Automatic engineering material blanking metering device

Abstract

The invention belongs to the technical field of blanking metering, and particularly relates to an automatic engineering material blanking metering device which comprises a stock bin, supporting legs and a column type sensor located between the supporting legs and the stock bin, a screening cone is fixedly installed in the stock bin, and a screening blocking frame with an L-shaped section is fixedly installed on the outer wall of the screening cone; a control disc is slidably mounted in the stock bin, a grinding disc is rotatably mounted in the control disc, a first partition table is rotatably mounted in the stock bin, a second partition table is arranged in the first partition table, a grinding opening is formed between the first partition table and the second partition table, and the diameter of a top opening of the grinding opening is larger than that of a bottom opening of the grinding opening. The material leakage opening is formed in the screening blocking frame, cement is subjected to secondary crushing, the problem of collected data distortion caused by the empty material or sudden gushing phenomenon due to cement caking can be avoided, and the metering accuracy of the column type sensor is further improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of blanking metering, and specifically relates to an automatic blanking metering device for engineering materials. Background Art

[0002] An engineering material blanking metering device is a key device for automatically controlling the material feeding amount in industrial production, mainly for various raw materials, semi-finished products or auxiliary materials used in engineering fields such as industrial production, construction, and manufacturing processing, including but not limited to powders (such as cement, mineral powder), granules (such as sand, plastic particles), bulk materials (such as ore, metal ingot), liquids (such as paint, chemical reagent), and viscous substances (such as asphalt, adhesive).

[0003] A common metering measure is to achieve accurate metering of material discharge by a weighing sensor through real-time monitoring of the weight change of the hopper in static batch metering. First, calibrate the empty load tare weight, continuously detect the weight difference during the process of material loading and discharge, and automatically control the start and stop of the feeding mechanism according to the preset target value to achieve the purpose of quantitative discharge.

[0004] However, when metering a powdery material such as cement, since the main component of cement, calcium silicate, has strong hydrophilicity, water will be adsorbed on the surface of cement particles, and capillary force will be generated between the particles by the initial hydration products, causing fine particles to bond. Therefore, when the temperature difference between day and night is large, condensate is likely to be generated in the silo, and local wetting will exacerbate the cement caking. Moreover, due to the pressure of the upper layer of cement in the silo, the pores between particles will also be reduced, accelerating the rearrangement and densification of particles to form a dense mass. At this time, when the cement is metered and discharged from the silo, the caked cement may show the phenomenon of "empty material" or "sudden gush", resulting in the distortion of the data collected by the weighing sensor and then inaccurate data collection.

[0005] Therefore, the present invention provides an automatic blanking metering device for engineering materials. Summary of the Invention

[0006] The technical solution adopted by the present invention to solve its technical problems is: An automatic blanking metering device for engineering materials of the present invention includes a silo, legs, and a columnar sensor located between the legs and the silo; A sieve cone is fixedly installed inside the silo, and a sieve retaining frame with an L-shaped cross-section is fixedly installed on the outer wall of the sieve cone; A control disk is slidably installed inside the silo, and a crushing disk is rotatably installed inside the control disk; A first partition table is rotatably installed inside the silo, a second partition table is arranged inside the first partition table, there is a grinding port between the first partition table and the second partition table, and the top opening diameter of the grinding port is larger than the bottom opening diameter; The screening and blocking frame is provided with a material leakage opening, and a blocking block is slidably installed inside the material leakage opening. The blocking block is slidably installed at the bottom end of the crushing disc. A transmission disc is movably installed inside the material bin. The transmission disc is slidably installed at the top end of the control disc. The sliding of the transmission disc is controlled by an electric push rod, and the rotation of the transmission disc is controlled by a transmission component.

[0007] The transmission component includes a first toothed ring, a rubber pad, and a transmission toothed column. The transmission toothed column is rotatably installed inside the material bin. The first toothed ring is rotatably installed on the inner wall of the material bin and meshes with the top end of the transmission toothed column. The rubber pad is fixedly installed on the outer wall of the transmission disc to increase the friction between the outer wall of the transmission disc and the inner wall of the first toothed ring.

[0008] A second toothed ring is fixedly installed on the outer wall of the first partition platform. The second toothed ring meshes with the bottom end of the transmission toothed column. The top end of the transmission toothed column is fixedly connected to the output shaft of the driving motor.

[0009] Guide rods are fixedly installed on the outer wall of the rubber pad. Annular guide grooves for the guide rods to slide are provided on the inner wall of the material bin. Vertical guide grooves for the guide rods to slide are provided inside the material bin. The annular guide grooves are communicated with the vertical guide grooves.

[0010] A positioning ring is rotatably installed inside the control disc. The bottom end of the positioning ring is fixedly connected to the top end of the crushing disc. A third toothed ring is fixedly installed on the outer wall of the positioning ring. A transmission cylinder is rotatably installed inside the control disc. A transmission gear meshing with the third toothed ring is fixedly installed on the outer wall of the transmission cylinder.

[0011] A spiral groove is provided on the inner wall of the transmission cylinder. A transmission shaft is elastically installed inside the transmission cylinder. A guide block is fixedly installed on the outer wall of the transmission shaft. One end of the guide block extends into the spiral groove.

[0012] The top end of the transmission shaft extends out of the top end of the transmission cylinder. A top pressure spring is arranged between the control disc and the transmission disc to prevent the transmission shaft from being in contact with the transmission disc through elastic potential energy.

[0013] The bottom end of the control disc is fixedly connected with a pressing spring. The other end of the pressing spring abuts against the top end of the screening and blocking frame.

[0014] The elastic potential energy of the top pressure spring is greater than that of the pressing spring.

[0015] An annular sliding groove is provided on the top end of the transmission disc. The output end of the electric push rod extends into the annular sliding groove and is slidably connected with the transmission disc.

[0016] The beneficial effects of the present invention are as follows: 1. An automatic engineering material feeding and metering device according to the present invention screens cement through a screening cone. Unqualified agglomerated cement slides down the surface of the screening cone onto the screening retaining frame. Subsequently, the electric push rod is controlled to enable the crushing disc to crush the agglomerated cement once by pressing. Then, the electric push rod is used to control the transmission disc to slide upward, connecting the transmission disc with the first toothed ring, pushing the agglomerated cement on the surface of the screening retaining frame into the leakage opening and then into the grinding opening. Further, through the rotation of the first separation platform, the agglomerated cement that has been crushed once is crushed a second time. By crushing the cement twice, it is possible to avoid problems such as empty feeding or sudden gushing caused by cement agglomeration, resulting in distorted collected data, and further improving the accuracy of the columnar sensor metering.

[0017] 2. An automatic engineering material feeding and metering device according to the present invention, when the transmission disc moves downward and presses downward on the transmission shaft, at this time the transmission shaft will drive the guide block to slide inside the spiral groove, enabling the transmission shaft to drive the third toothed ring to rotate through the transmission gear, thereby realizing the rotation of the crushing disc after squeezing the agglomerated cement, and ensuring the stability of the secondary crushing of the agglomerated cement by improving the effect of the primary crushing of the agglomerated cement. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 is a perspective view of the present invention; Figure 2 is a cross-sectional view of the material bin in the present invention; Figure 3 is in the present invention Figure 2 the enlarged view at A; Figure 4 is a schematic structural diagram of the screening cone in the present invention; Figure 5 is in the present invention Figure 4 the enlarged view at B; Figure 6 is a schematic structural diagram of the stop block in the present invention; Figure 7 is in the present invention Figure 6 the enlarged view at C; Figure 8 is a schematic structural diagram of the annular guide groove in the present invention; Figure 9 is in the present invention Figure 8 the enlarged view at D; Figure 10 is a schematic installation diagram of the stop block in the present invention.

[0020] In the figure: 1. Silo; 2. Sieving cone; 3. Annular guiding groove; 4. First separating platform; 5. Driving tooth column; 6. Driving motor; 7. Electric push rod; 8. Driving disc; 9. First tooth ring; 10. Guide rod; 11. Vertical guiding groove; 12. Second separating platform; 13. Grinding opening; 14. Sieving barrier frame; 15. Block; 16. Second tooth ring; 17. Positioning ring; 18. Control disc; 19. Top pressure spring; 20. Transmission shaft; 21. Guide block; 22. Spiral groove; 23. Transmission gear; 24. Pressing spring; 25. Crushing disc; 26. Transmission cylinder; 27. Leakage opening; 28. Rubber pad; 29. Third tooth ring; 30. Ring-shaped sliding groove. Detailed implementation manners

[0021] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0022] As Figures 1 to 10 shown, an automatic engineering material feeding and metering device described in an embodiment of the present invention includes a silo 1, legs, and a columnar sensor located between the legs and the silo 1; A conical discharge port is provided at the bottom of the silo 1, and an electromagnetic valve needs to be provided inside the discharge port for linkage with the columnar sensor to facilitate metering the flow rate of cement discharged (a technical means well known to those skilled in the art, and will not be elaborated here).

[0023] A sieving cone 2 is fixedly installed inside the silo 1, and a sieving barrier frame 14 with an L-shaped cross-section is fixedly installed on the outer wall of the sieving cone 2; The top of the sieving cone 2 is a tip, and a plurality of holes for the passage of cement are provided on the surface of the sieving cone 2. The outer wall of the sieving cone 2 slopes downward. When the cement enters the inside of the silo 1, it will first fall on the sieving cone 2. Through the height difference, some caked cement can be scattered, and at this time, the uncaked cement can enter the inside of the silo 1 through the holes for storage.

[0024] The caked cement that does not pass through the holes will roll downward on the outer wall of the sieving cone 2 into the sieving barrier frame 14 and wait to be broken.

[0025] A control disc 18 is slidably installed inside the silo 1, and a crushing disc 25 is rotatably installed inside the control disc 18 (as Figure 7 shown). When the bottom surface of the crushing disc 25 slides towards the top surface of the sieving barrier frame 14, the caked cement falling on the sieving barrier frame 14 can be extruded; When the control disc 18 drives the crushing disc 25 to slide into the inside of the sieving barrier frame 14, at this time, through the top pressure of the crushing disc 25 towards the sieving barrier frame 14, the caked cement located between the crushing disc 25 and the sieving barrier frame 14 can be broken for the first time.

[0026] A material screening and blocking frame 14 is provided with a material leakage opening 27, and a blocking block 15 is slidably installed inside the material leakage opening 27. The blocking block 15 is slidably installed at the bottom end of the grinding disk 25; When the blocking block 15 is located inside the material leakage opening 27, the cement on the material screening and blocking frame 14 will be blocked at this time. When the blocking block 15 slides out from the material leakage opening 27, the cement located on the material screening and blocking frame 14 will continue to fall through the material leakage opening 27.

[0027] A first partition platform 4 is rotatably installed inside the material bin 1. A second partition platform 12 is arranged inside the first partition platform 4. There is a grinding opening 13 between the first partition platform 4 and the second partition platform 12. The top opening diameter of the grinding opening 13 is larger than the bottom opening diameter; Both the first partition platform 4 and the second partition platform 12 are frustum-shaped, and the top and bottom ends of the first partition platform 4 and the second partition platform 12 are both open. Therefore, when the unagglomerated cement passes through the holes on the screening cone 2, it will fall into the inside of the second partition platform 12 and finally be stored at the bottom of the material bin 1.

[0028] The grinding opening 13 formed between the first partition platform 4 and the second partition platform 12 can receive the once-crushed cement discharged from the material leakage opening 27. At this time, the once-crushed cement will enter between the first partition platform 4 and the second partition platform 12 through the grinding opening 13. Through the rotation of the first partition platform 4, the once-crushed cement can be secondarily crushed. The cement after being once-crushed is more likely to enter the grinding opening 13. When the once-crushed cement is discharged from the bottom end of the grinding opening 13, the secondary crushing will be completed. By secondarily crushing the cement, it is possible to avoid problems such as the cement agglomerating and causing empty material or sudden gushing phenomena, resulting in distorted collected data.

[0029] A transmission disk 8 is movably installed inside the material bin 1. The transmission disk 8 is slidably installed at the top end of the control disk 18. The sliding of the transmission disk 8 is controlled by an electric push rod 7, and the rotation of the transmission disk 8 is controlled by a transmission component.

[0030] The transmission disk 8 is connected to the control disk 18 through a connecting rod. The connecting rod penetrates the control disk 18. By providing the connecting rod, when the transmission disk 8 rotates, the control disk 18 can be driven to rotate simultaneously.

[0031] The top end of the transmission disk 8 is provided with an annular sliding groove 30. The output end of the electric push rod 7 extends into the annular sliding groove 30 and is slidably connected to the transmission disk 8.

[0032] The electric push rod 7 can drive the transmission disk 8 to slide up or down inside the material bin 1. By providing the transmission component, the rotation of the transmission disk 8 can be controlled. The annular sliding groove 30 provided at the top of the transmission disk 8 will not affect the electric push rod 7 when the transmission component controls the rotation of the transmission disk 8.

[0033] When it is necessary to perform a primary crushing on the agglomerated cement on the screening frame 14, the electric push rod 7 is used to control the driving disk 8 to slide downward until the driving disk 8 fits against the control disk 18, which will simultaneously drive the crushing disk 25 to slide toward the screening frame 14. The agglomerated cement can be crushed by pressing. Subsequently, the driving disk 8 is controlled to rotate through the transmission assembly. At this time, the crushing disk 25 will rotate while tightly pressing the agglomerated cement, further assisting in the primary crushing of the agglomerated cement (since the stop block 15 is slidably installed at the bottom end of the crushing disk 25, when the crushing disk 25 rotates, even if the stop block 15 is located within the material leakage port 27, it will not affect the rotation of the crushing disk 25).

[0034] When the cement is conveyed into the interior of the silo 1, first, the provided screening cone 2 is used to perform a simple screening on the cement. The qualified cement passes through the holes on the screening cone 2 and falls into the bottom of the silo 1 for storage. The unqualified agglomerated cement slides down the surface of the screening cone 2 onto the screening frame 14. Subsequently, the electric push rod 7 is controlled to make the driving disk 8 drive the crushing disk 25 to slide toward the screening frame 14, and the agglomerated cement is crushed once by pressing. Subsequently, in cooperation with the transmission assembly, the driving disk 8 is controlled to rotate, so that the control disk 18 drives the crushing disk 25 to rotate on the screening frame 14, further improving the effect of the primary crushing of the agglomerated cement. Subsequently, the electric push rod 7 is used to control the driving disk 8 to slide upward until the crushing disk 25 drives the stop block 15 to just slide out of the material leakage port 27. Subsequently, the transmission assembly is used to control the crushing disk 25 to rotate. At this time, the stop block 15 will rotate along the surface of the screening frame 14, and at this time, the agglomerated cement that has been crushed once can be pushed into the material leakage port 27. Subsequently, the cement that has been crushed once will enter the grinding port 13. Through the rotation of the first partition platform 4, the agglomerated cement that has been crushed once can be crushed a second time. When the cement that has been crushed once is discharged from the bottom end of the grinding port 13, the secondary crushing is completed. By performing secondary crushing on the cement, it is possible to avoid problems such as empty feeding or sudden gushing caused by cement agglomeration, resulting in distorted collected data, and further improve the accuracy of the column type sensor measurement.

[0035] As a preferred embodiment of the present invention, the transmission assembly includes a first gear ring 9, a rubber pad 28, and a transmission gear column 5. The transmission gear column 5 is rotatably installed inside the silo 1. The first gear ring 9 is rotatably installed on the inner wall of the silo 1 and meshes with the top end of the transmission gear column 5. The rubber pad 28 is fixedly installed on the outer wall of the driving disk 8 to increase the friction between the outer wall of the driving disk 8 and the inner wall of the first gear ring 9.

[0036] Gears are provided at both the top and bottom of the transmission gear column 5. When the transmission gear column 5 rotates, it will drive the first toothed ring 9 to rotate inside the silo 1. The electric push rod 7 drives the transmission disc 8 to slide upward until the transmission disc 8 slides into the first toothed ring 9. At this time, the transmission disc 8 increases the friction with the first toothed ring 9 through the rubber pad 28 provided on the outer wall (which has the ability to deform and can be in interference fit with the inner wall of the first toothed ring 9 to further enhance the effect of frictional transmission). At this time, the first toothed ring 9 driven by the transmission gear column 5 will drive the transmission disc 8 to rotate simultaneously.

[0037] The outer wall of the rubber pad 28 is fixedly installed with a guide rod 10. An annular guide groove 3 for the guide rod 10 to slide is provided on the inner wall of the silo 1, and a vertical guide groove 11 for the guide rod 10 to slide is provided inside the silo 1. The annular guide groove 3 is communicated with the vertical guide groove 11.

[0038] When the transmission disc 8 is located below the first toothed ring 9, at this time, the guide rod 10 will also be located inside the vertical guide groove 11. When the electric push rod 7 controls the transmission disc 8 to slide upward, the guide rod 10 will also slide from the inside of the vertical guide groove 11 to the inside of the annular guide groove 3 (when the guide rod 10 slides into the inside of the annular guide groove 3, at this time, only part of the transmission disc 8 is in contact with the inner wall of the first toothed ring 9). At this time, the first toothed ring 9 can drive the transmission disc 8 to rotate, and at the same time, the guide rod 10 will also rotate inside the annular guide groove 3.

[0039] When the rotation of the transmission disc 8 is not required, only the electric push rod 7 needs to be stopped. At this time, the transmission disc 8 will pull the electric push rod 7 under the action of gravity to maintain a downward sliding trend (a well-known technical means for those skilled in the art, not elaborated here too much), until the transmission disc 8 drives the guide rod 10 to slide from the inside of the annular guide groove 3 to the inside of the vertical guide groove 11. At this time, the transmission disc 8 will be separated from the first toothed ring 9.

[0040] Among them, multiple guide rods 10, vertical guide grooves 11 and stoppers 15 can be provided, but the quantities must be equal, and the positions of the vertical guide grooves 11 and the stoppers 15 need to correspond.

[0041] When the stopper 15 just slides out of the material leakage port 27, at this time, the positions of the transmission disc 8 and the guide rod 10 are just located inside the annular guide groove 3. When the first toothed ring 9 drives the transmission disc 8 to rotate, the cement on the sieve retaining frame 14 can be pushed into the material leakage port 27 through the stopper 15.

[0042] When the electric push rod 7 drives the transmission disc 8 to move upward and is connected to the first toothed ring 9 through the rubber pad 28, the power can be cut off.

[0043] A second toothed ring 16 is fixedly installed on the outer wall of the first separating platform 4. The second toothed ring 16 meshes with the bottom end of the driving toothed column 5, and the top end of the driving toothed column 5 is fixedly connected to the output shaft of the driving motor 6.

[0044] When the driving motor 6 is started, it will drive the first toothed ring 9 and the second toothed ring 16 to rotate simultaneously through the driving toothed column 5.

[0045] When the electric push rod 7 controls the transmission disc 8 to withdraw from the inner wall of the first toothed ring 9, at this time, the transmission disc 8 will drive the guide rod 10 to slide from the inside of the annular guide groove 3 to the inner wall of the vertical guide groove 11.

[0046] As a preferred embodiment of the present invention, a positioning ring 17 is rotatably installed inside the control disc 18. The bottom end of the positioning ring 17 is fixedly connected to the top end of the crushing disc 25. A third toothed ring 29 is fixedly installed on the outer wall of the positioning ring 17. A transmission cylinder 26 is rotatably installed inside the control disc 18. A transmission gear 23 meshing with the third toothed ring 29 is fixedly installed on the outer wall of the transmission cylinder 26.

[0047] By providing the positioning ring 17, the crushing disc 25 can always be located at the bottom of the control disc 18. By controlling the rotation of the transmission cylinder 26 and cooperating with the transmission gear 23, the third toothed ring 29 can be driven to rotate. At the same time, the positioning ring 17 can drive the crushing disc 25 to rotate. When the crushing disc 25 squeezes the agglomerated cement, at this time, by driving the crushing disc 25 to rotate through the transmission cylinder 26, the agglomerated cement can be further broken.

[0048] When the transmission disc 8 is connected to the first toothed ring 9 and drives the control disc 18 to rotate, since the transmission cylinder 26 is restricted from rotating, the third toothed ring 29 will also be restricted from rotating. Thus, the control disc 18 can drive the crushing disc 25 and the block 15 to push the cement on the sieve retaining frame 14 into the leakage port 27.

[0049] A spiral groove 22 is formed on the inner wall of the transmission cylinder 26. A transmission shaft 20 is elastically installed inside the transmission cylinder 26. A guide block 21 is fixedly installed on the outer wall of the transmission shaft 20. One end of the guide block 21 extends into the spiral groove 22.

[0050] The top end of the transmission shaft 20 extends out of the top end of the transmission cylinder 26. A top pressure spring 19 is arranged between the control disc 18 and the transmission disc 8 for preventing the transmission shaft 20 from being in contact with the transmission disc 8 through elastic potential energy.

[0051] By providing the top pressure spring 19, the transmission disc 8 and the control disc 18 can be kept in a separated tendency. When the top pressure spring 19 is not deformed, the top end of the transmission shaft 20 will not be in contact with the bottom end of the transmission disc 8.

[0052] A connecting spring is provided between the bottom end of the transmission shaft 20 and the transmission cylinder 26. Through the arrangement of the connecting spring, the transmission shaft 20 can drive the guide block 21 to be located at the topmost end of the spiral groove 22.

[0053] When the transmission disc 8 is connected to the first toothed ring 9 and drives the control disc 18 to rotate, the transmission disc 8 is separated from the control disc 18 by the pressing spring 19. Under the action of the connecting spring, the transmission shaft 20 will drive the guide block 21 to be located at the top of the spiral groove 22. Therefore, the transmission cylinder 26 will not rotate and cannot drive the third toothed ring 29 to rotate, so that the control disc 18 can drive the crushing disc 25 and the stop block 15 to push the cement on the screening and blocking frame 14 into the leakage port 27.

[0054] When the transmission disc 8 slides downward under the action of the electric push rod 7, it will first press the control disc 18 through the pressing spring 19 until the control disc 18 drives the crushing disc 25 to contact the screening and blocking frame 14. As the transmission disc 8 continues to move downward, the pressing spring 19 will deform and store elastic potential energy until the transmission disc 8 contacts the transmission shaft 20 and presses the transmission shaft 20 downward (the transmission shaft 20 needs to be provided with a limiting member to limit the transmission shaft 20 to only slide). At this time, the transmission shaft 20 will drive the guide block 21 to slide inside the spiral groove 22. At this time, the transmission shaft 20 will drive the third toothed ring 29 to rotate through the transmission gear 23, thereby realizing the rotation of the crushing disc 25 after squeezing the agglomerated cement. When the electric push rod 7 moves upward, through the cooperation of the guide block 21 and the spiral groove 22, the crushing disc 25 will be reset and rotated.

[0055] As a preferred embodiment of the present invention, a pressing spring 24 is fixedly connected to the bottom end of the control disc 18, and the other end of the pressing spring 24 abuts against the top end of the screening and blocking frame 14.

[0056] The purpose that one end of the pressing spring 24 far from the control disc 18 is not connected to the screening and blocking frame 14 is to avoid being subjected to excessive force when the electric push rod 7 drives the control disc 18 to move upward. And through the arrangement of the pressing spring 24, when the electric push rod 7 stops, the control disc 18 and the transmission disc 8 can be kept in a standby state and will not block the chamber of the screening and blocking frame 14.

[0057] As a preferred embodiment of the present invention, the elastic potential energy of the pressing spring 19 is greater than the elastic potential energy of the pressing spring 24.

[0058] When the elastic potential energy of the pressing spring 19 is greater than the elastic potential energy of the pressing spring 24, when the electric push rod 7 drives the transmission disc 8 to move downward, through the action of the pressing spring 19, the control disc 18 can be made to press the pressing spring 24 to deform first, in order to ensure that the crushing disc 25 first presses and breaks the agglomerated cement, and then assists in crushing the agglomerated cement by rotation.

[0059] Working principle: When the cement is conveyed into the interior of the silo 1, it is first simply screened by the set screening cone 2. The qualified cement passes through the holes on the screening cone 2 and falls into the bottom of the silo 1 for storage. The unqualified agglomerated cement slides down the surface of the screening cone 2 onto the screening retaining frame 14. Subsequently, the electric push rod 7 is controlled to drive the driving disk 8 to drive the crushing disk 25 to slide towards the screening retaining frame 14, and the agglomerated cement is crushed once by pressing. As the driving disk 8 continues to move downward and presses the transmission shaft 20 downward, at this time, the transmission shaft 20 will drive the guide block 21 to slide inside the spiral groove 22, so that the transmission shaft 20 drives the third toothed ring 29 to rotate through the transmission gear 23, thereby realizing the rotation of the crushing disk 25 after squeezing the agglomerated cement, further improving the effect of the first crushing of the agglomerated cement. Subsequently, the electric push rod 7 is used to control the driving disk 8 to slide upward, so that the driving disk 8 is connected to the first toothed ring 9, and the crushing disk 25 drives the stop block 15 to push the agglomerated cement on the surface of the screening retaining frame 14 into the leakage port 27. Subsequently, the once-crushed cement will enter the grinding port 13, and then through the rotation of the first partition table 4, the once-crushed agglomerated cement is crushed a second time. By crushing the cement a second time, it is possible to avoid problems such as empty material or sudden gushing caused by cement agglomeration, resulting in distorted collected data, and further improve the accuracy of the column type sensor measurement.

[0060] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An automated engineering material unloading metering device, comprising a silo (1), a support leg, and a column sensor located between the support leg and the silo (1); Features: A screening cone (2) is fixedly mounted inside the silo (1), and a screening frame (14) with an L-shaped cross section is fixedly mounted on the outer wall of the screening cone (2); A control disk (18) is slidably mounted inside the silo (1), and a crushing disk (25) is rotatably mounted inside the control disk (18); A first partition table (4) is rotatably mounted inside the silo (1), a second partition table (12) is arranged inside the first partition table (4), a grinding opening (13) is provided between the first partition table (4) and the second partition table (12), and a top opening diameter of the grinding opening (13) is larger than a bottom opening diameter; The screening frame (14) is provided with a material leakage opening (27), a stopper (15) is slidably mounted inside the material leakage opening (27), and the stopper (15) is slidably mounted on the bottom end of the crushing disc (25); A transmission disc (8) is movably installed inside the silo (1), and the transmission disc (8) is slidably installed on the top of the control disc (18). The sliding of the transmission disc (8) is controlled by an electric push rod (7), and the rotation of the transmission disc (8) is controlled by a transmission assembly.

2. The automated engineering material unloading and metering device according to claim 1 is characterized in that: The transmission assembly comprises a first gear ring (9), a rubber pad (28) and a transmission gear column (5); the transmission gear column (5) is rotatably mounted inside the silo (1); the first gear ring (9) is rotatably mounted on the inner wall of the silo (1) and meshes with the top end of the transmission gear column (5); the rubber pad (28) is fixedly mounted on the outer wall of the transmission disc (8) and is used to increase the friction between the outer wall of the transmission disc (8) and the inner wall of the first gear ring (9).

3. The automatic engineering material unloading and metering device according to claim 2 is characterized in that: A second gear ring (16) is fixedly mounted on the outer wall of the first partition table (4), the second gear ring (16) meshes with the bottom end of the transmission gear column (5), and the top end of the transmission gear column (5) is fixedly connected to the output shaft of the drive motor (6).

4. The automatic engineering material unloading and metering device according to claim 2 is characterized in that: A guide rod (10) is fixedly mounted on the outer wall of the rubber pad (28), an annular guide groove (3) for the guide rod (10) to slide is provided on the inner wall of the silo (1), a vertical guide groove (11) for the guide rod (10) to slide is provided inside the silo (1), and the annular guide groove (3) is connected to the vertical guide groove (11).

5. The automated engineering material unloading and metering device according to claim 1 is characterized in that: A positioning ring (17) is rotatably mounted inside the control disk (18), the bottom end of the positioning ring (17) is fixedly connected to the top end of the crushing disk (25), a third toothed ring (29) is fixedly mounted on the outer wall of the positioning ring (17), a transmission cylinder (26) is rotatably mounted inside the control disk (18), and a transmission gear (23) meshing with the third toothed ring (29) is fixedly mounted on the outer wall of the transmission cylinder (26).

6. The automatic engineering material unloading and metering device according to claim 5 is characterized in that: The inner wall of the transmission cylinder (26) is provided with a spiral groove (22), a transmission shaft (20) is elastically mounted inside the transmission cylinder (26), a guide block (21) is fixedly mounted on the outer wall of the transmission shaft (20), and one end of the guide block (21) extends into the interior of the spiral groove (22).

7. The automated engineering material unloading and metering device according to claim 6, characterized in that: The top end of the transmission shaft (20) extends out of the top end of the transmission cylinder (26), and a pressure spring (19) is provided between the control plate (18) and the transmission plate (8) for preventing the transmission shaft (20) from being in contact with the transmission plate (8) through elastic potential energy.

8. The automated engineering material unloading and metering device according to claim 7, characterized in that: A pressure spring (24) is fixedly connected to the bottom end of the control disk (18), and the other end of the pressure spring (24) is in contact with the top end of the screening frame (14).

9. The automatic engineering material unloading and metering device according to claim 8, characterized in that: The elastic potential energy of the top pressure spring (19) is greater than the elastic potential energy of the counter pressure spring (24).

10. The automatic engineering material unloading and metering device according to claim 1, characterized in that: An annular sliding groove (30) is provided at the top end of the transmission disc (8), and the output end of the electric push rod (7) extends into the interior of the annular sliding groove (30) and is slidably connected to the transmission disc (8).

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