on the inner wall of the bottom plate 1 with reference to figures 1, 6 and 8, the same movable seat 14 is slidably arranged on the two sliding rails 13, an arch block 15 is fixedly arranged at the top of the movable seat 14, the same screw rod 16 is rotatably arranged on the two mounting seats 2, a nut sleeve is fixedly arranged in the movable seat 14, the screw rod 16 penetrates through the nut sleeve and is rotatably combined with the inner wall of the nut sleeve, a first motor 17 is fixedly arranged on the outer wall of one side of one mounting seat 2, the first motor 17 is fixedly connected with one end of the screw rod 16, after the first motor 17 operates, the movable seat 14 can be transversely moved by driving the screw rod 16 to rotate, the arch block 15 can collide with the contact wheel 12 in the process of transversely moving the movable seat 14, after the contact wheel 12 is collided, the contact wheel 12 moves upwards, which is equivalent to the contact wheel 12 gradually rolls upwards along the low position of the arc surface, thereby driving the four push rods 8 to simultaneously slide upwards, so as to push out the cement fiber cover plate in the die cavity to realize automatic demoulding, the bottoms of the dies 4 are fixedly provided with hoop blocks, the hoop blocks are fixedly provided with the same linkage rod 18, the linkage rod 18 penetrates through the two mounting seats 2 and is in sliding connection with the two mounting seats 2, one end of the linkage rod 18 is fixedly provided with a transverse bar 19, a long waist hole 20 is formed in the transverse bar 19, one side outer wall of the corresponding mounting seat 2 is fixedly provided with a second motor 21, the output shaft of the second motor 21 is fixedly provided with a rotating arm 22, the top of the rotating arm 22 is fixedly provided with a fixed rod 23 positioned in the long waist hole 20, the fixed rod 23 is rotatably sleeved with a rotary drum 24, the rotary drum 24 is movably connected with the inner walls of the two sides of the long waist hole 20, when the second motor 21 operates, the rotating arm 22 is driven to circularly rotate, the rotating arm 22 drives the fixed rod 23 to circularly move, and in a circular period, the fixing rod 23 firstly pushes the horizontal bar 19 to be far away from the mounting seat 2 through the rotary drum 24, and then pushes the horizontal bar 19 to be close to the mounting seat 2, so that the linkage rod 18 can circularly move left and right under the continuous operation of the second motor 21, the linkage rod 18 drives the plurality of dies 4 to move, the effect of vibrating the dies 4 is achieved, and the self-leveling of slurry in the dies 4 can be accelerated;
t3: stirring water, cement, silica powder, polypropylene fiber, a water reducing agent and quartz sand for 120s by stirring equipment to form cement fiber slurry, and then pouring the cement fiber slurry into each mold;
t4: the second motor 21 on the forming equipment is started to vibrate the cement fiber slurry in each mold, so that the surface of the cement fiber slurry is quickly self-leveling;
t5: placing the cement fiber slurry for 14 hours to solidify the cement fiber slurry;
t6: firstly, carrying out primary steam curing on the cured cement fiber cover plate, wherein the primary curing is carried out with a mold, the primary curing time is one day, and the aim is to initially improve the strength of the cured cement fiber cover plate and avoid the damage or material dropping during demolding;
t7: and starting the first motor 17 to run, enabling the arch blocks 15 to collide with the contact wheels 12 below each die 4 in sequence, demolding the cement fiber cover plate subjected to primary steam curing, and performing secondary steam curing on the cement fiber cover plate after demolding, wherein the secondary curing time is four days, so that the strength of the cement fiber cover plate is comprehensively enhanced after secondary curing is finished, and the finished cement fiber cover plate is obtained.
After the cement fiber cover plate is demolded, in order to ensure that the cement limit cover plate is reliably positioned above the mold 4 and is convenient to take, in the embodiment, referring to fig. 5, 12 and 13, the bottoms of the plurality of molds 4 are fixedly provided with the fixed plates 32, square sliding holes are formed in the fixed plates 32, check blocks 33 penetrate through the square sliding holes and are slidably arranged in the square sliding holes, fixed beams 38 are arranged below the plurality of molds 4, the fixed beams 38 are fixedly sleeved on two corresponding connecting arms, one end of the check block 33 close to the fixed beams 38 is provided with a bevel slide surface 34, one end of the check block 33 far away from the fixed beams 38 is fixedly provided with a connecting plate 35, the check block 33 is provided with a round sliding rod 36 penetrating through the round sliding holes, one end of the round sliding rod 36 far away from the fixed beams 38 is fixedly connected with the connecting plate 35, the round sliding rod 36 is sleeved with a second spring 37, one end of the second spring 37 is fixedly connected with the check block 33, the other end is fixedly connected with the connecting plate 35, an L-shaped block 39 is fixedly arranged at the bottom of the fixed beam 38, an arc sliding surface 40 is arranged at the upper part of one end of the L-shaped block 39, which is far away from the fixed beam 38, in the process of starting the first motor 17 to drive the arched block 15 to transversely move, the arched block 15 sequentially collides with the plurality of contact wheels 12, so that the plurality of contact wheels 12 move upwards, in the process of moving upwards the contact wheels 12, the four connecting arms, the four push rods 8 and the four support blocks 6 move upwards, under the action of pushing force, a cement fiber cover plate in a die cavity can be pushed upwards to the upper part of the die 4 to realize die stripping, in the process of moving upwards, the corresponding two connecting arms can drive the fixed beam 38 and the L-shaped block 39 to move upwards, the arc sliding surface 40 on the L-shaped block 39 can collide with the inclined surface 34 on the check block 33, under the component of the horizontal direction of the interference force, the check block 33 can slide backwards, in the process, the second spring 37 is gradually stretched, after the cement fiber cover plate moves upwards to the upper side of the die 4, the L-shaped block 39 moves completely to the upper side of the check block 33, after the interference force is lost, the L-shaped block 39 moves in a reset mode under the pull force of the second spring 37 so as to be blocked below the L-shaped block 39, thus the connecting arms, the push rods 8 and the like can be prevented from descending, the cement fiber cover plate is positioned above the die 4, after the relevant staff takes the cement fiber cover plate away, the connecting plates 35 are pulled backwards, the check block 33 moves backwards, the L-shaped block 39 is not blocked, and under the elasticity of the gravity and the first spring 10, the four connecting arms, the four push rods 8, the four support blocks 6 and the like can move downwards, and finally resetting is completed.
In this implementation, when the mould after the drawing of patterns is not taken away in time, in order not to delay the preparation of next batch of cement fibre apron, refer to fig. 1 and 10, former still includes a plurality of first dwang 25 and a plurality of mechanism of putting temporarily, cement fibre apron after the drawing of patterns can push into the mechanism of putting temporarily, a plurality of first dwang 25 rotate respectively and install the top at a plurality of moulds 4, a plurality of mechanism of putting temporarily all set up the top at bottom plate 1, specifically, the mechanism of putting temporarily includes two vertical seat 26, second dwang 27, place the board 28, baffle 29 and rubber pad 30, two vertical seat 26 all fixed mounting are on the top of bottom plate 1, second dwang 27 rotates and installs on the outer wall of one side that two vertical seat 26 are close to each other, place the board 28 fixed mounting on the outer wall of one side that two vertical seat 26 are close to each other, baffle 29 fixed mounting is on the outer wall of one side that baffle 29 is close to second dwang 27, rubber pad 30 can give cement fibre apron certain buffering, prevent cement fibre apron and the cement fibre apron from taking place hard baffle 29 and the outer wall of the equal fixed cover of a cover of the first and further fixed cover of the cement fibre apron that is equipped with the first rotary cover 25.
In this embodiment, in order to enable the cement fiber cover plate to smoothly enter between the two corresponding vertical seats 26, the guide plates 31 are fixedly mounted on the outer walls of the two vertical seats 26 on one side close to the first rotating rod 25.
In this embodiment:
when the molding equipment is used, the prepared fiber skeletons are placed in the cavities of the dies 4, then the stirred cement slurry is poured into the cavities according to the required quantity of each cement fiber cover plate, after the slurry is poured, the second motor 21 is started to operate, the second motor 21 drives the fixing rod 23 to do circular motion through the rotating arm 22, in the process of rotating the fixing rod 23, the transverse bar 19 is pushed away from the mounting seat 2 through the rotating drum 24, then the transverse bar 19 is pushed to be close to the mounting seat 2, circulation is achieved, the transverse bar 19 drives the linkage rod 18 to move, the linkage rod 18 can move circularly left and right, the linkage rod 18 drives the dies 4 to move, and the slurry in the dies 4 can be quickly self-leveling relative to the vibration effect applied to the dies 4;
after the slurry is leveled, after the slurry is completely stood, solidified and primarily maintained, when demoulding is needed, the first motor 17 is started, the first motor 17 drives the screw rod 16 to rotate, the screw rod 16 drives the movable seat 14 to transversely move, the arch block 15 on the movable seat 14 sequentially props against the contact wheels 12 in the moving process, the contact wheels 12 move upwards, the corresponding four connecting arms, four push rods 8, four support blocks 6 and the like are driven by the contact wheels 12 to move upwards, so that the cement fiber cover plate can be separated from the inner wall of the mould groove and pushed to the upper part of the mould 4, the fixed beam 38 and the L-shaped block 39 are driven to move upwards in the rising process of the four connecting arms, the arc sliding surface 40 on the L-shaped block 39 props against the inclined sliding surface 34 on the corresponding check block 33, the check block 33 can slide backwards, the second spring 37 will be stretched, and after the cement fiber cover plate moves upwards to the upper side of the mould 4, the L-shaped block 39 moves completely to the upper side of the check block 33, after losing the interference force, under the pulling force of the second spring 37, the L-shaped block 39 will reset, block under the L-shaped block 39, after the arch block 15 passes the contact wheel 12, the cement fiber cover plate will still be above the mould 4, thus facilitate the relevant staff to take the cement fiber cover plate, after the relevant staff takes the cement fiber cover plate, pull the connecting plate 35 backwards, drive the check block 33 to move backwards, no longer form a block to the L-shaped block 39, under the elasticity of gravity and the first spring 10, four connecting arms, four push rods 8, four supporting blocks 6, etc. will move downwards, finally finish resetting;
when the mould after the drawing of patterns is not taken off in time, and the mould needs to carry out the preparation of next batch of cement fibre apron again, relevant can be with cement fibre apron push to corresponding temporary put the mechanism along first dwang 25, after cement fibre apron gets into temporary put between two perpendicular seats 26 of mechanism, rotate it by second dwang 27 and support, the lower extreme of cement fibre apron keeps laminating with placing the board 28, after the cement fibre apron descends to a certain extent, loosen, under the effect of gravity, cement fibre apron can slide downwards voluntarily, the bottom of final cement fibre apron can contact with the rubber pad 30 on the baffle 29, baffle 29 prevents its further gliding, mould 4 at this moment has not sheltered from, then the preparation of next batch of cement fibre apron can be carried out.
Data detection and bearing capacity experiment
1. Weight and size detection:
20 cement fiber cover plates are randomly extracted for size and weight detection, and the detection results are shown in table 1.
TABLE 1 Cement fiber cover size, weight measurements
2. Load bearing test
(1) Design load experiment
The bearing capacity test detection method comprises the following steps: and (3) randomly selecting a cement fiber cover plate, placing the cement fiber cover plate on a horizontal plane, supporting with simple supports at two sides, enabling the cement fiber cover plate to be overhead by more than 5cm in net span, grading and loading weights at the center of the cement fiber cover plate, and observing the vertical deformation condition of the centers at two sides of the cement fiber cover plate. And (3) loading the design load of 3.5KN/m < 2 > -0.78-0.49=1338N by adopting a weight simulation uniform load mode, wherein the vertical deformation is controlled to be not more than 2mm according to the weight of 140 Kg. The results of the detection are shown in Table 2
TABLE 2 Cement fiber cover test results (140 Kg)
Remarks: the vertical reading measured after unloading, left 76, mm, right 77, mm.
(2) Breaking load test
The method for detecting the weight is characterized in that a mode of uniformly distributing the load by adopting weights is adopted, the detection method and the design load method are adopted, the damage load is 2 times (280 Kg according to the weight) of the design load, the damage load during damage is not less than 2 times of the design load, and the vertical deformation is controlled to be not less than 20 mm. And the detection result is qualified.
(3) Damage load test of microcomputer control compression shear tester
The bearing capacity test detection method comprises the following steps: placing the cement fiber cover plate on a horizontal plane, supporting with simple supports at two sides, and making the net span 65cm, the cement fiber cover plate overhead by more than 5cm, and carrying out uniform-speed loading test on the center position of the cement fiber cover plate by using a microcomputer control compression shear tester, wherein the loading rate is 10mm/min.
In the uniform loading process of the microcomputer-controlled compression shear testing machine, the deformation amount and the corresponding load of the cement fiber cover plate are shown in detail in fig. 14. (none of the above data contains the mass of the pad and the mass of the support anchor, which totaled 48Kg during the test)
Steel ball impact test
The steel ball impact test detection method comprises the following steps: the cement fiber cover plate is placed on a horizontal plane, the two side supports are simply supported, the net span is 65cm, and the cement fiber cover plate is impacted by 5Kg steel balls falling freely from a 1.5m height position for 8 times without breaking control. And (3) detecting: the steel ball is not broken after 8 times of impact, the impact point has no obvious dent, and the steel ball has no transverse through crack. The steel ball was still able to withstand a 140Kg stack without breaking after 8 impact tests and an increase in adult weight of about 80Kg was still unbroken, the test results are shown in table 3.
TABLE 3 steel ball impact test results
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present invention.
Claims (9)
1. The cement fiber cover plate production formula is characterized by comprising the following raw materials in parts by weight: 8 parts of cement, 1.76 parts of silica powder, 2.4 parts of water, 0.24 part of polypropylene fiber, 0.2 part of water reducer, 7.04 parts of quartz sand, 0.7 part of basalt fiber net and 0.8 part of basalt fiber rib.
2. A process for producing a cement fiber cover board based on the cement fiber cover board production formulation of claim 1, comprising the steps of:
t1: sieving quartz sand, and selecting a fine and uniform part;
t2: uniformly binding basalt fiber ribs on a basalt fiber net at equal intervals to form a fiber skeleton, and then pre-placing the skeleton in a die of forming equipment;
the forming equipment comprises a bottom plate, and is characterized in that two mounting seats are fixedly mounted at the top of the bottom plate, two supporting slide bars are fixedly mounted on the outer wall of one side, which is mutually close to the mounting seats, of the bottom plate, a plurality of dies are sleeved on the supporting slide bars in a sliding manner, a die cavity is formed in the top of each die, four round grooves are formed in the inner wall of the bottom of each die cavity, supporting blocks are arranged in the four round grooves, sliding holes are formed in the inner wall of the bottom of each round groove, push rods are fixedly mounted in the sliding holes in a sliding manner, the top ends of the four push rods are fixedly connected with the corresponding supporting blocks, a connecting plate is fixedly mounted at the bottom ends of the four push rods, a first spring is sleeved on the push rods, the top ends of the first spring are fixedly connected with the dies, the bottom ends of the first spring are fixedly connected with the connecting plate, connecting arms are fixedly mounted at the bottom ends of the four connecting arms, identical shape pieces are fixedly mounted at the bottom ends of the four connecting arms, sliding holes are respectively arranged on the two sides of the connecting arms, two identical shape pieces are fixedly mounted on the inner walls of the connecting plates, two identical guide screws are fixedly connected with the same guide rails, two guide screws are fixedly mounted on the two sides of the same guide rails, one side of the guide rails are fixedly connected with one guide rails, two guide rails fixedly move, one guide rails fixedly penetrates through the two guide rails, and fixedly connected with one of the guide rails, and fixedly move, and one guide rails fixedly penetrates through one of the bottom plate, and are fixedly connected with one of the guide rails, a transverse bar is fixedly arranged at one end of the linkage rod, a long waist hole is formed in the transverse bar, a second motor is fixedly arranged on the outer wall of one side of the corresponding mounting seat, a rotating arm is fixedly arranged on an output shaft of the second motor, a fixing rod positioned in the long waist hole is fixedly arranged at the top of the rotating arm, a rotary drum is sleeved on the fixing rod in a rotating mode, and the rotary drum is movably connected with the inner walls of two sides of the long waist hole;
t3: uniformly stirring water, cement, silica powder, polypropylene fiber, a water reducing agent and quartz sand to form cement fiber slurry, and then pouring the cement fiber slurry into each mold;
t4: vibrating the cement fiber slurry in each mold through forming equipment to enable the surface of the cement fiber slurry to be quickly self-leveling;
t5: placing the cement fiber slurry for 12-16 h to solidify the cement fiber slurry;
t6: firstly, carrying out primary steam curing on the solidified cement fiber cover plate, wherein the primary curing time is one day;
t7: and demolding the cement fiber cover plate subjected to primary steam curing, and performing secondary steam curing on the cement fiber cover plate after demolding, wherein the secondary curing time is four days, and obtaining the finished cement fiber cover plate after finishing secondary curing.
3. The cement fiber cover board production process according to claim 2, wherein in the T3, the stirring time is 120s.
4. The cement fiber cover plate production process according to claim 2, wherein a sealing ring is fixedly arranged on the inner wall of the sliding hole, and the push rod penetrates through the sealing ring and is in sliding sealing connection with the inner ring of the sealing ring.
5. The cement fiber cover plate production process according to claim 3, wherein a fixed plate is fixedly installed at the bottoms of the plurality of dies, a non-return block is installed on the fixed plate in a penetrating and sliding mode, fixed beams are arranged below the plurality of dies, the fixed beams are fixedly sleeved on the two corresponding connecting arms, an inclined sliding surface is arranged at one end, close to the fixed beams, of each non-return block, a connecting plate is fixedly installed at one end, far away from the fixed beams, of each non-return block, a round sliding rod is installed on each non-return block in a penetrating and sliding mode, one end, far away from the fixed beams, of each round sliding rod is fixedly connected with the connecting plate, a second spring is sleeved on each round sliding rod, one end of each second spring is fixedly connected with each non-return block, the other end of each second spring is fixedly connected with the connecting plate, an L-shaped block is fixedly installed at the bottom of each fixed beam, and an arc sliding surface is arranged at the upper portion, far away from one end of each fixed beam, of each L-shaped block.
6. The cement fiber cover plate production process according to claim 2, wherein the forming equipment further comprises a plurality of first rotating rods and a plurality of temporary placing mechanisms, the plurality of first rotating rods are respectively rotatably installed at the tops of the plurality of dies, the plurality of temporary placing mechanisms are all arranged at the top of the bottom plate, and the temporary placing mechanisms are used for placing the demolded cement fiber cover plate.
7. The cement fiber cover board production process according to claim 6, wherein the temporary placement mechanism comprises two vertical seats, a second rotating rod, a placement plate, a baffle plate and a rubber pad, wherein the two vertical seats are fixedly installed on the top of the bottom plate, the second rotating rod is rotatably installed on the outer wall of one side, close to each other, of the two vertical seats, the placement plate is fixedly installed on the outer wall of one side, close to each other, of the two vertical seats, the baffle plate is fixedly installed on the top of the placement plate, and the rubber pad is fixedly installed on the outer wall of one side, close to the second rotating rod, of the baffle plate.
8. The cement fiber cover plate production process according to claim 7, wherein rubber sleeves are fixedly sleeved on the outer walls of the first rotating rod and the second rotating rod.
9. The cement fiber cover board production process according to claim 7, wherein guide plates are fixedly installed on the outer walls of the two vertical seats on the side close to the first rotating rod.
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