Reed harvester with multi-layer bale down device

Abstract

The present application provides a reed harvester with multi-layer small bundle device, comprising a multi-layer small bundle device and a control unit; the multi-layer small bundle device comprises a bundling device and a lead screw moving device; the bundling device comprises a plate body, a twine pre-straightening device, a twine conveying device, a guide seat, a twine twisting mechanism, a wire feeding device and a wire cutting device; the plate body is connected with the lead screw moving device; the control unit drives the bundling device to move up and down along the lead screw of the lead screw moving device, and the reed and other high-stalk crops can be multi-layered after harvesting, so that the bundled crops are not easy to loosen, the work efficiency is improved, the bundling speed can be automatically adjusted according to different forward speeds, the bundling distance can be adjusted according to the height of crops, and efficient harvesting and instant bundling of the reed and other high-stalk crops are realized.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of agricultural machinery, and particularly relates to a reed harvester with a multi-layer small-bundle device. BACKGROUND

[0002] With the improvement of agricultural mechanization level, the combined harvester plays an increasingly important role in crop harvesting, especially in large-area farmland operations. Reed and other high-stem crops occupy an important position in agricultural production and related industrial fields due to their special growth characteristics and utilization value. However, due to the special structure of high-stem crops and the processing requirements after harvesting, the traditional combined harvester faces a series of challenges in the harvesting, processing and bundling of reed and other crops.

[0003] The traditional combined harvester is mainly designed for the harvesting of low crops such as grains, and its header and processing system cannot effectively adapt to the characteristics of reed and other high-stem crops. The height and stem hardness of reed and other crops require the harvester to have higher adaptability and stronger processing capacity to ensure the efficiency of the harvesting process and the integrity of the crops.

[0004] In addition, high-stem crops usually need to be bundled after harvesting for transportation and subsequent use, but the traditional harvester lacks effective bundling devices after the header, so that the harvested crops need additional manual or mechanical bundling, and bundling a knot for high-stem crops is prone to looseness, which not only increases labor costs, but also reduces work efficiency. SUMMARY

[0005] The present application provides a reed harvester with a multi-layer small-bundle device, which realizes multi-layer small-bundle of reed and other high-stem crops after harvesting, so that the bundled crops are not prone to looseness, and the work efficiency is improved.

[0006] The present application can automatically adjust the bundling speed according to different forward speeds, realize the multi-layer small-bundle of reed and other high-stem crops after combined harvesting, and facilitate subsequent re-piling into the grain tank; the present application can also adjust the bundling distance according to the height of the crops.

[0007] The multi-layer small-bundle device of the present application can be directly installed at the rear of the harvester header to realize efficient harvesting and immediate bundling of reed and other high-stem crops.

[0008] The present application achieves the above technical purpose through the following technical means.

[0009] A reed harvester with a multi-layer small-bundle device, comprising a multi-layer small-bundle device and a control unit;

[0010] The multi-layer small bundle binding device comprises a binding device and a lead screw moving device; the binding device comprises a plate body, a wire binding pre-straightening device, a wire binding conveying device, a wire guide seat, a wire twisting mechanism, a wire feeding device and a wire cutting device which are installed on the plate body; the plate body is connected with the lead screw moving device; a left flow guide plate is arranged on one side of the front end of the plate body, and a right flow guide plate is arranged on the other side; a feeding port is formed between the left flow guide plate and the right flow guide plate; the wire binding pre-straightening device is arranged at the tail end of the plate body; the wire binding conveying device is arranged in front of the wire binding pre-straightening device, and the conveying channel of the wire binding conveying device is collinear with the straightening channel of the wire binding pre-straightening device; the wire guide seat is arranged at the front end of the wire binding conveying device, and the wire binding channel of the wire guide seat is collinear with the conveying channel of the wire binding conveying device; the wire twisting mechanism is arranged above the wire guide seat and in the feeding port; the wire feeding device is collinear with the wire binding channel in the initial position of the wire feeding hook head; the wire cutting device is arranged behind the wire feeding hook; the wire feeding device, the wire twisting mechanism, the wire binding conveying device and the lead screw moving device are respectively connected with a driving mechanism; a control unit is connected with the driving mechanism; the control unit controls the driving mechanism to move the binding device up and down along the lead screw of the lead screw moving device, so as to bind the harvested crops in multiple layers.

[0011] In the above scheme, the relationship between the knotting speed V of the binding device and the forward speed V of the harvester is: d V f = EV

[0012] V d = EV f BA

[0013] Wherein, B is the width of the reed harvester header, A is the planting density of the crops, and E is the efficiency coefficient (set according to the mechanical performance and the state of the crops).

[0014] In the above scheme, the lead screw moving device comprises a servo motor, a lead screw moving device base, a slide rail, a lead screw and a binding device tray.

[0015] The lead screw is installed on the lead screw moving device base, the servo motor is installed below the lead screw moving device base and connected with one end of the lead screw through the power output end; the slide rail is arranged on the lead screw moving device base and located on both sides of the lead screw; the binding device tray is connected with the lead screw and slidably connected with the slide rail on both sides; the plate body is connected with the binding device tray; the servo motor is used to drive the lead screw to rotate, so that the binding device tray drives the binding device to move up and down along the slide rail.

[0016] In the above scheme, the relationship between the knotting spacing U of the binding device and the number of rotations q of the servo motor and the lead screw pitch P is:

[0017] In the above scheme, the wire pre-straightening device is equipped with multiple straightening rubber wheels, and straightening channels are provided between the straightening rubber wheels. The straightening rubber wheels are used to pre-straighten the wire and extend it into the wire conveying device.

[0018] In the above scheme, the wire binding conveying device includes a pair of conveying gears; a conveying channel is provided between the pair of conveying gears, and the conveying channel of the wire binding conveying device is collinear with the straightening channel of the wire binding pre-straightening device.

[0019] In the above scheme, the wire-binding hook of the twisting mechanism is S-shaped and is used to twist two strands of wire together by rotation.

[0020] In the above scheme, the wire feeding device includes a wire feeding hook, a first connecting rod, a cam plate, an electric cylinder, and a second connecting rod;

[0021] The power output end of the electric cylinder is connected to one end of the cam plate, the other end of the cam plate is connected to one end of the second connecting rod, the other end of the second connecting rod is connected to the first connecting rod, one end of the first connecting rod is hinged to the plate body, and the other end is connected to one end of the wire feeding hook; the initial position of the head of the wire feeding hook is collinear with the wire binding channel.

[0022] Furthermore, the wire cutting device includes a cutter, with a bearing located below the cutter; the upper edge of the cam plate is an arc-shaped slope, the bearing contacts the arc-shaped slope, and an electric cylinder drives the cam plate, causing the bearing to move up and down under the action of the arc-shaped slope, thereby causing the cutter to cut the binding wire.

[0023] In the above scheme, the multi-layer bundling device also includes an auxiliary feeding tooth mechanism; the auxiliary feeding tooth mechanism includes paired tooth units, each tooth unit including a drive motor and toothed teeth; the drive motor drives the toothed teeth to open and close, and the drive motor is connected to the control unit.

[0024] Compared with the prior art, the beneficial effects of the present invention are:

[0025] This invention enables multi-layered bundling of tall crops such as reeds after harvesting using a single bundling device, preventing the bundled crops from becoming loose and improving operational efficiency. The invention automatically adjusts the bundling speed according to different forward speeds, achieving multi-layered bundling of tall crops like reeds after combined harvesting, facilitating subsequent stacking in grain bins. Furthermore, the invention can adjust the bundling spacing according to the crop height, adapting to tall crops of varying heights and helping to maintain the integrity of the crop stems. It can automatically complete the bundling of crops during harvesting, improving operational efficiency. With its simple structure, easy operation, and convenient installation and maintenance, this invention can be widely applied to harvesters of tall crops such as reeds, contributing to increased automation in tall crop harvesting, reduced operating costs, and improved operational efficiency. Attached Figure Description

[0026] Figure 1 Fig. 1 is a schematic view of a multi-layer bale-let device according to an embodiment of the present application;

[0027] Figure 2 Fig. 2 is a schematic view of a lead screw moving device according to an embodiment of the present application;

[0028] Figure 3 Fig. 3 is a schematic view of a bale-let device according to an embodiment of the present application;

[0029] Figure 4 Fig. 4 is a schematic view of a bale-let device plate and components thereon according to an embodiment of the present application;

[0030] Figure 5 Fig. 5 is a schematic view of a bale-let device baling process according to an embodiment of the present application;

[0031] Figure 6 Fig. 6 is a schematic view of a multi-layer bale-let device installed on a reed harvester according to an embodiment of the present application.

[0032] Fig. 1 is a schematic view of a multi-layer bale-let device according to an embodiment of the present application; Fig. 2 is a schematic view of a lead screw moving device according to an embodiment of the present application; Fig. 3 is a schematic view of a bale-let device according to an embodiment of the present application; Fig. 4 is a schematic view of a bale-let device plate and components thereon according to an embodiment of the present application; Fig. 5 is a schematic view of a bale-let device baling process according to an embodiment of the present application; Fig. 6 is a schematic view of a multi-layer bale-let device installed on a reed harvester according to an embodiment of the present application. In the drawings: 1. bale-let device; 2. lead screw moving device; 110. twine pre-straightening device; 111. straightening rubber wheel; 120. twine conveying device; 121. conveying gear, 130. twine twisting mechanism; 131. twine twisting hook; 132. twine twisting shaft; 140. twine feeding device; 141. twine feeding hook; 142. first connecting rod; 143. cam plate; 144. electric cylinder; 145. second connecting rod; 150. twine cutting device; 151. cutter; 152. bearing; 160. twine guide seat; 170. plate; 180. left flow guide plate; 190. right flow guide plate; 201. servo motor; 202. lead screw moving device base; 203. slide rail; 204. lead screw; 205. bale-let device tray; 3. auxiliary feeding gear; 4. clamping and conveying mechanism. DETAILED DESCRIPTION

[0033] Embodiments of the present application are described in detail below with reference to the attached drawing figures, wherein the same or like reference numerals and letters throughout the drawings denote the same or functionally similar elements. The embodiments described below are examples of implementations of the present application and are not intended to be limiting of the present application.

[0034] In the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "front", "back", "left", "right", "up", "down", "axial", "radial", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings based on the orientation or positional relationship, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" can be explicitly or implicitly included one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0035] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0036] As shown in Figures 1-6 A reed harvester with a multi-layer small bale device, comprising a multi-layer small bale device and a control unit;

[0037] As shown in Figure 1 , 3As shown in Figure 4, the multi-layer bundling device includes a bundling device 1 and a screw moving device 2; the bundling device 1 includes a plate 170, and a wire pre-straightening device 110, a wire conveying device 120, a wire seat 160, a twisting mechanism 130, a wire feeding device 140, and a wire cutting device 150 installed on the plate 170; the plate 170 is connected to the screw moving device 2; a left guide plate 180 is provided on one side of the front end of the plate 170, and a right guide plate 190 is provided on the other side, forming a feed inlet between the left guide plate 180 and the right guide plate 190; the wire pre-straightening device 110 is located at the rear end of the plate 170; the wire conveying device 120 is located in front of the wire pre-straightening device 110, and the conveying channel of the wire conveying device 120 is connected to the wire pre-straightening device 110. The straightening channels of the wire guide 160 are collinear; the wire guide seat 160 is located at the front end of the wire binding conveyor 120, and the wire binding channel of the wire guide seat 160 is collinear with the conveying channel of the wire binding conveyor 120; the twisting mechanism 130 is located at the feed inlet and above the wire guide seat 160; the initial position of the head of the wire feeding hook 141 of the wire feeding device 140 is collinear with the wire binding channel; the wire cutting device 150 is located behind the wire feeding hook 141; the wire feeding device 140, the twisting mechanism 130, the wire binding conveyor 120 and the screw moving device 2 are respectively connected to the drive mechanism; the control unit is connected to the drive mechanism, and the control unit controls the drive mechanism to make the bundling device 1 move up and down along the screw 204 of the screw moving device 2, for multi-layer bundling of the harvested material.

[0038] The knotting speed V of the bundling device 1 d With the forward speed V of the harvester f The relationship between them is:

[0039] V d =EV f BA formula one

[0040] Where B is the cutting width of the reed harvester's header, A is the crop planting density, and E is the efficiency coefficient (considering mechanical performance and crop condition settings).

[0041] like Figure 2 As shown, the lead screw moving device 2 includes a servo motor 201, a lead screw moving device base 202, a slide rail 203, a lead screw 204, and a bundling device tray 205;

[0042] The screw rod 204 is installed on the screw rod moving device base 202, the servo motor 201 is installed below the screw rod moving device base 202, and the power output end is connected with one end of the screw rod 204; the slide rail 203 is arranged on the screw rod moving device base 202, and the slide rail 203 is located on both sides of the screw rod 204; the baling device tray 205 is connected with the screw rod 204, and both sides are slidably connected with the slide rail 203; the plate body 170 is connected with the baling device tray 205; the servo motor 201 is used for driving the screw rod 204 to rotate, so that the baling device tray 205 drives the baling device 1 to move up and down along the slide rail 203.

[0043] The relationship between the knot spacing U of the baling device 1, the rotation number q of the servo motor 205 and the screw pitch P is:

[0044]

[0045] Combining Figure 5 As shown, when the harvester is working, the forward speed of the harvester is obtained through the sensor, the knot speed is obtained through formula one, the knot time is obtained by dividing the baling width by the knot speed, the rotation number of the servo motor 205 is obtained according to formula two, and the servo motor 205 is controlled to work.

[0046] The wire tying pre-straightening device 110 is provided with a plurality of straightening rubber wheels 111, and a straightening channel is arranged between the straightening rubber wheels 111; the straightening rubber wheels 111 are used for pre-straightening the wire tie, and extending into the wire tie conveying device 120.

[0047] The wire tie conveying device 120 includes a pair of conveying gears 121; a conveying channel is arranged between the pair of conveying gears 121; the conveying channel of the wire tie conveying device 120 is collinear with the straightening channel of the wire tie pre-straightening device 110.

[0048] The wire tie hook 131 at the front end of the wire twisting mechanism 130 is S-shaped, the driving mechanism drives the wire twisting shaft 132 to rotate the wire tie hook 131, and the two wires are twisted together by rotating.

[0049] As Figure 3 and 4 As shown, the wire feeding device 140 includes a wire feeding hook 141, a first connecting rod 142, a cam plate 143, an electric cylinder 144 and a second connecting rod 145;

[0050] The power output end of the electric cylinder 144 is connected with one end of the cam plate 143, the other end of the cam plate 143 is connected with one end of the second connecting rod 145, the other end of the second connecting rod 145 is connected with the first connecting rod 142, one end of the first connecting rod 142 is hinged with the plate body 170, and the other end is connected with one end of the wire feeding hook 141; the initial position of the head of the wire feeding hook 141 is collinear with the wire binding channel.

[0051] The wire cutting device 150 comprises a cutter 151, and a bearing 152 is arranged below the cutter 151; the upper edge of the cam plate 143 is an arc-shaped landslide, the bearing 152 is in contact with the arc-shaped landslide, the electric cylinder 144 drives the cam plate 143, and the bearing 152 moves up and down under the action of the arc-shaped landslide, so that the cutter 151 cuts off the bound wire.

[0052] The multi-layer small bundle device further comprises an auxiliary feeding gear mechanism 3; the auxiliary feeding gear mechanism 3 comprises a pair of gear units, the gear unit comprises a driving motor and a gear; the driving motor drives the gear to open and close, the driving motor is connected with a control unit, and the control unit controls the driving motor to make the gears on both sides open and close alternately, thereby assisting the crops to be fed into the feeding port.

[0053] In one specific embodiment of the present application, when the clamping conveying mechanism 4 conveys the reed to the feeding port, the gears on both sides slightly push the reed to assist the reed to be fed into the feeding port.

[0054] In another specific embodiment of the present application, when the clamping conveying mechanism 4 conveys the reed to the feeding port, the gears on both sides work alternately, specifically, the gears on both sides work alternately to push the reed to assist the reed to be fed into the feeding port, and after rotating 360 degrees to reset, the gears continue to work.

[0055] The bound wire pre-straightening device 110 is used for pre-straightening the bound wire sent from the bound wire barrel and extending into the bound wire conveying device 120; preferably, the bound wire conveying device 120 has two outer gears 121, and the bound wire is conveyed forward under the extrusion of the conveying wheel groove; the wire guide seat 160 is a square block with only one round hole through which the bound wire passes; the wire twisting mechanism 130 has a wire twisting hook 131 installed at the front end of a wire twisting shaft 132 and a belt wheel installed at the rear end, the belt wheel is connected with a motor through a belt, and the wire twisting hook 131 in the wire twisting mechanism 130 is designed in an S shape; the wire cutting device 150 moves up and down under the driving of the cam plate 143, the bearing and the cutter 151, so as to cut off the bound wire extending out of the round hole of the wire guide seat 160.

[0056] The working process of the present application is as follows: before the reed harvester starts harvesting, the twine is extended from the rear of the device into the pre-straightening device 110, and is straightened by the action of the three straightening rubber wheels 111, and is then extended into the twine conveying device 120. The lower conveying gear 121 of the twine conveying device is driven to rotate by the motor, and the two conveying gears 121 rotate inwardly by the meshing of the gears on the two conveying gears 121. The twine is clamped and conveyed forward by the extrusion of the conveying wheel groove of the conveying gear 121, and is extended through the round hole of the wire seat 160 to the upper end of the wire feeding hook 141. At this time, the conveying motor stops working. After the reed harvester has finished harvesting, the reed crop passes through the clamping and conveying mechanism 4, and is fed to the inlet of the bundling device 1 through the left guide plate 180, the right guide plate 190 and the auxiliary feeding raking mechanism 3. The control unit controls the driving motor to make the raking mechanisms on both sides open and close alternately, and assists in feeding the crop into the inlet. Under the control of the control unit, the knotting speed is output according to the forward speed of the harvester, and the control unit controls the knotting time interval. After the feeding is completed, the electric cylinder 144 starts to work, pushes the cam plate 143 to move forward, and the bearing 152 moves up and down under the action of the arc-shaped slide, pushes the cutter 151 to cut the twine in the front hole of the wire seat 160. At the same time, the cam plate 143 moves forward to drive the first connecting rod 142 of the wire feeding hook 141 to rotate, and drives the wire feeding hook 141 to push the twine to move backward and upward, and feeds the twine to the front of the twining mechanism 130. The other end of the twine that is cut off is also below the twining mechanism 130. At this time, the motor of the twining mechanism 130 starts to rotate, drives the twining hook 131 to rotate through the belt, twists the two ends of the wire together, realizes the reed small bundle, and the rear shearing motor rotates to restore the wire feeding hook 141 and the cutter 151. Then, according to the set knotting interval, the screw rod motor rotates for a corresponding number of turns, and the knotting process is repeated to realize multi-layer knotting of a small bundle of reed, and the reed after being bundled into a bundle is clamped into the material box by the mechanical hand or is manually put into the material box.

[0057] It should be understood that although the present specification is described in terms of various embodiments, not every embodiment contains only one independent technical solution, and the specification is described in this way only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

[0058] The series of detailed descriptions listed above are only specific descriptions of the feasible embodiments of the present application, and are not intended to limit the protection scope of the present application. Any equivalent embodiments or changes made without departing from the spirit of the present application should be included in the protection scope of the present application.

Claims

1. A reed harvester having a multi-tiered bale down device, characterized by, The multi-layer small bundle device and the control unit are included. The multi-layer small bundle device includes a bundling device (1) and a lead screw moving device (2); the bundling device (1) includes a plate body (170), and a wire binding pre-straightening device (110), a wire binding conveying device (120), a wire guide (160), a wire twisting mechanism (130), a wire feeding device (140) and a wire cutting device (150) installed on the plate body (170); the plate body (170) is connected with the lead screw moving device (2); the front end of the plate body (170) is provided with a left guide plate (180) on one side and a right guide plate (190) on the other side, and a feeding port is formed between the left guide plate (180) and the right guide plate (190); the wire binding pre-straightening device (110) is located at the tail end of the plate body (170); the wire binding conveying device (120) is located in front of the wire binding pre-straightening device (110); the wire guide (160) is located at the front end of the wire binding conveying device (120), and the wire binding channel of the wire guide (160) is collinear with the conveying channel of the wire binding conveying device (120); the wire twisting mechanism (130) is arranged in the feeding port and above the wire guide (160); the head of the wire feeding hook (141) of the wire feeding device (140) is collinear with the wire binding channel; the wire cutting device (150) is located behind the wire feeding hook (141). The wire feeding device (140), the wire twisting mechanism (130), the wire binding conveying device (120) and the lead screw moving device (2) are respectively connected with a driving mechanism; the control unit is connected with the driving mechanism, and the control unit drives the bundling device (1) to move up and down along the lead screw (204) of the lead screw moving device (2) by controlling the driving mechanism, so as to bundle the harvested crops in multiple layers. The lead screw moving device (2) includes a servo motor (201), a lead screw moving device base (202), a slide rail (203), a lead screw (204) and a bundling device tray (205). The lead screw (204) is installed on the lead screw moving device base (202), the servo motor (201) is installed below the lead screw moving device base (202) and connected with one end of the lead screw (204) through a power output end; the slide rail (203) is arranged on the lead screw moving device base (202) and located on both sides of the lead screw (204), the bundling device tray (205) is connected with the lead screw (204) and slidably connected with the slide rail (203) on both sides; and the plate body (170) is connected with the bundling device tray (205). The servo motor (201) is used to drive the lead screw (204) to rotate, so that the bundling device tray (205) drives the bundling device (1) to move up and down along the slide rail (203). The wire binding conveying device (120) includes a pair of conveying gears (121); a conveying channel is arranged between the pair of conveying gears (121), and the conveying channel of the wire binding conveying device (120) is collinear with the straightening channel of the wire binding pre-straightening device (110).

2. A reed harvester with a multi-tiered bale downer according to claim 1, characterized in that, The relationship between the tying speed V of the tying device (1) and the harvesting machine advance speed V d is as follows: The relationship between the tying speed V of the tying device (1) and the harvesting machine advance speed V f is as follows: ； Wherein, B is the cutting width of the reed harvester header, A is the planting density of the crops, and E is the efficiency coefficient.

3. A reed harvester with a multi-tiered bale downer according to claim 1, characterized in that, The relationship between the knot spacing U of the bundling device (1) and the rotation number q of the servo motor (201) and the screw pitch P is: .

4. The reed harvester with a multi-tiered small bundle device according to claim 1, characterized in that, The bundling line pre-straightening device (110) is provided with a plurality of straightening rubber wheels (111), and a straightening channel is arranged between the straightening rubber wheels (111), the straightening rubber wheels (111) are used for pre-straightening the bundling line, and the straightening rubber wheels (111) extend into the bundling line conveying device (120).

5. The reed harvester with a multi-tiered small bundle device according to claim 1, characterized in that, The bundling line hook (131) of the twisting mechanism (130) is S-shaped.

6. A reed harvester with a multi-tiered small bale apparatus as defined in claim 1, wherein, The wire feeding device (140) comprises a wire feeding hook (141), a first connecting rod (142), a cam plate (143), an electric cylinder (144) and a second connecting rod (145). The power output end of the electric cylinder (144) is connected with one end of the cam plate (143), the other end of the cam plate (143) is connected with one end of the second connecting rod (145), the other end of the second connecting rod (145) is connected with the first connecting rod (142), one end of the first connecting rod (142) is hinged with the plate body (170), and the other end is connected with one end of the wire feeding hook (141); the initial position of the head of the wire feeding hook (141) is collinear with the bundling line channel.

7. A reed harvester with a multi-tiered small bundle device according to claim 6, characterized in that, The wire cutting device (150) comprises a cutter (151), and a bearing (152) is arranged below the cutter (151); the upper edge of the cam plate (143) is an arc-shaped landslide, the bearing (152) is in contact with the arc-shaped landslide, the electric cylinder (144) drives the cam plate (143), the bearing (152) moves up and down under the action of the arc-shaped landslide, so that the cutter (151) cuts off the bundling line.

8. A reed harvester with a multi-tiered small bale apparatus as defined in claim 1, wherein, The multi-layer small bundle device further comprises an auxiliary feeding gear mechanism (3); the auxiliary feeding gear mechanism (3) comprises a pair of gear units, the gear unit comprises a driving motor and a gear; the driving motor drives the gear to open and close, and the driving motor is connected with the control unit.

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