Process for attaching drinking straws to packaging containers and apparatus for carrying out the process
First Claim
1. A process for attaching drinking straws to packaging containers, comprisingtransporting the containers by a first conveyor having first driving means,transporting the drinking straws by a second conveyor having second driving means,entering the containers and the drinking straws into a fastening device for attaching individual drinking straws to individual containers at a controllable moment,defining said moment by a method selected from the group consisting ofdetermining the position and the transporting speed of said individual containers before entering into said fastening device,and determining the relative position of said individual containers in relation to said first conveyor, andattaching said individual drinking straws to said individual containers at the moment defined before.
1 Assignment
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Accused Products
Abstract
When drinking straws are fastened to packs, it is particularly difficult to press the drinking straws precisely onto glue spots previously applied to the packs. For this purpose, it is proposed to determine the position of the packs on their conveyor and then actuate the glue applicator device or a press-on means for drinking straws when this point of the conveyor has been reached and consequently the pack has arrived in front of the glue applicator device or the straw press-on means. Alternatively, the control is determined by measuring the position and speed of the particular pack to be processed.
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Citations
11 Claims
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1. A process for attaching drinking straws to packaging containers, comprising
transporting the containers by a first conveyor having first driving means, transporting the drinking straws by a second conveyor having second driving means, entering the containers and the drinking straws into a fastening device for attaching individual drinking straws to individual containers at a controllable moment, defining said moment by a method selected from the group consisting of determining the position and the transporting speed of said individual containers before entering into said fastening device, and determining the relative position of said individual containers in relation to said first conveyor, and attaching said individual drinking straws to said individual containers at the moment defined before.
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7. Apparatus for attaching drinking straws to packaging containers comprising
a first conveyor having driving means for transporting packaging containers, a controllable fastening device, means for detecting the relative position of individual packaging containers in relation to said first conveyor, said first conveyor comprising an endless conveyor, a sensor being provided in front of said fastening device, as seen in the transport direction, said sensor being located such that a container being transported past said sensor is triggering a sensor signal, coding means provided on said first conveyor for outputting signals defining at least the distance between said sensor and a last operating member of said fastening device, with a resolution sufficient for a desired fastening accuracy, and a control unit being designed and connected to said coding means, said sensor, and said fastening device, such that said fastening device is actuated at the moment when a point of said first conveyor at which the sensor signal was triggered reaches said fastening device.
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10. Apparatus for attaching drinking straws to packaging containers, comprising
a first conveyor having driving means for transporting packaging containers, a controllable fastening device, means for sensing position and speed of individual packaging containers, said first conveyor comprising an endless conveyor, said sensing means comprising at least two sensors being provided in front of said fastening device, as seen in the transport direction, at such a distance from one another that a packaging container conveyed past that sensors triggers sensor signals in succession, and a control unit connected to said sensors for determining a time interval between said sensor signals and the speed of said individual packaging container conveyed past and for actuating said fastening device after expiry of a delay time corresponding to said speed and to the length of said conveyor between said fastening device and said sensors.
Specification