WO2015172421A1

WO2015172421A1 - Shuttle-opening device for inner shuttle of rotating shuttle of embroidery machine

Info

Publication number: WO2015172421A1
Application number: PCT/CN2014/080398
Authority: WO
Inventors: 王海江; 田桂郁
Original assignee: 诸暨市新信机电科技有限公司
Priority date: 2014-05-13
Filing date: 2014-06-20
Publication date: 2015-11-19
Also published as: CN103966783A; CN104988679B; KR101588374B1; KR20140109838A; CN103966783B; CN104988679A

Abstract

A shuttle-opening device for an inner shuttle of a rotating shuttle of an embroidery machine. The device comprises a main shaft (2) and a rotating shuttle shaft (1) perpendicular to the main shaft (2). A head end of the rotating shuttle shaft (1) is provided with a rotating shuttle (10), and a tail end is provided with a rotating shuttle gear (11). A main shaft gear (20) is provided on the main shaft (2), the main shaft gear (20) engaging with the rotating shuttle gear (11) to drive the rotating shuttle shaft (1) and the rotating shuttle (10) to rotate. A shuttle-opening drive shaft (3) is arranged in parallel on one side of the rotating shuttle shaft (1). A shuttle-opening drive cam (22) is provided on the main shaft (2), the shuttle-opening drive cam (22) driving the shuttle-opening drive shaft (3) to move along the axial direction. The shuttle-opening drive shaft (3) is movably arranged within a shuttle-opening drive shaft sleeve (34). A shuttle-opening return spring (33) is provided between the shuttle-opening drive shaft sleeve (34) and the shuttle-opening drive shaft (3). A head end of the shuttle-opening drive shaft (3) is provided with a shuttle-opening hook (31), the shuttle-opening hook (31) acting with an inner shuttle (101) to drive the inner shuttle to rotate clockwise. The shuttle-opening device for an inner shuttle of a rotating shuttle of an embroidery machine reduces pressure between an outer shuttle and the inner shuttle of the rotating shuttle via the shuttle-opening hook driving the inner shuttle to rotate clockwise, and prevents a thread from breaking or being damaged when the thread exits between the inner shuttle and a stop hook.

Description

Embroidery machine rotary hook internal shuttle opening device

The invention relates to an embroidery machine.

Background technique

As shown in Fig. 1, when the embroidery machine performs the embroidery work, the thread 100 passes through the needle and the hook 10, and after the inner shuttle 101 is wrapped around one turn, since the thread take-up lever is pulled up, the inner shuttle and the stop hook 12 are Come out. When the yarn 100 is disengaged from between the inner shuttle 101 and the stop hook 12, the thread K is subjected to a load due to the pressure of the inner shuttle 101 and the outer shuttle 102, and the wire 100 is smoothly taken out from the rotary hook 10. As a result, the embroidery is not clean and tidy, and scars appear on the line, causing disconnection.

Summary of the invention

The technical problem to be solved by the present invention is to provide an internal shuttle shuttle device for the embroidery machine to minimize the pressure between the stopped inner shuttle and the rotating outer shuttle, so that the thread smoothly escapes.

In order to solve the above technical problem, the present invention adopts the following technical solution: The embroidery machine rotary shuttle internal shuttle device includes a main shaft and a rotary hook shaft perpendicular to the main shaft, and the rotary end of the rotary bobbin shaft is provided with a hook and a tail end. a rotary hook gear is arranged, the main shaft is provided with a main shaft gear and a rotary hook gear meshing to drive the rotary hook shaft and the rotary hook to rotate, and a rotary drive shaft is arranged in parallel on one side of the rotary hook shaft, and the spindle is provided with an open The shuttle driving cam drives the shuttle drive shaft to move in the axial direction, the shuttle drive shaft is movably disposed in the shuttle drive shaft sleeve, and the shuttle drive shaft sleeve and the shuttle drive shaft are provided with a shuttle reset a spring, the head end of the shuttle drive shaft is provided with a shuttle hook and an inner shuttle to drive the inner shuttle to rotate clockwise.

Preferably, the shuttle hook is mounted on the shuttle seat, and the shuttle seat is provided with a hoop structure and is connected to the head end of the shuttle drive shaft.

Preferably, the shuttle hook includes a shuttle head facing the hook, and the shuttle head is provided with a push inside The shuttle beveled by the shuttle.

Preferably, the shuttle hook further includes a shuttle plate, the shuttle plate is L-shaped, the one side of the shuttle plate is fixed to the shuttle seat, and the shuttle head is protrudedly disposed on the other side of the shuttle plate. Ends.

Preferably, the tail end of the shuttle drive shaft is provided with a bearing or a roller that cooperates with an outer peripheral surface of the shuttle drive cam.

According to the technical solution of the present invention, during the working process of the rotary hook, the spindle drives the shuttle drive shaft to reciprocate linearly along the axis thereof by the shuttle driving cam, and when the wire is started to fall off around the inner half of the inner shuttle, the shuttle head end of the shuttle drive is opened. The hook drives the inner shuttle to rotate clockwise, which reduces the pressure between the outer shuttle and the inner shuttle of the hook. When the wire is pulled out between the inner shuttle and the stop hook, the wire can be prevented from being broken or scratched.

DRAWINGS

The present invention will be further described below in conjunction with the drawings and specific embodiments:

Figure 1 is a schematic structural view 1 of the bottom wire breakage automatic sensing device;

2 is a schematic structural view 2 of a bottom wire breakage automatic sensing device;

Figure 3 is a schematic view showing the structure of the lock shaft after the bottom line is actuated as a moving rod;

Figure 4 is a schematic structural view of the shuttle shuttle shuttle device of the embroidery machine;

Figure 5 is a schematic view of the cooperation between the shuttle hook and the inner shuttle.

detailed description

The following is a detailed description of the bottom wire breaking automatic sensing device and the rotary shuttle internal shuttle device of the super high speed embroidery machine mainly in combination with the specific embodiments.

First, the automatic bending device for the bottom line of the embroidery machine is specifically described with reference to FIG. 1 and FIG. 3, which includes a main shaft 2 and a hook shaft 1 perpendicular to the main shaft. The head end of the rotary bobbin 1 is provided with a rotary hook 10, and the tail end a rotary hook gear 11 is disposed, and the main shaft 2 is provided with a main shaft gear 20 and a rotary hook gear 11 to drive the rotary bobbin 1 and the rotary hook 10 to rotate, and a bottom thread induction seat 40 is disposed on the rear side of the rotary hook 10, The bottom wire sensing seat 40 is hinged a bottom wire sensing action lever 41, a torsion spring 402 is disposed between the bottom wire sensing action lever 41 and the bottom wire sensing seat 40, and a bottom wire sensing actuating shaft 4 is disposed in parallel with one side of the hook shaft, and the bottom line is inductively actuated The shaft 4 is disposed in the bottom line induction actuating shaft sleeve 49. An actuating shaft return spring 48 is disposed between the bottom line induction actuating shaft sleeve 49 and the bottom line induction actuating shaft 4, and the main shaft 2 is provided with The bottom line induction drive cam 21 and the bottom end of the bottom line induction actuation shaft 4, the head end of the bottom line induction actuation shaft 4 is provided with an action portion and a head end of the bottom line induction action rod 41, and the bottom line 103 blocks the bottom line induction At the trailing end of the operating lever 41, a bobbin thread disconnecting sensor 45 is provided on the locus of movement of the bobbin threading actuating lever 41.

When the spindle 2 drives the rotary hook shaft 1 to rotate by the rotary shuttle gear 11, the spindle gear 20 and the bottom line induction drive cam 21 are driven to rotate, and the bottom line induction drive cam 21 drives the bottom line induction actuation shaft 4 to linearly move, due to the actuation shaft return spring 48. The action of the bottom line induction actuation shaft 4 is reset after moving to the limit position, so that the bottom line induction actuation shaft 4 forms a linear reciprocating motion of the actuation shaft sleeve 49 along the bottom line.

The bottom line sensing action lever 41 corresponds to a lever, and the bottom line sensing action lever 41 maintains a reciprocating swing of a predetermined trajectory by the torsion spring 402, the bottom line 103, and the bottom line sensing action lever 41. When the bottom line 103 is broken, the bottom line sensing action lever 41 The balance between the two ends is broken, and the bottom line sensing action lever 41 reaches the sensing point of the bobbin thread disconnection sensor 45. At this time, the bobbin thread disconnection sensor 45 sends a bobbin thread disconnection signal to the controller.

The bottom wire sensing base 40 is provided with at least two adjusting holes 401, and the bent portion at one end of the torsion spring is engaged with the adjusting hole. According to the strength of the tension of the bottom line 103, the strength of the torsion spring 402 needs to be adjusted. On the bottom line sensing seat 40, a plurality of adjusting holes 401 are provided, and the bent portions of the torsion spring ends are inserted into different adjusting holes. The tension of the torsion spring 402 can be adjusted to prevent the bottom line sensing action lever 41 from being unreset due to the tension of the bobbin thread and foreign matter.

The actuating portion includes an actuating seat 43. The actuating head has an actuating head 44 at its top end. The actuating head 44 is provided with a bearing or a roller. The bottom of the actuating seat 43 is rotated on the bottom wire induction actuating shaft 4 and fixed by the hoop structure. Wherein, the bearing head 44 is provided with a bearing or a roller to make the head and the bottom line feel Rolling friction between the action bars 41 allows smooth movement and minimizes friction. The hoop on the loosening actuating seat 43 can adjust the front and rear positions of the actuating seat 43 and the actuating head 44 on the bottom line induction actuating shaft 4, and then fix the hoop to achieve the purpose of adjusting the sensing time.

The bottom line sensing action rod 41 includes a circular arc bending section 412 at the head end and an L-shaped section 411 at the trailing end, and an L-shaped bending portion is disposed between the circular arc bending section and the L-shaped section. The actuating head 44 acts on the arcuate bending section 412, the L-shaped section 411 acts on the bottom line, and the hinge fulcrum of the bottom line sensing action lever 41 is disposed at the position where the arcuate bending section 412 and the L-shaped bending section meet.

In addition, the bottom end of the bottom wire sensing actuation shaft 4 is provided with a rolling head 47, which is a bearing or a roller. The bottom wire is actuated between the actuating shaft 4 and the bottom line induction driving cam 21 for rolling friction, which makes the movement smooth and minimizes friction.

A lock shaft 46 is disposed on the side of the bottom line induction actuation shaft 4, and the lock shaft 46 is driven by an electromagnet. The head end of the lock shaft 46 is provided with a lock head 461. A lock groove is provided on the actuating shaft 4 corresponding to the lock head. When the thread is trimmed, the bottom line 103 and the thread can not interfere with each other, and it is necessary to stop the bottom line sensing action lever 41. At this time, the controller controls the electromagnet to be energized, and the electromagnet drives the lock shaft 46 to move toward the bottom line induction actuation shaft 4, When the lock head 461 is engaged with the lock groove, the bottom thread sensing actuation shaft 4 is stopped, so that the bottom thread induction operating lever 41 is stopped from rotating in the direction of the bottom thread induction actuation shaft 4.

Automatic shutdown method for the bottom line of the embroidery machine:

When the spindle 2 rotates, the spindle gear 20 and the bottom line induction driving cam 21 are rotated, the hook shaft 1 and the hook 10 rotate with the hook gear 11, and the bottom line induction driving cam 21 drives the bottom line induction actuation shaft 4 to sense along the bottom line. Actuating the shaft sleeve 49 to make a linear reciprocating motion;

When the bottom line 103 is provided, the bottom line 103 cooperates with the bottom line induction actuating shaft 4 to actuate the bottom line sensing action lever 41, and the bottom line sensing action rod 41 performs normal reciprocating swing, and the bottom line sensing action rod 41 does not reach the bottom line disconnection sensor 45. When the bottom line 103 is broken, the balance of the bottom line sensing action lever 41 is Destroy, the bottom line sensing action rod 41 reaches the sensing point of the bottom line disconnection sensor 45. At this time, the bottom line disconnection sensor 45 sends a bottom line disconnection signal to the controller;

Then, the controller controls the spindle motor to stop rotating.

When the thread is trimmed, the bottom line induction actuation shaft 4 is required to stop. At this time, the controller sends a signal to the electromagnet, and the electromagnet energizes to drive the lock shaft 46 to move toward the bottom line induction actuation shaft 4, and finally the lock head 461 is locked. The groove causes the bottom line induction actuating shaft 4 to stop moving toward the bottom line sensing action lever 41.

As shown in FIG. 4 and FIG. 5, the embroidery machine shuttle shuttle device is arranged in parallel with a shuttle drive shaft 3 on the side of the rotary hook shaft 1, and the spindle 2 is provided with a shuttle drive cam 22 drive. The shuttle drive shaft 3 moves in the axial direction, the shuttle drive shaft 3 is movably disposed in the shuttle drive shaft sleeve 34, and the shuttle drive shaft sleeve 34 and the shuttle drive shaft 3 are provided with a shuttle The return spring 33 is provided with a shuttle hook 31 at the head end of the shuttle drive shaft 3 and the inner shuttle 101 to drive the inner shuttle to rotate clockwise.

The shuttle hook 31 is mounted on the shuttle base 32, and the shuttle seat is provided with a hoop structure 321 connected to the head end of the shuttle drive shaft 3. The shuttle hook 31 includes a shuttle head 311 facing the hook, and the shuttle head 311 is provided with a shuttle slope 3111 for pushing the rotation of the inner shuttle 101. The shuttle hook further includes a shuttle plate 310, the shuttle plate is L-shaped, one side of the shuttle plate is fixed to the shuttle seat, and the shuttle head 311 is protrudedly disposed on the other side of the shuttle plate. unit. The rear end of the shuttle drive shaft is provided with a bearing or a roller 30 that cooperates with the outer peripheral surface of the shuttle drive cam 22.

At the head end of the shuttle drive shaft 3, a step head having a smaller diameter is provided, and the shuttle seat 32 is fixed on the step head by the hoop structure 321 to release the bolt of the hoop, and the shuttle seat can be adjusted on the shuttle drive shaft. The axial position, after the adjustment is completed, the bolt of the hoop can be restrained, so that the purpose of adjusting the spacing between the inner shuttle 101 and the shuttle hook 31 can be achieved, and finally the adjustment of the clockwise rotation angle of the inner shuttle can be realized.

The shuttle head 311 is a right-angled trapezoidal structure, the shuttle slope 3111 is located on the oblique side of the right-angled trapezoid, and the inner shuttle ring is provided with a notch 1101 upward, the shuttle head enters the notch, and the shuttle slope cooperates with the notch edge to push the inner shuttle clockwise rotation.

The shuttle head 311 and the shuttle plate 310 are integrated, and the shuttle plate 310 is fixed by bolts and the shuttle base 32. When the shuttle hook needs to be replaced, the bolt can be unscrewed.

Since the rear end of the shuttle drive shaft 3 is provided with a bearing or the roller is engaged with the outer peripheral surface of the shuttle drive cam 22, the friction between the drive cam and the shuttle drive shaft is maximized.

When the spindle 2 rotates, the spindle gear 20 and the shuttle drive cam 22 rotate in the same direction. Under the transmission of the spindle gear 20 and the hook gear 11, the hook shaft 1 and the outer shuttle rotate in the same direction, and at the same time, the shuttle drive Under the action of the cam 22 and the shuttle return spring 33, the shuttle drive shaft 3 reciprocates linearly, and when the wire is started to fall off around the inner half of the inner shuttle, the inner shuttle 101 grasps the stop hook 12 and stops, and drives the head end of the drive shaft 3 The opening hook 31 drives the inner shuttle 101 to rotate clockwise, which reduces the pressure between the outer shuttle and the inner shuttle of the hook, and prevents the wire from being broken when the wire is pulled out between the inner shuttle 101 and the stop hook 12 or There is a scar.

Claims

Claim

1. The embroidery machine shuttle shuttle shuttle device comprises a spindle (2) and a hook shaft (1) perpendicular to the spindle (2), and the hook end of the hook shaft (1) is provided with a hook (10) ), the tail end is provided with a hook gear (11), and the main shaft (2) is provided with a main shaft gear (20) and a hook gear (11) meshing to drive the hook shaft (1) and the hook (10) to rotate, The utility model is characterized in that: a shuttle drive shaft (3) is arranged in parallel on one side of the hook shaft (1), the spindle

(2) a shuttle drive cam (22) is provided to drive the shuttle drive shaft (3) to move in the axial direction, and the shuttle drive shaft (3) is movable in the shuttle drive shaft sleeve (34). A shuttle return spring (33) is disposed between the shuttle drive shaft sleeve (34) and the shuttle drive shaft (3), and the shuttle drive shaft (3) has a shuttle hook (31) at the head end thereof The inner shuttle (101) acts to drive the inner shuttle to rotate clockwise.

2. The embroidery machine hook shuttle internal shuttle device according to claim 1, wherein: the shuttle hook (31) is mounted on the shuttle seat (32), and the shuttle seat is provided with a hoop Structure (321) and shuttle drive shaft

(3) The head end is connected.

3. The embroidery machine hook shuttle internal shuttle device according to claim 2, wherein: the shuttle hook (31) comprises a shuttle head (311) facing the hook, and the shuttle head is provided There is a shuttle bevel (3111) that pushes the inner shuttle to rotate.

4. The embroidery machine hook shuttle internal shuttle device according to claim 3, wherein: the shuttle hook further comprises a shuttle plate (310), the shuttle plate is L-shaped, and the shuttle is open. One side of the plate is fixed to the shuttle seat, and the opening head (311) is protruded from the other end of the opening plate.

The embroidery machine shuttle shuttle device according to any one of claims 1 to 4, characterized in that: the tail end of the shuttle drive shaft (3) is provided with a bearing or a roller (30) and The outer peripheral surface of the shuttle drive cam (22) is fitted.