Residual film recovery device

Abstract

The utility model discloses a residual film recovery device, and relates to the technical field of residual film recovery. A power mechanism is arranged at the top of a rack and is in transmission connection with a film pricking mechanism and a film withdrawing mechanism through a belt; the film cutting mechanism is arranged on the lower portion of the front side of the rack and rotationally connected with the rack. The film collecting box is arranged on the rear side of the rack, and the film shoveling mechanism is fixed to the front side of the film collecting box and extends to the position below the film pricking mechanism towards the front edge. The film pricking mechanism is rotationally connected with the rack through a cam shaft, and telescopic teeth on the cam shaft prick residual films along with rotation of the cam shaft. The film withdrawing mechanism is arranged on the machine frame and located above the rear side of the film pricking mechanism, and the edge of the film withdrawing mechanism rotates to be matched with the telescopic teeth to scrape off residual films and send the residual films into the film collecting box. Film cutting, film shoveling, film picking, film scraping and film collecting are integrated, and rotation operation is achieved by connecting an input shaft of a tractor and a residual film recycling device through a coupler in the whole process. The whole device is simple and compact in structure, easy to operate, high in interchangeability, easy to assemble and high in film removing rate.

Description

Technical Field

[0001] The utility model relates to the technical field of residual film recovery, in particular to a residual film recovery device. Background Art

[0002] At present, there are two main types of residual film recovery devices: one is to use a film-raising mechanism to gather the residual film; the other is to use a roller with a telescopic gear rod to tie up the residual film and collect it; because the thickness of the film is very small, within the range of 0.01+0.001mm, the film is very easy to be damaged, and the aging caused by wind and sun makes recycling more difficult.

[0003] The residual film recycling machines on the market currently face difficulties: the stability and practicality of the residual film recycling devices have not been further improved, the pick-up rate is low, the mechanical efficiency is low, and the recycling cost is high. There is an urgent need to develop a high-efficiency, high-stability, and low-cost agricultural residual film recycling device.

[0004] The current level of mechanized recovery of residual film is not mature enough. In the process of collection, soil, weeds, etc. will be mixed with the residual film, which is not conducive to sorting out the residual film separately. This process will consume a lot of labor and has low efficiency. If a machine for sorting residual film is to be specially developed, it will cost a lot of money. Even if it can be developed, it will not be able to open the market. Therefore, it is extremely necessary to develop a device specifically for recycling residual film, which can separate weeds, soil, etc. during the recycling process.

[0005] The current drum-type residual film recovery device is too complicated and bulky, and it is difficult to clean, repair and maintain it. Many of the machines developed are used for large-scale crop planting. For farmers with small crop planting areas, due to the high cost of mechanical recovery, manual cleaning of residual film is labor-intensive and inefficient, and even worse, it may not be able to clean the residual film in time, delaying the farming season and affecting the harvest; therefore, it is urgent and meaningful to study a low-cost, convenient and practical drum-type agricultural residual film recovery machine. For this type of film removal device, since its telescopic gear rod is welded, if a gear rod is bent by hard objects such as stones buried in the ground during the residual film removal and cannot be retracted, the damaged parts cannot be repaired or replaced in time, which will affect normal work, and the residual film cannot be cleaned in time, delaying the farming season.

[0006] Therefore, a residual film recovery device has become an urgent problem to be solved. Utility Model Content

[0007] The technical problem to be solved by the utility model is to provide a residual film recovery device which can be applicable to popular agricultural devices in various regions, can meet the most basic requirements for recovering and removing agricultural residual films, has a simple structural design, is easy to operate, has strong flexibility, and has a high residual film removal rate.

[0008] In order to solve the above technical problems, the technical solution provided by the utility model is: a residual film recovery device, including a frame, a power mechanism, a film cutting mechanism, a film scraping mechanism, a film binding mechanism, a film unwinding mechanism, and a film collecting box;

[0009] The power mechanism is arranged on the top of the frame and is connected to the film-binding mechanism and the film-retracting mechanism through a belt.

[0010] The film cutting mechanism is arranged at the lower front part of the frame and is rotatably connected to the frame;

[0011] The film collecting box is arranged at the rear side of the frame, and the film scraping mechanism is fixed at the front side of the film collecting box and extends to the front side below the film binding mechanism;

[0012] The film-binding mechanism is rotatably connected to the frame via a camshaft, and the telescopic teeth on the camshaft rotate with the camshaft to bind the residual film;

[0013] The film stripping mechanism is arranged on the frame and is located obliquely above and behind the film binding mechanism. The edge of the film stripping mechanism rotates and cooperates with the telescopic teeth to scrape off the residual film and send it to the film collecting box.

[0014] Furthermore, the power mechanism includes a gear box, a transmission shaft, a first transmission belt and a second transmission belt; the gear box is fixed on the frame, the power input end of the gear box is connected to an external power device, the transmission shaft is provided with two power output ends respectively connected to the gear box, a pulley is provided at the end of the transmission shaft, the first transmission belt connects the pulley and the film rolling mechanism, and the second transmission belt connects the pulley and the film stripping mechanism.

[0015] Furthermore, the film cutting mechanism includes a rotating shaft and a loosening wheel, the rotating shaft is rotatably connected to the frame, and the loosening wheels are arranged on the rotating shaft and are provided with a plurality of loosening wheels, and film cutting blades are provided on the loosening wheels on both sides.

[0016] Furthermore, the film scraping mechanism comprises a mounting plate and scraping teeth, the mounting plate is detachably connected to the film collecting box, and the scraping teeth extend obliquely forward from the lower end of the mounting plate to form an arc-shaped film scraping shovel.

[0017] Furthermore, the film-rolling mechanism includes a camshaft, a support frame, a roller and telescopic teeth. The camshaft is rotatably connected to the frame, bearing plates are provided on both sides of the camshaft, the support frame connects the bearing plates and the roller, and the telescopic teeth extend outward from the camshaft through the roller wall and the end thereof extends straight to the outside of the roller.

[0018] Furthermore, the film stripping mechanism includes a film stripping main shaft and a wedge-shaped scraper. The film stripping main shaft is rotatably connected to the frame. Several wedge-shaped scrapers are arranged circumferentially along the film stripping main shaft. Several scraping grooves are arranged on the wedge-shaped scraper. The size of the scraping grooves is adapted to the width of the telescopic teeth.

[0019] Furthermore, the frame includes a main frame, a connecting frame, a height adjustment frame and a movable wheel, the connecting frame is fixed at the top of the front side of the main frame, the height adjustment frame is arranged at the bottom of the main frame, the rotating shaft of the film cutting mechanism is rotatably connected to the lower part of the height adjustment frame located at the front side, and the movable wheel is rotatably connected to the height adjustment frame located at the rear.

[0020] The advantages of the utility model compared with the prior art are:

[0021] 1. The power source of the utility model comes from the tractor, and there is no need to install a separate motor drive for the residual film recovery device, which not only reduces the cost but also avoids the problem of difficulty in powering the motor.

[0022] 2. The utility model integrates film cutting, film shoveling, film picking, film scraping and film collecting in one, and the whole process is achieved by connecting the input shaft of the tractor and the residual film recovery device with a coupling to realize the rotation operation.

[0023] 3. The whole device has a simple and compact structure, is easy to operate, has strong interchangeability, is relatively easy to assemble, and has a high film removal rate. The overall quality not only meets the driving requirements, but is also not too light to cause rollover when turning in the field.

[0024] 4. The height of the whole machine can be adjusted by bolts at the front and rear wheels of the utility model, which can adapt to different ground environments. When not working, the overall height can be raised to facilitate walking. When working on the ground, the height can be lowered, and the center of gravity of the whole device is also lowered accordingly. The stability is better during work, and rollover will not occur. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the structure of a residual film recovery device of the utility model. Figure 1 .

[0026] Figure 2 This is a schematic diagram of the structure of a residual film recovery device of the utility model. Figure 1 .

[0027] Figure 3 This is a schematic diagram of the structure of a residual film recovery device of the utility model. Figure 1 .

[0028] Figure 4 It is a front view of a residual film recovery device of the utility model.

[0029] Figure 5 yes Figure 2 A magnified view of the structure in the middle.

[0030] Figure 6 yes Figure 2 Enlarged view of the structure at point B in the middle.

[0031] Figure 7 It is a schematic diagram of the concentric wheel mechanism.

[0032] As shown in the figure: 1. frame, 11. main frame, 12. connecting frame, 13. height adjustment frame, 131. support rod, 132. sliding sleeve, 1311. fixing hole, 14. moving wheel, 2. power mechanism, 21. gear box, 22. transmission shaft, 23. first transmission belt, 24. second transmission belt, 25. pulley, 3. film cutting mechanism, 31. rotating shaft, 32. loosening wheel, 321. film cutting blade, 4. film scraping mechanism, 41. mounting plate, 42. scraping teeth, 5. film binding mechanism, 51. camshaft, 52. support frame, 53. roller, 54. telescopic teeth, 541. fixing plate, 542. spring, 55. bearing plate, 6. film stripping mechanism, 61. film stripping spindle, 62. wedge scraper, 621. scraping groove, 7. film collecting box. DETAILED DESCRIPTION

[0033] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inside", "outside", "vertical", "circumferential", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0034] In the description of the present utility model, "first feature" and "second feature" may include one or more of the features. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0035] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] The following is a further detailed description of a residual film recovery device of the utility model in conjunction with the accompanying drawings.

[0037] Combined with Figure 1-7 , the utility model is introduced in detail.

[0038] A residual film recovery device comprises a frame 1, a power mechanism 2, a film cutting mechanism 3, a film scraping mechanism 4, a film rolling mechanism 5, a film stripping mechanism 6, and a film collecting box 7; the power mechanism 2 is arranged on the top of the frame 1 and is connected to the film rolling mechanism 5 and the film stripping mechanism 6 through a belt; the film cutting mechanism 3 is arranged on the lower front side of the frame 1 and is rotatably connected to the frame 1; the film collecting box 7 is arranged on the rear side of the frame 1, the film scraping mechanism 4 is fixed on the front side of the film collecting box 7 and extends to the front to the bottom of the film rolling mechanism 5; the film rolling mechanism 5 is rotatably connected to the frame 1 through a camshaft 51, and the telescopic teeth 54 on the camshaft 51 rotate with the camshaft to pick up the residual film; the film stripping mechanism 6 is arranged on the frame 1 and is located obliquely above the rear side of the film rolling mechanism 5, and the edge of the film stripping mechanism 6 rotates to cooperate with the telescopic teeth 54 to scrape off the residual film and send it to the film collecting box 7.

[0039] The design of the power mechanism 2 adopts tractor traction, and the selection of the frame 1 is as follows:

[0040] The suspended frame 1 is used: it is mechanically connected through a three-point suspension and is lifted and lowered by the hydraulic lifting mechanism of the tractor. It has the characteristics of light weight, compact structure, good maneuverability and high efficiency. The weight of the machine is limited by the hydraulic lifting capacity, maneuverability and stability of the tractor. Since the design is a small drum 53 agricultural film recovery device, its working width is only one meter and the overall weight is also light, so these problems do not exist.

[0041] The design of this drum 53 type agricultural film residue recovery device focuses on practicality, flexibility, convenience, ease of operation, and economy. The device itself is designed with two wheels that can bear its own weight and maintain good stability, so the frame 1 adopts a suspended structure frame 1.

[0042] The frame 1 includes a main frame 11, a connecting frame 12, a height adjustment frame 13 and a moving wheel 14. The connecting frame 12 is fixed to the top of the front side of the main frame 11, and the height adjustment frame 13 is arranged at the bottom of the main frame 11. The rotating shaft 31 of the film cutting mechanism 3 is rotatably connected to the lower part of the height adjustment frame 13 located at the front side, and the moving wheel 14 is rotatably connected to the height adjustment frame 13 located at the rear.

[0043] Preferably, the height adjustment frame 13 includes a support rod 131 and a sliding sleeve 132, the top of the support rod 131 is connected to the main frame body 11, the support rod 131 is provided with fixing holes 1311 arranged from top to bottom, the sliding sleeve 132 is sleeved on the support rod 131 and the two are connected and fixed by bolts passing through the fixing holes 1311.

[0044] The power mechanism 2 on the frame 1 includes a gear box 21, a transmission shaft 22, a first transmission belt 23 and a second transmission belt 24; the gear box 21 is fixed on the frame 1, the power input end of the gear box 21 is connected to an external power device, the transmission shaft 22 is provided with two power output ends respectively connected to the gear box 21, a pulley 25 is provided at the end of the transmission shaft 22, the first transmission belt 23 connects the pulley 25 and the film rolling mechanism 5, and the second transmission belt 24 connects the pulley 25 and the film stripping mechanism 6.

[0045] As for the film cutting mechanism 3, it includes a rotating shaft 31 and a loosening wheel 32. The rotating shaft 31 is rotatably connected to the frame 1. The loosening wheel 32 is arranged on the rotating shaft 31 and is provided with a plurality of, specifically, three groups of loosening wheels 32 with equal spacing, each two loosening wheels 32 form a group, and the two outermost loosening wheels 32 are designed with a film cutting blade 321 similar to the tip of a sheep's hoof knife. This film cutting blade 321 must be designed to ensure that it can cut the ground film under the premise of being short enough and will not affect the operation of the whole machine; the reason is: on the one hand, the blade is short enough and not easy to break; on the other hand, it is short enough and will not affect the smooth operation of the residual film recovery machine.

[0046] As for the film scraping mechanism 4, it includes a mounting plate 41 and scraping teeth 42. The mounting plate 41 is detachably connected to the film collecting box 7. The scraping teeth 42 extend obliquely forward from the lower end of the mounting plate 41 to form an arc-shaped film scraper.

[0047] Regarding the design of the film-wrapping mechanism 5: the film-wrapping mechanism 5 includes a camshaft 51, a support frame 52, a roller 53 and a telescopic tooth 54. The camshaft 51 is rotatably connected to the frame 1. Bearing plates 55 are provided on both sides of the camshaft 51. The support frame 52 connects the bearing plates 55 and the roller 53. The telescopic tooth 54 extends outward from the camshaft 51 through the wall of the roller 53 and its end extends straight to the outside of the roller 53.

[0048] Preferably, the roller 53 is provided with two layers, the portion of the telescopic tooth 54 between the two layers of rollers 53 is provided with a fixing plate 541 , a spring 542 is provided between the fixing plate 541 and the roller 53 in the outer layer, and the spring 542 is sleeved on the outside of the telescopic tooth 54 .

[0049] The gear rod film-binding mechanism 5 has good working effect, can remove the residual film with high rate, and has high mechanical efficiency. The working principle of the gear rod film-binding mechanism 5 is that the tractor pulls the drum 53 to rotate, and the retractable teeth 54 inside the drum 53 move the cam plate mechanism, extending and retracting to perform film binding and film stripping; in order to prevent the residual film from falling off, the film stripping process should be completed above the drum 53.

[0050] Combined with Figure 7The working process of the concentric wheel is as follows: when the telescopic tooth rod 54 moves at position b, the tooth rod extends the longest distance, and then moves a full circle to position c. During this distance, the tooth rod is just in the film-binding state, and there is no problem of residual film falling off. After position c, the tooth rod retracts to the roller 53 to recover the residual film.

[0051] Regarding the design of the film stripping mechanism 6, the film stripping mechanism 6 includes a film stripping main shaft 61 and a wedge-shaped scraper 62. The film stripping main shaft 61 is rotatably connected to the frame 1. Several wedge-shaped scrapers 62 are arranged circumferentially along the film stripping main shaft 61. Several scraping grooves 621 are arranged on the wedge-shaped scraper 62. The size of the scraping grooves 621 is adapted to the width of the telescopic teeth 54.

[0052] The scraper-type film stripping mechanism 6 can fit well with the roller 53 at the film stripping position above the roller 53, with a large fit, a small gap between the two, and a more thorough film stripping. During the design, it is towed by a tractor, connected with a coupling, and driven by the meshing and transmission of the bevel gear in the gear box 21, and the pulley 25 is driven by the second transmission belt 24 to drive the wedge-shaped scraper 62 to rotate at high speed to scrape the film, so as to achieve the purpose of film stripping. The film stripped then enters the film collecting box 7 along the bottom of the wedge-shaped scraper 62 to prevent dry friction. Designing the film stripping plate into a wedge shape can increase the fit between the roller 53 and the film stripping plate to a greater extent, and extend the service life of the film stripping plate. The material of the wedge-shaped scraper 62 is rubber, which has high elasticity, high tensile strength, good tear resistance and wear resistance, and good processability.

[0053] The specific implementation process of the residual film recovery device of the utility model is as follows:

[0054] The tractor input shaft and the residual film recovery device are connected by a coupling, and the bevel gear in the gear box 21 is connected to the pulley 25, and then the first transmission belt 23 drives the roller 53 to roll in the counterclockwise direction. First, the film cutting blade 321 of the film cutting mechanism 3 cuts the agricultural mulch film, and the shoveling teeth 42 on the shoveling mechanism 4 shovel the mulch film. The telescopic teeth 54 pass through the camshaft 51, so that when the telescopic teeth 54 rotate to the bottom of the roller 53, they extend the longest to pick up the residual film; when the telescopic teeth 54 are above the roller 53, they extend the shortest and wrap the picked up residual film around the roller 53; the wedge-shaped scraper 62 is driven by the second transmission belt 24 to rotate at a high speed, and the concentrated residual film is peeled off into the film collecting box 7, and the whole process is repeated until all work tasks are completed.

[0055] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A residual film recovery device, characterized in that: It comprises a frame (1), a power mechanism (2), a film cutting mechanism (3), a film scraping mechanism (4), a film binding mechanism (5), a film unwinding mechanism (6), and a film collecting box (7); The power mechanism (2) is arranged on the top of the frame (1) and is connected to the film-binding mechanism (5) and the film-removing mechanism (6) through a belt. The film cutting mechanism (3) is arranged at the lower front part of the frame (1) and is rotatably connected to the frame (1); The film collecting box (7) is arranged at the rear side of the frame (1), and the film scraping mechanism (4) is fixed at the front side of the film collecting box (7) and extends to the front side below the film binding mechanism (5); The film-binding mechanism (5) is rotatably connected to the frame (1) via a cam shaft (51), and the telescopic teeth (54) on the cam shaft (51) rotate with the cam shaft to bind the residual film; The film stripping mechanism (6) is arranged on the frame (1) and is located obliquely above and behind the film binding mechanism (5). The edge of the film stripping mechanism (6) rotates to cooperate with the telescopic teeth (54) to scrape off the residual film and send it to the film collecting box (7).

2. A residual film recovery device according to claim 1, characterized in that: The power mechanism (2) comprises a gear box (21), a transmission shaft (22), a first transmission belt (23) and a second transmission belt (24); the gear box (21) is fixed on the frame (1); the power input end of the gear box (21) is connected to an external power device; the transmission shaft (22) is provided with two power output ends respectively connected to the gear box (21); a pulley (25) is provided at the end of the transmission shaft (22); the first transmission belt (23) connects the pulley (25) and the film-binding mechanism (5); and the second transmission belt (24) connects the pulley (25) and the film-removing mechanism (6).

3. A residual film recovery device according to claim 2, characterized in that: The film cutting mechanism (3) comprises a rotating shaft (31) and a loosening wheel (32); the rotating shaft (31) is rotatably connected to the frame (1); a plurality of loosening wheels (32) are arranged on the rotating shaft (31); and film cutting blades (321) are arranged on the loosening wheels (32) on both sides.

4. A residual film recovery device according to claim 3, characterized in that: The film scraping mechanism (4) comprises a mounting plate (41) and scraping teeth (42); the mounting plate (41) is detachably connected to the film collecting box (7); the scraping teeth (42) extend obliquely forward from the lower end of the mounting plate (41) to form an arc-shaped film scraping shovel.

5. A residual film recovery device according to claim 4, characterized in that: The film-wrapping mechanism (5) comprises a camshaft (51), a support frame (52), a roller (53) and a telescopic tooth (54); the camshaft (51) is rotatably connected to the frame (1); bearing plates (55) are provided on both sides of the camshaft (51); the support frame (52) connects the bearing plates (55) and the roller (53); the telescopic tooth (54) extends outward from the camshaft (51) through the wall of the roller (53) and the end thereof extends straight to the outside of the roller (53).

6. A residual film recovery device according to claim 5, characterized in that: The roller (53) is provided with two layers, and a fixing plate (541) is provided at the part of the telescopic teeth (54) between the two layers of rollers (53). A spring (542) is provided between the fixing plate (541) and the roller (53) at the outer layer, and the spring (542) is sleeved on the outside of the telescopic teeth (54).

7. A residual film recovery device according to claim 6, characterized in that: The film stripping mechanism (6) comprises a film stripping main shaft (61) and a wedge-shaped scraper (62). The film stripping main shaft (61) is rotatably connected to the frame (1). A plurality of wedge-shaped scrapers (62) are arranged circumferentially along the film stripping main shaft (61). A plurality of scraping grooves (621) are arranged on the wedge-shaped scraper (62). The size of the scraping grooves (621) is adapted to the width of the telescopic teeth (54).

8. A residual film recovery device according to claim 7, characterized in that: The frame (1) comprises a main frame (11), a connecting frame (12), a height adjustment frame (13) and a moving wheel (14); the connecting frame (12) is fixed to the top of the front side of the main frame (11); the height adjustment frame (13) is arranged at the bottom of the main frame (11); the rotating shaft (31) of the film cutting mechanism (3) is rotatably connected to the lower part of the height adjustment frame (13) located at the front side; and the moving wheel (14) is rotatably connected to the height adjustment frame (13) located at the rear side.

9. A residual film recovery device according to claim 8, characterized in that: The height adjustment frame (13) comprises a support rod (131) and a sliding sleeve (132); the top of the support rod (131) is connected to the main frame body (11); the support rod (131) is provided with fixing holes (1311) arranged from top to bottom; the sliding sleeve (132) is sleeved on the support rod (131) and the two are connected and fixed by bolts passing through the fixing holes (1311).

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