DE7534013U - DEVICE FOR FOLDING THE LAPS AND BARS OF BOX CUT-OUTS, HINGED TRANSVERSE TO THE CONVEYOR DIRECTION - Google Patents

Description

PATENT ADVERTISERS ■ '' ι dipping. ALEX STENGER

D-4000 DÜSSELDORF 1 DIPL.-ING. WOLFRAM WATZKE

Malkastenstrasse 2 DIPL.-ING. HEINZ J. RING

Our reference: l6 257 ^Dahun: 23-Oct. 1975

Guschky & Tönnesyrann KG, 4ooo Düsseldorf-Reisholz, Herkelstr. 243

Device for folding over the flaps and webs of box blanks that are hinged transversely to the conveying direction

The invention relates to a device for folding over the tabs and webs hinged transversely to the conveying direction from in time moving box blanks through a box making machine, especially of erect boxes with two, four or Hexagon bonding.

Devices are already known for folding over the flaps and bars, which are hinged transversely to the conveying direction, of box blanks moved in a cycle through a box manufacturing machine, which with the folding of the flaps or bars at the front in the conveying direction cause the erecting hooks and the folding of the flaps or bars at the rear in the conveying direction. webs effecting überholfalthaken are provided below the T _r ansportebene the blanks are arranged and cooperate respectively for folding the flaps vollstfindigen bzw.Stege with fixed folding switches.

In these known devices, there are so-called "altscheiben which are ertsprecnenden with a number on the periphery of the disc-fait distributed to teach hook bzw.Überholfalthaicen provided. The Faltscheibe sitting on a constantly rotating ^lp te r i -'- has complicated gear, to ο the erecting hooks or overtaking folding hooks at the specified time in the transport level of the blanks; u swivel, with complicated movement sequences being adhered to with regard to their acceleration or deceleration.

Tlltfoa (02U) MMl «· TdMMMMdniMi Dftbiplttnt · Poitidildtkonlo KBln XSt 10 IMU <Ttlt | rinvm »dr« »iti Dtbipkttnt

7534013 15.9176

The 'rfindung is an object of the invention to provide a device for folding the transversely bevipten to the conveying direction the hinged flap and Ste ~ e before i- ^ clock by a · ¹ Jchaohtelherstellungsmaschine box blanks which is opposite to the well-known ^v altsche1ben a considerably simpler structure and Bev .-egur. ^ the flow of the individual components.

The ^r , üsur. £ of this task by the invention is daourch! -'- indicates that each erecting hook is driven by a gear to rre: - that is synchronous with the drives of the overtaking hook of the insert and the transport elements for the blanks is working.

In v; another "erknal of the invention is that, every lifting hook · is pivotable by means of a cam lever actuated by a cam, the cam lever according to the invention of a roller rolling on the cam against the force of a pressure spring pivotable and by a Chain or the like. connected to the lifting hook. In the end v; is proposed with the ..invention to use the cam to drive a chain drive.

According to a v / ^M Eiteren erkmal the invention, each Überholfalthaken rotatably supported UNR or the like at a predetermined time from a standstill by means of a transmission chain. operable. In a preferred embodiment of the "invention, two overtaking folding hooks are arranged on a 'each.

With the "invention" a device for folding the transverse Flaps and webs hinged to the conveying direction from in tact Created box blanks moved by a box manufacturing machine, which have a simple structure and an uncomplicated Has movement sequence, so that the device is manufactured inexpensively and set and maintained in a simple manner The folding of both the front in the conveying direction

7534013 is.it.7S

as well as the lobes lying at the rear in the conveying direction or webs happen at the same point within the box manufacturing machine, so that the erfindungsge ^ KÖe device has a slight rteu ^ beoari '. If several inventions are necessary Devices are arranged one behind the other in the direction of flow within the box manufacturing machine, they can auT can be easily connected by chains.

The drawing shows an example of the embodiment according to the invention Device shown schematically, namely show:

Fig. 1 is a side view of the device according to the invention in a position in which the web of a box blank which is at the front in the conveying direction is folded over,

Fig. 2 is a partial side view of the device according to Fig.l in a position in which the web of a box blank that is at the rear in the conveying direction is folded over,

Fig. 3 is a plan view of a box blank, whose in Conveying direction the web lying in front has been folded back and

Fig. 4 is a plan view of the box blank according to Figo * after the web located at the rear in the conveying direction has also been folded over.

The shown in Fig.l and 2 schematically in a side view Device has a lifting hook 1 and two Overtaking folding hooks 2, each of which interacts with a fixed folding switch 3. During the erecting hook 1 and the overtaking hook 2 are arranged below the transport plane marked with the reference number 4 of the box blanks the folding switch 3 is above this transport level 4.

An exemplary embodiment of the box blanks to be folded on the device is shown in FIGS. These figures show a carton blank * 5 whose front ridge 5a according Pig.l is folded in cooperation with the fixed Faltweiehe 3 rearwards by means of the Aufriehtehakens 1 and its

7534013 15.6476

_ 4 -

rear web 5b by means of one of the overhaul folding hooks 2 ge ^ äß '1g. "r ^s Ό <? ίο (> ^ι ."'] lr are triangular lobes η er webs 5fi or 5b y.vri \ <:,;<- (-: \ γ * Λ ¹ ;'>., like let the i-'is ·; 'u "d 4 recognize this.

: ie in the; ^v ig.l and P dnrrres. '= 1 Ite. "orrichtur.r> a ~~ nncns ^{Λ r} ' ^r -rv

use '.; worder, r "ie anterior larps 5c as well as back ··· ^T arnr> - ', <■■■

of the box ^{blank ^ 5 "1} It den Aufricr '■ shaken 1 u ⁿ ''· * r,!''bt-r-

wooden sharks ?. corresponding Haker ir ⁷ usa. "^ e ^vi a -arbeit with standing hold-down devices to fold over.

! ■ 'ie from the representation in Fig.l emerges, is ·. the erecting hook 1 swivellably reels ^ ert on a shaft. ^r r becomes z * at the specified point in time in the transport level ■ · de · ¹ box blank ?; 5 is pivoted, to which it is connected through a chain 6 with a cam follower roller whose lever 7 8 -rollt on a cam 9 ^ret. The chain 6 runs over sprockets 6a and 6b, which are attached to these parts concentrically to the pivot axis of the erecting hook 1 or curve lever 7. In this way, pivoting the cam lever 7 results in a corresponding pivoting of the erecting hook 1 To ensure the contact of the feeler roller 8 on the cam 9, the cam lever 7 is loaded by a pressure spring Io.

The cam 9 is driven, for example, by a chain drive 11 driven. A ^ standstill gear IJ, which has a V / angular gear 12 works synchronously with the drives, not shown, of the inserter and the transport elements of the box-making machine, acts on a chain 14 which is connected to the drive shaft of the overtaking folding hook P via a chain wheel 14a is in the cycle of the box manufacturing machine both a ^ pivoting movement des Aufrichtahak ^ is 1 as well as eir.e in paragraphs Rotational movement of the overtaking fold hook 2 achieved.

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.. ■ orrlr i'e ".or;" - ~;: t <"g 5 * r ^ s. 'box blank 5 die FaIt- ■ csi" .ic rr ^ ir. has the Ku ^ venhebel 7 is pivoted, as the • / erti. fnng · the · nrvenscheibe ° below the Tasti "..> lle 8 passes i ',' errchwei.Kun / i r '" S r.urvenhebels 7 is about the sprockets

]; ■ 'τ ure "-'ic,; ■ ·', l, · * 'on the roller of the erecting hook 1 ■" ■ ν. · -' ■■ -p.i'i '- ru "ües · .'Οίε ':' avs your ■■■ 'shown in 7ig.2. ■: ■■. · ■■].] \ ^ Ri: - ("if .. ·: ir; c position according to Fig. 1 .In viesor,, 'Iu-, ■ Irr ("i.-r vorcVrr-;' teg 5a des i ^v i dor transport level 4 ■ · ■ · - '-'. /." OrIv ·. .'Ic ', half-cut b raised. Immediately after, · .c; ... · ^ A ~ 'heb'-n' -, 'earth egg? Au! straightening hook 1 again under f ie ζ' r ^r "sp ^ - 't'- 'be-ne ■> vorschv.'enk't, u ^m the box blank 5 at

-i ^r , - from left to rieh to beliinderr. The fixed folding switch -, 'Vr ¹ C' at '"f-'it --- rleuf of the box blank 5 achieves that. ■ I Ot. ■■ · front, .'teg 5a completely covers and in this 7 ur - '.' cl: i ^. laid 3t> llung is held. The box blank ■: rh "lt pul 'these', 'eise the shape drawn in Fig .;)" lit solid lines.

As soon as the box blank 5 continues to run, its rear web 5b comes into the area of the device described above, this is lifted according to FIG. 1 by the rotating overhaul folding hook 2. In doing so, it overtakes the crease line of the box attachment, which is at the rear in the conveying direction, and is folded forwards as shown in FIG Gear I ^ - are in order to avoid damage to the box blank 5. In this position shown in FIG. 2, the box blank 5 can run out under the overtaking folding hook 2 in the conveying direction, the folding switch 3 in turn ensuring that the rear web 5b is held in its forwardly folded position .

Reference number list:

Lifting hook

2 Overtaking folding hook ~ Folding switch 4th Tran sport level VJl Box cut 5a Front bridge 5b Rear bridge 5c Anterior lobe 5 <~ Posterior lobe 6th advised 6a Sprocket 6b Sprocket 7th Cam lever 8th Feeler roller 9 Cam disc Io Pressure spring 11th Chain drive 12th '■' angular gear 13th Standstill gear 14th Chain 14a Sprocket

Claims (6)

1. A device for folding over the flaps and webs hinged transversely to the conveyor belt of flat blanks, in particular of erect boxes with two-, four- or hexagonal gluing, with the folding of the flaps that are at the front in Ford direction or Raising hooks causing webs and the folding of the flaps or webs at the rear in the forward direction, which are arranged below the transport level of the blanks and each work together to completely fold the tabs or webs with fixed folding switches, characterized in that each straightening hook (1 ) is driven by a gear (13) which works synchronously with the drives of the overhaul folding hooks (2), the insert and the transport elements for the Schachtelzuschni ^u te (5). 2. Device np.c'i claim 1, characterized in that each Erecting hook (1; can be pivoted by means of a cam lever (7) actuated by a cam disk (9). 3. Device according to claims 1 and 2, characterized in that the cam lever (7) can be pivoted by a feeler roller (δ) rolling on the cam disc (Q) against the force of a pressure spring (lo) and is supported by a chain (6) or. like ™ it is connected to the lifting hook (I) . 4. Device according to claims 1 to ', characterized in that the cam disk (Q) is driven by a pinene chain drive! Ί1Ί is. 5. Device according to claims 1 Ms 4, characterized gci .'_ nn? .Eichnet that each overtaking folding hook ^f 2) is rotatably mounted and at a predetermined point in time vo- a standstill gear by means of a chain (14) or the like . 6. Device according to claims 1 to 5, characterized in that two overtaking folding hooks (2) are arranged on a shaft. W / br 7534013 15.0476