CN215088387U

CN215088387U - Rosin coating machine for circuit board

Info

Publication number: CN215088387U
Application number: CN202120298854.8U
Authority: CN
Inventors: 蒋军林; 何江华; 易煌; 唐文元; 周路君; 陈志鸿
Original assignee: Zhongshan Guochangrong Electronics Co ltd
Current assignee: Zhongshan Guochangrong Electronics Co ltd
Priority date: 2021-02-02
Filing date: 2021-02-02
Publication date: 2021-12-10
Anticipated expiration: 2031-02-02

Abstract

The utility model discloses a rosin machine is scribbled to circuit board, it includes: the coating machine comprises a machine base, a coating roller, a supporting roller and a cleaning mechanism; the coating roller is rotatably arranged on the base; the supporting roller is rotatably arranged on the machine base and can be matched with the coating roller to clamp a workpiece; the cleaning mechanism is arranged on the machine base and can wash away rosin on the supporting roller. In the rosin coating operation process, the cleaning mechanism can clean the supporting roller, so that the supporting roller is prevented from being stained with rosin. The cleaning mechanism is arranged on the machine base, so that the supporting roll can be cleaned simply and directly in time, and rosin on the supporting roll can be removed, and the machine base has the advantages of time saving, labor saving, simplicity and high efficiency.

Description

Rosin coating machine for circuit board

Technical Field

The utility model relates to a circuit board processing field, in particular to rosin machine is scribbled to circuit board.

Background

As is well known, rosin serving as a good surface treatment agent can play a role in preventing oxidation of a copper surface and increase the fluidity of soldering tin, is beneficial to wetting soldering tin weldment and increases the binding force of a soldering tin contact surface. Because of low cost, simple operation, environmental protection and no pollution, the rosin is added on the circuit board weldment, which becomes a main circuit board surface treatment process.

At present, a machine for coating rosin on a circuit board generally utilizes a coating roller and a supporting roller to cooperate and clamp for feeding, and simultaneously realizes rosin coating. However, in the long-time production process, the rosin can fall and be adsorbed on the supporting roller, so that the thick rosin layer is adhered to the surface, not needing to be coated by the rosin, of the circuit board, the quality is abnormal, the phenomena of reworking and the like are needed, and finally, the productivity is reduced, and the cost is increased.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a rosin machine is scribbled to circuit board can self-cleaning roller spare.

According to the utility model discloses a rosin machine is scribbled to circuit board of first aspect embodiment, include: the coating machine comprises a machine base, a coating roller, a supporting roller and a cleaning mechanism; the coating roller is rotatably arranged on the base; the supporting roller is rotatably arranged on the machine base and can be matched with the coating roller to clamp a workpiece; the cleaning mechanism is arranged on the machine base and can wash away rosin on the supporting roller.

According to the utility model discloses rosin machine is scribbled to circuit board has following beneficial effect at least: the circuit board, supported and carried by the backing roll, will move through the area between the backing roll and the applicator roll. While passing through, the coating roller uniformly coats the rosin on the circuit board, thereby completing the rosin coating operation. In the rosin coating process, the cleaning mechanism can clean the supporting roller, so that the supporting roller is prevented from being stained with rosin.

The cleaning mechanism is arranged on the machine base, so that the supporting roll can be cleaned simply and directly in time, and rosin on the supporting roll can be removed, and the machine base has the advantages of time saving, labor saving, simplicity and high efficiency.

According to some embodiments of the utility model, clean mechanism including set up in the liquid medicine pipe of backing roll side, the liquid medicine pipe is connected with the liquid medicine case, the liquid medicine pipe have with the parallel material portion of washing of backing roll, be provided with a plurality of liquid outlets on the lateral wall of material portion of washing, the liquid medicine pipe is connected with the driving pump.

According to some embodiments of the invention, the cleaning mechanism comprises a return structure provided on the drug solution tank.

According to some embodiments of the utility model, the backflow structure is including setting up the last backflow baffle of liquid medicine case, backflow baffle encircles the liquid medicine pipe configuration is formed with the backward flow groove, the backing roll configuration in the notch department of backward flow groove, the backward flow groove with the inside intercommunication of liquid medicine case.

According to some embodiments of the present invention, a backflow port is disposed in the backflow groove, and the backflow port communicates with the inside of the backflow groove and the liquid medicine tank; the backflow groove is gradually inclined downwards along the direction close to the backflow port.

According to the utility model discloses a some embodiments, rotationally be equipped with the material loading roller on the frame, the material loading roller with the coating roller offsets, be provided with the material loading pipe on the frame, the mouth of pipe of material loading pipe can move and be close to the material loading roller or keep away from.

According to the utility model discloses a some embodiments, rotationally be provided with the connecting seat on the frame, be provided with the material loading cylinder on the connecting seat, the nose end of material loading pipe connect in on the cylinder pole of material loading cylinder.

According to some embodiments of the utility model, the material loading roller is connected with adjustment mechanism, adjustment mechanism can drive the material loading roller motion is close to or keeps away from the coating roller.

According to some embodiments of the utility model, the backing roll is connected with adjustment mechanism, adjustment mechanism can drive the backing roll motion is close to or keeps away from the applicator roll.

According to some embodiments of the invention, the adjusting mechanism comprises a mounting seat on which the feeding roller or the supporting roller is rotatably mounted; the base is rotatably provided with a screw rod, the mounting seat is provided with a nut, and the screw rod is mounted in the nut in a matched mode.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic view of a rosin coating machine for a circuit board according to an embodiment of the present invention;

FIG. 2 is a schematic view of a cleaning mechanism of the circuit board rosin coater shown in FIG. 1;

FIG. 3 is an enlarged schematic view at A shown in FIG. 2;

fig. 4 is a schematic cross-sectional view of a cleaning mechanism of the circuit board rosin coater shown in fig. 1.

Reference numerals: 100 is the frame, 110 is the mount table, 120 is the mount pad, 200 is the paint roller, 300 is the material loading roller, 400 is the backing roll, 500 is adjustment mechanism, 510 is adjust knob, 550 is the adjustment cylinder, 570 is to pushing away the ejector pad, 600 is the material loading pipe, 630 is the material loading cylinder, 650 is the connecting seat, 700 is clean mechanism, 710 is the spray tank, 720 is the return chute, 725 is the backward flow baffle, 730 is the backward flow mouth, 750 is the spray tube, 755 is the liquid outlet, 760 is the drive pump.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1, a circuit board rosin coating machine includes: a stand 100, a paint roller 200, a support roller 400 and a cleaning mechanism 700; the paint roller 200 is rotatably provided on the stand 100; the supporting roller 400 is rotatably arranged on the stand 100, and the supporting roller 400 can be matched with the paint roller 200 to clamp a workpiece; the cleaning mechanism 700 is provided on the frame 100, and the cleaning mechanism 700 can wash off the rosin on the supporting roller 400. The board, supported and carried by the backing roll 400, will move through the area between the backing roll 400 and the applicator roll 200. While passing through, the applicator roller 200 uniformly applies the rosin to the circuit board, thereby completing the rosin application. During the rosin coating operation, the cleaning mechanism 700 cleans the support roller 400, thereby preventing the support roller 400 from being contaminated with rosin. The cleaning mechanism 700 is arranged on the stand 100, so that the support roller 400 can be cleaned simply and directly in time, and rosin on the support roller 400 can be removed, thereby having the advantages of time saving, labor saving, simplicity and high efficiency.

In some embodiments, referring to fig. 2, the cleaning mechanism 700 includes a drug solution tube 750 disposed beside the supporting roller 400, the drug solution tube 750 is connected to the drug solution tank 710, the drug solution tube 750 has a material washing portion parallel to the supporting roller 400, a plurality of liquid outlets 755 are disposed on a side wall of the material washing portion, and the drug solution tube 750 is connected to a driving pump 760. The chemical liquid flows from the chemical liquid tank 710 into the chemical liquid pipe 750 by the driving of the driving pump 760, and then is ejected from the liquid outlet 755, thereby cleaning the support roller 400. The washing part parallel to the support roller 400 may enable the chemical solution to wash various portions on the axis of the support roller 400, thereby enhancing a washing effect of the support roller 400.

It is contemplated that cleaning mechanism 700 may be comprised of other components, such as high pressure spray heads (not shown) arranged in rows on the sides of support rollers 400. The high pressure nozzle cleans the support roller 400 by spraying a liquid medicine. The specific implementation manner may be adjusted according to the actual situation, and is not limited herein.

In certain embodiments, referring to fig. 2, the cleaning mechanism 700 includes a return structure disposed on the drug solution tank 710. The backflow structure can recover the liquid medicine sprayed from the liquid medicine pipe 750, thereby avoiding the waste of the liquid medicine and the pollution of the liquid medicine to the environment.

In some embodiments, referring to fig. 4, the backflow structure includes a backflow barrier 725 disposed on the drug solution tank 710, the backflow barrier 725 is disposed around the drug solution pipe 750 to form a backflow groove 720, the support roller 400 is disposed at a notch of the backflow groove 720, and the backflow groove 720 communicates with the interior of the drug solution tank 710. The backflow barrier 725 may block the liquid medicine discharged from the liquid outlet 755, so that the liquid medicine falls into the backflow groove 720. Since the return tank 720 is communicated with the chemical tank 710, the chemical flows back into the chemical tank 710 in the return tank 720, and the return operation is simply and directly completed.

In some embodiments, referring to fig. 3, a backflow port 730 is disposed in the backflow groove 720, and the backflow port 730 communicates the backflow groove 720 and the interior of the drug solution tank 710; the return grooves 720 are gradually inclined downward in a direction approaching the return port 730. The inclined return tank 720 allows the chemical in the return tank 720 to gradually flow toward the return port 730 under the influence of its own weight and finally to flow back into the chemical tank 710, thereby simply and directly performing a return operation.

In some embodiments, referring to fig. 1, the loading roller 300 is rotatably disposed on the base 100, the loading roller 300 abuts against the coating roller 200, the loading pipe 600 is disposed on the base 100, and the nozzle of the loading pipe 600 can move close to or away from the loading roller 300. After the rosin is applied to the applicator roll 300 by the applicator tube 600, the applicator roll 300 will roll and move the rosin against the applicator roll 200. By controlling the distance between the loading roller 300 and the coating roller 200, the thickness of the rosin coated on the coating roller 200 can be directly and effectively controlled, so that the rosin coating amount of the circuit board can be adjusted.

In some embodiments, referring to fig. 1, a connection base 650 is rotatably disposed on the machine base 100, a feeding cylinder 630 is disposed on the connection base 650, and a pipe end of the feeding pipe 600 is connected to a cylinder rod of the feeding cylinder 630. The rotation of the connecting base 650 and the extension of the feeding cylinder 630 enable the pipe orifice end of the feeding pipe 600 to be adjusted in position at a plurality of angles and distances, so that the rosin can be better coated on the feeding roller 300.

Specifically, the connection base 650 is connected to a driving motor (not shown).

In certain embodiments, referring to FIG. 1, an adjustment mechanism 500 is coupled to the applicator roll 300, and the adjustment mechanism 500 is capable of moving the applicator roll 300 closer to or further away from the applicator roll 200. The adjustment of the feeding roller 300 by the adjusting mechanism 500 can change the distance between the feeding roller 300 and the coating roller 200, so as to change the thickness of the rosin coated on the coating roller 200, and further simply and directly realize the adjustment of the thickness of the rosin on the circuit board.

In some embodiments, referring to FIG. 1, an adjustment mechanism 500 is coupled to backing roll 400, and adjustment mechanism 500 is capable of moving backing roll 400 toward and away from applicator roll 200. The adjustment of the support roll 400 by the adjustment mechanism 500 may cause the distance between the support roll 400 and the applicator roll 200 to vary, thereby changing the support and grip on the applicator roll 200 to ensure that the circuit board is evenly coated with rosin.

In some embodiments, referring to fig. 1, the adjusting mechanism 500 includes a mounting base 120, and the feeding roller 300 or the supporting roller 400 is rotatably mounted on the mounting base 120; a screw rod is rotatably disposed on the base 100, and a nut is disposed on the mounting seat 120, and the screw rod is fittingly mounted in the nut. The rotation of the screw rod can be converted into the axial movement of the nut through the matching of the screw rod and the nut, so that the feeding roller 300 or the supporting roller 400 is simply and directly driven to move and is close to or far away from the coating roller 200, and the adjustment operation is realized.

Specifically, the two sides of the machine base 100 are provided with mounting platforms 110, and the mounting platform 120 is movably mounted between the two mounting platforms 110 through a sliding rail and sliding block pair.

It is envisioned that the adjusting mechanism 500 may also be composed of other components, such as an adjusting cylinder 550 disposed on the base 100, and the adjusting cylinder 550 is connected with a pushing block 570, and the pushing block 570 pushes the mounting seat 120 back and forth to adjust the position of the mounting seat 120. The specific implementation manner may be adjusted according to the actual situation, and is not limited herein.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. The utility model provides a rosin machine is scribbled to circuit board which characterized in that includes:

a frame (100);

a paint roller (200) rotatably provided on the stand (100);

the supporting roller (400) is rotatably arranged on the stand (100), and the supporting roller (400) can be matched with the coating roller (200) to clamp a workpiece;

the cleaning mechanism (700) is arranged on the machine base (100), and the cleaning mechanism (700) can wash away rosin on the supporting roller (400).

2. The circuit board rosin coating machine of claim 1, wherein:

clean mechanism (700) including set up in medicine liquid pipe (750) of backing roll (400) side, medicine liquid pipe (750) are connected with liquid medicine case (710), medicine liquid pipe (750) have with the parallel material portion of washing of backing roll (400), be provided with a plurality of liquid outlets (755) on the lateral wall of material portion of washing, medicine liquid pipe (750) are connected with actuating pump (760).

3. The circuit board rosin coating machine of claim 2, wherein:

the cleaning mechanism (700) comprises a backflow structure arranged on the liquid medicine tank (710).

4. The circuit board rosin coating machine of claim 3, wherein:

the backflow structure comprises a backflow baffle (725) arranged on the liquid medicine box (710), the backflow baffle (725) surrounds the liquid medicine pipe (750) and is provided with a backflow groove (720), the supporting roller (400) is arranged at the notch of the backflow groove (720), and the backflow groove (720) is communicated with the inside of the liquid medicine box (710).

5. The circuit board rosin coating machine of claim 4, wherein:

a backflow port (730) is arranged in the backflow groove (720), and the backflow port (730) is communicated with the backflow groove (720) and the interior of the liquid medicine box (710); the backflow groove (720) is gradually inclined downwards along the direction close to the backflow port (730).

6. The circuit board rosin coating machine of claim 1, wherein:

the coating machine is characterized in that a feeding roller (300) is rotatably arranged on the machine base (100), the feeding roller (300) is abutted to the coating roller (200), a feeding pipe (600) is arranged on the machine base (100), and a pipe orifice of the feeding pipe (600) can move close to or far away from the feeding roller (300).

7. The circuit board rosin coating machine of claim 6, wherein:

the automatic feeding device is characterized in that a connecting seat (650) is rotatably arranged on the base (100), a feeding cylinder (630) is arranged on the connecting seat (650), and the pipe orifice end of the feeding pipe (600) is connected to the cylinder rod of the feeding cylinder (630).

8. The circuit board rosin coating machine of claim 6, wherein:

the feeding roller (300) is connected with an adjusting mechanism (500), and the adjusting mechanism (500) can drive the feeding roller (300) to move close to or far away from the coating roller (200).

9. The circuit board rosin coating machine of claim 6, wherein:

the coating roller is characterized in that the supporting roller (400) is connected with an adjusting mechanism (500), and the adjusting mechanism (500) can drive the supporting roller (400) to move close to or far away from the coating roller (200).

10. The circuit board rosin coating machine according to claim 8 or 9, characterized in that:

the adjusting mechanism (500) comprises a mounting seat (120), and the feeding roller (300) or the supporting roller (400) is rotatably mounted on the mounting seat (120); the base (100) is rotatably provided with a screw rod, the mounting seat (120) is provided with a nut, and the screw rod is arranged in the nut in a matching manner.