A yarn spool storage device

Abstract

This disclosure provides a yarn spindle storage device, including: a stand fixed on a base and erected on the ground; and a storage assembly for placing yarn spindles. When storing yarn spindles, a support plate containing the yarn spindles is pushed into the storage device along the base plate. A stepper motor drives a chain to rotate, causing a support roller to move. The support roller pushes a limiting block upward, thereby raising the support plate until it aligns with a horizontal bar at a specified height. A position sensor detects that the support plate is in place, and an electromagnet is energized to attract the limiting block. The limiting pin moves and engages in the limiting hole, thus fixing the support plate on the stand. This process is repeated, with multiple support plates placed equidistantly from top to bottom. Since there is no limitation from palletizing equipment, the spacing between multiple storage devices can be minimized, and the storage height can be maximized, thereby greatly increasing the storage capacity of the yarn spindle warehouse.

Description

Technical Field

[0001] This specification relates to the field of yarn spindle storage technology, and in particular to a yarn spindle storage device. Background Technology

[0002] Yarn spindles are products where yarn is wound onto spindles. With the development of automated factories, the production capacity of yarn spindles has continued to increase, thus requiring yarn warehouses to store them. Currently, there are two main methods for storing yarn spindles. One method involves stacking yarn spindles layer by layer, and after reaching a certain height, wrapping them with film before storing them in the warehouse. However, this method has limited stacking height due to the lack of partitions between adjacent layers of yarn spindles, resulting in extremely low warehouse volume utilization. The other method involves placing yarn spindles on partitions first, and then stacking them on shelves using palletizing equipment. However, because palletizing equipment requires a large operating space, the spacing between shelves is relatively large, affecting warehouse volume utilization. Furthermore, the limited stacking height of the palletizing equipment further exacerbates the insufficient utilization of yarn spindle warehouse volume. Summary of the Invention

[0003] This specification provides one or more embodiments of a yarn spindle storage device, characterized in that it includes: The stand is fixed to the base and erected upright on the ground; A storage assembly for placing yarn spindles includes a support plate and a plurality of limiting components disposed therein. The limiting components include a limiting block and a limiting pin. The limiting block is slidably disposed within the support plate, and the limiting pin is fixed to the limiting block and can extend out of the support plate as the limiting block slides. The lifting assembly includes multiple components that are vertically fixed to the frame and correspond to the limiting components. The lifting assembly includes a frame plate and multiple support rollers. The multiple support rollers move periodically on the frame plate through a transmission component in a flexible transmission manner. The support rollers are used to lift the limiting block, so that the supporting plate moves upward. When the supporting plate moves to the designated position, the limiting block slides horizontally until it disengages from the support rollers and does not coincide with the movement path of the support rollers. At the same time, the limiting pin is locked on the frame and remains stable. A further technical solution is that the stand includes two supports, which are symmetrically arranged on both sides of the storage component. Each support consists of two vertically arranged uprights and multiple horizontally arranged horizontal bars. The multiple horizontal bars are equidistantly distributed vertically and fixed between the two uprights. Limiting holes are provided at both ends of each horizontal bar, and the limiting pins can be embedded in the limiting holes. The spacing between two adjacent support rollers is the same as the spacing between two adjacent horizontal bars.

[0004] A further technical solution involves providing two electromagnets corresponding to the limiting holes inside the horizontal rod. Multiple connecting short rods corresponding to the horizontal rod are fixed between the bracket and the support plate. A position sensor is fixed on each connecting short rod. The position sensor detects the position of the support plate. When the position sensor detects that the support plate is in place, the electromagnet at the same height as the position sensor is energized to attract the limiting block, causing it to slide closer to the horizontal rod. The limiting pin then engages with the limiting hole.

[0005] In a further technical solution, multiple connecting rods are provided between the two supports. The connecting rods are symmetrically arranged on both sides of the storage assembly. The two ends of the connecting rods are fixedly connected to the two shelf plates respectively. Inclined diagonal rods are fixed between adjacent horizontal rods.

[0006] In a further technical solution, the support plate is formed by bending an aluminum alloy sheet into a hollow plate shape. The upper side wall of the support plate has multiple evenly distributed and downwardly recessed cavities. The cavities are used to place the central shaft protrusion on the yarn spindle. The support plate is fixed with cross-arranged reinforcing ribs. The limiting components are configured as four and are respectively set at the four corners of the support plate.

[0007] A further technical solution includes a first notch on the support plate corresponding to the limiting component, through which the movement trajectory of the support roller passes. A vertical through-slot with its opening facing the chain is provided on the limiting block. Slide grooves parallel to the sliding direction are provided on both the upper and lower sides of the limiting block. Guide strips corresponding to and slidably connected to the slide grooves are fixed to the upper and lower side walls of the support plate. A spring is fixed between the limiting block and the side wall of the support plate. A circular hole corresponding to the limiting pin is provided on the side wall of the support plate, with the axis of the circular hole coinciding with the axis of the limiting pin. A pin sleeve fitted onto the limiting pin is fixed on the side wall of the support plate. When the spring is relaxed, the through-slot is misaligned with the first notch; when the spring is contracted, the through-slot aligns with the first notch.

[0008] In a further technical solution, the transmission component includes a chain and two sprockets. The two sprockets are rotatably connected to the upper and lower ends of the frame plate, respectively. The frame plate has a guide groove that is consistent with the movement trajectory of the support roller. The chain is operatively connected to the two sprockets and is located in the guide groove. The support roller is mounted on the chain link through a roller seat and is rotatably connected to the roller seat. The axis of the support roller is perpendicular to the sliding direction of the limiting block. Two drive shafts are provided between two shelves on the same side of the storage assembly. The two ends of the drive shafts are fixedly connected to two sprockets respectively. A stepper motor is fixed at the lower end of the shelf, and the drive shafts are fixedly connected to the output shaft of the stepper motor.

[0009] A further technical solution is that a loading platform is installed at the lower end of the upright frame. The loading platform includes a base plate and a positioning rod. The positioning rod is fixed on one side of the support and is located directly below the lowest horizontal rod. The base plate is fixed on the upright frame. A second notch corresponding to the lifting component is opened on the base plate. The movement trajectory of the support roller passes through the second notch. The upper surface of the base plate is flush with the lower surface of the positioning rod. Two symmetrically arranged positioning plates are vertically fixed on the upper surface of the base plate. The two positioning plates are located on both sides of the support plate. The two positioning plates cooperate with the positioning rod to achieve positioning of the support plate before lifting.

[0010] In a further technical solution, the loading platform also includes two symmetrically arranged guide belts. The guide belts are fixed to the other side bracket and are positioned opposite to the positioning rod. A photoelectric switch is fixed on the base plate between the two guide belts. The distance between the photoelectric switch and the positioning rod is the same as the length of the loading plate. The photoelectric switch is used to detect whether the loading plate abuts against the positioning rod. The two guide belts are arranged in a trumpet shape. Beneficial effects

[0011] 1. The present invention places the yarn spindle on a support plate, and the cavity is used to accommodate the protruding part of the central axis of the yarn spindle, so that the yarn spindle can be stably placed on the support plate.

[0012] 2. When storing yarn spindles, the support plate containing the yarn spindles is pushed into the storage device along the bottom plate. When the support plate abuts against the positioning rod, the limiting block aligns with the chain. The stepper motor drives the chain to rotate, causing the support roller to move. The support roller pushes the limiting block upward, thereby lifting the support plate upward until it aligns with the horizontal bar at the specified height. When the position sensor detects that the support plate is in place, the electromagnet is energized to attract the limiting block, and the limiting pin moves and engages in the limiting hole, thus fixing the support plate on the stand. This process is repeated, with multiple support plates placed at equal intervals from top to bottom. Since there are no restrictions from palletizing equipment, the distance between multiple storage devices can be minimized, and the storage height can be maximized, thereby greatly increasing the storage capacity of the yarn spindle warehouse. Attached Figure Description

[0013] This specification will be further described by way of exemplary embodiments, which will be described in detail with reference to the accompanying drawings. The same numbers in the drawings denote the same structures or steps.

[0014] Figure 1 This is a schematic diagram of the structure of a yarn spindle storage device according to some embodiments of this specification.

[0015] Figure 2 This is based on some embodiments shown in this specification. Figure 1Enlarged diagram of point A in the diagram.

[0016] Figure 3 This is based on some embodiments shown in this specification. Figure 1 Enlarged diagram of point B in the image.

[0017] Figure 4 This is a cross-sectional view of a horizontal bar in a yarn spindle storage device according to some embodiments of this specification.

[0018] Figure 5 This is a schematic diagram of the structure of the upright frame and lifting assembly in a yarn spindle storage device according to some embodiments of this specification.

[0019] Figure 6 This is based on some embodiments shown in this specification. Figure 5 Enlarged diagram of point C in the image.

[0020] Figure 7 This is a schematic diagram showing the relative positions of the transmission component and the limiting component in a yarn spindle storage device according to some embodiments of this specification.

[0021] Figure 8 This is based on some embodiments shown in this specification. Figure 7 Enlarged diagram of point D in the diagram.

[0022] Figure 9 This is a schematic diagram of the structure of a storage component in a yarn spindle storage device according to some embodiments of this specification.

[0023] Figure 10 This is a partial cross-sectional view of a storage component in a yarn spindle storage device according to some embodiments of this specification.

[0024] Figure 11 This is a schematic diagram of the reinforcing ribs in a yarn spindle storage device according to some embodiments of this specification.

[0025] Figure 12 This is a cross-sectional view of a limiting component in a yarn spindle storage device according to some embodiments of this specification. In the picture: 1. Frame; 10. Upright; 11. Rib; 12. Position sensor; 13. Horizontal bar; 14. Limiting hole; 15. Connecting short rod; 16. Electromagnet; 2. Lifting assembly; 20. Shelf plate; 21. Stepper motor; 22. Chain; 23. Guide groove; 24. Roller seat; 25. Support roller; 26. Sprocket; 27. Diagonal bar; 28. Drive shaft; 3. Storage assembly; 30. Support plate; 31. First notch; 32. Limiting block; 35. Through groove; 36. Spring; 37. Limiting pin; 38. Pin sleeve; 39. Cavity; 310. Reinforcing rib; 311. Guide strip; 40. Base; 50. Guide belt; 51. Positioning rod; 52. Base plate; 53. Positioning plate; 54. Second notch; 55. Photoelectric switch; 60. Connecting long rod. Detailed Implementation

[0026] To more clearly illustrate the technical solutions of the embodiments in this specification, the embodiments will be described in detail below with reference to the accompanying drawings. Obviously, the content described below are some examples or embodiments of this specification. For those skilled in the art, without creative effort, the technical solutions or means disclosed in this specification can be applied to other scenarios based on this technical content.

[0027] It should be understood that the terms "system," "device," "unit," and / or "module" used in this specification are a method of distinguishing different components, elements, parts, sections, or assemblies at different levels. However, if other terms can achieve the same purpose, they may be replaced by other expressions.

[0028] Unless otherwise specified, the technical terms used to describe components, elements, etc. in this specification are not singular but may include plural. Generally speaking, terms such as "comprising" or "including" only indicate that explicitly identified steps, elements, or components are included, and these steps, elements, and components do not constitute an exclusive list, as the described method or apparatus may also include other steps or components.

[0029] This specification uses flowcharts to illustrate the operational steps performed by the apparatus or system of related embodiments. However, unless otherwise specified, the order in which these steps are described should not be construed as a limitation on the order of execution. Those skilled in the art can adjust the order of these steps based on the knowledge and information conveyed by the embodiments in this specification. Such adjustments include, but are not limited to, reversing the order of steps, merging multiple steps, and splitting a step.

[0030] Yarn spindles are products where yarn is wound onto spindles. With the development of automated factories, the production capacity of yarn spindles has continued to increase, thus requiring yarn warehouses to store them. Currently, there are two main methods for storing yarn spindles. One method involves stacking yarn spindles layer by layer, and after reaching a certain height, wrapping them with film before storing them in the warehouse. However, this method has limited stacking height due to the lack of partitions between adjacent layers of yarn spindles, resulting in extremely low warehouse volume utilization. The other method involves placing yarn spindles on partitions first, and then stacking them on shelves using palletizing equipment. However, because palletizing equipment requires a large operating space, the spacing between shelves is relatively large, affecting warehouse volume utilization. Furthermore, the limited stacking height of the palletizing equipment further exacerbates the insufficient utilization of yarn spindle warehouse volume.

[0031] Therefore, it is necessary to design a yarn spindle storage device that can achieve high-height stacking operations without using palletizing equipment, thereby maximizing the utilization rate of the yarn spindle warehouse storage volume.

[0032] Therefore, some embodiments of this specification propose a yarn spindle storage device, characterized in that, referring to Figure 1 The yarn spindle storage device includes: Reference Figure 1 , Figure 5 The stand 1 shown is fixed on the base 40 and is erected on the ground. Reference Figures 9-12 As shown, the storage component 3 is used to place yarn spindles. The storage component 3 includes a support plate 30 and a plurality of limiting components disposed therein. The limiting components include a limiting block 32 and a limiting pin 37. The limiting block 32 is made of ferromagnetic metal and is slidably disposed inside the support plate 30. The limiting pin 37 is fixed to the limiting block 32 and can extend out of the support plate 30 as the limiting block 32 slides. Reference Figure 1 , Figure 2 , Figure 7 , Figure 8 The lifting assembly 2 is provided with multiple components that are vertically fixed on the stand 1 and correspond to the limiting components. The lifting assembly 2 includes a frame plate 20 and multiple support rollers 25. The multiple support rollers 25 move periodically on the frame plate 20 through a transmission component in a flexible transmission manner. The support rollers 25 are used to lift the limiting block 32, so that the support plate 30 moves upward. When the support plate 30 moves to the designated position, the limiting block 32 slides horizontally until it disengages from the support rollers 25 and does not coincide with the movement path of the support rollers 25. At the same time, the limiting pin 37 is locked on the stand 1 and remains stable. Specifically, refer to Figures 1-3The support frame 1 includes two supports, which are symmetrically arranged on both sides of the storage component 3. The support consists of two vertically arranged uprights 10 and multiple horizontally arranged horizontal bars 13. The lower ends of the uprights 10 are welded and fixed to the base 40. Multiple ribs 11 are welded between the uprights 10 and the base 40. The multiple horizontal bars 13 are distributed vertically at equal intervals and fixed between the two uprights 10. Limiting holes 14 are opened at both ends of the horizontal bars 13, and limiting pins 37 can be inserted into the limiting holes 14. The spacing between two adjacent support rollers 25 is the same as the spacing between two adjacent horizontal bars 13.

[0033] Specifically, refer to Figures 1-4 Two electromagnets 16 corresponding to the limiting holes 14 are provided inside the horizontal rod 13. Multiple connecting short rods 15 corresponding to the horizontal rod 13 are fixed between the bracket and the frame plate 20. A position sensor 12 is fixed on the connecting short rod 15. The position sensor 12 is used to detect the position of the support plate 30. When the position sensor 12 detects that the support plate 30 is in place, the electromagnet 16 at the same height as the position sensor 12 is energized to attract the limiting block 32, causing it to slide towards the horizontal rod 13. Then the limiting pin 37 is inserted into the limiting hole 14.

[0034] Specifically, refer to Figure 5 Multiple connecting rods 60 are provided between the two supports. The connecting rods 60 are symmetrically arranged on both sides of the storage component 3. The two ends of the connecting rods 60 are fixedly connected to the two shelf plates 20 respectively. Inclined diagonal rods 27 are fixed between adjacent horizontal rods 13.

[0035] Specifically, refer to Figure 9 The support plate 30 is formed by bending aluminum alloy sheet into a hollow plate shape. The upper side wall of the support plate 30 has multiple evenly distributed and downwardly recessed cavities 39, which are used to place the central shaft protrusion on the yarn spindle. The support plate 30 is fixed with cross-arranged reinforcing ribs 310. The limiting components are configured as four and are respectively set at the four corners of the support plate 30.

[0036] To prevent the support plate 30 from tilting due to uneven loading during the lifting process, a level verification logic is added to the control program of this device. During the lifting process, four position sensors 12 (or four additional microswitches) located at the four corners of the support plate 30 monitor the height signals of the four corners of the support plate 30 in real time. If the PLC does not receive the position signals of the four corners simultaneously within a preset time window (e.g., 0.5 seconds), it determines that the support plate 30 has tilted, and the PLC immediately stops the stepper motor 21 and issues an alarm, prompting the operator to adjust the placement position of the yarn spindle.

[0037] Specifically, refer to Figure 8 , Figure 9The support plate 30 has a first notch 31 corresponding to the limiting component. The movement trajectory of the support roller 25 passes through the first notch 31. The limiting block 32 has a vertical through groove 35 with its opening facing the chain 22. The upper and lower sides of the limiting block 32 have sliding grooves parallel to its sliding direction. The upper and lower side walls of the support plate 30 are fixed with guide strips 311 corresponding to and slidably connected to the sliding grooves. A spring 36 is fixed between the limiting block 32 and the side wall of the support plate 30. The side wall of the support plate 30 has a round hole corresponding to the limiting pin 37. The axis of the round hole coincides with the axis of the limiting pin 37. A pin sleeve 38 is fixed on the side wall of the support plate 30 and sleeved on the limiting pin 37. When the spring 36 is in the relaxed state, the through groove 35 is offset from the first notch 31. When the spring 36 is contracted, the through groove 35 is aligned with the first notch 31.

[0038] Specifically, refer to Figure 1 , Figure 2 , Figure 7 , Figure 8 The transmission components include a chain 22 and two sprockets 26. The two sprockets 26 are rotatably connected to the upper and lower ends of the frame plate 20, respectively. The frame plate 20 has a guide groove 23 that is consistent with the movement trajectory of the support roller 25. The chain 22 is connected to the two sprockets 26 and is located in the guide groove 23. The support roller 25 is mounted on the chain link of the chain 22 through the roller seat 24. The support roller 25 is rotatably connected to the roller seat 24. The axis of the support roller 25 is perpendicular to the sliding direction of the limit block 32. Two drive shafts 28 are provided between two shelf plates 20 on the same side of the storage component 3. The two ends of the drive shafts 28 are fixedly connected to two sprockets 26 respectively. A stepper motor 21 is fixed at the lower end of the shelf plate 20, and the drive shafts 28 are fixedly connected to the output shaft of the stepper motor 21.

[0039] Specifically, refer to Figure 5 , Figure 6 The lower end of the upright frame 1 is equipped with a loading platform, which includes a base plate 52 and a positioning rod 51. The positioning rod 51 is fixed on one side of the bracket and is located directly below the lowest horizontal rod 13. The base plate 52 is fixed on the upright frame 1. The base plate 52 has a second notch 54 corresponding to the lifting component 2. The movement trajectory of the support roller 25 passes through the second notch 54. The upper end face of the base plate 52 is flush with the lower end face of the positioning rod 51. Two symmetrically arranged positioning plates 53 are vertically fixed on the upper end face of the base plate 52. The two positioning plates 53 are located on both sides of the support plate 30. The two positioning plates 53 cooperate with the positioning rod 51 to achieve the positioning of the support plate 30 before lifting.

[0040] Specifically, the loading platform also includes two symmetrically arranged guide belts 50. The guide belts 50 are fixed on the other side bracket and are positioned opposite to the positioning rod 51. A photoelectric switch 55 is fixed on the base plate 52 between the two guide belts 50. The distance between the photoelectric switch 55 and the positioning rod 51 is the same as the length of the support plate 30. The photoelectric switch 55 is used to detect whether the support plate 30 is in contact with the positioning rod 51. The two guide belts 50 are arranged in a trumpet shape.

[0041] In this embodiment, the control unit is preferably a programmable logic controller (PLC).

[0042] The photoelectric switch 55 uses a diffuse reflection photoelectric sensor, preferably an Omron E3Z-LT61. This sensor is configured in normally open (NO) mode, meaning it outputs a high level (24V DC) when it detects the support plate 30. Its control logic is not directly used as a position signal, but rather implemented through PLC internal programming to achieve a "falling edge triggered single pulse" function. Specifically, when the support plate 30 is pushed into the photoelectric switch 55, the PLC input point I0.0 is energized (logic "1"); when the support plate 30 continues to move forward until it abuts against the positioning rod 51 and leaves the detection range of the photoelectric switch 55, the PLC input point I0.0 is de-energized (logic "0"). The PLC captures this falling edge from "1" to "0" and generates a pulse signal with a width of 300ms to trigger the stepper motor 21 to start.

[0043] To ensure reliable triggering, the falling edge signal must last for at least 50 milliseconds (corresponding to a feed plate speed of no more than 0.2 m / s). The PLC program performs debouncing filtering on this signal.

[0044] Stepper motor 21 is a closed-loop stepper motor, and the Leadshine Intelligent CL86 series matching driver can be selected.

[0045] The position sensor 12 is used to detect whether the support plate 30 has risen to the position of being level with the corresponding height horizontal bar 13. An inductive proximity switch is selected, such as the Turck NI8-M18-AP6X. Since the support plate 30 is made of aluminum alloy, in order to ensure the reliability of detection, an iron induction plate can be attached to the corresponding position on the side of the support plate 30 to ensure that the sensor can detect stably.

[0046] The yarn spindle storage device provided by the present invention also includes a control unit, which is electrically connected to a photoelectric switch 55, a stepper motor 21, a position sensor 12 and an electromagnet 16, thereby coordinating and controlling the operation of the above-mentioned electrical components.

[0047] In the initial state, the system performs a power-on self-test, and the PLC confirms that the stepper motor 21 is at the origin (i.e., the bottom support roller 25 is in the waiting position under the base plate 52), and all electromagnets 16 are in a de-energized state.

[0048] When yarn spindles need to be stored, the operator sends a palletizing command to the PLC through the human-machine interface (HMI) or buttons. The yarn spindles are first evenly placed on the support plate 30, and then the support plate 30 is aligned with the two guide belts 50. The support plate 30, which is fully loaded with yarn spindles, is then pushed horizontally to the top of the base plate 52. The guide belts 50 can speed up the alignment of the support plate 30 and the base plate 52. When the support plate 30 is placed on the base plate 52, the photoelectric switch 55 detects that the support plate 30 is on the base plate 52 and outputs a high level to the PLC (input point I0.0=1). At this time, the auxiliary relay inside the PLC records "object entered". As the support plate 30 continues to move forward, when it reaches its final position, it comes into contact with the positioning rod 51. At this point, the support plate 30 leaves the detection range of the photoelectric switch 55, and the photoelectric switch 55 outputs a low level (I0.0 changes from 1 to 0). The PLC program detects the falling edge of I0.0, which triggers a single-pulse timer (TON) to generate a pulse signal M0.0 with a duration of T (set to 0.3 seconds) inside the PLC. After receiving the M0.0 signal, the PLC immediately sends a pulse train and direction signal to the driver of the stepper motor 21 to control the stepper motor 21 to rotate in the forward direction, thereby causing the drive shaft 28 to rotate, which in turn drives the sprocket 26 to rotate, thereby driving the chain 22 to move. The support roller 25 then moves accordingly. When the support roller 25 on the chain 22 near the support plate 30 comes into contact with the limit block 32, the support roller 25 continues to move upward, thereby driving the limit block 32 to move upward, thus realizing the upward lifting of the support plate 30.

[0049] When the support plate 30 moves upward to be level with the highest horizontal bar 13, the position sensor 12, which is at the same height as the support plate 30, detects that the support plate 30 has reached its position. After the position sensor 12 (inductive proximity switch) detects the sensing plate on the side of the support plate 30, its output signal changes from low to high. After receiving the signal from the position sensor 12, the PLC immediately executes two actions: Lifting stop: Stop sending pulses to stepper motor 21, brake and lock stepper motor, and support roller 25 stops; Locking the support plate: The PLC output point is energized, which energizes the electromagnet 16 corresponding to the current height; When the PLC controls the electromagnet 16 inside the highest horizontal bar 13 to be energized, the electromagnet 16 attracts the limiting block 32 inside the support plate 30, causing the limiting block 32 to move closer to the horizontal bar 13. The spring 36 is then compressed, and the limiting pin 37 moves with the limiting block 32 to be inserted into the limiting hole 14, thereby fixing the support plate 30 to the horizontal bar 13.

[0050] At the same time, the through groove 35 moves with the limiting block 32 to align with the first notch 31, which makes the support roller 25 aligned with the through groove 35 and the first notch 31, preparing for the subsequent clearance of the support roller 25, so that the support roller 25 can move with the chain 22 to pass through the through groove 35 and the first notch 31.

[0051] After the top layer of the support plate is fixed, the PLC records that the layer is "occupied". Then, when the next support plate 30 triggers the falling edge of the photoelectric switch 55 again, the PLC controls the stepper motor 21 to start again, raising the second support plate to the next higher layer and locking it by the electromagnet 16 at the corresponding height. This cycle continues until all layers (except the bottom layer) are placed, thus completing the stacking operation of the yarn spindles. The bottom layer support plate 30 is placed on the bottom plate 52.

[0052] When all position sensors 12 detect the presence of the support plate 30, the PLC receives the signal, and the control unit restricts the stepper motor 21 from rotating in the forward direction.

[0053] When destacking is required, the control unit controls the stepper motor 21 to reverse and drives the chain 22 to move in the opposite direction. Then, the support roller 25 on the side closest to the support plate 30 moves periodically from top to bottom. The distance that the support roller 25 moves is consistent with the distance between two adjacent support plates 30.

[0054] When destacking begins, the operator sends a destacking command to the PLC via the human-machine interface (HMI) or a button. When the bottommost support plate 30 is pulled outward from the bottom plate 52, the photoelectric switch 55 detects that the support plate 30 has left the bottom plate 52. The PLC detects the falling edge signal of the photoelectric switch 55, and the control unit controls the bottommost electromagnet 16 to be de-energized. The electromagnet 16 no longer attracts the corresponding limit block 32, and the limit block 32 moves in the opposite direction under the elastic force of its corresponding spring 36. The through groove 35 is misaligned with the first notch 31, and the through groove 35 is located above the support roller 25. The limit pin 37 is pulled out from the limit hole 14, and the support plate 30 falls on the four support rollers 25 on the same horizontal plane. After 3 seconds, the control unit controls the stepper motor 21 to rotate in the opposite direction, so that the support plate 30 corresponding to the bottommost horizontal bar 13 is moved down to the bottom plate 52, and the stepper motor 21 stops.

[0055] At this point, the support plate 30 on the base plate 52 is removed. This process is repeated, and the control unit controls the electromagnets 16 to de-energize one by one from bottom to top, thereby realizing the destacking operation.

[0056] The beneficial effects that the embodiments of this specification may bring include, but are not limited to: 1. The present invention places yarn spindles on a support plate, and the concave cavity is used to accommodate the protruding part of the central shaft of the yarn spindle, so that the yarn spindle can be stably placed on the support plate; 2. When the yarn spindles are stored, the support plate containing the yarn spindles is pushed into the storage device along the bottom plate. When the support plate abuts against the positioning rod, the limiting block aligns with the chain. The stepper motor drives the chain to rotate, which causes the support roller to move. The support roller pushes the limiting block to move upward, thereby lifting the support plate upward until the support plate is aligned with the horizontal bar at a specified height. When the position sensor detects that the support plate is in place, the electromagnet is energized to attract the limiting block, and the limiting pin moves and gets into the limiting hole, thereby fixing the support plate on the stand. In this way, multiple support plates are placed at equal intervals from top to bottom. Since there is no limitation of palletizing equipment, the distance between multiple storage devices can be minimized and the storage height can be maximized, thereby greatly improving the storage volume of the yarn spindle warehouse. It should be noted that different embodiments may produce different beneficial effects. In different embodiments, the beneficial effects may be any one or a combination of the above, or any other possible beneficial effects.

[0057] The basic concepts have been described above. It is obvious that the detailed disclosure above is merely illustrative and does not constitute a limitation of this specification. Although not explicitly stated herein, various modifications, improvements, and corrections may be made to this specification by those skilled in the art. Such modifications, improvements, and corrections are taught in this specification and therefore remain within the spirit and scope of the exemplary embodiments described herein.

Claims

1. A yarn spindle storage device, characterized in that, include: The stand (1) is fixed on the base (40) and erected on the ground; The storage assembly (3) is used to place yarn spindles. The storage assembly (3) includes a support plate (30) and a plurality of limiting components disposed therein. The limiting components include a limiting block (32) and a limiting pin (37). The limiting block (32) is slidably disposed inside the support plate (30). The limiting pin (37) is fixed on the limiting block (32) and can extend out of the support plate (30) as the limiting block (32) slides. The lifting assembly (2) is provided with multiple components that are vertically fixed on the stand (1) and correspond to the limiting component. The lifting assembly 2 includes a frame plate (20) and multiple support rollers (25). The multiple support rollers (25) move periodically on the frame plate (20) through a transmission component in a flexible transmission manner. The support rollers (25) are used to lift the limiting block (32), so that the supporting plate (30) moves upward. When the supporting plate (30) moves to the designated position, the limiting block (32) slides horizontally until it disengages from the support rollers (25) and does not coincide with the movement path of the support rollers (25). At the same time, the limiting pin (37) is locked on the stand (1) and remains stable.

2. The yarn spindle storage device according to claim 1, characterized in that, The stand (1) includes two supports, which are symmetrically arranged on both sides of the storage component (3). The support consists of two vertically arranged uprights (10) and multiple horizontally arranged horizontal bars (13). The multiple horizontal bars (13) are distributed vertically at equal intervals and fixed between the two uprights (10). Limiting holes (14) are opened at both ends of the horizontal bars (13), and the limiting pins (37) can be embedded in the limiting holes (14). The spacing between two adjacent support rollers (25) is the same as the spacing between two adjacent horizontal bars (13).

3. A yarn spindle storage device according to claim 2, characterized in that, Two electromagnets (16) corresponding to the limiting holes (14) are provided inside the horizontal rod (13). Multiple connecting short rods (15) corresponding to the horizontal rod (13) are fixed between the bracket and the frame plate (20). A position sensor (12) is fixed on the connecting short rod (15). The position sensor (12) is used to detect the position of the support plate (30). When the position sensor (12) detects that the support plate (30) is in place, the electromagnet (16) at the same height as the position sensor (12) is energized to attract the limiting block (32), causing it to slide towards the horizontal rod (13). Then the limiting pin (37) is inserted into the limiting hole (14).

4. A yarn spindle storage device according to claim 2, characterized in that, Multiple connecting rods (60) are provided between the two brackets. The connecting rods (60) are symmetrically arranged on both sides of the storage assembly (3). The two ends of the connecting rods (60) are fixedly connected to the two shelf plates (20) respectively. Inclined diagonal rods (27) are fixed between adjacent horizontal rods (13).

5. A yarn spindle storage device according to claim 1, characterized in that, The support plate (30) is formed by bending aluminum alloy sheet into a hollow plate shape. The upper side wall of the support plate (30) has a plurality of evenly distributed and downwardly recessed cavities (39). The cavities (39) are used to place the central shaft protrusion on the yarn spindle. The support plate (30) is fixed with cross-arranged reinforcing ribs (310). The limiting components are configured as four and are respectively set at the four corners of the support plate (30).

6. A yarn spindle storage device according to claim 5, characterized in that, The support plate (30) has a first notch (31) corresponding to the limiting component. The movement trajectory of the support roller (25) passes through the first notch (31). The limiting block (32) has a vertical through groove (35) with its opening facing the chain (22). The upper and lower sides of the limiting block (32) have sliding grooves parallel to its sliding direction. The upper and lower side walls of the support plate (30) are fixed with guide strips (311) corresponding to and slidably connected to the sliding grooves. The limiting block (32) and the support roller (25) are connected to the chain (22). A spring (36) is fixed between the side walls of the support plate (30). A circular hole corresponding to the limiting pin (37) is opened on the side wall of the support plate (30). The axis of the circular hole coincides with the axis of the limiting pin (37). A pin sleeve (38) sleeved on the limiting pin (37) is fixed on the side wall of the support plate (30). When the spring (36) is in a relaxed state, the through groove (35) is offset from the first notch (31). When the spring (36) is contracted, the through groove (35) is aligned with the first notch (31).

7. A yarn spindle storage device according to claim 2, characterized in that, The transmission component includes a chain (22) and two sprockets (26). The two sprockets (26) are rotatably connected to the upper and lower ends of the frame plate (20). The frame plate (20) has a guide groove (23) that is consistent with the movement trajectory of the support roller (25). The chain (22) is connected to the two sprockets (26) and is located in the guide groove (23). The support roller (25) is installed on the chain link of the chain (22) through the roller seat (24). The support roller (25) is rotatably connected to the roller seat (24). The axis of the support roller (25) is perpendicular to the sliding direction of the limit block (32). Two drive shafts (28) are provided between two shelf plates (20) on the same side of the storage component (3). The two ends of the drive shafts (28) are fixedly connected to two sprockets (26) respectively. A stepper motor (21) is fixed at the lower end of the shelf plate (20). The drive shafts (28) are fixedly connected to the output shaft of the stepper motor (21).

8. A yarn spindle storage device according to claim 2, characterized in that, The lower end of the stand (1) is equipped with a loading platform, which includes a base plate (52) and a positioning rod (51). The positioning rod (51) is fixed on a side bracket and located directly below the lowest horizontal rod (13). The base plate (52) is fixed on the stand (1). The base plate (52) has a second notch (54) corresponding to the lifting component (2). The movement trajectory of the support roller (25) passes through the second notch (54). The upper end face of the base plate (52) is flush with the lower end face of the positioning rod (51). The upper end face of the base plate (52) has two symmetrically arranged positioning plates (53) vertically fixed. The two positioning plates (53) are located on both sides of the support plate (30). The two positioning plates (53) cooperate with the positioning rod (51) to achieve positioning of the support plate (30) before lifting.

9. A yarn spindle storage device according to claim 8, characterized in that, The loading platform also includes two symmetrically arranged guide belts (50). The guide belts (50) are fixed on the other side bracket and are arranged opposite to the positioning rod (51). A photoelectric switch (55) is fixed on the base plate (52) between the two guide belts (50). The distance between the photoelectric switch (55) and the positioning rod (51) is the same as the length of the loading plate (30). The photoelectric switch (55) is used to detect whether the loading plate (30) abuts against the positioning rod (51). The two guide belts (50) are arranged in a trumpet shape.

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