Novel gluing pump
Technical field
The utility model gluing pump relates in particular to better, the more accurate novel gluing pump of gluing of a kind of sealing effectiveness.
Background technology
The gluing pump is a kind of device that is used for spreading glue.Existing gluing pump mainly includes three-way change-over valve, and three-way change-over valve connects outside sebific duct and inner glue storage cavity body, inhales actions such as glue, plastic emitting and gluing through rotating three-way change-over valve control; When the gluing pump was out-of-work, outside fluid sealant can be inhaled into the glue storage cavity body of gluing pump through sebific duct, in the time of the gluing pump work; Three-way change-over valve be transformed into connect the glue storage cavity body and with the position that is coated with the plastic pin mouth, at this moment after being squeezed on the glue storage cavity body, the fluid sealant of cavity is coated onto the surface of product through the pin mouth; After smearing end; Three-way change-over valve is transformed into the position with sebific duct, glue storage cavity body again, inhales the glue action once more, and identical step is carried out in circulation successively; But the do action that existing gluing pump needs three-way change-over valve not stop connects sebific duct, is coated with plastic pin mouth, glue storage cavity body etc.; Complex structure breaks down easily, has increased the frequency of maintenance and the difficulty of maintenance; Action component is more, has influenced the gluing precision; Sealing structure property is very low, and it is serious to cause leaking the glue phenomenon, has wasted a large amount of resources.
The utility model content
It is a kind of simple in structure that the goal of the invention of the utility model is to provide, better tightness, the novel gluing pump that the gluing precision is higher.
In order to realize the foregoing invention purpose, the technical scheme of the utility model is:
A kind of gluing pump comprises the pump housing, syringe needle mount pad, guiding die cavity; Said syringe needle mount pad is through being threaded in the bottom of the pump housing, and the slit of between is provided with sealing gasket; Said guiding die cavity is connected the top of the pump housing; Contain piston rod in the inside of said guiding die cavity guide rod is installed; The bottom that said piston rod is installed guide rod is connected with piston rod; The lower end of said piston rod is passed the pump housing, sealing gasket simultaneously; Slit between said piston rod and the sealing gasket also is with cone seal; The slit of installing between guide rod and the guiding die cavity at said piston rod also is provided with fairlead, spring; Said fairlead is positioned at the below of said spring; The side of the said pump housing offers the link hole.
Optional, the slit between the said piston rod and the pump housing also is with sealing ring; Slit between the said pump housing and said guiding die cavity also is provided with the sealing ring pressing plate.
Optional, fastening nut also has been threaded in the bottom of said syringe needle mount pad.
Optional, also offer locating hole in the side of said guiding die cavity; On said piston installation guide rod, the locating piece that stretches out from said locating hole is installed also.
Optional, the top that guide rod is installed at said piston rod also is equipped with bearing.
The utility model is mainly installed guide rod through piston and is done front and back piston motion, drives seesawing of piston rod simultaneously, and piston rod drives the cone seal that is with between piston rod and the sealing gasket simultaneously; Through the plastic emitting that cooperate control gluing pump, the suction glue action of cone seal with sealing gasket; The utility model is simple in structure, safeguards that action component is less easily; The gluing precision is higher, and sealing is higher.
The utility model also slit between the piston rod and the pump housing is with sealing ring, and the setting of the slit between the guiding die cavity and the pump housing has improved the sealing of the utility model in order to the sealing ring pressing plate of fixed seal ring.
The utility model fastening nut that also has been threaded in the bottom of syringe needle mount pad, the slit between fastening nut and syringe needle mount pad can play and store unnecessary colloid, have saved resource.
The utility model is also offered locating hole in the side of guiding die cavity; And installing and locating piece on the guide rod is installed at said piston; Said locating piece stretches out from locating hole, through piston guide rod is installed and is driven locating piece, and locating hole is in order to the movement locus of control locating piece; It is more stable that such structure helps the utility model gluing, more accurate.
The utility model is also installed the top installation bearing of guide rod at piston rod, in order to the movement locus of control piston bar installation guide rod, it is more stable, more accurate to make it action.
Therefore, the technical scheme of application the utility model embodiment, better tightness, the gluing precision is higher.
Description of drawings
Accompanying drawing described herein is used to provide the further understanding to the utility model, constitutes the application's a part, does not constitute the improper qualification to the utility model, in the accompanying drawings:
A kind of overall structure sectional side elevation that Fig. 1 provides for the utility model.
The specific embodiment
To combine accompanying drawing and specific embodiment to specify the utility model below, be used for explaining the utility model in the illustrative examples and the explanation of this utility model, but not as the qualification to the utility model.
Embodiment 1:
As shown in Figure 1, present embodiment discloses a kind of novel gluing pump, and it comprises the pump housing 100, syringe needle mount pad 400, guiding die cavity 200; Syringe needle mount pad 400 is through being threaded in the bottom of the pump housing 100, and the slit of between is provided with sealing gasket 110; Guiding die cavity 200 is connected the top of the pump housing 100; Contain piston rod in the inside of guiding die cavity 200 guide rod 210 is installed; The bottom that piston rod is installed guide rod 210 is connected with piston rod 250; The lower end of piston rod 250 is passed the pump housing 100, sealing gasket 110 simultaneously; Slit between piston rod 250 and the sealing gasket 110 also is with cone seal 251, and fixing with nut 252; The slit of installing between guide rod 210 and the guiding die cavity 200 at piston rod also is provided with fairlead 220, spring 230; Wherein fairlead 220 is positioned at the below of said spring 230; The side of the pump housing 100 offers link hole 120.
The course of work of present embodiment is: the power set pulling piston rod through present embodiment is outer is installed guide rod 210; Make piston rod that guide rod 210 is installed and in guiding die cavity 200, do piston motion up and down; Piston rod is installed guide rod 210 and is driven piston rod 250, and piston rod 250 drives the cone seal 251 that is installed in piston rod 250 bottoms simultaneously.When piston rod is installed guide rod 210 to motion the time; The cone seal 251 of piston rod 250 bottoms moves upward simultaneously; Clog the slit between sealing gasket 110 and the piston rod 250, make present embodiment stop plastic emitting, the die cavity 200 that leads this moment is inner owing to make piston motion formation negative pressure; Present embodiment will suck glue from the link hole 120 that is opened in the pump housing 100 sides, and is stored in the cavity of the pump housing 100 inside synchronously; When piston rod installation guide rod 210 moves downward; The cone seal 251 of piston rod 250 lower ends moves downward simultaneously; Thereby open the slit between sealing gasket 110 and the piston rod 250; The glue that is stored in the pump housing 100 internal cavities will be forced into the cavity in the syringe needle mount pad 400, carries out the gluing action through the outlet of syringe needle mount pad 400 at last.
Can not squint the wearing and tearing that prevent to squint and cause when fairlead 220 is used to make piston rod installation guide rod 210 to move up and down in the present embodiment.And spring 230 is used to provide piston rod that the power that guide rod 210 upwards resets is installed, and makes present embodiment inhale glue and more saves power.
Present embodiment has designed a brand-new structure, and action component is less, and is simple in structure, safeguards simple and easyly, and fault rate is low, good sealing effect, and gluing is more accurate simultaneously.
Embodiment 2:
As shown in Figure 1, present embodiment is with embodiment 1 different place: the slit of present embodiment between the piston rod 250 and the pump housing 100 also is with sealing ring 310; And the slit between the pump housing 100 and guiding die cavity 200 also is provided with sealing ring pressing plate 300.
Present embodiment utilizes sealing ring 310 to increase sealing, and sealing ring pressing plate 300 is mainly used in fixed seal ring 310.
Embodiment 3:
As shown in Figure 1, the present embodiment place different with other embodiment is: fastening nut 500 also has been threaded in the bottom of syringe needle mount pad 400.
Present embodiment utilizes fastening nut 500 to store unnecessary glue, can make gluing more accurate simultaneously, has saved lot of manpower and material resources.
Embodiment 4:
As shown in Figure 1, present embodiment also offers two locating holes 241 of symmetry in the side of guiding die cavity 200; On said piston installation guide rod 210, also be horizontally installed with locating piece 240, stretch out from positioning hole corresponding 241 respectively at the two ends of locating piece 240, and the top that guide rod 210 is installed at piston rod also is equipped with bearing 600.
In the present embodiment, locating hole 241 is in order to the movement locus of control locating piece 240, and is more accurate when realizing making piston rod installation guide rod 210 to move up and down, and the purpose of bearing 600 also is that the movement locus of guide rod 210 is installed for the positioning piston bar.
It is more accurate that present embodiment is inhaled glue, plastic emitting and gluing.
More than technical scheme that the utility model embodiment is provided carried out detailed introduction; Used concrete example among this paper principle and the embodiment of the utility model embodiment are set forth, the explanation of above embodiment only is applicable to the principle that helps to understand the utility model embodiment; Simultaneously, for one of ordinary skill in the art, according to the utility model embodiment, the part that on the specific embodiment and range of application, all can change, in sum, this description should not be construed as the restriction to the utility model.