Cleaning device for circuit board processing

Abstract

The utility model relates to a cleaning device for circuit board processing, which comprises a box body and two groups of conveying belts penetrating through an inlet and an outlet in the side wall of the box body, one ends of the two groups of conveying belts are positioned in the box body, and a plurality of groups of driving rollers and cleaning mechanisms are arranged in the box body between the two groups of conveying belts in parallel; a drying mechanism is also arranged in the box body at the upstream part of the transmission roller; the drying mechanism comprises shells which are located on the upper side and the lower side of the conveying belt and provided with heating pipes, and the upper shell is fixed in the box body in a suspended mode through an electric push rod; the cleaning mechanism comprises an upper group of rollers and a lower group of rollers, bristles are radially arranged on the outer walls of the rollers, rotating shafts extending to the outer side of the box body are further arranged at the two ends of the rollers, gears are arranged on the rotating shafts on one side of the box body, the upper group of gears and the lower group of gears are meshed, and a motor connected with one group of rotating shafts is arranged on the other side of the box body. The device is simple in structure and convenient to use.

Description

Technical Field

[0001] The invention relates to the field of circuit board processing, and in particular to a cleaning device for circuit board processing. Background Art

[0002] Circuit boards can be called printed circuit boards or printed circuit boards. Flexible circuit boards are made of polyimide or polyester film as a substrate. They are highly reliable and extremely flexible printed circuit boards with high wiring density, light weight, thin thickness, and good bending properties. Therefore, hard-soft boards are flexible circuit boards and rigid circuit boards. During the production process of circuit boards, dust, flocs and other debris are easily attached to their outer surfaces, and dust removal devices are required to perform a series of dust removal operations on the circuit boards.

[0003] Specifically, a dust removal device for circuit board processing with patent number CN218251684U has the following defects when in use: it can only clean one end surface of the circuit board, so it needs to be turned over after the top surface is cleaned, and then placed on the conveyor belt upstream of the box body, and then transferred to the box body for cleaning of the other end surface, thereby affecting its cleaning efficiency and increasing the workload. Summary of the invention

[0004] The purpose of the present invention is to provide a cleaning device for circuit board processing.

[0005] The technical problem of the present invention is mainly solved by the following technical solutions:

[0006] A cleaning device for processing a circuit board comprises a box body and a conveyor belt passing through an inlet and outlet on a side wall of the box body:

[0007] There are two groups of conveyor belts, one end of each of which is located in a box, and a plurality of groups of transmission rollers and cleaning mechanisms are arranged in parallel in the box between the two groups of conveyor belts, and a drying mechanism is also arranged in the box upstream of the transmission rollers;

[0008] The drying mechanism comprises a shell with heating tubes installed on the upper and lower sides of the conveyor belt, wherein the upper shell is suspended and fixed in the box body by an electric push rod;

[0009] The cleaning mechanism comprises two groups of upper and lower rollers, wherein bristles are radially arranged on the outer wall of the rollers, and both ends of the rollers are also provided with rotating shafts extending to the outside of the box body, and gears are arranged on the rotating shafts on one side of the box body, wherein the upper and lower groups of gears are meshed, and a motor connected to one of the groups of rotating shafts is arranged on the other side of the box body;

[0010] Dust collecting hoods are arranged on both upper and lower sides of the box body downstream of the cleaning mechanism, wherein the dust collecting hood is connected to the exhaust fan through a pipeline.

[0011] Preferably, the lower shell is arranged between the downstream line and the upstream line in the corresponding conveyor belt, wherein the opening of the lower shell is arranged upward, and the opening of the upper shell is arranged downward.

[0012] Preferably, the top end of the driving roller is flush with the top end surface of the downstream line in the conveyor belt, wherein the roller is located between two adjacent groups of driving rollers.

[0013] Preferably, baffles are provided on both sides of the box body outside the conveyor belt, wherein the baffle is located between the two groups of conveyor belts, and screws are provided between the baffles and the corresponding inner walls of the box body, wherein the corresponding two groups of screws are connected by screw tubes.

[0014] Preferably, the side wall of the drum is evenly provided with air outlet holes connected with its internal cavity, wherein an air inlet channel connected with the internal cavity of the drum is provided at the center of the rotating shaft on which the gear is installed, and an air inlet pipe is provided in the air inlet channel, and the air inlet pipe is fixed to the side wall of the box through a bracket.

[0015] Preferably, the circles formed by the bristles on the roller are all tangent to the straight lines formed by the top ends of the multiple groups of driving rollers.

[0016] The beneficial effects of the present invention are as follows: the heat generated by the heating tube in the drying mechanism of the present invention can quickly heat and dry the end surface of the circuit board, thereby preventing water stains on the end surface of the circuit board from affecting subsequent cleaning work, and heating and drying impurities that may adhere to the circuit board, so as to facilitate separation of the impurities from the end surface of the circuit board, making it easy to scrape them off subsequently. When the circuit board flows out from the left conveyor belt and flows to the drive roller to slide, it will slide between the two groups of rollers. At this time, the motor works to drive the bristles to rotate through the rollers, and the bristles on the upper and lower groups of rollers simultaneously clean the upper and lower end surfaces of the circuit board, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention;

[0018] Figure 2 yes Figure 1 A--Sectional view in A direction;

[0019] Figure 3 It is a partial cross-sectional view of the drum in the present invention.

[0020] In the figure: 1, box body, 2, conveyor belt, 3, transmission roller, 4, cleaning mechanism, 41, roller, 42, bristles, 43, rotating shaft, 44, gear, 45, motor, 5, drying mechanism, 51, shell, 52, heating tube, 53, electric push rod, 6, dust hood, 7, baffle, 8, screw, 9, screw tube, 10, air intake channel, 11, air intake pipe, 12, bracket. DETAILED DESCRIPTION

[0021] The technical solution of the present invention is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0022] A cleaning device for circuit board processing includes a box body 1 and a conveyor belt 2 passing through an inlet and outlet on a side wall of the box body 1:

[0023] There are two groups of conveyor belts 2, one end of each of the two groups of conveyor belts 2 is located in the box 1, and multiple groups of transmission rollers 3 and cleaning mechanisms 4 are arranged in parallel in the box 1 between the two groups of conveyor belts 2, and a drying mechanism 5 is also arranged in the box 1 upstream of the transmission rollers 3;

[0024] The drying mechanism 5 includes a shell 51 with heating tubes 52 installed on the upper and lower sides of the conveyor belt 2, wherein the upper shell 51 is suspended and fixed in the box body 1 through an electric push rod 53, and the lower shell 51 is arranged between the downstream line and the upstream line of the corresponding conveyor belt 2, and the opening of the lower shell 51 is arranged upward, and the opening of the upper shell 51 is arranged downward;

[0025] The cleaning mechanism 4 includes two groups of upper and lower rollers 41, wherein bristles 42 are radially arranged on the outer wall of the rollers 41, and both ends of the rollers 41 are also provided with shafts 43 extending to the outside of the box body 1, and a gear 44 is arranged on the shaft 43 on one side of the box body 1, wherein the upper and lower groups of gears 44 are meshed, and a motor 45 connected to one of the groups of shafts 43 is arranged on the other side of the box body 1;

[0026] Dust collecting hoods 6 are provided on both upper and lower sides of the box body 1 downstream of the cleaning mechanism 4, wherein the dust collecting hood 6 is connected to the exhaust fan through a pipeline.

[0027] In this embodiment, the top end of the driving roller 3 is flush with the top end surface of the downstream line of the conveyor belt 2 , wherein the roller 41 is located between two adjacent groups of driving rollers 3 .

[0028] like Figure 2 As shown, baffles 7 are arranged on both sides of the box body 1 outside the conveyor belt 3, wherein the baffle 7 is located between the two groups of conveyor belts 2, and screws 8 are arranged between the baffle 7 and the corresponding inner wall of the box body 1, wherein the two corresponding groups of screws 8 are connected by screw tubes 9. The baffle 7 plays a limiting role on the circuit board flowing over the driving roller 3, preventing it from flowing to the outside of the conveyor belt 2 and being blocked, so that it cannot flow well into the conveyor belt 2 at the downstream and be transmitted to the next process.

[0029] like Figure 3As shown, air outlets connected to the inner cavity of the drum 41 are evenly arranged on the side wall of the drum 41, wherein the center of the rotating shaft 43 on which the gear 44 is installed is provided with an air inlet channel 10 connected to the inner cavity of the drum 41, and an air inlet pipe 11 is arranged in the air inlet channel 10, and the air inlet pipe 11 is fixed to the side wall of the box body 1 through a bracket 12. When the end face of the circuit board is cleaned by the rotating drum 41 and the bristles 42, the exhaust fan draws the external air into the air inlet pipe 11 and enters the inner cavity of the drum 41 through the air inlet channel 10, and then sprays out from a number of air outlets, and then the end face of the circuit board is cleaned by strong airflow, so that the end face of the circuit board is cleaned by wind blowing and brushing by the bristles 42, thereby improving its cleaning efficiency and effect. When the drum 41 drives the rotating shaft 43 to rotate, it will drive the air inlet channel 10 to rotate on the air inlet pipe 11, and the bracket 12 fixes the air inlet pipe 11 to prevent it from rotating with the rotating shaft 43.

[0030] In this embodiment, the circles formed by the bristles 42 on the rollers 41 are all tangent to the straight lines formed by the top ends of the multiple groups of driving rollers 3. When the circuit board flows over the driving rollers 3, the bristles 42 on the upper and lower rollers 41 can contact the corresponding end faces of the circuit board, thereby cleaning it.

[0031] The working principle of the present invention is as follows: by placing the circuit board on the left conveyor belt 2 and inputting it into the box body 1, when it passes through the drying mechanism 5, the heat generated by the heating tube 52 can quickly heat and dry the end surface of the circuit board, preventing water stains on the end surface of the circuit board from affecting the subsequent cleaning work, and heating and drying the impurities that may adhere to the circuit board, so as to facilitate the separation of the impurities from the end surface of the circuit board, making it easy to scrape them off later, and according to the thickness of the circuit board, the electric push rod 53 can drive the upper housing 51 to move up and down, so that the distance between it and the conveyor belt 2 can facilitate the flow of the circuit board;

[0032] When the circuit board flows out from the left conveyor belt 2 and flows to the driving roller 3 to slide, it will slide between the two groups of rollers 41. At this time, the motor 45 drives the brush 42 to rotate through the roller 41, and the upper roller 41 drives the lower roller 41 to rotate together through the gear 44, thereby cleaning the upper and lower end surfaces of the circuit board. At the same time, the upper and lower groups of rotating rollers 41 can also drive the circuit board to a certain extent through the brush 42. At the same time, the circuit board at the upstream will push the circuit board at the downstream to continue to move downward on the driving roller 3 to the conveyor belt 2 at the downstream;

[0033] In the above process, when the end surface of the circuit board is cleaned by the rotating roller 41 and the brush 42, the exhaust fan draws the external air into the air inlet pipe 11 and enters the internal cavity of the roller 41 through the air inlet channel 10, and then sprays out from a plurality of air outlets, thereby cleaning the end surface of the circuit board with a strong airflow, and the end surface of the circuit board is cleaned by the wind blowing and the brushing of the brush 42, thereby improving the cleaning efficiency and effect. When the roller 41 drives the rotating shaft 43 to rotate, it drives the air inlet channel 10 to rotate on the air inlet pipe 11, and the bracket 12 fixes the air inlet pipe 11 to prevent it from rotating together with the rotating shaft 43;

[0034] The dust or impurities obtained or raised by cleaning partially fall into the corresponding dust collecting hood 6, and the exhaust fan extracts the impurities or diffused dust through the dust collecting hood 6 to improve the environment.

[0035] The present invention is described in detail above, but the contents are only preferred embodiments of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of application of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A cleaning device for circuit board processing, comprising a box body and a conveyor belt passing through an inlet and outlet on a side wall of the box body, characterized in that: There are two groups of conveyor belts, one end of each of which is located in a box, and a plurality of groups of transmission rollers and cleaning mechanisms are arranged in parallel in the box between the two groups of conveyor belts, and a drying mechanism is also arranged in the box upstream of the transmission rollers; The drying mechanism comprises a shell with heating tubes installed on the upper and lower sides of the conveyor belt, wherein the upper shell is suspended and fixed in the box body by an electric push rod; The cleaning mechanism comprises two groups of upper and lower rollers, wherein bristles are radially arranged on the outer wall of the rollers, and both ends of the rollers are also provided with rotating shafts extending to the outside of the box body, and gears are arranged on the rotating shafts on one side of the box body, wherein the upper and lower groups of gears are meshed, and a motor connected to one of the groups of rotating shafts is arranged on the other side of the box body; Dust collecting hoods are arranged on both upper and lower sides of the box body downstream of the cleaning mechanism, wherein the dust collecting hood is connected to the exhaust fan through a pipeline.

2. A cleaning device for circuit board processing according to claim 1, characterized in that: The lower shell is arranged between the downstream line and the upstream line in the corresponding conveyor belt, wherein the opening of the lower shell is arranged upward, and the opening of the upper shell is arranged downward.

3. A cleaning device for circuit board processing according to claim 1, characterized in that: The top end of the driving roller is flush with the top end surface of the downstream line in the conveyor belt, wherein the roller is located between two adjacent groups of driving rollers.

4. A cleaning device for circuit board processing according to claim 1, characterized in that: Baffles are arranged on both sides of the box body outside the conveyor belt, wherein the baffle is located between the two groups of conveyor belts, and screws are arranged between the baffles and the corresponding inner walls of the box body, wherein the two corresponding groups of screws are connected by screw tubes.

5. A cleaning device for circuit board processing according to claim 1, characterized in that: The side wall of the drum is evenly provided with air outlet holes connected with its internal cavity, wherein the center of the rotating shaft on which the gear is installed is provided with an air inlet channel connected with the internal cavity of the drum, and an air inlet pipe is provided in the air inlet channel, and the air inlet pipe is fixed to the side wall of the box through a bracket.

6. A cleaning device for circuit board processing according to claim 1, characterized in that: The circles formed by the bristles on the roller are all tangent to the straight lines formed by the top ends of the multiple groups of transmission rollers.

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