CN103952872B - A Super High Speed Embroidery Machine - Google Patents

Abstract

The invention discloses an ultra-high-speed embroidery machine, wherein a bottom thread induction seat is arranged at the rear side of a rotating shuttle, a bottom thread induction action rod is hinged on the bottom thread induction seat, a bottom thread blocks the tail end of the bottom thread induction action rod, a bottom thread breakage inductor is arranged on the motion track of the bottom thread induction action rod, a shuttle opening driving shaft is arranged at the other side of a rotating shuttle shaft in parallel, a shuttle opening driving cam is arranged on a main shaft to drive a shuttle opening driving shaft to move along the axial direction, and a shuttle opening hook is arranged at the head end of the shuttle opening driving shaft to drive an inner shuttle to rotate clockwise under the action of the inner shuttle. The invention can prevent the problem that no special device stops the machine when the bottom line is broken or used up in the prior art; in addition, when the strip silk thread starts to fall off around the inner shuttle half loop, the shuttle opening hook at the head end of the shuttle opening driving shaft drives the inner shuttle to rotate clockwise, so that the pressure between the outer shuttle and the inner shuttle of the rotating shuttle is reduced, and the strip silk thread can be prevented from being broken or generating scars when the strip silk thread is separated from the inner shuttle and the stopping hook.

Description

A Super High Speed Embroidery Machine

technical field

The invention relates to an embroidery machine.

Background technique

As shown in Figure 1, the embroidery machine is generally a link formed by a needle and a rotary hook 10 to form a silk thread and a bottom thread 103, forming stripes on the silk thread work object.

Generally speaking, if the silk thread is broken, the machine can be stopped according to the signals of other induction plates and sensors, but the bottom line 103 is basically useless.

When the bottom thread 103 is broken or used up, there is no special device to stop the machine. If the thread is continuous, the machine will always rotate. When embroidery is formed in one direction, it will not form a link, so it will frequently cause reset (return) or The job itself is bad.

In the prior art, the bobbin thread sensing rod is installed on the rotary hook to sense the bobbin thread, and the bobbin thread sensing rod descends toward the lower part of the needle plate. In addition, in the spring driving part that resets the movement of the lower thread sensing lever, foreign objects are easy to enter, causing its operation to be wrong.

In addition, as shown in Figure 4, when the embroidery machine is performing embroidery work, the thread 100 passes through the needle and the rotary hook 10, and after a circle on the inner shuttle 101, because the thread take-up lever is pulled up, it is drawn from the inner shuttle and the stop hook. Come out between 12. When bar silk thread 100 deviates from between inner shuttle 101 and stop hook 12, because of the pressure of inner shuttle 101 and outer shuttle 102, line road K is under load, and affects bar silk thread 100 and deviates from in rotary hook 10 smoothly. As a result, the embroidery is not clean and tidy, scars appear on the thread, and thread breakage occurs.

Contents of the invention

The technical problem to be solved by the present invention is to provide an ultra-high-speed embroidery machine, which can automatically sense and control the shutdown when the bottom thread is broken, and at the same time, avoid the pressure between the stopped inner shuttle and the rotating outer shuttle to the greatest extent, thereby Make the silk thread come out smoothly.

In order to solve the above technical problems, the present invention adopts the following technical solutions: an ultra-high-speed embroidery machine, including a main shaft and a hook shaft perpendicular to the main shaft, a hook is provided at the head end of the hook shaft, and a hook is provided at the tail end. Hook gear, the main shaft is provided with a main shaft gear and hook gear meshing to drive the rotary hook shaft and the rotary hook to rotate, and a bottom thread induction seat is arranged on the rear side of the rotary hook, and a bottom thread induction action lever is hinged on the bottom thread induction seat , a torsion spring is provided between the bottom thread sensing action lever and the bottom line sensing seat, a bottom line sensing action shaft is arranged parallel to one side of the hook shaft, and the bottom line sensing action shaft is movable on the bottom line sensing action sleeve Inside the cylinder, an actuating shaft reset spring is provided between the bobbin thread induction actuating shaft sleeve and the bobbin thread inductive actuating shaft, and the bottom thread inductive driving cam is provided on the main shaft to act on the tail end of the bobbin thread inductive actuating shaft. The head end of the bobbin thread sensing actuating shaft is provided with an actuating part and the head end of the bobbin thread sensing actuating rod. On the other side of the rotary hook shaft, a shuttle opening drive shaft is arranged in parallel. The main shaft is provided with a shuttle opening drive cam to drive the shuttle opening drive shaft to move in the axial direction. Inside the shaft sleeve, a shuttle opening reset spring is provided between the shuttle opening drive shaft sleeve and the shuttle opening drive shaft, and a shuttle opening hook is provided at the head end of the shuttle opening drive shaft to drive the inner shuttle to rotate clockwise by the action of the inner shuttle .

Preferably, at least two adjustment holes are provided on the bottom thread induction seat, and the bent part at one end of the torsion spring is snapped into the adjustment holes.

Preferably, the actuating part includes an actuating seat, and an actuating head is provided at the top of the actuating seat.

Preferably, the actuating head is provided with bearings or rollers.

Preferably, the bottom rotation of the actuating seat is set on the bottom line induction actuating shaft and fixed by a hoop structure.

Preferably, a rolling head is provided at the tail end of the bottom line induction actuating shaft, and the rolling head is a bearing or a roller.

Preferably, the hook opening hook is installed on the opening seat, and the opening seat is provided with a hoop structure to connect with the head end of the opening drive shaft.

Preferably, the hook opening hook includes a hook opening head facing the rotary hook, and the hook opening head is provided with a hook opening slope to push the inner shuttle to rotate.

Preferably, the opening hook also includes an opening plate, the opening plate is L-shaped, one side of the opening plate is fixed to the opening seat, and the opening head protrudes from the other side of the opening plate Ends.

Preferably, a bearing or a roller is provided at the tail end of the shuttle driving shaft to cooperate with the outer peripheral surface of the shuttle driving cam.

In the technical solution of the present invention, the main shaft drives the bottom thread induction driving cam to rotate, and the bottom thread induction driving cam drives the bottom thread induction actuating shaft to move linearly. Due to the function of the reset spring of the actuating shaft, the bottom thread induction actuating shaft will reset after moving to the limit position. Therefore, the bottom line sensing actuation shaft will form a straight line reciprocating motion along the bottom line sensing actuation shaft sleeve. The bottom line sensing action lever is equivalent to a lever. The reciprocating swing of the trajectory, when the bottom thread breaks, the balance between the two ends of the bottom thread sensing action lever will be destroyed, and the bottom thread sensing action lever will exceed the established track and reach the sensing point of the bottom thread breaking sensor. The controller sends the bottom thread broken signal. Therefore, the present invention can prevent the problem in the prior art that there is no special device to stop the machine when the bottom thread is broken or used up, and minimize the economic and time loss.

In addition, during the working process of the hook, the main shaft drives the opening drive shaft to reciprocate and linearly move along its axis through the opening drive cam. Turning clockwise reduces the pressure between the outer shuttle and the inner shuttle of the rotary hook, and prevents the first silk thread from being broken or scarred when it comes out between the inner shuttle and the stop hook.

Description of drawings

The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:

Fig. 1 is a structural schematic diagram 1 of an automatic sensing device for bobbin thread breakage;

Fig. 2 is a structural schematic diagram 2 of the bottom thread breaking automatic sensing device;

Fig. 3 is a schematic diagram of the structure after the locking shaft locks the bottom thread induction actuating lever;

Fig. 4 is a structural schematic diagram of the inner shuttle opening device of the rotary hook of the embroidery machine;

Fig. 5 is a schematic diagram of cooperation between the opening hook and the inner shuttle.

Detailed ways

In the following, the bobbin thread breakage automatic sensing device and the hook inner shuttle opening device of the ultra-high-speed embroidery machine will be specifically described in conjunction with specific embodiments.

Firstly, in conjunction with Fig. 1 and Fig. 3, the automatic sensing device for bobbin thread breakage of the embroidery machine will be described in detail, which includes a main shaft 2 and a hook shaft 1 perpendicular to the main shaft. A rotary hook gear 11 is provided, and the main shaft 2 is provided with a main shaft gear 20 meshing with the rotary hook gear 11 to drive the rotary hook shaft 1 and the rotary hook 10 to rotate. A bottom thread sensing action lever 41 is hinged on the bottom thread sensing seat 40, a torsion spring 402 is arranged between the bottom thread sensing action lever 41 and the bottom thread sensing seat 40, and a bottom thread sensing action shaft 4 is arranged parallel to one side of the hook shaft. The bottom line induction actuation shaft 4 is movably arranged in the bottom line induction actuation shaft sleeve 49, and an actuation shaft return spring 48 is arranged between the bottom line induction actuation shaft sleeve 49 and the bottom line induction actuation shaft 4, The main shaft 2 is provided with a bottom thread induction drive cam 21 which interacts with the tail end of the bottom thread induction actuation shaft 4, and the head end of the bottom thread induction actuation shaft 4 is provided with an actuating part and the head end of the bottom thread induction actuation rod 41. , the bottom thread 103 is blocked at the tail end of the bottom thread sensing action lever 41, and a bottom thread breakage sensor 45 is provided on the movement track of the bottom thread sensing action lever 41.

While the main shaft 2 drives the hook shaft 1 to rotate through the hook gear 11, it drives the main shaft gear 20 and the bottom thread induction driving cam 21 to rotate, and the bottom thread induction driving cam 21 drives the bottom thread induction actuating shaft 4 to move linearly. After the bottom line induction actuation shaft 4 moves to the limit position, it will reset, so the bottom line induction actuation shaft 4 will form a linear reciprocating motion along the bottom line induction actuation shaft sleeve 49.

The bottom thread sensing action lever 41 is equivalent to a lever. Under the action of the torsion spring 402, the bottom thread 103 and the bottom line sensing action lever 41, the bottom line sensing action lever 41 keeps reciprocating swing of the predetermined trajectory. When the bottom thread 103 breaks, the bottom thread sensing action lever 41 The balance at both ends is destroyed, and the bottom thread sensing action lever 41 reaches the sensing point of the bottom thread breakage sensor 45. At this moment, the bottom thread breakage sensor 45 sends a bottom thread breakage signal to the controller.

The bottom thread induction seat 40 is provided with at least two adjustment holes 401, and the bending part at one end of the torsion spring is snapped into the adjustment holes. According to the strength of the tension of the bottom thread 103, the strength of the torsion spring 402 needs to be adjusted. On the bottom thread induction seat 40, a plurality of adjustment holes 401 are arranged, and the bending parts at the ends of the torsion spring are snapped into different adjustment holes. The adjustable tension of the torsion spring 402 prevents the bobbin thread sensing action lever 41 from not being reset due to bobbin thread tension and foreign matter.

The actuating part includes an actuating seat 43, an actuating head 44 is arranged on the top of the actuating seat, and a bearing or a roller is arranged on the actuating head 44. The bottom of the actuating seat 43 is rotatably arranged on the bottom thread induction actuating shaft 4 and fixed by a hoop structure. Wherein, the actuating head 44 is provided with bearings or rollers, so that there is rolling friction between the actuating head and the bottom line sensing actuating rod 41, so that the movement is smooth and friction can be minimized. And unscrewing the hoop on the actuator seat 43 can adjust the front and rear positions of the actuator seat 43 and the actuator 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 thread sensing action lever 41 includes a circular arc bending section 412 at the head end and an L-shaped section 411 at the tail end, and an L-shaped bending portion is provided between the arc bending section and the L-shaped section. The actuating head 44 acts on the arc bending section 412, the L-shaped section 411 acts on the bottom line, and the hinge fulcrum of the bottom line sensing action rod 41 is set at the joint position between the arc bending section 412 and the L-shaped bending part.

In addition, a rolling head 47 is provided at the tail end of the bottom line induction actuating shaft 4, and the rolling head 47 is a bearing or a roller. Make rolling friction between the bottom thread induction actuating shaft 4 and the bottom thread induction driving cam 21, so that the movement is smooth and friction can be minimized.

One side of the bottom line induction actuating shaft 4 is provided with a locking shaft 46 perpendicular to it, the locking shaft 46 is driven by an electromagnet, and the head end of the locking shaft 46 is provided with a locking head 461, and the bottom line induction The actuating shaft 4 is provided with a locking groove corresponding to the locking head. During thread trimming, the bobbin thread 103 and the strip thread cannot interfere with each other, and it is necessary to stop the bobbin thread sensing action lever 41. At this time, the controller controls the electromagnet to be energized, and the electromagnet drives the locking shaft 46 to move in the direction of the bobbin thread sensing actuating shaft 4. When the locking head 461 snaps into the locking groove, the bobbin thread sensing actuating shaft 4 stops moving, thereby making the bobbin thread sensing actuating lever 41 stop rotating in the direction of the bobbin thread sensing actuating shaft 4 .

How to automatically stop the embroidery machine when the bottom thread breaks:

When the main shaft 2 rotates, it drives the main shaft gear 20 and the bottom thread induction driving cam 21 to rotate, the hook shaft 1 and the hook 10 rotate synchronously with the hook gear 11, and the bottom thread induction driving cam 21 drives the bottom thread induction actuation shaft 4 to operate along the bottom thread induction The moving shaft sleeve 49 makes a linear reciprocating motion;

When there is a bottom thread 103, the bottom thread 103 and the bottom thread sensor shaft 4 act together on the bottom thread sensor lever 41, and the bottom thread sensor lever 41 performs a normal reciprocating swing, and the bottom thread sensor lever 41 will not reach the sensor of the bottom thread breakage sensor 45. point, when the bottom thread 103 is broken, the balance between the two ends of the bottom thread sensing action lever 41 is destroyed, and the bottom thread sensing action lever 41 reaches the sensing point of the bottom thread breaking sensor 45. At this time, the bottom thread breaking sensor 45 sends a message to the controller. line signal;

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

When thread trimming, the bottom thread induction actuation shaft 4 needs to stop, at this time the controller sends a signal to the electromagnet, and the electromagnet is energized to drive the locking shaft 46 to move in the direction of the bottom thread induction actuation shaft 4, and finally the locking head 461 snaps into the lock Groove, make the bottom line induction actuating shaft 4 stop moving to the bottom line induction operation rod 41.

As shown in Fig. 4 and Fig. 5, in the shuttle opening device of the rotary hook of the embroidery machine, a shuttle opening drive shaft 3 is arranged in parallel on one side of the rotary hook shaft 1, and a shuttle opening driving cam 22 is arranged on the main shaft 2 to drive The shuttle-opening drive shaft 3 moves axially, and the shuttle-opening drive shaft 3 is movably arranged in the shuttle-opening drive shaft sleeve 34, and a shuttle-opening shaft is arranged between the shuttle-opening drive shaft sleeve 34 and the shuttle-opening drive shaft 3. Back-moving spring 33, described shuttle-opening drive shaft 3 head end is provided with shuttle-opening hook 31 and inner shuttle 101 effects drive inner shuttle to rotate clockwise.

The shuttle opening hook 31 is installed on the shuttle opening seat 32, and the shuttle opening seat is provided with a hoop structure 321 connected with the head end of the shuttle opening drive shaft 3. The shuttle hook 31 includes a shuttle opening head 311 facing the rotary hook, and the shuttle opening head 311 is provided with a shuttle opening slope 3111 to push the inner shuttle 101 to rotate. The shuttle hook also includes a shuttle opening plate 310, the shuttle opening plate is L-shaped, one side of the shuttle opening plate is fixed to the shuttle opening seat, and the shuttle opening head 311 protrudes from the other side of the shuttle opening plate department. The tail end of the shuttle driving shaft is provided with a bearing or a roller 30 to cooperate with the outer peripheral surface of the shuttle driving cam 22 .

A step head with a smaller diameter is provided at the head end of the shuttle driving shaft 3, and the shuttle opening seat 32 is fixed on the step head by a hoop structure 321, and the bolt of the hoop is loosened to adjust the position of the shuttle opening seat on the hook opening drive shaft. After the adjustment of the axial position is completed, the bolts of the hoop can be locked, so as to achieve the purpose of adjusting the distance between the inner shuttle 101 and the opening hook 31, and finally realize the adjustment of the clockwise rotation angle of the inner shuttle.

The shuttle head 311 is a right-angled trapezoidal structure, the shuttle opening slope 3111 is located on the hypotenuse of the right-angled trapezoid, and the inner shuttle ring is provided with a gap 1101 upwards, the shuttle head enters the gap, and the opening slope and the edge of the gap cooperate to push the inner shuttle to rotate clockwise .

Shuttle opening head 311 and shuttle opening plate 310 are integral structures, and shuttle opening plate 310 is fixed by bolt and opening shuttle seat 32, when needing to change opening shuttle hook, unscrew bolt and get final product.

Since the tail end of the shuttle driving shaft 3 is provided with a bearing or a roller cooperates with the outer peripheral surface of the shuttle driving cam 22, the friction between the shuttle driving cam and the shuttle driving shaft is reduced to the greatest extent.

When the main shaft 2 rotates, the main shaft gear 20 and the opening drive cam 22 rotate in the same direction. Under the transmission action of the main shaft gear 20 and the hook gear 11, the hook shaft 1 and the outer shuttle rotate in the same direction. Under the action of the cam 22 and the return spring 33 for opening the shuttle, the driving shaft 3 for opening the shuttle moves linearly back and forth. 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 rotary hook. Scars appear.

Claims (10)

1. a ultrahigh speed embroidery machine, comprise main shaft (2) and the rotary shuttle shaft vertical with this main shaft (1), the head end of described rotary shuttle shaft (1) is provided with rotating shuttle (10), tail end is provided with rotating shuttle gear (11), described main shaft (2) is provided with mainshaft gear (20) and engages with rotating shuttle gear (11) and drive rotary shuttle shaft (1) and rotating shuttle (10) to rotate, it is characterized in that: be provided with bottom line sense base (40) at the rear side of rotating shuttle (10), upper hinged foundation line induction actuating strut (41) of described bottom line sense base (40), torsion spring (402) is provided with between described bottom line induction actuating strut (41) and bottom line sense base (40), described rotary shuttle shaft (1) side be arranged in parallel one bottom line induction action shaft (4), described bottom line induction action shaft (4) activity is located in bottom line induction action shaft sleeve (49), described bottom line induction action shaft sleeve (49) and bottom line are responded between action shaft (4) and are provided with action shaft back-moving spring (48), described main shaft (2) is provided with bottom line induction driving cam (21) and responds to the tail end effect of action shaft (4) with bottom line, the head end of described bottom line induction action shaft (4) is provided with the head end effect that Actuator Division and bottom line respond to actuating strut (41), bottom line (103) is blocked in the tail end of bottom line induction actuating strut (41), the movement locus of bottom line induction actuating strut (41) is provided with bottom line broken string inductor (45), described rotary shuttle shaft (1) opposite side be arranged in parallel and one opens shuttle driving shaft (3), described main shaft (2) is provided with out shuttle driving cam (22) and drives and open shuttle driving shaft (3) and move vertically, describedly open shuttle driving shaft (3) activity and be located at out in shuttle shaft sleeve (34), described open shuttle shaft sleeve (34) and open between shuttle driving shaft (3) be provided with out shuttle back-moving spring (33), described shuttle driving shaft (3) head end of opening is provided with out shuttle hook (31) and interior shuttle (101) and act on and drive interior shuttle to rotate clockwise.

2. a kind of ultrahigh speed embroidery machine according to claim 1, is characterized in that: described bottom line sense base (40) is provided with at least two adjustment holes (401), and the kink of one end snaps in adjustment hole.

3. a kind of ultrahigh speed embroidery machine according to claim 1, is characterized in that: described Actuator Division comprises start seat (43), described start seat top is provided with start head (44).

4. a kind of ultrahigh speed embroidery machine according to claim 3, is characterized in that: described start head (44) is provided with bearing or roller.

5. a kind of ultrahigh speed embroidery machine according to claim 3, is characterized in that: the lower rotation of described start seat (43) is located at bottom line induction action shaft (4) and is gone up and fixed by hooping structure.

6. a kind of ultrahigh speed embroidery machine according to claim 1, is characterized in that: described bottom line induction action shaft (4) tail end is provided with roller head (47), and described roller head is bearing or roller.

7. a kind of ultrahigh speed embroidery machine according to any one of claim 1 to 6, it is characterized in that: described in drive shuttle hook (31) and be installed on out on shuttle seat (32), described in open shuttle seat and be provided with hooping structure (321) and be connected with the head end opening shuttle driving shaft.

8. a kind of ultrahigh speed embroidery machine according to claim 7, it is characterized in that: described in drive shuttle hook (31) and comprise and open shuttle head (311) towards rotating shuttle, described in open shuttle head be provided with promote in shuttle rotate open shuttle inclined-plane (3111).

9. a kind of ultrahigh speed embroidery machine according to claim 8, it is characterized in that: described in drive shuttle hook and also comprise out shuttle plate (310), described shuttle plate of opening is L-type, describedly open shuttle plate side and Kai Suo seat is fixed, described in open shuttle head (311) and be provided projectingly on out shuttle plate end side.

10. a kind of ultrahigh speed embroidery machine according to claim 8, is characterized in that: described in open shuttle driving shaft tail end be provided with bearing or roller (30) coordinates with the outer peripheral face opening shuttle driving cam (22).