CN112956341A

CN112956341A - Straw cutting equipment

Info

Publication number: CN112956341A
Application number: CN202110144997.8A
Authority: CN
Inventors: 俞立荣
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-02-02
Filing date: 2021-02-02
Publication date: 2021-06-15

Abstract

The invention discloses straw cutting equipment, which comprises a straw cutting equipment body consisting of a feeding mechanism, a cutting mechanism, a material box and a base, wherein the bottom of the feeding mechanism is fixedly connected with the top of the cutting mechanism, the material box is positioned right below the bottom of the cutting mechanism, the bottom of the material box is fixedly connected with the top of the base, the bottom of the cutting mechanism is fixedly connected with the top of the base through a supporting block, the right side of the cutting mechanism is fixedly connected with an external driving mechanism, the feeding mechanism comprises a feeding disc, and the invention relates to the technical field of agriculture. This straw cutting equipment has solved behind a lot of crops results, and remaining straw is directly given up, causes the wasting of resources, and after the part was retrieved, traditional processing cutting equipment, in the cutting process, because the rhizome is thicker, blocks the blade easily, and then damages cutter and machining efficiency low, and the cutting is insufficient, more is unfavorable for follow-up kibbling problem of processing.

Description

Straw cutting equipment

Technical Field

The invention relates to the technical field of agriculture, in particular to straw cutting equipment.

Background

The straw is a general term of stem leaf (ear) part of mature crops. Typically refers to the remainder of the wheat, rice, corn, potatoes, oilseed rape, cotton, sugar cane and other crops (typically roughages) after harvesting the seed. More than half of the products of crop photosynthesis exist in the straws, and the straws are rich in nitrogen, phosphorus, potassium, calcium, magnesium, organic matters and the like, are multipurpose renewable biological resources, and are also coarse feed. It features high coarse fibre content (30-40%), and lignin content. Although the lignocellulose cannot be utilized by pigs and chickens, the lignocellulose can be absorbed and utilized by livestock such as ruminants, cattle and sheep.

According to the Chinese patent CN104365299A, the invention discloses a straw cutting machine, which comprises a frame, a feeding device and a discharging device, wherein the frame is provided with a groove bar and a scale; the feeding device is arranged on the right side of the frame, a strip-shaped feeding port is arranged in the middle of the feeding device, inserting pieces are arranged on two sides of the lower end of the feeding device and are inserted into the groove strips to move, and pushing handles are arranged on two sides of the upper end of the feeding device; the discharging device is arranged on the left side of the frame, and a long strip-shaped discharging port is arranged in the middle of the discharging device and connected with a discharging bag. Above-mentioned technical scheme can move at the groove through material feeding unit and promote the pay-off with promoting the handle, has improved the security performance, and the ejection of compact bag cover that material discharging unit set up is at the discharge gate, and the ejection of compact directly inserts the bag, can keep the environment clean and tidy, has still improved the result of use, can also cut the straw through the scale precision measurement, the equidistance, has improved practical function.

After a lot of crops results, remaining straw is directly given up, causes the wasting of resources, and the back is retrieved to the part, and traditional processing cutting equipment is in cutting process, because the rhizome is thick, blocks the blade easily, and then damages cutter and machining efficiency low, cuts inadequately, more is unfavorable for subsequent processing and smashes.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides straw cutting equipment, which solves the problems that after a lot of crops are harvested, the residual straws are directly discarded to cause resource waste, and after part of the straws are recycled, in the cutting process of the traditional processing cutting equipment, because the rootstocks are thick, blades are easily clamped, cutters are damaged, the processing efficiency is low, the cutting is insufficient, and the subsequent processing and crushing are more difficult.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: a straw cutting device, which comprises a straw cutting device body consisting of a feeding mechanism, a cutting mechanism, a material box and a base, the bottom of the feeding mechanism is fixedly connected with the top of the cutting mechanism, the material box is positioned under the bottom of the cutting mechanism, the bottom of the material box is fixedly connected with the top of the base, the bottom of the cutting mechanism is fixedly connected with the top of the base through a supporting block, the right side of the cutting mechanism is fixedly connected with an external driving mechanism, the feeding mechanism comprises a feeding disc, the bottom of the feed tray is fixedly connected with a feed pipe, the bottom of the feed pipe is fixedly connected with the top of the cutting mechanism, the inner wall of inlet pipe rotates and is connected with the extrusion pole, the extrusion pole includes the bull stick, the one end of bull stick is passed through the belt pulley and is connected with the rotation of external motor, connecting rod fixedly connected with resilience mechanism is passed through in the outside of bull stick.

Compared with the tradition, the feeding dish among the feed mechanism has increased the area that bears the weight of the straw, can hold more straw, when the straw gets into the inlet pipe, the lifter rotates, accelerate in the straw flows into cutting mechanism, accelerate production efficiency, the lifter rotation produces the extrusion to the straw, flatten the rhizome of straw, be favorable to cutting mechanism's cutting, the lifter extrudees the straw simultaneously, can make fluffy straw inseparabler, reduce the space that holds, make things convenient for follow-up transportation, rebound mechanism on the lifter, increase the frictional force between lifter and the straw, be favorable to the lifter to pull the straw each other, the whole mixed abundant of using the straw, make things convenient for subsequent crushing to mix.

Preferably, the rebounding mechanism comprises a rebounding bag, the bottom of the rebounding bag is fixedly connected with the outer side of the rotating rod through a connecting rod, and the bottom of the rebounding bag is communicated with a one-way valve.

Preferably, the bottom fixedly connected with filter screen of resilience bag, the outside fixed connection of the bottom of filter screen and connecting rod, the check valve is located the inside of filter screen, the bottom of resilience bag is connected with the baffler through the piece rotation that resets.

Preferably, the rebound block is arranged in the rebound bag, and the top of the rebound bag is provided with an air outlet.

Preferably, the inner wall of the air outlet is fixedly connected with a dispersing block, and a dispersing ball is arranged in the air outlet.

Compared with the prior art, when the extrusion rod extrudes the straws, the rebound mechanism on the extrusion rod is extruded by the straws, the rebound bag contracts, the gas in the rebound bag is compressed, the air is diffused by the diffusion block in the air outlet hole, the diffused air blows dust and impurities in the straws to flow out, so that the impurities are mutually shaken and separated from the inner parts of the straws, has the function of cleaning the straws, simultaneously the rebounding mechanism has the functions of increasing the friction force of the extrusion rod, increasing the grabbing force on the straws, accelerating the transportation of the straws, the baffle plate in the rebounding mechanism, can rotate around the rebounding bag through the rotation of the resetting piece, has the function of preventing the straws from winding the rebounding mechanism, the filter screen can filter the impurity in the straw simultaneously, prevents that impurity from plugging up the check valve, and the inside ball that disperses of venthole has the effect that increases the ball range of dispersing and dispersing, disperses the ball simultaneously and has the effect that the venthole was plugged up to the separation straw.

Preferably, the cutting mechanism comprises a cutting frame, the top of the cutting frame is fixedly connected with the bottom of the feeding pipe, the bottom of the cutting frame is fixedly connected with the top of the base through a supporting block, the right side of the cutting frame is slidably connected with a pressing block, the right side of the pressing block is fixedly connected with an air permeable block through a bearing plate, and the right side of the air permeable block is fixedly connected with an external driving mechanism.

Preferably, the inside of the pressing block is connected with a cutter in a sliding manner, and the right side of the cutter is fixedly connected with an external driving mechanism through a hydraulic telescopic rod.

Preferably, the cutter comprises a cutting edge plate, the right side of the cutting edge plate is fixedly connected with a hydraulic telescopic rod, the left side of the cutting edge plate is fixedly connected with a cutting edge, and an auxiliary cutter is slidably connected inside the cutting edge.

Preferably, the auxiliary cutter comprises a crushing knife, the outer side of the crushing knife is slidably connected with the inside of the cutting edge, the right side of the crushing knife is fixedly connected with the inside of the cutting edge through a spring set, and a friction edge is arranged inside the crushing knife.

Compared with the prior art, when the straws flow into the cutting frame, the bottom in the cutting frame is provided with the intercepting net which has the function of intercepting the whole straws, after the straws are continuously accumulated, the external driving mechanism firstly pushes the ventilating block to drive the pressing block to extrude the straws, after compaction, the fluffiness of the straws is reduced, when the cutter is used for cutting, the straws are prevented from slipping, the lengths of the cut straws are different, meanwhile, the fluffiness of the straws is reduced, the subsequent packaging is convenient, when the cutter is used for cutting the straws, the cutting edges are designed to be flat, the cutting area is increased, the cutting edges are provided with a plurality of groups, the cutting of the straws is accelerated, in the cutting process, the auxiliary cutter on the cutting edges has the function of secondary thinning and cutting on the straws, the crushing cutter on the auxiliary cutter has the function of crushing the cut straws, the subsequent crushing processing is convenient, the friction edges on the crushing cutter have the function of increasing the mutual friction force between the crushing cutter and the, is beneficial to the secondary cutting of the straw by the crushing knife.

(III) advantageous effects

The invention provides straw cutting equipment. The method has the following beneficial effects:

(1) the straw feeding mechanism is provided with the extrusion rod and the cutting mechanism, the area for bearing straws is increased by the feeding disc in the feeding mechanism, more straws can be contained, when the straws enter the feeding pipe, the extrusion rod rotates to accelerate the straws to flow into the cutting mechanism, the production efficiency is accelerated, the extrusion rods rotate mutually to extrude the straws, the roots and the stems of the straws are flattened, and the cutting of the cutting mechanism is facilitated.

(2) The straw smashing device is provided with the extrusion rod and the rebounding mechanism, the extrusion rod extrudes straws, fluffy straws can be more compact, the containing space is reduced, the subsequent transportation is convenient, the rebounding mechanism on the extrusion rod increases the friction force between the extrusion rod and the straws, the straws can be favorably pulled by the extrusion rods, the straw smashing device is full of the whole mixing of the straws, and the subsequent smashing and mixing are convenient.

(3) When the extrusion rod extrudes the straws, the rebounding mechanism on the extrusion rod is extruded by the straws, the rebounding bag contracts, gas in the rebounding bag is compressed and is diffused out through the diffusing blocks in the air outlet holes, and the diffused gas blows dust and impurities in the straws to flow out, so that the impurities and the inner parts of the straws are shaken and separated from each other, the straw cleaning function is realized, meanwhile, the rebounding mechanism has the function of increasing the friction force of the extrusion rod, the grabbing force on the straws is increased, and the transportation of the straws is accelerated.

(4) The invention is provided with the blocking plate and the dispersing ball, the blocking plate in the rebounding mechanism can rotate around the rebounding bag through the rotation of the reset sheet, the effect of preventing the straw from winding the rebounding mechanism is achieved, meanwhile, the filter screen can filter impurities in the straw, the one-way valve is prevented from being blocked by the impurities, the dispersing ball in the air outlet hole has the effect of increasing the range of dispersing air of the dispersing ball, and meanwhile, the dispersing ball has the effect of blocking the straw from blocking the air outlet hole.

(5) The straw cutting machine is provided with the pressing block and the cutter, when straw flows into the cutting frame, the bottom of the cutting frame is provided with the intercepting net, the whole straw is intercepted, after the straw is accumulated continuously, the external driving mechanism firstly pushes the ventilation block to drive the pressing block to extrude the straw, after the straw is compacted, the fluffiness of the straw is reduced, the straw is prevented from slipping when the cutter is used for cutting, the length of the cut straw is different, meanwhile, the fluffiness of the straw is reduced, and the subsequent packaging is facilitated.

(6) The straw cutting device is provided with the cutting edges and the auxiliary cutters, when the cutting device cuts straws, the cutting edges are designed to be flat, the cutting area is increased, the cutting edges are provided with a plurality of groups, the cutting of the straws is accelerated, the auxiliary cutters on the cutting edges have the effect of secondarily refining and cutting the straws in the cutting process, the crushing cutter on the auxiliary cutter plays a crushing role in crushing the cut straws, the subsequent crushing processing is facilitated, the friction edge on the crushing cutter has the effect of increasing the mutual friction force between the crushing cutter and the cut straws, and the secondary cutting of the straws by the crushing cutter is facilitated.

Drawings

FIG. 1 is a schematic structural diagram of a novel solid of the present invention;

FIG. 2 is a schematic structural diagram of a three-dimensional section of the novel feeding mechanism of the present invention;

FIG. 3 is a schematic three-dimensional structure of the novel extrusion stem of the present invention;

FIG. 4 is a schematic structural view of a section of the novel rebounding mechanism of the present invention;

FIG. 5 is a schematic structural view of a three-dimensional half-section of the novel cutting mechanism of the present invention;

FIG. 6 is a schematic structural view of a cross section of the novel cutter of the present invention;

fig. 7 is a schematic enlarged view of a portion a of fig. 6 according to the present invention.

In the figure: 1 straw cutting device body, 2 feeding mechanisms, 21 feeding discs, 22 feeding pipes, 23 extrusion rods, 231 rotating rods, 232 rebounding mechanisms, 2321 rebounding bags, 2322 one-way valves, 2323 filtering nets, 2324 blocking plates, 2325 rebounding blocks, 2326 air outlet holes, 2327 dispersing balls, 3 cutting mechanisms, 31 cutting frames, 32 pressing blocks, 33 breathable blocks, 34 cutters, 341 cutting edge plates, 342 cutting edges, 343 auxiliary cutters, 3431 crushing cutters, 3432 friction edges, 4 material boxes and 5 bases.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, 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 invention.

The first embodiment is as follows:

referring to fig. 1-3, the present invention provides a technical solution: a straw cutting device, which comprises a feeding mechanism 2 and a cutting mechanism 3, straw cutting equipment body 1 that magazine 4 and base 5 are constituteed, the bottom of feed mechanism 2 and cutting mechanism 3's top fixed connection, magazine 4 is located cutting mechanism 3 under the bottom, the bottom of magazine 4 and base 5's top fixed connection, supporting shoe and base 5's top fixed connection is passed through to cutting mechanism 3's bottom, cutting mechanism 3's right side and external drive mechanism fixed connection, feed mechanism 2 includes feeding dish 21, the bottom fixedly connected with inlet pipe 22 of feeding dish 21, the bottom of inlet pipe 22 and cutting mechanism 3's top fixed connection, the inner wall of inlet pipe 22 rotates and is connected with the stripper bar 23, stripper bar 23 includes bull stick 231, the one end of bull stick 231 is passed through the belt pulley and is connected with the rotation of external motor, connecting rod fixedly connected with resilient mounting means 232 is passed through in the outside of bull stick 231.

When the straw cutting machine is used, straws are poured into the feeding mechanism 2 and are influenced by self gravity, the straws enter the feeding pipe 22 through the feeding disc 21, the external motor drives the extrusion rod 23 to rotate through the belt pulley, the straws are extruded by the extrusion rod 23 and flow into the cutting mechanism 3, compared with the traditional machine, the feeding disc 21 in the feeding mechanism 2 increases the area for bearing the straws, more straws can be contained, when the straws enter the feeding pipe 22, the extrusion rod 23 rotates to accelerate the straws to flow into the cutting mechanism 3, the production efficiency is accelerated, the extrusion rods 23 rotate mutually to extrude the straws, the stalks of the straws are flattened, the cutting mechanism 3 is favorable for cutting, meanwhile, the extrusion rods 23 extrude the straws, fluffy straws can be more compact, the containing space is reduced, the subsequent transportation is convenient, the rebounding mechanism 232 on the extrusion rods 23 increases the friction force between the extrusion rods 23 and the straws, the straw is favorably pulled by the extrusion rods 23, the straw is fully mixed integrally, and the subsequent crushing and mixing are facilitated.

Example two:

referring to fig. 1-4, on the basis of the first embodiment, the present invention provides a technical solution: the rebound mechanism 232 comprises a rebound bag 2321, the bottom of the rebound bag 2321 is fixedly connected with the outer side of the rotating rod 231 through a connecting rod, and the bottom of the rebound bag 2321 is communicated with a one-way valve 2322.

The bottom fixedly connected with filter screen 2323 of resilience bag 2321, the outside fixed connection of the bottom and the connecting rod of filter screen 2323, check valve 2322 are located the inside of filter screen 2323, and the bottom of resilience bag 2321 rotates through the piece that resets and is connected with separation board 2324.

The rebound block 2325 is arranged inside the rebound capsule 2321, and the top of the rebound capsule 2321 is provided with an air outlet 2326.

The inner wall of the air outlet 2326 is fixedly connected with a dispersing block, and a dispersing ball 2327 is arranged inside the air outlet 2326.

When the straw cleaning machine is used, when the extrusion rod 23 extrudes straws, the rebound mechanism 232 on the extrusion rod 23 is extruded by the straws, the rebound bag 2321 in the rebound mechanism 232 contracts, gas in the rebound bag 2321 is compressed and is diffused through the diffusion block in the air outlet 2326, when the extrusion rod 23 rotates to the opposite surface, the rebound mechanism 232 is influenced by the elasticity of the rebound block 2325 when the extrusion force of the straws disappears and recovers, and air is sucked through the check valve 2322, compared with the prior art, when the extrusion rod 23 extrudes the straws, the rebound mechanism 232 on the extrusion rod 23 is extruded by the straws, the rebound bag 2321 contracts, the gas in the rebound bag 2321 is compressed and is diffused through the diffusion block in the air outlet 2326, and the diffused gas blows dust and impurities in the straws to flow out, so that the impurities and the interior of the straws shake and are separated from each other, thereby having a cleaning effect on the straws, simultaneously resilient means 232 has the frictional force of increase pressure ram 23, increase the power of grabbing to the straw, accelerate the transportation of straw, separation board 2324 among the resilient means 232, can rotate around resilience bag 2321 through the piece that resets, have the effect that prevents straw winding resilient means 232, impurity in the straw can be filtered to filter screen 2323 simultaneously, prevent that impurity from plugging up the check valve, the inside ball 2327 that disperses of venthole 2326, have the effect that increases and disperse the ball 2327 and disperse the gaseous scope, it has the effect that the venthole 2326 was plugged up to the separation straw to disperse ball 2327 simultaneously.

Example three:

referring to fig. 1-7, on the basis of the first embodiment and the second embodiment, the present invention provides a technical solution: cutting mechanism 3 includes cutting frame 31, and the top of cutting frame 31 and the bottom fixed connection of inlet pipe 22, the top fixed connection of supporting shoe and base 5 are passed through to the bottom of cutting frame 31, and the right side sliding connection of cutting frame 31 has a pressfitting piece 32, and the right side of pressfitting piece 32 is through accepting board fixedly connected with ventilative piece 33, the right side and the external drive mechanism fixed connection of ventilative piece 33.

A cutter 34 is slidably connected inside the pressing block 32, and the right side of the cutter 34 is fixedly connected with an external driving mechanism through a hydraulic telescopic rod.

The cutter 34 comprises a cutting edge plate 341, the right side of the cutting edge plate 341 is fixedly connected with a hydraulic telescopic rod, the left side of the cutting edge plate 341 is fixedly connected with a cutting edge 342, and an auxiliary cutter 343 is slidably connected inside the cutting edge 342.

The auxiliary cutter 343 includes a crushing blade 3431, the outer side of the crushing blade 3431 is slidably connected to the inside of the cutting blade 342, the right side of the crushing blade 3431 is fixedly connected to the inside of the cutting blade 342 through a spring set, and a friction blade 3432 is provided inside the crushing blade 3431.

When the straw cutting machine is used, straws extruded by the feeding mechanism 2 flow into the cutting frame 31, the bottom of the cutting frame 31 is provided with the intercepting net, after the straws are continuously accumulated, the external driving mechanism firstly pushes the air permeable block 33 to drive the pressing block 32 to extrude the straws, after the straws are compacted, the external driving mechanism pushes the cutter 34 to cut the straws inside the cutting frame 31, compared with the traditional technology, when the straws flow into the cutting frame 31, the bottom of the cutting frame 31 is provided with the intercepting net to intercept the whole straws, after the straws are continuously accumulated, the external driving mechanism firstly pushes the air permeable block 33 to drive the pressing block 32 to extrude the straws, after the straws are compacted, the fluffiness of the straws is reduced, when the cutter 34 is used for cutting, the straws are prevented from slipping, the cut straws are different in length, meanwhile, the fluffiness of the straws is reduced, the subsequent packaging is convenient, and when the cutter 34 cuts the straws, cutting edge 342 designs for the flat type, increase cutting area, cutting edge 342 is provided with the multiunit, accelerate the cutting to the straw, in cutting process, auxiliary cutter 343 on cutting edge 342, the effect of secondary refining cutting has to the straw, crushing sword 3431 on the auxiliary cutter 343, the straw after the cutting plays crushing-up effect, convenient subsequent shredding-up processing, the friction edge 3432 on crushing sword 3431, the effect of straw looks mutual friction after having the increase crushing sword 3431 and cutting is favorable to crushing sword 3431 secondary cutting straw.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. The term "comprising", without further limitation, means that the element so defined is not excluded from the group consisting of additional identical elements in the process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a straw cutting equipment, includes straw cutting equipment body (1) that feed mechanism (2), cutting mechanism (3), magazine (4) and base (5) are constituteed, its characterized in that: the bottom of the feeding mechanism (2) is fixedly connected with the top of the cutting mechanism (3), the material box (4) is positioned under the bottom of the cutting mechanism (3), the bottom of the material box (4) is fixedly connected with the top of the base (5), the bottom of the cutting mechanism (3) is fixedly connected with the top of the base (5) through a supporting block, the right side of the cutting mechanism (3) is fixedly connected with an external driving mechanism, the feeding mechanism (2) comprises a feeding disc (21), the bottom of the feeding disc (21) is fixedly connected with a feeding pipe (22), the bottom of the feeding pipe (22) is fixedly connected with the top of the cutting mechanism (3), the inner wall of the feeding pipe (22) is rotatably connected with an extrusion rod (23), the extrusion rod (23) comprises a rotating rod (231), one end of the rotating rod (231) is rotatably connected with an external motor through a belt pulley, the outer side of the rotating rod (231) is fixedly connected with a rebound mechanism (232) through a connecting rod.

2. The straw cutting apparatus of claim 1, wherein: the rebounding mechanism (232) comprises a rebounding bag (2321), the bottom of the rebounding bag (2321) is fixedly connected with the outer side of the rotating rod (231) through a connecting rod, and the bottom of the rebounding bag (2321) is communicated with a one-way valve (2322).

3. The straw cutting apparatus of claim 2, wherein: the bottom fixedly connected with filter screen (2323) of resilience bag (2321), the outside fixed connection of the bottom of filter screen (2323) and connecting rod, check valve (2322) are located the inside of filter screen (2323), the bottom of resilience bag (2321) is connected with separation board (2324) through the piece rotation that resets.

4. The straw cutting apparatus of claim 2, wherein: a rebound block (2325) is arranged inside the rebound bag (2321), and an air outlet hole (2326) is formed in the top of the rebound bag (2321).

5. The straw cutting apparatus of claim 4, wherein: the inner wall of the air outlet hole (2326) is fixedly connected with a dispersing block, and a dispersing ball (2327) is arranged inside the air outlet hole (2326).

6. The straw cutting apparatus of claim 1, wherein: cutting mechanism (3) are including cutting frame (31), the top of cutting frame (31) and the bottom fixed connection of inlet pipe (22), the top fixed connection of supporting shoe and base (5) is passed through to the bottom of cutting frame (31), the right side sliding connection of cutting frame (31) has pressfitting piece (32), the right side of pressfitting piece (32) is through accepting board fixedly connected with ventilative piece (33), the right side and the external drive mechanism fixed connection of ventilative piece (33).

7. The straw cutting apparatus of claim 6, wherein: the inside sliding connection of pressfitting piece (32) has cutterbar (34), the right side of cutterbar (34) passes through hydraulic telescoping rod and external drive mechanism fixed connection.

8. The straw cutting apparatus of claim 7, wherein: the cutter (34) comprises a cutting edge plate (341), the right side of the cutting edge plate (341) is fixedly connected with a hydraulic telescopic rod, the left side of the cutting edge plate (341) is fixedly connected with a cutting edge (342), and an auxiliary cutter (343) is slidably connected inside the cutting edge (342).

9. The straw cutting apparatus of claim 8, wherein: the auxiliary cutter (343) comprises a crushing knife (3431), the outer side of the crushing knife (3431) is in sliding connection with the inside of the cutting edge (342), the right side of the crushing knife (3431) is fixedly connected with the inside of the cutting edge (342) through a spring set, and a friction edge (3432) is arranged inside the crushing knife (3431).