Telescopic pallet fork RGV

Abstract

The invention relates to a telescopic pallet fork RGV which comprises an RGV trolley and a track, the RGV trolley comprises a base plate and two driving boxes, the two driving boxes are arranged on the two sides of the base plate respectively, a telescopic pallet fork device and a yarn discharging device are arranged on the base plate, and the telescopic pallet fork device comprises two pallet fork bases; the two pallet fork bases are arranged on the two sides, in the length direction of the track, of the base plate correspondingly, each pallet fork base is slidably connected with a telescopic arm, the base plate is provided with a pallet fork driver for driving the telescopic arms to slidably stretch out and draw back along the pallet fork bases, the yarn discharging device comprises two yarn pushing plates, and the two yarn pushing plates are slidably arranged on two driving boxes correspondingly; each yarn pushing plate abuts against the end face of a yarn cylinder on the creel, and each driving box is provided with a driving assembly. The yarn feeding device has the effect of improving the yarn feeding efficiency.

Description

Technical Field

[0001] This application relates to the technical field of textile equipment, and particularly to a telescopic fork RGV. Background Art

[0002] Rail-guided vehicle (RGV), as the core equipment of the automated logistics system in the textile industry, undertakes the task of transferring yarn cones in the raw material transportation link. In the textile manufacturing process, the yarn cones wound with silk threads need to be transferred from the storage area to the warping machine, and the warp yarn forming is completed through the combined processing of warping and sizing.

[0003] However, the existing RGV carts usually only have the transportation function. When processing silk threads, first, workers need to carry the yarn rack with yarn cones onto the RGV cart. After the RGV cart is loaded, it will move along the track to the vicinity of the warping machine. Finally, workers will disassemble and transfer the multiple yarn cones on the yarn rack to the upper yarn rack of the warping machine. During the process of loading yarn onto the warping machine, the operations of manually carrying and disassembling the yarn cones will consume a lot of time, resulting in a low yarn loading efficiency of the warping machine, which has obvious deficiencies. Summary of the Invention

[0004] In order to improve the yarn loading efficiency, this application provides a telescopic fork RGV.

[0005] The telescopic fork RGV provided by this application adopts the following technical solutions: A telescopic fork RGV includes an RGV cart and a track. The RGV cart is slidably connected to the track. The RGV cart includes a base plate and a drive box. One drive box is provided on each side of the base plate. A telescopic fork device and a yarn unloading device are provided on the base plate; The telescopic fork device includes two fork bases. Two fork bases are provided on the base plate along the length direction of the track. A telescopic arm is slidably connected to each fork base. A fork drive for driving the telescopic arm to slide and extend along the fork base is provided on the base plate; The yarn unloading device includes a yarn pushing plate. One yarn pushing plate is slidably provided on each of the two drive boxes. Each yarn pushing plate abuts against the end face of the yarn cone on the yarn rack. A drive assembly is provided on each drive box. The drive assembly is used to drive the two yarn pushing plates to move along the direction of the fork base.

[0006] By adopting the above technical solution, when processing the silk thread, the forklift drives and controls the bilateral telescopic arms to extend synchronously along the length direction of the forklift base. After the telescopic arms are inserted into the bottom of the yarn rack, the forklift drives and controls the telescopic arms to retract. The telescopic arms transfer the yarn rack to the substrate. Subsequently, the RGV moves along the track to the vicinity of the warping machine. When the yarn rack on the RGV is aligned with the yarn rack on the warping machine, the driving assembly synchronously drives the pushing plates on both sides to advance along the width direction of the track. During the movement of the pushing plates, the yarn tubes arranged in columns on the yarn rack are pushed into the yarn rack on the warping machine at one time, and the yarn feeding operation is completed. Such a setting realizes the full-automatic operation of yarn rack handling and yarn tube disassembly, thus replacing manual handling and disassembly operations, improving the continuity of the yarn feeding process of the warping machine, and thereby increasing the yarn feeding efficiency of the warping machine.

[0007] Optionally, the driving assembly includes a first linear guide rail arranged on the driving box. The first linear guide rail is parallel to the forklift base. A bracket is slidably connected to the first linear guide rail. A connecting frame is arranged on the bracket. The pushing plate is detachably arranged on the connecting frame through bolts. A driving motor is arranged on the bracket. The output shaft of the driving motor is coaxially provided with a driving gear. A driving rack plate meshing with the driving gear is fixedly connected to the first linear guide rail. The driving rack plate is parallel to the length direction of the first linear guide rail.

[0008] By adopting the above technical solution, when the RGV moves to face the yarn rack on the warping machine, the driving motor starts to drive the driving gear to rotate. Since the driving rack plate is fixedly installed on the first linear guide rail, when the driving gear rotates, it will roll along the driving rack plate, thereby driving the bracket and the pushing plate to translate along the first linear guide rail. When the pushing plate moves, all the yarn tubes on the yarn rack are pushed onto the yarn feeding rack, thus realizing the automatic yarn feeding of the yarn tubes on the yarn rack. With the rigid guiding of the first linear guide rail and the stability of the gear-rack transmission, the positioning error caused by manual intervention is avoided.

[0009] Optionally, an adjusting assembly is arranged on each driving box. The adjusting assembly includes a second linear guide rail arranged on the connecting frame. The second linear guide rail is perpendicular to the first linear guide rail. The bracket is slidably matched with the second linear guide rail. An adjusting motor is arranged on the bracket. The output shaft of the adjusting motor is coaxially provided with an adjusting gear. An adjusting rack plate meshing with the adjusting gear is arranged on the connecting frame. A waist-shaped groove is formed on the connecting frame. The adjusting gear is located in the waist-shaped groove.

[0010] By adopting the above technical solution, the motor startup is adjusted to drive the adjusting gear to rotate. During the rotation of the adjusting gear, the adjusting rack plate is driven to move along the length direction of the second linear guide rail. The movement of the adjusting rack plate drives the connecting frame to move towards or away from the relative yarn pushing plate, thereby changing the distance between the two yarn pushing plates to match the transverse layout dimensions of different yarn racks or yarn bobbin arrays, ensuring the smooth progress of the yarn bobbin disassembly process.

[0011] Optionally, two sets of guiding components are arranged on the substrate along the length direction of the track. Each guiding component includes a mounting plate arranged on the substrate. The two mounting plates are arranged opposite to each other. A guiding frame is connected to the mounting plate, and the yarn rack is detachably connected to the guiding frame.

[0012] By adopting the above technical solution, during the transfer of the yarn rack, the guiding frames on both sides of the substrate conduct two-way guiding on the yarn rack, avoiding the position deviation of the yarn rack on the substrate caused by inertial offset or external disturbance. After the yarn rack is transferred onto the substrate, the guiding frame positions the substrate to prevent the yarn bobbins from toppling due to the skewing of the yarn rack caused by vibration during the movement of the RGV, thus ensuring the stability of the yarn rack during transportation and ensuring the precise docking of the yarn rack with the upper yarn rack.

[0013] Optionally, grooves are formed at the ends of the two mounting plates in the same guiding component that are away from each other. A connecting shaft is rotatably connected inside each groove. A blocking plate is arranged on the outer surface of the connecting shaft. A blocking motor is arranged on the outer surface of the mounting plate. The output shaft of the blocking motor is coaxially arranged with the connecting shaft. When the blocking plate is horizontal, the surface of the blocking plate is flush with the surface of the mounting plate.

[0014] By adopting the above technical solution, after the yarn rack is guided by the guiding frame and transferred onto the substrate, the four blocking motors are started synchronously. The blocking motors drive the multiple connecting shafts to rotate synchronously towards the direction of the guiding frame. The connecting shafts drive the blocking plates to rotate to the vertical state. At this time, the four blocking plates and the four guiding frames cooperate to achieve two-way blocking of the yarn rack, reducing the possibility of the yarn rack moving, and avoiding the yarn rack moving away from the substrate due to friction when the yarn pushing plate pushes the yarn bobbin, thus ensuring the smooth operation of the yarn bobbin disassembly process. After the yarn bobbins on the yarn rack are disassembled, the multiple blocking motors drive the multiple connecting shafts to reset. The connecting shafts drive the blocking plates to rotate to the horizontal state. At this time, the surface of the blocking plate is flush with the surface of the guiding frame, eliminating the physical interference of the blocking plate on the moving path of the yarn rack and ensuring the smooth operation of the yarn rack moving process.

[0015] Optionally, buffer air bags are provided on two opposite inner side walls of the guiding frame and on the surface of the blocking plate. A receiving cavity is formed inside the mounting plate, and an elastic air bag is arranged inside the receiving cavity. The elastic air bag is filled with gas. Each buffer air bag is communicated with the elastic air bag through an air delivery pipe. An extrusion assembly for extruding the elastic air bag is arranged inside the receiving cavity. When the plurality of buffer air bags are inflated and expanded, the end faces of the buffer air bags abut against the outer surface of the yarn rack.

[0016] By adopting the above technical solution, when the blocking plate rotates to the vertical state, the three buffer air bags expand synchronously and wrap the outer surface of the yarn rack, tightly filling the gap between the yarn rack and the guiding frame and the blocking plate, thereby effectively limiting the displacement amount of the yarn rack on the RGV trolley. It can ensure that when the yarn pushing plate pushes the yarn bobbin, the axis of the yarn bobbin is always accurately aligned with the axis of the upper yarn rack, avoiding the jamming or tilting and falling off of the yarn bobbin caused by the slight deviation of the yarn rack, thus ensuring the smooth operation of the yarn bobbin disassembly process.

[0017] Optionally, sliding grooves are formed on two opposite sides of the mounting plate, and both sliding grooves are communicated with the mounting cavity. The extrusion assembly includes an extrusion plate slidably connected inside the receiving cavity. The end of the connecting shaft extends into the sliding groove and is coaxially provided with a transmission gear. A transmission rack plate meshing with the transmission gear is slidably connected inside the sliding groove. The ends of the two transmission rack plates are arranged on the extrusion plate. When the blocking motor is not operating, the extrusion plate is arranged at the end of the mounting cavity close to the transmission gear, and the elastic air bag is in a natural state.

[0018] By adopting the above technical solution, when the blocking motor drives the connecting shaft to rotate from the horizontal state to the vertical state, the connecting shaft drives the transmission gear to rotate. The transmission gear drives the transmission rack plate to move towards the elastic air bag. The transmission rack plate drives the extrusion plate to extrude the elastic air bag. The gas in the elastic air bag is injected into the buffer air bag along the air delivery pipe, and the buffer air bag is inflated and expanded to tightly wrap the yarn rack. When the blocking motor drives the connection to rotate in the reverse direction, the transmission gear drives the transmission rack plate to reset. The transmission rack plate drives the extrusion plate to gradually move away from the elastic air bag. The elastic air bag expands in volume under its own elastic force, and the gas in the buffer air bag enters the elastic air bag along the air delivery pipe. The buffer air bag contracts to release the limiting effect on the yarn rack. Such a setting realizes the synchronous operation of the inflation and deflation process of the buffer air bag and the rotation action of the blocking plate, ensuring an effective buffer for the yarn rack when the blocking plate operates.

[0019] Optionally, a weight sensor is embedded in the inner bottom wall of the guiding frame, and the weight sensor is electrically connected to the blocking motor through a control system.

[0020] By adopting the above technical solution, the weight sensor is used to monitor the loading state of the yarn rack in real time. When the fully loaded yarn rack is transferred to the substrate by the telescopic forklift, the weight sensor receives the full-load signal and controls the blocking motor to drive the connecting shaft to rotate to the vertical state, so that the blocking plate accurately locks the position of the yarn rack. When the yarn cones are removed and the weight of the yarn rack drops below the threshold, the control system controls the blocking motor to rotate in the reverse direction, driving the blocking plate to reset to the storage state. Such a setting realizes the automatic operation of the blocking and limiting operation according to the full-load and no-load states of the yarn rack, without manual judgment, improving the automation degree of yarn feeding.

[0021] In summary, the present application includes at least one of the following beneficial technical effects: 1. By setting the telescopic forklift device and the yarn feeding device in the present application, when processing the silk thread, the forklift drives and controls the bilateral telescopic arms to synchronously extend along the length direction of the forklift base. After the telescopic arms are inserted into the bottom of the yarn rack, the forklift drives and controls the telescopic arms to retract. The telescopic arms transfer the yarn rack to the substrate, and then the RGV moves along the track to the vicinity of the warping machine. When the yarn rack on the RGV is aligned with the yarn rack on the warping machine, the driving component synchronously drives the two pushing yarn plates to advance along the width direction of the track. During the movement of the pushing yarn plates, the yarn cones arranged in columns on the yarn rack are pushed into the yarn rack on the warping machine at one time. After the yarn feeding operation is completed, the full-automatic operation of yarn rack handling and yarn cone removal is realized, thus replacing manual handling and disassembly operations, improving the continuity of the yarn feeding process of the warping machine, and thus improving the yarn feeding efficiency of the warping machine. 2. By setting the adjusting component in the present application, the adjusting motor starts to drive the adjusting gear to rotate. During the rotation of the adjusting gear, the adjusting rack plate is driven to move along the length direction of the second linear guide rail. The movement of the adjusting rack plate drives the connecting frame to move towards or away from the opposite pushing yarn plate, thereby realizing the change of the distance between the two pushing yarn plates to match the lateral layout dimensions of different yarn racks or yarn cone arrays, ensuring the smooth progress of the yarn cone removal process. 3. By setting the guiding frame, the blocking plate and the buffer air bags in the present application, when the blocking plate rotates to the vertical state, the three buffer air bags expand synchronously and wrap the outer surface of the yarn rack, tightly filling the gap between the yarn rack and the guiding frame and the blocking plate, thereby effectively restricting the displacement of the yarn rack on the RGV trolley, ensuring that when the pushing yarn plate pushes the yarn cone, the axis of the yarn cone is always accurately aligned with the axis of the upper yarn rack, avoiding the jamming or tilting and falling off of the yarn cone caused by the slight deviation of the yarn rack, and thus ensuring the smooth progress of the yarn cone removal process. Description of the Drawings

[0022] Figure 1 is the structural schematic diagram of the present application.

[0023] Figure 2 is the structural schematic diagram of the telescopic forklift device and the driving component in the embodiment of the present application.

[0024] Figure 3 It is a schematic structural diagram of a bracket and a connection frame in an embodiment of the present application.

[0025] Figure 4 It is a schematic structural diagram of an adjustment component in an embodiment of the present application.

[0026] Figure 5 It is a schematic structural diagram of a guiding component in an embodiment of the present application.

[0027] Figure 6 It is a schematic structural diagram of a mounting plate and a guiding frame in an embodiment of the present application.

[0028] Figure 7 It is a sectional view of a receiving cavity and a sliding groove in an embodiment of the present application.

[0029] Explanation of reference numerals: 01, track; 02, yarn rack; 021, support leg; 1, RGV vehicle; 101, base plate; 102, drive box; 2, telescopic fork device; 21, fork base; 22, telescopic arm; 23, fork drive; 3, guiding component; 31, mounting plate; 311, groove; 32, guiding frame; 4, lower yarn device; 41, yarn pushing plate; 42, drive component; 421, first linear guide rail; 422, bracket; 423, connection frame; 4231, waist-shaped groove; 424, drive motor; 425, drive gear; 426, drive rack plate; 5, adjustment component; 51, second linear guide rail; 52, adjustment motor; 53, adjustment gear; 54, adjustment rack plate; 6, connection shaft; 61, blocking plate; 62, blocking motor; 7, buffer airbag; 71, elastic airbag; 72, air supply pipe; 8, receiving cavity; 81, sliding groove; 9, extrusion component; 91, extrusion plate; 92, transmission gear; 93, transmission rack plate. Detailed implementation manners

[0030] The following further elaborates on the present application in conjunction with the attached Figure 1-7 for a more detailed description of the present application.

[0031] An embodiment of the present application discloses a telescopic fork RGV.

[0032] Referring to Figure 1 , a telescopic fork RGV includes an RGV vehicle 1 and a track 01. The track 01 is fixedly installed inside the yarn bobbin warehouse, and the RGV vehicle 1 is slidably connected to the track 01. The RGV vehicle 1 includes a base plate 101 and two drive boxes 102. The base plate 101 is in a frame form for supporting the yarn rack 02. The two drive boxes 102 are respectively fixedly installed on opposite sides of the base plate 101. Drive devices (not shown in the figure) for driving the movement of the RGV vehicle 1 are respectively installed inside the two drive boxes 102. By the drive devices, the RGV vehicle 1 is driven to move along the track 01, thereby realizing the transfer of the yarn rack 02 from the warehouse storage position to the warping machine upper yarn rack.

[0033] Refer to Figure 1 and Figure 2 On the substrate 101, a telescopic forklift device 2 is fixedly installed. The telescopic forklift device 2 includes two forklift bases 21 fixedly installed on the substrate 101. The two forklift bases 21 are parallel to each other and perpendicular to the length direction of the track 01. A telescopic arm 22 is slidably connected to the upper surface of each forklift base 21. A forklift drive 23 for driving the telescopic arm 22 to slide and extend along the length direction of the forklift base 21 is fixedly installed on the substrate 101. In this embodiment, the forklift drive 23 can be set as a rack and pinion mechanism or an electric cylinder mechanism. The two forklift bases 21 are arranged in a row on the substrate 101.

[0034] When processing the silk thread, the control system first controls the RGV cart 1 to move into the warehouse. When the RGV cart 1 moves to the position of the target yarn rack 02, the forklift drive 23 is started and controls the two telescopic arms 22 to horizontally extend synchronously along the length direction of the track 01 from the forklift bases 21. The telescopic arms 22 are inserted into the gaps at the bottom of the yarn rack 02. Subsequently, the forklift drive 23 acts in the reverse direction, driving the telescopic arms 22 to carry the yarn rack 02 and retract smoothly to the preset loading area of the substrate 101. After the fully loaded yarn rack 02 is loaded, the control system starts to control the RGV to move along the track 01 to the vicinity of the warping machine.

[0035] Refer to Figure 1 On both sides of the substrate 101 along the length direction of the track 01, a guiding component 3 is provided. The guiding component 3 includes two mounting plates 31 fixedly installed on the substrate 101. The two mounting plates 31 are arranged opposite to each other along the width direction of the track 01. A guiding frame 32 is fixedly installed on each mounting plate 31. The guiding frame 32 is a U-shaped frame. A supporting foot 021 slidably matched with the guiding frame 32 is fixedly installed at the bottom of each yarn rack 02. When the telescopic arm 22 retracts and resets, each supporting foot 021 is placed inside the guiding frame 32.

[0036] During the process of the telescopic arm 22 driving the yarn rack 02 to slide onto the substrate 101, the supporting feet 021 at the bottom of the yarn rack 02 slide into the U-shaped groove of the guiding frame 32 along the retraction trajectory of the telescopic arm 22. The movement trajectory of the yarn rack 02 is guided by the bilateral guiding frames 32. When the yarn rack 02 is transferred onto the substrate 101, the guiding frame 32 limits the substrate 101, preventing the yarn bobbin from toppling due to the skewing of the yarn rack 02 caused by vibration during the movement of the RGV, thereby ensuring the stability of the yarn rack 02 during transportation.

[0037] Refer to Figure 1 、 Figure 2 and Figure 3, a yarn feeding device 4 is provided on the RGV trolley 1. Specifically, the yarn feeding device 4 includes two yarn pushing plates 41. The two yarn pushing plates 41 are respectively slidably arranged on two driving boxes 102. Each yarn pushing plate 41 abuts against the end face of the yarn bobbin on the yarn rack 02. A driving component 42 is provided on each driving box 102. The driving component 42 includes a first linear guide rail 421 fixedly installed on the driving box 102. The first linear guide rail 421 is parallel to the width direction of the track 01. A bracket 422 is slidably connected to the first linear guide rail 421. A connecting frame 423 is slidably connected to the bracket 422. The yarn pushing plate 41 is detachably connected to the end face of the connecting frame 423 close to the base plate 101 by bolts. A driving motor 424 is fixedly installed on the outer surface of the bracket 422. The output shaft of the driving motor 424 is coaxially and fixedly connected with a driving gear 425. A driving rack plate 426 meshing with the driving gear 425 is fixedly connected to the first linear guide rail 421. The driving rack plate 426 is parallel to the length direction of the first linear guide rail 421.

[0038] Referring to Figure 2 , Figure 3 and Figure 4 , an adjusting component 5 is provided on each driving box 102. The adjusting component 5 includes a second linear guide rail 51 fixedly installed on the connecting frame 423. The second linear guide rail 51 is perpendicular to the first linear guide rail 421. The bracket 422 is slidably matched with the second linear guide rail 51. An adjusting motor 52 is fixedly installed on the bracket 422. The output shaft of the adjusting motor 52 is coaxially and fixedly connected with an adjusting gear 53. An adjusting rack plate 54 meshing with the adjusting gear 53 is fixedly connected to the connecting frame 423. The adjusting rack plate 54 is parallel to the second linear guide rail 51. A waist-shaped groove 4231 for the adjusting gear 53 to slide is formed in the connecting frame 423 along the length direction.

[0039] When the RGV cart 1 moves to align with the yarn rack on the warping machine, the adjustment motor 52 starts to drive the adjustment gear 53 to rotate. During the rotation of the adjustment gear 53, it drives the adjustment rack plate 54 to move along the length direction of the second linear guide 51. The movement of the adjustment rack plate 54 drives the connection frame 423 to move towards or away from the relative yarn pushing plate 41, thereby realizing the change of the distance between the two yarn pushing plates 41. When the two yarn pushing plates 41 move to abut against the end faces of the yarn bobbins on the yarn rack 02, the driving motor 424 starts to drive the driving gear 425 to rotate. Since the driving rack plate 426 is fixedly installed on the first linear guide 421, when the driving gear 425 rotates, it will roll along the driving rack plate 426, thereby driving the bracket 422 and the yarn pushing plate 41 to translate along the first linear guide 421. When the yarn pushing plate 41 moves, all the yarn bobbins on the yarn rack 02 are pushed onto the upper yarn rack, thus realizing the automatic yarn loading of the yarn bobbins on the yarn rack 02. Such a setting realizes the full-automatic operation of the handling of the yarn rack 02 and the disassembly of the yarn bobbins, thereby replacing manual handling and disassembly operations, improving the continuity of the yarn loading process on the warping machine, and thus increasing the yarn loading efficiency of the warping machine.

[0040] Referring to Figure 1 and Figure 5 , grooves 311 are provided at the ends of the two mounting plates 31 in the same guiding assembly 3 that are away from each other. At the end of each groove 311 close to the guiding frame 32, a connecting shaft 6 is rotatably connected. A blocking plate 61 is fixedly installed on the outer surface of the connecting shaft 6. A blocking motor 62 is fixedly installed on the outer surface of each mounting plate 31. The output shaft of the blocking motor 62 is fixedly connected to the connecting shaft 6 coaxially. When the blocking plate 61 is horizontal, the surface of the blocking plate 61 is flush with the surface of the guiding frame 32.

[0041] Referring to Figure 5 , a weight sensor (not shown in the figure) is fixedly embedded in the inner bottom wall of each guiding frame 32. The weight sensor is used to detect the full-load and no-load states of the yarn rack 02. The weight sensor is electrically connected to the blocking motor 62 through the control system.

[0042] When the fully-loaded yarn rack 02 moves onto the substrate 101, the support feet 021 of the yarn rack 02 abut against the inner bottom wall of the guiding frame 32. The weight sensor detects the full-load information and controls the blocking motor 62 to start. The four blocking motors 62 simultaneously drive the connecting shaft 6 to rotate towards the guiding frame 32. The connecting shaft 6 drives the blocking plate 61 to rotate to the vertical state. At this time, the four blocking plates 61 and the four guiding frames 32 cooperate to realize the two-way blocking of the yarn rack 02, avoiding the movement of the yarn rack 02 away from the substrate 101 due to friction when the yarn pushing plate 41 pushes the yarn bobbins, thereby ensuring the smooth operation of the yarn bobbin disassembly process; After the yarn pushing plate 41 pushes all the yarn bobbins on the yarn rack 02 onto the upper yarn rack, the weight sensor detects an empty load signal and controls the blocking motor 62 to run in the reverse direction. At this time, the connecting shaft 6 drives the blocking plate 61 to rotate to a horizontal state, and the surface of the blocking plate 61 is flush with the surface of the guiding frame 32, eliminating the physical interference of the blocking plate 61 on the moving path of the yarn rack 02 and ensuring the smooth operation of the yarn rack 02 during the moving process.

[0043] Refer to Figure 6 and Figure 7 , buffer air bags 7 are fixedly connected to the opposite end faces of each guiding frame 32 and the surface of the blocking plate 61. A receiving cavity 8 is formed inside each mounting plate 31. An elastic air bag 71 is fixedly connected to the end face of the receiving cavity 8 on the side away from the connecting shaft 6. In this embodiment, the elastic air bag 71 is made of rubber material, and the inside of the elastic air bag 71 is filled with gas. Each buffer air bag 7 is communicated with the elastic air bag 71 through an air supply pipe 72.

[0044] Refer to Figure 6 and Figure 7 , an extrusion assembly 9 is arranged inside each receiving cavity 8. The extrusion assembly 9 includes an extrusion plate 91 slidably connected inside the receiving cavity 8. Sliding grooves 81 are formed on the opposite sides of each mounting plate 31. The sliding grooves 81 are parallel to the width direction of the track 01. Both sliding grooves 81 are communicated with the mounting cavity. The opposite ends of the connecting shaft 6 extend into the sliding grooves 81 and are coaxially and fixedly connected with transmission gears 92. A transmission rack plate 93 meshing with the transmission gear 92 is slidably connected in each sliding groove 81. The ends of both transmission rack plates 93 are fixedly connected to the extrusion plate 91. When the blocking motor 62 is not running, the extrusion plate 91 is arranged at the end of the mounting cavity close to the transmission gear 92, and the elastic air bag 71 is in a natural state. When the buffer air bag 7 is inflated and expanded, the end face of the buffer air bag 7 abuts against the outer surface of the support foot 021 of the yarn rack 02.

[0045] When the weight sensor detects a full load signal and controls the blocking motor 62 to run forward, the connecting shaft 6 drives the transmission gear 92 to rotate forward. The transmission gear 92 drives the transmission rack plate 93 to move towards the elastic air bag 71. The transmission rack plate 93 drives the extrusion plate 91 to extrude the elastic air bag 71. The gas in the elastic air bag 71 is injected into the buffer air bag 7 along the air supply pipe 72. The three buffer air bags 7 expand synchronously and wrap the outer surface of the yarn rack 02, tightly filling the gap between the yarn rack 02 and the guiding frame 32 and the blocking plate 61, thereby effectively restricting the displacement of the yarn rack 02 on the RGV cart 1. It can ensure that when the yarn pushing plate 41 pushes the yarn bobbin, the axis of the yarn bobbin is always precisely aligned with the axis of the upper yarn rack, avoiding the jamming or tilting and falling off of the yarn bobbin caused by the slight deviation of the yarn rack 02, thus ensuring the smooth operation of the yarn bobbin disassembly process; After all the yarn bobbins on the yarn rack 02 are unloaded, the weight sensor detects the no-load signal and controls the drive motor 424 to run in reverse. The transmission gear 92 drives the transmission rack plate 93 to reset. The transmission rack plate 93 drives the pressing plate 91 to gradually move away from the elastic airbag 71. The elastic airbag 71 expands in volume under its own elastic force. The gas in the buffer airbag 7 enters the elastic airbag 71 along the air supply pipe 72. The buffer airbag 7 contracts, thereby releasing the limiting effect on the yarn rack 02. Such a setting realizes the synchronous operation of the inflation and deflation process of the buffer airbag 7 and the rotation action of the blocking plate 61, ensuring an effective buffer for the yarn rack 02 when the blocking plate 61 operates.

[0046] The implementation principle of a telescopic fork RGV in an embodiment of the present application is as follows: When processing silk threads, the control system first controls the RGV cart 1 to move into the warehouse. After the RGV cart 1 moves to the position of the target yarn rack 02, the fork drive 23 is activated and controls the two telescopic arms 22 to horizontally extend synchronously along the length direction of the track 01 from the fork base 21. The telescopic arms 22 are inserted into the gap at the bottom of the yarn rack 02. Subsequently, the fork drive 23 acts in reverse, driving the telescopic arms 22 to carry the yarn rack 02 back to the preset loading area of the base plate 101 smoothly. After the fully loaded yarn rack 02 is loaded, the control system starts to control the RGV to move along the track 01 to the vicinity of the warping machine; When the RGV cart 1 moves to face the yarn rack on the warping machine, the adjustment motor 52 is activated to drive the adjustment gear 53 to rotate. During the rotation of the adjustment gear 53, it drives the adjustment rack plate 54 to move along the length direction of the second linear guide 51. The movement of the adjustment rack plate 54 drives the connection frame 423 to move towards or away from the opposite pushing yarn plates 41, thereby changing the distance between the two pushing yarn plates 41. When the two pushing yarn plates 41 move to abut against the end faces of the yarn bobbins on the yarn rack 02, the drive motor 424 is activated to drive the drive gear 425 to rotate. Since the drive rack plate 426 is fixedly installed on the first linear guide 421, the drive gear 425 will roll along the drive rack plate 426 when rotating, thereby driving the bracket 422 and the pushing yarn plates 41 to translate along the first linear guide 421. When the pushing yarn plates 41 move, all the yarn bobbins on the yarn rack 02 are pushed onto the upper yarn rack. In this way, the automatic yarn loading of the yarn rack 02 is realized. Such a setting realizes the full-automatic operation of the handling of the yarn rack 02 and the disassembly of the yarn bobbins, thereby replacing manual handling and disassembly operations, improving the continuity of the yarn loading process on the warping machine, and thus increasing the yarn loading efficiency of the warping machine.

[0047] The above are all preferred embodiments of the present application. The protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A telescopic forklift RGV, comprising an RGV trolley (1) and a track (01), wherein the RGV trolley (1) is slidably connected to the track (01), the RGV trolley (1) includes a base plate (101) and a drive box (102), and one drive box (102) is provided on each side of the base plate (101), characterized in that, A telescopic fork device (2) and a yarn feeding device (4) are arranged on the substrate (101). The telescopic fork device (2) includes two fork bases (21). The two fork bases (21) are arranged along the length direction of the track (01) on the substrate (101). A telescopic arm (22) is slidably connected to each fork base (21). A fork drive (23) for driving the telescopic arm (22) to slide and expand along the fork base (21) is arranged on the substrate (101). The yarn feeding device (4) includes a yarn pushing plate (41). One yarn pushing plate (41) is slidably arranged on each of the two drive boxes (102). Each yarn pushing plate (41) abuts against the end face of the yarn bobbin on the yarn rack (02). A drive assembly (42) is arranged on each drive box (102). The drive assembly (42) is used for driving the two yarn pushing plates (41) to move along the direction of the fork base (21).

2. The telescopic fork RGV according to claim 1, wherein The drive assembly (42) includes a first linear guide rail (421) arranged on the drive box (102). The first linear guide rail (421) is parallel to the fork base (21). A bracket (422) is slidably connected to the first linear guide rail (421). A connecting frame (423) is arranged on the bracket (422). The yarn pushing plate (41) is detachably arranged on the connecting frame (423) by bolts. A drive motor (424) is arranged on the bracket (422). A drive gear (425) is coaxially arranged on the output shaft of the drive motor (424). A drive rack plate (426) meshing with the drive gear (425) is fixedly connected to the first linear guide rail (421). The drive rack plate (426) is parallel to the length direction of the first linear guide rail (421).

3. The telescopic fork RGV according to claim 2, characterized in that, An adjusting assembly (5) is arranged on each drive box (102). The adjusting assembly (5) includes a second linear guide rail (51) arranged on the connecting frame (423). The second linear guide rail (51) is perpendicular to the first linear guide rail (421). The bracket (422) is slidably matched with the second linear guide rail (51). An adjusting motor (52) is arranged on the bracket (422). An adjusting gear (53) is coaxially arranged on the output shaft of the adjusting motor (52). An adjusting rack plate (54) meshing with the adjusting gear (53) is arranged on the connecting frame (423). A waist-shaped slot (4231) is formed in the connecting frame (423). The adjusting gear (53) is located in the waist-shaped slot (4231).

4. A telescopic fork RGV according to claim 1, characterized in that, Two groups of guiding assemblies (3) are arranged on the substrate (101) along the length direction of the track (01). The guiding assembly (3) includes a mounting plate (31) arranged on the substrate (101). The two mounting plates (31) are arranged oppositely. A guiding frame (32) is connected to the mounting plate (31). The yarn rack (02) is detachably connected to the guiding frame (32).

5. A telescopic forklift RGV according to claim 4, characterized in that, Grooves (311) are provided at the ends of the two mounting plates (31) in the same guiding assembly (3) that are away from each other. A connecting shaft (6) is rotatably connected inside each groove (311). A blocking plate (61) is provided on the outer surface of the connecting shaft (6). A blocking motor (62) is provided on the outer surface of the mounting plate (31). The output shaft of the blocking motor (62) is coaxially arranged with the connecting shaft (6). When the blocking plate (61) is horizontal, the surface of the blocking plate (61) is flush with the surface of the mounting plate (31).

6. The telescopic fork RGV according to claim 5, wherein, Buffer air bags (7) are provided on the opposite inner side walls of the guiding frame (32) and the surface of the blocking plate (61). A receiving cavity (8) is provided inside the mounting plate (31). An elastic air bag (71) is provided inside the receiving cavity (8). The elastic air bag (71) is filled with gas. Each buffer air bag (7) is communicated with the elastic air bag (71) through an air delivery pipe (72). An extrusion assembly (9) for extruding the elastic air bag (71) is provided inside the receiving cavity (8). When the plurality of buffer air bags (7) are inflated, the end surface of the buffer air bag (7) abuts against the outer surface of the yarn rack (02).

7. A telescopic forklift RGV according to claim 6, characterized in that, Sliding grooves (81) are provided on both opposite sides of the mounting plate (31). Both of the two sliding grooves (81) are communicated with the mounting cavity. The extrusion assembly (9) includes an extrusion plate (91) slidably connected inside the receiving cavity (8). The end of the connecting shaft (6) extends into the sliding groove (81) and is coaxially provided with a transmission gear (92). A transmission rack plate (93) meshing with the transmission gear (92) is slidably connected inside the sliding groove (81). The ends of both of the two transmission rack plates (93) are arranged on the extrusion plate (91). When the blocking motor (62) is not operating, the extrusion plate (91) is arranged at the end of the mounting cavity close to the transmission gear (92), and the elastic air bag (71) is in a natural state.

8. A telescopic fork RGV according to claim 5, characterized in that, A weight sensor is embedded in the inner bottom wall of the guiding frame (32). The weight sensor is electrically connected to the blocking motor (62) through a control system.

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