DE2017471C3 - Device for erecting the bottom parts of folding box blanks - Google Patents

Description

For this 1 sheet of drawings

Claims (1)

For heavy cardboard types, the machine had to Claim: ^ speed can be reduced because the stiff Device in folding box gluing machines for folding box blanks
to straighten the front in the direction of movement early in its ineffective
lying bottom parts or the like on Faltschachtelzu- S In the current version Kannι acr ₇
cut with the help of a move into the path of movement when the front edge of the blank of the blanks protruding lever has reached the stop and Λη by seme characterized by that on the free further movement depresses, d. h the lever is, η the end of the locked in its effective position, its full usable length and its effective lever (4) overrun by the front edge of the close position before the path to completion cuts (1) displaceable stop (6 ) the initiated folding process is released. Since the fact that the movement of the lever (4) outwards the force required to press down the movement path of the blanks (1) is very small, both jamming and locking mechanisms (7,9,14) can be released. heavy cardboard boxes can be processed without disruption 15 den. ",. .,. , '- Another advantage is that the device on The invention is based on a known prior no working cycle and thus every device in folding box gluing machines can be set up when changing formats.
The following is the subject of the invention dent parts or the like on folding box blanks with 20. Hand of the Ausfuh-Hilfc shown in the drawing of a roughly example in the movement path of the blanks described,
1 to 4 show the individual movement phases In the manufacture of so-called folding bottoms of the lever. boxes, i.e. of folding boxes with a bottom The folding box blank 1, of a not Closing flaps that come when opening the box cross-25 pointed insertion station, is from the Banschnittes automatically form the bottom, are guided against the lever 4 in the 2 and 3. While Folding box gluer "special device - part of the conditions required to set up and fold the bottom parts of the folding box folding box blank 1 in the same moving stone. It is also known that level continues, the bottom flap 1 ' for erecting the one lying in front in the direction of movement by the rising surface 5 of the lever 4 To use bottom parts folding hooks that in ben and in the further course of the forward movement Movement plane of the folding boxes from above against the stop 6 of the pawl 7 transported. the or protrude from below. ■ by touching the front edge of the floor The movement control of the up and down closing flap Γ with the stop 6 (Fig. 2) results in folding hooks Must be done in time with the operation, 35 current force moves the pawl7 by the one in the lever4 so that the folding hooks into the pivot point 8 arranged between two cutting points under tension the gap and the leading edge of the compression spring9. the latch 7 from the effect of the Can reach under floor parts. Due to the area of the fixed ratchet stop 14 herdie is swiveled out at different throughput speeds. After the stop 6 of the and variable dimensions requires a pawl 7 from the leading edge of the bottom lock valve and intermittent movement control flap Γ has been displaced, this pushes itself the folding hook has a high drive and control leading edge on the hold-down device 10 (FIG. 3), technical Effort, which also rend at the same time the kink 1 "of the folding chess the necessary adjustability of the device blank 1 touches the surface S of the lever 4. different types and sizes of cut 45 due to the straight forward movement of the fold as well as at different working speeds box blank 1 moves the kink 1 "in is increased. the lever 4 around the pivot point 11 in a known manner When using the less complex He- out of the movement path. This will make the bels has been shown that this free from Faltschachtelzu- way under the hold-down, and the cut out of heavy cardboard or the like. The folding process initiated by the lever 4 of the is pressed without lifting the cut part to be erected, bottom closure flap 1 'can be completed, which the folding box blank 1 through the tapes! The invention is based on the object that and 3 are transported on. The bottom lock less complex lifting lever without a large flap Γ, which is lifted by the lever4 and To secure effort against premature evasion. 55 by the hold-down device 10 in its provisional end position According to the invention, this object is brought about by what is not shown solves that at the free end of in its effective bands and guide strips in the just eingenom position locked lever is fed through the front layer of a glue application device, Edge of the blanks 1 displaceable stop on- Has the folding box blank 1 with its in Begeordinated is that the rearward edge of a moving out of the lever 60 is the area Leaving the lever 4 from the path of movement of the blanks preventing this lever 4 through Lock releases. the tension spring 12 around the pivot point 11 back into the The advantages achieved with the invention consist of a gap between two folding box blanks in particular in that pivoted with the locked lever, the stop 13 the position of the Folding boxes of the most varied types of cardboard 65 levers determined and the compression spring loaded can be processed. While previously the un-latch 7 fixed the lever 4. The device has the Locked lever only for light to medium-weight starting position for the next folding box to cardboard types a trouble-free run is guaranteed again.