DE202008007077U1 - Strip insert with telescopic guide - Google Patents

Abstract

Tab inserter to mark defined blocks 6 stacked flat objects 2, during the stacking with the help of a stacking arrangement 9 each on the last flat object of a block 6 a ribbon 12 can be placed, which advanced to the beat of the bow sequence and with Help an integrated cutter 13 is separated from the ribbon, characterized in that the arrangement 9 with a telescopic arm a fixed guide rail 10 and one in this in the longitudinal direction segmentally displaceable strip guide 11, which is a for Part covered feed chute 20 for the supplied via a skew 17 band 12 forms and over the provided in the segment spacing transverse slots 21 under this single cover 23 insertable is.

Description

The The present invention relates to a device for feeding Paper strip to a stack of flat objects (eg paper sheets) around this Paper strips between the items to be able to position. Consequently can while the automatic stacking marked by means of these strips exactly counted blocks become.

The The present invention will be described below using the example of a strip inserter described on a printing press. It is noted that This device is also suitable in other technical fields and that the description of the invention in relation to a printing press no restriction the application of the invention means.

The Printed matter is further simplified referred to as bow, Again, this is not intended to be limiting mean and refers to all types of printable products and objects one. The device for feeding of paper strips is called STR (strip insert).

The Inserting the strips must be done with high precision. If the selected block size is not reached, the pile must be counted by hand.

Therefore It is very important that the STR at each sheet size and changing stack height is stable.

The Operators of printing presses expect the operation over several Hours automatically and largely without control.

Of the STR must therefore be designed to be reliable and secure without interference works and thus avoids the time required by hand count would.

outgoing from the above considerations The present invention therefore has the object, a Device for feeding Strip to create a forming paper stack, which reliable and over a longer one Period trouble-free works and which even in difficult space conditions can be used. There are already different STRs which but for the use of hard to reach Printing machines and other production machines are not suitable or can not exist with the reliability, or only with significantly higher price accurately fulfill the required functions.

To preferred developments of the invention are the subject of the dependent claims.

Of the STR according to the invention designed such that a displaceable strip guide provided is, which leads from the boom side to the sheet pile.

Of the STR is preferably attached to the boom side. That's guaranteed an immovable positioning, what with a mobile stand device not is achieved permanently. The strip guide can according to the Stack height variations sensitive be adjusted, the basic position of the STR is not changed.

at Format width change is only the sliding strip guide accordingly pushed back, again without changing the basic position.

The inventive embodiment of the STR has considerable compared to the prior art Advantages.

Out various security reasons printing presses had to be retrofitted accordingly. But that will some access to the paper stack during operation of the machine for STR severely limited according to the current state of the art. But even without these conversions it has always been partly awkward, the most suitable location of the stack with the strip guide too to reach. Either the printer could hardly find a test sheet pull when the standing device could be positioned at the front of the stack or that Tripod was in the way by cramped space. It could not be ruled out that the position of the strip guide through Bumps against the tripod changed which, as a rule, resulted in inaccuracies of the count.

By the already partially implemented new security measures is the access to the stack from the front anyway with many machine models no longer possible without compromise.

Only the side access remains! But here, too, there are limitations due to different configurations z. As the protective covers, etc., which does not allow the use of the equipment in part, when the narrowest bow is driven! Another limitation for upright machines is that the length of the strip guide becomes disproportionate. This causes a difficult handle when positioning the guide to the stack. There are some obstacles to get around. These difficult maneuvers are not accepted and lead by the printers experience therefore damage to the most sensitive part of the STR, which can lead to failure.

One Another disadvantage is that when not using the STR, but even at maximum sheet width of the STR up to 1 m next to the Machine protrudes into the room. If this position hinders, then needs a safe place. Such is the case of bulkiness the long strip guide often hard to find, so even damage can not be ruled out. Printing masters and printers with experience then reject or use these devices this sometime not more.

Out It can be seen from the foregoing description that this new solution represents a sufficiently high inventiveness and therefore appears worthy of protection.

The The invention relates to a device for marking defined blocks stacked flat objects.

It Strip insulators of this type are known in which during the Stacking up with the aid of a strip guide extending to the stack a marker stiffening the last flat object of a block can be placed, that of an endless belt to the beat of the block formation advanced and with the help of an integrated cutting device detachable from the belt. In this strip insert is changed in case Bow widths the entire device crazy, which is always a complete Re-adjustment of the strip inserter makes necessary and damage the device favors.

task The invention is to provide a strip insert, with the without a change of location safe feed the marker strip when stacking during use is possible.

These The object is solved by the features of the current claim 1.

By this inventive measures can the invention are arranged laterally to the stack, the adaptation at stack other width by merely moving the telescopic arm (strip guide) takes place.

further developments The invention results from the further claims.

figure description

1 shows the strip insert according to the invention in side view opposite a stacking pallet of a printing press.

2 shows a detail of 1 , in particular the oblique feed for feeding a flat strip to the strip guide.

3 and 4 are cross sections III-III and IV-IV by strip guide of the strip insert after 2 ,

5 is a perspective view of the strip insert after 1 ,

The one from a printing press 1 ejected bows 2 be on top of each other on a pallet 3 stored. The pallet 3 is using a lifting and lowering device 5 always positioned so that the top sheet 2 of the forming stack 4 always at about the same height. In this pile 4 is in each case after an input number, z. B. 500 sheets, to identify blocks 6 same number of marks a marking strip 7 with the aid of the strip insert according to the invention 8th inserted so that after laying out the last sheet 2 a block 6 a marker strip 7 placed on this sheet and then covered by the next sheet, whereby he is fixed in position. A short section of the marker strip, as shown, clearly indicates the blocks 6 sideways out of the stack 4 in front.

The strip insert according to the invention 8th , will be on the side of the press 1 positioned, their signatures 2 other than shown, one towards the strip feeder 8th have greater width. To adapt to a variable sheet width of the strip feeder 8th an arrangement 9 acting as a telescopic arm with one opposite the stack 4 fixed guide rail 10 and from a strip guide which preferably advances segmentwise in this direction in its longitudinal direction 11 that exists with his the pile 4 facing end by engagement or disengagement of different size stackable and can be locked in the respective position. This is always in the height of the last arc of the top block 6 in the pile 4 and is finely adjustable in height in this sense.

About this strip guide 11 becomes a flat band 12 the stack 4 gradually fed, its end over the top block 6 pushed and then with the help of a rotating cutting knife 13 is separated. The cut is timed so that at least the next or more sheets are on it. The end of the strip guide 11 should be 10-30 mm in front of the stack 4 be. This distance determines the protruding from the block length of the inserted strip 7 ,

The flat band 12 gets from a roll 14 via a stepper motor 15 deducted, synchronously with a Bogenzähleinrichtung 16 each upon reaching a definable lot or block size, ie z. B. after 500 sheets, the ribbon around the length of a marker 7 advances.

The feeding of the flat band to the strip guide 11 takes place via a sloping inlet 17 that's in the angle 17A of preferably 13 ° against the horizontal strip guide 11 inclined and inen closed channel 18 forms, at the bottom with a baffle 19 the flat band 12 in the strip guide 11 directs.

The strip guide 11 has a feed chute 20 in the rear area over one of the adjustment length of the strip guide 11 corresponding section in segmented sections with transverse slots 21 for the insertion of the ribbon beginning in the feed chute 20 is provided. Every transverse slot 21 has a bevel in the feed direction 22 as a guide surface of the beginning of the tape during insertion, so that it is reliably fed into the feed chute and can not rauskann more.

The cover section between the transverse slots 21 can be a single bridge or single cover 23 or part of a total cover into which the slots are milled.

The strip feeder is to be attached to the printing press such that the strip guide 11 at the level of the uppermost arch 2 of the pile 4 whose pallet from a raised position gradually with the growth of the pile 4 is lowered. In principle, the strip feeder is applicable to any kind of stack of flat objects.

Claims (6)

Strip insert for marking defined blocks 6 stacked flat objects 2 in which, during stacking, by means of an arrangement reaching the pile 9 each on the last flat object of a block 6 a flat band 12 can be placed, advanced to the beat of the sheet sequence and with the help of an integrated cutting device 13 From the ribbon is separable, characterized in that the arrangement 9 a telescopic arm with a fixed guide rail 10 and a strip guide slidable segmentally in the longitudinal direction thereof 11 is, which is a partially covered feed chute 20 for that over a slip 17 supplied band 12 forms, and over the cross-slots provided in the segment spacing 21 under this single cover 23 is insertable. Apparatus according to claim 1, characterized in that the cover of the strip guide 11 in the area of each slot 21 in an inclined chamfer in the direction of the tape feed 22 ends for the front end of the band. Apparatus according to claim 1 and 2, characterized in that the strip guide 11 is slot-free in the front area and as a T-slot 24 is trained ( 3 ) to hold the ribbon securely in the guide. Apparatus according to claim 2, characterized in that the chamfer angle 22 30 ° ( 2 ). Device according to one of claims 1 to 4, characterized in that the skew 17 as a stationary channel just above the strip guide 11 ends and over a baffle 19 the beginning of the tape over an existing slot 21 in the feed chute 20 directs ( 2 + 4 ). Apparatus according to claim 5, characterized in that the inclination angle 17A of the skew 17 13 °.