Special jig for beating white strip of filter

By designing a special fixture for marking white strips on filters, the problems of low processing efficiency and inaccurate positioning of white strips were solved, achieving efficient positioning and uniform appearance, and reducing costs.

CN223794440UActive Publication Date: 2026-01-13DONGGUAN HELSHA FILTER CO LTD
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Patent Information

Application Number
CN202520550685.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-26
Publication Date
2026-01-13
Estimated Expiration
2035-03-26

AI Technical Summary

Technical Problem

The existing filter strip processing is inefficient, results in significant material waste, and inaccurate placement affects the uniformity of the product's appearance.

Method used

Design a special fixture for marking white stripes on filters. The fixture uses a longitudinal positioning plate and a transverse positioning plate to form a filter element positioning angle. Combined with the white strip slot and the edge notch, it can achieve precise positioning and fixation of the white strip.

Benefits of technology

It improves the efficiency of white strip processing and pasting, reduces material waste, ensures product appearance uniformity and aesthetics, and reduces labor and material costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of filter production tools, and particularly discloses a special jig for beating a white strip of a filter. The filter element positioning device comprises a base, a longitudinal positioning plate arranged on the base and a transverse positioning plate arranged on the base, the longitudinal positioning plate and the transverse positioning plate intersect to form a filter element positioning angle, and a white strip clamping groove for containing a white strip is formed in the surface of the base. And the longitudinal positioning plate is provided with a welt notch corresponding to the end part of the white strip clamping groove. The longitudinal positioning plate and the transverse positioning plate intersect to form a filter element positioning angle, so that the positioning of a filter element product is realized, the white strip is fixed at the same position of the filter element, and the appearance of the product is uniform and attractive; the white strip can be positioned through the white strip clamping groove of the base, and the white strip can be accurately attached to a filter element of the filter; by using the jig, a white strip edge shearing procedure can be omitted, the labor cost and the material cost are reduced, and the white strip pasting efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the technical field of filter production tools, and specifically discloses a special fixture for marking white stripes on filters. Background Technology

[0002] Filter cartridges typically consist of a frame and pleated filter paper set within the frame. To improve the structural robustness of filter products and prevent deformation, existing filter cartridges often have a white strip attached to the center as a support structure. However, there are some problems with the current technology that urgently need to be solved in the processing and attachment of this white strip.

[0003] First, current white strip processing typically involves cutting the material to a size larger than the product width to allow for hand-pinching of the strip before it's adhered to the filter surface. This method is not only inefficient, but also requires trimming off the excess after application, increasing manual complexity and wasting material. Second, positioning the white strip during application is difficult, leading to inconsistent strip placement across batches and affecting product uniformity and aesthetics. Utility Model Content

[0004] To address the aforementioned issues, this utility model provides a special fixture for attaching white strips to filters, aiming to improve the efficiency of white strip processing and pasting, reduce material waste, and ensure the accuracy of white strip pasting positions, thereby improving the appearance quality of products and production efficiency.

[0005] This utility model discloses a special fixture for marking white lines on filters, which adopts the following technical solution:

[0006] A special fixture for marking white stripes on filters includes: a base, a longitudinal positioning plate disposed on the base, and a transverse positioning plate disposed on the base. The longitudinal positioning plate and the transverse positioning plate intersect to form a filter positioning angle. The surface of the base is provided with a white strip slot for placing white strips, and the longitudinal positioning plate is provided with an edge notch corresponding to the end of the white strip slot.

[0007] Another alternative is a special fixture for marking white lines on filters, which includes: a base, at least two parallel longitudinal positioning plates disposed on the base, and a transverse positioning plate disposed on the base. The longitudinal positioning plates and the transverse positioning plates intersect to form a filter positioning angle. Both longitudinal positioning plates are provided with edge notches, and the edge notches of the two longitudinal positioning plates are disposed on the same straight line.

[0008] Preferably, the longitudinal positioning plate and the transverse positioning plate are detachable from the base.

[0009] Preferably, the longitudinal positioning plate is provided with a mounting groove, and the transverse positioning plate is provided with a mounting block that matches and inserts into the mounting groove.

[0010] Preferably, the mounting groove is provided on the side of the longitudinal positioning plate facing the base, and the mounting block of the transverse positioning plate is inserted between the longitudinal positioning plate and the base.

[0011] Preferably, the longitudinal positioning plate is provided with a positioning groove communicating with the mounting groove, and a fixing member is provided on the positioning groove to press the transverse positioning plate against the base.

[0012] Preferably, the longitudinal positioning plate is connected to the base by adhesive or snap-fit.

[0013] Preferably, the base is provided with at least two support bosses, and the white strip slot is formed between the two support bosses.

[0014] Preferably, the supporting boss forms a product slot with the longitudinal positioning plate and the transverse positioning plate.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects:

[0016] 1. By setting the vertical positioning plate and the horizontal positioning plate to form the filter element positioning angle design, the filter element product can be positioned, and the white strip position can be fixed in the same position of the filter element, resulting in a uniform and beautiful product appearance;

[0017] 2. The white strip slot design on the base serves to position the white strip, ensuring that it is accurately attached to the filter element of the filter.

[0018] 3. By using a jig, the trimming process of the white strip can be eliminated, reducing labor and material costs and improving the efficiency of applying the white strip. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the filter element structure of an existing filter.

[0020] Figure 2 This is a schematic diagram of the special fixture for marking white lines on filters in Example 1;

[0021] Figure 3 This is a schematic diagram showing the usage status of the special fixture for marking white lines on the filter in Example 1;

[0022] Figure 4 This is a schematic diagram of the special fixture for marking white lines on the filter in Example 2.

[0023] Explanation of icon numbers:

[0024] 1. Filter element; 11. Frame; 12. Folded filter paper; 2. Base; 21. White strip slot; 22. Support boss; 23. Product slot; 3. Vertical positioning plate; 31. Edge notch; 32. Installation groove; 33. Positioning groove; 4. Horizontal positioning plate; 41. Installation block. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] Example 1

[0027] Reference Figure 1 The filter element 1 of the filter includes a frame 11 and folded filter paper 12 disposed within the frame 11. To improve the structural robustness of the filter element and prevent deformation, existing filter elements have a white strip attached to the middle as a support structure. To solve the problems of low processing efficiency and high material consumption in attaching white strips to existing filter elements, this embodiment discloses a special fixture for attaching white strips to filters, referring to... Figure 2 It includes a base 2, a longitudinal positioning plate 3 set on the base 2, and a transverse positioning plate 4 set on the base 2. The longitudinal positioning plate 3 and the transverse positioning plate 4 intersect to form a filter element positioning angle. In addition, the surface of the base 2 is provided with a white strip slot 21 for placing the white strip, and the longitudinal positioning plate 3 is provided with an edge notch 31 corresponding to the end of the white strip slot 21.

[0028] By setting a base 2 with a white strip slot 21, the white strip can be pre-placed on the base 2 and glued. By setting the longitudinal positioning plate 3 and the transverse positioning plate 4 to intersect and form a filter element positioning angle, the filter element is positioned relative to the white strip on the base 2, so that the white strip is fixed in the same position on the filter element 1, and the appearance of the batch products is uniform. The edge notch 31 is just enough to expose both ends of the white strip for pasting the white strip to the side of the frame 11 of the filter element 1, thus completing the process of stably pasting and fixing the white strip to the surface of the filter element.

[0029] In this embodiment, there are two longitudinal positioning plates 3 and one transverse positioning plate 4, which allows for better positioning of the filter element, such as... Figure 3 Some irregularly shaped filter elements with slanted tops can be positioned laterally using the longitudinal positioning plates 3 on the left and right sides, and positioned longitudinally using the filter element positioning angle at the upper left corner. Of course, a single longitudinal positioning plate 3 and a single transverse positioning plate 4 can also achieve the positioning effect of the filter element.

[0030] As a preferred embodiment, the longitudinal positioning plate 3 and the transverse positioning plate 4 are detachable from the base 2, making them suitable for positioning and attaching white strips to filter cartridges 1 of different sizes. Specifically, the longitudinal positioning plate 3 has a mounting groove 32, and the transverse positioning plate 4 has a mounting block 41 that matches and inserts into the mounting groove 32. The longitudinal positioning plate 3 is connected to the base 2 with adhesive, or it can be connected to the base 2 by snap-fit. In use, the longitudinal positioning plate 3 can be glued and fixed to the base 2 first, and then the transverse positioning plate 4 can be inserted and assembled with the longitudinal positioning plate 3. More preferably, the mounting groove 32 is located on the side of the longitudinal positioning plate 3 facing the base 2, and the mounting block 41 of the transverse positioning plate 4 is inserted between the longitudinal positioning plate 3 and the base 2. This shape is easier to manufacture as a fixture. In addition, the longitudinal positioning plate 3 is provided with a positioning groove 33 that communicates with the mounting groove 32. The positioning groove 33 is provided with a fixing member to press the transverse positioning plate 4 against the base 2, so that the transverse positioning plate 4 can be moved to a suitable position in the longitudinal direction and then fixed by the fixing member, so as to make more convenient adaptive adjustments according to product specifications.

[0031] As a preferred embodiment, the base 2 is provided with at least two supporting bosses 22, and a white strip slot 21 is formed between the two supporting bosses 22. In addition, a product slot 23 is formed between the supporting bosses 22 and the longitudinal positioning plate 3 and the transverse positioning plate 4. Since the outer frame 11 of the filter element 1 is slightly larger in the thickness direction than the inner folded filter paper 12, the frame 11 can be positioned through the product slot 23 to achieve a better positioning effect for the filter element 1. When processing the filter element 1 with white strips, the white strips are first cut into 220*13mm specifications. Then, the cut white strip specifications are placed in the white strip slot 21 of the fixture. The depth of the white strip slot 21 is about 1mm. Glue is applied to the white strips using a three-axis dispensing machine. Finally, the assembled filter element is pushed along the fixture to the filter element positioning corner, that is, it is inserted into the product slot 23 of the fixture to position the filter element 1. The white strip is then attached to the filter element 1, thus completing the white strip application process.

[0032] Example 2

[0033] This embodiment discloses a special fixture for marking white lines on filters, which differs from Embodiment 1 in that, referring to... Figure 4 At least two longitudinal positioning plates 3 are provided, and each longitudinal positioning plate 3 has an edge notch 31. The edge notches 31 of the two longitudinal positioning plates 3 are arranged on the same straight line. By adopting the above design, the two ends of the white strip can be positioned in the two edge notches 31 through the edge notches 31, thereby realizing the positioning of the white strip. In this way, the surface of the base 2 does not need to have a white strip slot 21, which further simplifies the fixture structure and makes the fixture easier to manufacture.

[0034] The technical solution provided by this utility model has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A special fixture for marking white lines on filters, characterized in that, include: The base, a longitudinal positioning plate disposed on the base, and a transverse positioning plate disposed on the base, wherein the longitudinal positioning plate and the transverse positioning plate intersect to form a filter element positioning angle, the surface of the base is provided with a white strip slot for placing the white strip, and the longitudinal positioning plate is provided with an edge notch corresponding to the end of the white strip slot.

2. The special fixture for marking white lines on filters according to claim 1, characterized in that, The base is provided with at least two support protrusions, and the white strip slot is formed between the two support protrusions.

3. The special fixture for marking white lines on filters according to claim 2, characterized in that, The supporting boss forms a product slot with the longitudinal positioning plate and the transverse positioning plate.

4. A special fixture for marking white lines on filters, characterized in that, include: The base, at least two parallel longitudinal positioning plates disposed on the base, and a transverse positioning plate disposed on the base, wherein the longitudinal positioning plates and the transverse positioning plates intersect to form a filter element positioning angle, and both longitudinal positioning plates are provided with edge notches, the edge notches of the two longitudinal positioning plates being disposed on the same straight line.

5. The special fixture for marking white lines on filters according to claim 1 or 4, characterized in that, The longitudinal positioning plate and the transverse positioning plate are detachable from the base.

6. The special fixture for marking white lines on filters according to claim 5, characterized in that, The longitudinal positioning plate is provided with a mounting groove, and the transverse positioning plate is provided with a mounting block that matches and inserts into the mounting groove.

7. The special fixture for marking white lines on filters according to claim 6, characterized in that, The mounting groove is located on the side of the longitudinal positioning plate facing the base, and the mounting block of the transverse positioning plate is inserted between the longitudinal positioning plate and the base.

8. The special fixture for marking white lines on filters according to claim 7, characterized in that, The longitudinal positioning plate is provided with a positioning groove that communicates with the mounting groove, and a fixing member is provided on the positioning groove to press the transverse positioning plate against the base.

9. The special fixture for marking white lines on filters according to claim 5, characterized in that, The longitudinal positioning plate is connected to the base by adhesive or snap-fit.