Multi-stage pipe feeding machine

Abstract

The present invention discloses a multi-stage pipe feeding machine, which belongs to the field of feeding devices, and comprises a frame, on which a material receiving frame and multi-stage horizontally arranged material sorting frames are arranged. The pipes placed in the first-stage material sorting frame are transported step by step to the last-stage material sorting frame. The bottom of the last-stage material sorting frame is provided with a gathering part for gathering pipes, and a material lifting mechanism is provided to lift one end of one of the pipes at the gathering part upwards. A supporting member is provided on the frame. When one end of the pipe reaches a set final height, the supporting member is supported on the top of the pipe as a supporting base for the material lifting mechanism to lift the pipe upwards. A material sorting mechanism is provided to hook the lifted pipe upwards, and a driving mechanism is provided to drive the material sorting mechanism to move to the other end of the pipe so that both ends of the pipe are lifted. The material lifting mechanism and the material sorting mechanism put down the pipe to make the pipe fall. A guiding mechanism is provided between the material receiving frame and the last-stage material sorting frame, and the falling pipe rolls down into the material receiving frame along the guiding mechanism. The present invention can more smoothly transport the pipe to the material receiving frame.

Description

Technical Field

[0001] The invention relates to the field of feeding devices, in particular to a multi-stage pipe feeding machine. Background Art

[0002] Traditional deep processing machines for pipes (such as steel pipes), such as laser pipe cutting machines, generally use manual loading, which requires manual pushing for loading. The length of the pipes is generally long, and the manual handling of the pipes for loading is slow, which reduces the processing efficiency of the pipes. In addition, when the pipes carried by the workers are steel pipes with large diameters and heavy weights, it is more difficult for the workers to load the pipes, and two workers may be required to assist in loading. This undoubtedly increases the workload of the workers and increases the labor force, thereby increasing the processing cost.

[0003] For this reason, automatic feeders have appeared on the market. After arranging a pile of pipes, they are fed one by one to realize the process of automatic feeding of pipes. For example, a feeding device for a laser pipe cutting machine with the authorization announcement number CN209334957U includes a feeding rack, a first base and a second base. The feeding rack is located on one side of the first base, and the second base is located at one end of the first base; the feeding mechanism includes a slide plate, a first support and a push cylinder. The slide plate is driven by the push cylinder to realize the horizontal movement of the steel pipe, and the upward cylinder drives the clamp to realize the up and down movement, thereby realizing the automatic feeding operation of the steel pipe. In the structure of the feeding device described in the patent, when in use, a pile of steel pipes are placed on the feeding rack. When feeding, all the steel pipes roll downward, and the materials cannot be properly sorted, so that the feeding rack can only store fewer pipes, and the rolled down steel pipes will inevitably be interspersed and folded, and the steel pipes will appear uneven. If the steel pipes are tilted or tilted unevenly, the clamps on both sides will not be able to clamp both ends of the pipe at the same time for conveying and feeding, so that the machine cannot run and the feeding process is interrupted. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a multi-stage pipe feeding machine which can sort materials at multiple stages and can feed pipes one by one into a material receiving rack when the pipes are not in order.

[0005] The technical solution of the present invention is: a multi-stage pipe feeding machine, characterized in that it comprises a frame, the frame is provided with a material receiving frame and a multi-stage transversely arranged material sorting frame, the pipes placed in the first-stage material sorting frame are transported step by step to the last-stage material sorting frame, the bottom of the last-stage material sorting frame is provided with a gathering part for gathering the pipes, and a lifting mechanism is provided to lift one end of one of the pipes at the gathering part upward, the frame is provided with a lifting support, when one end of the pipe reaches a set final height, the lifting support is pressed above the pipe as a supporting base for the lifting mechanism to lift the pipe upward, a material sorting mechanism is provided to hook the lifted pipe upward, a driving mechanism is provided to drive the material sorting mechanism to move to the other end of the pipe so that both ends of the pipe are lifted, the lifting mechanism and the material sorting mechanism put down the pipe to make the pipe fall, a guide mechanism is provided between the material receiving frame and the last-stage material sorting frame, and the fallen pipe rolls along the guide mechanism into the material receiving frame.

[0006] The first-level material sorting rack has a material sorting space larger than that of other material sorting racks, and the pipes in the first-level material sorting rack are transported to the next-level material sorting rack in batches.

[0007] The ejection mechanism comprises an ejection member and a driving assembly. The ejection member is detachably connected to the driving assembly, and the driving assembly drives the ejection member to rise and fall.

[0008] The top of the lifting piece is provided with a groove, and the groove can only accommodate one pipe.

[0009] The material lifting mechanism lifts one end of the pipe upwards, and when the one end of the pipe reaches a set middle height, the material sorting mechanism knocks down other pipes stacked on the lifted pipe.

[0010] The material sorting mechanism includes a rotating material sorting piece and a pushing cylinder. The pushing cylinder is connected to a controller and is provided with a linkage piece, one end of which is rotationally connected to the cylinder body of the pushing cylinder, and the other end is rotationally connected to the rotating material sorting piece. The end of the rotating material sorting piece is rotationally connected to the piston rod of the pushing cylinder, and the pushing cylinder drives the rotating material sorting piece to reciprocate.

[0011] The lifting mechanism lifts one end of the pipe upwards, and when one end of the pipe reaches a set middle height, a knocking mechanism is provided to knock down other pipes stacked on the lifted pipe.

[0012] The number of the guide mechanism is at least two groups, and the guide mechanism includes an angle cylinder and a guide member. The top surface of the guide member is arranged obliquely downward, and the guide member is connected to the piston rod of the angle cylinder. The angle cylinder can drive the guide member to rotate so that the guide member rotates to the bottom of the pipe. The angle cylinder is connected to a controller.

[0013] The frame body is provided with a material shaking mechanism, which is located in the last-stage material sorting frame. The material shaking mechanism shakes the pipes in the last-stage material sorting frame to the gathering part at the bottom for gathering.

[0014] When the lifting mechanism moves upward, a sensor is provided to sense the lifting condition of the pipe on the lifting mechanism. The sensor is connected to the controller and can be used to monitor the residual material condition of the first material sorting rack.

[0015] Compared with the prior art, the advantages of the present invention are that a receiving rack and multi-level horizontally arranged material sorting racks are arranged on the frame body, and the pipes to be processed are placed in the first-level material sorting rack, and the pipes in the first-level material sorting rack are transported step by step to the last-level material sorting rack, and the pipes are automatically transported to the last-level material sorting rack, and the transport efficiency is high;

[0016] The bottom of the last-level material sorting rack is provided with a gathering part for gathering the pipes, and the pipes transported to the last-level material sorting rack are gathered toward the gathering part, which makes it convenient for the lifting mechanism to lift the pipes in the last-level material sorting rack, avoiding the problem that the pipes in the last-level material sorting rack cannot be lifted up during the feeding process; the lifting mechanism lifts one end of one of the pipes at the gathering part upwards, and a lifting support is provided on the frame body. When one end of the pipe reaches the set final height, the lifting support is pressed on the top of the pipe as a supporting basis for the lifting mechanism to lift the material upwards, a material sorting mechanism is provided to hook the lifted pipe upwards, and a driving mechanism is provided to drive the material sorting mechanism to move to the other end of the pipe so that both ends of the pipe are lifted, and the top mechanism and the material sorting mechanism put down the pipe to make the pipe fall, and a guiding mechanism is provided between the material receiving rack and the last-level material sorting rack, and the fallen pipe rolls down into the material receiving rack along the guiding mechanism. It is only necessary to first lift up one end of the pipe through the lifting mechanism, and the lifting support piece is placed on the top of the pipe lifted by the lifting mechanism to fix one end of the pipe, and then the other end of the lifted pipe is hooked and lifted up by the material sorting mechanism, and finally the pipe with both ends lifted up is sent to the receiving rack, which can avoid the problem that the two ends of the pipe cannot be lifted up at the same time when the pipes are stacked and staggered unevenly, so that the pipes can be transported to the receiving rack one by one in a more orderly manner, and the feeding process is smoother, avoiding the problem that the machine is stuck and cannot run due to the pipes being interlaced and folded during the transportation process;

[0017] The entire process of material sorting and feeding is completed automatically, and the conveying efficiency is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments, but those skilled in the art will appreciate that these drawings are only drawn for the purpose of illustrating the background technology and explaining the preferred embodiments, and therefore should not be used as a limitation on the scope of the present invention. In addition, unless otherwise specified, the drawings are only schematically representing the composition or structure of the described object and may contain exaggerated displays, and the drawings are not necessarily drawn to scale.

[0019] Figure 1 It is a schematic diagram of the whole invention.

[0020] Figure 2 This is the status diagram of the first-level material sorting rack feeding materials to the next-level material sorting rack.

[0021] Figure 3 This is the status diagram of the secondary material sorting rack feeding materials to the tertiary material sorting rack.

[0022] Figure 4 This is the state diagram when both ends of the pipe are lifted.

[0023] Figure 5 This is a status diagram when feeding materials into the receiving rack.

[0024] Figure 6 for Figure 1 A partial enlarged view of point A.

[0025] Figure 7 for Figure 1 A partial enlarged view of point B.

[0026] Figure 8 for Figure 1 A partial enlarged view of point C.

[0027] Fig. 9 This is a partial enlarged view of the material receiving rack.

[0028] Fig.10 It is a structural schematic diagram of the material receiving rack.

[0029] Fig.11 This is a partial schematic diagram of the last-level material sorting rack.

[0030] Fig.12 This is a partial schematic diagram of the last-level material sorting rack.

[0031] Fig.13 This is a process diagram for feeding materials into the receiving rack.

[0032] In the figure: 1, frame; 2, first-level material sorting rack; 3, second-level material sorting rack; 4, third-level material sorting rack; 5, material receiving rack; 6, support member; 7, material blocking member; 8, pipe; 9, first connecting member; 10, first driving mechanism; 11, feeding member; 12, second connecting member; 13, feeding cylinder; 14, gathering part; 15, hand-rotating wheel; 16, rotating material sorting member; 17, first pushing cylinder; 18, linkage member; 19, material sorting roller; 20, material sorting trough; 21, material lifting mechanism; 22, lifting support member; 23, horizontal plate; 24, linkage rod; 25, chain; 26, chain track; 27, guiding mechanism; 28, material guide member; 29, inclined baffle; 30, third driving mechanism; 31, third driving motor; 32, second active pulley; 33, second belt; 34, sixth proximity switch; 35, first driving motor; 36, screw rod lifting lowering machine; 37, connecting shaft; 38, second driven pulley; 39, second connecting block; 40, second slider; 41, second slide rail; 42, guide member; 43, angle cylinder; 44, receiving plate; 45, receiving trough; 46, fixed plate; 47, guide groove; 48, slide plate; 49, rotating shaft; 50, movable hole; 51, adjusting wheel; 52, limiting long groove; 53, through hole; 54, rotating bearing; 55, first proximity switch; 56, second proximity switch; 57, rotating material shaking member; 58, rotating fulcrum; 59, second pushing cylinder; 60, second driving motor; 61, first active pulley; 62, first belt; 63, first driven pulley; 64, first slider; 65, first connecting block; 66, first slide rail; 67, fifth proximity switch; 68, lifting member; 69, groove; 70, fourth proximity switch. DETAILED DESCRIPTION

[0033] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It will be appreciated by those skilled in the art that these descriptions are only illustrative and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0034] It should be noted that like reference numerals denote similar items in the following drawings, and thus, once an item is defined in one drawing, it may not be further defined or explained in subsequent drawings.

[0035] In the description of the present invention, it should be noted that the terms "inside", "outside", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0036] The present invention comprises a frame body 1, on which a material receiving frame 5 and a multi-level laterally arranged material sorting frame are arranged.

[0037] Figure 1-Figure 13 As shown, the first-level material sorting rack 2 has a material sorting space larger than that of other material sorting racks, and the pipes 8 placed in the first-level material sorting rack 2 are transported step by step to the last-level material sorting rack.

[0038] Figure 2-Figure 5 As shown, the primary material sorting rack 2 includes a support member 6 arranged obliquely downward and a material blocking member 7 that can be raised and lowered, and is provided with a first driving mechanism 10 for driving the material blocking member 7 to rise and fall. When the first driving mechanism 10 drives the material blocking member 7 to rise upward, the material blocking member 7, the support member 6 and the frame body 1 are combined to form a space for placing pipes 8. A large number of pipes 8 to be processed are placed on the support member 6, and the upwardly raised material blocking member 7 can prevent the pipes 8 placed on the support member 6 from rolling out of the primary material sorting rack 2.

[0039] Preferably, Figure 1 As shown, the support member 6 is a plurality of support rods arranged side by side and obliquely downward, with a spacing between the support rods, and the support rods are fixed on the frame 1. The material stopper 7 is a vertically arranged rod body, and the number of the material stopper 7 is at least two. Each of the material stoppers 7 is arranged between adjacent support rods, and the top surface of the material stopper 7 has the same slope as the support member 6.

[0040] Figure 4 As shown, the first driving mechanism 10 includes a first driving motor 35 and a screw lift 36, the first driving motor 35 and the screw lift 36 are both fixedly connected to the frame 1, the output shaft of the first driving motor 35 is fixedly connected to the worm of the screw lift 36, and the material blocking member 7 is fixed at the top end of the screw of the screw lift 36. Preferably, there are two screw lifts 36, which are arranged at intervals. The worms of the two screw lifts 36 are fixedly connected by a connecting shaft 37. The output shaft of the first drive motor 35 is fixedly connected to the worm of one of the screw lifts 36. A first connecting member 9 is fixed to the top of the screws of the two screw lifts 36. The material blocking member 7 is fixedly connected to the first connecting member 9. When the output shaft of the first drive motor 35 drives the worm of one of the screw lifts 36 to rotate, the rotating worm drives the worm of the other screw lift 36 to rotate through the connecting shaft 37. The rotation of the two worms causes the screws of the two screw lifts 36 to rise or fall synchronously, so that the first connecting member 9 drives the material blocking member 7 to rise or fall. The first drive motor 35 controls the rising or falling of the material blocking member 7 by driving the output shaft to rotate forward or reverse.

[0041] The screw lift 36 is a transmission device currently available on the market, such as a screw lift of model SWLD and brand FIBO; the first drive motor 35 is a servo motor, and the first drive motor 35 is connected to a controller.

[0042] Preferably, the frame body 1 is provided with three levels of transversely arranged material sorting racks, including the above-mentioned first-level material sorting rack 2, second-level material sorting rack 3 and third-level material sorting rack 4, the second-level material sorting rack 3 is located in the middle of the first-level material sorting rack 2 and the third-level material sorting rack 4, and the first driving motor 35 controls the material blocking member 7 to descend, so that the pipe 8 placed on the upper part of the first-level material sorting rack 2 is higher than the top surface of the material blocking member 7, and the pipe 8 located on the upper part rolls from above the material blocking member 7 into the second-level material sorting rack 3.

[0043] Figure 2 , Figure 3 As shown, at least two lifting feeding pieces 11 are provided below the secondary material sorting rack 3, and a second driving mechanism is provided to drive the feeding pieces 11 to lift and lower. Further, the second driving mechanism includes at least two feeding cylinders 13, and a second connecting piece 12 is provided to be fixedly connected to the piston rods of all the feeding cylinders 13. The feeding piece 11 is fixed on the second connecting piece 12, and the feeding piece 11 is a vertically arranged support plate. When the piston rod of the feeding cylinder 13 extends out to drive the second connecting piece 12 to rise upward, the second connecting piece 12 drives the feeding piece 11 to rise upward, and the feeding piece 11 rises upward and extends into the secondary material sorting rack 3 to lift the pipe 8 placed in the secondary material sorting rack 3. Since the top surface of the feeding piece 11 is arranged obliquely downward, preferably, the top of the feeding piece 11 is fixedly connected with a guide plate, and the guide plate is arranged obliquely downward. The lifted pipe 8 rolls along the guide plate on the top of the feeding piece 11 into the tertiary material sorting rack 4.

[0044] The feeding cylinder 13 is connected to the controller, and the feeding cylinder 13 is fixed on the frame 1 .

[0045] Preferably, the width of the secondary material sorting rack 3 is equal to the width of the feeding piece 11 , so that the feeding piece 11 can be raised upward to lift all the pipes 8 in the secondary material sorting rack 3 .

[0046] Figure 4 As shown, the three-stage material sorting rack 4 is the last stage material sorting rack mentioned above, and a gathering portion 14 for gathering the pipes 8 is provided at the bottom of the three-stage material sorting rack 4. Preferably, the three-stage material sorting rack 4 is a V-shaped material sorting rack, and the pipes 8 that roll into the three-stage material sorting rack 4 will be gathered on the gathering portion 14 in the middle of the three-stage material sorting rack 4.

[0047] Preferably, Fig.11As shown, a first proximity switch 55 is provided below the three-stage material sorting rack 4, the first proximity switch 55 is fixed on the rack body 1, the first proximity switch 55 is connected to the controller, the sensing end of the first proximity switch 55 faces the lowest point of the three-stage material sorting rack 4, and the first proximity switch 55 is used to monitor whether there is any excess material in the three-stage material sorting rack 4. Since a gathering portion 14 is provided at the bottom of the three-stage material sorting rack 4, the pipes 8 in the three-stage material sorting rack 4 will all gather to the lowest point of the three-stage material sorting rack 4, so that the first proximity switch 55 can accurately sense the remaining pipes 8 in the three-stage material sorting rack 4. When the pipes 8 in the three-stage material sorting rack 4 are used up, the first proximity switch 55 is disconnected from the sensing of the pipes 8 in the three-stage material sorting rack 4, and the first proximity switch 55 feeds back an electrical signal to the controller, and the controller controls the feeding member 11 to rise to transport the pipes 8 in the two-stage material sorting rack 3 to the three-stage material sorting rack 4.

[0048] Preferably, Figure 6 As shown, a second proximity switch 56 is fixed on the frame 1, and the second proximity switch 56 is connected to the controller. The sensing end of the second proximity switch 56 faces the top of the secondary material sorting rack 3. When the feeding member 11 rises to transport the pipe 8 in the secondary material sorting rack 3 to the tertiary material sorting rack 4, the pipe 8 passes over the sensing end of the second proximity switch 56, and the second proximity switch 56 senses that the pipe 8 in the secondary material sorting rack 3 is transported to the tertiary material sorting rack 4, and the second proximity switch 56 feeds back an electrical signal to the controller.

[0049] When the pipes 8 in the secondary sorting rack 3 are transported to the tertiary sorting rack 4, the controller controls the feeding member 11 to descend to the initial position to prepare for the next feeding, and the controller controls the blocking member 7 to descend, so that the pipes 8 in the primary sorting rack 2 roll down to the secondary 3 sorting rack.

[0050] The pipes 8 in the first-level material sorting rack 2 are transported to the material sorting rack of the next level in batches. Preferably, the first driving mechanism 10 drives the material stopper 7 to descend for multiple times, and each time the material stopper 7 descends, the first-level material sorting rack 2 transports a portion of the pipes 8 to the material sorting rack of the next level. For example, when discharging materials, the material stopper 7 is raised to a position where the top of the material stopper 7 is 650 cm away from the support, and the pipes 8 to be processed are placed in the first-level material sorting rack 2 composed of the material stopper 7, the support 6 and the frame 1. By setting in the controller that the second-level material sorting rack 3 transports a pipe 8 to the third-level material sorting rack 4 once, the controller controls the material stopper 7 to descend by 10 cm. Each time the material stopper 7 descends by 10 cm, a portion of the pipes 8 located above in the first-level material sorting rack 2 can fall into the second-level material sorting rack 3 due to the descent of the material stopper 7, thereby realizing that each time the second-level material sorting rack 3 transports a pipe 8 to the third-level material sorting rack 4, the first-level material sorting rack 2 replenishes the second-level material sorting rack 3 with a pipe 8. With this conveying structure, workers can first place a large number of pipes 8 into the primary material sorting rack 2, and the primary material sorting rack 2 will convey the pipes 8 to the secondary material sorting rack 3 in batches according to the usage of the pipes 8, thereby avoiding the problem of workers frequently adding materials to the material sorting rack and improving the processing efficiency of subsequent deep processing machines.

[0051] Preferably, a third proximity switch is provided under the first-level material sorting rack 2, and the third proximity switch is fixed on the rack body 1. The third proximity switch is connected to the controller, and the third proximity switch is used to control the lowest descending position of the material blocking member 7. Preferably, a metal sheet is provided on the material blocking member 7. When the material blocking member 7 descends to the point where the top surface of the material blocking member 7 is flush with the top surface of the support member 6, or the top surface of the material blocking member 7 is slightly lower than the top surface of the support member 6, the metal sheet moves to the front of the sensing end of the third proximity switch, and the third proximity switch feeds back electrical information to the controller, and the controller controls the first drive motor 35 to stop driving the output shaft to rotate, so that the material blocking member 7 stops descending.

[0052] Fig.11 , Fig.12As shown, the frame 1 is provided with a jacking mechanism 21, and further, the jacking mechanism 21 includes a jacking piece 68 and a driving assembly, the jacking piece 68 is detachably connected to the driving assembly, and the driving assembly drives the jacking piece 68 to rise and fall. Preferably, the driving assembly includes a first active pulley 61, a first driven pulley 63, and a second driving motor 60 that drives the first active pulley 61 to rotate, the first active pulley 61, the first driven pulley 63 and the second driving motor 60 are all fixed on the frame 1, the first active pulley 61 is connected to the output shaft of the second driving motor 60, the first active pulley 61 and the first driven pulley 63 are connected through a first belt 62, the first belt 62 is fixedly connected to a first connecting block 65, the frame 1 is provided with a first slide rail 66, and a first A slider 64 is restricted to slide up and down along the vertical direction on the first slide rail 66, and the first connecting block 65 is fixedly connected to the first slider 64. The first slider 64 can make the first connecting block 65 rise and fall more smoothly. The first slider 64 is fixedly connected to a vertical rod, and the lifting piece 68 is detachably connected to the vertical rod. Preferably, the lifting piece 68 is detachably fixedly connected to the vertical rod by screws. When the second drive motor 60 drives the first active pulley 61 to rotate, the first active pulley 61 drives the first driven pulley 63 to rotate through the first belt 62, and the first belt 62 drives the first connecting block 65 to rise and fall, thereby making the first slider 64 slide up and down, and the first slider 64 drives the lifting piece 68 to rise and fall through the vertical rod, and the second drive motor 60 controls the lifting of the lifting piece 68 by driving the output shaft to rotate forward or reverse.

[0053] The second driving motor 60 is a servo motor, and the second driving motor 60 is connected to a controller.

[0054] Preferably, a groove 69 is provided on the top of the lifting member 68, and the groove 69 can only accommodate one pipe 8. The lifting member 68 is detachably connected to the vertical rod in order to adapt to pipes 8 of different sizes and thicknesses.

[0055] The lifting piece 68 is located in the middle of one end of the three-stage material sorting rack 4, and the lifting piece 68 is opposite to the gathering part 14, and the receiving rack 5 is located on one side of the three-stage material sorting rack 4. When the pipes 8 in the three-stage material sorting rack 4 need to be transported to the receiving rack 5 one by one, the lifting piece 68 rises upward, and one end of one of the pipes 8 located at the gathering part 14 falls into the groove 69 of the lifting piece 68, and the lifting piece 68 lifts one end of the pipe 8 upward. A supporting piece 22 is provided on the frame body 1. When one end of the pipe 8 reaches the set final height, the supporting piece 22 is supported on the top of the pipe 8 as a supporting base for the lifting mechanism 21 to push the material upward. The lifting piece 68 and the supporting piece 22 are respectively supported on the upper and lower sides of the pipe 8, so that one end of the pipe 8 is fixed, so that the pipe 8 will not slide during the lifting process, and the lifted pipe 8 is more stable.

[0056] Figure 4 As shown, a material sorting mechanism is provided to hook up the lifted pipe 8. Further, the material sorting mechanism includes a rotating material sorting piece 16 and a first pushing cylinder 17. The first pushing cylinder 17 is connected to the controller and is provided with a linkage piece 18, one end of which is rotatably connected to the cylinder body of the first pushing cylinder 17, and the other end is rotatably connected to the rotating material sorting piece 16. The end of the rotating material sorting piece 16 is rotatably connected to the piston rod of the first pushing cylinder 17. The first pushing cylinder 17 drives the rotating material sorting piece 16 to reciprocate. The first pushing cylinder 17 drives the rotating material sorting piece 16 to reciprocate by contracting and extending the piston rod.

[0057] Figure 6 , Figure 8 As shown, the first pushing cylinder 17 is fixedly connected to the third driving mechanism 30. Preferably, the third driving mechanism 30 includes a second driving pulley 32, a second driven pulley 38, and a third driving motor 31 for driving the second driving pulley 32 to rotate. The second driving pulley 32, the second driven pulley 38 and the third driving motor 31 are all fixed on the frame 1. The second driving pulley 32 is fixedly connected to the output shaft of the third driving motor 31. The second driving pulley 32 and the second driven pulley 38 are connected by a second belt 33. A second connecting block 39 is fixedly connected to the second belt 33. When the third driving motor 31 drives the second driving pulley 32 to rotate, the second driving pulley 32 drives the second driven pulley 38 to rotate through the second belt 33. The second belt 33 drives the second connecting block 39 to reciprocate horizontally. The third driving motor 31 controls the horizontal reciprocating movement of the second connecting block 39 by driving the output shaft to rotate forward or reverse.

[0058] The third driving motor 31 is a servo motor, and the third driving motor 31 is connected to a controller.

[0059] Figure 8 As shown, the second connecting block 39 is fixedly connected with a second slider 40, the frame 1 is provided with a second slide rail 41, the second slider 40 is restricted to reciprocate horizontally on the second slide rail 41, the second slider 40 is fixedly connected with a transverse plate 23, the first push cylinder 17 is fixedly connected to the transverse plate 23, the second connecting block 39 drives the second slider 40 to move on the second slide rail 41 when reciprocating horizontally, and the second slider 40 drives the first push cylinder 17 to reciprocate horizontally synchronously through the transverse plate 23. The second slider 40 can make the second connecting block 39 reciprocate horizontally more smoothly.

[0060] When one end of the pipe 8 is lifted up to the set final height by the lifting member 68, the controller controls the first pushing cylinder 17 to drive the rotating material sorting member 16 to rotate, and the rotating material sorting member 16 rotates to the bottom of the lifted pipe 8 and the rotating material sorting member 16 hooks the tube body of the pipe 8 upwards, and the third driving mechanism 30 drives the material sorting mechanism to move to the other end of the pipe 8 so that the rotating material sorting member 16 lifts the other end of the pipe 8 upwards, and both ends of the pipe 8 are lifted.

[0061] Figure 5 As shown, when the lifting mechanism 21 and the material sorting mechanism lower the pipe 8 to make the pipe 8 fall, specifically, while the controller controls the lifting member 68 to descend, the first push cylinder 17 drives the rotating material sorting member 16 to rotate out from the bottom of the pipe 8, so that the bottom of the pipe 8 loses the supporting force, and the pipe 8 falls. A guide mechanism 27 is provided between the receiving rack 5 and the third-level material sorting rack 4, and the falling pipe 8 rolls down into the receiving rack 5 along the guide mechanism 27.

[0062] Figure 8 As shown, the number of the guide mechanism 27 is at least two groups, and the guide mechanism 27 includes an angle cylinder 43 and a guide member 42. The top surface of the guide member 42 is set obliquely downward, and the guide member 42 is connected to the piston rod of the angle cylinder 43. The angle cylinder 43 drives the guide member 42 to rotate, so that the guide member 42 rotates to the bottom of the pipe 8, and the falling pipe 8 falls on the top surface of the guide member 42, and the falling pipe 8 slides along the top surface of the guide member 42 into the material receiving rack 5.

[0063] The angle cylinder 43 is fixed on the frame 1 , and the angle cylinder 43 is connected to a controller.

[0064] Preferably, the frame body 1 is provided with a plurality of guide members 28, and the top of the guide member 28 is provided with a guide slope, and the pipe 8 sliding down along the top surface of the guide member 42 passes through the guide slope on the guide member 28 and then falls into the receiving rack 5. Since the top surface of the guide member 42 and the guide slope on the guide member 28 are both higher than the receiving rack 5, the pipe 8 has a certain speed during the rolling process, so that the pipe 8 can fall into the receiving rack 5 normally.

[0065] Preferably, a material sorting roller 19 is sleeved on the rotating material sorting member 16, and a bearing is provided between the material sorting roller 19 and the rotating material sorting member 16. A material sorting trough 20 is provided in the middle of the material sorting roller 19. When the rotating material sorting member 16 rotates to hook the tube 8 upward, the tube body of the tube 8 falls into the material sorting trough 20. When the third driving mechanism 30 drives the material sorting mechanism to move to the other end of the tube 8, the material sorting trough 20 has the function of correcting the position of the tube 8 to prevent the tube 8 from falling obliquely on the guide member 42. The bearing reduces the friction when the material sorting roller 19 rolls against the tube 8.

[0066] Preferably, a bent linkage rod 24 is fixedly connected to the transverse plate 23, and the free end of the linkage rod 24 is fixedly connected to one end of a chain 25. A chain track 26 is provided on the frame 1, and the chain 25 is partially placed in the chain track 26. The extension direction of the chain track 26 is parallel to the direction in which the third driving mechanism 30 drives the material sorting mechanism to move. When the third driving mechanism 30 drives the material sorting mechanism to move in a direction away from the lifting member 68, the linkage rod 24 pushes the chain 25 located outside the chain track 26 back into the chain track 26. When the third driving mechanism 30 drives the material sorting mechanism to move in a direction close to the lifting member 68, the linkage rod 24 pulls the chain 25 in the chain track 26 out of the chain track 26. The matching structure of the chain 25 and the chain track 26 can make the transverse plate 23 drive the material sorting mechanism to move more stably, avoiding the problem of shaking during the movement due to the excessive extension of the transverse plate 23.

[0067] Preferably, a slanted baffle 29 is provided on the side of the material receiving rack 5 away from the third-level material sorting rack 4, one end of the slanted baffle 29 is provided with a vertical portion, and the vertical portion is fixedly connected to the frame body 1, and the other end of the slanted baffle 29 is against the side of the material receiving rack 5. The slanted baffle 29 can prevent the pipe 8 that slides into the material receiving rack 5 along the guide member 42 from escaping from the material receiving rack 5.

[0068] In order to prevent other pipes 8 from being stacked on the pipe 8 when the lifting member 68 lifts one end of the pipe 8 upward, the present invention has multiple ways to knock the stacked pipes 8 back into the three-stage material sorting rack 4, effectively avoiding the problem of two pipes 8 being stacked, for example:

[0069] The first method: the material-lifting mechanism 21 lifts one end of the tube 8 upwards, and when one end of the tube 8 reaches the set middle height, the material-sorting mechanism knocks down the other tubes 8 stacked on the lifted tube 8. Specifically, when the tube 8 reaches the set middle height, the first push cylinder 17 drives the rotating material-sorting member 16 to rotate back and forth. Since the tube 8 has not yet reached the set final height, the rotation path of the rotating material-sorting member 16 is located above the lifted tube 8. Preferably, the rotation path of the rotating material-sorting member 16 is close to the tube 8 to be lifted. When the rotating material-sorting member 16 rotates back and forth, it knocks down the other tubes 8 stacked above the tube 8 to be lifted, so that the other tubes 8 fall back into the three-stage material-sorting rack 4.

[0070] In the second mode, the material-lifting mechanism 21 lifts one end of the pipe 8 upward, and when one end of the pipe 8 reaches the set middle height, a material-beating mechanism is provided to knock down other pipes 8 stacked on the lifted pipe 8. Preferably, the material-beating mechanism has the same structure as the above-mentioned material-sorting mechanism, and the material-beating mechanism and the material-sorting mechanism are fixed side by side on the horizontal plate 23. The method by which the material-beating mechanism knocks down other pipes 8 stacked above the pipe 8 to be lifted is the same as the material-sorting mechanism in the first mode, and this mode will not be elaborated in detail.

[0071] Figure 5 As shown, in the process of conveying the pipe 8 in the three-level material sorting rack 4 to the material receiving rack 5, the lifting member 68 needs to first lift one end of the pipe 8 to the set middle height. At the set middle height, the lifting member 68 pauses. After the rotating material sorting member 16 in the first method rotates back and forth a set number of times, the lifting member 68 continues to lift one end of the pipe 8 upward to the set final height. The rotating material sorting member 16 rotates to hook the pipe 8 upward. For example, the set middle height is 10 cm, the set final height is 30 cm, and the rotating material sorting member 16 reciprocates four times to hit the material.

[0072] Fig.11As shown, the frame 1 is provided with a material shaking mechanism, which is located in the last level of the material sorting rack. The material shaking mechanism shakes the pipes 8 in the last level of the material sorting rack to the gathering part 14 at the bottom and gathers them. Preferably, the material shaking mechanism includes a rotating material shaking member 57 and a second pushing cylinder 59, which is connected to the controller. The rotating material shaking member 57 is provided with a rotating fulcrum 58, which is rotatably connected to the frame 1. The piston rod of the second pushing cylinder 59 is rotatably connected to the rotating material shaking member 57. The second pushing cylinder 59 drives the rotating material shaking member 57 to reciprocate around the rotating fulcrum 58. The rotating material shaking member 57 rotates and knocks the pipes 8 dispersed in the last level of the material sorting rack, so that the pipes 8 can be gathered at the gathering part 14 of the last level of the material sorting rack, so that the lifting mechanism 21 can lift one end of the pipe 8 in the last level of the material sorting rack. The second pushing cylinder 59 is fixed on the frame.

[0073] Fig. 9 , Fig.10 As shown, the height of the material receiving frame 5 can be adjusted by lifting and lowering. The material receiving frame 5 includes a plurality of material receiving plates 44, and the material receiving plates 44 are provided with a concave material receiving groove 45. Each material receiving plate 44 is connected to a lifting mechanism, and the lifting mechanism includes a fixed plate 46, and the fixed plate 46 is fixed on the frame body 1. Guide grooves 47 are provided on both sides of the fixed plate 46, and a slide plate 48 is provided to be stuck in the guide grooves 47 on both sides and slide up and down along the guide grooves 47. A through hole 53 is provided on the fixed plate 46, and a rotating bearing 54 is tightly stuck in the through hole 53. The through hole 53 is connected to the outer ring of the rotating bearing 54, and a rotating shaft 49 is provided to pass through all the rotating bearings 54. The rotating shaft 49 is connected to the inner ring of the rotating bearing 54, and a movable hole 50 is provided on the slide plate 48. An adjusting wheel 51 is provided in the movable hole 50, and the adjusting wheel 51 is detachably fixed on the rotating shaft 49. Preferably, the adjusting wheel 51 is fixedly connected to the rotating shaft 49 by inserting a screw from the side. The axis of the rotating shaft 49 is eccentrically arranged with the center of the circle of the adjusting wheel 51. The adjusting wheel 51 is driven to rotate eccentrically by rotating the rotating shaft 49, and the adjusting wheel 51 can push the slide plate 48 to slide up and down in the guide groove 47 of the fixed plate 46. The receiving plate 44 is fixedly connected to the slide plate 48, and the slide plate 48 slides up and down to drive the receiving plate 44 to rise and fall.

[0074] The height adjustment of the receiving rack 5 facilitates the subsequent transportation of the pipe 8 to the processing machine for processing.

[0075] Preferably, the slide plate 48 is provided with a limiting long groove 52, and the limiting long groove 52 is vertically arranged. A limiting bolt is provided to pass through the limiting long groove 52 and fixedly connected to the fixing plate 46. The limiting bolt inserted into the limiting long groove 52 can limit the movement of the slide plate 48 in the vertical direction, and can also limit the slide plate 48 from escaping from the guide groove 47.

[0076] Preferably, a hand-rotating wheel 15 is provided on one side of the rotating shaft 49 for being rotated by hand, and the hand-rotating wheel 15 drives the rotating shaft 49 to rotate.

[0077] Preferably, the width of the movable hole 50 is equal to the diameter of the adjusting wheel 51 , and there is a movable gap between the left and right sides of the movable hole 50 and the adjusting wheel 51 .

[0078] Preferably, when the lifting mechanism 21 moves upward, a sensor is provided to sense the lifting condition of the pipe 8 on the lifting mechanism 21, and the sensor is a fourth proximity switch 70, which is fixed on the frame 1, and is located above the lifting member 68. The sensing end of the fourth proximity switch 70 is arranged downward, and the fourth proximity switch 70 is connected to the controller, and the lifting condition of the pipe 8 on the lifting mechanism 21 is sensed by the sensor to control the start of the material handling mechanism. When the lifting member 68 rises to the set final height, if the fourth proximity switch 70 senses and generates an electrical signal, it means that there is a pipe 8 in the groove 69 of the lifting member 68, and the fourth proximity switch 70 feeds back the sensed electrical signal to the controller, and the controller controls the handling mechanism. The material mechanism is started to hook up the pipe 8. If the fourth proximity switch 70 does not sense a signal, it means that the lifting member 68 has not lifted the pipe 8, and the material sorting mechanism is not started. The controller controls the lifting member 68 to continue to lift and reciprocate. When the fourth proximity switch 70 still does not sense a signal after the set number of reciprocating lifts, the controller reminds that there is no pipe 8 in the first-level material sorting rack 2, because within the set number of times, when the lifting member 68 is raised upward, the lifting member 68 has not been able to lift the pipe 8, indicating that there is no pipe 8 in the third-level material sorting rack 4, and no pipe 8 is transported to the third-level material sorting rack 4, indicating that there is no pipe 8 in the first-level material sorting rack 2, and a worker is needed to add pipe 8, so that the fourth proximity switch 70 can also be used to monitor the remaining material situation of the first material sorting rack.

[0079] Preferably, a fifth proximity switch 67 is fixedly provided on the frame 1, and the fifth proximity switch 67 is connected to the controller. The fifth proximity switch 67 has two, and the two fifth proximity switches 67 are arranged up and down. The sensing ends of the two fifth proximity switches 67 face the active area of ​​the first slider 64, and the two fifth proximity switches 67 are used to limit the highest position and the lowest position of the lifting of the first slider 64. When the first slider 64 is lifted upward to the sensing range of the fifth proximity switch 67 located above, the sensing end of the fifth proximity switch 67 located above faces the first slider 64, and the fifth proximity switch 67 located above feeds back an electrical signal to the controller, and the controller controls the second drive motor 60 to stop running; when the first slider 64 is lowered downward to the sensing range of the fifth proximity switch 67 located below, the sensing end of the fifth proximity switch 67 located below faces the first slider 64, and the fifth proximity switch 67 located below feeds back an electrical signal to the controller, and the controller controls the second drive motor 60 to stop running.

[0080] Preferably, a sixth proximity switch 34 is fixedly provided on the frame 1, and the sixth proximity switch 34 is connected to the controller. The sixth proximity switch 34 has two, and the two sixth proximity switches 34 are arranged front and back. The sensing ends of the two sixth proximity switches 34 face the active area of ​​the second connecting block 39, and the two sixth proximity switches 34 are used to locate the initial position and the protection position of the second connecting block 39. The second connecting block 39 moves forward to the sensing range of the sixth proximity switch 34 located in the front, and the sensing end of the sixth proximity switch 34 located in the front faces the second connecting block 39. At this time, the second connecting block 39 is in the protection position. , the second connecting block 39 can no longer move forward, the sixth proximity switch 34 located in the front feeds back an electrical signal to the controller, and the controller controls the third drive motor 31 to stop running; when the second connecting block 39 moves backward to the sensing range of the sixth proximity switch 34 located at the rear, the sensing end of the sixth proximity switch 34 located at the rear is facing the second connecting block 39. At this time, the second connecting block 39 is in the initial position, and the sixth proximity switch 34 located at the rear feeds back an electrical signal to the controller, and the controller controls the third drive motor 31 to stop running, and the second connecting block 39 prepares for the next material sorting mechanism to move to the other end of the pipe 8.

[0081] Preferably, the controller is a PLC control module currently available on the market.

[0082] The above is a detailed introduction to the multi-stage pipe feeding machine provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the present invention and its core ideas. It should be pointed out that for ordinary technicians in this technical field, the present invention can also be improved and modified without departing from the principles of the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. Multi-stage pipe feeding machine, It is characterized in that The utility model comprises a frame body, on which a material receiving frame and multi-stage material sorting frames arranged laterally are provided. The pipes placed in the first-stage material sorting frame are conveyed step by step to the last-stage material sorting frame. A gathering part for gathering the pipes is provided at the bottom of the last-stage material sorting frame. A material lifting mechanism is provided to lift one end of one of the pipes at the gathering part upward. A supporting member is provided on the frame body. When one end of the pipe reaches a set final height, the supporting member is supported on the top of the pipe as a supporting base for the material lifting mechanism to lift the pipe upward. A material sorting mechanism is provided to hook the lifted pipe upward. A driving mechanism is provided to drive the material sorting mechanism to move to the other end of the pipe so that both ends of the pipe are lifted. The material lifting mechanism and the material sorting mechanism put down the pipe to make the pipe fall. A guiding mechanism is provided between the material receiving frame and the last-stage material sorting frame. The fallen pipe rolls down into the material receiving frame along the guiding mechanism. The first-level material sorting rack has a material sorting space larger than that of other material sorting racks. The pipes in the first-level material sorting rack are transported to the next-level material sorting rack in batches. The frame body is provided with a material shaking mechanism, which is located in the last-stage material sorting frame. The material shaking mechanism shakes the pipes in the last-stage material sorting frame to the gathering part at the bottom for gathering.

2. The multi-stage pipe feeding machine according to claim 1, It is characterized in that The ejecting mechanism comprises an ejecting member and a driving assembly. The ejecting member is detachably connected to the driving assembly, and the driving assembly drives the ejecting member to rise and fall.

3. The multi-stage pipe feeding machine according to claim 2, It is characterized in that The top of the lifting piece is provided with a groove, and the groove can only accommodate one pipe.

4. The multi-stage pipe feeding machine according to claim 1, It is characterized in that The material lifting mechanism lifts one end of the pipe upwards, and when the one end of the pipe reaches a set middle height, the material sorting mechanism knocks down other pipes stacked on the lifted pipe.

5. The multi-stage pipe feeding machine according to claim 1 or 4, It is characterized in that The material sorting mechanism includes a rotating material sorting piece and a pushing cylinder. The pushing cylinder is connected to a controller and is provided with a linkage piece, one end of which is rotationally connected to the cylinder body of the pushing cylinder, and the other end is rotationally connected to the rotating material sorting piece. The end of the rotating material sorting piece is rotationally connected to the piston rod of the pushing cylinder, and the pushing cylinder drives the rotating material sorting piece to reciprocate.

6. The multi-stage pipe feeding machine according to claim 1, It is characterized in that The lifting mechanism lifts one end of the pipe upwards, and when one end of the pipe reaches a set middle height, a knocking mechanism is provided to knock down other pipes stacked on the lifted pipe.

7. The multi-stage pipe feeding machine according to claim 1, It is characterized in that The number of the guide mechanism is at least two groups, and the guide mechanism includes an angle cylinder and a guide member. The top surface of the guide member is arranged obliquely downward, and the guide member is connected to the piston rod of the angle cylinder. The angle cylinder can drive the guide member to rotate so that the guide member rotates to the bottom of the pipe. The angle cylinder is connected to a controller.

8. The multi-stage pipe feeding machine according to claim 1, It is characterized in that When the lifting mechanism moves upward, a sensor is provided to sense the lifting condition of the pipe on the lifting mechanism. The sensor is connected to the controller and can be used to monitor the residual material condition of the first material sorting rack.

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