JPH05261432A - Device for winding sheet and bar material with high rigidity - Google Patents

Abstract

PURPOSE:To prevent the deformation due to the springing up of a winding material X by the action of a bending moment, and to enable the winding on a winding drum without loosening by imparting winding peculiarity to the material X. CONSTITUTION:A holding roll moving unit 1 is provided in the forward and upper position of the winding drum 17. On this unit 1, arms 3, 3 respectively rocking by cylinders 7, 7 are provided. Between the ends of these arms 3, 3, the holding roll 5 is provided to be freely rotatable. While the winding material X is added with tension on the winding drum 17 and is wound, the holding roll 5 is opposed to the springing-up direction of the part of the winding material X, and the bending moment is imparted between the roll 5 and the winding drum 17.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improved structure of a winding device for winding a plate or bar having high rigidity on a winding drum without loosening.

[0002]

2. Description of the Related Art Conventionally, when a highly rigid plate material or bar material is wound around a winding drum in a state where the slack is small, generally, a device that depends only on the winding force of the winding drum has been used. In the case of using such a device, a tension that gives a tensile stress of 0.1 to 0.2 times the yield point (proof stress) of the wound material is required.

Further, regarding this type of winding device, a plurality of rolls are arranged in front of the winding drum in Japanese Patent Publication No. 45210 of 1981 and Japanese Patent Publication No. 95417 of 1981, and by these rolls, A method is disclosed in which a winding material is sequentially bent, and a winding curl is added to wind the winding material on a winding drum. Further, Japanese Patent Publication No. 9717 of 1987 discloses a roller that exerts a pressing action on the winding material. A winding device such as a thin plate provided above is disclosed.

[0004]

In the case of the above-mentioned conventional general apparatus, it is necessary to apply a very large tension to the highly rigid winding material, and therefore, a large winding power and a corresponding winding force are required. It has the drawback of being a correspondingly large device.

In the former device disclosed above, the relationship between the bending radius of the plurality of rolls and the radius of the winding drum, and the winding of the winding drum from the position bent by the plurality of rolls. A shape that takes into consideration the buckling of the winding material up to the take-up point, etc., and this change must be taken into consideration due to changes due to the winding thickness on the take-up drum. Control is complicated. For this reason, there are drawbacks in that it is technically difficult in terms of device configuration, and that it is equivalent to the case of the above-described conventional general device or requires extra power than this device.

Further, in the case of the latter device disclosed above, since the roll is constituted so that the pressing force directly acts on the winding material on the winding drum, the winding material is a high rigidity material. In some cases, it cannot be applied because the reaction force against the jump is too large.

Therefore, according to the present invention, since the winding is performed on the winding drum without looseness, the tension applied to the high-rigidity winding material is small, and the winding power is small. An object of the present invention is to provide a winding device for a highly rigid plate material and bar material that can be downsized.

[0008]

In order to achieve the above-mentioned object, the present invention has a high-rigidity plate and rod winding device configured as follows. That is, in a device for winding a high-rigidity plate material or bar material on a winding drum in a coil shape, at a position in front of the winding drum, facing the direction in which the winding material is being wound up, It is characterized by being equipped with a pressing roll so that a bending moment can be applied between the winding drum and the winding drum.

In the present invention, a plate material or a bar material made of various materials such as a steel material and an aluminum material can be taken up as a winding object as long as it has a high rigidity that causes a jumping up during winding.

The pressing force of the pressing roll can be obtained by a general means such as a hydraulic cylinder.
In this case, as will be described later, it may be configured to be connected to a swinging arm.

Further, the pressing position of the press roll with respect to the winding material differs depending on the material shape of the winding material, the type of the forming material, and the like. This is because the magnitude of the bending moment required for winding differs. Therefore, in the present invention, paying attention to the above points, the pressing roll can be configured to be movable along the traveling direction of the winding material.

[0012]

In the present invention, the following actions occur. First, the presser roll, prior to the winding of the corresponding winding material portion,
Opposing the pushing force in the direction of the bounce,
A bending moment is generated between the winding drum and the winding drum. This bending moment prevents the bouncing deformation of the winding material portion and at the same time causes the winding material to curl.

In this way, the winding material in which the flip-up deformation is prevented and the winding curl is sequentially added is wound on the winding drum with almost no looseness by a relatively small winding power.

When the pressing roll is movably provided as described above, the pressing force generated on the pressing roll is measured by the load cell, and the working position of the pressing roll is set in the advancing direction of the winding material according to the measured value. It is possible to add a bending moment to the winding material as required according to changes in hardness, plate thickness, diameter, etc. of the winding material.

[0015]

EXAMPLE A schematic structure of a winding device in an example according to the present invention is shown in FIGS. The illustrated winding device includes a pressing roll moving unit 1 which is arranged at a position on the upper front side of the winding drum 17.

Incidentally, X is a winding material being wound on the winding drum 17, and the winding drum X is located immediately before the winding.
A constant tension is applied by the winding power of the rotary drive shaft 18 of 17. The direction of this tension is indicated by a.

The presser roll moving unit 1 is provided with a carriage 2, on which the arms 3, 3 are provided with bearings 4, at the symmetrical positions near the rear surface on the lower surface of the carriage 2 and near the side surfaces thereof.
It is provided so as to be able to freely swing along the traveling direction of the winding material X via each of the four. The press roll 5 is rotatably supported on a support shaft 6 provided between the extreme ends of the arms 3 and 3.

On the carriage 2, hydraulic cylinders 7, 7 are rotatably supported by bearings 8, 8 by trunnions 9 in the same plane as the corresponding arms 3. Also, each hydraulic cylinder 7, 7 has its rear end extending into a corresponding gap 10, 10 on the carriage 2, and its front end is arranged such that its piston shaft 11 extends downward with respect to the carriage 2. It is set up. Each of these cylinders 7, 7
The end portion of the piston shaft 11 is swingably connected to the bearing 13 provided on the corresponding arm 3 via the load cell 12.

Further, two sets of a pair of moving unit rails 15, 15 'and 16, 16' having two upper and lower fixed intervals are provided.
It is arranged at an upper position in the traveling direction of the winding material X, and its extreme end portion is extended to the upper portion of the winding drum 17.

The trolley 2 is a rail of these units for moving units.
Between wheels 15 and 15 'and 16 and 16', they are supported via wheels 14 provided corresponding to these rails.
As a result, the press roll moving unit 1 can move along the moving direction of the winding material X on the moving unit rails 15, 15 ', 16, 16'.

The functional operation of the winding device configured as described above is as follows. First, with respect to the winding material X whose winding on the winding drum 17 is started, tension in the a direction acts between the winding material X and the winding drum 17 on the portion before winding. However, due to the high rigidity of the winding material X, the winding material X portion tends to jump up in a direction perpendicular to the tension direction a in the form indicated by X ′.

In response to such a tendency of bouncing up, the hydraulic cylinders 7 are driven to swing the arms 3 and 3 in the direction b so that the presser roll 5 is brought into contact with the corresponding winding material X portion, and the pushing force is pushed. Pressure can be applied in the c direction.

By this pressing action in the c direction, a bending moment between the winding material X and the winding drum 17 is applied. This bending moment action holds up the pass line of the winding material X portion in a straight line by suppressing the jumping up, and at the same time, attaches a curl to the winding material X portion. As a result, the winding material X can be wound on the winding drum 17 with almost no looseness.

Further, with respect to the thickening of the winding on the winding drum 17 due to the progress of winding, the cylinder 7 swings based on the support structure of the trunnion 9 in accordance with the pressure received by the pressing roll 5, and This can be dealt with by appropriately contracting the piston shaft 11 and swinging and displacing the arms 3, 3.

At this time, the pressing force on the winding material X generated on the pressing roll 5 is measured by the load cell 12, and the pressing roll moving unit 1 is moved forward and backward so that the pressing force generated on the pressing roll 5 becomes a target value. You can adjust the position. This mechanism enables efficient operation of the winding device and, in particular, makes it possible to prevent the occurrence of pressing scratches by the pressing roll.

[0026]

Since the present invention is constructed as described above, the following effects are exhibited. First, since a pressing roll is provided so as to be able to apply a bending moment between the winding drum and the winding drum so as to face the direction in which the winding material is being wound up, tension on the winding material is conventionally required. When the size is reduced to about 1/3 to 1/4 and the winding power is also reduced, it is possible to wind the material with almost no looseness. This makes it possible to reduce the size and labor of the device.

Further, since the bending moment with respect to the winding material is based on the pressing force of the pressing roll, it is possible to easily follow the thickening of the material on the winding drum by displacing the acting position of the pressing roll. . From this point, the device configuration can be simplified.

Further, when the above-mentioned pressing roll is provided so as to be movable, it becomes possible to easily adjust the position of the pressing roll and the magnitude of the pressing force thereof, which enables efficient operation of the apparatus. In addition, it contributes to further downsizing of the device and labor saving, it also prevents the occurrence of obstacles such as pressurization scratches, and it is also possible to respond quickly to various types of materials and shapes of winding material. Is.

[Brief description of drawings]

FIG. 1 is a partial vertical cross-sectional front view of a winding device according to an embodiment.

FIG. 2 is a right side view of the partial section.

[Explanation of symbols]

 1 Presser roll moving unit 5 Presser roll 7 Cylinder 17 Winding drum X Winding material

Claims (2)

[Claims] 1. An apparatus for coiling a highly rigid plate or bar on a winding drum, at a position in front of the winding drum, in a direction in which the winding material is being wound up. A winding device for high-rigidity plate and bar material, which is equipped with a pressing roll so that a bending moment can be applied between the winding drum and the winding drum facing each other. 2. The high-rigidity plate / bar winding device according to claim 1, wherein the pressing roll is configured to be movable along the direction in which the winding material advances.