Shuttle peg winding module

Abstract

The utility model discloses a shuttle peg winding module which comprises a winding shaft, a shuttle taking device, a thread clamping device, a winding rotating mechanism, a thread clamping rotating mechanism and a thread clamping rotating mechanism. The winding rotating mechanism is used for driving the winding shaft and the shuttle taking device to rotate synchronously and is connected with the winding shaft and the shuttle taking device; the shuttle taking moving mechanism is used for driving the shuttle taking device to move back and forth along the winding shaft and is connected with the shuttle taking device; and the thread clamping and rotating mechanism is used for driving the thread clamping device to rotate relative to the shuttle taking device and is connected with the thread clamping device. The shuttle peg winding module can prevent the bottom thread from leaving thread ends outside the shuttle peg.

Description

Technical Field

[0001] The utility model relates to the technology of industrial sewing machines, in particular to a bobbin winding module. Background Art

[0002] Generally, a rotary hook device is arranged under the needle plate of an existing sewing machine. A bobbin is arranged in the rotary hook device, and a bobbin thread is wound around the bobbin to cooperate with the thread on the needle of the machine head to jointly complete the sewing of the fabric.

[0003] In order to realize the automatic winding and bobbin changing function of the sewing machine, a Chinese patent with the application number CN202111082466.7 discloses an automatic bobbin winding device, which includes a winding module. The winding module includes a winding shaft, a bobbin picker and a gripper that are coaxially arranged from the inside to the outside and can rotate synchronously. The winding shaft is used to install a bobbin case and drive the bobbin case to rotate together; the gripper is used to grip the bobbin thread embedded from its front; the bobbin picker can move along the winding shaft and is used to grab the bobbin to take the bobbin out of the bobbin case to the front of the gripper, and then drive the bobbin to rotate and wind the thread. The gripper includes an annular bracket and a thread clamping spring piece. The annular bracket surrounds the bobbin picker, and a thread clamping opening is arranged on the outside. The thread clamping spring piece is arranged in the thread clamping opening. When the bobbin thread is embedded in the thread clamping opening of the annular bracket, the thread clamping spring piece in the thread clamping opening uses its own elastic force to clamp the bobbin thread in the thread clamping opening, and when the bobbin is pushed back into the bobbin case by the bobbin picker after winding, the bobbin thread will automatically fall off from the thread clamping spring piece under the pulling force of the bobbin picker.

[0004] In the above automatic bobbin winding device, the bobbin thread in the gripper finally automatically falls off from the thread clamping spring piece under the pulling of the bobbin picker when the bobbin picker pushes the bobbin back into the bobbin case. In this way, a relatively long thread end will be left outside the bobbin, which will affect the sewing effect. Summary of the Utility Model

[0005] In order to solve the above deficiencies of the prior art, the utility model provides a bobbin winding module, which can avoid leaving a thread end outside the bobbin.

[0006] The technical problems to be solved by the utility model are realized through the following technical solutions:

[0007] A bobbin winding module includes:

[0008] A winding shaft, which is used to install a bobbin case and drive the bobbin case to rotate, and a bobbin installation structure is arranged at its front end;

[0009] A bobbin take-out device, which is used to take out the bobbin from the bobbin case and drive the bobbin to rotate, is disposed around the periphery of the winding shaft and can move back and forth along the winding shaft to approach or move away from the bobbin mounting structure;

[0010] A thread clamping device, which is used to clamp the bobbin thread and drive the bobbin thread to rotate around the winding shaft, is disposed around the periphery of the bobbin take-out device;

[0011] A winding rotation mechanism, which is used to drive the winding shaft and the bobbin take-out device to rotate synchronously, is connected to the winding shaft and the bobbin take-out device;

[0012] A bobbin take-out moving mechanism, which is used to drive the bobbin take-out device to move back and forth along the winding shaft, is connected to the bobbin take-out device;

[0013] A thread clamping rotation mechanism, which is used to drive the thread clamping device to rotate relative to the bobbin take-out device, is connected to the thread clamping device.

[0014] Furthermore, the thread clamping rotation mechanism includes a thread clamping motor, a first driving wheel, a first driven wheel and a first transmission belt. The first driving wheel is coaxially arranged with the output shaft of the thread clamping motor, the first driven wheel is coaxially arranged with the thread clamping device, and the first transmission belt is sleeved and connected between the first driving wheel and the first driven wheel.

[0015] Furthermore, the bobbin take-out device includes a first rotating sleeve, a second rotating sleeve and an annular electromagnet. The first rotating sleeve is coaxially sleeved around the periphery of the winding shaft, the second rotating sleeve is coaxially sleeved around the periphery of the first rotating sleeve. A first limiting block protrudes on the periphery of the winding shaft. The first rotating sleeve and the second rotating sleeve are respectively provided with a strip-shaped limiting hole and a fixing hole for the first limiting block to be inserted. The strip-shaped limiting hole extends along the axial direction of the winding shaft; the annular electromagnet is arranged at the front end of the first rotating sleeve. The annular electromagnet extends out of the second rotating sleeve when moving close to the bobbin mounting structure, and retracts into the second rotating sleeve when moving away from the bobbin mounting structure.

[0016] Furthermore, the winding rotation mechanism is connected to the second rotating sleeve to drive the winding shaft and the bobbin take-out device to rotate synchronously.

[0017] Furthermore, the bobbin take-out moving mechanism is connected to the first rotating sleeve to drive the bobbin take-out device to move back and forth along the winding shaft.

[0018] Further, the thread clamping device includes an annular bracket, a thread clamping seat, and a thread clamping spring piece. The annular bracket is disposed around the periphery of the shuttle taking device. A thread clamping port is provided on the outer side of the thread clamping seat, and the thread clamping seat protrudes from the front end of the annular bracket, such that the thread clamping port is aligned with the bobbin core during winding; the thread clamping spring piece is disposed within the thread clamping port of the thread clamping seat.

[0019] Further, the thread clamping port extends along the circumferential direction of the annular bracket on the thread clamping seat.

[0020] Further, the thread clamping seat includes a base, a baffle, and a connecting portion. The baffle and the base are disposed opposite to each other front and back. The thread clamping port is located between the base and the baffle. The base and the baffle are connected to each other on the side close to the shuttle taking device through the connecting portion; the base is disposed on the annular bracket.

[0021] Further, in the radial direction of the annular bracket, the width of the baffle is smaller than the width of the base, and in the circumferential direction of the annular bracket, the length of the baffle is smaller than the length of the base; on the side close to the shuttle taking device, the base, the baffle, and the connecting portion are flush with each other.

[0022] Further, the shuttle mounting structure includes an annular limiting groove and a second limiting block. The annular limiting groove is disposed around the periphery of the winding shaft, and the second limiting block protrudes on the periphery of the winding shaft.

[0023] The present utility model has the following beneficial effects: In the bobbin core winding module of the present utility model, the winding rotation mechanism and the thread clamping rotation mechanism are respectively used to drive the shuttle taking device and the thread clamping device to rotate, such that the shuttle taking device and the thread clamping device can rotate out of sync. In this way, during winding, through the relative rotation between the shuttle taking device and the thread clamping device, all the bottom thread ends in the thread clamping device can be wound into the bobbin core, so as to avoid leaving thread ends outside the bobbin core. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a top view structural schematic diagram of the bobbin core winding module provided by the present utility model.

[0025] Figure 2 It is a front side structural schematic diagram of the bobbin core winding module provided by the present utility model.

[0026] Figure 3 It is a rear side structural schematic diagram of the bobbin core winding module provided by the present utility model.

[0027] Figure 4 It is an exploded structural schematic diagram of the shuttle taking device in the bobbin core winding module provided by the present utility model.

[0028] Figure 5Schematic diagram of the structure of the shuttle installation structure and the shuttle case in the bobbin winding module provided by the present utility model.

[0029] Figure 6 Exploded structure diagram of the thread clamp in the bobbin winding module provided by the present utility model.

[0030] Figure 7 Side view structure diagram of the thread clamping base in the bobbin winding module provided by the present utility model. Detailed implementation manners

[0031] The present utility model will be described in detail below with reference to the drawings and embodiments. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present utility model, and should not be construed as a limitation to the present utility model.

[0032] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0033] In addition, the terms "first", "second", "third" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first", "second", "third" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "a plurality" is two or more unless otherwise specifically defined.

[0034] In the present utility model, unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", "fixation", "setting", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and may also be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0035] Embodiment 1

[0036] As Figure 1As shown in the figure, a bobbin winding module includes an installation vertical plate 10, and a winding shaft 20, a bobbin picker 30, a thread clamping device 40, a winding rotation mechanism 50, a bobbin picker moving mechanism 60, and a thread clamping rotation mechanism 70 which are installed on the installation vertical plate 10.

[0037] The winding shaft 20 is used for installing a bobbin case a and driving the bobbin case a to rotate, and a bobbin installation structure is provided at its front end.

[0038] The bobbin picker 30 is used for taking out a bobbin core b from the bobbin case a and driving the bobbin core b to rotate, is disposed around the periphery of the winding shaft 20, and can move back and forth along the winding shaft 20 to approach or move away from the bobbin installation structure.

[0039] The thread clamping device 40 is used for clamping a bobbin thread c and driving the bobbin thread c to rotate around the winding shaft 20, and is disposed around the periphery of the bobbin picker 30.

[0040] The winding rotation mechanism 50 is used for driving the winding shaft 20 and the bobbin picker 30 to rotate synchronously, and is connected to the winding shaft 20 and the bobbin picker 30.

[0041] The bobbin picker moving mechanism 60 is used for driving the bobbin picker 30 to move back and forth along the winding shaft 20, and is connected to the bobbin picker 30.

[0042] The thread clamping rotation mechanism 70 is used for driving the thread clamping device 40 to rotate relative to the bobbin picker 30, and is connected to the thread clamping device 40.

[0043] In the bobbin winding module of the present utility model, the winding rotation mechanism 50 and the thread clamping rotation mechanism 70 are respectively used to drive the bobbin picker 30 and the thread clamping device 40 to rotate, so that the bobbin picker 30 and the thread clamping device 40 can rotate out of sync. In this way, during winding, the end of the bobbin thread c in the thread clamping device 40 can be completely wound into the bobbin core b through the relative rotation between the bobbin picker 30 and the thread clamping device 40, so as to avoid leaving a thread end of the bobbin thread c outside the bobbin core b.

[0044] In this embodiment, the winding shaft 20, the bobbin picker 30, the thread clamping device 40, and the thread clamping rotation mechanism 70 are located on the front side of the installation vertical plate 10, the bobbin picker moving mechanism 60 and the winding rotation mechanism 50 are located on the rear side of the installation vertical plate 10. After the winding shaft 20 and the bobbin picker 30 pass through the installation vertical plate 10 from the front side, they are respectively connected to the bobbin picker moving mechanism 60 and the winding rotation mechanism 50 located on the rear side.

[0045] When the bobbin winding module is working, first, the bobbin taking and moving mechanism 60 drives the bobbin taker 30 to move forward along the winding shaft 20, so that the bobbin taker 30 approaches the bobbin case a on the bobbin mounting structure. Then, the bobbin taker 30 grabs the bobbin b in the bobbin case a. Next, the bobbin taking and moving mechanism 60 drives the bobbin taker 30 to move backward along the winding shaft 20, so that the bobbin taker 30 moves away from the bobbin case a on the bobbin mounting structure, and further takes out the grabbed bobbin b from the bobbin case a. Then, the winding rotation mechanism 50, the bobbin taking and moving mechanism 60, and the thread clamping rotation mechanism 70 cooperate to drive the bobbin taker 30 and the thread clamp 40 to rotate respectively, so as to wind the bobbin thread c into the bobbin b. Next, the bobbin taking and moving mechanism 60 drives the bobbin taker 30 to move forward along the winding shaft 20, so that the bobbin taker 30 approaches the bobbin case a on the bobbin mounting structure, and further pushes the wound bobbin b back into the bobbin case a. Then, the bobbin taker 30 releases the bobbin b in the bobbin case a. Finally, the bobbin taking and moving mechanism 60 drives the bobbin taker 30 to move backward along the winding shaft 20, so that the bobbin taker 30 moves away from the bobbin case a on the bobbin mounting structure, and further completes the reset.

[0046] Among them, the winding process is divided into three stages: in the first stage, the winding rotation mechanism 50, the bobbin taking and moving mechanism 60, and the thread clamping rotation mechanism 70 drive the bobbin taker 30 and the thread clamp 40 to rotate respectively, and first wind the first length of the bobbin thread c into the bobbin b. At this time, the rotations of the bobbin taker 30 and the thread clamp 40 are synchronous, and their angular velocities are the same. In the second stage, the winding rotation mechanism 50 pauses driving the bobbin taker 30 to rotate, and the thread clamping rotation mechanism 70 drives the thread clamp 40 to rotate alone, so as to wind all the end of the bobbin thread c in the thread clamp 40 into the bobbin b. In the third stage, the thread clamping rotation mechanism 70 pauses driving the thread clamp 40 to rotate, and the winding rotation mechanism 50 drives the bobbin taker 30 to rotate alone, so as to wind the second length of the bobbin thread c into the bobbin b.

[0047] As Figure 2 shown, the thread clamping rotation mechanism 70 includes a thread clamping motor 71, a first driving wheel 72, a first driven wheel 73, and a first transmission belt 74. The first driving wheel 72 is coaxially arranged with the output shaft of the thread clamping motor 71, the first driven wheel 73 is coaxially arranged with the thread clamp 40, and the first transmission belt 74 is sleeved and connected between the first driving wheel 72 and the first driven wheel 73.

[0048] As Figure 4As described above, the shuttle picker 30 includes a first rotating sleeve 31, a second rotating sleeve 32, and an annular electromagnet 33. The first rotating sleeve 31 is coaxially sleeved around the periphery of the winding shaft 20. The second rotating sleeve 32 is coaxially sleeved around the periphery of the first rotating sleeve 31. A first limiting block 21 protrudes from the periphery of the winding shaft 20. The first rotating sleeve 31 and the second rotating sleeve 32 are respectively provided with a strip-shaped limiting hole 310 and a fixing hole 320 for the first limiting block 21 to be inserted into. The strip-shaped limiting hole 310 extends along the axial direction of the winding shaft 20. The annular electromagnet 33 is arranged at the front end of the first rotating sleeve 31 (the end close to the shuttle mounting structure). When the annular electromagnet 33 moves close to the shuttle mounting structure, it extends out of the second rotating sleeve 32. When the annular electromagnet 33 moves away from the shuttle mounting structure, it retracts into the second rotating sleeve 32.

[0049] When the second rotating sleeve 32 rotates, it can drive the winding shaft 20 to rotate synchronously through the mutually inserted fixing hole 320 and the first limiting block 21. When the winding shaft 20 rotates, it can drive the first rotating sleeve 31 to rotate synchronously through the mutually inserted strip-shaped limiting hole 310 and the first limiting block 21, so as to finally realize the synchronous rotation among the winding shaft 20, the first rotating sleeve 31, and the second rotating sleeve 32. And the strip-shaped limiting hole 310 extends along the axial direction of the winding shaft 20, enabling the first rotating sleeve 31 to drive the shuttle picker 30 at its front end to move back and forth along the winding shaft 20.

[0050] As Figure 3 shown, the winding rotation mechanism 50 is connected to the second rotating sleeve 32 to drive the winding shaft 20 and the shuttle picker 30 to rotate synchronously. The winding rotation mechanism 50 includes a winding motor 51, a second driving wheel 52, a second driven wheel 53, and a second transmission belt 54. The second driving wheel 52 is coaxially arranged with the output shaft of the winding motor 51. The second driven wheel 53 is coaxially arranged with the second rotating sleeve 32. The second transmission belt 54 is sleeved and connected between the second driving wheel 52 and the second driven wheel 53.

[0051] The shuttle picker moving mechanism 60 is connected to the first rotating sleeve 31 to drive the shuttle picker 30 to move back and forth along the winding shaft 20. The shuttle picker moving mechanism 60 includes a first shuttle picker cylinder 61, a second shuttle picker cylinder 62, and a moving block 63. The first shuttle picker cylinder 61 and the second shuttle picker cylinder 62 are arranged on the mounting vertical plate 10 and are respectively located on opposite sides of the shuttle picker 30. The middle of the moving block 63 is rotatably connected to the rear end of the first rotating sleeve 31, and its opposite sides are respectively connected to the telescopic shafts of the first shuttle picker cylinder 61 and the second shuttle picker cylinder 62.

[0052] As Figure 5 shown, the shuttle mounting structure includes an annular limiting groove 22 and a second limiting block 23. The annular limiting groove 22 is disposed around the periphery of the winding shaft 20, and the second limiting block 23 protrudes on the periphery of the winding shaft 20.

[0053] The annular limiting groove 22 cooperates with the limiting convex ring a1 inside the shuttle shell a to limit the axial movement of the shuttle shell a relative to the winding shaft 20; the second limiting block 23 cooperates with the limiting notch a2 inside the shuttle shell a to limit the circumferential rotation of the shuttle shell a relative to the winding shaft 20.

[0054] Embodiment 2

[0055] As an optimized solution of Embodiment 1, in this embodiment, as Figure 6 shown, the thread clamping device 40 includes an annular bracket 41, a thread clamping seat 42 and a thread clamping spring piece 43. The annular bracket 41 is disposed around the periphery of the shuttle taking device 30. A thread clamping port 420 is provided on the outer side (the side away from the winding shaft 20) of the thread clamping seat 42, and the thread clamping seat 42 protrudes from the front end of the annular bracket 41, so that the thread clamping port 420 is aligned with the bobbin core b during winding; the thread clamping spring piece 43 is disposed in the thread clamping port 420 of the thread clamping seat 42.

[0056] In the bobbin winding module of the present utility model, by protruding the thread clamping seat 42 from the front end of the annular bracket 41, the thread clamping port 420 on the thread clamping seat 42 is aligned with the bobbin core b on the shuttle taking device 30 during winding, so as to avoid the bottom thread c between the thread clamping device 40 and the bobbin core b from contacting the shuttle taking device 30, and further prevent the bottom thread c between the thread clamping device 40 and the bobbin core b from rubbing against the shuttle taking device 30 when the thread clamping device 40 and the shuttle taking device 30 rotate relative to each other.

[0057] Preferably, the thread clamping port 420 extends circumferentially along the annular bracket 41 on the thread clamping seat 42 to form a U-shaped port or a C-shaped port.

[0058] Specifically, as Figure 7 shown, the thread clamping seat 42 includes a base 421, a baffle 422 and a connecting portion 423. The baffle 422 and the base 421 are disposed opposite to each other front and back. The thread clamping port 420 is located between the base 421 and the baffle 422. The base 421 and the baffle 422 are connected by the connecting portion 423 on the side close to the shuttle taking device 30; the base 421 is disposed on the annular bracket 41.

[0059] Preferably, in the radial direction of the annular bracket 41, the width of the baffle 422 is smaller than the width of the base 421, and in the circumferential direction of the annular bracket 41, the length of the baffle 422 is smaller than the length of the base 421; on the side close to the shuttle picker 30, the base 421, the baffle 422 and the connecting portion 423 are flush with each other.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the present invention rather than to limit them. Although the embodiments of the present invention have been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the embodiments of the present invention can still be modified or equivalently replaced, and these modifications or equivalent replacements cannot make the modified technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A bobbin winding module, characterized in that, Comprising: A bobbin spindle for mounting a bobbin case and driving the bobbin case to rotate, with a shuttle mounting structure provided at its front end; A shuttle picker for taking out a bobbin core from the bobbin case and driving the bobbin core to rotate, disposed around the periphery of the bobbin spindle, and capable of moving back and forth along the bobbin spindle to approach or move away from the shuttle mounting structure; A thread clamping device for clamping the bobbin thread and driving the bobbin thread to rotate around the bobbin spindle, disposed around the periphery of the shuttle picker; A winding rotation mechanism for driving the bobbin spindle and the shuttle picker to rotate synchronously, connected to the bobbin spindle and the shuttle picker; A shuttle picking movement mechanism for driving the shuttle picker to move back and forth along the bobbin spindle, connected to the shuttle picker; A thread clamping rotation mechanism for driving the thread clamping device to rotate relative to the shuttle picker, connected to the thread clamping device.

2. The bobbin winding module according to claim 1, wherein, The thread clamping rotation mechanism includes a thread clamping motor, a first driving pulley, a first driven pulley and a first transmission belt. The first driving pulley is coaxially arranged with the output shaft of the thread clamping motor, the first driven pulley is coaxially arranged with the thread clamping device, and the first transmission belt is sleeved and connected between the first driving pulley and the first driven pulley.

3. The bobbin winding module according to claim 1, wherein The shuttle picker includes a first rotating sleeve, a second rotating sleeve and an annular electromagnet. The first rotating sleeve is coaxially sleeved around the periphery of the bobbin spindle, the second rotating sleeve is coaxially sleeved around the periphery of the first rotating sleeve. A first limiting block protrudes on the periphery of the bobbin spindle. The first rotating sleeve and the second rotating sleeve are respectively provided with a strip-shaped limiting hole and a fixing hole for the first limiting block to be inserted. The strip-shaped limiting hole extends along the axial direction of the bobbin spindle; the annular electromagnet is arranged at the front end of the first rotating sleeve. The annular electromagnet extends out of the second rotating sleeve when moving close to the shuttle mounting structure, and retracts into the second rotating sleeve when moving away from the shuttle mounting structure.

4. The bobbin winding module according to claim 3, characterized in that, The winding rotation mechanism is connected to the second rotating sleeve to drive the bobbin spindle and the shuttle picker to rotate synchronously.

5. The bobbin winding module according to claim 3, characterized in that, The shuttle picking movement mechanism is connected to the first rotating sleeve to drive the shuttle picker to move back and forth along the bobbin spindle.

6. The bobbin winding module according to claim 1, characterized in that, The thread clamping device includes an annular bracket, a thread clamping seat and a thread clamping spring piece. The annular bracket is disposed around the periphery of the shuttle picker. A thread clamping port is provided on the outer side of the thread clamping seat, and the thread clamping seat protrudes from the front end of the annular bracket, so that the thread clamping port is aligned with the bobbin core during winding; the thread clamping spring piece is arranged in the thread clamping port of the thread clamping seat.

7. The bobbin winding module according to claim 6, wherein The thread clamping port extends along the circumferential direction of the annular bracket on the thread clamping seat.

8. The bobbin winding module according to claim 6, characterized in that, The thread clamping seat includes a base, a baffle and a connecting portion. The baffle and the base are arranged opposite to each other front and back. The thread clamping port is located between the base and the baffle. The base and the baffle are connected by the connecting portion on the side close to the shuttle picker; the base is arranged on the annular bracket.

9. The bobbin winding module according to claim 8, wherein, In the radial direction of the annular bracket, the width of the baffle is smaller than the width of the base, and in the circumferential direction of the annular bracket, the length of the baffle is smaller than the length of the base; on the side close to the shuttle picker, the base, the baffle and the connecting portion are flush.

10. The bobbin winding module according to claim 1, characterized in that, The shuttle installation structure includes an annular limiting groove and a second limiting block. The annular limiting groove is disposed around the periphery of the winding shaft, and the second limiting block protrudes on the periphery of the winding shaft.

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