Unginned cotton cleaning machine with adjustable barbed nail arrangement and roller inclination angle

Abstract

The invention belongs to the field of agricultural machinery, and relates to a barbed nail roller with adjustable barbed nail arrangement, which structurally comprises a roller shaft, symmetrically arranged roller flanges, a movable roller plate, a fixed roller plate, a roller wrapping plate, a guide rail plate, an extension spring, a left fixed block, a right fixed block, a lead screw and a lead screw handle, a seed cotton cleaning machine comprises a machine shell, a machine frame, a lattice bar grid set, an impurity discharging opening, a cotton feeding opening, a cotton outlet and the barbed nail roller with the barbed nails arranged in an adjustable mode. The barbed nail roller is reasonable in structure, economical and practical, barbed nails can be arranged and adjusted, the lead screw structure is accurate in transmission and high in adjusting precision, and tiny displacement and speed adjustment can be achieved; the seed cotton cleaning machine is simple in structure, high in precision, fast in response and high in stability, barbed nail arrangement adjustment and roller inclination angle adjustment can be carried out, parameter adjustment can be carried out according to seed cotton material characteristics, and the impurity cleaning quality and efficiency of seed cotton are greatly improved.

Description

Technical Field

[0001] The invention belongs to the field of agricultural machinery, and mainly relates to a seed cotton cleaning machine which can adjust the arrangement of thorns and the inclination of a drum according to different parameters of seed cotton materials. Background Art

[0002] At present, my country's cotton harvesting and processing industry has basically achieved mechanization, and mechanical harvesting has replaced manual harvesting. However, a large amount of impurities are mixed into the raw cotton during the mechanized harvesting process. For this reason, the factory needs to remove a large amount of impurities in the raw cotton through the seed cotton cleaning process, among which the inclined seed cotton cleaning machine is an important machine in the seed cotton cleaning process. The working principle of the inclined seed cotton cleaning machine is to wrap the seed cotton with a spike roller, and produce friction and hitting with the grid bars to achieve seed cotton cleaning. Among them, the difference in seed cotton material characteristics is an important factor affecting the cleaning effect. Seed cotton with different characteristics requires seed cotton cleaning machines with different working parameters such as spike arrangement and roller inclination. At present, most seed cotton cleaning machines with fixed working parameters are used. It is impossible to set appropriate working parameters for seed cotton with different characteristics. The cleaning rate is improved through extensive processing of multiple cleaning, resulting in a decrease in cotton quality and an increase in factory costs. Therefore, it is of great significance to automate the arrangement of spikes and the inclination of the roller for seed cotton cleaning equipment.

[0003] Chinese patent CN113802189A invented a compound seed cotton cleaning machine that can automatically adjust working parameters. It adopts a worm gear structure to achieve precise adjustment of the gap between the drum and the grid bars, and also designs an automatic adjustment system that can automatically adjust working parameters to ensure working accuracy. Chinese patent CN116065242A designs a grid bar group that can adjust the grid bar gap according to the different conditions of seed cotton, and the seed cotton cleaning machine formed by it, which can adjust the grid bar gap according to the different conditions of seed cotton for seed cotton of different qualities. Chinese patent CN219508078U designs a durable spiked drum, which adopts a seamless structure of the drum body, and improves the durability and roundness of the drum through the sliding cooperation between the telescopic component and the outer wall of the drum. Although the above patented technology has promoted the automation of the cotton processing industry, the arrangement of the drum spikes and the inclination of the drum cannot be adjusted according to specific actual needs. The market urgently needs an inclined seed cotton cleaning machine with adjustable spike arrangement, accurate transmission and high adjustment accuracy, which can achieve small displacement and speed adjustment, and stable and reliable working performance. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that the existing seed cotton cleaning machine has a low degree of automation and cannot be reasonably and accurately adjusted according to the characteristics of the seed cotton material, and to provide a thorn drum with a reasonable structure, economy and practicality, adjustable thorn arrangement, accurate transmission of the screw mechanism, high adjustment accuracy, ability to achieve small displacement and speed adjustment, stable and reliable working performance, and compact structure with adjustable thorn arrangement.

[0005] Another object of the present invention is to provide a seed cotton cleaning machine with simple structure, high precision, fast response, high stability, and capable of arranging spikes and adjustable drum inclination, thereby greatly improving the cleaning quality and efficiency of seed cotton.

[0006] The invention discloses a spike drum with adjustable spike arrangement, which is characterized in that the structure includes a drum shaft, left and right drum flanges, a movable drum plate, a fixed drum plate, a drum cover plate, a guide plate, a tension spring, a left fixed block, a right fixed block, a lead screw, and a lead screw handle;

[0007] The movable roller plate and the fixed roller plate are arranged between the left and right roller flanges and are arranged alternately to form a roller body. The movable roller plate and the fixed roller plate are both provided with spikes.

[0008] The length of the movable roller plate is shorter than that of the fixed roller plate, and the two ends are respectively wrapped by roller wrapping plates and the movable roller plate can slide parallel to the inner side of the roller wrapping plates, and the roller wrapping plates are fixedly connected to the roller flanges at the two ends; two symmetrically arranged guide rail plates are provided on the inner side of the movable roller plate, and each of the guide rail plates is provided with a long strip slide groove and notches at the left and right ends; a translation bolt group is provided at the position of the movable roller plate corresponding to the long strip slide groove, one end of the translation bolt group is connected to the movable roller plate, and the other end is embedded in the slide groove, and the translation bolt group drives the movable roller plate to move left and right along the slide groove;

[0009] A tension spring and a left fixed block are provided at the notch position at the left ends of the two guide rail plates. The left fixed block is fixedly connected to the movable roller plate above, and the left fixed block is connected to the roller flange on the left side through a tension spring; a lead screw and a right fixed block are provided at the notch position at the right ends of the two guide rail plates. The right fixed block is fixedly connected to the movable roller plate above, and the lead screw is threadedly connected to the right fixed block. The lead screw extends outward to pass through the roller flange on the right side and is fixedly connected to the lead screw handle.

[0010] Preferably, the movable roller plate and the fixed roller plate are provided with a plurality of thorn holes arranged linearly, and the thorns are fixed to the thorn holes by threaded connection.

[0011] Preferably, four translation bolt groups are symmetrically arranged to ensure the reliability and stability of the connection.

[0012] The present invention further discloses a seed cotton cleaning machine, including a casing, a frame, a lattice bar group, a trash discharge port, a cotton feeding port, and a cotton outlet port, and also includes the aforementioned spiked roller with adjustable spike arrangement. A plurality of the lattice bar groups are arranged linearly, and both ends of the lattice bar groups are connected to the frame through bearing seats, and an adjustment window is provided on the casing to adjust the lattice bar groups; a plurality of lattice bar groups are arranged coaxially with the lattice bar groups, the trash discharge port is located at the bottom of the frame, and the cotton feeding port is located at the top of the frame. The lattice bar group adopts a conventional design in the prior art, see Chinese patent CN202211044999.0 for a lattice bar group with adjustable gap and the structure in the seed cotton cleaning machine formed therein.

[0013] Preferably, the front end of the frame is also provided with an inclination adjustment mechanism, which is a push rod mechanism including an electric cylinder, a motor, and an electric cylinder connector. The push rod of the electric cylinder is driven by the motor to change the inclination of one side of the seed cotton cleaning machine.

[0014] In practical application, the structure of the present invention is described in detail as follows:

[0015] The spiked roller with adjustable spike arrangement described in the present invention comprises a fixed roller plate, a roller flange, a roller shaft, spikes, a movable roller plate, a roller wrap plate, a guide plate, a left fixed block, a right fixed block, a lead screw, and a tension spring; the inclination adjustment mechanism described in the present invention comprises a motor and an electric cylinder, and a cushion block is provided under the electric cylinder.

[0016] The technical solution of the thorn drum with adjustable thorn arrangement is as follows:

[0017] The fixed roller plate is provided with stinging holes arranged at intervals, and its two ends are connected to the roller flange. It is an ordinary fixed roller plate. The two ends of the guide plate are fixed to the roller flange, and the two ends are hollowed out to form notches. A long strip slide groove is provided in the middle, and a gap is left between the two guide plates. The fixed roller plate and the movable roller plate have no rounded corners.

[0018] The fixed roller plate and the movable roller plate are arranged alternately along the circumference, and both ends are respectively connected and fixed to the roller flange. A roller wrapping plate is provided outside the movable roller plate, which wraps both ends of the movable roller plate, and the movable roller plate can slide left and right inside the roller wrapping plate.

[0019] The cross-sectional shape of the movable roller plate is a rectangle without rounded corners. The opposite movable roller plate is parallel to the fixed roller plate when arranged. The movable roller plate is arranged on the guide rail plate, and is also provided with linearly arranged thorn holes, and also has circular holes that match the guide rail plate. The movable roller plate is fixed by a translation bolt group to connect the movable roller plate with the guide rail plate, so that the movable roller plate cannot be separated from the roller during movement. At the same time, it can ensure that the movable roller plate moves left and right in the slide groove, thereby achieving the effect of adjusting the arrangement of the thorns.

[0020] The movable roller plate is provided with threaded holes on the inner side for fastening with the left and right fixed blocks, which are fastened by the fastening bolts. The upper surfaces of the left and right fixed blocks are both provided with threaded holes for fastening with the movable roller plate, and two parallel circular holes are provided on the side for connecting with the tension spring.

[0021] There are two tension springs, which assist and reset the movement of the movable roller plate, provide a rightward thrust when the movable roller plate moves from the left end to the right end, and provide a leftward pulling force when the movable roller plate moves in the opposite direction.

[0022] The right fixed block is provided with a threaded hole engaged with the lead screw, one end of the lead screw passes through the threaded hole of the right fixed block, and the right fixed block moves left and right by rotating the lead screw, and the other end passes through the right roller flange, and the lead screw handle is rotated to rotate the lead screw, thereby causing the movable roller plate fastened to the right fixed block to move left and right.

[0023] Preferably, the length of the lead screw should be longer than the movable range of the movable roller plate to prevent the lead screw from falling off and failing to cooperate with the right fixed block.

[0024] Preferably, the spiked plate is slightly longer than the movable roller plate and is disposed on both sides of the movable roller plate, thereby avoiding cotton jams and wire pulling during the operation of the roller.

[0025] Preferably, the roller flange is connected to the movable roller plate, the fixed roller plate and the roller cover plate by welding, so as to improve the firmness and working reliability of the components.

[0026] The adjustable part of the present invention includes an adjustable spike roller and an inclination adjustment of the whole machine. The adjustable spike roller is threadedly connected to the right fixed block through a lead screw, the movable roller plate is fixedly connected to the right fixed block, the lead screw handle is connected to the lead screw through a pin to rotate, the guide plate and the spike package plate limit the movable roller plate, and the tension spring is connected to the roller flange and the left fixed block to assist in the adjustment of the movable roller plate, thereby improving the reliability and practicality of the equipment.

[0027] The inclination angle of the whole machine is adjusted by a push rod mechanism, including but not limited to an electric cylinder. The inclination angle adjustment mechanism is located outside the casing, the electric cylinder connecting piece is connected to the frame by welding, and the push rod mechanism is connected to the electric cylinder connecting piece by bolts and nuts; a certain distance is maintained between the inclination angle adjustment mechanism and the casing to prevent collision with the casing during operation.

[0028] The thorn nail drum with adjustable thorn nail arrangement disclosed by the present invention adopts a structure in which a lead screw, a right fixed block, a lead screw handle and a tension spring cooperate to adjust the thorn nail arrangement. The lead screw has accurate transmission and high adjustment accuracy, can realize small displacement and speed adjustment, has stable and reliable working performance and a compact structure.

[0029] The seed cotton cleaning machine provided by the present invention uses an adjustable spike drum and an angle adjustment structure, has a reasonable structure, reliable operation, and low price. The movable drum plate is moved left and right by adjusting the lead screw, and the arrangement of spikes can be adjusted to a certain extent according to demand. The stretch spring assembly is used to provide power assistance to the movement of the movable drum plate. The tilt angle of the inclined seed cotton cleaning machine is adjusted by the angle adjustment mechanism, and a push rod mechanism is used for adjusting the drum angle, which has the advantages of simple structure, high precision, fast response, high stability, etc. The seed cotton cleaning machine provided by the present invention is economical and practical, and parameters can be adjusted according to the material characteristics of the seed cotton. The automatic transformation of the arrangement of spikes and the drum angle is realized by the adjustable spike drum and the drum angle adjustment mechanism, which further promotes the cotton processing industry's flower matching. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the three-dimensional structure of the thorn drum with adjustable thorn arrangement of the present invention.

[0031] Figure 2 It is a schematic diagram of the front view of the structure of the thorn drum with adjustable thorn arrangement of the present invention.

[0032] Figure 3 for Figure 2 Schematic diagram of the main structure after removing the movable roller plate.

[0033] Figure 4 It is a schematic structural diagram of the guide rail plate of the present invention.

[0034] Figure 5 for Figure 2 Schematic diagram of the cross-sectional structure in the AA direction.

[0035] Figure 6 This is a three-dimensional structural diagram of the seed cotton cleaning machine after the outer shell is removed according to the present invention.

[0036] Figure 7 This is a front structural view of the seed cotton cleaning machine after the outer shell is removed.

[0037] As shown in the figure: 1 is the roller shaft, 2 is the roller flange, 3 is the screw handle, 4 is the roller cover plate, 5 is the movable roller plate, 6 is the fixed roller plate, 7 is the thorn hole, 8 is the fastening bolt group, 9 is the translation bolt group, 10 is the guide plate, 10-1 is the slide groove, 10-2 is the notch, 11 is the tension spring, 12 is the left fixed block, 13 is the right fixed block, 14 is the screw, 15 is the frame, 16 is the thorn, 17 is the thorn roller, 18 is the cotton feeding port, 19 is the motor, 20 is the electric cylinder, 21 is the electric cylinder connecting part, and 22 is the lattice grille group. DETAILED DESCRIPTION

[0038] The present invention will be further described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0039] Embodiment 1:

[0040] Refer to the attached Figure 1-5 A spike roller with adjustable spike arrangement, the structure of which includes a roller shaft 1, a symmetrically arranged roller flange 2, a movable roller plate 5, a fixed roller plate 6, a roller package plate 4, a guide plate 10, a tension spring 11, a left fixed block 12, a right fixed block 13, a screw 14, and a screw handle 3.

[0041] The movable roller plate 5 and the fixed roller plate 6 are arranged between the symmetrically arranged roller flanges 2 and are staggered to form a roller body. The movable roller plate 5 and the fixed roller plate 6 are both provided with spikes 16.

[0042] The length of the movable roller plate 5 is shorter than that of the fixed roller plate 6, and its two ends are respectively wrapped by the roller wrapping plates 4 and the movable roller plate 5 can slide parallel to the inner side of the roller wrapping plates 4, and the roller wrapping plates 4 are fixedly connected to the roller flanges 2 at both ends; the inner side of the movable roller plate 5 is provided with two symmetrically arranged guide plates 10, each of which is provided with a long strip slide groove 10-1 and notches 10-2 located at the left and right ends, and the movable roller plate 5 is provided with a translation bolt group 9 at a position corresponding to the long strip slide groove 10-1, one end of the translation bolt group 9 is connected to the movable roller plate 5, and the other end is embedded in the slide groove 10-1, and the translation bolt group 9 drives the movable roller plate 5 to move left and right along the slide groove 10-1.

[0043] At the notch 10-2 position at the left end of the two guide rail plates 10, a tension spring 11 and a left fixed block 12 are provided, the left fixed block 12 is fixedly connected to the upper movable roller plate 5, and the left fixed block 12 is connected to the left roller flange 2 through the tension spring 11; at the notch 10-2 position at the right end of the two guide rail plates 10, a lead screw 14 and a right fixed block 13 are provided, the right fixed block 13 is fixedly connected to the upper movable roller plate 5, the lead screw 14 is threadedly connected to the right fixed block 13, the lead screw 14 extends outward to pass through the right side of the roller flange 2, and is fixedly connected to the lead screw handle 3.

[0044] The movable roller plate 5 and the fixed roller plate 6 are provided with a plurality of piercing holes 7 arranged linearly, and the piercing nails 16 are fixed to the piercing holes 7 by threaded connection. Four translation bolt groups 9 are symmetrically arranged to ensure the reliability and stability of the connection.

[0045] In the thorn drum structure with adjustable arrangement of thorns in this embodiment, the fixed drum plate 6 is provided with some linearly arranged thorn holes 7 according to the requirement of equal spacing, and the thorns are fixed on the thorn holes 7 by threaded connection. The two ends of the guide plate 10 are hollowed out to provide space for the left fixed block 12 and the left fixed block 13 to move left and right; the guide plate 10 is connected to the movable drum plate 5 by a translation bolt group 9 through the slide groove 10-1, and four translation bolt groups 9 are symmetrically arranged to ensure the reliability and stability of the connection. The two guide plates 10 are spaced apart so that the nuts for fixing the thorns can pass through and do not interfere with the guide plates 10; drum wrapping plates 4 are installed on both sides of the drum to prevent the movement of the movable drum plate 5 from causing gaps on the drum surface, thereby causing cotton jams and rope wires; the movable drum plate 5 is fixedly connected to the lower left fixed block 12 and the right fixed block 13 by four fastening bolt groups 8 to ensure the synchronization of the movements of the two.

[0046] The left fixed block 12 is provided with a circular hole that passes through the left and right sides. The commonly used fastening bolts pass through the circular hole to achieve the fastening of one end of the tension spring 11 to the left fixed block 12 and the other end to the left roller flange. The compression and stretching distance of the tension spring 11 can also prevent the excessive movement of the movable roller plate 5. The inherent characteristics of the tension spring 11 can also provide auxiliary effects for the movement of the movable roller plate 5. The right fixed block 13 is provided with a threaded hole that passes through the left and right sides. The screw 14 is engaged with the threaded hole. The screw 14 passes through the right roller flange 2 and is threadedly connected with the screw handle 3. The side surface of the screw 14 is provided with a circular hole. The circular hole passes through the screw 14 but does not pass through the screw handle 3. The screw handle 3 is pin-connected with the screw 14. The pin connection ensures the adjustability and stability of the screw movement, further preventing the screw handle 3 from falling off during the rotation of the screw 14. The position where the screw 14 passes through the left roller flange 2 is not threaded, which reduces the damage of the screw 14 to the roller flange during the rotation process and ensures the effective operation of the screw adjustment mechanism.

[0047] The screw handle 3 rotates, driving the screw 14 to rotate, and the right fixed block 13 and the movable roller plate 5 are pushed to move through the threaded transmission. The guide plate 10 ensures the smooth movement of the movable roller plate 5. When the movable roller plate 5 moves to the left limit position, the tension spring 11 is compressed to the limit position, preventing the movable roller plate 5 from moving to the left, and also preventing the screw 14 and the right fixed block 13 from falling off; when the movable roller plate 5 moves to the right, the tension spring 11 applies a rightward thrust to the left fixed block 12, and when the movable roller plate 5 reaches the right limit position, the tension spring 11 applies a leftward pulling force, thereby realizing the precise adjustment of the arrangement of the thorns.

[0048] By adjusting the arrangement of the drum spikes, the seed cotton can be significantly cleaned and the damage to the cotton fibers can be reduced.

[0049] Embodiment 2:

[0050] See attached Figure 6-7 This embodiment provides a seed cotton cleaning machine, including a casing, a frame 15, a grid bar group 22, a trash discharge port, a cotton feeding port 18, a cotton outlet, and also includes the thorn drum 17 with adjustable thorn arrangement as described in Example 1.

[0051] The plurality of thorn rollers 17 are arranged linearly, and the two ends of the thorn rollers 17 are connected to the frame 15 through bearing seats, and an adjustment window is provided on the housing to adjust the thorn rollers 17; a plurality of lattice grille groups 22 are arranged coaxially with the thorn rollers 17, the impurity discharge port is located at the bottom of the frame, and the cotton feeding port is located at the top of the frame. The lattice grille group adopts a conventional design in the prior art.

[0052] Embodiment 3:

[0053] Refer to the attached Figure 6-7 The difference between this embodiment and embodiment 2 is that:

[0054] The front end of the frame 15 is also provided with an inclination adjustment mechanism, which is a push rod mechanism, including an electric cylinder 20, a motor 19, and an electric cylinder connector 21. The push rod of the electric cylinder 20 driven by the motor 19 can change the inclination of one side of the seed cotton cleaning machine.

[0055] The tilt adjustment mechanism of the present invention adopts a push rod mechanism, and selects an electric cylinder 20 and an electric cylinder connector 21 with a lighter structure and more reliable operation. The tilt adjustment mechanism is symmetrically placed at the front end of the frame, and the electric cylinder connector 21 is connected to the frame of the seed cotton cleaning machine by welding to ensure the tightness and reliability of the connection. The upper end of the electric cylinder 20 is connected to the electric cylinder connector 21 by bolts, and the lower section is placed on the ground, and the electric cylinder 20 maintains a certain distance from the frame.

[0056] The two groups of electric cylinders 20 move synchronously, and the rotation of the motor 19 drives the push rod to move up and down, so that the electric cylinder 20 rises and falls. The electric cylinder 20 is connected to the frame 15, and one side of the frame 15 is lifted with the movement of the electric cylinder 20, thereby realizing the adjustment of the inclination angle of the nail drum 17.

[0057] Working principle:

[0058] The parameters of the seed cotton cleaning machine are adjusted according to the difference in material properties. The screw handle 3 rotates to drive the screw 14 to rotate, and the right fixed block 13 and the movable roller plate 5 are pushed to move through the threaded transmission. The guide plate 10 ensures the stability of the movable roller plate 5. When the movable roller plate 5 moves to the left limit position, the tension spring 11 is compressed to the limit position to prevent the movable roller plate 5 from moving to the left, and also prevent the screw 14 and the right fixed block 13 from falling off. When the movable roller plate 5 moves to the right, the tension spring 11 applies a rightward thrust to the left fixed block 12. When the movable roller plate 5 reaches the right limit position, the tension spring 11 applies a leftward pulling force, thereby realizing the precise adjustment of the arrangement of the spikes; the two electric cylinders 20 in the inclination adjustment mechanism move synchronously, and the motor 19 rotates to drive the electric cylinder push rod to move up and down, so that the electric cylinder 20 rises and falls, and one side of the frame 15 is lifted with the movement of the electric cylinder 20, thereby realizing the adjustment of the roller inclination.

[0059] Through the design of the seed cotton cleaning machine with adjustable arrangement of spikes and drum inclination, the working parameters of the seed cotton cleaning machine are adjusted according to the material characteristics of the seed cotton, the automation degree of the inclined seed cotton cleaning machine is improved, and the cleaning effect of the inclined seed cotton cleaning machine is significantly improved.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A thorn drum with adjustable thorn arrangement, characterized in that Its structure includes a roller shaft, roller flanges arranged on the left and right, a movable roller plate, a fixed roller plate, a roller cover plate, a guide plate, a tension spring, a left fixed block, a right fixed block, a lead screw, and a lead screw handle; The movable roller plate and the fixed roller plate are arranged between the symmetrically arranged roller flanges and are staggered to form a roller body. The movable roller plate and the fixed roller plate are both provided with spikes. The length of the movable roller plate is shorter than that of the fixed roller plate, and the two ends are respectively wrapped by roller wrapping plates and the movable roller plate can slide parallel to the inner side of the roller wrapping plates, and the roller wrapping plates are fixedly connected to the roller flanges at the two ends; two symmetrically arranged guide rail plates are provided on the inner side of the movable roller plate, and each of the guide rail plates is provided with a long strip slide groove and notches at the left and right ends; a translation bolt group is provided at the position of the movable roller plate corresponding to the long strip slide groove, one end of the translation bolt group is connected to the movable roller plate, and the other end is embedded in the slide groove, and the translation bolt group drives the movable roller plate to move left and right along the slide groove; A tension spring and a left fixed block are provided at the notch position at the left ends of the two guide rail plates. The left fixed block is fixedly connected to the movable roller plate above, and the left fixed block is connected to the roller flange on the left side through a tension spring; a lead screw and a right fixed block are provided at the notch position at the right ends of the two guide rail plates. The right fixed block is fixedly connected to the movable roller plate above, and the lead screw is threadedly connected to the right fixed block. The lead screw extends outward to pass through the roller flange on the right side and is fixedly connected to the lead screw handle.

2. The thorn drum with adjustable thorn arrangement according to claim 1, characterized in that The movable roller plate and the fixed roller plate are provided with a plurality of thorn holes which are linearly arranged, and the thorns are fixed to the thorn holes by threaded connection.

3. The pricking drum with adjustable pricking arrangement according to claim 1 or 2, characterized in that The four translation bolt groups are symmetrically arranged to ensure the reliability and stability of the connection.

4. A seed cotton cleaning machine, comprising a housing, a frame, a grid bar group, a trash discharge port, a cotton feeding port, and a cotton outlet, characterized in that It also includes the thorn drum with adjustable thorn arrangement as described in any one of claims 1-3.

5. The seed cotton cleaning machine according to claim 4, characterized in that: The plurality of thorn rollers are arranged linearly, and both ends of the thorn rollers are connected to the frame through bearing seats, and an adjustment window is provided on the casing to adjust the thorn rollers; a plurality of grating groups are arranged coaxially with the thorn rollers, the impurity discharge port is located at the lower end of the frame, and the cotton feeding port is located at the upper end of the frame.

6. The seed cotton cleaning machine according to claim 5, characterized in that The front end of the frame is also provided with an inclination adjustment mechanism, which is a push rod mechanism, including an electric cylinder, a motor, and an electric cylinder connector. The push rod of the electric cylinder is driven by the motor to change the inclination of one side of the seed cotton cleaning machine.

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