A process for the grouping of articles to article logs and grouping and packaging machine comprising such a device together with control of the product holding means

The present invention relates to a method for the formation of article logs from individual articles, in particular for bar packaging, wherein thunderstorms, preferably packaged products by a delivery device to an article rods forming means are transferred, in which a predetermined number of individual articles are grouped into a product rod and these articles rod to a transfer device is passed, wherein in response to a start of providing a predetermined, preferably variable number of individual articles and / or of a time period that is required for grouping the predetermined number of individual articles to an article rack, a plurality of article rod formers article rods forming means are driven for the grouping of the individual articles to an article rod and for transferring the article rod to the transfer device separately and independently. The invention further relates to a grouping device and a control device for product holding devices, in particular for a packaging machine for packaging small-size products, such as small-size confectionery, with a rotary head with a plurality of rotating with this terminal units, each terminal unit has a pair of clamping jaws and at least one control roller in contact with a having first cam for opening and closing movement of the Klermmbackenpaares, wherein a further means for initiating an arbitrary opening movement of the clamping jaw pair is provided.