CN2571498Y - Reverse absorbing type high-speed discontinuous no-trailing sol spraying gun - Google Patents
Reverse absorbing type high-speed discontinuous no-trailing sol spraying gun Download PDFInfo
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- CN2571498Y CN2571498Y CN 02253196 CN02253196U CN2571498Y CN 2571498 Y CN2571498 Y CN 2571498Y CN 02253196 CN02253196 CN 02253196 CN 02253196 U CN02253196 U CN 02253196U CN 2571498 Y CN2571498 Y CN 2571498Y
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Abstract
The utility model discloses a reverse absorbing type high-speed discontinuous no-trailing hot-melt sol spraying gun, which comprises a main body, an air inlet mechanism and a sol feeding mechanism, wherein the inner part of the main body is provided with a cavity with a circular cross section; the bottom end of the cavity is provided with spraying nozzles; the inner part of the cavity is provided with thimbles and sealing pads; the cavity is orderly divided into a first air cavity, a second air cavity, a hot-melt sol spraying cavity and a reverse absorbing spraying cavity; the top ends of the thimbles are fixedly provided with a piston which is positioned between the first air cavity and the second air cavity; springs are sheathed on the thimbles; the diameter of the reverse absorbing spraying cavity is slightly larger than that of the hot-melt sol spraying cavity; the reverse absorbing spraying cavity is positioned on the lower part of a hot-melt sol injecting cavity and is communicated with the hot-melt sol injecting cavity; the reverse absorbing spraying cavity is communicated with the sol spraying nozzles on the bottom end; a reverse absorbing valve body, the diameter of which is slightly larger than that of the thimbles, is arranged on the lower ends of the thimbles; the reverser absorbing valve body is positioned inside the reverse absorbing spraying cavity; the reverse absorbing valve body is connected with the thimbles through a circular table with a gradually changing diameter; the diameter of the reverse absorbing valve body is larger than that of the hot-melt sol spraying cavity.
Description
Technical field
The utility model relates to a kind of automatic glue-spraying rifle, and particularly a kind of reversed bay-type PUR that conditions of streaking can not occur is interrupted the coating rifle at a high speed.
Background technology
Air pressure automatic glue-spraying technology has been widely used in the production field of electronics, instrument, scientific and technological model, toy, plastics, manufactured goods at present, and the equipment that uses mostly is to be coated with rifle automatically.Because the physicochemical characteristics of PUR can not in time be cleared up PUR spraying nozzle when coating, is easy to occur conditions of streaking, this phenomenon is unfavorable for the high-speed coating of being interrupted.Simultaneously,,, spraying nozzle is stopped up, be unfavorable for the operation of next coating as this PUR hardening by cooling because the conditions of streaking of those coating rifles causes to be coated with in the back spraying nozzle that finishes to still have remaining melten gel to exist.
The utility model content
The purpose of this utility model is to provide a kind of reversed bay-type PUR to be interrupted the coating rifle at a high speed, can realize that being interrupted coating does not at a high speed trail automatically with the cull back suction at spraying nozzle place when quitting work, and has overcome PUR simultaneously and has cooled off the defective of stopping up spraying nozzle.
Reversed bay-type PUR of the present utility model is interrupted the coating rifle at a high speed and comprises coating gun main body, admission gear and glue feed mechanism.Be the cavity of circular cross-section in this coating gun main body, the cavity bottom is provided with a spraying nozzle, and a thimble is set in this cavity and counts the cover sealing gasket, this cavity is divided into first air cavity, second air cavity, PUR to be coated chamber and coating back suction chamber successively, a piston is fixed on the top of described thimble, this piston is arranged between first air cavity and second air cavity, and this second air cavity bottom is provided with sealing gasket, and on the sealing gasket of this second air cavity and the thimble between the piston sheathed spring; The sealing of the upper end in described PUR to be coated chamber, the slightly larger in diameter in coating back suction chamber in PUR to be coated chamber and be positioned at PUR to be painted chamber below and is communicated with PUR to be painted chamber, this is coated with back suction chamber and is communicated with the spraying nozzle of bottom; PUR to be painted chamber is passed in described thimble bottom, the lower end is the back suction valve body that a diameter is slightly larger than thimble, this suckback valve body is positioned at the coating back suction chamber of cavity, and this back suction valve body is connected with the round platform of thimble by the gradual change diameter, and the diameter of back suction valve body is greater than the diameter in PUR to be coated chamber; This glue feed mechanism is arranged on the bottom of main body and is communicated with PUR to be coated chamber; This admission gear is that an inlet manifold is divided into two-way, wherein a road directly be communicated with second air cavity, another road is communicated to first air cavity by a magnetic valve, the magnetic valve that is communicated with first air cavity is provided with the hole of cooling down.
The diameter of above-mentioned this main body cavity can be different, and wherein the diameter of first air cavity is greater than the diameter of second cavity, and in this first air cavity a piston is set, and the diameter of this piston is greater than the diameter of the piston in second cavity.
The utility model is provided with two air cavitys owing to main body and is connected with the inlet manifold respectively, can change two pressure differentials between the air cavity at any time by the duty of control magnetic valve, when coating work, first air cavity inflation moves down thimble, and at this moment PUR can enter coating back suction chamber by PUR to be coated chamber and carries out PUR coating action; And when stopping to be coated with, first air cavity is exitted, is cooled down, make thimble bullet under spring and the gas pressure, the round platform part of thimble bottom back suction valve body just with on move and seal up PUR to be coated chamber, PUR is no longer flowed out, reduce owing to moving the pressure that makes in the coating back suction chamber on this back suction valve body simultaneously, thereby the PUR of not ejection is turned back to rapidly in the coating back suction chamber, conditions of streaking can not occur.The different-diameter design of first air cavity and second air cavity and the design of large and small piston can form with less big piston and produce the bigger valve piston and the formation of thimble, improve the translational speed of thimble, increase back suction power.
Description of drawings
Fig. 1 is the structural representation of coating rifle of the present utility model.
Wherein: 1 is the power of electromagnetic valve line; 2 is magnetic valve; 3 are the magnetic valve hole of cooling down; 4 is the first air cavity air inlet pipe; 5 is first air cavity; 6 is big piston; 7 is valve piston; 8 is spring; 9 are the coating gun main body; 10 is sealing gasket; 11 is glue-feeder; 12 is the PUR chamber; 13 is the PUR passage; 14 are coating back suction chamber; 15 are the back suction valve body; 16 is spraying nozzle; 17 is PUR to be painted chamber; 18 is sealing gasket; 19 is thimble; 20 is cushion chamber; 21 is second air cavity; 22 is the second air cavity air inlet pipe; 23 is total inlet pipe.
The specific embodiment
As shown in Figure 1, reversed bay-type PUR of the present utility model is interrupted the coating rifle at a high speed and is made up of coating gun main body, admission gear and glue feed mechanism.Coating gun main body 9 is cavitys of a hollow, is first air cavity 5, second air cavity 21, cushion chamber 20, PUR to be coated chamber 17 and coating back suction chamber 14 from top to bottom successively in this cavity.Wherein cut apart by the valve piston 7 that is provided with between first air cavity 5 and second air cavity 21, and the diameter of first air cavity 5 is greater than the diameter of second air cavity 21; The top of this first air cavity 5 connects one first air cavity air inlet pipe 4, and inside is provided with a big piston 6; The cavity bottom of second air cavity 21 is provided with a sealing gasket 10, and forms a cushion chamber 20 between sealing pad 10 and the sealing gasket 18, and this cushion chamber 20 communicates with atmosphere; The downside of sealing gasket 18 is PUR to be coated chambeies 17, and this PUR to be coated chamber 17 is communicated with the coating back suction chamber 14 that is positioned at its downside, and the diameter in coating back suction chamber 14 is greater than the diameter in PUR to be coated chamber 17.Also being provided with a thimble 19 in above-mentioned cavity, fixedlys connected with valve piston 7 in the top of thimble 19, and this thimble 19 passes second air cavity 21, cushion chamber 20, PUR to be coated chamber 17 and coating back suction chamber 14 more respectively.Wherein be arranged with thimble spring 8 on the thimble 19 in second air cavity 21, an end of this thimble spring 8 is fixed on the sealing gasket 10, and the other end is fixed on the valve piston 7.Cushion chamber 20 communicates with atmosphere, and this cushion chamber 20 has certain axial length, and the buffer distance that provides thimble 19 to move is provided.The diameter in PUR to be coated chamber 17 is not very big, the passage that it can provide temporary transient parking space of PUR and coating to flow through, this PUR to be coated chamber 17 is communicated with the PUR chamber 11 of glue feed mechanism by a PUR passage 13, and the lower end is communicated with coating back suction chamber 14.The diameter in coating back suction chamber 14 is greater than the diameter in above-mentioned PUR to be coated chamber 17, and the bottom in this coating back suction chamber 14 is communicated with a spraying nozzle 16.Above-mentioned thimble 19 passes 17 backs, PUR to be coated chamber and connects a back suction valve body 15 by a round platform, wherein the diameter of this back suction valve body 15 is greater than the internal diameter in PUR to be coated chamber 17, thereby the round platform that connects in the middle of can making can upwards withstand the edge in PUR to be coated chamber 17 and realize sealing.
As shown in Figure 1, admission gear of the present utility model comprises an inlet manifold 23, this inlet manifold 23 is divided into the second air cavity air inlet pipe 22 and the first air cavity air inlet pipe 4, and a magnetic valve 2 is set to control the air inlet state of first air cavity 5 on this first air cavity air inlet pipe 4.And the hole 3 of cooling down is set on this magnetic valve, with the compressed air in timely elimination first air cavity.Magnetic valve 1 is introduced electric power by power line 1 and is controlled.
Glue feed mechanism of the present utility model comprises that PUR chamber 12, PUR passage 13 and PUR import 11 constitute, this glue feed mechanism can overall fixed in the bottom of coating gun main body 9.Wherein PUR import 11 provides PUR to PUR chamber 12, PUR passage 13 is communicated with PUR chamber 12 and PUR to be coated chamber 17, make PUR can enter PUR to be coated chamber 17, in addition, also be provided with attemperator and heater in this glue feed mechanism, to guarantee the temperature of PUR.
Coating rifle of the present utility model in use, inlet manifold 23 is connected with compressed air gas source, and PUR import 11 is connected with the PUR source, under the situation that magnetic valve 2 is not opened, non-compressed air in first air cavity 5, and second air cavity 21 is introduced compressed air by air inlet pipe 22, under the effect of compressed air and spring 8, valve piston 7 is upwards pushed up, fixing thimble 19 also is in the state of top on the valve piston 7, at this moment the back suction valve body 15 that is positioned at thimble 19 bottoms also is in the upper state, so the round platform on it contacts sealing with the bottom chamber wall in PUR to be coated chamber 17, makes PUR can not enter coating back suction chamber 14 and through spraying nozzle 16 ejections.And when starting magnetic valve, first air cavity 5 is introduced compressed air, this compressed air promotes big piston 6 actions, because big piston 6 areas are greater than valve piston 7, big piston 6 can promote valve piston 7 actions again with pressure at double, and valve piston 7 drives thimble 19 and moves down, thereby the back suction valve body 15 of thimble 19 bottoms is moved down, round platform is 17 disengagings from PUR to be coated chamber, and PUR can be coated with away through spraying nozzle 16 through this PUR to be coated chamber 17 and coating back suction chamber 14 again.When needs stop to be coated with, close magnetic valve 2, and the compressed air of opening in hole 3, the first air cavitys 5 of cooling down is discharged the thimble 19 rapid initial states of replying, back suction valve body 14 rapid back suctions are replied initial state, stop the coating passage,, make not occur conditions of streaking when being interrupted the coating operation simultaneously because the back suction effect makes the residual heat melten gel pumpback that is positioned at spraying nozzle 16, can remove simultaneously the melten gel in the spraying nozzle 16, avoid cooling off phenomenon of blocking.
Claims (4)
1. a reversed bay-type PUR is interrupted the coating rifle that do not trail at a high speed, comprise the coating gun main body, admission gear and glue feed mechanism, it is characterized in that: be the cavity of circular cross-section in this coating gun main body, the cavity bottom is provided with a spraying nozzle, and a thimble is set in this cavity and counts the cover sealing gasket, this cavity is divided into first air cavity successively, second air cavity, PUR to be coated chamber and coating back suction chamber, a piston is fixed on the top of described thimble, this piston is arranged between first air cavity and second air cavity, this second air cavity bottom is provided with sealing gasket, and on the sealing gasket of this second air cavity and the thimble between the piston sheathed spring; The sealing of the upper end in described PUR to be coated chamber, the slightly larger in diameter in coating back suction chamber in PUR to be coated chamber and be positioned at PUR to be painted chamber below and is communicated with PUR to be painted chamber, this is coated with back suction chamber and is communicated with the spraying nozzle of bottom; PUR to be painted chamber is passed in described thimble bottom, the lower end is the back suction valve body that a diameter is slightly larger than thimble, this suckback valve body is positioned at the coating back suction chamber of cavity, and this back suction valve body is connected with the round platform of thimble by the gradual change diameter, and the diameter of back suction valve body is greater than the diameter in PUR to be coated chamber; This glue feed mechanism is arranged on the bottom of main body and is communicated with PUR to be coated chamber; This admission gear is that an inlet manifold is divided into two-way, wherein a road directly be communicated with second air cavity, another road is communicated to first air cavity by a magnetic valve, the magnetic valve that is communicated with first air cavity is provided with the hole of cooling down.
2. reversed bay-type PUR according to claim 1 is interrupted the coating rifle that do not trail at a high speed, it is characterized in that: the diameter of this first air cavity is greater than the diameter of second air cavity, in this first air cavity a piston is set, the diameter of this piston is greater than the diameter of the piston in second cavity.
3. reversed bay-type PUR according to claim 1 is interrupted the coating rifle that do not trail at a high speed, it is characterized in that: the cavity of this main body also comprises a cushion chamber, and between second air cavity and PUR to be coated chamber, and this cushion chamber communicates with atmosphere.
4. reversed bay-type PUR according to claim 1 is interrupted the coating rifle that do not trail at a high speed, it is characterized in that: this glue feed mechanism is provided with heat insulation and heating equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02253196 CN2571498Y (en) | 2002-09-24 | 2002-09-24 | Reverse absorbing type high-speed discontinuous no-trailing sol spraying gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02253196 CN2571498Y (en) | 2002-09-24 | 2002-09-24 | Reverse absorbing type high-speed discontinuous no-trailing sol spraying gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2571498Y true CN2571498Y (en) | 2003-09-10 |
Family
ID=33722429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02253196 Expired - Fee Related CN2571498Y (en) | 2002-09-24 | 2002-09-24 | Reverse absorbing type high-speed discontinuous no-trailing sol spraying gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2571498Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101972728A (en) * | 2010-10-14 | 2011-02-16 | 深圳市宜极邦机电设备有限公司 | Volumetric quantitative jet valve |
| CN102501678A (en) * | 2011-11-25 | 2012-06-20 | 平湖英厚机械有限公司 | Glue spraying mechanism with broken wire recovering and automatic washing functions and recovering and washing method |
| CN103252302A (en) * | 2013-05-09 | 2013-08-21 | 苏州金牛精密机械有限公司 | Semi-automatic glue gun |
| CN102039248B (en) * | 2009-10-26 | 2013-11-06 | 鸿富锦精密工业（深圳）有限公司 | Glue dropping device |
| CN103831187A (en) * | 2012-11-20 | 2014-06-04 | Seb公司 | Spraying device comprising a nozzle for dispensing a liquid spray and household appliance provided with such a spraying device |
-
2002
- 2002-09-24 CN CN 02253196 patent/CN2571498Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102039248B (en) * | 2009-10-26 | 2013-11-06 | 鸿富锦精密工业（深圳）有限公司 | Glue dropping device |
| CN101972728A (en) * | 2010-10-14 | 2011-02-16 | 深圳市宜极邦机电设备有限公司 | Volumetric quantitative jet valve |
| CN101972728B (en) * | 2010-10-14 | 2013-01-23 | 陈时雄 | Volumetric quantitative jet valve |
| CN102501678A (en) * | 2011-11-25 | 2012-06-20 | 平湖英厚机械有限公司 | Glue spraying mechanism with broken wire recovering and automatic washing functions and recovering and washing method |
| CN102501678B (en) * | 2011-11-25 | 2014-12-24 | 平湖英厚机械有限公司 | Glue spraying mechanism with broken wire recovering and automatic washing functions and recovering and washing method |
| CN103831187A (en) * | 2012-11-20 | 2014-06-04 | Seb公司 | Spraying device comprising a nozzle for dispensing a liquid spray and household appliance provided with such a spraying device |
| CN103831187B (en) * | 2012-11-20 | 2017-11-17 | Seb公司 | Sprayer unit including the divergent nozzle for spraying liquid and the home appliance equipped with this sprayer unit |
| CN103252302A (en) * | 2013-05-09 | 2013-08-21 | 苏州金牛精密机械有限公司 | Semi-automatic glue gun |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |