A pipe bending machine for steel pipe processing

Abstract

The present invention belongs to the technical field of steel pipe processing, and in particular to a pipe bending machine for steel pipe processing. In view of the problem that bending wheels of different diameters need to be replaced when processing steel pipes of different diameters, the following scheme is proposed, including a machine, a side frame is fixedly installed on one side of the top of the machine, and a centering component is arranged inside the side frame, a cleaning component is arranged on the outside of the other side of the side frame, and a material guide component is slidably arranged on the other side of the top of the machine. In the present invention, the diameter of the steel pipe needs to be determined before bending, and then a third motor in the sleeve is operated, and then the cylinder is extended so that the docking block at its end docks with the docking groove of the first bending die, and then the second motor is operated to rotate the second rotating shaft until the die assembly corresponding to the first bending die and the rectangular opening coincide, and the hydraulic column is operated to push the second bending die out of the rectangular opening until it is tangent to the circumferential outer wall of the protective cover, and when processing steel pipes of different diameters, there is no need to manually replace the bending die group in a time-consuming and labor-intensive manner.

Description

Technical Field

[0001] The invention relates to the technical field of steel pipe processing, and in particular to a pipe bending machine for steel pipe processing. Background Art

[0002] Steel pipes are not only used to transport fluids and powdered solids, exchange heat, and manufacture mechanical parts and containers, but they are also an economical steel material. Using steel pipes to manufacture building structure grids, pillars and mechanical supports can reduce weight, save metal usage, and realize factory-based mechanized construction. Using steel pipes to manufacture highway bridges can not only save steel and simplify construction, but also greatly reduce the area of ​​protective coating, saving investment and maintenance costs. Steel pipes are common metal objects in real life, but for practical needs, steel pipes need to be bent to meet actual construction requirements, so pipe bending machines are needed to process steel pipes.

[0003] After searching, the patent publication number CN209577812U discloses a patent named a pipe bender for steel pipe processing. The technical problem to be solved is that the fixed diameter of the steel pipe cannot meet more requirements, and the actual environment where the pipe bender is located is often dusty, which easily causes the machine body to be contaminated with dust and moisture, thereby affecting the use. By setting a moving device in the turntable, the active bevel gear is rotated by rotating the rotating rod, thereby driving the driven bevel gear to rotate, and driving the screw to rotate, thereby applying a steering force to the inner side of the slider, so that the slider moves in the slide groove, thereby adjusting the second fixed position, solving the problem that the fixed diameter of the steel pipe bent by the pipe bender cannot meet more requirements, and by setting a cleaning device on the top surface of the turntable, the slide plate is made to slide out of the opening by pulling the handle, so that the plastic wire contacts the top surface of the turntable to clean the top surface of the turntable, solving the problem that the actual environment where the pipe bender is located is often dusty, which easily causes the machine body to be contaminated with dust and moisture, thereby affecting the use.

[0004] However, there are still the following drawbacks that need to be solved: when processing steel pipes of different diameters, it is necessary to replace bending wheels of different diameters, which greatly affects the bending efficiency of the steel pipes. Summary of the invention

[0005] Based on the technical problem that bending wheels with different diameters need to be replaced when processing steel pipes with different diameters, the present invention provides a pipe bending machine for processing steel pipes.

[0006] The present invention proposes a pipe bending machine for steel pipe processing, comprising a machine platform, a side frame is fixedly installed on one side of the top of the machine platform, and a centering component is arranged inside the side frame, a cleaning component is arranged on the outside of the other side of the side frame, a material guide component is slidably arranged on the other side of the top of the machine platform, a bracket is rotatably installed on one end of the other side of the top of the machine platform, a fourth motor is fixedly installed on the bottom of the machine platform, and the output end of the fourth motor is fixedly connected to one end of the bottom of the bracket, a cylinder is fixedly installed on the upper end of the outer wall of the other end of the bracket, and a docking block is fixedly arranged on the movable end of the cylinder, a sleeve frame is fixedly arranged on the upper end of the inner wall of the other end of the bracket, and the center of the sleeve frame and the center of the cylinder are located on the same straight line, and the sleeve frame A walking plate and a push frame are slidably installed on the four sides, and a telescopic sleeve is rotatably installed between the opposite ends of the walking plate and the push frame, a third motor is fixedly installed on the outer side of the walking plate, and a walking gear is fixedly installed on the output end of the third motor, racks are fixedly arranged on the inner sides of the four sides of the sleeve frame, and each walking gear circumference is meshed with the opposite ends of the two racks, a first bending die is fixedly arranged inside the push frame, a protective cover is fixedly installed on one end of the top of the bracket, and a rectangular opening is opened at the other end of the circumference of the protective cover, a second motor is fixedly installed on the top of the protective cover, a second rotating shaft is fixedly installed on the output end of the second motor, and a plurality of groups of die assemblies with equal angles are arranged on the four sides of the second rotating shaft;

[0007] The centering assembly includes a first side frame and a second side frame, and the opposite ends of the upper ends of the first side frame and the second side frame are both set as tooth plates, and the opposite ends of the lower ends of the first side frame and the second side frame are fixedly installed with clamping members, a first motor is fixedly installed on the top end of one side of the side frame, and an adjusting roller is fixedly installed on the output end of the first motor, a through groove is set at the bottom end of the side frame, and sliding openings are opened at both ends of the through groove, the first side frame and the second side frame are both slidably sleeved with the sliding openings, and the opposite ends of the upper ends of the first side frame and the second side frame are circumferentially meshed with the adjusting roller;

[0008] The cleaning assembly includes a sleeve, and the sleeve is rotatably sleeved with the outer side of the side frame, a plurality of cleaning strips with equal angles are fixedly installed on the inner circumference wall of the sleeve, a plurality of tooth grooves are opened on the outer circumference wall of the sleeve, a transmission gear is fixedly installed on the other side of the adjusting roller, and the circumference of the transmission gear is meshed with a plurality of tooth grooves;

[0009] The material guide assembly includes a push piece, and a guide die is slidably installed inside the push piece, and two limit slide grooves are opened at the other end of the top of the machine table, and the bottom end of the push piece is slidably sleeved inside the two limit slide grooves;

[0010] The die assembly includes two support rods, and the ends of the two support rods are fixedly connected to a mounting plate, a hydraulic column is fixedly installed in the middle of the inner side of the mounting plate, and the end of the hydraulic column is fixedly connected to a second bending die, and a plurality of equidistant limiting guide rods are fixedly arranged at both ends of the inner side of the second bending die, and each limiting guide rod is slidably sleeved with the mounting plate.

[0011] Preferably, a material leakage opening is opened on one side of the top of the machine, and a collecting hopper is fixedly installed at the bottom of the material leakage opening, the material leakage opening is located on the outside of the sleeve, a negative pressure fan is placed on one side of the bottom of the machine, and a guide pipe is fixedly connected between the inlet end of the negative pressure fan and the bottom end of the collecting hopper.

[0012] Preferably, outer ring protrusions are arranged on the inner sides of the walking plate and the push frame, and a docking groove is opened in the middle of the inner side of the push frame, and the docking groove matches the docking block.

[0013] Preferably, the first bending die and the second bending die of each group match.

[0014] Preferably, the protective cover is made of heat-conductive material.

[0015] The beneficial effects of the present invention are:

[0016] The present invention provides a steel pipe bending machine for processing steel pipes. The steel pipe is transferred to the material guide assembly and the first bending die and the second bending die in the middle of the through slot of the side frame by the centering assembly. In the process of transferring the steel pipe, the cleaning assembly scrapes off the particles and floating dust on the circumference of the steel pipe, and the negative pressure fan works to transfer and collect them. Before bending the steel pipe, the diameter of the steel pipe needs to be determined. Then, a third motor in the sleeve frame works to rotate the travel gear and drive the travel plate and the push frame to move from the outermost side of the sleeve frame to the innermost side of the sleeve frame. Then, the cylinder is extended to make the docking block at its end contact with the first bending die. The docking grooves of the bending molds are docked, and the cylinder continues to extend to move the first bending mold accordingly. Then the second motor works to rotate the second shaft until the die assembly corresponding to the first bending mold and the rectangular opening coincide with each other, and the hydraulic column works to push the second bending mold out of the rectangular opening until it is tangent to the outer wall of the protective cover, thereby performing the bending processing of the steel pipe of this diameter. When processing steel pipes of different diameters, there is no need to manually replace the bending mold group, which is time-consuming and labor-intensive. The telescopic sleeve can connect the walking plate and the push frame, and can also help the previous first bending mold to be reset to the inner side of the sleeve frame when the first bending mold is replaced.

[0017] The present invention proposes a pipe bending machine for steel pipe processing, which is rotatably sleeved with the outer side of the side frame through a sleeve, and a plurality of cleaning strips with equal angles are fixedly installed on the inner wall of the sleeve circumference, so that particles on the surface of the steel pipe can be scraped off during the transmission process, and the circumference of the transmission gear is meshed with a plurality of tooth grooves. When the first motor works to adjust the centering effect of the steel pipe, the transmission gear drives the sleeve to rotate, which helps to throw the particles scraped by the cleaning strip out to the top of the leakage opening, and a collecting hopper is fixedly installed at the bottom of the leakage opening. The leakage opening is located on the outside of the sleeve, and the negative pressure fan can absorb particles in real time under negative pressure to prevent them from remaining on the surface of the machine, and also to prevent the steel pipe from being contaminated with floating dust during the transmission process, resulting in depression when bending. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1This is a structural schematic diagram of a pipe bending machine for steel pipe processing proposed by the present invention;

[0019] Figure 2 It is a right side structural schematic diagram of a pipe bending machine for steel pipe processing proposed by the present invention;

[0020] Figure 3 This is a schematic diagram of the structure inside the side frame of a pipe bending machine for steel pipe processing proposed by the present invention;

[0021] Figure 4 This is a bottom view structural schematic diagram of a pipe bending machine bracket for steel pipe processing proposed by the present invention;

[0022] Figure 5 This is a schematic structural diagram of a pipe bending machine frame for steel pipe processing proposed by the present invention;

[0023] Figure 6 This is a rear structural schematic diagram of a pipe bending machine push piece for steel pipe processing proposed by the present invention;

[0024] Figure 7 This is a schematic structural diagram of a protective cover for a pipe bending machine for steel pipe processing proposed by the present invention;

[0025] Figure 8 The present invention is a schematic cross-sectional structural diagram of a protective cover for a pipe bending machine for steel pipe processing.

[0026] In the figure: 1 machine, 2 side frame, 3 first motor, 4 clamping member, 5 leakage opening, 6 limiting slide groove, 7 push member, 8 guide mold, 9 bracket, 10 cylinder, 11 protective cover, 12 second motor, 13 negative pressure fan, 14 collecting hopper, 15 sleeve, 16 transmission gear, 17 cleaning strip, 18 tooth groove, 19 guide pipe, 20 slide, 21 first side frame, 22 second side frame, 23 adjusting roller, 24 fourth motor, 25 sleeve, 26 rack, 27 walking gear, 28 walking plate, 29 telescopic sleeve, 30 push frame, 31 third motor, 32 docking block, 33 first bending mold, 34 docking groove, 35 rectangular opening, 36 support rod, 37 mounting plate, 38 hydraulic column, 39 second bending mold, 40 limiting guide rod. DETAILED DESCRIPTION

[0027] Reference Figure 1-8A pipe bending machine for steel pipe processing includes a machine table 1, a side frame 2 is fixedly installed on one side of the top of the machine table 1, and a centering component is arranged inside the side frame 2, a cleaning component is arranged on the outside of the other side of the side frame 2, a material guide component is slidably arranged on the other side of the top of the machine table 1, a bracket 9 is rotatably installed on one end of the other side of the top of the machine table 1, a fourth motor 24 is fixedly installed on the bottom of the machine table 1, and the output end of the fourth motor 24 is fixedly connected to one end of the bottom of the bracket 9, a cylinder 10 is fixedly installed on the upper end of the outer wall of the other end of the bracket 9, and a docking block 32 is fixedly arranged on the movable end of the cylinder 10, a sleeve frame 25 is fixedly arranged on the upper end of the inner wall of the other end of the bracket 9, and the center of the sleeve frame 25 is located on the same straight line as the center of the cylinder 10, and walking wheels are slidably installed on the four sides of the sleeve frame 25. A plate 28 and a push frame 30, and a telescopic sleeve 29 is rotatably installed between the opposite ends of the walking plate 28 and the push frame 30, a third motor 31 is fixedly installed on the outer side of the walking plate 28, and a walking gear 27 is fixedly installed on the output end of the third motor 31, racks 26 are fixedly arranged on the inner sides of the four sides of the sleeve frame 25, and each walking gear 27 is meshed with the opposite ends of the two racks 26 on the circumference, a first bending die 33 is fixedly arranged inside the push frame 30, a protective cover 11 is fixedly installed on one end of the top of the bracket 9, and a rectangular opening 35 is opened at the other end of the circumference of the protective cover 11, a second motor 12 is fixedly installed on the top of the protective cover 11, a second rotating shaft is fixedly installed on the output end of the second motor 12, and multiple groups of equal-angle die components are arranged on the circumference of the second rotating shaft on all sides;

[0028] The centering component includes a first side frame 21 and a second side frame 22, and the opposite ends of the upper ends of the first side frame 21 and the second side frame 22 are both set as tooth plates, and the opposite ends of the lower ends of the first side frame 21 and the second side frame 22 are both fixedly installed with a clamping member 4, a first motor 3 is fixedly installed at the top end of one side of the side frame 2, and an adjusting roller 23 is fixedly installed at the output end of the first motor 3, a through groove is set at the bottom end of the side frame 2, and sliding openings 20 are opened at both ends of the through groove, the first side frame 21 and the second side frame 22 are both slidably sleeved with the sliding openings 20, and the opposite ends of the upper ends of the first side frame 21 and the second side frame 22 are circumferentially meshed with the adjusting roller 23;

[0029] The cleaning assembly includes a sleeve 15, and the sleeve 15 is rotatably sleeved with the outer side of the side frame 2, a plurality of cleaning strips 17 with equal angles are fixedly installed on the inner circumference wall of the sleeve 15, a plurality of tooth grooves 18 are opened on the outer circumference wall of the sleeve 15, a transmission gear 16 is fixedly installed on the other side of the adjustment roller 23, and the transmission gear 16 is meshed with a plurality of tooth grooves 18 on its circumference;

[0030] The material guide assembly includes a push piece 7, and a guide mold 8 is slidably installed inside the push piece 7. Two limit slide grooves 6 are opened at the other end of the top of the machine table 1, and the bottom end of the push piece 7 is slidably sleeved inside the two limit slide grooves 6;

[0031] The mold assembly includes two support rods 36, and the ends of the two support rods 36 are fixedly connected to a mounting plate 37, a hydraulic column 38 is fixedly installed in the middle of the inner side of the mounting plate 37, and the end of the hydraulic column 38 is fixedly connected to a second bending mold 39, and a plurality of equidistant limiting guide rods 40 are fixedly arranged at both ends of the inner side of the second bending mold 39, and each limiting guide rod 40 is slidably sleeved with the mounting plate 37, which helps the second bending mold 39 to move stably when the hydraulic column 38 is extended or retracted.

[0032] In the present invention, a material leakage opening 5 is provided on one side of the top of the machine 1, and a collecting hopper 14 is fixedly installed at the bottom of the material leakage opening 5, and the material leakage opening 5 is located outside the sleeve 15. A negative pressure fan 13 is placed on one side of the bottom of the machine 1, and a guide pipe 19 is fixedly connected between the inlet end of the negative pressure fan 13 and the bottom end of the collecting hopper 14;

[0033] The inner sides of the walking plate 28 and the push frame 30 are provided with outer ring protrusions, which help the walking plate 28 and the push frame 30 to move stably inside the sleeve 25, and the middle of the inner side of the push frame 30 is provided with a docking groove 34, which matches the docking block 32;

[0034] The first bending die 33 and the second bending die 39 of each group are matched;

[0035] The protective cover 11 is made of a heat-conducting material, which helps to dissipate heat from the second bending die 39 .

[0036] Working principle: The steel pipe is transferred to the material guide assembly and the first bending die 33 and the second bending die 39 in the middle of the through slot of the side frame 2 through the centering assembly, and in the process of conveying the steel pipe, the cleaning assembly scrapes off the particles and dust on the circumference of the steel pipe, and the negative pressure fan 13 works to transfer and collect them. Before bending the steel pipe, the diameter of the steel pipe needs to be determined, and then a third motor 31 in the sleeve frame 25 works to rotate the walking gear 27 and drive the walking plate 28 and the push frame 30 to move from the outermost side of the sleeve frame 25 to the innermost side of the sleeve frame 25, and then the cylinder 10 extends so that the docking block 32 at its end is aligned with the docking groove 34 of the first bending die 33. Next, the cylinder 10 continues to extend to move the first bending die 33 accordingly, and then the second motor 12 works to rotate the second shaft until the die assembly corresponding to the first bending die 33 and the rectangular opening 35 overlap, and the hydraulic column 38 works to push the second bending die 39 out of the rectangular opening 35 until it is tangent to the outer wall of the circumference of the protective cover 11, and then the steel pipe of the diameter is bent. When processing steel pipes of different diameters, it is not necessary to replace the bending die set manually, which is time-consuming and labor-intensive. The telescopic sleeve 29 can connect the walking plate 28 and the push frame 30, and can also help the previous first bending die 33 to reset to the inner side of the sleeve frame 35 when the first bending die 33 is replaced;

[0037] The sleeve 15 is rotatably connected to the outer side of the side frame 2, and a plurality of cleaning strips 17 with equal angles are fixedly installed on the inner wall of the sleeve 15. The particles on the surface of the steel pipe can be scraped off during the transmission process, and the transmission gear 16 is meshed with a plurality of tooth grooves 18 on its circumference. When the first motor 3 works to adjust the centering effect of the steel pipe, the transmission gear 16 drives the sleeve 15 to rotate, which helps to throw the particles scraped off by the cleaning strip 17 to the top of the leakage opening 5, and a collecting hopper 14 is fixedly installed at the bottom of the leakage opening 5. The leakage opening 5 is located on the outside of the sleeve 15. The negative pressure fan 13 can absorb the particles in real time under negative pressure to prevent them from remaining on the surface of the machine 1, and also to prevent the steel pipe from being contaminated with floating dust during the transmission process, resulting in depressions when bending.

[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A pipe bending machine for steel pipe processing, comprising a machine platform (1), a side frame (2) is fixedly mounted on one side of the top of the machine platform (1), a centering component is arranged inside the side frame (2), a cleaning component is arranged outside the other side of the side frame (2), a material guide component is slidably arranged on the other side of the top of the machine platform (1), a bracket (9) is rotatably mounted on one end of the other side of the top of the machine platform (1), a fourth motor (24) is fixedly mounted on the bottom of the machine platform (1), and an output end of the fourth motor (24) is fixedly connected to one end of the bottom of the bracket (9), characterized in that: A cylinder (10) is fixedly mounted on the upper end of the outer wall of the other end of the bracket (9), and a docking block (32) is fixedly mounted on the movable end of the cylinder (10). A sleeve frame (25) is fixedly mounted on the upper end of the inner wall of the other end of the bracket (9), and the center of the sleeve frame (25) is located on the same straight line as the center of the cylinder (10). A walking plate (28) and a push frame (30) are slidably mounted on four sides of the sleeve frame (25), and a telescopic sleeve (29) is rotatably mounted between the opposite ends of the walking plate (28) and the push frame (30). A third motor (31) is fixedly mounted on the outer side of the walking plate (28), and an output end of the third motor (31) is fixedly mounted. A travel gear (27) is provided, racks (26) are fixedly provided on the inner sides of the four sides of the sleeve (25), and the circumference of each travel gear (27) meshes with the opposite ends of the two racks (26), a first bending die (33) is fixedly provided inside the push frame (30), a protective cover (11) is fixedly installed on one end of the top of the bracket (9), and a rectangular opening (35) is provided on the other end of the circumference of the protective cover (11), a second motor (12) is fixedly installed on the top of the protective cover (11), a second rotating shaft is fixedly installed on the output end of the second motor (12), and a plurality of groups of counter-die assemblies with equal angles are provided on the circumference of the second rotating shaft; The centering component comprises a first side frame (21) and a second side frame (22), and the opposite ends of the upper ends of the first side frame (21) and the second side frame (22) are both arranged as tooth plates, and the opposite ends of the lower ends of the first side frame (21) and the second side frame (22) are both fixedly mounted with clamping members (4), a first motor (3) is fixedly mounted on the top end of one side of the side frame (2), and an adjusting roller (23) is fixedly mounted on the output end of the first motor (3), a through groove is arranged at the bottom end of the side frame (2), and sliding openings (20) are opened at both ends of the through groove, the first side frame (21) and the second side frame (22) are both slidably sleeved with the sliding openings (20), and the opposite ends of the upper ends of the first side frame (21) and the second side frame (22) are circumferentially meshed with the adjusting roller (23); The cleaning assembly comprises a sleeve (15), and the sleeve (15) is rotatably sleeved with the outer side of the side frame (2), a plurality of cleaning strips (17) with equal angles are fixedly mounted on the circumferential inner wall of the sleeve (15), a plurality of tooth grooves (18) are formed on the circumferential outer wall of the sleeve (15), a transmission gear (16) is fixedly mounted on the other side of the adjustment roller (23), and the circumference of the transmission gear (16) is meshed with a plurality of tooth grooves (18); The material guide assembly comprises a push piece (7), and a guide die (8) is slidably mounted inside the push piece (7); two limit slide grooves (6) are provided at the other end of the top of the machine table (1), and the bottom end of the push piece (7) is slidably sleeved inside the two limit slide grooves (6); The die assembly comprises two support rods (36), and the ends of the two support rods (36) are fixedly connected to a mounting plate (37), a hydraulic column (38) is fixedly installed in the middle of the inner side of the mounting plate (37), and the end of the hydraulic column (38) is fixedly connected to a second bending die (39), and a plurality of equidistant limiting guide rods (40) are fixedly arranged at both ends of the inner side of the second bending die (39), and each limiting guide rod (40) is slidably sleeved with the mounting plate (37).

2. A steel pipe bending machine according to claim 1, characterized in that: A material leakage opening (5) is provided on one side of the top end of the machine (1), and a collecting hopper (14) is fixedly installed at the bottom end of the material leakage opening (5), the material leakage opening (5) is located outside the sleeve (15), a negative pressure fan (13) is placed on one side of the bottom end of the machine (1), and a guide pipe (19) is fixedly connected between the inlet end of the negative pressure fan (13) and the bottom end of the collecting hopper (14).

3. A steel pipe bending machine according to claim 1, characterized in that: The walking plate (28) and the push frame (30) are provided with outer ring protrusions on their inner sides, and a docking groove (34) is provided in the middle of the inner side of the push frame (30), wherein the docking groove (34) matches the docking block (32).

4. A steel pipe bending machine according to claim 1, characterized in that: The first bending die (33) and the second bending die (39) of each group are matched.

5. A steel pipe bending machine according to claim 4, characterized in that: The protective cover (11) is made of heat-conducting material.

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