An automatic continuous feeding-based laser cutting pipe fitting loading device and method

Abstract

The present invention relates to the technical field related to laser cutting, and specifically relates to a laser cutting pipe fitting loading device and method based on automatic continuous feeding, including a support and an assembly plate, and further including: a hook, two hooks are movably arranged on the support, and each of the two hooks is connected with a set of lifting mechanisms arranged on the support, and the lifting mechanism can drive the hook to move in the vertical direction; in this application, the pipe fitting is lifted upward by two hooks, and two supporting seats are automatically displaced. During the downward movement of the two hooks, the pipe fitting can be left on the two supporting seats, and then the pipe fitting is transported by the conveying wheel set. Therefore, through the cooperation between mechanical structures, the transportation function of the pipe fitting is realized, the complexity of the control system is simplified, the production cost input is reduced, and the pipe fitting can naturally and stably stay on the two supporting seats, effectively avoiding the adverse effects caused by the collision between the pipe fitting and the supporting seats.

Description

Technical Field

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

[0002] Home pipes play an important role in modern home decoration, and 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 pollution risk. Compared with traditional shearing or plasma cutting, laser cutting can provide higher precision and a smaller heat-affected zone, reducing the need for subsequent heat treatment.

[0003] When performing laser cutting work on pipes, it is necessary to convey the pipes to be cut to the cutting equipment. In the existing feeding methods, it is usually manually carried out by workers, with low efficiency, or a manipulator is used to transfer the pipes to be cut to the cutting table. The movement of the manipulator usually depends on programming or sensor control. When a problem occurs in a certain link, it is easy to cause damage to the manipulator, pipes, or cutting equipment, resulting in greater losses. Moreover, the use of various sensors also increases the production input cost and it is difficult to achieve the ideal feeding effect.

[0004] In response to this, a corresponding blanking mechanism is provided above the transmission track of the pipes. During operation, the blanking mechanism directly conveys the pipes to be cut onto the transmission track. However, in order to facilitate the pipes to be smoothly conveyed after falling onto the transmission track, usually a certain space needs to be reserved between the falling point of the pipes and the transmission track of the pipes. In this case, after the pipes fall, there may be a small displacement due to hitting the transmission track, resulting in the accuracy of the conveyance being affected. Summary of the Invention

[0005] The purpose 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 technique.

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

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

[0008] Hook supports, two of which are movably arranged on the support, and each of the two hook supports is connected to a set of lifting mechanisms arranged on the support, and the lifting mechanism can drive the hook support to move in the vertical direction;

[0009] A box body, fixed on the support, for storing the pipes to be cut, and a blanking control mechanism is arranged on the box body, and the blanking control mechanism is used to transfer the pipes in the box body to the two hook supports 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 tank body includes a connected first vertical tank, a horizontal tank, a second vertical tank, an inclined tank and a third vertical tank. A hinge member is rotatably provided on the follower plate. A torsion spring is connected to the rotation axis of the hinge member, and the hinge member is located at one end of the inclined tank away from the second vertical tank;

[0018] Wherein, a fourth vertical tank is also connected between the first vertical tank and the third vertical tank, and an anti-misoperation structure is also provided on the follower plate. The anti-misoperation structure can urge the telescopic column to move towards the inside of the guide cylinder.

[0019] As a further solution of the present invention: the anti-misoperation structure includes a limit track fixed on the follower plate, and a roller is rotatably provided on the telescopic column. The limit track is adapted to the roller, and the limit 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 cross column fixed on the assembly plate and a driving arm slidably provided on the cross 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 at one end of the driving arm away from the cross column. The driving column cooperates with the blanking control mechanism.

[0021] As a further solution of the present invention: two strip-shaped through openings are provided on the side of the box body. The blanking control mechanism includes a first cross plate and a second cross plate respectively slidably provided in the two strip-shaped through openings. A first through slot and a second through slot are respectively provided on the first cross plate and the second cross plate. Both ends of the driving column respectively penetrate through the first through slot and the second through slot and are slidably connected to the first cross plate and the second cross plate;

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

[0023] A method for loading pipe fittings for laser cutting, using the loading device described above, includes the following steps:

[0024] Step 1, place the pipe fittings to be cut into the box body;

[0025] Step 2, the lifting mechanism drives the hooks to drive the pipe fittings to rise, and the two supporting seats complete a movement of moving away from and approaching each other once, and the pipe fittings reach above the two supporting seats;

[0026] Step 3, the lifting mechanism drives the hooks to drive the pipe fittings to descend, and the pipe fittings stay on the two supporting seats;

[0027] Step 4: The conveying wheel set operates to convey the lifted pipe fittings, and the automatic compensation mechanism causes the distance between the two supporting seats to shorten;

[0028] Step 5: The automatic compensation mechanism resets, prompting the blanking control mechanism to replenish the pipe fittings to be cut on the two hooks.

[0029] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0030] In this application, the pipe fittings are lifted upward by two hooks, and the two supporting seats are automatically displaced. During the downward movement of the two hooks, the pipe fittings can be left on the two supporting seats, and then the conveying wheel set conveys the pipe fittings. Therefore, through the cooperation between mechanical structures, the conveying function of the pipe fittings is realized, the complexity of the control system is simplified, and the production cost input is reduced;

[0031] Secondly, during operation, the lifting mechanism operates to drive the two hooks to drive the pipe fittings to rise. In the first stage of the pipe fittings rising, the sliding mechanism is triggered, which will drive the two supporting seats to move away from each other to facilitate making space for the rising of the pipe fittings. In the second stage of the pipe fittings rising, the two supporting seats move closer and reset. Finally, the two hooks drive the pipe fittings above the two supporting seats. Immediately afterwards, the lifting mechanism drives the two hooks to descend and reset. Furthermore, the pipe fittings are left on the two supporting seats. Therefore, the pipe fittings naturally and stably stay on the two supporting seats during the downward movement of the two hooks driven by the lifting mechanism, effectively avoiding the adverse effects caused by the collision between the pipe fittings and the supporting seats. Description of the Drawings

[0032] Figure 1 It is a schematic structural diagram of an embodiment of a laser cutting pipe fitting feeding device based on automatic continuous feeding.

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

[0034] Figure 3 It is a schematic structural diagram of yet another angle of an embodiment of a laser cutting pipe fitting feeding device based on automatic continuous feeding.

[0035] Figure 4 It is a side view of an embodiment of a laser cutting pipe fitting feeding device based on automatic continuous feeding.

[0036] Figure 5 It is Figure 3 an enlarged structural diagram of part A in

[0037] Figure 6 It is a schematic structural diagram of the support in an embodiment of a laser cutting pipe fitting feeding device based on automatic continuous feeding.

[0038] Figure 7 Schematic structural diagram of a sliding mechanism in an embodiment of a feeding device for laser-cut pipe fittings based on automated continuous feeding.

[0039] Figure 8 Exploded view of the structure of a sliding mechanism in an embodiment of a feeding device for laser-cut pipe fittings based on automated continuous feeding.

[0040] Figure 9 Schematic structural diagram of a follower plate in an embodiment of a feeding device for laser-cut pipe fittings based on automated continuous feeding.

[0041] Figure 10 Schematic structural diagram of a blanking control mechanism in an embodiment of a feeding device for laser-cut pipe fittings based on automated continuous feeding.

[0042] In the figure: 1, support; 2, guide rail; 3, box body; 4, vertical arm; 5, hook; 6, supporting seat; 7, assembly plate; 8, cross column; 9, protruding block; 10, guide post; 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 groove; 1802, horizontal groove; 1803, second vertical groove; 1804, inclined groove; 1805, third vertical groove; 1806, fourth vertical groove; 1807, inlet / outlet groove; 19, limiting track; 1901, inclined section; 1902, vertical section; 20, hinge; 21, first cross plate; 2101, first inclined groove; 2102, first straight groove; 22, second cross plate; 2201, second straight groove; 2202, second inclined groove; 23, inclined plate; 2301, enclosing side strip; 24, connecting arm; 25, connecting column; 26, conveying wheel set. Detailed implementation mode

[0043] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope 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 Figures 1 - 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 sets 26 close to the supporting seat 6, whenever the pipe fitting is lifted onto the two supporting seats 6 by the two lifting hooks 5, one end of the pipe fitting is located between the two rotating wheels of the conveying wheel set 26, and then the two rotating wheels clamp and convey the pipe fitting;

[0053] Furthermore, the drive motor that drives the rotating wheels is a speed-regulating motor. During the operation of the laser cutting equipment, the speed-regulating motor adjusts the rotational speed of the rotating wheels according to the actual progress of the pipe fitting, and then adjusts the transmission speed of the pipe fitting on the supporting seat 6. Furthermore, the pipe fitting lifted onto the two supporting seats 6 by the two lifting hooks 5 can catch up with the previous pipe fitting in time to ensure the continuity of the pipe fitting entering the laser cutting equipment, realize the continuous feeding function, and avoid the problem that the laser cutting equipment needs to pause and wait due to the interruption between two adjacent pipe fittings entering the laser cutting equipment. Therefore, the efficiency of the pipe fitting 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 pipe fittings to be cut in this batch. The pipe fittings to be cut are placed into the box body 3 one by one, and multiple pipe fittings are arranged from bottom to top in the box body 3. When the blanking control mechanism moves, it can cause the pipe fitting at the lowest point in the box body 3 to fall and roll onto the two lifting hooks 5. Immediately afterwards, the lifting mechanism works to drive the two lifting hooks 5 to drive the pipe fitting to rise. During the first stage of the pipe fitting rising, the sliding mechanism is triggered and will drive the two supporting seats 6 to move away from each other to facilitate making space for the rising of the pipe fitting. During the second stage of the pipe fitting rising, the two supporting seats 6 move closer to each other and reset. Finally, the two lifting hooks 5 drive the pipe fitting above the two supporting seats 6. Immediately afterwards, the lifting mechanism drives the two lifting hooks 5 to descend and reset. Furthermore, the pipe fitting is left on the two supporting seats 6;

[0055] Immediately afterwards, the conveying wheel set 26 starts to work, so that the pipe fitting on the two supporting seats 6 is conveyed. At this time, the automatic compensation mechanism works to drive the supporting seat 6 far away from the conveying wheel set 26 to move towards the other supporting seat 6 to avoid the pipe fitting detaching from the supporting seat 6 far away from the conveying wheel set 26 as the pipe fitting is conveyed, which may lead to poor stability of the pipe fitting transmission.

[0056] Specifically, in actual production, if a manipulator is used for feeding pipe fittings, the manipulator usually needs to be designed with a relatively complex motion path and controlled by complex programming. On the one hand, this increases the production cost. On the other hand, due to the complex control system, when a problem occurs in a certain link, it is easy to cause damage to the manipulator, pipe fittings or cutting equipment, resulting in relatively large losses. In this application, two hooks 5 are used to lift the pipe fittings upward and prompt the two supporting seats 6 to automatically give way. During the downward movement of the two hooks 5, the pipe fittings can be left on the two supporting seats 6, and then the conveying wheel set 26 conveys the pipe fittings. Therefore, by using the cooperation between mechanical structures, the conveying function of the pipe fittings is realized, 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 hooks 5 are cancelled, and the pipe fittings in the box body 3 are directly replenished to the supporting seats 6 by the blanking control mechanism, the feeding function can also be realized in this way. However, in order to ensure that the conveying wheel set 26 can smoothly convey 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 undergo a small displacement on the supporting seats 6 due to the collision, resulting in low accuracy of pipe fitting conveying. In this application, the pipe fittings automatically stay on the two supporting seats 6 during the downward movement of the two hooks 5 driven by the lifting mechanism. Therefore, the adverse effects caused by the collision between the pipe fittings and the supporting seats 6 are avoided.

[0058] Please refer to again Figure 7 , two guide posts 10 are fixed on the assembly plate 7 through two protruding blocks 9. The sliding mechanism includes a first movable seat 14 and a second movable seat 15 that are 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 through a set of sliding fit 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 posts 10 is sleeved with a first cylindrical spring 11 and a second cylindrical spring 12 whose first ends are both connected to the protruding blocks 9, and the second 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] To attach Figure 2Taking the state shown as an example, at this time, there is a pipe fitting to be cut on the two hook supports 5, and both the first cylindrical spring 11 and the second cylindrical spring 12 are in a compressed state. In the previous process when the lifting mechanism drives the two hook supports 5 to drive the pipe fitting to rise, the sliding fit assembly is triggered, and the first cylindrical spring 11 and the second cylindrical spring 12 rebound. Then, the first movable seat 14 and the second movable seat 15 slide away from each other on the guide post 10. Correspondingly, the two supporting seats 6 move away from each other to automatically create a space for the rising of the pipe fitting. When the hook support 5 drives the pipe fitting to move above the supporting seat 6 and continue to rise, the first movable seat 14 and the second movable seat 15 will move closer to each other to reset, and the first cylindrical spring 11 and the second cylindrical spring 12 return to their initial compressed states. Immediately afterwards, the lifting mechanism drives the hook support 5 to descend. When the hook support 5 descends past the supporting seat 6, the pipe fitting will naturally and stably stay on the two supporting seats 6.

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

[0061] Furthermore, in this application, when the hook support 5 descends past the supporting seat 6, the pipe fitting naturally and stably stays on the two supporting seats 6. Therefore, the lifting and lowering speed of the hook support 5 needs to be appropriate to ensure the stability of the pipe fitting placed on the supporting seat 6. Specifically, the external driving member can adopt a threaded rod and a servo motor for driving, and this application will not elaborate further on this.

[0062] Since the connection forms of the first movable seat 14 and the second movable seat 15 with the two sets of sliding fit assemblies are the same, the following will specifically describe the sliding fit assembly connected to the first movable seat 14:

[0063] Please refer to again Figure 5 , Figure 8 and Figure 9, the sliding fit assembly includes a follower plate 18 fixedly connected to the vertical arm 4 through a connecting arm 24 and an elastic telescopic member provided on the first movable seat 14. A connecting column 25 penetrating through the assembly plate 7 is fixed on a 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 slidably sleeved with the guide cylinder 16. The telescopic column 17 is connected with 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 with the follower plate 18. The groove body includes a connected first vertical groove 1801, a horizontal groove 1802, a second vertical groove 1803, an inclined groove 1804 and a third vertical groove 1805. A hinge member 20 is rotatably arranged on the follower plate 18. A torsion spring is connected to a rotating shaft of the hinge member 20, and the hinge member 20 is located at an 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-misoperation structure is further provided on the follower plate 18. The anti-misoperation structure can urge the telescopic column 17 to move towards the inside of the guide cylinder 16.

[0064] When the peripheral driving member 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 fitting reaches the same height as the supporting seat 6, the first vertical groove 1801 passes through the telescopic column 17. Subsequently, after the telescopic column 17 corresponds to the horizontal groove 1802, the first cylindrical spring 11 will rebound. Then, the first movable seat 14 slides away from the protruding block 9 on the guide post 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). The two supporting seats 6 move away from each other and open to avoid blocking the rising of the pipe fitting.

[0065] As the follower plate 18 continues to rise, the second vertical groove 1803 passes through the telescopic column 17. At this time, the pipe fitting reaches above the supporting seat 6. Subsequently, the inclined groove 1804 passes through the telescopic column 17, prompting the telescopic column 17 to make a concession. The telescopic column 17, the guide cylinder 16 and the connecting column 25 drive the first movable seat 14 to slide towards the protruding block 9. The first cylindrical spring 11 returns to its initial compressed state. Finally, the telescopic column 17 urges the hinge member 20 to swing towards the inside of the third vertical groove 1805. The telescopic column 17 corresponds to an end of the third vertical groove 1805 away from the inclined groove 1804. After the hinge member 20 is separated from the telescopic column 17, it swings and resets 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 7, the automatic compensation mechanism includes a cross column 8 fixed on the assembly plate 7 and a driving arm 13 slidably arranged on the cross column 8. The driving arm 13 cooperates with the first movable seat 14. The driving arm 13 is also connected with a peripheral power mechanism, and a driving column 1301 is fixed at one end of the driving arm 13 away from the cross column 8. The driving column 1301 cooperates with the blanking control mechanism.

[0072] Further, the peripheral power mechanism can be selected from a cylinder, a hydraulic cylinder or an electric telescopic rod. In this regard, the present application does not make specific limitations, as long as it can drive the driving arm 13 to move along the length of the assembly plate 7 on the cross column 8.

[0073] After the pipe fitting is lifted onto the two supporting seats 6, the conveying wheel set 26 close to the second movable seat 15 starts to work to convey the pipe fitting. In order to prevent the pipe fitting from detaching from the supporting seat 6 arranged on the first movable seat 14, thereby causing instability of the pipe fitting, the peripheral 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 towards the second movable seat 15. Correspondingly, the compression amount of the first cylindrical spring 11 increases. To ensure that the first movable seat 14 can be smoothly pushed by the driving arm 13, on the follower plate 18 corresponding to the first movable seat 14, an access slot 1807 is further provided on the follower plate 18. The access slot 1807 is connected to one end of the first vertical slot 1801 away from the horizontal slot 1802 and is perpendicular to the first vertical slot 1801. After the driving arm 13 abuts against the first movable seat 14, it can cause the telescopic column 17 to move out of the follower plate 18 through the access slot 1807;

[0074] Secondly, it should be noted that, taking the Figure 5 attached state as an example, at this time, the spring inside the guide cylinder 16 is in a natural state to prevent the telescopic column 17 from elongating after moving out of the follower plate 18 through the access slot 1807, so that after the driving arm 13 is reset, under the elastic push of the first cylindrical spring 11, the telescopic column 17 cannot move into the follower plate 18 through the access slot 1807.

[0075] Please refer to again Figure 10, two strip-shaped through openings are provided on the side of the box body 3. The blanking control mechanism includes a first cross plate 21 and a second cross plate 22 that are respectively slidably arranged in the two strip-shaped through openings. The first cross plate 21 and the second cross plate 22 are respectively provided with a first through groove and a second through groove. Both ends of the driving column 1301 respectively penetrate the first through groove and the second through groove, and are slidably connected to the first cross plate 21 and the second cross plate 22. An inclined plate 23 is further provided at the bottom of the box body 3. The pipe fittings in the box body 3 can roll onto the two hooks 5 through the inclined plate 23. The first through groove includes a connected first inclined groove 2101 and a first straight groove 2102, and the second through groove includes a connected second straight groove 2201 and a second inclined groove 2202.

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

[0077] During the process of the driving arm 13 moving towards the conveying wheel set 26, the driving column 1301 will first perform a sliding fit with the first cross plate 21 through the first inclined groove 2101, and then the first cross plate 21 will extend into the box body 3. In the latter part of the stroke of the driving arm 13, the driving column 1301 will perform a sliding fit with the second cross plate 22 through the second inclined groove 2202, so that the second cross plate 22 slides towards the outside of the box body 3. Then, the pipe fittings located on the second cross plate 22 will fall and be received by the first cross plate 21;

[0078] During the return process of the driving arm 13, the second cross plate 22 first slides towards the inside of the box body 3. The second cross plate 22 is located between the gaps of the two lower-layer pipe fittings (the distance between the first cross plate 21 and the second cross plate 22 is set according to the diameter of the pipe fittings). Therefore, the second cross plate 22 restricts the pipe fittings except the lowest point. In the latter part of the return process of the driving arm 13, the first cross plate 21 then slides towards the outside of the box body 3. Thus, the lowest-point pipe fitting will fall onto the inclined plate 23 and then roll onto the two hooks 5 to complete the automatic replenishment of the pipe fittings.

[0079] It should be added that in order to prevent the pipe fittings from skewing during the rolling process on the inclined plate 23 towards the hook 5, retaining side strips 2301 are provided on both sides of the inclined plate 23, which can play a guiding and limiting role in the rolling of the pipe fittings. It should be noted that the length of the retaining side strip 2301 is greater than the length of the inclined plate 23, so as to ensure that when the pipe fittings roll onto the hook 5, the axial displacement difference can be avoided.

[0080] As another embodiment of the present invention, a method for loading a laser-cut pipe fitting is also proposed. Using the above-mentioned loading device, it includes the following steps:

[0081] Step 1: Place the pipe fitting to be cut into the box body 3;

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

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

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

[0085] Step 5: The automatic compensation mechanism resets, prompting the blanking control mechanism to replenish the pipe fittings to be cut on the two hooks 5.

[0086] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, in any regard, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed by the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0087] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A feeding device for laser cutting pipe fittings based on automatic continuous feeding, comprising a support (1), a box body (3) and an assembly plate (7) fixed on the support (1). A blanking control mechanism is arranged on the box body (3), and a plurality of groups of conveying wheel sets (26) for conveying pipe fittings to a laser cutting table are arranged on the assembly plate (7); It is characterized in that It further comprises: Hook (5), two hooks (5) are arranged on the support (1), and each of the two hooks (5) is connected with a set of lifting mechanisms arranged on the support (1). The lifting mechanism can drive the hook (5) to move in the vertical direction, and the blanking control mechanism can transfer the pipe fittings to the two hooks (5); Support seat (6), two support seats (6) are movably arranged on the assembly plate (7) for receiving the pipe fittings lifted by the hook (5). The two support seats (6) can be driven by a sliding mechanism arranged on the assembly plate (7) to move towards each other; Wherein, when the pipe fittings on the two support seats (6) are conveyed, the support seat (6) far from the conveying wheel set (26) can be driven by an automatic compensation mechanism arranged on the assembly plate (7) to move closer to the other support seat (6), and the automatic compensation mechanism can also prompt the blanking control mechanism to be triggered; Two guide posts (10) are fixed on the assembly plate (7) through two protruding blocks (9). The sliding mechanism comprises a first movable seat (14) and a second movable seat (15) slidably connected with 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 with the two groups of lifting mechanisms through a set of sliding fit components; Wherein, the two support seats (6) are respectively fixedly connected with the first movable seat (14) and the second movable seat (15). The outer peripheries of the guide posts (10) are sleeved with a first cylindrical spring (11) and a second cylindrical spring (12) whose first ends are both connected with the protruding blocks (9), and the second ends of the first cylindrical spring (11) and the second cylindrical spring (12) are respectively connected with the first movable seat (14) and the second movable seat (15).

2. The feeding device for laser cutting pipe fittings based on automatic continuous feeding according to claim 1, wherein, The lifting mechanism comprises a guide rail (2) fixed on the support (1) and an upright arm (4) slidably fitted in the guide rail (2). The hook (5) is fixed on the upright arm (4), and the upright arm (4) can be driven by an external driving member to slide in the guide rail (2) so that the hook (5) can move up and down.

3. The laser cutting pipe fitting loading device based on automated continuous feeding according to claim 2, characterized in that, The sliding fit assembly includes a follower plate (18) fixedly connected to the vertical arm (4) through a connecting arm (24), and an elastic telescopic member provided on the first movable seat (14). A connecting column (25) penetrating through the assembly plate (7) is fixed to a side of the first movable seat (14) away from the supporting seat (6). The elastic telescopic member includes a guiding cylinder (16) fixed to the connecting column (25) and a telescopic column (17) slidably sleeved with the guiding cylinder (16). A spring is provided in the guiding cylinder (16) and connected to the telescopic column (17), and a groove body adapted to the telescopic column (17) is provided on the follower plate (18). The telescopic column (17) extends into the groove body and is slidably connected to the follower plate (18).

4. The feeding device for laser cutting pipe fittings based on automatic continuous feeding according to claim 3, wherein The groove body includes a connected first vertical groove (1801), a horizontal groove (1802), a second vertical groove (1803), an inclined groove (1804), and a third vertical groove (1805). A hinge member (20) is rotatably provided on the follower plate (18). A torsion spring is connected to a rotating shaft of the hinge member (20), and the hinge member (20) is located at an end of the inclined groove (1804) away from the second vertical groove (1803). Wherein, a fourth vertical groove (1806) is further connected between the first vertical groove (1801) and the third vertical groove (1805), and an anti-misoperation structure is further provided on the follower plate (18). The anti-misoperation structure can urge the telescopic column (17) to move towards the inside of the guiding cylinder (16).

5. An automatic continuous feeding-based laser cutting pipe fitting loading device according to claim 4, characterized in that, The anti-misoperation structure includes a limiting track (19) fixed to 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).

6. The feeding device for laser cutting pipe fittings based on automatic continuous feeding according to claim 1, wherein, The automatic compensation mechanism includes a cross column (8) fixed to the assembly plate (7) and a driving arm (13) slidably provided on the cross column (8). The driving arm (13) cooperates with the first movable seat (14). The driving arm (13) is further connected to an external power mechanism, and a driving column (1301) is fixed to an end of the driving arm (13) away from the cross column (8). The driving column (1301) cooperates with the blanking control mechanism.

7. The feeding device for laser cutting pipe fittings based on automatic continuous feeding according to claim 6, characterized in that, Two strip-shaped through openings are provided on a side of the box body (3). The blanking control mechanism includes a first cross plate (21) and a second cross plate (22) respectively slidably provided in the two strip-shaped through openings. A first through groove and a second through groove are respectively provided on the first cross plate (21) and the second cross plate (22). Two ends of the driving column (1301) respectively penetrate through the first through groove and the second through groove and are slidably connected to the first cross plate (21) and the second cross plate (22). Wherein, an inclined plate (23) is further provided at the bottom of the box body (3), and the pipe fittings in the box body (3) can roll onto the two hanging hooks (5) through the inclined plate (23). The first through groove includes a connected first inclined groove (2101) and a first straight groove (2102), and the second through groove includes a connected second straight groove (2201) and a second inclined groove (2202).

8. A method for feeding pipe fittings in laser cutting, which uses the feeding device described in claim 1, and is characterized in that, It includes the following steps: Step 1: Place the pipe fittings to be cut into the box body (3); Step 2: The lifting mechanism drives the hanging hooks (5) to drive the pipe fittings to rise, and the two supporting seats (6) complete a reciprocating motion of moving away from and approaching each other, and the pipe fittings reach above the two supporting seats (6); Step 3: The lifting mechanism drives the hanging hooks (5) to drive the pipe fittings to descend, and the pipe fittings stay on the two supporting seats (6); Step 4: The conveying wheel set (26) works to convey the lifted pipe fittings, and the automatic compensation mechanism causes the distance between the two supporting seats (6) to shorten; Step 5: The automatic compensation mechanism resets, and the blanking control mechanism replenishes the pipe fittings to be cut onto the two hanging hooks (5).

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