Typewriting machines – Sheet or web – For feeding sheet from stack or pack holder
Patent
1986-12-16
1988-08-16
Burr, Edgar S.
Typewriting machines
Sheet or web
For feeding sheet from stack or pack holder
400635, 400625, B41J 1312
Patent
active
047640430
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to a device for marking of comparatively stiff, bendable sheets by means of a stationary write head, which sheets by means of a drive mechanism are displaceable relative to the write head along a linear guiding path, and which device comprises a member for feeding sheets one at time from a magazine.
BACKGROUND OF THE INVENTION
On the market today there can be found different types of marking systems for electrical wires, pipes and the like. There are rules for how these markings should be performed and what they should look like, and the markings must be made so as to be as permanent as possible. When marking larger installations, as for example parts in a large machine or a complete construction, it is very important to have control such that all wires really become marked.
SUMMARY AND ADVANTAGES OF THE INVENTION
The purpose of the present invention is to achieve a system for marking of a stiff yet bendable sheet, which system is economical, simple and reliable. The system also very rapidly produces a large number of sheets. Another purpose is to achieve a feeding means for the sheets. In the feeding means the sheets are arranged to cooperate with guide member movable to-and-fro in the longitudinal direction of a guide path by a driving device. The feeding means includes a slide track which is inclined relative to the guide path and is connected to a magazine. Downstream of the slide track at a location above the guide path there is arranged a driving wheel for feeding the front edge of each sheet along the guide path until the rear edge of the sheet leaves the slide track and is completely located on the guide path and in cooperation with the guiding device.
DESCRIPTION OF THE DRAWINGS
The invention will in the following be described with reference to the enclosed drawings.
FIG. 1 is a side view of a marking device according to the invention;
FIG. 2 is a perspective view obliquely from above of a part of the marking device in accordance with FIG. 1;
FIG. 3 is a sectional view, on an enlarged scale, of part of the device of FIG. 1; and
FIG. 4 is a plan view, with some parts omitted, showing the drive mechanism of the device.
DETAILED DESCRIPTION
The device according to the invention includes a table 1 with a control panel 2 and a write head 3, for example on ink beam writer arranged above the table. The ink beam writer is fixed on a telescopically displaceable arm 4, which is vertically adjustable by means of a sleeve clamp 5 arranged on a pillar 6. On the table 1 a plate 7 is arranged, which plate can be adjusted in horizontal direction (Y-direction) by means of a stepping motor 26 along guides 29 (FIG. 3) by means of an endless band 30. Above the plate 7 there is arranged a feeding device 27, including a sliding track 8 which leads downwardly form a magazine 9, for sheets 21. At the other end of the table 1 there is arranged a collecting receptacle 10 for the sheets 21. To the head 3 of the ink beam writer there is connected a plurality of wires 11, which are connected to equipment (not shown) for supplying ink to the ink beam writer. The table is controlled by means of a computer (not shown) for example a IBM PC.
In FIG. 2 a part of the plate 7 arranged on the table 1 is shown more in detail. On the plate 7 there is arranged a guide assembly for guiding sheets along a path. The assembly includes two T-shaped rules 12, T-shaped in cross section, each provided with an upright guiding flange 13a and horizontal side shanks 13b. The rules 12 can be adjusted in the Y-direction by means of, for example, screws 14 provided with finger nuts, which screws protrude through slots 15. There is an elongated slot 16 which extends in the X-direction of the plate 7, and a peg 17 protrudes upwardly through the slot 16. The peg is fixed on an endless belt 18, which can be moved in the X-direction by means of a second stepping motor 28 (FIG. 4). The write head 3 can be adjusted manually in relation to the plate 7 so that the best marking result is obtained. This is achieved by the
REFERENCES:
patent: 4147341 (1979-04-01), Wurscher et al.
patent: 4160606 (1979-07-01), Coenazzo
patent: 4440387 (1984-04-01), Ikoma et al.
patent: 4505467 (1985-03-01), Brocklehurst
I.B.M. Technical Disclosure Bulletin, vol. 15, No. 7, 12/72, "Antitreeing Device for Paper Feed Mechanisms", Brown, p. 2311.
Burr Edgar S.
Fleximark AB
Pham Huong Q.
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