JPH0738264Y2 - Paper turning device - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a web direction changing device for changing the transport direction of a web (web) mainly used in a web rotary printing press.

[Conventional technology]

In recent years, for large-scale printed materials (various printed materials from weekly / monthly magazine gravure printing, newspaper printing to leaflet advertisements at department stores, mass retailers, etc.), web-fed rotary printing improves printing speed and mass printing. Is possible.

In order to set the roll paper on the rotary printing machine, when setting it at the preparation position of the paper feed unit, the roll paper was transported by placing it on a forklift or by rolling it directly on the floor surface by the operator. .

Since the former means uses mechanical power, it requires almost no human power, and if a correct driving operation is carried out, it is possible to prevent the danger to the operator, the loss of labor, and the occurrence of a backache accident that adversely affects the human body. On the other hand, it is necessary to secure a sufficient working area for traveling and moving the forklift, and moreover, a skilled worker for driving work is always required.

Therefore, in a narrow place or a passage with many bends, the paper roll has to be rolled and carried, and it has been difficult to change the direction easily in a narrow place.

Therefore, it is the current situation that guide rods have been used since ancient times.

The guide rod may be made of rubber, leather, cloth, metal or the like as a material, but in most cases, a rubber rod is used, and synthetic rubber such as neoprene, thiochol, nitrile rubber or the like is molded into a rod shape.

As shown in FIG. 8, the method of use is to set the guide rod R on the floor near the web W at a position near the center of the web W, roll the web further in that direction, and place the web W on the web W. The current situation is to change the direction to the desired direction while maintaining the balance.

[Problems to be solved by the device]

However, even if the protective paper and the circular side plate (header) are removed from the paper W, most of them have a weight of up to 1 ton, so even if the guide rod R is used, it is easy to change the direction as desired. Rather, especially when the center of gravity is biased to the left or right, it is forced to correct the delicate position of the center of gravity such as lowering it from the guide rod and repeating the work again, and as a result, low back pain caused by the burden on the operator, It has been pointed out that there are problems with danger, such as the fact that the degree of fatigue is remarkable and that accidents such as injury to the limbs due to unexpected paper rolls occur, and there is a strong demand for their solution.

Therefore, as a solution that has been proposed so far,
No. 53-49766 (inversion device) and No. 60-12528 (90 ° direction change device).

The former is a device for reversing an object to be reversed such as heavy weight base paper, but it is a large-scale device that requires a reversing disk that can be pushed up freely using a hydraulic mechanism, so naturally the cost required is also high. And, in addition to the complexity of the mechanism,
Since it is fixedly installed in a specific place, it can be used flexibly according to the situation, so to speak, it is not a turning device.

Further, the latter is the first and the second provided with the respective conveyor belts.
Since it requires a mechanism such as a table and a rotating disc mechanism consisting of upper and lower discs, and is a device limited to 90 ° direction changes, it is not suitable as a web-turning device for rotary printing presses. is there.

The present invention was devised to solve the above-mentioned problems of the prior art, and maintains the left-right balance like a conventional guide rod, and does not require special skill or labor for it to move in a desired direction. It can be easily rotated.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, the winding paper direction changing device of claim 1 according to the present invention is a disk-shaped conversion main body made of a single plate made of iron material, and is one region when divided into two close to the center. The outer peripheral edge of the semicircular portion having the lower surface occupying a flat surface as the introduction end edge portion, and the semicircular portion occupying the other area having the curved lower surface has an outer peripheral edge facing the introduction end edge portion as appropriate. And a pair of stoppers are provided so as to be recessed inward with a space therebetween.

Further, in the invention of claim 2, instead of the pair of stoppers, a stopper is provided in the vicinity of the facing edge of the introduction end edge portion so as to be raised in a single ridge shape.

Further, in the paper web redirection device of claim 3, a concentric circular groove portion provided on each of the joint surfaces of the conversion main body and the lower surface member, which is a disk-shaped disc made of an iron material, is provided with a coating agent having a sliding property. By embedding the applied O-ring,
Introducing an outer peripheral edge of a semi-circular portion that occupies one area of the rotatable upper surface member divided into two parts with respect to the lower surface member that is placed or fixed on a base such as a floor The stopper is provided in the form of a ridge in the vicinity of the opposing edge of the semicircular portion that occupies the end edge portion and occupies the other area facing the introduction end edge portion.

According to a fourth aspect of the invention, in place of the O-ring in the paper web direction changing device of the third aspect, a shaft portion is provided at the center of the joint surface between the upper surface member and the lower surface member of the conversion main body, and is used as a base on the floor surface or the like. The upper surface member is rotatable with respect to the lower surface member that is placed or fixed.

[Action]

The present invention puts the center part of the paper roll on the conversion main body and uses the sliding property with the grounding ground or the peculiar slidability imparted by the material of the conversion main body itself to convert the paper in the desired direction and then the operator winds the paper web. By applying a pressing operation to the peripheral body surface, the paper roll is conveyed to the rotary press paper feed section.

〔Example〕

 Examples will be described with reference to the drawings.

First Embodiment: This embodiment is shown in FIG. 1 and is a case of a paper web direction changing device formed on a single disc.

F is a disk-shaped conversion body, and is shaped as a single disk by an iron material such as stainless steel that is highly rigid and resistant to distortion.

The conversion body F has a plate-like shape as shown in the drawing, that is, as a common example, it has a shape similar to a flat and shallow platter or a wok, and the line A-A 'shown in FIG. It shows a position when it is divided into two close to the center of F, and 1 is an introduction edge portion, which is an outer peripheral edge of a semicircular portion whose lower surface occupying one area of the above-mentioned two divisions has a flat surface. is there. The line BB ′ in FIG. 3A is interposed between the line AA ′ and the outer peripheral edge of the semicircular portion that occupies the other area where the lower surface facing the introduction edge 1 is curved. Indicates the position. The line CC 'in FIG. 1A shows the position of the pair of stoppers 2 which are recessed inward and raised on the outer peripheral edge facing the introduction end edge portion 1 with an appropriate gap. A-A '
The cross-sectional shapes of the line, BB ′ line and CC ′ line are the first
This is as shown in Figures (c) to (e).

FIG. 1 (b) is a side view of FIG. 1 (a).

As can be understood from the above figures, the first embodiment is based on the base G
The surface (floor surface) is preferably used in a place having a smooth surface suitable for conversion of an iron plate or the like.

The lower surface of the conversion main body F has a flat surface from the introduction edge portion 1 to the peripheral portion indicated by the line AA ′ in order to easily push up and load the paper W to be described later.

Reference numeral 2 denotes a stopper that is bulged by pushing both sides of the introduction end edge portion 1 and the opposite edge.

Therefore, in the case of the conversion body F of the present embodiment, the portion where the lower surface of the conversion body F contacts the surface of the base G has a curved surface, which is near the line BB ', that is, a pan bottom shape.

2 (a) and (b) are modified examples of FIG.
FIG. 2 (a) is an explanatory view of a main part, and FIG. 2 (b) is a plan view.

The difference between this modification and FIG. 1 is that, in particular regarding the stopper 2, in the vicinity of the edge facing the introduction end edge portion 1, AA ′.
The ridge is parallel to the line and the line BB 'and is raised in the shape of a single ridge.

In the drawing, 8 indicates a hanging hole.

In the practice of the present invention, the conversion body F is shown as a single disk,
The shape is not limited to the illustrated example as long as it is suitable for the present invention such as an elliptical shape.

The operating procedure of this embodiment is as shown in FIG.

First, the conversion body F is installed on the base surface from the traveling direction side of the web W, or the conversion body F is set in advance at the desired conversion point, and the web W is moved to the facing position (see FIG. 3). a), when the winding paper W peripheral body surface is pushed up by input so as to ride on the introduction edge 1 of the conversion subject F, the introduction edge 1
Is bitten in (b in the same figure), and since it is a flat surface up to the line AA ′, it is smoothly fed and placed. When the pressing operation is further performed, the web W comes into contact with the stopper 2 and at the same time reaches the line BB ′ (FIG. 11C).

Since the lower surface of the reaching portion has a pan-bottom shape, the paper W
Can be easily changed in any direction (FIG. 7D).

Second Embodiment: This embodiment is a case of the paper web redirecting device shown in FIGS. 4 and 5 and formed on a two-disc board.

Of the drawings, FIGS. 4A and 4B are a main part explanatory view and a main part enlarged explanatory view showing a groove part and an O-ring setting positional relationship, respectively, which will be described later.

The upper surface member 4a and the lower surface member 4b constituting the conversion main body F'are made of synthetic resin, metal or wood, and concentric groove portions 5 are provided on the joint surfaces of both members 4a, 4b, and the sliding characteristics like Teflon registered resin. An O-ring 6 coated with a coating agent having a is embedded so that smooth rotation can be obtained.

The usage procedure of this embodiment is almost the same as that of the first embodiment, except that the lower surface member 4b is placed or fixed on a base such as a floor surface, and the upper surface member 4a is an O-ring 6. By the adoption, the winding paper W is pushed up from the direction of the set leading edge 1'of the conversion main body F '(Figs. 5 (a) and 5 (b)) to be placed thereon, and the stopper 3 raised in the shape of a single ridge. (Fig. (C)). By being held in that position in a well-balanced state, a state is prepared for turning.

6 and 7 are modified examples of this embodiment.

That is, it is the same as this embodiment except that the shaft portion 7 is provided at the center of the joint surface between the upper and lower members 4a, 4b instead of the O-ring 6.

As the shaft portion 7, FIGS. 7 (1) to 7 (3) are preferable shapes.

In addition, 8 in FIG. 4 and FIG. 6 shows a hanging hole.

〔effect〕

According to the present invention having the above-mentioned structure, firstly, the direction of a heavy paper web can be changed very easily, and the regular position can always be secured by the effect of the stopper simply by placing the paper on the conversion body. Secondly, the worker can easily switch the web in a desired direction without being tired of maintaining the balance between the front, rear, left and right of the conventional guide rod. Third, the conversion direction of the conversion main body is determined. After that, since it is only necessary to pull back the paper roll or rotate it to the other side and push it out, the concerns about accidents such as personal injury, low back pain, and fatigue that were unexpectedly encountered in the past have been resolved. It is a small amount, and when not in use, it can be moved in place and can be organized using the hanging holes, and the production cost is low. The application of the present invention is not limited to the paper roll for printing, but can be applied to general rollable heavy objects such as a rolled iron plate, and the sixth and first embodiments. In particular, the base surface (floor surface)
Has a remarkable effect on a flat surface such as an iron plate,
In addition, in the case of the second embodiment, even if the underlying surface is a rough surface, it can be sufficiently used. As described above, the present invention has a simple structure and is suitable for mass production.
It is economical and practical.

[Brief description of drawings]

The drawings show an embodiment of the present invention. FIG. 1 (a) as a first embodiment is a plan view of a conversion main body, FIG. 1 (b) is a side view, and FIGS. (A) A-A ',
FIGS. 2A and 2B show modified examples of the first embodiment, FIG. 2A is an explanatory view of main parts, FIG. 2B is a plan view, and FIG. FIGS. 3 (a) to 3 (d) are illustrations of how to use the first embodiment, FIG. 4 (a) as the second embodiment is an illustration of essential parts, and FIG. 3 (b) is an enlarged illustration of essential parts. FIG. 6C is a plan view, FIG. 5 is an explanatory view of the usage procedure of the second embodiment, FIG. 6 is a modified example of the second embodiment, and FIG. (B) is a plan view, FIG. 7 is an enlarged explanatory view showing a shape example of the shaft portion in FIG. 6, and FIG. 8 is an explanatory view of a known guide rod. F, F '…… Converter, G …… Base, R …… Guide rod, W
...... Coil paper, 1,1 '…… Introduction edge, 2,3 …… Stopper,
4a ... Top member, 4b ... Bottom member, 5 ... Groove, 6 ...
O-ring, 7 ... Shaft, 8 ... Hanging hole.

Continuation of front page (56) Reference JP-A-52-11565 (JP, A) Actually open 53-123772 (JP, U) Actually open 54-102876 (JP, U)

Claims (4)

[Scope of utility model registration request] 1. An outer peripheral edge of a semicircular portion, which is a disk-shaped conversion main body made of a single iron material and has a flat lower surface that occupies one region when divided into two close to the center. As for the semicircular portion that serves as the edge portion and occupies the other area where the lower surface is curved, the outer peripheral edge facing the introduction edge portion is recessed inward with an appropriate interval and a pair of stoppers is raised. A winding paper direction changing device. 2. The utility model registration claim 1, wherein instead of the pair of stoppers, a stopper is provided in the vicinity of opposite edges of the introduction end edge portion in the shape of a ridge. Winding paper direction changing device. 3. An O-ring coated with a coating agent having slip characteristics is embedded in concentric circular grooves provided on the joint surfaces of a disc-shaped upper surface member and a lower surface member, which are disk-shaped and made of two iron plates. , The outer peripheral edge of the semicircular portion that occupies one area of the rotatable upper surface member when it is bisected through the center of the lower surface member that is placed or fixed on the base such as the floor surface. A winding paper direction changing device, characterized in that a stopper is provided in the form of a ridge in the vicinity of an opposite edge of a semicircular portion which constitutes the introduction end edge portion and occupies the other area facing the introduction end edge portion. 4. In place of an O-ring, a shaft portion is provided at the center of the joint surface of the conversion main body and the lower surface member, and the lower surface member is placed or fixed on a base such as the floor surface. The winding paper direction changing device according to claim 3, wherein the upper surface member is rotatable.