Aluminum profile dustless cutting device

Abstract

The utility model provides a kind of aluminium profile dustless cutting device, it is related to aluminium profile processing field, and it includes: machine body shell, the inner wall of machine body shell is fixedly connected with processing table, the inner wall top of machine body shell is fixedly connected with cutting mechanism, cutting mechanism is located above processing table, material receiving net, exhaust fan and filter plate, wherein, material receiving net is fixedly arranged in the inner wall of machine body shell, material receiving net is arranged side by side with processing table, and one side of material receiving net is fixedly connected with one side of processing table;The scheme, by machine body shell, create a more closed processing environment, start cutting mechanism to cut the aluminium profile placed on processing table, start exhaust fan to make the air with dust during cutting first through material receiving net, then through filter plate certain filtration treatment, finally discharge through exhaust fan, so that the dust generated during cutting can be avoided as far as possible to spread in the air around, and then can bring certain security guarantee to the surrounding personnel.

Description

Technical Field

[0001] This utility model relates to the field of aluminum profile processing, and in particular to a dust-free cutting device for aluminum profiles. Background Technology

[0002] Aluminum profiles are produced by processing aluminum alloy raw materials into profile products with specific cross-sectional shapes through processes such as extrusion, rolling, and stretching. They possess core advantages such as lightweight, high strength, corrosion resistance, ease of processing, and recyclability. During the processing of aluminum profiles, cutting devices are typically used to cut them to the designed dimensions to facilitate subsequent assembly and welding processes.

[0003] In related technologies, the processing of aluminum profiles mainly relies on cutting devices. Common cutting devices include saw blade cutting, laser cutting, and water jet cutting. Among them, saw blade cutting is mainly done with circular saws, which have low equipment costs and high efficiency, and are suitable for large-volume cutting of conventional sizes. However, since a large amount of debris and dust are generated during the saw blade cutting process, workers usually need to wear masks and use air guns to clean the workbench to ensure the cleanliness of the processing table.

[0004] However, the dust generated during cutting may spread into the surrounding air, potentially posing a safety hazard to people in the vicinity.

[0005] Therefore, it is necessary to provide a dust-free cutting device for aluminum profiles to solve the above problems. Utility Model Content

[0006] To address the technical problem that dust generated during cutting may diffuse into the surrounding air, posing a safety hazard to people in the vicinity, this utility model provides a dust-free cutting device for aluminum profiles.

[0007] This utility model provides a dust-free cutting device for aluminum profiles, comprising: a machine body shell, a processing table fixedly connected to the inner wall of the machine body shell, a cutting mechanism fixedly connected to the top of the inner wall of the machine body shell, the cutting mechanism being located above the processing table, a receiving screen, an exhaust fan, and a filter plate. The receiving screen is fixedly disposed on the inner wall of the machine body shell, arranged side-by-side with the processing table, one side of the receiving screen being fixedly connected to one side of the processing table. The exhaust fan is fixedly disposed at the bottom of the inner wall of the machine body shell, its output end penetrating the machine body shell. The filter plate is fixedly disposed between the lower surface of the processing table and the inner wall of the machine body shell, located between the receiving screen and the exhaust fan. A first hydraulic cylinder is fixedly disposed on one side of the inner wall of the machine body shell, located above the processing table, its output end being fixedly connected to a clamping assembly, and a blower fixedly connected to the top of the inner wall of the clamping assembly.

[0008] Preferably, the outer casing of the machine body includes a mounting shell, the outer wall of the processing table and the receiving mesh are fixedly connected to the inner wall of the mounting shell, a protective cover is provided on the upper surface of the mounting shell, the upper end face of the cutting mechanism is fixedly connected to the top of the inner wall of the protective cover, one end of the first hydraulic cylinder is fixedly connected to one side of the inner wall of the protective cover, an inspection door is movably connected to one side of the protective cover, and a feed port is provided on one side of the protective cover, the feed port being located below the first hydraulic cylinder.

[0009] Preferably, the clamping assembly includes a double-headed hydraulic cylinder, the output end of the first hydraulic cylinder is fixedly connected to one side of the double-headed hydraulic cylinder, the upper surface of the blower is fixedly connected to the lower surface of the double-headed hydraulic cylinder, both output ends of the double-headed hydraulic cylinder are fixedly connected to connecting plates, and the lower surface of the connecting plates is fixedly connected to clamping plates.

[0010] Preferably, the protective cover has a material receiving port on the side away from the feed inlet, the material receiving port is located above the receiving mesh, and a baffle is hinged to one side of the inner wall of the protective cover, the baffle is located on the side of the material receiving port.

[0011] Preferably, the processing table includes a rectangular plate, the outer wall of which is fixedly connected to the inner wall of the mounting shell, one side of which is fixedly connected to one side of the receiving mesh, the side of the rectangular plate near the receiving mesh being an inclined surface, and a cutting opening provided on the rectangular plate, the cutting opening being located below the cutting mechanism.

[0012] Preferably, a cleaning port is provided on one side of the mounting shell, the cleaning port is located below the material inlet, and a protective door located inside the cleaning port is movably connected to one side of the mounting shell.

[0013] Preferably, the cutting mechanism includes a second hydraulic cylinder, the upper end face of which is fixedly connected to the top of the inner wall of the protective cover, a motor is fixedly connected to the output end of the second hydraulic cylinder, and a cutting blade is fixedly connected to the output end of the motor, the cutting blade being located above the cutting opening.

[0014] Compared with related technologies, the dust-free cutting device for aluminum profiles provided by this utility model has the following beneficial effects: 1. This dust-free aluminum profile cutting device prevents dust from spreading into the surrounding air: The enclosed casing creates a relatively sealed processing environment, while also restricting the installation positions of the processing table, cutting mechanism, receiving screen, exhaust fan, and filter plate. The processing table holds the aluminum profiles to be cut. Activating the cutting mechanism cuts the profiles on the processing table. The receiving screen collects the cut profiles. Activating the exhaust fan ensures that the air carrying dust during cutting first passes through the receiving screen, then undergoes filtration through the filter plate, and finally is exhausted by the exhaust fan, thus minimizing dust dispersion. The dust generated during cutting diffuses into the surrounding air, thus providing a certain degree of safety for people in the vicinity. A clamping assembly is installed on one side of the inner wall of the machine body via a first hydraulic cylinder. Activating the first hydraulic cylinder can control the reciprocating movement of the clamping assembly. Adjusting the clamping assembly can clamp the aluminum profile. By cooperating with the first hydraulic cylinder and the clamping assembly, the aluminum profile can be fed. When the aluminum profile is being fed, the end of the aluminum profile can push the cut aluminum profile to the receiving net for storage. When the blower is activated, it can blow the debris generated during cutting on the processing table toward the receiving net. The debris passes through the receiving net and can be collected on one side of the filter plate below the receiving net. 2. This dust-free aluminum profile cutting device features an installation shell that restricts the installation position of the protective cover, which covers the processing space above the processing table. The inspection door can be opened and closed as needed, facilitating personnel to inspect the inside of the protective cover. The feed inlet allows for easy placement and processing of aluminum profiles. Activating the double-headed hydraulic cylinder, through the connecting plates at both output ends, moves the clamping plate to clamp the aluminum profile. The material removal port allows personnel to easily retrieve aluminum profiles from the material feeding mesh. The baffle provides some protection to the feed inlet to prevent dust-laden air from leaking out of the protective cover. After opening the protective door, personnel can clean the waste material collected inside the installation shell through the cleaning port. 3. This dust-free aluminum profile cutting device has a rectangular plate for placing aluminum profiles to be cut. The inclined surface allows the cut aluminum profiles to slide onto the receiving mesh. During cutting, the bottom of the cutting mechanism can pass through the aluminum profile and be located inside the cutting opening, thereby improving the cutting effect. At the same time, the cutting opening also allows some cutting debris to fall onto the side of the filter plate for collection. Starting the motor drives the cutting blade to rotate, and starting the second hydraulic cylinder drives the cutting blade to move down through the motor to cut the aluminum profile. Attached Figure Description

[0015] Figure 1 A schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional structural schematic diagram provided for this utility model; Figure 3 A schematic diagram of the mounting shell structure provided by this utility model; Figure 4 A schematic diagram of the clamping component structure provided by this utility model.

[0016] Numbered in the diagram: 1. Machine casing; 101. Mounting shell; 102. Protective cover; 103. Inspection door; 104. Feed inlet; 2. Processing table; 201. Rectangular plate; 202. Inclined surface; 203. Cutting edge; 3. Cutting mechanism; 301. Second hydraulic cylinder; 302. Motor; 303. Cutting blade; 4. Receiving screen; 5. Exhaust fan; 6. Filter plate; 7. First hydraulic cylinder; 8. Clamping assembly; 801. Double-headed hydraulic cylinder; 802. Connecting plate; 803. Clamping plate; 9. Blower; 10. Material unloading port; 11. Baffle; 12. Cleaning port; 13. Protective door. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Please refer to the following: Figures 1 to 4A dust-free cutting device for aluminum profiles includes: a machine body shell 1, a processing table 2 fixedly connected to the inner wall of the machine body shell 1, a cutting mechanism 3 fixedly connected to the top of the inner wall of the machine body shell 1, the cutting mechanism 3 being located above the processing table 2, a receiving screen 4, an exhaust fan 5, and a filter plate 6. The receiving screen 4 is fixedly installed on the inner wall of the machine body shell 1, arranged side-by-side with the processing table 2, with one side of the receiving screen 4 fixedly connected to one side of the processing table 2. The exhaust fan 5 is fixedly installed at the bottom of the inner wall of the machine body shell 1, with its output end penetrating through the machine body shell 1. The filter plate 6 is fixedly installed between the lower surface of the processing table 2 and the inner wall of the machine body shell 1, located between the receiving screen 4 and the exhaust fan 5. A first hydraulic cylinder 7 is fixedly installed on one side of the inner wall of the machine body shell 1, located above the processing table 2, with a clamping assembly 8 fixedly connected to its output end. A blower 9 is fixedly connected to the top of the inner wall of the clamping assembly 8.

[0019] In the specific implementation process, the outer casing 1 of the aluminum profile dust-free cutting device provides a stable installation foundation for other components of the entire cutting device, while also creating a relatively enclosed processing environment. A horizontally positioned processing table 2 is fixedly connected to the inner wall of the outer casing 1, on which the aluminum profile to be cut is placed. A cutting mechanism 3 is fixedly connected to the top of the inner wall of the outer casing 1, corresponding to the position above the processing table 2. Activating the cutting mechanism 3 cuts the aluminum profile placed on the processing table 2. Furthermore, a receiving mesh 4 is fixedly installed on the inner wall of the outer casing 1, arranged parallel to the processing table 2. The cut aluminum profile can be moved onto the receiving mesh 4 for receiving. An exhaust fan 5 and a filter plate 6 are installed on the inner wall of the outer casing 1 and below the processing table 2. Activating the exhaust fan 5 allows the dust-laden air generated during cutting to first pass through the receiving mesh 4, then through the filter plate 6 for filtration, and finally be discharged through the exhaust fan 5. This minimizes the diffusion of dust generated during cutting into the surrounding air. This provides a certain level of safety for those around the machine. Furthermore, a clamping assembly 8 is installed on one side of the inner wall of the outer casing 1 via a first hydraulic cylinder 7. Activating the first hydraulic cylinder 7 controls the reciprocating movement of the clamping assembly 8. After the aluminum profile is placed, the clamping assembly 8 can be adjusted to hold it. Then, activating the first hydraulic cylinder 7 moves the aluminum profile via the clamping assembly 8 for feeding. During cutting, the clamping assembly 8 also prevents displacement of the aluminum profile. After completing a section of cutting, the clamping assembly 8 is released, and the machine begins... After the first hydraulic cylinder 7 adjusts the clamping assembly 8 to reset, the clamping of the clamping assembly 8 can be adjusted to cooperate with the first hydraulic cylinder 7 to feed again. When conveying aluminum profiles, the ends of the aluminum profiles can push the cut aluminum profiles to the receiving mesh 4 for storage. A blower 9 is installed on the top of the inner wall of the clamping assembly 8, and the blower 9 is set at an angle. When the blower 9 is started, it can blow the debris generated by cutting on the processing table 2 to the receiving mesh 4. The debris passes through the receiving mesh 4 and can be collected on one side of the filter plate 6 below the receiving mesh 4. Specifically, the exhaust fan 5, the first hydraulic cylinder 7, and the blower 9 are components with relatively mature existing technology. The specific models can be selected according to actual needs. The power supply can be a built-in power supply or a mains power supply. The specific power supply method will be selected according to the situation. In addition, the first hydraulic cylinder 7 also needs to cooperate with a power source such as a gear pump or a piston pump to provide driving force. It also needs to cooperate with a pressure valve, flow valve, controller, and other control structures to achieve elongation and shortening control.

[0020] See Figure 1 , Figure 2 and Figure 3As shown, the outer casing 1 of the machine body includes a mounting shell 101. The outer wall of the processing table 2 and the receiving mesh 4 are fixedly connected to the inner wall of the mounting shell 101. A protective cover 102 is provided on the upper surface of the mounting shell 101. The upper end face of the cutting mechanism 3 is fixedly connected to the top of the inner wall of the protective cover 102. One end of the first hydraulic cylinder 7 is fixedly connected to one side of the inner wall of the protective cover 102. An inspection door 103 is movably connected to one side of the protective cover 102. A feed inlet 104 is provided on one side of the protective cover 102. The feed inlet 104 is located below the first hydraulic cylinder 7.

[0021] In the specific implementation process, the installation position of the processing table 2, the receiving net 4 and the protective cover 102 can be restricted by the installation shell 101. The protective cover 102 can cover the processing space above the processing table 2, thereby preventing dust from spreading. The inspection door 103 can be opened and closed as needed to facilitate personnel to inspect the inside of the protective cover 102. The feed inlet 104 makes it easy for personnel to place aluminum profiles on the processing table 2. At the same time, the feed inlet 104 also allows external air to enter, so as to ensure the use of the blower 9 and the exhaust fan 5. Specifically, a sealing gasket is provided between the closed part of the inspection door 103 and the protective cover 102, which can improve the sealing performance when the inspection door 103 is closed. In addition, a safety lock is provided on the inspection door 103 to restrict the opening and closing of the inspection door 103.

[0022] See Figure 2 and Figure 4 As shown, the clamping assembly 8 includes a double-headed hydraulic cylinder 801. The output end of the first hydraulic cylinder 7 is fixedly connected to one side of the double-headed hydraulic cylinder 801. The upper surface of the blower 9 is fixedly connected to the lower surface of the double-headed hydraulic cylinder 801. Both output ends of the double-headed hydraulic cylinder 801 are fixedly connected to a connecting plate 802. The lower surface of the connecting plate 802 is fixedly connected to a clamping plate 803.

[0023] In the specific implementation process, starting the double-headed hydraulic cylinder 801 can synchronously adjust the connecting plates 802 at both output ends to move. The movement of the connecting plates 802 can drive the clamping plate 803 to move and clamp the aluminum profile. Specifically, it should be noted that the double-headed hydraulic cylinder 801 is a relatively mature device in existing technology. The specific model can be selected according to actual needs. The double-headed hydraulic cylinder 801 also needs to cooperate with power sources such as gear pumps or piston pumps to provide driving force. It needs to cooperate with control structures such as pressure valves, flow valves, and controllers to achieve elongation and shortening control. The clamping plate 803 is equipped with anti-slip pads on the side near the aluminum profile, which can improve the stability between the clamping plate 803 and the aluminum profile during clamping.

[0024] See Figure 1 and Figure 2As shown, a material take-up port 10 is provided on the side of the protective cover 102 away from the feed inlet 104. The material take-up port 10 is located above the receiving mesh 4. A baffle 11 is hinged to one side of the inner wall of the protective cover 102. The baffle 11 is located on the side of the material take-up port 10.

[0025] In the specific implementation process, the material inlet 10 makes it easy for personnel to pick up the aluminum profiles on the material mesh 4. The top of the baffle 11 is hinged to the protective cover 102. The baffle 11 can provide a certain shielding effect on the inlet 104 to prevent the air containing dust inside the protective cover 102 from leaking out. Specifically, it should be noted that: in order to improve the sealing performance when the baffle 11 is closed, a sealing gasket can be provided at the contact part between the baffle 11 and the protective cover 102 after the baffle 11 is closed, as needed. Furthermore, a magnetic absorbing sheet can be provided at the contact part between the baffle 11 and the protective cover 102 after the baffle 11 is closed to improve the closing stability of the baffle 11.

[0026] See Figure 2 and Figure 3 As shown, the processing table 2 includes a rectangular plate 201. The outer wall of the rectangular plate 201 is fixedly connected to the inner wall of the mounting shell 101. One side of the rectangular plate 201 is fixedly connected to one side of the receiving mesh 4. The side of the rectangular plate 201 near the receiving mesh 4 is an inclined surface 202. A cutting opening 203 is provided on the rectangular plate 201. The cutting opening 203 is located below the cutting mechanism 3.

[0027] In the specific implementation process, the rectangular plate 201 is used to place the aluminum profile that needs to be cut. The inclined surface 202 is located above the receiving net 4. The inclined surface 202 allows the aluminum profile cut from the rectangular plate 201 to slide onto the receiving net 4. When the cutting mechanism 3 cuts, the bottom can pass through the aluminum profile and be located in the cutting opening 203, thereby improving the cutting effect of the aluminum profile. The cutting opening 203 is located on the side of the filter plate 6 away from the exhaust fan 5, so that some cutting debris can fall through the cutting opening 203 to the side of the filter plate 6 for collection.

[0028] See Figure 1 , Figure 2 and Figure 3 As shown, a cleaning port 12 is provided on one side of the mounting shell 101. The cleaning port 12 is located below the material inlet 10. A protective door 13 located inside the cleaning port 12 is movably connected to one side of the mounting shell 101.

[0029] In the specific implementation process, the protective door 13 can be opened and closed as needed. After the protective door 13 is opened, personnel can clean the waste collected inside the installation shell 101 through the cleaning port 12. Specifically, a sealing gasket is provided between the protective door 13 and the closing part of the mounting shell 101, which can improve the sealing performance when the protective door 13 is closed. In addition, a safety lock is provided on the protective door 13 to restrict the opening and closing of the protective door 13.

[0030] See Figure 2 As shown, the cutting mechanism 3 includes a second hydraulic cylinder 301. The upper end face of the second hydraulic cylinder 301 is fixedly connected to the top of the inner wall of the protective cover 102. The output end of the second hydraulic cylinder 301 is fixedly connected to a motor 302. The output end of the motor 302 is fixedly connected to a cutting blade 303. The cutting blade 303 is located above the cutting opening 203.

[0031] In the specific implementation process, starting the second hydraulic cylinder 301 can drive the cutting blade 303 to move up and down through the motor 302. Starting the motor 302 can drive the cutting blade 303 to rotate. When the rotating cutting blade 303 moves down, it can cut the aluminum profile. Specifically, the second hydraulic cylinder 301 can be the same type of equipment as the first hydraulic cylinder 7. The motor 302 and the cutting blade 303 are devices with relatively mature existing technology. The specific models can be selected according to actual needs. The motor 302 can be powered by an internal power supply or by mains power. The specific power supply method can be selected according to the situation.

[0032] The working principle of the dust-free cutting device for aluminum profiles provided by this utility model is as follows: When the dust-free aluminum profile cutting device is working, the aluminum profile is first placed on the rectangular plate 201 of the processing table 2 through the feed port 104. The first hydraulic cylinder 7 is started, which drives the double-headed hydraulic cylinder 801 of the clamping assembly 8 to move to a suitable position. The double-headed hydraulic cylinder 801 is then started, and the connecting plates 802 at both output ends drive the clamping plate 803 to clamp the aluminum profile. The first hydraulic cylinder 7 is started again, pushing the aluminum profile towards the cutting mechanism 3. When the aluminum profile reaches the cutting position, the second hydraulic cylinder 301 is started, which drives the motor 302 and the cutting blade 303 to move down. At the same time, the motor 302 and the cutting blade 303 are started. 3. Rotate to cut the aluminum profile. During the cutting process, start the blower 9 to blow the debris on the processing table 2 toward the receiving screen 4. The debris passes through the receiving screen 4 and falls onto one side of the filter plate 6. At the same time, start the exhaust fan 5 so that the air with dust passes through the receiving screen 4 and the filter plate 6 in sequence, and is discharged after filtration to prevent the dust from spreading. After the cutting is completed, release the clamping plate 803. The first hydraulic cylinder 7 drives the clamping assembly 8 to reset. Repeat the above clamping and feeding steps to continue cutting. The cut aluminum profile slides down the inclined surface 202 of the rectangular plate 201 onto the receiving screen 4, and personnel can pick it up from the material pick-up port 10.

[0033] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, 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 dust-free cutting device for aluminum profiles, characterized in that, include: The outer shell (1) of the machine body is fixedly connected to the inner wall of the outer shell (1) and a processing table (2) is fixedly connected to the top of the inner wall of the outer shell (1). The cutting mechanism (3) is located above the processing table (2). The assembly comprises a receiving mesh (4), an exhaust fan (5), and a filter plate (6), wherein the receiving mesh (4) is fixedly disposed on the inner wall of the outer casing (1) of the machine body, the receiving mesh (4) is arranged side by side with the processing table (2), one side of the receiving mesh (4) is fixedly connected to one side of the processing table (2), the exhaust fan (5) is fixedly disposed at the bottom of the inner wall of the outer casing (1), and the output end of the exhaust fan (5) penetrates the outer casing (1), and the filter plate (6) is fixedly disposed between the lower surface of the processing table (2) and the inner wall of the outer casing (1), and the filter plate (6) is located between the receiving mesh (4) and the exhaust fan (5); and The first hydraulic cylinder (7) is fixedly installed on one side of the inner wall of the machine body shell (1). The first hydraulic cylinder (7) is located above the processing table (2). The output end of the first hydraulic cylinder (7) is fixedly connected to a clamping assembly (8). The top of the inner wall of the clamping assembly (8) is fixedly connected to a blower (9).

2. The dust-free cutting device for aluminum profiles according to claim 1, characterized in that, The outer shell (1) of the machine body includes a mounting shell (101). The outer wall of the processing table (2) and the receiving net (4) are fixedly connected to the inner wall of the mounting shell (101). A protective cover (102) is provided on the upper surface of the mounting shell (101). The upper end face of the cutting mechanism (3) is fixedly connected to the top of the inner wall of the protective cover (102). One end of the first hydraulic cylinder (7) is fixedly connected to one side of the inner wall of the protective cover (102). A maintenance door (103) is movably connected to one side of the protective cover (102). A feed port (104) is provided on one side of the protective cover (102). The feed port (104) is located below the first hydraulic cylinder (7).

3. The dust-free cutting device for aluminum profiles according to claim 1, characterized in that, The clamping assembly (8) includes a double-headed hydraulic cylinder (801). The output end of the first hydraulic cylinder (7) is fixedly connected to one side of the double-headed hydraulic cylinder (801). The upper surface of the blower (9) is fixedly connected to the lower surface of the double-headed hydraulic cylinder (801). Both output ends of the double-headed hydraulic cylinder (801) are fixedly connected to a connecting plate (802). The lower surface of the connecting plate (802) is fixedly connected to a clamping plate (803).

4. The dust-free cutting device for aluminum profiles according to claim 2, characterized in that, The protective cover (102) has a material taking port (10) on the side away from the feed inlet (104). The material taking port (10) is located above the receiving net (4). A baffle (11) is hinged to one side of the inner wall of the protective cover (102). The baffle (11) is located on one side of the material taking port (10).

5. The dust-free cutting device for aluminum profiles according to claim 2, characterized in that, The processing table (2) includes a rectangular plate (201). The outer wall of the rectangular plate (201) is fixedly connected to the inner wall of the mounting shell (101). One side of the rectangular plate (201) is fixedly connected to one side of the receiving net (4). The side of the rectangular plate (201) near the receiving net (4) is an inclined surface (202). A cutting opening (203) is provided on the rectangular plate (201). The cutting opening (203) is located below the cutting mechanism (3).

6. The dust-free cutting device for aluminum profiles according to claim 4, characterized in that, A cleaning port (12) is provided on one side of the mounting shell (101). The cleaning port (12) is located below the material inlet (10). A protective door (13) located inside the cleaning port (12) is movably connected to one side of the mounting shell (101).

7. The dust-free cutting device for aluminum profiles according to claim 5, characterized in that, The cutting mechanism (3) includes a second hydraulic cylinder (301), the upper end face of the second hydraulic cylinder (301) is fixedly connected to the top of the inner wall of the protective cover (102), the output end of the second hydraulic cylinder (301) is fixedly connected to a motor (302), the output end of the motor (302) is fixedly connected to a cutting blade (303), and the cutting blade (303) is located above the cutting opening (203).

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