JPH08232124A - Traversing apparatus - Google Patents

Abstract

PURPOSE: To enable the shortening of processing time and the reduction of manufacturing cost. CONSTITUTION: A traversing apparatus 21, converting a rotational motion into a reciprocal motion, is composed of a traverse cam 23 produced by press molding attached to a rotary shaft 22 and a traverse lever 23 engaged with the traverse cam 23 to properly swing. The traverse cam 23 comprises a board where a plane 28 engaging with the traverse lever 24 is formed on the periphery of the board and the outside of the plane 28 is bent. In the traverse cam 23, ribs 31 extending in radial directions are formed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a traverse device provided in a textile machine such as a double twister.

[0002]

2. Description of the Related Art As shown in FIG. 17, a double twister 1
Is configured by arranging a large number of weights 4 provided with the yarn twisting portion 2 and the winding device 3 side by side. An end box 11 accommodating a motor (power source) 5 is provided at one end of the weight row, and the spindle 12 of the yarn twisting portion 2 is moved by frictional contact of an endless belt 6 that is circulated and driven by the rotation of the motor 5. It is designed to rotate at a high speed all at once. Further, the circulating motion of the endless belt 6 is changed into appropriate rotation by the speed reducer 7 and the gear train 8 provided in the case 13 at the other machine base end, and the rotary drum 9 and the traverse member 10 of the winding device 3 are driven. It is designed to let you. In the gear train 8, the winding speed can be changed by appropriately replacing the intermediate gear to change the number of twists of the yarn Y wound in the package P.

[0003]

A traverse device 14 for reciprocating the traverse member 10 is provided in the case 13. The traverse device 14 includes a traverse lever 16 connected to a traverse bar 15 of a traverse member 10 and a cam 17 that operates by rotation of a gear train 8, and the traverse lever 16 engages with an engagement surface of the cam 17. Thus, the rotary motion is converted into a reciprocating motion (oscillation) within a predetermined range. However, since the conventional cam 17 is molded as a heavy casting, there is a problem that it takes a long processing time and the manufacturing cost becomes high.

Therefore, the present invention was devised to provide a traverse device which can reduce the processing time and the manufacturing cost.

[0005]

According to the present invention, in a traverse device for converting a rotary motion into a reciprocating motion, a press-formed cam member attached to a rotary shaft and a cam member engaged with and swung appropriately. And a lever member. It is preferable that the cam member is formed of a plate having an engaging surface for engaging with the lever member formed on the outer peripheral portion, and the outer side thereof being bent. Further, it is preferable that the rib has a rib extending in the radial direction.

[0006]

With the above structure, the lever member engages with the engaging surface of the cam member that rotates integrally with the rotating shaft, thereby converting the rotational movement into a reciprocating movement for traverse. The folded structure and ribs give the press-formed plate adequate strength.

[0007]

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

FIG. 1 shows an example of a traverse device according to the present invention when it is applied to a double twister. The traverse device 21 has a rotary shaft 22.
The traverse cam 23, which is a cam member made of a press-molded plate attached to the, and a traverse lever 24, which is a lever member that engages with the traverse cam 23 and swings. The rotary shaft 22 is provided inside a case 25 installed at the end of the weight train,
It is designed to be rotated by 6. In this embodiment, the weights are vertically arranged in two stages and arranged in two rows (back-to-back), and the power transmission mechanism 26 applies the rotational driving force from a spindle drive motor (not shown) to each of them. In order to appropriately transmit the weight to the winding device, they are housed in the same configuration above and below a substantially rectangular parallelepiped case 25.

As shown in FIG. 2, the traverse cam 23
Is formed by bending the outermost edge portion 27 of a circular plate in the axial direction, and has an engaging surface 28 that engages with the traverse lever 24 inside (outer peripheral portion) thereof. Between the engagement surface 28 and the shaft center portion 29, eight ribs 31 which are slightly projected from the surface portion 30 and radially extend in the radial direction are press-molded. Further, the traverse cam 23 is slightly bent at the position of the line segment in the radial direction, and as shown in FIG. 3, the engaging surface 28 has a ridge portion 32 and a valley portion 33 of 180 degrees each. Are formed in the phase. The refraction points of these portions 32 and 33 have a slightly rounded shape so that the locus 34 of the cam follower center is smoothly connected. Further, the surface portion 30 of the traverse cam 23 has the rotating shaft 22.
It is attached in a state of being appropriately inclined with respect to the axial direction, and the engaging surface 28 is held so as to be orthogonal to the axial direction of the rotating shaft 22 over the entire circumference. The engagement surface 28 is formed so as to have a predetermined cam profile by the inclination angle of this attachment, the refraction angle α, and the axial distance H between the crests 32 and 33.

As shown in FIG. 1, the traverse lever 2
4 are provided on the left and right with the traverse cam 23 interposed therebetween, and the base ends thereof are pivotally supported near both ends of a rod 35 that is laterally suspended in the case 25. Then, a traverse bar 37 is connected to the tip end portion serving as the swing end via a connecting member 36. A roller 38, which is a cam follower, and a spring 39, which urges the roller 38 so as to always contact the engagement surface 28 of the traverse cam 23, are attached to a position approximately in the middle of the traverse lever 24. Connecting member 36
Is an elongated hole 4 formed at the tip of the traverse lever 24.
The small rod 41 has one end loosely fitted in 0, and the connecting plate 42 that connects the other end of the small rod 41 and the traverse bar 37. A screw 43 is engraved on the other end of the small rod 41, and a pair of nuts 44 screwed into the screw 43 are provided on both sides of the connecting plate 42. That is, by rotating the nut 44, the relationship between the swing angle of the traverse bar 24 and the reciprocating position of the traverse bar 37 can be adjusted.

Next, the case 25 in which the traverse device 21 is installed will be described with reference to FIGS. 9 to 16. The case 25 includes a lower plate 45 serving as a bottom surface thereof, a side plate 46 defining a side surface on the weight side S, a box plate 47 defining a side surface on the opposite side, an upper plate 48 defining a ceiling surface, and an upper plate. The intermediate plate 49 is provided mainly between the lower plate 48 and the lower plate 45. That is, the power transmission mechanism 26 for the upper weight is accommodated above the middle plate 49, and the power transmission mechanism 26 for the lower weight is accommodated below the middle plate 49. Lower plate 45
The left and right sides (the front side of each weight) of the middle plate 49 are bent upward at a right angle, and the assembly holes 52 for joining the side plate 46 and the box plate 47 are provided at both ends of the bent portions 50 and 51. , 53 are perforated respectively. Further, as shown in FIG. 14, the traverse lever 2 is provided at the bent portions 51 and 50.
A hole 59 for attaching the No. 4 rod 35 is formed. The upper plate 48 is bent downward, and the bent portion 54 has a similar assembly hole 55. The left and right sides and the upper and lower sides of the side plate 46 are bent inward, and the left and right bent portions 56 are overlapped with the end portions of the bent portions 54, 51, 50 of the upper plate 48, the middle plate 49 and the lower plate 45. The upper and lower bent portions 57 are overlapped with the ends of the surface portions of the upper plate 48 and the lower plate 45, respectively. And this bent part 5
6 is an assembly hole 5 that is aligned with the assembly holes 55, 53, 52 of the upper plate 48, the middle plate 49, and the lower plate 45 in a superposed state.
8 are formed. The box plate 47 is formed so that the left and right sides and the upper and lower sides are bent deeper than the side plate 46, and the side opposite to the weight side S is open. The middle plate 49 is formed to have a size shorter than the upper plate 48 and the lower plate 45 so as to be fitted to the surface portion of the box plate 47, and the front and rear sides thereof are bent downward. The bent portion 60 of the box plate 47 is also formed with mounting holes 61 corresponding to the mounting holes 55, 52, 53 of the upper plate 48, the lower plate 45 and the middle plate 49. In addition, inside the bent portion 60 of the box plate 47,
A partition plate 62 that also serves as an oil pan is provided. Partition plate 6
The four edges of 2 are the surface portion of the box plate 47 and the bent portion 60.
It is bent to make a face-to-face joint. Besides this, the lower plate 45
At the four corners of the column, a pedestal 63 composed of a bolt rod and a prismatic skirt member 64 extending in the weight direction on the outside thereof are attached.

To assemble these plates, a monobolt (blind rivet) 65 as shown in FIG. 11 is used. The monobolt 65 includes a rivet 67 having a shaft portion 66 corresponding to the diameter of the assembly hole, and a pin 68 inserted into the shaft hole formed in the rivet 67. Then, the rivet 67 is inserted into, for example, the assembling holes 52 and 61 of the lower plate 45 and the box plate 47 (b), and the pin 68 is pulled out in this state, so that the enlarged diameter portion 69 at the tip of the pin 68 causes the shaft of the rivet 67 to move. The portion 66 is bulged in the radial direction (c), and the plates are fastened together by crimping. After the conclusion,
The base end side of the pin 68 is bent and removed from the rivet 67. Further, as shown in FIG. 15, on the outside of the case 25 (three-sided surfaces excluding the weight side S), openable / closable exterior plates 70, 71, 72 are provided.
Is provided. In order to support the exterior plates 71 ... 72, the brackets 7 are provided at the upper and lower positions on both sides of the box plate 47.
3, 74 and vertical pins 75, 76 are provided (FIG. 1).
3 and FIG. 14). That is, these vertical pins 75, 76
Further, by fitting holes formed at the ends of the exterior plates 70, 71, 72, it is possible to open and close like a door on the hem member 64. Also, on one side of the box plate 47,
Magnet 7 that is attracted when the facing exterior plate 70 is closed
7 are provided.

Next, the power transmission mechanism 26 will be described with reference to FIGS. The power transmission mechanism 26 includes a worm speed reducer 83 having an input pulley 81 and an output pulley 82.
And a belt transmission means 84 connected to the output pulley 82 of the worm speed reducer 83. The belt transmission means 84 appropriately transmits the driving force to the traverse device 21 and the winding drum of each weight. It is configured.

The body of the worm reducer 83 is attached to the surface of the box plate 47, and the input side pulley 81 attached to the input shaft 85 protruding to the lower part of the body is located above the middle plate 49 or the lower plate 45. The output side pulleys 82 that are respectively positioned and attached to the horizontal output shafts 86 are
It is located inside the box plate 47. A pair of guide pulleys (not shown) for guiding the endless belt 87 from the spindle drive motor is provided on both sides of the input side pulley 81 and at positions appropriately separated from the weight side S. The input side pulley 8 is provided on the box plate 47 and the side plate 46.
Rectangular notches 88 and 89 are formed to avoid interference with the endless belt 1 and the endless belt 87.

The belt transmission means 84 is a worm speed reducer 8.
No. 3 output side pulley 82, a continuously variable transmission pulley (variable pitch pulley) 90 and a belt 91 connected thereabove.
A first relay pulley 92 and a belt 93 which are connected to the continuously variable transmission pulley 90 thereabove, and a first relay pulley 92.
A pair of take-up drum pulleys 94 and 95 and a belt 96 which are connected to each other at the left and right positions thereof, and a right take-up drum pulley 9
5 is provided with a second relay pulley 97 and a belt 98 which are connected below the third relay pulley 97, and a third relay pulley 99 and a belt 100 which are connected to the second relay pulley 97 obliquely below the second relay pulley 97. These are provided in the space surrounded by the box plate 47. Further, as the belt transmission means 84, the traverse cam drive shaft 101, which is the pulley shaft of the third relay pulley 99, the fourth relay pulley 102 attached to the other end side, and the fourth relay pulley 102 are connected. The cam pulley 10 mounted on the rotating shaft 22 of the traverse device 21
3 and a belt 104 are provided. These are provided between the box plate 47 and the side plate 46.

The continuously variable pulley 90 has a pulley shaft 105.
A pair of fixed pulley plates 106, 107 mounted at a predetermined interval in the axial direction of the movable pulley plate 10 and a movable pulley plate 10 movably provided between the fixed pulley plates 106, 107 in the axial direction.
8 and the movable pulley plate 108 and the fixed pulley plates 106, 10
Belts 93 and 91 are respectively wound between and. The base end of the pulley shaft 105 is supported by a moving block 110 locked by a guide 109 in a substantially vertical direction via a bearing 111. A female screw portion 112 is formed on the moving block 110, and is screwed to a screw rod 116 connected to an output shaft 114 of the transmission motor 113 via a coupling 115. That is, the rotation of the transmission motor 113 causes the moving block 110 to move in a substantially vertical direction along the guide 109, changing the position of the pulley shaft 105 between the output pulley 82 and the first relay pulley 92. ing. By this position control, the tension of the belts 93 and 91 wound between them is changed to substantially increase or decrease the pulley diameter formed between the movable pulley plate 108 and the fixed pulley plates 106 and 107. Then, the rotation ratio is adjusted. In this embodiment, by raising the pulley shaft 105, the diameter of the pulley connected to the output pulley 82 is reduced to increase the rotational speed of transmission, and by lowering the pulley shaft 105, the rotational speed is decreased. It is designed to let you. In addition, the guide 109, the screw rod 116, and the transmission motor
The housing 117 supporting 113 is attached to the surface of the box plate 47 by a bracket 118 surrounding the housing 117 in a U shape. A rectangular opening 78 is formed in the box plate 47 at this position so as not to prevent the moving block 110 and the pulley shaft 105 from moving.
A sensor 119 for detecting the position of the moving block 110 is provided in the housing 117.

The first relay pulley 92 comprises a large diameter pulley 92a and a small diameter pulley 92b which are coaxial with each other.
The variable pulley a is opposed to the continuously variable transmission pulley 90, and the small diameter pulley 92b is opposed to the take-up drum pulleys 94 and 95. The belt 96 wound around the take-up drum pulleys 94 and 95 from the first relay pulley 92 is the right take-up drum pulley 9.
It is also wrapped around the tension roller 120 adjacent to 4,
The take-up drum pulleys 94 and 95 are adapted to rotate in opposite directions. Take-up drum pulleys 94, 9
The pulley shaft of No. 5 extends toward the weight side S as drum drive shafts 121 and 122, and is supported by the box plate 47 and the side plate 46 via bearings 123 on both sides. A fifth relay pulley 124 is attached to the drum drive shafts 121, 122 in the vicinity of the side plate 46, and is attached to a shaft 125 of a feed roller (not shown) provided on each weight via the pulley 126 and a belt 127. It is connected. A tension roller 129 is engaged in the middle of the belt 127. The end 125 of the feed roller shaft 125 penetrates the side plate 46 and is supported by a bearing 128, and a pulley 126 is attached to the extending end of the shaft 125.

A pulley 130 having a diameter smaller than that of the right winding drum pulley 95 is coaxially provided. The second relay pulley 97 is composed of a large diameter pulley 97a and a small diameter pulley 97b, and a belt 98 is wound between the small diameter pulley 97a and the small diameter pulley 130 of the left winding drum pulley 95. The above belt transmission means 84 is preferably composed of a toothed belt and a toothed belt wheel. In the illustrated example, two belts (96, 98) are used.
And six pulleys (92b, 94, 95, 97b, 120
, 130) with teeth. The large-diameter pulley 97a of the second relay pulley 97 and the third relay pulley 99
The tension roller 143 attached to the box plate 47 is engaged with the belt 100 wound between the box plate 47 and the belt 100.

The traverse cam drive shaft 101 of the third relay pulley 99 extends through the box plate 47 to the side plate 46, and is supported by both ends thereof via bearings 123. The fourth relay pulley 102 is attached to the traverse cam drive shaft 101 at a position appropriately separated from the side plate 46 and faces the cam pulley 103. The fourth relay pulley 102 and the cam pulley 103 each consist of two pulleys (102a, 102b, 103a, 103b) arranged side by side, and the fourth relay pulley 102 has a slightly different pulley diameter. Has been done. The small-diameter pulley 102b is located on the side close to the side plate 46, and one of the cam pulleys 103 facing this side is opposed to the side plate 46.
b is fixed to the rotary shaft 22 via a boss 131.
The rotating shaft 22 has one end on the side plate 46 and the other end on the continuously variable transmission pulley 90 so as to be parallel to the traverse cam drive shaft 101.
The brackets 118 are respectively supported by bearings 123. As shown in FIGS. 1 and 2, the traverse cam 23 is attached by welding to the sliding body 133 fitted to the rotary shaft 22 through the key groove 132 in the axial direction. That is, the rotation shaft 22 is rotated at a predetermined rotation ratio with respect to the winding rotation speed by the rotation driving force that has passed through the drum drive shafts 121 and 122. By this rotation, the traverse cam 23 swings the traverse lever 24 at an appropriate cycle. A tension roller 134 attached to the side plate 46 is engaged with the belt 104 of the cam pulley 103 (see FIG. 1).

Further, the traverse device 21 of the present embodiment is provided with a creeping mechanism 135 for preventing the height of the winding package from becoming high. This creeping mechanism 135
Is the other cam pulley 103a facing the large-diameter pulley 102a of the fourth relay pulley 102, and a creeping cam 136 for sheet metal processing attached to the end of the sliding body 133 by welding.
The creeping cam 136 includes a roller 137 that engages with the profile surface of the creeping cam 136, and a bracket 138 for attaching the roller 137 to the other cam pulley 103a. The profile surface of the creeping cam 136 is formed so as to be slightly reciprocally displaced in the axial direction by one rotation. Therefore, as the rotation is transmitted, the phase of the other cam pulley 103a deviates from the phase of the one cam pulley 103b (rotating shaft 22) due to the difference in pulley diameter between the fourth relay pulleys 102a and 102b. Due to this phase shift, the roller 137
Moves relative to the creeping cam 136,
133 and the traverse cam 23 are periodically moved in the axial direction little by little. That is, the traverse width is set to be the same and the winding position is moved to the left and right to reduce the density of both ends of the winding package.

As shown in FIGS. 12 and 16, the side plate 46 and the box plate 47 have bearing holes 139 and 140 for mounting the bearings 123 and 128, and the traverse bar 3.
7, through holes 141, 142, tension pulleys 120, and elongated holes 144, 145 for attaching the tension rollers 129, 134, 143 are formed. Also sensor 11
Since it is desirable that the cables connecting the 9 and the variable speed motor 113 and the like to the control panel (not shown) are arranged along the surface of the side plate 46 or the box plate 47, a string locking hole 146 for passing a string for bundling them. Are formed. In addition, the side plate 46,
A fixing hole 147 for fixing one end of the spring 39 for pulling the traverse lever 24 is formed, and the box plate 4
7 has a mounting hole 14 for mounting the worm reducer 83
8 are formed.

As described above, the traverse cam 23 formed by press molding is attached to the rotary shaft 22 which is rotationally driven by the power transmission mechanism 26, and the traverse bar 37 is reciprocated by the traverse lever 24 which engages with and swings. Since it is made to move, the processing time and the manufacturing cost can be reduced as compared with the configuration using the cam of the conventional heavy casting. Further, the engaging surface 28 of the traverse cam 23
By bending the outer side of the plate and pressing the rib 31 on the surface portion 30, sufficient strength for swinging the traverse lever 24 can be obtained. Further, in this embodiment, since the creeping cam 136 provided along with the traverse cam 23 is made of a press-molded plate, further weight reduction and cost reduction can be achieved.

Further, in this embodiment, since the plate materials (45 ... 49) processed by sheet metal processing are assembled to form the case 25 for accommodating and supporting the traverse device 21, the belt transmission means 84 and the worm speed reducer 83, The case can be made stronger and lighter than the conventional case made of the angle material, and the durability and reliability are improved. In addition, the mono bolt 65 that fastens and fixes each plate is only inserted from one side,
The case 25 can be easily assembled only by the operation from the outer surface, and the assembling work can be performed in a short time and easily as compared with the case of using welding or bolts and nuts. Since the bent portions 50 and 51 of the middle plate 49 and the lower plate 45 and the surface portions of the side plate 46 and the box plate 47 are made to function as the mounting portions for the respective components of the power transmission mechanism 26, they are separated. The need for mounting plates and brackets is eliminated, and the number of parts can be greatly reduced. And assembly hole 5
2, 53, 55, 58, 61, bearing holes 139, 140, etc. can be opened in advance before assembly, and there is no room for error in the positional relationship with each other, and the assembling accuracy is improved.

In the present embodiment, the continuously variable transmission pulley 90 is provided on the belt transmission means 84 so that the rotational speed to be transmitted can be freely controlled. Therefore, the conventional speed change gear in the gear train is replaced. There is no such trouble as described above, and it is possible to perform quick and precise twist number control.

In this embodiment, the double twister composed of the upper and lower two-stage weights is shown, but the present invention can be similarly applied to the single-stage double twister. Further, the present invention is not limited to the double twister, but can be widely applied to textile machines provided with a traverse device for converting a rotary motion into a reciprocating motion to perform a predetermined traverse.

[0026]

In summary, according to the present invention, the following excellent effects are exhibited.

(1) According to the configuration described in claim 1, the processing time and the manufacturing cost can be reduced.

(2) According to the configuration of claim 2, the cam member can have a sufficient strength to withstand the engagement with the lever member.

(3) According to the structure of claim 3, the strength of the cam member can be further improved.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a traverse device according to the present invention.

FIG. 2 is a front view showing the cam member of FIG.

FIG. 3 is a profile diagram for explaining the operation of FIG.

4 is a side sectional view showing the belt transmission means of FIG. 1. FIG.

5 is a side sectional view showing the belt transmission means and the traverse device of FIG. 1. FIG.

FIG. 6 is a front view showing a main part of FIG.

7 is a plan sectional view of FIG.

8 is a front view showing a power transmission path of FIGS. 4 and 5. FIG.

9 is an exploded perspective view showing the case of FIG. 1. FIG.

10 is a perspective view showing a state where the case of FIG. 9 is assembled.

11 is a diagram showing a main part of FIG. 10, (a) is an enlarged view of part A of FIG. 10, and (b) and (c) are perspective views showing the operation thereof.

12 is a front view of FIG.

FIG. 13 is a top view of FIG.

FIG. 14 is a side view of FIG.

15 is a top view showing an exterior plate provided in the case of FIG.

16 is a rear view of FIG.

FIG. 17 is a side view of a double twister equipped with a conventional traverse device.

[Explanation of symbols]

 21 traverse device 22 rotating shaft 23 traverse cam (cam member) 24 traverse lever (lever member) 25 case 28 engaging surface 31 rib

Claims (3)

[Claims] 1. A traverse device for converting a rotary motion into a reciprocating motion, comprising: a press-formed cam member attached to a rotary shaft; and a lever member that engages with the cam member and swings appropriately. Traverse device. 2. The traverse device according to claim 1, wherein the cam member is a plate having an outer peripheral surface formed with an engaging surface for engaging with the lever member, and the outside thereof being bent. 3. The traverse device according to claim 1, wherein the cam member has a rib extending in a radial direction.