Saw blade type cutting equipment for large corrugated pipe

Abstract

The invention relates to the technical field of corrugated pipe machining equipment, and particularly discloses large corrugated pipe saw blade type cutting equipment which comprises a conveying unit and a saw cutting unit, the saw cutting unit comprises a ring cover, a notch clamping mechanism is arranged in the ring cover, a rotating ring body is concentrically and rotationally arranged at the side end of the ring cover, and radial strip openings are formed in the rotating ring body; the radial strip opening is connected with a movable block through a spring and a radial guide column, the end, extending into the annular cover, of the movable block is connected with a permanent magnet, the other end of the movable block is connected with a saw blade, a plurality of tile-shaped magnetic blocks are evenly arranged on the inner wall of the annular cover at intervals, and an electromagnet is arranged on the inner wall, axially aligned with the notch clamping mechanism, of the annular cover. According to the saw blade type cutting equipment, the effect of simulating manual saw cutting can be achieved, the corrugated pipe is clamped and fixed in the cutting process, and the saw blade rotates and operates on the same parallel direction all the time, so that the end face of the corrugated pipe is kept flat after the corrugated pipe is cut off, and the cutting-off effect of the large corrugated pipe is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of corrugated pipe processing equipment, and specifically discloses a saw blade type cutting equipment used for cutting large corrugated pipes. Background Art

[0002] Some large corrugated pipes need to have the burrs of the ports cut off after injection molding to ensure flatness. In addition, they need to be cut to a fixed length according to customer needs. Traditional corrugated pipe cutting usually uses a high-speed rotating cutting wheel to achieve the cutting process. During the operation, the cutting wheel is pressed down until the cutting wheel penetrates the entire pipe to complete the cutting. However, large corrugated pipes for municipal use have a large diameter and cannot be cut directly by the pressing action of the cutting wheel. The pipe needs to be manually rotated during the cutting process, which makes the entire cutting process time-consuming and labor-intensive. In addition, saw blade cutting equipment is also used to cut large corrugated pipes. The operation process is not only time-consuming and labor-intensive, but also cannot guarantee the flatness of the bellows port after cutting.

[0003] For example, the invention patent with application number CN2019101095849 discloses a corrugated pipe cutting device, including a workbench, on which a fixing device and a cutting device are provided; the cutting device includes a cutting machine, an auxiliary bracket for adjusting the position of the cutting machine, which is located on a side of the workbench perpendicular to the direction of the support axis and fixedly connected to the cutting machine, and the cutting machine includes a cutting machine base for fixing the cutting machine, a blade for cutting the corrugated pipe, and a motor for providing kinetic energy to the blade. The corrugated pipe cutting device disclosed in the patent can be used for small-diameter corrugated pipe cutting processing, but it cannot meet the cutting operation requirements when used for some municipal large-diameter corrugated pipe cutting processing. For example, the invention patent with application number 2024100564991 discloses an adjustable corrugated pipe cutting device, including a fixing frame, a cutting machine, a push rod II, a fixing block, a cover, a connecting pipe and a power assembly; the fixing frame is connected to a power assembly, the power assembly is connected to a cutting machine, and the power assembly is used to drive the cutting machine to cut the corrugated pipe body. Although the corrugated pipe cutting equipment disclosed in the patent can be used for cutting large corrugated pipes, the corrugated pipe needs to be rotated during the cutting process. In addition, the corrugated pipe needs to be axially transported after cutting, which makes the structural design of the bearing equipment for axial transportation and rotation of the corrugated pipe complex. In addition, the pipe rotation is unstable during the cutting process, resulting in uneven ports after cutting. Based on this, the present application proposes a newly designed saw blade cutting equipment for cutting large corrugated pipes to solve the above-mentioned shortcomings of the existing corrugated pipe cutting equipment. Summary of the invention

[0004] The present invention aims to provide a saw blade cutting device for cutting large corrugated pipes, so as to solve the shortcomings of existing corrugated pipe cutting devices in the process of cutting large-diameter corrugated pipes.

[0005] The present invention is achieved through the following technical solutions: A large-scale bellows saw blade cutting device comprises a conveying unit and a sawing unit, wherein the sawing unit comprises an annular cover arranged in axial alignment with the large-scale bellows on the conveying unit, a clamping and cutting mechanism for clamping and cutting the large-scale bellows is arranged inside the annular cover, a rotating ring body is arranged coaxially at the side end of the annular cover away from the conveying unit, and a driving component for driving the rotating ring body is arranged on the annular cover, a radial strip opening is opened on the rotating ring body, and a movable block is connected to the radial strip opening through a spring and a radial guide column, the end of the movable block extending into the annular cover is connected to a permanent magnet, and the other end of the movable block is connected to a saw blade extending out of the radial strip opening and arranged radially, a plurality of tile-shaped magnetic blocks acting with the permanent magnet are evenly spaced on the inner wall of the annular cover, and an electromagnet acting with the permanent magnet is arranged on the inner wall of the annular cover axially aligned with the clamping and cutting mechanism.

[0006] During the operation of the large-scale bellows saw blade cutting device disclosed in the present invention, the conveying unit stably moves the large-scale bellows toward one side of the sawing unit. When the position of the large-scale bellows to be cut moves to the clamping and cutting mechanism, the conveying is firstly stopped, and then the large-scale bellows is clamped by the clamping and cutting mechanism, and then an incision is cut on the surface of the large-scale bellows to facilitate the insertion of the saw blade.

[0007] The large bellows is then transported further until the cut is aligned with the saw blade, and then clamped by the cut clamping mechanism before sawing. The current in the electromagnet is then cut off, causing the movable block and the saw blade to move radially downward for a certain distance under the action of the spring restoring force, allowing the saw blade to extend into the cut.

[0008] Then start the driving assembly to make the rotating ring body rotate at the set speed, and during the rotation of the rotating ring body, it will synchronously drive the movable block, saw blade and permanent magnet to rotate and move. During the rotation of the permanent magnet, it will be intermittently acted upon by the tile-shaped magnetic block and the spring, so that the movable block, saw blade and permanent magnet can reciprocate radially. During the radial reciprocating movement of the saw blade, the corrugated tube can be sawed by the saw teeth. At the same time, with the rotation of the saw blade, the large corrugated tube can be sawed in an annular manner until the saw blade completes the annular cutting process of the large corrugated tube.

[0009] As a further configuration of the above scheme, a circular track is provided at the side end of the ring cover, the rotating ring body is rotatably arranged on the circular track, the driving assembly includes a driving motor and a gear, and the gear is arranged on the motor shaft of the driving motor, and the rotating ring body is provided with a gear ring meshing with the gear. The above is one of the specific installation and driving methods of the rotating ring body, so that under the action of the driving motor, the rotating ring body can stably rotate around its own center at a uniform speed.

[0010] As a further configuration of the above scheme, the clamping and cutting mechanism includes an arc-shaped pressing plate arranged in the ring cover and a second cylinder driving the arc-shaped pressing plate to move radially, a cutting die head is arranged in the arc-shaped pressing plate, and a first cylinder is arranged on the arc-shaped pressing plate to push the cutting die head toward the large corrugated pipe. The above is one of the specific design methods of the clamping and cutting mechanism. Usually, the clamping and cutting mechanism is arranged in pairs. Under the action of the second cylinder, the two arc-shaped pressing plates can press and fix the large corrugated pipe, and then under the action of the first cylinder, the cutting die head can be pushed, thereby cutting a hole at the position where the large corrugated pipe is clamped.

[0011] As a further configuration of the above scheme, the outer end of the movable block extending out of the radial blade opening is connected to a saw blade mounting block, and the saw blade is detachably mounted on the saw blade mounting block through a connecting piece. The above is one of the specific installation methods of the saw blade, and the above design allows the saw blade to be quickly replaced when the sawing effect decreases.

[0012] As a further configuration of the above scheme, a magnetic isolation block is provided between two adjacent tile-shaped magnetic blocks and between the tile-shaped magnetic block and the electromagnet. The design of the magnetic isolation block can avoid the mutual influence of the magnetic field between two adjacent tile-shaped magnetic blocks or between the tile-shaped magnetic block and the electromagnet, thereby causing the saw blade to have too short a stroke during the radial reciprocating movement to realize sawing.

[0013] As a further configuration of the above solution, the ends of the plurality of tile-shaped magnetic blocks close to the electromagnets are all configured with opposite magnetic poles.

[0014] As a further configuration of the above scheme, the conveying unit includes two parallel side plates in front and back, conveying wheels are arranged at both ends of the side plates, and the end of one of the conveying wheels is connected to a conveying motor, a conveying belt is arranged between the two conveying wheels, and the two conveying belts are arranged at a certain angle to contact the side surface of the lower end of the large corrugated pipe.

[0015] As a further configuration of the above scheme, it also includes a support and transfer unit arranged on the opposite side of the conveying unit, the support and transfer unit includes a movable base arranged to move perpendicular to the conveying direction of the large corrugated pipe, a third cylinder and a movable frame are arranged on the movable base, the third cylinder is connected to the movable frame to realize the movement of the movable frame parallel to the conveying direction of the large corrugated pipe, and the movable frame is provided with a tightening component that opens or contracts synchronously at one end facing the large corrugated pipe.

[0016] As a further configuration of the above scheme, the tightening assembly is a hollow column which is concentrically arranged with the ring cover and fixedly connected to the movable frame, the outer end of the hollow column is provided with an end block, the movable frame is provided with a fourth cylinder for realizing the end block to approach or move away from the hollow column, the periphery of the hollow column and the end block is evenly connected with a plurality of movable fork frames, and the radial outer end of each movable fork frame is connected with a support bar.

[0017] The structural design of the above-mentioned support transfer unit is that before cutting the large corrugated pipe, the tensioning assembly is first moved to align with the opening of the large corrugated pipe, and then extended into it under the action of the third cylinder. Subsequently, the multiple movable forks are synchronously opened by the fourth cylinder, so that the multiple support bars jointly support and fix the inner wall of the large corrugated pipe from the inside, avoiding the movement of the large corrugated pipe during the sawing process, resulting in uneven cutting ports. In addition, after the large corrugated telescopic pipe is cut, the moving base can be directly parallelized to stagger the two sections after cutting, and finally the tensioning assembly is controlled to release the support and fixation of the large corrugated pipe after cutting, so that the large and small corrugated pipes can be quickly removed and transferred.

[0018] Compared with the prior art, the present invention has the following beneficial effects: The saw blade cutting equipment disclosed in the present invention uses a rotating ring body as a motion carrier, so that the saw blade can rotate synchronously for cutting, and at the same time, under the action of the spring, the tile-shaped magnetic block and the permanent magnet, the saw blade can reciprocate in the radial direction, thereby achieving the effect of simulating manual sawing. In addition, the corrugated tube is clamped and fixed during the cutting process, and the saw blade always rotates in the same parallel direction, so that after the corrugated tube is cut, its end face can be kept flat, effectively improving the cutting effect of large corrugated tubes.

[0019] When cutting large corrugated pipes, the saw blade cutting equipment disclosed in the present invention can, through the clamping and cutting mechanism, pre-process incisions on the surface of the pipe to facilitate the subsequent insertion of the saw blade and reduce the difficulty of the saw blade in the early stage of sawing. Secondly, the corrugated pipe can be clamped and fixed during the sawing process to ensure stability during the cutting process. In addition, the entire cutting process of the large corrugated pipe is fully automated and continuously processed, thereby effectively improving the cutting efficiency of the large corrugated pipe.

[0020] The present invention further provides a support transfer unit to assist the cutting process of large corrugated pipes, which can not only support and fix the corrugated pipes from the inside during the cutting process to ensure the cutting effect of the corrugated pipes, but also can move the cut corrugated pipes away by parallel movement after the processing is completed, thereby realizing rapid unloading, further improving the overall processing efficiency, and avoiding damage caused by the corrugated pipes falling directly to the ground after being cut, thereby ensuring the quality of the products after cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure from a first angle of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure from a second angle of the present invention; Figure 3 It is a schematic diagram of the side plan structure of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the sawing unit in the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the ring cover, tile-shaped magnetic block, magnetic isolation block, etc. in the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the ring cover, rotating ring body, etc. in the present invention; Figure 7 It is a schematic diagram of the cross-sectional three-dimensional structure of the rotating ring body in the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the movable block, spring, permanent magnet, saw blade, etc. in the present invention; Fig. 9 It is a schematic diagram of the planar structure of the clamping and cutting mechanism in the present invention; Fig.10 It is a schematic diagram of the three-dimensional structure of the support transfer unit in the present invention; Fig.11 For the present invention Figure 7 Schematic diagram of the enlarged structure at point A in the middle. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0024] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. Figures 1 to 11 , and describes the application in detail with reference to embodiments. Example 1

[0025] Embodiment 1 discloses a saw blade type cutting device for cutting large corrugated pipes, Figure 1 and attached Figure 2 The main body of the device includes a conveying unit 1, a sawing unit 2 and a control box 5. The conveying unit 1 includes two side panels 101 arranged in parallel in front and back, and the control box 5 is installed on the outer surface of one of the side panels 101. A conveying wheel 102 is arranged on the left and right sides of the upper ends of the two side panels 101, and a conveying motor 103 is connected to the end of one of the conveying wheels 102, and then a conveying belt 104 is arranged between the two conveying wheels 102, and the two conveying belts 104 are inclined at a certain angle to contact the side of the lower end of the large corrugated pipe 100, which can realize the stable conveying of the large corrugated pipe on the premise of realizing effective support for the large corrugated pipe.

[0026] Reference Figures 4 to 7 The sawing unit 2 includes an annular cover 201 which is aligned concentrically with the large bellows 100 on the conveying unit 1, and a support seat 202 is connected to the lower end of the annular cover 201 to achieve stable support. Two clamping and cutting mechanisms 3 are arranged opposite to each other on one side of the annular cover 201 close to the conveying unit 1. The clamping and cutting mechanisms 3 can first clamp and fix the large bellows 100, and then a small opening is cut on its surface to facilitate the subsequent insertion of the saw blade. An annular track 203 is fixed on the inner wall of the annular cover 201 away from the conveying unit 1, and a rotating ring body 204 is arranged on the annular track 203 to rotate at the upper limit position, and a driving component for driving the rotating ring body 204 to rotate is arranged on the annular cover 201. The specific driving component includes a driving motor 205 fixed to the outer end of the ring cover 201, and a gear is arranged on the motor shaft of the driving motor 205, and then a ring gear 206 meshing with the gear is concentrically arranged on the rotating ring body 204. The meshing transmission between the gear and the ring gear can realize the rotating ring body 204 to rotate around its own central axis at a set speed.

[0027] Reference Fig. 9 The clamping and cutting mechanism 3 includes an arc-shaped pressing plate 301 arranged on the inner circle of the ring cover 201, a cutting die 302 is arranged in the arc-shaped pressing plate 301, and a first cylinder 303 is arranged on the arc-shaped pressing plate 301 to push the cutting die 302 toward the central axis. In addition, guide rods 304 extending out of the ring cover 201 are arranged at both ends of the arc-shaped pressing plate 301, and a connecting strip 305 is commonly connected to the outer ends of the two guide rods 304, and finally a second cylinder 306 connected to the connecting strip 305 is arranged on the outer side of the ring cover 201. Under the action of the second cylinder 306, the radial movement of the arc-shaped pressing plate 301 can be realized, so that the arc-shaped pressing plate 301 is pressed on the outer surface of the large corrugated pipe 100, and then the first cylinder 303 is started to push the cutting die 302 out and act on the large corrugated pipe 100 to complete the cutting.

[0028] Reference Figure 5 , Attachment Figure 6 , Attachment Figure 7 , Attachment Figure 8 and attached Fig.11 , two radial slots 2041 are provided on the rotating ring body 204, and each radial slot 2041 is arranged in axial alignment with the clamping and cutting mechanism 3. A radial guide post 2042 is arranged in the radial slot 2041, and then a movable block 207 matching the radial guide post 2042 and the radial slot 2041 is arranged in the radial slot 2041, and a spring 208 is arranged between the movable block 207 and the end wall of the radial slot 2041. A permanent magnet 209 is connected to the inner end of the movable block 207 extending into the ring cover 201, and a saw blade mounting block 210 located outside the rotating ring body 204 is connected to the other end of the movable block 207, and then a radially arranged saw blade 211 is fixedly installed in the saw blade mounting block 210 by bolts.

[0029] A plurality of tile-shaped magnetic blocks 212 are fixedly arranged in an annular array on the inner wall of the ring cover 201. The permanent magnet 209 is aligned with the tile-shaped magnetic blocks 212 in the axial direction, and the end magnetic poles of each tile-shaped magnetic block 212 facing the center are arranged in the same manner. At the same time, the end magnetic poles of the permanent magnet 209 and the tile-shaped magnetic block 212 that are close to each other are arranged oppositely. At the same time, two electromagnets 213 are fixedly installed on the inner wall of the ring cover 201. Each electromagnet 213 is aligned with the clamping cutout mechanism 3 in the axial direction and is used to replace the tile-shaped magnetic block 212 at this position. Finally, in order to avoid interference between the magnetic fields of adjacent tile-shaped magnetic blocks 212 or between the tile-shaped magnetic blocks 212 and the electromagnets 213, magnetic isolation blocks 214 are also arranged between each pair. Through the above design, during the rotation of the rotating ring body 204, the permanent magnet 209 can intermittently receive the magnetic effect of the tile-shaped magnetic block 212 to move radially outward, and between two adjacent permanent magnets 209, it can move radially inward under the action of the spring 208, so that the two saw blades 211 can move radially back and forth during the rotation of the rotating ring body 204, and finally the saw teeth on the saw blades 211 can be used to saw the large bellows 100. In addition, before sawing, the two saw blades 211 can be moved radially outward to the end by the greater magnetic attraction of the electromagnet 213. At this time, the large bellows 100 can be smoothly sent between the two saw blades 211, and then the current passed into the electromagnet 213 is disconnected, so that the two saw blades 211 move radially inward under the action of the spring 208, and extend to the inside of the large bellows 100 along the incision made on the surface of the incision die 302.

[0030] When the saw blade cutting device disclosed in the present embodiment 1 is used for cutting large corrugated pipes, the conveyor belts 104 on the front and rear sides of the conveying unit 1 extend the large corrugated pipe 100 into the sawing unit 2. When the position to be cut is aligned with the clamping and cutting mechanism 3, the conveying of the large corrugated pipe 100 is suspended, and the second cylinder 306 and the first cylinder 303 are started successively, so that after the arc-shaped pressing plate 301 clamps the large corrugated pipe 100, the cutting die 302 directly cuts the position to be cut of the large corrugated pipe 100, and after the cutting is completed, the second cylinder 306 and the first cylinder 303 are controlled to reset.

[0031] Then, the large bellows 100 is transported by the conveyor belt 104 until the incision position is radially aligned with the two saw blades 211, and then the first cylinder 303 is started to clamp and fix the large bellows. After clamping and fixing, the current passed into the electromagnet 213 is cut off, and then the two saw blades 211 are radially inward and extend into the large bellows 100 through the incision under the action of the restoring force of the spring 208. Then, the driving assembly is started again to make the rotating ring body 204 rotate on the annular track 203 at a set speed. During the rotation of the annular track 203, the permanent magnet 209 is intermittently acted upon by the tile-shaped magnetic block 212 and the spring 208, so that the saw blade 211 continuously reciprocates in the radial direction to simulate the sawing process, and combined with the rotation and movement process of the saw blade 211 relative to the large bellows 100, the large bellows 100 is cut off. Example 2

[0032] Example 2 discloses a saw blade cutting device for cutting large corrugated pipes that is further improved based on the technical solution in Example 1. The similarities with Example 1 are explained again.

[0033] The improved design of this embodiment 2 is that a support transfer unit 4 for assisting the cutting and transfer of large corrugated pipes is provided on the opposite side of the conveying unit 1. Figure 1 , Attachment Figure 2 , Attachment Figure 3 and attached Fig.10 The supporting transfer unit 4 includes a bottom plate 401 arranged perpendicular to the conveying direction of the large corrugated pipe 100, a first slide rail 402 is arranged on the bottom plate 401, and then a moving platform 403 is arranged on the first slide rail 402, and a moving mechanism 404 for adjusting the position of the moving platform 403 is arranged on the bottom plate 401. The specific moving mechanism 404 can be driven by a screw rod or a belt or chain. The moving mechanism 404 in this figure adopts the form of belt drive, and a connecting block 405 connected to the belt is arranged on the moving platform 403.

[0034] A second slide rail 406 parallel to the conveying direction of the large corrugated tube 100 is provided on the upper surface of the movable platform 403, and a third cylinder 407 is provided at one end of the movable platform 403 away from the sawing unit 2. A movable frame 408 connected to the third cylinder 407 is slidably provided on the second slide rail 406, and a hollow column 409 concentrically provided with the rotating ring body 204 is fixedly connected to the side of the movable frame 408 facing the sawing unit 2. An end block 410 is provided at the outer end of the hollow column 409, and a push rod penetrating the hollow column 409 is connected to the end block 410, and a fourth cylinder 411 for driving the push rod is provided on the movable frame 408. A plurality of movable fork frames 412 are evenly arranged between the outer circumferential surfaces of the hollow column 409 and the end block 410. The two radial outer ends of the movable fork frames 412 are commonly connected to a support bar 413, and then the two radial inner ends of the movable fork frames 412 are respectively connected to the hollow column 409 and the end block 410.

[0035] During the cutting process of the large corrugated tube 100, when the large corrugated tube 100 is clamped and fixed again, the third cylinder 407 will push the movable frame 408 to its open end, and make the hollow column 409, the end block 410, the support bar 413 and the movable fork frame 412 extend into the large corrugated tube 100, and then start the fourth cylinder 411 to move the end block 410 closer to the direction of the hollow column 409 under the action of the push rod, so that the multiple support bars 413 can be synchronously expanded outward through the movable fork frame 412 until the support bars 413 contact the inner wall of the large corrugated tube 100, so that the multiple support bars 413 can support and fix the large corrugated tube 100 from the inside.

[0036] After the cutting is completed, the moving mechanism 404 is started to move the moving platform 403 perpendicular to the conveying direction of the large corrugated tube 100, so that the switched large corrugated tube 100 is offset from the uncut part. Finally, the fourth cylinder 411 is used to retract the multiple support bars 413 to release the fixing effect on this part of the large corrugated tube 100, thereby facilitating the unloading of the large corrugated tube 100 at the cut part.

[0037] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A large-scale bellows saw blade cutting device, comprising a conveying unit and a sawing unit, It is characterized in that The sawing unit includes a ring cover axially aligned with the large bellows on the conveying unit, a clamping and cutting mechanism for clamping and cutting the large bellows is arranged inside the ring cover, a rotating ring body is coaxially rotated on the side end of the ring cover away from the conveying unit, and a driving component for driving the rotating ring body is arranged on the ring cover, a radial strip opening is opened on the rotating ring body, and a movable block is connected to the radial strip opening through a spring and a radial guide column, the end of the movable block extending into the ring cover is connected to a permanent magnet, and the other end of the movable block is connected to a saw blade extending from the radial strip opening and radially arranged, a plurality of tile-shaped magnetic blocks acting with the permanent magnets are evenly spaced on the inner wall of the ring cover, and an electromagnet acting with the permanent magnet is arranged on the inner wall of the ring cover axially aligned with the clamping and cutting mechanism.

2. The large-scale corrugated pipe saw blade cutting device according to claim 1, It is characterized in that The side end of the ring cover is provided with an annular track, the rotating ring body is rotatably arranged on the annular track, the driving assembly includes a driving motor and a gear, and the gear is arranged on the motor shaft of the driving motor, and the rotating ring body is provided with a gear ring meshing with the gear.

3. The large-scale corrugated pipe saw blade cutting device according to claim 1, It is characterized in that The clamping and cutting mechanism includes an arc-shaped pressing plate arranged in the ring cover and a second cylinder driving the arc-shaped pressing plate to move radially. The arc-shaped pressing plate is provided with a cutting die head, and the arc-shaped pressing plate is provided with a first cylinder pushing the cutting die head toward the large corrugated pipe.

4. The large-scale corrugated pipe saw blade cutting device according to claim 1, It is characterized in that The outer end of the movable block extending out of the radial blade opening is connected to a saw blade mounting block, and the saw blade is detachably mounted on the saw blade mounting block through a connecting piece.

5. The large-scale corrugated pipe saw blade cutting device according to claim 1, It is characterized in that Magnetic isolation blocks are arranged between two adjacent tile-shaped magnetic blocks and between a tile-shaped magnetic block and the electromagnet.

6. The large-scale corrugated pipe saw blade cutting device according to claim 1, It is characterized in that The ends of the plurality of tile-shaped magnetic blocks close to the electromagnet are all arranged with opposite magnetic poles.

7. The large-scale corrugated pipe saw blade cutting device according to claim 1, It is characterized in that The conveying unit includes two parallel side plates in front and back, with conveying wheels arranged at both ends of the side plates, and a conveying motor is connected to the end of one of the conveying wheels, a conveying belt is arranged between the two conveying wheels, and the two conveying belts are arranged to contact the side surface of the lower end of the large corrugated pipe at a certain angle.

8. The large-scale corrugated pipe saw blade cutting device according to claim 1, It is characterized in that It also includes a support transfer unit arranged on the opposite side of the conveying unit, the support transfer unit includes a movable platform arranged to move perpendicular to the conveying direction of the large corrugated pipe, a third cylinder and a movable frame are arranged on the movable platform, the third cylinder is connected to the movable frame to realize the movement of the movable frame parallel to the conveying direction of the large corrugated pipe, and the movable frame is provided with a tightening component that opens or contracts synchronously at one end facing the large corrugated pipe.

9. The large-scale corrugated pipe saw blade cutting device according to claim 8, It is characterized in that The tightening assembly is a hollow column that is concentrically arranged with the ring cover and fixedly connected to the movable frame. An end block is arranged at the outer end of the hollow column. The movable frame is provided with a fourth cylinder for enabling the end block to approach or move away from the hollow column. A plurality of movable fork frames are evenly connected to the periphery of the hollow column and the end block, and a support bar is connected to the radial outer end of each movable fork frame.

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