A device for harvesting and bundling leaves of a lettuce plant

Abstract

The application provides a lettuce leaf removal harvesting and bundling device, and relates to the technical field of mechanical equipment. The device comprises a positioning assembly, a leaf removal assembly, a cutting assembly, a guiding and supporting assembly, a transmission assembly, a collecting assembly, a bundling assembly, a walking driving assembly and a turning assembly. The positioning assembly comprises a preset number of guide plates for positioning the lettuce. The leaf removal assembly comprises a floating leaf removal knife driven by a conveyor belt knife holder mechanism and a push rod mechanism for performing leaf removal operation. The cutting assembly comprises a rotary cutter for cutting the root of the lettuce. The guiding and supporting assembly comprises a multi-claw gear wheel set for guiding the transmission of the lettuce. The transmission assembly comprises a transmission conveyor belt for collecting the lettuce in a flow. The collecting assembly comprises a collecting basket for collecting the lettuce. The bundling assembly is used for bundling the collected lettuce. The walking driving assembly is used for performing walking movement. The turning assembly is used for performing turning movement. The application can solve the technical problem of low efficiency of harvesting lettuce in the prior art due to the fact that the lettuce is mostly harvested manually, and achieve the technical effect of improving the efficiency of harvesting lettuce.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mechanical equipment, in particular to a lettuce leaf removal harvesting and bundling device. BACKGROUND

[0002] Lettuce is usually planted in rows. At present, the existing technology mostly adopts manual harvesting of lettuce. After harvesting, the lettuce also needs to be processed by manual operation. However, the efficiency of manual harvesting and post-harvest processing is low. Therefore, there is a need for a device to improve the efficiency of lettuce harvesting.

[0003] In summary, the existing technology has the technical problem of low efficiency of harvesting lettuce due to mostly manual harvesting of lettuce. SUMMARY

[0004] The purpose of the present application is to provide a lettuce leaf removal harvesting and bundling device to solve the technical problem of low efficiency of harvesting lettuce due to mostly manual harvesting of lettuce in the existing technology.

[0005] In view of the above problems, the present application provides a lettuce leaf removal harvesting and bundling device.

[0006] The present application provides a lettuce leaf removal harvesting and bundling device, wherein the device comprises: a positioning assembly comprising a predetermined number of guide plates, the guide plates being arranged at the bottom of the front end of the rack near the ground, and the guide plates being used for positioning lettuce; a leaf removal assembly comprising a conveyor belt knife holder mechanism and a leaf removal knife push rod mechanism, the floating leaf removal knife being driven by the conveyor belt knife holder mechanism to perform leaf removal operation under the action of the push rod mechanism; a cutting assembly comprising K rotary cutters, the K rotary cutters being used for cutting the roots of lettuce, K being a positive integer greater than 1; a guiding and supporting assembly comprising a multi-claw gear wheel set, the multi-claw gear wheel set being a passive gear wheel, and the multi-claw gear wheel set being used for guiding the transmission of lettuce; a transmission assembly comprising a transmission conveyor belt, the transmission conveyor belt being used for collecting the lettuce guided by the guiding and supporting assembly; a collection assembly comprising a collection basket, the collection basket being used for collecting a predetermined number of lettuces after leaf removal and root cutting; a bundling assembly comprising a bundling basket and a bundling basket associated mechanism, the bundling assembly being used for bundling the collected predetermined number of lettuces; a walking driving assembly being used for performing walking motion; a steering assembly comprising a plurality of steering mechanisms, the steering assembly being used for performing steering motion.

[0007] One or more technical solutions provided in the present application have at least the following technical effects or advantages:

[0008] By positioning assembly, the positioning assembly includes a preset number of drainage plates, the drainage plates are arranged at the bottom of the front end of the rack, and the drainage plates are used for positioning lettuce; The leaf stripping assembly includes a conveyor belt knife holder mechanism and a push rod mechanism, the floating leaf stripping knife is driven by the conveyor belt knife holder mechanism, and the leaf stripping operation is performed under the action of the push rod mechanism; The cutting assembly includes K rotary cutters, the K rotary cutters are used for cutting the root of lettuce, and K is a positive integer greater than 1; The guiding and supporting assembly includes a multi-claw gear wheel set, the multi-claw gear wheel set is a passive gear wheel, and the multi-claw gear wheel set is used for guiding the transmission of lettuce; The transmission assembly includes a transmission conveyor belt, the transmission conveyor belt is used for collecting the lettuce guided by the guiding and supporting assembly; The collection assembly includes a collection basket, the collection basket is used for collecting a predetermined number of lettuce which complete leaf stripping and root cutting; The bundling assembly includes a bundling basket and a bundling basket associated mechanism, the bundling assembly is used for bundling the collected predetermined number of lettuce; The walking driving assembly is used for executing walking motion; The steering assembly includes a plurality of steering mechanisms, the steering assembly is used for executing steering motion, so that the technical effect of improving the efficiency of lettuce harvesting is achieved.

[0009] The above description is only a summary of the technical scheme of the present application. In order to make the technical means of the present application more clear, the specific embodiments of the present application can be implemented according to the content of the description, and in order to make the above and other purposes, characteristics and advantages of the present application more obvious and easy to understand, the following specific embodiments of the present application are described. It should be understood that the contents described in this part are not intended to identify the key or important features of the embodiments of the present application, nor are they intended to limit the scope of the present application. Other features of the present application will become apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0010] In order to more clearly illustrate the technical scheme in the present application or prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only exemplary, and other drawings can be obtained by the provided drawings without creative labor for those skilled in the art.

[0011] Figure 1 It is an overall assembly schematic view of a lettuce leaf stripping and harvesting bundling device of the present application;

[0012] Figure 2 It is a positioning assembly schematic view of a lettuce leaf stripping and harvesting bundling device of the present application;

[0013] Figure 3 It is a leaf stripping assembly schematic view of a lettuce leaf stripping and harvesting bundling device of the present application;

[0014] Figure 4 A leaf detachment knife seat and a leaf detachment knife structure diagram of a lettuce leaf detachment harvesting and bundling device of the present application;

[0015] Figure 5 A push rod mechanism diagram of a lettuce leaf detachment harvesting and bundling device of the present application;

[0016] Figure 6 A cutting assembly diagram of a lettuce leaf detachment harvesting and bundling device of the present application;

[0017] Figure 7 A guiding and supporting assembly diagram of a lettuce leaf detachment harvesting and bundling device of the present application;

[0018] Figure 8 A transmission assembly diagram of a lettuce leaf detachment harvesting and bundling device of the present application;

[0019] Figure 9 A collection assembly and a bundling assembly diagram of a lettuce leaf detachment harvesting and bundling device of the present application;

[0020] Figure 10 A collection assembly diagram of a lettuce leaf detachment harvesting and bundling device of the present application;

[0021] Figure 11 A bundling assembly diagram of a lettuce leaf detachment harvesting and bundling device of the present application;

[0022] Figure 12 A bundling assembly and its side control diagram of a lettuce leaf detachment harvesting and bundling device of the present application.

[0023] Explanation of reference signs:

[0024] Positioning assembly 1-0-0, drainage plate 1-1-1, 1-1-2, leaf removal assembly 2-0-0, conveyor belt knife holder mechanism 2-1-0, leaf removal knife seat clamping groove component 2-1-1, leaf removal knife seat 2-1-1-1, return spring 2-1-1-2, floating leaf removal knife 2-1-1-3, leaf removal knife blade 2-1-1-3-1, leaf removal knife ball hinge 2-1-1-3-2, leaf removal knife plunger 2-1-1-3-3, conveyor belt component 2-1-2, integral support 2-2-1, crankshaft 2-2-2, crank slider mechanism 2-2-3, push rod mechanism 2-2-4, cutting assembly 3-0-0, rotary knife 3-1-1, 3-1-2, guiding and supporting assembly 4-0-0, multi-claw wheel group 4-1-1, 4-1-2, transmission assembly 5-0-0, transmission conveyor belt 5-1-0, collection assembly 6-0-0, collection basket 6-1-0, collection basket bottom plate 6-1-1, bundling assembly 7-0-0, external lifting frame handle 7-1-1, first lifting frame 7-1-2, second lifting frame 7-1-3, movable door 7-1-4, pressing strip 7-2-1, idler shaft 7-2-2, bundling belt shaft 7-2-3, toothed strip 7-2-4, sliding strip 7-2-5, walking drive assembly 8-0-0, steering assembly 9-0-0. DETAILED DESCRIPTION

[0025] The present application provides a lettuce leaf removal harvesting and bundling device, which solves the technical problem of low efficiency in harvesting lettuce due to the fact that manual harvesting is mostly used in the prior art. The technical effect of improving the efficiency of lettuce harvesting is achieved.

[0026] The technical solutions in the present application will be described clearly and completely below with reference to the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. It should be understood that the present application is not limited by the example embodiments described herein. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application. In addition, it should be noted that, for the convenience of description, only parts related to the present application are shown in the drawings, rather than all parts.

[0027] Embodiment one

[0028] Please refer to the accompanying Figure 1 The present application provides a lettuce leaf removal harvesting and bundling device, which specifically comprises:

[0029] The positioning assembly 1-0-0 comprises a predetermined number of drainage plates 1-1-1, 1-1-2, which are arranged at the most front end of the bottom near the ground part of the frame, and are used for positioning lettuce.

[0030] Specifically, as shown in Figure 2 The positioning assembly 1-0-0 includes a preset number of drainage plates 1-1-1, 1-1-2. Preferably, the preset number is 2, and the drainage plates 1-1-1, 1-1-2 are arc-shaped drainage plates 1-1-1, 1-1-2. Among them, the drainage plates 1-1-1, 1-1-2 are arranged at the bottom of the front end of the rack near the ground. The positioning assembly 1-0-0 helps the operator to visually align the asparagus lettuce to be harvested, and realizes the positioning of the asparagus lettuce. The rack is the main frame of the asparagus lettuce leaf removal harvesting and bundling device.

[0031] The leaf removal assembly 2-0-0 includes a conveyor belt knife holder mechanism 2-1-0, a floating leaf removal knife 2-1-1-3, and a push rod mechanism 2-2-4. The floating leaf removal knife 2-1-1-3 is driven by the conveyor belt knife holder mechanism 2-1-0 to perform leaf removal operation under the action of the push rod mechanism 2-2-4.

[0032] Specifically, as shown in Figure 3 , 4 , 5, the leaf removal assembly 2-0-0 includes a conveyor belt knife holder mechanism 2-1-0 and a leaf removal knife push rod 2-2-4 mechanism 2-2-0. When the rack is horizontally pushed forward, the leaf removal knife seat 2-1-1-1 is pushed by the push rod mechanism 2-2-4 to perform leaf removal operation. Among them, the leaf removal knife seat 2-1-1-1 is pushed by the constituent assembly of the leaf removal knife push rod 2-2-4 mechanism 2-2-0 to drive the leaf removal knife 2-1-1-3 to cut downward along the external contour of the asparagus lettuce plant, and complete the separation of the old leaves of the asparagus lettuce.

[0033] The cutting assembly 3-0-0 includes K rotary cutters 3-1-1, 3-1-2, which are used to cut off the roots of asparagus lettuce, and K is a positive integer greater than 1.

[0034] Specifically, as shown in Figure 6 The cutting assembly 3-0-0 includes K rotary cutters 3-1-1, 3-1-2, and K is a positive integer greater than 1. Preferably, the rotary cutters 3-1-1, 3-1-2 are disc-shaped cutting discs. K rotary cutters 3-1-1, 3-1-2 are used to cut off the roots of asparagus lettuce at a certain height from the ground, so that the asparagus lettuce plant that has completed leaf removal is separated from the soil in the field. Preferably, K is 2.

[0035] The guiding and supporting assembly 4-0-0 includes a multi-claw wheel set 4-1-1, 4-1-2, which is a passive wheel, and is used to guide the transmission of asparagus lettuce.

[0036] Specifically, as shown in Figure 7 The guiding and supporting assembly 4-0-0 includes a plurality of pawl groups 4-1-1, 4-1-2 installed on the device and located at the rear end of the floating leaf-removing knife 2-1-1-3. The plurality of pawl groups 4-1-1, 4-1-2 are passive pawls, i.e., the pawls are not powered. When the device is pushed forward, the plurality of pawl groups 4-1-1, 4-1-2 touch the leaf-removed lettuce plants and rotate under the reaction force of the lettuce plants. When the next group of pawl groups in the plurality of pawl groups 4-1-1, 4-1-2 turns back to touch the lettuce plants, the lettuce plants have been root-cut. The upper part of the root-cut lettuce is pushed backward by the pawl groups, and the lower part of the root-cut lettuce is pushed forward by the rear beam of the cutting disc. The upper and lower parts of the lettuce plants are subjected to opposite pushing forces, thereby forming a torque that causes the root-cut lettuce to lie down on the conveying belt of the lettuce leaf-removing harvesting device.

[0037] The conveying assembly 5-0-0 includes a conveying belt 5-1-0 for conveying the lettuce guided by the guiding and supporting assembly 4-0-0.

[0038] Specifically, as shown in Figure 8 The conveying assembly 5-0-0 includes a conveying belt 5-1-0 for conveying the lettuce guided by the guiding and supporting assembly 4-0-0 to the collecting assembly 6-0-0 at the rear of the device.

[0039] The collecting assembly 6-0-0 includes a collecting basket 6-1-0 for collecting a predetermined number of lettuce plants that have completed leaf-removing and root-cutting.

[0040] Specifically, as shown in Figure 10 The collecting assembly 6-0-0 includes a collecting basket 6-1-0 for collecting the lettuce plants that have completed leaf-removing and root-cutting and are conveyed by the conveying assembly 5-0-0.

[0041] The bundling assembly 7-0-0 includes a bundling basket and a bundling basket association mechanism for bundling the predetermined number of collected lettuce plants.

[0042] Specifically, as shown in Figure 9 , 11As shown in FIGS. 12, the bundling assembly 7-0-0 includes a bundling basket and a bundling basket associated mechanism, and is used for bundling the collected predetermined number of lettuce. After the bundling is completed through the rotation movement of the bundling assembly 7-0-0, the bundled lettuce is taken out by opening the bundling basket, and through the mutual movement of the bundling basket associated mechanism, the bundling basket associated mechanism spreads the bundling tape on the bundling basket. When the collected lettuce falls in, the bundling tape is pressed below and generates tension to increase the friction with the lettuce, so that the subsequent bundling of the lettuce can be smoothly performed.

[0043] The walking driving assembly 8-0-0 is used for performing the walking movement.

[0044] Specifically, the walking driving assembly 8-0-0 is installed below the frame and is used for performing the walking movement of the device.

[0045] The turning assembly 9-0-0 includes a plurality of turning mechanisms and is used for performing the turning movement.

[0046] Specifically, the turning assembly 9-0-0 is used for performing the turning movement of the device. The turning assembly 9-0-0 includes a plurality of turning mechanisms and can flexibly and accurately turn during the operation.

[0047] The lettuce leaf-removing harvesting and bundling device can improve the harvesting efficiency of the lettuce.

[0048] Further, the conveyor belt knife holder mechanism 2-1-0 is arranged at the front end vertical horizontal plane of the frame, and includes:

[0049] The conveyor belt component 2-1-2 includes a conveyor belt.

[0050] The leaf-removing knife seat clamping groove component 2-1-1 includes M leaf-removing knife seat clamping grooves arranged in a plurality of vertical directions of the conveyor belt, and M is a positive integer greater than 1.

[0051] Specifically, the conveyor belt knife holder mechanism 2-1-0 is arranged at the front end vertical horizontal plane of the frame.

[0052] Further, the conveyor belt knife holder mechanism 2-1-0 includes the conveyor belt component 2-1-2. The conveyor belt component 2-1-2 includes a conveyor belt symmetrically arranged on both sides of the conveyor belt knife holder. Through the rotation of the conveyor belt, the leaf-removing knife seat 2-1-1-1 is pushed by the push rod mechanism 2-2-4 to perform the leaf-removing operation.

[0053] Further, the conveyor knife holder mechanism 2-1-0 comprises a leaf-removing knife seat clamping groove component 2-1-1. The leaf-removing knife seat clamping groove component 2-1-1 comprises M leaf-removing knife seat clamping grooves arranged in multiple vertical directions of the conveyor, i.e. there are multiple leaf-removing knife seat clamping grooves arranged in multiple vertical directions on the conveyor, and M is a positive integer greater than 1.

[0054] Through rotation of the conveyor knife holder mechanism 2-1-0, the leaf-removing knife seat 2-1-1-1 is kept stationary relative to the asparagus lettuce plant, thereby performing leaf-removing operation and further improving leaf-removing efficiency.

[0055] Further, the present application also comprises:

[0056] Each of the M leaf-removing knife seat clamping grooves is embedded with a leaf-removing knife seat 2-1-1-1 and a return spring 2-1-1-2, and the leaf-removing knife seat 2-1-1-1 and the return spring 2-1-1-2 are rotatable structures.

[0057] Specifically, each of the M leaf-removing knife seat clamping grooves is embedded with a leaf-removing knife seat 2-1-1-1 and a return spring 2-1-1-2. The leaf-removing knife seat clamping groove is embedded with a leaf-removing knife seat 2-1-1-1. Preferably, the leaf-removing knife seat 2-1-1-1 is a fork-shaped leaf-removing knife seat, which can be embedded in the leaf-removing knife seat clamping groove. Under the combined action of the pushing rod mechanism 2-2-4 and the return spring 2-1-1-2, the leaf-removing knife seat 2-1-1-1 performs operation.

[0058] Through the combined operation of the leaf-removing knife seat 2-1-1-1 and the return spring 2-1-1-2 in the leaf-removing knife seat clamping groove, the leaf-removing efficiency can be improved.

[0059] Further, the leaf-removing knife seat 2-1-1-1 of the present application comprises:

[0060] A mortise and tenon mechanism embedded in the leaf-removing knife seat clamping groove, which performs reciprocating motion under the combined action of the return spring 2-1-1-2 and the pushing rod mechanism 2-2-4;

[0061] A hollow sealed space comprising multiple plunger cavities, which is encapsulated with a pressure fluid.

[0062] Specifically, the leaf-removing knife seat 2-1-1-1 comprises a mortise and tenon mechanism. One end of the leaf-removing knife seat 2-1-1-1 on the leaf-removing knife seat clamping groove is a mortise and tenon mechanism, which is embedded in the leaf-removing knife seat clamping groove. The mortise and tenon mechanism performs reciprocating motion along the vertical horizontal plane under the combined action of the pushing rod mechanism 2-2-4 and the return spring 2-1-1-2.

[0063] Further, the leaf detaching knife seat 2-1-1-1 comprises a hollow sealing space. The other end of the leaf detaching knife seat 2-1-1-1 is in the shape of a half-round fork, and the hollow forms the sealing space. The hollow sealing space is filled with pressurized fluid, and the hollow sealing space is provided with a plurality of plunger cavities for subsequent leaf detaching operations.

[0064] Through the mortise and tenon mechanism of the leaf detaching knife seat 2-1-1-1 and the hollow sealing space, the leaf detaching efficiency can be further improved.

[0065] Further, the present application also comprises:

[0066] Each of the plurality of plunger cavities is in communication with the hollow sealing space and is equipped with a floating leaf detaching knife 2-1-1-3. One end of the floating leaf detaching knife 2-1-1-3 is a leaf detaching knife plunger 2-1-1-3-3, which is used to cooperate with the plunger cavity to perform relative sealing. The floating leaf detaching knife reciprocally slides along the radial direction of the asparagus under the force comparison between the support force of the asparagus outer surface and the thrust of the pressurized fluid in the hollow sealing space.

[0067] Specifically, each of the plurality of plunger cavities is equipped with a floating leaf detaching knife 2-1-1-3. Preferably, the blade of the floating leaf detaching knife 2-1-1-3 is in the shape of a short circular arc. One end of the floating leaf detaching knife 2-1-1-3 is a leaf detaching knife plunger 2-1-1-3-3, which cooperates with the plunger cavity and slides in the plunger cavity along the radial direction of the asparagus. According to the force comparison between the support force of the asparagus outer contour acting on the floating leaf detaching knife 2-1-1-3 and the thrust of the pressurized fluid in the hollow sealing space, the floating leaf detaching knife 2-1-1-3 is controlled to extend towards the asparagus or retract into the hollow sealing space, thereby compensating for the change in the outer diameter of the asparagus and controlling the blade of the floating leaf detaching knife 2-1-1-3 to tightly adhere to the outer circular surface of the asparagus.

[0068] Through the floating leaf detaching knife 2-1-1-3 equipped in the plunger cavity for leaf detaching control, the leaf detaching efficiency can be further improved.

[0069] Further, the present application also comprises:

[0070] The blade of the floating leaf detaching knife 2-1-1-3 forms a first angle with the axis direction of the asparagus, and the closed curve formed by the blade tightly adheres to the outer surface of the asparagus plant. The blade is used to detach the asparagus leaves.

[0071] Specifically, as Figure 4As shown, one end of the floating leaf detaching knife 2-1-1-3 is a leaf detaching knife plunger 2-1-1-3-3, and the other end is a leaf detaching knife blade 2-1-1-3-1. The leaf detaching knife blade 2-1-1-3-1 is assembled with the leaf detaching knife plunger 2-1-1-3-3 through a leaf detaching knife ball hinge 2-1-1-3-2, so that the leaf detaching knife blade 2-1-1-3-1 can automatically adjust the pitch angle under pressure, thereby ensuring that the angle between the leaf detaching knife blade 2-1-1-3-1 and the outer contour surface of the asparagus remains acute.

[0072] Specifically, the blade of the floating leaf detaching knife 2-1-1-3 forms a first angle with the asparagus axis direction. Preferably, the first angle is acute. There is partial overlap between adjacent blades, so that the blade of the floating leaf detaching knife 2-1-1-3 forms a closed curve, which closely adheres to the outer surface of the asparagus plant. The blade moves along the asparagus plant axis direction for leaf detachment.

[0073] The leaf detaching operation is performed by the blade of the floating leaf detaching knife 2-1-1-3, thereby improving the leaf detaching efficiency.

[0074] Further, the present application also includes:

[0075] The push rod mechanism 2-2-4 is arranged on the frame, and the push rod mechanism 2-2-4 includes a whole bracket 2-2-1, a crank shaft 2-2-2, a crank slider mechanism 2-2-3, and a push rod 2-2-4.

[0076] Specifically, the push rod mechanism 2-2-4 is arranged on the frame, and the push rod mechanism 2-2-4 includes a whole bracket 2-2-1, a crank shaft 2-2-2, a crank slider mechanism 2-2-3, and a push rod 2-2-4. The components in the push rod mechanism 2-2-4 are driven by the conveyor knife holder mechanism 2-1-0 to perform the leaf detaching operation. The push rod mechanism 2-2-4 is a T-shaped push rod.

[0077] The leaf detaching operation is performed by the components in the push rod mechanism 2-2-4, thereby improving the leaf detaching efficiency.

[0078] Further, the present application also includes:

[0079] The collection assembly 6-0-0 further includes a collection basket bottom plate 6-1-1, which is a movable bottom plate. When the collection basket 6-1-0 collects the predetermined number of asparagus, the collection basket bottom plate 6-1-1 is detached, and the predetermined number of asparagus falls into the bundling basket.

[0080] Specifically, the collecting assembly 6-0-0 further comprises a collecting basket bottom plate 6-1-1, which is an active bottom plate that can be opened and closed. When the collecting basket 6-1-0 collects a predetermined number of lettuce, the collecting basket bottom plate 6-1-1 is detached, and the predetermined number of lettuce falls into the bundling basket directly below the collecting basket 6-1-0. The predetermined number is self-defined by those skilled in the art according to actual conditions.

[0081] The opening and closing operation of the collecting basket bottom plate 6-1-1 of the collecting assembly 6-0-0 is performed, thereby improving the collection efficiency.

[0082] Further, the bundling basket associated mechanism comprises:

[0083] A pressing strip 7-2-1 is used to press the bundle of lettuce to be bundled;

[0084] An idler shaft 7-2-2 is used to adjust the movement direction of the bundling tape;

[0085] A bundling tape shaft 7-2-3 is installed on the top side of the bundling basket;

[0086] A toothed cutter strip 7-2-4 is used to cut and fix the bundling tape;

[0087] A sliding strip 7-2-5 is used to push the bundling tape to the toothed cutter strip 7-2-4 and slide back to the original position after the bundling tape is laid.

[0088] Specifically, the bundling basket associated mechanism comprises a pressing strip 7-2-1, an idler shaft 7-2-2, a bundling tape shaft 7-2-3, a toothed cutter strip 7-2-4, and a sliding strip 7-2-5. The pressing strip 7-2-1 is used to press the bundle of lettuce to be bundled. The bundle of lettuce is the predetermined number of collected lettuce. The idler shaft 7-2-2 is used to adjust the movement direction of the bundling tape. The bundling tape shaft 7-2-3 is installed on the top side of the bundling basket. The bundling tape is used to bundle the lettuce. The toothed cutter strip 7-2-4 is used to cut and fix the end of the bundling tape, so that the bundling tape is stretched under the tension of the idler shaft 7-2-2, the bundling tape shaft 7-2-3, and the toothed cutter strip 7-2-4, and the laying is realized. The sliding strip 7-2-5 is used to push the bundled lettuce to the toothed cutter strip 7-2-4 to cut and fix the new bundling tape head. Preferably, the sliding strip 7-2-5 pushes the bundling tape to move horizontally to complete the laying.

[0089] The bundling operation of the bundle of lettuce is performed by the bundling basket associated mechanism, thereby improving the bundling efficiency of the lettuce.

[0090] Further, the bundling basket comprises:

[0091] A first lifting frame 7-1-2 is installed at the front end of the bundling basket, and is used to collect the lettuce roots;

[0092] A second lifting frame 7-1-3 is installed at the rear end of the bundling basket, and is used to collect the lettuce heads. The first lifting frame 7-1-2 and the second lifting frame 7-1-3 have different radii of curvature;

[0093] An external lifting frame handle 7-1-1 is rigidly connected to the second lifting frame 7-1-3 through a hinge. The bundling of the lettuce stack is performed by shaking the external lifting frame handle 7-1-1.

[0094] A movable door 7-1-4 is located on the side of the bundling basket, and is used to take out the bundled lettuce stack.

[0095] Specifically, the bundling basket comprises the first lifting frame 7-1-2, the second lifting frame 7-1-3, the external lifting frame handle 7-1-1, and the movable door 7-1-4.

[0096] Further, the first lifting frame 7-1-2 and the second lifting frame 7-1-3 have different radii of curvature. Preferably, the first lifting frame 7-1-2 and the second lifting frame 7-1-3 are both semicircular lifting frames, and are coaxially arranged, but the first lifting frame 7-1-2 and the second lifting frame 7-1-3 are not equal in diameter. Preferably, the radius of the first lifting frame 7-1-2 is greater than that of the second lifting frame 7-1-3. The first lifting frame 7-1-2 is installed at the front end of the bundling basket, and is used to collect the lettuce roots. The second lifting frame 7-1-3 is installed at the rear end of the bundling basket, and is used to collect the lettuce heads.

[0097] Further, the second lifting frame 7-1-3 is rigidly connected to an external lifting frame handle 7-1-1 installed on the outside of the bundling basket through a hinge. After the collection of the lettuce into the first lifting frame 7-1-2 and the second lifting frame 7-1-3, the external lifting frame handle 7-1-1 is operated to make the external lifting frame handle 7-1-1 and the first lifting frame 7-1-2 and the second lifting frame 7-1-3 form a closed curve, respectively. Shaking the external lifting frame handle 7-1-1 makes the lettuce stack falling into the bundling basket rotate around the axis of the first lifting frame 7-1-2 and the second lifting frame 7-1-3 together with the first lifting frame 7-1-2 and the second lifting frame 7-1-3 and the bundling belt, thereby realizing the bundling of the lettuce stack. The side of the bundling basket is a movable door 7-1-4. Preferably, the movable door 7-1-4 is located on the right side of the bundling basket. After the completion of the bundling of the lettuce stack, the bundled lettuce stack is taken out by opening the movable door 7-1-4.

[0098] The bundle of the lettuce is stacked by the assembly of the bundling basket, thereby improving the bundling efficiency.

[0099] In summary, the lettuce leaf removal harvesting and bundling device provided by the application has the following technical effects:

[0100] By means of the positioning assembly, the positioning assembly includes a preset number of drainage plates, the drainage plates are arranged at the bottom of the front end of the rack, and the drainage plates are used for positioning the lettuce; the leaf removal assembly includes a conveyor belt knife holder mechanism and a push rod mechanism, the floating leaf removal knife is driven by the conveyor belt knife holder mechanism to execute the leaf removal operation under the action of the push rod mechanism; the cutting assembly includes K rotary cutters, the K rotary cutters are used for cutting the root of the lettuce, and K is a positive integer greater than 1; the guiding and supporting assembly includes a multi-claw gear wheel set, the multi-claw gear wheel set is a passive gear wheel, and the multi-claw gear wheel set is used for guiding the transmission of the lettuce; the transmission assembly includes a transmission conveyor belt, the transmission conveyor belt is used for collecting the lettuce guided by the guiding and supporting assembly; the collection assembly includes a collection basket, the collection basket is used for collecting a predetermined number of lettuces that have completed leaf removal and root cutting; the bundling assembly includes a bundling basket and a bundling basket association mechanism, the bundling assembly is used for bundling the collected lettuces; the walking driving assembly is used for executing walking motion; the turning assembly includes a plurality of turning mechanisms, the turning assembly is used for executing turning motion, thereby improving the lettuce harvesting efficiency.

[0101] The above description of disclosed embodiments allows a person skilled in the art to implement or use the application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the application. Therefore, the application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

[0102] Obviously, those skilled in the art can make various modifications and variations to the application without departing from the spirit and scope of the application. Thus, if these modifications and variations of the application fall within the scope of the application and its equivalents, the application also intends to include these modifications and variations.

Claims

1. A device for harvesting and tying bundles of leaves of a lettuce plant, characterized in that, The lettuce leaf removal harvesting and bundling device comprises: a positioning assembly comprising a preset number of guide plates arranged at the bottom of the front end of the frame, which are used for positioning the lettuce; a leaf removal assembly comprising a conveyor belt knife holder mechanism and an auxiliary leaf removal knife push rod mechanism, which are used for leaf removal; a cutting assembly comprising K rotary knives for cutting the roots of the lettuce, K being a positive integer greater than 1; a guiding and supporting assembly comprising a multi-claw gear wheel set, which is a passive gear wheel, and is used for guiding the transmission of the lettuce; a transmission assembly comprising a transmission conveyor belt for collecting the lettuce in the guiding and supporting assembly; a collection assembly comprising a collection basket for collecting the lettuce after leaf removal and root cutting; a bundling assembly comprising a bundling basket and a bundling basket associated mechanism, which is used for collecting a predetermined number of lettuces for bundling; a walking driving assembly for performing walking movement; a steering assembly comprising a plurality of steering mechanisms for performing steering movement; the conveyor belt knife holder mechanism is arranged at the front end vertical plane of the frame, and comprises: a conveyor belt component comprising a conveyor belt; a leaf removal knife seat clamping groove component comprising M leaf removal knife seat clamping grooves arranged in the vertical direction of the conveyor belt, M being a positive integer greater than 1; in each leaf removal knife seat clamping groove, a leaf removal knife seat and a return spring are embedded, and the leaf removal knife seat and the return spring are rotatable structures; the leaf removal knife seat comprises: a mortise and tenon mechanism embedded in the leaf removal knife seat clamping groove, which performs reciprocating motion under the action of the return spring; a hollow sealed oil chamber space comprising a plurality of square grooves, which is encapsulated with pressure fluid.

2. The lettuce unheading harvesting and bundling apparatus of claim 1 wherein, In each square groove, a leaf removal knife is assembled, one end of which is a square tenon, which is used to cooperate with the square groove to perform radial sliding.

3. The lettuce unheading harvesting and bundling apparatus of claim 2 wherein, The cutting edge of the leaf removal knife forms a closed curve that closely adheres to the outer surface of the lettuce plant, and is used to separate the lettuce leaves.

4. The lettuce unheading harvesting and bundling apparatus of claim 1 wherein, The auxiliary leaf removal knife push rod mechanism is arranged on the frame, and comprises an overall support, a crank shaft, a crank slider mechanism and a push rod.

5. The lettuce unheading harvesting and bundling apparatus of claim 1 wherein, The collection assembly further comprises a collection basket bottom plate, which is a movable bottom plate. When the collection basket collects the predetermined number of lettuces, the collection basket bottom plate is detached, and the predetermined number of lettuces are dropped into the bundling basket.

6. The lettuce unheading harvesting and bundling apparatus of claim 1 wherein, The bundling basket associated mechanism comprises: a pressing strip for pressing the lettuces to be bundled; a bundling belt shaft installed at the top side of the bundling basket; A drop shaft for adjusting the direction of movement of the strapping; A toothed bar for cutting and fixing the strapping; A sliding bar for pushing the strapping to the toothed bar.

7. The lettuce unheading harvesting and bundling apparatus of claim 1 wherein, The strapping basket comprises: A first lifting frame installed at the front end of the strapping basket, for collecting the base of the lettuce; A second lifting frame installed at the rear end of the strapping basket, for collecting the head of the lettuce, the first lifting frame and the second lifting frame having different radii of curvature; An external lifting frame handle rigidly connected to the second lifting frame by a hinge, for performing the stacking and strapping of the lettuce by shaking the external lifting frame handle; A movable door located at the side of the strapping basket, for taking out the stacked and strapped lettuce.

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