Multi-shaft multi-stage screening machine

Abstract

A multi-shaft multi-stage screening machine comprises a rack, a screening box, a screening plate and a driving part. The screening box is arranged on the rack and comprises two cavities. The chambers are arranged side by side, and a channel is arranged at one end of the attached position and communicated with the chambers on the two sides. A screen and a rotating frame are arranged in the cavity; a feeding hole and a discharging hole are formed in the side walls of the two sides of the screening box correspondingly and communicate with the cavities in the two sides correspondingly. An opening is formed in the bottom of the screening box; the rotating frame is rotationally arranged in the cavity; a plurality of supporting rods are arranged on the rotating frame; the screen is arranged around the rotating frame; the sieve plate is arranged below the opening at the bottom of the box body, and is provided with a plurality of sieve holes; the driving part is arranged on the rack and comprises a motor, a plurality of belt wheels and a plurality of belts; the plurality of belt wheels are respectively arranged on a rotating shaft of the rotating frame; the belts are respectively wound on the belt wheels; the motor is used for driving the belt wheel to rotate. The multi-stage screening device solves the problems that an existing multi-stage screening device is complex in structure and large in occupied area due to the fact that a plurality of screening units need to be connected in series for use, and operation cost and maintenance difficulty are improved.

Description

Technical Field

[0001] This utility model relates to the field of agricultural product screening, specifically to a multi-axis, multi-stage screening machine. Background Technology

[0002] In the agricultural product processing industry, raw material screening is a crucial step in ensuring product quality and subsequent processing efficiency. Most existing screening equipment has a simple structure and single function, unable to achieve multi-stage screening and automated operation, resulting in low production efficiency and high labor costs. For agricultural products requiring multi-stage screening, traditional equipment often needs to use multiple screening units in series, which not only increases the complexity and floor space required but also raises operating costs and maintenance difficulties. Therefore, the market urgently needs a device capable of efficient, continuous, multi-stage screening of agricultural products to meet the demands of the modern agricultural product processing industry. Utility Model Content

[0003] The purpose of this invention is to provide a multi-axis, multi-stage screening machine that solves the problem that existing multi-stage screening devices require multiple screening units to be used in series, resulting in complex structures, large footprints, increased operating costs, and maintenance difficulties.

[0004] The embodiments of this utility model are achieved through the following technical solutions:

[0005] A multi-axis, multi-stage screening machine, comprising:

[0006] frame;

[0007] A screening box, mounted on a frame, includes two chambers. The chambers are arranged side-by-side, with a channel at one end connecting to the two chambers. Each chamber contains a screen and a rotating frame. The side walls of the screening box have inlet and outlet holes, respectively, connecting to the two chambers. The bottom of the screening box has an opening. The rotating frame is rotatably mounted inside the chamber. Several support rods are mounted on the rotating frame. The screen surrounds the rotating frame.

[0008] A sieve plate, wherein the sieve plate is disposed below the opening at the bottom of the box body;

[0009] The drive unit, which is mounted on the frame, includes a motor, several pulleys, and several belts; the pulleys are respectively mounted on the rotating shaft of the rotating frame; the belts are respectively wound around the pulleys; and the motor is used to drive the pulleys to rotate.

[0010] The screening box also includes a top cover and a latch; the top cover is respectively openable and closable above the two side chambers; the latch is located on the top cover and is used to fix the top cover to the screening box.

[0011] The rotating frame includes a rotating shaft, several support discs, several connecting rods, and several fan plates; the side of the screening box is also provided with a mounting base; the rotating shaft is located inside the chamber, with its two ends rotatably passing through the side wall of the screening box and rotatably mounted on the mounting base; several support discs are mounted on the rotating shaft; several connecting rods surround the rotating shaft and are mounted on the support discs; several fan plates surround the rotating shaft and are mounted on the connecting plates, and are respectively located on one side of the discharge hole and the channel.

[0012] The screening box is also equipped with a feed hopper at the feed inlet and a discharge baffle at the discharge outlet.

[0013] It also includes a transfer box with its opening facing upward and located below the sieve plate, and an auger is installed inside it for rotation; one end of the auger passes through the sieve plate and is connected to a pulley.

[0014] The transfer box has a receiving port on the side away from the pulley.

[0015] It also includes a receiving machine, which is located at the receiving port of the transfer box.

[0016] The sieve plate is provided with a driving structure on one side, including a connecting shaft, an eccentric rod and a driving rod; one end of the connecting shaft is connected to a pulley, and the other end is connected to the eccentric rod; one end of the driving rod is hinged to the other end of the eccentric rod, and the other end of the driving rod is hinged to one side of the sieve plate.

[0017] The technical solution of this utility model embodiment has at least the following advantages and beneficial effects:

[0018] This utility model discloses a multi-axis, multi-stage screening machine. Employing a multi-axis, multi-stage screening structure, it utilizes two parallel chambers and a rotating frame to perform multiple screenings of materials. Materials first enter the screening box through the feed hole. The rotating frame breaks up large pieces of material, which then undergoes preliminary screening through the screen. Subsequently, the material enters another chamber through a channel for secondary screening, ensuring thorough removal of impurities. This multi-stage screening structure significantly improves screening efficiency, making it particularly suitable for agricultural products containing a high amount of impurities. The machine is equipped with a drive unit and a screen plate drive structure, enabling automated operation. The motor drives the rotating frame and screen plate via pulleys and belts, eliminating the need for manual intervention and reducing the cost and labor intensity of manual operation. Simultaneously, the vibration of the screen plate further improves screening efficiency, ensuring that materials pass evenly through the screen and preventing clogging. The screening box is equipped with a top cover and a latch for easy opening and closing, facilitating cleaning and maintenance of the screen and rotating frame. An opening at the bottom of the screening box and a transfer box below the screen plate effectively collect the screened material, preventing spillage. The transfer box is equipped with an auger, which can automatically transport materials to the receiving machine, further improving the automation level of the equipment. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the top cover opening of this utility model;

[0021] Figure 3 It is attached Figure 2 Sectional view at point AA;

[0022] Figure 4 This is an internal schematic diagram of the present invention with the top cover removed;

[0023] Figure 5 This is a schematic diagram of one side of the discharge port of this utility model.

[0024] In the diagram, 1-frame, 101-screening box, 102-feed hole, 103-feeding hopper, 104-discharge hole, 105-discharge port baffle, 106-first top cover, 107-first lock, 108-second top cover, 109-second lock, 110-motor mounting bracket, 111-motor, 201-mounting base, 202-rotating shaft, 203-support plate, 204-connecting rod, 205-support rod, 206-fan plate, 207-rotating plate, 208-screen, 3-screen plate, 401-first pulley, 402-second pulley, 403-third pulley, 404-fourth pulley, 405-fifth pulley, 501-connecting shaft, 502-eccentric rod, 503-drive rod, 601-transfer box, 602-auger, 7-receiving machine. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0027] like Figure 1-3As shown, a multi-axis, multi-stage screening machine includes a frame 1, a screening box 101, a screen plate 3, a transfer box 601, a drive unit, and a receiving machine 7. The screening box 101 is installed on the top of the frame 1. The screen plate 3 is movably disposed at the bottom of the screening box 101 and is driven by the drive unit. The transfer box 601 is installed on the frame 1 and located below the screen plate 3. The drive unit is located on the left side of the frame 1 and is used to provide power to the device. The receiving machine 7 is located on the right side of the frame 1 and connected to one side of the transfer box 601, and is used to discharge the material inside the transfer box 601 after processing. It should be noted that the receiving machine 7 is prior art, preferably a Kaman KM50J-50 automatic straw crusher / feed crusher, and is not an improvement of this embodiment. Therefore, it will not be described in detail here.

[0028] like Figure 3 and 4 As shown, the screening box 101 includes a feed hopper 103, two screens 208, a discharge port baffle 105, a first top cover 106, a first latch 107, a second top cover 108, a second latch 109, a first rotating frame, and a second rotating frame. A feed hole 102 is provided on the left side of the front of the screening box 101, and the feed hopper 103 is located at the feed hole 102. Users can pour materials onto the feed hopper 103, allowing the materials to slide down the feed hopper 103 and out through the feed hole 106. The material is fed into the screening box 101 at point 02. A discharge hole 104 is located on the rear right side of the screening box 101, and a discharge baffle 105 is installed at the discharge hole 104. Some of the impurities after screening inside the screening box 101 can be discharged through the discharge hole 104. The discharge baffle 105 can be used to attach a collection bag for easy collection of impurities and to prevent splashing. The top and bottom of the screening box 101 have openings to allow material to fall from the bottom opening into the transfer box 601. The screening box 101 is divided into two chambers: the first chamber is near the feed inlet, and the second chamber is near the discharge outlet. A first rotating frame and a second rotating frame are arranged parallel to each other and rotatably positioned within the two chambers of the screening box 101. Two screens 208 are arranged side-by-side within the two chambers of the screening box 101. The screens 208 are semi-circular in shape, surrounding the first and second rotating frames and positioned below them. A channel is provided at the right end of the adjacent chambers on both sides, connecting to the inside of the screens 208 in both chambers. Channels are provided at both the feed inlet and discharge outlet, connecting to the inside of the screens 208. Material processed by the rotating frames can fall from the screens 208. A first top cover 106 and a second top cover 108 are rotatably positioned above the first and second chambers, respectively. A first latch 107 and a second latch 109 are used to secure the first top cover 106 and the second top cover 108, respectively.

[0029] Specifically, the locking mechanism includes a hook, a rotating buckle, and a pull ring; the hook is located on the edge of the top of the screening box 101 away from the hinge of the top cover; the rotating buckle is rotatably located on the outer wall of the top cover away from its hinge; one end of the pull ring is rotatably located on the rotating buckle; first, rotate the rotating buckle downward and put the pull ring on the hook, then rotate the rotating buckle upward to fix the top cover to the screening box 101;

[0030] More specifically, the first rotating frame includes a rotating shaft 202, several support plates 203, several connecting rods 204, several support rods 205, and several fan plates 206; the side of the screening box 101 is also provided with mounting seats 201, located at both ends of the two chambers respectively, for fixing the rotating frame; the rotating shaft 202 is located inside the first chamber, with both ends passing through the side wall of the screening box 101 and rotatably mounted on the mounting seat 201, one end of which is connected to the drive unit; several support plates 203 are arranged on the rotating shaft 202 along the axial direction of the rotating shaft 202; several connecting rods 204 surround the rotating shaft 202 and are arranged on the support plates 203, the support plates 203 being used for A connecting rod 204 is installed so that it can rotate with the rotating shaft 202, and the structural strength of the connecting rod 204 is enhanced. Several support rods 205 are respectively vertically connected to the side of the connecting rod 204 away from the axis. When the support rods 205 rotate with the rotating shaft 202, they can break up the input material, so that its branches, leaves, stems and other debris are separated from the desired product. Several fan plates 206 are respectively vertically connected to the side of the connecting rod 204 away from the axis and are located at the passage connecting the two chambers. When the fan plates 206 rotate with the rotating shaft 202, they can generate airflow, so that the lighter material is carried from the first chamber into the second chamber by the airflow for further screening.

[0031] More specifically, the second rotating frame is rotatably disposed in the second chamber and also includes several fan plates 206; the fan plates 206 are disposed around the outside of the connecting rod 204 and located at the passage connecting the two chambers, for transmitting the material brought from the first chamber into the second chamber along the axis of the second chamber; the other structures of the second rotating frame are the same as those of the first rotating frame, and will not be described in detail here; the fan plates 206 of the second rotating frame are located at the discharge port, which can discharge the separated impurities;

[0032] The frame 1 has guide rails on both sides, and the screen plate 3 is slidably mounted on both sides of the guide rails. One side of the screen plate 3 has a drive structure, including a connecting shaft 501, an eccentric rod 502, and a drive rod 503. One end of the connecting shaft 501 is rotatably mounted on a mounting base 201 on the frame 1 and connected to the drive unit, while the other end passes through another mounting base 201 and is connected to one end of the eccentric rod 502. One end of the drive rod 503 is hinged to the other end of the eccentric rod 502, and the other end of the drive rod 503 is hinged to one side of the screen plate 3. By rotating the connecting shaft 501, the eccentric rod 502 can be rotated, causing one end of the drive rod 503 to rotate and the other end to move back and forth along the guide rails, thereby driving the screen plate 3 to move back and forth along the guide rails to screen the material.

[0033] The transfer box 601 has an upward opening, and a material receiving port is provided on its right bottom, located below the screen plate 3. The bottom of the interior of the transfer box 601 is arc-shaped and equipped with an auger 602, which allows the material to move from inside the transfer box 601 to the material receiving port and be discharged along with the auger 602. One end of the rotating shaft 202 of the auger 602 passes through the side wall of the transfer box 601 and is connected to the drive unit.

[0034] The drive unit is mounted on the frame 1 and includes a motor 111, five pulleys, and three belts. The five pulleys are designated as first pulley 401, second pulley 402, third pulley 403, fourth pulley 404, and fifth pulley 405. The first pulley 401 is connected to the drive shaft of the motor 111 to provide power. The second pulley 402 is connected to one end of the rotating shaft 202 of the first rotating frame. The third pulley 403 is connected to one end of the rotating shaft 202 of the second rotating frame. The fourth pulley 404 is connected to one end of the connecting shaft 501. The fifth pulley 405 is connected to the rotating shaft 202 of the auger 602. The three belts are wound around the first pulley 401, second pulley 402, and third pulley 403; the second pulley 402 and fifth pulley 405; and the second pulley 402 and fourth pulley 404, respectively. The entire device operates through the drive of the motor 111 and the cooperation of the pulleys and belts.

[0035] The working principle of this embodiment is as follows:

[0036] This utility model discloses a multi-axis, multi-stage screening machine. The user pours the material to be screened onto the feed hopper 103, allowing it to slide down and enter the screening box 101 through the feed hole 102. The drive unit drives two rotating frames to rotate in two chambers, sequentially crushing the material and separating impurities such as branches and stems from the desired product. When the fan plate 206 rotates with the rotating shaft 202, it generates airflow, causing lighter materials to be carried by the airflow through the two chambers. At the passage, the material is brought from the first chamber into the second chamber for further screening. The separated impurities are discharged from the outlet. After being processed by the rotating frame, the material falls from the screen 208 onto the screen plate 3. The screen plate 3 vibrates back and forth under the drive of the drive unit, which separates the impurities and ensures that the material can pass through the screen holes evenly and enter the transfer box 601. Then, the material can move to the receiving port with the auger 602 inside the transfer box 601 and be discharged to the receiving machine 7 for processing, discharge and collection.

[0037] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A multi-axis, multi-stage screening machine, characterized in that, include: frame; A screening box, mounted on a frame, includes two chambers. The chambers are arranged side-by-side, with a channel at one end connecting to the two chambers. Each chamber contains a screen and a rotating frame. The side walls of the screening box have inlet and outlet holes, respectively, connecting to the two chambers. The bottom of the screening box has an opening. The rotating frame is rotatably mounted inside the chamber. Several support rods are mounted on the rotating frame. The screen surrounds the rotating frame. A sieve plate is located below the bottom opening of the box body and has a number of sieve holes. The drive unit, which is mounted on the frame, includes a motor, several pulleys, and several belts; the pulleys are respectively mounted on the rotating shaft of the rotating frame; the belts are respectively wound around the pulleys; and the motor is used to drive the pulleys to rotate.

2. The multi-axis, multi-stage screening machine according to claim 1, characterized in that, The screening box also includes a top cover and a latch; the top cover is respectively openable and closable above the two side chambers; the latch is located on the top cover and is used to fix the top cover to the screening box.

3. The multi-axis, multi-stage screening machine according to claim 1, characterized in that, The rotating frame includes a rotating shaft, several support discs, several connecting rods, and several fan plates; the side of the screening box is also provided with a mounting base; the rotating shaft is located inside the chamber, with its two ends rotatably passing through the side wall of the screening box and rotatably mounted on the mounting base; several support discs are mounted on the rotating shaft; several connecting rods surround the rotating shaft and are mounted on the support discs; several fan plates surround the rotating shaft and are mounted on the connecting plates, and are respectively located on one side of the discharge hole and the channel.

4. The multi-axis, multi-stage screening machine according to claim 1, characterized in that, The screening box is also equipped with a feed hopper at the feed inlet and a discharge baffle at the discharge outlet.

5. A multi-axis, multi-stage screening machine according to claim 1, characterized in that, It also includes a transfer box with its opening facing upward and located below the sieve plate, and an auger is installed inside it for rotation; one end of the auger passes through the sieve plate and is connected to a pulley.

6. A multi-axis, multi-stage screening machine according to claim 5, characterized in that, The transfer box has a receiving port on the side away from the pulley.

7. A multi-axis, multi-stage screening machine according to claim 6, characterized in that, It also includes a receiving machine, which is located at the receiving port of the transfer box.

8. A multi-axis, multi-stage screening machine according to claim 1, characterized in that, The sieve plate is provided with a driving structure on one side, including a connecting shaft, an eccentric rod and a driving rod; one end of the connecting shaft is connected to a pulley, and the other end is connected to the eccentric rod; one end of the driving rod is hinged to the other end of the eccentric rod, and the other end of the driving rod is hinged to one side of the sieve plate.

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