CN217372550U

CN217372550U - Annular cutting machine for cutting pipes

Info

Publication number: CN217372550U
Application number: CN202121351161.7U
Authority: CN
Inventors: 衡传远; 衡传坤
Original assignee: Zhangjiagang Huade Machinery Technology Co ltd
Current assignee: Zhangjiagang Huade Machinery Technology Co ltd
Priority date: 2021-06-15
Filing date: 2021-06-15
Publication date: 2022-09-06
Anticipated expiration: 2031-06-15

Abstract

The utility model discloses an annular cutting machine for cutting pipes, which comprises a frame, a cutting chamber and two first brackets, wherein a cutting chamber cover body is arranged on the frame in a sliding manner; the cutting station component comprises a feeding rotary disk, a discharging rotary disk and a cycloid pinwheel speed reducing motor, a feeding bracket, a feeding port and a discharging port are further arranged on the cutting chamber cover body, the feeding rotary disk is rotatably arranged in the feeding port, the discharging rotary disk is rotatably arranged in the discharging port, a cutting knife group is arranged between the feeding rotary disk and the discharging rotary disk, the cycloid pinwheel speed reducing motor is arranged outside the cutting chamber cover body, and an output shaft of the cycloid pinwheel speed reducing motor is connected with the feeding rotary disk through a transmission component and can drive the feeding rotary disk to rotate; the material loading presss from both sides dress subassembly includes that the symmetry sets up outside the feed inlet and can relative slip's material loading epistasis anchor clamps and material loading inferiority anchor clamps, and the unloading presss from both sides dress subassembly includes that the symmetry sets up outside the discharge gate and can relative slip's unloading epistasis anchor clamps and unloading inferiority anchor clamps, an object of the utility model is to provide an annular cutting machine for cutting tubular product can improve cutting efficiency.

Description

Annular cutting machine for cutting pipes

Technical Field

The utility model relates to a cutting machine technical field especially relates to an annular cutting machine for cutting tubular product.

Background

At present, the application range of PVC/ABS/PE pipelines is more and more extensive. In different places, because the mode of use is different, the size length of pipeline also along with changing, utilize annular cutting machine's cutting knife to rotate at a high speed and pipeline contact to realize the cutting to the PVC pipeline. But the cutting efficiency of the existing annular cutting machine is low. Therefore, for a circular cutting machine for cutting pipes, the problem to be solved is that the cutting efficiency of the existing circular cutting machine is low.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects, the utility model aims to provide an annular cutting machine for cutting tubular product, simple structure can effectively improve cutting efficiency simultaneously.

In order to achieve the above purpose, the utility model discloses a technical scheme is: an annular cutting machine for cutting pipes comprises a rack, a cutting chamber and two first brackets symmetrically arranged on the rack, wherein the cutting chamber comprises a cutting chamber cover body, a cutting station assembly, a feeding clamping assembly and a discharging clamping assembly; the cutting station component comprises a feeding rotary disk, a discharging rotary disk and a cycloidal pin wheel speed reduction motor, a feeding bracket, a feeding port and a discharging port are further arranged on the cutting chamber cover body, the feeding rotary disk is rotatably arranged in the feeding port, the discharging rotary disk is rotatably arranged in the discharging port, a cutting knife group for cutting a pipeline is arranged between the feeding rotary disk and the discharging rotary disk, the cycloidal pin wheel speed reduction motor is arranged outside the cutting chamber cover body, and an output shaft of the cycloidal pin wheel speed reduction motor is connected with the feeding rotary disk through a transmission component and can drive the feeding rotary disk to rotate; the feeding clamping assembly comprises a feeding upper clamp and a feeding lower clamp which are symmetrically arranged outside the feeding port and can slide relatively, and the discharging clamping assembly comprises a discharging upper clamp and a discharging lower clamp which are symmetrically arranged outside the discharging port and can slide relatively.

The utility model relates to an annular cutting machine for cutting pipes, which has the advantages that a user manually feeds materials, a pipeline penetrates through a cutting chamber, and two ends of the pipeline are supported by two first brackets; the user may also choose to place the tray on one of the first carriages at the infeed carriage, the infeed, and the pipe running through the cutting chamber and supported by both first carriages, the infeed carriage, the tray, further stabilizing the pipe. The feeding clamping assembly and the discharging clamping assembly clamp two ends of a pipeline positioned outside the cutting chamber, so that the pipeline is kept stable during cutting. The cycloidal pin wheel speed reduction motor is started to drive the feeding rotary disc, the discharging rotary disc and the cutting knife group to rotate, and the cutting knife group cuts the pipeline. According to the different requirements of users on the size and the length of the pipeline, the feeding clamping assembly and the discharging clamping assembly can be adjusted to clamp the pipeline, and the cutting chamber cover body can slide leftwards (rightwards) along the feeding direction of the rack. The cutting machine of this kind of structure, simple structure can effectively improve cutting efficiency simultaneously. The rotating modes of the feeding rotary disc and the discharging rotary disc are the prior art and are not described more here.

As a further improvement, the cutting chamber cover body includes integrated into one piece's base, advance the tube sheet, go out the tube sheet, the roof, preceding door frame, back door frame and garbage collection fill, the feeding bracket sets up on the base, the feed inlet sets up on advancing the tube sheet, the discharge gate sets up on going out the tube sheet, cycloid pinwheel gear motor sets up on the roof, it is provided with the door plant that has transparent window all to rotate on preceding door frame and the back door frame, the frame still is provided with the displacement cylinder on following its direction of feed, the telescopic link of displacement cylinder is connected and can drive the base horizontal slip through pushing away the seat with the base. The rotation of the door panel is prior art and will not be described in greater detail herein. The feed tray further supports the conduit. The transparent window is convenient for users to observe the cutting condition of the pipeline. The waste collecting hopper collects waste generated by cutting the pipeline. The displacement cylinder is opened to drive the base to slide left and right, so that the cutting chamber cover body slides left and right.

As a further improvement, the frame comprises an integrally formed frame and a lower margin and a displacement cylinder, the frame is arranged on the frame, the frame is also provided with a guide rail, the base is also provided with a roller, and the roller is embedded into the guide rail and can slide left and right on the guide rail. The ground feet play a supporting role. The roller and the guide rail further keep the cutting chamber cover stable when moving.

As a further improvement of the utility model, the electric cabinet frame further comprises an electric cabinet arranged on the frame. And a user controls the electric cabinet to open or close the cutting machine.

As a further improvement of the utility model, the cutting knife group comprises a first supporting rod, a second supporting rod, a third supporting rod, a fourth supporting rod, a speed reducer, a cutting motor and a first supporting rod, the second bracing piece, the third bracing piece, the fourth bracing piece all sets up between feeding gyration dish and ejection of compact gyration dish, the speed reducer passes through feed fixed plate and third bracing piece, fourth bracing piece rigid coupling and the output shaft of speed reducer are connected with adjusting screw and can drive its rotation, the cutting motor passes through the motor board and rotates with the second bracing piece and be connected and adjusting square and adjusting screw threaded connection on the motor board, the output shaft and the first synchronizing wheel of cutting motor are connected and can drive its rotation, still rotate the both ends that are provided with pivot and pivot on the motor board respectively with the second synchronizing wheel, the blade is connected, the cover is equipped with the hold-in range between first synchronizing wheel and the second synchronizing wheel. The rotation mode of the rotating shaft is the prior art, and is not described more than here. After the cycloidal-pin gear speed reduction motor drives the feeding rotary disc to rotate, the discharging rotary disc, the first supporting rod, the second supporting rod, the third supporting rod and the fourth supporting rod can be driven to rotate together. The cutting motor is started to drive the first synchronous wheel to rotate, so that the synchronous belt, the second synchronous wheel and the blade rotate, and the blade rotates to cut the pipeline. The speed reducer is fixedly connected with the third supporting rod and the fourth supporting rod through the feed fixing plate, and the cutting motor is rotatably arranged on the second supporting rod through the motor plate, so that the speed reducer and the cutting motor can rotate together; because the adjusting square block of the cutting motor is in threaded connection with the adjusting screw rod, the speed reducer is started to drive the adjusting screw rod to rotate, the adjusting square block can slide up and down, the cutting motor can rotate on the second supporting rod, and the annular cutting pipeline with the blades is achieved.

As a further improvement, the utility model also comprises a balancing weight which is connected with the first supporting rod and the third supporting rod through a balancing weight fixing plate. The speed reducer and the cutting motor are kept stable during rotation.

As a further improvement, the utility model discloses a feed fixed plate sets up and is provided with fixed hoop and fixed bolster on the feed fixed plate on the speed reducer, and fixed hoop cover is established on the third bracing piece, and the fixed bolster cover is established on the fourth bracing piece, and the motor board setting is provided with the roating seat on the cutting motor and on the motor board, and the roating seat cover is established on the second bracing piece and can use the second bracing piece to do the rotation as the center pin.

As a further improvement, the transmission assembly comprises a gear rotary disk and a single-row chain, the gear rotary disk is arranged on the feeding rotary disk, the output shaft of the cycloidal pin gear speed reduction motor is connected with the single-row chain wheel and can drive the single-row chain wheel to rotate, and the single-row chain is wound between the gear rotary disk and the single-row chain wheel. The cycloidal pin wheel speed reduction motor is started to drive the single-row chain wheel to rotate, so that the single-row chain and the gear rotary disc rotate, and the feeding rotary disc, the discharging rotary disc and the cutting knife group are driven to rotate.

As a further improvement, the utility model discloses a still set up the upper cylinder of material loading outside the feed inlet including the symmetry, the lower cylinder of material loading and symmetry set up the upper cylinder of unloading outside the discharge gate, the lower cylinder of unloading, the telescopic link of the upper cylinder of material loading is connected with the upper anchor clamps of material loading and can drive its and slide from top to bottom, the telescopic link of the lower cylinder of material loading is connected with the lower anchor clamps of material loading and can drive its and slide from top to bottom, the telescopic link of the upper cylinder of unloading is connected with the upper anchor clamps of unloading and can drive its and slide from top to bottom, the telescopic link of the lower cylinder of unloading is connected with the lower anchor clamps of unloading and can drive its and slide from top to bottom. And the feeding upper cylinder and the feeding lower cylinder are started to drive the feeding upper clamp and the feeding lower clamp to slide relatively to clamp the pipeline. And the blanking upper cylinder and the blanking lower cylinder are started to drive the blanking upper clamp and the blanking lower clamp to slide relatively to clamp the pipeline. The adjustment can be carried out according to different sizes of pipelines.

Drawings

FIG. 1 is a view showing the structure of the whole apparatus of the present embodiment;

FIG. 2 is a view showing a structure of a cutting chamber cover according to the present embodiment;

FIG. 3 is a block diagram of the cutting station assembly of the present embodiment;

FIG. 4 is a view showing a structure of a cutter unit according to the present embodiment;

FIG. 5 is a structural diagram of the loading clamping assembly of the present embodiment;

fig. 6 is a structural view of the blanking clamp assembly of the present embodiment.

In the figure:

1. a first bracket; 2. a frame; 21. a frame; 22. ground feet;

3. a cutting chamber cover body; 31. a base; 32. a tube inlet plate; 33. discharging the tube plate; 34. a top plate; 35. a waste collection hopper; 36. a feed inlet; 37. a discharge port;

4. a cutting station assembly; 41. a feeding rotary disc; 42. a discharging rotary disc; 43. a cycloidal-pin gear speed reducing motor;

5. a feeding clamping assembly; 51. feeding an upper clamp; 52. a feeding lower clamp; 53. a feeding upper cylinder; 54. a feeding lower cylinder;

6. the blanking clamping assembly; 61. blanking an upper clamp; 62. blanking lower clamps; 63. a blanking upper cylinder; 64. blanking a lower cylinder;

7. a cutting knife group; 71. a first support bar; 72. a second support bar; 73. a third support bar; 74. a fourth support bar; 75. a speed reducer; 76. cutting the motor;

8. a transmission assembly; 81. a gear rotating disc; 82. a single row of chains;

9. a feed carriage; 10. a door panel; 11. a guide rail; 12. a roller; 13. a feed fixing plate; 131. a fixing hoop; 132. a fixed bracket; 14. adjusting the screw rod; 15. a motor plate; 151. adjusting the square block; 152. a rotating base; 16. a blade; 17. a synchronous belt; 18. a counterweight block; 19. an electric cabinet; 20. and a displacement cylinder.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.

Referring to fig. 1-6, the annular cutting machine for cutting pipes in the present embodiment includes a frame 2, a cutting chamber, and two first brackets 1 symmetrically disposed on the frame 2, the cutting chamber includes a cutting chamber cover 3, a cutting station assembly 4, a feeding clamping assembly 5, and a discharging clamping assembly 6, the cutting chamber cover 3 is slidably disposed on the frame 2 along a feeding direction of the frame 2, and the two first brackets 1 are located on left and right sides of the cutting chamber cover 3; the cutting station component 4 comprises a feeding rotary disk 41, a discharging rotary disk 42 and a cycloid-pin gear speed reducing motor 43, the cutting chamber cover body 3 is further provided with a feeding bracket 9, a feeding port 36 and a discharging port 37, the feeding rotary disk 41 is rotatably arranged in the feeding port 36, the discharging rotary disk 42 is rotatably arranged in the discharging port 37, a cutting knife group 7 for cutting a pipeline is arranged between the feeding rotary disk 41 and the discharging rotary disk 42, the cycloid-pin gear speed reducing motor 43 is arranged outside the cutting chamber cover body 3, and an output shaft of the cycloid-pin gear speed reducing motor 43 is connected with the feeding rotary disk 41 through a transmission component 8 and can drive the feeding rotary disk 41 to rotate; the feeding clamping assembly 5 comprises a feeding upper clamp 51 and a feeding lower clamp 52 which are symmetrically arranged outside the feeding port 36 and can slide relatively, and the discharging clamping assembly 6 comprises a discharging upper clamp 61 and a discharging lower clamp 62 which are symmetrically arranged outside the discharging port 37 and can slide relatively.

The user feeds materials manually, the pipeline penetrates through the cutting chamber, and two ends of the pipeline are supported by two first brackets 1; the user may also choose to place the tray on the feeding carriage 9, one of the first carriages 1 at the feeding, with the pipe running through the cutting chamber and supported by both first carriages 1, feeding carriages 9, the tray, further stabilizing the pipe. The feeding clamping assembly 5 and the discharging clamping assembly 6 clamp two ends of a pipeline positioned outside the cutting chamber, so that the pipeline is kept stable during cutting. The cycloidal pin gear speed reducing motor 43 is started to drive the feeding rotary disk 41, the discharging rotary disk 42 and the cutting knife group 7 to rotate, and the cutting knife group 7 cuts the pipeline. According to different requirements of users on the size and the length of the pipeline, the feeding clamping assembly 5 and the discharging clamping assembly 6 can be adjusted to clamp the pipeline, and the cutting chamber cover body 3 can slide leftwards (rightwards) along the feeding direction of the rack 2. The cutting machine with the structure has a simple structure, and can effectively improve the cutting efficiency. The feeding rotary disk 41 and the discharging rotary disk 42 are all in the prior art, and will not be described in more detail here.

The cutting chamber cover body 3 of this embodiment includes integrated into one piece's base 31, advance tube sheet 32, go out tube sheet 33, roof 34, preceding door frame, back door frame and garbage collection fill 35, feeding bracket 9 sets up on base 31, feed inlet 36 sets up on advancing tube sheet 32, discharge gate 37 sets up on going out tube sheet 33, cycloid pinwheel gear motor 43 sets up on roof 34, all rotate on preceding door frame and the back door frame and be provided with the door plant 10 that has transparent window, frame 2 still is provided with displacement cylinder 20 along its pay-off direction, the telescopic link of displacement cylinder 20 is connected with base 31 through pushing away the seat and can drive base 31 horizontal slip. The manner of rotation of the door panel 10 is conventional and will not be described in greater detail herein. The feed carriage 9 further supports the pipe. The transparent window is convenient for users to observe the cutting condition of the pipeline. The scrap collecting hopper 35 collects scrap generated by cutting the pipe. The displacement cylinder 20 is opened to drive the base 31 to slide left and right, so that the cutting chamber cover body 3 slides left and right.

The frame 2 of this embodiment includes that integrated into one piece's frame 21 and lower margin 22 and displacement cylinder 20 set up on frame 21, still is provided with guide rail 11 on the frame 21, still is provided with gyro wheel 12 on the base 31, and gyro wheel 12 imbeds guide rail 11 and gyro wheel 12 can slide on guide rail 11 from side to side. The ground feet 22 play a supporting role. The rollers 12 and the guide rails 11 further stabilize the cutting booth housing 3 during movement.

The present embodiment further includes an electric cabinet 19 provided on the rack frame 21. And the user controls the electric cabinet 19 to realize the opening or closing of the cutting machine.

The cutting knife tackle 7 of this embodiment includes a first supporting rod 71, a second supporting rod 72, a third supporting rod 73, a fourth supporting rod 74, a speed reducer 75 and a cutting motor 76, wherein the first supporting rod 71, the second supporting rod 72, the third supporting rod 73 and the fourth supporting rod 74 are all disposed between the feeding rotary disk 41 and the discharging rotary disk 42, the speed reducer 75 is fixedly connected with the third supporting rod 73 and the fourth supporting rod 74 through the feeding fixing plate 13, an output shaft of the speed reducer 75 is connected with the adjusting screw 14 and can drive the same to rotate, the cutting motor 76 is rotatably connected with the second supporting rod 72 through the motor plate 15, an adjusting block 151 on the motor plate 15 is in threaded connection with the adjusting screw 14, an output shaft of the cutting motor 76 is connected with the first synchronizing wheel and can drive the same to rotate, a rotating shaft is further rotatably disposed on the motor plate 15, and two ends of the rotating shaft are respectively connected with the second synchronizing wheel and the knife blade 16, a synchronous belt 17 is sleeved between the first synchronous wheel and the second synchronous wheel. The rotation mode of the rotating shaft is the prior art, and is not described more than here. After the cycloidal-pin gear speed-reducing motor 43 drives the feeding rotary disk 41 to rotate, the discharging rotary disk 42, the first support rod 71, the second support rod 72, the third support rod 73 and the fourth support rod 74 are driven to rotate together. The cutting motor 76 is turned on to rotate the first synchronous pulley, so that the synchronous pulley 17, the second synchronous pulley and the blade 16 rotate, and the blade 16 rotates to cut the pipeline. Because the speed reducer 75 is fixedly connected with the third support rod 73 and the fourth support rod 74 through the feed fixing plate 13, and the cutting motor 76 is rotatably arranged on the second support rod 72 through the motor plate 15, the speed reducer 75 and the cutting motor 76 can also rotate together at the moment; since the adjusting block 151 of the cutting motor 76 is in threaded connection with the adjusting screw 14, the speed reducer 75 is opened to drive the adjusting screw 14 to rotate, so that the adjusting block 151 can slide up and down, and the cutting motor 76 can rotate on the second supporting rod 72, thereby realizing the annular cutting of the pipeline by the blade 16.

The embodiment further includes a weight block 18, and the weight block 18 is connected to the first support rod 71 and the third support rod 73 through a weight fixing plate. The speed reducer 75 and the cutter motor 76 are kept stable during rotation.

The feeding fixing plate 13 of this embodiment is disposed on the speed reducer 75, and the feeding fixing plate 13 is provided with a fixing hoop 131 and a fixing support 132, the fixing hoop 131 is sleeved on the third support rod 73, the fixing support 132 is sleeved on the fourth support rod 74, the motor plate 15 is disposed on the cutting motor 76 and the motor plate 15 is provided with a rotary seat 152, and the rotary seat 152 is sleeved on the second support rod 72 and can rotate by using the second support rod 72 as a central axis.

The transmission assembly 8 of the embodiment comprises a gear rotary disc 81 and a single row chain 82, wherein the gear rotary disc 81 is arranged on the feeding rotary disc 41, an output shaft of the cycloid pin gear speed reducing motor 43 is connected with the single row chain wheel and can drive the single row chain wheel to rotate, and the single row chain 82 is wound between the gear rotary disc 81 and the single row chain wheel. The cycloidal-pin gear speed-reducing motor 43 is turned on to drive the single-row chain wheel to rotate, so that the single-row chain 82 and the gear rotary disk 81 rotate, and further the feeding rotary disk 41, the discharging rotary disk 42 and the cutting knife group 7 are driven to rotate.

The feeding device further comprises a feeding upper cylinder 53, a feeding lower cylinder 54, a discharging upper cylinder 63 and a discharging lower cylinder 64 which are symmetrically arranged outside the feeding hole 36, telescopic rods of the feeding upper cylinder 53 are connected with the feeding upper fixture 51 and can drive the feeding upper fixture to slide up and down, telescopic rods of the feeding lower cylinder 54 are connected with the feeding lower fixture 52 and can drive the feeding lower fixture to slide up and down, telescopic rods of the discharging upper cylinder 63 are connected with the discharging upper fixture 61 and can drive the discharging upper fixture to slide up and down, and telescopic rods of the discharging lower cylinder 64 are connected with the discharging lower fixture 62 and can drive the discharging lower fixture to slide up and down. And the feeding upper cylinder 53 and the feeding lower cylinder 54 are started to drive the feeding upper clamp 51 and the feeding lower clamp 52 to slide relatively to clamp the pipeline. And the blanking upper cylinder 63 and the blanking lower cylinder 64 are started to drive the blanking upper clamp 61 and the blanking lower clamp 62 to slide relatively to clamp the pipeline. The adjustment can be carried out according to different sizes of pipelines. The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the above embodiments is to let the person skilled in the art understand the contents of the present invention and implement the present invention, which can not limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.

Claims

1. An annular cutting machine for cutting tubes, characterized in that: the cutting machine comprises a rack (2), a cutting chamber and two first brackets (1) symmetrically arranged on the rack (2), wherein the cutting chamber comprises a cutting chamber cover body (3), a cutting station assembly (4), a feeding clamping assembly (5) and a discharging clamping assembly (6), the cutting chamber cover body (3) is arranged on the rack (2) in a sliding mode along the feeding direction of the rack (2), and the two first brackets (1) are located on the left side and the right side of the cutting chamber cover body (3); the cutting station component (4) comprises a feeding rotary disk (41), a discharging rotary disk (42) and a cycloid needle wheel speed reducing motor (43), a feeding bracket (9), a feeding port (36) and a discharging port (37) are further arranged on the cutting chamber cover body (3), the feeding rotary disk (41) is rotatably arranged in the feeding port (36), the discharging rotary disk (42) is rotatably arranged in the discharging port (37), a cutting knife group (7) for cutting a pipeline is arranged between the feeding rotary disk (41) and the discharging rotary disk (42), the cycloid needle wheel speed reducing motor (43) is arranged outside the cutting chamber cover body (3), and an output shaft of the cycloid needle wheel speed reducing motor (43) is connected with the feeding rotary disk (41) through a transmission component (8) and can drive the cycloid needle wheel speed reducing motor to rotate; the feeding clamping assembly (5) comprises a feeding upper clamp (51) and a feeding lower clamp (52) which are symmetrically arranged outside the feeding port (36) and can slide relatively, and the discharging clamping assembly (6) comprises a discharging upper clamp (61) and a discharging lower clamp (62) which are symmetrically arranged outside the discharging port (37) and can slide relatively.

2. Annular cutting machine for cutting tubes according to claim 1, characterized in that: cutting chamber cover body (3) are including integrated into one piece's base (31), advance tube sheet (32), go out tube sheet (33), roof (34), preceding door frame, back door frame and garbage collection fill (35), feeding bracket (9) set up on base (31), feed inlet (36) set up on advancing tube sheet (32), discharge gate (37) set up on going out tube sheet (33), cycloid pinwheel gear reduction motor (43) set up on roof (34), all rotate on preceding door frame and the back door frame and be provided with door plant (10) that have transparent window, frame (2) still are provided with displacement cylinder (20) along its pay-off direction, the telescopic link of displacement cylinder (20) is connected and can drive base (31) horizontal slip through pushing away the seat with base (31).

3. Annular cutting machine for cutting tubes according to claim 2, characterized in that: frame (2) include integrated into one piece's frame (21) and lower margin (22) and displacement cylinder (20) set up on frame (21), still be provided with guide rail (11) on frame (21), still be provided with gyro wheel (12) on base (31), gyro wheel (12) embedding guide rail (11) and gyro wheel (12) can be on guide rail (11) horizontal slip.

4. Annular cutting machine for cutting tubes according to claim 3, characterized in that: also comprises an electric cabinet (19) arranged on the frame (21).

5. Annular cutting machine for cutting tubes according to claim 1, characterized in that: the cutting knife group (7) comprises a first supporting rod (71), a second supporting rod (72), a third supporting rod (73), a fourth supporting rod (74), a speed reducer (75) and a cutting motor (76), wherein the first supporting rod (71), the second supporting rod (72), the third supporting rod (73) and the fourth supporting rod (74) are all arranged between the feeding rotary disk (41) and the discharging rotary disk (42), the speed reducer (75) is fixedly connected with the third supporting rod (73) and the fourth supporting rod (74) through a feeding fixing plate (13), an output shaft of the speed reducer (75) is connected with the adjusting screw (14) and can drive the adjusting screw to rotate, the cutting motor (76) is rotatably connected with the second supporting rod (72) through a motor plate (15), an adjusting square block (151) on the motor plate (15) is in threaded connection with the adjusting screw (14), an output shaft of the cutting motor (76) is connected with a first synchronous wheel and can drive the cutting motor to rotate, the motor board (15) is gone up still to rotate the both ends that are provided with pivot and be connected with second synchronizing wheel, blade (16) respectively, the cover is equipped with hold-in range (17) between first synchronizing wheel and the second synchronizing wheel.

6. Annular cutting machine for cutting tubes according to claim 5, characterized in that: the counterweight block (18) is connected with the first supporting rod (71) and the third supporting rod (73) through counterweight fixing plates.

7. Annular cutting machine for cutting tubes according to claim 5, characterized in that: the utility model discloses a cutting machine, including feeding fixed plate (13), fixed hoop (131) and fixed bolster (132), fixed hoop (131) cover is established on speed reducer (75) and feeding fixed plate (13) is provided with fixed hoop (131), fixed hoop (131) cover is established on third bracing piece (73), fixed bolster (132) cover is established on fourth bracing piece (74), motor board (15) set up on cutting motor (76) and be provided with roating seat (152) on motor board (15), roating seat (152) cover is established on second bracing piece (72) and can use second bracing piece (72) to do the rotation as the center pin.

8. Annular cutting machine for cutting tubes according to claim 1, characterized in that: the transmission assembly (8) comprises a gear rotary disc (81) and a single row of chains (82), the gear rotary disc (81) is arranged on the feeding rotary disc (41), an output shaft of the cycloid pin gear speed reducing motor (43) is connected with the single row of chain wheels and can drive the single row of chain wheels to rotate, and the single row of chains (82) are wound between the gear rotary disc (81) and the single row of chain wheels.

9. Annular cutting machine for cutting tubes according to claim 1, characterized in that: still set up material loading upper cylinder (53), the lower cylinder of material loading (54) and symmetry outside discharge gate (37) and set up unloading upper cylinder (63), the lower cylinder of unloading (64) including the symmetry outside feed inlet (36), the telescopic link of material loading upper cylinder (53) is connected with material loading upper jig (51) and can drives its and slide from top to bottom, the telescopic link of material loading lower cylinder (54) is connected with material loading lower jig (52) and can drives its and slide from top to bottom, the telescopic link of unloading upper cylinder (63) is connected with unloading upper jig (61) and can drives its and slide from top to bottom, the telescopic link of unloading lower cylinder (64) is connected with unloading lower jig (62) and can drives its and slide from top to bottom.