TWI468566B - Dual purpose yarn feeder decive - Google Patents

Description

Dual-purpose yarn feeding device

The invention relates to a yarn feeding device, in particular to a two-purpose yarn feeding device for electromagnetic clutching.

With the continuous development of the textile industry, more and more textile machinery must have the demand to supply irregular yarn feeding, in order to adapt to the weaving of the fabric pattern and the tension of the cloth surface, so as to meet the demand for yarn supply. In particular, the strip type yarn feeding device does not need to use an active motor, but uses a strip provided on the knitting machine as a power source, which simplifies the mechanism, reduces the volume, and reduces the cost.

In order to make the yarn feeding device suitable for the computer jacquard machine with irregular yarn feeding, the manufacturer has developed an electronic yarn storage device, which is provided with a motor in the yarn storage device, and uses the yarn detecting system inside the yarn storage device to determine the yarn. The detection state of the line determines whether the motor is driven to drive the yarn storage wheel to perform the yarn filling operation. Although it can meet the requirement of irregular yarn feeding, an independent motor is required inside each yarn storage device, which not only makes the volume larger. And it will increase the manufacturing cost and increase the power consumption.

The applicant has proposed a "electromagnetic clutch storage structure" (Taiwan Patent Application No. 099201372), which can be applied to a computer jacquard machine with irregular yarn feeding, and does not need to set a motor inside the yarn storage device. The structure is simple, does not make it bulky and causes an increase in manufacturing cost, and is not easy to malfunction, and the electromagnetic coil consumes less power and has a power saving effect.

However, the various existing yarn feeding devices have only a single function of regular yarn feeding or irregular yarn feeding. If a yarn feeding device with different functions is to be used, it takes time and labor to disassemble and replace the yarn feeding device, resulting in use. Inconvenience.

The embodiment of the invention provides a dual-purpose yarn feeding device, which has the functions of regular yarn feeding and irregular yarn feeding, and can select the functions required for switching according to needs, so as to facilitate use.

The embodiment of the present invention provides a dual-purpose yarn feeding device, comprising: a body: a first transmission shaft rotatably disposed on the body; a second transmission shaft rotatably disposed on the body; a clutch Provided between the first transmission shaft and the second transmission shaft; a yarn storage wheel coupled to the second transmission shaft, the light sensor is disposed on the inner side and the outer side of the yarn storage wheel; and a switch The switch is electrically connected to the clutch, and the switch is used for switching to control the clutch to be in a first mode or a second mode. When the clutch is switched to the first mode, the clutch is separated or In the engagement operation, when the clutch is switched to the second mode, the clutch is fixed to perform the engagement operation.

The invention has the following beneficial effects: the invention is provided with a switch, the switch is electrically connected to the clutch, and can be used to switch the control clutch into the first mode or the second mode. When the diverter switch shifting clutch is in the first mode, the clutch can normally perform the operation of separating and engaging, so that the yarn feeding device has the function of irregular yarn feeding. When the diverter switch shifting clutch is in the second mode, the clutch is fixed in the engaged state, so that the yarn feeding device has a function of regular yarn feeding.

For a better understanding of the features and technical aspects of the present invention, reference should be made to the accompanying drawings.

Referring to FIG. 1 to FIG. 5, the present invention provides a dual-purpose yarn feeding device, and more particularly to an electromagnetic clutch type yarn feeding device. The yarn feeding device 1 of the present embodiment includes a body 11, a pulley 12, and a first The drive shaft 13, a drive plate 14, an electromagnetic coil 15, a passive disk 16, a second drive shaft 17, and a storage yarn wheel 18.

One end of the body 11 can have a fixing portion 111, and the fixing portion 111 can be fixed and fixed on the knitting machine with a screw. The body 11 is provided with a plurality of yarn guiding members 112, 113, 114, 115 for guiding the yarn. A receiving groove 118 is formed in the body 11 , and the bottom of the receiving groove 118 can be open.

The pulley 12 is centrally connected to the upper end of the first transmission shaft 13, so that the pulley 12 and the first transmission shaft 13 can be rotated synchronously. The first transmission shaft 13 is pivotally connected to a fixed seat 117 by two bearings 116. The fixing base 117 is disposed in the body 11 so that the first transmission shaft 13 is rotatably disposed on the body 11. The pulley 12 is rotatably disposed above the body 11, and the lower end of the first transmission shaft 13 extends into the interior of the body 11. The pulley 12 can be used to mesh with a belt member such as a belt (not shown) to drive the pulley 12 and the first The drive shaft 13 rotates.

The lower end of the first transmission shaft 13 may be provided with a base 131, and the drive plate 14 is disposed at the bottom of the base 131 such that the drive plate 14 is coupled to one end (lower end) of the first transmission shaft 13. The drive plate 14 can be in the form of a circular disk, and the drive plate 14 is an iron member so as to be attracted by the electromagnetic coil 15 and the passive disk 16. Further, an elastic member 141 may be disposed between the driving plate 14 and the base portion 131. The elastic member 141 may be an elastic body such as a spring piece, and the elastic member 141 may provide a resetting force for driving the disk 14 to move upward. The fixing base 117, the first transmission shaft 13 and the driving plate 14 can be assembled into an upper module.

The electromagnetic coil 15 and the passive disk 16 are located below the drive plate 14, and the passive disk 16 is located between the drive disk 14 and the electromagnetic coil 15, and the passive disk 16 is rotatably disposed over the electromagnetic coil 15. The passive disk 16 is disposed opposite to the driving disk 14. The passive disk 16 is an iron member. The top of the passive disk 16 can be further provided with a rougher friction surface 161 for increasing the friction force to avoid the passive disk 16 and the driving disk. 14 produces slippage when in contact. The passive disk 16 and the driving disk 14 are in the range of the magnetic field of the electromagnetic coil 15, so that when the electromagnetic coil 15 is energized, the magnetic force generated by the electromagnetic coil 15 can be transmitted to the passive disk 16 and the driving disk 14, so that the passive disk 16 and the driving disk are driven. 14 phase adsorption.

One end (upper end) of the second transmission shaft 17 is fixedly connected to the center of the passive disk 16, and the upper end of the second transmission shaft 17 is pivotally connected to the electromagnetic coil 15 by two bearings 171, so that the second transmission shaft 17 is rotatably disposed on the body. 11 , the second transmission shaft 17 and the passive disk 16 are also rotatably disposed on the electromagnetic coil 15, and the electromagnetic coil 15, the passive disk 16 and the second transmission shaft 17 can be assembled into a lower module.

An annular gasket 19 can be disposed between the fixing base 117 and the electromagnetic coil 15. The height of the washer 19 can be appropriately changed according to the need, and the upper module, the washer 19 and the lower module can be press-fitted in the order of the jig. The first transmission shaft 13, the driving disk 14, the electromagnetic coil 15, the passive disk 16 and the second transmission shaft 17 are disposed in the body 11 in the receiving groove 118 of the body 11, and the gasket 19 is disposed on the fixing base 117 and the electromagnetic Between the coils 15.

In the body 11 of the yarn feeding device 1, a fixing seat 117, a driving plate 14, an electromagnetic coil 15, a passive disk 16 and a washer 19 are disposed between the first transmission shaft 13 and the second transmission shaft 17, and the clutch B is formed. B is disposed between the first transmission shaft 13 and the second transmission shaft 17. The height of the washer 19 can be appropriately changed according to the need, so that the distance between the drive plate 14 and the passive disk 16 can be adjusted, the structure of the clutch B can be simplified, and the assembly and adjustment are convenient and easy.

The second transmission shaft 17 and the passive disk 16 are rotatably disposed in the body 11. The lower end of the second transmission shaft 17 extends out of the bottom of the electromagnetic coil 15, and the storage yarn wheel 18 is coupled to the lower end of the second transmission shaft 17, so that the second transmission shaft 18 can be utilized. The second drive shaft 17 drives the yarn storage wheel 18 to rotate. The yarn storage wheel 18 has a plurality of spaced storage yarns 183, and the yarn can be wound around the outer edges of the storage nails 183.

A yarn presser 184 is provided on the yarn storage wheel 18 so as to be lifted and lowered. The yarn presser 184 is a ring-shaped body, and the yarn presser 184 is lowered by its own weight and pressed against the lower edge of the yarn storage wheel 18. The yarn wound on the yarn storage wheel 18 can pass between the yarn presser 184 and the lower edge of the yarn storage wheel 18, and then to the yarn guiding member 115, which can be pressed onto the yarn by the yarn presser 184 to make the yarn The delivery is relatively stable.

The yarn storage wheel 18 of the present invention may be of a one-piece or combined design, the configuration of which is not limited. In the present embodiment, the yarn storage wheel 18 is of a combined design. The yarn storage wheel 18 has an upper wheel body 185 and a lower wheel body 186. The upper wheel body 185 and the lower wheel body 186 are made of a plastic material, and the upper wheel body 185 The upper end of the lower wheel body 186 is inserted into the upper wheel body 185 and the lower wheel body 186, that is, pre-loaded and stored on the upper wheel body 185 and the lower wheel body 186. The corresponding holes (not shown) of the nails 183 are inserted into the corresponding holes of the upper wheel body 185 and the lower wheel body 186 respectively.

The upper wheel body 185 and the lower wheel body 186 are fixed by a plurality of screws (not shown), that is, the screws are threaded on the upper wheel body 185 and screwed to the lower wheel body 186 to make the upper wheel body 185 and the lower wheel body Between 186 is fixed. An accommodating space 188 is formed in the interior of the yarn storage wheel 18. The accommodating space 188 is located inside the storage nails 183. The top of the storage yarn wheel 18 is formed with an opening 189. The opening 189 is formed in the upper wheel body 185, and the opening 189 and the accommodating space. 188 is connected, and the outer edge of the lower wheel body 186 can be provided with a guide bevel A to enhance the yarn guiding effect.

The light sensors 181 and 182 are respectively disposed on the inner side and the outer side of the yarn storage wheel 18. The light sensors 181 and 182 can be fixed on the body 11 at an appropriate position. The number of the light sensors 181 and 182 is not limited, and may be one, Two or three, etc. A power switch 21 can be disposed on the main body 11, and the power switch 21 is appropriately electrically connected to the clutch B and the light sensors 181, 182, etc., and can be used to control the power required for input.

The light sensor 181 inside the yarn storage wheel 18 may be an infrared emitter or an infrared receiver, and the light sensor 182 outside the yarn storage wheel 18 may be an infrared receiver or an infrared emitter. The light sensors 181, 182 can be used as yarn detecting means for detecting whether the yarn on the yarn storage wheel 18 is sufficient. When the light sensors 181, 182 detect that the yarn is insufficient, an activation signal is output to turn on the electromagnetic coil 15 to excite it. The light sensor 181 inside the yarn storage wheel 18 can be disposed in the accommodating space 188 by the top opening 189 of the yarn storage wheel 18.

The yarn can be guided by the yarn guiding members 112, 113, 114, 115 and wound around the yarn storage wheel 18 to drive the pulley 12 by a belt member such as a belt (not shown), thereby passing through the first and second The drive shafts 13, 17 drive the yarn storage wheels 18 to rotate, thereby driving the yarns to perform yarn storage and yarn feeding operations by the yarn storage rollers 18.

As shown in FIG. 4, when the electromagnetic coil 15 is energized, the passive disk 16 is absorbingly engaged with the drive plate 14, thereby engaging the first transmission shaft 13 and the second transmission shaft 17, thereby enabling the rotational power of the first transmission shaft 13 to be The lower transmission shaft 17 is driven to drive the yarn storage wheel 18 to rotate, so that the yarn is wound around the yarn storage wheel 18 to continue the operation of storing the yarn.

As shown in FIG. 3, when the electromagnetic coil 15 is de-energized, the driving disk 14 can be pulled apart from the passive disk 16 by the elastic member 141, so that the driving disk 14 and the passive disk 16 are kept at a certain gap, thereby separating the first transmission shaft 13 and The second transmission shaft 17, thereby interrupting the rotation power transmission of the first transmission shaft 13 to the second transmission shaft 17, stops the storage yarn 18 from rotating to stop the yarn filling operation.

In the present embodiment, three light sensors 181 are disposed inside the yarn storage wheel 18, which are infrared emitters; three light sensors 182 are disposed on the outer side of the yarn storage wheel 18, which are infrared receivers. The light sensors (infrared emitters) 181 can emit infrared rays and are irradiated to the outside of the yarn storage wheel 18 through a gap between the storage nails 183 to receive infrared rays by the light sensors (infrared receivers) 182. Thereby, it is judged whether or not the yarn on the yarn storage wheel 18 is sufficient. When only part of the optical signal is interrupted by the yarn or the storage nail 183, it indicates that the yarn is insufficient, and an activation signal is output to turn on the electromagnetic coil 15 to excite it, thereby engaging the driving disk at one end of the first transmission shaft 13. 14 and the passive disk 16 at one end of the second transmission shaft 17 transmits the rotational power of the first transmission shaft 13 to the second transmission shaft 17 for driving the storage yarn wheel 18 to rotate, so that the yarn is wound around the yarn storage wheel 18. The operation of storing yarn (filling yarn).

When all the light sensors (infrared receivers) 182 for receiving have not received the optical signals, it means that the yarn wound on the yarn storage wheel 18 is sufficient, and a closing signal is output to interrupt the excitation of the electromagnetic coil 15, and the separation is performed. The driving disk 14 at one end of the transmission shaft 13 and the driven disk 16 at one end of the second transmission shaft 17 interrupt the rotation power of the first transmission shaft 13 to the second transmission shaft 17, so that the storage yarn wheel 18 stops rotating to stop the storage. Yarn action.

Referring to FIG. 1 to FIG. 6 , a changeover switch 22 is further disposed on the main body 11 . The switch 22 can be directly mounted on the main body 11 or first mounted on a switch base 25 , and then the switch base 25 is disposed on the main body 11 . The power switch 21 can also be mounted on the switch housing 25. The switch 22 is suitably electrically coupled to the clutch B and can be used to switch the control clutch B to the first mode or the second mode. When the changeover switch 22 switches the clutch B to the first mode, the clutch B can normally perform the separation and engagement (as shown in FIGS. 3 and 4), that is, when the light sensors 181 and 182 detect the storage yarn. When the yarn on the 18 is insufficient, the electromagnetic coil 15 is turned on to engage the driving disk 14 at one end of the first transmission shaft 13 and the passive disk 16 at one end of the second transmission shaft 17, so that the rotational power of the first transmission shaft 13 is transmitted to the second. The drive shaft 17 is configured to drive the yarn storage wheel 18 to rotate, so that the yarn is wound around the yarn storage wheel 18 for storing the yarn. When the light sensors 181 and 182 detect that the yarn on the yarn storage wheel 18 is sufficient, the driving disk 14 at one end of the first transmission shaft 13 and the passive disk 16 at one end of the second transmission shaft 17 can be separated to make the first transmission. The rotation power transmitted from the shaft 13 to the second transmission shaft 17 is interrupted, and the yarn storage wheel 18 is stopped to stop the yarn storage operation, so that the yarn feeding device has a function of irregular yarn feeding.

When the changeover switch 22 switches the clutch B to the second mode, the clutch B can only be fixedly engaged (as shown in FIG. 4), that is, the conductive solenoid 15 is fixed to maintain the drive plate 14 that engages one end of the first drive shaft 13 with The passive disk 16 at one end of the second transmission shaft 17 transmits the rotational power of the first transmission shaft 13 to the second transmission shaft 17 for driving the storage yarn wheel 18 to rotate, so that the yarn is wound around the storage yarn storage wheel 18 for storage. The action of the yarn. That is, regardless of whether the yarn on the yarn storage roller 18 is sufficient or not, the clutch B is fixed in the engaged state, so that the yarn feeding device has the function of regular yarn feeding (general yarn feeding).

As shown in FIG. 1 and FIG. 6 , the present invention is further provided with a fixing member 23 , and the fixing member 23 is fixed on the body 11 , that is, the fixing member 23 can be fixed on the body 11 relative to the fixing portion 111 by screwing or the like. One end. The fixing member 23 is provided with a threading member 24, and the yarn guiding member 114 can also be disposed on the fixing member 23. The threading member 24 can be a C-shaped ring body, so that the yarn can be inserted into the threading member 24. The threading member 24 is located below one side of the yarn storage wheel 18, that is, the threading member 24 is lower than the bottom surface of the yarn storage wheel 18. The threading member 24 can provide a threading function, and is dedicated to the use of the clutch B in the second mode when the yarn feeding device performs yarn feeding and yarn guiding during regular yarn feeding (as shown in Fig. 6). If the clutch B is in the first mode, the yarn feeding device performs irregular yarn feeding, and the yarn feeding member 24 does not need to be used (as shown in Fig. 1).

The yarn feeding device of the present invention can be applied to a computer jacquard machine for irregular yarn feeding, and does not need to provide a motor inside the yarn feeding device, so that the volume thereof is not increased and the manufacturing cost is increased, and the electromagnetic coil 15 consumes electricity. The amount is low, and the power saving effect of reducing power consumption is achieved.

The passive disk 16 of the present invention is connected to one end of the second transmission shaft 17, and the driving disk 14 is connected to one end of the first transmission shaft 13. The first transmission shaft 13 and the second transmission shaft 17 are oppositely and spaced apart to form a two-stage type. Drive shaft design. Therefore, when the electromagnetic coil 15 is de-energized, the driving disk 14 is separated from the passive disk 16, and there is no contact between the second transmission shaft 17 and the first transmission shaft 13, so that the rotational power can be surely interrupted to ensure the yarn storage. The wheel 18 stops rotating to stop the yarn filling operation.

In the present invention, light sensors 181 and 182 are disposed on the inner side and the outer side of the yarn storage wheel 18. The light sensors 181 and 182 directly transmit and receive signals, and can accurately detect the yarn on the yarn storage wheel 18 to make the yarn storage. An appropriate amount of yarn is maintained on the wheel 18.

The present invention can also provide a one-way control device 20 between the yarn storage wheel 18 and the second transmission shaft 17, and the one-way control device 20 can be a one-way device such as a one-way bearing or a one-way tooth, so that the yarn storage wheel 18 only It can rotate in one direction without inversion, to avoid loosening of the yarn and damage to the mechanism. The one-way control device 20 is sleeved outside the second transmission shaft 17 and can be detached to facilitate the direction change of the one-way control device 20.

The storage yarn storage wheel 18 of the present invention can be provided with an accommodating space 188 for forming the hollow body and the opening 189 at the top, so that the light sensor 181 (yarn detecting device) can be disposed inside the yarn storage wheel 18. To make its application more varied. The yarn storage wheel 18 of the present invention forms a hollow body, which can reduce the weight of the yarn storage wheel 18 and even the entire yarn feeding device, so as to facilitate handling and installation.

The yarn storage wheel 18 of the present invention can adopt a combined design, and is composed of an upper wheel body 185, a lower wheel body 186 and a plurality of storage nails 183. The components can be made of different materials, and the material is elastically changeable. The upper wheel body 185 and the lower wheel body 186 can be made of a material such as plastic, and have a cost reduction effect.

The present invention is provided with a changeover switch 22, which is suitably electrically connected to the clutch B, and can be used to switch the control of the clutch B to the first mode or the second mode. When the changeover switch 22 switches the clutch B to the first mode, the clutch B can normally perform the operation of separating and engaging, so that the yarn feeding device has the function of irregular yarn feeding. When the changeover switch 22 switches the clutch B to the second mode, the clutch B is fixed in the engaged state, so that the yarn feeding device has a function of regular yarn feeding.

The above is only the preferred embodiment of the present invention, and is not intended to limit the scope of the invention, and the equivalents of the present invention and the equivalents of the drawings are all included in the present invention. Within the scope of protection, it is given to Chen Ming.

1. . . Yarn feeding device

11. . . Ontology

111. . . Fixed part

112. . . Yarn guide

113. . . Yarn guide

114. . . Yarn guide

115. . . Yarn guide

116. . . Bearing

117. . . Fixed seat

118. . . Locating slot

12. . . Pulley

13. . . First drive shaft

131. . . Base

14. . . Disk drive

141. . . Elastic component

15. . . Electromagnetic coil

16. . . Passive disk

161. . . Friction surface

17. . . Second drive shaft

171. . . Bearing

18. . . Storage wheel

181. . . Light sensor

182. . . Light sensor

183. . . Storage nail

184. . . Yarn press

185. . . Upper wheel

186. . . Lower wheel body

188. . . Housing space

189. . . Opening

19. . . washer

20. . . One-way control device

twenty one. . . switch

twenty two. . . Toggle switch

twenty three. . . Fastener

twenty four. . . Yarn

25. . . Switch block

A. . . Guide bevel

B. . . clutch

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a perspective view of a yarn feeding device of the present invention (switching to an irregular yarn feeding state).

2 is a perspective exploded view of the yarn feeding device of the present invention.

Fig. 3 is a cross-sectional view showing the clutch of the yarn feeding device of the present invention in a separated state.

Figure 4 is a cross-sectional view showing the state in which the clutch of the yarn feeding device of the present invention is engaged.

Figure 5 is a block diagram of the yarn feeding device of the present invention.

Figure 6 is a perspective view of the yarn feeding device of the present invention (switched to a regular yarn feeding state).

1. . . Yarn feeding device

11. . . Ontology

111. . . Fixed part

112. . . Yarn guide

113. . . Yarn guide

114. . . Yarn guide

115. . . Yarn guide

12. . . Pulley

18. . . Storage wheel

183. . . Storage nail

184. . . Yarn press

188. . . Housing space

twenty one. . . switch

twenty two. . . Toggle switch

twenty three. . . Fastener

twenty four. . . Yarn

25. . . Switch block

Claims (19)

A dual-purpose yarn feeding device comprising: a body; a first transmission shaft rotatably disposed on the body; a second transmission shaft rotatably disposed on the body; a clutch disposed on the body Between the first transmission shaft and the second transmission shaft; a storage yarn wheel connected to the second transmission shaft, a light sensor is disposed on the inner side and the outer side of the yarn storage wheel, respectively; and a switch is disposed on the The switch is electrically connected to the clutch, and the switch is configured to switch to control the clutch to be in a first mode or a second mode, and when the clutch is switched to the first mode, the clutch performs an action of separating or engaging. When the clutch is switched to the second mode, the clutch is fixedly engaged. The dual-purpose yarn feeding device according to claim 1, wherein the body is fixed with a fixing member, and the fixing member is provided with a threading member, and the threading member is located at a lower side of the yarn storage wheel, The threading member is used when the clutch is switched to the second mode. The dual-purpose yarn feeding device of claim 2, wherein the fixing member is fixed to the body by a screw lock. The dual-purpose yarn feeding device of claim 2, wherein the body has a fixing portion at one end thereof, and the fixing member is fixed to one end of the fixing portion with respect to the fixing portion, and the body is provided with a plurality of guiding yarns. Pieces. The dual-purpose yarn feeding device according to claim 2, wherein the threading member is a C-shaped ring body. The dual-purpose yarn feeding device according to claim 1 or 2, wherein the switch is mounted on a switch seat, and the switch seat is disposed on the body. The dual-purpose yarn feeding device according to claim 6, wherein the body is provided with a power switch, and the power switch is mounted on the switch seat. The dual-purpose yarn feeding device of the first or second aspect of the invention, wherein the storage yarn wheel has an accommodation space formed therein, and an opening is formed in the top of the storage yarn, the opening is in communication with the accommodation space, A light sensor inside the yarn storage wheel is disposed in the accommodating space. The dual-purpose yarn feeding device of claim 8, wherein the yarn storage wheel has an upper wheel body, a lower wheel body and a plurality of storage nails, wherein the two ends of the storage nails are respectively inserted The upper wheel body and the lower wheel body are located inside the storage nails, and the opening is disposed on the upper wheel body. The dual-purpose yarn feeding device according to claim 9, wherein the outer edge of the lower wheel is provided with a yarn guiding slope. The dual-purpose yarn feeding device according to claim 1 or 2, wherein the yarn storage wheel is provided with a yarn presser that is lifted and lowered, the yarn presser being a ring-shaped body, and the yarn press is pressed The lower edge of the yarn storage wheel. The dual-purpose yarn feeding device according to claim 1 or 2, wherein the light sensor inside the yarn storage wheel is an infrared emitter or an infrared receiver, and the light sensor outside the yarn storage wheel is infrared receiving Or infrared transmitter. The dual-purpose yarn feeding device of claim 1 or 2, wherein a one-way control device is disposed between the yarn storage wheel and the second transmission shaft. The dual-purpose yarn feeding device according to claim 1 or 2, wherein the clutch is disposed in the body, the clutch includes a fixing base, a driving plate, an electromagnetic coil, a washer and a passive disk. The fixing base is disposed in the body, the first transmission shaft is rotatably disposed on the fixing base, the driving disk is coupled to one end of the first transmission shaft, the electromagnetic coil is disposed in the body, the second transmission The shaft is rotatably disposed on the electromagnetic coil, the gasket is disposed between the fixing base and the electromagnetic coil, the passive disk is disposed opposite to the driving plate, and the passive disk is located between the driving plate and the electromagnetic coil, A passive disk is coupled to one end of the second drive shaft. The dual-purpose yarn feeding device of claim 14, wherein the housing has a receiving groove formed therein, the fixing base, the first transmission shaft and the driving plate are assembled into an upper module, the electromagnetic coil The passive disk and the second drive shaft are assembled into a lower module, and the upper module, the washer and the lower module are mounted in the receiving slots of the body. The dual-purpose yarn feeding device of claim 14, wherein the lower end of the first transmission shaft is provided with a base, the driving plate is disposed at the bottom of the base, and the driving disc and the base are provided with elasticity element. The dual-purpose yarn feeding device of claim 14, wherein the first transmission shaft is pivotally connected to the fixing seat by two bearings. The dual-purpose yarn feeding device of claim 14, wherein the second transmission shaft is pivotally connected to the electromagnetic coil by two bearings. The dual-purpose yarn feeding device of claim 14, wherein the first transmission shaft and the second transmission shaft are disposed opposite each other.