A residual film conveying device and method capable of bidirectional cleaning and a residual film recycling machine

Abstract

The present invention relates to a residual film conveying device, method and residual film recycling machine capable of bidirectional cleaning, comprising a frame, the frame is provided with multiple groups of chain transmission mechanisms, the transmission chain of the chain transmission mechanism is equipped with a picking spring tooth assembly, the frame is rotatably connected to a first support shaft and a second support shaft, an active swing rod is fixed at both ends of the first support shaft, a driven swing rod parallel to the active swing rod is fixed at both ends of the second support shaft, a connecting rod parallel to the frame is provided between the top ends of the active swing rod and the driven swing rod on the same side of the frame, a vibration shaft is provided between the top ends of the active swing rods on both sides of the frame, a vibration shaft is provided between the top ends of the driven swing rods, a guide swing rod located at the inner side of the transmission chain is provided outside the two vibration shafts, an elastic assembly is provided between the guide swing rod and the first support shaft and the third support shaft rotatably connected to the frame, at least one side of the active swing rod is connected to the swing driving mechanism, and the conveying device of the present invention improves the residual film cleaning effect.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural machinery, and in particular to a residual film conveying device and method capable of bidirectional cleaning, and a residual film recycling machine. Background Art

[0002] The statements herein merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] Residual film is a valuable recyclable resource, but in actual production, a large amount of machine-harvested residual film is piled up in the fields and cannot be used, which not only causes a waste of resources, but also causes environmental pollution. Realizing recycling is an effective way to solve the subsequent treatment of residual film recycling. It can fundamentally solve the pollution caused by incineration and landfill, and can also turn waste into treasure and regenerate resources. However, due to the poor cleaning effect of existing residual film recycling machines, the recycled residual film contains a large amount of impurities such as crop straw and soil, which makes it impossible to recycle the machine-harvested residual film due to its high impurity content. Therefore, designing a new type of cleaning device to improve the cleaning performance of the residual film recycling machine and reduce the impurity content of the machine-harvested residual film is one of the current focuses of the research and development of residual film recycling machines.

[0004] Most of the existing residual film recycling machines are not equipped with special cleaning devices. They only rely on the upward tilting structural characteristics of the picking device and the vibration generated by its own transmission to make the impurities fall by their own gravity during the upward movement of the residual film. However, since the residual film and straw have a small weight, and the residual film conveying device is composed of a chain with spring teeth, it is a flexible structure, and the longer spring teeth can easily block the impurities from falling; in addition, since the residual film and straw are mixed together, and most of them are in small segments and broken sections, they are small in size and light in weight, and cannot rely on their own weight to achieve relative movement between the residual film and the conveying mechanism, which further reduces the chance of separation of straw and residual film. As a result, the effective cleaning distance of the traditional residual film recycling machine is short and the effect is poor. Summary of the invention

[0005] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a residual film conveying device, method and residual film recovery machine capable of bidirectional cleaning, which can effectively reduce the impurity rate of the residual film collected by the machine, thereby effectively improving the residual film recovery effect.

[0006] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0007] The cam is an axially traversable device for conveying film residues, and the cam is actuated by a plurality of gears, and the cam is connected to the transmission chain of the transmission chain by a plurality of gears. The cam is connected to the transmission chain of the transmission chain by a plurality of gears, and the cam is connected to the transmission chain by a plurality of gears. The cam is connected to the transmission chain by a plurality of gears, and the cam is connected to the transmission chain by a plurality of gears.

[0008] The swing drive mechanism drives the active swing rod to swing so as to drive the guide swing rod to apply bidirectional vibration to the transmission chain through the vibration shaft and the first support shaft.

[0009] Optionally, the swing drive mechanism includes a driving cam, which is fixed to the end of the driving shaft of the chain transmission mechanism and is used to contact the end of the active swing rod connected to the swing drive mechanism with the driving cam.

[0010] Optionally, the driving cam adopts a triangular structure, and the side surfaces corresponding to the three edges of the triangular structure are concave surfaces that are recessed toward the center of the triangular structure.

[0011] Optionally, the end of the active rocker arm used to cooperate with the driving cam is provided with a bearing, and the bearing is in contact with the surface of the cam.

[0012] Optionally, the number of the guide swing rods corresponds to the number of the chain transmission mechanisms, each guide swing rod corresponds to a chain transmission mechanism, and the guide swing rod cooperates with the transmission chain of the corresponding chain transmission mechanism to apply bidirectional vibration to the transmission chain;

[0013] Furthermore, one end of the guide rocker arm corresponds to one end of the rising part of the transmission chain, and the other end corresponds to the other end of the rising part of the transmission chain.

[0014] Optionally, one end of the guide rocker arm is connected to the first support shaft via a first elastic component, and the other end is connected to the third support shaft via a second elastic component.

[0015] Optionally, the elastic component between the first support shaft and the guide swing arm comprises a first spring, one end of the first spring is fixed to the axial surface of the first support shaft, and the other end is fixed to the guide swing arm;

[0016] Furthermore, the first spring is sleeved on the outer circumference of the first guide rod and the second guide rod, the first guide rod is fixed to the first support shaft, and the second guide rod is fixed to the guide swing rod.

[0017] Optionally, the elastic component between the third support shaft and the guide swing rod comprises a second spring, one end of the second spring is fixed to the third support shaft, and the other end is fixed to the guide swing rod;

[0018] Furthermore, the second spring is sleeved on the outer circumferences of the third guide rod and the fourth guide rod, the third guide rod is fixed to the third support shaft, and the fourth guide rod is fixed to the guide swing rod.

[0019] In the second aspect, an embodiment of the present invention provides a working method of the residual film conveying device capable of bidirectional cleaning as described in the first aspect: the swing drive mechanism drives the active swing arm to swing back and forth, and the first support shaft rotates back and forth, thereby driving the guide swing arm through the elastic component to produce a reciprocating motion parallel to the chain transmission mechanism, and the reciprocating swing of the active swing arm drives the vibration shaft to move. Under the action of the vibration shaft and the elastic component, the guide swing arm produces a reciprocating motion perpendicular to the chain transmission mechanism, and the guide swing arm cooperates with the transmission chain of the chain transmission mechanism, thereby applying bidirectional vibration parallel to and perpendicular to the chain transmission mechanism to the transmission chain, thereby applying a bidirectional cleaning force to the residual film and impurities on the picking-up spring tooth assembly, and vibrating the impurities off the residual film.

[0020] In a third aspect, an embodiment of the present invention provides a residual film recovery machine, which is provided with the residual film conveying device capable of bidirectional cleaning as described in the first aspect.

[0021] The beneficial effects of the present invention are as follows:

[0022] 1. The residual film conveying device of the present invention is provided with an active swing arm and a driven swing arm parallel to each other, a connecting rod parallel to the frame body is provided between the active swing arm and the driven swing arm, thereby forming a parallelogram connecting rod mechanism, a vibration shaft is provided between the top ends of the active swing arm and the driven swing arm, a guide swing arm is provided on the outer side of the vibration shaft, and an elastic component is provided between the guide swing arm and the first support shaft and the third support shaft, when the active swing arm swings back and forth, it can drive the first support shaft to rotate back and forth, so that the guide swing arm generates a reciprocating motion parallel to the chain transmission mechanism through the elastic component, the reciprocating motion of the vibration shaft can cooperate with the elastic component, so that the guide swing arm generates a reciprocating motion perpendicular to the chain transmission mechanism, so that the guide swing arm can apply bidirectional vibration to the transmission chain, thereby vibrating impurities off the residual film, thereby realizing active impurity cleaning, and compared with the passive impurity cleaning method that simply relies on the impurities' own gravity to fall, the residual film recovery process undergoes vibration in two directions, which greatly improves the cleaning effect of mixed impurities such as crop straw and soil, and has a better impurity cleaning effect, effectively reduces the impurity content of the residual film, thereby effectively improving the residual film recovery effect.

[0023] 2. In the residual film conveying device of the present invention, one end of the guide rocker arm corresponds to one end of the rising part of the transmission chain, and the other end corresponds to the other end of the rising part of the transmission chain, so that the vertical vibration of the guide rocker arm covers both ends of the rising part of the transmission chain, and the horizontal vibration covers the entire rising stroke of the transmission chain. The vibration coverage range is wide, and the active cleaning distance is extended to the maximum extent, and the cleaning time is increased, so that the whole process of residual film rising can be cleaned, and active cleaning can be ensured in the whole cleaning stroke of the transmission conveying chain, thereby ensuring the cleaning effect, and preventing impurities from falling onto the residual film below after being vibrated above, causing the problem of re-doping.

[0024] 3. In the residual film conveying device of the present invention, the active rocker arm, the driven rocker arm, the first support shaft and the second support shaft are all installed on the fixed frame, and no additional space is required. It can be improved on the existing residual film conveying device, which is convenient and low-cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0026] Figure 1 It is a schematic diagram of the overall structure of Embodiment 1 of the present invention;

[0027] Figure 2 The structure of the cleaning device of embodiment 1 of the present invention is shown in FIG. Figure 1 ;

[0028] Figure 3 The structure of the cleaning device of embodiment 1 of the present invention is shown in FIG. Figure 2 ;

[0029] Figure 4 is a schematic diagram of the state of embodiment 1 of the present invention when it is in the lowest working position;

[0030] Figure 5 is a schematic diagram of the state of embodiment 1 of the present invention when it is in the highest working position;

[0031] Figure 6 is a schematic diagram of the state when the first elastic component of Embodiment 1 of the present invention is in the lowest working position;

[0032] Figure 7 is a schematic diagram of the state when the first elastic component of Example 1 of the present invention is in the highest working position;

[0033] Among them, 1. driving shaft, 2. debris removal device, 3. frame, 4. transmission chain, 5. driven shaft, 6. picking up spring tooth assembly;

[0034] 2-1. First support shaft, 2-2. Second support shaft, 2-3. Active rocker, 2-4. Driven rocker, 2-5. Connecting rod, 2-6. First vibration shaft, 2-7. Second vibration shaft, 2-8. Guide rocker, 2-9. First elastic component, 2-10. Third support shaft, 2-11. Second elastic component, 2-12. Cam;

[0035] 2-9-1. First spring, 2-9-2. First guide rod, 2-9-3. Second guide rod. DETAILED DESCRIPTION

[0036] For the convenience of description, if the words "upper" and "lower" appear in the present invention, they only indicate that they are consistent with the upper and lower directions of the drawings themselves, and do not limit the structure. They are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0037] Example 1

[0038] This embodiment provides a residual film conveying device capable of bidirectional cleaning. Figure 1 As shown, it includes a frame 3, on which are arranged multiple groups of chain transmission mechanisms, and the transmission chain of the chain transmission mechanism is fixed with multiple picking spring tooth assemblies 6. In this embodiment, three groups of chain transmission mechanisms are arranged on the frame 3, and the three groups of chain transmission mechanisms are arranged side by side. The chain transmission mechanism includes a driving sprocket, a driven sprocket and a transmission chain 4 wound between the rotating sprocket and the driven sprocket, wherein the driving sprocket is installed on the driving shaft 1, and the driving shaft 1 is rotatably connected to the upper end of the frame 3 through a seat bearing, and the driven sprocket is installed on the driven shaft 5, and the driven shaft 5 is rotatably connected to the lower end of the frame 3 through a seat bearing, and a power input sprocket is provided at one end of the driving shaft 1, and the power input sprocket is used to connect the power system of the tractor, thereby driving the three groups of chain transmission mechanisms to work.

[0039] The picking-up spring tooth assembly 6 includes a spring tooth installation shaft, which is fixedly connected to the transmission chain 4 and has a plurality of spring teeth arranged on the spring tooth installation shaft.

[0040] During operation, the power system of the tractor transmits power to the driving shaft 1 through the power input sprocket, thereby driving the three chain transmission mechanisms to work. When the spring teeth of the picking spring tooth assembly 6 rotate to the lowest point, they are inserted into the residual film and soil to pick up the residual film, and then drive the residual film to move backward and upward to transport the residual film.

[0041] The structure, connection method and working principle of the frame 3, chain transmission mechanism and picking spring tooth assembly 6 can adopt the technology of the existing residual film conveying device, and its further technical details are not described in detail here. This embodiment is improved on the basis of the existing residual film conveying device, and a debris cleaning device 2 is added to apply bidirectional vibration to the transmission chain to improve the debris cleaning effect.

[0042] The bidirectionality in this embodiment refers to a direction parallel to the chain transmission mechanism, i.e., a first direction, and a direction perpendicular to the chain transmission mechanism, i.e., a second direction. The first direction is parallel to the movement direction of the transmission chain, and the second direction is perpendicular to the first direction.

[0043] like Figure 2-Figure 3 As shown, the debris cleaning device includes a first support shaft 2-1 and a second support shaft 2-2, the first support shaft 2-1 and the second support shaft 2-2 are arranged in parallel, both ends of the first support shaft 2-1 are rotatably connected to the frame 3 through copper sleeves, and both ends of the second support shaft 2-2 are rotatably connected to the frame 3 through copper sleeves, and the first support shaft 2-1 and the second support shaft 2-2 can rotate around their own axes, that is, the first support shaft 2-1 rotates around the rotation point 1, and the second support shaft 2-2 rotates around the rotation point 2.

[0044] Among them, the first support shaft 2 - 1 is arranged close to the upper end of the frame 3 .

[0045] Both ends of the first support shaft 2-1 and the second support shaft 2-2 extend to the outside of the frame 3 and are connected with a parallelogram linkage mechanism. The parallelogram linkage mechanisms on both sides have the same structure and are symmetrically arranged relative to the center line of the frame distributed along the transmission direction of the chain transmission mechanism.

[0046] The structures of the parallelogram linkage mechanisms on both sides are the same, and the parallelogram linkage mechanism on one side is used as an example for explanation:

[0047] The parallelogram linkage mechanism includes an active rocker arm 2-3, a driven rocker arm 2-4 and a connecting rod 2-5.

[0048] The active swing arm 2-3 is fixedly connected to the end of the first support shaft 2-1, and the active swing arm 2-3 can swing around the fixed point 1, thereby driving the first support shaft to rotate around the rotation point 1, that is, its own axis.

[0049] In this embodiment, in the parallelogram linkage mechanism on one side, one end of the first support shaft 2-1 is fixed to the bottom end of the active rocker arm 2-3, and in the parallelogram linkage mechanism on the other side, the first support shaft 2-1 is fixed to the middle position of the active rocker arm 2-3 and the active rocker arm 2-3 is connected to the swing drive mechanism installed on the active shaft 1, and the swing drive mechanism can drive the active rocker arm 2-3 to swing back and forth.

[0050] The driven swing arm 2-4 is fixed to the end of the second support shaft 2-2. The driven swing arm can swing around the fixed point 2 under the action of the connecting rod 2-5, thereby driving the second support shaft 2-2 to rotate around its own axis, that is, around the rotation point 2.

[0051] A connecting rod 2-5 is provided between the top ends of the active swing rod 2-3 and the driven swing rod 2-4, one end of the connecting rod 2-5 is hinged to the top end of the active swing rod 2-3, and the other end of the connecting rod 2-5 is hinged to the top end of the driven swing rod 2-4.

[0052] In the parallelogram linkage mechanism on both sides, a first vibration shaft 2-6 is arranged between the top ends of the active rocker arms 2-3 on both sides of the frame 3, and a second vibration shaft 2-7 is arranged between the top ends of the driven rocker arms 2-4 on both sides of the frame. Both ends of the first vibration shaft 2-6 are respectively fixed to the top ends of the active rocker arms 2-3 on both sides, and both ends of the second vibration shaft 2-7 are respectively fixed to the top ends of the driven rocker arms 2-4 on both sides.

[0053] The active swing arm 2-3 swings back and forth, which can drive the first vibration axis 2-6 and the second vibration axis 2-7 to reciprocate, and the movement of the first vibration axis 2-6 and the second vibration axis 2-7 has sub-movements along the first direction and the second direction.

[0054] The first vibration axis 2-6 and the second vibration axis 2-7 are located on the inner side of the plurality of guide rocker arms 2-8, that is, below the guide rocker arms 2-8. The first vibration axis 2-6 and the second vibration axis 2-7 are in contact with the guide rocker arms 2-8 and can drive the guide rocker arms 2-8 to move.

[0055] In this embodiment, the number of the guide rocker rods 2-8 matches the number of the chain transmission mechanisms, and each chain transmission mechanism corresponds to a guide rocker rod 2-8, that is, three guide rocker rods 2-8 are arranged in this embodiment, and the axis of the guide rocker rod 2-8 is arranged along the transmission direction of the chain transmission mechanism. Along the transmission direction, one end of the guide rocker rod 2-8 corresponds to the upper end of the rising part of the transmission chain 4, and the other end of the guide rocker rod 2-8 corresponds to the lower end of the rising part of the transmission chain 4.

[0056] A first elastic component 2-9 is provided between one end of the guide rocker arm 2-8 and the first support shaft 2-1, a second elastic component 2-11 is provided between the other end of the guide rocker arm 2-8 and the third support shaft 2-10, both ends of the third support shaft 2-10 are rotatably connected to the frame body 3 through copper sleeves, and the third support shaft 2-10 is arranged close to the lower end of the frame body 3.

[0057] The first elastic component 2-9 and the second elastic component 2-11 have the same structure.

[0058] The first elastic component includes a first spring 2-9-1, one end of the first spring 2-9-1 is fixedly connected to the axial surface of the first support shaft 2-1, the other end of the first spring 2-9-1 is fixedly connected to the guide rocker 2-8, the first spring 2-1-1 is sleeved on the outer periphery of the first guide rod 2-9-2 and the second guide rod 2-9-3, one end of the first guide rod 2-9-2 is vertically fixed to the first support shaft 2-1, and one end of the second guide rod 2-9-3 is vertically fixed to the guide rocker 2-8.

[0059] The second elastic component 2-11 includes a second spring, one end of the second spring is fixedly connected to the axial surface of the third support shaft 2-10, the other end of the second spring is fixedly connected to the guide rocker 2-8, the second spring is sleeved on the outer periphery of the third guide rod and the fourth guide rod, one end of the third guide rod is vertically fixed to the third support shaft 2-10, and one end of the fourth guide rod is vertically fixed to the guide rocker 2-8.

[0060] The guide rocker 2-8 is arranged on the inner side, that is, the lower side, of the rising part of the transmission chain 4. The guide rocker 2-8 fits the rising part of the transmission chain 4. The movement of the guide rocker can apply vibration to the transmission chain.

[0061] In this embodiment, the guide rocker arm 2-8 is embedded in the space between the bottom of the two chain plates of the rising part of the transmission chain 4, which drives the transmission chain 4 to vibrate, and can also play a guiding and limiting role to prevent the transmission chain 4 from separating from the guide rocker arm 2-8, and prevent the transmission chain 4 from escaping from the normal working position when the guide rocker arm 2-8 is at the lowest working position, thereby solving the tension problem of the transmission chain 4.

[0062] The swing drive mechanism adopts a cam 2-12 fixed at the other end of the driving shaft. The cam 2-12 can rotate synchronously with the driving shaft 1. One end of the active swing rod 2-3 that cooperates with the swing drive mechanism is hinged to the connecting rod 2-5, and the other end is provided with a 90° bending structure. The end of the 90° bending structure is connected to a bearing, and the bearing is in contact with the outer side of the cam 2-12.

[0063] In this embodiment, the cam 2-12 adopts a triangular structure, and the side surfaces corresponding to the three edges of the triangular structure adopt a concave arc surface that is concave toward the center of the triangular structure. The center of the concave arc surface is the minimum diameter of the cam 2-12. The tip of the triangular structure adopts a circular arc surface, and the tip is the maximum diameter of the cam 2-12. The bearing contacts the outer side surface of the triangular structure. When the cam 2-12 rotates, the bearing rolls along the side surface of the triangular structure, thereby driving the active rocker arm 2-3 to swing.

[0064] Example 2

[0065] The present embodiment provides a method for cleaning impurities of a residual film conveying device capable of bidirectional cleaning as described in Embodiment 1, wherein the swing drive mechanism drives the active swing arm 2-3 to swing back and forth, and the first support shaft 2-1 rotates back and forth, thereby driving the guide swing arm 2-8 to generate a reciprocating motion in a first direction parallel to the chain transmission mechanism through the elastic component, and the reciprocating swing of the active swing arm 2-3 drives the vibration shaft to move, and under the action of the vibration shaft and the elastic component, the guide swing arm 2-8 generates a reciprocating motion in a second direction perpendicular to the chain transmission mechanism, and the guide swing arm 2-8 cooperates with the transmission chain 4 of the chain transmission mechanism, thereby applying bidirectional vibration to the transmission chain 4 parallel to and perpendicular to the chain transmission mechanism, thereby applying a bidirectional cleaning force to the residual film and impurities on the picking-up spring tooth component 6, and vibrating the impurities off the residual film.

[0066] Specific:

[0067] The active shaft 1 drives the cam 2-12 to rotate, and the bearing of the active rocker arm 2-3 alternately contacts the tip of the cam 2-12 and the concave arc surface of the cam 2-12, thereby realizing the reciprocating swing of the active rocker arm 2-3 and the driven rocker arm 2-4, and then driving the reciprocating motion of the first vibration shaft 2-6 and the second vibration shaft 2-7.

[0068] like Figure 4 As shown, this is the lowest working position of the debris cleaning device. The contact point between the cam 2-12 and the active swing rod 2-3 is located at the minimum diameter of the cam 2-12, which is the initial vibration position. The active swing rod 2-3, the connecting rod 2-5 and the driven swing rod 2-4 are at the lowest position under the action of their own weight. The first vibration axis 2-6 and the second vibration axis 2-7 are at the lowest point of vertical debris cleaning. The transmission chain 4 naturally hangs down on the guide swing rod 2-8 due to its own gravity. As the cam 2-12 rotates, the active swing rod 2-3 is pressed to rotate around the fixed point 1, and then the connecting rod 2-5 is driven to rotate upward, and the driven swing rod 2-4 is driven to rotate around the fixed point 2. When the cam 2-12 rotates to the tip and contacts the bearing, that is, Figure 5 As shown, when the debris cleaning device is at the highest working position, the first vibration shaft 2-6 and the second vibration shaft 2-7 are at the highest position, which is also the vertical debris cleaning working position. At this time, the first spring 2-9-1 and the second spring are stretched to the longest, and the contact position of the cam 2-12 and the active rocker 2-3 passes the tip, and the active rocker 2-3, the connecting rod 2-5 and the driven rocker 2-4 rotate in the opposite direction under the action of their own gravity and the elastic force of the first spring 2-9-1 and the second spring, and return to the initial vibration position of the lowest point, and the first vibration shaft 2-6 and the second vibration shaft 2-7 also return to the lowest initial position.

[0069] During the reciprocating motion of the first vibration shaft 2-6 and the second vibration shaft 2-7, a rapid impact in the second direction is formed on the transmission chain 4 through the guide rocker 2-8, completing a regular vertical debris clearing function. The cam 2-12 has three tips, so the cam completes three vertical debris clearing processes when it rotates one circle.

[0070] When the cam 2-12 rotates, the guide swing rod 2-8, the first elastic component 2-9, the second elastic component 2-11 and the frame 3 form a horizontal debris-clearing four-bar mechanism, such as Figure 4 As shown, the contact point between the cam 2-12 and the active rocker arm is located at the minimum diameter of the cam. When the active rocker arm swings, it drives the first support shaft 2-1 to rotate around its own axis, that is, to rotate around the rotation point 1, thereby driving the first elastic component 2-9 to rotate. The rotation of the first support shaft 2-1 drives the third support shaft 2-10 to rotate around its own axis through the first elastic component 2-9, the guide rocker arm 2-8 and the second elastic component 2-11, that is, the third support shaft 2-10 rotates around the rotation point 2. At the same time, the guide rocker arm 2-8 is pushed upward in the second direction by the two vibration shafts, forming a composite force obliquely upward, which has a component force along the first direction, thereby starting to produce a horizontal debris clearing effect on the transmission chain 4, as shown in FIG. Figure 5 As shown, when the tip of the cam 2-12 contacts the bearing, that is, reaches the highest working position, the guide rocker 2-8 reaches the highest position, and then begins to descend, and this cycle is repeated to form a regular horizontal debris clearing process.

[0071] like Figure 6 The figure shows the lowest working position of the first elastic component 2-9 and the second elastic component 2-11. Figure 7 The figure shows the highest working position of the first elastic component and the second elastic component. At the lowest working position, the first spring 2-9-1 and the second spring are in a natural state without tension. As the cam 2-12 rotates, the first elastic component 2-9 and the second elastic component 2-11 rotate, and the guide rocker 2-8 is pushed by the two vibration shafts along the second direction to form a composite force obliquely upward, with a component force along the first direction to achieve horizontal debris cleaning. When the highest working position is reached, the elongation of the first spring 2-9-1 and the second spring reaches the maximum value, generating a downward pulling force on the guide rocker. After the contact point between the cam 2-12 and the bearing passes the tip, the guide rocker 2-8 returns to the initial position of the lowest point under the action of the first spring 2-9-1, the second spring tension and the self-weight of the guide rocker 2-8, the active rocker 2-3, the driven rocker 2-4 and the connecting rod 2-5.

[0072] In the residual film conveying device of this embodiment, the chain transmission mechanism drives the residual film to move upward and backward. At the same time, the debris cleaning device obtains power from the cam 2-12. Under the action of the cam 2-12, the guide rocker 2-8 applies regular vibrations in the first direction and the second direction to the transmission chain 4, thereby applying cleaning forces in two directions to the residual film and impurities on the transmission chain 4, and vibrating impurities such as soil and straw off the residual film, realizing the active debris cleaning function. Compared with the passive debris cleaning method that simply relies on the impurities' own gravity to fall, the residual film undergoes vibrations in two directions during the recovery process, which greatly improves the cleaning effect of mixed impurities such as crop straw and soil, and the cleaning effect is better and more effective. The impurity content of the residual film is reduced, thereby effectively improving the residual film recovery effect. Moreover, one end of the guide rocker 2-8 corresponds to one end of the rising part of the transmission chain 4, and the other end corresponds to the other end of the rising part of the transmission chain 4, so that the vertical vibration of the guide rocker 2-8 covers both ends of the rising part of the transmission chain 4, and the horizontal vibration covers the entire rising stroke of the transmission chain 4. The vibration coverage range is wide, and the active impurity cleaning distance is maximized, the impurity cleaning time is increased, and the whole process of residual film rising is realized. It is ensured that impurities can be actively cleaned in the entire cleaning stroke of the transmission conveyor chain, thereby ensuring the impurity cleaning effect, and preventing impurities from falling onto the residual film below after being vibrated above, causing the problem of re-doping.

[0073] The debris cleaning device of this embodiment can be installed on the existing residual film conveying device without occupying additional space. It can be improved on the existing residual film conveying device, which is convenient and low-cost. The structural setting and space layout are reasonable, the structure is simple, and the function is reliable.

[0074] Example 3

[0075] This embodiment provides a residual film recovery machine, which is provided with the residual film conveying device capable of bidirectional cleaning as described in Embodiment 1. The remaining structure of the residual film recovery machine can adopt the existing technology and will not be described in detail here.

[0076] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A residual film conveying device capable of bidirectional cleaning, comprising a frame, the frame being provided with multiple sets of chain transmission mechanisms, the transmission chain of the chain transmission mechanism being provided with a picking-up spring tooth assembly, characterized in that: The frame is rotatably connected with a first support shaft and a second support shaft, an active swing rod is fixed at both ends of the first support shaft, a driven swing rod parallel to the active swing rod is fixed at both ends of the second support shaft, a connecting rod parallel to the frame is provided between the top ends of the active swing rod and the driven swing rod on the same side of the frame, a vibration shaft is provided between the top ends of the active swing rods on both sides of the frame, a vibration shaft is provided between the top ends of the driven swing rods, a guide swing rod located on the inner side of the transmission chain is provided outside the two vibration shafts, an elastic component is provided between the guide swing rod and the third support shaft rotatably connected to the first support shaft and the frame, and at least one side of the active swing rod is connected to the swing driving mechanism; The swing drive mechanism drives the active swing rod to swing so as to drive the guide swing rod to apply bidirectional vibration to the transmission chain through the vibration shaft and the first support shaft.

2. The residual film conveying device capable of bidirectional cleaning as claimed in claim 1, characterized in that: The swing drive mechanism comprises a driving cam, which is fixed to the end of the driving shaft of the chain transmission mechanism and is used for contacting the end of the active swing rod connected to the swing drive mechanism with the driving cam.

3. The residual film conveying device capable of bidirectional cleaning as claimed in claim 2, characterized in that: The driving cam adopts a triangular structure, and the side surfaces corresponding to the three edges of the triangular structure are concave surfaces that are recessed toward the center of the triangular structure.

4. The residual film conveying device capable of bidirectional cleaning as claimed in claim 2, characterized in that: The end of the active rocker arm used for cooperating with the driving cam is provided with a bearing, and the bearing contacts the surface of the cam.

5. The residual film conveying device capable of bidirectional cleaning as claimed in claim 1, characterized in that: The number of the guide swing rods corresponds to the number of the chain transmission mechanisms, each guide swing rod corresponds to a chain transmission mechanism, and the guide swing rod cooperates with the transmission chain of the corresponding chain transmission mechanism to apply bidirectional vibration to the transmission chain; Furthermore, one end of the guide rocker arm corresponds to one end of the rising part of the transmission chain, and the other end corresponds to the other end of the rising part of the transmission chain.

6. The residual film conveying device capable of bidirectional cleaning as claimed in claim 1, characterized in that: One end of the guide rocker is connected to the first support shaft through a first elastic component, and the other end is connected to the third support shaft through a second elastic component.

7. The residual film conveying device capable of bidirectional cleaning as claimed in claim 1, characterized in that: The elastic component between the first support shaft and the guide swing rod comprises a first spring, one end of the first spring is fixed to the axial surface of the first support shaft, and the other end is fixed to the guide swing rod; Furthermore, the first spring is sleeved on the outer circumference of the first guide rod and the second guide rod, the first guide rod is fixed to the first support shaft, and the second guide rod is fixed to the guide swing rod.

8. The residual film conveying device capable of bidirectional cleaning as claimed in claim 1, characterized in that: The elastic component between the third support shaft and the guide swing rod comprises a second spring, one end of the second spring is fixed to the third support shaft, and the other end is fixed to the guide swing rod; Furthermore, the second spring is sleeved on the outer circumferences of the third guide rod and the fourth guide rod, the third guide rod is fixed to the third support shaft, and the fourth guide rod is fixed to the guide swing rod.

9. A working method of the residual film conveying device capable of bidirectional cleaning according to any one of claims 1 to 8, characterized in that: The swing driving mechanism drives the active swing arm to swing back and forth, and the first support shaft rotates back and forth, thereby driving the guide swing arm to produce reciprocating motion parallel to the chain transmission mechanism through the elastic component. The reciprocating swing of the active swing arm drives the vibration shaft to move. Under the action of the vibration shaft and the elastic component, the guide swing arm produces reciprocating motion perpendicular to the chain transmission mechanism. The guide swing arm cooperates with the transmission chain of the chain transmission mechanism, thereby applying bidirectional vibration parallel to and perpendicular to the chain transmission mechanism to the transmission chain, thereby applying a bidirectional cleaning force to the residual film and impurities on the picking-up spring tooth assembly, and vibrating the impurities off the residual film.

10. A residual film recycling machine, characterized in that: A residual film conveying device capable of bidirectional cleaning is provided as described in any one of claims 1 to 8.

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