A maize sheller for automatically separating maize kernels and a method of using the same

Abstract

The application discloses a corn threshing machine capable of automatically separating corn kernels and a use method thereof, and belongs to the technical field of corn threshing and packaging. The corn threshing machine capable of automatically separating corn kernels and the use method thereof comprise a threshing cavity; a feeding port is communicated with the upper side of the threshing cavity; the threshing cavity comprises a working area and an adjusting cavity; a storage box is communicated with the working area; an opening with an open upper end is formed in the storage box; the storage box accommodates the corn kernels generated in the working area; a threshing mechanism is arranged in the working area and is slidably connected with the inner wall of the threshing cavity, so that the working height of the threshing mechanism is adjustable; an adjusting assembly is arranged in the adjusting cavity and is used for limiting the position of the corn in the adjusting cavity; a waste box is communicated with the adjusting cavity and is used for recycling the corn cobs in the adjusting cavity. The corn kernels on the corn cobs can be completely separated, the corn kernels and the corn cobs can be automatically separated, and the corn kernels and the corn cobs can be stored in different storage boxes.

Description

Technical Field

[0001] This invention belongs to the field of corn threshing and packaging technology, and more specifically, relates to a corn threshing machine that automatically separates corn kernels and its usage method. Background Technology

[0002] Corn threshers can quickly separate corn kernels from corn stalks, making them suitable for use in food processing plants in conjunction with rapid freezing and corn canning companies. However, traditional corn threshers often use the method of threshing corn by impacting it against a threshing drum. This method can easily result in incomplete threshing or damage to the corn kernels. As a result, even after threshing by a clean corn thresher, some corn kernels remain on the corn stalks and still need to be manually removed, increasing the labor intensity of the operators. In addition, some corn kernels are damaged, resulting in unnecessary losses, food waste, and reduced profits for the company.

[0003] In addition, corn cobs and kernels after threshing are often discharged from the same outlet, requiring separation of the two later, which greatly reduces the efficiency of corn threshing and kernel collection, complicates the process, and increases processing costs. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a corn thresher that automatically separates corn kernels and its method of use, which can completely separate corn kernels from corn cobs, automatically separate corn kernels and corn cobs, and store them in different storage boxes.

[0005] The present invention discloses an automatic corn kernel separator, comprising a threshing chamber; a feed inlet is connected to the upper side of the threshing chamber, the threshing chamber includes a working area and an adjustment chamber; a storage box is connected to the working area, the storage box has an open opening at the top, and the storage box collects the corn kernels generated in the working area; a threshing mechanism is provided inside the working area, the threshing mechanism is slidably connected to the inner wall of the threshing chamber so that the working height of the threshing mechanism is adjustable; an adjustment component is provided inside the adjustment chamber, the adjustment component restricts the position of the corn kernels in the adjustment chamber; the adjustment chamber is connected to a waste box, the waste box collects the corn cobs in the adjustment chamber.

[0006] As a further improvement of the present invention, the threshing mechanism includes a limiting upper plate; the limiting upper plate is disposed on the left side of the feed inlet, the length of the limiting upper plate is less than the distance from the left inner wall of the threshing chamber to the feed inlet, the left side of the limiting upper plate is slidably connected to the inner wall of the threshing chamber so that the limiting upper plate can slide up and down in the threshing chamber to adjust the distance between the limiting upper plate and the bottom surface of the threshing chamber; the limiting upper plate is made of rigid material and is disposed parallel to the bottom surface of the threshing chamber; a cutting element is connected to the bottom surface of the limiting upper plate, the cutting element is fixedly connected to the limiting upper plate, and the lower part of the cutting element matches the size of the corn cob so that the lower part of the cutting element can abut against the root of the corn kernel to detach the corn kernel.

[0007] As a further improvement of the present invention, the cutting component includes a threshing plate; the threshing plate is made of a rigid material, the cross-sectional shape of the threshing plate is an upwardly bent L shape, the upper end of the vertical plate of the threshing plate is fixedly connected to the lower bottom surface of the limiting upper plate, and the left side of the threshing plate is slidably connected to the inner wall of the threshing chamber; the length of the threshing plate is less than the length of the limiting upper plate, and the length of the threshing plate is greater than the average length of corn.

[0008] As a further improvement of the present invention, protective pads are provided on both the front and rear sides of the threshing plate. The protective pads are made of flexible material and cover both the front and rear sides of the threshing plate.

[0009] As a further improvement of the present invention, the cutting component includes a cutting plate, which is fixedly connected to the lower side of the limiting upper plate. The cutting plate is made of a rigid material, and the length direction of the cutting plate is the same as the length direction of the limiting upper plate. The length of the cutting plate is less than the length of the limiting upper plate and greater than the average length of the corn kernel. The left side of the cutting plate is slidably connected to the inner wall of the threshing chamber. The axial direction of the cutting plate is parallel to the axial direction of the limiting upper plate, and the distance between the upper surface of the cutting plate and the lower bottom surface of the limiting upper plate is equal to the height of the corn kernel. The cutting plate is semi-circular, with the protrusion facing the limiting upper plate, and the radius of the ring in which the cutting plate is located is equal to the average radius of the cross-section of the corn cob.

[0010] As a further improvement of the present invention, the threshing mechanism further includes a fixed plate and a threshing rod; the fixed plate is disposed on the right side of the adjusting cavity, the lower bottom surface of the fixed plate is fixedly connected to the upper surface of the lower part of the adjusting cavity, and the front and rear surfaces of the fixed plate are fixedly connected to the inner walls of the front and rear sides of the adjusting cavity. The fixed plate is disposed perpendicular to the lower bottom surface of the adjusting cavity so that the fixed plate closes the right side of the adjusting cavity; a through hole is provided on the surface of the fixed plate, the through hole passes through the left and right sides of the fixed plate, and the height of the through hole relative to the bottom surface of the adjusting cavity is equal to the average distance from the axis of the corn to the bottom surface of the adjusting cavity when the corn is placed laterally on the bottom surface of the adjusting cavity; the threshing rod is made of rigid material, the outer diameter of the threshing rod is smaller than the inner diameter of the through hole, and the left end of the threshing rod is a pointed end; a motor is connected to the end of the threshing rod away from the adjusting cavity, and the motor controls the rotation of the threshing rod around the axis and controls the displacement of the threshing rod in the left and right directions.

[0011] As a further improvement of the present invention, limiting plates are provided on the front and rear sides of the adjusting cavity. The limiting plates are made of rigid material and are perpendicular to the bottom surface of the adjusting cavity. Limiting pads are fixedly connected to the inner surfaces of the limiting plates near the threshing cavity. The limiting pads are made of elastic material so that they can deform under pressure. The two limiting pads limit the size of the cavity between the two limiting plates. In the free state, the distance between the two limiting pads is less than the width of the corn to be processed.

[0012] As a further improvement of the present invention, a lifting plate is provided between the working area and the adjusting cavity. The lifting plate is vertically arranged, and a motor is electrically connected to the lower end of the lifting plate to control the up and down movement of the lifting plate so that the upper end surface of the lifting plate is higher or lower than the lower bottom surface of the adjusting cavity. A laser emitter is provided on the left side of the threshing cavity. The laser emission direction of the laser emitter is horizontally pointing to the right side of the threshing cavity, and the laser emission direction of one of the laser emitters coincides with the axis of the vertical plate of the threshing plate along its length. The number of laser emitters is equal to the number of rows of corn to be processed. The multiple laser emitters are arranged in a ring, and the ring... The position of the center of the circle corresponds to the center position of the corn when it is horizontally placed at the bottom of the threshing chamber. The positions of the multiple laser emitters correspond to the gaps between every two rows of corn kernels when the corn is horizontally placed at the bottom of the threshing chamber. A receiving screen is set on the right side of the threshing chamber. The receiving screen is used to receive the laser dot matrix emitted by the multiple laser emitters. A sensor is connected to the receiving screen. The sensor senses and analyzes the number of laser dots received on the receiving screen. The sensor is electrically connected to a control module, which is electrically connected to the threshing mechanism. The control module is electrically connected to a second motor, which controls the up and down movement of the lifting plate.

[0013] As a further improvement of the present invention, the lower bottom surface of the adjusting cavity is a rotating plate; the rotating plate is disposed below the feed inlet so that the corn in the feed inlet falls onto the rotating plate after entering the threshing chamber; the right side of the rotating plate is rotatably connected to the right side of the threshing chamber so that the rotating plate can rotate around the line of intersection between itself and the threshing chamber as an axis; the rotating plate is disposed above the opening of the internal chamber of the waste bin, and the size of the rotating plate is equal to the size of the opening so that when the rotating plate is in a horizontal state, the rotating plate closes the opening.

[0014] As a further improvement of the present invention, a corn thresher for automatically separating corn kernels is provided, the method of use of which includes the following steps: S1: Corn enters the adjustment chamber from the feed inlet, and the number of corn kernels entering the adjustment chamber each time is one;

[0015] S2: The corn is set horizontally in the adjustment chamber, and the distance from the center of the corn to the front and rear sides of the adjustment chamber is equal.

[0016] S3: The motor controls the threshing rod to move to the left, and drives the corn to move to the left until it reaches the lower side of the limit plate, at which point the threshing rod stops moving; the limit plate is controlled to move downward until the bottom surface of the limit plate abuts against the upper surface of the corn, at which point the limit plate stops moving.

[0017] S4: The motor continues to control the threshing rod to move to the left, so that the cutting piece wraps around one row of corn kernels on the corn cob. The lower part of the cutting piece abuts against the root of the corn kernels, and the upper part of the cutting piece abuts against the gap between the two rows of corn kernels on the corn cob. The bottom surface of the limiting plate abuts against the upper surface of the corn kernels. The left end of the corn is pushed to abut against the left inner wall of the threshing chamber. At this time, the row of corn kernels that abut against the root of the cutting piece is detached from the corn surface by force, and the threshing rod is embedded into the corn cob along the axis of the corn.

[0018] S5: The motor controls the threshing rod to rotate, so that the corn kernels rotate in the same direction, so that the root of each row of corn kernels on the corn comes into contact with the lower part of the cutting piece and is dislodged by force. After the corn kernels are threshed, they fall from the lower end of the working area into the storage box.

[0019] S6: After the motor controls the threshing rod to rotate one revolution, the corn kernels rotate one revolution in the same direction. At this time, all the corn kernels on the corn are detached. After the motor controls the threshing rod to stop rotating, it controls the threshing rod to move to the right into the adjustment cavity. The threshing rod continues to move to the right until the right side of the corn abuts against the left inner wall of the adjustment cavity. When the threshing rod has moved completely to the right side of the adjustment cavity, the corn cob is detached from the threshing rod, and the corn cob is restricted to the inside of the adjustment cavity.

[0020] S7: The lower end of the adjustment chamber opens, and the corn cob falls into the waste bin.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows: during the corn rotation process, the lower part of the threshing plate rotates around the outer surface of the corn cob once, so that the corn kernels on the outer surface of the corn cob can be squeezed off the corn cob by the threshing plate, so that the corn kernels on the corn cob can be completely removed, avoiding the situation where the kernels are not completely removed and manual threshing is required.

[0022] Protective pads are provided on both the front and back sides of the threshing plate to prevent corn kernels from being damaged due to contact and squeezing with the rigid threshing plate. This protects the corn kernels, increases the usability of the threshed corn kernels, and reduces costs.

[0023] Limiting pads are set on the front and rear sides of the adjustment chamber. The limiting pads restrict the state of the corn after it enters the adjustment chamber, so that the distance from the center of the corn to the front and rear sides of the adjustment chamber is equal after the corn enters the adjustment chamber. This fixes the contact position between the threshing rod and the corn, eliminating the need to adjust the position of the corn to adjust the contact position between the threshing rod and the corn. This simplifies the steps and improves processing efficiency.

[0024] After threshing, the corn kernels automatically enter the storage bin, and the corn cobs enter the waste bin, thus achieving the separation and recycling of corn kernels and corn cobs without the need for a sorting step, thereby improving processing efficiency.

[0025] Using a semi-circular arc-shaped cutting plate, when the cutting plate comes into contact with the base of the corn kernel, the upper half of the corn kernel can be separated from the corn cob in one go. Then, the corn cob is rotated 180° to complete the separation of all the corn kernels on the corn cob. The threshing efficiency is high, and there are no corn kernels left on the corn cob. The threshing effect is good, avoiding the situation where the kernels are not completely separated and manual threshing is required. Attached Figure Description

[0026] Figure 1 This is an isometric view of the present invention;

[0027] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0028] Figure 3 This is a schematic diagram of the structure in one working state of the present invention;

[0029] Figure 4 This is a schematic diagram of the threshing chamber of the present invention;

[0030] Figure 5 This is a side view of the threshing chamber of the present invention;

[0031] Figure 6 This is a side view of the adjustment cavity of the present invention;

[0032] Figure 7 This is a schematic diagram of the threshing chamber of the present invention;

[0033] Figure 8 This is a side view of the threshing plate of the present invention;

[0034] Figure 9 This is a schematic diagram of the structure of the threshing chamber in one working state of the present invention;

[0035] Figure 10 This is a schematic diagram of the structure of the threshing chamber in one working state of the present invention;

[0036] Figure 11 This is a schematic diagram of the structure of the threshing chamber in one working state of the present invention;

[0037] Figure 12 This is a diagram showing the connection between the threshing plate and the corn during the operation of the threshing chamber of the present invention;

[0038] Figure 13 This is a schematic diagram of the structure of the limiting upper plate and the cutting plate in a specific embodiment two of the present invention;

[0039] Figure 14 This is a diagram showing the connection between the cutting plate and the corn during the operation of the threshing chamber in a specific embodiment of the present invention, which is a second embodiment of the present invention.

[0040] Explanation of the labels in the diagram:

[0041] 1. Feed inlet, 2. Threshing chamber, 21. Adjustment chamber, 22. Limiting pad, 23. Slide rail, 24. Fixing plate, 25. Threshing rod, 26. Limiting upper plate, 27. Threshing plate, 271. Protective pad, 28. Rotating plate, 29. Cutting plate, 3. Storage bin, 4. Waste bin. Detailed Implementation

[0042] Specific Implementation Example 1: Please refer to Figure 1-11 An automatic corn kernel separator includes a feed inlet 1 and a threshing chamber 2.

[0043] The threshing chamber 2 is equipped with a threshing mechanism to enable the threshing chamber 2 to thresh corn kernels and corn cobs to be separated during operation. The upper and lower ends of the threshing chamber 2 are open so that corn can enter from the upper side of the threshing chamber 2 and the threshed corn kernels and corn cobs can be discharged from the lower side of the threshing chamber 2.

[0044] The feed inlet 1 is located on the upper side of the threshing chamber 2 and is connected to the threshing chamber 2 so that corn can enter the threshing chamber 2 through the feed inlet 1 during operation. The lower part of the feed inlet 1 is equal to the size of a corn when it is placed horizontally, so that when the feed inlet 1 provides corn to be processed to the threshing chamber 2, the feed inlet 1 provides only one corn at a time. The lower end of the feed inlet 1 is connected to a feed channel, the size of which is the same as the lower part of the feed inlet 1. The feed channel is vertically set inside the threshing chamber 2 and is located on the upper side of the lower bottom surface of the threshing chamber 2. The distance between the lower end of the feed channel and the lower bottom surface of the threshing chamber 2 is greater than the height of the corn when it is placed horizontally, so that after the corn in the feed inlet 1 enters the threshing chamber 2 horizontally through the feed channel, the corn remains in horizontal contact with the bottom of the threshing chamber 2.

[0045] A storage bin 3 and a waste bin 4 are provided on the lower side of the threshing chamber 2;

[0046] The storage box 3 is located on the lower left side of the threshing chamber 2. The storage box 3 has a chamber inside, and the upper end of the chamber is open to communicate with the threshing chamber 2 so that the corn kernels produced in the threshing chamber 2 can enter the storage box 3. A screening plate is provided at the opening of the storage box 3. The surface of the screening plate has multiple screening holes. The size of the screening holes is the same as the size of the corn kernels to screen the corn kernels that enter the storage box 3 and prevent impurities such as corn cobs from entering the storage box 3.

[0047] Waste bin 4 is located on the right side of storage bin 3. Waste bin 4 has a chamber inside, and the upper end of the chamber is open to communicate with threshing chamber 2. During operation, corn cobs that have been threshed in threshing chamber 2 enter the chamber.

[0048] The bottom surface of the threshing chamber 2 is a slide 23 and a rotating plate 28;

[0049] The slide 23 is located on the left side of the rotating plate 28 and the left side of the feed inlet 1. The left side of the slide 23 is fixedly connected to the inner wall of the threshing chamber 2 so that the slide 23 cannot rotate inside the threshing chamber 2. The slide 23 is located on the upper side of the opening of the internal chamber of the storage box 3. The size of the slide 23 is smaller than the size of the opening to prevent the slide 23 from closing the opening.

[0050] A rotating plate 28 is positioned on the right side of the slide 23 and below the feed inlet 1, so that corn from the feed inlet 1 falls onto the rotating plate 28 after entering the threshing chamber 2. The right side of the rotating plate 28 is rotatably connected to the right side of the threshing chamber 2, allowing the rotating plate 28 to rotate around its intersection with the threshing chamber 2. When the rotating plate 28 is in a horizontal state, its left side is in contact with the right side of the slide 23, so that the upper surface of the rotating plate 28 and the upper surface of the slide 23 are on the same horizontal plane. The rotating plate 28 is positioned above the opening of the internal chamber of the waste bin 4, and the size of the rotating plate 28 is equal to the size of the opening, so that when the rotating plate 28 is in a horizontal state, the rotating plate 28 closes the opening, and when the rotating plate 28 rotates downward, its left end enters the waste bin 4, and the opening opens.

[0051] The rotating plate 28 is connected to a control mechanism, which controls the rotating plate 28 to rotate up and down around the rotating shaft. It should be noted that the control mechanism controls the rotation of the rotating plate 28 up and down and the method are all prior art, so they will not be described in detail in this application.

[0052] Limiting plates are provided on the front and rear sides of the rotating plate 28. The limiting plates are made of rigid material and are perpendicular to the rotating plate. Limiting pads 22 are fixedly connected to the inner surface of the limiting plates near the threshing chamber 2. The limiting pads 22 are made of elastic material so that they can deform under pressure. The two limiting pads 22 limit the size of the chamber between the two limiting plates. In the free state, the distance between the two limiting pads 22 is less than the width of the corn to be processed, so that the corn entering the threshing chamber 2 from the feed inlet 1 keeps its length direction in the same direction as the length direction of the rotating plate 28.

[0053] It should be noted that after the corn enters between the two limiting plates, the corn's gravity provides a downward tendency for the corn to move and allows the corn to push open the limiting pad 22 and fall into contact with the upper surface of the rotating plate 28.

[0054] The detachment mechanism includes a limit plate 26 and a threshing plate 27;

[0055] The upper limiting plate 26 is disposed on the upper side of the slide 23. The length direction of the upper limiting plate 26 is the same as that of the slide 23. The left side of the upper limiting plate 26 is slidably connected to the inner wall of the threshing chamber 2 so that the upper limiting plate 26 can slide up and down in the threshing chamber 2 to adjust the distance between the upper limiting plate 26 and the upper surface of the slide 23. The upper limiting plate 26 is made of rigid material, and the length of the upper limiting plate 26 is equal to the length of the slide 23. The upper limiting plate 26 is set parallel to the slide 23.

[0056] The threshing plate 27 is made of rigid material. The length direction of the threshing plate 27 is the same as the length direction of the slide 23. The length of the threshing plate 27 is less than the length of the upper limiting plate 26 and greater than the average length of corn kernels. The cross-sectional shape of the threshing plate 27 is an upwardly bent L-shape. The threshing plate 27 is located on the upper side of the slide 23. The upper end of the vertical plate of the threshing plate 27 is fixedly connected to the lower bottom surface of the upper limiting plate 26. The left side of the threshing plate 27 is slidably connected to the inner wall of the threshing chamber 2 so that the threshing plate 27 can slide with the upper limiting plate 26 as it slides up and down. Protective pads 271 are provided on both the front and rear sides of the threshing plate 27. The protective pads 271 are made of flexible material and cover the front and rear sides of the threshing plate 27 so that when the threshing plate 27 comes into contact with the corn kernels, the protective pads 271 are positioned between the threshing plate 27 and the corn kernels to prevent the threshing plate 27 from abrading the corn kernels.

[0057] A fixing plate 24 is provided on the right side of the rotating plate 28. The bottom surface of the fixing plate 24 is fixedly connected to the upper surface of the rotating plate 28. The front and rear surfaces of the fixing plate 24 are fixedly connected to the inner wall of the limiting plate near the adjustment cavity 21. The fixing plate 24 is set perpendicular to the rotating plate 28 so that the fixing plate 24 closes the right side of the adjustment cavity 21.

[0058] The surface of the fixing plate 24 is provided with a through hole, which extends through the left and right sides of the fixing plate 24. The height of the through hole relative to the rotating plate 28 is equal to the average distance from the axis of the corn to the upper surface of the rotating plate 28 when the corn is horizontally placed on the rotating plate 28.

[0059] A threshing rod 25 is provided inside the through hole. The threshing rod 25 is made of rigid material. The outer diameter of the threshing rod 25 is smaller than the inner diameter of the through hole. The left end of the threshing rod 25 is a pointed tip so that when the threshing rod 25 contacts the side of the corn cob, the threshing rod 25 can be inserted into the corn cob. The end of the threshing rod 25 away from the adjustment cavity 21 is connected to a motor. The motor controls the rotation of the threshing rod 25 around its axis and controls the displacement of the threshing rod 25 in the left and right directions.

[0060] It should be noted that when making canned corn, it is necessary to ensure the plumpness of the corn kernels. Therefore, large, plump corn kernels need to be selected for threshing. Furthermore, in production and daily life, plump corn kernels are often concentrated in the middle of the corn, while small, less plump kernels are often concentrated at the top and bottom. Therefore, before threshing, the top and bottom of the corn are removed first, while the middle part is retained for threshing. This ensures that the size and volume of the threshed corn kernels are similar. The corn to be processed is nearly cylindrical in shape, and corn of the same variety is of similar size. Therefore, the distance between the lower part of the threshing plate 27 and the lower bottom surface of the limiting plate 26 should be equal to the average height from the root to the top of the corn kernel. This ensures that the distance between the lower part of the threshing plate 27 and the lower bottom surface of the limiting plate 26 can precisely accommodate whole corn kernels. Figure 11 As shown; therefore, the method of using an automatic corn kernel separator includes the following steps:

[0061] S1: Put the corn to be processed into the feed inlet 1. After the corn is placed horizontally in the feed inlet 1, it enters the threshing chamber 2. Control the number of corn entering the threshing chamber 2 each time to be one.

[0062] S2: The corn enters the adjustment chamber 21 and falls to the bottom of the adjustment chamber 21 under the action of gravity. The corn squeezes the two sides of the limiting pad 22. The corn is restricted by the limiting pad 22 and is set horizontally in the adjustment chamber 21. At this time, the distance from the center of the corn to the front and rear sides of the adjustment chamber 21 is equal.

[0063] S3: Motor 1 controls the threshing rod 25 to move to the left until the tip of the threshing rod 25 abuts against the side of the corn cob. At this time, the corn is moved to the left by the force of the threshing rod 25. When the threshing rod 25 controls the corn to move to the lower side of the limit plate 26, the threshing rod 25 stops moving. At this time, the limit plate 26 is controlled to move downward until the bottom surface of the limit plate 26 abuts against the upper surface of the corn, and the limit plate 26 stops moving.

[0064] S4: Motor 1 continues to control the threshing rod 25 to move to the left, so that the vertical plate of the threshing plate 27 abuts against the gap between the two rows of corn kernels on the corn, and the horizontal plate of the threshing plate 27 abuts against the root of the corn kernels; control the threshing rod 25 to continue moving to the left until the left end of the corn is pushed to abut against the left inner wall of the threshing chamber 2. At this time, the row of corn kernels abutting against the root of the threshing plate 27 is detached from the corn surface by force, and the threshing rod 25 is embedded into the corn cob along the axis of the corn.

[0065] S5: Motor 1 controls the threshing rod 25 to rotate counterclockwise around the axis, thereby driving the corn to rotate counterclockwise, so that the rotation direction of the corn is opposite to the rotation direction of the upper part to the lower part of the threshing plate 27, so that the root of each row of corn on the corn abuts against the horizontal plate of the threshing plate 27 and is dislodged by force, and the corn kernels fall from both sides of the slide 23 into the storage box 3 after threshing.

[0066] S6: After the motor controls the threshing rod 25 to rotate one revolution, the corn rotates one revolution in the same direction. At this time, all the corn kernels on the corn are detached. After the motor controls the threshing rod 25 to stop rotating, it controls the threshing rod 25 to move to the right to the upper side of the rotating plate 28. The threshing rod 25 continues to move to the right until the right side of the corn abuts against the left side of the fixed plate 24. When the threshing rod 25 has completely moved to the right side of the fixed plate 24, the corn cob is detached from the threshing rod 25, and the corn cob is restricted by the fixed plate 24 and is limited to the upper side of the rotating plate 28.

[0067] S7: The control mechanism controls the rotating plate 28 to rotate downwards, and the corn cob falls into the waste bin 4.

[0068] It should be noted that in step S4, when the corn is in the threshing chamber 2, it is necessary to ensure that the vertical plate of the threshing plate 27 can always be in contact with or aligned with the gap between any two rows of corn kernels on the corn, so that when the threshing rod 25 drives the corn to move to the left, the vertical plate of the threshing plate 27 can be embedded between any two rows of corn kernels on the corn to dislodge the corn kernels.

[0069] Specific Implementation Example 2: Unlike Specific Implementation Example 1, please refer to... Figure 13-14A cutting plate 29 is fixedly connected to the lower side of the upper limiting plate 26. The cutting plate 29 is made of rigid material, and its length direction is the same as that of the slide 23. The length of the cutting plate 29 is less than that of the upper limiting plate 26, but greater than the average length of the corn kernel. The left side of the cutting plate 29 is slidably connected to the inner wall of the threshing chamber 2, so that the cutting plate 29 can slide with the upper limiting plate 26 as it slides up and down. The axial direction of the cutting plate 29 is parallel to the axial direction of the upper limiting plate 26, and the distance between the upper surface of the cutting plate 29 and the lower bottom surface of the upper limiting plate 26 is equal to the height of the corn kernel, so that when the threshing mechanism is working, the corn kernels... The upper surface is in contact with the lower bottom surface of the limiting plate 26, and the root of the corn kernel is in contact with the upper surface of the cutting plate 29 to remove the corn kernel. The cutting plate 29 is semi-circular and the protrusion faces the limiting plate 26. The radius of the ring in which the cutting plate 29 is located is equal to the average radius of the cross-section of the corn cob, so that when the threshing mechanism is working, the upper surface of the cutting plate 29 abuts against the root of the corn kernel, and the cutting plate 29 cuts off the upper half of the corn kernel in one go. After controlling the corn to rotate 180° around the axis, the cutting plate 29 cuts off the remaining half of the corn kernel to achieve complete removal of the corn kernel. At this time, all the corn kernels on the corn fall off and fall into the storage box 3.

[0070] Specific Embodiment Three: Based on Specific Embodiment One, a lifting plate is provided between the slide 23 and the rotating plate 28. One side of the lifting plate is in contact with the slide 23, and the other side of the lifting plate is in contact with the rotating plate 28. The lower end of the lifting plate is connected to the output end of the second motor, so that the motor controls the lifting plate to move up or down. When the second motor controls the lifting plate to move up until the upper end surface of the lifting plate is higher than the height of the slide 23, the lifting plate blocks the leftward movement of the threshing rod 25. When the second motor controls the lifting plate to move down until the upper end surface of the lifting plate is lower than the height of the slide 23, the lifting plate does not block the left and right movement of the threshing rod 25.

[0071] A laser emitter is installed on the left side of the threshing chamber 2. The laser emitted by the laser emitter is horizontal and points to the right side of the threshing chamber 2. The laser emission direction of one of the laser emitters coincides with the axis of the vertical plate of the threshing plate 27 along its length, so that when the laser is emitted, the vertical plate of the threshing plate 27 is embedded in the gap between two rows of corn kernels on the corn cob. When there are nine rows of corn to be processed, there are nine laser emitters arranged in a ring. The center of the ring corresponds to the center of the corn when it is horizontally placed at the bottom of the threshing chamber 2. The positions of the nine laser emitters correspond to the gaps between every two rows of corn kernels when the corn is horizontally placed at the bottom of the threshing chamber 2, so that when the corn is horizontally placed at the bottom of the threshing chamber 2, the laser emitted by the nine lasers passes through the gaps between every two rows of corn kernels on the corn cob and is projected onto the right side of the threshing chamber 2.

[0072] A receiving screen is provided on the right side of the threshing chamber 2. The receiving screen is used to receive laser dots emitted by multiple laser emitters. A sensor is connected to the receiving screen. The sensor senses and analyzes the number of laser dots received on the receiving screen. The sensor is electrically connected to a control module. The control module is electrically connected to a motor connected to the threshing rod 25. The control module receives the signal from the sensor and controls the rotation of the threshing rod 25 according to the signal from the sensor. The control module is also electrically connected to a second motor. The control module controls the up and down movement of the lifting plate through the second motor.

[0073] It should be noted that different varieties of corn have different numbers of rows of kernels. In this embodiment, nine laser emitters are set to accommodate corn varieties with nine rows. In actual use, the number of laser emitters can be adjusted to accommodate the threshing process of different varieties of corn.

[0074] Working principle: When the threshing machine is used to thresh nine rows of corn, with the corn horizontally positioned on the rotating plate 28, the control module controls the lifting plate to move upward until its upper end is higher than the height of the rotating plate 28. The threshing rod 25 moves to the left, contacting the center of the corn cob. Under the action of the threshing rod 25, the corn moves to the left until its left end contacts the lifting plate. The control module then controls the threshing rod 25 to insert into the corn cob along its axis and stops moving before contacting the lifting plate. Afterward, the control module controls the lifting plate to move downward until its upper end is lower than the height of the rotating plate 28. At this time, nine laser emitters emit light towards the corn. When the laser is aligned with the gap between any two rows of corn kernels on the corn cob, the laser emitted by the laser can pass through the gap and irradiate the receiving screen. The threshing rod 25 rotates to drive the corn to rotate around its axis, thereby adjusting the position of the laser irradiating the corn. When the sensor detects that the number of laser points on the receiving screen is greater than or equal to seven, that is, at least seven gaps on the corn are aligned with the laser, the threshing rod 25 drives the corn to move to the left, so that the vertical plate of the threshing plate 27 is embedded in the gap between the two rows of corn kernels, and the horizontal plate of the threshing plate 27 abuts against the root of one row of corn kernels. The corn kernels in this row are detached from the surface of the corn cob as the corn moves to the left.

Claims

1. A corn thresher that automatically separates corn kernels, characterized in that: The threshing chamber (2) is connected to the upper side of the threshing chamber (2) and includes a working area and an adjustment chamber (21). The working area is connected to a storage box (3), which has an open top and collects corn kernels generated in the working area. The working area is equipped with a threshing mechanism that is slidably connected to the inner wall of the threshing chamber (2) so that the working height of the threshing mechanism is adjustable. The adjustment chamber (21) is equipped with an adjustment component that limits the position of corn kernels in the adjustment chamber (21). The adjustment chamber (21) is connected to a waste bin (4) that collects corn cobs from the adjustment chamber (21). The threshing mechanism includes a limiting upper plate (26); the limiting upper plate (26) is located on the left side of the feed inlet (1), the length of the limiting upper plate (26) is less than the distance from the left inner wall of the threshing chamber (2) to the feed inlet (1), the left side of the limiting upper plate (26) is slidably connected to the inner wall of the threshing chamber (2) so that the limiting upper plate (26) can slide up and down in the threshing chamber (2) to adjust the distance from the limiting upper plate (26) to the bottom surface of the threshing chamber (2); the limiting upper plate (26) is made of rigid material and is set parallel to the bottom surface of the threshing chamber (2); a cutting element is connected to the bottom surface of the limiting upper plate (26), the cutting element is fixedly connected to the limiting upper plate (26), the size of the lower part of the cutting element matches the size of the corn cob so that the lower part of the cutting element can abut against the root of the corn kernel to detach the corn kernel; The cutting component includes a threshing plate (27); the threshing plate (27) is made of rigid material, and the cross-sectional shape of the threshing plate (27) is an upwardly bent L-shape. The upper end of the vertical plate of the threshing plate (27) is fixedly connected to the lower bottom surface of the limiting upper plate (26), and the left side of the threshing plate (27) is slidably connected to the inner wall of the threshing chamber (2); the length of the threshing plate (27) is less than the length of the limiting upper plate (26), and the length of the threshing plate (27) is greater than the average length of corn. A lifting plate is provided between the working area and the adjustment cavity (21). The lifting plate is vertically arranged, and the lower end of the lifting plate is electrically connected to a motor to control the up and down movement of the lifting plate so that the upper end surface of the lifting plate is higher or lower than the lower bottom surface of the adjustment cavity (21). A laser emitter is provided on the left side of the threshing cavity (2). The laser emission direction of the laser emitter is horizontally pointing to the right side of the threshing cavity (2), and the laser emission direction of one of the laser emitters coincides with the axis of the vertical plate of the threshing plate (27) along its length. The number of laser emitters is equal to the number of rows of corn to be processed. Multiple laser emitters are arranged in a ring, and the ring... The position of the center corresponds to the position of the center of the corn when it is horizontally placed at the bottom of the threshing chamber (2). The positions of the multiple laser emitters correspond to the gaps between each two rows of corn kernels when the corn is horizontally placed at the bottom of the threshing chamber (2). A receiving screen is provided on the right side of the threshing chamber (2). The receiving screen is used to receive the laser dot matrix emitted by the multiple laser emitters. A sensor is connected to the receiving screen. The sensor senses and analyzes the number of laser dots received on the receiving screen. The sensor is electrically connected to a control module. The control module is electrically connected to the threshing mechanism. The control module is electrically connected to a second motor. The control module controls the up and down movement of the lifting plate through the second motor.

2. The corn thresher for automatically separating corn kernels according to claim 1, characterized in that: Protective pads (271) are provided on both the front and rear sides of the threshing plate (27). The protective pads (271) are made of flexible material and cover the front and rear sides of the threshing plate (27).

3. The corn thresher for automatically separating corn kernels according to claim 1, characterized in that: The cutting component includes a cutting plate (29), which is fixedly connected to the lower side of the upper limiting plate (26). The cutting plate (29) is made of rigid material. The length direction of the cutting plate (29) is the same as that of the upper limiting plate (26). The length of the cutting plate (29) is less than that of the upper limiting plate (26). The length of the cutting plate (29) is greater than the average length of the corn kernel. The left side of the cutting plate (29) is slidably connected to the inner wall of the threshing chamber (2). The axial direction of the cutting plate (29) is parallel to that of the upper limiting plate (26). The distance between the upper surface of the cutting plate (29) and the lower bottom surface of the upper limiting plate (26) is equal to the height of the corn kernel. The cutting plate (29) is semi-circular and the protrusion faces the upper limiting plate (26). The radius of the ring in which the cutting plate (29) is located is equal to the average radius of the cross-section of the corn kernel.

4. The corn thresher for automatically separating corn kernels according to claim 1, characterized in that: The threshing mechanism also includes a fixing plate (24) and a threshing rod (25); the fixing plate (24) is located on the right side of the adjusting cavity (21), the bottom surface of the fixing plate (24) is fixedly connected to the upper surface of the lower part of the adjusting cavity (21), the front and rear surfaces of the fixing plate (24) are fixedly connected to the inner walls of the front and rear sides of the adjusting cavity (21), the fixing plate (24) is set perpendicular to the bottom surface of the adjusting cavity (21) so that the fixing plate (24) closes the right side of the adjusting cavity (21); a through hole is provided on the surface of the fixing plate (24), the through hole penetrating the fixing plate. (24) On the left and right sides, the height of the through hole relative to the bottom surface of the adjustment cavity (21) is equal to the average distance from the axis of the corn to the bottom surface of the adjustment cavity (21) when the corn is horizontally placed on the bottom surface of the adjustment cavity (21); the threshing rod (25) is made of rigid material, the outer diameter of the threshing rod (25) is smaller than the inner diameter of the through hole, and the left end of the threshing rod (25) is a pointed tip; the end of the threshing rod (25) away from the adjustment cavity (21) is connected to a motor, which controls the rotation of the threshing rod (25) around the axis and controls the displacement of the threshing rod (25) in the left and right directions.

5. A corn thresher for automatically separating corn kernels according to claim 1, characterized in that: Limiting plates are provided on the front and rear sides of the adjustment cavity (21). The limiting plates are made of rigid material and are perpendicular to the bottom surface of the adjustment cavity (21). Limiting pads (22) are fixedly connected to the inner surface of the limiting plates near the threshing cavity (2). The limiting pads (22) are made of elastic material so that the limiting pads (22) can deform under pressure. The two limiting pads (22) limit the size of the cavity between the two limiting plates. In the free state, the distance between the two limiting pads (22) is less than the width of the corn to be processed.

6. A corn thresher for automatically separating corn kernels according to claim 1, characterized in that: The bottom surface of the adjustment chamber (21) is a rotating plate (28); the rotating plate (28) is located on the lower side of the feed inlet (1) so that the corn in the feed inlet (1) falls onto the rotating plate (28) after entering the threshing chamber 2; the right side of the rotating plate (23) is rotatably connected to the right side of the threshing chamber (2) so that the rotating plate (28) can rotate around the line of intersection between it and the threshing chamber (2) as an axis; the rotating plate (28) is located on the upper side of the opening of the internal chamber of the waste bin (4), and the size of the rotating plate (28) is equal to the size of the opening so that when the rotating plate (28) is in a horizontal state, the rotating plate (28) closes the opening.

7. The method of using the automatic corn kernel separator according to claim 1, Includes the following steps: S1: Corn enters the adjustment chamber (21) from the feed inlet (1), and the number of corn entering the adjustment chamber (21) each time is one; S2: The corn is set horizontally in the adjustment cavity (21), and the distance from the center of the corn to the front and rear sides of the adjustment cavity (21) is equal. S3: The threshing rod (25) moves to the left and drives the corn to move to the left to the lower side of the limit plate (26), and the threshing rod (25) stops moving; control the limit plate (26) to move downward until the bottom surface of the limit plate (26) abuts against the upper surface of the corn, and the limit plate (26) stops moving. S4: The threshing rod (25) moves to the left so that the cutting piece wraps around one row of corn kernels on the corn cob. The lower part of the cutting piece abuts against the root of the corn kernels, and the upper part of the cutting piece abuts against the gap between the two rows of corn kernels on the corn cob. The bottom surface of the limiting plate (26) abuts against the upper surface of the corn kernels. The left end of the corn is pushed to abut against the left inner wall of the threshing chamber (2). At this time, the row of corn kernels that abut against the root of the cutting piece is detached from the corn surface by force, and the threshing rod (25) is embedded into the corn cob along the axis of the corn. S5: The motor controls the threshing rod (25) to rotate, so that the corn rotates in the same direction, so that the root of each row of corn on the corn comes into contact with the lower part of the cutting piece and is dislodged by force. After the corn kernels are threshed, they fall from the lower end of the working area into the storage box (3). S6: After the motor controls the threshing rod (25) to rotate one revolution, the corn rotates one revolution in the same direction. At this time, all the corn kernels on the corn are detached. After the motor controls the threshing rod (25) to stop rotating, the threshing rod (25) is controlled to move to the right into the adjustment cavity (21). The threshing rod (25) continues to move to the right until the right side of the corn abuts against the left inner wall of the adjustment cavity (21). The threshing rod (25) moves completely to the right side of the adjustment cavity (21). At this time, the corn cob is detached from the threshing rod (25), and the corn cob is restricted by the adjustment cavity (21) and is confined inside the adjustment cavity (21). S7: The lower end of the adjustment chamber (21) is opened, and the corn cob falls into the waste bin (4).

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