CN112122196A

CN112122196A - Circuit board cleaning and conveying device for assembly line

Info

Publication number: CN112122196A
Application number: CN202010953165.6A
Authority: CN
Inventors: 廖莲英
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-11
Filing date: 2020-09-11
Publication date: 2020-12-25

Abstract

The invention discloses a circuit board cleaning and conveying device, and belongs to the field of mechanical equipment. The technical scheme of the invention is as follows: the device is characterized in that two conveying chains are respectively sleeved on two parallel mounting plates, the driving chain wheel and the driven chain wheel which are rotatably connected with the two ends of the mounting plates rotate to drive the mounting plates to rotate, the distance between the two conveying chains is adjusted to lift and convey different circuit boards, when the circuit boards move and pass through the upper parts of the brush rollers, the bottoms of the circuit boards are scrubbed by the brush rollers which move in a reciprocating mode, and finally the circuit boards leave from the other ends along with the conveying of the conveying chains.

Description

Circuit board cleaning and conveying device for assembly line

Technical Field

The invention belongs to the field of mechanical equipment, and particularly relates to a circuit board cleaning device for a production line.

Background

In the process of welding and assembling a circuit board in the electronic production industry, after components on the circuit board are processed by various welding processes, residues such as soldering flux, rosin and the like are remained in a pin area of the components on the back of the circuit board due to the influence of the soldering flux, the soldering flux and the environment, the residues directly influence the quality of products, even short circuit occurs during detection or use, so that the back of the circuit board needs to be cleaned to ensure the electrical performance index of the circuit board, and finally the stability, reliability and service life of the whole electronic product are ensured, and therefore, the cleaning of a circuit board assembly part is very important and high-tech.

The existing ultrasonic cleaning machine is easy to generate vibration, damages components on the front surface of a circuit board and cannot be connected with a production line conveying platform to improve the production efficiency, so that on the existing high-efficiency production line, manual operation is adopted for cleaning the circuit board, an operator takes the circuit board with one hand and takes a brush with the other hand to dip wash residues on the back of the circuit board, the components on the circuit board can be damaged due to nonstandard taking and placing of the components, the production efficiency generated by the production line is influenced, on the other hand, most of circuit board washing water is formed by mixing chlorinated solvent and other solvents, the speed of dissolving rosin and removing soldering flux is high, the cleaning machine has the characteristics of no residue after cleaning, volatility and no need of drying, but the odor is strong and stimulation, certain harm is caused to the body health of workers, and therefore, the cleaning machine which can be matched with the production line of the circuit board is necessary to be, the damage to the circuit board during cleaning is reduced, and meanwhile, manual operation is replaced, so that the working efficiency is improved, and the labor intensity is reduced.

Disclosure of Invention

The technical problems to be solved by the invention are as follows: in conclusion, aiming at the problems that the existing circuit board cleaning operation has an integrated mechanical replacement, but cannot be inserted into a production line for use, the production efficiency is affected, and the manual operation cannot be better replaced, the circuit board cleaning device which can be matched with a production line conveying table, integrates cleaning and conveying into a whole, has high efficiency and is used on the production line is provided to better replace the manual operation.

In order to solve the technical problems, the invention adopts the following technical scheme:

a circuit board cleaning device used on a production line; the device comprises a device body, a left side plate, a right side plate, a width adjusting hand wheel, a driving belt wheel, a first threaded rod, a second threaded rod, a width adjusting hand wheel, a driving belt wheel and a driving belt wheel, wherein the bottom of the device body is a horizontally placed bottom plate, the positions of the upper surface of the bottom plate and the two sides of the bottom plate are respectively and fixedly connected with the left side plate and the right side plate, the two mounting plates are symmetrically distributed in the middle of the left side plate and the right side plate, the positions of the two side plates and the two ends of the side plates are respectively and rotatably connected with the first threaded rod and the second threaded rod, so that the threaded rods can freely rotate on the side plates; the second threaded rod is erected between the left side plate and the right side plate, and a driven belt pulley is fixedly connected to the position, on the same side as the driving belt pulley on the first threaded rod, on the second threaded rod; the driving belt pulley is in transmission connection with the driven belt pulley through a belt, the two mounting plates are inserted on the two threaded rods, and threaded holes matched with the threaded rods are formed in the inner walls of holes in the two mounting plates, through which the two threaded rods penetrate; two ends of each mounting plate are respectively provided with a mounting groove, a driving chain wheel is arranged in the mounting groove at the left end, a driven chain wheel is arranged in the mounting groove at the right end, the hole of the mounting groove is larger than the thickness of the driving chain wheel and the driven chain wheel, the left ends of the left side plate and the right side plate and the two side plates are rotatably connected with a driving rotating shaft, the driving rotating shaft passes through a shaft hole at the center of the driving chain wheel, one end of the driving rotating shaft is connected with the side wall of the right side plate through rotation, the other end of the driving rotating shaft penetrates through, the outer side of the left side plate is connected with an output shaft of a motor B fixedly connected on the outer side wall of the left side plate, a driven rotating shaft is rotatably connected between the left side plate and the right side plate and positioned at the right ends of the two side plates, the driven rotating shaft penetrates through the two driven chain wheels and is rotatably connected between the two side plates, and each mounting plate is provided with a transmission chain which is wound on the outer side; the bottom plate is provided with a sliding base, the bottom of the sliding base is fixedly connected with a sliding block, a matched sliding groove is formed in the position, corresponding to the sliding block, of the bottom plate, two adjustable supporting rods are fixedly connected to the upper surface of the sliding base, a brush roller is arranged at the upper end between the two adjustable supporting rods, a motor A is fixedly connected to one end of a mandrel of the brush roller, and a water containing box is arranged right below the brush roller; the other end fixed connection of dabber is in the bearing frame at adjustable support rod top, and the right side position fixedly connected with hydraulic stem of sliding bottom plate on the bottom plate, the terminal fixedly connected with drive plate of hydraulic stem, the drive plate is connected with sliding base, the bottom fixedly connected with hydraulic pump of bottom plate.

And the spiral directions of the threads at the two ends of the first threaded rod and the second threaded rod are opposite.

The tooth parts of the outer circular ends of the driving chain wheel and the driven chain wheel extend out of the circular arc corner ends of the two ends of the mounting plate and are meshed in the chain grooves of the conveying chains at corresponding positions.

And a side baffle is arranged on one side of each mounting plate, which faces the side plate.

Trapezoidal spout can be chooseed for use to the spout, and the slider that corresponds in the trapezoidal spout is trapezoidal slider.

The bottom of the bottom plate is fixedly connected with a control plate.

The side faces of the two mounting plates face to the middle sliding base, and a distance sensor is arranged in the direction of the side faces.

The plate washing water is filled in the water containing box, and the water containing box can contain the lower brush roller.

Compared with other methods, the method has the beneficial technical effects that:

in the device, two conveying chains are respectively sleeved on two parallel mounting plates and are driven to rotate by a driving chain wheel and a driven chain wheel which are rotatably connected with the two ends of the mounting plates, and different circuit boards are lifted and conveyed by adjusting the distance between the two conveying chains.

Drawings

FIG. 1 is a schematic longitudinal sectional view of the apparatus of the present invention;

FIG. 2 is a left side view of the apparatus of the present invention of FIG. 1;

FIG. 3 is a schematic top view of the apparatus of the present invention of FIG. 1;

1. a left side plate; 2. a right side plate; 3. a base plate; 301. a chute; 4. mounting a plate; 401. mounting grooves; 5. a drive sprocket; 6. a driven sprocket; 7. a conveyor chain; 8. driving the rotating shaft; 9. a driven rotating shaft; 10. a first threaded rod; 11. a second threaded rod; 12. a brush roller; 13. a mandrel; 14. a water containing box; 15. a motor A; 16. a bearing seat; 17. a motor B; 18. a sliding base; 19. an adjustable support rod; 20. a slider; 21. a hydraulic lever; 22. a drive plate; 23. side baffles; 24. a control panel; 25. a hydraulic pump; 26. a distance sensor; 27. a width adjustment hand wheel; 28. a drive pulley; 29. a driven pulley; 30. a belt.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. The words "upper", "lower", "left" and "right" when used herein are merely intended to designate corresponding upper, lower, left and right directions in the drawings, and do not limit the structure thereof.

A circuit board cleaning device for an assembly line as shown in fig. 1 to 3; the bottom of the device is a bottom plate 3 which is horizontally arranged, as shown in fig. 2, a left side plate 1 and a right side plate 2 are respectively and fixedly connected to the upper part and two sides of the bottom plate 3 and used for installing mechanisms between the side plates; two mounting plates 4 which are symmetrically distributed are arranged in the middle of the two side plates, a first threaded rod 10 and a second threaded rod 11 are respectively connected between the two side plates in a rotating manner and positioned at the two ends of the side plates in a rotating manner, the first threaded rod 10 penetrates through and extends to the tail end of the outer side position of the right side plate 2, as shown in fig. 3, the other end of the first threaded rod 10 penetrates through the left side plate 1 and extends to the tail end of the outer side position of the left side plate 1, a driving belt pulley 28 is fixedly connected to the tail end of the outer side position of the left side plate 1, the second threaded rod 11 is also erected between the two side plates and is fixedly connected with a driven belt pulley 29 at one end of the same side with the driving belt pulley 28 on the first threaded rod 10, the driving belt pulley 28 is in transmission connection with the driven belt pulley 29, as shown in fig. 1 and 3, two ends of each mounting plate 4 are respectively provided with a mounting groove 401, a driving sprocket 8 is arranged in the mounting groove 401 at the left end, a driven sprocket 6 is arranged in the mounting groove 401 at the right end, a driving rotating shaft 8 is rotatably connected between the two side plates and at the left end thereof, the driving rotating shaft 8 passes through a shaft hole at the center of the two driving sprockets 5 and has one end rotatably connected to the side wall of the right side plate 2, the other end penetrates through the left side plate 1 and extends to the outer side of the left side plate 1 to be connected with an output shaft of a motor B17 fixedly connected to the outer side wall of the left side plate 1, a driven rotating shaft 9 is rotatably connected between the two side plates and at the right end thereof, the driven rotating shaft 9 passes through the two driven sprockets 6 and is rotatably connected between the two side plates, each mounting plate 4 is provided with a transmission chain 7, the bottom of the sliding base 18 is fixedly connected with a sliding block 20, a sliding groove 301 matched with the sliding block 20 is formed in the position, corresponding to the sliding block 20, of the bottom plate 3, two adjustable supporting rods 19 are fixedly connected to the upper surface of the sliding base 18, a brush roller 12 is arranged between the two adjustable supporting rods 19 and located at the upper end of the two adjustable supporting rods, a motor A15 fixedly connected to one end of a mandrel 13 of the brush roller 12 is arranged, a water containing box 14 is arranged under the brush roller 12, the other end of the mandrel 15 is inserted into a bearing seat 16 fixedly connected to the adjustable supporting rods 19, a hydraulic rod 21 is fixedly connected to the position, located on the right side of the sliding bottom plate 18, of the bottom plate 3, a driving plate 22 is fixedly connected to the tail end of the hydraulic rod 21, the driving plate 22 is connected with the sliding.

The spiral directions of the threads on the two ends of the first threaded rod 10 and the second threaded rod 11 are opposite, so that when the threaded rods rotate, the two mounting plates 4 can move towards two sides or the middle at the same time instead of moving towards the same direction, and the function of adjusting the distance is achieved.

Tooth parts of the outer circular ends of the driving chain wheel 5 and the driven chain wheel 6 extend out of the circular arc corner ends of the two ends of the mounting plate 4 and are meshed with chain grooves of the conveying chains 7 at corresponding positions, so that the driving chain wheel 5 can rotate to be meshed with the conveying chains 7 to drive the corresponding conveying chains 7 to operate.

Wherein, the side baffle 23 is arranged on one side of each mounting plate 4 facing the side plate to prevent the conveying chain 7 from deviating.

The sliding groove 301 can be a trapezoidal sliding groove, and the corresponding sliding block 20 is a trapezoidal sliding block, so that the up-and-down degree of freedom of the sliding base 18 can be limited, and the sliding base can only move horizontally along the sliding groove 301.

Wherein, the bottom of the bottom plate 3 is also fixedly connected with a control plate 24.

Wherein, the side of the mounting plate 4 and the direction of the middle sliding base 18 are respectively provided with a distance sensor 26 for detecting the position of the sliding base 18 and realizing the reciprocating movement of the sliding base 18.

Wherein, the water containing box 14 is filled with board washing water, so that the brush roller 12 contacts and picks up the board washing water in the water containing box 14 when rotating, so as to be used for washing the circuit board.

The specific operation flow of the device of the invention is as follows:

before use, the width adjusting hand wheel 27 is manually rotated to drive the two threaded rods to simultaneously rotate, so that the two mounting plates 4 are driven to simultaneously move towards the middle or two sides, the distance between the conveying chains 7 on the left and right mounting plates 4 is adjusted, a circuit board can be erected between the two conveying chains 7, the height of the circuit board can be adjusted by manually stretching or pressing the adjustable supporting rod 19, the brush roller 12 is contacted with the circuit board above, the left end and the right end of the device are aligned with a conveying table of a production line, a device switch is started, a motor B17 operates, two driving chain wheels 5 at the left end of the mounting plates 4 are driven to simultaneously rotate by the driving rotating shaft 8, the conveying chains 7 which are in contact engagement are driven to operate by external teeth, the conveying chains 7 clockwise move to drive the circuit board flowing in the left end to move rightwards, and meanwhile, the hydraulic rod 21 is driven to operate by hydraulic, the sliding base 18 is driven to move from left to right or from right to left, when the sliding base 18 moves and is close to the distance sensor 26 on one side, the distance sensor 26 transmits an electric signal to the control board 24, the control board 24 analyzes and processes the signal and outputs a corresponding control signal to control the hydraulic pump 25 to supply oil reversely, so that the driving rod of the hydraulic rod 21 moves reversely, the sliding base 18 is driven to move back, when the sliding base 18 moves and is close to the distance sensor 26 on the other side, the steps are repeated, the reciprocating motion of the sliding base 18 is realized, the brush roller 12 above is driven to move back and forth, the back surfaces of the circuit boards passing in sequence are washed, the circuit boards move to the rightmost end downwards, a flow line process area moves along with the continuous operation of the transmission chain 7, the circuit boards are circularly reciprocated, and the passing circuit boards are.

The present invention has been further described with reference to specific embodiments, but it should be understood that the detailed description should not be construed as limiting the spirit and scope of the present invention, and various modifications made to the above-described embodiments by those of ordinary skill in the art after reading this specification are within the scope of the present invention.

Claims

1. A circuit board cleaning and conveying device used on an assembly line is characterized in that the bottom of the device is a horizontally placed bottom plate (3), a left side plate (1) and a right side plate (2) are fixedly connected to the positions of the two sides of the bottom plate (3) respectively, two mounting plates (4) which are symmetrically distributed are arranged in the middle of the left side plate (1) and the right side plate (2), a first threaded rod (10) and a second threaded rod (11) are rotatably connected to the positions between the two side plates and at the two ends of the side plates respectively, so that the threaded rods can freely rotate on the side plates, one end of the first threaded rod (10) penetrates through the mounting plates (4), a width adjusting hand wheel (27) is fixedly connected to the position extending to the outer side of the right side plate (2), and the other end of the first threaded rod (10) penetrates through the left side plate (1) and extends to the tail end of the position of the, a driving belt pulley (28) is fixedly connected to one end of the outer side of the left side plate (1), the second threaded rod (11) is erected between the left side plate (1) and the right side plate (2), a driven belt pulley (29) is fixedly connected to the position, located on the same side of the second threaded rod (11) and the driving belt pulley (28) on the first threaded rod (10), and the driving belt pulley (28) is in transmission connection with the driven belt pulley (29) through a belt (30); the inner walls of the holes for the two threaded rods to penetrate through on the two mounting plates (4) are provided with threaded holes matched with the threaded rods; the two ends of each mounting plate (4) are respectively provided with a mounting groove (401), the mounting groove (401) at the left end is internally provided with a driving chain wheel (5), the mounting groove (401) at the right end is internally provided with a driven chain wheel (6), the hole of the mounting groove (401) is larger than the thickness of the driving chain wheel (5) and the driven chain wheel (6), the left end between the left side plate (1) and the right side plate (2) and positioned on the two side plates is rotatably connected with a driving rotating shaft (8), the driving rotating shaft (8) passes through the shaft hole at the center of the driving chain wheel (5), one end of the driving rotating shaft is rotatably connected with the side wall of the right side plate (2), the other end of the driving rotating shaft penetrates through the left side plate (1) and extends to the outer side of the left side plate (1), the outer side of the driving rotating shaft is connected with the output shaft of a motor B (17) fixedly connected on the outer side wall of the left side plate (1, the automatic water-saving device is characterized in that the driven rotating shaft (9) penetrates through two driven chain wheels (6) and is rotatably connected between two side plates, a conveying chain (7) which surrounds the outside is arranged on each mounting plate (4), a sliding base (18) is arranged on the bottom plate (3), a sliding block (20) is fixedly connected to the bottom of the sliding base (18), a matched sliding groove (301) is arranged at the position, corresponding to the sliding block (20), on the bottom plate (3), two adjustable supporting rods (19) are fixedly connected to the upper surface of the sliding base (18), a brush roller (12) is arranged between the two adjustable supporting rods (19) and at the upper end of the two adjustable supporting rods, a motor A (15) is fixedly connected to one end of a mandrel (13) of the brush roller (12), a water containing box (14) is arranged under the brush roller (12), and the other end of the mandrel (13) is fixedly connected to a bearing, the hydraulic control device is characterized in that a hydraulic rod (21) is fixedly connected to the bottom plate (3) and is located at the right side of the sliding bottom plate (18), a driving plate (22) is fixedly connected to the tail end of the hydraulic rod (21), the driving plate (22) is connected with the sliding base (18), and a hydraulic pump (25) is fixedly connected to the bottom of the bottom plate (3).

2. The circuit board cleaning and conveying device for the assembly line of claim 1, wherein the screw threads on the first threaded rod (10) and the second threaded rod (11) at two ends are opposite in spiral direction.

3. The circuit board cleaning and conveying device for the assembly line of claim 1, wherein the teeth of the outer circular ends of the driving sprocket (5) and the driven sprocket (6) extend from the circular corner ends of the two ends of the mounting plate (4) and are engaged in the chain grooves of the conveying chain (7) at the corresponding positions.

4. A cleaning and conveying device for circuit boards on a production line as claimed in claim 1, wherein each mounting plate (4) is provided with a side baffle (23) at a side facing the side plate.

5. The circuit board cleaning and conveying device for the assembly line of claim 1, wherein the sliding groove (301) can be a trapezoidal sliding groove, and the corresponding sliding block (20) in the trapezoidal sliding groove can also be a trapezoidal sliding block.

6. The circuit board cleaning and conveying device for the assembly line of claim 1, wherein a control board (24) is fixedly connected to the bottom of the bottom plate (3).

7. A cleaning and conveying device for circuit boards on a production line according to claim 1, characterized in that the two mounting plates (4) are each provided with a distance sensor (26) on the side and in the direction of the intermediate slide base (18).

8. The circuit board cleaning and conveying device for the assembly line of claim 1, wherein the water containing box (14) contains board cleaning water, and the water containing box (14) is sized to accommodate the lower brush roller (12).