Rotary cutting, conveying and seedling separating all-in-one machine for blanket-shaped rice seedlings

Abstract

The utility model discloses a rotary type cutting, conveying and seedling separating all-in-one machine for blanket-shaped rice seedlings, and particularly relates to the technical field of agricultural machinery. According to the technical scheme, a cutting mechanism is installed at the front end of a rack, and a hollow rotating platform is fixed to a chain conveyor through a clamp and moves in the longitudinal direction of the rack; the chain conveyor is arranged in the longitudinal direction of the rack, located behind the cutting mechanism and used for driving the hollow rotating platform to move from the starting position to the cutting mechanism, and the seedling conveying mechanism is installed at the tail end of the rack and used for conveying seedlings to the next procedure in sequence. According to the utility model, blanket-shaped seedlings can be cut into blocks, and the cut seedlings are orderly conveyed into a seedling throwing device. Rotary cutting can be realized, rapid disassembly and maintenance of the cutting knife can be realized, and the seedling damage rate during cutting is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of agricultural machinery, and particularly relates to a rotary rice blanket seedling cutting, conveying and seedling separating integrated machine. BACKGROUND

[0002] The existing rice blanket seedling cutting mostly adopts manual or semi-mechanized equipment, such as a handheld cutting knife or a fixed cutting machine. Such equipment needs to adjust the seedling position for multiple times to complete horizontal and vertical cutting, has low cutting efficiency (average processing is less than or equal to 200 trays per hour), and has uneven cutting surface (error is greater than or equal to 5 mm), thereby causing high seedling root damage rate (greater than or equal to 10%) and affecting subsequent transplanting survival rate.

[0003] The chain conveyor lacks a special fixing structure, and the seedling tray is prone to shaking in the conveying process, thereby causing seedling scattering (scattering rate is greater than or equal to 15%). The seedling separating link mostly relies on a vibrating screen or manual sorting, and the seedling separation is uneven (qualified rate is less than or equal to 85%), and the transparent observation component is missing, so that the seedling posture cannot be monitored in real time.

[0004] At present, the cutting, rotating, conveying and seedling separating function modules in the equipment are mostly independent devices, and manual connection operation is needed. For example, the seedlings need to be manually transferred to the conveying belt after cutting, and the rotating platform is triggered to flip by manual operation. Such design causes interruption of the operation process, significant waste of working hours, and high dependence on the skills of the operator.

[0005] The cutting blade, chain conveyor clamp and other consumable parts generally adopt a welding or integral structure, the blade needs to be disassembled and the machine component needs to be disassembled (time consumption is greater than or equal to 30 minutes) for replacement, and the maintenance cost is high. In addition, the clamp has fixed specifications and cannot adapt to seedling trays of different sizes, and the equipment has poor universality. UTILITY MODEL CONTENTS

[0006] The utility model aims to provide a rotary rice blanket seedling cutting, conveying and seedling separating integrated machine, which can cut the blanket seedlings into blocks and orderly convey the cut seedlings to the seedling throwing device. The rotary cutting can be realized, the cutting knife can be quickly disassembled and maintained, and the seedling damage rate during cutting is reduced.

[0007] The technical scheme adopted by the utility model is as follows:

[0008] The integrated machine comprises a rack;

[0009] A cutting mechanism is installed at the front end of the rack, after completing horizontal cutting, the hollow rotating platform is rotated by 90 degrees, and the cutting mechanism cuts again to form block-shaped seedlings;

[0010] The hollow rotating platform is fixed to the chain conveyor through a clamp and moves along the longitudinal direction of the rack;

[0011] The chain conveyor is arranged along the longitudinal direction of the rack, is located behind the cutting mechanism, drives the hollow rotating platform to move from a starting position to the cutting mechanism, and the seedling conveying mechanism is installed at the end of the rack and is used for orderly conveying seedlings to the next process.

[0012] Further, the cutting mechanism transmission shaft, eccentric wheel, cutting mechanism motor, long connecting plate, short connecting plate, cutting knife support frame, cutting knife seat and cutting knife blade are further included, the cutting knife seat is fixed on the cutting knife support frame, is connected with the cutting mechanism transmission shaft through the long connecting plate and the short connecting plate, the cutting mechanism transmission shaft and the cutting mechanism motor are connected with the eccentric wheel respectively, the eccentric wheel is fixed on the rack, and the cutting knife blade is detachably fixed on the cutting knife seat through bolts.

[0013] Further, the hollow rotating platform includes a seedling combing frame, a seedling tray, a rotating shaft and a hollow rotating platform motor, the seedling combing frame is fixed on the seedling tray, the seedling tray is connected with the rotating shaft through bolts, and the rotating shaft is driven to rotate by the hollow rotating platform motor through gear meshing;

[0014] Further, the chain conveyor includes a chain, a chain wheel, an outer connecting plate, a chain conveyor transmission shaft, a bearing, a chain conveyor motor, a motor seat and a clamp, the chain is meshed with the chain wheel, the outer connecting plate is fixed on the chain, the chain conveyor transmission shaft connects two chain wheels, the chain conveyor motor is fixed on the motor seat and is connected with the chain wheel, and the clamp is installed on the outer connecting plate and is used for fixing the hollow rotating platform.

[0015] Further, the seedling conveying mechanism includes an anti-falling side plate, a seedling guiding pipe, a cover plate, a seedling separating plate and a seedling combing mechanism motor, the anti-falling side plate is arranged outside the seedling conveying mechanism, the transparent cover plate is installed above the seedling separating plate, and the seedling guiding pipe is connected below the seedling conveying mechanism.

[0016] Further, the control box is electrically connected with the cutting mechanism motor, the hollow rotating platform motor, the chain conveyor motor and the seedling combing mechanism motor.

[0017] Further, the rotating shaft of the hollow rotating platform is driven to realize 90° intermittent rotation through gear meshing.

[0018] Further, the clamp of the chain conveyor is an adjustable clamp and is suitable for hollow rotating platforms of different specifications.

[0019] Further, the seedling separating plate is provided with uniformly distributed guide grooves and is used for orderly separating seedlings.

[0020] The cutting blade in the application is of a detachable structure, the blade can be replaced conveniently, the fatigue life and durability of the structure are improved, the maintenance cost is reduced, and the service life is prolonged.

[0021] 2. The movement mode of the cutting mechanism is optimized, and since the blanket seedlings have good toughness, the reciprocating movement of the cutter driven by the motor and eccentric wheel can better cut the seedlings.

[0022] 3. The hollow rotating platform is designed, which can cut the rows and columns of the blanket seedlings with the same cutter, improves the utilization rate of the machine, and reduces the production cost. The seedling combing mechanism is added in the middle of the hollow rotating platform, which is used to comb the seedlings and reduce the damage rate of the seedlings during cutting,

[0023] 4. The clamp is used to fix the hollow rotating platform on the chain conveyor, which is convenient for conveying the hollow rotating platform, and the clamp plays a good fixing role when the hollow rotating platform is turned over with the chain conveyor.

[0024] 5. The seedling conveying mechanism loaded below the device, the conveying belt movement direction is opposite to the chain conveyor movement direction, which is convenient for conveying the cut seedlings, and the anti-falling side plate is installed on the seedling conveying mechanism to prevent the seedlings from falling out of the device when turning over.

[0025] 6. The seedling separating plate is designed on the seedling conveying mechanism, which can orderly separate the disordered seedlings when the seedlings fall from the hollow rotating platform to the seedling conveying mechanism, better conveying the seedlings, and better conveying the seedlings to the seedling guide pipe, and then conveying to the subsequent device through the seedling guide pipe. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is the isometric view of the rotary rice blanket seedling cutting all-in-one machine provided by the application;

[0027] Figure 2 is the isometric view of the cutting mechanism provided by the application;

[0028] Figure 3 is the top view of the hollow rotating platform provided by the application;

[0029] Figure 4 is the front view of the hollow rotating platform provided by the application;

[0030] Figure 5 is the isometric view of the seedling conveying mechanism provided by the application.

[0031] In the drawings, the components represented by each reference numeral are listed as follows:

[0032] 1- frame;

[0033] 2- cutting mechanism, 2-1 cutting mechanism transmission shaft, 2-2 eccentric wheel, 2-3 cutting mechanism motor, 2-4 long connecting plate, 2-5 short connecting plate, 2-6 cutting knife support frame, 2-7 cutting knife seat, 2-8 cutting knife blade;

[0034] 3-Hollow rotating platform, 3-1 Seedling comb, 3-2 Seedling tray, 3-3 Rotating shaft, 3-4 Hollow rotating platform motor;

[0035] 4-Chain conveyor, 4-1 Chain, 4-2 Sprockets, 4-3 Outer connecting plate, 4-4 Chain conveyor drive shaft, 4-5 Bearing, 4-6 Chain conveyor motor, 4-7 Motor base;

[0036] 5-Seedling conveying mechanism; 5-1 Anti-drop side plate; 5-2 Seedling guide tube; 5-3 Cover plate; 5-4 Seedling separating plate; 5-5 Seedling combing mechanism motor; 6-Clamping fixture; 7-Control box Detailed Implementation

[0037] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0038] Specific implementation method one: as follows Figures 1-5 As shown, frame 1 serves as the supporting base for the entire device and is horizontally arranged on the ground. Other functional modules are fixed to frame 1 by bolts or welding. The material used is steel-aluminum alloy, which provides a high-strength and lightweight structural design, bringing advantages such as convenient manufacturing, vibration resistance, and impact resistance.

[0039] Cutting mechanism 2: Installed at the front end of frame 1 near the start of operation; eccentric wheel 2-2 is directly fixed to the top crossbeam of frame 1 via bearing; the transmission shaft 2-1 of the cutting mechanism is arranged horizontally, one end is connected to the eccentric wheel 2-2, and the other end is connected to the motor 2-3 of the cutting mechanism via a coupling, and the motor 2-3 is fixed to the bracket on the side of frame 1; the cutting blade support frame 2-6 is hinged to the transmission shaft 2-1 via a long connecting plate 2-4 and a short connecting plate 2-5 to form a four-bar linkage mechanism, realizing the reciprocating cutting motion of the blade 2-8; the cutting blade holder 2-7 is vertically fixed below the support frame 2-6, and the blade 2-8 is detachably installed on the holder 2-7 via bolts.

[0040] Cutting blade 2-8 is made of 65Mn high carbon steel, hardness HRC 58-62, surface chromium plating treatment, thickness 3mm, blade angle 25°, to ensure wear resistance and cutting sharpness. Blade length 500mm, width 50mm, single cutting stroke 150mm. Driven by eccentric wheel (2-2), realize 60 times / minute reciprocating motion. Blade is fixed to the blade seat (2-7) by M8 bolts, disassembly time ≤30 seconds. Motor type: YE3-132M-4, rated power 1.5kW, speed 1450rpm, drive eccentric wheel through reducer (speed ratio 1:10). Experimental data show that single cutting can handle rice blanket seedlings width 300mm, cutting accuracy error ≤2mm.

[0041] Hollow rotating platform 3: fixed to the outer connecting plate 4-3 of chain conveyor 4 by clamp 6, moves along the longitudinal direction of rack 1 with chain 4-1; seedling tray 3-2 is horizontally arranged, its bottom is connected with rotating shaft 3-3 through bolts, rotating shaft 3-3 vertically penetrates the center of hollow rotating platform 3; seedling comb 3-1 is vertically installed on the upper surface of seedling tray 3-2, used for fixing rice blanket seedlings; hollow rotating platform motor 3-4 is fixed to the side of rack 1, drives rotating shaft 3-3 to realize 90° intermittent rotation through gear engagement.

[0042] Rotating shaft 3-3 is made of 45# steel, diameter 50mm, surface quenching treatment, rotation accuracy ±0.5°. Gear parameters: modulus 3, number of teeth 20, transmission ratio 1:4, driven by hollow rotating platform motor 3-4 type 57HS22, step angle 1.8°, realize 90° intermittent rotation, response time ≤0.5 seconds. Seedling tray 3-2 size: length×width×height=600mm×400mm×50mm, made of aluminum alloy, weight ≤5kg. Bearing capacity: maximum load 20kg, suitable for rice blanket seedling size (500mm×300mm×50mm)

[0043] Chain conveyor 4: arranged along the longitudinal direction of rack 1, located behind cutting mechanism 2; chain wheels 4-2 are installed in pairs on the front and rear ends of rack 1, connected through chain conveyor transmission shaft 4-4, transmission shaft 4-4 is supported by bearing 4-5; motor 4-6 is fixed on motor base 4-7, motor base 4-7 is welded on the tail of rack 1, motor 4-6 drives chain wheels 4-2 through chain transmission; outer connecting plates 4-3 are evenly distributed on the outside of chain 4-1, clamps 6 are adjustable clamping structures, fixed on outer connecting plates 4-3, used for clamping the bottom of hollow rotating platform 3.

[0044] Chain (4-1) and chain wheel (4-2) are ISO 08B-1 roller chains with pitch 12.7mm, tensile strength ≥18kN.

[0045] The number of sprocket teeth is double-row sprocket, the number of teeth is 24, and the pitch circle diameter is 98 mm. The power of the motor 4-6 is adjusted by the frequency converter to 0.75 kW, and the rotating speed is adjusted to realize the adjustable conveying speed of 0.3-0.8 m / s.

[0046] The clamp 6 is adapted to the bottom diameter of 50-80 mm of the hollow rotating platform, and the clamping force is ≥200 N. The adjustment mode is: the hand wheel and screw rod structure is adopted, and the adjustment time is ≤10 seconds.

[0047] The seedling conveying mechanism 5 is installed at the outlet of the chain conveyor 4 at the end of the rack 1, below the overturning position of the hollow rotating platform 3; the seedling separating plate 5-4 is horizontally arranged, the surface is provided with equidistantly distributed guide grooves, and the upper part is covered with a transparent cover plate 5-3; the anti-falling side plate 5-1 is vertically fixed on both sides of the seedling separating plate 5-4 to prevent the seedlings from scattering; and the seedling guide pipe 5-2 is obliquely connected to the end of the seedling separating plate 5-4 and extends to the inlet of the subsequent device. The material of the seedling separating plate 5-4 is selected to be polyethylene fiber, which enhances the cutting resistance.

[0048] The seedling separating plate 5-4 is uniformly provided with 10 guide grooves, the groove width is 15 mm, the depth is 20 mm, and the spacing is 50 mm. The transparent cover plate 5-3 is a transparent PC plate with a thickness of 5 mm and a light transmittance of ≥90%, which is convenient for observing the posture of the seedlings. The inclination angle of the seedling guide pipe 5-2 is 30°, the length is 800 mm, the inner wall is smoothly treated (Ra≤0.8 μm), and the seedling sliding time is ≤3 seconds. The height of the anti-falling side plate 5-1 is 100 mm, and the material is ABS plastic with an impact strength of ≥30 kJ / m².

[0049] The control box 7 is independently installed on the side of the rack 1, close to the operator's station; it is connected with the cutting mechanism motor 2-3, the hollow rotating platform motor 3-4, the chain conveyor motor 4-6 and the seedling combing mechanism motor 5-5 through a cable to realize time sequence control. The time sequence parameters are: after the chain conveyor is started, the cutting mechanism is started after a delay of 2 seconds; the hollow rotating platform rotates 90° in 1 second, and the second cutting is started after an interval of 3 seconds; the response time of the seedling separating action of the seedling conveying mechanism is ≤1 second. The sensor configuration: the photoelectric sensor (model E3Z-T61) detects the position of the hollow rotating platform, and the error is ±1 mm.

[0050] The cutting effect: the consistency of the size of the seedling blocks after cutting: the length error is ±2 mm, and the width error is ±1 mm (the test sample n=100). The conveying stability: when the load of the chain conveyor is 20 kg, the running deviation is ≤3 mm / m. The seedling separating efficiency: the success rate of the seedling separating plate guide groove is ≥98%, and the seedling damage rate is ≤1%.

[0051] Working principle: the chain conveyor 4 drives the hollow rotating platform 3 to move from the starting position to the cutting mechanism 2;

[0052] After the transverse cutting is completed by the cutting mechanism 2, the hollow rotating platform 3 is rotated by 90°, and the cutting mechanism 2 cuts again to form block-shaped seedlings;

[0053] The chain conveyor 4 continues to convey the hollow rotating platform 3 to above the seedling conveying mechanism 5, and the platform 3 is flipped to make the seedlings fall into the seedling separating plate 5-4;

[0054] The seedling conveying mechanism 5 orderly conveys the seedlings to the next process through the seedling separating plate 5-4 and the seedling guide pipe 5-2.

[0055] Specifically, during operation, the control box 7 sends a command, the chain conveyor motor 4-6 is first operated to drive the chain conveyor transmission shaft 4-4 and the chain wheel 4-2 to rotate, since the chain wheel 4-2 is engaged with the chain 4-1, the chain 4-1 starts to drive the hollow rotating platform 3 on the outer connecting plate 4-3 to move. When the hollow rotating platform 3 moves to the front of the cutting mechanism 2, the control box 7 sends a command, the cutting mechanism motor 2-3 is first operated to drive the eccentric wheel 2-2 to move in a circle, the eccentric wheel 2-2 is connected with the long connecting plate 2-4 and the short connecting plate 2-5 and the cutting mechanism transmission shaft 2-1 to move back and forth, so as to realize the cutting function. After the cutting mechanism 2 completes the transverse cutting of the blanket-shaped seedlings, the control box 7 sends a command, the hollow rotating platform is rotated by 90°, and the cutting mechanism 2 is operated again according to the previous command to cut the blanket-shaped seedlings into blocks. The cut blanket-shaped seedlings continue to move forward with the chain conveyor 4, and then the hollow rotating platform 3 is flipped and falls onto the seedling conveying mechanism 5 by gravity. The outer side is provided with a anti-falling side plate 5-1 to prevent falling outside the device during the flipping process. After the seedlings fall onto the seedling conveying mechanism 5, the seedling conveying mechanism 5 starts to move after receiving a command from the control box 7. When the seedlings move to the seedling separating plate 5-4, the seedlings are orderly separated. A transparent cover plate 5-3 is installed above the seedling separating plate 5-4, so as to facilitate observation of the posture of the seedlings. The seedling conveying mechanism 5 is connected with the seedling guide pipe 5-2 below. The seedlings enter the seedling guide pipe 5-2 and then slide into the subsequent device.

[0056] The above only describes preferred embodiments of the present application, and it should be pointed out that, for ordinary skilled persons in the technical field, without departing from the principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should also be considered as the protection scope of the present application. Structures, devices and operation methods not specifically described and explained in the present application are implemented according to conventional means in the field, unless otherwise specified and limited.

Claims

1. A rotary rice blanket seedling cutting, conveying, and separating integrated machine, characterized in that: It includes a rack (1); The cutting mechanism (2) is installed on the front end of the rack (1). After completing the transverse cutting, the hollow rotating platform (3) rotates 90°, and the cutting mechanism (2) cuts again to form a block-shaped seedling. The hollow rotating platform (3) is fixed on the chain conveyor (4) through the clamp (6) and moves along the longitudinal direction of the rack (1). The chain conveyor (4) is arranged along the longitudinal direction of the rack (1) and is located behind the cutting mechanism (2). It drives the hollow rotating platform (3) to move from the starting position to the cutting mechanism (2). The seedling conveying mechanism (5) is installed at the end of the rack (1) and is used to orderly convey the seedlings to the next process.

2. The rotary rice blanket seedling cutting, conveying and dividing machine according to claim 1, characterized in that, The cutting mechanism (2) includes a cutting mechanism transmission shaft (2-1), an eccentric wheel (2-2), a cutting mechanism motor (2-3), a long connecting plate (2-4), a short connecting plate (2-5), a cutting knife support frame (2-6), a cutting knife seat (2-7), and a cutting knife blade (2-8). The cutting knife seat (2-7) is fixed on the cutting knife support frame (2-6) and is connected with the cutting mechanism transmission shaft (2-1) through the long connecting plate (2-4) and the short connecting plate (2-5). The cutting mechanism transmission shaft (2-1) and the cutting mechanism motor (2-3) are respectively connected with the eccentric wheel (2-2). The eccentric wheel (2-2) is fixed on the rack (1). The cutting knife blade (2-8) is detachably fixed on the cutting knife seat (2-7) by bolts.

3. The rotary rice blanket seedling cutting, conveying and dividing machine according to claim 1 or 2, characterized in that, The hollow rotating platform (3) includes a seedling combing frame (3-1), a seedling tray (3-2), a rotating shaft (3-3), and a hollow rotating platform motor (3-4). The seedling combing frame (3-1) is fixed on the seedling tray (3-2). The seedling tray (3-2) is connected with the rotating shaft (3-3) by bolts and is driven by the hollow rotating platform motor (3-4) to rotate.

4. The rotary rice blanket seedling cutting, conveying and dividing machine according to claim 3, characterized in that The chain conveyor (4) includes a chain (4-1), a sprocket (4-2), an outer connecting plate (4-3), a chain conveyor transmission shaft (4-4), a bearing (4-5), a chain conveyor motor (4-6), a motor base (4-7), and a clamp (6). The chain (4-1) is engaged with the sprocket (4-2). The outer connecting plate (4-3) is fixed on the chain (4-1). The chain conveyor transmission shaft (4-4) connects two sprockets (4-2). The chain conveyor motor (4-6) is fixed on the motor base (4-7) and is connected with the sprocket (4-2). The clamp (6) is installed on the outer connecting plate (4-3) to fix the hollow rotating platform (3).

5. The rotary rice blanket seedling cutting, conveying and dividing machine according to claim 4, characterized in that The seedling conveying mechanism (5) includes an anti-falling side plate (5-1), a seedling guiding pipe (5-2), a cover plate (5-3), a seedling separating plate (5-4), and a seedling combing mechanism motor (5-5). The anti-falling side plate (5-1) is arranged on the outside of the seedling conveying mechanism (5). The transparent cover plate (5-3) is installed above the seedling separating plate (5-4). The seedling guiding pipe (5-2) is connected below the seedling conveying mechanism (5).

6. The rotary rice blanket seedling cutting, conveying and dividing machine according to claim 5, characterized in that The control box (7) is electrically connected with the cutting mechanism motor (2-3), the hollow rotating platform motor (3-4), the chain conveyor motor (4-6) and the combing mechanism motor (5-5).

7. The rotary rice blanket seedling cutting, conveying and dividing machine according to claim 3, characterized in that, The rotating shaft (3-3) of the hollow rotating platform (3) is driven to realize 90° intermittent rotation by the motor (3-4) through gear engagement.

8. The rotary rice blanket seedling cutting, conveying and dividing machine according to claim 3, characterized in that, The clamp (6) of the chain conveyor (4) is an adjustable clamp suitable for hollow rotating platforms (3) of different specifications.

9. The rotary rice blanket seedling cutting, conveying and dividing machine according to claim 5, characterized in that, The surface of the seedling separating plate (5-4) is provided with uniformly distributed guide grooves for orderly separating seedlings.

Images