JPH11309794A - Transfer article tensioning apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the tensioning apparatus for applying fine and uniform tension to the total width of a transfer article and responding to tension fluctuations during operation in a moment. SOLUTION: A spring plate 14 coming into contact with one surface 1a of a transfer article 1 to impart tension to the transfer article 1 is divided into a plurality of divided spring plates 14A in the direction crossing the direction of a moving route 2 and the group of these spring plates 14A is brought into contact with one surface 1a. The group of the divided spring plates 14A comes into contact with one surface 1a of the transfer article 1 moving on the moving route 2 elastically (under pressure) and tension is imparted to the total width of the transfer article 1 by the elastic repulsive force of the group of the divided spring plates 14A. Even if tension fluctuations are generated in the lateral direction of the transfer article 1, the divided spring plate 14A corresponding to a fluctuation place imparts tension while independently (individually) performs elastic adjustment by elastic repulsive force. The respective divided spring plates 14A respond to tension fluctuations during operation in a moment to correspond thereto.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for setting a base paper at an outlet portion of an automatic splicing device in a corrugated cardboard manufacturing facility, between a gluing machine and a backer device, a portion of a corrugated cardboard manufacturing device, and the like. The present invention relates to an apparatus for stretching a transferred object.

[0002]

2. Description of the Related Art Conventionally, as this type of apparatus, for example, a type shown in FIG. 8 has been adopted. That is, the tension roll 5 disposed between the pair of guide rolls 50, 51
2, the base paper 5 guided between the guide rolls 50 and 51
5, the tension is adjusted by moving the tension roll 52 in the thickness direction of the base paper 55.

[0003]

However, according to the conventional type described above, by applying one tension roll 52 to the entire width of the base paper 55, fine and uniform tension can be applied to the entire width of the base paper 55. In addition, there was a time lag in response to tension fluctuations during operation, and high-quality corrugated board could not be manufactured.

Accordingly, the invention according to claim 1 of the present invention is capable of applying a fine and uniform tension to the entire width of a transferred object such as a base paper and at the same time instantaneously responding to a change in tension during operation. The purpose of the present invention is to provide a tensioning device.

[0005]

In order to achieve the above-mentioned object, an apparatus for stretching a transferred object according to claim 1 of the present invention comprises:
Opposed to the moving path of the transferred object, a spring plate that abuts on one surface of the transferred object and applies tension to the transferred object is provided, and the spring plate is provided in a direction intersecting the direction of the moving path. It is divided into a plurality of parts, and the divided spring plate group is in contact with one surface of the transferred object.

Therefore, according to the first aspect of the present invention, when the transferred object is moving on the movement path, the divided spring plate group elastically abuts (presses) on one surface of the transferred object. The tension can be applied to the entire width of the transferred object by the elastic repulsive force of the divided spring plate group. At this time, even if the tension varies in the width direction of the transferred object, the split spring plate corresponding to the variation portion applies the tension while adjusting the elasticity solely (individually) by the elastic repulsive force. Will be maintained. In addition, each split spring plate responds (translates) instantaneously to tension fluctuations during operation.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below.
The transferred object will be described with reference to FIGS. 1 to 3 as a cardboard base paper.

[0008] A base paper tensioning apparatus 10 is provided so as to face the moving path 2 of the base paper 1. That is, one side 1a of the base paper 1
, A rotating shaft 11 in a direction intersecting the direction of the movement path 2 is provided.
Is rotatably supported on the apparatus main body 18 side.
A mounting plate (bracket) 13 is connected to the rotating shaft 11 from one location in the circumferential direction to the outside. The mounting plate 13 is brought into contact with one surface 1a of the base paper 1 so that the base paper 1
Is provided with a spring plate 14 for applying tension to the spring.

At this time, the spring plate 14 is divided into a plurality of portions in a direction intersecting the direction of the moving path 2, and each of the strip-shaped divided spring plates 14A has a base end provided with a fixing member (bolt / bolt). It is fixed to the mounting plate 13 via a nut or screw 15). The split spring plates 14A are configured such that an intermediate portion and a free end portion located on the downstream side of the movement path 2 with respect to the rotation shaft 11 are elastically brought into contact with one surface 1a of the base paper 1. ing.

A lever body 16 is connected to the rotary shaft 11. Between the free end of the lever body 16 and the apparatus main body 18, a group of divided spring plates 14A elastically abuts one surface 1a of the base paper 1. A pressure adjusting device 17 for adjusting the pressure at the time of contact is provided. As the pressure adjusting device 17, a cylinder type, a screw shaft type, or the like is adopted. The above 11-1
7, etc., constitute an example of the base paper stretching apparatus 10.

The operation of the above embodiment will be described below. Before or immediately after the start of operation, the rotating shaft 11 is rotated by the operation of the pressure adjusting device 17, and an intermediate portion of the split spring plate 14 </ b> A group fixed to the rotating shaft 11 via the mounting plate 13 or the like. The free end portion is elastically contacted (pressed) with one surface 1a of the base paper 1. At that time, the basic contact force (the operation amount of the pressure adjusting device 17) is
It is a preferable value based on the paper quality, paper thickness, moving speed, etc.

During operation, when the base paper 1 is moving on the moving path 2, the divided spring plates 14 A are arranged at an intermediate portion or a free end located on the downstream side of the moving path 2 with respect to the rotating shaft 11. The portion is elastically abutted (pressed) on one surface 1a of the base paper 1, and therefore, tension can be applied to the entire width of the base paper 1 by the elastic repulsive force of the divided spring plates 14A group. At that time, the tension in the width direction of the base paper 1 fluctuates,
For example, as shown by the imaginary line in FIG. 3, even if there is a slack A in the central portion, the split spring plate 14A corresponding to the fluctuating portion adjusts the elasticity independently (individually) by the elastic repulsion force. Tensioning will be maintained.

As a result, fine and uniform tension can always be applied to the entire width of the base paper 1, and the base paper 1 moves while maintaining a uniform tension without slackening. In addition, each split spring plate 14A
Responds instantaneously (moves directly) and responds. Thereby, various operations in the post-process can be suitably performed, so that high-quality cardboard can be manufactured.

The basic contact force of the split spring plate 14A can be adjusted by arbitrarily operating the pressure adjusting device 17 during operation. Next, the first use form of the present invention,
A description will be given based on FIG.

A guide roll 21 is provided at the exit of the automatic paper splicing apparatus 20, and further downstream is a guide roll
A heating roll 24 is provided in a state having the heating rolls 2 and 23. Then, the base paper stretching apparatus 10 includes guide rolls 21 and
The apparatus main body 2 is arranged such that the divided spring plates 14A resiliently contact one surface 1a of the base paper 1 moved between the two.
It is arranged on the 5 side.

According to the first mode of use, even if the base paper 1 fluctuates in tension during automatic splicing or the like,
The base paper 1 moved on the movement path 2 between the guide rolls 21 and 22 is maintained at a constant tension by the base paper stretching apparatus 10,
Thus, the heating operation by the heating roll 24 can be uniformly performed on the base paper 1.

Next, a second mode of use of the present invention will be described with reference to FIG. The gluing device 30 includes a gluing device 31.
Are arranged in two upper and lower stages, and a heating roll 32 is provided below.
Are arranged, and guide rolls 33 and 34 are arranged before and after the heating roll 32. Double gluing device 31
Respectively, apply glue to the top of the single-sided cardboard 4, and the heating roll 32 heats the liner paper (base paper) 5.

A single-sided cardboard 4 is provided downstream of the gluing machine 30.
A backer device 35 is provided for bonding the gap and bonding the liner paper 5 to the wavefront of the single-sided cardboard 4. The backer device 35 has a group of hot plates 36, and a plurality of guide rolls 37, 38, 39 for guiding the single-faced cardboard 4 and the liner paper 5 are arranged at the entrance. In the base paper stretching apparatus 10, the divided spring plates 14A are elastically applied to one surface 5a of the liner paper 5 which is moved between the guide roll 34 of the gluing machine 30 and the guide roll 39 of the backer 35. It is arranged to touch.

According to the second mode of use, even if the liner paper 5 fluctuates in tension at the portion of the heating roll 32 or the like, the liner paper 5 moved on the moving path 2 before entering the backer device 35. In this case, the tension is kept constant by the base paper tensioning device 10, so that the backer device 35 can prevent wrinkles, partial adhesion failure, warpage, and the like.

Next, a third mode of use of the present invention will be described with reference to FIG. The corrugated paperboard manufacturing apparatus 40 includes an upper roll 41 and a lower roll 42 for forming the core base paper 6 into corrugated paperboard 7, a heating roll 43 for heating the liner paper (base paper) 5, and a heated liner paper 5. A press roll 44 for applying the corrugated paperboard 7 on the lower roll 42, and a gluing device 4 for applying glue to the top of the corrugated paperboard 7
5 and a guide roll 4 disposed upstream of the upper roll 41
6 and a guide roll 4 disposed upstream of the heating roll 43
7 and the like.

A base paper stretching apparatus 10 is disposed upstream of a guide roll 46 for guiding the core base paper 6, and the base paper stretching apparatus 10 is moved on the movement path 2 to the guide roll 46 side. The split spring plates 14A are configured to elastically abut on one surface 6a of the core base paper 6. A base paper tensioning device 10 is disposed upstream of a guide roll 47 that guides the liner paper 5. Against the split spring plate 14
The A group is configured to elastically contact.

According to the third mode of use, the tension of the core base paper 6 and the liner paper 5 is kept constant by the base paper stretching devices 10 provided at the base paper inlets in the corrugated board manufacturing process, thereby improving quality. Can be molded.

Next, another embodiment of the present invention will be described with reference to FIG. That is, the spring plate 14 has a slit (notch) 19 extending from its free end to an intermediate portion.
Are formed at a plurality of locations in a direction intersecting with the direction of the movement path 2.
A strip-shaped split spring plate 14A divided into a plurality of pieces in a direction intersecting with the direction of the movement path 2 is formed.

According to this alternative embodiment, the spring plate 14
Since the base end portion 14B has a continuous single-piece shape, it is easy to handle, and the fixing to the mounting plate 13 via the fixing member 15 can be easily performed with a small number of fixing members 15.

In the above embodiment, the pressure adjusting device 1
Although the base paper tensioning device 10 having the numeral 7 is shown, this may be of a type in which a rotating structure such as the rotating shaft 11 is not provided and the spring plate 14 is fixed to the device main body 18 side.

In the embodiment described above, the base paper stretching apparatus 1
As the usage form of No. 0, an automatic paper splicing device portion, a bucker device portion, and a corrugated cardboard manufacturing device portion are shown, but these are also provided in other portions of the corrugated cardboard manufacturing equipment where a tension adjustment is required. Obtainable and easy to install.

In the above-described embodiment, the transferred material is the base paper 1 for corrugated cardboard, and the stretching device is described as the base paper stretching device 10. However, this is a stretching device in which the transferred material is cloth, resin film, paper, or the like. There may be.

[0028]

According to the first aspect of the present invention, when the transferred object is moving on the moving path, the divided spring plate group elastically abuts (presses) on one surface of the transferred object. Therefore, tension can be applied to the entire width of the transferred object by the elastic repulsive force of the divided spring plate group. At this time, even if the tension varies in the width direction of the transferred object, the split spring plate corresponding to the variation portion applies the tension while adjusting the elasticity individually (individually) by the elastic repulsive force. Pressure contact) can be maintained. As a result, fine and uniform tension can always be applied to the entire width of the transferred object, and the transferred object can move while maintaining a uniform tension without loosening. In addition, each split spring plate responds (directly moves) instantaneously to the fluctuation of the tension during the operation, so that various operations in the post-process can be suitably performed.

[Brief description of the drawings]

FIG. 1 shows an example of an embodiment of the present invention and is a side view of an apparatus for stretching a transferred object.

FIG. 2 is a rear view of the transfer object stretching apparatus.

FIG. 3 is a perspective view of a main part of the transfer object stretching device as viewed from below.

FIG. 4 is a side view of an automatic paper splicing device showing a first use mode of the transported article stretching apparatus of the present invention.

FIG. 5 is a side view of a backer device, showing a second mode of use in the apparatus for stretching a transferred object according to the present invention.

FIG. 6 is a side view of a corrugated cardboard manufacturing apparatus, showing a third mode of use of the transferred object stretching apparatus of the present invention.

FIG. 7 shows another embodiment of the present invention, and is a perspective view of a main part of the apparatus for tensioning a transferred object as viewed from below.

FIG. 8 is a schematic side view showing a conventional example and employing a tension roll.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base paper (transferred material) 1a One side of base paper 2 Movement path 4 Single-sided corrugated cardboard 5 Liner paper (base paper) 5a One side of liner paper 6 Core base paper 6a One side of core base paper 10 Base paper tensioning device 11 Rotating shaft 13 Mounting plate 14 Spring plate 14A Split spring plate 14B Base end portion 17 Pressure adjusting device 18 Device main body 19 Slit 20 Automatic paper splicing device 24 Heating roll 30 Gluing machine 32 Heating roll 35 Backer device 40 Corrugated cardboard manufacturing device 41 Upper roll 42 Lower roll 43 Heating roll

Claims (1)

[Claims] A spring plate is provided opposite to a moving path of a transferred object and abuts against one surface of the transferred object to apply tension to the transferred object. Wherein the divided spring plate group is abutted against one surface of the transferred object.