Automatic groove pressing machine for fire-fighting pipeline

Abstract

The invention relates to the technical field of groove pressing machines, in particular to an automatic groove pressing machine for fire-fighting pipelines, which comprises a bent plate and supporting legs, the lower end of the bent plate is symmetrically and fixedly connected with the supporting legs, the left sides of the supporting legs on the two sides are fixedly connected with a bottom plate, and the surfaces of the supporting legs on the two sides are symmetrically provided with through holes. A reset device is arranged on the left side of the bent plate, multiple sets of feeding devices are arranged at the right end of the bent plate, multiple sets of discharging devices are arranged on the outer wall of the bent plate, and through cooperation of the feeding devices and the discharging devices, when the groove plate does not abut against the inclined plates on the two sides, the inclined plates on the two sides can incline downwards under the action of gravity; the firefighting pipelines can fall on the surface of the discharging plate, the discharging plate can convey three sets of firefighting pipelines out at the same time through the inclined surface, the multiple sets of firefighting pipelines can be synchronously conveyed and discharged, long-time conveying is not needed, the efficiency is improved, and meanwhile the firefighting pipeline discharging device is more convenient to use.

Description

Technical Field

[0001] This invention relates to the field of grooving machine technology, specifically to an automatic grooving machine for fire-fighting pipelines. Background Technology

[0002] A grooving machine, also called a grooving machine or slotting machine, is a specialized tool used to pre-treat pipes when using grooved joints (grooved pipe fittings) as pipe connections. The working principle of a grooving machine is that a rotating concave pressure roller drives the pipe to rotate, while a convex pressure roller, under the action of a hydraulic cylinder, slowly applies pressure to the pipe, thus forming the required groove for installation. It can be used for the installation of pipelines in fire protection, water supply, and mining applications.

[0003] Firstly, in the existing technology, when grooving fire-fighting pipelines, it is necessary to transport the pipeline to the grooving machine for a long time before processing. After processing, the pipeline is then transported out, which results in the need for the equipment to travel for a long time, thus reducing work efficiency.

[0004] Meanwhile, in the existing technology for grooving fire-fighting pipelines, after grooving one end of the pipeline, the motor needs to reverse to drive the pipeline away from the grooving machine before it can be transported and unloaded. This causes the motor to rotate back and forth constantly, which reduces the service life of the motor.

[0005] Secondly, in the existing technology, when grooving fire-fighting pipelines, the pipeline needs to be transported for a long time, which reduces the efficiency of the existing grooving equipment during transportation. This makes the pipeline transportation process in the existing technology inconvenient and inconvenient to use. Summary of the Invention

[0006] The purpose of this invention is to solve the problems of reduced work efficiency due to long-term pipeline transportation, reduced service life due to continuous forward and reverse rotation of the motor, and inconvenience due to low transportation efficiency, and proposes an automatic fire pipeline grooving machine.

[0007] To achieve the above objectives, the present invention provides the following technical solution: Design an automatic grooving machine for fire-fighting pipelines, including a bending plate and supporting legs. The lower end of the bending plate is symmetrically and fixedly connected to the supporting legs. The left sides of both supporting legs are fixedly connected to a base plate. The surfaces of both supporting legs are symmetrically provided with through holes. A reset device is provided on the left side of the bending plate. Multiple sets of feeding devices are provided on the right end of the bending plate. Multiple sets of unloading devices are provided on the outer wall of the bending plate. Multiple sets of support plates are fixedly connected to the upper right side of the bending plate. A discharge plate is fixedly connected to the upper end of the bending plate. Multiple square plates are fixedly connected to the upper left side of the bending plate. The lower ends of each square plate are fixedly connected to a first cylinder.

[0008] Preferably, the feeding device includes a second cylinder, an inclined plate, a slide bar, a grooved plate, and ball bearings; The telescopic end of the second cylinder passes through the bent plate. The second cylinder is fixedly connected to the base plate. The telescopic end of the second cylinder is fixedly connected to the grooved plate. The upper end of the grooved plate abuts against the two inclined plates. The two ends of the rotation shaft of the inclined plates on both sides are movably connected to the bent plate and the support plate respectively through bearings. The outer wall of the inclined plate is movably connected to multiple balls through multiple sets of grooves.

[0009] Preferably, all of the ball bearings are in contact with the fire-fighting pipe, one end of the fire-fighting pipe is sleeved with the grooved roller, and one end of the grooved roller is rotatably connected to the bending plate through a bearing.

[0010] Preferably, one end of the grooved roller is fixedly connected to the output shaft of the first motor, and the first motor is fixedly connected to the bending plate through a motor frame.

[0011] Preferably, the telescopic end of the first cylinder is fixedly connected to a bracket, the bracket is rotatably connected to the concave pressure roller via a pin, and the protruding part of the bracket is slidably connected to the vertical rod.

[0012] Preferably, the lower end of the vertical rod is fixedly connected to the base, and the base is fixedly connected to the curved plate.

[0013] Preferably, the reset device includes a horizontal plate, a second motor, a push rod, a round rod, a straight rod, and a round plate; The second motor is fixedly connected to the bent plate via a motor frame. The output shaft of the second motor is fixedly connected to one end of the push rod. Multiple round rods are slidably connected to through holes on the surface of the bent plate. One end of each round rod is fixedly connected to a horizontal plate. Circular plates are symmetrically fixedly connected to the upper end of the horizontal plate. Each round plate is slidably connected to a straight rod via through holes on its surface. One end of each straight rod is fixedly connected to the bent plate.

[0014] Preferably, the feeding device includes gears, a frame, a support arm, a connecting plate, a semi-circular block, a third motor, rubber wheels, a support plate, and a spring; The left end of the support plate is fixedly connected to the curved plate, and the upper end of the support plate is fixedly connected to multiple support arms. The support arms are fixedly connected to one end of two frames respectively through rotating shafts. The rotating shafts of the support arms are fixedly connected to the rotating parts of gears. The gears on both sides mesh with each other. Semicircular blocks are fixedly connected to the outer walls of the frames. The semicircular blocks are movably connected to the connecting plates through rotating shafts. The connecting plates on both sides are fixedly connected to the two ends of the springs respectively. The outer walls of the frames are rotatably connected to the rotating parts of rubber wheels through bearings. The rotating shaft of one side of the rubber wheel passes through the frame and is fixedly connected to the output shaft of the third motor. The third motor is fixedly connected to the frame through a motor frame.

[0015] The present invention proposes an automatic grooving machine for fire-fighting pipelines, the advantages of which are as follows: Through the cooperation of a feeding device and a conveyor belt, three sets of fire-fighting pipelines are simultaneously transported via conveyor belts and other equipment. One end of each set of fire-fighting pipeline is pressed against the rubber wheels on both sides, allowing the pipeline to push these wheels to the sides. These wheels then rotate the frames on both sides around the hinge point with the support arm, allowing the frames to move synchronously via semicircular blocks on both sides. This causes the connecting plates on both sides to stretch the springs, ensuring the rubber wheels press firmly against the outer wall of the fire-fighting pipeline. The third motor is then controlled to operate, enabling the third... The output shaft of the motor rotates, driving one side of the rubber wheel to rotate. This causes the rubber wheels on both sides to move the fire-fighting pipes, allowing one set of fire-fighting pipes to be transported to the surface of the inclined plates on both sides. Several ball bearings on the surface of the inclined plates can then adhere to the surface of the fire-fighting pipes, allowing the three sets of fire-fighting pipes to be transported to a position where one end fits into the surface of the grooved roller. At this point, the rubber wheels on both sides can adhere to the outer wall of the second fire-fighting pipe in the three sets of fire-fighting pipes, so that one end of the second fire-fighting pipe adheres to one end of the first fire-fighting pipe. This allows for the synchronous transport of the three sets of fire-fighting pipes, making the transport process faster. Simultaneous feeding of the three sets of pipes also improves the working efficiency of this invention.

[0016] 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.

[0017] 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

[0018] Figure 1 This is a schematic diagram of the external structure of the present invention; Figure 2 For the present invention Figure 1 A top-down view diagram; Figure 3 For the present invention Figure 1 A schematic diagram of the state on the left side; Figure 4 For the present invention Figure 1 Schematic diagram showing the state of the area without fire-fighting pipes; Figure 5 For the present invention Figure 1 Mid-rear view diagram; Figure 6 For the present invention Figure 1 Mid-top view diagram; Figure 7 For the present invention Figure 1 Schematic diagram of the central feeding device; Figure 8 For the present invention Figure 1 Schematic diagram of the feeding and unloading device; Figure 9 For the present invention Figure 1 A schematic diagram of the feeding device from below; Figure 10 For the present invention Figure 6 Schematic diagram of part A in the middle; Figure 11 For the present invention Figure 4 Schematic diagram of part B.

[0019] In the diagram: 1. Curved plate, 2. Feeding device, 201. Gear, 202. Frame, 203. Support arm, 204. Connecting plate, 205. Semicircular block, 206. Third motor, 207. Rubber wheel, 208. Support plate, 209. Spring, 3. Support plate, 4. Unloading device, 401. Second cylinder, 402. Inclined plate, 403. Slide rod, 404. Grooved plate, 405. Ball bearing, 5. Fire pipe, 6. Base plate, 7. Support leg, 8. Discharge 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. Grooved roller, 13. Square plate, 14. Vertical rod, 15. First cylinder, 16. Bracket, 17. Concave pressure roller. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings: See attached document Figure 1-11 In this embodiment, an automatic fire-fighting pipe grooving machine includes a bending plate 1 and support legs 7. The lower end of the bending plate 1 is symmetrically and fixedly connected to the support legs 7. The left sides of both support legs 7 are fixedly connected to the base plate 6. The surfaces of both support legs 7 are symmetrically provided with through holes. The through holes on the surfaces of both support legs 7 can be fixed to the ground with 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 multiple sets of feeding devices 2. The outer wall of the bending plate 1 is provided with multiple sets of unloading devices 4. The upper right side of the bending plate 1 is fixedly connected with multiple sets of support plates 3. There are six support plates 3, so that the invention can perform grooving processing on three fire-fighting pipes 5 at one time. The upper end of the bending plate 1 is fixedly connected with a discharge plate 8, which can transport the processed fire-fighting pipes 5 out. The upper left side of the bending plate 1 is fixedly connected with multiple square plates 13. There are three sets of square plates 13. The first cylinder 15 can drive the support 16 to move downward according to actual needs. The lower end of each square plate 13 is fixedly connected with a first cylinder 15.

[0021] 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 can meet the working requirements according to actual needs. The second cylinder 401 can drive the grooved plate 404 to move. 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 grooved plate 404. The upper end of the grooved plate 404 abuts against the two inclined plates 402. The grooved plate 404 abuts against the inclined plates 402 on both sides through the inclined surface, so that the angle of the inclined plates 402 on both sides can be fixed. 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 outer wall of the inclined plate 402 is movably connected to multiple balls 405 through multiple sets of grooves. The balls 405 can support the fire pipe 5 to move.

[0022] Through the cooperation of the unloading device 4 and the feeding device 2, three sets of fire-fighting pipes 5 are simultaneously transported by conveyor belts and other equipment. One end of each set of fire-fighting pipes 5 is pressed against the rubber wheels 207 on both sides, allowing the fire-fighting pipes 5 to push the rubber wheels 207 to both sides. The rubber wheels 207 can drive the frames 202 on both sides to rotate a certain angle around the hinge point with the support arm 203. This allows the frames 202 on both sides to drive the connecting plates 204 on both sides to move synchronously via the semicircular blocks 205 on both sides. The connecting plates 204 on both sides can stretch the springs 209, allowing the rubber wheels 207 on both sides to press against the outer wall of the fire-fighting pipes 5. This controls the third motor 206 to operate, causing the output of the third motor 206... The rotation of the output shaft drives the rubber wheel 207 on one side to rotate, which in turn drives the fire-fighting pipes 5 to move. This allows a set of fire-fighting pipes 5 to be transported to the surface of the inclined plates 402 on both sides. Several balls 405 on the surface of the inclined plates 402 can then fit against the surface of the fire-fighting pipes 5, allowing the three sets of fire-fighting pipes 5 to be transported to a position where one end fits against the surface of the grooved roller 12. At this point, the rubber wheels 207 on both sides can fit against the outer wall of the second fire-fighting pipe 5, so that one end of the second fire-fighting pipe 5 fits against one end of the first fire-fighting pipe 5. This allows for the synchronous transport of the three sets of fire-fighting pipes 5, making the transport process faster. Simultaneous feeding of the three sets of pipes also improves the working efficiency of this invention.

[0023] Multiple balls 405 are attached to the fire pipe 5. One end of the fire pipe 5 is sleeved with the grooved roller 12. The outer wall of the grooved roller 12 has a groove. The width of the groove is slightly larger than the width of the concave pressure roller 17. One end of the grooved roller 12 is rotatably connected to the bending plate 1 through a bearing, fixing the rotation center of the grooved roller 12.

[0024] One end of the grooved roller 12 is fixedly connected to the output shaft of the first motor 11. The first motor 11 can drive the grooved roller 12 to rotate according to actual needs. The first motor 11 is fixedly connected to the bending plate 1 through the motor frame.

[0025] 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 roller 17 via a pin. The protruding part of the bracket 16 is slidably connected to the vertical rod 14. The vertical rod 14 can fix the movement track of the bracket 16.

[0026] 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.

[0027] 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 bending plate 1 via a motor frame. The second motor 902 is designed to meet the actual working requirements. The second motor 902 can drive the push rod 903 to rotate at a certain angle. The output shaft of the second motor 902 is fixedly connected to one end of the push rod 903. The push rod 903 can push the horizontal plate 901 to move. There are three round rods 904. The round rods 904 can push the three sets of fire pipes 5 to separate from the grooved rollers 12. The multiple round rods 904 are all slidably connected to the through holes opened on the surface of the bending 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. The round plates 906 are all slidably connected to straight rods 905 through the through holes opened on their surfaces. The straight rods 905 can fix the movement track of the round plates 906 on both sides. One end of each of the multiple straight rods 905 is fixedly connected to the bending plate 1.

[0028] With the cooperation of the reset device 9, the bending plate 1, and the groove roller 12, after the grooving operation is completed, the second motor 902 is controlled to work, causing the output shaft of the second motor 902 to rotate and drive the push rod 903 to rotate. 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. One end of the three round rods 904 can push the three fire pipes 5 to move, so that one end of the three fire pipes 5 is no longer connected to the three groove rollers 12. The three sets of second cylinders 401 are controlled to work, so that the extension end of the second cylinder 401 shortens and drives the groove plate 404 to move downward. When the groove plate 404 is no longer pressed against the inclined plates 402 on both sides, the inclined plates 402 on both sides can tilt downward under the action of gravity, so that the fire pipes 5 can fall onto the surface of the discharge plate 8. The discharge plate 8 can transport the three sets of fire pipes 5 out simultaneously through the inclined surface. The three sets of fire pipes 5 can be pushed back without the need for motor reversal for transmission, which can improve the service life of the invention.

[0029] 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 support plate 208 is fixedly connected to the curved plate 1. Multiple support arms 203 are fixedly connected to the upper end of the support plate 208. The support plate 208 has three arms. Each support arm 203 is fixedly connected to one end of one of two frames 202 via a rotating shaft. The four support arms 203 can support the two frames 202 to rotate at a certain angle. 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 can make the frames 202 on both sides rotate synchronously, while preventing the frames 202 from tipping over. The gears 201 on both sides mesh. Semicircular blocks 205 are fixedly connected to the outer walls of each frame 202. Each semicircular block 205 is movably connected to the connecting plate 204 via a rotating shaft. The connecting plates 204 on both sides... 4 is fixedly connected to both ends of spring 209. The elastic coefficient of spring 209 is determined according to actual needs and meets the working requirements. Spring 209 can pull the two side frames 202 together towards the center, so that the two side frames 202 can drive the two side rubber wheels 207 to clamp the fire pipe 5. The outer wall of frame 202 is rotatably connected to the rotating part of rubber wheel 207 through bearings. The rotating shaft of one side rubber wheel 207 passes through frame 202 and is fixedly connected to the output shaft of third motor 206. Third motor 206 is determined according to actual needs and meets the working requirements. Third motor 206 can drive one side rubber wheel 207 to rotate. Third motor 206 is fixedly connected to frame 202 through motor frame.

[0030] By coordinating the feeding device 2 and the unloading device 4, the three sets of second cylinders 401 are controlled to work, causing the extension and retraction ends of the second cylinders 401 to shorten and drive the grooved plate 404 to move downward. When the grooved plate 404 is no longer pressed against the inclined plates 402 on both sides, the inclined plates 402 on both sides can tilt downward under the action of gravity, allowing the fire pipes 5 to fall onto the surface of the discharge plate 8. The discharge plate 8 can then transport the three sets of fire pipes 5 simultaneously through the inclined surface. According to the above operation, the grooved plate 404 can push the inclined plates 402 on both sides back to their original positions. After the inclined plates 402 return to their original positions, continuous operation can be performed. By synchronously transporting and unloading multiple sets of fire pipes 5, long-term conveying is not required, which improves efficiency and makes the invention more convenient to use.

[0031] Working principle: When grooving fire protection pipes: Transportation process: Three sets of fire-fighting pipes 5 are simultaneously transported via conveyor belts or other equipment (the length of the fire-fighting pipes 5 must be the same as the length of the inclined plate 402). One end of each set of fire-fighting pipes 5 is pressed against the rubber wheels 207 on both sides, allowing the fire-fighting pipes 5 to push the rubber wheels 207 on both sides. The rubber wheels 207 on both sides can drive the frames 202 on both sides to rotate a certain angle around the hinge point with the support arm 203. This allows the frames 202 on both sides to drive the connecting plates 204 on both sides to move synchronously through the semicircular blocks 205 on both sides. This allows the connecting plates 204 on both sides to stretch the springs 209, causing the rubber wheels 207 on both sides to move synchronously. 7 can be pressed against the outer wall of the fire-fighting pipe 5, and the third motor 206 is controlled to work, so that the output shaft of the third motor 206 rotates and drives the rubber wheel 207 on one side to rotate, so that the rubber wheels 207 on both sides can drive the fire-fighting pipe 5 to move, so that one set of fire-fighting pipe 5 can be transported to the surface of the inclined plates 402 on both sides, so that several balls 405 on the surface of the inclined plates 402 on both sides can fit against the surface of the fire-fighting pipe 5, so that three sets of fire-fighting pipe 5 can be transported to the position where one end is sleeved with the surface of the groove roller 12. The other two sets are fed synchronously to the fire-fighting pipe 5 in the same way as above. At the same time, according to the above operation, the remaining fire-fighting pipe 5 can continue to be fed.

[0032] Grooving process: The three sets of first cylinders 15 are controlled to work, so that the extension ends of the three sets of first cylinders 15 extend and drive the brackets 16 to move downward synchronously. The three sets of brackets 16 can drive the concave pressure rollers 17 to move downward, so that the three sets of concave pressure rollers 17 slowly press the fire pipe 5, so that the concave pressure rollers 17 cooperate with the grooves on the surface of the groove rollers 12, and so that one end of the fire pipe 5 is grooved.

[0033] Reset and unloading process: After the grooving operation is completed, the second motor 902 is activated, causing its output shaft to rotate and drive the push rod 903 to rotate. One end of the push rod 903 pushes the horizontal plate 901 to move, which in turn drives the three round rods 904 to move synchronously. One end of each round rod 904 pushes the three fire pipes 5 to move, so that one end of each fire pipe 5 is no longer connected to the three grooved rollers 12. The three sets of second cylinders 401 are then activated, causing their extension ends to shorten and drive the grooved plate 404 downward. The downward movement of the grooved plate 404 allows the inclined plates 402 on both sides to rotate. Under the influence of gravity, the inclined plates 402 tilt downward, allowing the fire pipes 5 to fall onto the surface of the discharge plate 8. The discharge plate 8 can then simultaneously transport the three sets of fire pipes 5 through the tilted surface. Following the above operations, the grooved plate 404 pushes the inclined plates 402 back to their original positions. After the inclined plates 402 return to their original positions, continuous operation can begin.

[0034] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art will understand that various changes in form and detail are possible within 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).

2. The automatic grooving machine for fire-fighting pipelines according to claim 1, characterized in that: 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.

3. The automatic grooving machine for fire-fighting pipelines according to claim 2, characterized in that: 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.

4. The automatic grooving machine for fire-fighting pipelines according to claim 3, 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.

5. The automatic grooving machine for fire-fighting pipelines according to claim 1, characterized in that: 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).

6. The automatic grooving machine for fire-fighting pipelines according to claim 5, 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).

7. 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).

8. The automatic grooving machine for fire-fighting pipelines according to claim 1, characterized in that: 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.

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