JP2685662B2 - Stator coil knitting machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stator coil knitting machine for an electric motor.

[0002]

2. Description of the Related Art Conventional stator coil knitting machines are often composed of a gear mechanism or a Geneva stop gear mechanism. For example, Japanese Patent Publication No. Sho 45-19096
No. 5, similarly as binding yarn processing devices for knitting machines, for example, Japanese Utility Model Publication No. 57-49561 and Japanese Utility Model Publication No. 57-49562.
There is a number.

[0003]

However, the knitting and binding machine of the former conventional example is composed of many gears and a Geneva stop gear mechanism that requires high accuracy, and the knitting and binding machine of the latter two examples is similar to the binding processing apparatus. Since all of the parts are configured to operate by mechanical cooperation, it is difficult to miniaturize and it is difficult to finely adjust. Further, since it is operated by many gears and cams in cooperation with each other, there are drawbacks such as large noise.

[0004]

In order to solve the above problems, the present invention is directed to a stator coil knitting machine in which a needle thread guide tube and a bobbin thread guide tube are moved up and down within a center post that holds a stator. Means, means for laterally moving the upper thread guide tube and the lower thread guide tube in the center post, and advancing upper and lower knitting needles toward an upper coil and a lower coil of a stator on the center post, and And a means for rotating the two knitting needles at a fixed angle, an indexing means for moving the stator on the center post to a fixed angle, and a means for controlling the operation of each means. The means for moving the guide tube up and down are connected to the lower ends of the upper thread guide tube and the lower thread guide tube, respectively, and are rotated in opposite directions about the axis by the swing of the cross arm. A pair of arms and a cylinder provided between one arm and the needle thread guide tube, and the means for rotating the guide tube is slidable and rotatable on the needle thread guide tube and the bobbin thread guide tube. A cylindrical shaft body that is immovably engaged and a rotary cylinder that rotationally drives the cylindrical shaft body, and the means for advancing and retracting the knitting needles are provided with a moving table to which a guide rod for connecting both knitting needles is attached as a center. A means for rotating the knitting needle by a certain angle, which is a cylinder driven in a direction to move toward and away from the post, and an adjusting plate which is connected to the movable table through the cylinder and is driven by the same drive source as the cross arm. Are a pair of servomotors provided in the vicinity of the upper and lower rotatably held knitting needles, and the output shafts are connected to the respective knitting needle mounting shafts, and the above-mentioned stator indexing means holds the stator at the center. ,support A feed gear rotatably held by and an indexer engaged with the feed gear are used, and the means for controlling the operation of each of the above means is the rotation speed of the rotation converting mechanism for driving the cross arm. It is characterized by an encoder for detection and a microcomputer for sending an operation command signal to each of the above means on the basis of a signal from this encoder.

[0005]

In the center post that holds the stator, the upper thread and the lower thread are moved to corresponding positions of the upper coil or the lower coil of the stator, and at the same time, the upper thread and the lower thread are prevented from coming into and out of the entry positions of the upper knitting needle and the lower knitting needle. And move the bobbin thread laterally. At the same time, the upper knitting needle and the lower knitting needle are advanced toward the upper coil and the lower coil of the stator, respectively, and the respective knitting needles are advanced into the center post via the upper coil and the lower coil. Then, by moving the upper and lower threads that are already on standby through the upper side or the lower side of the knitting needle in the lateral direction so that the upper and lower threads are entangled with the respective knitting needles, and then the knitting needles are rotated by a required angle, for example, 90 °. while retracted, the next indexing means be KaiSusumu by one pitch the stator operates, the operation of Bei forte the entry of the next knitting needle ends, the upper thread and Shitaito respectively in this way the center The work is completed by repeating the above operation while moving it up and down in the post, and then pulling out the upper thread and the lower thread to the position of the heat cutter or guiding them to a state where they can interact with the heat cutter, and then the heat cutter. It melts due to.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the embodiments shown in the drawings. A rotation converting mechanism 2 is installed on a lower substrate 1, and two laterally long arms 4 ₂ are provided outside the rotation converting mechanism _2. , 4 ₄ and the slightly shorter two arms 4 ₁ and 4 ₃ respectively, projectingly mounted on the cross arm 3, the cross arm 3 is pivotally mounted on the upper surface of the conversion mechanism 2.
And the pulley 82 is linked to the main motor.
Rotate in a predetermined direction via belt 83 (not shown)
The cross arm 3 is repeatedly oscillated by (shiftable).

On the other side of the substrate 1, a pair of bearings 5,
An arm 7 is fixed to one end of a shaft 6 pivotally supported by 5, and the arm 7 and the arm 4 ₃ are connected by a link 8. Further, a pair of arms 9 and 9 are provided near the both ends on the shaft 6.
Are fixed to face each other, and are repeatedly rocked together with the swing of the shaft 6, and an upward arm 11 and a lateral arm 13 are provided between the both arms 9, 9 on the shaft 6.
Loosely fitted over the pivot lever to the shaft 6 comprising a, a tip and the arm 4 ₁ of the one arm 11 and connected by link 12, allowed to swing the arm 13 by the swing of the cross arm 3 .

Directly above the arms 9, 9 and 13, a center post 23 (FIG. 9) is attached to a support plate 33 above the upper substrate 34 which is parallel to the lower substrate 1 via a fixture 24. A cylindrical shaft body 21 in which a lower thread guide tube 19 provided upright and projecting a lower yarn supplying nozzle 26 in the center post 23 is rotatably inserted into a lower portion of the center post 23 through a bearing. An upper thread guide tube 17 having an upper end and a thread supply nozzle 28 projecting from the upper end is inserted into the lower thread guide tube 19 and held therein. The lower thread guide tube 19 is rotated together with the lower thread guide tube 19 and is held vertically movable with respect to the guide tube 19. Both the upper thread and the lower thread pass through the upper thread guide pipe 17, and the upper thread is the upper thread.
8 is guided outward from the slit 23 'provided in the center post 23, and the lower thread passes through the slit 17' formed in the upper thread guide tube 17 and is fed by the yarn feeding nozzle 26 in the same manner as the slit 23 of the center post 23. Is led from the outside. Then, at the lower end of the cylindrical shaft body 21, a gear 22 meshing with a gear 35 of a rotary cylinder (rotary actuator) 36 supported between a support plate 33 and a bearing body 37 on a substrate 34 is fixedly installed. The cylindrical shaft body 21 is rotated by repetitive rotation of the swing shaft 38 that supports the cylinder 36. Further, in the middle between the upper and lower sides of the center post 23, a feed gear 29 that holds the stator a in the center is supported. 31
The pin-on gear 30 and the feed gear 29 provided on the output shaft of the motor 32 of the indexer 25 attached to the support plate 31 are engaged with each other and are intermittently fed at a predetermined angle. There is.

The tip of the arm 39 attached to the lower end of the swing shaft 38 and the relay shaft 75 pivotally mounted on the upper substrate 34 are provided.
A link 78 is connected to the eccentricity adjustment plate 77 at the lower end of the relay shaft 75, and the sprocket 76 on the relay shaft 75 is rotated to rotate the adjustment plate 77 and swing the arm 39. On the other hand, the guide rod 1 is attached to the lower end of the lower thread guide tube 19.
A ring 18 that allows the rotation of the ring 9 and moves up and down together with the guide tube 19 is attached to both sides of the ring 18.
The upper ends of the pair of lifting and lower connecting rods 10 and 10 are connected to each other through 0 and 20, and the lower ends of the lifting and lower connecting rods 10 and 10 are pivotally attached to the tips of the arms 9 and 9 on the shaft 6, respectively. The bobbin thread guide tube 19 is moved up and down by oscillating. Further, the lower end of the upper thread guide pipe 17 is held by a sliding plate 15 straddled between the elevating and lowering rods 10 and 10 so as to move up and down by a connecting fitting 16 so as to move up and down together with the sliding plate 15. If it can rotate with respect to the moving plate 15, it is tightened. The upper ends of the piston rods of the pair of cylinders 14 are fixed on both sides of the sliding plate 15 with the upper thread guide tube 17 interposed therebetween, and the lower ends of the cylinders 14 are pivotally connected to both sides of the arm 13 of the swing lever. The upper thread guide tube 17 is moved up and down by swinging the arm 13.

Next, supporting machine frames 40, 40 are erected on the side of the center post 23 on the upper substrate 34, that is, on the side rear part of the needle thread guide tube 17, and the supporting machine frames 40, 40 are provided in front of the supporting machine frames 40, 40, respectively. Guide rails 41, 41 are laid vertically (FIGS. 1 and 2), and sliding members 42, 43 and 57,
The support plates 44 and 59 via the guide rail 4
Wear it so that it moves up and down along 1,41. Communicating rod 79 and which is pivotally mounted the lower end to the arm 4 ₂ of the cross arm 3
The upper end of which the support plate 44 pivotally mounted connecting the upper support plate 59 also at the upper end of the arm 4 ₄ other one of the communication rod 80 pivotally mounted to the lower end of the cross arm 3 with connecting pivot, By reciprocally swinging the cross arm 3, the support plates 44 and 59 are vertically moved in the approaching direction or the separating direction. Guide rails 45, 60 are provided on the front surfaces of the support plates 44, 59 for feeding the gear 2 on the center post 23.
It is laid with a slight taper toward 9.

Then, a movable table 70 is slidably mounted on a guide rail 68 extendingly installed on the upper substrate 34 toward the needle thread guide tube 17 through a pair of sliding members 69, 69, and the movable table 70 is moved. The lower ends of two parallel guide rods 56 are mounted and held on the table 70, and the support plates 44,
Mounting plates 55, 55 'are slidably fitted in positions corresponding to 59, respectively. Since the structures on the mounting plates 55, 55 'are the same, the structure on the mounting plate 55 will be mainly described. The knitting needle mounting shafts 49, (6
2) The bearings 48, 61 of 2) are attached, and the guide rails 45, 60 are fitted to the guide rails 45, 60 via the sliding members 46, 47 fixed to the back surfaces of the bearings 48, 61 to slide laterally. Movable and none,
Further, the pulleys 50, (63) fitted to the rear ends of the knitting needle mounting shafts 49, (62) and the output shaft ends of the servomotors 52, (65) mounted on the sides of the bearings 48, (61). The belts 53 are interlocked with the pulleys 51, (64) fitted to the knitting needle mounting shafts 49, (62) by rotating the servomotors 52, (65). The knitting needles 54, (66) are rotated normally or reversely.
The movable table 70 pivotally connects the piston rod end of the cylinder 72 to the tip of the connecting piece 71 attached to one end, and the end of the cylinder 72 is pierced through the base plate 34 to pivot the relay shaft 75. The adjusting plate 74 is rotatably and pivotally connected by a connecting shaft 73. The relay shaft 75 has a sprocket 76 fixed on the shaft 75 and a rotation converting mechanism 2
The sprocket 81 on the output shaft protruding from the upper surface of the shaft is connected with a chain band, and the pulley 82 fitted on the output shaft is connected to the main motor (not shown) via the belt 83, and the conversion is further performed. The output shaft 85 protruding from the lower surface of the mechanism 2 and the encoder 84 fixedly mounted on the substrate 1 are connected by a chain band or the like to code the rotation of the cross arm 3 and the output shaft.

Next, the thread cutting device will be described.
FIG. 0 is a mechanism diagram in which the end of the bobbin thread is not processed, and the shape of the member is slightly changed from that shown in FIG. 9, but it is essentially the same. And the structure is the support plate 3
A part of 3 is omitted, the cylinder 87 is tilted upward toward the center post 23a, and is attached by a mounting member 86, and a hook portion 92 (FIG. 12) is formed at the tip of the piston rod 90 of the cylinder 87. When the thread pulling fitting 91 is fixed and the piston rod 90 extends, the tip end of the piston rod 90 faces inward from the slit 23a 'of the center post 23a and enters the lower thread nozzle 26a. A supporting metal fitting 88 is extended and projected from the tip of the cylinder 87 in parallel with the piston rod 90, and a heat cutter 89 is fixed to the tip thereof to cut the lower thread.

Further, in order to process the end of the upper thread, as shown in FIG.
As shown in FIG. 11, a support arm 94 is mounted on a column 93 provided between the support plates 31 and 33, a cylinder 96 is screwed to a mounting washer 95 fixed to the tip of the support arm 94, and the cylinder rod is attached to the piston rod end of the cylinder 96. When the heat cutter 97 is installed and the piston rod is projected by the operation of the cylinder 96, the tip end of the heat cutter 97 reaches the side of the coil of the stator a. An upper thread restraining body 100 that moves up and down by a certain distance is loosely fitted in the upper portion of the center post 23a, and the support projection 9 also functions as a thread lock in three directions on the same virtual horizontal plane in the center post 23a.
8 are projected to prevent the needle thread restraining body 100 from falling and to apply a constant pressure to the restraining body 100, the needle thread restraining body 100 and the upper end of the needle thread guide tube 17a are connected. The spaces are linked by a wire 99, and the upper thread restraining body 100 is pushed up or actively pulled down at the upper limit and the lower limit of the lower thread guide tube 17a. In addition, reference numeral 31 ′ in the figure is a notch provided in the support plate 31 in order to eliminate contact with the knitting needle mounting shaft 49.

Next, a series of operations of the above-mentioned apparatus will be described in detail. First, in FIG. 1, a center which is vertically penetrated through the left side of the substrate 34 vertically and is penetrated through the two supporting plates 31, 33 is held. The upper support plate 31 of the post 23 supports the stator a as shown in FIG. 9 with the axis line vertical, that is, the stator a is attached by a stator holding plate 27 (exchanged depending on the stator size) to which a feed gear 29 is attached. The lower coil b ₁ is set lower than the holding plate 27 and the upper coil b ₂ is set higher than the holding plate 27 on the outer circumference of the center post 23, and the number of poles of the stator or the arrangement of coil blocks is set. Set the angle on the control board (not shown).

Thus, when the operation is started on the control panel when the preparation for the start is completed, the main motor (the motor for inputting the power from the belt 83 in FIG. 1) to the rotation conversion mechanism 2 has a predetermined speed. Rotate in a fixed direction. Along with this, the reversing swing operation of the cross arm 3 of the rotation converting mechanism 2 and the output shaft 85 are rotated in a predetermined direction, and at the same time, the cross arm 3 is rotated through the rotation angle and the sprockets 81 and 76. The encoder 84 converts the rotation angle of the relay shaft 75 into a digital signal,
Input to a microcomputer, and send appropriate operation command signals to each part of the mechanism based on a preset program. If therefore the first cross arm 3 is assumed to initially rotated clockwise in FIG. 1, the arm 4 ₁ allowed pivot the arm 11 pushes the link 12 to the left in a counterclockwise direction, along with this arm Since 13 pulls down the cylinder 14, the needle thread guide tube 17 also descends while being supported by the sliding plate 15 by the connecting fitting 16, and the other arm 4
_3, the link 8 moves to the right to rotate the arm 7 in the clockwise direction, and accordingly, the arm 9 also rotates in the clockwise direction to push up the up-and-down connecting rod 10 and connect the connecting screws 20, 20.
The bobbin thread guide tube 19 is raised by the ring 18 through the yarn feed nozzles 2 at the upper ends of the two guide tubes 17 and 19.
As shown in FIG. 9, the upper end positions of the reference numerals 6 and 28 move vertically to the side portions of the lower coil b ₁ and the upper coil b ₂ of the stator a. During this time, the swing shaft 38 simultaneously swings the arm 39 via the link 78 by the operation of the relay shaft 75 which rotates from the rotation converting mechanism 2 via the sprockets 81 and 76, thereby causing the rotary cylinder 36 to rotate at a constant angle. When it is rotated by only, the operation gives a constant rotation to the cylindrical shaft body 21 via the gears 35 and 22. And the cylinder shaft body 2
In the rotation of 1, the lower thread guide tube 19 fitted in the inside and the upper thread guide tube 17 fitted in the lower thread guide tube 19 are both rotated in the same direction so that the upper thread and the lower thread have already been moved (described later). ) It is at a position where it passes through the side of the knitting needle projecting from the slit 23 ′ into the cylindrical shaft body 21 and passes through the upper side and the lower side.

[0016] On the other hand, when the cross-ring 3 of the rotation conversion mechanism 2 is rotated in the clockwise direction in the arm 4 ₂ communicates rod 7
9, the supporting plate 44 is moved upward on the guide rails 41, 41 via the sliding members 42, 43, and the guide rail 45 and the sliding member 4 are accordingly moved.
Bearing 4 of knitting needle mounting shaft 49 which is interlocked by engagement of 6, 47
8 is supported by the mounting plate 55 and the guide rods 56, 56 are raised. At the same time, the arm 4 ₄ of the cross arm 3 swings downward, so that the connecting rod 80 connected to this is connected.
To lower the support plate 59 above the support plate 44 on the guide rails 41, 41 through the sliding members 57, 58, and at this time, the guide rail 60 and the sliding member are interlocked to attach the knitting needle. While the bearing 61 of the shaft 62 is supported by the mounting plate 55 ', the guide rods 56, 56 are lowered. That is, the support plates 44 and 59 are brought close to each other. At the same time, by the rotation of the relay shaft 75, the movable body 70 is moved in the direction of the center post 23 on the guide rail 68 via the cylinder 72 by the adjusting plate 74 mounted coaxially on the guide rail 68 via the sliding members 69. . As a result, the guide rod 56 also moves accordingly, and the mounting plates 55, 55 'mounted on the guide rod 56 slide the bearings 48, 61 on the guide rails 45, 60 together with the servomotors 52, 65, respectively. It is moved toward the center post 23 via the moving members 46 and 47 (the sliding member of the bearing 61 is omitted). Therefore, since both the knitting needle attachment shafts 49, 62 perform the vertical approaching movement by the connecting rods 79, 80 and the movement of the moving base 70 in the direction of the center post by the rotation of the adjusting plate 74 at the same time, the upper and lower knitting needles 54, The tip of 66 is the lower coil b ₁ of the stator a
And diagonally move toward the upper coil b ₂ to move the knitting needle 5
4, 66 are inserted into predetermined positions of the upper and lower coils facing each other.

Here, for the sake of convenience, first, looking only at the lower thread, the binding thread pulled out from the yarn supplying nozzle 26 of the lower thread guide tube 19 is guided by the rotation of the adjusting plate 77 through the gears 35 and 22. By rotating the knitting needle 54 by a predetermined angle, it crosses the upper side or the lower side of the knitting needle 54 and entangles the binding yarn with the knitting needle 54.
That is, when the knitting needle 54 is inserted above the lower coil b ₁ , and when the binding yarn is rising from the lower side of the lower coil, the yarn feeding nozzle 26 is above the knitting needle 54 and the yarn feeding nozzle 26 is The binding yarn is entangled with the knitting needle 54 by rotating a certain angle. Further, when the knitting needle 54 enters the center post 23 through the lower side of the lower coil b ₁ , that is, the outer side, and when the binding yarn is pulled down from the upper side of the lower coil b ₁ , the yarn feeding nozzle 26 moves the knitting needle 54. As in the case described above, the adjusting yarn 77 is rotated at a lower position in a predetermined direction to rotate the adjusting plate 77 at a constant angle so that the binding yarn is entangled with the knitting needle. Similarly, the upper thread is entangled with the upper knitting needle 66 and the upper coil b ₂
The same is true when spelling. Thus knitting needles 54 and 6
6 are alternately on the upper side and the lower side of the coils b ₁ and b ₂ , respectively.
It enters and entangles the binding thread C. At this time, the upper and lower feeding
The yarn nozzles 28a and 26a move toward each other.
Or, it is moving in the separating direction. That is,
The cross arm 3 that drives the slides 28a and 26a is located on either side.
Even when the knitting needles 54 and 66 are rotated in these directions, the center post
It is configured to move in the direction of the gate 23a. Follow
The knitting needle 66 is inserted below the upper coil b ₂ .
When the binding yarn is downward from the upper portion, the yarn supplying nozzle 28 is lower than the knitting needle 66 and rotates a predetermined angle to entangle the upper yarn with the knitting needle 66, and the knitting needle 66 is placed above the upper coil b ₂ . That is, when the yarn is entering along the outer side and is moving upward from the lower part of the binding yarn, the yarn feeding nozzle 28
Are those entangle the needle thread to the knitting needles 66 by a predetermined angle rotation of the fed-thread nozzle 28 in a predetermined direction by the rotation of the adjusting plate 77 In the above the knitting needle 66. Then, by rotating the knitting needle mounting shafts 49, 62 by the optimum angle by rotating the servo motors 52, 65 at the next moment, the positions of the hook portions of the knitting needles 54, 6 are reversed and the loop of the binding yarn already formed. A new loop formed later from within L ₁ .
When pulling out L ₂ , the hooks of the knitting needles 54, 66 are prevented from hanging on the existing loop L ₁ and becoming unable to be pulled out, and then the reverse operation of the above operation, that is, the adjusting plate 74 is rotated cyclically to move the moving body 70. By moving the outer ends of the knitting needles 54 and 66 out of the upper and lower coils b ₁ and b ₂ by moving the coils outward (FIG. 1), the index shown in FIG. The motor 32 of the machine 25 is rotated to rotate the feed gear 29 with the pin-on gear 30 on the output side to feed the stator a by one pitch, and then the cross arm 3 of the rotation conversion mechanism 2 is rotated counterclockwise. The link 8 swings to rotate the arm 7 in the counterclockwise direction (FIG. 1), and lowers the lower thread guide tube 19 via the arm 9, the elevating and lower connecting rods 10 and 10 and the ring 18 to lower the yarn supplying nozzle 26. Move the position of 54 with the obtaining Bei when entering the lower side of the lower coil b _1, to oscillate the arm 11 in a clockwise direction by moving the link 12 the right (FIG. 1), the arms 13, the cylinder 14 and slide Board 15
The upper yarn guide tube 17 is moved upwards via the needle to shift the position of the yarn supplying nozzle 28 to the upper portion, and the upper knitting needle 66 is moved to the upper coil b.
Obtain prepare for the case that has entered the ₂ of the upper.

The arm 4 ₂ cross arm 3 at the same time and this lowers the knitting needle attachment shaft 49 which is supported by the guide rods 56, 56 and the support plate 44 lowers the support plate 44 through the communicating rod 79, The yarn feeding nozzle 26 that is already waiting for the knitting needle 54
Together correspond to the parts, the arm 4 ₄ 3GS pressing needle mounting shaft 62 which is held 3GS press the support plate 59 of the upper by the guide rods 56, 56 and the support plate 59 through a communication rod 80 needles 66 Is made to correspond to the position of the yarn feeding nozzle 28 which is already on standby. At the same time, by rotating the relay shaft 75, the arm 39, the rotary cylinder 36, and the gears 35, 22 are oscillated in the reverse direction via the adjusting plate 77, the link 78 as in the previous time, and the upper thread and the lower thread guide tube 17 is then moved. , 19 are both rotated in the same direction by a predetermined angle. At the same time, the adjusting plate 74 also rotates to the left (FIG. 1) in accordance with the rotation of the relay shaft 75, and the tips of the knitting needles 54 and 66 pass above and below the lower coils b ₁ and b ₂ , respectively. advance in the direction of 23. However, since this operation is performed simultaneously with the separating operation of the support plates 44 and 59, the knitting needles 54 and 66 move in an oblique direction, and the knitting needles 54 move toward the upper and lower outer sides of the lower coil b ₁ and the upper cor b _2. , 66 advance, and the knitting needles 54, 66 move to the center post 23 as described above.
Enters through the slit 23 '. At this time, the knitting needles 54, 66 are already held in the loop of the binding yarn formed immediately before as shown in FIG. Needle thread and bobbin thread C in standby state due to
Correspond to the tip hooks 54 ′ of the knitting needles 54 and 66, while rotating the adjusting plate 77 to entangle the binding yarn with the knitting needles, the servomotors 52 and 65 for rotating the knitting needles are operated to move the knitting needles 54 and 66 respectively. As shown in FIG. 14, a new loop easily and surely passes through the loops of the knitting needles 54 and 66 which have been rotated by a required angle and are already held by the knitting needle tips without hooking the existing loops. As shown in the schematic diagram, a new loop is formed when it passes through the immediately preceding existing loop, and the stator is knitted by repeating this operation.

Next, when the knitting operation is completed, the end cutting of the knitting yarn is performed as shown in FIGS. That is, first, in order to cut the lower yarn, when the yarn is drawn from the yarn supplying nozzle 26a of the lower yarn guiding tube 19 through the existing loop by the knitting needle 54, the yarn supplying nozzle 26a is bound at the portion extending over the lower outer circumference of the lower coil. The hook portion 92 of the thread shifting metal fitting 91
, The cylinder 87 is retracted, the binding yarn C is drawn to the position of the heat cutter 89, and the binding yarn C is melted by contact with the cutter. Next, in order to cut the upper thread, the upper thread guide tube 17a is moved up in the cylinder 14 and the upper thread restraining member 100 is pushed upward by the upper end of the cylinder 14 to lift the upper thread restraining body 100.
When the yarn feeding nozzle 28a reaches the rising end of the upper yarn pulled out from the 8a, the rotary cylinder 36 is operated to move the cylindrical shaft body.
The upper thread guide tube 17a is rotated via 21 so that the upper thread guide tube 17a is circulated above the support projection 98 provided in the center post 23a.
When the needle thread C is lowered by the operation of 4, the center thread 23a
Is slanted outward through the slits 23a 'of, and the restraining body 100 restrains the upper thread C hooked on the supporting protrusion 98 by its own weight and the pulling-down operation by the wire 99,
In this state, the cylinder 96 operates and the heat cutter 96 at the front end makes forward contact in the direction of the upper thread C and melts and cuts.

[0020]

As described above, according to the present invention, the number of rotations of the rotation converting mechanism for driving the cross arm, which is the most basic operation, is binary-coded by the encoder, so that it is compared with the program preset by the microcomputer. However, since the operation timing of each part is calculated and the operation is advanced, the number of mechanical parts is small and the control part and the adjusting part can be electrically configured to be downsized, and the adjustment work accompanying the change of the stator coil etc. Remarkably easy, and freely changeable.
Further, the use of mechanical elements such as gears, links or cams can be greatly reduced, and noise can be reduced.

At the end of the work, the binding thread cutting operation can be automatically performed for each of the upper thread and the lower thread, so that the working efficiency is remarkably improved, the construction is simple, and the number of parts is small and it can be provided inexpensively. The effect peculiar to the invention is achieved.

[Brief description of the drawings]

FIG. 1 is a schematic front view of an apparatus of the present invention.

FIG. 2 is a right side view of FIG.

FIG. 3 is a plan view taken along the line AB of FIG.

FIG. 4 is a partial front view of FIG. 3;

FIG. 5 is a left side view of FIG.

FIG. 6 is a partial front view of FIG.

FIG. 7 is a plan view of FIG. 6;

FIG. 8 is a side view of CD of FIG.

FIG. 9 is a side view of D-E of FIG. 1.

FIG. 10 is a cutaway enlarged vertical side view of the lower thread cutting mechanism portion.

FIG. 11 is a schematic side view of an upper thread and lower thread cutting operation.

FIG. 12 is a schematic side view of an upper thread and lower thread cutting operation.

FIG. 13 is a partially cutaway perspective view of the stator showing a knitting state.

FIG. 14 is an explanatory view schematically showing the state of knitting.

[Explanation of symbols]

2 rotation conversion mechanism 17 upper thread guide tube 19 lower thread guide tube 23 center post 25 indexer 52 servo motor 54 knitting needle 65 servo motor 66 knitting needle 70 moving body 84 encoder 89,97 heat cutter a stator b ₁ lower coil b ₂ upper coil

Claims (3)

(57) [Claims] 1. A means for moving an upper thread guide tube and a lower thread guide tube up and down within a center post that holds a stator, and means for rotating the upper thread guide tube and the lower thread guide tube within the center post. A means for advancing and retracting the upper and lower knitting needles toward the upper coil and the lower coil of the stator on the center post, a means for rotating the two knitting needles at a constant angle, and a stator on the center post being fixed. Drive provided with indexing means for advancing to an angle, means for controlling the operation of each means, and a cross arm
The means for moving the guide tube up and down are connected to the lower ends of the upper thread guide tube and the lower thread guide tube, respectively, and rotate in opposite directions about the axis by the swing of the cross arm. It consists of a pair of arms to be moved and a cylinder provided between one of the arms and the needle thread guide tube. The means for rotating the guide tube is composed of an upper thread guide tube and a lower thread guide tube. A cylindrical shaft body that is slidably and non-rotatably engaged, and a rotary cylinder that rotationally drives the cylindrical shaft body via a gear,
The means for moving the knitting needle forward and backward is connected to the same driving source as the cross arm and that rotates the rotating cylinder itself. The means for advancing and retracting the knitting needle is a movement provided with a guide rod for connecting both knitting needles. The knitting needle is composed of a cylinder that drives the table in a direction to move toward and away from the center post, and an adjusting plate that is connected to the moving table through the cylinder and is driven by the same drive source as the cross arm. The means for rotating the fixed angle is provided in the vicinity of the upper and lower knitting needles that are rotatably held, and is composed of a pair of servomotors whose output shafts are connected to the respective knitting needle mounting shafts. , A means for controlling the operation of each of the above means, which comprises a feed gear that holds the stator in the center and is rotatably held by a support plate, and an indexer that engages with the feed gear. Is an encoder that detects the number of rotations of the rotation conversion mechanism that drives the cross arm, and the cylinder based on a signal from the encoder.
Doll, rotary cylinder, servo motor and indexer
Ri Do and a microcomputer for sending an operation command signal for moving, when the basic operation is performed by mechanical linkage drive means co
, Above cylinder, rotary cylinder, servo motor
And the indexer operates based on the electrical signal from the control means.
A stator coil knitting machine characterized by being adapted to move . 2. A thread pulling metal fitting is provided between the lower thread guiding tube and the lower coil of the stator so as to be retractable, and a heat cutter is provided on the proximal end side of the thread pulling metal fitting to sew the lower coil. The stator coil knitting machine according to claim 1, wherein the knitting yarn is pulled out to a portion of the heat cutter and cut. 3. A support projection is provided inwardly in the center post, and an upper thread restraining member driven by an upper thread guide tube is loosely fitted on the support projection, and an upper coil of the stator is provided with: A heat cutter capable of advancing and retracting in the direction of the center post is provided, and the knitting yarn that knits the upper coil of the stator is
The stator coil knitting machine according to claim 1, wherein the stator coil knitting machine is sandwiched between an upper thread restraining body and a support projection, and cut by the advance of the heat cutter.