KR20040012227A - a operation and suction device of sewing machine - Google Patents

Abstract

PURPOSE: A driving and an exhausting devices of a sewing machine are characterized by installing a driving part and an exhausting part on a clutch motor, reducing a cost and operating the driving part and the exhausting part simultaneously simply. CONSTITUTION: The driving and the exhausting devices are comprised of: the driving part(100) joined to one side of the clutch motor(40); and the exhausting part(200). The exhausting part is comprised of: a second cover(202) formed an insert hole and communicated with a case(30); a second rotor(242) joined to an end of a second main shaft(204) connected with the other side of the clutch motor(40); a second clutch plate(206) inserted a rotating shaft(207); a guide pipe fixed on the rotating shaft(207) and formed a transferring groove; an impeller installed on the rotating shaft in a housing; a holding piece which is set between the housing and the second cover(202) and is connected to the guide pipe, connecting and fixing the housing; and a second clutch lever which is inserted into the insert hole and is connected with a footboard(28), holding the guide pipe.

Description

Driving and suction device for sewing machine {a operation and suction device of sewing machine}

TECHNICAL FIELD The present invention relates to a driving machine and a suction device of a sewing machine, and more particularly, to an industrial sewing machine, such as overlock sewing, interlock sewing, and the like.絲 屑) The present invention relates to a driving device and a dust collecting device of a sewing machine which can reduce dust in space and easily operate by forming a device capable of collecting dust and the like with a clutch motor.

As shown in FIG. 1, a conventional industrial sewing machine includes a first pulley 2 fixedly coupled to an end of a transmission shaft 3 coupled to one side of a sewing machine main body 1 and a sewing machine main body 1, and a first one. The drive shaft 17 extending from the second pulley 2 connected by the pulley 2 and the belt 6, the clutch motor 10 provided in the case 5, and one open side of the case 5. The rotor 12 fixedly coupled to the end of the main shaft 14 extending from the clutch motor 10 and the drive shaft 17 of the second pulley 4 so as to be rotated together with the rotor 12 selectively contacting. It comprises a clutch plate 16 coupled to, and a cover 19 to protect the clutch plate 16 and to open and close one open side of the case (5).

In particular, when the clutch motor 10 is rotated by an external power source and the operation lever 15 connected to the clutch plate 16 is moved downward, the clutch plate 16 is driven by being interviewed with the rotor 12. do.

At this time, the operation lever 15 is inserted into the guide 13 fixed by the fixing stand 18 installed in the lower portion of the case 5 is to be slide guided.

Then, between the guide 13 and the operating lever 15 is interposed between the spring 11, the operating lever 15 is lowered by the operation of the footrest 7 is restored to the original by the elastic force of the spring 11 and the clutch The plate 16 is to be separated from the rotor 12.

A fastening bolt 9 is fastened to one end of the guide 13 to prevent the spring 11 from being separated.

In addition, the operating lever 15 is connected to the footrest 7 and the hinge shaft (8).

On the other hand, when sewing the fabric with the above-mentioned sewing machine is used to sew, cut or other materials such as cloth, in the various operations by such a sewing machine, fine dust and unnecessary pieces of cloth are generated due to the characteristics of the material In addition, it was not only a bad influence on the human body of the worker, but also a factor that hinders the continuity of the work due to the hassle of cleaning it from time to time.

Thus, in order to solve this problem, the suction motor (not shown) is separately installed on the sewing machine, and the dust and cloth pieces generated during the sewing work are sucked in and collected into a collection box (not shown).

However, since the clutch motor for driving the above-mentioned sewing machine and the suction motor for sucking up each must be installed, it is complicated in space and has to be operated separately.

In addition, since the clutch motor and the suction motor must be provided separately, there is a problem in that the purchase cost is high.

The present invention is proposed to solve the above problems of the prior art, the drive unit for driving the sewing machine and the suction unit for the suction can be installed on both sides of the clutch motor, respectively, and at the same time to operate the ease of operation To provide and reduce the complexity of the sewing machine and to provide a drive and a reduction device of the sewing machine that can reduce the cost.

The present invention for achieving the above object is a drive device for a sewing machine in which the sewing machine body is driven by the drive of the clutch motor by an external power source to sew the cloth, is formed coupled to one side of the clutch motor to rotate by the operation of the footrest Providing a driving unit and a device for driving a sewing machine including a driving unit driven together with the clutch motor to be coupled to the other side of the clutch motor, and a suction unit for sucking dust and cloth pieces by the clutch motor rotated by the operation of the foot plate. For sake.

1 is a conceptual diagram of a conventional sewing machine.

2 is a conceptual diagram of a sewing machine according to the present invention.

Figure 3 is a state diagram coupling the drive unit and the suction unit to the clutch motor according to the invention.

Figure 4 is a perspective view showing a coupling state of the reducer according to the present invention.

5 is a perspective view showing an installation example of the sewing machine according to the present invention.

* Description of the symbols for the main parts of the drawings *

20: sewing machine body 22: first pulley

23: transmission shaft 24: the second pulley

26: belt 28: scaffolding

30: case 40: clutch motor

42: first rotor 100: drive unit

102: first cover 104: first spindle

106: first clutch plate 107: drive shaft

108: first fixed platform 110: first guide

114: first operating lever 116: hinge shaft

120: needle 200: reducer

202: second cover 203: insertion hole

204: second spindle 206: second clutch plate

207: axis of rotation 208: second fixing station

210: second guide 216: impeller

220: guide tube 222: transfer groove

230: reducer 232: housing

236: First fastener 238: Second fastener

300: collection box 310: separator

320: suction hole 330: discharge hole

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

2 is a conceptual diagram of a sewing machine according to the present invention, Figure 3 is a state diagram for coupling the drive unit and the suction unit to the clutch motor according to the present invention, Figure 4 is a perspective view showing a coupling state of the suction unit according to the invention, 5 is a perspective view showing an installation example of a sewing machine according to the present invention.

Detailed description of the same or similar elements as in the prior art will be omitted.

As shown in Figure 2 to 4, the drive and the reduction apparatus of the sewing machine according to the present invention of the sewing machine driven by the sewing machine main body 20 by the drive of the clutch motor 40 by an external power source to sew the cloth. In the driving device, the coupling portion formed on one side of the clutch motor 40 and driven together with the clutch motor 40 which is rotated by the operation of the footrest 28 and the coupling portion formed on the other side of the clutch motor 40. And a suction part 200 which sucks dust and pieces of cloth by the clutch motor 40 rotated by the operation of the footrest 28.

The driving unit 100 is provided inside and outside of the first cover 102 that can open and close one side of the case 30 having the clutch motor 40 therein, and the suction part 200 of the case 30 It is provided inside and outside of the second cover 202 that can open and close the other side.

In addition, the driving unit 100 and the suction unit 200 are installed to be driven together by the operation of the scaffold 28 and to be stopped together by the release of the operation.

2 to 3, the sewing machine is a sewing machine main body 20, the first pulley 22 fixedly coupled to the end of the transmission shaft 23 coupled to one side of the sewing machine main body 20, The drive shaft 107 extending from the second pulley 24 connected by the first pulley 22 and the belt 26, the clutch motor 40 provided in the case 30, and the clutch motor 40 are installed. The case 30 is open to both sides.

In addition, the driving unit 100 is the first rotor 42 and the first rotor 42 fixedly coupled to the end of the first main shaft 104 extending from the clutch motor 40 to the open side of the case 30 The first clutch plate 106 and the first clutch plate 106 coupled to the drive shaft 107 of the second pulley 24 and the first clutch plate 106 may be selectively bonded to each other and rotated together. The first cover 102, which can open and close the open side, and the first hinge 102 is hinged at the rear end of the first cover 102 and is fixed to the first fixing unit 108 installed in the front end of the first cover 102 1 is guided along the guide 110 and is configured to include a first operating lever 114 that is installed by the first spring 111 by the operation of the footrest (28).

At this time, the end of the first guide (110) so that the first spring 111, which supports the coalescing the first operating lever 114 of the 'b' shape in the first guide 110 is not separated Tighten with one fastening bolt (112).

In addition, the scaffold 28 is connected to the first operating lever 114 and the hinge shaft 116 via a medium.

Meanwhile, the suction part 200 opens and closes the other side of the case 30 having the clutch motor 40 therein, and both sides communicate with each other, and the second cover 202 having the insertion hole 203 formed at a predetermined position on the outer circumference thereof. The second rotor 242 coupled to the end of the second spindle 204 connected to the other side of the clutch motor 40 and the second cover 202 is formed inside the second rotor 242 and selectively The second clutch plate 206 is rotated while being joined together and the rotation shaft 207 is inserted into and fixed to the center portion, and the second clutch plate 206 is fitted to the rotation shaft 207 of the second clutch plate 206 to slide a certain distance together with the rotation shaft 207. The guide tube 220 is formed to be transferable and the groove 222 is formed at a predetermined position of the outer circumference, and is installed to rotate on the rotation shaft 207 at the outside of the second cover 202 and is installed in the housing 230. Interposed between the impeller 216 and the housing 230 and the second cover 202 to be coupled with the guide tube 220 and to couple the housing 230 Fixed to be formed at one end to be inserted into the support 224 and the insertion hole 203 of the second cover 202 to support the guide tube 220 and to transfer the guide tube 220 and the rotating shaft 207 The ball 215 is inserted into the feed groove 222 and consists of a second clutch lever 214 connecting the other end to the footrest 28.

The second actuating lever 214 is hinged to the rear end of the second cover 202 in the same manner as the first actuating lever 114 and fixed to the second fixing stand 208 installed at the front end of the second cover 202. It is guided on the second guide 210 and is operated by the snowfall of the second spring (211).

As the second operation lever 214 moves downward by the operation of the footrest 28, the second clutch plate 206 moves the second rotor 242 while the fixing ball 215 forcibly moves the transfer groove 222 for a predetermined distance. Installed in contact with

Of course, the first structure of the first clutch plate 106 by the operation of the first operating lever 114 is the same structure as the first rotor 42.

In addition, a second fastening bolt 212 is disposed at an end of the second guide 210 so that the second spring 211 supporting the second operation lever 214 in the second guide 210 is not separated. Fasten with

In addition, the scaffold 28 is connected to the second operating lever 214 and the hinge shaft 116 via a medium.

Meanwhile, the hinge shaft 116 may operate the hinge shaft 116, the first operating lever 114, and the second operating lever 214 to operate the first operating lever 114 and the second operating lever 214 together. ) Is coupled to the coupling bolt 117 and the coupling nut 118.

In particular, the hinge shaft 116 may be located at one side of the first operating lever 114 or the second operating lever 214 and may be interposed between the first operating lever 114 and the second operating lever 214. It may be.

In addition, the first and second operating levers 114 and 214 may be formed to be bent corresponding surfaces so that they can easily overlap.

Thus, the first clutch lever 114 and the second clutch lever 214 formed to operate the first clutch plate 106 of the driving unit 100 are operated together by the operation of the scaffold 28.

In addition, the clutch motor 40 uses a DC motor in the present invention.

On the other hand, the hose 312 is connected to the second cover 202 in order to suck the unnecessary cloth or dust by the operation of the exhaust unit 200.

As shown in FIG. 4, the suction part 200 is formed inside the second cover 202 and is flat so as to be in surface contact with the second rotor 242 and has a rotation shaft 207 inserted in the center thereof. It consists of a clutch plate 206 and a reducer 230 which can be operated for the suction.

In addition, the reducer 230 of the reducer 200 is formed on the outside of the second cover 202 and is in communication with the housing 232 to be sucked through the hose 312 and the end of the rotary shaft 207. The impeller 216 inserted into the housing 232 and installed inside the housing 232, and a support 224 interposed between the housing 232 and the outside of the second cover 202 and fitted to the rotation shaft 207. It is composed.

In addition, the fixing bolt 205 is fastened to the end of the rotating shaft 207 in which the impeller 216 is inserted to prevent the rotation of the rotating shaft 207.

The second fastening bolt 212 is fastened to the end of the rotation shaft 207 in which the second clutch plate 206 is inserted to prevent the second clutch plate 206 from being separated.

At this time, at least one first fastening hole 236 is formed at the edge of the support 224 to be coupled to the housing 232 by the first bolt 237.

In the present invention, two first fastening holes 236 are formed at opposite edges.

In addition, at least one second fastening hole 238 is formed at the center edge of the support 224 to be coupled to the side of the guide tube 220 with the second bolt 239.

In the present invention, four second fastening holes 238 are formed at regular intervals.

Then, the support tube 224 and the support 224 fastened so as not to rotate and the housing 232 fastened to the support 224 are fixed not to rotate.

The support 224 may be fitted to an inner surface of the second cover 202.

In addition, a second operating lever 214 is provided on the outside of the second cover 202 of the suction unit 200. The second operating lever 214 has a round fixed ball 215 at one end in a 'b' shape. Formed.

The fixing ball 215 of the second operation lever 214 is inserted into the insertion hole 203 formed through the outer periphery of the second cover 202, the feed groove 222 formed on the outer periphery of the guide tube 220 Will be inserted).

In addition, the fixing ball 215 and the guide tube 220 is preferably made of a durable material.

Hereinafter, an embodiment of the present invention having the above configuration will be described in detail.

As shown in Figure 5, the sewing machine main body 20 is installed on the work table (50).

One side of the sewing machine main body 20 is provided with a first pulley 22 which can be rotated so that the needle 120 is elevated.

The first pulley 22 and the second pulley 24 installed below the work table 50 are connected to the belt 26 so as to be rotated together.

The second pulley 24 is connected to the first clutch plate 106 and the drive shaft 107 installed in the first cover 102.

On the other hand, the clutch motor 40 is embedded in the case 30, one side of which is sealed by the first cover 102.

A first rotor 42 is formed at the end of the first spindle 104 extending to one side of the clutch motor 40.

The clutch motor 40 is rotated when the first rotor 42 is rotated by an external power source, and the first clutch plate 106 is joined to the first rotor 42 to be rotated so that the needle 120 is elevated. Drive it.

In addition, a second clutch plate 206 is formed inside the second cover 202 that can open and close the other side of the case 30 to extend the second main shaft 204 formed from the other side of the clutch motor 40. It is rotated while contacting the second rotor 242 installed at the end.

At this time, when the impeller 216 connected to the second clutch plate 206 and the rotating shaft is rotated, the suction is performed.

At this time, it is preferable that the shape of the first rotor 42 and the second rotor 242 is the same to facilitate compatibility.

When the operator steps on the footrest 28, the operator operates the hinge shaft 116, the first operating lever 114, and the second operating lever 214.

When the first actuating lever 114 and the second actuating lever 214 are simultaneously downward, the first clutch plate 106 is rotated in contact with the first rotor 42 and the second clutch plate 206 is the second rotor. It is rotated in contact with 242.

The needle 120 is moved up and down by the rotation of the first clutch plate 106, and is absorbed by the rotation of the second clutch plate 206.

On the other hand, the hose 312 coupled to the second cover 202 is connected to the collection box 300 is installed at a lower position of the work table (50).

In addition, the collection box 300 is formed with a suction hole 320 for sucking dust or pieces of cloth and a discharge hole 330 for filtering the sucked dust or pieces of cloth and then discharging only air to the clutch motor 40.

The suction hole 320 and the discharge hole 330 are installed to be separated by a separator plate 310 in the collection box 300.

That is, when the second clutch plate 206 is rotated, the dust and cloth pieces are sucked into the suction hole 320 of the collecting container 300 through the hose 312 installed close to the needle 120.

At this time, the bulky or heavy dust or piece of cloth sinks to the inside of the collection box 300 and the rest is moved to the discharge hole 330 through the through hole 314 through the separator plate 310.

Thus, the filtering membrane 322 should be provided inside the discharge hole 330.

A small amount of dust or cloth is also filtered through the membrane 322 and air is discharged through the clutch motor 40 through the hose 312.

On the other hand, if the operator is stepping on the footrest 28, the needle 120 is driven at the same time and the suction is performed. When the footrest 28 is returned to its original position, the driving of the needle 120 is also stopped and the suction is also stopped.

At this time, the brake shoe 109 should be installed in the first cover 102 so that the first clutch plate 106 is separated from the first rotor 42 and stops rotation immediately to stop the needle 120. .

As described above, according to the drive and the suction device of the sewing machine according to the present invention, since the driving unit and the suction unit are integrally formed on the clutch motor, there is a cost saving effect in installation.

In addition, since the desired purpose can be achieved by using only one motor, the work table is not complicated.

In addition, since the driving unit and the suction unit can be operated at the same time, there is an effect that the operation is simple.

Claims (3)

In the drive device of the sewing machine in which the sewing machine main body is driven by the drive of the clutch motor by the external power source to sew the cloth, The sewing machine is coupled to one side of the clutch motor is formed to drive with the clutch motor is rotated by the operation of the footrest; And a suction part coupled to the other side of the clutch motor to suck dust and cloth pieces by the clutch motor rotated by the operation of the scaffold. The method of claim 1, And the drive unit and the suction unit are driven together by the operation of the scaffold and are driven and stopped together by the release of the operation. The method according to claim 1 and 2, A second cover configured to open and close the other side of the case in which the clutch motor is embedded, and both sides thereof communicate with each other, and an insertion hole is formed at a predetermined position at an outer circumference thereof; A second rotor coupled to and fixed to an end of a second spindle connected to the other side of the clutch motor; A second clutch plate formed inside the second cover and selectively joined to the second rotor to be rotated together and having a rotation shaft inserted into and fixed to a central portion thereof; A guide tube fitted to the rotary shaft of the second clutch plate to allow a certain distance slide transfer with the rotary shaft and having a groove for transfer at a predetermined position of an outer circumference; An impeller installed on the rotating shaft at an outer side of the second cover and embedded in a housing; A supporter interposed between the housing and the second cover to engage with the guide tube and to fix and fix the housing; A second clutch lever inserted into the insertion hole of the second cover to support the guide tube and inserting a fixed ball formed at one end into the transfer groove so as to transfer the guide tube and the rotating shaft and connecting the other end with the scaffold; Drive and reducer of the sewing machine, characterized in that consisting of.