CN102642233A - High-pressure air-free atomization glue-applying method and device - Google Patents
High-pressure air-free atomization glue-applying method and device Download PDFInfo
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- CN102642233A CN102642233A CN2011101881258A CN201110188125A CN102642233A CN 102642233 A CN102642233 A CN 102642233A CN 2011101881258 A CN2011101881258 A CN 2011101881258A CN 201110188125 A CN201110188125 A CN 201110188125A CN 102642233 A CN102642233 A CN 102642233A
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Abstract
The invention provides a high-pressure air-free atomization glue-applying method. According to the method, a glue solution is sprayed from a glue-applying device to form fog glue solution streams, and compressed air is provided for carrying out secondary atomization on the glue solution streams sprayed out of the glue-applying device. The invention further provides a high-pressure air-free atomization glue-applying device which comprises a chamber member, a piston device and a resetting mechanism; the chamber member is provided with a longitudinally-through chamber, the front end and the rear end of the longitudinalyl-through chamber are closed, and the front end of the longitudinally-through chamber is provided with a glue solution passage and an air passage which are communicated with the outside; the glue solution passage is provided with a glue solution inlet, and an air inlet is formed in the sidewall of the chamber; the piston device comprises a piston rod, and a valve core is sleeved on the piston rod; and the resetting mechanism comprises two resetting springs, the two ends of one resetting spring are respectively abutted against the piston rod and the closed end of the rear end of the chamber, and the two ends of the other resetting spring are respectively abutted against the valve core and the closed end of the rear end at the upstream of the chamber. According to the high-pressure air-free atomization glue-applying method and the high-pressure air-free atomization glue-applying device, the outflow of the glue solution is automatically controlled, and the sprayed quantity of the glue solution can be accurately controlled; and meanwhile, the sprayed glue solution can be fully atomized, so that the gas pressure of the atomized glue solution is reduced, and the energy consumption is lowered.
Description
Technical field
The invention belongs to industrial applying glue technical field, a kind of glue applying method is provided, especially a kind of high-pressure airless atomizing glue applying method, the present invention also provides a kind of high-pressure airless atomizing size applicator.
Background technology
Wood-based plate be with timber or non-wood plant fibre through being machined into raw materials such as different shape fiber, particle or veneer, impose adhesive such as phenolic resin glue, urea-formaldehyde resin adhesive, isocyanate glue etc. then, the sheet material that is pressed into through combination again.
Applying glue is in proportion a certain amount of adhesive and required additive to be applied to the raw material surface equably.Glue applying method is different, and adhesive is also different with uniformity coefficient at the coverage condition on raw material surface, directly influences the bonding strength of wood-based plate.
Wood-based plate applying glue mode mainly contains liquid gummosis and two kinds in atomizing spray glue.Liquid gummosis is also named and drenches the glue method, is the size according to material flow, adds glue by a certain percentage, relies on the rubbing action that is in contact with one another between the raw material that glue is scatter.This kind method uniformity of size application is poor, and resin added is not easy control, glue large usage quantity.
Atomizing spray glue is that adhesive is made it to disperse and be fragmented into little glue to drip through spraying; Attached to the raw material surface; In this process, owing to rotation or the vibration of adhesive with respect to the high-speed motion and the injection apparatus of air, the tiny glue that adhesive can be atomized into the different size scope drips.Under the situation of identical resin added, atomizing spray glue is more even than liquid gummosis applying glue, has increased glue and has dripped and raw material surface contact area, can improve the physical and mechanical property of production board.
Widely used aldehyde adhesive stick is owing to release formaldehyde in the Wood-based Panel Production, and contaminated environment works the mischief to health, uses more and more to be restricted.Demand for the environmental-protection type adhesive of formaldehydeless release such as isocyanate glue (MDI) etc. is increasing.With particieboard production is example, uses air atomizing spray glue MDI adhesive consumption to be generally 5～6%, and the cost of adhesive accounts for 30～40% of wood-based panel product total production cost, sometimes even higher.Adhesive consumption, uniformity of size application are the key factors that influences wood-based plate quality and production cost, and the research of glue-applying technique and the control of resin added are problem demanding prompt solutions in the wood-based panel industry production.
Mostly atomizing of the prior art spray glue generally is the air atomizing form, Compressed Gas is mixed with glue, and increase glue pressure, and pass to auxiliary air and atomize.Such applying glue mode, the flow of glue is not easy accurate control, and the size and the uniformity of the glue particulate of ejection are also wayward.Like this, the mixed volume and the uniformity of glue be will seriously have influence on, thereby the quality and the production cost of wood-based plate influenced.Simultaneously, gas is sneaked in the glue, need provide pressure higher Compressed Gas, increased energy loss.
Summary of the invention
The objective of the invention is to improve the deficiency of prior art; A kind of high-pressure airless atomizing glue applying method is provided, makes the spray volume of glue accurately to control, simultaneously; Make that the glue of ejection is atomized fully, and the gas pressure of feasible atomizing glue reduces, energy consumption reduces.
Another object of the present invention provides the high-pressure airless atomizing size applicator that uses in the said method.
The objective of the invention is to realize like this:
A kind of high-pressure airless atomizing glue applying method is characterized in that glue increases pressure through high-pressure pump, and ejection forms the glue spray from size applicator.
Further, can also introduce compressed air stream again, act on the glue stream that from size applicator, sprays, make this glue flow secondary-atomizing as assisted atomization compressed air.
Said compressed air stream is looped around around the said glue stream.
The ejection pressure of said glue stream is controlled in 9～20MPa scope, and the compressed-air actuated pressure of said assisted atomization is controlled in 0～0.4MPa scope.
Glue pressure plays an important role to the atomizing effect of applying glue nozzle, and the glue pressure of the applying glue of spraying usually is less than the pressure limit that provides in this method.Atomizing glue applying method provided by the invention, wherein the ejection pressure of glue stream is bigger, if pressure is lower than described number range, then the atomizing of glue is bad, sizing efficiency is relatively poor.But, if applying glue pressure greater than said number range, the glue fogging degree will improve not obvious, simultaneously, the pressurization energy consumption will increase greatly.
In order to reach glue atomizing requirement in the actual production; The present invention applies assisted atomization compressed air, adds this assisted atomization compressed air, and glue can further be atomized; Atomized particle size can be significantly improved, and can reduce the ejection pressure of glue stream.And that the pressure of the assisted atomization air among the present invention will be far smaller than in the prior art pressure that in glue, adds air is less, and therefore, auxiliary air pressure has bigger influence to atomizing effect.Through increasing auxiliary air, can suitably reduce the pressure of glue stream, reach the effect of uniform atomizing.Simultaneously, add assisted atomization compressed air, can cut down the consumption of energy, also can improve the bearing pressure of glue spraying equipment.
In some occasion, can be without the assisted atomization air.
Glue applying method provided by the invention utilizes high-pressure pump to apply certain high pressure to adhesive, makes its atomizing.In needs, assisted atomization compressed air also is provided, as auxiliary air; Only the high-pressure airless atomizing glue to the nozzle ejection carries out secondary-atomizing, like this, and except reaching better glue atomizing effect; Reduce the pressure of high-pressure pump, reduce outside the energy loss, simultaneously; The spray volume of the glue spray of no gas can be through the size applicator glue-feeder the adjusting accuracy controlling of open degree, for the realization of accurately applying glue provides assurance.
A kind of high-pressure airless atomizing size applicator, it comprises:
One chamber spare; Be provided with a chamber that connects on vertically on this chamber spare; The downstream front port of this chamber and the sealing of upper reaches rear port; On the blind end of front end, be provided with the glue passage and the gas passage that are in communication with the outside, the downstream port of glue passage forms the glue spout, and the downstream port of gas passage forms gas spout; This glue passage and gas passage all are communicated with said chamber; Be provided with the glue import at said glue passage, on this chamber sidewall, gas feed be set, these two imports are in communication with the outside;
One piston apparatus, it comprises a piston rod, and the downstream end of this piston rod is provided with piston, and it is arranged in the said glue passage hermetically and movably, in the reciprocating stroke of said piston rod, this piston closes or open said glue import; Also be provided with a spool on this piston rod; This valve core housing is located on the said piston rod; Be positioned at the upper reaches one side of said piston; On said piston rod, be provided with the spacing convex shoulder of spool, longitudinally constitute the said reciprocating stroke that the pilot seal structure that is slidingly matched forms said piston rod at this spool and said chamber to the upper reaches one end that should spool; This spool convexes with spool portion on one side, chamber downstream; This lateral parts between the said spool portion is a pressure-bearing surface; The position of this spool portion and length in the vertical are: said piston rod is in a part of said reciprocating stroke near the downstream end point of travel; This spool is deployed in said gas passage and is sealed said gas passage; In near the said reciprocating stroke of the remainder of upper reaches end point of travel, this spool portion withdraws from said gas passage or does not withdraw from but can remove the sealing of gas passage and open said gas passage;
One resetting-mechanism, it comprises two back-moving springs, and the two ends of one of which are against the blind end of said piston rod and said upstream rear end respectively, and its two ends of two are against the blind end of said spool and said upstream rear end respectively.
The operation principle that this high pressure does not have the aerosolization size applicator automatically is:
Piston always places the glue passage, under the resilient force of resetting-mechanism, and the glue import of piston closes glue passage, the spool on the spool is deployed in said gas passage and is sealed it.The work beginning; Compressed air is from the chamber of downstream one side of gas feed entering spool; Gas pressure promotes the spool that upper cover of piston rod is established in said pressure-bearing surface; Then the elastic force upstream direction that promotes piston rod resistance back-moving spring moves; Make the glue import of glue passage be opened, glue gets into the glue passage by the glue import and sprays from the glue spout.Along with the pressure increase of pressurized air, the continuous upstream direction of piston rod moves, and glue import open degree increases gradually, and the spray glue amount of spout also can increase gradually.
If the charge-air pressure that feeds is bigger; Can remove the sealing of gas passage so that the spool portion on the said spool withdraws from or do not withdraw from from said gas passage; Pressurized air then gets into gas passage and the port ejection of gas passage from the said chamber blind end, plays the effect to the glue secondary-atomizing of ejection.Certainly, this device also can control pressurized air pressure or control valve core physical dimension and spool portion is withdrawed from from gas passage, at this moment, do not have gas from gas passage, to spray, promptly do not have the secondary-atomizing effect.
When charge-air pipe was closed, under the effect of resetting-mechanism elastic force, the piston rod downstream moved, the import of piston closes glue, and the spool portion on the spool is arranged in gas passage and the confining gas passage.
In the middle of front end in said chamber downstream, the outlet of said glue passage were arranged on, the outlet of said gas passage was at least two, and it is centered around evenly being provided with of said glue outlet on every side;
The blind end of said upstream rear end is a rear end cap, and it is screwed onto on the said chamber spare, and the said back-moving spring in the said resetting-mechanism is against on this rear end cap.
Such rear end cap structure can be passed through to regulate the compression displacement amount that rear end cap screws in the depth adjustment back-moving spring of screw thread, thus the reciprocating stroke of regulating piston bar, and promptly adjusting piston is opened the size of glue import, regulates the big or small adjusting of glue flow.Simultaneously, can also the control valve core, make it place gas passage and do not have the gas ejection, perhaps make it withdraw from gas passage, and let pressurized air get into gas passage, and ejection, the glue of ejection is carried out secondary-atomizing.Therefore, this size applicator can not have secondary-atomizing and has two kinds of applying glue processes of secondary-atomizing.
An optimal design of said chamber spare is: said chamber spare comprises:
One nozzle body; It is a cylindrical shell; In this cylindrical shell, be provided with the chamber section of a maximum gauge; Constitute the maximum reciprocating stroke of said piston rod; The maximum periphery wall of the said spool that said piston rod is provided with and this chamber section inwall coupling; Two ends in this chamber section form the chamber section than minor diameter, constitute stroke by convex shoulder; The central part longitudinally of the less diameter chamber section of downstream one side of said reciprocating stroke is provided with a centre bore that vertically runs through and glue channel connection; Supply said piston rod to pass; And be provided with a guide section in this centre bore section; With said pressure-bearing surface on the said spool be provided with one in the middle of guide part cooperate; It is parallel with this centre bore to be provided with at least two passages in the outside of this centre bore of this chamber section; Constitute the gas passage section on the nozzle body, the said spool portion that is provided with on the said spool is corresponding with said channel position;
One rear end cap forms said upper reaches back-end closure end, and the said chamber section than minor diameter at this rear end cap and the said nozzle body upper reaches constitutes the structure that is tightly connected that is spirally connected;
One drive end bearing bracket, this drive end bearing bracket with said centre bore corresponding position said glue passage is set, form the fit structure that sealing is slided with said piston, the front end in these glue channel section downstream is provided with said glue spout; On this drive end bearing bracket, also be provided with drive end bearing bracket gas passage section and be in communication with the outside, it is corresponding with the gas passage section on the said nozzle body and form complete gas passage, and said drive end bearing bracket and said nozzle body are fixedly connected.
The outlet of said gas passage section be arranged on equably said glue spout around.
Wherein, can also connect a connector between said nozzle body and the said drive end bearing bracket, centre bore is set on this connector be communicated with said centre bore and the said glue channel section on the drive end bearing bracket on the said nozzle body; Said glue import is arranged on this connector; The gas passage section also is set on this connector, is communicated with gas passage and said drive end bearing bracket gas passage section on the said nozzle body.
Wherein, the said centre bore on the said drive end bearing bracket is a through hole, sets firmly a glue spraying head at the front end of this through hole, on the longitudinal axis of this glue spraying head, establishes said glue spout; On glue spraying head the glue spout around the said drive end bearing bracket gas passage section of perforation is set equably, the said gas passage section connection on this drive end bearing bracket gas passage section and the corresponding component that is connected.
In the middle of front end in said chamber downstream, the outlet of said glue passage were arranged on, the outlet of said gas passage was two or more, and it is centered around the setting peripherally of said glue outlet; Perhaps,
Said centre bore on the said drive end bearing bracket is a through hole, sets firmly a glue spraying head at the front end of this through hole, on the longitudinal axis of this glue spraying head, establishes said glue spout; On glue spraying head the glue spout around perforation is set the gas passage section link up with extraneous, this gas passage section is communicated with said gas passage section on the said drive end bearing bracket; Perhaps,
The blind end of the rear end of said upstream is a rear end cap, and it is screwed onto on the said chamber spare, and the said back-moving spring in the said resetting-mechanism is against on this rear end cap.
Said spool is provided with guide part, and correspondingly, the spigot surface that is provided with a setting longitudinally in the said chamber contacts with said guide part cooperation, and the contact all the time in said piston rod reciprocating stroke of this guide part.
Spout on the said glue spraying head is less, and it is superfine vaporific that glue is formed, and to improve its level of coverage on the raw material surface, glue and raw material is mixed.High-pressure airless spray glue technology has fully been used the adhesion mechanism of adhesive; Glue is atomized into superfine little micelle; High speed spreads, fully permeates with the raw material surface; Thereby form adhesive and raw material and be not only mechanical adhesion, but also increased tough and tensile durable chemical bonding, guaranteed the adhesion characteristic of adhesive.
High-pressure airless provided by the invention atomizing glue applying method, changing in the prior art in the atomizing spray glue glue and Compressed Gas mixed after in the way that ejects, adopt the glue ejection is applied pressurized air afterwards again, it is carried out secondary-atomizing.Such method helps the uniformity that glue amount and applying glue are sprayed in accurately control.Size applicator provided by the invention can ideally realize said method and it is simple and compact for structure, in the operation, as long as the keying of adjustment gas feed and regulate its size; Just can make things convenient for the open degree of accurately adjusting the glue import; Thereby adjustment spray glue amount through the adjusting for back-moving spring elastic force in the resetting-mechanism, cooperates the adjusting of gas feed; Can be so that this size applicator have the secondary-atomizing applying glue and two kinds of different applying glue processes of secondary-atomizing applying glue is arranged; And, can make the glue atomizing of ejection more abundant through to implement the mode applying glue of secondary-atomizing from the glue spray of nozzle ejection, uniformity of size application is significantly improved.
Through accompanying drawing the present invention is further specified below.
Description of drawings
Fig. 1 is the sectional structure sketch map of automatic no gas jets provided by the invention.
The specific embodiment
As shown in Figure 1, a kind of high-pressure airless atomizing size applicator, it comprises:
One chamber spare; Be provided with a chamber that connects on vertically on this chamber spare; The downstream front port of this chamber and the sealing of upper reaches rear port; On the blind end of front end, be provided with the glue passage and the gas passage that are in communication with the outside, the downstream port of glue passage forms glue spray A, and the downstream port of gas passage forms gas spout; This glue passage and gas passage all are communicated with said chamber; Be provided with glue import B at said glue passage, the end points place, the upper reaches of corresponding said piston rod reciprocating stroke is provided with gas feed C on this chamber sidewall, and these two imports are in communication with the outside;
One piston apparatus, it comprises a piston rod 3, and the downstream end of this piston rod is provided with piston 31, and it is arranged in the said glue passage hermetically and movably, in the reciprocating stroke of said piston rod, this piston closes or open said glue import B; Also be provided with a spool 1 on the piston rod; This spool 1 is set on the said piston rod 3; Be positioned at the upper reaches one side of said piston 31; On said piston rod, be provided with the spacing convex shoulder piece 32 of spool, form spacing convex shoulder, longitudinally constitute the reciprocating stroke that the pilot seal structure that is slidingly matched forms said piston rod 3 with said chamber at this spool 1 to spool 1 to downstream one end that should spool 1; This spool 1 convexes with spool portion 11 on one side, chamber downstream; This lateral parts between the said spool portion is a pressure-bearing surface; The position of this spool portion 11 and length in the vertical are: said piston rod 3 near the downstream end point of travel a part of described reciprocating stroke in the time; This spool portion 11 places in the said gas passage and seals said gas passage; In the time of near the said reciprocating stroke of the remainder of upper reaches end point of travel, this spool portion withdraws from said gas passage or does not withdraw from but can remove the sealing of gas passage, can pass in and out said gas passage and the said gas passage C of opening and closing of fault and open said gas passage;
One resetting-mechanism; It comprises two back-moving springs, and one of them is a little spring 7, and its two ends are against the blind end of said piston rod 3 and said upstream rear end respectively; Another is a retracting spring 8, and its two ends are against the blind end of said spool 1 and said upstream rear end respectively.
Said chamber spare comprises: a nozzle body 2, a connector 4 and a drive end bearing bracket 5.
Drive end bearing bracket 5, the said centre bore on the said drive end bearing bracket 5 is a through hole, sets firmly a glue spraying head 6 at the front end of this through hole, on the longitudinal axis of this glue spraying head 6, establishes said glue spout A; The said drive end bearing bracket gas passage section that perforation is set on every side equably of glue spout A on glue spraying head; Can also connect a connector 4 between said nozzle body 2 and the said drive end bearing bracket 5, centre bore is set on this connector 4 be communicated with said centre bore and the said glue channel section on the drive end bearing bracket 5 on the said nozzle body 2; Said glue import A is arranged on this connector 4; On this connector 4 the gas passage section is set also, is communicated with gas passage and said drive end bearing bracket gas passage section on the said nozzle body.
One rear end cap 9 forms said upper reaches back-end closure end, and this rear end cap 9 constitutes the structure that is tightly connected that is spirally connected with the said chamber section than minor diameter in said nozzle body 2 downstream.
The diameter range of said spray glue mouth A is 0.3～0.5mm.
In the size applicator provided by the invention; Also connector 4 can be set, this drive end bearing bracket with said centre bore corresponding position said glue passage is set, form the fit structure that sealing is slided with said piston; Front end in these glue channel section downstream is provided with the glue spout; On this drive end bearing bracket, also be provided with drive end bearing bracket gas passage section and be in communication with the outside, it is corresponding with the gas passage section on the said nozzle body and form complete gas passage, and said drive end bearing bracket and said nozzle body are fixedly connected.
In this high-pressure airless atomizing size applicator example that provides like Fig. 1; High-pressure airless atomizing glue applying method provided by the invention is performed such: glue increases pressure through high-pressure pump; Ejection forms the glue spray from size applicator, utilizes compressed air that the glue stream that from size applicator, sprays is carried out secondary-atomizing again.Said compressed air stream is looped around around the said glue stream.
The ejection pressure of said glue stream is controlled in 9～20MPa scope, and the compression pressure of said assisted atomization is controlled in 0～0.4MPa scope.
For example, use nozzle provided by the invention to make wood-based plate for the atomizing applying glue, the ejection pressure of glue stream is controlled at 15MPa, provides the compressed-air actuated pressure of assisted atomization to be controlled at 0.2MPa simultaneously.Pressure like liquid pectin stream is 18MPa, drips under the constant situation of granularity and uniformity requirement at atomizing glue and can suitably reduce the supplementary compressed air flowing pressure that provides.
Suitable feeding pipe is connected to glue import B and gas feed C to supply with the glue and the air of supercharging to nozzle.Behind the position that regulates rear end cap 9, pass to pressurized air, promote spool 1 and move to the back-end; Compression retracting spring 8, pressurization gas promote piston rod 3 and move, and are opened by the glue import that piston 31 blocks; The supercharging glue flows into the cavity that piston 31 and drive end bearing bracket 5 and glue spraying head 6 form through the glue import, and glue is through the glue spout ejection of glue spraying head 6, when piston rod 3 moves when opening glue-feeder; Make that sheathed spool 1 is retreated on it, pressure is enough, just can be so that the spool portion 11 on the spool 1 withdraws from the passage on the nozzle body 2; Pressurization gas flows to gas passage, and two airways up and down of nozzle body 2 are opened, and pressurized air flows into two gas passages up and down; Through two pores of symmetry up and down ejection of glue spraying head 6, be centered around the ejection glue around, realize effect to the glue spray secondary-atomizing of ejection.When turning off pressurized air,, make spool 1 get back to the home position through the restoring force of retracting spring 8; Close the pressurized air of assisted atomization, under the restoring force effect of little spring 7, make piston rod 3 be returned to the home position simultaneously; Close the glue import, stop glue-spraying spout work.Can realize the automatic control of no gas glue-spraying spout duty through external controller and magnetic valve, be convenient to batch production applying glue atomizing.
If need not provide compressed air to make secondary-atomizing, length that can control valve core 11 makes that gas passage is still blocked by spool portion 11 when promoting piston rod through compressed air and move the glue stream ejection pressure of opening Jiao Kou and setting being provided.
Claims (10)
1. a high-pressure airless atomizing glue applying method is characterized in that glue increases pressure through high-pressure pump, and ejection forms the glue spray from size applicator.
2. glue applying method according to claim 1 is characterized in that: introduce compressed air stream assisted atomization again, act on the glue stream that from size applicator, sprays, make this glue flow secondary-atomizing.
3. glue applying method according to claim 2 is characterized in that: said compressed air stream is looped around around the said glue stream.
4. glue applying method according to claim 1 is characterized in that: the ejection pressure of said glue stream is controlled in 9～20MPa scope.
5. according to claim 2 or 3 described glue applying methods, it is characterized in that: the ejection pressure of said glue stream is controlled in 9～20MPa scope; And/or the compressed-air actuated pressure of said assisted atomization is controlled in 0～0.4MPa scope.
6. high-pressure airless atomizing size applicator is characterized in that: comprising:
One chamber spare; Be provided with a chamber that connects on vertically on this chamber spare; The downstream front port of this chamber and the sealing of upper reaches rear port; On the blind end of front end, be provided with the glue passage and the gas passage that are in communication with the outside, the downstream port of glue passage forms the glue spout, and the downstream port of gas passage forms gas spout; This glue passage and gas passage all are communicated with said chamber; Be provided with the glue import at said glue passage, on this chamber sidewall, gas feed be set, these two imports are in communication with the outside;
One piston apparatus, it comprises a piston rod, and the downstream end of this piston rod is provided with piston, and it is arranged in the said glue passage hermetically and movably, in the reciprocating stroke of said piston rod, this piston closes or open said glue import; Also be provided with a spool on this piston rod, this valve core housing is located on the said piston rod, is positioned at the upper reaches one side of said piston, on the said piston rod to the upper reaches one end that should spool, is provided with the spacing convex shoulder of spool; Longitudinally constitute the said reciprocating stroke that the pilot seal structure that is slidingly matched forms said piston rod at this spool and said chamber; This spool convexes with spool portion on one side, chamber downstream; This lateral parts between the said spool portion is a pressure-bearing surface; The position of this spool portion and length in the vertical are: said piston rod is in a part of said reciprocating stroke near the downstream end point of travel; This spool is deployed in said gas passage and is sealed said gas passage; In near the said reciprocating stroke of the remainder of upper reaches end point of travel, this spool portion withdraws from said gas passage or does not withdraw from but can remove the sealing of gas passage and open said gas passage;
One resetting-mechanism, it comprises two back-moving springs, and the two ends of one of which are against the blind end of said piston rod and said upstream rear end respectively, and its two ends of two are against the blind end of said spool and said upstream rear end respectively.
7. high-pressure airless atomizing size applicator according to claim 6, it is characterized in that: said chamber spare comprises
One nozzle body; It is a cylindrical shell; In this cylindrical shell, be provided with the chamber section of a maximum gauge; Constitute the maximum said reciprocating stroke of said piston rod; The maximum periphery wall of the said spool that said piston rod is provided with and this chamber section inwall coupling; Two ends in this chamber section form the chamber section than minor diameter, constitute stroke by convex shoulder; The central part longitudinally than the said chamber section of minor diameter of downstream one side of said reciprocating stroke is provided with a centre bore that vertically runs through and glue channel connection; Supply said piston rod to pass; And be provided with a guide section in this centre bore section; With said pressure-bearing surface on the said spool be provided with one in the middle of guide part cooperate; It is parallel with this centre bore to be provided with at least two passages in the outside of this centre bore of this chamber section; Constitute the gas passage section on the nozzle body, the said spool portion that is provided with on the said spool is corresponding with said channel position;
One rear end cap forms said upper reaches back-end closure end, and the said chamber section than minor diameter at this rear end cap and the said nozzle body upper reaches constitutes the structure that is tightly connected that is spirally connected;
One drive end bearing bracket, this drive end bearing bracket with said centre bore corresponding position said glue passage is set, form the fit structure that sealing is slided with said piston, the front end in these glue channel section downstream is provided with the glue spout; On this drive end bearing bracket, also be provided with drive end bearing bracket gas passage section and be in communication with the outside, it is corresponding with the gas passage section on the said nozzle body and form complete gas passage, and said drive end bearing bracket and said nozzle body are fixedly connected.
8. high-pressure airless atomizing size applicator according to claim 7; It is characterized in that: also connect a connector between said nozzle body and the said drive end bearing bracket, centre bore is set on this connector is communicated with said centre bore and the said glue channel section on the drive end bearing bracket on the said nozzle body; This glue import is arranged on this connector; The gas passage section also is set on this connector, is communicated with gas passage and said drive end bearing bracket gas passage section on the said nozzle body.
9. according to claim 7 or 8 described high-pressure airless atomizing size applicators, it is characterized in that: the said centre bore on the said drive end bearing bracket is a through hole, sets firmly a glue spraying head at the front end of this through hole, on the longitudinal axis of this glue spraying head, establishes said glue spout; On glue spraying head the glue spout around the said drive end bearing bracket gas passage section of perforation is set equably, the said gas passage section connection on this drive end bearing bracket gas passage section and the corresponding component that is connected.
10. high-pressure airless atomizing size applicator according to claim 6; It is characterized in that: front end in said chamber downstream; In the middle of the outlet of said glue passage was arranged on, the outlet of said gas passage was two or more, and it is centered around the setting peripherally of said glue outlet; Perhaps,
Said centre bore on the said drive end bearing bracket is a through hole, sets firmly a glue spraying head at the front end of this through hole, on the longitudinal axis of this glue spraying head, establishes said glue spout; On glue spraying head the glue spout around perforation is set the gas passage section link up with extraneous, this gas passage section is communicated with said gas passage section on the said drive end bearing bracket; Perhaps,
The blind end of the rear end of said upstream is a rear end cap, and it is screwed onto on the said chamber spare, and the said back-moving spring in the said resetting-mechanism is against on this rear end cap; Perhaps,
Said spool is provided with guide part, and correspondingly, the spigot surface that is provided with a setting longitudinally in the said chamber contacts with said guide part cooperation, and the contact all the time in said piston rod reciprocating stroke of this guide part.
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| CN201110188125.8A CN102642233B (en) | 2011-07-06 | 2011-07-06 | High-pressure air-free atomization glue-applying method and device |
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| CN201110188125.8A CN102642233B (en) | 2011-07-06 | 2011-07-06 | High-pressure air-free atomization glue-applying method and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN109986664A (en) * | 2019-05-20 | 2019-07-09 | 国家林业和草原局北京林业机械研究所 | A kind of glue spraying high-efficient atomizing glue-spraying spout |
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| CN109986664A (en) * | 2019-05-20 | 2019-07-09 | 国家林业和草原局北京林业机械研究所 | A kind of glue spraying high-efficient atomizing glue-spraying spout |
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| Publication number | Publication date |
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| CN102642233B (en) | 2014-12-10 |
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