A roll-rolling type residual film recovery device capable of automatically removing a film

Abstract

The application discloses a kind of residual film recovery devices of automatic film unloading of roll binding type, including film starting roller, residual film assisting starting nail, film unloading plate, inner copper ring, outer copper ring, touch switch, touch ware, driving rod, electrostatic adsorber, rack, end cover assembly, controller, film unloading motor and the like, for helping film starting pick up and withdraw residual film, and adsorb residual film debris.The application has the beneficial effects as follows, 1) film unloading motor is brought to film unloading plate by driving rod to help pick up or exit residual film, without increasing additional motor long-time driving movement, only start film unloading motor when needed, and can adjust external power supply according to actual situation, avoid energy waste;2) the structure of the rack on both sides of film starting roller and end cover assembly is same, can install touch switch and the like on one side first, and the other side is standby, can prolong equipment service life;3) residual film is pushed out of residual film assisting starting nail by film unloading plate, avoid the influence of residual film hanging on residual film assisting starting nail on subsequent residual film film starting pick up, improve residual film pick up and recovery efficiency;4) avoid residual film debris falling by electrostatic adsorption, improve the recovery quality of residual film.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery technology, and in particular to a roller-type residual film recycling device that can automatically unload film, mainly used for picking up and recycling field mulch film and residual film debris. Background Technology

[0002] Agricultural mulching technology, due to its functions of warming, moisture retention, and yield enhancement, is beneficial to crop growth and contributes to increased production and income. Since its introduction to my country in the 1970s, it has been rapidly and widely applied in agricultural production. However, with the continuous increase in the amount of mulch film used in my country, the residual film is difficult to degrade, and the pollution persists for a long time. This not only damages soil structure and causes crop yield reduction, but also poses a significant threat to agricultural production and even affects the healthy development of my country's agriculture. Faced with the enormous and alarming "white pollution" caused by residual film left in farmland over the years, manual collection is clearly ineffective. Mechanized residual film recycling is becoming the optimal option for reducing residual film pollution.

[0003] Currently, agricultural film recycling devices on the market generally include a frame equipped with a film-lifting shovel (teeth), guide rollers, and film-collecting rollers. In actual operation, a drive motor is connected to the guide rollers or film-collecting rollers, which drives the film-collecting rollers to roll up the film. This type of film-lifting device has a complex structure, insufficient film-lifting force, and relies on an additional, long-running drive mechanism for film recycling. This wastes energy, increases the cost of film-lifting, and results in a large amount of broken film falling during the recycling process, leading to incomplete recycling, low efficiency, and continued soil pollution and impact on crop growth. In short, current residual film recycling equipment suffers from insufficient lifting force, poor film unloading effect, and a large amount of broken film falling during the film-lifting and collection process. Therefore, there is an urgent need to design a new type of residual film recycling and lifting device to solve these problems.

[0004] Film lifting, unloading, and stripping are key steps in the residual film recycling process and also represent the technical challenges. By understanding the working environment of residual film recycling, measuring the basic material properties of the residual film, and statistically analyzing the suspension velocity and friction coefficient of the residual film, the structural composition and working principle of the film unloading and delivery device were analyzed. Addressing the problems of insufficient lifting force of the film lifting mechanism, poor unloading and delivery effects, and excessive falling and broken film in residual film recycling, a device was designed that can sequentially complete the lifting, unloading, and delivery of agricultural mulch film. This invention is based on a roller-type spring-tooth residual film recycling device with evenly distributed rollers, film lifting spring tooth deformation and recovery characteristics, and automatic film unloading and delivery functions. It utilizes the active rotation of the film lifting shaft to drive the spring teeth, the elastic deformation and recovery process of the film lifting spring teeth themselves, and the unloading and delivery of the film by the unloading plate to complete the film lifting, unloading, and delivery actions, thus solving the problems of poor lifting force and effect in agricultural mulch film recycling. Summary of the Invention

[0005] To address the problems of insufficient film lifting force, poor film unloading effect, and excessive falling and broken film in existing residual film recycling equipment on the market, an innovative roller-type residual film recycling device with automatic film unloading is proposed. It mainly includes components such as film lifting roller 1, film unloading plate 2, end cap assembly 3, rotary drive shaft 4, electrostatic adsorber 5, frame 6, film unloading motor 7, controller 8, and drive rod 9.

[0006] The present invention achieves the above-mentioned technical objectives through the following technical means:

[0007] An automatic film unloading rolling residual film recycling device mainly includes a film lifting roller 1, a film unloading plate 2, an end cap assembly 3, a rotary drive shaft 4, an electrostatic adsorber 5, a frame 6, a film unloading motor 7, a controller 8, and drive rods 9. The film lifting roller 1 is made of steel with good electrical and magnetic conductivity, and its surface is provided with circumferential and linear arrays of residual film lifting nails 1-1 to help pick up the film. Each row of residual film lifting nails (1-1) is provided with two drive rod through holes (1-2) of two drive rods (9) at two positions away from the two end faces of the film lifting roller (1). A common film unloading plate 2 is installed on each row of residual film lifting nails 1-1. The film unloading plate 2 is provided with a round hole 2-1. The film unloading plate (2) is provided with two drive rod mounting holes (2-2) of two drive rods (9) at two positions away from the two end faces of the film lifting roller (1).

[0008] The end cap assembly 3 is located on both sides of the film-lifting roller 1, and includes a center hole 3-1 in the end plate flange, an inner copper ring 3-2, an outer copper ring 3-3, and a touch switch 3-4. The surfaces of the inner copper ring 3-2 and the outer copper ring 3-3 are smooth and flat to ensure good contact with the elastic brush 6-2. The touch switch 3-4 is used to control the current reversal of the film-unloading motor 7 to assist in film lifting and unloading. The inner copper ring 3-2 and the outer copper ring 3-3 are fixed to the end plate flange. Their inner ends are connected to the power lines of the electrostatic adsorber 5 and the film-unloading motor 7 through conductive posts, and their outer ends are connected to an external power source through the elastic brush 6-2 on the frame 6.

[0009] One end of the rotary drive shaft 4 is installed in the center hole 3-1 of the end plate flange, and the other end is installed in the rotary drive shaft connection hole on the frame 6.

[0010] The electrostatic adsorber 5 is fixedly installed on the inner wall of the film-lifting roller 1 and is arranged axially in a staggered manner with the group of film-unloading motors 7. Its positive and negative power lines are connected to an external power source through conductive posts, inner copper ring 3-2 and outer copper ring 3-3 of the end plate, and elastic brush 6-2.

[0011] The frame 6 has a rotary drive shaft connection hole, a contactor 6-1, and an elastic brush 6-2. The elastic brush 6-2 contacts the inner copper ring 3-2 and the outer copper ring 3-3 of the end plate, supplying external power to the electrostatic adsorber 5 and the film removal motor 7. The acute angle between the upward tail fork of the frame 6 and the frame body is 42-45 degrees. Both the frame 6 and its upward tail fork have contactors 6-1, which are used to contact the touch switch 3-4 at the corresponding position on the end plate, so that the film removal motor 7 rotates and reverses direction, helping to remove the residual film.

[0012] The unloading motor 7 is fixedly installed at both ends of the inner side of the film lifting roller 1. Two unloading motors 7 are installed for each row of residual film lifting nails 1-1. The motor shaft of the unloading motor 7 is a drive screw. The drive screw is engaged with the drive thread 9-1 of the drive rod 9. The drive rod guide post 9-3 is slidably engaged with the two drive rods on both sides of each row of residual film lifting nails 1-1 of the film lifting roller 1 through the hole 1-2. The fixing thread 9-2 of the drive rod 9 is fixedly installed with the unloading plate 2 through the drive rod mounting hole 2-2 to drive the unloading plate 2 to realize the unloading action.

[0013] The controller 8 controls the film unloading motor 7 and the electrostatic adsorber 5, etc., to help pick up and adsorb residual film, thereby improving the efficiency of residual film picking and recycling quality.

[0014] The inner copper ring 3-2 and the inner copper ring 3-4 of the end plate of the end cap assembly 3 are connected to the power lines of the electrostatic adsorber 5 and the film unloading motor 7 via conductive posts. The outer end is connected to an external power supply via the elastic brush 6-2 on the frame 6. The voltage can be adjusted by an external power supply according to the specific situation. In addition, the frame 6 on both sides of the film lifting roller 1 has the same structure as the end cap assembly 3. The touch switch 3-4 and the elastic brush 6-2 can be installed on only one side, while the other side is spared to extend the service life.

[0015] The working process of the environmentally friendly and energy-saving residual film picking and recycling device of the present invention is as follows: At the start of operation, under the action of the film unloading motor 7, the film unloading plate 2 close to the ground is in close contact with the film lifting roller 1. At this time, the film unloading motor 7 rotates to make the drive rod 9 move towards the axis of the film lifting roller 1 to help lift the film. As the film lifting roller 1 rolls forward, when the touch switch 3-4 in the end plate assembly 3 of one end of the film lifting roller 1 touches the contactor 6-1 of the frame 6, the original current direction of the corresponding film unloading motor 7 will change, causing the drive rod 9 to move away from the axis of the film lifting roller 1, thereby pushing the film unloading plate 2 to push the residual film out of the residual film lifting nail 1-1 of the film lifting roller 1. Pulled by the tractor, as the film-lifting roller 1 continues to roll forward, the touch switch 3-4 in the end cover assembly 3 contacts another contactor 6-1 on the frame 6. At this time, under the action of the controller 8, the current of the film-unloading motor 7 is reversed, thereby causing the film-unloading plate 2 to adhere tightly to the outer surface of the film-lifting roller 1, so as to facilitate the residual film lifting nail 1-1 to pick up the residual film in the field that is obstructed by crop weed roots and stems. This process is repeated, and the film-unloading plate 2 can effectively assist the residual film lifting nail 1-1 in picking up the residual film and improve the efficiency of residual film picking.

[0016] The beneficial effects of this invention are mainly as follows: 1) As the film-lifting roller 1 rotates, the film-unloading motor 7 is driven by the drive rod 9 to the film-unloading plate 2 to help pick up or remove the residual film. There is no need to add an extra motor for long-term driving motion. The control motor is only started when needed, avoiding energy waste; 2) During recycling, the residual film is pushed out of the residual film lifting nail 1-1 by the film-unloading plate 2, avoiding the impact of the residual film hanging on the residual film lifting nail on the subsequent film lifting and picking, and improving the efficiency of residual film picking and recycling; 3) The residual film debris is prevented from falling off by electrostatic adsorption, which improves the recycling quality of the residual film. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a roller-type residual film recycling device with automatic film unloading proposed in this invention.

[0018] Figure 2 This is a schematic diagram of the structure of the film-lifting roller of a roll-type residual film recycling device with automatic film unloading proposed in this invention;

[0019] Figure 3 This is a schematic diagram of the film unloading plate structure of a roller-type residual film recycling device with automatic film unloading proposed in this invention;

[0020] Figure 4 This is a schematic diagram showing the installation of the film unloading motor and electrostatic adsorber inside the film-lifting roller of the automatic film unloading roller residual film recycling device proposed in this invention.

[0021] Figure 5 This is a schematic diagram of the end plate flange structure of the end plate assembly of the automatic unloading roll-type residual film recycling device proposed in this invention.

[0022] Figure 6 This is a schematic diagram of the drive rod of a roller-type residual film recycling device with automatic film unloading proposed in this invention.

[0023] The annotations in the attached figures are explained as follows:

[0024] 1. Film lifting roller; 1-1. Residual film lifting pin; 1-2. Drive rod through hole; 2. Film unloading plate; 2-1. Round hole; 2-2. Drive rod mounting hole; 3. End cap assembly; 3-1. End plate flange center hole; 3-2. End plate inner copper ring; 3-3. Outer copper ring; 3-4. Touch switch; 4. Rotary drive shaft; 5. Electrostatic precipitator; 6. Frame; 6-1. Toucher; 6-2. Elastic brush; 7. Film unloading motor; 8. Controller; 9. Drive rod; 9-1. Drive thread; 9-2. Film unloading plate fixing thread; 9-3. Drive rod guide post. Detailed Implementation

[0025] The implementation of the technical solutions in the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The embodiments are only some embodiments of the present invention, and not all embodiments.

[0026] like Figure 1 As shown, an automatic film unloading roller-type residual film recycling device mainly includes a film-lifting roller 1, an end cap assembly 3, a rotating shaft 4, an electrostatic adsorber 5, a frame 6, a film unloading motor 7, a controller 8, and drive rods 9. The film-lifting roller 1 is made of steel with good electrical and magnetic conductivity, and its surface is provided with a circumferential linear array of residual film lifting nails 1-1 to help pick up the film. Each row of residual film lifting nails 1-1 has two drive rod through holes 1-2 on each side of the drive rods 9. The drive rod through holes 1-2 are located between the two residual film lifting nails 1-1 and the third residual film lifting nail 1-1 at the end closest to the film-lifting roller. A common film unloading plate 2 is installed on each row of residual film lifting nails 1-1. The film unloading plate 2 has two drive rod mounting holes 2-2 at each end of the film unloading plate 2. The drive rod mounting holes 2-2 are located between the two circular holes 2-1 and the third circular hole 2-1 at each end of the film unloading plate 2.

[0027] The end cap assembly 3 is located on both sides of the film-lifting roller 1, and includes a center hole 3-1 in the end plate flange, an inner copper ring 3-2, an outer copper ring 3-3, and a touch switch 3-4. The surfaces of the inner copper ring 3-2 and the outer copper ring 3-3 are smooth and flat to ensure good contact with the elastic brush 6-2. The touch switch 3-4 is used to control the current reversal of the film-unloading motor 7 to assist in film lifting and unloading. The inner copper ring 3-2 and the outer copper ring 3-3 are fixed to the end plate flange. Their inner ends are connected to the power lines of the electrostatic adsorber 5 and the film-unloading motor 7 through conductive posts, and their outer ends are connected to an external power source through the elastic brush 6-2 on the frame 6.

[0028] One end of the rotary drive shaft 4 is installed in the center hole 3-1 of the end plate flange, and the other end is installed in the rotary drive shaft connection hole on the frame 6.

[0029] The electrostatic adsorber 5 is fixedly installed on the inner wall of the film-lifting roller 1 and is arranged axially in a staggered manner with the group of film-unloading motors 7. Its positive and negative power lines are connected to an external power source through the inner copper ring 3-2 and the outer copper ring 3-3 of the end plate.

[0030] The frame 6 has a rotary drive shaft connection hole, a contactor 6-1, and an elastic brush 6-2. The elastic brush 6-2 contacts the inner copper ring 3-2 and the outer copper ring 3-3 of the end plate, supplying external power to the electrostatic adsorber 5 and the film removal motor 7. The acute angle between the upward tail fork of the frame 6 and the main support is 42-45 degrees. Both the frame 6 and its upward tail fork have contactors 6-1, which are used to contact the touch switch 3-4 at the corresponding position on the end plate, so that the film removal motor 7 rotates and reverses direction, helping to remove the residual film.

[0031] The unloading motor 7 is fixedly installed at both ends of the inner side of the film lifting roller 1. Two unloading motors 7 are installed for each row of residual film lifting nails 1-1. The motor shaft of the unloading motor 7 is a drive screw. The drive screw is engaged with the drive thread 9-1 of the drive rod 9. The drive rod guide post 9-3 is slidably engaged with the two drive rods on both sides of each row of residual film lifting nails 1-1 of the film lifting roller 1 through the hole 1-2. The fixing thread 9-2 of the drive rod 9 is fixedly installed with the unloading plate 2 through the drive rod mounting hole 2-2 to drive the unloading plate 2 to realize the unloading action.

[0032] The controller 8 controls the film unloading motor 7 and the electrostatic adsorber 5, etc., to help pick up and adsorb residual film, thereby improving the efficiency of residual film picking and recycling quality.

[0033] The working process of the environmentally friendly and energy-saving residual film picking and recycling device of the present invention is as follows:

[0034] At the start of operation, under the action of the unloading motor 7, the unloading plate 2, close to the ground, is pressed against the film lifting roller 1. At this time, the unloading motor 7 rotates to move the drive rod 9 toward the axis of the film lifting roller 1 to assist in film lifting. As the film lifting roller 1 rolls forward, when the touch switch 3-4 in the end cap assembly 3 of one end of the film lifting roller 1 touches the contactor 6-1 of the frame 6, the original current direction of the unloading motor 7 will change, causing the drive rod 9 to move away from the axis of the film lifting roller 1, thereby pushing the unloading plate 2 to push the residual film out of the residual film lifting nail 1-1 of the film lifting roller 1. Pulled by the tractor, as the film-lifting roller 1 continues to roll forward, the touch switch 3-4 in the end cover assembly 3 contacts another contactor 6-1 on the frame 6. At this time, under the action of the controller 8, the current of the film-unloading motor 7 is reversed, thereby causing the film-unloading plate 2 to adhere tightly to the outer surface of the film-lifting roller 1, so as to facilitate the residual film lifting nail 1-1 to pick up the residual film in the field that is obstructed by crop weed roots and stems. This process is repeated, and the film-unloading plate 2 can effectively assist the residual film lifting nail 1-1 in picking up the residual film and improve the efficiency of residual film picking.

[0035] The inner copper ring 3-2 and the inner copper ring 3-4 of the end plate of the end cap assembly 3 are connected to the power lines of the electrostatic adsorber 5 and the film unloading motor 7 via conductive posts. The outer end is connected to an external power supply via the elastic brush 6-2 on the frame 6. The voltage can be adjusted by an external power supply according to the specific situation. In addition, the frame 6 on both sides of the film lifting roller 1 has the same structure as the end cap assembly 3. The touch switch 3-4 and the elastic brush 6-2 can be installed on only one side, with the other side as a spare, to extend the service life.

[0036] like Figure 2 As shown, the film-lifting roller 1 is made of steel with good electrical and magnetic conductivity, and its surface is provided with residual film lifting nails 1-1 in a circumferential linear array design to help pick up the film; each row of residual film lifting nails 1-1 has two drive rod through holes 1-2 at a distance of two residual film lifting nails 1-1 from each of the two end faces of the film-lifting roller 1.

[0037] like Figure 3 As shown, the unloading plate 2 has a round hole 2-1, and the unloading plate 2 has two drive rod mounting holes 2-2 for the drive rods 9 respectively at the positions of two residual film lifting nails 1-1 at each end face of the film lifting roller 1.

[0038] like Figure 4 The electrostatic adsorber 5 is fixedly installed on the inner wall of the film-lifting roller 1 and is arranged axially in a staggered manner with the group of film-unloading motors 7. Its positive and negative power lines are connected to an external power source through the conductive post of the end cap assembly 3, the inner copper ring 3-2 and the outer copper ring 3-3 of the end plate, and the elastic brush 6-2.

[0039] The embodiments described above are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments. Any obvious improvements, substitutions or modifications that can be made by those skilled in the art without departing from the essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A self-stripping roll-pressing type residual film recycling device, comprising a film-rolling roller (1), a film-stripping plate (2), an end cover assembly (3), a rotary drive shaft (4), an electrostatic adsorber (5), a frame (6), a film-stripping motor (7), a controller (8), and a drive rod (9) component, characterized in that, The film-aiding roller (1) is made of steel material with good conductivity and magnetism, and is provided with residual film-aiding pins (1-1) arranged in circumferential and linear arrays on the surface. Two driving rod passing holes (1-2) of two driving rods (9) are respectively arranged at positions of two residual film-aiding pins (1-1) away from the two side end faces of the film-aiding roller (1) in each row of residual film-aiding pins (1-1), and a common film-removing plate (2) is installed on each row of residual film-aiding pins (1-1). The film-removing plate (2) is provided with a circular hole (2-1) and two driving rod mounting holes (2-2) of two driving rods (9) respectively arranged at positions of two residual film-aiding pins (1-1) away from the two end faces of the film-aiding roller (1). The working process of the automatic film-removing and rolling-type residual film recycling device is as follows: when starting to work, the film-removing plate (2) close to the ground is tightly attached to the film-aiding roller (1) under the action of the film-removing motor (7), at this time, the film-removing motor (7) drives the driving rods (9) to move towards the axis of the film-aiding roller (1) through rotation, so as to aid film-aiding; as the film-aiding roller (1) rolls forward, when the touch switch (3-4) in the end cover assembly (3) of one end of the film-aiding roller (1) touches the toucher (6-1) of the rack (6), the original current direction of the corresponding film-removing motor (7) will change, so that the driving rods (9) move away from the axis of the film-aiding roller (1), and then push the film-removing plate (2) to push the residual film out of the residual film-aiding pins (1-1) of the film-aiding roller (1); under the traction of the tractor, as the film-aiding roller (1) continues to roll forward, the touch switch (3-4) in the end cover assembly (3) touches another toucher (6-1) of the rack (6), at this time, the current of the film-removing motor (7) is reversed under the action of the controller (8), and then the film-removing plate (2) is tightly attached to the outer surface of the film-aiding roller (1), so as to facilitate the residual film-aiding pins (1-1) to pick up the residual film in the field hindered by crop and weed stems; in this way, the film-removing plate (2) can well assist the residual film-aiding pins (1-1) to complete the film-aiding and picking up of the residual film.

2. The self-stripping, roll-pressing type residue film recovery device according to claim 1, wherein The end cover assembly (3) is located on both sides of the film-aiding roller (1), and includes an end plate flange center hole (3-1), an end plate inner copper ring (3-2), an outer copper ring (3-3), and a touch switch (3-4). The end plate inner copper ring (3-2) and the outer copper ring (3-3) are fixed on the end plate flange, the inner side end is connected with the power supply line of the electrostatic adsorber (5) and the film-removing motor (7) through a conductive column, the outer side end surface is smooth and flat, is connected with the external power supply through the elastic brush (6-2) on the rack (6), and the voltage can be adjusted according to the actual situation.

3. The self-stripping, roll-pressing type residue film recovery device according to claim 2, wherein One end of the rotary driving shaft (4) is installed in the end plate flange center hole (3-1), and the other end is installed in the rotary driving shaft connecting hole on the rack (6).

4. The self-stripping, roll-pressing type residue film recovery device according to claim 2, wherein The electrostatic adsorber (5) is fixedly installed on the inner wall of the film-aiding roller (1) and is arranged in a circumferential staggered manner with the film-removing motor (7) in groups. The positive and negative power supply lines are connected with the external power supply through the conductive column, the end plate inner copper ring (3-2) and the outer copper ring (3-3), the elastic brush (6-2).

5. The self-stripping, roll-pressing type residue film recovery device according to claim 2, wherein The frame (6) has a rotating drive shaft connecting hole, a toucher (6-1), and an elastic brush (6-2). An external power source is in contact with the copper ring (3-2) and the outer copper ring (3-3) in the end plate through the elastic brush (6-2). The acute angle between the upward fork of the frame (6) and the main body of the frame is 42-45 degrees. The frame (6) and its upward fork are both provided with a toucher (6-1).

6. The self-stripping, roll-pressing type residue film recovery device according to claim 1, wherein The controller (8) controls the film stripping motor (7) and the electrostatic adsorber (5).

7. The self-stripping, roll-pressing type residue film recovery device according to claim 1, wherein The film stripping motor (7) is fixedly installed at the inner side of the film starting roller (1) at both ends. Two film stripping motors (7) are installed corresponding to each row of residual film assisting starting nails (1-1). The motor shaft of the film stripping motor (7) is a drive screw. The drive screw cooperates with the drive screw thread (9-1) of the drive rod (9). The drive rod guide column (9-3) is in sliding cooperation with the two drive rods on both sides of each row of residual film assisting starting nails (1-1) of the film starting roller (1) through the hole (1-2). The fixed screw thread (9-2) of the drive rod (9) is fixedly installed with the film stripping plate (2) through the drive rod mounting hole (2-2) to drive the film stripping plate (2) to realize the film stripping action.

8. The self-stripping, roll-pressing type residue film recovery device according to claim 1, wherein The drive screw thread (9-1) of the drive rod (9) cooperates with the drive screw of the film stripping motor (7). The drive rod guide column (9-3) is in sliding cooperation with the two drive rods on both sides of each row of residual film assisting starting nails (1-1) of the film starting roller (1) through the hole (1-2). The fixed screw thread (9-2) of the drive rod (9) is fixedly installed with the film stripping plate (2) through the drive rod mounting hole (2-2).

9. The self-stripping, roll-pressing type residue film recovery device according to claim 1, wherein The frame (6) on both sides of the film starting roller (1) and the end cover assembly (3) have the same structure. The touch switch can be installed on one side only, and the other side is used as a spare to increase the service life of the equipment.

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