CN202129197U

CN202129197U - Check adhesive dispensing valve of piston

Info

Publication number: CN202129197U
Application number: CN201120147691U
Authority: CN
Inventors: 罗世椿
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-05-11
Filing date: 2011-05-11
Publication date: 2012-02-01
Anticipated expiration: 2021-05-11

Abstract

The utility model provides a check adhesive dispensing valve of a piston, which comprises a hollow liquid collecting cylinder with a liner. Two ends of the hollow liquid collecting cylinder are provided with an adhesive extracting flange and an adhesive outlet flange for sealing respectively, a central hole is arranged in the adhesive extracting flange so that the piston is arranged in the hollow liquid collecting cylinder in a penetrating manner, more than one group of check valves is fittingly arranged in the piston, the piston reciprocates in the hollow liquid collecting cylinder so that compressing extrusion and stretching and sucking extraction are realized, and the piston is matched with an adhesive outlet adjusting device on the adhesive outlet flange, a needle rest and a through hole pressing screw. A through hole at the tail end of the piston is connected with a pipe joint so that a pipe fitting is connected to an adhesive liquor drum, and then adhesive dispensing operation can be completed continuously. By means of the design, frequent pouring and supplementing of adhesive liquor are not needed, and equipment cost and replacement hours can be reduced greatly, so that productivity is improved.

Description

Piston reverse-resistance type glue dispensing valve

Technical field

It is relevant that the utility model discloses a kind of piston reverse-resistance type structure; Be used in the operation that comprises a glue and quantitative filling liquid; Especially refer to that a kind of the need directly come start with air voltage source; And have the adjusting gel quantity, and the mechanism assembly of the direct mat creation of ability itself can reach and suck the innovation glue dispensing valve design of drawing, extruding glue.

Background technology

See also shown in Figure 1ly, the some glue operation of commonly using is used an injection needle tube and is come splendid attire point glue, with the injection glue in the workpiece place; Its shortcoming is that the needle cylinder injection liquid measure is limited, when glue, need repeat filling, and be difficult to quantitatively adjust the gel quantity of single, is only applicable in the part operation of a small amount of plastic emitting.

See also shown in Figure 2; Commonly use the manual point gum machine that can quantize operation at present; All mat one pneumatics controller box 104 is set flow and the pressure that injects air-compressed gas; And be communicated to some plastic pin tubes 101 with a pipe fitting 102, in order to promote the plunger of 101 li of syringes, glue can quantitatively be extruded from a dispensing needle head 100.

See also shown in Figure 3; There is another kind to commonly use the some glue mode of the pressure measuring cylinder 107 of glue dispensing valve 106 collocation barreled glues again; Be that mat is squeezed into air pressurized; With one manually or 105 controls of pedal switch, make the barreled glue be expressed into a glue valve 106, and move the extrusion capacity of controlling glue by these glue valve 106 gauge taps through a pipe fitting 102.

Three kinds of situations that the above is commonly used, except injection needle tube be manually, other binomials all directly promote glue with air pressure, this has six shortcomings:

1. forced air is stored in pneumatics controller box 104 and the pressure measuring cylinder 107, uses promoting the glue body,, promptly can't work if do not store air voltage source.

2. put the piston of 101 li in plastic pin tube, mat stores forced air and promotes glue, and this forced air contains saturated aqueous vapor and assembles, easily the deadlocked quality of pollution effect.

3. commonly use point gum machine, its whole group part is numerous, and the utility model is obviously simple to operation.

4. commonly use manual point gum machine, see Fig. 2, finite capacity, the frequency of replenishing glue is frequent, the time cost of waste filling and standby.

5. do not having electric power not have the workplace place of pneumatic supply, just can't operation.

6. commonly using the fixation of dispensing needle head, is to be two screw thread fixations, and this syringe needle is different with the syringe needle fixed form that general medical circles use, so generally must use pair screw thread fixations, the syringe needle that can't use general medical circles to use with putting glue work; Right the utility model pin pillow fixation, but then both are general.

Summary of the invention

The purpose of the utility model is; Provide a kind of piston reverse-resistance type glue dispensing valve that does not need directly to promote to use to the viscose liquid industry with air pressure; Especially refer to be used for use in the current limliting amount is filled and adhesion attaches the operation, come directly to suck with himself motion of mechanism and draw and extrude glue.

Be architectural feature and the technology contents of reaching above-mentioned purpose, a kind of piston reverse-resistance type of the utility model glue dispensing valve, it comprises:

One hollow liquid collecting cylinder body, its cylinder interior is provided with a liner, and each sealing of two ends is provided with one and draws a glue flange and a plastic emitting flange, and wherein, this draws the glue flange and runs through and be provided with a mesopore, and runs through in the middle of this plastic emitting flange and be provided with a plastic emitting runner;

One piston; The one of which end is extended through hollow liquid collecting cylinder interior from this mesopore, and can in it, produce reciprocating motion, and this piston other end place is equipped with a pipe joint; This pipe joint with at least one be located at internal piston draw the solation road to be communicated in hollow liquid collecting cylinder interior; And this pipe joint can be provided with a pipe fitting and be attached to one and supply to store in the glue tube of glue, and wherein, this draws the solation road is a taper hole runner with respect to an end of this hollow liquid collecting cylinder interior;

One group of above check (non-return) valve, it is arranged in each taper hole runner of internal piston, and is spacing so that the glue in this glue tube produces one-way flow;

One is located at the plastic emitting adjusting device in the plastic emitting runner, its movable gel quantity that adjusts the solation road;

One is arranged on the some plastic pin on the plastic emitting flange, and this plastic pin is communicated in the port of export place of plastic emitting runner; And

One connect mechanism, it is located at the end that this piston exposes to hollow liquid collecting cylinder body, can drive the power source of reciprocating motion of the pistons for binding one.

Wherein, this hollow liquid collecting cylinder body is provided with a liner, and this liner is arranged at hollow liquid collecting cylinder interior with the mode of insertion or coating, and this piston and liner contact friction place, is provided with the above leak-stopping closed loop in a place.

Wherein, this check (non-return) valve flows into end by one and an outflow end is formed, and the area of section held of this inflow is less than or equal to the area of section of this outflow end, moreover the end that this inflow is held is that one hemispherical, taper or check (non-return) valve push up a ball.

Preferably, the sidewall on every side that this check (non-return) valve flows into end is provided with at least one flow path groove, and this flow path groove can be made croze shape, arc groove shape, sharp groove shape and helicla flute shape.

Preferably, the sidewall that this taper hole runner contacts with the check (non-return) valve outflow end is provided with at least one runner, and this runner can be made croze shape, arc groove shape, sharp groove shape and helicla flute shape, or periphery is axially opened more than one hole.

Wherein, this hollow liquid collecting cylinder body and piston space are provided with the resetting spring in order to the strength of strengthening this piston elastic reset.

Wherein, the periphery of this piston is concaved with at least one keyway that it axially is provided with that is parallel to, and this draws flange to should the keyway place, fixingly screws in or inserts a column hold-down screw or a cylindrical pin, makes piston produce the effect of sliding and position limitation.

Wherein, be provided with the flexible through hole pin pillow of a tool between this plastic pin and plastic emitting flange, and a plastic pin and through hole pin pillow be locked in the opening part of plastic emitting runner with a pressing screw.

Wherein, an end of the nearly hollow liquid collecting of this plastic emitting runner cylinder body be provided with one be gradually-reducing shape valve port, and this plastic emitting adjusting device include two be located at the nearly valve port of plastic emitting runner place the pearl ball; Be provided with a spring between this two pearls ball, and a plastic emitting adjusting knob, this plastic emitting adjusting knob has one and stretches through into the wedge pin in this plastic emitting runner; Be adjacent to the pearl ball of a plastic pin with pushing tow; The preparatory power of the compression of control spring, and change the adaptation between pearl ball and valve port by this, to regulate the flow quantity that of glue.

Wherein, being screwed together in the piston place, and this spiro tooth part interlude is a no threaded section to this pipe joint with a spiro tooth part, and connects at this no threaded section periphery and to be provided with at least one hole of drawing the solation road that is communicated in.

The beneficial effect of the utility model is, design by this can use or be attached on various machineries and mechanism or manual the use, can significantly reduce the quantity of assembly element, and dismounting is cleaned easily, saves the time of the many preposition preparations and the glue that changes the outfit.Totally unnecessary use is expensive, like pneumatics controller box and syringe can filler machine; The utility model is oversimplified its element, and the adjustable function of plastic emitting, will add the scope of application of a little bigger glue, can be used in the middle of every field and the weightless environment, can significantly reduce the spot gluing equipment cost, promotes operating efficiency.

Description of drawings

Fig. 1: commonly use the injection needle tube stereo appearance figure.

Fig. 2: commonly use manual spot-gluing machine stereo appearance figure.

Fig. 3: commonly use glue valve and pressure measuring cylinder stereo appearance figure.

Fig. 4: the three-dimensional exploded view of the utility model piston reverse-resistance type glue dispensing valve.

Fig. 5: the stereo appearance figure of the utility model piston reverse-resistance type glue dispensing valve.

Fig. 6: the three-dimensional part sectioned view of the utility model piston reverse-resistance type glue dispensing valve.

Fig. 7: the profile of the utility model piston reverse-resistance type glue dispensing valve.

Fig. 8 A-C: the check (non-return) valve of the utility model piston reverse-resistance type glue dispensing valve is implemented illustration, and wherein Fig. 8 A is a hemispherical, and Fig. 8 B is taper, and Fig. 8 C is that flat-top touches pearl sphere.

Fig. 9 A-E: the check (non-return) valve flow path groove of the utility model piston reverse-resistance type glue dispensing valve is implemented illustration; Wherein Fig. 9 A is the profile of the check (non-return) valve of Fig. 9 B along A-A; Fig. 9 C, Fig. 9 D, Fig. 9 E are the profile of the check (non-return) valve of Fig. 9 B along B-B; The flow path groove that Fig. 9 C shows is a croze shape, and the flow path groove that Fig. 9 D shows is an arc, and the flow path groove that Fig. 9 E shows is pointed.

Figure 10 A-B: the check (non-return) valve flow path groove of the utility model piston reverse-resistance type glue dispensing valve is implemented illustration, and wherein Figure 10 B is the profile of the check (non-return) valve of Figure 10 A along A-A, and the flow path groove that wherein shows is spiral-shaped.

Figure 11 A-D: the runner of the utility model piston reverse-resistance type glue dispensing valve taper hole runner is implemented illustration; Wherein Figure 11 A, 11B, 11C are the profile of the check (non-return) valve of Figure 11 D along A-A; The runner that Figure 11 A shows is a croze shape, and the runner that Figure 11 B shows is an arc, and the runner that Figure 11 C shows is pointed.

Figure 12 A-B: the runner of the utility model piston reverse-resistance type glue dispensing valve taper hole runner is implemented illustration, and wherein Figure 12 A is the profile of the check (non-return) valve of Figure 12 B along A-A, and the runner that wherein shows is a spirality.

Figure 13 A-B: the runner of the utility model piston reverse-resistance type glue dispensing valve taper hole runner is implemented illustration, and wherein Figure 13 A is the profile of the check (non-return) valve of Figure 13 B along A-A, and the runner that wherein shows is axially established at least one runner hole in taper hole runner periphery.

Figure 14: the utility model piston reverse-resistance type glue dispensing valve draw glue action sketch map.

Figure 15: the plastic emitting action sketch map of the utility model piston reverse-resistance type glue dispensing valve.

Figure 16: the utility model is applied in the enforcement view of manual some glue operation.

Figure 17: the utility model is applied in the operation of gas-hydraulic cylinder point glue and implements view.

Figure 18: the utility model is applied in the operation of gas-hydraulic cylinder point glue and is fixed on mechanism or figure mechanically implements view with fixed support.

The specific embodiment

And be to make technological means of the utility model and the effect that can reach thereof, express with specific embodiment now.Various different elements among the embodiment are drawn in the ratio that is suitable for explaining, close chat earlier bright.And in the following explanation, similar elements is to represent with identical numbering.

Graphic and the figure number of just please consulting exposure in the lump also specifies as follows:

This case application example was divided into for three stages to explain, and divided

I, be the composition explanation of piston reverse-resistance type glue dispensing valve

II, be the derivative form explanation of check (non-return) valve and mating holes

III, be the explanation of the operating principle of piston reverse-resistance type glue dispensing valve

I, at first, a kind of piston reverse-resistance type of assembling the utility model glue dispensing valve 99 sees also Fig. 4～shown in Figure 7, and it comprises:

One hollow liquid collecting cylinder body 10, the liquid collecting room 321 that has a hollow in it, wherein, 10 inner insertions of hollow liquid collecting cylinder body or coating are provided with a liner 32, and these liner 32 materials can be complied with corrosion-resistant degree, and materials such as suitable metal or plastic cement are used in decision.

Wherein, each sealing of hollow liquid collecting cylinder body 10 two ends is provided with one and draws a glue flange 70 and a plastic emitting flange 30; This draws glue flange 70 mat screw threads or more than one screw and hollow liquid collecting cylinder body 10 and links into an integrated entity, and this draws to run through on the glue flange 70 and is provided with a mesopore 72; And these plastic emitting flange 30 mat screw threads or more than one screw 14 are locked in hollow liquid collecting cylinder body 10 places; And plastic emitting flange 30 has a circular groove, is be inserted in leak-stopping O shape ring 31 and 10 sealings of hollow liquid collecting cylinder body, uses the effect that reaches leak-stopping, moreover, run through being provided with a plastic emitting runner 37 in the middle of this plastic emitting flange 30.

One piston 60; The one of which end stretches through from this mesopore 72 that draws glue flange 70 and is inserted in this hollow liquid collecting cylinder body 10; And mat piston 60 terminal connect mechanisms that are provided with; The power parts that link external power source, this connect mechanism can be a hold-down screw 66 and nut 65, make piston 60 do the straight reciprocating motion with respect to cylinder body; All manual or gas-liquid power or magnetic dynamic or mechanism's theory of mechanics are like cam, eccentric wheel, linkage etc., all uses of all can arranging in pairs or groups.Liner 32 contact frictions place of this piston 60 and hollow liquid collecting cylinder body 10 are provided with the above leak-stopping closed loop 61 in a place.

One pipe joint 64 is connected on the terminal edge of piston 60, and this pipe joint 64 draws solation road 703 with one and be communicated in hollow liquid collecting cylinder body 10 inside, sees Figure 16～Figure 18, and this pipe joint 64 links a pipe fitting 102 and leads in the glue tube 103, sucks and draws glue; These piston 60 peripheries are provided with at least one keyway 701 that piston 60 axially is provided with that is parallel to; And this draws the radially corresponding keyway of glue flange 70 701 places; Fix screw-in or insert a column hold-down screw 71 or a cylindrical pin, piston 60 slippages are limited in the travel range of this keyway 701.

At least one group of above check (non-return) valve 62, this draws solation road 703 is the taper hole runner 702 that a diameter of section increases with respect to these hollow liquid collecting cylinder body 10 inner ends; This check (non-return) valve 62 is arranged at the bigger diameter end place of the taper hole runner 702 of piston 60 inside; Make to produce unidirectional non-return function, the class vacuum pressure that is produced during these piston 60 motions is poor, can suck and push check (non-return) valve 62; Make and reach the purpose of opening or closing taper hole runner 702; And the glues in the glue tube 103 are sinked from pipe joint 64, and flow into by an end of this check (non-return) valve 62, flow out to hollow liquid collecting cylinder body 10 through check (non-return) valve 62 backs by the other end.This check (non-return) valve 62 can be made as by flowing into the valve body that end 63 and outflow end 626 are formed, and the area of section of this inflow end 63 is less than or equal to the area of section of outflow end 626; The ratio of this two sections area can be made suitable design according to the flow behavior of sucking glue and use.

One plastic emitting adjusting device, an end of these plastic emitting runner 37 nearly hollow liquid collecting cylinder bodies 10 be provided with one be gradually-reducing shape valve port 371, and this plastic emitting adjusting device include two be located at plastic emitting runner 37 nearly valve ports 371 places pearl ball 33; This 33 in two pearls ball is provided with a spring 34; And a plastic emitting adjusting knob 13, a guide hole is established at its edge in plastic emitting flange 30, stretches through in this plastic emitting runner 37 for a wedge pin 35; But contiguous wherein relative pearl ball 33 surfaces of these wedge pin 35 pushing tows away from valve port 371; With the preparatory power of the compression of control spring 34, and change the adaptation of 371 of another pearl ball 33 that contacts at valve port 371 and valve ports by this, to regulate the flow quantity that of glue.Moreover these wedge pin 35 peripheral edge surface are concaved with one and are parallel to its axial groove, and a pilot pin 12 is inserted in the groove of wedge pin 35 from plastic emitting flange 30, make this wedge pin 35 can only do rectilinear motion and do not rotate; These plastic emitting adjusting knob 13 peripheral edge surface are equipped with a V groove again; One knob bayonet lock 11 inserts from plastic emitting flange 30 and is stuck in the V groove of plastic emitting adjusting knob 13, and plastic emitting adjusting knob 13 location firmly can be rotated again, makes to be unlikely to slippage; Wherein, This plastic emitting adjusting knob 13 is the person that each other is not spirally connected with wedge pin 35, with when this plastic emitting adjusting knob 13 rotates, drives this wedge pin 35 and stretches into or shift out toward plastic emitting runner 37 directions;

One pressing fixture comprises through hole pin pillow 40, and this through hole pin is rested the head on the sealing elasticity that 40 materials must possess appropriateness, and this through hole pin pillow 40 is arranged on the exit of plastic emitting flange 30 plastic emitting runners 37; Screwing of mat one through hole pressing screw 41, but some plastic pins 100 and any injection needle 100 are loaded onto and unloaded to Simple and Reliable, and do not leak.

One involution compression spring 20, also visual operation is strengthened being located in the liquid collecting room 321 of hollow liquid collecting cylinder body 10, between plastic emitting flange 30 and piston 60, to strengthen the speed and the strength of these piston 60 involutions.

Make up above allomeric function, by the reciprocating motion of this piston 60, can make the volume expansion or the compression of this liquid collecting room 321, the user can make the volume expansion of liquid collecting room 321, goes into cylinder body 10 to suck the glue that draws in the glue container 103; The volume of mat liquid collecting room 321 is compressed again then, and with the glue in the liquid collecting room 321, is expressed on the working substance through some plastic pin 100.

After II, the clear combinations thereof function, below do an explanation to the derivative form of the utility model again, its main purpose is that the glue circulation is strengthened, and reduces resistance, and hoist point glue efficient sees also Fig. 8 A～Figure 13 B.

See also Fig. 8 A-C; The end that this check (non-return) valve 62 flows into end 63 can be hemispherical 627 (shown in Fig. 8 A) of this example; Also can derive to taper 628 (shown in Fig. 8 B) or check (non-return) valve 62 top one spherosomes 629 (shown in Fig. 8 C), make this check (non-return) valve 62 when the volume expansion of liquid collecting room 321 produces suction, the end that this check (non-return) valve 62 flows into end 63 can be thrown off with taper hole runner 702 smoothly; And when the volume of liquid collecting room 321 compressed, driving fit was in this taper hole runner 702 really.

For making the glue check (non-return) valve 62 of can flowing through smoothly; See also Fig. 9 A-E, Figure 10 A-B again; The periphery that this check (non-return) valve 62 flows into end 63 is concaved with at least one flow path groove 621, and this flow path groove 621 can be regardless of shape and be made like the helicla flute shape 625 (shown in Figure 10 A, 10B) of croze shape 622 (shown in Fig. 9 C), arc groove shape 623 (shown in Fig. 9 D), sharp groove shape 624 (shown in Fig. 9 E) and various types etc.; And on sidewall around the section of outflow end 626; Then do not do any groove (shown in Fig. 9 A, Fig. 9 B); Make taper hole runner 702 and check (non-return) valve 62 outflow end 626 driving fits each other; Resistance when these flow path groove 621 then can be convenient to reduce check (non-return) valve 62 and open, and make the glue check (non-return) valve 62 of can flowing through smoothly.

In addition; See also Figure 11 A-D, Figure 12 A-B, Figure 13 A-B; The taper hole runner 702 of this piston 60 and check (non-return) valve 62 flows into end 63 anchor ring that contacts can be provided with first-class at least road groove 607 (shown in Figure 11 D, Figure 12 B, Figure 13 B), also can not do any groove and make taper hole runner 702 flow into end 63 driving fits each other at check (non-return) valve 62; And taper hole runner 702 then must have more than one runner 601 on the axial anchor ring peripheral side wall of check (non-return) valve 62 outflow ends 626; This runner 601 is regardless of shape can make helicla flute shape 605 (shown in Figure 12 A) like croze shape 602 (shown in Figure 11 A), arc groove shape 603 (shown in Figure 11 B), sharp groove shape 604 (shown in Figure 11 C) and various types etc.; Or periphery is axially opened more than one runner hole 606 (shown in Figure 13 A); Come to do relative unlatching, make the glue check (non-return) valve 62 of flowing through smoothly with check (non-return) valve 62; When closing relatively, check (non-return) valve 62 cuts out runner blocking-up glue and flows through.

After III, the clear combinations thereof function, below do an explanation in more detail to the action and the principle of the utility model again:

See also Figure 14, draw the situation of glue for glue; This check (non-return) valve 62 because of piston 60 by toward post-tensioning, represent with dotted arrow, and the space of liquid collecting room 321 increased, produce a type vacuum, check (non-return) valve 62 is sucked and taper hole runner 702 is opened, then glue is sucked in the liquid collecting room 321, representes with solid arrow; At the same time, pearl ball 33 is pushed away resistance valve port 371 by spring 34, makes plastic emitting runner 37 sealings of plastic emitting flange 30.

See also Figure 15, be the situation of glue plastic emitting; Because of piston 60 is pushed away this forward, represent that with dotted arrow then this check (non-return) valve 62 is pushed by the glue in the liquid collecting room 321, make check (non-return) valve 62 push away resistance sealing taper hole runner 702, stop that glue flows into from pipe joint 64; At the same time, pearl ball 33 is squeezed to be opened, and the plastic emitting runner 37 of plastic emitting flange 30 is opened, and glue is extruded outside a plastic pin 100; So reciprocating action can constantly be drawn glue from glue tube 103, and extruded to carry out a glue operation by a plastic pin 100.

Comprehensively above-mentioned, the utility model can use in response to various workplaces, like Figure 16, with the power source that manually drives as piston 60, and uses with hand.Figure 17 is the power source that piston 60 drives with air pressure or oil hydraulic cylinder 108, and uses with hand.Figure 18 is fixed on mechanism or fixed support mechanically 109 is configured in piston reverse-resistance type glue dispensing valve 99 on other plant equipment with one, and is the power source that piston 60 drives with air pressure or oil hydraulic cylinder 108.

Though the utility model is to explain with several most preferred embodiments, is skillful in this art and can does various multi-form changes not breaking away under the utility model spirit and the category.The above embodiment that lifts is only in order to explanation the utility model, and is non-in order to limit the scope of the utility model.Such as do not disobey various modifications or the variation that the utility model spirit is engaged in, all belong to the utility model claim.

Claims

1. a piston reverse-resistance type glue dispensing valve is characterized in that, comprising:

One hollow liquid collecting cylinder body, each sealing of its two ends is provided with one and draws a glue flange and a plastic emitting flange, and wherein, this draws the glue flange and runs through and be provided with a mesopore, and runs through in the middle of this plastic emitting flange and be provided with a plastic emitting runner;

One piston; The one of which end is extended through hollow liquid collecting cylinder interior from this mesopore, in it, produce to move back and forth, and this piston other end place is equipped with a pipe joint; This pipe joint with at least one be located at internal piston draw the solation road to be communicated in hollow liquid collecting cylinder interior; And this pipe joint is provided with a pipe fitting and is attached to one and supplies to store in the glue tube of glue, and wherein, this draws the solation road is a taper hole runner with respect to an end of this hollow liquid collecting cylinder interior;

One be located in the plastic emitting runner, the movable plastic emitting adjusting device that adjusts the gel quantity in solation road;

One connect mechanism, it is located at the end that this piston exposes to hollow liquid collecting cylinder body, with link one can drive reciprocating motion of the pistons power source.

2. piston reverse-resistance type glue dispensing valve as claimed in claim 1; It is characterized in that this hollow liquid collecting cylinder body is provided with a liner, this liner is arranged at hollow liquid collecting cylinder interior with the mode of insertion or coating; And this piston and liner contact friction place are provided with the above leak-stopping closed loop in a place.

3. piston reverse-resistance type glue dispensing valve as claimed in claim 1; It is characterized in that; This check (non-return) valve flows into end by one and an outflow end is formed; And the area of section of this inflow end is less than or equal to the area of section of this outflow end, moreover the end that this inflows is held is that one hemispherical, taper or check (non-return) valve push up a ball.

4. piston reverse-resistance type glue dispensing valve as claimed in claim 3 is characterized in that, the sidewall on every side that this check (non-return) valve flows into end is provided with at least one flow path groove, and this flow path groove is made croze shape, arc groove shape, sharp groove shape and helicla flute shape.

5. piston reverse-resistance type glue dispensing valve as claimed in claim 3; It is characterized in that; The sidewall that this taper hole runner contacts with the check (non-return) valve outflow end is provided with at least one runner, and this runner is made croze shape, arc groove shape, sharp groove shape and helicla flute shape, or periphery is axially opened more than one hole.

6. piston reverse-resistance type glue dispensing valve as claimed in claim 1 is characterized in that this hollow liquid collecting cylinder body and piston space are provided with the resetting spring in order to the strength of strengthening this piston elastic reset.

7. piston reverse-resistance type glue dispensing valve as claimed in claim 1; It is characterized in that; The periphery of this piston is concaved with at least one keyway that it axially is provided with that is parallel to; And this draws flange to should the keyway place, fixingly screws in or inserts a column hold-down screw or a cylindrical pin, makes piston produce the effect of sliding and position limitation.

8. piston reverse-resistance type glue dispensing valve as claimed in claim 1 is characterized in that, is provided with the flexible through hole pin pillow of a tool between this plastic pin and plastic emitting flange, and with a pressing screw plastic pin and through hole pin pillow is locked in the opening part of plastic emitting runner.

9. piston reverse-resistance type glue dispensing valve as claimed in claim 1 is characterized in that, an end of the nearly hollow liquid collecting of this plastic emitting runner cylinder body be provided with one be gradually-reducing shape valve port; And this plastic emitting adjusting device include two be located at the nearly valve port of plastic emitting runner place the pearl ball; Be provided with a spring between this two pearls ball, and a plastic emitting adjusting knob, this plastic emitting adjusting knob has one and stretches through into the wedge pin in this plastic emitting runner; Be adjacent to the pearl ball of a plastic pin with pushing tow; The preparatory power of the compression of control spring, and change the adaptation between pearl ball and valve port by this, to regulate the flow quantity that of glue.

10. like claim 1 a described piston reverse-resistance type glue dispensing valve; It is characterized in that; Being screwed together in the piston place, and this spiro tooth part interlude is a no threaded section to this pipe joint with a spiro tooth part, and connects at this no threaded section periphery and to be provided with at least one hole of drawing the solation road that is communicated in.