Filter device for circuit board

Abstract

The utility model relates to a filtering device for a circuit board, which comprises a filtering main body and a sliding mechanism arranged on the filtering main body, the sliding mechanism is movably connected with the filtering main body, the filtering main body is provided with a connecting sleeve body and a filtering inner-layer body, the filtering inner-layer body is connected in the connecting sleeve body, and the filtering inner-layer body is connected in the connecting sleeve body. The connecting sleeve body is used for forming a stable peripheral layer on the outer surface of the filtering inner layer body, the filtering device for the circuit board can melt sodium hydroxide in the filtering device, crystal blocks can be shaken to be dissolved, it is guaranteed that a spray pipe and a nozzle on a film removing machine cannot be blocked by the sodium hydroxide crystal blocks, and therefore the filtering device is convenient to use. And the sodium hydroxide is completely dissolved, the concentration of the film stripping liquid is normal, the film stripping efficiency is not influenced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic circuit board production equipment, in particular to a filtering device used for filtering sodium hydroxide in the process of circuit board production. Background Art

[0002] As we all know, in the electronic circuit board technology industry, printed circuit boards are widely used in various fields. Therefore, in the production process of printed circuit boards, each production process involves multiple process steps. Specifically, after the circuit board completes the graphic electroplating process, it must enter the etching process. Before the circuit board is etched, the dry film must first pass through a 5% sodium hydroxide solution and be fluffed by spraying it through a nozzle → stripping → etching. In the stripping section before etching, flake sodium hydroxide needs to be added. The flake sodium hydroxide is directly poured into the stripping tank on the machine and melted naturally. During the natural melting of sodium hydroxide, crystal blocks will precipitate at the bottom of the tank. The crystals will cause the nozzles and nozzles on the stripping machine to be easily clogged, affecting the stripping effect. The sodium hydroxide crystal blocks are not completely dissolved, and the stripping solution concentration is insufficient, which in turn affects the stripping efficiency. Therefore, a filter device for filtering sodium hydroxide from the circuit board can be configured on the stripping tank, so that the sodium hydroxide melts in the filter device. At this time, the crystal blocks can be shaken to dissolve. The nozzles and nozzles on the stripping machine will not be clogged by the sodium hydroxide crystal blocks, which will not affect the stripping effect. The sodium hydroxide is completely dissolved, the stripping solution concentration is normal, and the stripping efficiency is not affected. Utility Model Content

[0003] In view of this, the purpose of the present invention is to provide a filtering device for filtering sodium hydroxide in a circuit board production process, in which sodium hydroxide is melted in the filtering device, crystal blocks can be shaken and dissolved, and the filtering device is easy to use.

[0004] In order to achieve the purpose of the present invention, the present invention provides a filtering device for circuit boards, including a filter body and a sliding mechanism arranged on the filter body, the sliding mechanism is movably connected to the filter body, the filter body is provided with a connecting sleeve and a filter inner layer body, the filter inner layer body is connected to the connecting sleeve, the connecting sleeve is used to form a stable outer layer on the outer surface of the filter inner layer body, the sliding mechanism includes a sliding connection unit, the sliding connection unit is provided with a plurality of groups, each group of sliding connection units is movably connected to the bottom of the connecting sleeve, the sliding connection unit is used to increase the sliding surface formed between the bottom of the connecting sleeve and the bottom surface of the external film stripping cylinder.

[0005] Preferably, the filter inner layer body is a mesh-shaped filter inner body, and the size of each mesh hole on the mesh-shaped filter inner body is 0.2-0.5 mm.

[0006] Preferably, the sliding connection unit includes a sliding member and a sliding connection seat, the sliding member is slidably connected to the sliding connection seat, one side of the sliding connection seat is a connection surface of the connecting sleeve, and the other side is a connection surface of the sliding member.

[0007] Preferably, a connecting bar hole is opened in the middle of one side of the sliding connecting seat, a cylindrical connecting groove is formed in the connecting bar hole, the connecting bar hole is used to form a detachable connection with the connecting sleeve, and the connecting surface of the connecting sleeve of the sliding connecting seat is a rubber material connecting surface.

[0008] Preferably, a rectangular slot is provided on the other side of the sliding connection seat, and a pulley connection space is formed in the rectangular slot. The pulley connection space is used to connect the sliding part, and the sliding part is a sliding roller. Part of the roller body of the sliding roller protrudes from the hole surface of the rectangular slot.

[0009] Preferably, the connecting sleeve is a connecting frame, and a connecting reinforcement column is provided on the connecting sleeve. The connecting reinforcement column is provided with a first connecting reinforcement column and a second connecting reinforcement column. There are more than three types of the first connecting reinforcement columns, and there are more than three groups of the second reinforcement connecting columns. The first connecting reinforcement column is a horizontally arranged connecting column, and the second connecting reinforcement column is a longitudinally arranged connecting column. Each of the first connecting reinforcement columns is cross-connected with each of the second connecting reinforcement columns to form a rectangular connecting frame.

[0010] Preferably, the connecting sleeve is further provided with a top connecting side column, and the top connecting side column is connected to the upper part of the connecting frame body which is cross-connected to the first connecting reinforcement column and the second connecting reinforcement column to form a rectangle.

[0011] Preferably, the connecting frame is further provided with a hand-held component, and there are more than two hand-held components, each of which is arranged on both sides of the top connecting side column.

[0012] Preferably, the hand-carrying component includes a connecting hole sleeve and a hand-carrying ring, and the hand-carrying ring is movably connected in the connecting hole sleeve, that is, the hand-carrying ring can be stretched up and down in the connecting hole sleeve.

[0013] Preferably, a bottom connecting plate is further provided at the bottom of the connecting sleeve, and the bottom connecting plate is used to connect the sliding connecting unit.

[0014] The beneficial effects of the utility model are as follows: the utility model provides a filtering device for circuit boards, the filtering device is arranged on the film stripping cylinder, comprising a filter body and a sliding mechanism arranged on the filter body, the sliding mechanism is movably connected to the filter body, the filter body is provided with a connecting sleeve and a filter inner layer body, the sliding mechanism comprises a sliding connection unit, the sliding connection unit is provided with a plurality of groups, each group of sliding connection units is movably connected to the bottom of the connecting sleeve, the sliding connection unit is used to increase the sliding surface formed between the bottom of the connecting sleeve and the bottom surface of the external film stripping cylinder, sodium hydroxide melts in the filtering device, and can be shaken to dissolve if there are crystal blocks, thereby ensuring that the nozzle and nozzle on the film stripping machine will not be blocked by the sodium hydroxide crystal blocks, and will not affect the film stripping effect, the sodium hydroxide is completely dissolved, the concentration of the film stripping liquid is normal, the film stripping efficiency is not affected, and the production efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and other purposes, features and advantages of the present invention will become more apparent through a more detailed description of the preferred embodiments of the present invention shown in the accompanying drawings. The same reference numerals indicate the same parts throughout the drawings, and the drawings are not intentionally scaled to actual size. The emphasis is on illustrating the subject matter of the present invention.

[0016] Figure 1 This is a schematic plan view of a filter device for a circuit board according to the present invention;

[0017] Figure 2 This is a top view of a filter device for a circuit board according to the present invention;

[0018] Figure 3 This is a schematic plan view of a sliding member in a filter device for a circuit board according to the present invention;

[0019] Figure 4 The utility model is a top view of a sliding member in a filtering device for a circuit board.

[0020] In the figure: 1. Filter body; 2. Sliding mechanism; 20. Sliding connection unit; 21. Sliding member; 22. Sliding connection seat; 23. Connection bar hole; 3. Connection sleeve; 31. Bottom connection plate; 4. Filter inner layer body; 5. First connection reinforcement column; 6. Second reinforcement connection column; 7. Top connection side column; 8. Handheld component; 81. Connection hole sleeve. DETAILED DESCRIPTION

[0021] In order to facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings.

[0022] It should be noted that when an element is considered to be "connected" to another element, it may be directly connected to the other element and integrated therewith, or there may be an intermediate element. The terms "mounted", "one end", "the other end" and similar expressions used herein are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this document pertains. The terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0024] like Figure 1-4 As shown, an embodiment of the present invention provides a filtering device for a circuit board, comprising a filter body 1 and a sliding mechanism 2 arranged on the filter body, the sliding mechanism 2 is movably connected to the filter body 1, the filter body 1 is provided with a connecting sleeve 3 and a filter inner layer body 4, the size of the filter body 1 is configured according to the size of the film stripping cylinder on the PCB integrated production equipment, the filter inner layer body 4 is connected to the connecting sleeve 3, the connecting sleeve 3 is used to form a stable outer layer on the outer surface of the filter inner layer body 4, the sliding mechanism 2 includes a sliding connection unit 20, the sliding connection unit 20 is provided with a plurality of groups, each group of sliding connection units is movably connected to the bottom of the connecting sleeve 3, and the sliding connection unit 20 is used to increase the connection between the connecting sleeve and the filter body. A sliding surface is formed between the bottom of the body 3 and the bottom surface of the external film stripping cylinder. Specifically, after the circuit board completes the graphic electroplating process, it must enter the etching process. Before the circuit board is etched, the dry film must first be fluffed by spraying a 5% sodium hydroxide solution through a nozzle → film stripping → etching. In the film stripping stage before etching, flaky sodium hydroxide must be added. The flaky sodium hydroxide is poured into the dedicated filter body 1 in batches. Because crystals will be produced during the natural melting of the sodium hydroxide solution, the sliding surface formed can shake and dissolve the crystal blocks, ensuring that the nozzles and nozzles on the film stripping machine will not be blocked by the sodium hydroxide crystal blocks, and will not affect the film stripping effect. The sodium hydroxide is completely dissolved and the concentration of the film stripping liquid is normal, ensuring that the film stripping efficiency is not affected.

[0025] like Figure 1-4 As shown, in a further preferred embodiment, the filter inner layer body 4 is a mesh-shaped filter inner liner body, and the size of each mesh on the mesh-shaped filter inner liner body is 0.2-0.5 mm. Specifically, in this embodiment, the size of each mesh on the mesh-shaped filter inner liner is 0.3 mm or 0.25 mm.

[0026] like Figure 1-4As shown, in a further preferred embodiment, the sliding connection unit 20 includes a sliding member 21 and a sliding connection seat 22. The sliding member 21 is slidably connected to the sliding connection seat 22. The sliding member 21 is a sliding roller or a sliding wheel. One side of the sliding connection seat is a connecting sleeve connection surface, and the other side is a sliding member connection surface. The other side of the sliding connection seat is a slot connection surface for connecting the sliding roller.

[0027] like Figure 1-4 As shown, in a preferred embodiment, a connecting strip hole 23 is provided in the middle of one side of the sliding connecting seat 22, and a cylindrical connecting groove is formed in the connecting strip hole 23. The width of the connecting groove just matches the diameter of the connecting reinforcement column on the connecting sleeve, and the corresponding connection is used to form a detachable connection with the connecting sleeve. As another embodiment, the connecting sleeve connecting surface of the sliding connecting seat can be set as a rubber material connecting surface. In this embodiment, the sliding connecting seat is set so that a part of the seat body is a softer soft connecting surface, which is convenient for disassembly and connection. The connecting surface of a part of the soft body can be connected to the remaining most of the sliding connecting seat by die-casting or sealing bonding.

[0028] like Figure 1-4 As shown, in a further preferred embodiment, a rectangular slot is provided on the other side of the sliding connection seat 22, and a pulley connection space is formed in the rectangular slot. The pulley connection space is used to connect the sliding member. The sliding member 21 is a sliding roller. Part of the roller body of the sliding roller protrudes from the orifice surface of the rectangular slot. A sliding surface is formed between the protruding sliding roller body and the bottom surface of the film stripping cylinder. The filter body 1 is shaken left and right in the film stripping cylinder, and the sodium hydroxide melts in the filter body. Any crystal blocks are dissolved by shaking.

[0029] like Figure 1-4 As shown, in a further preferred embodiment, the connecting sleeve 3 is a connecting frame, and a connecting reinforcement column is provided on the connecting sleeve 3. The connecting reinforcement column is provided with a first connecting reinforcement column 5 and a second connecting reinforcement column 6. The connecting reinforcement columns are all provided to form an external reinforcement connector outside the filter inner layer body, to strengthen the overall structural strength of the filter inner layer body, and to stabilize the shaking structure of the filter body. There are more than three groups of first connecting reinforcement columns 5, and there are more than three groups of second reinforcing connecting columns 6. The first connecting reinforcement column 5 is a horizontally arranged connecting column, and the second connecting reinforcement column 6 is a longitudinally arranged connecting column. Each first connecting reinforcement column and each second connecting reinforcement column are cross-connected to form a rectangular connecting frame. The rectangular connecting frame and the filter inner layer body can be connected by electroplating welding or other methods that can be tightly connected to ensure that the connection structure is stable.

[0030] like Figure 1-4As shown, in a further preferred embodiment, the connecting sleeve 3 is further provided with a top connecting side column 7, and the top connecting side column 7 is connected to the upper part of the connecting frame which is cross-connected to form a rectangle with the first connecting reinforcement column 5 and the second connecting reinforcement column 6. The top connecting column can be a solid column-type rectangular frame with a larger radius, which ensures the stability of the overall connection structure at the top of the connecting sleeve.

[0031] like Figure 1-4 As shown, in a preferred embodiment, a hand-held component 8 is further provided on the connecting frame, and there are more than two hand-held components 8, each of which is arranged on both sides of the top connecting side column. Specifically, in this embodiment, the hand-held component 8 is a square-shaped hand-held ring, which is convenient for taking the filter body and shaking operation.

[0032] like Figure 1-4 As shown, in a further preferred embodiment, the hand-held component 8 includes a connecting hole sleeve 81 and a hand-held ring, and the hand-held ring is movably connected to the connecting hole sleeve, that is, the hand-held ring can be stretched up and down in the connecting hole sleeve, and the connecting sleeve is a ring-shaped connecting ring sleeve, and the hand-held component can be extended and recovered up and down in the connecting ring sleeve.

[0033] like Figure 1-4 As shown, in a further preferred embodiment, a bottom connecting plate 31 is further provided at the bottom of the connecting sleeve 3. The bottom connecting plate 31 is used to connect the sliding connecting unit. The bottom connecting plate 31 is also used to strengthen the overall structural strength of the connecting sleeve.

[0034] The beneficial effects of the utility model are as follows: the utility model provides a filtering device for circuit boards, the filtering device is arranged on the film stripping cylinder, including a filter body and a sliding mechanism arranged on the filter body, the sliding mechanism is movably connected to the filter body, the filter body is provided with a connecting sleeve and a filter inner layer body, the sliding mechanism includes a sliding connection unit, the sliding connection unit is provided with a plurality of groups, each group of sliding connection units is movably connected to the bottom of the connecting sleeve, the sliding connection unit is used to increase the sliding surface formed between the bottom of the connecting sleeve and the bottom surface of the external film stripping cylinder, sodium hydroxide melts in the filtering device, and crystal blocks can be shaken to dissolve, ensuring that the nozzle and nozzle on the film stripping machine will not be blocked by the sodium hydroxide crystal blocks, and will not affect the film stripping effect, the sodium hydroxide is completely dissolved, the concentration of the film stripping liquid is normal, the film stripping efficiency is not affected, and the production efficiency is improved.

[0035] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0036] In the description of this specification, the description with reference to the terms "preferred embodiment", "further embodiment", "other embodiments" or "specific example" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0037] The above embodiments merely illustrate several implementations of the utility model. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the utility model, and these modifications and improvements fall within the scope of protection of the utility model. Therefore, the scope of protection of the utility model patent shall be determined by the appended claims.

Claims

1. A filtering device for a circuit board, characterized in that: It includes a filter body and a sliding mechanism arranged on the filter body, the sliding mechanism is movably connected to the filter body, the filter body is provided with a connecting sleeve and a filter inner layer body, the filter inner layer body is connected to the connecting sleeve, the connecting sleeve is used to form a stable outer layer on the outer surface of the filter inner layer body, the sliding mechanism includes a sliding connection unit, the sliding connection unit is provided with a plurality of groups, each group of sliding connection units is movably connected to the bottom of the connecting sleeve, the sliding connection unit is used to increase the sliding surface formed between the bottom of the connecting sleeve and the bottom surface of the external film stripping cylinder.

2. The filter device for a circuit board according to claim 1, wherein: The filter inner layer body is a mesh-shaped filter inner body, and the size of each mesh on the mesh-shaped filter inner body is 0.2-0.5 mm.

3. The filter device for a circuit board according to claim 1, wherein: The sliding connection unit includes a sliding member and a sliding connection seat. The sliding member is slidably connected to the sliding connection seat. One side of the sliding connection seat is a connecting surface of the connecting sleeve, and the other side is a connecting surface of the sliding member.

4. The filter device for a circuit board according to claim 3, wherein: A connecting bar hole is provided in the middle of one side of the sliding connecting seat, a cylindrical connecting groove is formed in the connecting bar hole, and the connecting bar hole is used to form a detachable connection with the connecting sleeve body. The connecting surface of the connecting sleeve body of the sliding connecting seat is a rubber material connecting surface.

5. The filter device for a circuit board according to claim 3, wherein: A rectangular slot is provided on the other side of the sliding connection seat, and a pulley connection space is formed in the rectangular slot. The pulley connection space is used to connect the sliding part, and the sliding part is a sliding roller. Part of the roller body of the sliding roller protrudes from the hole surface of the rectangular slot.

6. The filter device for a circuit board according to claim 1, wherein: The connecting sleeve is a connecting frame, and a connecting reinforcement column is provided on the connecting sleeve. The connecting reinforcement column is provided with a first connecting reinforcement column and a second connecting reinforcement column. There are more than three types of the first connecting reinforcement columns, and there are more than three groups of the second connecting reinforcement columns. The first connecting reinforcement columns are horizontally arranged connecting columns, and the second connecting reinforcement columns are longitudinally arranged connecting columns. Each of the first connecting reinforcement columns and each of the second connecting reinforcement columns are cross-connected to form a rectangular connecting frame.

7. The filter device for a circuit board according to claim 6, wherein: The connecting sleeve is further provided with a top connecting side column, and the top connecting side column is connected to the upper part of the connecting frame body which is cross-connected to form a rectangle with the first connecting reinforcement column and the second connecting reinforcement column.

8. The filter device for a circuit board according to claim 7, wherein: The connecting frame is also provided with a hand-held component, and more than two hand-held components are provided, and each hand-held component is arranged on both sides of the top connecting side column.

9. The filter device for a circuit board according to claim 8, wherein: The hand-held component comprises a connecting hole sleeve and a hand-held ring. The hand-held ring is movably connected in the connecting hole sleeve, that is, the hand-held ring can be stretched up and down in the connecting hole sleeve.

10. The filter device for a circuit board according to claim 6, wherein: A bottom connecting plate is further provided at the bottom of the connecting sleeve, and the bottom connecting plate is used to connect the sliding connecting unit.

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