A pressing and rotating device and a yarn-feeding robot based on a fixed rotary drive mechanism.

Abstract

This application relates to a pressing and rotating device and a yarn-feeding robot based on a fixed rotary drive mechanism. The pressing and rotating device includes a mounting base; a movable base disposed opposite to the mounting base along a first direction; a rotary drive mechanism mounted on the mounting base; a pressing drive mechanism connected to the movable base for driving the movable base to move along the first direction; a connecting component connected to both the rotary drive mechanism and the movable base; the rotary drive mechanism drives the connecting component to rotate relative to the movable base, and the connecting component can move along the movable base along the first direction; a pressing and rotating component connected to the end of the connecting component away from the rotary drive mechanism for pressing or releasing the component to be rotated. In this way, the rotary drive mechanism does not move with the pressing drive mechanism, thus reducing the possibility of vibration or impact on the rotary drive mechanism, and also reducing the load on the pressing drive mechanism, improving the stress stability of the pressing drive mechanism, thereby improving its overall service life.

Description

Technical Field

[0001] This application relates to the field of textile machinery technology, and in particular to a pressing and rotating device and a yarn feeding robot based on a fixed rotary drive mechanism. Background Technology

[0002] In the automated process of extracting yarn ends, it is necessary to extract yarn ends from multiple yarn tubes simultaneously, and each yarn tube should be able to rotate around its own axis at its corresponding station.

[0003] A pressing and rotating device is typically used to simultaneously press and rotate the bobbin. However, in related technologies, the rotating drive mechanism in the pressing and rotating device follows the pressing mechanism in its pressing motion, which can easily cause instability in the pressing mechanism and thus reduce the service life of the pressing and rotating device. Utility Model Content

[0004] Therefore, it is necessary to address the problem that the rotary drive mechanism in the existing pressing rotary device follows the pressing mechanism in pressing motion, which easily causes the pressing mechanism to be under unstable force, thus leading to a decrease in the service life of the pressing rotary device. To provide a pressing rotary device and yarn feeding robot based on a fixed rotary drive mechanism that can make the pressing mechanism under stable force and improve the service life of the pressing rotary device.

[0005] This application provides a pressing and rotating device based on a fixed rotary drive mechanism, used to press down on a workpiece to be rotated and cause it to rotate. The pressing and rotating device includes:

[0006] Mounting base;

[0007] The movable base is positioned opposite the mounting base along a first direction;

[0008] Rotary drive mechanism, mounted on mounting base;

[0009] A downward drive mechanism, connected to the movable base, is used to drive the movable base to move along a first direction;

[0010] A connecting assembly is connected to both a rotary drive mechanism and a movable base; the rotary drive mechanism drives the connecting assembly to rotate relative to the movable base, and the connecting assembly can move along the movable base in a first direction; and

[0011] The pressing rotating component is connected to the end of the connecting assembly away from the rotary drive mechanism, and is used to press down or release the component to be rotated.

[0012] In one embodiment, the connecting component is capable of moving relative to the rotation drive mechanism along a first direction following the movable seat.

[0013] In one embodiment, the connecting assembly includes a rotating shaft, a first rotating sleeve assembly, and a first fixing assembly. One end of the rotating shaft is connected to a rotating drive mechanism, and the other end of the rotating shaft passes through the first rotating sleeve assembly and is connected to a pressing rotating member. The first rotating sleeve assembly can rotate with the rotating shaft, and the rotating shaft is limited to the first rotating sleeve assembly along a first direction. The first fixing assembly is fixed to the movable seat, and the first rotating sleeve assembly is rotatably engaged with the first fixing assembly and is limited to the first fixing assembly along the first direction.

[0014] In one embodiment, the first fixing component includes a first fixing sleeve component and a first fixing bearing. The movable seat has a through first mounting hole. The first fixing sleeve component is installed in the first mounting hole. The first fixing bearing is installed in the inner hole of the first fixing sleeve component. The first rotating sleeve component is rotatably engaged with the first fixing bearing. The first rotating sleeve component is limited to the first fixing sleeve component along a first direction.

[0015] In one embodiment, the first rotating sleeve assembly includes a first rotating sleeve and a second rotating sleeve. The first rotating sleeve is rotatably engaged with the first fixed component and is limited to the first fixed component along a first direction. The second rotating sleeve is fixed to the end of the first rotating sleeve facing the rotating drive mechanism. The rotating shaft passes through the inner hole of the first rotating sleeve and the inner hole of the second rotating sleeve.

[0016] The inner hole of the second rotating sleeve is provided with an elastic element, and the outer periphery of the rotating shaft has a radially protruding limiting part. The elastic element is compressed between the second rotating sleeve and the limiting part to provide a preload force that keeps the limiting part against the first rotating sleeve in the first direction.

[0017] In one embodiment, the connecting assembly includes a rotating shaft, a third rotating sleeve, and a second fixing assembly. The second fixing assembly is fixed to the mounting base. The third rotating sleeve is rotatably engaged with the second fixing assembly. The third rotating sleeve is connected to the rotating drive mechanism and is limited to the rotating drive mechanism along a first direction. One end of the rotating shaft passes through the third rotating sleeve and is movable relative to the third rotating sleeve along the first direction. The rotating shaft can rotate with the third rotating sleeve.

[0018] In one embodiment, the connecting component includes a universal joint that connects the rotary drive mechanism and the movable base.

[0019] In one embodiment, the rotary drive mechanism includes multiple output ends, multiple connecting components, each output end is connected to a corresponding connecting component, each connecting component is connected to a movable seat, and multiple pressing rotary members are included, each pressing rotary member is connected to a corresponding connecting component.

[0020] In one embodiment, the rotary drive mechanism includes a rotary drive member and a gear transmission mechanism. The gear transmission mechanism includes multiple transmission gears, all of which mesh sequentially. The rotary drive member is connected to one of the transmission gears, and each connecting component is connected to the output end of a corresponding transmission gear.

[0021] Another aspect of this application provides a yarn-feeding robot, including the aforementioned pressing and rotating device based on a fixed rotary drive mechanism.

[0022] The aforementioned pressing and rotating device and yarn-feeding robot based on a fixed rotary drive mechanism have the rotary drive mechanism entirely mounted on a mounting base. The pressing drive mechanism is only connected to the connecting component via a movable base. Therefore, when the pressing drive mechanism drives the movable base to move in the first direction, the rotary drive mechanism will not move with the pressing drive mechanism. Only the connecting component connected to the movable base moves. This reduces the possibility of the rotary drive mechanism being subjected to vibration or impact, and also reduces the load on the pressing drive mechanism, improving the stability of the force on the pressing drive mechanism and thus improving the overall service life of the pressing and rotating device. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural schematic diagram of a pressing and rotating device based on a fixed rotary drive mechanism according to an embodiment of this application;

[0024] Figure 2 for Figure 1 The diagram shows a partial structure of the pressing and rotating device based on a fixed rotary drive mechanism.

[0025] Figure 3 for Figure 2 A schematic diagram of a portion of the pressing and rotating device based on a fixed rotary drive mechanism, shown from another perspective.

[0026] Figure 4 for Figure 2 The diagram shows another perspective of the partial structure of the pressing and rotating device based on the fixed rotary drive mechanism.

[0027] Figure 5 for Figure 2 The diagram shows a partial cross-sectional view of the pressing and rotating device based on a fixed rotary drive mechanism.

[0028] Figure 6 for Figure 5 A partial enlarged schematic diagram of point A of the pressing and rotating device based on a fixed rotary drive mechanism.

[0029] 100. A pressing and rotating device based on a fixed rotary drive mechanism; 10. Mounting base; 11. Second mounting hole; 20. Movable base; 21. First mounting hole; 30. Rotary drive mechanism; 31. Rotary drive component; 32. Gear transmission mechanism; 321. Transmission gear; 3211. First gear; 3212. Second gear; 40. Pressing drive mechanism; 50. Connecting assembly; 51. Rotating shaft; 511. Limiting part; 52. First rotating sleeve assembly; 521. First rotating sleeve; 522. Second rotating sleeve; 523. Elastic component; 53. First fixing assembly; 531. First fixing sleeve assembly; 532. First fixing bearing; 54. Third rotating sleeve; 55. Second fixing assembly; 551. Second fixing sleeve assembly; 552. Second fixing bearing; 60. Pressing and rotating component; 70. Guide component; 200. Component to be rotated. Detailed Implementation

[0030] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0031] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0032] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0033] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0034] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0035] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0036] Furthermore, the accompanying drawings are not drawn to a 1:1 scale, and the relative dimensions of the components are shown in the drawings only as examples and not necessarily to actual scale.

[0037] See appendix Figure 1 and Figure 2 One embodiment of this application provides a pressing and rotating device 100 based on a fixed rotary drive mechanism, used to press down and rotate a workpiece 200, including a mounting base 10, a movable base 20, a rotary drive mechanism 30, a pressing drive mechanism 40, a connecting assembly 50, and a pressing and rotating workpiece 60. The pressing and rotating device 100 of this application can be applied to a yarn feeding robot 300, where the workpiece 200 is a yarn tube or a brush used to collect yarn ends. Specifically, the pressing and rotating device 100 can be used at the yarn feeding robot 300's scraping station or yarn end collection station. The scraping station is used to scrape the surface of the yarn tube, and the yarn end collection station can collect the yarn ends of the yarn tube and remove the tail yarn.

[0038] The movable seat 20 and the mounting seat 10 are arranged opposite each other along the first direction. The rotary drive mechanism 30 is mounted on the mounting seat 10. The pressing drive mechanism 40 is connected to the movable seat 20 and is used to drive the movable seat 20 to move along the first direction. The connecting component 50 is connected to the rotary drive mechanism 30 and the movable seat 20. The rotary drive mechanism 30 is used to drive the connecting component 50 to rotate relative to the movable seat 20. The connecting component 50 can move with the movable seat 20 along the first direction. The pressing rotating component 60 is connected to the end of the connecting component 50 away from the rotary drive mechanism 30 and is used to press down or release the component 200 to be rotated.

[0039] Specifically, the first direction is the vertical direction shown in the figure. When the pressing drive mechanism 40 drives the moving seat 20 to move along the first direction, it can drive the connecting component 50 and the pressing rotating component 60 connected to the connecting component 50 to move along the first direction, thereby moving closer to or away from the component to be rotated 200, so as to press down or release the component to be rotated 200.

[0040] Furthermore, the ability of the connecting component 50 to move along the first direction following the movement of the movable seat 20 means that the connecting component 50 can be passively influenced by the movement of the movable seat 20 along the first direction and thus move further. This movement can be linear motion, oscillating motion, or other types of motion. When the connecting component 50 can move linearly along the first direction following the movement of the movable seat 20, the connecting component 50 can move linearly along the first direction or along other directions intersecting the first direction; there are no specific restrictions, as long as it does not affect the movement of the movable seat 20 in the first direction. Moreover, the rotational motion of the connecting component 50 relative to the movable seat 20 and the movement of the connecting component 50 following the movement of the movable seat 20 along the first direction do not affect each other.

[0041] Therefore, in the pressing and rotating device 100 of this application embodiment, since the rotating drive mechanism 30 is entirely mounted on the mounting base 10, and the pressing drive mechanism 40 is only connected to the connecting component 50 through the movable base 20, when the pressing drive mechanism 40 drives the movable base 20 to move in the first direction, the rotating drive mechanism 30 will not move with the pressing drive mechanism 40, but only the connecting component 50 connected to the movable base 20 moves. This reduces the possibility of the rotating drive mechanism 30 being subjected to vibration or impact, and also reduces the load on the pressing drive mechanism 40, improving the stability of the force on the pressing drive mechanism 40, thereby improving the service life of the pressing and rotating device 100 as a whole.

[0042] In the specific embodiments of this application, the mounting base 10 is plate-shaped, and the movable base 20 is also plate-shaped. The mounting base 10 is mounted on the overall support of the yarn feeding robot 300 to improve the structural reliability of the mounting base 10.

[0043] Combination Figure 3 In some embodiments, the rotary drive mechanism 30 and the movable seat 20 are respectively disposed on opposite sides of the mounting base 10 along the first direction. Specifically, the rotary drive mechanism 30 is disposed vertically on the top of the mounting base 10, thus providing reliable support for the rotary drive mechanism 30. In addition, the pressing drive mechanism 40 can also be mounted on the mounting base 10, and the output end of the pressing drive mechanism 40 is connected to the movable seat 20.

[0044] In the embodiments of this application, the pressing and rotating device 100 can simultaneously press down on and rotate multiple parts 200 to be rotated, thereby improving the working efficiency of the yarn feeding device. For example, the pressing and rotating device 100 can simultaneously press down on and rotate at least three parts 200 to be rotated, specifically four parts 200 to be rotated.

[0045] Combination Figure 4 Specifically, the rotary drive mechanism 30 includes multiple output ends, the connecting component 50 includes multiple components, each output end is connected to a corresponding connecting component 50, each connecting component 50 is connected to the movable seat 20, and the pressing rotary component 60 includes multiple components, each pressing rotary component 60 is connected to a corresponding connecting component 50.

[0046] Thus, by setting multiple pressing rotating parts 60 to be connected one-to-one with multiple output ends of the rotary drive mechanism 30 via multiple connecting components 50, the common rotation of the multiple pressing rotating parts 60 can be achieved. Furthermore, since each connecting component 50 is connected to the movable base 20, the movable base 20, driven by the pressing drive mechanism 40, can simultaneously drive multiple connecting components 50 to move, thereby achieving the common movement of the multiple pressing rotating parts 60. Moreover, the pressing drive mechanism 40 can move the multiple pressing rotating parts 60 by only driving the movable base 20, simplifying the structure, reducing space occupation, and improving the reliability of simultaneous movement.

[0047] Specifically, the pressing drive mechanism 40 includes a pressing drive component, which can be a pressing cylinder. In embodiments of this application, when the pressing drive mechanism 40 is mounted on the mounting base 10, the pressing drive mechanism 40 may further include a connecting rod, one end of which is connected to the output shaft of the pressing cylinder, and the other end of which passes through the mounting base 10 and is connected to the movable base 20. In other embodiments, the pressing drive mechanism 40 may also be directly connected to the movable base 20 via the output shaft.

[0048] Furthermore, the rotary drive mechanism 30 also includes a rotary drive component 31 and a gear transmission mechanism 32. The gear transmission mechanism 32 includes a plurality of transmission gears 321, all of which mesh sequentially. The rotary drive component 31 is connected to one of the transmission gears 321, and each connecting component 50 is connected to the output end of the corresponding transmission gear 321.

[0049] Thus, when the rotary drive mechanism 30 drives one of the transmission gears 321 of the gear transmission mechanism 32 to rotate, due to the meshing transmission between multiple transmission gears 321, the remaining transmission gears 321 can all rotate around their own axes, thereby driving the corresponding connecting component 50 to rotate. Furthermore, compared to other transmission methods, such as belt and chain transmissions, gear transmission is smoother, thus improving the rotational stability of the rotating component 200. Additionally, when the rotating component 200 is a bobbin of yarn, the impact of lint and tangles in the environment on the transmission gears 321 is smaller, reducing the cleaning frequency.

[0050] Furthermore, all transmission gears 321 include at least one first gear 3211 and a plurality of second gears 3212, wherein one first gear 3211 is connected to the rotary drive member 31, any two connected second gears 3212 are driven by meshing with the first gear 3211, and each second gear 3212 is connected to a corresponding connecting component 50, wherein the number of teeth of the first gear 3211 is less than the number of teeth of the second gear 3212.

[0051] Thus, since the number of teeth of the first gear 3211 is less than the number of teeth of the second gear 3212, during the rotational force transmission process of the rotary drive 31, the rotational speed of the second gear 3212 is reduced through the first gear 3211, thereby reducing the rotational speed of the connecting assembly 50 and improving rotational stability.

[0052] Specifically, in the embodiments of this application, the number of second gears 3212 is [number] and the number of first gears 3211 is [number].

[0053] See Figure 5 and Figure 6 In the embodiments of this application, the connecting component 50 is capable of moving relative to the rotation drive mechanism 30 along the first direction following the movable seat 20.

[0054] In other words, when the movable seat 20 moves along the first direction under the driving action of the pressing drive mechanism 40, the connecting component 50 can follow the movable seat 20 and move along the first direction. Therefore, the moving direction and mode of the connecting component 50 and the movable seat 20 are the same, resulting in good consistency of movement and simplifying the setting of the connecting component 50. In other embodiments, the connecting component 50 includes a universal coupling, which is connected between the rotary drive mechanism 30 and the movable seat 20. The universal coupling is a technical structure well known to those skilled in the art and will not be described in detail here.

[0055] Specifically, the connecting component 50 includes a rotating shaft 51, a first rotating sleeve assembly 52, and a first fixing component 53. One end of the rotating shaft 51 is connected to the rotating drive mechanism 30, and the other end of the rotating shaft 51 passes through the first rotating sleeve assembly 52 and is connected to the pressing rotating member 60. The first rotating sleeve assembly 52 can rotate with the rotating shaft 51, and the rotating shaft 51 is limited to the first rotating shaft 51 sleeve assembly along the first direction. The first fixing component 53 is fixed to the movable seat 20. The first rotating sleeve assembly 52 and the first fixing component 53 are rotatably engaged, and the first rotating sleeve assembly 52 is limited to the first fixing component 53 along the first direction.

[0056] Since the first fixing component 53 is fixed to the movable seat 20, when the movable seat 20 moves along the first direction under the driving action of the pressing drive mechanism 40, the first fixing component 53 moves along the first direction. The first rotating sleeve component 52 is limited to the first fixing component 53 along the first direction, so it can also move along the first fixing component 53 along the first direction. Furthermore, the rotating shaft 51 is limited to the first rotating sleeve component 52 along the first direction. Therefore, the rotating shaft 51 moves along the first rotating sleeve component 52 along the first direction, thereby driving the pressing rotating member 60 connected to the rotating shaft 51 to move. In addition, when the rotating shaft 51 rotates under the driving action of the rotating drive mechanism 30, since the first rotating sleeve component 52 can rotate with the rotating shaft 51, the rotating shaft 51 and the rotating sleeve component can rotate relative to the first fixing component 53 as a whole, and drive the pressing rotating member 60 to rotate.

[0057] The method of achieving rotation and movement in the first direction by setting up a rotating shaft 51, a first rotating sleeve assembly 52 and a first fixed assembly 53 is simple and reliable.

[0058] Furthermore, the first fixing component 53 includes a first fixing sleeve component 531 and a first fixing bearing 532. The movable seat 20 has a through first mounting hole 21. The first fixing sleeve component 531 is installed in the first mounting hole 21. The first fixing bearing 532 is installed in the inner hole of the first fixing sleeve component 531. The first rotating sleeve component 52 is rotatably engaged with the first fixing bearing 532, and the first rotating sleeve component 52 is limited to the first fixing sleeve component 531 along the first direction.

[0059] By installing the first fixed sleeve assembly 531 in the first mounting hole 21, the reliability of the first fixed sleeve assembly 531 being fixed relative to the movable seat 20 can be improved. Furthermore, by rotating the first rotating sleeve assembly 52 in conjunction with the first fixed bearing 532, the stability and reliability of the first rotating sleeve assembly 52 rotating relative to the first fixed assembly 53 can be improved.

[0060] Specifically, in the embodiments of this application, the first fixed bearing 532 includes two bearings, which are arranged axially relative to each other and spaced apart along the inner hole of the first fixed sleeve assembly 531. The first rotating sleeve assembly 52 is rotatably engaged with the two first fixed bearings 532. This makes the force on the first rotating sleeve assembly 52 more even during rotation. Specifically, the first fixed bearings 532 can be fixed in the stepped holes at both ends of the first fixed sleeve assembly 531.

[0061] In some embodiments, the first rotating sleeve assembly 52 includes a first rotating sleeve 521 and a second rotating sleeve 522. The first rotating sleeve 521 is rotatably engaged with the first fixing assembly 53 and is confined to the first fixing assembly 53 along a first direction. The second rotating sleeve 522 is fixed to one end of the first rotating sleeve 521 facing the rotating drive mechanism 30. A rotating shaft 51 passes through the inner holes of the first rotating sleeve 521 and the second rotating sleeve 522. An elastic element 523 is provided in the inner hole of the second rotating sleeve 522. The outer periphery of the rotating shaft 51 has a radially protruding limiting portion 511. The elastic element 523 is compressed between the second rotating sleeve 522 and the limiting portion 511 to provide a preload force that keeps the limiting portion 511 against the first rotating sleeve 521 along the first direction.

[0062] Due to the provision of the limiting part 511 and the elastic member 523, the rotating shaft 51 can be kept in contact with the first rotating sleeve 521. Thus, when the moving seat 20 moves along the first direction, the first rotating sleeve 521 can drive the second rotating sleeve 522 to move, thereby driving the elastic member 523 and the rotating shaft 51 to move synchronously along the first direction.

[0063] Furthermore, when the rotating shaft 51 drives the pressing rotating member 60 to press down on the rotating member 200 in the first direction, it will be subjected to the reaction force of the rotating member 200, causing the rotating shaft 51 to move upward in the first direction. At this time, the limiting part 511 on the rotating shaft 51 can compress the elastic member 523. The elastic member 523 will buffer the force and keep the pressing rotating member 60 in contact with the rotating member 200. Therefore, the provision of the elastic member 523 can reduce the damage to the rotating member 200 caused by pressing down, especially when the pressing stroke of the pressing drive mechanism 40 is too large.

[0064] In addition, when the rotating part 200 is a bobbin, the elastic element 523 enables the pressing rotating part 60 to be compatible with bobbins of different lengths. Furthermore, the elastic element 523 is located in the inner hole of the second rotating sleeve 522, which is relatively sealed and has less vibration, thus improving the service life of the elastic element 523.

[0065] Optionally, the limiting portion 511 may protrude from the outer peripheral surface of the rotating shaft 51 around the axis of the rotating shaft 51. In this way, the limiting of the elastic member 523 can be improved.

[0066] Optionally, the elastic element 523 can be a compression spring, or in other embodiments, it can be elastic rubber or elastic silicone, etc., and there are no specific limitations.

[0067] In the embodiments of this application, the connecting component 50 further includes a third rotating sleeve 54 and a second fixing component 55. The second fixing component 55 is fixed to the mounting base 10. The third rotating sleeve 54 is rotatably engaged with the second fixing component 55. The third rotating sleeve 54 is connected to the rotating drive mechanism 30 and is limited to the rotating drive mechanism 30 along the first direction. One end of the rotating shaft 51 passes through the third rotating sleeve 54 and is movable relative to the third rotating sleeve 54 along the first direction. The rotating shaft 51 can rotate with the third rotating sleeve 54.

[0068] Since the third rotating sleeve 54 is connected to the rotating drive mechanism 30, it can rotate under the drive of the rotating drive mechanism 30. The rotating shaft 51 can rotate with the third rotating sleeve 54, thus driving the downward rotating member 60 connected to it to rotate. In addition, the second fixing component 55 is fixed to the mounting base 10, and the third rotating sleeve 54 is rotatably engaged with the second fixing component 55, thus improving the rotational stability of the third rotating sleeve 54.

[0069] The method of achieving rotation and movement in the first direction by setting up a rotating shaft 51, a third rotating sleeve 54 and a second fixed component 55 is simple and reliable.

[0070] Furthermore, the second fixing component 55 includes a second fixing sleeve component 551 and a second fixing bearing 552. The mounting base 10 has a through second mounting hole 11. The second fixing sleeve component 551 is installed in the second mounting hole 11, and the second fixing bearing 552 is installed in the inner hole of the second fixing sleeve component 551. The third rotating sleeve 54 is rotatably engaged with the second fixing bearing 552.

[0071] By installing the second fixed sleeve assembly 551 in the second mounting hole 11, the reliability of fixing the second fixed sleeve assembly 551 relative to the mounting base 10 can be improved. Furthermore, by rotating the third rotating sleeve 54 in conjunction with the second fixed bearing 552, the stability and reliability of the rotational movement of the third rotating sleeve 54 relative to the second fixed assembly 55 can be improved.

[0072] Specifically, in the embodiments of this application, the second fixed bearing 552 includes two bearings, which are arranged axially relative to each other and spaced apart along the inner hole of the second fixed sleeve assembly 551. The third rotating sleeve 54 is rotatably engaged with the two second fixed bearings 552. This makes the force on the third rotating sleeve 54 more even during rotation. Specifically, the second fixed bearings 552 can be fixed in the stepped holes at both ends of the second fixed sleeve assembly 551.

[0073] In embodiments of this application, the pressing guide device further includes a guide member 70. The mounting base 10 has a guide hole. One end of the guide member 70 is fixedly connected to the movable base 20, and the other end is slidably engaged with the guide hole to guide the movable base 20 to move relative to the mounting base 10 along a first direction. In other embodiments, the guide hole may also be provided in the movable base 20, with one end of the guide member 70 fixedly connected to the mounting base 10 and the other end slidably engaged with the guide hole to guide the movable base 20 to move relative to the mounting base 10 along the first direction. By providing the guide member 70, the movement of the movable base 20 along the first direction can be made more stable.

[0074] Preferably, the guide member 70 includes a plurality of guide holes, each guide member 70 is slidably engaged with a corresponding guide hole, wherein the plurality of guide members 70 are spaced apart from each other along the circumference of the movable seat 20.

[0075] Based on the same inventive concept, this application also provides a yarn-feeding robot 300, including the aforementioned pressing and rotating device 100 based on a fixed rotating drive mechanism.

[0076] Specifically, the yarn feeding robot 300 also includes a yarn scraping device (not shown) and a yarn end acquisition device (not shown). During the use of the yarn scraping device, a pressing and rotating device 100 is used to press down on the yarn tube and rotate it. The yarn end acquisition device includes two pressing and rotating devices 100, one for pressing down on the yarn tube and rotating it, and the other for pressing down on the brush and rotating it to acquire the yarn ends from the surface of the yarn tube.

[0077] The pressing and rotating device 100 and the yarn-feeding robot 300 based on a fixed rotary drive mechanism provided in this application have the following advantages compared with the prior art:

[0078] Since the rotary drive mechanism 30 is entirely mounted on the mounting base 10, and the pressing drive mechanism 40 is only connected to the connecting component 50 through the movable base 20, when the pressing drive mechanism 40 drives the movable base 20 to move in the first direction, the rotary drive mechanism 30 will not move with the pressing drive mechanism 40. Only the connecting component 50 connected to the movable base 20 moves. This reduces the possibility of the rotary drive mechanism 30 being subjected to vibration or impact, and also reduces the load on the pressing drive mechanism 40, improving the stability of the force on the pressing drive mechanism 40, thereby improving the service life of the pressing rotary device 100 as a whole.

[0079] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0080] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A pressing and rotating device based on a fixed rotary drive mechanism, used to press down on a workpiece to be rotated and cause it to rotate, characterized in that, The pressing and rotating device includes: Mounting base; A movable base is disposed opposite to the mounting base along a first direction; A rotary drive mechanism is mounted on the mounting base; A downward driving mechanism, connected to the movable seat, is used to drive the movable seat to move along the first direction; A connecting component is connected to both the rotary drive mechanism and the movable base; the rotary drive mechanism drives the connecting component to rotate relative to the movable base, and the connecting component can move along the first direction following the movement of the movable base; and The pressing rotating component is connected to the end of the connecting assembly away from the rotating drive mechanism, and is used to press down or release the component to be rotated.

2. The fixed rotary drive mechanism-based push-down rotary device according to claim 1, characterized by The connecting component is capable of moving relative to the rotary drive mechanism along the first direction, following the movable seat.

3. The fixed rotary drive mechanism-based push-down rotary device according to claim 2, characterized by The connecting assembly includes a rotating shaft, a first rotating sleeve assembly, and a first fixing assembly. One end of the rotating shaft is connected to the rotating drive mechanism, and the other end of the rotating shaft passes through the first rotating sleeve assembly and is connected to the pressing rotating member. The first rotating sleeve assembly can rotate with the rotating shaft, and the rotating shaft is limited to the first rotating sleeve assembly along the first direction. The first fixing assembly is fixed to the movable seat, and the first rotating sleeve assembly is rotatably engaged with the first fixing assembly and is limited to the first fixing assembly along the first direction.

4. The fixed rotary drive mechanism-based push-down rotary device according to claim 3, characterized by The first fixing component includes a first fixing sleeve component and a first fixing bearing. The movable seat has a through first mounting hole. The first fixing sleeve component is installed in the first mounting hole. The first fixing bearing is installed in the inner hole of the first fixing sleeve component. The first rotating sleeve component is rotatably engaged with the first fixing bearing. The first rotating sleeve component is limited to the first fixing sleeve component along the first direction.

5. The fixed rotary drive mechanism-based push-down rotary device according to claim 3, wherein The first rotating sleeve assembly includes a first rotating sleeve and a second rotating sleeve. The first rotating sleeve is rotatably engaged with the first fixed component and is limited to the first fixed component along the first direction. The second rotating sleeve is fixed to one end of the first rotating sleeve facing the rotating drive mechanism. The rotating shaft passes through the inner hole of the first rotating sleeve and the inner hole of the second rotating sleeve. The second rotating sleeve has an elastic element in its inner hole, and the outer periphery of the rotating shaft has a radially protruding limiting portion. The elastic element is compressed between the second rotating sleeve and the limiting portion to provide a preload force that keeps the limiting portion against the first rotating sleeve in the first direction.

6. The fixed rotary drive mechanism-based push-down rotary device according to claim 2, wherein The connecting assembly includes a rotating shaft, a third rotating sleeve, and a second fixing assembly. The second fixing assembly is fixed to the mounting base. The third rotating sleeve is rotatably engaged with the second fixing assembly. The third rotating sleeve is connected to the rotating drive mechanism and is limited to the rotating drive mechanism along the first direction. One end of the rotating shaft passes through the third rotating sleeve and is movable relative to the third rotating sleeve along the first direction. The rotating shaft can rotate with the third rotating sleeve.

7. The fixed rotary drive mechanism-based push-down rotary device according to claim 1, wherein The connecting assembly includes a universal joint, which is connected between the rotary drive mechanism and the movable base.

8. The fixed rotary drive mechanism-based push-down rotary device according to claim 1, wherein The rotary drive mechanism includes multiple output ends, the connecting components include multiple components, each output end is connected to a corresponding connecting component, each connecting component is connected to the movable seat, and the pressing rotary member includes multiple components, each pressing rotary member is connected to a corresponding connecting component.

9. The fixed rotary drive mechanism-based push-down rotary device according to claim 8, wherein The rotary drive mechanism includes a rotary drive component and a gear transmission mechanism. The gear transmission mechanism includes multiple transmission gears, all of which mesh sequentially. The rotary drive component is connected to one of the transmission gears, and each connecting component is connected to the output end of the corresponding transmission gear.

10. A yarn feeding robot, characterized in that, The invention includes the pressing and rotating device based on a fixed rotary drive mechanism as described in any one of claims 1 to 9.

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