CN110352715B

CN110352715B - Round bale wrapping equipment

Info

Publication number: CN110352715B
Application number: CN201910343191.4A
Authority: CN
Inventors: 高洪; 方啸宇; 叶凯强; 贡军; 王亚军; 高吟; 张宇华; 李静; 朱家旺; 陆洁; 齐国良; 王永强; 孙孟洋
Original assignee: Anhui Polytechnic University
Current assignee: Anhui Polytechnic University
Priority date: 2019-04-26
Filing date: 2019-04-26
Publication date: 2024-06-25
Anticipated expiration: 2039-04-26
Also published as: CN110352715A

Abstract

The invention discloses round bale wrapping equipment which comprises a main peripheral trunk device, a secondary peripheral trunk device, a main supporting device, a secondary supporting device, a wrapping executing device, a tearing film fixing device and a separation control device, wherein the main supporting device is arranged on the main peripheral trunk device and used for controlling a bale to rotate, the secondary supporting device is arranged on the secondary peripheral trunk device and matched with the main supporting device to provide support for the bale, the wrapping executing device is rotatably arranged and used for wrapping the bale, the tearing film fixing device is arranged on the main supporting device and used for cutting off a wrapping film after wrapping, and the separation control device is connected with the main peripheral trunk device and the secondary peripheral trunk device and used for controlling the secondary peripheral trunk device to rotate when the bale is released. The round bale wrapping equipment disclosed by the invention is compact in structure, can improve the wrapping work efficiency of the round bale, can realize full wrapping property bundling of the bale, and can enable bundled crops to be stored for a long time and transported for a long distance.

Description

Round bale wrapping equipment

Technical Field

The invention belongs to the technical field of bundling machines, and particularly relates to round bale wrapping equipment.

Background

At present, in the bundling operation of a round bundling machine, different bundling requirements are required to be met for different target crops, and crop byproducts with low values such as corn, rice straw and the like are required to be bundled, and the required bundling requirements are very simple, so that the round bundling machine only needs to be compacted, reduces the space and adopts a basic bundling belt to bundle on one side or bundle strips. The forage grass is high in value and high in bundling requirement, unidirectional compaction cannot be pursued for transportation, and the quality requirement of crops such as the forage grass is guaranteed, so that the value of the forage grass is not destroyed, and when the forage grass is used for the crops which are easy to loosen, the forage grass is required to be bundled by an omnibearing coating on the basis of original single-sided bundling, so that the crops similar to the forage grass can be stored for a long time, and the forage grass is convenient to transport, so that the coating bundling and the long-distance transportation consumption are realized.

Because the omnibearing coating bundling machine has high cost, complex bundling operation and low efficiency in places similar to pasture crops, people are reluctant to add an additional omnibearing coating bundling device on the basis of original requirements, thereby causing the difficulty of harvesting the pasture and other similar crops, being inconvenient to store and transport, realizing no consumption in different places and limiting the development space of agriculture and animal husbandry. If the agriculture and the pasturage are mutually connected and matched, the defect is solved by improving the structure of the bundling machine and innovating the design of the bundling machine.

Disclosure of Invention

The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides round bale wrapping equipment, and aims to improve the wrapping work efficiency of round bales.

In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: the round bale wrapping equipment comprises a main peripheral trunk device, an auxiliary peripheral trunk device, a main supporting device, an auxiliary supporting device, a wrapping executing device, a tearing film fixing device and a separation control device, wherein the main supporting device is arranged on the main peripheral trunk device and used for controlling the bale to rotate, the auxiliary supporting device is arranged on the auxiliary peripheral trunk device and matched with the main supporting device to provide support for the bale, the wrapping executing device is rotatably arranged and used for wrapping the bale, the tearing film fixing device is arranged on the main supporting device and used for cutting off a packaging film after wrapping, and the separation control device is connected with the main peripheral trunk device and the auxiliary peripheral trunk device and used for controlling the auxiliary peripheral trunk device to rotate when the bale is released.

The main supporting device comprises a first main mechanical arm, a second main mechanical arm and a main roller, wherein the first main mechanical arm and the second main mechanical arm are connected with the main peripheral trunk device, the main roller is rotatably arranged on the first main mechanical arm and the second main mechanical arm and is used for driving the bale to rotate, and the axis of the main roller is parallel to the Y direction.

The auxiliary supporting device comprises an auxiliary supporting frame, a first auxiliary mechanical arm, a second auxiliary mechanical arm and a first auxiliary roller, wherein the first auxiliary mechanical arm and the second auxiliary mechanical arm are connected with the auxiliary supporting frame, the first auxiliary roller is rotatably arranged on the first auxiliary mechanical arm and the second auxiliary mechanical arm and is used for supporting the bales, and the axis of the first auxiliary roller is parallel to the Y direction.

The auxiliary supporting device further comprises a first small arm, a second small arm and a second auxiliary roller, wherein the first small arm and the second small arm are connected with the auxiliary supporting frame, the second auxiliary roller is rotatably arranged on the first small arm and the second small arm, the axis of the second auxiliary roller is parallel to the Y direction, and the second auxiliary roller is located above the side of the first auxiliary roller.

The film coating executing device comprises a rotating frame which is rotatably arranged, a first supporting mechanism and a second supporting mechanism which are arranged on the rotating frame, a first scroll which is rotatably arranged on the first supporting mechanism and is wound with a first packaging film, and a second scroll which is rotatably arranged on the second supporting mechanism and is wound with the first packaging film, wherein the rotation center lines of the rotating frame, the first scroll and the second scroll are parallel to the X direction.

The first reel is located the first side of swivel mount, the second reel is located the second side of swivel mount, first side and second side are the opposite sides of swivel mount, and the swivel mount is U type structure and the opening orientation of swivel mount main peripheral truck device.

The tearing film fixing device comprises a first cutting component for cutting off a first packaging film and a second cutting component for cutting off a second packaging film, the main supporting device is located between the first cutting component and the second cutting component, the first cutting component comprises a first shaft sleeve movably arranged on the main peripheral trunk device, a first cutting blade arranged on the main peripheral trunk device, a first clamping shaft arranged on the first shaft sleeve and matched with the first shaft sleeve to clamp the first packaging film, and a first driving mechanism arranged on the main peripheral trunk device and used for controlling the first clamping shaft to move, and the second cutting component comprises a second shaft sleeve movably arranged on the main peripheral trunk device, a second cutting blade arranged on the main peripheral trunk device, a second clamping shaft arranged on the second shaft sleeve and matched with the second shaft sleeve to clamp the second packaging film, and a second driving mechanism arranged on the main peripheral trunk device and used for controlling the second clamping shaft to move.

The first driving mechanism comprises a first rack arranged on the first clamping shaft, a first gear meshed with the first rack, and a first motor arranged on the main peripheral trunk device and connected with the first gear, and the second driving mechanism comprises a second rack arranged on the second clamping shaft, a second gear meshed with the second rack, and a second motor arranged on the main peripheral trunk device and connected with the second gear.

The auxiliary peripheral trunk device comprises an auxiliary trunk body connected with the main peripheral trunk device, the auxiliary trunk body is of a U-shaped structure, and the coating executing device is located in the auxiliary trunk body.

The disengagement control apparatus includes first and second hydraulic cylinders coupled to the primary and secondary peripheral torso devices.

The round bale wrapping equipment disclosed by the invention is compact in structure, can improve the wrapping work efficiency of the round bale, can realize full wrapping property bundling of the bale, and can enable bundled crops to be stored for a long time and transported for a long distance.

Drawings

The present specification includes the following drawings, the contents of which are respectively:

FIG. 1 is a schematic view of the round bale wrapping apparatus of the present invention;

FIG. 2 is a schematic view of the construction of the main peripheral torso device;

FIG. 3 is a schematic view of the structure of the main support;

FIG. 4 is a schematic view of the structure of the secondary support device;

FIG. 5 is a schematic view of the construction of the envelope performing apparatus;

FIG. 6 is a schematic view of the construction of the tear film attachment means with the various faces;

FIG. 7 is a schematic view of the construction of the secondary peripheral torso device;

FIG. 8 is a schematic view of the configuration of the disengagement control;

FIG. 9 is a schematic view of the structure at another angle from the control device;

Marked in the figure as: 1. a main peripheral torso device; 1A, a first trunk arm; 1B, a first trunk groove; 1C, a first trunk shaft hole; 1D, a first axial bulge; 1E, a first boss shaft hole; 1F, second axially protruding; 1G, a second boss shaft hole; 1H, a first baffle; 1I, a first gear; 1J, a first slotting groove; 1K, a second baffle; 1L, connecting shaft; 1M, a third baffle; 1N, a second gear; 1O, a fourth baffle; 1P, a second slotting groove; 1Q, a third axial protrusion; 1R, a third boss shaft hole; 1S, a fourth boss; 1T, a fourth boss shaft hole; 1U, a second trunk arm; 1V, a second trunk groove; 1W, a second trunk shaft hole; 1X, a first guide groove; 1Y, a second guide groove; 2. a main support device; 2A, a first main mechanical arm; 2B, a main roller; 2C, a second main mechanical arm; 2D, a main rotating shaft; 2E, a driven sprocket; 2F, a first main round table; 2G, a second main round table; 2H, a first shaft hole; 2I, a second shaft hole; 3. an auxiliary supporting device; 3A, a supporting shaft; 3B, an auxiliary supporting frame; 3C, a second auxiliary round table; 3D, a first auxiliary round table; 3E, a second auxiliary mechanical arm; 3F, a first auxiliary mechanical arm; 3G, auxiliary rotating shaft; 3H, a first auxiliary roller; 3I, a second shaft hole; 3J, a first shaft hole; 3K, a second forearm; 3L, a first forearm; 3M, a second auxiliary roller; 3N, a fourth shaft hole; 3O, a third shaft hole; 4. a coating executing device; 4A, a coating executing device; 4B, a driven gear; 4C, a shaft hole; 4D, a first long boss; 4E, a first reel; 4F, a first baffle; 4G, a first packaging film; 4H, a second baffle; 4I, a second long boss; 4J, a first pressing shaft; 4K, a first short axis; 4L, a third long boss; 4M, a second reel; 4N, a third baffle; 4O, a second packaging film; 4P, a fourth baffle; 4Q, a fourth long boss; 4R, a second pressing shaft; 4S, a second short shaft; 4T, first side support bar; 4U, second side support bar; 5. a film tearing fixing device; 5A, a first shaft sleeve; 5B, a first clamping shaft body; 5C, a first rack; 5D, a first cutter groove; 5E, a second sleeve; 5F, a second clamping shaft body; 5G, a second rack; 5H, a second cutter groove; 5I, a first cutting blade; 5J, a second cutting blade; 5K, a first clamping plate; 5L, a second clamping plate; 5M, a first limiting plate; 5N, a second limiting plate; 5a, a second contact surface; 5b, the end face of the second limiting plate 5N; 5c, a second clamping surface; 5d, the end face of the second packaging film; 5e, a first contact surface; 5f, the end face of the first limiting plate 5M; 5g, a first clamping surface; 5h, the end face of the first packaging film; 5i, the end face of the third baffle; 5j, the end face of the fourth baffle; 5k, the end face of the second baffle; 5l, the end face of the first baffle; 6. a secondary peripheral torso device; 6A, a minor trunk body; 6B, a shaft hole; 6C, a motor notch; 6D, a first combined boss; 6E, a second combined boss; 6F, a first claw arm; 6G, a second claw arm; 6H, a first rotating shaft; 6I, a second rotating shaft; 7. a disengagement control device; 7A, a first hydraulic cylinder; 7B, a first piston rod; 7C, a second hydraulic cylinder 7C;7D, a second piston rod.

Detailed Description

The following detailed description of the embodiments of the invention, given by way of example only, is presented in the accompanying drawings to aid in a more complete, accurate and thorough understanding of the concepts and aspects of the invention, and to aid in its practice, by those skilled in the art.

As shown in fig. 1 to 9, the present invention provides a round bale wrapping apparatus comprising a main peripheral trunk unit 1, a sub peripheral trunk unit 6, a main supporting unit 2 provided on the main peripheral trunk unit 1 for controlling rotation of a bale, a sub supporting unit 3 provided on the sub peripheral trunk unit 6 and cooperating with the main supporting unit 2 to provide support for the bale, a wrapping performing unit 4 rotatably provided for wrapping the bale, a film tearing fixing unit 5 provided on the main supporting unit 2 for cutting a wrapping film after wrapping, and a detachment controlling unit 7 connected to the main peripheral trunk unit 1 and the sub peripheral trunk unit 6 for controlling rotation of the sub peripheral trunk unit 6 when releasing the bale.

Specifically, as shown in fig. 1 to 9, the main supporting device 2 and the auxiliary supporting device 3 are oppositely arranged, the main supporting device 2 and the auxiliary supporting device 3 are positioned on the same straight line parallel to the X direction, the bales are cylindrical, the bales after being bundled and formed by the bundling machine are moved onto the main supporting device 2 and the auxiliary supporting device 3, the main supporting device 2 and the auxiliary supporting device 3 are matched to provide supporting effect for the bales needing to be enveloped, the main supporting device 2 controls the bales to rotate around the axes thereof, the axes of the bales are parallel to the Y direction, meanwhile, the enveloping executing device 4 rotates, the enveloping executing device 4 envelopes the bales, the packaging film wraps the bales, and the rotation center line of the enveloping executing device 4 is parallel to the X direction. The Z direction is vertical, the X direction and the Y direction are horizontal, and the X direction and the Y direction are mutually perpendicular.

As shown in fig. 1 and 2, the main peripheral trunk device 1 is connected with a baler, the main peripheral trunk device 1 includes a connecting shaft 1L, and a first trunk arm 1A, a second trunk arm 1U, a first boss 1D, a second boss 1F, a third boss 1Q and a fourth boss which are disposed on the connecting shaft 1L, the connecting shaft 1L has a certain length, the connecting shaft 1L is a cylinder, the axis of the connecting shaft 1L is parallel to the Y direction, the first trunk arm 1A and the second trunk arm 1U are symmetrically disposed, and the first trunk arm 1A and the second trunk arm 1U are fixedly connected with two ends of the connecting shaft 1L respectively. The main supporting device 2 is connected with the connecting shaft 1L, the main supporting device 2 is arranged between the first trunk arm 1A and the second trunk arm 1U, the distance between the first trunk arm 1A and the second trunk arm 1U is larger than the length of the bale, and the first trunk arm 1A and the second trunk arm 1U are connected with the auxiliary peripheral trunk device 6. The first trunk arm 1A and the second trunk arm 1U are horizontally arranged, and the bottom surfaces of the first trunk arm 1A and the second trunk arm 1U are parallel to the X-Y surface. The first trunk arm 1A is provided with a first trunk shaft hole 1C and a first trunk groove 1B, the second trunk arm 1U is provided with a second trunk shaft hole 1W and a second trunk groove 1V, the first trunk shaft hole 1C and the second trunk shaft hole 1W are positioned on the same straight line parallel to the Y direction, the first trunk groove 1B and the second trunk groove 1V are also positioned on the same straight line parallel to the Y direction, the first trunk groove 1B is positioned below the side of the first trunk shaft hole 1C, the distance between the first trunk groove 1B and the axis of the connecting shaft 1L is greater than the distance between the axes of the first trunk shaft hole 1C and the connecting shaft 1L, the second trunk groove 1V is positioned below the side of the second trunk shaft hole 1W, and the distance between the first trunk groove 1V and the axis of the connecting shaft 1L is greater than the distance between the axes of the first trunk shaft hole 1W and the connecting shaft 1L.

As shown in fig. 1 and 2, the first boss 1D and the second boss 1F are fixedly connected with the connecting shaft 1L, the first boss 1D is kept at a certain distance from the first trunk arm 1A, the first boss 1D is located between the first trunk arm 1A and the second boss 1F, and the second boss 1F is kept at a certain distance from the first boss 1D; the third boss 1Q and the fourth boss 1S are fixedly connected with the connecting shaft 1L, the fourth boss 1S is kept at a certain distance from the second trunk arm 1U, the fourth boss 1S is located between the second trunk arm 1U and the third boss 1Q, the third boss 1Q is kept at a certain distance from the fourth boss 1S, and the main support device 2 is located between the second boss 1F and the third boss 1Q. The first boss 1D, the second boss 1F, the third boss 1Q and the fourth boss 1S are protruded toward the same side of the connection shaft 1L, and the first boss 1D, the second boss 1F, the third boss 1Q and the fourth boss 1S are used for being connected with a frame of the baler. The first boss shaft hole 1E is arranged on the first boss 1D, the second boss shaft hole 1G is arranged on the second boss 1F, the third boss shaft hole 1R is arranged on the third boss 1Q, the fourth boss shaft hole 1T is arranged on the fourth boss 1S, and the first boss 1D, the second boss 1F, the first boss shaft hole 1E and the second boss shaft hole 1G symmetrically form the third boss 1Q, the fourth boss 1S, the third boss shaft hole 1R and the fourth boss shaft hole 1T on the X-Z plane.

As shown in fig. 1, 3 and 4, the main supporting device 2 includes a first main mechanical arm 2A and a second main mechanical arm 2C connected to the main peripheral trunk device 1, and a main drum 2B rotatably provided on the first main mechanical arm 2A and the second main mechanical arm 2C and used for driving the bale to rotate, the main drum 2B is a cylinder, and the axis of the main drum 2B (i.e., the rotation center line thereof) is parallel to the Y direction. The first main mechanical arm 2A and the second main mechanical arm 2C are of a certain length, the first main mechanical arm 2A and the second main mechanical arm 2C are parallel, the first main mechanical arm 2A and the second main mechanical arm 2C are symmetrically arranged on the X-Z plane, one end of the first main mechanical arm 2A is fixedly connected with the connecting shaft 1L, one end of the second main mechanical arm 2C is fixedly connected with the connecting shaft 1L, the main roller 2B is mounted at the other ends of the first main mechanical arm 2A and the second main mechanical arm 2C through the main rotating shaft 2D, a first shaft hole 2H for allowing the main rotating shaft 2D to be inserted is formed in the end of the first main mechanical arm 2A, and a second shaft hole 2I for allowing the main rotating shaft 2D to be inserted is formed in the end of the second main mechanical arm 2C. The main roller 2B is located between the first main mechanical arm 2A and the second main mechanical arm 2C, the main roller 2B is located below the side of the connecting shaft 1L, the height of the main roller 2B is smaller than that of the connecting shaft 1L, and the outer circular surface of the main roller 2B is used for being in contact with the outer circular surface of the bale or a packaging film wrapped on the outer circular surface of the bale. The main roller 2B is sleeved on the main rotating shaft 2D, the main roller 2B and the main rotating shaft 2D are coaxially arranged, the main roller 2B and the main rotating shaft 2D synchronously rotate, the main rotating shaft 2D is connected with a first driving device (not shown in the figure), the first driving device is used for providing driving force for enabling the main rotating shaft 2D to rotate, and then the main roller 2B can be driven to rotate, so that the main roller 2B can finally drive the straw bales to rotate. The first driving device mainly comprises a main driving motor (the model of the motor is TSC06401C2 NL) and a chain transmission mechanism connected with the main driving motor and the main rotating shaft 2D, a driven sprocket of the chain transmission mechanism is arranged on the main rotating shaft 2D, a driving sprocket of the chain transmission mechanism is arranged on a motor shaft of the main driving motor, the main driving motor is arranged on a frame of the bundling machine, and the chain transmission mechanism is positioned outside the second main mechanical arm 2C, so that the rotation of a bale is prevented from being influenced.

As shown in fig. 1 and 4, the auxiliary supporting device 3 includes an auxiliary supporting frame 3B, a first auxiliary mechanical arm 3F and a second auxiliary mechanical arm 3E connected to the auxiliary supporting frame 3B, and a first auxiliary roller 3H rotatably disposed on the first auxiliary mechanical arm 3F and the second auxiliary mechanical arm 3E and used for providing support for the bales, where the first auxiliary roller 3H is a cylinder, and an axis (i.e., a rotation center line) of the first auxiliary roller 3H is parallel to the Y direction. The first auxiliary mechanical arm 3F and the second auxiliary mechanical arm 3E have a certain length, the first auxiliary mechanical arm 3F and the second auxiliary mechanical arm 3E are parallel, the first auxiliary mechanical arm 3F and the second auxiliary mechanical arm 3E are symmetrically arranged on the X-Z plane, the first main mechanical arm 2A and the first auxiliary mechanical arm 3F are positioned on the same straight line parallel to the X direction, the second main mechanical arm 2C and the second auxiliary mechanical arm 3E are positioned on the same straight line parallel to the X direction, the main roller 2B and the first auxiliary roller 3H are positioned on the same straight line parallel to the X direction, and the heights of the main roller 2B and the first auxiliary roller 3H are the same. One end of the first auxiliary mechanical arm 3F is fixedly connected with the auxiliary supporting frame 3B, one end of the second auxiliary mechanical arm 3E is fixedly connected with the auxiliary supporting frame 3B, the first auxiliary roller 3H is installed at the other ends of the first auxiliary mechanical arm 3F and the second auxiliary mechanical arm 3E through the auxiliary rotating shaft 3G, a first shaft hole 3J for allowing the auxiliary rotating shaft 3G to be inserted is formed in the end of the first auxiliary mechanical arm 3F, and a second shaft hole 3I for allowing the auxiliary rotating shaft 3G to be inserted is formed in the end of the second auxiliary mechanical arm 3E. The first auxiliary roller 3H is located between the first auxiliary mechanical arm 3F and the second auxiliary mechanical arm 3E, the first auxiliary roller 3H is located below the side of the auxiliary supporting frame 3B, the height of the first auxiliary roller 3H is smaller than that of the auxiliary supporting frame 3B, the outer circular surface of the first auxiliary roller 3H is used for being in contact with the outer circular surface of the bale or a packaging film wrapped on the outer circular surface of the bale, the first auxiliary roller 3H is matched with the main roller 2B, supporting effect is provided for the bale below the bale, and the distance between the first auxiliary roller 3H and the main roller 2B is smaller than the diameter of the bale.

As shown in fig. 1 and 4, the auxiliary supporting device 3 further includes a first arm 3L and a second arm 3K connected to the auxiliary supporting frame 3B, and a second auxiliary roller 3M rotatably provided on the first arm 3L and the second arm 3K, the second auxiliary roller 3M being a cylinder and having a diameter smaller than that of the first auxiliary roller 3H, an axis of the second auxiliary roller 3M (i.e., a rotation center line thereof) being parallel to the Y direction and the second auxiliary roller 3M being located above a side of the first auxiliary roller 3H, a height of the second auxiliary roller 3M being greater than a height of the first auxiliary roller 3H, a distance between an axis of the second auxiliary roller 3M and an axis of the main roller 2B being greater than a distance between an axis of the first auxiliary roller 3H and an axis of the main roller 2B. The second auxiliary roller 3M capable of freely rotating is used for limiting the bale when the main roller 2B drives the bale to rotate, the second auxiliary roller 3M is in contact with the outer circular surface of the bale or a packaging film wrapped on the outer circular surface of the bale, the second auxiliary roller 3M is used for blocking the bale, the bale is prevented from rolling down, and the reliability is improved.

As shown in fig. 1 and 4, in the inverted V-shaped structure of the auxiliary supporting frame 3B, the auxiliary supporting frame 3B is fixedly connected with the auxiliary peripheral trunk device 6 through a supporting shaft 3A, an axis of the supporting shaft 3A is perpendicular to the Y direction, one end of the supporting shaft 3A is fixedly connected with the auxiliary supporting frame 3B at a middle position in a length direction of the auxiliary supporting frame 3B, opposite ends of the first auxiliary mechanical arm 3F and the second auxiliary mechanical arm 3E are fixedly connected with the auxiliary supporting frame 3B, and the supporting shaft 3A is located at a middle position of the first auxiliary mechanical arm 3F and the second auxiliary mechanical arm 3E.

The auxiliary supporting device 3 has a simple structure, and is matched with the main supporting device 2 so as to effectively fix the position of the bale, so that the bale can stably rotate.

As shown in fig. 1, 5 and 6, the film coating executing apparatus 4 includes a rotatable rotating frame, a first supporting mechanism and a second supporting mechanism which are provided on the rotating frame, a first reel 4E which is rotatably provided on the first supporting mechanism and is wound with a first packaging film, and a second reel 4M which is rotatably provided on the second supporting mechanism and is wound with a first packaging film, and rotation center lines of the rotating frame, the first reel 4E and the second reel 4M are all parallel to the X direction. The first reel 4E is located at a first side of the rotating frame, the second reel 4M is located at a second side of the rotating frame, the first side and the second side are opposite sides of the rotating frame, the rotating frame is of a U-shaped structure, and an opening of the rotating frame faces the main peripheral trunk device 1. The rotating frame comprises a middle supporting rod, a first side supporting rod 4T and a second side supporting rod 4U which are fixedly connected with the middle supporting rod and extend towards the same side of the middle supporting rod, the middle supporting rod is oppositely arranged with a connecting shaft 1L, the first side supporting rod 4T and the second side supporting rod 4U are positioned between the middle supporting rod and the connecting shaft 1L in the X direction, the middle supporting rod has a certain length and is perpendicular to the X direction, the first side supporting rod 4T and the second side supporting rod 4U have a certain length, the first side supporting rod 4T and the second side supporting rod 4U have the same length, the length direction of the first side supporting rod 4T and the second side supporting rod 4U is in line with Y Xiang Xiangping, the first side supporting rod 4T is fixedly connected with one end of the middle supporting rod in the length direction, the second side supporting rod 4U is fixedly connected with the other end of the middle supporting rod in the length direction, the rotating center line of the rotating frame passes through the middle point of the middle supporting rod in the length direction, and a certain distance is reserved between the first side supporting rod 4T and the second side supporting rod 4U, and a grass bundle is formed. The first support mechanism is disposed on the first side support bar 4T, and the second support mechanism is disposed on the second side support bar 4U.

As shown in fig. 1, 5 and 6, the first supporting mechanism is disposed at one end of the first side supporting rod 4T near the main supporting device 2, the second supporting mechanism is disposed at one end of the second side supporting rod 4U near the main supporting device 2, the vertical distance between the first supporting mechanism and the middle supporting rod is the same as the vertical distance between the second supporting mechanism and the middle supporting rod, the first supporting mechanism and the second supporting mechanism are on the same straight line perpendicular to the X direction, and when the rotating frame rotates, the first supporting mechanism, the second supporting mechanism, the first reel 4E and the second reel 4M can be driven to rotate synchronously so as to wrap the packaging film on the bale. The first supporting mechanism comprises a first long boss 4D and a second long boss 4I, the first long boss 4D and the second long boss 4I are of a certain length, the lengths of the first long boss 4D and the second long boss 4I are the same, the length directions of the first long boss 4D and the second long boss 4I are perpendicular to the X direction, the first long boss 4D and the second long boss 4I extend towards the first side of the rotating frame, the first long boss 4D and the second long boss 4I are sequentially arranged along the length direction of the first side supporting rod 4T, one end of the first long boss 4D is fixedly connected with the first side supporting rod 4T, one end of the second long boss 4I is fixedly connected with the first side supporting rod 4T, the first long boss 4D is located between the second long boss 4I and the middle supporting rod, and the second long boss 4I is located at one end of the first side supporting rod 4T far away from the middle supporting rod. The first long boss 4D and the second long boss 4I provide a supporting effect for the first reel 4E, the first reel 4E is rotatably disposed on the first long boss 4D and the second long boss 4I, and when the first reel 4E rotates, the coiled first packaging film coiled on the first reel 4E is gradually released and coiled on the bale. The second supporting mechanism comprises a third long boss 4L and a fourth long boss, the third long boss 4L and the fourth long boss have a certain length, the length of the third long boss 4L is identical to that of the fourth long boss, the length direction of the third long boss 4L and the length direction of the fourth long boss are perpendicular to the X direction, the third long boss 4L and the fourth long boss extend towards the second side of the rotating frame, the third long boss 4L and the fourth long boss are sequentially arranged along the length direction of the second side supporting rod 4U, one end of the third long boss 4L is fixedly connected with the second side supporting rod 4U, one end of the fourth long boss is fixedly connected with the second side supporting rod 4U, the third long boss 4L is located between the fourth long boss and the middle supporting rod, and the fourth long boss is located at one end of the second side supporting rod 4U far away from the middle supporting rod. The third long boss 4L and the fourth long boss provide supporting effects for the second reel 4M, the second reel 4M is rotatably disposed on the third long boss 4L and the fourth long boss, and when the second reel 4M rotates, the coiled second package film coiled on the second reel 4M is gradually released and coiled on the bale. When the rotating frame rotates, the first reel 4E and the second reel 4M can be rotated to the lower side of the bale supported by the main drum 2B and the first sub drum 3H in sequence, and the first reel 4E and the second reel 4M can also be rotated to the upper side of the bale in sequence, so that the first wrapping film and the second wrapping film can wrap the bale.

As shown in fig. 1, 5 and 6, the first supporting mechanism further includes a first pressing shaft 4J rotatably disposed on the first long boss 4D and the second long boss 4I, an axis of the first pressing shaft 4J is parallel to an axis of the first winding shaft 4E, the first winding shaft 4E is located between the first pressing shaft 4J and the first side supporting rod 4T, the released first winding shaft 4E winds around the bale after bypassing the first pressing shaft 4J, and the first pressing shaft 4J is used for supporting the first packaging film after being unfolded, so that the packaging film is in a flat state. The second supporting mechanism further comprises a second pressing shaft 4R which is rotatably arranged on the third long boss 4L and the fourth long boss, the axis of the second pressing shaft 4R is parallel to the axis of the second winding shaft 4M, the second winding shaft 4M is located between the second pressing shaft 4R and the second side supporting rod 4U, the second winding shaft 4M in release winds the bale after bypassing the second pressing shaft 4R, and the second pressing shaft 4R is used for supporting the unfolded second packaging film to enable the packaging film to be in a flat state.

As shown in fig. 1, 5 and 6, the first reel 4E is provided with a first flap 4F and a second flap 4H, and the first packaging film wound around the first reel 4E is located between the first flap 4F and the second flap 4H. The second reel 4M is provided with a third barrier 4N and a fourth barrier 4P, and the second packaging film wound on the second reel 4M is positioned between the third barrier 4N and the fourth barrier 4P.

As shown in fig. 1,5 to 7, the rotating frame is sleeved on the supporting shaft 3A, the center of the middle supporting rod is provided with a shaft hole 4C for the supporting shaft 3A to pass through, the rotating frame is connected with a second driving device, and the second driving device is used for providing driving force for rotating the rotating frame, so that the whole coating executing device 4 can be driven to rotate, and finally the packaging film is wound on the bale. The second driving device mainly comprises an auxiliary driving motor (the model of the motor is TSC06401C2 NL) and a transmission mechanism connected with the auxiliary driving motor and the rotating frame, the transmission mechanism is a gear transmission mechanism, the transmission mechanism comprises a driving gear arranged on a motor shaft of the auxiliary driving motor and a driven gear 4B arranged on the rotating frame and meshed with the driving gear, the auxiliary driving motor provides power, the driven gear 4B is sleeved on a supporting shaft 3A and fixedly connected with a middle supporting rod of the rotating frame, the auxiliary supporting frame 3B and the driven gear 4B are respectively positioned on two opposite sides of the middle supporting rod, the auxiliary supporting frame 3B is positioned between a first side supporting rod 4T and a second side supporting rod 4U, the supporting shaft 3A provides a supporting effect for the rotating frame, the auxiliary driving motor is fixedly arranged on a trunk device 6 of the auxiliary periphery, and the axis of the auxiliary driving motor is parallel to the X direction.

In the process of wrapping the bales, the required wrapping film has light weight, thin thickness and good toughness, and the cylindrical bales are driven by the main roller 2B in the main supporting device 2 to rotate clockwise in the Y-axis negative direction (the Y-axis negative direction is the direction from the first trunk arm 1A to the second trunk arm 1U); meanwhile, looking at the X-axis negative direction (the X-axis negative direction is the direction from the middle supporting rod to the connecting shaft 1L), as the bales are fixed on the main roller 2B and the first auxiliary roller 3H for continuous rotation, the second driving device drives the rotating frame to rotate anticlockwise, and the rotating frame drives the first scroll 4E and the second scroll 4M to rotate synchronously, the initial positions of the free ends of the first packaging film and the second packaging film are respectively positioned at the middle positions of the sides of the first scroll 4E and the first pressing shaft 4J, which are close to the bales, and the middle positions of the sides of the second scroll 4M and the second pressing shaft 4R, which are close to the bales; the film coating executing device 4 rotates anticlockwise relatively in the negative direction of the X axis, and the free ends of the packaging films at the two sides are respectively fixed, so that the first packaging film and the second packaging film can both carry out film coating operation; meanwhile, as the bale rotates clockwise, under the working principle of relative motion, the coating executing device 4 is matched with the rotating bale, the first packaging film and the second packaging film are wound on the bale from opposite ends of the bale, and the full-coverage coating of the bale is realized, so that the coating process is completed. The coating executive device 4 with the structure can carry out coating on both sides, thereby greatly improving the working efficiency of coating.

As shown in fig. 1,2, 6 and 7, the tear film attachment means 5 includes a first cutting member for cutting the first packaging film and a second cutting member for cutting the second packaging film, the main support means 2 being located between the first cutting member and the second cutting member on the same straight line parallel to the Y direction, and the first cutting member and the second cutting member being located between the first side support bar 4T and the second side support bar 4U. The first cutting assembly is arranged on the main peripheral trunk device 1 and is used for cutting off the first packaging film after the film coating is finished and fixing the free end of the first packaging film so as to prepare for the next film coating. The first cutting assembly comprises a first shaft sleeve 5A movably arranged on the main peripheral trunk device 1, a first cutting blade 5I arranged on the main peripheral trunk device, a first clamping shaft arranged on the first shaft sleeve 5A and matched with the first shaft sleeve 5A to clamp the first packaging film, and a first driving mechanism arranged on the main peripheral trunk device 1 and used for controlling the first clamping shaft to move. the first clamping shaft has a certain length, the length direction of the first clamping shaft is parallel to the X direction, the first shaft sleeve 5A has a certain length, the length direction of the first shaft sleeve 5A is parallel to the X direction, the first shaft sleeve 5A is movably arranged on the connecting shaft 1L, a first guide groove 1X for accommodating the first shaft sleeve 5A is arranged on the connecting shaft 1L, the shape of the first guide groove 1X is matched with that of the first shaft sleeve 5A, the first shaft sleeve 5A is of a structure with a U-shaped cross section (the cross section is a cross section perpendicular to the length direction of the first shaft sleeve 5A), the first guide groove 1X is a U-shaped groove, the outer wall surface of the first shaft sleeve 5A is attached to the inner wall surface of the first guide groove 1X, The inside of first guide way 1X is equipped with first baffle 1H and the second baffle 1K that plays spacing effect to first axle sleeve 5A to make first guide way 1X can only be along X direction rectilinear movement, first baffle 1H and second baffle 1K are in same height and first baffle 1H and second baffle 1K are located the below of first axle sleeve 5A, and first baffle 1H and second baffle 1K contact with the bottom surface of first axle sleeve 5A, and first baffle 1H and second baffle 1K are fixed connection with two relative inner wall surfaces of first guide way 1X, and first baffle 1H and second baffle 1K are for arranging in proper order along the axial of connecting axle 1L. The opening of first axle sleeve 5A is downward, and first clamping shaft is mobilizable to set up in the inside of first axle sleeve 5A, and first clamping shaft is sliding connection with first axle sleeve 5A, and first axle sleeve 5A plays the guide effect to first clamping shaft, and first clamping shaft can drive first axle sleeve 5A and remove along X is synchronous and first clamping shaft can remove along X for first axle sleeve 5A, and first clamping shaft cooperatees with first axle sleeve 5A, can press from both sides the free end of tight first packaging film. The bottom surface of first axle sleeve 5A is equipped with the first layer board that is used for playing limiting displacement to first clamp shaft in vertical direction, and first layer board is located the below of first clamp shaft, and two first layer boards that first layer board set up parallel are in on the same straight line parallel with Y to, and two first layer boards form the blocking effect to first clamp shaft at the bottom surface opening part of first axle sleeve 5A, avoid first clamp shaft to drop. The first cutter 5I is not inserted between the first side supporting rod and the second side supporting rod, the first cutter 5I is used for cutting off the first packaging film, the packaging film wound on the grass bundle is separated from the packaging film wound on the first reel 4E, the first cutter 5I is arranged on the connecting shaft and is positioned at the position of the first guide groove, the first cutter opening groove 1J for embedding the first cutter 5I is formed in the inner circular surface of the first guide groove, the length direction of the first cutter 5I is parallel to the X direction, the first cutter 5I extends towards the bale direction, the first cutter groove 5D for allowing the first cutter 5I to pass is formed in the outer wall surface of the first shaft sleeve 5A, and the first cutter 5I is positioned on the outer side of the first shaft sleeve 5A.

As shown in fig. 1,2, 6 and 7, the first driving mechanism includes a first rack 5C disposed on the first clamping shaft, a first gear 1I meshed with the first rack 5C, and a first motor (the model of the motor is TSC06401C2 NL) disposed on the main peripheral trunk device 1 and connected with the first gear 1I, the first motor is fixedly disposed in the connecting shaft 1L, the first rack 5C is fixedly connected with the first clamping shaft, the length direction of the first rack 5C is parallel to the length direction of the first clamping shaft, the first rack 5C is disposed below the first clamping shaft, the first gear 1I is disposed below the first rack 5C, and the first rack 5C is disposed between the two first support plates. The first gear 1I is fixedly arranged on a motor shaft of the first motor, and the first gear 1I is positioned in the first guide groove 1X. When the first motor operates, the first clamping shaft is driven to do linear motion along the X direction through the gear rack mechanism.

As shown in fig. 1,2, 6 and 7, the second cutting assembly includes a second sleeve 5E movably disposed on the main peripheral trunk device 1, a second cutting blade 5J disposed on the main peripheral trunk device, a second clamping shaft disposed on the second sleeve 5E and cooperating with the second sleeve 5E to clamp the second package film, and a second driving mechanism disposed on the main peripheral trunk device 1 for controlling the movement of the second clamping shaft. The second clamping shaft has a certain length, the length direction of the second clamping shaft is parallel to the X direction, the second sleeve 5E has a certain length, the length direction of the second sleeve 5E is parallel to the X direction, the second sleeve 5E is movably arranged on the connecting shaft 1L, the connecting shaft 1L is provided with a second guide groove 1Y for accommodating the second sleeve 5E, the shape of the second guide groove 1Y is matched with that of the second sleeve 5E, the second sleeve 5E is of a U-shaped structure with a cross section (the cross section is a cross section perpendicular to the length direction of the second sleeve 5E), the second guide groove 1Y is a U-shaped groove, and an opening formed by the second guide groove 1Y on the outer circle surface of the connecting shaft 1L faces upwards, the first guide groove 1X is provided with a downward opening on the outer circular surface of the connecting shaft 1L, the outer circular surface of the second shaft sleeve 5E is attached to the inner circular surface of the second guide groove 1Y, a third baffle plate 1M and a fourth baffle plate 1O which limit the second shaft sleeve 5E are arranged in the second guide groove 1Y so that the second guide groove 1Y can only do linear motion along the X direction, the third baffle plate 1M and the fourth baffle plate 1O are positioned at the same height and are positioned above the first shaft sleeve 5A, the third baffle plate 1M and the fourth baffle plate 1O are contacted with the top surface of the second shaft sleeve 5E, the third baffle plate 1M and the fourth baffle plate 1O are fixedly connected with the two opposite inner circular surfaces of the second guide groove 1Y, The third baffle 1M and the fourth baffle 1O are sequentially arranged in the axial direction of the connecting shaft 1L. The opening of second sleeve 5E upwards, second clamp shaft is movable setting in the inside of second sleeve 5E, and second clamp shaft and second sleeve 5E are sliding connection, and second sleeve 5E and play the guide effect to the second clamp shaft, and second clamp shaft can drive second sleeve 5E and follow X and follow the removal to second sleeve 5E, and second clamp shaft and second sleeve 5E cooperate, can press from both sides the free end of second packaging film. The bottom surface of second bushing 5E is equipped with the second layer board that is used for playing the limiting displacement to the second clamp shaft in vertical direction, and the second layer board is located the top of second clamp shaft, and two second layer boards that the second layer board set up parallel are in on the same straight line that parallels with the Y to, and two second layer boards form the blocking action to the second clamp shaft at the top surface opening part of second bushing 5E, avoid the second clamp shaft to drop. The second cutter blade 5J is not inserted between the first side supporting rod and the second side supporting rod, the second cutter blade 5J is used for cutting off the second packaging film, the packaging film wound on the grass bundle is separated from the packaging film wound on the second reel 4M, the second cutter blade 5J is arranged on the connecting shaft 1L and is positioned at the position of the second guide groove, the second cutter blade 5J is embedded in the second cutter groove 1P formed in the inner circular surface of the second guide groove, the length direction of the second cutter blade 5J is parallel to the X direction, the second cutter blade 5J extends towards the grass bundle direction, the second cutter blade 5H allowing the second cutter blade 5J to pass is arranged on the outer wall surface of the second sleeve 5E, and the second cutter blade 5J is positioned on the outer side of the second sleeve 5E. The first cutting blade 5I and the second cutting blade 5J are fixedly arranged on the connecting shaft 1L, the first cutting blade 5I and the second cutting blade 5J extend towards the same side of the connecting shaft 1L, and the first cutting blade 5I and the second cutting blade 5J are located on the same side of the connecting shaft 1L as the first clamping head and the second clamping head.

As shown in fig. 1, 2, 6 and 7, the second driving mechanism includes a second rack 5G disposed on the second clamping shaft, a second gear 1N meshed with the second rack 5G, and a second motor (model of the motor is TSC06401C2 NL) disposed on the main peripheral trunk device 1 and connected with the second gear 1N, the second motor is fixedly disposed in the connecting shaft 1L, the second rack 5G is fixedly connected with the second clamping shaft, the length direction of the second rack 5G is parallel to the length direction of the second clamping shaft, the second rack 5G is disposed above the second clamping shaft, the second gear 1N is disposed above the second rack 5G, and the second rack 5G is disposed between the two second support plates. The second gear 1N is fixedly arranged on a motor shaft of the second motor, and the second gear 1N is positioned in the second guide groove 1Y. When the second motor operates, the second clamping shaft is driven to do linear motion along the X direction through the gear rack mechanism.

As shown in fig. 1, fig. 2, fig. 6 and fig. 7, the first clamping shaft comprises a first clamping shaft body 5B and a first clamping head fixedly connected with the first clamping shaft body 5B and matched with the first shaft sleeve 5A to clamp the first packaging film, the first clamping head is of an L-shaped structure and is arranged at one end of the first clamping shaft body 5B in the length direction, the first clamping shaft body 5B has a certain length, the length direction of the first clamping shaft body 5B is parallel to the X direction, the first clamping shaft body 5B is located in an inner cavity of the first shaft sleeve 5A, the first clamping shaft body 5B is in sliding connection with the first shaft sleeve 5A, the first shaft sleeve 5A plays a guiding role on the first clamping shaft body 5B, the first supporting plate is located below the first clamping shaft body 5B, and the two first supporting plates form a blocking effect on the first clamping shaft body 5B at the bottom surface opening of the first shaft sleeve 5A to prevent the first clamping shaft body 5B from falling off. The first clamping head cooperates with the first sleeve 5A to clamp the free end of the first packaging film. The first clamping head comprises a first clamping plate 5K and a first limiting plate 5M which are connected, the first clamping plate 5K is vertically arranged, the first clamping plate 5K and the first shaft sleeve 5A are oppositely arranged, the first clamping plate 5K is located on the length direction of the first shaft sleeve 5A, the lower end of the first clamping plate 5K is fixedly connected with one end of the first clamping shaft body 5B, the upper end of the first clamping plate 5K is fixedly connected with the first limiting plate 5M, the width of the first clamping plate 5K is larger than the width of an inner cavity of the first shaft sleeve 5A (the width direction of the first clamping plate 5K and the width direction of the inner cavity of the first shaft sleeve 5A are parallel to the Y direction), the first clamping plate 5K cannot enter the inner cavity of the first shaft sleeve 5A, and the first clamping plate 5K is used for being matched with the first shaft sleeve 5A so as to clamp the free end of the first packaging film. The first limiting plate 5M is located above the first clamping shaft body 5B, a certain distance is reserved between the first limiting plate 5M and the first clamping shaft body 5B, a space for accommodating the first packaging film is formed, and the first shaft sleeve 5A can be inserted between the first clamping shaft body 5B and the first limiting plate 5M to ensure that the first shaft sleeve can be matched with the first clamping plate to clamp the free end of the first packaging film.

As shown in fig. 1, fig. 2, fig. 6 and fig. 7, the second clamping shaft comprises a second clamping shaft body 5F and a second clamping head fixedly connected with the second clamping shaft body 5F and matched with the second shaft sleeve 5E to clamp the second packaging film, the second clamping head is of an L-shaped structure, the second clamping head is arranged at one end of the second clamping shaft body 5F in the length direction, the second clamping shaft body 5F has a certain length, the length direction of the second clamping shaft body 5F is parallel to the X direction, the second clamping shaft body 5F is positioned in an inner cavity of the second shaft sleeve 5E, the second clamping shaft body 5F is in sliding connection with the second shaft sleeve 5E, the second shaft sleeve 5E plays a guiding role on the second clamping shaft body 5F, the second supporting plate is positioned above the second clamping shaft body 5F, and the two second supporting plates form a blocking role on the second clamping shaft body 5F at the top surface opening of the second shaft sleeve 5E to prevent the second clamping shaft body 5F from falling off. The second clamping head cooperates with the second sleeve 5E to clamp the free end of the second packaging film. The second clamping head comprises a second clamping plate 5L and a second limiting plate 5N which are connected, the second clamping plate 5L is vertically arranged, the second clamping plate 5L and the second sleeve 5E are oppositely arranged, the second clamping plate 5L is located in the length direction of the second sleeve 5E, the upper end of the second clamping plate 5L is fixedly connected with one end of the second clamping shaft body 5F, the lower end of the second clamping plate 5L is fixedly connected with the second limiting plate 5N, the width of the second clamping plate 5L is larger than the width of an inner cavity of the second sleeve 5E (the width direction of the second clamping plate 5L and the width direction of the inner cavity of the second sleeve 5E are parallel to the Y direction), the second clamping plate 5L cannot enter the inner cavity of the second sleeve 5E, and the second clamping plate 5L is used for being matched with the second sleeve 5E so as to clamp the free end of the second packaging film. The second limiting plate 5N is located below the second clamping shaft body 5F, a certain distance is reserved between the second limiting plate 5N and the second clamping shaft body 5F, a space for accommodating the second packaging film is formed, and the second sleeve 5E can be inserted between the second clamping shaft body 5F and the second limiting plate 5N to ensure that the second sleeve can be matched with the second clamping plate to clamp the free end of the second packaging film.

As shown in fig. 1, 2, 6 and 7, when the first driving mechanism controls the first clamping shaft to move and makes the first clamping head gradually approach the connecting shaft 1L, after the first clamping head approaches the first shaft sleeve 5A, the first clamping head can apply thrust to the first shaft sleeve 5A, and the first clamping shaft drives the first shaft sleeve 5A to synchronously move, so that the first clamping shaft and the first shaft sleeve 5A are finally moved out of the rotating frame, and the influence of wrapping film winding on a bale is avoided. Similarly, when the second driving mechanism controls the second clamping shaft to move and enables the second clamping head to be gradually close to the connecting shaft 1L, after the second clamping head is close to the second sleeve 5E, the second clamping head can apply thrust to the second sleeve 5E, the second clamping shaft drives the second sleeve 5E to synchronously move, and finally the second clamping shaft and the second sleeve 5E are moved out of the rotating frame, so that the wrapping film is prevented from being wound on the bale.

As shown in fig. 1,2, 6 and 7, the first contact surface is an end surface of the first shaft sleeve 5A near the end of the first clamping head, the first clamping surface is an outer surface of the first clamping plate 5K facing the first shaft sleeve 5A, the first contact surface can be attached to the first clamping surface, and when the first contact surface is attached to the first clamping surface, the distance between the first contact surface and the first clamping surface is the minimum; after the first contact surface is separated from the first clamping surface, the distance between the first contact surface and the first clamping surface is provided with a first maximum value, which is assumed to be 6.75 cm, and the specific length can be changed according to practical situations. The second contact surface is an end surface of the second sleeve 5E, which is close to the end part of the second clamping head, the second clamping surface is an outer surface of the second clamping plate 5L, which faces the second sleeve 5E, the second contact surface can be attached to the second clamping surface, and when the second contact surface is attached to the second clamping surface, the distance between the second contact surface and the second clamping surface is the smallest; after the second contact surface is separated from the second clamping surface, the distance between the second contact surface and the second clamping surface is provided with a second maximum value, the second maximum value is assumed to be 6.75 cm, the second maximum value is the same as the first maximum value, and the specific length can be changed according to practical conditions.

When the first clamping shaft moves along the X-axis negative direction, the first clamping shaft drives the first shaft sleeve 5A to synchronously move along the X-axis negative direction when the first contact surface is overlapped with the first clamping surface, the first motor stops moving when the first contact surface moves to overlap with the end face 5l of the first baffle and the end face 5k of the second baffle, the first motor stops running at the moment, the first clamping shaft stops moving with the first shaft sleeve 5A, the first contact surface overlaps with the first clamping surface on the similar first clamping shaft, and the two surfaces are in an attaching state. The first clamping shaft further comprises a first linkage plate arranged on the first clamping shaft body 5B, the first linkage plate extends towards the upper portion of the first clamping shaft body 5B, the first shaft sleeve 5A is located between the first linkage plate and the first clamping head, the width of the first linkage plate (the width direction of the first linkage plate is parallel to the Y direction) is larger than that of the inner cavity of the first shaft sleeve 5A, the first linkage plate cannot enter the inner cavity of the first shaft sleeve 5A, and the difference value between the vertical distance between the first linkage plate and the first clamping plate 5K and the length of the first shaft sleeve 5A is a first maximum value. When the first clamping shaft moves along the positive direction of the X-axis, when the movement distance of the first clamping shaft exceeds a first maximum value, the distance between the first clamping surface and the first contact surface is the first maximum value, the first linkage plate is contacted with the first shaft sleeve 5A, and the first clamping shaft drives the first shaft sleeve 5A to synchronously move along the positive direction of the X-axis through the first linkage plate along with the continued movement of the first clamping shaft until the first clamping shaft reaches a first set position; after the first clamping axis reaches the first setting position, the vertical distance between the first contact surface and the end surface 5h of the first packaging film (the end surface 5h is the end surface of the first packaging film near the end of the first long boss 4D) and the first contact surface is greater than zero (assuming that the vertical distance is 2.52 cm, the specific length can be changed according to the actual situation), and the projection of the end surface 5h of the first packaging film on the X-Z plane is between the projection of the first contact surface on the X-Z plane and the projection of the first clamping surface on the X-Z plane.

Similarly, when the second clamping shaft moves along the negative direction of the X axis, the second clamping shaft drives the second sleeve 5E to synchronously move along the negative direction of the X axis when the second contact surface is overlapped with the second clamping surface, and when the second contact surface moves to overlap with the end face 5i of the third baffle and the end face 5j of the fourth baffle, the second motor stops moving, at the moment, the second clamping shaft stops moving with the second sleeve 5E, the second contact surface overlaps with the second clamping surface on the similar second clamping shaft, and the two surfaces are in an abutting state. The second clamping shaft further comprises a second linkage plate arranged on the second clamping shaft body 5F, the second linkage plate extends towards the lower side of the second clamping shaft body 5F, the second shaft sleeve 5E is positioned between the second linkage plate and the second clamping head, the width of the second linkage plate (the width direction of the second linkage plate is parallel to the Y direction) is larger than that of the inner cavity of the second shaft sleeve 5E, the second linkage plate cannot enter the inner cavity of the second shaft sleeve 5E, and the difference value between the vertical distance between the second linkage plate and the second clamping plate 5L and the length of the second shaft sleeve 5E is a second maximum value.

When the second clamping shaft moves along the positive direction of the X-axis, and when the movement distance of the second clamping shaft exceeds a second maximum value, the distance between the second clamping surface and the second contact surface is the second maximum value, the second linkage plate is contacted with the second sleeve 5E, and the second clamping shaft drives the second sleeve 5E to synchronously move along the positive direction of the X-axis through the second linkage plate along with the continued movement of the second clamping shaft until the second clamping shaft reaches a second set position; after the second clamping axis reaches the second setting position, the vertical distance between the second contact surface and the end surface 5d of the second packaging film (the end surface 5d is the end surface of the second packaging film near the end of the third long boss 4L) and the second contact surface is greater than zero (assuming that the vertical distance is 2.52 cm, the specific length can be changed according to the actual situation), and the projection of the end surface 5h of the second packaging film on the X-Z plane is between the projection of the second contact surface on the X-Z plane and the projection of the second clamping surface on the X-Z plane.

In actual operation, at the beginning of the first film coating, the first clamping shaft and the second clamping shaft of the film tearing fixing device 5 can be manually shifted in the negative direction of the X axis until the first clamping shaft and the second clamping shaft cannot move, the free end of the first packaging film is installed between the first clamping plate 5K and the first shaft sleeve 5A, the free end of the first packaging film is clamped by the first shaft sleeve 5A and the first clamping plate 5K, the free end of the second packaging film is installed between the second clamping plate 5L and the second shaft sleeve 5E, and the free end of the second packaging film is clamped by the second shaft sleeve 5E and the second clamping plate 5L. When the bales leave the baler and fall onto the main supporting device 2 and the auxiliary supporting device 3, the bales are driven by the main roller 2B to rotate clockwise in the negative direction of the Y axis, the coating actuating device 4 rotates anticlockwise in the negative direction of the X axis, the free ends of the first packaging film and the second packaging film are fixed, when the coating actuating device 4 moves circularly for one circle, the first motor and the second motor start to operate, the first clamping shaft and the second clamping shaft synchronously move for a small distance along the positive direction of the X axis, the free ends of the first packaging film and the second packaging film are loosened, the free ends of the first packaging film and the second packaging film are wrapped on the bales in the coating process of relative movement, As the envelope performing means 4 continues to rotate, the first reel 4E releases the first wrapping film, the second reel 4M releases the second wrapping film, and the first wrapping film and the second wrapping film are wound around the bale; when the coating executing device 4 finishes the last half circle, the first clamping shaft and the second clamping shaft move along the positive direction of the X-axis, the first clamping shaft drives the first shaft sleeve 5A to move through the first linkage plate, and the second clamping shaft drives the second shaft sleeve 5E to move through the second linkage plate until the first clamping shaft and the second clamping shaft respectively move to a first setting position and a second setting position; Then the coating executing device 4 continues to rotate for the remaining half circle and returns to the initial position, at this time, one end of the first packaging film and one end of the second packaging film are arranged on the bale, the other end of the first packaging film and the other end of the second packaging film are arranged on the coating executing device 4, the first shaft sleeve 5A and the second shaft sleeve 5E are respectively wrapped by the first packaging film and the second packaging film, a certain distance is reserved between the first contact surface of the first shaft sleeve 5A and the end surface 5h of the first packaging film, a certain distance is reserved between the second contact surface of the second shaft sleeve 5E and the end surface 5d of the second packaging film, the edge part of the first packaging film falls between the first shaft sleeve 5A and the first clamping head, and the edge part of the second packaging film falls between the second shaft sleeve 5E and the second clamping head; Then, under the action of the first driving mechanism and the second driving mechanism, the first clamping shaft and the second clamping shaft move in the X-axis negative direction, the first clamping plate 5K approaches the first shaft sleeve 5A, the second clamping plate 5L approaches the second shaft sleeve 5E, finally the first clamping plate 5K and the first shaft sleeve 5A cooperate to clamp the edge part of the first packaging film, the second clamping plate 5L and the second shaft sleeve 5E cooperate to clamp the edge part of the second packaging film, then the first clamping shaft and the second clamping shaft continue to move in the X-axis negative direction, simultaneously clamp the first packaging film and the second packaging film to move in the X-axis negative direction, and the packaging film between the first shaft sleeve 5A and the second shaft sleeve 5E and the bale is cut off by the first cutting blade 5I and the second cutting blade 5J respectively (pretension exists between the film tearing fixing device 5 and the coated bale, Can guarantee that the cutter can cut off the packaging film smoothly), make first packaging film and second packaging film and bale separation. At this point the free ends of the first and second wrapping films are re-clamped and secured in preparation for the next rotational wrapping of the wrapping actuator 4. The mounting positions of the first cutter blade 5I and the second cutter blade 5J are respectively in the first cutter groove 1J and the second cutter groove 1P on the connecting shaft 1L, and the positions of the first cutter groove 1J and the second cutter groove 1P are set in such a manner that the first guide groove 1X and the second guide groove 1Y deviate from the semicircular tip and are close to the central portion of the connecting shaft 1L. The first cutting blade 5I and the second cutting blade 5J are arranged at one end opposite to the relative movement direction of the packaging film (i.e. the retracting direction of the film tearing fixing device 5), and the width of the first cutting blade 5I is slightly wider than the height of the first packaging film close to the first shaft sleeve in the process that the first clamping shaft and the first shaft sleeve are matched to clamp the first packaging film and then move to the direction of the connecting shaft 1L until the first packaging film cannot move; the side of the first cutting blade 5I is an elongated trapezoid with a bevel in contact with the first packaging film, where the cutting edge is located. Similarly, in the process that the second clamping shaft and the second sleeve are matched to clamp the second packaging film and then move to the direction of the connecting shaft 1L until the second packaging film cannot move, the second packaging film is cut off by the second cutting blade 5J, and the width of the second cutting blade 5J is slightly wider than the height of the second packaging film close to the second sleeve; the side of the second cutting blade 5J is an elongated trapezoid having a bevel in contact with the second packaging film, which is the position of the cutting edge.

The film tearing fixing device 5 is used as the core part of the device, has simple and compact structure, can well solve the film tearing problem and the problem of clamping the strap head again, and prepares for the next rotation film coating process.

As shown in fig. 1, 8 and 9, the auxiliary peripheral trunk device 6 includes an auxiliary trunk body 6A connected to the main peripheral trunk device 1, and a first horn arm 6F and a second horn arm 6G fixedly connected to the auxiliary trunk body 6A, the auxiliary trunk body 6A has a U-shaped structure, and the coating executing device 4 is located inside the auxiliary trunk body 6A. The auxiliary trunk body 6A is sleeved on the rotating frame, the auxiliary driving motor is fixedly arranged in the auxiliary trunk body 6A, the supporting shaft 3A is fixedly connected with the auxiliary trunk body 6A, and the middle supporting rod is positioned between the auxiliary supporting frame 3B and the auxiliary trunk body 6A. The first horn arm 6F and the second horn arm 6G are oppositely arranged, the first horn arm 6F and the second horn arm 6G are fixedly connected with two opposite ends of the auxiliary trunk body 6A respectively, the first horn arm 6F and the second horn arm 6G are positioned on the same straight line parallel to the Y direction, one end of the first horn arm 6F is fixedly connected with the auxiliary trunk body 6A, the other end of the first horn arm 6F is rotationally connected with the first trunk arm 1A through a first rotating shaft 6H, the first rotating shaft 6H penetrates through a first trunk groove in the first trunk arm 1A, one end of the second horn arm 6G is rotationally connected with the auxiliary trunk body 6A through a second rotating shaft 6I, and the other end of the second horn arm 6G penetrates through a second trunk groove in the second trunk arm 1U.

As shown in fig. 1, 8 and 9, the disengagement control apparatus 7 includes a first hydraulic cylinder 7A and a second hydraulic cylinder 7C connected to the main peripheral trunk apparatus 1 and the sub-peripheral trunk apparatus 6. The first hydraulic cylinder 7A and the second hydraulic cylinder 7C are oppositely arranged, the first hydraulic cylinder 7A and the second hydraulic cylinder 7C are positioned on the same straight line parallel to the Y direction, the first hydraulic cylinder 7A and the second hydraulic cylinder 7C are positioned above the auxiliary trunk body 6A, one end of the first hydraulic cylinder 7A is rotationally connected with the auxiliary trunk body 6A, the other end of the first hydraulic cylinder 7A is rotationally connected with the first trunk arm 1A at a first trunk shaft hole, one end of the second hydraulic cylinder 7C is rotationally connected with the auxiliary trunk body 6A, the other end of the second hydraulic cylinder 7C is rotationally connected with the second trunk arm 1U at a second trunk shaft hole, and the first hydraulic cylinder 7A and the second hydraulic cylinder 7C synchronously stretch out and draw back. When the sub-trunk body 6A is in the initial position, the sub-trunk body 6A is in a horizontal state, the bottom surface of the sub-trunk body 6A is parallel to the bottom surface of the main peripheral trunk device 1, and the main drum 2B and the first sub-drum 3H are at the same height. After the bale wrapping is completed, the bale is required to be separated from the main supporting device 2 and the auxiliary supporting device 3 for the wrapping work of the next bale, so that the auxiliary peripheral trunk device 6 is required to be rotated downwards to be in an inclined state, and the auxiliary peripheral trunk device 6 drives the auxiliary supporting device 3 to synchronously rotate downwards, so that the height of the first auxiliary roller 3H is reduced, the bale which is wrapped can roll downwards and be separated from the main supporting device 2 and the auxiliary supporting device 3, and the bale releasing operation is facilitated. When the first hydraulic cylinder 7A and the second hydraulic cylinder 7C extend, the auxiliary trunk body 6A can be pushed to rotate downwards, so that the auxiliary peripheral trunk device 6 is switched from a horizontal state to an inclined state; when the first hydraulic cylinder 7A and the second hydraulic cylinder 7C shrink, the auxiliary trunk body 6A can be pulled to rotate upwards, so that the auxiliary peripheral trunk device 6 is switched from an inclined state to a horizontal state, the auxiliary peripheral trunk device 6 and the auxiliary supporting device 3 are restored to an initial state, and preparation is continued for the next coating.

The round bale wrapping device with the structure has the following advantages:

(1) The round bale wrapping equipment can realize full wrapping type baling of the bales, so that the baled crops can be stored for a long time and transported for a long distance;

(2) Unlike the traditional tape winding device which can only realize single-side tape winding and bundling, the wrapping film is arranged on both sides of the wrapping film executing device 4 in the round bale wrapping device, so that the wrapping film efficiency can be improved in multiple; on the other hand, the structure of the two sides can also greatly reduce the rotation inertia of the coating executive device 4, so that the coating work is more stable;

(3) The adopted film tearing fixing device 5 is compact in structure, simple in function of realizing tearing and clamping and capable of meeting requirements well.

The invention is described above by way of example with reference to the accompanying drawings. It will be clear that the invention is not limited to the embodiments described above. As long as various insubstantial improvements are made using the method concepts and technical solutions of the present invention; or the invention is not improved, and the conception and the technical scheme are directly applied to other occasions and are all within the protection scope of the invention.

Claims

1. The round bale wrapping equipment is characterized by comprising a main peripheral trunk device, a secondary peripheral trunk device, a main supporting device, a secondary supporting device, a wrapping executing device, a tearing film fixing device and a separation control device, wherein the main supporting device is arranged on the main peripheral trunk device and used for controlling the bale to rotate;

The film coating executing device comprises a rotary frame, a first supporting mechanism, a second supporting mechanism, a first reel and a second reel, wherein the rotary frame is rotatably arranged, the first supporting mechanism and the second supporting mechanism are arranged on the rotary frame, the first reel is rotatably arranged on the first supporting mechanism and is wound with a first packaging film, the second reel is rotatably arranged on the second supporting mechanism and is wound with a first packaging film, the rotation center lines of the rotary frame, the first reel and the second reel are parallel to the X direction, the first reel is positioned on a first side of the rotary frame, the second reel is positioned on a second side of the rotary frame, and the rotary frame comprises a middle supporting rod, a first side supporting rod and a second side supporting rod which are fixedly connected with the middle supporting rod and extend towards the same side of the middle supporting rod;

The tearing film fixing device comprises a first cutting component for cutting the first packaging film and a second cutting component for cutting the second packaging film, the main supporting device is positioned between the first cutting component and the second cutting component, the first cutting component and the second cutting component are positioned on the same straight line parallel to the Y direction, and the first cutting component and the second cutting component are positioned between the first side supporting rod and the second side supporting rod; the first cutting assembly is arranged on the main peripheral trunk device and is used for cutting off the first packaging film after the film coating is finished and fixing the free end of the first packaging film so as to prepare for the next film coating;

The first cutting assembly comprises a first shaft sleeve movably arranged on the main peripheral trunk device, a first cutting blade arranged on the main peripheral trunk device, a first clamping shaft arranged on the first shaft sleeve and matched with the first shaft sleeve to clamp the first packaging film, and a first driving mechanism arranged on the main peripheral trunk device and used for controlling the first clamping shaft to move; the first shaft sleeve is provided with a certain length, the length direction of the first shaft sleeve is parallel to the X direction, the first shaft sleeve is movably arranged on the connecting shaft, the connecting shaft is provided with a first guide groove for accommodating the first shaft sleeve, the shape of the first guide groove is matched with that of the first shaft sleeve, the first shaft sleeve is of a U-shaped structure in cross section, the first guide groove is a U-shaped groove, the outer wall surface of the first shaft sleeve is attached to the inner wall surface of the first guide groove, a first baffle plate and a second baffle plate which play a limiting role on the first shaft sleeve are arranged in the first guide groove, so that the first guide groove can only do linear motion along the X direction, the first baffle plate and the second baffle plate are positioned at the same height and are positioned below the first shaft sleeve, the first baffle plate and the second baffle plate are in contact with the bottom surface of the first shaft sleeve, the first baffle plate and the second baffle plate are fixedly connected with the two opposite inner wall surfaces of the first guide groove, and the first baffle plate and the second baffle plate are sequentially arranged along the axial direction of the connecting shaft; the opening of the first shaft sleeve is downward, the first clamping shaft is movably arranged in the first shaft sleeve, the first clamping shaft is in sliding connection with the first shaft sleeve, the first shaft sleeve plays a guiding role on the first clamping shaft, the first clamping shaft can drive the first shaft sleeve to synchronously move along the X direction, the first clamping shaft can move along the X direction relative to the first shaft sleeve, and the first clamping shaft is matched with the first shaft sleeve and can clamp the free end of the first packaging film;

The bottom surface of the first shaft sleeve is provided with a first supporting plate used for limiting the first clamping shaft in the vertical direction, the first supporting plate is positioned below the first clamping shaft, the first supporting plate is provided with two parallel first supporting plates which are positioned on the same straight line parallel to the Y direction, and the two first supporting plates form a blocking effect on the first clamping shaft at the opening of the bottom surface of the first shaft sleeve so as to prevent the first clamping shaft from falling off; the first cutting blade is not inserted between the first side supporting rod and the second side supporting rod, the first cutting blade is used for cutting off the first packaging film, the packaging film wound on the grass bundle is separated from the packaging film wound on the first reel, the first cutting blade is arranged on the connecting shaft and is positioned at the position of the first guide groove, the first cutting blade is embedded in the first cutting groove on the inner circular surface of the first guide groove, the length direction of the first cutting blade is parallel to the X direction, the first cutting blade extends towards the grass bundle direction, the first cutting groove for allowing the first cutting blade to pass through is formed on the outer wall surface of the first shaft sleeve, and the first cutting blade is positioned at the outer side of the first shaft sleeve;

The first driving mechanism comprises a first rack arranged on the first clamping shaft, a first gear meshed with the first rack, and a first motor arranged on the main peripheral trunk device and connected with the first gear, wherein the first motor is fixedly arranged in the connecting shaft, the first rack is fixedly connected with the first clamping shaft, the length direction of the first rack is parallel to the length direction of the first clamping shaft, the first rack is positioned below the first clamping shaft, the first gear is positioned below the first rack, and the first rack is positioned between two first supporting plates; the first gear is fixedly arranged on a motor shaft of the first motor and is positioned in the first guide groove; when the first motor operates, the first clamping shaft is driven to do linear motion along the X direction through the gear rack mechanism;

The second cutting assembly comprises a second sleeve movably arranged on the main peripheral trunk device, a second cutting blade arranged on the main peripheral trunk device, a second clamping shaft arranged on the second sleeve and matched with the second sleeve to clamp the second packaging film, and a second driving mechanism arranged on the main peripheral trunk device and used for controlling the second clamping shaft to move; the second clamping shaft is provided with a certain length, the length direction of the second clamping shaft is parallel to the X direction, the second sleeve is provided with a certain length, the length direction of the second sleeve is parallel to the X direction, the second sleeve is movably arranged on the connecting shaft, the connecting shaft is provided with a second guide groove for accommodating the second sleeve, the shape of the second guide groove is matched with that of the second sleeve, the second sleeve is of a U-shaped cross section structure, the second guide groove is a U-shaped groove, an opening formed on the outer circular surface of the connecting shaft by the second guide groove is upward, an opening formed on the outer circular surface of the connecting shaft by the first guide groove is downward, the outer circular surface of the second sleeve is attached to the inner circular surface of the second guide groove, a third baffle plate and a fourth baffle plate which have a limiting effect on the second sleeve are arranged inside the second guide groove, so that the second guide groove can only do linear motion along the X direction, the third baffle plate and the fourth baffle plate are positioned at the same height, the third baffle plate and the fourth baffle plate are positioned above the first sleeve, the third baffle plate and the fourth baffle plate are contacted with the top surface of the second sleeve, the third baffle plate and the fourth baffle plate are sequentially arranged along the axial direction of the second baffle plate and the fourth baffle plate and the second baffle plate are fixedly connected with the inner circular baffle plate; the second clamping shaft is movably arranged in the second sleeve, is in sliding connection with the second sleeve and plays a guiding role on the second sleeve, can drive the second sleeve to synchronously move along the X direction and can move along the X direction relative to the second sleeve, and is matched with the second sleeve to clamp the free end of the second packaging film; the bottom surface of the second sleeve is provided with a second supporting plate which is used for limiting the second clamping shaft in the vertical direction, the second supporting plate is positioned above the second clamping shaft, two parallel second supporting plates are arranged on the same straight line parallel to the Y direction, and the two second supporting plates form a blocking effect on the second clamping shaft at the opening of the top surface of the second sleeve so as to prevent the second clamping shaft from falling off; the second cutter blade is not inserted between the first side supporting rod and the second side supporting rod, the second cutter blade is used for cutting off the second packaging film, the packaging film wound on the grass bundle is separated from the packaging film wound on the second reel, the second cutter blade is arranged on the connecting shaft and is positioned at the position of the second guide groove, the second cutter blade is embedded in the second cutter groove P, the length direction of the second cutter blade is parallel to the X direction, the second cutter blade extends towards the direction of the grass bundle, the second cutter groove for the second cutter blade to pass through is arranged on the outer wall surface of the second sleeve, and the second cutter blade is positioned at the outer side of the second sleeve; the first cutter blade and the second cutter blade are fixedly arranged on the connecting shaft and extend towards the same side of the connecting shaft, and the first cutter blade and the second cutter blade are positioned on the same side of the connecting shaft as the first clamping head and the second clamping head;

The second driving mechanism comprises a second rack arranged on the second clamping shaft, a second gear meshed with the second rack, and a second motor arranged on the main peripheral trunk device and connected with the second gear, the second motor is fixedly arranged in the connecting shaft, the second rack is fixedly connected with the second clamping shaft, the length direction of the second rack is parallel to the length direction of the second clamping shaft, the second rack is positioned above the second clamping shaft, the second gear is positioned above the second rack, and the second rack is positioned between two second supporting plates; the second gear is fixedly arranged on a motor shaft of the second motor and is positioned in the second guide groove; when the second motor operates, the second clamping shaft is driven to do linear motion along the X direction through the gear rack mechanism;

The first clamping shaft comprises a first clamping shaft body and a first clamping head which is fixedly connected with the first clamping shaft body and is matched with the first shaft sleeve to clamp the first packaging film, the first clamping head is of a structure, the first clamping head is arranged at one end of the first clamping shaft body in the length direction, the length direction of the first clamping shaft body is parallel to the X direction, the first clamping shaft body is positioned in an inner cavity of the first shaft sleeve, the first clamping shaft body is in sliding connection with the first shaft sleeve, the first shaft sleeve guides the first clamping shaft body, the first supporting plate is positioned below the first clamping shaft body, and the two first supporting plates form a blocking effect on the first clamping shaft body at the opening of the bottom surface of the first shaft sleeve to prevent the first clamping shaft body from falling off; the first clamping head is matched with the first shaft sleeve and can clamp the free end of the first packaging film;

The first clamping head comprises a first clamping plate and a first limiting plate which are connected, the first clamping plate is vertically arranged, the first clamping plate and the first shaft sleeve are oppositely arranged, the first clamping plate is positioned in the length direction of the first shaft sleeve, the lower end of the first clamping plate is fixedly connected with one end of the first clamping shaft body, the upper end of the first clamping plate is fixedly connected with the first limiting plate, the width of the first clamping plate is larger than that of an inner cavity of the first shaft sleeve, the first clamping plate cannot enter the inner cavity of the first shaft sleeve, and the first clamping plate is used for being matched with the first shaft sleeve so as to clamp the free end of the first packaging film; the first limiting plate is positioned above the first clamping shaft body, a certain distance is reserved between the first limiting plate and the first clamping shaft body, a space for accommodating the first packaging film is formed, and the first shaft sleeve can be inserted between the first clamping shaft body and the first limiting plate, so that the first shaft sleeve can be matched with the first clamping plate to clamp the free end of the first packaging film;

The second clamping shaft comprises a second clamping shaft body and a second clamping head which is fixedly connected with the second clamping shaft body and is matched with the second shaft sleeve to clamp the second packaging film, the second clamping head is of a structure, the second clamping head is arranged at one end of the second clamping shaft body in the length direction, the second clamping shaft body has a certain length, the length direction of the second clamping shaft body is parallel to the X direction, the second clamping shaft body is positioned in an inner cavity of the second shaft sleeve, the second clamping shaft body is in sliding connection with the second shaft sleeve, the second shaft sleeve plays a guiding role on the second clamping shaft body, the second supporting plate is positioned above the second clamping shaft body, and the two second supporting plates form a blocking role on the second clamping shaft body at the top surface opening of the second shaft sleeve to prevent the second clamping shaft body from falling off; the second clamping head is matched with the second sleeve and can clamp the free end of the second packaging film;

The second clamping head comprises a second clamping plate and a second limiting plate which are connected, the second clamping plate is vertically arranged, the second clamping plate and the second sleeve are oppositely arranged, the second clamping plate is positioned in the length direction of the second sleeve, the upper end of the second clamping plate is fixedly connected with one end of the second clamping shaft body, the lower end of the second clamping plate is fixedly connected with the second limiting plate, the width of the second clamping plate is larger than that of the inner cavity of the second sleeve, the second clamping plate cannot enter the inner cavity of the second sleeve, and the second clamping plate is used for being matched with the second sleeve so as to clamp the free end of the second packaging film; the second limiting plate is positioned below the second clamping shaft body, a certain distance is reserved between the second limiting plate and the second clamping shaft body, a space for accommodating the second packaging film is formed, and the second sleeve can be inserted between the second clamping shaft body and the second limiting plate, so that the second sleeve can be matched with the second clamping plate to clamp the free end of the second packaging film;

When the first driving mechanism controls the first clamping shaft to move and enables the first clamping head to be gradually close to the connecting shaft, after the first clamping head is close to the first shaft sleeve, the first clamping head can apply thrust to the first shaft sleeve, the first clamping shaft drives the first shaft sleeve to synchronously move, and finally the first clamping shaft and the first shaft sleeve are moved out of the rotating frame, so that the influence on wrapping films wound on a bale is avoided; likewise, when the second driving mechanism controls the second clamping shaft to move and enables the second clamping head to be gradually close to the connecting shaft, after the second clamping head is close to the second sleeve, the second clamping head can apply thrust to the second sleeve, the second clamping shaft drives the second sleeve to synchronously move, and finally the second clamping shaft and the second sleeve are moved out of the rotating frame, so that the packaging film is prevented from being wound on the bale.

2. The round bale wrapping machine of claim 1, wherein said main support means comprises first and second main robotic arms coupled to said main peripheral torso means and a main drum rotatably disposed on said first and second main robotic arms for driving the bale in rotation, the axis of the main drum being parallel to the Y-direction.

3. The round bale wrapping machine of claim 2, wherein the secondary support means comprises a secondary support frame, a first secondary mechanical arm and a second secondary mechanical arm connected to the secondary support frame, and a first secondary roller rotatably disposed on the first secondary mechanical arm and the second secondary mechanical arm and adapted to provide support for the bale, the axis of the first secondary roller being parallel to the Y-direction.

4. A round bale wrapping machine according to claim 3, characterised in that said secondary support means further comprises a first and a second small arm connected to said secondary support frame and a second secondary drum rotatably arranged on said first and second small arm, the axis of the second secondary drum being parallel to the Y-direction and the second secondary drum being located laterally above said first secondary drum.

5. The round bale wrapping apparatus of any one of claims 1-4, wherein said secondary peripheral trunk means comprises a secondary trunk body connected to said primary peripheral trunk means, said secondary trunk body being of U-shaped configuration, said wrapping executing means being located inside said secondary trunk body.

6. The round bale wrapping device of claim 5, wherein the auxiliary trunk is sleeved on the rotating frame, the auxiliary driving motor is fixedly arranged in the auxiliary trunk, the supporting shaft is fixedly connected with the auxiliary trunk, the middle supporting rod is positioned between the auxiliary supporting frame and the auxiliary trunk, the first horn arm and the second horn arm are oppositely arranged and are fixedly connected with two opposite ends of the auxiliary trunk respectively, the first horn arm and the second horn arm are positioned on the same straight line parallel to the Y direction, one end of the first horn arm is fixedly connected with the auxiliary trunk, the other end of the first horn arm is rotatably connected with the first trunk arm through a first rotating shaft, the first rotating shaft penetrates through a first trunk groove in the first trunk arm, one end of the second horn arm is fixedly connected with the auxiliary trunk, the other end of the second horn arm is rotatably connected with the second arm through a second rotating shaft, and the second rotating shaft penetrates through a second trunk groove in the second trunk arm.

7. A round bale wrapping apparatus according to any of claims 1-4, characterised in that said disengagement control means comprises a first and a second hydraulic cylinder connected to said primary and secondary peripheral trunk means.

8. The round bale wrapping device of claim 7, wherein the first hydraulic cylinder and the second hydraulic cylinder are oppositely arranged and are positioned on the same straight line parallel to the Y direction, the first hydraulic cylinder and the second hydraulic cylinder are positioned above the auxiliary trunk body, one end of the first hydraulic cylinder is rotationally connected with the auxiliary trunk body, the other end of the first hydraulic cylinder is rotationally connected with the first trunk arm at a first trunk shaft hole, one end of the second hydraulic cylinder is rotationally connected with the auxiliary trunk body, the other end of the second hydraulic cylinder is rotationally connected with the second trunk arm at a second trunk shaft hole, and the first hydraulic cylinder and the second hydraulic cylinder synchronously extend and retract; when the auxiliary trunk body is at the initial position, the auxiliary trunk body is in a horizontal state, the bottom surface of the auxiliary trunk body is parallel to the bottom surface of the main peripheral trunk device, and the main roller and the first auxiliary roller are at the same height.