WO2007101778A1

WO2007101778A1 - Apparatus for feeding sheet material

Info

Publication number: WO2007101778A1
Application number: PCT/EP2007/051531
Authority: WO
Inventors: Helmut Ludwig Kraft; Karl-Heinz Gerhard Wienen
Original assignee: Hostert Pro Gmbh
Priority date: 2006-03-09
Filing date: 2007-02-16
Publication date: 2007-09-13
Also published as: EP2007665A1; WO2007101778A8; DE202006003898U1

Abstract

The apparatus according to the invention is, in a preferred embodiment, in the form of a kind of table which can be set up between a colour printer and a cutting apparatus as a passage or transition - or feed device, without the colour printer and the cutting apparatus requiring special devices which would need to be matched to the apparatus according to the invention. The apparatus according to the invention for feeding sheet material to a further-processing device, in particular to a cutting device (16), is characterized in that said apparatus is provided with a longitudinal transport means (8, 11) and a transverse transport means (12, 13) which can be optionally employed intermittently and conveys the individual sheets towards a lateral longitudinal edge (14) which extends in the direction of the longitudinal transport means and parallel to the latter.

Description

Device for supplying blood glucose

The invention relates to a device for feeding Blαttmαteriαl to a Weiterver¬ processing device, in particular a cutting device.

When processing sheet material such as paper sheets, it is necessary to supply the individual sheets in a predetermined orientation of a further processing device with which the individual sheets are further processed, for example cut or folded.

For the correct application and feeding of sheet material to processing facilities manual work is required so far, which is not only time-consuming, but also costly.

The invention is based on the object to provide an apparatus for feeding sheet material to a further processing device, which feeds the individual sheets or sheets without the need for manual work in the desired orientation of a Weitervera processing device.

This object is achieved with a device having the features of claim 1.

Advantageous developments and refinements of the device according to the invention are the subject of the dependent claims. The device according to the invention is able to supply individual sheets or sheets, in particular made of paper, to a further processing in the respectively required position fully automatically, without the need for manual labor of any kind. For example, but not exclusively, the invention is

Device suitable for graphic operations. It can be connected to a printer, such as a color printer, and feed the printed sheets or sheets to a cutter which cuts the printed sheets to the final desired shape and / or size. Aligning and transporting the printed sheets to the further processing device is required without much time, because the device of the invention allows a fast passage of the sheets or sheets to be treated. The device according to the invention is formed in a preferred embodiment as a kind of table that can be placed between a color printer and a cutting device as a transition or feeding device without the need for special equipment to the color printer and the cutting device, the adaptation to would require the device of the invention. It is only necessary to set up the feeding table according to the invention in the desired working position between the discharge end of the color printer and the inlet end of the cutting device.

In the drawing, an embodiment of the device according to the invention for the aligned feeding of sheet material to a cutting device is shown schematically, and that shows

1 is a side view of the device formed as a feed table,

Fig. FIG. 2 is an end view of the feed table of FIG. 1 and

Fig. Figure 3 is a plan view of the feed table disposed at the inlet end of a cutter.

The illustrated in the drawing embodiment of the device according to the invention for feeding sheet material to a further processing device is formed as a feed table 1, which rests on legs 2 and 3, which are respectively provided with adjusting devices 4 and 5, to the height of the upper edge of the table top. 6 set up and adjust.

At the top of the table top 6 transport shafts 7 are arranged transversely to the longitudinal direction 8 of the feed table 1, which protrude beyond the top 9 of the table top 6 and serve to transport not shown in the drawing sheet material in the longitudinal direction 8 of the feed table 1.

The transport shafts 7 are connected to a common drive 10, which drives the transport shafts 7 during operation of the device, so that loaded sheet material is transported in the longitudinal direction or direction of the arrows 11 via the feed table 1 to its outlet end.

The transport shafts 7 are provided in such a large number that they form a kind of surface to transport laid-up sheet material according to their size over the entire length of the feed table 1 uniformly in the longitudinal direction 8 or direction of the arrows 1 1.

Between the transport shafts 7 rollers 1 2 are stored, which provide for a transverse transport or lateral transport of the applied sheet materials in the direction of the arrow 1 3. Preferably, these are for

Reduction of friction between sagging paper web and rolls during longitudinal transport in the direction of the longitudinal transport close behind the Trαnsportwelle arranged. Due to the transverse transport, the sheet materials or the individual sheets are conveyed against a side edge 1 4 of the table top und and thereby aligned when the rollers 1 2 are raised above the transport shafts 7.

The numerous rollers 1 2 are connected to a common drive 1 5, which ensures that all rollers 1 2 are driven at the same speed for the lateral transport of the sheet materials.

In contrast to the drive shaft 7 driven by the common drive 10 at the same speed, the rollers 1 2 are height-adjustable mounted in the table top,, so that the lateral transport or transverse transport is used only intermittently, until the sheet material is aligned and the further transport of the aligned laid leaves not hindered.

The transport shafts 7 are preferably driven only when the transverse transport rollers 1 2 are not driven, and vice versa.

At the outlet end of the feed table 1, a cutting device 1 6 indicated only schematically is arranged, which cuts the paper sheets or paper sheets fed in accordance with the invention in the desired manner. Since this cutter 1 6 is not the subject of the device described herein, details of this device are not shown in the drawing.

In the invention, it depends on the speed of the longitudinal and transverse movement, since suitable printers, in particular high-speed printers, for. B. TurboJet inkjet printers, a typical web of approx. 3, 80 m length in 2.5 seconds eject. Since while ejecting the next web already the previously ejected web is fed to the cutter at the same speed, the transverse movement stops the cutting process. Therefore, the transverse movement must be as fast as possible. The preferred speed of the longitudinal movement is therefore 1 -2.5 m / s and for the transverse movement 0.05 - 0.25 m / s. The table is therefore preferably 1 - 5 m long, 0.5 - 2 m wide. The inventively "lowered rest position" and the "raised operating position" can also simpler, d. H . Without lifting the rollers themselves, be achieved: In one embodiment of the invention, the rollers are not height adjustable and not circular in shape, such that during the rotation of the roller whose surface is temporarily under the Tischoberf surface and temporarily moved over the waves. "Under the table surface" means that the roller surface provides only negligible or no friction resistance to the paper during longitudinal transport. "Above the corrugations" means that the roller surface rises so far above the transport plane of the paper spanned by the wales they can transport the paper across. A non-circular or eccentric role, so z. B. elliptical or cam-shaped, causes a rotation Repeated αbschnittsweise Reibkontαkt with the paper, which leads to the desired movement of the paper to the side stop. This is inventively possible by a simple continuous circular motion without complex mechanism for lifting the rollers. Preferably, the rollers have rough and smooth

Surface sections on. The rough sections are those that come in contact with the paper during longitudinal conveying. A role within the meaning of the invention may also be an arm or a comparable eccentric component, which during a rotation about a shaft can effect a cross-section of the paper in sections and in sections does not stand in the way of the longitudinal transport. All rollers are preferably aligned equally on their common axis. The various axes distributed over the width of the table are also moved synchronously z. B. by means of chain drive, timing belt, stepper motor, etc.

The extending between the shafts and rollers table surface is preferably such that a transport aggravating sticking, z. B. by adhesion, electrostatic charge, etc. of the paper is prevented. Therefore, it is preferably metallic and / or relief. In this sense, preferred products are WLT sheets, z. Eg WLT-05. The table surface has recesses for the rollers. In this case, preferably, the counter to the longitudinal transport direction acting abutting edge of the recess is bevelled downwards, such that the leading edge of the paper during longitudinal transport can not tilt on the abutting edge.

Preferably, the surfaces of the rollers or rollers which are effective during transport have different roughnesses and / or knurls in order to effect a secure transport without wrinkling. It is particularly advantageous if one of the last roles before the lateral longitudinal edge, so the lateral stop for the paper, is rougher than the other roles. The paper is pressed so forcefully and safely against the lateral stop, without the risk that the paper bulges or waves. The same applies to the rolls, in particular close to the cutter or printer exit: The nearby rolls must push the comparatively long free paper end safely into the cutting device or pull it out of the printer and are therefore rougher than the remaining rolls.

An alternative low-cost design comes without separate means for the transverse transport, such as roles, from. This is achieved by slightly diagonally arranged rolls, which are at an angle of 75- 89.5 °, preferably 85-89 ° instead of 90 ° to the lateral longitudinal edge. As a result, a certain transverse transport is effected in the longitudinal transport on the equilateral side, so that the paper is aligned against the lateral longitudinal edge.

Preferably, the rollers and / or rollers are rubberized. Rubberized rollers ensure a safer transport and alignment, especially in a diagonal arrangement. The transverse transport can also be effected by rollers arranged perpendicular to the longitudinal edge, if they are movable in the transverse direction. For this purpose, the rollers are first moved slowly in the transverse direction to the Längska to, so that the paper deposited thereon is transported in the transverse direction. It follows a jerky movement of the rollers against the transverse direction, so that there paper can not follow because of the inertia of this backward movement. The alternating slow and jerky movements are repeated until the paper abuts the longitudinal edge. If the rollers have sufficient lateral freedom of movement, a slow transverse movement is already sufficient to align the paper on the longitudinal edge. The aligned paper is then driven longitudinally through the rotating rollers into the cutting machine. Since after the backward movement of the rolls takes place in the transverse direction without paper. Finally, it is possible to lower the rollers during the backward movement.

The method according to the invention proceeds as follows:

Ejecting a first sheet material, in particular paper, banners, fabrics, films, tarpaulins, coated fabrics, self-adhesive films from the printer onto the table according to the invention; thereby longitudinal conveying of the first sheet material through the rollers until the sheet material is completely on the table; Activating the roles; - Transverse transport of the first sheet material through the rollers to the lateral longitudinal edge; Disabling the roles;

Longitudinal conveying of the first sheet material through the rollers into the cutting device and thereby repeated cutting of the first sheet material in the transverse direction in the cutting device; while simultaneously ejecting a second sheet material from the printer on the table according to the invention and longitudinal conveying of the second sheet material through the rollers until the sheet material is completely on the table.

In general, as the invention ß also the inversion, in particular that instead of rollers rollers and vice versa can be used and the rollers are lowered or raised instead of the rollers.

Claims

claims:

1 . Apparatus for feeding sheet material to a further processing device, in particular a cutting device, characterized in that it comprises a longitudinal transport (8, 1 1) and an intermittently selectively usable transverse transport (1 2, 1 3), the individual sheets against a lateral longitudinal edge (1 4) which extends in the direction of the longitudinal transport parallel to the same, is provided.

2. Apparatus according to claim 1, characterized in that the longitudinal transport drivable shafts (7).

3. Apparatus according to claim 1 or 2, characterized in that the transverse transport also jointly driven rollers

(1 2) disposed between the shafts (7) a and rotatable about axes which are perpendicular to the axes of rotation of the shafts (7). 4. Device according to one of claims 1 to 3, characterized in that the rollers (1 2) between a lowered rest position and a raised operating position in which they survive on the shafts (7) are adjustable. 5. Device according to one of the preceding claims 1 -3, characterized in that the rollers (1 2) are designed eccentrically, such that currency rend the rotation of the rollers whose surface is temporarily under the table surface and temporarily moves over the waves. ό. Device according to one of the preceding claims, characterized in that the surface of the rollers have rough and smooth surface sections. 7. Device according to one of the preceding claims, characterized in that the eccentric, preferably elliptical, cam-shaped, roller is such that the roller during rotation causes a repeated section-wise frictional contact with the sheet material, resulting in the desired transverse movement of the sheet material to the lateral longitudinal edge (1 4) leads.

8. Device according to one of the preceding claims, characterized in that the rollers are equally aligned on their common axis, wherein the different distributed over the width of the table axes are also synchronously movable, preferably by means of chain drive, timing belt, or stepper motor.

9. Device according to one of the preceding claims, characterized in that between the shafts and rollers a table surface is provided, the nature of which is selected so that a transport of the sheet material aggravating sticking is prevented, preferably the d

Table top is metallic and / or relief.

1 0. Device according to one of the preceding claims, characterized in that the effective during transport surfaces of the rollers or rollers have different roughness, in particular, the side of the longitudinal edge near rollers and / or d the rollers close to the cutting device has a higher roughness than that other roles. 1 1. Device according to one of the preceding claims, characterized in that the rollers are at an angle of 75-89.5 °, preferably 85-89 ° to the lateral longitudinal edge, such that with rotating rollers, the longitudinal transport simultaneously causes a certain transverse transport, so that the Sheet material is aligned against the lateral longitudinal edge

1 2. Device according to one of the preceding claims, characterized in that the longitudinal transport causing rollers are transversely movable and / or lowered.

1 3. A method for feeding sheet material to a cutting device from a high-speed printer, in particular by means of a device according to one of the preceding claims, comprising the following steps: ejecting a first sheet material, in particular paper,

Ba men, tissues, films, tarpaulins, coated fabric, self-adhesive films from the printer to the table according to the invention Shen; thereby longitudinal conveying of the first sheet material through the rollers until the sheet material is completely on the table;

Activating the roles;

Transverse transport of the first sheet material through the rollers to the lateral longitudinal edge; Disabling the roles; - longitudinal conveying of the first sheet material through the rollers in the cutting device and thereby repeated cutting of the first sheet material in the transverse direction by the cutting device; while simultaneously ejecting a second sheet material from the printer to the table according to the invention and

Longitudinal conveying of the second sheet material through the rollers until the sheet material is completely on the table,

The method of claim 1 3, wherein the first and second sheet materials are transported at the same speed in the longitudinal direction.