A yarn breakage self-stop insert device for a ring spinning machine

Abstract

The application discloses a yarn breakage self-stopping and inserting piece device of a ring spinning frame, which comprises two chisels connected to a push plate driven by a driver, and the chisels are driven to rotate on a middle roller and a back roller by the push plate, wherein the chisel sleeved on the middle roller comprises an arc-shaped part and a bottom support plate located at the bottom of the arc-shaped part, the arc length of the arc-shaped part is less than half of the circumference length of the middle roller, a top rod movably contacts the side of the arc-shaped part away from the middle roller, and the top rod is hinged to a support fixed on the frame of the spinning frame; when the driver drives the chisel to rotate on the middle roller through the push plate, the top rod limits the chisel to the outer circumferential surface of the middle roller. The application has the beneficial effect that the chisel with the arc length of the arc-shaped part less than half of the circumference length of the middle roller solves the problem that the rotation speed of the belt for conveying yarn of the middle roller is reduced due to the contact between the belt and the chisel, avoids the uneven yarn spinning process caused by the uneven speed of the belt, and further guarantees the appearance quality of the yarn.

Description

Technical Field

[0001] This invention belongs to the technical field of yarn breakage treatment devices for ring spinning machines, and particularly relates to a self-stopping insert device for yarn breakage in ring spinning machines. Background Technology

[0002] The inventors disclosed a dual-control ring spinning machine yarn breakage self-stop system in Chinese invention patent CN202210464436.0, including a self-stop device and a control device. The control device controls the self-stop device to isolate the transmission contact between the yarn and the rollers. The rollers include a front roller, a middle roller, and a rear roller. The self-stop device includes a push plate that slides within a fixed slide rail. A support plate is slidably connected to the push plate. An arc-shaped wedge is hinged to the top of the support plate and fitted onto the roller. The push plate, support plate, and wedge form a double-rocker slider mechanism or a triple-rocker slider mechanism with the roller as the fulcrum. The beneficial effect of this invention is that by sliding the support plate and hinged the arc-shaped wedge to the support plate, the rotation angle of the arc-shaped wedge on the roller is increased, realizing the simultaneous stopping of the middle roller and the rear roller, or the simultaneous stopping of the front roller, the middle roller, and the rear roller, avoiding the yarn between the rollers being stretched and thinned after yarn breakage.

[0003] During the research and implementation of this patent, the inventors discovered that while the technology solved the problem of yarn being stretched and thinned between rollers after yarn breakage, it suffered from unstable belt speeds, leading to uneven yarn weaving. Simultaneously, the wear on the conveyor belt increased, even causing belt debris to enter the yarn, altering its texture and color and affecting its appearance. Further research revealed that because the wedge needed to be wrapped around the roller, it was designed with an arc length greater than half the outer circumference of the roller. However, this structure made it easy for the wedge to fail to isolate the transmission between the roller and the belt. When the wedge comes into contact with the belt, the friction on the belt increases, leading to a decrease in speed. However, this friction is not constant; that is, the contact between the wedge and the belt is intermittent. This is mainly because the wedge is mounted on a push plate. However, fixing the wedge to the push plate does not allow it to rotate around the roller. As a result, the belt speed is unstable due to the discontinuous friction, which can cause uneven yarn during the yarn spinning process. At the same time, the wear of the belt conveyor on the roller is accelerated, and even belt wear debris can enter the yarn, causing local changes in the texture and color of the yarn and affecting its appearance quality. Summary of the Invention

[0004] The objective of this invention is to solve the technical problem that occurs during the implementation of Chinese invention patent CN202210464436.0, where the belt of the middle roller conveying the yarn comes into contact with the wedge, causing the belt rotation speed to decrease and the uneven belt speed to lead to uneven yarn during the yarn spinning process, thus affecting the appearance quality of the yarn.

[0005] To achieve the above objectives, the present invention provides a yarn breakage self-stop insert device for ring spinning machines.

[0006] The specific technical solution adopted in this invention is as follows:

[0007] A yarn breakage self-stop insert device for a ring spinning machine includes two wedges connected to a push plate driven by a driver. The push plate drives the wedges to rotate on the middle roller and the rear roller. The wedge fitted on the middle roller includes an arc-shaped part and a bottom support plate located at the bottom of the arc-shaped part. The arc length of the arc-shaped part is less than half the circumference of the middle roller. A push rod is movably contacted on the side of the arc-shaped part away from the middle roller. The push rod is hinged to a bracket fixed on the frame of the spinning machine. When the driver drives the wedge to rotate on the middle roller through the push plate, the push rod confines the wedge to the outer circumferential surface of the middle roller.

[0008] Furthermore, the wedges are a middle wedge and a rear wedge, both of which are inserted into the through holes of the push plate 12 through their respective bottom support plates. The push plate is connected to the driver.

[0009] Furthermore, the push rod includes a first push rod and a connecting rod that are in movable contact with the wedge, and the first push rod and the connecting rod are hinged together by a first hinge shaft.

[0010] Furthermore, the push rod includes a first push rod, a second push rod, and a connecting rod that are in movable contact with the wedge, and the first push rod and the connecting rod are hinged together by a first hinge shaft.

[0011] Furthermore, the hinge of the first hinge shaft adopts an overfit or increases the roughness of the contact surface to increase friction.

[0012] Furthermore, the bracket is fixed to the frame of the spinning machine by a fixing seat. The fixing seat includes a left fixing frame and a right fixing frame, which are symmetrically provided with fixing seats. The fixing seat has a slot, into which a plug is inserted. The top of the plug is fixed to the bottom of the fixing plate. The top of the fixing plate has two parallel first support plates and a second support plate. A horizontal plate is fixed to the top of the first support plate and the second support plate. A fixing shaft is fixed to the inner side of the two horizontal plates. The fixing shaft is arranged through the space between the middle roller and the rear roller.

[0013] Furthermore, the top of the second support plate is provided with a slot, and the top of the first support plate is provided with a threaded hole. One end of the horizontal plate is inserted into the slot, and the other end is fixed in the threaded hole by a screw.

[0014] The positive effects of this invention are: by using a wedge with an arc length less than half the circumference of the middle roller, the problem of accelerated belt wear on the middle roller is solved, and debris from belt wear is prevented from entering the yarn, thus improving the local texture and color changes of the yarn and further ensuring the appearance quality of the yarn. Attached Figure Description

[0015] Figure 1 This is a schematic diagram illustrating an application scenario of the self-stop insert device for yarn breakage on a ring spinning machine according to the present invention.

[0016] Figure 2 yes Figure 1 Enlarged front view of point A in the middle;

[0017] Figure 3 yes Figure 1 The left view;

[0018] Figure 4 yes Figure 3 Sectional view at point BB;

[0019] Figure 5 This is a schematic diagram of the structure of a yarn breakage self-stop insert device for a ring spinning machine according to the present invention;

[0020] Figure 6 This is a schematic diagram of the second structure of the self-stop insert device for yarn breakage on a ring spinning machine according to the present invention;

[0021] Figure 7 This is a schematic diagram of the structure of the fixing frame in the yarn breakage self-stop insert device of the ring spinning machine according to the present invention;

[0022] Figure 8 yes Figure 6 Enlarged view at point M;

[0023] Legend: 1—Right fixed frame, 101—Left fixed frame, 2—Rear roller, 3—Driver, 4—Crank, 5—First roller, 6—Top rod, 601—First top rod, 6011—Second top rod, 602—First hinge shaft, 603—Connecting rod, 604—Fixed shaft, 7—Second roller, 8—Third roller, 9—Front roller, 10—Middle roller, 11—Middle wedge, 1101—Bottom support plate, 1102—Edge, 1103—Arc-shaped part, 12—Push plate, 13—Fixed seat, 14—Bracket, 1401—Fixed plate, 1402—First support plate, 1403—Horizontal plate, 1404—Second support plate, 1405—Plug, 1406—Threaded hole, 1407—Slot, 15—Rear wedge. Detailed Implementation

[0024] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments:

[0025] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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. Therefore, they should not be construed as limitations on this invention.

[0026] To make the objectives, technical solutions, and advantages of this invention clearer, the invention 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 and not intended to limit the invention.

[0027] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0028] like Figure 1 The diagram shows an application scenario of the self-stop insert device for yarn breakage in a ring spinning machine according to the present invention. The self-stop insert device includes two wedges connected to a push plate driven by a driver. The push plate drives the wedges to rotate on the middle roller and the rear roller. The wedge fitted on the middle roller includes an arc-shaped part and a bottom support plate located at the bottom of the arc-shaped part. The arc length of the arc-shaped part is less than half the circumference of the middle roller. A top rod is movably contacted on the side of the arc-shaped part away from the middle roller. The top rod is hinged to a bracket fixed on the frame of the spinning machine. When the driver drives the wedge to rotate on the middle roller through the push plate, the top rod confines the wedge to the outer circumferential surface of the middle roller.

[0029] In this invention, the problem of accelerated belt wear on the middle roller is solved by using a wedge with an arc length less than half the circumference of the middle roller. This prevents debris from belt wear from entering the yarn, improves the local texture and color of the yarn, and further ensures the appearance quality of the yarn.

[0030] Specifically:

[0031] Example 1: As Figures 1 to 5As shown, a yarn breakage self-stop insert device for a ring spinning machine includes two wedges: a middle wedge 11 and a rear wedge 15. The middle wedge 11 is fitted onto the outer circumference of the middle roller 10, and the rear wedge is fitted onto the outer circumference of the rear roller. Both the middle wedge 11 and the rear wedge 15 are inserted into the through holes of a push plate 12 via their respective bottom support plates 1101. The push plate is connected to a driver 3. The connection and operational structure relationship between the driver 3 and the push plate 12 are described in the inventor's description. The invention patent CN202210464436.0 and utility model patent CN202221421967.3 are described in detail later and will not be repeated here. The wedge 11 includes an arc-shaped portion 1103 and a bottom support plate 1101. The arc length of the arc portion 1103 is less than half the circumference of the outer edge of the middle roller 10. Thus, when the arc portion 1103 rotates around the outer circumference of the middle roller 10, it only reaches the second roller when inserted into the middle roller 10. The wedge 11 only contacts the belt when it is between rollers 7; otherwise, it does not contact the belt, thus avoiding friction between the wedge and the belt. This solves the problem of accelerated belt wear on the middle roller conveyor and prevents belt wear debris from entering the yarn, improving the local texture and color changes of the yarn and further ensuring the appearance quality of the yarn. At the same time, the side of the middle wedge 11 away from the middle roller 10 is in contact with a push rod 6. The push rod 6 includes a first push rod 601 and a connecting rod 603 that are in contact with the middle wedge 11. The first push rod 601 and the connecting rod 603 are hinged together by a first hinge shaft 602. The hinge of the first hinge shaft 602 adopts a transition fit or increases the roughness of the contact surface to increase friction, so that it can rotate during manual adjustment, while the middle wedge 11 can remain stationary when rotating, ensuring that the middle wedge 11 does not fall off the outer circumference of the middle roller 10.

[0032] For fixing the top rod, a left fixing bracket 101 and a right fixing bracket 1 are provided on the frame of the spinning machine. The left fixing bracket 101 and the right fixing bracket 1 are symmetrically provided with fixing seats 13. Each fixing seat 13 has a slot into which a plug 1405 is inserted. The top of the plug 1405 is fixed to the bottom of the fixing plate 1401. The top of the fixing plate 1401 has two parallel first support plates 1402 and second support plates 1404. A horizontal [unclear - possibly a type of support] is fixed to the top of the first support plates 1402 and the second support plates 1404. Plate 1403, with a fixed shaft 604 fixed on the inner side of the two horizontal plates 1403. The fixed shaft 604 is disposed below the middle roller 10 and the rear roller 2, and is located below the yarn. The connecting rod 603 is hinged to the outer circumference of the fixed shaft 604, and its contact surface adopts an overfit or increases the roughness of the contact surface to increase the friction, so that it can rotate when manually adjusted, while the middle wedge 11 can remain stationary when rotating, ensuring that the middle wedge 11 does not fall off the outer circumference of the middle roller 10.

[0033] Preferably, the top of the second support plate 1404 is provided with a slot 1407, the top of the first support plate 1402 is provided with a threaded hole 1406, one end of the horizontal plate 1403 is inserted into the slot 1407, and the other end is fixed into the threaded hole 1406 by a screw.

[0034] This method allows for overall control and disassembly of the push rod position at each workstation, as well as adjustment of the push rod position at a single workstation, facilitating maintenance.

[0035] In practical use, such as Figure 1 As shown, the rocker arm 4 presses the first roller 5, the second roller 7, and the third roller 8 onto the top surfaces of the rear roller 2, the middle roller 10, and the front roller 9, respectively. The yarn passes through the contact surface between the first roller 5 and the rear roller 2, then through the contact surface between the second roller 7 and the middle roller 10, and finally through the contact surface between the third roller 8 and the front roller 9. A belt is also provided between the middle roller 10 and the second roller 7, and the belt wraps around the outer circumference of the middle roller 10. The wedge 11 is used to insert between the belt and the middle roller 10 to isolate the contact between the middle roller 10 and the belt, thereby blocking the movement of the belt and stopping the yarn conveying at the middle roller 10. Simultaneously with the rear wedge 15, under the push of the push plate 12 driven by the driver 3, the conveying power of the yarn between the middle roller 10 and the rear roller 2 can be isolated at the same time to prevent the yarn between the middle roller 10 and the rear roller 2 from stretching.

[0036] Example 2:

[0037] Based on Example 1, such as Figure 6 and Figure 8 As shown, in Embodiment 1, only the first push rod 601 is provided in the push rod, which pushes against the outer side of the edge 1102 of the arc-shaped portion 1103. This results in uneven force on the arc-shaped portion 1103, which easily causes one side to lift up. In this embodiment, the first push rod 601 and the second push rod 6011 are used simultaneously to push against the outer side of the edge 1102 of the arc-shaped portion 1103, and are distributed on both sides of the edge 1102 of the arc-shaped portion 1103, so that the arc-shaped portion 1103... 03. The force is uniform, and it can slide stably on the outer circumference of the middle roller 10. The first push rod 601, the second push rod 6011 and the connecting rod 603 are hinged together by the first hinge shaft 602. The hinge of the first hinge shaft 602 adopts a transition fit or increases the roughness of the contact surface to increase the friction force, so that it can rotate when manually adjusted, while the middle wedge 11 can remain stationary when rotating, ensuring that the middle wedge 11 does not fall off the outer circumference of the middle roller 10.

[0038] Preferably, the contact surfaces of the first push rod 601 and the second push rod 6011 with the arc-shaped portion 1103 are provided with cylindrical rollers to reduce friction with the arc-shaped portion 1103.

[0039] 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.

[0040] 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 yarn breakage self-stop insert device for a ring spinning machine, comprising two wedges connected to a push plate driven by a driver, the push plate driving the wedges to rotate on the middle roller and the rear roller, wherein the wedge fitted on the middle roller includes an arc-shaped portion and a bottom support plate located at the bottom of the arc-shaped portion, characterized in that, The arc length of the arc-shaped part is less than half the circumference of the middle roller. The side of the arc-shaped part away from the middle roller is in contact with a push rod. The push rod is hinged to a bracket fixed on the spinning machine frame. When the driver drives the wedge to rotate on the middle roller through the push plate, the push rod limits the wedge to the outer circumferential surface of the middle roller. When the arc-shaped part rotates on the outer circumference of the middle roller, it will only contact the belt when it is inserted between the middle roller and the second roller. In other states, it will not contact the belt, thus avoiding friction between the wedge and the belt. The two wedges are a middle wedge and a rear wedge. The middle wedge is fitted on the outer circumference of the middle roller, and the rear wedge is fitted on the outer circumference of the rear roller. Both the middle wedge and the rear wedge are inserted into the through hole of the push plate through their respective bottom support plates. The push rod includes a first push rod, a second push rod, and a connecting rod that are in active contact with the center wedge. The first push rod and the connecting rod are hinged together by a first hinge shaft. The bracket is provided with a fixed shaft, and the connecting rod is hinged to the outer circumference of the fixed shaft. The hinge of the first hinge shaft adopts an transition fit or increases the roughness of the contact surface to increase friction, so that it can rotate during manual adjustment, while the center wedge can remain stationary when rotating, ensuring that the center wedge does not fall off the outer circumference of the center roller.

2. The self-stop insert device for yarn breakage on a ring spinning machine according to claim 1, characterized in that, The bracket is fixed to the frame of the spinning machine by a fixing seat. The fixing seat includes a left fixing frame and a right fixing frame. The left fixing frame and the right fixing frame are symmetrically provided with fixing seats. The fixing seat is provided with a slot, and a plug is inserted into the slot. The top of the plug is fixed to the bottom of the fixing plate. The top of the fixing plate is provided with two parallel first support plates and second support plates. A horizontal plate is fixed to the top of the first support plates and the second support plates. A fixing shaft is fixed to the inner side of the two horizontal plates. The fixing shaft is arranged through the space below between the middle roller and the rear roller.

3. The self-stopping insert device for yarn breakage on a ring spinning machine according to claim 2, characterized in that, The top of the second support plate is provided with a slot, and the top of the first support plate is provided with a threaded hole. One end of the horizontal plate is inserted into the slot, and the other end is fixed in the threaded hole by a screw.

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