CN219445542U - Concrete mixer for laboratory - Google Patents
Concrete mixer for laboratory Download PDFInfo
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- CN219445542U CN219445542U CN202222967127.3U CN202222967127U CN219445542U CN 219445542 U CN219445542 U CN 219445542U CN 202222967127 U CN202222967127 U CN 202222967127U CN 219445542 U CN219445542 U CN 219445542U
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- 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
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Abstract
The utility model discloses a concrete mixer for a laboratory, which comprises: the bottom end of each proportioning bin is provided with a switch valve; the metering bin is arranged below the plurality of proportioning bins and is used for receiving the baits of the plurality of proportioning bins and metering, and the bottom end of the metering bin is also provided with a switch valve; the stirring machine is horizontally arranged in a stirring bin and is positioned below the metering bin, and a feeding hole is formed in the stirring bin and is used for receiving the discharging of the metering bin. The utility model has the advantages of simple structure matching, simple operation, simple and convenient use, accurate measurement and high working efficiency, and the physical index of the concrete which is prepared by trial mixing is very similar to that of the concrete which is prepared by the mixing station, thus achieving better mixing effect.
Description
Technical Field
The utility model relates to the technical field of engineering test equipment. More particularly, the present utility model relates to a concrete mixer for laboratory use.
Background
In the engineering test industry of construction enterprises in China, the configuration work of the engineering concrete mixing ratio test still maintains the original working method, materials are weighed and mixed manually according to the calculated amount, and the whole process is completed manually by manpower, so that the phenomena of high labor intensity, low working efficiency and poor stirring effect are formed. Or the manual weighing and metering are matched with small-sized stirrer equipment for stirring, and the problems of high labor intensity and poor stirring effect still exist.
The application number is 2021219175535, and the name is concrete proportioning device for concrete block, discloses setting up the feed bucket to set up metering device to every feed bucket, increase metering device quantity. Therefore, how to develop a few metering devices and accurately meter the concrete mixer for the laboratory is a problem which needs to be solved at present.
Disclosure of Invention
It is an object of the present utility model to solve at least the above problems and to provide at least the advantages to be described later.
The utility model also aims to provide a concrete mixer for a laboratory, which adopts a measuring bin, each material can be measured separately in sequence, and the peeling and the accumulation measurement are completed, so that the number of measuring bins is reduced, and the use number of measuring sensors is reduced.
To achieve these objects and other advantages and in accordance with the purpose of the utility model, there is provided a concrete mixer for a laboratory, comprising:
the bottom end of each proportioning bin is provided with a switch valve;
the metering bin is arranged below the plurality of proportioning bins and is used for receiving the baits of the plurality of proportioning bins and metering, and the bottom end of the metering bin is also provided with a switch valve;
the stirring machine is horizontally arranged in a stirring bin and is positioned below the metering bin, and a feeding hole is formed in the stirring bin and is used for receiving the discharging of the metering bin.
Preferably, the multiple proportioning bins are divided into a powder proportioning bin and a stone proportioning bin according to the material containing types, the on-off valve of the powder proportioning bin is an electromagnetic butterfly valve, and the on-off valve of the stone proportioning bin and the on-off valve of the metering bin all comprise:
the arc bin gate is hinged to the bottom end of the stone proportioning bin/metering bin;
and one end of the cylinder is hinged to the outer side surface of the stone proportioning bin/metering bin, the other end of the cylinder is hinged to one side of the arc bin gate, so that the cylinder stretches to drive the arc bin gate to rotate and be positioned at the bottom end of the stone proportioning bin/metering bin, the discharge port of the stone proportioning bin/metering bin is closed, the bottom end of the stone proportioning bin/metering bin, which drives the arc bin gate to rotate and be far away from the stone proportioning bin/metering bin, is shortened, and the discharge port of the stone proportioning bin/metering bin is opened.
Preferably, the method further comprises:
an air compressor;
a main pipe communicated with the air compressor exhaust pipe;
and one end of each branch pipeline is communicated with the main pipeline, the other end of each branch pipeline is communicated with the corresponding cylinders one by one, and each branch pipeline is provided with an electromagnetic valve.
Preferably, the device further comprises a frame, and the proportioning bin is fixed on the frame.
Preferably, the metering bin is provided with at least 3 metering hanging rod assemblies at intervals along the circumferential direction, and each metering hanging rod assembly comprises:
the top end of the upper rod is fixed on the frame;
the metering sensor is fixedly arranged at the bottom end of the upper rod;
the lower rod is fixedly arranged below the metering sensor, and the bottom end of the lower rod is fixedly connected with the metering bin so as to weigh the metering bin through the metering sensor.
Preferably, the device further comprises a dustproof funnel, wherein the upper part of the dustproof funnel is in an inverted quadrangular frustum pyramid shape, and the dustproof funnel is arranged between the metering bin and the stirrer to receive the discharging of the metering bin and guide the discharging into the stirrer.
Preferably, the mixer is mounted on the walking bracket, wherein the frame is arranged to enable the walking bracket to drive the mixer to be located below the metering bin or away from the frame.
Preferably, the mixer comprises:
the stirring bin is rotatably erected on the walking bracket, wherein a positioning groove is formed in the outer side face of the stirring bin and comprises a first positioning groove and a second positioning groove, a plug pin is arranged on the walking bracket in a matched mode with the positioning groove, when the plug pin is inserted into the first positioning groove, the feeding port is located right above the stirring bin and used for receiving the discharging of the metering bin, and when the plug pin is inserted into the second positioning groove, the feeding port is rotatably located in the middle or middle lower portion of the stirring bin;
the stirring shaft is rotatably arranged in the stirring bin, and one end of the stirring shaft penetrates out of the stirring bin, wherein stirring blades are arranged on the stirring shaft;
and the motor is supported on the walking bracket, the output end of the motor is fixedly connected with the penetrating end of the stirring shaft, and the stirring shaft is driven to rotate by starting the motor.
Preferably, the stirring blade comprises two rows of paddles which are arranged at equal intervals along the circumferential direction of the stirring shaft, each row of paddles comprises a plurality of paddles which are arranged at intervals, and each paddle comprises a V-shaped stirring arm and a scraping blade which is arranged on the end face of the stirring rod;
wherein the scraping range of all scraping blades on the inner wall of the stirring bin covers the inner wall of the stirring bin.
Preferably, the control system is connected with the bin gate butterfly valve, the electromagnetic valve, the air compressor and the metering sensor and used for controlling the opening/closing of the air compressor, the bin gate butterfly valve and the electromagnetic valve according to the design weight and the data of the metering sensor.
The utility model at least comprises the following beneficial effects:
the structure is matched simply, the switch is flexible, the use is convenient, the metering is accurate, the manual investment is reduced, the labor intensity is reduced, the working efficiency is improved, and the physical indexes of the concrete which are mixed by trial and are very close to those of the concrete which are mixed by the mixing station, namely, the substantial effect of reducing the cost and enhancing the efficiency is realized, and the concrete structure is as follows:
each material is measured independently in sequence by adopting a measuring bin, and the peeling and accumulated measurement are completed, so that the number of measuring bins is reduced, and the use number of measuring sensors is reduced;
the blade of the stirrer is changed from the original single spiral blade to a double-blade scraping blade (double-row blade), so that the stirring effect is improved.
Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.
Drawings
FIG. 1 is a schematic structural view of a concrete mixer for laboratory according to one embodiment of the present utility model;
FIG. 2 is a schematic structural view of a concrete mixer for laboratory according to one embodiment of the present utility model;
fig. 3 is a top view of the proportioning bin according to one embodiment of the utility model;
FIG. 4 is a top view of the metering bin according to one embodiment of the utility model;
FIG. 5 is a schematic structural view of the stirring bin according to one embodiment of the present utility model;
FIG. 6 is a schematic structural view of the stirring bin according to one embodiment of the present utility model;
fig. 7 is an enlarged schematic view of the portion a of fig. 1 according to the present utility model.
The reference numerals specifically are: a frame 1; a powder proportioning bin 2; an electromagnetic butterfly valve 20; a stone proportioning bin 3; an arc-shaped bin gate 30; a cylinder 31; a metering bin 4; an upper rod 40; a metering sensor 41; a lower rod 42; a stirrer 5; a stirring bin 50; a feed inlet 51; a feed channel 52; a stirring shaft 53; stirring blade 54; a stirring rod 55; a wiper blade 56; a motor 57; a positioning groove 6; a plug pin 7; a positioning tube 70; a pin 71; a connecting rod 72; a pedal 73; a dust-proof funnel 8; a walking bracket 9.
Detailed Description
The present utility model is described in further detail below with reference to the drawings to enable those skilled in the art to practice the utility model by referring to the description.
It will be understood that terms, such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
As shown in fig. 1 to 4, the present utility model provides a concrete mixer for a laboratory, comprising:
the bottom end of each proportioning bin is provided with a switch valve;
the metering bin 4 is arranged below the plurality of proportioning bins and is used for receiving and metering the baits of the plurality of proportioning bins, wherein the bottom end of the metering bin 4 is also provided with a switch valve, and the bin body capacity of the metering bin 4 can be preferably set to be 50L so as to meet the requirement of continuously stirring the material quantity of two-disc test;
the stirring machine 5 is horizontally arranged in a stirring bin 50 and is positioned below the metering bin 4, and a feed inlet 51 is formed in the stirring bin 50 and is used for receiving the discharging of the metering bin 4.
In the above technical solution, the number of proportioning bins in the plurality of proportioning bins is set according to actual proportioning requirements, at present, preferably 6 proportioning bins are set, as shown in a top view of 6 proportioning bins after being installed in fig. 3, the 6 proportioning bins are sequentially arranged adjacently, the layout is compact, in one specific embodiment, three-level proportioning stones, sand, cement and fly ash are respectively stored in the 6 proportioning bins, each proportioning bin is in an inverted (with a large upper opening and a small lower opening) quadrangular frustum shape, the bottom end of each proportioning bin is penetrated and arranged to form a discharge hole, and a switch valve is arranged at the discharge hole of each proportioning bin and used for opening the discharge hole of each proportioning bin when being opened and closing the discharge hole of each proportioning bin when being closed;
the metering bin 4 is preferably arranged in an inverted quadrangular frustum pyramid shape, the bottom end of the metering bin is penetrated to form a discharge hole, the discharge hole of the metering bin 4 is provided with a switch valve for opening and closing the discharge hole of the metering bin when the metering bin is closed;
the mixer 5 is located measurement storehouse 4 below, feed inlet 51 has been seted up on stirring storehouse 50 top, feed inlet 51 circumference upwards extends and forms the fender that encloses, and cooperation feed inlet 51 forms feed channel 52, in the use, includes following steps:
s1, adding corresponding materials into each proportioning bin;
s2, sequentially opening proportioning bins according to a proportioning meter, and metering through a metering bin 4, wherein the following steps are as follows: for any proportioning bin, opening the proportioning bin, counting the initial weight and the real-time weight measured by the metering bin 4, and closing the proportioning bin when the initial weight is subtracted from the real-time weight to be the proportioning weight of the proportioning bin, wherein if the metering device of the metering bin 4 has the peeling and zeroing functions, the initial weight can be set to be zero;
s3, when all materials are completely metered, a discharge hole of a metering bin 4 is opened, so that the materials are led into a stirrer 5 and stirred by the stirrer 5; by adopting the technical scheme, the concrete mixer is simple in structure, simple to operate, convenient to use, accurate in metering, reduced in labor investment, reduced in labor intensity and improved in working efficiency, and the physical indexes of the concrete to be mixed in trial-mix are very close to those of the concrete to be mixed in the mixing station, namely, a better mixing effect is achieved, and further, one metering bin 4 is adopted, so that the number of the metering bins 4 is reduced, and the use number of the metering sensors 41 is reduced.
In another technical scheme, a plurality of proportioning bins are divided into a powder proportioning bin 2 and a stone proportioning bin 3 according to the material containing types;
the on-off valve of the powder proportioning bin 2 is an electromagnetic butterfly valve 20, and the on-off valves of the stone proportioning bin 3 and the metering bin 4 respectively comprise:
the arc-shaped bin gate 30 is hinged to the bottom end of the stone proportioning bin 3/metering bin 4, specifically, the arc-shaped bin gate 30 is a strip-shaped arc-shaped bin gate 30 body, an arc extends along the width direction of the plate body, the arc-shaped bin gate 30 extends upwards along the two ends of the length direction and is provided with hanging plates, a pair of fixed plates are arranged at equal intervals on the outer sides of the stone proportioning bin 3/metering bin 4, the hanging plates are in one-to-one correspondence with the fixed plates, and the hanging plates are hinged to the fixed plates, so that the arc-shaped bin gate 30 is hinged to the bottom end of the stone proportioning bin 3/metering bin 4 to rotatably open/close corresponding discharge holes;
and one end of the air cylinder 31 is hinged to the outer side surface of the stone proportioning bin 3/metering bin 4, the other end of the air cylinder is hinged to one side (one side along the width direction) of the arc-shaped bin gate 30, so that the arc-shaped bin gate 30 is driven to rotate to be positioned at the bottom end of the stone proportioning bin 3/metering bin 4 by extension, the discharge hole of the stone proportioning bin 3/metering bin 4 is closed, the bottom end of the stone proportioning bin 3/metering bin 4, which is driven to rotate to be far away from the arc-shaped bin gate 30, is shortened, and the discharge hole of the stone proportioning bin 3/metering bin 4 is opened. In the above technical scheme, the powder proportioning bin 2 is usually used for storing cement, fly ash and other ash-shaped materials, the blanking of the type of materials can be controlled to be on-off through the electromagnetic butterfly valve 20, the stone proportioning bin 3 is usually used for storing gravel, sand and other granular materials, the blanking of the type of materials can not be effectively controlled to be on-off through the electromagnetic butterfly valve 20, when the air cylinder 31 is in an extending state (extending to a set length), the arc-shaped bin gate 30 is driven to rotate and is positioned at the bottom end of the stone proportioning bin 3/metering bin 4, the discharge port of the stone proportioning bin 3/metering bin 4 is closed, the arc-shaped bin gate 30 is driven to rotate and is far away from the bottom end of the stone proportioning bin 3/metering bin 4, and the discharge port of the stone proportioning bin 3/metering bin 4 is opened. By adopting the scheme, the opening/closing of the arc-shaped bin gate is controlled through the electromagnetic butterfly valve 20 and the air cylinder 31 respectively, so that the storage and the lowering of materials are realized, and the convenience of opening the arc-shaped bin gate is improved.
In another technical scheme, the method further comprises the following steps:
an air compressor;
a main pipe communicated with the air compressor exhaust pipe;
and one ends of the branch pipes are communicated with the main pipeline, the other ends of the branch pipes are communicated with the cylinders 31 in one-to-one correspondence, and each branch pipe is provided with an electromagnetic valve. In the technical scheme, the small-sized proportioning bins are arranged, different switching valves are arranged according to the types of materials contained in the proportioning bins, and the switching valves can be automatically controlled to be opened/closed through the control system. In the use process, the work of the air cylinders 31 is controlled by controlling the opening/closing of the air compressor and the electromagnetic valve, and by adopting the scheme, the single air compressor realizes the respective control of the plurality of air cylinders 31 through the matching arrangement of the main pipeline, the branch pipeline and the electromagnetic valve.
In another technical scheme, the concrete mixer for the laboratory further comprises a frame 1, and the proportioning bin is fixed on the frame 1. With this scheme, the frame 1 is formed by welding channel steel and is used for providing positioning and supporting of a proportioning bin, the supporting of each element is provided through the arrangement of the frame 1, and in order to ensure the stability of the whole device, the bottom end of the frame 1 is preferably fixed with the ground.
In another technical solution, the measuring chambers 4 are provided with at least 3 measuring suspension rod assemblies, preferably 3 measuring suspension rod assemblies, along the circumferential direction at intervals, so as to form stable suspension supports for the measuring chambers 4, and each measuring suspension rod assembly comprises:
an upper rod 40, the top end of which is fixed to the frame 1;
a measuring sensor 41 fixedly arranged at the bottom end of the upper rod 40;
the lower rod 42 is fixedly arranged below the metering sensor 41, and the bottom end of the lower rod 42 is fixedly connected with the metering bin 4 so as to weigh the metering bin 4 through the metering sensor 41. With this arrangement, positioning of the metering bin 4 is achieved by way of the cooperation of the plurality of metering suspension rod assemblies, and metering data is obtained in real time by the metering sensor 41.
In another technical scheme, the concrete mixer for the laboratory further comprises a dustproof funnel 8, the upper portion of the dustproof funnel is in an inverted quadrangular frustum pyramid shape (the upper opening is large, the lower opening is small), the lower portion of the dustproof funnel is in a cuboid shape, the dustproof funnel 8 is arranged between the metering bin 4 and the mixer 5 to form a connecting channel between the metering bin 4 and the mixer 5, the top end height of the dustproof funnel 8 is set to be slightly higher than the top end height of the feeding channel 52 (when being vertically arranged) so as to accept the discharging of the metering bin 4 and guide the metering bin into the mixer 5. By adopting the scheme, the metered materials are directly put into the stirring bin 50 of the stirrer 5 through the dustproof hopper 8, the material is convenient and quick to convey, the dust is prevented from spreading everywhere during discharging, and the indoor working environment is ensured.
In another technical scheme, the concrete mixer for the laboratory further comprises a walking bracket 9, and the mixer 5 is mounted on the walking bracket 9, wherein the frame 1 is arranged to enable the walking bracket 9 to drive the mixer 5 to be located below the metering bin 4 or away from the frame 1. By adopting the scheme, the walking bracket 9 is a roller with a tire, is favorable for moving positions, the tire can be positioned and arranged in the using process, and the whole walking bracket 9 (comprising each element arranged on the walking bracket) can freely penetrate into or out of the frame 1, so that the walking bracket is convenient for penetrating into and stirring concrete, and penetrating out for cleaning the stirring bin 50, overhauling the stirring machine 5 and other operations.
In another embodiment, as shown in fig. 5 to 7, the mixer 5 includes:
the stirring bin 50 is rotatably arranged on the walking bracket 9, specifically, one end of the stirring bin 50 along the axial direction is coaxially fixed with a supporting rod, the supporting rod is connected with the walking bracket 9 through a bearing, the other end of the stirring bin 50 along the axial direction is coaxially fixed with a branch pipe, the branch pipe is connected with the walking bracket 9 through a bearing, so as to realize rotatable erection of the stirring bin 50 relative to the walking bracket 9, wherein a positioning groove 6 is arranged on the outer side surface of the stirring bin 50, the positioning groove 6 is not communicated with the stirring bin 50, can be a groove body protruding out of the stirring bin 50, the positioning groove 6 comprises a first positioning groove 6 and a second positioning groove 6, the pin 7 is arranged on the walking bracket 9 in a matched manner with the positioning groove 6, the pin 7 specifically comprises a positioning pipe 70 arranged on the walking bracket 9, a pin shaft 71 movably arranged in the positioning pipe 70, when the positioning pipe 70 and the first positioning groove 6 are coaxially arranged, the control pin 7 is inserted into the first positioning groove 6, at this time, the feeding port 51 (the feeding channel 52) is positioned right above the stirring bin 50 and is used for receiving the feeding of the metering bin 4, when the positioning pipe 70 and the second positioning groove 6 are coaxially arranged, the control pin 7 is inserted into the second positioning groove 6, at this time, the feeding port 51 is rotationally positioned in the middle part or the middle lower part of the stirring bin 50, namely, the feeding port 51 is controlled to rotate at least 90 degrees from the first positioning groove 6 to the second positioning groove 6;
the stirring shaft 53 is rotatably arranged in the stirring bin 50, one end of the stirring shaft 53 penetrates out of the stirring bin 50, specifically, one end of the stirring shaft 53, which is close to the supporting rod, is rotatably connected with the stirring bin 50, one end of the stirring shaft 53, which is close to the branch pipe, is rotatably connected with the branch pipe and penetrates out of the branch pipe, and stirring blades 54 are arranged on the stirring shaft 53;
the motor 57 is supported on the walking bracket 9, and the output end of the motor is fixedly connected with the penetrating end of the stirring shaft 53 to drive the stirring shaft 53 to rotate. In the above technical scheme, in order to facilitate the plug of the pin 71, one end of the pin 71 away from the stirring bin 50 is hinged with a connecting rod 72, the connecting rod is connected to the walking bracket 9 by a torsion spring, the bottom end of the connecting rod extends to have a pedal 73, when the pedal 73 provides a downward acting force, the pin 71 moves along the direction away from the stirring bin 50, when no external force acts, the pin 71 can be inserted into the first positioning groove 6 or the second positioning groove 6 under the driving of the torsion spring, the positioning groove 6 and the positioning tube 70 are arranged to satisfy the movement of the pin 71, and in the use process, the step S3 is specifically as follows: when all materials are completely metered, the control bolt 7 is inserted into the first positioning groove 6, and the discharge hole of the metering bin 4 is opened to lead the materials into the stirrer 5 and stir the materials by the stirrer 5;
the step S4 is also included, after the stirring is completed, the control bolt 7 is inserted into the second positioning groove 6, at the moment, the collecting device is arranged at the feeding channel 52, and the motor 57 is controlled to move until the materials are completely led out to the collecting device; by adopting the scheme, the same feeding channel 52 is combined with the positioning groove 6 and the pin shaft 71, and then the motor 57 is combined for inching operation, so that feeding, stirring and discharging are realized.
In another technical solution, the stirring blade 54 includes two rows of paddles disposed at equal intervals along the circumferential direction of the stirring shaft, which are defined as a row a of paddles and a row B of paddles, each row of paddles includes a plurality of paddles disposed at intervals along the length direction of the stirring shaft 53, the two rows of paddles are disposed in a staggered manner, that is, one row B of paddles is disposed between any two adjacent paddles in the row a of paddles, one row a of paddles is disposed between any two adjacent paddles in the row B of paddles, each paddle includes a V-shaped stirring arm 55, and a scraping blade 56 disposed on the end surface of the stirring rod 55, and the distance between the scraping blade 56 and the inner side wall of the stirring layer is not greater than 5mm;
wherein, the scraping range of all the scraping blades 56 on the inner wall of the stirring bin 50 covers the inner wall of the stirring bin 50, that is, each scraping blade 56 forms a scraping track, the scraping track of all the scraping blades 56 covers the inner wall (inner part along the circumferential direction) of the stirring bin 50, and the preferred scraping track is not repeated. By adopting the scheme, the single spiral blade of the original stirring shaft 53 is improved, and the stirring shaft 53 is changed into a double-blade scraping blade 56 type stirring shaft 53, so that concrete is mixed more fully, the effect of on-site stirring of a mixing station is closer, and the stirring quality is better.
In another technical scheme, the concrete mixer for the laboratory further comprises: and the control system is connected with the bin gate butterfly valve, the electromagnetic valve, the air compressor and the metering sensor 41 and is used for controlling the opening/closing of the air compressor, the bin gate butterfly valve and the electromagnetic valve according to the design weight and the data of the metering sensor 41. Specifically, in the use process, the method comprises the following steps:
s0, storing the current batching demand (batching table) in a control system;
s1, adding corresponding materials into each proportioning bin;
s2, a control system sequentially opens proportioning bins according to the proportioning requirements and a set control sequence, and measures the proportioning bins through a metering bin 4, and the method is specifically as follows:
for a powder proportioning bin, peeling and zeroing the current metering sensor 41, opening an electromagnetic butterfly valve 20 corresponding to the proportioning bin, acquiring metering data of the metering sensor 41 in real time, judging whether the metering data is equal to a corresponding preset threshold value, and if so, closing the electromagnetic butterfly valve 20 corresponding to the powder proportioning bin 2;
for the stone proportioning bin 3, peeling and zeroing the current metering sensor 41, opening the air compressor, acquiring metering data of the metering sensor 41 in real time, judging whether the metering data is equal to a corresponding preset threshold value, and if so, closing the electromagnetic valve corresponding to the stone proportioning bin 3 and closing the air compressor;
the method is analogically to the above method until the blanking of the proportioning bin is complete;
s3, when all materials are completely metered, a control bolt 7 is inserted into the first positioning groove 6, the air compressor is opened, the electromagnetic valve corresponding to the metering bin 4 is opened until the discharging is complete, and the electromagnetic valve of the metering bin 4 is closed, and the air compressor is closed;
starting a motor 57 to drive a stirring shaft 53 to work so as to stir concrete;
s4, a control bolt 7 is inserted into the second positioning groove 6, a collecting device is arranged at the feeding channel 52, and the motor 57 is controlled to move until the materials are completely guided out of the collecting device; by adopting the scheme, the automatic switching control is realized on the discharge hole of the proportioning bin, the proportioning bin finishes discharging according to the set value, and all the materials are accumulated and stored in the metering scale bin, so that automatic metering is realized, the used material capacity cylinders are not required to be weighed one by one on the electronic scale each time manually, the labor intensity is reduced, and the working efficiency is improved.
The number of equipment and the scale of processing described herein are intended to simplify the description of the present utility model. The use, modification and variation of the laboratory concrete mixer of the present utility model will be apparent to those skilled in the art.
Although embodiments of the present utility model have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the utility model would be readily apparent to those skilled in the art, and accordingly, the utility model is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.
Claims (10)
1. Laboratory concrete mixer, characterized by comprising:
the bottom end of each proportioning bin is provided with a switch valve;
the metering bin is arranged below the plurality of proportioning bins and is used for receiving the baits of the plurality of proportioning bins and metering, and the bottom end of the metering bin is also provided with a switch valve;
the stirring machine is horizontally arranged in a stirring bin and is positioned below the metering bin, and a feeding hole is formed in the stirring bin and is used for receiving the discharging of the metering bin.
2. The concrete mixer for laboratory of claim 1, wherein the plurality of proportioning bins are divided into a powder proportioning bin and a stone proportioning bin according to the types of materials, the on-off valve of the powder proportioning bin is an electromagnetic butterfly valve, and the on-off valves of the stone proportioning bin and the metering bin comprise:
the arc bin gate is hinged to the bottom end of the stone proportioning bin/metering bin;
and one end of the cylinder is hinged to the outer side surface of the stone proportioning bin/metering bin, the other end of the cylinder is hinged to one side of the arc bin gate, so that the cylinder stretches to drive the arc bin gate to rotate and be positioned at the bottom end of the stone proportioning bin/metering bin, the discharge port of the stone proportioning bin/metering bin is closed, the bottom end of the stone proportioning bin/metering bin, which drives the arc bin gate to rotate and be far away from the stone proportioning bin/metering bin, is shortened, and the discharge port of the stone proportioning bin/metering bin is opened.
3. The concrete mixer for laboratory of claim 2, further comprising:
an air compressor;
a main pipe communicated with the air compressor exhaust pipe;
and one end of each branch pipeline is communicated with the main pipeline, the other end of each branch pipeline is communicated with the corresponding cylinders one by one, and each branch pipeline is provided with an electromagnetic valve.
4. The laboratory concrete mixer of claim 1 further comprising a frame, said proportioning bins being secured to said frame.
5. The concrete mixer for laboratory of claim 4, wherein the metering bins are circumferentially spaced apart by at least 3 metering hanger bar assemblies, each metering hanger bar assembly comprising:
the top end of the upper rod is fixed on the frame;
the metering sensor is fixedly arranged at the bottom end of the upper rod;
the lower rod is fixedly arranged below the metering sensor, and the bottom end of the lower rod is fixedly connected with the metering bin so as to weigh the metering bin through the metering sensor.
6. The concrete mixer for laboratory as set forth in claim 5, further comprising a dust hopper having an upside-down quadrangular frustum pyramid-shaped upper portion, said dust hopper being disposed between said measuring bin and said mixer for receiving the material from the measuring bin and guiding the material into the mixer.
7. The concrete mixer for a laboratory of claim 4, further comprising a walking bracket, said mixer being mounted on said walking bracket, wherein said frame is configured such that said walking bracket drives said mixer under a metering bin or away from said frame.
8. The concrete mixer for laboratory of claim 7, wherein said mixer comprises:
the stirring bin is rotatably erected on the walking bracket, wherein a positioning groove is formed in the outer side face of the stirring bin and comprises a first positioning groove and a second positioning groove, a bolt is arranged on the walking bracket in a matched mode with the positioning groove, when the bolt is inserted into the first positioning groove, the feeding port is located right above the stirring bin and used for receiving the discharging of the metering bin, and when the bolt is inserted into the second positioning groove, the feeding port is rotatably located in the middle or in the lower portion of the stirring bin;
the stirring shaft is rotatably arranged in the stirring bin, and one end of the stirring shaft penetrates out of the stirring bin, wherein stirring blades are arranged on the stirring shaft;
and the motor is supported on the walking bracket, and the output end of the motor is fixedly connected with the penetrating end of the stirring shaft so as to drive the stirring shaft to rotate.
9. The concrete mixer for laboratory of claim 8, wherein the mixing blades comprise two rows of paddles equally spaced circumferentially along the mixing shaft, each row of paddles comprising a plurality of paddles spaced apart, each paddle comprising a V-shaped mixing arm, a wiper blade provided on an end face of the mixing shaft;
wherein the scraping range of all scraping blades on the inner wall of the stirring bin covers the inner wall of the stirring bin.
10. The concrete mixing machine for laboratory according to claim 8, further comprising a control system connected to the door butterfly valve, the solenoid valve, the air compressor, the metering sensor for controlling the opening/closing of the air compressor and the door butterfly valve, the solenoid valve according to the data of the design weight and the metering sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222967127.3U CN219445542U (en) | 2022-11-08 | 2022-11-08 | Concrete mixer for laboratory |
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