Feed raw material mixing and stirring equipment

Abstract

The utility model provides feed raw material mixing and stirring equipment which comprises a stirring barrel, a rack and a controller, a rotating shaft is rotationally arranged in the stirring barrel, one end of the rotating shaft is in driving connection with a first motor, a plurality of stirring blades are arranged on the rotating shaft, a discharging valve is arranged at the bottom of the stirring barrel, a channel is formed in the side face of the bottom of the stirring barrel, and a sampling mechanism is arranged in the channel in a sliding mode. A first electric push rod and a second electric push rod are oppositely arranged on the bottom face of the rotating disc, the telescopic end of the first electric push rod is connected with a pressing block, the telescopic end of the second electric push rod is connected with a pressing head, and stress strain gauges are arranged on the side faces of the telescopic ends of the first electric push rod and the second electric push rod. The first electric push rod drives the pressure head to press and form a feed mixture in the sampling mechanism, the second electric push rod drives the pressure head to perform a puncture test on the material, and the stirring effect of the material is judged according to the test result and puncture force data, so that the problem of relatively large error caused by manual subjective judgment is avoided, and the consistency of the mixing and stirring effects is favorably kept.

Description

Technical Field

[0001] The utility model relates to the technical field of feed production, in particular to feed raw material mixing and stirring equipment. Background Art

[0002] Feed is a kind of food that can provide nutrition for livestock. Feed usually includes soybean, soybean meal, corn, fish meal, amino acid, miscellaneous meal, whey powder, oil, meat and bone meal, grain, feed additives, etc. The production process of feed usually includes the following main steps: raw material reception, batching process, crushing process, mixing process, granulation process and packaging process. The mixing process of feed raw materials is a relatively important process in feed production, which is mainly completed by a mixing and stirring machine. Its working principle is usually to fully mix the raw materials by rotating or stirring blades to ensure that various components are evenly distributed. The mixing and stirring of feed raw materials directly affects the quality of feed pellets in the next process, that is, the granulation process. In the prior art, the feed raw material mixing and stirring equipment has the following problems: the feed raw material mixing and stirring equipment directly adds the raw materials into the equipment according to the ratio of various raw materials for stirring. After a predetermined time of mixing and stirring, the quality of the mixing and stirring mainly depends on observing the appearance of the mixture, or using hand-kneading the mixture and judging whether the mixing and stirring is completed by hardness and humidity. The effect of each mixing and stirring depends on subjective judgment, and the error is large and cannot be consistent, thereby affecting the effect of subsequent feed granulation. Utility Model Content

[0003] In view of this, the utility model proposes a feed raw material mixing and stirring device to solve the above-mentioned problems.

[0004] The technical solution of the utility model is achieved in this way:

[0005] A feed raw material mixing and stirring device comprises a mixing drum, a frame and a controller, wherein the frame is arranged on the side of the mixing drum, a rotating shaft is rotatably arranged in the mixing drum, one end of the rotating shaft is rotatably connected to the mixing drum, and the other end passes through the mixing drum and is driven by a first motor, the first motor is arranged on the top surface of the mixing drum, a plurality of mixing blades are arranged on the rotating shaft, a discharging valve is arranged at the bottom of the mixing drum, a channel is arranged on the side of the bottom of the mixing drum, a sampling mechanism is slidably arranged in the channel, a rotating disk is arranged on the bottom surface of the top of the frame, the output shaft of the second motor is driven by the rotating disk, the second motor is arranged on the top of the frame, a first electric push rod and a second electric push rod are arranged oppositely near the edge of the bottom surface of the rotating disk, a pressure block is connected to the telescopic end of the first electric push rod, a pressure head is connected to the telescopic end of the second electric push rod, and stress strain gauges are arranged on the side surfaces of the telescopic ends of the first electric push rod and the second electric push rod, and the controller is arranged on the top surface of the frame and is electrically connected to the first motor, the second motor, the first electric push rod, the second electric push rod, the sampling mechanism, the stress strain gauge and the pressure head.

[0006] Preferably, the sampling mechanism includes a slider, a receiving groove, a copper plate and a third electric push rod, the slider is provided with a receiving groove on the top, the copper plate is provided at the bottom of the receiving groove, the telescopic end of the third electric push rod is connected to the side of the slider, the third electric push rod is provided on the side of the frame, and the controller is electrically connected to the third electric push rod and the copper plate.

[0007] Preferably, a groove is provided at the top of the channel, a sealing strip is provided in the groove, and the bottom of the sealing strip abuts against the top of the slider.

[0008] Preferably, it also includes a water tank, which is arranged on the top of the mixing drum, the bottom of the water tank is connected to the top of the mixing drum, and a quantitative valve is arranged at the bottom of the water tank.

[0009] Preferably, the pressing head is made of a conductive material and has a conical shape.

[0010] Preferably, it also includes a feed hopper, which is arranged on the top of the mixing drum, and the bottom of the feed hopper is conical and is provided with a feed valve.

[0011] Preferably, it further comprises support legs, and a plurality of support legs are provided at the bottom of the mixing drum and the bottom of the frame, and support pads are connected to the ends of the support legs.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] ① The first electric push rod drives the pressure head to compact the feed mixture in the sampling mechanism, and the second electric push rod drives the pressure head to perform a puncture test on the material. The stirring effect of the material is judged according to the test results and the puncture force data, avoiding the problem of large errors in manual subjective judgment, which is conducive to maintaining the consistency of the mixing effect;

[0014] ② A water tank is provided to realize quantitative addition of clean water, which is convenient for mixing and stirring the feed raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only preferred embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 This is a three-dimensional structural schematic diagram of a feed raw material mixing and stirring device of the utility model;

[0017] Figure 2 This is a schematic cross-sectional structure diagram of a feed raw material mixing and stirring device of the utility model;

[0018] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0019] Figure numerals: 1. mixing drum; 2. feed hopper; 3. first motor; 4. water tank; 5. second motor; 6. turntable; 7. controller; 8. copper plate; 9. slider; 10. receiving tank; 11. first electric push rod; 12. second electric push rod; 13. pressure block; 14. stress strain gauge; 15. third electric push rod; 16. pressure head; 17. frame; 18. rotating shaft; 19. mixing blade; 20. feed valve; 21. metering valve; 22. discharge valve; 23. channel; 24. support leg; 25. support pad; 26. sealing strip. DETAILED DESCRIPTION

[0020] In order to better understand the technical content of the present invention, a specific embodiment is provided below, and the present invention is further described in conjunction with the accompanying drawings.

[0021] See also Figures 1 to 3 The utility model provides a feed raw material mixing and stirring device, including a mixing drum 1, a frame 17 and a controller 7. The frame 17 is arranged on the side of the mixing drum 1. The frame 17 is in an I-shape and provides a supporting function. A rotating shaft 18 is rotatably arranged in the mixing drum 1. The mixing drum 1 is in a cylindrical shape. One end of the rotating shaft 18 is rotatably connected to the mixing drum 1, and the other end passes through the mixing drum 1 and is driven by a first motor 3. The first motor 3 is arranged on the top surface of the mixing drum 1. A plurality of mixing blades 19 are arranged on the rotating shaft 18. A discharge valve 22 is arranged at the bottom of the mixing drum 1. A channel 23 is arranged on the side of the bottom of the mixing drum 1. A sampling mechanism is slidably arranged in the channel 23. A turntable 6 is arranged on the bottom surface of the top of the frame 17. The turntable 6 is driven by the output shaft of the second motor 5. The second motor 5 is arranged on the top of the frame 17. The motor 5 adopts a DC stepping motor, which can accurately control the rotation angle. The first electric push rod 11 and the second electric push rod 12 are relatively arranged near the edge of the bottom surface of the turntable 6. The telescopic end of the first electric push rod 11 is connected to a pressure block 13, and the pressure block 13 is in the shape of a round cake. The telescopic end of the second electric push rod 12 is connected to a pressure head 16. The side surfaces of the telescopic ends of the first electric push rod 11 and the second electric push rod 12 are both provided with stress strain gauges 14. The stress strain gauges 14 are used to detect the forces acting on the telescopic ends of the first electric push rod 11 and the second electric push rod 12. The controller 7 is arranged on the top surface of the frame 17 and is electrically connected to the first motor 3, the second motor 5, the first electric push rod 11, the second electric push rod 12, the sampling mechanism, the stress strain gauges 14 and the pressure head 16. The controller adopts a 32-bit low-power microprocessor with model STM32-L0.

[0022] When the feed raw material mixing and stirring equipment is working, firstly, various feed raw materials are put into the stirring drum 1 according to a certain ratio, and then the first motor 3 is started. The rotation of the first motor 3 drives the rotating shaft 18 to rotate, and the rotation of the rotating shaft 18 drives the stirring blade 19 to rotate. The feed raw materials are mixed and stirred under the stirring action of the stirring blade 19. After the preset time is reached, the sampling mechanism is started, and the sampling mechanism takes the material out of the channel 23. Then the second motor 5 is started, and the rotation of the second motor 5 drives the lower turntable 6 to rotate. The rotation of the turntable 6 drives the first electric push rod 11 to rotate, and the first electric push rod 11 is rotated to the top of the sampling mechanism, and then the first electric push rod 11 is started. The telescopic end of the first electric push rod 11 extends to drive the pressure block 13 to descend. After the descending pressure block 13 abuts against the material, the stress strain gauge 14 will begin to detect pressure. As the pressure block 13 continues to descend, the pressure continues to increase. When the pressure After the force reaches the preset value, the first electric push rod 11 is stopped. At this time, the pressing block 13 presses the material into shape, and then the first electric push rod 11 is started and reset; after the first electric push rod 11 is reset, the second motor 5 is started again, and the second motor 5 rotates to drive the lower turntable 6 to rotate, and the turntable 6 rotates to drive the second electric push rod 12 to rotate the second electric push rod 12 to the top of the sampling mechanism, and then the second electric push rod 12 is started. The extension of the telescopic end of the second electric push rod 12 drives the pressure head 16 to descend, and the pressure head 16 descends and penetrates the material. The puncture force detected by the stress strain gauge 14 is transmitted to the controller 7. If the puncture force is within the predetermined range, the controller 7 determines that the mixing effect of the feed raw material is qualified, and starts the discharge valve 22 to discharge the material; if the puncture force is not within the predetermined range, the controller 7 determines that the mixing effect of the feed raw material is unqualified and needs to continue mixing. Judging the mixing effect of the material based on the test results and objective puncture force data can avoid the problem of large errors in manual subjective judgment, which is conducive to maintaining the consistency of the mixing effect.

[0023] Preferably, the sampling mechanism includes a slider 9, a receiving groove 10, a copper plate 8 and a third electric push rod 15. The slider 9 is provided with a receiving groove 10 on the top, and the receiving groove 10 and the pressing block 13 match each other in shape and size. The copper plate 8 is provided at the bottom of the receiving groove 10. The side of the slider 9 is connected to the telescopic end of the third electric push rod 15. The third electric push rod 15 is arranged on the side of the frame 17, and the controller 7 is electrically connected to the third electric push rod 15 and the copper plate 8.

[0024] After the feed raw material mixing and stirring equipment completes the mixing and stirring operation, the third electric push rod 15 is started, and the telescopic end of the third electric push rod 15 is extended to drive the slider 9 to slide into the mixing drum 1 along the channel 23, and the material in the mixing drum 1 enters the receiving groove 10 at the top of the slider 9, and then the third electric push rod 15 is started, and the telescopic end of the third electric push rod 15 is shortened to drive the slider 9 to slide out of the mixing drum 1 along the channel 23, and then stop at a predetermined position. After the pressing block 13 compacts the material into shape, the telescopic end of the second electric push rod 12 is extended to drive the pressure head 16 to descend, and the pressure head 16 descends and penetrates the material. When the pressure head 16 penetrates the material, the pressure head 16 will contact the copper plate 8 at the bottom of the receiving groove 10, and the pressure head 16 and the copper plate 8 form a closed circuit. The controller 7 stops the stress strain gauge 14 from detecting, and stops the second electric push rod 12 at the same time, and then starts the second electric push rod 12, and the telescopic end of the second electric push rod 12 is shortened to drive the pressure head 16 to rise to the initial position, completing the reset operation.

[0025] Preferably, a groove is provided at the top of the channel 23 , a sealing strip 26 is provided in the groove, and the bottom of the sealing strip 26 abuts against the top of the slider 9 .

[0026] When the sampling mechanism is working, the slider 9 slides from the mixing drum 1 through the channel 23 to the outside, and the bottom of the sealing strip 26 abuts against the top of the slider 9, which can keep the mixing drum 1 sealed, not only preventing material from overflowing, but also scraping off excess material, so that the volume of each sampling is the same.

[0027] Preferably, it further comprises a water tank 4, which is arranged at the top of the mixing drum 1, the bottom of the water tank 4 is connected to the top of the mixing drum 1, and a quantitative valve 21 is arranged at the bottom of the water tank 4.

[0028] When the feed raw material mixing and stirring device is working, when the feed raw material is put into the mixing drum 1 and clean water needs to be added, the quantitative valve 21 at the bottom of the water tank 4 is started to add clean water in a quantitative manner, which is beneficial to the mixing and stirring operation of various feed raw materials.

[0029] Preferably, the pressing head 16 is made of a conductive material and is conical in shape.

[0030] The material of the pressure head 16 is conductive material. When the feed raw material mixing and stirring equipment is working, after the pressure block 13 presses the material into shape, the telescopic end of the second electric push rod 12 extends to drive the pressure head 16 to descend, and the pressure head 16 descends and penetrates the material. When the pressure head 16 penetrates the material, the pressure head 16 will contact the copper plate 8 at the bottom of the accommodating tank 10, and the pressure head 16 and the copper plate 8 form a closed circuit, so as to determine that the pressure head 16 has penetrated the material and avoid the pressure head 16 continuing to descend and damaging the copper plate 8. The pressure head 16 is conical, which can effectively reduce the puncture force and avoid the problem of excessive puncture force causing damage to the copper plate 8.

[0031] Preferably, it further comprises a feed hopper 2 , which is arranged on the top of the mixing drum 1 , and the bottom of the feed hopper 2 is conical and is provided with a feed valve 20 .

[0032] The feed hopper 2 is arranged at the top of the mixing drum 1. When filling, the feed raw materials are first placed in the feed hopper 2. The bottom of the feed hopper 2 is conical. The feed raw materials can be concentrated in the middle of the bottom along the inclined bottom. After the feed valve 20 is started, the feed raw materials fall into the mixing drum 1. After all the raw materials enter the mixing drum 1, the feed valve 20 is closed to prevent the raw materials from being thrown out during mixing.

[0033] Preferably, it further comprises support legs 24 , and a plurality of support legs 24 are provided at the bottom of the mixing drum 1 and the bottom of the frame 17 , and support pads 25 are connected to the ends of the support legs 24 .

[0034] A plurality of support legs 24 are provided at the bottom of the mixing drum 1 and the bottom of the frame 17. The function of the support legs 24 is to provide support for the mixing drum 1 and the frame 17 so that the mixing drum can remain firmly supported on the ground. The ends of the support legs 24 are connected to support pads 25, which are made of soft rubber material to reduce vibration and noise generated by mixing.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A feed raw material mixing and stirring device, characterized in that: The invention comprises a mixing drum, a frame and a controller, wherein the frame is arranged on the side of the mixing drum, a rotating shaft is rotatably arranged in the mixing drum, one end of the rotating shaft is rotatably connected with the mixing drum, the other end passes through the mixing drum and is driven by a first motor, the first motor is arranged on the top surface of the mixing drum, a plurality of mixing blades are arranged on the rotating shaft, a discharging valve is arranged at the bottom of the mixing drum, a channel is arranged on the side of the bottom of the mixing drum, a sampling mechanism is slidably arranged in the channel, a turntable is arranged on the bottom surface of the top of the frame, the turntable is driven by the output shaft of the second motor, the second motor is arranged on the top of the frame, a first electric push rod and a second electric push rod are arranged on the bottom surface of the turntable near the edge, a pressure block is connected to the telescopic end of the first electric push rod, a pressure head is connected to the telescopic end of the second electric push rod, stress strain gauges are arranged on the side surfaces of the telescopic ends of the first electric push rod and the second electric push rod, and the controller is arranged on the top surface of the frame and is electrically connected to the first motor, the second motor, the first electric push rod, the second electric push rod, the sampling mechanism, the stress strain gauge and the pressure head.

2. A feed raw material mixing and stirring device according to claim 1, characterized in that: The sampling mechanism includes a slider, a receiving groove, a copper plate and a third electric push rod. The top of the slider is provided with a receiving groove, the bottom of the receiving groove is provided with a copper plate, the side of the slider is connected to the telescopic end of the third electric push rod, the third electric push rod is arranged on the side of the frame, and the controller is electrically connected to the third electric push rod and the copper plate.

3. A feed raw material mixing and stirring device according to claim 1, characterized in that: A groove is arranged at the top of the channel, a sealing strip is arranged in the groove, and the bottom of the sealing strip abuts against the top of the sliding block.

4. A feed raw material mixing and stirring device according to claim 1, characterized in that: It also includes a water tank, which is arranged on the top of the mixing drum. The bottom of the water tank is connected to the top of the mixing drum, and a quantitative valve is arranged at the bottom of the water tank.

5. A feed raw material mixing and stirring device according to claim 1, characterized in that: The pressing head is made of conductive material and is in a conical shape.

6. A feed raw material mixing and stirring device according to claim 1, characterized in that: The mixing drum also includes a feed hopper, which is arranged on the top of the mixing drum. The bottom of the feed hopper is conical and is provided with a feed valve.

7. A feed raw material mixing and stirring device according to claim 1, characterized in that: It also includes supporting legs. The bottom of the mixing drum and the bottom of the frame are both provided with a plurality of supporting legs, and the ends of the supporting legs are connected with supporting pads.

Images