Circuit board surface liquid medicine suction and flow guide device

Abstract

The utility model discloses a circuit board surface liquid medicine suction flow guide device, which is characterized in that a flow guide plate is provided with a flow guide groove arranged on a circuit board surface and a plurality of interfaces communicated with the flow guide groove, and the number of vacuum generators is equal to that of the interfaces; each vacuum generator is correspondingly connected with each connector through a first guide pipe to form a liquid medicine channel, each liquid medicine channel is provided with a control valve, and the pump is communicated with a second guide pipe connected with each vacuum generator. According to the utility model, the flow guide plate is segmented through the plurality of interfaces, each part is independently controlled by the control valve to achieve the effect of regional attraction, and the partition plates are matched to correspondingly communicate with the partitions of the flow guide grooves, so that the acting surfaces of the flow guide grooves can adapt to circuit board surfaces with different widths, and the attraction force and the attraction effect are ensured; and the pool effect of circuit board surfaces with different widths is effectively eliminated.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board surface liquid medicine processing devices, in particular to a circuit board surface liquid medicine suction and diversion device. Background Art

[0002] During the preparation and molding process of circuit boards, chemicals need to be used for treatment in multiple steps, such as electroplating, etching, developing and immersion gold processing. After the above steps are completed, the chemicals will still remain on the surface of the circuit board and need to be removed to ensure the normal progress of the next step.

[0003] In the prior art, there is a printed circuit board liquid cleaning device with application number 202020231840.X, which discloses that the circuit board is erected and then rinsed and dried using a rotating spray cleaning mechanism and a blower mechanism. This process will cause the liquid to be diluted and cannot be effectively recycled, and its structure is relatively complex, and it is not possible to simply recycle the liquid on the circuit board surface; moreover, for circuit boards of different widths, if vacuum suction technology is used to attract the liquid on the circuit board surface, when the circuit board surface becomes narrower, the wider suction device has a wider active surface, so for the narrowed area that needs to be acted on, air leakage will occur on both sides, resulting in a relatively poor suction effect. Utility Model Content

[0004] The purpose of the utility model is to provide a circuit board surface liquid medicine suction and diversion device, which divides the guide plate through multiple interfaces, and each part is individually controlled by a control valve to achieve the effect of regional suction, and cooperates with the partition to divide the guide groove into sections and respectively communicate with them, so that the active surface of the guide groove can adapt to circuit board surfaces of different widths, ensuring attraction and suction effect, and effectively eliminating the pool effect of circuit board surfaces of different widths.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a circuit board surface liquid medicine suction and diversion device, comprising:

[0006] The guide plate is provided with a guide groove for being placed on the surface of the circuit board, and a plurality of interfaces connected to the guide groove.

[0007] The number of vacuum generators is equal to the number of the interfaces. Each vacuum generator is connected to each interface through a first conduit to form a liquid medicine channel. Each liquid medicine channel is provided with a control valve.

[0008] A pump is connected to the second conduit connected to each of the vacuum generators.

[0009] As a further optimization, the guide plate includes a main body and an auxiliary plate. The main body is provided with a slot. The interface is formed on the main body and is connected to the slot. The auxiliary plate is formed with a guide groove running through its body, and the auxiliary plate is inserted into the slot so that the guide groove is connected to the interface.

[0010] As a further optimization, the end of the guide groove is in a closed shape, and a greater attraction force is ensured by reducing the effective surface of the guide groove, thereby having an excellent adsorption effect.

[0011] As a further optimization, at least one partition is provided between a pair of adjacent interfaces in the guide groove.

[0012] As a further optimization, the length of the partition is less than or equal to the depth of the guide groove, which can achieve complete separation of the guide groove.

[0013] As a further optimization, the number of the interfaces is three to five, and they are evenly spaced and distributed on the guide plate.

[0014] As a further optimization, the first conduit includes a front tube body and a rear tube body, both ends of the front tube body are respectively connected to the interface and the control valve, and both ends of the rear tube body are respectively connected to the control valve and the vacuum generator.

[0015] As a further optimization, the first conduit and / or the second conduit are made of PTFE material, which can have good corrosion resistance.

[0016] As a further optimization, the control valves are pneumatic valves, and each pneumatic valve independently controls the opening or closing of a liquid medicine channel.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The guide plate is divided through multiple interfaces, and each part is controlled by a control valve separately, so as to achieve the effect of regional attraction. The active surface of the guide groove can be adapted to circuit boards of different widths by switching the air valve, ensuring the attraction and attraction effect, and effectively eliminating the pool effect of circuit boards of different widths;

[0019] 2. Multiple partitions are provided in the guide groove to divide the guide groove into sections and connect them to multiple interfaces accordingly, which can ensure that the attraction generated by the negative pressure is only located in the guide groove area where the control valve is opened, thereby more effectively ensuring the attraction and adsorption effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural diagram of the utility model.

[0021] Figure 2 This is a structural diagram of the guide plate of the present utility model.

[0022] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0023] Figure 4 This is a schematic diagram of the assembly of the guide plate of the present invention. DETAILED DESCRIPTION

[0024] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0025] like Figures 1 to 2 As shown, a circuit board surface liquid medicine suction and diversion device includes a guide plate 10, a vacuum generator 30 and a pump 42. The guide plate 10 is provided with a guide groove 102 for being placed on the circuit board surface, and a plurality of interfaces 101 connected to the guide groove 102. Preferably, four interfaces 101 can be set at equal intervals on the guide plate 10. The number of vacuum generators 30 is equal to the number of interfaces 101, and is also set to have four. Each vacuum generator 30 is connected to each interface 101 through a first conduit 21 to form a liquid medicine channel 20. Each liquid medicine channel 20 is provided with a control valve 22, and the control valve 22 can be a pneumatic valve. Each vacuum generator 30 is connected to a second conduit 41 at one end away from the first conduit 21 (that is, the end of each liquid medicine channel 20). The four second conduits 41 are all connected to the pump 42.

[0026] In the present invention, when it is necessary to process the liquid medicine on the wider circuit board surface, the guide groove 102 on the guide plate 10 acts on the liquid medicine on the circuit board surface, and the control valve 22 on each liquid medicine channel 20 is opened, then the four liquid medicine channels 20 and the four vacuum generators 30 are connected one by one, and are connected to the pump 42, so that the vacuum generator 30 can generate a negative pressure through the Venturi effect to extract the liquid medicine near the guide plate 10 (the guide groove 102) through the liquid medicine channel 20, the vacuum generator 30, the second conduit 41 and the pump 42, thereby completing the suction and discharge of the liquid medicine on the wider circuit board surface; when it is necessary to process the narrower When the liquid medicine on the circuit board surface is sucked out, the control valves 22 on one or more liquid medicine channels 20 are closed accordingly. For example, the control valves 22 on the liquid medicine channels 20 on both sides are closed, and only the two control valves 22 in the middle position are opened. Then, a narrower action surface can be formed on the guide groove 102 on the guide plate 20 so that the action surface only properly covers the narrow circuit board surface. The liquid medicine is sucked and discharged through the negative pressure of the vacuum generator and the action of the pump. This design can reduce (narrow) the action surface of the guide groove 102, avoiding the dispersion of the negative pressure effect caused by the wider action surface during suction, which affects the attraction and suction effect at the middle position. The suction and diversion device of the present invention can be positioned on the circuit board surface, and can also be manually or mechanically moved horizontally on the circuit board surface to act on a larger range.

[0027] The utility model divides the guide plate through multiple interfaces, and each part is controlled by a control valve separately, so as to achieve the effect of regional attraction. The active surface of the guide groove can be adapted to circuit boards of different widths by switching the air valve, thereby ensuring the attraction and attraction effect, and effectively eliminating the pool effect of boards of different widths.

[0028] Combine Figure 3 and 4 As shown, the structure of the guide plate 10 includes a main body 11 and an auxiliary plate 12. The main body 11 is provided with a slot 110, and the interface 101 is formed on the main body 11 and is connected to the slot 110. The auxiliary plate 12 is formed with a guide groove 102 running through its body, and the auxiliary plate 12 is inserted into the slot 110 so that the guide groove 102 is connected to the interface 101. By inserting the auxiliary plate 12 and the main body 11, the molding of the guide plate 10 can be facilitated, and the molding of the guide groove 102 on the auxiliary plate 12 can be facilitated; on the basis of insertion, the two can also be locked by means of bolts 14 passing through the auxiliary plate 12 and extending into the main body 11 to ensure the structural stability of the formed guide plate 10.

[0029] The end of the guide groove 102 is in a closed shape. In one embodiment, a horizontal plate 1022 can be set at the end of the guide groove 102, which runs through the end of the guide groove 102 in the length direction, so that the original wide mouth can be formed into a narrow mouth. The narrow mouth formed reduces the active surface and can ensure the attraction and adsorption effects at the active surface.

[0030] Furthermore, at least one partition 1021 is provided between a pair of adjacent interfaces 101 in the guide groove 102. On the basis that the four interfaces 101 are located at different positions to achieve the basic partitioning effect of the guide groove 102, the guide groove 102 can be further thoroughly partitioned with the help of the partition 1021, that is, each interface 101 is only connected to the corresponding area on the guide groove 102, and the adjacent guide grooves 102 are relatively independent and not connected, which can ensure that the attraction generated by the negative pressure is only located in the guide groove area where the control valve 22 is opened, thereby more effectively ensuring the attraction and adsorption effects.

[0031] Preferably, the length of the partition 1021 is equal to the depth of the guide groove 102 , and the guide groove 102 can be completely separated.

[0032] The first conduit 21 includes a front tube body 211 and a rear tube body 212. The two ends of the front tube body 211 are respectively connected to the interface 101 and the control valve 22, and the two ends of the rear tube body 212 are respectively connected to the control valve 22 and the vacuum generator 30. Configuring the first conduit 21 as two relatively independent tube bodies can facilitate the formation of the liquid medicine channel 20.

[0033] Preferably, the first conduit 21 and the second conduit 41 are made of PTFE material, which has good corrosion resistance.

[0034] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. A circuit board surface liquid medicine suction and diversion device, characterized in that: include: The guide plate is provided with a guide groove for being placed on the surface of the circuit board, and a plurality of interfaces connected to the guide groove. The number of vacuum generators is equal to the number of the interfaces. Each vacuum generator is connected to each interface through a first conduit to form a liquid medicine channel. Each liquid medicine channel is provided with a control valve. A pump is connected to the second conduit connected to each of the vacuum generators.

2. The circuit board surface liquid medicine suction and diversion device according to claim 1, characterized in that: The guide plate includes a main body and an auxiliary plate. The main body is provided with a slot. The interface is formed on the main body and is connected to the slot. The auxiliary plate is formed with a guide groove running through its body, and the auxiliary plate is inserted into the slot so that the guide groove is connected to the interface.

3. The circuit board surface liquid medicine suction and diversion device according to claim 1 or 2, characterized in that: The end of the guide groove is in a closed shape.

4. The circuit board surface liquid medicine suction and diversion device according to claim 3, characterized in that: At least one partition is provided between a pair of adjacent interfaces in the guide groove.

5. The circuit board surface liquid medicine suction and diversion device according to claim 4, characterized in that: The length of the partition is less than or equal to the depth of the guide groove.

6. The circuit board surface liquid medicine suction and diversion device according to claim 1, characterized in that: The number of the interfaces is three to five, and they are evenly spaced and distributed on the guide plate.

7. The circuit board surface liquid medicine suction and diversion device according to claim 1, characterized in that: The first conduit includes a front tube body and a rear tube body, two ends of the front tube body are respectively connected to the interface and the control valve, and two ends of the rear tube body are respectively connected to the control valve and the vacuum generator.

8. The circuit board surface liquid medicine suction and diversion device according to claim 1 or 7, characterized in that: The first conduit and / or the second conduit are made of PTFE.

9. The circuit board surface liquid medicine suction and diversion device according to claim 1, characterized in that: The control valve is a pneumatic valve.

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