Automatic edge pasting device for filter paper

By designing an automatic filter paper edge-attaching device, the automatic positioning and firm edge-attaching of the filter paper are achieved using a power source for the paper pressing plate and a height adjustment plate. This solves the problem of low automation in filter paper edge-attaching, improves filter paper quality and work efficiency, and is particularly suitable for air conditioning filters in vehicle air conditioning systems.

CN223890571UActive Publication Date: 2026-02-10ZHEJIANG UNIVERSE FILTER
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Patent Information

Application Number
CN202520280957.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-21
Publication Date
2026-02-10
Estimated Expiration
2035-02-21

AI Technical Summary

Technical Problem

The existing filter paper edge-sealing process has a low degree of automation, is prone to tilting, and is difficult to meet high-quality requirements, especially in the production of filters for vehicle air conditioning systems.

Method used

An automatic filter paper edge-attaching device was designed. Through the power source of the paper pressing sheet and the height adjustment plate, the filter paper is automatically positioned and firmly attached to the edge, ensuring that the paper is attached to the edge without tilting and at a consistent height.

Benefits of technology

It improves the automation and quality consistency of filter paper edge application, enhances work efficiency, and is particularly suitable for air conditioning filters in vehicle air conditioning systems.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an automatic filter paper welting device applied to filter production, which comprises a bottom plate, paper pressing sheet power sources are mounted on two side edges of the bottom plate through mounting plates, the paper pressing sheet power sources are connected with a fixing plate, a height adjusting plate is mounted on the fixing plate, a paper limiting plate is mounted on the inner side edge of the fixing plate, and the paper pressing sheet power sources are connected with the height adjusting plate. Adjusting rods are arranged at the two ends of the paper sheet limiting plates through connecting blocks, and filter paper positioning blocks are arranged on the bottom plate and located between the paper sheet limiting plates. The adjusting rod is arranged on the adjusting guide sleeve, and the adjusting guide sleeve is arranged on the bottom plate through the guide column. The paper sheet welt of the filter paper cannot be inclined, the height is consistent, firmness and reliability are achieved, the quality is uniformly guaranteed, the automation degree is high, and the working efficiency is high. Therefore, the filter paper product quality is improved, and the filter paper is particularly suitable for an air conditioner filter used by a vehicle air conditioner system.
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Description

Technical Field

[0001] This invention relates to a filter manufacturing apparatus, and more specifically to a filter paper edge-sealing device used in the production of filter components. Background Technology

[0002] Currently, air filters generally consist of a housing and filter element assembly. The filter element assembly comprises upper and lower end caps, filter paper, and a central tube. The manufacturing process of the filter paper typically involves unwinding, pressing, edge trimming, folding and rewinding, rewinding, edge attaching, and slitting. This is a semi-automatic production method. Each of the folding and rewinding, rewinding, edge attaching, and slitting processes requires a separate processing device, and manual operation is still needed in between. The folded filter paper is then manually pasted with edge strips, followed by manual waste trimming. This semi-automatic process has low automation, poor efficiency, and difficulty in guaranteeing processing quality (edge ​​attaching may result in tilting). Producing edge-attached filter paper is particularly unsuitable for use in high-requirement vehicle air conditioning systems. Summary of the Invention

[0003] The purpose of this invention is to overcome the above-mentioned technical deficiencies and provide an automatic filter paper edge-sealing device that is automated, does not tilt, and has a consistent height.

[0004] The objective of this invention is achieved through the following technical solution: an automatic filter paper edge-sealing device, comprising a base plate, on both sides of the base plate being mounted with a paper-pressing power source via a mounting plate, the paper-pressing power source being connected to a fixed plate, the fixed plate being mounted with a height adjustment plate, a paper-limiting plate being mounted on the inner side of the fixed plate, both ends of the paper-limiting plate being mounted with an adjustment rod via a connecting block, and a filter paper positioning block being mounted on the base plate and between the paper-limiting plates.

[0005] Guide rods are mounted on both sides of the fixed plate, and these guide rods are fitted inside ball bearing guide sleeves, which are then mounted on a mounting plate. An adjusting rod is mounted on an adjusting guide sleeve, which is mounted on a base plate via a guide post. A control button is also mounted on the mounting plate, and this control button is electrically connected to the power source for the paper pressing sheet. An adjusting handle is mounted at the top of the adjusting rod.

[0006] With the technical solution of this invention, the filter paper to be edged is placed and positioned between the filter paper positioning blocks, and the edge-attaching paper pieces are attached to both sides of the filter paper along the paper piece limiting plate (the height of which has been adjusted by the adjusting rod). The paper-pressing power source pushes the fixing plate and the height adjusting plate forward, firmly pressing the paper pieces onto both sides of the filter paper, thereby automatically completing the edge-attaching work. The edge-attaching process is characterized by no tilting, consistent height, firmness, reliability, and uniform quality assurance, with a high degree of automation and high work efficiency. This improves the quality of filter paper products and is particularly suitable for air conditioning filters used in vehicle air conditioning systems. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the installation structure of the present invention (the two sides show different actions). Detailed Implementation

[0008] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0009] like Figure 1 As shown, the present invention relates to an automatic filter paper edge-sealing device applied to filter production, comprising a base plate 1. On both sides (left and right sides) of the base plate 1, a paper-pressing power source 2 (a paper-pressing cylinder) is mounted via mounting plates 18 (whose two ends are respectively mounted on a fixed base 11 and a support base 20; the lateral position of the mounting plates can be adjusted according to the filter paper specifications). The paper-pressing power source 2 is connected to a fixed plate 3. A height adjustment plate 4 (higher than the fixed plate) is mounted on the fixed plate 3. A paper-limiting plate 5 (lower than the fixed plate) is mounted on the inner side of the fixed plate 3. Adjusting rods 7 are mounted on both ends of the paper-limiting plate 5 via connecting blocks 6. Filter paper positioning blocks 8 (one at the front and one at the back) are mounted on the base plate 1 and between the paper-limiting plates 5. The filter paper positioning blocks 8 are used to place and position the filter paper 16 to be edge-sealed. The paper pressing power source 2, mounting plate 18, fixing plate 3, height adjustment plate 4, and paper limiting plate 5 are all set on the left and right sides, respectively. The lowest point of the height adjustment plate 4 corresponds to the highest point of the paper limiting plate 5 (slightly higher).

[0010] Guide rods 9 are installed on both sides (front and rear sides) of the fixed plate 3. These guide rods 9 are fitted inside ball bearing guide sleeves 10, which are mounted on the mounting plate 18, facilitating the guiding and advancing of the fixed plate. An adjusting rod 7 is mounted on an adjusting guide sleeve 12, which is mounted on the base plate 1 via a guide post 13. This allows for the sliding advancement of the adjusting rod 7, the paper sheet limiting plate 5, and the connecting block 6 on the guide post, depending on the specifications of the filter paper. Locking blocks 19 are installed on the guide post 13 and on both sides of the adjusting guide sleeve 12 to lock the positioned adjusting guide sleeve. A control button 15 is also installed on the mounting plate 18, which is electrically connected to the paper sheet power source 2. An adjusting handle 14 is installed at the top of the adjusting rod 7, allowing for manual operation of the adjusting handle to finely adjust the height of the paper sheet limiting plate 5 by rotating the adjusting rod.

[0011] The working principle of this invention is as follows: First, the filter paper 16 to be edged is placed on the inner end between the two mounting plates 18, positioned between the two filter paper positioning blocks 8 and the paper sheet limiting plate 5. Then, the edge-attaching paper sheet 17 is attached to both sides of the filter paper 16 along the top of the paper sheet limiting plate 5 (already positioned at a certain height by the adjusting rod 7). Next, the control button 15 is activated to make the paper-pressing power source 2 work, which pushes the fixing plate 3 and the height adjusting plate 4 along the guide rod 9 towards the filter paper. Finally, the height adjusting plate presses the paper sheet firmly onto both sides of the filter paper along the top of the paper sheet limiting plate. The edge-attaching of the paper sheet will not tilt, the height will be consistent, and it will be firm and reliable, thus automatically completing the edge-attaching work of the filter paper.

Claims

1. An automatic filter paper edge-sealing device, including a base plate, characterized in that: On both sides of the base plate, there are paper pressing power sources mounted on mounting plates. The paper pressing power sources are connected to the fixed plate. The fixed plate is equipped with a height adjustment plate. On the inner side of the fixed plate, there are paper limiting plates. Both ends of the paper limiting plates are equipped with adjusting rods via connecting blocks. Filter paper positioning blocks are installed on the base plate and between the paper limiting plates.

2. The automatic filter paper edge-sealing device as described in claim 1, characterized in that: Guide rods are installed on both sides of the fixed plate. The guide rods are fitted inside the ball bearing guide sleeves, which are mounted on the mounting plate.

3. The automatic filter paper edge-sealing device as described in claim 1 or 2, characterized in that: The adjusting rod is mounted on the adjusting guide sleeve, which is mounted on the base plate via a guide post.

4. The automatic filter paper edge-sealing device as described in claim 1 or 2, characterized in that: The mounting plate is also equipped with a control button, which is electrically connected to the power source for the paper pressing sheet.

5. The automatic filter paper edge-sealing device as described in claim 1, characterized in that: An adjustment handle is attached to the top of the adjustment rod.

6. The automatic filter paper edge-sealing device as described in claim 3, characterized in that: Locking blocks are installed on the guide post and on both sides of the adjusting guide sleeve.