A yarn bobbin delivery device for a yarn covering machine

Abstract

The present application belongs to the technical field of yarn wrapping machines, and in particular relates to a yarn bobbin delivery device for a yarn wrapping machine, comprising a base, a delivery device and a receiving device, wherein the delivery device comprises a support rod arranged on the base, a delivery plate rotatably arranged on the support rod, a plurality of delivery slides are arranged on the delivery plate, and the receiving device is arranged on both sides of the delivery device and is used to receive the delivered yarn bobbins; the application also includes an adjusting device; the adjusting device is arranged on both sides of the support rod and connected to the delivery plate, and is used to adjust the inclination angle of the delivery plate, and can make the angle adjustment of the delivery plate more stable; wherein the adjusting device is arranged on the base, and its top is hinged to the delivery plate.

Description

Technical Field

[0001] The present application belongs to the technical field of yarn covering machines, and in particular relates to a yarn bobbin delivery device for a yarn covering machine. Background Art

[0002] Covered yarn, also known as wrapped yarn, is a yarn with a filament or staple fiber core wrapped with another filament or staple fiber yarn in a spiral pattern. A yarn covering machine, also known as a yarn covering machine, is an automated machine capable of covering the surface of a core yarn made of various materials and shapes with filament yarn.

[0003] When the yarn covering machine is used to roll yarn, yarn bobbins are needed, and yarn bobbins need to be put into use. The current yarn bobbin putting devices mostly put yarn bobbins into the covering machine before the yarn covering machine is used. The yarn bobbins set on the yarn covering machine become empty bobbins after use. At this time, the empty bobbins need to be manually removed from the yarn covering machine and then replaced with new yarn bobbins.

[0004] The patent with publication number CN111994731B discloses a base plate, a baffle, a first support column, a first rotating shaft, and a delivery plate. The top surface of the delivery plate is provided with multiple delivery slots. The top surface of the base plate is provided with a right telescopic mechanism, the top surface of the base plate is provided with a right receiving mechanism, the top surface of the base plate is provided with a left telescopic mechanism, and the top surface of the base plate is located on the left side of the left telescopic mechanism and is provided with a left receiving mechanism.

[0005] The above patent releases the yarn bobbins in different directions by setting up the left telescopic mechanism and the right telescopic mechanism. Although the delivery of yarn bobbins in different directions can be achieved, it relies on the extension and retraction of the two telescopic cylinders to achieve the angle change of the delivery plate, and buffers the yarn bobbins by setting up the transition cylinder. This can easily cause unstable delivery of the yarn bobbins. The sliding speed of the yarn bobbins is related to the inclination angle. If the inclination angle changes too much in a short period of time, the yarn bobbins will move faster, making it impossible to dock with the transition groove on the transition cylinder, resulting in the inability to deliver the yarn bobbins. Improvement is needed. Summary of the Invention

[0006] The purpose of this application is to provide a yarn bobbin delivery device for a yarn covering machine, which can solve the above problems.

[0007] The present application aims to provide a yarn bobbin delivery device for a yarn covering machine, comprising a base, a delivery device and a receiving device, wherein the delivery device comprises a support rod provided on the base, a delivery plate rotatably provided on the support rod, a plurality of delivery slides provided on the delivery plate, and the receiving devices are provided on both sides of the delivery device and are used to receive the delivered yarn bobbins; and further comprising an adjusting device;

[0008] The adjustment device is arranged on both sides of the support rod and connected to the delivery plate, and is used to adjust the inclination angle of the delivery plate and can make the angle adjustment of the delivery plate more stable;

[0009] The adjusting device is arranged on the base, and the top thereof is hinged to the launching plate.

[0010] The aforementioned bobbin delivery device for a yarn wrapping machine, with its adjustment device, improves the instability and inaccurate delivery of conventional devices during bobbin delivery. The adjustment devices, located on either side of the support rod and connected to the delivery plate, enable precise and stable adjustment of the delivery plate's tilt angle. The adjustment devices ensure smoother adjustment of the delivery plate's angle, avoiding the rapid angle changes caused by the extension and retraction of the two telescopic cylinders. This smooth adjustment reduces bobbin shaking during delivery and improves delivery accuracy. Furthermore, because the adjustment devices stabilize the delivery plate's tilt angle, the bobbin's sliding speed on the delivery chute is more controllable, ensuring accurate alignment of the bobbin with the receiving slot on the receiving device, significantly improving the delivery success rate. Furthermore, the adjustment devices enable the delivery device to accommodate bobbins of varying sizes and weights. By adjusting the delivery plate's tilt angle, the bobbin maintains a consistent sliding speed during delivery, thus avoiding delivery issues caused by varying bobbin sizes.

[0011] Furthermore, the regulating device includes:

[0012] The driver is arranged on the base, and limit assemblies are arranged on both sides of the driver;

[0013] A connecting seat is provided on the telescopic end of the driver and cooperates with the limit assembly;

[0014] A connecting rod is provided on the connecting seat, and a stabilizing component connected to the bottom of the launching plate is provided on the top of the connecting rod;

[0015] Wherein, the connecting seat is slidably arranged on the limiting component.

[0016] The driver is arranged on the base and serves as the power source of the adjusting device, and its telescopic end is connected to the connecting rod through the connecting seat. The limit assemblies arranged on both sides of the driver ensure the stability and accuracy of the connecting seat during the up and down movement, and prevent the connecting seat from offsetting or shaking. The connecting seat is slidably arranged on the limit assemblies, so that the connecting seat can move up and down with the expansion and contraction of the driver, while maintaining the linearity and stability of its movement trajectory. The connecting rod is arranged on the connecting seat, and its top is connected to the bottom of the delivery plate through a stabilizing assembly, thereby converting the telescopic movement of the driver into a change in the tilt angle of the delivery plate. At the same time, the stabilizing assembly on the top of the connecting rod ensures the stability and firmness of the delivery plate during the change in the tilt angle, which not only improves the angle adjustment accuracy of the delivery plate, but also enhances the bearing capacity of the delivery plate when subjected to force.

[0017] When the launch plate's tilt angle needs to be adjusted, the actuator begins to retract. This retraction and expansion of the actuator drives the connecting seat up and down on the limit assembly, which in turn drives the connecting rod up and down. Because the top of the connecting rod is connected to the bottom of the launch plate via a stabilizing assembly, the up and down movement of the connecting rod translates into a change in the launch plate's tilt angle. Precisely controlling the actuator's expansion and contraction and speed allows precise adjustment of the launch plate's tilt angle. The actuator's expansion and contraction can be controlled by a controller, which is currently available and will not be described in detail here.

[0018] Further: the stabilizing component includes:

[0019] The upper seat is arranged at the bottom of the launching plate;

[0020] The lower seat body is rotatably connected to the upper seat body via a rotating shaft;

[0021] The cylinder is arranged on the lower seat and is arc-shaped, its cross section is circular, a sliding space is provided inside, one end is closed and the other end is open;

[0022] A sliding rod is arranged at the bottom of the delivery plate and is arc-shaped;

[0023] A first buffer member is disposed on the rotating shaft and connected to the cylinder and the sliding rod;

[0024] Among them, the cylinder and the sliding rod cooperate with each other, and the sliding rod extends from one end of the delivery plate to the sliding space. The two form a telescopic structure and can be telescoped as the angle of the delivery plate changes. There are two groups of sliding rods and cylinders, located on both sides of the rotating shaft.

[0025] The upper seat is arranged at the bottom of the delivery plate and is fixedly connected to the delivery plate. The lower seat and the upper seat are rotatably connected by a rotating shaft, so that the upper seat (i.e., the delivery plate) can change the tilt angle relative to the lower seat. The cylinder is arranged on the lower seat and is arc-shaped. Its cross-section is circular and a sliding space is provided inside. One end of the cylinder is closed and the other end is provided with an opening for accommodating the sliding rod. The sliding rod is arranged at the bottom of the delivery plate and is arc-shaped, matching the arc shape of the cylinder. The end of the sliding rod away from the delivery plate extends into the sliding space of the cylinder, and the two form a telescopic structure. The first buffer is arranged on the rotating shaft and is connected to the cylinder and the sliding rod. When the delivery plate changes its tilt angle, the first buffer will deform, thereby providing a first-weight damping buffering effect.

[0026] The telescopic structure formed by the sliding rods and cylinder provides a secondary damping effect as the launch plate's tilt angle changes. As the launch plate tilts, the sliding rods correspondingly stretch or compress within the cylinder's sliding space. Because there are two sets of sliding rods and cylinders, one set is in tension or compression regardless of the launch plate's tilt, providing a stable damping effect.

[0027] The telescopic structure formed by the sliding rod and the cylinder, along with the deformation of the first buffer, provides a stable damping force, effectively mitigating impact and vibration during the tilting of the delivery platform. Regardless of the direction the delivery platform tilts, the stabilization component provides effective damping, ensuring the stability and delivery accuracy of the device. This achieves a dual damping effect when the delivery platform tilts, further improving the stability and delivery accuracy of the device.

[0028] Furthermore, the first buffer is a torsion spring, one end of which is connected to a portion of the cylinder close to the opening, and the other end of which is connected to an end of the sliding rod away from the cylinder.

[0029] The torsion spring serves as the first buffer, with one end connected to the portion of the cylinder near the opening and the other end connected to the end of the sliding rod away from the cylinder. This allows the torsion spring to provide a stable damping effect as the inclination angle of the launch plate changes. One end of the torsion spring is fixedly connected to the portion of the cylinder near the opening, and this connection point can be considered the fixed end of the torsion spring. The other end is connected to the end of the sliding rod away from the cylinder. This connection point moves as the sliding rod expands and contracts, and can therefore be considered the movable end of the torsion spring.

[0030] When the launch plate remains horizontal, the torsion spring is unstressed, and the relative position between its two connection points remains unchanged. However, when the launch plate begins to tilt, the sliding rod undergoes a stretching or compressing motion within the sliding space of the cylinder, causing the movable end of the torsion spring to rotate relative to the fixed end. This rotation of the torsion spring generates a restoring torque that attempts to pull the sliding rod back to its original position, thereby slowing the speed change during the launch plate's tilt. This restoring torque is the damping force provided by the torsion spring, which helps stabilize the launch plate's tilt angle and prevents sudden acceleration or deceleration.

[0031] In addition to the damping force provided by the torsion spring, the telescopic structure between the sliding rod and the cylinder creates an additional damping effect. As the sliding rod expands and contracts within the cylinder, it generates friction with the inner wall of the cylinder, which also slows down the speed change during the tilting of the delivery plate. Therefore, the torsion spring and the telescopic structure of the sliding rod / cylinder in the stabilization assembly together form a dual damping and buffering system that effectively absorbs and mitigates the impact and vibration during the tilting of the delivery plate, improving the stability of the device and delivery accuracy.

[0032] Furthermore, the limiting component includes:

[0033] The guide plates are arranged on both sides of the driver, and each guide plate is provided with a sliding groove for the connecting seat to slide;

[0034] The second buffer member is provided on the guide vertical plate, and its two ends are respectively connected to the guide vertical plate and the connecting seat;

[0035] A guide limiting structure is provided on the guide vertical plate and cooperates with the connecting seat to limit and guide the connecting seat;

[0036] Wherein, a mounting groove for mounting the second buffer member is provided on the guide vertical plate, and the mounting groove is located below the sliding groove.

[0037] The limiting assembly is mainly composed of a guide vertical plate, a second buffer and a guide limiting structure, which together realize the limitation, guidance and stabilization of the movement process of the connecting seat. The guide vertical plates are arranged on both sides of the driver, providing sliding tracks for the connecting seat. Each guide vertical plate is provided with a sliding groove for the connecting seat to slide. The sliding groove ensures the linearity and stability of the connecting seat during the up and down movement. The second buffer is arranged on the guide vertical plate, and its two ends are respectively connected to the guide vertical plate and the connecting seat. This buffer plays a role in further stabilizing the movement of the connecting seat. When the connecting seat slides in the sliding groove, the second buffer will absorb and reduce the impact and vibration of the connecting seat, making the movement of the connecting seat smoother. An installation groove for installing the second buffer is provided on the guide vertical plate. This installation groove is located below the sliding groove, ensuring that the second buffer can work normally without interfering with the sliding of the connecting seat.

[0038] The guide limit structure is arranged on the guide vertical plate and cooperates with the connecting seat to ensure that the connecting seat will not deviate from the predetermined track during the sliding process, while limiting the maximum movement range of the connecting seat to prevent angular deviation due to excessive movement.

[0039] Furthermore, the second buffer member includes a first damper and a second damper arranged at intervals and a tension spring arranged between the first damper and the second damper. The telescopic ends of the first damper and the second damper are connected to the connecting seat, and a telescopic groove for the tension spring to be extended and retracted is also provided between the two mounting grooves.

[0040] The second buffer is mainly composed of a first damper, a second damper and a tension spring, which together provide a stable and adjustable damping effect for the movement of the connecting seat. The first damper and the second damper are arranged at intervals on the guide vertical plate, and their telescopic ends are connected to the connecting seat. When the connecting seat slides in the sliding groove of the guide vertical plate, the first damper and the second damper will perform corresponding telescopic movements according to the movement speed and direction of the connecting seat. The telescopic movement of the damper will generate a damping force, thereby slowing down the movement speed of the connecting seat, thereby achieving buffering and stabilization of the movement of the connecting seat. The tension spring is arranged between the first damper and the second damper, and its two ends are respectively connected to the connecting seat and the bottom of the telescopic groove. It can provide an additional restoring force. When the connecting seat moves, the tension spring will expand and contract with the expansion and contraction of the damper, thereby generating a tensile force opposite to the movement direction of the connecting seat. This tensile force helps to maintain the stability of the connecting seat and prevent it from shaking or deviating from the predetermined track due to external interference during movement.

[0041] At the same time, mounting grooves for installing the first damper and the second damper are provided on the guide vertical plate. These mounting grooves are located below the sliding groove, ensuring that the dampers can work normally without interfering with the sliding of the connecting seat. In addition, a telescopic groove for the tension spring to expand and contract is provided between the two mounting grooves. This telescopic groove provides sufficient space for the tension spring to freely expand and contract during the movement of the connecting seat without any hindrance. The first damper, the second damper and the tension spring in the second buffer member work together to provide a stable and adjustable damping and buffering effect for the movement of the connecting seat, which not only improves the overall performance and reliability of the equipment, but also reduces the risk of inaccurate bobbin delivery due to unstable movement of the connecting seat. In addition, by adjusting the damping coefficient of the damper and the stiffness of the tension spring, the buffering effect of the second buffer member can be precisely controlled according to actual needs to meet the buffering requirements under different working conditions.

[0042] Furthermore, the guide limiting structure includes:

[0043] A first guide groove is provided on the sliding groove;

[0044] a second guide groove, provided on the sliding groove and symmetrical to the first guide groove with respect to the telescopic groove;

[0045] A first sliding block is provided on the connecting seat and is slidably engaged with the first guide groove;

[0046] A second sliding block is provided on the connecting seat and is slidably engaged with the second guide groove;

[0047] The first slider and the second slider are both rotatably arranged on the connecting seat, and a cylinder is arranged at the bottom of each of the first slider and the second slider, and the cylinder is slidably matched with the first guide groove and the second guide groove.

[0048] The first and second guide grooves are respectively disposed on the sliding grooves of the guide vertical plate and are symmetrical about the telescopic groove. These two guide grooves provide stable sliding tracks for the first and second sliders on the connecting base, ensuring the linearity and stability of the connecting base during movement. The first and second sliders are respectively disposed on the connecting base and slidably engage with the first and second guide grooves, allowing the connecting base to be guided and restricted by the guide grooves during movement, preventing it from deviating from the predetermined track. Furthermore, the first and second sliders are both rotatably disposed on the connecting base, allowing them to change angles within a certain range to accommodate complex situations that the connecting base may encounter during movement, such as subsequent engagement with the limit angle.

[0049] The bottom of the first slider and the second slider are both provided with a cylinder, which is located at the rotating connection and the end of the slider. The cylinder slides with the first guide groove and the second guide groove, which improves the sliding smoothness between the slider and the guide groove, ensuring that the slider will not separate from the guide groove during movement, and also makes the subsequent first slider, second slider and limit angle cooperate more smoothly.

[0050] Furthermore, the rotatable arrangement allows the first and second sliders to change angles within a certain range, thereby coordinating with subsequent limit angles, allowing the connector to flexibly adapt to different tilt angles and limit requirements during movement. When the connector reaches the tilt angle at its extreme position, the first and second sliders can rotate to cooperate with the corresponding limit angles, ensuring that the connector remains accurately in the predetermined position and providing stability.

[0051] Furthermore, the guide limiting structure further includes:

[0052] A limiting protrusion is provided on the sliding groove and is located between the first guide groove and the second guide groove;

[0053] The limiting corner includes a first corner provided at the end of the first guide groove and a second corner provided at the end of the second guide groove, and the first slider and the second slider cooperate with the first corner and the second corner respectively;

[0054] The limiting groove includes a left half groove provided on the first slider and a right half groove provided on the second slider;

[0055] The limiting guide member includes a first elastic member provided on the first slider and a second elastic member provided on the second slider;

[0056] A locking groove adapted to the limiting protrusion is formed between the limiting guide and the limiting groove, and contact grooves for contacting the limiting protrusion are provided at both ends of the first elastic member and the second elastic member.

[0057] During adjustment, one driver extends and the other contracts. Under normal circumstances, that is, when the delivery plate is in a horizontal state, the connecting seat is located between the limiting angle and the limiting protrusion. However, when the delivery is completed and the delivery plate contracts, the limiting protrusion is set. When the connecting seat moves downward, the first and second sliders disengage from the limiting angle. At this time, the first and second sliders approach each other, and the first and second elastic members also approach and contact each other. As the first and second sliders gradually move downward, the limiting protrusion contacts the contact groove and enters the locking groove. At this time, the left and right half grooves clamp the limiting protrusion, and the limiting protrusion contacts the contact groove near the locking groove. At this time, the positions of the first and second sliders are fixed by the limiting protrusion and cannot move further downward. That is, the position of the connecting seat is fixed and cannot move further downward. At this time, the angle of the delivery plate is exactly at the lowest point, avoiding excessive adjustment of the angle.

[0058] In the extended state, when the connecting seat moves upward, it drives the first slider and the second slider to move upward. Under the influence of the upward force, the first slider and the second slider rotate outward respectively, and the limiting protrusion disengages from the locking groove. As the connecting seat gradually moves upward until it moves to the top, the first slider and the second slider enter the first corner and the second corner respectively. The angles of the first corner and the second corner are bent outward, which can hook the cylinders at the upper ends of the first slider and the second slider, thereby limiting the positions of the first slider and the second slider. At this time, the connecting seat cannot move upward, and the angle of the launch plate is exactly at the highest position, avoiding excessive adjustment of the angle.

[0059] In addition, since the first elastic member and the second elastic member of the limiting guide are both elastic, even if the two contact before contacting the limiting protrusion, they will not hinder the movement of the first slider and the second slider. When the limiting protrusion contacts the first elastic member and the second elastic member, it will ensure the normal movement of the connecting seat by compressing the two.

[0060] Furthermore, the limiting protrusion is cylindrical, and there is a gap between the top of the limiting protrusion and the inner side of the connecting seat and the tension spring.

[0061] The cylindrical setting can make the limiting protrusion better contact with the first elastic part and the second elastic part, and can also be better clamped by the left half groove and the right half groove, so as to better cooperate with the locking groove. At the same time, by setting a gap between the top of the limiting protrusion and the inner side of the connecting seat and the tension spring, it can avoid collision with the limiting protrusion when the connecting seat moves and when the tension spring expands and contracts, thereby ensuring smooth movement.

[0062] The beneficial effects of this application are:

[0063] 1. The adjustment device allows for smoother angle adjustment of the delivery plate, avoiding the problem of rapid changes in the delivery plate angle caused by the extension and retraction of the two telescopic cylinders. This smooth adjustment method reduces the shaking of the bobbin during delivery and improves delivery accuracy. The sliding speed of the bobbin on the delivery slide is also more controllable, ensuring that the bobbin can accurately dock with the receiving slot on the receiving device, thereby greatly improving the success rate of bobbin delivery.

[0064] 2. The telescopic structure formed by the sliding rods and the cylinder provides a secondary damping effect when the launch plate's tilt angle changes. When the launch plate tilts, the sliding rods will correspondingly stretch or compress within the sliding space of the cylinder. Because there are two sets of sliding rods and cylinders, located on either side of the rotating shaft, no matter which direction the launch plate tilts, one set of sliding rods and cylinders will be in a state of tension or compression, providing a stable damping effect.

[0065] 3. The first damper, the second damper and the tension spring in the second buffer member work together to provide a stable and adjustable damping effect for the movement of the connecting seat, which not only improves the overall performance and reliability of the equipment, but also reduces the risk of inaccurate bobbin delivery caused by unstable movement of the connecting seat;

[0066] 4. The first and second sliders are rotatable, allowing the angles to be changed within a certain range, thereby cooperating with the limit angles, allowing the connector to flexibly adapt to different tilt angles and limit requirements during movement. When the connector reaches the limit tilt angle, the first and second sliders can rotate to cooperate with the corresponding limit angles, ensuring that the connector can accurately stay in the predetermined position and play a stabilizing role.

[0067] 5. Through the cooperation of the limiting protrusion, the limiting groove and the limiting guide, the position of the first slider and the second slider can be limited, that is, the position of the connecting seat can be fixed so that it cannot move further downward, thereby avoiding excessive adjustment of the angle of the delivery plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0068] Figure 1 It is a structural schematic diagram of the present invention;

[0069] Figure 2 Is a schematic diagram of the connection structure of the present invention, the delivery device and the adjustment device;

[0070] Figure 3 yes Figure 1 A magnified view of middle A;

[0071] Figure 4 is a cross-sectional view of a stabilizing assembly of the present invention;

[0072] Figure 5 It is a structural schematic diagram of the regulating device of the present invention;

[0073] Figure 6 Schematic diagram of the internal structure of the regulating device of the present invention;

[0074] Figure 7 is a structural schematic diagram of the internal structure of the regulating device of the present invention from another perspective;

[0075] Figure 8 It is a structural diagram of the coordination between the adjusting device and the connecting seat.

[0076] The accompanying drawings are marked as follows: 100, base; 110, delivery device; 111, support rod; 112, delivery plate; 113, delivery slide; 120, receiving device; 200, adjustment device; 210, drive; 220, connecting seat; 230, connecting rod; 300, stabilizing assembly; 310, upper seat body; 320, lower seat body; 321, rotating shaft; 330, cylinder; 331, sliding space; 340, sliding rod; 350, first buffer; 400, limiting assembly; 410, guide plate; 411, sliding groove; 412, mounting groove; 420, second buffer Part; 421, first damper; 422, second damper; 423, tension spring; 424, telescopic slot; 500, guide and limiting structure; 510, first guide slot; 520, second guide slot; 530, first slider; 540, second slider; 550, cylinder; 560, limiting protrusion; 570, limiting corner; 571, first corner; 572, second corner; 580, limiting groove; 581, left half groove; 582, right half groove; 590, limiting guide; 591, first elastic member; 592, second elastic member; 600, locking groove; 610, contact groove. DETAILED DESCRIPTION

[0077] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0078] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first," "second," and the like are generally of the same type, and do not limit the number of objects; for example, the first object can be one or more. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0079] The yarn bobbin delivery device for the yarn covering machine provided in the embodiment of the present application is described in detail below with reference to the accompanying drawings through specific embodiments and their application scenarios.

[0080] Example 1:

[0081] like Figure 1 and Figure 2 As shown, the embodiment of the present application provides a yarn bobbin delivery device for a yarn covering machine, comprising a base 100, a delivery device 110 and a receiving device 120, wherein the delivery device 110 comprises a support rod 111 provided on the base 100, a delivery plate 112 rotatably provided on the support rod 111, and a plurality of delivery slides 113 are provided on the delivery plate 112, and the receiving device 120 is provided on both sides of the delivery device 110 and is used to receive the delivered yarn bobbins; and further comprises an adjusting device 200;

[0082] The adjustment device 200 is provided on both sides of the support rod 111 and is connected to the delivery plate 112, and is used to adjust the inclination angle of the delivery plate 112 and to make the angle adjustment of the delivery plate 112 more stable;

[0083] The adjusting device 200 is disposed on the base 100 , and the top of the adjusting device 200 is hinged to the delivery plate 112 .

[0084] In some implementations of the embodiments of this application, Figure 1As shown, the aforementioned bobbin delivery device for a yarn wrapping machine, with the provision of an adjustment device 200, improves the instability and inaccurate delivery of the bobbins encountered during conventional delivery. The adjustment devices 200 are positioned on either side of the support rod 111 and connected to the delivery plate 112, enabling precise and stable adjustment of the inclination angle of the delivery plate 112. The provision of the adjustment devices 200 ensures smooth adjustment of the delivery plate 112, avoiding the problem of rapid angle changes caused by the extension and retraction of the two telescopic cylinders. This stable adjustment method reduces bobbin shaking during delivery and improves delivery accuracy. Furthermore, because the adjustment device 200 stabilizes the inclination angle of the delivery plate 112, the sliding speed of the bobbin on the delivery chute 113 is more controllable, ensuring that the bobbin accurately docks with the receiving slot on the receiving device 120, thereby significantly improving the success rate of bobbin delivery. Furthermore, the provision of the adjustment device 200 enables the delivery device to accommodate bobbins of varying specifications and weights. By adjusting the inclination angle of the delivery plate 112, it is possible to ensure that the bobbin always maintains a stable sliding speed during the delivery process, thereby avoiding delivery problems caused by different bobbin specifications.

[0085] Example 2:

[0086] An embodiment of the present application provides a yarn bobbin delivery device for a yarn covering machine. In addition to the above-mentioned technical features, the yarn bobbin delivery device for a yarn covering machine in the embodiment of the present application also includes the following technical features.

[0087] like Figures 2 to 4 As shown, the regulating device 200 includes:

[0088] The driver 210 is mounted on the base 100 and has limit assemblies 400 on both sides thereof;

[0089] The connecting seat 220 is provided on the telescopic end of the driver 210 and cooperates with the limiting assembly 400;

[0090] The connecting rod 230 is provided on the connecting base 220, and a stabilizing assembly 300 connected to the bottom of the delivery plate 112 is provided on the top of the connecting rod 230;

[0091] The connecting seat 220 is slidably disposed on the limiting assembly 400 .

[0092] In the embodiment of the present application, the driver 210 is disposed on the base 100 and serves as the power source for the adjustment device 200. Its telescopic end is connected to the connecting rod 230 via the connecting base 220. The limiting assemblies 400 provided on both sides of the driver 210 ensure the stability and accuracy of the connecting base 220 during its up and down movement, preventing the connecting base 220 from deflecting or shaking. The connecting base 220 is slidably disposed on the limiting assemblies 400, allowing the connecting base 220 to move up and down as the driver 210 expands and contracts, while maintaining the linearity and stability of its movement trajectory. The connecting rod 230 is disposed on the connecting base 220, and its top is connected to the bottom of the delivery plate 112 via the stabilizing assembly 300, thereby converting the telescopic movement of the driver 210 into a change in the tilt angle of the delivery plate 112. At the same time, the stabilizing assembly 300 at the top of the connecting rod 230 ensures the stability and firmness of the delivery plate 112 during the change in tilt angle, not only improving the angle adjustment accuracy of the delivery plate 112, but also enhancing the load-bearing capacity of the delivery plate 112 when subjected to stress.

[0093] When the tilt angle of the delivery plate 112 needs to be adjusted, the actuator 210 begins to extend and retract. The extension and retraction of the actuator 210 drives the connecting seat 220 to move up and down on the limiting assembly 400, which in turn drives the connecting rod 230 to move up and down. Because the top of the connecting rod 230 is connected to the bottom of the delivery plate 112 via the stabilizing assembly 300, the up and down movement of the connecting rod 230 translates into a change in the tilt angle of the delivery plate 112. By precisely controlling the extension and retraction amount and speed of the actuator 210, the tilt angle of the delivery plate 112 can be precisely adjusted. The extension and retraction of the actuator 210 can be controlled by a controller, which is conventional and will not be described in detail here.

[0094] Example 3:

[0095] An embodiment of the present application provides a yarn bobbin delivery device for a yarn covering machine. In addition to the above-mentioned technical features, the yarn bobbin delivery device for a yarn covering machine in the embodiment of the present application also includes the following technical features.

[0096] like Figure 3 and Figure 4 As shown, the stabilization assembly 300 includes:

[0097] The upper base 310 is disposed at the bottom of the loading plate 112;

[0098] The lower seat 320 is rotatably connected to the upper seat 310 via a rotating shaft 321;

[0099] The cylinder 330 is provided on the lower base 320 and is arc-shaped. Its cross section is circular and a sliding space 331 is provided inside. One end is closed and the other end is open.

[0100] The sliding rod 340 is provided at the bottom of the delivery plate 112 and is arc-shaped;

[0101] The first buffer member 350 is disposed on the rotating shaft 321 and connected to the cylinder 330 and the sliding rod 340;

[0102] Among them, the cylinder 330 and the sliding rod 340 cooperate with each other, and the sliding rod 340 extends from one end of the delivery plate 112 to the sliding space 331. The two form a telescopic structure and can be telescoped as the angle of the delivery plate 112 changes. There are two groups of sliding rods 340 and cylinder 330, located on both sides of the rotating shaft 321.

[0103] In this embodiment of the present application, the upper body 310 is disposed at the bottom of the delivery plate 112 and is fixedly connected to the delivery plate 112. The lower body 320 is rotatably connected to the upper body 310 via a rotating shaft 321, allowing the upper body 310 (i.e., the delivery plate 112) to change its tilt angle relative to the lower body 320. A cylindrical body 330 is disposed on the lower body 320 and has a curved shape. Its cross-section is circular, and it defines a sliding space 331. One end of the cylindrical body 330 is closed, while the other end has an opening for accommodating a sliding rod 340. The sliding rod 340 is disposed at the bottom of the delivery plate 112 and has a curved shape that matches the curved shape of the cylindrical body 330. The end of the sliding rod 340 away from the delivery plate 112 extends into the sliding space 331 of the cylindrical body 330, forming a telescopic structure. The first buffer member 350 is disposed on the rotating shaft 321 and is connected to the cylindrical body 330 and the sliding rod 340. When the delivery plate 112 changes its tilt angle, the first buffer member 350 will deform, thereby providing a first-level damping effect.

[0104] The telescopic structure formed by the sliding rods 340 and the cylinder 330 provides a secondary damping effect when the delivery plate 112 tilts. As the delivery plate 112 tilts, the sliding rods 340 undergo corresponding extension or compression within the sliding space 331 of the cylinder 330. Because two sets of sliding rods 340 and cylinder 330 are provided, located on either side of the rotating shaft 321, no matter which direction the delivery plate 112 tilts, one set of sliding rods 340 and cylinder 330 will be in an extended or compressed state, providing a stable damping effect.

[0105] The telescopic structure formed by the sliding rod 340 and the cylindrical body 330, as well as the deformation of the first buffer member 350, provides a stable damping force, effectively mitigating impact and vibration during the tilting of the delivery plate 112. Regardless of the direction in which the delivery plate 112 tilts, the stabilizing assembly 300 provides effective damping and buffering, ensuring the stability and delivery accuracy of the device. This achieves a dual damping and buffering effect when the delivery plate 112 tilts, further improving the stability and delivery accuracy of the device.

[0106] Furthermore, the first buffer member 350 is a torsion spring, one end of which is connected to a portion of the cylinder 330 close to the opening, and the other end of which is connected to an end of the sliding rod 340 away from the cylinder 330 .

[0107] A torsion spring serves as the first buffer member 350, one end of which is connected to the portion of the cylinder 330 near the opening and the other end to the end of the sliding rod 340 away from the cylinder 330. This allows the torsion spring to provide a stable damping effect when the tilt angle of the delivery plate 112 changes. One end of the torsion spring is fixedly connected to the portion of the cylinder 330 near the opening, and this connection point can be considered the fixed end of the torsion spring. The other end is connected to the end of the sliding rod 340 away from the cylinder 330. This connection point moves as the sliding rod 340 expands and contracts, and can therefore be considered the movable end of the torsion spring.

[0108] When the delivery plate 112 remains in a horizontal position, the torsion spring is in an unstressed state, and the relative position between its two connection points remains unchanged. However, when the delivery plate 112 begins to tilt, the sliding rod 340 will perform a stretching or compressing movement in the sliding space 331 of the cylinder 330, causing the movable end of the torsion spring to rotate relative to the fixed end. The rotation of the torsion spring will generate a restoring torque, which will try to pull the sliding rod 340 back to its original position, thereby slowing down the speed change during the tilting process of the delivery plate 112. This restoring torque is the damping force provided by the torsion spring, which helps to stabilize the tilt angle of the delivery plate 112 and prevent it from suddenly accelerating or decelerating.

[0109] In addition to the damping force provided by the torsion spring, the telescopic structure between the sliding rod 340 and the cylinder 330 creates another layer of damping and buffering. As the sliding rod 340 expands and contracts within the cylinder 330, it generates friction with the inner wall of the cylinder 330. This friction also slows down the speed change during the tilting of the delivery plate 112. Therefore, the torsion spring in the stabilization assembly 300 and the telescopic structure of the sliding rod 340 / cylinder 330 together form a dual damping and buffering system that effectively absorbs and mitigates the impact and vibration during the tilting of the delivery plate 112, improving the stability of the device and delivery accuracy.

[0110] Example 4:

[0111] An embodiment of the present application provides a yarn bobbin delivery device for a yarn covering machine. In addition to the above-mentioned technical features, the yarn bobbin delivery device for a yarn covering machine in the embodiment of the present application also includes the following technical features.

[0112] like Figures 5 to 8 As shown, the limiting assembly 400 includes:

[0113] The guide plates 410 are provided on both sides of the driver 210. Each guide plate 410 is provided with a sliding groove 411 for the connecting seat 220 to slide.

[0114] The second buffer member 420 is disposed on the guide plate 410, with its two ends connected to the guide plate 410 and the connecting seat 220 respectively;

[0115] The guide and limiting structure 500 is provided on the guide vertical plate 410 and cooperates with the connecting seat 220 to limit and guide the connecting seat 220;

[0116] The guide vertical plate 410 is provided with a mounting groove 412 for mounting the second buffer member 420 , and the mounting groove 412 is located below the sliding groove 411 .

[0117] In the embodiment of the present application, the limiting assembly 400 is mainly composed of a guide plate 410, a second buffer 420, and a guide limiting structure 500, which together achieve the purpose of limiting, guiding, and stabilizing the movement of the connecting seat 220. The guide plates 410 are arranged on both sides of the driver 210, providing a sliding track for the connecting seat 220. Each guide plate 410 is provided with a sliding groove 411 for the connecting seat 220 to slide. The sliding groove 411 ensures the linearity and stability of the connecting seat 220 during the up and down movement. The second buffer 420 is arranged on the guide plate 410, and its two ends are respectively connected to the guide plate 410 and the connecting seat 220. This buffer serves to further stabilize the movement of the connecting seat 220. When the connecting seat 220 slides in the sliding groove 411, the second buffer 420 absorbs and reduces the impact and vibration of the connecting seat 220, making the movement of the connecting seat 220 more stable. The guide vertical plate 410 is provided with a mounting groove 412 for mounting the second buffer member 420 . The mounting groove 412 is located below the sliding groove 411 , ensuring that the second buffer member 420 can work normally without interfering with the sliding of the connecting seat 220 .

[0118] The guide limit structure 500 is arranged on the guide vertical plate 410 and cooperates with the connecting seat 220 to ensure that the connecting seat 220 will not deviate from the predetermined track during the sliding process, while limiting the maximum movement range of the connecting seat 220 to prevent angular deviation due to excessive movement.

[0119] Furthermore, the second buffer member 420 includes a first damper 421 and a second damper 422 arranged at intervals and a tension spring 423 arranged between the first damper 421 and the second damper 422. The telescopic ends of the first damper 421 and the second damper 422 are connected to the connecting seat 220, and a telescopic groove 424 for the tension spring 423 to be extended and retracted is also provided between the two mounting grooves 412.

[0120] In some embodiments of the present application, the second buffer member 420 is primarily composed of a first damper 421, a second damper 422, and a tension spring 423, which together provide a stable and adjustable damping effect for the movement of the connecting base 220. The first damper 421 and the second damper 422 are spaced apart on the guide plate 410, and their telescopic ends are connected to the connecting base 220. When the connecting base 220 slides within the sliding groove 411 of the guide plate 410, the first damper 421 and the second damper 422 perform corresponding telescopic movement based on the speed and direction of movement of the connecting base 220. The telescopic movement of the dampers generates a damping force, thereby slowing the movement of the connecting base 220, thereby achieving buffering and stabilization of the movement of the connecting base 220. The tension spring 423 is disposed between the first damper 421 and the second damper 422, with its ends connected to the connecting base 220 and the bottom of the telescopic groove 424, respectively. An additional restoring force can be provided. When the connecting seat 220 moves, the tension spring 423 will expand and contract as the damper expands and contracts, thereby generating a pulling force opposite to the moving direction of the connecting seat 220. This pulling force helps to maintain the stability of the connecting seat 220 and prevents it from shaking or deviating from the predetermined track due to external interference during movement.

[0121] At the same time, mounting grooves 412 for mounting the first damper 421 and the second damper 422 are provided on the guide vertical plate 410. These mounting grooves 412 are located below the sliding groove 411, ensuring that the dampers can work normally without interfering with the sliding of the connecting seat 220. In addition, a telescopic groove 424 for the tension spring 423 to expand and contract is provided between the two mounting grooves 412. This telescopic groove 424 provides sufficient space for the tension spring 423 to freely expand and contract during the movement of the connecting seat 220 without any hindrance. The first damper 421, the second damper 422 and the tension spring 423 in the second buffer member 420 work together to provide a stable and adjustable damping effect for the movement of the connecting seat 220, which not only improves the overall performance and reliability of the equipment, but also reduces the risk of inaccurate bobbin delivery due to unstable movement of the connecting seat 220. In addition, by adjusting the damping coefficient of the damper and the stiffness of the tension spring 423, the buffering effect of the second buffer member 420 can be precisely controlled according to actual needs to meet the buffering requirements under different working conditions.

[0122] Example 5:

[0123] An embodiment of the present application provides a yarn bobbin delivery device for a yarn covering machine. In addition to the above-mentioned technical features, the yarn bobbin delivery device for a yarn covering machine in the embodiment of the present application also includes the following technical features.

[0124] like Figures 5 to 8 As shown, the guide and limiting structure 500 includes:

[0125] A first guide groove 510 is provided on the sliding groove 411;

[0126] The second guide groove 520 is provided on the sliding groove 411 and is symmetrical with the first guide groove 510 about the telescopic groove 424;

[0127] A first slider 530 is disposed on the connecting seat 220 and slidably engages with the first guide groove 510;

[0128] The second slider 540 is disposed on the connecting seat 220 and slidably engages with the second guide groove 520;

[0129] The first slider 530 and the second slider 540 are both rotatably disposed on the connecting seat 220 , and both the first slider 530 and the second slider 540 are provided with 550 at the bottom, and the cylinder 550 is slidably engaged with the first guide groove 510 and the second guide groove 520 .

[0130] In the embodiment of the present application, the first guide groove 510 and the second guide groove 520 are respectively arranged on the sliding groove 411 of the guide vertical plate 410, and the two are symmetrical about the telescopic groove 424. These two guide grooves provide a stable sliding track for the first slider 530 and the second slider 540 on the connecting seat 220, ensuring the linearity and stability of the connecting seat 220 during movement. The first slider 530 and the second slider 540 are respectively arranged on the connecting seat 220 and slide in conjunction with the first guide groove 510 and the second guide groove 520, so that the connecting seat 220 can be guided and restricted by the guide grooves during movement, preventing it from deviating from the predetermined track. At the same time, the first slider 530 and the second slider 540 are both rotatably arranged on the connecting seat 220, which allows them to change angles within a certain range to adapt to complex situations that the connecting seat 220 may encounter during movement, such as subsequent engagement with the limit angle 570.

[0131] A cylinder 550 is provided at the bottom of the first slider 530 and the second slider 540. The cylinder 550 is located at the rotating connection and the end of the slider. The cylinder 550 slides with the first guide groove 510 and the second guide groove 520, which improves the sliding smoothness between the slider and the guide groove, ensuring that the slider will not separate from the guide groove during movement, and also allows the subsequent first slider 530, the second slider 540 and the limit corner 570 to cooperate more smoothly.

[0132] Furthermore, by being rotatable, the first and second sliders 530, 540 can vary their angles within a certain range, thereby cooperating with the subsequent limiting angle 570, allowing the connector 220 to flexibly adapt to different tilt angles and limiting requirements during movement. When the connector 220 reaches the tilt angle at the extreme position, the first and second sliders 530, 540 can rotate to cooperate with the corresponding limiting angle 570, ensuring that the connector 220 can accurately stay in the predetermined position and provide stability.

[0133] Example 6:

[0134] An embodiment of the present application provides a yarn bobbin delivery device for a yarn covering machine. In addition to the above-mentioned technical features, the yarn bobbin delivery device for a yarn covering machine in the embodiment of the present application also includes the following technical features.

[0135] like Figures 5 to 8 As shown, the guide and limiting structure 500 further includes:

[0136] The limiting protrusion 560 is provided on the sliding groove 411 and is located between the first guide groove 510 and the second guide groove 520;

[0137] The limiting corner 570 includes a first corner 571 provided at the end of the first guide groove 510 and a second corner 572 provided at the end of the second guide groove 520. The first slider 530 and the second slider 540 cooperate with the first corner 571 and the second corner 572 respectively.

[0138] The limiting groove 580 includes a left half groove 581 provided on the first slider 530 and a right half groove 582 provided on the second slider 540;

[0139] The limiting guide member 590 includes a first elastic member 591 provided on the first slider 530 and a second elastic member 592 provided on the second slider 540;

[0140] A locking groove 600 adapted to the limiting protrusion 560 is formed between the limiting guide 590 and the limiting groove 580 , and contact grooves 610 are provided at both ends of the first elastic member 591 and the second elastic member 592 for facilitating contact with the limiting protrusion 560 .

[0141] In the embodiment of the present application, during adjustment, one of the drivers 210 extends and the other contracts. Under normal circumstances, that is, when the delivery plate 112 is in a horizontal state, the connecting seat 220 is located between the limiting corner 570 and the limiting protrusion 560. When the first and second sliders 530 and 540 are in contact with each other, the first and second elastic members 591 and 592 are also in contact with each other. As the first and second sliders 530 and 540 gradually move downward, the limiting protrusion 560 contacts the contact groove 610 and enters the locking groove 600. At this time, the left half groove 581 and the right half groove 582 clamp the limiting protrusion 560, and the limiting protrusion 560 contacts the contact groove 610 near the side of the locking groove 600. At this time, the positions of the first and second sliders 530 and 540 are fixed by the limiting protrusion 560 and cannot move further downward, that is, the position of the connecting seat 220 is fixed and cannot move further downward. At this time, the angle of the delivery plate 112 is just at the lowest point, avoiding excessive adjustment of the angle.

[0142] When the connecting seat 220 is extended, the first slider 530 and the second slider 540 are driven to move upward. Under the influence of the upward force, the first slider 530 and the second slider 540 are respectively rotated outward, and the limiting protrusion 560 is disengaged from the locking groove 600. As the connecting seat 220 gradually moves upward until it moves to the top, the first slider 530 and the second slider 540 enter the first corner 571 and the second corner 572 respectively. The angles of the first corner 571 and the second corner 572 are bent outward, which can hook the cylinder 550 at the upper end of the first slider 530 and the second slider 540, thereby limiting the position of the first slider 530 and the second slider 540. At this time, the connecting seat 220 cannot move upward, and the angle of the delivery plate 112 is exactly at the highest point, avoiding excessive adjustment of the angle.

[0143] In addition, since the first elastic member 591 and the second elastic member 592 of the limiting guide member 590 are both elastic, even if the two are in contact before contacting the limiting protrusion 560, they will not hinder the movement of the first slider 530 and the second slider 540. When the limiting protrusion 560 contacts the first elastic member 591 and the second elastic member 592, it will ensure the normal movement of the connecting seat 220 by compressing the two.

[0144] Furthermore, the limiting protrusion 560 is cylindrical, and there is a gap between the top of the limiting protrusion 560 and the inner side of the connecting seat 220 and the tension spring 423.

[0145] In some embodiments of the present application, the cylindrical setting can enable the limiting protrusion 560 to better contact the first elastic member 591 and the second elastic member 592, and can also be better clamped by the left half groove 581 and the right half groove 582, so as to better cooperate with the locking groove 600. At the same time, by providing a gap between the top of the limiting protrusion 560 and the inner side of the connecting seat 220 and the tension spring 423, it can avoid collision with the limiting protrusion 560 when the connecting seat 220 moves and the tension spring 423 when it expands and contracts, thereby ensuring smooth movement.

[0146] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0147] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A yarn bobbin delivery device for a yarn covering machine, comprising a base (100), a delivery device (110) and a receiving device (120), wherein the delivery device (110) comprises a support rod (111) arranged on the base (100), a delivery plate (112) rotatably arranged on the support rod (111), a plurality of delivery slides (113) being arranged on the delivery plate (112), and the receiving device (120) being arranged on both sides of the delivery device (110) and used for receiving the delivered yarn bobbins; characterized in that, Also included is an adjustment device (200); The adjusting device (200) is arranged on both sides of the support rod (111) and connected to the delivery plate (112), and is used to adjust the inclination angle of the delivery plate (112), and can make the angle adjustment of the delivery plate (112) more stable; The adjusting device (200) is arranged on the base (100), and the top thereof is hinged to the delivery plate (112); The regulating device (200) comprises: The driver (210) is arranged on the base (100), and has limit assemblies (400) arranged on both sides thereof; A connecting seat (220) is provided on the telescopic end of the driver (210) and cooperates with the limiting assembly (400); A connecting rod (230) is provided on the connecting seat (220), and a stabilizing component (300) connected to the bottom of the delivery plate (112) is provided on the top of the connecting rod; Wherein, the connecting seat (220) is slidably arranged on the limiting assembly (400); The stabilizing assembly (300) comprises: An upper seat (310) is disposed at the bottom of the delivery plate (112); The lower seat (320) is rotatably connected to the upper seat (310) via a rotating shaft (321); The cylinder (330) is arranged on the lower seat (320) and is arc-shaped. Its cross section is circular, and a sliding space (331) is provided inside. One end is closed and the other end is opened. A sliding rod (340) is provided at the bottom of the delivery plate (112) and is arc-shaped; A first buffer member (350) is disposed on the rotating shaft (321) and is connected to the cylinder (330) and the sliding rod (340); The cylinder (330) and the sliding rod (340) cooperate with each other, and one end of the sliding rod (340) away from the delivery plate (112) extends into the sliding space (331). The two form a telescopic structure and can be telescoped as the angle of the delivery plate (112) changes. The sliding rod (340) and the cylinder (330) are both provided with two groups, which are located on both sides of the rotating shaft (321).

2. The yarn bobbin delivery device for a yarn covering machine according to claim 1, characterized in that: The first buffer (350) is a torsion spring, one end of which is connected to a portion of the cylinder (330) close to the opening, and the other end of which is connected to an end of the sliding rod (340) away from the cylinder (330).

3. The yarn bobbin feeding device for a yarn covering machine according to claim 2, characterized in that: The limiting assembly (400) comprises: Guide vertical plates (410) are arranged on both sides of the driver (210), and each guide vertical plate (410) is provided with a sliding groove (411) for the connecting seat (220) to slide; A second buffer member (420) is disposed on the guide vertical plate (410), with two ends thereof respectively connected to the guide vertical plate (410) and the connecting seat (220); A guide limiting structure (500) is provided on the guide vertical plate (410) and cooperates with the connecting seat (220) to limit and guide the connecting seat (220); Wherein, a mounting groove (412) for mounting the second buffer member (420) is provided on the guide vertical plate (410), and the mounting groove (412) is located below the sliding groove (411).

4. The yarn bobbin delivery device for a yarn covering machine according to claim 3, characterized in that: The second buffer member (420) includes a first damper (421) and a second damper (422) arranged at intervals, and a tension spring (423) arranged between the first damper (421) and the second damper (422); the telescopic ends of the first damper (421) and the second damper (422) are connected to the connecting seat (220), and a telescopic groove (424) for the tension spring (423) to be telescopic is further provided between the two mounting grooves (412).

5. The yarn bobbin feeding device for a yarn covering machine according to claim 4, characterized in that: The guide and limiting structure (500) comprises: A first guide groove (510) is provided on the sliding groove (411); A second guide groove (520) is provided on the sliding groove (411) and is symmetrical with the first guide groove (510) about the telescopic groove (424); A first sliding block (530) is disposed on the connecting seat (220) and is slidably engaged with the first guide groove (510); A second sliding block (540) is disposed on the connecting seat (220) and is slidably engaged with the second guide groove (520); The first slider (530) and the second slider (540) are both rotatably arranged on the connecting seat (220), and the first slider (530) and the second slider (540) are both provided with a cylinder (550) at the bottom, and the cylinder (550) is slidably matched with the first guide groove (510) and the second guide groove (520).

6. The yarn bobbin placing device for a yarn covering machine according to claim 5, characterized in that: The guide and limiting structure (500) further includes: A limiting protrusion (560) is provided on the sliding groove (411) and is located between the first guide groove (510) and the second guide groove (520); The limiting corner (570) includes a first corner (571) provided at the end of the first guide groove (510) and a second corner (572) provided at the end of the second guide groove (520); the first slider (530) and the second slider (540) respectively cooperate with the first corner (571) and the second corner (572); The limiting groove (580) includes a left half groove (581) provided on the first slider (530) and a right half groove (582) provided on the second slider (540); A position limiting guide member (590) includes a first elastic member (591) provided on the first slider (530) and a second elastic member (592) provided on the second slider (540); A locking groove (600) adapted to the limiting protrusion (560) is formed between the limiting guide (590) and the limiting groove (580), and contact grooves (610) are provided at both ends of the first elastic member (591) and the second elastic member (592) for facilitating contact with the limiting protrusion (560).

7. The yarn bobbin placing device for a yarn covering machine according to claim 6, characterized in that: The limiting protrusion (560) is in the shape of a cylinder (550), and there is a gap between the top of the limiting protrusion (560), the inner side of the connecting seat (220), and the tension spring (423).

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