CN113973590B

CN113973590B - Cutting equipment for straw raw materials

Info

Publication number: CN113973590B
Application number: CN202111292366.7A
Authority: CN
Inventors: 鲍华悦; 鲍洪星; 华磊
Original assignee: TWINS (GROUP) CO Ltd; Ganzhou Xinghong Biotechnology Co ltd
Current assignee: TWINS (GROUP) CO Ltd; Ganzhou Xinghong Biotechnology Co ltd
Priority date: 2021-11-03
Filing date: 2021-11-03
Publication date: 2022-11-25
Anticipated expiration: 2041-11-03
Also published as: CN113973590A

Abstract

The invention discloses a cutting device for straw raw materials, which comprises: supporting bench, cutting case and play hopper. The cutting box is installed on the supporting platform. The discharge hopper is arranged at the lower end of the supporting platform. The cutting box has a cutting member and a driving member inside. The cutting member includes a lower hopper, a first cutting assembly, a second cutting assembly, and a third cutting assembly. This cutting equipment of straw raw materials compact structure, design benefit adopts the cutting disc of three kinds of differences to cut the straw raw materials to the direction of rotation of cutting disc is inconsistent during the cutting, can also lock the straw raw materials when doing benefit to the cutting, has avoided the straw raw materials to spout from the cutting room. The material thing after the cooperation upper limit material component can be with cutting supports simultaneously, can cut the straw raw materials in the cutting chamber fast, and makes the straw raw materials cutting even for the cutting speed of straw raw materials has improved cutting efficiency.

Description

Cutting equipment for straw raw materials

Technical Field

The invention relates to the technical field of cutting, in particular to a cutting device for straw raw materials.

Background

The straw raw materials mostly need carry out the segmentation, especially the higher straw raw materials of fibre volume, mode through manual cutting is not only the expense high, processing is slow, and the fibrous tissue in the straw is hardly cut off to ordinary manual cutting's mode, for solving the problem that manual cutting faces, the mode that adopts mechanical cutting now mostly cuts the medicinal material, mainly utilize the blade to implement the extrusion to the straw raw materials and cut off when the cutting, but to the straw raw materials that fibre content is big, the mode of cutting is hardly cut off the fibrous tissue complete extrusion of straw raw materials about the current serrated knife, lead to the cutting inhomogeneous, and the straw of different thickness needs not unidimensional blade, need change, influence work efficiency. And the cut straw powder is easy to splash out during cutting, so that potential safety hazards exist.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention provides a cutting device for straw raw materials.

The technical scheme of the invention is realized as follows:

an apparatus for cutting straw feedstock, comprising:

a support table for supporting each component;

the cutting box is used for cutting materials and is arranged on the side surface of the supporting platform; and

the discharging hopper is used for discharging materials cut in the cutting box and is arranged at the lower end of the cutting box; wherein the content of the first and second substances,

the interior of the cutting box has a cutting member and a drive member, the cutting member comprising:

the blanking hopper is arranged at the upper end of the cutting box and is provided with a main body part, an installation part and an extension part, and an installation gap is formed between the installation part and the extension part;

the first cutting assembly is arranged at the lower end of the discharging hopper, a first plane bearing is arranged between the first cutting assembly and the top wall of the cutting box, the first cutting assembly is provided with a first fluted disc, a first supporting piece and a first cutting disc, and the first supporting piece and the first cutting disc are arranged in the middle of the first fluted disc;

the second cutting assembly is arranged at the lower end of the first cutting assembly, a second plane bearing is arranged between the second cutting assembly and the first cutting assembly, the second cutting assembly is provided with a second fluted disc, a second supporting piece and a second cutting disc, and the second supporting piece and the second cutting disc are arranged between the second fluted disc;

the third cutting assembly is mounted at the lower end of the second cutting assembly, a third planar bearing is arranged between the third cutting assembly and the second cutting assembly, a fourth planar bearing is arranged between the lower end of the third cutting assembly and the bottom wall of the cutting box, the third cutting assembly is provided with a third fluted disc, a third supporting piece and a third cutting disc, and the third supporting piece and the third cutting disc are mounted in the middle of the third fluted disc.

In the present invention, the driving assembly includes a motor, a first gear, a second gear, a third gear, a fourth gear, and a fifth gear, the motor has a first rotating shaft, the first gear and the second gear are mounted on the first rotating shaft, the lower end of the top wall of the cutting box has a second rotating shaft and a third rotating shaft, the third gear and the fourth gear are mounted on the second rotating shaft, the fifth gear is mounted on the third rotating shaft, the first gear is meshed with a third toothed disc, the second gear is meshed with the third gear, the fourth gear is meshed with the fifth gear, the third gear is meshed with the second toothed disc, and the fifth gear is meshed with the first toothed disc.

In the present invention, the diameter of the first gear is twice the diameter of the second gear, which is equal to the diameter of the third gear, which is twice the diameter of the fourth gear, which is equal to the diameter of the fifth gear.

In the present invention, the first support has a guide portion thereon, the guide portion being disposed in the mounting gap.

In the present invention, the first cutting disk has a first cutting hole in the middle thereof, the first cutting hole has a first cutting knife inclined downward inside, and the middle region of the first cutting knife has a first cutting chamber.

In the invention, the second cutting disc is provided with a second cutting hole in the middle, a second cutting knife extending downwards is arranged in the second cutting hole, and a second cutting chamber is arranged in the middle area of the second cutting knife.

In the invention, a third cutting hole is formed in the middle of the third cutting disc, third cutting knives staggered downwards are arranged inside the third cutting hole, and a third cutting chamber is formed in the middle area of each third cutting knife.

According to the invention, the material limiting component is arranged on the discharge hopper, the material limiting component is provided with a fixing component, a limiting component and a push-pull rod, the fixing component is arranged on the outer wall of the discharge hopper, the limiting component is arranged inside the discharge hopper, the fixing component is provided with the limiting component, the push-pull rod is arranged in the middle of the limiting component, one end of the push-pull rod penetrates through the discharge hopper and is connected with the limiting component, the push-pull rod is provided with a push-pull plate, the push-pull plate is positioned in the middle of the fixing component, the fixing component is provided with a guide rod, the push-pull plate is slidably arranged on the guide rod, the guide rod is provided with a first spring and a second spring, the first spring is positioned between the push-pull plate and the fixing component, and the second spring is positioned between the push-pull plate and the discharge hopper.

In the invention, the section of the limiting part is in a right trapezoid shape, a triangular bulge is arranged on the oblique waist of the limiting part, bulb pieces are arranged on two end faces of the limiting part, a sliding groove is arranged on the discharge hopper, and a baffle is arranged on the limiting part and is placed in the sliding groove.

In the invention, the limiting piece is provided with a plane part, the plane part is provided with a first limiting hole, the push-pull rod is provided with a second limiting hole, and one of the first limiting hole and the second limiting hole is provided with a limiting pin.

The straw raw material cutting equipment has the following beneficial effects: this cutting equipment of straw raw materials compact structure, design benefit adopts the cutting disc of three kinds of differences to cut the straw raw materials to the direction of rotation of cutting disc is inconsistent during the cutting, can also lock the straw raw materials when doing benefit to the cutting, has avoided the straw raw materials to spout from the cutting room. The material thing after the cooperation upper limit material component can be supported the cutting simultaneously, makes it slowly fall down, has avoided cutting component lower extreme fretwork, can cut the straw raw materials in the cutting chamber fast, and makes the straw raw materials cutting even for the cutting speed of straw raw materials has improved cutting efficiency.

Simultaneously, the straw can be locked by the three different cutting disks, and the splashing of broken straw can be avoided.

Drawings

FIG. 1 is a schematic view of the structure of the straw material cutting apparatus of the present invention;

FIG. 2 is a right side view of FIG. 1;

FIG. 3 is a sectional view of the straw stock cutting apparatus of the present invention;

FIG. 4 is a partial enlarged view of the point A in FIG. 3;

FIG. 5 is a schematic view showing the internal structure of the cutting box of FIG. 1;

FIG. 6 is a cross-sectional view of the cutting member of FIG. 5;

FIG. 7 is an exploded view of the cutting member of FIG. 5;

FIG. 8 is a schematic view of the first support member shown in FIG. 7;

FIG. 9 is a perspective view of the first, second and third cutting harps of FIG. 7;

FIG. 10 is a structural view of the first chainring of FIG. 7 in a different orientation;

FIG. 11 is a schematic view of the different directional mounting of the first, second and third cutting discs according to the present invention;

FIG. 12 is a schematic structural view of the material limiting member of FIG. 1;

FIG. 13 is another schematic view of the structure of FIG. 12;

fig. 14 is an exploded view of fig. 12.

In the figure: the device comprises a support table 1, a cutting box 2, a discharge hopper 3, a box cover 4 and a cutting channel 5;

a cutting member 6;

the hopper 7, the main body part 8, the mounting part 9, the extension part 10 and the mounting gap 11;

the cutting device comprises a first cutting assembly 12, a first plane bearing 13, a ball 131, an upper retaining plate 132, a lower retaining plate 133, a blocking portion 134, a first fluted disc 14, a first support 15, a first cutting disc 16, a guide portion 17, a blanking hole 18, a support portion 19, a tooth portion 20, a first mounting hole 21, a first fixing hole 211, a boss portion 22, a second mounting hole 23, a bolt 24, a first through hole 241, a counter bore 25, a first cutting hole 26, a first cutter 27 and a first cutting chamber 28;

the second cutting assembly 29, the second plane bearing 30, the second fluted disc 31, the second supporting piece 32, the second cutting disc 33, the second cutting hole 34, the second cutting knife 35 and the second cutting chamber 36;

a third cutting assembly 37, a third planar bearing 38, a fourth planar bearing 39, a third toothed disc 40, a third support 41, a third cutting disc 42, a third cutting hole 43, a third cutting blade 44, and a third cutting chamber 45;

a drive member 46, a motor 47, a speed reducer 471, a screw 472, a sixth gear 473, a first gear 48, a second gear 49, a third gear 50, a fourth gear 51, a fifth gear 52, a first rotation shaft 53, a second rotation shaft 54, and a third rotation shaft 55;

the material limiting device comprises a material limiting member 56, a fixing member 57, a limiting member 58, a push-pull rod 59, a limiting member 60, a push-pull plate 61, a guide rod 62, a first spring 63, a second spring 64, a push-pull part 65, a threaded part 66, a threaded hole 67, a triangular protrusion 68, a ball head part 69, a mounting groove 70, a sliding groove 71, a baffle plate 72, a plane part 73, a first limiting hole 74, a second limiting hole 75, a limiting pin 76 and a discharging gap 77.

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.

As shown in figures 1 to 14, the cutting device for straw raw material of the invention comprises a supporting table 1, a cutting box 2 and an outlet hopper 3. The support table 1 is used to support the respective components. Cutting case 2 is used for cutting the material, and cutting case 2 is installed in the side of brace table 1. Go out hopper 3 and be arranged in discharging cutting case 2 cutting's material, go out hopper 3 and install the lower extreme at cutting case 2. After the straw raw material is put into the lower hopper 7 and cut, the cut material falls down from the discharge hopper 3.

The inside of the cutting box 2 has a cutting member 6 and a driving member 46, the cutting member 6 being for cutting the straw material, and the driving member 46 being for driving the cutting member 6 such that the cutting member 6 is capable of cutting the straw material. The cutting box 2 is hollow, a box cover 4 is arranged on the cutting box 2, and the box cover 4 is arranged on the cutting box 2.

The cutting means 6 comprise a lower hopper 7, a first cutting assembly 12, a second cutting assembly 29 and a third cutting assembly 37. The lower hopper 7 is installed at the upper end of the cutting box 2 at the outside of the cutting box 2, and the first cutting assembly 12, the second cutting assembly 29 and the third cutting assembly 37 are installed at the inside of the cutting box 2. Are vertically arranged and connected by a cutting channel 5.

The lower hopper 7 is mounted on the upper end of the cutting box 2, i.e. the lower hopper 7 is mounted on the box cover 4. The lower hopper 7 includes a main body 8, a mounting portion 9, and an extending portion 10, and a mounting gap 11 is provided between the mounting portion 9 and the extending portion 10. The main body part 8 is funnel-shaped, and straw raw materials are put into the main body part 8. The mounting portion 9 is used for mounting the lower hopper 7 on the box cover 4, and the mounting manner adopts movable connection and can adopt bolts 24 for connection. The extending part 10 extends into the guiding part 17 of the first supporting part 15, so that the straw raw material can fall into the first supporting part 15, and the straw raw material is prevented from falling onto the first supporting part 15.

The first cutting assembly 12 is mounted to the lower end of the lower bin 7, the first cutting assembly 12 has a first planar bearing 13 between the first cutting assembly 12 and the top wall of the cutting box 2, the first cutting assembly 12 has a first toothed disc 14, a first support 15 and a first cutting disc 16, the first support 15 and the first cutting disc 16 are mounted intermediate the first toothed disc 14.

The second cutting assembly 29 is mounted at the lower end of the first cutting assembly 12, a second plane bearing 30 is arranged between the second cutting assembly 29 and the first cutting assembly 12, the second cutting assembly 29 is provided with a second toothed disc 31, a second support 32 and a second cutting disc 33, and the second support 32 and the second cutting disc 33 are mounted in the middle of the second toothed disc 31.

The third cutting assembly 37 is mounted to the lower end of the second cutting assembly 29, a third planar bearing 38 is provided between the third cutting assembly 37 and the second cutting assembly 29, a fourth planar bearing 39 is provided between the lower end of the third cutting assembly 37 and the bottom wall of the cutting box 2, the third cutting assembly 37 includes a third toothed plate 40, a third support 41 and a third cutting plate 42, and the third support 41 and the third cutting plate 42 are mounted to the middle of the third toothed plate 40.

The first plane bearing 13, the second plane bearing 30, the third plane bearing 38 and the fourth plane bearing 39 have the same structure, the first plane bearing 13 includes balls 131, an upper holding plate 132 and a lower holding plate 133, an edge of the lower holding plate 133 has a blocking portion 134, and the blocking portion 134 is used for blocking the upper holding plate 132.

On the first support 15 there is a guide 17, which guide 17 is placed in the mounting gap 11. The second support member 32 and the third support member 41 have the same structure, but do not have the guide portion 17. The first support 15, the second support 32 and the third support 41 have a blanking hole 18 in the middle, and the blanking hole 18 on the first support 15 extends to the middle of the guide portion 17.

The first, second and

third chainrings

14, 31 and 40 have the same structure, and the first, second and

third chainrings

14, 31 and 40 have supporting portions 19, tooth portions 20, first mounting holes 21 and bosses 22, the tooth portions 20 are located around the supporting portions 19, and the tooth portions 20 are respectively engaged with the gears. The boss 22 has a second mounting hole 23 in the middle, the first mounting hole 21 communicates with the second mounting hole 23, the diameter of the first mounting hole 21 is larger than that of the second mounting hole 23, and the first support 15, the second support 32, the third support 41, the first cutting disk 16, the second cutting disk 33, and the third cutting disk 42 are all mounted in the first mounting hole 21. The first support 15 is arranged at the upper end of the first cutting disk 16, the second support 32 is arranged at the upper end of the second cutting disk 33, and the third support 41 is arranged on the third cutting disk 42, which are fixedly connected through the bolts 24. There is a first fixing hole 211 in the middle of the first mounting hole 21, the bolt 24 is placed in the first fixing hole 211, and there are counterbores 25 on the first, second and

third supports

15, 32 and 41, and the counterbores 25 are used to place the bolt 24 such that the highest face of the bolt 24 is lower than the depth of the counterbores 25.

In addition, as shown in fig. 11, which is a structural diagram of the first cutting disk 16, the second cutting disk 33 and the third cutting disk 42, the straw material firstly enters from the middle of the first cutting disk 16, then enters from the middle of the second cutting disk 33, and finally enters from the middle of the third cutting disk 42. First through holes 241 are provided in the first, second and

third cutting disks

16, 33 and 42, and the first through holes 241 are used for placing and fixing the bolts 24.

The first cutting disk 16 has a first cutting hole 26 in the middle, the first cutting hole 26 has a first cutter 27 inclined downward inside, and a middle region of the first cutter 27 has a first cutting chamber 28.

The second cutting disk 33 has a second cutting hole 34 in the middle, a second cutting blade 35 extending downward inside the second cutting hole 34, and a second cutting chamber 36 in the middle region of the second cutting blade 35.

The third cutting disk 42 has a third cutting hole 43 in the middle thereof, the third cutting hole 43 has a third cutting blade 44 staggered downward inside thereof, and the middle region of the third cutting blade 44 has a third cutting chamber 45.

The first, second, and

third cutters

27, 35, 44 each extend downwardly, with the first cutter 27 extending into the second mounting hole 23 of the first chainring 14, the second cutter 35 extending into the second mounting hole 23 of the second chainring 31, and the third cutter 44 extending into the second mounting hole 23 of the third chainring 40. And the first cutting blade 27 and the third cutting blade 44 are oriented in opposite directions.

And the sizes of the chambers of the first cutting chamber 28, the second cutting chamber 36 and the third cutting chamber 45 are gradually reduced, so that straw raw materials can be better cut, larger straw raw materials can be gradually cut, and the problem that the straw raw materials with larger diameters are difficult to cut off at one time is avoided. Meanwhile, the direction of the cutting knife is inconsistent, so that straw raw materials can be cut uniformly, and the cutting efficiency is improved.

As shown in fig. 5, the driving unit includes a motor 47, a first gear 48, a second gear 49, a third gear 50, a fourth gear 51, and a fifth gear 52, the motor 47 has a first rotating shaft 53, the first gear 48 and the second gear 49 are mounted on the first rotating shaft 53, the lower end of the top wall of the cutting box 2 has a second rotating shaft 54 and a third rotating shaft 55, and the second rotating shaft 54 and the third rotating shaft 55 are mounted on the bottom wall of the box cover 4. The third gear 50 and the fourth gear 51 are mounted on the second rotating shaft 54, the fifth gear 52 is mounted on the third rotating shaft 55, the first gear 48 is in meshed connection with the third fluted disc 40, the second gear 49 is in meshed connection with the third gear 50, the fourth gear 51 is in meshed connection with the fifth gear 52, the third gear 50 is in meshed connection with the second fluted disc 31, and the fifth gear 52 is in meshed connection with the first fluted disc 14.

The motor 47 is connected to a speed reducer 471 at the lower end of the cutting box 2 and on the side surface of the supporting table 1, a screw 472 is provided on the speed reducer 471, a sixth gear 473 is provided at the lower end of the first rotating shaft 53, the sixth gear 473 is engaged with the screw 472, and the first rotating shaft 53 is driven to rotate by the motor 47.

The diameter of the first gear 48 is twice the diameter of the second gear 49, the diameter of the second gear 49 is equal to the diameter of the third gear 50, the diameter of the third gear 50 is twice the diameter of the fourth gear 51, and the diameter of the fourth gear 51 is equal to the diameter of the fifth gear 52.

The first rotating shaft 53 is driven to rotate by the motor 47, the third fluted disc 40 is driven to rotate by the first gear 48, the second fluted disc 31 is driven to rotate by the third gear 50, the third fluted disc 40 is driven to rotate by the fifth gear 52, and the rotating speeds of the third gear 50 and the second gear 49 are consistent and are consistent with the rotating speed of the first gear 48 because the diameter of the second gear 49 is equal to that of the third gear 50, and the rotating speeds of the second gear 49 and the first gear 48 are consistent because both the second gear 49 and the first gear 48 are installed on the first rotating shaft 53, so that the rotating speeds are consistent, and the rotating speed of the third gear 50 is consistent with that of the first gear 48. Since the fourth gear 51 and the third gear 50 are mounted on the same rotation shaft, the fourth gear 51 and the third gear 50 have the same rotation speed, that is, the second rotation shaft 54 and the first rotation shaft 53 have the same rotation speed. The fifth gear 52 is meshed with the fourth gear 51, so that the rotation speed of the fifth gear 52 is consistent with that of the fourth gear 51, and therefore, the rotation speeds of the first gear 48, the second gear 49, the third gear 50, the fourth gear 51 and the fifth gear 52 are consistent. However, due to the non-uniform diameters of the first gear 48, the third gear 50, and the fifth gear 52, the rotational speeds of the first gear 14, the second gear 31, and the third gear 40 are not uniform, the rotational speed of the first gear 14 is greater than the rotational speed of the second gear 31 is greater than the rotational speed of the third gear 40, and the rotational directions of the first gear 48 and the third gear 40 are opposite because the first gear 48 and the third gear 40 are in direct meshing engagement. The second gear 49 and the first gear 48 are located on the same rotation shaft, the second gear 49 and the first gear 48 rotate in the same direction, but the third gear 50 and the second gear 49 are meshed and connected, so the rotation directions are opposite, and therefore, the rotation directions of the third gear 50 and the first gear 48 are opposite, that is, the rotation directions of the second gear 31 and the third gear 40 are opposite. However, the fourth gear 51 and the third gear 50 are located on the same rotation shaft, so the fourth gear 51 and the third gear 50 rotate in the same direction, and the fifth gear 52 is meshed with the fourth gear 51, so the fourth gear 51 and the first gear 48 rotate in opposite directions, and the fifth gear 52 and the first gear 48 rotate in the same direction. That is, the first toothed disc 14 and the third toothed disc 40 rotate in the same direction and are opposite to the second toothed disc 31, respectively, so as to generate an engaging force, thereby preventing the straw raw material from bursting out during cutting. At the same time, the cutting speed of the first cutting harp 16 is maximized, followed by the second cutting harp 33 and finally by the third cutting harp 42, due to the non-uniform ratio of rotation speeds.

The cutting channel 5 is composed of the middle portion of the lower hopper 7, the blanking hole 18 of the first support 15, the first cutting hole 26, the second mounting hole 23 on the first fluted disc 14, the second cutting hole 34, the second mounting hole 23 on the second fluted disc 31, the third cutting hole 43 and the second mounting hole 23 on the third fluted disc 40.

And, the boss 22 on the first toothed disc 14 is disposed in the middle of the second support member 32, the boss 22 on the second toothed disc 31 is disposed in the middle of the third support member 41, and the boss 22 on the third toothed disc 40 is disposed in the discharge hopper 3 through the fourth plane bearing 39 and the cutting box 2.

The discharging hopper 3 is provided with a material limiting member 56, and the material limiting member 56 supports against the cut material to prevent the material from directly falling down to cause uneven cutting of part of the material in the cutting channel 5. When the uniformity of the material cut needs to be adjusted, only the distance between the limiting member 58 and the protrusions 22 on the third toothed disc 40 needs to be changed, and when the distance between the limiting member 58 and the protrusions 22 on the third toothed disc 40 is larger, the uniformity of the cut is lower. The uniformity of the cut is higher when the distance between the limiting member 58 and the boss 22 on the third toothed disc 40 is smaller.

The material restriction member 56 is provided with a fixing member 57, a restriction member 58, and a push-pull rod 59. The fixing part 57 is installed on the outer wall of the discharge hopper 3, and the fixing part 57 is C-shaped. The limiting part 58 is arranged inside the discharging hopper 3, the fixing part 57 is provided with a limiting part 60, the push-pull rod 59 is arranged in the middle of the limiting part 60, and one end of the push-pull rod 59 penetrates through the discharging hopper 3 to be connected with the limiting part 58. The push-pull rod 59 is provided with a push-pull plate 61, the push-pull plate 61 is positioned in the middle of the fixing member 57, the fixing member 57 is provided with a guide rod 62, and the push-pull plate 61 is slidably mounted on the guide rod 62. The guide rod 62 is provided with a first spring 63 and a second spring 64, the first spring 63 is positioned between the push-pull plate 61 and the fixing member 57, and the second spring 64 is positioned between the push-pull plate 61 and the discharge hopper 3. When the straight waist of the restriction member 58 comes into contact with the hopper 3, the first spring 63 and the second spring 64 are in a natural state. When the limiting member 58 moves toward the protrusion 22 of the third toothed disc 40, the first spring 63 is stretched and the second spring 64 is compressed.

The push-pull rod 59 has a push-pull portion 65 at one end and a threaded portion 66 at the other end, and the restriction member 58 has a threaded hole 67 therein, the threaded portion 66 being disposed in the threaded hole 67.

Meanwhile, the push-pull plate 61 can move on the guide rod 62, and the guide rod 62 is fixed on the fixing member 57 and cannot move on the fixing member 57.

The limiting piece 58 is in a right trapezoid shape in cross section, the inclined waist of the limiting piece 58 is provided with a triangular protrusion 68, and the triangular protrusion 68 is used for supporting materials, so that the roughness of the surface of the limiting piece is large, the materials are prevented from directly falling, and the materials can stay for a long time. The dwell time of the material is varied according to the distance to the lugs 22 on the third cog 40. The limiting member 58 is provided with ball head pieces 69 on two end faces, the limiting member 58 is provided with a mounting groove 70, and the ball head pieces 69 are placed in the mounting groove 70. The ball head piece 69 can ensure that a gap exists between the limiting piece 58 and the discharging hopper 3, and materials are prevented from falling into the gap, so that the limiting piece 58 cannot move. The discharge hopper 3 is provided with a sliding groove 71, the limiting member 58 is provided with a baffle plate 72, and the baffle plate 72 is arranged in the sliding groove 71. The stop plate 72 prevents the limiting member 58 from falling to the connection between the push-pull rod 59 and the limiting member 58 when the limiting member 58 moves to the lower end of the boss 22 of the third toothed disc 40.

The limiting member 60 has a planar portion 73, the planar portion 73 has a first limiting hole 74, the push-pull rod 59 has a second limiting hole 75, and one of the first limiting hole 74 and the second limiting hole 75 has a limiting pin 76. The push-pull rod 59 is slidable in the middle of the stopper 60. When the push-pull plate 61 is adjusted so that the first limit hole 74 corresponds to the second limit hole 75, the position of the push-pull rod 59 is limited by inserting the limit pin 76, and the position of the limit member 58 is fixed.

Moreover, a discharging gap 77 exists between the oblique waist of the limiting part 58 and the discharging hopper 3, and the discharging gap 77 can enable the cut material level to fall down, so that the material accumulation and blockage are avoided.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A straw material cutting apparatus, comprising:

a support table for supporting the respective components;

the discharging hopper is used for discharging materials cut in the cutting box and is arranged at the lower end of the cutting box;

wherein the interior of the cutting box has a cutting member and a driving member, the cutting member comprising: the blanking hopper is arranged at the upper end of the cutting box and is provided with a main body part, an installation part and an extension part, and an installation gap is formed between the installation part and the extension part;

the first cutting assembly is mounted at the lower end of the discharging hopper, a first plane bearing is arranged between the first cutting assembly and the top wall of the cutting box, the first cutting assembly is provided with a first fluted disc, a first supporting piece and a first cutting disc, and the first supporting piece and the first cutting disc are mounted in the middle of the first fluted disc; the first support is provided with a guide part which is arranged in the mounting gap;

a third cutting assembly mounted to a lower end of the second cutting assembly, the third cutting assembly and the second cutting assembly having a third planar bearing therebetween and a fourth planar bearing therebetween, the third cutting assembly having a third chainring, a third support member and a third cutting chainring, the third support member and the third cutting chainring being mounted intermediate the third chainring;

the middle of the first cutting disc is provided with a first cutting hole, the interior of the first cutting hole is provided with a first cutting knife which is downwards inclined, and the middle area of the first cutting knife is provided with a first cutting chamber;

a second cutting hole is formed in the middle of the second cutting disc, a second cutting knife extending downwards is arranged inside the second cutting hole, and a second cutting chamber is formed in the middle area of the second cutting knife;

a third cutting hole is formed in the middle of the third cutting disc, third cutting knives staggered downwards are arranged in the third cutting hole, and a third cutting chamber is formed in the middle area of each third cutting knife;

the first cutting knife extends into the first fluted disc, the second cutting knife extends into the second fluted disc, the third cutting knife extends into the third fluted disc, the direction directions of the first cutting knife and the third cutting knife are opposite, and the sizes of the cavities of the first cutting chamber, the second cutting chamber and the third cutting chamber are gradually reduced;

the material limiting device comprises a discharge hopper, a limiting component and a push-pull rod, wherein the discharge hopper is provided with the material limiting component, the limiting component is arranged on the outer wall of the discharge hopper, the limiting component is arranged in the discharge hopper, the limiting component is arranged on the fixing component, the push-pull rod is arranged in the middle of the limiting component, one end of the push-pull rod penetrates through the discharge hopper and is connected with the limiting component, the push-pull rod is provided with a push-pull plate, the push-pull plate is positioned in the middle of the fixing component, the fixing component is provided with a guide rod, the push-pull plate is slidably arranged on the guide rod, the guide rod is provided with a first spring and a second spring, the first spring is positioned between the push-pull plate and the fixing component, and the second spring is positioned between the push-pull plate and the discharge hopper; the section of the limiting piece is in a right trapezoid shape, and the inclined waist of the right trapezoid faces the third fluted disc;

the gears of the driving member are respectively engaged with the teeth of the first, second and third fluted discs, drive the first and third fluted discs to rotate in the same direction and opposite to the second fluted disc, and sequentially reduce the cutting speeds of the first, second and third cutting discs.

2. The straw feedstock cutting apparatus of claim 1, wherein the drive member includes a motor having a first rotational axis, first and second gears mounted on the first rotational axis, a second and third rotational axis at a lower end of the top wall of the cutting box, third and fourth gears mounted on the second rotational axis, a fifth gear mounted on the third rotational axis, the first and third gears being in meshing engagement, the second and third gears being in meshing engagement, the fourth and third gears being in meshing engagement, the third and fifth gears being in meshing engagement, the fifth gear being in meshing engagement with the first gear.

3. The straw feedstock cutting apparatus of claim 2, wherein the first gear has a diameter that is twice a diameter of a second gear, the second gear having a diameter that is equal to a diameter of a third gear, the third gear having a diameter that is twice a diameter of a fourth gear, the fourth gear having a diameter that is equal to a diameter of a fifth gear.

4. The straw feedstock cutting apparatus of claim 1, wherein the limiting member has a triangular protrusion at its diagonal waist, the limiting member has bulbous members at both ends, the discharge hopper has a sliding slot, and the limiting member has a baffle plate disposed in the sliding slot.

5. The straw material cutting device according to claim 1, wherein the position-limiting member has a planar portion, the planar portion has a first position-limiting hole, the push-pull rod has a second position-limiting hole, and one of the first position-limiting hole and the second position-limiting hole has a position-limiting pin.