Wet straw crushing device

Abstract

The invention relates to a wet straw smashing device which comprises a feeding supporting plate used for bearing wet straw and guiding the wet straw to be gathered in the designated direction. The conveying belt is located on one side of the feeding supporting plate and used for conveying the wet straw gathered on the feeding supporting plate in the designated direction. A material stirring mechanism is arranged above the conveying belt and is used for pushing the gathered wet straws and paving the wet straws on the conveying belt in the conveying process of the conveying belt; the cutting-off device is located at the conveying tail end of the conveying belt and used for feeding the wet straw conveyed by the conveying belt to the cutting-off device, and the cutting-off device is configured to evenly cut up the fed wet straw; the rubbing device is located on one side of the cutting device, receives the wet straw cut by the cutting device, rubs the straw and then outputs the straw; by automatically gathering the fed wet straws and automatically and uniformly spreading the wet straws on the conveying belt for conveying, blockage caused by too thick feeding due to local accumulation of the fed wet straws is avoided, and the stability and efficiency of the device are improved.

Description

Technical Field

[0001] This invention relates to the field of agricultural processing technology, specifically to a wet straw crushing device. Background Technology

[0002] The rapid development of the dryland tomato industry has brought enormous pressure to straw disposal. Untreated straw can cause serious environmental pollution, pathogen transmission, and greenhouse gas emissions, becoming a key factor restricting the development of the industry. Composting technology can decompose straw organic matter through aerobic microbial activity to generate stable organic fertilizer, which can reduce pollution and broaden the income channels of livestock enterprises. Therefore, developing straw composting helps to coordinate the contradiction between industrial development and environmental protection, and has significant socio-economic benefits. The first step is to crush the straw and other raw materials. The existing straw crushing method uses traditional electric crushers. After the straw is fed in, it is transported by conveyor belt to the cutting and shredding devices for chopping and shredding. However, since most of the straw is wet and the feeding cannot be guaranteed to be uniform, some parts are easily fed too thickly, increasing the burden on the subsequent cutting and shredding devices and causing blockage risks. Therefore, there is an urgent need for a wet straw crushing device to solve the above problems. Summary of the Invention

[0003] The purpose of this invention is to provide a wet straw crushing device to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a wet straw crushing device, comprising: Feed trays are used to receive wet straw and guide it to gather in a designated direction; A conveyor belt, located on one side of the feed pallet, is used to transport the wet straw gathered on the feed pallet in a designated direction; and A material-pushing mechanism is provided above the conveyor belt, which is configured to push and spread the accumulated wet straw on the conveyor belt during the conveying process. A cutting device is located at the end of the conveyor belt, and a feeding roller is provided between the cutting device and the conveyor belt. The feeding roller is used to feed the wet straw conveyed by the conveyor belt into the cutting device, and the cutting device is configured to uniformly chop the fed wet straw. The shredding device, located on one side of the cutting device, receives the wet straw chopped by the cutting device, shreds it, and then outputs it.

[0005] Preferably, the top of the feeding tray is provided with an arc-shaped groove, which is configured to receive wet straw and gather the wet straw towards the center.

[0006] Preferably, the feeding mechanism includes: Several sets of levers are arranged along the conveying direction, each set of levers including a pair of levers; The drive unit is configured to drive two levers of the same set of levers to move synchronously and in opposite directions; and in the initial state, each set of levers is located at the center axis of the conveyor belt.

[0007] Preferably, the driving device includes a slide groove, in which a slider is slidably mounted, and a driving screw is provided in the slide groove. Each driving screw has two sliders, and the two sliders are connected to the driving screw by screw nuts with opposite threads. Each lever includes a first rod body and a second rod body. The first rod body is connected to the slider, and the second rod body is coaxially inserted into the first rod body. The first rod body has a through groove, in which an adjusting rod passes transversely. The adjusting rod is connected to the end of the second rod body, and moves with the adjusting rod to adjust the extension or retraction of the second rod body into the first rod body. The adjusting rods on all the group levers are interconnected and controlled by a lifting adjustment mechanism, which controls the lifting and lowering movement of the adjusting rods.

[0008] Preferably, a triangular flexible baffle is installed on the end of the second rod facing the conveyor belt. The two triangular flexible baffles of each set of baffles are provided with grooves on their opposite surfaces. The grooves are configured such that when the two triangular flexible baffles move from the center of the conveyor belt toward the edge, the triangular flexible baffles deform within the compression range of the grooves, which is defined as the first deformation. When the two triangular flexible baffles move from the edge toward the center of the conveyor belt, the triangular flexible baffles deform within the expansion range of the grooves, which is defined as the second deformation. The deformation amount of the second deformation is greater than that of the first deformation.

[0009] Preferably, a number of upright plates are spaced apart on both sides of the conveyor belt. Each upright plate is configured to intercept wet straw at the lever when the lever moves toward the edge of the conveyor belt, allowing the lever to pass through only after it has deformed.

[0010] Preferably, each of the upright plates faces the central axis of the conveyor belt and has an arc-shaped block near its bottom. The bottom of the arc-shaped block is in contact with the bottom of the upright plate, and the top of the arc-shaped block is bent toward the central axis of the conveyor belt.

[0011] Preferably, a distributor is provided above the conveyor belt between the feeding mechanism and the feeding tray, and the distributor is located at the central axis of the conveyor belt. The distributor is bent toward the feeding tray and the thickness of the distributor toward the feeding tray is less than the thickness of the other side. The distributor is configured to divide the wet straw conveyed by the conveyor belt into two piles and guide them toward both sides of the conveyor belt.

[0012] Preferably, the top of the distributor is provided with an electric telescopic cylinder, the telescopic end of which is connected to the distributor, and the electric telescopic cylinder is used to control the distance between the distributor and the conveyor belt.

[0013] Preferably, an arc-shaped comb is installed on both sides of the distributor. One end of the arc-shaped comb is connected to the distributor, and the other end is bent toward the feeding mechanism. Several rod-shaped comb teeth are installed on the side of the arc-shaped comb facing the conveyor belt. The length of the rod-shaped comb teeth on each arc-shaped comb gradually increases from the distributor toward the far end of the arc-shaped comb. The arc-shaped comb is configured to guide the oblique wet straw back to the straight position parallel to the conveying direction through the corresponding rod-shaped comb teeth.

[0014] Beneficial effects: The present invention, through the cooperation of the feeding tray and the feeding mechanism, can automatically gather the input wet straw and automatically and evenly spread it on the conveyor belt for transportation, avoiding local accumulation of input wet straw, which would lead to excessive feeding and affect the operation of the subsequent cutting and shredding devices, as well as avoiding blockage, improving the stability and efficiency of the device, and enabling the device to work continuously and stably in the high-efficiency range.

[0015] This invention, through the setting of several sets of levers, can simultaneously spread wet straw from the central axis of the conveyor towards both sides, reducing the process and improving efficiency. Specifically, through the action of the first lever, the second lever, the adjusting lever, and the lifting and adjusting mechanism, the distance between the second lever and the conveyor belt can be controlled as needed, thereby controlling the thickness of the wet straw spread on the conveyor belt. In addition, under the action of the triangular flexible lever, the contact area can be increased to better drive the wet straw to spread laterally. Furthermore, with the cooperation of the groove, during the reciprocating cycle of the lever, a large degree of spreading followed by small-scale adjustments can be achieved, improving the uniformity of spreading.

[0016] This invention, through the setting of a distributor, can pre-process the gathered wet straw before the feeding mechanism, dividing it into two piles to facilitate the subsequent flat-laying operation of the feeding rod. In particular, through the action of the arc comb, the oblique wet straw can be automatically corrected, so that the wet straw is transported to the subsequent cutting device in a more parallel direction, avoiding the risk of oblique wet straw getting tangled on the cutting device, and further improving the overall stability of the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the wet straw crushing device of the present invention; Figure 2 This is a side plan view of the wet straw crushing device of the present invention; Figure 3 This is a cross-sectional view of the wet straw crushing device of the present invention; Figure 4 This is a schematic diagram of the material feeding mechanism of the present invention; Figure 5This is a schematic diagram of the bottom structure of the feeding mechanism of the present invention; Figure 6 This is a plan view of the bottom of the feeding mechanism of the present invention.

[0018] The diagram is labeled as follows: 1. Feed tray; 11. Arc groove; 2. Conveyor belt; 31. Cover plate; 32. Actuator; 321. First rod; 322. Second rod; 323. Through groove; 331. Slide groove; 332. Slider; 333. Drive screw; 334. Drive motor; 34. Adjusting rod; 35. Connecting rod; 36. Slide rail; 37. Electric slider; 38. Triangular flexible actuator; 381. Groove; 4. Cutting device; 41. Cutting spindle; 42. Cutting blade; 5. Shredding device; 51. Shredding spindle; 52. Shredding knife; 6. Vertical plate; 61. Arc block; 7. Distributor; 71. Electric telescopic cylinder; 8. Arc comb; 81. Rod-shaped comb teeth; 9. Feed roller; 10. Screen plate. Detailed Implementation

[0019] To make the objectives and advantages of this invention clearer, the invention will be specifically described below with reference to embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of the invention and does not strictly limit the scope of protection specifically claimed by the invention.

[0020] Example: Figures 1-6 As shown, a wet straw crushing device includes, in sequence, a feeding tray 1, a conveyor belt 2, a cutting device 4, and a shredding device 5 for processing wet straw. A feeding mechanism is provided above the conveyor belt 2. First, the wet straw is placed on the feeding tray 1 and conveyed to the cutting device 4 via the conveyor belt 2. During the conveying process, the feeding mechanism pushes and spreads the wet straw evenly on the conveyor belt 2. The spread wet straw is then conveyed to the cutting device 4, where it is cut evenly. The cut wet straw is then transferred to the shredding device 5, where it is shredded and output.

[0021] In this embodiment, the feeding tray 1, in addition to receiving wet straw, can also guide the wet straw to gather in a designated direction, so that it can be uniformly gathered at a designated location as needed. (Refer to...) Figure 1 and Figure 2 As shown, in this embodiment, the top of the feeding tray 1 is provided with an arc-shaped groove 11, which is configured to receive wet straw and gather the wet straw towards the center. This ensures that no matter how much wet straw is fed in, it will gather in the center before being transported.

[0022] In this embodiment, the feeding mechanism includes a driving device and several sets of levers 32 arranged along the conveying direction. Each set of levers 32 includes a pair of levers 32. The driving device is configured to drive the two levers 32 of the same set of levers 32 to move synchronously and in opposite directions. Initially, each set of levers 32 is located at the central axis of the conveyor belt 2. (Reference) Figures 3-6 As shown, the feeding mechanism also includes a cover plate 31, which is located above the conveyor belt 2 and is used to cover the area above the conveyor belt 2 to reduce dust overflow during conveying. In this embodiment, the driving device includes a chute 331, in which sliders 332 are slidably installed, and a driving screw 333 is provided in the chute 331. Each driving screw 333 is provided with two sliders 332, and the two sliders 332 are sleeved on the driving screw 333 through screw nuts with opposite threads. The end of the driving screw 333 is linked to the output shaft of the driving motor 334 through a linkage mechanism, such as a pulley assembly or a gear set, for driving the output shaft of the driving motor 334. The output power is synchronously transmitted to each drive screw 333. The two levers 32 of each set of drive screws 333 are respectively installed on the two sliders 332 of the same drive screw 333. Taking the drive of a single drive screw 333 as an example, when the drive screw 333 rotates, it can drive the two sliders 332 to move synchronously in opposite directions, and at the same time drive the corresponding lever 32 to move in the desired direction. When the drive lever 32 moves to the edge of the conveyor belt 2, the drive motor 334 rotates in the opposite direction, controls the drive screw 333 to rotate in the opposite direction, thereby controlling the two levers 32 to reset and move. By using one cycle of the lever 32, the wet straw on the conveyor belt 2 can be spread out.

[0023] In one embodiment, each lever 32 includes a first lever body 321 and a second lever body 322. The first lever body 321 is connected to the slider 332, and the second lever body 322 is coaxially inserted into the first lever body 321. A through groove 323 is provided on the first lever body 321, and an adjusting rod 34 passes through the through groove 323. The adjusting rod 34 is connected to the end of the second lever body 322. As the adjusting rod 34 moves, the second lever body 322 extends or retracts into the first lever body 321. The adjusting rods 34 on all groups of levers 32 are interconnected and controlled by a lifting adjustment mechanism. The lifting adjustment mechanism is used to control the lifting and lowering movement of the adjusting rods 34. (See reference...) Figure 5As shown, an adjusting rod 34 passes through the through slots 323 of the two first rods 321 of the same set of levers 32. The ends of each adjusting rod 34 are connected to each other by a connecting rod 35. In this embodiment, the lifting adjustment mechanism adopts a combination of a slide rail 36 and an electric slider 37. The slide rail 36 is set in the same direction as the extension and retraction direction of the second rod. In this embodiment, it is in the vertical direction. The ends of the adjusting rods 34 are connected to each other by the connecting rod 35 and then connected to the electric slider 37. Then, by sliding the electric slider 37 along the slide rail 36, each adjusting rod 34 can be moved, thereby causing the second rod 322 to extend or retract into the first rod 321. The distance between the bottom of the second rod 322 and the conveyor belt 2 can be adjusted according to the amount of wet straw input, and the thickness of the wet straw spread on the conveyor belt 2 can be controlled so that the wet straw can be evenly spread on the conveyor belt 2 under different conditions.

[0024] In another embodiment, based on the above, with reference to Figure 5 As shown, a triangular flexible baffle 38 is installed on the end of the second rod 322 facing the conveyor belt 2 to increase the contact area with the wet straw and better drive the wet straw to spread out. Each set of baffles 32 has two triangular flexible baffles 38 with opposite faces having grooves 381. The grooves 381 are configured such that when the two triangular flexible baffles 38 move from the center of the conveyor belt 2 towards the edge, the triangular flexible baffles 38 deform within the compression range of the grooves 381, which is defined as the first deformation. When the two triangular flexible baffles 38 move from the edge towards the center of the conveyor belt 2, the triangular flexible baffles 38 expand within the range of the grooves 381. The internal deformation is defined as the second deformation, which is greater than the deformation of the first deformation. During one cycle of movement of the lever 32, the first deformation allows the triangular flexible lever 38 to deform within a small range, thereby driving the initially gathered wet straw to spread out to a greater extent. Then, during the resetting process of the lever 32, the second deformation allows the triangular flexible lever 38 to deform within a larger range. At this time, the triangular flexible lever 38 can tilt upwards when it encounters resistance. The tilted triangular flexible lever 38 can be used to further adjust the upper layer of the spread wet straw, making it spread out more evenly.

[0025] In addition, several vertical plates 6 are spaced apart on both sides of the conveyor belt 2. Each vertical plate 6 is configured such that when the lever 32 moves toward the edge of the conveyor belt 2, the vertical plate 6 intercepts the wet straw at the lever, allowing the lever 32 to pass through only after deformation. (See reference) Figures 4-5As shown, the upright plate 6 can intercept wet straw and prevent it from detaching from the conveyor belt 2 during the spreading process. In this embodiment, an arc-shaped block 61 is provided on the side of each upright plate 6 facing the central axis of the conveyor belt 2 and near the bottom. The bottom of the arc-shaped block 61 is attached to the bottom of the upright plate 6, and the top of the arc-shaped block 61 is bent towards the central axis of the conveyor belt 2. Through the action of the arc-shaped block 61, the wet straw that gathers on the edge of the conveyor belt 2 during the spreading process can be guided back towards the center of the conveyor belt 2, avoiding excessive local accumulation.

[0026] Furthermore, based on the above, in this embodiment, the slide rail 36 and the electric slider 37 are set on the upright plate 6, and the upright plate 6 serves as the base to provide displacement control of the adjusting rod 34.

[0027] In another embodiment, based on the above, with reference to Figures 1-6 As shown, a distributor 7 is installed above the conveyor belt 2, between the feeding mechanism and the feed tray 1. The distributor 7 is located at the central axis of the conveyor belt 2, and it bends towards the feed tray 1. The thickness of the distributor 7 on the side facing the feed tray 1 is less than that on the other side. The distributor 7 is configured to divide the wet straw conveyed by the conveyor belt 2 into two piles and guide them towards both sides of the conveyor belt 2. Using the distributor 7, the gathered wet straw can be pre-divided into two piles for conveying, and the divided wet straw is positioned precisely on both sides of the initial state of the feeding rod 32. This allows the feeding rod 32 to better spread the two piles of wet straw evenly and fill the gap in the center during the reset movement, improving both the evenness and efficiency of the spreading. (Reference) Figure 4 As shown, an electric telescopic cylinder 71 is installed on the cover plate 31 at the top of the distributor 7. The telescopic end of the electric telescopic cylinder 71 is connected to the distributor 7. The electric telescopic cylinder 71 is used to control the distance between the distributor 7 and the conveyor belt 2, thereby improving the applicability of the device.

[0028] Furthermore, in another embodiment, based on the above, referring to Figures 5-6As shown, arc-shaped combs 8 are installed on both sides of the distributor 7. One end of the arc-shaped comb 8 is connected to the distributor 7, and the other end is bent towards the feeding mechanism. Several rod-shaped comb teeth 81 are installed on the side of the arc-shaped comb 8 facing the conveyor belt 2, and the length of the rod-shaped comb teeth 81 on each arc-shaped comb 8 gradually increases from the distributor 7 towards the far end of the arc-shaped comb 8. The wet straws that are fed in are not completely parallel to the conveyor belt 2. When the obliquely oriented wet straws are transported to the cutting device 4, they may not be cut properly, or there is a risk of them getting tangled on the cutting device 4, affecting subsequent cutting and shredding operations. Under the action of the comb 8, during the sorting process of the distributor 7, the oblique wet straw is guided to the side by the distributor 7, and then intercepted by one of the bar-shaped comb teeth 81. Under the action of the bar-shaped comb teeth 81, it is guided to move parallel to the conveying direction, so as to perform a pre-combing operation on the wet straw. By using the curved arc comb 8 and the setting that the length of the bar-shaped comb teeth 81 gradually increases from the distributor 7 to the far end of the arc comb 8, the wet straw at different inclination angles can be guided smoothly and gradually combed and corrected, avoiding the wet straw from laterally accumulating at the distributor 7 and the arc comb 8.

[0029] refer to Figure 3 As shown, a feeding roller 9 is provided between the cutting device 4 and the conveyor belt 2. The feeding roller 9 is used to feed the wet straw conveyed by the conveyor belt 2 into the cutting device 4. The cutting device 4 includes a cutting main shaft 41 and a plurality of cutting blades 42 arranged circumferentially on the cutting main shaft 41. The cutting device 4 is configured to uniformly chop the fed wet straw. The shredding device 5 includes a shredding main shaft 51 and a plurality of triangular shredding blades 52 arranged circumferentially on the shredding main shaft 51. A screen plate 10 is provided at the rear end of the shredding device 5 for screening the chopped wet straw before outputting it.

[0030] The embodiments of the present invention have been described in detail above with reference to the examples. However, the present invention is not limited to the above embodiments. For those skilled in the art, after learning the contents described in the present invention, several equivalent changes and substitutions can be made without departing from the principle of the present invention. These equivalent changes and substitutions should also be considered to fall within the protection scope of the present invention.

Claims

1. A wet straw crushing device, characterized in that: include: Feed trays are used to receive wet straw and guide it to gather in a designated direction; The conveyor belt, located on one side of the feed pallet, is used to transport the wet straw gathered on the feed pallet in a designated direction. as well as A material-pushing mechanism is provided above the conveyor belt, which is configured to push and spread the accumulated wet straw on the conveyor belt during the conveying process. A cutting device is located at the end of the conveyor belt, and a feeding roller is provided between the cutting device and the conveyor belt. The feeding roller is used to feed the wet straw conveyed by the conveyor belt into the cutting device, and the cutting device is configured to uniformly chop the fed wet straw. The shredding device, located on one side of the cutting device, receives the wet straw chopped by the cutting device, shreds it, and then outputs it.

2. The wet straw crushing device according to claim 1, characterized in that: The top of the feeding tray is provided with an arc-shaped groove, which is configured to receive wet straw and gather the wet straw towards the center.

3. The wet straw crushing device according to claim 2, characterized in that: The feeding mechanism includes: Several sets of levers are arranged along the conveying direction, each set of levers including a pair of levers; The drive unit is configured to drive two levers of the same set of levers to move synchronously and in opposite directions; and in the initial state, each set of levers is located at the center axis of the conveyor belt.

4. The wet straw crushing device according to claim 3, characterized in that: The driving device includes a slide groove in which a slider is slidably mounted, and a driving screw is disposed within the slide groove. Each driving screw has two sliders, and the two sliders are connected to the driving screw via screw nuts with opposite threads. Each lever includes a first rod body and a second rod body. The first rod body is connected to the slider, and the second rod body is coaxially inserted into the first rod body. The first rod body has a through groove through which an adjusting rod passes. The adjusting rod is connected to the end of the second rod body, and as the adjusting rod moves, it adjusts the second rod body to extend or retract into the first rod body. The adjusting rods on all the group levers are interconnected and controlled by a lifting adjustment mechanism, which controls the lifting and lowering movement of the adjusting rods.

5. The wet straw crushing device according to claim 4, characterized in that: The second rod body is equipped with a triangular flexible baffle at the end facing the conveyor belt. The two triangular flexible baffles of each set of baffles are provided with grooves on their opposite surfaces. The grooves are configured such that when the two triangular flexible baffles move from the center of the conveyor belt toward the edge, the triangular flexible baffles deform within the compression range of the grooves, which is defined as the first deformation. When the two triangular flexible baffles move from the edge toward the center of the conveyor belt, the triangular flexible baffles deform within the expansion range of the grooves, which is defined as the second deformation. The deformation amount of the second deformation is greater than that of the first deformation.

6. A wet straw crushing device according to any one of claims 3-5, characterized in that: Several vertical plates are spaced apart on both sides of the conveyor belt. Each vertical plate is configured to intercept wet straw at the lever when the lever moves toward the edge of the conveyor belt, allowing the lever to pass through only after it deforms.

7. A wet straw crushing device according to claim 6, characterized in that: Each of the upright plates faces the central axis of the conveyor belt and has an arc-shaped block near its bottom. The bottom of the arc-shaped block is in contact with the bottom of the upright plate, and the top of the arc-shaped block is bent toward the central axis of the conveyor belt.

8. A wet straw crushing device according to claim 6, characterized in that: A distributor is installed above the conveyor belt between the feeding mechanism and the feed tray, and the distributor is located at the central axis of the conveyor belt. The distributor is bent toward the feed tray and the thickness of the distributor toward the feed tray is less than that of the other side. The distributor is configured to divide the wet straw conveyed by the conveyor belt into two piles and guide them toward both sides of the conveyor belt.

9. A wet straw crushing device according to claim 8, characterized in that: An electric telescopic cylinder is installed on the top of the distributor. The telescopic end of the electric telescopic cylinder is connected to the distributor. The electric telescopic cylinder is used to control the distance between the distributor and the conveyor belt.

10. A wet straw crushing device according to claim 8, characterized in that: Both sides of the distributor are equipped with arc-shaped combs. One end of the arc-shaped comb is connected to the distributor, and the other end is bent toward the feeding mechanism. Several rod-shaped comb teeth are installed on the side of the arc-shaped comb facing the conveyor belt. The length of the rod-shaped comb teeth on each arc-shaped comb gradually increases from the distributor toward the far end of the arc-shaped comb. The arc-shaped comb is configured to guide the oblique wet straw back to the straight position parallel to the conveying direction through the corresponding rod-shaped comb teeth.

Images