CN116587431A - Machine-made sand natural sand mixing preparation high-strength concrete - Google Patents
Machine-made sand natural sand mixing preparation high-strength concrete Download PDFInfo
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- CN116587431A CN116587431A CN202310696123.2A CN202310696123A CN116587431A CN 116587431 A CN116587431 A CN 116587431A CN 202310696123 A CN202310696123 A CN 202310696123A CN 116587431 A CN116587431 A CN 116587431A
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- sand
- feeding
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- 239000004576 sand Substances 0.000 title claims abstract description 89
- 238000002156 mixing Methods 0.000 title claims abstract description 54
- 239000011372 high-strength concrete Substances 0.000 title claims abstract description 18
- 238000002360 preparation method Methods 0.000 title description 2
- 238000003756 stirring Methods 0.000 claims abstract description 64
- 239000002994 raw material Substances 0.000 claims abstract description 33
- 238000003860 storage Methods 0.000 claims abstract description 33
- 239000004568 cement Substances 0.000 claims abstract description 27
- 238000004519 manufacturing process Methods 0.000 claims abstract description 19
- 239000004567 concrete Substances 0.000 claims abstract description 17
- 238000007789 sealing Methods 0.000 claims description 41
- 230000001360 synchronised effect Effects 0.000 claims description 41
- 230000005540 biological transmission Effects 0.000 claims description 31
- 239000000463 material Substances 0.000 claims description 23
- 238000003825 pressing Methods 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 230000033001 locomotion Effects 0.000 claims description 6
- 230000007246 mechanism Effects 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 2
- 238000012546 transfer Methods 0.000 abstract description 2
- 238000009423 ventilation Methods 0.000 description 15
- 230000006872 improvement Effects 0.000 description 10
- 230000008569 process Effects 0.000 description 7
- 230000009467 reduction Effects 0.000 description 7
- 230000009471 action Effects 0.000 description 5
- 238000004891 communication Methods 0.000 description 4
- 238000013459 approach Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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
- B28C5/08—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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/04—Supplying or proportioning the ingredients
- B28C7/0454—Volumetric measuring devices, e.g. for consecutively delivering predetermined volumes of ingredients
- B28C7/0459—Volumetric measuring devices, e.g. for consecutively delivering predetermined volumes of ingredients the ingredients being first supplied into measuring chambers, e.g. containers or skips
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/04—Supplying or proportioning the ingredients
- B28C7/0481—Plant for proportioning, supplying or batching
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/04—Supplying or proportioning the ingredients
- B28C7/06—Supplying the solid ingredients, e.g. by means of endless conveyors or jigging conveyors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
The invention discloses a process for preparing high-strength concrete by mixing machine-made sand and natural sand, and belongs to the field of concrete production. A process for preparing high-strength concrete by mixing machine-made sand and natural sand comprises the following steps: adding the machine-made sand with required weight into a stirring cylinder; adjusting a rotating handle below a storage bin filled with natural sand and cement, so that an adjusting slide plate moves to a corresponding proportional position; the conveyor belt moves to the lower part of a storage bin filled with natural sand, natural sand with corresponding proportion and weight is automatically added into the stirring cylinder, and the stirring cylinder mixes the natural sand with machine-made sand; the conveyer belt moves to the lower part of a storage bin filled with cement, cement with corresponding proportion and weight is automatically added into a stirring cylinder, and the stirring cylinder mixes cement, natural sand and machine-made sand; this scheme adds the raw materials through the feed bin directly in to the churn, need not to weigh the raw materials, need not to transfer the raw materials many times.
Description
Technical Field
The invention belongs to the field of concrete production, and in particular relates to a process for preparing high-strength concrete by mixing machine-made sand and natural sand.
Background
The term concrete refers to cement as a cementing material and sand and stone as aggregate; the cement concrete, also called ordinary concrete, obtained by mixing the cement concrete with water (which can contain additives and admixtures) according to a certain proportion is widely applied to civil engineering.
The most important mechanical property of the hardened concrete refers to the capability of the concrete to resist compressive, tensile, bending, shearing and other stresses. The cement ratio, the cement variety and amount, the aggregate variety and amount, stirring, forming and curing all directly affect the strength of the concrete.
Therefore, the raw material proportion needs to be adjusted according to the requirement in the concrete manufacturing process. The conventional method is to weigh the raw materials with required weight according to the requirement in advance and mix the raw materials gradually, so that the raw materials are required to be transferred for many times in the process of weighing and mixing, the whole occupied space is large, a plurality of large-scale holding tools are required, and tools such as a cart are required to move, so that the workload of workers is increased.
Disclosure of Invention
The invention aims to solve the technical problem of providing a process for preparing high-strength concrete by mixing machine-made sand and natural sand, which can automatically add partial raw materials with corresponding weight according to the weight of one raw material and the proportion of concrete.
The invention relates to a process for preparing high-strength concrete by mixing machine-made sand and natural sand, which comprises the following steps:
s1, adding machine-made sand with required weight into a stirring cylinder;
s2, adjusting a rotating handle below a storage bin filled with natural sand, so that an adjusting slide plate moves to a corresponding proportional position;
s3, adjusting a rotating handle below the storage bin filled with cement, so that the adjusting slide plate moves to a corresponding proportional position;
s4, moving the conveyor belt to the position below a storage bin filled with natural sand, automatically adding the natural sand with corresponding proportion and weight into a stirring cylinder, and simultaneously mixing the natural sand and the machine-made sand by the stirring cylinder;
s5, the conveyer belt moves to the position below a storage bin filled with cement, cement with corresponding proportion and weight is automatically added into a stirring cylinder, and the stirring cylinder mixes the cement, the natural sand and the machine-made sand;
s6, adding water with specified volume into the stirring barrel, and stirring the water by the stirring barrel;
and S7, removing the stirred concrete from the stirring cylinder.
As a further improvement of the invention, the powder content of the machine-made sand is less than or equal to 20 percent.
As a further improvement of the invention, the stirring cylinder is longitudinally and slidably connected above the base; two adding mechanisms are arranged on the base; the adding mechanism comprises the storage bin, a feeding component arranged at the lower part of the storage bin and a control component arranged between the storage bin and the stirring barrel.
The conveying belt is movably arranged on the base; the conveyor belt comprises a working position below one bin and an initial position between the two bins.
As a further improvement of the invention, the conveyor belt is provided with a crawler belt and a crawler motor for driving the crawler belt to move; the surface of the crawler belt is uniformly provided with a striker plate.
As a further improvement of the invention, the lower end of the feed bin is provided with a feed pipe; the feeding assembly comprises a feeding frame rotatably connected in the feeding pipe; a material containing groove is uniformly arranged on the feeding frame along the circumferential direction; a storage bin blanking port is arranged at the eccentric position of the upper end of the feeding pipe; a discharge hole is formed in the side wall of the feeding pipe; the discharge port and the bin blanking port are not communicated with the same material containing groove at the same time.
As a further improvement of the invention, the upper end of the feeding pipe is connected with a feeding baffle plate for sealing a blanking port of the storage bin in a sealing and rotating way; the feeding baffle plate and the feeding frame are coaxially arranged; and the feeding baffle is uniformly provided with feed inlets for raw materials to pass through along the circumferential direction.
As a further improvement of the invention, the lower end of the feeding baffle is coaxially and fixedly connected with a ratchet gear; the conveying belt is provided with a conveying belt detent plate which is connected with the ratchet gear in a one-way transmission way and is communicated with the driving material port and the material discharging port of the material bin.
The control assembly comprises an adjusting frame which is connected to the upper end of the base in a sliding manner; the adjusting frame is provided with a closed detent plate which is connected with the ratchet gear in a one-way transmission way and is staggered with the driving material port and the blanking port of the storage bin.
The adjusting frame is connected with the mixing drum in a one-way transmission way, when the mixing drum moves downwards, the adjusting frame moves reversely, the adjusting frame enables the closed pawl plate to move in a direction far away from the ratchet wheel, and at the moment, the closed pawl plate is not in transmission with the ratchet wheel.
The feeding frame is in transmission connection with the adjusting frame, so that the adjusting frame moves forward, and the sealing pawl plate can drive the ratchet gear to rotate.
As a further improvement of the invention, the control assembly also comprises a longitudinally arranged base connecting pipe fixedly connected to the upper end of the base, a stirring cylinder sealing rod fixedly connected to the side wall of the stirring cylinder and in sealing sliding connection with the base connecting pipe, and a sealing positioning pipe fixedly connected to the upper end of the base; the adjusting frame is provided with a sealing cylinder which is in sealing sliding connection with the sealing positioning pipe; the lower part of the outer wall of the base connecting pipe is provided with an air outlet pipe communicated with the sealing positioning pipe.
The lower end of the side wall of the base connecting pipe is provided with a ventilation seat which enables the base connecting pipe to be communicated with the outside; the upper end of the base is connected with an adjusting slide bar in a sliding manner; the adjusting slide bar is fixedly connected with a sealing plate for sealing the ventilation seat; the adjusting slide bar is provided with a communication port which can be communicated with the ventilation seat; a slide bar spring for driving the sealing plate to seal the ventilation seat is arranged between the adjusting slide bar and the base; the conveying belt is provided with a slide bar driving plate for driving the adjusting slide bar to move.
The control assembly further comprises a reduction gear set fixedly connected to the upper end of the base; a feeding frame gear is coaxially arranged at the lower end of the outer wall of the feeding frame; an input gear in meshed transmission connection with the feeding frame gear is arranged on the reduction gear set; the adjusting frame is longitudinally connected with a sliding rack in a sliding manner along the sliding direction of the adjusting frame; the speed reduction gear set is provided with an output gear which can be in meshed transmission connection with the sliding rack.
A rack spring for driving the sliding rack to move upwards is arranged between the lower end of the sliding rack and the adjusting frame; the upper end of the sliding rack is provided with a downward pressing inclined plane which is obliquely distributed; the conveying belt is provided with a rack lower pressing plate which can prop against the lower pressing inclined surface so as to drive the sliding rack to move downwards.
As a further improvement of the invention, the feeding assembly further comprises a moving frame longitudinally and slidably connected in the feeding frame and a screw rod rotatably connected in the feeding pipe and driving the moving frame to longitudinally move.
A plurality of obliquely arranged adjusting sliding plates are uniformly arranged on the movable frame along the circumferential direction; an adjusting slide plate is longitudinally and hermetically connected in the material containing groove.
As a further improvement of the invention, a plurality of synchronous sliding rods are longitudinally and slidably connected on the movable frame; the lower part of the screw is uniformly provided with synchronous clamping grooves which can be spliced with the synchronous sliding rods along the circumferential direction; the periphery of the feeding pipe is longitudinally connected with a lifting driving plate for driving each synchronous slide rod to longitudinally move in a sliding manner.
And the conveyer belt is provided with a synchronous lower pressing plate for driving the lifting driving plate to move downwards.
When the conveyer belt is located initial position, synchronous holding down plate and lift drive plate separation, the lift drive plate is located top extreme position under the effect of traveller spring, and synchronous slide bar and synchronous draw-in groove separation, the screw rod rotates at this moment and will drive and remove the frame longitudinal movement, adjusts the material chamber.
As a further improvement of the invention, a driving component is arranged at the upper end of the base; the driving assembly comprises a driving motor and two swinging frames respectively used for driving the screw rods below the corresponding storage bins to rotate.
The swinging frame is rotatably connected to the upper end of the base; the swing frame is coaxially and rotatably connected with a swing gear in transmission connection with a driving motor; the eccentric position on the swing frame is rotationally connected with a driving gear which can be in transmission connection with the screw; the swing gear is in transmission connection with the driving gear through a synchronous belt.
The lower end of the outer wall of the screw is coaxially provided with a screw gear which can be meshed with the driving gear for transmission connection.
Compared with the prior art, the invention has the beneficial effects that: according to the scheme, the time for adding the raw materials is automatically determined through the control assembly according to the weight of the machine-made sand added into the mixing drum, so that the weight of other raw materials is determined to be added, manual calculation is not needed, and time and labor are saved.
This scheme adds the raw materials through the feed bin directly in to the churn, need not to weigh the raw materials, need not to transfer the raw materials many times.
In the scheme, the screw rod can drive the movable frame to longitudinally move, the adding proportion is adjusted, the feeding frame can be driven to rotate, and raw materials are added into the stirring barrel.
Drawings
Fig. 1 and 2 are schematic structural views of the present invention;
FIG. 3 is a schematic view of the structure of the feed assembly of the present invention;
fig. 4 is an exploded view of the feed assembly of the present invention.
Fig. 5 is a schematic structural diagram of a control assembly according to the present invention.
Fig. 6 is a schematic view of the conveyor belt of the present invention in an operative position.
Fig. 7 is a schematic view of the structure of the conveyor belt of the present invention.
Fig. 8 is a schematic structural view of the lifting driving plate of the present invention in a lower limit position.
Fig. 9 and 10 are schematic views of the structure of the closing pawl plate of the present invention as it moves away from the pawl gear.
Fig. 11 is a schematic structural view of the sliding rack of the present invention.
Fig. 12 is a schematic view of the structure of the present invention when the driving gear is meshed with the screw gear.
The reference numerals in the figures illustrate:
1. a base; 11. a mixing drum sliding rod; 12. a base connecting pipe; 122. an air outlet pipe; 123. a ventilation seat; 2. a stirring cylinder; 21. a mixing drum sliding frame; 22. a stirring cylinder spring; 23. a mixing drum sealing rod; 3. a storage bin; 31. a feed pipe; 32. a discharge port; 33. a blanking port of the stock bin; 34. positioning a sliding rail; 4. a conveyor belt; 40. a track motor; 41. a track; 411. a striker plate; 42. a swing motor; 43. a slide bar driving plate; 44. a synchronous lower pressing plate; 45. a conveyor belt detent plate; 46. driving the supporting rod; 47. a rack lower pressing plate; 51. sealing the positioning tube; 52. an adjusting frame; 521. a sealing cylinder; 522. closing the detent plate; 53. a reduction gear set; 531. an input gear; 532. an output gear; 54. sliding racks; 541. pressing down the inclined plane; 55. adjusting the slide bar; 551. a sealing plate; 552. a communication port; 553. a slide bar spring; 61. a feed baffle; 611. a material opening; 612. a ratchet gear; 62. a feeding frame; 621. rong Liaocao; 622. a feed rack gear; 63. a moving rack; 631. adjusting the sliding plate; 632. a thread sleeve; 64. a synchronous slide bar; 641. the slide bar is convex; 65. a lifting driving plate; 651. lifting the sliding column; 652. a spool spring; 66. a screw; 661. rotating the handle; 662. a synchronous clamping groove; 663. a screw gear; 71. a driving motor; 711. a motor gear; 72. a swing frame; 721. swinging the abutting plate; 73. a swing gear; 74. and a drive gear.
Detailed Description
First embodiment: referring to fig. 1-12, a process for preparing high-strength concrete by mixing machine-made sand and natural sand comprises the following steps:
s1, adding machine-made sand with required weight into the stirring cylinder 2.
S2, adjusting a rotating handle 661 below the storage bin 3 filled with natural sand, so that the adjusting slide plate 631 moves to a corresponding proportion position.
S3, adjusting a rotating handle 661 below the cement-filled bin 3, so that the adjusting slide plate 631 moves to a corresponding proportion position.
S4, the conveyer belt 4 moves to the position below the storage bin 3 filled with the natural sand, the natural sand with the corresponding proportion and weight is automatically added into the stirring cylinder 2, and meanwhile the stirring cylinder 2 mixes the natural sand with the machine-made sand.
S5, the conveyer belt 4 moves to the position below the storage bin 3 filled with cement, cement with corresponding proportion and weight is automatically added into the mixing drum 2, and meanwhile, the mixing drum 2 mixes cement, natural sand and machine-made sand.
S6, adding water with a specified volume into the stirring cylinder 2, and stirring the water by the stirring cylinder 2.
And S7, removing the stirred concrete from the stirring cylinder 2.
The powder content of the machine-made sand is less than or equal to 20 percent.
The stirring cylinder 2 is longitudinally and slidably connected above the base 1; two adding mechanisms are arranged on the base; the adding mechanism comprises a feed bin 3, a feeding component arranged at the lower part of the feed bin and a control component arranged between the feed bin and the stirring barrel.
The conveying belt 4 is movably arranged on the base 1; the conveyor belt 4 comprises a working position below one silo and an initial position in the middle of the two silos.
The conveying belt 4 is provided with a feeding end and a feeding end; the feeding end of the conveying belt 4 is positioned above the stirring cylinder 2, so that raw materials on the conveying belt 4 are conveniently fed into the stirring cylinder 2; the upper end of the stirring cylinder 2 is opened; the feeding end of the conveying belt 4 moves between the two bins 3, so that raw materials in each bin 3 can fall onto the conveying belt 4.
The conveying belt 4 is rotatably connected to the upper end of the base 1, and the rotating shaft of the conveying belt 4 is overlapped with the rotating shaft of the stirring cylinder 2; the upper end of the base 1 is fixedly connected with a swing motor 42 for driving the conveyer belt 4 to move.
The raw materials comprise natural sand and cement.
The conveyor belt 4 is provided with a crawler 41 and a crawler motor 40 for driving the crawler 41 to move; the surface of the crawler belt 41 is uniformly provided with a striker plate 411; the raw materials will be deposited between the two striker plates 411, facilitating the transportation of the raw materials by the conveyor belt 4.
A feed pipe 31 is arranged at the lower end of the storage bin 3; the feed assembly includes a feed frame 62 rotatably coupled within the feed tube 31; a material containing groove 621 is uniformly arranged on the feeding frame along the circumferential direction; a storage bin blanking port 33 which is communicated with the Rong Liaocao 621 and used for feeding raw materials into the storage tank 621 is arranged at the eccentric position of the upper end of the feeding pipe 31; the side wall of the feeding pipe 31 is provided with a discharge hole 32 for the raw materials to drop from the material tank 621 onto the conveying belt 4; the discharge port 32 and the bin blanking port 33 are not communicated with the same material containing groove 621 at the same time.
The upper end of the feeding pipe 31 is connected with a feeding baffle 61 for sealing the blanking port 33 of the stock bin in a sealing and rotating manner; the feeding baffle 61 is coaxially arranged with the feeding frame 62; the feeding baffle is provided with a feed port 611 for the raw material to pass through uniformly along the circumferential direction.
The feed baffle forward rotates the settlement angle, and a feed opening 611 communicates with feed bin blanking mouth 33, and at this moment feed baffle 61 rotates the settlement angle again, and feed opening 611 staggers with the feed bin blanking mouth, and feed baffle seals feed bin blanking mouth, and so is reciprocal, and feed baffle makes feed bin blanking mouth 33 switch between intercommunication and non-intercommunication.
The lower end of the feeding baffle 61 is coaxially and fixedly connected with a ratchet gear 612; unidirectional ratchets are uniformly arranged on the ratchet gear 612 along the circumferential direction; the conveyer belt 4 is provided with a conveyer belt pawl plate 45 which is connected with a ratchet gear 612 in a one-way transmission way and is communicated with a driving material through hole 611 and a bin blanking hole 33; the conveyer belt detent plate is provided with a plurality of first unidirectional pawls which are matched with unidirectional ratchets so as to drive the ratchet gear 612 to rotate forward by a set angle.
When the conveyor belt 4 moves from the initial position to the working position, the conveyor belt pawl plate 45 is in contact with the ratchet gear 612 and is driven, so that the ratchet gear 612 rotates by a set angle, and the feeding baffle plate moves to the feed port 611 to be communicated with the feed bin blanking port 33; the belt pawl plate 45 will not be in transmission with the ratchet gear 612 when the belt 4 is moved from the operating position to the home position.
The control assembly comprises an adjusting frame 52 which is connected with the upper end of the base 1 in a sliding way; the adjusting frame 52 is provided with a closed detent plate 522 which is connected with the detent gear 612 in a one-way transmission way and is staggered with the driving feed port 611 and the feed bin blanking port 33; the closing pawl plate 522 is provided with a plurality of second unidirectional pawls which are matched with unidirectional ratchets to drive the ratchet gear 612 to rotate forward by a set angle.
The adjusting frame 52 is in unidirectional transmission connection with the mixing drum 2, when the mixing drum 2 moves downwards, the adjusting frame 52 moves reversely, the adjusting frame 52 enables the closed detent plate 522 to move away from the detent gear 612, and the closed detent plate 522 is not transmitted with the detent gear 612; when the weight of the machine-made sand placed in the mixing drum 2 is different, the distance by which the regulating frame 52 moves is also different.
The feeding frame 62 is in transmission connection with the adjusting frame, so that the adjusting frame moves forward, and at the moment, the closing detent plate 522 can drive the detent gear 612 to rotate, and the feeding baffle 61 further rotates to the closing bin blanking port 33.
The control assembly further comprises a longitudinally arranged base connecting pipe 12 fixedly connected to the upper end of the base 1, a stirring cylinder sealing rod 23 fixedly connected to the side wall of the stirring cylinder 2 and in sealing sliding connection with the base connecting pipe 12, and a sealing positioning pipe 51 fixedly connected to the upper end of the base; the adjusting frame 52 is provided with a sealing cylinder 52 which is in sealing sliding connection with the sealing positioning pipe; the lower part of the outer wall of the base connecting pipe 12 is provided with an air outlet pipe 122 communicated with the sealing positioning pipe 51.
When the mixing drum 2 moves downwards, the mixing drum sealing rod 23 moves downwards synchronously, so that the gas in the base connecting pipe 12 is pressurized and enters the sealing positioning pipe 51 through the gas outlet pipe 122, and then the gas pressure between the sealing positioning pipe 51 and the sealing drum 52 increases, and the adjusting frame 52 is forced to move reversely.
A stirring cylinder sliding frame 21 is arranged on the side wall of the stirring cylinder 2; the upper end of the base 1 is fixedly connected with a mixing drum sliding rod 11 which is longitudinally and slidably connected with a mixing drum sliding frame 21.
The lower end of the side wall of the base connecting pipe 12 is provided with a ventilation seat 123 which enables the base connecting pipe 12 to be communicated with the outside; the upper end of the base is connected with an adjusting slide bar 55 in a sliding manner; a sealing plate 551 for sealing the ventilation seat is fixedly connected to the adjusting slide bar 55; the adjusting slide bar 55 is provided with a communication port 552 which can be communicated with the ventilation seat 123; a slide bar spring 553 for driving the sealing plate 551 to seal the ventilation seat 123 is arranged between the adjusting slide bar 55 and the base 1; the conveyor belt 4 is provided with a slide bar driving plate 43 for driving the adjusting slide bar 55 to move.
A mixing drum spring 22 for driving the mixing drum to move upwards is arranged between the mixing drum sliding frame 21 and the base 1.
When the conveyor belt 4 is in the working position, the slide bar driving plate 43 abuts against the adjusting slide bar 55, and the adjusting slide bar 55 is moved to the communication opening 552 to be communicated with the ventilation seat 123, and at this time, the up-and-down movement of the stirring cylinder 2 does not drive the adjusting frame 52 to move.
When the conveyor belt is at the initial position, the slide bar driving plate 43 is separated from the adjusting slide bar 55, the sealing plate 551 seals the ventilation seat 123, at this time, the machine-made sand with required weight is added into the mixing drum 2, the mixing drum 2 moves downwards by a corresponding distance, and then the adjusting frame 52 moves reversely by a corresponding distance.
The control assembly further comprises a reduction gear set 53 fixedly connected to the upper end of the base; a feeding rack gear 622 is coaxially arranged at the lower end of the outer wall of the feeding rack 62; the reduction gear set 53 is provided with an input gear 531 which is in meshed transmission connection with a feed rack gear 622; the adjusting frame 52 is longitudinally and slidably connected with a sliding rack 54 arranged along the sliding direction of the adjusting frame 52; the reduction gear set 53 is provided with an output gear 532 that is capable of meshing drive connection with the sliding rack.
The rotational speed of the input gear 531 is greater than the rotational speed of the output gear 532.
A rack spring for driving the sliding rack 54 to move upwards is arranged between the lower end of the sliding rack 54 and the adjusting frame 52; the upper end of the sliding rack is provided with a downward-pressing inclined plane 541 which is obliquely distributed; the conveyor belt 4 is provided with a rack lower pressure plate 47 which can abut against the pressing inclined surface to drive the sliding rack to move downwards.
When the conveyor belt 4 is in the working position, the rack lower pressing plate 47 contacts with the pressing inclined plane 541, so that the sliding rack 54 is located at the lower limit position, the sliding rack 54 is meshed with the output gear 532, the feeding rack 62 rotates, raw materials in the storage bin 3 gradually fall onto the conveyor belt 4, meanwhile, the reducing gear set 53 drives the adjusting rack 52 to move forward, the closing pawl plate 522 gradually approaches the ratchet gear 612 until the closing pawl plate 522 contacts with the ratchet gear 612 and drives the ratchet gear to rotate, finally, the feeding baffle 61 rotates to the closing storage bin blanking port 33, the adjusting rack 52 moves forward until the sliding rack 54 is separated from the output gear 532, and the rotation of the output gear 532 does not drive the adjusting rack to continue forward movement.
When the conveyer belt 4 is at the initial position, the rack lower pressing plate 47 is separated from the pressing inclined plane 541, the sliding rack 54 is at the upper limit position under the action of the rack spring, the sliding rack 54 is not meshed with the output gear 532, at this time, the stirring drum 2 moves downwards, and the reverse movement of the driving adjusting frame 52 is not hindered.
The feed assembly further includes a movable frame 63 longitudinally slidably coupled within the feed frame 62, and a screw 66 rotatably coupled within the feed tube 31 for driving the movable frame 63 longitudinally.
The rotation axis of the screw 66 coincides with the rotation axis of the feeding frame 62; a threaded sleeve 632 in threaded transmission connection with the screw 66 is arranged in the middle of the movable frame; a plurality of inclined adjusting slide plates 631 are uniformly arranged on the movable frame along the circumferential direction; an adjustment slide 631 is longitudinally and sealingly slidably connected to a receiving tank.
The space above the adjusting slide plate 631 in the Rong Liaocao 621 is a material cavity for holding raw materials, so the height of the moving frame 63 is controlled to change the volume of the material cavity, thereby changing the weight of the raw materials added into the stirring barrel and further changing the proportion among the raw materials.
A plurality of synchronous slide bars 64 are longitudinally and slidably connected to the movable frame 63; a synchronous clamping groove 662 which can be spliced with the synchronous sliding rod 64 is uniformly formed in the lower part of the screw 66 along the circumferential direction; the outer circumference of the feeding pipe 31 is longitudinally and slidably connected with a lifting driving plate 65 for driving each synchronous slide bar to longitudinally move.
The outer wall of the feeding pipe 31 is provided with a plurality of positioning sliding rails 34; the upper end of the lifting driving plate 65 is provided with a lifting sliding column 651 longitudinally and slidably connected with the positioning sliding rail 34; a strut spring 652 for driving the lifting drive plate 65 to move upward is installed between the lifting strut 651 and the positioning slide rail 34.
The outer wall of the synchronous slide bar 64 is provided with a slide bar protrusion 641 which is abutted against the upper end of the lifting driving plate 65, so that the synchronous slide bar 64 rotates relative to the lifting driving plate 65 along the circumferential direction and moves longitudinally and synchronously.
The conveyer belt 4 is provided with a synchronous lower pressing plate 44 for driving the lifting driving plate 65 to move downwards; when the conveyor belt 4 is located at the working position, the synchronous lower pressure plate 44 contacts with the lifting driving plate 65, and the lifting driving plate 65 is located at the lower limit position, at this time, the synchronous sliding rod 64 is inserted into the synchronous clamping groove 662, and the moving frame 63 is fixed relative to the screw 66 in the circumferential direction, so that at this time, the screw 66 rotates to drive the moving frame 63 and the feeding frame 62 to rotate in the circumferential direction synchronously.
When the conveyor belt is at the initial position, the synchronous lower pressure plate 44 is separated from the lifting driving plate 65, the lifting driving plate 65 is positioned at the upper limit position under the action of the strut spring 652, the synchronous slide rod 64 is separated from the synchronous clamping groove 662, and at the moment, the screw 66 rotates to drive the movable frame 63 to longitudinally move so as to adjust the material cavity.
The lower periphery of the screw 66 is provided with a turning handle 661.
The upper end of the base 1 is provided with a driving component; the driving assembly comprises a driving motor 71 and two swinging frames 72 respectively used for driving the screw 66 below the corresponding bin 3 to rotate.
The swinging frame 72 is rotatably connected to the upper end of the base 1; the swing frame 72 is coaxially and rotatably connected with a swing gear 73 in transmission connection with the driving motor 72; a driving gear 74 which can be in transmission connection with the screw 66 is rotatably connected to the eccentric position of the swing frame 72; the swing gear 73 is in transmission connection with the driving gear 74 through a synchronous belt.
The lower end of the outer wall of the screw 66 is coaxially provided with a screw gear 663 which can be meshed with the driving gear 74 for transmission connection.
A torsion spring is installed between the swing frame 72 and the base 1, wherein the driving screw gear 663 is separated from the driving gear 74.
The conveying belt 4 is provided with a driving support rod 46 for driving the swinging frame 72 to rotate; the swing frame 72 is provided with a swing abutment 721 capable of abutting against the driving abutment 46 to drive the swing frame 72 to rotate; a motor gear 711 engaged with each swing gear 73 is fixedly connected to an output shaft of the driving motor 71.
When the conveyor belt 4 is in the working position, the driving abutment 46 contacts the swing abutment 721 and moves the swing frame 72 to the engagement of the driving gear 74 with the screw gear 663.
When the conveyor belt is at the initial position, the swing frame 72 is separated from the swing abutment plate 721 by the driving abutment 46 under the action of the torsion spring, and the screw gear 663 is separated from the driving gear 74.
A longitudinally distributed dial is fixedly connected to the feed pipe 31; the dial is provided with scale marks; an indication mark pointing to the scale mark is fixedly connected to the movable frame 63.
Through the indication mark and the scale mark, operators can clearly know the current adding proportion.
The stirring cylinder 2 is rotationally connected with a stirrer; the lower end of the stirring cylinder 2 is connected with a stirring motor for driving the stirrer to rotate; the lower end of the stirring cylinder 2 is provided with a discharge port; the lower end of the stirring cylinder is rotationally connected with a baffle plate for closing the discharge opening.
When not in use, the conveyor belt 4 is at the initial position, the sealing plate 551 seals the ventilation seat 123, the sliding rack 54 is at the upper limit position, the sliding rack 54 is separated from the output gear 532, the feeding baffle 61 seals the feed bin blanking port 33, and the swing gear 73 is separated from the screw gear 663.
When the device is used, the machine-made sand with required weight is firstly added into the mixing drum 2, so that the mixing drum 2 moves downwards for a certain distance under the action of gravity of the machine-made sand, in the process, the mixing drum spring 22 contracts, the pressure in the base connecting pipe 12 increases, the pressure between the sealing positioning pipe 51 and the sealing drum 521 which are communicated with the pressure increases synchronously, and the regulating frame 52 moves reversely for a certain distance under the action of the pressure.
At the same time, the operator adjusts the addition ratio, the operator holds the rotary handle 661 and rotates it, so that the screw 66 rotates, and the feeding frame 62 moves upward or downward, so that the indication marks point to the required graduation marks, and both bins perform the same operation.
After the operation is finished, an operator presses a corresponding button, and the driving motor 71 works to drive the motor gear 711, the swing gear 73 and the driving gear 74 to rotate in sequence; meanwhile, the swing motor 42 works to drive the conveyer belt 4 to move, so that the conveyer belt 4 moves from an initial position to a working position, and the conveyer belt 4 is positioned below the storage bin 3 filled with natural sand.
In the above process, as the conveyor belt 4 moves to the working position, the slide bar driving plate 43 abuts against the adjusting slide bar 55, and drives the adjusting slide bar 55 to move to the communicating port 552 to communicate with the ventilation seat 123, so that the air in the base connecting pipe 12 is discharged from the ventilation seat 123, the rack lower pressing plate 47 abuts against the pressing inclined plane 541, so that the sliding rack 54 moves downward to engage with the output gear 532, the synchronous lower pressing plate 44 drives the lifting driving plate 65 to move downward, so that the synchronous slide bar 64 moves downward together to engage with the synchronous clamping groove, so that the screw 66 and the feeding frame 62 are circumferentially fixed relatively, the conveyor belt pawl plate 45 drives the ratchet gear 612 to rotate by a set angle, so that the communicating port 611 communicates with the bin blanking port 33, the natural sand in the bin 3 enters into the containing groove 621 communicating with the bin blanking port 33, and fills the material cavity, and drives the abutting rod 46 to abut against the swinging abutting plate 721, so that the swinging gear 73 engages with the screw gear 663, and the driving motor 71 drives the screw 66 to rotate, so that the feeding frame 62 rotates synchronously.
Along with the rotation of the feeding frame 62, the natural sand in the storage bin 3 gradually enters the material containing groove 621, and when the material containing groove 621 rotates to be opposite to the discharge hole 32, the natural sand falls onto the conveying belt 4 through the discharge hole 32, then the crawler motor 40 works to drive the crawler 41 to move, and then the natural sand is gradually fed into the stirring barrel 2.
During the rotation of the feeding frame 62, the feeding frame 62 drives the input gear 531 to rotate through the feeding frame gear 622, and the output gear 532 rotates together, so that the adjusting frame 52 moves forward under the cooperation of the sliding rack 54 and the output gear 532, and the closing detent plate 522 gradually approaches the detent gear 612.
When the closing detent plate 522 moves to contact with the detent gear 612, the closing detent plate 522 drives the detent gear 612 to rotate, and finally the detent gear 612 rotates by a set angle, so that the feeding baffle 61 rotates to the blanking port 33 of the closing stock bin, at this time, the sliding rack 54 moves to be separated from the output gear 532, the output gear 532 does not drive the adjusting frame 52 to move, and then the feeding frame 62 continues to rotate, so that natural sand in the containing groove 621 is discharged.
In the process of adding the natural sand into the stirring barrel 2, the stirring motor drives the stirrer to rotate, and the natural sand and the machine-made sand are mixed.
After a certain time of mixing, cement needs to be added into the mixing drum 2, an operator presses a corresponding button, the swing motor 42 drives the conveying belt 4 to move, so that the conveying belt 4 moves from a working position to an initial position, in the process, the slide bar driving plate 43 is separated from the adjusting slide bar 55, the sealing plate 551 seals the ventilation seat 123, the rack lower pressing plate 47 is separated from the pressing inclined plane 541, the sliding rack 54 is positioned at an upper limit position, the sliding rack 54 is separated from the output gear 532, the driving support rod 46 is separated from the swing support plate 721, the swing gear 73 is separated from the screw gear 663, the synchronous lower pressing plate 44 is separated from the lifting driving plate 65, and the synchronous slide bar 64 is separated from the synchronous clamping groove 662.
The conveyor belt 4 continues to move, then moves towards the cement-filled bin 3, and finally the conveyor belt 4 moves to the station position and is positioned right below the cement-filled bin 3, and then the above process is repeated, and the cement with the specified weight is added into the mixing drum 2, and simultaneously the mixer is used for mixing the cement.
After the completion of the mixing, water was added to the mixer drum 2 to mix the mixture into the desired concrete. The final concrete can flow out from the discharge opening below the mixing drum 2.
According to the scheme, through the control assembly, the effective time of the added raw materials can be automatically determined according to the weight of the machine-made sand added into the mixing drum 2, for example, the current adding proportion is 1:1, namely, if 100 kg of machine-made sand is arranged in the mixing drum 2, 100 kg of raw materials can be finally added into the mixing drum after the feeding baffle 61 is driven by the sealing detent plate 522 to seal the blanking port of the storage bin again (errors exist in the process, but the quality of final concrete cannot be influenced).
The up-and-down motion of the feeding frame 62 is controlled, so that the volume of the raw materials can be transported by the unit-time content trough 621 is changed, and the total weight of the raw materials finally added into the stirring barrel is changed.
Claims (10)
1. A process for preparing high-strength concrete by mixing machine-made sand and natural sand is characterized by comprising the following steps of: the method comprises the following steps:
s1, adding machine-made sand with required weight into a stirring cylinder (2);
s2, adjusting a rotating handle (661) below the storage bin (3) filled with natural sand, so that the adjusting slide plate (631) moves to a corresponding proportional position;
s3, adjusting a rotary handle (661) below the cement-filled bin (3) to enable the adjusting slide plate (631) to move to a corresponding proportional position;
s4, moving a conveying belt (4) to the position below a storage bin (3) filled with natural sand, automatically adding the natural sand with corresponding proportion and weight into a stirring cylinder (2), and simultaneously mixing the natural sand with machine-made sand by the stirring cylinder (2);
s5, the conveyer belt (4) moves to the position below a storage bin (3) filled with cement, cement with corresponding proportion and weight is automatically added into the stirring cylinder (2), and the stirring cylinder (2) mixes the cement, the natural sand and the machine-made sand;
s6, adding water with a specified volume into the stirring cylinder (2), and stirring the water by the stirring cylinder (2);
and S7, removing the stirred concrete from the stirring cylinder (2).
2. The process for preparing high-strength concrete by mixing machine-made sand and natural sand according to claim 1, which is characterized in that: the powder content of the machine-made sand is less than or equal to 20 percent.
3. The process for preparing high-strength concrete by mixing machine-made sand and natural sand according to claim 1, which is characterized in that: the stirring cylinder (2) is longitudinally and slidably connected above the base (1); two adding mechanisms are arranged on the base; the adding mechanism comprises a feed bin (3), a feeding component arranged at the lower part of the feed bin and a control component arranged between the feed bin and the stirring barrel;
the conveying belt (4) is movably arranged on the base (1); the conveyor belt (4) comprises a working position below one bin and an initial position between the two bins.
4. The process for preparing high-strength concrete by mixing machine-made sand and natural sand according to claim 1, which is characterized in that: the conveyor belt (4) is provided with a crawler belt (41) and a crawler motor (40) for driving the crawler belt (41) to move; the surface of the crawler belt (41) is uniformly provided with a striker plate (411).
5. A process for preparing high-strength concrete by mixing machine-made sand and natural sand according to claim 3, which is characterized in that: a feed pipe (31) is arranged at the lower end of the storage bin (3); the feeding assembly comprises a feeding frame (62) rotatably connected in the feeding pipe (31); a material containing groove (621) is uniformly arranged on the feeding frame along the circumferential direction; a storage bin blanking port (33) is arranged at the eccentric position of the upper end of the feeding pipe (31); a discharge hole (32) is formed in the side wall of the feed pipe (31); the discharge port (32) and the bin blanking port (33) are not communicated with the same containing groove (621) at the same time.
6. The process for preparing high-strength concrete by mixing machine-made sand and natural sand according to claim 5, which is characterized in that: the upper end of the feed pipe (31) is connected with a feed baffle (61) for sealing a feed bin blanking port (33) in a sealing and rotating manner; the feeding baffle (61) and the feeding frame (62) are coaxially arranged; and the feeding baffle is uniformly provided with feed inlets (611) for raw materials to pass through along the circumferential direction.
7. The process for preparing high-strength concrete by mixing machine-made sand and natural sand according to claim 6, which is characterized in that: the lower end of the feeding baffle (61) is coaxially and fixedly connected with a ratchet gear (612); a conveying belt pawl plate (45) which is communicated with a driving feed port (611) and a storage bin blanking port (33) and is in unidirectional transmission connection with a ratchet gear (612) is arranged on the conveying belt (4);
the control assembly comprises an adjusting frame (52) which is connected to the upper end of the base (1) in a sliding way; a closed detent plate (522) which is staggered with a driving feed port (611) and a bin blanking port (33) and is connected with the ratchet gear (612) in a one-way transmission manner is arranged on the adjusting frame (52);
the adjusting frame (52) is in one-way transmission connection with the stirring cylinder (2), when the stirring cylinder (2) moves downwards, the adjusting frame (52) moves reversely, the closed detent plate (522) moves in a direction away from the detent gear (612), and at the moment, the closed detent plate (522) is not in transmission with the detent gear (612);
the feeding frame (62) is in transmission connection with the adjusting frame, so that the adjusting frame moves forward, and the closing pawl plate (522) can drive the ratchet gear (612) to rotate.
8. The process for preparing high-strength concrete by mixing machine-made sand and natural sand according to claim 5, which is characterized in that: the feeding assembly further comprises a moving frame (63) longitudinally and slidably connected in the feeding frame (62), and a screw (66) rotationally connected in the feeding pipe (31) and driving the moving frame (63) to longitudinally move;
a plurality of obliquely arranged adjusting slide plates (631) are uniformly arranged on the movable frame along the circumferential direction; an adjusting slide plate (631) is longitudinally and hermetically connected in the material containing groove.
9. The process for preparing high-strength concrete by mixing machine-made sand and natural sand according to claim 8, which is characterized in that: a plurality of synchronous sliding rods (64) are longitudinally and slidably connected to the movable frame (63); a synchronous clamping groove (662) which can be spliced with the synchronous sliding rod (64) is uniformly formed in the lower part of the screw rod (66) along the circumferential direction; the periphery of the feeding pipe (31) is longitudinally and slidably connected with a lifting driving plate (65) for driving each synchronous slide bar to longitudinally move;
the conveyer belt (4) is provided with a synchronous lower pressing plate (44) for driving the lifting driving plate (65) to move downwards; when the conveyer belt is located initial position, synchronous holding down plate (44) and lift drive board (65) separation, lift drive board (65) are located upper limit position under the effect of traveller spring (652), and synchronous slide bar (64) and synchronous draw-in groove (662) separation, and screw rod (66) rotate at this moment and will drive and remove frame (63) longitudinal movement, adjusts the material chamber.
10. The process for preparing high-strength concrete by mixing machine-made sand and natural sand according to claim 9, which is characterized in that: the upper end of the base (1) is provided with a driving component; the driving assembly comprises a driving motor (71) and two swinging frames (72) respectively used for driving the screw rods (66) below the corresponding storage bins (3) to rotate;
the swinging frame (72) is rotatably connected to the upper end of the base (1); the swing frame (72) is coaxially and rotatably connected with a swing gear (73) in transmission connection with the driving motor (72); a driving gear (74) which can be in transmission connection with the screw (66) is rotationally connected to the eccentric position of the swing frame (72); the swing gear (73) is in transmission connection with the driving gear (74) through a synchronous belt;
the lower end of the outer wall of the screw (66) is coaxially provided with a screw gear (663) which can be meshed with the driving gear (74) in transmission connection.
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| CN202310696123.2A CN116587431B (en) | 2023-06-13 | 2023-06-13 | Machine-made sand natural sand mixing preparation high-strength concrete |
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| CN206633230U (en) * | 2017-01-24 | 2017-11-14 | 刘云 | A kind of full-automatic mixer |
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