A pipe bending machine for fire extinguisher production

Abstract

The utility model relates to the field of fire extinguisher production, especially a pipe bender for fire extinguisher production, including frame, one end of frame is equipped with adjusting mechanism, the other end of frame is equipped with pressure mechanism, still include bending mechanism, be equipped with turnover mechanism on bending mechanism, bending mechanism is located pressure mechanism front side, turnover mechanism is located bending mechanism upside. Through the cylinder pushover turnover arm lets the pressure wheel frame overturn to the pipe bending wheel rear side, immediately makes the pressure wheel and pipe bending wheel clamp the metal pipe of being bent, then through the electromagnetic seat generates opposite magnetism with the magnetic locking rod to let the magnetic locking rod end insert into the lock hole of pipe bending wheel, thereby to the position of pressure wheel frame is locked, and then can greatly reduce the volume of whole bending structure, thereby provides greater activity space for the curved metal pipe.

Description

Technical Field

[0001] This utility model relates to the field of fire extinguisher manufacturing, and in particular to a pipe bending machine for fire extinguisher manufacturing. Background Technology

[0002] According to the patent document with publication number CN222625862U, a clamping device is used to clamp and fix a metal tube. A servo electric cylinder drives a rack to move, and the rack moves to rotate a gear, thereby rotating a rotating block to the required angle. At the same time, the extrusion wheel extrudes and bends the metal tube to the required angle. A third cylinder drives the clamping device to rotate the metal tube through a connecting block. In addition, a fourth cylinder drives the clamping device to move the metal tube axially through a connecting rod.

[0003] Existing pipe bending machines rely on a rocker arm to hold the metal pipe against the bending wheel when bending metal pipes. Currently, most rocker arms are relatively large. When the two bending points of some metal pipes are on the same plane and close to each other, interference may occur when bending the metal pipe with the rocker arm. In addition, according to the aforementioned patent document, the above structure is also difficult to bend metal pipes with two or more bending points that are close to each other. During the rotation of the pipe, a third cylinder drives the connecting block to rotate the clamp, thereby adjusting the rotation angle of the metal pipe. This structure can precisely control the rotation angle of the metal pipe, affecting the bending quality. Utility Model Content

[0004] The purpose of this invention is to provide a pipe bending machine for fire extinguisher production in order to solve the above-mentioned problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A pipe bending machine for producing fire extinguishers includes a frame, an adjustment mechanism at one end of the frame, a clamping mechanism at the other end of the frame, and a bending mechanism with a flipping mechanism on the bending mechanism. The bending mechanism is located in front of the clamping mechanism.

[0007] The bending mechanism includes a pipe bending frame, a pipe bending wheel rotatably connected inside the pipe bending frame, and a pressure roller frame on the side of the pipe bending frame, with a pressure roller rotatably connected inside the pressure roller frame.

[0008] The flipping mechanism includes a flipping arm, one end of which is provided with a flipping seat, and the other end of which is fixed to the top of the pressure roller frame. The flipping seat is fixed to the top of the bending roller. Two locking arms are fixed to the top and bottom of the pressure roller frame. Each locking arm has an electromagnetic seat fixed to the side away from the bending roller, and each locking arm has a magnetic locking rod on the side close to the bending roller.

[0009] Preferably, a cylinder is hinged to the top of the pipe bending frame, and a support is provided at the top of the tilting arm, with the cylinder extension and retraction part hinged to the support.

[0010] Preferably, the end of the magnetic locking rod away from the bending wheel is slidably connected inside the electromagnetic base, and two locking holes are opened at the top and bottom of the bending wheel, and the locking holes correspond to the lower end of the magnetic locking rod.

[0011] Preferably, the bottom of the pipe bending frame is fixed to the other end of the machine frame, and a gear for driving the pipe bending wheel to rotate is provided on the lower side of the pipe bending wheel. A rack is meshed on the front side of the gear, and a pipe bending hydraulic cylinder is fixedly installed at one end of the rack.

[0012] Preferably, the clamping mechanism includes a sliding frame, a positioning frame is provided on the front side of the sliding frame, the sliding frame is slidably connected to the other end of the frame, the positioning frame is fixedly connected to the frame, multiple support wheels are rotatably connected inside the sliding frame and the positioning frame, and a clamping hydraulic cylinder is fixedly provided on the rear side of the sliding frame.

[0013] Preferably, the adjustment mechanism includes a movable frame, a three-jaw chuck is rotatably connected to the upper end of the movable frame, a rotary motor is fixedly installed at the input end of the three-jaw chuck, two symmetrical concave grooves are opened at the bottom of the movable frame, and a screw is threadedly connected to the bottom of the movable frame between the two concave grooves, and a movable motor is fixedly installed at the input end of the screw.

[0014] Preferably, the frame is provided with two guide rails at the position of the movable frame, and the two guide rails are respectively engaged with two concave grooves.

[0015] The advantages compared to existing technologies are as follows: By using a cylinder to push the flipping arm, the pressure roller frame flips to the rear of the bending roller, which in turn clamps the metal tube to be bent between the pressure roller and the bending roller. Then, an electromagnetic seat generates a magnetism opposite to that of the magnetic locking rod, causing the end of the magnetic locking rod to be inserted into the locking hole of the bending roller, thereby locking the position of the pressure roller frame. This greatly reduces the volume of the entire bending structure, thus providing more room for the bent metal tube to move. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a perspective view of a pipe bending machine for producing fire extinguishers according to the present invention;

[0018] Figure 2 This is a front view of a pipe bending machine for producing fire extinguishers according to the present invention;

[0019] Figure 3 yes Figure 2 Sectional view at point BB;

[0020] Figure 4 This is a schematic diagram of the adjustment mechanism of a pipe bending machine for producing fire extinguishers according to the present invention;

[0021] Figure 5 This is a schematic diagram of the pressing mechanism of a pipe bending machine for producing fire extinguishers according to the present invention;

[0022] Figure 6 This is a schematic diagram of the tilting mechanism of a pipe bending machine for producing fire extinguishers according to the present invention;

[0023] Figure 7 This is a schematic diagram of the gear structure of a pipe bending machine for producing fire extinguishers according to the present invention;

[0024] Figure 8 This is a schematic diagram of the pressure roller frame structure of a pipe bending machine for producing fire extinguishers according to the present invention.

[0025] The annotations in the attached figures are explained as follows:

[0026] 1. Bending mechanism; 2. Tilting mechanism; 3. Pressing mechanism; 4. Frame; 5. Adjusting mechanism; 11. Bending frame; 12. Bending wheel; 13. Pressing wheel frame; 14. Pressing wheel; 15. Bending hydraulic cylinder; 16. Rack; 17. Gear; 21. Cylinder; 22. Tilting seat; 23. Tilting arm; 24. Locking arm; 25. Electromagnetic seat; 26. Magnetic locking rod; 31. Pressing hydraulic cylinder; 32. Sliding frame; 33. Support wheel; 34. Positioning frame; 51. Moving frame; 52. Three-jaw chuck; 53. Rotary motor; 54. Screw; 55. Moving motor. Detailed Implementation

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] The present invention will be further described below with reference to the accompanying drawings:

[0029] like Figures 1-8As shown, a pipe bending machine for fire extinguisher production includes a frame 4, an adjustment mechanism 5 at one end of the frame 4, a pressing mechanism 3 at the other end of the frame 4, and a bending mechanism 1. The bending mechanism 1 is equipped with a flipping mechanism 2 and is located in front of the pressing mechanism 3.

[0030] In this embodiment: the bending mechanism 1 includes a bending frame 11, a bending wheel 12 is rotatably connected inside the bending frame 11, a pressure wheel frame 13 is provided on the side of the bending frame 11, a pressure wheel 14 is rotatably connected inside the pressure wheel frame 13, the bottom of the bending frame 11 is fixed to the other end of the frame 4, a gear 17 for driving the bending wheel 12 to rotate is provided on the lower side of the bending wheel 12, a rack 16 is meshed on the front side of the gear 17, a bending hydraulic cylinder 15 is fixedly provided at one end of the rack 16, the pressure wheel 14 inside the pressure wheel frame 13 flips downward so that the metal tube is caught on the rear side of the bending wheel 12, and then the extension part of the bending hydraulic cylinder 15 pushes the rack 16 to move, the movement of the rack 16 causes the gear 17 to drive the bending wheel 12 to rotate inside the bending frame 11, thereby bending the metal tube between the bending wheel 12 and the pressure wheel 14.

[0031] In this embodiment: the flipping mechanism 2 includes a flipping arm 23, one end of which is provided with a flipping seat 22, and the other end of which is fixed to the top of the pressure roller frame 13. The flipping seat 22 is fixed to the top of the bending roller 12. Two locking arms 24 are fixed to the top and bottom of the pressure roller frame 13. An electromagnetic seat 25 is fixed to the side of each locking arm 24 away from the bending roller 12. A magnetic locking rod 26 is provided to the side of each locking arm 24 near the bending roller 12. A cylinder 21 is hinged to the top of the bending roller frame 11. A support is provided to the top of the flipping arm 23. The telescopic part of the cylinder 21 is hinged to the support. The end of the magnetic locking rod 26 away from the bending roller 12 is slidably connected to the inside of the electromagnetic seat 25. Two locking holes are provided at the top and bottom of the bending roller 12. The hole corresponds to the lower end of the magnetic locking rod 26. The extension part of the cylinder 21 pushes the support to make the flipping arm 23 flip downward with the upper end of the flipping seat 22 as the flipping center. The flipping arm 23 flips the pressure roller frame 13 downward. When the pressure roller 14 fastens the metal tube to the back of the bending roller 12, the front ends of the two locking arms 24 on the upper and lower sides of the pressure roller frame 13 are respectively located at the top and bottom of the bending roller 12. At this time, the electromagnetic seat 25 on the locking arm 24 is energized to generate a magnetism opposite to that of the magnetic locking rod 26. Then, the magnetic locking rod 26 moves into the lock hole of the bending roller 12, so that the end of the magnetic locking rod 26 away from the locking arm 24 is stuck in the lock hole of the bending roller 12. At this time, the metal tube can be clamped on the back of the bending roller 12.

[0032] In this embodiment: the clamping mechanism 3 includes a sliding frame 32, a positioning frame 34 is provided on the front side of the sliding frame 32, the sliding frame 32 is slidably connected to the other end of the frame 4, the positioning frame 34 is fixedly connected to the frame 4, and multiple support wheels 33 are rotatably connected inside the sliding frame 32 and the positioning frame 34. A clamping hydraulic cylinder 31 is fixedly provided on the rear side of the sliding frame 32. The sliding frame 32 is pushed forward by the extension part of the clamping hydraulic cylinder 31, and the metal tube is clamped and supported by the positioning frame 34 and the multiple support wheels 33 inside the sliding frame 32.

[0033] In this embodiment: the adjustment mechanism 5 includes a movable frame 51, a three-jaw chuck 52 is rotatably connected to the upper end of the movable frame 51, a rotary motor 53 is fixedly installed at the input end of the three-jaw chuck 52, two symmetrical concave grooves are opened at the bottom of the movable frame 51, and a screw 54 is threadedly connected to the bottom of the movable frame 51 between the two concave grooves. A movable motor 55 is fixedly installed at the input end of the screw 54. The frame 4 is provided with two guide rails at the position of the movable frame 51, and the two guide rails are respectively engaged with the two concave grooves. The rotating part of the movable motor 55 drives the screw 54 to rotate, and the rotation of the screw 54 drives the movable frame 51 to move along the guide rails towards the bending mechanism 1. The movement of the movable frame 51 pushes the metal tube on the three-jaw chuck 52. At the same time, after the metal tube is bent, the bending direction of the metal tube can be adjusted by rotating the three-jaw chuck 52 on the movable frame 51 through the rotation of the rotating part of the rotary motor 53.

[0034] Working principle: In use, firstly, one end of the metal tube to be bent is placed on the three-jaw chuck 52 to fix the metal tube. Then, the rotating part of the moving motor 55 drives the screw 54 to rotate. The rotation of the screw 54 drives the moving frame 51 to move along the guide rail towards the bending mechanism 1. The movement of the moving frame 51 pushes the metal tube on the three-jaw chuck 52, and then the other end of the metal tube passes through the sliding frame 32 and the positioning frame 34. At this time, the other end of the metal tube is located behind the bending wheel 12. Then, the telescopic part of the clamping hydraulic cylinder 31 pushes the sliding frame 32 forward. The positioning frame 34 and the multiple support wheels 33 inside the sliding frame 32 clamp and support the metal tube. At the same time, the telescopic part of the cylinder 21 pushes the support to make the tilting arm 23 tilt downward with the upper end of the tilting seat 22 as the tilting center. The rotating arm 23 rotates to drive the pressure roller frame 13 to rotate downwards. When the pressure roller 14 clamps the metal tube behind the bending roller 12, the front ends of the two locking arms 24 on the upper and lower sides of the pressure roller frame 13 are located at the top and bottom of the bending roller 12, respectively. At this time, the electromagnetic seat 25 on the locking arm 24 is energized to generate a magnetism opposite to that of the magnetic locking rod 26, which causes the magnetic locking rod 26 to move into the locking hole of the bending roller 12. Thus, the end of the magnetic locking rod 26 away from the locking arm 24 is locked in the locking hole of the bending roller 12. At this time, the metal tube can be clamped behind the bending roller 12. Then, the extension part of the bending hydraulic cylinder 15 pushes the rack 16 to move. The movement of the rack 16 causes the gear 17 to drive the bending roller 12 to rotate in the bending frame 11, thereby bending the metal tube between the bending roller 12 and the pressure roller 14.

[0035] When it is necessary to change the bending direction of the metal tube, the telescopic part of the clamping hydraulic cylinder 31 drives the sliding frame 32 to move backward, and then stops clamping and supporting the metal tube. At the same time, the electromagnetic seat 25 is de-energized and no longer generates magnetism. At this time, the magnetism of the magnetic locking rod 26 attracts the electromagnetic seat 25. Under the action of magnetism, the magnetic locking rod 26 will retract into the electromagnetic seat 25 and disengage from the locking hole of the bending wheel 12. Then, the three-jaw chuck 52 of the rotating part of the rotary motor 53 can rotate on the moving frame 51 to adjust the bending direction of the metal tube. By repeating the above operation, the metal tube can be bent at multiple angles and in multiple directions.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A pipe bending machine for fire extinguisher production, comprising a frame (4), wherein one end of the frame (4) is provided with an adjusting mechanism (5), and the other end of the frame (4) is provided with a clamping mechanism (3), characterized in that: It also includes a bending mechanism (1), which is provided with a flipping mechanism (2), and the bending mechanism (1) is located in front of the pressing mechanism (3); The bending mechanism (1) includes a pipe bending frame (11), a pipe bending wheel (12) is rotatably connected inside the pipe bending frame (11), a pressure wheel frame (13) is provided on the side of the pipe bending frame (11), and a pressure wheel (14) is rotatably connected inside the pressure wheel frame (13). The flipping mechanism (2) includes a flipping arm (23), one end of which is provided with a flipping seat (22), and the other end of which is fixed to the top of the pressure roller frame (13). The flipping seat (22) is fixed to the top of the bending roller (12). The top and bottom of the pressure roller frame (13) are both fixed with two locking arms (24). Each locking arm (24) is fixed with an electromagnetic seat (25) on the side away from the bending roller (12), and each locking arm (24) is provided with a magnetic locking rod (26) on the side close to the bending roller (12).

2. A pipe bending machine for producing fire extinguishers according to claim 1, characterized in that: The top of the pipe bending frame (11) is hinged with a cylinder (21), and the top of the flipping arm (23) is provided with a support. The telescopic part of the cylinder (21) is hinged to the support.

3. A pipe bending machine for fire extinguisher production according to claim 1, characterized in that: The end of the magnetic locking rod (26) away from the bent tube wheel (12) is slidably connected inside the electromagnetic base (25). The bent tube wheel (12) has two locking holes at its top and bottom, and the locking holes correspond to the lower end of the magnetic locking rod (26).

4. A pipe bending machine for fire extinguisher production according to claim 1, characterized in that: The bottom of the pipe bending frame (11) is fixed to the other end of the frame (4). The lower side of the pipe bending wheel (12) is provided with a gear (17) for driving it to rotate. The front side of the gear (17) is meshed with a rack (16). One end of the rack (16) is fixedly provided with a pipe bending hydraulic cylinder (15).

5. A pipe bending machine for producing fire extinguishers according to claim 1, characterized in that: The clamping mechanism (3) includes a sliding frame (32), a positioning frame (34) is provided on the front side of the sliding frame (32), the sliding frame (32) is slidably connected to the other end of the frame (4), the positioning frame (34) is fixedly connected to the frame (4), and multiple support wheels (33) are rotatably connected inside the sliding frame (32) and the positioning frame (34), and a clamping hydraulic cylinder (31) is fixedly provided on the rear side of the sliding frame (32).

6. A pipe bending machine for fire extinguisher production according to claim 1, characterized in that: The adjustment mechanism (5) includes a movable frame (51), a three-jaw chuck (52) is rotatably connected to the upper end of the movable frame (51), a rotary motor (53) is fixedly installed at the input end of the three-jaw chuck (52), two symmetrical concave grooves are opened at the bottom of the movable frame (51), and a screw (54) is threadedly connected to the bottom of the movable frame (51) between the two concave grooves, and a movable motor (55) is fixedly installed at the input end of the screw (54).

7. A pipe bending machine for producing fire extinguishers according to claim 6, characterized in that: The frame (4) is provided with two guide rails at the position of the movable frame (51), and the two guide rails are respectively engaged with two concave grooves.

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