A chestnut screening device

Abstract

The utility model discloses a chestnut screening device, comprising a lower box body and an upper box body located above the lower box body, the top of the upper box body is penetrated by a feed hopper fixedly connected thereto, the top of the upper box body is fixedly connected to an L-shaped plate, the top of the L-shaped plate is fixedly connected to a first motor, the output end of the first motor is fixedly connected to a spiral conveying blade, the spiral conveying blade penetrates the L-shaped plate and is rotatably connected thereto, the spiral conveying blade extends to be arranged in the feed hopper, two disassembly and assembly mechanisms are arranged between the lower box body and the upper box body, two screening mechanisms are arranged in the lower box body, and the bottom of the lower box body is penetrated by a discharge hopper fixedly connected thereto. The utility model can make steam evenly contact chestnuts through the T-shaped hollow tube and the plurality of through holes, has a good drying effect on chestnuts, and evenly dries chestnuts, thereby extending the storage time of chestnuts.

Description

Technical Field

[0001] The utility model relates to the technical field of chestnut screening, in particular to a chestnut screening device. Background Art

[0002] The prior art discloses a chestnut precision graining device with application number CN201721255582.3, wherein the upper end of the second motor is rotatably connected to the lower end of the driving shaft, and the upper end of the driving shaft is fixedly connected to a gear, the gear is meshed and connected to an annular rack, and the annular rack is fixedly connected to a movable turntable; the top of the buffer plate is hinged on the right end of the device body, a chute is set at the bottom of the buffer plate, a sliding block is slidably connected in the chute, and the right end of the sliding block is hinged to a spring telescopic column No. 1; the first motor is fixedly connected to the outside of the upper right end of the device body. The device realizes intermittent feeding through a movable turntable and a fixed disc, and a plurality of chestnut accommodating grooves with different gap sizes are set at the lower end of the graining plate, which can finely grain chestnuts according to different sizes, and the graining effect is excellent. The device has a simple and applicable structure, which greatly improves the efficiency of chestnut graining and saves labor.

[0003] In the above-mentioned authorized patent, chestnuts can be screened. When the chestnuts are screened, steam is injected through the steam inlet to dry the chestnuts. However, the chestnuts close to the steam inlet have a better drying effect, while the chestnuts far from the steam inlet have a poor drying effect, resulting in uneven drying of the chestnuts. In order to solve the above problems, a chestnut screening device is proposed in the present application. Summary of the invention

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a chestnut screening device, which can make steam contact with chestnuts evenly through the T-shaped hollow tube and the multiple through holes, has a good drying effect on the chestnuts, dries the chestnuts evenly, and extends the storage time of the chestnuts.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A chestnut screening device comprises a lower box body and an upper box body located above the lower box body, a feed hopper fixedly connected to the upper box body is penetrated at the top of the upper box body, an L-shaped plate is fixedly connected to the top of the upper box body, a first motor is fixedly connected to the top of the L-shaped plate, a spiral conveying blade is fixedly connected to the output end of the first motor, the spiral conveying blade penetrates the L-shaped plate and is rotatably connected to the L-shaped plate, the spiral conveying blade extends to the feed hopper, two disassembly and assembly mechanisms are arranged between the lower box body and the upper box body, two screening mechanisms are arranged in the lower box body, and the screening mechanism includes a rotating mechanism connected to the inner wall of the lower box body. A screening plate is connected, a discharge port is opened on the lower box body, the screening plate passes through the discharge port, the side wall of the lower box body is fixedly connected to a second motor, the output end of the second motor is fixedly connected to a transmission rod, the transmission rod passes through the lower box body and is rotatably connected thereto, the end of the transmission rod is fixedly connected to a cam, the bottom of the lower box body is penetrated by a discharge hopper fixedly connected thereto, the bottom of the lower box body is fixedly connected to an electric hot air blower, the electric hot air blower is fixedly connected to a T-shaped hollow tube, the T-shaped hollow tube passes through the lower box body and is fixedly connected thereto, and a plurality of through holes are penetrated on the T-shaped hollow tube.

[0007] Preferably, the disassembly and assembly mechanism includes a latch that passes through the upper box body and is slidably connected thereto, the outer wall of the latch is sleeved with a spring, the two ends of the spring are respectively fixedly connected to the upper box body and the latch, a positioning groove is opened on the lower box body, and the latch is inserted into the positioning groove.

[0008] Preferably, the two screening plates are both arranged at an incline.

[0009] Preferably, a plurality of sieve openings are provided through the two screening plates, and the diameter of the sieve openings of the upper screening plate is larger than the diameter of the sieve openings of the lower screening plate.

[0010] Preferably, the bottom of the lower box body is arranged in a truncated cone shape, and the discharge hopper is installed at the bottom of the lower box body.

[0011] Preferably, the plurality of through holes are distributed at equal intervals.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. The output end of the first motor drives the spiral conveying blade to rotate. The rotation of the spiral conveying blade can evenly convey the chestnuts in the feed hopper so that they fall down for even feeding, which is beneficial to the subsequent chestnut screening operation.

[0014] 2. The output end of the second motor drives the transmission rod and the cam to rotate. The continuous rotation of the cam causes the screening plate to swing and vibrate continuously to avoid chestnut blockage on the screening plate. The tilt setting of the screening plate ensures normal chestnut discharge.

[0015] 3. A large amount of hot air can be generated by the electric hot air blower, and the hot air can be discharged through multiple holes through the T-shaped hollow tube. During the movement of the hot air, the hot air contacts the chestnuts to dry them, and the chestnuts are evenly and fully contacted with the hot air to dry the moisture of the chestnuts. The chestnuts are dried evenly, which is conducive to the long-term storage of chestnuts.

[0016] 4. The staff holds the two latches and moves them back to back. During this process, the spring is stretched until the two latches are released from the positioning grooves. The lower box body and the upper box body can be separated to inspect the interior of the device.

[0017] In summary, the T-shaped hollow tube and the multiple through holes can make the steam contact the chestnuts evenly, which has a good drying effect on the chestnuts, the chestnuts are dried evenly, and the storage time of the chestnuts is extended. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a cross-sectional view of a chestnut screening device proposed in the utility model;

[0019] Figure 2 for Figure 1 A magnified view of the structure in the middle.

[0020] In the figure: 1 lower box body, 2 upper box body, 3 feed hopper, 4 L-type plate, 5 first motor, 6 spiral conveying blade, 7 screening plate, 8 discharge port, 9 second motor, 10 cam, 11 discharge hopper, 12 electric heating fan, 13 T-type hollow tube, 14 through hole, 15 latch, 16 spring, 17 positioning groove. Implementation

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Reference Figure 1-Figure 2 A chestnut screening device comprises a lower box body 1 and an upper box body 2 located above the lower box body 1. A feed hopper 3 fixedly connected to the upper box body 2 is penetrated through the top of the upper box body 2. An L-shaped plate 4 is fixedly connected to the top of the upper box body 2. A first motor 5 is fixedly connected to the top of the L-shaped plate 4. A spiral conveying blade 6 is fixedly connected to the output end of the first motor 5. The spiral conveying blade 6 penetrates the L-shaped plate 4 and is rotatably connected to the L-shaped plate 4. The spiral conveying blade 6 extends to the feed hopper 3. The chestnuts can be transported and discharged evenly by rotating the spiral conveying blade 6, which has a good effect on the subsequent chestnut screening.

[0023] Two disassembly and assembly mechanisms are provided between the lower box body 1 and the upper box body 2, and the disassembly and assembly mechanisms include a latch 15 that passes through the upper box body 2 and is slidably connected thereto, and a spring 16 is sleeved on the outer wall of the latch 15, and the two ends of the spring 16 are respectively fixedly connected to the upper box body 2 and the latch 15, and a positioning groove 17 is provided on the lower box body 1, and the latch 15 is inserted into the positioning groove 17. The staff holds the two latches 15 and moves them back to back. During this process, the spring 16 is stretched until the two latches 15 are disengaged from the positioning groove 17, and the lower box body 1 can be separated from the upper box body 2, and the interior of the device can be inspected.

[0024] Two screening mechanisms are provided in the lower box body 1, and the screening mechanisms include screening plates 7 rotatably connected to the inner wall of the lower box body 1. The two screening plates 7 are both inclined, and multiple screening openings are penetrated on the two screening plates 7. The diameter of the screening openings of the upper screening plate 7 is larger than that of the lower screening plate 7. A discharge port 8 is opened on the lower box body 1, and the screening plate 7 is arranged through the discharge port 8. A second motor 9 is fixedly connected to the side wall of the lower box body 1, and a transmission rod is fixedly connected to the output end of the second motor 9. The transmission rod penetrates the lower box body 1 and is rotatably connected thereto. A cam 10 is fixedly connected to the end of the transmission rod, and the rotation of the cam 10 drives the screening plate 7 to swing and vibrate to avoid chestnut blockage.

[0025] A discharge hopper 11 fixedly connected to the bottom of the lower box body 1 is penetrated through, and the bottom of the lower box body 1 is truncated cone-shaped. The discharge hopper 11 is installed at the bottom of the lower box body 1. An electric hot air blower 12 is fixedly connected to the bottom of the lower box body 1. The electric hot air blower 12 is fixedly connected to a T-shaped hollow tube 13. The T-shaped hollow tube 13 penetrates the lower box body 1 and is fixedly connected thereto. A plurality of through holes 14 are penetrated through the T-shaped hollow tube 13. The plurality of through holes 14 are evenly spaced. Hot air is discharged through the plurality of through holes 14, so that the chestnuts can be dried and moisture on the chestnuts can be removed, which is beneficial to the long-term storage of the chestnuts.

[0026] In the utility model, the staff starts the first motor 5 and the second motor 9 to place the chestnuts in the feed hopper 3, and the spiral conveying blade 6 is driven to rotate by the output end of the first motor 5. The rotation of the spiral conveying blade 6 can uniformly convey the chestnuts in the feed hopper 3 so that they fall down for uniform material discharge, until the chestnuts fall onto the screening plate 7 on the upper side, and the chestnuts can be screened through the sieve opening on the screening plate 7, and the larger chestnuts can be intercepted, while the medium and small chestnuts continue to fall through the sieve opening, and the medium-sized chestnuts can be intercepted through the screening plate 7 on the lower side, while the small chestnuts continue to fall and are finally discharged through the discharge hopper 11, so that the larger, medium-sized and small chestnuts can be screened, so that the large chestnuts are discharged from the right side, the medium chestnuts are discharged from the left side, and the small chestnuts are discharged and collected through the discharge hopper 11; the transmission rod and the cam 10 are driven to rotate by the output end of the second motor 9, and when the cam 10 rotates one circle, the protruding part of the cam 10 and the screening plate 7 contacts and drives the screening plate 7 to rotate until the cam 10 continues to rotate and separates from the screening plate 7. At this time, the screening plate 7 is reset under the action of gravity and contacts the inner wall of the discharge port 8, causing the screening plate 7 to collide and vibrate. The continuous rotation of the cam 10 causes the screening plate 7 to swing and vibrate continuously, thereby avoiding chestnuts on the screening plate 7 from being blocked, and the inclined setting of the screening plate 7 ensures the normal discharge of chestnuts; the electric hot air blower 12 is started, and a large amount of hot air can be generated by the electric hot air blower 12. The hot air can be discharged through multiple through holes 14 through the T-shaped hollow tube 13, and finally the hot air is discharged through the feed hopper 3. In the process of the hot air moving, the hot air contacts with the chestnuts to dry the chestnuts, and the chestnuts are evenly and fully contacted with the hot air, so that the moisture of the chestnuts is dried and the chestnuts are evenly dried, which is conducive to the long-term storage of the chestnuts; the staff holds the two latches 15 to move them back to back, and the spring 16 is stretched during this process until the two latches 15 are separated from the positioning groove 17, and the lower box body 1 and the upper box body 2 can be separated, and the interior of the device can be inspected.

[0027] The utility model solves the problem that the chestnuts near the steam inlet in the prior art have a good drying effect, while the chestnuts far from the steam inlet have a poor drying effect, resulting in uneven drying of the chestnuts, by providing a T-shaped hollow tube and a plurality of through holes.

Claims

1. A chestnut screening device, comprising a lower box body (1) and an upper box body (2) located above the lower box body (1), characterized in that: The top of the upper box body (2) is penetrated by a feed hopper (3) fixedly connected thereto; the top of the upper box body (2) is fixedly connected to an L-shaped plate (4); the top of the L-shaped plate (4) is fixedly connected to a first motor (5); the output end of the first motor (5) is fixedly connected to a spiral conveying blade (6); the spiral conveying blade (6) penetrates the L-shaped plate (4) and is rotatably connected thereto; the spiral conveying blade (6) extends into the feed hopper (3); the lower box body (1) is connected to the upper box body (2) and is fixedly connected to the first motor (5); Two disassembly and assembly mechanisms are provided between the boxes (2); two screening mechanisms are provided in the lower box (1); a discharge hopper (11) is provided through the bottom of the lower box (1) and is fixedly connected thereto; an electric hot air blower (12) is fixedly connected to the bottom of the lower box (1); the electric hot air blower (12) is fixedly connected to a T-shaped hollow tube (13); the T-shaped hollow tube (13) passes through the lower box (1) and is fixedly connected thereto; and a plurality of through holes (14) are provided through the T-shaped hollow tube (13); The screening mechanism comprises a screening plate (7) rotatably connected to the inner wall of the lower box (1); a discharge port (8) is provided on the lower box (1); the screening plate (7) passes through the discharge port (8); a second motor (9) is fixedly connected to the side wall of the lower box (1); a transmission rod is fixedly connected to the output end of the second motor (9); the transmission rod passes through the lower box (1) and is rotatably connected thereto; and a cam (10) is fixedly connected to the end of the transmission rod.

2. A chestnut screening device according to claim 1, characterized in that: The disassembly and assembly mechanism comprises a latch (15) penetrating the upper box body (2) and slidably connected thereto, a spring (16) being sleeved on the outer wall of the latch (15), two ends of the spring (16) being respectively fixedly connected to the upper box body (2) and the latch (15), and a positioning groove (17) being formed on the lower box body (1), and the latch (15) being inserted into the positioning groove (17).

3. The chestnut screening device according to claim 1, characterized in that: The two screening plates (7) are both arranged at an incline.

4. The chestnut screening device according to claim 1, characterized in that: A plurality of sieve openings are provided through the two screening plates (7), and the diameter of the sieve openings of the upper screening plate (7) is larger than the diameter of the sieve openings of the lower screening plate (7).

5. The chestnut screening device according to claim 1, characterized in that: The bottom of the lower box body (1) is arranged in a truncated cone shape, and the discharge hopper (11) is installed at the bottom of the lower box body (1).

6. The chestnut screening device according to claim 1, characterized in that: The plurality of through holes (14) are distributed at equal intervals.

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