A device for increasing the spooling rate of a spinning frame

Abstract

A device for improving the splicing rate of a spinning frame, comprising a base, a head swinging arm device arranged at the lower end of the base, and a suction pipe, further comprising: a first driving unit arranged on the base and used for driving the suction pipe to approach / leave the spindle; a second driving unit arranged on the side of the base close to the spinning frame; and a thread pressing unit connected with the second driving unit and used for pushing the tail thread between the head swinging arm device and the suction pipe downward under the driving of the second driving unit. The device has the advantages that the first driving unit, the second driving unit and the thread pressing unit are arranged in this way, the lifting movement of the suction pipe is realized, the tail thread is automatically adsorbed, and the tail thread is further drafted to the splicing area, so that the device has a high degree of automation; meanwhile, the second driving unit can drive the thread pressing unit to press the tail thread at the suction pipe, so that the tail thread is as close as possible to the cutter, and the success rate of cutting the excess thread is ensured.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of textile equipment, and particularly relates to a device for improving the splicing rate of a spinning frame. BACKGROUND

[0002] The mainstream of the yarn splicing technology after the yarn breakage of the existing spinning frame is manual re-splicing of the yarn, that is, the worker takes out the yarn spindle with broken yarn, manually finds the yarn end, and then uses the traditional pinching method to re-splice the broken yarn to continue spinning. This technology requires high proficiency of the worker, is complicated to operate, is easy to contaminate the yarn, and has low automation level. Manual finding of the yarn end and then splicing the yarn have high error rate, poor splicing quality, and low efficiency, resulting in time waste.

[0003] The document with the authorized announcement number CN110387616B discloses a splicing arm assembly for an automatic splicing apparatus, wherein the splicing arm assembly includes at least one arm configured to shift between a first position and a second position. The at least one arm has a plurality of guide fingers and at least one roller on the plurality of guide fingers. A movable plate having a guide slot is connected to a support member extending from the at least one arm, and the guide slot is configured to shift linearly to align with the tail yarn for splicing.

[0004] The working principle of the above device is as follows: after the tail yarn is fixed by the suction pipe, the splicing arm moves from the first position to the second position, the roller on the splicing arm transports the tail yarn to the transport roller of the spinning frame, the tail yarn is spliced with the broken yarn due to the frictional contact between the roller and the transport roller, and the cutter on the splicing arm cuts the excess yarn of the tail yarn.

[0005] The device still has the following defects: first, the broken end of the tail yarn can be at the top end or the tail end of the spindle, and the suction pipe of the device still needs to be manually moved to adsorb the tail yarn or to pull the tail yarn to the suction pipe, so the degree of automation is low; second, the suction pipe is located at the upper end of the trajectory of the entire roller moving from the first position to the second position, and the tail yarn between the suction pipe and the roller is higher than the cutter, thereby causing cutting failure. SUMMARY

[0006] In view of the above problems, the purpose of the present application is to provide a device for improving the splicing rate of a spinning frame. By means of the first driving unit, the second driving unit, and the yarn pressing unit, the lifting movement of the suction pipe is realized, so as to automatically adsorb the tail yarn and further stretch the tail yarn to the splicing area, thereby having the advantage of high degree of automation. Meanwhile, the second driving unit can drive the yarn pressing unit to press the tail yarn at the suction pipe, so that the tail yarn is as close as possible to the cutter, thereby ensuring the success rate of cutting the excess yarn.

[0007] In order to achieve the above purpose, the technical scheme of the present application is as follows:

[0008] A device for improving the splicing rate of a spinning frame, comprising a base, a swing arm device arranged at the lower end of the base, and a suction pipe, further comprising:

[0009] a first driving unit arranged on the base and used for driving the suction pipe to approach / leave the spindle;

[0010] a second driving unit arranged on the base close to the spinning frame;

[0011] a pressing unit connected with the second driving unit and driven by the second driving unit to push the tail yarn between the swing arm device and the suction pipe downward.

[0012] As a further preferred embodiment of the present application, the first driving unit comprises a driving motor arranged on the base, a support arranged at the lower end of the base and extending to the spindle, a moving block slidingly connected on the support and connected with the output shaft of the driving motor, and a pipe hole arranged on the moving block and used for the suction pipe to pass through.

[0013] As a further preferred embodiment of the present application, the pressing unit comprises a mounting column arranged at the lower end of the base and parallel with the support, a channel arranged in the mounting column, a moving plate slidingly connected in the channel, and a pressing rod arranged at the lower end of the moving plate and extending to the outside of the mounting column.

[0014] As a further preferred embodiment of the present application, the second driving unit comprises a mounting cavity arranged in the mounting column and communicated with the channel, and a driving member arranged in the mounting cavity and connected with the moving plate.

[0015] As a further preferred embodiment of the present application, the second driving unit further comprises a mounting hole arranged on the side end of the support close to the mounting column, a fixed shaft rotatably arranged in the mounting hole, a thread roller arranged on the fixed shaft, a gear arranged on the fixed shaft, a rack arranged on the side end of the moving block and engaged with the gear, and a connecting rope wound around the thread roller and connected with the driving member. The mounting hole 203 is arranged on the side of the support 102 close to the base 10.

[0016] As a further preferred embodiment of the present application, the driving member comprises a thread hole arranged on the side wall of the mounting cavity, and a fixed pulley rotatably arranged in the mounting cavity; the connecting rope is wound around the fixed pulley and the end thereof is connected with the moving plate.

[0017] As a further preferred embodiment of the present application, the second driving unit further comprises a torsion spring arranged between the fixed shaft and the thread roller.

[0018] As a further preferred embodiment of the present application, the line pressing unit further comprises a limiting plate arranged at the end of the channel, and a first opening arranged on the limiting plate and allowing the pressing rod to pass through.

[0019] As a further preferred embodiment of the present application, the line pressing unit further comprises a vertical rod arranged on the upper surface of the limiting plate, and a second opening arranged on the moving plate and allowing the vertical rod to pass through.

[0020] As a further preferred embodiment of the present application, the pressing rod comprises a vertical rod connected with the moving plate, and a horizontal rod arranged at the end of the vertical rod away from the moving plate and perpendicular to the vertical rod.

[0021] As a further preferred embodiment of the present application, the suction pipe comprises a fan arranged at the upper end of the base, an output pipe connected with the output port of the fan, a bellows pipe connected with the output pipe and passing through the pipe hole, a first extension horizontal pipe connected with the bellows pipe and perpendicular to the bellows pipe, and a second extension horizontal pipe connected with the first extension horizontal pipe and having an outlet facing the spindle.

[0022] As a further preferred embodiment of the present application, the first driving unit 1 further comprises a strip-shaped hole arranged at the side of the bracket away from the spinning frame a, and a limiting sliding block 106 arranged at the side end of the moving block and inserted into the strip-shaped hole.

[0023] As a further preferred embodiment of the present application, the first driving unit 1 further comprises an opening hole arranged on the limiting sliding block, and a limiting rod arranged in the strip-shaped hole and passing through the opening hole. BRIEF DESCRIPTION OF DRAWINGS

[0024] FIG. 1 is a perspective view of the structure of the present application in the front view angle. Figure 1 FIG. 2 is a perspective view of the structure of the present application in the front view angle when the device is connected.

[0025] FIG. 3 is a perspective view of the structure of the present application in the front view angle when the device is connected. Figure 2 FIG. 4 is a schematic view of part of the structure of the present application.

[0026] Figure 3 FIG. 5 is a schematic view of part of the structure of the present application.

[0027] FIG. 6 is a schematic view of part of the structure of the second driving unit and the line pressing unit of the present application. Figure 4 FIG. 7 is a schematic view of part of the structure of the present application in the bottom view angle.

[0028] Figure 5 FIG. 8 is a schematic view of part of the structure of the present application in the bottom view angle.

[0029] BRIEF DESCRIPTION OF DRAWINGS: spinning frame a, spindle b, base 10, head swinging arm device 11, suction pipe 12, first driving unit 1, second driving unit 2, line pressing unit 3;

[0030] bellows pipe 121, first extension horizontal pipe 122, second extension horizontal pipe 123;​​

[0031] Driving motor 101, support 102, moving block 103, pipe hole 104, strip hole 105, limiting sliding block 106, opening hole 107, limiting rod 108;

[0032] Mounting cavity 201, driving piece 202, mounting port 203, fixed shaft 204, wire roller 205, gear 206, rack 207, connecting rope 208, torsional spring 209;

[0033] Threading hole 202a, fixed pulley 202b;

[0034] Mounting column 301, channel 302, moving plate 303, pressing rod 304, limiting plate 305, first opening 306, vertical rod 307, second opening 308;

[0035] Vertical rod 304a, horizontal rod 304b. DETAILED DESCRIPTION

[0036] In the description of the present application, it should be understood that the terms "upper", "lower", "inner", "outer", "left", "right", and the like indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly understood by those skilled in the art, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0037] In the description of the present application, it should be understood that the terms "set", "connected" and the like should be broadly understood, unless otherwise explicitly specified and limited, for example, "connected" can be fixedly connected, or can be detachably connected, or integrally connected, can be mechanically connected, or can be electrically connected, can be directly connected, or indirectly connected through an intermediate medium, or can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0038] Embodiments of the present disclosure generally relate to a spinning machine. More particularly, the present disclosure relates to a device for improving the splicing rate of a spinning frame. The device comprises a base, a head swinging arm device, a suction pipe. Wherein, the suction pipe is used to attract tail yarn from the spindles of the spinning machine to splice. In addition, one suction pipe is also provided at the side end of the upper end of the spinning frame, and the broken yarn extending from the delivery drafting roller on the spinning frame is sucked into the suction pipe on the side end of the spinning frame.

[0039] The rocker arm device in the device comprises at least one roller which helps the splicing operation and pushes the spliced yarn downstream after splicing; at least one guide finger which is positioned by the delivery drafting roller on the spinning frame; a moving plate for mounting the roller and the guide finger; at least one cutter mounted on the moving plate for cutting the excess yarn after splicing; and an arm for mounting the moving plate and pivoting the moving plate from a first position to a second position.

[0040] It can be understood that the components of the rocker arm device are known in the art, and reference can be made to the splicing arm assembly disclosed in the document with the publication number CN110387616B.

[0041] Figure 1 is a perspective view of the device according to the present disclosure. Figure 1 Figure 2 is a perspective view of the device according to the present disclosure.

[0042] A first driving unit 1 is arranged on the base 10 and is used to drive the suction pipe 12 to approach / leave the spindle b;

[0043] A second driving unit 2 is arranged on the base 10 close to the spinning frame a;

[0044] A presser unit 3 is connected with the second driving unit 2 and pushes the end yarn between the rocker arm device 11 and the suction pipe 12 downward under the driving of the second driving unit 2.

[0045] In order to splice the broken yarn and the end yarn, the device can be used in the spinning area as best shown in Figure 2 Figure 1. Wherein the first driving unit 1 drives the suction pipe 12 to approach the spindle b, the suction pipe 12 generates negative pressure to generate suction force, and the end yarn is sucked into the suction pipe 12, and the second driving unit 1 drives the suction pipe 12 to rise to the vicinity of the output port of the delivery drafting roller on the spinning frame. The presser unit 3 is driven by the second driving unit 2 to descend until below the suction pipe 12 and press the end yarn for a distance. The rocker arm device 11 is pivoted from the first position to the second position, and the roller at the front end of the rocker arm device is in contact with the delivery drafting roller at the second position. The end yarn is clamped at the clamping point (the position where the delivery drafting roller is in contact with the roller), the roller makes the end yarn advance towards the delivery drafting roller, at this time, the broken yarn and the end yarn from the delivery drafting roller are hooked or contacted with each other to perform the automatic splicing action, and the roller rotates with the delivery drafting roller to make the yarn after splicing advance downstream.

[0046] Embodiment 1

[0047] In this embodiment, the device is used in the spinning area as best shown in Figure 3As shown, the first driving unit 1 includes a driving motor 101 arranged on the base 10, a bracket 102 arranged at the lower end of the base 10 and extending to the spindle b, a moving block 103 slidingly connected on the bracket 102 and connected with the output shaft of the driving motor 101, and a pipe hole 104 arranged on the moving block 103 and used for passing the suction pipe 12.

[0048] The suction pipe 12 includes a fan arranged at the upper end of the base 11, an output pipe connected with the output port of the fan, a bellows pipe 121 connected with the output pipe and passing through the pipe hole 104, a first extension cross pipe 122 connected with the bellows pipe 121 and perpendicular to the bellows pipe 121, and a second extension cross pipe 123 connected with the first extension cross pipe 122 and having an outlet facing the spindle b.

[0049] It is worth mentioning that, as shown in the attached drawings, Figure 3 As shown, the bracket 102 is arranged at the rear end of the lower surface of the base 10. The bellows pipe 121 has the function of expansion and contraction, and can expand and contract with the lifting of the moving block 103. The first extension cross pipe 122 extends to the front end of the base, and the second extension cross pipe 123 further extends to close to the spinning frame a. The rocker arm device 11 is arranged at the front end of the base 10 away from the spinning frame a, so as to ensure that it is not blocked by the bracket 102 when pivoted from the first position to the second position. The roller on the rocker arm device 11 is between the pipe outlet of the suction pipe 12 and the output port of the delivery drafting roller of the spinning frame a in the second position, so as to lift the tail yarn to the clamping point to complete the automatic joint.

[0050] The line pressing unit 3 includes a mounting column 301 arranged at the lower end of the base 10 and parallel to the bracket 102, a channel 302 arranged in the mounting column 301, a moving plate 303 slidingly connected in the channel 302, and a pressing rod 304 arranged at the lower end of the moving plate 303 and extending to the outside of the mounting column 301.

[0051] It is worth mentioning that the mounting column 301 is located between the bracket 102 and the spinning frame a, and the lowest height thereof is higher than the maximum height of the pipe outlet of the suction pipe 12, so as to avoid the interference of the mounting column 301 with the movement of the suction pipe 12. The lowest height of the pressing rod 304 needs to be ensured to be lower than the pipe outlet of the suction pipe 12 at the maximum height, so as to realize the effect of pressing the tail yarn, and to ensure that the excess tail yarn is as close as possible to the cutter on the rear end of the rocker arm device 11, so as to ensure the cutting success.

[0052] The second drive unit 2 includes a mounting cavity 201 disposed within the mounting post 301 and communicating with the channel 302, and a drive component 202 disposed within the mounting cavity 201 and connected to the movable plate 303. The drive component 202 enables the movable plate 303 to move up and down within the channel 302, and therefore will not be described further.

[0053] Compared with the prior art, this embodiment has the following advantages: First, the suction tube can automatically rise and fall to cover the top and bottom of the yarn spindle, thereby automatically adsorbing the tail yarn and further drawing the tail yarn to the splice area, which has the advantage of high automation. Second, the second drive unit can drive the pressing unit to press down the tail yarn at the suction tube, so that the tail yarn is as close as possible to the cutter, ensuring the success rate of cutting excess yarn.

[0054] Example 2

[0055] The difference between this embodiment and Embodiment 1 is that no additional drive motor is added, thus reducing economic costs. (See attached...) Figure 4 and attached Figure 5 As shown, the specific structure is as follows:

[0056] The second drive unit 2 further includes a mounting port 203 located on the side of the bracket 102 near the mounting post 301, a fixed shaft 204 rotatably mounted in the mounting port 203, a thread roller 205 mounted on the fixed shaft 204, a gear 206 mounted on the fixed shaft 204, a rack 207 located on the side of the moving block 103 and meshing with the gear 206, and a connecting rope 208 wound around the thread roller 205 and connected to the drive member 202. The mounting port 203 is located on the side of the bracket 102 near the base 10.

[0057] The driving component 202 includes a wire hole 202a provided on the side wall of the mounting cavity 201 and a fixed pulley 202b rotatably disposed in the mounting cavity 201; the connecting rope 208 is wound around the fixed pulley 202b and its end is connected to the moving plate 303.

[0058] As a further preferred embodiment, the second drive unit 2 further includes a torsion spring 209 disposed between the fixed shaft 204 and the roller 205.

[0059] As a further preferred embodiment, the pressure unit 3 further includes a limiting plate 305 disposed at the end of the channel 302, and a first opening 306 disposed on the limiting plate 305 for the pressure rod 304 to pass through.

[0060] As a further preferred embodiment of the present application, the pressing unit 3 further comprises a vertical rod 307 arranged on the upper surface of the limiting plate 305, and a second opening 308 arranged on the moving plate 303 and allowing the vertical rod 307 to pass through.

[0061] As a further preferred embodiment of the present application, the pressing rod 304 comprises a vertical rod 304a connected to the moving plate 303, and a horizontal rod 304b arranged on the end of the vertical rod 304a away from the moving plate 303 and perpendicular to the vertical rod 304a.

[0062] The working principle of the present application is as follows: when the moving block 103 moves downward from the highest position, the rack 207 moves downward synchronously and drives the gear 206 to rotate counterclockwise, the thread roller 205 is driven to rotate counterclockwise to tighten the connecting rope 208, and the pressing rod 304 is further lifted; when the moving block 103 moves upward from the lowest position to the joint area, the rack 207 drives the gear 206 to rotate clockwise, the thread roller 205 is driven to rotate clockwise to loosen the connecting rope 208, and the pressing rod 304 descends under the action of gravity until the connecting rope 208 is tightened again, at which time the pressing rod 204 completes the work of pressing the tail yarn.

[0063] It is worth noting that, in the absence of the torsional spring 209, the thread roller 205 has no ability to return to the original position, so after the cutting is completed, the moving block 103 needs to be driven to descend so that the rack 207 can again drive the gear 206 to rotate counterclockwise to ensure that the pressing rod 304 is lifted again; in the case of setting the torsional spring 209, the thread roller 205 will return to the original position after passing through the gear 206, so it is necessary to at least ensure that the end of the rack 207 engages with the gear 206 in the joint state, so as to avoid the pressing rod 304 being lifted by the torsional spring 209 and losing the effect of pressing the tail yarn.

[0064] In another embodiment, the first driving unit 1 further comprises a strip-shaped hole 105 arranged on the side of the support 102 away from the spinning frame a, and a limiting slide block 106 arranged on the side end of the moving block 103 and inserted into the strip-shaped hole 105. This arrangement is to enhance the movement stability of the moving block 103.

[0065] In another embodiment, the first driving unit 1 further comprises an opening 107 arranged on the limiting slide block 106, and a limiting rod 108 arranged in the strip-shaped hole 105 and passing through the opening 107. This arrangement is to further enhance the movement stability of the moving block 103.

[0066] The specific embodiments described herein are merely illustrative of the spirit of the application. Various modifications or changes in the specific embodiments described herein can occur to those skilled in the art to which the application pertains without departing from the spirit of the application, and it is understood that such modifications or changes are to be considered as within the scope of the application as defined by the appended claims.

Claims

1. A device for improving the splice rate of a spinning frame, comprising a base (10), a swaying arm device (11) disposed at the lower end of the base (10), and a suction pipe (12), characterized in that, Also includes: The first driving unit (1) is disposed on the base (10) and is used to drive the suction tube (12) to move closer to / away from the spindle (b). The second drive unit (2) is disposed on the side of the base (10) near the spinning machine (a); The pressing unit (3) is connected to the second drive unit (2) and pushes the tail yarn between the swing arm device (11) and the suction tube (12) downward under the drive of the second drive unit (2); The first drive unit (1) includes a drive motor (101) disposed on the base (10), a bracket (102) disposed at the lower end of the base (10) and extending to the spindle (b), a movable block (103) slidably connected to the bracket (102) and connected to the output shaft of the drive motor (101), and a tube hole (104) disposed on the movable block (103) for the suction tube (12) to pass through. The pressure unit (3) includes a mounting post (301) disposed at the lower end of the base (10) and parallel to the bracket (102), a channel (302) disposed in the mounting post (301), a movable plate (303) slidably connected in the channel (302), a pressure rod (304) disposed at the lower end of the movable plate (303) and extending to the outside of the mounting post (301), a limiting plate (305) disposed at the end of the channel (302), a first opening (306) disposed on the limiting plate (305) and through which the pressure rod (304) passes, a vertical rod (307) disposed on one side of the upper surface of the limiting plate (305), and a second opening (308) disposed on the movable plate (303) and through which the vertical rod (307) passes. The pressure bar (304) includes a vertical bar (304a) connected to the movable plate (303) and a horizontal bar (304b) disposed at the end of the vertical bar (304a) away from the movable plate (303) and perpendicular to the vertical bar (304a). The second drive unit (2) includes a mounting cavity (201) disposed in the mounting column (301) and communicating with the channel (302), a drive member (202) disposed in the mounting cavity (201) and connected to the moving plate (303), a mounting port (203) disposed on the side end of the bracket (102) near the mounting column (301), a fixed shaft (204) rotatably mounted in the mounting port (203), a wire roller (205) disposed on the fixed shaft (204), a gear (206) disposed on the fixed shaft (204), a rack (207) disposed on the side end of the moving block (103) and meshing with the gear (206), and a connecting rope (208) wound around the wire roller (205) and connected to the drive member (202).

2. The device for improving the splice rate of a spinning frame according to claim 1, characterized in that, The driving component (202) includes a wire hole (202a) provided on the side wall of the mounting cavity (201) and a fixed pulley (202b) rotatably provided in the mounting cavity (201); the connecting rope (208) is wound around the fixed pulley (202b) and its end is connected to the moving plate (303).

3. The device for improving the splice rate of a spinning frame according to claim 1, characterized in that, The second drive unit (2) also includes a torsion spring (209) disposed between the fixed shaft (204) and the wire roller (205).

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