CN109591066B

CN109591066B - Precise cutting equipment for teflon pipes

Info

Publication number: CN109591066B
Application number: CN201811507383.6A
Authority: CN
Inventors: 李鲜元
Original assignee: Hefei Lanchuan Ecological Technology Co ltd
Current assignee: HEFEI LANCHUAN ECOLOGICAL TECHNOLOGY Co.,Ltd.
Priority date: 2017-11-07
Filing date: 2017-11-07
Publication date: 2021-11-09
Anticipated expiration: 2037-11-07
Also published as: CN107877560A; CN109591070A; CN107877560B; CN109591066A; CN109591065B; CN109591065A

Abstract

The invention provides a Teflon tube precision cutting device which comprises a rack (1), a Teflon tube conveying device (2) and a Teflon tube cutting device (3), wherein the rack (1) is provided with a rack table top (11); teflon tube conveying device (2) and Teflon tube cutting device (3) are respectively installed on a rack table board (11), and Teflon tubes of fixed lengths are conveyed by Teflon tube conveying device (2) to enter Teflon tube cutting device (3) to be cut off and conveyed to collecting box (5). The invention can effectively improve the length precision of the cut pipe, has good incision quality, and reduces or even eliminates the bending or flattening condition of the pipe.

Description

Precise cutting equipment for teflon pipes

Technical Field

The invention relates to the technical field of industrial mechanical automation, in particular to a precise cutting device for a teflon pipe.

Background

In the operation is cut off to the teflon tubule, to a type tubular product, need cut the nozzle stub of multiple specific length usually, will guarantee tubular product length precision and incision quality and tubular product surface can not have the trace of bending or flattening, and the incision will level and smooth.

At present, for cutting a Teflon thin tube with a specific length, a roller is adopted for feeding materials, and then a blade is used for cutting the Teflon thin tube. Because the feeding is realized by pressing the thin tube through the roller, the contact surface is small, the pressure is manually adjusted and is not well controlled, the thin tube is hard and is easy to bend or flatten, or slips and deviates, the cutting length and precision are difficult to guarantee, the notch quality is poor, the oblique opening is easy to cut, the smaller the diameter of the thin tube is, the higher the feeding difficulty is, and the material waste caused by bending or flattening the thin tube is huge.

In view of the above, the present invention is particularly proposed.

Disclosure of Invention

Aiming at the prior art, the invention aims to provide a precise cutting device for a Teflon tube, which can effectively improve the length precision of the tube, has good incision quality and reduces or even eliminates the bending or flattening condition of the tube.

In order to solve the technical problem, the invention provides a Teflon tube precision cutting device which comprises a rack, a Teflon tube conveying device and a Teflon tube cutting device, wherein the rack is provided with a rack table; the Teflon tube conveying device and the Teflon tube cutting device are respectively arranged on the table surface of the frame, and the Teflon tube conveying device conveys Teflon tubes with fixed lengths into the Teflon tube cutting device for cutting and conveying the Teflon tubes into the collecting box; the Teflon tube cutting device comprises a clamping mechanism, a cutting mechanism and a cutting driving mechanism, wherein the clamping mechanism is installed on the table surface of a rack, the cutting mechanism is arranged in the clamping mechanism, the cutting driving mechanism is installed on the table surface of the rack, and the cutting driving mechanism drives the cutting mechanism to work and cut off a Teflon tube clamped in the clamping mechanism; the clamping mechanism comprises an upper clamping plate, a lower clamping plate, a bottom plate, an upper driving plate, a lower driving plate, a second upright post and a second elastic element, wherein a through cavity is transversely formed in the middle of the lower clamping plate, the lower driving plate is fixedly installed on the bottom plate, the upper driving plate is placed on the lower driving plate, the upper driving plate, the lower driving plate and the bottom plate are all placed in the through cavity in the middle of the lower clamping plate, the upper clamping plate is placed on the lower clamping plate, one end of the second upright post is fixedly installed on the upper clamping plate, the other end of the second upright post penetrates through the lower clamping plate in a sliding mode to be fixedly connected with the bottom plate, and the second elastic element is sleeved on the second upright post and placed between the upper clamping plate and the lower clamping plate; the cutting mechanism comprises a cutter, a cutter mounting plate and a slide rail, the cutter is fixedly mounted on the cutter mounting plate, the slide rail is placed in a through cavity in the middle of the lower clamp plate and is fixedly mounted on the lower clamp plate, the cutter mounting plate is connected with the slide rail in a sliding mode, and the upper drive plate is fixedly mounted below the cutter mounting plate.

The Teflon tube conveying device is further improved by comprising a conveying wheel conveying mechanism and a conveying wheel driving mechanism, wherein the conveying wheel conveying mechanism and the conveying wheel driving mechanism are respectively arranged on the table surface of the rack, and the conveying wheel driving mechanism drives the conveying wheel conveying mechanism to convey Teflon tubes with fixed lengths forwards.

The conveying device is further improved in that the conveying wheel conveying mechanism comprises a driving wheel set, a driven wheel set, a wheel track adjusting mechanism and a conveying length measuring mechanism, the driving wheel set is mounted on the table surface of the rack, the driven wheel set is mounted on the driving wheel set, the wheel track adjusting mechanism is mounted between the driving wheel set and the driven wheel set and used for adjusting the distance between the driving wheel and the driven wheel, and the conveying length measuring mechanism is mounted on the driven wheel set and connected with one driven wheel of the driven wheel set and used for measuring the conveying length of the Teflon tube.

Compared with the prior art, the invention adopts the technical scheme that the Teflon tube is drawn out from the Teflon tube turntable and inserted into the conveying wheel conveying mechanism; the conveying wheel driving mechanism works to drive the conveying wheel conveying mechanism to convey the Teflon tubes with fixed length forwards into the clamping mechanism; the cutting driving mechanism works to drive the cutting mechanism to work to cut off the Teflon tube clamped in the clamping mechanism; the conveying wheel driving mechanism works to drive the conveying wheel conveying mechanism to convey the Teflon tubes with fixed length forwards into the clamping mechanism and eject the cut Teflon tubes forwards into the collecting box; repeating the above process to cut and output. The invention can effectively improve the length precision of the cut pipe, has good incision quality, and reduces or even eliminates the bending or flattening condition of the pipe.

Drawings

FIG. 1 is a perspective view of an embodiment of the present invention;

FIG. 2 is a perspective view of a Teflon tube delivery device in accordance with a first embodiment of the invention;

FIG. 3 is a perspective expanded view of FIG. 2;

FIG. 4 is a perspective view of a Teflon tube cutting device in accordance with a first embodiment of the invention;

FIG. 5 is a perspective expanded view of FIG. 4;

FIG. 6 is a perspective view of an upper jaw in accordance with a first embodiment of the present invention;

FIG. 7 is a perspective view of a lower jaw of a first embodiment of the present invention;

FIG. 8 is a perspective view of the upper drive plate and cutter mounting plate combination of the present invention;

fig. 9 is a perspective view of a lower drive plate of the present invention.

The names of the components in the figure are as follows:

1, a frame;

11-a rack table;

2-a teflon pipe conveying device;

21-conveying wheel conveying mechanism;

211-driving wheel group;

2111 — driving wheel;

2112 — drive axle;

2113 — drive wheel mounting plate;

212 — a passive wheel set;

2121-driven wheel;

2122-driven axle;

2123-driven wheel mounting plate;

213-track adjustment mechanism;

2131-a first upright post;

2132-a first elastic element;

2133 baffle plate;

2134 regulating the spacer;

214-transport length measuring means;

2141 — a rotary encoder;

2142-encoder mounting base;

22-a conveyor wheel drive mechanism;

221-a first motor;

222 — a first motor mount;

223 — a first rotating shaft;

224-a first shaft seat;

225 — a first bevel gear;

226-a second bevel gear;

3-a Teflon tube cutting device;

31-a clamping mechanism;

311-upper clamp plate;

312-lower clamping plate;

3121-through slot;

3122-through lumen;

3123 — cavity;

313 — a bottom plate;

314 — an upper drive plate;

3141-trapezoidal boss;

315 — lower drive plate;

316-second upright;

317 — a second elastic element;

32-a cutting mechanism;

321-a cutter;

322-cutter mounting plate;

323-slide rail;

33-a cutting drive mechanism;

331 — a second motor;

332 — a second motor mount;

333-second rotating shaft;

334-a turntable;

335-pin shaft;

336-connecting rod;

4-a teflon tube;

and 5, collecting the box.

Detailed Description

The invention is further described with reference to the following description and embodiments in conjunction with the accompanying drawings.

The invention discloses a precise cutting device for a teflon pipe, which comprises the following implementation modes:

as shown in fig. 1 to 9, a teflon tube precision cutting apparatus comprises a frame 1, a teflon tube conveying device 2, and a teflon tube cutting device 3, wherein the frame 1 is provided with a frame table 11; teflon tube conveying device 2 and Teflon tube cutting device 3 are respectively and fixedly mounted on a rack table top 11, and Teflon tube conveying device 2 conveys Teflon tubes 4 with fixed lengths into Teflon tube cutting device 3 to be cut off and conveyed into collecting box 5.

Specifically, as shown in fig. 1 to 9, the teflon tube conveying device 2 includes a conveying wheel conveying mechanism 21, a conveying wheel driving mechanism 22; the conveying wheel conveying mechanism 21 comprises a driving wheel set 211, a driven

wheel set

212, 2 groups of wheel distance adjusting mechanisms 213 and a conveying length measuring mechanism 214; the driving wheel set 211 comprises 4

driving wheels

2111, 4

driving wheel shafts

2112 and 1 driving wheel mounting plate 2113; the driven wheel set 212 includes 5 driven

wheels

2121, 5 driven

wheel axles

2122, and 1 driven wheel mounting plate 2123; the track adjusting mechanism 213 includes a first upright 2131, a first elastic element 2132, a baffle 2133 and an adjusting gasket 2134; the conveying length measuring mechanism 214 includes a rotary encoder 2141, an encoder mounting seat 2142; the conveyor wheel driving mechanism 22 includes a first motor 221, a first motor base 222, a first

rotating shaft

223, 2 first

rotating shaft bases

224, 4

first bevel gears

225, and 4 second bevel gears 226. The first elastic element 2132 is a spring, and the adjusting pad 2134 can be different in thickness to adjust the distance between the driving wheel 2111 and the driven wheel shaft 2122. The conveying wheel conveying mechanism 21 and the conveying wheel driving mechanism 22 are respectively arranged on the rack table surface 11, and the conveying wheel driving mechanism 22 drives the conveying wheel conveying mechanism 21 to convey the Teflon tubes 4 with fixed length forwards; the driving wheel set 211 is installed on the machine frame table 11, the driven wheel set 212 is installed on the driving wheel set 211, the wheel track adjusting mechanism 213 is installed between the driving wheel set 211 and the driven wheel set 212 for adjusting the distance between the driving wheel and the driven wheel, and the conveying length measuring mechanism 214 is installed on the driven wheel set 212 and connected with one driven wheel of the driven wheel set 212 for measuring the conveying length of the teflon tube 4. The driving wheel mounting plate 2113 is fixedly mounted on the rack table 11, the 4 driving wheel shafts 2112 respectively penetrate through the driving wheel mounting plate 2113 and are rotatably connected with the driving wheel mounting plate 2113, and the 4 driving wheels 2111 are respectively and fixedly mounted at one ends of the 4 driving wheel shafts 2112. The 5 driven wheel shafts 2122 respectively penetrate through and are rotatably connected with the driven wheel mounting plates 2123, the 5 driven wheels 2121 are respectively and fixedly mounted at one end of the driven wheel shafts 2122, the driven wheel mounting plates 2123 are placed on the driving wheel mounting plates 2113, and the 5 driven wheels 2121 and the 4 driving wheels 2111 are arranged in a staggered manner. One end of the first upright 2131 is fixedly connected with the driving wheel mounting plate 2113 or fixedly mounted on the frame table 11 by penetrating through the driving wheel mounting plate 2113, the other end of the first upright 2131 slides through the driven wheel mounting plate 2123 by a linear bearing or a bushing and is fixedly connected with the baffle 2133, the adjusting gasket 2134 is sleeved outside the first upright 2131 and is arranged between the driven wheel mounting plate 2123 and the baffle 2133, and the first elastic element 2132 is sleeved outside the first upright 2131 and is arranged between the driven wheel mounting plate 2123 and the driving wheel mounting plate 2113. The rotary encoder 2141 is fixedly mounted on the encoder mounting seat 2142, the encoder mounting seat 2142 is fixedly mounted on the driven wheel mounting plate 2123, and the input shaft of the rotary encoder 2141 is fixedly connected with the other end of the 4 th (counted from outside to inside) driven wheel shaft 2122 through a coupling. The first motor 221 is fixedly installed on the first motor base 222, the first motor base 222 is fixedly installed on the rack table 11, the first rotating shaft base 224 is installed at two ends of the first rotating shaft 223 in a rotating mode, the first rotating shaft base 224 is fixedly installed on the rack table 11, an output shaft of the first motor 221 is fixedly connected with the first rotating shaft 223 through a coupler, 4 first bevel gears 225 are fixedly installed on the first rotating shaft 223 respectively, 4 second bevel gears 226 are fixedly installed on the other ends of the 4 driving wheel shafts 2112 respectively, and the 4 first bevel gears 225 are meshed with the 4 second bevel gears 226 respectively. Guide plates for guiding the Teflon tubes 4 are arranged at the inlets and outlets of the driving wheel mounting plate 2113 and the driven wheel mounting plate 2123, and guide grooves are formed in the guide plates.

Specifically, as shown in fig. 1 to 9, the teflon tube cutting device 3 includes a clamping mechanism 31, a cutting mechanism 32, and a cutting driving mechanism 33, wherein the clamping mechanism 31 is fixedly mounted on the frame table 11, the cutting mechanism 32 is disposed in the clamping mechanism 31, the cutting driving mechanism 33 is fixedly mounted on the frame table 11, and the cutting driving mechanism 33 drives the cutting mechanism 32 to cut off the teflon tube clamped in the clamping mechanism 31. The clamping mechanism 31 comprises an upper clamping plate 311, a lower clamping plate 312, a bottom plate 313, an upper driving plate 314, a

lower driving plate

315, 4

second columns

316 and 4 second spring elastic elements 317, wherein through grooves 3121 for clamping teflon pipes are longitudinally arranged on the upper clamping plate 311 and the lower clamping plate 312, the through grooves 3121 are V-shaped grooves, adhesive tapes are arranged in the through grooves 3121, a through cavity 3122 is transversely arranged in the middle of the lower clamping plate 312, cavities 3123 for accommodating the cutters 321 are transversely arranged on the upper clamping plate 311 and the lower clamping plate 312, trapezoidal bosses 3141 are arranged on the upper driving plate 314 and the lower driving plate 315, the trapezoidal bosses 3141 are isosceles trapezoid bosses, and the second elastic elements 317 are springs; the cutting mechanism 32 comprises a cutter 321, a cutter mounting plate 322 and a slide rail 323, and the upper cutting part of the cutter 321 is triangular; the cutting driving mechanism 33 includes a second motor 331, a second motor base 332, a second rotating shaft 333, a rotating disc 334, a pin shaft 335, and a connecting rod 336. The lower driving plate 315 is fixedly installed on the bottom plate 313, the upper driving plate 314 is placed on the lower driving plate 315 and is fixedly installed below the cutter installation plate 322, the upper driving plate 314, the lower driving plate 315, the bottom plate 313, the cutter 321, the cutter installation plate 322 and the sliding rail 323 are all placed in the through cavity 3122 in the middle of the lower clamping plate 312, the upper clamping plate 311 is placed on the lower clamping plate 312, one ends of 4 second upright posts 316 are respectively and fixedly installed on the upper clamping plate 311, the other ends of the 4 second upright posts 316 respectively slide through the lower clamping plate 312 and are fixedly connected with the bottom plate 313 through linear bearings or bushings, and the 4 second elastic elements 317 are respectively sleeved on the 4 second upright posts 316 and elastically abut against between the upper clamping plate 311 and the lower clamping plate 312. The cutter 321 is fixedly arranged on the cutter mounting plate 322, the sliding rail 323 is arranged in the through cavity 3122 in the middle of the lower clamp plate 312 and is fixedly arranged on the lower clamp plate 312, and the cutter mounting plate 322 is connected with the sliding rail 323 in a sliding way. The second motor 331 is fixedly installed on the second motor base 332, the second motor base 332 is fixedly installed on the rack table 11, the second rotating shaft 333 is rotatably installed on the rack table 11 through a bearing and is fixedly connected with an output shaft of the second motor 331, the rotating disc 334 is fixedly installed on the second rotating shaft 333, the pin shaft 335 is fixedly installed on the rotating disc 334, one end of the connecting rod 336 is rotatably connected with the pin shaft 335, the other end of the connecting rod 336 is rotatably connected with the cutter installation plate 322, and the axis of the pin shaft 335 deviates from the axis of the second rotating shaft 333 by a certain distance.

Preferably, as shown in fig. 3, the cutting mechanism 32 further includes a bumper 324 and a bumper mounting plate 325, wherein the bumper 324 is fixedly mounted on the bumper mounting plate 325, and the bumper mounting plate 325 is fixedly mounted on the lower plate 312 or the bottom plate 313.

Preferably, as shown in fig. 1, the present invention is further provided with a collecting box 5, wherein the collecting box 5 is placed at the outlet of the upper clamping plate 311 and the lower clamping plate 312 for collecting the cut teflon pipes 4.

The working principle of the precise cutting equipment for the Teflon tube comprises the following steps: the Teflon tube 4 is drawn out of the Teflon tube turntable, inserted between the driving wheel 2111 and the driven wheel 2121 through the guide groove of the guide plate, and then enters the through grooves 3121 of the upper clamping plate 311 and the lower clamping plate 312 through the 4 driving wheels and the 5 driven wheels; the control system controls the output shaft of the first motor 221 to rotate by a set angle, the first rotating shaft 223 is driven to rotate together through the coupler, the first rotating shaft 223 drives the second bevel gear 226 to rotate together through the first bevel gear 225, the second bevel gear 226 drives the driving wheel 2111 to rotate together through the driving wheel shaft 2112, the driving wheel 2111 and the driven wheel 2121 rotate together to convey the Teflon tube 4 with fixed length forwards into the through groove 3121 of the upper clamping plate 311 and the lower clamping plate 312, meanwhile, the rotary encoder 2141 works to output a signal to the control system, and the control system receives the signal and calculates the length of the Teflon tube 4; the control system controls the output shaft of the second motor 331 to rotate 180 degrees, the output shaft of the second motor 331 drives the turntable 334 to rotate together around the axis of the second rotating shaft 333 through the second rotating shaft 333, the turntable 334 drives the cutter mounting plate 322 and the cutter 321 to move forward along the slide rail 323 through the eccentric pin shaft 335 and the connecting rod 336, simultaneously the cutter mounting plate 322 drives the upper drive plate 314 to move together, then the trapezoidal boss of the upper drive plate 314 is matched with the oblique side edge of the trapezoidal boss of the lower drive plate 315 to force the top surfaces of the two trapezoidal bosses to contact, the upper clamp plate 311 is forced to move downwards through the bottom plate 313 fixedly connected with the lower drive plate 315 and the second upright post 316 fixedly connected with the bottom plate 313, so that the through grooves 3121 of the upper clamp plate 311 and the lower clamp plate 312 are matched to clamp the teflon tube 4, the cutter 321 continues to move along the slide rail 323 to the teflon tube direction to cut off the teflon tube 4 to a set position, and simultaneously the top surface of the trapezoidal boss of the upper drive plate 314 is separated from the top surface of the trapezoidal boss of the lower drive plate 315, the upper clamp plate 311 moves upward by the elastic force of the second elastic member 317, thereby releasing the teflon tube 4; the control system controls the output shaft of the first motor 221 to rotate by a set angle again, the first rotating shaft 223 is driven to rotate together through the coupler, the first rotating shaft 223 drives the second bevel gear 226 to rotate together through the first bevel gear 225, the second bevel gear 226 drives the driving wheel 2111 to rotate together through the driving wheel shaft 2112, the driving wheel 2111 and the driven wheel 2121 rotate together to convey the Teflon tube 4 with fixed length forward and then enter the through groove 3121 of the upper clamping plate 311 and the lower clamping plate 312, the conveyed Teflon tube 4 pushes the cut Teflon tube 4 forward and enters the collection box 5, meanwhile, the rotary encoder 2141 works again to output a signal to the control system, and the control system receives the signal and calculates the length of the conveyed Teflon tube 4; the control system controls the output shaft of the second motor 331 to rotate 180 degrees again, the output shaft of the second motor 331 drives the turntable 334 to rotate together around the axis of the second rotating shaft 333 through the second rotating shaft 333, the turntable 334 drives the cutter mounting plate 322 and the cutter 321 to move backwards along the sliding rail 323 through the eccentric pin shaft 335 and the connecting rod 336, simultaneously the cutter mounting plate 322 drives the upper driving plate 314 to move together, then the trapezoidal boss of the upper driving plate 314 is matched with the oblique side edge of the trapezoidal boss of the lower driving plate 315 to force the top surfaces of the two trapezoidal bosses to be contacted, the upper clamping plate 311 is forced to move downwards through the bottom plate 313 fixedly connected with the lower driving plate 315 and the second upright post 316 fixedly connected with the bottom plate 313, so that the through grooves 3121 of the upper clamping plate 311 and the lower clamping plate 312 are matched to clamp the teflon tube 4, the cutter 321 continues to move along the sliding rail 323 to the teflon tube 4 direction to cut off the teflon tube 4 to a set position, and simultaneously the top surface of the trapezoidal boss of the driving plate of the upper driving plate 314 is separated from the top surface of the trapezoidal boss of the lower driving plate 315, the upper clamp plate 311 is moved upward by the elastic force of the second elastic member 317, thereby releasing the teflon tube 4.

The invention relates to a second embodiment of a precise cutting device for a teflon tube:

the second embodiment is basically the same as the first embodiment, except that: the driven wheel set 212 includes 4 driven

wheels

2121, 4 driven

wheel axles

2122, and 1 driven wheel mounting plate 2123. The 4 driven wheel shafts 2122 respectively penetrate through and are rotatably connected with the driven wheel mounting plates 2123, the 4 driven wheels 2121 are respectively and fixedly mounted at one ends of the driven wheel shafts 2122, the driven wheel mounting plates 2123 are placed on the driving wheel mounting plates 2113, and the 4 driven wheels 2121 and the 4 driving wheels 2111 are arranged oppositely.

The invention relates to a third embodiment of a precise cutting device for a teflon tube:

the third embodiment is basically the same as the first embodiment, except that: the dial 334 is replaced with a cam having a cam slot into which the pin 335 is placed for driving engagement by the cam slot.

The invention also provides a precise cutting method of the Teflon tube, which comprises the following steps:

A. preparing: the Teflon tube 4 is drawn out from the Teflon tube turntable and inserted into the conveying wheel conveying mechanism 21;

B. conveying: the conveying wheel driving mechanism 22 works to drive the conveying wheel conveying mechanism 21 to convey the Teflon tube 4 with a fixed length forwards into the clamping mechanism 31;

C. cutting: the cutting driving mechanism 33 works to drive the cutting mechanism 32 to work to cut off the Teflon tube 4 clamped in the clamping mechanism 31;

D. and (3) outputting: the conveying wheel driving mechanism 22 works again to drive the conveying wheel conveying mechanism 21 to convey the Teflon tubes 4 with fixed length forwards into the clamping mechanism 31 and eject the cut Teflon tubes 4 forwards into the collecting box 5;

and C, returning to the step C, and repeatedly cutting and outputting.

Specifically, the step B includes the following sub-steps:

B1. the first motor 221 works to drive the driving wheel 2111 to rotate simultaneously through bevel gear transmission;

B2. the driving wheel 2111 rotates to drive the driven wheel 2121 to convey the fixed-length Teflon tubes 4 forwards together through the Teflon tubes into the through grooves 3121 of the upper clamping plate 311 and the lower clamping plate 312;

B3. the rotary encoder 2141 outputs a signal to the control system, and the control system receives the signal and calculates the length of the Teflon tube 4.

Specifically, the step C includes the following sub-steps:

C1. the second motor 331 drives the cutter 321 mounted on the cutter mounting plate 322 to move along the slide rail 323 to the Teflon tube 4 through an eccentric link mechanism or a cam mechanism;

C2. meanwhile, the cutter mounting plate 322 drives the upper driving plate 314 to move together;

C3. then the trapezoidal bosses of the upper driving plate 314 are matched with the oblique sides of the trapezoidal bosses of the lower driving plate 315 to force the top surfaces of the two trapezoidal bosses to contact, the upper clamping plate 311 is forced to move downwards by the bottom plate 313 fixedly connected with the lower driving plate 315 and the second upright 316 fixedly connected with the bottom plate 313, and the through grooves 3121 of the upper clamping plate 311 and the lower clamping plate 312 are matched to clamp the teflon pipe 4;

C4. the cutter 321 continues to move along the slide rail 323 to the direction of the Teflon tube 4 to cut off the Teflon tube 4 to a set position;

C5. meanwhile, the top surface of the trapezoidal boss of the upper driving plate 314 is separated from the top surface of the trapezoidal boss of the lower driving plate 315, and the upper clamping plate 311 moves upward by the elastic force of the second elastic member 317, thereby releasing the teflon tube 4.

Specifically, the step D includes the following sub-steps:

D1. the first motor 221 works again to drive the driving wheel 2111 to rotate simultaneously through bevel gear transmission;

D2. the driving wheel 2111 rotates to drive the driven wheel 2121 through the Teflon tube 4 and then forwards convey the Teflon tube 4 with fixed length into the through grooves 3121 of the upper clamping plate 311 and the lower clamping plate 312, and the conveyed Teflon tube 4 forwards ejects the cut Teflon tube 4 forwards into the collection box 5;

D3. the rotary encoder 2141 works again to output a signal to the control system, and the control system receives the signal and calculates the length of the Teflon tube 4.

The present invention further comprises a control system for receiving the signal from the rotary encoder 2141 and calculating the length of the teflon tube 4 according to the signal, and the control system is used for controlling the operation of the first motor 221 and the second motor 331.

The invention has the advantages that the Teflon tube is extracted from the Teflon tube turntable and inserted into the conveying wheel conveying mechanism; the conveying wheel driving mechanism works to drive the conveying wheel conveying mechanism to convey the Teflon tubes with fixed length forwards into the clamping mechanism; the cutting driving mechanism works to drive the cutting mechanism to work to cut off the Teflon tube clamped in the clamping mechanism; the conveying wheel driving mechanism works to drive the conveying wheel conveying mechanism to convey the Teflon tubes with fixed length forwards into the clamping mechanism and eject the cut Teflon tubes forwards into the collecting box; repeating the above process to cut and output. The invention can effectively improve the length precision of the cut pipe, has good incision quality, and reduces or even eliminates the bending or flattening condition of the pipe.

Compared with the prior art, the invention has the beneficial effects that:

1. the driving wheel set 211, the driven wheel set 212 and the conveying length measuring mechanism 214 are adopted to accurately convey the length of the Teflon tube 4, so that the length precision of conveying the Teflon tube 4 and the length precision of cutting the tube can be effectively improved;

2. the upper clamping plate 311 and the lower clamping plate 312 are both longitudinally provided with V-shaped through grooves, adhesive tapes are arranged in the V-shaped through grooves, and the Teflon tubes 4 are clamped by the V-shaped through grooves and the adhesive tapes, so that the condition that the tubes are bent or flattened can be reduced or even eliminated;

3. the cutter 321 arranged on the cutter mounting plate 322 slides back and forth along the slide rail 323 to cut off the Teflon tube 4, so that the length precision of the tube can be effectively improved, and the incision quality is ensured.

The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.

Claims

1. A precise cutting device for a Teflon tube comprises a rack (1), a Teflon tube conveying device (2) and a Teflon tube cutting device (3), wherein the rack (1) is provided with a rack table top (11); the Teflon tube conveying device (2) and the Teflon tube cutting device (3) are respectively arranged on a rack table surface (11), and the Teflon tube conveying device (2) conveys Teflon tubes with fixed lengths into the Teflon tube cutting device (3) to be cut off and conveyed into the collecting box (5); the method is characterized in that: the Teflon tube cutting device (3) comprises a clamping mechanism (31), a cutting mechanism (32) and a cutting driving mechanism (33), wherein the clamping mechanism (31) is installed on a rack table board (11), the cutting mechanism (32) is arranged in the clamping mechanism (31), the cutting driving mechanism (33) is installed on the rack table board (11), and the cutting driving mechanism (33) drives the cutting mechanism (32) to work to cut off a Teflon tube clamped in the clamping mechanism (31); the clamping mechanism (31) comprises an upper clamping plate (311), a lower clamping plate (312), a bottom plate (313), an upper driving plate (314), a lower driving plate (315), a second upright post (316) and a second elastic element (317), wherein a through cavity (3122) is transversely formed in the middle of the lower clamping plate (312), the lower driving plate (315) is fixedly installed on the bottom plate (313), the upper driving plate (314) is placed on the lower driving plate (315), the upper driving plate (314), the lower driving plate (315) and the bottom plate (313) are all placed in the through cavity (3122) in the middle of the lower clamping plate (312), the upper clamping plate (311) is placed on the lower clamping plate (312), one end of the second upright post (316) is fixedly installed on the upper clamping plate (311), the other end of the second upright post (316) penetrates through the lower clamping plate (312) to be fixedly connected with the bottom plate (313), and the second elastic element (317) is sleeved on the second upright post (316) and placed on the upper clamping plate (311), Between the lower clamping plates (312); the cutting mechanism (32) comprises a cutter (321), a cutter mounting plate (322) and a sliding rail (323), wherein the cutter (321) is fixedly mounted on the cutter mounting plate (322), the sliding rail (323) is placed in a through cavity (3122) in the middle of the lower clamping plate (312) and is fixedly mounted on the lower clamping plate (312), the cutter mounting plate (322) is in sliding connection with the sliding rail (323), and the upper driving plate (314) is fixedly mounted below the cutter mounting plate (322).

2. The Teflon tube precision cutting apparatus of claim 1, wherein: teflon tube conveyor (2) includes delivery wheel conveying mechanism (21), delivery wheel actuating mechanism (22), delivery wheel conveying mechanism (21), delivery wheel actuating mechanism (22) are installed respectively on frame mesa (11), delivery wheel actuating mechanism (22) drive delivery wheel conveying mechanism (21) carry the Teflon tube of fixed length forward.

3. The Teflon tube precision cutting apparatus of claim 2, wherein: conveying wheel conveying mechanism (21) include driving wheel group (211), driven wheel group (212), wheel track adjustment mechanism (213), carry length measurement mechanism (214), driving wheel group (211) is installed on frame mesa (11), driven wheel group (212) are installed on driving wheel group (211), wheel track adjustment mechanism (213) are installed between driving wheel group (211) and driven wheel group (212) for adjust the distance between action wheel and the driven wheel, carry length measurement mechanism (214) and install on driven wheel group (212) and be connected with one of them driven wheel of driven wheel group (212) for measure the transport length of indisputable fluorine dragon pipe.