Self-adaptive asparagus lettuce leaf poking machine capable of adjusting leaf poking height

Abstract

The utility model provides a self-adaptive asparagus lettuce leaf poking machine capable of adjusting leaf poking height, which is characterized in that a rack provides stable supporting and moving functions, a lifting plate is mounted below a top frame in a lifting manner, a round hole is formed in the middle of the lifting plate, and lifting mechanisms consisting of lifting motors, moving wheel tables, toothed belts and the like are arranged on two sides of the lifting plate; lifting stability is guaranteed through a sliding rail and a sliding seat on the vertical frame, the leaf poking device is composed of two clamping devices in 180-degree central symmetry, the rear portions of the clamping devices are connected with a lifting plate, leaf poking fingers are arranged at the clamping portions of the front ends of the clamping devices, each clamping device is composed of a clamping arm, a semicircular plate, a clamping motor and the like, and a large gear ring and a gear ring motor are further arranged on the lifting plate. And the clamp holder can be driven to rotate to adjust the angle. The device can adapt to asparagus lettuce in different growth stages and shapes through accurate lifting adjustment, a self-adaptive clamping and leaf poking structure and a stable operation mechanism, damage is reduced, leaf poking efficiency and quality are improved, labor intensity is reduced, and the device has wide application prospects and remarkable economic benefits.

Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural machinery technical field, specifically, relate to a kind of self-adapting asparagus lettuce leafing machine of adjustable leafing height. BACKGROUND

[0002] Asparagus lettuce is planted widely in China, and like other vegetables, its field production is a labor-intensive industry, which requires a large amount of manpower for planting, management and harvesting, and has high labor intensity and low labor efficiency.

[0003] Through market research, it is found that the asparagus lettuce leafing and harvesting machinery in the prior art still has certain disadvantages. For example, the leafing height problem during leafing, after asparagus lettuce is planted, a certain number of leaves need to be left, because the uppermost tender leaves of asparagus lettuce are edible, and because of preservation problems, leaving a certain number of asparagus lettuce leaves is easier to preserve, so that they are relatively not easy to rot, so the upper leaves will be left and the lower leaves will be removed.

[0004] Most asparagus lettuce leafing machines have a certain distance between the rotating blades of the leaf stripping blades, which may cause damage to the asparagus lettuce or incomplete leafing. SUMMARY

[0005] The utility model is just based on the above technical problems, and proposes a self-adapting asparagus lettuce leafing machine with adjustable leafing height.

[0006] A self-adapting asparagus lettuce leafing machine with adjustable leafing height, comprising: a rack, a lifting plate, and a leafing device, the rack is composed of a top rack and a plurality of vertical racks supporting the top rack, a cross rack is arranged between the lower ends of the vertical racks on the same side, and walking wheels are arranged at the lower ends of the vertical racks; the lifting plate is movably installed below the top rack, the middle part of the lifting plate is provided with a circular hole, the leafing device is installed below the lifting plate, the leafing device is composed of two clamps, the two clamps are arranged in a 180° central symmetry, the rear part of the clamp is fixedly connected with the lifting plate, the front end of the clamp is provided with a clamping part, two leafing fingers are arranged on the clamping part, and the four leafing fingers are clamped on the outer wall of asparagus lettuce.

[0007] Preferably, the self-adapting asparagus lettuce leafing machine with adjustable leafing height further comprises two lifting mechanisms, the lifting mechanisms are installed on the two sides of the lifting plate, the lifting mechanism comprises a lifting motor, a moving wheel table and a toothed belt, the upper side of the top rack is provided with a top table, the lifting motor is installed on the edge of the top table, two gears are arranged on the moving wheel table, the rear side of the moving wheel table is fixedly connected with the lifting plate, the toothed belt passes through the gears, and the lifting motor drives the toothed belt to drive the moving wheel table to move up and down.

[0008] Preferably, the lifting mechanism further comprises a fixed gear and a belt pressing seat, the output shaft of the lifting motor is provided with a driving gear, the moving wheel table is provided with two upper gears and lower gears distributed vertically, the fixed gear is fixed on the cross frame and vertically opposite to the driving gear, the cross frame on one side of the fixed gear and the top table are each provided with a belt pressing seat, the upper end of the toothed belt is fixed on the belt pressing seat on the top table, and the lower end of the toothed belt is fixed on the belt pressing seat on the cross frame.

[0009] Preferably, the stand is provided with vertical sliding rails, each of the sliding rails is provided with a slidingly matched sliding seat, and the rear end of the sliding seat is fixedly connected with the lifting plate.

[0010] Preferably, the lifting plate is further provided with a large gear ring on the upper side, the inner ring of the large gear ring is provided with a plurality of connection seats uniformly distributed in a circle, the connection seats are in sliding fit with the lifting plate, the lower part of the connection seat is provided with a side opening, the side wall of the circular hole is clamped in the side opening, the large gear ring is rotated by the gear ring gear driven by the two gear ring motors fixed at both ends of the lifting plate, and the rear parts of the two clamping devices are respectively fixedly connected with two opposite connection seats through fixing arms.

[0011] Preferably, the clamping device is composed of a clamping arm, a clamping part, a semicircular plate, a clamping motor and a rack, the rear part of the clamping arm is in sliding fit with the lower end of the fixing arm, the rack is fixedly installed on one side of the clamping arm, the clamping motor is fixed on the lower end of the fixing arm, the drive gear at the lower end of the clamping motor is in engagement with the rack, the front end of the clamping arm is provided with a semicircular plate, two semicircular plates can be combined into a circular ring, and two clamping parts are fixed on the two sides of the semicircular plate.

[0012] Preferably, the clamping part is composed of a leaf bar, a sleeve and a leaf finger, the sleeve is fixed on the semicircular plate, the leaf bar is slidingly installed in the sleeve, a spring one is sleeved on the leaf bar, and the two ends of the spring one are respectively connected with the front part of the leaf bar and the bottom of the sleeve; the leaf finger is an arc-shaped clamping plate, the rear side front part of the leaf finger is hinged to the front section of the leaf bar, and a spring two is arranged between the rear part of the leaf finger and the front end of the leaf bar.

[0013] Preferably, the clamping part is arranged on the semicircular plate in an off-axis manner, the clamping parts on different semicircular plates are transversely staggered, so that the four leaf fingers are staggered and distributed, and the four leaf fingers are close to and cross-clamped on the asparagus lettuce.

[0014] Beneficial effects: first, the device can accurately adjust the height of the leaf, adapt to different growth stages of lettuce, improve the versatility of the equipment; second, the adaptive clamping and leaf structure effectively reduces the damage to the lettuce, ensures the quality; third, the stable lifting and rotating mechanism improves the accuracy and efficiency of the leaf; finally, the overall structure design is reasonable, easy to operate, reduces the labor intensity, improves the production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The structure of the utility model is shown Figure 1 ;

[0016] Figure 2 The structure of the utility model is shown Figure 2 ;

[0017] Figure 3 The structure of the large gear ring is shown

[0018] Figure 4 The structure of the gripper is shown

[0019] Figure 5 The structure of the clamping part is shown. DETAILED DESCRIPTION

[0020] In order to more clearly understand the above purpose, features and advantages of the utility model, the utility model is further described in detail below in combination with the drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0021] As Figures 1-5 shown in a kind of adjustable leaf height's self-adapting lettuce leaf machine, the leaf machine includes rack, lifting plate 6, leaf device, rack is by top frame 2 and multiple support top frame 2's vertical frame 1 composition, top frame 2 is square frame, lateral vertical frame 1 lower end between being equipped with crosspiece 4, vertical frame 1 lower end is equipped with travelling wheel 5, provides stable support and moving ability for entire equipment, to realize simple controllable, can utilize travelling motor to drive travelling wheel 5 to walk autonomously.

[0022] The lifting plate 6 is installed below the top frame 2 and is controlled to lift by the lifting mechanism, which is two groups and is arranged on both sides of the lifting plate 6, and comprises a lifting motor 11, a moving wheel table 10, a toothed belt 13, and a top table 3 arranged on the upper side of the top frame 2, the lifting motor 11 is installed on the edge of the top table 3, the lifting mechanism further comprises a fixed gear 17 and a belt pressing seat 18, the output shaft of the lifting motor 11 is provided with a driving gear 12, the moving wheel table 10 is provided with two upper gears 14 and lower gears 15 distributed upward and downward, the fixed gear 17 is fixed on the cross frame 4 and is opposite to the driving gear 12 upward and downward, the cross frame 4 on one side of the fixed gear 17 and the top table 3 are each provided with a belt pressing seat 18, the toothed belt 13 is a toothed belt, the upper end of the toothed belt 13 is fixed on the belt pressing seat 18 on the top table 3, is led out from the upper belt pressing seat 18, and sequentially passes through the lower side of the upper gear 14, the upper side of the driving gear 12, the lower side of the fixed gear 17 and the upper side of the lower gear 15, and the lower end of the toothed belt 13 is fixed on the belt pressing seat 18 on the cross frame 4, so that the stable operation and transmission of the toothed belt 13 are ensured.

[0023] When the lifting motor 11 is started, the lifting plate 6 is driven to rise in the case of clockwise rotation, and is driven to fall in the case of counterclockwise rotation.

[0024] In order to ensure the stability of the lifting of the lifting plate 6, vertical slide rails 16 are arranged on the stand 1, each slide rail 16 is provided with a sliding seat 601 in sliding cooperation, the rear end of the sliding seat 601 is connected and fixed with the lifting plate 6, and the stability and fluency of the lifting of the lifting plate 6 are improved.

[0025] The upper side of the lifting plate 6 is further provided with a large gear ring 9, the middle part of the lifting plate 6 is provided with a circular hole 7, the inner ring of the large gear ring 9 is provided with connection seats 19 uniformly distributed in a circle, the connection seats 19 are in sliding cooperation with the lifting plate 6, the lower part of the connection seat 19 is provided with a side opening 20, the side wall of the circular hole 7 is clamped in the side opening 20, the large gear ring 9 is driven to rotate by a gear ring gear 23 of a gear ring motor 22 fixed on both ends of the lifting plate 6, the rear parts of the two clamps 8 are connected by a fixed arm 24 through two opposite connection seats 19 respectively, the rotation adjustment of the clamp 8 is realized, and the asparagus of different angles is adapted.

[0026] The middle part of the connection seat 19 is provided with a roller 21, the roller 21 rotates by pressing on the edge of the circular hole 7, and the roller 21 and the bottom of the connection seat 19 form the side opening 20.

[0027] The holder 8 is composed of a clamping arm 81, a clamping part, a semicircular plate 82, a clamping motor 84 and a rack 83, the rear part of the clamping arm 81 is in sliding fit with the lower end of the fixed arm 24, the lower end of the fixed arm 24 is provided with a hollow tube 25, the clamping arm 81 is slidingly installed in the hollow tube 25, one side of the hollow tube 25 is provided with an opening, the rack 83 is fixedly installed on one side of the clamping arm 81, the clamping motor 84 is fixed on the lower end of the fixed arm 24, the driving gear 85 at the lower end of the clamping motor 84 is in mesh with the rack 83 through the opening, the front end of the clamping arm 81 is provided with the semicircular plate 82, the two semicircular plates 82 can be combined into a circular ring, and the two clamping parts are fixed on the two sides of the semicircular plate 82, so as to realize the clamping and loosening actions of the holder 8.

[0028] The clamping part is composed of a leaf bar 87, a sleeve 86 and a leaf finger 88, the sleeve 86 is fixed on the semicircular plate 82, the leaf bar 87 is slidingly installed in the sleeve 86, a spring 89 is sleeved on the leaf bar 87, and the two ends of the spring 89 are connected with the front part of the leaf bar 87 and the bottom of the sleeve 86 respectively; the leaf finger 88 is an arc-shaped clamping plate, the rear side of the leaf finger 88 is hinged to the front section of the leaf bar 87, and a spring 90 is arranged between the rear part of the leaf finger 88 and the front end of the leaf bar 87, so that the leaf finger 88 can adapt to the shape and size of the asparagus lettuce and reduce the damage.

[0029] The clamping part is arranged on the semicircular plate 82 in an off-axis manner, the clamping parts on different semicircular plates 82 are transversely staggered, so as to realize the staggered distribution of the four leaf fingers 88, the four leaf fingers 88 are close to and cross-clamp on the asparagus lettuce, and the clamping and leafing effects are improved.

[0030] In work, the two holders are separated, when the asparagus lettuce is recognized by the positioning recognition, such as the recognition camera installed on the lifting plate 6, the lifting motor 11 controls the lifting plate 6 to descend to a certain height, the gear ring motor 22 is started to drive the large gear ring 9 to rotate, and then the holder 8 is adjusted to a better position, and then the clamping motor 84 is started to drive the two semicircular plates 82 to combine, at this time, the clamping parts on the semicircular plates 82 will cooperate with each other, the leaf fingers 88 will cross each other, as shown in the drawing, the four leaf fingers 88 surround the asparagus lettuce for one circle, and then the lifting motor 11 is started to move up and down, and then the leafing of the asparagus lettuce is realized. Figure 5

[0031] In the above process, the spring 89 and the spring 90 can make the leaf finger 88 adapt to asparagus lettuces of different diameters, and due to the existence of the springs, the leaf finger 88 can be more closely attached to the asparagus lettuce.

[0032] The above only describes preferred embodiments of the present application and is not used to limit the present application, and the present application can be variously changed and modified for those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.​

Claims

1. An adaptive lettuce leaf-picking machine with adjustable leaf-picking height, characterized in that, include: The machine includes a frame, a lifting plate, and a leaf-picking device. The frame consists of a top frame and multiple uprights supporting the top frame. A crossbar is provided between the lower ends of the uprights on the same side, and the lower ends of the uprights are equipped with wheels. The lifting plate is movably installed below the top frame and has a round hole in the middle. The leaf-picking device is installed below the lifting plate and consists of two grippers arranged symmetrically at 180°. The rear of the grippers is connected and fixed to the lifting plate, and the front end of the grippers has a gripping part with two leaf-picking fingers. When the four leaf-picking fingers approach each other, they clamp onto the outer wall of the lettuce.

2. The adaptive lettuce leaf-picking machine with adjustable leaf-picking height according to claim 1, characterized in that, It also includes two sets of lifting mechanisms, which are installed on both sides of the lifting plate. Each lifting mechanism includes a lifting motor, a moving wheel platform, and a toothed belt. A top platform is provided on the upper side of the top frame. The lifting motor is installed on the edge of the top platform. Two gears are provided on the moving wheel platform. The rear side of the moving wheel platform is connected and fixed to the lifting plate. The toothed belt passes around the gears. The lifting motor drives the toothed belt to move the moving wheel platform up and down.

3. The adaptive lettuce leaf-picking machine with adjustable leaf-picking height according to claim 2, characterized in that, The lifting mechanism also includes a fixed gear and a pressure belt seat. The output shaft of the lifting motor is provided with a drive gear. The moving wheel platform is provided with two upper gears and a lower gear distributed vertically. The fixed gear is fixed on the cross frame and is directly opposite the drive gear. A pressure belt seat is provided on the cross frame and the top platform on one side of the fixed gear. The upper end of the toothed belt is fixed on the pressure belt seat on the top platform. It extends from the upper pressure belt seat and passes sequentially around the lower side of the upper gear, the upper side of the drive gear, the lower side of the fixed gear, and the upper side of the lower gear. The lower end of the toothed belt is fixed on the pressure belt seat on the cross frame.

4. The adaptive lettuce leaf-picking machine with adjustable leaf-picking height according to claim 1, characterized in that, The upright frame is provided with vertical slide rails, and each slide rail is provided with a sliding seat that is slidably engaged. The rear end of the sliding seat is connected and fixed to the lifting plate.

5. The adaptive lettuce leaf-picking machine with adjustable leaf-picking height according to claim 1, characterized in that, The upper side of the lifting plate is also provided with a large gear ring. The inner ring of the large gear ring is provided with connecting seats that are evenly distributed around the circumference. The connecting seats are slidably engaged with the lifting plate. The lower part of the connecting seat is provided with a side opening. The side wall of the circular hole is stuck in the side opening. The large gear ring is driven to rotate by two gear ring motors fixed at both ends of the lifting plate through gear ring gears. The rear parts of the two clamps are respectively connected and fixed to the two opposite connecting seats through fixing arms.

6. The adaptive lettuce leaf-picking machine with adjustable leaf-picking height according to claim 5, characterized in that, The clamp consists of a clamping arm, a clamping part, a semi-circular plate, a clamping motor, and a rack. The rear part of the clamping arm is slidably engaged with the lower end of the fixed arm. The rack is fixedly installed on one side of the clamping arm. The clamping motor is fixed to the lower end of the fixed arm. The drive gear at the lower end of the clamping motor meshes with the rack. The front end of the clamping arm is provided with a semi-circular plate. Two semi-circular plates can be combined to form a ring. The two clamping parts are fixed on both sides of the semi-circular plate.

7. The adaptive lettuce leaf-picking machine with adjustable leaf-picking height according to claim 6, characterized in that, The clamping part consists of a leaf-pulling rod, a sleeve, and a leaf-pulling finger. The sleeve is fixed on a semi-circular plate, and the leaf-pulling rod is slidably installed inside the sleeve. A spring is fitted on the leaf-pulling rod, and the two ends of the spring are respectively connected to the front part of the leaf-pulling rod and the bottom of the sleeve. The leaf-pulling finger is an arc-shaped clamping plate, and the front part of the rear side of the leaf-pulling finger is hinged to the front section of the leaf-pulling rod. A second spring is provided between the rear part of the leaf-pulling finger and the front end of the leaf-pulling rod.

8. The adaptive lettuce leaf-picking machine with adjustable leaf-picking height according to claim 7, characterized in that, The clamping part is off-axis set on the semicircular plate, so that the clamping parts on different semicircular plates are laterally misaligned, so as to realize the misaligned distribution of the four leaf-picking fingers, and the four leaf-picking fingers clamp the lettuce close to each other.

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