CN115739275A - Automatic flour mill - Google Patents
Automatic flour mill Download PDFInfo
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- CN115739275A CN115739275A CN202211357205.6A CN202211357205A CN115739275A CN 115739275 A CN115739275 A CN 115739275A CN 202211357205 A CN202211357205 A CN 202211357205A CN 115739275 A CN115739275 A CN 115739275A
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- 235000013312 flour Nutrition 0.000 title claims abstract description 82
- 238000005303 weighing Methods 0.000 claims abstract description 185
- 239000000843 powder Substances 0.000 claims abstract description 150
- 239000000463 material Substances 0.000 claims abstract description 101
- 238000005070 sampling Methods 0.000 claims abstract description 93
- 238000000227 grinding Methods 0.000 claims abstract description 49
- 238000001514 detection method Methods 0.000 claims abstract description 31
- 238000004458 analytical method Methods 0.000 claims abstract description 22
- 238000007790 scraping Methods 0.000 claims abstract description 22
- 238000007873 sieving Methods 0.000 claims description 100
- 238000007599 discharging Methods 0.000 claims description 48
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- 238000004364 calculation method Methods 0.000 claims description 15
- 238000003801 milling Methods 0.000 claims description 15
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- 238000010168 coupling process Methods 0.000 claims description 6
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- 235000004237 Crocus Nutrition 0.000 description 9
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- 230000009471 action Effects 0.000 description 2
- 235000013339 cereals Nutrition 0.000 description 2
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Abstract
The invention provides an automatic flour mill, which belongs to the technical field of flour mills and comprises a flour mill, a sampling device, a control system, an analysis device and a roll spacing adjusting assembly, wherein the sampling device is provided with a sampling assembly suitable for sampling a material ground by a grinding roll, the control system is internally provided with a scraping rate/powder taking rate calculating module and a roll spacing adjusting module, the analysis device is provided with a plurality of groups of weighing assemblies and detection sieves which are connected with the control system, the weighing assemblies are suitable for weighing the total weight of the sampled material and the weight after screening and filtering, the detection sieves the sampled material, the scraping rate/powder taking rate calculating module calculates the scraping rate/powder taking rate according to two weighing results, the roll spacing adjusting assembly is connected with the grinding roll and is suitable for adjusting an adjusting rod of the roll spacing, and the roll spacing adjusting module is suitable for controlling the operation of the adjusting rod according to the scraping rate/powder taking rate. The automatic flour mill provided by the invention has the technical effects of realizing automatic sampling of milled powder, analyzing the peeling rate/powder taking rate, adjusting the distance between grinding rollers and automatically operating the flour mill.
Description
Technical Field
The invention belongs to the technical field of flour mills, and particularly relates to an automatic flour mill.
Background
The milling machine is a mechanical device for milling grains such as wheat into flour, and comprises at least one pair of grinding rollers, and the degree of milling the grains into powder by each pair of grinding rollers is realized by adjusting the distance between the grinding rollers. In order to ensure the production quality, the ground material needs to be sampled on line, and items such as the peeling rate/powder taking rate, the granularity and the like are analyzed, so that the equipment state and the grinding quality can be known in time.
Flour process engineer (for short for flour mill) is responsible for milling machine sample, analysis work in the crocus workshop, samples in the grinding roller below through the manual sampling mode, then judges the degree of crocus through feeling to further adjust the interval of grinding roller, there is certain danger and inconvenience in this kind of sample, analysis crocus degree and a series of operations of roll spacing, and can cause the influence to the flour health.
Disclosure of Invention
The invention aims to provide an automatic flour mill, and aims to solve the technical problems that manual operation of flour mill sampling, flour milling degree analysis and roller spacing adjustment in the prior art is dangerous and inconvenient to operate.
In order to achieve the purpose, the invention adopts the technical scheme that: there is provided an automatic mill comprising:
a pulverizer having at least one pair of grinding rollers with adjustable roller spacing;
the sampling device is arranged below the grinding roller and is provided with a sampling assembly suitable for sampling the material ground by the grinding roller;
the control system is internally provided with a scraping rate/powder taking rate calculation module and a roller spacing adjusting module;
the analysis device is provided with a plurality of groups of weighing components and detection sieves and is connected with the control system, at least one group of weighing components is suitable for weighing the total weight of the sampled materials, the detection sieves are suitable for sieving the materials after weighing, at least one group of weighing components is suitable for weighing the materials filtered by the detection sieves, and the peeling rate/powder taking rate calculation module calculates the peeling rate/powder taking rate according to the weighing results of two times; and
the roller spacing adjusting assembly is connected to the control system and provided with an adjusting rod which is connected to the grinding roller and is suitable for adjusting the roller spacing, and the roller spacing adjusting module is suitable for controlling the adjusting rod to operate according to the peeling rate/powder taking rate.
In a possible implementation manner, the sampling assembly comprises at least one sampling tube with one port arranged at the blanking position of the grinding roller and suitable for receiving the blanking, and the sampling assembly further comprises a distributor communicated with the other end of the sampling tube, wherein the distributor is provided with a distribution cavity and can drive the material to flow to the analysis device or the pulverizer.
In a possible implementation mode, the branch material chamber of tripper have with feed inlet, feed back mouth and the sample connection of sampling tube intercommunication, the feed back mouth with milling machine feed end intercommunication, the sample connection with analytical equipment feed end intercommunication, divide the material intracavity to be equipped with and be used for the shutoff the feed back mouth with one of them the branch flitch that switches the operation of sample connection, the tripper still include with the branch flitch is connected and is used for the drive the driver that the branch flitch switches, the driver is controlled by control system.
In a possible implementation manner, the weighing component for weighing the total weight is defined as a first weighing component and is arranged above the detection screen, the weighing component for weighing the filtered material is defined as a second weighing component and is arranged below the detection screen, the first weighing component is provided with a first weighing hopper communicated with the discharge end of the sampling component, and the discharge end of the first weighing hopper is communicated with the detection screen; the second weighing component is provided with a second weighing hopper communicated with the discharge end of the detection sieve, the discharge end of the second weighing hopper is communicated with the feed end of the flour mill, and the first weighing component and the second weighing component both send weighing information to the control system.
In a possible implementation manner, the first weighing hopper and the second weighing hopper are both provided with accommodating cavities, the tops of the accommodating cavities are communicated with the discharge end of the sampling assembly or the discharge end of the detection sieve, the bottoms of the accommodating cavities are provided with discharge ports, the first weighing hopper and the second weighing hopper are both movably connected with a material baffle plate and a driving mechanism, the material baffle plate is suitable for closing and opening the discharge ports, and the driving mechanism is suitable for driving the material baffle plate to switch between a closed state and an open state;
the first weighing assembly and the second weighing assembly respectively comprise a shell and a weighing sensor, the shell is provided with a vertically-through discharge channel, the upper end of the discharge channel is hermetically connected with the circumferential side wall of the first weighing hopper or the second weighing hopper, the discharge port and the baffle plate are arranged in the discharge channel, and the lower end of the discharge channel is used for being communicated with the feed end of the detection screen or the feed end of the pulverizer; the first weighing hopper and the second weighing hopper are both connected with the weighing sensor, and the weighing sensor is electrically connected with the control system.
In a possible implementation manner, the outer peripheral walls of the first weighing hopper and the second weighing hopper extend outwards to form a first connecting plate, the inner wall of an opening at the upper end of the discharge channel extends inwards to form a second connecting plate, and the first connecting plate is in lap joint or splicing connection with the second connecting plate;
the first hopper of weighing with sampling assembly discharge end flexible coupling, detect the sieve discharge end with the second hopper feed end flexible coupling of weighing, the discharging channel lower extreme of shell with detect the sieve or milling machine flexible coupling.
In a possible implementation mode, the detection sieve includes feeding unit, sieve powder unit, discharge unit and the drive unit that connects gradually from last to lower, the feeding unit upper end has the feed port and is used for the intercommunication to get the total weight the subassembly discharge end of weighing, the feed port intercommunication has feedstock channel, sieve powder unit has the first passageway that is used for supplying the thing of oversize to pass through and is used for supplying the second passageway that the thing of undersize passes through, discharge unit with first passageway with the corresponding intercommunication in second passageway, drive unit is used for the drive sieve powder unit motion is in order to sieve the material.
In a possible implementation manner, the powder sieving unit comprises an outer frame arranged below the feeding unit, a sieve core arranged in the outer frame, and a guide plate arranged below the sieve core; the outer frame is provided with a powder sieving channel which is communicated up and down, the upper end of the powder sieving channel is communicated with the outlet of the feeding channel, the sieve core is formed between at least one side inner wall of the powder sieving channel and the first channel, the guide plate is formed between at least one side inner wall of the powder sieving channel and the second channel, and the first channel and the second channel are respectively corresponding to different side inner walls of the powder sieving channel.
In a possible implementation manner, the feeding unit further comprises a material homogenizing disc arranged below the feeding hole, the outer peripheral surface of the material homogenizing disc is circular, and the circle center of the material homogenizing disc coincides with the center of the feeding hole.
In a possible implementation manner, the sieve core includes a support frame body arranged in the powder sieving channel and a sieve mesh covering the support frame body, the number of the second channels is two, the two second channels respectively correspond to two opposite inner walls of the powder sieving channel, the height of the guide plate is gradually reduced from the middle to two sides, and two side edges with the low height of the guide plate respectively form the second channels with the adjacent inner walls of the powder sieving channel; the powder sieving unit is provided with a plurality of powder sieving units from top to bottom, the powder sieving unit is positioned below the powder sieving unit, and the sieve core of the powder sieving unit is corresponding to the first channel of the powder sieving unit positioned above the powder sieving unit.
The automatic flour mill provided by the invention has the beneficial effects that: compared with the prior art, the automatic flour mill comprises a flour mill, a sampling device, a control system, an analysis device and a roll spacing adjusting assembly, wherein the sampling device is arranged below a grinding roll and is provided with a sampling assembly suitable for sampling materials ground by the grinding roll, a scraping rate/powder taking rate calculating module and a roll spacing adjusting module are arranged in the control system, the analysis device is provided with a plurality of groups of weighing assemblies and detection sieves and is connected with the control system, at least one group of weighing assemblies is suitable for weighing the total weight of the sampled materials, the detection sieves are suitable for sieving the materials after weighing, at least one group of weighing assemblies is suitable for weighing the materials filtered by the detection sieves, the peeling rate/powder taking rate calculating module calculates the peeling rate/powder taking rate according to twice weighing results, the roller spacing adjusting assembly is connected to the control system, an adjusting rod which is connected to the grinding roller and is suitable for adjusting the roller spacing is arranged, the roller spacing adjusting module is suitable for controlling the adjusting rod to operate according to the peeling rate/powder taking rate, the technical problems that the grinding mill samples, the analysis grinding degree and the manual operation of the roller spacing have danger and inconvenience in operation are solved, the automatic sampling of the grinding powder is realized, the analysis peeling rate/powder taking rate and the adjustment of the distance between the grinding rollers are realized, and the technical effect of the automatic operation of the grinding mill is realized.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an automatic pulverizer provided in an embodiment of the present invention (a pulverizer and a sampling device are omitted);
fig. 2 is a schematic structural diagram of a sampling device of an automatic pulverizer according to an embodiment of the present invention;
FIG. 3 is a sectional view of the interior of the automatic pulverizer provided by the embodiment of the present invention after the sampling device is installed;
FIG. 4 is a schematic view of a distributor of a sampling assembly of an automatic pulverizer according to an embodiment of the present invention;
FIG. 5 is an internal sectional view of the dispenser of FIG. 4;
FIG. 6 is a schematic diagram of a weighing assembly of an analysis apparatus of an automatic pulverizer according to an embodiment of the present invention;
FIG. 7 is a cross-sectional schematic view of the weighing assembly of FIG. 6;
FIG. 8 is an enlarged view of a portion A of FIG. 7;
FIG. 9 is a schematic view of a weighing assembly of an analyzer of an automatic pulverizer according to another embodiment of the present invention;
FIG. 10 is a schematic view of a detecting screen of an analyzing apparatus of an automatic pulverizer according to an embodiment of the present invention;
FIG. 11 is a schematic view of another angle of the inspection screen of the pulverizer of an embodiment of the present invention;
FIG. 12 is a schematic view of the internal structure of a sieve for use in a pulverizer of an embodiment of the present invention;
FIG. 13 is a schematic structural diagram of a discharging unit according to an embodiment of the present invention;
figure 14 is a schematic view of the position of the screen core, the first channel and the second channel in an embodiment of the invention;
FIG. 15 is a schematic structural diagram of a powder sieving unit according to an embodiment of the present invention;
FIG. 16 is a schematic cross-sectional view of a powder sieving unit according to an embodiment of the present invention;
FIG. 17 is a schematic view of a further angle of the inspection screen of the pulverizer of an embodiment of the present invention;
FIG. 18 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 8;
FIG. 19 is a cross-sectional view taken in the direction B-B of FIG. 9;
FIG. 20 is a schematic view of a roller spacing adjustment assembly of an automatic pulverizer according to an embodiment of the present invention;
fig. 21 is a schematic structural view of the cabinet body in fig. 1 with the cabinet plate removed.
Description of reference numerals:
100. a sampling device; 110. a sampling assembly; 111. a sampling tube; 112. a distributor; 113. a material distributing cavity; 114. a feed inlet; 115. a feed back port; 116. a sampling port; 117. a material distributing plate; 118. a driver; 119. a housing; 120. a connecting portion; 121. a connecting rod; 122. a limiting component;
200. a control system;
300. an analysis device; 310. a detection sieve; 311. a feed unit; 312. a powder sieving unit; 313. a discharging unit; 314. a drive unit; 3141. an eccentric wheel; 3142. an elastic member; 315. a feed port; 316. a first channel; 317. a second channel; 318. an outer frame; 319. a screen core; 3191. a baffle; 3192. a powder screening channel; 3193. a discharge hole; 3194. a flow guiding sloping plate; 320. a first weighing assembly; 321. a first weighing hopper; 322. an accommodating chamber; 323. a discharge port; 324. a striker plate; 325. a drive mechanism; 326. a housing; 327. a weighing sensor; 328. a discharge channel; 329. a first connecting plate; 330. a second weighing assembly; 331. a second weighing hopper; 332. a second connecting plate; 340. a cyclone collector; 350. shutting off the fan; 360. a material homogenizing disc; 370. connecting blocks; 380. a locking member;
400. a roll gap adjusting assembly;
500. grinding the roller; 510 a squeegee;
600. a flour collecting box;
700. a cabinet body; 710. a cabinet plate.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to 20, an automatic pulverizer according to the present invention will now be described. The automatic pulverizer comprises a pulverizer, a sampling device 100, a control system 200, an analysis device 300 and a roller spacing adjusting assembly 400, wherein the pulverizer is provided with at least one pair of grinding rollers 500 with adjustable roller spacing; the sampling device 100 is disposed below the grinding roller 500 and has a sampling assembly 110 adapted to sample material ground by the grinding roller 500; a scraping rate/powder taking rate calculation module and a roller spacing adjusting module are arranged in the control system 200; the analysis device 300 is provided with a plurality of groups of weighing components and a detection screen 310 and is connected with the control system 200, at least one group of weighing components is suitable for weighing the total weight of the sampled materials, the detection screen 310 is suitable for screening the materials after weighing, at least one group of weighing components is suitable for weighing the materials filtered by the detection screen 310, and the peeling rate/powder taking rate calculation module calculates the peeling rate/powder taking rate according to the weighing results of two times; the roll gap adjusting assembly 400 is connected to the control system 200, and has an adjusting bar 410 connected to the grinding roll 500 and adapted to adjust the roll gap, and a roll gap adjusting module adapted to control the operation of the adjusting bar 410 according to the scraping/dusting rate.
Compared with the prior art, the automatic flour mill provided by the invention has the advantages that the sampling device 100 can automatically sample milled powder, the analysis device 300 can screen sampled materials and weigh the total weight and the screened weight, the control system 200 can calculate the stripping rate/powder taking rate according to the weight and adjust the roller distance according to the stripping rate/powder taking rate so as to adjust the milling effect, the technical problems that manual operation of flour mill sampling, milling degree analysis and roller distance adjustment is dangerous and inconvenient to operate are solved, and the technical effects of automatic flour milling sampling, milling rate analysis/powder taking rate, roller distance adjustment 500 and automatic flour mill operation are realized.
The control system 200 in this embodiment includes an electric cabinet, a controller (e.g., PLC), a control circuit, etc., and the scraping rate/powder extraction rate calculation module can record the weighed weight information, calculate according to the weight information, and obtain a calculation result, which is the scraping rate/powder extraction rate, and the specific calculation formula of the scraping rate/powder extraction rate refers to the prior art, and the calculation formula, the threshold value for roll distance adjustment control, and the range of the scraping rate/powder extraction rate can be set on the control system 200. And roll spacing adjusting module can control the operation of adjusting pole 410, if the rate of scraping/get the powder rate at predetermined within range, then do not start the regulation to the roll spacing, if not at predetermined within range, then control system 200 starts the control to adjusting pole 410 to adjust the interval between grinding roller 500, so that reasonable control crocus degree and effect have realized the automatic intelligent control of crocus. The adjusting rods 410 are conventional screws, and are in threaded connection with the end of one of the grinding rollers of a pair of rollers, and the roller spacing can be adjusted by screwing the screws, and of course, the adjusting rods 410 are respectively arranged at two ends of the grinding rollers.
In some embodiments, referring to fig. 1 to 20, the sampling assembly 110 includes at least one sampling tube 111 having a port disposed at the discharge portion of the grinding roller 500 and adapted to receive the discharge portion, and the sampling assembly 110 further includes a distributor 112 communicating with the other end of the sampling tube 111, the distributor 112 having a distribution chamber 113 and being capable of driving the material to the analyzing device 300 or the pulverizer. The material that is extruded by grinding roller 500 and falls (the powder that forms after the crocus) can be accepted to sampling tube 111 one end, sets up two sampling tubes 111 in this embodiment, respectively sets up one at grinding roller 500's one end, can monitor like this that grinding roller 500 is close to the rate of scraping/get the powder rate of the material at both ends unanimously. Of course, one or more sampling tubes 111 may be provided, and the present invention is not limited thereto, as long as the position is set to receive the blanking material. The powder discharged from the sampling pipe 111 reaches the inside of the distributor 112, and when sampling is required, the material is flowed to the analyzing device 300 through the distributor 112, and when sampling is not required, the material can be flowed again to the flour mill or the flour collecting box 600 in the drawing through the distributor 112.
Realize automatic sampling through sampling tube 111 and tripper 112 cooperation use, the operation is safe, and for the flour flows, the height that highly is higher than the discharge end of setting up of the feed end of sampling tube 111, just can realize through the flour dead weight like this that the flour flows to the tripper 112 in, like sampling tube 111 can vertical setting. Of course, in addition to the manner of allowing the flour to fall by gravity, a conveying device may be provided for conveying the flour in the sampling tube 111 to the dispenser 112. The conveying device can be a screw conveyor, a pneumatic conveying device and the like.
In this embodiment, the sampling tube 111 can be fixed by a bracket, a mounting plate and the like, the sampling tube 111 can be mounted on the flour collecting box 600, the scraper 510 is arranged below the grinding roller 500 in fig. 2, the scraper 510 scrapes off materials on the grinding roller 500 and can directly fall into the flour collecting box 600, and the opening at the upper end of the flour collecting box 600 faces to the blanking position of the grinding roller 500. A portion of the material falls directly into the interior of sampling tube 111.
Preferably, the sampling tube 111 of this embodiment is movable along the axial direction of the grinding roller 500 to adjust the position of the receiving material. When the sampling tube 111 is a plurality of, arrange along grinding roller 500 axial, can acquire the flour of different positions, be convenient for more comprehensively analyze equipment state and crocus quality. When the control system 200 is unable to calculate the scraping/dusting rate, it may be obtained by manual calculation. The distributor 112 and the sampling tubes 111 may correspond to each other in number, or a plurality of sampling tubes 111 may share one distributor 112. When a distributor 112 is shared by a plurality of sampling tubes 111, different sampling tubes 111 are respectively communicated with the distributor 112 through a conveying pipe, a valve can be arranged on the conveying pipe, and the sampling of the sampling tubes 111 is separated by controlling the opening and closing of the valve in different time, so that the sampling tubes 111 can share the distributor 112, and the material mixing can be avoided, and the accuracy of an analysis result is influenced.
In some embodiments, referring to fig. 1 to fig. 20, the material dividing cavity 113 of the material divider 112 has a feeding port 114, a return port 115 and a sampling port 116, which are communicated with the sampling tube 111, the return port 115 is communicated with the feeding end of the pulverizer, the sampling port 116 is communicated with the feeding end of the analyzing device 300, a material dividing plate 117 for blocking one of the return port 115 and the sampling port 116 and switching operation is disposed in the material dividing cavity 113, the material divider 112 further includes a driver 118 connected to the material dividing plate 117 and used for driving the material dividing plate 117 to switch, and the driver 118 is controlled by the control system 200. The bottom end of the material distributing plate 117 is hinged in the material distributing cavity 113 through a hinge shaft, one end of the hinge shaft extends out of the material distributing cavity 113, the driver 118 can be an electric telescopic rod, a hydraulic cylinder, a motor, an air cylinder or the like, the extended end of the hinge shaft is driven, the driver 118 is arranged on the outer wall of the material distributing cavity 113, and therefore the material distributing plate 117 can rotate in a reciprocating mode within a certain angle range, the material returning opening 115 or the sampling opening 116 is blocked, namely the material distributing plate 117 has two positions, the material returning opening 115 is blocked at a first position, the sampling opening 116 is blocked at a second position, and switching action can be achieved between the two positions.
The arrows in fig. 4 indicate the material flow direction, and the sampling device 100 further comprises a negative pressure conveying device respectively communicating with the material return opening 115 and the sampling opening 116, and capable of conveying the material to the distributor 112 or the mill.
This embodiment is used for realizing the flour through setting up negative pressure conveyor and carries, compares with the mode that relies on gravity to realize that flour flows, and speed is faster, can also avoid the flour adhesion at the pipeline inner wall. The material return port 115 and the sampling port 116 may be respectively provided with an air suction mechanism, and the negative pressure fan provides power to enable flour to enter the distributor 112 from the sampling pipe 111 and then be discharged from the distributor 112.
The upper end of the material distributing plate 117 is in sealing contact with the inner wall of the material distributing cavity 113, so that the flour is prevented from falling into the material return port 115 or the sampling port 116, and the calculation accuracy of the scraping rate/the powder taking rate is influenced. In fig. 4, the distributor 112 includes a housing 119, a distributing cavity 113 is formed in the housing 119, one end of the hinge shaft extending out of the housing 119 is a connecting portion 120, the connecting portion 120 is connected with a connecting rod 121, one end of the connecting rod 121 is connected with the connecting portion 120, the other end of the connecting rod 121 is used for abutting against a limiting component 122 arranged on the outer wall of the housing 119, the connecting rod 121 swings within a range enclosed by the limiting component 122, and the power output end of the driver 118 is hinged to the middle portion of the connecting rod 121 and pushes the connecting rod 121 to rotate. The limiting assembly 122 comprises two limiting blocks arranged at intervals, mounting wires are connected to the limiting blocks in a threaded mode, the upper end of the connecting rod 121 swings within a range enclosed by the two mounting wires, when the end portion of the connecting rod 121 abuts against the two mounting wires, the connecting rod 121 swings between the two limiting points, and the material distributing plate 117 is driven to swing or rotate. Specifically, the swing amplitude of the connecting rod 121 can be adjusted by screwing the mounting wire, so that the swing of the material distributing plate 117 is controlled. When the device is adjusted, the upper end of the material distributing plate 117 is abutted against the inner wall of the shell 119, and a gap between the material distributing plate and the shell 119 is reduced, so that the calculation accuracy of the scraping rate/powder taking rate can be improved.
The peeling rate/powder taking rate refers to the percentage of the undersize flow of the powder sieve in the flow of the material entering the machine after the product is ground by a certain grinding procedure. The peeling rate/powder taking rate is a main index for measuring the mechanical grinding effect of flour. During the production of the flour mills, the flour ground by each flour mill needs to be sampled and the scraping rate/powder taking rate of the flour mill needs to be calculated, and the technological parameters of each flour mill are properly adjusted according to the calculation result so as to meet the technological requirements, so that each subsequent grinding system obtains reasonable material distribution proportion and quality, the grinding effect of the grinding system is improved, and the reliable and stable quality of the final product is ensured. The calculation of the peeling rate/powder extraction rate requires weighing the total weight of the sample, then feeding the sample into a vibrating screen for screening, and weighing the weight of the undersize.
In some embodiments, referring to fig. 1 to 20, the weighing component for weighing the total weight is defined as a first weighing component 320 and disposed above the detecting screen 310, the weighing component for weighing the filtered material is defined as a second weighing component 330 and disposed below the detecting screen 310, the first weighing component 320 has a first weighing hopper 321 communicated with the discharge end of the sampling component 110, and the discharge end of the first weighing hopper 321 is communicated with the detecting screen 310; the second weighing component 330 has a second weighing hopper 331 communicating with the discharge end of the detection screen 310, the discharge end of the second weighing hopper 331 communicates with the feed end of the mill, and the first weighing component 320 and the second weighing component 330 both send weighing information to the control system 200. Collect the sample material before not screening through first weighing hopper 321, collect the filtration material after the screening through second weighing hopper 331, weigh two kinds of materials respectively through first weighing component 320 and second weighing component 330, calculate the kibbling rate of scraping/get the powder rate according to the weighing data through control system 200 to can whether carry out roll spacing adjusting part 400 according to this rate of scraping/get the powder rate decision, and then whether will adjust the roll spacing and make the judgement.
The invention further comprises a cabinet body 700, wherein the sampling device 100, the control system 200 and the analysis device 300 are all arranged inside the cabinet body 700, and a plurality of cabinet plates 710 are detachably arranged on the outer wall of the cabinet body 700.
In some embodiments, referring to fig. 1 to 20, each of the first weighing hopper 321 and the second weighing hopper 331 has a receiving cavity 322, the top of the receiving cavity 322 is communicated with the discharging end of the sampling assembly 110 or the discharging end of the detecting sieve 310, the bottom of the receiving cavity has a discharging port 323, each of the first weighing hopper 321 and the second weighing hopper 331 is movably connected with the striker plate 324 and the driving mechanism 325, the striker plate 324 is adapted to close and open the discharging port 323, and the driving mechanism 325 is adapted to drive the striker plate 324 to switch between a closed state and an open state; the first weighing assembly 320 and the second weighing assembly 330 both further comprise a shell 326 and a weighing sensor 327, the shell 326 is provided with a discharge channel 328 which is through up and down, the upper end of the discharge channel 328 is hermetically connected with the circumferential side wall of the first weighing hopper 321 or the second weighing hopper 331, the discharge port 323 and the material baffle 324 are arranged in the discharge channel 328, and the lower end of the discharge channel 328 is used for communicating the feed end of the detection screen 310 or the feed end of the pulverizer; first weighing hopper 321 and second weighing hopper 331 are both connected to load cell 327, and load cell 327 is electrically connected to control system 200.
Weighing sensor 327 one end and cabinet body fixed connection, can weigh first weighing hopper 321 and second weighing hopper 331 (including inside material), this weight of weighing is the gross weight, can obtain the weight of material through calculating the weight that subtracts the hopper. The driving mechanism 325 is a product in the prior art, and is an electric telescopic rod, an air cylinder, an oil cylinder or the like, the discharge hole 323 is closed, then the weighing is performed through the weighing sensor 327, the driving mechanism 325 drives the material baffle 324 to switch between two states of closing and opening the discharge hole 323, the weighing sensor 327 is fixedly connected with the cabinet body in fig. 21, and the first weighing hopper 321 and the second weighing hopper 331 are both erected on the weighing sensor 327. When the weighing is finished, the discharge port 323 can be controlled to be opened, so that the material can continuously fall into the shell 326 and can flow out from the bottom. The upper end of the discharge channel 328 is hermetically connected with the circumferential side wall of the first weighing hopper 321 or the second weighing hopper 331, so that flour can be prevented from floating to the outside.
Specifically, use weighing sensor 327 to compare in the mode of manual weighing, can alleviate operating personnel's intensity of labour, improve work efficiency, help realizing weighing on line of many milling machines in crocus workshop, the rate of scraping/getting powder rate analysis is peeled off in real time to many milling machines to the convenience, realizes the real time monitoring of crocus workshop equipment state. The weighing assembly can be used for weighing flour sampled from the flour mill, and can also be used for weighing flour sieved by the detection sieve 310, and the weighing assembly can be arranged at different positions as required during use.
Optionally, the striker plate 324 may be slidably disposed at the bottom of the first weighing hopper 321 or the second weighing hopper 331, a chute may be disposed on an end surface of the discharge port 323, the chute is perpendicular to an opening direction of the discharge port 323, and the striker plate 324 is slidably disposed in the chute. The driving mechanism 325 can drive the striker plate 324 to slide back and forth, such as an air cylinder, an electric telescopic rod, and the like. Or the striker plate 324 can be rotatably arranged at the bottom of the first weighing hopper 321 or the second weighing hopper 331, a hinge lug can be arranged on the side wall of the first weighing hopper 321 or the second weighing hopper 331, one end of the striker plate 324 is hinged with the hinge lug, and the driving mechanism 325 controls the striker plate 324 to rotate to realize opening and closing. The driving mechanism 325 may be a motor or other power mechanism that engages with the rotating shaft of the striker plate 324.
One or more load cells 327 may be disposed as required, and load cell 327 may be a resistance strain gauge sensor, a hydraulic sensor, a capacitive sensor, or a piezoelectric sensor, which is not limited in this embodiment of the present invention.
In some embodiments, referring to fig. 1 to 20, the outer peripheral walls of the first weighing hopper 321 and the second weighing hopper 331 extend outward to form a first connecting plate 329, the inner wall of the upper opening of the discharging channel 328 extends inward to form a second connecting plate 332, and the first connecting plate 329 is overlapped or inserted with the second connecting plate 332; the first weighing hopper 321 is flexibly connected with the discharge end of the sampling assembly 110, the discharge end of the detection screen 310 is flexibly connected with the feed end of the second weighing hopper 331, and the lower end of the discharge channel 328 of the shell 326 is flexibly connected with the detection screen 310 or the flour mill. In this embodiment, the first connecting plate 329 and the second connecting plate 332 are fixed in an overlapping manner, in order to realize fixation, a plurality of mounting holes may be respectively formed in the first connecting plate 329 and the second connecting plate 332 to form a flange joint surface, and the mounting holes of the first connecting plate 329 and the second connecting plate 332 are fixed by bolts. Through the flexible connection, the weighing data are accurate.
The end face of the discharge port 323 is provided with a sealing gasket, and the material baffle 324 is in sealing fit with the sealing gasket. When the discharge port 323 is closed, the baffle plate 324 is contacted with the sealing gasket, and a certain pressing force is applied to the sealing gasket under the thrust action of the driving mechanism 325, so that the sealing of the joint surface is ensured, and the flour is prevented from leaking from the gap. The opening direction of the discharge port 323 is inclined from the horizontal direction. The opening direction slope of discharge gate 323 sets up in this embodiment, and is corresponding, striker plate 324 and the laminating of discharge gate 323, and when being in closed position, striker plate 324 slopes to set up equally, opens the back when striker plate 324, piles up the flour in striker plate 324 top and can drop along the inclined plane fast, helps shortening operating time, improves operating efficiency. As another example, the striker plate 324 is hinged to the hopper, and the driving mechanism 325 has a telescopic end hinged to the striker plate 324. The driving mechanism 325 is installed on the first weighing hopper 321, the second weighing hopper 331 or the housing 326, and the retractable end extends and retracts to drive the striker plate 324 to rotate, so that the striker plate 324 is switched between an opening position and a closing position.
Preferably, a cyclone collector 340 is communicated above the first weighing assembly 320, the cyclone collector 340 is also called a saxolone and is used for collecting flour particles conveyed by the pneumatic conveying device, the airflow carrying the flour particles enters the cyclone collector 340 and rotates along the conical inner wall, the flour particles are separated from the airflow by means of centrifugal force and collected on the inner wall, and then the flour particles fall into the first weighing hopper 321 below by means of gravity.
In some possible embodiments, an associated fan 350 is disposed at the discharge end of the cyclone collector 340, and the outlet of the associated fan 350 is connected to the first weighing assembly 320. Since the cyclone collector 340 is suitable for a scene in which a pneumatic conveying device is used for conveying flour samples, when the airflow is too large, the flour entering the first weighing hopper 321 may be interfered, and the weighing result is not accurate. In the embodiment, the air lock 350 is arranged between the cyclone collector 340 and the first weighing hopper 321, so that on one hand, the upper and lower air pressures of the air lock 350 can be isolated to play a role in locking air, so as to ensure that the air and the solid in the air output pipe are relatively stable. On the other hand, the cyclone collector 340 can also be used as a discharge device to convey the collected material into the first weighing hopper 321.
In some embodiments, referring to fig. 1 to 20, the detecting screen 310 includes a feeding unit 311, a powder sieving unit 312, a discharging unit 313 and a driving unit 314 connected in sequence from top to bottom, the feeding unit 311 has a feeding hole 315 at an upper end thereof and is used for communicating with a discharging end of a weighing component for weighing a total weight, the feeding hole 315 is communicated with a feeding channel, the powder sieving unit 312 has a first channel 316 for passing oversize matters and a second channel 317 for passing undersize matters, the discharging unit 313 is correspondingly communicated with the first channel 316 and the second channel 317, and the driving unit 314 is used for driving the powder sieving unit 312 to move to sieve the materials.
In some embodiments, referring to fig. 1 to 20, the powder sieving unit 312 includes an outer frame 318 disposed below the feeding unit 311, a sieve core 319 disposed in the outer frame 318, and a baffle 3191 disposed below the sieve core 319; the outer frame 318 is provided with a powder sieving channel 3192 which is through up and down, the upper end of the powder sieving channel 3192 is communicated with the outlet of the feeding channel, a first channel 316 is formed between the sieve core 319 and at least one side inner wall of the powder sieving channel 3192, a second channel 317 is formed between the guide plate 3191 and at least one side inner wall of the powder sieving channel 3192, and the first channel 316 and the second channel 317 respectively correspond to different side inner walls of the powder sieving channel 3192. The material flows out from the discharge hole 3193 at the bottom end after being screened, and the number of the discharge holes 3193 is two. The side part of the upper end of the discharge hole 3193 is provided with a flow guide sloping plate 3194, and the material is guided to the discharge hole 3193 through the flow guide sloping plate 3194 after being output.
In this embodiment, the undersize is the flour particles that can pass through the holes of the sieve core 319, and the oversize is the flour particles that cannot pass through the holes of the sieve core 319 due to their large volume. In order to facilitate understanding of the position relationship of the powder sieving channel 3192, the first channel 316 and the second channel 317, as shown in fig. 14, the inner space of the outer frame 318 is the powder sieving channel 3192, the sieve core 319 is arranged in the powder sieving channel 3192, the guide plate 3191 is arranged right below the sieve core 319, and the guide plate 3191 is arranged obliquely, so that the flour particles falling onto the guide plate 3191 can slide into the second channel 317. A second channel 317 is formed between the guide plate 3191 and the inner wall of the powder sieving channel 3192, and a first channel 316 is formed between the sieve core 319 and the inner wall of the powder sieving channel 3192.
Use drive unit 314 can drive sieve powder unit 312 vibration or rock, and the flour sample gets into sieve powder unit 312 through feed port 315 and inlet channel, and drive unit 314 drives sieve powder unit 312 and constantly rocks, and the flour granule that the granularity meets the requirements drops to second passageway 317 along guide plate 3191 behind the sieve core 319, gets into the passageway rather than the intercommunication from second passageway 317, discharges from the discharge end that corresponds at last. Flour particles with the particle size larger than the aperture of the sieve core 319 enter the first channel 316, fall from the first channel 316 to the discharge channel 328 communicated with the first channel, and are finally discharged from the corresponding discharge hole. Through set up collection device respectively at two discharge openings, can directly collect oversize thing and undersize thing, remove the step of artifical collection from, alleviate intensity of labour, make the operation more convenient, efficiency is higher.
In this embodiment, the driving unit 314 is used to drive the powder sieving unit 312 to move, and when the feeding unit 311, the powder sieving unit 312 and the discharging unit 313 are fixedly connected, the driving unit 314 can drive the three units to move together. Alternatively, when the flexible connection is formed between the feeding unit 311 and the sieving unit 312 and between the sieving unit 312 and the discharging unit 313, the driving unit 314 may drive only the sieving unit 312 to move. The powder sieving unit 312 sieves the flour particles falling onto the upper surface of the sieve core 319, the powder sieving unit 312 can perform up-and-down vibration, left-and-right vibration, horizontal circular motion and other motion modes, and correspondingly, the driving unit 314 can be a vibration motor arranged along the up-and-down direction or the horizontal direction, or a rotating motor driving the powder sieving unit 312 to perform circular motion. One or more powder sieving units 312 can be arranged from top to bottom, when a plurality of powder sieving units 312 are arranged, the powder sieving units 312 are fixedly connected, and the first channel 316 of the powder sieving unit 312 positioned above forms the feeding channel of the powder sieving unit 312 positioned below. A plurality of screening units 312 can realize that flour sieves many times, have solved the insufficient problem of single sieve core 319 sieve powder. The feeding hole 315 of the feeding unit 311 in this embodiment can be directly communicated with the discharging end of the first weighing assembly 320.
When flour falls onto the sieve core 319 from the feeding channel, the sieve powder unit 312 moves to scatter flour particles onto the upper surface of the sieve core 319, the flour particles meeting the particle size requirement fall onto the guide plate 3191 below after passing through the sieve core 319, then slide onto the second channel 317 along the guide plate 3191, enter the discharging unit 313 below, and are discharged from the corresponding discharging end of undersize. The flour particles with larger particle size are retained on the upper surface of the sieve core 319, gradually move to the edge position of the upper surface of the sieve core 319 in the vibration or shaking process of the powder sieving unit 312, then fall to the discharging unit 313 below through the first channel 316, and are discharged from the discharge end of the corresponding oversize product. The discharging unit 313 has two discharging channels 328 respectively communicated with the first channel 316 and the second channel 317, in order to avoid the mixing of the materials of the two discharging channels 328, the two discharging channels 328 can be separated by a partition plate, the flour falling into the discharging channels 328 can be discharged through respective oversize material discharging ends and undersize material discharging ends, and an operator can respectively set a flour collecting device at the two discharging ends (prior art). And weighing the collected flour, and calculating to obtain the peeling rate/flour extraction rate.
In some embodiments, referring to fig. 1 to 20, the feeding unit 311 further includes a homogenizing plate 360 disposed below the feeding hole 315, an outer circumference of the homogenizing plate 360 is circular, a center of the circle coincides with a center of the feeding hole 315, and the homogenizing plate 360 is disposed horizontally. In this embodiment, the opening of the feeding hole 315 is upward, the material homogenizing plate 360 is arranged below, and the material homogenizing plate 360 is uniformly spread along the circumferential direction of the material homogenizing plate 360 and then falls onto the screen core 319 below. So set up, help making the flour granule spread at sieve core 319 upper surface and spill evenly, improve sieve powder efficiency and sieve powder effect. The homogenizing disc 360 has a circular outer peripheral surface, and the homogenizing disc 360 can be a disc or a ring.
In some embodiments, the feeding unit 311 is provided with a plurality of connecting blocks 370 along the circumferential direction, the present invention further includes a plurality of locking members 380 corresponding to the connecting blocks 370 one by one, the locking members 380 connect the connecting blocks 370 and the discharging unit 313 and are configured with a pre-tightening force for enabling the feeding unit 311 and the discharging unit 313 to clamp the sieving unit 312 respectively. In this embodiment, the feeding unit 311, the powder sieving unit 312 and the discharging unit 313 are connected into a whole by the locking member 380, and the driving unit 314 drives the above three to vibrate or rock integrally. The locking member 380 may be a bolt, a clamping jaw, a binding rope, etc., and the embodiment is not limited thereto. In some possible embodiments, the connecting block 370 is provided with a vertical mounting hole, the discharging unit 313 is provided with a threaded hole, and the locking member 380 is arranged through the mounting hole and is in threaded fit with the threaded hole. In the embodiment, the screw end of the locking member 380 penetrates through the mounting hole from top to bottom and then is connected with the threaded hole which is coaxially arranged, and the feeding unit 311 and the discharging unit 313 are respectively provided with pre-tightening force for clamping the powder sieving unit 312 by screwing the locking member 380. The locker 380 is provided in plurality along the circumference of the feeding unit 311.
In some embodiments, referring to fig. 1 to 20, the sieve core 319 includes a support frame body disposed in the powder sieving channel 3192 and a sieve covered on the support frame body, the second channels 317 are two and respectively correspond to two opposite inner walls of the powder sieving channel 3192, the height of the flow guide plate 3191 gradually decreases from the middle to the two sides, and two sides of the flow guide plate 3191 with a low height respectively form the second channels 317 with the inner walls of the adjacent powder sieving channel 3192; the powder sieving unit 312 is provided with a plurality of sieving cores 319 from top to bottom, and the sieving core 319 of the powder sieving unit 312 positioned at the lower part corresponds to the first channel 316 of the powder sieving unit 312 positioned at the upper part. The sieve core 319 in this embodiment includes a support frame body and a screen cloth covered on the support frame body, in order to clearly express the internal structure of the product, the screen cloth is not shown in the drawings, and the screen cloth is covered outside the support frame body and can be fixed by gluing, rivet connection, and other manners. The number of the second channels 317 is two, the two second channels correspond to the inner walls of the two opposite sides of the powder sieving channel 3192 respectively, the height of the guide plate 3191 is gradually reduced from the middle to the two sides, and the two low-height sides of the guide plate 3191 and the inner walls of the adjacent powder sieving channel 3192 form the second channels 317 respectively. In this embodiment, the flow guide plate 3191 is symmetrically arranged by two sloping plates to form a structure with a high middle part and low two sides, the feed hole 315 corresponds to the highest position in the middle of the flow guide plate 3191, and sieved flour enters the two second channels 317 on two sides through the flow guide of the two sloping plates and then falls into the discharge channel 328 corresponding to the lower part. The flour in the two second channels 317 is gathered in the discharge channel 328 and then discharged from the discharge end. The screen core 319 in fig. 15-16 represents a support frame body that does not contain a screen.
For ease of distinction, the single arrows in the figures represent oversize flow directions and the double arrows represent undersize flow directions. Referring to fig. 10, in some possible embodiments, the powder sieving unit 312 is provided with a plurality of sieving cores 319 from top to bottom, and the sieving cores 319 of the powder sieving unit 312 located below correspond to the first channels 316 of the powder sieving unit 312 located above. In this embodiment, the powder sieving unit 312 is provided with a plurality of powder sieving units from top to bottom, and the first channel 316 (oversize material channel) of the upper powder sieving unit 312 forms the feeding channel of the lower powder sieving unit 312. Can realize that flour sieves many times through a plurality of sieve powder units 312, solve single sieve core 319 and sieved the insufficient problem of powder, guarantee the sieve powder effect.
In this embodiment, the powder sieving units 312 have at least two setting modes. In the first mode, the plurality of powder sieving units 312 are arranged in a stepped manner from top to bottom in sequence, and the oversize material feeding and discharging directions of the plurality of powder sieving units 312 are the same. The driving unit 314 may drive the sifting unit 312 to vibrate reciprocally in the feeding and discharging direction of the oversize. In another way, referring to fig. 10, 12 and 18, in some possible embodiments, the outer frames 318 of the powder sieving units 312 are flush, and the first channel 316 of the previous powder sieving unit 312 and the first channel 316 of the next powder sieving unit 312 are respectively located at two opposite sides of the powder sieving channel 3192 to form a serpentine channel for the oversize to pass through.
In this embodiment, the oversize material feeding and discharging directions of two adjacent powder sieving units 312 are opposite, so that a serpentine channel is formed, the structure is more compact, the space utilization rate is higher, at this time, the driving unit 314 can drive the powder sieving units 312 to make a circular rotary motion, and the moving track of the powder sieving units 312 forms a circle. Referring to fig. 10 and 18, in some possible embodiments, the discharging unit 313 is fixedly connected to the powder sieving unit 312, a vertical rotating shaft is disposed at a central position of the bottom of the discharging unit 313, and a transmission shaft of the driving unit 314 is disposed at a position offset from the rotating shaft and connected to the rotating shaft through an eccentric 3141.
The driving unit 314 in this embodiment may be specifically an electric motor, a hydraulic motor, or other power device capable of outputting a rotational motion. The rotating shaft is in transmission connection with a transmission shaft of the driving unit 314 through an eccentric wheel 3141, so that the powder sieving unit 312 and the discharging unit 313 can do circular rotation motion together.
Referring to fig. 10, in some possible embodiments, the driving unit 314 further includes a mounting plate disposed below the discharging unit 313, and an elastic member 3142 connected to the mounting plate and the discharging unit 313, wherein the elastic members 3142 are disposed along a circumferential direction of the discharging unit 313. In this embodiment, the elastic member 3142 is disposed to connect the mounting plate and the discharging unit 313, and the elastic member 3142 may be a spring, a rubber strip, or other components capable of elastic deformation. Since the transmission shaft of the driving unit 314 is connected with the central position of the discharging unit 313, by arranging the elastic member 3142 around, the elastic member 3142 is stretched to provide a pulling force during the movement of the discharging unit 313 and the powder sieving unit 312, so as to prevent the edge of the discharging unit 313 from having too large amplitude, and to keep the posture of the discharging unit 31330 and the powder sieving unit 312 stable.
Preferably, the bottom of the second weighing assembly 330 is communicated with another set of cyclone collectors 340, the bottom of the cyclone collector 340 is communicated with a related fan 350, the outlet of the related fan 350 is communicated with the feeding end of the mill, and the weighed materials are returned to the mill to form a circulation.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. Automatic milling machine, its characterized in that includes:
a pulverizer having at least one pair of grinding rollers with adjustable roller spacing;
the sampling device is arranged below the grinding roller and is provided with a sampling assembly suitable for sampling the material ground by the grinding roller;
the control system is internally provided with a scraping rate/powder taking rate calculation module and a roller spacing adjusting module;
the analysis device is provided with a plurality of groups of weighing components and detection sieves and is connected with the control system, at least one group of weighing components is suitable for weighing the total weight of the sampled materials, the detection sieves are suitable for sieving the materials after weighing, at least one group of weighing components is suitable for weighing the materials filtered by the detection sieves, and the peeling rate/powder taking rate calculation module calculates the peeling rate/powder taking rate according to the weighing results of two times; and
the roller spacing adjusting assembly is connected to the control system and provided with an adjusting rod which is connected to the grinding roller and is suitable for adjusting the roller spacing, and the roller spacing adjusting module is suitable for controlling the adjusting rod to operate according to the peeling rate/powder taking rate.
2. An automatic pulverizer as claimed in claim 1, wherein said sampling assembly includes at least one sampling tube having a port disposed at a discharge location of said grinding roller and adapted to receive the discharge, said sampling assembly further including a distributor communicating with another end of said sampling tube, said distributor having a distribution chamber and being capable of driving a material flow toward said analyzing means or said pulverizer.
3. An automatic pulverizer as claimed in claim 2, wherein the distributing chamber of the distributor has a feed inlet, a feed back port and a sampling port communicating with the sampling tube, the feed back port communicates with the feed end of the pulverizer, the sampling port communicates with the feed end of the analyzer, a distributing plate for plugging one of the feed back port and the sampling port and switching the operation is provided in the distributing chamber, the distributor further comprises a driver connected to the distributing plate and driving the distributing plate to switch, and the driver is controlled by the control system.
4. An automated mill according to claim 1, wherein the weighing assembly for weighing the total weight is defined as a first weighing assembly and positioned above the test screen, and the weighing assembly for weighing the filtered material is defined as a second weighing assembly and positioned below the test screen, the first weighing assembly having a first weighing hopper in communication with the sampling assembly discharge end, the first weighing hopper discharge end being in communication with the test screen; the second weighing component is provided with a second weighing hopper communicated with the discharge end of the detection sieve, the discharge end of the second weighing hopper is communicated with the feed end of the flour mill, and the first weighing component and the second weighing component both send weighing information to the control system.
5. The automatic pulverizer of claim 4, wherein the first weighing hopper and the second weighing hopper each have a receiving cavity, the top of the receiving cavity is communicated with the discharge end of the sampling assembly or the discharge end of the detection screen, the bottom of the receiving cavity has a discharge port, the first weighing hopper and the second weighing hopper are movably connected with a striker plate and a driving mechanism, the striker plate is suitable for closing and opening the discharge port, and the driving mechanism is suitable for driving the striker plate to switch between a closed state and an open state;
the first weighing assembly and the second weighing assembly respectively comprise a shell and a weighing sensor, the shell is provided with a discharge channel which is communicated up and down, the upper end of the discharge channel is hermetically connected with the circumferential side wall of the first weighing hopper or the second weighing hopper, the discharge port and the material baffle are arranged in the discharge channel, and the lower end of the discharge channel is used for being communicated with the feed end of the detection screen or the feed end of the pulverizer; the first weighing hopper and the second weighing hopper are both connected with the weighing sensor, and the weighing sensor is electrically connected with the control system.
6. The automated flour mill according to claim 5, wherein the outer peripheral walls of the first weighing hopper and the second weighing hopper extend outward to form a first connecting plate, the inner wall of the opening at the upper end of the discharge passage extends inward to form a second connecting plate, and the first connecting plate is overlapped with or inserted into the second connecting plate;
the first hopper of weighing with sampling component discharge end flexible coupling, detect the sieve discharge end with the second hopper feed end flexible coupling of weighing, the discharging channel lower extreme of shell with detect the sieve or milling machine flexible coupling.
7. The automatic pulverizer as claimed in claim 1, wherein the detection sieve includes a feeding unit, a sieving unit, a discharging unit and a driving unit sequentially connected from top to bottom, the feeding unit has a feeding hole at an upper end thereof and is used for communicating a discharging end of the weighing assembly for weighing the total weight, the feeding hole is communicated with a feeding channel, the sieving unit has a first channel for passing oversize materials and a second channel for passing undersize materials, the discharging unit is correspondingly communicated with the first channel and the second channel, and the driving unit is used for driving the sieving unit to move to sieve the materials.
8. An automatic mill according to claim 7, characterized in that said powder sieving unit comprises an outer frame disposed below said feed unit, a sieve core disposed in said outer frame, and a deflector disposed below said sieve core; the outer frame is provided with a powder sieving channel which is communicated up and down, the upper end of the powder sieving channel is communicated with the outlet of the feeding channel, the sieve core is formed between at least one side inner wall of the powder sieving channel and the first channel, the guide plate is formed between at least one side inner wall of the powder sieving channel and the second channel, and the first channel and the second channel are respectively corresponding to different side inner walls of the powder sieving channel.
9. An automatic mill according to claim 7, wherein said feed unit further comprises a homogenizing plate disposed below said feed opening, an outer peripheral surface of said homogenizing plate being circular and having a center coinciding with a center of said feed opening.
10. The automatic pulverizer as claimed in claim 8, wherein the screen core includes a support frame body disposed in the powder passage and a screen covering the support frame body, the second passages are two and respectively corresponding to two opposite inner walls of the powder passage, the height of the deflector is gradually reduced from the middle to the two sides, and the two lower edges of the deflector respectively form the second passages with the adjacent inner walls of the powder passage; the powder sieving unit is provided with a plurality of powder sieving units from top to bottom, and the powder sieving unit is positioned below the powder sieving unit, and the sieve core is corresponding to the powder sieving unit positioned above the first channel.
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| CN110227600A (en) * | 2019-07-10 | 2019-09-13 | 陆有明 | A kind of cement grinding systems for selecting powder to realize that partial size is prepared using mill tail pair |
| CN210613999U (en) * | 2019-08-30 | 2020-05-26 | 辽宁丹炭科技集团有限公司 | Online monitoring system of suspension roller type flour mill |
| CN112317010A (en) * | 2020-11-20 | 2021-02-05 | 北京中仪智控科技有限公司 | Intelligent wheat flour milling-electronic flour mill system |
| CN214131902U (en) * | 2020-11-20 | 2021-09-07 | 北京中仪智控科技有限公司 | Intelligent detection and automatic control module for scraping rate/powder taking rate and particle size distribution |
| CN113231336A (en) * | 2021-05-08 | 2021-08-10 | 中国科学院长春光学精密机械与物理研究所 | Device and method for analyzing flour sample on line |
| CN115155755A (en) * | 2022-07-28 | 2022-10-11 | 唐山神州机械集团有限公司 | Dry coal preparation equipment for coal mine |
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