Secondary impurity removal mechanism of chili cleaning and sorting machine

Abstract

The invention relates to the technical field of agricultural machinery, in particular to a secondary impurity removal mechanism of a chili cleaning and sorting machine, which comprises a machine body, an electromagnetic vibrator is arranged on one side of the machine body, a tray is arranged on the upper surface of the machine body, a mounting port is formed in the middle of the tray, a mesh plate is mounted in the mounting port, and a waste collection box is fixedly mounted on one side of the machine body; a sliding groove is formed in the surface of the machine body, a feeding port is formed in the top of the sliding groove, and a collecting box is slidably inserted into the sliding groove. The hot peppers screened by the color sorter are put into the charging tray through the electromagnetic vibrator, then the charging tray vibrates at high frequency to drive the hot peppers on the charging tray to move forwards stably, and in the process that the hot peppers are linearly pushed on the net plate, the hot peppers with high specific gravity fall into the collecting box through the net holes; and malignant non-edible impurities such as tiny thrown materials, hair, tiny cords, extremely small black and white mulching films and the like can jump upwards and be pushed forwards by utilizing tiny vibration of the electromagnetism and enter the waste collecting box, so that the effect of secondary deep impurity removal is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery, and in particular to a secondary impurity removal mechanism of a pepper cleaning machine. Background Art

[0002] Chili is a common vegetable and condiment, belonging to the genus Capsicum in the Solanaceae family. When the peppers are ripe, mechanical picking equipment will be used, which can replace manual picking of peppers to a certain extent and improve the efficiency of pepper picking. It is especially suitable for large-scale pepper cultivation.

[0003] Since a large number of peppers are harvested mechanically, the mulch covering the peppers is easily mixed into the dry peppers, and a part of it will be crushed into the pepper cavity, which cannot be seen or removed by manual labor or color sorting machines. Even after being processed into products, a very small part is detected and found, which has a great impact on consumption and export. Therefore, there is an urgent need for a mechanism that can perform secondary deep impurity removal on the picked peppers. Summary of the invention

[0004] The purpose of the present invention is to solve the following shortcomings in the prior art: since a large number of peppers are harvested mechanically, the mulch covering the peppers is easily mixed into the dry peppers, and a part of it will be crushed into the pepper cavity, which cannot be seen and removed by manual labor or color sorting machines. After being processed into products, a very small part is detected and found, which has a great impact on consumption and export. A secondary impurity removal mechanism of a pepper sorting machine is proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A secondary impurity removal mechanism of a pepper cleaning machine comprises a machine body, an electromagnetic vibrator is arranged on one side of the machine body, a material tray which is electrically connected to the electromagnetic vibrator and can vibrate at a high frequency is arranged on the upper surface of the machine body, a mounting opening is opened in the middle of the material tray, a mesh plate is locked and installed in the mounting opening through a locking assembly, a waste collection box is fixedly installed on the side of the machine body away from the electromagnetic vibrator, a U-shaped plate is fixedly installed on the upper surface of the machine body, the material tray is located in the U-shaped plate, a knocking assembly is arranged on the upper surface of the U-shaped plate, and the knocking assembly is used to intermittently knock the material tray; A slide groove is provided on the surface of the machine body, a feed port corresponding to the installation port position is provided on the top of the slide groove, a collection box is slidably inserted in the slide groove, and a limiting component for limiting the collection box from sliding out of the slide groove is provided on the surface of the machine body.

[0006] Preferably, the locking assembly includes a screw and a retaining ring rotatably sleeved on the screw, a mounting groove is provided on the surface of the material tray, a retaining groove is provided on the surface of the material tray, the mounting groove and the retaining groove form a circular space for the retaining ring to enter, a load-bearing rod is symmetrically fixedly installed on the inner wall of the mounting opening, a threaded groove is provided at the bottom of the mounting groove, and the screw thread is installed in the threaded groove.

[0007] Preferably, a rectangular groove is formed on the groove wall of the installation groove, a first spring rod is fixedly installed in the rectangular groove, an annular limiting opening is formed on the outer ring wall of the support ring, one end of the first spring rod is located in the limiting opening, a receiving groove is formed on the groove wall of the installation groove, a baffle is fixedly installed on the upper surface of one end of the first spring rod through a connecting block, and one end of the baffle is slidably inserted in the receiving groove.

[0008] Preferably, the movement limiting assembly includes two rotating rods rotatably mounted on the surface of the machine body and two movement limiting plates respectively fixedly sleeved on the two rotating rods, and the two rotating rods are controlled to rotate together by the transmission assembly.

[0009] Preferably, the transmission assembly includes two gears fixedly mounted on two rotating rods respectively and a rack rod meshingly connected to the two gears, a placement plate is fixedly mounted on the surface of the body, a second spring rod is fixedly mounted on the surface of the placement plate, and one end of the second spring rod is fixedly connected to one end of the rack rod.

[0010] Preferably, the knocking assembly includes four sliding rods and four knocking balls respectively fixedly mounted on the bottom ends of the multiple sliding rods, a U-shaped mounting plate is fixedly mounted on the upper surface of the U-shaped plate, four circular openings are opened on the upper surface of the mounting plate, the four sliding rods are respectively vertically slidably inserted in the multiple circular openings, an L-shaped plate is fixedly mounted on the top of the sliding rod, a telescopic spring is sleeved on the sliding rod, the two ends of the telescopic spring are respectively fixedly connected to the mounting plate and the L-shaped plate, and the multiple sliding rods are controlled to move upward together by the driving assembly.

[0011] Preferably, the driving assembly includes a driving motor fixedly mounted on the upper surface of a mounting plate, a reciprocating screw fixedly mounted on an output shaft of the driving motor, and a slide plate threadedly sleeved on the reciprocating screw, the front and rear surfaces of the slide plate are fixedly mounted with a third spring rod, one end of the third spring rod is fixedly mounted with a counter plate, the surface of the L-shaped plate is provided with a rotating opening, a rotating shaft is rotatably mounted in the rotating opening, a force-bearing plate is fixedly sleeved on the rotating shaft, one end of the rotating shaft is fixedly mounted with a round block, a torsion spring is sleeved on the rotating shaft, two ends of the torsion spring are respectively fixedly connected to the round block and the L-shaped plate, the force-bearing plate is restricted from rotating upward by a rotation limiting component, the two counter plates respectively correspond to the positions of two pairs of force-bearing plates, a limiting rod is vertically fixedly mounted on the upper surface of the mounting plate, the slide plate is slidably sleeved on the limiting rod, and the two third spring rods are controlled to retract together by the pressing component.

[0012] Preferably, the rotation limiting component includes a rotation limiting rod fixedly mounted on the surface of the force-bearing plate, a limited rotation opening is provided on the side wall of the L-shaped plate with the rotation axis as the center, and the rotation limiting rod is slidably arranged in the rotation limiting opening.

[0013] Preferably, the pressing component includes two vertical plates symmetrically and vertically fixedly mounted on the upper surface of the mounting plate and two inclined plates respectively fixedly mounted on the top of the two vertical plates. A trapezoidal plate is fixedly mounted on the upper surface of the pressing plate, and the inclined surfaces of the two trapezoidal plates are respectively arranged face to face with the inclined surfaces of the two inclined plates.

[0014] Preferably, two spherical grooves are provided on the upper surface of the abutment plate, and rolling balls are embedded in the spherical grooves.

[0015] Compared with the prior art, the present invention has the following beneficial effects: Using an electromagnetic vibrator, the peppers that have been screened by the color sorter are put back onto the tray, and then the tray is vibrated at a high frequency to drive the peppers on the tray to move forward steadily. When the peppers are pushed linearly on the mesh plate, the peppers with high specific gravity will fall through the mesh holes into the collection box, while the tiny parasites, hair, tiny strings, tiny black and white mulch films and other malignant non-edible impurities will jump up and be pushed forward by the tiny vibration of the electromagnetic field and enter the waste collection box, thus achieving the effect of secondary deep impurity removal. The mesh plate can be quickly disassembled and assembled through the locking assembly, making it easy to replace the mesh plate with mesh holes that match the size of the peppers to be removed, thereby improving the efficiency of replacing the mesh plate; As the peppers move forward on the tray, multiple knocking balls in the knocking assembly will intermittently knock against the upper surface of the mesh plate under the cooperation of the driving assembly, the rotation limiting component and the pressing component, thereby preventing some mesh holes from being blocked by the peppers. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front perspective structural diagram of a secondary impurity removal mechanism of a pepper cleaning machine proposed by the present invention; Figure 2 This is a side perspective structural diagram of a secondary impurity removal mechanism of a pepper cleaning machine proposed by the present invention; Figure 3 A partial three-dimensional structural schematic diagram of a secondary impurity removal mechanism of a pepper cleaning machine proposed by the present invention; Figure 4 It is a partial three-dimensional structural schematic diagram of a mounting plate in a secondary impurity removal mechanism of a pepper cleaning machine proposed by the present invention; Figure 5 It is a partial three-dimensional structural schematic diagram of a driving component in a secondary impurity removal mechanism of a pepper cleaning machine proposed by the present invention; Figure 6It is a partial three-dimensional structural schematic diagram of a slide bar in a secondary impurity removal mechanism of a pepper cleaning machine proposed by the present invention; Figure 7 A schematic diagram of a partial three-dimensional structure of the feed tray in the secondary impurity removal mechanism of a pepper cleaning machine proposed by the present invention Figure 8 This is a schematic diagram of the three-dimensional structure of the mesh plate in the secondary impurity removal mechanism of a pepper cleaning machine proposed by the present invention; Fig. 9 It is a partial three-dimensional structural schematic diagram of a locking component in a secondary impurity removal mechanism of a pepper cleaning machine proposed by the present invention; Fig.10 for Figure 1 The enlarged structural diagram at A in the middle; Fig.11 for Figure 4 The enlarged structural diagram at B in the middle; Fig.12 for Figure 5 The enlarged structural diagram at C in the middle; Fig.13 for Figure 6 The enlarged structural diagram at D in the middle; Fig.14 for Figure 7 Enlarged structural diagram at E in the middle.

[0017] In the figure: 1 body, 2 electromagnetic vibrator, 3 material tray, 4 mounting port, 5 mesh plate, 6 waste collection box, 7 slide, 8 collection box, 9 screw, 10 ring, 11 mounting slot, 12 groove, 13 ball, 14 load-bearing rod, 15 threaded groove, 16 rectangular groove, 17 first spring rod, 18 limiting port, 19 storage slot, 20 baffle, 21 U-type plate, 22 rotating rod, 23 limited shift plate, 24 gear, 25 rack rod, 26 second spring rod, 27 slide, 28 knock ball, 29 mounting plate, 30 L-type plate, 31 telescopic spring, 32 driving motor, 33 reciprocating screw rod, 34 slide plate, 35 third spring rod, 36 rotating shaft, 37 force plate, 38 torsion spring, 39 limiting rod, 40 limited rotation rod, 41 plate, 42 limited rotation port, 43 inclined plate, 44 trapezoidal plate. DETAILED DESCRIPTION

[0018] 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 the embodiments.

[0019] Reference Figure 1-Figure 14A secondary impurity removal mechanism of a pepper cleaning machine includes a body 1, an electromagnetic vibrator 2 is provided on one side of the body 1, a material tray 3 which is electrically connected to the electromagnetic vibrator 2 and can vibrate at a high frequency is provided on the upper surface of the body 1, a mounting opening 4 is opened in the middle of the material tray 3, a mesh plate 5 is locked and installed in the mounting opening 4 through a locking assembly, a waste collection box 6 is fixedly installed on the side of the body 1 away from the electromagnetic vibrator 2, a U-shaped plate 21 is fixedly installed on the upper surface of the body 1, the material tray 3 is located in the U-shaped plate 21, and a knocking assembly is provided on the upper surface of the U-shaped plate 21, and the knocking assembly is used to intermittently knock the material tray 3.

[0020] A slide groove 7 is provided on the surface of the machine body 1 , a feed port corresponding to the position of the installation port 4 is provided on the top of the slide groove 7 , and a collection box 8 is slidably inserted into the slide groove 7 .

[0021] First, the peppers that have been screened by the color sorter are put into the feed tray 3, and then the electromagnetic vibrator 2 is started to control the feed tray 3 to vibrate at high frequency, so as to drive the peppers on the feed tray 3 to move forward smoothly. When the peppers are pushed linearly on the mesh plate 5, the peppers with high specific gravity will fall through the multiple mesh holes on the surface of the mesh plate 5 and enter the collection box 8. However, disgusting inedible impurities such as tiny parabolic materials, hair, tiny strings and extremely small black and white mulch films have different physical properties from the peppers, such as particle size, shape and weight. When the feed tray 3 vibrates, their movement trajectories and speeds will be different. The peppers usually have larger particles and heavier weight. Under the action of vibration, they will move forward along the feed tray 3 in a relatively stable manner, and will eventually fall from the multiple mesh holes of the mesh plate 5. However, the mulch film fragments are very thin and light in weight. The hair is relatively thin and may be separated from the peppers under the collision of the pepper particles and the action of the vibrating airflow, and float or adhere to other positions on the surface of the material tray 3. The peppers will form a certain material layer thickness in the material tray 3. During the vibration process, the peppers will squeeze and collide with each other, which will help to peel off the ground film, hair, rope or paraffin materials adhering to the surface of the peppers. At the same time, due to the irregular shapes of these impurities, their fluidity in the pepper material layer is different from that of the peppers. For example, the ground film may form an obstruction on the surface of the material layer, affecting the normal flow of the peppers, and this obstruction will cause the ground film to separate from the peppers during the vibration process, and will use the tiny electromagnetic vibration to jump up and push forward, and enter the waste collection box 6, so as to achieve the effect of secondary deep impurity removal.

[0022] The surface of the body 1 is provided with a limiting movement assembly for limiting the collection box 8 from sliding out of the slide groove 7. The limiting movement assembly includes two rotating rods 22 rotatably installed on the surface of the body 1 and two limiting movement plates 23 respectively fixedly sleeved on the two rotating rods 22. The two rotating rods 22 are controlled to rotate together through a transmission assembly. The transmission assembly includes two gears 24 respectively fixedly sleeved on the two rotating rods 22 and a rack rod 25 meshingly connected to the two gears 24. A placement plate is fixedly installed on the surface of the body 1, and a second spring rod 26 is fixedly installed on the surface of the placement plate. One end of the second spring rod 26 is fixedly connected to one end of the rack rod 25.

[0023] When the collecting box 8 is in the slide slot 7, the two limiting plates 23 will be in a vertical state, and the surfaces of the limiting plates 23 will abut against the surfaces of the collecting box 8. The collecting box 8 is blocked by the two limiting plates 23 and cannot slide out of the slide slot 7. When the collecting box 8 needs to be pulled out of the slide slot 7, just control the rack rod 25 to rotate to shrink the second spring rod 26, and the two gears 24 meshing with the rack rod 25 will respectively drive the two rotating rods 22 to rotate together until the two limiting plates 23 are rotated to a horizontal state, that is, they no longer abut against the surfaces of the collecting box 8, and the restriction on the collecting box 8 can be released, and then the collecting box 8 can be pulled out of the slide slot 7. The limiting plates 23 can limit the collection box 8 to move in the slide slot 7 under the influence of the vibration force when the machine body 1 is working, so that the peppers falling from the mesh cannot enter the collecting box 8.

[0024] The locking assembly includes a screw 9 and a retaining ring 10 rotatably sleeved on the screw 9. A mounting groove 11 is provided on the surface of the material tray 3. A retaining groove 12 is provided on the surface of the material tray 3. The mounting groove 11 and the retaining groove 12 form a circular space for the retaining ring 10 to enter. A load-bearing rod 14 is symmetrically fixedly installed on the inner wall of the mounting opening 4. A threaded groove 15 is provided at the bottom of the mounting groove 11, and the screw 9 is threadedly installed in the threaded groove 15.

[0025] When the mesh panel 5 needs to be installed, first place the mesh panel 5 in the installation opening 4. At this time, the lower surface of the mesh panel 5 will abut against the upper surfaces of the two load-bearing rods 14. Then, add a screw 9 and thread it in the threaded groove 15 until the retaining ring 10 sleeved on the screw 9 is rotated to enter the circular space formed by the installation groove 11 and the retaining groove 12, and the mesh panel 5 can be locked after the lower surface tightly abuts against the bottom of the installation groove 11 and the retaining groove 12.

[0026] When the mesh plate 5 needs to be disassembled, just rotate the screw 9 to move the retaining ring 10 out of the circular space and the screw 9 out of the threaded groove 15. This is quick and convenient, and it is easy to replace the mesh plate 5 with a mesh size that matches the size of the peppers to be removed, thereby improving the work efficiency of replacing the mesh plate 5.

[0027] A rectangular groove 16 is formed on the groove wall of the installation groove 11, and a first spring rod 17 is fixedly installed in the rectangular groove 16. An annular limiting opening 18 is formed on the outer ring wall of the butt ring 10, and one end of the first spring rod 17 is located in the limiting opening 18. A receiving groove 19 is formed on the groove wall of the installation groove 11, and a baffle 20 is fixedly installed on the upper surface of one end of the first spring rod 17 through a connecting block, and one end of the baffle 20 is slidably inserted in the receiving groove 19.

[0028] When it is necessary to install the mesh plate 5, the mesh plate 5 is placed in the installation opening 4. At this time, the movement of the baffle plate 20 is controlled to move the baffle plate 20 toward the storage groove 19, and the first spring rod 17 contracts until the end of the first spring rod 17 is moved out of the installation groove 11, and then the screw 9 is threadedly installed in the threaded groove 15 until the surface of the retaining ring 10 is tightly against the bottom of the installation groove 11 and the retaining groove 12. At this time, the limiting opening 18 will correspond to the position of one end of the first spring rod 17, and then the baffle plate 20 is released, the first spring rod 17 will quickly stretch and recover, and one end of it will be inserted into the limiting opening 18, thereby limiting the vertical movement of the retaining ring 10. Since the retaining ring 10 must move vertically when the screw 9 is rotating, it can also limit the rotation of the screw 9 in a phased manner, thereby preventing the screw 9 from rotating due to the influence of the vibration force, resulting in loosening of the locking of the mesh plate 5.

[0029] The baffle 20 can cover the opening of the rectangular groove 16 to prevent peppers from entering the rectangular groove 16 .

[0030] The knocking assembly includes four slide bars 27 and four knocking balls 28 respectively fixedly mounted on the bottom ends of the multiple slide bars 27. A U-shaped mounting plate 29 is fixedly mounted on the upper surface of the U-shaped plate 21. The upper surface of the mounting plate 29 is provided with four round openings. The four slide bars 27 are respectively vertically slidably inserted into the multiple round openings. An L-shaped plate 30 is fixedly mounted on the top of the slide bar 27. A telescopic spring 31 is sleeved on the slide bar 27. The two ends of the telescopic spring 31 are respectively fixedly connected to the mounting plate 29 and the L-shaped plate 30. The multiple slide bars 2 7 is controlled by a driving assembly to move upward together, the driving assembly includes a driving motor 32 fixedly mounted on the upper surface of the mounting plate 29, a reciprocating screw rod 33 fixedly mounted on the output shaft of the driving motor 32, and a slide plate 34 threadedly sleeved on the reciprocating screw rod 33, the front and rear surfaces of the slide plate 34 are fixedly mounted with a third spring rod 35, one end of the third spring rod 35 is fixedly mounted with a stop plate 41, a rotating opening is opened on the surface of the L-shaped plate 30, a rotating shaft 36 is rotatably mounted in the rotating opening, and a fixed sleeve is mounted on the rotating shaft 36 A force-bearing plate 37 is connected, a round block is fixedly installed at one end of the rotating shaft 36, a torsion spring 38 is sleeved on the rotating shaft 36, and the two ends of the torsion spring 38 are respectively fixedly connected to the round block and the L-shaped plate 30. The force-bearing plate 37 is limited to rotate upward by a rotation-limiting component. The rotation-limiting component includes a rotation-limiting rod 40 fixedly installed on the surface of the force-bearing plate 37. The side wall of the L-shaped plate 30 is provided with a limited rotation opening 42 with the rotating shaft 36 as the center. The rotation-limiting rod 40 is slidably arranged in the rotation-limiting opening 42. The two abutment plates 41 are respectively connected to the two pairs of force-bearing plates 37. Corresponding to the position, a limiting rod 39 is vertically fixedly installed on the upper surface of the mounting plate 29, and the slide plate 34 is slidably sleeved on the limiting rod 39. The two third spring rods 35 are controlled to shrink together by the pressing component. The pressing component includes two vertical plates symmetrically fixedly installed on the upper surface of the mounting plate 29 and two inclined plates 43 respectively fixedly installed on the top of the two vertical plates. A trapezoidal plate 44 is fixedly installed on the upper surface of the pressing plate 41, and the inclined surfaces of the two trapezoidal plates 44 are respectively arranged face to face with the inclined surfaces of the two inclined plates 43.

[0031] In the initial state, the force-bearing plate 37 will be in a horizontal state under the elastic potential energy of the torsion spring 38. When the pepper moves forward on the material tray 3, the drive motor 32 is started to control the reciprocating screw 33 to rotate. At this time, the slide plate 34 threadedly sleeved on the reciprocating screw 33 will carry the two third spring rods 35 and the two abutment plates 41 to perform vertical reciprocating movement. When the abutment plates 41 move upward, they will abut against the lower surfaces of the two force-bearing plates 37 located above them. Because the force-bearing plate 37 is restricted by the rotation limit port 42 and the rotation limit rod 40, the end of the force-bearing plate 37 away from the rotating shaft 36 cannot rotate upward, so that the force-bearing plate 37 is The upward pressing force of the push plate 41 will move the L-shaped plate 30, the slide bar 27 and the knocking ball 28 upward, and the telescopic spring 31 will gradually stretch. As the push plate 41 moves upward, the two trapezoidal plates 44 will gradually approach the two inclined plates 43. When the inclined surface of the trapezoidal plate 44 slides in contact with the inclined surface of the inclined plate 43, as the push plate 41 moves upward, under the action of the inclined surface pressing, the two third spring rods 35 will shrink together, and the two push plates 41 will also move horizontally closer to each other during the upward movement, until the push plate 41 moves to the point where the upper surface no longer contacts the lower surface of the force-bearing plate 37. When the pressing force of the force-bearing plate 37 disappears, the force-bearing plate 37, the L-shaped plate 30, the sliding rod 27 and the knocking ball 28 will quickly move down and reset under the elastic potential energy of the telescopic spring 31, and the knocking ball 28 will collide with the mesh plate 5. Then, when the push plate 41 moves down, the two third spring rods 35 will gradually stretch and recover, and the lower surface of the push plate 41 will resist the upper surface of the force-bearing plate 37. The force-bearing plate 37 will rotate downward under the downward pressing force of the push plate 41 until the push plate 41 moves down to the bottom, and the force-bearing plate 37 no longer resists the push plate 41. The force-bearing plate 37 will quickly rotate and recover to the bottom under the elastic potential energy of the torsion spring 38. In a horizontal state, that is, with the rotation of the reciprocating screw 33, multiple knocking balls 28 will intermittently collide with the mesh plate 5. The intermittent knocking of the mesh plate 5 will cause the mesh plate 5 to vibrate, and the vibration energy will be transmitted to the impurities blocking the mesh holes. For some loosely accumulated impurities, the vibration will destroy the interaction force between them, making the arrangement between the impurity particles loose. The particles originally blocked in the mesh holes may fall or change their position due to the vibration, thereby reopening the mesh holes. At the same time, intermittent knocking can break up the impurities in time before they are completely compacted and solidified, which can effectively prevent the mesh holes of the mesh plate 5 from being blocked.

[0032] Two spherical grooves are formed on the upper surface of the abutment plate 41 , and rolling balls 13 are rotatably embedded in the spherical grooves. The rolling balls 13 can reduce the friction between the contact surface between the upper surface of the abutment plate 41 and the lower surface of the force-bearing plate 37 .

[0033] In the present invention, firstly, the peppers screened by the color sorter are put into the feed tray 3, and then the electromagnetic vibrator 2 is started to control the feed tray 3 to vibrate at high frequency, so as to drive the peppers on the feed tray 3 to move forward steadily. When the peppers are pushed linearly on the mesh plate 5, the peppers with high specific gravity will fall through the multiple mesh holes on the surface of the mesh plate 5 and enter the collection box 8. However, disgusting non-edible impurities such as tiny parabolic materials, hair, tiny strings and extremely small black and white mulch films have different physical properties from the peppers, such as particle size, shape and weight. When the feed tray 3 vibrates, their movement trajectories and speeds will be different. The peppers usually have larger particles and heavier weight. Under the action of vibration, they will move forward in a relatively stable manner along the feed tray 3, and will eventually fall from the multiple mesh holes of the mesh plate 5. However, the mulch film fragments are very thin and light in weight. During the vibration process, it is easier to be thrown up or move to the edge of the material tray 3. The hair is relatively thin and may be separated from the peppers under the collision of the pepper particles and the action of the vibrating airflow, floating or attached to other positions on the surface of the material tray 3. The peppers will form a certain material layer thickness in the material tray 3. During the vibration process, the peppers will squeeze and collide with each other, which will help to peel off the ground film, hair, rope or paraffin materials adhering to the surface of the peppers. At the same time, due to the irregular shapes of these impurities, their fluidity in the pepper material layer is different from that of the peppers. For example, the ground film may form an obstruction on the surface of the material layer, affecting the normal flow of the peppers, and this obstruction will cause the ground film to separate from the peppers during the vibration process, and will use the tiny electromagnetic vibration to jump up and push forward, and enter the waste collection box 6, so as to achieve the effect of secondary deep impurity removal.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A secondary impurity removal mechanism of a pepper cleaning machine, comprising a machine body (1), characterized in that: An electromagnetic vibrator (2) is provided on one side of the machine body (1); a material tray (3) electrically connected to the electromagnetic vibrator (2) and capable of high-frequency vibration is provided on the upper surface of the machine body (1); a mounting opening (4) is provided in the middle of the material tray (3); a mesh plate (5) is locked and installed in the mounting opening (4) by means of a locking assembly; a waste collection box (6) is fixedly installed on a side of the machine body (1) away from the electromagnetic vibrator (2); a U-shaped plate (21) is fixedly installed on the upper surface of the machine body (1); the material tray (3) is located in the U-shaped plate (21); a knocking assembly is provided on the upper surface of the U-shaped plate (21); the knocking assembly is used to intermittently knock the material tray (3); A slide groove (7) is provided on the surface of the machine body (1), a feed port corresponding to the position of the installation port (4) is provided on the top of the slide groove (7), a collection box (8) is slidably inserted into the slide groove (7), and a limiting component for limiting the collection box (8) from sliding out of the slide groove (7) is provided on the surface of the machine body (1).

2. The secondary impurity removal mechanism of the pepper cleaning machine according to claim 1 is characterized in that: The locking assembly comprises a screw (9) and a retaining ring (10) rotatably sleeved on the screw (9); a mounting groove (11) is provided on the surface of the material tray (3); a retaining groove (12) is provided on the surface of the material tray (3); the mounting groove (11) and the retaining groove (12) form a circular space for the retaining ring (10) to enter; a load-bearing rod (14) is symmetrically fixedly mounted on the inner wall of the mounting opening (4); a threaded groove (15) is provided on the bottom of the mounting groove (11); and the screw (9) is threadably mounted in the threaded groove (15).

3. The secondary impurity removal mechanism of the pepper cleaning machine according to claim 2 is characterized in that: The groove wall of the installation groove (11) is provided with a rectangular groove (16), a first spring rod (17) is fixedly installed in the rectangular groove (16), an outer ring wall of the retaining ring (10) is provided with an annular limiting opening (18), one end of the first spring rod (17) is located in the limiting opening (18), the groove wall of the installation groove (11) is provided with a receiving groove (19), a baffle (20) is fixedly installed on the upper surface of one end of the first spring rod (17) via a connecting block, and one end of the baffle (20) is slidably inserted in the receiving groove (19).

4. The secondary impurity removal mechanism of the pepper cleaning machine according to claim 1 is characterized in that: The displacement limiting assembly comprises two rotating rods (22) rotatably mounted on the surface of the machine body (1) and two displacement limiting plates (23) respectively fixedly sleeved on the two rotating rods (22); the two rotating rods (22) are controlled to rotate together by the transmission assembly.

5. The secondary impurity removal mechanism of the pepper cleaning machine according to claim 4 is characterized in that: The transmission assembly comprises two gears (24) respectively fixedly sleeved on two rotating rods (22) and a rack rod (25) meshingly connected to the two gears (24); a placement plate is fixedly mounted on the surface of the body (1); a second spring rod (26) is fixedly mounted on the surface of the placement plate; one end of the second spring rod (26) is fixedly connected to one end of the rack rod (25).

6. The secondary impurity removal mechanism of the pepper cleaning machine according to claim 1 is characterized in that: The knocking assembly comprises four sliding rods (27) and four knocking balls (28) respectively fixedly mounted on the bottom ends of the plurality of sliding rods (27); a U-shaped mounting plate (29) is fixedly mounted on the upper surface of the U-shaped plate (21); four circular openings are opened on the upper surface of the mounting plate (29); the four sliding rods (27) are respectively vertically slidably inserted into the plurality of circular openings; an L-shaped plate (30) is fixedly mounted on the top end of the sliding rod (27); a telescopic spring (31) is sleeved on the sliding rod (27); the two ends of the telescopic spring (31) are respectively fixedly connected to the mounting plate (29) and the L-shaped plate (30); and the plurality of sliding rods (27) are controlled to move upward together by the driving assembly.

7. The secondary impurity removal mechanism of the pepper cleaning machine according to claim 6 is characterized in that: The driving assembly comprises a driving motor (32) fixedly mounted on the upper surface of the mounting plate (29), a reciprocating screw rod (33) fixedly mounted on the output shaft of the driving motor (32), and a slide plate (34) threadedly sleeved on the reciprocating screw rod (33), a third spring rod (35) fixedly mounted on the front and rear surfaces of the slide plate (34), a stop plate (41) fixedly mounted on one end of the third spring rod (35), a rotating opening formed on the surface of the L-shaped plate (30), a rotating shaft (36) rotatably mounted in the rotating opening, and a force-bearing plate (37) fixedly sleeved on the rotating shaft (36) A round block is fixedly mounted on one end of the rotating shaft (36), a torsion spring (38) is sleeved on the rotating shaft (36), two ends of the torsion spring (38) are respectively fixedly connected to the round block and the L-shaped plate (30), the force-bearing plate (37) is restricted from rotating upward by a rotation-limiting component, the two abutting plates (41) respectively correspond to the positions of the two pairs of force-bearing plates (37), a restriction rod (39) is vertically fixedly mounted on the upper surface of the mounting plate (29), the slide plate (34) is slidably sleeved on the restriction rod (39), and the two third spring rods (35) are controlled to retract together by the abutting component.

8. The secondary impurity removal mechanism of the pepper cleaning machine according to claim 7 is characterized in that: The rotation limiting component comprises a rotation limiting rod (40) fixedly mounted on the surface of the force bearing plate (37); a rotation limiting opening (42) is provided on the side wall of the L-shaped plate (30) with the rotation axis (36) as the center; and the rotation limiting rod (40) is slidably disposed in the rotation limiting opening (42).

9. The secondary impurity removal mechanism of the pepper cleaning machine according to claim 7, characterized in that: The pressing component comprises two vertical plates symmetrically fixedly mounted on the upper surface of the mounting plate (29) and two inclined plates (43) respectively fixedly mounted on the top ends of the two vertical plates. A trapezoidal plate (44) is fixedly mounted on the upper surface of the pressing plate (41). The inclined surfaces of the two trapezoidal plates (44) are respectively arranged face to face with the inclined surfaces of the two inclined plates (43).

10. The secondary impurity removal mechanism of the pepper cleaning machine according to claim 7, characterized in that: The upper surface of the abutment plate (41) is provided with two spherical grooves, and rolling balls (13) are rotatably embedded in the spherical grooves.

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