JPS5943757A - Vacuum roller for magnetic coater - Google Patents

Abstract

PURPOSE:To make it possible to attract a magnetic film by suction and transfer it without damage and as well to increase the area of attraction, by integrally connecting ceramic blocks together continuously arranged in the circumferential direction, and making the thus obtained connected parts air-impermeable. CONSTITUTION:Porous ceramic blocks 34 are arranged so that each ceramic block 32 is attached to the outside of each of vacuum grooves 31 formed in an outer metal cylinder 30 with the use of bonding agent 35. Further, fine ceramic compound 34 is embedded between each circumferentially adjacent blocks 34 so that the gap between each adjacent blocks 34 is made air-impermeable to part the ceramic blocks from each other for blocking the air-communication between each adjacent ceramic blocks 34. After the ceramic compound 36 being cured, the outer peripheral surface of a ceramic roller 33 is finished by polishing, to form the entire peripheral surface into a suction surface so that a vacuum roller having the outer metal cylinder 30 unexposed, is obtained. A magnetic film 29 may be attracted onto the outer surface of such a roller and may be transferred without being damaged or without its magnetic characteristics being deteriorated.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vacuum roller for stacking a magnetic coater, which attracts a magnetic film sent from a film reel and transfers it to the next processing section or from one film processing system to another.

FIGS. 1 and 2 show a conventional vacuum roller and a vacuum roller device equipped with the vacuum roller.

The vacuum roller device shown in these figures includes a frame 1.2, a vacuum roller 3 rotatably supported on the frame 1 side, and an inner cylinder 16 fixed on the frame 2 side.

The vacuum roller 3 has a rotating shaft 4, end plates 7 and 8 arranged at both ends in the axial direction, an outer cylinder 10, and a plurality of ceramic blocks 15 assembled thereto.

The rotating shaft 4-1 is supported by one frame 1 via a bearing 5, and is connected to a rotational drive source (not shown) via a gear 6 attached to the end of the shaft. One end plate 7
is connected to a flange 4' provided at the end of the rotating shaft 4 by bolts 9. The outer cylinder 10 is made of metal and is integrally assembled with the end plates 7 and 8. Further, a plurality of grooves 11 are formed on the outer circumferential surface of the outer cylinder 10 at equal intervals in the circumferential direction, and both sides of each groove 11 in the circumferential direction correspond to the wall thickness of the outer cylinder 10. A fin-shaped projection 12 is formed as a part, a vacuum groove 13 is formed inside each groove 11, and a vacuum hole 14 is provided inside each vacuum groove 13. A porous ceramic block 15 is fitted into each groove 11 and bonded.

A short shaft 17 is provided at one end in the axial direction of the inner cylinder 16, and a hollow shaft 18 is provided at the other end, and the inner cylinder 16 is fixed to the other frame 2 via the hollow shaft 18. ing. A bearing 19 is provided between the short shaft 17 and the end plate 7,
A bearing 20 and a seal member 21 are interposed between the hollow shaft 18 and the end fold 8. In addition, a vacuum groove 22 is formed on the outer peripheral surface of the inner cylinder 16, with a part of the circumference cut out.
A vacuum hole 23 is provided inside the vacuum groove 22, and a vacuum chamber 24 is provided inside the inner cylinder 16. Inside the hollow shaft 18, one end is vacuo-empty 2.
4, and the other end is a vacuum passage 25 closed with a blind stopper 27. Furthermore, the hollow shaft 18 has a vacuum vibe 26 connected to a vacuum source (not shown).
is installed.

In this vacuum roller device, the vacuum source,
Vacuuming is performed through the vacuum vibrator 26, the vacuum passage 25, the vacuum chamber 24, the vacuum hole 23 provided in the inner cylinder 16, and the vacuum groove 22, and the vacuum roller is As the vacuum roller 3 is rotated, the position of the vacuum groove 22 changes, and the vacuum hole 14 provided in the outer cylinder of the vacuum roller 3 is moved one after another, and the vacuum hole 14 is communicated with the vacuum groove 22. (Vacuum source 13 of outer cylinder 10 communicating with vacuum hole 14 and ceramic block 1
The magnetic films 29 are attracted one after another through the magnetic film 5 and are sequentially transferred as the comb roller 30 rotates.

However, in the conventional vacuum roller 3, the ceramic block 1 is provided on both sides of the groove 110 for fitting the ceramic block formed in the metal outer cylinder
A protrusion 12 for holding the groove 11 is provided.
When the ceramic block 15 is fitted and bonded, the surface of the vacuum roller 3 is ground and finished, the surface of the protrusion 12 is likely to be damaged by chips from the ceramic block 15. If the surface of the vacuum roller 3 including the surface of the protrusion 120 is scratched, there is a problem that the magnetic properties of the magnetic film 29 are adversely affected.

Further, during the grinding process, sufficient care must be taken not to damage the surface of the protrusion 12, so if the protrusion has poor workability and is plated, extreme care must be taken.

An object of the present invention is to provide a magnetic coater tail vacuum roller that does not adversely affect the magnetic properties of the magnetic film, has good workability, and can increase the suction area.

The features of the present invention include a ceramic roller in which a plurality of air-permeable ceramic blocks are arranged in the circumferential direction, the adjacent ceramic blocks in the circumferential direction are joined together, and the joined part is made into a non-air-permeable structure. It is in the preparedness,
With this configuration, the above objective was reliably achieved.

Hereinafter, the present invention will be explained based on the drawings.

3 and 4 show an embodiment of the present invention, in which a ceramic roller 33 is arranged on the outer peripheral surface of a metal outer cylinder 30. FIG.

A plurality of vacuum grooves 31 are formed on the outer peripheral surface of the outer cylinder 30 at equal intervals in the circumferential direction, and a vacuum hole 32 is provided inside each vacuum groove 31.

As shown in FIG.
It is constructed by combining individually arranged ceramic blocks 34. Each ceramic block 34 is porous and transparent. A fine ceramic kneaded material 36 is embedded between the ceramic blocks 34 , 34 adjacent to each other in the circumferential direction, and is made non-porous, and partitioned so that the adjacent ceramic blocks 34 , 34 do not communicate with each other. ing.

Ceramic blocks 34 are arranged outside the outer cylinder 30, each ceramic block 34 is adhered to the outer cylinder 30, and a fine ceramic mixer 36 is embedded between the circumferentially adjacent ceramic blocks 34 and 34, and solidified. After that,
The outer peripheral surface of the ceramic roller 33 is ground and surface-finished. During this grinding process, the outer circumferential surface of the metal outer cylinder 30 is completely covered by the ceramic roller 33, so that the problem of scratches on the outer cylinder 30 caused by chips etc. from the ceramic block 34 can be completely eliminated. I can do it.

Ceramic blocks 34 adjacent to each other in the circumferential direction
, 34 can be reduced, so the magnetic film 29
The adsorption area can be increased.

- Still, in the embodiment shown in FIGS. 3 and 4, the ceramic blocks 34, 3 are adjacent to each other in the circumferential direction.
Glass may be embedded between the four spaces.

The other configurations and functions of the embodiment shown in FIGS. 3 and 4 are the same as those shown in FIGS. 1 and 2, and in FIGS. The same members as those shown in FIG. 2 are denoted by the same reference numerals, and further explanation will be omitted.

Next, FIGS. 5 to 8 show various other embodiments of the present invention.

What is shown in FIG. 5 is each ceramic block 3.
4 and the outer cylinder 30, and the circumferentially adjacent ceramic blocks 34, 34 are bonded together with an adhesive 37. As a result, in this example, the ceramic block 3
The adsorption area of No. 4 can be further increased.

Moreover, the one shown in FIG. 6 is a ceramic roller 38.
It is formed by bonding ceramic blocks 39 arranged in the circumferential direction with an adhesive 40, and the ceramic roller 38 is directly rotated around the inner cylinder 16.

Furthermore, in the case shown in FIG. 7, the outer shape of the outer cylinder 41 is formed into a regular polygon, and the ceramic blocks 43 formed to match one side of the outer shape of the outer cylinder 41 are arranged. The ceramic roller 42 is bonded to the cylinder 41 using an adhesive 44.

Next, in the case shown in FIG. 8, a synthetic resin coating agent is applied to the surface of the ceramic block, and ceramic particles 45 are coated on the surface of the ceramic block.
A thin film 46 is formed on the surface of the ceramic particle 450 to prevent the corners of the ceramic particles 450 from damaging the magnetic film.

The other features of the structure 1 of the embodiments shown in FIGS. 5 to 8 are the same as those of the embodiments shown in FIGS. 3 and 4.

The present invention has the above-described configuration 2, and according to the present invention, a plurality of ceramic blocks are arranged in the circumferential direction,
These ceramic blocks are joined together and the combined part is made non-porous by a ceramic roller that attracts and transfers the p magnetic film, so it is protected against scratches from rotating bodies such as metal outer cylinders. In addition to having the effect of completely eliminating the negative effects on the magnetic properties of the magnetic film, there is no fear that the surface of the rotating body made of metal will be damaged by chips from the ceramic block when grinding the ceramic roller. This has the effect of significantly improving workability.

Furthermore, according to the present invention, since the gap between adjacent ceramic blocks in the circumferential direction can be reduced, the attraction area of the magnetic film can be increased, and therefore the transfer speed can be significantly increased. .

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional front view showing the prior art, FIG. 2 is a longitudinal sectional side view thereof, FIG. 3 is a longitudinal sectional side view showing an embodiment of the present invention, and FIG. 4 is a partially enlarged view of FIG. 3. 5 through 8 are partially enlarged views of various embodiments of the invention. 29... Magnetic film, 30... Vacuum roller outer cylinder, 33... Ceramic roller, 34... Ceramic block, 35... Adhesive, 36... Fine ceramic mixed material, 37.・Adhesive material, 38...
Ceramic roller, 39...ceramic block,
40... Adhesive material, 41... Outer cylinder, 42...
Ceramic roller, 43°°° ceramic block, 4
4...Adhesive material, 45...Ceramitsuri particles, 46
...Membrane 6, Substitute F + 4 patent attorneys Susuki 1) Toshiyuki 2 mouths (5 arms) ・--7/

Claims (1)

[Claims] A ceramic roller is provided in which a plurality of air-permeable ceramic blocks are arranged in the circumferential direction, the ceramic blocks that are adjacent to each other in the circumferential direction are joined together, and the joined part has a non-air-permeable structure. Vacuum roller for magnetic coater loading.