Pipe stacking unit and stacking machine

Abstract

The utility model belongs to the pipe material stacking technical field, concretely relates to a pipe material stacking unit and stacking machine, a pipe material stacking unit, including setting in the side -by -side material stacking mechanism, feeding mechanism and stacking material receiving platform on the frame, the stacking material receiving platform liftable setting in the frame one end, the side -by -side material stacking mechanism is close to the other end setting of frame, feeding mechanism movable setting between one end of side -by -side material stacking mechanism and the above of stacking material receiving platform, still be provided with close arrangement subassembly on feeding mechanism, and feeding mechanism is transported to the stacking material receiving platform with one layer close arrangement's pipe material, the pipe material is transferred to the side -by -side material stacking mechanism and forms a layer pipe material, and feeding mechanism receives the pipe material from the side -by -side material stacking mechanism, and feeding mechanism is transferred to the stacking material receiving platform with close side -by -side's pipe material, and the stacking material receiving platform receives a layer pipe material and then falls a layer, the utility model has realized the multilayer full automation of pipe material and has improved the efficiency of stacking, has saved the human resources.

Description

Technical Field

[0001] This utility model belongs to the field of pipe palletizing technology, specifically relating to a pipe palletizing unit and a palletizing machine. Background Technology

[0002] In the pipe production process, pipes are stacked for convenient storage, transportation, and management. This involves stacking pipes together in a specific order. Traditional manual stacking requires a large amount of labor, increasing labor costs, and manual operation poses certain safety hazards. With the continuous development of automated equipment, pipe stacking has gradually become automated. However, existing stacking machines are relatively large, and they can only stack round or square pipes, making them unsuitable for stacking both types of pipes. Furthermore, existing stacking machines can only stack pipes of the same length or similar lengths, which is not flexible enough. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a pipe palletizing unit and palletizing machine that can automatically palletize pipes and improve the efficiency of pipe production.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a pipe stacking unit, including a parallel stacking mechanism, a feeding mechanism, and a stacking receiving platform mounted on a frame. The stacking receiving platform is vertically detachable at one end of the frame, the parallel stacking mechanism is located near the other end of the frame, and the feeding mechanism is movably mounted between one end of the parallel stacking mechanism and above the stacking receiving platform. A closely spaced assembly is also provided on the feeding mechanism, which transports a layer of closely spaced pipes to the stacking receiving platform.

[0005] Preferably, the parallel stacking mechanism includes a claw and a translational conveying mechanism. The translational conveying mechanism is disposed between the loading mechanism and the feeding mechanism. The claw is disposed at one end of the translational conveying mechanism near the loading mechanism, and the claw is movably mounted on the frame along the conveying direction of the translational conveying mechanism.

[0006] Preferably, the translational conveying mechanism includes a conveying chain and a rotating drive component. The conveying chain is wound around two conveying sprockets, each of which is connected to the rotating drive component. The upper side of the conveying chain is set higher than the upper plane of the frame, and at least one stop is protruding from the outer side of the conveying chain.

[0007] Preferably, the feeding mechanism includes a feeding plate and a guide assembly. The closely arranged assembly is a lifting power component. The guide assembly is arranged on the frame along the material conveying direction. The feeding plate is slidably arranged on the guide assembly. The lifting power component is connected to one end of the guide assembly near the stacking receiving platform.

[0008] Preferably, the guiding component is a guide column, which is rotatably connected to the frame. The feeding plate is slidably mounted on the guide column through a connecting frame. The connecting frame is connected to a telescopic drive component. The lifting power component is hinged to one end of the guide column near the stacking receiving platform. A baffle is provided on the upper side of the feeding plate.

[0009] Preferably, the palletizing receiving platform includes a column and a tray, the upper side of the tray is horizontally arranged, and the tray is mounted on the column in a liftable manner.

[0010] Preferably, a front stop bar and a rear stop bar are respectively provided at the two ends of the pallet away from and near the frame. The front stop bar can be installed on the upper side of the pallet at an angle or vertically. The rear stop bar is installed at an angle and the angle direction is opposite to that of the front stop bar. The lower end of the rear stop bar is movably installed on the frame in the direction of approaching or moving away from the frame. An upper stop bar is also connected to the upper end of the front stop bar. The upper stop bar is set parallel to the rear stop bar. A baffle plate is provided on the opposite side of the upper stop bar. The baffle plate is telescopically installed on the frame in the direction of approaching or moving away from the upper stop bar. The baffle plate is inclined on the side opposite to the upper stop bar to form a baffle slope. The baffle slope is set parallel to the front stop bar.

[0011] Preferably, a guide groove is provided on the rear stop bar along its inclined direction, a guide wheel is provided on one side of the support plate, the guide wheel is slidably installed in the guide groove, and the lower end of the rear stop bar is slidably connected to the rear stop bar guide rail.

[0012] Preferably, a card plate is provided on the upper side of the frame near the stacking receiving table, and the card plate is retractably mounted on the frame.

[0013] A pipe palletizing machine includes at least two of the above-mentioned palletizing units, which are arranged side by side at intervals. The parallel stacking mechanism and feeding mechanism of each palletizing unit operate synchronously, and the palletizing receiving platform of each palletizing unit is raised and lowered synchronously.

[0014] Compared with existing technologies, the above technical solution has the following beneficial effects:

[0015] 1. In the pipe stacking unit of this utility model, round or square pipes are transferred to the parallel stacking mechanism. Pipe stacking requires multiple layers of pipes to be stacked. Pipes are transferred one by one to the parallel stacking mechanism to form a layer of pipes. The feeding mechanism receives a layer of pipes from the parallel stacking mechanism and conveys the layer of pipes to the stacking receiving platform at one end of the frame. However, before conveying the pipes, the layer of pipes needs to be neatly and tightly arranged side by side. Therefore, a tight arrangement component is provided on the feeding mechanism to help keep the pipes tightly arranged side by side during the conveying process. After the stacking receiving platform receives a layer of pipes, it lowers the height of the layer of pipes. Then, the above process is repeated to stack the next layer of pipes on the pipes on the stacking receiving platform until the stacking is completed. This utility model realizes fully automated pipe stacking, realizes multi-layer stacking of pipes, improves stacking efficiency, and saves manpower.

[0016] 2. The stacking receiving platform includes a horizontally positioned tray at the bottom, on which square tubes can be directly stacked. The stacking receiving platform also includes a front stop, a rear stop, an upper stop, and a baffle. The front stop, rear stop, upper stop, baffle, and tray together form a regular hexagonal stacking space. When stacking round tubes, they need to be interposed and stacked. Therefore, round tubes can be stacked in a regular hexagonal stacking manner. This utility model can be used for stacking both square tubes and round tubes.

[0017] 3. The pipe palletizing machine of this utility model includes at least two palletizing units, which are arranged side by side at intervals. Each mechanism of each palletizing unit operates synchronously. When palletizing long pipes, each palletizing unit can be linked together to palletize the long pipes at the same time. The number of palletizing units used in linkage can be flexibly selected according to the length of the pipe. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a side view of the present invention.

[0020] Figure 3 This is a partial structural diagram of the feeding mechanism.

[0021] Figure 4 This is a schematic diagram of the feeding mechanism.

[0022] Figure 5 This is a schematic diagram of the material handling mechanism.

[0023] Figure 6 This is a schematic diagram of the feeding mechanism.

[0024] Figure 7 This is a schematic diagram of the anti-fall mechanism.

[0025] Figure 8 This is a side view of the palletizing and receiving station.

[0026] Figure 9 This is a partial structural diagram of the palletizing and receiving platform.

[0027] Figure 10 This is a schematic diagram of the structure of the front baffle assembly for round tubes.

[0028] Figure 11 This is a schematic diagram of the material blocking mechanism.

[0029] Figure 12 This is a schematic diagram of the front baffle assembly for square tubes.

[0030] Figure 13 This is a schematic diagram of a palletizer.

[0031] The components include: 1. Frame; 2. Feeding mechanism; 3. Transition inclined plate; 4. Feeding mechanism; 5. Horizontal conveying mechanism; 6. Feeding mechanism; 7. Anti-fall mechanism; 8. Blocking mechanism; 9. Stacking receiving platform; 10. Feeding cylinder; 11. Claw; 12. Limiting wheel; 13. Limiting plate; 14. Relief groove; 15. Conveying sprocket; 16. Conveying chain; 17. Stop block; 18. Transmission chain; 19. Conveying shaft; 20. Transmission sprocket; 21. Guide column; 22. Rotating shaft; 23. Lifting cylinder; 24. Feeding plate; 25. Baffle; 26. Connecting frame; 27. Moving roller. 8. Feeding cylinder 29. Connecting plate 30. Clamping plate 31. Anti-fall cylinder 32. Baffle plate 33. Baffle inclined surface 34. Baffle cylinder 35. Baffle guide rail 36. Support plate 37. Front stop bar 38. Rear stop bar 39. Column 40. Lifting chain 41. Lifting sprocket 42. Transition wheel 43. Guide groove 44. Guide wheel 45. Rear stop bar guide rail 46. Adjusting groove 47. Adjusting screw 48. Adjusting nut 49. Rotating pin 50. Fixing hole 51. Mounting groove 52. Upper stop bar 53. Lifting frame 54. Lifting roller. Detailed Implementation

[0032] Figures 1-13 This is the preferred embodiment of the present invention, which is described below in conjunction with the appendix. Figures 1-13 The present invention will be further described below.

[0033] like Figures 1-2As shown, a pipe stacking unit of this utility model includes a parallel stacking mechanism, a feeding mechanism 6, and a stacking receiving platform 9, all mounted on a frame 1. In this embodiment, a loading mechanism 2 is also provided. The loading mechanism 2 and the stacking receiving platform 9 are respectively located at both ends of the frame 1. The parallel stacking mechanism is positioned close to the loading mechanism 2. The loading mechanism 2 transfers pipes one by one to the parallel stacking mechanism, and the pipes are arranged adjacent to each other on the parallel stacking mechanism. The parallel stacking mechanism then conveys one layer of pipes to the feeding mechanism 6, which is movably mounted on the parallel stacking mechanism. Between one end and the top of the stacking receiving platform 9, a closely arranged assembly is also provided on the feeding mechanism 6. The feeding mechanism 6 conveys a layer of closely arranged pipes to the stacking receiving platform 9. The stacking receiving platform 9 is installed at one end of the frame 1 in a liftable manner. After a layer of pipes is stacked on the stacking receiving platform 9, the height of the layer of pipes is lowered. Then the feeding mechanism 2 feeds again, and another layer of pipes is stacked side by side on the parallel stacking mechanism. Finally, the feeding mechanism 6 conveys another layer of pipes to the stacking receiving platform 9 and stacks it on the previous layer of pipes on the stacking receiving platform 9, thus forming a multi-layer stack of pipes.

[0034] The parallel stacking mechanism includes a material feeding mechanism 4 and a translation conveying mechanism 5. The translation conveying mechanism 5 is located between the loading mechanism 2 and the feeding mechanism 6. The material feeding mechanism 4 is located at one end of the translation conveying mechanism 5 near the loading mechanism 2. A transition inclined plate 3 is provided at one end of the frame 1 near the loading mechanism 1. The transition inclined plate 3 is located on the upper side of the frame 1, with the end of the transition inclined plate 3 near the loading mechanism 2 being higher than the other end. The loading mechanism 2 transfers the pipes to the frame 1. At this time, the pipes are placed on the transition inclined plate 3. The material feeding mechanism 4 pushes the pipes, causing them to slide along the transition inclined plate 3 onto the translation conveying mechanism 5. One pipe after another is pushed onto the translation conveying mechanism 5 by the material feeding mechanism 4, and the next pipe pushes the previous pipe in turn, so that the pipes are arranged side by side in sequence.

[0035] like Figures 3-4As shown, the feeding mechanism 4 includes a feeding claw 11 and a feeding cylinder 10. The feeding cylinder 10 is arranged along the conveying direction of the pipe. The feeding claw 11 is connected to the output end of the feeding cylinder 10. The upper end of the feeding claw 11 protrudes from the upper side of the frame 1. The upper end of the feeding claw 11 pushes the pipe. In this embodiment, two limiting wheels 12 are rotatably connected to the lower end of the feeding claw 11. A limiting plate 13 is fixedly installed on the frame 1. The limiting plate 13 is made of channel steel. The feeding cylinder 10 is installed on the limiting plate 13. The two limiting wheels 12 are... The rollers are stuck on both sides of the limiting plate 13. The limiting plate 13 has a clearance groove 14 for the claw 11 to move. When the claw 11 is not running, it is set close to the feeding mechanism 2. When the feeding mechanism 2 transfers a tube to the frame 1, the tube falls on the end of the claw 11 away from the feeding mechanism 2. The output shaft of the feeding cylinder 10 retracts and drives the claw 11 to move. After the claw 11 moves and moves the tube from the frame 1 to the translation conveying mechanism 5, the feeding cylinder 10 drives the claw 11 to reset and move the next tube.

[0036] like Figure 5 As shown, the translational conveying mechanism 5 includes a conveying chain 16 and a rotation drive. The conveying chain 16 is arranged along the length of the frame 1 and is wound around two conveying sprockets 15. The two conveying sprockets 15 are rotatably mounted on the frame 1. Each of the conveying sprockets 15 is connected to a rotation drive. In this embodiment, the rotation drive is a motor. A conveying shaft 19 is connected to the output end of the motor. A transmission sprocket 20 is coaxially arranged on the conveying shaft 19. A transmission sprocket 20 is also coaxially arranged on one side of each conveying sprocket 15. A transmission chain 18 is wound around the outside of the two transmission sprockets 20. The motor drives the material conveying shaft 19 to rotate, and the transmission chain 20 transmits the rotational power to the material conveying sprocket 15. The material conveying sprocket 15 drives the material conveying chain 16 to rotate, and the claw 11 pushes the pipes one by one onto the material conveying chain 16. A slot is opened on the frame 1, and the material conveying chain 16 is installed in the slot with its upper side higher than the upper plane of the frame 1. At least one stop block 17 is provided on the outside of the material conveying chain 16. When the material conveying chain 16 rotates to convey the pipes, the stop block 17 can block the pipes from behind and push the pipes, ensuring that the pipes are conveyed by the material conveying chain 16. In this utility model, two stop blocks 17 are evenly arranged at intervals.

[0037] The translational conveying mechanism 5 transports the parallel pipes to the feeding mechanism 6, which then transports a layer of parallel pipes to the stacking receiving platform 9. The feeding mechanism 6 includes a feeding plate 24 and a guide assembly. The closely arranged assembly is a lifting power component. The guide assembly is set on the frame 1 along the material transport direction. The feeding plate 24 is slidably set on the guide assembly. The lifting power component is connected to the end of the guide assembly near the stacking receiving platform 9. The conveying chain 16 transports a layer of pipes onto the feeding plate 24. Then, the lifting power component lifts the end of the guide assembly near the stacking receiving platform, making the feeding plate 24 higher than the frame 1. The feeding plate 24 then moves along the guide assembly to above the stacking receiving platform 9. The lifting power component then falls down again. The feeding plate 24 then moves back to its original position along the guide assembly. At this time, a layer of pipes is blocked by one end of the frame 1 and falls onto the stacking receiving platform 9. The stacking receiving platform 9 then lowers to the height of one layer of pipes to await the next layer of pipes.

[0038] Specifically, such as Figure 6 As shown, the guiding component is a guide post 21, which is arranged along the length of the frame 1 and rotatably connected to the frame 1 via a rotating shaft 22. The feeding plate 24 is slidably mounted on the guide post 21 via a connecting frame 26. Two sets of moving rollers 27 are arranged on the connecting frame 26, each set of moving rollers 27 containing two moving rollers 27. The two sets of moving rollers 27 are respectively rolled on the upper and lower sides of the guide post 21. The connecting frame 26 is connected to a telescopic drive component, which is a feeding cylinder 28. The feeding cylinder 28 is installed on the lower side of the guide post 21 along the length of the guide post 21. The feeding cylinder 28 pushes the connecting frame 26 to move along the guide post 21, thereby causing the feeding plate 24 to move along the guide post 21. The lifting power component is a lifting cylinder 23, which is rotatably mounted on the frame 1. The output end of the upper end of the lifting cylinder 23 is hinged to one end of the guide post 21 near the stacking receiving platform 9.

[0039] Guide posts 21 are located below the upper side of the frame 1. A slot is provided on the upper side of the frame 1 for the feeding plate 24 to pass through and move. When the conveying chain 16 is transporting pipes, the output end of the feeding cylinder 28 retracts, causing the feeding plate 24 to approach the end of the conveying chain 16. The output end of the lifting cylinder 23 also retracts, ensuring the feeding plate 24 does not exceed the height of the frame 1. When the conveying chain 16 transports a layer of pipes, the layer will fall onto the feeding plate 24. Then, the lifting cylinder 23 pushes the guide posts 21 upwards, causing the feeding plate 24 to rise above the frame 1. However, at this time, both ends of the guide posts 21... Since the heights are not uniform, to prevent the pipes on the feeding plate 24 from rolling upwards, a baffle 25 is provided on the feeding plate 24 protruding upwards. The baffle 25 blocks the pipes to prevent them from sliding. Then, the feeding cylinder 28 pushes the feeding plate 24 to the front end of the guide column 21, so that the pipes on the feeding plate 24 are above the stacking receiving platform 9. At this time, the lifting cylinder 23 drives the feeding plate 24 back down to a position no higher than the frame 1. Then, the feeding cylinder 28 pulls the feeding plate 24 back to its original position. The pipes on the feeding plate 24 are blocked by the side of the end of the frame 1, so that the pipes fall from the feeding plate 24 onto the stacking receiving platform 9 below.

[0040] like Figure 7 As shown, to prevent the pipe from rolling off the front end of the feeding plate 24 when the conveying chain 16 delivers it to the feeding plate 24, in this embodiment, "front" refers to one end of the stacking receiving platform 9 of the frame 1, and "rear" refers to one end of the feeding mechanism 2. An anti-fall mechanism 7 is provided on the upper side of the frame 1 near the stacking receiving platform 9. The anti-fall mechanism 7 includes a clamping plate 30 and an anti-fall cylinder 31. A connecting plate 29 is fixedly installed on the frame 1. One end of the anti-fall cylinder 31 is rotatably connected to the connecting plate 29. The output of the anti-fall cylinder 31... The end of the clamping plate 30 is hinged to the lower side of one end, and the other end of the clamping plate 30 is also rotatably connected to the connecting plate 29. The clamping plate 30 protrudes upwards at the hinge point with the anti-fall cylinder 31. The extension and retraction of the anti-fall cylinder 31 causes the clamping plate 30 to rotate around its connection with the connecting plate 29, thus extending and retracting the protruding position of the clamping plate 30 relative to the upper side of the frame 1. The protruding position of the clamping plate 30 is used to prevent the pipe from rolling off. When the lifting cylinder 23 lifts the guide column 21, the clamping plate 30 retracts downwards to prevent it from obstructing the transport of the pipe. In other embodiments, the clamping plate 30 can be directly connected to a vertically arranged raising and lowering cylinder to drive its raising and lowering, thus achieving the extension and retraction of the clamping plate 30.

[0041] like Figures 8-9As shown, the palletizing receiving platform 9 includes vertically arranged columns 39 and pallet 36. The columns 39 are fixedly installed on the frame 1, and the upper side of the pallet 36 is horizontally arranged, and the pallet 36 is mounted on the columns 39 in a liftable manner. Specifically, in this embodiment, two columns 39 are arranged at intervals, and the pallet 36 is mounted on the outer column 39 in a liftable manner. The pallet 36 is connected to the columns 39 through a lifting frame 53. Two sets of lifting rollers 54 are arranged at intervals on the lifting frame 53. Each set of lifting rollers 54 includes two lifting rollers 54, and the two sets of lifting rollers 54 are respectively rolled on both sides of the column 39. The lifting frame 53 is connected to a lifting assembly.

[0042] The lifting assembly includes a lifting chain 40, a lifting sprocket 41, and a motor. The lifting sprocket 41 is connected to the output end of the motor. One end of the lifting chain 40 is fixedly connected to the lifting sprocket 41, and the other end of the lifting chain 40 passes through two columns 39 and is connected to the lifting frame 53. Transition wheels 42 are rotatably installed at the upper ends of the two columns 39. The lifting chain 40 passes over the two transition wheels 42 from the upper side and is connected to the lifting frame 53. The motor drives the lifting sprocket 41 to rotate, which in turn causes the lifting chain 40 to rotate. This causes the other end of the lifting chain 40 to drive the lifting frame 53 to rise and fall along the columns 39. One rotation of the lifting sprocket 41 is exactly the height at which a set of pipes is stacked.

[0043] Square tubes can be stacked stably on pallet 36, but round tubes cannot be stacked directly on pallet 36. Generally, round tubes need to be stacked with gaps between them. Therefore, round tubes can be stacked in a regular hexagonal stacking pattern. The stacking receiving platform 9 also includes multiple stops to help stabilize the stacked round tubes.

[0044] A front stop bar 37 and a rear stop bar 38 are respectively provided at the two ends of the pallet 36, one away from and one near the frame 1. The front stop bar 37 can be installed tilted or vertically on the upper side of the pallet 36. When used with a round tube, the front stop bar 37 is installed tilted on the upper side of the pallet 36, with the upper end of the front stop bar 37 tilted away from the frame 1. The lower end of the rear stop bar 38 is movably installed on the frame 1 along the direction of approaching or away from the frame 1. The rear stop bar 38 is tilted, and the tilting direction is the same as that of the front stop bar 37. The diagonal directions are opposite. The front stop bar 37, the rear stop bar 38, and the support plate 36 form the lower half of the frame of a regular hexagon. When the round tubes are stacked, the support plate 36 first rises to the top, and the bottom round tube is first transported to the top of the support plate 36. Then the support plate 36 moves down one layer of round tubes, and the next layer of round tubes is stacked on top of the bottom round tube. The number of round tubes in the next layer is one more than the number of round tubes in the bottom layer. The stacking of round tubes is carried out in sequence until the stacking of round tubes in the lower half of the regular hexagon is completed.

[0045] As the number of tubes in the lower half of the stack gradually increases, the front stop 37 gradually descends to ensure stable and regular stacking. This causes the gap between the front stop 37 and the rear stop 38 to become smaller. The rear stop 38 needs to gradually slide away from the front stop 37 to maintain a constant gap between them. Therefore, a guide groove 43 is provided on the rear stop 38 along its inclined direction. A guide wheel 44 is provided on one side of the lifting frame 53 and is slidably installed in the guide groove 43. The lower end of the rear stop 38 is slidably connected to the rear stop guide rail 45. When the lifting frame 53 descends, the guide wheel 44 also descends. The guide groove 43 of the rear stop 38 slides as the guide wheel 44 descends, causing the rear stop 38 to slide away from the front stop 37 along the rear stop guide rail 45 to ensure stable stacking of the tubes.

[0046] like Figure 10 As shown, the front stop bar 37, rear stop bar 38, and support plate 36 alone can only form the lower half of the frame of a regular hexagon. Therefore, an upper frame is also needed to form a regular hexagonal stack of round tubes. An upper stop bar 52 is connected to the upper end of the front stop bar 37. Two front stop bars 37 are spaced apart, and mounting grooves 51 are formed on the two front stop bars 37 along their inclined direction. The upper stop bar 52 is fixedly installed between the two front stop bars 37 by bolts and nuts, and the installation position of the upper stop bar 52 can be along the mounting groove 51. 1. Adjustment: The upper stop bar 52 is set parallel to the rear stop bar 38. As one side of the upper half of the regular hexagonal stacking, the upper stop bar 52 needs to be set on the opposite side to realize the entire regular hexagonal frame. The upper side does not need to be set with a stop bar due to gravity and the parallel pipes. However, if the stop bar is directly connected to the upper side of the rear stop bar 38, it will cause the pipes to be blocked from transferring from the feeding plate 24 to the pallet 36. Therefore, the stop bar on the opposite side of the upper stop bar 52 needs to be telescopically installed on the frame 1.

[0047] like Figure 11 As shown, a material blocking mechanism 8 is provided on the frame 1 near the stacking receiving platform 9. The material blocking mechanism 8 serves as a stop on the opposite side of the upper stop bar 52. The material blocking mechanism 8 includes a material blocking plate 32 and a material blocking cylinder 34 that drives its extension and retraction. The material blocking plate 32 is located on the opposite side of the upper stop bar 52. The material blocking cylinder 34 is mounted on the frame 1. The material blocking plate 34 is connected to the output end of the material blocking cylinder 34. The material blocking cylinder 34 drives the material blocking plate 32 to move in the direction of approaching or moving away from the upper stop bar 52. The material blocking plate 32 is inclined on the side opposite to the upper stop bar 52 to form a material blocking slope 33. The material blocking slope 33 is set parallel to the front stop bar 37. The upper stop bar 52 and the material blocking slope 33 are the upper half of a regular hexagonal frame. A material blocking guide rail 35 is horizontally fixed on one side of the material blocking plate 32. The material blocking plate 32 is slidably connected to the material blocking guide rail 35 to ensure that the material blocking plate 32 is pushed out horizontally and stably.

[0048] Before the feeding plate 24 feeds the pipe to the pallet 36, the baffle plate 32 retracts into the frame 1 to prevent it from obstructing the pipe. After the feeding cylinder 28 pushes the feeding plate 24 to position the pipe above the pallet 36, the lifting cylinder 23 lowers the feeding plate 24 back to a position no higher than the frame 1. During the stacking of square pipes, the baffle plate 32 ceases operation, and the square pipes are blocked by the side of the end of the frame 1, allowing the pipes to fall from the feeding plate 24 onto the stacking receiving platform 9 below. (The last sentence appears to be incomplete and possibly refers to a different type of pipe.) During stacking, the baffle plate 32 is pushed out, and then the feeding cylinder 28 pulls the feeding plate 24 to reset. The pushing slope 33 on the front side of the baffle plate 32 blocks the round tube. When the lower half of the round tube is stacked, the round tube will fall down and be sorted and stacked again by the front baffle 37 and the rear baffle 38. The upper half of the round tube will be directly pushed down by the pushing slope 33. The pushing slope 33 and the upper baffle 52 will sort and stack the round tube together, and finally complete the regular hexagonal stacking of the round tube.

[0049] When stacking round tubes, various stops are required. However, when stacking square tubes, since they do not roll, they can be stacked directly without various stops. After removing the guide wheel 44, the rear stop bar 38 is pushed directly into the frame 1, and the upper stop bar 52 is removed at the same time. The baffle plate 32 does not participate in the stacking of square tubes. In order to prevent the front stop bar 37 from also blocking the stacking of square tubes, the upper stop bar 37 is movably installed on the upper side of the pallet 36.

[0050] like Figure 12 As shown, the upper stop lever 37 is mounted on a mounting base. The lower end of the upper stop lever 37, near the pipe, is rotatably mounted on the mounting base via a rotating pin 49. When the upper stop lever 37 is tilted, the contact surface with the support plate 36 is flat. Therefore, the upper stop lever 37 can maintain its tilted state under the weight of gravity and the squeezing force of the pipe. A fixing hole 50 is provided on the lower end of the upper stop lever 37 away from the pipe. A corresponding through hole is also provided on the upper side of the rotating pin 49 on the mounting base. When it is necessary to make the upper stop lever 37 vertical, rotate the upper stop lever 37 to make it vertical, and then fix it. Hole 50 is fixed to the mounting base with bolts and nuts to keep it in a vertical position. The mounting base is also adjustablely mounted on the support plate 36 via adjusting screw 47. The adjusting screw 47 is set on the lower side of the support plate 36 along the length of the frame 1. An adjusting groove 46 is provided on the support plate 36. The adjusting nut 48 is threaded to the adjusting screw 47, and the upper end of the adjusting nut 48 passes through the adjusting groove 46 and is connected to the mounting base. Rotating the adjusting screw 47 causes the adjusting nut 46 to move along the adjusting screw 48, thereby adjusting the position of the front stop 37.

[0051] like Figure 13As shown, this utility model discloses a pipe palletizing machine, comprising at least two of the aforementioned palletizing units. Three palletizing units are arranged side-by-side with intervals between them. The feeding mechanism 2, the side-by-side stacking mechanism, and the conveying mechanism 6 of each palletizing unit operate synchronously. The conveying shafts 19 of each palletizing unit are coaxial and fixedly connected. Therefore, only the conveying shaft 19 of the outermost palletizing unit is connected to a motor. A single motor can synchronously drive the conveying shafts 19 of all palletizing units to rotate synchronously, enabling the conveying chains 16 of each palletizing unit to transport materials synchronously. The stacking receiving platform 9 of each stacking unit is also raised and lowered synchronously. The rotating shaft in the middle of the lifting sprocket 41 of each stacking unit is also coaxial and fixedly connected. Only the lifting sprocket 41 of the outermost stacking unit is connected to the motor. Through one motor, all the lifting sprockets 41 of the stacking units can be driven to rotate synchronously, so that the lifting chain 40 of each stacking unit can drive the pallet 36 to rise and fall synchronously. When stacking longer pipes, each stacking unit can be linked together to stack the long pipes at the same time. The number of stacking units used in linkage can be flexibly selected according to the length of the pipe.

[0052] Simultaneously, an alignment plate can be set on the side of the outermost stacking unit. The alignment plate can be flipped or movably installed on one side of the stacking unit. After the stacking unit conveys a layer of round tubes to the pallet 36, the alignment plate pushes the round tubes to align the ends of the tubes, making the stacking more neat. In addition, conveying rollers can be installed between each stacking unit. After the overall stacking is completed, the pallet 36 is lowered to the lowest point, so that the stacked tubes fall on each conveying roller. Each conveying roller conveys the tubes to the appropriate position. For the conveying of square tubes, only the conveying roller is set at the bottom. The bottom conveying roller can convey the square tubes. However, the stacked round tubes need to maintain a regular hexagonal stack. Therefore, when conveying the regular hexagonal round tubes, the conveying rollers need to fix the lower half of the regular hexagon with the inclined conveying rollers on both sides. The upper half can remain stable under the action of gravity. Therefore, three conveying rollers are needed to convey the stacked round tubes.

[0053] In use, the feeding mechanism 2 transfers a pipe onto the frame 1. The feeding cylinder 10 drives the claw 11 to move, which moves the pipe from the frame 1 onto the conveyor chain 16. Then, the feeding cylinder 10 drives the claw 11 to reset and move the next pipe, until a layer of pipes is arranged sequentially on the conveyor chain 16. The electric rotation causes the conveyor chain 16 to rotate and transport the pipes. The stop block 17 blocks the pipes from behind, pushing them forward. The conveyor chain 16 transports the pipes to the feeding plate 24. The lifting cylinder 23 pushes the guide column 21 upward so that the feeding plate 24 is higher than the frame 1, and then the pipes are fed. Cylinder 28 pushes the feeding plate 24 to the front end of the guide column 21, so that the pipe on the feeding plate 24 is above the pallet 36. At this time, lifting cylinder 23 drives the feeding plate 24 back to a position no higher than the frame 1. Then, feeding cylinder 28 pulls the feeding plate 24 back to its original position. The pipe on the feeding plate 24 is blocked by the side of the end of the frame 1 or by the baffle plate 32, causing the pipe to fall from the feeding plate 24 onto the pallet 36 below. Then, lifting sprocket 41 rotates to lower the pallet 36 by one layer of pipe, waiting for the next layer of pipe to be stacked. The above process is repeated until the pipe is stacked. During stacking, an alignment plate can be used to align the ends of the pipes. After stacking, a conveying roller can be used to transport the pipes to a suitable position. This utility model realizes fully automated stacking of pipes, realizes multi-layer stacking of pipes, improves stacking efficiency, and saves manpower.

[0054] In other embodiments, the closely arranged assembly can also be an arrangement cylinder. The feeding plate 24 is set below the conveying chain 16 but above the upper end surface of the frame 1. The arrangement cylinder is set along the length direction of the feeding plate 24. The baffle 25 is set near the stacking receiving table 9. A pusher plate is set at the end of the arrangement cylinder. The pusher plate pushes a layer of pipes to the baffle 25. Under the compression of the pusher plate and the baffle 25, the pipes are closely arranged side by side. In order to smoothly transport a layer of pipes to the stacking receiving table 9, the baffle 25 needs to be connected to a telescopic lifting cylinder. After the closely arranged assembly, when the feeding cylinder 28 pushes the pipes above the stacking receiving table 9 and resets, the baffle 25 needs to retract. Of course, in this embodiment, a special blocking and unloading mechanism is also required because the end side of the frame 1 cannot be used to block the pipes in this embodiment. The blocking and unloading mechanism can be a telescopic blocking and unloading plate.

[0055] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A pipe stacking unit, characterized by: It includes a parallel stacking mechanism, a feeding mechanism (6) and a stacking receiving platform (9) set on the frame (1). The stacking receiving platform (9) is set at one end of the frame (1) and can be raised and lowered. The parallel stacking mechanism is set at the other end near the frame (1). The feeding mechanism (6) is movably set between one end of the parallel stacking mechanism and the top of the stacking receiving platform (9). A closely arranged assembly is also set on the feeding mechanism (6). The feeding mechanism (6) transports a layer of closely arranged pipes to the stacking receiving platform (9).

2. A pipe palletizing unit according to claim 1, characterized in that: The parallel stacking mechanism includes a claw (11) and a translation conveying mechanism (5). The translation conveying mechanism (5) is located between the loading mechanism (2) and the feeding mechanism (6). The claw (11) is located at one end of the translation conveying mechanism (5) near the loading mechanism (2), and the claw (11) is movably mounted on the frame (1) along the conveying direction of the translation conveying mechanism (5).

3. A pipe palletizing unit according to claim 2, characterized in that: The translational conveying mechanism (5) includes a conveying chain (16) and a rotating drive. The conveying chain (16) is wound around two conveying sprockets (15). Each conveying sprocket (15) is connected to a rotating drive. The upper side of the conveying chain (16) is set higher than the upper plane of the frame (1). At least one stop (17) is protruding from the outside of the conveying chain (16).

4. A pipe stacking unit according to claim 1, characterized in that: The feeding mechanism (6) includes a feeding plate (24) and a guide assembly. The closely arranged assembly is a lifting power component. The guide assembly is set on the frame (1) along the material conveying direction. The feeding plate (24) is slidably set on the guide assembly. The lifting power component is connected to one end of the guide assembly near the stacking receiving platform (9).

5. A pipe stacking unit according to claim 4, characterized in that: The guiding component is a guide column (21), which is rotatably connected to the frame (1). The feeding plate (24) is slidably mounted on the guide column (21) through the connecting frame (26). The connecting frame (26) is connected to a telescopic drive component. The lifting power component is hinged to one end of the guide column (21) near the stacking receiving platform (9). A baffle (25) is provided on the feeding plate (24) protruding upward.

6. A pipe stacking unit according to claim 1, characterized in that: The palletizing receiving platform (9) includes a column (39) and a pallet (36). The upper side of the pallet (36) is horizontally arranged, and the pallet (36) is installed on the column (39) in a height-adjustable manner.

7. A pipe stacking unit according to claim 6, characterized in that: A front stop (37) and a rear stop (38) are respectively provided at the two ends of the pallet (36) away from and near the frame (1). The front stop (37) can be installed on the upper side of the pallet (36) at an angle or vertically. The rear stop (38) is installed at an angle and the angle direction is opposite to that of the front stop (37). The lower end of the rear stop (38) is movably installed on the frame (1) in the direction of approaching or away from the frame (1). The upper end is also connected to an upper stop bar (52), which is set parallel to the rear stop bar (38). A baffle plate (32) is set on the opposite side of the upper stop bar (52). The baffle plate (32) is telescopically mounted on the frame (1) in the direction close to or away from the upper stop bar (52). The baffle plate (32) is inclined on the side opposite to the upper stop bar (52) to form a baffle slope (33). The baffle slope (33) is set parallel to the front stop bar (37).

8. A pipe stacking unit according to claim 7, characterized in that: A guide groove (43) is provided on the rear stop (38) along its inclined direction. A guide wheel (44) is provided on one side of the support plate (36). The guide wheel (44) is slidably installed in the guide groove (43). The lower end of the rear stop (38) is slidably connected to the rear stop guide rail (45).

9. A pipe stacking unit according to claim 1, characterized in that: A card plate (30) is provided on the upper side of the frame (1) near the stacking receiving table (9). The card plate (30) is retractably mounted on the frame (1).

10. A pipe palletizing machine, characterized in that: It includes at least two palletizing units as described in any one of claims 1 to 9, with each palletizing unit arranged side by side at intervals, and the parallel stacking mechanism and feeding mechanism (6) of each palletizing unit operating synchronously, and the palletizing receiving platform (9) of each palletizing unit rising and falling synchronously.

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