CN208230223U - pneumatic injection glue dispensing valve - Google Patents

Abstract

The utility model discloses a kind of pneumatic injection glue dispensing valves, including valve body, injector head, striker and regulating mechanism, injector head to be set to the bottom of valve body；Striker is slidably arranged on valve body and its lower end along the vertical direction and protrudes into injector head；Regulating mechanism includes pedestal, screw rod, thread bush and elastic component, and pedestal is installed on valve body, and pedestal has through-hole perforative along the vertical direction, and thread bush is arranged in through-hole and is locked by locking member and pedestal；Screw flight is socketed in thread bush, and the upper end of screw rod is pierced by from thread bush, and the lower end of screw rod and the upper end of striker have preset distance, to limit the stroke of striker；Elastic component is set between valve body and pedestal, and the upper end of elastic component and the lower end of thread bush offset, and the lower end of elastic component and the upper end of striker offset.Pneumatic injection glue dispensing valve according to the present utility model may be implemented out flow adhesive and spray the adjusting of pressure, meets dispensing needs, reach better dispensing effect.

Description

Pneumatic injection glue dispensing valve

Technical field

The utility model relates to spot gluing equipments, more particularly to a kind of pneumatic injection glue dispensing valve.

Background technique

Glue dispensing valve is dispensing machine equipment to realize product dispensing, gluing, encapsulating, the essential dispensing accessory of encapsulation, Its major function is to realize the transport of packaging plastic aqueous medium and in encapsulation process in the case where colloid, fluid generation water clock, Rapidly by glue resorption fluid stopping, to guarantee package quality.In simple terms, glue dispensing valve is exactly a kind of to be able to achieve moment and stop the special of glue Switch, is often used together with dispenser with glue pouring machine.There are commonly resorption type glue dispensing valve, ejector pin type glue dispensing valve, plunger type dispensings Valve, spraying type dispensing valve etc..

Wherein, spraying type dispensing valve pushes striker raised using high pressure gas, and pushes striker slamming down using spring Injector head, so that the glue in injector head is extruded and is applied to workpiece surface, that is to say, that pneumatic injection valve is in dispensing operation Glue is applied to by workpiece surface using spray mode, in this way, avoiding the z-axis movement in conventional contacts dispensing.However, related skill The spraying type dispensing valve of art, there are colloid flows and injection pressure to be not easy to the problems such as adjusting.

Utility model content

The utility model is intended to solve at least some of the technical problems in related technologies.For this purpose, this reality It is to propose a kind of pneumatic injection glue dispensing valve with novel purpose.

To achieve the above object, on the one hand, according to the pneumatic injection glue dispensing valve of the utility model embodiment, comprising:

Valve body；

Injector head, the injector head are set to the bottom of the valve body；

Striker, the striker are slidably arranged on the valve body and its lower end along the vertical direction and protrude into the injector head；

Regulating mechanism, the regulating mechanism include pedestal, screw rod, thread bush and elastic component, and the pedestal is installed on described On valve body, the pedestal has through-hole perforative along the vertical direction, and the thread bush is arranged in the through-hole and passes through locking Part is locked with the pedestal；

The screw flight is socketed in the thread bush, and the upper end of the screw rod is pierced by from the thread bush, described The lower end of screw rod and the upper end of the striker have preset distance, to limit the stroke of the striker；

The elastic component is set between the valve body and pedestal, and under the upper end of the elastic component and the thread bush End offsets, and the lower end of the elastic component and the upper end of the striker offset.

According to pneumatic injection glue dispensing valve provided by the embodiment of the utility model, thread bush is arranged in through-hole and passes through locking Part is locked with pedestal, and screw flight is socketed in thread bush, and the upper end of the lower end of screw rod and the striker has pre- spacing From to limit the stroke of the striker；Elastic component is set between the valve body and pedestal, and the upper end and the thread bush Lower end offsets, and the upper end of lower end and striker offsets, in this way, screw rod can be made to move up and down by rotary screw, to adjust spiral shell The distance between bar lower end and the upper end of striker, and then the stroke of striker is adjusted, furthermore, it is possible to release thread bush by locking member Between pedestal after locking state, rotation thread bush makes thread bush move up and down, to adjust the height and position of thread bush lower end, And then the initial length of elastic component is adjusted, it is adjusted as a result, by the initial length of the stroke adjustment of striker and elastic component, Ke Yishi Reveal flow adhesive and spray the adjusting of pressure, meets dispensing needs, reach better dispensing effect.

In addition, can also have following additional technology according to the pneumatic injection glue dispensing valve of the utility model above-described embodiment Feature:

One embodiment according to the present utility model, the pedestal have the first threaded hole communicated with the through-hole, institute The top that the coaxial arrangement of the first threaded hole is located at the through-hole is stated, the diameter of first threaded hole is less than the through-hole, described Screw rod is threadedly coupled with first threaded hole.

One embodiment according to the present utility model, the outer peripheral surface of the thread bush are equipped with friction annular knurl, the pedestal Side wall is equipped with hollow out mouth, and the hollow out mouth is communicated with the through-hole, to appear at least partly described friction annular knurl.

The upper end of one embodiment according to the present utility model, the screw rod is stretched out from first threaded hole and is arranged one The upper end of adjusting knob, the adjusting knob and the screw rod is circumferentially fixed, to drive the screw rod to rotate.

One embodiment according to the present utility model, the locking member include nut and adjusting screw, the side of the pedestal Wall is equipped with the second threaded hole communicated with through-hole, and the nut thread set assigned on the adjusting screw, wear by the adjusting screw It crosses the nut rear thread and is connected to second threaded hole.

One embodiment according to the present utility model, the valve body have plunger shaft, slideway and air flue, and the slideway is along upper Lower direction extends and communicates with the plunger shaft；

The striker includes piston portion and shank portion, and the piston portion is slideably positioned in the plunger shaft, the shank Portion's sliding is arranged in the slideway and connect with the piston portion；

The bottom wall of the lower surface of the piston portion, the inner wall of the plunger shaft and the plunger shaft limits variable gas jointly Room, one end of the air flue are connected to the variable gas chamber, and the other end of the air flue runs through the outer surface of the valve body；

The injector head is connected to the lower end of the slideway, and institute is limited between the lower end of the screw rod and the piston portion Preset distance is stated, the lower end of the elastic component offsets with the piston portion.

One embodiment according to the present utility model, is socketed with guide sleeve in the slideway, the shank portion be slidably socketed in In the guide sleeve.

One embodiment according to the present utility model, the injector head include:

Ejector block, the ejector block are installed on the bottom of the valve body, have glue spraying chamber, the injection in the ejector block The top surface of seat is equipped with the intercommunicating pore penetrated through with the glue spraying chamber, and the shank portion passes through the intercommunicating pore and protrudes into the glue spraying chamber, The side of the ejector block is equipped with the glue feeding opening penetrated through with the glue spraying chamber；

Nozzle, the nozzle are fixed on the bottom of the ejector block by locking nut and are connected to the glue spraying chamber.

One embodiment according to the present utility model is set between the periphery wall in the shank portion and the internal perisporium of the slide opening There is the first sealing ring, the second sealing ring is equipped between the periphery wall in the shank portion and the internal perisporium of the intercommunicating pore.

The additional aspect and advantage of the utility model will be set forth in part in the description, partially will be from following description In become obvious, or recognized by the practice of the utility model.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, the structure that can also be shown according to these attached drawings obtains other attached drawings.

Fig. 1 is the structural schematic diagram that the utility model embodiment pneumatically sprays glue dispensing valve；

Fig. 2 is the cross-sectional view that the utility model embodiment pneumatically sprays glue dispensing valve；

Fig. 3 is the first exploded view that the utility model embodiment pneumatically sprays glue dispensing valve；

Fig. 4 is the second exploded view that the utility model embodiment pneumatically sprays glue dispensing valve.

Appended drawing reference:

Valve body 10；

Plunger shaft 101；

Slideway 102；

Air flue 103；

Variable gas chamber 104；

First sealing ring 11；

Injector head 20；

Ejector block 201；

Nozzle 202；

Locking nut 203；

Second sealing ring 21；

Striker 30；

Piston portion 301；

Shank portion 302；

Regulating mechanism 40；

Pedestal 401；

Through-hole 4011；

First threaded hole 4012；

Hollow out mouth 4013；

Thread bush 402；

Rub annular knurl 4021；

Screw rod 403；

Elastic component 404；

Adjusting knob 405；

Locking member 41；

Adjust screw 411；

Nut 412；

Solenoid valve 50；

Feeding box 60.

The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.

Specific embodiment

The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and should not be understood as to the utility model Limitation, based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts Every other embodiment obtained, fall within the protection scope of the utility model.

In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " suitable The orientation or positional relationship of the instructions such as hour hands ", " counterclockwise " " axial direction ", " circumferential direction ", " radial direction " is orientation based on the figure Or positional relationship, be merely for convenience of describing the present invention and simplifying the description, rather than the device of indication or suggestion meaning or Element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as the limit to the utility model System.

In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include one or more of the features.The meaning of " plurality " is two or two in the description of the present invention, More than, unless otherwise specifically defined.

In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood as the case may be Concrete meaning in the present invention.

In the present invention unless specifically defined or limited otherwise, fisrt feature the "upper" of second feature or it "lower" may include that the first and second features directly contact, and also may include that the first and second features are not direct contacts but lead to Cross the other characterisation contact between them.Moreover, fisrt feature includes above the second feature " above ", " above " and " above " One feature is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.First is special Sign is directly below and diagonally below the second feature including fisrt feature under the second feature " below ", " below " and " below ", or only Indicate that first feature horizontal height is less than second feature.

The pneumatic injection glue dispensing valve of the utility model embodiment is described in detail with reference to the accompanying drawings.

Referring to figs. 1 to 4, according to pneumatic injection glue dispensing valve provided by the embodiment of the utility model, including valve body 10, Injector head 20, striker 30 and regulating mechanism 40.

Specifically, injector head 20 is set to the bottom of the valve body 10.Striker 30 is slidably arranged in institute along the vertical direction It states on valve body 10 and the injector head 20 is protruded into its lower end.That is, striker 30 can move along the vertical direction, wherein to It can be hit inside injector head 20 when lower movement, so that the glue in injector head 20 sprays.

Regulating mechanism 40 includes pedestal 401, screw rod 403, thread bush 402 and elastic component 404, and the pedestal 401 is installed on On the valve body 10, the pedestal 401 has through-hole 4011 perforative along the vertical direction, and the thread bush 402 is arranged in described It is locked in through-hole 4011 and by locking member 41 with the pedestal 401.

403 screw thread of screw rod is socketed in the thread bush 402, and the upper end of the screw rod 403 is worn from the thread bush 402 Out, the lower end of the screw rod 403 and the upper end of the striker 30 have preset distance, to limit the stroke of the striker 30.

Elastic component 404 is set between the valve body 10 and pedestal 401, and the upper end of the elastic component 404 and the spiral shell The lower end of line set 402 offsets, and the lower end of the elastic component 404 and the upper end of the striker 30 offset.

That is, thread bush 402 is threadedly coupled with screw rod 403, and thread bush 402 is by locking member 41 and base Seat 401 is fixed, and locking member 41 can carry out elastic adjusting, and then thread bush 402 and pedestal 401 is fixed or release solid It is fixed, when releasing fixed, thread bush 402 can be rotated.

Since the lower end of thread bush 402 and the upper end of elastic component 404 offset, so, it is transported by adjusting about 402 thread bush Dynamic, then the initial length of adjustable elastic component 404, that is to say, which can be used for the initial of elastic component 404 What length was adjusted.Specifically, unclamping thread bush 402 by locking member 41, then by thread bush 402 around direction one by one Rotation (counterclockwise), then thread bush 402 moves downward, and the lower end of thread bush 402 compresses downwards elastic component 404, so that spring Initial length shorten；And by thread bush 402 around opposite direction rotation (clockwise), then thread bush 402 moves upwards, elastic component 404 gradually discharge, so that the initial length of spring extends.

Due to having preset distance between the lower end of screw rod 403 and the upper end of striker 30, the stroke of striker 30 can be limited So being moved up and down by adjusting screw rod 403, then the stroke of adjustable striker 30, that is to say, which can be used for The stroke of striker 30 is adjusted.Specifically, then screw rod 403 is transported downwards by screw rod 403 around the rotation (clockwise) of a direction Dynamic, the distance between 403 lower end of screw rod and 30 upper end of striker reduce, at this point, the distance that striker 30 moves up and down reduces, play and subtract The purpose of small stroke；And by screw rod 403 around opposite direction it is (counterclockwise) rotation, then screw rod 403 moves upwards, 403 lower end of screw rod with The distance between 30 upper end of striker increases, at this point, the distance that striker 30 moves up and down increases, plays the purpose for increasing stroke.

According to pneumatic injection glue dispensing valve provided by the embodiment of the utility model, thread bush 402 is arranged in through-hole 4011 simultaneously Be locked by locking member 41 and pedestal 401,403 thread bush 402 of screw rod is connected in thread bush 402, the lower end of screw rod 403 with The upper end of the striker 30 has preset distance, to limit the stroke of the striker 30；Elastic component 404 is set to the valve body 10 Between pedestal 401, and the upper end and the lower end of the thread bush 402 offset, and lower end and the upper end of striker 30 offset, in this way, Screw rod 403 can be made to move up and down by rotary screw 403, between 403 lower end of adjusting screw rod and the upper end of striker 30 Distance, and then the stroke of striker 30 is adjusted, it is locked between thread bush 402 and pedestal 401 furthermore, it is possible to be released by locking member 41 After state, rotation thread bush 402 makes thread bush 402 move up and down, to adjust the height and position of 402 lower end of thread bush, in turn The initial length of elastic component 404 is adjusted, is adjusted as a result, by the initial length of the stroke adjustment of striker 30 and elastic component 404, it can To realize out flow adhesive and spray the adjusting of pressure, meets dispensing needs, reach better dispensing effect.

Referring to shown in Fig. 2, in one embodiment of the utility model, pedestal 401 has to be communicated with the through-hole 4011 The first threaded hole 4012, first threaded hole 4012 coaxial arrangement is located at the top of the through-hole 4011, first spiral shell The diameter of pit 4012 is less than the through-hole 4011, and the screw rod 403 is threadedly coupled with first threaded hole 4012, that is, It says, screw rod 403 was both threadedly coupled with thread bush 402, can in this way, structure is more firm by being threadedly coupled with pedestal 401 again It leans on, moreover, assembly is more convenient.

Advantageous, the outer peripheral surface of thread bush 402 is equipped with friction annular knurl 4021, and the side wall of the pedestal 401 is equipped with hollow out mouth 4013, the hollow out mouth 4013 is communicated with the through-hole 4011, to appear at least partly described friction annular knurl 4021.In this way, When needing to adjust thread bush 402, it can be touched on the friction annular knurl 4021 that hollow out mouth 4013 goes out by finger, apply active force The rotation of thread bush 402 can be driven, so that thread bush 402 moves up and down and realizes the adjusting of 404 initial length of elastic component, Operation is adjusted to thread bush 402 convenient for user in it, meanwhile, it is simple and compact for structure.

More favorably, an adjusting knob 405 is stretched out from first threaded hole 4012 and be arranged in the upper end of screw rod 403, The upper end of the adjusting knob 405 and the screw rod 403 is circumferentially fixed, to drive the screw rod 403 to rotate, in this way, needing When adjusting screw rod 403, power drive screw rod 403 can be acted on by 405 application of adjusting knob and rotated, so that about 403 screw rod It moves and realizes the adjusting of 30 stroke of striker, be convenient to user and operation is adjusted to screw rod 403, meanwhile, structure is simple It is compact.

Shown in referring to Figure 2 to Figure 4, in some embodiments of the utility model, locking member 41 includes nut 412 and adjusts Screw 411, the side wall of the pedestal 401 are equipped with the second threaded hole communicated with through-hole 4011,412 thread bush 402 of nut Assigned on the adjusting screw 411, the adjusting screw 411 passes through 412 rear thread of nut and is connected to second screw thread Hole.

In this way, stretching to the length on pedestal 401 in through-hole 4011 by the adjustable screw 411 of rotary screw, in turn Thread bush 402 in through-hole 4011 is locked, after screw locks thread bush 402, by adjusting nut 412, so that nut 412 offset with pedestal 401, then can will adjust screw 411 and pedestal 401 is fixed, it is ensured that thread bush 402 is locked solid and reliable.

Referring to shown in Fig. 2, in some embodiments of the utility model, valve body 10 have plunger shaft 101, slideway 102 and Air flue 103, the slideway 102 are vertically extended and are communicated with the plunger shaft 101.Striker 30 include piston portion 301 and Shank portion 302, the piston portion 301 are slideably positioned in the plunger shaft 101, and the sliding of shank portion 302 is arranged in described It connect, that is to say, piston portion 301 can move up and down in plunger shaft 101, due to needle in slideway 102 and with the piston portion 301 Bar portion 302 is slidably arranged in slideway 102 and connect with piston portion 301, so, when piston portion 301 moves up and down, it can drive Shank portion 302 slides up and down in slideway 102.

The bottom wall of the lower surface of piston portion 301, the inner wall of the plunger shaft 101 and the plunger shaft 101 limits jointly Variable gas chamber 104, one end of the air flue 103 are connected to the variable gas chamber 104, and the other end of the air flue 103 runs through institute State the outer surface of valve body 10.The air flue 103 is pushed by high pressure gas and is lived for being filled with high pressure gas into variable gas chamber 104 Piston part 301 moves upwards.

Injector head 20 is connected to the lower end of the slideway 102, between the lower end and the piston portion 301 of the screw rod 403 The preset distance is limited, the lower end of the elastic component 404 offsets with the piston portion 301.

It is understood that the pneumatic injection glue dispensing valve further includes solenoid valve 50 and feeding box 60, solenoid valve 50 and air flue 103 other end connection, and feeding box 60 is connected to injector head 20, when solenoid valve 50 is in first state, external air source High pressure gas is filled with into air flue 103 by the solenoid valve 50, high pressure gas is entered in variable gas chamber 104 by air flue 103, And then piston portion 301 is pushed to move upwards in plunger shaft 101, elastic component 404 is compressed, band when piston portion 301 moves upwards Dynamic striker 30 is moved upwards along slideway 102, at this point, injector head 20 is gradually left in the lower end of striker 30；When solenoid valve 50 from first When state switches to the second state, external air source stops gas supply, and elastic component 404 discharges elastic potential energy and extends, and drives striker 30 It moves downward, at this point, the lower end of striker 30 is rapidly entered with certain speed to injector head 20, so that the glue in injector head 20 Liquid sprays after the impact by striker 30, in this way, realizing the driving of striker 30, and sprays glue using the movement of striker 30 Liquid, structure is simple, and striker 30 moves reliably, and dispensing effect is good.

In one embodiment of the utility model, guide sleeve is socketed in slideway 102, the shank portion 302 is slidably socketed In in the guide sleeve, in this way, cooperating using guide sleeve and shank portion 302,302 movement warp of shank portion can be made smaller, glue spraying It is relatively reliable.

Referring to shown in Fig. 3 to Fig. 4, in one embodiment of the utility model, injector head 20 includes ejector block 201 and spray Mouth 202, ejector block 201 are installed on the bottom of the valve body 10, have glue spraying chamber, the ejector block 201 in the ejector block 201 Top surface be equipped with the intercommunicating pore 4011 that penetrate through with the glue spraying chamber, the shank portion 302 protrudes into institute across the intercommunicating pore 4011 Glue spraying chamber is stated, the side of the ejector block 201 is equipped with the glue feeding opening penetrated through with the glue spraying chamber；Nozzle 202 passes through locking nut 412203 are fixed on the bottom of the ejector block 201 and are connected to the glue spraying chamber.

In a particular application, glue feeding opening is connected to feeding box 60, and feeding box 60 provides glue and enters to spray by glue feeding opening Glue is intracavitary, when shank portion 302 is slided up and down with piston portion 301, can continuously be impacted to the intracavitary glue of glue spraying, and then make The glue obtained in fluid ejection chamber is sprayed from nozzle 202, and structure is simple, easy to assembly.

Referring to shown in Fig. 2, in one embodiment of the utility model, the periphery wall in shank portion 302 and the slide opening The first sealing ring 11 is equipped between internal perisporium, between the periphery wall in the shank portion 302 and the internal perisporium of the intercommunicating pore 4011 Equipped with the second sealing ring 21, so, it can be ensured that variodenser has good air-tightness.

In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term It states and is necessarily directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be with It can be combined in any suitable manner in any one or more of the embodiments or examples.In addition, without conflicting with each other, this field Technical staff can by the feature of different embodiments or examples described in this specification and different embodiments or examples into Row combination and combination.

The above is only the preferred embodiment of the present invention, and therefore it does not limit the scope of the patent of the utility model, Under all utility models in the utility model are conceived, equivalent structure made based on the specification and figures of the utility model Transformation, or directly/be used in other related technical areas indirectly and be included in the scope of patent protection of the utility model.

Claims (9)

1. a kind of pneumatic injection glue dispensing valve characterized by comprising

Valve body；

Injector head, the injector head are set to the bottom of the valve body；

Striker, the striker are slidably arranged on the valve body and its lower end along the vertical direction and protrude into the injector head；

Regulating mechanism, the regulating mechanism include pedestal, screw rod, thread bush and elastic component, and the pedestal is installed on the valve body On, the pedestal has a through-hole perforative along the vertical direction, the thread bush be arranged in the through-hole and by locking member with The pedestal is locked；

The screw flight is socketed in the thread bush, and the upper end of the screw rod is pierced by from the thread bush, the screw rod Lower end and the striker upper end have preset distance, to limit the stroke of the striker；

The elastic component is set between the valve body and pedestal, and the lower end phase of the upper end of the elastic component and the thread bush It supports, the lower end of the elastic component and the upper end of the striker offset.

2. pneumatic injection glue dispensing valve according to claim 1, which is characterized in that the pedestal has to be communicated with the through-hole The first threaded hole, first threaded hole coaxial arrangement is located at the top of the through-hole, and the diameter of first threaded hole is small In the through-hole, the screw rod is threadedly coupled with first threaded hole.

3. pneumatic injection glue dispensing valve according to claim 2, which is characterized in that the outer peripheral surface of the thread bush is equipped with friction The side wall of annular knurl, the pedestal is equipped with hollow out mouth, and the hollow out mouth is communicated with the through-hole, to appear at least partly described friction Annular knurl.

4. pneumatic injection glue dispensing valve according to claim 2, which is characterized in that the upper end of the screw rod is from first spiral shell Pit stretches out and is arranged an adjusting knob, and the upper end of the adjusting knob and the screw rod is circumferentially fixed, to drive the screw rod Rotation.

5. pneumatic injection glue dispensing valve according to claim 1, which is characterized in that the locking member includes nut and adjusting spiral shell Nail, the side wall of the pedestal are equipped with the second threaded hole communicated with the through-hole, and the nut thread set is assigned in the adjusting spiral shell It nails on, the adjusting screw passes through the nut rear thread and is connected to second threaded hole.

6. pneumatic injection glue dispensing valve according to claim 1, which is characterized in that the valve body have plunger shaft, slideway and Air flue, the slideway are vertically extended and are communicated with the plunger shaft；

The striker includes piston portion and shank portion, and the piston portion is slideably positioned in the plunger shaft, and the shank portion is sliding It is dynamic to be arranged in the slideway and connect with the piston portion；

The bottom wall of the lower surface of the piston portion, the inner wall of the plunger shaft and the plunger shaft limits variable gas chamber jointly, One end of the air flue is connected to the variable gas chamber, and the other end of the air flue runs through the outer surface of the valve body；

The injector head is connected to the lower end of the slideway, is limited between the lower end of the screw rod and the piston portion described pre- Set a distance, the lower end of the elastic component offset with the piston portion.

7. pneumatic injection glue dispensing valve according to claim 6, which is characterized in that guide sleeve is socketed in the slideway, it is described Shank portion is slidably socketed in the guide sleeve.

8. pneumatic injection glue dispensing valve according to claim 6, which is characterized in that the injector head includes:

Ejector block, the ejector block are installed on the bottom of the valve body, have glue spraying chamber in the ejector block, the ejector block Top surface is equipped with the intercommunicating pore penetrated through with the glue spraying chamber, and the shank portion passes through the intercommunicating pore and protrudes into the glue spraying chamber, described The side of ejector block is equipped with the glue feeding opening penetrated through with the glue spraying chamber；

Nozzle, the nozzle are fixed on the bottom of the ejector block by locking nut and are connected to the glue spraying chamber.

9. pneumatic injection glue dispensing valve according to claim 6, which is characterized in that the periphery wall in the shank portion and the cunning It is equipped with the first sealing ring between the internal perisporium in hole, the is equipped between the periphery wall in the shank portion and the internal perisporium of the intercommunicating pore Two sealing rings.