CN212418497U

CN212418497U - Precise dispensing mechanism for bi-component glue

Info

Publication number: CN212418497U
Application number: CN202020034842.XU
Authority: CN
Inventors: 卢国明; 张涛; 翟志豪; 卢国艺; 江岱平
Original assignee: Shenzhen Tengsheng Precision Equipment Co ltd
Current assignee: Shenzhen Tengsheng Precision Equipment Co ltd
Priority date: 2020-01-08
Filing date: 2020-01-08
Publication date: 2021-01-29
Anticipated expiration: 2030-01-08

Abstract

The embodiment of the application belongs to the technical field of glue dispensing equipment, and relates to a double-component glue precise glue dispensing mechanism. The technical scheme provided by the application comprises a mounting plate, a valve A, a valve B, a mixing cavity, a mixing pipe, a refrigerating cavity and a needle head; a valve and B valve are located on the mounting panel, the hybrid chamber is located A valve and B valve go out gluey one end, be used for right A valve and B valve exhaust glue mix, the refrigeration chamber is located the hybrid chamber dorsad the one side of A valve and B valve, the hybrid tube is located the refrigeration intracavity and with the hybrid chamber is connected, is used for right A valve and B valve exhaust glue mix, the refrigeration chamber will the hybrid tube fastening in on the hybrid chamber, the syringe needle is located the refrigeration chamber dorsad the one side of hybrid chamber. The refrigerating cavity contains the whole mixing pipe, the refrigerating effect is good, and the curing time of the mixed glue can be effectively prolonged; the valve A and the valve B can be independently metered, and high-precision mixing ratio can be realized.

Description

Precise dispensing mechanism for bi-component glue

Technical Field

The application relates to the technical field of glue dispensing equipment, and more specifically relates to a precise glue dispensing mechanism for double-component glue.

Background

In the fields requiring dispensing in the electronic industry, the mobile communication industry and the like, technologies such as volumetric metering type dispensing, AB two-liquid mixed dispensing, precise dispensing, semiconductor refrigeration and the like mainly exist. The existing double-liquid glue dispensing mode mainly comprises three modes, one mode is that a piston is pushed through compressed air so as to extrude glue from a glue cylinder, the other mode is that the piston is pushed through a motor and a lead screw so as to extrude the glue from the glue cylinder, and the other mode is that the glue is extruded through a manual glue gun. The above three methods have the following disadvantages: after being mixed, part of the double-component glue is fast to cure, and the glue needs to be cleaned frequently in the production process; the glue cylinder expands after being pressed, so that the glue yield is difficult to control, and the mixing ratio of the glue is not accurate; the volume is large, and the installation is easy to be limited; the first and third modes are not suitable for high-viscosity glue; the mixing ratio is affected due to different viscosities of the two-component glue.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a mechanism is glued to accurate point of bi-component glue, the glue of two kinds of components is measured alone through A valve and B valve respectively, has solved the mixing ratio error that the glue of two kinds of components arouses because of the viscosity is different, and the refrigeration chamber contains whole hybrid tube, and refrigeration effect is good, effectively prolongs the curing time after the glue mixes.

In order to solve the above-mentioned problem, the embodiment of the present invention provides the following technical solutions:

a precise dispensing mechanism for bi-component glue comprises a mounting plate, a valve A, a valve B, a mixing cavity, a mixing pipe, a refrigerating cavity and a needle head;

the A valve and the B valve are arranged on the mounting plate, the mixing chamber is arranged at one end of the glue discharged from the A valve and the B valve, the refrigerating chamber is arranged on the back of the mixing chamber, one surface of the A valve and the B valve is arranged on the back of the mixing chamber, the mixing pipe is arranged in the refrigerating chamber and connected with the mixing chamber, the glue discharged from the A valve and the B valve is mixed, the refrigerating chamber is fastened on the mixing chamber, and the needle head is arranged on the back of the refrigerating chamber and one surface of the mixing chamber.

Further, be equipped with on the mounting panel and be used for right the refrigerated refrigeration subassembly in refrigeration chamber, the refrigeration subassembly includes connecting plate, refrigeration piece, heat conduction piece, fin, fan and thermal-insulated lid, the connecting plate is located on the mounting panel, the fin is located the connecting plate is close to the one side in refrigeration chamber, the fan is located the connecting plate is kept away from the one side in refrigeration chamber, the cold side of refrigeration piece with the heat conduction piece contact, the hot side of refrigeration piece with the fin contact, the heat conduction piece with the refrigeration chamber contact, thermal-insulated lid is located on refrigeration piece and the heat conduction piece.

Furthermore, a plurality of guide pillars and springs are arranged in the connecting plate, the springs are sleeved on the guide pillars, the guide pillars are matched with the heat conducting blocks, and the heat conducting blocks are attached to the refrigeration cavity under the compression of the springs.

Furthermore, heat-conducting silicone grease is arranged between the refrigerating sheet and the heat-conducting block and between the refrigerating sheet and the radiating sheet.

Further, the valve A and the valve B both comprise a pump, a needle cylinder and a driving mechanism, the pump comprises a piston rod, an upper cover, a cavity, a glue inlet nozzle, a valve body and a valve core, the glue inlet nozzle is arranged on the valve body and connected with the needle cylinder, the valve core is rotatably connected in the valve body to control the opening and closing of the valve body, the lower end of the cavity is connected with the valve body, the cavity is used for storing glue, the upper cover is sleeved on the cavity, the piston rod is slidably connected in the cavity and connected with the output end of the driving mechanism, when the valve body is opened, the driving mechanism drives the piston rod to move downwards to discharge the glue in the cavity, when the valve body is closed, the cavity is communicated with the glue inlet nozzle, and the driving mechanism drives the piston rod to move upwards to pump the glue from the needle cylinder into the cavity.

Furthermore, a rotary cylinder for driving the valve core to rotate is arranged on one side, back to the pump, of the mounting plate.

Further, the driving mechanism comprises a motor, a ball screw and a screw nut, the screw nut converts the rotary motion of the motor into the linear motion of the ball screw, a piston rod positioning seat is arranged at the lower end of the ball screw, and a wedge-shaped structure pressing block used for locking the piston rod on the piston rod positioning seat is arranged on the piston rod positioning seat.

Furthermore, the mounting plate is provided with a guide rail along the vertical direction, and the piston rod positioning seat is provided with two sliding blocks which are connected to the guide rail in a sliding manner.

Further, the valve body lower extreme is equipped with the nut and connects, connect through the nut with the valve body is connected, the hybrid chamber includes upper mixing chamber and lower hybrid chamber, connect through interference fit install in the upper mixing chamber, lower hybrid chamber with the refrigeration chamber passes through the screw connection, refrigeration chamber lower extreme is equipped with the syringe needle nut, the syringe needle nut will the syringe needle with the hybrid tube lower extreme compresses tightly sealedly.

Further, the valve A and the valve B are plunger type metering valves and are symmetrically arranged on the mounting plate.

Compared with the prior art, the embodiment of the utility model provides a mainly have following beneficial effect:

a kind of double-component glue precise dispensing mechanism, the double-component glue is loaded into the glue cylinder of valve A and valve B separately, two plunger type metering valves discharge glue at the same time, when the valve block is opened, the said actuating mechanism drives the piston rod to move downward and spit out the glue in the cavity, when the valve block is closed, the said cavity communicates with glue inlet, the said actuating mechanism drives the piston rod to move upward, draw the glue into the cavity from the said cylinder, realize the operation of continuous dispensing; the glue enters the mixing tube through the mixing cavity to be mixed and then is discharged from the needle head, the whole mixing tube is contained by the refrigerating cavity, the refrigerating effect is good, and the curing time of the mixed glue can be effectively prolonged; the glue of the two components is separately metered through the valve A and the valve B, so that high-precision mixing ratio can be realized, and mixing ratio errors caused by different viscosities of the glue of the two components are solved; because the two motors work respectively, when the requirement on the mixing ratio is high, errors caused by manufacturing and assembling of different valves can be compensated by changing the rotating speed of the motors; the integrated design is realized, and the set of double-component glue precise dispensing mechanism comprises two sets of plunger type metering valves, a mixing mechanism and a cooling mechanism, has compact structure and small appearance, and is hardly limited by the installation space.

Drawings

In order to illustrate the solution of the present invention more clearly, the drawings needed for describing the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic view of the overall structure of a precise dispensing mechanism for two-component glue according to an embodiment of the present invention;

fig. 2 is a front view of a precise dispensing mechanism for two-component glue in an embodiment of the present invention;

FIG. 3 is an enlarged view taken at I in FIG. 2;

fig. 4 is a schematic structural diagram of a refrigeration assembly in an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a driving mechanism in an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a valve a and a valve B according to an embodiment of the present invention.

Description of reference numerals:

1. a valve A; 2. a valve B; 3. mounting a plate; 4. a nut; 5. a joint; 6. an upper mixing chamber; 7. a lower mixing chamber; 8. a refrigeration cavity; 9. a screw; 10. a needle nut; 11. a needle head; 12. a mixing tube; 13. a fan; 14. a connecting plate; 15. a heat sink; 16. a refrigeration plate; 17. a heat insulation cover; 18. a heat conducting block; 19. a guide post; 20. a spring; 21. an input/output interface; 22. a motor; 23. a feed screw nut; 24. a ball screw; 25. a piston rod positioning seat; 26. a wedge-structured pressing block; 27. pumping; 28. a rotating cylinder; 30. a piston rod; 31. an upper cover; 32. a cavity; 33. a glue inlet nozzle; 34. a valve body; 35. a valve core.

Detailed Description

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The terms "including" and "having," and any variations thereof, in the description and claims of the present invention and the description of the above figures are intended to cover non-exclusive inclusions. The terms "first," "second," and the like in the description and in the claims, or in the drawings, are used for distinguishing between different objects and not necessarily for describing a particular sequential or chronological order.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

In order to make the technical solution of the present invention better understood by those skilled in the art, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the related drawings.

Examples

A precise glue dispensing mechanism for double-component glue is shown in figures 1 to 6 and comprises a mounting plate 3, a valve A1, a valve B2, a mixing cavity, a mixing pipe 12, a refrigerating cavity 8 and a needle 11; a valve 1 and B valve 2 locate on the mounting panel 3, the hybrid chamber is located A valve 1 and B valve 2 go out gluey one end, refrigeration chamber 8 is located the hybrid chamber dorsad A valve 1 and B valve 2's one side, hybrid tube 12 is located in refrigeration chamber 8 and with the hybrid chamber is connected, and is used for right A valve 1 and B valve 2 exhaust glue mixes, refrigeration chamber 8 will hybrid tube 12 compresses tightly and is fixed in on the hybrid chamber, syringe needle 11 is located refrigeration chamber 8 dorsad the one side of hybrid chamber.

In the embodiment of the utility model provides an in, A valve 1 and B valve 2 are the plunger type metering valve, and the symmetry set up in on the mounting panel 3, two kinds of glues are measured alone through the plunger type valve respectively, then carry mixing tube 12 to mix, can realize the mixing ratio of high accuracy.

The double-component glue is respectively arranged in the valve A1 and the valve B2, the valve A1 and the valve B2 simultaneously discharge the glue, the glue enters the mixing pipe 12 through the mixing cavity to be mixed, then the glue is discharged from the needle 11, the whole mixing pipe 12 is contained by the refrigerating cavity 8, the refrigerating effect is good, the curing time after the glue is mixed can be effectively prolonged, and the double-component glue is particularly suitable for the double-component glue with short curing time. The glue of two components is separately metered through the valve A1 and the valve B2 respectively and then is conveyed to the mixing pipe 12 to be mixed, so that high-precision mixing ratio can be realized, mixing ratio errors caused by different viscosities of the glue of the two components are solved, an integrated design is realized, and one set of double-component glue precise dispensing mechanism comprises two sets of plunger type metering valves, a mixing mechanism and a cooling mechanism, has a compact structure and a small and exquisite appearance, and is hardly limited by installation space.

As shown in fig. 4, it is right to be equipped with on the mounting panel 3 the refrigerated refrigeration subassembly in refrigeration chamber 8, the refrigeration subassembly includes connecting plate 14, refrigeration piece 16, heat conduction piece 18, fin 15, fan 13 and thermal-insulated lid 17, connecting plate 14 locates on the mounting panel 3, fin 15 locates connecting plate 14 is close to the one side in refrigeration chamber 8, fan 13 locates connecting plate 14 keeps away from the one side in refrigeration chamber 8, the cold face of refrigeration piece 16 with the contact of heat conduction piece 18, the hot face of refrigeration piece 16 with fin 15 contacts, heat conduction piece 18 with refrigeration chamber 8 contacts, thermal-insulated lid 17 is located on refrigeration piece 16 and the heat conduction piece 18. The cold face of refrigeration piece 16 contacts with heat conduction piece 18, refrigerates for refrigeration chamber 8 through heat conduction piece 18, and the hot face of refrigeration piece 16 contacts with fin 15, and fan 13 is the heat dissipation of fin 15, can effectively prolong the curing time after the glue mixes, and the short double-component glue of curing time is particularly useful for. Under the normal use condition, the disassembly and the cleaning are avoided, and only the disposable mixing tube 12 and the needle 11 need to be replaced periodically.

In the embodiment of the utility model provides an in, thermal-insulated lid 17 adopts the low plastics of heat conductivity to make, reduces the heat exchange of air and refrigeration part.

A plurality of guide posts 19 and springs 20 are arranged in the connecting plate 14, the guide posts 19, the springs 20, the radiating fins 15 and the connecting plate 14 form a flexible structure, the springs 20 are sleeved on the guide posts 19, the guide posts 19 are matched with the heat conducting blocks 18, and the heat conducting blocks 18 are attached to the refrigeration cavity 8 under the compression of the springs 20. In the assembling process, due to the accumulation of machining errors of a plurality of parts, the heat-conducting block 18 and the refrigeration cavity 8 are difficult to be parallel when being installed, the actual contact area is small, and the heat transfer effect is influenced. The embodiment of the utility model provides an in, set up four springs 20 in 18 four angular positions of heat conduction piece, and the spring 20 is in compression state after having assembled, only needs to guarantee the plane degree, the roughness of two contact surfaces in heat conduction piece 18 and refrigeration chamber, the effective area of contact of two contact surfaces of assurance that just can be fine, and flexible connection structure can reduce the processing requirement, can weaken the influence of machining error to heat conduction.

And heat-conducting silicone grease is arranged between the refrigerating sheet 16 and the heat-conducting block 18 and between the refrigerating sheet 16 and the radiating fin 15, so that the heat-conducting efficiency can be improved.

As shown in fig. 5 and 6, each of the a valve 1 and the B valve 2 includes a pump 27, a syringe and a driving mechanism, the pump 27 includes a piston rod 30, an upper cover 31, a cavity 32, a glue inlet nozzle 33, a valve body 34 and a valve core 35, the glue inlet nozzle 33 is disposed on the valve body 34 and connected to the syringe, the valve core 35 is rotatably connected to the valve body 34 to control the opening and closing of the valve body 34, the lower end of the cavity 32 is connected to the valve body 34, the cavity 32 is used for storing glue, the upper cover 31 is sleeved on the cavity 32, the piston rod 30 is slidably connected to the cavity 32 and connected to an output end of the driving mechanism, when the valve body 34 is opened, the driving mechanism drives the piston rod 30 to move downward to discharge the glue in the cavity 32, when the valve body 34 is closed, the cavity 32 is communicated with the glue inlet nozzle 33, the driving mechanism drives the piston rod 30 to move upward, the glue is pumped into the cavity 32 from the needle cylinder and can realize continuous glue dispensing operation under repeated work, a specially-made micro-pumping structure is adopted, the influence of the temperature and viscosity change of the external glue is avoided, the glue dispensing operation from low viscosity to high viscosity can be realized, the plunger type metering valve is simple in structure, and different mixing ratios can be quickly switched by replacing a valve body 34.

The side of the mounting plate 3, which faces away from the pump 27, is provided with a rotary cylinder 28 for driving the valve element 35 to rotate, the rotary cylinder 28 drives the valve element 35 to make a reciprocating 90-degree rotary motion in the valve body 34, the valve element 35 and the valve body 34 are in clearance seal, the valve element 35 is made of hard alloy, the wear resistance is excellent, and the valve element 35 rotates to a specified angle position to open the valve body 34 and close the valve body 34.

The driving mechanism comprises a motor 22, a ball screw 24 and a screw nut 23, the screw nut 23 converts the rotary motion of the motor 22 into the linear motion of the ball screw 24, a piston rod positioning seat 25 is arranged at the lower end of the ball screw 24, and a wedge-shaped structure pressing block 26 used for locking the piston rod 30 on the piston rod positioning seat 25 is arranged on the piston rod positioning seat 25. The rotary motion of the motor 22 is converted into the linear motion of the ball screw 24 through the screw nut 23, so that the piston rod 30 is driven to reciprocate up and down, the high-precision positioning of the piston rod 30 is realized, and the high-precision dispensing requirement is met. The two plunger type metering valves are respectively controlled by the two motors 22, so that the mixing ratio error caused by different viscosities of the two-component glue is solved, and the different rotating speeds of the motors 22 can be controlled for compensation. The mixing ratio and the glue discharging amount are controlled by setting the rotating speed ratio and the rotating speed of the motor 22 of the valve A1 and the valve B2, so that the debugging is very intuitive, and the operation is simple and reliable.

The mounting plate 3 is provided with an input/output interface 21 for providing an air source for the rotary cylinder 28, providing a pulse signal for the motor 22, and feeding back position signals of the motor 22 and the rotary cylinder 28 to an external controller.

The mounting plate 3 is provided with a guide rail along the vertical direction, the piston rod positioning seat 25 is provided with two sliding blocks connected to the guide rail in a sliding manner, and the piston rod positioning seat 25 realizes high-rigidity positioning and guiding through the double sliding blocks.

The working principle is as follows: two components of glue are respectively arranged in glue cylinders of a valve A and a valve B, two plunger type metering valves simultaneously discharge glue, when a valve body 34 is opened, a driving mechanism drives a piston rod 30 to move downwards to discharge the glue in a cavity 32, when the valve body 34 is closed, the cavity 32 is communicated with a glue inlet nozzle 33, the driving mechanism drives the piston rod 30 to move upwards to pump the glue into the cavity 32 from the glue cylinder, and continuous glue dispensing operation can be realized under the repeated work; the glue enters the mixing tube 12 through the mixing cavity to be mixed and then is discharged from the needle 11, the whole mixing tube 12 is contained by the refrigerating cavity 8, the refrigerating effect is good, and the curing time after the glue is mixed can be effectively prolonged; the glue of two kinds of components is measured separately through A valve 1 and B valve 2, can realize the mixing ratio of high accuracy, and the piston rod 30 sectional area of valve A and valve B can be customized according to specific proportion, specifically by: the dispensing amount is equal to the sectional area of the piston rod 30 multiplied by the piston displacement, so that a mixing ratio of any proportion can be obtained by customizing the piston rod 30 and the corresponding piston cavity, and because the two motors 22 respectively work, when the mixing ratio is required to be high, errors caused by manufacturing and assembling of different valves can be compensated by changing the rotating speed of the motor 22.

Finally, it is to be understood that in the description of the present invention, the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientation or positional relationship indicated in the drawings, which is only for convenience of description and simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be considered as limiting the present invention.

Moreover, relational terms such as "first," "second," and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions or without necessarily requiring or implying any relative importance or implying any particular order among or between such entities or actions. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "secured" are to be construed broadly, as they may be, for example, fixedly connected, detachably connected, or integrally connected; either mechanically or electrically or in communication with each other; either directly or indirectly through intervening media, or may be in a communicating relationship between the two elements unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the specification of the present invention, a large number of specific details are explained. It can be understood, however, that embodiments of the invention may be practiced without these specific details. In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description. Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various illustrative aspects. However, the disclosed method should not be interpreted as reflecting an intention that: rather, the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, embodiment aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. It should be noted that the specific features, structures, materials or characteristics described in the embodiments and examples of the present application may be combined with each other without conflict or contradiction. The present invention is not limited to any single aspect, nor is it limited to any single embodiment, nor is it limited to any combination and/or permutation of these aspects and/or embodiments. Moreover, each aspect and/or embodiment of the present invention may be utilized independently or in combination with one or more other aspects and/or embodiments thereof by one of ordinary skill in the art without contradiction.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. A precise dispensing mechanism of bi-component glue, which is characterized in that,

comprises a mounting plate, a valve A, a valve B, a mixing cavity, a mixing pipe, a refrigerating cavity and a needle head;

2. The precise dispensing mechanism of two-component glue according to claim 1,

be equipped with on the mounting panel and be used for right the refrigerated refrigeration subassembly in refrigeration chamber, the refrigeration subassembly includes connecting plate, refrigeration piece, heat conduction piece, fin, fan and thermal-insulated lid, the connecting plate is located on the mounting panel, the fin is located the connecting plate is close to the one side in refrigeration chamber, the fan is located the connecting plate is kept away from the one side in refrigeration chamber, the cold face of refrigeration piece with the heat conduction piece contact, the hot face of refrigeration piece with the fin contact, the heat conduction piece with the refrigeration chamber contact, thermal-insulated lid is located on refrigeration piece and the heat conduction piece.

3. The precise dispensing mechanism of two-component glue according to claim 2,

the connecting plate is internally provided with a plurality of guide pillars and springs, the springs are sleeved on the guide pillars, the guide pillars are matched with the heat conducting blocks, and the heat conducting blocks are attached to the refrigeration cavity under the compression of the springs.

4. The precise dispensing mechanism of two-component glue according to claim 2,

and heat-conducting silicone grease is arranged between the refrigerating sheet and the heat-conducting block and between the refrigerating sheet and the radiating sheet.

5. The precise dispensing mechanism of two-component glue according to claim 1,

the valve A and the valve B respectively comprise a pump, a needle cylinder and a driving mechanism, the pump comprises a piston rod, an upper cover, a cavity, a glue inlet nozzle, a valve body and a valve core, the glue inlet nozzle is arranged on the valve body and connected with the needle cylinder, the valve core is rotatably connected in the valve body to control the opening and closing of the valve body, the lower end of the cavity is connected with the valve body, the cavity is used for storing glue, the upper cover is sleeved on the cavity, the piston rod is slidably connected in the cavity and connected with the output end of the driving mechanism, when the valve body is opened, the driving mechanism drives the piston rod to move downwards to discharge the glue in the cavity, when the valve body is closed, the cavity is communicated with the glue inlet nozzle, and the driving mechanism drives the piston rod to move upwards to pump the glue from the needle cylinder into the cavity.

6. The precise dispensing mechanism of two-component glue according to claim 5,

and a rotary cylinder for driving the valve core to rotate is arranged on one side of the mounting plate, which faces away from the pump.

7. The precise dispensing mechanism of two-component glue according to claim 5,

the driving mechanism comprises a motor, a ball screw and a screw nut, the screw nut converts the rotary motion of the motor into the linear motion of the ball screw, a piston rod positioning seat is arranged at the lower end of the ball screw, and a wedge-shaped structure pressing block used for locking the piston rod on the piston rod positioning seat is arranged on the piston rod positioning seat.

8. The precise dispensing mechanism of two-component glue according to claim 7,

the mounting panel is equipped with along vertical guide rail, be equipped with two sliding connection on the piston rod positioning seat in slider on the guide rail.

9. The precise dispensing mechanism of two-component glue according to claim 5,

the valve body lower extreme is equipped with the nut and connects, connect through the nut with the valve body is connected, the hybrid chamber includes upper mixing chamber and lower hybrid chamber, connect through interference fit install in the upper mixing chamber, lower hybrid chamber with the refrigeration chamber passes through the screw connection, refrigeration chamber lower extreme is equipped with the syringe needle nut, the syringe needle nut will the syringe needle with the hybrid tube lower extreme compresses tightly sealed.

10. The precise dispensing mechanism of two-component glue according to claim 1,

and the valve A and the valve B are plunger type metering valves and are symmetrically arranged on the mounting plate.