Cutting device for processing smoke prevention and exhaust air pipe plate

Abstract

The invention belongs to the technical field of cutting devices, and particularly relates to a smoke exhaust prevention air pipe cutting device for plate processing, which comprises a cutting device main body and a dust falling mechanism located at the top of the cutting device main body, the dust falling mechanism comprises a water tank, the front side of the water tank is fixedly connected with a water pump, and the front of the water pump is communicated with a water conveying pipe. One end of the water conveying pipe is fixedly connected with the water pump, and the other end of the water conveying pipe communicates with a spraying head; the dust falling mechanism further comprises a recycling box, a leak hole plate is fixedly connected to the left side of the recycling box, and a fixed draught fan is arranged on the rear side of the recycling box. Water is controlled by the water pump to be input into the spraying head through the water conveying pipe to spray out water mist, dust caused by cutting is subjected to condensation operation, the condensed dust is sucked into the recycling box through the leakage hole plate by the fixed fan, dust falling operation is achieved, and the problem that a large amount of dust is generated when the cutting device is used for cutting and pollutes the environment is solved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of cutting devices, in particular to a cutting device for processing smoke prevention and exhaust air duct plate. BACKGROUND

[0002] The smoke prevention and exhaust air duct plate refers to a material specially used for making air ducts in building smoke prevention systems and exhaust systems. The core requirement of these plates is to maintain structural integrity and air tightness for a long enough time under high temperature in a fire to ensure that the system can effectively control smoke flow and gain valuable time for personnel evacuation and fire rescue.

[0003] In the prior art, a cutting device for a smoke prevention and exhaust composite air duct with the publication number CN220864146U is provided. The cutting device controls the cutting direction of the cutting disc through the cutting assembly, improves the safety of the device, and realizes accurate delivery of the cutting position through the positioning assembly. In combination with the cutting assembly, safe, efficient and flat cutting is achieved. However, the following problems still exist:

[0004] The cutting device described above can achieve accurate delivery of the cutting position through the positioning assembly. However, a large amount of dust is generated during cutting, which pollutes the environment. In addition, the cutting disc of the cutting device described above will be worn during cutting. Since it is fixed by bolts or welding, it cannot be replaced flexibly.

[0005] Therefore, a cutting device for processing smoke prevention and exhaust air duct plate is proposed to solve the above problems. SUMMARY

[0006] (I) Technical problems solved

[0007] In view of the deficiencies of the prior art, a cutting device for processing smoke prevention and exhaust air duct plate is proposed to solve the problems of a large amount of dust generated during cutting of the cutting device, which pollutes the environment, and the cutting disc cannot be replaced flexibly.

[0008] (II) Technical solutions

[0009] To achieve the above purpose, the application provides the following technical solutions: a cutting device for processing smoke prevention and exhaust air duct plate, comprising a cutting device main body, a dust falling mechanism located at the top of the cutting device main body, the dust falling mechanism comprising a water tank, the front side of the water tank being fixedly connected with a water pump, the front of the water pump being communicated with a water delivery pipe, one end of the water delivery pipe being fixedly connected with the water pump, the other end of the water delivery pipe being communicated with a spray head;

[0010] The dust falling mechanism further comprises a recycling box, a leakage hole plate is fixedly connected to the left side of the recycling box, a fixed fan is arranged on the rear side of the recycling box, and a dustproof net is fixedly connected to the right wall of the inner side of the recycling box.

[0011] Preferably, the cutting device body comprises a supporting base, a protective cover is fixedly connected to the rear of the outer part of the supporting base, soundproof boards are fixedly connected to the inner walls of the left and right sides of the protective cover, the top of the protective cover is fixedly connected with a water tank, and the right lower side of the inner wall of the protective cover is fixedly connected with a recycling box.

[0012] Preferably, a transverse adjusting mechanism is arranged at the rear of the top of the supporting base, the transverse adjusting mechanism comprises a supporting frame, a first motor is fixedly connected to the left side of the inner part of the supporting frame, a guide lead screw is fixedly connected to the output end of the first motor, and a lead screw sleeve block is threadedly connected to the outer part of the guide lead screw.

[0013] Preferably, a height adjusting mechanism is arranged at the bottom of the transverse adjusting mechanism, the height adjusting mechanism comprises a T-shaped frame, the T-shaped frame is fixedly connected with the bottom of the lead screw sleeve block, a movable arm is movably connected to the bottom of the T-shaped frame, a second hydraulic oil cylinder is arranged between the T-shaped frame and the movable arm, and the second hydraulic oil cylinder is movably connected with the T-shaped frame and the movable arm respectively.

[0014] Preferably, a cutting mechanism is arranged at the bottom of the height adjusting mechanism, the cutting mechanism comprises a second motor, the second motor is fixedly connected to the front side of the movable arm, and a mounting seat is fixedly connected to the output end of the second motor.

[0015] Preferably, a supporting lead screw is fixedly connected to the inner part of the mounting seat, a rotating handle is fixedly connected to the front of the supporting lead screw, a lead screw sleeve ring is threadedly connected to the outer part of the supporting lead screw, a supporting spring is sleeved with the rear of the lead screw sleeve ring on the outer part of the supporting lead screw, the lead screw sleeve ring is elastically connected with the mounting seat through the supporting spring, adjusting rods are movably connected to the upper, lower, front and rear four sides of the outer wall of the lead screw sleeve ring, one end of each adjusting rod is movably connected with a lead screw sleeve ring, and a fixed insertion rod is movably arranged at the other end of the adjusting rod.

[0016] Preferably, the cutting mechanism further comprises a cutting disc, a mounting ring is fixedly connected to the inner part of the cutting disc, fixed insertion holes are arranged on the inner wall of the mounting ring, and the fixed insertion holes are matched with the fixed insertion rods.

[0017] Preferably, the top of the support base is provided with a propulsion mechanism, the propulsion mechanism comprises two sliding grooves, the two sliding grooves are respectively arranged on the left side and the right side of the top of the support base, a guide gear slot is arranged at the bottom of each sliding groove, a sliding block is slidably connected in each sliding groove, a guide gear is movably connected to the bottom of each sliding block, the guide gear is movably connected with the guide gear slot, a drive shaft is fixedly connected in the two guide gears, and the left side of the drive shaft is fixedly connected with the output end of the third motor.

[0018] Preferably, the top of the propulsion mechanism is provided with a fixing mechanism, the fixing mechanism comprises a fixing base, the fixing base is fixedly connected to the top of the two sliding blocks, a second hydraulic oil cylinder is fixedly connected to the left side and the right side of the fixing base, a clamping plate is fixedly connected to the output end of each second hydraulic oil cylinder, guide rods are fixedly connected to the front side and the back side of the back side of the two clamping plates, and the guide rods are slidably connected with the fixing base.

[0019] Preferably, limit posts are slidably connected to the front side and the back side of the top of each clamping plate, a fixed spring is sleeved with the outside of each limit post, a fixed pressing plate is fixedly connected to the top of each limit post, and the fixed pressing plate is elastically connected with the clamping plate through the fixed spring.

[0020] (Three) beneficial effects

[0021] Compared with the prior art, the cutting device for processing smoke exhaust air pipe plate has the following beneficial effects:

[0022] 1、The water pump controls the water to be input to the spray head through the water delivery pipe to spray water mist, realizes the condensation operation of the dust caused by cutting, and realizes the dust reduction operation by the fixed fan sucking the condensed dust into the recycling box through the leakage hole plate, solves the problem that a large amount of dust is generated during cutting of the cutting device to pollute the environment.

[0023] 2、The handle controls the fixed insertion rod to retract, the mounting ring is sleeved outside the mounting seat, the fixed insertion hole is aligned with the fixed insertion rod, the fixed insertion rod is inserted into the fixed insertion hole by the support spring, the installation and fixation of the cutting disc are realized, the second motor controls the rotation of the cutting disc, the cutting operation is realized, and the problem that the cutting disc cannot be flexibly replaced is solved.

[0024] 3、The second hydraulic oil cylinder controls the opposite movement of the two clamping plates, realizes the left and right fixation of the plate, the fixed pressing plate is controlled to move downward by the fixed spring, realizes the vertical fixation of the plate, and solves the fixation problem of the plate during cutting.

[0025] 4、The first motor controls the horizontal movement of the screw sleeve block, the cutting position of the cutting assembly is adjusted, the second hydraulic oil cylinder controls the downward movement of the cutting assembly driven by the movable arm, the cutting assembly and the plate to be processed are cut, and the adjustment problem of the cutting position during cutting is solved.

[0026] 5、The third motor controls the rotation of the two guide gears, the sliding block is moved along the sliding groove by the meshing action of the guide gear and the guide gear slot, the plate to be processed is pushed for cutting, and the plate advancing problem is solved. DETAILED DESCRIPTION

[0027] The drawings described herein are used to provide further understanding of the present application, constitute a part of the present application, the schematic embodiments of the present application and the description thereof are used to explain the present application, and do not constitute improper limitation on the present application. In the drawings:

[0028] Figure 1 is a schematic view of the three-dimensional structure of the present application;

[0029] Figure 2 is a schematic view of the three-dimensional structure inside the cutting device main body of the present application;

[0030] Figure 3 is a schematic view of the three-dimensional structure of the adjusting mechanism of the present application;

[0031] Figure 4 is a schematic view of the three-dimensional structure inside the recycling box of the present application;

[0032] Figure 5 is a schematic view of the three-dimensional structure of the fixing mechanism of the present application;

[0033] Figure 6 is a schematic view of the three-dimensional structure of the present application Figure 3 is a schematic view of the three-dimensional structure of the present application

[0034] In the drawings: 1, cutting device main body; 101, support base; 102, protective cover; 103, soundproof board;

[0035] 2, horizontal adjusting mechanism; 201, support frame; 202, first motor; 203, guide screw; 204, screw sleeve block;

[0036] 3, height adjusting mechanism; 301, T-shaped frame; 302, movable arm; 303, second hydraulic oil cylinder;

[0037] 4, cutting mechanism; 401, second motor; 402, mounting seat; 403, support screw; 404, handle; 405, screw sleeve ring; 406, support spring; 407, adjusting rod; 408, fixed insertion rod; 409, cutting disc; 4010, mounting ring; 4011, fixed insertion hole;

[0038] 5, dust falling mechanism; 501, water tank; 502, water pump; 503, water delivery pipe; 504, recovery tank; 505, leakage hole plate; 506, fixed fan; 507, dustproof net; 508, spray head;

[0039] 6, pushing mechanism; 601, sliding groove; 602, guide tooth groove; 603, sliding block; 604, guide gear; 605, drive shaft; 606, third motor;

[0040] 7, fixing mechanism; 701, fixing base; 702, clamping plate; 703, second hydraulic oil cylinder; 704, guide rod; 705, limiting column; 706, fixing spring; 707, fixing pressing plate. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative work are within the protection scope of the present application.

[0042] The specific embodiments are given below.

[0043] Please refer to Figures 1-6 The present application provides a cutting device for processing smoke exhaust air duct plate, which comprises a cutting device main body 1, a dust falling mechanism 5 located at the top of the cutting device main body 1, a horizontal adjustment mechanism 2 arranged at the back of the top of the supporting base 101, a height adjustment mechanism 3 arranged at the bottom of the horizontal adjustment mechanism 2, a cutting mechanism 4 arranged at the bottom of the height adjustment mechanism 3, a pushing mechanism 6 arranged at the top of the supporting base 101, and a fixing mechanism 7 arranged at the top of the pushing mechanism 6.

[0044] As Figure 1 , Figure 2 and Figure 4As shown, the dust falling mechanism 5 includes a water tank 501, the front side of the water tank 501 is fixedly connected with a water pump 502, the front side of the water pump 502 is communicated with a water delivery pipe 503, one end of the water delivery pipe 503 is fixedly connected with the water pump 502, the other end of the water delivery pipe 503 is communicated with a spray head 508; the dust falling mechanism 5 further includes a recovery tank 504, the left side of the recovery tank 504 is fixedly connected with a leak hole plate 505, the rear side of the recovery tank 504 is provided with a fixed fan 506, the right wall of the inner side of the recovery tank 504 is fixedly connected with a dust screen 507, the cutting device main body 1 includes a supporting base 101, the rear side of the outside of the supporting base 101 is fixedly connected with a protective cover 102, the left and right sides of the inner wall of the protective cover 102 are both fixedly connected with soundproof boards 103, the top of the protective cover 102 is fixedly connected with the water tank 501, the right side below the inner wall of the protective cover 102 is fixedly connected with the recovery tank 504.

[0045] Through the above scheme: the water pump 502 starts, the water in the water tank 501 is input to the spray head 508 through the water delivery pipe 503 to spray water mist, the dust caused by cutting is condensed, the fixed fan 506 starts, the dust after condensation is sucked into the recovery tank 504 through the leak hole plate 505, and the dust falling operation is completed.

[0046] As shown in Figures 1-3 , the transverse adjusting mechanism 2 includes a supporting frame 201, the left side of the inside of the supporting frame 201 is fixedly connected with a first motor 202, the output end of the first motor 202 is fixedly connected with a guide screw rod 203, the outside of the guide screw rod 203 is threadedly connected with a screw rod sleeve block 204, the height adjusting mechanism 3 includes a T-shaped frame 301, the T-shaped frame 301 is fixedly connected with the bottom of the screw rod sleeve block 204, the bottom of the T-shaped frame 301 is movably connected with a movable arm 302, a second hydraulic oil cylinder 303 is arranged between the T-shaped frame 301 and the movable arm 302, and the second hydraulic oil cylinder 303 is movably connected with the T-shaped frame 301 and the movable arm 302.

[0047] Through the above scheme: the first motor 202 starts to drive the guide screw rod 203 to rotate, the screw rod sleeve block 204 is pushed to move transversely under the action of the thread, the cutting position of the cutting assembly is adjusted, and the second hydraulic oil cylinder 303 is started. Since the second hydraulic oil cylinder 303 is movably connected with the T-shaped frame 301 and the movable arm 302, the movable arm 302 drives the cutting assembly to move downward, so that the cutting assembly cuts the plate to be processed.

[0048] As shown in Figure 1 , Figure 2 , Figure 3 and Figure 6As shown, the cutting mechanism 4 comprises a second motor 401 fixedly connected to the front side of the movable arm 302, the output end of the second motor 401 is fixedly connected with a mounting seat 402, the inside of the mounting seat 402 is fixedly connected with a supporting lead screw 403, the front of the supporting lead screw 403 is fixedly connected with a handle 404, the outside of the supporting lead screw 403 is threadedly connected with a lead screw sleeve 405, the outside of the supporting lead screw 403 is sleeved with a supporting spring 406 behind the lead screw sleeve 405, the lead screw sleeve 405 is elastically connected with the mounting seat 402 through the supporting spring 406, the upper and lower front and rear four sides of the outer wall of the lead screw sleeve 405 are movably connected with adjusting rods 407, one end of each adjusting rod 407 is movably connected with the lead screw sleeve 405, the other end of the adjusting rod 407 is movably connected with a fixed insertion rod 408, the cutting mechanism 4 further comprises a cutting disc 409, the inside of the cutting disc 409 is fixedly connected with a mounting ring 4010, the upper and lower front and rear four sides of the inner wall of the mounting ring 4010 are provided with fixed insertion holes 4011, the fixed insertion holes 4011 are matched with the fixed insertion rod 408.

[0049] Through the above scheme: rotating the handle 404 drives the supporting lead screw 403 to rotate, under the action of the thread, the lead screw sleeve 405 is pushed to move right, since one end of the adjusting rod 407 is movably connected with the lead screw sleeve 405, and the other end of the adjusting rod 407 is movably connected with the fixed insertion rod 408, under the action of the adjusting rod 407, the fixed insertion rod 408 is retracted, the mounting ring 4010 is sleeved outside the mounting seat 402, the fixed insertion holes 4011 are aligned with the fixed insertion rod 408, since the lead screw sleeve 405 is elastically connected with the mounting seat 402 through the supporting spring 406, under the elastic force of the supporting spring 406, the lead screw sleeve 405 is pushed to move left, under the action of the adjusting rod 407, the fixed insertion rod 408 is opened and inserted into the fixed insertion hole 4011, the installation and fixation of the cutting disc 409 are completed, the second motor 401 is started to drive the mounting seat 402 to rotate, thereby driving the cutting disc 409 to rotate, and the cutting operation is completed.

[0050] As shown in Figure 1 and Figure 2 , the advancing mechanism 6 comprises two sliding grooves 601, the two sliding grooves 601 are respectively arranged on the left and right sides of the top of the supporting base 101, the bottom of each sliding groove 601 is provided with a guide gear slot 602, the inside of each sliding groove 601 is slidably connected with a sliding block 603, the bottom of each sliding block 603 is movably connected with a guide gear 604, the guide gear 604 is meshedly connected with the guide gear slot 602, the inside of the two guide gears 604 is fixedly connected with a drive shaft 605, the left side of the drive shaft 605 is fixedly connected with the output end of a third motor 606.

[0051] Through the above scheme: the third motor 606 starts, drives the two guide gears 604 to rotate under the action of the drive shaft 605, and drives the sliding block 603 to move along the sliding groove 601 under the meshing action of the guide gear 604 and the guide gear groove 602, and drives the plate to be processed to cut.

[0052] As shown in Figure 1 and Figure 5 The fixing mechanism 7 includes a fixing base 701 fixedly connected to the top of the two sliding blocks 603, and the left and right sides of the fixing base 701 are fixedly connected with second hydraulic oil cylinders 703. The output end of each second hydraulic oil cylinder 703 is fixedly connected with a clamping plate 702, and the front and back sides of the back side of each clamping plate 702 are fixedly connected with guide rods 704 which are slidingly connected with the fixing base 701. The front and back sides of the top of each clamping plate 702 are slidingly connected with limiting columns 705, the outside of each limiting column 705 is sleeved with a fixed spring 706, and the top of each limiting column 705 is fixedly connected with a fixed pressing plate 707 which is elastically connected with the clamping plate 702 through the fixed spring 706.

[0053] Through the above scheme: the plate is placed on the fixing base 701, the second hydraulic oil cylinder 703 is started, and the two clamping plates 702 are pushed to move towards each other under the action of the guide rod 704, so that the plate is fixed left and right. Because the fixed pressing plate 707 is elastically connected with the clamping plate 702 through the fixed spring 706, under the elastic force of the fixed spring 706, the fixed pressing plate 707 is pushed to move downward, and the plate is fixed in the vertical direction.

[0054] Working principle:

[0055] In actual use, first, the support screw rod 403 is driven to rotate by the handle 404, the screw sleeve 405 is pushed to move right, the fixed plug rod 408 is retracted by the adjusting rod 407, the mounting ring 4010 is sleeved outside the mounting seat 402, the fixed plug hole 4011 is aligned with the fixed plug rod 408, the screw sleeve 405 is pushed to move left by the support spring 406, the fixed plug rod 408 is opened by the adjusting rod 407 and inserted into the fixed plug hole 4011, the installation and fixation of the cutting disc 409 are completed, the mounting seat 402 is driven to rotate by the second motor 401, the cutting disc 409 is rotated, and the cutting operation is completed.

[0056] Secondly, the plate is placed on the fixing base 701, the two clamping plates 702 are pushed to move towards each other under the action of the guide rod 704 by the second hydraulic oil cylinder 703, so that the plate is fixed left and right, and the fixed pressing plate 707 is pushed to move downward by the fixed spring 706, so that the plate is fixed in the vertical direction.

[0057] Then, the guide screw rod 203 is driven to rotate by the first motor 202, the screw sleeve block 204 is pushed to move horizontally, the cutting position of the cutting assembly is adjusted, the movable arm 302 drives the cutting assembly to move downward by the second hydraulic oil cylinder 303, and the cutting assembly is cut with the plate to be processed.

[0058] Then, the two guide gears 604 are driven to rotate by the third motor 606 under the action of the driving shaft 605, the sliding block 603 is pushed to move along the sliding groove 601 by the meshing action of the guide gear 604 and the guide gear groove 602, and the plate to be processed is pushed to cut.

[0059] Finally, the water in the water tank 501 is input into the spray head 508 through the water inlet pipe 503 by the water pump 502 to spray water mist, dust caused by cutting is condensed, the condensed dust is sucked into the recovery tank 504 through the leakage plate 505 by the fixed fan 506, and the dust reduction operation is completed.

[0060] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principle of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application.

Claims

1. A cutting device for processing of smoke control air duct plate, comprising a cutting device main body (1), a dust falling mechanism (5) located at the top of the cutting device main body (1), characterized in that, The dust falling mechanism (5) includes a water tank (501), the front side of the water tank (501) is fixedly connected with a water pump (502), the front of the water pump (502) is communicated with a water delivery pipe (503), one end of the water delivery pipe (503) is fixedly connected with the water pump (502), the other end of the water delivery pipe (503) is communicated with a spray head (508); The dust falling mechanism (5) further includes a recycling box (504), the left side of the recycling box (504) is fixedly connected with a perforated plate (505), the back of the recycling box (504) is provided with a fixed fan (506), the right wall of the inner side of the recycling box (504) is fixedly connected with a dust screen (507).

2. A cutting device for cutting a smoke control air duct plate according to claim 1, characterized in that: The cutting device main body (1) includes a support base (101), the back of the outside of the support base (101) is fixedly connected with a protective cover (102), the left and right sides of the inner wall of the protective cover (102) are both fixedly connected with soundproof boards (103), the top of the protective cover (102) is fixedly connected with a water tank (501), the right side below the inner wall of the protective cover (102) is fixedly connected with a recycling box (504).

3. A cutting device for cutting a smoke control air duct plate according to claim 2, characterized in that: The back of the top of the support base (101) is provided with a transverse adjusting mechanism (2), the transverse adjusting mechanism (2) includes a support frame (201), the left side of the inside of the support frame (201) is fixedly connected with a first motor (202), the output end of the first motor (202) is fixedly connected with a guide screw rod (203), the outside of the guide screw rod (203) is threadedly connected with a screw rod sleeve block (204).

4. A cutting device for cutting a smoke control air duct plate according to claim 3, characterized in that: The bottom of the transverse adjusting mechanism (2) is provided with a height adjusting mechanism (3), the height adjusting mechanism (3) includes a T-shaped frame (301), the bottom of the T-shaped frame (301) is fixedly connected with the screw rod sleeve block (204), the bottom of the T-shaped frame (301) is movably connected with a movable arm (302), a second hydraulic oil cylinder (303) is arranged between the T-shaped frame (301) and the movable arm (302), and the second hydraulic oil cylinder (303) is movably connected with the T-shaped frame (301) and the movable arm (302) respectively.

5. A cutting device for cutting a smoke control air duct plate according to claim 4, characterized in that: The bottom of the height adjusting mechanism (3) is provided with a cutting mechanism (4), the cutting mechanism (4) includes a second motor (401), the second motor (401) is fixedly connected to the front side of the movable arm (302), and the output end of the second motor (401) is fixedly connected with a mounting seat (402).

6. A cutting device for cutting a smoke control air duct plate according to claim 5, characterized in that: The inside of the mounting base (402) is fixedly connected with a supporting lead screw (403), the front of the supporting lead screw (403) is fixedly connected with a rotating handle (404), the outside of the supporting lead screw (403) is threadedly connected with a lead screw sleeve ring (405), the rear of the supporting lead screw (403) outside the lead screw sleeve ring (405) is sleeved with a supporting spring (406), the lead screw sleeve ring (405) is elastically connected with the mounting base (402) through the supporting spring (406), the upper and lower front and rear four sides of the outer wall of the lead screw sleeve ring (405) are movably connected with adjusting rods (407), one end of each adjusting rod (407) is movably connected with the lead screw sleeve ring (405), the other end of the adjusting rod (407) is movably connected with a fixed insertion rod (408).

7. A cutting device for cutting a smoke control air duct plate according to claim 5, characterized in that: The cutting mechanism (4) further comprises a cutting disc (409), the inside of the cutting disc (409) is fixedly connected with a mounting ring (4010), the upper and lower front and rear four sides of the inner wall of the mounting ring (4010) are provided with fixed insertion holes (4011), the fixed insertion holes (4011) are matched with the fixed insertion rod (408).

8. A cutting device for cutting a smoke control air duct plate according to claim 2, characterized in that: The top of the supporting base (101) is provided with a propelling mechanism (6), the propelling mechanism (6) comprises two sliding grooves (601), the two sliding grooves (601) are respectively arranged on the left and right sides of the top of the supporting base (101), the bottom of each sliding groove (601) is provided with a guide gear slot (602), the inside of each sliding groove (601) is slidably connected with a sliding block (603), the bottom of each sliding block (603) is movably connected with a guide gear (604), the guide gear (604) is in meshing connection with the guide gear slot (602), the inside of each guide gear (604) is fixedly connected with a driving shaft (605), the left side of the driving shaft (605) is fixedly connected with the output end of a third motor (606).

9. A cutting device for cutting a smoke control air duct plate according to claim 8, characterized in that: The top of the propelling mechanism (6) is provided with a fixing mechanism (7), the fixing mechanism (7) comprises a fixing base (701), the fixing base (701) is fixedly connected on the top of the two sliding blocks (603), the left and right sides of the fixing base (701) are fixedly connected with second hydraulic oil cylinders (703), the output end of each second hydraulic oil cylinder (703) is fixedly connected with a clamping plate (702), the front and rear sides of the back of each clamping plate (702) are fixedly connected with guide rods (704), the guide rods (704) are slidably connected with the fixing base (701).

10. A cutting device for cutting a smoke control air duct plate according to claim 9, characterized in that: The front and rear sides of the top of each clamping plate (702) are slidably connected with limiting columns (705), the outside of each limiting column (705) is sleeved with a fixed spring (706), the top of each limiting column (705) is fixedly connected with a fixed pressing plate (707), the fixed pressing plate (707) is elastically connected with the clamping plate (702) through the fixed spring (706).

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