Automatic fire-fighting pipeline grooving machine

Abstract

The application relates to the technical field of groove pressing machines, in particular to an automatic fire-fighting pipeline groove pressing machine, which comprises a bent plate and supporting legs, the lower ends of the bent plate are fixedly connected with the supporting legs in a symmetrical mode, the left sides of the supporting legs on the two sides are fixedly connected with a bottom plate, through holes are symmetrically arranged on the surfaces of the supporting legs on the two sides, a reset device is arranged on the left side of the bent plate, a plurality of feeding devices are arranged at the right end of the bent plate, and a plurality of discharging devices are arranged on the outer wall of the bent plate. When the groove plate is no longer abutted against the inclined plates on the two sides, the inclined plates on the two sides can be inclined downward under the action of gravity, the fire-fighting pipelines can fall onto the surface of the discharging plate, the discharging plate can simultaneously convey the three groups of fire-fighting pipelines out through the inclined surface, the multiple groups of fire-fighting pipelines can be synchronously conveyed and discharged, long-time conveying is not needed, the efficiency is improved, and the application is more convenient to use.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of groove pressing machine, in particular to a kind of automatic groove pressing machine for fire pipeline. BACKGROUND

[0002] Groove pressing machine is also called groove rolling machine or groove opening machine, this product is the special tool for pipe pretreatment when hook groove joint (trench pipe fitting) is used as pipe connecting piece. The working principle of groove pressing machine is that the concave pressing wheel drives the pipe to rotate, and the convex pressing wheel slowly presses the pipe under the action of oil cylinder, so as to form the required groove for installation. It can be used for the installation of fire, tap water, mine and other pipelines.

[0003] Firstly, in the prior art, when the fire pipeline is pressed, it needs to be transported for a long time to the position of the groove pressing machine for processing, and after processing, the pipeline is transported out, which leads to the need of the equipment in the prior art for a long time transmission, reduces the working efficiency.

[0004] At the same time, in the prior art, when the fire pipeline is pressed, after pressing one end of the pipeline, the motor needs to be reversed to drive the pipeline away from the groove pressing machine for unloading, which leads to the need of the motor for continuous forward and reverse rotation, reduces the service life of the motor.

[0005] Secondly, in the prior art, when the fire pipeline is pressed, the pipeline needs to be transported for a long time, which reduces the efficiency of the existing groove pressing equipment during transportation, and leads to the inconvenience of the process of transporting the pipeline in the prior art, which is inconvenient to use. SUMMARY

[0006] The purpose of the present application is to solve the problems of long-time transportation of pipeline, low working efficiency, continuous forward and reverse rotation of motor, low service life and low efficiency of transportation, and to provide an automatic groove pressing machine for fire pipeline.

[0007] To achieve the above purpose, the present application provides the following technical scheme:

[0008] An automatic groove pressing machine for fire pipeline is designed, which comprises a bent plate and a supporting leg, the lower end of the bent plate is fixedly connected with the supporting leg in symmetry, the left side of the supporting leg is fixedly connected with the bottom plate, the surface of the supporting leg is symmetrically provided with a through hole, the left side of the bent plate is provided with a reset device, the right end of the bent plate is provided with a plurality of feeding devices, the outer wall of the bent plate is provided with a plurality of discharging devices, the right side of the bent plate is fixedly connected with a plurality of supporting plates, the upper end of the bent plate is fixedly connected with a discharging plate, the left side of the bent plate is fixedly connected with a plurality of square plates, and the lower end of the square plate is fixedly connected with a first air cylinder.

[0009] Preferably, the blanking device comprises a second air cylinder, an inclined plate, a sliding rod, a groove plate and a ball.

[0010] The telescopic end of the second air cylinder penetrates the bent plate, the second air cylinder is fixedly connected with the bottom plate, the telescopic end of the second air cylinder is fixedly connected with the groove plate, the upper end of the groove plate abuts against two inclined plates, the rotating shafts of the two inclined plates are movably connected with the bent plate and the support plate through bearings respectively, and the outer wall of the inclined plate is movably connected with a plurality of balls through a plurality of grooves.

[0011] Preferably, the plurality of balls are in close contact with a fire-fighting pipeline, one end of the fire-fighting pipeline is sleeved with a groove roller, and one end of the groove roller is rotatably connected with the bent plate through a bearing.

[0012] Preferably, one end of the groove roller is fixedly connected with the output shaft of the first motor, and the first motor is fixedly connected with the bent plate through a motor bracket.

[0013] Preferably, the telescopic end of the first air cylinder is fixedly connected with a support, the support is rotatably connected with the concave pressing wheel through a pin shaft, and the protruding part of the support is slidably connected with a vertical rod.

[0014] Preferably, the lower end of the vertical rod is fixedly connected with a base, and the base is fixedly connected with the bent plate.

[0015] Preferably, the reset device comprises a horizontal plate, a second motor, a push rod, a round rod, a straight rod and a round plate.

[0016] The second motor is fixedly connected with the bent plate through a motor bracket, the output shaft of the second motor is fixedly connected with one end of the push rod, a plurality of round rods are slidably connected with through holes formed in the surface of the bent plate, one end of each of the round rods is fixedly connected with the horizontal plate, the upper end of the horizontal plate is fixedly connected with a round plate in a symmetrical manner, the round plate is slidably connected with a straight rod through a through hole formed in the surface of the round plate, and one end of each of the straight rods is fixedly connected with the bent plate.

[0017] Preferably, the feeding device comprises a gear, a frame, a support arm, a connecting plate, a semicircular block, a third motor, a rubber wheel, a supporting plate and a spring.

[0018] The left end of the supporting plate is fixedly connected with the bending plate, the upper end of the supporting plate is fixedly connected with a plurality of supporting arms, the supporting arms are fixedly connected with one end of two frames through rotating shafts respectively, the rotating shafts of the supporting arms are fixedly connected with rotating parts of gears, the gears on both sides are engaged, the outer walls of the frames are fixedly connected with semicircular blocks, the semicircular blocks are movably connected with connecting plates through rotating shafts, the connecting plates on both sides are fixedly connected with two ends of springs respectively, the outer walls of the frames are rotatably connected with rotating parts of rubber wheels through bearings, the rotating shaft of the rubber wheel on one side is fixedly connected with the output shaft of the third motor, and the third motor is fixedly connected with the frame through the motor frame.

[0019] The automatic fire-fighting pipeline pressing groove machine has the beneficial effects that: through the cooperation of the blanking device and the feeding device, three groups of fire-fighting pipelines are simultaneously transported through the conveying belt and other equipment, one end of one group of fire-fighting pipelines is tightly abutted against the rubber wheels on both sides, the fire-fighting pipelines can push the rubber wheels on both sides, the rubber wheels on both sides can drive the frames on both sides to rotate a certain angle with the hinge joints of the supporting arms as the center, the frames on both sides can drive the connecting plates on both sides to move synchronously through the semicircular blocks on both sides, the connecting plates on both sides can stretch the springs, the rubber wheels on both sides can be tightly abutted against the outer walls of the fire-fighting pipelines, the third motor is controlled to work, the output shaft of the third motor is driven to rotate to drive the rubber wheel on one side to rotate, the rubber wheels on both sides can drive the fire-fighting pipelines to move, one group of fire-fighting pipelines can be transported to the surfaces of the inclined plates on both sides, the rolling balls on the surfaces of the inclined plates on both sides can be attached to the surfaces of the fire-fighting pipelines, three groups of fire-fighting pipelines can be transported to the positions where the outer walls of the second fire-fighting pipeline in the three groups of fire-fighting pipelines are attached to the surfaces of the groove rollers, at this time, the outer walls of the second fire-fighting pipeline are attached to the outer walls of the first fire-fighting pipeline, three groups of fire-fighting pipelines can be simultaneously transported, the transportation process can be faster, three groups of pipelines can be simultaneously blanked, and the working efficiency of the automatic fire-fighting pipeline pressing groove machine is improved.

[0020] By coordinating the reset device, bending plate, and grooved rollers, after the grooving operation is completed, the second motor is controlled to operate, causing the output shaft of the second motor to rotate and drive the push rod to rotate. One end of the push rod can push the horizontal plate to move, which in turn drives the three round rods to move synchronously. One end of the three round rods can then push the three fire-fighting pipes to move, so that one end of the three fire-fighting pipes is no longer engaged with the three grooved rollers. The three sets of second cylinders are then controlled to operate, causing the telescopic ends of the second cylinders to shorten and drive the grooved plate downward. When the grooved plate is no longer pressed against the inclined plates on both sides, the inclined plates on both sides can tilt downward under the action of gravity, allowing the fire-fighting pipes to fall onto the surface of the discharge plate. The discharge plate can then transport the three sets of fire-fighting pipes out simultaneously through the inclined surface. The three sets of fire-fighting pipes can be pushed back without the need for motor reversal for transmission, thus improving the service life of the invention.

[0021] By coordinating the feeding and unloading devices, three sets of second cylinders are controlled to operate. The telescopic ends of the second cylinders shorten, causing the grooved plate to move downwards. When the grooved plate is no longer pressed against the inclined plates on both sides, the inclined plates on both sides can tilt downwards under the action of gravity, allowing the fire-fighting pipes to fall onto the surface of the discharge plate. The discharge plate can then transport the three sets of fire-fighting pipes simultaneously through the inclined surface. According to the above operation, the grooved plate can push the inclined plates on both sides back to their original positions. After the inclined plates return to their original positions, continuous operation can be performed. This allows for the synchronous transport and unloading of multiple sets of fire-fighting pipes without the need for long-term conveying, improving efficiency and making the invention more convenient to use. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the external structure of the present invention;

[0023] Figure 2 For the present invention Figure 1 A top-down view diagram;

[0024] Figure 3 For the present invention Figure 1 A schematic diagram of the state on the left side;

[0025] Figure 4 For the present invention Figure 1 Schematic diagram showing the state of the area without fire-fighting pipes;

[0026] Figure 5 For the present invention Figure 1 Mid-rear view diagram;

[0027] Figure 6 For the present invention Figure 1 Mid-top view diagram;

[0028] Figure 7 For the present invention Figure 1The schematic diagram of the feeding device in the middle;

[0029] Figure 8 For the invention Figure 1 The schematic diagram of the feeding device in the middle;

[0030] Figure 9 For the invention Figure 1 The schematic diagram of the feeding device in the middle;

[0031] Figure 10 For the invention Figure 6 The schematic diagram of part A in the middle;

[0032] Figure 11 For the invention Figure 4 The schematic diagram of part B in the middle.

[0033] In the figure: 1, bending plate, 2, feeding device, 201, gear, 202, frame, 203, support arm, 204, connecting plate, 205, semicircular block, 206, third motor, 207, rubber wheel, 208, supporting plate, 209, spring, 3, supporting plate, 4, feeding device, 401, second cylinder, 402, inclined plate, 403, sliding rod, 404, groove plate, 405, ball, 5, fire pipe, 6, bottom plate, 7, supporting leg, 8, discharging plate, 9, reset device, 901, horizontal plate, 902, second motor, 903, push rod, 904, round rod, 905, straight rod, 906, round plate, 10, base, 11, first motor, 12, groove roller, 13, square plate, 14, vertical rod, 15, first cylinder, 16, bracket, 17, concave pressure wheel. DETAILED DESCRIPTION

[0034] The invention will be further described below with reference to the accompanying drawings:

[0035] Referring to the accompanying Figures 1-11 : In this embodiment, an automatic grooving machine for fire pipes comprises a bending plate 1 and a supporting leg 7, the lower end of the bending plate 1 is fixedly connected to the supporting leg 7, the left side of each of the two supporting legs 7 is fixedly connected to the bottom plate 6, through holes are symmetrically formed in the surface of each of the two supporting legs 7, the through holes in the surface of each of the two supporting legs 7 can be fixed to the ground by bolts, the left side of the bending plate 1 is provided with a reset device 9, the right end of the bending plate 1 is provided with a plurality of feeding devices 2, the outer wall of the bending plate 1 is provided with a plurality of feeding devices 4, the right side of the bending plate 1 is fixedly connected to a plurality of supporting plates 3 at the upper end, the supporting plates 3 are six in number, so that the bending plate 1 can process three fire pipes 5 at a time, the upper end of the bending plate 1 is fixedly connected to a discharging plate 8, the discharging plate 8 can transport the processed fire pipes 5 out, the upper end of the left side of the bending plate 1 is fixedly connected to a plurality of square plates 13, the square plates 13 are three in number, the first cylinder 15 can meet the working needs according to actual needs, the first cylinder 15 can drive the bracket 16 to move downward, and the lower end of each of the square plates 13 is fixedly connected to the first cylinder 15.

[0036] The blanking device 4 comprises a second air cylinder 401, an inclined plate 402, a sliding rod 403, a groove plate 404 and a ball 405;

[0037] The telescopic end of the second air cylinder 401 penetrates the bent plate 1, and the second air cylinder 401 can meet the working needs according to actual needs. The second air cylinder 401 can drive the groove plate 404 to move. The second air cylinder 401 is fixedly connected with the bottom plate 6. The telescopic end of the second air cylinder 401 is fixedly connected with the groove plate 404. The upper end of the groove plate 404 abuts against the two inclined plates 402. The groove plate 404 is abutted against the two inclined plates 402 through the inclined surface, so that the angle of the two inclined plates 402 can be fixed. The two ends of the rotating shaft of the two inclined plates 402 are movably connected with the bent plate 1 and the supporting plate 3 through bearings. The outer wall of the inclined plate 402 is movably connected with the plurality of balls 405 through the plurality of grooves. The plurality of balls 405 can support the fire-fighting pipeline 5 to move.

[0038] Through the cooperation of the blanking device 4 and the feeding device 2, the three groups of fire-fighting pipelines 5 are simultaneously transported through the conveying belt and other equipment. One end of one group of fire-fighting pipelines 5 abuts against the two rubber wheels 207, so that the fire-fighting pipeline 5 can push the two rubber wheels 207 to the two sides. The two rubber wheels 207 can drive the two frames 202 to rotate a certain angle with the hinge of the supporting arm 203 as the center. The two frames 202 can drive the two connecting plates 204 to move synchronously through the two semicircular blocks 205. The two connecting plates 204 can stretch the springs 209. The two rubber wheels 207 can abut against the outer wall of the fire-fighting pipeline 5. The third motor 206 is controlled to work, so that the output shaft of the third motor 206 rotates to drive one side of the rubber wheel 207 to rotate. The two rubber wheels 207 can drive the fire-fighting pipeline 5 to move. One group of fire-fighting pipelines 5 can be transported to the surface of the two inclined plates 402. The plurality of balls 405 on the surface of the two inclined plates 402 can be attached to the surface of the fire-fighting pipeline 5. The three groups of fire-fighting pipelines 5 can be transported to the position where the one end is sleeved with the surface of the groove roller 12. At this time, the two rubber wheels 207 can be attached to the outer wall of the second fire-fighting pipeline 5 in the three groups of fire-fighting pipelines 5. One end of the second fire-fighting pipeline 5 is attached to one end of the first fire-fighting pipeline 5. Through synchronous transportation of the three groups of fire-fighting pipelines 5, the transportation process can be faster, and three groups of pipelines can be blanked at the same time, so that the working efficiency of the present application is improved.

[0039] The plurality of balls 405 are attached to the fire-fighting pipeline 5. One end of the fire-fighting pipeline 5 is sleeved with the groove roller 12. The outer wall of the groove roller 12 is provided with a groove. The width of the groove is slightly larger than the width of the concave roller 17. One end of the groove roller 12 is rotatably connected with the bent plate 1 through a bearing, so as to fix the rotating center of the groove roller 12.

[0040] One end of the groove roller 12 is fixedly connected with the output shaft of the first motor 11, the first motor 11 meets the working requirement according to actual demand, the first motor 11 can drive the groove roller 12 to rotate, and the first motor 11 is fixedly connected with the bending plate 1 through a motor frame.

[0041] The telescopic end of the first cylinder 15 is fixedly connected with a support 16, the support 16 is rotationally connected with a concave pressure wheel 17 through a pin shaft, the protruding part of the support 16 is slidingly connected with the vertical rod 14, and the vertical rod 14 can fix the movement track of the support 16.

[0042] The lower end of the vertical rod 14 is fixedly connected with the base 10, and the base 10 is fixedly connected with the bending plate 1.

[0043] The reset device 9 comprises a horizontal plate 901, a second motor 902, a push rod 903, a circular rod 904, a straight rod 905 and a circular plate 906.

[0044] The second motor 902 is fixedly connected with the bending plate 1 through a motor frame, the second motor 902 meets the working requirement according to actual demand, the second motor 902 can drive the push rod 903 to rotate by a certain angle, the output shaft of the second motor 902 is fixedly connected with one end of the push rod 903, the push rod 903 can push the horizontal plate 901 to move, three circular rods 904 are arranged, the circular rods 904 can push three groups of fire-fighting pipes 5 to separate from the groove roller 12, a plurality of circular rods 904 are slidingly connected with through holes formed in the surface of the bending plate 1, one end of each of the circular rods 904 is fixedly connected with the horizontal plate 901, the upper end of the horizontal plate 901 is fixedly connected with the circular plates 906 in a symmetrical mode, the circular plates 906 are slidingly connected with the straight rods 905 through through holes formed in the surface, the straight rods 905 can fix the movement track of the two circular plates 906, and one end of each of the straight rods 905 is fixedly connected with the bending plate 1.

[0045] Through the cooperation of the reset device 9, the bending plate 1 and the groove roller 12, when the pressing groove operation is completed, the second motor 902 is controlled to work, the output shaft of the second motor 902 is rotated to drive the push rod 903 to rotate, one end of the push rod 903 can push the horizontal plate 901 to move, the horizontal plate 901 can drive the three round rods 904 to move synchronously, one end of the three round rods 904 can push the three fire-fighting pipes 5 to move, one end of the three fire-fighting pipes 5 is no longer sleeved with the three groove rollers 12, three second air cylinders 401 are controlled to work, the telescopic end of the second air cylinder 401 is shortened to drive the groove plate 404 to move downward, when the groove plate 404 is no longer abutted against the two inclined plates 402, the two inclined plates 402 can be inclined downward under the action of gravity, the fire-fighting pipe 5 can fall to the surface of the discharge plate 8, the discharge plate 8 can transport the three fire-fighting pipes 5 out at the same time through the inclined surface, the three fire-fighting pipes 5 can be pushed back, the motor does not need to be reversed to drive, and therefore the service life of the present application can be improved.

[0046] The feeding device 2 comprises a gear 201, a frame 202, a support arm 203, a connecting plate 204, a semicircular block 205, a third motor 206, a rubber wheel 207, a supporting plate 208 and a spring 209.

[0047] The left end of the supporting plate 208 is fixedly connected with the bending plate 1, the upper end of the supporting plate 208 is fixedly connected with a plurality of support arms 203, the supporting plate 208 is provided with three, the support arms 203 are respectively fixedly connected with one end of the two frames 202 through rotating shafts, the four support arms 203 can support the two frames 202 to rotate by a certain angle, the rotating shafts of the support arms 203 are fixedly connected with the rotating parts of the gears 201, the two gears 201 can make the two frames 202 rotate synchronously and prevent the two frames 202 from falling down, the two gears 201 are engaged with each other, the outer walls of the frames 202 are all fixedly connected with the semicircular blocks 205, the semicircular blocks 205 are all movably connected with the connecting plates 204 through rotating shafts, the two connecting plates 204 are respectively fixedly connected with the two ends of the spring 209, the spring 209 can pull the two frames 202 to converge to the center, the two frames 202 can drive the two rubber wheels 207 to clamp the fire-fighting pipe 5, the outer walls of the frames 202 are all rotatably connected with the rotating parts of the rubber wheels 207 through bearings, the rotating shaft of one side of the rubber wheel 207 penetrates the frame 202 and is fixedly connected with the output shaft of the third motor 206, the third motor 206 can drive one side of the rubber wheel 207 to rotate, and the third motor 206 is fixedly connected with the frame 202 through a motor bracket.

[0048] Through the cooperation of the feeding device 2 and the discharging device 4, the second cylinders 401 are controlled to work, so that the extension and retraction ends of the second cylinders 401 are shortened to drive the groove plate 404 to move downward, when the groove plate 404 is no longer in abutment with the two side inclined plates 402, the two side inclined plates 402 can be inclined downward under the action of gravity, so that the fire-fighting pipes 5 can fall onto the surface of the discharging plate 8, and the discharging plate 8 can transport the three groups of fire-fighting pipes 5 out at the same time through the inclined surface. According to the above operation, the groove plate 404 can push the two side inclined plates 402 back to the original position, and after the inclined plates 402 return to the original position, continuous operation can be performed. Through synchronous transportation and discharging of multiple groups of fire-fighting pipes 5, long-time conveying is not needed, the efficiency is improved, and the application is more convenient to use.

[0049] Working principle:

[0050] When the fire-fighting pipes are grooved:

[0051] Transportation process:

[0052] The three groups of fire-fighting pipes 5 are simultaneously transported through a conveyor belt or the like, and the length of the fire-fighting pipes 5 needs to be the same as that of the inclined plates 402. One end of one group of fire-fighting pipes 5 is in abutment with the two side rubber wheels 207, so that the fire-fighting pipes 5 can push the two side rubber wheels 207, the two side rubber wheels 207 can drive the two side frames 202 to rotate a certain angle around the hinge joints with the supporting arms 203, the two side frames 202 can drive the two side connecting plates 204 to move synchronously through the two side semicircular blocks 205, the two side connecting plates 204 can stretch the springs 209, and the two side rubber wheels 207 can be in abutment with the outer walls of the fire-fighting pipes 5. The third motor 206 is controlled to work, the output shaft of the third motor 206 is rotated to drive one side rubber wheel 207 to rotate, the two side rubber wheels 207 can drive the fire-fighting pipes 5 to move, one group of fire-fighting pipes 5 can be transported to the surfaces of the two side inclined plates 402, a plurality of balls 405 on the surfaces of the two side inclined plates 402 can be in close contact with the surfaces of the fire-fighting pipes 5, and the three groups of fire-fighting pipes 5 can be transported to a position where one end is sleeved with the surface of the groove roller 12. The other two groups of fire-fighting pipes 5 are simultaneously fed synchronously through the above operation, and meanwhile, the remaining fire-fighting pipes 5 are continuously fed according to the above operation.

[0053] Grooving process:

[0054] The three groups of first cylinders 15 are controlled to work, the extension and retraction ends of the three groups of first cylinders 15 are elongated to drive the supports 16 to move downward synchronously, the three groups of supports 16 can drive the groove pressing wheels 17 to move downward, the three groups of groove pressing wheels 17 slowly press the fire-fighting pipes 5, the groove pressing wheels 17 are matched with the grooves on the surface of the groove roller 12, and one end of the fire-fighting pipes 5 is grooved.

[0055] Resetting the blanking process:

[0056] When the pressing groove operation is completed, the second motor 902 is controlled to work, so that the output shaft of the second motor 902 rotates to drive the push rod 903 to rotate, so that one end of the push rod 903 can push the horizontal plate 901 to move, so that the horizontal plate 901 can drive the three round rods 904 to move synchronously, so that one end of the three fire-fighting pipes 5 can move away from the three groove rollers 12, and the three groups of second air cylinders 401 are controlled to work, so that the telescopic end of the second air cylinder 401 shortens to drive the groove plate 404 to move downward, the downward movement of the groove plate 404 can provide space for the two side inclined plates 402 to rotate, and the two side inclined plates 402 can be inclined downward under the action of gravity, so that the fire-fighting pipes 5 can fall onto the surface of the discharge plate 8, and the discharge plate 8 can transport the three groups of fire-fighting pipes 5 out at the same time through the inclined surface, according to the above operation, the groove plate 404 can push the two side inclined plates 402 back to the original position, and after the inclined plates 402 return to the original position, continuous operation can be performed.

[0057] Although the present application has been illustrated and described with reference to the preferred embodiments, it should be understood by those skilled in the art that various changes in form and details can be made therein without departing from the scope of the claims.

Claims

1. An automatic grooving machine for fire-fighting pipelines, comprising a bending plate (1) and supporting legs (7), wherein the lower end of the bending plate (1) is symmetrically and fixedly connected to the supporting legs (7), characterized in that: The left sides of the two supporting legs (7) are fixedly connected to the base plate (6). The surfaces of the two supporting legs (7) are symmetrically provided with through holes. The left side of the bent plate (1) is provided with a reset device (9). The right end of the bent plate (1) is provided with multiple sets of feeding devices (2). The outer wall of the bent plate (1) is provided with multiple sets of unloading devices (4). The upper right side of the bent plate (1) is fixedly connected with multiple sets of support plates (3). The upper end of the bent plate (1) is fixedly connected with a discharge plate (8). The upper left side of the bent plate (1) is fixedly connected with multiple square plates (13). The lower end of each square plate (13) is fixedly connected with a first cylinder (15). The feeding device (4) includes a second cylinder (401), an inclined plate (402), a slide bar (403), a grooved plate (404), and a ball bearing (405). The telescopic end of the second cylinder (401) passes through the bent plate (1). The second cylinder (401) is fixedly connected to the base plate (6). The telescopic end of the second cylinder (401) is fixedly connected to the groove plate (404). The upper end of the groove plate (404) abuts against the two inclined plates (402). The two ends of the rotation shaft of the inclined plates (402) on both sides are movably connected to the bent plate (1) and the support plate (3) respectively through bearings. The inner side of the outer wall of the inclined plates (402) in the same group is movably connected to multiple balls (405) through multiple sets of grooves. Multiple balls (405) are attached to the fire pipe (5), one end of the fire pipe (5) is sleeved with the grooved roller (12), and one end of the grooved roller (12) is rotatably connected to the bending plate (1) through a bearing; The telescopic end of the first cylinder (15) is fixedly connected to a bracket (16), the bracket (16) is rotatably connected to the concave pressure wheel (17) through a pin, and the protruding part of the bracket (16) is slidably connected to the vertical rod (14). The feeding device (2) includes a gear (201), a frame (202), a support arm (203), a connecting plate (204), a semi-circular block (205), a third motor (206), a rubber wheel (207), a pallet (208), and a spring (209). The left end of the tray (208) is fixedly connected to the curved plate (1), and the upper end of the tray (208) is fixedly connected to multiple support arms (203). The support arms (203) are fixedly connected to one end of two frames (202) respectively through rotating shafts. The rotating shafts of the support arms (203) are fixedly connected to the rotating part of the gears (201). The gears (201) on both sides mesh with each other. Semicircular blocks (205) are fixedly connected to the outer walls of the frames (202). (205) are all movably connected to the connecting plate (204) through the rotating shaft. The connecting plates (204) on both sides are fixedly connected to the two ends of the spring (209). The outer wall of the frame (202) is rotatably connected to the rotating part of the rubber wheel (207) through the bearing. The rotating shaft of the rubber wheel (207) on one side passes through the frame (202) and is fixedly connected to the output shaft of the third motor (206). The third motor (206) is fixedly connected to the frame (202) through the motor frame.

2. The automatic grooving machine for fire-fighting pipelines according to claim 1, characterized in that: One end of the grooved roller (12) is fixedly connected to the output shaft of the first motor (11), and the first motor (11) is fixedly connected to the bending plate (1) through the motor frame.

3. The automatic grooving machine for fire-fighting pipelines according to claim 1, characterized in that: The lower end of the vertical rod (14) is fixedly connected to the base (10), and the base (10) is fixedly connected to the bent plate (1).

4. The automatic grooving machine for fire-fighting pipelines according to claim 1, characterized in that: The reset device (9) includes a horizontal plate (901), a second motor (902), a push rod (903), a round rod (904), a straight rod (905), and a round plate (906). The second motor (902) is fixedly connected to the bent plate (1) through the motor frame. The output shaft of the second motor (902) is fixedly connected to one end of the push rod (903). Multiple round rods (904) are slidably connected to the through holes opened on the surface of the bent plate (1). One end of each round rod (904) is fixedly connected to the horizontal plate (901). The upper end of the horizontal plate (901) is symmetrically fixedly connected to round plates (906). Each round plate (906) is slidably connected to a straight rod (905) through the through holes opened on its surface. One end of each straight rod (905) is fixedly connected to the bent plate (1).

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