CN215088095U

CN215088095U - Universal adjustable nozzle and PCBA board belt cleaning device who has this nozzle

Info

Publication number: CN215088095U
Application number: CN202022320922.4U
Authority: CN
Inventors: 方敏; 董辉
Original assignee: Shenzhen Sam Electronic Equipment Co ltd
Current assignee: Shenzhen Sam Electronic Equipment Co ltd
Priority date: 2020-10-16
Filing date: 2020-10-16
Publication date: 2021-12-10
Anticipated expiration: 2030-10-16

Abstract

The utility model discloses a universal adjustable nozzle and a PCBA board cleaning device with the same, wherein the universal adjustable nozzle comprises a universal ball head, a locking head, a connector and a nozzle, when the connector is connected with the locking head, a spherical space with an opening at the lower end is formed, the universal ball head can rotate in the spherical space, when the connector is screwed down with the locking head, the universal ball head can be fixed through friction force; the PCBA board cleaning device comprises a plurality of the universal adjustable nozzles, and the spraying directions of the universal adjustable nozzles are various. The utility model discloses a control spray angle is applied to and washs dead angle or anomalous work piece, can adjust the position to single nozzle is nimble to reach the best surface spray rinsing effect, improves the cleaning efficiency, simple structure is convenient for implement moreover.

Description

Universal adjustable nozzle and PCBA board belt cleaning device who has this nozzle

Technical Field

The utility model relates to a PCBA cleaning equipment field, especially a universal adjustable nozzle and have PCBA board belt cleaning device of this nozzle.

Background

With the further increasing demands for miniaturization, function integration and large storage space of mobile consumer electronics, the miniaturization and high-density packaging forms of components are increasing. Such as SIP (system in package), flip chip, etc., are becoming more and more widely used. In the technical processes of SIP system-level chip packaging, POP stacked chip assembly and IGBT power semiconductor module, solder paste and soldering paste are required to be used for carrying out precise soldering process, flux residues of the solder paste and the soldering paste can be naturally remained after soldering, and the flux residues are required to be thoroughly removed in order to ensure the technical requirements of electrical appliance functions and reliability of devices and components, so that the cleaning process is very necessary. However, in the cleaning process of the existing online PCBA cleaning machine, the nozzles are installed in a fixed mode, the angle cannot be adjusted or the adjusted angle is too small, and an efficient cleaning state cannot be achieved. In addition, the pollutants remained on the PCBA substrate easily enter the adjacent cavities along with the conveying of the substrate, so that the adjacent cavities are polluted, the product cannot be cleaned, and the cleanliness is poor.

SUMMERY OF THE UTILITY MODEL

To the above problem that prior art exists, the utility model provides an universal adjustable nozzle for PCBA board washs, and concrete scheme is as follows:

comprises a universal ball head, a locking head, a connector and a nozzle; a threaded hole is tapped on the universal ball head, and one end of the threaded hole is in threaded connection with the nozzle; the upper part of the locking head is connected with the connector, the lower end of the locking head is provided with an inner hole which is of a hemispherical structure, and the size of the spherical surface is the same as that of the universal ball head; the lower part of the connector is provided with an inner hole which is of a hemispherical structure, the size of the spherical surface is consistent with that of the spherical surface of the universal ball head, the upper part of the connector is provided with a structure connected with the spray pipe, and the upper part of the connector is provided with an inner through hole which is communicated with the spherical surface at the lower part; when the connector with form a lower extreme open-ended spherical space after the locking head is connected, universal bulb can be in spherical space internal rotation, when the connector with when the locking head is screwed up, can make through frictional force universal bulb is fixed.

Preferably, the locking head upper portion hole is the screw hole, the connector lower part is equipped with the external screw thread with locking head upper portion internal thread matched with for with locking head is connected.

The utility model provides an universal adjustable nozzle has following beneficial effect:

the connector adjusts the spray angle of the connecting nozzle through a spherical structure, fixes the angle through a threaded connection mode, realizes that the connector is applied to cleaning dead corners or irregular workpieces by controlling the spray angle, can flexibly adjust the direction of a single nozzle to achieve the best surface spray cleaning effect, improves the cleaning efficiency, and is simple in structure and convenient to implement.

The utility model also provides a PCBA board belt cleaning device for the PCBA board washs, and concrete scheme is as follows:

comprises a plurality of the universally adjustable nozzles;

specifically, the PCBA board cleaning device comprises a cleaning cavity, the cleaning cavity is located in front of the wind cutting cavity, and when the PCBA board cleaning device is applied, the PCBA board is conveyed from front to back to pass through the cleaning cavity; the washing intracavity is equipped with the spray rinsing subassembly, including a plurality of spray lance, be equipped with a plurality of under the spray lance universal adjustable nozzle, the spray direction of universal adjustable nozzle under the spray lance presents for multiple.

Preferably, the universal adjustable nozzles are arranged in a plurality of rows, the number of the universal adjustable nozzles is more than six rows, and the universal adjustable nozzles are sequentially arranged in parallel from front to back; the spray direction of the last row of universally adjustable nozzles faces forwards and downwards.

More preferably, the direction of spray from the front-most row of universally adjustable nozzles is directed directly below.

More preferably, the injection direction of the middle universally adjustable nozzle is various, including any two or more of left lower, right lower, left front lower, right front lower, left rear lower, right rear lower and rear lower.

More preferably, the arrangement of the spray directions of the universally adjustable nozzles of the middle rows is as follows: the spraying directions of one row of the universally adjustable nozzles are all left front lower or left rear lower, and correspondingly, the spraying directions of the other row of the universally adjustable nozzles are all right rear lower or right front lower.

Preferably, the plurality of spray bars are arranged in parallel in sequence from front to back, so that the multi-row arrangement of the nozzles is realized.

More preferably, the spray direction of the last row of universally adjustable nozzles forms an angle of greater than or equal to 30 ° and less than or equal to 45 ° with the conveying direction of the PCBA board.

Preferably, the PCBA board cleaning device further comprises an air-cut chamber arranged behind the cleaning chamber, a process section partition passage for the PCBA board to pass through is arranged between the cleaning chamber and the air-cut chamber, and when the PCBA board cleaning device is applied, the PCBA board is conveyed from front to back and sequentially passes through the cleaning chamber and the air-cut chamber;

a plurality of air cutting devices are arranged in the air cutting chamber;

specifically, the wind cutting device is a wind knife.

The utility model provides a PCBA board belt cleaning device has following beneficial effect:

1. the PCBA board is cleaned by adopting the combination of different spraying directions of the nozzles, so that the cleaning capability is stronger; 2. the PCBA board can be cleaned in four directions under pressure, so that the cleaning efficiency is higher;

3. because the cleaning liquid can permeate and strip the soldering flux under pressure from all directions, the cleaning liquid has better cleaning capability for low-clearance components and can clean products with smaller clearances;

4. the installation mode of the first spray rod and the last spray rod of each process section is different from that of the traditional online cleaning machine, so that the loss of cleaning liquid can be reduced, and the cleaning cost is reduced;

5. the spray direction of the universally adjustable nozzle below the rearmost spray rod 23 is towards the front lower side, so that the cleaning action direction is opposite to the conveying direction of the PCBA, cleaning liquid can not flow into the next chamber along with the PCBA, and the pollution of pollutants to adjacent chambers is reduced.

Drawings

FIG. 1 is a schematic structural view of a universally adjustable nozzle according to an embodiment of the present invention;

FIG. 2 is a schematic view of the structure of a PCBA board cleaning device according to an embodiment of the present invention;

FIG. 3 is a schematic view of the jetting direction of the rows of universally adjustable nozzles of the PCBA board cleaning device in a front view state;

FIG. 4 is a schematic view of the spray direction of the rows of universally adjustable nozzles of the PCBA board cleaning device in a bottom view.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments. In the description of the present embodiment, the terms "front", "rear", "upper", "lower", "left", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the present invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

Referring to fig. 1, the embodiment provides a universal adjustable nozzle for cleaning a PCBA plate, which comprises a universal ball head 11, a locking head 12, a connector 13 and a nozzle 14; a threaded hole is tapped on the universal ball head 1, and one end of the threaded hole is in threaded connection with the nozzle 14; the inner hole of the upper part of the locking head 12 is a threaded hole, the inner hole of the lower end is of a hemispherical structure, and the size of the spherical surface is the same as that of the universal ball head 11; the hole is the hemisphere face structure in 3 lower parts of connector, spherical dimension with universal bulb 11's spherical dimension is unanimous, and the lower part is equipped with the external screw thread with locking head 12 upper portion internal thread matched with, be used for with locking head 12 is connected, the upper portion of connector 3 is equipped with the external screw thread for be connected with the spray tube, and interior through-hole is established on upper portion, communicates with lower part sphere. When the connector 3 with form a lower extreme open-ended spherical space after the locking head 12 is connected, universal bulb 1 can be 60 rotatory in the spherical space, when connector 13 with when the locking head 12 is screwed up, can make through frictional force universal bulb 11 is fixed.

The universally adjustable nozzle provided by the embodiment has the following advantages:

Referring to fig. 2 to 4, the present embodiment further provides a PCBA board cleaning apparatus, including the above-mentioned universally adjustable nozzle; specifically, the PCBA board cleaning device comprises a cleaning cavity 21 and a wind-cut cavity 22 which are formed by a shell, the cleaning cavity 21 is located in front of the wind-cut cavity 22, a process section partition passage for the PCBA board to pass through is arranged between the cleaning cavity 21 and the wind-cut cavity 22, and when the PCBA board cleaning device is applied, the PCBA board 100 is conveyed from front to back and sequentially passes through the cleaning cavity 21 and the wind-cut cavity 22, and finally cleaning is finished; wash the intracavity and be equipped with spray rinsing subassembly 200 in 21, including six spray lance 23 of parallel arrangement in proper order around, every spray lance 23 has a plurality of universal adjustable nozzle, six the spray direction of the universal adjustable nozzle under the spray lance 23 presents for multiple.

Specifically, the spray direction of the universally adjustable nozzle below the rearmost spray bar 23 forms an included angle a towards the front lower side with the conveying direction of the PCBA board 100, and a better scheme is as follows: the included angle a is more than or equal to 30 degrees and less than or equal to 45 degrees; the spraying direction of the universally adjustable nozzle below the frontmost spray rod 23 faces to the right lower side and is used for wetting and softening the rosin soldering flux; the spraying directions of the universally adjustable nozzles below the middle four spray rods 23 are various, and the nozzles comprise more than any three of left lower nozzle, right lower nozzle, left front lower nozzle, right front lower nozzle, left rear lower nozzle, right rear lower nozzle and rear lower nozzle.

More specifically, the spray directions of the universally adjustable nozzles of the four spray bars 23 in the middle are arranged as follows: the spraying directions of one lower universal adjustable nozzle are left front lower or left rear lower, and correspondingly, the spraying directions of the other lower universal adjustable nozzle are right rear lower or right front lower.

A plurality of air cutting devices 24 are arranged in the air cutting chamber 22 and used for cutting water for the cleaned PCBA board 100, and the air cutting devices are air knives.

In practical application, the spraying direction of the universally adjustable nozzle can be adjusted according to product characteristics.

The utility model provides a PCBA board belt cleaning device has following advantage:

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims

1. The utility model provides a universal adjustable nozzle for PCBA board washs which characterized in that: comprises a universal ball head, a locking head, a connector and a nozzle; a threaded hole is tapped on the universal ball head, and one end of the threaded hole is in threaded connection with the nozzle; the upper part of the locking head is connected with the connector, the lower end of the locking head is provided with an inner hole which is of a hemispherical structure, and the size of the spherical surface is the same as that of the universal ball head; the lower part of the connector is provided with an inner hole which is of a hemispherical structure, the size of the spherical surface is consistent with that of the spherical surface of the universal ball head, the upper part of the connector is provided with a structure connected with the spray pipe, and the upper part of the connector is provided with an inner through hole which is communicated with the spherical surface at the lower part; when the connector with form a lower extreme open-ended spherical space after the locking head is connected, universal bulb can be in spherical space internal rotation, when the connector with when the locking head is screwed up, can make through frictional force universal bulb is fixed.

2. The universally adjustable nozzle of claim 1, wherein: the locking head upper portion hole is the screw hole, the connector lower part is equipped with the external screw thread with locking head upper portion internal thread matched with for with the locking head is connected.

3. The utility model provides a PCBA board belt cleaning device which characterized in that: comprising a universally adjustable nozzle according to claim 1 or 2;

4. A PCBA board cleaning apparatus according to claim 3, wherein: the universal adjustable nozzles are arranged in a plurality of rows, the number of the universal adjustable nozzles is more than six rows, and the universal adjustable nozzles are sequentially arranged in parallel from front to back; the spray direction of the last row of universally adjustable nozzles faces forwards and downwards.

5. The PCBA plate cleaning device as recited in claim 4, wherein: the jet direction of the foremost row of universally adjustable nozzles faces towards the right lower side.

6. A PCBA plate cleaning device according to claim 5, in which: the jet direction of the middle universal adjustable nozzle is various, and comprises more than two of any of left lower, right lower, left front lower, right front lower, left rear lower, right rear lower and rear lower.

7. The PCBA plate cleaning device as recited in claim 6, wherein: the arrangement of the spray directions of the universally adjustable nozzles of the middle rows is as follows: the spraying directions of one row of the universally adjustable nozzles are all left front lower or left rear lower, and correspondingly, the spraying directions of the other row of the universally adjustable nozzles are all right rear lower or right front lower.

8. A PCBA plate cleaning device according to any one of claims 4 to 7, in which: the spray rods are sequentially arranged in parallel front and back, so that the multi-row arrangement of the nozzles is realized.

9. The PCBA plate cleaning device as recited in claim 4, wherein: the included angle formed by the spraying direction of the universally adjustable nozzles in the last row and the conveying direction of the PCBA board is more than or equal to 30 degrees and less than or equal to 45 degrees.

10. A PCBA board cleaning apparatus according to claim 3, wherein: the PCBA board cleaning device also comprises an air-cut chamber arranged behind the cleaning cavity, wherein a process section partition passage for the PCBA board to pass through is arranged between the cleaning cavity and the air-cut chamber;

a plurality of air cutting devices are arranged in the air cutting chamber;

specifically, the wind cutting device is a wind knife.