Volcanic ash circulating device and circuit board manufacturing apparatus
By setting up a filter structure with an outer and inner box at the feed inlet of the volcanic ash circulation device, the problem of foreign matter clogging the holes in the volcanic ash grinding machine is solved, achieving effective filtration of foreign matter, improving the production quality of circuit boards and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HESHAN SHIAN ELECTRONIC TECH CO LTD
- Filing Date
- 2025-08-07
- Publication Date
- 2026-07-10
AI Technical Summary
In the existing technology, volcanic ash grinding machines fail to effectively filter foreign objects during PCB board manufacturing, resulting in foreign objects clogging holes, causing hole breakage and poor quality, and increasing manufacturing costs.
A filter structure is installed at the feed inlet of the volcanic ash recycling device, including an outer box and an inner box. The bottom walls of the outer box and the inner box are mesh structures. There is a gap between the inner box and the outer box. The side wall of the inner box has overflow holes for filtering foreign objects in the volcanic ash.
It effectively filters foreign objects in volcanic ash, avoiding hole breakage caused by foreign objects clogging the holes, thus improving the production quality of circuit boards and reducing manufacturing costs.
Smart Images
Figure CN224475278U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of circuit board manufacturing technology, and in particular to a volcanic ash recycling device and circuit board manufacturing equipment. Background Technology
[0002] Currently, the pretreatment process in PCB manufacturing involves the use of volcanic ash abrasive brushes. These brushes spray volcanic ash abrasive material onto nylon brushes, which then roughen the PCB substrate surface. However, because the volcanic ash is recycled and unfiltered, a large amount of foreign matter, such as copper shavings, nylon brush bristle shavings, and PP shavings, is generated in the abrasive material after brushing. When these foreign matter from the volcanic ash circulation tank is sprayed onto the board surface, it can easily clog holes, preventing copper plating during the electroplating process. This results in hole breakage, poor quality, and scrap, leading to serious customer complaints, significant losses, and increased production costs for the company. Utility Model Content
[0003] This invention aims to solve the technical problems existing in the prior art. To this end, this invention proposes a volcanic ash circulation device, which filters foreign objects in the volcanic ash by adding a filter structure at the feed inlet, thereby avoiding the phenomenon of pore breakage caused by foreign objects clogging the pores.
[0004] This utility model also proposes a circuit board manufacturing equipment having the above-mentioned volcanic ash recycling device.
[0005] A volcanic ash circulation device according to a first aspect of the present invention includes: a cylinder having a receiving cavity and a feed inlet communicating with the receiving cavity, the receiving cavity being used to store volcanic ash; a stirring mechanism for stirring the volcanic ash in the receiving cavity; a reflux device including a reflux pipe, one end of the reflux pipe being located above the feed inlet to return used volcanic ash to the feed inlet; and a filter structure placed at the feed inlet for filtering the volcanic ash flowing from the reflux pipe to the feed inlet.
[0006] The volcanic ash recycling device according to the present invention has at least the following beneficial effects: by adding a filter structure at the feed inlet, foreign matter in the volcanic ash can be filtered out, thereby avoiding the phenomenon of hole breakage caused by foreign matter clogging the hole.
[0007] According to some embodiments of the present invention, the filter structure includes an outer box body, the upper part of the outer box body has a first opening, a baffle portion is provided at the edge of the first opening, the baffle portion overlaps the edge of the feed inlet, and the bottom wall of the outer box body is configured as a mesh structure.
[0008] According to some embodiments of the present invention, the filter structure is provided with a handle rod, which is horizontally arranged and located at the first opening.
[0009] According to some embodiments of the present invention, the filter structure further includes an inner box body located inside the outer box body. The inner box body has a second opening at its top, and a hook portion is provided at the edge of the second opening. The hook portion is attached to the handle rod. The bottom wall of the inner box body is configured as a mesh structure, and there is a gap between the bottom wall of the inner box body and the bottom wall of the outer box body.
[0010] According to some embodiments of this utility model, the hook portion has an L-shaped structure.
[0011] According to some embodiments of the present invention, the side wall of the inner box is provided with an overflow hole, and the overflow hole connects the inner cavity of the inner box and the inner cavity of the outer box.
[0012] According to some embodiments of this utility model, the number of filter structures is at least two.
[0013] According to some embodiments of this utility model, the feed inlet is rectangular, and the filter structure is a cuboid structure.
[0014] The circuit board manufacturing equipment according to a second aspect of the present invention includes the volcanic ash recycling device of the first aspect embodiment.
[0015] The circuit board manufacturing equipment according to the present invention includes the volcanic ash recycling device of the first aspect embodiment, and has at least the above-mentioned beneficial effects, which will not be repeated here.
[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:
[0018] Figure 1 This is a schematic diagram of the structure of a volcanic ash recycling device according to some embodiments of the present invention;
[0019] Figure 2 This is a schematic diagram of the structure of a volcanic ash recycling device according to some embodiments of the present invention;
[0020] Figure 3 This is a schematic diagram of the structure of a volcanic ash recycling device according to some embodiments of the present invention;
[0021] Figure 4 This is an exploded view of the volcanic ash recycling device according to some embodiments of the present invention;
[0022] Figure 5This is an exploded view of the filter structure of the volcanic ash recycling device according to some embodiments of the present invention;
[0023] Figure 6 This is a cross-sectional view of the filter structure of a volcanic ash recycling device according to some embodiments of the present invention.
[0024] Figure label:
[0025] Volcanic ash recycling device 1000;
[0026] Cylinder body 100, receiving cavity 101, feed inlet 102;
[0027] 200 stirring mechanism;
[0028] Reflux tube 300;
[0029] Filter structure 400, outer box 401, first opening 402, baffle part 403, mesh structure 404, handle rod 405, inner box 406, second opening 407, hook part 408, overflow hole 409. Detailed Implementation
[0030] Reference Figure 1 As shown, a volcanic ash circulation device 1000 provided in this embodiment of the present invention includes a cylinder 100, a stirring mechanism 200, a reflux device and a filter structure 400.
[0031] The cylinder body 100 has an internal receiving cavity 101 for storing volcanic ash in a paste-like state. The top of the cylinder body 100 has a rectangular inlet 102 communicating with the receiving cavity 101. A stirring mechanism 200, including a motor and a stirring paddle, is used to stir the volcanic ash within the receiving cavity 101. The motor drives the stirring paddle to rotate, thus stirring the volcanic ash within the receiving cavity 101. A return device includes a return pipe 300, one end of which is located above the inlet 102. The return pipe 300 is used to return used volcanic ash to the inlet 102. The filter structure 400 can be understood as a cuboid structure with a concave cross-section. The filter structure 400 is placed at the feed inlet 102 and is used to filter the volcanic ash flowing from the return pipe 300 to the feed inlet 102. This can filter foreign objects in the volcanic ash, reuse the volcanic ash, reduce costs, and avoid foreign objects clogging the holes and causing hole breakage.
[0032] Reference Figure 5 and Figure 6As shown, the filter structure 400 is a box-shaped structure, including an outer box body 401. The outer box body 401 has a first opening 402 at its top. A baffle part 403 is provided at the edge of the first opening 402. The baffle part 403 overlaps the edge of the feed inlet 102. The bottom wall of the outer box body 401 is set as a mesh structure. The mesh structure can be understood as a fine mesh structure. The mesh aperture size of the mesh structure can be adapted to be able to filter foreign objects in volcanic ash.
[0033] In some other embodiments, the entire inner wall of the outer casing 401 can be configured as a mesh structure, which provides better filtration.
[0034] Reference Figure 5 and Figure 6 As shown, the filter structure 400 is equipped with a handle 405, which is horizontally positioned at the first opening 402. The handle 405 is provided to make it easier for workers to lift the entire filter structure 400 for cleaning operations.
[0035] Reference Figure 5 and Figure 6 As shown, in some embodiments, the filter structure 400 further includes an inner box 406 located inside the outer box 401. The inner box 406 has a second opening 407 at its top, and a hook portion 408 is provided at the edge of the second opening 407. The hook portion 408 is attached to the handle 405. The bottom wall of the inner box 406 is also configured as a mesh structure, and the filtration function is achieved through the mesh structure. There is a gap between the bottom wall of the inner box 406 and the bottom wall of the outer box 401.
[0036] This embodiment achieves dual filtration by setting an inner box 406 and an outer box 401, which can effectively filter foreign objects in volcanic ash. The inner box 406 makes full use of the internal space of the outer box 401, and the overall filter structure 400 has a small volume. When the inner box 406 is removed for cleaning, the outer box 401 can continue to perform the filtering function without interrupting the subsequent volcanic ash brushing process.
[0037] In some other embodiments, the entire inner wall of the inner box 406 can be configured as a mesh structure, which provides better filtration.
[0038] Reference Figure 6 As shown, in some embodiments, the hook portion 408 has an L-shaped structure. The hook portion 408 is hung on the handle 405, which can bear the weight of the entire inner box 406 and has a limiting function, making it difficult for the inner box 406 to move laterally.
[0039] Reference Figure 5 and Figure 6As shown, in some embodiments, the side wall of the inner box 406 is provided with an overflow hole 409, which connects the inner cavity of the inner box 406 with the inner cavity of the outer box 401. When the return speed of the return pipe 300 is fast and too much volcanic ash accumulates in the inner box 406, the volcanic ash will overflow into the outer box 401 through the overflow hole 409, which can accelerate the flow speed of the volcanic ash and thus prevent the volcanic ash from overflowing to the outside of the cylinder 100.
[0040] Reference Figure 5 As shown, in some embodiments, the number of filter structures 400 is at least two. For example... Figure 1 As shown, during normal operation, the return pipe 300 only directs the volcanic ash back to one of the filter structures 400. When the filter structure 400 accumulates too much foreign matter and needs cleaning, such as Figure 2 As shown, remove it upwards, as... Figure 3 As shown, another filter structure 400 is then moved laterally below the return pipe 300, and the filtration function continues through this filter structure 400, so that the subsequent volcanic ash brushing process does not need to be interrupted. After the previous filter structure 400 is cleaned, it is put back into the feed inlet 102. One of these two filter structures 400 is used for main filtration, and the other can be understood as a backup replacement.
[0041] This utility model embodiment also provides a circuit board manufacturing equipment, including the volcanic ash recycling device 1000 described above. The circuit board manufacturing equipment can be understood as equipment that implements all circuit board manufacturing processes, and may include multiple modules or devices.
[0042] Examples of the embodiments described above are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described above with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.
[0043] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0044] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.
[0045] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0046] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A volcanic ash recycling device, characterized in that, include: The cylinder body has a receiving cavity and a feed inlet communicating with the receiving cavity, the receiving cavity being used to store volcanic ash; A stirring mechanism is used to stir the volcanic ash inside the containment cavity; A reflux device includes a reflux pipe, one end of which is located above the feed inlet to reflux used volcanic ash back to the feed inlet; A filter structure is placed at the feed inlet, and the filter structure is used to filter the volcanic ash flowing from the return pipe to the feed inlet.
2. The volcanic ash recycling device according to claim 1, characterized in that, The filter structure includes an outer box, with a first opening at the top of the outer box. A baffle is provided at the edge of the first opening, and the baffle overlaps the edge of the feed inlet. The bottom wall of the outer box is configured as a mesh structure.
3. The volcanic ash recycling device according to claim 2, characterized in that, The filter structure is provided with a handle, which is horizontally positioned and located at the first opening.
4. The volcanic ash recycling device according to claim 3, characterized in that, The filter structure also includes an inner box, which is located inside the outer box. The inner box has a second opening at its top, and a hook is provided at the edge of the second opening. The hook is attached to the handle. The bottom wall of the inner box is a mesh structure, and there is a gap between the bottom wall of the inner box and the bottom wall of the outer box.
5. The volcanic ash recycling device according to claim 4, characterized in that, The hook part has an L-shaped structure.
6. The volcanic ash recycling device according to claim 4, characterized in that, The inner box has an overflow hole on its side wall, which connects the inner cavity of the inner box with the inner cavity of the outer box.
7. The volcanic ash recycling device according to claim 1, characterized in that, The number of filter structures is at least two.
8. The volcanic ash recycling device according to claim 1, characterized in that, The feed inlet is rectangular, and the filter structure is a cuboid structure.
9. Circuit board manufacturing equipment, characterized in that, Includes the volcanic ash recycling device according to any one of claims 1 to 8.