CN118081947A - Device and production process for producing hydraulic engineering drainage channel by utilizing rapid hardening concrete - Google Patents
Device and production process for producing hydraulic engineering drainage channel by utilizing rapid hardening concrete Download PDFInfo
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- CN118081947A CN118081947A CN202410354266.XA CN202410354266A CN118081947A CN 118081947 A CN118081947 A CN 118081947A CN 202410354266 A CN202410354266 A CN 202410354266A CN 118081947 A CN118081947 A CN 118081947A
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- 239000004567 concrete Substances 0.000 title claims abstract description 109
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 claims abstract description 7
- 238000003825 pressing Methods 0.000 claims description 19
- 230000003014 reinforcing effect Effects 0.000 claims description 11
- 239000011248 coating agent Substances 0.000 claims description 10
- 238000000576 coating method Methods 0.000 claims description 10
- 239000004744 fabric Substances 0.000 claims description 9
- 230000002787 reinforcement Effects 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 230000007547 defect Effects 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000002955 isolation Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000002035 prolonged effect Effects 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 238000010924 continuous production Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 9
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 239000004568 cement Substances 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 230000007306 turnover Effects 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003203 everyday effect Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/16—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/08—Producing shaped prefabricated articles from the material by vibrating or jolting
- B28B1/087—Producing shaped prefabricated articles from the material by vibrating or jolting by means acting on the mould ; Fixation thereof to the mould
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
- B28B13/02—Feeding the unshaped material to moulds or apparatus for producing shaped articles
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
Abstract
The invention provides a device and a production process for producing a hydraulic engineering drainage canal by utilizing quick-setting concrete, which are applied to the technical field of drainage canal production devices, and the technical scheme is as follows: comprises a bottom die plate; the forming die is detachably arranged on the bottom die plate and comprises an inner layer template and an outer layer template detachably connected with the inner layer template, a die cavity is formed between the inner layer template and the outer layer template, and a feeding port communicated with the die cavity is formed at the top of the die cavity; the pressure plate is arranged right above the feeding port and is profiled with the die cavity, and is driven by the driving assembly to vertically press down so as to compact the quick-setting concrete in the die cavity; a vibrating device; the method has the technical effects that: the traditional mould placing direction is changed from the horizontal direction to the vertical direction, and the quick setting concrete can be selected from dry hard concrete or common plastic concrete added with an accelerator, so that the concrete can quickly reach initial setting; one set of die is used for continuous production, so that the production cost is reduced, and the production efficiency is improved.
Description
Technical Field
The invention relates to the technical field of drainage canal production devices, in particular to a device for producing a hydraulic engineering drainage canal by utilizing quick-setting concrete and a production process.
Background
In the current water drainage canal on the market, a large number of steel molds are required to be customized by a concrete prefabricated member manufacturer according to the yield, the traditional plastic (fluidity) concrete is used for production, the weight of a member is generally within the range of 1-3 tons, and after the demolding strength is required to be achieved, the secondary combination of the template is removed, so that the next batch of production can be carried out. In order to improve the production efficiency and increase the turnover use efficiency of the template, after the concrete pouring is finished, steam curing is usually adopted, each set of the template can only be turned once every day under normal conditions, if the temperature is lower, two days or longer are needed, under ideal temperature conditions, if 200 products with single specification are produced every day, 200 sets of the template are required to be configured, the investment of enterprise production is greatly increased, in addition, due to frequent disassembly and assembly of the template, certain influence and damage can be generated on the size and the surface of the template, the appearance and the size of the produced product can be seriously influenced after the turnover number of the template is increased, and if the production is continued, a large amount of manpower and material resources are sometimes required to be input for repairing the template, and meanwhile, the engineering cost is greatly increased.
Disclosure of Invention
The invention aims to provide a device and a production process for producing a hydraulic engineering drainage canal by utilizing quick-setting concrete, and the device has the advantages of convenience in disassembly and assembly; can realize continuous production of one set of die, reduce the production cost and improve the production efficiency.
To achieve the above and other related objects, the present invention provides the following technical solutions:
A device for producing hydraulic engineering drainage channels by utilizing quick setting concrete comprises a bottom die plate;
the forming die is detachably arranged on the bottom die plate and comprises an inner layer die plate and an outer layer die plate detachably connected with the inner layer die plate, a die cavity for forming a drainage channel is formed between the inner layer die plate and the outer layer die plate, and a feeding port communicated with the die cavity is formed at the top of the die cavity;
The pressing plate is arranged right above the feeding hole and is profiled with the die cavity, and is driven by the driving component to vertically press down so as to compact the quick-setting concrete in the die cavity;
and a vibrating device for vibrating and compacting the rapid hardening type concrete in the die cavity.
According to the technical scheme, the rapid hardening concrete is put into the die cavity from the feeding port, and the vibration device continuously applies strong high-frequency vibration to the forming die in the feeding process to be transmitted to the rapid hardening concrete so as to realize a compact structure; stopping feeding after the quick-setting concrete in the die cavity is densely filled, and vertically pressing the quick-setting concrete in the die cavity by the driving assembly driving the pressing plate to form a drainage channel by the quick-setting concrete; the traditional mould placing direction is changed from the horizontal direction to the vertical direction, the quick setting concrete can be dry hard concrete or common plastic concrete added with an accelerator, so that the concrete can reach initial setting quickly, a set of moulds can be continuously produced, the production cost is reduced, and the production efficiency is improved;
The inner layer template and the outer layer template are detachably connected, so that demolding is convenient; the forming die is detachably connected with the bottom die plate, so that the turnover of the forming die is facilitated, and a set of die is continuously produced; and the formed drainage canal is subjected to secondary demolding when the formed drainage canal is further cured to proper strength on the bottom die plate, so that deformation of the drainage canal caused by transferring curing after the drainage canal is formed is avoided.
In an embodiment of the present invention, a first adjusting component for adjusting the opening size of the outer layer template is disposed on the outer layer template;
The first adjusting component comprises two first screw rod sleeves which are oppositely arranged and respectively fixed at two ends of the outer layer template, and first screw rods with two ends respectively meshed with the two first screw rod sleeves.
In an embodiment of the present invention, a second adjusting component for adjusting the opening size of the inner layer template is disposed on the inner layer template;
The second adjusting assembly comprises two second screw rod sleeves which are oppositely arranged and respectively fixed at two ends of the inner-layer template, and second screw rods with two ends respectively meshed with the two second screw rod sleeves.
Through the technical scheme, two ends of the first screw rod are respectively meshed with the two first screw rod sleeves, and the opening size of the outer layer template can be adjusted by rotating the first screw rod; two ends of the second screw rod are respectively meshed with the two second screw rod sleeves, and the opening size of the inner-layer template can be adjusted by rotating the second screw rod;
When the demolding is carried out, the first screw rod is screwed to expand the outer-layer template outwards, the second screw rod is screwed to tighten the inner-layer template inwards, so that a small sliding gap is formed between the formed drainage channel and the forming mold, and the outer-layer template and the inner-layer template are lifted and removed by a crane or other upward lifting equipment, so that the demolding is facilitated.
In an embodiment of the invention, the driving assembly includes a main beam, a driving member fixed on the main beam, and a connecting frame connected to an output end of the driving member; the pressure plate is fixedly connected with the connecting frame.
Through the technical scheme, the main beam is convenient for a crane or other lifting equipment to lift the main beam to the position right above the forming die, and then the pressure plate is positioned right above the feeding port; the driving piece is used for driving the pressing plate to vertically press down so as to form the quick setting concrete into the drainage channel; the connecting frame is connected between the pressure plate and the driving piece, so that the pressure plate is pressed down more stably.
In an embodiment of the invention, a fixing column is fixedly connected to the main cross beam positioned at two sides of the driving piece, and a cloth operating table arranged close to the feeding opening is fixed at the bottom of the fixing column;
The top of the inner layer template is also provided with a cloth operation table.
Through the technical scheme, the cloth operating platform is convenient for the staff to operate actively; when the quick setting concrete in the die cavity is densely filled, workers need to remove and scrape redundant quick setting concrete in the feed port area on the distribution operation platform.
In an embodiment of the invention, an outer reinforcing rib is arranged on the outer side of the outer template, and a release coating is arranged on the inner side of the outer template;
An inner layer reinforcing rib is arranged on one side, far away from the outer layer template, of the inner layer template, and an anti-sticking coating is also arranged on one side, close to the outer layer template, of the inner layer template;
An isolation layer is arranged on the upper surface of the bottom die plate.
Through the technical scheme, the outer layer reinforcing ribs and the inner layer reinforcing ribs are used for reinforcing the strength of the inner layer template and the outer layer template; the anti-sticking coating is convenient for demoulding the inner layer template and the outer layer template; the isolation layer arranged on the upper surface of the bottom die plate is convenient for the second demoulding of the formed drainage channel.
In an embodiment of the present invention, the inner layer template and the outer layer template are connected through an elastic component;
the elastic component comprises a connecting plate integrally formed on the inner layer template, a connecting bolt penetrating through the connecting plate and the outer layer template, a connecting nut meshed with the connecting bolt, and springs with two ends respectively abutted against the outer layer template and the connecting nut.
By the technical scheme, under the state of non-tension or tension, the splice joint between the inner layer template and the outer layer template is in a closed state; under the regulation of the first regulating component and the second regulating component, the springs are compressed, and the inner-layer template and the outer-layer template generate small deformation, so that a small sliding gap is formed between the formed drainage channel and the forming die, and the demoulding is facilitated.
In an embodiment of the present invention, the outer layer template and the inner layer template are both provided with mounting holes, and the bottom die plate is provided with threaded holes matched with the mounting holes.
According to the technical scheme, bolts are meshed in the threaded holes through the mounting holes, so that the outer layer template, the inner layer template and the bottom die plate are fixed together; and the installation and the disassembly are convenient.
The invention also provides a production process for producing the hydraulic engineering drainage canal by utilizing the rapid hardening concrete, which is realized based on the device and comprises the following steps:
S1, placing a bottom die plate on a solid and flat ground before production;
S2, placing the prefabricated reinforcement cage on a bottom die plate according to the position;
S3, combining the inner layer template and the outer layer template to form a forming die, lifting the forming die from the upper part by using lifting equipment, and then falling to enable the steel reinforcement cage to be integrally arranged in the die cavity;
S4, fixing the forming die on a bottom die plate;
s5, uniformly throwing the uniformly stirred quick-setting concrete into the die cavity from the feed port; starting strong high-frequency vibration by the vibration device in the feeding process until the concrete in the die cavity is densely filled, and stopping feeding;
s6, maintaining the whole horizontal pressing die cavity to press the quick-setting concrete in the die cavity by matching with an ultrahigh-frequency vibrating pressure plate; when the set pressure is reached, lifting the pressure plate upwards, and observing whether the upper surface of the rapid hardening concrete is compact, smooth and flat at the moment; stopping pressing if the production requirement is met; if the production requirement is not met, quick setting concrete needs to be replenished, the high-frequency vibration time is prolonged, and the pressing operation is repeated;
S7, dismantling the connection between the forming die and the bottom die plate, expanding the outer die plate outwards, and tightening the inner die plate inwards to form a sliding tiny gap between the formed drainage channel and the forming die;
S8, removing the inner layer template, the outer layer template and all additional devices by using lifting equipment, checking whether the formed drainage channel has defects, and repairing if the formed drainage channel has the defects;
S9, curing the formed drainage channel on the bottom die plate, and performing secondary demoulding when the strength is reached to a preset value.
As described above, the device and the production process for producing the hydraulic engineering drainage canal by utilizing the rapid-hardening concrete have the following beneficial effects:
1. The device is suitable for the production and the manufacture of large-sized concrete drainage channels with the concrete dosage of 0.5 cubic meter or more and various specifications; in the production process, the traditional mould placing direction is changed from the horizontal direction to the vertical direction, and the quick setting concrete can be dry hard concrete or common plastic concrete added with an accelerator, so that the concrete can reach initial setting quickly, a set of moulds can be continuously produced, the production cost is reduced, and the production efficiency is improved;
2. The production process of the drainage canal in the current market is changed, and the investment of a large amount of steel molds required by the production of a concrete product factory by using a plastic concrete process is reduced;
3. the production equipment can be conveniently transported to a construction site according to actual conditions, so that a large amount of transportation cost is reduced, the engineering cost is reduced, and the engineering quality can be greatly improved.
Drawings
FIG. 1 is a schematic overall construction of an embodiment of the present invention;
FIG. 2 is a schematic diagram of a connection relationship between a molding die and a bottom die plate according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view at A-A in FIG. 2;
FIG. 4 is a schematic diagram of a connection between a platen and a driving structure according to an embodiment of the present invention;
Fig. 5 is a schematic structural view of an elastic component according to an embodiment of the present invention.
Reference numerals: 1. a bottom die plate; 2. a forming groove; 3. a forming die; 301. an inner layer template; 302. an outer layer template; 6. a mold cavity; 7. a feed port; 8. a pressure plate; 9. a drive assembly; 91. a main beam; 92. a driving member; 93. a connecting frame; 13. a vibration device; 14. a first adjustment assembly; 141. the first screw sleeve; 142. a first lead screw; 17. a second adjustment assembly; 171. the second screw sleeve; 172. a second lead screw; 20. fixing the column; 21. a cloth operating table; 22. an outer layer reinforcing rib; 23. an inner layer reinforcing rib; 24. an elastic component; 241. a connecting plate; 242. a connecting bolt; 243. a coupling nut; 244. a spring; 3021. a support template; 3022. a main body template; 3011. a master template; 3012. a cover plate; 33. an outer mold mounting plate; 34. an inner mold mounting plate; 35. and (5) a reinforcement cage.
Detailed Description
Further advantages and effects of the present invention will become apparent to those skilled in the art from the disclosure of the present invention, which is described by the following specific examples.
Please refer to fig. 1 to 5. It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the invention to the extent that it can be practiced, since modifications, changes in the proportions, or otherwise, used in the practice of the invention, are not intended to be critical to the essential characteristics of the invention, but are intended to fall within the spirit and scope of the invention. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the invention, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the invention may be practiced.
Example 1
Referring to fig. 1 and 2, the present invention provides a device for producing a hydraulic engineering drainage canal by using quick setting concrete, which comprises a bottom die plate 1, a forming die 3 and a pressing plate 8; because the demoulded drainage canal needs to be maintained on the bottom die plate 1, enough bottom die plates 1 can be configured according to actual yield; the bottom die plate 1 in the embodiment can be formed by pouring reinforced concrete, or can be manufactured by using a steel plate according to the requirements; a forming groove 2 is arranged at the edge of the bottom die plate 1;
The forming die 3 is detachably connected with the bottom die plate 1, and the forming die 3 is vertically arranged on the bottom die plate 1, so that the production space is saved and the drainage channel is convenient to form; the forming die 3 comprises an inner layer template 301 and an outer layer template 302 detachably connected with the inner layer template 301; the inner layer template 301 and the outer layer template 302 are assembled together to form a die cavity 6 for forming a drainage channel, and a feed port 7 communicated with the die cavity 6 is formed at the top; quick setting concrete, which is concrete capable of reaching initial setting in a short time (the concrete only loses plasticity) and is not concrete which reaches final setting strength in a short time and has service conditions, is poured into the cavity 6 from the feed port 7; the quick setting concrete in the embodiment can be dry hard concrete or common plastic concrete added with an accelerator, so that the concrete can quickly reach initial setting, a set of dies can be used for continuous production, the production cost is reduced, and the production efficiency is improved.
Referring to fig. 1, 2 and 3, the outer layer template 302 includes a support template 3021 and a main body template 3022 integrally formed on the support template 3021, where the support template 3021 and the main body template 3022 have different U-shaped structures; wherein the opening of the main body template 3022 is provided with one or a plurality of first adjusting components 14 for adjusting the opening size of the outer layer template 302 vertically;
The first adjusting component 14 comprises two first screw sleeves 141 which are oppositely arranged and respectively fixed at two ends of the outer layer template 302, and a first screw 142 with two ends respectively engaged and connected in the two first screw sleeves 141;
The inner layer template 301 comprises a main template 3011 and two cover plates 3012 which are respectively and integrally formed at two sides of the column template, wherein the main template 3011 is of a flaring U-shaped structure; wherein the opening of the column template is provided with one or a plurality of second adjusting components 17 for adjusting the opening size of the inner layer template 301 vertically;
the second adjusting assembly 17 comprises two second screw sleeves 171 which are oppositely arranged and respectively fixed at two ends of the inner-layer template 301, and second screws 172 with two ends respectively meshed with the two second screw sleeves 171;
When demolding, the outer layer template 302 is outwards expanded by screwing the first lead screw 142, the inner layer template 301 is inwards tightened by screwing the second lead screw 172, so that a small sliding gap is formed between the formed drainage channel and the forming mold 3, and the outer layer template 302 and the inner layer template 301 are lifted and removed by using a crane or other upward lifting equipment, so that demolding is facilitated.
Referring to fig. 3 and 5, an inner layer template 301 is installed in an outer layer template 302, two side cover plates 3012 are abutted against two side inner walls of the outer layer template 302, and the inner layer template 301 and the outer layer template 302 are connected through a plurality of groups of elastic components 24;
the elastic assembly 24 comprises a connecting plate 241 integrally formed on the cover plate 3012, a connecting bolt 242 penetrating through the connecting plate 241 and the outer layer template 302, a connecting nut 243 meshed with the connecting bolt 242, and a spring 244 with two ends respectively abutting against the outer layer template and the connecting nut 243; the connecting plate 241 is vertically arranged with the cover plate 3012, and the connecting plate 241 is abutted against the inner wall of the outer layer template 302;
In a state of no tension or tension, the splicing seam between the inner layer template 301 and the outer layer template 302 is in a closed state, and in this state, the mold cavity forms a drainage channel; the springs 244 are compressed under the adjustment of the first adjusting assembly 14 and the second adjusting assembly 17, and the inner layer template 301 and the outer layer template 302 are slightly deformed, so that a small sliding gap is formed between the formed drainage channel and the forming die 3, and the demoulding is facilitated.
Referring to fig. 1 and 2, a support template 3021 is abutted against the forming groove 2, and an outer die mounting plate 33 is integrally formed on the outer side of the support template 3021; the inner layer template 301 is abutted to the top of the bottom die plate 1, and an inner die mounting plate 34 is integrally formed on the inner side of the bottom layer template; mounting holes are formed in the outer die mounting plate 33 and the inner die mounting plate 34 at equal intervals, threaded holes matched with the mounting holes are formed in the forming groove 2 and the top of the bottom die plate 1 at equal intervals, bolts penetrate through the mounting holes to be mounted in the threaded holes, and then the outer die mounting plate 33 and the inner die mounting plate 34 are fixed on the bottom die plate 1, so that the inner die plate 301 and the outer die plate 302 are temporarily and fixedly mounted on the bottom die plate 1; the demolding and dismantling after the drainage canal is formed are convenient, and a set of continuous production of the mold is realized.
Referring to fig. 1 and 4, a pressing plate 8 is arranged right above a feeding port 7, and the pressing plate 8 and a die cavity are profiled; the platen 8 is driven by the drive assembly 9 to be vertically pressed down to compact the rapid hardening concrete in the mould cavity;
the driving assembly 9 comprises a main beam 91, a driving piece 92 and a connecting frame 93, the driving piece 92 in the embodiment is a short-stroke hydraulic cylinder, a cylinder body bolt of the hydraulic cylinder is fixed below the middle part of the beam 91, a piston rod bolt of the hydraulic cylinder is fixed in the middle part above the connecting frame 93, and a pressure plate 8 is fixed below the connecting frame 93; the main beam 91 is convenient for a crane or other lifting equipment to lift the main beam to the position right above the forming die 3, and then the pressure plate 8 is positioned right above the feed port 7; the driving member 92 drives the platen 8 vertically downward so that the rapid hardening concrete is formed into a drainage channel.
Referring to fig. 1 and 4, fixing columns 20 are fixed on the bottom of a main beam 91 at two sides of a driving member 92 by bolts, a material distributing operation table 21 is fixed on the bottom of the fixing columns 20 by bolts, and the material distributing operation table 21 is arranged close to a material feeding opening 7 and is flush with the material feeding opening 7; the top of the inner layer template 301 is also provided with a cloth operation table 21; the cloth console 21 mounted on the top of the fixed column 20 and the inner form 301 is also detachable after use; the cloth operating table 21 is convenient for the staff to operate actively; when the rapid hardening concrete in the die cavity 6 is densely filled, workers need to remove and scrape redundant rapid hardening concrete in the feed port 7 area on the material distribution operation platform.
Referring to fig. 1 and 2, the outer side of the outer layer template 302 is provided with an outer layer reinforcing rib 22, and the inner side is coated with a release coating; the inner layer template 301 is provided with an inner layer reinforcing rib 23 on the side far away from the outer layer template 302, and a release coating is also coated on the side close to the outer layer template 302; the anti-sticking coating in the embodiment can be a tetrafluoroethylene coating, and the tetrafluoroethylene coating has good anti-corrosion performance and also prevents the rapid hardening concrete from being adhered to the surface of the forming die 3;
the upper surface of the bottom die plate 1 and the inner wall of the forming groove 2 are coated with isolating layers which can be melted paraffin or other liquid materials with isolating property; so that the formed drainage canal does not adhere to the bottom die plate 1 during secondary demoulding.
Referring to fig. 1 to 4, a plurality of vibration devices 13 are disposed on the outer walls of the outer layer mold plate 302 and the inner layer mold plate 301 and on the platen 8; the vibration means 13 in this embodiment may be a pneumatic vibrator or vibration may be achieved by means of an eccentric shaft driven by a suitable motor;
The vibration device 13 in the embodiment can adopt a GT series turbine type pneumatic vibrator, and a plurality of vibration devices 13 can be respectively arranged in different areas of the forming die 3 according to different directions (horizontal and vertical) of exciting forces; in the production process, according to the actual situation of feeding, sequentially opening electromagnetic valves to respectively control the vibrating devices 13 at different positions; it is emphasized here that, in order to ensure the best effect of vibration, the vibration frequency can be adjusted by the pressure of the compressed air, and the vibration excitation force of the device with the frequency of 70-150Hz can be better absorbed by the material, so as to achieve the best product forming effect.
If the quick-setting concrete is ordinary plastic concrete added with an accelerator, the vibration device 13 matched with the quick-setting concrete can also adopt a hydraulic, pneumatic, ordinary vibration motor or ordinary plug-in vibrator to vibrate and compact the concrete; the vibrator is not suitable for vibrating dry and hard concrete.
Wherein, the experimental data of the hard concrete are exemplified: after plastic concrete is used for the traditional drainage canal, dry hard concrete is used; since the dry and hard concrete has certain initial strength after strong high-frequency vibration (the length of a drainage channel commonly used in the current market is generally less than 2 meters/section), the internal pressure P=ρgh of the lowest highest stress point, wherein ρ=the density of the concrete is 2.5Kg/dm 3, g=9.8N, and h=200cm; the internal maximum pressure value generated by the dead weight of the common concrete is only 0.025Mpa (0.25 Kg/cm 2) after calculation, which is far smaller than the minimum strength which can be achieved after the strong vibration of the dry and hard concrete, (through test, under the correct operation condition, the dry and hard concrete after the strong vibration of the device can directly achieve the compressive strength of more than 0.2Mpa after the vibration is finished), so the dry and hard concrete which is closely compacted through the strong vibration can realize immediate template dismantling, realize continuous production of a set of dies, reduce the production cost and improve the production efficiency;
The dry and hard concrete reduces the water consumption, improves the compactness of the concrete, and obviously improves the strength, the impermeability and the frost resistance, and can save 30 percent of cement consumption and reduce the production cost of products due to the characteristics of the dry and hard concrete in the same grade of concrete.
Example 2
The invention also provides a production process for producing the hydraulic engineering drainage canal by utilizing the rapid hardening concrete, which is realized based on the device and comprises the following steps:
S1, placing a special bottom die plate 1 on a solid and flat ground before production;
s2, placing the prefabricated reinforcement cage 35 on the special bottom die plate 1 according to the position;
S3, combining the inner layer template 301 and the outer layer template 302 to form a forming die 3, lifting the forming die by a crane from the upper part, then falling down, and integrally loading the reinforcement cage 35 into the die cavity 6;
s4, respectively bolting the inner layer template 301 and the outer layer template 302 with the special bottom die plate 1;
S5, uniformly pouring the uniformly stirred quick-setting concrete into the die cavity 6 from the feed opening 7, starting strong high-frequency vibration in the feeding process until the concrete in the die cavity 6 is densely filled, and stopping feeding;
If the quick setting concrete is the common plastic concrete added with the quick setting agent, the dosage of the quick setting agent is controlled and fully stirred;
s6, hanging the pressure plate 8 right above the forming die 3 by using a crane, and removing and strickling excessive quick setting concrete in the material inlet 7 area on a material distribution operation table 21 by a worker; the driving piece 92 drives the pressing plate 8 to apply enough downward pressure, the whole horizontal pressing is kept slowly downward to the set pressure in combination with the ultra-high frequency vibration, then the pressing plate 8 is lifted upwards, and whether the upper surface of the rapid hardening concrete at the moment is compact, smooth and flat is observed; stopping pressing if the requirement is met; if the requirement is not met, the quick-setting concrete needs to be replenished, the high-frequency vibration time is prolonged, the operation is repeated until the appearance of the upper surface of the quick-setting concrete is qualified, the concrete feeding is stopped, and the high-frequency vibration is stopped;
s7, removing bolts for fixing the inner layer template 301 and the outer layer template 302 with the bottom die plate 1, adjusting the first adjusting assembly 14 to expand the outer die outwards, and adjusting the second adjusting assembly 17 to tighten the inner die inwards, so that a small sliding gap is formed between the formed drainage channel and the forming die 3;
S8, firstly removing a pressure plate 8 and a driving component 9 at the top of the forming die 3 by using a crane, then vertically lifting an inner layer template 301 and an outer layer template 302 upwards by using the crane or a forklift, and after removing all additional devices of the forming die 3, keeping the forming drainage channel in place with the bottom die plate 1 due to a certain weight; checking the surface of the formed drainage channel, wherein the surface meets the use requirement, and the channel body has no crack and is qualified;
If the surface of the formed drainage channel is provided with tiny pitted surface holes which do not affect the use, the treatment method is as follows: after the formed drainage canal is demolded, cement slurry with proper viscosity and the same ingredients as the surface concrete is prepared on the surface of the formed drainage canal by using an airless spray coater immediately, then PVC protective films are covered immediately, all the redundant cement slurry is extruded from the side face by using a special scraping plate repeatedly and pressed flat (in order to ensure good combination and smooth surface, the operation is required to be carried out before the initial setting of the product concrete, the protective films are removed in time after the final setting of the concrete), when defective products which cannot be repaired by the products are generated due to misoperation, the products are scrapped, and the quick setting concrete can be directly recycled;
S9, curing the formed drainage channel on the bottom die plate, and performing secondary demoulding when the strength is reached to a preset value.
Or in the steps S7 and S8, after the inner layer template 301 and the outer layer template 302 are temporarily opened, the two templates are outwards translated and then move along the horizontal direction, so that the two templates are separated from the formed drainage channel, and the product demoulding is realized.
In summary, the invention changes the traditional mould placing direction from horizontal to vertical in the production process, the quick setting concrete can be dry hard concrete or common plastic concrete added with accelerator, thereby realizing quick initial setting of the concrete, realizing continuous production of one set of moulds, reducing the production cost and improving the production efficiency. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (9)
1. A device for producing hydraulic engineering drainage channels by utilizing quick setting concrete is characterized in that: comprises a bottom die plate (1);
The forming die (3) is detachably arranged on the bottom die plate (1), the forming die (3) comprises an inner layer template (301) and an outer layer template (302) detachably connected with the inner layer template (301), a die cavity (6) for forming a drainage channel is formed between the inner layer template (301) and the outer layer template (302) in an assembled mode, and a feed inlet (7) communicated with the die cavity (6) is formed at the top of the forming die;
the pressing plate (8) is arranged right above the feeding hole (7) and is profiled with the die cavity, and the pressing plate (8) is driven by the driving component (9) to vertically press down so as to compact the quick-setting concrete in the die cavity;
and a vibrating device (13) for vibrating the rapid-hardening concrete in the mold cavity (6).
2. The apparatus for producing hydraulic engineering drainage channels by using rapid hardening concrete according to claim 1, wherein: the outer layer template (302) is provided with a first adjusting component (14) for adjusting the opening size of the outer layer template (302);
the first adjusting assembly (14) comprises two first screw sleeves (141) which are oppositely arranged and respectively fixed at two ends of the outer layer template (302), and first screws (142) with two ends respectively engaged and connected in the two first screw sleeves (141).
3. The apparatus for producing hydraulic engineering drainage channels by using rapid hardening concrete according to claim 2, wherein: the inner layer template (301) is provided with a second adjusting component (17) for adjusting the opening size of the inner layer template (301);
The second adjusting assembly (17) comprises two second screw sleeves (171) which are oppositely arranged and respectively fixed at two ends of the inner-layer template (301), and second screws (172) with two ends respectively meshed with the two second screw sleeves (171).
4. The apparatus for producing hydraulic engineering drainage channels by using rapid hardening concrete according to claim 1, wherein: the driving assembly (9) comprises a main beam (91), a driving piece (92) fixed on the main beam (91) and a connecting frame (93) connected with the output end of the driving piece (92); the pressure plate (8) is fixedly connected with the connecting frame (93).
5. The apparatus for producing hydraulic engineering drainage channels by utilizing rapid hardening concrete according to claim 4, wherein: the main cross beams (91) positioned at two sides of the driving piece (92) are fixedly connected with fixing columns (20), and a cloth operating table (21) arranged close to the feeding port (7) is fixed at the bottom of each fixing column (20);
the top of the inner layer template (301) is also provided with a cloth operation table (21).
6. The apparatus for producing hydraulic engineering drainage channels by using rapid hardening concrete according to claim 1, wherein: an outer reinforcing rib (22) is arranged on the outer side of the outer template (302), and an anti-sticking coating is arranged on the inner side of the outer template;
An inner layer reinforcing rib (23) is arranged on one side of the inner layer template (301) far away from the outer layer template (302), and an anti-sticking coating is also arranged on one side of the inner layer template close to the outer layer template (302);
An isolation layer is arranged on the upper surface of the bottom die plate (1).
7. The apparatus for producing hydraulic engineering drainage channels by using rapid hardening concrete according to claim 1, wherein: the inner layer template (301) is connected with the outer layer template (302) through an elastic component (24);
the elastic component (24) comprises a connecting plate (241) integrally formed on the inner-layer template (301), a connecting bolt (242) penetrating through the connecting plate (241) and the outer-layer template (302), a connecting nut (243) in meshed connection with the connecting bolt (242), and a spring (244) with two ends respectively abutting against the outer-layer template and the connecting nut (243).
8. The apparatus for producing hydraulic engineering drainage channels by using rapid hardening concrete according to claim 1, wherein: the outer layer template (302) and the inner layer template (301) are respectively provided with a mounting hole, and the bottom die plate (1) is provided with threaded holes matched with the mounting holes.
9. A production process for producing hydraulic engineering drainage channels by utilizing quick-setting concrete is characterized in that: the production process is carried out on the basis of a device according to any one of claims 1 to 8, comprising:
S1, placing a bottom die plate (1) on a solid and flat ground before production;
s2, placing the prefabricated reinforcement cage (35) on the bottom die plate (1) according to the position;
s3, combining the inner layer template (301) and the outer layer template (302) to form a forming die (3), lifting the forming die (3) from the upper part by lifting equipment, and then falling down to enable the steel reinforcement cage (35) to be integrally arranged in the die cavity (6);
S4, fixing the forming die (3) on the bottom die plate (1);
S5, uniformly pouring the uniformly stirred quick-setting concrete into the die cavity (6) from the feed inlet (7); in the feeding process, the vibrating device (13) starts strong high-frequency vibration until the concrete in the die cavity (6) is densely filled, and the feeding is stopped;
S6, maintaining the rapid hardening concrete in the integral horizontal pressing die cavity (6) by matching with an ultrahigh frequency vibration pressure plate (8); when the set pressure is reached, lifting the pressure plate (8) upwards, and observing whether the upper surface of the rapid hardening concrete is compact, smooth and flat at the moment; stopping pressing if the production requirement is met; if the production requirement is not met, quick setting concrete needs to be replenished, the high-frequency vibration time is prolonged, and the pressing operation is repeated;
S7, detaching the connection between the forming die (3) and the bottom die plate (1), expanding the outer layer die plate (302) outwards and tightening the inner layer die plate (301) inwards to form a small sliding gap between the formed drainage channel and the forming die (3);
s8, removing the inner layer template (301), the outer layer template (302) and all additional devices by using lifting equipment, checking whether the formed drainage channel has defects, and repairing if the formed drainage channel has defects;
S9, curing the formed drainage channel on the bottom die plate (1), and performing secondary demoulding when the strength is reached to a preset value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410354266.XA CN118081947A (en) | 2024-03-27 | 2024-03-27 | Device and production process for producing hydraulic engineering drainage channel by utilizing rapid hardening concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410354266.XA CN118081947A (en) | 2024-03-27 | 2024-03-27 | Device and production process for producing hydraulic engineering drainage channel by utilizing rapid hardening concrete |
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| Publication Number | Publication Date |
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| CN118081947A true CN118081947A (en) | 2024-05-28 |
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| CN202410354266.XA Pending CN118081947A (en) | 2024-03-27 | 2024-03-27 | Device and production process for producing hydraulic engineering drainage channel by utilizing rapid hardening concrete |
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| Country | Link |
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| CN (1) | CN118081947A (en) |
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- 2024-03-27 CN CN202410354266.XA patent/CN118081947A/en active Pending
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