A feed pellet grading and sorting device

Abstract

The utility model relates to feed processing technical field discloses a kind of feed granule grading screening devices, including screening chamber, the top of screening chamber is fixedly connected with feed inlet, the outside one side of screening chamber is fixedly connected with multiple discharge ports, the inside of screening chamber is provided with multiple locking mechanisms, the locking mechanism includes hand screwing rotating wheel, the outside fixed connection of hand screwing rotating wheel has threaded rod, the outside thread connection of threaded rod has limit cylinder, the outside sliding connection of limit cylinder has two fixed blocks, the similar side sliding connection of two fixed blocks has connecting column two, the outside of connecting column two is provided with limiting component. In the utility model, operator holds hand, and the sliding plate of screen is aligned with the chute of screening chamber and is pushed in, by rotating hand screwing rotating wheel, threaded rod is rotated, clamping fixed connecting column two is locked, screen is replaced, and screening precision and operation convenience are improved.

Description

Technical Field

[0001] This utility model relates to the field of feed processing technology, and in particular to a feed pellet grading and screening device. Background Technology

[0002] When screening feed, the feed pellet grading and screening device classifies and screens the produced feed pellets according to their particle size, separating pellets of different specifications to meet the needs of different livestock for feed pellet size. At the same time, it removes impurities or unqualified pellets from the pellets, ensuring the quality of the feed product and the subsequent feeding effect.

[0003] When some existing feed pellet grading and screening devices are working, the feed pellets enter the screening chamber through the feed inlet. The motor drives the screen to vibrate or the chamber to rotate, causing the pellets to move on the screen. Particles with a diameter smaller than the screen aperture pass through the screen and enter the corresponding collection area in the lower layer; particles with a diameter larger than the screen aperture remain on the upper screen and are finally discharged from the discharge outlets of different levels, thus achieving the grading of pellets of different sizes. Some devices are also equipped with fans to help remove light impurities such as dust from the pellets. In existing technologies, some feed pellet grading and screening devices use an integrated screen design. When feed pellets clog the screen apertures or the screen is damaged and needs to be replaced after long-term use, operators need to use special tools to disassemble it, which consumes a lot of time and manpower. The complexity of the disassembly and assembly process leads to a decrease in the accuracy of subsequent assembly. Therefore, a feed pellet grading and screening device is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a feed pellet grading and screening device, which aims to improve the problem that some grading and screening devices in the prior art are inconvenient to replace after clogging.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A feed pellet grading and screening device includes a screening chamber, an inlet fixedly connected to the top of the screening chamber, multiple outlets fixedly connected to the outer side of the screening chamber, multiple locking mechanisms provided inside the screening chamber, a vibration mechanism provided at the bottom of the screening chamber, multiple sliding grooves opened inside the screening chamber, a screen slidably connected inside the sliding grooves, a handle fixedly connected to the outside of the screen, and the locking mechanism including a hand-tightening wheel rotatably connected to the outside of the screening chamber. A threaded rod is fixedly connected to the outside of the hand-tightening wheel, and a limit cylinder is threadedly connected to the outside of the threaded rod. Two fixing blocks are slidably connected to the outside of the limit cylinder, and a connecting post two is slidably connected to the adjacent side of the two fixing blocks. A limit component is provided on the outside of the connecting post two. As a further description of the above technical solution: The oscillation mechanism includes a connecting column 1, the top of which is fixedly connected to the four bottom corners of the screening chamber, and a drive shaft is fixedly connected to the bottom of the connecting column 1. As a further description of the above technical solution: The limiting component includes a fixing plate, which is fixedly connected to the outside of the connecting post two and the outside of the screen. As a further description of the above technical solution: Sliding plates are fixedly connected to both outer sides of the screen, and the outer sides of the sliding plates are slidably connected to the inside of the screening chamber. As a further description of the above technical solution: The two fixed blocks are internally rotatably connected to a limiting shaft, and a fixing strip is fixedly connected to the outer middle of the limiting shaft. The fixing strip is fixedly connected to the outside of the screening chamber. As a further description of the above technical solution: One of the drive shafts is fixedly connected to a drive disc, and the drive disc is rotatably connected to a support block. As a further description of the above technical solution: A motor is fixedly connected inside the support block, and the drive end of the motor is fixedly connected to the bottom center of the transmission disc. As a further description of the above technical solution: Additionally, a limiting plate is fixedly connected to the top of the support block, and a sliding groove is provided on the outside of the limiting plate. The inside of the sliding groove is slidably connected to the outside of the drive shaft.

[0006] This utility model has the following beneficial effects: 1. In this utility model, the operator shakes their hand, aligns the sliding plate of the screen with the groove of the screening chamber, and pushes it in until the fixing plate fits against the chamber wall, thus moving the screen into position and quickly establishing the grading system, preparing for subsequent locking. Turning the handwheel drives the threaded rod to rotate, and the threaded connection pushes the limiting cylinder, which in turn drives the fixing block to rotate around the limiting axis, clamping the second fixed connecting column and achieving a stable locking of the screen. Compared with the prior art, this avoids screen displacement and mixing of grades, facilitates screen replacement and maintenance, and improves screening accuracy and ease of operation.

[0007] 2. In this utility model, the transmission disc is driven to rotate by the motor drive end, and the transmission disc in turn drives the connected transmission shaft to make eccentric motion. The top of the transmission shaft is connected to the connecting column one at the bottom of the screening chamber. As the transmission shaft moves, the connecting column one is pulled, and at the same time, the other connecting columns one at the bottom of the screening chamber and the corresponding transmission shaft are driven to slide along the sliding groove of the limiting plate, so as to realize the overall vibration of the screening chamber, drive the screening chamber and the internal screen to vibrate synchronously, provide power for feed pellet grading, realize the function of pellet screening layer by layer along the screen, improve the screen hole pass rate, and extend the service life. Attached Figure Description

[0008] Figure 1 This is a three-dimensional schematic diagram of a feed pellet grading and screening device proposed in this utility model; Figure 2 This is a schematic diagram of the structure of the screen of a feed pellet grading and screening device proposed in this utility model; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the limiting cylinder of a feed pellet grading and screening device proposed in this utility model; Figure 5 This is a schematic diagram of the limiting disc of a feed pellet grading and screening device proposed in this utility model.

[0009] Legend: 1. Screening chamber; 2. Feed inlet; 3. Discharge outlet; 4. Vibration mechanism; 41. Connecting column one; 42. Drive shaft; 43. Support block; 44. Drive disc; 45. Motor; 46. Limiting disc; 47. Sliding groove; 5. Locking mechanism; 51. Hand-tightening wheel; 52. Threaded rod; 53. Limiting cylinder; 54. Fixing block; 55. Connecting column two; 56. Limiting assembly; 561. Fixing plate; 562. Sliding plate; 563. Limiting shaft; 564. Fixing strip; 6. Screen; 7. Handshake; 8. Sliding groove. Detailed Implementation

[0010] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0011] Example: A feed pellet grading and screening device, referring to Figure 1 , Figure 3 and Figure 4The system includes a screening chamber 1, with a feed inlet 2 fixedly connected to the top of the screening chamber 1. The feed inlet 2 is used to feed the feed pellets to be screened into the screening chamber 1, ensuring a continuous supply of materials. Multiple discharge outlets 3 are fixedly connected to the outer side of the screening chamber 1, each corresponding to a different particle size grade, allowing for the classified discharge of graded materials. Multiple locking mechanisms 5 are installed inside the screening chamber 1 to securely fix the screen 6 within the screening chamber 1, preventing displacement of the screen 6 during screening and thus preventing mixing of grades. A vibration mechanism 4 is installed at the bottom of the screening chamber 1. The oscillation mechanism 4 causes the particles in the cavity to spread evenly under the action of oscillation force and pass through the screen 6 for classification. The screening chamber 1 has multiple sliding grooves 8 inside. The screening chamber 1 provides installation space for each component and accommodates the particle screening process. The screen 6 is slidably connected inside the sliding groove 8. The sliding groove 8 provides guidance for the installation and disassembly of the screen 6, ensuring that the screen 6 can slide into the designated position. The screen 6 is fixedly connected to the outside with a handle 7. The screen 6 separates particles of different sizes through different apertures. The handle 7 makes it convenient for operators to hold and push and pull the screen 6, improving the ease of installation and disassembly of the screen 6. Specifically, the operator holds hand 7 and pushes the screen 6 with the corresponding aperture along the slide 8 in the screening chamber 1. The screen 6 is fixed by the locking mechanism 5 to prevent displacement. After starting, the vibration mechanism 4 drives the screening chamber 1 to vibrate. Feed pellets are put in from the feed inlet 2. The pellets are screened layer by layer under the action of vibration force and gravity: coarse particles are discharged from the corresponding discharge outlet 3, qualified particles are discharged from the designated discharge outlet 3 after being screened by the screen 6, and fine particles and powder are discharged from the corresponding discharge outlet 3 after passing through the lower screen 6, thus realizing graded screening.

[0012] The locking mechanism 5 includes a hand-cranked wheel 51, which is externally rotatably connected to the inside of the screening chamber 1. A threaded rod 52 is fixedly connected to the outside of the hand-cranked wheel 51. The hand-cranked wheel 51 provides driving force for the locking mechanism 5. A limiting cylinder 53 is externally threaded to the threaded rod 52. The threaded rod 52 rotates with the hand-cranked wheel 51, driving the limiting cylinder 53 to move through the threaded transmission. Two fixed blocks 54 are slidably connected to the outside of the limiting cylinder 53. The limiting cylinder 53 is pushed by the threaded rod 52. The downward movement causes the fixed block 54 to move. The two fixed blocks 54 are slidably connected to the adjacent side of the two fixed blocks 54. The fixed block 54 rotates around the limiting shaft 563 under the action of the limiting cylinder 53 to clamp and fix the connecting column 55. The connecting column 55 is provided with a limiting component 56 on its outside. The connecting column 55 is used to transmit the clamping force of the fixed block 54 to fix the screen 6. The limiting component 56 assists the locking mechanism 5 to stably connect the screen 6 to the screening chamber 1 and enhance the fixing effect of the screen 6. Specifically, when the locking mechanism 5 is working, the operator rotates the hand-cranked wheel 51 inside the screening chamber 1, causing the threaded rod 52 to rotate. The threaded rod 52 pushes the external limiting cylinder 53 to move through the threaded transmission. The limiting cylinder 53 then drives the fixed blocks 54 that are slidably connected on both sides to rotate around the limiting shaft 563, so that the fixed blocks 54 clamp and fix the connecting post 2 55 on the adjacent side. The connecting post 2 55, together with the external limiting component 56, transmits the fixing force to the screen 6, ultimately achieving a stable lock of the screen 6 in the screening chamber 1, preventing displacement during screening. The limiting component 56 includes a fixing plate 561, which is externally fixedly connected to the outside of the connecting column 55 and the outside of the screen 6. The fixing plate 561 transmits the fixing force of the locking mechanism 5 to the screen 6, thereby fixing the screen 6 as a whole. Sliding plates 562 are fixedly connected to both sides of the screen 6. The sliding plates 562 are externally slidably connected to the inside of the screening chamber 1. The sliding plates 562 cooperate with the inside of the screening chamber 1 to further limit the movement direction of the screen 6 and lift the screen. 6. Stability after installation: The two fixed blocks 54 are internally connected to a limiting shaft 563. The limiting shaft 563 provides a fulcrum for the fixed blocks 54, allowing the fixed blocks 54 to rotate stably around it to clamp the connecting column 2 55. A fixing strip 564 is fixedly connected to the middle of the outside of the limiting shaft 563. The fixing strip 564 is fixedly connected to the outside of the screening chamber 1. The fixing strip 564 fixes the limiting shaft 563 to the outside of the screening chamber 1, ensuring that the position of the limiting shaft 563 remains unchanged and providing stable support for the rotation of the fixed blocks 54. Specifically, when the limiting component 56 is working, the sliding plates 562 on both sides of the screen 6 slide along the inner wall of the screening chamber 1, assisting in the installation of the screen 6 and limiting its direction of movement. The fixing strip 564 fixes the limiting shaft 563 to the outside of the screening chamber 1, providing a stable rotation fulcrum for the fixing block 54. When the fixing block 54 clamps the connecting column 2 55, the fixing plate 561 fixed to the connecting column 2 55 transmits the clamping force to the screen 6, and finally cooperates with the locking mechanism 5 to achieve a stable fixation of the screen 6, ensuring that the screen 6 does not shift during screening.

[0013] Reference Figure 2 and Figure 5The oscillation mechanism 4 includes a connecting column 41, the top of which is fixedly connected to the four bottom corners of the screening chamber 1. A drive shaft 42 is fixedly connected to the bottom of the connecting column 41. The connecting column 41 transmits the motion of the drive shaft 42 to the screening chamber 1, causing the screening chamber 1 to oscillate. A drive disc 44 is fixedly connected to the outside of one of the drive shafts 42. A support block 43 is rotatably connected to the outside of the drive disc 44. The drive disc 44 drives the connected drive shaft 42 to perform eccentric motion, providing core power transmission for the oscillation mechanism 4. A motor 45 is fixedly connected inside the support block 43. The support block 43 provides mounting support for the drive disc 44, the motor 45, and the limiting disc 46, ensuring... All components are in stable positions. The drive end of the motor 45 is fixedly connected to the bottom center of the transmission disk 44. The motor 45 drives the transmission disk 44 to move by rotating the drive end. The top of the other support block 43 is fixedly connected to the limit disk 46. The limit disk 46 has a sliding groove 47 on its outside. The limit disk 46 provides a sliding track for the transmission shaft 42 and limits the range of motion of the transmission shaft 42. The inside of the sliding groove 47 is slidably connected to the outside of the transmission shaft 42. The sliding groove 47 makes the transmission shaft 42 drive the screening chamber 1 to make uniform oscillating motion. The transmission shaft 42 transmits the power of the transmission disk 44. One of the shafts moves eccentrically with the transmission disk 44, and the others slide along the sliding groove, together driving the screening chamber 1 to oscillate. Specifically, when the oscillation mechanism 4 is working, the support block 43 fixes the motor 45 and the limiting disk 46. The drive end of the motor 45 drives the transmission disk 44 to rotate. The transmission disk 44 causes the connected transmission shaft 42 to make eccentric motion. The transmission shaft 42 transmits the motion to the screening chamber 1 through the connecting column 41. The other transmission shafts 42 slide along the sliding groove 47 of the limiting disk 46, which together drive the screening chamber 1 to oscillate evenly, providing power for the grading of feed particles in the chamber.

[0014] The implementation principle of this application embodiment is as follows: Before starting the device, the assembly and locking of the multi-layer screen 6 must be completed according to the target grading specifications of the feed particles to be screened, to avoid the screen 6 shifting during the screening process and causing mixed grades. Screens 6 with corresponding aperture sizes are selected according to the grading requirements, with the aperture size decreasing from top to bottom to form a grading system. The operator holds the handle 7 on the outside of the screen 6 and aligns the sliding plates 562 on both sides of the screen 6 with the sliding grooves 8 on the inner wall of the screening chamber 1, and pushes them smoothly into the screening chamber 1 along the sliding grooves 8 until the fixing plate 5 on the outside of the screen 6 is reached. 61. Push the screen 6 into the screening chamber 1. After the screen 6 is fully pushed in, the connecting column 55 outside the fixed plate 561 slides between the two fixed blocks 54. The operator rotates the hand-cranked wheel 51 on the outside of the screening chamber 1, which drives the threaded rod 52 to rotate synchronously. Since the threaded rod 52 is threadedly connected to the limiting cylinder 53, the rotation of the threaded rod 52 will push the limiting cylinder 53 to move, thereby driving the two fixed blocks 54 to rotate around the limiting shaft 563, thereby clamping and fixing the connecting column 55 to ensure the stability of the screen 6. After the screen 6 is locked, the motor 45 drives the transmission disc 44 to rotate. The rotation of the transmission disc 44 drives the transmission shaft 42 to make an eccentric motion. The transmission shaft 42 drives the top connecting column 41 to move, thereby causing the remaining connecting columns 41 and the bottom transmission shaft 42 at the bottom of the screening chamber 1 to slide inside 47. At this time, the screen 6 in the screening chamber 1 vibrates synchronously with the screening chamber 1 to perform screening. After the oscillation mechanism 4 is running stably, feed pellets are continuously fed into the feed inlet 2. Under the action of oscillation force and gravity, the pellets move down the screen 6 layer by layer. They first fall to the upper coarse screen 6. During the oscillation, the smaller particles fall into the middle fine screen 6, while the larger coarse particles are discharged from the corresponding discharge outlet 3, completing the first-stage separation. The middle fine screen 6 continues to screen, and the smaller particles fall into the lower fine screen 6. Qualified particles are discharged from the qualified discharge outlet 3. In the lower fine screen 6, fine particles and powder pass through the screen and are discharged from the fine particle discharge outlet 3 through the guide plate. The remaining adhering trace amounts of powder are also discharged from the bottom under the oscillation.

[0015] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A feed pellet grading and screening device, comprising a screening chamber (1), characterized in that: The top of the screening chamber (1) is fixedly connected to a feed inlet (2), and a plurality of discharge outlets (3) are fixedly connected to the outer side of the screening chamber (1). A plurality of locking mechanisms (5) are provided inside the screening chamber (1), and a vibration mechanism (4) is provided at the bottom of the screening chamber (1). A plurality of sliding grooves (8) are opened inside the screening chamber (1), and a screen (6) is slidably connected inside the sliding grooves (8). A handle (7) is fixedly connected to the outside of the screen (6). The locking mechanism (5) includes a hand-twisting wheel (51), which is rotatably connected to the inside of the screening chamber (1). A threaded rod (52) is fixedly connected to the outside of the hand-twisting wheel (51). A limiting cylinder (53) is threadedly connected to the outside of the threaded rod (52). Two fixing blocks (54) are slidably connected to the outside of the limiting cylinder (53). A connecting column two (55) is slidably connected to the adjacent side of the two fixing blocks (54). A limiting component (56) is provided on the outside of the connecting column two (55).

2. The feed pellet grading and screening device according to claim 1, characterized in that: The oscillation mechanism (4) includes a connecting column (41), the top of which is fixedly connected to the bottom four corners of the screening chamber (1), and a drive shaft (42) is fixedly connected to the bottom of the connecting column (41).

3. The feed pellet grading and screening device according to claim 1, characterized in that: The limiting component (56) includes a fixing plate (561), which is fixedly connected to the outside of the connecting column 2 (55) and the outside of the screen (6).

4. The feed pellet grading and screening device according to claim 3, characterized in that: The screen (6) is fixedly connected to the outer sides of the sliding plate (562), and the outer side of the sliding plate (562) is slidably connected to the inside of the screening chamber (1).

5. The feed pellet grading and screening device according to claim 4, characterized in that: The two fixed blocks (54) are internally rotatably connected to a limiting shaft (563), and a fixing strip (564) is fixedly connected to the outside of the limiting shaft (563). The outside of the fixing strip (564) is fixedly connected to the outside of the screening chamber (1).

6. The feed pellet grading and screening device according to claim 2, characterized in that: One of the drive shafts (42) is externally fixedly connected to a drive disc (44), and the drive disc (44) is externally rotatably connected to a support block (43).

7. The feed pellet grading and screening device according to claim 6, characterized in that: A motor (45) is fixedly connected inside the support block (43), and the drive end of the motor (45) is fixedly connected to the bottom center of the transmission disc (44).

8. The feed pellet grading and screening device according to claim 7, characterized in that: The top of the other support block (43) is fixedly connected to a limiting disk (46), and a sliding groove (47) is provided on the outside of the limiting disk (46). The inside of the sliding groove (47) is slidably connected to the outside of the transmission shaft (42).

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