Straw cutting device for papermaking

Abstract

The straw cutting device comprises a shell, the upper surface of the shell is fixedly connected with a feeding port, the lower side of the right surface of the shell is provided with a discharging port, the front side of the upper surface of the shell is fixedly connected with a protective shell, and a first rotatable fixing rod is arranged in the shell; the outer surface of the first fixing rod is fixedly connected with first cutting blades which are evenly distributed. The device further comprises an anti-blocking mechanism. The anti-blocking mechanism comprises mounting frames, fixing barrels, sliding blocks, ejector blocks, first springs and second springs, the mounting frames are fixedly connected to the front side of the upper surface of the shell, the fixing barrels are fixedly connected to the upper sides of the interiors of the mounting frames, the sliding blocks are slidably connected to the interiors of the fixing barrels, and circular concave surfaces are arranged in the middles of the sliding blocks; and springs I are fixedly connected between the front wall surface of the circular concave surface and the step surface of the wall body of the fixed cylinder on the same side. The straw cutting device for papermaking has the advantages that the feed port is prevented from being blocked by straw, the feeding speed of the straw can be increased, and the straw cutting efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of papermaking raw material processing technology, specifically a papermaking straw cutting device. Background Technology

[0002] Paper is an indispensable part of our daily lives. Paper is produced by washing raw materials, pulping, papermaking, post-processing and packaging. Paper mills often use reeds, bamboo, sugarcane bagasse and other straw as raw materials for papermaking. These straws are rich in fiber and suitable for papermaking. These straws need to be chopped for subsequent papermaking processing.

[0003] In the prior art, patent CN205008028U discloses a high-efficiency forage shredder for papermaking, including a material conveyor belt, a guide plate, a feeding hopper, a shredder body, a pre-shredding chamber, a sound-absorbing cotton layer, a shredding shaft, shredding blades, a drive motor, a soundproof cover, a shredding roller, shredding teeth, a hot air blower, an air inlet pipe, an air outlet pipe, an exhaust fan, a dust collector, a discharge pipe, a conveyor belt, spring columns, and casters. The feeding conveyor belt is connected to the feeding hopper on the right side via the guide plate. The pre-shredding chamber is connected to the lower side of the feeding hopper. The bottom end of the pre-shredding chamber is connected to the top end of the shredder body. The outer walls of the shredder body and the pre-shredding chamber are evenly covered with a sound-absorbing cotton layer. A shredding shaft is horizontally arranged at the center of the pre-shredding chamber. Shredding blades are symmetrically arranged on the upper and lower sides of the outer wall of the shredding shaft. The left end of the shredding shaft extends out of the pre-shredding chamber and is connected to the drive motor.

[0004] The high-efficiency straw shredders used in papermaking have the following shortcomings: When feeding straw, a conveyor belt is used to transport the straw to the feed hopper, allowing the straw to fall freely into the interior of the shredder body for shredding. When there is too much straw, because the straw is long and thin, a large amount of straw can easily cross each other, causing the straw to block the interior of the feed hopper. To address this, we propose a straw cutting device for papermaking. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide a papermaking straw cutting device. Through an anti-clogging mechanism, the straw entering the feed inlet is propelled by a rotating push rod, making it easier to fall out of the feed inlet. At the same time, a top block impacts the outer surface of the feed inlet, causing the feed inlet to vibrate and the straw to move downwards due to the vibration. This prevents the straw from clogging the feed inlet and increases the feeding speed of the straw, thereby improving the straw cutting efficiency and effectively solving the problems in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a papermaking straw cutting device, comprising a housing, an inlet fixedly connected to the upper surface of the housing, an outlet opened on the lower right side of the housing, a protective shell fixedly connected to the front side of the upper surface of the housing, a rotatable fixing rod inside the housing, and uniformly distributed cutting blades fixedly connected to the outer surface of the fixing rod, and also including an anti-clogging mechanism.

[0007] Anti-clogging mechanism: It includes a mounting frame, a fixed cylinder, a slider, a top block, a spring one, and a spring two. The mounting frame is fixedly connected to the front side of the upper surface of the housing. The upper side of the mounting frame is fixedly connected to the fixed cylinder. The slider is slidably connected inside the fixed cylinder. The middle of the slider is provided with a circular concave surface. A spring one is fixedly connected between the front wall of the circular concave surface on the same side and the stepped surface of the wall of the fixed cylinder. The spring one is sleeved on the outside of the circular concave surface. The rear side of the slider is slidably connected to the top block. A spring two is fixedly connected between the front surface of the top block on the same side and the inner wall of the slider. Through the anti-clogging mechanism, the grass entering the feed inlet is propelled by the rotating feed lever, making it easier to fall from the feed inlet. At the same time, the top block impacts the outer surface of the feed inlet, causing the feed inlet to vibrate and the grass to move downwards due to the vibration, thereby preventing the grass from clogging the feed inlet and increasing the feed speed of the grass, thus improving the grass cutting efficiency.

[0008] Furthermore, a control switch assembly is provided on the outside of the housing, and the input end of the control switch assembly is electrically connected to an external power source to control the operation of electrical appliances.

[0009] Furthermore, the anti-clogging mechanism also includes a rotating shaft, gear one, gear two, a fixed block, a rotating rod, and a feeding rod. The rotating shaft is rotatably connected to the lower inner side of the mounting frame. Gear one is fixedly connected to the front outer surface of the rotating shaft, and two gear one gears are meshed together. Gear two gears are rotatably connected to the front inner surface of the protective shell, and each gear two gears are meshed with the vertically adjacent gear one gear. A fixed block is fixedly connected to the rear surface of each gear two gear, and the rear surface of each fixed block is provided with a wavy protrusion. The wavy protrusion is slidably connected to the front end of the slider on the same side. A rotating rod is fixedly connected to the rear end of the rotating shaft, and feeding rods are evenly distributed on the outer surface of the rotating rod to transmit driving force.

[0010] Furthermore, a second motor is fixedly connected to the front surface of the housing. The rear end of the output shaft of the second motor is fixedly connected to the front end of the rotating shaft on the left side. The input end of the second motor is electrically connected to the output end of the control switch group to provide driving force.

[0011] Furthermore, the rear surface of the housing is rotatably connected to a drive shaft 1 that is symmetrically distributed on the left and right. Each drive shaft 1 has a pulley fixedly connected to its outer surface. The two pulleys are connected by a belt drive. The front end of each drive shaft 1 located inside the housing is fixedly connected to a rotating seat 1. Each fixed rod is fixedly connected to the edge of the front surface of the rotating seat 1 to cut the grass.

[0012] Furthermore, a motor is fixedly connected to the rear surface of the housing. The front end of the output shaft of the motor is fixedly connected to the rear end of the transmission shaft on the right side. The input end of the motor is electrically connected to the output end of the control switch group to provide driving force.

[0013] Furthermore, a second drive shaft is rotatably connected to the lower inner surface of the housing, a baffle plate is fixedly connected to the upper end of the second drive shaft, a second rotating seat is fixedly connected to the lower outer surface of the second drive shaft, a second fixed rod is fixedly connected to the upper surface of the second rotating seat, and a second cutting blade is fixedly connected to the outer surface of the second fixed rod for secondary cutting of the grass.

[0014] Furthermore, a motor three is fixedly connected to the lower surface of the housing. The upper end of the output shaft of the motor three is fixedly connected to the lower end of the transmission shaft two. The input end of the motor three is electrically connected to the output end of the control switch group to transmit driving force.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This papermaking straw cutting device has the following advantages:

[0016] The anti-clogging mechanism makes the hay entering the feed inlet more easily fall out of the feed inlet due to the rotation of the feeding rod. At the same time, the top block impacts the outer surface of the feed inlet, causing the feed inlet to vibrate and move the hay downwards. This prevents the hay from clogging the feed inlet and increases the feeding speed of the hay, thereby improving the cutting efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a partial cross-sectional view of the present invention.

[0019] Figure 3 This is an enlarged structural diagram of point A in this utility model;

[0020] Figure 4 This is a cross-sectional structural diagram of the present invention;

[0021] Figure 5 This is a schematic diagram of the gear 2 and the fixed cylinder structure of this utility model.

[0022] In the diagram: 1. Housing, 2. Discharge port, 3. Motor 1, 4. Motor 2, 5. Inlet, 6. Anti-blocking mechanism, 601. Mounting bracket, 602. Rotating shaft, 603. Gear 1, 604. Gear 2, 605. Fixing block, 606. Fixing cylinder, 607. Slider, 608. Top block, 609. Spring 1, 610. Spring 2, 611. Rotating rod, 612. Feeding rod, 7. Protective shell, 8. Pulley, 9. Drive shaft 1, 10. Rotating seat 1, 11. Fixing rod 1, 12. Drive shaft 2, 13. Rotating seat 2, 14. Fixing rod 2, 15. Motor 3, 16. Control switch group. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-5This embodiment provides a technical solution: a papermaking straw cutting device, including a housing 1, an inlet 5 fixedly connected to the upper surface of the housing 1, an outlet 2 opened on the lower right side of the housing 1, a protective shell 7 fixedly connected to the front side of the upper surface of the housing 1, a rotatable fixing rod 11 inside the housing 1, uniformly distributed cutting blades fixedly connected to the outer surface of the fixing rod 11, a control switch group 16 outside the housing 1, the input end of the control switch group 16 electrically connected to an external power source, and a symmetrically distributed drive shaft rotatably connected to the rear surface of the housing 1. 19. Each drive shaft 1 has a pulley 8 fixedly connected to its outer surface. The two pulleys 8 are connected by a belt drive. The front end of each drive shaft 1 is fixedly connected to a rotating seat 10 inside the housing 1. The fixed rods 11 are fixedly connected to the front edge of the rotating seat 10. A motor 3 is fixedly connected to the rear surface of the housing 1. The front end of the output shaft of the motor 3 is fixedly connected to the rear end of the right drive shaft 19. The input end of the motor 3 is electrically connected to the output end of the control switch group 16. The rotation of the output shaft of the motor 3 drives the right drive shaft 9 to rotate, thus rotating the right drive shaft 19. The rotation of the side pulley 8 drives the left pulley 8 to rotate (the two pulleys 8 have different diameters), causing the left drive shaft 9 to rotate, which in turn drives the rotating seat 10 to rotate. This causes the fixed rod 1 to rotate around the central axis of the rotating seat 10, which in turn drives the cutting blade 1 to rotate around the central axis of the rotating seat 10. The lower inner surface of the housing 1 is rotatably connected to the drive shaft 12. The upper end of the drive shaft 12 is fixedly connected to a baffle plate. The lower outer surface of the drive shaft 12 is fixedly connected to the rotating seat 13. The upper surface of the rotating seat 13 is fixedly connected to evenly distributed fixed rods. The outer surface of the fixed rod 14 is fixedly connected with evenly distributed cutting blades 2. The lower surface of the housing 1 is fixedly connected with the motor 3 15. The upper end of the output shaft of the motor 3 15 is fixedly connected to the lower end of the transmission shaft 2 12. The input end of the motor 3 15 is electrically connected to the output end of the control switch group 16. The rotation of the output shaft of the motor 3 15 drives the transmission shaft 2 12 to rotate, causing the rotating seat 2 13 to rotate, which in turn drives the fixed rod 2 14 to rotate around the central axis of the rotating seat 2 14, causing the cutting blades 2 to rotate around the central axis of the rotating seat 2 14. It also includes an anti-blocking mechanism 6.

[0025] Anti-clogging mechanism 6: It includes a mounting bracket 601, a fixed cylinder 606, a slider 607, a top block 608, a spring 609, and a spring 610. The mounting bracket 601 is fixedly connected to the front side of the upper surface of the housing 1. A fixed cylinder 606 is fixedly connected to the upper side of the mounting bracket 601. A slider 607 is slidably connected inside the fixed cylinder 606. A circular concave surface is provided in the middle of each slider 607. A spring 609 is fixedly connected between the front wall of the circular concave surface on the same side and the stepped surface of the wall of the fixed cylinder 606. The spring 609 is sleeved on the outside of the circular concave surface. A top block 608 is slidably connected to the rear side of the inside of each slider 607. The front surface of the top block 608 on the same side and the slider 607 are slidably connected. Springs 610 are fixedly connected between the inner walls of the protective shell 7. The anti-blocking mechanism 6 also includes a rotating shaft 602, a gear 603, a gear 604, a fixing block 605, a rotating rod 611, and a feeding rod 612. The rotating shafts 602 are rotatably connected to the lower inner side of the mounting bracket 601. Gears 603 are fixedly connected to the front outer side of the rotating shafts 602. Two gears 603 mesh with each other. Gears 604 are symmetrically distributed on the left and right sides of the inner front surface of the protective shell 7. Gears 604 mesh with the vertically adjacent gears 603. Fixing blocks 605 are fixedly connected to the rear surface of gears 604. The rear surface of fixing blocks 605 is provided with wavy protrusions. The front end of the slider 607 on the same side is slidably connected to the shaft 602. The rear end of the shaft 602 is fixedly connected to the rotating rod 611. The outer surface of the rotating rod 611 is fixedly connected to the evenly distributed feeding rod 612. The front surface of the housing 1 is fixedly connected to the motor 4. The rear end of the output shaft of the motor 4 is fixedly connected to the front end of the shaft 602 on the left side. The input end of the motor 4 is electrically connected to the output end of the control switch group 16. When the grass is placed inside the feed inlet 5, the control switch group 16 is operated to start the motor 4. The output shaft of the motor 4 rotates, which drives the shaft 602 to rotate, causing the rotating rod 611 to rotate, which drives the feeding rod 612 to rotate. The feeding rod 612 drives the grass to move downward, and at the same time, the gear 603 rotates. The gear 604 rotates, causing the fixed block 605 to rotate. The spring 609 applies a forward force to the slider 607, causing the front end of the slider 607 to press against the wave protrusion on the rear side of the fixed block 605. When the fixed block 605 rotates, the front end of the slider 607 is limited by the wave protrusion and moves back and forth, causing the top block 608 to move back and forth. The rear end of the top block 608 hits the front surface of the feed inlet 5, causing the feed inlet 5 to vibrate and making the feeding smoother. Then, the grass is cut by the cutting blade and falls to the upper surface of the baffle plate. The grass slides down the upper surface of the baffle plate and is cut by the cutting blade, falling to the inclined surface of the lower surface inside the outer shell 1, and finally discharged through the discharge port 2.

[0026] The working principle of the papermaking straw cutting device provided by this utility model is as follows: When using the papermaking straw cutting device to cut straw, operate the control switch group 16 to start motor 3 and motor 3 15. The output shaft of motor 3 rotates, driving the right transmission shaft 9 to rotate, causing the right pulley 8 to rotate, which in turn drives the left pulley 8 to rotate (the two pulleys 8 have different diameters), causing the left transmission shaft 9 to rotate, driving the rotating seat 10 to rotate, causing the fixed rod 1 to rotate around the central axis of the rotating seat 10, which in turn drives the cutting blade 1 to rotate around the central axis of the rotating seat 10. The output shaft of motor 3 15 rotates, driving the transmission shaft 2 12 to rotate, causing the rotating seat 2 13 to rotate, which in turn drives the fixed rod 2 14 to rotate around the central axis of the rotating seat 2 14, which in turn drives the cutting blade 2 to rotate around the central axis of the rotating seat 2 14. Place the straw inside the feed inlet 5, operate the control switch group 16, and start the motor. The output shaft of motor 4 rotates, driving shaft 602 to rotate, which in turn rotates rod 611, causing push rod 612 to rotate. Push rod 612 moves the grass downwards, simultaneously causing gear 1 603 to rotate, which in turn rotates gear 2 604, causing fixed block 605 to rotate. Spring 1 609 applies a forward elastic force to slider 607, causing the front end of slider 607 to press against the wave protrusion on the rear side of fixed block 605. When fixed block 605 rotates, the front end of slider 607 is limited by the wave protrusion and moves back and forth, causing top block 608 to move back and forth. The rear end of top block 608 hits the front surface of feed inlet 5, causing feed inlet 5 to vibrate, making the feeding smoother. Afterwards, the grass is cut by cutting blade 1 and falls to the upper surface of baffle plate. The grass slides down the upper surface of baffle plate and is cut by cutting blade 2, falling to the inclined surface of the lower surface inside shell 1, and finally discharged through outlet 2.

[0027] It is worth noting that the motor 3 and motor 15 disclosed in the above embodiments are both YST-7122, the motor 4 is BD2822-R, and the control switch group 16 is provided with control buttons that correspond one-to-one with motor 3, motor 4 and motor 15 and are used to control their switches.

[0028] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A papermaking straw cutting device, comprising a housing (1), wherein a feed inlet (5) is fixedly connected to the upper surface of the housing (1), a discharge outlet (2) is provided on the lower right side of the housing (1), a protective shell (7) is fixedly connected to the front side of the upper surface of the housing (1), a rotatable fixing rod (11) is provided inside the housing (1), and uniformly distributed cutting blades are fixedly connected to the outer surface of the fixing rod (11), characterized in that: It also includes an anti-clogging mechanism (6); Anti-blocking mechanism (6): It includes a mounting bracket (601), a fixed cylinder (606), a slider (607), a top block (608), a spring one (609), and a spring two (610). The mounting bracket (601) is fixedly connected to the front side of the upper surface of the housing (1). The upper side of the mounting bracket (601) is fixedly connected to the fixed cylinder (606). The inside of the fixed cylinder (606) is slidably connected to the slider (607). The middle part of the slider (607) is provided with a circular concave surface. The front wall of the circular concave surface on the same side and the stepped surface of the wall of the fixed cylinder (606) are fixedly connected to the spring one (609). The spring one (609) is sleeved on the outside of the circular concave surface. The rear side of the inside of the slider (607) is slidably connected to the top block (608). The front surface of the top block (608) on the same side and the inner wall of the slider (607) are fixedly connected to the spring two (610).

2. The papermaking straw-cutting device according to claim 1, characterized in that: A control switch group (16) is provided on the outside of the housing (1), and the input end of the control switch group (16) is electrically connected to an external power source.

3. A papermaking straw-cutting device according to claim 2, characterized in that: The anti-clogging mechanism (6) also includes a rotating shaft (602), a first gear (603), a second gear (604), a fixing block (605), a rotating rod (611), and a feeding rod (612). The rotating shafts (602) are all rotatably connected to the lower inner side of the mounting bracket (601). The front outer surface of the rotating shafts (602) is fixedly connected to the first gear (603), and the two first gears (603) are meshed together. The front inner surface of the protective shell (7) is rotatably connected to symmetrically distributed teeth. Gear 2 (604) and gear 2 (604) are both meshed with the vertically adjacent gear 1 (603). The rear surface of gear 2 (604) is fixedly connected with a fixing block (605). The rear surface of the fixing block (605) is provided with a wave protrusion. The wave protrusion is slidably connected to the front end of the slider (607) on the same side. The rear end of the rotating shaft (602) is fixedly connected with a rotating rod (611). The outer surface of the rotating rod (611) is fixedly connected with evenly distributed feeding rods (612).

4. A papermaking straw-cutting device according to claim 3, characterized in that: The front surface of the housing (1) is fixedly connected to a second motor (4). The rear end of the output shaft of the second motor (4) is fixedly connected to the front end of the rotating shaft (602) on the left side. The input end of the second motor (4) is electrically connected to the output end of the control switch group (16).

5. A papermaking straw-cutting device according to claim 2, characterized in that: The rear surface of the housing (1) is rotatably connected to a drive shaft (9) symmetrically distributed on the left and right. The outer surface of the drive shaft (9) is fixedly connected to a pulley (8). The two pulleys (8) are connected by a belt drive. The front end of the drive shaft (9) located inside the housing (1) is fixedly connected to a rotating seat (10). The fixing rod (11) is fixedly connected to the edge of the front surface of the rotating seat (10).

6. A papermaking straw-cutting device according to claim 5, characterized in that: The rear surface of the housing (1) is fixedly connected to a motor (3). The front end of the output shaft of the motor (3) is fixedly connected to the rear end of the transmission shaft (9) on the right side. The input end of the motor (3) is electrically connected to the output end of the control switch group (16).

7. A papermaking straw-cutting device according to claim 2, characterized in that: The lower inner surface of the housing (1) is rotatably connected to a second transmission shaft (12). A baffle plate is fixedly connected to the upper end of the second transmission shaft (12). A rotating seat (13) is fixedly connected to the lower outer surface of the second transmission shaft (12). A uniformly distributed fixing rod (14) is fixedly connected to the upper surface of the rotating seat (13). A uniformly distributed cutting blade is fixedly connected to the outer surface of the fixing rod (14).

8. A papermaking straw-cutting device according to claim 7, characterized in that: The lower surface of the housing (1) is fixedly connected to a motor three (15). The upper end of the output shaft of the motor three (15) is fixedly connected to the lower end of the transmission shaft two (12). The input end of the motor three (15) is electrically connected to the output end of the control switch group (16).

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