19-04-2017, 11:43 AM
Many manufacturers of wrapped cartons or fancy covers used for packaging sweets, cakes and other confections, cosmetics and other items are equipped with so-called fortnightly machines by means of which a blank box is folded or box-shaped . These assembly boxes are transferred by means of a conveyor to an operator, who picks up the boxes and places them and centers them in wrappings with which the boxes are to be covered. The cartons and wraps are then transported to a wrapping machine of the carton where the wrap is folded about and glued to the carton. Normally, the operation of the wrapping machine is controlled by means of a switch operated by the box forming machine so that its operating speeds are related to each other.
Fully automatic machines are available for placing the boxes, placing them in the wrappings and feeding the whole to the wrapping machine. In many cases, however, the cost of replacing semiautomatic machines with fully automatic machines is so great that it can not be justified by the higher production rate possible with automatic machines.
The main difference in the speed of operation of fully automatic machines and semiautomatic machines lies in the human factor, namely the operator or feeder of the semi-automatic wrapping machine. It requires considerable manual dexterity and skill to collect the boxes and precisely center them in the wrappers as they move past the operator's station. The movements of the operator also depend on the position of the mounting boxes relative to the operator. With the usual conveyor arrangement, it is necessary for the operator to reach through the conveyor that feeds the wrapping machine and pick up a carton from the conveyor leading from the quad. As. The operator must reach through the conveyor to collect the boxes, the speed of the operator is decreased. In addition, the constant reach and stretching of the cartons is very stressful, so that the operator can only work for a relatively short period of time. This requires the service of another operator or the closing of the machines.
Fully automatic machines are available for placing the boxes, placing them in the wrappings and feeding the whole to the wrapping machine. In many cases, however, the cost of replacing semiautomatic machines with fully automatic machines is so great that it can not be justified by the higher production rate possible with automatic machines.
The main difference in the speed of operation of fully automatic machines and semiautomatic machines lies in the human factor, namely the operator or feeder of the semi-automatic wrapping machine. It requires considerable manual dexterity and skill to collect the boxes and precisely center them in the wrappers as they move past the operator's station. The movements of the operator also depend on the position of the mounting boxes relative to the operator. With the usual conveyor arrangement, it is necessary for the operator to reach through the conveyor that feeds the wrapping machine and pick up a carton from the conveyor leading from the quad. As. The operator must reach through the conveyor to collect the boxes, the speed of the operator is decreased. In addition, the constant reach and stretching of the cartons is very stressful, so that the operator can only work for a relatively short period of time. This requires the service of another operator or the closing of the machines.