CN109333755A - Method for forming multi-row-hole aerated concrete self-insulation building block by swing core die - Google Patents
Method for forming multi-row-hole aerated concrete self-insulation building block by swing core die Download PDFInfo
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- CN109333755A CN109333755A CN201811257096.4A CN201811257096A CN109333755A CN 109333755 A CN109333755 A CN 109333755A CN 201811257096 A CN201811257096 A CN 201811257096A CN 109333755 A CN109333755 A CN 109333755A
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- China
- Prior art keywords
- building block
- transverse slat
- foaming
- core model
- aerated concrete
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- 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.)
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Classifications
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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
- B28B1/14—Producing shaped prefabricated articles from the material by simple casting, the material being neither forcibly fed nor positively compacted
-
- 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
- B28B1/50—Producing shaped prefabricated articles from the material specially adapted for producing articles of expanded material, e.g. cellular concrete
-
- 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
- B28B1/50—Producing shaped prefabricated articles from the material specially adapted for producing articles of expanded material, e.g. cellular concrete
- B28B1/503—Moulds therefor
-
- 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
- B28B11/14—Apparatus or processes for treating or working the shaped or preshaped articles for dividing shaped articles by cutting
-
- 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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Structural Engineering (AREA)
- Moulds, Cores, Or Mandrels (AREA)
- Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
Abstract
The invention relates to a method for forming a multi-row-hole aerated concrete self-insulation building block by a swing core die, which comprises the following steps of aerated concrete pouring, foaming, standing curing and high-temperature steaming and pressing: (1) placing a swing core die into the die before foaming, then sequentially foaming and statically stopping maintenance, and swinging the swing core die transversely in a reciprocating manner in the foaming and statically stopping maintenance processes; (2) after the static maintenance is finished, taking out the swing core mold to form an aerated concrete block blank with a plurality of strip-shaped mold cavities, wherein both ends of each mold cavity are arc-shaped; (3) cutting the aerated concrete block blank into small blocks with standard block sizes by using a steel wire cutting machine, wherein each small block comprises a strip-shaped die cavity; (4) and (3) carrying out high-temperature steam pressing on the small building blocks to ensure that the building blocks have enough strength.
Description
Technical field
The present invention relates to building element manufacture technology fields, more particularly to swing the multiple rows of hole air entrained concrete of mandrel molding
The method of heat insulation building block.
Background technique
The building energy consumption total amount in China rises year by year, and building energy conservation has obtained the great attention of government, and builds for many years
Build the research hotspot of engineering and building material industry.The status increasingly in short supply in face of the energy, China's most area has been at present
Come into effect the standard of building energy conservation 75%.The thermal and insulating performance of wall is to determine the key factor of building energy conservation level, in order to
Meet the requirement of energy-saving design in construction, it is necessary to solve the problems, such as the insulation of wall.
Autoclave aerated concrete building block is based on one or more of industrial wastes such as flyash, quartz sand, mountain flour
Raw material are wanted, through building material made from the processes such as ingredient, stirring, aerating foaming, cutting, steam press maintenance, there is production cost
It is low, using trade waste, industrial production technology is mature, yield is big the features such as, therefore be widely used.But it is steam pressurized mixed
The thermal coefficient of solidifying earth building blocks is higher, and thermal insulation is poor, after use must External Wall carry out heat preservation protection, be not able to satisfy building oneself
The requirement of thermal insulation property.
Currently, die cavity is usually arranged in building block in order to improve the heat-proof quality of autoclave aerated concrete building block, to block
Heat bridge.There are mainly two types of die cavity generation types commonly used in the prior art, one is it is quiet stop maintenance after small building block it is enterprising
Row mechanical slotting, such as application No. is recorded in 201310140614.5 patent, in the milling long die sinking of drill carriage bed, this side
Method needs process each building block, and consuming time is long, low efficiency, be easy to cause the damage of building block, and in process
A large amount of dust is generated, is polluted the environment；Another kind is that fixed mold core is placed before casting, takes fixed mold core after casting
Out, i.e., die cavity is formed on block base, but this mode is during the taking-up of fixed mold core, it will usually because of mold core and aerating
The adhesion of concrete causes building block impaired.Therefore the equal Shortcomings of both modes are unfavorable for improving air-entrained concrete building block
Production efficiency.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of multiple rows of hole air entrained concrete self-heat conservings of swing mandrel molding to build
The method of block, it is steam-cured it is preceding on air-mixed concrete pieces base form die cavity, it is mechanical without being carried out in small building block after dicing
Fluting, improves production efficiency, and it is convenient to remove to swing core model, avoids during core model takes out and damages to building block.
The present invention is achieved through the following technical solutions, provide a kind of multiple rows of hole air entrained concrete of swing mandrel molding from
The method of insulation blocks, including casting aerated concrete, foaming, it is quiet stop maintenance and autoclave at high temperature, it is further comprising the steps of:
(1) it is put into swing core model in going in mold for foaming, then successively carries out foaming and stops conserving with quiet, stopped in foaming with quiet
During maintenance, swings core model and do lateral reciprocally swinging；Dynamic, air entrained concrete slurry are in due to swinging core model
It will not stick together with core model is swung, swing the convenience that core model takes out to ensure that；
(2) it is quiet stop maintenance after the completion of, by swing core model take out, formed have several strip die cavitys air-mixed concrete pieces base,
The both ends of each die cavity are arc-shaped；
(3) air-mixed concrete pieces base is cut into the small building block of standard block size using steel wire cutting machine, in each small building block
Include strip die cavity, heat bridge is blocked by die cavity, makes building block that there is heat preservation and insulation；
(4) autoclave at high temperature is carried out to small building block, makes building block that there is enough intensity.
This programme utilizes the swing of core model, avoids air entrained concrete slurry from sticking together with core model, and the both ends of die cavity
Be it is arc-shaped, eliminate the stress of cavity hole inner wall corner, improve the structural strength of building block.
As optimization, the time for being put into swing core model in step (1) in mold is the pendulum before casting aerated concrete
After dynamic core model is put into, successively carries out casting aerated concrete, foaming and quiet stop conserving.This prioritization scheme is poured in air entrained concrete
Core model will be swung before note is put into mold, it is easy to operate, die cavity is formed on block base after casting, improves production efficiency.
As optimization, the time for being put into swing core model in step (1) in mold is after casting aerated concrete.This
Prioritization scheme is after casting aerated concrete, going in mold for foaming is put into swing core model, and air entrained concrete is not sent out at this time
Raw solidification can will swing core model and smoothly be inserted into, since air entrained concrete has been poured into mold, can preferably control
Die cavity position.
As optimization, the swing core model includes transverse slat and extends downwardly from transverse slat and several rigidity affixed with transverse slat
Bar, the lower end of the rigid rod, which is equipped with, is not less than air-mixed concrete pieces base with the consistent die body of mold cavity shapes, the height of die body
Highly；The transverse slat is sliding on the rack, and driving motor is equipped in the rack, is installed on the output shaft of the driving motor
Have cam, be connected on transverse slat with the consistent push rod of its swaying direction, be connected with the idler wheel being bonded with cam on the push rod, it is horizontal
It is also connected by the spring parallel with push rod between plate and rack.This prioritization scheme is rotated using driving motor band moving cam, is led to
The pulling for crossing contact and spring of the cam with idler wheel moves back and forth push rod and transverse slat, thus make each die body reciprocally swinging,
Achieve the purpose that avoid and concrete slurry adhesion.
As optimization, vibrating motor is also equipped on the transverse slat.This prioritization scheme makes die body by setting vibrating motor
While horizontal swing, also vibrates, further improve preventing adhesiving effect.
As optimization, the push rod is connected to the center of transverse slat end, and the spring is two pieces, and about push rod
Axisymmetrical setting.The setting of this prioritization scheme keeps the movement of transverse slat more steady, avoids glancing off.
The invention has the benefit that ceaselessly swinging by core model, core model and air entrained concrete slurry is avoided to occur viscous
Even, it ensure that the integrality of building block when core model takes out；Die cavity is formed on the concrete block base before steam-cured, without after dicing
Small building block body on mechanical slotting one by one, production efficiency greatly improved.
Detailed description of the invention
Fig. 1 is that the present invention swings core mold structure schematic diagram；
Fig. 2 is A-A cross-sectional view in Fig. 1；
Fig. 3 is B-B cross-sectional view in Fig. 1；
It is as shown in the figure:
1, rack, 2, cam, 3, driving motor, 4, idler wheel, 5, push rod, 6, transverse slat, 7, rigid rod, 8, die body, 9, spring.
Specific embodiment
In order to clarify the technical characteristics of the invention, being illustrated below by specific embodiment to this programme.
Embodiment one
A method of swing the multiple rows of hole air entrained concrete heat insulation building block of mandrel molding, including casting aerated concrete, foaming,
It is quiet stop maintenance and autoclave at high temperature, it is further comprising the steps of:
(1) it is put into swing core model in going in mold for casting aerated concrete, then successively carries out casting aerated concrete, hair
Bubble and it is quiet stop conserving, foaming and it is quiet stop maintenance during, swing core model do lateral reciprocally swinging；Due to swinging at core model
In dynamic, therefore air entrained concrete slurry will not stick together with core model, to ensure that the convenience that core model takes out；
(2) it is quiet stop maintenance after the completion of, by swing core model take out, formed have several strip die cavitys air-mixed concrete pieces base,
The both ends of each die cavity are arc-shaped；
(3) air-mixed concrete pieces base is cut into the small building block of standard block size using steel wire cutting machine, in each small building block
Include strip die cavity, heat bridge is blocked by die cavity, makes building block that there is heat preservation and insulation；
(4) autoclave at high temperature is carried out to small building block, makes building block that there is enough intensity.
The swing core model of the present embodiment includes transverse slat 6 and extends downwardly from transverse slat and several rigid rods 7 affixed with transverse slat,
The lower end of the rigid rod 7, which is equipped with, is not less than air-mixed concrete pieces base with the consistent die body 8 of mold cavity shapes, the height of die body 8
Highly.In order to simplify structure, production cost is reduced, the rigid rod of the present embodiment uses the reinforcing bar of diameter 10mm, and die body is using thick
The steel plate of 6mm is spent, and smooth circular arc is processed at steel plate both ends.
Transverse slat slips in rack 1, and driving motor 3 is equipped in the rack 1 and supports the track groove of the transverse slat, institute
It states and cam 2 is installed on the output shaft of driving motor 3, be connected on transverse slat and the consistent push rod 5 of its swaying direction, the push rod
It is connected with the idler wheel 4 being bonded with cam on 5, is also connected by the spring 9 parallel with push rod between transverse slat and rack.
In order to guarantee that each die body amplitude of fluctuation is consistent on transverse slat, prevent from glancing off when transverse slat is mobile, the push rod of this implementation
It is connected to the center of transverse slat left part, the spring is two pieces, and is arranged about the axisymmetrical of push rod.It is anti-in order to improve
The effect of adhesion is also equipped with vibrating motor on transverse slat 6, so that die body generates vibration while swinging, further avoids
The adhesion of air entrained concrete slurry and die body.
By rack across mold top when use, die body is extended in mold, and it is mixed that aerating is carried out out of rack one lateral mold
Solidifying soil casting, when casting, are rotated by driving motor band moving cam, are moved right by the rotation promotion push rod of cam, are passed through bullet
Spring retracts push rod to the left, realizes the round-trip of push rod, to realize swinging back and forth for transverse slat and die body, plays and avoids mould
The effect of body and concrete slurry adhesion.
Embodiment two
The present embodiment and the difference of embodiment one be, after casting aerated concrete, going in mold for foaming be put into pendulum
Then dynamic core model successively carries out foaming and stops conserving with quiet, in the period after casting aerated concrete, before foaming, adds
Gas concrete does not solidify, and swinging core model can be easily inserted into air entrained concrete, since air entrained concrete has been deposited
It is being more convenient the control to die cavity position.
Certainly, above description is also not limited to the example above, technical characteristic of the present invention without description can by or
It is realized using the prior art, details are not described herein；Above embodiments and attached drawing are only used to illustrate the technical scheme of the present invention not
It is limitation of the present invention, is described the invention in detail referring to preferred embodiment, the ordinary skill people of this field
Member is it should be appreciated that variation, remodeling, the addition that those skilled in the art are made within the essential scope of the present invention
Or replacement also should belong to claims of the invention without departure from spirit of the invention.
Claims (6)
1. a kind of method for swinging the multiple rows of hole air entrained concrete heat insulation building block of mandrel molding, including casting aerated concrete, hair
Bubble, it is quiet stop maintenance and autoclave at high temperature, which is characterized in that it is further comprising the steps of:
(1) it is put into swing core model in going in mold for foaming, then successively carries out foaming and stops conserving with quiet, stopped in foaming with quiet
During maintenance, swings core model and do lateral reciprocally swinging；
(2) it is quiet stop maintenance after the completion of, by swing core model take out, formed have several strip die cavitys air-mixed concrete pieces base,
The both ends of each die cavity are arc-shaped；
(3) air-mixed concrete pieces base is cut into the small building block of standard block size using steel wire cutting machine, in each small building block
It include strip die cavity；
(4) autoclave at high temperature is carried out to small building block, makes building block that there is enough intensity.
2. a kind of method for swinging the multiple rows of hole air entrained concrete heat insulation building block of mandrel molding according to claim 1,
Be characterized in that: the time for being put into swing core model in step (1) in mold is to swing core model before casting aerated concrete and put
After entering, successively carries out casting aerated concrete, foaming and quiet stop conserving.
3. a kind of method for swinging the multiple rows of hole air entrained concrete heat insulation building block of mandrel molding according to claim 1,
Be characterized in that: the time for being put into swing core model in step (1) in mold is after casting aerated concrete.
4. a kind of method for swinging the multiple rows of hole air entrained concrete heat insulation building block of mandrel molding according to claim 1,
Be characterized in that: the swing core model includes transverse slat (6) and extends downwardly from transverse slat and several rigid rods (7) affixed with transverse slat,
The lower end of the rigid rod (7), which is equipped with, is not less than air entrained concrete with the consistent die body of mold cavity shapes (8), the height of die body (8)
The height of block base；The transverse slat slips on rack (1), is equipped with driving motor (3) on the rack (1), the driving electricity
It is equipped with cam (2), is connected on transverse slat and the consistent push rod of its swaying direction (5), the push rod on the output shaft of machine (3)
(5) it is connected with the idler wheel (4) being bonded with cam on, is also connected by the spring (9) parallel with push rod between transverse slat and rack.
5. a kind of method for swinging the multiple rows of hole air entrained concrete heat insulation building block of mandrel molding according to claim 4,
It is characterized in that: being also equipped with vibrating motor on the transverse slat (6).
6. a kind of method for swinging the multiple rows of hole air entrained concrete heat insulation building block of mandrel molding according to claim 4,
Be characterized in that: the push rod is connected to the center of transverse slat end, and the spring is two pieces, and the axisymmetrical about push rod
Setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811257096.4A CN109333755B (en) | 2018-10-26 | 2018-10-26 | Method for forming multi-row-hole aerated concrete self-insulation building block by swing core die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811257096.4A CN109333755B (en) | 2018-10-26 | 2018-10-26 | Method for forming multi-row-hole aerated concrete self-insulation building block by swing core die |
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| Publication Number | Publication Date |
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| CN109333755A true CN109333755A (en) | 2019-02-15 |
| CN109333755B CN109333755B (en) | 2020-03-24 |
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| CN201811257096.4A Active CN109333755B (en) | 2018-10-26 | 2018-10-26 | Method for forming multi-row-hole aerated concrete self-insulation building block by swing core die |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111702938A (en) * | 2020-06-30 | 2020-09-25 | 吴秋敏 | Manufacturing and processing technology of concrete perforated brick |
| CN112809882A (en) * | 2020-12-31 | 2021-05-18 | 赵宣 | Method for forming and manufacturing light heat-preservation autoclaved aerated concrete block |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5437124A (en) * | 1977-08-30 | 1979-03-19 | Doi Jirou | Method of making hollow aic material* molding flask and products thereof |
| CN1157769A (en) * | 1996-12-29 | 1997-08-27 | 山西建筑工程(集团)总公司建筑新技术开发分公司 | Hollow concrete products forming method and equipment |
| CN2670087Y (en) * | 2003-12-31 | 2005-01-12 | 山西民兴实业有限公司 | Hollow brick mould |
| CN203381014U (en) * | 2013-06-19 | 2014-01-08 | 上海钟宏科技发展有限公司 | Die for forming self-heat-insulation concrete block |
| CN104308960A (en) * | 2014-10-10 | 2015-01-28 | 广西宏发重工机械有限公司 | Model casing of aerated block hollow brick |
| CN105216100A (en) * | 2015-10-08 | 2016-01-06 | 山东高唐华通液压机械有限公司 | A kind of building blocks shaping mould |
| CN108501189A (en) * | 2018-04-19 | 2018-09-07 | 山东省建设发展研究院 | Equipment for manufacturing multi-row-hole autoclaved aerated concrete blocks |
-
2018
- 2018-10-26 CN CN201811257096.4A patent/CN109333755B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5437124A (en) * | 1977-08-30 | 1979-03-19 | Doi Jirou | Method of making hollow aic material* molding flask and products thereof |
| CN1157769A (en) * | 1996-12-29 | 1997-08-27 | 山西建筑工程(集团)总公司建筑新技术开发分公司 | Hollow concrete products forming method and equipment |
| CN2670087Y (en) * | 2003-12-31 | 2005-01-12 | 山西民兴实业有限公司 | Hollow brick mould |
| CN203381014U (en) * | 2013-06-19 | 2014-01-08 | 上海钟宏科技发展有限公司 | Die for forming self-heat-insulation concrete block |
| CN104308960A (en) * | 2014-10-10 | 2015-01-28 | 广西宏发重工机械有限公司 | Model casing of aerated block hollow brick |
| CN105216100A (en) * | 2015-10-08 | 2016-01-06 | 山东高唐华通液压机械有限公司 | A kind of building blocks shaping mould |
| CN108501189A (en) * | 2018-04-19 | 2018-09-07 | 山东省建设发展研究院 | Equipment for manufacturing multi-row-hole autoclaved aerated concrete blocks |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111702938A (en) * | 2020-06-30 | 2020-09-25 | 吴秋敏 | Manufacturing and processing technology of concrete perforated brick |
| CN112809882A (en) * | 2020-12-31 | 2021-05-18 | 赵宣 | Method for forming and manufacturing light heat-preservation autoclaved aerated concrete block |
| CN112809882B (en) * | 2020-12-31 | 2022-04-12 | 联海装配式建材有限公司 | Method for forming and manufacturing light heat-preservation autoclaved aerated concrete block |
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| CN109333755B (en) | 2020-03-24 |
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Address after: 128 Wolong Road, Jinan City, Shandong Province Patentee after: Shandong Institute of housing and urban rural development Address before: No.17, sanlizhuang, Jingliu Road, Jinan City, Shandong Province Patentee before: SHANDONG CONSTRUCTION DEVELOPMENT Research Institute |