TWI382109B - Yarn storage device with electromagnetic clutch and yarn detection method - Google Patents

Description

Electromagnetic clutch storage device and yarn detecting method thereof

The invention relates to a yarn storage device and a yarn detecting method thereof, in particular to an electromagnetic clutching yarn storage device and a yarn detecting method thereof.

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 storage device does not need to use an active motor, but uses a strip equipped with a knitting machine as a power source, which simplifies the mechanism, reduces the volume, and reduces the cost.

In order to make the yarn accumulator 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.

In addition, Taiwan Patent Publication No. 263485 discloses a method for detecting yarn supply in a yarn storing and feeding device, and a yarn storing and feeding device, the yarn storing and feeding device, Having a drum-shaped storage body defining a storage surface for supplying yarn from a winding of the yarn, and having at least first and second storage surface circumferential portions, and further comprising at least one sensor for generating a signal, a predetermined scanning area facing the storage surface, which is used to detect the movement of the boundary of the yarn supply, characterized in that the first and second circumferential portions of the storage surface are specially constructed so that they are scanned The characteristics are different from each other, and are characterized in that at least two sensors are provided, which are basically arranged in the circumferential direction of the storage body and are spaced in a specific manner so that the scanning characteristic of the circumferential portion of the first storage surface is When the scanning area is removed without yarn supply, or when there is a yarn supply in the scanning area and covers the circumferential portion, it can be scanned by a sensor and at the same time the scanning portion of the circumferential portion of the second storage surface When the cover is removed when the supply of the yarn scanning zone, or scanning region has a yarn supplying portion and covering the circumference, in the other sensors of the sensor can be scanned. However, the sensor is sensed by reflection, and it is difficult to accurately detect the yarn on the drum-shaped storage body (storage wheel), and the first and second circumferential portions of the storage surface are specially constructed, resulting in manufacturing. The increase in cost.

The reason is that the present inventors have felt the above-mentioned problems, and have devoted themselves to research and cooperated with the application of the theory, and finally proposed a present invention which is rational in design and effective in improving the above-mentioned defects.

The main object of the present invention is to provide an electromagnetic clutch yarn storage device and a yarn detecting method thereof, which can increase the volume of the yarn storage device and increase the manufacturing cost, are not easy to malfunction, and can reduce power consumption. the amount.

Another object of the present invention is to provide an electromagnetic clutch storage device and a yarn detecting method thereof. When the electromagnetic coil is de-energized, the rotational power can be surely interrupted, and the storage yarn stop is stopped to stop the yarn filling. action.

Another object of the present invention is to provide an electromagnetic clutching yarn storage device and a yarn detecting method thereof, which can accurately detect the yarn on the yarn storage wheel and maintain the proper amount of the yarn in the yarn storage wheel, and The storage yarn wheel has a simple construction and does not increase the manufacturing cost.

In order to achieve the above object, the present invention provides a yarn detecting method for an electromagnetic clutching yarn storage device, comprising the steps of: providing a yarn accumulator device having a body, an electromagnetic coil disposed on the body, a first transmission shaft and a second transmission shaft rotatably disposed on the body, one end of the first transmission shaft is connected to a driving disc, and one end of the second transmission shaft is connected to a passive disc, the passive disc and the driving The first transmission shaft and the second transmission shaft are spaced apart from each other, and the second transmission shaft is connected to a storage yarn wheel, and the storage yarn has a plurality of storage nails arranged at intervals, and the storage yarn inner side The light sensors are respectively disposed on the outer side, and the light sensors comprise light sensors for transmitting and receiving; and the yarns are wound around the outer edges of the storage pins of the yarn storage wheel; when only part of the light signals are When the yarn or the storage nail is interrupted, it indicates that the yarn is insufficient, and a start signal is output to turn on the electromagnetic coil to excite the magnetic coil to engage the driving disc and the passive disc to rotate the first transmission shaft. Pass to the second a moving shaft for driving the yarn storage wheel to rotate, so that the yarn is wound around the yarn storage wheel for storing yarn; and when all the light sensors for receiving do not receive the light signal, indicating that the yarn storage wheel is If there are too many wound yarns, a closing signal is output to interrupt the excitation of the electromagnetic coil, and the driving disk and the passive disk are separated, so that the first driving shaft transmits the rotating power to the second transmission shaft to interrupt the storage. The yarn wheel stops rotating to stop the yarn storage operation.

The invention further provides an electromagnetic clutch storage device, comprising: a body provided with a yarn guiding member; an electromagnetic coil disposed on the body; a first transmission shaft rotatably disposed on the body a driving plate connected to one end of the first transmission shaft; a passive disk disposed opposite to the driving plate; a second transmission shaft having one end connected to the passive disk, the second transmission shaft being rotatable Positioned on the body, the first transmission shaft and the second transmission shaft are spaced apart; and a yarn storage wheel coupled to the second transmission shaft.

The invention has the following beneficial effects: the yarn storage device of the invention can be applied to a computer jacquard machine with irregular yarn feeding, and does not need to provide a motor inside the yarn storage device, so the structure is simple and does not make its volume. It becomes larger 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.

The passive disk of the present invention is connected to one end of the second transmission shaft, and the driving disk is connected to one end of the first transmission shaft. The first transmission shaft and the second transmission shaft are spaced apart to form a two-stage transmission shaft design. When the electromagnetic coil is de-energized, the driving disk is separated from the passive disk, and there is no contact between the second transmission shaft and the first transmission shaft, so that the rotational power can be surely interrupted to ensure that the storage wheel stops. Turn to stop the yarn filling action.

The invention can be provided with light sensors on the inner side and the outer side of the yarn storage wheel, the light sensors can accurately detect the yarn on the yarn storage wheel, and maintain an appropriate amount of yarn on the yarn storage wheel, and the storage yarn wheel The construction is simple and does not increase manufacturing costs.

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

Referring to the first, second, second, third and third A drawings, the present invention provides an electromagnetic clutch storage device, the yarn storage device 1 comprising a body 11 and a pulley 12 A first 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 has a fixing portion 111 which 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.

The pulley 12 is centrally connected to the upper end of the first transmission shaft 13, and the pulley 12 and the first transmission shaft 13 are synchronously rotated, the two bearings 116 are preset to a fixing base 117, and the fixing base 117 is fixed to the body. 11. The bearing 116 is disposed on the body 11. The first transmission shaft 13 is pivotally connected to the body 11 by the two bearings 116, 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 engage a belt member such as a belt (not shown) to drive the pulley 12 and the first transmission shaft 13 to rotate.

The lower end of the first transmission shaft 13 is provided with a disk-shaped base 131. The driving plate 14 is disposed at the bottom of the base 131 to connect the driving plate 14 to one end (lower end) of the first transmission shaft 13. The driving disk 14 has a circular disk shape, and the driving disk 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 is disposed between the driving plate 14 and the base portion 131. The elastic member 141 can be an elastic body such as a spring piece, and the elastic member 141 can provide a resetting force for the driving disk 14 to move upward.

The electromagnetic coil 15 and the passive disk 16 are located below the driving disk 14, and the passive disk 16 is located between the driving disk 14 and the electromagnetic coil 15. The electromagnetic coil 15 is disposed in a cylinder 19, and the cylinder 19 is appropriately Mounted in the body 11 , the electromagnetic coil 15 is fixedly disposed on the body 11 , the passive disk 16 is rotatably disposed above the electromagnetic coil 15 , and the passive disk 16 is disposed opposite to the driving disk 14 , The passive disk 16 is a piece of iron. The top of the passive disk 16 can be further provided with a ring-shaped rough surface 161 for increasing the friction force to prevent the passive disk 16 from coming into contact with the driving disk 14. Slip. 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 are driven. The disk 14 is adsorbed.

The second transmission shaft 17 is a cylinder. One end (upper end) of the second transmission shaft 17 is fixedly connected to the center of the passive disk 16. The upper end of the second transmission shaft 17 is pivotally connected to the electromagnetic body by two bearings 171. The coil 15 is configured to rotatably mount the second transmission shaft 17 and the passive disk 16 on the electromagnetic coil 15. The second transmission shaft 17 and the passive disk 16 are also rotatably disposed in the body 11. The lower end of the second transmission shaft 17 protrudes from the bottom of the electromagnetic coil 15, and the storage yarn 18 is connected to the lower end of the second transmission shaft 17, so that the second transmission shaft 17 can be used to drive the storage yarn storage wheel 18 to rotate. 18 has a plurality of spaced storage nails 183, and the yarns can be wound around the outer edges of the storage nails 183.

Further, in the present invention, light sensors 181 and 182 are respectively disposed inside and outside the yarn storage wheel 18. The number of the light sensors 181 and 182 is not limited, and may be one, two or three or the like. The light sensor 181 inside the yarn storage wheel 18 can be an infrared emitter or an infrared receiver, and the light sensor 182 outside the yarn storage wheel 18 can be an infrared receiver or an infrared emitter. The light sensors 181, 182 can be used to detect 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 make it energized.

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 transmitting the first and the first The two transmission shafts 13, 17 drive the storage yarn storage wheel 18 to rotate, so that the yarn storage wheel 18 is used to drive the yarn for yarn storage and yarn feeding.

As shown in the third and third A diagrams, when the electromagnetic coil 15 is energized, the passive disk 16 is absorbingly engaged with the driving disk 14, thereby engaging the first transmission shaft 13 and the second transmission shaft 17, thereby The rotational power of the first transmission shaft 13 is transmitted downward to the second transmission shaft 17 for driving the storage drum 18 to rotate, so that the yarn is wound around the storage yarn 18 to continue the yarn storage operation. .

As shown in the second figure and the second figure A, when the electromagnetic coil 15 is powered off, the driving disk 14 is 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. a certain gap, thereby separating the first transmission shaft 13 and the second transmission shaft 17, so that the rotation power of the first transmission shaft 13 transmitted to the second transmission shaft 17 is interrupted, so that the yarn storage wheel 18 stops rotating. To stop the yarn filling action.

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 using the light sensors (infrared receivers) 182. Thereby, it is judged whether or not the yarn on the yarn storage wheel 18 is sufficient.

Referring to the first to third figures, the present invention further provides a yarn detecting method for an electromagnetic clutching yarn storage device, comprising the steps of: firstly providing a yarn accumulator device 1 having a yarn storage device 1 The main body 11 , an electromagnetic coil 15 disposed on the body 11 , a first transmission shaft 13 rotatably disposed on the body 11 , and a second transmission shaft 17 rotatably disposed on the body 11 , the first transmission shaft One end of the drive shaft 14 is connected to a drive plate 14 . One end of the second drive shaft 17 is connected to a passive disk 16 . The passive disk 16 is disposed opposite to the drive plate 14 . The first drive shaft 13 and the second drive shaft 17 are spaced apart. The yarn storage wheel 18 has a plurality of storage yarns 183, and the light storage sensors 181 and 182 are disposed on the inner side and the outer side of the yarn storage wheel 18, and the light sensors 181 and 182 are respectively disposed. The light sensor for transmitting and receiving is included; then the yarn (not shown) is wound around the outer edges of the storage nails 183; as shown in the fourth and fifth figures, D1, D2 and D3 respectively represent three groups. The signal chains generated by the light sensors 181 and 182, each of the signal chains D1, D2 and D3 are successively The high signal gradation is composed of a low signal gradation, the high signal gradation indicates that the optical sensor (infrared receiver) 182 receives the optical signal (infrared), and the low signal gradation indicates that the optical sensor (infrared receiver) 182 is not Received a light signal. 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); and when all the light sensors (infrared receivers) 182 for receiving have not received the optical signal, indicating that there are too many yarns wound on the yarn storage wheel 18, a closing signal is output. In order to interrupt the excitation of the electromagnetic coil 15, the drive 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 are separated, and the rotational power of the first transmission shaft 13 transmitted to the second transmission shaft 17 is interrupted. The yarn storage wheel 18 is stopped to stop the yarn storage operation.

Referring to the sixth figure, in the three sets of light sensors (infrared receivers) 182, as long as a group of light sensors (infrared receivers) 182 receive optical signals (infrared rays), the group of light sensors (infrared receivers) 182 enters the conduction state. At this time, a ground voltage Vg is sent to the first input terminal (-) of a comparator U2A via the set of light sensors (infrared receivers) 182 that are turned on. The second input terminal (+) of the comparator U2A receives a threshold voltage Vth, and compares the calculated ground voltage Vg with the threshold voltage Vth, thereby outputting the start signal for starting the electromagnetic coil 15.

In addition, when all of the light sensors (infrared receivers) 182 have not received the optical signals, all of the light sensors (infrared receivers) 182 are all turned off. At this time, a predetermined high voltage DC24V is sent to the first input terminal (-) of the comparator U2A. The comparator U2A compares and calculates the preset high voltage DC24V and the threshold voltage Vth, and further outputs the off signal for turning off the electromagnetic coil 15.

The electromagnetic clutching yarn storage device of the invention can be applied to a computer jacquard machine with irregular yarn feeding, and does not need to provide a motor inside the yarn storage device, so that the volume is not increased and the manufacturing cost is increased. Moreover, the electromagnetic coil 15 consumes less power and has a power saving effect of reducing power consumption.

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 two. The segment drive shaft design does not need to be disposed inside the first transmission shaft 13 . 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. In order to ensure that the yarn storage wheel 18 stops rotating to stop the yarn filling operation.

Furthermore, 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. The proper amount of yarn is maintained on the yarn storage wheel 18, and the yarn storage wheel 18 does not need to be changed in design, and the structure is simple, and the manufacturing cost is not increased.

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 storage device

11. . . Ontology

111. . . Fixed part

112. . . Yarn guide

113. . . Yarn guide

114. . . Yarn guide

115. . . Yarn guide

116. . . Bearing

117. . . Fixed seat

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

19. . . Cylinder

The first figure is a perspective view of the yarn accumulator device of the present invention.

The second figure is a cross-sectional view of the yarn accumulator device of the present invention.

The second A is a partial cross-sectional view of the second figure.

Figure 3 is a cross-sectional view showing another state of the yarn accumulator device of the present invention.

The third A is a partial cross-sectional view of the third figure.

The fourth figure is a signal waveform diagram (1) of the light sensor of the present invention.

The fifth figure is a signal waveform diagram (2) of the optical sensor of the present invention.

Figure 6 is a circuit diagram of the yarn accumulator device of the present invention.

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

19. . . Cylinder

116. . . Bearing

117. . . Fixed seat

Claims (12)

A yarn detecting method for an electromagnetic clutching yarn storage device, comprising the steps of: providing a yarn accumulator device having a body, an electromagnetic coil disposed on the body, and a rotatably disposed on the body a first drive shaft and a second drive shaft, the lower end of the first drive shaft is provided with a disk-shaped base, and a drive plate is disposed at the bottom of the base, and an elastic component is disposed between the drive plate and the base One end of the second transmission shaft is connected to a passive disk, the passive disk is disposed opposite to the driving disk, and the passive disk is located between the driving plate and the electromagnetic coil, and the first transmission shaft and the second transmission shaft The second transmission shaft is connected to a storage yarn, and the storage yarn has a plurality of storage nails arranged at intervals. The light sensor is disposed on the inner side and the outer side of the storage wheel respectively. The device comprises a light sensor for transmitting and receiving; winding the yarn around the outer edges of the storage pins of the storage wheel; and when only part of the optical signal is blocked by the yarn or the storage nail, the yarn is indicated Insufficient, this will output a start Transmitting the electromagnetic coil to excite the electromagnetic coil to engage the driving disc and the passive disc to transmit the rotational power of the first transmission shaft to the second transmission shaft to drive the storage drum to rotate, so that the yarn is wound around The yarn storage machine performs the operation of storing the yarn; and when all the light sensors for receiving do not receive the light signal, indicating that the yarn wound on the yarn storage wheel is excessive, a closing signal is output to interrupt the electromagnetic coil. Excitation, separating the drive plate and the passive disk, interrupting the rotation power of the first transmission shaft to the second transmission shaft, and stopping the storage wheel to stop the yarn storage operation. The yarn detecting method of the electromagnetic clutching yarn storage device according to claim 1, wherein the light sensor inside the yarn storage wheel is infrared light emitting The light sensor outside the yarn storage wheel is an infrared receiver. The yarn detecting method of the electromagnetic clutching yarn storage device according to the first aspect of the invention, wherein the light sensor inside the yarn storage wheel is an infrared receiver, and the light sensor outside the yarn storage wheel is infrared launcher. An electromagnetic clutch storage device includes: a body on which a yarn guiding member is disposed; an electromagnetic coil disposed on the body; and a first transmission shaft having a disk-shaped base at a lower end thereof The first drive shaft is rotatably disposed on the body; a drive plate is disposed at a bottom of the base; a passive disk is disposed opposite the drive plate, and the passive disk is located at the drive plate and the electromagnetic coil a second transmission shaft, one end of which is connected to the passive disk, the second transmission shaft is rotatably disposed on the body, the first transmission shaft and the second transmission shaft are relatively spaced upwardly and downwardly; a yarn storage wheel coupled to the second drive shaft. The electromagnetic clutch device of claim 4, wherein the first transmission shaft is pivotally connected to a fixing seat, and the fixing seat is fixed to the body. The electromagnetic clutch storage device of claim 4, wherein the first transmission shaft is coupled to a pulley. The electromagnetic clutch device of claim 4, wherein the electromagnetic coil is disposed in a cylinder, and the cylinder is mounted to the body. An electromagnetic clutch storage device as described in claim 4 Wherein the top of the passive disk is provided with a rubbing surface. The electromagnetic clutch storage device of claim 4, wherein the second transmission shaft is pivotally connected to the electromagnetic coil by a bearing. The electromagnetic clutch device of the electromagnetic clutch according to claim 4, wherein a light sensor is disposed on the inner side and the outer side of the yarn storage wheel, respectively. The electromagnetic clutch device of claim 10, wherein the light sensor inside the yarn storage wheel is an infrared emitter, and the light sensor outside the yarn storage wheel is an infrared receiver. The electromagnetic clutch storage device according to claim 10, wherein the light sensor inside the yarn storage wheel is an infrared receiver, and the light sensor outside the yarn storage wheel is an infrared emitter.