Material rack for batch bundling of seamless steel pipes for ball cage production

Abstract

The invention relates to the technical field of steel pipe conveying and packaging, and discloses a seamless steel pipe batch bundling rack for ball cage production, which comprises an AGV conveying rack unit and a stacking rack unit, the AGV conveying material frame unit is movably arranged in a plant and used for automatically conveying seamless steel pipes into the stacking material frame unit. The stacking rack unit comprises a base, a fixing frame, a sliding frame, a fixing plate and an adjusting screw, the fixing frame is connected to the left side of the top end of the base, the sliding frame is slidably connected to the right side of the top end of the base, the adjusting screw is screwed to the fixing plate, and the end of the adjusting screw is connected with the sliding frame; the multiple seamless steel pipes are placed in a containing space formed by the fixing frame and the sliding frame. Seamless steel pipes are transferred between stations by adopting the AGV conveying material frame, automatic feeding of the material frame during steel pipe bundling is achieved, the structure of the material frame is adjustable and easy to achieve, an operator can adjust the size of a steel pipe containing space according to the number of each bundle of seamless steel pipes, a regular steel pipe material bundling structure can be conveniently formed, and the bundling firmness is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of steel pipe transportation and packaging, and more specifically, to a material rack for batch bundling of seamless steel pipes for ball cage production. Background Art

[0002] The ball cage, also known as the "constant velocity universal joint", is an important component in the car transmission system. Its function is to transfer the power of the engine from the transmission to the drive wheel to drive the car at high speed. It mainly consists of a sliding sleeve, a three-way shaft, a transmission shaft, a star sleeve, a cage, and a bell housing. In order to ensure the mechanical properties of the ball cage, seamless steel pipes are often used as its main raw material. When the steel pipe is produced, the last process requires the finished steel pipe to be placed on the material rack for bundling to form a stable bundling structure such as a hexagon.

[0003] In the prior art, such as the utility model patent with application number CN2202120217600.9, a steel pipe packaging machine is disclosed, including a conveying assembly and a bundling assembly, wherein the conveying assembly includes an inclined conveying plate, the bundling assembly includes a workbench, a material supporting rack installed on the workbench and a bundling belt for bundling steel pipes, at least two material supporting racks are provided, and the material supporting rack includes a support frame provided on the workbench, the support frame includes a base plate and support arms provided on both sides of the base plate, a support groove formed by the base plate and the support arms on both sides of the base plate is provided on the support frame, a first locking arm is hinged on the support arm of the support frame close to the conveying assembly, a guide arm is hinged on the first locking arm, and a second locking arm is rotatably connected to the support arm of the support frame away from the conveying assembly.

[0004] This device carries steel pipes through a support frame of fixed size, and the number of steel pipes that can be bundled is fixed. In actual use, due to the factory specification requirements of the product, different numbers of steel pipes need to be bundled, and the resulting hexagonal bundling structure has different sizes, and the above-mentioned support frame cannot adapt to the adjustment.

[0005] Therefore, it is necessary to propose a material rack for bundling seamless steel pipes in batches for ball cage production to at least partially solve the problems existing in the prior art. Summary of the invention

[0006] A series of simplified concepts are introduced in the Summary of the Invention, which will be further described in detail in the Detailed Description of the Invention. The Summary of the Invention does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the scope of protection of the claimed technical solution.

[0007] In order to at least partially solve the above problems, the present invention provides a material rack for batch bundling of seamless steel pipes for ball cage production, comprising:

[0008] AGV conveying rack unit and stacking rack unit;

[0009] The AGV conveying rack unit is installed in the factory building to automatically convey the seamless steel pipes to the stacking rack unit;

[0010] The stacking rack unit includes: a base, a fixed frame, a slide, a fixed plate and an adjusting screw. The fixed frame is connected to the left side of the top of the base, the slide is slidably connected to the right side of the top of the base, the adjusting screw is screwed to the fixed plate, and the end is connected to the slide; a plurality of seamless steel pipes are placed in the accommodating space formed by the fixed frame and the slide.

[0011] Preferably, the AGV conveying rack unit includes an AGV trolley, a storage rack, a guide plate and a pushing mechanism. The AGV trolley is provided with a GPS positioning system for positioning and moving between preset positions in the factory. The storage rack is installed on the AGV trolley. The guide plate is tilted at the discharge end of the storage rack, and the bottom end of the guide plate corresponds to the top end of the fixed frame. The pushing mechanism is provided on the storage rack, for pushing the seamless steel pipe on the storage rack onto the guide plate for rolling.

[0012] Preferably, the fixed frame and the sliding frame have the same structural form, including:

[0013] A bottom plate, the bottom plate is horizontally arranged above the base;

[0014] Side plates, which are vertically arranged above the base, and the side plates of the slide are connected to the adjusting screw;

[0015] An oblique support plate, the oblique support plate is obliquely connected between the bottom plate and the side plate, and the top ends of the oblique support plates of the fixed frame and the sliding frame are far away from each other;

[0016] A reinforcing plate is connected between the oblique supporting plate and the side plate.

[0017] Preferably, a guide plate is connected to the top of the side plate, the guide plate is slidably connected to the guide groove at the top of the fixed plate, a nut assembly threadedly connected to the adjusting screw is provided on the fixed plate, and a rotating rod is connected to the end of the adjusting screw.

[0018] Preferably, a vibration-damping airbag is connected to the inclined surface of the oblique support plate.

[0019] Preferably, a screw protection unit is connected to the outer side of the fixing plate, and the screw protection unit includes:

[0020] A protective plate, the protective plate is connected to the outside of the fixed plate, a through hole for the adjusting screw to pass through is arranged at the center of the protective plate, and a nut groove is arranged on the side of the protective plate away from the fixed plate;

[0021] The nut block is provided in four pieces, the four nut blocks are combined to form a complete nut, the adjusting screw rod is threadedly connected with the complete nut formed by the combination, and a first spring is connected between the nut block and the side wall of the nut groove.

[0022] Preferably, the screw protection unit further comprises:

[0023] A pressure sensing component, which is connected to the protective plate cavity, is provided with four pressure sensing components, and corresponds to the positions of the four nut blocks, and is communicated with the vibration-damping airbag;

[0024] A trigger block is connected to the protective plate cavity, the trigger block is arranged close to the center of the protective plate, and a gap is provided between the trigger block and the pressure sensing element. When the trigger block contacts the pressure sensing element, electricity is supplied;

[0025] The electromagnetic ring is circumferentially arranged at the center of the protective disk and is connected to the trigger block.

[0026] Preferably, the screw protection unit further comprises:

[0027] A limit post, the limit post is slidably connected to the bottom of the nut groove of the protection plate, one end of the limit post extends into the cavity of the protection plate, and the other end of the limit post abuts against the outside of the nut block;

[0028] The magnetic ring is arranged in the cavity of the protective disk and connected to the end of the limiting column. A second spring is connected between the bottom of the magnetic ring and the cavity of the protective disk. The electromagnetic ring attracts the magnetic ring when energized.

[0029] Preferably, the screw protection unit further comprises:

[0030] A guide post connected to a side of the protective plate away from the fixed plate;

[0031] A support plate, one end of which is slidably connected to the guide column, a third spring is sleeved on the guide column, and two ends of the third spring are respectively connected to the support plate and the protective plate;

[0032] A clamping ring is connected to the adjusting screw and is connected to the other end of the support plate.

[0033] Preferably, the pressure sensing component includes: a slider, a bellows and an electrical connection block. The slider is slidably connected in the protective disk cavity, the bellows is connected between the slider and the side wall of the protective disk cavity, the bellows is connected to the shock-absorbing airbag through a pipeline, and the electrical connection block is connected to the side of the slider close to the trigger block.

[0034] Preferably, the pressure sensing element comprises:

[0035] A box body, which is connected to the protective plate cavity;

[0036] An air dividing column connected to one side of the inner wall of the box body, a first air path is arranged on the air dividing column, an air inlet of the first air path is connected to the vibration-damping airbag through a pipeline, and an air outlet of the first air path penetrates the side wall of the air dividing column and is connected to the inside of the box body;

[0037] An air dividing sleeve, a flange at the end of the air dividing sleeve is slidably connected to the other side of the box body, and the inner wall of the air dividing sleeve is slidably connected to the air dividing column, and a reset spring is connected between the flange and the inner wall of the box body; a second air path is arranged in the air dividing sleeve, and the second air path is arranged around the air dividing column, and both ends of the second air path pass through the inner wall of the air dividing sleeve and are connected to the first air path; a connecting hole is arranged on the second air path; an electrical connection block is connected to the air dividing sleeve;

[0038] A delay chamber, the delay chamber is arranged on the second gas path;

[0039] A delay piston is slidably connected in the delay cavity, a delay spring is connected between the end of the delay piston and the inner wall of the delay cavity, and the elastic coefficient of the delay spring is smaller than the elastic coefficient of the reset spring.

[0040] Compared with the prior art, the present invention has at least the following beneficial effects:

[0041] The material rack for batch bundling of seamless steel pipes for ball cage production provided by the present invention adopts AGV to convey the material rack to transfer the seamless steel pipes between workstations, so as to realize automatic loading of the material rack when bundling the steel pipes. The material rack structure is adjustable, and the adjustment structure is simple and easy to realize. The operator can adjust the size of the steel pipe accommodating space according to the number of seamless steel pipes in each bundle, so as to form a regular steel pipe material bundling structure and improve the bundling firmness.

[0042] The material rack for batch bundling of seamless steel pipes for ball cage production described in the present invention, other advantages, objectives and features of the present invention will be partially reflected through the following description, and will also be partially understood by technical personnel in the field through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0044] Figure 1 It is a schematic diagram of the arrangement structure of the stacking rack unit in the present invention;

[0045] Figure 2 It is a schematic diagram of the connection structure between the stacking rack unit and the guide plate in the present invention;

[0046] Figure 3 It is a structural schematic diagram of the stacking rack unit in the present invention;

[0047] Figure 4 This is a schematic diagram of the installation structure of the screw protection unit in the present invention;

[0048] Figure 5 It is a schematic diagram of the cross-sectional structure of the protection plate in the present invention (the pressure sensing element is the first structural form);

[0049] Figure 6 For the present invention Figure 5 A schematic diagram of the local enlarged structure at point A in the middle;

[0050] Figure 7 For the present invention Figure 5 A schematic diagram of the local enlarged structure at B in the middle;

[0051] Figure 8 It is a schematic cross-sectional structure diagram of the pressure sensing element of the present invention (second structural form);

[0052] Fig. 9 For the present invention Figure 8 Schematic diagram of the local enlarged structure at point C in the middle.

[0053] In the figure: 1. material guide plate; 2. base; 3. fixed frame; 4. slide frame; 5. fixed plate; 6. adjusting screw; 7. rotating rod; 11. bottom plate; 12. side plate; 13. oblique support plate; 14. reinforcing plate; 15. guide plate; 21. protective plate; 22. through hole; 23. nut slot; 24. nut block; 25. first spring; 26. pressure sensing element; 27. trigger block; 28. electromagnetic ring; 29. ​​limit column; 31. Magnetic ring; 32. Second spring; 33. Guide column; 34. Support plate; 35. Third spring; 36. Snap ring; 37. Slider; 38. Bellows; 39. Electrical connection block; 41. Box; 42. Air distribution column; 43. First air path; 44. Pipeline; 45. Air distribution sleeve; 46. Flange; 47. Second air path; 48. Connecting hole; 49. Delay chamber; 50. Delay piston; 51. Reset spring; 52. Delay spring. DETAILED DESCRIPTION

[0054] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments so that those skilled in the art can implement the invention with reference to the description.

[0055] It should be understood that the terms such as “having”, “including” and “comprising” used herein do not exclude the existence or addition of one or more other elements or combinations thereof.

[0056] Embodiment 1:

[0057] like Figure 1 , 2 As shown, the present invention provides a material rack for batch bundling of seamless steel pipes for ball cage production, comprising: an AGV conveying material rack unit and a stacking material rack unit; a plurality of stacking material rack units are evenly arranged along the length direction of the steel pipe;

[0058] The AGV conveying rack unit is installed in the factory building to automatically convey the seamless steel pipes to the stacking rack unit;

[0059] The stacking rack unit includes: a base 2, a fixed frame 3, a slide 4, a fixed plate 5 and an adjusting screw 6. The fixed frame 3 is connected to the left side of the top of the base 2, the slide 4 is slidably connected to the right side of the top of the base 2, the adjusting screw 6 is screwed on the fixed plate 5, and the end is connected to the slide 4; a plurality of seamless steel pipes are placed in the accommodating space formed by the fixed frame 3 and the slide 4.

[0060] The working principle and beneficial effects of the above technical solution are:

[0061] The present invention provides a material rack for bundling seamless steel pipes in batches for producing ball cages. When in use, an AGV conveying material rack is used to load the seamless steel pipes and transfer them between various workstations in a factory. When the seamless steel pipes need to be bundled, the seamless steel pipes are transported to a stacking material rack unit, and a plurality of stacking material rack units are evenly arranged along the length direction of the steel pipes; the seamless steel pipes are unloaded and placed in a storage space formed by a fixed frame 3 and a slide 4; when the number of seamless steel pipes to be bundled changes, the adjusting screw 6 is rotated to drive the slide 4 to move in a horizontal direction, and the width between the fixed frame 4 and the slide 4 is changed to enable it to adapt to different numbers of seamless steel pipes; after a preset number of seamless steel pipes are placed in the storage space, the seamless steel pipes can be bundled manually or by an existing bundling machine.

[0062] Through the above structural design, an AGV conveyor rack is used to transfer seamless steel pipes between workstations, so that automatic loading of the rack is realized when the steel pipes are bundled. The rack structure is adjustable, and the adjustment structure is simple and easy to implement. The operator can adjust the size of the steel pipe accommodating space according to the number of seamless steel pipes in each bundle, so as to form a regular steel pipe material bundling structure and improve the bundling firmness.

[0063] Embodiment 2:

[0064] like Figure 2 As shown, on the basis of the above-mentioned embodiment 1, the AGV conveying rack unit includes an AGV trolley, a storage rack, a guide plate 1 and a pushing mechanism. The AGV trolley is provided with a GPS positioning system for positioning and moving between preset positions in the factory; the storage rack is installed on the AGV trolley; the guide plate 1 is tilted at the discharge end of the storage rack, and the bottom end of the guide plate 1 corresponds to the top end of the fixed frame 3; the pushing mechanism is provided on the storage rack, for pushing the seamless steel pipe on the storage rack to the guide plate 1 to roll.

[0065] The working principle and beneficial effects of the above technical solution are:

[0066] When the AGV conveying rack unit is in use, a GPS positioning system is set on the AGV trolley, so that it can move between preset positions in the factory. The seamless steel pipes to be bundled are placed on the storage rack, and as the AGV trolley moves, they are quickly moved from any workstation to the bundling station, replacing traditional hoisting or manual transportation. There is no need to arrange complex conveyor chains, reducing the workload of workers. When unloading the seamless steel pipe, the pushing structure is started to push the seamless steel pipe from the storage rack, so that the seamless steel pipe can be rolled along the guide plate 1 to the stacking rack unit, thereby realizing rapid unloading of the seamless steel pipe.

[0067] Embodiment 3:

[0068] like Figure 3 As shown, based on the above-mentioned embodiment 1, the fixed frame 3 and the sliding frame 4 have the same structural form, including:

[0069] A bottom plate 11, the bottom plate 11 is horizontally arranged above the base 2;

[0070] A side plate 12, the side plate 12 is vertically arranged above the base 2, and the side plate 12 of the slide 4 is connected to the adjusting screw 6;

[0071] An oblique support plate 13, wherein the oblique support plate 13 is obliquely connected between the bottom plate 11 and the side plate 12, and the top ends of the oblique support plates 13 of the fixed frame 3 and the sliding frame 4 are away from each other;

[0072] The reinforcing plate 14 is connected between the oblique supporting plate 13 and the side plate 12 .

[0073] The working principle and beneficial effects of the above technical solution are:

[0074] The fixed frame 3 and the slide 4 have the same structural form. The bottom plate 11 of the fixed frame 3 is fixedly set on the base 2, and the bottom plate 11 of the slide 4 is slidably set on the base 2; when the position of the slide 4 is adjusted by the adjusting screw 6, the end of the adjusting screw 6 is connected to the side plate 12 of the slide 4 and rotates relatively with the rotating sleeve on the side plate 12. Therefore, as the adjusting screw 6 rotates, the side plate 12 is driven to move in the horizontal direction, and then the oblique support plate 13 is driven to move; the oblique support plate 13 on the fixed frame 3 and the oblique support plate 13 on the slide 4 and the bottom plate 11 constitute the support surface of the lower part of the seamless steel pipe; the oblique support plate 13 helps to form a hexagonal seamless steel pipe stack and shape the bottom of the steel pipe stack.

[0075] Embodiment 4:

[0076] like Figure 2 , 3As shown, based on the above-mentioned embodiment 3, a guide plate 15 is connected to the top of the side plate 12, and the guide plate 15 is slidably connected to the guide groove at the top of the fixed plate 5. A nut assembly threadedly connected to the adjusting screw 6 is provided on the fixed plate 5, and a rotating rod 7 is connected to the end of the adjusting screw 6.

[0077] The working principle and beneficial effects of the above technical solution are:

[0078] The guide plate 15 guides the movement of the slide 4, and a rotating rod 7 is arranged on the adjusting screw 6 to save effort when the adjusting screw 6 rotates.

[0079] Embodiment 5:

[0080] On the basis of the above-mentioned embodiment 4, a vibration-damping airbag is connected to the inclined surface of the oblique support plate 13 .

[0081] The working principle and beneficial effects of the above technical solution are:

[0082] A vibration-damping airbag is arranged on the oblique support plate 13. When the seamless steel pipe rolls along the guide plate 1 to the oblique support plate 13, the damage to the surface of the steel pipe is reduced, and the vibration of the oblique support plate 13 is reduced, so as to prevent the thread of the adjusting screw 6 from failing and the slide 4 from sliding when the vibration impact is large.

[0083] Embodiment 6:

[0084] like Figure 4-7 As shown, based on the above-mentioned embodiment 5, a screw protection unit is connected to the outer side of the fixing plate 5, and the screw protection unit includes:

[0085] A protective plate 21, the protective plate 21 is connected to the outer side of the fixing plate 5, a through hole 22 for the adjusting screw 6 to pass through is provided at the center of the protective plate 21, and a nut groove 23 is provided on the side of the protective plate 21 away from the fixing plate 5;

[0086] Nut blocks 24, four nut blocks 24 are provided, and four nut blocks 24 are combined to form a complete nut, and the adjusting screw rod 6 is screwed to the complete nut formed by the combination, and a first spring 25 is connected between the nut block 24 and the side wall of the nut groove 23;

[0087] A pressure sensing element 26, which is connected to the cavity of the protection plate 21. Four pressure sensing elements 26 are provided and correspond to the positions of the four nut blocks 24. The pressure sensing element 26 is connected to the vibration-damping airbag;

[0088] A trigger block 27, the trigger block 27 is connected to the cavity of the protective plate 21, the trigger block 27 is arranged close to the center of the protective plate 21, and a gap is provided between the trigger block 27 and the pressure sensing element 26, and the trigger block 27 is energized when in contact with the pressure sensing element 26;

[0089] An electromagnetic ring 28, the electromagnetic ring 28 is circumferentially arranged at the center of the protection plate 21, and the electromagnetic ring 28 is connected to the trigger block 27;

[0090] A limiting post 29, the limiting post 29 is slidably connected to the bottom of the nut slot 23 of the protection plate 21, one end of the limiting post 29 extends into the cavity of the protection plate 21, and the other end of the limiting post 29 abuts against the outer side of the nut block 24;

[0091] The magnetic ring 31 is arranged in the cavity of the protective disk 21 and connected to the end of the limiting column 29. A second spring 32 is connected between the bottom of the magnetic ring 31 and the cavity of the protective disk 21. The electromagnetic ring 28 attracts the magnetic ring 31 after being energized.

[0092] The working principle and beneficial effects of the above technical solution are:

[0093] When the seamless steel pipe rolls onto the material rack, there is a situation where the steel pipe is piled up on one side of the slide 4. At this time, the center of gravity of the steel pipe is offset, and the pressure on the slide 4 is relatively large. There is a possibility that the thread of the adjusting screw 6 fails and the slide 4 slides. Therefore, it is necessary to adapt to the stacking state of the steel pipe to protect the adjusting screw 6. By setting the screw protection unit, when there are many steel pipes piled up on one side of the slide 4 causing the center of gravity to shift, the shock-absorbing airbag on the oblique support plate 13 is subjected to a large pressure that exceeds the preset value. The air pressure in the shock-absorbing airbag is relatively large. Under the action of the air pressure, the trigger end of the pressure sensing component 26 extends out and contacts with the trigger block 27. The trigger end of the pressure sensing component 26 is connected to the power supply, so the trigger block 27 energizes the electromagnetic ring 28, causing the electromagnetic ring 28 to generate magnetic force and attract the magnetic ring 31; the magnetic ring 31 moves downward, driving the limit column 29 to move downward, so that the limit column 29 moves downward. The positioning column 29 loses the limit on the nut block 24, and the nut block 24 moves rapidly away from the center of the protective plate 21 under the action of the first spring 25, that is, the four nut blocks 24 are separated, and the nut block 24 and the adjusting screw 6 are no longer threadedly connected; under the action of the pressure of the steel pipe, the slide 4 pushes the adjusting screw 6 to move outward, thereby increasing the steel pipe accommodating space. During the movement, the steel pipes accumulated on the oblique support plate 13 of the slide 4 quickly fall onto the bottom plate 11, even if the steel pipes fall back to the center of the material rack, the pressure on the oblique support plate 13 is reduced.

[0094] After the pressure on the oblique support plate 13 is reduced, the air pressure in the shock-absorbing airbag is reduced, the trigger end of the pressure sensing component 26 is retracted, the trigger block 27 is powered off, the electromagnetic ring 28 loses its magnetism, and the magnetic ring 31 moves upward rapidly under the action of the second spring 32, so that the limit column 29 contacts the bottom of the nut block 24, and the four nut blocks 24 are manually retracted so that the limit column 29 is re-engaged on the outside of the nut block 24 to form a complete nut; push the adjusting screw 6 to make the adjusting screw 6 and the nut threaded together, and then turn the adjusting screw 6 to adjust the position of the slide 4.

[0095] Through the above structural design, a screw protection unit is set on the material rack. When there are many stacked steel pipes and the center of gravity is biased towards the slide 4, the screw protection unit is automatically started according to the pressure state of the shock-absorbing airbag, so that the nut assembly and the adjusting screw 6 are unlocked, so that the slide 4 can slide freely, and the stacked seamless steel pipes roll and slide while sliding. Under the action of gravity, the center of gravity returns to the center position of the fixed frame 3 and the slide 4, thereby reducing the possibility of failure of the thread of the adjusting screw 6 and extending the service life of the adjusting screw 6.

[0096] Embodiment 7:

[0097] like Figure 4-7 As shown, based on the above embodiment 6, the screw protection unit further includes:

[0098] A guide post 33, the guide post 33 is connected to a side of the protection plate 21 away from the fixing plate 5;

[0099] A support plate 34, one end of which is slidably connected to the guide column 33, a third spring 35 is sleeved on the guide column 33, and two ends of the third spring 35 are respectively connected to the support plate 34 and the protective plate 21;

[0100] The snap ring 36 is connected to the adjusting screw 6 , and the snap ring 36 is connected to the other end of the support plate 34 .

[0101] The working principle and beneficial effects of the above technical solution are:

[0102] When the four nut blocks 24 are separated and the nut block 24 is no longer threadedly connected to the adjusting screw 6, the third spring 35 drives the retaining ring 36 to move away from the fixed plate 5, that is, pulls the adjusting screw 6 away from the fixed plate 5, so that the threaded section on the adjusting screw 6 is quickly separated from the nut block 24, thereby accelerating the movement of the slide 4 and the rolling of the steel pipe.

[0103] Embodiment 8:

[0104] like Figure 4-7 As shown, on the basis of the above-mentioned embodiment 6, the pressure sensing component 26 includes: a slider 37, a bellows 38 and an electrical connection block 39, the slider 37 is slidably connected in the cavity of the protective plate 21, the bellows 38 is connected between the slider 37 and the side wall of the cavity of the protective plate 21, the bellows 38 is connected to the shock-absorbing airbag through the pipeline 44, and the electrical connection block 39 is connected to the side of the slider 37 close to the trigger block 27.

[0105] The working principle and beneficial effects of the above technical solution are:

[0106] When the pressure sensing element 26 is in use, the gas in the vibration-damping airbag is pressurized and enters the bellows 38 through the pipeline 44, causing the gas in the bellows 38 to increase and extend, and the bellows 38 pushes the slider 37 to move, and the slider 37 drives the connecting block 39 to move, so that the connecting block 39 contacts the trigger block 27, thereby energizing the trigger block 27. The bellows 38 is elastic, and can automatically shorten and reset after the pressure on the vibration-damping airbag is reduced.

[0107] Embodiment 9:

[0108] like Figure 8 As shown, based on the above-mentioned embodiment 6, the pressure sensing element 26 includes:

[0109] The box body 41 is connected to the cavity of the protection plate 21;

[0110] The air dividing column 42 is connected to one side of the inner wall of the box body 41. The air dividing column 42 is provided with a first air path 43. The air inlet of the first air path 43 is connected to the vibration damping airbag through the pipeline 44. The air outlet of the first air path 43 penetrates the side wall of the air dividing column 42 and is connected to the inside of the box body 41. The air dividing sleeve 45 is connected to the electrical connection block 39.

[0111] The gas dividing sleeve 45, the flange 46 at the end of the gas dividing sleeve 45 is slidably connected to the other side of the box body 41, and the inner wall of the gas dividing sleeve 45 is slidably connected to the gas dividing column 42, and a return spring 51 is connected between the flange 46 and the inner wall of the box body 41; a second gas path 47 is arranged in the gas dividing sleeve 45, and the second gas path 47 is arranged around the gas dividing column 42, and both ends of the second gas path 47 pass through the inner wall of the gas dividing sleeve 45 and are connected to the first gas path 43; a connecting hole 48 is arranged on the second gas path 47;

[0112] A delay chamber 49, which is disposed on the second gas path 47;

[0113] The delay piston 50 is slidably connected in the delay chamber 49 , and a delay spring 52 is connected between the end of the delay piston 50 and the inner wall of the delay chamber 49 . The elastic coefficient of the delay spring 52 is smaller than the elastic coefficient of the return spring 51 .

[0114] The working principle and beneficial effects of the above technical solution are:

[0115] When the pressure sensing element 26 is in use, the gas in the shock-absorbing airbag is pressurized to enter the air dividing column 42 through the pipeline 44, and then flows out from the side of the air dividing column 42 through the first air path 43 of the air dividing column 42, and then enters the second air path 47. When the airflow enters the delay chamber 49, it pushes the delay piston 50 to overcome the elastic force of the delay spring 52 and slide along the inner wall of the delay chamber 49. When the delay piston 59 contacts the other end of the delay chamber 49, as the airflow continues to flow in, the air dividing sleeve 45 is pushed to move as a whole and extend out of the box body 41. When the air dividing sleeve 45 moves, it squeezes the reset spring 51 to store energy for it. An electrical connection block 39 is connected to the air dividing sleeve 45, and the electrical connection block 39 is connected to a power supply. When the electrical connection block 39 contacts the trigger block 27, the trigger block 27 is energized.

[0116] When the instantaneous impact on the shock-absorbing airbag causes an instantaneous pressure increase, the air pressure increases instantaneously and then decreases again, that is, the pressure on the shock-absorbing airbag is not continuous. The airflow generated at this time is not enough to maintain the position of the delay piston 50, that is, it cannot push the air distribution sleeve 45 to move as a whole.

[0117] Through the above-mentioned structural design, a combination of a delay spring 52 and a return spring 51 is adopted. When the airflow enters the pressure sensing element 26, a step-by-step driving action is performed, which has a delay function. After the preset pressure in the shock-absorbing airbag reaches the preset value, the electrical connection block 39 will not be driven to move immediately. Instead, the electrical connection block 39 will be driven to move only after the pressure in the shock-absorbing pressure reaches the preset value and stabilizes, thereby avoiding the instantaneous impact on the shock-absorbing airbag when the steel pipe falls, which may cause the adjusting screw 6 to be accidentally unlocked.

[0118] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0119] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0120] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. Racks for bundling seamless steel pipes in batches for ball cage production. It is characterized in that include: AGV conveying rack unit and stacking rack unit; The AGV conveying rack unit is installed in the factory building to automatically convey the seamless steel pipes to the stacking rack unit; The stacking rack unit comprises: a base (2), a fixed frame (3), a slide frame (4), a fixed plate (5) and an adjusting screw (6); the fixed frame (3) is connected to the left side of the top end of the base (2); the slide frame (4) is slidably connected to the right side of the top end of the base (2); the adjusting screw (6) is screwed to the fixed plate (5) and the end portion is connected to the slide frame (4); a plurality of seamless steel pipes are placed in a receiving space formed by the fixed frame (3) and the slide frame (4).

2. The seamless steel pipe batch bundling rack for ball cage production according to claim 1, It is characterized in that The AGV conveying rack unit comprises an AGV trolley, a material storage rack, a material guide plate (1) and a material pushing mechanism. The AGV trolley is provided with a GPS positioning system for positioning and moving between preset positions in a factory. The material storage rack is installed on the AGV trolley. The material guide plate (1) is tiltedly arranged at the material discharge end of the material storage rack, and the bottom end of the material guide plate (1) corresponds to the top end of the fixed frame (3). The material pushing mechanism is arranged on the material storage rack and is used to push the seamless steel pipe on the material storage rack onto the material guide plate (1) for rolling.

3. The seamless steel pipe batch bundling rack for ball cage production according to claim 1, It is characterized in that The fixed frame (3) and the sliding frame (4) have the same structural form, including: A bottom plate (11), the bottom plate (11) is horizontally arranged above the base (2); A side plate (12), the side plate (12) is vertically arranged above the base (2), and the side plate (12) of the slide (4) is connected to the adjusting screw (6); An oblique support plate (13), the oblique support plate (13) is obliquely connected between the bottom plate (11) and the side plate (12), and the top ends of the oblique support plate (13) of the fixed frame (3) and the sliding frame (4) are away from each other; A reinforcing plate (14), wherein the reinforcing plate (14) is connected between the oblique supporting plate (13) and the side plate (12).

4. The rack for bundling seamless steel pipes in batches for ball cage production according to claim 3, It is characterized in that The top end of the side plate (12) is connected to a guide plate (15), the guide plate (15) is slidably connected to the guide groove at the top end of the fixed plate (5), a nut assembly threadedly connected to the adjusting screw (6) is provided on the fixed plate (5), and the end of the adjusting screw (6) is connected to a rotating rod (7).

5. The seamless steel pipe batch bundling rack for ball cage production according to claim 4, It is characterized in that A vibration-damping airbag is connected to the inclined surface of the oblique support plate (13).

6. The seamless steel pipe batch bundling rack for ball cage production according to claim 5, It is characterized in that The outer side of the fixing plate (5) is connected with a screw protection unit, and the screw protection unit comprises: A protective plate (21), the protective plate (21) is connected to the outside of the fixed plate (5), a through hole (22) for the adjusting screw (6) to pass through is provided at the center of the protective plate (21), and a nut groove (23) is provided on a side of the protective plate (21) away from the fixed plate (5); The nut block (24) is provided in four pieces, and the four nut blocks (24) are combined to form a complete nut, the adjusting screw rod (6) is threadedly connected to the combined complete nut, and a first spring (25) is connected between the nut block (24) and the side wall of the nut groove (23).

7. The seamless steel pipe batch bundling rack for ball cage production according to claim 6, It is characterized in that The screw protection unit also includes: A pressure sensing component (26), the pressure sensing component (26) is connected to the cavity of the protection plate (21), four pressure sensing components (26) are provided and correspond to the positions of the four nut blocks (24), and the pressure sensing component (26) is communicated with the vibration-damping airbag; A trigger block (27), the trigger block (27) is connected to the cavity of the protective plate (21), the trigger block (27) is arranged close to the center of the protective plate (21), and a gap is arranged between the trigger block (27) and the pressure sensing element (26), and the trigger block (27) is energized when it contacts the pressure sensing element (26); The electromagnetic ring (28) is circumferentially arranged at the center of the protection plate (21), and the electromagnetic ring (28) is connected to the trigger block (27).

8. The seamless steel pipe batch bundling rack for ball cage production according to claim 7, It is characterized in that The screw protection unit also includes: A limiting column (29), the limiting column (29) is slidably connected to the bottom of the nut groove (23) of the protection plate (21), one end of the limiting column (29) extends into the cavity of the protection plate (21), and the other end of the limiting column (29) abuts against the outer side of the nut block (24); A magnetic ring (31) is disposed in the cavity of the protective disk (21) and connected to the end of the limiting column (29). A second spring (32) is connected between the bottom of the magnetic ring (31) and the cavity of the protective disk (21). When the electromagnetic ring (28) is energized, it attracts the magnetic ring (31).

9. The seamless steel pipe batch bundling rack for ball cage production according to claim 8, It is characterized in that The screw protection unit also includes: A guide post (33), the guide post (33) being connected to a side of the protection plate (21) away from the fixing plate (5); A support plate (34), one end of the support plate (34) is slidably connected to the guide column (33), a third spring (35) is sleeved on the guide column (33), and two ends of the third spring (35) are respectively connected to the support plate (34) and the protective plate (21); A snap ring (36) is connected to the adjusting screw (6), and the snap ring (36) is connected to the other end of the support plate (34).

10. The rack for bundling seamless steel pipes in batches for ball cage production according to claim 7, It is characterized in that The pressure sensing element (26) comprises: a slider (37), a bellows (38) and an electrical connection block (39); the slider (37) is slidably connected in the cavity of the protective plate (21); the bellows (38) is connected between the slider (37) and the side wall of the cavity of the protective plate (21); the bellows (38) is connected to the vibration-damping airbag through a pipeline (44); and the electrical connection block (39) is connected to a side of the slider (37) close to the trigger block (27).

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