JPH0574836U - Marking roll - Google Patents

Abstract

(57) [Abstract] [Purpose] To make it possible to inexpensively perform mark transfer by a marking device equipped with a marking roll and to reduce equipment cost. [Structure] A notch 20 is formed inwardly in a radial direction on a circumferential surface of a roll main body 12, and a film 22 having a predetermined mark is wound around the circumferential surface of the roll main body 12, and both end portions thereof are wound. Is bent and inserted into the notch 20, and then the bent portions 24 are fixed to each other by a fixing material 26 to form the marking roll 10.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention relates to a marking roll for a device that transfers a predetermined mark onto a hose, an electric wire, or the like.

[0002]

[Problems to be solved by conventional techniques and devices]

 Conventionally, a mark for identification has been provided on the surface of the hose, and as a device therefor, a device as shown in FIG. 5 (a) is known.

In this apparatus, a steel marking roll 100, which is formed by engraving a predetermined mark on the circumferential surface, is rotated while partially immersed in the ink contained in a tank 102, and adhered to the circumferential surface. The excess ink is scraped off by the scraper 104 and then pressed against the hose 106 to transfer the mark on the circumferential surface to the hose 106.

However, this device requires the number of marking rolls 100 according to the type of hose 106 or the number of marks to be transferred, and the entire marking roll 100 is changed every time the hose 106 or the mark changes. There was a problem that the product had to be replaced and used, and the cost was high.

On the other hand, as shown in (b) and (A), a film 110 is wound around the circumferential surface of the roll body 108, and a predetermined mark is imprinted on the film 110, whereby the marking roll 112 is formed. It is also considered to configure.

Here, as a means for fixing the film 110 wound around the roll main body 108, both ends of the film 110 are obliquely cut as shown in FIGS. A method is used where they are diagonally butted and fixed with an adhesive.

In this case, when the film 110 is attached, its length is made slightly shorter than the circumference of the roll body 108, and the ends of the film 110 wound around the roll body 108 are pulled in the circumferential direction, but the end faces are butted. And to fix them with an adhesive.

However, in the case of this method, it is unavoidable that a relatively large gap is generated between the end faces when the film 110 is mounted.

Thus, this gap becomes a dent, and when the marking roll 112 is immersed in the ink tank, the ink will enter the dent.

The ink that has entered the depression cannot be scraped off by the scraper 104. Therefore, in the apparatus using the marking roll 112, as shown in the figure, the transfer roll made of silicon rubber or the like is used. 114 is separately provided, and the marking on the marking roll 112 is once transferred onto the transfer roll 114 and then printed on the surface of the hose 106.

A recess (escape) 116 is formed in the transfer roll 114, and the ink that has entered the recess between the end faces of the film 110 is cut off at this recess 116, and the ink that has entered the same part is cut off. The transfer roller 114 prevents the image from being copied onto the hose 106.

However, in the case of this apparatus, the transfer roll 114 is separately required, and the equipment becomes large in scale, and it is not possible to add or change the equipment to the existing apparatus that uses the steel marking roll 100 alone. There is a problem that it becomes necessary.

[0013]

[Means for Solving the Problems]

 The present invention has been made to solve such a problem, and its gist is to make a notch radially inward at a predetermined portion on the circumferential surface of the roll body and to engrave a predetermined mark. The film is wound around the circumferential surface of the roll body, both ends thereof are bent and inserted into the cut, and the bent portions are fixed to each other by a fixing material.

[0014]

[Action and effect of the device]

 With the marking roll of the present invention, when changing the type of a material to be printed such as a hose or the mark to be printed, it is possible to respond by changing the film wound around the roll body.

That is, it is not necessary to prepare an expensive roll main body for each type of material to be printed such as a hose or for each mark to be printed, and thus the required cost can be reduced.

Further, in the marking roll of the present invention, the end portion of the film is bent and inserted into the notch of the roll main body. Therefore, the end portion inserted into this notch is directed radially inward. A necessary tension can be given by pulling.

Further, the tension can be adjusted by controlling the tensile force or the amount of insertion into the notch at that time.

Therefore, according to the present invention, unlike the case where the tension is applied or the tension is adjusted based on the formation of the gap between the end faces of the film as in the device shown in FIG. 5, the film alignment is performed. It is possible to minimize or eliminate the eye gap as much as possible.

If the gap can be almost eliminated, the ink can be prevented from entering and accumulating in the same portion, and the transfer roll shown in FIG. 5B is not required.

In the present invention, in consideration of the possibility that a minute gap may be formed at the seam of the film, a reactive resin, for example, a photocurable or thermosetting resin is applied to the same portion and cured. It is desirable to allow it.

In this way, it is possible to more reliably prevent the ink from entering the seams and joints of the film, and it is possible to reliably scrape the ink adhering to the surface of the same portion with the scraper.

[0022]

【Example】

 Next, an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1D shows a main part of a marking roll according to an embodiment of the present invention. In this figure, 10 is a marking roll, and 12 is a steel roll body.

As shown in FIGS. 2 and 3, the roll body 12 has a fitting hole 14 for fitting with a drive shaft and a key groove 16 for transmitting a driving force.

The roll main body 12 has a circumferential surface 18 having a predetermined width which serves as a film mounting surface, and a slit-like notch 20 is formed radially inward at a predetermined portion on the circumferential surface.

A resin film (photo-curable resin film) 22 (see FIG. 1) is wound around the circumferential surface 18, both ends thereof are bent and inserted into the notch 20, and then the fixing material 26 is attached. The bent portions 24 are fixed to each other.

Here, as the adhesive 26, a photocurable resin, for example, a resin containing a specially modified acrylate resin as a main component can be used. Needless to say, it may be a thermosetting type, or may be a type that is cured by light and heat.

A predetermined mark is engraved on the film 22 wound around the circumferential surface of the roll body 12. Therefore, the marking roll 10 is partially immersed in the ink tank to rotate so that the ink adheres to the film 22, and the excess ink is scraped off by a scraper to bring the film 22 into contact with a predetermined printing material such as a hose. Thereby, a predetermined mark can be transferred to the printing material.

In the marking roll 10 of this example, the film 22 can be mounted as follows. First, as shown in FIG. 1 (A), a film 22 having a predetermined marking is wound around the circumferential surface 18 of the roll body 12, and both ends are bent to form these bent portions 24. Insert into the notch 20 of the roll body 12.

Next, as shown in FIGS. 4 and 1B, the end of the inserted bent portion 24 is gripped by a jig 28 having a gripping piece 30, and the jig 28 is moved downward in the drawing. The bent portion 24 is pulled inward in the radial direction.

As a result, a predetermined tension is applied to the film 22, and the film 22 is brought into close contact with the circumferential surface 18 of the roll body 12.

Thereafter, as shown in (C), while the sheet 29 is covered, the fixing material 26 made of the above-mentioned light or thermosetting resin is injected into the joint portion of the film 22 to be solidified, and the bent portion 24 The films 22 are fixed to each other and at the same time, the film 22 is fixed to the roll body 12.

In the case of the marking roll 10 of this example, it is possible to prevent a gap from being generated in the joint portion of the film 22, and therefore, when a predetermined mark is transferred using the marking roll 10, the film 22 The ink does not get into the gap between the seams, and the ink attached to the seams can be scraped off sufficiently with a scraper.

Therefore, it is not necessary to separately provide a transfer roll as shown in FIG. Therefore, the existing marking device that uses a steel roll alone can be used as it is without adding or changing the equipment.

Further, when changing the type of the material to be printed or the mark to be applied, it can be dealt with only by replacing the film, and the cost can be kept low.

The embodiment of the present invention has been described in detail above, but this is merely an example, and the present invention can be configured in a form in which various modifications are made based on the knowledge of those skilled in the art without departing from the spirit of the invention. is there.

[Brief description of drawings]

FIG. 1 is an explanatory view of a film mounting method for a marking roll according to an embodiment of the present invention.

FIG. 2 is a perspective view of a roll body in the marking roll.

FIG. 3 is a view showing a front and side sectional configuration of the roll main body.

FIG. 4 is an explanatory diagram of a main part of a film mounting process of FIG.

FIG. 5 is a background illustration of the present invention.

[Explanation of symbols]

 10 Marking roll 12 Roll body 20 Cut 22 Film 24 Bent part

Claims (1)

[Scope of utility model registration request] 1. A roll body is provided with a notch radially inwardly at a predetermined position on the circumferential surface thereof, and a film having a predetermined mark is wound on the circumferential surface of the roll body.
A marking roll for a marking device, characterized in that both ends thereof are bent and inserted into the cut, and then the bent parts are fixed to each other by a fixing material.