KR20050018685A - Thread feeding apparatus for an automatic embroidering machine - Google Patents

Abstract

PURPOSE: An upper yarn feeding device for an automatic embroidering machine is characterized by being simple and reducing a production cost. CONSTITUTION: An upper yarn feeding device for an automatic embroidering machine comprises: a head stem(7) set a needle work part; a yarn feeding part(10) which is installed on the head stem, feeding one selected from plural yarns fed from plural spools(9) to the needle work part; and a yarn standby-quantity controlling unit(20) which is installed on a space between the spool and the yarn feeding part, keeping the yarns. The yarn standby-quantity controlling unit comprises a yarn standby-quantity controlling main body and a yarn standby-quantity controlling bar. The yarn standby-quantity controlling main body comprises: plural yarn guiding parts guiding the yarns transferred from the spools in a direction of the yarn feeding part; plural yarn keeping parts which are communicated with each yarn guiding part, having a keeping space keeping the yarn on standby state. The yarn standby-quantity controlling bar is characterized by being transferred along the yarn keeping part and transferring plural yarns from a work state to the standby state.

Description

Upper thread feeder for automatic embroidery machine {THREAD FEEDING APPARATUS FOR AN AUTOMATIC EMBROIDERING MACHINE}

The present invention relates to an upper thread supply apparatus for an automatic machine, and more particularly, to an upper thread supply apparatus for an automatic machine, in which the upper thread supply structure is improved.

An automatic embroidery machine is a kind of automatic sewing machine which automatically embroiders a predetermined pattern and trademark by using a thread of various colors and is automatically embroidered by a program pre-woven on a label of clothing or shoes.

In general, the automatic embroidery machine is provided by a head stem provided in front of the fixed frame, a upper thread feeder which is attached to the head stem and supplies upper threads of various colors from a plurality of failures in the direction of embroidery work, and a upper thread feeder. It includes a needle working portion for sewing the supplied upper thread to perform the embroidery work. In addition, the automatic machine is classified into a single needle and a multi needle according to the number of needles mounted on the upper thread feeder and the needle working part.

The single needle embroidery machine has an upper thread feeder for selectively feeding one of several different colors of upper thread from a plurality of failures to the needle work, and one needle for sewing the upper thread to be embroidered. It includes a needle working part.

The multi-needle embroidery machine has a needle feeder for feeding needle threads of various different colors from a plurality of failures, and a needle having a plurality of needles so that one of the plurality of needle threads is sewn and one of them is embroidered. Includes a working part.

In the following description, an automatic embroidery machine for a single needle will be described.

The invention of the conventional single needle automatic machine is disclosed in "Upper thread feeder for automatic machine" in Korean Patent Laid-Open No. 2002-0068028.

The conventional automatic embroidery machine upper thread supply apparatus includes a head stem having a needle work part, a thread supply part supplying any one selected from a plurality of threads having different colors, and a thread provided to the head stem to receive a thread from the thread supply part. Including a guide tube assembly for guiding the work part and a thread take-up that tensions and relaxes the thread, the curved path can be excluded from the supply path of the thread while unifying the head stem, so that the thread can be smoothly supplied.

In addition, the upper thread supply apparatus of the conventional automatic embroidery machine further includes a actual air volume control unit provided between the thread bobbin and the thread supply unit to maintain and release the standby state of the thread.

The actual air volume control unit is coupled with a plurality of threads behind the seal holding part having a seal holder and the like disposed on the upper part of the seal waiting block, a seal holder driving part for driving the seal holder, and a seal holding part, so as to move back and forth toward the seal holding part. A plurality of actual air volume control bar provided, and a drive unit for driving the plurality of actual air volume control bar, respectively.

However, the actual air volume control unit provided in the upper thread supply device for the conventional automatic embroidery machine is provided with a real air volume control bar for selectively moving each thread by combining with a plurality of yarns, and a driving unit for driving the plurality of actual air volume control bars, respectively. In addition, the configuration is complicated, there is a problem that a lot of manufacturing costs.

Accordingly, an object of the present invention is to provide an upper thread feeder for an automatic machine, which is simple in structure and can reduce manufacturing costs.

The object is, according to the present invention, an automatic machine having a head stem equipped with a needle work part and a thread supply part for supplying any one selected from a plurality of threads mounted on the head stem and conveyed from a plurality of failures to the needle work part. An upper thread supply apparatus for an embroidery machine, comprising: an accommodation space for accommodating the plurality of threads between the failure and the thread supply unit, and a thread capacity adjusting unit for moving the plurality of threads to be accommodated in the accommodation space, The actual air volume control unit includes a plurality of thread guides provided to guide the plurality of yarns transferred from the failure toward the thread supply unit, and a receiving space communicating with each of the thread guides to receive the seals in the standby state. A real air volume control body having a plurality of real parts; It is achieved by the upper thread supply device for an automatic machine, characterized in that it is provided to be movable along the real part and comprises a thread air volume control bar for moving the plurality of yarns from the working state located in the thread guide unit to the standby state.

Here, the actual air volume control unit is preferably provided between the failure and the actual air volume control body includes a thread transfer blocking portion for blocking the plurality of yarns transferred to the actual air volume control body.

The plurality of thread guides are recessed in the thread conveying direction to accommodate the plurality of yarns, respectively, on the upper surface of the actual air volume control body, and the real part is recessed downward from the lower surface of each thread guide. It is preferable.

Preferably, the actual air volume control body further includes a guide slit communicating with the real part in the horizontal direction of the thread transfer direction to guide the actual air volume control bar.

The plurality of real parts are provided in the thread conveying direction, the guide slits are provided in plurality in correspondence with the plurality of real parts formed in the thread conveying direction, respectively, and the actual air volume control bar is provided in the plurality of guide slits, respectively. It is preferable to be provided in plurality plurally.

Preferably, the plurality of actual air volume control bars are integrally coupled and transported by the control bar driving unit.

The thread transfer blocking portion includes a first blocking portion and a second blocking portion which are in contact with and separated from each other with the plurality of yarns interposed therebetween, and the plurality of yarns are elastically disposed on opposite surfaces of the first and second blocking portions. It is preferable that an elastic member is provided to pressurize.

It is preferable to further include a yarn support portion provided between the actual air volume control unit and the yarn supply unit to support the plurality of yarns transferred from the actual air volume control unit to the yarn supply unit.

The thread support part includes a support plate provided between the thread capacity adjusting unit and the thread supply part; A first support part provided on the support plate proximate to the actual air volume control unit to support the plurality of threads provided between the actual air volume control unit and the thread supply part; Preferably it includes a second support portion provided on the support plate proximate to the yarn supply portion to support the plurality of yarns provided between the first support portion and the yarn supply portion.

It is preferable to further include a thread support guide provided between the failure and the actual air volume control unit for supporting and guiding the plurality of yarns transferred from the failure to the actual air volume control unit.

The thread support guide part is provided between the failure and the actual air volume control unit to support the plurality of yarns transferred from the failure to the actual air volume control unit, and is provided on the thread support to the actual air volume control unit. It is preferable to include a thread guide member for guiding a plurality of threads.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

As shown in Figures 1 to 3, the upper thread supply device 1 for an automatic embroidery machine according to the present invention, is provided in front of the fixed frame 5, the fixed frame 5 and the needle work portion (below) (Not shown) for supplying any one selected from the head stem 7 equipped with the head stem 7 and the plurality of threads 3 mounted on the head stem 7 and conveyed from the plurality of failures 9 having different colors to the needle work unit. Actual air capacity for forming a receiving space for accommodating the plurality of yarns 3 between the yarn supplying portion 10 and the failure 9 and the yarn supplying portion 10 and for moving the plurality of yarns 3 to be accommodated in the receiving space. Control unit 20 is included.

In addition, the upper thread supply device 1 for an automatic embroidery machine according to the present invention is a thread sewing device (not shown) for binding the thread 3 supplied by the thread supply part 10 to a needle (not shown) provided in the needle work part. And, a thread take-up (not shown) which tensions and relaxes the thread 3 by taking a portion of the thread 3 passing through the thread supply part 10, and adjusts the supply tension of the thread 3 supplied to the needle work part. It is preferable to further include a mounting force adjusting unit (not shown).

In addition, the upper thread supply device 1 for an automatic embroidery machine according to the present invention is provided between the actual air volume control unit 20 and the thread supply unit 10, a plurality of conveyed from the actual air volume control unit 20 to the thread supply unit 10 It is preferable to further include a thread support portion 50 for supporting the thread (3), and is provided between the failure (9) and the actual air volume control unit 20 is transferred from the failure (9) to the actual air volume control unit (20) It is preferable to further include a thread support guide portion 60 for supporting and guiding the plurality of seals (3).

The fixed frame 5 is mounted on a horizontal surface such as the ground, or is coupled to a wall or other mechanical device to serve to support the head stem 7 and the like.

Head stem 7 preferably has a substantially rectangular plate shape so as to support the thread supply unit 10 and the needle work unit (not shown) and the thread sewing device (not shown) on the front, such a thread supply unit 10, etc. It may be provided in various shapes to support the.

The thread supply unit 10 includes a thread supply block 11 having a plurality of thread organs 31 for receiving and waiting the end portions of the chambers 3 transferred from the plurality of failures 9, and the thread supply block 11. A plurality of connecting pipes (15) provided in communication with the actual organ (12), respectively, the lower side of the one thread guide tube (19) in communication with the plurality of connecting pipes (15), a plurality of connecting pipes (15) and It is installed in communication with the support pipe 17 for supporting the thread guide tube 19 and the plurality of actual engines 12 provided in the thread supply block 11, respectively, by selectively injecting a high-pressure air a plurality of actual engines ( And an air supply unit 13 for selectively supplying any one of the plurality of threads 3 housed in 12 in the direction of the needle work unit. And, the thread supply unit 10 is more easily supplied to the needle work through the thread guide tube 11, the thread 3 is coupled to the support tube 17 and transferred through any one of the plurality of connecting tubes 15. It is preferable to further include an auxiliary air supply unit 18 for injecting air.

The actual air volume control unit 20 includes a actual air volume control body 21 in which an accommodation space is formed to accommodate a predetermined length of the plurality of yarns 3 provided between the failure 9 and the thread supply unit 10 in a standby state, The actual air volume control bar 31 for moving the plurality of yarns (3) to the receiving space. And, the actual air volume control unit 20 is provided between the failure (9) and the actual air volume control main body 21, the thread transfer blocking unit which can block a plurality of threads (3) conveyed to the actual air volume control main body 21 ( It is preferable to further include 41).

The actual air volume adjusting body 21 communicates with the plurality of thread guides 23 provided to guide the plurality of yarns 3 transferred from the failure 9 in the direction of the thread supply unit 10, respectively, from the respective thread guides 23. And a plurality of real parts 25 for accommodating the plurality of chambers 3 in the standby state, respectively. And, it is preferable that the actual air volume control main body 21 further has a guide slit 27 which communicates along the real part 25 in the horizontal direction of the yarn 3 conveyance direction. In addition, the actual air volume control body 21 is preferably provided in a substantially rectangular block shape.

Thread guide portion 23 is preferably formed in a predetermined depth recessed in the conveying direction of the yarn 3 to accommodate the plurality of yarns 3 on the upper surface of the actual air volume control main body 21, respectively, The predetermined depth of the interior 23 is preferably such that the seal 3 is not detached when the seal 3 is transferred.

The real part 25 is recessed in a predetermined depth downward from the lower surface of each thread guide portion 23, and preferably has a predetermined width in the yarn 3 conveying direction. And, it is preferable that a plurality of real portions 25 are provided in the direction of conveyance of the yarn 3, and in one embodiment of the present invention, three real number portions 25 are provided in the direction of conveyance of the yarn 3. The predetermined depth of the real part 25 is determined by the air amount of the thread 3, and the air amount of the thread 3 is accommodated in the actual engine 12 of the thread supply part 10. It is preferable that the end portion of is supplied to the needle working portion to bind to the needle hole. In addition, when a plurality of real parts 25 are provided, the air volume of each chamber 3 can be dispersed and accommodated in each real part 25, so that the depth of each real part 25 can be reduced.

The guide slit 27 is provided in communication with the real part 23 to guide the actual capacity adjusting bar 31 to be accommodated. Then, the guide slit 27 is preferably formed downward along the real part 23 in the transverse direction of the yarn 3 conveyance direction, and corresponds to the number of the real part 23 provided in the yarn 3 conveyance direction. It is preferable that a plurality be provided. In addition, in the embodiment of the present invention, since three real parts 23 are provided in the yarn 3 conveying direction, three guide slits 27 are also provided. That is, each guide slit 27 is provided in communication with the plurality of real parts 25 formed in the transverse direction of the thread transfer direction corresponding to the plurality of yarns 3, and these guide slits 27 are provided in three sets. .

The actual air volume control bar 31 is movably accommodated in the guide slit 27, and the plurality of threads 3 are positioned in the thread guide part 23 to the real part 25 in a working state supplied in the direction of the needle work table. Move to the accepted standby state. And, the actual air volume control bar 31 is preferably provided on the upper side of the plurality of yarns (3), it is preferable to be provided in plurality in correspondence to the number of guide slits 27 provided in the yarn transport direction. In the present invention, since the guide slit 27 is provided in three in the thread transfer direction, the actual air volume control bar 31 is also provided in three. In addition, it is preferable that one side of the actual air volume control bar 31 is provided with a control bar support part 33 integrally formed or coupled with the plurality of actual air volume control bars 31.

The adjustment bar support part 33 is preferably coupled to the control bar driving part 35 for moving the actual air volume control bar 31 along the guide slit 27.

Adjusting bar driving unit 35 is one side is preferably a cylinder device coupled to the control bar support 33 to enable the reciprocating movement of the control bar support 33 in the vertical direction, but is connected to the control bar support 33 Of course, it can also be a belt and a drive motor for allowing the pants section 33 to move up and down.

The thread transfer blocking portion 41 is mounted on one side of the rear side of the actual capacity adjusting body 21 and provided to block the plurality of yarns 3 transferred to the thread guide portion 23. In addition, the thread transfer blocking portion 41 preferably has first and second blocking portions 43 and 45 which are in contact with and separated from each other with the plurality of yarns 3 interposed therebetween.

The first blocking portion 43 is provided at a position close to the thread guide portion 23 in the actual air volume control main body 21, and the second blocking portion 45 has a plurality of seals (above the first blocking portion 43). It is prepared with 3) in between. In addition, the first and second blocking parts 43 and 45 are equipped with a blocking driving part 49 for blocking and allowing the transfer of the yarn by contacting and detaching the first and second blocking parts 43 and 45 from each other. desirable. In addition, the surfaces of the first and second blocking portions 43 and 45 which are opposed to each other are elastically pressed to elastically press the plurality of seals 3 when the first and second blocking portions 43 and 45 come into contact with each other. It is preferable that the member 47 is provided. In addition, it is preferable that the through hole is provided in the second blocking part 45 so that the plurality of seals 3 conveyed from the failure 9 can be penetrated respectively.

One side of the blocking driving part 49 is coupled to the first and second blocking parts 43 and 45 to move the second blocking part 45 in the direction of the first blocking part 43 so as to contact the first blocking part ( It is preferable that the plurality of seals 3 are separated from the cylinder 43 so as to be a cylinder device which blocks or permits transportation.

The thread support unit 50 is provided on a support plate 51 provided between the actual air volume control unit 20 and the thread supply unit 10, and a support plate 51 proximate the actual air volume control unit 20. The first support part 53 supporting the plurality of seals 3 provided between the thread supply part 20 and the support plate 51 adjacent to the thread supply part 10 is provided on the first support part 53 and the thread. And a second support part 55 for supporting the plurality of seals 3 provided between the supply parts 10.

The support plate 51 is preferably provided in a plate shape on the upper side of the head stem (7). The first support portion 53 is formed by bending the wire several times to accommodate the plurality of seals 3, respectively. In addition, the second support part 55 may be formed to penetrate a plurality of upper portions of the seal supply part 10.

The thread support guide 60 is provided between the failure 9 and the actual capacity control unit 20 to support the plurality of threads 3 transferred from the failure 9 to the actual capacity control unit 20. And a thread guide member 63 provided on the thread support 61 to guide the plurality of yarns 3 to the thread capacity control unit 20.

The thread support 61 is provided in a "T" shape at the rear of the actual capacity adjusting body 21 to support the plurality of threads 3. And, the thread guide member 63 is formed to extend to one side in the upper region of the thread support (61) in the cross-section of the "L" shape, the through hole is formed so as to walk through the plurality of threads (3).

By this configuration, looking at the operation of the actual air volume control unit 20 provided in the upper thread supply device for an automatic machine according to the present invention.

First, as shown in FIG. 4 to FIG. 6, the preparation process for accommodating the plurality of chambers 3 in the actual air volume control unit 20 and waiting for the air will be described.

The plurality of yarns 3 are respectively transferred from the failure 9 through the thread support guide part 60, the thread transfer blocking part 41, the thread guide part 23, and the thread support part 50 in the direction of the thread supply part 10. (See Fig. 4). Then, the adjustment bar drive unit 35 is driven to move the actual capacity control bar 31 downward, wherein the thread feed blocking unit 41 maintains a state allowing the transfer of the yarn 3. Then, the plurality of yarns 3 accommodated in the thread guide portion 23 are accommodated in the real part 25 (see FIG. 5). Then, the actual air volume control bar 31 is moved upward (see FIG. 6). Then, the plurality of seal 3 ends are inserted into the thread large organ 12 of the seal supply unit 10. Then, the preparation state for supplying the thread to the needle work part is completed.

When this preparation state is completed, any one of the plurality of yarns 3 accommodated in the yarn body 12 is selectively transferred to the needle work unit by injecting high pressure air through the air supply unit 13. At this time, the selected one of the yarns 3 which are accommodated in the real part 25 of the actual air volume control unit 20 and waiting is transferred and is supplied in the direction of the needle work part. Then, the thread 3 is bound to the needle provided in the needle work part using a thread sewing machine (not shown) to perform the needle work. Then, the remaining chambers 3 that are not selected are waiting in the state accommodated in the real part 25. Then, the thread 3 on which the needle work is performed is transferred from the failure 9 to be continuously supplied to the needle work part through the thread guide part 23 and the thread supply part 10.

Then, in order to recover the yarn 3 for cutting the yarn 3 or replacing it with another yarn 3, as shown in FIGS. 7 and 8, the shutoff driving portion 49 is operated to seal the yarn transfer block ( The first blocking portion 43 and the second blocking portion 45 of 41 are brought into contact with each other. Then, the transfer of the yarn 3 from the failure 9 to the actual air volume control unit 20 is blocked (see FIG. 7). Then, by operating the adjusting bar drive unit 35 to move the actual capacity control bar 31 to the lower side, the thread 3 supplied in the needle working direction is recovered again in the direction of the actual organ 12 (see Fig. 8). ). Then, by operating the adjustment bar driving unit 35, the actual air volume control bar 31 is moved upward. Thereafter, the blocking driving unit 49 is operated to disengage the second blocking unit 45 in contact with the first blocking unit 43 of the actual feed blocking unit 41. In such a state, the high pressure air is injected through the air supply unit 13 to selectively transfer one of the plurality of seals 3 accommodated in the thread organ 12 to the needle work part direction. Then, the thread 3, which is accommodated in the real part 25 of the actual air volume control unit 20 and is waiting, is transferred and directed toward the needle work part.

Thus, the upper thread supply apparatus for an automatic machine according to the present invention has a actual air volume control body 21 and the actual air volume control bar 31 so as to accommodate the plurality of yarns (3) at the same time by moving to the standby state By including the unit 20, not only the configuration is simple, but also the manufacturing cost can be reduced.

As described above, according to the present invention, it is possible to provide an upper thread supplying device for an automatic machine which can not only have a simple structure but also reduce manufacturing costs.

1 is a perspective view showing an upper thread supply apparatus for an automatic machine according to the present invention;

Figure 2 is an enlarged perspective view of the actual air volume control unit of Figure 1,

3 is a cross-sectional view of III-III of the actual air volume control unit of FIG.

4 to 6 is a cross-sectional view showing a process of receiving a plurality of yarns in the air volume control unit of the upper thread supply apparatus for an automatic machine according to the present invention,

7 and 8 are cross-sectional views showing a process of recovering the thread supplied with the actual air volume control unit of the upper thread supply apparatus for an automatic machine according to the present invention.

* Explanation of symbols for the main parts of the drawings

1: upper thread supply device 3: thread

7: Headstem 9: Failure

10: thread supply unit 11: thread supply block

12: real engine 13: air supply unit

15: connector 17: support tube

18: auxiliary air supply unit 19: thread guide

20: actual air volume control unit 21: actual air volume control unit

23: thread guide 25: mistake

27: guide slit 31: actual air volume control bar

33: adjusting bar support part 35: adjusting bar driving part

41: actual transfer blocking part 43: first blocking part

45: second blocking portion 47: elastic member

49: blocking drive part 50: thread support part

51: support plate 53: first support part

55: second support 60: actual support guide

61: thread support 63: thread guide member

Claims (11)

In the upper thread supply apparatus for an automatic embroidery machine having a head stem equipped with a needle work unit, and a thread supply unit for supplying any one selected from a plurality of yarns mounted on the head stem and transferred from a plurality of failures to the needle work unit, And a thread amount control unit for forming a receiving space between the failure and the thread supply part to accommodate the plurality of threads, and moving the plurality of threads to be accommodated in the receiving space. The actual air volume control unit, A plurality of thread guides provided to guide the plurality of yarns conveyed from the failure in the direction of the thread supply part, and a plurality of real parts for communicating with each of the thread guides to form an accommodation space to receive the yarns in a standby state; Real air volume control body having; The upper thread supply device for an automatic embroidery machine comprising a thread air volume control bar provided to be movable along the real part and moving the plurality of yarns to a standby state in a working state of the thread guide unit. The method of claim 1, The actual air volume control unit is provided between the failure and the actual air volume control main body upper thread supply device for an automatic embroidery machine, characterized in that it comprises a thread transfer blocking portion for blocking the plurality of threads conveyed to the actual air volume control body. The method of claim 2, The plurality of thread guides are recessed in the thread conveying direction to accommodate the plurality of yarns, respectively, on the upper surface of the actual air volume control body, and the real part is recessed downward from the lower surface of each thread guide. Upper thread supply device for an automatic machine. The method of claim 3, The actual air volume adjusting body further comprises a guide slit communicating with the real part in the horizontal direction of the thread conveying direction to guide the actual air volume adjusting bar. The method of claim 4, wherein The plurality of real parts are provided in the thread conveying direction, the guide slits are provided in plurality in correspondence with the plurality of real parts formed in the thread conveying direction, respectively, and the actual air volume control bar is provided in the plurality of guide slits, respectively. Upper thread supply device for an automatic embroidery machine characterized in that it is provided in plurality receptably. The method of claim 5, The plurality of actual air volume control bar is integrally coupled to the upper thread supply device for an automatic embroidery machine characterized in that the conveying by the control bar drive unit. The method of claim 2, The thread transfer blocking part includes a first blocking part and a second blocking part which are in contact with and separated from each other with the plurality of yarns interposed therebetween, The upper thread supplying device for an automatic machine according to claim 1, wherein an elastic member is provided on an opposing surface of the first and second blocking parts to elastically press the plurality of threads. The method according to any one of claims 1 to 7, And a thread support part provided between the thread capacity control unit and the thread supply part to support the plurality of threads transferred from the thread capacity control unit to the thread supply part. The method of claim 8, The thread support portion, A support plate provided between the actual air volume control unit and the yarn supply unit; A first support part provided on the support plate proximate to the actual air volume control unit to support the plurality of threads provided between the actual air volume control unit and the thread supply part; And a second support part provided on the support plate proximate to the thread supply part to support the plurality of yarns provided between the first support part and the thread supply part. The method of claim 8, And a thread support guide part provided between the failure and the actual air volume control unit to support and guide the plurality of threads transferred from the failure to the actual air volume control unit. The method of claim 10, The thread support guide part is provided between the failure and the actual air volume control unit to support the plurality of yarns transferred from the failure to the actual air volume control unit, and is provided on the thread support to the actual air volume control unit. Upper thread supply device for an automatic embroidery machine comprising a thread guide member for guiding a plurality of threads.