Pepper ring gap sizer

Abstract

The utility model relates to an agricultural machine, namely a pepper annular gap screening machine, including feeding port (1), crushing bin (2), screening device (3), the main part of screening device is a cylinder (12), and the cylinder is placed on the carrier roller (8) above frame (5), and can rotate under the drive of carrier roller, its characterized in that: the cylinder wall of screening device cylinder (12) distributes multilayer annular screen line (13), and the screen gap (14) between each layer annular screen line (13) and adjacent annular screen line (13) are all with cylinder axis as center. Advantageous effect is: changed the direction of the screen gap of existing screening device, and the screen line is made with the reinforcing bar with smaller diameter than the screen gap, and the screen gap area proportion increases fold; the machine weight reduces fold, rotates more flexible, and energy consumption reduces greatly; screen line transverse distribution restricts material longitudinal sliding; especially adopt helical screen line, can push material along helical line, equivalent to increase the screening distance, and screening effect is enhanced significantly.

Description

Technical Field

[0001] This utility model relates to an agricultural machine, namely a chili annular gap screening machine. Background Technology

[0002] Currently, large-scale chili-producing areas all require chili screening machines to harvest chilies. Existing chili screening machines mainly consist of a feeder, a crushing chamber, and a screening unit. The screening unit itself is cylindrical, horizontally mounted on top of the frame, supported by rollers on both sides of the frame, and can rotate under the drive of the rollers. The cylinder wall is composed of multiple screen bars, which are installed parallel to the cylinder's axis, and the gap between the screen bars is also a straight line parallel to the cylinder's axis.

[0003] Before use, the chilies are harvested using a chili harvester and left to dry in the field for a period of time. After drying, the chili stems and leaves become dehydrated and more brittle, making them easier to crush. The chili fruits, on the other hand, become more resilient and less prone to breakage. During sieving, the chili stems, leaves, and fruits are fed into the feeder of the sieving machine, then through the crushing chamber. The chili stems and leaves are crushed into small particles, while the chili fruits remain intact. These particles are then sieved out, and the chili fruits are collected.

[0004] The aforementioned chili harvesting equipment is a standardized product that has been promoted for many years. Patent documents such as "Chili Harvester" (201720864619.6), "Chili Harvesting and Screening Machine" (201820881085.2), and "Chili Anti-clogging Harvesting Machine" (2024 21804778.3) all describe the structure of this screening device. Chili harvesters produced by companies such as Shandong Ruikuang Machinery Co., Ltd., Shandong Taian Aike Machinery Co., Ltd., and Shandong Ningyang Yongchao Machinery Equipment Factory, which have been selling well in the market for many years, are all of this type.

[0005] During use, several drawbacks were discovered in this type of screen: the screen bars connect to both ends of the cylindrical section at a considerable distance. As the skeleton of the screen, the screen bars must possess sufficient strength. Therefore, they are often made of round or square steel pipes with a diameter of 30mm or more. However, the width of the screen gap is only 10-15mm, meaning the steel pipe occupies a much larger area than the gap, thus significantly reducing the screening area. Furthermore, with the screen bars positioned back and forth, the material slides along them with minimal resistance, greatly reducing the force that would otherwise flow towards the gap and consequently lowering the screening efficiency. Clearly, to meet the screening requirements, the diameter and length of the screen need to be increased. Therefore, the existing screen is long, thick, and heavy, making rotation difficult and energy consumption very high, necessitating urgent improvement. Summary of the Invention

[0006] The purpose of this invention is to develop a chili vertical gap screening machine with a large total screening area, high working efficiency, high screening accuracy, light weight, flexible rotation, and low operating energy consumption.

[0007] The above objective is achieved by the following technical solution: providing a chili annular gap screening machine, including a feeding port, a crushing chamber, and a screening device. The main body of the screening device is a cylinder, which is placed on a roller above the frame and can rotate under the drive of the roller. The characteristic is that multiple layers of annular screening lines are distributed on the cylinder wall of the screening device cylinder, and the screening gap between each layer of annular screening lines and the gap between adjacent annular screening lines are all centered on the cylinder axis.

[0008] The width of the sieve gap is 8-20mm, and the sieve wire is a steel bar with a diameter of 4-8mm.

[0009] The screen line is a ring made of steel bars.

[0010] The screen line is a spiral formed by steel bars.

[0011] The spiral is a multi-headed spiral formed by two or more steel bars.

[0012] The screening line is supported by a screen frame, which has two or more support rings and multiple longitudinal beams connected in series between the support rings.

[0013] The longitudinal beam is installed on the inside of the screen line.

[0014] The longitudinal beam is installed on the outside of the screen line.

[0015] The longitudinal beam is equipped with a structure for adjusting the spacing between the sieve lines.

[0016] The front part of the sieve cylinder has a seed-separating sieve, which is covered with sieve holes that allow chili seeds to pass through. The seed-separating sieve is opposite the seed collection box, which is surrounded by a box wall and a box bottom. The bottom of the seed collection box is equipped with a sieve plate that can retain chili seeds and remove impurities smaller than chili seeds. The box wall of the seed collection box is movably connected to the frame and swings and oscillates under the drive of the transmission shaft and crank connecting rod mechanism on one side of the frame.

[0017] The beneficial effects of this invention are: it changes the direction of the existing sieve gap, uses steel bars with a diameter smaller than the sieve gap for the sieve wires, and increases the sieve gap area ratio several times over; the machine weight is reduced several times over, making rotation more flexible and energy consumption significantly reduced; the transverse distribution of the sieve wires restricts the longitudinal sliding of materials; in particular, the use of spiral sieve wires can propel materials along the spiral, effectively increasing the sieve distance and significantly enhancing the sieve effect. Furthermore, it features simple manufacturing, low cost, and ease of use, providing a suitable harvesting machine for large-scale chili pepper cultivation. Attached Figure Description

[0018] Figure 1 This is the front view of the first embodiment;

[0019] Figure 2 This is a top view of the first embodiment;

[0020] Figure 3 This is a top view of the component frame of the first embodiment;

[0021] Figure 4 This is an enlarged front view of the component sieve of the first embodiment;

[0022] Figure 5 This is an enlarged left view of the component sieve of the first embodiment;

[0023] Figure 6 This is a front view of the component screen line in the first embodiment;

[0024] Figure 7 This is a left view of the component screen line in the first embodiment;

[0025] Figure 8 This is a front view of the prior art sieve of the first embodiment;

[0026] Figure 9 This is a front view of the component screen line in the second embodiment;

[0027] Figure 10 This is a left view of the component screening line in the second embodiment;

[0028] Figure 11 This is a perspective view of the component screening line in the second embodiment;

[0029] Figure 12 This is a front view of the component screen line in the third embodiment;

[0030] Figure 13 This is a left view of the component screening line in the third embodiment;

[0031] Figure 14 This is a front view of the longitudinal beam of the component in the fourth embodiment;

[0032] Figure 15 This is a left view of the longitudinal beam of the component in the fourth embodiment;

[0033] Figure 16 This is an assembly drawing of the wire tensioner according to the fourth embodiment;

[0034] Figure 17 This is an enlarged structural diagram of the component tensioner in the fourth embodiment;

[0035] Figure 18 This is a front view of the longitudinal beam of the component in the fifth embodiment;

[0036] Figure 19 This is a left view of the longitudinal beam of the component in the fifth embodiment;

[0037] Figure 20This is a left view of the longitudinal beam in use according to the fifth embodiment;

[0038] Figure 21 This is a left view of the component sieve according to the sixth embodiment;

[0039] Figure 22 This is a partial front view of the component sieve of the seventh embodiment;

[0040] Figure 23 This is a partial top view of the component sieve in the seventh embodiment.

[0041] As shown in the diagram: 1. Feed inlet; 2. Crushing chamber; 3. Screener; 4. Feeder; 5. Frame; 6. Power unit; 7. Drive shaft; 8. Idler roller; 9. Driven idler roller; 10. Conveyor belt; 11. Cylinder; 12. Screening line; 13. Screen gap; 14. Screen frame; 15. Rotary track; 16. Support ring; 17. Longitudinal beam; 18. Screen bar; 19. Spiral line; 20. Groove; 21. Tensioner; 22. Tensioning bolt; 23. Fixing plate; 24. Positioning screw hole; 25. Positioning screw; 26. Seed separator; 27. Seed collection box; 28. Crank connecting rod mechanism; 29. Detailed Implementation

[0042] First embodiment: Figure 1 , Figure 2 An example of a chili annular gap screening machine is given, which, in sequence, consists of a feeding port 1, a crushing chamber 2, and a screening device 3. All of the above mechanisms are mounted on a frame 5.

[0043] Combination Figure 3 As can be seen, the frame 5 is a rectangular frame with wheels underneath. A power unit 6 is mounted at the front of the frame; this power unit can be a diesel engine or a gasoline engine. Idler rollers 8 are mounted on both sides of the frame, with driving rollers 9 and driven rollers 10. The driving roller is connected to the power unit 6 via a drive shaft 7 and abuts against the rotating rail 16 on the outer side of the screen, thus driving the screen to rotate. A conveyor belt 11 is mounted at the rear of the frame, and a feeder 4 is mounted behind the conveyor belt.

[0044] Combination Figure 4 , Figure 5 As can be seen, the main body of the screening device is a cylinder 12, with the axis of the cylinder extending along the front-rear direction of the machine. Two or more sections of rotating rails 16 are provided on the outside of the cylinder, and the idler rollers 8 are supported on the rotating rails. The output end of the power unit drives the active idler roller 9 to rotate via the transmission shaft 7, which in turn drives the cylinder to rotate around its axis, causing the driven idler roller 10 on the other side to rotate accordingly.

[0045] During operation, operators feed the cut and dried chili plants into the feeding hopper, where a conveyor belt pushes them upwards and backwards into the crushing chamber. The crushing chamber contains multiple crushing shafts equipped with crushing teeth, which rotate under the drive of a motor. The dried chili stems and leaves are crushed into small particles upon passing through the crushing chamber. The dried chili fruits, however, are more resilient and less prone to breakage, and their size is generally larger than the stem and leaf particles. After exiting the crushing chamber, the stem and leaf particles and chili fruits enter a screening device. The rotating screen sifts the stem and leaf particles to the ground, while the chili fruits slide to the rear, are picked up by the screen bars and scrapers, and thrown onto a conveyor belt 11. From there, they are either bagged for storage and transport or transferred to a transport vehicle via a conveyor.

[0046] Depend on Figure 1 , Figure 2 , Figure 4 , Figure 5 As can be seen, the main improvement of the screener is that multiple layers of annular screen lines 13 are distributed on the cylinder wall of the screener cylinder 12, and the gaps between adjacent screen lines are screen gaps 14 suitable for screening crushed materials. Each layer of annular screen lines is supported by a screen frame 15. Each layer of annular screen lines and annular screen gaps are centered on the cylinder axis. That is to say, the screen gaps are annular, either perpendicular or non-parallel to the cylinder axis, hence the screen gaps 14 are called annular gaps.

[0047] Combination Figure 5 As can be seen, the screen frame 15 is composed of support rings 17 and longitudinal beams 18. The support rings can be installed at either end of the cylinder or in the middle of the cylinder. The support rings can be made of rigid material and are used to support the longitudinal beams, forming the skeleton of the cylinder. There are at least two longitudinal beams 18, and generally 3-5 are preferable. Each layer of screen lines is supported by longitudinal beams. The longitudinal beams shown in the figure are installed on the inner side of the screen lines, making processing simpler.

[0048] Experiments have shown that with the support of the sieve frame, the weight borne by the sieve wire is very small, thus allowing the sieve wire to be made of finer materials. For example... Figure 6 , Figure 7 As shown, the screen line is made of steel bars with a diameter of 4-8mm, preferably Φ6.5mm coiled steel to make screen line rings.

[0049] Depend on Figure 4 As can be seen, the width of the sieve gap 14 can be determined according to the needs. Generally speaking, the sieve gap width is 8-20mm, and 13-15mm is often selected.

[0050] In order to compare with existing technologies, Figure 8This paper introduces a chili pepper sieve that has been in use for many years. As shown in the figure, the main body of this sieve is also a cylinder, with multiple sieve bars evenly distributed on the cylinder wall. Because the sieve bars need to support the weight of the cylinder, they cannot be too thin; they are generally made of steel pipe with a diameter of 300-320mm. The sieve gap between the sieve bars is 8-20mm, with 13-15mm being the most common. The sieve bars are parallel to the axis of the cylinder, and the direction of the sieve gap is also consistent with the direction of the axis, belonging to a horizontal, linear sieve gap design.

[0051] Compared with existing products, the biggest feature of this screener is that it changes the direction of the screen gap, changing the original screen gap that was parallel to the cylinder axis to a screen gap that is perpendicular to or intersects the cylinder axis, that is, changing the horizontal screen gap to a vertical annular screen gap.

[0052] Experiments have shown that changing the direction of the sieve gap produces unexpected effects. Specifically, these include the following:

[0053] The screening line is made of steel bars with a diameter smaller than the screen gap, which reduces the weight of the machine body by several times, makes the rotation more flexible, and reduces energy consumption by more than 15%.

[0054] The proportion of total screen area has increased several times, significantly improving screening efficiency and accuracy, and increasing operating efficiency by more than 20%.

[0055] The transverse distribution of the screening lines restricts the longitudinal sliding of materials, significantly enhancing screening performance and improving the cleanliness of screened materials by more than 5%.

[0056] The second embodiment: Based on the first embodiment, the structure of the sieve is improved. For example... Figure 9 , Figure 10 , Figure 11 As shown, the screen line 13 is a spiral 20 formed by coiling a steel bar around the axis of a cylinder. Clearly, this spiral can be coiled into the entire cylinder using only a single steel bar, making the manufacturing process very simple and resulting in higher screen gap precision. More importantly, the screen line has very few joints, leading to more consistent screening conditions. Furthermore, the spiral propels the material forward, effectively extending the screening path and significantly improving the screening effect.

[0057] The third embodiment: Based on the aforementioned embodiments, the structure of the sieve line is improved. For example... Figure 12 , Figure 13 As shown, screen line 13 is a spiral line 20 formed by coiling steel bars around the axis of a cylinder. This type of spiral line is a multi-headed spiral line formed by coiling two or more steel bars. The example shown is a 7-headed spiral line. The advantage of a multi-headed spiral line is that, with a fixed screen gap, the pitch of each spiral line is significantly increased compared to a single-headed spiral line, resulting in a significantly enhanced material propulsion performance.

[0058] Fourth embodiment: Based on the aforementioned embodiments, the structure of the longitudinal beam is improved. For example... Figure 14 , Figure 15 As shown, multiple grooves 21 are evenly distributed on the outer side of the longitudinal beam 18. The width of the grooves should match the diameter of the screen wire. Taking a screen wire with a diameter of 6.5mm as an example, the width of the grooves can be slightly greater than 6.5mm. This allows the screen wire to completely enter the grooves. When the screen wire is spaced between two grooves, the screen gap is 6.5 x 2 = 13mm, which is a commonly used screen gap parameter.

[0059] Of course, when the physicochemical properties of chili peppers vary significantly and the sieve gap parameters need frequent adjustments, a longitudinal beam with a narrower groove width should be selected. For example, a groove with an opening width of 3mm can be used, with the grooves interconnected, and the radius of the bottom arc of the groove being 6.5 / 2 = 3.25mm. A portion of the 6.5mm diameter sieve wire enters the groove. Each time the sieve wire moves one groove, the sieve gap can be adjusted by 3mm. In this way, the groove not only serves to fix the sieve wire but also allows for adjustments to various sieve gap sizes, significantly enhancing adaptability.

[0060] The aforementioned longitudinal beam structure is best suited for use with the tensioner 22. For example... Figure 16 , Figure 17 As shown, a threaded section is provided at one end of the screen wire 13, serving as a tensioning bolt 23. A fixing plate 24 is provided at one end of the cylinder, with a through hole that mates with the tensioning bolt. The screen wire passes through the through hole, and then the nut is tightened to tighten the screen wire and fix its position. Conversely, the position of the screen wire can be adjusted by loosening the nut.

[0061] Of course, if the physicochemical properties of chili peppers are relatively consistent and the sieve gap size is relatively stable, the position of the sieve line can be fixed by welding or other methods.

[0062] Fifth embodiment: Based on the aforementioned embodiments, the structure of the longitudinal beam is improved, and a structure for adjusting the screen gap is proposed. For example... Figure 18 , Figure 19 As shown, multiple positioning screw holes 25 are evenly distributed on the outer side of the longitudinal beam 18, along with corresponding positioning screws 26. To improve the screen gap adjustment performance, the positioning screw holes can be arranged in two or more rows, with adjacent rows of screw holes staggered. When it is necessary to adjust the screen gap width, the screen line can be tightened to the appropriate position, and then... Figure 20 As shown, simply tighten it with the positioning screw.

[0063] Sixth embodiment: Based on the foregoing embodiments, another screen frame structure for the screening device is proposed. For example... Figure 21 As shown, the screen frame 15 consists of a support ring 17 and longitudinal beams 18. There are three or more longitudinal beams, installed on the outside of the screen line 13. The advantage of this structure is that the inner side of the cylinder is smooth, resulting in relatively uniform screening conditions. Its disadvantage is that installation is more difficult; it is best to fix the position of the screen line by welding.

[0064] Seventh embodiment: A small number of chili peppers will be damaged after passing through the crushing chamber. The damaged peppers are still usable and have minimal impact on sales. However, the vast majority of the chili seeds from the damaged peppers will fall into the field. Since chili seeds are a hot-selling product, it is necessary to break up whole peppers to collect the seeds to meet market demand. Therefore, this example addresses the problem of chili seed collection by improving the structure of the sieve.

[0065] like Figure 22 , Figure 23 As shown, a seed-separating sieve 27, woven from fine filaments, is installed at the front of the cylindrical section 12 of the sieve. The sieve is covered with sieve holes large enough for chili seeds to pass through. Below the sieve is a seed-collecting box 28. The box wall is movably connected to the frame, preferably suspended below the frame. One side of the seed-collecting box engages with a crank-connecting rod mechanism 29, which is connected to the power unit 6 via a drive shaft 7 on one side of the frame.

[0066] During operation, as the sieve's cylinder rotates, the seed collection box reciprocates, effectively removing dirt and other impurities mixed in with the chili seeds. The remaining chili seeds are highly clean, making subsequent processing much easier. Experiments have shown that this process collects a large quantity of chili seeds, accounting for over 60% of the chili seeds sold by farmers throughout their entire operating cycle, thus generating substantial additional income for them.

Claims

1. A chili annular gap screening machine, comprising a feeding port (1), a crushing chamber (2), and a screening device (3), wherein the main... The body is a cylinder (12), which is placed on a roller (8) above the frame (5) and can rotate under the drive of the roller. Its features are: The cylindrical wall of the sieve (3) has multiple layers of annular sieve lines (13), and each annular sieve line... The gaps (14) between the line (13) and the adjacent annular screen lines (13) are all centered on the cylindrical axis.

2. The chili annular gap screening machine according to claim 1, characterized in that: The width of the sieve gap (14) is 8-20 mm. The screen line (13) is a steel bar with a diameter of 4-8 mm.

3. The chili annular gap screening machine according to claim 1, characterized in that: The screen (13) is made of steel bars. Circular ring.

4. The chili annular gap screening machine according to claim 1, characterized in that: The screen (13) is made of steel bars. Spiral (20).

5. The chili annular gap screening machine according to claim 4, characterized in that: The spiral (20) is composed of two or more steel lines. A multi-headed spiral formed by ribs.

6. The chili annular gap screening machine according to claim 1, characterized in that: The screening line is supported by a screening frame. (15) There are two or more support rings (17), and multiple longitudinal beams (18) are connected between the support rings (17).

7. The chili annular gap screening machine according to claim 6, characterized in that: The longitudinal beam (18) is installed on the screen line (13). The inside of.

8. The chili annular gap screening machine according to claim 6, characterized in that: The longitudinal beam (18) is installed on the screen line (13). The outside.

9. The chili annular gap screening machine according to claim 6, characterized in that: The longitudinal beam (18) is equipped with an adjusting screen line. (13) The structure of the spacing.

10. The chili annular gap screening machine according to claim 1, characterized in that: The front of the cylinder (12) of the sieve (3) The section has a seed-separating sieve (27), which is covered with sieve holes that allow chili seeds to pass through. Below the seed-separating sieve is the seed collection box. (28) In contrast, the seed collection box (28) is surrounded by four walls and a bottom. The bottom of the seed collection box is equipped with a mechanism to retain chili seeds. The sieve plates remove impurities smaller than chili seeds. The wall of the seed collection box is movably connected to the frame (5), and the transmission is located on one side of the frame. It oscillates under the drive of shaft (7) and crank-connecting rod mechanism (29).

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