Filtering structure for electronic paste production

Abstract

The utility model provides a filter structure for producing electronic paste, which comprises a filter cartridge and a material containing barrel, the filter cartridge is fixedly connected to the upper end face of the material containing barrel, the filter structure also comprises a filter component I and a filter component II, the filter component I and the filter component II are both movably connected with the filter cartridge through springs, and the filter component I and the filter component II are arranged in the material containing barrel. The first filtering assembly is located above the second filtering assembly, a stirring assembly is inserted between the first filtering assembly and the second filtering assembly in a penetrating mode, the stirring assembly periodically applies acting force which slides back and forth along the inner side wall of the filtering cylinder to the first filtering assembly, and the first stirring assembly drives the second stirring assembly to synchronously move through a connecting piece; the first filtering assembly and the second filtering assembly are driven by the stirring assembly to periodically ascend and descend, so that the springs are periodically switched between the contraction state and the stretching state, the springs are kept in the active state all the time and keep good elasticity, the situation that the springs are prone to being damaged due to creep deformation of the springs is avoided, and the service life of the springs is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of electronic paste filtration technology, and in particular to a filtration structure for electronic paste production. Background Technology

[0002] Electronic paste is a liquid or paste material containing metal or metal oxide particles. It is a basic material for manufacturing thick film components and is widely used in key electronic components, photovoltaics / new energy, new displays, microelectronic packaging and other fields, playing an important role in the miniaturization of microelectronic devices.

[0003] A patent with publication number CN218221385U discloses a filtration device for electronic paste, including a filter cylinder. Multiple fixed plates are fixedly connected to the inner wall of the filter cylinder, and slide rods are inserted into each of the fixed plates. The tops of the slide rods are fixedly connected to an electromagnetic vibrator, which houses a filter plate. Buffer springs are nested around the slide rods between the electromagnetic vibrator and the fixed plates. Multiple buffer springs are used to prevent damage or loosening at the connection between the electromagnetic vibrator and the filter cylinder due to long-term vibration. Although multiple buffer springs prevent direct contact between the electromagnetic vibrator and the filter cylinder, during long-term use, the gravity of the electronic paste constantly exerts downward pressure on the filter plate, causing the buffer springs to remain compressed. Prolonged compression of the buffer springs leads to creep, weakening their strength and reducing their elasticity. This results in ineffective buffering and is not conducive to long-term use, requiring frequent spring replacement.

[0004] Therefore, it is necessary to provide a new filtration structure for electronic paste production to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a filter structure for electronic paste production.

[0006] The filtration structure for electronic paste production provided by this utility model includes: a filter cylinder and a material holding tank. The filter cylinder is fixedly connected to the upper end face of the material holding tank. It also includes a filter component one and a filter component two. Both filter component one and filter component two are movably connected to the filter cylinder by springs. Filter component one is located above filter component two. A stirring component is inserted between filter component one and filter component two. The stirring component periodically applies an upward force to filter component one, driving filter component one to slide back and forth along the inner side wall of the filter cylinder. Filter component one drives filter component two to move synchronously through a connecting piece.

[0007] Preferably, the first filter assembly includes an electromagnetic vibrator, the sidewall of which is fitted to the inner sidewall of the filter cylinder, a filter plate is inserted inside the electromagnetic vibrator, and a plurality of connectors are fixedly connected to the bottom end of the electromagnetic vibrator. The plurality of connectors pass through a fixing block, and a spring is nested near the electromagnetic vibrator of each of the plurality of connectors. The top end of the spring is fixedly connected to the bottom end of the electromagnetic vibrator and the bottom end of the spring is fixedly connected to the top end of the fixing block.

[0008] Preferably, the second filter assembly includes a mounting frame, the outer wall of which is fitted to the inner wall of the filter cylinder, a second filter plate is inserted inside the mounting frame, and multiple connectors pass through the mounting frame.

[0009] Preferably, the filter cartridge sidewall is fixedly connected to a plurality of fixing blocks 2, all of which are located below the mounting frame, and a plurality of connectors pass through the plurality of fixing blocks 2 respectively. The bottom ends of the plurality of connectors are fixedly connected to limit plates, and springs are fixedly connected between the top ends of the plurality of fixing blocks 2 and the mounting frame.

[0010] Preferably, both the first filter plate and the second filter plate are concave in design, and both the first filter plate and the second filter plate are provided with filter holes. The diameter of the filter holes in the first filter plate is larger than that in the second filter plate.

[0011] Preferably, the stirring assembly includes a rotating rod that passes through the outer wall of the material container, and the distance from the rotating rod to the bottom end of the first filter plate is less than the distance to the bottom end of the second filter plate. A drive motor for driving the rotating rod to rotate is detachably connected to the outer wall of the material container, and a scraper is nested outside the rotating rod.

[0012] Preferably, a cleaning component is rotatably connected to the bottom wall of the material container, and the side wall of the cleaning component is in contact with the side wall of the material container.

[0013] Preferably, the connector includes a connecting rod, which is detachably connected to the bottom of the electromagnetic vibrator. The connecting rod is fixedly connected to the mounting frame and passes through fixing block one and fixing block two.

[0014] Preferably, the scraper sidewall is semi-elliptical, and the scraper is in contact with the inner sidewall of the filter plate.

[0015] Compared with related technologies, the filter structure for electronic paste production provided by this utility model has the following beneficial effects:

[0016] 1. This utility model provides a filter structure for electronic paste production. In specific implementation, the stirring component drives the filter component one to perform periodic lifting and lowering, and the filter component one drives the filter component two to perform synchronous movement, so that the spring periodically switches between the contracted state and the stretched state, keeping the spring in an active state, thus maintaining the spring's good elasticity, avoiding the spring from being easily damaged due to spring creep, and extending the spring's service life.

[0017] 2. The electronic slurry between filter assembly one and filter assembly two is stirred by the stirring component, thereby accelerating the flow rate of the electronic slurry and improving the filtration efficiency.

[0018] 3. The scraper plate 1 is attached to the inner wall of the filter plate 2. When the scraper plate 1 scrapes over the inner wall of the filter plate 2, it will remove the impurities on the inner wall of the filter plate 2, thereby preventing the impurities from clogging the filter holes in the filter plate 2, thus extending the service life of the filter plate 2 and eliminating the need for frequent cleaning and replacement of the filter plate 2. Attached Figure Description

[0019] Figure 1 A cross-sectional schematic diagram of the filter structure for electronic paste production provided by this utility model;

[0020] Figure 2 A schematic diagram of the overall structure of the filter structure for electronic paste production provided by this utility model;

[0021] Figure 3 A partial structural diagram of the filter structure for electronic paste production provided by this utility model.

[0022] The following are the labels in the diagram: 1. Filter cylinder; 2. Material container; 3. Filter assembly one; 31. Electromagnetic vibrator; 32. Filter plate one; 4. Filter assembly two; 41. Mounting frame; 42. Filter plate two; 5. Stirring assembly; 51. Rotating rod; 52. Drive motor one; 53. Scraper one; 6. Connecting rod; 7. Spring; 8. Fixing block one; 9. Fixing block two; 10. Cleaning assembly; 101. Drive motor two; 102. Scraper two; 11. Discharge port; 12. Feed funnel. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and implementation examples.

[0024] Please refer to Figure 1 — Figure 3 ,in, Figure 1 A cross-sectional schematic diagram of the filter structure for electronic paste production provided by this utility model; Figure 2 A schematic diagram of the overall structure of the filter structure for electronic paste production provided by this utility model; Figure 3A partial structural diagram of the filter structure for electronic paste production provided by this utility model.

[0025] In specific implementation, a filter structure for electronic paste production has the following structure: Figure 1 — Figure 3 As shown, it includes: a filter cylinder 1 and a material container 2. The filter cylinder 1 is fixedly connected to the upper end face of the material container 2. It also includes a first filter assembly 3 and a second filter assembly 4. Both the first filter assembly 3 and the second filter assembly 4 are movably connected to the inner wall of the filter cylinder 1, and the first filter assembly 3 is located above the second filter assembly 4. A stirring assembly 5 is inserted between the first filter assembly 3 and the second filter assembly 4. The stirring assembly 5 periodically applies an upward force to the first filter assembly 3, driving the first filter assembly 3 to slide back and forth along the inner wall of the filter cylinder 1. The first filter assembly 3 drives the second filter assembly 4 to move synchronously through a connecting piece.

[0026] like Figure 3 As shown, the filter assembly 3 includes an electromagnetic vibrator 31. The side wall of the electromagnetic vibrator 31 is attached to the inner side wall of the filter cylinder 1. A filter plate 32 is inserted inside the electromagnetic vibrator 31. Multiple connectors are fixedly connected to the bottom of the electromagnetic vibrator 31. The multiple connectors pass through the fixing block 8. A spring 7 is nested near the electromagnetic vibrator 31 of each of the multiple connectors. The top of the spring 7 is fixedly connected to the bottom of the electromagnetic vibrator 31. The bottom of the spring 7 is fixedly connected to the top of the fixing block 8.

[0027] It should be noted that the electromagnetic vibrator 31 drives the filter plate 32 to vibrate, thereby keeping the electronic paste in an active state, which accelerates the flow rate of the electronic paste and improves the filtration efficiency.

[0028] like Figure 3 As shown, the filter assembly 2 4 includes a mounting frame 41, the outer wall of the mounting frame 41 is attached to the inner wall of the filter cylinder 1, the filter plate 2 42 is inserted inside the mounting frame 41, and multiple connectors pass through the mounting frame 41.

[0029] Multiple fixing blocks 2 9 are fixedly connected to the side wall of the filter cartridge 1. The multiple fixing blocks 2 9 are all located below the mounting frame 41, and multiple connectors pass through the multiple fixing blocks 2 9 respectively. Limit plates are fixedly connected to the bottom of the multiple connectors. Springs 7 are fixedly connected between the top of the multiple fixing blocks 2 9 and the mounting frame 41.

[0030] It should be noted that during the filtration process, the electromagnetic vibrator 31 and the fixing block 8 compress the spring 7 due to the gravity of the electronic slurry, and the mounting frame 41 and the fixing block 9 compress the spring 7, thereby putting the spring 7 in a contracted state. At the same time, the spring 7 moderates the vibration generated by the electronic vibrator, preventing the electromagnetic vibrator 31 from vibrating violently and causing instability in the connection between the electromagnetic vibrator 31 and the connecting rod 6.

[0031] like Figure 3 As shown, both filter plate 32 and filter plate 42 are concave in design, and both filter plate 32 and filter plate 42 are provided with filter holes. The diameter of the filter hole in filter plate 32 is larger than that in filter plate 42.

[0032] It should be noted that the filter holes in filter plate 32 have a larger diameter, which allows for the initial filtration of large particles of impurities. The filter holes in filter plate 42 have a smaller diameter, which allows for further filtration of the electronic paste, removing smaller particles of impurities. At the same time, both filter plate 32 and filter plate 42 have a concave design, which increases the contact area between the electronic paste and filter plate 32 or filter plate 42, thereby improving the filtration efficiency of the electronic paste.

[0033] like Figure 3 As shown, the stirring assembly 5 includes a rotating rod 51 that passes through the outer wall of the holding tank 2. The distance from the rotating rod 51 to the bottom of the first filter plate 32 is less than the distance to the bottom of the second filter plate 42. The outer wall of the holding tank 2 is detachably connected to a drive motor 52 that drives the rotating rod 51 to rotate. A scraper 53 is nested outside the rotating rod 51. The side wall of the scraper 53 is semi-elliptical and fits against the inner side wall of the second filter plate 42.

[0034] It should be noted that, since the distance from the rotating rod 51 to the bottom of the first filter plate 32 is less than the distance to the bottom of the second filter plate 42, when the drive motor drives the rotating rod 51 to rotate, since the scraper 53 is in contact with the inner wall of the second filter plate 42, when the scraper 53 rotates to contact the first filter plate 32, the scraper 53 will apply an upward force to the first filter plate 32, thereby causing the first filter plate 32 to slide upward along the inner wall of the filter cylinder 1. The first filter plate 32 will then drive the second filter plate 42 to move synchronously through the connecting rod 6, thereby causing the spring 7 to lose the pressure of the electromagnetic vibrator 31 or the mounting frame 41 and to be stretched upward with the electromagnetic vibrator 31 or the mounting frame 41. This keeps the spring 7 in an active state that is always in a state of periodic switching between compression and tension, preventing the spring 7 from creeping due to being in a compressed state for a long time.

[0035] like Figure 3 As shown, the rotating rod 51 drives the scraper 53 to scrape the impurities on the inner wall of the filter plate 42, thereby preventing the impurities from clogging the small-diameter filter holes. At the same time, the scraper 53 also stirs the electronic paste between the filter plate 32 and the filter plate 42, thereby accelerating the flow rate of the electronic paste and increasing the filtration speed.

[0036] like Figure 2As shown, a cleaning component 10 is rotatably connected to the bottom wall of the material container 2. The side wall of the cleaning component 10 is in contact with the side wall of the material container 2. The cleaning component 10 includes a second drive motor 101, which is bolted to the bottom end of the material container 2. A scraper 102 is bolted to the output end of the second drive motor 101. The side wall of the scraper 102 is in contact with the inner side wall of the material container 2, and multiple through grooves are provided in the scraper 102. A discharge port 11 is provided at the bottom end of the material container 2.

[0037] It should be noted that by driving the scraper 102 to rotate via the drive motor 2 101, the electronic paste adhering to the inner wall of the material container 2 can be scraped off. Furthermore, the scraper 102 drives the electronic paste to rotate, which increases the flow rate of the electronic paste and accelerates the speed at which the electronic paste flows out of the outlet 11.

[0038] The connector includes a connecting rod 6, which passes through the fixing block 8 and the fixing block 9 in sequence.

[0039] The working principle of this utility model is as follows: Since the distance from the rotating rod 51 to the bottom end of filter plate 32 is less than the distance to the bottom end of filter plate 42, when the drive motor drives the rotating rod 51 to rotate, because scraper 53 is in contact with the inner wall of filter plate 42, when scraper 53 rotates to contact filter plate 32, scraper 53 will apply an upward force to filter plate 32, thereby causing filter plate 32 to slide upward along the inner wall of filter cylinder 1. Filter plate 32 will then drive filter plate 42 to move synchronously through connecting rod 6, thereby causing spring 7 to lose the pressure of electromagnetic vibrator 31 or mounting frame 41 and be stretched upward with electromagnetic vibrator 31 or mounting frame 41. This keeps spring 7 in an active state that is constantly switching between compression and tension, preventing spring 7 from creeping due to prolonged compression.

[0040] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0041] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A filter structure for electronic paste production, comprising a filter cylinder (1) and a material container (2), wherein the filter cylinder (1) is fixedly connected to the upper end face of the material container (2), characterized in that, It also includes filter assembly one (3) and filter assembly two (4). Filter assembly one (3) and filter assembly two (4) are movably connected to filter cylinder (1) by spring (7). Filter assembly one (3) is located above filter assembly two (4). A stirring assembly (5) is inserted between filter assembly one (3) and filter assembly two (4) to drive filter assembly one (3) to reciprocate periodically along the inner wall of filter cylinder. Filter assembly one (3) drives filter assembly two (4) to move synchronously through a connector.

2. The filter structure for electronic paste production according to claim 1, characterized in that, The filter assembly (3) includes an electromagnetic vibrator (31), the side wall of which is attached to the inner side wall of the filter cylinder (1), a filter plate (32) is inserted inside the electromagnetic vibrator (31), and multiple connectors are fixedly connected to the bottom of the electromagnetic vibrator (31). The multiple connectors pass through the fixing block (8) respectively. A spring (7) is nested near the electromagnetic vibrator (31) of each of the multiple connectors. The top end of the spring (7) is fixedly connected to the bottom end of the electromagnetic vibrator (31), and the bottom end of the spring (7) is fixedly connected to the top end of the fixing block (8).

3. The filter structure for electronic paste production according to claim 2, characterized in that, The second filter assembly (4) includes a mounting frame (41), the outer wall of the mounting frame (41) is fitted with the inner wall of the filter cylinder (1), a second filter plate (42) is inserted inside the mounting frame (41), and multiple connectors pass through the mounting frame (41).

4. The filter structure for electronic paste production according to claim 3, characterized in that, The filter cylinder (1) has multiple fixing blocks (9) fixedly connected to its side wall. The multiple fixing blocks (9) are located below the mounting frame (41), and multiple connectors pass through the multiple fixing blocks (9). The bottom ends of the multiple connectors are fixedly connected to limit plates, and the top ends of the multiple fixing blocks (9) are fixedly connected to the mounting frame (41) with springs (7).

5. The filter structure for electronic paste production according to claim 4, characterized in that, Both the filter plate one (32) and the filter plate two (42) are concave in design, and both the filter plate one (32) and the filter plate two (42) have filter holes. The diameter of the filter hole in the filter plate one (32) is larger than that in the filter plate two (42).

6. The filter structure for electronic paste production according to claim 5, characterized in that, The stirring assembly (5) includes a rotating rod (51) that passes through the outer wall of the material container (2), and the distance from the rotating rod (51) to the bottom of the first filter plate (32) is less than the distance to the bottom of the second filter plate (42). The outer wall of the material container (2) is detachably connected to a drive motor (52) that drives the rotating rod (51) to rotate, and a scraper (53) is nested outside the rotating rod (51).

7. The filter structure for electronic paste production according to claim 6, characterized in that, The bottom wall of the container (2) is rotatably connected to a cleaning component (10), and the side wall of the cleaning component (10) is in contact with the side wall of the container (2).

8. The filter structure for electronic paste production according to claim 7, characterized in that, The connector includes a connecting rod (6), which is detachably connected to the bottom of the electromagnetic vibrator (31). The connecting rod (6) is fixedly connected to the mounting frame (41), and the connecting rod (6) passes through the fixing block one (8) and the fixing block two (9).

9. The filter structure for electronic paste production according to claim 8, characterized in that, The scraper sidewall is semi-elliptical, and the scraper is attached to the inner sidewall of filter plate two (42).

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