JPH0577982A - Rotary turret type rewinding machine - Google Patents

Abstract

PURPOSE:To continuously perform a frame change by setting up a roll having a function of pressing winding so as to prevent a surface layer part of the winding from loosening by centrifugal force, in the case of the frame change of the winding. CONSTITUTION:In the case of frame changing of a winding 7 in a rotary turrent type winding machine, a roll 1 having a function of pressing the winding 7 is set up. This roll 1 is pressed at a 0.2 to 1.0kg/cm line pressure. As a result, a surface layer part of the winding is prevented from loosening by centrifugal force, and the frame change can be continuously performed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary turret type winder capable of preventing the surface layer of the winding after changing the frame from being loosened by centrifugal force and continuously changing the frame. ..

[0002]

2. Description of the Related Art In a paper manufacturing factory, a plastic factory, a textile factory, or the like, a sheet is applied with a coating device or a winder device for obtaining a small winding, and the sheet is wound to a desired width and outer diameter. Various types of rotary turret type winders (hereinafter, simply referred to as "winders") are used to continuously wind the wound winder.

To change the winding frame in such a winding machine, usually, the next winding shaft is installed on the arm of the winding machine to prepare for changing the frame, and when the winding has been wound up to a predetermined diameter. The turret starts to rotate and the next winding shaft is rotated to the frame changing position. Subsequently, the motor is activated to accelerate the next take-up shaft to the machine speed, then the press roll presses the sheet against the take-up shaft, the cutting knife works to cut the sheet, and The sheet is wound up.

[0004] However, since the already wound up coil rotates at a high speed and its weight is large, the inertial force of the wound coil is large and it does not stop immediately. This phenomenon becomes more remarkable as the speed of the coating device increases. Then, the brake is applied to stop the winding, but it takes several tens of seconds until the winding is actually stopped. During that time, the winding is rotated at a high speed, centrifugal force is applied, and the winding is stopped. Is applied to the outside, and as a result, the loosening of the winding progresses from the surface layer toward the inside.

At this time, the sheet is wrinkled, the corrugation phenomenon occurs, or the side surface of the winding is distorted. However, the sheet is a paper for printing such as art paper or coated paper. In some cases, it will be unusable. As described above, by loosening the surface layer of the winding, in a later step, that is, a winder device installed for the purpose of making a small winding, even a sheet cutter device used for making a plain paper, the winding If the device is mounted and operated as it is, the tension is fluctuated, the device cannot be operated, and the manufactured surface layer is removed.

[0006] Further, in the case of a paper type such as a carbonless paper or an information paper typified by a heat sensitive paper, which is colored by an external force, the front and back of the sheet are rubbed against each other when the surface layer of the winding is loosened to cause coloration. It cannot be used.

[0007]

SUMMARY OF THE INVENTION The present invention provides a rotary turret type winder capable of preventing the surface layer of the winding from being loosened by centrifugal force and continuously changing frames. ..

[0008]

DISCLOSURE OF THE INVENTION The present invention is characterized in that a roll having a function of pressing the winding is installed at the time of changing the winding frame on the rotating turret type rewinding machine. It is a winder.

[0009]

The present invention will be described in more detail with reference to the drawings. FIG. 1 shows an embodiment in which the auxiliary roll (1) according to the present invention is applied to a twin-screw turret type winder. Turret of twin-screw turret type winder used in this embodiment
In (2), winding shafts (3 and 4) for winding are wound to face each other, and these shafts are controlled by a sheet tension detecting device (not shown) to control the number of rotations of the motor and to rotate a predetermined sheet. It is possible to rotate in the direction of the arrow while maintaining tension.

The two auxiliary rolls forming the main part of the present invention are usually fixed at the positions shown in FIG. 1 and used as auxiliary rolls, but when the frame is replaced, the cylinder device which is the pressing mechanism (5 and 6) is used. The auxiliary roll is pressed against the winding (7) by being operated, and the winding is pressed immediately before the sheet is cut or after the sheet is cut. Regarding the auxiliary roll of the present invention,
Its use is explained in more detail in the context of the above examples.

At the time of normal winding, as shown in FIG. 1, the sheet (9) sent from the coating device (8) passes through each guide roll (10) and then to the lower surface of the press roll (11) and then to the bottom. Is wound around a winding shaft (4) fixed to the arm A (12). However, at the time of frame change, as shown in FIG. 2, the sheet passes through the guide rolls, the lower surface of the press roll, and then the take-up roll fixed to the arm B (13) moved to the rightmost position to change the frame. After coming into contact with the upper surface of the shaft (4), it passes through the auxiliary roll (1) and then the winding shaft (3) fixed to the arm A.
It is wound on the upper winding (7).

To change the frame, first, the winding shaft (4) fixed to the arm B is accelerated to the speed of the sheet, and when the speed is synchronized, the press roll is pressed against the winding shaft to cut the sheet ( It is completed by cutting it by 14) and winding it by the winding shaft fixed to the arm B. On the other hand, as shown in FIG. 3, the cylinder device (5) is operated to press the auxiliary roll, which is a feature of the present invention, against the winding on the arm A, immediately before or after cutting the sheet. It presses the winding.

The auxiliary roll is 0.2 kg / c.
When pressed in the range of m to 1.0 kg / cm, the state in which the winding is not loosened can be maintained, whereas when the auxiliary roll is pressed with a pressing pressure of 0.2 kg / cm or less, centrifugal force is increased. If it is pressed with a pressing pressure of 1.0 kg / cm or more, the art paper or the coated paper will be wrinkled or the information paper will be colored.

Further, the rotary turret type winder to which the auxiliary roll of the present invention can be applied is not limited to the biaxial turret type winder as described above, but a turret type having three or more axes can be used. Of course, it is also applicable to the above.

[0015]

According to the winding machine of the present invention, there is a problem that the quality as a product cannot be obtained due to wrinkles, rubbing, corrugation phenomenon and the like as in the conventional case, and a winder device and a cutter as a post-process. If it is directly applied to the processing process of the device etc., it will be very difficult to operate due to its looseness, and the surface layer will have to be removed, but generating a large amount of waste paper is a huge amount of work in the previous stage, In addition, the problem that enormous loss has occurred even when considering the passage of time, the use of energy, etc. can be solved by a relatively simple equipment modification.

In addition, paper types such as carbonless paper and heat-sensitive paper that are colored by an external force do not cause coloration,
Although it is possible to wind the film, when the auxiliary roll is driven by a motor or the like, the effect is particularly remarkable.

[Brief description of drawings]

FIG. 1 is an embodiment in which the auxiliary roll of the present invention is applied to a twin-screw turret type winder.

FIG. 2 is a diagram showing a state immediately before frame change.

FIG. 3 is a diagram showing a state after frame change.

[Explanation of symbols]

 (1) Auxiliary roll (2) Turret (3) Arm A winding shaft (4) Arm B winding shaft (5) Arm A pressing mechanism (6) Arm B pressing mechanism (7) Winding (8) ) Coater (9) Sheet (10) Each guide roll (11) Press roll (12) Arm A (13) Arm B (14) Cutting knife

Claims (2)

[Claims] 1. A rotary turret type winder equipped with a roll having a function of pressing the wind when changing the frame for winding on the rotary turret type rewinder. 2. The roll is 0.2 kg / cm to 1.0
The rotating turret type winder according to claim 1, wherein the rotating turret type winding machine presses with a linear pressure in the range of kg / cm.