IPC분류정보
국가/구분 |
United States(US) Patent
공개
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0862151
(2015-09-22)
|
공개번호 |
US-0080450
(2017-03-23)
|
발명자
/ 주소 |
|
출원인 / 주소 |
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
0 |
초록
▼
A hot melt glue gun with an automatic glue stick feeding structure includes a gun-shaped housing, a press button, an automatic glue stick feeding device, a hot melt unit, a nozzle, and a control unit. The automatic glue stick feeding device includes a casing and a synchronous motor having a transmis
A hot melt glue gun with an automatic glue stick feeding structure includes a gun-shaped housing, a press button, an automatic glue stick feeding device, a hot melt unit, a nozzle, and a control unit. The automatic glue stick feeding device includes a casing and a synchronous motor having a transmission shaft. The casing includes a transmission gear, an inlet, and at least one gear train having upper and lower gears and a passage. The control unit includes a control printed circuit board, a micro switch, a forward relay output control portion, and a rearward relay output control portion. A glue stick is moved forwards when a user slightly presses the press button. When the press button is not pressed, the glue stick moves rearwards, avoiding continuous dripping of the molten glue through a nozzle.
대표청구항
▼
1. A hot melt glue gun with an automatic glue stick feeding structure, comprising: a housing, with the housing being gun-shaped and including a hole, an inlet, two channels, a through-hole, and a notch;a press button including two lateral protrusions slidably received in the two channels, with the p
1. A hot melt glue gun with an automatic glue stick feeding structure, comprising: a housing, with the housing being gun-shaped and including a hole, an inlet, two channels, a through-hole, and a notch;a press button including two lateral protrusions slidably received in the two channels, with the press button further including a column and a lower protrusion, with a spring mounted around the column, with the press button having an end extending beyond the notch of the housing, and with the spring having an end abutting against the housing;an automatic glue stick feeding device including a casing and a synchronous motor having a transmission shaft, with the casing including a left casing part, a right casing part, a transmission gear, a feeding sleeve, a bushing, at least one set of gear shafts, at least one set of gear shaft holes, and at least one gear train, with the feeding sleeve including an inlet, with the left casing part and the right casing part together clamping the feeding sleeve, with the transmission shaft of the synchronous motor rotatably held by the left casing part and the right casing part, with the transmission gear and the bushing mounted around the transmission shaft of the synchronous motor, with the at least one gear train including an upper gear, a lower gear meshed with the transmission gear, and a passage, with the synchronous motor including a first contact, a second contact, a third contact, and a fourth contact;a hot melt unit including a nozzle and a heating unit; anda control unit including a control printed circuit board, a micro switch having an actuation rod, a power switch mounted in the hole of the housing, a forward relay output control portion, a rearward relay output control portion, and a signal input control portion, with the control printed circuit board mounted in the housing and including a first contact, a second contact, a third contact, a sixth contact, a seventh contact, an eighth contact, and a ninth contact, with the micro switch electrically connected to the first, second, and third contacts of the control printed circuit board, with the actuation rod of the micro switch facing the lower protrusion of the press button, with the power switch electrically connected to the seventh contact of the control printed circuit board, the synchronous motor, the heating unit, and the micro switch, with the forward relay output control portion electrically connected to the eighth contact of the control printed circuit board, and with the rearward relay output control portion electrically connected to the ninth contact of the control printed circuit board. 2. The hot melt glue gun with an automatic glue stick feeding structure as claimed in claim 1, with the at least one set of gear shafts including two sets of gear shafts, with the at least one gear train including two gear trains, and with the at least one set of gear shaft holes including two sets of gear shaft holes. 3. The hot melt glue gun with an automatic glue stick feeding structure as claimed in claim 1, wherein the control unit further includes a temperature controller electrically connected to the power switch and the heating unit. 4. The hot melt glue gun with an automatic glue stick feeding structure as claimed in claim 1, with the control unit further including an indication lamp, with the control printed circuit board further including a fourth contact and a fifth contact, and with the indicator lamp electrically connected to the fourth contact, the fifth contact, and the power switch.
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