Angle-adjustable bending machine for building pipes

Abstract

The present invention relates to the technical field of pipe bending and provides a bending machine with adjustable angle of building pipes, comprising an inner rotating module, an outer rotating module, a double rotor group, a radial adjustment module, and an adjustable bending module, wherein the inner rotating module comprises an inner core body, the outer rotating module comprises a rotating mother ring, the inner core body is movably arranged in the rotating mother ring, the double rotor group comprises a double rotating drum rotating around its respective axes, the radial adjustment module comprises a telescopic cylinder 1 and a single rotating drum, the telescopic cylinder 1 is fixedly arranged in the rotating mother ring, the single rotating drum is connected to the telescopic cylinder 1, the inner walls of the double rotating drum and the single rotating drum are both provided with limiting protrusions, the adjustable bending module comprises an integrated bending mold and an adjusting component, the integrated bending mold comprises a pin shaft, roller 1, roller 2, roller 3 and a limiting groove, the adjusting component is connected to the pin shaft, roller 1, roller 2 and roller 3 are all fixedly sleeved on the surface of the pin shaft, and has the characteristics of diverse functions, wide range of applications and easy use.

Description

Technical Field

[0001] The invention relates to the technical field of pipe bending, in particular to a bending machine with adjustable angle for building pipes. Background Art

[0002] Building pipes can be divided into the following categories according to their use: structural pipes, fluid conveying pipes, decorative pipes and electrical conduit pipes. According to their appearance, they can be divided into the following categories: round pipes, square pipes, oval pipes, etc. Based on actual use, it is necessary to use a bending machine to bend metal pipes to different degrees.

[0003] After searching, announcement number CN118527560B discloses a multi-angle bending device and bending method for refrigeration pipes, including a frame, a straightening assembly, a feeding assembly, a bending assembly, a transmission assembly, a cutting assembly, a rejection assembly, a detection assembly and a control console, the straightening assembly is fixed on the right side of the frame, the feeding assembly, the bending assembly, the cutting assembly, the rejection assembly, the detection assembly and the control console are fixed on the top of the frame, and the transmission assembly is arranged inside the frame; the cutting assembly includes a fixed seat 2 and a cutting knife, the fixed seat 2 is fixed on the top of the frame, the top of the frame is fixedly connected to a motor 5, the fixed seat 2 bearing is connected to a rotating shaft 3, the output shaft of the motor 5 is fixedly connected to the rotating shaft 3, and the left end of the rotating shaft 3 is fixedly connected to a cam. The device solves the problem that the current workers and bending devices cooperate to bend heating and cooling pipes, which is time-consuming and labor-intensive, and has low appearance accuracy.

[0004] Although the pipe bending machines in the existing technology have the ability to adjust at multiple angles and precisely control the bending angle, there are still deficiencies in the bending function. For example, the bending angles and shapes of pipes in structures such as building door and window frames, stair handrails, guardrails, art installations, and connectors are all different. Some require curved pipes with smooth transitions, some require pipes with a single bending angle, some require pipes with multiple bending angles, and some require pipes with spatial bending angles. The existing bending machines cannot simultaneously meet the bending requirements of pipes of different shapes in different building structures. Summary of the Invention

[0005] The purpose of the present invention is to provide a building pipe bending machine with adjustable angle, aiming to solve the problems existing in the existing pipe bending machines.

[0006] To achieve the above object, the present invention provides the following technical solution: a bending machine with adjustable angle for building pipes, comprising:

[0007] An inner rotating module, the inner rotating module comprising an inner core;

[0008] An outer rotating module, the outer rotating module comprising a rotating mother ring, the inner core being movably disposed in the rotating mother ring;

[0009] A dual rotor assembly disposed within the inner core, the dual rotor assembly comprising dual drums rotating about respective axes;

[0010] A radial adjustment module, comprising a telescopic cylinder 1 and a single rotating cylinder. The telescopic cylinder 1 is fixedly disposed in the rotating mother ring. The single rotating cylinder is connected to the telescopic cylinder 1. The inner walls of the double rotating cylinder and the single rotating cylinder are both provided with limiting protrusions.

[0011] An adjustable bending module, the adjustable bending module includes an integrated bending mold and an adjustment component, three groups of the integrated bending molds are movably arranged in the double rotating drum and the single rotating drum respectively, the integrated bending mold includes a pin shaft, roller one, roller two, roller three and a limit groove, the roller one, roller two and roller three are all fixedly sleeved on the surface of the pin shaft, the outer sides of the roller one, roller two and roller three are all provided with a limit groove, the limit protrusion is in sliding contact with the limit groove, and the adjustment component is connected to the pin shaft.

[0012] As a further solution of the present invention, the adjustment assembly includes telescopic cylinder 2, base plate 1, a limit frame, a rotating shaft, base plate 2 and base plate 3. Base plate 1 is fixedly connected to telescopic cylinder 2, the two sets of pins corresponding to the double rotating cylinders are connected to the surface of base plate 2, and the pins corresponding to the single rotating cylinder are connected to the surface of base plate 3. Rotating shafts are fixedly connected on both sides of the limit frame, and the two rotating shafts are respectively connected to base plate 1 and base plate 2. Base plate 3 passes through the limit frame.

[0013] As a further solution of the present invention, the cross-sections of the roller one, roller two and roller three are circular, trapezoidal and triangular respectively.

[0014] As a further solution of the present invention, the inner rotating module also includes a driving member and a mounting hole. The mounting hole is provided on the surface of the inner core, and the double rotating drums are respectively provided in the mounting holes. The driving member is used to control the rotation of the inner core.

[0015] As a further solution of the present invention, the outer rotating module also includes a second driving member and a radial groove. The surface of the rotating mother ring is provided with a radial groove. The telescopic cylinder 1 is fixedly connected in the radial groove. The second driving member is used to control the rotation of the rotating mother ring.

[0016] As a further solution of the present invention, the dual rotor assembly further includes a third driving member, which is fixedly disposed on the inner side of the inner core, and the dual rotating drums are both transmission-connected to the third driving member.

[0017] As a further solution of the present invention, it also includes a frame assembly, and the driving member 1, driving member 2 and telescopic cylinder 2 are all fixedly connected to the frame assembly. The frame assembly includes a first annular guide rail, a second annular guide rail and a feeding guide rail. The rotating mother ring and the inner core are respectively rotatably arranged in the first annular guide rail and the second annular guide rail.

[0018] As a further solution of the present invention, it also includes a rotary feeding clamp fixedly arranged in the feeding guide rail, and the rotary feeding clamp can fix, clamp, move and rotate the pipe.

[0019] The beneficial effects of the present invention are as follows: on the one hand, it can process pipe fittings into arc-shaped pipes with smooth transitions, process one bending angle at a time, process two or three bending angles at a time, and perform spatial three-dimensional bending according to actual needs in a more flexible operating mode, which is suitable for different bending requirements of building pipes for different purposes; on the other hand, it can automatically select corresponding rollers according to the shape or cross-sectional shape of the pipe, which is not only suitable for bending pipes of different shapes, but also suitable for straightening pipes of different shapes, solving the problems of single bending function and inconvenient use, and has the characteristics of diverse functions, wide application range and easy use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is the first stereogram of the present invention.

[0021] Figure 2 It is an exploded view of the present invention.

[0022] Figure 3 It is a three-dimensional diagram of the rotating module in an embodiment of the present invention.

[0023] Figure 4 This is a three-dimensional diagram of a dual rotor assembly according to an embodiment of the present invention.

[0024] Figure 5 This is an assembly diagram of the rotating module and the dual rotor group in an embodiment of the present invention.

[0025] Figure 6 This is a three-dimensional diagram of a radial adjustment module according to an embodiment of the present invention.

[0026] Figure 7 This is an assembly diagram of the external rotation module and the radial adjustment module according to an embodiment of the present invention.

[0027] Figure 8 Schematic diagram of the disassembly of the adjustable bending module according to an embodiment of the present invention.

[0028] Figure 9 This is an assembly diagram of the rotating module, dual rotor assembly, radial adjustment module and adjustable bending module in an embodiment of the present invention.

[0029] Figure 10This is a plan view schematically illustrating the first function of the present invention.

[0030] Figure 11 This is a plan view schematically illustrating the second function of the present invention.

[0031] Figure 12 This is a plan view schematically illustrating the third function of the present invention.

[0032] Figure 13 This is a second perspective view of the present invention.

[0033] Reference numerals: 1-frame assembly, 11-first annular guide rail, 12-second annular guide rail; 13-feeding guide rail;

[0034] 2-inner rotating module, 21-driving member 1, 22-inner core, 221-mounting hole, 222-avoidance groove, 23-gear 1;

[0035] 3-external rotating module, 31-driving member 2, 32-rotating mother ring, 321-radial groove, 33-gear 2;

[0036] 4-double rotor assembly, 41-driving element three, 42-double rotating drum, 421-limiting protrusion, 43-gear three;

[0037] 5- radial adjustment module, 51- telescopic cylinder 1, 52- mobile frame, 53- single rotating drum;

[0038] 6-Adjustable bending module, 61-Integrated bending die, 611-Pin shaft, 612-Roller 1, 613-Roller 2, 614-Roller 3, 615-Limiting groove, 62-Adjusting assembly, 621-Telescopic cylinder 2, 622-Base plate 1, 623-Limiting frame, 624-Rotating shaft, 625-Base plate 2, 626-Base plate 3;

[0039] 7- Rotating feeding fixture;

[0040] 8-Control display panel;

[0041] 9-Pipe fittings. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0043] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0044] See also Figures 2 to 12In one embodiment of the present invention, a bending machine for building pipes with adjustable angles includes a control display panel 8 for facilitating user selection of different bending instructions according to needs or pipe parameters, and further includes:

[0045] An inner rotating module 2, wherein the inner rotating module 2 comprises an inner core 22;

[0046] The outer rotating module 3 includes a rotating mother ring 32, and the inner core 22 is movably disposed in the rotating mother ring 32;

[0047] A dual rotor assembly 4 is disposed within the inner core 22, wherein the dual rotor assembly 4 includes dual drums 42 that rotate around respective axes;

[0048] The radial adjustment module 5 includes a telescopic cylinder 1 51, a movable frame 52, and a single rotating cylinder 53. The fixed end of the telescopic cylinder 1 51 is fixedly disposed in the rotating mother ring 32. The single rotating cylinder 53 is connected to the surface of the movable frame 52. The movable end of the telescopic cylinder 1 51 is fixedly connected to the movable frame 52. The inner walls of the double rotating cylinder 42 and the single rotating cylinder 53 are both provided with limiting protrusions 421.

[0049] The adjustable bending module 6 includes an integrated bending mold 61 and an adjustment component 62. The three groups of integrated bending molds 61 are movably arranged in the double rotating drum 42 and the single rotating drum 53 respectively. The integrated bending mold 61 includes a pin 611, roller one 612, roller two 613, roller three 614 and a limiting groove 615. The roller one 612, roller two 613 and roller three 614 are all fixedly sleeved on the surface of the pin 611. The outer sides of the roller one 612, roller two 613 and roller three 614 are all provided with limiting grooves 615. The limiting protrusion 421 is in sliding contact with the limiting groove 615. The adjustment component 62 is connected to the pin 611.

[0050] See also Figure 8 and Figure 9Furthermore, the adjustment assembly 62 includes a telescopic cylinder 2 621, a base plate 1 622, a limiting frame 623, a rotating shaft 624, a base plate 2 625 and a base plate 3 626. The base plate 1 622 is fixedly connected to the telescopic cylinder 2 621. The two sets of pins 611 corresponding to the double rotating cylinder 42 are connected to the surface of the base plate 2 625. The pins 611 corresponding to the single rotating cylinder 53 are connected to the surface of the base plate 3 626. The limiting frame 623 is fixedly connected to the rotating shaft 624 on both sides. The two rotating shafts 6 24 are respectively connected to the base plate 1 622 and the base plate 2 625, and the base plate 3 626 passes through the limit frame 623. The base plate 1 622 can only move horizontally (it exists as a fixed reference), and the base plate 2 625 and the base plate 3 626 can both rotate relative to the rotating shaft 624. The base plate 2 625 and the base plate 3 626 can slide relative to each other. On the basis of ensuring that the movement of the integrated bending mold 61 is controlled by the telescopic cylinder 2 621, it can also meet the rotation and radial movement functions of the three groups of integrated bending molds 61.

[0051] See also Figure 3 Furthermore, the inner rotating module 2 also includes a driving member 21, a mounting hole 221, an avoidance groove 222 and a gear 23. The surface of the inner core 22 is provided with a mounting hole 221 and an avoidance groove 222. The double rotating cylinders 42 are respectively arranged in the mounting holes 221. The gear 23 is fixedly arranged on the surface of the inner core 22. The driving member 21 controls the rotation of the inner core 22 by being connected to the gear 23.

[0052] See also Figure 7 Furthermore, the outer rotating module 3 also includes a driving member 2 31, a radial groove 321 and a gear 2 33. The surface of the rotating mother ring 32 is provided with a radial groove 321. The telescopic cylinder 1 51 is fixedly connected in the radial groove 321. The gear 2 33 is fixedly provided on the surface of the rotating mother ring 32. The driving member 2 31 controls the rotation of the rotating mother ring 32 by means of a transmission connection with the gear 2 33.

[0053] See also Figures 4 to 7 Furthermore, the dual rotor group 4 also includes a driving member three 41 and a gear three 43. The driving member three 41 is fixedly arranged on the inner side of the inner core 22, and the gear three 43 is fixedly arranged on the surface of the dual rotating drum 42. The dual rotating drum 42 is connected to the driving member three 41 through the gear three 43.

[0054] In an embodiment of the present invention, the cross-sections of roller one 612, roller two 613 and roller three 614 are circular, trapezoidal and triangular respectively. Of course, a single set of integrated bending molds 61 is not limited to roller one 612, roller two 613 and roller three 614, but also includes roller four, roller five, etc. The cross-sectional shape of each set of rollers is not limited to circular, trapezoidal and triangular, but can also be trapezoidal, hyperbolic and hexagonal, etc. Of course, the overall shape of the roller can also be cylindrical. The cross-sectional shape and arrangement order of roller one 612, roller two 613 and roller three 614 can also be set by the user, which greatly expands the scope of application of bending.

[0055] See also Figure 1 and Figure 13 In one embodiment of the present invention, a frame assembly 1 is further included, wherein the control display panel 8, the driving member 1 21, the driving member 2 31 and the telescopic cylinder 2 621 are all fixedly connected to the frame assembly 1, and the frame assembly 1 includes a first annular guide rail 11, a second annular guide rail 12 and a feeding guide rail 13, and the rotating mother ring 32 and the inner core 22 are rotatably arranged in the first annular guide rail 11 and the second annular guide rail 12 respectively.

[0056] Furthermore, it also includes a rotating feeding clamp 7 fixedly arranged in the feeding guide rail 13, and the rotating feeding clamp 7 can fix, clamp, move and rotate the pipe 9.

[0057] In the embodiment of the present invention, since the rotary feeding clamp 7 is relatively mature in the existing technology, its specific structure is no longer described in detail. The rotary feeding clamp 7 is used in conjunction with the inner rotating module 2, the outer rotating module 3, the double rotor group 4, the radial adjustment module 5 and the adjustable bending module 6 to perform spatial bending on the pipe, further improving the flexibility and adjustable space of the pipe bending.

[0058] Working principle: Function 1: Refer to the attached Figure 10First, the driving member 2 31 is used to control the rotation of the rotating mother ring 32, so as to adjust the position of the radial adjustment module 5 to the middle position above the double rotating cylinder 42, and then the telescopic cylinder 2 621 is used to control the simultaneous movement of the three sets of integrated bending dies 61 to select matching rollers according to the cross-sectional shape of the pipe 9. For example, when the cross-section of the pipe 9 is triangular, the roller 3 614 can be adjusted to the specified position, and then the driving member 3 41 is used to control the rotation of the double rotating cylinder 42 and the integrated bending die 61, and then the pipe 9 is fed into the integrated bending die 61, and then the telescopic cylinder 1 51 is used to control the integrated bending die 61 in the single rotating cylinder 53 to extrude the pipe 9, which is used to bend the pipe 9 into a certain curvature on the one hand, and on the other hand, the friction force generated by the extrusion force is used to rotate the rotating double rotating cylinder 42 and the rollers located therebetween. The integrated bending die 61 in the single rotating drum 53 can drive the pipe 9 to move, so that the pipe 9 can be processed into a smoothly transitioned arc-shaped pipe. When the minimum vertical distance between the integrated bending die 61 in the single rotating drum 53 and the two groups of integrated bending dies 61 below it is equal to the outer diameter of the pipe 9, it can also play a role in straightening the pipe 9. In the process of using the telescopic cylinder 2 621 to control the three groups of integrated bending dies 61 and using the telescopic cylinder 1 51 to control the integrated bending die 61 in the single rotating drum 53 to extrude the pipe 9, displacement sensors are used to monitor and accurately control the moving distance to ensure the accuracy of the processing. It should be noted that when the rotating double rotating drum 42 cannot control the movement of the pipe 9, the single rotating drum 53 can be controlled to rotate by adding a drive unit to ensure the stability of the movement of the pipe 9.

[0059] Function 2: Reference Figure 11 First, the driving member 21 is used to control the rotation of the inner core 22 to adjust the double rotating drum 42 and the internal integrated bending die 61 to a certain position. On the premise of ensuring that the rotary feeding fixture 7 can smoothly pass the pipe 9 through this position, the driving member 2 31 is then used to control the rotation of the rotating mother ring 32, the single rotating drum 53 and the integrated bending die 61 to control the pipe 9 to bend with any set of integrated bending dies 61 in the double rotating drum 42 as the axis. Since the roller cross-section in each set of integrated bending dies 61 can be set to a triangle, circle or ellipse that matches the shape of the pipe 9, it can also be set to a smooth cylinder of different diameters, so that it can be suitable for bending pipes 9 of different sizes and shapes.

[0060] Function 3: Reference Figure 12Based on the bending operation method in function two, by simultaneously controlling the rotation of the rotating mother ring 32 and the inner core 22, bending can be performed simultaneously through three sets of integrated bending dies 61. Since the pipe 9 shown in the figure is small in size, only two different bending angles can be processed at one time. When the pipe 9 is longer in size, the pipe 9 is fixedly clamped by the rotating feeding fixture 7. Since one end of the pipe 9 is limited, the pipe 9 can be processed into three sets of different bending angles at one time. In both functions, the pipe 9 can be three-dimensionally bent by controlling the movement and rotation of the rotating feeding fixture 7.

[0061] To sum up, the present application utilizes a structural method in which an inner rotating module 2, an outer rotating module 3, a dual rotor group 4, a radial adjustment module 5 and an adjustable bending module 6 are coordinated. On the one hand, it can process the pipe fitting 9 into a smoothly transitioned arc pipe, process one bending angle at a time, process two or three bending angles at a time, and perform spatial three-dimensional bending according to actual needs in a more flexible operating method, which is suitable for different bending requirements of building pipes for different purposes. On the other hand, it can automatically select the corresponding roller according to the shape or cross-sectional shape of the pipe, which is not only suitable for bending pipes of different shapes, but also suitable for straightening pipes of different shapes, solving the problems of single bending function and inconvenient use, and has the characteristics of diverse functions, wide application range and easy use.

[0062] For those skilled in the art, although several embodiments and examples of the present invention have been described, these embodiments and examples are provided as examples and are not intended to limit the scope of the invention. These new embodiments can be implemented in various other ways, and various omissions, substitutions, and changes can be made without departing from the scope of the invention.

[0063] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A bending machine with adjustable angle for building pipes, characterized in that: include: An inner rotating module (2), the inner rotating module (2) comprising an inner core (22); An outer rotating module (3), the outer rotating module (3) comprising a rotating mother ring (32), the inner core (22) being movably disposed in the rotating mother ring (32); A dual rotor assembly (4) disposed within the inner core (22), the dual rotor assembly (4) comprising dual rotating drums (42) rotating around respective axes; A radial adjustment module (5), the radial adjustment module (5) comprising a telescopic cylinder (51) and a single rotating cylinder (53), the telescopic cylinder (51) being fixedly arranged in a rotating mother ring (32), the single rotating cylinder (53) being connected to the telescopic cylinder (51), and the inner walls of the double rotating cylinder (42) and the single rotating cylinder (53) being both provided with a limiting protrusion (421); An adjustable bending module (6), the adjustable bending module (6) comprising an integrated bending module (61) and an adjusting assembly (62), three groups of the integrated bending modules (61) being movably arranged in a double rotating drum (42) and a single rotating drum (53), respectively, the integrated bending module (61) comprising a pin shaft (611), a roller one (612), a roller two (613), a roller three (614) and a limiting groove (615), the roller one (612), the roller two (613) and the roller three (614) being fixedly sleeved on the surface of the pin shaft (611), the outer sides of the roller one (612), the roller two (613) and the roller three (614) being provided with a limiting groove (615), the limiting protrusion (421) being in sliding contact with the limiting groove (615), and the adjusting assembly (62) being connected to the pin shaft (611); The adjustment assembly (62) includes a second telescopic cylinder (621), a first base plate (622), a limiting frame (623), a rotating shaft (624), a second base plate (625) and a third base plate (626). The first base plate (622) is fixedly connected to the second telescopic cylinder (621). The two groups of pins (611) corresponding to the double rotating cylinders (42) are connected to the surface of the second base plate (625). The pins (611) corresponding to the single rotating cylinder (53) are connected to the surface of the third base plate (626). The two sides of the limiting frame (623) are fixedly connected with rotating shafts (624). The two rotating shafts (624) are respectively connected to the first base plate (622) and the second base plate (625). The third base plate (626) passes through the limiting frame (623).

2. The building pipe bending machine with adjustable angle according to claim 1, characterized in that: The cross sections of the roller one (612), the roller two (613) and the roller three (614) are circular, trapezoidal and triangular respectively.

3. The building pipe bending machine with adjustable angle according to claim 1, characterized in that: The inner rotating module (2) further comprises a driving member (21) and a mounting hole (221). The mounting hole (221) is provided on the surface of the inner core (22). The double rotating drums (42) are respectively arranged in the mounting holes (221). The driving member (21) is used to control the rotation of the inner core (22).

4. The building pipe bending machine with adjustable angle according to claim 3, characterized in that: The outer rotating module (3) further comprises a second driving member (31) and a radial groove (321). The surface of the rotating mother ring (32) is provided with a radial groove (321). The first telescopic cylinder (51) is fixedly connected in the radial groove (321). The second driving member (31) is used to control the rotation of the rotating mother ring (32).

5. The building pipe bending machine with adjustable angle according to claim 4, characterized in that: The dual rotor assembly (4) further comprises a third driving member (41), wherein the third driving member (41) is fixedly arranged on the inner side of the inner core (22), and the dual rotating drums (42) are both in transmission connection with the third driving member (41).

6. The building pipe bending machine with adjustable angle according to claim 5, characterized in that: The invention also includes a frame assembly (1), wherein the first driving member (21), the second driving member (31) and the second telescopic cylinder (621) are all fixedly connected to the frame assembly (1), and the frame assembly (1) includes a first annular guide rail (11), a second annular guide rail (12) and a feeding guide rail (13), and the rotating mother ring (32) and the inner core (22) are rotatably arranged in the first annular guide rail (11) and the second annular guide rail (12) respectively.

7. The building pipe bending machine with adjustable angle according to claim 6, characterized in that: It also includes a rotating feeding clamp (7) fixedly arranged in the feeding guide rail (13), and the rotating feeding clamp (7) is capable of fixedly clamping, moving and rotating the pipe (9).

Images