IṢẸ́ ỌNÀ
ẸWÀ ÀTI ÌLERA
IṢẸ́ ỌWỌ́
ÀṢÀ ÀTI ÌTÀN
ÌṢERÉ
ÀYÍKÁ
OÚNJẸ ÀTI OHUN MÍMU
REVERSE ENGINEERING
SÁYẸ́ǸSÌ
ERÉ ÌDÁRAYÁ
ÌMỌ̀-Ẹ̀RỌ
ÀWỌN OHUN WÍWỌ̀
Hot Glue Gun: Weller & Brassaw, 1973
Carl E. Weller and Alden J. Brassaw, for Cooper Industries, patented this glue gun in 1973, US 3,744,921. A stick of solid hot-melt adhesive drops through a loading well into a tubular melt chamber that narrows to a nozzle. Mica sheet wound with nichrome wire and closed by a metal sleeve heats the chamber, under a thermostat. Instead of a thumb, ratchet or feed wheel pushing the stick, a spring drives a Teflon-tipped piston forward against it. A valve pin in the nozzle keeps it closed against dripping; pressing the projecting pin on the work opens it and the glue flows.
Ilọsíwájú
Factory process
Ìlànà
1
1
Housing and melt chamber
Housing and melt chamber
Fit the elongated tubular melt chamber between the two pistol-shaped housing halves: a uniform cylindrical barrel with a loading well opening through the top of the housing, a converging conical forward part and a threaded end.
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Ìdajì àpótí ìbọn lẹ̀ẹ̀pọ̀1 ẹyọ
Yàrá ìyọ́ oníhun ọ̀pá1 ẹyọÀwọn irinṣẹ́ tí a nílò:
Ìṣù àwọn ohun ìyí skurú2
2
Heater
Heater
Wrap mica sheeting spirally round the barrel with nichrome windings between the layers, close it in a tubular metal sleeve, and fit the thermostat in its well against it.
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Ẹ̀rọ ìgbóná nichrome tí a wé sínú mica pẹ̀lú thermostat1 ẹyọ
Okun waya nichrome1 as required
Pẹpẹ mica1 as requiredÀwọn irinṣẹ́ tí a nílò:
Ẹmú Àkópọ̀3
3
Nozzle and valve
Nozzle and valve
Screw the nozzle onto the threaded end. Inside it, the valve pin's enlarged portion seats against the bore's step and its tip projects from the outlet; glue pressure holds it shut until the tip is pressed against the work.
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Nozzle lẹ̀ẹ̀pọ̀ oníṣí1 ẹyọÀwọn irinṣẹ́ tí a nílò:
Kọ́kọ́rọ́ tí a lè ṣàtúnṣe4
4
Plunger
Plunger
Fit the plunger, a Teflon piston on a rod guided by a plate, behind the loading well, with its knob outside the housing; couple it to the spring in its tube through the pull device so the spring pushes the glue stick forward.
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Plunger sípírínì pẹ̀lú piston Teflon1 ẹyọÀwọn irinṣẹ́ tí a nílò:
Ìṣù àwọn ohun ìyí skurúÀwọn ohun-èlò
7- Àyè
- Àyè
- 1 as requiredÀyè
- 1 as requiredÀyè
- Àyè
Àwọn irinṣẹ́ tó nílò
3- Àyè
Ìtọ́nisọ́nà yìí ń ṣe
Blueprint tó jọra
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