Shuttle peg residual thread removing device and full-shuttle automatic shuttle changing winding machine

Abstract

The utility model discloses a shuttle peg remaining thread removing device which comprises a suction mechanism and a thread taking mechanism, the thread taking mechanism is located beside the suction mechanism, the suction mechanism comprises an air suction pipe, and the air suction pipe comprises a waste suction opening; the thread taking mechanism comprises a thread taking clamp, a thread taking driving assembly, a thread shifting rod and a thread shifting driving assembly, the thread taking driving assembly is connected with and drives the thread taking clamp to move relative to the shuttle peg, and when the thread taking clamp moves to be close to the shuttle peg, the thread taking clamp stretches into a winding groove of the shuttle peg; the thread shifting rod is located on the side, away from the suction mechanism, of the thread taking clamp, the thread shifting driving assembly is connected with and drives the thread shifting rod to move relative to the suction mechanism, and when the thread shifting rod moves to be close to the suction mechanism, the thread shifting rod can abut against remaining threads taken out by the thread taking clamp. And the residual thread is fed into the waste suction port of the air suction pipe. The device for removing the residual threads in the shuttle peg can improve the removing effect of the residual threads in the shuttle peg. The utility model further discloses a full-shuttle automatic shuttle changing winding machine which comprises the shuttle peg remaining thread removing device.

Description

TECHNICAL FIELD

[0001] The utility model relates to sewing machine field especially relates to a bobbin surplus thread removing device and full shuttle automatic shuttle changing winding machine. BACKGROUND

[0002] Sewing machine is with one or more bottom thread, on the fabric form one or more stitch, make one or more fabric interweave or sew up the machine. The existing sewing machine needle plate below generally is provided with bobbin rotating device, is provided with bobbin in bobbin rotating device, and the bobbin is wound with bottom thread to cooperate with the face thread on the head needle to complete the sewing of fabric together. However, the sewing machine usually all does not intermittently work, and the thread amount on the bobbin is limited, therefore in order to meet the demand of the continuous work of sewing machine, the bobbin in the bobbin rotating device needs to be replaced constantly in the process of sewing machine work, and some sewing machine will set up automatic shuttle changing winding machine beside the bobbin rotating device, which is used to replace the bobbin in the bobbin rotating device, and wind new bottom thread in the replaced bobbin.

[0003] In the process of changing shuttle, there is still a certain amount of surplus thread on the replaced bobbin, if the new bottom thread is wound, the automatic shuttle changing winding machine must first remove the surplus thread remaining on the bobbin. In the patent application No. CN202321056350.0, a bobbin surplus thread suction device for automatic shuttle changing winding machine is disclosed, which comprises a suction pipe, a fixed roller mechanism and a movable roller mechanism,

[0004] The suction pipe comprises a suction port;

[0005] The fixed roller mechanism comprises a fixed roller and a roller driving assembly, the fixed roller is arranged in front of the suction port of the suction pipe, and the roller driving assembly is connected to drive the fixed roller to rotate;

[0006] The movable roller mechanism comprises a movable roller and a roller moving assembly, the movable roller is arranged in front of the suction port of the suction pipe and is arranged opposite to the fixed roller, the roller moving assembly is connected to drive the movable roller to move relative to the fixed roller, when the movable roller approaches the fixed roller, the movable roller is pressed tightly with the fixed roller, when the movable roller moves away from the fixed roller, the suction port of the suction pipe is exposed from between the fixed roller and the movable roller.

[0007] The excess thread suction device of the above patent relies on the suction pipe to suck the excess thread on the bobbin to between the movable roller and the fixed roller, and then the movable roller and the fixed roller jointly compress and clamp the excess thread, and then the fixed roller rotates to completely suck away the excess thread on the bobbin and send it into the suction pipe. However, the suction force of the suction pipe is limited, so it is necessary to set the excess thread suction device as close to the bobbin as possible, or set a special moving mechanism to move the suction pipe, the fixed roller mechanism and the movable roller mechanism close to the bobbin when sucking the excess thread.

[0008] However, no matter how close the suction pipe is to the bobbin, it cannot extend into the winding groove of the bobbin to suck the excess thread, and the effect of sucking the excess thread is always limited by its own suction force. Moreover, if the suction pipe is too close to the bobbin, the suction pipe, the fixed roller mechanism and the movable roller mechanism may interfere with the structure of the bobbin winding device, affecting the structural design of the bobbin winding device. Utility model content

[0009] In order to solve the above problems of the prior art, the utility model provides an excess thread removal device for a bobbin, which can improve the removal effect of the excess thread in the bobbin.

[0010] The utility model also provides a full-bobbin automatic bobbin changing winding machine comprising the above excess thread removal device for a bobbin.

[0011] The technical problems to be solved by the utility model are solved by the following technical solutions.

[0012] An excess thread removal device for a bobbin comprises a suction mechanism and a thread taking mechanism, the thread taking mechanism is located beside the suction mechanism,

[0013] The suction mechanism comprises a suction pipe, and the suction pipe comprises a waste suction port.

[0014] The thread taking mechanism comprises a thread taking clamp, a thread taking driving assembly, a thread pushing rod and a thread pushing driving assembly, the thread taking driving assembly is connected to drive the thread taking clamp to move relative to the bobbin, and when the thread taking clamp moves close to the bobbin, it extends into the winding groove of the bobbin; the thread pushing rod is located on the side of the thread taking clamp away from the suction mechanism, the thread pushing driving assembly is connected to drive the thread pushing rod to move relative to the suction mechanism, and when the thread pushing rod moves close to the suction mechanism, it can push the excess thread taken out by the thread taking clamp and send the excess thread into the waste suction port of the suction pipe.

[0015] Further, the wire taking clamp comprises a fixed clamp body, a movable clamp body and a wire clamping driver, the fixed clamp body comprises a fixed clamp head provided with a side slot extending along the axial direction; the movable clamp body comprises a movable clamp head arranged in the side slot and movable along the axial direction of the fixed clamp head to clamp or release the excess wire in the side slot in cooperation with the fixed clamp head; the wire clamping driver is arranged on the fixed clamp body and connected with the movable clamp body to drive the movable clamp body to move along the axial direction of the fixed clamp head.

[0016] Further, the fixed clamp body further comprises a first connecting part and a first limiting part, the first connecting part, the first limiting part and the fixed clamp head are sequentially connected along the axial direction, the first connecting part is connected with the wire taking driving assembly, and the first limiting part is provided with a first limiting slot extending along the axial direction; the movable clamp body further comprises a second connecting part and a second limiting part, the second connecting part is connected with the wire clamping driver, and the second limiting part is provided with a first limiting block embedded in the first limiting slot; the wire clamping driver is arranged on the first connecting part of the fixed clamp body.

[0017] Further, the fixed clamp head is provided with a second limiting slot extending along the axial direction, and the movable clamp head is provided with a second limiting block embedded in the second limiting slot.

[0018] Further, the first limiting slot has a first limiting direction, the second limiting slot has a second limiting direction, and the first limiting direction is perpendicular to the second limiting direction.

[0019] Further, the wire taking mechanism further comprises a rotary fixing seat, a middle part of the wire pulling rod is rotatably arranged on the rotary fixing seat; one end of the wire pulling rod away from the shuttle core is rotatably connected with the wire pulling driving assembly, and the other end close to the shuttle core is provided with a wire pulling head; one side of the wire pulling head facing the suction mechanism is provided with a wire pulling arc surface perpendicular to the excess wire.

[0020] Further, the wire taking driving assembly is arranged on the rotary fixing seat.

[0021] Further, the air suction pipe further comprises an air suction port and a waste outlet, the suction mechanism further comprises an air suction assembly connected with the air suction port of the air suction pipe; the air suction pipe is arranged obliquely, the waste suction port is located at the oblique upper end of the air suction pipe, the waste outlet is located at the oblique lower end of the air suction pipe, and the air suction port is located on the side surface of the air suction pipe.

[0022] Further, the suction mechanism further comprises:

[0023] The fixed roller is arranged in front of the suction port of the suction pipe, and the roller rotating mechanism is connected to drive the fixed roller to rotate.

[0024] The movable roller is arranged in front of the suction port of the suction pipe and opposite to the fixed roller, and the roller moving mechanism is connected to drive the movable roller to move relative to the fixed roller.

[0025] When the movable roller is close to the fixed roller, the movable roller is pressed against the fixed roller, and when the movable roller is away from the fixed roller, the suction port of the suction pipe is exposed from between the fixed roller and the movable roller.

[0026] The shuttle core winding device, the shuttle core replacing device and the shuttle core surplus thread removing device are arranged beside the shuttle core winding device.

[0027] The shuttle core replacing device is used for replacing the shuttle core on the shuttle core winding device.

[0028] The shuttle core surplus thread removing device is used for removing the surplus thread in the shuttle core on the shuttle core winding device.

[0029] The shuttle core winding device is used for winding new bottom thread on the shuttle core.

[0030] The shuttle core surplus thread removing device of the utility model is provided with the thread taking mechanism beside the suction mechanism, so that the thread taking clamp of the thread taking mechanism is first extended into the winding groove of the shuttle core to take out the surplus thread from the shuttle core before the suction mechanism sucks the surplus thread, and then the surplus thread taken out by the thread taking clamp is sent into the suction port of the suction pipe by the thread pushing rod of the thread taking mechanism, so that the problem of poor suction effect of the surplus thread caused by the fact that the suction pipe cannot extend into the winding groove of the shuttle core is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 The structure schematic view of the shuttle core surplus thread removing device is provided.

[0032] Figure 2 The structure schematic view of the thread taking mechanism in the shuttle core surplus thread removing device is provided.

[0033] Figure 3 The structure schematic view of the thread taking clamp in the shuttle core surplus thread removing device is provided.

[0034] Figure 4 The structure schematic view of the suction mechanism in the shuttle core surplus thread removing device is provided.

[0035] Figure 5 The structure schematic diagram of the full-shuttle automatic shuttle changing and winding machine is provided. DETAILED DESCRIPTION

[0036] The utility model will be explained in detail below by combining with the drawings and examples, the example of the example is shown in the drawings, wherein the same or similar label represents the same or similar element or element with the same or similar function throughout. The examples described below by referring to the drawings are exemplary, and are intended to explain the utility model, and cannot be understood as limiting the utility model.

[0037] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the indicated device or element to have a specific orientation, to be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model.

[0038] In addition, the terms "first", "second", "third" are only for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first", "second", "third" can explicitly or implicitly include one or more features. In the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise specifically limited.

[0039] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing", "setting" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication or interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0040] Example one

[0041] As shown in Figure 1 and 2 A shuttle core excess line removing device, comprising a suction mechanism 31 and a thread taking mechanism 32, the thread taking mechanism 32 is beside the suction mechanism 31,

[0042] The suction mechanism 31 comprises a suction pipe 311, wherein the suction pipe 311 comprises a waste suction port 311a;

[0043] The thread taking mechanism 32 comprises a thread taking clamp 321, a thread taking drive assembly 322, a thread pushing rod 323 and a thread pushing drive assembly 324, wherein the thread taking drive assembly 322 is connected to drive the thread taking clamp 321 to move relative to the bobbin 50, the thread taking clamp 321 extends into the winding groove of the bobbin 50 when moving close to the bobbin 50, the thread pushing rod 323 is located on the side of the thread taking clamp 321 away from the suction mechanism 31, the thread pushing drive assembly 324 is connected to drive the thread pushing rod 323 to move relative to the suction mechanism 31, the thread pushing rod 323 can abut against the remaining thread taken out by the thread taking clamp 321 and send the remaining thread into the waste suction port 311a of the suction pipe 311 when moving close to the suction mechanism 31.

[0044] The thread taking mechanism 32 is arranged beside the suction mechanism 31, so that the thread taking clamp 321 of the thread taking mechanism 32 extends into the winding groove of the bobbin 50 to take out the remaining thread from the bobbin 50 before the suction mechanism 31 sucks the remaining thread, and then the thread pushing rod 323 of the thread taking mechanism 32 sends the remaining thread taken out by the thread taking clamp 321 into the waste suction port 311a of the suction pipe 311, so that the problem that the suction pipe 311 cannot extend into the winding groove of the bobbin 50 and the effect of sucking the remaining thread is poor is avoided.

[0045] When the remaining thread is removed, the thread taking drive assembly 322 drives the thread taking clamp 321 to move close to the bobbin 50 first, so that the thread taking clamp 321 extends into the winding groove of the bobbin 50, then the thread taking clamp 321 clamps the thread end of the remaining thread in the bobbin 50, the thread taking drive assembly 322 drives the thread taking clamp 321 to move away from the bobbin 50 again, so that the thread taking clamp 321 takes out the clamped remaining thread from the bobbin 50, then the thread pushing drive assembly 324 drives the thread pushing rod 323 to move close to the suction mechanism 31, so that the thread pushing rod 323 abuts against the remaining thread taken out by the thread taking clamp 321 and sends the remaining thread into the waste suction port 311a of the suction pipe 311, then the thread taking clamp 321 releases the thread end of the remaining thread, finally the suction mechanism 31 starts the suction pipe 311 to suck the remaining thread in the waste suction port 311a, and the thread pushing drive assembly 324 drives the thread pushing rod 323 to move away from the suction mechanism 31.

[0046] As Figure 3The taking line clamp 321 comprises a fixed clamp body 3211, a movable clamp body 3212 and a line clamping driver 3213. The fixed clamp body 3211 comprises a fixed clamp head 3211c provided with a side slot 3211d extending along the axial direction. The movable clamp body 3212 comprises a movable clamp head 3212c arranged in the side slot 3211d and movable along the axial direction of the fixed clamp head 3211c to clamp or release the excess line in the side slot 3211d in cooperation with the fixed clamp head 3211c. The line clamping driver 3213 is arranged on the fixed clamp body 3211 and connected with the movable clamp body 3212 to drive the movable clamp body 3212 to move along the axial direction of the fixed clamp head 3211c.

[0047] The fixed clamp body 3211 further comprises a first connecting part 3211a and a first limiting part 3211b. The first connecting part 3211a, the first limiting part 3211b and the fixed clamp head 3211c are sequentially connected along the axial direction. The first connecting part 3211a is connected with the line taking driving assembly 322. The first limiting part 3211b is provided with a first limiting slot 3211e extending along the axial direction. The movable clamp body 3212 further comprises a second connecting part 3212a and a second limiting part 3212b. The second connecting part 3212a, the second limiting part 3212b and the movable clamp head 3212c are sequentially connected along the axial direction. The second connecting part 3212a is connected with the line clamping driver 3213. The second limiting part 3212b is provided with a first limiting block 3212d embedded in the first limiting slot 3211e. The line clamping driver 3213 is arranged on the first connecting part 3211a of the fixed clamp body 3211.

[0048] The fixed clamp head 3211c is provided with a second limiting slot 3211f extending along the axial direction. The movable clamp head 3212c is provided with a second limiting block 3212e embedded in the second limiting slot 3211f.

[0049] Preferably, the first limiting slot 3211e has a first limiting direction, and the second limiting slot 3211f has a second limiting direction. The first limiting direction is perpendicular to the second limiting direction.

[0050] In this embodiment, the first limiting direction and the second limiting direction are the width directions of the first limiting slot 3211e and the second limiting slot 3211f respectively. The first limiting block 3212d and the second limiting block 3212e respectively abut against the two side slot walls along the respective width directions of the first limiting slot 3211e and the second limiting slot 3211f.

[0051] The thread taking driving component 322 comprises a thread taking driver, and the fixed clamping body 3211 is arranged on the output end of the thread taking driver. In the embodiment, the thread taking driver and the thread clamping driver 3213 are both linear air cylinders.

[0052] The thread taking mechanism 32 further comprises a rotating fixed seat 325, and the middle part of the thread poking rod 323 is rotatably arranged on the rotating fixed seat 325. The end of the thread poking rod 323 away from the bobbin 50 is rotatably connected with the thread poking driving component 324, and the end close to the bobbin 50 is provided with a poking rod head 3231. The side of the poking rod head 3231 facing the suction mechanism 31 is provided with a thread poking arc surface 3231a perpendicular to the excess thread.

[0053] The thread poking driving component 324 comprises a thread poking driver, and the end of the thread poking rod 323 away from the bobbin 50 is rotatably connected with the output end of the thread poking driver. In the embodiment, the thread poking driver is a linear air cylinder.

[0054] Preferably, the thread taking driving component 322 is arranged on the rotating fixed seat 325 of the thread taking driving component 322.

[0055] Embodiment Two

[0056] As an optimized scheme of the embodiment one, in the embodiment, as shown in Figure 4 The suction mechanism 31 further comprises:

[0057] A fixed roller 313 and a roller rotating mechanism 314. The fixed roller 313 is arranged in front of the waste suction port 311a of the suction pipe 311, and the roller rotating mechanism 314 is connected to drive the fixed roller 313 to rotate.

[0058] A movable roller 316 and a roller moving mechanism 317. The movable roller 316 is arranged opposite to the fixed roller 313 in front of the waste suction port 311a of the suction pipe 311, and the roller moving mechanism 317 is connected to drive the movable roller 316 to move relative to the fixed roller 313.

[0059] When the movable roller 316 approaches the fixed roller 313, the movable roller 316 is pressed against the fixed roller 313, and when the movable roller 316 moves away from the fixed roller 313, the waste suction port 311a of the suction pipe 311 is exposed from between the fixed roller 313 and the movable roller 316.

[0060] The suction mechanism 31 is provided with a fixed roller 313 and a movable roller 316 which are matched with each other in front of the suction port 311a of the suction pipe 311. When the excess thread is sucked out of the thread taking clamp 321, the roller moving mechanism 317 first drives the movable roller 316 away from the fixed roller 313 to expose the suction port 311a of the suction pipe 311, and then the suction pipe 311 starts to suck the excess thread sent by the thread pushing rod 323 to the space between the movable roller 316 and the fixed roller 313. Then the roller moving mechanism 317 drives the movable roller 316 to approach the fixed roller 313 to press and clamp the excess thread together with the fixed roller 313. Then the suction pipe 311 stops sucking, and finally the roller rotating mechanism 314 drives the fixed roller 313 to rotate to completely remove the excess thread on the bobbin 50 and send it into the suction pipe 311.

[0061] The suction pipe 311 further comprises a suction port 311b and an outlet port 311c, and the suction mechanism 31 further comprises a suction assembly (not shown in the figure) connected to the suction port 311b of the suction pipe 311. The suction pipe 311 is arranged obliquely, the suction port 311a is located at the oblique upper end of the suction pipe 311, the outlet port 311c is located at the oblique lower end of the suction pipe 311, and the suction port 311b is located on the side of the suction pipe 311, so that the excess thread sent into the suction pipe 311 by the fixed roller and the movable roller can be finally discharged from the outlet port 311c under the action of its own gravity.

[0062] The suction assembly can be, but is not limited to, a negative pressure device, a vacuum device or an air pump device, etc.

[0063] The suction mechanism 31 further comprises an excess thread collecting bag (not shown in the figure) connected to the outlet port 311c of the suction pipe 311. Preferably, the excess thread collecting bag and the outlet port 311c of the suction pipe 311 are connected in a detachable structure to facilitate taking out the excess thread in the excess thread collecting bag or replacing the excess thread collecting bag.

[0064] The suction mechanism 31 further comprises a fixed transmission gear 318 and a movable transmission gear 319. The fixed transmission gear 318 is coaxially connected with the rotating shaft of the fixed roller 313, and the movable transmission gear 319 is coaxially connected with the rotating shaft of the movable roller 316. When the movable roller 316 approaches the fixed roller 313, the movable transmission gear 319 engages with the fixed transmission gear 318, and when the movable roller 316 moves away from the fixed roller 313, the movable transmission gear 319 is separated from the fixed transmission gear 318.

[0065] When the movable roller 316 is close to the fixed roller 313, the transmission between the movable roller 316 and the fixed roller 313 is realized through the engagement between the fixed transmission gear 318 and the movable transmission gear 319, so that when the roller rotating mechanism 314 drives the fixed roller 313 to rotate, the rotation of the fixed roller 313 can be transmitted to the movable roller 316 through the fixed transmission gear 318 and the movable transmission gear 319, realizing the synchronous rotation between the fixed roller 313 and the movable roller 316, avoiding the relative friction caused by the different rotation steps.

[0066] The roller rotating mechanism 314 includes a fixed support 3141, a driving motor 3142, a transmission belt 3143, a first transmission wheel 3144 and a second transmission wheel 3145 arranged on the fixed support 3141, the output shaft of the driving motor 3142 is parallel to the rotating shaft of the fixed roller 313, the first transmission wheel 3144 is coaxially connected with the output shaft of the driving motor 3142, the second transmission wheel 3145 is coaxially connected with the rotating shaft of the fixed roller 313, and the transmission belt 3143 is sleeved on the first transmission wheel 3144 and the second transmission wheel 3145.

[0067] When the driving motor 3142 is started, the rotation output by the driving motor 3142 passes through the first transmission wheel 3144, the transmission belt 3143 and the second transmission wheel 3145 in turn, and finally drives the fixed roller 313 to rotate.

[0068] The roller moving mechanism 317 includes a fixed arm 3171, a first driving cylinder 3172, a first movable arm 3173 and a second movable arm 3174, the fixed arm 3171 is fixedly connected below the fixed support 3141, the first driving cylinder 3172 is rotatably connected to one end of the fixed arm 3171, one end of the first movable arm 3173 is fixedly connected to the middle of the second movable arm 3174, the other end of the first movable arm 3173 is rotatably connected to the output end of the first driving cylinder 3172, one end of the second movable arm 3174 is rotatably connected with the other end of the fixed arm 3171, and the other end is rotatably connected with the rotating shaft of the movable roller 316.

[0069] When the output end of the first driving cylinder 3172 extends, the first driving cylinder 3172 drives the end of the first movable arm 3173 connected thereto to swing upward relative to the fixed arm 3171, and when the first movable arm 3173 swings upward, the end of the second movable arm 3174 connected to the movable roller 316 also swings upward with the first movable arm 3173, thereby driving the movable roller 316 to swing upward and press against the fixed roller 313; when the output end of the first driving cylinder 3172 retracts, the first driving cylinder 3172 drives the end of the first movable arm 3173 connected thereto to swing downward relative to the fixed arm 3171, and when the first movable arm 3173 swings downward, the end of the second movable arm 3174 connected to the movable roller 316 also swings downward with the first movable arm 3173, thereby driving the movable roller 316 to swing downward and separate from the fixed roller 313.

[0070] The fixed arm 3171 of the roller moving mechanism 317 is connected to a fixed support 3141 below the roller rotating mechanism 314, so that the movable roller 316 is located below the fixed roller 313.

[0071] Embodiment Three

[0072] As shown in Figure 5 A full shuttle automatic shuttle changing and winding machine, comprising a shuttle winding device 10, a shuttle changing device 20 and the shuttle surplus thread removing device 30 of embodiment one or embodiment two, the shuttle changing device 20 and the shuttle surplus thread removing device 30 are both arranged beside the shuttle winding device 10.

[0073] The shuttle changing device 20 is used to change the shuttle 50 on the shuttle winding device 10.

[0074] The shuttle surplus thread removing device 30 is used to remove the surplus thread in the shuttle 50 on the shuttle winding device 10.

[0075] The shuttle winding device 10 is used to wind new bottom thread on the shuttle 50.

[0076] The full-shuttle automatic shuttle changing and winding machine is arranged beside the bobbin 50 rotating device (not shown in the figure) of the sewing machine, the bobbin 50 rotating device is matched with the top thread on the machine head needle through the bottom thread in the bobbin 50 to jointly complete the sewing of the fabric; the shuttle changing device 20 is located between the shuttle winding device 10 and the bobbin 50 rotating device to replace the bobbin 50 between the shuttle winding device 10 and the bobbin 50 rotating device, that is, the shuttle changing device 20 takes out the bobbin 50 on the bobbin 50 rotating device which has completed the sewing of the fabric to replace the new bottom thread wound on the shuttle winding device 10, and takes out the bobbin 50 on the shuttle winding device 10 which has completed the winding to replace the bobbin 50 on the bobbin 50 rotating device to perform the sewing of the fabric.

[0077] Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the embodiments of the present application, but not to limit them. Although the embodiments of the present application have been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the embodiments of the present application can still be modified or replaced by equivalents, and these modifications or replacements cannot make the modified technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A bobbin thread removal device, characterized in that, It includes a suction mechanism and a wire-taking mechanism, with the wire-taking mechanism located next to the suction mechanism. The suction mechanism includes a suction pipe, and the suction pipe includes a waste suction port; The thread taking mechanism includes a thread taking clamp, a thread taking drive assembly, a thread picking lever, and a thread picking drive assembly. The thread taking drive assembly drives the thread taking clamp to move relative to the bobbin. When the thread taking clamp moves closer to the bobbin, it extends into the winding groove of the bobbin. The thread picking lever is located on the side of the thread taking clamp away from the suction mechanism. The thread picking drive assembly drives the thread picking lever to move relative to the suction mechanism. When the thread picking lever moves closer to the suction mechanism, it can abut against the excess thread taken out by the thread taking clamp and send the excess thread into the waste suction port of the suction pipe.

2. The bobbin thread removal device according to claim 1, characterized in that, The wire-retrieving clamp includes a fixed clamp body, a movable clamp body, and a wire-clamping driver. The fixed clamp body includes a fixed clamp head with a side slot extending along the axial direction. The movable clamp body includes a movable clamp head disposed within the side slot and movable along the axial direction of the fixed clamp head to cooperate with the fixed clamp head to clamp or release any excess wire located within the side slot. The wire-clamping driver is disposed on the fixed clamp body and connected to the movable clamp body to drive the movable clamp body to move along the axial direction of the fixed clamp head.

3. The bobbin thread removal device according to claim 2, characterized in that, The fixed clamp further includes a first connecting part and a first limiting part, the first connecting part, the first limiting part and the fixed clamp are connected sequentially along the axial direction, the first connecting part is connected to the wire taking drive assembly, and the first limiting part is provided with a first limiting groove extending along the axial direction; the movable clamp further includes a second connecting part and a second limiting part, the second connecting part is connected to the wire clamping driver, and the second limiting part is provided with a first limiting block embedded in the first limiting groove; the wire clamping driver is disposed on the first connecting part of the fixed clamp.

4. The bobbin thread removal device according to claim 3, characterized in that, The fixed clamp is provided with a second limiting groove extending along the axial direction, and the movable clamp is provided with a second limiting block embedded in the second limiting groove.

5. The bobbin thread removal device according to claim 4, characterized in that, The first limiting groove has a first limiting direction, the second limiting groove has a second limiting direction, and the first limiting direction is perpendicular to the second limiting direction.

6. The bobbin thread removal device according to claim 1, characterized in that, The thread taking mechanism further includes a rotating fixed base, and the middle part of the thread taking rod is rotatably disposed on the rotating fixed base; the end of the thread taking rod away from the bobbin is rotatably connected to the thread taking drive assembly, and the end close to the bobbin is provided with a take-up head; the side of the take-up head facing the suction mechanism is provided with a thread taking arc surface perpendicular to the excess thread.

7. The bobbin thread removal device according to claim 6, characterized in that, The wire-taking drive assembly is mounted on the rotating fixed base.

8. The bobbin thread removal device according to claim 1, characterized in that, The suction pipe also includes an air intake port and a waste outlet. The suction mechanism also includes a suction assembly connected to the air intake port of the suction pipe. The suction pipe is inclined, with the waste intake port located at the inclined upper end of the suction pipe, the waste outlet located at the inclined lower end of the suction pipe, and the air intake port located on the side of the suction pipe.

9. The bobbin thread removal device according to claim 1, characterized in that, The suction mechanism further includes: A fixed roller and a roller rotation mechanism are provided. The fixed roller is located in front of the waste inlet of the suction pipe, and the roller rotation mechanism is connected to drive the fixed roller to rotate. The movable roller and the roller moving mechanism are provided. The movable roller is located in front of the waste inlet of the suction pipe and is positioned opposite to the fixed roller. The roller moving mechanism is connected to drive the movable roller to move relative to the fixed roller. When the movable roller approaches the fixed roller, the movable roller presses against the fixed roller. When the movable roller moves away from the fixed roller, the exhaust port of the suction pipe protrudes between the fixed roller and the movable roller.

10. A fully automatic shuttle-changing and winding machine, characterized in that, The device includes a bobbin winding device, a bobbin changing device, and a bobbin excess thread removal device as described in any one of claims 1-9, wherein the bobbin changing device and the bobbin excess thread removal device are both disposed next to the bobbin winding device. The bobbin replacement device is used to replace the bobbin on the bobbin winding device; The bobbin thread removal device is used to remove excess thread from the bobbin on the bobbin winding device. The bobbin winding device is used to wind a new bobbin thread onto the bobbin.

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