1. Technical Field
The present disclosure relates to an adhesive dispenser, especially to an adhesive dispenser automatically regulating adhesive nozzle and an adhesive nozzle regulating method.
2. Description of Related Art
Adhesive nozzles of adhesive dispensers are needed to be manually changed after extended use. However, after the nozzle is manually changed, the position of the adhesive nozzle related to an adhesive cylinder will be different from its previous position. Thus, errors may occur because the adhering path is changed accordingly. Therefore, the quality of the product may be affected.
Many aspects of the disclosure can be better understood with reference to the following figures. The components in the figures are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the disclosure. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the several views.
Referring to
The slide plate 54 is slidably engaged with the connecting plate 53 along the Z-axis. The adhesive dispensing assembly 90 is fastened to the slide plate 54, thus, the distances along the X-direction and the Z-direction of the adhesive dispensing assembly 90 can be adjusted by moving the slide plate 54, and the connecting plate 53, and the position of the adhesive dispensing assembly 90 at the X-axis and the Z-axis will be adjusted.
The two guiding plates 55 are arranged in parallel on the base 30 along the Y-axis. The seats 56 are configured for supporting products (not shown). Each seat 56 is slidably mounted on one corresponding guiding plate 55. To move the seats 56 along the guiding plates 55, the Y-direction distance of the adhesive dispensing assembly 90 will be jointly changed, and the position of the adhesive dispensing assembly 90 at the Y-axis is adjusted. As such, to adapt to a variety of dispensing requirements, the position of the adhesive dispensing assembly 90 can be easily adjusted by moving the connecting plate 53, the slide plate 54, and the seats 56. Furthermore, the adhesive dispenser 100 includes two guiding plates 55 and two seats 56, the objects to receive adhesive can be alternately positioned on the two seats 56, which effectively improves the dispensing efficiency of the adhesive dispenser 100.
Referring to
Referring to
The control unit 96 is electrically connected to the two pairs of light elements 84a, 84b, 86a, 86b and receives the control signal transmitted from the two pairs of light elements 84a, 84b, 86a, 86b when the light beams therebetween is blocked, and the control unit 96 records the coordinate position.
The control unit 96 is electrically connected to the drive unit 98 to controls the drive unit 98 to adjust the position of the adhesive nozzle 94. Particularly, the control unit 96 stores an reference coordinate position of the adhesive nozzle 94 and calculates the variation of the recorded coordinate position related to the reference coordinate position. In the present embodiment, the reference coordinate position of the adhesive nozzle 94 can be the position before the last adhesive nozzle 94 being changed. The control unit 96 controls the drive unit 98 to adjust the adhesive nozzle 94 according to the variation, thus to regulate the position of the adhesive nozzle 94 related to the adhesive cylinder 92.
Referring to
A method of confirming the extreme point includes the following steps. The first step, the moving assembly 50 drives the adhesive nozzle 94 along the X-direction (towards the fourth sidewall 827, for example) until the adhesive nozzle 94 blocks the light beam of the first pair of light elements 84a, 84b, then the first pair of light elements 84a, 84b triggers the control signal. The second step, the moving assembly 50 drives the adhesive nozzle 94 along the Z-direction (upwards) until the adhesive nozzle 94 depart the light beam on the X-direction (on a left side of the light beam that near the fourth sidewall 827, for example). The third step, the moving assembly 50 drives the adhesive nozzle 94 along the opposite X-direction (towards the second sidewall 825, for example) the adhesive nozzle 94 blocks the light beam of the first pair of light elements 84a, 84b, then the first pair of light elements 84a, 84b triggers the control signal. The fourth step, the moving assembly 50 drives the adhesive nozzle 94 along the Z-direction (upwards) until the adhesive nozzle 94 depart the light beam on the X-direction (on the right side of the light beam near the second sidewall 825, for example). Repeating the steps until the position of the adhesive nozzle 94 can just both block the light beam of the first pair of light elements 84a, 84b, even further movement from the position, the adhesive nozzle 94 can not block the light beam of the first pair of light elements 84a, 84b, therefore, the position is the extreme point.
The adhesive dispenser 100 of the exemplary embodiment can detects the adhesive nozzle 94 through the two pairs of light elements 84a, 84b, 86a, 86b, and when the adhesive nozzle 94 blocks the light beams of the pair of light elements 84a, 84b, 86a, 86b, the control unit 96 records the position of the adhesive nozzle 94 and compares with the reference position, then regulates the position of the adhesive nozzle 94. The adhesive dispenser 100 regulates accurately the position of the adhesive nozzle 94 after changing a new adhesive nozzle 94, thus avoiding any error on the adhesive dispensing path of the adhesive dispenser 100.
It is believed that the exemplary embodiment and its advantages will be understood from the foregoing description, and it will be apparent that various changes may be made thereto without departing from the spirit and scope of the disclosure or sacrificing all of its advantages, the examples hereinbefore described merely being preferred or exemplary embodiment of the disclosure.
Number | Date | Country | Kind |
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2012101978934 | Jun 2012 | CN | national |