Folding cotton filter and production device thereof

Abstract

The invention discloses a folding cotton filter and a production device thereof, and particularly relates to air filtering equipment, the folding cotton filter comprises an outer frame and combined filtering cotton arranged on the outer frame, the combined filtering cotton comprises sparse folding parts arranged on the two sides of the outer frame, a dense folding part is arranged between the two sparse folding parts, a limiting frame is arranged between the dense folding part and the dense folding part, and the limiting frame is arranged between the dense folding part and the dense folding part. And deformation supporting strips are arranged on the sparse folding part and the dense folding part in a linear array. The combined filter cotton is designed into the sparse folding parts on the two sides and the dense folding part in the middle, most dust can be blocked by the sparse folding parts, shutdown cleaning is facilitated, the bearing capacity of accumulated dust of the large-angle sparse folding parts is large, the dust can still be left when accumulated, airflow circulation is maintained, and resistance is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of air filtration, and in particular to a folded cotton filter and a production device thereof. Background Art

[0002] Pleated cotton filters are mostly plate filters, which are mainly used to filter dust in gases and are often used in industrial production and central air conditioning.

[0003] According to patent number CN103752106A, published (announced) date: 2014-04-30, a paper frame plate filter is disclosed, comprising: a paper outer frame and filter cotton, the filter cotton is fixed on the inner wall of the paper outer frame, the filter cotton is in a plate shape, and the filter cotton is polyester synthetic fiber. Through the above method, the paper frame plate filter of the present invention has low cost, is easy to use, and can be folded.

[0004] According to patent No. CN117002091A, publication (announcement) date: 2023-11-07, a topological folded filter paper and its production equipment and filter element are disclosed. The technical problem to be solved is that the filtering effect of the one-way folded filter element in the prior art is poor and the filtering effect is affected when the filter paper adopts a method of reducing the fold spacing. It is mainly achieved through the following technical solutions: a topological folded filter paper, including a filter paper body, on which a first fold line, a second fold line and a third fold line are provided; a topological folded filter paper production equipment, including a production frame and a conveying part, also including a feeding device, an indentation device, a slitting device and a transfer device; a topological folded filter element, including a topological folded filter paper and a packaging frame, the packaging frame is one or more of a plate type packaging, a cylindrical type packaging and a spherical type packaging. The present invention breaks the conventional folding structure, extends the folding structure from a simple one direction to two directions, breaks through the traditional thinking of single-axis folding, increases the use area of ​​the filter paper, and improves the service life of the filter.

[0005] In the prior art including the above-mentioned patent, the plate filter blocks dust by stacking filter cotton layers and placing them in a metal frame. The more filter cotton layers are stacked within a certain length, the stronger the filtering ability is. However, the more filter cotton layers are stacked, the more likely it is that dust will accumulate, resulting in increased resistance to airflow, reduced airflow, and damage to the equipment using the filter. Summary of the invention

[0006] The purpose of the present invention is to provide a folded cotton filter and a production device thereof, aiming to solve the above-mentioned problems.

[0007] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a folded cotton filter, comprising an outer frame and a combined filter cotton arranged on the outer frame, the combined filter cotton comprising sparse folded parts arranged on both sides of the outer frame, a dense folded part is arranged between the two sparse folded parts, a limiting frame is arranged between the two, and deformation support strips are arranged in a linear array on the sparse folded parts and the dense folded parts.

[0008] Preferably, the deformable support bar is provided with a folding groove and a glue groove, and the deformable support bar includes the following two stations:

[0009] First station: the deformation support strip is arranged on the sparse folding portion, and the folding groove rebounds and opens;

[0010] Second workstation: the deformation support strip is arranged on the dense folding portion, and the folding groove is folded and compressed.

[0011] Preferably, limiting racks are symmetrically provided at both ends of the outer frame, and the limiting racks are in contact with the sparse folding portion.

[0012] Preferably, glue is poured into the folding groove, and the glue is air-dried and hardened to maintain the shape of the deformed support strip.

[0013] Preferably, the glue groove is folded along with the dense folding portion to dock with the reverse glue groove.

[0014] A folded cotton filter production device, the folded cotton filter comprises a deformable support bar and a frame, and the frame is respectively provided with:

[0015] a support roller set for supporting the substrate roll and the deformed support strip;

[0016] A gluing mechanism, which is used to apply glue between the substrate roll and the deformable support strip;

[0017] The applying mechanism comprises an endless pressing belt for pressing the substrate roll.

[0018] Preferably, the gluing mechanism comprises a glue frame and a tensioning wheel, the support roller group comprises a first limiting roller and a second limiting roller symmetrically arranged along the glue frame, and the deformable support strip is immersed in the glue frame along with the tensioning wheel.

[0019] Preferably, an inner cavity is provided in the folding groove, and the tensioning wheel can be moved and adjusted in the vertical direction so that the deformed support strip switches positions in the glue frame, driving the inner cavity to suck glue.

[0020] Preferably, the support roller group further comprises an initial pressure roller, and the initial pressure roller is driven to squeeze or semi-squeeze the deformed support strip so that the inner cavity draws the glue in the glue groove or sprays out the glue.

[0021] Preferably, coupling serrated grooves are provided on the inner cavity, and two groups of coupling serrated grooves are pressed, fitted and fixed with the initial pressing roller.

[0022] In the above technical scheme, a pleated cotton filter and a production device thereof provided by the present invention have the following beneficial effects: the combined filter cotton is arranged with sparse folded parts on both sides and a dense folded part in the middle, so that most of the dust can be blocked by the sparse folded parts, which is convenient for stopping the machine for cleaning, and the sparse folded parts with large angles have a large carrying capacity for accumulated dust, and dust can still be retained when it accumulates, so as to maintain airflow and reduce resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0024] Figure 1 A schematic diagram of a folded cotton filter provided in an embodiment of the present invention;

[0025] Figure 2 A schematic diagram of an explosion of a folded cotton filter provided in an embodiment of the present invention;

[0026] Figure 3 A cross-sectional schematic diagram of a folded cotton filter provided in an embodiment of the present invention;

[0027] Figure 4 A schematic cross-sectional view of a deformed support bar provided in an embodiment of the present invention;

[0028] Figure 5 A schematic cross-sectional view of a deformed support bar without rebound provided in an embodiment of the present invention;

[0029] Figure 6 A schematic diagram of a folded cotton filter production device provided in an embodiment of the present invention;

[0030] Figure 7 A schematic diagram of a gluing mechanism and a supporting roller group provided in an embodiment of the present invention;

[0031] Figure 8 An exploded schematic diagram of a gluing mechanism and a support roller assembly provided in an embodiment of the present invention;

[0032] Fig. 9 A cross-sectional schematic diagram of a folded cotton filter production device provided in an embodiment of the present invention;

[0033] Fig.10 for Fig. 9 Enlarged schematic diagram at point A in the middle.

[0034] Description of reference numerals:

[0035] 1. Outer frame; 11. Limiting frame; 12. Limiting rack; 2. Combined filter cotton; 21. Dense folding part; 211. Base material roll; 22. Sparse folding part; 221. Laminating strip; 23. Deformation support strip; 231. Glue groove; 2311. Exit; 232. Folding groove; 2321. Coupling serrated groove; 3. Frame; 31. Fixed plate; 4. Laminating mechanism; 41. Annular extrusion belt; 42. Support shaft; 43. Folding pressing teeth; 44. Initial pressing roller; 5. Support roller group; 51. Bearing roller; 511. Limiting ring; 512. Rotating shaft; 52. First limiting roller; 53. Second limiting roller; 6. Gluing mechanism; 61. Glue frame; 62. Tensioning wheel; 621. Sliding frame; 63. Vertical plate. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0037] Embodiment 1

[0038] like Figure 1-5 As shown, a folded cotton filter comprises an outer frame 1 and a combined cotton filter 2 arranged on the outer frame 1, the combined cotton filter 2 comprises sparse folding portions 22 arranged on both sides of the outer frame 1, a dense folding portion 21 is arranged between the two sparse folding portions 22, a limiting frame 11 is arranged between the two, and deformation support bars 23 are arranged in a linear array on the sparse folding portions 22 and the dense folding portions 21.

[0039] Specifically, the outer frame 1 is made of metal, which is convenient for connecting the filter to special equipment, such as an exhaust port, a pipe port, etc. The combined filter cotton 2 is formed by continuous "W"-shaped folding. The adjacent bending angles on the sparse folded parts 22 on both sides of the outer frame 1 are not less than 60° to ensure that dust still has a certain airflow permeability when it accumulates at the bending part, and the adjacent bending angles on the dense folded parts 21 are not greater than 30°. Deformation support strips 23 are arranged in a linear array on the sparse folded parts 22 and the dense folded parts 21. The deformation support strips 23 play a supporting role after bending, and cooperate with the limiting frame 11. It is not easy to deform during the subsequent operation of the sparse folded parts 22. Metal bonding strips 221 are arranged at both ends of the sparse folded parts 22. The bonding strips 221 are bonded to the outer frame 1 after installation. After a period of subsequent work, vibrations can be generated by knocking on the outer frame 1, thereby transmitting vibrations through the bonding strips 221 and the deformation support strips 23, thereby assisting the sparse folded parts 22 bent at large angles to shed dust.

[0040] In the above technical solution, the combined filter cotton 2 is arranged with sparse folded parts 22 on both sides and a dense folded part 21 in the middle. Most of the dust can be blocked by the sparse folded parts 22, which is convenient for stopping the machine for cleaning. The large-angle sparse folded parts 22 have a large carrying capacity for accumulated dust, and the dust can still be retained when it accumulates to maintain airflow and reduce resistance.

[0041] As an embodiment provided by the present invention, a folding groove 232 and a glue groove 231 are provided on the deformable support bar 23, and the deformable support bar 23 includes the following two stations:

[0042] First station: the deformation support bar 23 is arranged on the sparse folding portion 22, and the folding groove 232 rebounds and opens;

[0043] Second station: The deformed support strip 23 is disposed on the dense folding portion 21, and the folding groove 232 is folded and compressed.

[0044] Specifically, the folding groove 232 and the glue groove 231 are symmetrically opened on the deformation support strip 23, and the folding groove 232 is at different thicknesses as the work station of the deformation support strip 23 is switched. When the deformation support strip 23 is applied to the sparse folding portion 22, the folding groove 232 is in the first work station and is in an open state, so that there is a gap between the folding groove 232 and the substrate, so as to retain glue to assist fixation and avoid glue diffusion, so as to increase the ventilation rate of the formed sparse folding portion 22. When the deformation support strip 23 is applied to the dense folding portion 21, the glue groove 231 will dock with each other as it folds, thereby limiting the diffusion of glue in the glue groove 231 to increase the ventilation performance of the dense folding portion 21. In addition, the deformation support strips 23 that are fitted to each other are fixed by the glue in the glue groove 231, which can also increase the integrity of the deformation support strip 23 and the strength of the dense folding portion 21, which is convenient for subsequent installation steps.

[0045] When manufacturing the sparse folding portion 22, the folding groove 232 will be opened for fixation, and when manufacturing the dense folding portion 21, the folding groove 232 will be closed, and at the same time the glue grooves 231 will fit each other to restrict the glue. When in use, the airflow carrying dust will first be initially intercepted by the sparse folding portion 22, and then the airflow passing through will still contain particles, and the particles will be intercepted again by the dense folding portion 21 for filtering. After using it for a period of time, the outer frame 1 is knocked to transmit vibration to assist the sparse folding portion 22 with a large angle bend to shed dust.

[0046] As an embodiment provided by the present invention, limiting racks 12 are symmetrically arranged at both ends of the outer frame 1 , and the limiting racks 12 are in contact with the sparse folding portion 22 .

[0047] Specifically, the bending angle of the limiting rack 12 is the same as the bending angle of the deformed support strip 23 on the sparse folding portion 22, so as to limit the bending position of the filter cotton and assist in fixing the filter cotton.

[0048] As an embodiment provided by the present invention, glue is poured into the folding groove 232, and the glue is air-dried and hardened to maintain the shape of the deformed support strip 23;

[0049] The glue groove 231 is folded along with the close folding portion 21 and docked with the reverse glue groove 231 .

[0050] Specifically, the folding groove 232 is filled with glue. When the dense folding portion 21 is manufactured, the folding groove 232 will be pressed to press the glue in the folding portion out along the glue groove 231 so as to infiltrate the filter cotton of the fitting part with glue. At this time, as the dense folding portion 21 is folded, the glue groove 231 is docked with the reverse glue groove 231 to limit the glue and prevent the glue from overflowing while fixing it to keep the deformed support strip 23 on the dense folding portion 21 in a fitting state. When the sparse folding portion 22 is manufactured, the folding groove 232 is not filled with glue, but the folding groove 232 is still pressed to absorb the excess glue in the glue groove 231, thereby reducing the diffusion of glue while achieving fixation and increasing the ventilation capacity. The sucked glue will be air-dried in the folding groove 232, thereby assisting in fixing the sparse folding portion 22.

[0051] When manufacturing the sparse folding portion 22, the folding groove 232 will be pressed and then opened to suck out the excess glue in the glue groove 231, and then the glue will be air-dried and fixed. When manufacturing the dense folding portion 21, the folding groove 232 will be closed, and the glue groove 231 will be docked with the reverse glue groove 231 to limit the glue and prevent the glue from overflowing while fixing it. When in use, the airflow carrying dust will first be preliminarily intercepted by the sparse folding portion 22, and then the airflow passing through will still contain particles, and the particles will be intercepted again by the dense folding portion 21 for filtering. After a period of use, the outer frame 1 is knocked to transmit vibration to assist the sparse folding portion 22 with a large angle bend to shed dust.

[0052] Embodiment 2

[0053] like Figure 1-10 As shown, a folded cotton filter production device, the folded cotton filter includes a deformed support bar 23, including a frame 3, and the frame 3 is respectively provided with:

[0054] A support roller set 5, which is used to support the substrate roll 211 and the deformed support strip 23;

[0055] A gluing mechanism 6, which is used to glue between the substrate roll 211 and the deformable support strip 23;

[0056] The applying mechanism 4 comprises an endless extrusion belt 41 for extruding the substrate roll 211 .

[0057] Specifically, a fixed plate 31 is provided on the frame 3, and the support roller group 5 includes a rotating shaft 512 arranged on the fixed plate 31, and a plurality of limiting rings 511 are arranged on the rotating shaft 512 in a linear array. The deformed support strip 23 is a disc-shaped coil, and the disc-shaped coil is arranged between the limiting rings 511. The applying mechanism 4 also includes a plurality of support shafts 42 rotatably connected to the fixed plate 31, and the annular extrusion belt 41 is sleeved on the support shaft 42 and rotates. The annular extrusion belt 41 is provided with concave and convex patterns to press and fix the substrate on the substrate roll 211.

[0058] The frame 3 is provided with folding pressing teeth 43, which are matched with each other. The folding pressing teeth 43 are driven by a telescopic motor to approach each other to squeeze the filter cotton into a "W" shape, which is convenient for subsequent plasticization.

[0059] Furthermore, the gluing mechanism 6 can be a glue gun, which applies glue to the deformable support bar 23, and then the deformable support bar 23 contacts the substrate for fixation; the gluing mechanism 6 can also be a glue bin with a glue brush, and the deformable support bar 23 is fixed after being glued by the glue brush.

[0060] As an embodiment provided by the present invention, the gluing mechanism 6 includes a glue frame 61 and a tensioning wheel 62, the support roller group 5 includes a first limiting roller 52 and a second limiting roller 53 symmetrically arranged along the glue frame 61, and the deformable support strip 23 is immersed in the glue frame 61 along the tensioning wheel 62.

[0061] Specifically, the glue frame 61 is arranged on the frame 3, and the first limiting roller 52 and the second limiting roller 53 will frictionally fix the deformed support strip 23 when they rotate, so as to cooperate with the tensioning wheel 62 to press the deformed support strip 23. When manufacturing the sparse folding portion 22, the deformed support strip 23 is immersed in the glue frame 61 along with the tensioning wheel 62, and is soaked in glue. The glue is relatively viscous and will be retained in the glue groove 231 and the folding groove 232 due to tension, and then contact the substrate for bonding to form a filter cotton specifically for the sparse folding portion 22.

[0062] Furthermore, the first limiting roller 52 and the second limiting roller 53 are driven by a motor.

[0063] When manufacturing the sparse folding portion 22, the deformed support strip 23 is pulled out and restricted by the first limiting roller 52 and the second limiting roller 53 to be immersed in the glue frame 61 for gluing, and then the substrate is bonded to the annular extrusion belt 41, and then extruded and formed with the annular extrusion belt 41 to obtain filter cotton. The folding pressing teeth 43 are driven by the telescopic motor to approach each other to extrude the filter cotton into a "W" shape.

[0064] As an embodiment provided by the present invention, an inner cavity is opened in the folding groove 232, and the tensioning wheel 62 can be moved and adjusted in the vertical direction to enable the deformed support strip 23 to switch positions in the glue frame 61, driving the inner cavity to suck glue.

[0065] Specifically, an outlet 2311 connected to the glue groove 231 is opened on the inner cavity, and a vertical block 63 that can slide in the vertical direction is arranged on the frame 3. The vertical block 63 is locked by a screw. The vertical block 63 is fixedly connected to the sliding frame 621 by a spring. The tensioning wheel 62 is rotatably connected to the sliding frame 621. The vertical block 63 is moved to increase the tensioning force of the tensioning wheel 62, so that when producing the dense folding part 21, when the deformed support strip 23 is in the glue frame 61, at the lowest point, the folding groove 232 is compressed and deformed. As it moves away from the tensioning point, the folding groove 232 rebounds and sucks the glue into the inner cavity through the outlet 2311. Subsequently, during the pressing stage, the glue is sprayed out from the outlet 2311 again to fill the glue groove 231 while having a certain amount of overflow to correspond to the state of the deformed support strips 23 that are fitted to each other in the dense folding part 21.

[0066] During manufacturing, the deformed support strip 23 is pulled out and restricted by the first limiting roller 52 and the second limiting roller 53 to be immersed in the glue frame 61. When manufacturing the dense folding portion 21, the tensioning wheel 62 applies pressure to the deformed support strip 23 to deform it, so that the glue liquid is sucked into the inner cavity when the folding groove 232 rebounds. When manufacturing the sparse folding portion 22, the tensioning wheel 62 fits the deformed support strip 23 without applying pressure, and glue is applied through the gap between the glue groove 231 and the folding groove 232. After gluing, it is then bonded to the substrate and conveyed to the annular extrusion belt 41, and then extruded and formed with the annular extrusion belt 41 to obtain filter cotton. The folding pressing teeth 43 are driven by the telescopic motor to approach each other to extrude the filter cotton into a "W" shape.

[0067] As the optimal embodiment provided by the present invention, the support roller group 5 also includes an initial pressure roller 44, which is driven to squeeze or semi-extrude the deformed support strip 23 so that the inner cavity can suck the glue in the glue groove 231 or spray out the glue.

[0068] Specifically, the gap between the initial pressing rollers 44 is small, and the substrate and the deformed support strip 23 are preliminarily fixed. When the dense folding portion 21 is manufactured, glue remains in the inner cavity. At this time, the initial pressing roller 44 squeezes the deformed support strip 23 to squeeze out excess glue to assist the adjacent deformed support strips 23 to be bonded by glue. At the same time, due to the tension of the glue, the deformed support strip 23 does not rebound. When the sparse folding portion 22 is manufactured, no glue remains in the inner cavity. At this time, air is sprayed out by pressing, and then the deformed support strip 23 rebounds to absorb the glue that has not diffused in time in the glue groove 231, to avoid subsequent excessive glue diffusion, so as to increase the ventilation capacity of the finished filter cotton, and then the glue sucked into the inner cavity will be air-dried, and the deformed support strip 23 after rebounding is fixed to increase the supporting capacity of the deformed support strip 23.

[0069] During manufacturing, the deformed support strip 23 is pulled out and restricted by the first limiting roller 52 and the second limiting roller 53 to be immersed in the glue frame 61. When manufacturing the dense folding portion 21, the tensioning wheel 62 applies pressure to the deformed support strip 23 to deform it, so that the folding groove 232 absorbs the glue into the inner cavity when it rebounds. When manufacturing the sparse folding portion 22, the tensioning wheel 62 fits the deformed support strip 23 without applying pressure, and glue is applied through the gap between the glue groove 231 and the folding groove 232. After gluing, the deformed support strip 23 is transported to fit the substrate, and then pressed by the initial pressing roller 44. When manufacturing the dense folding portion 21, glue is retained in the inner cavity. At this time, the initial pressing roller 44 exerts pressure on the deformed support strip 23. Extrusion is performed to squeeze out excess glue to assist adjacent deformed support strips 23 to be bonded by glue. At the same time, due to the tension of the glue, the deformed support strip 23 does not rebound. When the sparse folding portion 22 is produced, no glue is retained in the inner cavity. At this time, air is pressed to spray out, and then the deformed support strip 23 rebounds to absorb the glue that has not diffused in time in the glue groove 231, so as to avoid excessive glue diffusion in the future. After pressing, it is transported to the annular extrusion belt 41, and then extruded and formed with the annular extrusion belt 41 to obtain filter cotton. After waiting for the glue in the filter cotton to dry, the folding pressing teeth 43 are driven close to each other by the telescopic motor to squeeze the filter cotton into a "W" shape.

[0070] Furthermore, coupling serrated grooves 2321 are provided on the inner cavity, and two groups of coupling serrated grooves 2321 are squeezed and fixed with the initial pressure roller 44. The viscosity of the glue is limited. In order to increase the tension, the two groups of coupling serrated grooves 2321 are used to increase the fitting area, so as to avoid the rebound of the deformed support strip 23 after being pressed by the initial pressure roller 44 when producing the dense folding portion 21. When producing the sparse folding portion 22, the sucked glue is the glue that fits the filter cotton. Gas will be mixed in the process of suction, so that the glue forms bubbles in the inner cavity, so that the glue is diffused in the inner cavity by the bubbles.

[0071] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A folded cotton filter, characterized in that: The invention comprises an outer frame (1) and a combined filter cotton (2) arranged on the outer frame (1), wherein the combined filter cotton (2) comprises sparse folded portions (22) arranged on both sides of the outer frame (1), a dense folded portion (21) is arranged between the two sparse folded portions (22), a limiting frame (11) is arranged between the two, and deformation support bars (23) are arranged in a linear array on the sparse folded portions (2) and the dense folded portions (21).

2. A folded cotton filter according to claim 1, characterized in that: The deformable support bar (23) is provided with a folding groove (232) and a glue groove (231), and the deformable support bar (23) includes the following two stations: First workstation: the deformation support strip (23) is arranged on the sparse folding portion (22), and the folding groove (232) rebounds and opens; Second workstation: the deformed support strip (23) is arranged on the dense folding portion (21), and the folding groove (232) is folded and compressed.

3. A folded cotton filter according to claim 1, characterized in that: Limiting racks (12) are symmetrically arranged at both ends of the outer frame (1), and the limiting racks (12) are in contact with the sparse folding portion (22).

4. A folded cotton filter according to claim 2, characterized in that: The folding groove (232) is filled with glue, and the glue is air-dried and hardened to maintain the shape of the deformed support strip (23).

5. The folded cotton filter according to claim 3, characterized in that: The glue groove (231) is folded along with the dense folding portion (21) to dock with the reverse glue groove (231).

6. A folded cotton filter production device, characterized in that: The folded cotton filter according to any one of claims 1 to 5 comprises a deformable support bar (23) and a frame (3), and the frame (3) is provided with: A support roller set (5) for supporting the substrate roll (211) and the deformable support strip (23); A gluing mechanism (6) for gluing between the substrate roll (211) and the deformable support strip (23); The applying mechanism (4) comprises an annular extrusion belt (41) for extruding the substrate roll (211).

7. A folded cotton filter production device according to claim 6, characterized in that: The gluing mechanism (6) comprises a glue frame (61) and a tensioning wheel (62), the supporting roller group (5) comprises a first limiting roller (52) and a second limiting roller (53) symmetrically arranged along the glue frame (61), and the deformable supporting strip (23) is immersed in the glue frame (61) along with the tensioning wheel (62).

8. A folded cotton filter production device according to claim 7, characterized in that: An inner cavity is provided in the folding groove (232), and the tensioning wheel (62) can be moved and adjusted in the vertical direction so that the deformable support strip (23) switches positions in the glue frame (61) to drive the inner cavity to suck glue.

9. A folded cotton filter production device according to claim 8, characterized in that: The support roller group (5) also includes an initial pressing roller (44), and the initial pressing roller (44) is driven to squeeze or semi-squeeze the deformed support strip (23) so that the inner cavity sucks the glue in the glue groove (231) or sprays out the glue.

10. A folded cotton filter production device according to claim 9, characterized in that: The inner cavity is provided with coupling sawtooth grooves (2321), and two groups of coupling sawtooth grooves (2321) are pressed, fitted and fixed with the initial pressing roller (44).

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