Laser cutting pipe fitting feeding device and method based on automatic continuous feeding

Abstract

The invention relates to the related technical field of laser cutting, in particular to a laser cutting pipe fitting feeding device and method based on automatic continuous feeding, the laser cutting pipe fitting feeding device comprises a support and an assembly plate, and further comprises two supporting hooks, the two supporting hooks are movably arranged on the support, and each supporting hook is connected with a lifting mechanism arranged on the support; the lifting mechanism can drive the supporting hook to move in the vertical direction. According to the pipe fitting conveying device, a pipe fitting is lifted upwards through the two supporting hooks, the two bearing bases are promoted to automatically give way, in the descending process of the two supporting hooks, the pipe fitting can be kept on the two bearing bases, then the pipe fitting is conveyed through the conveying wheel set, and therefore the conveying function of the pipe fitting is achieved through cooperation between mechanical structures; compared with the prior art, complexity of a control system is simplified, production cost input is reduced, the pipe fitting can naturally and stably stay on the two bearing seats, and adverse effects caused by collision between the pipe fitting and the bearing seats are effectively avoided.

Description

Technical Field

[0001] The present invention relates to the technical field related to laser cutting, and in particular to a laser cutting pipe feeding device and method based on automatic continuous feeding. Background Art

[0002] Household pipe fittings play an important role in modern home decoration. Their selection and use have a direct impact on household water safety and quality of life. The advantages of laser cutting include high precision, high efficiency and low risk of contamination. Compared with traditional shearing or plasma cutting, laser cutting can provide higher precision and smaller heat-affected zone, reducing the need for subsequent heat treatment.

[0003] When performing laser cutting of pipe fittings, the pipe fittings to be cut need to be transported to the cutting equipment. The existing loading method is usually done manually by staff, which is inefficient. Alternatively, a robot is used to transfer the pipe fittings to be cut to the cutting table. The movement of the robot usually depends on programming or sensor control. When a problem occurs in a certain link, it is easy to cause damage to the robot, pipe fittings or cutting equipment, resulting in greater losses. In addition, the use of various sensors also increases the investment cost of production, making it difficult to achieve the ideal loading effect.

[0004] In this regard, a corresponding unloading mechanism is set above the transmission track of the pipe fittings. When working, the unloading mechanism directly transports the pipe fittings to be cut to the transmission track. However, in order to facilitate the smooth transportation of the pipe fittings after they fall on the transmission track, usually a part of space needs to be reserved between the falling point of the pipe fittings and the transmission track of the pipe fittings. In this case, after the pipe fittings fall, there may be a small displacement due to the collision with the transmission track, resulting in the accuracy of transportation being affected. Summary of the invention

[0005] The object of the present invention is to provide a laser cutting pipe feeding device and method based on automatic continuous feeding to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A laser cutting pipe feeding device based on automatic continuous feeding includes a support and an assembly plate, and also includes:

[0008] Two supporting hooks are movably provided on the support, and each of the two supporting hooks is connected to a lifting mechanism provided on the support, and the lifting mechanism can drive the supporting hooks to move in a vertical direction;

[0009] A box body is fixed on the support and is used to store the pipes to be cut. The box body is provided with a material drop control mechanism, and the material drop control mechanism is used to transfer the pipes in the box body to the two support hooks one by one.

[0010] Two supporting seats are movably provided on the assembly plate for receiving the pipes lifted by the supporting hooks. The two supporting seats are connected to a sliding mechanism installed on the assembly plate, and the sliding mechanism can cause the two supporting seats to move along the length direction of the assembly plate;

[0011] A conveying wheel group, a plurality of which are arranged on the assembly plate, and the plurality of conveying wheel groups are distributed along the length direction of the assembly plate, and are used to convey the pipe fittings located on the supporting seat so as to move the pipe fittings toward the laser cutting table;

[0012] When the pipes on the two supporting seats are conveyed, the supporting seat away from the conveying wheel set can be driven by the automatic compensation mechanism arranged on the assembly plate to move closer to the other supporting seat, and the automatic compensation mechanism can also prompt the drop control mechanism to be triggered.

[0013] As a further solution of the present invention: two guide posts are fixed on the assembly plate through two protruding blocks, the sliding mechanism includes a first movable seat and a second movable seat slidably connected to the two guide posts, the first movable seat cooperates with the automatic compensation mechanism, and the first movable seat and the second movable seat are respectively connected to the two sets of lifting mechanisms through a set of sliding matching components;

[0014] Among them, the two supporting seats are fixedly connected to the first movable seat and the second movable seat respectively, and the outer periphery of the guide column is provided with a first cylindrical spring and a second cylindrical spring, both of which have their head ends connected to the protrusion block, and the tail ends of the first cylindrical spring and the second cylindrical spring are respectively connected to the first movable seat and the second movable seat.

[0015] As a further solution of the present invention: the lifting mechanism includes a guide rail fixed on the support and a vertical arm slidably engaged in the guide rail, the support hook is fixed on the vertical arm, and the vertical arm can be driven by an external driving component to slide in the guide rail so that the support hook can perform lifting and lowering movements.

[0016] As a further solution of the present invention: the sliding fitting assembly includes a follower plate fixedly connected to the vertical arm through a connecting arm and an elastic telescopic part arranged on the first movable seat, a connecting column that passes through the assembly plate is fixed to the side of the first movable seat away from the supporting seat, the elastic telescopic part includes a guide cylinder fixed to the connecting column and a telescopic column slidably fitted with the guide cylinder, the telescopic column is connected to a spring arranged in the guide cylinder, and the follower plate is provided with a groove body adapted to the telescopic column, the telescopic column extends into the groove body and is slidably connected to the follower plate.

[0017] As a further solution of the present invention: the slot body comprises a first vertical slot, a horizontal slot, a second vertical slot, an inclined slot and a third vertical slot connected to each other, the follower plate is also rotatably provided with a hinge, the rotating shaft of the hinge is connected with a torsion spring, and the hinge is located at one end of the inclined slot away from the second vertical slot;

[0018] A fourth vertical slot is connected between the first vertical slot and the third vertical slot, and an anti-accidental touch structure is provided on the follower plate, and the anti-accidental touch structure can cause the telescopic column to move toward the inside of the guide cylinder.

[0019] As a further solution of the present invention: the anti-mistouch structure includes a limiting track fixed on the follower plate, and a roller is rotatably provided on the telescopic column, the limiting track is adapted to the roller, and the limiting track includes a connected inclined section and a vertical section.

[0020] As a further solution of the present invention: the automatic compensation mechanism includes a horizontal column fixed on the assembly plate and a driving arm slidably arranged on the horizontal column, the driving arm cooperates with the first movable seat, the driving arm is also connected to an external power mechanism, and a driving column is fixed to one end of the driving arm away from the horizontal column, and the driving column cooperates with the falling material control mechanism.

[0021] As a further solution of the present invention: the side of the box body is provided with two strip-shaped openings, the drop control mechanism comprises a first transverse plate and a second transverse plate respectively slidably arranged in the two strip-shaped openings, and the first transverse plate and the second transverse plate are respectively provided with a first through slot and a second through slot, and the two ends of the driving column respectively penetrate the first through slot and the second through slot, and are slidably connected with the first transverse plate and the second transverse plate;

[0022] Wherein, an inclined plate is also provided at the bottom of the box body, and the pipes in the box body can roll onto the two hooks through the inclined plate. The first through groove includes a first inclined groove and a first straight groove connected, and the second through groove includes a second straight groove and a second inclined groove connected.

[0023] A method for feeding a laser-cut pipe, using the feeding device, comprises the following steps:

[0024] Step 1: Place the pipe to be cut in the box;

[0025] Step 2: The lifting mechanism drives the hook to drive the pipe to rise, and the two supporting seats complete a movement away from and close to each other, and the pipe reaches above the two supporting seats;

[0026] Step 3: The lifting mechanism drives the support hook to drive the pipe to descend, and the pipe stops on the two supporting seats;

[0027] Step 4: The conveying wheel group works to convey the lifted pipe, and the automatic compensation mechanism shortens the distance between the two supporting seats;

[0028] Step 5: The automatic compensation mechanism is reset, prompting the material drop control mechanism to add the pipes to be cut to the two support hooks.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] The present application uses two support hooks to lift the pipe upwards and prompt the two support seats to automatically give way. When the two support hooks are lowered, the pipe can be left on the two support seats and then transported by the conveying wheel group. Therefore, the cooperation between the mechanical structures realizes the pipe transportation function, simplifies the complexity of the control system, and reduces the production cost investment.

[0031] Secondly, when working, the lifting mechanism works to drive the two supporting hooks to drive the pipe fittings to rise. In the first part of the journey of the pipe fittings rising, the sliding mechanism is triggered, which will drive the two supporting seats to move away from each other, so as to make room for the rising of the pipe fittings. In the second part of the journey of the pipe fittings rising, the two supporting seats move closer to each other and reset. Finally, the two supporting hooks drive the pipe fittings to the top of the two supporting seats. Then, the lifting mechanism drives the two supporting hooks to descend and reset. Then, the pipe fittings are retained on the two supporting seats. Therefore, the pipe fittings naturally and stably stay on the two supporting seats in the process of the lifting mechanism driving the two supporting hooks to move downward, effectively avoiding the adverse effects caused by the collision between the pipe fittings and the supporting seats. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 The present invention is a structural schematic diagram of an embodiment of a laser cutting pipe feeding device based on automated continuous feeding.

[0033] Figure 2 This is a schematic structural diagram from another angle of an embodiment of a laser cutting pipe feeding device based on automated continuous feeding.

[0034] Figure 3 This is a schematic structural diagram from another angle of an embodiment of a laser cutting pipe feeding device based on automated continuous feeding.

[0035] Figure 4 A side view of an embodiment of a laser cutting pipe loading device based on automated continuous feeding.

[0036] Figure 5 for Figure 3 A magnified view of the structure at center.

[0037] Figure 6 The present invention is a schematic structural diagram of a support in an embodiment of a laser cutting pipe feeding device based on automated continuous feeding.

[0038] Figure 7 The present invention is a schematic structural diagram of a sliding mechanism in an embodiment of a laser cutting pipe feeding device based on automated continuous feeding.

[0039] Figure 8 This is a structural exploded diagram of the sliding mechanism in an embodiment of a laser cutting pipe feeding device based on automated continuous feeding.

[0040] Fig. 9 The present invention is a schematic structural diagram of a follower plate in an embodiment of a laser cutting pipe feeding device based on automated continuous feeding.

[0041] Fig.10 The present invention is a structural schematic diagram of a material drop control mechanism in an embodiment of a laser cutting pipe feeding device based on automated continuous feeding.

[0042] In the figure: 1, support; 2, guide rail; 3, box; 4, vertical arm; 5, support hook; 6, support seat; 7, assembly plate; 8, cross column; 9, protrusion block; 10, guide column; 11, first cylindrical spring; 12, second cylindrical spring; 13, driving arm; 1301, driving column; 14, first movable seat; 15, second movable seat; 16, guide cylinder; 17, telescopic column; 1701, roller; 18, follower plate; 1801, first vertical slot; 1802, horizontal slot; 1803, second vertical slot ; 1804, inclined groove; 1805, third vertical groove; 1806, fourth vertical groove; 1807, entry and exit groove; 19, limiting track; 1901, inclined section; 1902, vertical section; 20, hinge; 21, first horizontal plate; 2101, first inclined groove; 2102, first straight groove; 22, second horizontal plate; 2201, second straight groove; 2202, second inclined groove; 23, inclined plate; 2301, enclosure side strip; 24, connecting arm; 25, connecting column; 26, conveying wheel group. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] In addition, when an element in the present invention is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only embodiment.

[0045] See also Figure 1-Figure 10 In an embodiment of the present invention, a laser cutting pipe feeding device based on automatic continuous feeding includes a support 1 and an assembly plate 7, and also includes:

[0046] Two supporting hooks 5 are movably provided on the support 1, and each of the two supporting hooks 5 is connected to a lifting mechanism provided on the support 1, and the lifting mechanism can drive the supporting hooks 5 to move in a vertical direction;

[0047] A box 3 is fixed on the support 1 and is used to store the pipes to be cut. A material drop control mechanism is provided on the box 3. The material drop control mechanism is used to transfer the pipes in the box 3 to the two support hooks 5 one by one.

[0048] Two supporting seats 6 are movably provided on the assembly plate 7, and are used to receive the pipes lifted by the supporting hooks 5. The two supporting seats 6 are connected to a sliding mechanism installed on the assembly plate 7, and the sliding mechanism can cause the two supporting seats 6 to move along the length direction of the assembly plate 7;

[0049] A conveying wheel set 26, a plurality of which are provided on the assembly plate 7, and the plurality of conveying wheel sets 26 are distributed along the length direction of the assembly plate 7, and are used to convey the pipes on the supporting seat 6 so as to move the pipes toward the laser cutting table;

[0050] When the pipes on the two supporting seats 6 are conveyed, the supporting seat 6 away from the conveying wheel group 26 can be driven by the automatic compensation mechanism arranged on the assembly plate 7 to move closer to the other supporting seat 6, and the automatic compensation mechanism can also prompt the drop control mechanism to be triggered.

[0051] Furthermore, the conveying wheel set 26 is conventionally configured, specifically, including two flush rotating wheels. When conveying the pipe, the two rotating wheels clamp the pipe under the push of the cylinder, and then the two rotate synchronously but in different directions, so that the pipe to be cut located on the two supporting seats 6 can move toward the laser cutting table for laser cutting processing;

[0052] For a set of conveying wheel groups 26 close to the supporting seats 6, every time the pipe is lifted by the two supporting hooks 5 onto the two supporting seats 6, one end of the pipe is located between the two rotating wheels of the conveying wheel group 26, and then the two rotating wheels clamp and convey the pipe;

[0053] Furthermore, the driving motor that drives the rotating wheel to rotate is a speed-regulating motor. During the operation of the laser cutting equipment, the speed-regulating motor adjusts the rotation speed of the rotating wheel according to the actual progress of the pipe, and then adjusts the transmission speed of the pipe on the supporting seat 6. Then, the pipe lifted by the two supporting hooks 5 to the two supporting seats 6 can keep up with the previous pipe in time to ensure the continuity of the pipe entering the laser cutting equipment, realize the continuous feeding function, and avoid the interruption between the two adjacent pipes entering the laser cutting equipment, which causes the laser cutting equipment to pause and wait. Therefore, the efficiency of the pipe cutting work can be effectively improved.

[0054] In specific implementation, the internal specifications of the box body 3 are the same as the specifications of the pipes to be cut in this batch. The pipes to be cut are placed in the box body 3 one by one, and multiple pipes are arranged from bottom to top in the box body 3. When the falling material control mechanism moves, it can cause the pipe located at the lowest point in the box body 3 to fall down and roll onto the two support hooks 5. Then, the lifting mechanism works to drive the two support hooks 5 to drive the pipe to rise. In the first stroke of the pipe rising, the sliding mechanism is triggered to drive the two support seats 6 away from each other, so as to make space for the pipe to rise. In the second stroke of the pipe rising, the two support seats 6 are moved closer to each other and reset. Finally, the two support hooks 5 drive the pipe to the top of the two support seats 6. Then, the lifting mechanism drives the two support hooks 5 to fall and reset, and then the pipe is left on the two support seats 6.

[0055] Next, the conveying wheel group 26 starts to work, so that the pipes located on the two supporting seats 6 are conveyed. At this time, the automatic compensation mechanism works to drive the supporting seat 6 away from the conveying wheel group 26 to move toward the other supporting seat 6, so as to avoid the pipes being separated from the supporting seat 6 away from the conveying wheel group 26 as the pipes are conveyed, thereby causing the problem of poor stability in pipe transmission.

[0056] To elaborate, in actual production, if a robot is used to load pipes, the robot usually needs to design a more complex movement route and be controlled by complex programming. On the one hand, the production investment cost is relatively high. On the other hand, due to the complexity of the control system, when a problem occurs in a certain link, it is easy to cause damage to the robot, pipes or cutting equipment, resulting in greater losses. The present application uses two support hooks 5 to lift the pipe upwards and prompt the two supporting seats 6 to automatically give way. During the descent of the two support hooks 5, the pipe can be left on the two supporting seats 6, and then transported by the conveying wheel group 26. Therefore, the transportation function of the pipe is realized by utilizing the coordination between the mechanical structures, the complexity of the control system is simplified, and the production cost investment is reduced.

[0057] It should also be added that if the box body 3 is placed above the two supporting seats 6, and the lifting mechanism and the supporting hooks 5 are cancelled, the pipe fittings in the box body 3 are directly added to the supporting seats 6 by the material drop control mechanism. Such an arrangement can also realize the feeding function. However, in order to ensure that the conveying wheel group 26 can smoothly transmit the pipe fittings after the pipe fittings fall onto the supporting seats 6, a certain space needs to be reserved between the box body 3 and the supporting seats 6. This makes it easy for the pipe fittings to collide with the supporting seats 6 when they fall onto the supporting seats 6. The pipe fittings may be slightly displaced on the supporting seats 6 due to the collision, which leads to low accuracy in pipe conveying. In the present application, the pipe fittings automatically stay on the two supporting seats 6 during the process of the lifting mechanism driving the two supporting hooks 5 to move downward. Therefore, the adverse effects caused by the collision between the pipe fittings and the supporting seats 6 are avoided.

[0058] Please refer again Figure 7 Two guide columns 10 are fixed on the assembly plate 7 through two protrusion blocks 9, and the sliding mechanism includes a first movable seat 14 and a second movable seat 15 which are slidably connected to the two guide columns 10, the first movable seat 14 cooperates with the automatic compensation mechanism, and the first movable seat 14 and the second movable seat 15 are respectively connected to the two groups of lifting mechanisms through a group of sliding matching components; the two supporting seats 6 are respectively fixedly connected to the first movable seat 14 and the second movable seat 15, and the outer periphery of the guide column 10 is sleeved with a first cylindrical spring 11 and a second cylindrical spring 12 whose head ends are connected to the protrusion blocks 9, and the tail ends of the first cylindrical spring 11 and the second cylindrical spring 12 are respectively connected to the first movable seat 14 and the second movable seat 15.

[0059] Attach Figure 2Taking the state shown as an example, at this time, there is already a pipe to be cut on the two hooks 5, and the first cylindrical spring 11 and the second cylindrical spring 12 are both in a compressed state. In the previous process in which the lifting mechanism drives the two hooks 5 to drive the pipe to rise, the sliding matching assembly is triggered, and the first cylindrical spring 11 and the second cylindrical spring 12 rebound. As a result, the first movable seat 14 and the second movable seat 15 slide away from each other on the guide column 10, and accordingly, the two supporting seats 6 move away from each other to automatically stagger the space for the pipe to rise. In the process in which the hook 5 drives the pipe to move above the supporting seat 6 and continues to rise, the first movable seat 14 and the second movable seat 15 will move closer to each other and reset, and the first cylindrical spring 11 and the second cylindrical spring 12 will return to their initial compressed state. Then, the lifting mechanism drives the hook 5 to descend. When the hook 5 descends through the supporting seat 6, the pipe naturally and stably stays on the two supporting seats 6.

[0060] Please refer again Figure 1 and Fig. 9 The lifting mechanism includes a guide rail 2 fixed on the support 1 and a vertical arm 4 slidably engaged in the guide rail 2. The hook 5 is fixed on the vertical arm 4, and the vertical arm 4 can be driven by an external driving component to slide in the guide rail 2 so that the hook 5 can be raised and lowered.

[0061] Furthermore, in the present application, when the support hook 5 is lowered through the supporting seat 6, the pipe fittings naturally and stably stay on the two supporting seats 6. Therefore, the lifting and lowering speed of the support hook 5 needs to be appropriate to ensure the stability of the pipe fittings on the supporting seat 6. Specifically, the peripheral driving component can be driven by a threaded rod and a servo motor, and this application will not go into details.

[0062] Since the first movable seat 14 and the second movable seat 15 are connected in the same manner as two sets of sliding matching components, the sliding matching components connected to the first movable seat 14 are described in detail below:

[0063] Please refer again Figure 5 , Figure 8 as well as Fig. 9The sliding fitting assembly includes a follower plate 18 fixedly connected to the vertical arm 4 through a connecting arm 24 and an elastic telescopic member arranged on the first movable seat 14. A connecting column 25 that passes through the assembly plate 7 is fixed to the side of the first movable seat 14 away from the supporting seat 6. The elastic telescopic member includes a guide cylinder 16 fixed to the connecting column 25 and a telescopic column 17 that is slidably fitted with the guide cylinder 16. The telescopic column 17 is connected to a spring arranged in the guide cylinder 16, and the follower plate 18 is provided with a groove body adapted to the telescopic column 17. The telescopic column 17 extends into the groove body and is slidably connected to the follower plate 18. The groove body includes a first vertical groove 1801, a horizontal groove 1802, a second vertical groove 1803, an inclined groove 1804 and a third vertical groove 1805 which are connected to each other. A hinge 20 is also rotatably provided on the follower plate 18. The rotating axis of the hinge 20 is connected with a torsion spring, and the hinge 20 is located at one end of the inclined groove 1804 away from the second vertical groove 1803; a fourth vertical groove 1806 is also connected between the first vertical groove 1801 and the third vertical groove 1805, and an anti-accidental touch structure is also provided on the follower plate 18, and the anti-accidental touch structure can cause the telescopic column 17 to move toward the inside of the guide cylinder 16.

[0064] When the external drive component drives the vertical arm 4 to drive the hook 5 to rise in the guide rail 2, the follower plate 18 rises together with the vertical arm 4. Before the pipe is at the same height as the supporting seat 6, the first vertical slot 1801 passes through the telescopic column 17. Then, after the telescopic column 17 corresponds to the horizontal slot 1802, the first cylindrical spring 11 will rebound, so that the first movable seat 14 slides away from the protruding block 9 on the guide column 10 (correspondingly, the second cylindrical spring 12 rebounds, and the sliding direction of the second movable seat 15 is opposite to the sliding direction of the first movable seat 14), and the two supporting seats 6 are opened away from each other to avoid blocking the rise of the pipe;

[0065] As the follower plate 18 continues to rise, the second vertical slot 1803 passes through the telescopic column 17. At this time, the pipe reaches the top of the supporting seat 6. Subsequently, the inclined slot 1804 passes through the telescopic column 17, causing the telescopic column 17 to give way. The telescopic column 17, the guide cylinder 16 and the connecting column 25 drive the first movable seat 14 to slide toward the protruding block 9, and the first cylindrical spring 11 returns to its initial compression state. Finally, the telescopic column 17 causes the hinge 20 to swing toward the third vertical slot 1805. The telescopic column 17 corresponds to the end of the third vertical slot 1805 away from the inclined slot 1804. After the hinge 20 is separated from the telescopic column 17, it swings back to its original position under the action of the torsion spring.

[0066] It should be noted that although the rebound speed of the first cylindrical spring 11 and the second cylindrical spring 12 is relatively fast, it still takes time. When the lifting and lowering action of the follower plate 18 is continued, in order to prevent the telescopic column 17 from getting stuck in the horizontal groove 1802 when the two rebound, the horizontal groove 1802 is designed to be widened, that is, the width of the horizontal groove 1802 is greater than the diameter of the telescopic column 17.

[0067] The anti-mis-touch structure includes a limiting track 19 fixed on the follower plate 18, and a roller 1701 is rotatably provided on the telescopic column 17, the limiting track 19 is adapted to the roller 1701, and the limiting track 19 includes a connected inclined section 1901 and a vertical section 1902.

[0068] During the ascending process of the follower plate 18, the hinge 20 has a limiting function, so that the third vertical groove 1805 and the fourth vertical groove 1806 can pass through the telescopic column 17, and when the fourth vertical groove 1806 passes through the telescopic column 17, the roller 1701 will be engaged in the limiting track 19 (the cross section of the limiting track 19 is shaped like a "U"), and through the cooperation with the inclined section 1901, the roller 1701 will drive the telescopic column 17 to slide toward the inside of the guide cylinder 16 (it should be emphasized that the roller 1701 is located on the vertical section 1902 Therefore, during the rising process of the follower plate 18, when the horizontal slot 1802 is at the same height as the telescopic column 17, the limiting rail 19 limits the telescopic column 17 through the roller 1701, so that the first cylindrical spring 11 cannot rebound, thereby preventing the two supporting seats 6 from moving away from each other and causing the pipe to fall off. Finally, the roller 1701 is separated from the vertical section 1902, and the telescopic column 17 corresponds to the end of the first vertical slot 1801 away from the fourth vertical slot 1806 again.

[0069] It should be emphasized that after the roller 1701 is separated from the vertical section 1902, the spring provided inside the guide cylinder 16 rebounds, which causes the telescopic column 17 to re-enter the groove on the follower plate 18, and finally the roller 1701 is offset from the limiting track 19;

[0070] Furthermore, in order to ensure that after the roller 1701 is separated from the vertical section 1902, since the first cylindrical spring 11 is in a compressed state, the telescopic column 17 will exert a certain pressure on the side wall of the first vertical groove 1801, and in order for the internal spring of the guide cylinder 16 to rebound smoothly, the elastic potential energy of the internal spring of the guide cylinder 16 must be large enough, and the side wall of the first vertical groove 1801 and the outer wall of the telescopic column 17 are smoothed to reduce friction.

[0071] Please refer again Figure 7The automatic compensation mechanism includes a horizontal column 8 fixed on the assembly plate 7 and a driving arm 13 slidably arranged on the horizontal column 8, the driving arm 13 cooperates with the first movable seat 14, the driving arm 13 is also connected to an external power mechanism, and a driving column 1301 is fixed at one end of the driving arm 13 away from the horizontal column 8, and the driving column 1301 cooperates with the falling material control mechanism.

[0072] Furthermore, the external power mechanism may be a pneumatic cylinder, a hydraulic cylinder or an electric telescopic rod, to which the present application does not impose any specific limitation, and it is only required to be able to drive the driving arm 13 to move on the cross column 8 along the length of the assembly plate 7 .

[0073] When the pipe is lifted onto the two supporting seats 6, the conveying wheel group 26 near the second movable seat 15 starts to work to convey the pipe. In order to prevent the pipe from being separated from the supporting seat 6 arranged on the first movable seat 14, thereby causing the pipe to be unstable, the external power mechanism will drive the driving arm 13 to move along the length direction of the assembly plate 7. Then, the driving arm 13 will abut against the first movable seat 14 and push the first movable seat 14 to move toward the second movable seat 15. Accordingly, the first cylindrical The compression amount of the spring 11 increases. In order to ensure that the first movable seat 14 can be smoothly pushed by the driving arm 13, the follower plate 18 corresponding to the first movable seat 14 is further provided with an inlet and outlet groove 1807. The inlet and outlet groove 1807 is connected to the end of the first vertical groove 1801 away from the horizontal groove 1802 and is perpendicular to the first vertical groove 1801. After the driving arm 13 abuts against the first movable seat 14, the telescopic column 17 can be urged to move out of the follower plate 18 through the inlet and outlet groove 1807.

[0074] Secondly, it should be noted that Figure 5 For example, at this time, the internal spring of the guide cylinder 16 is in a natural state to prevent the telescopic column 17 from stretching after the telescopic column 17 moves out of the follower plate 18 through the entry and exit slot 1807, thereby preventing the telescopic column 17 from being able to move into the follower plate 18 through the entry and exit slot 1807 after the driving arm 13 is reset under the elastic push of the first cylindrical spring 11.

[0075] Please refer again Fig.10The side of the box body 3 is provided with two strip-shaped openings, and the drop control mechanism includes a first transverse plate 21 and a second transverse plate 22 which are respectively slidably arranged in the two strip-shaped openings, and the first transverse plate 21 and the second transverse plate 22 are respectively provided with a first through slot and a second through slot, and the two ends of the driving column 1301 respectively penetrate the first through slot and the second through slot, and are slidably connected with the first transverse plate 21 and the second transverse plate 22. The bottom of the box body 3 is also provided with an inclined plate 23, and the pipes in the box body 3 can roll onto the two hooks 5 through the inclined plate 23, and the first through slot includes a first oblique slot 2101 and a first straight slot 2102 connected, and the second through slot includes a second straight slot 2201 and a second oblique slot 2202 connected.

[0076] by Figure 4 Taking the state shown as an example, at this time, the first horizontal plate 21 does not extend into the box body 3, while the second horizontal plate 22 extends into the box body 3, and the pipes in the box body 3 are all located on the second horizontal plate 22, and one end of the driving column 1301 is located at one end of the first inclined groove 2101 away from the first straight groove 2102, and the other end is located at one end of the second straight groove 2201 away from the second inclined groove 2202;

[0077] When the driving arm 13 moves toward the conveying wheel set 26, the driving column 1301 will first slide with the first transverse plate 21 through the first inclined groove 2101, and then the first transverse plate 21 will extend into the box body 3. In the last stroke of the driving arm 13, the driving column 1301 will slide with the second transverse plate 22 through the second inclined groove 2202, so that the second transverse plate 22 slides toward the outside of the box body 3. Then, the pipe fittings on the second transverse plate 22 will fall down and be received by the first transverse plate 21.

[0078] When the driving arm 13 is returning, the second transverse plate 22 first slides toward the inside of the box body 3, and the second transverse plate 22 is located between the gaps between the two pipe fittings in the lower layer (the distance between the first transverse plate 21 and the second transverse plate 22 is set according to the diameter of the pipe fitting). Therefore, the second transverse plate 22 restricts the pipe fittings except the lowest point. During the latter part of the return of the driving arm 13, the first transverse plate 21 slides toward the outside of the box body 3 again, so that the pipe fitting at the lowest point falls onto the inclined plate 23, and then rolls onto the two supporting hooks 5, completing the automatic replenishment of the pipe fittings.

[0079] It should be added that in order to prevent the pipe from deflecting when rolling on the inclined plate 23 toward the hook 5, a retaining side strip 2301 is provided on both sides of the inclined plate 23, thereby playing a guiding and limiting role in the rolling of the pipe. It should be noted that the length of the retaining side strip 2301 is greater than the length of the inclined plate 23, thereby ensuring that when the pipe rolls onto the hook 5, an axial displacement difference is avoided.

[0080] As another embodiment of the present invention, a method for feeding a laser cutting pipe is also proposed, using the feeding device, comprising the following steps:

[0081] Step 1: Place the pipe to be cut in the box 3;

[0082] Step 2: The lifting mechanism drives the hook 5 to drive the pipe to rise, and the two supporting seats 6 complete a movement away from and close to each other, and the pipe reaches above the two supporting seats 6;

[0083] Step 3: The lifting mechanism drives the hook 5 to drive the pipe to descend, and the pipe stops on the two supporting seats 6;

[0084] Step 4: the conveying wheel set 26 works to convey the lifted pipe, and the automatic compensation mechanism shortens the distance between the two supporting seats 6;

[0085] Step 5: the automatic compensation mechanism is reset, prompting the material drop control mechanism to add the pipes to be cut to the two support hooks 5.

[0086] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0087] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description 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 may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A laser cutting pipe feeding device based on automatic continuous feeding, comprising a support (1), a box body (3) and an assembly plate (7) fixed on the support 1, the box body (3) being provided with a material drop control mechanism, and the assembly plate (7) being provided with a plurality of conveying wheel groups (26) for conveying pipes to a laser cutting table; It is characterized in that Also includes: Two supporting hooks (5) are arranged on the support (1), and each of the two supporting hooks (5) is connected to a lifting mechanism arranged on the support (1), and the lifting mechanism can drive the supporting hooks (5) to move in a vertical direction, and the falling material control mechanism can transfer the pipe fittings to the two supporting hooks (5); Two supporting seats (6) are movably provided on the assembly plate (7) for receiving the pipe lifted by the supporting hook (5); the two supporting seats (6) can be driven by a sliding mechanism provided on the assembly plate (7) to move towards each other; When the pipes located on the two supporting seats (6) are conveyed, the supporting seat (6) away from the conveying wheel group (26) can be driven by the automatic compensation mechanism arranged on the assembly plate (7) to move closer to the other supporting seat (6), and the automatic compensation mechanism can also prompt the drop control mechanism to be triggered.

2. The laser cutting pipe feeding device based on automatic continuous feeding according to claim 1 is characterized in that: Two guide posts (10) are fixed on the assembly plate (7) via two protruding blocks (9); the sliding mechanism comprises a first movable seat (14) and a second movable seat (15) slidably connected to the two guide posts (10); the first movable seat (14) cooperates with the automatic compensation mechanism, and the first movable seat (14) and the second movable seat (15) are respectively connected to the two groups of lifting mechanisms via a group of sliding matching components; The two supporting seats (6) are respectively fixedly connected to the first movable seat (14) and the second movable seat (15); the outer periphery of the guide column (10) is provided with a first cylindrical spring (11) and a second cylindrical spring (12) whose head ends are connected to the protruding block (9); and the tail ends of the first cylindrical spring (11) and the second cylindrical spring (12) are respectively connected to the first movable seat (14) and the second movable seat (15).

3. The laser cutting pipe feeding device based on automatic continuous feeding according to claim 2 is characterized in that: The lifting mechanism comprises a guide rail (2) fixed on the support (1) and a vertical arm (4) slidably engaged in the guide rail (2); the support hook (5) is fixed on the vertical arm (4), and the vertical arm (4) can be driven by an external driving component to slide in the guide rail (2) so that the support hook (5) can perform a lifting movement.

4. The laser cutting pipe feeding device based on automatic continuous feeding according to claim 3 is characterized in that: The sliding fitting assembly comprises a follower plate (18) fixedly connected to the vertical arm (4) via a connecting arm (24) and an elastic telescopic member arranged on the first movable seat (14); a connecting column (25) penetrating the assembly plate (7) is fixed to the side of the first movable seat (14) away from the supporting seat (6); the elastic telescopic member comprises a guide cylinder (16) fixed to the connecting column (25) and a telescopic column (17) slidably fitted to the guide cylinder (16); the telescopic column (17) is connected to a spring arranged in the guide cylinder (16); and the follower plate (18) is provided with a groove body adapted to the telescopic column (17); the telescopic column (17) extends into the groove body and is slidably connected to the follower plate (18).

5. The laser cutting pipe feeding device based on automatic continuous feeding according to claim 4 is characterized in that: The slot body comprises a first vertical slot (1801), a horizontal slot (1802), a second vertical slot (1803), an inclined slot (1804) and a third vertical slot (1805) which are connected to each other; a hinge (20) is rotatably provided on the follower plate (18); a rotating shaft of the hinge (20) is connected to a torsion spring, and the hinge (20) is located at one end of the inclined slot (1804) away from the second vertical slot (1803); A fourth vertical groove (1806) is connected between the first vertical groove (1801) and the third vertical groove (1805), and an anti-accidental touch structure is provided on the follower plate (18), wherein the anti-accidental touch structure can cause the telescopic column (17) to move toward the inside of the guide cylinder (16).

6. The laser cutting pipe feeding device based on automatic continuous feeding according to claim 5 is characterized in that: The anti-mis-touch structure comprises a limiting track (19) fixed on the follower plate (18), and a roller (1701) is rotatably provided on the telescopic column (17), the limiting track (19) is adapted to the roller (1701), and the limiting track (19) comprises a connected inclined section (1901) and a vertical section (1902).

7. The laser cutting pipe feeding device based on automatic continuous feeding according to claim 2 is characterized in that: The automatic compensation mechanism includes a transverse column (8) fixed on the assembly plate (7) and a driving arm (13) slidably arranged on the transverse column (8), the driving arm (13) cooperates with the first movable seat (14), the driving arm (13) is also connected to an external power mechanism, and a driving column (1301) is fixed to one end of the driving arm (13) away from the transverse column (8), and the driving column (1301) cooperates with the falling material control mechanism.

8. The laser cutting pipe feeding device based on automatic continuous feeding according to claim 7 is characterized in that: The side of the box body (3) is provided with two strip-shaped openings, and the drop control mechanism comprises a first transverse plate (21) and a second transverse plate (22) which are respectively slidably arranged in the two strip-shaped openings, and the first transverse plate (21) and the second transverse plate (22) are respectively provided with a first through groove and a second through groove, and the two ends of the driving column (1301) respectively penetrate the first through groove and the second through groove, and are slidably connected with the first transverse plate (21) and the second transverse plate (22); The bottom of the box body (3) is further provided with an inclined plate (23), and the pipe fittings in the box body (3) can roll onto the two hooks (5) through the inclined plate (23), and the first through groove includes a first inclined groove (2101) and a first straight groove (2102) connected to each other, and the second through groove includes a second straight groove (2201) and a second inclined groove (2202) connected to each other.

9. A method for feeding a laser cutting pipe, using the feeding device as claimed in claim 1, characterized in that: The following steps are involved: Step 1, placing the pipe to be cut in the box (3); Step 2: The lifting mechanism drives the support hook (5) to drive the pipe to rise, and the two supporting seats (6) complete a movement away from and towards each other, and the pipe reaches above the two supporting seats (6); Step 3: The lifting mechanism drives the support hook (5) to drive the pipe to descend, and the pipe stops on the two supporting seats (6); Step 4: the conveying wheel set (26) works to convey the lifted pipe, and the automatic compensation mechanism shortens the distance between the two supporting seats (6); Step 5: the automatic compensation mechanism is reset, prompting the material drop control mechanism to add the pipes to be cut to the two support hooks (5).

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