CN218784919U

CN218784919U - Dispensing pump nozzle cleaning device

Info

Publication number: CN218784919U
Application number: CN202222879981.4U
Authority: CN
Inventors: 王世文; 陈海虎; 朱军; 曾昭孔
Original assignee: Suzhou Tongfu Chaowei Semiconductor Co ltd
Current assignee: Suzhou Tongfu Chaowei Semiconductor Co ltd
Priority date: 2022-10-31
Filing date: 2022-10-31
Publication date: 2023-04-04
Anticipated expiration: 2032-10-31

Abstract

The utility model discloses a pump nozzle cleaning device is glued to point, it includes: the wiping mechanism comprises a shell and a cleaning block capable of adsorbing cleaning liquid, wherein an inflow channel, a cleaning cavity and an outflow channel which are communicated are formed in the shell, the upper end of the cleaning cavity is open, and the cleaning block is arranged in the cleaning cavity; the outlet of the supply pump is connected with the inflow channel through a pipeline; the liquid storage tank comprises a tank body and a filter arranged in the tank body, an inlet of the supply pump is connected with the filter through a pipeline, and the outflow channel is communicated with the tank body through a pipeline. The replenishing pump can pump the cleaning agent at regular time, the operation is simple, the automatic control is realized, and the personnel leakage is reduced; glue does not need to be sprayed when the nozzle is cleaned, so that the waste of glue is reduced; the residual glue on the nozzle can be wiped clean, so that the nozzle is prevented from being coated with glue; the cleaning block stained with alcohol has strong capability of adsorbing residual glue of the nozzle, and the nozzle can be cleaned after being kept for 1 s.

Description

Dispensing pump nozzle cleaning device

Technical Field

The utility model relates to a pump nozzle cleaning device is glued to point.

Background

In the semiconductor industry, underfill is applied by capillary action to fill the gap between the BGA chip and the substrate to a large area, thereby strengthening the substrate. In the prior art, the filling of the underfill adhesive is generally completed by dispensing the adhesive on the substrate by a dispensing pump, the nozzle is cleaned after the dispensing of the adhesive by the dispensing pump is completed each time, and the residual adhesive on the nozzle is sucked by a vacuum suction nozzle in a cleaning mode; the glue spraying action of the glue pump in the nozzle cleaning process can cause the waste of glue for filling the bottom; the vacuum suction nozzle can not be clean completely with the nozzle, and the chance has the cull to leave over, causes the nozzle to glue, leads to spouting to glue crooked, and the point is glued to wafer or electric capacity on, leads to the product to scrap. Because of the nozzle aging leak/clogging/excessive height calibrated after each pump change, the adhesive residue on the nozzle cannot be cleaned.

Disclosure of Invention

The utility model aims at providing a dispensing pump nozzle cleaning device can effectively clean the cull and can reduce glue extravagantly.

In order to achieve the purpose, the utility model adopts the technical proposal that: a dispensing pump nozzle cleaning apparatus, comprising:

the cleaning device comprises a wiping mechanism and a cleaning mechanism, wherein the wiping mechanism comprises a shell and a cleaning block capable of adsorbing cleaning liquid, an inflow channel, a cleaning cavity and an outflow channel which are communicated are formed in the shell, the upper end of the cleaning cavity is open, and the cleaning block is arranged in the cleaning cavity;

the outlet of the replenishment pump is connected with the inflow channel through a pipeline;

the liquid storage tank comprises a tank body and a filter arranged in the tank body, an inlet of the replenishing pump is connected with the filter through a pipeline, and the outflow channel is communicated with the tank body through a pipeline.

Preferably, the inflow passage includes an inflow hole opened on a sidewall of the housing, and an inflow groove located in the housing between the inflow hole and the cleaning chamber. By connecting the inflow opening and the cleaning chamber through the inflow groove, clogging of the inflow opening can be prevented.

Preferably, the outflow channel comprises an outflow hole formed in the side wall of the housing, and an outflow slot located in the housing and located between the outflow hole and the cleaning chamber. The outflow hole and the cleaning chamber are connected by the outflow groove, and the clogging of the outflow hole can be prevented.

Preferably, the projection area of the outflow groove on the upper end face of the shell is larger than that of the inflow groove on the upper end face of the shell. The volume of the outflow groove is larger than that of the inflow groove, so that the cleaning liquid forms a state of rapid inlet and slow outlet in the cleaning cavity, and the blockage of the inflow hole and the outflow hole can be prevented.

Preferably, the outflow slot and the inflow slot have the same length, and the narrowest part of the outflow slot has a width larger than that of the inflow slot. The volume of the outflow groove is larger than that of the inflow groove, so that the cleaning liquid forms a state of rapid inlet and slow outlet in the cleaning cavity, and the blockage of the inflow hole and the outflow hole can be prevented.

Preferably, a stop block is arranged in the cleaning cavity, the stop block is positioned on the left sides of the inflow channel and the outflow channel, and the cleaning block is positioned in the cleaning cavity on the left side of the stop block.

Preferably, the outflow slot and the inflow slot are separated by a partition plate formed in the housing, a gap is formed between the partition plate and the stop block, the inflow slot, the gap and the outflow slot form a branch flow path, and the inflow slot, the cleaning block and the outflow slot form a main flow path. The arrangement of the branch flow path can rapidly bring out impurities which are easy to deposit between the inflow groove and the outflow groove from the cleaning cavity.

Preferably, the height of the bottom of the outflow slot on the left side is higher than the height of the bottom of the outflow slot on the right side. Facilitating the outflow of impurities.

Optimized, the casing includes the casing down, install in last framework on the casing down, locate transparent apron, sealing washer in the upper ledge, just be located on the casing down the periphery of clean chamber, inflow channel and outflow channel is equipped with the seal groove, the sealing washer is located in the seal groove, the apron with the opening has been seted up on the position that clean chamber corresponds.

Preferably, the cover plate is made of an acrylic plate and covers the branch flow channel. Only the opening is left to be in an open shape, so that the cleaning solution is prevented from overflowing from other places to pollute the working environment.

Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages: the replenishing pump can pump the cleaning agent at regular time, the operation is simple, the automatic control is realized, and the personnel leakage is reduced; glue does not need to be sprayed when the nozzle is cleaned, so that the waste of glue is reduced; the residual glue on the nozzle can be wiped clean, so that the nozzle is prevented from being coated with glue; the cleaning block stained with alcohol has strong capability of adsorbing residual glue of the nozzle, and the nozzle can be cleaned after being kept for 1 s.

Drawings

FIG. 1 is a schematic structural view of a nozzle cleaning device of a dispensing pump with a cover plate removed;

FIG. 2 is a schematic structural view of a dispensing pump nozzle cleaning device with a cleaning block removed;

FIG. 3 is a schematic structural view of the lower housing;

wherein: 1. a wiping mechanism; 2. a make-up pump; 3. a liquid storage tank; 4. a socket; 10. a stopper; 11. a housing; 12. a cleaning block; 13. an inflow channel; 14. cleaning the cavity; 15. an outflow channel; 16. an inflow hole; 17. a flow-in groove; 18. an outflow hole; 19. an outflow channel; 110. a lower housing; 111. a partition plate; 112. an upper frame body; 113. a cover plate; 114. a seal ring; 115. a sealing groove; 116. an opening; 31. a box body; 32. and (3) a filter.

Detailed Description

The invention will be further described with reference to examples of embodiments shown in the drawings.

As shown in fig. 1 to 3, the dispensing pump nozzle cleaning apparatus includes: wiping mechanism 1, make-up pump 2, liquid reserve tank 3, socket 4 for supplying power to make-up pump 2.

The wiping mechanism 1 comprises a shell 11 and a cleaning block 12 capable of adsorbing cleaning liquid, wherein an inflow channel 13, a cleaning cavity 14 and an outflow channel 15 which are communicated with each other are formed in the shell 11, the upper end of the cleaning cavity 14 is open, and the cleaning block 12 is arranged in the cleaning cavity 14; the inflow channel 13 includes an inflow hole 16 opened on a sidewall of the housing 11, and an inflow groove 17 located in the housing 11 between the inflow hole 16 and the cleaning chamber 14. By connecting the inflow opening 16 and the cleaning chamber 14 through the inflow groove 17, clogging of the inflow opening 16 can be prevented. The outflow channel 15 comprises an outflow opening 18 opening in a side wall of the housing 11, an outflow slot 19 in the housing 11 between the outflow opening 18 and the cleaning chamber 14. By connecting the outflow hole 18 and the cleaning chamber 14 through the outflow groove 19, clogging of the outflow hole 18 can be prevented. The projection area of the outflow slot 19 on the upper end surface of the housing 11 is larger than the projection area of the inflow slot 17 on the upper end surface of the housing 11. The volume of the outflow slot 19 is larger than that of the inflow slot 17, so that the cleaning liquid forms a state of rapid inlet and slow outlet in the cleaning chamber 14, and the blockage of the inflow hole 16 and the outflow hole 18 can be prevented. The outflow slot 19 is the same length as the inflow slot 17, and the narrowest portion of the outflow slot 19 has a width greater than that of the inflow slot 17. The volume of the outflow slot 19 is larger than that of the inflow slot 17, so that the cleaning liquid forms a state of rapid inlet and slow outlet in the cleaning chamber 14, and the blockage of the inflow hole 16 and the outflow hole 18 can be prevented. A block 10 is arranged in the cleaning cavity 14, the block 10 is positioned at the left side of the inflow channel 13 and the outflow channel 15, and the cleaning block 12 is a wiping sponge and is positioned in the cleaning cavity 14 at the left side of the block 10. The outflow groove 19 and the inflow groove 17 are separated by a partition plate 111 formed in the housing 11, a gap is provided between the partition plate 111 and the stopper 10, the inflow groove 17, the gap, and the outflow groove 19 form a branch flow path, and the inflow groove 17, the cleaning block 12, and the outflow groove 19 form a main flow path. The provision of the branch flow path enables impurities, which are likely to be deposited between the inflow chute 17 and the outflow chute 19, to be quickly carried out of the cleaning chamber 14. The height of the left side of the trough bottom of the outflow channel 19 is higher than the height of the right side thereof. Facilitating the outflow of impurities. The housing 11 includes a lower housing 110, an upper frame 112 mounted on the lower housing 110, a transparent cover plate 113 disposed in the upper frame 112, and a sealing ring 114, a sealing groove 115 is disposed on the lower housing 110 and on the periphery of the cleaning chamber 14, the inflow channel 13, and the outflow channel 15, the sealing ring 114 is disposed in the sealing groove 115, and an opening 116 is disposed in a position of the cover plate 113 corresponding to the cleaning chamber 14. The cover plate 113 is made of an acrylic plate, and covers the branch flow path. Only the opening 116 is left to form a needle wiping area in an opening shape, so that cleaning liquid is prevented from overflowing from other places to pollute the working environment.

The outlet of the supply pump 2 is connected with the inflow channel 13 through a pipeline; the liquid storage tank 3 includes a tank 31 and a filter 32 provided in the tank 31, an inlet of the charge pump 2 is connected to the filter 32 through a pipe, and the outflow passage 15 is communicated with the tank 31 through a pipe 5.

The working engineering of the device is as follows: after the dispensing action is finished, the nozzle of the dispensing pump moves to a needle head wiping area, the dispensing head descends into the cleaning block 12 and stays for several seconds, usually 1 second, and the cleaning block 12 can absorb the residual glue on the nozzle completely; regular supply pump 2 can supply alcohol to wiping mechanism 1 every hour, and in bottom filling glue on the sponge can be diluted and dissolved to alcohol, flowed into the alcohol bucket along with unnecessary alcohol, there was the filter inlet tube head in the alcohol bucket, can filter impurity and remain glue, and the circulation is reciprocal like this and is reached clean effect.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. The utility model provides a point glue pump nozzle cleaning device which characterized in that, it includes:

the liquid storage tank comprises a tank body and a filter arranged in the tank body, the inlet of the replenishing pump is connected with the filter through a pipeline, and the outflow channel is communicated with the tank body through a pipeline.

2. The dispensing pump nozzle cleaning apparatus of claim 1, wherein: the inflow passage comprises an inflow hole arranged on the side wall of the shell and an inflow groove which is positioned in the shell and is positioned between the inflow hole and the cleaning cavity.

3. The dispensing pump nozzle cleaning apparatus of claim 2, wherein: the outflow channel comprises an outflow hole arranged on the side wall of the shell and an outflow groove which is positioned in the shell and is positioned between the outflow hole and the cleaning cavity.

4. The dispensing pump nozzle cleaning apparatus of claim 3, wherein: the projection area of the outflow groove on the upper end face of the shell is larger than that of the inflow groove on the upper end face of the shell.

5. The dispensing pump nozzle cleaning apparatus of claim 4, wherein: the outflow groove and the inflow groove are the same in length, and the narrowest part of the outflow groove is wider than the inflow groove.

6. The dispensing pump nozzle cleaning apparatus of claim 3, wherein: a stop block is arranged in the cleaning cavity and is positioned on the left side of the inflow channel and the outflow channel, and the cleaning block is positioned in the cleaning cavity on the left side of the stop block.

7. The dispensing pump nozzle cleaning apparatus of claim 6, wherein: the outflow groove and the inflow groove are separated by a partition plate formed in the shell, a gap is formed between the partition plate and the stop block, the inflow groove, the gap and the outflow groove form a branch flow path, and the inflow groove, the cleaning block and the outflow groove form a main flow path.

8. The dispensing pump nozzle cleaning apparatus of claim 3, wherein: the left side of the bottom of the outflow slot is higher than the right side thereof.

9. The dispensing pump nozzle cleaning apparatus of claim 7, wherein: the casing includes casing down, install in last framework on the casing down, locate transparent apron, sealing washer in the last framework, just be located down on the casing the periphery of clean chamber, inflow channel and outflow channel is equipped with the seal groove, the sealing washer is located in the seal groove, the apron with the opening has been seted up on the position that clean chamber corresponds.

10. The dispensing pump nozzle cleaning apparatus of claim 9, wherein: the cover plate is made of an acrylic plate and is covered on the branch road.