CN110238440B

CN110238440B - Steel pipe cutting method

Info

Publication number: CN110238440B
Application number: CN201910665038.3A
Authority: CN
Inventors: 张飞; 金国军
Original assignee: Taizhou Huadi Material Technology Co Ltd
Current assignee: Taizhou Huadi Material Technology Co., Ltd
Priority date: 2019-07-23
Filing date: 2019-07-23
Publication date: 2020-06-12
Anticipated expiration: 2039-07-23
Also published as: CN110238440A

Abstract

The invention discloses a steel pipe cutting method, which comprises the following steps of clamping a steel pipe; cutting the steel pipe; the method is simple to use, and can filter the scrap iron in the cutting fluid without damaging the filter screen due to the accumulation of the scrap iron, so that the service life of the equipment is prolonged.

Description

Steel pipe cutting method

Technical Field

The invention belongs to the field of steel pipe cutting, and particularly relates to a steel pipe cutting method.

Background

The steel pipe is a rigid pipe and is commonly used in the fields of building, electromechanics and automobile part manufacturing. Different usage, the length of the steel pipe of needs is different, consequently, before utilizing the steel pipe to process, needs cut the steel pipe, makes its length that accords with needs, but traditional steel pipe cutting machine is after the steel pipe is cut, and the iron fillings that drop along with the cutting fluid are when the filter screen filters, and too much iron fillings are piled up and are leaded to the gravity that the filter screen bore great on the filter screen to can make the filter screen damage.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides the steel pipe cutting method which can filter the scrap iron in the cutting fluid and can not cause the filter screen to be damaged due to the accumulation of the scrap iron.

In order to achieve the purpose, the invention adopts the following technical scheme: a steel pipe cutting method is characterized in that: the method comprises the following steps of,

a. clamping the steel pipe;

b. cutting by using a steel pipe cutting machine, wherein the steel pipe cutting machine in the step b comprises a first base, a second base arranged at the left end of the first base, two first vertical plates, a second vertical plate, a third base fixedly arranged at the left end of the second base, rails fixedly arranged on the upper surfaces of the first base, the second vertical plate and the third base, a fourth base arranged at the front side of the second base, a sliding block arranged on the upper surface of the fourth base in a back-and-forth movement manner, a rodless cylinder, a water pump fixedly arranged on the output end of the rodless cylinder, a rotating shaft, a circular knife fixedly arranged on the outer surface of the rotating shaft, a liquid outlet pipe fixedly arranged on the upper surface of the water pump, a first driving part, a first driving shaft arranged between the first driving part and the water pump, a first belt wheel fixedly arranged on the outer surface of the first driving shaft, a second belt wheel fixedly arranged at the right end of the rotating shaft, a, The linkage device comprises a base space which is arranged on the rear end surface of the fourth base and has an upward opening, a second driving piece which is fixedly arranged on the left end wall of the base space, a second driving shaft which is arranged at the right end of the second driving piece, and a gear which is fixedly arranged at the left end of the second driving shaft; the steel pipe cutting method comprises the following steps of placing a steel pipe on a track, starting an air cylinder, driving a pressing block to move downwards by the air cylinder, pressing the steel pipe placed on the track, starting a linkage device, starting a second driving piece, driving a gear to rotate by the second driving piece through a second driving shaft, enabling a sliding block to move backwards to start a lifting device, starting a rodless air cylinder to drive the sliding block to move backwards, starting a first driving piece, driving a first belt wheel to rotate through a first driving shaft by the first driving piece, driving a second belt wheel to rotate by the first belt wheel, driving a circular knife to rotate by the second belt wheel, cutting the pressed steel pipe, simultaneously starting a water pump, spraying cutting fluid from a liquid outlet pipe by the water pump, enabling the sliding block to move forwards to start the lifting device after the steel pipe is cut, enabling a first vertical plate and a second vertical plate to move downwards, enabling a track on the second vertical, and filtering the scrap iron in the cutting fluid.

c. The cut steel tube was set aside.

The cutting blade of the steel pipe cutting machine is composed of a circular saw blade.

The diameter of the circular knife is 500 mm.

The cutting fluid comprises chlorinated paraffin, sulfurized oleic acid, barium petroleum sulfonate, oleic acid, triethanolamine and mechanical oil.

The filtering device comprises a filtering shell fixedly arranged on the right end face of the second base, a filtering space arranged in the filtering shell, a rotating disc rotatably arranged on the front end wall and the rear end wall of the filtering space, a driver fixedly arranged on the front end face of the filtering shell and connected with the rotating disc, four rotating blades fixedly arranged on the outer surface of the rotating disc, a plurality of small holes arranged on the rotating blades, grooves arranged on the surfaces of the rotating blades, a first inlet pipe communicated between the filtering space and the first shell space, a second inlet pipe communicated between the filtering space and the first shell space, a filtering plate arranged on the inner wall of the filtering space, a stainless steel bent plate fixedly arranged between the filtering plate and the filtering space, a plurality of through holes arranged on the filtering plate, and flaring holes fixedly arranged on the upper end wall of the filtering space;

the method comprises the following steps of filtering scrap iron in cutting fluid, starting a driver, driving a rotating disc to rotate by the driver, and driving a rotating blade to rotate by the rotating disc; the cutting fluid can pass through the small holes, and the scrap iron is blocked on the rotating blade.

The lifting device comprises a first inclined plate fixedly arranged on the rear end surface of the sliding plate and a second inclined plate fixedly arranged on the front end surface of the front first vertical plate and matched with the first inclined plate;

let remaining cutting fluid and the step that iron fillings flowed out in the steel pipe after the cutting as follows, through the sliding plate that moves forward, the sliding plate drives first swash plate and moves forward, and first swash plate drives the second swash plate and moves down, and the second swash plate drives first riser and moves down, and first riser drives the track and moves down.

In summary, the invention has the following advantages: the method is simple to use, and can filter the scrap iron in the cutting fluid without damaging the filter screen due to the accumulation of the scrap iron, thereby prolonging the service life of the equipment.

Drawings

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

FIG. 2 is a top view of the present invention;

FIG. 3 is a cross-sectional view taken at A-A of FIG. 2;

FIG. 4 is a partial enlarged view of FIG. 3 at B;

FIG. 5 is a cross-sectional perspective view at C-C of FIG. 2;

FIG. 6 is an enlarged view taken from the center of FIG. 5;

fig. 7 is a sectional view taken at E-E in fig. 2.

Detailed Description

In order to achieve the purpose, the invention adopts the following technical scheme: a steel pipe cutting method comprises the following steps,

a. clamping the steel pipe;

b. cutting by using a steel pipe cutting machine;

c. the cut steel tube was set aside.

The diameter of the circular knife is 500 mm.

The cutting fluid comprises chlorinated paraffin, sulfurized oleic acid, barium petroleum sulfonate, oleic acid, triethanolamine and No. 10 machine oil.

As shown in FIGS. 1 to 7, the steel pipe cutting machine in the step b comprises a first base 1, a second base 2 disposed at the left end of the first base 1, two first vertical plates 4 disposed at the front and rear sides of the second base in a vertically movable manner, a second vertical plate 5 disposed between the two first vertical plates 4, a third base 3 disposed at the left end of the second base 2, rails 6 disposed on the upper surfaces of the first base 1, the second vertical plate 5, and the third base 3, a fourth base 7 disposed at the front side of the second base 2, a sliding block 200 disposed on the upper surface of the fourth base 7 in a vertically movable manner, a stroke slot 8 disposed on the upper surface of the sliding block 200, a rodless cylinder 10 disposed at the front and rear end walls of the stroke slot 8, a water pump 11 disposed at the output end of the rodless cylinder 10, two straight plates 12 disposed at the left and right end surfaces of the water pump 11, respectively, and a water pump, A rotating shaft 13 which is rotatably arranged between the two straight plates 12, a circular cutter 14 which is fixedly arranged on the outer surface of the rotating shaft 13, a liquid outlet pipe 15 which is fixedly arranged on the upper surface of the water pump 11, a first supporting plate 16 which is fixedly arranged on the right end surface of the water pump 11, a second supporting plate 17 which is fixedly arranged on the right end surface of the first supporting plate 16, a first driving piece 18 which is fixedly arranged on the left end surface of the second supporting plate 17, a first driving shaft 19 which is arranged between the first driving piece 18 and the water pump 11, a first belt pulley 20 which is fixedly arranged on the outer surface of the first driving shaft 19, a second belt pulley 21 which is fixedly arranged on the right end of the rotating shaft 13, a conveying belt 22 which is in transmission connection between the first belt pulley 20 and the second belt pulley 21, a third supporting plate 23 which is fixedly arranged on the upper surface of the second machine base 2, a fourth supporting plate 24 which is fixedly arranged on the front end surface of the third supporting plate 23, an air cylinder, the device comprises a linkage device fixedly arranged on a fourth base 7, a filtering device arranged on a second base 2 and a lifting device arranged on the second base 2, wherein the linkage device comprises a base space 28 with an upward opening and arranged on the rear end surface of the fourth base 7, a second driving piece 29 fixedly arranged on the left end wall of the base space 28, a second driving shaft 30 arranged at the right end of the second driving piece 29, a gear 31 fixedly arranged at the left end of the second driving shaft 30, a connecting plate 32 fixedly arranged on the front end surface of the second base 2, a fifth supporting plate 33 fixedly arranged on the front end surface of the connecting plate 32, a first rack rail 34 fixedly arranged on the upper end surface of the fifth supporting plate 33, a matching groove arranged on the lower end wall of the first rack rail 34, a first rack 36 arranged in the first rack rail 34 and meshed with the gear 31, a second rack rail 37 fixedly arranged on the front end surface of the second base 2, A second rack 38 disposed in the second rack rail 37 and engaged with the gear 31, two stretching bars 400 fixedly disposed at the rear end of the second rack 38, a stretching tube 401 disposed at the rear side of the second rack 38 and engaged with the two stretching bars 400, a moving plate 402 fixedly disposed at the rear end of the stretching tube 401, a stretching spring 403 fixedly disposed between the second rack 38 and the moving plate 402, a housing space 91 disposed in the second housing 2 and penetrating left and right, a first housing space 92 disposed in the connecting plate 32 and penetrating left and right, a blanking housing 41 fixedly disposed at the lower end wall of the first housing space 91, and a push plate 42 fixedly disposed at the rear end of the moving plate 402, wherein when the second housing 2 is connected with the connecting plate 32, the first housing space 91 is connected with the second housing space 92, and the first rack 36 is fixedly connected with the lower surface of the sliding block 200; the step of pushing the iron filings into a pile is as follows, the second driving part 29 is started, the second driving part 29 drives the second driving shaft 30 to rotate clockwise, the second driving shaft 30 drives the gear 31 to rotate, the gear 31 drives the first rack 36 to move forward and drives the second rack 38 to move backward, the second rack drives the moving plate 402 and the push plate 42 to move backward, when the push plate is blocked by the iron filings, the push plate 42 moves forward under the compression of the tension spring 403 when the resistance of the iron filings is greater than the elastic force of the tension spring 403, so that after the steel pipe is cut, the iron filings are pushed to the rear side as far as possible by the push plate 42 in the process of falling the iron filings, the space of the blanking box can be saved, more iron filings can be accommodated, the cleaning interval of the blanking box is increased, and the labor cost is saved; the arrangement of the extension spring 403, the extension strip 400 and the extension pipe 401 can prevent the iron filings from moving backwards when the obstruction of the iron filings is too large, so that the damage of the iron filings to the push plate 42 is avoided, and because the resistance of the lower part of the iron filings stack to the push plate 42 is larger than that of the upper part when the iron filings stack is pushed, the upper part of the push plate 42 is arranged into a bevel edge, so that the material for manufacturing the push plate 42 can be saved, and the use of the push plate 42 cannot be influenced due to the reduction of the material; thereby drive two racks through a gear and remove and can cut the steel pipe at the circular knife, iron fillings drop the push pedal 42 can push away one pile to iron fillings when the workbin to clearance iron fillings are more timely.

The filtering device comprises a filtering shell 43 fixedly arranged on the right end face of the second base 2, a filtering space 44, a rotating disc 45, a driver 500, four rotating blades 46, a plurality of small holes 47, a groove 48, a first inlet pipe 49, a second inlet pipe 650, a filtering plate 145, a stainless steel bent plate 146, a plurality of through holes 147 and a flared opening 148, wherein the filtering space 44 is arranged in the filtering shell 43, the rotating disc 45 is rotatably arranged on the front end wall and the rear end wall of the filtering space 44, the driver 500 is fixedly arranged on the front end face of the filtering shell 43 and is connected with the rotating disc 45, the four rotating blades 46 are fixedly arranged on the outer surface of the rotating disc 45, the plurality of small holes 47 are arranged on the rotating blades 46, the groove 48 is arranged on the surface of the rotating blades 46, the first inlet pipe 49 is arranged between the filtering space 44 and the first shell space 91 in a communicating manner, the second inlet pipe 650 is arranged between the filtering space 44 and the first shell space 91 in a communicating manner, the filter plate 145 is arranged on the inner wall of the filtering space 44, the stainless steel bent plate 146 is fixedly arranged between the filter plate and the filtering space 44, the plurality of through holes 147 are arranged on the filter plate, and the flared opening 148 is fixedly arranged on the upper end wall of the filtering space 44; the driver 500 is started, the driver 500 drives the rotating disc 45 to rotate, and the rotating disc 45 drives the rotating blades 46 to rotate; the cutting fluid can pass through the small holes 47, and the scrap iron is blocked on the rotating blade 46; the scrap iron entering the groove 48 can be thrown out through centrifugal force generated by rotation of the rotating blade 46 through the groove 48, the centrifugal force borne by the scrap iron can be strongest by arranging the groove 48 at the farthest position of the rotating blade 46 away from the rotating center, and the scrap iron can be thrown into the first feeding pipe 49 and then enter the blanking box for scrap iron collection; the surface of the rotating blade 46 contacting the falling scrap iron is set to be an inclined surface, so that the falling scrap iron can slide into the groove 48, and the scrap iron can be thrown into the first inlet pipe 49 conveniently; the upper surface of the filter plate is arranged to be an inclined surface, so that small scrap iron falling on the filter plate can be flushed into the second inlet pipe under the falling impact force of the cutting fluid, and the filter plate can be shaken when the cutting fluid impacts the filter plate through the arrangement of the stainless steel bent plate, so that the small scrap iron on the filter plate is shaken into the second inlet pipe; the scrap iron of cutting can be smoothly fed into the filtering space through the flaring, and the condition that the scrap iron falls outside the equipment due to the fact that the opening of the upper end of the filtering space is too small is avoided, so that the later-period cleaning work is increased, and the labor cost is increased.

The lifting device comprises a first sloping plate 149 and a second sloping plate 150 which are fixedly arranged on the rear end surface of the sliding plate 200, and the second sloping plate 150 is fixedly arranged on the front end surface of the front first vertical plate 4 and is matched with the first sloping plate 149; after the steel pipe is cut, the sliding plate 200 is moved forwards, the sliding plate 200 drives the first inclined plate 149 to move forwards, the first inclined plate 149 drives the second inclined plate 150 to move downwards, the second inclined plate 150 drives the first vertical plate 4 to move downwards, and the first vertical plate 4 drives the rail to move downwards, so that one end of the steel pipe is inclined downwards, cutting fluid and scrap iron on the pipe orifice of the steel pipe flow out of the pipe orifice of the steel pipe, subsequent cleaning of the pipe orifice of the steel pipe is not needed, and labor cost is reduced; the inclined planes of the two inclined plates are matched to enable the track to descend when the sliding block 200 cuts the steel pipe to move forwards, so that one end of the steel pipe can be timely toppled downwards, and residual cutting fluid and scrap iron in the steel pipe can flow out.

A water suction pipe 300 is communicated between the lower end wall of the filtering space 44 and the water pump 11; the cutting fluid filtered in the filtering space 44 enters the water pump 11 through the water suction pipe 300, and then flows out through the liquid outlet pipe 15 to spray the steel pipe being cut, so that the effect of recycling the cutting fluid can be achieved, and resources are saved.

The first driving member 18, the second driving member 29 and the driver 500 are not only electric motors, but also driving devices for driving the first driving shaft 19, the second driving shaft 30 and the rotating disc 45, and manual driving.

The upper surface of the track 6 is provided with an arc-shaped groove 100 and a rectangular groove 101 arranged at the lower end of the arc-shaped groove 100.

The upper end wall of the first rack rail 34 is provided with a trapezoidal groove, and the upper end surface of the first rack is provided with a trapezoidal block 505 matched with the trapezoidal groove.

The working principle is as follows: the steel pipe is cut by placing the steel pipe on the track 6, starting the air cylinder 25, the air cylinder 25 driving the pressing block 26 to move downwards to press the steel pipe placed on the track 6, starting the linkage device, starting the second driving member 29, the second driving member 29 driving the gear 31 to rotate through the second driving shaft 30, enabling the sliding block 200 to move backwards to start the lifting device, starting the rodless air cylinder 10 to drive the sliding block 200 to move backwards, starting the first driving member 18, the first driving member 18 driving the first belt wheel 20 to rotate through the first driving shaft 19, the first belt wheel 20 driving the second belt wheel 21 to rotate, the second belt wheel 21 driving the circular knife 14 to rotate, cutting the pressed steel pipe, simultaneously starting the water pump 11, spraying the cutting fluid from the liquid outlet pipe 15 by the water pump 11, enabling the sliding block 200 to move forwards to start the lifting device after the steel pipe is cut, enabling the first vertical plate 4 and the second vertical plate 5 to move downwards, the rail 6 on the second vertical plate 5 also moves downwards, and the filtering device is started to filter the scrap iron in the cutting fluid; starting the second driving part 29, the second driving part 29 drives the second driving shaft 30 to rotate clockwise, the second driving shaft 30 drives the gear 31 to rotate, the gear 31 drives the first rack 36 to move forward, the second rack 38 to move backward, the second rack drives the moving plate 402 and the push plate 42 to move backward, when the push plate is blocked by iron chips, when the resistance of the iron chips is greater than the elastic force of the extension spring 403, the push plate 42 moves forward under the compression of the extension spring 403, so that after the steel pipe is cut, the iron chips are pushed to the rear side as far as possible by the push plate 42 in the falling process of the iron chips, the driver 500 is started, the driver 500 drives the rotating disc 45 to rotate, and the rotating disc 45 drives the rotating blades 46 to rotate; can let the cutting fluid pass through a plurality of apertures 47, let iron fillings be blockked on rotary vane 46, after the steel pipe has been cut, through moving sliding plate 200 forward, sliding plate 200 drives first swash plate 149 and moves forward, first swash plate 149 drives second swash plate 150 and moves down, second swash plate 150 drives first riser 4 and moves down, first riser 4 drives track and moves down, thereby make the one end of steel pipe topple over downwards, thereby make cutting fluid and iron fillings on the steel pipe mouth of pipe flow out from the steel pipe mouth of pipe, through absorbing water pipe 300 with filterable cutting fluid in the filter space 44 through absorbing water pipe 300 and entering water pump 11, the rethread drain pipe 15 flows out and sprays the steel pipe of cutting at present.

Claims

1. A steel pipe cutting method is characterized in that: the method comprises the following steps of,

a. clamping the steel pipe;

b. the steel pipe cutting machine in the step b comprises a first base (1), a second base (2) arranged at the left end of the first base (1), two first vertical plates (4), a second vertical plate (5), a third base (3) fixedly arranged at the left end of the second base (2), rails (6) fixedly arranged on the upper surfaces of the first base (1), the second vertical plates (5) and the third base (3), a fourth base (7) arranged on the front side of the second base (2), a sliding block (200) arranged on the upper surface of the fourth base (7) in a back-and-forth moving manner, a rodless cylinder (10), a water pump (11) fixedly arranged on the output end of the rodless cylinder (10), a rotating shaft (13), a circular knife (14) fixedly arranged on the outer surface of the rotating shaft (13), a liquid outlet pipe (15) fixedly arranged on the upper surface of the water pump (11), a liquid outlet pipe, The automatic water pump comprises a first driving part (18), a first driving shaft (19) arranged between the first driving part (18) and a water pump (11), a first belt wheel (20) fixedly arranged on the outer surface of the first driving shaft (19), a second belt wheel (21) fixedly arranged at the right end of a rotating shaft (13), a conveying belt (22) in transmission connection between the first belt wheel (20) and the second belt wheel (21), an air cylinder (25), and a pressing block (26) fixedly arranged at the output end of the air cylinder (25), and further comprises a linkage device fixedly arranged on a fourth base (7), a filtering device arranged on the second base (2), and a lifting device arranged on the second base (2), wherein the linkage device comprises a base space (28) arranged on the rear end surface of the fourth base (7) and provided with an upward opening, a second driving part (29) fixedly arranged on the left end wall of the base space (28), a second driving shaft (30) arranged at the right end of the second driving part (29), A gear (31) fixedly arranged at the left end of the second driving shaft (30); the steel pipe cutting method comprises the following steps of placing a steel pipe on a rail (6), starting an air cylinder (25), driving a pressing block (26) to move downwards by the air cylinder (25), pressing the steel pipe placed on the rail (6), starting a linkage device, starting a second driving piece (29), driving a gear (31) to rotate by the second driving piece (29) through a second driving shaft (30), enabling a sliding block (200) to move backwards to start a lifting device, starting a rodless air cylinder (10), driving a water pump (11) to move backwards, starting a first driving piece (18), driving a first belt wheel (20) to rotate by the first driving piece (18) through a first driving shaft (19), driving a second belt wheel (21) to rotate by the first belt wheel (20), driving a circular knife (14) to rotate by the second belt wheel (21), cutting the pressed steel pipe, starting the water pump (11), and spraying cutting fluid out of the pipe (15) by the water pump (11), after the steel pipe is cut, the sliding block (200) moves forwards to start the lifting device, so that the first vertical plate (4) and the second vertical plate (5) move downwards, the track (6) on the second vertical plate (5) also moves downwards, and the filtering device is started to filter scrap iron in the cutting fluid;

the cut steel tube was set aside.

2. The steel pipe cutting method according to claim 1, characterized in that: the cutting blade of the steel pipe cutting machine is composed of a circular saw blade.

3. The steel pipe cutting method according to claim 1, characterized in that: the diameter of the circular knife (14) is 500 mm.

4. The steel pipe cutting method according to claim 1, characterized in that: the cutting fluid comprises chlorinated paraffin, sulfurized oleic acid, barium petroleum sulfonate, oleic acid, triethanolamine and No. 10 machine oil.

5. The steel pipe cutting method according to claim 1, characterized in that: the filtering device comprises a filtering shell (43) fixedly arranged on the right end face of the second base (2), a filtering space (44) arranged in the filtering shell (43), a rotating disc (45) rotatably arranged on the front end wall and the rear end wall of the filtering space (44), a driver (500) fixedly arranged on the front end face of the filtering shell (43) and connected with the rotating disc (45), four rotating blades (46) fixedly arranged on the outer surface of the rotating disc (45), a plurality of small holes (47) arranged on the rotating blades (46), a groove (48) arranged on the surface of the rotating blades (46), a first shell space which is arranged in the second base (2) and is communicated with the left and the right, a first inlet pipe (49) communicated between the filtering space (44) and the first shell space, and a second inlet pipe (650) communicated between the filtering space (44) and the first shell space, A filter plate (145) arranged on the inner wall of the filtering space (44), a stainless steel bent plate (146) fixedly arranged between the filter plate (145) and the filtering space (44), a plurality of through holes (147) arranged on the filter plate (145), and a flared opening (148) fixedly arranged on the upper end wall of the filtering space (44);

the step of filtering the scrap iron in the cutting fluid is as follows, a driver (500) is started, the driver (500) drives a rotating disc (45) to rotate, and the rotating disc (45) drives a rotating blade (46) to rotate; the cutting fluid can pass through the small holes (47), and the iron chips are blocked on the rotating blade (46).

6. The steel pipe cutting method according to claim 1, characterized in that: the lifting device comprises a first inclined plate (149) fixedly arranged on the rear end face of the sliding plate (200) and a second inclined plate (150) fixedly arranged on the front end face of the front side first vertical plate (4) and matched with the first inclined plate (149);

the step of letting remaining cutting fluid and iron fillings in the steel pipe after the cutting flow out is as follows, through moving sliding plate (200) forward, sliding plate (200) drive first swash plate (149) and move forward, and first swash plate (149) drive second swash plate (150) and move down, and second swash plate (150) drive first riser (4) and move down, and first riser (4) drive track is moved down.