General hot-plug automatic rewinding filter for chemical processing of PCB (Printed Circuit Board)

Abstract

The utility model discloses a general hot plug automatic rewinding filter for PCB chemical processing, which comprises a rack and a control motor, the rack is provided with a containing cavity, one end of the rack is provided with an opening, one surface of the rack is provided with a water inlet and a water outlet, and the side surface of the rack is provided with a liquid level sensor and a control host. The at least two control motors are fixedly arranged at the end, with the opening, of the rack, output shafts of the two control motors are each sleeved with a filter cloth roll, and filter cloth of the two filter cloth rolls is connected to form a filtrate area; the first filter cloth roll is used for releasing the filter cloth, the second filter cloth roll is used for recycling the filter cloth, the liquid level sensor is used for judging whether the current filter cloth reaches the filter cloth updating standard or not, the filter cloth is automatically controlled to be updated and replaced by the control motor, the operation of manually replacing the filter cloth is omitted, a filter element does not need to be replaced after a machine is stopped, and the production efficiency is improved. And when a new filter cloth roll is replaced, the exhausted cloth roll can be directly taken down and replaced by the new filter cloth roll.

Description

Technical Field

[0001] The utility model relates to the technical field, in particular to a universal hot-swap automatic rewinding filter for PCB chemical processing. Background Art

[0002] PCBs are sophisticated electronic components with very fine circuits etched on their panels. However, tiny particles, dust, chemicals, and other impurities often adhere to their surfaces, which can cause short circuits or open circuits, thereby affecting the quality of the entire PCB. Currently, the main method for cleaning PCBs is to use specific chemical solutions to remove impurities on the PCBs. However, since chemical solutions may also contain large particles of impurities, making it impossible to completely clean the PCB, the chemical solution must be cleaned before cleaning.

[0003] In the existing technology, impurities in chemical solutions are generally filtered through a dedicated chemical filter, and the filter element of the filter is used to adsorb the impurities in the chemical solution. However, traditional filters will cause the filtration flow and filtration effect to decrease due to the attenuation of the filter element life. In addition, when the filter element needs to be replaced or maintained, the machine needs to be shut down for replacement and maintenance, which in turn leads to a decrease in productivity. Therefore, a PCB chemical solution filtration device with a more reasonable structure is urgently needed to solve the above technical problems. Utility Model Content

[0004] In view of the shortcomings of the above-mentioned technology that the filter element of the traditional filter needs to be stopped for replacement and maintenance, resulting in a decrease in productivity, the utility model provides a universal hot-swappable automatic rewinding filter for PCB chemical processing.

[0005] To achieve the above-mentioned objectives, the utility model provides a universal hot-swappable automatic rewinding filter for PCB chemical processing, including a frame and a control motor. The frame has a cavity and an opening at one end, and a water inlet and a water outlet are provided on one surface of the frame; the control motor is provided with two output shafts, and the control motor is fixedly arranged at the end of the frame with the opening. The two output shafts of the control motor are respectively sleeved with a first filter cloth roll and a second filter cloth roll, and the first filter cloth roll and the second filter cloth roll are connected to each other, and the connection point of the first filter cloth roll and the second filter cloth roll is located between the water inlet and the water outlet.

[0006] As an improved solution of the present invention, guide plates are formed on both sides of the frame, the guide plates are inclined relative to the horizontal direction, and the filter cloths of the first filter cloth roll and the second filter cloth roll are attached to the guide plates.

[0007] As an improved solution of the present invention, the width of the filter cloth is adapted to the distance between the frame and the inner wall.

[0008] As an improved solution of the present invention, the first filter cloth roll and the second filter cloth roll are used for releasing new filter cloth and recovering old filter cloth respectively.

[0009] As an improved solution of the present invention, a guide rail is formed on the side of the guide plate that is in contact with the filter cloth, and the filter cloth roll is arranged in the guide rail.

[0010] As an improved solution of the present invention, the inner wall of the frame is formed with a load-bearing column for supporting the filter cloth roll.

[0011] As an improved solution of the present invention, a control host and a liquid level sensor electrically connected to the control host are provided on the side of the frame, and the control motor is electrically connected to the control host.

[0012] The beneficial effects of the utility model are as follows: compared with the prior art, the utility model provides a universal hot-swappable automatic rewinding filter for PCB chemical processing, comprising a frame and a control motor, the frame having a cavity and an opening at one end, a water inlet and a water outlet on one surface of the frame, a liquid level sensor and a control host being provided on the side of the frame, at least two control motors being fixedly arranged at the end of the frame having the opening, the output shafts of the two control motors being respectively sleeved with a filter cloth roll, the filter cloths of the two filter cloth rolls being connected to form a filtrate area, the filtrate area being arranged between the water inlet and the water outlet, the first filter cloth roll of the utility model being used to release the filter cloth, and the second filter cloth roll being used to recover the filter cloth, the liquid level sensor being used to judge whether the current filter cloth has reached the standard for updating the filter cloth, the update and replacement of the filter cloth being automatically controlled by the control motor, eliminating the need for manual operation to replace the filter cloth, and also eliminating the need to stop the machine to replace the filter element, thereby improving the production utilization rate, and since the filter cloth roll of the utility model is arranged at the opening, when replacing the new filter cloth roll, the exhausted cloth roll can be directly removed and replaced with the new filter cloth roll. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional diagram of the utility model;

[0014] Figure 2 It is a cross-sectional view of the present utility model.

[0015] The main component symbols are described as follows:

[0016] 1. Frame; 11. Water inlet; 12. Water outlet; 2. Control motor; 3. First filter cloth roll; 4. Second filter cloth roll; 5. Liquid level sensor; 6. Control unit; 7. Guide plate; 8. Load-bearing column. DETAILED DESCRIPTION

[0017] In order to more clearly illustrate the present invention, the present invention will be further described below with reference to the accompanying drawings.

[0018] In the following description, examples are provided to provide a deeper understanding of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. It should be understood that the specific embodiments described are only for the purpose of explaining the present invention and are not intended to limit the present invention.

[0019] It should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of the stated features, integers, steps, operations, elements or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components or combinations thereof.

[0020] Currently, chemical solutions used to clean PCBs are generally filtered through dedicated chemical filters, with the filter element of the filter adsorbing the impurities. However, traditional filters suffer from reduced filtration flow and efficiency due to the degradation of the filter element's lifespan. Furthermore, when the filter element needs to be replaced or maintained, the machine needs to be shut down for replacement and maintenance, which in turn leads to decreased productivity. Therefore, a PCB chemical solution filter with a more rational structure is urgently needed to solve the above technical problems.

[0021] See also Figure 1-Figure 2 The utility model is a universal hot-swappable automatic rewinding filter for PCB chemical processing, comprising a frame 1 and a control motor 2. The frame 1 has a cavity and is open at one end. A water inlet 11 and a water outlet 12 are provided on one surface of the frame 1. A liquid level sensor 5 and a control host 6 are provided on the side of the frame 1; the control motor 2 is provided with two output shafts, and the control motor 2 is fixedly arranged at one end of the frame 1 with the opening. The two output shafts of the control motor 2 are respectively sleeved with a first filter cloth roll 3 and a second filter cloth roll 4, and the first filter cloth roll 3 and the second filter cloth roll 4 are connected to each other. The connection point of the first filter cloth roll 3 and the second filter cloth roll 4 is located between the water inlet 11 and the water outlet 12, and the filtrate area is arranged between the water inlet 11 and the water outlet 12.

[0022] Among them, when the control motor 2 is started, the two output shafts of the control motor 2 rotate in the same direction accordingly, so that the first filter cloth roll 3 or the second filter cloth roll 4 can be used to release new filter cloth or to recycle old filter cloth, respectively. It can be understood that one of the first filter cloth roll 3 and the second filter cloth roll 4 is an empty cloth roll with only a roll core, which is mainly used to recycle the filter cloth of the other filter cloth roll.

[0023] When the device of the present invention is working, the chemical solution to be filtered is first discharged from the water inlet 11. The chemical solution will be adsorbed and blocked by the filter cloth in the filtrate area for large particles of impurities in the chemical solution, and the chemical solution will be immersed in the filter cloth and flow out in the direction of the water outlet 12, thereby completing the impurity removal of the chemical solution. Furthermore, when the filter cloth is consumed to a certain extent, the filtration flow rate and the filtration effect will be reduced. At this time, the liquid level of the chemical solution stored in the frame 1 will rise until it reaches a height that can be detected by the liquid level sensor 5. The liquid level sensor 5 will send a signal to the control host 6 to replace the filter cloth. At this time, the control motor 2 will roll the filter cloth to update the position and roll the worn filter cloth onto the second filter cloth roll 4. At the same time, the new filter cloth on the first filter cloth roll 3 is synchronously replaced to the filtrate area, so that the filter element can be replaced or maintained without stopping the machine, thereby improving the productivity and utilization rate. Since the filter cloth roll is arranged at the opening of the frame 1, when replacing the new filter cloth roll, the filter element can be directly removed from the motor output shaft for replacement.

[0024] In this embodiment, guide plates 7 are formed on both sides of the frame 1. The guide plates 7 are arranged tilted relative to the horizontal direction. When the chemical solution is discharged from the water inlet 11, the chemical solution has a certain weight when falling, and the falling impacts the filter cloth, causing the filter cloth to tilt and sway. Therefore, by providing the guide plates 7, the filter cloth is attached to the guide plates 7, so that the filter cloth roll can move along the guide plates 7 when a new filter cloth is replaced, ensuring that the position height of the filtrate area remains unchanged. Furthermore, a guide rail can be provided on the side of the guide plate 7 facing the filter cloth, and the filter cloth can be embedded in the guide rail to prevent the chemical solution from falling and causing the filter cloth to separate from the guide plate 7 when the control motor 2 is started; and in order to ensure that the filter cloth roll will not be deformed by the excessive weight of the chemical solution, at least one bearing column 8 for supporting the filter cloth roll is provided on the inner wall of the frame. The multiple bearing columns 8 are arc-shaped and spaced apart. The contact surface between the bearing columns 8 and the filter cloth is an arc surface. The bearing columns 8 can provide a certain supporting force to the filter cloth roll, and the chemical solution can be filtered and flow out from the gaps between the bearing columns 8.

[0025] The advantages of this utility model are:

[0026] 1. The filter cloths of the first and second filter cloth rolls are updated and replaced by a control motor. The liquid level is automatically detected by a liquid level sensor, thereby controlling the start of the control motor to automatically replace the filter cloth. When the filter cloth roll is exhausted, it can be directly removed from the motor and replaced without stopping the machine for maintenance, thereby improving production utilization.

[0027] The above disclosures are only a few specific embodiments of the present invention, but the present invention is not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the scope of protection of the present invention.

Claims

1. A universal hot-swappable automatic rewinding filter for PCB chemical processing, characterized in that: The invention comprises a frame and a control motor, wherein the frame has a cavity and one end is open, and a water inlet and a water outlet are provided on one surface of the frame; the control motor is provided with two output shafts, and the control motor is fixedly arranged at the end of the frame with the opening, and the two output shafts of the control motor are respectively sleeved with a first filter cloth roll and a second filter cloth roll, the first filter cloth roll and the second filter cloth roll are connected to each other, and the connection point of the first filter cloth roll and the second filter cloth roll is located between the water inlet and the water outlet.

2. A universal hot-swappable automatic rewinding filter for PCB chemical processing according to claim 1, characterized in that: Guide plates are formed on both sides of the frame. The guide plates are arranged obliquely relative to the horizontal direction, and the filter cloths of the first filter cloth roll and the second filter cloth roll are attached to the guide plates.

3. A universal hot-swappable automatic rewinding filter for PCB chemical processing according to claim 2, characterized in that: The width of the filter cloth is adapted to the distance between the frame and the inner wall.

4. A universal hot-swappable automatic rewinding filter for PCB chemical processing according to claim 1, characterized in that: The first filter cloth roll and the second filter cloth roll are used for releasing new filter cloth and recycling old filter cloth respectively.

5. The universal hot-swappable automatic rewinding filter for PCB chemical processing according to claim 2, characterized in that: A guide rail is formed on a surface of the guide plate that is in contact with the filter cloth, and the filter cloth roll is arranged in the guide rail.

6. A universal hot-swappable automatic rewinding filter for PCB chemical processing according to claim 2, characterized in that: The inner wall of the frame is formed with at least one load-bearing column for supporting the filter cloth roll, and a plurality of the load-bearing columns are arranged at intervals.

7. The universal hot-swappable automatic rewinding filter for PCB chemical processing according to claim 1, characterized in that: A control host and a liquid level sensor electrically connected to the control host are provided on the side of the frame, and the control motor is electrically connected to the control host.

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