DE1864528U - DEVICE FOR RELIEF OF A FEED DEVICE, IN PARTICULAR A DIVISIONAL FEED DEVICE FOR PUNCHED STRIPS. - Google Patents

Description

PX210 577 * 3/27/62

Siemens &. Halske Müröien 2, 2 7.MRZ196 2 '

Aktiengesellschaft Witteisbacherplatz 2

'6 2/2243

Device for relieving the burden of a hole in the hole, especially for punched strips .; .'-; -. / ,.; ; ;.; :? - _: ~ ■

The innovation relates to a device for relieving a feed device for perforated strips, tapes and the like, in particular for such. Execution that the for the.;. Step-by-step: Xoching of a Loohstripe that determines the division. thrust mechanism relieved ». . . r-

. When perforating or scanning a perforated strip, the step-by-step feed device is unevenly loaded depending on the size of the paper supply when the strip is withdrawn from the supply roll can ». ■.:.. ■■. * ■■.", / ^:

- To relieve the feed device, the so-called loop striker is used in most cases, which only fulfills its task in that the force "to form loops" causes a reaction to the strip secured against the backward movement by the feed temperature and stretches the strip more or less p and _: thus distorts the shape of the feed _{hole o} Other already known feed _{relief devices work satisfactorily, a} .,. but with great effort =: ;; "■ -. ■■ -:, · ^: ■. ■ \. : '; :: ·

The hiring is based on the task, these: Defects: to remedy »■■ / ■; ■■. ■ "■■■■ ', Χ: ■:' ■ / - ^-:.;: ■; '; /, ■■ _^-:;: ■■' - ■ '■ ■■: ..-. '\ L: ^{_;: y} * ■:;: .- ;: ^:: ;;.' _■: -.

This is achieved according to the fire in that two opposite, lying / Ba Ck en .in a guide> in the Streif env / eg parallel to the jaw surfaces: together longitudinally displaceable and at least one jaw, in addition, perpendicular to the jaw surfaces in a sliding block opposite a spring force displaceable and an eccentric as a drive of the device / in: an elongated hole in the jaw is mounted, and that the elongated hole in this jaw is designed in this way _? that the jaws are closed by the spring force when moving in the direction of the strip and by the eccentric when moving against the direction of the strip.

PA 9/411/622 -. - 3 -

Are open; this results in a completely draft-free patrol route division-determining. Feed device guaranteedό .- _

After further training the innovation is the. _{Exzentriaitst:} the eccentric by a few tenths of a millimeter larger than the required half a feed length for the strip "In this way affects a possibly occurring, low slip between AEEN. Baking the Vosssehubentlastungseinrichtung not disadvantageous. ν ■: / \. ^: '; : -

According to a preferred embodiment of the innovation, a soft leather is arranged in front of the feed means discharge in the region of the strip, so that they in advance _of: strip by the advancing means wird- tensioned and. after _opening: the Backen.das ■ delivered surplus strip piece withdraws ° " _':: ^-:'-;..

Details: The innovation is explained below using the drawing = ■■■: ■■ - ._ - ... i _: '' ·:. V. ■ '_ <■ - "" . -

Here is ■ ■ "" ■ "■ .-- ■ ^·;: -"'j;. _ \ '■ .; ^: . ; ^: \; ■■ .... / ^ figol a schematic view of the feed relief device

- ■. '^ _{Direction:...';} ■■ _-:. .. .V ^-; · ■ '' ■ 'Pigo2 the jaw movement: 4es driven by the eccentric ..

According to FIG. 1, there are ³¹ jaws T perpendicular to the plane of the streak. fens 2 leading sliding block ? and a jaw 4 in a housing 5 parallel to the plane of the strip 2 mounted so as to be longitudinally displaceable _o

PA 9/411/622 -A-

An eccentric 6 is so 'arranged' in an elongated hole 7 of the jaw 1 and two springs 8 act on the jaw 1 in such a way that the two jaws 1, 4 together continuously parallel to the S-strip plane back and forth and the jaws 1 relative to the jaws 4 in the sliding block 3 are only moved during half a revolution of the eccentric shaft ₅ so that the jaws 1; 4 Clamp the strip 2 to push it forwards, or release it to make the backward movement. The eccentricity of the eccentric 6 is chosen to be so large that the strip is advanced by the auxiliary feed device by 1.2 to 1.5 times the feed rate by the actual pitch-determining feed device 9 '= in this way an approximately occurring smaller effect has an effect There is no disadvantageous slip between the jaws 1, 4, which also have a rubber pad. Between the feed relief device and the strip supply roll, not shown, a soft return spring 10 is arranged in the area of the strip 2, which is ^{tensioned by a pin 11 acting on the strip during 1} 'transport of the strip, and which, when the strip is released by the feed relief device, removes the excessively conveyed piece of strip withdraws again = the paper loop 12, which is formed with each feed movement by the too large feed path necessary for the reasons already described, is thus dismantled again after each feed =

In Fig = 2 the course of movement of the jaw 1 is shown. “It is made sure that at the beginning of the backward movement ;; the

PA 9/411/622 - 5 -

Bake both jaws have already opened sufficiently and that they no longer clamp the strip at this point = Von Point 21 to point 22 the jaws are closed and the strip is advanced., At point 22, the jaws 1, 4 begin to close open and in point 21 clamp the strip 2 again »

3 claims for protection
2 figures

Claims (1)

PA 9/411/622 - 6 - Protection claims 1. Device for relieving a feed device, in particular a division-determining feed device for ■ perforated strips, characterized in that two opposite Jaws (1, 4) in a housing 5 in the strip path parallel to the strip plane mutually longitudinally displaceable and at least one Jaws (1) - in addition perpendicular to the stripe plane in a sliding block (3) against a spring force and displaceable. Eccentric (6) as the drive of the device is mounted in an 'elongated hole (7) of the jaw (1), and that the elongated hole (7) is in the jaw (1) is designed so that the jaws (1,4) when moving. ■ closed by the eccentric (6) in the direction of the strip by spring force and when moving against the direction of the strip are opened by the eccentric (6). ο Device according to claim 1, 'characterized in that the double eccentricity of the eccentric (6) to the required feed path length behaves like 1: 1.2 to 1: 1.5. 3ο device according to claim 2, characterized in that a spring (10) is arranged in front of the feed relief device in the area of the strip (2) so that it can be tensioned during feed by the feed relief device and after opening the jaws (1,4) the too much conveyed Piece of strip withdraws _o