Screening assembly for capsicum frutescence

Abstract

The utility model discloses a screening assembly for pepper fruit stripping, which relates to the technical field of pepper processing and comprises a screening box mounted on a pepper picking machine, a feeding hopper is arranged at the upper end of the screening box, and a narrow and long discharging channel communicated with the screening box is formed on the lower portion of the feeding hopper. Through the arrangement of the feeding hopper, the air distribution box, the collecting bin, the driving cam and the cleaning mechanism, the effect of distinguishing and screening crushed pepper branches and pepper leaves is achieved, the phenomenon that the crushed pepper branches and the pepper leaves are wrapped with each other is avoided, and the pepper leaves can be separated from the crushed pepper branches and the pepper leaves. The chilli branches are broken, and the chilli leaves are difficult to screen, so that the net product rate after screening is improved; meanwhile, crushed pepper branches or pepper fruits blocked in grid holes of the vibrating grid plate screen can be cleaned and screened again, it is guaranteed that the vibrating grid plate screen can conduct effective screening operation all the time in the screening process, and the screening efficiency is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of pepper processing, in particular to a screening component for pepper threshing. Background Art

[0002] With the continuous development of agricultural machinery, in the process of picking peppers, a picking machine that can automatically pick peppers has gradually emerged. The picking machine also directly cuts off the branches and leaves of the peppers when working and obtains the pepper fruits after processes such as large branch crushing, screening, and impurity removal inside the picking machine. Among them, the screening component is an important component for separating the pepper fruits from the branches and leaves, and its importance is self-evident.

[0003] After searching, a patent document with the announcement number "CN208338318U" discloses a pepper picking and screening machine. The cross-section of the thin rod of the separation screen is triangular, and one edge of the triangular thin rod faces the cylindrical screen axis. The thin rod is provided with a rod rotation shaft, and the rod rotation shaft is provided with a torsion spring and a drive ring, which drives the rod rotation shaft to rotate.

[0004] Based on the above search and in combination with the prior art, it is found that the existing screening components (or screening machines) for pepper defruiting mostly adopt a screening method of screening branches and leaves at the same time. This screening method allows the pepper fruits and branches and leaves to be screened at the same time. However, due to the different characteristics of the branches and leaves, if there is a phenomenon of entrainment between the two (the pepper leaves wrap around the crushed pepper branches), it is easy to cause the screening to be incomplete. In addition, when screening the branches and leaves at the same time, it is easy to cause the screen to be clumped and blocked, which is not conducive to the smooth screening. Therefore, a screening component for pepper defruiting is needed. Utility Model Content

[0005] The purpose of this application is to provide a screening assembly for pepper threshing to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a screening assembly for pepper threshing, comprising a screening box mounted on a pepper picking machine, a feed hopper being provided at the upper end of the screening box, and a narrow and long feeding channel being formed at the lower portion of the feed hopper and communicating with the screening box;

[0007] The feeding channel of the feed hopper is provided with through holes running horizontally through the left and right sides of the feed hopper. The outer cover of one side of the through hole is connected to the collection bin, and the outer cover of the other side of the through hole is provided with a wind box. The wind box is connected to an air pump through a pipeline. The wind box is used to evenly deliver air to one side of the collection bin to blow away the pepper leaves.

[0008] A vibrating grid screen that can vibrate up and down is installed obliquely in the screening box, and a vibration motor that drives the vibrating grid screen to vibrate is provided at the lower end of the vibrating grid screen;

[0009] A cleaning mechanism is also elastically installed in the screening box. The cleaning mechanism is located at the lower end of the vibrating grid screen and is adapted to the grid holes of the screening box.

[0010] A driving motor is fixed to the front side wall of the screening box, and the output shaft end of the driving motor movably passes through the side wall of the screening box and extends into the screening box. A driving cam is fixed to the output shaft end of the driving motor, and the other end of the driving cam is rotatably connected to the lower end of the cleaning mechanism through a rotating shaft;

[0011] When the driving cam rotates, the cleaning mechanism is driven to extend into the grid holes of the vibrating grid screen and move obliquely from bottom to top along the vibrating grid screen, and then the cleaning mechanism descends and separates from the vibrating grid screen.

[0012] As a further complement to this program, cleanup agencies include:

[0013] A mounting frame, the lower end of which is elastically connected to the inner wall of the screening box via an elastic member;

[0014] A cleaning plate, the lower end of which is fixed to the mounting frame, and the cleaning plate is provided with a plurality of plates corresponding to the plurality of grid holes of the vibrating grid screen;

[0015] The connecting block is fixed to the lower end of the mounting frame, and an axis hole connected to the driving cam is opened on the connecting block.

[0016] As a further supplement to this solution, an inclined top wall is formed at the intersection of the side of the collecting bin away from the feed hopper and the upper wall of the collecting bin, and an air outlet is opened on the inclined top wall for air discharge;

[0017] An inclined bottom wall is formed between the bottom wall of the collecting bin adjacent to the feed hopper and the side wall of the collecting bin close to the screening box. The end of the inclined bottom wall away from the feed hopper is inclined downward.

[0018] As a further supplement to this solution, an inclined guide plate is fixed to the inner side of the collection bin, the upper end of the guide plate is fixed to the lower end of the inclined top wall, and the lower end of the guide plate is inclined toward the side close to the screening box;

[0019] A cleaning port is provided on one side of the collecting bin, and a bin door for closing the cleaning port is hingedly connected to an outer side wall of the collecting bin.

[0020] As a further supplement to this solution, the air distribution box is a box body with one side open and extending horizontally. An air outlet grid plate is fixed on the side of the air distribution box close to the feed hopper, and a plurality of evenly distributed air outlet grid holes are provided on the air outlet grid plate;

[0021] A guide block is fixed in the air distribution box, and the upper and lower ends of the guide block are respectively fixed to the inner top wall and the inner bottom wall of the air distribution box. The guide block forms an arc-shaped side wall toward the side where the air distribution box is connected to the air pump, and the middle part of the arc-shaped side wall protrudes toward the air pump side.

[0022] Among them, the guide block is provided with a plurality of vertically arranged air distribution holes.

[0023] As a further supplement to this solution, a vertical partition is fixed inside the screening box, the partition is located at the end of the vibrating grating screen away from the inner wall of the screening box, and the partition divides the lower part of the screening box into two separate chambers;

[0024] A feeding port is provided on one side of the screening box, which corresponds to a chamber in the screening box for storing pepper fruits. A feeding door for closing the feeding port is hinged on the outside of the screening box.

[0025] In summary, the technical effects and advantages of the utility model are:

[0026] 1. In the utility model, the setting of the feed hopper, the air box, the collecting bin, the driving cam and the cleaning mechanism is realized to achieve the effect of distinguishing and screening the pepper branch fragments and the pepper leaves, avoiding the phenomenon that the pepper branch fragments and the pepper leaves are entangled with each other, which makes it difficult to screen out the pepper branch fragments and the pepper leaves, thereby improving the net product rate after screening; at the same time, when the driving cam rotates, the cleaning mechanism is driven to extend into the grid holes of the vibrating grating screen and move obliquely from bottom to top along the vibrating grating screen, and then the cleaning mechanism descends and separates from the vibrating grating screen, so that the pepper branch fragments or pepper fruits blocked in the grid holes of the vibrating grating screen can be cleaned and screened again, ensuring that the vibrating grating screen can always perform effective screening operations during the screening process, thereby ensuring screening efficiency.

[0027] 2. In the utility model, through the setting of the inclined top wall, when the pepper leaves enter the collecting bin with the airflow, the pepper leaves gradually fall in the collecting bin. Some pepper leaves first fall on the inclined bottom wall, and slide down to the bottom of the collecting bin under the action of the airflow and their own inertia and accumulate; the other pepper leaves that move synchronously with the airflow are eventually blocked by the inclined top wall, thereby stopping moving and falling. The fallen pepper leaves are also accumulated at the bottom of the collecting bin, and the air is discharged from the air outlet to ensure smooth airflow. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] 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 or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 Schematic diagram of the three-dimensional structure in this embodiment;

[0030] Figure 2 Schematic diagram of the cross-sectional structure of the screening box and the collecting bin in this embodiment;

[0031] Figure 3 2 is a top cross-sectional view of the air distribution box in this embodiment;

[0032] Figure 4 Schematic diagram of the structure of the vibrating grating screen and cleaning mechanism in this embodiment.

[0033] In the figure: 1. screening box; 11. feed hopper; 12. material taking door; 13. partition; 2. collecting bin; 21. bin door; 22. inclined top wall; 221. air outlet; 23. guide plate; 24. inclined bottom wall; 3. air distribution box; 31. air outlet grid plate; 32. guide block; 321. air distribution hole; 4. vibrating grid screen; 5. cleaning mechanism; 51. mounting frame; 52. cleaning plate; 53. connecting block; 6. driving motor; 7. air pump; 8. driving cam. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] Example: Reference Figure 1-Figure 4 The screen assembly shown is for threshing peppers, comprising a screening box 1 mounted on a pepper picking machine, a feed hopper 11 being provided at the upper end of the screening box 1, and a narrow and long feeding channel being formed at the lower portion of the feed hopper 11 and communicating with the screening box 1;

[0036] The feeding channel of the feed hopper 11 is provided with through holes running horizontally through the left and right sides of the feed hopper 11, wherein the outer cover of the through hole on one side is connected to the collecting bin 2, and the outer cover of the through hole on the other side is provided with a wind box 3, which is connected to the air pump 7 through a pipeline. The wind box 3 is used to evenly deliver air to one side of the collecting bin 2 to blow away the pepper leaves;

[0037] A vibrating grid screen 4 that can vibrate up and down is installed obliquely in the screening box 1. A vibration motor (not shown in the figure) that drives the vibrating grid screen 4 to vibrate is provided at the lower end of the vibrating grid screen 4.

[0038] A cleaning mechanism 5 is also elastically installed in the screening box 1. The cleaning mechanism 5 is located at the lower end of the vibrating grid screen 4 and is adapted to the grid holes of the screening box 1.

[0039] A driving motor 6 is fixed to the front side wall of the screening box 1. The output shaft end of the driving motor 6 movably passes through the side wall of the screening box 1 and extends into the screening box 1. A driving cam 8 is fixed to the output shaft end of the driving motor 6. The other end of the driving cam 8 is rotatably connected to the lower end of the cleaning mechanism 5 through a rotating shaft.

[0040] Based on the above structure, during screening, the mixture of pepper branch pieces (segmented or granular pepper branches), pepper fruits and pepper leaves after the large branches are broken is first poured into the feed hopper 11. The mixture passes through the narrow and long discharge channel at the bottom of the feed hopper 11 during the descent, thereby forming a distribution state with a thinner vertical thickness. At this time, the air pump 7 blows a uniform airflow to one side of the collecting bin 2 through the air distribution box 3. The airflow needs to be able to blow away the pepper leaves, and the pepper branch pieces and pepper fruits continue to fall due to their heavy weight. The pepper leaves are driven into the collecting bin 2 and collected, and the fallen pepper branch pieces and pepper fruits fall on the vibrating grating screen 4 and are screened by the vibrating grating screen 4, so that the pepper branches are The crushed peppers are separated from the pepper fruits, thereby achieving the effect of distinguishing and screening the pepper branch crushed pieces and pepper leaves, avoiding the phenomenon that the pepper branch crushed pieces and pepper leaves are entangled with each other, making it difficult to screen out the pepper branch crushed pieces and pepper leaves, thereby improving the net product rate after screening; at the same time, when the driving cam 8 rotates, the cleaning mechanism 5 is driven to extend into the grid holes of the vibrating grating screen 4 and move along the vibrating grating screen 4 from bottom to top, and then the cleaning mechanism 5 descends and separates from the vibrating grating screen 4, so that the pepper branch crushed pieces or pepper fruits blocked in the grid holes of the vibrating grating screen 4 can be cleaned and screened again, ensuring that the vibrating grating screen 4 can always perform effective screening operations during the screening process, thereby ensuring the screening efficiency.

[0041] Among them, a vertically arranged partition 13 is fixed on the inside of the screening box 1, and the partition 13 is located at the end of the vibrating grating screen 4 away from the inner wall of the screening box 1. The partition 13 divides the lower part of the screening box 1 into two separated chambers, one of which is used to store the screened pepper branches, and the other chamber is used to store the screened pepper fruits; a feeding port is provided on one side of the screening box 1, and the feeding port corresponds to the chamber for storing pepper fruits in the screening box 1, and a feeding door 12 for closing the feeding port is hinged on the outside of the screening box 1.

[0042] It should be noted that in order to make the falling mixture form a sufficiently thin spread layer, the top of the narrow and long discharge channel of the feed hopper 11 is provided with a material guide portion with a protruding side wall on one side, so that the mixture forms a sufficiently thin spread layer to meet the requirement of completely blowing off the pepper leaves.

[0043] Furthermore, the cleaning mechanism 5 includes:

[0044] A mounting frame 51, the lower end of which is elastically connected to the inner wall of the screening box 1 through an elastic member;

[0045] A cleaning plate 52, the lower end of which is fixed to the mounting frame 51, and the cleaning plate 52 is provided with a plurality of grid holes that respectively correspond to the plurality of grid holes of the vibrating grid screen 4;

[0046] The connecting block 53 is fixed to the lower end of the mounting frame 51 , and a shaft hole connected to the driving cam 8 is opened on the connecting block 53 .

[0047] When the driving cam 8 rotates, the mounting frame 51 is driven to move through the rotating shaft and the connecting block 53, and at the same time the cleaning plate 52 is driven to move, so that the multiple cleaning plates 52 can move synchronously, and reach the effect of extending into the grid holes of the vibrating grating screen 4 and moving from bottom to top along the vibrating grating screen 4, and then descending and separating from the vibrating grating screen 4, thereby achieving the purpose of automatically cleaning the vibrating grating screen 4.

[0048] Furthermore, an inclined top wall 22 is formed at the intersection of the side of the collecting bin 2 away from the feed hopper 11 and the upper wall of the collecting bin 2, and an air outlet 221 for air discharge is opened on the inclined top wall 22;

[0049] An inclined bottom wall 24 is formed between the bottom wall of the collecting bin 2 adjacent to the feed hopper 11 and the side wall of the collecting bin 2 close to the screening box 1 . The end of the inclined bottom wall 24 away from the feed hopper 11 is inclined downward.

[0050] By setting the inclined top wall 22, when the chili leaves enter the collecting bin 2 with the airflow, the chili leaves gradually fall in the collecting bin 2. Some of the chili leaves first fall on the inclined bottom wall 24, and then slide down to the bottom of the collecting bin 2 and accumulate under the action of the airflow and their own inertia; the other part of the chili leaves that move synchronously with the airflow are eventually blocked by the inclined top wall 22, thereby stopping moving and falling. The falling chili leaves are also accumulated at the bottom of the collecting bin 2, and the air is discharged from the air outlet 221 to ensure smooth airflow.

[0051] Furthermore, an inclined guide plate 23 is fixed to the inside of the collecting bin 2. The upper end of the guide plate 23 is fixed to the lower end of the inclined top wall 22, and the lower end of the guide plate 23 is inclined toward the side close to the screening box 1. The guide plate 23 can guide and collect the falling pepper leaves, and at the same time can guide the airflow so that the airflow flows toward the inclined top wall 22, thereby achieving the purpose of stable discharge of the airflow.

[0052] A cleaning port is provided on one side of the collecting bin 2, and a bin door 21 for closing the cleaning port is hingedly connected to the outer wall of the collecting bin 2, so that the staff can clean the concentrated pepper leaves.

[0053] Furthermore, the air distribution box 3 is a box body with one side open and extending horizontally. An air outlet grid plate 31 is fixed on the side of the air distribution box 3 close to the feed hopper 11. The air outlet grid plate 31 is provided with a plurality of evenly distributed air outlet grid holes.

[0054] A guide block 32 is fixed inside the air distribution box 3. The upper and lower ends of the guide block 32 are respectively fixed to the inner top wall and the inner bottom wall of the air distribution box 3. The guide block 32 forms an arc-shaped side wall toward the side where the air distribution box 3 is connected to the air pump 7. The middle part of the arc-shaped side wall protrudes toward the side of the air pump 7.

[0055] The guide block 32 is provided with a plurality of vertically arranged air distribution holes 321 .

[0056] By setting the guide block 32, after the air flow passes through the pipeline and enters the air distribution box 3, the air flow moves to both sides of the air distribution box 3 under the action of the guide block 32, and part of the air flow flows forward directly through the air distribution hole 321 during the movement, so that the air flow distribution in the air distribution box 3 is more uniform. After being blown out through the air outlet grid plate 31, a uniform air flow is formed, which is conducive to the comprehensive removal of the pepper leaves in the falling mixture.

[0057] The working principle of the utility model is as follows: in daily use, the staff first pours the mixture of pepper branch pieces, pepper fruits and pepper leaves after breaking the large branches into the feed hopper 11. The mixture passes through the narrow and long discharge channel at the bottom of the feed hopper 11 during the descent, thereby forming a distribution state with a relatively thin vertical thickness. At this time, the air pump 7 blows a uniform air flow to one side of the collecting bin 2 through the air distribution box 3, thereby blowing away the pepper leaves, while the pepper branch pieces and pepper fruits continue to fall due to their heavier weight, and the pepper leaves are driven into the collecting bin 2 and collected. The fallen pepper branch pieces and pepper fruits fall on the vibrating grating screen 4 and are screened by the vibrating grating screen 4, so that the pepper branch pieces and pepper fruits are separated. And the effect of distinguishing and screening the pepper branch fragments and pepper leaves is achieved, and the pepper branch fragments and pepper leaves are avoided from being entangled with each other, which makes the pepper branch fragments and pepper leaves difficult to screen out, thereby improving the net product rate after screening; at the same time, the driving motor 6 drives the mounting frame 51 to move by driving the cam 8, and makes the cleaning plate 52 extend into the grid hole of the vibrating grating screen 4 and move tilted from bottom to top along the vibrating grating screen 4, and then the cleaning plate 52 descends and separates from the vibrating grating screen 4, so that the pepper branch fragments or pepper fruits blocked in the grid hole of the vibrating grating screen 4 can be cleaned and screened again, ensuring that the vibrating grating screen 4 can always perform effective screening operations during the screening process, thereby ensuring the screening efficiency.

[0058] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A screening assembly for pepper threshing, comprising a screening box (1) mounted on a pepper picking machine, wherein a feed hopper (11) is provided at the upper end of the screening box (1), and a narrow and long feeding channel is formed at the lower part of the feed hopper (11) and communicated with the screening box (1), characterized in that: The feed hopper (11) has a through hole on the left and right sides thereof, wherein the outer cover of the through hole on one side is connected to the collecting bin (2), and the outer cover of the through hole on the other side is installed with an air distribution box (3), and the air distribution box (3) is connected to an air pump (7) through a pipeline, and the air distribution box (3) is used to uniformly deliver airflow to one side of the collecting bin (2) to blow away the pepper leaves; A vibrating grating screen (4) capable of vibrating up and down is installed obliquely in the screening box (1), and a vibration motor for driving the vibrating grating screen (4) to vibrate is provided at the lower end of the vibrating grating screen (4); A cleaning mechanism (5) is also elastically installed in the screening box (1), and the cleaning mechanism (5) is located at the lower end of the vibrating grid screen (4) and is adapted to the grid holes of the screening box (1); A driving motor (6) is fixed to the front side wall of the screening box (1), and the output shaft end of the driving motor (6) movably passes through the side wall of the screening box (1) and extends into the screening box (1). A driving cam (8) is fixed to the output shaft end of the driving motor (6), and the other end of the driving cam (8) is rotatably connected to the lower end of the cleaning mechanism (5) via a rotating shaft. When the driving cam (8) rotates, the cleaning mechanism (5) is driven to extend into the grid holes of the vibrating grid screen (4) and move along the vibrating grid screen (4) from bottom to top, after which the cleaning mechanism (5) descends and detaches from the vibrating grid screen (4).

2. The screening assembly for pepper defruiting according to claim 1, characterized in that: The cleaning mechanism (5) comprises: A mounting frame (51), wherein the lower end of the mounting frame (51) is elastically connected to the inner wall of the screening box (1) via an elastic member; a cleaning plate (52), the lower end of the cleaning plate (52) being fixed to the mounting frame (51), the cleaning plate (52) being provided with a plurality of holes corresponding to the plurality of grid holes of the vibrating grid screen (4); A connecting block (53) is fixed to the lower end of the mounting frame (51), and an axial hole connected to the driving cam (8) is provided on the connecting block (53).

3. The screening assembly for pepper defruiting according to claim 1, characterized in that: An inclined top wall (22) is formed at the intersection of the side of the collecting bin (2) away from the feed hopper (11) and the upper wall of the collecting bin (2), and an air outlet (221) for exhausting air is provided on the inclined top wall (22); An inclined bottom wall (24) is formed between the bottom wall of the collecting bin (2) adjacent to the feed hopper (11) and the side wall of the collecting bin (2) close to the screening box (1), and the end of the inclined bottom wall (24) away from the feed hopper (11) is inclined downward.

4. The screening assembly for pepper defruiting according to claim 3, characterized in that: A guide plate (23) arranged obliquely is fixed on the inner side of the collecting bin (2), the upper end of the guide plate (23) is fixed to the lower end of the inclined top wall (22), and the lower end of the guide plate (23) is inclined toward a side close to the screening box (1); A cleaning port is provided on one side of the collecting bin (2), and a bin door (21) for closing the cleaning port is hingedly connected to the outer side wall of the collecting bin (2).

5. The screening assembly for pepper defruiting according to claim 1, characterized in that: The air distribution box (3) is a box body with one side open and extending horizontally. An air outlet grid plate (31) is fixed on the side of the air distribution box (3) close to the feed hopper (11). The air outlet grid plate (31) is provided with a plurality of evenly distributed air outlet grid holes. A guide block (32) is fixed in the air distribution box (3), and the upper and lower ends of the guide block (32) are respectively fixed to the inner top wall and the inner bottom wall of the air distribution box (3). The guide block (32) forms an arc-shaped side wall toward the side of the air distribution box (3) connected to the air pump (7), and the middle part of the arc-shaped side wall protrudes toward the side of the air pump (7); The guide block (32) is provided with a plurality of vertically arranged air distribution holes (321).

6. The screening assembly for pepper threshing according to claim 1, characterized in that: A vertically arranged partition (13) is fixed inside the screening box (1), and the partition (13) is located at one end of the vibrating grating screen (4) away from the inner wall of the screening box (1). The partition (13) divides the lower part of the screening box (1) into two separate chambers; A material taking opening is provided on one side of the screening box (1), and the material taking opening corresponds to a chamber in the screening box (1) for storing pepper fruits. A material taking door (12) for closing the material taking opening is hingedly connected to the outside of the screening box (1).

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