JPS6213803Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a surface printing device, particularly a so-called daruma type cable (hereinafter referred to as "daruma type cable"), which is made by fixing two wires with different outer diameters in parallel and has a large diameter part and a small diameter part. This relates to a surface printing device that can print with high precision on the surface of SS cables.

[Technical background of the invention and its problems] A conventional surface printing device is configured as shown in FIGS. 1 and 2.

That is, a guide roller fixing unit 2 is mounted on a vertical stand 1 so as to be slidable and positionable, and a pair of guide rollers 3 are rotatably attached to this guide roller fixing unit.

Further, a printing wheel fixing unit 4 is mounted on the stand 1 so as to be slidable and orientable while maintaining a constant distance from the guide roller fixing unit 2.

A feed wheel 5 and a print wheel 6 are rotatably supported on the print wheel fixing unit 4 with a space therebetween.

A printing tape 8 is supplied to the surface of the printing wheel 6 from a tape feeding device 7 provided above the feeding wheel 5, and this printing tape 8 is provided at the end of the printing wheel fixing unit 4. The printing tape is adapted to be wound up by a pickup device 9.

A cable 10, which is a material to be printed, is inserted between guide rollers 3, 3, a feed wheel 5, and a printing wheel 6, and is held between them under a predetermined pressure. Here, if the feed wheel 5 is driven by a drive source (not shown), the cable 10 travels in the direction of the arrow in FIG.

During this run, the cable 10 passes through the printing wheel 6. Since the printing wheel 6 is heated to a predetermined temperature by a heating source (not shown) and is pressed against the surface of the cable 10 with a predetermined pressure via the printing tape 8, the cable 10
As a result of the above-described passage, characters, symbols, patterns, etc. carried by the printing wheel 6 are successively printed on the surface of the 0.

Therefore, SS with the above-configured surface printing device
When surface printing is applied to a cable, a guide roller having a V-shaped groove with a groove width corresponding to the outer diameter of the cable must be used in order to prevent rolling etc. as the cable runs.

The above-mentioned guide roller usually has a structure as shown in FIGS. 3A to 3C. That is, a pair of truncated conical cups 11a and 11b are assembled, a stud 12 is inserted through the center thereof, and a handle nut 13 is screwed and tightened to form a guide roller 14. Note that the outer periphery of the large diameter end of each cup 11a, 11b is chamfered slightly wide.

When guiding the small diameter cable 10a using the guide roller configured as described above, the large diameter ends of the cups 11a and 11b are opposed to each other as shown in FIG. The cups 11a and 11b are fastened together to form a guide roller. The small diameter cable 10a is guided in engagement with a small V-shaped groove formed by the chamfers at the large diameter ends of the cups 11a, 11b.

Medium outer diameter cable 10 with larger outer diameter
When guiding b, the small diameter ends of the cups 11a and 11b are opposed to each other as shown in FIG. 3B, and the cups 11a and 11b are fastened in the same manner as described above to form a guide roller. The cable 10b is guided in engagement with a V-shaped groove formed on the slope of each cup 11a, 11b.

When guiding a large diameter cable 10c with a larger outer diameter, use the stud 12 as shown in FIG. 3C.
A guide roller is constructed in which a collar 14 is engaged with the cup 11a and a predetermined gap is formed between the cups 11a and 11b with their small diameter ends facing each other. The large diameter cable 10c is guided in engagement with the wide V-shaped groove.

In the above-mentioned surface printing apparatus for surface printing the SS cable, a guide roller as shown in FIG. 3B is generally used, but this has the following problems.

That is, as shown in an enlarged view in FIG. 4, the running SS cable 10 falls down due to cable rolling, etc., and its small diameter portion 10A abuts one slope 3A of the V-shaped groove of the guide roller 3, causing the SS cable to collapse. A straight line connecting the centers of the large diameter portion and the small diameter portion is inclined with respect to the horizontal plane l.

For example, in Fig. 4, if the diameter D ₁ of the large diameter portion of the SS cable 10 is 20 mm, the inclination angle θ ₁ with respect to the horizontal plane l will be approximately 23°, and if D ₂ = 35 mm, θ
₂ ≒10°.

However, when printing is performed, for example, at two locations spaced apart in the cable axis direction, it is preferable that the printed area printed first and the printed area printed when the guide roller passes may be misaligned, resulting in poor appearance. do not have.

[Purpose of the invention] The invention was created based on the above circumstances.
The object of the present invention is to obtain a surface printing device in which an SS cable can pass through a printing wheel and a guide roller without being inclined with respect to a horizontal plane.

[Summary of the invention] The surface printing device of the invention has two rollers with different outer diameters between the printing wheel and the guide roller equipped with a V-groove.
In a device that performs surface printing by introducing a Daruma-type cable formed by arranging strips of cables in parallel and integrally connecting them and having a large diameter part and a small diameter part, the guide roller is connected to a pair of truncated conical cables. The cups are constructed by arranging their small diameter portions facing each other with a fixed interval, and one cup is fitted with a truncated conical shell-shaped adapter made by combining one or more truncated conical ring-shaped segments. It is characterized by what it did.

[Embodiments of the invention] Hereinafter, embodiments of the invention will be described with reference to the drawings.
FIG. 5 is a front view showing a part of an embodiment of the present invention in cross section. In this figure, a pair of truncated conical cups 2
1a and 21b are assembled with their small diameter ends facing each other, and are connected and fastened in the manner described with reference to FIGS. 3A to 3C. Cup 21a, 2
1b (21b in the figure) has an adapter 22.
is installed.

The adapter 22 has a truncated conical shell shape with an inner circumferential surface that fits into the circumferential surface of the cup 21b, and has a plurality of divided pieces (four pieces 22d to 22n are shown).
It is divided into two parts. The divided piece 22a having the smallest diameter has a radial portion that serves as a spacer for maintaining the predetermined distance, and a portion that engages with the circumferential surface of the small diameter end of the cup 21b connected thereto. Further, the large diameter end of the split piece 22a on the side that contacts the cup is cut off perpendicularly to the axis of the cup 21b. The next divided piece 22b is the divided piece 22a.
The large diameter end has a complementary shape to the large diameter end, and the large diameter end has a shape similar to that of the divided piece 22a. Hereinafter, the same applies to the divided pieces 22c to 22n, but the large diameter end of the largest divided piece 22n is not cut off vertically.

Divided pieces 22a to 22 depending on the model of the SS cable
From among the divided pieces 22a, the required number of pieces are selected in order, and these pieces are engaged with the cup 21b to fasten the cups to define the gap m between the cups in the radial direction of the divided piece 22a, and the required parts are The adapter 22 is constructed by fixing several divided pieces to a cup.

In the surface printing apparatus of the present invention using the adapter 22 configured as described above, for example, when performing surface printing on the relatively small diameter SS cable 20 shown in FIG. conduct. If you do this, SS cable 20
The small diameter portion 20A will float in space, and the line connecting the center of the large diameter portion and the center of the small diameter portion 20A will be on the horizontal plane l.
It does not tilt to the opposite direction.

Therefore, when surface printing is performed at two positions spaced apart in the axial direction, there is no misalignment between the first printed part and the printed part when the guide roller passes, and there is no risk of appearance defects.

Next, when performing surface printing on the large-diameter SS cable 30, printing is performed by additionally connecting the split piece 22b to the split piece 22b. In this way, good printing can be achieved in the same manner as described above.

It should be noted that when surface printing is applied to an SS cable with a larger diameter, it is obvious that printing can be performed by adding and combining divided pieces according to the outer diameter.

[Effects of the invention] As is clear from the above, according to the surface printing device of the invention, the adapter is configured with an optimal number of divided pieces according to the model of the SS cable, and printing is performed while preventing the SS cable from collapsing. There is no risk of loss such as poor printing appearance due to misalignment of the printing section.

[Brief explanation of the drawing]

Fig. 1 is a side view of a conventional surface printing device, Fig. 2 is a front view thereof, Figs. 3 A to C are sectional views showing different usage modes of guide rollers used therein, and Fig. 4 is a guide roller used in the device. FIG. 5 is a schematic diagram for explaining the reason why printing appearance defects occur in surface printing using a roller, and FIG. 5 is a front view showing a part of the guide roller in the present invention in cross section. 3... Guide roller, 6... Printing wheel, 2
1a, 21b...Cup, 22...Adapter, 2
2a to 22n...divided pieces.

Claims (1)

[Scope of utility model registration request] Introducing a Daruma type cable, which is formed by arranging two cables with different outer diameters in parallel and integrally connecting them, and has a large diameter part and a small diameter part, between the printing wheel and a guide roller with a V groove. In the guide roller, a pair of truncated conical cups are arranged facing each other with their small diameter portions spaced apart at a constant interval, and one cup has a truncated conical ring shaped cup. A surface printing device characterized by being equipped with a truncated conical shell-shaped adapter formed by combining one or more divided pieces.