Operating method of plastic pipe cutting device for extruder

Abstract

The invention discloses an operating method of a plastic pipe cutting device for an extruder, and relates to the field of cutting devices. The cutting device comprises a plurality of groups of conveying roller assemblies and cutting devices with the same structure. The plurality of groups of conveying roller assemblies are symmetrically distributed on both sides of the cutting device and are used for conveying the plastic pipe. The cutting device comprises a base, a driving assembly, a cutting assembly and a track assembly. By arranging the conveying roller assembly and the cutting device, a first track and a third track are symmetrically arranged along the center line of the second track, a first cutter gradually contacts the plastic pipe and cuts into the plastic pipe, and finally rotates to cut the plastic pipe, and the first cutter cuts and expands the inner diameter of the plastic pipe end, and the second cutter cuts the outer wall of the end of the adjacent plastic pipe, and finally obtains a plastic pipe with two ends that is easy to connect and will not be misaligned, thereby solving the problem that the existing plastic pipe ends are flat, workers are prone to misalignment when winding tape, and the axes of two adjacent plastic pipes are not coaxial, forming an angle, so that the adjacent plastic pipes after winding are bent.

Description

Technical Field

[0001] The invention relates to the field of cutting devices, in particular to an operating method of a plastic pipe cutting device for an extruder. Background Art

[0002] After the existing plastic pipes are produced, they need to be cut into fixed lengths and then packaged for delivery. When in use, customers can wrap multiple plastic pipes with tape according to the required length of the pipe. However, it is found that the ends of the existing plastic pipes are flat, and workers are prone to misalignment when wrapping the tape. The axes of the two adjacent plastic pipes are not coaxial, forming an angle, which causes the adjacent plastic pipes to bend after wrapping. Therefore, it is necessary to produce a plastic pipe with easy connection at both ends and no misalignment (the inner diameter of one end is enlarged and the outer diameter of the other end is reduced, so that the plastic pipe can be inserted into another adjacent plastic pipe. The specific structure is as follows Figure 8 As shown), a device for making this plastic pipe has been developed to solve the above problems. Summary of the Invention

[0003] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0004] A method for operating a plastic pipe cutting device for an extruder, comprising multiple groups of conveying roller assemblies with identical structures and a cutting device, wherein the multiple groups of conveying roller assemblies are symmetrically distributed on both sides of the cutting device and are used to convey plastic pipes. The cutting device comprises a base, a drive assembly, a cutting assembly, and a track assembly, wherein the drive assembly is mounted on the base and is used to drive the cutting assembly to rotate, and the track assembly is located inside the base, wherein the cutting assembly moves along the track assembly and cuts the plastic pipe and cuts the ends of two adjacent plastic pipes into the shape required by the customer.

[0005] The drive assembly has two groups and is symmetrically arranged, including a No. 1 motor installed on the base, the output shaft of the No. 1 motor is connected to gear 1, the gear 1 is engaged with the ring gear, and the ring gear is rotatably connected to the end face of the track assembly.

[0006] Preferably, the cutting assembly includes a connecting block installed on the inner side of the gear ring, and the connecting block is provided with two symmetrical support rods and a No. 2 motor. The other ends of the two support rods pass through the support frame and are covered with a spring. The upper and lower ends of the spring are respectively connected to the support frame and the stop block at the end of the support rod, and the lower end of the support frame is rotatably connected to cutter one.

[0007] Preferably, a turbine is provided at one end of the cutter, a slide groove is installed on the side of the support frame, a sliding connection end in the slide groove is a "T"-shaped slider, the upper end of the slider is rotatably connected to a roller, the roller abuts the track assembly, a rack is connected to the side of the slider, the rack is engaged with the gear column, and one end of the gear column is connected to the output shaft of the No. 2 motor.

[0008] Preferably, the lower end of the gear column is connected to a rod, the lower end of the rod is connected to a worm, the worm is installed in the support frame and its lower end is engaged with the turbine, the support frame is provided with a clearance groove, the rod moves in the clearance groove, and the lower end of the support frame is also provided with a cutter 2.

[0009] Preferably, the track assembly includes a base plate installed on a base, the side of the base plate is rotatably connected to the gear ring, a second track is provided on the base plate, and the second track is provided with a first track and a third track symmetrically arranged along its center line on both sides, the second track is inscribed in the first track and the third track, and the second track is concentrically arranged with the plastic pipe at the cut section.

[0010] Preferably, the conveying roller assembly includes a stand, on which two structurally symmetrical conveying rollers are rotatably connected.

[0011] Beneficial effects of the present invention: The present invention conveys and cuts a long plastic pipe into the shape required by the customer by setting a conveying roller assembly and a cutting device. Specifically, the first track and the third track are symmetrically arranged along the center line of the second track, and the two rollers respectively abut the first track and the third track. As the cutting assembly rotates, the cutter gradually contacts the plastic pipe and cuts into the plastic pipe, and finally rotates to cut the plastic pipe. By setting the rack movement, the slider is driven to move in the slide groove until the rollers on the two cutting assemblies are both located on the inner wall of the second track, and the worm is set to rotate to drive the turbine Rotate, so that cutter one rotates until the angle with the support frame is 90 degrees, and then motor one starts, driving the two sets of drive components to rotate, so that cutter one cuts the end of the plastic tube to expand the inner diameter, and cutter two cuts the outer wall of the end of the adjacent plastic tube, and finally obtains a plastic tube with an enlarged inner diameter at one end and a reduced outer diameter at the other end, so that the plastic tube can be inserted into another adjacent plastic tube, solving the problem that the ends of the existing plastic tubes are flat, workers are easily misaligned when wrapping the tape, and the axes of the two adjacent plastic tubes are not coaxial, forming an angle, which causes the adjacent plastic tubes to bend after wrapping. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the present invention.

[0013] Figure 2 It is a schematic structural diagram of the cutting device in the present invention.

[0014] Figure 3 Schematic diagram of the structure of the track assembly at different angles in the present invention.

[0015] Figure 4 It is a structural schematic diagram of the cutting component in the present invention.

[0016] Figure 5Schematic diagram of the structure of the support frame in the present invention.

[0017] Figure 6 Schematic diagram of the connection between the insertion rod and the gear column in the present invention.

[0018] Figure 7 Schematic diagram of the structure of the cutter 1 in the present invention.

[0019] Figure 8 Schematic diagram of the structure of the plastic tube in the present invention.

[0020] Among them, 1- conveyor roller assembly, 2- cutting device, 3- stand, 4- conveyor roller, 5- base, 6- drive assembly, 7- cutting assembly, 8- track assembly, 9- motor No. 1, 10- gear 1, 11- ring gear, 12- connecting block, 13- support rod, 14- support frame, 15- spring, 16- stopper, 17- cutter 1, 18- turbine, 19- slider, 20- roller, 21- rack, 22- gear column, 23- motor No. 2, 24- worm, 25- cutter 2, 26- base plate, 27- second track, 28- first track, 29- third track, 30- slide groove, 31- plug rod. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] like Figures 1 to 8 As shown, an operating method of a plastic pipe cutting device for an extruder includes multiple groups of conveying roller assemblies 1 and cutting devices 2 with the same structure. The multiple groups of conveying roller assemblies 1 are symmetrically distributed on both sides of the cutting device 2 and are used to convey plastic pipes. The cutting device 2 includes a base 5, a driving assembly 6, a cutting assembly 7 and a track assembly 8. The driving assembly 6 is installed on the base 5 and is used to drive the cutting assembly 7 to rotate. The track assembly 8 is located inside the base 5. The cutting assembly 7 moves along the track assembly 8 and cuts the plastic pipe and cuts the two adjacent plastic pipe ends after cutting into the shape required by the customer.

[0023] In this embodiment, the drive assembly 6 has two groups and is symmetrically arranged, including a No. 1 motor 9 installed on the base 5, the output shaft of the No. 1 motor 9 is connected to the gear 10, the gear 10 is engaged with the ring gear 11, and the ring gear 11 is rotatably connected to the end face of the track assembly 8.

[0024] In this embodiment, the cutting assembly 7 includes a connecting block 12 installed on the inner side of the ring gear 11, and two symmetrical support rods 13 and a No. 2 motor 23 are provided on the connecting block 12. The other ends of the two support rods 13 pass through the support frame 14 and are covered with a spring 15. The upper and lower ends of the spring 15 are respectively connected to the support frame 14 and the stop block 16 at the end of the support rod 13. The lower end of the support frame 14 is rotatably connected to the cutter 17.

[0025] In this embodiment, a turbine 18 is provided at the end of the cutter 17, a slide groove 30 is installed on the side of the support frame 14, and a sliding connection end in the slide groove 30 is a "T"-shaped slider 19. The upper end of the slider 19 is rotatably connected to the roller 20, and the roller 20 abuts the track assembly 8. A rack 21 is connected to the side of the slider 19, and the rack 21 is engaged with the gear column 22. One end of the gear column 22 is connected to the output shaft of the No. 2 motor 23.

[0026] In this embodiment, the lower end of the gear column 22 is connected to the plug rod 31, and the lower end of the plug rod 31 is connected to the worm 24. The worm 24 is installed in the support frame 14 and its lower end is engaged with the turbine 18. A clearance groove is opened on the support frame 14, and the plug rod 31 moves in the clearance groove. The lower end of the support frame 14 is also provided with a cutter 25.

[0027] In this embodiment, the track assembly 8 includes a base plate 26 mounted on the base 5, and the base plate 26 is rotatably connected to the gear ring 11 on the side. A second track 27 is provided on the base plate 26, and a first track 28 and a third track 29 are symmetrically arranged along the center line of the second track 27 on both sides. The second track 27 is inscribed in the first track 28 and the third track 29, and the second track 27 is concentrically arranged with the plastic pipe at the cut section.

[0028] In this embodiment, the conveying roller assembly 1 includes a stand 3 , and two conveying rollers 4 with symmetrical structures are rotatably connected to the stand 3 .

[0029] The initial state of the device is as follows: the rollers 20 of the two sets of cutting assemblies 7 are respectively in contact with the inner walls of the highest point of the first track 28 (referred to as point A for the convenience of description) and the lowest point of the third track 29 (referred to as point B for the convenience of description), and the spring 15 is in a free state, and the angle between the cutter 17 and the support frame 14 is 0°, and they are in a vertical state.

[0030] Working process and principle: When the present invention is used in conjunction with a fixed-length measuring device in a workshop, it is convenient to realize fixed-length cutting. After drying, the plastic pipe passes through the cutting device 2 and the array of conveying roller assemblies 1 symmetrically distributed on both sides. The two conveying rollers 4 on the array of conveying roller assemblies 1 convey the plastic pipe. When cutting is required,

[0031] Start the No. 1 motor 9, drive the gear 10 to rotate, thereby drive the ring gear 11 to rotate on the base plate 26, so that the two groups of cutting assemblies 7 connected to the ring gear 11 rotate to cut the plastic pipe, specifically as follows: the connecting block 12 rotates, drive the support rod 13, the support frame 14 and the cutter 17 to rotate, and because the roller 20 rotates and is connected to the slider 19 on the support frame 14, and the rollers 20 on the two cutting assemblies 7 respectively abut on the inner walls of the first track 28 and the third track 29, the first track 28 and the third track 29 are symmetrically arranged along the center line of the second track 27, so as the cutting assembly 7 rotates, they move to the lowest point of the first track 28 (for the convenience of description, here referred to as point a) and the highest point of the third track 29 (for the convenience of description, here referred to as point b), and in this process, the support frame 14 is closer and closer to the center of the plastic pipe, the spring 15 is compressed, and the cutter 17 gradually contacts the plastic pipe and cuts into the plastic pipe, and finally rotates to cut the plastic pipe;

[0032] After a long plastic tube is cut into two adjacent plastic tubes, the No. 1 motor 9 stops rotating and the No. 2 motor 23 is started to drive the gear column 22 to rotate, thereby causing the rack 21 meshing with the gear column 22 to move, driving the slider 19 to move in the slide groove 30 until the rollers 20 on the two cutting assemblies 7 are both located on the inner wall of the second track 27 (the rollers of the two sets of cutting assemblies 7 move from point a and point b to the lowest point and the highest point of the inner wall of the second track 27 respectively). At the same time, due to the rotation of the gear column 22, the insertion rod 31 is driven to rotate, thereby causing the worm 24 connected to the insertion rod 31 to rotate, driving the turbine 18 to rotate, causing the cutter 17 to rotate until the angle with the support frame 14 is 90 degrees, then the No. 2 motor 23 stops rotating, the No. 1 motor 9 is started, driving the two sets of cutting assemblies 7 to rotate, thereby causing the cutter 17 to cut and expand the inner diameter of the end of the plastic tube, and the cutter 25 to cut the outer wall of the end of the adjacent plastic tube, finally making the plastic tube formed as shown in the figure. Figure 8 The structure shown.

[0033] The present invention transports and cuts a long plastic pipe into the shape required by the customer by providing a conveying roller assembly 1 and a cutting device 2. Specifically, by providing a first track 28 and a third track 29 symmetrically arranged along the center line of the second track 27, the two rollers 20 respectively abut the first track 28 and the third track 29. As the cutting assembly 7 rotates, the cutter 17 gradually contacts the plastic pipe and cuts into the plastic pipe, and finally rotates to cut the plastic pipe. By providing a rack 21 to move, the slider 19 is driven to move in the slide groove 30 until the rollers 20 on the two cutting assemblies 7 are both located on the inner wall of the second track 27, and the worm 24 is provided to rotate, driving the turbine 18 to rotate, so that the cutter 17 rotates until the angle with the support frame 14 is 90 degrees. Then, the No. 1 motor 9 is started to drive the two groups of cutting assemblies 7 to rotate, so that the cutter 17 cuts and expands the inner diameter of the end of the plastic pipe, and the cutter 25 cuts the outer wall of the end of the adjacent plastic pipe, so that the plastic pipe is finally formed into the structure required by the customer.

[0034] It is understood from common technical knowledge that the present invention may be implemented by other embodiments that do not depart from its spirit or essential features. Therefore, the embodiments disclosed above are, in all respects, merely illustrative and not exclusive. All modifications within the scope of the present invention or equivalent to the scope of the present invention are intended to be encompassed by the present invention.

Claims

1. A method for operating a plastic tube cutting device for an extruder, characterized in that: The cutting device comprises a plurality of groups of conveying roller assemblies (1) with the same structure and a cutting device (2). The plurality of groups of conveying roller assemblies (1) are symmetrically distributed on both sides of the cutting device (2) and are used to convey plastic pipes. The cutting device (2) comprises a base (5), a driving assembly (6), a cutting assembly (7) and a track assembly (8). The driving assembly (6) is mounted on the base (5) and is used to drive the cutting assembly (7) to rotate. The track assembly (8) is located inside the base (5). The cutting assembly (7) moves along the track assembly (8) and cuts the plastic pipes, and cuts the ends of the two adjacent plastic pipes into the shape required by the customer. The driving assembly (6) has two groups and is symmetrically arranged, including a No. 1 motor (9) mounted on the base (5), the output shaft of the No. 1 motor (9) is connected to a gear (10), the gear (10) is meshed with a ring gear (11), and the ring gear (11) is rotatably connected to the end face of the track assembly (8); The cutting assembly (7) includes a connecting block (12) mounted on the inner side of the gear ring (11), and two symmetrical support rods (13) and a second motor (23) are provided on the connecting block (12). The other ends of the two support rods (13) pass through the support frame (14) and are covered with a spring (15). The upper and lower ends of the spring (15) are respectively connected to the support frame (14) and the stopper (16) at the end of the support rod (13). The lower end of the support frame (14) is rotatably connected to the cutter (17). The cutter (17) is provided with a turbine (18) at the end thereof, a slide groove (30) is installed on the side of the support frame (14), a sliding block (19) with a T-shaped end portion is slidably connected in the slide groove (30), the upper end of the sliding block (19) is rotatably connected to a roller (20), the roller (20) abuts against the track assembly (8), a rack (21) is connected to the side of the sliding block (19), the rack (21) is meshed with a gear column (22), and one end of the gear column (22) is connected to the output shaft of the second motor (23); The lower end of the gear column (22) is plugged with an insert rod (31), and the lower end of the insert rod (31) is plugged with a worm (24), and the worm (24) is installed in the support frame (14) and its lower end is engaged with the turbine (18). The support frame (14) is provided with a clearance groove, and the insert rod (31) moves in the clearance groove. The lower end of the support frame (14) is also provided with a cutter (25); The track assembly (8) comprises a base plate (26) mounted on a base (5), the base plate (26) is rotatably connected to a gear ring (11) on its side, a second track (27) is provided on the base plate (26), a first track (28) and a third track (29) are symmetrically arranged along the center line of the second track (27) on both sides, the second track (27) is inscribed in the first track (28) and the third track (29), and the second track (27) is concentrically arranged with the plastic pipe at the cut section The operation method of the cutting device is as follows: The two conveying rollers (4) on the array conveying roller assembly (1) convey the plastic pipe, which passes through the cutting device (2). When it needs to be cut, Start the No. 1 motor (9), the gear 1 (10) rotates to drive the ring gear (11) to rotate on the base plate (26), the connecting block (12) in the two groups of cutting assemblies (7) connected to the ring gear (11) rotates, the support rod (13), the support frame (14) and the cutter 1 (17) rotate, and the two rollers (20) move along the inner wall of the first track (28) and the third track (29) respectively. As the cutting assembly (7) rotates, they move to the lowest point of the first track (28) and the highest point of the third track (29) respectively. In this process, the support frame (14) is closer and closer to the center of the plastic pipe, the spring (15) is compressed, and the cutter 1 (17) gradually contacts the plastic pipe and cuts into the plastic pipe, rotating to cut the plastic pipe; After a long plastic tube is cut into two adjacent plastic tubes, the No. 1 motor (9) stops rotating and the No. 2 motor (23) is started, driving the gear column (22) to rotate, the rack (21) meshing with the gear column (22) moves, the slider (19) moves in the slide groove (30), and the rollers (20) of the two cutting assemblies (7) move from the lowest point of the first track (28) and the highest point of the third track (29) to the lowest point and the highest point of the inner wall of the second track (27), respectively. When the gear column (22) rotates, the plug rod (31) rotates, the worm (24) connected to the plug rod (31) rotates, the turbine (18) rotates, the cutter (17) rotates, and after the angle with the support frame (14) is 90 degrees, the second motor (23) stops rotating, the first motor (9) starts, and drives the two cutting assemblies (7) to rotate, the cutter (17) cuts the end of the plastic pipe to expand the inner diameter, and the cutter (25) cuts the outer wall of the end of the adjacent plastic pipe.

2. The method for operating a plastic tube cutting device for an extruder according to claim 1, characterized in that: The conveying roller assembly (1) comprises a stand (3), and two structurally symmetrical conveying rollers (4) are rotatably connected to the stand (3).

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