Rotary vibration sieve with automatic feeding device

Abstract

The invention discloses a spin-vibration screen with an automatic feeding device, and belongs to the technical field of automatic feeding, the spin-vibration screen comprises a base and a spin-vibration screen body fixedly mounted at the top of the base, a vertical frame is fixedly mounted at the top of the base, a height adjusting mechanism is arranged on the vertical frame, a mounting frame is arranged on the height adjusting mechanism, and the mounting frame is fixedly mounted on the base. An automatic feeding device is fixedly mounted on the mounting frame, and the height adjusting mechanism is used for adjusting the height of the mounting frame so as to adjust the height of the automatic feeding device for automatic material taking. Through cooperation of the height adjusting mechanism and the automatic feeding device, automation of the whole process of automatically taking materials from the material storage barrel and conveying the materials to the spin vibration screen body is achieved, manual intervention is not needed, the production efficiency is remarkably improved, and the labor cost is saved.

Description

Technical Field

[0001] The invention relates to the technical field of automatic feeding, in particular to a rotary vibrating screen with an automatic feeding device. Background Art

[0002] Currently, a vibrating screen (vibrating screen / rotary vibrating screen) is a key piece of equipment in grain processing, primarily used for particle grading, impurity removal, and screening. A fully enclosed, high-precision fine powder screening machine, the vibrating screen is suitable for screening and filtering granules, powders, and other materials. The vibrating screen uses an upright motor as the excitation source. Eccentric weights are mounted at the top and bottom of the motor, converting the motor's rotational motion into three-dimensional motion: horizontal, vertical, and tilted. This motion is then transmitted to the screen surface. Adjusting the phase angle between the top and bottom ends can change the trajectory of the material on the screen surface.

[0003] For example, Chinese patent application number 201720942763.7 discloses a vibrating screen with an automatic feeding device, comprising an automatic feeding device for conveying materials and a vibrating screen for high-precision fine powder screening. The automatic feeding device is equipped with baffles on both sides of the conveyor belt to prevent the large amount of ore from being scattered during feeding. The conveyor belt is used to automate feeding, and the discharge port allows the conveyed ore to be promptly fed into the vibrating screen. The entire device has a simple structure and is easy to use, enabling automated feeding in mining operations, improving production efficiency and saving significant manpower. The discharge port at the bottom of the automatic feeding device is connected to the feeding port at the top of the vibrating screen via a connecting tube. The vibrating screen with an automatic feeding device has a dust cover to effectively prevent dust from entering the machine, a fan to cool the vibrating motor, and a dustproof cloth to prevent dust from entering the vibrating motor and affecting its normal operation.

[0004] For example, the Chinese patent application number: 202021225643.3 discloses a rotary vibrating screen with automatic loading, comprising: a rotary vibrating screen, wherein the top of the rotary vibrating screen has a feed port; a spiral conveying device, wherein the spiral conveying device has a discharge pipe and a feed pipe; a crushing device, wherein the crushing device is arranged on the feed pipe and is used to crush the material inside the feed pipe; the discharge pipe corresponds to the feed port, and a feed hopper is provided on the top of the feed pipe, and a discharge dust collecting hood corresponding to the feed port is provided on the discharge pipe; when working, the operator directly puts a large amount of material into the feed hopper, and the material enters the feed pipe from the feed hopper, and is transported to the discharge pipe through the spiral conveying device and falls downward to the feed port. The dust generated after the material enters the rotary vibrating screen is promptly adsorbed and processed by the negative pressure dust removal device after the gathering action of the discharge dust collecting hood, so as to prevent the dust from being scattered and polluting the on-site environment and causing harm to the operator.

[0005] Although some rotary vibrating screens in the prior art are equipped with automatic feeding devices that can transport the material to be screened to the feed port of the rotary vibrating screen, the automatic feeding devices on the existing rotary vibrating screens do not have an automatic material taking function. Workers are often required to manually or use auxiliary machines to pour the material to be transported into the feed hopper on the automatic feeding device. Fully automatic feeding cannot be achieved, and there are still certain deficiencies that need to be improved. Moreover, the process of pouring the material into the feed hopper on the automatic feeding device is not only time-consuming and labor-intensive, but also easily causes dust to spread and pollute the working environment.

[0006] Therefore, it is necessary to provide a rotary vibrating screen with an automatic feeding device to solve the above technical problems. Summary of the Invention

[0007] The purpose of the present invention is to provide a rotary vibrating screen with an automatic feeding device to solve the problem that the automatic feeding device on the existing rotary vibrating screen does not have the automatic material taking function, and often requires staff to manually or use an auxiliary machine to pour the material to be transported into the feed hopper on the automatic feeding device, which cannot achieve fully automatic feeding. In addition, the process of pouring the material into the feed hopper on the automatic feeding device is not only time-consuming and labor-intensive, but also easily causes dust to spread and pollute the working environment.

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: a rotary vibrating screen with an automatic feeding device, comprising a base and a rotary vibrating screen body fixedly mounted on the top of the base, a vertical frame fixedly mounted on the top of the base, a height adjustment mechanism provided on the vertical frame, a mounting frame provided on the height adjustment mechanism, an automatic feeding device fixedly mounted on the mounting frame, the height adjustment mechanism being used to adjust the height of the mounting frame to adjust the height of the automatic feeding device for automatic material removal;

[0009] A positioning groove is provided on the top of the base, and a material storage barrel is movably placed inside the positioning groove.

[0010] As a further description of the above technical solution: the automatic feeding device includes a feeding cylinder with an opening at the bottom end, the feeding cylinder is fixedly installed on the mounting frame, and the opening at the bottom end of the feeding cylinder is a feeding port, a feeding mechanism is provided inside the feeding cylinder, and a feeding pipe is fixedly connected to a position near the top end on one side of the feeding cylinder.

[0011] As a further description of the above technical solution: the feeding pipe is arranged in an inclined shape, and one end of the feeding pipe close to the feeding cylinder is higher than the other end.

[0012] As a further description of the above technical solution: the end of the feeding pipe away from the feeding barrel is connected to a telescopic tube through a flange, the other end of the telescopic tube is fixedly sleeved with a disc and a fixing frame, a number of multi-stage telescopic rods are fixedly connected between the disc and the flange, the fixing frame is fixedly connected to the vertical frame, and is used to limit and fix the bottom end of the telescopic tube, and the bottom end of the telescopic tube is movably inserted into the feeding port at the top of the rotary vibrating screen body.

[0013] As a further description of the above technical solution: the feeding mechanism includes a driving motor 1 fixedly installed on the top of the feeding cylinder, the output end of the driving motor 1 is fixedly connected to a rotating shaft, the other end of the rotating shaft rotates through the feeding cylinder and extends to the interior of the feeding cylinder, and the end of the rotating shaft extending to the interior of the feeding cylinder is fixedly sleeved with a spiral conveying blade.

[0014] As a further description of the above technical solution: a support frame is fixedly connected to the inner wall of the feeding cylinder near the bottom end, and the rotating shaft is rotatably installed through the support frame.

[0015] As a further description of the above technical solution: the height adjustment mechanism includes a device fixedly installed on a second driving motor and two guide rods, the output end of the second driving motor is fixedly connected to a threaded rod, the outer surface of the threaded rod is threadedly connected to a threaded block, the outer surface of the threaded block is fixedly sleeved with a guide block, the guide block is movably sleeved on the outer surfaces of the two guide rods, the mounting frame is fixedly connected to the guide block by bolts, and the threaded rod is arranged between the two guide rods.

[0016] As a further description of the above technical solution: a control box is installed on the front of the stand, a control panel is installed on the front of the control box, and a PLC controller is provided inside the control box, a pressure sensor 1 is installed at a position near the bottom end of the outer side of the feed cylinder, a fixed block is fixedly connected to one side of the feed cylinder, a vertical rod is movably passed through the fixed block, the bottom and top of the vertical rod are respectively fixedly connected to a mounting seat and a limit block, the bottom of the mounting seat is fixedly connected to pressure sensor 2, a flexible spring is fixedly connected between the mounting seat and the fixed block, and pressure sensor 2 is located between pressure sensor 1 and the bottom end of the rotating shaft.

[0017] As a further description of the above technical solution: an anti-rotation mechanism is provided on the stand, and the anti-rotation mechanism includes an electric telescopic rod and an anti-rotation gear. The telescopic end of the electric telescopic rod is fixedly connected with an anti-rotation tooth. The electric telescopic rod is fixedly installed on the front side of the stand, and the anti-rotation tooth is movably inserted into the corresponding tooth groove on the anti-rotation gear. The anti-rotation gear is coaxially fixedly connected to the bottom end of the threaded rod.

[0018] As a further description of the above technical solution: a rat hole prevention mechanism is provided at the bottom end of the rotating shaft, and the rat hole prevention mechanism includes a connecting frame fixedly connected to the bottom end of the rotating shaft, and the other end of the connecting frame is fixedly connected to an arc-shaped material stripping plate.

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

[0020] 1. Fully automatic feeding function: Through the cooperation of the height adjustment mechanism and the automatic feeding device, the whole process of automatically taking materials from the storage barrel and conveying them to the rotary vibrating screen body is realized without manual intervention, which significantly improves production efficiency and saves labor costs.

[0021] 2. Accurately control the feeding depth: By utilizing the linkage of pressure sensor 1, pressure sensor 2, flexible spring, vertical rod and PLC controller, the depth of the feeding barrel inserted into the grain storage barrel can be accurately controlled to avoid excessive load on the equipment due to excessive insertion, thus extending the service life of the equipment.

[0022] 3. Anti-rotation mechanism ensures stability: The anti-rotation mechanism locks the threaded rod to prevent equipment vibration or unexpected situations from causing the height adjustment mechanism to rotate, thereby ensuring the stability of the automatic feeding device during operation.

[0023] 4. Anti-rat hole mechanism optimizes the feeding effect: The design of the arc-shaped feeding plate effectively avoids the phenomenon of "rat holes" or "inverted cone-shaped holes" in the grain storage barrel, ensuring that the grain in the storage barrel can be evenly transported at the same height.

[0024] 5. Reduce dust pollution: Through the coordinated use of the automatic feeding device and the height adjustment mechanism, the material can be automatically taken and transported to the inside of the rotary vibrating screen body for grain screening and filtration. There is no need to manually or mechanically pour the grain into the feed hopper on the automatic feeding device. This not only simplifies the operation steps, saves time and effort, but also effectively prevents the spread of dust and avoids dust pollution in the working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of a rotary vibrating screen with an automatic feeding device proposed by the present invention;

[0026] Figure 2 This is a three-dimensional schematic diagram of the overall structure of a rotary vibrating screen with an automatic feeding device proposed by the present invention from another angle;

[0027] Figure 3 This is a three-dimensional schematic diagram of the structure including the base and positioning groove of a rotary vibrating screen with an automatic feeding device proposed by the present invention;

[0028] Figure 4This is a three-dimensional schematic diagram of the structure of the stand and height adjustment mechanism of a rotary vibrating screen with an automatic feeding device proposed by the present invention;

[0029] Figure 5 This is a three-dimensional schematic diagram of the height adjustment mechanism and mounting frame of a rotary vibrating screen with an automatic feeding device proposed by the present invention;

[0030] Figure 6 This is a three-dimensional schematic diagram of an automatic feeding device of a rotary vibrating screen with an automatic feeding device proposed by the present invention;

[0031] Figure 7 This is a three-dimensional schematic diagram of the structure of the mounting frame and guide blocks of a rotary vibrating screen with an automatic feeding device proposed by the present invention;

[0032] Figure 8 This is a three-dimensional schematic diagram of the structure of the feeding pipe and telescopic pipe of a rotary vibrating screen with an automatic feeding device proposed by the present invention;

[0033] Figure 9 This is a three-dimensional schematic diagram of the structure of the fixed block and feeding cylinder of a rotary vibrating screen with an automatic feeding device proposed by the present invention;

[0034] Figure 10 This is a schematic diagram of the structure of the stand and anti-rotation mechanism of a rotary vibrating screen with an automatic feeding device proposed by the present invention;

[0035] Figure 11 This is an exploded view of the anti-rotation mechanism of a vibrating screen with an automatic feeding device proposed by the present invention;

[0036] Figure 12 This is a three-dimensional schematic diagram of the structure of the feed cylinder and anti-rat hole mechanism of a rotary vibrating screen with an automatic feeding device proposed by the present invention;

[0037] Figure 13 This is a three-dimensional schematic diagram of the structure including the rotating shaft and connecting frame of a rotary vibrating screen with an automatic feeding device proposed by the present invention.

[0038] In the figure: 1. Base; 2. Vibrating screen body; 3. Stand; 4. Height adjustment mechanism; 41. Driving motor 2; 42. Guide rod; 43. Threaded rod; 44. Threaded block; 45. Guide block; 5. Mounting frame; 6. Automatic feeding device; 61. Feeding cylinder; 62. Feeding port; 63. Feeding mechanism; 631. Driving motor 1; 632. Rotating shaft; 633. Spiral conveying blade; 64. Feeding pipe; 65. Flange; 66. Telescopic pipe; 67. Disc; 68. Fixing frame; 69. Level telescopic rod; 610, support frame; 7, positioning slot; 8, storage barrel; 9, control box; 10, control panel; 11, PLC controller; 12, pressure sensor 1; 13, anti-rotation mechanism; 131, electric telescopic rod; 132, anti-rotation gear; 133, anti-rotation latch; 14, anti-rat hole mechanism; 141, connecting frame; 142, arc-shaped material stripping plate; 15, fixing block; 16, vertical rod; 17, mounting seat; 18, limit block; 19, pressure sensor 2; 20, flexible spring. DETAILED DESCRIPTION

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0040] Example 1:

[0041] As attached Figure 1 To the attached Figure 9 As shown, the present invention provides a rotary vibrating screen with an automatic feeding device, comprising a base 1 and a rotary vibrating screen body 2 fixedly mounted on the top of the base 1. The rotary vibrating screen body 2 adopts existing mature technology. Its specific structure and working principle can be referred to the Chinese invention patent with authorization announcement number: CN114101022B, entitled: A plane rotary vibrating screen for grain processing. A vertical frame 3 is fixedly mounted on the top of the base 1, and a height adjustment mechanism 4 is provided on the vertical frame 3. A mounting frame 5 is provided on the height adjustment mechanism 4. An automatic feeding device 6 is fixedly mounted on the mounting frame 5. The height adjustment mechanism 4 is used to adjust the height of the mounting frame 5 to adjust the height of the automatic feeding device 6 for automatic material removal.

[0042] A positioning groove 7 is provided on the top of the base 1, and a storage barrel 8 is movably placed inside the positioning groove 7. The maximum distance that the height adjustment mechanism 4 drives the automatic feeding device 6 to descend is slightly larger than the distance between the bottom end of the automatic feeding device 6 (that is, the bottom end of the rotating shaft 632) and the bottom of the inner wall of the storage barrel 8, so as to ensure that when the height adjustment mechanism 4 drives the automatic feeding device 6 to descend to the lowest height, there is still a small gap between the bottom end of the rotating shaft 632 and the bottom of the inner wall of the storage barrel 8, so as to avoid damage caused by collision between the automatic feeding device 6 and the inner wall of the storage barrel 8.

[0043] The automatic feeding device 6 includes a feeding barrel 61 with an opening at the bottom end. The feeding barrel 61 is fixedly mounted on the mounting frame 5, and the opening at the bottom end of the feeding barrel 61 is a feeding port 62. A feeding mechanism 63 is provided inside the feeding barrel 61, and a feeding pipe 64 is fixedly connected to one side of the feeding barrel 61 near the top. The feeding pipe 64 is arranged in an inclined shape, and one end of the feeding pipe 64 close to the feeding barrel 61 is higher than the other end, so that the grain flows to the telescopic tube 66 by gravity. The grain enters the feeding pipe 64 under the push of the spiral conveying blade 633, and naturally slides into the telescopic tube 66 due to the inclined design, and then is fed to the vibrating screen body 2.

[0044] One end of the feeding tube 64 away from the feeding cylinder 61 is connected to a telescopic tube 66 through a flange 65, and the other end of the telescopic tube 66 is fixedly sleeved with a disc 67 and a fixing frame 68. A number of multi-stage telescopic rods 69 are fixedly connected between the disc 67 and the flange 65, and the fixing frame 68 is fixedly connected to the vertical frame 3, which is used to limit and fix the bottom end of the telescopic tube 66. The bottom end of the telescopic tube 66 is movably inserted into the feeding port at the top of the rotary vibrating screen body 2. By setting up multiple multi-stage telescopic tubes 66, a barrier can be formed on the outside of the telescopic tube 66, so that the telescopic tube 66 can be located between multiple telescopic rods when telescoping, which is conducive to the telescopic tube 66 to telescope in the vertical direction as much as possible, and avoid bending to one side and affecting the telescopic tube 66 to transport grain.

[0045] The feeding mechanism 63 includes a driving motor 631 fixedly mounted on the top of the feeding cylinder 61. The output end of the driving motor 631 is fixedly connected to a rotating shaft 632. The other end of the rotating shaft 632 rotates through the feeding cylinder 61 and extends into the interior of the feeding cylinder 61. One end of the rotating shaft 632 extending into the interior of the feeding cylinder 61 is fixedly sleeved with a spiral conveying blade 633.

[0046] By driving the output end of the motor 631 to rotate clockwise, the rotating shaft 632 is driven to rotate, and the spiral conveying blade 633 is driven to rotate synchronously, and then the grain to be screened and filtered in the storage barrel 8 is transported upward through the spiral conveying blade 633 and the inside of the feed barrel 61. When the grain in the feed barrel 61 moves to the position of the feeding pipe 64, the grain will be transported to the telescopic tube 66 through the feeding pipe 64, and then transported by the telescopic tube 66 from the feeding port on the top of the rotary vibrating screen body 2 to the inside of the rotary vibrating screen body 2, and then the grain is screened and filtered by the rotary vibrating screen body 2.

[0047] A support frame 610 is fixedly connected to the inner wall of the feeding barrel 61 near the bottom end, and the rotating shaft 632 is rotatably installed on the support frame 610. The setting of the support frame 610 can support the rotating shaft 632 to avoid lack of support at the end away from the driving motor 631, thereby improving the stability of the rotating shaft 632 during rotation and ensuring the smooth operation of the spiral conveying blade 633.

[0048] The height adjustment mechanism 4 includes a second drive motor 41 and two guide rods 42 fixedly mounted thereon. The output end of the second drive motor 41 is fixedly connected to a threaded rod 43. The outer surface of the threaded rod 43 is threadedly connected to a threaded block 44. The outer surface of the threaded block 44 is fixedly sleeved with a guide block 45. The guide block 45 is movably sleeved on the outer surfaces of the two guide rods 42. The mounting frame 5 is fixedly connected to the guide block 45 by bolts, and the threaded rod 43 is arranged between the two guide rods 42.

[0049] A control box 9 is installed on the front of the stand 3, and a control panel 10 is installed on the front of the control box 9, and a PLC controller 11 is arranged inside the control box 9 (not shown in the figure). A pressure sensor 12 is installed at a position near the bottom end of the outer side of the feed barrel 61, and a fixed block 15 is fixedly connected to one side of the feed barrel 61. A vertical rod 16 is movably passed through the fixed block 15, and the bottom and top ends of the vertical rod 16 are respectively fixedly connected to a mounting seat 17 and a limit block 18, and a pressure sensor 2 19 is fixedly connected to the bottom of the mounting seat 17, and a flexible spring 20 is fixedly connected between the mounting seat 17 and the fixed block 15. The pressure sensor 2 19 is located between the pressure sensor 12 and the bottom end of the rotating shaft 632. In actual application, an expansion panel to increase the contact surface with the grain can be added to the bottom ends of the pressure sensor 12 and the pressure sensor 2 19, thereby increasing the damping of the pressure sensor embedded in the grain, thereby avoiding the pressure sensor from being embedded in the grain after contacting the grain.

[0050] Pressure sensor 1 12 , pressure sensor 2 19 and drive motor 2 41 are all electrically connected to the PLC controller 11 , and the vibrating screen body 2 , drive motor 1 631 and drive motor 2 41 are electrically connected to the control panel 10 .

[0051] Working principle: When it is necessary to use the rotary vibrating screen with automatic feeding device to screen and filter impurities in grain, the staff first places the storage barrel 8 containing the grain to be screened and filtered into the positioning groove 7 on the top of the base 1, and the positioning groove 7 is used to limit and fix the storage barrel 8 in the horizontal direction;

[0052] Then, the vibrating screen body 2 is turned on through the control panel 10 to make it run. At the same time, the drive motor 1 631 and the drive motor 2 41 are turned on through the control panel 10. The output end of the drive motor 2 41 rotates clockwise to drive the threaded rod 43 to rotate, and under the limiting action of the guide rod 42 and the guide block 45 on the threaded block 44, it moves slowly downward along the axial direction of the threaded rod 43 until the bottom end of the feed cylinder 61 is inserted into the grain in the storage barrel 8, and the downward movement of the feed cylinder 61 drives the pressure sensor 12 and the pressure sensor 2 19 to move downward synchronously. The bottom end of the feed cylinder 61 contacts the grain first, and then the pressure sensor 2 19 contacts the grain. The feed cylinder 61 continues to move downward, and the pressure sensor 2 19 is affected by the grain. The blockage prevents it from moving downward, thereby causing the pressure sensor 2 19 to move upward relative to the fixed block 15, and squeezing the flexible spring 20 to compress it and store energy. When the bottom end of the feeding cylinder 61 is inserted into a certain depth in the grain, the bottom of the pressure sensor 12 abuts against the top of the grain, and the pressure sensor 12 is pressurized and transmits data to the PLC controller 11. The drive motor 2 41 is turned off by the PLC controller 11 to prevent the feeding cylinder 61 from being inserted too deeply into the grain in the storage barrel 8. The deeper the insertion, the greater the resistance to the downward movement of the feeding cylinder 61. Therefore, by accurately controlling the depth of the feeding cylinder 61 inserted into the grain, it is avoided that the insertion too deep increases the load on the height adjustment mechanism 4 and causes damage.

[0053] After the feeding cylinder 61 is inserted into the grain in the storage barrel 8, the output end of the driving motor 1 631 rotates clockwise, driving the rotating shaft 632 to rotate, and driving the spiral conveying blade 633 to rotate synchronously, and then the grain to be screened and filtered in the storage barrel 8 is transported upward through the spiral conveying blade 633 and the interior of the feeding cylinder 61. When the grain in the feeding cylinder 61 moves to the position of the feeding pipe 64, the grain will be transported to the telescopic tube 66 through the feeding pipe 64, and then transported to the interior of the rotary vibrating screen body 2 from the feeding port on the top of the rotary vibrating screen body 2 by the telescopic tube 66, and then screened and filtered by the rotary vibrating screen body 2;

[0054] When the upper surface of the grain in the storage barrel 8 is still continuously lowered along with the feeding and conveying of the automatic feeding device 6, when the upper surface of the grain in the storage barrel 8 is separated from the pressure sensor 2 19, the pressure sensor 2 19 transmits data to the PLC controller 11, which turns on the height adjustment mechanism 4 through the PLC controller 11, and drives the feeding cylinder 61 downward again through the height adjustment mechanism 4 until the pressure is The force sensor 12 is subjected to the squeezing force from the upper surface of the grain, and then the PLC controller 11 closes the height adjustment mechanism 4, so that when the bottom end of the feeding cylinder 61 is about to leave the upper surface of the grain in the storage barrel 8, that is, the depth of the feeding cylinder 61 inserted into the grain is shallow, the automatic control height adjustment mechanism 4 is operated, driving the feeding cylinder 61 and the feeding mechanism 63 to move down a distance between the pressure sensor 12 and the pressure sensor 2 19, so as to realize the automatic intermittent and equidistant downward movement of the feeding cylinder 61 and the feeding mechanism 63, which can ensure that the feeding cylinder 61 and the feeding mechanism 63 cooperate to carry out continuous and automatic material collection, avoid the situation where the feeding cylinder 61 completes its exit from the upper surface of the grain in the storage barrel 8 and the material cannot be collected normally, and can also avoid the feeding cylinder 61 from being inserted too deep into the grain in the storage barrel 8 and increasing the load of the height adjustment mechanism 4, ensuring that the height adjustment mechanism 4 can operate within the load range, avoid damage caused by high-load operation, and help to improve the service life of the height adjustment mechanism 4.

[0055] Example 2:

[0056] As attached Figure 10 and attached Figure 11 As shown, this embodiment is basically the same as the previous embodiment, with the difference that an anti-rotation mechanism 13 is provided on the stand 3, the anti-rotation mechanism 13 includes an electric telescopic rod 131 and an anti-rotation gear 132, the telescopic end of the electric telescopic rod 131 is fixedly connected with an anti-rotation tooth 133, the electric telescopic rod 131 is fixedly mounted on the front side of the stand 3, the anti-rotation tooth 133 is movably inserted into the corresponding tooth groove on the anti-rotation gear 132, and the anti-rotation gear 132 is coaxially fixedly connected to the bottom end of the threaded rod 43.

[0057] The electric telescopic rod 131 is electrically connected to the PLC controller 11. When the driving motor 2 41 needs to be started, the PLC controller 11 first turns on the electric telescopic rod 131 to retract it, driving the anti-rotation tooth 133 to exit the tooth groove on the anti-rotation gear 132, releasing the limit fixation of the anti-rotation gear 132, and then the PLC controller 11 starts the driving motor 2 41 again to avoid the height adjustment mechanism 4 from running and causing operation interference when the anti-rotation mechanism 13 has not released the lock on the threaded rod 43. When the height adjustment mechanism 4 needs to stop running, the PLC controller 11 first turns off the driving motor 2 41, and then starts the electric telescopic rod 131 to extend it, driving the anti-rotation tooth 133 to re-insert into the corresponding tooth groove on the anti-rotation gear 132, limiting and fixing the anti-rotation gear 132, preventing the threaded rod 43 from rotating due to vibration of the equipment operation when the height adjustment mechanism 4 is not running, thereby ensuring the stability of the automatic feeding device 6.

[0058] Example 3:

[0059] As attached Figure 12 and attached Figure 13 As shown, this embodiment is basically the same as the previous embodiment, except that a rat hole prevention mechanism 14 is provided at the bottom end of the rotating shaft 632, and the rat hole prevention mechanism 14 includes a connecting frame 141 fixedly connected to the bottom end of the rotating shaft 632, and the other end of the connecting frame 141 is fixedly connected to an arc-shaped material removal plate 142.

[0060] When the automatic feeding device 6 is running to feed the grain in the storage barrel 8 into the interior of the rotary vibrating screen body 2, the rotating shaft 632 in the automatic feeding device 6 rotates to drive the connecting frame 141 to rotate synchronously, thereby driving the arc-shaped material shifting plate 142 to shift the grain near the side wall of the storage barrel 8, and the arc-shaped material shifting plate 142 shifts and guides the grain to the center of the storage barrel 8, avoiding the phenomenon of "rat holes and inverted cone holes" in the grain in the storage barrel 8 during the transportation process, which is beneficial for the automatic feeding device 6 to uniformly take out and transport the grain in the storage barrel 8 at the same height, avoiding the phenomenon of "rat holes and inverted cone holes" which is not conducive to transporting the grain near the side wall of the storage barrel 8 into the rotary screen body.

[0061] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A rotary vibrating screen with an automatic feeding device, comprising a base (1) and a rotary vibrating screen body (2) fixedly mounted on the top of the base (1), characterized in that: A stand (3) is fixedly mounted on the top of the base (1), a height adjustment mechanism (4) is provided on the stand (3), a mounting frame (5) is provided on the height adjustment mechanism (4), an automatic feeding device (6) is fixedly mounted on the mounting frame (5), and the height adjustment mechanism (4) is used to adjust the height of the mounting frame (5) so as to adjust the height of the automatic feeding device (6) for automatic material removal; A positioning groove (7) is provided on the top of the base (1), and a material storage barrel (8) is movably placed inside the positioning groove (7).

2. A rotary vibrating screen with an automatic feeding device according to claim 1, characterized in that: The automatic feeding device (6) includes a feeding cylinder (61) with an opening at the bottom end, the feeding cylinder (61) is fixedly mounted on the mounting frame (5), and the opening at the bottom end of the feeding cylinder (61) is a feeding port (62), a feeding mechanism (63) is provided inside the feeding cylinder (61), and a feeding pipe (64) is fixedly connected to a position near the top end of one side of the feeding cylinder (61).

3. The rotary vibrating screen with an automatic feeding device according to claim 2, characterized in that: The feeding pipe (64) is arranged in an inclined shape, and one end of the feeding pipe (64) close to the feeding cylinder (61) is higher than the other end.

4. The rotary vibrating screen with an automatic feeding device according to claim 2, characterized in that: One end of the feeding tube (64) away from the feeding barrel (61) is connected to a telescopic tube (66) through a flange (65); the other end of the telescopic tube (66) is fixedly sleeved with a disc (67) and a fixing frame (68); a plurality of multi-stage telescopic rods (69) are fixedly connected between the disc (67) and the flange (65); the fixing frame (68) is fixedly connected to the stand (3) and is used to limit and fix the bottom end of the telescopic tube (66).

5. The rotary vibrating screen with an automatic feeding device according to claim 2, characterized in that: The feeding mechanism (63) includes a driving motor (631) fixedly mounted on the top of the feeding barrel (61), the output end of the driving motor (631) is fixedly connected to a rotating shaft (632), the other end of the rotating shaft (632) rotates through the feeding barrel (61) and extends to the inside of the feeding barrel (61), and one end of the rotating shaft (632) extending to the inside of the feeding barrel (61) is fixedly sleeved with a spiral conveying blade (633).

6. The rotary vibrating screen with an automatic feeding device according to claim 5, characterized in that: A support frame (610) is fixedly connected to the inner wall of the feeding cylinder (61) at a position close to the bottom end, and the rotating shaft (632) is rotatably installed through the support frame (610).

7. The rotary vibrating screen with an automatic feeding device according to claim 1, characterized in that: The height adjustment mechanism (4) includes a device fixedly mounted on a second drive motor (41) and two guide rods (42); the output end of the second drive motor (41) is fixedly connected to a threaded rod (43); the outer surface of the threaded rod (43) is threadedly connected to a threaded block (44); the outer surface of the threaded block (44) is fixedly sleeved with a guide block (45); the guide block (45) is movably sleeved on the outer surfaces of the two guide rods (42); the mounting frame (5) is fixedly connected to the guide block (45) by bolts; and the threaded rod (43) is arranged between the two guide rods (42).

8. The rotary vibrating screen with an automatic feeding device according to claim 5, characterized in that: A control box (9) is installed on the front of the stand (3), a control panel (10) is installed on the front of the control box (9), and a PLC controller (11) is provided inside the control box (9), a pressure sensor 1 (12) is installed at a position near the bottom end of the outer side of the feeding cylinder (61), a fixed block (15) is fixedly connected to one side of the feeding cylinder (61), a vertical rod (16) is movably passed through the fixed block (15), the bottom and top ends of the vertical rod (16) are respectively fixedly connected to a mounting seat (17) and a limit block (18), a pressure sensor 2 (19) is fixedly connected to the bottom of the mounting seat (17), a flexible spring (20) is fixedly connected between the mounting seat (17) and the fixed block (15), and the pressure sensor 2 (19) is located between the pressure sensor 1 (12) and the bottom end of the rotating shaft (632).

9. The rotary vibrating screen with an automatic feeding device according to claim 1, characterized in that: The stand (3) is provided with an anti-rotation mechanism (13), the anti-rotation mechanism (13) comprising an electric telescopic rod (131) and an anti-rotation gear (132), the telescopic end of the electric telescopic rod (131) being fixedly connected to an anti-rotation latch (133), the electric telescopic rod (131) being fixedly mounted on the front face of the stand (3), and the anti-rotation latch (133) being movably inserted into a corresponding tooth groove on the anti-rotation gear (132).

10. The rotary vibrating screen with an automatic feeding device according to claim 5, characterized in that: A rat hole prevention mechanism (14) is provided at the bottom end of the rotating shaft (632). The rat hole prevention mechanism (14) comprises a connecting frame (141) fixedly connected to the bottom end of the rotating shaft (632), and the other end of the connecting frame (141) is fixedly connected to an arc-shaped material-diverting plate (142).

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