PCB acid etching waste liquid circulation equipment

Abstract

The utility model discloses PCB (Printed Circuit Board) acid etching waste liquid circulation equipment, relates to the technical field of PCB acid etching waste liquid circulation, and solves the technical problem that a filter screen is blocked when filtering impurity solid particles. Comprising a circulating equipment box, a plurality of limiting grooves are formed in the circulating equipment box in the vertical direction, limiting plates are slidably connected into the limiting grooves, backflow grooves are formed in the circulating equipment box along the bottom perpendicular to the limiting plates, the backflow grooves do not communicate with the limiting grooves, and collecting boxes are fixedly connected to the side surfaces, away from the circulating equipment box, of the limiting plates; a plurality of flow guide holes are formed in the bottom end of the collecting box, a connecting plate is fixedly connected to the top end of the pull rod, a plurality of guide rods are fixedly connected to the bottom end of the connecting plate, and a driver is fixedly connected to the bottom ends of the guide rods. The device has the beneficial effects that the collection box ensures that impurity solid particles are taken away in time, and the impurity solid particles are prevented from being accumulated at the filter screen, so that the phenomenon that the flow velocity of the PCB acidic etching waste liquid is reduced is avoided.

Description

Technical Field

[0001] The utility model belongs to the field of PCB acid etching waste liquid circulation, relates to a technology of filtering impurity solid particles with a filter screen, and specifically is a PCB acid etching waste liquid circulation device. Background Art

[0002] PCB in Chinese stands for printed circuit board. PCB is a plate-like structure used to support and connect electronic components. It is widely used in various electronic equipment, communication equipment, computer hardware and other fields, and is an indispensable part of electronic products.

[0003] In the prior art, PCB is etched by acidic liquid, and the generated PCB acidic etching waste liquid is treated by a circulation device, on which a filter is connected by bolts, and the filter filters the impurity solid particles contained in the PCB acidic etching waste liquid, thereby achieving preliminary treatment of the PCB acidic etching waste liquid.

[0004] However, when the circulation equipment runs for a long time, the impurity solid particles at the filter will accumulate, and the existing impurity solid particles cannot be removed in time, which causes the filter to become blocked. The blockage causes the rate at which PCB acid etching waste liquid passes through the filter to decrease, thereby affecting the use effect of the circulation equipment. Utility Model Content

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a PCB acid etching waste liquid circulation device, which solves the problem that when the circulation device is running for a long time, the impurity solid particles at the filter screen will form accumulation, and the existing impurity solid particles cannot be removed in time, which causes the filter screen to form blockage, and the blockage causes the PCB acid etching waste liquid to pass through the filter screen. The speed is reduced, thereby affecting the use effect of the circulation device.

[0006] To achieve the above-mentioned purpose, according to an embodiment of the first aspect of the utility model, a PCB acid etching waste liquid circulation device is provided, comprising:

[0007] A circulation equipment box, wherein a plurality of limit grooves are provided inside the circulation equipment box in the vertical direction, and a limit plate is slidably connected inside the limit grooves, and a reflow groove is provided along the bottom of the vertical limit plate of the circulation equipment box, and the reflow groove and the limit groove are not connected;

[0008] A limiting plate, wherein a side surface of the limiting plate away from the circulation equipment box is fixedly connected to a collecting box, a top end of the limiting plate is fixedly connected to a pull rod, and a bottom end of the collecting box is provided with a plurality of guide holes; and

[0009] A pull rod, the top end of which is fixedly connected to a connecting plate, the bottom end of which is fixedly connected to a plurality of guide rods, and the bottom end of which is fixedly connected to a driving machine.

[0010] As a further solution of the utility model: a protective box is fixedly connected to the top of the circulation equipment box, a plurality of limit grooves are located at both ends of the circulation equipment box, the vertical direction of the limit grooves is perpendicular to the horizontal direction of the reflow grooves, a filter is bolted to the inner surface of the circulation equipment box close to the reflow groove, and the driving motor is fixedly connected to the side surface of the protective box and the side surface is close to the guide rod.

[0011] As a further solution of the utility model: the limiting groove completely passes through the side end of the protection box.

[0012] As a further solution of the utility model: the reflux groove is provided with a rounded corner at the side end close to the limiting groove.

[0013] As a further solution of the utility model: the guide hole completely penetrates the bottom of the collection box, and a plurality of the guide holes are distributed on both sides of the collection box.

[0014] As a further solution of the utility model: the side end of the collecting box away from the filter is fixedly connected with a guide column, the cross-section of the guide column is a quarter circle, and the bottom of the guide column does not completely cover the reflux groove.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The reflux tank can prevent the PCB acid etching waste liquid from forming a reflux in the collection box to take away the impurity solid particles in the collection box, thereby ensuring the collection effect of the collection box on the impurity solid particles. When the collected impurity solid particles fill the collection box, the collection box ensures that the impurity solid particles are taken away in time, avoiding the accumulation of impurity solid particles at the filter screen, thereby avoiding the phenomenon of reduced flow rate of PCB acid etching waste liquid. When the collection box moves downward, the collection box applies pressure to the PCB acid etching waste liquid in the reflux tank, and the pressure drives the PCB acid etching waste liquid to flow, and the flowing PCB acid etching waste liquid takes away the impurity solid particles in the reflux tank;

[0017] 2. The limit groove limits the limit plate to ensure the stability of the limit plate sliding up and down. The limit plate ensures the stability of the collection box movement. When the collection box is completely moved out of the protective box, the staff removes the impurity solid particles. When the limit plate moves downward, the limit plate exerts downward pressure on the PCB acid etching waste liquid. The pressure drives the PCB acid etching waste liquid to flow, and the flow takes away the impurity solid particles in the limit groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the circulation equipment box of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the collection box of the present utility model.

[0021] Illustration: 1. Circulation equipment box; 2. Protection box; 3. Connecting plate; 4. Guide rod; 5. Driving machine; 6. Guide column; 7. Filter; 8. Limiting groove; 9. Rounded corner; 10. Reflux groove; 11. Pull rod; 12. Limiting plate; 13. Collection box; 14. Diversion hole. DETAILED DESCRIPTION

[0022] The technical solution of the utility model will be described clearly and completely in conjunction with the embodiments below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figures 1 to 3 As shown, a PCB acid etching waste liquid circulation device includes: a circulation device box 1, a limit plate 12 and a pull rod 11,

[0024] A plurality of limit grooves 8 are provided inside the circulation equipment box 1 along the vertical direction, and a limit plate 12 is slidably connected inside the limit groove 8. A reflux groove 10 is provided along the bottom of the vertical limit plate 12 of the circulation equipment box 1. The reflux groove 10 and the limit groove 8 are not connected, and the limit plate 12 is slidably connected in the limit groove 8. The limit groove 8 limits the limit plate 12 to ensure the stability of the limit plate 12 sliding up and down. When the limit plate 12 moves downward, the limit plate 12 exerts downward pressure on the PCB acid etching waste liquid, and the pressure drives the PCB acid etching waste liquid to flow, and the flow takes away the impurity solid particles in the limit groove 8;

[0025] It also includes a collecting box 13 fixedly connected to the side surface of the limiting plate 12 away from the circulation equipment box 1, a pull rod 11 fixedly connected to the top of the limiting plate 12, and a plurality of guide holes 14 are opened at the bottom of the collecting box 13. The limiting plate 12 transfers the limiting effect of the limiting groove 8 to the collecting box 13, and the limiting plate 12 drives the collecting box 13 to move up and down. When the collecting box 13 collects the impurity solid particles, part of the PCB acid etching waste liquid flows from the guide hole 14 to the reflux groove 10 and flows out from the reflux groove 10. The reflux groove 10 can avoid The PCB acidic etching waste liquid forms a reflux in the collecting box 13 to take away the impurity solid particles in the collecting box 13, thereby ensuring the collection effect of the collecting box 13 on the impurity solid particles. The collecting box 13 ensures that the impurity solid particles are taken away in time, thereby avoiding the phenomenon of reduced flow rate of the PCB acidic etching waste liquid. When the collecting box 13 moves downward, the collecting box 13 applies pressure to the PCB acidic etching waste liquid in the reflux tank 10, and the pressure drives the PCB acidic etching waste liquid to flow, and the flow takes away the impurity solid particles in the reflux tank 10; and

[0026] The top of the pull rod 11 is fixedly connected to a connecting plate 3, the bottom end of the connecting plate 3 is fixedly connected to a plurality of guide rods 4, the bottom end of the guide rods 4 is fixedly connected to a driving machine 5, and the connecting plate 3 realizes the function of transmitting the driving force. When the driving machine 5 drives the guide rods 4 to move upward, the guide rods 4 drive the connecting plate 3 to move upward, and the connecting plate 3 transmits the driving force of the driving machine 5 to the pull rod 11, so that the pull rod 11 moves upward following the guide rods 4.

[0027] In some specific implementation schemes, a protective box 2 is fixedly connected to the top of the circulation equipment box 1, and a plurality of limit grooves 8 are located at both ends of the circulation equipment box 1. The limit grooves 8 are vertically perpendicular to the horizontal direction of the reflux groove 10. A filter screen 7 is bolted to the inner surface of the circulation equipment box 1 close to the reflux groove 10. The driving machine 5 is fixedly connected to the side surface of the protective box 2 and the side surface is close to the guide rod 4. Based on the above implementation scheme, when the PCB acid etching waste liquid passes through the filter screen 7, the impurity solid particles are blocked by the filter screen 7 and fall into the collection box 13. When the collected impurity solid particles fill the collection box 13, the collection box 13 moves upward to remove the impurity solid particles.

[0028] In some specific implementation schemes, the limiting groove 8 completely penetrates the side end of the protection box 2 , and the limiting groove 8 can ensure that when the limiting plate 12 slides upward, the limiting plate 12 can continue to slide upward along the protection box 2 .

[0029] In some specific embodiments, the reflux groove 10 is provided with a rounded corner 9 at the side end near the limiting groove 8. When the PCB acid etching waste liquid in the limiting groove 8 carries impurity solid particles and flows, the rounded corner 9 accelerates the flow of the solid particles into the reflux groove 10.

[0030] In some specific implementation schemes, the guide hole 14 completely penetrates the bottom of the collection box 13, and a plurality of guide holes 14 are distributed on both sides of the collection box 13. The position distribution of the guide holes 14 ensures that when the collection box 13 moves downward, the collection box 13 has sufficient pressure on the PCB acid etching waste liquid to drive its flow.

[0031] In some specific embodiments, the side end of the collecting box 13 away from the filter screen 7 is fixedly connected with a guide column 6, the cross-section of the guide column 6 is a quarter circle, and the bottom of the guide column 6 does not completely cover the reflux groove 10. The guide column 6 has a guiding function for the PCB acid etching waste liquid, avoiding direct collision between the PCB acid etching waste liquid and the collecting box 13, affecting the rate of the PCB acid etching waste liquid. At the same time, the guide column 6 ensures the prerequisite for the reflux groove 10 to form a reflux.

[0032] In order for those skilled in the art to better understand the working principle of the embodiments of the present invention, the following is an explanation in conjunction with specific application scenarios:

[0033] When the PCB acid etching waste liquid is preliminarily treated through the circulation equipment box 1, the PCB acid etching waste liquid passes through the filter screen 7, and the impurity solid particles are blocked by the filter screen 7 and fall into the collection box 13. Part of the PCB acid etching waste liquid flows from the guide hole 14 to the reflux groove 10 and flows out from the reflux groove 10. The reflux groove 10 can prevent the PCB acid etching waste liquid from forming a reflux in the collection box 13 to take away the impurity solid particles in the collection box 13, thereby ensuring the collection effect of the collection box 13 on the impurity solid particles. When the collected impurity solid particles fill the collection box 13, the collection box 13 ensures that the impurity solid particles are taken away in time, avoiding the accumulation of impurity solid particles at the filter screen 7, thereby avoiding the phenomenon of reduced flow rate of the PCB acid etching waste liquid. When the collection box 13 moves downward, the collection box 13 applies pressure to the PCB acid etching waste liquid in the reflux groove 10, and the pressure drives the PCB acid etching waste liquid to flow, and the flowing PCB acid etching waste liquid takes away the impurity solid particles in the reflux groove 10;

[0034] When the driving machine 5 drives the guide rod 4 to move upward, the guide rod 4 drives the connecting plate 3 to move upward, and the connecting plate 3 transmits the driving force of the driving machine 5 to the pull rod 11, so that the pull rod 11 moves upward with the guide rod 4, and the pull rod 11 drives the limit plate 12 to move upward, and the limit plate 12 drives the collecting box 13 to move upward, and the limit plate 12 is slidably connected in the limit groove 8, and the limit groove 8 limits the limit plate 12 to ensure the stability of the limit plate 12 sliding up and down, and the limit plate 12 ensures the stability of the collection box 13 movement. When the collection box 13 is moved out of the circulation equipment box 1 and into the protection box 2, the PCB acid etching waste liquid flows out from the guide hole 14. When the collection box 13 is completely moved out of the protection box 2, the staff removes the impurity solid particles. When the limit plate 12 moves downward, the limit plate 12 exerts downward pressure on the PCB acid etching waste liquid, and the pressure drives the PCB acid etching waste liquid to flow, and the flow takes away the impurity solid particles in the limit groove 8.

[0035] The above embodiments are only used to illustrate the technical method of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical method of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the utility model.

Claims

1. A PCB acid etching waste liquid circulation device, characterized in that: include: A circulation device box (1), wherein a plurality of limit grooves (8) are provided inside the circulation device box (1) along a vertical direction, a limit plate (12) is slidably connected inside the limit grooves (8), and a reflow groove (10) is provided along the bottom of the vertical limit plate (12) of the circulation device box (1), and the reflow groove (10) and the limit groove (8) are not connected; A limiting plate (12), wherein a side surface of the limiting plate (12) away from the circulation device box (1) is fixedly connected to a collecting box (13), a top end of the limiting plate (12) is fixedly connected to a pull rod (11), and a bottom end of the collecting box (13) is provided with a plurality of guide holes (14); and A pull rod (11), wherein the top end of the pull rod (11) is fixedly connected to a connecting plate (3), the bottom end of the connecting plate (3) is fixedly connected to a plurality of guide rods (4), and the bottom end of the guide rods (4) is fixedly connected to a driving machine (5).

2. A PCB acid etching waste liquid circulation device according to claim 1, characterized in that: The top of the circulation equipment box (1) is fixedly connected to a protection box (2), a plurality of limit grooves (8) are located at both ends of the circulation equipment box (1), the limit grooves (8) are vertically perpendicular to the reflow groove (10) in a horizontal direction, a filter screen (7) is bolted to the inner surface of the circulation equipment box (1) close to the reflow groove (10), and the drive motor (5) is fixedly connected to the side surface of the protection box (2) and the side surface is close to the guide rod (4).

3. A PCB acid etching waste liquid circulation device according to claim 2, characterized in that: The limiting groove (8) completely passes through the side end of the protection box (2).

4. A PCB acid etching waste liquid circulation device according to claim 1, characterized in that: The reflux groove (10) is provided with a rounded corner (9) at the side end close to the limiting groove (8).

5. The PCB acid etching waste liquid circulation equipment according to claim 1, characterized in that: The guide hole (14) completely penetrates the bottom of the collection box (13), and a plurality of the guide holes (14) are distributed on both sides of the collection box (13).

6. A PCB acid etching waste liquid circulation device according to claim 1, characterized in that: A guide column (6) is fixedly connected to the side end of the collection box (13) away from the filter screen (7); the cross section of the guide column (6) is a quarter circle, and the bottom of the guide column (6) does not completely cover the reflux groove (10).

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