JPH0561182B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention is an apparatus for winding up a band-shaped fiber mat such as glass wool mat, which is often used as a sound absorbing and heat insulating material, into a roll shape without using a core material. Specifically, the conveying surfaces are positioned so as to surround the winding space, and the winding is carried out from one end in the longitudinal direction while changing the position of each of the conveying surfaces outward in the radial direction of a circle inscribed in these conveying surfaces. This invention relates to a fiber mat roll-up device that is provided with a plurality of roll-up conveyors that wind up the fiber mat into a roll by sequentially feeding the fiber mat in the form of a belt supplied into the space along the circumference of the inscribed circle. .

[Conventional technology]

In such a conventional fiber mat roll-up device, as the fiber mat is fed, the conveying surface is repositioned radially outward so as to increase the circumference inscribed in the conveying surface, that is, the diameter of the winding space. , a mechanism was provided to change the position of the conveying surface so that the repulsive force of the rolled fiber mat acting on the conveying surface became a set value (for example, Japanese Patent Publication No. 48-44115
Publication No.).

[Problem that the invention seeks to solve]

However, when using the conventional means, the repulsion force differs depending on the density of the fiber mat, so for example, if the density of one type of fiber mat differs from another type, Even if the thickness of both types of fiber mats is the same,
There is a drawback in that it is not possible to wind up both types of fiber mats of a set length to a predetermined diameter so that they have the same diameter.

Moreover, fiber mats generally do not have a constant density over their entire length, and there are variations in density.
This method has the drawback that the thickness of the rolled up fiber mat varies, and as a result, even when winding up the same type of fiber mat, it is difficult to accurately wind up the fiber mat of a set length into a predetermined shape. Ta.

The present invention has been made in consideration of such conventional drawbacks, and its purpose is to provide fiber mats of various lengths with the same thickness but different densities, and of the same type with inconsistent densities over the entire length. The object of the present invention is to enable a fiber mat to be accurately wound to a predetermined diameter.

[Means for solving problems]

The characteristic structure of the fiber mat roll-up apparatus according to the present invention, which was taken to achieve the above object, is that at least three roll-up conveyors are installed;
Each of the roll-up conveyors is mounted so that one end thereof is a pivot point and the other end is swingable, and as the fiber mat is supplied, the area of the inscribed circle is constant for the unit length of the fiber mat. A mechanism is provided for changing the position of the conveying surface outward in the radial direction so that the conveying surface increases in proportion, and the effects thereof are as follows.

[Effect]

In other words, according to the above configuration, since at least three roll-up conveyors are installed, it is easier to determine the center position of the fiber mat in the wound state compared to, for example, a case where two roll-up conveyors are installed. , the winding can be controlled stably. In addition, each conveyor is attached with one end as a pivot point and the other end swingable, so that when the mat is started to be wound up with the respective ends of the conveyor in contact with each other, the diameter of the mat becomes large. Accordingly, the conveyor swings, and the wound fiber mat comes into contact with the middle part of the conveyor, and as a result, the conveyor increases the contact area with the wound fiber mat as much as possible. The conveyor is capable of taking up the fiber mat in a state in which the fiber mat is rolled up, and fully exhibits the excellent function of the conveyor in that it can wind up the fiber mat more efficiently while preventing slips compared to, for example, winding the fiber mat in a roller or the like. be able to. In this way, according to the above configuration, the center position of the fiber mat can be easily determined and the excellent functions of the roll-up conveyor can be fully demonstrated, so that the winding control of the fiber mat can be stably controlled. It can be carried out.

Then, by the above-mentioned mechanism, for example, the thickness of the fiber mat at the time of winding is made constant, and the fiber mat is adjusted such that the area of the inscribed circle increases at a constant rate with respect to the unit length of the fiber mat. Even when winding up various types of fiber mats with the same thickness but different densities, or when winding up fiber mats of the same type whose density is not constant over the entire length, these fiber mats can be rolled up. If the lengths of the fiber mats are the same, the fiber mats can be rolled up to the same diameter.

〔Effect of the invention〕

Therefore, it has become possible to provide a fiber mat roll-up device that can accurately roll up each fiber mat of a set length to a predetermined diameter, regardless of the density of the fiber mat.

〔Example〕

Next, embodiments of the present invention will be described based on the drawings.

This is a device for winding up band-shaped fiber mats a such as glass wool mats into a roll shape, and the conveying surfaces 1a thereof are positioned along each side of an equilateral triangle, and each of the conveying surfaces 1a While changing the position radially outward of the circle inscribed therein, the fiber mat A fed from one longitudinal end side via the conveyor 2 into the winding space A surrounded by the conveying surface 1a is moved into the inside. Three roll-up conveyors 1 are provided to wind up the fiber mat a into rolls by sequentially feeding the fiber mat a along the circumference of a tangent circle, and as the fiber mat a is supplied, the conveying surface 1a is rotated along the belt conveyor 1. A mechanism 3 for changing the position outward in the radial direction is provided.

The belt conveyor 1 has a fulcrum R on the conveyance start end side.
The belt conveyor 1 connected to the supply conveyor 2 is moved to the downstream side of the conveyor as shown by the two-dot chain line in FIG. It is configured to be swingable to a position radially outward from the winding end position so as to form an opening for dropping and discharging the rolled fiber mat a between it and the continuous belt conveyor 1.

The conveyance surface position changing mechanism 3 includes a cylinder 3A that swings each belt conveyor 1 around a fulcrum R, and the conveyance surface position changing mechanism 3 is provided with a cylinder 3A that swings each belt conveyor 1 around a supporting point R. In order to increase the diameter of the inscribed circle, the conveying surface 1a is moved radially outward as the fiber mat a is supplied. In other words, the area S of the inscribed circle is S = ρ x T, where v is the supply speed of fiber mat a into winding space A, T is the thickness of fiber mat a, and ρ is the compression residual ratio of fiber mat a. The position of the conveyance surface 1a is changed so that ×∫vdt. The above-mentioned supply speed is a value obtained by correcting the speed of the belt conveyor 1 by the slip ratio between the belt conveyor 1 and the fiber mat a, and the above-mentioned ratio is usually 1.0±0.1.

According to the above configuration, regardless of the density of the fiber mat A, the thickness of the fiber mat A during winding is made constant and the fiber mat A is rolled up, so when winding up various fiber mats A having different densities, If the lengths of the fiber mats a are the same, the fiber mats a can be rolled up to have the same diameter.

The present invention may be implemented as follows.

Four or more roll-up conveyors 1 are provided so that their conveying surfaces 1a are located along each side of a regular polygon such as a regular square.

[Brief explanation of drawings]

The drawings show an embodiment of the fiber mat roll-up device according to the present invention, with FIG. 1 being a schematic configuration diagram showing an initial state of winding, and FIG. 2 being a schematic diagram showing a state close to completion of winding. 1a... Conveyance surface, A... Winding space, a... Fiber mat, 1... Roll-up conveyor, 3...
...Conveyance surface position change mechanism.

Claims (1)

[Claims] 1 Their conveyance surface 1 surrounds the hoisting space A.
a, and while changing the position of each conveyance surface 1a outward in the radial direction of a circle inscribed in these conveyance surfaces 1a, a belt-like material is supplied into the winding space A from one longitudinal end side of the conveyance surface 1a. The fiber mat roll-up device is provided with a plurality of roll-up conveyors 1 that wind up the fiber mats a into rolls by sequentially feeding the fiber mats a along the circumference of the inscribed circle, At least three roll-up conveyors 1 are installed, and one end of each of the roll-up conveyors 1 is used as a pivot point, and the other end is attached so as to be swingable. A roll-up device for a fiber mat, comprising a mechanism 3 for changing the position of the conveying surface 1a radially outward so that the area of the fiber mat increases at a constant rate with respect to the unit length of the fiber mat a.