A kind of stretch-type residual film picking and recycling device

Abstract

The present invention discloses a stretching type residual film picking and recycling device, which belongs to the field of agricultural mulch film picking equipment, and includes a frame, on which a contoured disc cutter device, a film lifting shovel device, a stretching type picking mechanism, a film stripping device, a film collecting device and a depth limiting wheel device are provided, the stretching type picking mechanism includes a roller, a rocker arm and a picking tooth, the picking tooth includes a fixed tooth and a rotating tooth, the fixed tooth is fixed to the surface of the roller, and the other end is a free end, the middle part of the fixed tooth and the rotating tooth is hinged, and a tension spring is provided between the fixed tooth and the rotating tooth close to the roller, and the tension spring keeps the free ends of the fixed tooth and the rotating tooth in an open state. The residual film recycling machine can realize the effective recycling of mulch film, and the various working parts are connected in an orderly manner, and can realize the effective and reliable operation of processes such as cutting stubble, picking up mulch film, collecting mulch film and removing mulch film. No additional power input is required, and high-speed picking of residual film can be realized, with high operating efficiency and high mulch film picking rate.

Description

Technical Field

[0001] The invention belongs to the field of agricultural machinery, and in particular relates to a stretch-type residual film picking and recycling device used for recycling residual film in farmland. Background Art

[0002] The mulching cultivation technology has the functions of increasing ground temperature, preventing seedlings from freezing, resisting drought and conserving moisture, inhibiting weed growth and extending the growth period of some crops, which can greatly improve the quality and yield of crops. It is of great significance for utilizing limited water resources and developing dryland agriculture. my country began to introduce mulching cultivation technology in 1978, and the mulching cultivation experiment began in 1979. However, for a long time, my country has used ultra-thin mulch (thickness 0.005mm~0.008mm) with polyethylene as the main component, which is not easy to recycle and extremely difficult to degrade under natural conditions (degradation cycle 200~400 years). Year by year, it has accumulated to form "white pollution", causing a series of problems such as soil structure damage, decline in arable land quality, crop yield reduction, obstruction of agricultural operations, and secondary environmental pollution.

[0003] Mechanical recycling is an effective method for controlling residual film pollution in agricultural production. Existing residual film picking mechanisms mainly include drum type, spring tooth type, shovel type, chain rake type and other structural forms. A large number of studies have shown that using rod teeth (rigid or elastic) to enter the soil to "pick up" the film is a feasible residual film picking solution suitable for film recycling. However, the picking rod teeth rotate quickly and will break the residual film. The basic working unit is a rod tooth that hangs on the residual film for picking up, which is easy to fall off during the film lifting and lifting process, which has a certain impact on the residual film recovery rate and is difficult to improve the work efficiency.

[0004] Therefore, the present invention proposes a holding picking method in which the picking teeth can be opened or closed, that is, using two picking teeth to hold the ground film together is more effective than "picking up" the ground film with a single picking tooth, which helps to improve the unit's operating efficiency and residual film recovery rate. Summary of the invention

[0005] In order to overcome a series of defects in the prior art, the technical problem to be solved by the present invention is to provide a stretchable residual film picking and recycling device that can pick up residual film, does not require other additional power, has efficient operation, quickly unloads film, and has a high picking rate.

[0006] In order to solve the above problems, the present invention provides a stretching type residual film picking and recycling device, comprising a frame 1, characterized in that: the frame 1 is provided with at least a stretching type picking mechanism 5, a film stripping device 9 and an auxiliary closing track 53,

[0007] The stretching and holding picking mechanism 5 comprises a roller 52, a rocker arm 51 and a picking tooth 54. The picking tooth 54 comprises a fixed tooth 541 and a rotating tooth 544. The fixed tooth 541 is fixed to the surface of the roller 52 and the other end is a free end. The middle parts of the fixed tooth 541 and the rotating tooth 544 are hinged. A tension spring 542 is arranged between the fixed tooth 541 and the end of the rotating tooth 544 close to the roller 52. The tension spring 542 keeps the free ends of the fixed tooth 541 and the rotating tooth 544 in an open state.

[0008] The rocker arm 51 is a strip-shaped plate body, including a rocker arm 511 and a connecting sleeve 512 arranged on the rocker arm 511. The rocker arm 511 is hinged to the surface of the drum 52 through the connecting sleeve 512, and the rocker arm 511 can rotate around the connecting sleeve 512. A bearing 513 is arranged on the rocker arm 511.

[0009] The film stripping device 9 comprises a stripping cover 94 in a tubular grid shape, and a stripping surface is provided with long strip holes. The stripping cover 94 is arranged outside the roller 52, and the stripping cover 94 and the roller 52 are eccentric. The picking teeth 54 can extend from the long strip holes or retract into the stripping cover 94.

[0010] The auxiliary closed track 53 at least includes a track 531, which is arranged in the lower half of the holding type picking mechanism 5. The track formed by the above-mentioned bearing 513 when rotating without contacting the track 531 is circular. When contacting the track 531, it can drive the free end of the rotating tooth 544 to swing toward the free end of the fixed tooth 541, so that the fixed tooth 541 and the rotating tooth 544 form a wedge shape.

[0011] The curvature radius of the trajectory circle of the bearing 513 is smaller than the curvature radius of the track 531 .

[0012] The rotating tooth 544 is provided with an adjusting bolt 543 , and the adjusting bolt 543 is pressed against the rocker arm 511 . The opening angle between the rotating tooth 544 and the fixed tooth 541 can be adjusted by adjusting the adjusting bolt 543 .

[0013] The film stripping device 9 comprises an impeller support plate 91, an impeller 92, a fixing rod 93, a grid-shaped film stripping cover 94, a short shaft 95, a hollow circular tube 96, a supporting circular tube 97, a film stripping cover support frame 98 and an adjusting screw 38.

[0014] The film stripping cover support frame 98 is arranged on both sides of the middle part of the frame 1, and the upper end is connected to the short shaft 95; the hollow circular tube 96 is sleeved between the two short shafts 95 and can rotate around the short shaft 95, and the hollow circular tube 96 is connected to the outside of the grid-bar-shaped film stripping cover 94; the grid-bar-shaped film stripping cover 94 is arranged on the outside of the roller 52, and the grid bars thereon allow the picking teeth 54 to pass through; the supporting circular tube 97 is installed on the inside of the grid-bar-shaped film stripping cover 94; the fixing rod 93 is installed on the outside of the grid-bar-shaped film stripping cover 94; the adjusting screw 38, one end of which is rotatably arranged on the film stripping cover support frame 98, and the other end is connected to the fixing rod 93; the impeller support plate 91 is installed on both sides of the frame 1, and is located behind the film stripping cover support frame 98; the impeller 92 is arranged between the two impeller support plates 91.

[0015] The auxiliary closed track 53 includes a track 531, a limit screw 532, and a track connecting frame 533; the track connecting frame 533 is installed below the frame 1, and has a square tube at its lower end. The track 531 is sleeved in the track connecting frame 533 and is connected in the middle by a limit screw 532.

[0016] The frame is also provided with a profiling disc cutter device, which includes a disc cutter mounting frame 31, a supporting square tube 32, a disc cutter supporting frame 33, a connecting plate 34, a flange 35, a disc cutter 36, a compression spring 37, and an adjusting screw 38. The disc cutter mounting frame 31 is installed below both sides of the front beam 1-1 of the frame 1; the supporting square tube 32 is located between the disc cutter mounting frames 32 on both sides; the disc cutter supporting frame 33 has a square tube in the middle, which can be sleeved on the supporting square tube 32; the connecting plate 34 is rotatably connected to one end of the disc cutter supporting frame 33, and the other end is connected to the disc cutter 36; the flange 35 is fixedly connected to both sides of the disc cutter 36; the adjusting screw 38 is rotatably set on the connecting plate 34, and one end is in contact with the disc cutter supporting frame 33; the compression spring 37 is sleeved on the adjusting screw 38.

[0017] The frame is also provided with a depth limiting wheel device, which includes an adjusting screw rod 71, an outer sleeve 72, a connecting frame 73, a tail wheel frame 74, a rubber tire 75 and a mounting plate 41; the outer sleeve 72 is installed on the outer side of the rear beam 1-3 of the frame 1 and is connected to the mounting plate 41 on the inner side of the rear beam 1-3; the connecting frame 73 is sleeved in the outer sleeve 72 and is connected by the adjusting screw rod 71; one end of the tail wheel frame 74 is rotatably arranged at the lower end of the connecting frame 73, and the other end is connected to the rubber tire 75.

[0018] The frame is also provided with a film-lifting shovel device, which includes a mounting plate 41, a film-lifting shovel support frame 42, an adjustment bracket 43 and an earth-entering shovel 44. The mounting plate 41 is located above the middle beam 1-2 of the frame 1; the film-lifting shovel support frame 42 is located below the middle beam 1-2 of the frame 1 and is connected to the mounting plate 41; the adjustment bracket 43 is arranged below the film-lifting shovel support frame 42, and the lower end of the adjustment bracket 43 is connected to the earth-entering shovel 44.

[0019] The frame is also provided with a transmission device, and the transmission device 8 includes a driven sprocket 81 , a linkage chain 82 , and a driving sprocket 83 .

[0020] The driven sprocket 81 is fixed on the shaft where the impeller 92 is located; the driving sprocket 83 is fixed on the shaft where the drum 52 is located; the driving sprocket 83 and the driven sprocket 82 are connected by a linkage chain 82 .

[0021] The frame is also provided with a film collecting device, which includes a film collecting box 61, a sliding arc plate 62 and a handle 63; the film collecting box 61 is arranged at the lower rear of the frame 1 and has a hole at the bottom; the sliding arc plate 62 is located at the bottom hole of the film collecting box 61 and can slide against the film collecting box 61; the handle 63 is fixed to one end of the sliding arc plate 62 and is arranged on both sides of the film collecting box 61.

[0022] A stretch-type residual film picking and recycling device comprises a frame 1, characterized in that: the frame 1 is provided with a suspension device 2, a contoured disc cutter device 3, a film lifting shovel device 4, a stretch-type picking mechanism 5, a film collecting device 6, a depth limiting wheel device 7, a transmission device 8, and a film stripping device 9, and the frame 1 comprises a front beam 1-1, a middle beam 1-2 and a rear beam 1-3.

[0023] The profiling disc cutter device 3 comprises a disc cutter mounting frame 31, a supporting square tube 32, a disc cutter supporting frame 33, a connecting plate 34, a flange 35, a disc cutter 36, a compression spring 37, and an adjusting screw 38; the disc cutter mounting frame 31 is mounted below the two sides of the front beam 1-1 of the frame 1 by bolts; the supporting square tube 32 is located between the disc cutter mounting frames 32 on both sides and is connected by screws; the disc cutter supporting frame 33 has a square tube in the middle and can be sleeved on the supporting square tube 32; the connecting plate 34 is rotatably connected to one end of the disc cutter supporting frame 33, and the other end is connected to the disc cutter 36, both of which are connected by a pin shaft; the flange 35 is fixedly connected to both sides of the disc cutter 36; the adjusting screw 38 is rotatably set on the connecting plate 34, and one end is in contact with the disc cutter supporting frame 33; the compression spring 37 is sleeved on the adjusting screw 38.

[0024] The film-lifting shovel device 4 includes a mounting plate 41, a film-lifting shovel support frame 42, an adjustment bracket 43 and a soil-entering shovel 44;

[0025] The mounting plate 41 is located above the middle beam 1-2 of the frame 1; the film-lifting shovel support frame 42 is located below the middle beam 1-2 of the frame 1 and is connected to the mounting plate 41 by bolts; the adjustment bracket 43 is arranged below the film-lifting shovel support frame 42, and a soil shovel 44 is connected to its lower end.

[0026] The holding type picking mechanism 5 includes a rocker arm 51, a roller 52, an auxiliary closed track 53, and a picking tooth 54;

[0027] The rocker arm 51 includes a rocker arm rod 511, a connecting sleeve 512 and a rolling bearing 513; the roller 52 is provided with a connecting sleeve 512 connected to the rocker arm 51;

[0028] The auxiliary closed track 53 includes a track 531, a limiting screw 532, and a track connecting frame 533;

[0029] The picking teeth 54 include a fixed tooth 541 , a tension spring 542 , an adjusting bolt 543 and a rotating tooth 544 .

[0030] The connecting sleeve 512 is located at one side of the rocker arm 511 and is rotatably connected to the connecting sleeve 512 on the roller 52 ; the rolling bearing 513 is arranged at one end of the rocker arm 511 , and its outer ring can roll on the track 531 .

[0031] The track connecting frame 533 is installed below the frame 1, and has a square tube at its lower end. The track 531 is sleeved in the track connecting frame 533 and is connected in the middle by a limiting screw 532.

[0032] The fixed tooth 541 is fixedly connected to the drum, and has a positioning boss and a small hole at the root; the rotating tooth 544 is rotatably connected to the fixed tooth 541, and one end is connected to the adjusting bolt 543; the adjusting bolt 543 fits the rocker arm 511, and can slide on the rocker arm 511 when the rocker arm 511 rotates, and the holding angle can be changed by adjusting the adjusting bolt 543; the tension spring 542 is arranged between the adjusting bolt 543 and the small hole at the root of the fixed tooth 541.

[0033] Preferably, the rocker arm 511 is L-shaped; the trajectory formed by the rolling bearing 513 when rotating without contacting the track 531 is circular, and its curvature radius is smaller than the curvature radius of the track 531.

[0034] Preferably, the film collecting device 6 includes a film collecting box 61 , a sliding arc plate 62 and a handle 63 .

[0035] The film collecting box 61 is arranged at the rear lower part of the frame 1 and has a hole at the bottom; the sliding arc plate 62 is located at the bottom hole of the film collecting box 61 and can slide against the film collecting box 61; the handle 63 is fixed to one end of the sliding arc plate 62 and is arranged on both sides of the film collecting box 61.

[0036] Preferably, the depth limiting wheel device 7 includes an adjusting screw rod 71 , an outer sleeve 72 , a connecting frame 73 , a tail wheel frame 74 , a rubber tire 75 and a mounting plate 41 .

[0037] The outer sleeve 72 is installed on the outside of the rear beam 1-3 of the frame 1 and is connected to the mounting plate 41 on the inside of the rear beam 1-3; the connecting frame 73 is sleeved in the outer sleeve 72 and is connected by the adjusting screw rod 71; one end of the tail wheel frame 74 is rotatably set at the lower end of the connecting frame 73, and the other end is connected to the rubber tire 75.

[0038] Preferably, the film stripping device 9 includes an impeller support plate 91 , an impeller 92 , a fixing rod 93 , a grid-shaped film stripping cover 94 , a short shaft 95 , a hollow circular tube 96 , a supporting circular tube 97 , a film stripping cover support frame 98 and an adjusting screw 38 .

[0039] The stripping cover support frame 98 is arranged on both sides of the middle part of the frame 1, and the upper end is connected to the short shaft 95. The hollow circular tube 96 is sleeved between the two short shafts 95 and can rotate around the short shaft 95. The hollow circular tube 96 is connected to the outside of the grid-shaped stripping cover 94. The grid-shaped stripping cover 94 is arranged on the outside of the roller 52, and the grid bars on it allow the picking teeth 54 to pass through. The supporting circular tube 97 is installed on the inside of the grid-shaped stripping cover 94, and the fixing rod 93 is installed on the outside of the grid-shaped stripping cover 94. One end of the adjusting screw 38 is rotatably arranged on the stripping cover support frame 98, and the other end is connected to the fixing rod 93. The impeller support plate 91 is installed on both sides of the frame 1, and is located behind the stripping cover support frame 98; the impeller 92 is arranged between the two impeller support plates 91.

[0040] Preferably, the grid-shaped film stripping cover 94 is eccentrically disposed with respect to the roller 52 .

[0041] Preferably, the transmission device 8 includes a driven sprocket 81 , a linkage chain 82 , and a driving sprocket 83 .

[0042] The driven sprocket 81 is fixed on the shaft where the impeller 92 is located; the driving sprocket 83 is fixed on the shaft where the drum 52 is located; the driving sprocket 83 and the driven sprocket 82 are connected by a linkage chain 82 .

[0043] The beneficial effects of adopting the above technical solution are:

[0044] The holding type residual film picking and recycling device of the present invention can realize the effective recycling of ground film, and the working parts are connected in an orderly manner, so as to realize the effective and reliable operation of the processes such as cutting the root stubble and ground film, holding the ground film, collecting the ground film, and removing the ground film. During operation, the contoured disc cutter device cuts the root stubble and ground film according to the terrain, which is convenient for the subsequent picking of the ground film, and then the film shovel device loosens the compacted soil on the edge film, which is easy to pick up the edge film. At the same time, the holding type picking mechanism rolls on the ground. In order to realize the "holding type" picking of ground film, a rocker arm, a picking tooth, and an auxiliary closed track are designed, and the film stripping device is provided with power. The ground film on the picking tooth falls from the tooth into the film collecting device under the action of the bar-shaped film stripping cover and the impeller, and the depth limiting wheel device adjusts the working depth. At the same time, in view of the difficulty of film unloading, a sliding arc plate and a handle are designed to realize rapid film unloading. The holding type residual film picking and recycling device has the characteristics of high residual film recovery rate, fast working speed, low energy consumption, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0046] Figure 1 It is a front axonometric view of the complete machine of the present invention.

[0047] Figure 2 It is an axonometric view of the contoured disc cutter device of the present invention.

[0048] Figure 3 It is a rear axonometric view of the complete machine of the present invention.

[0049] Figure 4 It is a side view of the complete machine of the present invention.

[0050] Figure 5 It is an axonometric view of the rocker arm of the present invention.

[0051] Figure 6 It is a front view of the picking tooth of the present invention.

[0052] Figure 7 It is a working schematic diagram of the holding type picking of the present invention.

[0053] Figure 7 The middle arrow A is the walking direction, the arrow B is the rotation direction of the holding type picking mechanism, the arrow C is the closing direction of the rotating teeth, and the arrow D is the opening direction of the rotating teeth.

[0054] Reference numerals: 1 frame, 1-1 front beam, 1-2 middle beam, 1-3 rear beam,

[0055] 2 suspension device, 3 profiling disc cutter device, 31 disc cutter mounting frame, 32 supporting square tube, 33 disc cutter supporting frame, 34 connecting plate, 35 flange, 36 disc cutter, 37 compression spring,

[0056] 4 film lifting shovel device, 41 mounting plate, 42 film lifting shovel support frame, 43 adjustment bracket, 44 soil shovel,

[0057] 5. Sheet-type picking mechanism, 51. rocker arm, 511. rocker arm rod, 512. connecting sleeve, 513. rolling bearing, 52. roller, 53. auxiliary closed track, 531. track, 532. limit screw, 533. track connecting frame, 54. picking tooth, 541. fixed tooth, 542. tension spring, 543. adjusting bolt, 544. rotating tooth,

[0058] 6 film collecting device, 61 film collecting box, 62 sliding arc plate, 63 handle,

[0059] 7 depth limiting wheel device, 71 adjusting screw rod, 72 outer sleeve, 73 connecting frame, 74 tail wheel frame, 75 rubber tire, 8 transmission device, 81 driven sprocket, 82 chain, 83 driving sprocket,

[0060] 9, film stripping device, 91, impeller support plate, 92, impeller, 93, fixing rod, 94, film stripping cover, 95, short shaft, 96, hollow circular tube, 97, supporting circular tube, 98, film stripping cover support frame. DETAILED DESCRIPTION

[0061] In order to make the objectives, technical solutions and advantages of the present invention more clear, the present invention is clearly and completely described below in conjunction with the accompanying drawings and specific embodiments.

[0062] For the convenience of description, if the words "upper", "lower", "inside" and "outside" appear in the present invention, they only indicate that the upper, lower, inside and outside directions are consistent with the drawings themselves, and do not limit the structure. They are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0063] like Figure 1 The device shown is a stretching type residual film picking and recycling device, comprising a frame 1, a suspension device 2, a contoured disc cutter device 3, a film lifting shovel device 4, a stretching type picking mechanism 5, a film collecting device 6, a depth limiting wheel device 7, a transmission device 8, and a film stripping device 9.

[0064] like Figure 2 The contoured disc cutter device 3 shown includes a disc cutter mounting frame 31 , a supporting square tube 32 , a disc cutter supporting frame 33 , a connecting plate 34 , a flange 35 , a disc cutter 36 , a compression spring 37 , and an adjusting screw 38 .

[0065] The above-mentioned disc cutter mounting frame 31 is installed below the two sides of the front beam 1-1 of the frame 1 by bolts, and the above-mentioned supporting square tube 32 is located between the disc cutter mounting frames 32 on both sides and is connected by screws. The above-mentioned disc cutter supporting frame 33 has a square tube in the middle, which can be sleeved on the supporting square tube 32. The above-mentioned connecting plate 34 is rotatably connected to one end of the disc cutter supporting frame 33, and the other end is connected to the disc cutter 36, and both are connected by a pin shaft. The above-mentioned flange 35 is fixedly connected to the two sides of the disc cutter 36, and the above-mentioned adjusting screw 38 is rotatably set on the connecting plate 34, one end of which is in contact with the disc cutter supporting frame 33, and the above-mentioned compression spring 37 is sleeved on the adjusting screw 38. This design can realize the contouring of the disc cutter 36 on the ground, and the height from the ground is reduced. The disc cutter 36 rotates with the connecting plate 34, the compression spring 37 shrinks, and the adjusting screw 38 extends.

[0066] like Figure 3 The film-lifting shovel device 4 shown includes a mounting plate 41 , a film-lifting shovel support frame 42 , an adjustment bracket 43 and a soil-entering shovel 44 .

[0067] The mounting plate 41 is located above the middle beam 1-2 of the frame 1, the film shovel support frame 42 is located below the middle beam 1-2 of the frame 1, and is connected to the mounting plate 41 by bolts, and the adjustment bracket 43 is arranged below the film shovel support frame 42, and the lower end of the adjustment bracket 43 is connected to the earth shovel 44. The operating depth of the earth shovel 44 is controlled by adjusting the height of the adjustment bracket 43.

[0068] like Figure 4 The shown stretching and holding picking mechanism 5 includes a rocker arm 51 , a roller 52 , an auxiliary closing track 53 , and picking teeth 54 .

[0069] like Figure 5 , 6 As shown in , 7, the rocker arm 51 includes a rocker arm rod 511, a connecting sleeve 512 and a rolling bearing 513; the roller 52 is provided with a connecting sleeve 512 connected to the rocker arm 51; the auxiliary closing track 53 includes a track 531, a limit screw 532, and a track connecting frame 533; the picking tooth 54 includes a fixed tooth 541, a tension spring 542, an adjusting bolt 543 and a rotating tooth 544.

[0070] The connecting sleeve 512 is located at one side of the rocker arm 511 and is rotatably connected to the connecting sleeve 512 on the roller 52 . The rolling bearing 513 is arranged at one end of the rocker arm 511 , and its outer ring can roll on the track 531 .

[0071] The track connecting frame 533 is installed below the frame 1, and has a square tube at its lower end. The track 531 is sleeved in the track connecting frame 533, and is connected in the middle by a limiting screw 532.

[0072] The above-mentioned fixed tooth 541 is fixedly connected to the drum, and has a positioning boss and a small hole at the root. The above-mentioned rotating tooth 544 is rotatably connected to the fixed tooth 541, and one end is connected to the adjusting bolt 543. The adjusting bolt 543 fits the rocker arm 511 and can slide on the rocker arm 511 when the rocker arm 511 rotates. By adjusting the adjusting bolt 543, the holding angle can be changed. The above-mentioned tension spring 542 is arranged between the adjusting bolt 543 and the small hole at the root of the fixed tooth 541.

[0073] like Figure 5 , 7 The rocker arm 511 shown is L-shaped, and the track formed by the rolling bearing 513 when rotating without contacting the track 531 is circular, and its curvature radius is smaller than the curvature radius of the track 531.

[0074] like Figure 3 The film collecting device 6 shown includes a film collecting box 61 , a sliding arc plate 62 and a handle 63 .

[0075] The film collecting box 61 is arranged at the lower rear of the frame 1, and has a hole at the bottom. The sliding arc plate 62 is located at the hole at the bottom of the film collecting box 61, and can slide against the film collecting box 61. The handle 63 is fixed to one end of the sliding arc plate 62 and is arranged on both sides of the film collecting box 61. By pulling the handle 63, the residual film in the film collecting box 61 leaks out from the bottom, and the film is quickly unloaded.

[0076] like Figure 3 The depth limiting wheel device 7 shown includes an adjusting screw rod 71 , an outer sleeve 72 , a connecting frame 73 , a tail wheel frame 74 , a rubber tire 75 and a mounting plate 41 .

[0077] The outer sleeve 72 is mounted on the outside of the rear beam 1-3 of the frame 1 and connected to the mounting plate 41 on the inside of the rear beam 1-3; the connecting frame 73 is sleeved in the outer sleeve 72 and connected by the adjusting screw rod 71; one end of the tail wheel frame 74 is rotatably arranged at the lower end of the connecting frame 73, and the other end is connected to the rubber tire 75. The connecting frame 73 is extended and retracted by rotating the adjusting screw rod 71 to achieve the purpose of controlling the working depth.

[0078] like Figure 3 The demolding device 9 shown includes an impeller support plate 91 , an impeller 92 , a fixing rod 93 , a grid-shaped demolding cover 94 , a short shaft 95 , a hollow circular tube 96 , a supporting circular tube 97 , a demolding cover support frame 98 and an adjusting screw 38 .

[0079] The above-mentioned film stripping cover support frame 98 is arranged on both sides of the middle part of the frame 1, and the upper end is connected to the short shaft 95. The above-mentioned hollow circular tube 96 is sleeved between the two short shafts 95 and can rotate around the short shaft 95. The hollow circular tube 96 is connected to the outside of the grid-bar-shaped film stripping cover 94. The above-mentioned grid-bar-shaped film stripping cover 94 is arranged on the outside of the roller 52, and the grid bars thereon allow the picking teeth 54 to pass through. The above-mentioned supporting circular tube 97 is installed on the inner side of the grid-bar-shaped film stripping cover 94 to play a supporting and reinforcing role to prevent the grid-bar-shaped film stripping cover 94 from deforming. The above-mentioned fixing rod 93 is installed on the outside of the grid-bar-shaped film stripping cover 94. The above-mentioned adjusting screw 38 is rotatably arranged on the film stripping cover support frame 98 at one end, and is connected to the fixing rod 93 at the other end. By adjusting the screw 38, the axial position of the grid-bar-shaped film stripping cover 94 can be changed, so that the impeller 92 can better peel off the residual film from the picking teeth 54. The impeller support plates 91 are installed on both sides of the frame 1 and are located behind the film stripping cover support frame 98 . The impeller 92 is arranged between the two impeller support plates 91 .

[0080] like Figure 4 As shown, the above-mentioned grid-shaped film stripping cover 94 is eccentrically arranged with respect to the roller 52 .

[0081] like Figure 3 The transmission device 8 shown includes a driven sprocket 81 , a linkage chain 82 , and a driving sprocket 83 .

[0082] The driven sprocket 81 is fixed on the shaft where the impeller 92 is located; the driving sprocket 83 is fixed on the shaft where the drum 52 is located; the driving sprocket 83 and the driven sprocket 82 are connected by a linkage chain 82 .

[0083] The working process of the holding type residual film picking and recycling device of the present invention is as follows:

[0084] The holding type residual film picking and recycling device of the present invention is connected to the suspension device 2 of the tractor through the suspension device. The machine is adjusted to a suitable working depth by adjusting the bracket 43, rotating the adjusting screw 71, etc., and adjusting the adjusting screw 38 installed on the film stripping cover support frame 98 to make the grid-shaped film stripping cover 94 to a suitable position. The tractor pulls the residual film recycling machine forward, the holding type picking mechanism 5 rolls forward, and the impeller 92 is driven to rotate by the transmission device 8. When the picking teeth 54 enter the soil to pick up the ground film, the rotating teeth 544 rotate due to the resistance of the soil, and the picking teeth 54 close. At the same time, the rocker arm 51 encounters the auxiliary closing track 53 and rotates under force, and the adjusting bolt 543 is forced to slide on the rocker arm rod 511, urging the picking teeth 54 to close, and the tension spring 542 is stretched under tension. After the rotating tooth 544 rotates to the limit position where it contacts the fixed tooth 541, it stops rotating. The picking tooth 54 pierces the ground film and penetrates into the soil. As the rolling continues, the picking tooth 54 comes out of the soil. At this time, the rocker arm 51 is no longer constrained by the auxiliary closed track closed track 53. Under the action of the tension spring 542, the picking tooth 54 quickly opens and returns to the original open state, stretching the ground film, and completing the holding type picking up of the ground film. The tractor continues to move forward, and the ground film moves upward with the picking tooth 54. Under the action of the bar-shaped film stripping cover 94, the ground film moves toward the tip of the picking tooth 54. When the ground film is at the tip of the picking tooth 54, the impeller 92 peels the residual film from the picking tooth 54 and sends it to the film collecting box 61. When the film collecting box 61 is full of ground film, pull the handle 63, and the residual film leaks out from the bottom of the film collecting box 61, completing the quick film unloading. Repeat the above process after unloading the film.

[0085] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A stretch-type residual film picking and recovery device, comprising a frame (1), characterized in that: The frame (1) is provided with at least a holding type picking mechanism (5), a film stripping device (9) and an auxiliary closing track (53); The holding type picking mechanism (5) comprises a roller (52), a rocker arm (51) and a picking tooth (54); the picking tooth (54) comprises a fixed tooth (541) and a rotating tooth (544); the fixed tooth (541) is fixed to the surface of the roller (52) and the other end is a free end; the middle parts of the fixed tooth (541) and the rotating tooth (544) are hinged; a tension spring (542) is provided between one end of the fixed tooth (541) and the rotating tooth (544) close to the roller (52); the tension spring (542) keeps the free ends of the fixed tooth (541) and the rotating tooth (544) in an open state; The rocker arm (51) is a strip-shaped plate body, comprising a rocker arm rod (511) and a connecting shaft sleeve (512) arranged on the rocker arm rod (511); the rocker arm rod (511) is hinged to the surface of the drum (52) via the connecting shaft sleeve (512), and the rocker arm rod (511) can rotate around the connecting shaft sleeve (512); and a bearing (513) is arranged on the rocker arm rod (511); The film stripping device (9) comprises a tubular strip-shaped film stripping cover (94), the film stripping surface of which is provided with long strip holes, the strip-shaped film stripping cover (94) is arranged outside the roller (52), and the film stripping cover (94) and the roller (52) are eccentrically structured, and the picking teeth (54) can extend from the long strip holes or retract into the film stripping cover (94); The auxiliary closed track (53) at least comprises a track (531), the track (531) being arranged at the lower half of the holding type picking mechanism (5), the track formed by the bearing (513) when rotating without contacting the track (531) being circular, and when contacting the track (531), the free end of the rotating tooth (544) can be driven to swing toward the free end of the fixed tooth (541), so that the fixed tooth (541) and the rotating tooth (544) form a wedge shape; The film stripping device (9) comprises an impeller support plate (91), an impeller (92), a fixing rod (93), a grid-shaped film stripping cover (94), a short shaft (95), a hollow circular tube (96), a supporting circular tube (97), a film stripping cover support frame (98) and an adjusting screw (38). The stripping cover support frame (98) is arranged on both sides of the middle part of the frame (1), and the upper end is connected to the short shaft (95); the hollow circular tube (96) is sleeved between the two short shafts (95) and can rotate around the short shaft (95), and the hollow circular tube (96) is connected to the outside of the grid-shaped stripping cover (94); the supporting circular tube (97) is installed on the inside of the grid-shaped stripping cover (94); the fixing rod (93) is installed on the outside of the grid-shaped stripping cover (94); the adjusting screw (38) has one end rotatably arranged on the stripping cover support frame (98); and the other end is connected to the fixing rod (93); the impeller support plate (91) is installed on both sides of the frame (1) and is located behind the stripping cover support frame (98); the impeller (92) is arranged between the two impeller support plates (91); The auxiliary closed track (53) comprises a track (531), a limiting screw (532), and a track connecting frame (533); the track connecting frame (533) is installed below the frame (1), and has a square tube at its lower end; the track (531) is sleeved in the track connecting frame (533), and the two are connected in the middle by the limiting screw (532).

2. A stretch-type residual film picking and recycling device as claimed in claim 1, characterized in that: The radius of curvature of the circular trajectory of the bearing (513) is smaller than the radius of curvature of the track (531).

3. A stretch-type residual film picking and recycling device as claimed in claim 1, characterized in that: The rotating tooth (544) is provided with an adjusting bolt (543), and the adjusting bolt (543) is pressed against the rocker arm (511). The opening angle between the rotating tooth (544) and the fixed tooth (541) can be adjusted by adjusting the adjusting bolt (543).

4. A stretch-type residual film picking and recycling device as claimed in claim 1, 2 or 3, characterized in that: The frame is also provided with a profiling disc cutter device (3), the profiling disc cutter device (3) comprising a disc cutter mounting frame (31), a supporting square tube (32), a disc cutter supporting frame (33), a connecting plate (34), a flange (35), a disc cutter (36), a compression spring (37), and an adjusting screw (38), wherein the disc cutter mounting frame (31) is mounted below both sides of the front beam (1-1) of the frame (1); the supporting square tube (32) is located at the disc cutter mounting frames (31) on both sides. ); the disc cutter support frame (33) has a square tube in the middle, which can be sleeved on the supporting square tube (32); the connecting plate (34) is rotatably connected to one end of the disc cutter support frame (33), and the other end is connected to the disc cutter (36); the flange (35) is fixedly connected to both sides of the disc cutter (36); the adjusting screw (38) is rotatably set on the connecting plate (34), and one end is in contact with the disc cutter support frame (33); the compression spring (37) is sleeved on the adjusting screw (38).

5. A stretch-type residual film picking and recycling device as claimed in claim 1, 2 or 3, characterized in that: The frame is also provided with a depth limiting wheel device, the depth limiting wheel device (7) comprising an adjusting screw rod (71), an outer sleeve (72), a connecting frame (73), a tail wheel frame (74), a rubber tire (75) and a mounting plate (41); the outer sleeve (72) is mounted on the outer side of a rear beam (1-3) of the frame (1) and connected to the mounting plate (41) on the inner side of the rear beam (1-3); the connecting frame (73) is sleeved in the outer sleeve (72) and connected by the adjusting screw rod (71); one end of the tail wheel frame (74) is rotatably arranged at the lower end of the connecting frame (73), and the other end is connected to the rubber tire (75).

6. A stretch-type residual film picking and recycling device as claimed in claim 1, 2 or 3, characterized in that: The frame is also provided with a film-lifting shovel device (4), the film-lifting shovel device (4) comprising a mounting plate (41), a film-lifting shovel support frame (42), an adjustment bracket (43) and a soil-entering shovel (44), the mounting plate (41) being located above the middle beam (1-2) of the frame (1); the film-lifting shovel support frame (42) being located below the middle beam (1-2) of the frame (1) and being connected to the mounting plate (41); the adjustment bracket (43) being arranged below the film-lifting shovel support frame (42), and having its lower end connected to the soil-entering shovel (44).

7. A stretch-type residual film picking and recycling device as claimed in claim 1, 2 or 3, characterized in that: A transmission device is also provided on the frame, wherein the transmission device (8) comprises a driven sprocket (81), a linkage chain (82), and a driving sprocket (83); The driven sprocket (81) is fixed on the shaft where the impeller (92) is located; the driving sprocket (83) is fixed on the shaft where the roller (52) is located; the driving sprocket (83) and the driven sprocket (81) are connected via a linkage chain (82).

8. A stretch-type residual film picking and recycling device as claimed in claim 1, 2 or 3, characterized in that: The frame is also provided with a film collecting device, the film collecting device (6) comprising a film collecting box (61), a sliding arc plate (62) and a handle (63); the film collecting box (61) is arranged at the lower rear of the frame (1) and has a hole at the bottom; the sliding arc plate (62) is located at the bottom hole of the film collecting box (61) and can slide against the film collecting box (61); the handle (63) is fixed to one end of the sliding arc plate (62) and is arranged on both sides of the film collecting box (61).

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