A straw recycling and crushing machine

Abstract

This invention relates to the field of straw crushing technology, and more particularly to a straw recycling and crushing machine, comprising a base, a support fixedly mounted on the upper surface of the base, and a compression box fixedly mounted in the support. A crushing box is connected to the top of the compression box, and a feeding hopper is connected to the top of the crushing box. The outer wall of the crushing box has mounting holes, and a first rotating shaft and a second rotating shaft are rotatably connected to the mounting holes. The outer walls of both the first and second rotating shafts are fixedly provided with equidistantly distributed crushing blocks, which are staggered between adjacent crushing blocks. Crushing teeth are arranged in a ring at equal intervals on the outer side of each crushing block. This invention uses a feeding unit to move the straw downwards, making it easier for lighter straw to enter the crushing blocks for crushing. It also effectively reduces the space occupied by the crushed straw fragments, facilitating subsequent transportation and processing, resulting in better performance.

Description

Technical Field

[0001] This invention relates to the field of straw crushing technology, and in particular to a straw recycling and crushing machine. Background Technology

[0002] In agricultural production, the treatment of crop straw has always been an important issue. With the increasing environmental protection requirements and the deepening of the concept of resource reuse, the effective recycling and rational utilization of straw has become more and more urgent. At present, there is a method of using a crusher to break the straw into fragments and then making it into biomass fuel, which can effectively recycle straw.

[0003] However, existing straw recycling and crushing machinery fails to meet actual needs. During use, due to the light weight of straw and the lack of effective sorting and guidance, straw tends to accumulate above the feed inlet, which greatly affects crushing efficiency and operational continuity. In addition, the crushed straw fragments are usually loose and take up a lot of space when piled up. Therefore, it is urgent to design a straw recycling and crushing machine to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to address the deficiencies in the existing technology by proposing a straw recycling and crushing machine.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A straw recycling and crushing machine includes a base, a support fixedly mounted on the upper surface of the base, and a compression box fixedly mounted in the support. A crushing box is connected to the top of the compression box, and a feeding hopper is connected to the top of the crushing box. The outer wall of the crushing box has mounting holes, and a first rotating shaft and a second rotating shaft are rotatably connected to the mounting holes. The outer walls of both the first and second rotating shafts are fixedly provided with equidistantly distributed crushed blocks, which are staggered between adjacent crushed blocks. Crushing teeth are arranged in a ring at equal intervals on the outer side of each crushed block. A drive motor is also fixedly mounted on the support, and an output wheel is rotatably connected to the drive end of the drive motor. A driven wheel is fixedly mounted at the end of the second rotating shaft, and the driven wheel and the output wheel are connected by a transmission belt. Gears are fixedly mounted on the outer walls of both the first and second rotating shafts, and adjacent gears mesh with each other. The machine also includes:

[0007] The feeding unit is disposed in the feeding hopper and is used to push the straw in the feeding hopper between the crushed blocks;

[0008] The extrusion unit is disposed in the extrusion box and is used to extrude the crushed straw in the extrusion box.

[0009] The discharge unit is located outside the compression box and is used to push the compressed straw out of the compression box.

[0010] As a further embodiment of the present invention: the feeding unit includes a telescopic cylinder fixedly installed on the outer wall of the feeding hopper. A circular plate is fixedly installed at the telescopic end of the telescopic cylinder. A vertical rod is fixedly installed at the top of the circular plate. A movable plate is sleeved on the outer side of the vertical rod, and a lower pressure plate is fixedly installed on the lower surface of the movable plate. The lower pressure plate penetrates the feeding hopper and is located in the middle position inside the crushing box. A first spring is sleeved on the outer side of the vertical rod. One end of the first spring is connected to the lower surface of the movable plate, and the other end of the first spring is connected to the upper surface of the circular plate. A top plate is fixedly connected to the top of the vertical rod. A touch switch is also fixedly installed on the upper surface of the movable plate. A guide plate is also fixedly installed on the inner wall of the crushing box. The adjacent guide plates are V-shaped, and the lower pressure plate is located between the guide plates. A side pressure component is also provided on the outer side of the lower pressure plate for pressing the straw down laterally. A warning component is also provided on the outer side of the feeding hopper to remind the staff to perform the feeding operation in a timely manner.

[0011] As a further embodiment of the present invention: the side pressure assembly includes inclined grooves equally spaced on both sides of the outer wall of the lower pressure plate, a fixed shaft is fixedly installed in the inclined groove, and a side pressure plate is rotatably sleeved on the outside of the fixed shaft.

[0012] As a further embodiment of the present invention: the warning component includes a tray fixedly disposed on the side wall of the feeding hopper, a second touch switch is fixedly installed on the upper surface of the tray, and the second touch switch is located below the moving plate, an alarm is fixedly installed on the outer wall of the crushing box, the second touch switch is electrically connected to a controller, and the controller and the alarm are electrically connected.

[0013] As a further embodiment of the present invention: the extrusion unit includes a support rod fixedly disposed in the extrusion box, a hydraulic cylinder is fixedly installed at the end of the support rod, and an extrusion block is fixedly installed at the telescopic end of the hydraulic cylinder, the extrusion block cooperating with the inner wall of the extrusion box.

[0014] As a further embodiment of the present invention: the pushing unit includes a pushing port and a discharging port symmetrically opened on both sides of the extrusion box. A pushing plate is movably installed in the pushing port. A baffle is fixedly installed on the outer wall of the extrusion box to block the pushing plate. A side rod is fixedly installed on the outer wall of the pushing plate away from the extrusion box, and a baffle is fixedly installed at the end of the side rod. An electric telescopic rod is fixedly installed below the bracket, and a push-pull plate is fixedly installed at the telescopic end of the electric telescopic rod. The push-pull plate is sleeved on the outside of the side rod. A second spring is also sleeved on the outside of the side rod. One end of the second spring is connected to the baffle, and the other end of the second spring is connected to the push-pull plate. A sealing assembly is also provided on the outer wall of the extrusion box to seal the discharging port.

[0015] As a further embodiment of the present invention: the sealing assembly includes a rotating plate rotatably disposed on the outside of the extrusion box, and a sealing plate is fixedly installed on the outer wall of the rotating plate near the extrusion box. The sealing plate is located in the discharge port. An electric telescopic rod II is also fixedly installed on the outer wall of the extrusion box, and a sealing strip is fixedly installed on the telescopic end of the electric telescopic rod II, and the sealing strip is in contact with the outer wall of the rotating plate.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] This invention provides a straw recycling and crushing machine. The straw to be crushed can be directly fed into a feeding hopper, where it enters a crushing chamber. A drive motor rotates an output wheel, which, via a transmission belt, causes a driven wheel to rotate, thus rotating a second shaft. Because the gears on the outer sides of the first and second shafts mesh with each other, both shafts rotate together. The crushing blocks on the outer sides of the first and second shafts effectively crush the straw. During the crushing process, a feeding unit can also move the straw downwards, making lighter straw easier to crush. The crusher facilitates the crushing process by allowing straw to easily enter between the crushing blocks. The crushed straw falls into the compression chamber, where the compression unit compresses the straw at the bottom, forming it into blocks. This effectively reduces the space occupied by the straw fragments. Once the straw fragments are compressed, they can be ejected from the compression chamber via the discharge unit. This convenient crusher allows straw to be quickly fed between the crushing blocks, significantly improving crushing efficiency. It also reduces the space occupied by the crushed straw fragments, making subsequent transportation and processing easier and resulting in better performance. Attached Figure Description

[0018] Figure 1 This is a first-view structural schematic diagram of a straw recycling and crushing machine provided in an embodiment of the present invention;

[0019] Figure 2This is a half-sectional structural diagram of a straw recycling and crushing machine provided in an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the feeding hopper in a straw recycling and crushing machine provided in an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the structure of crushed blocks in a straw recycling and crushing machine provided in an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the structure of the lower pressure plate in a straw recycling and crushing machine provided in an embodiment of the present invention;

[0023] Figure 6 This is a second-view structural schematic diagram of a straw recycling and crushing machine provided in an embodiment of the present invention;

[0024] Figure 7 This is a schematic diagram of the structure of the extrusion box in a straw recycling and crushing machine provided in an embodiment of the present invention;

[0025] Figure 8 for Figure 7 Enlarged structural diagram at point A in the diagram;

[0026] Figure 9 This is a schematic diagram of a half-section of the extrusion box in a straw recycling and crushing machine according to an embodiment of the present invention;

[0027] Figure 10 This is a third-view structural diagram of a straw recycling and crushing machine provided in an embodiment of the present invention.

[0028] In the diagram: 101-Base, 102-Bracket, 103-Extrusion Box, 104-Crushing Box, 105-Feeding Hopper, 106-Drive Motor, 107-Output Wheel, 108-Transmission Belt, 109-First Rotating Shaft, 110-Second Rotating Shaft, 111-Driven Wheel, 112-Gear, 113-Crushed Piece, 201-Telescopic Cylinder, 202-Circular Plate, 203-Upright Post, 204-Top Plate, 205-First Spring, 206-Moving Plate, 207-Touch Switch 1, 208-Lower Pressure Plate, 209-Guide Plate 301- Inclined groove, 302- Fixed shaft, 303- Side pressure plate, 401- Support plate, 402- Second touch switch, 403- Alarm, 501- Support rod, 502- Hydraulic cylinder, 503- Extrusion block, 601- Pushing port, 602- Discharge port, 603- Pushing plate, 604- Baffle frame, 605- Side rod, 606- Baffle plate, 607- Second spring, 608- Electric telescopic rod, 609- Push-pull plate, 701- Rotating plate, 702- Sealing plate, 703- Electric telescopic rod, 704- Sealing strip. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0030] like Figures 1-10 As shown, an embodiment of the present invention provides a straw recycling and crushing machine, including a base 101. A support 102 is fixedly mounted on the upper surface of the base 101, and a compression box 103 is fixedly installed in the support 102. A crushing box 104 is connected to the top of the compression box 103, and a feeding hopper 105 is connected to the top of the crushing box 104. The outer wall of the crushing box 104 has a mounting hole, and a first rotating shaft 109 and a second rotating shaft 110 are rotatably connected in the mounting hole. The outer walls of the first rotating shaft 109 and the second rotating shaft 110 are fixedly provided with equidistantly distributed crushed blocks 113, which are staggered between adjacent crushed blocks 113. Crushing teeth are provided on the outer side of the crushed blocks 113 in a ring at equal intervals. A drive motor 106 is also fixedly mounted on the support 102. The drive motor 106 is rotatably connected to an output wheel 107, and a driven wheel 111 is fixedly installed at the end of the second shaft 110. The driven wheel 111 and the output wheel 107 are connected by a transmission belt 108. Gears 112 are fixedly installed on the outer walls of the first shaft 109 and the second shaft 110, and adjacent gears 112 mesh with each other. The system also includes: a feeding unit, which is installed in a feeding hopper 105 and is used to push the straw in the feeding hopper 105 to the crushed blocks 113; a pressing unit, which is installed in a pressing box 103 and is used to press the crushed straw in the pressing box 103; and a discharging unit, which is installed outside the pressing box 103 and is used to push the compressed straw out of the pressing box 103.

[0031] The straw that needs to be crushed can be directly fed into the feeding hopper 105. The straw will enter the crushing box 104 through the feeding hopper 105. The drive motor 106 can drive the output wheel 107 to rotate. The output wheel 107 drives the driven wheel 111 to rotate through the transmission belt 108, which in turn causes the second rotating shaft 110 to rotate. Since the gears 112 on the outside of the first rotating shaft 109 and the second rotating shaft 110 are meshed with each other, the first rotating shaft 109 and the second rotating shaft 110 can rotate together. With the help of the crushing blocks 113 on the outside of the first rotating shaft 109 and the second rotating shaft 110, the straw crushing operation can be achieved. During the crushing process, the straw can also be moved downward by the feeding unit, so that... Lighter straw is more easily fed into the crushing blocks 113 for crushing. The crushed straw falls into the compression box 103, where the compression unit compresses the straw at the bottom, forming it into blocks. This effectively reduces the space occupied by the straw fragments. Once the straw fragments are compressed, they can be pushed out of the compression box 103 by the discharge unit. This machine is very convenient to use. It allows straw to be quickly fed into the crushing blocks 113 for crushing, effectively improving crushing efficiency. It also reduces the space occupied by the crushed straw fragments, making it easier for subsequent transportation and processing, resulting in better performance.

[0032] As one embodiment of the present invention, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 5The feeding unit includes a telescopic cylinder 201 fixedly mounted on the outer wall of the feeding hopper 105. A circular plate 202 is fixedly installed at the telescopic end of the telescopic cylinder 201. A vertical rod 203 is fixedly installed at the top of the circular plate 202. A movable plate 206 is sleeved on the outer side of the vertical rod 203. A lower pressure plate 208 is fixedly installed on the lower surface of the movable plate 206. The lower pressure plate 208 penetrates the feeding hopper 105 and is located in the middle position inside the crushing box 104. A first spring 205 is sleeved on the outer side of the vertical rod 203. One end of the first spring 205 is connected to the lower surface of the movable plate 206. Furthermore, the other end of the first spring 205 is connected to the upper surface of the circular plate 202, a top plate 204 is fixedly connected to the top of the upright 203, a touch switch 207 is fixedly installed on the upper surface of the moving plate 206, a guide plate 209 is fixedly installed on the inner wall of the crushing box 104, the adjacent guide plates 209 are V-shaped, and the lower pressure plate 208 is located between the guide plates 209. Under the action of the guide plates 209, the straw can enter the crushing blocks 113 more easily. A side pressure component is also provided on the outer side of the lower pressure plate 208 for pressing the straw from the side downwards. The outer side of the feeding hopper 105 is also... A warning component is provided to remind workers to add material in a timely manner. After the straw is put into the feeding hopper 105, the telescopic cylinder 201 drives the circular plate 202 to move up and down. As the circular plate 202 moves downward, the first spring 205 above the circular plate 202 pulls the moving plate 206 downward, which in turn drives the lower pressure plate 208 downward. The bottom end of the lower pressure plate 208 can then press the straw down between the crushing blocks 113, allowing the crushing blocks 113 to quickly crush the straw. This feeding unit can process the straw by realizing the cyclical reciprocating motion of the lower pressure plate 208. Lighter straw is quickly fed into the crushing blocks 113 for crushing, effectively improving crushing efficiency. Furthermore, during the process of pressing down the straw, the lower pressure plate 208 also causes the first spring 205 to be stretched until the touch switch 207 above the moving plate 206 contacts the lower surface of the top plate 204. This causes the telescopic cylinder 201 to drive the circular plate 202 to move upward, ensuring that the lower pressure plate 208 applies moderate pressure to the straw, allowing only a suitable amount of straw to enter the crushing blocks 113. This effectively avoids jamming caused by excessive pressure, resulting in better performance.

[0033] As one embodiment of the present invention, please refer to Figure 5The side-pressing component includes inclined grooves 301 equally spaced on both sides of the outer wall of the lower pressing plate 208. A fixed shaft 302 is fixedly installed in the inclined groove 301. A side pressing plate 303 is rotatably sleeved on the outside of the fixed shaft 302. When the lower pressing plate 208 moves downward, the side pressing plate 303 in the inclined groove 301 will come into contact with the straw and cause the side pressing plate 303 to unfold to both sides, which can more effectively press down the straw. When the lower pressing plate 208 moves upward, the side pressing plate 303 will automatically retract into the inclined groove 301, without affecting the upward movement of the lower pressing plate 208.

[0034] As one embodiment of the present invention, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 5 The warning component includes a support plate 401 fixedly installed on the side wall of the feeding hopper 105. A second touch switch 402 is fixedly installed on the upper surface of the support plate 401, and the second touch switch 402 is located below the moving plate 206. An alarm 403 is fixedly installed on the outer wall of the crushing box 104. The second touch switch 402 is electrically connected to a controller, and the controller and the alarm 403 are electrically connected. When the moving plate 206 moves down and contacts the second touch switch 402 above the support plate 401, it indicates that there is not much straw left to be crushed in the feeding hopper 105. At this time, the triggered second touch switch 402 can control the alarm 403 through the controller to sound an alarm, reminding the staff to perform the feeding operation in time. Furthermore, the support plate 401 can also prevent the moving plate 206 from moving down continuously, so as to avoid the end of the pressure plate 208 from entering between the crushed blocks 113 and causing damage, thus improving the effect.

[0035] As one embodiment of the present invention, please refer to Figure 2 and Figure 9 The extrusion unit includes a support rod 501 fixedly installed in the extrusion box 103. A hydraulic cylinder 502 is fixedly installed at the end of the support rod 501, and an extrusion block 503 is fixedly installed at the telescopic end of the hydraulic cylinder 502. The extrusion block 503 cooperates with the inner wall of the extrusion box 103. When the hydraulic cylinder 502 drives the extrusion block 503 to move upward, the straw fragments in the extrusion box 103 will fall to the bottom of the extrusion box 103 through the gap between the extrusion box 103 and the extrusion block 503. When the hydraulic cylinder 502 drives the extrusion block 503 to move downward, the straw fragments at the bottom of the extrusion box 103 can be extruded, which is very convenient to use.

[0036] As one embodiment of the present invention, please refer to Figure 2 , Figure 7 , Figure 8 and Figure 9The feeding unit includes a feeding port 601 and a discharge port 602 symmetrically arranged on both sides of the extrusion box 103. A feeding plate 603 is movably installed in the feeding port 601. A baffle 604 is fixedly installed on the outer wall of the extrusion box 103 to block the feeding plate 603. A side rod 605 is fixedly installed on the outer wall of the feeding plate 603 away from the extrusion box 103, and a baffle 606 is fixedly installed at the end of the side rod 605. An electric telescopic rod 608 is fixedly installed below the bracket 102, and a push-pull plate 609 is fixedly installed at the telescopic end of the electric telescopic rod 608. The push-pull plate 609 is sleeved on the outside of the side rod 605. A second spring 607 is also sleeved on the outside of the side rod 605. One end of the second spring 607 is connected to the baffle 606, and the other end of the second spring 607 is connected to the push-pull plate 609. A sealing assembly is also provided on the outer wall of the extrusion box 103 to seal the discharge port 602. 02. After the straw fragments at the bottom of the compression box 103 are compressed, the sealing component can be released from the discharge port 602. Then, the push-pull plate 609 can be moved by the electric telescopic rod 608 until it contacts the push plate 603. The push-pull plate 609 can then push the push plate 603 to move, causing the push plate 603 to push the straw fragments out of the discharge port 602. After the straw fragments are pushed out, the push-pull plate 609 can be moved back by the retraction of the electric telescopic rod 608 until the push plate 603 re-enters the push port 601. As the push-pull plate 609 moves further, the second spring 607 can be compressed. At this time, the push plate 603 will be in a state of contact with the baffle 604, ensuring that the push plate 603 is fully inserted into the push port 601 and will not obstruct the downward movement of the subsequent compression block 503, resulting in better performance.

[0037] As one embodiment of the present invention, please refer to Figure 2 , Figure 7 , Figure 8 and Figure 9 The sealing assembly includes a rotating plate 701 rotatably mounted on the outside of the extrusion box 103, and a sealing plate 702 fixedly installed on the outer wall of the rotating plate 701 near the extrusion box 103. The sealing plate 702 is located in the discharge port 602. An electric telescopic rod 703 is also fixedly installed on the outer wall of the extrusion box 103, and a sealing strip 704 is fixedly installed on the telescopic end of the electric telescopic rod 703. The sealing strip 704 is in contact with the outer wall of the rotating plate 701, and the sealing can be driven by the electric telescopic rod 703. When strip 704 moves downward, it makes the sealing strip 704 fit against the rotating plate 701, so that the sealing plate 702 on one side of the rotating plate 701 can block the discharge port 602, thus blocking the discharge port 602. When discharge is needed, the sealing strip 704 can be moved upward by the electric telescopic rod 703, which can release the restriction on the rotating plate 701. When the straw fragments move toward the discharge port 602, the rotating plate 701 can be automatically lifted to realize the discharge of the straw fragments, which is very convenient to use.

[0038] In use, the straw to be crushed can be directly fed into the feeding hopper 105. The straw will enter the crushing box 104 through the feeding hopper 105. The drive motor 106 drives the output wheel 107 to rotate. The output wheel 107 drives the driven wheel 111 to rotate through the transmission belt 108, which in turn causes the second rotating shaft 110 to rotate. Since the gears 112 on the outside of the first rotating shaft 109 and the second rotating shaft 110 are meshed with each other, the first rotating shaft 109 and the second rotating shaft 110 can rotate together. The crushing operation of the straw can be achieved by the crushing blocks 113 on the outside of the first rotating shaft 109 and the second rotating shaft 110. During the crushing process, the straw can also be moved downward by the feeding unit. This allows lighter straw to more easily enter the crushing blocks 113 for crushing. The crushed straw falls into the compression box 103, where the compression unit compresses the straw at the bottom, forming it into blocks. This effectively reduces the space occupied by the straw fragments. Once the straw fragments are compressed, they can be pushed out of the compression box 103 by the discharge unit. It is very convenient to use. This crusher allows straw to be quickly fed into the crushing blocks 113 for crushing, effectively improving crushing efficiency. At the same time, it effectively reduces the space occupied by the crushed straw fragments, making it easier for subsequent transportation and processing, resulting in better performance.

[0039] It should be noted that although this specification describes the embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A straw recycling and crushing machine, comprising a base, characterized in that, A bracket is fixedly mounted on the upper surface of the base, and a compression box is fixedly installed in the bracket. A crushing box is connected to the top of the compression box, and a feeding hopper is connected to the top of the crushing box. The outer wall of the crushing box has mounting holes, and a first rotating shaft and a second rotating shaft are rotatably connected to the mounting holes. The outer walls of both the first and second rotating shafts are fixedly provided with equally spaced crushed blocks, which are staggered between adjacent crushed blocks. The outer side of each crushed block has equally spaced, ring-shaped crushing teeth. A drive motor is also fixedly mounted on the bracket, and the drive end of the drive motor is rotatably connected to... The system includes an output wheel, a driven wheel fixedly mounted at the end of the second shaft, and a drive belt connecting the driven wheel and the output wheel. Gears are fixedly mounted on the outer walls of both the first and second shafts, with adjacent gears meshing. The system also includes: a feeding unit located in a feeding hopper for pushing straw from the hopper into the crushed blocks; a pressing unit located in a pressing chamber for pressing the crushed straw within the pressing chamber; and a discharging unit located outside the pressing chamber for discharging the pressed straw out of the pressing chamber. The feeding unit includes a telescopic cylinder fixedly installed on the outer wall of the feeding hopper. A circular plate is fixedly installed at the telescopic end of the telescopic cylinder. A vertical rod is fixedly installed at the top of the circular plate. A movable plate is sleeved on the outer side of the vertical rod, and a lower pressure plate is fixedly installed on the lower surface of the movable plate. The lower pressure plate passes through the feeding hopper and is located in the middle position inside the crushing box. A first spring is sleeved on the outer side of the vertical rod. One end of the first spring is connected to the lower surface of the movable plate, and the other end of the first spring is connected to the upper surface of the circular plate. A top plate is fixedly connected to the top of the vertical rod. A touch switch is also fixedly installed on the upper surface of the movable plate. A guide plate is also fixedly installed on the inner wall of the crushing box. The adjacent guide plates are V-shaped, and the lower pressure plate is located between the guide plates. A side pressure component is also provided on the outer side of the lower pressure plate for pressing the straw down laterally. A warning component is also provided on the outer side of the feeding hopper to remind the staff to perform the feeding operation in a timely manner. The side pressure assembly includes inclined grooves equally spaced on both sides of the outer wall of the lower pressure plate, a fixed shaft is fixedly installed in the inclined groove, and a side pressure plate is rotatably sleeved on the outside of the fixed shaft; The warning component includes a tray fixedly installed on the side wall of the feeding hopper. A second touch switch is fixedly installed on the upper surface of the tray and is located below the moving plate. An alarm is fixedly installed on the outer wall of the crushing box. The second touch switch is electrically connected to a controller, and the controller and the alarm are electrically connected.

2. The straw recycling and crushing machine according to claim 1, characterized in that, The extrusion unit includes a support rod fixedly installed in the extrusion box. A hydraulic cylinder is fixedly installed at the end of the support rod, and an extrusion block is fixedly installed at the telescopic end of the hydraulic cylinder. The extrusion block cooperates with the inner wall of the extrusion box.

3. The straw recycling and crushing machine according to claim 2, characterized in that, The discharge unit includes a pusher port and a discharge port symmetrically located on both sides of the extrusion box. A pusher plate is movably installed in the pusher port. A baffle frame is fixedly installed on the outer wall of the extrusion box to block the pusher plate. A side rod is fixedly installed on the outer wall of the pusher plate away from the extrusion box, and a baffle plate is fixedly installed at the end of the side rod. An electric telescopic rod is fixedly installed below the bracket, and a push-pull plate is fixedly installed at the telescopic end of the electric telescopic rod. The push-pull plate is sleeved on the outside of the side rod. A second spring is also sleeved on the outside of the side rod. One end of the second spring is connected to the baffle plate, and the other end of the second spring is connected to the push-pull plate. A sealing assembly is also provided on the outer wall of the extrusion box to seal the discharge port.

4. A straw recycling and crushing machine according to claim 3, characterized in that, The sealing assembly includes a rotating plate rotatably disposed on the outside of the extrusion box, and a sealing plate is fixedly installed on the outer wall of the rotating plate near the extrusion box. The sealing plate is located in the discharge port. An electric telescopic rod II is also fixedly installed on the outer wall of the extrusion box, and a sealing strip is fixedly installed on the telescopic end of the electric telescopic rod II, and the sealing strip is in contact with the outer wall of the rotating plate.

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