CN109079994B - Method for manufacturing prefabricated step - Google Patents
Method for manufacturing prefabricated step Download PDFInfo
- Publication number
- CN109079994B CN109079994B CN201811012309.7A CN201811012309A CN109079994B CN 109079994 B CN109079994 B CN 109079994B CN 201811012309 A CN201811012309 A CN 201811012309A CN 109079994 B CN109079994 B CN 109079994B
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- CN
- China
- Prior art keywords
- stirring
- rod
- concrete
- manufacturing
- cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/48—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions wherein the mixing is effected by vibrations
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/38—Treating surfaces of moulds, cores, or mandrels to prevent sticking
- B28B7/386—Cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/38—Treating surfaces of moulds, cores, or mandrels to prevent sticking
- B28B7/388—Treating surfaces of moulds, cores, or mandrels to prevent sticking with liquid material, e.g. lubricating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/0806—Details; Accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/10—Mixing in containers not actuated to effect the mixing
- B28C5/12—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
- B28C5/16—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers the stirrers having motion about a vertical or steeply inclined axis
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Abstract
The invention relates to the field of prefabricated step manufacturing, and discloses a method for manufacturing prefabricated steps, which comprises the following steps: A. preparing materials: B. cleaning and assembling the molds; C. coating a mold interface agent; D. laying steel bars; E. stirring and pouring concrete; F. standing; G. the shaping, through the multiple stirring to the concrete in the churn, the misce bene, stirring quality is good, avoids producing a large amount of bubbles, has also strengthened the quality of pouring.
Description
Technical Field
The invention relates to the field of prefabricated step manufacturing, in particular to a method for manufacturing prefabricated steps.
Background
The cast-in-place concrete stairs are mainly used in modern houses, concrete needs to be stirred on site, supporting templates, binding steel bars, cast-in-place concrete, form removal and the like, the field procedures are multiple, the supporting amount is large, the stairs are difficult to pass in the structural construction stage, reinforcement and plastering are needed during room handing, tiles are needed for partial projects, a large amount of garbage is generated, manpower is consumed, more cost is wasted, and meanwhile, the defects of workers can bring great influence to the construction progress.
In recent years, with the development of the construction industry, more and more people select PC (precastcon crete-precast concrete) members when building houses, the construction environment of the PC members is in a PC factory and is safer than field construction compared with the traditional cast-in-place concrete, the installation speed and the construction progress can be remarkably improved through the prefabrication size, meanwhile, the field operation amount of the construction site adopting the PC members is remarkably reduced, dust pollution and noise pollution can be effectively reduced, however, when the precast concrete is manufactured, concrete stirring is required, and when small-sized concrete stirring is performed on the construction site, stirring is usually completed manually, but when manual mixing is performed, stirring is usually not uniform due to problems of physical strength and strength, and bubbles are easily generated after the stirring is completed and pouring is performed, when the bubbles are generated and then poured into the mold, the problem of poor structural stability of the manufactured ladder steps is caused, and even the safety of a user is influenced.
Disclosure of Invention
The invention aims to provide a method for manufacturing a prefabricated step ladder, which aims to solve the problem of insufficient manual stirring and uneven stirring in the traditional concrete stirring process.
The manufacturing method of the prefabricated step in the scheme comprises the following steps:
A. preparing materials: familiarizing with drawings, and checking materials at each stage;
B. cleaning and assembling the die: cleaning the residual concrete and other impurities in the inner cavity by using a cleaning piece;
C. coating a mold interface agent: the release agent is uniformly coated without accumulation;
D. laying steel bars: erecting steel bars according to drawings and quality standards;
E. concrete stirring and pouring: proportioning cement, water, sand and stones according to a use environment and a standard, then putting the mixture into a mixing drum for mixing, removing bubbles while mixing, then pouring out the mixture for perfusion, installing a vibrating rod outside a mould, and vibrating while perfusion;
F. standing: standing for 10-24h after the completion of perfusion;
G. molding: and taking out the formed stair after standing, and airing.
The technical principle and the effect of the scheme are as follows:
1. through the multiple stirring to the concrete in the churn, the misce bene, stirring quality is good, avoids producing a large amount of bubbles, has also strengthened the quality of pouring.
2. The vibrating spear is installed to vibrate when filling, so that the generation of bubbles is further avoided, the structural stability is strong, and the use is convenient.
3. After the pouring is finished and the standing is carried out for 10-24 hours, the concrete prefabricated step can obtain good forming and drying effects, and the demoulding is easier.
And further, in the step B, the cleaning piece is a steel wire brush or a scraper, and all the splicing parts of the dies are cleaned by the steel wire brush or the scraper until no residual concrete exists. The die is cleaned by the cleaning piece, so that the problem of nonuniform shape in the next use is avoided.
Further, in the step C, the interfacial agent is required to be uniformly applied until no flow occurs during application. It is desirable to coat its surface uniformly to ensure pouring aesthetics and structural integrity.
Furthermore, in the step E, the granularity of the selected stones is 4-12 mm. Experiments prove that the concrete mixed by the stone granularity in the range is more suitable for manufacturing prefabricated steps.
And G, taking out the formed stair, and airing for 5-10 hours until the inside and the outside are completely dried.
Drawings
FIG. 1 is a sectional view of a concrete mixing mechanism in a method of manufacturing a prefabricated step according to an embodiment of the present invention.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the stirring device comprises a stirring cylinder 1, a stirring shaft 2, a stirring rod 3, stirring blades 4, a fixing rod 5, a cylinder body 6, a piston plate 7, a lifting rod 8, a connecting rod 9, a material sucking pipe 10 and a jacking surface 11.
The embodiment is basically as shown in the attached figure 1: the manufacturing method of the prefabricated step ladder comprises the following steps:
A. preparing materials: the materials at each stage are checked with the help of the drawing.
B. Cleaning and assembling the die: the cleaning piece is used for cleaning up the residual concrete and other sundries in the inner cavity, the cleaning piece is a steel wire brush or a scraper, and all the splicing parts of the dies are cleaned up by the steel wire brush or the scraper until no residual concrete exists.
C. Coating a mold interface agent: the release agent is uniformly coated without accumulation, the interfacial agent is required to be uniformly coated without flowing during coating, and no obvious mark is required to be sprayed on the surface of the mold.
D. Laying steel bars: and (5) erecting steel bars according to drawings and quality standards.
E. Concrete stirring and pouring: at the moment, a concrete stirring mechanism is needed to be used, the concrete stirring mechanism comprises a stirring cylinder 1, a stirring shaft 2 which is rotatably connected in the stirring cylinder 1 and a plurality of first stirring pieces which are fixedly connected at the lower end of the stirring shaft 2, the stirring shaft 2 is also uniformly provided with a plurality of groups of second stirring pieces, each first stirring piece comprises a stirring rod 3 and a plurality of stirring blades 4 arranged at the free end of the end part of the stirring rod 3, the plurality of stirring blades 4 are radially and uniformly distributed at the end part of the stirring rod 3, the stirring blades 4 are all hinged at the end part of the stirring rod 3, each second stirring piece comprises a fixed rod 5 connected with the stirring shaft, the free end of the fixed rod 5 is fixedly provided with a cylinder body 6, a slidable piston plate 7 is arranged in the cylinder body 6, the lower end of the piston plate 7 is connected with a lifting rod 8 which can penetrate out of the cylinder body 6, the length of connecting rod 9 is greater than the length of puddler 3, has seted up the helicla flute on the lifter 8, and 9 tip of connecting rod are equipped with the sliding block of slip in the helicla flute, and 6 lower extremes of cylinder body are equipped with inhales material pipe 10, and 1 bottom of churn is equipped with unevenness's jacking face 11, and 8 accessible dead weights of lifter glide.
The method comprises the steps of proportioning cement, water, sand and stones according to a use environment and standards, wherein the granularity of the selected stones is 8mm, mixing and stirring the proportioned materials, putting the proportioned materials into a stirring cylinder 1 for stirring and mixing, starting a stirring shaft 2 firstly during stirring, driving the first stirring piece and the second stirring piece to rotate simultaneously by the rotation of the stirring shaft 2, driving a lifting rod 8 to be driven intermittently by a lifting surface 11 when the second stirring piece rotates synchronously as a stirring blade 4 is hinged at the end part of a stirring rod 3 and the stirring blade 4 is opened by centrifugal force during rotation to better act on the stirring of concrete, and driving the piston plate 7 to ascend by the lifting rod 8 when the lifting rod 8 is lifted by jacking, sucking the concrete being stirred into a cylinder body 6 and then encountering a concave part during rotation, the jacking rod receives gravity factors and falls through dead weight, sucked concrete is pressed into the mixing drum 1, meanwhile, when the mixing blades 4 rotate along with the rotation of the mixing rod 3, the stirring blades are opened by centrifugal force during rotation due to the hinged action, the stirring blades can better act on the mixing of the concrete, the mixing blades 4 which are hinged are convenient to clean and clean, the jacking rod can not only play the role of jacking and extruding the piston plate 7, but also can fully mix the concrete again along with the rotation of the mixing shaft 2, and due to the matching arrangement of the spiral groove and the sliding block, the jacking rod can rotate under the driving of the sliding block during jacking and descending, the mixing uniformity is high, the mixing effect and the mixing effect are further enhanced, bubbles are removed during mixing and then poured out for filling, a vibrating rod is arranged outside the mould, the vibration is carried out while pouring, and the quality influence caused by bubbles is avoided.
Accomplish the even stirring of concrete through the cooperation between first stirring and the second stirring, wherein the rotation is a heavy stirring effect when the lifting rod rises and descends, and lifting rod drive piston board is extruded the cylinder body with the concrete suction, is a heavy stirring effect, and stirring vane articulates the setting, and centrifugal force scatters when rotating is a heavy stirring effect, and the concrete that extrudes stirs once more is a heavy stirring effect again, and multiple stirring makes the concrete mixing quality high.
F. Standing: standing for 18h after the completion of perfusion.
G. Molding: and taking out the formed stair after standing, and airing for 6 hours until the inside and the outside are completely dried.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (5)
1. The manufacturing method of the prefabricated step ladder is characterized by comprising the following steps of:
A. preparing materials: familiarizing with drawings, and checking materials at each stage;
B. cleaning and assembling the die: cleaning the residual concrete and other impurities in the inner cavity by using a cleaning piece;
C. coating a mold interface agent: the release agent is uniformly coated without accumulation;
D. laying steel bars: erecting steel bars according to drawings and quality standards;
E. concrete stirring and pouring: the concrete stirring mechanism is required to be used and comprises a stirring cylinder, a stirring shaft rotationally connected in the stirring cylinder and a plurality of first stirring pieces fixedly connected at the lower end of the stirring shaft, a plurality of groups of second stirring pieces are uniformly arranged on the stirring shaft, each first stirring piece comprises a stirring rod and a plurality of stirring blades arranged at the free end of the end part of the stirring rod, the stirring blades are radially and uniformly distributed at the end part of the stirring rod, the stirring blades are all hinged at the end part of the stirring rod, each second stirring piece comprises a fixed rod connected with the stirring shaft, a cylinder body is fixed at the free end of the fixed rod, a slidable piston plate is arranged in the cylinder body, the lower end of the piston plate is connected with a lifting rod capable of penetrating out of the cylinder body, a connecting rod capable of being rotationally connected with the lifting rod is arranged below the fixed rod, the position of, the end part of the connecting rod is provided with a sliding block sliding in the spiral groove, the lower end of the cylinder body is provided with a material sucking pipe, the bottom of the stirring cylinder is provided with an uneven jacking surface, and the lifting rod can slide downwards through self weight;
the cement, water, sand and stones are proportioned according to the use environment and standards, the proportioned materials are mixed and stirred, and then the materials are put into a stirring cylinder for stirring and mixing, during stirring, a stirring shaft is started first, the stirring shaft rotates to drive a first stirring piece and a second stirring piece to rotate simultaneously, because the stirring blades are hinged at the end part of a stirring rod, the stirring blades can be opened by centrifugal force during rotation and better act on the concrete during stirring, because the bottom of the stirring cylinder is provided with an uneven jacking surface, when the second stirring piece rotates synchronously, the jacking surface can intermittently drive a lifting rod, the lifting rod is jacked to lift a piston plate, the concrete for stirring is sucked into a cylinder body, then when the stirring rod rotates to meet a dent, the jacking rod is subjected to gravity factors and falls by dead weight, bubbles are removed while stirring and mixing and then poured out for filling, a vibrating rod is arranged outside the mould, and the mould vibrates during pouring;
F. standing: standing for 10-24h after the completion of perfusion;
G. molding: and taking out the formed stair after standing, and airing.
2. The method for manufacturing a prefabricated step ladder according to claim 1, wherein: and in the step B, the cleaning piece is a steel wire brush or a scraper, and all the splicing parts of the dies are cleaned by the steel wire brush or the scraper until no residual concrete exists.
3. The method for manufacturing a prefabricated step ladder according to claim 1, wherein: in the step C, the interfacial agent is required to be uniformly coated until no flow occurs during coating.
4. The method for manufacturing a prefabricated step ladder according to claim 1, wherein: in the step E, the granularity of the selected stones is 4-12 mm.
5. The method for manufacturing a prefabricated step ladder according to claim 1, wherein: and G, after the formed stair is taken out, airing for 5-10 hours until the inside and the outside are completely dried.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811012309.7A CN109079994B (en) | 2018-08-31 | 2018-08-31 | Method for manufacturing prefabricated step |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811012309.7A CN109079994B (en) | 2018-08-31 | 2018-08-31 | Method for manufacturing prefabricated step |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109079994A CN109079994A (en) | 2018-12-25 |
| CN109079994B true CN109079994B (en) | 2020-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811012309.7A Expired - Fee Related CN109079994B (en) | 2018-08-31 | 2018-08-31 | Method for manufacturing prefabricated step |
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| CN (1) | CN109079994B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112976268A (en) * | 2021-01-18 | 2021-06-18 | 贵州老福节能环保工程材料科技有限公司 | Column prefabricating process and prefabricating device thereof |
| CN112812947B (en) * | 2021-02-05 | 2023-12-15 | 厦门市江平生物基质技术股份有限公司 | Fermentation device for solid waste treatment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1214438A2 (en) * | 1984-06-27 | 1986-02-28 | Гомельский политехнический институт | Mixer |
| CN202933654U (en) * | 2012-10-30 | 2013-05-15 | 铜陵瑞莱科技有限公司 | Multi-stirring mixing device for ultra-fine pigment |
| CN205466732U (en) * | 2016-02-04 | 2016-08-17 | 刘军号 | Wet combined agitator tank of mortar of building |
| CN108407090A (en) * | 2018-04-29 | 2018-08-17 | 刘晓丹 | A kind of cement well pipe production is stirred conveying device with raw material |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108032424A (en) * | 2017-11-24 | 2018-05-15 | 绍兴市永坚建筑科技有限公司 | A kind of production technology of prefabricated component stair |
| CN107984609A (en) * | 2017-12-07 | 2018-05-04 | 贵州蓝图新材料股份有限公司 | A kind of stair method for prefabricating |
-
2018
- 2018-08-31 CN CN201811012309.7A patent/CN109079994B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1214438A2 (en) * | 1984-06-27 | 1986-02-28 | Гомельский политехнический институт | Mixer |
| CN202933654U (en) * | 2012-10-30 | 2013-05-15 | 铜陵瑞莱科技有限公司 | Multi-stirring mixing device for ultra-fine pigment |
| CN205466732U (en) * | 2016-02-04 | 2016-08-17 | 刘军号 | Wet combined agitator tank of mortar of building |
| CN108407090A (en) * | 2018-04-29 | 2018-08-17 | 刘晓丹 | A kind of cement well pipe production is stirred conveying device with raw material |
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| Publication number | Publication date |
|---|---|
| CN109079994A (en) | 2018-12-25 |
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Granted publication date: 20200728 |