JPS6035446B2 - Belt type false twisting device twisting and belt crossing angle conversion device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION A so-called belt-type false twisting device is known in which yarn is nipped between two belts that intersect at a yarn nip point and run in opposite directions to cause temporary combustion.

In such a device, changing between S twist and Z twist can be easily done by switching the drive direction of the two belts between forward and reverse, but the timing belt that transmits the driving force to the belt has a directionality. It is undesirable to switch the driving direction between forward and reverse directions. In the present invention, two belts are rotated across the yarn path centering on a belt intersection, thereby changing the traveling direction of the two belts with respect to the yarn path without changing the driving direction of the belt. The twist and Z twist are exchanged and the belt crossing angle is converted.

Embodiments of the present invention will be described in detail below with reference to the drawings.

In FIG. 1, the yarn Y pulled out from the yarn feeding creel 1 passes through the guide pipe 2, first feed roller 3, first heater 4, cooling device 5, belt type false twisting device 6, second feed roller 7, 2nd day 8, it passes through the third feed roller 9 and is wound up by the mahjong catching device 10. The two belts 11 and 12 constituting the false twisting device are mounted on a frame 13 supported by a machine frame 15.
, 14.

The false twisting device will be explained in detail below.

In FIGS. 2 and 4, the frames 13 and 14 extend in the longitudinal direction of the machine, and the support tubes 16 of the belts 11 and 12 are connected to the frames 13 and 14, respectively.
17 are installed at equal pitches.

In FIG. 2, four sets of false twisting devices are shown. 18,19
1 is a drive unit housing fixed to a machine frame 15; shafts 20 and 21 are supported on the housings 18 and 19 via bearings;
, 14 are supported by support portions 13a, 14a formed at both ends of the frames 13, 14, so that the frames 13, 14 can rotate in the same direction as the shafts 20, 21.

Gears 22, 23 are provided in the cylindrical portions 18a, 19a of the housing.
are rotatably joined together, and the gears 22 and 23 are connected to the worm 2.
4 and 25, and also engages with the supporting parts 13a and 14a by the play pins 26 and 27, and the handles 95 and 9
By rotating the worms 22 and 23 using the worms 6, the frames 13 and 14 are rotated. 101,10
Numeral 2 denotes a snap ring which is iron-plated on the cylindrical portions 18a, 19a to prevent the gears 22, 23 from coming off from the cylindrical portions 18a, 19a, and 103, 104 denote snap rings between the cylindrical portions 18a, 19a of the gears 22, 23. The metal bushes 105 and 106 are also iron-plated metal bushes to reduce the friction between the frames 13 and 14 and the cylindrical parts 18a and 19a.

28, 29 are groove pulleys fixed to the shaft 20, 30, 31
is a groove pulley fixed to the shaft 21, 32 and 33 are groove pulleys fixed to the line shaft 34, and the line shaft 3
4 through the timing belts 35 and 36 to the shaft 20,
Rotation of grooved pulleys 39, 40' supported on frames 13, 14 is transmitted from shafts 20, 21 to shafts 20, 21 via timing belts 37, 38.

A drive pulley 43 is fixed coaxially with the groove pulley 40, and as shown in FIG. 3, the drive pulley 43 rotates the pulleys 41 of each support tube 16 via a running belt 42 to cause the belt 11 to run. Similarly, the pulleys 46 of each support tube 17 are rotated via a drive pulley 44 coaxial with the groove pulley 39 and a running belt 45 to cause the belt 12 to run.

Reference numerals 47 and 48 indicate direction changing pulleys for the timing belts 38 and 37.

As shown in FIG. 4, the intersection point where the threads Y of the belts 11 and 12 are nipped is located on the center line of the shaft 21, and the shafts 20 and 21 are also arranged concentrically, so that the frames 13 and 14 cannot be rotated. This allows the belts 11 and 12 to turn around the belt intersection.

By the rotation of the belts 11 and 12, the belts 11 and 12
By changing the intersection angle, the set number of twists can be changed, and conversion between S twist and Z twist can be performed.

FIG. 5 shows the pattern of twist conversion. In Fig. 5a, when the belts 11 and 12 intersect at an angle of 0, one belt 12 is turned at an angle of 8 and the other belt 11 is turned at an angle of 3600-8 in the same direction (arrow direction) across the yarn path Y. Then, as shown in FIG. 5b, the belt 12 is placed in the position where the belt 11 was, and the belt 11 is placed in the position where the belt 12 was. The running direction of the belt at the belt intersection, that is, the nip point of the yarn Y, is from right to left for the belt 11 and from left to right for the belt 12 with respect to the yarn path Y in FIG. 5a. By performing the conversion, the belt 11 runs from left to right with respect to the yarn path Y, and the belt 12 runs from right to left with respect to the yarn path Y. Can be converted to twist or Z-type. In addition, in the above embodiment, since the frames 13 and 14 are present, the belt 1
2, the belt 11 is rotated in the same direction by an angle of 360 o-a, but in some cases, the belts 11 and 12 may also be rotated in the opposite direction by an angle (8) around the yarn path Y. It is also possible to change the belt state.

Details of the belt support portion are shown in FIGS. 6 to 9.

In FIGS. 6 and 7, the support tube 17 is supported by a housing 49 fixed on the frame 14 via bearings 50 and 51, and the rut 5 is supported by the support tube 17 via bearings 52 and 53.
4 is supported, a pulley 46 is fixed to the lower end of the shaft 54, and a drive pulley 55 for the belt 12 is fixed to the upper end of the ratchet 54. A screw 56 passes through the arm 17a of the support tube 17, and a bearing 60 is attached to a rattan 59 that stands on a sliding piece 58 that is loosely woven into a long hole 57 (see FIG. 9) of the arm 17a and is screwed into the screw 56. A driven pulley 61 of the belt 12 is supported through the screw 56, and the tension of the belt 12 is adjusted by rotating the screw 56 and moving the driven pulley 61 in the left-right direction in FIG. Adjustment combs 62 and 63 are fixed to both ends of the screw 58, and the frame 14
It can be adjusted from both the left and right sides.

64 is a belt cover fixed to the arm 17a with bolts 65.

A housing 66 fixed on the frame 14 supports a screw 68 that engages a branch 67, and a pin 69 protruding from the screw 68.
A spring 71 is applied between the support tube 17 and a pin 70 protruding from the support tube 17.
rotate around the shaft 54 and force the belt 12 to rotate around the other belt 1.
1 as shown in Figure 9a. The pin 72 protruding from the branch piece 67 is iron-fitted with the long groove 73 of the housing 66, and the screw 68
By rotating the support piece 67 and moving it in the left-right direction in FIG. 7 to change the biasing force of the spring 71, the belts 11,1
The pressing force of 2 is adjusted. Adjustment knobs 74 and 75 are fixed to both left and right ends of the screw 68 so that adjustments can be made from both the left and right sides of the frame 14.

76 is a lock piece fixed to the arm 17b of the support tube 17; 77
is a lock pin which is supported by a support body 78 fixed to the housing 49, which is biased to protrude from above and below by a spring. swivel to lock piece 7
6 is pushed between the lock pins 77 to lock the belt 12 away from the belt 11 as shown in FIG. 9b.

In FIG. 8, a support tube 16 supporting the other belt 11
is fixed on the frame 13. Support tube 161 bearing 7
A drive pulley 81 is supported by shafts 9 and 80, and a driving pulley 82 for the belt 11 is fixed to the upper end of the shaft 81, and a pulley 83 is fixed to the lower end of the shaft 81. A screw 84 is inserted into the arm 16a of the support tube 16.
is passed through and screwed into the screw 84, and a bearing 8 is attached to the upright shaft 87 on the sliding piece 86 which is played on the long shaft 85 of the arm 16a.
Similarly to the case of the belt 12, the driven pulley 89 is supported via the belt 8. Numerals 90 and 91 are adjustment knobs fixed to both ends of the screw 84, and 92 is a belt cover fixed to the arm 16a.

As can be seen from FIG. 9b, if the belts 11 and 12 are simply separated, when the belts 11 and 12 are rotated as shown in FIG. 5 to change the twisting direction, the moving pulley 89 of the fixed belt 11 will swing. The drive pulleys 55 of the side belts 12 interfere with each other.

In order to prevent this interference, the method described below is taken. In FIG. 2, a gap 93 is provided between the support part 13a and the gear 22, and during normal false twisting, the bolt 94 screwed into the support part 13a is screwed into the support part 13a through the arc-shaped notch formed in the support part 14a. The frames 13 and 14 are fixed by pressing against the end face and sandwiching the frames 13 and 14 between the gears 23 and 22, but when changing the belt intersection angle, loosen the screw 94 and rotate the frames 13 and 14. In the case of twist conversion, the screw 94 is further loosened and only the frame 13 is moved to the right by the distance of the gap 93 until the support portion 13a comes into contact with the end face of the gear 22.

As a result, the support tube 16 moves in a direction away from the support tube 17, thereby preventing interference of the pulleys. In addition,
In addition to the above method, it is also possible to use a method such as making the support tubes 16 and 17 of both belts swingable.

As described above, according to the apparatus of the present invention, the S twist and the Z twist can be exchanged without changing the belt driving direction.

Furthermore, when the driving direction of the false twisting belts 11 and 12 is switched between the forward and reverse directions, the tension side and the slack side of the belt change, and when the twist is changed, the nip pressure of the yarn changes and the set number of twists changes. However, with the device of the present invention, there is no such fear at all.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the overall configuration of the belt-type false-twisting equipment, and FIG. 2 is a cross-sectional front view showing the overall configuration of the belt-type false-twisting device, and FIG. 4 is a cross-sectional view taken along line A-A. Fig. 3 is a bottom view of the frame, Fig. 4 is a sectional view taken along line B-B in Fig. 2, Fig. 5 is an explanatory diagram showing the pattern of twist conversion, and Fig. 6 is a sectional view of one belt support part, and Fig. 9a is a sectional view of the frame. A cross section taken along line D-D is shown. 7th
The figures show a sectional view taken along the line CC in FIG. 6, FIG. 8 a sectional view of another belt support section, and FIGS. 9a and 9b a plan view of both belt support sections. 11, 12... False twist belt, 13, 14... Frame, 13a, 14a... Support part, 15... Machine frame, 18
, 19... Housing, 18a, 19a... Cylindrical part, 2
0, 21...shaft, 28, 29, 30, 31... pulley,
37, 38... timing belt, 42, 45...
Running belt, Y...thread path. Figure 1 Figure 3 Figure 5a Figure 5b Figure 2 Figure 9a Figure 9b Figure 4 Figure 6 Figure T Figure 8

Claims (1)

[Claims] 1 Cross two belts running in opposite directions,
In a belt-type false twisting device that nip and false twist the yarn at the intersection, the centers of the two opposing axes are on the same straight line, and each axis is inserted into the horizontal cylindrical part of the housing fixed to the machine frame. A gear is supported concentrically with the cylindrical part via a bearing, and two end support parts of two frames are pivotally connected to the outer periphery of the cylindrical part, and the support parts are rotatably fitted to the outer periphery of each of the cylindrical parts. The frame is connected to the end face by a pin and is rotatable around the outer periphery of the cylindrical part, and each frame is driven by a running belt driven by a timing belt via a direction changing pulley from a pulley fixed to the shaft end in the cylindrical part. a driving pulley for driving the false-twisting belt, a running belt for driving the false-twisted belt that is passed around the drive pulley and runs in the longitudinal direction of the frame, and a drive belt for driving the false-twisted belt that is attached to the upper end of a shaft with a pulley fixed to the lower end that presses against the surface of the running belt. An intersection having a fixed pulley and a false-twisted belt stretched between the driving pulley and the driven pulley, and caused by the intersection of the false-twisted belt on one frame and the false-twisted belt on the other frame. are located on the center line of two opposing shafts in the cylindrical part, and the gear is engaged with a worm rotated by a handle. Angle conversion device.