Abstract: A glue applying machine includes a machine body, a glue applying device, and a control device. The glue applying device is mounted on the working platform of the machine body. The glue applying device includes a track, a movement unit, and a height limit member. The movement unit includes a glue applying member and a glue applying detection member. The glue applying detection member emits a laser beam which defines an effective detection section and a non-effective detection section. The height limit member defines a contact face. The control device controls the laser beam to detect the operating area of the workpiece on the working platform through the effective detection section and to start the glue applying member. Thus, the glue applying detection member exactly detects the operating area on the working platform, and the glue applying member applies the glue on the correct positions.

Abstract: An adjustable positioning structure for a feeding support plate of a circular sawing machine contains a magnetic element, a micro pneumatic cylinder, and a control button. The magnetic element is accommodated in a magnetic slider which is fitted with a guide column on a material feeding side of a table of the circular sawing machine and is configured to produce a change of a magnet value of the magnetic slider when the magnetic slider moves along the guide column reciprocately, such that a displacement value of the magnetic slider is calculated and is displayed by a display on the magnetic slider. The micro pneumatic cylinder is mounted on the magnetic slider and is configured to fix or release the magnetic slider relative to the guide column. The control button is arranged on the feeding support plate and is configured to control the micro pneumatic cylinder to operate.