DE3303714A1 - Apparatus for forming multi-layer blocks of rod-shaped articles in the tobacco processing industry - Google Patents

Abstract

A block-forming station (16) of a packing machine magazine (1) for rod-shaped smoking articles (3) which are transferred transversely to the axis via dropping shafts (9) into the block-forming station is assigned lateral orientation means (26, 27) whereby articles lying obliquely are aligned parallel to each other by subjecting the end faces of the articles to the action of a conveying component, in the direction of the block-forming station. <IMAGE>

Description

Stw .: PM-Maqazinschächte-Alignment-Brush-II -

Apparatus for forming multilayer blocks of rod-shaped articles of US Pat Tobacco Processing Industry The invention relates to an apparatus for forming multilayer blocks of rod-shaped articles of the tobacco processing industry for packaging purposes, with several opening into a block-forming station, feeding the articles transversely axially Fall chutes and with one the article periodically in the direction of their longitudinal axes ejecting from the block-forming station, one overhead guide and one each Return stroke executing ram.

In the case of the above-mentioned devices, in the area of the block-forming station, in which the articles to be packaged, such as cigarettes or filter cigarettes, in one be pre-formed according to the number of layers and articles per layer defined, from various causes to disturbances again and again, especially in the course The production speeds of modern high-performance packaging machines increased considerably over the years. One of these causes is, for example, the processing of filter cigarettes, their slightly thickened filter end when the articles slide down the chutes the article lags behind the end of the fire, or its filter end with an anti-slip one Covering paper is wrapped and leads to the same conveying disruptions. In both cases the filter cigarettes arriving at the block-forming station lie crooked. A Skewing of articles in the block-forming station can also occur during the Return stroke of the upper guide ram show which Stw .: PM magazine slots-alignment brush IC -firstly prevents the article from slipping at one end, causing them to tilt and stay crooked.

The invention is based on the object of designing the device so that a trouble-free way of working in the area of the block formation station in the formation and formations is guaranteed when the block-shaped article is ejected.

This object is achieved according to the invention in that the chutes in the area immediately adjacent to the block-forming station with alignment means one to act on the article at the front in the direction of the block-forming station Funding component are assigned.

In the case of packaging machine magazines, it is common to have the articles from several Pages forward to the block-forming station to reduce the time required to slide down and reduce the formation of the articles in the blocking station. To themselves possibly cumulative disturbance possibilities in the form of crooked ones Avoiding articles, provides an expedient embodiment that at the confluence two groups of chutes on opposite sides into the block forming station each group is provided with alignment means.

It is of course within the scope of the invention that also with Alignment means corresponding to each of these groups for more than two groups of chutes can be assigned.

Since when processing or packaging filter cigarettes in first and foremost the end of the filter in the chutes for the reasons mentioned above relative to the end of the fire Stw .: PM magazine slots-alignment brushes-If -the article tends to lag, it is useful if the alignment means at least a front end of the article are assigned. This front end can thus be the filter end be the article.

According to an additional proposal, the alignment means can also be assigned to the end of the article facing the ram, and this is preferred even when the filter end of the article is facing the plunger.

If necessary or if necessary, you can of course also do the two opposite article ends are acted upon by the alignment means, which accordingly differentiated according to the observed delivery disruptions delivery components can have different intensity.

In the case of particularly stubborn delivery problems, an inventive Design proved to be particularly advantageous, according to which the alignment means as bodies of revolution which act on the front ends of the articles with their circumferential surface are trained. These can either be placed as individual elements within each article assigned to the block-forming station or as all article layers arranged one above the other common element be formed.

When the article ends are particularly gentle and easy to grip Alignment means have been found according to a further development, which are designed as continuously drivable brush rollers.

For articles that are less prone to interference, have proved according to an expedient variant alignment means, which as blow nozzles are trained.

Stw .: PM magazine slots-alignment brushes-the one with the invention The advantage achieved is that at the latest immediately before ejecting a block-shaped article formation all in the block-forming station or in the block-forming station adjacent areas are aligned parallel to each other, so that in each case the filling of the block-forming station with the for each item layer predetermined number of articles and a trouble-free ejection of the article the block-forming station or their orderly routing in pockets of a packaging conveyor or the like are guaranteed.

Stw. PM-Magazinschächte-Ausrichtbursten-IE The invention is described in the following on the basis of a drawing showing different exemplary embodiments explained.

Here, FIG. 1 shows a front view of a block forming device with partially shown, connected via feed channels with a block-forming station Storage funnel, Figure 2 is a partial plan view of the device in the area of Block diagram station and FIG. 3 shows a variant of the device according to the invention. Stw .: PM-Maqazinschä.chte-Ausrichtbürsten-It -The block forming device has one according to Figure 1 partially shown storage hopper 1, which in its lower Area is provided with a separating bridge 2, which the storage hopper 1 in two compartments 4 and 6 filled with filter cigarettes 3. The sections 4 and 6 of the storage hopper 1 go in two groups 7 and 8 as drop shafts 9 trained feed channels. The chutes 9 are through shaft walls 11 limited, reciprocable at their upper ends in their inlet area Corrugated vibrating rollers 12 are rotatably mounted, the axes of which are parallel to the axes of the filter cigarettes 3 extend.

The vibrating rollers 12 are in the departments 4 and 6 in front and are alternately drivable in opposite directions to prevent the filter cigarettes 3 form bridges or that the filter cigarettes 3 angled or Enter the chutes 9 in twos at once.

The shaft walls 11 have an adaptation in their inlet area to the vibrating rollers 12 a greater wall thickness, whereby it increases towards the bottom taper and merge into thin walls, preferably made of sheet metal. The drop shafts 9, like the storage hopper 1, are shown in FIG. 2 by a front wall 13 and a rear wall 14 completed. The two groups 7 and 8 of Fall Schächten 9 connect the storage hopper 1 to a block-forming station 16, the easy inclined chutes 9 gradually bend and converge in alignment Pass formation into horizontal blocking channels 17. The one shown in Figure 1 Device is suitable, in the block-forming station 16, three superimposed Filter cigarette layers -18, 19 and 21, which form a cigarette block, the Stw .: PM-Maqazinschächte-Alignment-Brush-It -in the upper one Layer or row 18 seven, in the middle layer 19 six and in the lower layer 21 again has seven filter cigarettes 3. The ones that form a cigarette block Filter cigarettes are shown hatched, the one in the exemplary embodiment illustrated cigarette block as filling for a standard seven-six-seven cigarette pack can serve.

There is a pusher on the back of the block-forming station 16 or plunger 22, which in a known manner in the direction of double arrow 23 by means a crank mechanism, not shown, can be moved back and forth, and which with three of the individual filter cigarette layers 18, 19 and 21 to be pushed out are assigned Extending fingers is provided.

In the laterally directly adjacent to the block-forming station 16 Areas, the rear wall 14 of the case shafts 9 is provided with recesses 24, in which alignment means in the form of brush rollers 26 and 27 are immersed. The brush rollers 27 are continuously driven in the direction of arrows 28 and 29, so that they with their respective, the end faces of the filter ends of the filter cigarettes 3 facing Circumferential section act on the end faces and with a conveying component in To move towards the block-forming station 16, so as to previously leaning Filter cigarettes 3 to give a parallel orientation.

In the variant shown in Figure 3, instead of the brush rollers Alignment means in the form of blow nozzles 131 are provided, which at a shallow angle of attack passed through the rear wall 14 with respect to the end faces of the filter cigarettes 103 on each side of the block forming station 116 for each filter cigarette layer a blow nozzle 131 is provided. It should be mentioned that the blow nozzles 131 periodically Stw .: PM magazine slots-alignment brushes-IF -disch can be pressurized with blown air, for example, as a function of the tappet cycle of the tappet 122 by after each Return stroke of the same a blown air pulse on the end faces of the filter cigarettes 3 is given.

Claims (7)

Stw .: PM magazine slots-alignment brushes-IL -patent claims ~ ~ ~ ~ ~ ~ ~ 1. Apparatus for forming multilayered blocks of rod-shaped articles of the Tobacco processing industry for packaging purposes, with several in a block-forming station opening chutes that feed the articles transversely axially as well as with a die Periodically ejecting articles in the direction of their longitudinal axes from the block-forming station, in each case one upper guide stroke and one return stroke executing ram, characterized in that, that the chutes (9; 109) directly to the block forming station (16; 116) adjoining area alignment means (26, 27; 131) with one of the articles (3; 103) conveying component to be acted upon at the front in the direction of the block-forming station assigned. 2. Apparatus according to claim 1, characterized in that the Confluence of two groups (7, 8) of chutes (9) on opposite sides in the block-forming station (16) each group is provided with alignment means (26 or 27) is. 3. Device according to claim 1 and / or 2, characterized in that that the alignment means (26, 27) are assigned to at least one end of the article (3) are. 4. Device according to one or more of claims 1 to 3, characterized characterized in that the alignment means (26, 27) facing the ram (22) Front end of the article (3) are assigned. Stw .: PM magazine slots-alignment brush ID -5. Device according to one or more of Claims 1 to 4, characterized in that the alignment means than the ends of the article (3) with their circumferential surface acting on the body of revolution (26, 27) are formed. 6. Apparatus according to claim 5, characterized in that the alignment means are designed as continuously drivable brush rollers (26, 27). 7. Device according to one or more of claims 1 to 4, characterized characterized in that the alignment means are designed as blow nozzles (131).