Three-roller net laying device for baler

Abstract

The present invention relates to a three-roller net-laying device for a baler, comprising a net-laying plate, a net-laying frame, a net-laying mechanism, a net-cutting mechanism and a driving mechanism, and the technical key points are as follows: the net-laying mechanism comprises front and rear iron rollers and rubber rollers, the left and right inner ear plates are fixed to the front inner parts of the left and right side plates of the net-laying frame, the left and right outer adjustment plates are fixed to the rear outer parts, the upper ends of the left and right inner ear plates are hinged to the left and right side plates, the front iron roller is fixedly connected to the lower parts of the left and right inner ear plates, a tension spring assembly I is arranged between the middle parts of the left and right inner ear plates and the rear side plate of the net-laying frame, the lower ends of the left and right outer adjustment plates are hinged to the left and right side plates, the rear iron roller is fixedly connected to the middle parts of the left and right outer adjustment plates, a tension spring assembly II is arranged between the upper parts of the left and right outer adjustment plates and the left and right side plates, a wrench is arranged on the left side plate, a gap adjustment mechanism I is arranged between the wrench and the lower end of the left inner ear plate, and a gap adjustment mechanism II is arranged between the wrench and the upper end of the left outer adjustment plate. The present invention effectively realizes the net-laying operation, enhances the baling effect, and has high work efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery, and in particular to a three-roller net-laying device for a baler, which is mainly suitable for a round bale baler. Background Art

[0002] As my country's agricultural production continues to expand, the ability to process crop straw is also increasing. In order to avoid environmental pollution caused by burning, straw is usually packed into bundles by balers and used as feed for long-term storage.

[0003] At present, round baler is an important structural form of baler. It is mainly composed of a picker, a feeding mechanism, a baling chamber, a baling mechanism arranged in the baling chamber, and a net-laying device connected to the baling chamber. The net-laying device is used to wrap the bale net on the outside of the straw round bale, so that the straw round bale remains tight and does not fall off, creating good conditions for storing straw. At the same time, the working reliability of the net-laying device has an important influence on the working efficiency of the whole machine.

[0004] The existing net laying device adopts a two-roller net laying method, which has the following problems: 1. Because the bale net is adjusted by only two rollers, it cannot be evenly dispersed and relatively fixed after entering the net. During the operation, the bale net cannot be effectively diluted and cannot be sent into the baling room. 2. Even if the bale is completed, the shape is not beautiful, especially the flash on both sides is serious. 3. The operator needs to stop working frequently for maintenance and adjustment, which affects normal operation and causes low work efficiency. Summary of the invention

[0005] The object of the present invention is to provide a three-roller net-laying device for a baler that solves the above-mentioned problems, effectively realizes the net-laying operation, enhances the baling effect, and has high working efficiency.

[0006] The technical solution of the present invention is:

[0007] A three-roller mesh-laying device for a baler comprises a mesh-laying plate, a mesh-laying frame located at the rear of the mesh-laying plate, a mesh-laying mechanism connected to the mesh-laying frame, a mesh-cutting mechanism and a driving mechanism, wherein the mesh-laying frame comprises left and right side plates, a rear side plate and an upper cover plate, and the technical key points are as follows: the mesh-laying mechanism comprises a front iron roller, a rear iron roller, and a rubber roller located between the front iron roller and the rear iron roller in the horizontal direction, the two ends of the rubber roller are supported on the left and right side plates and the left end is connected to the driving mechanism, and the right end is fixed with a small gear for transmitting power to the mesh-cutting mechanism, the left and right inner ear plates are symmetrically fixed at the inner front of the left and right side plates, and the left and right outer adjustment plates are symmetrically fixed at the outer rear The upper ends of the left and right inner ear plates are hinged to the left and right side plates, the left and right ends of the front iron roller are fixedly connected to the lower parts of the left and right inner ear plates, a tension spring assembly I is provided between the middle parts of the left and right inner ear plates and the rear side plates, the lower ends of the left and right outer adjustment plates are hinged to the left and right side plates, the left and right ends of the rear iron roller are fixedly connected to the middle parts of the left and right outer adjustment plates, a tension spring assembly II is provided between the upper parts of the left and right outer adjustment plates and the left and right side plates, a wrench is supported on the outer side of the left plate near the cloth mesh disk by a rotating shaft, a gap adjustment mechanism I is provided between the wrench and the lower end of the left inner ear plate, and a gap adjustment mechanism II is provided between the wrench and the upper end of the left outer adjustment plate.

[0008] The above-mentioned three-roller net-laying device of the baler, the net-cutting mechanism includes a net-cutting frame located below the rubber roller in the vertical direction, the net-cutting frame extends from the left plate to the right plate in the horizontal direction, and the two end surfaces of the net-cutting frame are respectively provided with support shafts, and the left and right side plates are provided with arc-shaped slide grooves corresponding to the support shafts, and the two ends of the net-cutting frame are further provided with left and right side hanging plates hinged to the rubber roller, and a net hook plate is hinged on the right hanging plate, and a net-laying small shaft that can hang the net hook plate and drive the net hook plate to fall is provided on the inner side of the right plate, and a toothed structure is provided on the outer peripheral surface of the net-laying small shaft, and an iron gear is fixed to the outer end of the net-laying small shaft A double gear is provided on the outer side of the right side plate, the large gear of the double gear is meshed with the small gear, and the other gear of the double gear is meshed with the iron gear. A connecting rod is fixed to the outer end of the support shaft contacting the right side plate, and a long hole is provided at the other end of the connecting rod, and a linkage pin is provided in the long hole. The linkage pin is used to link with the unpacking action of the bale chamber, and push the cutting frame through the connecting rod to make the net hook plate hang on the small net shaft. A cutting blade is fixed to the rear of the cutting frame along its length direction, and a net blocking beam is provided between the left and right side plates to cooperate with the cutting blade to cut the bale net, and the net blocking beam is groove-shaped toward the cutting blade side.

[0009] The above-mentioned three-roller net-laying device of the baler has two front and rear bale net rollers in the net-laying disk. The bale net roller close to the net-laying frame is supported on the left and right fixed brackets. The left and right fixed brackets are connected and fixed to the bottom surface of the net-laying disk. The front sides of the left and right fixed brackets are hinged with door-type pushing frames. The left and right movable brackets are arranged above the door-type pushing frames. Another bale net roller is supported on the left and right movable brackets. A net-pressing frame is hinged at the position of the bale net roller close to it at the rear of the net-laying disk. The net-pressing frame is composed of two side arms and a horizontal pressure beam connected between the two side arms. The horizontal pressure beam presses on the bale net roller. The front and rear two bale net rollers are one main and one standby. The bale net roller close to the net-laying frame is used first. When the bale net on the bale net roller is used up, the door-type pushing frame is pushed to make the bale net roller supported by the left and right movable brackets fall on the left and right fixed brackets. The replaced bale net roller is wrapped with the net and placed on the left and right movable brackets for standby.

[0010] The above-mentioned three-roller net-laying device of the baler, the net hook plate is hook-shaped, the outer arc surface of the net hook plate is widened, the right side plate is provided with a limit bearing which is in contact with the outer arc surface of the net hook plate in the net cutting state to prevent the net hook plate from falling, the outer arc surface of the net hook plate rises along the limit bearing under the action of external force and is thus hung on the net-laying small shaft, the right side plate is further provided with an eccentric sleeve which limits the hanging height of the net hook plate, and the right side plate is provided with a plurality of adjustment holes corresponding to the eccentric sleeve to facilitate the adjustment of the height of the eccentric sleeve, thereby adjusting the hanging height of the net hook plate, and thereby adjusting the number of net winding circles.

[0011] In the above-mentioned three-roller net-laying device of the baler, a net-laying rod is connected between the lower front ends of the left and right side plates of the net-laying frame, and a dilution pipe is arranged between the left and right side plates. The dilution pipe is located between the net-laying rod and the front iron roller in the horizontal direction and is higher than the front iron roller in the vertical direction. The dilution pipe, the net-laying rod, the front iron roller, the rear iron roller and the rubber roller are parallel to each other. The bale net is drawn out from the net-laying plate, passes under the net-laying rod, passes upward through the dilution pipe, passes downward horizontally under the front iron roller, passes above the rubber roller and downward between the rear iron rollers into the main box.

[0012] The above-mentioned three-roller net-laying device of the baler, the gap adjustment mechanism I is composed of an inner connecting plate A located on the inner side of the left side plate, and an inner connecting plate B hinged to one end of the inner connecting plate A, the other end of the inner connecting plate A is connected and fixed to the inner end of the rotating shaft of the wrench, and the other end of the inner connecting plate B is hinged to the lower end of the left inner ear plate, and the gap adjustment mechanism II is a linkage rod, which is divided into upper and lower parts of the wrench with the rotating shaft as the boundary. When the rotating shaft coincides with the coordinate origin, the lower part of the wrench is located in the fourth quadrant of the coordinate axis, and the upper part of the wrench is located in the first quadrant of the coordinate axis, one end of the linkage rod is hinged to the upper part of the wrench, and the other end is hinged to the upper end of the left outer adjustment plate, and the inner connecting plate A is located in the third quadrant of the coordinate axis.

[0013] In the above-mentioned three-roller net-laying device for the baler, the outer side surface of the left side plate is provided with a wrench baffle plate which can hang the lower part of the wrench, the wrench baffle plate is an arc surface facing the wrench side, and a clamping groove is provided on the back side of the wrench.

[0014] The above-mentioned three-roller net-laying device for the baler, the driving mechanism includes a driving pulley that obtains power from the baler driving system, a driven pulley connected to the rubber roller, and a brake clutch assembly.

[0015] The beneficial effects of the present invention are:

[0016] 1. The present invention is placed on the baling chamber of the baler and is used for laying and cutting the net after the crop straw is baled, so that the formed crop straw is intact and does not fall apart during storage and transportation. When in use, the active pulley drives the rubber roller to rotate through the belt transmission mechanism, and the friction of the rubber roller drives the front iron roller and the rear iron roller to rotate, thereby sending the bale net into the baling chamber. By adopting a three-roller combination structure of a rubber roller, front and rear iron rollers, the two-roller net-laying structure of the existing baler is replaced to achieve rapid dilution, uniform and effective net-laying, so that the bale net effectively covers the outer peripheral surface of the straw after baling, avoiding flash on both sides, greatly improving the quality of the net-laying, and at the same time greatly reducing the failure rate caused by the net-laying, thereby improving the working efficiency of the whole machine.

[0017] 2. Add gap adjustment mechanism I and gap adjustment mechanism II. After the wrench is actuated, the front and rear iron rollers are driven simultaneously by gap adjustment mechanism I and gap adjustment mechanism II, thereby adjusting the distance between the front and rear iron rollers and the rubber roller at the same time, realizing rapid net laying adjustment operation and further improving work efficiency.

[0018] 3. The mesh laying mechanism and the mesh cutting mechanism have good linkage, which effectively realizes the continuity of mesh laying and mesh cutting actions and ensures the working efficiency of the whole machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view of the present invention;

[0020] Figure 2 yes Figure 1 Left view of

[0021] Figure 3 yes Figure 1 Right view of;

[0022] Figure 4 yes Figure 1 Middle AA section view;

[0023] Figure 5 yes Figure 1 Middle BB section;

[0024] Figure 6 is a stereogram of the present invention;

[0025] Figure 7 It is a stereogram of another viewing angle of the present invention;

[0026] Figure 8 It is a schematic structural diagram of the inner side of the grid frame of the present invention;

[0027] Fig. 9 This is a structural schematic diagram of another viewing angle of the inner side of the grid frame of the present invention;

[0028] Fig.10 It is a structural schematic diagram of another viewing angle of the inner side of the grid frame of the present invention.

[0029] In the figure: 1. cloth net plate, 2. bale net roller, 3. cloth net frame, 301. left side plate, 302. right side plate, 303. upper cover plate, 304. rear side plate, 4. dilution tube, 5. spanner baffle, 6. spanner, 7. connecting rod, 701. long hole, 8. driving pulley, 9. brake clutch assembly, 10. push frame, 11. moving bracket, 12. fixed bracket, 13. press net frame, 1301. side arm, 1302. horizontal pressure beam, 14. rotating shaft, 15. linkage rod, 16. left outer adjustment plate, 17. iron gear, 18. double Gear, 19. Small gear, 20. Arc chute, 21. Right outer adjustment plate, 22. Rear iron roller, 23. Tension spring assembly II, 24. Net blocking beam, 25. Cutting blade, 26. Net cutting frame, 27. Hanging plate, 28. Net hook plate, 29. Net laying small shaft, 30. Eccentric sleeve, 31. Limit bearing, 32. Net laying rod, 33. Right inner ear plate, 34. Front iron roller, 35. Tension spring assembly I, 36. Rubber roller, 37. Left inner ear plate, 38. Inner connecting plate A, 39. Inner connecting plate B, 40. Linkage pin, 41. Bale net. DETAILED DESCRIPTION

[0030] The present invention will be further described below in conjunction with the embodiments.

[0031] like Figure 1-Figure 10 As shown, the three-roller mesh-laying device of the baler comprises a mesh-laying plate 1, a mesh-laying frame 3 located at the rear of the mesh-laying plate 1, a mesh-laying mechanism, a mesh-cutting mechanism and a driving mechanism connected to the mesh-laying frame 3. The mesh-laying frame 3 comprises left and right side plates 301, 302, a rear side plate 304 and an upper cover plate 303, and the bottom of the mesh-laying frame 3 is in communication with the baling chamber of the baler.

[0032] The mesh-laying mechanism includes a front iron roller 34, a rear iron roller 22, and a rubber roller 36 located between the front iron roller 34 and the rear iron roller 22 in the horizontal direction. The two ends of the rubber roller 36 are supported on the left and right side plates 301 and 302, and the left end is connected to the driving mechanism, and the right end is fixed to the pinion 19 for transmitting power to the mesh-cutting mechanism. The left and right inner ear plates 37 and 33 are symmetrically fixed to the front inner side of the left and right side plates 301 and 302, and the left and right outer adjustment plates 16 and 21 are symmetrically fixed to the rear outer side. The upper ends of the left and right inner ear plates 37 and 33 are hinged to the left and right side plates 301 and 302, the left and right ends of the front iron roller 34 are fixedly connected to the lower parts of the left and right inner ear plates 37 and 33, and a tension spring assembly I35 is provided between the middle parts of the left and right inner ear plates 37 and 33 and the rear side plates. The lower ends of the left and right outer adjustment plates 16 and 21 are hinged to the left and right side plates 301 and 302, the left and right ends of the rear iron roller 22 are fixedly connected to the middle of the left and right outer adjustment plates 16 and 21, and a tension spring assembly II 23 is provided between the upper parts of the left and right outer adjustment plates 16 and 21 and the left and right side plates 301 and 302. The outer side of the left side plate 301 near the cloth mesh plate 1 is supported by a wrench 6 by a rotating shaft 14, and a gap adjustment mechanism I is provided between the wrench 6 and the lower end of the left inner ear plate 37, and a gap adjustment mechanism II is provided between the wrench 6 and the upper end of the left outer adjustment plate 16.

[0033] In this embodiment, the gap adjustment mechanism I is composed of an inner connecting plate A38 located on the inner side of the left side plate 301 and an inner connecting plate B39 hinged to one end of the inner connecting plate A38. The other end of the inner connecting plate A38 is connected and fixed to the inner end of the rotating shaft 14 of the wrench 6, and the other end of the inner connecting plate B39 is hinged to the lower end of the left inner ear plate 37. The gap adjustment mechanism II is a linkage rod 15. It is divided into upper, lower and upper parts of the wrench with the rotating shaft 14 as the boundary. When the rotating shaft 14 coincides with the coordinate origin, the lower part of the wrench 6 is located in the fourth quadrant of the coordinate axis, and the upper part of the wrench 6 is located in the first quadrant of the coordinate axis. One end of the linkage rod 15 is hinged to the upper part of the wrench 6, and the other end is hinged to the upper end of the left outer adjustment plate 16. The inner connecting plate A38 is located in the third quadrant of the coordinate axis. The outer side of the left side plate 301 is provided with a wrench baffle 5 that can be hung on the lower part of the wrench. The wrench baffle 5 is an arc surface facing the wrench 6, and a card slot is provided on the back side of the wrench 6. When the wrench 6 is hooked on the slot of the wrench baffle 5 , the wrench 6 drives the front and rear iron rollers 34 , 22 away from the rubber roller 36 through the gap adjustment mechanism I and the gap adjustment mechanism II.

[0034] The mesh cutting mechanism includes a mesh cutting frame 26 located below the rubber roller 36 in the vertical direction, and the mesh cutting frame 26 extends from the left plate to the right plate in the horizontal direction. Support shafts are respectively provided at both end surfaces of the mesh cutting frame 26, and arc-shaped slide grooves 20 corresponding to the support shafts are provided on the left and right plates 301 and 302. Left and right hanging plates 27 hinged to the rubber roller 36 are provided at both ends of the mesh cutting frame 26, and a mesh hook plate 28 is hinged on the right hanging plate 27, and a mesh laying small shaft 29 that can hang the mesh hook plate and drive the mesh hook plate to fall is provided on the inner side of the right plate 302. A tooth-like structure is provided on the outer peripheral surface of the mesh laying small shaft 29, and an iron gear 17 is fixed to the outer end of the mesh laying small shaft 29. A double gear 18 is provided on the outer side of the right plate 302, and the large gear of the double gear 18 is meshed with the small gear 19, and the other gear of the double gear 18 is meshed with the iron gear 17. The outer end of the support shaft in contact with the right side plate 302 is fixed with a connecting rod 7, and the other end of the connecting rod 7 is provided with a long hole 701 and a linkage pin 40 is provided in the long hole 701. The linkage pin 40 is used to link with the unpacking action of the bale chamber, and the connecting rod 7 pushes the net cutting frame 26 to swing, driving the net hook plate 28 to move forward and hang on the net laying small shaft 29. The cutting blade 25 is fixed to the rear of the cutting frame 26 along its length direction. A net blocking beam 24 is provided between the left and right side plates 301 and 302 to cooperate with the cutting blade 25 to cut the bale net 41. The net blocking beam 24 is groove-shaped toward the cutting blade 25. Figure 4 The cutting blade 25 is driven by the cutting frame 26 and is located in the groove of the retaining beam 24, and the bale net 41 has been cut off.

[0035] In this embodiment, the net hook plate 28 is hook-shaped, and the outer arc surface of the net hook plate 28 is widened. The right side plate 302 is provided with a limit bearing 31 which is in contact with the outer arc surface of the net hook plate 28 in the net cutting state to prevent the net hook plate from falling. The outer arc surface of the net hook plate 28 rises along the limit bearing 31 under the action of external force and is thus hung on the net-laying small shaft 29. That is, when the net hook plate 28 is driven forward, the outer arc surface of the net hook plate 28 rises along the limit bearing 31 under the limit of the limit bearing 31 (the net hook plate 28 rotates around the hinge shaft on the right side hanging plate 27), and when the end of the net hook plate 28 is higher than the net-laying small shaft 29 in the vertical direction, the net hook plate 28 falls back under the action of gravity and is successfully hung on the net-laying small shaft 29. The right side plate 302 is provided with an eccentric sleeve 30 for limiting the height of the hook plate 28. When the hook plate 28 is hung on the net-laying shaft 29, the end of the hook plate 28 falls on the outer peripheral surface of the eccentric sleeve 30. The right side plate 302 is provided with a plurality of adjustment holes corresponding to the eccentric sleeve 30, so as to adjust the height of the eccentric sleeve, thereby adjusting the height of the hook plate 28, and thus adjusting the number of net winding circles. The eccentric structure of the eccentric sleeve 30 can play a role in fine-tuning.

[0036] The cloth net plate 1 is provided with two front and rear bale net rollers 2. The bale net roller 2 close to the cloth net frame 3 is supported on the left and right fixed brackets 12, and the left and right fixed brackets 12 are connected and fixed to the bottom surface of the cloth net plate 1. The front side of the left and right fixed brackets 12 is hinged with a door-type pushing frame 10, and the left and right movable brackets 11 are arranged above the door-type pushing frame 10, and the other bale net roller 2 is supported on the left and right movable brackets 11. A pressing net frame 13 is hinged at the rear of the cloth net plate 1 corresponding to the position of the bale net roller close to it, and the pressing net frame 13 is composed of two side arms 1301 and a horizontal pressing beam 1302 connected between the two side arms, and the horizontal pressing beam 1302 is pressed on the bale net roller 2, and a handle is arranged on the upper surface of the horizontal pressing beam 1302. The front and rear two bale net rollers 2 are one main and one standby. The bale net roller 2 close to the net-laying frame 3 is used first. When the bale net on the bale net roller is used up, the door-type pushing frame 10 is pushed to make the bale net roller 2 supported by the left and right movable brackets 11 fall on the left and right fixed brackets 12. The replaced bale net roller 2 is wrapped with the net and placed on the left and right movable brackets 11 for standby.

[0037] A net laying rod 32 is connected between the lower front ends of the left and right side plates 301 and 302 of the net laying frame 3, and a dilution pipe 4 is further arranged between the left and right side plates 301 and 302, the middle of which is bent toward the upper cover plate 303, and is used to cooperate with the upper cover plate 303 to clamp the bale net 41. The dilution pipe 4 is located between the net laying rod 32 and the front iron roller 34 in the horizontal direction, and is higher than the front iron roller 34 in the vertical direction. The dilution pipe 4, the net laying rod 32, the front iron roller 34, the rear iron roller 22 and the rubber roller 36 are parallel to each other. The bale net 41 is drawn out from the net laying plate 1, passes under the net laying rod 32, and passes upward through the dilution pipe 4, then passes horizontally downward under the front iron roller 34, passes above the rubber roller 36 and downward between the rear iron roller 22 into the interior of the bale forming chamber. The driving mechanism includes a driving pulley 8 that obtains power from the baler driving system, a driven pulley connected to the rubber roller 36, and a brake clutch assembly 9.

[0038] When installing the bale net 41 for the first time, hang the wrench 6 upward on the wrench baffle 5. At this time, the upper part of the wrench 6 pushes the linkage rod 15 to move backward, and the left outer adjustment plate 16 is pushed by the linkage rod 15 and swings backward around the hinge axis with the left side plate 301, so that the rear iron roller 22 is pushed backward and away from the rubber roller 36; at the same time, the inner connecting plate A38 on the inner side of the left side plate 301 swings forward under the drive of the rotating shaft 14, and drives the left inner ear plate 37 to swing forward through the inner connecting plate B39, so that the front iron roller 34 is pulled forward and also separated from the rubber roller 36, so that a gap is generated between the three rollers. Finally, open the upper cover 303, insert the bale net 41 alternately into the three rollers, and then lift and put down the wrench 6, and then put down the upper cover 303 to start working.

[0039] The working process is as follows:

[0040] 1. The power source is input from the driving pulley 8 on the left side, and the rubber roller 36 is driven to rotate through the belt transmission mechanism. The rubber roller 36 drives the front iron roller 34 and the rear iron roller 22 through the friction force, and then the bale net 41 is sent into the baling chamber, that is, the bale net 41 passes through the net pressing frame 26 and the bottom of the net laying rod 32 in turn, passes through the dilution pipe 4 upward, and then passes horizontally downward under the front iron roller 34, passes through the top of the rubber roller 36 and between the rear iron roller 22 and continuously enters the baling chamber downward, and is wrapped around the outer periphery of the straw after being baled.

[0041] 2. When laying the net, the brake clutch assembly is not used, and the net hook plate 28 is hung on the small shaft 29 for laying the net (see Fig.10 ) and continuously rises under the drive of the toothed structure on the periphery of the net-laying shaft 29. When the end of the net hook plate 28 is driven to separate from the net-laying shaft 29 and fall, it represents that the number of net-laying turns has been reached. As the net hook plate 28 falls, the net-cutting frame 26 swings backward, and the cutting blade 25 installed thereon rushes toward the bale net 41, and cuts the bale net 41 with the cooperation of the net-blocking crossbeam 24. Then the brake clutch assembly brakes the rubber roller 36.

[0042] 4. Then the rear bin of the bundling chamber is opened, the bundled crop straw is smoothly discharged from the bundling chamber and the rear bin is closed. When the rear bin is opened, the linkage pin 40 is pushed, the linkage pin 40 pushes the connecting rod 7 forward, the connecting rod 7 pushes the cutting net frame 26 to swing back forward, the net hook plate 28 is driven to move forward and is hooked on the net laying small shaft 29 to prepare for the next net laying.

[0043] The above embodiments of the present invention are described in detail, but the contents described are only preferred embodiments of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the invention should still fall within the scope of this patent.

Claims

1. A three-roller mesh-laying device for a baler, comprising a mesh-laying plate, a mesh-laying frame located at the rear of the mesh-laying plate, a mesh-laying mechanism connected to the mesh-laying frame, a mesh-cutting mechanism and a driving mechanism, wherein the mesh-laying frame comprises left and right side plates, a rear side plate and an upper cover plate, and is characterized in that: The mesh-laying mechanism comprises a front iron roller, a rear iron roller, and a rubber roller located between the front iron roller and the rear iron roller in the horizontal direction. Both ends of the rubber roller are supported on the left and right side plates, and the left end is connected to the driving mechanism, and the right end is fixed with a small gear for transmitting power to the mesh-cutting mechanism. The left and right inner ear plates are symmetrically fixed to the front inner sides of the left and right side plates, and the left and right outer adjustment plates are symmetrically fixed to the rear outer sides. The upper ends of the left and right inner ear plates are hinged to the left and right side plates. The left and right ends of the front iron roller are fixedly connected to the lower parts of the left and right inner ear plates. A tension spring assembly I is provided between the middle parts of the left and right inner ear plates and the rear side plates. The lower ends of the left and right outer adjustment plates are hinged to the left and right side plates. The left and right ends of the rear iron roller are fixedly connected to the middle parts of the left and right outer adjustment plates. A tension spring assembly II is provided between the upper parts of the left and right outer adjustment plates and the left and right side plates. A wrench is supported on the outer side of the left side plate near the mesh-laying disk by a rotating shaft. A gap adjustment mechanism I is provided between the wrench and the lower end of the left inner ear plate, and a gap adjustment mechanism II is provided between the wrench and the upper end of the left outer adjustment plate. A web laying rod is connected between the lower front ends of the left and right side plates of the web laying frame, and a dilution pipe is further arranged between the left and right side plates. The dilution pipe is located between the web laying rod and the front iron roller in the horizontal direction and is higher than the front iron roller in the vertical direction. The dilution pipe, web laying rod, front iron roller, rear iron roller and rubber roller are parallel to each other. The gap adjustment mechanism I is composed of an inner connecting plate A located on the inner side of the left side plate and an inner connecting plate B hinged to one end of the inner connecting plate A. The other end of the inner connecting plate A is connected and fixed to the inner end of the rotating shaft of the wrench, and the other end of the inner connecting plate B is hinged to the lower end of the left inner ear plate. The gap adjustment mechanism II is a linkage rod, which is divided into upper and lower parts of the wrench with the rotating shaft as the boundary. When the rotating shaft coincides with the coordinate origin, the lower part of the wrench is located in the fourth quadrant of the coordinate axis, and the upper part of the wrench is located in the first quadrant of the coordinate axis. One end of the linkage rod is hinged to the upper part of the wrench, and the other end is hinged to the upper end of the left outer adjustment plate. The inner connecting plate A is located in the third quadrant of the coordinate axis.

2. The three-roller net-laying device for a baler according to claim 1, characterized in that: The mesh cutting mechanism includes a mesh cutting frame located below the rubber roller in the vertical direction, the mesh cutting frame extends from the left plate to the right plate in the horizontal direction, support shafts are respectively provided on both end surfaces of the mesh cutting frame, and arc-shaped slide grooves corresponding to the support shafts are provided on the left and right plates. Left and right hanging plates hinged to the rubber roller are provided at both ends of the mesh cutting frame, a mesh hook plate is hinged on the right hanging plate, a mesh laying shaft that can hang the mesh hook plate and drive the mesh hook plate to fall is provided on the inner side of the right plate, a toothed structure is provided on the outer peripheral surface of the mesh laying shaft, an iron gear is fixed on the outer end of the mesh laying shaft, and a mesh laying shaft is provided on the outer side of the right plate. There are double gears, the large gear of the double gears is meshed with the small gear, and the other gear of the double gears is meshed with the iron gear. A connecting rod is fixed to the outer end of the support shaft in contact with the right side plate, and a long hole is provided at the other end of the connecting rod and a linkage pin is provided in the long hole. The linkage pin is used to link with the unpacking action of the bale chamber, and push the cutting frame through the connecting rod to make the net hook plate hang on the small net-laying shaft. A cutting blade is fixed to the rear of the cutting frame along its length direction, and a net blocking beam is provided between the left and right side plates to cooperate with the cutting blade to cut the bale net, and the net blocking beam is groove-shaped toward the cutting blade side.

3. The three-roller net-laying device for a baler according to claim 1, characterized in that: The cloth net disk is provided with front and rear two bale net rollers, the bale net roller close to the cloth net frame is supported on left and right fixed brackets, the left and right fixed brackets are connected and fixed to the bottom surface of the cloth net disk, the front sides of the left and right fixed brackets are hinged with door-type pushing frames, left and right movable brackets are arranged above the door-type pushing frames, the other bale net roller is supported on the left and right movable brackets, a pressing net frame is hinged at the rear of the cloth net disk corresponding to the position of the bale net roller close to it, the pressing net frame is composed of two side arms and a horizontal pressing beam connected between the two side arms, and the horizontal pressing beam is pressed on the bale net roller.

4. The three-roller net-laying device for a baler according to claim 2, characterized in that: The net hook plate is hook-shaped, and the outer arc surface of the net hook plate is widened. The right side plate is provided with a limit bearing which is in contact with the outer arc surface of the net hook plate in the net cutting state to prevent the net hook plate from falling. Under the action of external force, the outer arc surface of the net hook plate rises along the limit bearing and is thus hung on the small net-laying shaft. The right side plate is further provided with an eccentric sleeve which limits the hanging height of the net hook plate, and the right side plate is provided with a plurality of adjustment holes corresponding to the eccentric sleeve.

5. The three-roller net-laying device for a baler according to claim 1, characterized in that: The outer side surface of the left side plate is provided with a wrench baffle plate which can be hung with the lower part of the wrench. The wrench baffle plate is an arc surface facing the wrench side and is provided with a clamping groove on the side facing away from the wrench.

6. The three-roller net-laying device for a baler according to claim 1, characterized in that: The driving mechanism comprises a driving pulley which obtains power from a driving system of the baler, a driven pulley connected to a rubber roller, and a brake clutch assembly.

Images