Blanking mechanism of pipe cutting machine

Abstract

The utility model relates to the technical field of laser pipe cutting equipment, and discloses a blanking mechanism of a pipe cutting machine, which comprises a bracket capable of vertically ascending and descending, a material receiving and unloading plate with one end hinged on the bracket and capable of being upwards turned to a horizontal state or downwards turned to an inclined state, and a turnover driving component for driving the material receiving and unloading plate to turn over, guide rollers which extend towards the two inclined sides of the material receiving and discharging plate are rotationally arranged on the material receiving and discharging plate, the rolling direction of the guide rollers is perpendicular to the inclined direction, and the guide rollers partially protrude out of the upper end face of the material receiving and discharging plate. And the device is suitable for pipe fittings with different lengths and pipe diameters, the pipe fittings slide down more smoothly, and the blanking deviation degree of the pipe fittings is obviously reduced.

Description

Technical Field

[0001] This utility model relates to the field of laser tube cutting equipment technology, and in particular to a tube cutting machine feeding mechanism. Background Technology

[0002] Chinese Patent No. CN209062663U discloses an automatic unloading device for zero tail material of a pipe cutting machine, including a main support, a transverse slide rail, a transverse carriage, a lifting mechanism, and an unloading mechanism. The transverse slide rail is provided on the main support, and two transverse carriages are slidably connected on the transverse slide rail. The lifting mechanism is provided on the transverse carriages, and the unloading mechanism is provided at the upper end of the lifting mechanism. The unloading mechanism includes a translation cylinder, a translation slide rail, a cylinder support plate, an unloading cylinder, an unloading plate, and an unloading mounting plate. The drive end of the translation cylinder is connected to the unloading mounting plate, the unloading mounting plate is slidably connected to the translation slide rail, the rear lower end of the unloading plate is hinged to the unloading mounting plate, and the rear upper end of the unloading plate is hinged to the drive end of the unloading cylinder.

[0003] The unloading mechanism described above uses sliding friction when unloading pipe fittings. The friction is relatively large, the surface of the pipe fittings is easily worn and the falling is relatively slow. If the length of the pipe fittings is long, the pipe fittings will deflect at an angle during the falling process, resulting in a high deviation in the falling of the pipe fittings and often failing to fall accurately to the preset position. Utility Model Content

[0004] This invention addresses the shortcomings of existing pipe cutting machine unloading mechanisms, which suffer from high friction and deflection during the falling process, preventing the pipe from accurately falling to the preset position. It provides a pipe cutting machine unloading mechanism that allows for smooth falling and minimizes deflection of the pipe angle during the falling process.

[0005] To solve the above-mentioned technical problems, the present invention provides a solution through the following technical method:

[0006] A pipe cutting machine unloading mechanism includes a bracket, a receiving and unloading plate that is hinged to the bracket at one end and can be flipped up to a horizontal state or flipped down to an inclined state, and a flipping drive assembly that drives the receiving and unloading plate to flip. The receiving and unloading plate is rotatably provided with guide rollers that extend to both sides of the receiving and unloading plate that are inclined towards the receiving and unloading plate and whose rolling direction is perpendicular to the inclined direction. The guide rollers partially protrude from the upper end surface of the receiving and unloading plate.

[0007] The above solution involves installing guide rollers on the receiving and unloading plate. These guide rollers reduce friction and provide guidance, transforming the sliding friction during pipe unloading into rolling friction. This makes the pipe slide down more smoothly while reducing wear. The design of the guide rollers' rolling direction ensures that the pipe slides down diagonally opposite the supporting unloading plate, reducing the probability and magnitude of deflection during descent and allowing the pipe to fall into the designated area.

[0008] Preferably, the guide roller is hollow inside and its two ends are rotatably connected to the receiving and unloading plate via bearings.

[0009] By adopting the above solution, the weight is reduced and the load on the servo motor is decreased.

[0010] Preferably, at least two sets of guide rollers are arranged parallel to each other in a direction perpendicular to the inclination of the receiving and unloading plate.

[0011] Preferably, the receiving and unloading plate includes a support frame formed by welding steel pipes and a cover plate fixed to the upper end of the support frame with a smooth and flat upper surface. The two ends of the guide rollers are rotatably connected to the support frame, and a clearance groove is provided on the cover plate for the guide rollers to partially pass through.

[0012] Preferably, the flipping drive assembly is a cylinder. Two sets of cylinders are symmetrically arranged on both sides below the receiving and unloading plate. One end of the cylinder is hinged to the side wall of the bracket, and the other end is hinged to the lower end face of the receiving and unloading plate away from its hinged end.

[0013] Preferably, the support is vertically guided and lifted on the bed of the cutting machine through a vertical guide structure and a vertical drive assembly. When the support is raised, the receiving and unloading plate is in a horizontal support state; when the support is lowered, the receiving and unloading plate is in an inclined unloading state.

[0014] Using the above scheme, after the support is raised, the receiving and unloading plate is horizontally supported, which facilitates the cutting machine to cut the pipe fittings; after the support is lowered, the pipe fittings are away from the cutting machine, and at this time, the receiving and unloading plate is tilted to facilitate the falling of the pipe fittings.

[0015] Preferably, the vertical drive assembly includes a rack vertically fixed to the bracket, a servo motor, and a drive gear coaxially fixed to the output shaft of the servo motor and meshing with the rack. The servo motor is fixed to the machine base, and the machine base is fixedly connected to the bed of the cutting machine.

[0016] Using the above scheme, the lifting and lowering of the bracket equipped with a rack is achieved by driving the rotation of the gear.

[0017] Preferably, the vertical guide structure includes a guide rail fixed vertically on the bracket and a slider embedded in the guide rail for guiding and sliding. The slider is fixed on the mounting plate, and the mounting plate is fixedly connected to the bed of the cutting machine.

[0018] The above scheme serves to guide the vertical movement of the support.

[0019] Preferably, a lubrication structure for lubricating the rack is provided on the mounting plate.

[0020] Preferably, the lubrication structure is a felt-lubricated gear that meshes with the rack.

[0021] By adopting the above solution, the drive gears and racks are lubricated, reducing wear on both and improving the smoothness of their movement.

[0022] This utility model, by adopting the above technical solutions, has significant technical effects: the receiving and unloading plate can be raised and lowered with the support, the receiving and unloading plate can be flipped up and down and is equipped with guide rollers. The above design enables the receiving and unloading plate to have both the function of rising support and falling unloading. The setting of guide rollers changes the unloading of pipes from sliding friction to rolling friction, reducing the probability of pipe deflection, and can also guide the direction of pipe falling, so that the pipe falls into the preset unloading area. This unloading mechanism has both support and unloading functions, is suitable for pipes of different lengths, and the pipe unloading is smoother and the unloading deviation is significantly reduced. Attached Figure Description

[0023] Figure 1 This is a front view of the material receiving and unloading plate of the pipe cutting machine feeding mechanism in a horizontal state according to this embodiment;

[0024] Figure 2 This is a front view of the material receiving and unloading plate of the pipe cutting machine feeding mechanism in an inclined state according to this embodiment;

[0025] Figure 3 This is an exploded view of the receiving and unloading plate in this embodiment;

[0026] Figure 4 This is an isometric view of the material receiving and unloading plate of a pipe cutting machine feeding mechanism in this embodiment, with the plate in a horizontal position.

[0027] The parts referred to by the numbers in the above attached diagrams are as follows: 1. Bracket; 2. Base; 3. Cylinder; 4. Receiving and unloading plate; 41. Cover plate; 42. Support frame; 5. Mounting plate; 6. Guide roller; 7. Guide rail; 8. Rack; 9. First hinge seat; 10. Second hinge seat; 11. Servo motor; 12. Third hinge seat; 13. Felt lubricated gear; 14. Slider; 15. Drive gear. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0029] A tube cutting machine unloading mechanism includes a support 1 that moves vertically along the cutting machine body, and a receiving and unloading plate 4 that is hinged at one end to a third hinge seat 12 at the upper end of the support 1 and at the other end to be driven by a cylinder 3 to rotate up and down relative to the third hinge seat 12. Two sets of cylinders 3 are provided and symmetrically distributed on both sides below the receiving and unloading plate 4. One end of the cylinder 3 is hinged to a first hinge seat 9 fixed on the support 1 and the other end is hinged to a second hinge seat 10 fixed at the lower end of the receiving and unloading plate 4. The second hinge seat 10 is located at the end of the receiving and unloading plate 4 away from its hinge end.

[0030] The vertical lifting and lowering of the support 1 is achieved through a combination of a vertical guide structure and a vertical drive assembly. The vertical guide structure includes two sets of guide rails 7 vertically and parallelly fixed on the support 1 and a slider 14 embedded in the guide rails 7 for guiding and sliding. The slider 14 is fixed on the mounting plate 5, which is fixedly connected to the bed of the cutting machine. The vertical drive assembly includes a rack 8 vertically fixed on the support 1, a servo motor 11, and a drive gear 15 coaxially fixed on the output shaft of the servo motor 11 and meshing with the rack 8. The rack 8 is a helical rack 8, and the drive gear 15 is a helical gear. The servo motor 11 is fixed on the machine base 2, which is fixedly connected to the bed of the cutting machine. A felt lubricating gear 13 is rotatably mounted on the mounting plate 5, passing through the support 1 and meshing with the rack 8. The felt lubricating gear 13 is made of felt and impregnated with lubricating oil. The support 1 is a frame structure, and the felt lubricating gear 13 will not collide with the support 1 during the lifting and lowering process.

[0031] The maximum upward stroke of the receiving and unloading plate 4 is in a horizontal state, and the flipping angle range is 0° to 45°. A bearing is provided at the hinge point between the receiving and unloading plate 4 and the first hinge seat 9 to ensure the smooth rotation of the receiving and unloading plate 4.

[0032] The receiving and unloading plate 4 is rotatably provided with guide rollers 6 extending to both sides of the receiving and unloading plate 4 and rolling in a direction perpendicular to the direction of inclination. The receiving and unloading plate 4 includes a support frame 42 formed by welding steel pipes and a cover plate 41 fixed to the upper end of the support frame 42 with a smooth and flat upper surface. The two ends of the guide rollers 6 are rotatably connected to the support frame 42 and the connection is achieved by bearings to achieve smooth rotation. Two sets of guide rollers 6 are arranged parallel to each other along the direction perpendicular to the inclination of the receiving and unloading plate 4 and are located at both ends of the receiving and unloading plate 4. A clearance groove is opened on the cover plate 41 for the guide rollers 6 to partially pass through. The guide rollers 6 partially protrude from the upper end surface of the receiving and unloading plate 4.

[0033] The aforementioned unloading mechanism can be set in one or more groups according to the length of the pipe fitting. On average, one unloading mechanism is added for every 2 meters of pipe fitting extension. Multiple unloading mechanisms are arranged in a line at intervals on the bed of the cutting machine. All servo motors 11 and cylinders 3 are connected to the controller. The switching of the movement of servo motors 11 and cylinders 3 is realized by the existing logic programming of the controller. When support is required, the support 1 rises to the preset height, and the receiving and unloading plate 4 flips from the inclined state to the horizontal state. When unloading is required, the support 1 falls to the preset height, and the receiving and unloading plate 4 switches from the horizontal state to the downward inclined state. The pipe fitting rolls diagonally downward along the inclination of the receiving and unloading plate 4 and the guide roller 6 above it into the preset unloading area.

[0034] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A tube cutting machine unloading mechanism, comprising a support (1), a receiving and unloading plate (4) hinged at one end to the support (1) and capable of being flipped up to a horizontal state or down to an inclined state, and a flipping drive assembly for driving the receiving and unloading plate (4) to flip over, characterized in that: The receiving and unloading plate (4) is rotatably provided with guide rollers (6) that extend to both sides of the receiving and unloading plate (4) and roll in a direction perpendicular to the direction of inclination. The guide rollers (6) are partially protruding from the upper end surface of the receiving and unloading plate (4).

2. The material feeding mechanism for a pipe cutting machine according to claim 1, characterized in that: The guide roller (6) is hollow inside and its two ends are rotatably connected to the receiving and unloading plate (4) through bearings.

3. The material feeding mechanism for a pipe cutting machine according to claim 2, characterized in that: At least two sets of guide rollers (6) are arranged parallel to each other in a direction that is perpendicular to the material receiving and unloading plate (4).

4. The material feeding mechanism of a pipe cutting machine according to claim 1, characterized in that: The receiving and unloading plate (4) includes a support frame (42) formed by welding steel pipes and a cover plate (41) fixed to the upper end of the support frame (42) with a smooth and flat upper surface. The two ends of the guide roller (6) are rotatably connected to the support frame (42). A clearance groove is provided on the cover plate (41) for the guide roller (6) to pass through partially.

5. The material feeding mechanism for a pipe cutting machine according to claim 1, characterized in that: The flipping drive assembly is a cylinder (3). Two sets of cylinders (3) are symmetrically arranged on both sides below the receiving and unloading plate (4). One end of the cylinder (3) is hinged to the side wall of the bracket (1) and the other end is hinged to the lower end face of the receiving and unloading plate (4) away from its hinge end.

6. The material feeding mechanism of a pipe cutting machine according to claim 1, characterized in that: The support (1) is vertically guided and lifted on the bed of the cutting machine through the vertical guide structure and the vertical drive assembly. When the support (1) rises, the receiving and unloading plate (4) is in a horizontal support state; when the support (1) falls, the receiving and unloading plate (4) is in an inclined unloading state.

7. The material feeding mechanism for a pipe cutting machine according to claim 6, characterized in that: The vertical drive assembly includes a rack (8) vertically fixed on the bracket (1), a servo motor (11), and a drive gear (15) coaxially fixed on the output shaft of the servo motor (11) and meshing with the rack (8). The servo motor (11) is fixed on the base (2), and the base (2) is fixedly connected to the bed of the cutting machine.

8. The material feeding mechanism for a pipe cutting machine according to claim 7, characterized in that: The vertical guide structure includes a guide rail (7) vertically fixed on the bracket (1) and a slider (14) embedded in the guide rail (7) for guiding and sliding. The slider (14) is fixed on the mounting plate (5), and the mounting plate (5) is fixedly connected to the bed of the cutting machine.

9. The material feeding mechanism for a pipe cutting machine according to claim 7, characterized in that: A lubrication structure for lubricating the rack (8) is provided on the mounting plate (5).

10. The tube cutting machine feeding mechanism according to claim 9, characterized in that: The lubrication structure is a felt-lubricated gear (13) that meshes with the rack (8).

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