JPH06207328A - Machine for forming winding roll for combing machine - Google Patents

Abstract

PURPOSE: To decrease the scrap quantity of a lap by automatically breaking the lap after a lap roll is formed to a prescribed size by a pressing element movable between a pause position and a working position. CONSTITUTION: A pressing roller 9 which does not come into contact with the lap 4 in the pause position and presses the lap 4 to a winding-on roller 1 with prescribed force in the working position is disposed in the process of forming the lap 4 introduced via plural calender rollers 5, 6, 7 and 8 to the lap roll 3 on a pair of the winding-on rollers 1 and 2. The pressing roller 9 is made movable between both positions by a swiveling arm 10 with a cylinder 14 a hydraulic or pneumatic type. When the lap roll 3 of a preselectable size is formed by a controller 17, a drive assembly 16 is controlled to stop the calender rollers 5, 6, 7 and 8. The winding-on rollers 1 and 2 are further rotated somewhat and cylinder 14 is actuated to move the pressing roller 9 from the pause position to the working position, by which the lap 4 is broken.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a machine for forming a lap roll for a combing machine, which comprises two winding rollers which are parallel to each other and can be driven, and a first winding roller of the two winding rollers. And a plurality of calendar rollers arranged adjacent to the outer peripheral portion of the roller.

[0002]

2. Description of the Related Art A lap winder in which one wrap roll is located above two rotating winding rollers and is adapted to be rotated by both winding rollers is known.
It is known. In this case, the rotating wrap roll is supplied with a wrap to be wound up, which is formed, for example, from stretched slivers lying next to each other. Usually, a row of calendar rollers is arranged adjacent to the outer periphery of the first winding roller of the two winding rollers, and the supplied lap passes between the calendar rollers. The calendar roller serves to compress the wrap and smooth its surface, whereby the lap layers lying above and below each other in the formed lap roll are
It is less likely that they will get tangled with each other, thus allowing the lap to be replayed later without problems.

The calender roller also automatically tears the wrap supplied to the lap roll when the wrap roll reaches a preselected desired size (which is detected, for example, by a counter). Can also be used for Therefore, for a short period of time, the peripheral speed of the lap roll is higher than that of the calender rollers, which causes the lap to have a nip line between the last two calender rollers and the first hoist. Tear between the roller and the contact line of the wrap roll.

However, the section from the nip line between the last two calender rollers to the contact line of the lap roll is relatively long, for example, about 30.
It reaches to cm. Thus, after tearing, the end section of the wrap wound on the wrap roll and the beginning section of the wrap fed will have a tear line and an elongated thin point, and such a thin point. May extend over a length of up to, for example, 30 cm measured in the longitudinal direction of the wrap. However, for use in combing machines, the lap requires a clean linear end line,
Only by obtaining such an end line will it be possible to join the wrap start of the new wrap roll with the wrap end of the preceding wrap roll. In order to form such a linearly extending termination line, the end of the wrap has an end section having a length of as much as 30 cm (i.e. the tear line produced by the automatic tear mentioned above and the thin point). It is necessary to cut away the end section (including and) and dispose as waste.

[0005]

SUMMARY OF THE INVENTION The object of the invention is therefore to improve a machine of the type mentioned at the outset so that the wrap fed to the lap roll can be of a desired size, for example in which the lap roll can be preselected. When it is reached, it can be torn automatically, and at this time, a clean tear line can be produced which extends over a very short section in the longitudinal direction of the wrap, for example, a short section of about 10 cm. It is possible to significantly reduce the amount of waste that is discarded as waste.

[0006]

In order to solve this problem, in the structure of the present invention, the first winding roller and the outer peripheral portion of the last calendar roller of the calendar rollers are adjacent to each other. A pressing element is arranged which serves to press the wrap located on the outer circumference of the first winding roller against the outer circumference of the first winding roller.

[0007]

By means of the pressure element provided according to the invention, it is desired that the wrap at least tear the wrap, for which purpose the wrap roll is rotated at a higher peripheral speed than the calender rollers. In this case, it can be pressed against the outer peripheral portion of the first winding roller. This causes the wrap to tear between the nip line between the last two calender rollers and the nip line between the pressing element and the first winding roller. In this case, the lap length between the nip lines can be made sufficiently small without difficulty, for example shorter than about 10 cm. That is the first
This is because the size of the pressing element in the circumferential direction of the winding roller can be made significantly smaller than the diameters of the winding roller and the completed wrap roll. And the tear line formed in the wrap no longer extends beyond said wrap length in the longitudinal direction of the wrap.

[0008]

Embodiments of the present invention will now be described with reference to the drawings.

The machine shown has two drivable winding rollers 1, 2 which are arranged in parallel at a small distance from each other. A lap roll 3 is arranged in contact with both winding rollers 1 and 2 during the operation of the machine, and the wrap roll 3 is rotated by the winding roller. The rotating wrap roll 3 is supplied with a wrap 4 to be wound up, which wrap 4 is formed in a manner not shown, for example from stretched slivers arranged next to one another. Adjacent to the outer periphery of the first winding roller 1, four calendar rollers 5, 6, 7,
8 are arranged in a line, and before the wrap 4 reaches the lap roll 3 while being located on the outer peripheral portion of the first winding roller 1, the wrap 4 has the calender rollers 5, 6, 7,
It penetrates between 8 meandering.

In the embodiment shown in FIG. 1, a pressing roller 9 is arranged adjacent to the outer peripheral portion of the first winding roller 1 and the outer peripheral portion of the last calendar roller 8. Reference numeral 9 serves to press the wrap 4 located on the outer peripheral portion of the first winding roller 1 against the outer peripheral portion of the winding roller 1. The pressing roller 9, which preferably has a coating of a friction-increasing material such as rubber, is in continuous contact with the wrap to be moved during the winding of the wrap 4 onto the wrap roll 3. It may be rotated by this wrap. However, with such a configuration, there is always a possibility that a wound body will be formed on the pressing roller 9. The pressure roller 9 is therefore preferably movable in a substantially radial direction with respect to the first winding roller 1 between a rest position indicated by a dashed line and a working position indicated by a solid line, in which case The pressing roller 9 is not in contact with the wrap 4 positioned on the outer peripheral portion of the first winding roller 1 in the rest position, and in the working position, the wrap 4 is moved by the predetermined force of the first winding roller 1. It is pressed against the outer circumference. In the illustrated embodiment, the pressure roller 9 has bearing pins at both ends, which bearing pins are rotatably supported on each one pivot arm 10. And both swivel arms 10
Has a shaft 11 pivotally mounted on a machine frame, not shown. The shaft 11 further comprises arms 12 on both sides of the machine, the free ends of both arms 12 being pivotally mounted on the thrust bar 13 of a hydraulic or pneumatic cylinder 14. Cylinder 14
It itself can swivel around an axis 15 fixed to the frame.

As described above, the pressing element that is movable in the substantially radial direction with respect to the first winding roller 1, that is, the pressing element that presses the wrap 4 against the outer peripheral portion of the first winding roller 1, It does not necessarily have to be a rotatable winding roller, but may be a simple clamp rod. However, such a clamp rod, when moved to the working position, will have the last two rods as desired.
The wrap may tear not only between the two calendar rollers and the clamp rod, but also behind the clamp rod. In order to avoid such a risk, it is advantageous for the clamp rod to be movable in its working position over a certain section together with the outer circumference of the first winding roller. The embodiment configured as described above will be described below with reference to FIGS. 2 and 3.

In the embodiment shown in FIGS. 2 and 3, the first
Of the winding roller 1 and the last calendar roller 8
Adjacent to the outer periphery of the clamp rod 19, the first
A clamp rod 19 for pressing the wrap 4 located on the outer peripheral portion of the winding roller 1 to the outer peripheral portion is arranged. Then, the clamp rod 19 presses the wrap 4 with a predetermined force on the outer peripheral portion of the first hoisting roller 1 in a working position shown in the drawing in a substantially radial direction with respect to the first hoisting roller 1. It is movable between a working position and a rest position (not shown), that is, a rest position in which the clamp rod 19 is not in contact with the wrap 4 located on the outer periphery of the first winding roller 1. Furthermore, the clamp rod 19 is slidably guided at both ends in a slot provided in each one pivot arm 20. At the end of the clamp rod 19, a hydraulic or pneumatic cylinder 22 is engaged, which cylinder 22 can be swiveled with the swivel arm 20 about an axis 23, that is to say the starting end shown in solid lines. A swivel is possible between the position and the end position indicated by the dashed line. The swing arm 20 is normally in contact with a stopper 25 fixed to the frame at a starting end position thereof by a spring 24.

The illustrated machines each have a drive 16, which drives two winding rollers 1, 2 and four calendar rollers 5, 6, 7, 8 on a lap roll 3. During the operation for winding up the lap 4, the lap 4 is rotated at substantially the same peripheral speed. In this case, hydraulic or pneumatic cylinders 14; 22
Holds the pressing roller 9 or the clamp rod 19 in its rest position, that is, at a distance from the wrap 4 located on the outer circumference of the first winding roller 1.

Furthermore, a control device 17 is provided for automatically stopping the machine when the lap roll 3 reaches a preselectable desired size. The control device 17 has, for example, a counter (not shown),
In this case, the counter counts the rotations of the winding rollers 1 and 2 and measures the length of the wrap 4 wound around the wrap roll 3. When the desired length is obtained, the control device 1
7 controls on the one hand a hydraulic or pneumatic cylinder 14;
2 is used to move the pressing roller 9 or the clamp rod 19 to its working position, at which time the pressing roller 9 or the clamp rod 19 presses the wrap 4 with a predetermined force against the outer peripheral portion of the first winding roller 1. On the other hand, the control unit 17 controls the drive unit 16,
Is used to rotate the winding rollers 1, 2 at a higher peripheral speed than the calender rollers 5, 6, 7, 8 for a short time, whereby the lap 4 causes the last two calender rollers 7,
8 and the nip line between the pressing roller 9 or the clamp rod 19 and the winding roller 1 are torn. In this case, the control device 17 simply stops the drive devices of the calendar rollers 5, 6, 7, and 8,
It is advantageous if the drive for the winding rollers 1, 2 is further rotated to some extent until the wrap 4 tears. In this case, the pressing roller 9 is rotated by the winding roller 1. The clamp rod 19, which cannot rotate, is carried to some extent in the circumferential direction of the winding roller 1 by the wrap 4 with which the clamp rod 19 is in contact, against the action of the spring 24. After that, the hydraulic or pneumatic cylinder 14; 22 is controlled again and this cylinder 14; 2
The pressing roller 9 or the clamp rod 19 is returned to the rest position by 2. The spring 24 is used for the clamp rod 19
At the same time, the turning lever 20 is turned back to the starting position shown by the solid line in which the stopper 25 is in contact.

From the nip line between the last two calender rollers 7, 8 in order to ensure that the tear line of the wrap 4 extends over only a very short section in the longitudinal direction of the wrap, the pressing roller 9 or the clamping rod. The distance traveled to the nip line between 19 and the winding roller 1 is as short as possible. For this reason, the pressure roller 9 has a relatively small diameter, advantageously at most 1/3 or 1/2 of the diameter of the calendar rollers 5, 6, 7, 8.
And the pressing roller 9 is arranged as close as possible to the last calendar roller 8. Similarly, the clamp rod 19 is also arranged very adjacent to the calendar roller 8. In today's most common machines for forming wrap rolls, the winding roller and the finished wrap roll have a diameter of, for example, about 60-70 cm, and the calender roller has a diameter of, for example, about 16 cm. In such a machine, the pressure roller according to the invention has a diameter of, for example, about 4 cm.

[Brief description of drawings]

FIG. 1 is a vertical sectional view schematically showing an embodiment of a lap roll forming machine.

2 is a similar vertical cross-sectional view showing a modified embodiment of the embodiment shown in FIG.

3 is a cross-sectional view taken along the line III-III in FIG.

[Explanation of symbols]

1, 2 winding roller, 3 wrap roll, 4 wrap, 5, 6, 7, 8 calendar roller, 9 pressing roller, 10 swivel arm, 11 axis, 12 arm, 13 thrust bar, 14 cylinder, 15 axis,
16 drive device, 17 control device, 18, 1
9 clamp rod, 20 swivel arm, 21 claw rod, 22 cylinder, 23 axis, 24 spring,
25 stoppers

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Giancarlo Mdini Switzerland Winterthur Theodor-Reuters-Week 6

Claims (8)

[Claims] 1. A machine for forming a wrap roll for a combing machine, comprising two winding rollers (1, 2) which are parallel to each other and can be driven, and a first winding roller of the two winding rollers. A plurality of calendar rollers (5, 6, 7,
8) and a first winding roller adjacent to an outer peripheral portion of the first winding roller (1) and an outer peripheral portion of the last calendar roller (8) of the calendar rollers. Wrap (4) located on the outer periphery of (1)
Machine for forming a wrap roll for a combing machine, characterized in that a pressing element (9; 19) is arranged for pressing the outer circumference of the first winding roller (1). 2. Machine according to claim 1, wherein the pressing element (9) is a rotatably mounted pressing roller. 3. The pressing element (9; 19) is movable in a substantially radial direction with respect to the first winding roller (1) between a rest position and a working position, in which case the pressing element (9). 19) is not in contact with the wrap (4) located on the outer periphery of the first hoisting roller (1) in the rest position, and the wrap (4) is moved to the first position by a predetermined force in the working position. Machine according to claim 1 or 2, adapted to be pressed against the outer circumference of the winding roller (1). 4. The pressure roller (9) has a bearing pin, which is rotatably supported on a movable element (10) by means of a hydraulic or pneumatic cylinder (14). Machine according to claim 2 or 3, characterized in that the pressing roller (9) is movable between a rest position and a working position. 5. The element (10) is a swivel arm, the swivel arm (10) being located on a common axis (11) rotatable by a hydraulic or pneumatic cylinder (14). The machine according to claim 4, wherein 6. Machine according to claim 3, characterized in that the pressing element (19) is a clamp rod. 7. Machine according to claim 6, wherein in its working position the clamping rod (19) is movable in the circumferential direction together with the outer circumference of the first winding roller (1). 8. A drive device (16) for rotating a winding roller (1, 2) and a calendar roller (5, 6, 7, 8), and a control device (for controlling the drive device (16)). 17) is provided, in which case the control device (17) forms the lap roll (3) of a pre-selectable size after each time the calender rollers (5, 6, 7, 8). ) Is stopped, while the winding rollers (1, 2) are made to rotate somewhat more, and in this case, the control device (17):
That is, the control device (17) operates the drive means (14) for moving the pressing element (9; 19) from the rest position to the working position each time after forming the wrap roll (3) of a preselectable size. 8. A machine according to any one of claims 3 to 7, which is configured as follows.