KR940007150Y1 - Yarn cutter of winder machine - Google Patents

Abstract

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Description

Yarn cutting device for sewing thread winding machine

1 is a side view showing the overall configuration of the sewing machine winding machine is installed yarn cutting device.

Figure 2 is a perspective view showing the configuration of the yarn cutting device of the present invention.

3 and 4 are explanatory views showing the cutting process of the yarn cutting device.

* Explanation of symbols for main parts of the drawings

300: yarn cutting device 310: support plate

320: pneumatic cylinder 321: piston rod

330: fixed knife 340: movable knife

The present invention relates to a yarn cutting device of a winding machine wound on a bobbin for shipping the sewing thread to the end consumer. Particularly, in the winding process, the sewing thread winding can be automated by mechanically and automatically cutting the yarn without a separate worker. It is about the yarn cutting device of fraud.

Winding machines for winding sewing thread used in sewing work have been developed and used up to now, such a winding machine is installed in the same rotation center by installing the main shaft cooperating with the drive motor and the tailstock that is moved forward and backward to the main shaft side The bobbin is detachably installed between the tailstock and the tailstock. In addition, the bobbin of the yarn supplied from the yarn supply drum is wound around its bobbin to obtain the desired sewing thread. By the way, such a winding machine is completed by the yarn cutting work of the finished product falling between the main shaft and the tailstock by completing the yarn work of the yarn. More specifically, when the finished product finished the yarn work on the spindle and tailstock is separated from the spindle, the yarn supplied from the yarn supply drum is connected to the finished product. Therefore, inevitably cutting the yarn connected between the finished product and the yarn supply drum, such a cutting operation is normally cut by a separate worker with a cutting knife or the like, the yarn connected to the finished product. However, such a cutting operation requires an additional cutting operator, an unnecessary labor cost is increased, and thus there is an uneconomical defect that increases the manufacturing cost. In addition, by cutting the yarn by hand manually, there is a problem of poor workability and poor productivity due to a lot of manual labor and time, and the cutting of mechanically and automatically cutting yarn due to irregular cutting position and poor product quality. Equipment is required.

The present invention is made in consideration of the above circumstances. Its purpose is to provide a simple and effective yarn cutting device for a sewing thread winding machine that does not require a cutting operator.

Another object of the present invention is to provide a yarn cutting device of a sewing thread winding machine to automatically make the cutting work of the yarn to simplify the winding work and improve the workability and productability.

The object of the present invention is achieved by providing a cutting device for cutting the yarn in the winding machine for winding the yarn to be used as sewing thread, that is, cutting the yarn connected between the yarn supply drum and the finished product. The cutting device has a supporting plate composed of a rectangular plate body shape, and a pneumatic cylinder is vertically placed on the upper surface of the supporting plate. Then, the piston rod of the pneumatic cylinder passes through the support plate and is lifted from the lower part of the support plate, and the bottom surface of the support plate is provided with a fixed knife composed of three long and short blades. The piston rod is also provided with a movable knife which is inserted between the fixed knife and cuts the yarn and simultaneously holds both ends of the cut yarn, and the upper and lower sides of the circumferential wall of the pneumatic cylinder are respectively positioned at the maximum ascending and maximum descending positions of the piston rod. A first position sensor and a second position sensor are provided. Therefore, when the signal is completely wound around the bobbin in the control circuit, the movable knife is raised at the same time to engage with the fixed knife to automatically cut the yarn.

Next, embodiments of the present invention will be described in detail with reference to the drawings.

Figure 1 shows a winding machine provided with a yarn cutting device according to the present invention, 100 is the body 100 of the winding machine in the figure. A circular bobbin supply panel 110 is installed on the upper part of the main body 100, and a circular arc for receiving a sliding bobbin (A) which is subsequently dropped from the bobbin supply panel successively in the lower portion of the bobbin supply panel. The supply guide rail 120 is installed.

In addition, the winding portion 130 is installed in the lower portion of the supply guide rail 120 in succession will receive a public bobbin falling from the supply guide rail to perform the winding process of the yarn supplied from the yarn supply unit 200.

The winding unit 130 is installed in the main shaft 131 and the tailstock 132 is a gongbobin (A) is detachable, the lower side of the yarn is finished storage work to temporarily receive the finished product falling from the main shaft ( 133 is provided, and the other side is provided with a yarn guide member 140 for moving the yarn connected between the finished product and the yarn supply unit 200 to a position where the present invention cutting device is installed.

And the yarn cutting device 300 is installed between the yarn guide member 140 and the storage chamber 133, the circular guide member 140 is left, fixed to the fixed shaft 142 fixed to the main body 100, After the installation is movable to the right, the lower end is fixed to the cylinder 141.

Figure 2 shows the yarn cutting device of the present invention. In other words, the yarn cutting device 300 is composed of a support plate 310 and a pneumatic cylinder 320 formed in a flat plate shape that is mounted and fixed to the upper surface plate 134 constituting the upper portion of the wound portion 130. . At this time, the support plate 310 will provide a support force for fixing the yarn cutting device 300 vertically to the top plate.

In addition, the pneumatic cylinder 320 is a piston rod 21 of the pneumatic cylinder 320 to the support plate 310 to elevate from the lower support plate to achieve a cutting process of the yarn, such a pneumatic cylinder 320 is a compressor Will be driven by

The fixed knife 330 is installed downward in the front axis of the bottom of the support plate 310. Its fixed knife 330 is composed of a long and short blade 331 is installed with three sets of appropriate intervals, the interval of the blade provides a receiving space for the movable knife 340 to be described later. .

In addition, the piston rod 321 of the pneumatic cylinder 320 is also provided with a movable knife 340 interlocked with the fixed knife 330 integrally to cooperate with the lifting operation of the piston rod 321 and the piston rod 321. According to the lifting operation will be in contact with the fixed knife 330 will perform a cutting process of the yarn. The movable knife 340 is provided in a horizontal direction in which a pair of blades 341 fitted between the blades 331 of the fixed knife 330 intersect the installation direction of the blade 331 of the fixed knife 330. have.

On the other hand, the first position sensor 410 and the second position sensor 420 are provided on the upper and lower sides of the main wall of the pneumatic cylinder 320 to transfer the sensing circuit to the control circuit. The first and second position sensors 410 and 420 will inform the control circuit of the lifting operation state of the piston rod and drive an air compressor (not shown) to perform the cutting operation of the desired yarn.

In addition, the fixed knife 330 and the movable knife 340 of the yarn cutting device 300 is tightly interlocked with each other is fixed both ends of the yarn cut. In other words, the yarn supply unit 200 and each yarn connected to each of the finished product is completely wound between the blades (331, 341). This question is to obtain the operation of positioning the yarn between the main shaft 131 and the bobbin and the initial operation is made to wind the yarn cut to the outer peripheral wall of the bobbin for the next winding process.

At this time, the movable knife 340 has a bit of occlusal time by engaging with the fixed knife 330, the next signal, when described again if the bobbin is pressed on the main shaft 131, the end of the yarn is buried by the pressing force of the bobbin During the initial rotation of the bobbin, it grabs the end of the yarn and provides a holding force that allows the yarn to be wound around the bobbin.

The operation of the yarn cutting device will now be described with reference to FIGS. 1 and 3, 4.

When the gongbin (A) is supplied to the main shaft 131 through the supply rail 120 from the gongbin supply board 110, the supply completion signal is detected and at the same time the tailstock 132 is advanced in the control unit to move the gongbinbin to the main shaft. Squeeze. At the same time as the installation of the gongbinbin is completed, the control unit rotates the main shaft to perform a desired yarn feeling. And the yarn feeling is the yarn cutting device of the present invention is driven when the process is completed, the yarn feeling is the tailstock 132, which was advanced when the completion signal of the process is given backwards to release the finished product from the main shaft (131). And when it is confirmed that the finished product has been dropped in the storage room 133, the yarn political member 140 leads the yarn which is connected between the yarn supply unit 200 and the finished product to the position where the yarn cutting device 300 is installed. In other words, when the yarn guiding member 140 is moved to the right by moving the cylinder 141, the winding unit 130 is wound around the bobbin in the bobbin, and then the yarn is dropped into the original product storage chamber 133 where the winding is completed. Since the yarn connected to the finished product and the yarn supply unit 200 is caught by the upper ring of the yarn guide member 140, the cylinder 141 is reversed so that the yarn guide member 140 moves to the left along the fixed shaft 142. When the yarn is moved, the yarn is placed on the blade 341 formed on the movable knife 340 of the yarn cutting device 300. The pulled yarn is moved on the upper surface of the blade 341 of the movable knife 340 of the yarn cutting device 300, as shown in FIG. 3, and the yarn drawing operation completion signal of the yarn fixing unit 140 is completed. Is detected, the movable knife 340 of the yarn cutting device 300 is raised by the detection signal, and the movable knife 340 thus raised is engaged with the fixed knife 330 as shown in FIG. Cut it. In other words, the yarn is cut by inserting the blade 341 of the movable knife 340 between the blades 331 of the fixed knife 330. When the yarn is cut in this way, the movable knife does not immediately descend, but remains slightly. When the rising knife 340 is detected by the first position sensor 410, the signal is used to wait for a new ball bobbin waiting for the supply rail. After a certain time, the main shaft will output a drive signal for advancing the tailstock and be mounted as a ball bobbin. At the same time as the completion of the tailstock is completed, the movable knife 340 is returned to its original position by the detection signal of the tailstock. At this time, when the lowering of the movable knife is completed, the second position sensor 42D detects the original movement of the movable knife and detects it. The signal rotates the bobbin feeder and feeds the shadowed bobbin onto the supply rail.

Therefore, the yarn cutting is mechanically and automatically made without a separate worker, thereby reducing unnecessary manpower consumption and improving workability.

Claims (2)

In the sewing thread winding machine having a supply rail, the main shaft and tailstock is installed directly below the supply rail, and the lower one side is provided with a storage room for receiving and storing the finished product wound yarn, between the shrinkage and the storage room A pneumatic cylinder installed in a support plate and having a piston rod which is lifted up or down by a control unit by a control unit; A first position sensor installed above and below the main wall of the pneumatic cylinder to emit an output signal for supplying the air bobbin waiting to the supply rail, and a second position sensor to detect the falling state of the piston rod and to drive the ball bobbin supply panel. Wow; A fixed knife having a long and short blade fixedly installed in front of the bottom of the support plate; The yarn cutting device of the sewing machine winding machine, characterized in that integrally installed on the lower end of the piston rod is equipped with a movable knife for cutting and yarn coupled with the fixed blade according to the lifting operation of the piston rod. The yarn cutting of the sewing thread winding machine according to claim 1, wherein the fixed blade comprises three sets and the movable blade consists of two sets so that the movable blade is fitted to the fixed blade so that both ends of the cut yarn are pinched. Device.