CN211160476U

CN211160476U - Double-servo gear metering dispensing valve

Info

Publication number: CN211160476U
Application number: CN201922048602.5U
Authority: CN
Inventors: 戴斌
Original assignee: Suzhou Detech Automation Technology Co ltd
Current assignee: Suzhou Detech Automation Technology Co ltd
Priority date: 2019-11-25
Filing date: 2019-11-25
Publication date: 2020-08-04
Anticipated expiration: 2029-11-25

Abstract

The utility model discloses a double-servo gear metering dispensing valve, wherein the blanking pipes are symmetrically arranged at two sides of a dispensing valve body, the dispensing valve body comprises a shell, a first material bin, a second material bin, a mixing bin, a blanking nozzle and a pair of material pushing units, the first material bin and the second material bin are arranged in the shell, one ends of the first material bin and the second material bin, which are far away from each other, are respectively communicated with the pair of blanking pipes, one ends of the first material bin and the second material bin, which are close to each other, are respectively communicated with the mixing bin, the mixing bin is communicated with the blanking nozzle, the material pushing units comprise a servo motor and a gear flowmeter, the gear flowmeter is arranged at the output end of the servo motor, a pair of gears on the gear flowmeter pass through the middle part of the first material bin or the second material bin side by side, the two sets of servo material pushing units are combined, the adjustability of the gluing proportion and the glue quantity is realized, and the glue discharging function is continuous.

Description

Double-servo gear metering dispensing valve

Technical Field

The utility model relates to a dispensing valve technical field especially relates to a two servo gear measurement dispensing valves.

Background

The dispensing equipment is an automatic equipment for controlling fluid and dripping or coating the fluid on the surface of a product or in the product according to a certain rule, and a dispensing valve is a core component in the dispensing equipment. The existing dispensing valve is generally divided into a single-liquid dispensing valve and a double-liquid dispensing valve according to output glue, the glue flowing out of the single-liquid dispensing valve can be naturally solidified after a period of time or is solidified at an accelerated speed under heating, the double-liquid dispensing valve is special equipment for dispensing double-component glue (generally called AB glue), and the two liquid phases of the double-component glue can be mixed and solidified, so that the situation that a glue channel in the dispensing valve is narrowed or even blocked due to the fact that the glue is solidified in the dispensing valve is avoided.

In the process of pushing materials, the blanking precision of the existing double-liquid dispensing valve cannot be accurately controlled, so that the dispensing precision is not high, and the dispensing quality is influenced; in addition, AB glue can be filtered before the feeding pump, but AB glue can carry the impurity of long-time deposit in the conveying pipe to through long-process pay-off, can lead to the unloading mouth to block up after its entry point glues the valve, influences the normal work of point gluey valve and glues the quality.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a two servo gear measurement dispensing valves, two sets of servo material pushing unit combinations adopt gear formula measurement mode, and the precision is higher, guarantees product rubber coating stability, through controlling two sets of servo motor's functioning speed and stroke, realizes the adjustability of rubber coating proportion, the adjustability of volume of gluing, incessant play glue function.

In order to achieve the above purpose, the utility model adopts the technical scheme that: a double-servo gear metering dispensing valve comprises a dispensing valve body and a pair of discharging pipes, wherein the pair of discharging pipes are symmetrically arranged on two sides of the dispensing valve body, and is communicated with a dispensing valve body, the dispensing valve body comprises a shell, a first bin, a second bin, a mixing bin, a discharging nozzle and a pair of material pushing units, the first bin and the second bin are arranged in the shell, one ends of the first bin and the second bin, which are far away from each other, are respectively communicated with a pair of blanking pipes, and one end of the two close to each other is communicated with a mixing bin which is communicated with a blanking nozzle arranged at the bottom of the shell, the material pushing unit comprises a servo motor and a gear flowmeter, the gear flowmeter is arranged at the output end of the servo motor, a pair of gears on the gear flowmeter penetrate through the middle part of the first bin or the second bin side by side, and the plane where the central axes of the pair of gears are located is perpendicular to the flowing direction of glue in the first bin and the second bin.

As a further optimization, first pressure sensors are respectively arranged on the sides far away from each other in the first storage bin and the second storage bin; and second pressure sensors are respectively arranged on one sides of the first storage bin and the second storage bin close to each other.

As a further optimization, the blanking pipe is provided with a connecting pipe communicated with the blanking pipe, the middle part of the cavity of the connecting pipe is provided with a positioning ring, and the positioning ring is provided with a filtering component.

As a further optimization, the filtering component comprises a limiting ring and a filtering net part, the filtering net part is fixed at the lower end of the inner wall of the limiting ring, and the lower end face of the limiting ring abuts against the upper end face of the positioning ring to position the limiting ring in the cavity.

As a further optimization, the outer diameter of the limiting ring is equal to the diameter of the cavity, and the inner diameter of the limiting ring is equal to the inner diameter of the positioning ring.

As a further optimization, the filter screen part comprises a ring net and a bottom net, and the lower end of the ring net is connected with the circumferential side of the bottom net.

As a further optimization, the filter screen part is made of metal or fiber.

As a further optimization, the lower part of the connecting pipe is provided with a closing structure, and the closing structure can be inserted into or screwed into the blanking pipe.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the two sets of servo material pushing units are combined, a gear type metering mode is adopted, the precision is higher, the gluing stability of a product is ensured, and the adjustability of gluing proportion and glue quantity and the function of continuous glue discharging are realized by controlling the running speed and the stroke of the two sets of servo motors;

2. the connecting pipe and the filtering component are added, the purity of the glue can be further improved, impurities brought in a long flow are filtered, the glue dispensing quality is improved, and the blanking nozzle is prevented from being blocked.

Drawings

Fig. 1 is a structural diagram of the present invention.

Fig. 2 is an internal structure diagram of the dispensing valve body of the present invention.

Fig. 3 is a structural diagram of the connecting pipe of the present invention.

Fig. 4 is a structural view of the filter element of the present invention.

In the figure, 1, a glue dispensing valve body; 2. a discharging pipe; 3. a connecting pipe; 4. a filter member; 10. a housing; 111. a first pressure sensor; 112. a second pressure sensor; 12. a material pushing unit; 13. a servo motor; 14. a gear flow meter; 141. a gear; 15. a first storage bin; 16. a second storage bin; 17. a mixing bin; 18. a discharging nozzle; 31. a cavity; 32. a positioning ring; 33. a closing structure; 41. a limiting ring; 42. a screen section; 421. a ring network; 422. a bottom net.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 to 4, a dual-servo gear metering dispensing valve comprises a dispensing valve body 1 and a pair of discharging pipes 2, wherein the pair of discharging pipes 2 are symmetrically arranged on two sides of the dispensing valve body 1 and are communicated with the dispensing valve body 1, the dispensing valve body 1 comprises a housing 10, a first bin 15, a second bin 16, a mixing bin 17, a discharging nozzle 18 and a pair of material pushing units 12, the first bin 15 and the second bin 16 are arranged in the housing 10, one ends of the first bin 15 and the second bin 16, which are far away from each other, are respectively communicated with the pair of discharging pipes 2, one ends of the first bin and the second bin, which are close to each other, are communicated with the mixing bin 17, the mixing bin 17 is communicated with the discharging nozzle 18 arranged at the bottom of the housing 10, the material pushing units 12 comprise a servo motor 13 and a gear flowmeter 14, the gear flowmeter 14 is arranged at the output end of the servo motor 13, a pair of gears 141 on the gear flowmeter 14, the plane of the central axis of the pair of gears 141 is perpendicular to the direction of flow of the glue in the first magazine 15 and the second magazine 16.

A. Glue B is conveyed to inlets at two ends of the glue dispensing valve through a feeding system respectively and enters the first storage bin and the second storage bin respectively, the servo motor drives a gear pump in the gear flowmeter to rotate, the glue enters the mixing bin after being metered by the gears, a static mixing mode is adopted, and A, B glue is mixed completely and then is discharged to a product from the mixing bin through a discharge nozzle outlet. The utility model is formed by combining two sets of servo pushing units, adopts a gear type metering mode, has higher precision, and ensures the stability of product gluing; by controlling the running speed and the stroke of the two groups of servo motors, the adjustability of the gluing proportion and the glue amount can be realized, the glue discharging function is continuous, the glue discharging device is suitable for wide glue and customer application, and the selection diversity of the glue of customers is increased.

Keep away from each other in first feed bin 15 and the second feed bin 16 one side and be equipped with first pressure sensors 111 respectively, be close to each other one side in first feed bin 15 and the second feed bin 16 and be equipped with second pressure sensors 112 respectively, the valve import of dispensing sets up pressure monitoring function, and the warning stops when the feed is insufficient, and the valve export of dispensing sets up pressure monitoring function, and the warning stops when the export blocks up.

Be equipped with the connecting pipe 3 rather than being linked together on unloading pipe 2, the cavity 31 middle part of connecting pipe 3 is equipped with holding ring 32, is equipped with filter part 4 on the holding ring 32, can carry out the second time to glue through filter part and filter, avoids the impurity that long flow brought into in the pipeline, further improves the purity of glue, can improve the quality of gluing, can prevent simultaneously that the unloading mouth from blockking up.

The filter part 4 comprises a limiting ring 41 and a filter screen part 42, the filter screen part 42 is fixed on the lower end of the inner wall of the limiting ring 41, and the lower end surface of the limiting ring 41 abuts against the upper end surface of the positioning ring 32 to position the positioning ring inside the cavity 31.

The outer diameter of the stop collar 41 is equal to the diameter of the cavity 31 and the inner diameter of the stop collar 41 is equal to the inner diameter of the positioning ring 32.

Filter screen portion 42 includes looped netowrk 421 and end net 422, and the lower extreme of looped netowrk 421 links to each other with end net 422's circumference side, and filter screen portion 42 is metal material or fibrous material, and filter screen portion is through setting up certain degree of depth, can guarantee not influence its ejection of compact speed when filtering glue.

The lower part of the connecting pipe 3 is provided with a closing-in structure 33, and the closing-in structure 33 can be inserted into or screwed into the feeding pipe 2.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The double-servo gear metering dispensing valve is characterized by comprising a dispensing valve body (1) and a discharging pipe (2), wherein the discharging pipe (2) is symmetrically arranged on two sides of the dispensing valve body (1) and is communicated with the dispensing valve body (1), the dispensing valve body (1) comprises a shell (10), a first bin (15), a second bin (16), a mixing bin (17), a discharging nozzle (18) and a pair of pushing units (12), the first bin (15) and the second bin (16) are arranged in the shell (10), one ends, far away from each other, of the first bin and the second bin are respectively communicated with the pair of discharging pipes (2), one ends, close to each other, of the first bin and the second bin are communicated with the mixing bin (17), the mixing bin (17) is communicated with the discharging nozzle (18) arranged at the bottom of the shell (10), each pushing unit (12) comprises a servo motor (13) and a gear flowmeter (14), the gear flowmeter (14) is arranged at the output end of the servo motor (13), a pair of gears (141) on the gear flowmeter (14) penetrates through the middle of the first bin (15) or the second bin (16) side by side, and the plane where the central axis of the pair of gears (141) is located is perpendicular to the flowing direction of glue in the first bin (15) and the second bin (16).

2. Double servo gear metering dispensing valve according to claim 1, characterized in that a first pressure sensor (111) is provided in each of the sides of the first magazine (15) and the second magazine (16) remote from each other; and second pressure sensors (112) are respectively arranged on the sides, close to each other, in the first storage bin (15) and the second storage bin (16).

3. The double-servo gear metering dispensing valve according to claim 1, wherein the feeding pipe (2) is provided with a connecting pipe (3) communicated with the feeding pipe, the middle part of a cavity (31) of the connecting pipe (3) is provided with a positioning ring (32), and the positioning ring (32) is provided with a filtering part (4).

4. The dual-servo gear metering dispensing valve according to claim 3, wherein the filtering part (4) comprises a limiting ring (41) and a filtering net part (42), the filtering net part (42) is fixed on the lower end of the inner wall of the limiting ring (41), and the lower end face of the limiting ring (41) abuts against the upper end face of the positioning ring (32) to position the limiting ring inside the cavity (31).

5. Double servo gear metering dispensing valve according to claim 4, characterized in that the outer diameter of the stop collar (41) is equal to the diameter of the cavity (31) and the inner diameter of the stop collar (41) is equal to the inner diameter of the positioning ring (32).

6. Double servo gear metering dispensing valve according to claim 4, wherein the screen part (42) comprises a ring net (421) and a bottom net (422), the lower end of the ring net (421) being connected to the circumferential side of the bottom net (422).

7. The dual servo gear metering dispensing valve of claim 4 wherein the screen portion (42) is metal or fiber.

8. The dual-servo gear metering dispensing valve according to claim 3, wherein the lower part of the connecting pipe (3) is provided with a closing-in structure (33), and the closing-in structure (33) can be inserted or screwed into the feeding pipe (2).