A kind of sweet waxy corn processing threshing equipment
By using a two-stage threshing structure and separation system, combined with a single motor drive and screening mechanism, the problems of unsatisfactory threshing rate and high breakage rate in sweet and waxy corn threshing have been solved, achieving efficient and low-cost corn kernel production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINCHANG CITY JINHE HUIMIN PLANTING FARMERS PROFESSIONAL COOP
- Filing Date
- 2025-07-08
- Publication Date
- 2026-05-29
AI Technical Summary
Existing single-stage threshing equipment is difficult to effectively remove sweet and waxy corn kernels, especially those in the middle and root sections. Furthermore, these kernels are prone to breakage during the high-intensity threshing process, resulting in an unsatisfactory threshing rate and a high breakage rate, which affects processing efficiency and raw material utilization.
The system employs a two-stage threshing structure and separation system, combined with energy-saving single-motor drive and screening for impurity removal. The first threshing chamber performs preliminary threshing, while the second threshing chamber performs secondary fine threshing. A vibrating screening mechanism is used to separate corn kernels from impurities, reducing equipment complexity and energy consumption.
It achieves a high de-kerneling rate and a low breakage rate, ensuring the integrity and purity of corn kernels, improving processing efficiency and raw material utilization, while reducing equipment costs and energy consumption.
Smart Images
Figure CN224290776U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sweet and waxy corn processing technology, and specifically discloses a threshing device for sweet and waxy corn processing. Background Technology
[0002] With the development of the agricultural product processing industry, the market demand for sweet waxy corn is increasing due to its unique taste and nutritional value. Efficient and low-loss threshing is one of the key processes in sweet waxy corn processing.
[0003] Currently, most corn threshing equipment on the market adopts a single-stage threshing structure. This type of equipment usually includes a machine body, a feed inlet, a single threshing roller, a separating screen, and a drive device. During operation, the corn cob enters the threshing chamber directly and is threshed in one go by the high-speed rotating threshing roller. The threshed corn kernels fall through the screen, while the corn cob is discharged from another outlet.
[0004] However, the aforementioned existing technical solutions have the following significant drawbacks when applied to the threshing of sweet waxy corn:
[0005] Sweet waxy corn kernels have a high moisture content, soft starch, and are tightly connected to the cob, and their maturity may be uneven. Single-stage threshing often fails to remove all kernels completely in one pass, especially those located in the middle and root of the cob, leading to unsatisfactory threshing rates, affecting processing efficiency and raw material utilization. To improve threshing efficiency, it is often necessary to increase the speed of the single-stage threshing rollers or increase the impact force. However, sweet waxy corn kernels are brittle and easily break under strong, continuous impact and crushing. A high breakage rate not only reduces the integrity and appearance quality of the corn kernels but also increases the difficulty and cost of subsequent sorting. Utility Model Content
[0006] This utility model proposes a threshing device for processing sweet and waxy corn. The sweet and waxy corn threshing device achieves the goals of high threshing rate, low broken kernel rate, high purity corn kernel output, and continuous and efficient production through a two-stage threshing and separation structure, single-motor energy-saving drive, and screening and impurity removal. At the same time, it has the advantages of easy maintenance and stable operation, and is particularly suitable for processing sweet and waxy corn with high requirements for kernel integrity.
[0007] This utility model is implemented as follows: a threshing device for processing sweet and waxy corn includes a threshing machine body, a feeding box disposed on the top of the threshing machine body, a feeding plate communicating with the outer wall of the feeding box, a threshing mechanism disposed inside the threshing machine body, the threshing mechanism including a first separation net and a second separation net detachably installed inside the threshing machine body, the first separation net being located above the second separation net, the first separation net and the second separation net dividing the threshing machine body into a first threshing chamber and a second threshing chamber, and a discharge port being provided at the right end of the bottom of the first separation net;
[0008] The first threshing chamber is rotatably connected to a first threshing roller, one end of which passes through the first threshing chamber and is fixedly mounted with a first pulley;
[0009] The second threshing chamber is rotatably connected to a second threshing roller, one end of which passes through the second threshing chamber and is fixedly mounted with a second pulley;
[0010] The outer wall of the threshing machine body is provided with a drive mechanism for driving the first pulley and the second pulley to rotate;
[0011] A screening mechanism is provided on the right side of the thresher body.
[0012] As a preferred embodiment of the threshing equipment for processing sweet and waxy corn according to this utility model, the driving mechanism includes a first motor fixedly installed on the outer wall of the threshing machine via a base, and a multi-groove pulley fixedly connected to the output end of the first motor. The multi-groove pulley is rotatably connected to the first pulley and the second pulley via belts.
[0013] As a preferred embodiment of the threshing equipment for processing sweet and waxy corn according to this utility model, a feeding plate that is inclined and located below the second separation net is fixedly installed inside the threshing machine body, and a feeding pipe that penetrates the threshing machine body is connected to the right end of the feeding plate.
[0014] As a preferred embodiment of the threshing equipment for processing sweet and waxy corn according to this utility model, the screening mechanism includes an inclined screen plate located below the right end of the feed pipe. A vibrating motor is fixedly installed on the outer wall of the screen plate, and multiple springs are installed at the bottom of the screen plate. A U-shaped discharge plate is fixedly connected to the right end of the screen plate.
[0015] As a preferred embodiment of the threshing equipment for processing sweet and waxy corn according to this utility model, all the springs are fixedly connected to a collection box with an open top at their bottom.
[0016] In a preferred embodiment of the threshing equipment for processing sweet and waxy corn according to this utility model, the outer wall of the second threshing chamber is connected to a corn stalk outlet.
[0017] The beneficial effects of this utility model are:
[0018] 1. The first threshing chamber performs preliminary and powerful threshing, removing most of the corn kernels. The second threshing chamber performs secondary and fine threshing of the remaining corn kernels, ensuring that the corn kernels on the corn cob are fully removed, significantly improving the threshing rate. The first separation net allows the threshed corn kernels and debris to pass through, while the corn cob that is not completely threshed is sent to the second threshing chamber. This grading process reduces the time that corn kernels are excessively crushed and impacted in the first threshing chamber, effectively reducing the breakage rate of whole corn kernels.
[0019] 2. By using a first motor to synchronously drive the first and second pulleys through a multi-groove pulley, compared with the traditional dual-motor drive, the number of motors and the complexity of the control system are reduced, and the equipment manufacturing cost and energy consumption are reduced; the structure is compact, saves installation space, and is easy to integrate into the production line.
[0020] 3. The vibrating screen, with its fine impurity removal screen plate, combined with the vibrating motor and springs, forms a high-efficiency screening system.
[0021] The high-frequency vibration of the vibrating motor causes the material to be projected onto the screen surface, separating and collecting corn kernels, debris, dust, and other impurities. Attached Figure Description
[0022] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.
[0023] Figure 1 This is a front sectional view of a threshing device for processing sweet and waxy corn according to this utility model.
[0024] Figure 2 This is a structural diagram of the first separation net of this utility model.
[0025] Figure 3 This is a rear view of the threshing machine body of this utility model.
[0026] Figure 4 This is a partial rear view of the structure of this utility model.
[0027] Figure 5 This is a structural diagram of the screening mechanism of this utility model.
[0028] The markings in the diagram are as follows: 1. Threshing machine body; 101. Feed box; 102. Feed plate; 2. First separating screen; 201. Discharge port; 3. First threshing chamber; 301. First threshing roller; 302. First pulley; 4. Second separating screen; 401. Second threshing chamber; 402. Second threshing roller; 403. Second pulley; 404. Corn stalk outlet; 5. Discharge plate; 501. Discharge pipe; 6. Screen plate; 601. Spring; 602. Discharge plate; 603. Vibrating motor; 7. Collection box; 8. First motor; 801. Multi-groove pulley. Detailed Implementation
[0029] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.
[0030] Please see Figure 1-5 A threshing device for processing sweet and waxy corn includes a threshing machine body 1, a feeding box 101 disposed on the top of the threshing machine body 1, a feeding plate 102 connected to the outer wall of the feeding box 101, a threshing mechanism disposed inside the threshing machine body 1, the threshing mechanism including a first separating net 2 and a second separating net 4 detachably installed inside the threshing machine body 1, the first separating net 2 being located above the second separating net 4, the first separating net 2 and the second separating net 4 dividing the threshing machine body 1 into a first threshing chamber 3 and a second threshing chamber 401, and a discharge port 201 being opened at the right end of the bottom of the first separating net 2;
[0031] The first threshing chamber 3 is rotatably connected to the inside of the first threshing chamber 3. One end of the first threshing roller 301 passes through the first threshing chamber 3 and is fixedly installed with a first pulley 302.
[0032] The second threshing chamber 401 is rotatably connected to the second threshing roller 402. One end of the second threshing roller 402 passes through the second threshing chamber 401 and is fixedly installed with a second pulley 403.
[0033] The outer wall of the threshing machine body 1 is provided with a drive mechanism for driving the first pulley 302 and the second pulley 403 to rotate;
[0034] A screening mechanism is provided on the right side of the thresher body 1.
[0035] In this embodiment: Sweet corn is poured into the feeding box 101 through the feeding plate 102, and then falls into the first threshing chamber 3. The first threshing roller 301 rotates under the action of the driving mechanism to perform preliminary threshing. The threshed corn kernels and some debris fall through the mesh of the first separating net 2. The corn cobs that are not completely threshed move to the right along the first separating net 2 and enter the second threshing chamber 401 through the discharge port 201. In the second threshing chamber 401, the second threshing roller 402 rotates to perform secondary threshing on the corn cobs falling from the first threshing chamber 3, and to perform more thorough threshing on the corn cobs falling from the first threshing chamber 3, ensuring that the remaining corn kernels are removed.
[0036] By using a first motor 8 to synchronously drive the first pulley 302 and the second pulley 403 through a multi-groove pulley 801, the equipment manufacturing cost and energy consumption are reduced, and continuous threshing operation is ensured.
[0037] The corn kernels and debris separated by the first separating screen 2 and the second separating screen 4 fall onto the inclined feeding plate 5 below. With the help of gravity, they slide along the feeding plate 5 into the feeding pipe 501. The material discharged from the feeding pipe 501 falls onto the inclined screen plate 6. The corn kernels are separated from the debris and impurities by the vibration of the screen plate 6 of the screening mechanism.
[0038] As a technical optimization of this utility model, the driving mechanism includes a first motor 8 fixedly installed on the outer wall of the threshing machine body 1 via a base. The output end of the first motor 8 is fixedly connected to a grooved pulley 801. The grooved pulley 801 is rotatably connected to the first pulley 302 and the second pulley 403 via belts.
[0039] In this embodiment: after the first motor 8 starts, the multi-groove pulley 801 rotates synchronously with the motor output shaft; the multi-groove pulley 801 drives the first pulley 302 and the second pulley 403 respectively through two independent belts, so that the first threshing roller 301 and the second threshing roller 402 rotate at a set speed; the speed difference between the two threshing rollers can be flexibly adjusted by the pulley diameter ratio (e.g., the speed of the second threshing roller 402 is 10%-15% higher than the speed of the first threshing roller 301), to adapt to the threshing requirements of corn with different moisture contents.
[0040] The first threshing roller 301 and the second threshing roller 402 are rotated synchronously to ensure continuous operation of the double-layer threshing chamber.
[0041] As a technical optimization of this utility model, a feeding plate 5 is fixedly installed inside the threshing machine body 1, which is inclined and located below the second separation net 4. The right end of the feeding plate 5 is connected to a feeding pipe 501 that penetrates the threshing machine body 1.
[0042] In this embodiment: the corn kernels and corn stalks separated by the first separating net 2 and the second separating net 4 slide to the right along the inclined feeding plate 5 due to gravity, and the corn kernels are transported to the screen plate 6 outside the machine body through the feeding pipe 501 to avoid accumulation inside the machine body;
[0043] The first separating net 2 and the second separating net 4 have the same mesh size and are used only to separate corn kernels and corn stalks.
[0044] As a technical optimization of this utility model, the screening mechanism includes an inclined screen plate 6, which is located below the right end of the feed pipe 501. A vibration motor 603 is fixedly installed on the outer wall of the screen plate 6, and multiple springs 601 are installed at the bottom of the screen plate 6. A U-shaped discharge plate 602 is fixedly connected to the right end of the screen plate 6.
[0045] In this embodiment: the material (corn kernels, debris) discharged from the feed pipe 501 falls onto the inclined screen plate 6; after the vibration motor 603 is started, it drives the screen plate 6 to vibrate at high frequency, causing the material to jump and slide on the screen surface: smaller impurities (such as debris, dust) fall through the screen holes and into the collection box 7 below; qualified corn kernels, because their particle size is larger than the screen holes, slide along the inclined screen surface to the right-end U-shaped discharge plate 602, completing the collection; the bottom spring 601 supports the screen plate 6, buffering the vibration impact through elastic deformation, while enhancing the vibration amplitude and uniformity of the screen plate 6.
[0046] As a technical optimization of this utility model, all springs 601 are fixedly connected to a collection box 7 with an open top at their bottom.
[0047] In this embodiment: when the screen plate 6 vibrates, impurities (fragments, dust, etc.) fall through the screen holes and directly into the collection box 7;
[0048] The collection box 7 has an open top design, which allows impurities to fall off without obstruction, and a door panel (not shown in the figure) is provided on one side of the collection box 7 for cleaning.
[0049] As a technical optimization of this utility model, the outer wall of the second threshing chamber 401 is connected to a corn stalk outlet 404.
[0050] In this embodiment: In the second threshing chamber 401, after the second threshing roller 402 performs secondary threshing on the corn cob, the remaining corn stalks (with no or only a small number of corn kernels) move towards the outlet due to their own weight or the movement of the threshing roller; the corn stalks are discharged from the machine body through the corn stalk outlet 404 to avoid accumulation and blockage in the second threshing chamber 401.
[0051] The working principle and usage process of this utility model are as follows: Sweet corn is poured into the feeding box 101 through the feeding plate 102, and then falls into the first threshing chamber 3. At this time, the first motor 8 of the drive mechanism drives the first pulley 302 and the second pulley 403 to rotate synchronously through the multi-groove pulley 801 and the belt, so that the first threshing roller 301 and the second threshing roller 402 rotate at a set speed. Therefore, when the first threshing roller 301 rotates, the initial threshing is achieved through the friction and compression between the roller body and the corn. The threshed corn kernels and some broken pieces fall through the mesh of the first separating net 2. The corn cobs that are not completely threshed move to the right along the first separating net 2 and enter the second threshing chamber 401 through the discharge port 201. In the second threshing chamber 401, the second threshing roller 402 rotates at a set speed. 02 rotates to perform secondary threshing on the corn cobs falling from the first threshing chamber 3. The corn kernels and debris removed in the second threshing process fall through the mesh of the second separating screen 4, while the remaining corn stalks are discharged from the corn stalk outlet 404 on the outer wall of the second threshing chamber 401 to avoid blockage. The corn kernels and debris separated by the first separating screen 2 and the second separating screen 4 fall onto the inclined feeding plate 5 below, and slide along the feeding plate 5 into the feeding pipe 501 with the help of gravity. The material discharged from the feeding pipe 501 falls onto the inclined screen plate 6. The vibration motor 603 is started to drive the screen plate 6 to vibrate, so that the corn kernels are separated from the debris and impurities. The qualified corn kernels slide along the inclined surface of the screen plate 6 into the discharge plate 602 for collection, while the small impurities fall into the collection box 7 below through the screen mesh.
[0052] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0053] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.
Claims
1. A threshing device for processing sweet and waxy corn, comprising a threshing machine body (1), a feed box (101) disposed on the top of the threshing machine body (1), wherein the outer wall of the feed box (101) is connected to a feed plate (102), characterized in that: The threshing machine body (1) is provided with a threshing mechanism inside. The threshing mechanism includes a first separation net (2) and a second separation net (4) that are detachably installed inside the threshing machine body (1). The first separation net (2) is located above the second separation net (4). The first separation net (2) and the second separation net (4) divide the threshing machine body (1) into a first threshing chamber (3) and a second threshing chamber (401). A discharge port (201) is provided at the right end of the bottom of the first separation net (2). The first threshing chamber (3) is rotatably connected to the inside of the first threshing chamber (3). One end of the first threshing roller (301) passes through the first threshing chamber (3) and is fixedly installed with a first pulley (302). The second threshing chamber (401) is rotatably connected to a second threshing roller (402), one end of which passes through the second threshing chamber (401) and is fixedly mounted with a second pulley (403); The outer wall of the threshing machine body (1) is provided with a drive mechanism for driving the first pulley (302) and the second pulley (403) to rotate; A screening mechanism is provided on the right side of the thresher body (1).
2. The threshing equipment for processing sweet and waxy corn according to claim 1, characterized in that: The driving mechanism includes a first motor (8) fixedly mounted on the outer wall of the threshing machine body (1) via a base. The output end of the first motor (8) is fixedly connected to a grooved pulley (801). The grooved pulley (801) is rotatably connected to the first pulley (302) and the second pulley (403) via belts.
3. The threshing equipment for processing sweet and waxy corn according to claim 1, characterized in that: The threshing machine body (1) is fixedly installed with a feeding plate (5) that is inclined and located below the second separation net (4). The right end of the feeding plate (5) is connected to a feeding pipe (501) that penetrates the threshing machine body (1).
4. The threshing equipment for processing sweet and waxy corn according to claim 1, characterized in that: The screening mechanism includes an inclined screen plate (6), which is located below the right end of the feed pipe (501). A vibration motor (603) is fixedly installed on the outer wall of the screen plate (6), and multiple springs (601) are installed at the bottom of the screen plate (6). A U-shaped discharge plate (602) is fixedly connected to the right end of the screen plate (6).
5. The threshing equipment for processing sweet waxy corn according to claim 4, characterized in that: All of the springs (601) are fixedly connected to a collection box (7) with an open top at the bottom.
6. The threshing equipment for processing sweet waxy corn according to claim 1, characterized in that: The outer wall of the second threshing chamber (401) is connected to a corn stalk outlet (404).