JPS594570A - Device which store yarn, tape, ribbon, etc. used for fiber product, etc. and supply user-machine with them - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention allows thread, tape, ribbon, etc. used for textile products to be pulled out from a reel, bobbin, etc., and placed under very low tension by the user.

Concerning equipment for feeding machines. The device comprises a rotatable hollow arm adapted to wind thread, tape, ribbon, etc. in the form of turns on a support consisting of a plurality of sturdy guides, each said guide being made in the form of a ring. These guides, which have a C-shaped cross-sectional shape, all open outward from the ring and accommodate balls or rollers that are in contact with each other and Projects outward from the guide.

The support is mounted on a bearing carried by a shaft, and a thread distribution arm projects from the shaft. A worm and a screw are mounted on the shaft, and a ball protruding from each of the guides engages with the guide over a portion of its path.

As the shaft rotates together with the yarn distribution arm, which rotates the worm and screw, the ball translates in its respective guide, moving the yarn turn along the yarn turn support to its open end. The thread is then pulled out at the open end and supplied to the user or machine.

The present invention relates to a device for storing threads, tapes, ribbons, etc. used in textile products, etc., and supplying the stored yarns, tapes, ribbons, etc. to users and machines.

As is well known, most users and machines are not designed to receive yarn directly from a bobbin, spool, reel, etc., but instead a yarn supply system is formed to supply yarn to the user or machine. After the thread is wound around the device, the thread is supplied to the user and the machine.

Most conventional types of equipment are constructed in the form of a drum, with turns of thread wound around one end of the drum, and thread exiting from the other end of the drum. further engaging a yarn turn wrapped around one end of the drum to translate the yarn turn to the other y portion of the drum;
A member is provided for pulling out the thread from this end.

U.S. Patent Nos. 3,672,590 and 3,702,17
In devices of the type disclosed in No. 6, the thread is drawn through a ring or feed hook while the drum rotates about its axis.

U.S. Patent Nos. 3,093,339 and 3,834,63
In another type of device, disclosed in No. 5, the drum around which turns of yarn are wound is fixed, and the yarn is fed to the drum and base by a rotary arm. U.S. Patent Nos. 2,625,340 and 3.419,
225 and 3.093.339, mechanical members of various designs are known for translating turns of yarn along the outer surface of the drum, and such machines The element comprises a plate that swings with respect to the drum and is located at the end of the drum where the yarn turns are stacked. A part of the surface of said plate is made in the shape of an arc and is always in contact with the nearest of the turns of the thread, the last turn being placed on a rotary drum. There is. As the plate rocks, the turns in contact with the plate move, which causes adjacent turns on the drum to slide forward.

However, drawbacks of conventional translational systems such as those described above have been pointed out, for example, that the turns tend to stick together and, when using certain yarns, that the turns tend to stack one on top of the other. ing. This is especially true when the threads, which are usually made from chemically synthesized fibers, are processed into flat continuous thin ribbons of large cross-sectional area.

Other systems for moving yarn over a drum are also known, such as that disclosed in US Pat. No. 1,052,212. The apparatus used in this system includes two sets of circumferentially extending bars and members for moving each set of bars radially and axially with respect to the nodes of the other set. Each set of bars is designed to pink up the yarn wound on the bar, move it axially, and transfer it onto the other set of bars. However, drawbacks of this yarn turn movement system have been pointed out, such as the tendency for the yarn turns to fall off and pile up on top of each other, and the lack of control means for positioning the yarn turns. ing.

U.S. Patent Nos. 3,131,729 and 3,776.48
In another type of device, such as that disclosed in No. 0 (see Figure 10), the turns of thread are wrapped around a plurality of belts, all of which are distributed around the central axis of the device. It is located. The belts are each made in the form of a loop and are wound over two pulleys located at each end of the device. A boob attached to one end of the device is placed coaxially with the device and is made integral with a worm driven to rotate by a motor, and a gear meshing with a screw. When the worm and screw rotate, the gear engaged with the worm and screw rotates, and the pulley rotates accordingly, and the belt supported on the pulley moves in translation.

The opposite part of the loop-shaped belt defines a plane bearing the thread turn and serves to simultaneously move the thread turn to the open end of the device.

That is, a thread turn wound around a bearing surface consisting of said belt near one end of the device is carried by the belt to said end of the device from which the thread is withdrawn.

For this type of device, the construction is very complex (as it requires the use of a large number of pulleys and gears) and the thread is pulled out of the device at a very high speed while rubbing against the belt. Therefore, rapid wear of the belt has been pointed out as a drawback. Furthermore, because this type of device is frequently stopped and started, the yarn resting on the belt tends to slip, which can cause turns of yarn to pile up on top of each other. Furthermore, since the surface of the belt supporting the yarn turns is uniformly smooth, it is not possible to control the position of the yarn turns placed on the belt.

45 In devices having a fixed drum adapted to line up the turns of yarn using a rotary arm, the drum mounted on a rotating shaft carrying the yarn distribution arm is prevented from rotating. Various measures are being taken to achieve this goal. U.S. Patent Nos. 3,093,339, 3,720,384, 3,737,112, 3
, 796,384, 3,776,480 and French Patent No. 2,103,687, 1! i number of rings, gears are mounted on the rotary, arm or distribution arm,
These rings and gears are arranged coaxially with each other, and are constructed integrally with the fixed pace, plate, and drum. This mechanical system, which uses a large number of meshing gears, is expensive to manufacture and assemble, and is noisy during operation.

Additionally, in devices of the type disclosed in U.S. Pat. No. 3,834,635, rotation of the drum is prevented by incorporating permanent magnets into the drum, and a fixed structure provided on the outside of the drum prevents rotation of the drum. Another permanent magnet is incorporated in the body opposite the permanent magnet that is integrally attached to the drum. In the case of this device, especially,
Disadvantages pointed out include the inability to hold the drum completely still when the yarn is pulled from the drum intermittently at high speeds, and the increased manufacturing costs.

Finally, a device comprising a stationary drum and a rotatable yarn distribution arm and configured to prevent rotation of the drum through the use of rolling bearings is disclosed in U.S. Pat.
No. 944,145 and No. 3.791,598. However, disadvantages of this device have been shown to be high manufacturing costs due to the high cost of the bearings, and the high energy consumption required for operation due to the use of the bearings.

It is therefore a principal object of the present invention to provide a system suitable for supplying yarn, tape, ribbon, etc. made from chemically synthesized materials etc. to a user, machine, and winding turns of yarn at the correct spacing and in the correct position. It is an object of the present invention to provide a device which can be easily constructed and manufactured at low cost, has a long life, and is reliable in operation.

To achieve the above objects, a sturdy body capable of being attached to a fixed structure; an elongated shaft rotatably supported on at least one rolling bearing carried by the sturdy body; a drive member for rotationally driving a thread turn support, a thread turn support supported at one end of the shaft by at least one rolling bearing, a thread turn distribution arm, a free end of the distribution arm extending laterally from the thread turn support; the yarn turn distribution arm is integral with the shaft and extends to the other end of the shaft and passes through a passageway that is open at the other end; A device of the initially mentioned type comprising a member for preventing rotation of the turn support on the shaft and means for moving the yarn turn along the yarn turn support to the support, said yarn turn support comprises a plurality of sturdy guides distributed around the axis of said shaft, each guide defining an annular passage opening outwardly from said ring; The means for advancing yarn turns comprises a plurality of balls or rollers movably housed within said annular passageway and a worm coaxially fixed to said shaft.

a screw, the balls or rollers protrude outward from the annular passage and are in contact with each other, and the worm,
According to the invention, a device has been proposed which is characterized in that it is engaged with a screw.

According to a preferred embodiment of the invention, the means for preventing rotation of the thread turn support consist of two annular bevel gears, one of which is located on one side of the thread turn distribution arm. and another bevel gear is disposed on the other side of said yarn turn distribution arm, said bevel gear being mounted on said shaft by a separate rolling bearing, and said bevel gear being mounted on said shaft by a separate rolling bearing, and said bevel gear being mounted on said shaft by a separate rolling bearing; intersect with each other and with the axis of the shaft,
The teeth of the two bevel gears are in mesh with each other in a region that is approximately diametrically opposite to the region where the arm protrudes from between the two bevel gears, and the extending member is engaged with each of the two bevel gears. integrally formed and projecting radially outwardly, one end formed on said sturdy body and the other end anchored within a seat formed on said thread turn support and swingable within said seat. It is designed to move.

The present invention will now be described in detail with reference to the accompanying drawings, which illustrate embodiments of the invention.

As shown, the device according to the invention comprises a sturdy body 1, which can be attached to a fixed structure, and in which a motor is connected to the fixed structure. installed. Only the outer casing 2 of this fixed structure is shown in FIG. An elongated shaft 4 is mounted on the rolling bearing 6, and the shaft 4 is rotationally driven by a motor. An elongated arm 5 projects laterally from the shaft 4, and a passage passes through the elongated arm 5 and opens at the free end of the arm 5.

As shown in FIG. 1, the passageway extends along a portion of the shaft 4 and opens at the open end of the shaft 4 on the left side of FIG.

A rolling bearing 6 is mounted on the shaft 4 and carries the thread turn support rotatably with respect to the shaft 4. The support consists of a substantially disk-shaped sturdy structure 7 carrying eight sturdy guides distributed around the axis of the shaft 4, each of which is shown in FIG. It consists of a generally ring-shaped plate 8 (see also FIGS. 3 and 4) as shown in FIG. It is surrounded by 9. Said side plate 9 cooperates with a ring-shaped plate 8 to define an outwardly open passage in which a series of balls 10 rolling on the ring-shaped plate 8 are accommodated, 10 is held in the channel or U-shaped guide by the sides, plate 9. As shown in the accompanying drawings, a portion or head of each ball projects outwardly from each passageway or U-shaped guide. You may use a roller instead of a ball.

The outermost portion of each passageway or U-shaped guide has a generally rectangular shape, and the outermost portions of the rectangular shape of the plurality of passageways or U-shaped guides, as shown in FIG. They are equally spaced from each other and distributed along the cylindrical surface. In Figure 2, only two of these passages or U-shaped guides are shown in full outline, the others being shown by dashed lines extending in the direction of the diameter. .

The inwardly facing part of the passage or U-shaped guide also has a short rectangular cross section, and the ball 10 is connected to the spiral groove of the worm and screw 11 keyed to the shaft 4 in the inwardly facing part. is engaged in. Since the structure 7 is designed not to rotate together with the passage or the U-shaped guide, the worm and screw 11 rotate as the shaft 4 rotates.
As the ball rotates, the ball 10 will move through each passage or U-shaped guide.

Thus, the balls all move simultaneously along the outer circumference of the passageway or U-shaped guide from left to right as viewed in FIG. 1 at the same speed.

If the motor driving said shaft 4 in rotation rotates in the opposite direction to that previously mentioned, it will drive the ball from the left to the right in the outer part of the passage or U-shaped guide (as shown in FIG. 1). Designed to be always on the move
A worm and screw having an S-line direction are used.

Although not shown in the accompanying drawings for simplicity of illustration, the worm and screw may be provided with two consecutive parts threaded into the passageway or U-shaped guide, one part being reversed with respect to the other part. facing. the worm;
The screw is keyed onto the shaft 4 so that the ball engages with -5(lS) of the turns of the thread and leaves the passage or U
The turn of the thread can be moved along with the ball in the desired direction on the letter-shaped guide.

In order to prevent the structure 7 from rotating with respect to the shaft 4 together with the channel or U-shaped guide, two annular bevel gears 12 and 16 are provided, one bevel gear on one side of the arm 5. and the other bevel gear is located on the other side of the arm 5 (see FIG. 1).

The bevel gears 12 and 16 each have a rolling bearing 1.
4 on the shaft 4, the axes of the bevel gears 12 and 16 intersect with each other and with the axis of the shaft 4.

In the illustrated embodiment, the axes of the two bevel gears 12 and 16 are inclined at the same angle with respect to the axis of the shaft 4.

As shown in FIG. 1, the extending members engage with each other in a region 16 located at a position opposite to the bevel gears 12 and 16 in a region where the arm 5 protrudes from between the bevel gears 12 and 16. 17 and 18 are the two bevel gears 12, respectively.
and 16, projecting radially outward (see FIG. 5), and anchored in a seat defined by side walls 19 and 20, which are integral with the body 1 and the structure 7. It is made to oscillate.

During rotation of the shaft 4, the bevel gear 12 is rotated by the elongated member 16, which is attached to a seat defined by the side wall 19.
It is easy to understand that the bevel gear 12 cannot rotate because it is restrained. While the shaft is rotating, the extension member swings within the fixed seat because the axis of the bearing 14 is tilted.

Since the bevel gear 13 meshes with the bevel gear 12 in the region 16, the bevel gear 16 is also prevented from rotating, and its extension member 18 also vibrates or oscillates in a fixed seat defined by the side walls. Therefore, the bevel gear 16 cannot rotate and thus the structure 7 and the passage or U-shaped guides 8 and 9 are prevented from rotating together with the ball 10.

Due to the inclination of the bearings 14 and 15, during the rotation of the shaft there is a continuous change in the area where the teeth of the two bevel gears are in contact with each other, so that from the shaft 4 to said arm 5 there is a continuous change. The teeth of the bevel gear always mesh with each other in a region that is diametrically opposite to the region where the bevel gear protrudes.

The tape or thin ribbon now passes in the direction of arrow A in FIG. and then spirally wound onto a passageway or U-shaped guide. Such ribbon or tape, shown in dashed lines in FIG. 1 and designated by the reference numeral 22, is wound spirally over guides 8 and 9, as shown in more detail in FIG. It will be done. In FIG. 3, the tape or ribbon turn is shown in cross-section and in the form of small rectangles 26 which slide over the open edges of the guide, plate 9. Or it is made to rub. The thread pulled out from the open end of the device passes through a guide ring 25 carried by a fixed arm 26 and
The sheet is unwound by sliding around the smooth annular edge of a movable body 60 comprising a plurality of sheets. Thus, the shoulders 61 of a plurality of elongated rods 62 (eight elongated rods in the illustrated case) projecting from the structure 7 in parallel to each other are inserted into the movable body 60. The movable body 30 is held on the end 61 of the rod 62 by one or more return springs 66 (see FIG. 6), said return springs 66 being elastically deformable outwards. When excessive pressure is applied due to the turns of the thread wound on the passage or the U-shaped guide, the movable body 60
The connection between the movable body 60 and the rod 62 is released, and the movable body 60 is tilted outward.

To avoid this situation and to ensure correct yarn delivery, the device also stops the motor driving the device when a predetermined maximum number of turns have been wound onto the passageway or U-shaped guide. and includes one or more sensing members operative to automatically start the motor when the number of turns is too low due to excessive thread withdrawal from the user or machine. The detection member for controlling the stop and start of the motor is originally known and is not described in this specification for the sake of brevity, but for example, it is disclosed in US Pat.
It is preferred to use all microsinches operated by thread turns of the type disclosed in US Pat. No. 131,729 and US Pat.

The device according to the invention described above, under the action of controlled tension, completely prevents the turns from being folded together,
The use of balls to supply thread, tape, ribbon, etc. to the user or machine has proven to be very effective in maintaining the correct spacing during forward movement. . The device has also been shown to be very wear-resistant and does not suffer from the drawbacks of conventional devices when starting and stopping the drive motor suddenly.

While the shaft 4 is rotating, the sturdy structure 7
For example, balls, bearings as mentioned in the first part of this specification.

By using parts other than the bevel gears 12 and 13, such as systems, magnets, and other gear meshing systems,
It goes without saying that the passageway or U-shaped guide as well as other parts or components integral therewith may also be held stationary. However, the embodiment described with reference to the accompanying drawings is very simple in construction;
Since it is inexpensive and works reliably, it is preferable to adopt it.

[Brief explanation of drawings]

FIG. 1 is a partially axial cross-sectional view of the entire device according to the present invention. FIG. 2 is a cross-sectional view taken along the line ■-■ in FIG. FIG. 3 is an enlarged detailed view of the main parts of the device in the area where the thread distribution arm is located in the vicinity of the ball, heathing and guide; FIG. 4 is an enlarged cross-sectional view of the ball support guide. FIG. 5 is a partially enlarged front view showing a portion of the bevel gear and a correspondingly shaped extension housed within the fixed seat; FIG. 6 is an enlarged sectional view detailing the movable member attached to the open end of the device and serving as a safety element; 1... Sturdy body, 2... Outer casing,
6... Rolling bearing, 4... Elongated shaft, 5... Elongated arm, 6... Rolling bearing, 7... Sturdy structure, 8... Ring-shaped plate, 9... Side , plate, 10... ball, 1
1...Worm, screw, 12, 13...Bevel gear, 14, 15...Rolling bearing, 16...
・Meshing area, 17° 18...Extending member, 19.
20... Side wall, 21... Metal ring, 22... Ribbon or tape, 25... Guide ring metal, 26... Fixed arm, 60... Movable body, 61... End of rod Department, 62
...a long and slender rod. Agent Tsuneteru Aragaki Masu auxiliary d: Written (method) Toku ♂ 1 Kao Director /, Incident Life Special Application No. 1988-66288 2, Name of invention ＼ 3 Traveling person, 11 I! Relationship to 1 Patent applicants Savio & C, Nis, B, A. ≠Representative Osamu July 6, 1982

Claims (5)

[Claims] (1) a sturdy body attachable to a fixed structure; an elongated shaft rotatably supported on at least one rolling bearing carried by the sturdy body; and a drive for rotationally driving the shaft. a thread turn support carried on one end of the shaft by at least one rolling bearing; a thread turn distribution arm; a free end of the distribution arm extending laterally from the thread turn support; the yarn turn distribution arm is integral with the elongated shaft and extends through a passageway that is open at the other end of the shaft; A storage device for storing yarns, tapes, ribbons, etc. used in textile products, etc., comprising a member for preventing rotation on the shaft, and a means for moving the yarn turns along the yarn turn support to the support. and a device for supplying a user to a machine, the thread turn support comprising a plurality of sturdy guides distributed around the axis of the shaft, each guide opening outwardly from the ring. a plurality of balls or rollers movably housed within the annular passage, and a plurality of balls or rollers movably housed within the annular passage, and the means for moving the yarn turns are arranged coaxially with the shaft. fixed worm,
The ball or roller is in contact with each other within the annular passage in a state of protruding outward from the annular passage, and is engaged with the worm and the screw in a portion of the annular passage. A device characterized by: (2) said worm screw is removably pivoted on said shaft and comprises two consecutive worm screws 93 sections with passages or U-shaped guides, one section of which has a passage or U-shaped guide; Device according to claim 1, characterized in that the guide is made inversely with respect to that of the other part, so that the ball engages only one part of the worm screw parts. . (3) A movable body is attached near the free end of the yarn turn support, and the yarn turn is moved toward the movable body while being supported by the ball or tach roller, and the yarn turn 3. The device according to claim 1, wherein the movable body is able to move to a position where the yarn supply is cut off while being subjected to pressure applied by the above. (4) The means for preventing rotation of the thread turn support comprises two annular bevel gears, one of the two bevel gears being arranged on one side of the thread turn distribution arm and the other being disposed on one side of the thread turn distribution arm. a bevel gear is disposed on the other side of the yarn turn distribution arm, the bevel gear being mounted on the shaft by a separate rolling bearing;
The axes of the two bevel gears intersect each other and the axis of the shaft, and the teeth of the two bevel gears form a region where the arm protrudes from between the two bevel gears. The two bevel gears are in mesh with each other at diametrically opposite regions, and the extending member is integrally formed with each of the two bevel gears.
projecting radially outwards and being anchored to a seat formed on one side on said sturdy body and on the other side on the front thread turn support and swinging within said seat. An apparatus according to any one of claims 1 to 3. (5) The device according to claim 4, wherein the axes of the two bevel gears are inclined at the same angle with respect to the axis of the shaft.