CN112210908B

CN112210908B - Shuttle core group movement mechanism

Info

Publication number: CN112210908B
Application number: CN201910630858.9A
Authority: CN
Inventors: 陈旭辉
Original assignee: Cheesiang Sewing Machine SH Co ltd; Chee Siang Industrial Co Ltd
Current assignee: Cheesiang Sewing Machine SH Co ltd; Chee Siang Industrial Co Ltd
Priority date: 2019-07-12
Filing date: 2019-07-12
Publication date: 2022-11-01
Anticipated expiration: 2039-07-12
Also published as: CN112210908A

Abstract

The invention relates to a bobbin group movement mechanism, which is matched with a bobbin and a bobbin case for use and is provided with three movement components, wherein each movement component is provided with a transmission piece, two transmission pieces are coaxially arranged on a movement axis and can respectively drive the bobbin and the bobbin case to rotate along the movement axis, the last transmission piece can move along the axis direction of the movement axis and drive the bobbin case to be far away from the bobbin, so that the bobbin and the bobbin case are separated from each other, and therefore, after the bobbin case and the bobbin case are removed from a rotary shuttle through sewing operation, the three movement components can automatically separate the bobbin case from the bobbin and wind a bottom thread on the bobbin.

Description

Shuttle core group movement mechanism

Technical Field

The invention relates to a shuttle peg group movement mechanism for winding a bottom thread, in particular to a shuttle peg group movement mechanism which can individually rotate a shuttle peg and a shuttle shell and can separate the shuttle peg and the shuttle shell from each other.

Background

In a sewing machine using the sewing principle, a full-rotation rotary hook or a half-rotation shuttle is used to wind a bobbin around which a bobbin thread is wound, and most sewing machines using the sewing principle have a bobbin case that can accommodate the bobbin.

However, in order to increase the rotation speed of the sewing machine, the bobbin has not enough capacity to accommodate the bobbin thread, and the length of the bobbin thread is relatively limited, so that the bobbin must be frequently replaced to prevent the bobbin thread from being exhausted, and when the bobbin thread is replaced, not only the sewing machine must be stopped, but also the bobbin thread must be manually replaced by an operator, and the productivity cannot be relatively improved.

In order to overcome the above disadvantages, an automatic bobbin exchanging apparatus is known in the sewing machine industry, and when detecting that the bobbin thread wound around the bobbin is about to be consumed, the automatic bobbin exchanging apparatus simultaneously removes the bobbin case and the bobbin from the rotary hook so that the bobbin case and the bobbin are both separated from the rotary hook, and then simultaneously installs another set of bobbin case and the bobbin full of the bobbin thread on the rotary hook so as to achieve the effect of automatically exchanging the bobbin.

However, after the bobbin casing and the bobbin which is about to run out of the bobbin thread are simultaneously removed from the rotating hook by the automatic bobbin exchanging device, the bobbin which is about to run out of the bobbin thread is still located inside the bobbin casing, so that an operator needs to spend time to manually separate the bobbin which is about to run out of the bobbin thread from the bobbin casing, and also needs to manually remove the bobbin thread which remains on the bobbin, and after the operator finishes removing the bobbin thread which remains on the bobbin, the operator needs to manually mount the bobbin on the reel to rewind the bobbin thread on the bobbin, thereby increasing the time of manual operation.

Disclosure of Invention

The invention aims to automatically remove the bottom thread wound on the shuttle peg to shorten the operation time of removing the shuttle peg, and relatively reduce the time for preparing the shuttle peg by an operator.

The main object of the present invention is to separate the bobbin from the bobbin case, and to allow the bobbin and the bobbin case to individually rotate, thereby assisting an operator in completing the operations of removing the remaining bobbin thread and winding the bobbin thread in a short time, and thus eliminating the manual operation of the operator.

To achieve the above object, the present invention provides a bobbin group movement mechanism capable of driving a bobbin and a bobbin case in an assembled state, comprising:

the first motion assembly is provided with a first transmission piece which coaxially rotates along a motion axis, and the shuttle peg can be driven by the first transmission piece to synchronously rotate;

the second motion component is provided with a second transmission piece which coaxially rotates along the motion axis, and the bobbin case can be driven by the second transmission piece to synchronously rotate; and

a third motion assembly having a third transmission member movable along an axis of the motion axis and capable of changing both the bobbin and the bobbin case from the assembled state to a separated state in which the bobbin is separated from the bobbin case.

The bobbin group moving mechanism, wherein: the third transmission piece is coaxially arranged on the motion axis, so that the third transmission piece can coaxially move along the motion axis, and the third transmission piece is movably connected to the first transmission piece or the second transmission piece.

The bobbin group moving mechanism, wherein: the first transmission piece and the second transmission piece are respectively movably sleeved at two ends of the third transmission piece, so that the third transmission piece can move relative to the first transmission piece and the second transmission piece.

The bobbin group moving mechanism, wherein: a synchronous component is arranged between one of the first transmission piece and the second transmission piece and the third transmission piece, and the synchronous component can enable one of the first transmission piece and the second transmission piece and the third transmission piece to simultaneously perform rotary motion or linear motion.

The bobbin group movement mechanism, wherein: the synchronous component is provided with a synchronous groove and a synchronous convex column, the synchronous groove forms one of the first transmission piece and the second transmission piece, and the synchronous convex column is formed on the third transmission piece and penetrates through the synchronous groove.

The bobbin group moving mechanism, wherein: the third motion assembly further has a reset acting element capable of forming a reset acting force acting on the third transmission element, so that the third transmission element enables the bobbin and the bobbin case to be in the assembled state through the reset acting force.

The bobbin group moving mechanism, wherein: one of the second transmission member and the third transmission member is connected to the bobbin case, a limiting component is arranged between the bobbin case and the transmission member connected to the bobbin case, and the limiting component can limit the bobbin case from moving or rotating relative to the transmission member connected to the bobbin case.

The bobbin group moving mechanism, wherein: the limiting component is provided with an annular groove formed in the transmission piece and a latch arranged on the shuttle shell, and the latch can be buckled into the annular groove to limit the shuttle shell from moving axially.

The bobbin group moving mechanism, wherein: the shuttle shell is provided with a shuttle shaft sleeved on the transmission member, the limiting component is provided with a positioning groove and a positioning convex column, one of the positioning groove and the positioning convex column is formed on the shuttle shaft, the other one of the positioning groove and the positioning convex column is formed on the transmission member, and the positioning convex column is arranged in the positioning groove in a penetrating mode to limit the shuttle shell to be incapable of rotating.

The bobbin group moving mechanism, wherein: the third transmission piece is assembled on the first motion assembly or the second motion assembly and can drive the whole first motion assembly or the whole second motion assembly to move.

The invention has the advantages that the invention has three transmission parts, wherein two transmission parts are coaxially arranged on a motion axis, one transmission part can rotate, so that the rotating transmission part can drive the shuttle peg to rotate by taking the motion axis as the axis, the other transmission part can drive the shuttle shell to rotate by taking the motion axis as the axis, and the last transmission part moves, so that the moving transmission part can drive the shuttle shell to linearly move along the motion axis.

Drawings

FIG. 1 is a perspective view of a first preferred embodiment of an automatic bobbin thread winding sewing machine;

FIG. 2 is an exploded view of the automatic bobbin thread winding sewing machine in a first preferred embodiment;

FIG. 3A is an exploded view of the set of mandrels;

FIG. 3B shows a schematic view of another embodiment of the bobbin core;

fig. 4 is an exploded view of the bobbin changing device of fig. 2;

FIG. 5 is an exploded view of the suture introduction device of FIG. 2;

FIG. 6 is an exploded view of the bobbin set movement mechanism of FIG. 5;

FIG. 7 is a cross-sectional view of the bobbin set movement mechanism;

FIG. 8 is a schematic view of the bobbin case being mounted to the third transmission member;

figure 9 is an exploded view of the bottom wire clamping mechanism of figure 5;

FIG. 10 is an exploded view of the wire trap release mechanism of FIG. 5;

FIG. 11 is an exploded view of the bobbin control mechanism of FIG. 5;

FIG. 12 is an exploded view of the bobbin set movement mechanism of FIG. 2;

fig. 13 is a schematic view of the bobbin being mounted to the first transmission member;

FIG. 14A is a schematic view of the respective bobbin sets assembled by the rotating shuttle and the bobbin set moving mechanism;

FIG. 14B is a schematic view of the movable frame moving toward the direction approaching the rotating shuttle;

FIG. 14C is a schematic view of the first gripper assembly being clamped to the first set of gripper elements;

FIG. 14D is a schematic view of the second gripper assembly being clamped to the second set of gripper elements;

FIG. 14E is a schematic view of the movable frame moving away from the rotating shuttle;

FIG. 14F is a schematic view of the movable frame rotating clockwise;

FIG. 14G is a schematic view of the movable frame being again close to the rotating shuttle;

FIG. 14H is a schematic view of the second gripper assembly releasing the second set of mandrels;

fig. 14I is a schematic view of the first jaw assembly positioned directly in front of the bobbin set movement mechanism;

FIG. 14J is a schematic view of the positioning post penetrating into the positioning groove;

FIG. 14K is a schematic view of the latch clip being clamped to the annular groove;

fig. 14L is a schematic view of the bobbin of the first bobbin group being connected to the first transmission member by the alignment mechanism; fig. 15A is a schematic view showing a state where both the bobbin case and the bobbin are separated;

FIG. 15B is a schematic view of the cutter in the cutting position;

FIG. 15C is a schematic view of another embodiment of a pumping mechanism;

FIG. 15D is a schematic view in partial cross-section of FIG. 15C;

fig. 16A is a schematic view of a bobbin thread being wound around a bobbin;

FIG. 16B is a schematic view of the bobbin thread control mechanism controlling the position of the bobbin thread;

figure 16C is a schematic view of the clamp assembly moved to a clamping position;

FIG. 16D is a schematic view of the clamp assembly clamping to the bobbin thread;

FIG. 16E is a schematic view of the gripper assembly moved to the first ready position;

FIG. 16F is a schematic view of the wire clamp release mechanism clamping to the bobbin thread;

FIG. 16G is a schematic view of the clamp assembly moving to the first guide position;

FIG. 16H is a schematic view of the blade severing the bobbin thread;

fig. 17A is a schematic view of the bobbin case and the bobbin in an assembled state;

FIG. 17B is a schematic view of the winding of a bobbin thread into a guide channel;

FIG. 17C is a schematic view of the gripper assembly moved to a second ready position;

FIG. 17D is the schematic view showing the first clamp driving medium contacting the roller

FIG. 17E is a schematic view of the clamp assembly moving to the second guide position;

fig. 17F is a schematic view of a wound bobbin thread introducing hole;

FIG. 18 is a schematic view of a bobbin set movement mechanism in a second preferred embodiment;

fig. 19 is a schematic view of a bobbin set moving mechanism in the third preferred embodiment.

Description of the reference numerals: 1-automatic winding bobbin thread sewing machine; 10-sewing machine body; 11-a base; 12-rotating shuttle; 13-a worktop board; 14-a fixing frame; 15-a wire clamp; 20-changing the bobbin device; 21-a bobbin group moving assembly; 211-a mobile drive source; 212-a transmission rod; 22-a movable frame; 221-a first connection end; 222-a second connection end; 223-a coupling; 23-a first jaw assembly; 231-a first jaw mount; 231 a-first pivot joint; 232-a first fixed jaw; 233-a first movable jaw; 233 a-a first clamp; 234 — a first jaw driver; 24-a second jaw assembly; 241-a second jaw mount; 242-a second fixed jaw; 243-a second movable jaw; 243 a-a second nip; 244-a second jaw driver; 25-a bobbin set rotating assembly; 251-a rotation drive source; 252-a drive train; 252 a-first transfer gear; 252 b-a second transmission gear; 30-a bobbin thread lead-in device; 31-bobbin set movement mechanism; 311-a first motion assembly; 3111-a first drive source; 3112-a first transmission; 3112 a-land; 3112 b-blade; 3112 c-a blade portion; 3112 d-connecting part; 3113-first linkage group; 3113 a-a first drive pulley; 3113 b-a first driven pulley; 3113 c-first belt; 312-a second motion assembly; 3121-a second drive source; 3122-a second transmission element; 3123-a second linkage group; 3123 a-a second drive pulley; 3123 b-a second driven pulley; 3123 c-a second belt; 313-a third motion assembly; 3131 — a third drive source; 3132 — a third transmission piece; 3132 a-a pressing block; 3133-a third linkage group; 3133 a-a linkage rack; 3133 b-a linkage gear; 3134-a reduction action member; 3134 a-a restoring force; 314-a synchronization component; 3141-synchronization grooves; 3142-synchronous convex column; 315-a stop assembly; 3151-anti-migration unit; 3151 a-ring groove; 3151 b-a latch clip; 3151 c-latch; 3152-anti-rotation unit; 3152 a-positioning studs; 3152 b-positioning grooves; 32-a bobbin thread clamping means; 321-a first moving assembly; 3211-a first moving jig driving source; 3212-a first clamp drive; 322-a second moving assembly; 3221-a second moving clamp drive source; 3222-a second clamp drive; 323-a clamp assembly; 3231-a movable clamp; 3231 a-grip groove; 3231 b-stop pin; 3232-fixing the clamp; 3232 a-clamp block; 3232 b-Pin hole; 3233-jig drive source; 324-avoidance unit; 3241-swing plate; 3242-assembling the plates; 3242 a-arc guide rails; 3243-roller; 3244-guide wheel; 3245-a holder; 3245 a-Retention force; 33-a wire clamping release mechanism; 331-a release lever; 3311-pivot joint; 3312-push portion; 3313-acting part; 3314-clamping space; 332-release the drive source; 34-a ground line control mechanism; 341-an adjustment member; 3411-a pivot shaft; 3412-an adjustment plate; 3412 a-through hole; 3413-connecting column; 342-adjusting the drive source; 40-a bobbin group movement mechanism; 41-a moving mechanism; 411 — a movable driving source; 412-a movable arm; 42-a wire cutting mechanism; 421-tangent drive source; 422-a cutter; 423-tangent transmission; 423 a-air blowing holes; 43-a suction mechanism; 431-suction port; 44-a registration mechanism; 441-a guide assembly; 4411-a magnet; 442-a positioning assembly; 4421-bumps; 4422-a locating slot; 50-a shuttle peg group; 501-a first shuttle peg group; 502-a second set of mandrels; 51-a bobbin; 511-spool piece; 511 a-a first spooling section; 511 b-a second crimping section; 511 c-shaft recess; 511 d-stop flange; 512-limiting plate; 512 a-limit groove; 513-a winding space; 514-penetrating the space; 52-bobbin case; 521-a housing; 522-shuttle shaft; 523-closed end; 524-open end; 525-a receiving space; 526-wire guides; 527-wire groove; 528-wire clip spring; 528 a-guide port; 529-hook arm; 529 a-line hole; 530-line blocking sheet; 530 a-spring arm; 60-bottom line; 61- -winding the bobbin thread; 62-supply source ground line; a-drawing the air flow; b-blowing out an air flow; c-cut off position; d1-first path; d2 — second path; d3 — a third path; d4-fourth path; an L-axis of motion; s1-separation state; s2-initial state; s3, an assembly state; p1 — first preparation position; p2-the clamping position; p3 — first guide position; p4-second preparation position; p5-second guide position.

Detailed Description

The invention will be further described with reference to specific embodiments and drawings, the advantages and features of which will become apparent as the description proceeds.

Referring to fig. 1 and 2, in a first preferred embodiment, the automatic bobbin thread winding sewing machine 1 of the present invention is used with a bobbin set 50 (as shown in fig. 3) and has a sewing machine body 10, a replacement bobbin device 20, a bobbin thread introducing device 30 and a bobbin set moving mechanism 40. Referring to fig. 3, the bobbin set 50 has a bobbin 51 capable of winding a bobbin thread 60 (as shown in fig. 14A) and a bobbin case 52 capable of being assembled to the bobbin 51, the bobbin 51 is provided with a bobbin member 511 and two limiting plates 512, a partial section of the bobbin member 511 is provided as a first bobbin portion 511a, and the remaining section of the bobbin member 511 is provided as a second bobbin portion 511B having an outer diameter larger than that of the first bobbin portion 511a, wherein the two limiting plates 512 are arranged at intervals and formed respectively at the first bobbin portion 511a and the second bobbin portion 511B, the bobbin member 511 is located between the two limit plates 512, and a winding space 513 capable of accommodating the bobbin thread 60 (as shown in fig. 14A) is formed between the bobbin member 511 and the two limit plates 512, as shown in the figure, the bobbin member 511 is recessed to form a shaft groove 511c communicating with the winding space 513, and one of the limit plates 512 is recessed to form a limit groove 512a communicating with the winding space 513, and the shaft groove 511c communicates with the limit groove 512a, so that the shaft groove 511c and the limit groove 512a together form a through space 514 recessed from the surface profile of the bobbin 51, however, the bobbin member 511 of the bobbin 51 has a first winding portion 511a and a second winding portion 511B for convenience of illustration only, as shown in fig. 3B, the bobbin member 511 extends outward a limit flange 511d, and the limit flange 511d is close to the limit plate 512 forming the limit groove 512 a.

As shown in fig. 3A, the bobbin case 52 has a housing 521 having a hollow shape, the housing 521 is provided with a bobbin 522 having a hollow shape inside, and a closed end 523 and an open end 524 are respectively formed at opposite ends, and a receiving space 525 capable of receiving the bobbin 51 is formed between an inner edge of the housing 521 and an outer edge of the bobbin 522, wherein the housing 521 penetrates a thread guiding hole 526 communicating with the receiving space 525 and is recessed from the open end 524 toward the closed end 523 to form a thread guiding groove 527 communicating with the receiving space 525, in this embodiment, the housing 521 is assembled with a thread clamping spring 528 capable of guiding the bobbin thread 60 (shown in fig. 17B) from the thread guiding groove 527 to the thread guiding hole 526, and the housing extends outward to form a hook arm 529, wherein one side of the thread clamping spring 528 is provided with a guiding opening 528a, and the hook arm 529 is recessed from an outer edge of the hook arm 529 to form a thread hole 529a, and the hook spring piece 529 is assembled with a spring piece 530a capable of restricting the bobbin 60 (shown in fig. 17B) to the thread blocking piece 529a, and the hook piece 530a is positioned at a side of the hook hole 530a side of the hook piece 530a capable of preventing the elastic piece 530a from being deformed to prevent the bobbin 60 from being separated from the thread guiding hole 529.

Referring to fig. 2, the sewing machine body 10 has a base 11 (the drawing only shows a partial state of the base 11), and the base 11 has a horizontally disposed lower shaft (not shown) therein, which can drive a rotating shuttle 12 assembled inside the base 11 to rotate, wherein a working table 13 is disposed above the base 11, and is connected to a fixing frame 14 and a thread clamping device 15 connected to the fixing frame 14.

Referring to fig. 2 and 4, the bobbin replacing device 20 is located in front of the rotary shuttle 12, and includes a bobbin set moving assembly 21, a movable frame 22, a first clamping jaw assembly 23, a second clamping jaw assembly 24, and the rotary shuttle 12, the bobbin set moving assembly 21 is used to drive the movable frame 22 to selectively approach or depart from the bobbin set rotating assembly 25, and includes a moving driving source 211 capable of generating moving power and a transmission rod 212 assembled to the moving driving source 211, in this embodiment, the moving driving source 211 is connected to the movable frame 22, and the transmission rod 212 is fixed to the fixed frame 14 of the sewing machine body 10, so that when the moving driving source 211 generates moving power, the moving driving source 211 moves axially along the transmission rod 212, so that the movable frame 22 can move to approach or depart from the rotary shuttle 12.

The movable frame 22 has a first connection end 221 and a second connection end 222 far from the first connection end 221, and an assembly portion 223 connected to the moving drive source 211 is provided between the first connection end 221 and the second connection end 222, wherein the first jaw assembly 23 has a first jaw base 231 formed by two symmetrical plates, the first jaw base 231 is assembled with a fixed first fixed jaw 232, and a first pivot portion 231a is provided at a side far from the first fixed jaw 232, the first fixed jaw 232 is fixedly connected to the first connection end 221, and the first pivot portion 231a is pivotally connected to a first movable jaw 233 capable of swinging, in addition, the first movable jaw 233 has a first clamping portion 233a (as shown in fig. 14C), and a first driver jaw 234 connected to the movable frame 22 is assembled at an end far from the first clamping portion 233a, wherein the first jaw driver jaw 234 can drive the first movable jaw 233 to swing back and forth, so that the first clamping portion 233a can selectively approach or leave the first fixed jaw 232.

The second jaw assembly 24 is connected to the second connecting end 222 of the movable frame 22, and mainly includes a second jaw base 241 having a structure similar to that of the first jaw base 231, a second fixed jaw 242 having a structure similar to that of the first fixed jaw 232, a second movable jaw 243 (as shown in fig. 14D) having a structure similar to that of the first movable jaw 233, and a second jaw driver 244 having a structure similar to that of the first jaw driver 234, and the second jaw base 241, the second fixed jaw 242, the second movable jaw 243, and the second jaw driver 244 are connected to each other in a manner similar to that of the first jaw assembly 23, so that the description of the structure of the second jaw assembly 24 is omitted.

The bobbin set rotating assembly 25 has a rotating driving source 251 and a transmission set 252, the rotating driving source 251 can generate rotating power and is fixed on the fixed frame 14 of the sewing machine body 10, and the transmission set 252 is located between the rotating driving source 251 and the transmission rod 212 of the bobbin set moving assembly 21, and has a first transmission gear 252a assembled on the rotating driving source 251 and a second transmission gear 252b engaged with the first transmission gear 252a, wherein the second transmission gear 252b is coaxially assembled on the transmission rod 212, so that when the rotating driving source 251 can generate rotating power, the first and second transmission gears 252a, 252b can drive the movable frame 22 to rotate with the transmission rod 212 as an axis, and, because the moving driving source 211 of the bobbin set moving assembly 21 and the first and second

clamping jaw assemblies

23, 24 are both connected to the movable frame 22, when the movable frame 22 rotates, the first and second

clamping jaw assemblies

23, 24 synchronously rotate.

Referring to fig. 2 and 5, the bobbin thread guiding device 30 is assembled to the fixed frame 14 of the sewing machine body 10, and has a bobbin set moving mechanism 31, a bobbin thread clamping mechanism 32, a thread clamping releasing mechanism 33 and a bobbin thread controlling mechanism 34, as shown in fig. 5 to 7, the bobbin set moving mechanism 31 is mainly composed of a first moving assembly 311, a second moving assembly 312, a third moving assembly 313 and a synchronizing assembly 314, as shown in the figure, the first moving assembly 311 has a first driving source 3111 and a first transmission 3112, the first driving source 3111 is assembled to the fixed frame 14 of the sewing machine body 10 and can generate rotation power to drive the first transmission 3112 to rotate, and the first transmission 3112 is coaxially disposed on a motion axis L parallel to the first transmission 3112, and a connection plate 3112a is formed at one end, wherein the first transmission member 3112 is mounted with a blade 3112b under the connection plate 3112a, the blade 3112b is made of an elastic material and has a blade portion 3112c under the connection plate 3112a (as shown in fig. 10) and a connection portion 3112d at a rear side of the connection plate 3112a (as shown in fig. 10), in this embodiment, a movement axis L overlaps an axis of the first transmission member 3112, and the first driving source 3111 is connected to the first transmission member 3112 through a first linkage 3113, wherein the first linkage 3113 has a first driving pulley 3113a assembled to the first driving source 3111 and a first driven pulley 3113b assembled to the first transmission 3112, and the first driving pulley 3113a is assembled to a first belt 3113c of the first driven pulley 3113 b.

The second moving assembly 312 has a second driving source 3121 capable of generating a rotating power and a second transmission member 3122 spaced apart from the first transmission member 3112, the second driving source 3121 is assembled to the fixed frame 14 of the sewing machine body 10 and connected to the second transmission member 3122 through a second linkage group 3123, such that the second driving source 3121 can drive the second transmission member 3122 to rotate through the second linkage group 3123, and the second transmission member 3122 is coaxially disposed on the first transmission member 3112, such that the axis of the second transmission member 3122 overlaps the moving axis L, as shown in the figure, the second linkage group 3123 has a second driving pulley 3123a assembled to the second driving source 3121 and a second driven pulley 3123b assembled to the second transmission member 3122, and the second driving pulley 3123a is connected to the second driven pulley 3123b through a second belt 3123 c.

The third motion assembly 313 has a third driving source 3131 capable of generating a moving force and a third driving element 3132 coaxially disposed on the motion axis L, the third driving source 3131 mounts a third linkage group 3133 and drives the third linkage group 3133 to move away from or abut against the third driving element 3132, and two ends of the third driving element 3132 respectively penetrate through the first driving element 3112 and the second driving element 3122, and the third driving element 3132 can move relative to the first driving element, the second driving element 3112 and the second driving element 3122, so that the third driving element 3132 is movably assembled to the first driving element, the second driving element 3112 and the third driving element 3122, in this embodiment, when the third driving source 1 releases the third linkage group 3133 to move away from the third driving element 3132, a pressing block 3132a connected to the third driving element 3132 and the second driving element 3122 jointly presses a reset acting element 4 between the second driving element 3122 and the third driving element 3134, so that the reset acting element 3134 acts on a pressing block as a spring to form a pressing block, and drives the reset acting force which pushes the third driving element 3134 to move along the third driving element 3131, so that the reset acting force a is smaller than the third driving element 3134a push the third driving element 3134, and the third driving element 3131 moves along the reset acting force, which presses the third driving element 3132, so that the reset acting on the third driving element 3134 moves along the third driving element 3131, and the reset acting force is smaller than the reset acting force, which acts on the reset acting block 3134, and pushes the third driving element 3134, and drives the third driving element 3134, which acts on the third driving element 3131 to push the third driving element 3134.

The synchronizing assembly 314 is located between the second transmission member 3122 and the third transmission member 3132, and can make the second transmission member 3122 and the third transmission member 3132 rotate at the same time, as shown in the figure, the synchronizing assembly 314 has a synchronizing groove 3141 formed in the second transmission member 3122 and a synchronizing protrusion 3142 formed in the third transmission member 3132, the synchronizing groove 3141 is in a long strip shape, and the synchronizing protrusion 3142 penetrates through the synchronizing groove 3141 and can move axially in the synchronizing groove 3141 when the third transmission member 3132 moves.

Referring to fig. 8, the bobbin case 52 of the bobbin core set 50 is mounted to the third transmission member 3132 of the third moving member 313, and a stopper member 315 is disposed between the bobbin case 52 and the third transmission member 3132, the stopper member 315 having an anti-displacement unit 3151 capable of restricting the bobbin case 52 from moving axially relative to the third transmission member 3132 and an anti-rotation unit 3152 capable of restricting the bobbin case 52 from rotating axially relative to the third transmission member 3132, as shown in the drawing, the anti-displacement unit 3151 is provided with a ring groove 3151a, a latch clip 3151b and a latch 3151c, the ring groove 3151a is formed in a partial section of the third transmission member 3132 protruding outward from the first transmission member 3112, and the latch clip 3151b and the latch 3151c are pivotally connected to each other, and both the latch clip 3151b and the latch 3151c are mounted to the closed end 523 of the bobbin case 52, in this embodiment, both the latch clip 3151b and the latch clip 3151c are assemblies belonging to the bobbin case 52, wherein when the bobbin case 52 is mounted to the third transmission member 3132, the shuttle case is mounted so that the third transmission member 312 and the shuttle shaft 3152 is prevented from moving axially into the closed end 523.

As shown in the drawings, the rotation preventing unit 3152 has a positioning protrusion 3152a and a positioning groove 3152b, the positioning protrusion 3152a is formed on the third transmission member 3132 of the third moving assembly 313 and is arranged at intervals in the annular groove 3151a of the movement preventing unit 3151, and the positioning groove 3152b is formed on the shuttle shaft 522 of the shuttle case 52, wherein when the shuttle case 52 is mounted on the third transmission member 3132, the third transmission member 3132 passes through the shuttle shaft 522 of the shuttle case 52, so that the positioning protrusion 3152a moves into the positioning groove 3152b to restrict the shuttle case 52 from rotating.

As shown in fig. 9, the bobbin thread clamping mechanism 32 includes a first moving component 321, a second moving component 322, and a clamp component 323, the first moving component 321 includes a first moving clamp driving source 3211 capable of performing a single-stage moving stroke, and a first clamp transmission member 3212 connected to the first moving clamp driving source 3211, the first moving clamp driving source 3211 and the first clamp transmission member 3212 are connected to an avoiding unit 324, and the avoiding unit 324 enables both the first moving clamp driving source 3211 and the first clamp transmission member 3212 to be displaced relative to the second moving component 322, so that when the first moving clamp driving source 3211 drives the first clamp transmission member 3212 to move, both the first moving clamp driving source 3211 and the first clamp transmission member 3212 can be displaced relative to the second moving component 322 by the avoiding unit 324.

In this embodiment, the avoiding unit 324 includes a swing plate 3241 installed on the first moving jig driving source 3211, an assembling plate 3242 installed on the second moving assembly 322, and a roller 3243 installed on the fixed frame 14, the swing plate 3241 is pivotally connected to the assembling plate 3242, so that the swing plate 3241 can swing with respect to the assembling plate 3242, and the assembling plate 3242 is recessed to form an arc-shaped guide rail 3242a with a lower center, so that the arc-shaped guide rail 3242a contacts with a guide wheel 3244 connected to the first jig driving element 3212, wherein a retainer 3245 provided as a spring is provided between the swing plate 3241 and the assembling plate 3242, and the retainer 3245 is pressed by the swing plate 3241 and the assembling plate 3242 to generate a retaining force 3245a acting on the swing plate 3241, so that the swing plate 41 swings with respect to the assembling plate 3242 by the retaining force 3245a, and the guide wheel 3244 moves toward the arc-shaped guide rail 3242a, so that the guide wheel 3244 can continuously contact with the arc-shaped guide rail 3242a by the retaining force 3245a of the retainer 3245.

As shown in the figure, the second moving assembly 322 has a second moving clamp driving source 3221 capable of performing a two-stage moving stroke and a second clamp transmission element 3222 connected to the second moving clamp driving source 3221, the second moving clamp driving source 3221 is assembled to the fixing frame 14 of the sewing machine body 10, and the second clamp transmission element 3222 is connected to the assembling plate 3242 of the second moving assembly 322, so that when the second moving clamp driving source 3221 drives the second clamp transmission element 3222 to move, the first moving assembly 321 is driven by the second clamp transmission element 3222 to move integrally, in addition, the clamp assembly 323 has a movable clamp 3231 pivotally connected to the first clamp transmission element 3212 and a fixed clamp 3232 fixed to the first clamp transmission element 3212, and the movable clamp 3231 is driven by a clamp driving source 3233 installed on the first clamp transmission element 3212 to enable the end of the movable clamp 3231 to selectively approach or separate from the end of the fixed clamp 3232 (as shown in fig. 16A).

As shown in fig. 9, the end of the movable clamp 3231 has a clamping groove 3231a, and the end of the fixed clamp 3232 has a clamping block 3232a with a volume smaller than that of the clamping groove 3231a, as shown in the figure, when the movable clamp 3231 is driven by the clamp driving source 3233 to swing, the movable clamp 3231 is close to the fixed clamp 3232, so that the clamping block 3232a penetrates into the clamping groove 3231a, and the clamping block 3232a and the clamping groove 3231a are in a tight fit state, in this embodiment, the movable clamp 3231 has a blocking pin 3231b in the middle of the clamping groove 3231a, and the fixed clamp 3232 is recessed from the clamping block 3232a to form a pin hole 3232b, and when the clamping block 3232a and the clamping groove 3231a are in a tight fit state, the blocking pin 3231b penetrates into the pin hole 3232 b.

Referring to fig. 5 and 10, the thread tension releasing mechanism 33 has a release lever 331 and a release driving source 332, the release lever 331 has a pivot portion 3311 pivotally connected to the fixing frame 14, and forms a pushing portion 3312 arranged at intervals on the connecting pad 3112a and an action portion 3313 connected to the release driving source 332 at both ends of the pivot portion 3311, a clamping space 3314 (as shown in fig. 7) is provided between the blade portion 3112c of the blade 3112b and the connecting pad 3112a, wherein the release driving source 332 can generate power to drive the action portion 3313 to move, so that the release lever 331 swings with the pivot portion 3311 as the axis, so that the pushing portion 3312 can selectively approach or separate from the rear side of the connecting pad 3112a, so that the pushing portion 3312 pushes against the lower end of the connecting portion 3112d of the blade 3112b, so that the blade portion 2c is separated from the connecting pad 3112a to allow the clamping space 3314 to assume an open state in which the bobbin 60 enters, in addition, as shown in fig. 5 and 11, the bobbin adjustment mechanism 34134 is connected to the pivot adjusting mechanism 3413, and the pivot adjusting rod 3411 has a pivot axis 3411, and a through-adjusting shaft 3413, and a through-pin 3413 is provided with a through-hole for the driving source 3411 for pivoting adjusting mechanism 3411, and a through-pin 3413, and a driving source 3413 for forming a pivot adjusting mechanism 3413, and a pivot adjusting mechanism 3413 for forming a pivot adjusting element 3413, and a pivot adjusting mechanism 3413 for pivoting adjusting element 3413, wherein the driving rod 3411, and a pivot adjusting mechanism 3413 for pivoting adjusting element 3413 for pivoting adjusting mechanism 3413 for pivoting adjusting element 3413.

Referring to fig. 12, the bobbin set moving mechanism 40 is located at one side of the bobbin set rotating assembly 25, and has a moving mechanism 41, a thread cutting mechanism 42 and a suction mechanism 43, the moving mechanism 41 has a moving driving source 411 installed on the fixed frame 14 and a moving arm 412 pivotally connected to the fixed frame 14, the moving driving source 411 is connected to the moving arm 412 and can drive the moving arm 412 to move and swing, the thread cutting mechanism 42 has a thread cutting driving source 421 installed on the moving arm 412 and a cutter 422 driven by the thread cutting driving source 421, the thread cutting driving source 421 is assembled with a thread cutting transmission member 423 connected to the cutter 422, wherein the thread cutting driving source 421 can drive the cutter 422 to rotate via the thread cutting transmission member 423, and the cutter 422 is located above the bobbin set moving mechanism 31, as shown in the figure, the suction mechanism 43 is connected to the moving arm 412 and has a suction port 431, and the suction mechanism 43 can form a suction air flow a (as shown in fig. 15B).

Referring to fig. 13, the bobbin 51 of the bobbin set 50 is mounted on the first transmission member 3112 of the first motion assembly 311, and a positioning mechanism 44 is disposed between the bobbin 51 and the first transmission member 3112, the positioning mechanism 44 can limit the penetrating space 514 of the bobbin 51 to be located right above the bobbin 51 when the bobbin 51 is assembled on the first transmission member 3112, so that the penetrating space 514 is close to the cutter 422 of the thread cutting mechanism 42, as shown in the figure, the positioning mechanism 44 has a guiding component 441 and a positioning component 442, the guiding component 441 is two magnets 4411, and the positioning component 442 is a protrusion 4421 and a positioning groove 4422 which can be engaged with each other, as shown in the figure, the two magnets 4411 are respectively assembled on the bobbin 51 and the first transmission member 3112, and in addition, the protrusion 4421 is formed on the first transmission member 3112, and the positioning groove 4422 is formed on the bobbin 51, wherein when the bobbin 51 is assembled on the first transmission member 3112, the bobbin 51 may be in a free state, and then, the first transmission member 3112 rotates to rotate relative to cause the protrusion 3112 to be locked with respect to the first transmission member 3112, so that the protrusion 4422 is rotated relative to the first transmission member 3112, and the protrusion 3112, so that the protrusion is locked with respect to the first transmission member 3112, and the bobbin 3112, so that the protrusion is locked with the bobbin 3112, and the protrusion 3112, so that the protrusion is locked with the protrusion 31151.

As shown in fig. 14A, in a specific application, the bobbin core group 50 wound by a bobbin thread 60 is respectively assembled to the rotary hook 12 of the sewing machine body 10 and the bobbin core group moving mechanism 31 of the bobbin thread introducing device 30, the bobbin core group 50 assembled to the rotary hook 12 is set as a first bobbin core group 501, the bobbin core group 50 assembled to the bobbin core group moving mechanism 31 is set as a second bobbin core group 502, the bobbin thread 60 provided to the sewing machine body 10 is assembled to the gripper 15 of the sewing machine body 10, the bobbin thread 60 provided to the sewing machine body 10 passes through the through hole 3412a of the bobbin control mechanism 34, a partial section of the bobbin thread 60 provided to the sewing machine body 10 can be positioned in the clamping space 3314 of the thread releasing mechanism 33, and the blade portion 2c of the blade 2b and the connecting disc 3112a of the first transmission member 3112 are clamped to the bobbin thread 60 provided to the sewing machine body 31110 together.

Referring to fig. 14B, when the sewing machine body 10 performs the sewing operation to make the remaining amount of the bobbin thread 60 of the first bobbin set 501 nearly exhausted, the moving driving source 211 of the bobbin set moving assembly 21 generates moving power to move the entire bobbin set moving assembly 21 along the transmission rod 212 to be close to the rotary hook 12, so that the movable frame 22 drives the first and

second gripper assemblies

23 and 24 to be close to the rotary hook 12 of the sewing machine body 10 and the bobbin set moving mechanism 31 of the bobbin thread introducing device 30, respectively.

Referring to fig. 14C and 14D, when the first and second clamping jaw assemblies 23 and 24 are close to the rotating shuttle 12 of the sewing machine body 10 and the bobbin set moving mechanism 31 of the bobbin thread guiding device 30, respectively, the first fixed clamping jaw 232 of the first clamping jaw assembly 23 contacts the bobbin case 52 of the first bobbin set 501, and the second fixed clamping jaw 242 of the second clamping jaw assembly 24 contacts the bobbin case 52 of the second bobbin set 502, and then the first clamping jaw driver 234 drives the first movable clamping jaw 233 to swing, so that the first clamping jaw 233a of the first movable clamping jaw 233 is close to the second fixed clamping jaw 242, and the first clamping jaw 233a is fastened to the latch clamping jaw 3151b disposed on the first bobbin set 501, thereby the first movable clamping jaw 233 and the first fixed clamping jaw 232 are clamped to the first bobbin set 243 together, and at the same time, the second clamping jaw driver 244 drives the second movable clamping jaw to swing, so that the second clamping jaw a of the second movable clamping jaw is close to the second fixed clamping jaw 243, and the second clamping jaw 242 is fastened to the bobbin set on the second movable clamping jaw 243 together with the bobbin set clamping jaw 502 b of the second bobbin set together.

Referring to fig. 14E and 14F, when the first gripper assembly 23 and the second gripper assembly 24 are respectively clamped to the first bobbin set 501 and the second bobbin set 502, the moving driving source 211 of the bobbin set moving assembly 21 generates moving power to move the bobbin set moving assembly 21 along the transmission rod 212 to move away from the rotary shuttle 12, so that the first gripper assembly 23 drives the first bobbin set 501 to move away from the rotary shuttle 12 of the sewing machine body 10, and the second gripper assembly 24 drives the second bobbin set 502 to move away from the bobbin set moving mechanism 31 of the bobbin thread guiding device 30, so that the first gripper assembly 23 can separate the first bobbin set 501 from the rotary shuttle 12 through the bobbin set moving assembly 21, and the second gripper assembly 24 can separate the second bobbin set 502 from the bobbin set moving mechanism 31 through the bobbin set moving assembly 21.

Then, the rotation driving source 251 of the bobbin set rotating assembly 25 can generate rotation power, so that the first transmission gear 252a of the transmission set 252 and the second transmission gear 252b of the transmission set 252 drive the transmission rod 212 of the bobbin set moving assembly 21 to rotate, so that the rotating transmission rod 212 drives the movable frame 22 to rotate clockwise along the arrow direction in the drawing, so that the second bobbin set 502 is located right in front of the rotary shuttle 12.

Referring to fig. 14G and 14H, the moving driving source 211 of the bobbin set moving assembly 21 generates moving power again, so that the moving driving source 211 drives the movable frame 22 to be close to the rotary shuttle 12 of the sewing machine body 10 along the transmission rod 212, so that the second bobbin set 502 is mounted on the rotary shuttle 12, and then the second clamping jaw driver 244 of the second clamping jaw assembly 24 drives the second clamping portion 243a of the second movable clamping jaw 243 to be away from the latch clamping member 3151b, so that the second bobbin set 502 is reliably mounted on the rotary shuttle 12, and at this time, the first clamping jaw assembly 23 still clamps the first bobbin set 501.

Referring to fig. 14I, 14J and 14K, when the second bobbin set 502 is assembled to the rotary shuttle 12, the movable frame 22 of the bobbin replacing device 20 is driven by the bobbin set moving assembly 21 and the bobbin set rotating assembly 25 to make the first clamping jaw assembly 23 approach to the bobbin set moving mechanism 31 of the guiding device, so that the first bobbin set 501 can be installed on the bobbin set moving mechanism 31, wherein when the first bobbin set 501 can be installed on the bobbin set moving mechanism 31, the third driving element 3132 of the third moving assembly 313 penetrates through the bobbin 522 of the first bobbin set 501, so that the positioning protrusion 3152a of the position limiting assembly 315 penetrates into the positioning groove 3152b of the position limiting assembly 315 to limit the bobbin case 52 of the first bobbin set 501 from rotating around the moving axis L.

As shown in the figure, when the positioning protrusion 3152a of the limiting assembly 315 penetrates into the positioning groove 3152b of the limiting assembly 315 to be engaged with each other, the first jaw driver 234 of the first jaw assembly 23 drives the first clamp portion 233a of the first movable jaw 233 to be away from the latch clamp 3151b disposed on the first bobbin set 501, and the latch clamp 3151b disposed on the first bobbin set 501 rebounds to make the latch 3151c snap into the annular groove 3151a of the limiting assembly 315 to limit the bobbin case of the second bobbin set 502 from moving along the moving axis L.

Then, the moving driving source 211 of the bobbin set moving assembly 21 generates moving power to drive the movable frame 22 to move away from the rotating shuttle 12, and at this time, both the first gripper assembly 23 and the second gripper assembly 24 do not grip the first bobbin set 501 and the second bobbin set 502 respectively, so that both the first gripper assembly 23 and the second gripper assembly 24 wait for the next operation of gripping the bobbin set 50.

Referring to fig. 14L, when the first bobbin set 501 can be mounted on the bobbin set moving mechanism 31, the bobbin 51 of the first bobbin set 501 is close to the connecting plate 3112a of the first transmission member 3112, at this time, the bobbin 51 may be in a free state capable of freely rotating, then, the first transmission member 3112 drives the bobbin 51 to rotate clockwise, so that the guiding components 441 provided with two magnets 4411 are mutually magnetically attracted to enable the bobbin 51 of the first bobbin set 501 to rotate around the movement axis L, and the protrusion 4421 of the alignment mechanism 44 is fastened to the positioning groove 4422 of the alignment mechanism 44 to limit the relative angular position between the bobbin 51 of the first bobbin set 501 and the first transmission member 3112, when the first transmission member 3112 stops rotating for several turns and is angularly positioned, the penetrating space 514 of the first bobbin guiding line can be located right above the shaft member 511, and when the first transmission member 3112 rotates for several turns, the first bobbin guiding line passes through the first transmission member 31150 and is angularly positioned, so that the two bobbin guiding lines 514 and the two bobbin guiding lines are symmetrically arranged in the bobbin guiding space 528, thereby forming two bobbin thread winding holes 528 symmetrically arranged between the bobbin shell housing shell 31160, and the bobbin guiding line 60.

Referring to fig. 15A, when the bobbin set 50 is not clamped by the first and

second gripper assemblies

23 and 24, the bobbin thread 60 remaining on the first bobbin set 501 begins to be removed, first, the third driving source 3131 of the third moving assembly 313 drives the third driving element 3132 of the third moving assembly 313 to move along the moving axis L, so that the synchronizing protrusion 3142 of the synchronizing assembly 314 moves toward the end of the synchronizing groove 3141, and the moving third driving element 3132 can drive the bobbin case 52 of the first bobbin set 501 to axially separate from the bobbin 51 of the first bobbin set 501, so that the bobbin case 52 of the first bobbin set 501 and the bobbin 51 of the first bobbin set 501 are in a separated state S1.

Referring to fig. 15B, next, the wire cutting driving source 421 of the wire cutting mechanism 42 drives the cutting blade 422 of the wire cutting mechanism 42 to rotate, the suction mechanism 43 starts to operate to form the suction air flow a, and then the movable driving source 411 of the movable mechanism 41 drives the movable arm 412 of the movable mechanism 41 to swing, so that the tangent driving source 421, the cutter 422 and the suction mechanism 43 synchronously swing downwards, and then the cutter 422 rotating is moved to a cutting position C to cut the bobbin thread 60 remaining in the winding space 513, when the bobbin thread 60 located inside the winding space 513 is cut by the cutter 422, the suction port 431 of the suction mechanism 43 is located at the side of the bobbin 51, so that the suction air flow a of the suction mechanism 43 can remove the bobbin thread 60 cut by the cutter 422, as shown, since the aligning mechanism 44 can restrict the penetrating space 514 of the first bobbin set 501 to be positioned right above the bobbin thread take-up member 511, when the cutter 422 is located at the cutting position C, the through space 514 can be aligned with the cutter 422 located at the cutting position C by the alignment mechanism 44, so that the cutter 422 can not only penetrate into the through space 514 to ensure that the cutter 422 can cut the bobbin thread 60, but also ensure that the bobbin spool 511 is not interfered, and then the movable driving source 411 of the movable mechanism 41 drives the movable arm 412 of the movable mechanism 41 to swing upwards, so that the thread cutting driving source 421, the cutter 422 and the suction mechanism 43 are far away from the bobbin 51, when the cutting blade 422 just separates from the through space 514 of the bobbin 51, the first transmission piece 3112 of the first moving assembly 311 can drive the bobbin 51 to rotate to enhance the effect of the suction mechanism 43 on sucking the residual bobbin thread 60, so that the bobbin 51 of the first bobbin set 501 is in an initial state S2 in which the bobbin thread 60 is not wound, and the operation of removing the bobbin thread 60 is completed.

As shown in fig. 15C, the suction mechanism 43 is assembled to the movable arm 412 of the movable mechanism 41 for convenience of description, that is, the suction mechanism 43 may be assembled to the fixed frame 14 of the sewing machine body 10 such that the suction mechanism 43 does not swing along with the movable arm 412 when the movable arm 412 swings, as shown in the figure, the suction port 431 of the suction mechanism 43 is located below the bobbin 51, and the appearance of the suction port 431 is in a funnel shape, so that when the cutter 422 is located at the cutting position C to cut the bobbin thread 60, the suction mechanism 43 can receive the bobbin thread 60 which naturally falls after being cut by the cutter 422, and the bobbin thread 60 is carried away from the bobbin 51 by the suction air flow a.

Referring to fig. 15D, in the preferred embodiment, the wire cutting transmission member 423 of the wire cutting mechanism 42 is connected to an air pressure source (not shown) capable of generating an air flow, wherein the wire cutting transmission member 423 is provided with a plurality of blowing holes 423a close to the cutter 422, and when the cutter 422 is located at the cutting position C to cut the bottom wire 60, the air pressure source forms a blowing air flow B flowing out of the blowing holes 423a to prevent the cut bottom wire 60 from winding around the wire cutting transmission member 423.

Referring to fig. 16A, after the bottom thread 60 is completely removed, the bottom thread 60 starts to be wound, first, the first driving source 3111 of the first moving assembly 311 generates a rotation power to drive the first driving pulley 3113a of the first linkage group 3113 to rotate, so that the first belt 3113c of the first linkage group 3113 drives the first transmission member 3112 to rotate around the movement axis L via the first driven pulley 3113b of the first linkage group 3113, and further the bottom thread 60 located in the clamping space 3314 starts to rotate along with the first transmission member 3112, so that the bobbin 51 of the first bobbin group 501 rotates synchronously to bring the bottom thread 60 into the winding space 513 of the bobbin 51.

When the bobbin 51 of the first bobbin set 501 winds the bobbin thread 60 initially, since the outer diameter of the first winding part 511a of the first bobbin set 501 is smaller than the outer diameter of the second winding part 511b of the first bobbin set 501, the bobbin thread 60 is wound around the first winding part 511a of the bobbin 51 first to ensure that the bobbin thread 60 covers the penetration space 514 of the first bobbin set 501 first, and further the bobbin thread 60 remaining after the bobbin 51 of the first bobbin set 501 is sewn remains in the first winding part 511a, so that the bobbin thread 60 can be cut off reliably when the cutter 422 of the thread cutting mechanism 42 is located at the cutting position C, in the preferred embodiment, in order to further ensure that the bobbin thread 60 winds around the first winding part 511a first in the initial stage of the winding operation, the adjustment driving source 342 of the bobbin thread control mechanism 34 drives the adjustment member 341 of the bobbin thread control mechanism 34 to swing, so that the through hole 3412a of the adjustment member 3412a restricts the bobbin thread 60 from deflecting toward the connecting disc 3112a, when the bobbin thread 60 is wound around the first winding portion 511a for a certain number of turns (for example, 10 turns or 20 turns), the adjustment driving source 342 then drives the adjustment member 341 so that the through hole 3412a does not restrict the deviation of the bobbin thread 60, and the bobbin thread 60 is uniformly wound around the bobbin shaft member 511 of the bobbin 51, and when the bobbin thread 60 is wound around the first winding portion 511a for a certain number of turns (for example, 10 turns or 20 turns), the release driving source 332 of the thread tension releasing mechanism 33 also drives the release lever 331 of the thread tension releasing mechanism 33 to swing, so that the pushing portion 3312 of the release lever 331 pushes against the lower end (shown in fig. 16F) of the connecting portion 3112d of the blade 3112b to release the bobbin thread 60, and the head of the bobbin thread 60 located in the clamping space 3314 is brought into the winding space 513 in a loose state, and then the release driving source 332 drives the pushing portion 3312 away from the connecting plate 3112a, and the blade 3112C of the blade 3112b contacts the connecting plate 3112a by the blade 3112b through its own elastic force, next, when the bobbin 51 of the first bobbin set 501 winds the ground thread 60 for a predetermined number of turns, the winding space 513 of the first bobbin set 501 is fully wound with the ground thread 60, and at this time, the first driving source 3111 of the first moving assembly 311 stops rotating.

As shown in fig. 16B, after the bobbin thread 60 is stopped to be wound, since the relative position between the bobbin thread 60 and the gripper assembly 323 cannot be determined, the adjustment driving source 342 of the bobbin control mechanism 34 needs to drive the adjustment member 341 of the bobbin control mechanism 34 to swing around the pivot shaft 3411, so that the adjustment plate 3412 of the adjustment member 341 abuts against the bobbin thread 60 located between the gripper 15 and the bobbin 51, and further the through hole 3412a of the adjustment plate 3412 restricts the bobbin thread 60 located between the gripper 15 and the bobbin 51 from approaching the gripper assembly 323, thereby enabling the gripper assembly 323 to secure the bobbin thread 60 clamped between the gripper 15 and the bobbin 51, and in order to achieve the above-mentioned effects, before the bobbin thread 60 is stopped to be wound, the adjustment driving source 342 is adjusted to drive the adjustment member 341 to swing, so that the adjustment plate 2 abuts against the bobbin thread 60 located between the gripper 15 and the bobbin 51, and the bobbin thread 60 located between the gripper 15 and the bobbin 51 is finally approached to the gripper assembly 323, and the bobbin thread 60 is moved on the path of the gripper assembly 323.

Referring to fig. 16C, the first moving clamp driving source 3211 of the first moving assembly 321 drives the first clamp driving element 3212 of the first moving assembly 321 to extend outward, and the clamp assembly 323 of the bobbin thread clamping mechanism 32 is driven by the first clamp driving element 3212 to move from a first preparation position P1 (shown in fig. 16A) to a clamping position P2 along a first path D1 (shown in fig. 16D) intersecting the moving axis L, so that the bobbin thread 60 between the bobbin 51 and the thread gripper 15 is located between the movable clamp 3231 and the fixed clamp 3232, in this embodiment, when the clamp assembly 323 moves from the first preparation position P1 to the clamping position P2, the guide wheel 3244 of the avoiding unit 324 continuously contacts the arc-shaped guide rail 3242a of the assembling plate 3242 by the holding force 3245a of the holding element 3245, so that the guide wheel 3244 moves from one end of the arc-shaped guide rail 3242a to the other end of the arc-shaped guide rail 3242a, the swing plate 3241 of the avoiding unit 324 drives the first moving assembly 321 and the clamp assembly 323 to swing along a counterclockwise direction, so as to change the relative positions between the first moving clamp driving source 3211, the first clamp driving member 3212 and the clamp assembly 323 and the first bobbin set 501, so that the clamp assembly 323 can avoid the bobbin 51 of the first bobbin set 501, and thus, when the clamp assembly 323 moves to the clamping position P2 along the first path D1, the clamp assembly 323 can pass through the avoiding unit 324 without touching the bobbin 51 of the first bobbin set 501, as shown in fig. 16D, when the clamp assembly 323 of the bobbin thread clamping mechanism 32 is located at the clamping position P2, the stop pin 3231b of the movable clamp 3231 is located on the bobbin 60 located between the bobbin 51 and the gripper 15, thereby, when the bobbin thread 60 is in a loose state, the stop pin 3231b can limit the partial length of the bobbin thread 60 to be located between the movable clamp 3231 and the fixed clamp 3232, when the movable clamp 3231 of the clamp assembly 323 swings to make the movable clamp 3231 close to the fixed clamp 3232 of the clamp assembly 323, and further makes the movable clamp 3231 and the fixed clamp 3232 clamp the bobbin 60 between the bobbin 51 and the gripper 15 at a position close to the adjusting member 341, the clamping block 3232a of the fixed clamp 3231 moves into the clamping groove 3231a, and further makes both the clamping groove 3231a and the clamping block 3232a in a close state, so that the clamping groove 3231a and the clamping block 3232a clamp the bobbin 60 to prevent the bobbin 60 from separating from the clamp assembly 323, and the clamping groove 3231a and the clamping block 3232a clamp a partial line segment of the bobbin 60 together, where the bobbin 60 is divided into a part of the wound bobbin 61 between the bobbin 51 and the bobbin assembly 323, and the remaining part of the bobbin 60 is set as a supply source 62 of the bobbin 60.

Referring to fig. 16E and 16F, the first moving clamp driving source 3211 of the first moving assembly 321 drives the first clamp driving member 3212 of the first moving assembly 321 to contract inward, and the clamp assembly 323 of the bobbin thread clamping mechanism 32 is driven by the first clamp driving member 3212 to move back from the clamping position P2 to the first preparation position P1 along the first path D1, so that the supply bobbin thread 62 passes through the lower portion of the bobbin 51 of the first bobbin set 501, at this time, the release driving source 332 of the thread clamping and releasing mechanism 33 drives the release lever 331 of the thread clamping and releasing mechanism 33 to swing, so that the pushing portion 3312 of the release lever 331 pushes against the lower end of the connecting portion 3112D of the blade 3112b, so that the blade portion 3112 of the blade 3112b is far away from the connecting plate 3112a to make the clamping space 4 in an open state for linking the bobbin thread 60, and then the first driving source 3111 of the first moving assembly 311 drives the first driving member 3112 to rotate clockwise through the first driving member 3113, the supply source bobbin thread 62 is passed through the clamping space 3314, and then the release driving source 332 drives the release lever 331 to swing, so that the pushing portion 3312 of the release lever 331 is far away from the lower end of the connecting portion 3112D of the blade 3112b, and the blade 3112b makes the blade portion 3112c of the blade 3112b and the connecting disc 3112a clamp the supply source bobbin thread 62 together by its own elastic force (as shown in fig. 16F) to wait for the next winding action of the bobbin thread 60, and then the second moving clamp driving source 3221 of the second moving assembly 322 drives the second clamp driving member 3222 of the clamp assembly 323 to perform a first moving stroke, so that the first clamp assembly 323 and the clamp assembly 323 are both driven by the second clamp driving member 3222 to move, so that the clamp assembly 323 is moved from the first preparation position P1 to a first guiding position P3 along a second path D2 intersecting the first path D1, when the clamp assembly 323 is located at the first guiding position P3, the supply bobbin thread 62 contacts the blade portion 3112c of the blade 3112b, and then as shown in fig. 16G and fig. 16H, the first driving source 3111 of the first moving assembly 311 drives the first driving member 3112 to rotate counterclockwise around the moving axis L through the first linkage group 3113, so that the blade 3112b is driven by the first driving member 3112 to cut off the supply bobbin thread 62, at this time, the thread end of the supply bobbin thread 62 is clamped by the blade 3112b, and the thread end of the winding bobbin thread 61 is clamped by the clamp assembly 323, in the above fig. 16A to fig. 16H, the bobbin case 52 is axially moved away from the bobbin 51, actually, the relative distance between the bobbin case 52 and the bobbin 51 is as shown in the separated state S1 of fig. 15A, and in fig. 16G, the bobbin 51 is moved out of the connecting plate 3112a for clearly showing the angle state of the blade 3112 b.

In the aforementioned steps of fig. 16A to 16E, in order to prevent the clamp assembly 323 from interfering with the connecting disc 3112a and the blade 3112b when the clamp assembly 323 moves along the first path D1, the first moving assembly 311 can drive the connecting disc 3112a and the blade 3112b to rotate, so that the blade 3112b rotates to an angle capable of avoiding the clamp assembly 323, but is not limited to the angle shown in the figure.

Referring to fig. 17A, after the bobbin thread 60 is cut, the bobbin thread 61 is mounted on the bobbin case 52 of the first bobbin set 501, first, the third driving source 3131 of the third motion assembly 313 drives the third linkage group 3133 to be away from the third driving element 3132, the restoring force 3134a of the restoring acting element 3134 acts on the pressing block 3132a, so that the third driving element 3132 moves toward the third driving source 3131, and the moving third driving element 3132 can drive the bobbin case 52 of the first bobbin set 501 to be assembled with the bobbin 51 of the first bobbin set 501, so that the bobbin case 52 of the first bobbin set 501 and the bobbin 51 of the first bobbin set 501 are changed from the separated state S1 to an assembled state S3, and at this time, the bobbin thread 61 contacts with the opening end 524 of the bobbin case 52, so that the bobbin thread 60 is tensioned.

As shown in fig. 17B, when the bobbin thread 60 is wound on the open end 524 of the bobbin case 52, the second driving source 3121 of the second motion assembly 312 generates a rotation power to rotate the second driving pulley 3123a of the second linkage group 3123, so that the second belt 3123c of the second linkage group 3123 drives the second transmission member 3122 to rotate around the motion axis L via the second driven pulley 3123B of the second linkage group 3123, and when the second transmission member 3122 rotates, the synchronizing protrusion 3142 of the synchronizing assembly 314 is restricted from moving by the synchronizing groove 3141, so that the second transmission member 3122 drives the third transmission member 3132 of the third motion assembly 313 to rotate through the synchronizing assembly 314, so that the bobbin case 52 of the first bobbin set 501 synchronously rotates, as shown in the figure, the second driving source 3121 first drives the bobbin case 52 of the first bobbin set 501 to rotate clockwise through the second transmission member 3122, and then drives the bobbin case 52 of the first bobbin case set 501 to rotate counterclockwise, so that the bobbin case 52 of the bobbin case is wound around the bobbin case shell 527 of the bobbin thread 60, and the bobbin case shell 52 of the bobbin case 521 can be wound around the bobbin case is wound around the bobbin case 52 counterclockwise, and the bobbin case shell 527 of the bobbin case 521 can be wound bobbin thread 60.

Referring to fig. 17C, next, the second moving clamp driving source 3221 of the second moving assembly 322 drives the second clamp driving element 3222 of the clamp assembly 323 to perform a second moving stroke, so that the first clamp assembly 323 and the clamp assembly 323 are driven by the second clamp driving element 3222 to move in a direction away from the connection pad 3112a, so that the clamp assembly 323 moves from the first guiding position P3 to a second preparation position P4 along a third path D3 parallel to the second path D2, as shown in fig. 17D, during the process that the clamp assembly 323 moves to the second preparation position P4, the first clamp driving element 3212 of the first moving assembly 321 contacts the roller 3243 of the avoiding unit 324, so that the swinging plate 3241 of the avoiding unit 324 swings, and the guiding wheel 3244 of the avoiding unit 324 is separated from the arc-shaped guiding rail 3242a, thereby the clamp assembly 323 of the bottom wire clamping mechanism 32 pulls the winding bottom wire 61, so that the winding bottom wire 61 is guided into the guiding opening 528a of the clip 528, and the clip bottom wire can be guided from the wire winding groove 527.

Referring to fig. 17E, when the clamp assembly 323 is located at the second preparation position P4, the first moving clamp driving source 3211 of the first moving assembly 321 drives the first clamp driving member 3212 of the first moving assembly 321 to extend outward again, so that the first clamp driving member 3212 drives the clamp assembly 323 to move from the second preparation position P4 to a second guiding position P5 along a fourth path D4 parallel to the first path D1, wherein during the process of moving the clamp assembly 323 to the second guiding position P5, the winding bobbin thread 61 contacts the hook arm 529 of the bobbin case 52 first, and then the winding bobbin thread 61 pushes against the elastic arm 530a of the thread piece 530, so that the elastic arm 530a deforms, so that the winding bobbin thread 61 is guided into the thread hole 529a of the hook arm 529, thereby completing the operation of installing the winding bobbin thread 61 in the bobbin case 52, wherein when the winding bobbin thread 61 is located in the thread hole 529a, the elastic arm 530a is not pushed by the winding bobbin thread 61 a and thus the winding bobbin thread 61 a is prevented from being separated from the elastic arm 530 a.

Referring to fig. 17F, the wound bobbin thread 61 is guided into the thread hole 529a of the hook arm 529, the clamp driving source 3233 of the clamp assembly 323 drives the movable clamp 3231 of the clamping assembly to swing, so that the movable clamp 3231 is away from the fixed clamp 3232 of the clamp assembly 323, and the clamp assembly 323 releases the thread end of the wound bobbin thread 61, and finally, the clamp assembly 323 moves back from the second guiding position P5 to the first standby position P1 by the first moving assembly 321 and the second moving assembly 322, so that the clamp assembly 323 waits for the bobbin thread 60 to be mounted on the bobbin case 52.

Referring to fig. 18, in the second preferred embodiment, the difference from the first preferred embodiment lies in the assembly manner among the first motion assembly 311, the second motion assembly 312, the third motion assembly 313 and the synchronization assembly 314, as shown in the figure, the second transmission member 3122 of the second motion assembly 312 is movably inserted into the first transmission member 3112 of the first motion assembly 311, the second linkage group 3123 of the second motion assembly 312 is a single hollow shaft, the third transmission member 3132 is movably assembled on the outer circumference of the second linkage group 3123, and is assembled into the second transmission member 3122 through the synchronization protrusion 3142 of the synchronization assembly 314, wherein the first transmission member 3132 and the third transmission member 3132 are respectively located on two opposite sides of the second transmission member 3122, in addition, the third linkage group 3133 of the third motion assembly 313 is provided with an elongated rack 3133a capable of driving the third transmission member 3132 to axially displace, and a group of elongated racks 3133a which are installed on the driving source 3133b of the third transmission member 3131, and the synchronization group 313 b is engaged with the rack 3133a groove 3133a which is engaged with the synchronization assembly 3123a groove 3141, and the synchronization groove 3141 is formed by the synchronization transmission member 3141 and the synchronization group 312.

In this embodiment, when the second driving source 3121 of the second moving assembly 312 generates a rotation power, so that the second driving source 3121 drives the second transmission member 3122 to rotate relative to the first transmission member 3112, at this time, the synchronization protrusion 3142 of the synchronization assembly 314 does not rotate under the influence of the first transmission member 3112, the synchronization groove 3141 of the synchronization assembly 314 synchronously rotates with the second transmission member 3122, in addition, the third driving source 3131 of the third moving assembly 313 generates a rotation power, the linkage gear 3133b of the third linkage group 3133 drives the linkage rack 3133a of the third linkage group 3133 to move, so that the third transmission member 3132 moves along the movement axis L, and when the third transmission member 3132 moves, the synchronization protrusion 3142 of the synchronization assembly 314 moves along the synchronization groove 3141 of the synchronization assembly 314, so that the third transmission member 3132 drives the second transmission member 3122 to axially move integrally through the synchronization assembly 314.

Referring to fig. 19, in the third preferred embodiment, the difference from the second preferred embodiment is that the bobbin set moving mechanism 31 has no synchronizing component 314 and the third driving element 3132 of the third moving component 313 is a plate and is assembled to the second driving source 3121 of the second moving component 312, so that the third driving element 3132 is not coaxially disposed on the moving axis L, wherein when the third driving source 3131 of the third moving component 313 drives the third driving element 3132 to move along the axial direction of the moving axis L, the whole second moving component 312 (including the second driving source 3121, the second driving element 3122 and the second linkage group 3123) simultaneously moves to move the bobbin case 52 to be separated from the bobbin 51, in this embodiment, the third driving element 3132 can be directly connected to the third driving source 3131, but the third driving element 3132 can also be connected to the third driving source 3131 through the third linkage group 3133.

However, the third actuator 3132 is assembled to the second driving source 3121 for convenience, that is, the third actuator 3132 can be assembled to the first driving source 3111 of the first moving component 311, and when the third actuator 3132 moves along the axial direction of the moving axis L by the third driving source 3131, the whole first moving component 311 (including the first driving source 3111, the first actuator 3112 and the first linkage 3113) can move along the moving axis L at the same time, so that the bobbin 51 moves to be separated from the bobbin case 52.

In addition, in this embodiment, before the bobbin thread 60 is wound around the bobbin 51, the clamp component 323 of the bobbin thread clamping mechanism 32 can temporarily clamp the bobbin thread 62 of the supply source, and then the release driving source 332 of the thread clamping release mechanism 33 drives the release lever 331 of the thread clamping release mechanism 33 to swing, so that the pushing portion 3312 of the release lever 331 pushes against the lower end of the connecting portion 3112d of the blade 3112b, and the blade portion 3112 of the blade 3112b is away from the connecting disc 3112a to open the clamping space 3114, and then the clamp component 323 is driven by the first moving component 321 and the second moving component 322 to temporarily separate the bobbin thread 62 of the supply source from the clamping space 3314, thereby in the process of removing the bobbin thread 60, because the bobbin thread 62 of the supply source is temporarily separated from the clamping space 3314, the first moving component 321 and the second moving component 3312 can prevent the extra bobbin thread 60 from being pulled out from the thread holder 15 in the rotating process of the first moving component 3312, and then after the removal of the bobbin thread 60 is completed, the first moving component 321, the second moving component 322 drives the clamp component 323 to move the blade portion 3112b to move, so that the blade portion 3112b and the blade portion 3112b swings together with the blade portion 3112b to drive the blade portion 3112b to move.

The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A bobbin block moving mechanism capable of driving a bobbin and a bobbin case which assume an assembled state, comprising:

the first motion assembly is provided with a first transmission piece which coaxially rotates along a motion axis and a first driving source which can drive the first transmission piece to rotate, and the shuttle peg can be driven by the first transmission piece to synchronously rotate;

a second motion assembly having a second transmission member coaxially rotatable along the motion axis and a second driving source capable of driving the second transmission member to rotate, wherein the second transmission member is capable of transmitting relative to the first transmission member so that the bobbin case is driven by the second transmission member to synchronously rotate, and the bobbin case is capable of rotating relative to the bobbin so that the bobbin case and the bobbin case can respectively rotate; and

and the third motion component is provided with a third transmission piece coaxially arranged on the motion axis and a third driving source capable of driving the third transmission piece to move along the motion axis, the first transmission piece and the second transmission piece are respectively movably sleeved at two ends of the third transmission piece, so that the third transmission piece can move relative to the first transmission piece and the second transmission piece, and the third transmission piece can move along the axis direction of the motion axis and can convert the shuttle peg and the shuttle shell from the assembling state into the separating state that the shuttle peg is separated from the shuttle shell.

2. The bobbin set movement mechanism according to claim 1, wherein: a synchronous component is arranged between one of the first transmission piece and the second transmission piece and the third transmission piece, and the synchronous component can enable one of the first transmission piece and the second transmission piece and the third transmission piece to simultaneously perform rotary motion or linear motion.

3. The bobbin case group moving mechanism according to claim 2, wherein: the synchronous component is provided with a synchronous groove and a synchronous convex column, the synchronous groove forms one of the first transmission piece and the second transmission piece, and the synchronous convex column is formed on the third transmission piece and penetrates through the synchronous groove.

4. The bobbin set movement mechanism according to claim 1, wherein: the third motion assembly further has a reset acting element capable of forming a reset acting force acting on the third transmission element, so that the third transmission element enables the bobbin and the bobbin case to be in the assembled state through the reset acting force.

5. The bobbin set movement mechanism according to claim 1, wherein: one of the second transmission member and the third transmission member is connected to the bobbin case, a limiting component is arranged between the bobbin case and the transmission member connected to the bobbin case, and the limiting component can limit the bobbin case from moving or rotating relative to the transmission member connected to the bobbin case.

6. The bobbin set movement mechanism according to claim 5, wherein: the limiting component is provided with an annular groove formed in the transmission piece and a latch arranged on the shuttle shell, and the latch can be buckled into the annular groove to limit the shuttle shell from moving axially.

7. The bobbin set movement mechanism according to claim 5, wherein: the shuttle shell is provided with a shuttle shaft sleeved on the transmission member, the limiting component is provided with a positioning groove and a positioning convex column, one of the positioning groove and the positioning convex column is formed on the shuttle shaft, the other one of the positioning groove and the positioning convex column is formed on the transmission member, and the positioning convex column is arranged in the positioning groove in a penetrating mode to limit the shuttle shell to be incapable of rotating.