Finger-pressing type tobacco leaf picking device and picking system composed of finger-pressing type tobacco leaf picking device

Abstract

The invention provides a finger-pressing type tobacco leaf picking device and a picking system comprising the same, and belongs to the technical field of tobacco leaf picking, the finger-pressing type tobacco leaf picking device comprises a shell and a driving device, the driving device comprises a reciprocating driving device and a rotary driving device, and the reciprocating driving device comprises a reciprocating motor and a reciprocating motor speed reducer; the output end of the reciprocating motor reducer is connected with a reciprocating connecting device, and the working end of the reciprocating connecting device is connected with a picking mechanism. The rotary driving device comprises a rotary motor and a rotary motor speed reducer, the output end of the rotary motor speed reducer is connected with a rotary connecting device, and the rotary connecting device drives the picking mechanism to rotate through a rotary cylinder; according to the tobacco picking device, pressing picking is conducted by simulating the hand action, the mandrel reciprocates up and down to drive the picking fingers to complete the upward picking and pressing actions, and when the picking fingers do not touch tobacco plants, the picking fingers only rotate along with the rotating cylinder and do not conduct the picking action, so that the tobacco leaf breakage rate in the picking process is reduced, and unnecessary energy waste is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of tobacco leaf picking, and in particular to a finger-pressure type tobacco leaf picking device and a picking system composed of the same. Background Art

[0002] Tobacco is grown in a wide range, mainly in hilly and mountainous areas. The complex geographical environment and changeable climate make mechanized harvesting more difficult. For a long time, tobacco picking has been mainly done manually. This traditional picking method is labor-intensive, inefficient, and prone to miss the best harvest time, resulting in reduced tobacco quality and economic losses. With the continuous increase in labor costs, the traditional manual picking method has brought great economic pressure to tobacco farmers. There is an urgent need to improve picking efficiency and reduce production costs. In addition, the harvesting period is in the hot and rainy summer, and the harvesting work is extremely difficult. The development of tobacco leaf picking devices is imminent.

[0003] Tobacco has a long growth cycle, and different parts of the tobacco leaves mature at different times, so they need to be picked in batches. In addition, the physical properties of tobacco leaves, such as leaf thickness and toughness, will also affect the picking effect. At the same time, the market has higher requirements for tobacco leaf quality and supply stability, prompting an urgent upgrade in the picking method. Summary of the invention

[0004] Purpose of the invention: The purpose of the present invention is to address the deficiencies in the prior art and to provide a finger-pressure tobacco leaf picking device and a picking system composed thereof. The design of the picking machinery fully takes into account the growth characteristics and picking requirements of tobacco leaves, thereby achieving precise picking and protection of tobacco leaves, and effectively ensuring the integrity of the picked tobacco leaves.

[0005] Technical solution: The finger-pressure tobacco picking device described in the present invention includes a shell, on which a driving device is fixed, the driving device drives a picking mechanism to perform picking and resetting actions, the cross-section of the shell is fan-shaped, and the circular corner part of the fan is provided with a driving device, the driving device includes a reciprocating driving device and a rotating driving device, the reciprocating driving device includes a reciprocating motor and a reciprocating motor reducer, the output end of the reciprocating motor reducer is connected to a reciprocating connecting device, and the working end of the reciprocating connecting device is connected to the picking mechanism; the rotating driving device includes a rotating motor and a rotating motor reducer, the output end of the rotating motor reducer is connected to a rotating connecting device, and the rotating connecting device drives the picking mechanism to rotate through a rotating cylinder.

[0006] The picking mechanism comprises a group of picking fingers evenly distributed on the circumference of the rotating cylinder, and the picking fingers perform upward and downward pressing actions through a reciprocating connection device.

[0007] In the present invention, the reciprocating motor reduces the speed and increases the torque through the reciprocating motor reducer, and its output end is connected to the reciprocating connection device. The reciprocating connection device converts the rotational motion of the motor into a linear reciprocating motion, driving the picking mechanism to perform the upward and downward pressing actions, which is used to simulate the finger pressure action when picking tobacco leaves by hand. The rotary motor reduces the speed and increases the torque through the rotary motor reducer, and its output end is connected to the rotary connection device. The rotary connection device drives the picking mechanism to rotate actively as a whole through the rotating cylinder, so that the picking fingers actively contact the tobacco plants and reach the designated position for picking, and can cover a larger picking area at the same time, thereby improving the picking efficiency. The picking mechanism is composed of a group of picking fingers, which are evenly distributed on the circumference of the rotating cylinder. Under the action of the reciprocating drive device, the picking fingers can perform upward and downward pressing actions, simulating the finger pressure picking process of tobacco leaves by human hands. At the same time, the rotary drive device drives the picking mechanism to rotate as a whole through the rotating cylinder, so that the picking fingers can be picked at different positions, thereby realizing continuous picking of tobacco leaves.

[0008] Furthermore, the reciprocating connection device includes an eccentric circle connected to the output end of the reciprocating motor reducer, the eccentric circle is arranged in the eccentric wheel reciprocating component, and the reciprocating drive device drives the eccentric circle to rotate in the eccentric wheel reciprocating component, thereby driving the eccentric wheel reciprocating component to reciprocate up and down. When the reciprocating motor is started, its power is decelerated and torque-increased by the reciprocating motor reducer to meet the needs of subsequent motion conversion. The output end of the reducer drives the eccentric circle to rotate. Since there is an eccentric distance between the center of the eccentric circle and the rotation axis, its rotation will generate an eccentric force, which acts on the eccentric wheel reciprocating component, causing it to reciprocate up and down during the rotation of the eccentric circle; when the eccentric circle rotates, its eccentric point moves on the circumference, causing the direction of the force on the eccentric wheel reciprocating component to change continuously, and this changing force causes the eccentric wheel reciprocating component to move up and down along the vertical direction, thereby realizing reciprocating motion.

[0009] Furthermore, the rotary connection device includes a rotary connector connected to the eccentric circle, the other end of the rotary connector is connected to a core shaft, the other end of the core shaft is connected to a rotating disk, a group of picking finger connection points are evenly distributed on the outer wall of the rotating disk, and the picking finger connection points are connected to the picking fingers. The picking fingers can simulate the action of manual picking, achieve efficient and uniform picking effects, and reduce the intensity of manual labor.

[0010] Furthermore, the rotary connector is connected to the eccentric circle through a rotary output shaft, a gear is sleeved on the outer wall of the rotary output shaft, a ring gear is installed on the inner part of the top of the rotary cylinder, and the gear meshes with the ring gear. The rotary motor is started to generate high-speed rotary motion, and the rotary motor reducer converts the high-speed rotation of the motor into a low-speed, high-torque output, and the gear on the rotary output shaft meshes with the ring gear to transmit the rotary motion to the rotary cylinder. The rotary motion of the rotary cylinder drives the picking fingers to rotate to complete the picking action.

[0011] Furthermore, the rotating cylinder is sleeved on the outside of the rotating connection device, and the picking fingers extend out of the outside of the rotating cylinder through the through holes on the wall of the rotating cylinder. The picking fingers are fixed on the outer wall of the rotating cylinder through the lower supporting point of the picking fingers and the upper supporting point of the picking fingers. The lower supporting point of the picking fingers and the upper supporting point of the picking fingers are connected to the picking fingers through slots, and the supporting points rotate and slide in the slots. Driven by the reciprocating mechanism, the picking fingers complete reciprocating rotational motion with the supporting points as the center of the circle.

[0012] A finger-pressure tobacco leaf picking system comprises a picking device and a frame. The frame has a crossbeam, two picking devices are hoisted on the crossbeam, and a walking device is provided at the bottom of the frame.

[0013] Beneficial effects: Compared with the prior art, the advantages of the present invention are:

[0014] (1) The design of the present invention adopts a downward pressing picking method that simulates human hand movements, and uses a core shaft to reciprocate up and down to drive the picking fingers to complete the lifting and pressing actions. When the picking fingers do not touch the tobacco plants, the picking fingers only rotate with the rotating cylinder and do not perform the picking action, thereby reducing the tobacco leaf breakage rate during the picking process and reducing unnecessary energy waste;

[0015] (2) The present invention uses a controller to control the operation of the two motors. The rotating motor drives the device to rotate actively. When the picking finger touches the tobacco plant, it is forced to stop rotating. At this time, the rotation of the rotating motor is blocked. The signal of increasing current of the rotating motor is received by the controller, and the reciprocating motor is started to control the picking finger to pick up and press down.

[0016] (3) The present invention designs a finger-pressure tobacco leaf picking system that imitates the picking method of human hands, which can complete 360° circular picking of tobacco leaves with irregular growth on tobacco plants when arranged on one side, reduce the tobacco leaf leakage rate, and improve work efficiency. It can pick tobacco leaves 360° around the tobacco plants with high flexibility and small movement range. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the structure of the picking device in Example 1;

[0018] Figure 2 is a schematic structural diagram of the reciprocating connection device in Example 1;

[0019] Figure 3 is a schematic structural diagram of the rotary connection device in Example 1;

[0020] Figure 4 is a schematic diagram of the positions of the picking fingers lifting and pressing down in Example 1;

[0021] Figure 5 is a schematic diagram of the structure of the picking system in Example 2;

[0022] Figure 6This is an operation diagram of the picking system in Example 2. DETAILED DESCRIPTION

[0023] The technical solution of the present invention is described in detail below with reference to the accompanying drawings, but the protection scope of the present invention is not limited to the embodiments.

[0024] Example 1

[0025] like Figure 1 The finger-pressure tobacco leaf picking device shown in the figure comprises a housing 1, on which a driving device is fixed, the driving device drives the picking mechanism to perform picking and resetting actions, the cross section of the housing 1 is fan-shaped, the circular corner part of the fan-shaped portion is provided with a driving device, and the driving device comprises a reciprocating driving device and a rotating driving device. Figure 2 As shown, the reciprocating drive device includes a reciprocating motor 2 and a reciprocating motor reducer 3. The output end of the reciprocating motor reducer 3 is connected to an eccentric circle 14, which is arranged in the eccentric wheel reciprocating component 4. The reciprocating drive device drives the eccentric circle 14 to rotate in the eccentric wheel reciprocating component 4, thereby driving the eccentric wheel reciprocating component 4 to reciprocate up and down. Figure 3 As shown, the rotary connection device includes a rotary connection head 15 connected to the eccentric circle 14, and the rotary connection head 15 is connected to the eccentric circle 14 through a rotary output shaft 20. A gear 19 is sleeved on the outer wall of the rotary output shaft 20, and a ring gear 18 is installed on the inner part of the top of the rotating cylinder 9, and the gear 19 is meshed with the ring gear 18. The other end of the rotary connection head 15 is connected to the core shaft 16, and the other end of the core shaft 16 is connected to a rotating disk 27. A group of picking finger connection points 17 are evenly distributed on the outer wall of the rotating disk 27, and the picking finger connection points 17 are connected to the picking fingers 11. The rotary connection device drives the picking mechanism to rotate through the rotating cylinder 9; the picking mechanism includes a group of picking fingers 11 evenly distributed on the circumference of the rotating cylinder 9, as shown in FIG. Figure 4 As shown, the picking finger 11 performs the lifting and pressing actions and returns to its original position through a reciprocating connection device.

[0026] The rotating cylinder 9 is sleeved on the outside of the rotating connection device, and the picking fingers 11 extend out of the outside of the rotating cylinder 9 through the through holes on the wall of the rotating cylinder 9. The picking fingers 11 are fixed to the outer wall of the rotating cylinder 9 through the lower supporting point 12 of the picking fingers and the upper supporting point 13 of the picking fingers. The lower supporting point 12 of the picking fingers and the upper supporting point 13 of the picking fingers are connected to the picking fingers 11 through slots.

[0027] Example 2

[0028] like Figure 5 As shown, a finger pressure tobacco leaf picking system includes a picking device and a frame 28. The frame 28 has a crossbeam 29. Two picking devices are suspended on the crossbeam 29 one after the other through a fixing device. The bottom of the frame 28 has a walking device 30.

[0029] like Figure 6 As shown, the operation process of this embodiment is as follows:

[0030] Since tobacco leaves are grown in layers, the corresponding leaves need to be picked in layers. During the picking operation, two finger-pressure tobacco picking devices are arranged front and back with opposite rotation directions. Single-layer picking consists of a first station 22 and a second station 23. The picking fingers 11 installed on the rotating cylinder 9 rotate under the drive of the rotating motor 7. When the picking fingers 11 come into contact with the tobacco plant 21, the picking fingers are at the extreme contact position 26 with the tobacco plant. The picking fingers 11 are blocked by the tobacco plant 21 and stop rotating. At this time, the controller 5 receives a stop signal, and the reciprocating motor 2 starts, driving the eccentric wheel reciprocating component 4 to connect the rotating connector 15 and the core shaft 16 to reciprocate up and down, so that the picking fingers 11 perform the lifting and pressing actions, and complete the pressing and picking task at the base of the tobacco leaves. As the finger-pressure tobacco picking system moves forward as a whole, the picking fingers 11 can pick tobacco leaves in a semi-circular shape around the tobacco plant. Figure 6 As shown in the first station operation diagram, the picking finger 11 picks tobacco leaves in a circular manner around the upper half of the tobacco plant until the picking finger and the tobacco plant are at the extreme separation position 24, completing the first station picking of a tobacco plant. The picking finger 11 separates from the tobacco plant and rotates again under the drive of the rotating motor 7 to pick the tobacco leaves of the next tobacco plant. Similarly, the picking finger 11 of the second station 23 moves forward as a whole with the finger pressure tobacco leaf picking device, picking around the lower half of the tobacco plant, thereby completing the 360° circular picking of tobacco leaves on the same layer. If there is a requirement for multi-layer picking, the number of finger pressure tobacco leaf picking devices can be increased at the upper and lower positions to meet the picking requirements.

[0031] As described above, although the present invention has been shown and described with reference to specific preferred embodiments, it should not be construed as limiting the present invention itself. Various changes in form and details may be made without departing from the spirit and scope of the present invention as defined in the appended claims.

Claims

1. A finger-pressure tobacco leaf picking device, comprising a housing (1), a driving device being fixed to the housing, the driving device driving a picking mechanism to perform picking and resetting actions, characterized in that: The cross section of the housing (1) is fan-shaped, and the circular corner portion of the fan-shaped portion is provided with a driving device, the driving device comprising a reciprocating driving device and a rotating driving device, the reciprocating driving device comprising a reciprocating motor (2) and a reciprocating motor reducer (3), the output end of the reciprocating motor reducer (3) being connected to a reciprocating connecting device, and the working end of the reciprocating connecting device being connected to a picking mechanism; the rotating driving device comprising a rotating motor (7) and a rotating motor reducer (6), the output end of the rotating motor reducer (6) being connected to a rotating connecting device, and the rotating connecting device drives the picking mechanism to rotate through a rotating cylinder (9); The picking mechanism comprises a group of picking fingers (11) evenly distributed on the circumference of the rotating cylinder (9), and the picking fingers (11) perform upward and downward pressing actions through a reciprocating connection device.

2. The finger pressure tobacco leaf picking device according to claim 1, characterized in that: The reciprocating connection device comprises an eccentric circle (14) connected to the output end of the reciprocating motor reducer (3); the eccentric circle (14) is arranged in an eccentric wheel reciprocating component (4); and the reciprocating drive device drives the eccentric circle (14) to rotate in the eccentric wheel reciprocating component (4), thereby driving the eccentric wheel reciprocating component (4) to perform up and down reciprocating motion.

3. The finger pressure tobacco leaf picking device according to claim 2, characterized in that: The rotary connection device comprises a rotary connection head (15) connected to the eccentric circle (14); the other end of the rotary connection head (15) is connected to a core shaft (16); the other end of the core shaft (16) is connected to a rotating disk (27); a group of picking finger connection points (17) are evenly distributed on the outer wall of the rotating disk (27); and the picking finger connection points (17) are connected to the picking fingers (11).

4. The finger pressure tobacco leaf picking device according to claim 1, characterized in that: The rotary connector (15) is connected to the eccentric circle (14) via a rotary output shaft (20); a gear (19) is sleeved on the outer wall of the rotary output shaft (20); a ring gear (18) is installed on the inner part of the top of the rotary cylinder (9); and the gear (19) is meshed with the ring gear (18).

5. The finger pressure tobacco leaf picking device according to claim 4, characterized in that: The rotating cylinder (9) is sleeved on the outer side of the rotating connection device; the picking fingers (11) extend out of the outer side of the rotating cylinder (9) through the through holes on the cylinder wall of the rotating cylinder (9); the picking fingers (11) are fixed to the outer wall of the rotating cylinder (9) through the picking finger lower support point (12) and the picking finger upper support point (13); the picking finger lower support point (12) and the picking finger upper support point (13) are connected to the picking fingers (11) through a card slot.

6. A finger pressure tobacco leaf picking system, characterized in that: It comprises two picking devices and a frame (28) as described in any one of claims 1 to 4, wherein the frame (28) has a crossbeam (29), the two picking devices are suspended on the crossbeam (29), and the bottom of the frame (28) has a walking device (30).

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