Filter round bar screening device

Abstract

The present application belongs to the technical field of filter processing equipment, and particularly relates to a filter round strip screening device. In the present application, an inclined screening plate is arranged, screening grooves are formed in the screening plate, and adjustable screening holes one and two are arranged in the screening grooves. The screening hole one is used for dropping unqualified filter round strips, and the screening hole two is used for dropping qualified filter round strips. When the filter round strips are screened, the filter round strips are rolled down from above the screening plate. The filter round strips smaller than the minimum allowable tolerance in diameter are collected by falling from the screening hole one, the qualified filter round strips are collected by falling from the screening hole two, and the filter round strips larger than the maximum allowable tolerance in diameter are dropped from the end of the screening plate. The screening accuracy and efficiency can be effectively improved.

Description

Technical Field

[0001] This invention belongs to the technical field of filter processing equipment, and specifically relates to a filter round bar screening device. Background Technology

[0002] Optical filters are used to select the desired wavelength of radiation. A common characteristic of all filters is that no filter can make the image of a celestial object brighter, because all filters absorb certain wavelengths, thus making the object appear darker.

[0003] The design and manufacture of optical filters are based on optical principles, mainly including phenomena such as absorption, transmission, reflection, and interference. Depending on the required function of the filter, appropriate materials and structures can be selected to achieve selective processing of light of specific wavelengths.

[0004] Optical filters are materials used in mobile phone cameras or camera lenses, and filter strips are semi-finished products. Typically, semi-finished filters are first prepared, then micrometers are used to screen filter strips of suitable size for shipment or further processing into finished filters. However, conventional micrometer screening is inefficient, and manual operation introduces significant errors. The accuracy of micrometer measurements is also dependent on the user's skill level and operating technique; inexperienced users may introduce measurement errors, affecting measurement accuracy. Summary of the Invention

[0005] The purpose of this invention is to provide a filter circular strip screening device. By setting a screening plate and setting screening holes on the screening plate, the screening efficiency of filter circular strips can be improved and the quality can be guaranteed, thereby solving the problems in the prior art mentioned in the background art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] This invention proposes a filter circular strip screening device, comprising: a screening plate on which filter circular strips can roll, and both ends of the screening plate being open structures; an adjustable bracket connected to the bottom of the screening plate and capable of adjusting the longitudinal tilt angle of the screening plate; a screening groove formed on the top of the screening plate for screening filter circular strips; and an adjusting plate connected inside the screening groove and capable of position adjustment; wherein, the adjusting plate includes a first plate and a second plate; a first screening hole is provided between one end of the first plate and one end of the screening groove for unqualified filter circular strips to fall through, and a second screening hole is provided between one end of the second plate and the other end of the first plate for qualified filter circular strips to fall through; the width of the first screening hole is the same as the minimum allowable tolerance of the filter circular strip, and the first screening hole is located at the higher end of the screening plate; the width of the second screening hole is the same as the maximum allowable tolerance of the filter circular strip, and the second screening hole is located at the lower end of the screening plate; both the first and second screening holes are provided with arc-shaped receiving tubes at their bottoms.

[0008] Preferably, the screening plate includes: a base plate with a planar top; baffles connected to both sides of the base plate for blocking the filter strips; wherein the screening groove is formed on the base plate.

[0009] Preferably, the adjustable bracket includes: a base; a fixed support rod, the lower end of which is fixed to the top of the base and the upper end of which is rotatably connected to one bottom end of the base plate; an adjusting support rod, the upper end of which is rotatably connected to the other bottom end of the base plate and the lower end of which is movably connected to the top of the base; and adjusting grooves arranged on the top of the base to limit the position of the adjusting support rods.

[0010] Preferably, the screening groove has sliding grooves on both sides inside, and sliders 1 and 2 for supporting the first plate and the second plate are movably connected inside the sliding grooves; wherein slider 1 is fixed to the edge of the first plate and slider 2 is fixed to the edge of the second plate.

[0011] Preferably, both slider one and slider two are provided with a screening hole adjustment component.

[0012] Preferably, the screening hole adjustment assembly includes: a bearing seat mounted at one end of the slide groove; an adjusting screw rotatably mounted in the bearing seat via an optical axis; an adjusting screw hole formed on slider one and slider two, and threadedly connected to the adjusting screw; and a locking member disposed between the end of the adjusting screw and the slide groove for locking the adjusting screw; the adjusting screw includes screw one and screw two, screw two being screwed only to slider two and not extending to one of the sliders; screw one being screwed only to slider one, and screw one passing through slider two without contacting slider two.

[0013] Preferably, the locking component includes: an internal hexagon screw fixed to the end of the optical axis; a locking groove arranged circumferentially on the surface of the internal hexagon screw; and a locking block fitted into the locking groove and installed in a spring groove by a compression spring; wherein the spring groove is formed in a slide groove.

[0014] Preferably, the top of the locking block has an arc-shaped groove, and the inner side of the arc-shaped groove is provided with locking teeth that match the locking groove.

[0015] Preferably, the arc-shaped groove has positioning grooves on both sides that match the thickness of the internal hexagon screw.

[0016] Preferably, the screening groove is provided at one end near the screening hole one, both ends of plate one, and one end of plate two near the screening hole two, and a roller is rotatably installed inside the screening groove; wherein, the top plane of the screening plate, plate one, and plate two is tangent to the roller.

[0017] Technical effects and advantages of the present invention: The filter bar screening device proposed in this invention has the following advantages compared with the prior art:

[0018] (1) In this invention, an inclined screening plate is set up and a screening groove is opened on the screening plate. The screening groove is provided with an adjustable screening hole one and a screening hole two. The screening hole one is for unqualified filter round strips to fall, and the screening hole two is for qualified filter round strips to fall. When screening the filter round strips, the filter round strips are rolled down from the top of the screening plate. Filter round strips with a diameter smaller than the minimum allowable tolerance fall from the screening hole one and are collected. Qualified filter round strips fall through the screening hole two and are collected. Filter round strips with a diameter larger than the maximum allowable tolerance fall from the end of the screening plate. This can effectively improve the screening accuracy and screening efficiency.

[0019] (2) The present invention can adjust the screening hole one and screening hole two to a suitable size by adjusting the screw. The size of the device can be flexibly adjusted according to the filter round strip with different size requirements, so that the screening hole one and screening hole two meet the tolerance range of the filter round strip. The device is flexible and highly applicable. At the same time, the locking part of the present invention can lock the screw after the screw is adjusted, and fix the size. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural schematic diagram of a filter bar screening device according to the present invention;

[0021] Figure 2 This is a schematic diagram of the main structure of a filter bar screening device according to the present invention;

[0022] Figure 3 This is a schematic diagram of the adjustable bracket of the present invention;

[0023] Figure 4 This is a schematic diagram of the screening plate structure of the present invention;

[0024] Figure 5 This is a schematic diagram of the structure of the adjusting plate of the present invention;

[0025] Figure 6 This is a schematic cross-sectional view of the screening plate of the present invention;

[0026] Figure 7 This is a schematic diagram of the structure of plate one and plate two of the present invention;

[0027] Figure 8 This is a schematic diagram of the bearing housing structure of the present invention;

[0028] Figure 9 This is a schematic diagram of the locking component of the present invention;

[0029] Figure 10 This is a schematic diagram of the locking block of the present invention;

[0030] Figure 11 This is a schematic diagram of the mounting groove of the present invention;

[0031] Figure 12 This is a schematic diagram of the arc-shaped receiving tube of the present invention.

[0032] In the picture:

[0033] 1. Screening plate; 101. Base plate; 102. Baffle plate;

[0034] 2. Adjustable bracket; 201. Base; 202. Fixed support rod; 203. Adjustable support rod; 204. Adjustment groove;

[0035] 3. Screening groove; 301. Slide chute; 302. Slide 1; 303. Slide 2;

[0036] 4. Adjusting plate; 401. Plate 1; 402. Plate 2; 403. Screening hole 1; 404. Screening hole 2; 405. Mounting groove; 406. Roller shaft;

[0037] 5. Screening hole adjustment assembly; 501. Bearing seat; 502. Adjusting screw; 503. Adjusting screw hole; 504. Locking component; 505. Socket head screw; 506. Locking groove; 507. Locking block; 508. Compression spring; 509. Spring groove; 510. Arc groove; 511. Locking tooth; 512. Positioning groove;

[0038] 6. Arc-shaped receiving pipe. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The specific embodiments described herein are merely used to explain the present invention and are not intended to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] This invention provides a filter bar screening device, primarily designed to improve the screening quality and efficiency of filter bars. Furthermore, it is not only suitable for screening filter bars but also for screening other cylindrical products.

[0041] Please see Figure 1 and Figure 2 As shown, an embodiment of the present invention provides a filter circular strip screening device, comprising: a screening plate 1, an adjustable bracket 2, a screening groove 3, an adjustment plate 4, and an arc-shaped receiving pipe 6.

[0042] The screening plate 1 has a smooth surface, allowing the filter strips to roll on it. Both ends of the screening plate 1 are open, with the upper end for holding the filter strips and the lower end for them to fall. An adjustable bracket 2 is connected to the bottom of the screening plate 1 and can adjust the longitudinal tilt angle of the screening plate 1, allowing for adjustment of the drop height as needed to facilitate the rolling of the filter strips. A screening groove 3 is located at the top of the screening plate 1 for screening the filter strips. An adjusting plate 4 is connected inside the screening groove 3 and its position can be adjusted according to the actual screening diameter of the filter strips. An arc-shaped receiving pipe 6 is inclined at both ends of the bottom of the first plate 401, located below the first screening hole 403 and the second screening hole 404, for collecting the filter strips. Figure 12 As shown.

[0043] The specific structure and function of the screening plate 1, adjustable bracket 2, screening groove 3, and adjustment plate 4 will be described in detail below.

[0044] For example, such as Figure 4 As shown, the screening plate 1 includes a base plate 101 and a baffle 102. The top of the base plate 101 is a planar structure; the baffle 102 is connected to both sides of the base plate 101 and is used to block the filter strips.

[0045] Specifically, the base plate 101 is used for the rolling of the filter strip, and when the base plate 101 is tilted, the filter strip can roll from the upper end to the lower end. The baffle 102 is used to block the filter strip from falling off the side of the base plate 101.

[0046] Furthermore, the screening groove 3 is formed on the base plate 101, and the screening groove 3 is rectangular in shape to facilitate the arrangement of the adjustment plate 4.

[0047] For example, such as Figure 3 As shown, the adjustable bracket 2 includes: a base 201, a fixed support rod 202, an adjusting support rod 203, and an adjusting groove 204.

[0048] Specifically, the base 201 is a flat plate structure used to support the screening plate 1. Two sets of fixed support rods 202 are provided, both L-shaped, with their lower ends fixed to the top of the base 201 and their upper ends rotatably connected to one end of the bottom of the base plate 101. Adjustable support rods 203 are L-shaped, with their upper ends rotatably connected to the other end of the bottom of the base plate 101 and their lower ends movably connected to the top of the base 201. Adjustment slots 204 are arranged on the top of the base 201 and used to limit the position of the adjusting support rods 203. Multiple sets of adjustment slots 204 are provided, which can be selected according to actual needs.

[0049] When adjusting the tilt angle of the screening plate 1, simply insert the lower end of the adjusting rod 203 into the desired adjusting slot 204. The stability of the screening plate 1 when tilted is improved by the support of the fixed rod 202 and the adjusting rod 203.

[0050] For example, such as Figures 6-7 As shown, the screening tank 3 has sliding grooves 301 on both sides inside. The sliding grooves 301 are movably connected to sliders 302 and 303 for supporting the first plate 401 and the second plate 402. Slider 302 is fixed to the side of the first plate 401, and slider 303 is fixed to the side of the second plate 402.

[0051] Specifically, two sets of sliders 302 (represented as left slider 1 and right slider 1) are provided on both sides of plate 401 to improve the stability of plate 401 and facilitate the adjustment of its position. Furthermore, the threaded holes on slider 302 are only present on the left slider 1, not the right slider 1. Similarly, two sets of sliders 303 (represented as left slider 2 and right slider 2) are provided on both sides of plate 402, with the right slider 2 having a threaded hole and the left slider 2 having a through hole.

[0052] To facilitate the adjustment of the positions of plate 401 and plate 402, screening hole adjustment components 5 are provided on both slider 302 and slider 303, which can adjust the positions of plate 401 and plate 402 according to actual needs. The specific structure is described in detail below.

[0053] For example, such as Figures 8-10 As shown, the screening hole adjustment assembly 5 includes: a bearing seat 501, an adjusting screw 502, an adjusting screw hole 503, and a locking member 504.

[0054] The bearing housing 501 is installed at one end of the slide groove 301; the adjusting screw 502 is rotatably installed in the bearing housing 501 via an optical shaft; the adjusting screw hole 503 is opened on the first slider 302 and the second slider 303 (as described above) and is threadedly connected to the adjusting screw 502; the locking member 504 is provided between the end of the adjusting screw 502 and the slide groove 301 for locking the adjusting screw 502.

[0055] Specifically, as mentioned above, slider 1 302 and slider 2 303 are each equipped with an adjusting screw 502. For ease of understanding, the adjusting screw 502 on slider 1 302 is referred to as screw 1, and the adjusting screw 502 on slider 2 303 is referred to as screw 2.

[0056] When the adjusting plate is in position 401, rotating the screw drives the slider 302 to move, which in turn moves the plate 401, allowing the size of the screening hole 403 to be adjusted. While the screw is rotating, the locking component 504 locks it to prevent it from rotating randomly.

[0057] When adjusting the position of plate 2 402, rotating screw 2 drives slider 2 303 to move, thereby moving plate 2 402, which can adjust the size of screening hole 2 404. While the screw is rotating, locking part 504 locks it to prevent it from rotating randomly.

[0058] It is worth noting that the adjusting screw 502 includes screw one and screw two. Screw two is only screwed to slider two 303 and does not extend to slider one 302. Screw one is only screwed to slider one 302 and passes through slider two 303 without contacting slider two 303.

[0059] For example, as shown in the figure Figure 10 As shown, the locking component 504 includes: an internal hex screw 505, a locking groove 506, and a locking block 507.

[0060] The internal hexagon screw 505 is fixed to the end of the optical shaft for easy rotation with a hex wrench. Locking grooves 506 are arranged circumferentially on the surface of the internal hexagon screw 505, approximating a gear shape. A locking block 507 is fitted into the locking groove 506 and mounted in a spring groove 509 via a compression spring 508. The spring groove 509 is located within a sliding groove 301. An arc-shaped groove 510 is formed on the top of the locking block 507, and the inner side of the arc-shaped groove 510 has locking teeth 511 that match the locking groove 506.

[0061] Specifically, spring grooves 509 are formed on the upper and lower parts of the inner side of the slide groove 301, that is, two sets of locking elements 504 are provided to improve the locking effect. Spring grooves 509 also serve to limit the position of locking block 507, allowing only the locking block 507 to move up and down.

[0062] In addition, to further improve the locking effect, the arc-shaped groove 510 is provided with positioning grooves 512 on both sides that match the thickness of the internal hexagon screw 505.

[0063] like Figures 5-7 As shown, the adjusting plate 4 includes a first plate 401 and a second plate 402. A first screening hole 403 is provided between one end of the first plate 401 and one end of the screening groove 3, allowing unqualified filter strips to fall through. A second screening hole 404 is provided between one end of the second plate 402 and the other end of the first plate 401, allowing qualified filter strips to fall through. The widths of the first screening hole 403 and the second screening hole 404 can be adjusted according to actual needs, as described above.

[0064] Furthermore, the width of the first screening hole 403 is the same as the minimum allowable tolerance of the filter circle, and the first screening hole 403 is located at the higher end of the screening plate 1.

[0065] Furthermore, the width of the second screening hole 404 is the same as the maximum allowable tolerance of the filter circular strip, and the second screening hole 404 is located at the lower end of the screening plate 1.

[0066] Both the bottom of the first screening hole 403 and the second screening hole 404 are provided with an arc-shaped receiving pipe 6.

[0067] When screening filter bars, the steps are as follows: (1) When the filter bars pass through screening hole 403, filter bars smaller than the minimum allowable tolerance fall out and are collected through the arc-shaped receiving tube 6. (2) Filter bars larger than the minimum allowable tolerance but smaller than the maximum allowable tolerance fall out when passing through screening hole 404 and are collected through the arc-shaped receiving tube 6. (3) Filter bars larger than the maximum allowable tolerance fall out and are collected through the end of screening groove 3.

[0068] Furthermore, to improve the smoothness of the filter disc falling, mounting grooves 405 are provided at one end of the screening groove 3 near the first screening hole 403, at both ends of the first plate 401, and at one end of the second plate 402 near the second screening hole 404. A roller 406 is rotatably mounted inside the mounting groove 405. The roller 406 allows the first screening hole 403 and the second screening hole 404 to fall more smoothly. In addition, the top planes of the screening plates 1, 401, and 402 are tangent to the roller 406, that is, the four are kept on the same plane to facilitate better screening of the filter disc.

[0069] Specifically, when selecting filter bars, refer to the following steps:

[0070] Step 1: Adjust the width of filter hole 403 and filter hole 404 according to the screening requirements of the filter bar;

[0071] Step 2: Rotate the screw to move the slider 302, which in turn moves the plate 401. This allows for adjustment of the size of the screening hole 403 to meet the minimum allowable tolerance of the filter disc.

[0072] Step 3: Rotate screw 2 to move slider 2 303, thereby moving plate 2 402. The size of the screening hole 2 404 can be adjusted to meet the maximum allowable tolerance of the filter disc.

[0073] Step 4: Insert the lower end of the adjusting rod 203 into the required adjusting slot 204 to adjust the tilt angle of the screening plate 1;

[0074] Step 5: Place the filter strip at the higher end of the screening plate 1. The filter strip rolls downwards. As it passes through screening hole 403, filter strips smaller than the minimum allowable tolerance fall out and are collected via the arc-shaped receiving pipe 6. Filter strips larger than the minimum allowable tolerance but smaller than the maximum allowable tolerance fall out as they pass through screening hole 404 and are collected via the arc-shaped receiving pipe 6. Filter strips larger than the maximum allowable tolerance fall and are collected at the end of the screening groove 3, effectively improving screening accuracy and efficiency.

[0075] In other embodiments, a filter disc screening device may not include the adjusting plate 4 and the arc-shaped receiving pipe 6. It may consist only of the screening plate 1, the adjustable bracket 2, and the screening groove 3, with the screening groove 3 divided into two groups that meet the maximum and minimum permissible tolerances of the filter disc discs.

[0076] In other embodiments, a filter bar screening device may not include an adjustable support 2. The tilt angle of the screening plate 1 can be determined using a fixed support, which is configured via the screening plate 1 and the screening groove 3.

[0077] In other embodiments, the roller 406 may not be provided at one end of the screening groove 3 near the first screening hole 403, both ends of the first plate 401, and one end of the second plate 402 near the second screening hole 404. The end of the screening groove 3 near the first screening hole 403, both ends of the first plate 401, and one end of the second plate 402 near the second screening hole 404 may be provided with an arc-shaped chamfered structure.

[0078] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A filter bar screening device, characterized in that, include: A screening plate, on which filter bars can roll, and the two ends of the screening plate are set to an open structure; An adjustable bracket connected to the bottom of the screening plate and capable of adjusting the longitudinal tilt angle of the screening plate; A screening groove is formed at the top of the screening plate for screening filter discs; and An adjustment plate connected inside the screening tank and capable of being positioned. The adjusting plate includes a plate one and a plate two; a screening hole one is formed between one end of the plate one and one end of the screening groove for unqualified filter strips to fall through, and a screening hole two is formed between one end of the plate two and the other end of the plate one for qualified filter strips to fall through. The width of the first screening hole is the same as the minimum allowable tolerance of the filter bar, and the first screening hole is located at the higher end of the screening plate. The width of the second screening hole is the same as the maximum allowable tolerance of the filter disc strip, and the second screening hole is located at the lower end of the screening plate; Both the bottom of screening hole one and screening hole two are provided with arc-shaped receiving pipes; The screening tank has sliding grooves on both sides inside, and sliders 1 and 2 for supporting the first plate and the second plate are movably connected inside the sliding grooves. Among them, slider one is fixed to the edge of plate one, and slider two is fixed to the edge of plate two; Both slider one and slider two are equipped with a screening hole adjustment component; The filter hole adjustment component includes: The bearing housing is installed at one end of the slide groove; The adjusting screw is mounted in the bearing housing via a rotating optical axis. An adjusting screw hole is provided on slider one and slider two and is threadedly connected to the adjusting screw. A locking element is provided between the end of the adjusting screw and the slide groove to lock the adjusting screw. The adjusting screw includes screw one and screw two. Screw two is screwed only to slider two and does not extend to one part of slider two. Screw one is screwed only to slider one and passes through slider two without contacting slider two. The locking element includes: The internal hex screw is used to fix the end of the optical axis; Locking grooves are arranged in a circular pattern on the surface of the internal hexagon screw; A locking block, which fits into the locking groove and is installed in the spring groove by a compression spring; The spring groove is formed in the slide groove; The top of the locking block has an arc-shaped groove, and the inner side of the arc-shaped groove is provided with locking teeth that match the locking groove; The arc-shaped groove has positioning grooves on both sides that match the thickness of the internal hexagon screw; The screening tank has mounting grooves at one end near the screening hole one, at both ends of plate one, and at one end of plate two near the screening hole two. A roller is rotatably installed inside the mounting groove. Among them, the top planes of the screening plate, plate one and plate two are tangent to the roller shaft.

2. The filter bar screening device according to claim 1, characterized in that, The screening plate includes: The base plate has a flat top structure. Baffles connected to both sides of the base plate to block the filter strips; The screening slot is located on the base plate.

3. The filter bar screening device according to claim 1, characterized in that, The adjustable bracket includes: Base; A fixed support rod is provided, with its lower end fixed to the top of the base and its upper end rotatably connected to one end of the bottom of the base plate. The upper end of the adjusting support rod is rotatably connected to the bottom of the base plate, and the lower end of the adjusting support rod is movably connected to the top of the base. Adjustment grooves are arranged on the top of the base and are used to limit the position of the adjustment rod.

Images