Animal feed screening device

Abstract

This invention relates to the field of feed screening device technology, specifically disclosing a livestock feed screening device, including a vibrating screen body, a discharge port, and screens; it also includes a feed hopper; a collection box; a detection mechanism; an adjustment mechanism; and a combing mechanism. The combing mechanism is located inside the vibrating screen body. This livestock feed screening device uses the detection mechanism to detect the discharge volume of multiple discharge ports per unit time. When the detection mechanism detects a decrease in the discharge volume of the discharge port per unit time, the adjustment mechanism adjusts the falling speed of the feed in the feed hopper to prevent the feed from being fed too much and discharged too little, which would cause a large amount of feed to accumulate on the screens and affect screening efficiency. Furthermore, the combing mechanism combs the multiple screens to prevent feed particles from clogging the screen mesh, thus reducing the workload of workers. Workers do not need to stay near the vibrating screen body for extended periods, avoiding the health risks associated with dust generated by vibration.

Description

Technical Field

[0001] The invention relates to the technical field of feed screening devices, in particular to a livestock feed screening device. Background Art

[0002] Livestock feed refers to food supplied to livestock, poultry or aquatic animals. It is a general term for the food of all farmed animals and aims to improve the production performance and nutrient utilization rate of these animals. However, various impurities are easily mixed into the feed raw materials, such as soil, stones, grass seeds, sawdust, etc. These impurities not only affect the taste and appearance of the feed, but also pose a potential threat to the health of the animals. Therefore, before use, the staff will remove these impurities by screening to ensure the purity and safety of the feed.

[0003] Among various devices for screening feed, the rotary vibrating screen is a widely used screening equipment. Its main function is to screen and grade various granular materials to ensure the quality and uniformity of the feed. The rotary vibrating screen is mainly composed of a vibration motor, a screen, a screen box, a vibration-damping spring and other parts. When working, the granular material is placed on the screen, and the exciting force generated by the vibration motor causes the screen to vibrate periodically. The material on the screen is affected by the vibration force, begins to move, and gradually moves to the bottom of the screen; larger particles of material are blocked on the screen, while smaller materials pass through the screen and fall into the aggregate box below, thereby realizing the screening and grading of materials.

[0004] However, when the staff pours the feed on the surface of the rotary vibrating screen, the various impurities in the feed are not evenly distributed in the feed, and the particle size, shape and density of the feed are also different. As a result, after the staff pours the feed on the surface of the rotary vibrating screen, they need to adjust the pouring speed according to the screening situation of the screen surface, which not only affects the screening efficiency, but also when the staff stand next to the rotary vibrating screen to pour the feed, the dust generated by the vibration of the feed will affect the health of the staff. For this reason, we propose a livestock feed screening device. Summary of the invention

[0005] The object of the present invention is to provide a livestock feed screening device to solve the problem proposed in the above-mentioned background technology that after the staff pours the feed onto the surface of the rotary vibrating screen, they need to adjust the pouring speed according to the screening situation of the screen surface, which not only affects the screening efficiency, but also when the staff stand next to the rotary vibrating screen to pour the feed, the dust generated by the vibration of the feed will also affect the health of the staff.

[0006] To achieve the above object, the present invention provides the following technical solutions: a livestock feed screening device, comprising a rotary vibrating screen body, a discharge port and a screen, wherein a plurality of screens are provided and located inside the rotary vibrating screen body; a feed hopper, which is located above the rotary vibrating screen body and is connected to the rotary vibrating screen body; and a plurality of collecting boxes, which are provided and respectively located below the discharge port;

[0007] The detection mechanism is located between the collecting box and the discharge port, and the detection mechanism detects the discharge volume per unit time of multiple discharge ports respectively;

[0008] An adjusting mechanism, the adjusting mechanism is connected to the feed hopper, and the adjusting mechanism adjusts the falling speed of the feed in the feed hopper according to the discharge change of the discharge port detected by the detection mechanism;

[0009] The combing mechanism is located inside the main body of the rotary vibrating screen. When the detection mechanism detects that the discharge volume per unit time at the discharge port changes, the combing mechanism performs preliminary combing on the multiple screens respectively. If after the preliminary combing, the detection mechanism detects that the discharge volume per unit time at the discharge port does not change, the combing mechanism performs secondary combing on the multiple screens respectively.

[0010] Among them, the detection mechanism includes a receiving wheel located between the discharge port and the collecting box, a plurality of receiving grooves are opened on the surface of the receiving wheel, a pressure sensor is installed on the inner wall of the receiving groove, a rotating shaft is fixedly connected to the axis of the receiving wheel, support frames are respectively arranged at both ends of the receiving wheel, the rotating shaft is rotatably connected to the inner wall of the support frame, a rotating part for driving the rotating shaft to rotate periodically is arranged on the outer side of one end of the rotating shaft, and a limit part for limiting the rotation of the rotating shaft is arranged on the other end of the rotating shaft.

[0011] Among them, the rotating part includes a transmission plate fixedly connected to the end of the rotating shaft, a rotating ring is fixedly connected to the outer side of the transmission plate, a transmission gear is provided on the outer side of the rotating ring, the transmission gear is rotatably connected to the inner wall of the support frame, a one-way transmission part is provided between the transmission gear and the rotating ring, a transmission gear plate is meshed under the transmission gear, the transmission gear plate is slidably connected to the inner wall of the support frame, an electric telescopic rod 1 is fixedly connected to the outer side of the transmission gear plate, the electric telescopic rod 1 is fixedly connected to the inner wall of the support frame, and a timer is installed on the inner wall of the support frame.

[0012] Among them, the one-way transmission member includes a ratchet fixedly connected to the transmission gear, the ratchet is located on the inner side of the rotating ring, and a plurality of rubber blocks are fixedly connected to the inner side of the rotating ring. The plurality of rubber blocks are arranged at equal angles and the rubber blocks abut against the outer side of the ratchet.

[0013] Among them, the limiting member includes a limiting rod fixedly connected to the rotating shaft, the limiting rod is rotatably connected to the inner wall of the support frame, the inner wall of the limiting rod is rotatably connected to a fixing rod, one end of the fixing rod away from the limiting rod is fixedly connected to the inner wall of the support frame, a plurality of arc plates are fixedly connected to the inner side of the limiting rod, the plurality of arc plates are arranged at equal angles, and an obstruction member for limiting the arc plates is provided on the surface of the fixing rod.

[0014] Among them, the obstruction member includes two supporting blocks fixedly connected to the surface of the fixed rod, a rotating rod is rotatably connected between the two supporting blocks, a baffle is fixedly connected to the outside of the rotating rod, a control button is installed on the surface of the fixed rod, the control button is connected to the timer, a compression spring is fixedly connected to the outside of the baffle, one end of the compression spring is located on the inner wall of the fixed rod, one end of the rotating rod is fixedly connected to the limiting block, and the inner wall of the support block is provided with a limiting groove which is slidably connected to the limiting block.

[0015] Among them, the adjustment mechanism includes an adjustment rod rotatably connected to the inner wall of the feed hopper, a closing plate is fixedly connected to the outside of the adjustment rod, and a servo motor is fixedly connected to one end of the adjustment rod passing through the feed hopper. The servo motor is installed on the surface of the feed hopper and is connected to the pressure sensor.

[0016] Among them, the combing mechanism includes knocking blocks respectively located under the screen, a transmission rod is fixedly connected to the outside of the knocking block, the transmission rod is fixedly connected to the driving motor at one end away from the knocking block, a motor bin is provided on the outside of the driving motor, a sealing rod is fixedly connected to the outside of the motor bin, the sealing rod penetrates the rotary vibrating screen body, the transmission rod is rotatably connected to the inner wall of the sealing rod, a fixed box is provided on the outside of the motor bin, the fixed box is fixedly connected to the rotary vibrating screen body, an electric telescopic rod two is fixedly connected to the inner wall of the fixed box, and the electric telescopic rod two is fixedly connected to the motor bin.

[0017] Among them, the compression spring is located at one end of the inner wall of the fixed rod and is fixedly connected to an adjustment plate. The adjustment plate is slidably connected to the inner wall of the fixed rod. An oblique end is opened on the surface of the adjustment plate. An adjustment piece for adjusting the elastic force of the compression spring is provided on the side of the adjustment plate close to the oblique end.

[0018] Among them, the adjusting part includes a trapezoidal plate slidably connected to the inner wall of the fixed rod, the hypotenuse of the trapezoidal plate is close to the oblique end of the adjusting plate, the outer side of the trapezoidal plate is rotatably connected to a screw rod, one end of the screw rod passes through the inner wall of the fixed rod, and the screw rod is threadedly connected to the fixed rod.

[0019] The present invention has at least the following beneficial effects:

[0020] When in use, the present application detects the discharge volume of multiple discharge ports per unit time through the detection mechanism. When the detection mechanism detects that the discharge volume of the discharge port per unit time is reduced, the adjustment mechanism adjusts the falling speed of the feed in the feed hopper to avoid more feed being fed in and less feed being discharged from the rotary vibrating screen body, resulting in a large amount of feed being accumulated on the screen and affecting the screening efficiency. The combing mechanism performs preliminary combing on the multiple screens respectively. If, after the preliminary combing, the detection mechanism detects that the discharge volume of the discharge port per unit time has not changed, the combing mechanism performs secondary combing on the multiple screens respectively to avoid feed particles clogging the screen mesh and affecting the screening efficiency, thereby reducing the workload of staff. The staff do not need to stay near the rotary vibrating screen body for a long time, which can avoid the dust generated by the vibration affecting the health of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is an overall schematic diagram of the present invention;

[0022] Figure 2 It is a schematic cross-sectional view of the interior of the main body of the rotary vibrating screen of the present invention;

[0023] Figure 3 for Figure 2 Enlarged schematic diagram of area A in the middle;

[0024] Figure 4 This is a schematic diagram of the internal structure of the main body of the rotary vibrating screen of the present invention;

[0025] Figure 5 It is a schematic top view of the main body of the rotary vibrating screen of the present invention;

[0026] Figure 6 for Figure 5 Enlarged schematic diagram of area B in the middle;

[0027] Figure 7 It is a schematic diagram of the cross-sectional structure of the rotating member of the present invention;

[0028] Figure 8 for Figure 7 Enlarged schematic diagram of the middle C area;

[0029] Fig. 9 It is a schematic diagram of the structure of the one-way transmission member of the present invention;

[0030] Fig.10 It is a schematic diagram of the cross-sectional structure of the adjusting member of the present invention;

[0031] Fig.11 for Fig.10 Enlarged schematic diagram of the middle D area;

[0032] Fig.12 It is a schematic cross-sectional view of the obstruction member of the present invention;

[0033] Fig.13 for Fig.12 Enlarged schematic diagram of area E in the middle.

[0034] In the figure: 1, rotary vibrating screen body; 2, discharge port; 3, screen; 4, feed hopper; 5, collection box; 6, detection mechanism; 60, receiving wheel; 61, holding slot; 62, pressure sensor; 63, rotating shaft; 64, support frame; 65, rotating member; 66, limit member; 67, transmission plate; 68, rotating ring; 69, transmission gear; 610, one-way transmission member; 611, transmission gear plate; 612, electric telescopic rod 1; 613, timer; 614, ratchet; 615, rubber block; 616, limit rod; 617, fixed rod; 618, arc plate; 6 19. Obstruction piece; 620. Support block; 621. Rotating rod; 622. Baffle; 623. Control button; 624. Compression spring; 625. Limit block; 626. Limit groove; 627. Adjustment plate; 628. Oblique end; 629. Adjustment piece; 630. Trapezoidal plate; 631. Screw; 7. Adjustment mechanism; 70. Adjustment rod; 71. Closing plate; 72. Servo motor; 8. Combing mechanism; 80. Knocking block; 81. Transmission rod; 82. Drive motor; 83. Motor compartment; 84. Sealing rod; 85. Fixing box; 86. Electric telescopic rod II. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0036] See also Figures 1 to 13 The present invention provides a technical solution: a livestock feed screening device, comprising a rotary vibrating screen body 1, a discharge port 2 and a screen 3, wherein a plurality of screens 3 are provided and are located inside the rotary vibrating screen body 1; a feed hopper 4 is provided, wherein the feed hopper 4 is located above the rotary vibrating screen body 1 and is connected to the rotary vibrating screen body 1; a collecting box 5, wherein a plurality of collecting boxes 5 are provided and are respectively located below the discharge port 2; a detection mechanism 6, wherein the detection mechanism 6 is located between the collection box 5 and the discharge port 2, and the detection mechanism 6 respectively detects the discharge amount of the plurality of discharge ports 2 per unit time ; Adjusting mechanism 7, the adjusting mechanism 7 is connected to the feed hopper 4, the adjusting mechanism 7 adjusts the falling speed of the feed in the feed hopper 4 according to the discharge change of the discharge port 2 detected by the detection mechanism 6; combing mechanism 8, the combing mechanism 8 is located inside the rotary vibrating screen body 1, when the detection mechanism 6 detects the change of the discharge amount of the discharge port 2 per unit time, the combing mechanism 8 performs preliminary combing on the multiple screens 3 respectively, if after the preliminary combing, the detection mechanism 6 detects that the discharge amount of the discharge port 2 per unit time has not changed, the combing mechanism 8 performs secondary combing on the multiple screens 3 respectively.

[0037] When in use, the staff pours the livestock feed to be screened into the feed hopper 4, changes the flow area in the feed hopper 4 through the adjustment mechanism 7, and the feed falls into the surface of the screen 3 at the top of the rotary vibrating screen body 1 through the feed hopper 4. When the rotary vibrating screen body 1 is working, the exciting force generated by the internal vibration motor causes the screen 3 to vibrate periodically, and the feed is acted upon by the vibration force on the screen 3. Feed smaller than the aperture of the screen 3 will pass through the top screen 3, and the fallen feed falls into the remaining surface of the screen 3 under the action of gravity, and is further screened under vibration, thereby realizing the screening of livestock feed. Feeds of different sizes fall through different discharge ports 2, and the discharge amount within a unit time (i.e., a fixed time period, which is set by the staff according to the type of feed, the degree of dryness of the feed, the size of the feed particles, etc.) of multiple discharge ports 2 is detected by the set detection mechanism 6, and the detected feed is poured into the collection box 5 below for storage.

[0038] If the detection mechanism 6 detects that the discharge volume per unit time of the discharge port 2 decreases, the adjusting mechanism 7 adjusts the falling speed of the feed in the feed hopper 4 to avoid more feed being fed in and less being discharged from the rotary vibrating screen body 1, resulting in a large amount of feed being accumulated on the screen 3, affecting the screening efficiency, and the combing mechanism 8 performs preliminary combing on multiple screens 3 respectively. If after the preliminary combing, the detection mechanisms 6 at multiple discharge ports 2 detect that the discharge volume is restored, the adjusting mechanism 7 stops working; if after the preliminary combing, the detection mechanism 6 detects that the discharge volume per unit time of the discharge port 2 has not changed, the combing mechanism 8 performs secondary combing on multiple screens 3 respectively to avoid feed particles clogging the mesh of the screen 3, thereby improving the screening efficiency and reducing the workload of the staff. The staff does not need to stay near the rotary vibrating screen body 1 for a long time, avoiding the dust generated by the vibration affecting the health of the staff.

[0039] The detection mechanism 6 includes a receiving wheel 60 located between the discharge port 2 and the collecting box 5 respectively, and a plurality of receiving grooves 61 are opened on the surface of the receiving wheel 60, and a pressure sensor 62 is installed on the inner wall of the receiving groove 61. A rotating shaft 63 is fixedly connected to the axis of the receiving wheel 60, and support frames 64 are respectively arranged at both ends of the receiving wheel 60. The rotating shaft 63 is rotatably connected to the inner wall of the support frame 64, and a rotating member 65 for driving the rotating shaft 63 to rotate periodically is arranged on the outer side of one end of the rotating shaft 63, and a limit member 66 for limiting the rotation of the rotating shaft 63 is arranged on the other end of the rotating shaft 63.

[0040] Before use, the staff sets a pressure threshold for the pressure sensor 62. The pressure threshold is the weight of livestock feed expected to fall into the containing trough 61 per unit time. Since there are multiple discharge ports 2 and a receiving wheel 60 is provided under each discharge port 2, the pressure sensor 62 under each discharge port 2 controls the adjustment mechanism 7 under the corresponding screen 3. Since the sizes of feed discharged from the discharge port 2 are different, the pressure threshold of the pressure sensor 62 under each discharge port 2 is different.

[0041] When the rotary vibrating screen body 1 is working, the vibration of the screen 3 causes feeds of different sizes to fall through different discharge ports 2, and the feed falling from the discharge port 2 falls into the holding slot 61. The weight of the feed in the holding slot 61 is detected by the pressure sensor 62. When the weight of the feed falling per unit time in the holding slot 61 is less than the threshold value set by the pressure sensor 62, the rotating member 65 will automatically work every unit time. At this time, the rotating member 65 drives the rotating shaft 63 to rotate, so that the livestock feed in the holding slot 61 is poured into the collection box 5 below. If the threshold value of the pressure sensor 62 is not triggered, the pressure sensor 62 sends a signal to the combing machine. Mechanism 8 and adjusting mechanism 7, adjust the falling speed of the feed in the feed hopper 4 through the adjusting mechanism 7 to avoid excessive feeding and less discharge, resulting in a large amount of feed piling up on the screen 3, and improve the screening efficiency. The combing mechanism 8 performs preliminary combing on multiple screens 3 respectively. If after the preliminary combing, the weight of the feed falling into the holding slot 61 per unit time exceeds the pressure threshold, the adjusting mechanism 7 resumes normal feeding and the combing mechanism 8 stops working; if the weight of the feed falling into the holding slot 61 per unit time still does not exceed the pressure threshold, the combing mechanism 8 performs secondary combing on the corresponding screen 3 to cooperate with the combing of the sieve holes blocked on the surface of the screen 3.

[0042] When the weight of feed dropped into the containing groove 61 per unit time exceeds the threshold value set by the pressure sensor 62, but the receiving wheel 60 cannot break through the restriction of the limit member 66, after each set unit time, the rotating member 65 drives the rotating shaft 63 to rotate, and the rotating shaft 63 drives the receiving wheel 60 to rotate, so that the feed received in the containing groove 61 falls into the collecting box 5 below.

[0043] When the weight of the feed dropped per unit time in the containing tank 61 causes the receiving wheel 60 to break through the limit of the limiting member 66 , the receiving wheel 60 rotates under the gravity of the feed and resets the timing of the rotating member 65 .

[0044] The rotating member 65 includes a transmission disk 67 fixedly connected to the end of the rotating shaft 63, a rotating ring 68 fixedly connected to the outer side of the transmission disk 67, a transmission gear 69 is provided on the outer side of the rotating ring 68, the transmission gear 69 is rotatably connected to the inner wall of the support frame 64, a one-way transmission member 610 is provided between the transmission gear 69 and the rotating ring 68, a transmission gear plate 611 is meshed below the transmission gear 69, the transmission gear plate 611 is slidably connected to the inner wall of the support frame 64, an electric telescopic rod 612 is fixedly connected to the outer side of the transmission gear plate 611, the electric telescopic rod 612 is fixedly connected to the inner wall of the support frame 64, a timer 613 is installed on the inner wall of the support frame 64, and the timer 613 is connected to the electric telescopic rod 612.

[0045] After each set unit time, the timer 613 sends a working signal to the electric telescopic rod 612, and the electric telescopic rod 612 drives the transmission tooth plate 611 to move, and the transmission tooth plate 611 drives the transmission gear 69 to rotate. The transmission gear 69 drives the rotating ring 68 to rotate through the one-way transmission member 610, and the rotating ring 68 drives the transmission disk 67 to rotate, and the transmission disk 67 drives the rotating shaft 63 to rotate, and the rotating shaft 63 drives the material receiving wheel 60 to rotate, so that the feed in the containing groove 61 falls into the collecting box 5 below. When the electric telescopic rod 612 is retracted, the electric telescopic rod 612 drives the transmission tooth plate 611 to reset, and the transmission tooth plate 611 drives the transmission gear 69 to rotate in the opposite direction. Due to the action of the one-way transmission member 610, when the transmission gear 69 reverses, the rotating shaft 63 does not reverse.

[0046] The one-way transmission member 610 includes a ratchet 614 fixedly connected to the transmission gear 69 . The ratchet 614 is located on the inner side of the rotating ring 68 . A plurality of rubber blocks 615 are fixedly connected to the inner side of the rotating ring 68 . The plurality of rubber blocks 615 are arranged at equal angles and abut against the outer side of the ratchet 614 .

[0047] When the transmission gear 69 rotates, the ratchet 614 is driven to rotate, and the outer teeth of the ratchet 614 abut against the rubber block 615, thereby driving the rubber block 615 and the ratchet 614 to rotate synchronously. When the transmission gear 69 reverses, the ratchet 614 reverses, and the outer teeth of the ratchet 614 are squeezed against the outer side of the rubber block 615, causing the rubber block 615 to deform. The ratchet 614 and the rubber block 615 slide relative to each other, thereby preventing the rotating shaft 63 from reversing when the electric telescopic rod 612 contracts.

[0048] The limiting member 66 includes a limiting rod 616 fixedly connected to the rotating shaft 63, the limiting rod 616 is rotatably connected to the inner wall of the support frame 64, the inner wall of the limiting rod 616 is rotatably connected to a fixing rod 617, the fixing rod 617 is fixedly connected to the inner wall of the support frame 64 at one end away from the limiting rod 616, a plurality of arc plates 618 are fixedly connected to the inner side of the limiting rod 616, the plurality of arc plates 618 are arranged at equal angles, and an obstruction member 619 is provided on the surface of the fixing rod 617 for limiting the arc plates 618.

[0049] When the feed falls into the holding tank 61 from the discharge port 2, as the feed in the holding tank 61 increases, the falling feed will generate a torque on the receiving wheel 60, trying to rotate the receiving wheel 60. The torque of the feed on the receiving wheel 60 is:

[0050] T = G * R;

[0051] Wherein G is the total weight of the feed, and R is the radius of the receiving wheel 60. Therefore, as the feed in the holding groove 61 increases, the torque that drives the receiving wheel 60 to rotate increases. Since the limit rod 616 is fixedly connected to the rotating shaft 63, as the weight of the feed in the holding groove 61 increases, the pressure of the arc plate 618 on the obstruction member 619 also increases. When the pressure of the arc plate 618 on the obstruction member 619 reaches the change limit of the obstruction member 619 per unit time, the arc plate 618 slides over the surface of the obstruction member 619, and the receiving wheel 60 rotates, and the feed in the holding groove 61 is poured into the collecting box 5 below. Since the size distribution of the feed is uneven, when the content of feed of a certain size is high, a large amount of feed of this size will fall into the holding groove 61 per unit time, so that before the unit time is reached, the feed in the holding groove 61 will be poured into the collecting box 5 below, thereby preventing the feed in the holding groove 61 from overflowing.

[0052] The obstruction member 619 includes two support blocks 620 fixedly connected to the surface of the fixed rod 617, a rotating rod 621 is rotatably connected between the two support blocks 620, a baffle 622 is fixedly connected to the outer side of the rotating rod 621, a control button 623 is installed on the surface of the fixed rod 617, the control button 623 is connected to the timer 613, a compression spring 624 is fixedly connected to the outer side of the baffle 622, one end of the compression spring 624 is located on the inner wall of the fixed rod 617, one end of the rotating rod 621 is fixedly connected to a limiting block 625, and a limiting groove 626 is provided on the inner wall of the support block 620 to slideably connect to the limiting block 625. The limiting groove 626 restricts the limiting block 625 to prevent the elastic force of the compression spring 624 from causing the baffle 622 to be excessively extended.

[0053] When the pressure between the arc plate 618 and the baffle 622 is less than the elastic force of the compression spring 624, the limit rod 616 cannot rotate due to the obstruction of the baffle 622. As the feed in the containing groove 61 increases, the torque that drives the receiving wheel 60 to rotate gradually increases. At this time, the limit rod 616 drives the arc plate 618 to squeeze the baffle 622, so that the baffle 622 drives the rotating rod 621 to rotate, and the rotating rod 621 drives the limit block 625 to rotate along the inner wall of the limit groove 626, and the rotating rod 621 triggers the control button 623 when rotating downward. The control button 623 resets the timing of the timer 613. After the arc plate 618 passes the baffle 622, the compression spring 624 pushes the baffle 622 to reset to cooperate with the limiting of the next arc plate 618.

[0054] The adjusting mechanism 7 includes an adjusting rod 70 rotatably connected to the inner wall of the feed hopper 4, a closing plate 71 is fixedly connected to the outer side of the adjusting rod 70, and a servo motor 72 is fixedly connected to one end of the adjusting rod 70 passing through the feed hopper 4. The servo motor 72 is installed on the surface of the feed hopper 4 and is connected to the pressure sensor 62.

[0055] When the staff pours the feed into the feed hopper 4, the closing plate 71 is in a state of completely closing the tube wall of the feed hopper 4. When the rotary vibrating screen body 1 starts to work, the servo motor 72 drives the adjusting rod 70 to rotate, and the adjusting rod 70 drives the closing plate 71 to rotate to a vertical state to prevent the closing plate 71 from blocking the feed in the feed hopper 4 from entering the rotary vibrating screen body 1.

[0056] When the weight of feed dropped per unit time in the containing groove 61 is less than the threshold value set by the pressure sensor 62, the pressure sensor 62 sends a signal to the servo motor 72, and the servo motor 72 works. The output end of the servo motor 72 drives the adjusting rod 70 to rotate, so that the closing plate 71 blocks the tube wall of the feed hopper 4, limits the flow of feed entering the inside of the rotary vibrating screen body 1, avoids the accumulation of a large amount of feed inside the rotary vibrating screen body 1, and improves the combing efficiency.

[0057] The combing mechanism 8 includes knocking blocks 80 respectively located below the screen 3, and a transmission rod 81 is fixedly connected to the outer side of the knocking block 80, and a driving motor 82 is fixedly connected to the end of the transmission rod 81 away from the knocking block 80, and a motor bin 83 is provided on the outer side of the driving motor 82, and a sealing rod 84 is fixedly connected to the outer side of the motor bin 83, and the sealing rod 84 penetrates the rotary vibrating screen body 1, and the transmission rod 81 is rotatably connected to the inner wall of the sealing rod 84, and a fixed box 85 is provided on the outer side of the motor bin 83, and the fixed box 85 is fixedly connected to the rotary vibrating screen body 1, and an electric telescopic rod 86 is fixedly connected to the inner wall of the fixed box 85, and the electric telescopic rod 86 is fixedly connected to the motor bin 83.

[0058] If the threshold of the pressure sensor 62 is not triggered when the receiving wheel 60 rotates, since a combing mechanism 8 is installed under each screen 3, and each screen 3 corresponds to the discharge port 2, and a pressure sensor 62 is installed under the discharge port 2, the untriggered pressure sensor 62 sends a signal to the combing mechanism 8 under the corresponding screen 3. At this time, the driving motor 82 first works to drive the transmission rod 81 to rotate, and the transmission rod 81 drives the knocking block 80 to knock on the screen 3. After the knocking, if the feed weight detected by the pressure sensor 62 reaches the normal threshold, the driving motor 82 stops working to prevent the knocking block 80 from vibrating the screen 3 for a long time and affecting the installation stability of the screen 3.

[0059] If after the knocking, the feed weight detected by the pressure sensor 62 still does not reach the normal threshold, the driving motor 82 stops working, the electric telescopic rod 86 drives the motor compartment 83 to move, the motor compartment 83 drives the sealing rod 84 to move, and at the same time the motor compartment 83 drives the driving motor 82 and the transmission rod 81 to move, the transmission rod 81 drives the knocking block 80 to move, so that the knocking block 80 moves to the bottom of the center of the screen 3. At this time, the driving motor 82 works, and the knocking block 80 repeatedly knocks on the screen 3 driven by the transmission rod 81, and the screen 3 will also vibrate under the drive of the rotary vibrating screen body 1. The two vibrations are not of the same frequency. By knocking on the center of the screen 3, the screen 3 as a whole produces more obvious vibration, so as to shake out the feed stuck in the mesh of the screen 3 and improve the screening efficiency of the screen 3. When the feed weight detected by the pressure sensor 62 reaches the normal threshold, the driving motor 82 stops working, and the electric telescopic rod 86 contracts to reset the knocking block 80. Example

[0060] In the second embodiment, other structures remain unchanged. The difference from the first embodiment is that the compression spring 624 is located at one end of the inner wall of the fixed rod 617 and is fixedly connected to an adjustment plate 627. The adjustment plate 627 is slidably connected to the inner wall of the fixed rod 617. An oblique end 628 is provided on the surface of the adjustment plate 627. An adjustment piece 629 for adjusting the elastic force of the compression spring 624 is provided on the side of the adjustment plate 627 close to the oblique end 628.

[0061] When the receiving wheel 60 receives the feed, if the content of a certain size of feed in the feed is high, causing the receiving wheel 60 to frequently flip over before the unit time has expired, the staff can increase the elastic force of the compression spring 624 through the adjustment member 629, so that the receiving groove 61 can hold more feed before pouring it into the collecting box 5 below, thereby reducing the rotation frequency of the receiving wheel 60, reducing the wear of the arc plate 618 and the baffle 622, extending the service life, and reducing the rotation frequency, thereby reducing the impact of vibration on the equipment;

[0062] The adjusting member 629 includes a trapezoidal plate 630 slidably connected to the inner wall of the fixing rod 617, the hypotenuse of the trapezoidal plate 630 is close to the oblique end 628 of the adjusting plate 627, the outer side of the trapezoidal plate 630 is rotatably connected to a screw rod 631, one end of the screw rod 631 passes through the inner wall of the fixing rod 617, and the screw rod 631 is threadedly connected to the fixing rod 617.

[0063] When the adjusting member 629 is working, the staff twists the screw 631, and the screw 631 rotates on the inner wall of the fixed rod 617 and rotates relative to the trapezoidal plate 630. At the same time, the screw 631 pushes the trapezoidal plate 630 to slide on the inner wall of the fixed rod 617, so that the beveled edge of the trapezoidal plate 630 squeezes the beveled end 628 of the adjusting plate 627, and the adjusting plate 627 moves downward and squeezes the compression spring 624. Due to the restriction of the limiting groove 626 on the limiting block 625, the baffle 622 cannot be extended outward, which increases the elastic force of the compression spring 624 on the baffle 622. At this time, the receiving groove 61 of the receiving wheel 60 needs to receive more feed to drive the receiving wheel 60 to rotate.

[0064] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0065] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A livestock feed screening device, comprising: A rotary vibrating screen body (1), a material outlet (2), and a screen (3), wherein a plurality of screens (3) are provided and are located inside the rotary vibrating screen body (1); The invention is characterized in that it further comprises a feed hopper (4), wherein the feed hopper (4) is located above the rotary vibrating screen body (1), and the feed hopper (4) is connected to the rotary vibrating screen body (1); A collecting box (5), wherein a plurality of the collecting boxes (5) are provided and are respectively located below the discharge port (2); A detection mechanism (6), the detection mechanism (6) being located between the collection box (5) and the discharge port (2), the detection mechanism (6) detecting the discharge volume of the plurality of discharge ports (2) per unit time respectively; An adjusting mechanism (7), the adjusting mechanism (7) being connected to the feed hopper (4), and the adjusting mechanism (7) adjusting the falling speed of the feed in the feed hopper (4) according to the discharge change of the discharge port (2) detected by the detection mechanism (6); A combing mechanism (8), the combing mechanism (8) being located inside the rotary vibrating screen body (1); when the detection mechanism (6) detects that the amount of material discharged from the discharge port (2) per unit time changes, the combing mechanism (8) respectively performs preliminary combing on the plurality of screens (3); if after the preliminary combing, the detection mechanism (6) detects that the amount of material discharged from the discharge port (2) per unit time does not change, the combing mechanism (8) respectively performs secondary combing on the plurality of screens (3); The detection mechanism (6) comprises a material receiving wheel (60) respectively located between the material discharge port (2) and the collection box (5); a plurality of receiving grooves (61) are provided on the surface of the material receiving wheel (60); a pressure sensor (62) is installed on the inner wall of the receiving groove (61); a rotating shaft (63) is fixedly connected to the axis of the material receiving wheel (60); support frames (64) are respectively provided at both ends of the material receiving wheel (60); the rotating shaft (63) is rotatably connected to the inner wall of the support frame (64); a rotating member (65) for driving the rotating shaft (63) to rotate periodically is provided on the outer side of one end of the rotating shaft (63); and a limit member (66) for limiting the rotation of the rotating shaft (63) is provided at the other end of the rotating shaft (63); When the weight of feed dropped per unit time in the containing trough (61) exceeds a threshold value set by the pressure sensor (62), but the receiving wheel (60) cannot break through the limit of the limiter (66), the rotating member (65) drives the rotating shaft (63) to rotate after each set unit time, and the rotating shaft (63) drives the receiving wheel (60) to rotate, so that the feed received in the containing trough (61) falls into the collecting box (5) below; When the weight of the feed dropped per unit time in the containing tank (61) causes the receiving wheel (60) to break through the limit of the limiting member (66), the receiving wheel (60) rotates under the action of the gravity of the feed and resets the timing of the rotating member (65).

2. The livestock feed screening device according to claim 1, characterized in that: The rotating member (65) comprises a transmission disc (67) fixedly connected to the end of the rotating shaft (63); a rotating ring (68) is fixedly connected to the outer side of the transmission disc (67); a transmission gear (69) is provided on the outer side of the rotating ring (68); the transmission gear (69) is rotatably connected to the inner wall of the support frame (64); a one-way transmission member (610) is provided between the transmission gear (69) and the rotating ring (68); a transmission tooth plate (611) is meshed below the transmission gear (69); the transmission tooth plate (611) is slidably connected to the inner wall of the support frame (64); an electric telescopic rod (612) is fixedly connected to the outer side of the transmission tooth plate (611); the electric telescopic rod (612) is fixedly connected to the inner wall of the support frame (64); and a timer (613) is installed on the inner wall of the support frame (64).

3. The livestock feed screening device according to claim 2, characterized in that: The one-way transmission member (610) comprises a ratchet (614) fixedly connected to the transmission gear (69); the ratchet (614) is located inside the rotating ring (68); a plurality of rubber blocks (615) are fixedly connected to the inside of the rotating ring (68); the plurality of rubber blocks (615) are arranged at equal angular intervals; the rubber blocks (615) abut against the outside of the ratchet (614).

4. The livestock feed screening device according to claim 2, characterized in that: The limiting member (66) comprises a limiting rod (616) fixedly connected to the rotating shaft (63); the limiting rod (616) is rotatably connected to the inner wall of the support frame (64); the inner wall of the limiting rod (616) is rotatably connected to a fixing rod (617); one end of the fixing rod (617) away from the limiting rod (616) is fixedly connected to the inner wall of the support frame (64); a plurality of arc plates (618) are fixedly connected to the inner side of the limiting rod (616); the plurality of arc plates (618) are arranged at equal angles; and a blocking member (619) for limiting the arc plates (618) is provided on the surface of the fixing rod (617).

5. The livestock feed screening device according to claim 4, characterized in that: The obstruction member (619) comprises two support blocks (620) fixedly connected to the surface of the fixed rod (617); a rotating rod (621) is rotatably connected between the two support blocks (620); a baffle (622) is fixedly connected to the outer side of the rotating rod (621); a control button (623) is installed on the surface of the fixed rod (617); the control button (623) is connected to the timer (613); a compression spring (624) is fixedly connected to the outer side of the baffle (622); one end of the compression spring (624) is located on the inner wall of the fixed rod (617); one end of the rotating rod (621) is fixedly connected to a limiting block (625); and a limiting groove (626) slidably connected to the limiting block (625) is provided on the inner wall of the support block (620).

6. The livestock feed screening device according to claim 1, characterized in that: The regulating mechanism (7) comprises an regulating rod (70) rotatably connected to the inner wall of the feed hopper (4), a closing plate (71) being fixedly connected to the outer side of the regulating rod (70), and a servo motor (72) being fixedly connected to one end of the regulating rod (70) passing through the feed hopper (4). The servo motor (72) is mounted on the surface of the feed hopper (4), and the servo motor (72) is connected to the pressure sensor (62).

7. The livestock feed screening device according to claim 1, characterized in that: The combing mechanism (8) comprises knocking blocks (80) respectively located below the screen (3); a transmission rod (81) is fixedly connected to the outside of the knocking block (80); an end of the transmission rod (81) away from the knocking block (80) is fixedly connected to a driving motor (82); a motor compartment (83) is provided on the outside of the driving motor (82); a sealing rod (84) is fixedly connected to the outside of the motor compartment (83); the sealing rod (84) penetrates the rotary vibrating screen body (1); the transmission rod (81) is rotatably connected to the inner wall of the sealing rod (84); a fixing box (85) is provided on the outside of the motor compartment (83); the fixing box (85) is fixedly connected to the rotary vibrating screen body (1); an electric telescopic rod second (86) is fixedly connected to the inner wall of the fixing box (85); the electric telescopic rod second (86) is fixedly connected to the motor compartment (83).

8. The livestock feed screening device according to claim 5, characterized in that: The compression spring (624) is located at one end of the inner wall of the fixing rod (617) and is fixedly connected to an adjustment plate (627). The adjustment plate (627) is slidably connected to the inner wall of the fixing rod (617). An oblique end (628) is provided on the surface of the adjustment plate (627). An adjustment member (629) for adjusting the elastic force of the compression spring (624) is provided on one side of the adjustment plate (627) close to the oblique end (628).

9. The livestock feed screening device according to claim 8, characterized in that: The adjusting member (629) comprises a trapezoidal plate (630) slidably connected to the inner wall of the fixing rod (617), the oblique side of the trapezoidal plate (630) being close to the oblique end (628) of the adjusting plate (627), the outer side of the trapezoidal plate (630) being rotatably connected to a screw rod (631), one end of the screw rod (631) passing through the inner wall of the fixing rod (617), and the screw rod (631) being threadedly connected to the fixing rod (617).

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