Triangular bisection drawing type safflower picking head for picking safflower by simulating hands

Abstract

The triangular bisection drawing type safflower picking head comprises an installation frame and a shell, the shell is fixedly arranged on the installation frame, the shell is in a hollow cylinder shape, an upper cover is arranged at one end of the shell, the triangular bisection drawing type safflower picking head is characterized in that an air pipe opening is formed in the shell, a groove type cam, a track fixing disc and a cutter are sequentially arranged below the upper cover, and the groove type cam is connected with the track fixing disc. A cam contour groove is formed in the surface of the groove type cam, a dovetail groove is formed in the track fixing disc, the cutter is arranged on the cutter rest, the cutter rest is perpendicular to the track fixing disc, the cutter is arranged below the track fixing disc, a sliding block capable of being embedded in the dovetail groove and sliding is arranged on the cutter rest, and the sliding block is arranged on the track fixing disc. The sliding block on the tool rest is embedded in the dovetail groove, the tool rest above the track fixing disc can be embedded in the cam contour groove, the groove type cam rotates and can drive the tool rest to do reciprocating motion in the dovetail groove of the track fixing disc with the sliding block as a support, and the motion direction is the radial direction of the track fixing disc.

Description

Technical Field

[0001] The utility model belongs to the research field of agricultural mechanized picking, and specifically relates to a triangular cutting and pulling safflower picking head which imitates human hand picking of safflower. Background Art

[0002] Safflower, also known as red and blue flower or thorny safflower, is an important economic crop, widely used in medicine, food and textile industries. With the deepening of research, safflower has multiple effects such as anti-tumor, neuroprotection, anti-inflammatory and analgesia, and immunomodulation, providing indispensable pharmaceutical value for human life and health. In addition, with the rising labor costs, the research of automated picking equipment is of great significance to reducing production costs and improving economic benefits. Although some mechanized safflower silk picking technologies have been proposed, most of them are still in the experimental stage and have not yet been applied to production on a large scale.

[0003] Traditional safflower picking mainly relies on manual operation, which is labor-intensive, inefficient, and easily affected by weather and seasonal labor shortages. Based on this, the utility model proposes a triangular cut-pull safflower picking head that imitates manual safflower picking. The safflower picking head can effectively solve the current problems of high labor intensity and low efficiency in safflower picking. Summary of the invention

[0004] In view of the above-mentioned problems existing in the background technology, the utility model designs a triangular cutting and pulling safflower picking head that imitates human hand picking of safflower, which realizes the picking and collection of safflower filaments through a design method combining mechanical cutting, pulling and air suction, and solves the problems of high labor intensity, low picking efficiency and non-mechanized picking of safflower filaments due to manual harvesting.

[0005] In order to achieve the above object, the technical solution of the utility model is as follows:

[0006] The utility model discloses a triangular cutting and pulling safflower picking head for imitating human hands to pick safflower, comprising a grooved cam (8), a track fixing plate (4), a slide block (9), a knife holder, a cutter, a housing (1), an upper cover (7), a stepping motor (6), a mounting frame (5), etc. The grooved cam (8) is mounted on the upper side of the housing (1), the track fixing plate (4) is mounted on the lower side of the housing (1), the slide block (9) is mounted in the middle of the housing (1), there are three knife holders, which are respectively mounted on the lower side of the housing (1), the cutter is mounted on the lower side of the knife holder, each knife holder is mounted with a group of cutters, and the mounting frame (5) is mounted on the lower side of the housing (1).

[0007] The slide block (9) is connected to the grooved cam (8) through the dovetail groove (16) in the track fixing plate (4), driving the tool holder to move forward and backward along the direction of the dovetail groove (16), and finally driving the cutter to move along the triangular cutting type centering. The tool holder is connected to the slide block (9) by threads, and the lower end surface is stepped and provided with two threaded holes for staggered installation of the cutter, and the upper end surface is provided with a chamfer to limit the rotation of the tool holder.

[0008] The housing (1) is connected to the mounting frame (5) by bolts. The main body is a hollow cylinder. The upper end surface is provided with three threaded holes for mounting the upper cover (7). The lower side is used to mount the mounting frame (5). The inner side is provided with three threaded holes for mounting the track fixing plate (4). The side is provided with an air duct opening (12) for mounting the negative pressure air duct. The upper cover (7) is connected to the housing (1) by bolts. The lower end surface is provided with a groove slightly smaller than the diameter of the slot cam (8) for limiting the up and down swing of the slot cam (8). The upper end surface is provided with three through threaded holes for connecting to the housing (1). Four threaded holes are provided in the middle for connecting to the stepper motor (6). The middle is hollowed out for the motor shaft to penetrate. The slider (9) is used to connect to the slot cam (8) and limit the movement of the tool holder through the dovetail groove (16). The upper part is a pin shaft that cooperates with the slot cam (8). The middle is a raised dovetail. The lower part is a stud that connects to the tool holder.

[0009] The cam profile groove (13) of the grooved cam (8) presents a rotationally symmetrical figure with a rotation angle of 120 degrees. The transmission shaft hole (14) on the grooved cam (8) is connected to the output shaft of the stepper motor (6). The track fixing plate (4) is connected to the housing (1) by bolts, and three sets of dovetail grooves (16) are provided inside, which cooperate with the slider (9) so that the tool holder can only move forward and backward along the dovetail grooves (16). The lower end surface is designed with a chamfer to form a moving pair with the tool holder to limit the rotation of the tool holder. The upper end surface is designed with a mounting concave platform (17) and is fixed to the housing (1) by bolts. The cutter is divided into a tool A (11) and a tool B (10), and each tool is connected to the tool holder by two bolts. The tool A (11) is provided with a lateral blade, which exerts a concentric pressure on the safflower filaments and cuts them, and is also the main load-bearing part for pulling the safflower filaments. The tool B (10) is provided with an anti-collision cutout, which exerts pressure on the safflower filaments along the cutout direction during the cutting process with the tool A (11), thereby further cutting the filaments. The mounting frame (5) is used to connect the mechanical arm with the housing (1), has an L-shaped appearance, an arc-shaped horizontal end face, and is provided with four threaded holes on the side for connection with the mechanical arm.

[0010] The working principle of the utility model is as follows: the grooved cam (8) is driven by the stepper motor (6) to rotate quantitatively, driving the slider (9) to slide along the dovetail groove (16) in the track fixing plate (4), driving the knife holder to move in the center, and finally realizing the triangular cutting of the cutter, the cutting of the cutter A (11) and the cutter B (10) to realize the cutting of the safflower, and the movement trajectories of the three knife holders present a triangular cutting shape. After the cutter cuts, the mechanical arm drives the picking head to move upward as a whole, pulls the uncut safflower, and further harvests it. The harvested safflower silk is collected through the negative pressure air duct through the negative pressure air duct through the negative pressure at the air duct opening (12), and the stepper motor (6) drives the grooved cam (8) to rotate quantitatively again, driving the slider (9) to slide along the dovetail groove (16) in the track fixing plate (4), driving the cutters to separate from each other, and the picking of the silk of one safflower plant is completed. The present design uses a triangular cut structure, so theoretically the present invention can pick safflowers with a maximum center positioning offset radius of 22.4 mm, and can pick all filaments within a radius of 22.4 mm at the same positioning point.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The utility model has a scientific and reasonable structural design, is economical and durable, and is easy to maintain and operate. The tool A (11) is provided with a forward blade and a side blade, and can well complete the picking operation of safflower with low positioning accuracy. The hollow cylindrical shell design is adopted, and the upper end is closed, and the negative pressure air duct realizes efficient collection of flower filaments. The design can adopt visual positioning to realize efficient harvesting, save manpower and material resources, and realize intelligent harvesting. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a three-dimensional structural schematic diagram I of the utility model.

[0014] Figure 2 This is a three-dimensional structural schematic diagram II of the utility model.

[0015] Figure 3 It is a structural schematic diagram of the groove type cam of the utility model.

[0016] Figure 4 It is a structural schematic diagram of the track fixing disk of the utility model.

[0017] Figure 5 This is a three-dimensional structural schematic diagram III of the utility model.

[0018] Figure 6 It is a schematic diagram of a tool B of the present utility model.

[0019] Figure 7 It is a schematic diagram of a tool A of the present utility model.

[0020] Figure 8It is a schematic diagram of the picking area of ​​the utility model.

[0021] As shown in the figure: 1 is the shell, 2 is the cutter, 3 is the tool holder, 4 is the track fixing plate, 5 is the mounting frame, 6 is the stepping motor, 7 is the upper cover, 8 is the slotted cam, 9 is the slider, 10 is the tool B, 11 is the tool A, 12 is the air duct opening, 13 is the cam profile groove, 14 is the transmission shaft hole, 15 is the picking area, 16 is the dovetail groove, and 17 is the mounting recess. DETAILED DESCRIPTION

[0022] The above contents of the utility model are further described in detail below through embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example 1: Reference Figures 1 to 8 , is a schematic diagram of the structure of Example 1 of the utility model. This embodiment discloses a triangular cutting and pulling safflower picking head imitating human hand picking safflower, including a mounting frame 5 and a shell 1. The shell 1 is fixedly arranged on the mounting frame 5. The shell is a hollow cylinder, and one end of the shell is provided with an upper cover 7. It is characterized in that: the shell 1 is provided with an air duct port 12, and a groove cam 8, a track fixing disk 4 and a cutter are arranged in sequence below the upper cover 7. The surface of the groove cam 8 is provided with a cam profile groove 13, and the track fixing disk 4 is provided with a dovetail groove 16.

[0024] The cutter is arranged on the tool holder 3, and the tool holder 3 is arranged vertically with the track fixing disk 4. The cutter is arranged below the track fixing disk 4. The tool holder 3 is provided with a slider 9 which can be embedded in the dovetail groove 16 and slide. The tool holder 3 above the track fixing disk 4 can be embedded in the cam profile groove 13. The grooved cam 8 rotates to drive the tool holder 3 to do reciprocating motion on the track fixing disk 4, and the motion direction is the radial direction of the track fixing disk; the grooved cam 8 is driven to rotate by the stepping motor 6; that is, the slider on the tool holder is embedded in the dovetail groove, and the tool holder above the track fixing disk can be embedded in the cam profile groove. The grooved cam rotates to drive the tool holder to do reciprocating motion in the dovetail groove of the track fixing disk with the slider as support, and the motion direction is the radial direction of the track fixing disk.

[0025] The tool holder 3 is L-shaped, and the top surface of the tool holder 3 is chamfered, which cooperates with the track fixing plate 4, and is connected to the cutter at the bottom;

[0026] The cutters are provided in three groups, including a cutter A11 and a cutter B10 . The cutters A11 and B10 are arranged at 120°, and the angle between the three groups of cutters is 120°. The track fixing plate 4 includes three groups of dovetail grooves 16 .

[0027] The cutter A11 is provided with an anti-collision cutting angle, and the cutter holder 3 drives the cutter to perform a triangular cutting and centering movement;

[0028] The mounting frame 5 is L-shaped, and the mounting end surface is arc-shaped. The mounting end refers to the part used for mounting the housing 1.

[0029] like Figure 1 As shown, it includes a slotted cam 8, a track fixing plate 4, a slider 9, a tool holder 3, a cutter 2, a housing 1, an upper cover 7, a stepper motor 6, and a mounting frame 5. The slotted cam 8 is mounted on the upper side of the housing 1, the track fixing plate 4 is mounted on the lower side of the housing 1, the slider 9 is mounted in the middle of the housing 1, there are three tool holders 3, which are respectively mounted on the lower side of the housing 1, the cutter 2 is mounted on the lower side of the tool holder 3, each tool holder 3 is mounted with a group of cutters 2, and the mounting frame 5 is mounted on the lower side of the housing 1.

[0030] like Figure 2 As shown, the slider 9 is connected to the slot cam 8 through the dovetail groove 16 in the track fixing plate 4, driving the tool holder 3 to move forward and backward along the direction of the dovetail groove 16, and finally driving the cutter 2 to move along the triangular cutting type centering. The tool holder 3 is connected to the slider 9 by threading, and the lower end surface is stepped and provided with two threaded holes for dislocation installation of the cutter 2, and the upper end surface is provided with a chamfer to limit the rotation of the tool holder 3. The housing 1 is connected to the mounting frame 5 by bolts, and the main body is a hollow cylinder, and the upper end surface is provided with three threaded holes for installing the upper cover 7, the lower side is used to install the mounting frame 5, and the inner side is provided with three threaded holes for installing the track fixing plate 4, and the side is provided with an air duct port 12 for installing the negative pressure air duct. The upper cover 7 is connected to the housing 1 by bolts, and the lower end surface is provided with a groove slightly smaller than the diameter of the slot cam 8, which is used to limit the up and down swing of the slot cam 8, and the upper end surface is provided with three through threaded holes for connecting the housing 1, and the middle is provided with four threaded holes for connecting the stepping motor 6, and the middle is hollowed out for the penetration of the motor shaft. The slider 9 is used to connect the groove cam 8 and limit the movement of the tool holder 3 through the dovetail groove 16. The upper part is a pin that cooperates with the groove cam 8, the middle is a raised dovetail, and the lower part is a stud that connects the tool holder 3.

[0031] like Figure 3 As shown, the cam profile groove 13 of the grooved cam 8 presents a rotationally symmetrical pattern with a rotation angle of 120 degrees, and the transmission shaft hole 14 on the grooved cam 8 is connected to the output shaft of the stepping motor 6.

[0032] like Figure 4As shown, the track fixing plate 4 is connected to the shell 1 by bolts, and three groups of dovetail grooves 16 are provided inside, which cooperate with the slider 9 so that the tool holder 3 can only move forward and backward along the dovetail grooves 16. The lower end surface is designed with a chamfer to form a moving pair with the tool holder 3 to limit the rotation of the tool holder 3. The upper end surface is designed with a mounting recess 17, which is connected and fixed to the shell 1 by bolts.

[0033] like Figure 5 As shown, the cutter 2 is divided into a cutter A11 and a cutter B10, and each cutter 2 is connected to the cutter holder 3 using two bolts.

[0034] like Figure 6 As shown, the tool B10 is provided with an anti-collision cutout, and in the process of cutting with the tool A11, the safflower filaments are squeezed along the cutout direction to further cut the filaments. The mounting frame 5 is used to connect the mechanical arm with the housing 1, and has an L-shaped shape, an arc-shaped horizontal end face, and four threaded holes on the side for connection with the mechanical arm.

[0035] like Figure 7 As shown, the tool A11 is provided with a lateral blade, which squeezes and cuts the safflower filaments in the center, and is also the main force-bearing part for pulling the safflower filaments.

[0036] like Figure 8 As shown, the picking range 15, the present design uses a triangular cut structure, so theoretically the present invention can pick safflower with a maximum center positioning offset radius of 22.4mm, and all filaments within a radius of 22.4mm at the same positioning point can be harvested.

[0037] The working principle of the utility model is as follows: the picking head moves to the top of the safflower, and the picking head is controlled by the mechanical arm to descend to the picking position, the grooved cam 8 is driven by the stepper motor 6 to rotate quantitatively, and the driving slider 9 slides along the dovetail groove 16 in the track fixing disk 4, driving the knife holder 3 to move toward the center, and finally realizing the triangular cutting of the cutter 2, and the cutting of the tool A11 and the tool B10 realizes the cutting of the safflower, and the movement trajectories of the three knife holders 3 present a triangular cutting type. After the cutter 2 is cut, the mechanical arm drives the picking head to move upward as a whole, pulls the uncut safflower, and further harvests it, and collects the harvested safflower filaments through the negative pressure at the air duct mouth 12 through the negative pressure air duct, and the stepper motor 6 drives the grooved cam 8 to rotate quantitatively again, drives the sliding block 9 to slide along the dovetail groove 16 in the track fixing disk 4, drives the cutters 2 to separate from each other, and the picking of the filaments of one safflower plant is completed.

[0038] The design structure of the utility model is scientific and reasonable, the user operation and maintenance are simple, the requirement for the positioning accuracy of the safflower center is low, the picking speed is fast and the efficiency is high, it provides technical support for the realization of intelligent safflower harvesting, and effectively reduces the labor intensity of flower farmers and the problem of serious loss of flower filaments.

[0039] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A triangular cut-pull type safflower picking head for imitating human hand picking of safflower, comprising a mounting frame (5) and a shell (1), wherein the shell (1) is fixedly arranged on the mounting frame (5), the shell is a hollow cylindrical shape, and an upper cover (7) is provided at one end thereof, characterized in that: The housing (1) is provided with an air duct opening (12), and a grooved cam (8), a track fixing disk (4) and a cutter are sequentially provided below the upper cover (7), the surface of the grooved cam (8) is provided with a cam profile groove (13), and the track fixing disk (4) is provided with a dovetail groove (16). The cutter is arranged on a tool holder (3), the tool holder (3) and the track fixing disk (4) are arranged vertically, the cutter is arranged below the track fixing disk (4), the tool holder (3) is provided with a slider (9) capable of being embedded in a dovetail groove (16) and sliding, the tool holder (3) above the track fixing disk (4) can be embedded in a cam profile groove (13), and the grooved cam (8) rotates to drive the tool holder (3) to perform reciprocating motion on the track fixing disk (4), and the motion direction is the radial direction of the track fixing disk.

2. The triangular cutting and pulling safflower picking head imitating human hand picking safflower as claimed in claim 1, characterized in that: The tool holder (3) is L-shaped, and the top surface of the tool holder (3) is provided with a chamfer, which cooperates with the track fixing plate (4), and is connected to the cutter at the bottom.

3. The triangular cutting and pulling safflower picking head imitating human hand picking safflower as claimed in claim 1, characterized in that: The cutters are provided in three groups, the cutters comprising a cutter A (11) and a cutter B (10), the cutters A (11) and the cutter B (10) being arranged at an angle of 120°, and the angles between the three groups of cutters are 120°, and the track fixing plate (4) comprises three groups of dovetail grooves (16).

4. The triangular cutting and pulling safflower picking head imitating human hand picking safflower as claimed in claim 3, characterized in that: The cutter A (11) is provided with an anti-collision cutting angle, and the cutter holder (3) drives the cutter to perform a triangular cutting and centering movement.

5. The triangular-cutting and pulling safflower picking head imitating human hand picking safflower as claimed in claim 1, characterized in that: The mounting frame (5) is L-shaped, and the mounting end surface is arc-shaped.

6. The triangular cut-pull safflower picking head imitating human hand picking safflower as claimed in claim 1, characterized in that: A stepping motor (6) is also provided, and the stepping motor (6) drives the grooved cam (8) to rotate.

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