KR100790440B1 - Device for supplying an embroidery thread - Google Patents

Abstract

An apparatus for supplying embroidery thread is provided to supply the thread smoothly, by selectively supplying a specific strand of thread to an embroidery machine using an air pressure so as to enlarge the degree of vacuum. A manifold(100) has a plurality of thread supply holes(110) and an air pressure hole(120). A plurality of branch paths(130), which communicate from the air pressure hole to the thread supply holes, are formed in the manifold. A plurality of valve units(200) are installed on one face of the manifold, wherein the valve units open and close the branch paths selectively according to an electric signal. A vacuum induction unit(300) is composed of an inlet pipe(310), a connection pipe, and an outlet pipe, which are serially connected through each thread supply hole. External diameters of the inlet pipe, the connection pipe, and the outlet pipe are uniform, and internal diameters of the inlet pipe, the connection pipe, and the outlet pipe are sequentially expanded.

Description

Device for supplying an embroidery thread

1 is a view showing a thread supply apparatus for a conventional embroidery machine,

Figure 2 shows a thread supply block applied to the thread supply apparatus for a conventional embroidery machine

       Cross-section,

3 is a perspective view showing a thread supply apparatus for an embroidery machine of the present invention;

4 is a plan view showing a thread supply apparatus for an embroidery machine of the present invention;

5 is a right side view showing the thread supplying apparatus for the embroidery machine of the present invention;

Fig. 6 shows a vacuum induction part of the thread supply apparatus for the embroidery machine of the present invention.

       Exploded View,

7 is a cross-sectional view showing a vacuum induction part of the thread supply apparatus for the embroidery machine of the present invention;

Figure 8 shows another embodiment of the thread feeder for the embroidery machine of the present invention

       Right Side View,

9 is a schematic configuration diagram of a thread supply apparatus for an embroidery machine of the present invention;

Figure 10 shows a control valve for the thread supply apparatus for the embroidery machine of the present invention

        Cross-section.

<Explanation of symbols for the main parts of the drawings>

100: manifold 110: seal supply hole

120: pneumatic supply hole 130: branch pipe

140: high flow rate pipe 200: valve mechanism

300: vacuum induction part 310: inlet pipe

311, 321: pin 320: connection pipe

322, 332: Distribution grooves 323, 333: Through grooves

330: outlet pipe 400: control valve

410: elastomer 420: spool

430: cylinder 440, 450: hermetic ring

T: Thread

The present invention relates to a thread supplying device for embroidery machines, in particular, to improve the embroidery machine supplying machine for selectively supplying a specific thread among a plurality of threads by using pneumatic to form a large degree of vacuum even in a relatively small size As a device for more smooth supply, it relates to a device that can maximize the maintenance and convenience of the operator can more effectively supply a relatively thick and heavy thread because of the twist as well as the general embroidery machine thread as well as gold thread.

In general, an embroidery machine refers to a machine for embroidering various patterns on fabric, and recently, an automatic embroidery machine for embroidering a desired shape by a pre-input program using various colored threads has been widely used.

1 is a view showing a conventional thread supply apparatus for a embroidery machine, and a conventional thread supply apparatus for a conventional embroidery machine disclosed in Korean Patent Publication No. 0639351 is provided on a fixed frame 5 as shown in FIG. 1. The yarns 3 of different colors from the plurality of failures 13 are supplied by the thread supply section 10 to the needle work section 70 via the guide tube assembly 50, thereby providing a substantial effect on the needle work section 70. Embroidery will be released.

At this time, the thread supply unit 10 selectively selects the thread 3 having a specific color by using a pneumatic pressure program among the threads 3 of various colors, and the guide tube assembly 50 and the needle work unit 70. ) Is provided with a thread supply block 30 for supply.

2 is a cross-sectional view showing a thread supply block applied to a conventional thread supply apparatus for a embroidery machine, the thread supply block 30 applied to a conventional thread supply apparatus for a embroidery machine, as shown in FIG. After inserting the yarns 3 of different colors into the plurality of yarn supply pipes 32 provided in the above), the specific air spraying of the plurality of air injection paths is performed through opening and closing means 37 (hereinafter referred to as solenoid valves) including solenoids. By selectively opening and closing the furnace, the thread 3 of a specific color is automatically supplied to the lower needle work part (see 70 in FIG. 1).

However, the solenoid valve is applied to the thread supply block provided in the thread supply device for the conventional embroidery machine to control the supply of the thread to the needle work unit using pneumatic pressure. However, such a solenoid valve has a maximum flow rate in proportion to its size. Because of the limitation, when a solenoid valve with a small flow rate is applied for miniaturization of the thread supply part including the thread supply block, the pneumatic pressure for sending the thread to the needle work part is insufficient, so that the thread is not supplied smoothly. When the solenoid valve of a large flow rate is applied to achieve such a problem, there is a problem that these two problems are always compatible because the miniaturization of the seal supply part is not satisfied.

In addition, due to the structural characteristics of the thread supply pipe of the thread supply block, the degree of vacuum for supplying the thread is insufficient and there is a twist like gold yarn, so that the supply of the relatively thick and heavy thread is not smoothly performed, Since it must always be inserted into the thread supply pipe of the thread supply block, there is a technical problem that the convenience of the operator and the merchandise for the device is greatly reduced.

The present invention is to solve the above problems, it is possible to form a larger vacuum degree smaller than the existing device, as well as the thread for general embroidery machines, as well as twisted like gold yarn, supplying a relatively thick and heavy thread more effectively It is possible to provide a thread supply device for the embroidery machine that can maximize the maintenance and convenience of the operator.

The present invention includes a manifold having a plurality of seal supply holes formed therethrough, a pneumatic supply hole formed at one side thereof, and a plurality of branch conduits communicated from the pneumatic supply hole to the seal supply hole therein; A plurality of valve mechanisms installed on one surface of the manifold to selectively open and close each branch line according to an electrical signal; An inlet pipe, a connecting pipe, and an outlet pipe having a predetermined outer diameter and sequentially expanded in diameter are inserted into and connected in series through the seal supply hole, and each end of the inlet pipe and the connecting pipe is inserted into the connecting pipe. And a fin portion extending into the outlet pipe, and the outer periphery of the connection pipe and the outlet pipe is formed by a vacuum induction portion having a distribution groove in the longitudinal direction and a through groove in the normal direction.

Figure 3 is a perspective view showing the thread supply apparatus for the embroidery machine of the present invention, Figure 4 is a plan view showing the thread supply apparatus for the embroidery machine of the present invention, Figure 5 is a right side view showing the thread supply apparatus for the embroidery machine of the present invention. to be.

6 is an exploded perspective view showing a vacuum induction part of the thread supply apparatus for a embroidery machine of the present invention, and FIG. 7 is a cross-sectional view showing the vacuum induction part of the thread supply apparatus for a embroidery machine of the present invention.

An embodiment of the present invention will be described in detail with reference to the accompanying drawings.

The thread supplying apparatus for the embroidery machine of the present invention is composed of a manifold 100, a valve mechanism 200, and a vacuum induction part 300, as shown in FIGS. 3 to 7. It is a device that supplies to the needle work part by using pneumatic pressure. It is smaller than the existing one and generates a large degree of vacuum by using its structural characteristics, and it is twisted like gold yarn, so it can supply relatively thick and heavy thread smoothly and stably. It is a basic feature.

First, the manifold 100 is made of a block of polyhedron, and a plurality of seal supply holes 110, pneumatic supply holes 120, and branch conduits 130 are formed therein.

At this time, the thread supply hole 110 and the branch line 130 is formed in a number corresponding to the number of the yarn to be supplied, in this embodiment a total of 12 different manifolds for supplying a different thread An example will be described below.

Of course, the shape of the manifold 100 may be changed according to the number of yarns to be supplied.

The thread supply holes 110 formed through the upper and lower sides of the manifold 100 are holes through which the thread supplied to the needle work part from the upper side passes through the upper side of the manifold 100. In this embodiment, a total of 12 thread supply holes are provided. 110 is formed in one manifold 100, and the vacuum induction unit 300, which will be described later, is inserted and assembled in the seal supply hole 110, respectively.

In addition, a pneumatic supply hole 120 is formed at one side of the manifold 100 so as to receive pneumatic pressure from the outside, and the pneumatic supply hole 120 allows a connector to easily connect and disconnect a pneumatic hose. Etc. can be installed.

In addition, a plurality of branch conduits 130 communicating with the seal supply hole 110 from the pneumatic supply hole 120 are formed in the manifold 100.

The branch conduit 130 is branched in parallel to the twelve conduits corresponding to the number of seals from the pneumatic supply hole 120, and then through the valve mechanism 200 to be described later, each of the seal supply holes 110 It is in communication with the interruption of).

Accordingly, pneumatic pressure acts on the seal supply hole 110 from the pneumatic supply hole 120 via the branch conduit 130, and whether or not the pneumatic action on each seal supply hole 110 is provided at the interruption thereof. It is interrupted by the valve mechanism 200.

The valve mechanism 200 having such a function is installed side by side on the upper side of the figure of the manifold 100, two or more on one surface of the manifold 100 as shown to reduce the installation area It is preferable to arrange them in zigzag form in a row.

In addition, the valve mechanism 200 selectively opens and closes each branch conduit 130 according to an electric signal of a controller (not shown) provided in the embroidery machine to supply a specific thread according to a program input to the embroidery machine.

Thus, in order to control the branch pipe 130 accurately and quickly according to an electrical signal, it is preferable in the present invention that the valve mechanism 200 is composed of a solenoid valve.

Finally, the vacuum induction part 300 positioned in the seal supply hole 110 of the manifold 100 has an outer diameter corresponding to the inner diameter of the seal supply hole 110 as shown in FIGS. 6 and 7. And consists of an inlet pipe 310, a connecting pipe 320, and an outlet pipe 330 having a sequentially expanded inner diameter.

That is, the inlet pipe 310, the connecting pipe 320, and the outlet pipe 330 each have a constant inner diameter, but the inner diameter of the inlet pipe 310 <the inner diameter of the connecting pipe 320 <the outlet pipe 330. It is formed in the inner diameter of ', the inlet pipe 310 is located on the side in which the thread (T) is sequentially connected in series, the outlet pipe 330 is located on the side of the thread (T) exit.

At the bottom of the drawing, the inlet pipe 310 and the connecting pipe 320 are formed with fin portions 311 and 321 extending to maintain the same inner diameter, respectively. It is inserted into the connection pipe 320 and the outlet pipe 330 connected to the lower side.

In addition, distribution grooves 322 and 332 having a predetermined depth in the longitudinal direction are formed on one outer circumference of the connection pipe 320 and the outlet pipe 330, respectively. The through grooves 323 and 333 are formed at the upper end in the normal direction toward the axis center thereof.

That is, the distribution grooves 322 and 332 form a conduit together with the inner wall of the seal supply hole 110 as shown in FIG. 7 so that the pneumatic pressure supplied from the branch conduit 130 is longitudinally (lower in the drawing). The through grooves 323 and 333 form a conduit together with the inlet pipe 310 or the connecting pipe 320 positioned above the normal to direct the pneumatic pressure supplied from the branch conduit 130. (In the right direction on the drawing) will be guided.

At this time, the pneumatic pressure introduced into the connection pipe 320 and the outlet pipe 330 through the through grooves 323 and 333 extends from the inlet pipe 310 and the connection pipe 320 located above. By being guided to the lower side of the outer periphery of the 321, negative pressure is formed inside the pins 311 and 321, so that the thread T located at the upper side thereof is sucked with a high degree of vacuum, and further into the needle work unit at the lower side thereof. It will supply smoothly.

8 is a right side view showing another embodiment of the thread supply apparatus for the embroidery machine of the present invention, Figure 9 is a schematic configuration diagram of the thread supply apparatus for the embroidery machine of the present invention, Figure 10 is for the embroidery machine of the present invention It is sectional drawing which shows the control valve with respect to a seal feeder.

Particularly, in the present invention, when it is twisted like a gold thread to form a higher degree of vacuum to supply a relatively thick and heavy thread, as shown in FIGS. 8 to 10, the pneumatic supply hole ( The high flow rate pipe 140 communicated with the predetermined thread supply hole 110f from the 120 is formed in communication, and the spool 420 carried in one direction by the elastic body 410 is interrupted at the high flow rate pipe 140. It is most preferable that a control valve 400 is provided to selectively open and close the high flow rate pipe 140 by a predetermined valve mechanism 200f.

In other words, in addition to the plurality of branch conduits 130 in the manifold 100, an additional high flow conduit 140 connected to the predetermined seal supply hole 110f from the pneumatic supply hole 120 is formed, and the high flow rate An additional control valve 400 is added to the pipe line 140 to stop, and the control valve 400 is configured to be opened and closed by a predetermined valve mechanism 200f.

The control valve 400 includes a spool 420 elastically supported in one direction by the elastic body 410 in the cylinder 430. As shown in FIG. 10 (a), the control valve 400 is Although the pneumatic pressure does not work from the pneumatic supply hole 120 to the seal supply hole 110f by maintaining the closed state, as shown in FIG. 10B, a specific valve mechanism 200f is opened to open the branch conduit 130. When the pneumatic pressure acts on the control valve 400, the elastic body 410 elastically contracts, so that the spool 420 opens the high flow rate pipe 140 so that the pneumatic pressure through the high flow rate pipe 140 is increased. As a result, the vacuum induction part 300f may form a greater degree of vacuum.

For example, assuming that the thread supplying device for the embroidery machine of the present invention selectively supplies 11 general threads and one gold thread among 12 types of threads, the manifold 100 additionally has one high flow rate pipe ( 140 and the control valve 400 is added.

That is, in the case of a general seal, the maximum flow rate of the valve mechanisms 200a to 200e (200g to 200l) is limited as shown in FIG. 9 to form a high vacuum degree only by the structure of the vacuum induction parts 300a to 300e (300g to 300l). However, in the case of gold yarn, the separate control valve 400 supplies the air pressure of a large flow rate to the vacuum induction part 300f without being limited to the maximum flow rate of the valve mechanism 200f, and thus, in the vacuum induction part 300f. It is possible to form a high degree of vacuum.

Hereinafter, the operation of the present invention will be described with reference to FIGS. 3 to 10.

First, suppose that the thread supplying apparatus for the embroidery machine of the present invention supplies a total of 12 different kinds of threads to pneumatically illustrated needle work units using pneumatic, but supplies 11 general threads and one gold thread. A total of 12 seal supply holes 110a-110l and branch conduits 130 are formed in the manifold 100, and a total of 12 valve mechanisms 200a-200l are provided on one surface of the manifold 100. In the seal supply holes 110a to 110l, a total of 12 vacuum induction units 300a to 300l are assembled one by one.

In addition, a single high flow rate pipe 140 and a control valve 400 are provided in the manifold 100 to supply gold yarn, and from the valve mechanism 200f to control the control valve 400. Branch line 130 is formed between the control valve 400.

When a separate pneumatic hose is connected to the pneumatic supply hole 120 in such a state, a constant pneumatic pressure acts in the branch conduit 130 of the manifold 100.

At this time, since the valve mechanism 200 connected to the interruption of the branch conduit 130 is kept in a closed state, the pneumatic pressure in the branch conduit 130 does not act until the seal supply hole 110, and each seal It is not necessary to be located in the vacuum induction part 300, but may be located above each vacuum induction part 300 as shown in FIG.

In this state, when the specific thread is supplied to the needle work unit according to a program previously input to the automatic embroidery machine, the specific valve mechanism 200 is opened among the twelve valve mechanisms 200a to 200l by a controller not shown.

Accordingly, the pneumatic pressure introduced into the manifold 100 through the pneumatic supply hole 120 is sent to the seal supply hole 110 through the branch conduit 130, and the seal supply hole 110 in FIG. As described above, pneumatic pressure is supplied between the inlet pipe 310 and the connection pipe 320 of the vacuum induction part 300.

Pneumatic pressure is lowered between the inlet pipe 310 and the connecting pipe 320 through the distribution groove 322 and the other into the through groove 323.

First, the pneumatic pressure entering the inside of the connecting pipe 320 through the through groove 323 is sent downward through the space between the outer peripheral surface of the pin portion 311 of the inlet pipe 310 and the inner peripheral surface of the connecting pipe 320. A negative pressure is generated in the pin part 311, and the seal on the inlet pipe 310 is sucked into the vacuum induction part 300 by the negative pressure.

At this time, since the inner diameter of the connection pipe 320 is larger than the inner diameter of the inlet pipe 310, the degree of vacuum is generated more.

In particular, the pneumatic pressure guided downward through the distribution groove 322 to enter the interior of the outlet pipe 330 through the through groove 333 also the outer peripheral surface of the fin 321 of the connection pipe 320 and the inner peripheral surface of the outlet pipe 330. Negative pressure is also generated in the fin part 321 as it is sent downward through the interspace, and thus the negative pressure generated between the connecting pipe 320 and the outlet pipe 330 and the inlet pipe 310 and the connecting pipe ( The negative pressure generated between the 320 is combined to work together so that the thread on the inlet pipe 310 is more strongly sucked into the vacuum induction part 300 to supply the thread to the needle work part.

In this case, since the inner diameter of the outlet pipe 330 is larger than the inner diameter of the connection pipe 320, the degree of vacuum is further generated.

Then, the pneumatic pressure is not lowered down through the distribution groove 322 into the through groove 333 is taken out through the distribution groove 332 to the lower end of the outlet pipe 330.

In other words, in the present invention, a high degree of vacuum is formed between the inlet pipe 310 and the connecting pipe 320 and through the negative pressure generated in the connecting pipe 320 and the outlet pipe 330 to the lower needle work part. By smoothly supplying the yarn, it is possible to accurately supply the yarn simply by placing the yarn on the vacuum induction part 300 without having to always insert the seal into the vacuum induction part 300 as in the conventional art.

If the yarn is twisted like a gold yarn to supply a relatively thick and heavy thread, the valve mechanism 200f corresponding to the gold yarn is opened.

Accordingly, the pneumatic pressure introduced into the manifold 100 through the pneumatic supply hole 120 is sent to the control valve 400 through the branch conduit 130, the control valve 400 is provided in the cylinder 430 The control valve 400 is moved by moving the spool 420 held in the right direction as shown in FIG. 10 (a) by the elastic body 410 to the left side in the drawing by pneumatic pressure as shown in FIG. Will be opened.

At this time, a plurality of hermetic rings 440 and 450 are provided between the cylinder 430 and the spool 420 to prevent pneumatic leakage.

Thereafter, the pneumatic pressure passing through the control valve 400 is sent to the thread supply hole 110 through the high flow rate pipe 140 to generate a stronger vacuum, so that the gold yarn can be smoothly supplied to the needle work unit as described above. .

At this time, the pneumatic pressure sent to the seal supply hole 110 is to act as the pneumatic pressure supplied to the pneumatic supply hole 120 of the manifold 100, the seal supply hole for supplying the general seal described above While the air pressure is limited to a predetermined flow rate or less by passing through the valve mechanism 200, the pneumatic pressure passing through the high flow rate pipe 140 and the control valve 400 is not limited to the flow rate of the valve mechanism 200. Since the pneumatic pressure supplied to the pneumatic supply hole 120 of the manifold 100 is intact, it is possible to form a larger vacuum degree, it is twisted like gold yarn, so that the supply of a relatively thick and heavy thread can also be performed more effectively. It is an invention with an excellent advantage that it can.

The above embodiment is an example for explaining the technical idea of the present invention in detail, and the scope of the present invention is not limited to the above drawings and embodiments.

The present invention as described above can form a larger degree of vacuum than a small size, compared to the existing device, it is not only a thread for general embroidery machines, but also twisted like gold yarn, so that the supply of relatively thick and heavy thread can also be more effectively maintained. It is an invention that can maximize the repair and convenience.

Claims (4)

A manifold in which a plurality of seal supply holes are formed through, a pneumatic supply hole is formed at one side, and a plurality of branch conduits communicated from the pneumatic supply hole to the seal supply hole are formed therein; A plurality of valve mechanisms installed on one surface of the manifold to selectively open and close each branch line according to an electrical signal; An inlet pipe, a connecting pipe, and an outlet pipe having a predetermined outer diameter and sequentially expanded in diameter are inserted into and connected in series through the seal supply hole, and each end of the inlet pipe and the connecting pipe is inserted into the connecting pipe. And a fin part extending into the outlet pipe, and a vacuum induction part having a distribution groove in the longitudinal direction and a through groove in the normal direction on the outer circumference of the connection pipe and the outlet pipe. According to claim 1, The manifold has a high flow rate pipe communicating with a predetermined seal supply hole from the pneumatic supply hole is formed, and the high flow rate pipe stop including a spool which is carried in one direction by an elastic body Embroidery thread supply device characterized in that the control valve for selectively opening and closing the high flow rate pipe by the valve mechanism of the provided. The thread supply apparatus for a embroidery machine according to claim 1 or 2, wherein said valve mechanism comprises a solenoid valve. 3. The thread supply apparatus of claim 1 or 2, wherein the valve mechanism is arranged in a zigzag form in two or more rows on one surface of the manifold.

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