Seed cutting machine capable of adjusting cutting length

Abstract

The utility model discloses a seed cutting machine capable of adjusting cutting length. The seed cutting machine comprises a support; the feeding conveyor belt is mounted on the bracket; the compression roller is mounted on the bracket and is positioned above the rear end of the feeding conveyor belt; the seed cutting box is mounted on the bracket and is positioned behind the compression roller; the seed cutting box comprises a seed cutting frame; each eccentric wheel set comprises two eccentric wheels which are oppositely distributed left and right; one eccentric wheel frame is mounted on each eccentric wheel; each eccentric wheel frame is connected with the seed cutting frame through a moving mechanism in a manner of moving up and down and moving back and forth; one blade is arranged between the two eccentric wheel frames of each eccentric wheel set, and the two blades are oppositely arranged up and down; a gear transmission mechanism; and a driving device. By adopting the seed cutting machine provided by the utility model, the seed cutting length can be adjusted; the structure that the compression roller is matched with the feeding conveying belt can prevent the sugarcane from slipping on the feeding conveying belt to cause uncertainty of the seed cutting length, and the seed cutting quality is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery and equipment, in particular to a seed cutter with adjustable cutting length. Background Art

[0002] Sugarcane seed cutting is an important agricultural technology that involves cutting sugarcane stalks into planting segments to improve germination and survival rates. Currently, sugarcane seed cutting mainly involves manual cutting and seed cutting machines. Manual cutting is inefficient and difficult to ensure the length and quality of the cuts. Seed cutting machines are used to cut sugarcane seeds into planting segments, improving cutting efficiency and reducing labor intensity. However, existing seed cutters are difficult to adjust the cutting length. Utility Model Content

[0003] The utility model aims to provide a seed cutter with adjustable cutting length, thereby overcoming the shortcoming of the existing seed cutter that the cutting length is difficult to adjust.

[0004] To achieve the above-mentioned purpose, the utility model provides a seed cutter with adjustable cutting length, comprising: a bracket; a feeding conveyor belt, which is mounted on the bracket, and the transport direction of the feeding conveyor belt is distributed from front to back, and is used to transport sugarcane seeds; a pressure roller, which is mounted on the bracket in a rotatable manner and is located above the rear end of the feeding conveyor belt, the pressure roller and the feeding conveyor belt are spaced apart from each other to form a sugarcane pressing gap, and the axis of the pressure roller is distributed along the left-right direction; a seed cutting box, which is mounted on the bracket and is located behind the pressure roller, and is used to cut sugarcane seeds; wherein the seed cutting box comprises: a seed cutting frame, which is mounted on the bracket and is located behind the pressure roller; two eccentric wheel groups, the two eccentric wheel groups are relatively distributed up and down, and each of the eccentric wheel groups includes two eccentric wheels relatively distributed on the left and right, and the two eccentric wheels are rotatably mounted on the seed cutting frame; one of the eccentric wheel groups is connected by a connecting shaft; an eccentric wheel frame, each of the eccentric wheels is equipped with an eccentric wheel frame, and the eccentric wheel frame is connected to the corresponding eccentric wheel; each eccentric wheel frame is connected to the seed cutting frame through a moving mechanism in a manner that it can move up and down and forward and backward; two blades, one blade is provided between the two eccentric wheel frames of each eccentric wheel group, and the two blades are arranged opposite to each other up and down; and a gear transmission mechanism, the two eccentric wheel groups are connected by the gear transmission mechanism; and a driving device, which is used to drive the feeding conveyor belt to rotate, the pressure roller to rotate and each eccentric wheel group to rotate.

[0005] Preferably, in the above technical solution, the gear transmission mechanism includes four gears, one gear is provided on the outer side of the rotating shaft of each eccentric wheel, and the two gears of the two eccentric wheels located on the same side are meshed and connected with each other.

[0006] Preferably, in the above technical solution, the pressure roller is provided with a plurality of evenly distributed rubber pressure plates along its circumferential direction.

[0007] Preferably, in the above technical solution, the height of the sugarcane pressing gap can be adjusted.

[0008] Preferably, in the above technical solution, the driving device includes: a power device for providing rotational force; a reversing mechanism for connecting the rotating shaft of the active roller of the feeding conveyor belt and the rotating shaft of the pressure roller; a first belt transmission mechanism for connecting the power device and the rotating shaft of the active roller; and a second belt transmission mechanism for connecting the rotating shaft of the active roller and the gear transmission mechanism.

[0009] Preferably, in the above technical solution, the reversing mechanism includes: a connecting arm, an upper end of which is provided with an arc-shaped hole opening facing forward and downward, and the rotating shaft of the pressure roller passes through the arc-shaped hole and can slide along the arc-shaped hole; a fixed arm, which is installed at the lower end of the connecting arm, and the lower ends of the connecting arm and the fixed arm are both provided with through holes for the rotating shaft of the active roller of the feeding conveyor belt to pass through; three fixed gears are provided in the fixed arm and are meshed with each other in sequence along the upper and lower directions; wherein the fixed gear located at the bottom is fixedly connected to the rotating shaft of the active roller; and a movable arm, the lower end of which is rotatably connected to the upper end of the fixed arm, and the upper end of the movable arm is provided with a through hole for the rotating shaft of the pressure roller to pass through; a movable gear is provided in the movable arm and is meshed with the fixed gear located above, and the movable gear is fixedly connected to the rotating shaft of the pressure roller; wherein the pressure roller is connected to the bracket in a manner that it can slide up and down.

[0010] 18. The swiftly and minutely adjusting device for a wood-planer working table as claimed in claim 15, wherein said linking rod and said adjusting base are pivotally connected to each other with a bolt, and said bolt has a round shank to contact with said linking rod. said linking rod has a round shank to contact with said linking rod.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. This new seed cutter allows for simple and convenient adjustment of the cut length of sugarcane seeds by adjusting the speed of the feed conveyor or the rotational speed of the two eccentric wheels. The press rollers, in conjunction with the feed conveyor, ensure that the gap between the press rollers constantly holds the sugarcane seeds and conveys them to the seed cutting box at the rear. This prevents the sugarcane from slipping on the feed conveyor, which could cause uncertainty in the cut length and ensures high-quality cutting.

[0013] 2. The press roller of the present invention is provided with multiple evenly distributed rubber pressing plates along its circumferential direction, which can not only improve the sugarcane pressing and conveying effect, but also avoid damaging the sugarcane buds and improve the survival rate of sugarcane seeds.

[0014] 3. The height of the sugarcane pressing gap of the utility model can be adjusted, which can adapt to sugarcane seeds of different diameters and avoid the phenomenon of sugarcane jamming, ensuring that the seed cutting work can proceed normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of a seed cutter with adjustable cutting length according to the utility model.

[0016] Figure 2 It is a three-dimensional structural schematic diagram of the seed cutter with adjustable cutting length according to the utility model from another perspective.

[0017] Figure 3 It is a structural schematic diagram of a seed cutting box according to the utility model.

[0018] Figure 4 It is a schematic diagram of the connection structure of the reversing mechanism, the pressure roller and the active roller according to the utility model.

[0019] Description of main reference numerals:

[0020] 1-feeding conveyor belt, 11-active roller, 2-second belt transmission mechanism, 3-pressure roller, 31-rubber pressure plate, 4-seed cutting box, 41-gear, 42-seed cutting frame, 43-connecting shaft, 44-eccentric wheel, 45-eccentric wheel frame, 46-vertical guide rail, 47-transverse guide rail, 48-transverse moving frame, 49-blade, 5-reversing mechanism, 51-movable arm, 52-movable gear, 53-arc hole, 54-fixed arm, 55-fixed gear, 56-connecting arm, 6-bracket, 7-diesel engine. DETAILED DESCRIPTION

[0021] The specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0022] Unless expressly stated otherwise, throughout the specification and claims, the term "comprise" or variations such as "include" or "comprising", etc., will be understood to include the stated elements or components but not to exclude other elements or other components.

[0023] Figures 1 to 4 The schematic diagram of the structure of a seed cutter with adjustable cutting length according to a preferred embodiment of the present invention is shown. The seed cutter includes a bracket 6, a feeding conveyor belt 1, a pressure roller 3, a seed cutting box 4 and a driving device.

[0024] refer to Figures 1 to 4The feed conveyor 1 is mounted on the support 6, oriented from front to back, to convey the sugarcane seeds backward. The press roller 3 is rotatably mounted on the support 6 and positioned above the rear end of the feed conveyor 1. The press roller 3 is spaced vertically from the feed conveyor 1 to form a press gap, with the axis of the press roller 3 oriented horizontally. The press roller 3, in conjunction with the structure of the feed conveyor 1, ensures that the sugarcane seeds are always held in the press gap and conveyed to the seed cutting box 4 at the rear. This prevents sugarcane from slipping on the feed conveyor 1, which could cause uncertainty in the cut length, and ensures seed quality. The seed cutting box 4 is mounted on the support 6 and located behind the press roller 3, and is used to cut the sugarcane seeds. The seed cutting box 4 comprises a seed cutting frame 42, two eccentric wheels, an eccentric wheel frame 45, two blades 49, and a gear transmission mechanism. The seed cutting frame 42 is mounted on the support 6 and located behind the press roller 3. Two eccentric wheel assemblies are positioned vertically opposite each other, each comprising two eccentric wheels 44 positioned opposite each other. Both eccentric wheels 44 are rotatably mounted on the seed cutting frame 42 via a rotating shaft. The rotating shafts between the eccentric wheel assemblies are connected by a connecting shaft 43, facilitating the rotation of the eccentric wheels 44. Each eccentric wheel 44 is mounted on an eccentric wheel frame 45, eccentrically connected to the corresponding eccentric wheel 44. Each eccentric wheel frame 45 is connected to the seed cutting frame 42 via a movable mechanism, enabling vertical and forward and backward movement. A blade 49 is positioned between the two eccentric wheel frames 45 of each eccentric wheel assembly. The two blades 49 are positioned vertically and oppositely, and are used to cut the sugarcane seeds. The two eccentric wheel assemblies are connected by a gear transmission mechanism, which drives the upper and lower eccentric wheel assemblies to rotate toward each other. The rotation of the eccentric wheels 44 simultaneously drives the eccentric wheel frames 45 to move vertically and forward and backward, thereby closing and opening the two blades 49 and performing the seed cutting operation. The drive device rotates the feed conveyor belt 1, the pressure rollers 3, and each eccentric wheel assembly, causing the feed conveyor belt 1 to transport the sugarcane seeds backward. Once the sugarcane seeds are conveyed beneath the pressure rollers 3, they are clamped and conveyed backward by the pressure rollers 3 and the feed conveyor belt 1, ultimately transporting them to the seed cutting box 4, where they are cut. The eccentric wheel assembly allows for simultaneous feeding and cutting of the sugarcane seeds. The cut length of the sugarcane seeds can be adjusted easily and conveniently by adjusting the speed of the feed conveyor belt 1 or the rotational speed of the two eccentric wheels.

[0025] refer to Figures 1 to 3 Preferably, the gear transmission mechanism includes four gears 41, and a gear 41 is provided on the outside of the rotating shaft of each eccentric wheel 44. The two gears 41 of the two eccentric wheels 44 on the same side are meshed and connected with each other. Through the action of the gears 41, the two eccentric wheels 44 on the same side can be driven to rotate inward relative to each other, thereby driving the two blades 49 to open and close and cut the sugarcane seeds.

[0026] refer to Figure 1、 Figure 2 and Figure 4 The pressing roller 3 can be a smooth roller structure made of rubber, or it can be provided with multiple evenly distributed rubber pressing plates 31 along its circumference. Preferably, the pressing roller 3 is provided with multiple evenly distributed rubber pressing plates 31 along its circumference, which can not only improve the sugarcane pressing and conveying effect, but also avoid damaging the sugarcane buds and improve the sugarcane seed survival rate.

[0027] refer to Figure 1 、 Figure 2 and Figure 4 The height of the sugarcane pressing gap can be fixed or adjustable. Preferably, the height of the sugarcane pressing gap can be adjusted so that it can adapt to sugarcane seeds of different diameters and avoid the phenomenon of sugarcane jamming, thereby ensuring that the seed cutting work can proceed normally.

[0028] refer to Figures 1 to 4 The pressure roller 3, feed conveyor belt 1, and seed cutting box 4 can each be equipped with a drive device, with each device driven by a separate drive device. Alternatively, all devices can be driven by a single drive device. Preferably, the drive device includes a power unit, a reversing mechanism 5, a first belt drive mechanism, and a second belt drive mechanism 2. The power unit is used to provide rotational force, and the power unit can be a diesel engine 7 or an electric motor. The reversing mechanism 5 connects the rotating shaft of the driving roller 11 of the feed conveyor belt 1 with the rotating shaft of the pressure roller 3, transmitting the rotational force of the driving roller 11 to the pressure roller 3. It can also change the direction of the pressure roller 3, causing the driving roller 11 and the pressure roller 3 to rotate inward relative to each other, thereby clamping and conveying the sugarcane seeds backward. The first belt drive mechanism connects the rotating shaft of the power unit and the driving roller 11, transmitting the rotational force of the power unit to the driving roller 11, driving the feed conveyor belt 1 to rotate backward and convey the sugarcane seeds. The second belt drive mechanism 2 connects the rotating shaft of the driving drum 11 to the rotating shaft of one of the gears 41 of the gear transmission mechanism. It transmits the rotational force of the driving drum 11 to the gear 41 of the seed cutting box 4, driving the eccentric wheel 44 to rotate, thereby driving the blade 49 to open and close, thereby cutting the seeds and achieving a matching between the feeding speed of the feed conveyor 1 and the cutting speed of the seed cutting box 4. If the cutting length of the sugarcane seeds needs to be adjusted, the synchronous pulley assembly of the second belt drive mechanism 2 can be replaced to adjust the transmission ratio.

[0029] refer to Figure 1 、 Figure 2 and Figure 4Preferably, the reversing mechanism 5 includes a connecting arm 56, a fixed arm 54 and a movable arm 51. The upper end of the connecting arm 56 is provided with an arc-shaped hole 53 with an opening facing forward and downward. The rotating shaft of the pressing roller 3 passes through the arc-shaped hole 53 and can slide along the arc-shaped hole 53, thereby adjusting the height of the pressing roller 3, that is, adjusting the height of the sugarcane pressing gap. The fixed arm 54 is installed at the lower end of the connecting arm 56. The lower end of the connecting arm 56 and the lower end of the fixed arm 54 are both provided with through holes for the rotating shaft of the active roller 11 of the feeding conveyor belt 1 to pass through. Three fixed gears 55 are provided in the fixed arm 54, which are meshed with each other in sequence in the up and down directions, and each fixed gear 55 can rotate. Among them, the fixed gear 55 located at the bottom is fixedly connected to the rotating shaft of the active roller 11. The lower end of the movable arm 51 is rotatably connected to the upper end of the fixed arm 54. A through-hole is formed at the upper end of the movable arm 51, through which the rotating shaft of the pressure roller 3 passes. The rotating shaft of the pressure roller 3 extends through the arc-shaped hole 53 and the through-hole of the movable arm 51, respectively. A movable gear 52 is housed within the movable arm 51, meshing with a fixed gear 55 located above. The movable gear 52 is fixedly connected to the rotating shaft of the pressure roller 3. The pressure roller 3 is connected to the bracket 6 in a manner that allows it to slide up and down. The three fixed gears 55 and one movable gear 52 transmit the rotational force of the driving drum 11 to the pressure roller 3 while simultaneously changing the direction of the pressure roller 3, causing the feed conveyor 1 and the pressure roller 3 to rotate inward relative to each other. Furthermore, when the sugarcane seeds are large in diameter, curved, or when multiple sugarcane seeds are being transported at once, the movable arm 51 swings, causing the pressure roller 3 to slide along the arc-shaped hole 53, driving the pressure roller 3 up and down relative to the bracket 6. This adjusts the height of the sugarcane pressing gap, prevents sugarcane jamming, and ensures proper cutting.

[0030] refer to Figures 1 to 3Preferably, the moving mechanism includes a transverse guide rail group, a transverse movable frame 48 and a vertical guide rail group. The seed cutting frame 42 is provided with a transverse guide rail group at the positions corresponding to the left and right ends of the two blades 49, and each transverse guide rail group includes at least two transverse guide rails 47 parallel to each other, and the length of each transverse guide rail 47 is distributed along the front-to-back direction. Each transverse guide rail group is provided with a transverse movable frame 48, and each transverse movable frame 48 spans between the corresponding two transverse guide rails 47, and each transverse movable frame 48 is provided with a transverse slider that is slidably connected to the transverse guide rail 47 at the position corresponding to each corresponding transverse guide rail 47, so that the transverse movable frame 48 can move forward and backward. A vertical guide rail group is provided on the inner side of each transverse movable frame 48, and each vertical guide rail group includes at least two vertical guide rails 46 parallel to each other, and the length of each vertical guide rail 46 is distributed along the up-down direction. Each eccentric wheel frame 45 spans between two corresponding vertical guide rails 46. Each eccentric wheel frame 45 is provided with a vertical slider at a position corresponding to each vertical guide rail 46, which is slidably connected to the vertical guide rail 46, so that the eccentric wheel frame 45 can move up and down relative to the transverse moving frame 48. The rotation of the eccentric wheel 44 and the action of the moving mechanism can drive the two blades 49 to move simultaneously in the vertical direction and the front-back direction, thereby driving the two blades 49 to open and close, thereby cutting the conveyed sugarcane seeds.

[0031] When in use, the sugarcane seeds can be transported into the seed cutting box 4 and cut by the action of the feeding conveyor belt 1 and the pressure roller 3. The whole machine has a simple structure and can adjust the cutting length of the sugarcane seeds.

[0032] The foregoing descriptions of specific exemplary embodiments of the present invention are for purposes of illustration and description. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it is apparent that many modifications and variations are possible in light of the foregoing teachings. The exemplary embodiments have been selected and described for the purpose of explaining the specific principles of the present invention and their practical application, thereby enabling those skilled in the art to realize and utilize a variety of exemplary embodiments of the present invention and various options and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A seed cutter with adjustable cutting length, characterized in that: include: Bracket; A feeding conveyor belt is installed on the bracket, and the transportation direction of the feeding conveyor belt is distributed from front to back, and is used for conveying sugarcane seeds; a pressing roller rotatably mounted on the bracket and located above the rear end of the feeding conveyor belt, the pressing roller and the feeding conveyor belt being spaced apart from each other to form a sugarcane pressing gap, and the axis of the pressing roller being distributed in the left-right direction; A seed cutting box is mounted on the bracket and located behind the pressing roller, and is used to cut the sugarcane seeds; wherein the seed cutting box includes: a seed cutting frame, which is mounted on the support and located behind the pressing roller; Two eccentric wheel groups, the two eccentric wheel groups are relatively distributed up and down, and each eccentric wheel group includes two eccentric wheels relatively distributed left and right, and the two eccentric wheels are rotatably mounted on the seed cutting frame; one of the eccentric wheel groups is connected by a connecting shaft; An eccentric wheel frame, each of the eccentric wheels is equipped with an eccentric wheel frame, and the eccentric wheel frame is connected to the corresponding eccentric wheel; each eccentric wheel frame is connected to the seed cutting frame via a moving mechanism in a manner that allows it to move up and down and forward and backward; Two blades, one of which is provided between the two eccentric wheel frames of each eccentric wheel assembly, and the two blades are arranged opposite to each other up and down; and a gear transmission mechanism, through which the two eccentric wheel sets are connected; and A driving device is used to drive the feeding conveyor belt, the pressure roller and each eccentric wheel group to rotate.

2. The seed cutter with adjustable cutting length according to claim 1, characterized in that: The gear transmission mechanism includes four gears. One gear is provided on the outer side of the rotating shaft of each eccentric wheel, and the two gears of the two eccentric wheels located on the same side are meshed and connected with each other.

3. The seed cutter with adjustable cutting length according to claim 1, characterized in that: The pressure roller is provided with a plurality of evenly distributed rubber pressure plates along its circumferential direction.

4. The seed cutter with adjustable cutting length according to claim 1, characterized in that: The height of the sugarcane pressing gap can be adjusted.

5. The seed cutter with adjustable cutting length according to claim 1, characterized in that: The driving device comprises: A power device for providing rotational force; a reversing mechanism for connecting the rotating shaft of the driving roller of the feeding conveyor belt and the rotating shaft of the pressing roller; a first belt transmission mechanism for connecting the power device and the rotating shaft of the active drum; and The second belt transmission mechanism is used to connect the rotating shaft of the active roller and the gear transmission mechanism.

6. The seed cutter with adjustable cutting length according to claim 5, characterized in that: The reversing mechanism comprises: A connecting arm, the upper end of which is provided with an arc-shaped hole opening toward the front and downward, and the rotating shaft of the pressing roller passes through the arc-shaped hole and can slide along the arc-shaped hole; A fixed arm mounted on the lower end of the connecting arm, wherein the lower ends of the connecting arm and the fixed arm are both provided with a through hole for the rotation shaft of the driving roller of the feeding conveyor belt to pass through; three fixed gears are provided in the fixed arm and mesh with each other in sequence along the upper and lower directions; wherein the fixed gear located at the lower end is fixedly connected to the rotation shaft of the driving roller; and A movable arm, the lower end of which is rotatably connected to the upper end of the fixed arm, and the upper end of the movable arm is provided with a through hole for the rotating shaft of the pressure roller to pass through; a movable gear is provided in the movable arm and is meshed with the fixed gear located above, and the movable gear is fixedly connected to the rotating shaft of the pressure roller; wherein the pressure roller is connected to the bracket in a manner that it can slide up and down.

7. The seed cutter with adjustable cutting length according to claim 1, characterized in that: The moving mechanism comprises: A transverse guide rail group is provided on the seed cutting frame at positions corresponding to the left and right ends of the two blades, each transverse guide rail group includes at least two vertically parallel transverse guide rails, and the length of each transverse guide rail is distributed along the front-to-back direction; A transverse movable frame, each transverse guide rail group is provided with a transverse movable frame, each transverse movable frame spans between two corresponding transverse guide rails, and each transverse movable frame is provided with a transverse slider in a position corresponding to each corresponding transverse guide rail and slidably connected to the transverse guide rail; and A vertical guide rail group, each of the horizontal movable frames is provided with a vertical guide rail group on the inner side, each of the vertical guide rail groups includes at least two vertical guide rails parallel to each other, and the length of each vertical guide rail is distributed along the up and down directions; each of the eccentric wheel frames spans between the corresponding two vertical guide rails, and each of the eccentric wheel frames is provided with a vertical slider that is slidably connected to the vertical guide rail at a position corresponding to each corresponding vertical guide rail.

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