A flexible connection self-resetting device for a spinning frame yarn joint

Abstract

The utility model discloses a flexible connection self-reset device of spinning frame yarn joint, the flexible connection self-reset device includes first fixed plate and second fixed plate, and the junction of first fixed plate and second fixed plate is equipped with the gap of through -going to reduce the thickness of first fixed plate and second fixed plate junction, and the end of first fixed plate away from the gap is with the base of manipulator and adopts bolt fixed connection, and the end of second fixed plate away from the gap is equipped with spring support, and spring support is through reset spring and base end part's spring fixed bolt connection. Advantageous effects are: the reset spring is used to be connected with the base elasticity to the second fixed plate, makes manipulator when with the steel ring or the yarn pipe and takes place the touch, and first fixed plate because keeps stationary, and second fixed plate can continue to move under the drive of mechanical arm, and through the flexible deformation of gap and the elastic tensile absorption of reset spring, avoids rigid impact, and carries out reset.

Description

Technical Field

[0001] This utility model belongs to the technical field of yarn threading after yarn breakage in ring spinning machines, and particularly relates to a flexible connection self-resetting device for yarn joints in ring spinning machines. Background Technology

[0002] This utility model is an improvement based on Chinese invention patent CN113279093A, which describes an automatic yarn threading method for the steel wire ring of a ring spinning machine and the yarn clamping device in the yarn threading device.

[0003] Chinese invention patent CN113279093A discloses an automatic yarn threading method and device for a ring spinning machine, which states that "the yarn feeder includes at least two separate yarn clamping devices, the two clamping devices are fixed on the same fixed base, the fixed base is provided with a connecting part fixed on the robotic arm, and the two yarn clamping devices respectively clamp the two ends of the yarn to form the yarn threading part." The patent further states that "the first venturi tube sucks in the yarn, which, after passing through the yarn fixing device, enters the second venturi tube and is ejected from the blasting nozzle. After the yarn end contacts the yarn tube, it wraps around the yarn tube." During this process, the yarn fixing device inevitably comes into contact with the ring, yarn tube, or machine frame. Because the yarn fixing device is rigid, any collision will impact the robotic arm, and frequent impacts will damage the robotic arm, yarn tube, or ring. Summary of the Invention

[0004] The purpose of this utility model embodiment is to provide a flexible connection self-resetting device for yarn splices of a spinning machine, which aims to solve the technical problem that when the yarn is threaded after a yarn breakage, the yarn fixing device will inevitably come into contact with the ring, yarn tube or frame. Since the yarn fixing device is rigid, once a collision occurs, it will impact the robot arm. Frequent impacts will damage the robot arm, yarn tube or ring.

[0005] The present invention is implemented as follows: A flexible self-resetting device for yarn splices on a spinning machine is disclosed. The device includes a first fixing plate and a second fixing plate. A through notch is provided at the connection between the first and second fixing plates to reduce the thickness of the connection. The end of the first fixing plate away from the notch is bolted to the base of a robotic arm. A spring bracket is provided at the end of the second fixing plate away from the notch, and the spring bracket is connected to a spring fixing bolt at the end of the base via a reset spring. A connector is fixed to the top of the second fixing plate and is fixedly connected to the end of the robotic arm.

[0006] Furthermore, the connection between the first fixing plate and the second fixing plate is an elastic connection part with a thickness of ≤1.5 mm.

[0007] Furthermore, the elastic connecting part is a rubber plate, a plastic plate, or a non-ferrous metal plate.

[0008] Furthermore, the springs are connected by L-shaped spring supports to increase the distance between the end of the spring support 7 that fixes the spring and the top surface of the base.

[0009] Furthermore, the second fixing plate is also provided with a limiting plate on the side of the spring bracket. The limiting plate has a limiting flange on its side, and the base has a limiting block at its end. The limiting block has several limiting grooves on its side. The limiting flange and the limiting grooves cooperate with each other.

[0010] Furthermore, both the limiting plate and the limiting block are elastic elements.

[0011] The positive effects of this utility model are as follows: By setting a notch structure between the first and second fixed plates to reduce the thickness at the connection, the bending action of the first and second fixed plates is facilitated. A return spring is used to elastically connect the second fixed plate to the base. When the robot arm collides with the steel ring or yarn tube during the jointing process, the first fixed plate remains stationary due to its rigid connection to the base, while the second fixed plate continues to move under the robot arm's influence. The flexible deformation of the notch and the elastic stretching of the return spring absorb the collision energy, avoiding rigid impact and resetting the position. This effectively protects the robot arm, yarn tube, and steel ring from damage. Simultaneously, the return spring enables automatic resetting, improving the reliability and continuity of the jointing operation, reducing equipment maintenance requirements, extending the device's service life, and enhancing the system's adaptability and stability under frequent docking conditions. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural schematic diagram of the threading robot used in the flexible connection self-resetting device for yarn joints of a spinning machine according to this utility model. Figure 2 yes Figure 1 The figure shown is a three-dimensional structural schematic diagram of a flexible connection self-resetting device for yarn joints of a spinning machine according to this utility model. Figure 3 yes Figure 2 The image shows a front view of a flexible self-resetting device for yarn joints on a spinning machine according to this utility model. Legend: 1—Base, 2—Limiting block, 3—Limiting groove, 4—Limiting plate, 401—Limiting flange, 5—Yarn inlet, 6—Reset spring, 7—Spring bracket, 8—Connector, 801—Connector fixing bolt, 9—First fixing plate, 10—Yarn, 11—Notch, 12—Second fixing plate, 13—Spring fixing bolt. Detailed Implementation

[0013] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments: In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 utility model.

[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0015] like Figures 1 to 3 The diagram shows the structure of a flexible self-resetting device for yarn splices on a spinning machine according to an embodiment of this utility model. It includes a first fixing plate 9 and a second fixing plate 12. A through notch 11 is provided at the connection between the first fixing plate 9 and the second fixing plate 12 to reduce the thickness at the connection. The end of the first fixing plate 9 away from the notch is bolted to the base 1 of the robotic arm. A spring bracket 7 is provided at the end of the second fixing plate 12 away from the notch 11. The spring bracket 7 is connected to the spring fixing bolt 13 at the end of the base 1 via a reset spring 6. The top of the second fixed plate 12 is fixed with a connector 8, which is fixedly connected to the end of the robotic arm. When the robotic arm drives the robotic hand to connect wires, and the robotic hand touches the steel ring or yarn tube, the end of the first fixed plate 9 fixed to the base is resisted and remains stationary synchronously with the robotic hand. The other end of the first fixed plate 9 is connected to the second fixed plate 12 through a connection with a notch 11. Since the second fixed plate 12 and the base 1 are movably connected together by a return spring 6, the second fixed plate 12 can continue to move with the robotic arm at this time, realizing the purpose of flexible connection and self-reset.

[0016] In this embodiment of the invention, a notch 11 is provided between the first fixed plate 9 and the second fixed plate 12 to reduce the thickness at the connection point, facilitating bending of the first fixed plate 9 and the second fixed plate 12. A return spring 6 is used to elastically connect the second fixed plate 12 to the base 1. When the robotic arm contacts the steel ring or yarn tube during the jointing process, the first fixed plate 9 remains stationary due to its rigid connection to the base 1, while the second fixed plate 12 continues to move under the robotic arm's influence. The flexible deformation of the notch 11 and the elastic stretching of the return spring 6 absorb the collision energy, preventing rigid impact and resetting the connection. This effectively protects the robotic arm, yarn tube, and steel ring from damage. Simultaneously, the return spring enables automatic resetting, improving the reliability and continuity of the jointing operation, reducing equipment maintenance requirements, extending the device's service life, and enhancing the system's adaptability and stability under frequent docking conditions.

[0017] Specifically, a flexible self-resetting device for yarn splices on a spinning machine includes a first fixing plate 9 and a second fixing plate 12. A through notch 11 is provided at the connection point of the first fixing plate 9 and the second fixing plate 12 to reduce the thickness of the connection point and facilitate flexible deformation of the first fixing plate 9 and the second fixing plate 12 at the notch 11. The end of the first fixing plate 9 away from the notch is bolted to the base 1 of a robotic arm. A spring bracket 7 is provided at the end of the second fixing plate 12 away from the notch 11. The spring bracket 7 is connected to a spring fixing bolt 13 at the end of the base 1 via a reset spring 6. The springs are arranged in an L-shape, which increases the distance between the end of the spring bracket 7 fixing the spring and the top surface of the base, facilitating an increase in the length of the reset spring 6 and better utilizing the elastic tension of the reset spring to absorb impacts. The impact energy is used to avoid rigid impact and reset; the top of the second fixed plate 12 is fixed with a connector 8 by a connector fixing bolt 801, and the connector 8 is bolted to the end of the robotic arm through the threaded hole on its top; when the robotic arm drives the robotic hand to connect the wires, when the end of the robotic hand with yarn 10 touches the steel ring or yarn tube, the end of the first fixed plate 9 fixed to the base is resisted and remains stationary synchronously with the robotic hand. The other end of the first fixed plate 9 is connected to the second fixed plate 12 through the connection with notch 11. Since the second fixed plate 12 and the base 1 are movably connected together by the reset spring 6, the second fixed plate 12 can continue to move with the robotic arm at this time. The supply end of yarn 10, that is, the yarn inlet 5, will separate from the second fixed plate and be elastically connected by the reset spring 6. This achieves the purpose of flexible connection and self-reset.

[0018] Preferably, the second fixing plate 12 is provided with a limiting plate 4 on the side of the spring bracket 7. The limiting plate 4 has a limiting flange 401 on its side, and the base 1 has a limiting block 2 at its end. The limiting block 2 has several limiting grooves 3 on its side. The limiting plate 4 and the limiting block 2 are both elastic elements, such as rubber, nylon, or polyurethane. The limiting flange 401 cooperates with the limiting grooves 3. When the robot arm comes into contact with the steel ring or yarn tube during the jointing process, the first fixing plate 9 remains stationary due to its rigid connection with the base 1, while the second fixing plate 12 can continue to move under the drive of the robot arm. The collision energy is absorbed by the flexible deformation of the notch 11 and the elastic stretching of the return spring 6 to avoid rigid impact and reset. During this process, the limiting flange 401 slides in different limiting grooves 3 to further absorb collision energy and avoid rigid impact.

[0019] The foregoing has broadly outlined some aspects and features of the various embodiments and should be interpreted as merely illustrative of potential applications. Other beneficial results can be obtained by applying the disclosed information in different ways or by combining aspects of the disclosed embodiments. Further aspects and a more complete understanding can be obtained based on the detailed description of exemplary embodiments with reference to the accompanying drawings, within the scope defined by the claims.

[0020] The above embodiments provide a detailed description of the present invention. Of course, the above description is not intended to limit the present invention, nor is the present invention limited to the examples described above. Any changes, modifications, additions, reductions, or substitutions made by those skilled in the art within the scope of the present invention are also within the protection scope of the present invention.

Claims

1. A flexible connection self-resetting device for a spinning frame yarn joint, characterized in that, The flexible connection self-resetting device includes a first fixing plate and a second fixing plate. A through notch is provided at the connection between the first fixing plate and the second fixing plate to reduce the thickness at the connection. The end of the first fixing plate away from the notch is fixedly connected to the base of the robot arm by bolts. The end of the second fixing plate away from the notch is provided with a spring bracket, which is connected to the spring fixing bolt at the end of the base by a reset spring. A joint is fixed to the top of the second fixing plate, and the joint is fixedly connected to the end of the robot arm.

2. A flexible connection self-resetting device for a yarn joint of a spinning frame according to claim 1, characterized in that The connection between the first fixing plate and the second fixing plate is an elastic connection part with a thickness of ≤1.5 mm.

3. A flexible connection self-resetting device for a yarn joint of a spinning frame according to claim 2, characterized in that The elastic connecting part is a rubber plate, a plastic plate, or a non-ferrous metal plate.

4. A flexible connection self-resetting device for a yarn joint of a spinning frame according to claim 3, characterized in that, The springs are connected by an L-shaped spring bracket to increase the distance between the end of the spring bracket 7 that fixes the spring and the top surface of the base.

5. A flexible connection self-resetting device for yarn splices on a spinning machine according to any one of claims 1 to 4, characterized in that, The second fixing plate is located on the side of the spring bracket and is also provided with a limiting plate. The side of the limiting plate is provided with a limiting flange, and the end of the base is provided with a limiting block. The side of the limiting block is provided with several limiting grooves; the limiting flange and the limiting grooves cooperate.

6. A flexible connection self-resetting device for a yarn joint of a spinning frame according to claim 5, characterized in that Both the limiting plate and the limiting block are elastic components.

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