JPH1143242A - Film winder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a film winder in which a protective film can removed from a core tube without using a dangerous thing such as a knife and which is excellent in durability of the core tube itself more than an air bag. SOLUTION: A film winder is composed of a rotary body 7 to receive rotational driving from a driving source, a nut shaft 1 which is connected to the rotary body 7 and has a screw groove on the tip, a shaft 2 having a collar which is screw-fitted to the screw groove of the nut shaft 1 and can optionally select a slide or a fixation, a slide material 3 to slide by interlocking with a movement of the shaft 2 having a collar at sliding time of the shaft 2 having a collar and a bar-shaped material 5 to wind a film, and the slide material 3 and the bar-shaped material 5 are connected to each other by a connecting member 4 to vary a distance between the slide material 3 and the bar-shaped material 5 by sliding the slide material 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a film winding device for winding a protective film used for protecting a molding material or a molded product.

[0002]

2. Description of the Related Art A sheet molding compound used as a plastic molding material is stripped of a protective film immediately before molding from a raw material state, and is put into a molding machine. The protective film is wound around a core tube such as a paper tube or an aluminum tube and is treated as industrial waste. In order to reuse the core tube, only the protective film is cut with a knife.

[0003] Further, as a core tube around which a protective film is wound, a tubular airbag is wound up in an inflated state, and the airbag is deflated when the protective film is removed.

[0004]

However, cutting the protective film using a knife may inadvertently damage the core tube, and if the cutting operation is performed in an unstable posture. , They can hurt their own fingers. In order to perform the operation in a stable position, remove the core tube from the device with the protective film wound around the core tube, and when performing cutting work, the weight of the core film is added to the weight of the protective film. Forcing severe removal work.

On the other hand, in the case of using a tube-type airbag, the worker can work comfortably because it is not necessary to cut the protective film and only the protective film can be removed. The tube-type airbag, which is a core tube, is expensive in material, and the airbag itself repeats inflation and contraction, and thus has a problem in durability.

The present invention has been made in view of the above-mentioned problems, and it is possible to remove a protective film from a core tube without using a dangerous substance such as a knife, and the durability of the core tube itself is reduced by air. It is intended to provide a film winding device that is superior to a bag.

[0007]

As shown in FIG. 1, the present invention relates to a rotating member 7 which is rotationally driven by a driving source, and a nut shaft 1 connected to the rotating member 7 and having a thread groove at a tip.
And a flanged shaft 2 which is screwed into a thread groove of the nut shaft 1 and which can be arbitrarily selected to slide or fixed, and a slide which slides in conjunction with the movement of the flanged shaft 2 when the flanged shaft 2 slides A connection comprising a member 3 and a bar 5 for winding a film, wherein the slide member 3 and the bar 5 are slidable so that the distance between the slide member 3 and the bar 5 can be changed. It is characterized by being connected by the member 4.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The nut shaft 1 and the flanged shaft 2 used in the present invention are made of metal. Among them, cast iron, carbon steel and the like are preferably used in terms of cost. The nut shaft 1 and the flanged shaft 2 are threadedly connected via a thread groove. After being screwed to a predetermined position, the nut shaft 1 and the flanged shaft 2 are fixed by a nut or the like so as not to rotate and slide. Conversely, when sliding, the nuts and the like are loosened and the flanged shaft 2 is rotated to enable sliding.

The slide member 3 used in the present invention is connected and fixed to the flanged shaft 2, and slides left and right in conjunction with the sliding of the flanged shaft 2. Furthermore, slide material 3
A mounting hole for connecting the plurality of connecting members 4 is provided in the peripheral wall of the first embodiment.

The connection member 4 used in the present invention is not particularly limited as long as the distance between the slide member 3 and the rod 5 can be changed by sliding the slide member 3. Basically, the distance between the slide member 3 and the bar member 5 is changed by sliding the slide member 3 right and left and changing the connection angle between the bar member 5 and the connecting member 4. , Connecting member 4
May be a simple metal rod. However, in order to reduce the size of the entire apparatus, it is preferable to use the connecting member 4 made of an L-shaped metal plate, which can change the distance greatly even with a small slide amount.

The rod-shaped material 5 used in the present invention is not particularly limited as long as it can wind the protective film, but is preferably made of metal from the viewpoint of durability. In addition, the number of the protective films is appropriately selected, but it is preferable to attach five or more protective films in order to wind the protective film into a cylindrical shape. At least one rod-shaped member 5 is connected to the slide member 3 via the above-described connecting member. However, since only one portion lacks stability, another one is connected to the nut shaft 1 via the connecting member 4. I do.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view of a film winding device according to an embodiment of the present invention, in which a nut shaft 1 is connected via a bearing 6 to a rotating body 7 connected to a driving source such as a motor (not shown). ing.

The other end of the nut shaft 1 which is not connected to the rotating body 7 is provided with a female thread, and the female thread is provided with a flanged shaft 2 having a male thread.
Screw. After screwing the flanged shaft 2 to an arbitrary position, the flanged shaft 2 is fixed by a nut (not shown) so as not to slide.

The flanged shaft 2 is connected and fixed to a slide member 3 around which a connection member 4 which is an L-shaped metal plate is provided. A metal rod 5 is connected to the connection member 4. . The metal rod 5 is connected to the nut shaft 1 by a similar connecting member 4 other than the connecting member 4 provided around the slide member.

The operation of the film winding device according to the present invention will be described. After confirming that the flanged shaft 2 is fixed so as not to slide by the nut, the rotating body 7 is rotated by the motor, and FIG. As shown, the bar 5
Wrap a protective film around. After winding the predetermined amount of the protective film, the nut fixing the flanged shaft 2 is loosened, and the flanged shaft 2 is rotated to slide the flanged shaft 2 with respect to the nut shaft 1. Since the slide member 3 slides in conjunction with the slide of the flanged shaft 2, the connection angle between the connection fitting 4 and the bar 5 is changed, and the distance between the slide member 3 and the bar 5 is reduced.

After the distance between the slide member 3 and the bar 5 is reduced, only the protective film can be easily removed from the film winding device without using a knife or the like.

[0017]

According to the present invention, it is possible to remove only the protective film from the film winding device without using a knife or the like, and the mechanism is such that the metal rod is movable via the connecting member. As compared with an airbag which repeats inflation and deflation, it is possible to provide a highly durable device with a low cost.

[Brief description of the drawings]

FIG. 1 is a sectional view of a film winding device showing an embodiment of the present invention.

FIG. 2 is a partial perspective view of a film winding device showing an embodiment of the present invention.

[Explanation of symbols]

1. Nut shaft 2. 2. Shaft with flange Slide material 4. Connecting member 5. Rod material 6. Bearing 7. Rotating body

Claims (2)

[Claims] A rotating body that receives rotational driving from a driving source;
A nut shaft connected to the rotating body and having a thread groove at a tip, a flanged shaft which is screwed into the thread groove of the nut shaft, and which can select sliding or fixing arbitrarily; and a flange when the flanged shaft slides. A slide member that slides in conjunction with the movement of the shaft, and a rod-shaped member that winds a film. The distance between the slide member and the rod-shaped member is changed by sliding the slide member and the rod-shaped member. A film winding device, wherein the film winding device is connected by a connecting member that enables the film winding. 2. The film winding device according to claim 1, wherein the connecting member is a substantially L-shaped metal plate.