Means for controlling the application of glue to a defined area
US4389971A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 16, 1979 |
| Grant date | Jun 28, 1983 |
| Priority date | — |
| Expiry date | Apr 16, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB31B50/006
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A control for regulating the application of glue to a defined area of a moving paper board box blank includes a sensor for detecting the presence of the leading and trailing edges of a moving defined glue application area; a glue applicator spaced a fixed distance from the sensor; a pulse generator providing pulses indicative of movement of the application area; and counting means which are connected to the sensor, glue applicator and pulse generator. The sensor initiates a counting action at detection of the leading edge of a glue application area. The counting means initiates glue application after a predetermined number of counted pulses representative of the fixed distance between the sensor and glue applicator. The sensor initiates a second counting action at detection of the trailing edge of a glue application area and the counting means stops glue application after the same predetermined number of pulses representative of the sensor glue applicator fixed distance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.