FR2471146A1 - APPARATUS FOR CROSS-CUTTING OBJECTS DURING THEIR ADVANCE, FOR EXAMPLE FOR CUTTING CIGARS BUTTS DURING THEIR PREPARATION - Google Patents

Abstract

TO CUT OR INCISE AN OBJECT SHAPED WITH A FILLING AND AN ENVELOPE SURROUNDING IT, A CIGAR FOR EXAMPLE, THIS APPARATUS INCLUDES A SUPPORT FOR THE OBJECT TO BE CUT AND AT LEAST ONE CUTTING ELEMENT HAVING A EDGE, WHICH CAN BE APPROACHED AND AWAY FROM THE SUPPORT. THE SUPPORT IS A CONVEYOR 11 AND THE CUTTING ELEMENTS 14 ARE MOVED IN SYNCHRONISM WITH THE CONVEYOR ON A DETERMINED COURSE B-A and in such a way that the EDGE 16 TURNS AT THE SAME TIME WITH RESPECT TO THE DIRECTION OF TRANSPORT P2.

Description

247114I

  The invention relates to an apparatus for cutting or incising an object formed by a filling and an envelope which surrounds it, for example a cigar, comprising a support for the object to be cut and at least one cutting element having a sharp, which can be approached and removed from the support. A device of this type is frequently used in the manufacture of cigars to cut the end to be put in the mouth of a cigar emerging from a rolling nest or to separate two cigars rolled together by their lighting ends. Usually cigars

  îO are stopped for a short time during cutting, so that the capa-

  city of the cutting device is relatively small.

  The invention aims to create an apparatus whose capacity

  is higher and can cut cigars without problems.

  According to an essential characteristic of the invention, the support is a conveyor and the cutting element is moved in synchronism with the conveyor over a determined path and such

  so that the cutting edge turns at the same time with respect to the direction

transport tion.

  Thanks to the rotation of the cutting edge, in a sensitive plane-

  parallel to the direction of transport, the object's envelope is effectively cut, which is important especially in the case of cigar wrappers, which are relatively resistant when

  they come from hearths rolled around the interiors.

  To prevent the backpressure to be exerted by the support on the object at the time of cutting from becoming too strong, a

  embodiment of the invention provides that each cut is made

  killed simultaneously by two cooperating cutting elements arranged one

opposite each other.

  A particularly simple embodiment is obtained when the cutting element or each cutting element is fixed to

a member driven in rotation.

  An effective cutting edge is obtained if it is given a V shape. Other characteristics and advantages of the invention

  will emerge more clearly from the following description of two

  nonlimiting example of embodiment, as well as of the appended drawing, in which: qt 4Ad44

  Figure 1 is a side elevational view of a pre-

  mier embodiment of an apparatus according to the invention; and Figure 2 is a side elevational view of a

  preferred embodiment of the invention.

  The device of Figure 1 consists mainly of a support 1 in the form of a chain conveyor driven in the direction of the arrow PI. This conveyor can be of any desired execution and is not part of the invention strictly speaking. The support surface of the conveyor 1 forms cells 2, each receiving

an object, especially a cigar.

  Above and below the conveyor 1 is installed each time a guide 3, along which is moved - in the direction of the arrow Pl - a flexible pulling member, a chain or a cable for example, to which are attached to regular intervals of

  cutting elements 4, each having a V-shaped cutting edge 5.

Each element 4 -is articulated at point 6 on the drawing member in the guide 3 above or below the conveyor 1 and its part opposite the cutting edge forms an arm 7, the free end of which carries a roller 8 rolling in a guide 9. There are two guides 9, one at the top and the other at the bottom, but which is not shown, it being understood that the shape and the guiding of the cutting elements 4

from the bottom are identical to those from the top.

  The shapes and curvatures of the guides 3 and 9 are mutually adapted so that, on a path designated in FIG. 1 by AB, each cutting edge 5 is not only moved in synchronism with the conveyor 1 in the direction of the arrow Pl but is also approached the conveyor and at the same time performs a

  rotation around the corresponding point 6 in guide 3.

  As a result, the point of contact between the cutting edge 5 and the periphery of the object to be cut is gradually moved along the periphery, so that the envelope of the object is cut in an increasing arc before the filling or the interior of the object is cut. This process is shown in Figure 1, showing the object schematically in different positions relative to

to the conveyor 1, as well as the two opposing cutting edges 5

  rent positions relative to the object. The hatched areas indicate

  how far the cutting edges have entered the object.

24 711 46

  Thanks to the V-shape of the cutting edges 5, the object is also incised simultaneously at four places around the axis of the object. At point A in Figure 1, the upper cutting edge and the lower cutting edge have approached so much that the object is

severed completely.

  Figure 2 shows a variant, the construction of which

is particularly simple compared to the example in Figure 1.

  The apparatus according to this variant also includes a

  support in the form of a conveyor 11 having cells 12 equi-

  distances. Each cell can receive an object V and the conveyor 11

  is moved in the direction of arrow P2, as in the example before-

  yield. The cutting elements 14 are in this case fixed on a

  rotary member in the form of a knife holder 15. There are two holders

knives, with three cutting elements 14 each. Each knife holder is rotated by a device (not shown) around the axis 17 and in the direction of the arrow P3. The speed of advance of the conveyor 11 is such that the cutting edge 16 of each cutting element 14 advances in synchronism with the conveyor 11 and further rotates relative to the direction of movement P2. In addition, the cutting edge 16 approaches the conveyor 11 during the rotation of the knife holder 15

and on course B-A.

  So when an object V is cut or incised.

  arrives at point B, the cutting edge 16 of one of the cutting elements 14

  of the knife holder 15 installed above the conveyor 11 and the tran

  edge 16 of one of the cutting elements 14 of the knife holder installed

  under the conveyor 11 simultaneously come into contact with the

external object lop V. During the continuation of the advance, the point of contact of each cutting edge with the object moves along the periphery of the envelope, so that the envelope is in this case also incised or cut gradually before, at point A,

  the cutting edges 16 of the two cutting elements 14 have not approached

so dear to each other that the entire section of the object V

is cut.

24 711 46

  It is obvious that the invention is not limited to

  examples of embodiments which have just been described and which

  pairings of the two embodiments described are also

  possible. For example, the cutting elements 14 can be articulated

  abutments on the knife holders 15. In addition, the cutting edges 5 and 16 may have shapes other than a V shape.

2471146.

R E V E N D I CA T I O N S

  1. Apparatus for cutting or incising an object formed by a filling and an envelope which surrounds it, for example a cigar, comprising a support for the object to be cut and at least one cutting element having a cutting edge, which can be approached and moved away from the support, characterized in that the support is a conveyor (1, 11) and the cutting element (4, 14) is moved in synchronism with the conveyor over a determined path (BA) and such so that the cutting edge (5, 16) rotates at the same time with respect to the direction of

transport (Pl, P2).

  2. Apparatus according to claim 1, characterized in that each cut or each incision is made simultaneously by two

  cooperating cutting elements (4, 14) arranged opposite one another.

  3. Apparatus according to claim 1 or 2, characterized in that the cutting element (4, 14) or each cutting element is

disposed on a member (15) driven in rotation.

  4. Apparatus according to any one of claims 1 to 3,

  characterized in that the cutting edge (5, 16) is V-shaped.