Winter jujube size grading device

Abstract

The utility model relates to a winter jujube size grading device belongs to the technical field of grading screening equipment, including outer box, grading roller, drive mechanism, feed hopper, discharge hopper, and grading roller includes two connecting ring plates and two end circle plates, and the multiple screen bars are fixed with circular array between the adjacent connecting ring plate, between connecting ring plate and end circle plate, and the spacing is established between the adjacent screen bars, and the multiple high -pressure spray nozzles of arranging along left and right direction are equipped with in the upper portion of screen bar, and high -pressure spray nozzle is connected with gas delivery device, and the bottom of each discharge hopper is equipped with the conveyor of arranging along front -back direction, and the top of conveyor is equipped with the receiving basket, the utility model discloses can effectively blow off the winter jujube of being stuck in the spacing between screen bar, guarantees the normal operation of grading device, improves the grading efficiency, is convenient for the collection and processing of winter jujube, avoids the winter jujube scattering, improves the receiving efficiency and collection effect after the winter jujube grading.

Description

Technical Field

[0001] This utility model belongs to the technical field of grading and screening equipment, and in particular relates to a jujube size grading device. Background Technology

[0002] In the production and processing of winter jujubes, grading is a crucial step. Existing roller-type winter jujube grading devices use grading holes of different sizes on the roller to separate the jujubes by size. However, in actual use, there is a problem where winter jujubes get stuck in the grading holes, affecting grading efficiency and the normal operation of the equipment. Furthermore, the existing devices are not convenient or efficient in receiving the graded jujubes, as they easily scatter, hindering subsequent collection and processing. Utility Model Content

[0003] The present invention mainly addresses the technical problems mentioned in the background art by providing a jujube size grading device.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: a jujube size grading device, comprising an outer casing, an inclined grading roller rotatably mounted inside the outer casing, a drive mechanism connected to one end of the grading roller, a feed hopper on the outer casing, and multiple discharge hoppers at the bottom of the outer casing. The grading roller includes two connecting ring plates and two end ring plates. Multiple screening rods are fixed in a circular array between adjacent connecting ring plates and between the connecting ring plates and the end ring plates. There is a spacing between adjacent screening rods. The spacing between the screening rods on the left side of the connecting ring plates is smaller than the spacing between the screening rods on the right side. Multiple high-pressure nozzles are arranged in the left-right direction above the screening rods. The high-pressure nozzles are connected to an air supply device. A conveyor is arranged in the front-back direction at the bottom of each discharge hopper, and a receiving basket is provided on the top of the conveyor.

[0005] As a preferred embodiment, the gas delivery device includes a connecting pipe fixedly connected to the top of the high-pressure nozzle, a gas delivery pipe connected to the top of the connecting pipe, an air inlet pipe fixed in the middle of the gas delivery pipe, and a valve on the air inlet pipe to facilitate the delivery of high-pressure gas and to facilitate the opening of the nozzle.

[0006] As a preferred embodiment, the conveyor includes two U-shaped plates arranged in a front-to-back direction. Multiple idlers are rotatably mounted inside the U-shaped plates in the front-to-back direction. A driven sprocket is fixed to the outer end of the rotating shaft of each idler. Driven sprockets on the same side are connected by a chain. A driven sprocket is fixed to the inner end of the rotating shaft of one of the idlers. Driven sprocket is connected to a driven sprocket three by a chain two. Driven sprocket two is fixedly connected to a drive shaft. A conveyor frame is fixed to the bottom of the U-shaped plates. The drive shaft is rotatably mounted on the conveyor frame. A driven sprocket four is fixed in the middle of the drive shaft. Driven sprocket four is connected to a drive sprocket by a chain three. The drive sprocket is fixedly connected to a conveyor motor. The conveyor motor can drive the drive shaft to rotate, which in turn drives the idlers to rotate, causing the receiving baskets on the idlers to move.

[0007] As a preferred embodiment, the lower part of the end ring plates at both ends is provided with a pair of support rollers that roll to support them, and a closing plate is fixed on the outer side of the right end ring plate. The outer side of the closing plate is provided with no less than two discharge ports. The support rollers can conveniently support the grading rollers, and the discharge ports can conveniently discharge larger winter dates.

[0008] As a preferred embodiment, the drive mechanism includes a universal joint fixed at the center of the enclosed plate. A bearing housing is rotatably mounted on the right end of the universal joint, and the bearing housing is fixed to the outer housing. A drive sprocket one is fixed to the right end of the universal joint. Drive sprocket one is connected to drive sprocket two via chain four. Drive sprocket two is fixedly connected to a reducer. A driven pulley is fixed to the output end of the reducer. The driven pulley is connected to a drive pulley via a belt. A rotary motor is fixedly connected to the drive pulley. The rotation of the rotary motor drives the reducer to rotate, which in turn drives the universal joint to rotate, thereby driving the grading roller to rotate.

[0009] As a preferred embodiment, each connecting ring plate is provided with a baffle plate below it, the baffle plate is located between adjacent discharge hoppers, and there is a gap between the top of the baffle plate and the connecting ring plate. A baffle plate fixed to the bottom of the outer box is provided on the right side of the discharge port to prevent the graded jujubes from being mixed together again.

[0010] As a preferred option, a limit baffle is fixed to the outside of the U-shaped plate to prevent the receiving basket from deviating.

[0011] As a preferred embodiment, the lower end of the feed hopper extends into the left end of the grading roller. A lifting and filtering machine is located on the left side of the outer casing. This machine includes an inclined chain conveyor, with scrapers fixed to the top of the chain plates. The chain plates have evenly distributed filter holes, and a movable support leg is fixed to the bottom of the frame. A water collection trough, fixed to the movable support leg, is located below the chain conveyor. This design allows for better lifting of the washed jujubes to the feed hopper and filters out moisture during the lifting process.

[0012] As a preferred option, the bottom of the mobile support frame is equipped with wheels for easy movement, allowing the jujubes to fall into the feed hopper more easily. The front and rear sides of the chain plate elevator are equipped with baffles, and a drain pipe is fixed at the lower end of the water receiving tank. The drain pipe is equipped with a valve to facilitate the discharge of wastewater.

[0013] This utility model has the following beneficial effects:

[0014] The grading roller comprises two connecting ring plates and two end ring plates. Multiple screening rods are fixed in a circular array between adjacent connecting ring plates and between the connecting ring plates and the end ring plates. Spacing is provided between adjacent screening rods to grade and screen the jujubes, better preventing them from getting stuck. High-pressure nozzles are located above the screening rods, spraying airflow into the grading roller to effectively blow off jujubes stuck in the gaps between the screening rods, ensuring the normal operation of the grading device and improving grading efficiency. A conveyor is installed at the bottom of the discharge hopper, transporting the graded jujubes to a receiving basket for collection and processing, preventing jujube scattering and improving the receiving efficiency and collection effect after grading. Attached Figure Description

[0015] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0016] The structures, proportions, sizes, etc. disclosed in this specification are only used to complement the content disclosed in the specification for those skilled in the art to understand and read, and are not intended to limit the conditions under which this utility model can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 2 for Figure 1 Partial structural diagram Figure 1 ;

[0019] Figure 3 for Figure 1 Partial structural diagram Figure 2 ;

[0020] Figure 4This is a schematic diagram of the side structure of the connecting ring plate;

[0021] Figure 5 A schematic diagram illustrating the layout of the water filter.

[0022] Figure 6 To illustrate the structure of the water filter;

[0023] Legend: 1. Feed hopper; 2. End ring plate; 3. Air supply pipe; 4. High-pressure nozzle; 5. Screening rod; 6. Connecting ring plate; 7. Air inlet pipe; 8. Discharge port; 9. Sealing plate; 10. Outer casing; 11. Universal shaft; 12. Baffle; 13. Rotating motor; 14. Support roller; 15. Discharge hopper; 16. Receiving basket; 17. Material baffle; 18. Roller; 19. Drive shaft; 20. Conveyor motor; 21. Limit baffle; 22. Chain plate elevator; 23. Material baffle; 24. Scraper; 25. Water receiving trough; 26. Drain pipe. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0025] Example 1: As Figure 1 -to Figure 6 This utility model is a jujube size grading device, including an outer box 10, in which an inclined grading roller is rotatably installed. One end of the grading roller is connected to a drive mechanism. The outer box 10 is provided with a feed hopper 1, and the bottom of the outer box 10 is provided with multiple discharge hoppers 15. The grading roller includes two connecting ring plates 6 and two end ring plates 2. Multiple screening rods 5 are fixed in a circular array between adjacent connecting ring plates 6 and between connecting ring plates 6 and end ring plates 2. There is a gap between adjacent screening rods 5. The gap between the screening rods 5 on the left side of the connecting ring plate 6 is smaller than the gap between the screening rods 5 on the right side. Multiple high-pressure nozzles 4 are arranged in the left-right direction above the screening rods 5. The high-pressure nozzles 4 are connected to an air supply device. The bottom of each discharge hopper 15 is provided with a conveyor arranged in the front-back direction. The top of the conveyor is provided with a receiving basket 16.

[0026] In use, the receiving basket 16 is placed on the conveyor below the corresponding discharge hopper 15. The drive mechanism drives the grading roller to rotate. The jujubes to be graded enter from the feed hopper 1 and fall into the left end of the grading roller. As the grading roller rotates, the jujubes roll from left to right. When they roll, smaller jujubes fall through the gaps between the screening rods 5 and then fall into the corresponding receiving basket 16 through the discharge hopper 15 below, thus completing the grading of the jujubes by size. When the jujubes in the receiving basket 16 reach a certain height, the conveyor starts and transports the full receiving basket 16 out. The conveyor also transports a new empty receiving basket 16. After a period of use, air can be introduced into the high-pressure nozzle 4 to blow away the jujubes stuck in the gaps between the screening rods 5 that have rotated to the top.

[0027] In Example 2, based on Example 1, the gas delivery device includes a connecting pipe fixedly connected to the top of the high-pressure nozzle 4, a gas delivery pipe 3 connected to the top of the connecting pipe, an air inlet pipe 7 fixed in the middle of the air delivery pipe 3, and a valve on the air inlet pipe 7. A baffle ring is provided at the left end of the left end plate 2.

[0028] The conveyor includes two U-shaped plates arranged in a front-to-back direction. Multiple idler rollers 18 are rotatably mounted inside the U-shaped plates in the front-to-back direction. A driven sprocket 1 is fixed to the outer end of the rotating shaft of each idler roller 18. Driven sprocket 1 on the same side is connected by a chain. A driven sprocket 2 is fixed to the inner end of the rotating shaft of one of the idler rollers 18. Driven sprocket 3 is connected to driven sprocket 2 by chain 2. Driven sprocket 2 is fixedly connected to a drive shaft 19. A conveyor frame is fixed to the bottom of the U-shaped plates. The drive shaft 19 is rotatably mounted on the conveyor frame. A driven sprocket 4 is fixed to the middle of the drive shaft 19. Driven sprocket 4 is connected to a drive sprocket by chain 3. The drive sprocket is fixedly connected to a conveyor motor 20. Rotation of the conveyor motor 20 drives the drive shaft 19 to rotate, which in turn drives the idler rollers 18 to rotate, causing the receiving baskets 16 on the idler rollers 18 to move. The conveyor motor 20 is a stepper motor.

[0029] The lower part of the end ring plate 2 at both ends is provided with a pair of support rollers 14 for rolling support. The outer side of the right end ring plate 2 is fixed with a closing plate 9, and the outer side of the closing plate 9 is evenly provided with no less than two discharge ports 8. Some larger jujubes will not be able to pass through the gap, so they will roll to the right end closing plate 9. When the discharge port 8 rotates to the lower part, the jujubes will be discharged from the discharge port 8.

[0030] The drive mechanism includes a universal joint 11 fixed at the center of the enclosed plate 9. A bearing seat is rotatably mounted on the right end of the universal joint 11, and the bearing seat is fixed on the outer housing 10. A drive sprocket 1 is fixed to the right end of the universal joint 11. A drive sprocket 2 is connected to the drive sprocket 1 via a chain 4. A reducer is fixedly connected to the drive sprocket 2. A driven pulley is fixed to the output end of the reducer. The driven pulley is connected to a drive pulley via a belt. A rotary motor 13 is fixedly connected to the drive pulley. When the rotary motor 13 rotates, it drives the reducer to rotate, which in turn drives the universal joint 11 to rotate via the drive sprocket 1, chain 4, and drive sprocket 2, and then drives the grading roller to rotate.

[0031] Below each connecting ring plate 6 is a baffle plate 17, positioned between adjacent discharge hoppers 15. A gap exists between the top of the baffle plate 17 and the connecting ring plate 6. A baffle plate 12, fixed to the bottom of the outer casing 10, is located on the right side of the discharge port 8. The baffle plate 17 separates the graded jujubes during discharge, preventing re-mixing. The jujubes discharged from the discharge port 8 are blocked by the baffle plate 12 and fall into the rightmost discharge hopper 15.

[0032] A limit baffle 21 is fixed on the outside of the U-shaped plate.

[0033] The lower end of the feed hopper 1 extends into the left end of the grading roller. A lifting and filtering machine is located on the left side of the outer casing 10. This machine includes an inclined chain plate elevator 22. A scraper 24 is fixed to the top of the chain plate of the chain plate elevator 22. Filter holes are evenly distributed on the chain plate of the chain plate elevator 22. A movable support leg is fixed to the bottom of the frame of the chain plate elevator 22. A water collection trough 25, fixed to the movable support leg, is located below the chain plate elevator 22. The washed jujubes are conveyed to the upper part of the lower end of the chain plate elevator 22, and then lifted to the feed hopper 1 for feeding. During lifting, water from the jujubes falls through the filter holes on the chain plate into the water collection trough 25 for collection.

[0034] The bottom of the mobile outrigger is equipped with traveling wheels. The front and rear sides of the chain plate elevator 22 are equipped with baffle plates 23. The left end of the baffle plate 23 is fixed with a blocking plate along the front and rear direction. There is a gap between the bottom of the blocking plate and the top of the scraper 24. The lower end of the water tank 25 is fixed with a drain pipe 26. The drain pipe 26 is equipped with a valve, which can be opened periodically to drain water.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A jujube size grading device, comprising an outer casing (10), an inclined grading roller rotatably mounted inside the outer casing (10), a drive mechanism connected to one end of the grading roller, a feed hopper (1) on the outer casing (10), and a plurality of discharge hoppers (15) at the bottom of the outer casing (10), characterized in that: The grading roller includes two connecting ring plates (6) and two end ring plates (2). Multiple screening rods (5) are fixed in a circular array between adjacent connecting ring plates (6) and between connecting ring plates (6) and end ring plates (2). There is a gap between adjacent screening rods (5). The gap between the screening rods (5) on the left side of the connecting ring plate (6) is smaller than the gap between the screening rods (5) on the right side. Multiple high-pressure nozzles (4) are arranged in the left-right direction above the screening rods (5). The high-pressure nozzles (4) are connected to an air supply device. Each discharge hopper (15) has a conveyor arranged in the front-back direction at the bottom. The top of the conveyor has a receiving basket (16).

2. The jujube size grading device according to claim 1, characterized in that: The gas delivery device includes a connecting pipe that is fixedly connected to the top of the high-pressure nozzle (4), a gas delivery pipe (3) connected to the top of the connecting pipe, an air inlet pipe (7) fixed in the middle of the gas delivery pipe (3), and a valve on the air inlet pipe (7).

3. The jujube size grading device according to claim 1, characterized in that: The conveyor includes two U-shaped plates arranged in the front-to-back direction. Multiple idlers (18) are rotatably installed inside the U-shaped plates in the front-to-back direction. A driven sprocket is fixed to the outer end of the shaft of the idler (18). The driven sprockets on the same side are connected by a chain. A driven sprocket is fixed to the inner end of the shaft of one of the idlers (18). A driven sprocket is connected to a driven sprocket three by a chain two. A drive shaft (19) is fixedly connected to the driven sprocket. A conveyor frame is fixed to the bottom of the U-shaped plates. The drive shaft (19) is rotatably installed on the conveyor frame. A driven sprocket four is fixed in the middle of the drive shaft (19). A drive sprocket is connected to the driven sprocket by a chain three. A conveyor motor (20) is fixedly connected to the drive sprocket.

4. The jujube size grading device according to claim 3, characterized in that: The lower part of the end ring plate (2) at both ends is provided with a pair of support rollers (14) for rolling support. The outer side of the right end ring plate (2) is fixed with a closing plate (9). The outer side of the closing plate (9) is provided with no less than two discharge ports (8).

5. A jujube size grading device according to claim 4, characterized in that: The drive mechanism includes a universal joint (11) fixed at the center of the closed plate (9). A bearing seat is rotatably mounted on the right end of the universal joint (11). The bearing seat is fixed on the outer housing (10). A drive sprocket one is fixed on the right end of the universal joint (11). A drive sprocket two is connected to the drive sprocket one through a chain four. A reducer is fixedly connected to the drive sprocket two. A driven pulley is fixed at the output end of the reducer. A drive pulley is connected to a drive pulley through a belt. A rotating motor (13) is fixedly connected to the drive pulley.

6. A jujube size grading device according to claim 4, characterized in that: Each connecting ring plate (6) is provided with a baffle plate (17) below it. The baffle plate (17) is located between adjacent discharge hoppers (15). There is a gap between the top of the baffle plate (17) and the connecting ring plate (6). A baffle plate (12) fixed to the bottom of the outer box (10) is provided on the right side of the discharge port (8).

7. A jujube size grading device according to claim 3, characterized in that: A limit baffle (21) is fixed on the outside of the U-shaped plate.

8. A jujube size grading device according to claim 1, characterized in that: The lower end of the feed hopper (1) extends into the left end of the grading roller. A lifting filter is provided on the left side of the outer casing (10). The lifting filter includes an inclined chain plate elevator (22). A scraper (24) is fixed on the top of the chain plate of the chain plate elevator (22). Filter holes are evenly provided on the chain plate of the chain plate elevator (22). A movable support leg is fixed at the bottom of the frame of the chain plate elevator (22). A water receiving trough (25) fixed on the movable support leg is provided below the chain plate elevator (22).

9. A jujube size grading device according to claim 1, characterized in that: The bottom of the mobile support frame is equipped with a traveling wheel, and the front and rear sides of the chain plate elevator (22) are equipped with baffle plates (23). The lower end of the water receiving tank (25) is fixed with a drain pipe (26), and a valve is provided on the drain pipe (26).

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