DE78189C

DE78189C - Method and device for the production of boxes from cardboard, leather and the like by means of endless sheet metal clip strips

Info

Publication number: DE78189C
Application number: DENDAT78189D
Authority: DE
Original assignee: A. DAVID, Budapest III, Lajos-utcza 4
Publication date: 1900-01-01

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

KLASSE 54: Papiererzeugnisse.CLASS 54: Paper products.

ADALBERT DAVID in BUDAPEST.ADALBERT DAVID in BUDAPEST.

mittels endloser Blechklammerstreifen.by means of endless sheet metal clip strips.

Patentirt im Deutschen Reiche vom 5. Mai 1894 ab.Patented in the German Empire on May 5, 1894.

Den Gegenstand vorliegender Erfindung bildet ein Verfahren und die dazu nöthigen Vorrichtungen zur Herstellung von Schachteln aus Pappe, Leder und dergl. mittelst endloser Blechklammerstreifen.The subject matter of the present invention is a method and the devices necessary for it for the production of boxes from cardboard, leather and the like Sheet metal clip strips.

Das Verfahren besteht darin, dafs der zugeschnittene Pappkasten in einer geeigneten Prefsvorrichtung gebogen und zusammengefügt wird , währenddessen vier in Rollen aufgewickelte endlose Klammerstreifen durch eine Zuführvorrichtung in ihrer Längsrichtung winklig zusammengebogen und vor die Ecken des Kastens geführt werden. Sobald jetzt der Prefsstempel die volle Tiefe des Kastens ausgefüllt hat, schnellen vier durch Federn beeinflufste und zeitweise zurückgezogene Hammer vor, welche den Kastenecken entsprechend geformte Bahnen haben, schneiden dabei mit ihren scharfen Kanten die Klammerstreifen in entsprechender Länge ab und treiben die Zahnspitzen derselben gleichzeitig in den Kasten ein, wodurch die feste Verbindung der Ecken hergestellt wird. Hierauf wird durch weiteres Fortbewegen des Stempels der fertige Kasten aus der Form herausgedrückt, von wo er auf geeigneten Transportvorrichtungen weiter befördert wird.The procedure consists in making the cut Cardboard box is bent and put together in a suitable pressing device, while four are wound up in rolls endless staple strips bent together at an angle in their longitudinal direction by a feed device and in front of the corners of the box. As soon as the pre-press stamp has now filled the full depth of the box has, four spring-influenced and temporarily withdrawn hammers go fast before, which have tracks shaped accordingly to the box corners, cut with it their sharp edges remove the staple strips in a corresponding length and drive the tips of the teeth the same into the box at the same time, whereby the firm connection of the corners will be produced. The finished box is then created by moving the stamp further pushed out of the mold, from where it is transported on suitable transport devices will.

Die Vorrichtung ist in Fig. 1 bis 5 dargestellt und sind Fig. 1 und 5 senkrecht zu einander stehende Verticalschnitte, während Fig. 2 ein Grundrifs mit theilweisem Schnitt des ganzen Apparates ist und Fig. 3 und 4 die Transportvorrichtung für die Klammerstreifen zeigen.The device is shown in Figs and FIGS. 1 and 5 are vertical sections perpendicular to one another, while Fig. 2 is a plan in partial section of the whole apparatus, and Figs. 3 and 4 show the transport device for the clip strips.

Die Vorrichtung besteht nun aus einer Grundplatte A, über welcher sich, auf den Seitenwänden B ruhend, die Tischplatte C befindet. In dieser Tischplatte, sowie in zwei Traversen B¹ sind zwei Stangen F geführt, welche oben eine Traverse E mit Prefsstempel D und unten eine Traverse G mit Druckrolle g tragen. Das ganze bewegliche System wird durch zwei Federn, welche einerseits sich gegen die Traversen J3¹, andererseits gegen Bunde/¹ stützen, getragen und, wenn keine äufsere Kraft auf dasselbe wirkt, in seiner obersten' Stellung, gehalten. In der Tischplatte befindet sich ein Ausschnitt C¹, welcher der äufseren Form des herzustellenden Kastens entspricht und unten durch . einen um d schwingenden, durch Feder b gehaltenen Boden α geschlossen ist. Der Deutlichkeit wegen ist in der so hergestellten Form der fertig zusammengebogene Kasten e eingezeichnet, während sich der Stempel in seiner höchsten Stellung befindet.The device now consists of a base plate A, over which, resting on the side walls B , the table top C is located. In this table top, as well as in two traverses B ¹ , two rods F are guided, which at the top carry a traverse E with a prefix D and at the bottom a traverse G with a pressure roller g. The whole movable system is supported by two springs, which are supported on the one hand against the crossbars J3 ¹ and on the other hand against collars / ¹ and, if no external force acts on it, held in its uppermost position. In the table top there is a cutout C ¹ , which corresponds to the outer shape of the box to be produced and through the bottom. a bottom α , which oscillates around d and is held by spring b , is closed. For the sake of clarity, the finished bent box e is shown in the shape thus produced, while the punch is in its highest position.

Die Bewegung des Stempels erfolgt nun von einer Welle H aus, welche auf der Grundplatte bei h h gelagert ist und eine Curvenscheibe J trägt, gegen welche sich die Druckrolle g legt. Die eigentümliche Form dieser Curvenscheibe ruft eine Bewegung hervor, dafs, wenn der Prefsstempel die Form ausfüllt, ein kurzer Stillstand in der Verticalbewegung eintritt, so dafs während dieser Zeit die Hämmer L in Thätigkeit treten können. Diese Hämmer, welche durch Federn N paarweise mit einander verbunden sind, schwingen um ihr unteres Ende, welches in der GrundplatteThe ram is now moved from a shaft H , which is mounted on the base plate at hh and carries a cam J , against which the pressure roller g rests. The peculiar shape of this cam causes a movement so that, when the die fills the shape, the vertical movement comes to a standstill for a short time, so that during this time the hammers L can come into action. These hammers, which are connected in pairs by springs N , swing around their lower end, which is in the base plate

Claims

is mounted, and carry pressure rollers M at the level of the shaft H , with which they, driven by the springs, lie against thumb disks K, which also sit on shaft H. The angularly shaped tracks L ^{1 of} these hammers touch the corners of the box at their furthest inward deflection and are sharp-edged at their lower edge so that they have cutouts i with plates k, which lie at the corners of the shapes and the bracket shape , act like scissors, so that the staple strip that has passed through cut-out i is cut off when the hammers snap forward. The thumbs of the disks are in such a position to each other and to the cam that the hammers snap forward at the same time, namely at the moment when the mentioned standstill in the descent of the punch D has occurred. The staple strips are supplied by apparatus which are attached at P and which are particularly illustrated by FIGS. 3 and 4. FIG. These consist of a firmly mounted roll / and a movably mounted roll m , pressed against the former by spring pressure, of such a profile that the band-shaped staple strip passed between them emerges at an angle and is ready to be stapled. The roller I is connected to a ratchet wheel η in such a way that the pawl 0 only allows rotation in one direction, ie when the staple strip moves upwards, thus preventing the strip from going backwards. A second pawl ρ, which likewise engages ratchet η, but f is attached to the coil spring, so f while braking of the forming die D having spring together makes a downward movement occasioned the feed of the strip O. It is therefore at jedesmaligem descending walking of the punch a such piece of the clip strip is bent and lifted over the scissors edge of the plate k than is necessary to form the box corners. Of course, there is a special feed device for each of the hammers, i.e. for each corner of the box. A feed channel Q for the cardboard pieces cut out and a channel i? for the removal of the finished boxes, which have been removed from the mold, serve to convey the material as well as the finished work pieces.

Sponsorship τ claims:

ι. Process for the production of boxes from cardboard and similar material by means of endless clip strips, characterized in that the cut box material bent in a molding press and then on all four edges at the same time by hammers moved with the thumb Sheet metal clip strip is fogged, 'where;

a) the hammers, at the same time with a scissor-like edge against a corresponding one Working part of the form, the required pieces of the endless Cut off strips, and

b) a feeding device for each hammer, by means of a pawl is actuated from the moving parts of the machine and by suitably profiling its transport rollers the clip strips are bent at an angle in the longitudinal direction.

2. Device for carrying out the under 1. characterized process, consisting of a Prefsrahmen with a hinged bottom closed form, one by thumb disk and springs from a drive shaft Moving die for bending the box parts and the outside of the finished boxes, as well as one of the number of corners of the box corresponding number of seated on the same drive shaft Thumb washers and springs operated hammers, the shape of which corresponds to the shape of the corner, below scissor-like sharpened paths in connection with the lower part of the mold when jumping forward, the ones that are pre-bent and advanced by the transport device Cut off endless strips of staples in a suitable length and attach to the corners of the box, and finally off there are just as many feeding devices as there are hammers, each consisting of a fixed one and one movable against it The pressure roller mounted and pressed on by spring pressure has such a profile that the ones passed between them Staple strips are bent angularly in their longitudinal direction, while the drive means on the shaft the fixed pressure roller seated ratchet wheel and in this engaging fixed pawl and loose pawl mounted on the moving parts.

1 sheet of drawings.