CN111713271A

CN111713271A - Automatic straw baling and wrapping device

Info

Publication number: CN111713271A
Application number: CN202010520017.5A
Authority: CN
Inventors: 魏占文; 张�浩; 毛晓峰
Original assignee: Chengde Lvnong Machinery And Equipment Manufacturing Co ltd
Current assignee: Chengde Lvnong Machinery And Equipment Manufacturing Co ltd
Priority date: 2020-06-09
Filing date: 2020-06-09
Publication date: 2020-09-29

Abstract

The invention discloses an automatic straw baling and wrapping device, and relates to the technical field of agricultural equipment. The method comprises the following steps: the base is connected to a baling straw outlet of the straw baling equipment; the discharging piece is fixedly connected to the base; the supporting wheels are arranged around the discharging piece and are respectively and rotatably connected with the third supporting pieces; the second driving wheel is arranged at the discharge port and is supported by a plurality of supporting wheels in a contact manner; the hydraulic motor is connected to the base and drives the first driving wheel to rotate; the winding mechanism is used for wrapping the straw bales; a shearing mechanism for shearing the mesh belt; and the distance measuring mechanism is arranged on one side of the discharging part and used for measuring the pushing length of the straw bale. The straw bundling and wrapping machine can replace manual work to automatically complete straw bundling and wrapping work, reduces the labor cost, reduces the operation cost of straw recycling, and avoids harm to human bodies caused by bagging operation.

Description

Automatic straw baling and wrapping device

Technical Field

The invention relates to the technical field of agricultural equipment, in particular to an automatic wrapping device for straw bales.

Background

The method for preparing the feed is one of the important ways for recycling and comprehensively utilizing the straws at present, and has the characteristics of high economic benefit and good treatment effect. However, the main recycling equipment in the market at present can not achieve good effects of removing soil and impurities, the smashing and kneading of the straws can not achieve the feed standard, and the feed straw recycling equipment mainly adopts manual bagging and packaging equipment. The equipment has high working strength of operators, poor working environment and higher requirements on the proficiency of related operations, and the popularization and the application of the equipment are limited by the conditions. Normally operate this type of equipment and need tractor driver one, equipment operation personnel one, and operating personnel not only will observe the equipment operational aspect at any time and still accomplish the work of bagging-off simultaneously, and operating personnel operational environment dust is big, and the noise is big, and working strength is high, has great harm to human health.

Disclosure of Invention

The invention aims to solve the technical problem of providing an automatic wrapping device for straw baling, which replaces manual work to automatically complete wrapping work of straw baling, reduces the labor cost, reduces the operation cost of straw recycling, and avoids harm to human bodies caused by bagging operation.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows: an automatic straw baling wrapping device, comprising: the base is connected to a baling straw outlet of the straw baling equipment;

the discharging part is provided with a feeding hole, a discharging hole and an inner cavity, is fixedly connected to the base, and is used for pressing and bundling straws to enter from the feeding hole and to exit from the discharging hole through the inner cavity;

the supporting wheels are arranged around the discharging piece and are respectively and rotatably connected with a plurality of third supporting pieces, and each third supporting piece is fixedly connected with the base;

the second driving wheel is arranged at the discharge port, is supported by a plurality of supporting wheels in a contact manner, and is in transmission connection with the first driving wheel, and the center of the second driving wheel is superposed with the center of the discharge part;

the output part of the hydraulic motor is connected with the first driving wheel and drives the first driving wheel to rotate;

the winding mechanism comprises a mesh belt roller and a clockwork spring, the mesh belt roller rotates around the center of the discharging piece, and the clockwork spring enables a mesh belt on the mesh belt roller to be always in a tightened state;

the shearing mechanism is arranged on one side of the discharging part and comprises a blade and a fourth connecting piece, the fourth connecting piece is provided with a fixing part, the blade is connected to the fixing part, and the fourth connecting piece is connected with the discharging part; the shearing mechanism further comprises a first hydraulic cylinder, the first hydraulic cylinder is arranged in parallel with the discharging part, the first hydraulic cylinder is connected with the fourth connecting piece, the head of a piston rod of the first hydraulic cylinder is connected with a fifth connecting piece, and when the piston rod of the first hydraulic cylinder is contracted, the mesh belt wound at the head of the piston rod is cut off by the blade; the shearing mechanism further comprises a pressing piece, and when a piston rod of the first hydraulic cylinder contracts, the pressing piece and the fifth connecting piece clamp the head of the mesh belt cut off at the side of the mesh belt roller.

And the distance measuring mechanism is arranged on one side of the discharging part and used for measuring the pushing length of the straw bale.

In some embodiments of the present application, the cutting mechanism is further provided with two serrated plates, one side of each serrated plate is fixedly connected to a fifth connecting piece and is respectively located on the upper side and the lower side of the blade and is parallel to the blade, a serrated concave-convex portion is arranged on the suspended side of each serrated plate, and the serrated concave-convex portion and the cutting edge of the blade are oppositely arranged.

In some embodiments of this application, the mechanism of cuting still is equipped with first sleeve, first sleeve is parallel first pneumatic cylinder sets up and sliding sleeve locates the fourth shaft outside, the third connecting piece is connected to the fourth shaft, a terminal fixed connection of first sleeve compress tightly the piece, second spring is connected to another terminal contact of first sleeve, second spring housing is located the fourth shaft outside.

In some embodiments of this application, it still is equipped with the guiding axle to cut off the mechanism, guiding axle sliding connection fourth connecting piece, a guiding axle end-to-end connection fifth connecting piece, first pneumatic cylinder drives reciprocating motion is to the guiding axle, another end of guiding axle just is equipped with the induction part for the free end the induction part is reciprocating motion's two extreme positions and is equipped with first proximity switch and second proximity switch respectively.

In some embodiments of the present application, the winding mechanism further comprises a mandrel with a suspended end and a discharge direction, the mandrel is disposed in front of the second driving wheel, the fixed end of the mandrel is connected to a first fixing member, the first fixing member is connected to the second driving wheel, a rotating sleeve is sleeved outside the mandrel, the spring is connected between the mandrel and the rotating sleeve and sleeved on the mandrel, two second fixing members are oppositely sleeved outside the rotating sleeve, the second fixing member is in a truncated cone shape, an end surface of the second fixing member close to the spring side is connected with an outer convex table surface of the rotating sleeve in a contact manner, the mesh belt roller sleeve is disposed on the conical surface of the second fixing member and is axially fixed by the two second fixing members, a third spring is further sleeved outside the rotating sleeve, one end of the third spring is connected with a nut connected outside the rotating sleeve in a contact manner, the other end of the third spring is in contact connection with one end face of the second fixing piece far away from the spring side.

In some embodiments of the present application, a shaft circlip is provided at each end of the rotating sleeve for axially positioning the rotating sleeve, and the shaft circlips are mounted on the mandrel.

In some embodiments of the present application, the distance measuring mechanism includes a first connecting member, one end of the first connecting member is suspended and sleeved with a first shaft, the first shaft is rotatably connected to a distance measuring wheel, a photoelectric proximity switch is arranged above the distance measuring wheel, and the photoelectric proximity switch is connected to the first connecting member; a third shaft is rotatably sleeved at the other end of the first connecting piece, two shaft ends of the third shaft are respectively and fixedly connected with a second supporting piece, and the second supporting piece is fixedly connected with the discharging piece; the second shaft is connected with a first spring, and the other end of the first spring is connected with the second supporting piece.

In some embodiments of the present application, a circle of serrated concave-convex portion is disposed on an outer ring of the distance measuring wheel, a gap portion is disposed on the discharging member along a discharging direction, the concave-convex portion extends into an inner cavity of the discharging member through the gap portion of the discharging member, and the distance measuring wheel is further uniformly provided with a plurality of solid portions and a hollow portion which are alternately disposed along a radial direction.

In some embodiments of the present application, an automatic straw baling and wrapping device is provided, which further includes a fourth supporting member, the fourth supporting member is disposed in front of the wrapping mechanism and opposite to the discharge port horizontally; still include the second pneumatic cylinder, the second pneumatic cylinder afterbody is rotated and is connected the seventh axle, the seventh hub connection the base, the piston rod head of second pneumatic cylinder is rotated and is connected the sixth axle, the seventh connecting piece of sixth hub connection, the second sleeve is connected to the seventh connecting piece, the second sleeve endotheca is equipped with the fifth axle, the fifth axle with the base is connected, connect below the fourth support piece the telescopic outside of second, the piston rod shrink of second pneumatic cylinder drives the fourth support piece winds the fifth axle is rotatory.

In some embodiments of the application, an automatic wrapping device for straw bales is provided, which further comprises a sixth connecting piece, wherein the sixth connecting piece is connected with the base, a third proximity switch is arranged on the sixth connecting piece, and the third proximity switch is arranged right opposite to the seventh connecting piece.

Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:

1. the straw baling press is simple in mechanical structure and convenient to install, the whole straw baling press can be connected to the discharge port of straw baling press equipment through the base, and the straw baling press can be assembled with most manual bagging equipment in the market for use, so that the improvement of the straw baling press is realized;

2. the shearing mechanism is provided with the pressing piece, when the blade cuts off the mesh belt, the mesh belt head on the mesh belt roller is clamped by the pressing piece and the fifth connecting piece together, so that pre-tightening force is provided for the mesh belt during the next winding action, and the strength and the quality of the winding of the mesh belt head are ensured;

3. the winding mechanism is provided with a clockwork spring, when the mesh belt starts to be pulled out, the mesh belt drives the mesh belt roller to rotate and simultaneously applies force to the clockwork spring, when the force of the clockwork spring is increased and exceeds the friction force between the mesh belt roller and the first fixing piece and the second fixing piece, the mesh belt roller rotates around the first fixing piece and the second fixing piece, and the friction force provides pre-tightening force for the mesh belt winding; when the mesh belt is loosened, the original spring can make the mesh belt roller rotate in the opposite direction, and the mesh belt is in a tightening state again, so that the winding quality of the mesh belt is ensured.

4. The distance measuring machine is provided with the distance measuring wheel with the outer ring in a sawtooth shape, the sawtooth of the distance measuring wheel is pricked into the straw bale to drive the distance measuring wheel to rotate in the straw bale discharging process, the distance measuring wheel is provided with a hollow part and an entity part which are alternately arranged, and the photoelectric proximity switch detects the discharging length of the straw bale by detecting the hollow part and the entity part.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the first hydraulic cylinder of the shearing mechanism of the present invention with the piston rod extended;

FIG. 3 is a schematic view of the mechanism of the present invention with the piston rod of the first hydraulic cylinder shortened;

FIG. 4 is a schematic cross-sectional view of the winding mechanism of the present invention;

FIG. 5 is a schematic structural view of a distance measuring mechanism of the present invention;

FIG. 6 is a schematic view of a connection structure of a fourth supporting member and a second hydraulic cylinder according to the present invention;

in the figure: 1. a first drive pulley; 2. a hydraulic motor; 3, a tension wheel; 4. a first support member; 5. the distance measuring device comprises a distance measuring mechanism 501, a second support member 502, a first connecting member 503, a first shaft 504, a photoelectric proximity switch 505, a distance measuring wheel 506, a first spring 507, a second shaft 508 and a third shaft; 6. a third support member; 7. a gap part; 8. discharging parts; 9. a support wheel; 10. a base; 11. the cutting mechanism comprises a cutting mechanism 1101, a blade 1102, a fixing portion 1103, a sensing portion 1104, a first proximity switch 1105, a second connecting piece 1106, a second proximity switch 1107, a first hydraulic cylinder 1108, a fourth shaft 1109, a second spring 1110, a third connecting piece 1111, a fourth connecting piece 1112, a first sleeve 1113, a pressing piece 1114, a fifth connecting piece 1115, a serrated plate 1116 and a guide shaft; 12. a second transmission wheel; 13. a winding mechanism 1301, a first fixing piece, 1302, a spring, 1303, a rotating sleeve, 1304, a second fixing piece, 1305, a net belt roller, 1306, a third spring, 1307, a nut, 1308, a mandrel, 1309 and a shaft elastic collar; 14. a fifth shaft; 15. a fourth support member; 16. a second sleeve; 17. a sixth connecting member; 18. a third proximity switch; 19. a second hydraulic cylinder; 20. a seventh connecting member; 21. a sixth axis; 22. and a seventh axis.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

As shown in fig. 1, an automatic wrapping device for straw bales comprises: the base 10 is connected to a baling straw outlet of the straw baling equipment;

the discharging part 8 is provided with a feeding hole, a discharging hole and an inner cavity, is fixedly connected to the base 10, and is used for pressing and bundling straws to enter from the feeding hole and to exit from the discharging hole through the inner cavity;

the four supporting wheels 9 are arranged at four corners around the discharging piece 8 and are respectively and rotatably connected with the plurality of third supporting pieces 6, and each third supporting piece 6 is fixedly connected with the base 10;

the second driving wheel 12 is arranged at the discharge port, is supported by four supporting wheels 9 in a contact manner and is in transmission connection with the first driving wheel 1, and the center of the second driving wheel 12 is superposed with the center of the discharge part 8; the surface of the supporting wheel 9 is provided with a circle of grooves, the inner side of the second driving wheel 12 is just clamped in the grooves of the supporting wheel 9, and when the second driving wheel 12 rotates, the supporting wheel 9 also rotates along with the second driving wheel.

The hydraulic motor 2 is connected to the base 10, and the output part of the hydraulic motor 2 is connected with the first driving wheel 1 and drives the first driving wheel 1 to rotate; the first driving wheel 1 drives the second driving wheel 12 to rotate through a chain. The base 10 is further connected with a first supporting piece 4, the first supporting piece 4 is rotatably connected with the tension wheel 3, a long opening is formed in the first supporting piece 4, one end of a rotating shaft of the tension wheel 3 penetrates through the long opening and is fixed on the first supporting piece 4 through a nut 1307, and the tension wheel 3 can move along the long opening to adjust the tightness of the chain.

As shown in fig. 4, the winding mechanism 13 is provided with a spindle 1308 having one end suspended in the air and disposed in front of the second driving wheel 12 along the discharging direction, the fixed end of the spindle 1308 is connected to a first fixing member 1301, the first fixing member 1301 is connected to one end surface of the second driving wheel 12, a rotating sleeve 1303 is sleeved outside the spindle 1308, and the rotating sleeve 1303 can rotate around the spindle 1308. The spring 1302 is connected between the mandrel 1308 and the rotating sleeve 1303 and sleeved on the mandrel 1308, the outer surface of the rotating sleeve 1303 is sleeved with second fixing pieces 1304 in a cone frustum shape in an opposite manner, one end face of each second fixing piece 1304 is in contact connection with an outer boss of the rotating sleeve 1303, the mesh belt roller 1305 is sleeved on the conical surfaces of the two second fixing pieces 1304 and is axially fixed by the two second fixing pieces 1304, the outer surface of the rotating sleeve 1303 is further sleeved with a third spring 1306, one end of the third spring 1306 is in contact connection with a nut 1307 connected with the outer surface of the rotating sleeve 1303, the other end of the third spring 1306 is in contact connection with one end face of the third fixing piece, and the third spring 1306 axially fixes the mesh belt roller 1305 on the rotating sleeve 1303. The nut 1307 is screwed on the rotating sleeve 1303, the third spring 1306 is tightly pressed, the second fixing piece 1304 on the outer side is tightly pressed by the third spring 1306, and the conical surfaces of the two second fixing pieces 1304 axially fix the belt roller 1305. The pressure of the third spring 1306 can be adjusted by adjusting the position of the nut 1307.

A shaft circlip 1309 is provided at each end of the rotating sleeve 1303 for positioning the rotating sleeve 1303 axially, and the shaft circlips 1309 are attached to the spindle 1308.

As shown in fig. 2 and 3, the cutting mechanism 11 is disposed on one side of the discharging member 8, and includes a blade 1101 and a fourth connecting member 1111, the fourth connecting member 1111 has a fixing portion 1102, the blade 1101 is connected to the fixing portion 1102, and the fourth connecting member 1111 is connected to the discharging member 8; the shearing mechanism 11 further comprises a first hydraulic cylinder 1107, the first hydraulic cylinder 1107 is arranged in parallel with the discharging part 8, and the first hydraulic cylinder 1107 is connected with a fourth connecting piece 1111; the head of a piston rod of the first hydraulic cylinder 1107 is connected with a fifth connecting piece 1114, and the fifth connecting piece 1114 moves with the piston rod in a telescopic way; the shearing mechanism 11 is further provided with two serrated plates 1115, one sides of the two serrated plates 1115 are fixedly connected with the fifth connecting piece 1114, are respectively positioned on the upper side and the lower side of the blade 1101 and are parallel to the blade 1101, and the suspended side of the serrated plates 1115 is provided with serrated concave-convex parts which are arranged opposite to the cutting edge of the blade 1101. When a piston rod of the first hydraulic cylinder 1107 contracts, the serrated plate 1115 is right above and below the blade 1101 to clamp the blade 1101 in the middle, and a mesh belt wound on the serrated plate 1115 is cut off by the blade 1101; the cutting mechanism 11 further includes a pressing member 1113, and the pressing member 1113 holds the cut-off head of the web roller 1305 side together with the fifth link 1114 when the piston rod of the first hydraulic cylinder 1107 contracts. The compressing component 1113 is connected to the first sleeve 1112, the first sleeve 1112 is parallel to the first hydraulic cylinder 1107 and is slidably sleeved outside the fourth shaft 1108, the fourth shaft 1108 is connected to the third connecting member 1110, the first sleeve 1112 is slidably connected to the third connecting member 1110, and the third connecting member 1110 guides the first sleeve 1112. The other end of the first sleeve 1112 is connected to a second spring 1109 in a contacting manner, and the second spring 1109 is sleeved outside the fourth shaft 1108. When the first cylinder 1107 rod contracts, it drives the fifth link 1114 back until it abuts the hold down 1113 and the second spring 1109 is compressed to provide hold down force to the belt.

The cutting mechanism 11 is further provided with a guide shaft 1116, the guide shaft 1116 is slidably connected with a fourth connecting piece 1111, and the fourth connecting piece 1111 provides a guiding function for the guide shaft 1116. One end of the guide shaft 1116 is connected with the fifth connecting piece 1114, and the piston rod of the first hydraulic cylinder 1107 stretches to drive the fifth connecting piece 1114 and the guide shaft 1116 to reciprocate. The other end of the guiding shaft 1116 is a free end and is provided with a sensing portion 1103, and the sensing portion 1103 is sleeved on the outside of the guiding shaft 1116. The sensing portion 1103 reciprocates along with the piston rod of the first hydraulic cylinder 1107, and the two limit positions of the reciprocating motion are respectively provided with a first proximity switch 1104 and a second proximity switch 1106, so that the two proximity switches can detect the position of the piston rod of the first hydraulic cylinder 1107. Both proximity switches are connected to the second connecting piece 1105, and the second connecting piece 1105 is fixedly connected to the discharging piece 8.

As shown in figure 5, the distance measuring mechanism 5 is arranged on one side of the discharging piece 8 and is used for measuring the push-out length of the straw bales. The distance measuring mechanism 5 comprises a first connecting piece 502, one end of the first connecting piece 502 is arranged in a hanging mode and is sleeved with a first shaft 503, the first shaft 503 is rotatably connected with a distance measuring wheel 505, a photoelectric proximity switch 504 is arranged above the distance measuring wheel 505, and the photoelectric proximity switch 504 is connected with the first connecting piece 502; the other end of the first connecting piece 502 is rotatably sleeved with a third shaft 508, two shaft ends of the third shaft 508 are respectively and fixedly connected with a second supporting piece 501, and the second supporting piece 501 is fixedly connected with a discharging piece 8; a second shaft 507 is sleeved at the end of the first connecting piece 502 close to the third shaft 508, the second shaft 507 is connected with a first spring 506, and the other end of the first spring 506 is connected with the second supporting piece 501. The first spring 506 pulls the first connecting piece 502 outwards to provide pressure for the distance measuring wheel 505 inwards, so that the distance measuring wheel 505 always clings to the straw bale to rotate in the straw bale pressing moving process, and the slipping phenomenon cannot occur.

The outer ring of the distance measuring wheel 505 is provided with a circle of sawtooth-shaped concave-convex parts, the discharging piece 8 is provided with a gap part 7 along the discharging direction, the concave-convex parts extend into the inner cavity of the discharging piece 8 through the gap part 7 of the discharging piece 8, and the concave-convex parts are clamped into the straw bale and rotate along with the movement of the straw bale. The distance measuring wheel 505 is further uniformly provided with a plurality of solid parts and hollow parts which are alternately arranged along the radial direction. The photoelectric proximity switch 504 detects the solid part and the hollow part of the distance measuring wheel 505, so that the moving distance of the straw bales can be detected.

As shown in fig. 6, the present invention further includes a fourth supporting member 15, the fourth supporting member 15 is disposed in front of the winding mechanism 13 and horizontally opposite to the discharging hole; still include second pneumatic cylinder 19, the second pneumatic cylinder 19 afterbody is rotated and is connected seventh axle 22, seventh axle 22 is connected base 10, the piston rod head of second pneumatic cylinder 19 is rotated and is connected sixth axle 21, seventh connecting piece 20 is connected to sixth axle 21, second sleeve 16 is connected to seventh connecting piece 20, second sleeve 16 endotheca is equipped with fifth axle 14, fifth axle 14 is connected with base 10, connect the outside of second sleeve 16 below fourth support piece 15, the piston rod shrink of second pneumatic cylinder 19 drives fourth support piece 15 and rotates around fifth axle 14. When the fourth supporting member 15 rotates downward, the straw bales placed thereon automatically fall down. In order to detect the blanking condition of the straw bales, the straw bale blanking detection device is further provided with a sixth connecting piece 17, the sixth connecting piece 17 is connected with the base 10, a third proximity switch 18 is arranged on the sixth connecting piece 17, and the third proximity switch 18 is arranged right opposite to a seventh connecting piece 20. When the piston rod of the second hydraulic cylinder 19 is retracted, the fourth support 15 rotates and falls, and the seventh connecting member 20 is away from the third proximity switch 18. When the piston rod of the second hydraulic cylinder 19 extends, the fourth support member 15 is rotated and raised, and the seventh connecting member 20 approaches the third proximity switch 18.

The working process of the invention is as follows: straw baling is slowly released from ejection of compact piece 8 by straw baling equipment, and at the release in-process, the sawtooth of range finding wheel 505 passes opening portion 7 on ejection of compact piece 8 and pricks on the straw baling, and the straw baling removes and drives range finding wheel 505 rotation, and the removal distance that the straw baling was pressed to the hollow portion and the entity portion that the nearly photoelectric switch passes through on the response range finding wheel 505. When the straw bale extends out of the outlet of the discharging part 8, the hydraulic motor 2 is started to drive the first driving wheel 1 to rotate, the first driving wheel 1 drives the second driving wheel 12 to rotate, and the second driving wheel 12 drives the mandrel 1308 to rotate around the center of the discharging part 8, so that the straw bale is wound. At this time, the piston rod of the first hydraulic cylinder 1107 is in a contracted state, the belt roller 1305 has its belt head gripped by the pressing member 1113 and the fifth link 1114, and the second spring 1109 is compressed to provide pressing force to the pressing member 1113. Initially, when the mesh belt is pulled out, since the frictional force between the mesh belt roller 1305 and the second fixed member 1304 is larger than the force of the spring 1302, the mesh belt rotates the mesh belt roller 1305, the second fixed member 1304, and the rotary sleeve 1303 together. Spring 1302 is mounted between sleeve 1303 and arbor 1308, and spring 1302 continues to be wound as sleeve 1303 rotates. When the force of the power spring 1302 becomes larger and larger than the frictional force between the belt roller 1305 and the second mount 1304, the belt roller 1305 starts to rotate around the second mount 1304. When the straws are well bundled and wound, the hydraulic motor 2 stops rotating, the second driving wheel 12 stops rotating, the mesh belt is loosened due to inertia, and the original powerful spring 1302 drives the rotary sleeve 1303 and the mesh belt roller 1305 on the rotary sleeve 1303 to rotate reversely, so that the mesh belt is in a tightened state again. When the hydraulic motor 2 stops rotating after straw baling and wrapping is completed, the piston rod of the first hydraulic cylinder 1107 extends to drive the fifth connecting piece 1114 to move to the tail of straw baling and wrapping. The hydraulic motor 2 is started to drive the mesh belt roller 1305 to rotate for one circle and then stops, and the mesh belt is wound around the two sawtooth plates 1115 connected to the fifth connecting piece 1114 and the head of the piston rod of the first hydraulic cylinder 1107. Then the piston rod of the first hydraulic cylinder 1107 contracts to drive the mesh belt to move towards the blade 1101, and the mesh belt is cut off by the blade 1101, and meanwhile, the fifth connecting piece 1114 and the pressing piece 1113 clamp the mesh belt on the side of the mesh belt roller 1305 so as to provide pre-tightening force for the next winding of the mesh belt. After the mesh belt is cut off, a piston rod of the second hydraulic cylinder 19 contracts to drive the second sleeve 16 to rotate around the fifth shaft 14, and the second sleeve 16 drives the fourth supporting piece 15 to rotate, so that the straw bundle on the fourth supporting piece 15 falls down. So far, the wrapping work of one straw bale is finished.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.

Claims

1. The utility model provides an automatic wrapping device of straw bale, its characterized in that includes:

the base is connected to a baling straw outlet of the straw baling equipment;

the shearing mechanism is arranged on one side of the discharging part and comprises a blade and a fourth connecting piece, the fourth connecting piece is provided with a fixing part, the blade is connected to the fixing part, and the fourth connecting piece is connected with the discharging part; the shearing mechanism further comprises a first hydraulic cylinder, the first hydraulic cylinder is arranged in parallel with the discharging part, the first hydraulic cylinder is connected with the fourth connecting piece, the head of a piston rod of the first hydraulic cylinder is connected with a fifth connecting piece, and when the piston rod of the first hydraulic cylinder is contracted, the mesh belt wound at the head of the piston rod is cut off by the blade; the shearing mechanism further comprises a pressing piece, and when a piston rod of the first hydraulic cylinder contracts, the pressing piece and the fifth connecting piece clamp the head of the cut mesh belt on the side of the mesh belt roller;

2. The automatic straw baling wrapping device according to claim 1, wherein the cutting mechanism further comprises two serrated plates, one side of each of the two serrated plates is fixedly connected with a fifth connecting piece, and the serrated plates are respectively located at the upper side and the lower side of the blade and are parallel to the blade, the hanging side of each of the serrated plates is provided with a serrated concave-convex portion, and the serrated concave-convex portions are opposite to the cutting edge of the blade.

3. The automatic straw baling wrapping device according to any one of claims 1 or 2, wherein the shearing mechanism further comprises a first sleeve, the first sleeve is arranged in parallel with the first hydraulic cylinder and slidably sleeved outside a fourth shaft, the fourth shaft is slidably connected with a third connecting member, one end of the first sleeve is fixedly connected with the pressing member, the other end of the first sleeve is in contact connection with a second spring, and the second spring is sleeved outside the fourth shaft.

4. The automatic wrapping device for straw bales according to claim 1, wherein the shearing mechanism is further provided with a guide shaft, the guide shaft is slidably connected with a fourth connecting piece, one end of the guide shaft is connected with a fifth connecting piece, the first hydraulic cylinder drives the guide shaft to reciprocate, the other end of the guide shaft is a free end and is provided with a sensing part, and a first proximity switch and a second proximity switch are respectively arranged at two limit positions of the sensing part, which do reciprocating motion.

5. The automatic straw baling and wrapping device according to claim 1, wherein the wrapping mechanism further comprises a mandrel with one end suspended in the air and disposed in front of the second driving wheel along the discharging direction, the fixed end of the mandrel is connected to a first fixing member, the first fixing member is connected to the second driving wheel, a rotating sleeve is sleeved outside the mandrel, the spring is connected between the mandrel and the rotating sleeve and sleeved on the mandrel, two second fixing members are oppositely sleeved outside the rotating sleeve, the second fixing member is in a truncated cone shape, one end surface of the second fixing member near the spring side is in contact connection with the outer convex table surface of the rotating sleeve, the mesh belt roller is sleeved on the conical surfaces of the two second fixing members and axially fixed by the two second fixing members, and a third spring is sleeved outside the rotating sleeve, one end of the third spring is in contact connection with a nut connected to the outside of the rotating sleeve, and the other end of the third spring is in contact connection with one end face, far away from the spring side, of the second fixing piece.

6. The automatic straw baling wrapping device as claimed in claim 5, wherein a shaft circlip is provided at each end of the rotating sleeve for axially positioning the rotating sleeve, and the shaft circlips are mounted on the mandrel.

7. The automatic straw baling wrapping device according to claim 1, wherein the distance measuring mechanism includes a first connecting member, one end of the first connecting member is suspended and sleeved with a first shaft, the first shaft is rotatably connected with a distance measuring wheel, a photoelectric proximity switch is arranged above the distance measuring wheel, and the photoelectric proximity switch is connected with the first connecting member; a third shaft is rotatably sleeved at the other end of the first connecting piece, two shaft ends of the third shaft are respectively and fixedly connected with a second supporting piece, and the second supporting piece is fixedly connected with the discharging piece; the second shaft is connected with a first spring, and the other end of the first spring is connected with the second supporting piece.

8. The automatic wrapping device for straw bales according to claim 7, wherein a circle of serrated concave-convex part is arranged on the outer ring of the distance measuring wheel, the discharging piece is provided with a notch part along the discharging direction, the concave-convex part extends into the inner cavity of the discharging piece through the notch part of the discharging piece, and the distance measuring wheel is further uniformly provided with a plurality of solid parts and hollow parts which are alternately arranged along the radial direction.

9. The automatic straw baling wrapping device according to claim 1, further comprising a fourth supporting member, wherein the fourth supporting member is horizontally disposed in front of the wrapping mechanism and opposite to the discharge port; still include the second pneumatic cylinder, the second pneumatic cylinder afterbody is rotated and is connected the seventh axle, the seventh hub connection the base, the piston rod head of second pneumatic cylinder is rotated and is connected the sixth axle, the seventh connecting piece of sixth hub connection, the second sleeve is connected to the seventh connecting piece, the second sleeve endotheca is equipped with the fifth axle, the fifth axle with the base is connected, connect below the fourth support piece the telescopic outside of second, the piston rod shrink of second pneumatic cylinder drives the fourth support piece winds the fifth axle is rotatory.

10. The automatic wrapping device for straw bales according to claim 9, further comprising a sixth connecting piece, wherein the sixth connecting piece is connected with the base, a third proximity switch is arranged on the sixth connecting piece, and the third proximity switch is arranged opposite to the seventh connecting piece.