spinning machine

Abstract

The spinning machine of the present application is provided with a spinning device, a yarn storage roller, a thread hanging member, a yarn release member, a winding device, a catching device, a thread joining section, a cutter, and a control section. In a state where a yarn defect is located upstream of the catching device in a yarn travel direction, the yarn release member inactivates the action of the thread hanging member on the yarn, and the rotation of the package is stopped or the rotation speed is tending to zero deceleration, the control section attracts the yarn with the catching device while rotating the yarn storage roller to deliver the yarn. In a state where the rotation of the package is stopped, the control section removes the yarn defect by causing the cutter to cut the yarn on the package side, and causes the thread joining section to join the yarn on the spinning device side and the yarn on the package side.

Description

Technical Field

[0001] This invention relates primarily to a spinning machine that winds yarn generated by a spinning device to form a package. Background Technology

[0002] Patent document 1 is Japanese Utility Model Application Publication No. 5-64172.

[0003] Patent Document 1 discloses a spinning machine. The spinning machine uses a winding device to wind yarn generated by a spinning device to form a package. The spinning machine includes a yarn end-catching device on the spinning unit side, a relaxation tube, and a package-side yarn end-catching device. The yarn end-catching device on the spinning unit side moves to the vicinity of the spinning nozzle to catch the yarn when the yarn breaks. The relaxation tube generates a suction flow to catch the yarn when the yarn breaks. Thus, a state is achieved where yarn is draped between the relaxation tube and the package. The package-side yarn end-catching device moves to the yarn draped between the relaxation tube and the package to attract the yarn. Then, by cutting the yarn, the package-side yarn end-catching device catches the yarn.

[0004] Patent Document 1 describes a method for reliably capturing yarn on the package side with less power consumption by attracting and capturing the yarn before it is wound onto the package. However, Patent Document 1 does not specify the location of yarn defects, etc. Therefore, the package needs to be reversed to prevent yarn defects from remaining in the package. In addition, the yarn capturing process is complicated because both a slack tube and a package-side yarn end capturing device are used to capture the yarn. Summary of the Invention

[0005] The present invention was made in view of the above circumstances, and its main objective is to provide a spinning machine that can remove yarn defects through a simple process without reversing the package when the yarn is captured on the package side.

[0006] The problem to be solved by the present invention is as described above. Next, the solution used to solve the problem and its effects will be explained.

[0007] According to an aspect of the present invention, a spinning machine with the following structure is provided. That is, the spinning machine includes a spinning device, a yarn holding roller, a yarn hanging component, an ineffective component, a winding device, a capturing device, a yarn receiving section, a cutter, and a control section. The spinning device spins yarn to generate yarn. The yarn holding roller is positioned downstream of the spinning device in the yarn travel direction and temporarily holds the yarn by winding it around its outer peripheral surface. The yarn hanging component winds the yarn around the outer peripheral surface of the yarn holding roller while in contact with the yarn, rotating integrally with the yarn holding roller. The ineffective component ineffectively neutralizes the effect of the yarn hanging component on the yarn. The winding device winds the yarn supplied by the spinning device to form a package. The capturing device is positioned between the yarn holding roller and the winding device in the yarn travel direction and is capable of attracting yarn located in the yarn path from the yarn holding roller to the winding device, attracting and capturing the yarn on the package side when the yarn is broken. The yarn splicing section splices the yarn on the spinning device side with the yarn on the package side. The cutter cuts the yarn between the capturing device and the yarn splicing section. When the yarn defect is upstream of the capturing device in the yarn travel direction, the ineffective component disables the effect of the yarn hanging component on the yarn, and the package rotation stops or the rotation speed is approaching zero deceleration, the control unit causes the yarn holding roller to rotate and feed the yarn out while simultaneously causing the capturing device to attract the yarn. When the package rotation stops, the control unit removes the yarn defect by causing the cutter to cut the yarn on the package side and causes the yarn splicing section to splice the yarn on the spinning device side with the yarn on the package side.

[0008] Therefore, the yarn containing defects is directly captured by the capturing device. Thus, it is essentially unnecessary to reverse the package to extract the defects. Furthermore, the defects are removed by cutting the yarn with a cutter at the point of splicing. Based on the above, yarn defects can be removed through a simple process.

[0009] Preferably, the spinning machine includes a yarn splicing device having the yarn splicing part and the cutter.

[0010] Therefore, the structure can be simplified compared to other structures that have cutters.

[0011] The spinning machine is preferably configured as follows: The spinning machine includes a first retention sensor that detects whether the yarn wound on the yarn retention roller is at or above a first retention level. The control unit continues to rotate the yarn retention roller in the direction of yarn delivery while simultaneously stopping the rotation of the package based on the detection result of the first retention sensor.

[0012] Therefore, the rotation of the roll can be stopped at the appropriate time.

[0013] The spinning machine is preferably configured such that it includes a second retention sensor that detects whether the yarn wound on the yarn retention roller is at least a second retention amount, which is greater than the first retention amount. The control unit adjusts the retention amount of the yarn retention roller based on the detection result of the second retention sensor during yarn winding.

[0014] Therefore, by placing two retention sensors at different locations according to the purpose, appropriate control can be achieved.

[0015] In the spinning machine, preferably, at least one of a waxing device for applying wax to the yarn and a yarn guide for guiding the yarn is disposed between the capturing device and the winding device in the yarn travel direction.

[0016] Since there is essentially no need to remove yarn defects that have been wound onto the package, these defects will not pass through the waxing device or yarn guide. Therefore, the frequency of yarn breakage can be reduced compared to methods that reverse the package.

[0017] The spinning machine is preferably configured as follows: The spinning machine includes a yarn monitoring device that monitors the condition of the yarn and detects yarn defects. The inactivation component inactivates the effect of the yarn-holding component on the yarn when a yarn defect is located on the yarn holding roller.

[0018] This allows the capturing device to accurately attract yarn defects.

[0019] The spinning machine is preferably configured as follows: When the yarn defect detected by the yarn monitoring device is a short yarn defect, the control unit, after the rotation of the package stops, simultaneously maintains the stop of the package's rotation and causes the splicing part to splice the yarn. When the yarn defect detected by the yarn monitoring device is a long yarn defect, the control unit, after the rotation of the package stops, reverses the package relative to the winding direction to draw the yarn defect from the package, and then causes the splicing part to splice the yarn.

[0020] Therefore, yarn defects can be removed essentially without reversing the package. Furthermore, if a yarn defect grows long enough to be wound onto the package, the package can be reversed to remove the defect.

[0021] The spinning machine is preferably configured such that the winding device has a separate traverse guide and a traverse drive. The traverse drive only drives the separate traverse guide. The control unit stops the traverse guide in the central region of the axial direction of the package when winding is interrupted.

[0022] When reversing the roll, the traverse guide needs to be moved outside the roll width area to avoid interfering with the reversal operation. However, in this structure, since roll reversal is essentially unnecessary, the action of moving the traverse guide can be omitted. Furthermore, it is not necessary to return the traverse guide to the central area when the roll winding restarts. Based on the above, the winding of the roll can be restarted smoothly.

[0023] The spinning machine is preferably configured such that the winding device has a separate winding bobbin and a bobbin drive unit. The separate winding bobbin rotates the package by contacting and rotating with the package. The bobbin drive unit drives the rotation of the separate winding bobbin. The control unit stops the rotation of the package by stopping the rotation of the package based on the bobbin drive unit.

[0024] Because each winding drum is equipped with a drum drive, the roll can be rotated at the appropriate speed or stopped at the appropriate time. Attached Figure Description

[0025] Figure 1 This is a front view showing the overall structure of a spinning machine according to one embodiment of the present invention.

[0026] Figure 2 This is a side view of the spinning unit and the yarn receiving trolley.

[0027] Figure 3 This is a flowchart illustrating the process of handling yarn breakage.

[0028] Figure 4 This is a side view of the spinning unit and the yarn receiving trolley, showing the state immediately after the yarn has been cut.

[0029] Figure 5 This is a side view of the spinning unit and the yarn receiving trolley, showing the state after the yarn has been captured by the capturing device.

[0030] Figure 6 This is a side view of the spinning unit and the yarn splicing trolley, showing the state in which the yarn on the package side and the yarn on the feed side are guided to the splicing device.

[0031] Figure 7 This is a side view of the spinning unit and the yarn splicing trolley, showing the state in which the yarn on the package side and the yarn on the feed side are spliced. Detailed Implementation

[0032] A spinning machine 1 according to one embodiment of the present invention will be described with reference to the accompanying drawings. In the following description, "upstream side" and "downstream side" refer to the upstream side and downstream side in the direction of travel of the yarn 5, the yarn sliver 4a, or the fiber bundle 4b, respectively.

[0033] like Figure 1 As shown, the spinning machine 1 includes a blower housing 111, a control box 112, multiple spinning units 2, and a yarn receiving trolley 80. The multiple spinning units 2 are arranged in a predetermined direction (parallel direction). Each spinning unit 2 spins yarn to generate yarn 5 and forms a package 7.

[0034] A blower 113, which functions as a negative pressure source, is installed inside the blower housing 111. A central control device 115, a display unit 116, and an operation unit 117 are installed inside the control box 112.

[0035] The central control unit 115 centrally manages and controls all parts of the spinning machine 1. The central control unit 115 connects to... (The diagram is omitted here). Figure 2 The unit control unit (control unit) 15 shown is connected. In this embodiment, each spinning unit 2 has a unit control unit 15, but a predetermined number (e.g., two or four) of spinning units 2 may share a single unit control unit 15. The central control device 115 and the unit control unit 15 are respectively configured as a well-known computer having a CPU, ROM, RAM, etc. (not shown).

[0036] The display unit 116 can display settings for the spinning units 2 and / or information related to the status of each spinning unit 2. The operation unit 117 is operated by the operator to set the spinning machine 1 and / or select information displayed on the display unit 116. The display unit 116 and the operation unit 117 may also be configured as a touch screen display.

[0037] like Figure 2 As shown, each spinning unit 2 includes a drafting device 21, a spinning device 22, a yarn storage device 23, a capturing device 24, and a winding device 25. These devices are arranged sequentially from the upstream side to the downstream side in the yarn travel direction.

[0038] The yarn receiving carriage 80 is designed to move relative to each spinning unit 2. One yarn receiving carriage 80 is provided for each plurality of spinning units 2. Figure 1 The diagram shows one yarn receiving carriage 80, but the spinning machine 1 may also have multiple yarn receiving carriages 80. As described later, the yarn receiving carriage 80 includes a yarn receiving device 82, a suction tube 83, and a suction nozzle 84.

[0039] The drafting device 21 is located at the upper part of the spinning unit 2. The drafting device 21 has multiple pairs of drafting rollers. Each pair of drafting rollers consists of two drafting rollers.

[0040] Specifically, the drafting device 21 has four pairs of drafting rollers. The four pairs of drafting rollers are arranged sequentially from the upstream side to the downstream side: a rear roller pair 41, a third roller pair 42, a middle roller pair 43, and a front roller pair 44. Each drafting roller in the middle roller pair 43 is provided with a conveyor belt 45.

[0041] Each of the four drafting roller pairs has a drive roller and a driven roller that are opposite each other. For each of the four drafting roller pairs, a drive unit, such as a motor (not shown), is provided on each drive roller. Each drive roller is driven to rotate about its axis by the drive unit. In this embodiment, a drive unit for each drive roller is provided for each spinning unit 2. Therefore, the drafting roller pair of a certain spinning unit 2 can operate independently relative to the drafting roller pairs of other spinning units 2. It should be noted that multiple drafting roller pairs of spinning units 2 can also be driven using a common drive unit.

[0042] The drafting device 21 stretches (drafts) a yarn 4a supplied from the yarn supply section (not shown) between the drive roller and driven roller of each drafting roller pair, thereby generating a fiber bundle 4b by clamping the yarn 4a supplied from the yarn supply section (not shown) between the drive roller and driven roller of each drafting roller pair. The fiber bundle 4b generated by the drafting device 21 is then supplied to the spinning device 22.

[0043] In this embodiment, the spinning device 22 is an air spinning device. The spinning device 22 generates yarn 5 by twisting the fiber bundle 4b generated by the drafting device 21 by causing a swirling airflow to act on it. The spinning device 22 is located downstream of the drafting device 21.

[0044] The spinning device 22 supplies the generated yarn 5 downstream. The spinning device 22 is equivalent to a yarn feeder for supplying the yarn 5. The yarn 5 generated by the spinning device 22 travels from the spinning device 22 toward the winding device 25 and is wound by the winding device 25. A yarn path for the yarn 5 to travel is formed between the spinning device 22 and the winding device 25.

[0045] The yarn holding device 23 draws out the yarn 5 generated by the spinning device 22 from the spinning device 22 and temporarily holds it. The yarn holding device 23 is located downstream of the spinning device 22 and upstream of the winding device 25.

[0046] The yarn retention device 23 includes a yarn retention roller 51, an electric motor 52, a yarn hanging component 53, a yarn detachment component (deactivation component) 55, a first retention amount sensor 56, and a second retention amount sensor 57.

[0047] The yarn retention roller 51 is driven to rotate by an electric motor 52. The yarn retention roller 51 winds the yarn 5 around its outer circumference and temporarily retains it. By rotating at a predetermined speed with the yarn 5 wound on its outer circumference, the yarn retention roller 51 can draw the yarn 5 out of the spinning device 22 at a predetermined speed.

[0048] The yarn-hanging component 53 is capable of hooking the yarn 5. The yarn-hanging component 53 is supported in a manner that allows it to rotate relative to the yarn-holding roller 51. For example, a torque (resistance torque) is applied to the yarn-hanging component 53 against its relative rotation relative to the yarn-holding roller 51 by a torque-generating mechanism, such as a magnetic mechanism. Therefore, if the tension applied to the yarn 5 is strong enough to overcome this resistance torque, the yarn-hanging component 53 rotates independently of the yarn-holding roller 51, unwinding the yarn 5 from the yarn-holding roller 51. If the tension applied to the yarn 5 is weaker than the resistance torque, the yarn-hanging component 53 rotates integrally with the yarn-holding roller 51, winding the yarn 5 onto the yarn-holding roller 51. It should be noted that a drive unit that rotates the yarn-hanging component 53 may also be provided.

[0049] The yarn release component 55 is positioned near the yarn holding roller 51. The yarn release component 55 is capable of performing a yarn release action that causes the yarn 5 to detach from the yarn holding component 53. The yarn release component 55 is as follows... Figure 1 The component shown is configured in an L-shape and is supported in a manner in which its ends can rotate.

[0050] Yarn release component 55 is configured to be able to Figure 2 The position shown (retreat position) and Figure 6 The yarn release member 55 moves between the indicated positions (yarn release positions). During its movement from the retracted position to the yarn release position, the yarn release member 55 passes through a space downstream of the yarn holding roller 51. At this time, if there is yarn 5 hooked on the yarn hanging member 53, the yarn release member 55 acts on the yarn 5 to cause it to detach from the yarn hanging member 53. By causing the yarn 5 to detach from the yarn hanging member 53, the action of the yarn hanging member 53 on the yarn 5 is nullified, and thus the yarn 5 wound on the yarn holding roller 51 unwound from the yarn holding roller 51.

[0051] Each yarn release component 55 is provided in each spinning unit 2, and each yarn release component 55 has a separate drive unit (motor or cylinder, etc.). The drive unit of the yarn release component 55 is controlled by the unit control unit 15. Therefore, the yarn release component 55 can operate independently of the yarn release components 55 of other spinning units 2.

[0052] The first accumulation sensor 56 and the second accumulation sensor 57 are respectively configured at appropriate positions (detection positions) facing the outer peripheral surface of the yarn accumulation roller 51. The first accumulation sensor 56 and the second accumulation sensor 57 detect whether there is yarn 5 at their respective detection positions. With this structure, the first accumulation sensor 56 detects whether the amount of yarn 5 wound on the yarn accumulation roller 51 is greater than or equal to the first accumulation amount. The second accumulation sensor 57 detects whether the amount of yarn 5 wound on the yarn accumulation roller 51 is greater than or equal to the second accumulation amount. The first accumulation sensor 56 is located upstream of the second accumulation sensor 57. On the yarn accumulation roller 51, yarn 5 is accumulated from the upstream side to the downstream side. Therefore, the second accumulation amount is greater than the first accumulation amount. The first accumulation sensor 56 and the second accumulation sensor 57 send a yarn presence / absence detection signal indicating whether there is yarn 5 at the detection position to the unit control unit 15.

[0053] The unit control unit 15 controls the winding process of the yarn 5 to maintain the yarn retention amount of the yarn retention roller 51 at a second retention amount. For example, if the yarn retention amount of the yarn retention roller 51 is less than the second retention amount, control is performed to increase the retention amount. The unit control unit 15 increases the retention amount by decreasing the winding speed of the package 7. In this case, the unit control unit 15 decreases the rotational speed of the winding drum 76 by decreasing the rotational speed of the drum drive motor 77. The unit control unit 15 may also decrease the rotational speed of the traverse drive motor 79 (the traverse speed of the traverse guide 78) in sync with the control of the rotational speed of the drum drive motor 77. When the yarn retention amount of the yarn retention roller 51 increases and the second retention amount sensor 57 detects the yarn 5 again, the unit control unit 15 stops increasing the winding speed of the package 7 and continues winding the package 7 at the set winding speed. When the lateral speed is also reduced, the unit control unit 15 returns the lateral speed to the set speed.

[0054] The yarn holding device 23 can temporarily hold the yarn 5 on the outer circumferential surface of the yarn holding roller 51, thus functioning as a buffer for the yarn 5. As a result, it can eliminate adverse conditions (such as slack in the yarn 5) caused by the inconsistency between the spinning speed and the winding speed (the speed at which the yarn 5 is wound onto the package 7) in the spinning device 22 for some reason.

[0055] A yarn monitoring device 47 is provided between the spinning device 22 and the yarn storage device 23. The yarn monitoring device 47 detects the state of the yarn 5 at a position upstream of the yarn storage device 23 (on the spinning device 22 side). The yarn 5 generated by the spinning device 22 passes through the yarn monitoring device 47 before being stored by the yarn storage device 23.

[0056] The yarn monitoring device 47 uses a light sensor to monitor the quality of the traveling yarn 5 and detect yarn defects contained in the yarn 5. Yarn defects include, for example, abnormalities in the thickness of the yarn 5 and / or foreign objects contained in the yarn 5. When a yarn defect is detected, the yarn monitoring device 47 sends a yarn defect detection signal to the unit control unit 15. Alternatively, the yarn monitoring device 47 may use, for example, an electrostatic capacitive sensor to monitor the quality of the yarn 5 instead of a light sensor. The yarn monitoring device 47 may also be configured to detect abnormalities in the tension of the yarn 5 as yarn defects.

[0057] The unit control unit 15 determines whether to cut the yarn 5 based on the detection result of the yarn monitoring device 47. Cutting the yarn 5 is achieved by controlling the spinning based on the spinning device 22 to stop spinning. Cutting the yarn 5 can also be achieved by stopping the drafting based on the drafting device 21 (e.g., the rotation of the back roller pair 41). Even if the supply of fiber bundle 4b from the drafting device 21 to the spinning device 22 is stopped, spinning based on the spinning device 22 is substantially interrupted. Alternatively, a cutter can be provided in the spinning unit 2, and the unit control unit 15 can use the cutter to cut the yarn 5. Even if the yarn 5 is cut by the cutter, the unit control unit 15 controls the spinning based on the spinning device 22 to substantially interrupt spinning.

[0058] When the yarn 5 breaks between the spinning device 22 and the winding device 25, the capturing device 24 attracts the yarn 5 from the package 7 side. The capturing device 24 is positioned downstream of the yarn holding device 23 and upstream of the winding device 25. Furthermore, the capturing device 24 is positioned to attract the yarn 5 located in the yarn path from the yarn holding device 23 to the winding device 25. This yarn path can be either when the yarn release member 55 is acting on the yarn 5, or when the yarn release member 55 is not acting on the yarn 5. Additionally, this yarn path can be either when tension is applied to tighten the yarn 5, or when the yarn 5 has relaxed. In contrast, the suction nozzle 84 is positioned away from the yarn path from the yarn holding device 23 to the winding device 25 in the standby state. In this embodiment, the capturing device 24 is fixed at a constant distance from the yarn path, but it can also be slightly movable. For example, the capturing device 24 can also move slightly towards or away from the yarn path. In other words, the movable length of the capturing device 24 is shorter than the movable length of the suction nozzle 84. When the yarn receiving carriage 80 (described later) operates on the spinning unit 2, the capturing device 24 is located upstream of the yarn receiving device 82 on the yarn receiving carriage 80. If the yarn 5 breaks off downstream of the spinning device 22 and upstream of the capturing device 24, the capturing device 24 can capture the yarn 5 on the package 7 side at a position upstream of the yarn receiving device 82.

[0059] In the event of a breakage in yarn 5, the unit control unit 15 determines whether to use the capturing device 24 or not, and appropriately controls the capturing device 24 based on this decision. The capturing device 24 and the suction nozzle 84 are selected to capture the yarn 5 on the package 7 side in an alternative manner. Therefore, using the capturing device 24 means not using the suction nozzle 84, and not using the capturing device 24 means using the suction nozzle 84.

[0060] The capturing device 24 includes a suction tube 61 and a yarn capturing detection sensor 63. A suction port 62 is formed at the front end (one end in the length direction) of the suction tube 61. The suction port 62 faces the yarn passage opening formed in the spinning unit 2. The suction port 62 of the capturing device 24 can also be configured to face the formed yarn passage opening for capturing. The suction tube 61 is connected to a negative pressure source such as a blower 113 via piping. This allows a suction flow (attraction force) to be generated in the suction port 62 (within the suction tube 61). Alternatively, a shutter (not shown) can be provided on the capturing device 24, and a suction flow can be generated in the suction port 62 by opening the shutter when needed. In this embodiment, the yarn capturing detection sensor 63 is disposed immediately downstream of the suction port 62 of the capturing device 24. The yarn capturing detection sensor 63 detects whether the capturing device 24 has successfully captured the yarn 5 on the package 7 side.

[0061] A yarn guide 48 and a waxing device 49 are provided at a position downstream of the yarn storage device 23 and upstream of the winding device 25.

[0062] The yarn guide 48 is positioned downstream of the yarn retention roller 51. The yarn guide 48 contacts and guides the yarn 5 along the yarn path. In this embodiment, the yarn guide 48 is positioned downstream of the waxing device 49.

[0063] The waxing device 49 holds the wax applied to the yarn 5. The waxing device 49 applies wax to the traveling yarn 5 between the yarn holding device 23 and the winding device 25. When the yarn 5 is wound into the package 7 without waxing, the waxing device 49 can be completely removed from the spinning unit 2, or only the wax can be removed from the waxing device 49.

[0064] The winding device 25 winds the yarn 5 after it has passed through the yarn storage device 23 to form a package 7. The winding device 25 is located downstream of the yarn storage device 23.

[0065] The winding device 25 includes a cradle device 71, a winding rotation device 72, and a traversing device 73.

[0066] The cradle assembly 71 has a pair of cradle arms 74. The cradle assembly 71 is capable of rotatably supporting the yarn tube 7a (and thus the package 7) used for winding the yarn 5 between the pair of cradle arms 74. The cradle arms 74 are rotatable about a pivot 75.

[0067] The package rotation device 72 includes a winding drum 76 and a drum drive motor (drum drive unit) 77. The winding drum 76 can contact the outer peripheral surface of the yarn tube 7a or the package 7. The output shaft of the drum drive motor 77 is connected to the winding drum 76 via a suitable mechanism. By driving the winding drum 76 with the drum drive motor 77, the package 7 can be rotated in the winding direction. The drum drive motor 77 is configured to rotate in both directions. Therefore, the package 7 can be rotated in the opposite direction of the winding direction (reverse rotation).

[0068] The traversing device 73 includes a traversing guide 78 and a traversing drive motor (traversing drive unit) 79. The traversing guide 78 can hook the yarn 5 wound onto the package 7. The traversing guide 78 can reciprocate along the axial direction of the package 7. The output shaft of the traversing drive motor 79 is connected to the traversing guide 78 via a suitable mechanism. By reciprocatingly driving the traversing guide 78 with the yarn 5 held on it, the yarn 5 wound onto the package 7 can be traversed.

[0069] The winding device 25 reciprocates the traverse guide 78 of the traverse device 73 while rotating the winding drum 76 of the package rotation device 72. Thus, the winding device 25 winds the yarn 5 onto the package 7 while simultaneously traversing the yarn 5.

[0070] In this embodiment, each spinning unit 2 has a separate bobbin drive motor 77 for its individual winding bobbin 76. Additionally, each spinning unit 2 has a separate traverse drive motor 79 for its individual traverse guide 78. Therefore, the winding bobbin 76 and the traverse guide 78 can operate independently of the winding bobbins 76 and traverse guides 78 of the other spinning units 2.

[0071] like Figure 1 As shown, a track 101 is provided in the spinning machine 1. The track 101 is configured to extend along the arrangement direction of the plurality of spinning units 2. The yarn receiving carriage 80 is configured to travel on the track 101. Thus, the yarn receiving carriage 80 can move relative to the plurality of spinning units 2.

[0072] The yarn splicing trolley 80 travels to the working position corresponding to the spinning unit 2 where the yarn 5 has broken, and performs the yarn splicing process in the spinning unit 2. The yarn splicing trolley 80 works in conjunction with the capturing device 24 or other devices provided by the spinning unit 2 to perform the yarn splicing process, or the yarn splicing process is performed using the devices provided by the yarn splicing trolley 80.

[0073] The yarn receiving trolley 80 has traveling wheels 81, a yarn receiving device 82, a suction pipe 83, a suction nozzle 84, and a trolley control unit 85.

[0074] The traveling wheels 81 are configured to be driven to rotate by a drive mechanism (e.g., a motor) that is not shown in the figure. By driving the traveling wheels 81, the yarn receiving carriage 80 can travel relative to each of the plurality of spinning units 2.

[0075] The straw 83 is a component with a tubular portion. An opening is formed at the front end of the straw 83. The straw 83 is connected to a suitable negative pressure source (e.g., a blower 113). Therefore, a suction flow can be generated at the opening at the front end of the straw 83. The straw 83 is supported in a rotatable manner. By rotating the straw 83, its front opening can be brought closer to the spinning device 22 to capture the yarn 5 on the feed section side (the yarn 5 on the spinning device 22 side).

[0076] The suction nozzle 84 is a component with a tubular portion. An opening is formed at the front end of the suction nozzle 84. The suction nozzle 84 is connected to a negative pressure source such as a blower 113. Therefore, a suction flow can be generated at the opening at the front end of the suction nozzle 84. The suction nozzle 84 is supported in a rotatable manner. By rotating the suction nozzle 84, its front opening can be brought closer to the winding device 25 to capture the yarn 5 on the side of the package 7.

[0077] The yarn splicing device 82 includes a yarn splicing section 82a and cutters 82b and 82c. The yarn splicing device 82 can take in the yarn 5 from the feed section side and the yarn 5 from the package 7 side by actuating a yarn gathering rod (not shown). The cutter 82b cuts the yarn 5 from the package 7 side between the yarn splicing section 82a and the capturing device 24, or between the yarn splicing section 82a and the suction nozzle 84. The cutter 82c cuts the yarn 5 from the feed section side between the yarn splicing section 82a and the suction tube 83. The yarn splicing section 82a splices the yarn 5 from the feed section side and the yarn 5 from the package 7 side. In this embodiment, the yarn splicing device 82 is a splicing device that uses a swirling airflow to twist the yarn ends together. The yarn splicing device 82 is not limited to this splicing device; for example, it can also be a mechanical knotter.

[0078] The trolley control unit 85 is configured as a well-known computer with a CPU, ROM, RAM, etc. (not shown). The trolley control unit 85 controls the yarn splicing process performed by the yarn splicing trolley 80 by controlling the operation of the various parts of the yarn splicing trolley 80.

[0079] Next, refer to Figures 3 to 7 This explains the process of using the capturing device 24 to handle the breakage of yarn 5.

[0080] In the following description, the situation of detecting yarn defect 5a and cutting yarn 5 will be explained, but the same process will be performed even if the yarn 5 breaks due to the increased tension applied to the yarn 5 by the spinning device 22 or drafting device 21. In addition, the unit control unit 15 will determine the use of the capturing device 24 at the appropriate time.

[0081] As described above, the unit control unit 15 determines whether there is a yarn defect 5a in the yarn 5 based on the detection result of the yarn monitoring device 47 (S101). If the unit control unit 15 determines that there is a yarn defect 5a in the yarn 5, it stops spinning based on the spinning device 22 and cuts the yarn 5 (S102). Figure 4 The image shows the state of yarn 5 immediately after it has been cut.

[0082] Here, the reversal of the package 7 when the yarn 5 on the package 7 side is captured using the capturing device 24 will be explained. Since there is a time lag between the detection of a yarn defect 5a on the yarn 5 and the cutting of the yarn 5, the yarn defect 5a may not necessarily be present at the yarn end of the yarn 5. Therefore, at the point when the capturing device 24 captures the yarn 5 on the package 7 side, the yarn defect 5a may have already been wound onto the package 7. Therefore, in order to reliably remove the yarn defect 5a from the package 7, it is necessary to reverse the package 7 while simultaneously attracting and capturing the yarn 5 using the capturing device 24 to draw out the yarn 5 containing the yarn defect 5a from the package 7. However, reversing the package 7 makes control complex and time-consuming. Moreover, the yarn defect 5a may break when the portion containing the yarn defect 5a is moved from the package 7 to the capturing device 24. Especially in the case where, as in this embodiment, there is a yarn guide 48 or a waxing device 49 between the capturing device 24 and the winding device 25, the possibility of the yarn defect 5a getting caught on these devices and breaking increases. Considering the above, this embodiment avoids reversing the roll 7 as much as possible.

[0083] When the yarn monitoring device 47 detects a yarn defect 5a, the unit control unit 15 determines the length of the yarn defect 5a (S103). The length of the yarn defect 5a can be calculated based on the yarn defect detection signal sent by the yarn monitoring device 47. If the yarn defect 5a is a short yarn defect (e.g., a thick knot or nipple), the unit control unit 15 performs yarn splicing without reversing the package 7. On the other hand, if the yarn defect 5a is a long yarn defect, at least a portion of the yarn defect 5a may have already been wound onto the package 7 at the time the length of the yarn defect 5a is determined. Therefore, the unit control unit 15 performs yarn splicing after reversing the package 7. More specifically, the unit control unit 15 reverses the package 7 by more than the amount required to remove the long yarn defect, and then stops the rotation of the package 7. The yarn splicing based on the splicing device 82 is performed while the rotation of the package 7 is stopped. The unit control unit 15 determines that the detected yarn defect 5a is a long yarn defect if the length is above the threshold, and determines that the detected yarn defect 5a is a short yarn defect if the length is less than the threshold.

[0084] If the unit control unit 15 determines that the length of yarn defect 5a is less than a threshold, it continues to feed yarn based on the yarn holding device 23 (rotation of the yarn holding roller 51) and wind yarn based on the winding device 25 until the amount held by the yarn holding roller 51 becomes less than the first amount held. Immediately after cutting the yarn 5, a large amount of yarn 5 is held on the yarn holding device 23. The yarn 5 held on the yarn holding device 23 (especially the yarn 5 located downstream) does not contain yarn defect 5a. Therefore, the unit control unit 15 waits for the capturing device 24 to attract the yarn 5 until the yarn 5 held on the yarn holding device 23 is wound onto the package 7 to a certain extent.

[0085] Specifically, the unit control unit 15 determines whether the yarn retention amount of the yarn retention roller 51 is less than the first retention amount (S104). This determination is based on whether a yarn detection signal is sent by the first retention amount sensor 56. The first retention amount is determined such that the yarn defect 5a is located on the yarn retention roller 51 at the time point when the retention amount of the yarn retention roller 51 becomes the first retention amount.

[0086] The unit control unit 15 performs a yarn defect removal operation (S105) when the yarn holding roller 51's holding amount is less than a first holding amount. The yarn defect removal operation includes: (1) stopping the rotation of the package 7, (2) actuating the yarn release member 55 (moving the yarn release member 55 from the retraction position to the yarn release position), and (3) generating a suction flow in the capture device 24. In addition, the yarn feeding process of the yarn holding roller 51 continues during the yarn defect removal operation. By stopping the rotation of the package 7, the yarn defect 5a can be prevented from being wound onto the package 7. By actuating the yarn release member 55, the yarn 5 is released from the yarn hanging member 53, and the effect of the yarn hanging member 53 on the yarn 5 is nullified, so the yarn 5 can be unwound from the yarn holding roller 51. After the yarn 5 passes through the yarn release member 55 and is attracted by the capture device 24, the yarn release member 55 moves from the yarn release position to the retraction position.

[0087] At the point in time when the defect removal action is performed, the defect 5a is located on the yarn holding roller 51. Therefore, at the point in time when the capturing device 24 captures the yarn 5, the defect 5a is also located on the yarn holding roller 51 (in other words, upstream of the capturing device 24). Therefore, the defect 5a is not wound onto the package 7 but is captured by the capturing device 24. Figure 5 The image shows the state of yarn defect 5a located on yarn retention roller 51 at the time when the capturing device 24 captures the yarn 5.

[0088] There are various patterns in the timing of the start (timing) or completion of the yarn defect removal operations (1) to (3). For example, operations (1) to (3) can be started simultaneously, or at least one operation can be performed slightly earlier than the others. Alternatively, operations (1) to (3) can be completed simultaneously, or at least one operation can be completed slightly earlier than the others. However, if the rotation of the package 7 continues after the capturing device 24 has captured the yarn 5, the yarn 5 temporarily captured by the capturing device 24 may detach from the capturing device 24. Therefore, at the point when the capturing device 24 captures the yarn 5, the rotation of the package 7 is preferably zero or close to zero.

[0089] By performing a yarn defect removal operation, the capturing device 24 captures the yarn defect 5a before it is wound onto the package 7. Afterwards, by continuing to feed the yarn using the yarn holding roller 51, the capturing device 24 also captures the yarn end of the yarn 5 on the package 7 side. Furthermore, by capturing the yarn 5 with the capturing device 24, the yarn 5 on the package 7 side is located near the yarn splicing device 82. To ensure that the yarn 5 on the package 7 side is located near the yarn splicing device 82, the yarn splicing device 82 can also be configured to move in the front-to-back direction relative to the yarn path. It should be noted that since the yarn defect 5a is not wound onto the package 7, the unit control unit 15 does not need to reverse the package 7. Therefore, the unit control unit 15 maintains the rotation of the package 7 at a standstill (rotation is prohibited) after the yarn defect removal operation is completed and until the yarn splicing is completed by the yarn splicing device 82. The process of maintaining the rotation of the package 7 at a standstill is not limited to the unit control unit 15 using a power (electric) to maintain the rotation of the cylinder drive motor 77 at a standstill. For example, the unit control unit 15 can also maintain the rotation of the roll 7 at a stop by not supplying power to the drum drive motor 77.

[0090] The unit control unit 15 stops the traverse guide 78 in the central region of the axial direction (wrap width direction) of the roll 7 when the rotation of the roll 7 stops (S106). The central region refers to the area including the center of the axial direction and its vicinity. As described above, since the traverse guide 78 and the traverse drive motor 79 of this embodiment are individually provided for each spinning unit 2, the traverse guide 78 can be stopped in the central region of the axial direction with simple processing. When the length of the yarn defect 5a is less than the threshold (when the yarn defect 5a is a short yarn defect), the roll 7 is not reversed, so it is not necessary to retract the traverse guide 78 to the end of the axial direction of the roll 7 or outside the area of ​​the width of the roll 7.

[0091] Next, the unit control unit 15 instructs the trolley control unit 85 to use the suction tube 83 to capture the yarn 5 on the yarn feeding side and guide it towards the yarn receiving device 82 (S107). Specifically, the suction tube 83 is rotated so that its front opening approaches the vicinity of the spinning device 22. Then, spinning is restarted by the spinning device 22, and the suction tube 83 attracts and captures the yarn 5 generated by the spinning device 22. Then, while capturing the yarn 5, the suction tube 83 moves towards the yarn guiding position, guiding the yarn 5 on the yarn feeding side to the vicinity of the yarn receiving device 82. In this series of actions, the yarn 5 on the spinning device 22 side is again stored in the yarn storing roller 51. Figure 6The diagram shows the state in which the yarn 5 on the package 7 side and the yarn 5 on the feed section side are guided to the yarn receiving device 82. Sometimes it is desirable to discard the yarn 5 generated and stored on the yarn holding roller 51 immediately after spinning based on the spinning device 22 has just restarted. In this case, by moving the yarn release member 55 from the retracted position to the yarn release position and neutralizing the action of the yarn hanging member 53 on the yarn 5, the yarn 5 on the yarn holding roller 51 can be sucked away using the suction tube 83. In this case, the yarn release member 55 also moves from the yarn release position to the retracted position after the suction removal of the yarn 5 is completed.

[0092] Next, the unit control unit 15 instructs the trolley control unit 85 to splice the yarn 5 on the package 7 side and the yarn 5 on the feed section side using the yarn splicing device 82 (S108). The detailed splicing process is as described above. The yarn 5 between the package 7 and the capturing device 24 is cut by the cutter 82b, thereby attracting and removing the yarn defect 5a by the capturing device 24. Figure 7 The state during the yarn splicing process is shown. After the yarn splicing is completed, the unit control unit 15 restarts the winding of the yarn 5 into the package 7 (S109).

[0093] When the unit control unit 15 determines that the length of yarn defect 5a is above a threshold (yarn defect 5a is a long yarn defect), it causes the capturing device 24 to generate a suction flow (S110). In this case, the timing of stopping the rotation of the package 7 is arbitrary; for example, the rotation of the package 7 can be stopped when the yarn capturing detection sensor 63 detects the yarn 5. Furthermore, when the length of yarn defect 5a is determined to be above the threshold, since the package 7 is reversed, the traverse guide 78 is stopped at the axial end region of the package 7 to avoid interference during reversal (S111). The end region refers to the region including the axial end and its vicinity.

[0094] Next, the unit control unit 15 reverses the package 7 while continuing the suction flow of the capturing device 24 to unwind the yarn 5 from the package 7 (S112). This allows the capturing device 24 to attract the yarn defect 5a wound onto the package 7. Then, similar to the case where the length of the yarn defect 5a is less than a threshold, the unit control unit 15 causes the yarn splicing device 82 to splice the yarn and the winding device 25 to restart the winding of the yarn 5. By actuating the cutter 82b during the splicing process of the yarn splicing device 82, the yarn 5 attracted by the capturing device 24 is cut, and the yarn 5 closer to the capturing device 24 than the cut portion (including the yarn 5 with long yarn defects) is attracted and removed by the capturing device 24. By performing processing corresponding to the length of the yarn defect 5a, the package 7 is not usually reversed, but only when necessary. Therefore, compared to reversing the package 7 every time, the probability of yarn breakage and operation time can be reduced.

[0095] As described above, the spinning machine 1 of this embodiment includes a spinning device 22, a yarn holding roller 51, a yarn hanging member 53, a yarn unwinding member 55, a winding device 25, a capturing device 24, a yarn receiving section 82a, a cutter 82b, and a unit control section 15. The spinning device 22 spins yarn to generate yarn 5. The yarn holding roller 51 is positioned downstream of the spinning device 22 in the yarn travel direction and temporarily holds the yarn 5 by winding it around its outer peripheral surface. The yarn hanging member 53 winds the yarn 5 onto the outer peripheral surface of the yarn holding roller 51 while in contact with the yarn 5. The yarn unwinding member 55 disables the effect of the yarn hanging member 53 on the yarn 5. The winding device 25 winds the yarn 5 supplied by the spinning device 22 to form a package 7. The capturing device 24 is positioned between the yarn holding roller 51 and the winding device 25 in the yarn travel direction, and is capable of attracting the yarn 5 located in the yarn path from the yarn holding roller 51 to the winding device 25. When the yarn 5 breaks, it attracts and captures the yarn 5 on the package 7 side. The yarn splicing part 82a splices the yarn 5 on the spinning device 22 side with the yarn 5 on the package 7 side. The cutter 82b cuts the yarn 5 between the capturing device 24 and the yarn splicing part 82a. When the yarn defect 5a is upstream of the capturing device 24 in the yarn travel direction, the yarn detachment member 55 disables the effect of the yarn hanging member 53 on the yarn 5, and the rotation of the package 7 stops or its rotational speed is approaching zero, the unit control unit 15 rotates the yarn holding roller 51 to deliver the yarn 5 while simultaneously causing the capturing device 24 to attract the yarn 5. With the rotation of the package 7 stopped, the unit control unit 15 removes the yarn defect 5a by cutting the yarn 5 on the package 7 side with the cutter 82b, and splices the yarn 5 on the spinning device 22 side with the yarn 5 on the package 7 side with the splicing unit 82a.

[0096] Therefore, the yarn 5 containing the yarn defect 5a is directly captured by the capturing device 24. Thus, it is essentially unnecessary to reverse the package 7 to extract the yarn defect 5a. Furthermore, the yarn defect 5a is removed by cutting the yarn 5 using the cutter 82b at the time of splicing. Based on the above, the yarn defect 5a can be removed through a simple process.

[0097] The spinning machine 1 of this embodiment includes a yarn receiving device 82, which has a yarn receiving part 82a and a cutter 82b.

[0098] Therefore, the structure can be simplified compared to another structure that has a cutter 82b.

[0099] The spinning machine 1 of this embodiment includes a first retention amount sensor 56, which detects whether the yarn 5 wound on the yarn retention roller 51 is at or above a first retention amount. The unit control unit 15 stops the rotation of the package 7 based on the detection result of the first retention amount sensor 56 while continuing to rotate the yarn retention roller 51 in the direction of feeding the yarn 5.

[0100] Therefore, the rotation of roll 7 can be stopped at the appropriate time.

[0101] The spinning machine 1 of this embodiment includes a second retention amount sensor 57, which detects whether the yarn 5 wound on the yarn retention roller 51 is a second retention amount or more than the first retention amount. The unit control unit 15 adjusts the retention amount of the yarn retention roller 51 based on the detection result of the second retention amount sensor 57 during the winding process of the yarn 5.

[0102] Therefore, by placing two retention sensors at different locations according to the purpose, appropriate control can be achieved.

[0103] In the spinning machine 1 of this embodiment, at least one of a waxing device 49 for applying wax to the yarn 5 and a yarn guide 48 for guiding the yarn 5 is arranged in the yarn travel direction and between the capturing device 24 and the winding device 25.

[0104] Since there is essentially no need to remove the yarn defect 5a that is wound onto the package 7, the yarn defect 5a will not pass through the waxing device 49 or the yarn guide 48. Therefore, the frequency of yarn breakage can be reduced compared to the method of reversing the package 7.

[0105] The spinning machine 1 of this embodiment includes a yarn monitoring device 47 that monitors the state of the yarn 5 and detects yarn defects 5a. The yarn detachment member 55 disables the effect of the yarn hanging member 53 on the yarn 5 when the yarn defect 5a is located on the yarn holding roller 51.

[0106] Therefore, the capturing device 24 can accurately attract yarn defects 5a.

[0107] In the spinning machine 1 of this embodiment, when the yarn defect 5a detected by the yarn monitoring device 47 is a short yarn defect, the unit control unit 15, after the rotation of the package 7 stops, causes the yarn splicing part 82a to splice the yarn while maintaining the rotation of the package 7 at a complete stop. When the yarn defect 5a detected by the yarn monitoring device 47 is a long yarn defect, the unit control unit 15, after the rotation of the package 7 stops, reverses the package 7 relative to the winding direction to pull the yarn defect 5a out of the package 7, and then causes the yarn splicing part 82a to splice the yarn.

[0108] Therefore, yarn defect 5a can be removed essentially without reversing the package 7. Furthermore, if yarn defect 5a grows long enough to be wound onto the package 7, the package 7 can be reversed to remove yarn defect 5a.

[0109] In the spinning machine 1 of this embodiment, the winding device 25 includes a separate traverse guide 78 and a traverse drive motor 79. The traverse drive motor 79 drives only the separate traverse guide 78. When winding is interrupted, the unit control unit 15 stops the traverse guide 78 in the central region of the axial direction of the package 7.

[0110] When reversing the roll 7, the traverse guide 78 needs to be moved outside the roll width area to avoid interfering with the reversal operation. However, in this structure, since reversing the roll 7 is essentially unnecessary, the action of moving the traverse guide 78 can be omitted. Furthermore, it is not necessary to return the traverse guide 78 to the central area when the winding of the roll 7 restarts. Based on the above, the winding of the roll 7 can be restarted smoothly.

[0111] In the spinning machine 1 of this embodiment, the winding device 25 includes a separate winding bobbin 76 and a bobbin drive motor 77. The separate winding bobbin 76 rotates the package 7 by contacting and rotating with it. The bobbin drive motor 77 drives the rotation of the separate winding bobbin 76. The unit control unit 15 stops the rotation of the package 7 by stopping the rotation of the package 7 based on the bobbin drive motor 77.

[0112] Since each winding drum 76 is equipped with a drum drive motor 77, the roll 7 can be rotated at an appropriate speed or stopped at an appropriate time.

[0113] The preferred embodiments of the present invention have been described above, but the above structure can be modified, for example, as follows.

[0114] In the spinning unit 2, a yarn guide may also be provided between the yarn retention roller 51 and the suction port 62 of the capturing device 24. The suction port 62 is configured to open between the yarn guide and the yarn guide 48.

[0115] Although the spinning machine 1 is equipped with the capturing device 24 and the suction nozzle 84, the suction nozzle 84 can be omitted. The spinning machine 1 may also be without the yarn receiving trolley 80, and instead each spinning unit 2 may be equipped with the device required for yarn receiving.

[0116] The effect of the yarn-hanging component 53 on the yarn 5 can also be neutralized by using a component different from the yarn-detaching component 55. For example, the effect of the yarn-hanging component 53 on the yarn 5 can be neutralized by providing and controlling a motor that drives the yarn-hanging component 53. Alternatively, the effect of the yarn-hanging component 53 on the yarn 5 can be neutralized by using a stop that contacts the yarn-hanging component 53 to restrict its movement.

[0117] In the above embodiment, the cutter 82b of the yarn splicing device 82 is used to cut the portion containing the yarn defect 5a. Alternatively, a cutter provided independently of the yarn splicing device 82 can be used to cut the portion containing the yarn defect 5a. In this case, the cutter is provided inside the capturing device 24 or between the capturing device 24 and the yarn splicing portion 82a.

[0118] The flowchart shown in the above embodiment is an example. Some processes may be omitted, some processes may be modified, or new processes may be added. For example, if it is believed that a yarn defect 5a longer than the threshold will not be generated, the process corresponding to the length of the yarn defect 5a may be omitted.

[0119] The process described in the above embodiment as being performed by the unit control unit 15 can also be carried out using the central control device 115 or the trolley control unit 85.

[0120] The spinning machine 1 may also include an auxiliary device for attracting the yarn 5 to the auxiliary capture device 24. For example, the auxiliary device is positioned opposite the suction port 62 of the capture device 24. The auxiliary device presses the yarn 5 toward the suction port 62 of the capture device 24 by jetting gas, or by contacting and pressing the yarn 5 toward the suction port 62 of the capture device 24.

[0121] In the above embodiment, the yarn 5 is drawn out from the spinning device 22 using the yarn retention device 23. However, instead of the yarn retention device 23, a pair of guide rollers may be provided as a guide roller at a position downstream of the spinning device 22, and the yarn 5 may be drawn out from the spinning device 22 using the guide rollers. In this case, the yarn retention device 23 and / or a mechanical compensator may also be provided at a position downstream of the guide rollers.

[0122] In the spinning machine 1, each device is arranged in the height direction of the machine so that the yarn 5 supplied from the upper side is wound on the lower side. However, each device may also be arranged so that the yarn 5 supplied from the lower side is wound on the upper side.

Claims

1. A spinning machine, characterized in that, have: A spinning device that spins yarn to produce yarn; A yarn retention roller is positioned downstream of the spinning device in the yarn travel direction and temporarily retains the yarn by winding it around the outer peripheral surface. A yarn-winding component that winds yarn onto the outer circumferential surface of the yarn-winding roller while rotating integrally with the yarn-winding roller in contact with the yarn. A deactivating component that disables the effect of the yarn-hanging component on the yarn; A winding device that winds the yarn supplied by the spinning device to form a package; A yarn splicing section, which splices the yarn on the spinning device side with the yarn on the package side; A capturing device is disposed in the yarn travel direction between the yarn holding roller and the winding device, and is capable of attracting the yarn located in the yarn path from the yarn holding roller to the winding device. When the yarn breaks off at a position downstream of the spinning device and upstream of the capturing device, the capturing device attracts and captures the yarn on the package side at a position upstream of the yarn receiving part. A cutter that cuts the yarn between the capturing device and the yarn receiving portion; and Control Department When the yarn defect is located upstream of the yarn travel direction compared to the capturing device, the invalidation component renders the effect of the yarn hanging component on the yarn ineffective, and the rotation of the package stops or the rotation speed is approaching zero deceleration, the control unit simultaneously causes the yarn holding roller to rotate and feed the yarn out while the capturing device attracts the yarn. With the rotation of the package stopped, the control unit removes the yarn defect by cutting the yarn on the package side with the cutter, and the splicing unit splices the yarn on the spinning device side with the yarn on the package side.

2. The spinning machine according to claim 1, characterized in that, It is equipped with a yarn splicing device, which has the yarn splicing part and the cutter.

3. The spinning machine according to claim 1, characterized in that, It is equipped with a first retention amount sensor, which detects whether the yarn wound on the yarn retention roller is above a first retention amount. While the control unit continues to rotate the yarn retention roller in the direction of yarn delivery, it stops the rotation of the package based on the detection result of the first retention amount sensor.

4. The spinning machine according to claim 2, characterized in that, It is equipped with a first retention amount sensor, which detects whether the yarn wound on the yarn retention roller is above a first retention amount. While the control unit continues to rotate the yarn retention roller in the direction of yarn delivery, it stops the rotation of the package based on the detection result of the first retention amount sensor.

5. The spinning machine according to claim 3, characterized in that, It is equipped with a second retention sensor that detects whether the amount of yarn wound on the yarn retention roller is a second retention amount that is greater than the first retention amount. The control unit adjusts the amount of yarn stored in the yarn storage rollers based on the detection results of the second storage sensor during the yarn winding process.

6. The spinning machine according to claim 4, characterized in that, It is equipped with a second retention sensor that detects whether the amount of yarn wound on the yarn retention roller is a second retention amount that is greater than the first retention amount. The control unit adjusts the amount of yarn stored in the yarn storage rollers based on the detection results of the second storage sensor during the yarn winding process.

7. The spinning machine according to any one of claims 1 to 6, characterized in that, Between the capturing device and the winding device in the yarn travel direction, at least one of a waxing device for applying wax to the yarn and a yarn guide for guiding the yarn is disposed.

8. The spinning machine according to any one of claims 1 to 6, characterized in that, A yarn monitoring device that monitors the condition of the yarn and detects yarn defects. The invalidation component renders the effect of the yarn hanging component on the yarn ineffective when the yarn defect is located on the yarn retention roller.

9. The spinning machine according to claim 7, characterized in that, A yarn monitoring device that monitors the condition of the yarn and detects yarn defects. The invalidation component renders the effect of the yarn hanging component on the yarn ineffective when the yarn defect is located on the yarn retention roller.

10. The spinning machine according to claim 8, characterized in that, If the yarn defect detected by the yarn monitoring device is a short yarn defect, the control unit, after the rotation of the package stops, simultaneously maintains the stop of rotation of the package and causes the yarn splicing part to splice the yarn. If the yarn defect detected by the yarn monitoring device is a long yarn defect, the control unit reverses the roll relative to the winding direction after the rotation of the roll stops to draw the yarn defect out of the roll, and then the splicing unit splices the yarn.

11. The spinning machine according to claim 9, characterized in that, If the yarn defect detected by the yarn monitoring device is a short yarn defect, the control unit, after the rotation of the package stops, simultaneously maintains the stop of rotation of the package and causes the yarn splicing part to splice the yarn. If the yarn defect detected by the yarn monitoring device is a long yarn defect, the control unit reverses the roll relative to the winding direction after the rotation of the roll stops to draw the yarn defect out of the roll, and then the splicing unit splices the yarn.

12. The spinning machine according to any one of claims 1-6 and 9-11, characterized in that, The winding device includes: Individual lateral guide; and The lateral drive unit drives only the individual lateral guide. The control unit stops the traverse guide in the central region of the axial direction of the roll when the winding is interrupted.

13. The spinning machine according to claim 7, characterized in that, The winding device includes: Individual lateral guide; and The lateral drive unit drives only the individual lateral guide. The control unit stops the traverse guide in the central region of the axial direction of the roll when the winding is interrupted.

14. The spinning machine according to claim 8, characterized in that, The winding device includes: Individual lateral guide; and The lateral drive unit drives only the individual lateral guide. The control unit stops the traverse guide in the central region of the axial direction of the roll when the winding is interrupted.

15. The spinning machine according to any one of claims 1-6, 9-11, 13, and 14, characterized in that, The winding device includes: A separate winding drum, which rotates the roll by contacting and rotating it; and A drum drive unit that rotates the individual winding drum. The control unit stops the rotation of the roll by stopping the rotation of the roll based on the tube drive unit.

16. The spinning machine according to claim 7, characterized in that, The winding device includes: A separate winding drum, which rotates the roll by contacting and rotating it; and A drum drive unit that rotates the individual winding drum. The control unit stops the rotation of the roll by stopping the rotation of the roll based on the tube drive unit.

17. The spinning machine according to claim 8, characterized in that, The winding device includes: A separate winding drum, which rotates the roll by contacting and rotating it; and A drum drive unit that rotates the individual winding drum. The control unit stops the rotation of the roll by stopping the rotation of the roll based on the tube drive unit.

18. The spinning machine according to claim 12, characterized in that, The winding device includes: A separate winding drum, which rotates the roll by contacting and rotating it; and A drum drive unit that rotates the individual winding drum. The control unit stops the rotation of the roll by stopping the rotation of the roll based on the tube drive unit.

Images