KR102504543B1 - Pattern sewing machine - Google Patents

Abstract

The present invention relates to a pattern sewing machine, and particularly, for an upper try clamping device of a pattern sewing machine which couples the upper try with a support plate, which is mounted on the pattern sewing machine moved in X and Y directions, wherein a sewing needle sews along a pattern hole of the upper try moved in X and Y directions along with the support plate to obtain sewing lines of desire patterns, provided is an upper try clamping device of a pattern sewing machine which couples actuators with both side units in a front of the support plate, couples clamping pieces with both sides in a lower part of the actuator, thereby clamping and unclamping fixed pieces coupled with the upper try by operations of the actuators.

Description

Upper tri-clamping device of pattern sewing machine {PATTERN SEWING MACHINE}

The present invention relates to a pattern sewing machine, and more particularly, a sewing needle along the pattern hole of the upper tri which is moved in the X, Y axis directions together with the support plate by coupling an upper try to a support plate mounted on the pattern sewing machine and moved in the X, Y axis directions. In the upper tri clamping device of the pattern sewing machine, which can obtain a desired pattern by sewing, the actuators are coupled to both sides of the front side of the support plate, and the clamping pieces are coupled to both sides of the lower side of the actuator. It is designed to clamp and unclamp the coupled fixing pieces, and the clamping pieces of the actuator coupled to both sides of the lower side of the support plate can quickly and firmly clamp and unclamp the fixing pieces of the upper tri by pneumatic pressure. can be moved precisely along the set path without errors, and the upper try of a new pattern can be exchanged quickly and accurately by the quick clamping and unclamping action of the clamping pieces, improving work efficiency. As a result of rotating the pinion while moving the rack gear together with the piston moved to the rack, the piston and rack gear coupled to the other side always move in the opposite direction, so the clamping pieces on both sides connected by the rack gear and connecting pieces are either closed or The present invention relates to an upper tri-clamping device for a pattern sewing machine that can be widened to increase reliability of operation by accurate mechanical operation and to minimize a failure rate.

In the prior art, there is a previously filed and published Publication No. 10-2003-0046822 entitled "sewing material fixing device of sewing machine".

The above prior art is "Claim 2: an upper feed plate for pressing the sewing material, a lower feed plate for fixing the sewing material in contact with the upper feed plate, a feed bracket, and an upper feed plate coupled to the feed bracket It consists of an operating means for moving in the vertical direction and an upper feed plate bracket for coupling the upper feed plate to the operating means, and the operating means is an air slide table."

That is, in the prior art, the number of components for moving the upper feed plate is very small compared to the prior art, and the volume can be greatly reduced, and the structure is simple and the assembly is easy due to the reduced number of parts. It is easy and can shorten the assembly time, so it has the effect of improving productivity, and also has the effect of greatly reducing noise and vibration due to a simple configuration, and also has the effect of minimizing the steps to operate the upper feed plate, so it is fast It is an invention to the effect that it can operate.

However, in the prior art, the upper feed plate 23 is connected to the upper feed bracket 22 using screws.

Therefore, it takes a lot of time to replace the upper feed plate 23, which needs to be frequently replaced according to a new pattern, and has cumbersome and inconvenient problems such as unscrewing and tightening screws.

The purpose of the present invention to solve and supplement these conventional problems,

The clamping pieces of the actuator coupled to both sides of the lower part of the support plate can quickly and firmly clamp and unclamp the fixing pieces of the upper tri by pneumatic pressure, so that the upper tri can be accurately moved along the set path without errors and the clamping pieces can be moved quickly. By clamping and unclamping action, it is possible to quickly and accurately replace the upper try of a new pattern, thereby improving work efficiency, and rotating the pinion while moving the rack together with the piston moved by pneumatic pressure in the cylinder of the operating chamber. As a result of this, the piston and rack gear coupled to the other side always move in the opposite direction, so the clamping pieces on both sides connected by the rack gear and connecting pieces can be closed or widened, so the reliability of operation can be increased by accurate mechanical operation. It serves the purpose of minimizing the failure rate.

In order to achieve the above objects, the present invention,

By combining the upper tri with the support plate mounted on the pattern sewing machine and moving in the X, Y axis directions, the sewing needle sews along the pattern ball of the upper tri which moves in the X, Y axis directions together with the support plate to obtain the desired pattern of sewing lines. In the upper tri-clamping device of the pattern sewing machine, actuators are coupled to both front sides of the support plate and clamping pieces are coupled to both lower sides of the actuator to clamp and unclamp the fixing pieces coupled to the upper tri by the operation of the actuators If it is possible to achieve the objects of the present invention.

In the present invention thus formed, the clamping pieces of the actuator coupled to both sides of the lower side of the support plate can quickly and firmly clamp and unclamp the fixing pieces of the upper tri by pneumatic pressure, so that the upper tri is accurately moved along the set path without errors have an effect that can be

Thus, the present invention has an effect of improving work efficiency by rapidly and accurately exchanging the upper trie of a new pattern by the rapid clamping and unclamping action of the clamping pieces.

In the present invention as described above, as a result of rotating the pinion while moving the rack gear together with the piston moved by pneumatic pressure in the cylinder of the operating chamber, the piston and rack gear coupled to the other side always move in opposite directions. Since the clamping pieces on both sides connected by the rack gear and connecting pieces can be closed or opened, the reliability of operation can be increased by accurate mechanical operation and the failure rate can be minimized.

1 is a perspective view for explaining the mounting state of the upper tri-clamping device of the present invention
2 is a view for explaining the operation of clamping the upper tri in the upper tri clamping device of the present invention
Figure 3 is a front cross-sectional view for explaining the actuator configuration of the upper tri-clamping device of the present invention
Figure 4 is a bottom view for explaining the configuration of the clamping piece of the upper tri-clamping device of the present invention
5 is a plan view for explaining the configuration and operation of the actuator of the upper tri-clamping device of the present invention
6 is a view for explaining a state in which the upper tri is clamped in the upper tri clamping device of the present invention
Figure 7 is a front cross-sectional view for explaining the actuator action of the upper tri-clamping device of the present invention
8 is a bottom view for explaining the clamping piece action of the upper tri-clamping device of the present invention
Figure 9 is a plan view for explaining the actuator configuration and operation of the upper tri-clamping device of the present invention

The configuration of the present invention will be described in detail with reference to the accompanying drawings.
The upper tri 104 is coupled to the support plate 103 mounted on the pattern sewing machine 101 and moved in the X and Y axis directions, and the pattern of the upper tri 104 moves in the X and Y axis directions together with the support plate 103 In the upper tri-clamping device of the pattern sewing machine in which the sewing needle 102 sews along the ball to obtain a sewing line of a desired pattern,
Actuators 111 coupled to both front sides of the support plate 103,
Clamping pieces 121 coupled to both lower sides of the actuator 111 to clamp and unclamp the fixing pieces 105 coupled to the upper tri 104 by the operation of the actuators 111,
Cylinders 113 formed side by side on the front and rear sides of the actuator 111 to selectively receive external air pressure from the supply hose 122 to operate the clamping pieces 121,
Pistons 114 coupled to the inside of the cylinders 113 and moving forward and backward by air pressure flowing into the cylinders 113;
rack gears 115 connected to the other side of the pistons 114 and symmetrically installed side by side in the front and rear directions of the operating chamber of the actuator 111;
A pinion 117 installed on the central axis 116 of the operating chamber 112 engaged with the rack gears 115 installed symmetrically so that the rack gears 115 can move in opposite directions, and ,
The lower part of each rack gear 115 located in the operation chamber 112 so that the clamping pieces 121 can be moved to be closed or widened together with the rack gear 115 moving in opposite directions to each other. Connecting pieces 118 connecting the upper portions of the clamping pieces 121 at predetermined intervals,

Equipped with discharge holes 119 formed in the cylinders 113 for discharging air compressed in the cylinder 113 to the outside when the piston 114 moves for smooth movement of the piston 114 moved by the pneumatic pressure is a composition

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The operation of the present invention thus formed is described as follows.

Figure 1 is a perspective view for explaining the mounting state of the upper tri clamping device of the present invention, clamping the upper tri 104 of the new pattern to the support plate 103 of the pattern sewing machine 101 equipped with sewing needles 102 As shown in FIG.

At this time, the clamping pieces 121 coupled to the bottom of the actuator 111 by a pair on both sides maintain an unclamping state, that is, a state of being apart from each other, as shown in FIG. 4 .

In the state where the clamping pieces 121 are spread as described above, as shown in FIG. 3, the fixing piece 105 coupled to the upper tri 104 is inserted between the clamping pieces 121, and then the clamping of the pattern sewing machine 101 begins. When the button (not shown) is pressed, air pressure is applied to the inside of the rear cylinder 113 through the rear supply hose 122 of the actuator 111 by the instruction of the control box, and the rear piston 114 inside the rear cylinder 113 will advance

In addition, the air filled inside the rear cylinder 113 in the direction in which the rear piston 114 moves by the advancement of the rear piston 114 is discharged to the outside through the discharge hole 119 formed in the rear cylinder 113. At the same time, the rear piston 114 moves forward smoothly.

The rear rack gear 115 connected to the piston 114 by the advancement of the rear piston 114 also moves inside the operating chamber 112 together with the rear piston 114, and is engaged with the inside center of the operating chamber 112. The pinion 117 on the shaft 116 also rotates.

In addition, the rotation of the pinion 117 moves the front rack gear 115, which is symmetrically positioned with the rear rack gear 115 and meshed with the pinion 117.

The front piston 114 connected thereto by the backward movement of the front rack gear 115 also moves backward in the front cylinder 113 of the actuator 111, while supplying the remaining air inside the front cylinder 113 to the front supply hose 122 ) is pushed through.

Therefore, the clamping piece 121 on one side connected by the connecting piece 118 and the lower part of the rear rack gear 115 moving forward moves forward, and the lower part of the front rack gear 115 moving backward Since the clamping piece 121 on the other side connected by the connecting piece 118 moves backward, it eventually causes the two clamping pieces 121 to be pinched as shown in FIGS. 5 to 9, which is located The fixing piece 105 of the upper trie 104 can be firmly clamped as shown in FIGS. 6 to 8 .

On the other hand, when replacing the upper trie 104 clamped by the clamping pieces 121 with the upper trie 104 of a different pattern, the clamping pieces 121 should be unclamped. At this time, as described above, Unclamping is achieved by the opposite action.

That is, when the unclamping button (not shown) of the pattern sewing machine 101 is pressed, air pressure is applied to the inside of the front cylinder 113 through the front supply hose 122 of the actuator 111 according to the instructions of the control box, and the front cylinder (113) advances the internal piston (114).

In addition, the air filled in the cylinder 113 in the direction in which the front piston 114 moves by the advancement of the front piston 114 is discharged to the outside through the discharge hole 119 formed in the front cylinder 113. At the same time, the front piston 114 moves forward smoothly.

The front rack gear 115 connected to the front piston 114 by the advancement of the front piston 114 also moves inside the operation chamber 112 together with the front piston 114, and the inside of the operation chamber 112 engaged therewith. The pinion 117 on the central axis 116 is rotated in reverse.

In addition, the reverse rotation of the pinion 117 causes the rear rack gear 115, which is symmetrically positioned with the front rack gear 115 and meshed with the pinion 117, to move backward.

The rear piston 114 connected thereto by the backward movement of the rear rack gear 115 also moves backward in the rear cylinder 113 of the actuator 111, supplying the remaining air inside the rear cylinder 113 to the rear supply hose 122 ) is pushed through.

Therefore, the lower part of the forward rack gear 115 and the other clamping piece 121 connected by the connection piece 118 move forward and the lower part of the rear rack gear 115 moves backward Since the clamping piece 121 on one side connected by the connection piece 118 moves backward, it eventually causes the two clamping pieces 121 to open as shown in FIGS. 9 to 5, and the upper side positioned Since the fixing piece 105 of the try 104 can be unclamped as shown in FIGS. 2 to 5 , the upper try 104 of a new pattern can be quickly and firmly replaced.

101-pattern sewing machine 102-sewing needle
103 - support plate 104 - upper tri
105 - fixture 111 - actuator
112 - operating room 113 - cylinder
114-Piston 115-Lack Gear
116 - central axis 117 - pinion
118-connecting flight 119-exhaust hole
121-clamping piece 122-supply hose

Claims (3)

The upper tri 104 is coupled to the support plate 103 mounted on the pattern sewing machine 101 and moved in the X and Y axis directions, and the pattern of the upper tri 104 moves in the X and Y axis directions together with the support plate 103 In the upper tri-clamping device of the pattern sewing machine in which the sewing needle 102 sews along the ball to obtain a sewing line of a desired pattern,
Actuators 111 coupled to both front sides of the support plate 103,
Clamping pieces 121 coupled to both lower sides of the actuator 111 to clamp and unclamp the fixing pieces 105 coupled to the upper tri 104 by the operation of the actuators 111,
Cylinders 113 formed side by side on the front and rear sides of the actuator 111 to selectively receive external air pressure from the supply hose 122 to operate the clamping pieces 121,
Pistons 114 coupled to the inside of the cylinders 113 and moving forward and backward by air pressure flowing into the cylinders 113;
rack gears 115 connected to the other side of the pistons 114 and symmetrically installed side by side in the front and rear directions of the operating chamber of the actuator 111;
A pinion 117 installed on the central axis 116 of the operating chamber 112 engaged with the rack gears 115 installed symmetrically so that the rack gears 115 can move in opposite directions, and ,
The lower part of each rack gear 115 located in the operation chamber 112 so that the clamping pieces 121 can be moved to be closed or widened together with the rack gear 115 moving in opposite directions to each other. Connecting pieces 118 connecting the upper portions of the clamping pieces 121 at predetermined intervals,
Equipped with discharge holes 119 formed in the cylinders 113 for discharging air compressed in the cylinder 113 to the outside when the piston 114 moves for smooth movement of the piston 114 moved by the pneumatic pressure Upper tri-clamping device of the pattern sewing machine, characterized in that.
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