Feed raw material primary screening device

Abstract

The utility model relates to a feed raw material preliminary screening device which comprises a base, a belt-shaped screen and a second electric push rod, the upper surface of the base is connected with a material collecting bin through an elastic mechanism, a vibration motor is arranged on the material collecting bin, racks are oppositely arranged on the top of the material collecting bin, two reels are rotationally arranged between the two racks, the reels are connected with motors arranged on the racks, and the motors are connected with the belt-shaped screen. The belt-shaped screen is composed of multiple sections of screen bodies with different screen hole diameters, the length of the screen bodies is larger than the distance between the two reels, the two ends of the belt-shaped screen are wound around the two reels respectively, so that the portion, between the two reels, of the belt-shaped screen is straightened to be inclined, first electric push rods are arranged on the two sides of the machine frame, clamping blocks are arranged at the telescopic ends of the first electric push rods, and the clamping blocks are connected with the belt-shaped screen. The clamping block is aligned with the reel. According to the utility model, on the premise that the mounting piece or / and the connecting piece do not need to be disassembled and assembled, the screens with different specifications can be quickly replaced, so that the feed raw material screening device is suitable for screening feed raw materials with different particle diameters, and the screening work of the feed raw materials is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of material screening devices, and particularly relates to a primary screening device for feed raw materials. Background Art

[0002] The raw materials of feed include corn, wheat, rice, millet, sorghum and brown rice, etc. These raw materials need to be preliminarily screened before being used to produce feed to remove shells, branches and leaves and other broken impurities in the raw materials. In order to improve the screening effect and efficiency, screening devices are usually used in the prior art for screening. Common screening devices include a tilted screen and a vibration mechanism, and the vibration mechanism is used to drive the screen to vibrate. There are two common structures of the screen, one is a steel plate punching screen and the other is a woven screen, and both screens are made of hard materials. Therefore, after the feed raw materials are thrown on the screen, the vibration of the screen can cause fine materials to pass through the screen and fall, and it can also prevent coarse materials from accumulating on the screen to improve the screening efficiency. However, due to the wide variety of feed raw materials and the different particle sizes of different types of feed raw materials, when different types of feed raw materials need to be screened, it is often necessary to replace the screen of the screening device to be suitable for the screening of the corresponding types of feed raw materials, but when replacing the screen, a large number of mounting parts and / or connectors need to be disassembled and assembled, which undoubtedly increases the cumbersomeness of the screening work. Utility Model Content

[0003] The utility model provides a feed raw material primary screening device, which can quickly replace screens of different specifications without disassembling mounting parts and / or connecting parts, so as to be suitable for screening feed raw materials with different particle diameters, thereby facilitating the screening work of feed raw materials.

[0004] The technical solution adopted by this utility model:

[0005] A feed raw material primary screening device comprises a base, a belt-shaped screen and two electric push rods, the upper surface of the base is connected to a collection bin through an elastic mechanism, the collection bin is provided with a vibration motor, a frame is provided on the top of the collection bin opposite to each other, two reels are rotatably provided between the two frames, the reels are connected to a motor provided on the frame, the belt-shaped screen is composed of multiple sections of screens with different sieve apertures, the length of the screen is greater than the distance between the two reels, the two ends of the belt-shaped screen are respectively wound around two reels, so that the belt-shaped screen between the two reels is straightened and inclined, and one electric push rod is provided on both sides of the frame, the telescopic end of the one electric push rod is provided with a clamping block, and the clamping block is aligned with the reel.

[0006] Furthermore, the second electric push rod is arranged on the inner wall of the aggregate bin, the telescopic end of the second electric push rod is connected to a support rod, the upper and lower ends of the support rod are respectively hinged with a hard mesh plate and an electric push rod three, the third electric push rod is hinged to the lower surface of the mesh plate, and the mesh plate is located between two reels.

[0007] Furthermore, the elastic mechanism includes a plurality of fixed sleeves arranged on the upper surface of the base and a plurality of sliding rods arranged on the bottom of the aggregate bin, a sliding block is provided at the lower end of the sliding rod, the sliding block is slidably arranged in the fixed sleeve, and a spring is connected between the sliding block and the bottom of the fixed sleeve.

[0008] Furthermore, a discharge bin is mounted on the upper surface of the base through a bracket, and the discharge bin is located above the belt-shaped screen on the high side.

[0009] Furthermore, a fan is connected to the discharge bin via bracket 2, the fan is connected to a nozzle, and the exhaust end of the nozzle faces the high side of the belt-shaped screen.

[0010] Furthermore, the electric push rod is installed on the frame through a support.

[0011] Furthermore, the second electric push rod is installed on the inner wall of the aggregate bin through a second support.

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

[0013] 1. With the cooperation of the elastic mechanism and the vibration motor, the aggregate bin vibrates on the base, and the aggregate bin drives the belt screen to vibrate, so that the coarse material rolls along the belt screen, and the fine material passes through the belt screen and falls into the aggregate bin, which can realize continuous screening.

[0014] 2. Since the belt screen is composed of multiple sections of screens with different sieve apertures, and the length of the screen is greater than the distance between the two reels, and the two ends of the belt screen are respectively wound on the two reels, when one reel releases the belt screen and the other reel reels the belt screen, it can be quickly replaced with screens of different specifications to be suitable for screening feed raw materials with different particle sizes, which is convenient for the screening of feed raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 for Figure 1 Sectional view at AA;

[0017] Figure 3 for Figure 1 Sectional view at the middle BB;

[0018] Figure 4 It is a schematic diagram of the unfolded structure of the belt-shaped screen;

[0019] In the figure: 1. base; 2. slider; 3. slide bar; 4. support one; 5. electric push rod one; 6. clamping block; 7. reel; 8. belt screen; 9. bracket one; 10. discharge bin; 11. bracket two; 12. nozzle; 13. fan; 14. mesh plate; 15. electric push rod two; 16. frame; 17. support two; 18. collection bin; 19. vibration motor; 20. spring; 21. fixing sleeve; 22. electric push rod three; 23. support rod; 24. motor. DETAILED DESCRIPTION

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

[0021] See also Figures 1 to 4 The utility model provides a feed raw material primary screening device, including a base 1, a belt-shaped screen 8 and an electric push rod 15. The upper surface of the base 1 is connected with a collection bin 18 through an elastic mechanism. The collection bin 18 is provided with a vibration motor 19. After the vibration motor 19 is started, the collection bin 18 is vibrated on the base 1 under the cooperation of the elastic mechanism. The front and rear sides of the top of the collection bin 18 are symmetrically fixed with frames 16. Two reels 7 are rotatably provided between the left and right sides of the two frames 16. The two ends of the reels 7 are respectively transferred to the front and rear frames 16. The rear end of the reel 7 is connected with a motor 24, and the motor 24 is fixed on the rear frame 16. The belt-shaped screen The net 8 is composed of multiple sections of screens with different mesh diameters, the length of which is greater than the distance between the two reels 7, and the belt-shaped screen 8 is bendable, so that the two ends of the belt-shaped screen 8 are respectively wound on the two reels 7, so that the screen with the same mesh diameter between the two reels 7 is straightened and unfolded and inclined, and electric push rods 5 are fixed on the left and right sides of the front frame 16, and clamping blocks 6 are fixed on the telescopic ends of the electric push rods 5, and the clamping blocks 6 are aligned with the reels 7. When the electric push rods 5 are extended to drive the clamping blocks 6 to be pressed against the reels 7, the reels 7 can be locked, and when the electric push rods 5 are shortened to drive the clamping blocks 6 to leave the reels 7, the reels 7 can be unlocked;

[0022] When it is necessary to replace the screen with another screen mesh size, the electric push rod 5 on one side is controlled to drive the clamping block 6 on that side to completely leave the reel 7 on that side to completely unlock the reel 7 on that side, and the electric push rod 5 on the other side is controlled to drive the clamping block 6 to half leave the reel 7 on that side, so that the reel 7 is in a semi-unlocked state, so that the reel 7 has a certain damping force when rotating, and the motor 24 is controlled to drive the reel 7 on the fully locked side to rotate to reel in the belt-shaped screen 8, and the belt-shaped screen 8 pulls the semi-unlocked reel 7 on the other side to rotate to release the reel 7 on it. The retracted belt-shaped screen 8 is in a straightened state when one end of the belt-shaped screen 8 is retracted and the other end is released, until the screen with another mesh diameter is pulled between the two reels 7. Since the length of the screen with the same mesh diameter is greater than the distance between the two reels 7, after the replacement is completed, the two ends of the screen with the same mesh diameter will be respectively retracted on the two reels 7, so that the utility model can quickly replace the screens with different specifications, so as to be suitable for screening feed raw materials with different particle diameters, and facilitate the screening of feed raw materials;

[0023] When screening, the feed raw materials are evenly thrown onto the high side of the belt-shaped screen 8. Under the cooperation of the elastic mechanism and the vibration motor 19, the collection bin 18 is vibrated on the base 1, and the collection bin 18 drives the belt-shaped screen 8 to vibrate, so that the coarse material will roll down along the belt-shaped screen 8, and the fine material will pass through the belt-shaped screen 8 and fall into the collection bin 18, so that continuous screening can be achieved.

[0024] Preferably, the electric push rod 2 15 is fixedly arranged on the inner wall of the aggregate bin 18, the telescopic end of the electric push rod 25 is fixedly connected to the support rod 23, the upper end of the support rod 23 is hinged with a hard mesh plate 14, the lower side of the support rod 23 is hinged with the electric push rod 3 22, the telescopic end of the electric push rod 3 22 is hinged to the lower surface of the mesh plate 14, and the mesh plate 14 is located between the two reels 7.

[0025] When it is necessary to replace the screen with a different mesh size, it is necessary to control the electric push rod 2 15 to shorten, and the electric push rod 2 15 drives the mesh plate 14 to descend, so as to avoid the scraping of the mesh plate 14 during the movement of the belt-shaped screen 8. When the replacement is completed, the electric push rod 2 15 is controlled to extend, and the electric push rod 2 15 drives the mesh plate 14 to rise and stick to the lower surface of the belt-shaped screen 8, so as to support the belt-shaped screen 8, so as to avoid the feed raw materials being pressed on the belt-shaped screen 8 and causing the middle part of the belt-shaped screen 8 between the two reels 7 to sag; and after the belt-shaped screen 8 is replaced, since one reel 7 reels up the belt-shaped screen 8 and the other reel 7 releases the belt-shaped screen 8, the angle of the belt-shaped screen 8 after the straightening section is replaced will change. Therefore, before supporting the straightening section of the belt-shaped screen 8, it is necessary to control the electric push rod 3 22 to extend and retract, and the electric push rod 3 22 drives the mesh plate 14 to swing on the support rod 23, so that the angle of the mesh plate 14 is parallel to the straightening section 8 of the belt-shaped screen 8.

[0026] Preferably, the elastic mechanism includes a plurality of fixed sleeves 21 fixed on the upper surface of the base 1 and a plurality of slide bars 3 fixed on the bottom of the material collection bin 18, a slide bar 2 is fixed on the lower end of the slide bar 3, the slide bar 2 is slidably arranged in the fixed sleeve 21, a spring 20 is connected between the slide bar 2 and the bottom of the fixed sleeve 21, and the spring 20 is located in the fixed sleeve 21. After the vibration motor 19 is started, the vibration motor 19 acts on the material collection bin 18, and the material collection bin 18 drives the slide bar 2 to slide up and down in the fixed sleeve 21 through the slide bar 3 to compress the spring 20, so that the material collection bin 18 can vibrate on the base 1.

[0027] Preferably, a bracket 9 is fixedly provided on the upper surface of the base 1, a discharge bin 10 is fixedly provided on the top of the bracket 9, the discharge bin 10 is located above the belt screen 8 on the high side, and a long strip discharge port is provided at the bottom of the discharge bin 10, the length of the discharge port is parallel to the width of the belt screen 8, and the discharge bin 10 is used to discharge materials to the high side of the belt screen 8.

[0028] Preferably, a bracket 11 is fixedly provided on the discharge bin 10, and a fan 13 is provided on the bracket 11. The fan 13 is connected to a nozzle 12, and the exhaust end of the nozzle 12 faces the high side of the belt-shaped screen 8. When the feed raw materials fall toward the belt-shaped screen 8, the fan 13 is used to supply air to the nozzle 12, and the nozzle 12 blows air to the feed raw materials in the process of falling, which can blow away soft impurities in the feed raw materials, thereby improving the overall screening effect of the feed raw materials.

[0029] Preferably, a support 4 is fixedly provided on the left and right sides of the front frame 16, and an electric push rod 5 is fixedly provided on the support 4.

[0030] Preferably, a support 17 is fixedly provided on the inner wall of the rear side of the collecting bin 18 , and the electric push rod 15 is fixedly provided on the support 17 .

[0031] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A feed raw material primary screening device, characterized in that: It includes a base, a belt-shaped screen and two electric push rods, the upper surface of the base is connected to a collection bin through an elastic mechanism, the collection bin is provided with a vibration motor, and frames are relatively provided on the top of the collection bin, two reels are rotatably provided between the two frames, the reels are connected with a motor provided on the frames, the belt-shaped screen is composed of multiple sections of screens with different mesh sizes, the length of the screen is greater than the distance between the two reels, the two ends of the belt-shaped screen are respectively wound around the two reels, so that the belt-shaped screen between the two reels is straightened and inclined, and electric push rods are provided on both sides of the frame, the telescopic end of the electric push rod is provided with a clamping block, and the clamping block is aligned with the reel.

2. A feed raw material primary screening device according to claim 1, characterized in that: The second electric push rod is arranged on the inner wall of the aggregate bin, the telescopic end of the second electric push rod is connected to a support rod, the upper and lower ends of the support rod are respectively hinged with a hard mesh plate and an electric push rod three, the third electric push rod is hinged to the lower surface of the mesh plate, and the mesh plate is located between two reels.

3. A feed raw material primary screening device according to claim 1, characterized in that: The elastic mechanism includes a plurality of fixed sleeves arranged on the upper surface of the base and a plurality of sliding rods arranged on the bottom of the material collecting bin. A sliding block is provided at the lower end of the sliding rod. The sliding block is slidably arranged in the fixed sleeve. A spring is connected between the sliding block and the bottom of the fixed sleeve.

4. A feed raw material primary screening device according to claim 1, characterized in that: A discharge bin is arranged on the upper surface of the base through a bracket, and the discharge bin is located above the belt-shaped screen on the high side.

5. A feed material primary screening device according to claim 4, characterized in that: The discharge bin is connected to a fan via a second bracket, the fan is connected to a nozzle, and the exhaust end of the nozzle faces the high side of the belt-shaped screen.

6. A feed material primary screening device according to claim 1, characterized in that: The electric push rod is installed on the frame through a support.

7. A feed material primary screening device according to claim 2, characterized in that: The electric push rod 2 is installed on the inner wall of the aggregate bin through the support 2.

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