Hawthorn grading screener

Abstract

A hawthorn grading screener relates to the technical field of hawthorn sorting and comprises a feeding mechanism, a screening mechanism and a power mechanism, the feeding mechanism is connected with the screening mechanism, the power mechanism is used for driving the screening mechanism to perform periodic reciprocating vibration, the screening mechanism comprises a screening box, a feeding port is formed in the top of the screening box, and the feeding port is connected with the screening mechanism. A plurality of stages of sieve plates are arranged in the screening box, and a discharging opening is formed in the box side wall corresponding to each stage of sieve plate; the power mechanism comprises a power box, a motor is arranged in the power box, an output shaft of the motor is connected with a driving wheel, the driving wheel is connected with a plurality of driven wheels through chains, eccentric shafts are arranged at the tops of the driven wheels, and the upper ends of the eccentric shafts are connected with the bottom of the screening box. The screening box is made to periodically vibrate in a reciprocating mode in the direction of exciting force, the hawthorns jump circumferentially on the screening plate, the hawthorns of different specifications are classified through different screening holes, the automation degree is high, and the labor intensity of workers is relieved.

Description

Technical Field

[0001] The utility model relates to the technical field of hawthorn sorting, in particular to a hawthorn grading screener. Background Art

[0002] Hawthorn, also known as mountain fruit and mountain red, is a deciduous tree of the genus Crataegus in the Rosaceae family. It can reach 6 meters in height. It is a drupe fruit with a hard core, thin flesh, and a slightly sour taste. The fruit can be eaten raw or made into candied fruit cakes, and can be used as medicine after drying. It is a unique Chinese tree species that can be used as both medicine and fruit. It has the effects of lowering blood lipids, blood pressure, strengthening the heart, and resisting arrhythmia. It is also a good medicine for strengthening the spleen and appetite, digesting food, relieving stagnation, and promoting blood circulation and resolving phlegm.

[0003] After picking, hawthorn needs to be screened. For example, the Chinese utility model patent with announcement number CN211613349U discloses a "hawthorn grading and screening device for food processing", which includes a screening box with an opening at the lower left side, a screening cylinder axially mounted in the screening box, and multiple rows of sieve holes are arranged. A cylinder door is hinged at one end of the screening cylinder, and a feed pipe is connected to the cylinder door, and its axis is connected to the left side of the operating part. A shaft tube is provided at the other end of the screening cylinder, and the shaft tube extends out to the right side of the operating part. Ball bearings are installed at the feed pipe and the shaft tube and the screening box axis. A motor part is provided on the right side of the screening box, and a drive motor with a drive shaft is installed in the motor part. The motor shaft is connected to the shaft tube through a mounting coupling; a screening frame located below the screening cylinder and installed is inserted in the screening box, and insertion strips are provided on the front and rear sides of the screening frame. Insertion frames for inserting the insertion strips are provided at the front and rear sides of the screening box, so that the screening frame can be inserted or removed from the opening. The beneficial effects of this utility model are as follows: through the axially mounted screening drum inside the screening box, the feed is fed by a feed pipe connected to one side, and the axial tube provided on the other side is connected to the drive motor, which facilitates the driving of hawthorns for graded screening. By opening the drum cover to remove the screened large hawthorns, they fall into the screening frame for further screening by gravity during screening, and the screening frame is conveniently removed from the opening to take out the screened small hawthorns; the device drives the screening drum to roll and screen, and then the hawthorns are screened again by the screening frame, which facilitates graded screening. However, there are also certain drawbacks: whether taking out the large hawthorns in the screening drum or the small hawthorns in the screening frame, manual labor is required, which increases labor intensity and has a low degree of automation. Utility Model Content

[0004] In view of the above deficiencies in the prior art, the purpose of the present invention is to provide a hawthorn grading screener that can solve the above technical problems.

[0005] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0006] A hawthorn grading screener comprises a feeding mechanism, a screening mechanism and a power mechanism, wherein the feeding mechanism is connected to the screening mechanism, the power mechanism is used to drive the screening mechanism to perform periodic reciprocating vibration, the screening mechanism comprises a screening box, a feeding port is provided on the top of the screening box, a multi-stage screen plate is provided in the screening box, and a discharge port is provided on the side wall of the box corresponding to each stage of the screen plate; the power mechanism comprises a power box, a motor is provided in the power box, a driving wheel is connected to the output shaft of the motor, the driving wheel is connected to a number of driven wheels through a chain, the bottoms of the several driven wheels are fixedly connected to the partition through a bearing seat, an eccentric shaft is provided on the top of the driven wheel, the upper end of the eccentric shaft passes through the top wall of the power box and is connected to the bottom of the screening box.

[0007] Preferably, two adjacent sieve plates are staggered and tilted, with an inclination angle of 3°-6°.

[0008] Preferably, pearl cotton is bonded to the surface of the sieve plate.

[0009] Preferably, the diameter of the through hole at the top of the power box is larger than the diameter of the eccentric shaft.

[0010] Preferably, the loading mechanism includes a conveyor belt, the belt surface of the conveyor belt is provided with holes, a fan 1 is provided below the rear end of the conveyor belt, and a fan 2 is provided on one side of the conveyor belt.

[0011] Preferably, a plurality of baffles are equidistantly arranged on the upper surface of the conveyor belt.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The utility model utilizes an eccentric shaft to generate an exciting force, causing the screening box to perform periodic reciprocating vibrations in the direction of the exciting force. The hawthorns dance in a circle on the screen plate, and hawthorns of different specifications are graded through different sieve holes. The graded hawthorns are discharged through the discharge port. Loading, screening and discharging are completed in one go, with a high degree of automation, which reduces the labor intensity of workers.

[0014] 2. The conveyor belt of the utility model is provided with holes, and a fan is provided at the rear end of the conveyor belt. On the one hand, the holes can filter out the stones in the hawthorn, and on the other hand, it can achieve ventilation. The leaves mixed in the hawthorn are blown away by the cooperation of fan one and fan two. The vertical airflow blown out by fan one intersects with the horizontal airflow blown out by fan two, which is conducive to blowing the leaves to the opposite side of fan two, ensuring that the leaves will not fall into the conveyor belt for the second time.

[0015] 3. The utility model is beneficial to avoid damage to hawthorn fruits caused by vibration by laying pearl cotton on the surface of the screen plate, thereby reducing the scrap rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0017] Figure 1 This is a front view structural diagram of the utility model;

[0018] Figure 2 It is a three-dimensional structural diagram of the utility model;

[0019] Figure 3 This is a cross-sectional view of the screening mechanism of the present utility model;

[0020] Figure 4 It is a cross-sectional view of the power mechanism of the present utility model.

[0021] Description of reference numerals:

[0022] 1-feeding mechanism, 11-conveyor belt, 12-eyelet, 13-baffle, 2-screening mechanism, 21-screening box, 22-feed port, 23-screen plate, 24-discharge port, 25-PEP, 3-power mechanism, 31-power box, 32-motor, 33-driving wheel, 34-chain, 35-driven wheel, 36-bearing seat, 37-partition, 38-eccentric shaft, 4-fan 1, 5-fan 2 DETAILED DESCRIPTION

[0023] The following describes the invention of the present invention in detail by way of examples in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0024] Example 1

[0025] like Figures 1 to 4 As shown, the utility model discloses a hawthorn grading screener, comprising a feeding mechanism 1, a screening mechanism 2 and a power mechanism 3. The feeding mechanism 1 is connected to the screening mechanism 2, and the power mechanism 3 is used to drive the screening mechanism 2 to perform periodic reciprocating vibration to achieve grading.

[0026] The feeding mechanism 1 includes a conveyor belt 11, and holes 12 are opened on the belt surface of the conveyor belt 11. A fan 4 is provided below the rear end of the conveyor belt 11, and a fan 2 is provided on one side of the conveyor belt 11. By opening the holes 12 on the conveyor belt 11 and providing a fan at the rear end of the conveyor belt 11, on the one hand, the holes 12 can filter out the stones in the hawthorn, and on the other hand, it can achieve ventilation. The leaves mixed in the hawthorn are blown away by the cooperation of fan 1 4 and fan 2 5. The vertical airflow blown out by fan 1 4 intersects with the horizontal airflow blown out by fan 2 5, which is conducive to blowing the leaves to the opposite side of fan 2 5, ensuring that the leaves will not fall into the conveyor belt 11 for the second time.

[0027] Furthermore, in this embodiment, a plurality of baffles 13 are equidistantly arranged on the upper surface of the conveyor belt 11 .

[0028] The screening mechanism 2 includes a screening box 21, a feeding port 22 is provided on the top of the screening box 21, and the feeding port 22 corresponds to the unloading end position of the conveyor belt 11; three-level sieve plates 23 are provided in the screening box 21, wherein the aperture of the upper first layer of sieve plate 23 is larger than the aperture of the second layer of sieve plate 23, and the aperture of the second layer of sieve plate 23 is larger than the aperture of the third layer of sieve plate 23; pearl cotton 25 is bonded to the plate surface of the sieve plate 23, which helps to avoid vibration and damage to the hawthorn fruit; the adjacent two sieve plates 23 are staggered and tilted, and the inclination angle is 3°-6°, preferably 5°, and a discharge port 24 is provided on the box side wall corresponding to each level of the sieve plate 23, and the inclined lower end of the sieve plate 23 corresponds to the discharge port 24, which is convenient for discharging.

[0029] The power mechanism 3 includes a power box 31, in which a motor 32 is provided. A driving wheel 33 is connected to the output shaft of the motor 32. The driving wheel 33 is connected to a number of driven wheels 35 through a chain 34. The bottoms of the several driven wheels 35 are fixedly connected to the partition 37 through a bearing seat 36. An eccentric shaft 38 is provided on the top of the driven wheel 35. The upper end of the eccentric shaft 38 passes through the top wall of the power box 31 and is connected to the bottom of the screening box 21. The diameter of the through hole at the top of the power box 31 is larger than the diameter of the eccentric shaft 38. In specific applications, the motor 32 drives the driving wheel 33 to rotate, and the driving wheel 33 drives the driven wheel 35 to rotate through the chain 34, thereby driving the eccentric shaft 38 to move, thereby realizing vibration grading of the screening box 21. The utility model utilizes an eccentric shaft 38 to generate an exciting force, causing the screening box 21 to perform periodic reciprocating vibrations along the direction of the exciting force. The hawthorns perform circular jumping on the screen plate 23, and the hawthorns of different specifications are graded through different screen holes. The graded hawthorns are discharged through the discharge port 24. The loading, screening and discharging are completed in one go, with a high degree of automation, which reduces the labor intensity of workers.

[0030] Working principle: Pour hawthorn onto the conveyor belt 11 and load it through the conveyor belt 11. During the conveying process, the holes 12 on the surface of the conveyor belt 11 can filter out the stones mixed in the hawthorn, and at the same time, the leaves in the hawthorn can be blown away by the fans 1 4 and 2 5; the hawthorn is transported to the feed port 22 at the top of the screening box 21 through the conveyor belt 11, and enters the screening box 21 through the feed port 22 for step-by-step screening; during screening, the motor 32 drives the driving wheel 33 and then drives the driven wheel 35 to rotate, so that the eccentric shaft 38 on the driven wheel 35 drives the screening box 21 to perform periodic reciprocating vibration to achieve grading, and the hawthorn screened at each level is finally discharged through the corresponding discharge port 24.

[0031] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and application concept of the present invention, should be covered by the protection scope of the present invention.

Claims

1. A hawthorn grading screener, comprising a feeding mechanism (1), a screening mechanism (2) and a power mechanism (3), wherein the feeding mechanism (1) is connected to the screening mechanism (2), and the power mechanism (3) is used to drive the screening mechanism (2) to perform periodic reciprocating vibration, characterized in that: The screening mechanism (2) includes a screening box (21), a feeding port (22) is provided at the top of the screening box (21), a plurality of screen plates (23) are provided in the screening box (21), and a discharge port (24) is provided on the side wall of the box corresponding to each screen plate (23); the power mechanism (3) includes a power box (31), a motor (32) is provided in the power box (31), a driving wheel (33) is connected to the output shaft of the motor (32), the driving wheel (33) is connected to a plurality of driven wheels (35) through a chain (34), the bottoms of the plurality of driven wheels (35) are fixedly connected to the partition (37) through a bearing seat (36), an eccentric shaft (38) is provided at the top of the driven wheel (35), the upper end of the eccentric shaft (38) passes through the top wall of the power box (31) and is connected to the bottom of the screening box (21).

2. A hawthorn grading screener as claimed in claim 1, characterized in that: The adjacent sieve plates (23) are staggered and tilted, with an inclination angle of 3°-6°.

3. A hawthorn grading screener as claimed in claim 1, characterized in that: Pearl cotton (25) is bonded to the surface of the sieve plate (23).

4. A hawthorn grading screener as claimed in claim 1, characterized in that: The diameter of the through hole at the top of the power box (31) is larger than the diameter of the eccentric shaft (38).

5. A hawthorn grading and screening device as claimed in claim 1, characterized in that: The feeding mechanism (1) comprises a conveyor belt (11), a belt surface of the conveyor belt (11) is provided with holes (12), a fan 1 (4) is provided below the rear end of the conveyor belt (11), and a fan 2 (5) is provided on one side of the conveyor belt (11).

6. A hawthorn grading and screening device as claimed in claim 5, characterized in that: A plurality of baffles (13) are arranged at equal intervals on the upper surface of the conveyor belt (11).

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