Automatic cotton picking, cleaning and packaging all-in-one machine

Abstract

The invention discloses an automatic cotton picking, cleaning and packaging all-in-one machine which comprises a chassis, the front end of the chassis is connected with a cotton picking head through a suspension device, a cotton conveying channel is installed on the chassis and connected with the cotton picking head, and the cotton conveying channel is communicated with a cotton conveying fan. Seed cotton picked by the cotton picking head is conveyed into the cotton collecting box by negative pressure generated by power provided by the cotton conveying fan; the device is characterized in that a barbed nail roller is arranged at an outlet of the cotton conveying channel and can rotate in a fixed-axis mode, and an impurity filtering device is installed below the barbed nail roller; the primary impurity removal device is arranged at the top of the cotton collection box, a plurality of secondary impurity removal devices are arranged in the cotton collection box, the plurality of secondary impurity removal devices are obliquely arranged in the cotton collection box, and the cotton discharge roller is arranged above the secondary impurity removal devices and can perform fixed-axis rotation to forcibly discharge cotton; the cotton conveying belt assembly is located at the front end of the bottom of the packaging bin, the three-stage impurity removing device is installed below the cotton conveying belt assembly, and the cotton supporting frame is installed at the tail of the packaging bin.

Description

Technical Field

[0001] The invention belongs to the field of cotton picking, and in particular relates to an automatic cotton picking, cleaning and baling all-in-one machine. Background Art

[0002] With the continuous advancement of agricultural mechanization, mechanized cotton picking has become the mainstream cotton harvesting method today. However, compared with manual picking, mechanized cotton picking has a higher impurity rate, generally 12%-20%, mainly impurities such as small branches, broken cotton leaves and seed cotton shells. After the seed cotton is mechanically picked and compressed and packaged, it enters the cotton processing plant. Due to the high impurity rate, a special seed cotton cleaning machine will be used to continue to clean the impurities. However, due to the compression of the package, the adhesion between impurities such as cotton leaves, cotton stalks, and boll shells and cotton fibers increases, making subsequent cleaning more difficult. Not only is the cleaning efficiency low, time-consuming and labor-intensive, but the cost is also extremely high. Therefore, from the time the seed cotton is picked to before it is packaged, the seed cotton should be cleaned to reduce the impurity rate.

[0003] In the prior art, relevant patents have been found after searching. The Chinese utility model patent, with patent number 202321892082.6, is named "A cotton picker equipped with a seed cotton impurity removal device". This patent sets a primary impurity removal device on the top of the inner side of the cotton collecting box, and a secondary impurity removal device under the cotton conveyor belt. Both the primary impurity removal device and the secondary impurity removal device use the negative pressure of the impurity removal fan to collect impurities, thereby reducing the impurity content of the seed cotton. Although this method can reduce the impurity content of seed cotton to a certain extent, the effect is limited. Impurities on the surface of the seed cotton ball can be collected, but impurities inside the seed cotton ball cannot be collected. Summary of the invention

[0004] The purpose of the present invention is to provide an automatic cotton picking, cleaning and baling all-in-one machine, and to solve the problem of high impurity rate of seed cotton in the round die baling process after harvesting by the automatic cotton picking, cleaning and baling all-in-one machine by designing an impurity removal device in the all-in-one machine.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] An automatic cotton picking, cleaning and baling integrated machine comprises a chassis, a cotton picking head is connected to the front end of the chassis through a suspension device, a cotton conveying channel is installed on the chassis and connected to the cotton picking head, the cotton conveying channel is communicated with a cotton conveying fan, and the negative pressure generated by the power provided by the cotton conveying fan conveys the seed cotton picked by the cotton picking head to a cotton collecting box; it is characterized in that a pricking roller is arranged at the outlet of the cotton conveying channel and can rotate on a fixed axis, and a dust filtering device is installed below the pricking roller; a primary dust removing device is installed on the top of the cotton collecting box, and a secondary dust removing device is arranged in the cotton collecting box, a plurality of secondary dust removing devices are provided, and a plurality of secondary dust removing devices are obliquely arranged inside the cotton collecting box, a cotton discharging roller is installed above the secondary dust removing device and can rotate on a fixed axis to force cotton to be discharged; a cotton conveying belt assembly is located at the front end of the bottom of the baling bin, a tertiary dust removing device is installed below the cotton conveying belt assembly, and a cotton supporting rack is installed at the tail of the baling bin.

[0007] As a further technical solution, the first-level impurity removal device consists of an impurity removal fan and an arc-shaped filter plate. The impurity removal fan is arranged and installed on the top of the cotton collecting box along the width direction of the cotton picker. Each of the impurity removal fans corresponds to one of the cotton conveying channels. The arc-shaped filter plate is evenly distributed with small holes.

[0008] As a further technical solution, the upper surface of the filtering device is evenly distributed with small holes, and the inner bottom surface of the filtering device is inclined.

[0009] As a further technical solution, the secondary impurity removal device is composed of a screen, a screen frame, a vibrator, a base, a shock-absorbing spring, a rotating shaft, and a pressure sensor; the screen is fixedly mounted on the upper surface of the screen frame, and the vibrator is fixedly mounted on the lower surface of the screen frame, one on each side; the screen frame is connected to the base through a shock-absorbing spring, and both the lower surface of the screen frame and the bottom surface of the base have small cylindrical bosses inside to provide a position for the fixed installation of the shock-absorbing spring; the rotating shaft is fixedly mounted on one side of the base, and the rotating shaft is fixedly mounted on the box walls on both sides of the cotton picker through a bearing, which can drive the secondary impurity removal device to realize fixed-axis rotation; the pressure sensor is fixedly mounted inside the secondary impurity removal device, and is used to detect the pressure of the screen and the seed cotton.

[0010] As a further technical solution, the rotating shafts of the multiple secondary impurity removal devices are driven by the same motor, and the motor drives the rotating shafts of the multiple secondary impurity removal devices simultaneously through a gear transmission device.

[0011] As a further technical solution, the bottom surface of the substrate is internally inclined so that impurities can gather in one place.

[0012] As a further technical solution, the impurities collected by the filtering device and the secondary impurity removing device are connected through a hose and directly discharged out of the machine body.

[0013] As a further technical solution, the opening rollers are dispersedly installed at the bottom of the cotton collecting box, the cotton conveying belt is composed of a filtering grid, and the seed cotton loosened by the opening rollers falls onto the cotton conveying belt assembly.

[0014] As a further technical solution, the packaging device is mainly composed of a first driving roller, a second driving roller, a rocker arm, a rocker arm cylinder, a packaging belt and multiple rollers. Driven by the first driving roller and the second driving roller, the packaging belt is wrapped around each roller for circular rolling, and the rocker arm cylinder drives the rocker arm to rotate counterclockwise or clockwise.

[0015] As a further technical solution, the cotton supporting frame is installed at the tail of the baling bin, and the two fulcrums of the cotton supporting frame are respectively rotatably mounted on the chassis and the telescopic hydraulic cylinder rotatably mounted on the chassis.

[0016] The beneficial effects of the present invention are as follows:

[0017] In the automatic cotton picking, cleaning and baling integrated machine proposed by the present invention, automatic cotton picking, cleaning and baling is realized through the mutual cooperation of the cotton picking head, the cotton conveying channel, the cotton collecting box, the impurity removing device, the baling device and the cotton supporting frame, and in the impurity removing process, three-stage impurity removing is adopted. Firstly, through the first-stage impurity removing device arranged above the cotton collecting box, a fan is used to form suction to collect impurities, and the seed cotton is blocked outside by the arc filter plate, which can effectively realize the removal of impurities on the surface of the seed cotton and discharge them out of the machine body to preliminarily realize the reduction of the impurity content of the seed cotton; the impurities inside the seed cotton are turned to the surface by the squeezing and kneading action of the spiked roller, and a second-stage impurity removing device is installed inside the cotton collecting box, and the impurities of the seed cotton are further cleaned under the action of vibration. At the same time, the second-stage impurity removing device is arranged obliquely inside the cotton collecting box, so that the flow of the seed cotton in the cotton collecting box is S-shaped to increase the impurity removing path, and the impurity cleaning is more thorough. The cotton is forced to be discharged by the cotton discharge roller, and the pressure sensor is used to detect whether the seed cotton inside the cotton collection box is congested. If congestion occurs, the inclination angle of the secondary impurity removal device can be automatically adjusted to speed up the flow of seed cotton. The control of the stepper motor is realized by the controller of the cotton picker itself, and no additional controller is required. After passing through the primary impurity removal device and the secondary impurity removal device, a small amount of impurities are cleaned by the tertiary impurity removal device, making the impurity removal more thorough, further reducing the impurity rate of seed cotton, improving the utilization rate of seed cotton, saving a lot of time and manpower for cleaning seed cotton, reducing costs, and facilitating the processing and application of seed cotton in the later stage. The arrangement of the impurity removal device realizes the integration of cotton picking, cleaning and packaging, and cooperates with the control system to realize full automatic operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0019] Figure 1 This is a front view schematic diagram showing the interior of the cotton collecting box and the impurity removal device of the automatic cotton picking, cleaning and baling machine of the present invention.

[0020] Figure 2 It is a schematic structural diagram of the secondary impurity removal device of the automatic cotton picking, cleaning and baling machine of the present invention.

[0021] Figure 3 It is a schematic diagram of power transmission of the secondary impurity removal device of the automatic cotton picking, cleaning and baling machine of the present invention.

[0022] Figure 4 It is a schematic diagram of the connection between the impurity discharge hose and the secondary impurity removal device of the automatic cotton picking, cleaning and baling machine of the present invention and the impurity flow direction.

[0023] Figure 5 It is a schematic diagram of the structure of the three-stage impurity removal device of the automatic cotton picking, cleaning and baling machine of the present invention.

[0024] Figure 6 This is a flow chart of the inclination control of the secondary impurity removal device of the automatic cotton picking, cleaning and baling machine of the present invention.

[0025] Figure 7 This is a schematic diagram of the hydraulic system of the automatic cotton picking, cleaning and baling machine of the present invention.

[0026] Figures 1 to 7 Middle: 1 is the cotton picking head, 2 is the suspension device, 3 is the cab, 4 is the cotton conveying channel, 5 is the chassis, 6 is the opening roller, 7 is the cotton conveying fan, 8 is the cotton conveying belt assembly, 9 is the three-stage impurity removal device, 91 is the impurity removal fan, 92 is the impurity discharge trough, 93 is the impurity discharge pipeline, 10 is the telescopic hydraulic cylinder, 11 is the cotton supporting frame, 12 is the baling bin, 13 is the film feeding device, 14 is the baling device, 141 is the first driving roller, 142 is the baling belt, 143 is the rocker arm Cylinder, 144 is a rocker arm, 145 is a second driving roller, 15 is a cotton discharge roller, 16 is a primary impurity removal device, 161 is an arc filter plate, 162 is an impurity removal fan, 17 is a spike roller, 18 is a cotton collecting box, 19 is a filter device, 20 is a secondary impurity removal device, 201 is a base, 202 is a rotating shaft, 203 is a shock absorbing spring, 204 is a screen frame, 205 is a vibrator, 206 is a pressure sensor, 207 is a screen, and 21 is an impurity removal hose. DETAILED DESCRIPTION

[0027] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0028] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless otherwise explicitly stated in the present invention, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "include" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof;

[0029] As introduced in the background technology, there are deficiencies in the prior art. In order to solve the above technical problems, the present invention proposes an automatic cotton picking, cleaning and baling machine.

[0030] In a typical embodiment of the present invention, Figure 1 As shown, the embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0031] like Figure 1-Figure 6 As shown, the embodiment discloses an automatic cotton picking, cleaning and baling integrated machine, comprising: a chassis 5, a suspension device 2, a cotton picking head 1, a cab 3, a cotton conveying channel 4, a cotton conveying fan 7, a spike roller 17, a debris filtering device 19, a primary debris removal device 16, a cotton collecting box 18, a secondary debris removal device 20, a cotton discharge roller 15, a loosening roller 6, a cotton conveying belt assembly 8, a tertiary debris removal device 9, a baling bin 12, and a cotton supporting frame 11. The connection relationship between the various components is as follows: the cotton picking head 1 is connected to the front end of the chassis 5 through the suspension device 2, the cotton conveying channel 4 is installed on the chassis 5 and connected to the cotton picking head 1, the cotton conveying channel 4 is connected to the cotton conveying fan 7, and the cotton conveying fan 7 provides power to generate negative pressure to transport the seed cotton picked by the cotton picking head to the cotton collecting box 18; the spike roller 17 is arranged in the cotton conveying channel 4 The outlet can rotate on a fixed axis, and the impurity filtering device 19 is installed under the spike roller; the primary impurity removing device 16 is installed on the top of the cotton collecting box, and a secondary impurity removing device 20 is arranged in the cotton collecting box. A plurality of secondary impurity removing devices 20 are arranged, and a plurality of secondary impurity removing devices are arranged obliquely inside the cotton collecting box. The cotton discharging roller is installed above the secondary impurity removing device and can rotate on a fixed axis to force cotton discharging; the cotton conveying belt assembly is located at the front end of the bottom of the baling bin 12, the tertiary impurity removing device 9 is installed under the cotton conveying belt assembly 8, and the cotton supporting frame 11 is installed at the tail of the baling bin; the present invention fundamentally reduces the impurity content of seed cotton through the ingenious combination of the primary impurity removing device, the secondary impurity removing device and the tertiary impurity removing device, saves a lot of time and manpower for subsequent seed cotton cleaning, reduces costs, and is beneficial to the later processing and application of seed cotton.

[0032] Specifically, the cotton picking head 1 is installed at the front end of the chassis 5 through the suspension device 2, and the height between the cotton picking head 1 and the ground surface can be adjusted through the suspension device 2, which can protect the picking parts and reduce the missed picking rate.

[0033] The cotton conveying channel 4 is installed on the chassis 5 and connected to the cotton picking head 1. The cotton conveying channel 4 is connected to the cotton conveying fan 7. The cotton conveying fan 7 provides power to generate negative pressure to convey the seed cotton picked by the cotton picking head 1 to the cotton collecting box 18.

[0034] The pricking roller 17 is arranged at the exit of the cotton conveying channel 4, and the pricking roller 17 can rotate on a fixed axis, and the impurity filtering device 19 is installed below the pricking roller 17; the function of the pricking roller 17 is mainly to squeeze and rub the seed cotton; the upper surface of the impurity filtering device 19 is evenly distributed with small holes, which play the role of filtering impurities and blocking the seed cotton from entering, and the inner bottom surface of the impurity filtering device 19 is inclined, so that the impurities entering the impurity filtering device 19 can be gathered in one place for easy discharge.

[0035] Furthermore, the primary impurity removal device 16 is composed of an impurity removal fan 162 and an arc-shaped filter plate 161. The impurity removal fan 162 is arranged and installed on the top of the cotton collecting box 18 along the width direction of the cotton picker, and each impurity removal fan 162 corresponds to a cotton conveying channel 4. Before the seed cotton sent from the cotton conveying channel 4 falls into the cotton collecting box 18, it will be squeezed and kneaded by the spike roller 17. The impurities on the upper side of the seed cotton will be sucked into the impurity removal fan through the arc-shaped filter plate 161 due to the negative pressure suction of the impurity removal fan 162, and then collected or directly discharged from the machine body. The impurities on the lower side of the seed cotton will fall into the impurity filtering device 19, so that the impurities are separated from the seed cotton.

[0036] Furthermore, the arc filter plate 161 is evenly distributed with small holes, which can be of any shape, and impurities in the seed cotton can pass through, while the seed cotton will be blocked. Eventually, the seed cotton will fall into the cotton collecting box due to gravity, thereby playing a role in removing impurities.

[0037] Furthermore, the secondary impurity removal device 20 is arranged obliquely inside the cotton collecting box 18, so that the flow of seed cotton in the cotton collecting box 18 is S-shaped to increase the impurity removal path, and the cotton discharge roller 15 is installed above the secondary impurity removal device 20, and can rotate on a fixed axis to force cotton discharge to prevent the seed cotton from being blocked inside the cotton collecting box 18; in the present embodiment, in order to make the flow of seed cotton in the cotton collecting box 18 S-shaped, the secondary impurity removal device 20 includes three, and the three secondary impurity removal devices 20 are alternately and obliquely arranged on the inner wall of the cotton collecting box 18. Of course, it is not difficult to understand that four, five, etc. can also be set according to needs.

[0038] Specifically, Figure 2 , Figure 3As shown, each secondary impurity removal device 20 in this embodiment is composed of a screen 207, a screen frame 204, a vibrator 205, a base 201, a damping spring 203, a rotating shaft 202, and a pressure sensor 206; the screen 207 is evenly distributed with small holes, which can be of any shape, and is fixedly installed on the upper surface of the screen frame 204, and the vibrator 205 is fixedly installed on the lower surface of the screen frame 204, one on each side. The vibrator 204 can be a vibration motor or a vibration motor. The screen frame 204 is connected to the base 201 through four damping springs 203, and there are cylindrical small bosses inside the lower surface of the screen frame 204 and the bottom surface of the base 201 to provide a position for the fixed installation of the damping spring 203; a rotating shaft 202 is fixedly installed on one side of the base 201, and the rotating shaft 202 is fixedly installed on the box wall on both sides of the cotton picker through a bearing fixed axis, which can drive the secondary impurity removal device 20 to realize fixed axis rotation, and the bottom surface of the base 201 is tilted inside, so that impurities can be gathered in one place for easy discharge. The impurities collected by the secondary impurity removal device 20 are directly discharged from the machine body through a discharge hose 21. The pressure sensor 206 is fixedly installed inside the secondary impurity removal device 20 to detect the pressure between the screen 207 and the seed cotton to ensure that the seed cotton in the cotton collection box 18 is not blocked.

[0039] Furthermore, in order to adjust the inclination angle of the secondary impurity removal device 20, a gear is connected to the end of the rotating shaft 202 of the secondary impurity removal device 20, and the power branch of the stepper motor is transmitted to each secondary impurity removal device 20 through gear transmission. When the pressure detected by the pressure sensor 206 is too high, the stepper motor starts and rotates forward, increasing the inclination angle of the secondary impurity removal device 20 so that the seed cotton can flow faster in the cotton collection box 18. When the pressure detected by the pressure sensor 206 returns to normal, the stepper motor starts and reverses to the initial position until the next time the pressure detected by the pressure sensor 206 is too high. The control of the stepper motor is realized by the controller of the cotton picker itself.

[0040] like Figure 3 As shown, the three secondary impurity removal devices 20 in this embodiment are driven by the same stepper motor. Specifically, the stepper motor shaft transmits power to the stepper motor shaft output gear through a coupling, and transmits it to the first transmission gear, the second transmission gear and the third transmission gear through gear meshing respectively. The three transmission gears correspond to the rotating shaft 202 of the three secondary impurity removal devices 20. Since the rotation direction of the second transmission gear needs to be opposite to that of the first transmission gear and the third transmission gear, an idler gear needs to be installed to change the rotation direction.

[0041] Furthermore, the opening rollers 6 are dispersedly installed at the bottom of the cotton collecting box 18. Before the seed cotton is fed into the cotton feeding belt assembly 8, the opening rollers 6 can loosen the compressed and entangled seed cotton, thereby kneading the cotton. The impurities inside the seed cotton ball will come to the outside of the seed cotton ball, preparing for the third-level impurity removal.

[0042] Furthermore, the cotton conveying belt assembly 8 is located at the front end of the bottom of the baling bin 12 , and includes a cotton conveying belt, which is composed of a filtering grid. The seed cotton loosened by the opening roller 6 falls onto the cotton conveying belt assembly 8 .

[0043] Furthermore, the three-stage impurity removal device 9 is installed below the cotton conveying belt assembly 8, and the three-stage impurity removal device 9 is composed of an impurity removal fan 91, an impurity discharge groove 92 and an impurity discharge pipe 93. When the seed cotton falls onto the cotton conveying belt assembly 8 and starts to be fed from the front to the back, the impurity removal fan 91 is started to form a negative pressure suction force, and the impurities that have not been removed by the first-stage impurity removal device 16 and the second-stage impurity removal device 20 pass through the filter grid structure of the cotton conveying belt, are sucked into the air inlet of the impurity removal fan 91, and are discharged through the air outlet. The bottom of the impurity discharge groove 92 of the three-stage impurity removal device 9 is designed to be an inclined structure, and the impurity discharge pipe 93 is connected at the lowest point. The impurities discharged through the air outlet are discharged out of the machine body through the impurity discharge pipe 93.

[0044] Furthermore, the impurity removal fan 162 of the primary impurity removal device 16 has the same structure as the impurity removal fan 91 of the tertiary impurity removal device 9 .

[0045] Furthermore, the cotton conveying belt assembly 8 continuously feeds the cleaned seed cotton into the packing device 14 in the packing bin 12 to pack the seed cotton.

[0046] Furthermore, the baling device 14 in the present embodiment is mainly composed of a first driving roller 141, a second driving roller 145, a rocker arm 144, a rocker arm cylinder 143, a baling belt 142 and a plurality of rollers, and the first driving roller 141, the second driving roller 145, the rocker arm 144, the rocker arm cylinder 143, the baling belt 142 and a plurality of rollers are all installed in the baling bin; driven by the first driving roller 141 and the second driving roller 145, the baling belt 142 is wound around each roller for circular rolling, and as the seed cotton is continuously fed, the rocker arm 144 is hinged on the baling bin 12, and the rocker arm cylinder 143 detects the pressure and extends out, driving the rocker arm 144 to rotate counterclockwise, and continuously forming larger cotton bales.

[0047] Furthermore, the film feeding device 13 is located at the rear side of the packing bin 12. When packing is completed, the operator controls the film feeding device 13 to pack the cotton bales.

[0048] Furthermore, a cotton supporting rack 11 is installed at the tail end of the baling bin 12, and two fulcrums of the cotton supporting rack 11 are respectively rotatably assembled on the chassis 5 and the telescopic hydraulic cylinder 10 rotatably assembled with the chassis 5. The opening and closing of the cotton supporting rack 11 is controlled by controlling the extension and retraction of the telescopic hydraulic cylinder 10. When the seed cotton baling and coating is completed, the cotton supporting rack 11 opens and transports the baled cotton bales to the designated location.

[0049] Furthermore, the automatic cotton picking, cleaning and baling machine has a matching hydraulic system such as Figure 7As shown, and automatically controlled by the control system, the automatic operation of cotton picking, cleaning and packaging can be realized. The specific hydraulic system is described as follows:

[0050] The picking head pump is a one-way variable pump, which can adjust the displacement according to the needs of the system. The high-pressure oil flowing out of the picking head pump is divided into two parts: one part drives the fixed axis of the picking head motor to rotate, thereby ensuring the normal operation of the cotton picking head 1; the other part of the oil passes through the seat valve, the one-way valve and the diversion and collection valve to drive the extension and retraction of the picking head lifting cylinder, thereby adjusting the height of the cotton picking head 1 from the ground to ensure that the height of the cotton picking head from the ground is the appropriate cotton picking height. The picking head pump is equipped with a picking head pump replenishing pump. The oil flowing out of the picking head pump replenishing pump passes through the filter, the pressure regulating valve and the one-way valve to merge with the oil flowing out of the picking head pump to ensure that the flow requirements for the normal operation of the system can be met. At the same time, an overflow valve is provided to protect the system pressure.

[0051] The baling pump is a one-way variable pump, which can adjust the displacement according to the needs of the system. The high-pressure oil flowing out of the baling pump is divided into two parts: one part reaches the baling motor of the first drive roller and the second drive roller, thereby driving the first drive roller 141 and the second drive roller 145 to rotate respectively, ensuring that the baling belt 142 can circulate and roll; the other part of the oil drives the synchronous extension and retraction of the two rocker arm lifting cylinders through the throttle valve, the reversing valve and the seat valve, so that the rocker arm 144 can be gradually lifted with the continuous feeding of seed cotton, and finally a cotton bale of a certain size and density can be formed. When the cotton bale is formed, the rocker arm 144 can be lowered to the initial position to prepare for the next baling. The baling pump is equipped with a baling pump replenishing pump. The oil flowing out of the baling pump replenishing pump is combined with the oil flowing out of the baling pump through the filter, the pressure regulating valve and the one-way valve to ensure that the flow requirements for normal operation of the system can be met. At the same time, an overflow valve is provided to protect the system pressure.

[0052] The pressure-compensated variable pump can adjust the displacement according to the needs of the system and ensure that the pressure is stable during the working process. The oil flowing out of the pressure-compensated variable pump is divided into five parts: the first part of the oil reaches the cotton discharge roller motor through the electromagnetic proportional flow control valve, thereby driving the cotton discharge roller 15 to rotate on a fixed axis; the second part of the oil reaches the opening roller motor through the electromagnetic proportional flow control valve, thereby driving the opening roller 6 to rotate on a fixed axis; the third part of the oil reaches the cotton conveying belt assembly motor through the electromagnetic proportional flow control valve, thereby driving the cotton conveying belt assembly 8 to rotate normally; the fourth part of the oil reaches the cotton support frame telescopic cylinder through valves such as the seat valve, the one-way valve and the reversing valve, thereby driving the opening and retraction of the cotton support frame 11, so that the packaged cotton bales can be placed on the cotton support frame 11 and transported to the designated location for unloading; the fifth part of the oil reaches the film delivery device cylinder through the throttle valve, the reversing valve and the hydraulically controlled one-way valve, thereby driving the lifting and lowering of the film delivery device 13, so that it can film the formed cotton bales, and further be discharged from the body.

[0053] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic cotton picking, cleaning and baling machine, comprising a chassis, a cotton picking head connected to the front end of the chassis through a suspension device, a cotton conveying channel installed on the chassis and connected to the cotton picking head, the cotton conveying channel is connected to a cotton conveying fan, and the cotton conveying fan provides power to generate negative pressure to convey the seed cotton picked by the cotton picking head to a cotton collecting box; characterized in that: The pricking roller is arranged at the outlet of the cotton conveying channel and can rotate on a fixed axis, and the impurity filtering device is installed below the pricking roller; the primary impurity removing device is installed on the top of the cotton collecting box, and a secondary impurity removing device is arranged in the cotton collecting box. A plurality of secondary impurity removing devices are arranged obliquely inside the cotton collecting box, and a cotton discharging roller is installed above the secondary impurity removing device and can rotate on a fixed axis to force cotton discharging; The cotton conveying belt assembly is located at the front end of the bottom of the baling bin, the three-stage impurity removal device is installed below the cotton conveying belt assembly, and the cotton supporting frame is installed at the tail of the baling bin.

2. The automatic cotton picking, cleaning and baling machine according to claim 1, characterized in that: The primary impurity removal device is composed of an impurity removal fan and an arc-shaped filter plate. The impurity removal fan is arranged and installed on the top of the cotton collecting box along the width direction of the cotton picker, and each impurity removal fan corresponds to one of the cotton conveying channels. The arc-shaped filter plate is evenly distributed with small holes.

3. The automatic cotton picking, cleaning and baling machine according to claim 2, characterized in that: The upper surface of the impurity filtering device is evenly distributed with small holes, and the inner bottom surface of the impurity filtering device is inclined.

4. The automatic cotton picking, cleaning and baling machine according to claim 1, characterized in that: The secondary impurity removal device is composed of a screen, a screen frame, a vibrator, a base, a shock-absorbing spring, a rotating shaft, and a pressure sensor; the screen is fixedly mounted on the upper surface of the screen frame, and the vibrator is fixedly mounted on the lower surface of the screen frame, one on each side; the screen frame is connected to the base through a shock-absorbing spring, and both the lower surface of the screen frame and the bottom surface of the base have small cylindrical bosses inside to provide a position for the fixed installation of the shock-absorbing spring; the rotating shaft is fixedly mounted on one side of the base, and the rotating shaft is fixedly mounted on the box walls on both sides of the cotton picker through a bearing, which can drive the secondary impurity removal device to realize fixed-axis rotation; the pressure sensor is fixedly mounted inside the secondary impurity removal device, and is used to detect the pressure of the screen and the seed cotton.

5. The automatic cotton picking, cleaning and baling machine according to claim 4, characterized in that: The rotating shafts of the multiple secondary impurity removal devices are driven by the same motor, and the motor drives the rotating shafts of the multiple secondary impurity removal devices simultaneously through a gear transmission device.

6. The automatic cotton picking, cleaning and baling machine according to claim 4, characterized in that: The bottom surface of the substrate is internally inclined so that impurities can gather in one place.

7. The automatic cotton picking, cleaning and baling machine according to claim 4, characterized in that: The impurities collected by the impurity filtering device and the secondary impurity removing device are connected through a hose and directly discharged out of the machine body.

8. The automatic cotton picking, cleaning and baling machine according to claim 4, characterized in that: The opening rollers are dispersedly installed at the bottom of the cotton collecting box, and the cotton conveying belt is composed of a filtering grid. The seed cotton loosened by the opening rollers falls onto the cotton conveying belt assembly.

9. The automatic cotton picking, cleaning and baling machine according to claim 1, characterized in that: The packaging device is mainly composed of a first driving roller, a second driving roller, a rocker arm, a rocker arm cylinder, a packaging belt and multiple rollers. Driven by the first driving roller and the second driving roller, the packaging belt is wound around each roller for circular rolling, and the rocker arm cylinder drives the rocker arm to rotate counterclockwise or clockwise.

10. The automatic cotton picking, cleaning and baling machine according to claim 1, characterized in that: The cotton supporting frame is installed at the tail of the baling bin, and two supporting points of the cotton supporting frame are respectively rotatably mounted on the chassis and a telescopic hydraulic cylinder rotatably mounted on the chassis.

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