A finger-pressing type tobacco leaf picking device and a picking system composed of the same

Abstract

The application provides a finger pressing type tobacco picking device and a picking system composed of the same, and belongs to the technical field of tobacco picking. The picking device comprises a shell and a driving device. The driving device comprises a reciprocating driving device and a rotating driving device. The reciprocating driving device comprises a reciprocating motor and a reciprocating motor reducer. The output end of the reciprocating motor reducer is connected with a reciprocating connecting device. The working end of the reciprocating connecting device is connected with a picking mechanism. The rotating driving device comprises a rotating motor and a rotating motor reducer. The output end of the rotating motor reducer is connected with a rotating connecting device. The rotating connecting device drives the picking mechanism to rotate through a rotating cylinder. The application adopts the action of pressing downward by imitating human hand to pick tobacco. The core shaft moves up and down reciprocatingly to drive the picking finger to complete the action of lifting up and pressing down. When the picking finger does not touch the tobacco plant, the picking finger only rotates with the rotating cylinder and does not make the picking action. The tobacco breaking rate in the picking process is reduced, and unnecessary energy waste is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tobacco picking, in particular to a finger pressing type tobacco picking device and a picking system composed of the same. BACKGROUND

[0002] Tobacco is widely planted, mainly in hilly and mountainous areas, with complex geographical environment and variable climate, which increases the difficulty of mechanized harvesting. For a long time, tobacco picking mainly relies on manual work, which is a traditional picking method with high labor intensity, low efficiency, and easy to miss the best harvesting time, resulting in the decline of tobacco quality and economic loss. With the continuous rise of labor cost, the traditional manual picking method brings great economic pressure to tobacco farmers, and it is urgent to improve the picking efficiency and reduce the production cost. Moreover, the picking work is extremely arduous in the summer with high temperature and heavy rain, and it is urgent to develop a tobacco picking device.

[0003] Tobacco has a long growth cycle, and the maturity period of tobacco in different parts is different, so it needs to be picked in several times. Moreover, the physical properties of tobacco such as leaf thickness and toughness also affect the picking effect. At the same time, the market requires higher quality and supply stability of tobacco, which prompts the picking method to be upgraded. SUMMARY

[0004] The present application aims to overcome the shortcomings of the prior art, and provides a finger pressing type tobacco picking device and a picking system composed of the same. The design of the picking machine fully considers the growth characteristics and picking requirements of tobacco, realizes accurate picking and protection of tobacco, and can effectively ensure the integrity of the picked tobacco.

[0005] Technical scheme: The finger pressing type tobacco picking device comprises a shell, a driving device is fixed on the shell, the driving device drives a picking mechanism to perform picking and resetting actions, the cross section of the shell is fan-shaped, the circular corner part of the fan-shaped part is provided with the driving device, the driving device comprises a reciprocating driving device and a rotating driving device, the reciprocating driving device comprises a reciprocating motor and a reciprocating motor 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 the picking mechanism; the rotating driving device comprises a rotating motor and a rotating motor reducer, the output end of the rotating motor reducer is connected with 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 uniformly distributed in the circumferential direction of the rotating cylinder, and the picking fingers perform lifting and pressing actions through the reciprocating connecting device.

[0007] The reciprocating motor reduces the rotating speed and increases the torque through the reciprocating motor reducer, and the output end is connected with the reciprocating connecting device. The reciprocating connecting device converts the rotating motion of the motor into linear reciprocating motion to drive the picking mechanism to perform the action of lifting up and pressing down, which is used to simulate the finger pressing action when picking tobacco leaves by hand. The rotating motor reduces the rotating speed and increases the torque through the rotating motor reducer, and the output end is connected with the rotating connecting device. The rotating connecting device drives the picking mechanism to rotate as a whole through the rotating cylinder, so that the picking fingers are in contact with the tobacco plants, and the specified position for picking is reached, and a larger picking area can be covered, thereby improving the picking efficiency. The picking mechanism is composed of a group of picking fingers which are uniformly distributed on the circumference of the rotating cylinder. Under the action of the reciprocating driving device, the picking fingers can perform the action of lifting up and pressing down, simulating the finger pressing picking process of the hand. At the same time, the rotating driving device drives the picking mechanism to rotate as a whole through the rotating cylinder, so that the picking fingers can pick at different positions to realize continuous picking of tobacco leaves.

[0008] Further, the reciprocating connecting device comprises an eccentric circle connected with the output end of the reciprocating motor reducer, the eccentric circle is arranged in the eccentric wheel reciprocating part, and the reciprocating driving device drives the eccentric circle to rotate in the eccentric wheel reciprocating part, thereby driving the eccentric wheel reciprocating part to move up and down. When the reciprocating motor is started, the power is decelerated and increased in torque through the reciprocating motor reducer to adapt to the subsequent motion conversion requirements. The output end of the reducer drives the eccentric circle to rotate. Since the center of the eccentric circle is eccentric to the rotating shaft, the rotation of the eccentric circle will generate an eccentric force, and the eccentric force acts on the eccentric wheel reciprocating part, so that the eccentric wheel reciprocating part moves up and down during the rotation of the eccentric circle; when the eccentric circle rotates, the eccentric point moves on the circumference, causing the force acting on the eccentric wheel reciprocating part to change direction constantly. The changing force makes the eccentric wheel reciprocating part move up and down along the vertical direction, thereby realizing reciprocating motion.

[0009] Further, the rotating connecting device comprises a rotating connecting head connected with the eccentric wheel reciprocating part, the other end of the rotating connecting head is connected with a mandrel, the other end of the mandrel is connected with a rotating disc, and a group of picking finger connecting points are uniformly distributed on the outer wall of the rotating disc. The picking finger connecting points are connected with the picking fingers. The picking fingers can simulate the action of manual picking to achieve efficient and uniform picking effect, while reducing the labor intensity.

[0010] Further, the rotating connecting head is connected with the eccentric wheel reciprocating part through a rotating output shaft, a gear is sleeved on the outer wall of the rotating output shaft, and a gear ring is installed on the inside of the top of the rotating cylinder. The gear is engaged with the gear ring. When the rotating motor is started, high-speed rotating motion is generated, the rotating motor reducer converts the high-speed rotation of the motor into low-speed, high-torque output, the gear on the rotating output shaft is engaged with the gear ring, the rotating motion is transmitted to the rotating cylinder, and the rotating motion of the rotating cylinder drives the picking fingers to rotate, thereby completing the picking action.

[0011] Further, the rotating cylinder is sleeved outside the rotating connecting device, the picking fingers extend outside the rotating cylinder through the perforations on the cylinder wall of the rotating cylinder, the picking fingers are fixed on the outer wall of the rotating cylinder through the lower picking finger support points and the upper picking finger support points, the lower picking finger support points and the upper picking finger support points are connected with the picking fingers through the clamping grooves, the support points rotate and slide in the clamping grooves, and the picking fingers complete the reciprocating rotation movement with the support points as the center under the driving of the reciprocating mechanism.

[0012] A finger pressure type tobacco picking system comprises picking devices and a rack, the rack has a cross beam, two picking devices are hung on the cross beam, and the bottom of the rack is provided with a walking device.

[0013] Advantages: compared with the prior art, the advantages of the present application are that:

[0014] (1) The present application adopts the design of imitating human hand action to press and pick, adopts the up-down reciprocating movement of the mandrel to drive the picking fingers to complete the up-pulling and down-pressing actions, and when the picking fingers do not touch the tobacco plants, the picking fingers only rotate with the rotating cylinder and do not make picking actions, thereby reducing the tobacco breakage rate in the picking process and unnecessary energy waste;

[0015] (2) The present application adopts the controller to control the operation of the two motors, the rotating motor drives the device to rotate actively, and when the picking fingers touch the tobacco plants, the rotating motor is forced to stop rotating, at this time, the rotating motor is blocked in rotation, the signal of the increased current of the rotating motor is received by the controller, and the reciprocating motor is started to control the up-pulling and down-pressing operations of the picking fingers

[0016] (3) The present application designs a finger pressure type tobacco picking system imitating the human hand picking mode, realizes the 360° annular picking of the tobacco leaves on the irregular growth of the tobacco plants when arranged on one side, reduces the tobacco missing rate, improves the operation efficiency, can pick the tobacco leaves around the tobacco plants at 360°, and has high flexibility and small action amplitude. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic view of the picking device in embodiment 1;

[0018] Figure 2 is a structural schematic view of the reciprocating connecting device in embodiment 1;

[0019] Figure 3 is a structural schematic view of the rotating connecting device in embodiment 1;

[0020] Figure 4 is a position schematic view of the up-pulling and down-pressing of the picking fingers in embodiment 1;

[0021] Figure 5 is a structural schematic view of the picking system in embodiment 2;

[0022] Figure 6 is the picking system operation diagram in example 2. DETAILED DESCRIPTION

[0023] The technical solutions of the present application will be described in detail below with reference to the drawings, but the protection scope of the present application is not limited to the described examples.

[0024] Example 1

[0025] As Figure 1 shown, a finger pressing type tobacco picking device, comprising a shell 1, a driving device is fixed on the shell, the driving device drives the picking mechanism to perform picking and resetting actions, the cross section of the shell 1 is fan-shaped, the circular corner part of the fan-shaped is provided with the driving device, the driving device comprises a reciprocating driving device and a rotating driving device. As Figure 2 shown, the reciprocating driving device comprises a reciprocating motor 2 and a reciprocating motor reducer 3, the output end of the reciprocating motor reducer 3 is connected with an eccentric circle 14, the eccentric circle 14 is arranged in an eccentric wheel reciprocating part 4, the reciprocating driving device drives the eccentric circle 14 to rotate in the eccentric wheel reciprocating part 4, so as to drive the eccentric wheel reciprocating part 4 to move up and down reciprocatingly. As Figure 3 shown, the rotating connecting device comprises a rotating connecting head 15 connected with the eccentric wheel reciprocating part 4, the rotating connecting head 15 is connected with the eccentric wheel reciprocating part 4 through a rotating output shaft 20, a gear 19 is sleeved on the outer wall of the rotating output shaft 20, a gear ring 18 is installed on the top of the rotating cylinder 9, the gear 19 is engaged with the gear ring 18. The other end of the rotating connecting head 15 is connected with a mandrel 16, the other end of the mandrel 16 is connected with a rotating disc 27, a group of picking finger connecting points 17 are uniformly distributed on the outer wall of the rotating disc 27, the picking finger connecting points 17 are connected with picking fingers 11. The rotating connecting device drives the picking mechanism to rotate through the rotating cylinder 9; the picking mechanism comprises a group of picking fingers 11 uniformly distributed on the circumferential direction of the rotating cylinder 9, as Figure 4 shown, the picking fingers 11 perform the actions of lifting up and pressing down and returning through the reciprocating connecting device.

[0026] The rotating cylinder 9 is sleeved on the outside of the rotating connecting device, the picking fingers 11 are stretched out of the outside of the rotating cylinder 9 through the perforations on the cylinder wall of the rotating cylinder 9, the picking fingers 11 are fixed on the outer wall of the rotating cylinder 9 through the picking finger lower support points 12 and the picking finger upper support points 13, the picking finger lower support points 12 and the picking finger upper support points 13 are connected with the picking fingers 11 through the clamping grooves.

[0027] Example 2

[0028] As Figure 5 shown, a finger pressing type tobacco picking system, comprising a picking device and a rack 28, the rack 28 has a crossbeam 29, two picking devices are hung on the crossbeam 29 through a fixing device in front of and behind each other, the bottom of the rack 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 arranged in layers, the corresponding picked 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. The single-layer picking consists of the first station 22 and the 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 the 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 do up and down reciprocating motion, 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, such as Figure 6 As shown in the first station operation diagram, the picking fingers 11 circulate around the upper half of the tobacco plant, plucking until they reach the maximum separation position 24, completing the first station plucking of one tobacco plant. The picking fingers 11 then detach from the tobacco plant and, driven by the rotating motor 7, actively rotate again to pick the tobacco leaves of the next tobacco plant. Similarly, the picking fingers 11 at the second station 23 move forward with the finger-pressure tobacco leaf plucking device as a whole, plucking around the lower half of the tobacco plant, thus completing a 360-degree circular plucking of tobacco leaves on the same layer. If multiple layers of picking are required, additional finger-pressure tobacco leaf plucking devices can be added above and below 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 may be made to it in form and detail 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 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 a driving device is provided at the rounded corner portion of the fan-shaped portion. The driving device includes a reciprocating driving device and a rotating driving device. The reciprocating driving device includes a reciprocating motor (2) and a reciprocating motor reducer (3). The output end of the reciprocating motor reducer (3) is connected to a reciprocating connecting device, and the working end of the reciprocating connecting device is connected to a picking mechanism. The rotating driving device includes a rotating motor (7) and a rotating motor reducer (6). The output end of the rotating motor reducer (6) is 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 movements through a reciprocating connection device; The reciprocating connection device includes an eccentric circle (14) connected to the output end of the reciprocating motor reducer (3), the eccentric circle (14) is arranged in the 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; the rotary connection device includes a rotary connector (15) connected to the eccentric wheel reciprocating component (4), the other end of the rotary connector (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); The rotating cylinder (9) is sleeved on the outer side of the rotating connection device, and the picking finger (11) extends out of the outer side of the rotating cylinder (9) through a through hole on the wall of the rotating cylinder (9). The picking finger (11) is fixed to the outer wall of the rotating cylinder (9) through a picking finger lower support point (12) and a 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 finger (11) through a card slot.

2. The finger-pressure tobacco picking device according to claim 1, characterized in that: The rotary connector (15) is connected to the eccentric reciprocating component (4) 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 portion of the top of the rotary cylinder (9); and the gear (19) is meshed with the ring gear (18).

3. A finger-pressure tobacco leaf picking system, characterized by: The invention comprises two picking devices and a frame (28) as claimed in any one of claims 1 to 2, wherein the frame (28) has a crossbeam (29), the two picking devices are hoisted on the crossbeam (29), and the bottom of the frame (28) has a walking device (30).

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