Filter medium group forming equipment

Abstract

The utility model discloses filter medium cluster forming equipment which comprises a wave forming module, a filter medium cluster forming module, a filter medium cluster forming module and a filter medium cluster forming module, the ultrasonic welding module comprises a main ultrasonic welding head and a side ultrasonic welding head; under the combined action of the main ultrasonic welding head and the second pressure impeller, wave troughs of the wave-shaped filter sheet and a plane filter sheet are attached and fused and welded together; and the closed end closing module is used for pressing the wave-shaped filter sheet and the plane filter sheet near the first end to form a pressing part, and fusing and welding the pressing part to form a pressing closed end through which fluid cannot pass. According to the filter medium ball manufactured by using the forming equipment, the glue consumption between two layers of sheets is reduced, the manufacturing cost is reduced, the product weight is reduced, the utilization rate of the filter medium is improved, and the service life of the filter material is prolonged.

Description

Technical Field

[0001] The utility model relates to a forming device for a filter medium mass. Background Art

[0002] Air usually contains pollutants such as dust, and fuel or oil also contains pollutants such as impurities. In many cases, it is desirable to filter some or all of these pollutants out of the fluid flow. For example, dust may be carried by air into the internal combustion engine of a motor vehicle or power generation equipment, and such a system preferably removes or reduces the content of selected pollutants (e.g., particulate pollutants) from the air.

[0003] In order to reduce pollutants, a variety of fluid filter media have been developed. For example, Donaldson's Chinese invention patent CN101306277B discloses a grooved filter medium and its manufacturing process, which includes: (a) a grooved thin plate of the filter medium, which includes wave crests and troughs of the waveform; (b) a panel of the filter medium is bonded to the grooved thin plate, and wherein the grooved thin plate and the panel form a plurality of grooves extending therebetween; (c) the plurality of grooves extend between the grooved thin plate and the panel, including a regular folding structure that seals the plurality of grooves so that unfiltered air cannot pass through, the regular folding structure including at least two folds, the at least two folds including inverted wave crests obtained by inverting the wave crests of the grooved thin plate, and the remaining portion of the wave crest of the folded grooved thin plate. The above structure is a classic example of a grooved filter medium, which has played a huge role in promoting the development of air filters. However, many deficiencies are still found in use, at least in the following two aspects: first, the two layers of the filter medium are bonded with glue, and the folded structure is also fixed with glue to form a folded closed end. Therefore, a large amount of glue is used, which not only increases the manufacturing cost, but also increases the weight of the product and wastes resources; second, the contact area between the corrugated sheet and the non-corrugated sheet is large when bonded, which reduces the utilization rate of the filter material and affects the service life of the filter element.

[0004] In particular, with the emission upgrades to National VI for road vehicles and National IV for non-road vehicles, complete vehicles and machines have put forward higher requirements on the space and maintenance cycle of air filters. Users need a product with a compact structure, low intake resistance, higher dust holding capacity and longer maintenance cycle. Utility Model Content

[0005] In view of this, the technical problem to be solved by the utility model is to provide a filter medium mass forming device, the filter medium mass produced by the device uses less glue, has low manufacturing cost, is light in product weight, and saves resources.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is: a filter medium mass forming device, comprising: a filter medium sheet forming unit, the filter medium sheet forming unit comprises a wave forming module, the wave forming module comprises a first wave pressing wheel and a second wave pressing wheel, the first wave pressing wheel and the second wave pressing wheel are used to press a wave-shaped filter sheet material into a wave-shaped filter sheet; an ultrasonic welding module, the ultrasonic welding module comprises a main ultrasonic welding head and a side ultrasonic welding head, the main ultrasonic welding head extends along the extension direction of the crest or trough of the wave-shaped filter sheet, and the side ultrasonic welding head extends along a direction perpendicular to the wave crest or trough of the wave-shaped filter sheet. The main ultrasonic horn is located below the second wave pressure wheel, and the two work together to adhere the wave trough of the wavy filter sheet to a flat filter sheet and melt-weld them together; a closed-end closed module, the closed-end closed module includes a molding roller, the molding roller is located on the downstream side of the second wave pressure wheel, and is arranged above the side ultrasonic horn, the side ultrasonic horn and the molding roller work together to press the wavy filter sheet and the flat filter sheet near the first end to form a pressing part, and melt-weld the pressing part to form a pressed closed end through which the fluid cannot pass.

[0007] Among them, second protrusions are arranged on the tooth tops of the forming teeth of the second pressure wave wheel at intervals, and first grooves are arranged in the tooth grooves of the forming teeth of the first pressure wave wheel at intervals. When the second protrusions and the first grooves are pressed together, a valley protrusion is formed at the bottom of the valley of the wavy filter sheet material. When a forming tooth of the second pressure wave wheel approaches the main ultrasonic welding head, the valley protrusion of the wavy filter sheet material located on the forming tooth is melt-welded to the corresponding part of the planar filter sheet material.

[0008] Among them, first protrusions are arranged on the tooth tops of the forming teeth of the first pressure wheel, and second grooves are arranged in the tooth grooves of the forming teeth of the second pressure wheel. When the first protrusions and the second grooves are pressed together, the peak protrusions of the wave crests of the wavy filter sheet are formed.

[0009] Among them, the closed end closing module includes a embossing wheel, which is located on the upstream side of the forming roller and the downstream side of the second wave-pressing wheel, and is arranged above the side ultrasonic horn. The embossing wheel and the side ultrasonic horn work together to emboss at least one wave crest of the wavy filter sheet to form two short wave crests. The side ultrasonic horn and the forming roller work together to further press the embossed wavy filter sheet and tilt it to the same side of the flat filter sheet to form the pressing portion. The side ultrasonic horn and the forming roller work together to melt and weld the pressing portion into a pressed closed end.

[0010] Among them, the embossing wheel is provided with embossing wheel teeth, the side ultrasonic welding head supports the wavy filter sheet and the flat filter sheet, and the embossing wheel teeth press a wave crest of the wavy filter sheet after forming into two short wave crests.

[0011] Among them, the first wave pressing wheel is a wave pressing wheel that can heat the corrugated filter sheet material to be formed, and the second wave pressing wheel is a wave pressing wheel that can heat the corrugated filter sheet material to be formed and can adsorb the formed corrugated filter sheet to the peripheral surface.

[0012] Among them, the filter medium sheet forming unit also includes a stripping module, which includes stripping teeth and filter material guide rails. The stripping teeth are fixed to the filter material guide rails and extend into the annular groove of the first pressure wheel. The filter material guide rail is arc-shaped and is arranged on one side of the second pressure wheel.

[0013] Wherein, the filter medium sheet forming unit further comprises a cooling module for cooling and shaping the heat-formed corrugated filter sheet.

[0014] Wherein, the cooling module is an air-cooling module, and the air-cooling module comprises a cooling frame box, and the cooling frame box has an air outlet for blowing air for cooling toward the second pressure wave wheel and the closed end closed module adjacent thereto.

[0015] Wherein, the filter medium sheet forming unit further comprises a trimming module, and the trimming module is located at the downstream side of the forming roller.

[0016] After adopting the above technical solution, the utility model achieves the following technical effects:

[0017] (1) The filter medium group manufactured by the molding device disclosed in the utility model has a wave trough of the corrugated filter sheet and a flat filter sheet melt-welded together, and the corrugated filter sheet and the flat filter sheet are pressed together near the first end to form a pressed portion, and the pressed portion is melt-welded to form a pressed closed end through which fluid cannot pass. Compared with the prior art, the amount of glue used between the two layers of sheets is reduced, the manufacturing cost is reduced, the product weight is reduced, and resources are saved.

[0018] (2) The filter medium group manufactured by the molding device disclosed in the utility model has a wave-shaped filter sheet and a flat filter sheet intermittently melt-welded together, and the non-melt-welded parts are separated from contact during use to form flow gaps. These flow gaps can increase the flow area of ​​the fluid, thereby improving the utilization rate of the filter medium, increasing the service life of the filter material, and reducing the fluid resistance. Furthermore, the filter medium group manufactured by the molding device disclosed in the utility model is provided with a protruding portion protruding outward at the bottom of the trough or the top of the peak. The provision of the protruding portion can further increase the flow area and improve the use effect.

[0019] (3) The filter medium group manufactured by the molding equipment disclosed in the utility model has at least one wave crest of its corrugated filter sheet being pressed down to form two short wave crests. The two short wave crests are pressed down to tilt to the same side, so that the transition between the pressed part and the non-pressed part is smoother, which is beneficial to reducing the resistance of air intake or air outlet.

[0020] (4) Compared with the prior art, the molding equipment disclosed in the utility model applies ultrasonic welding technology to the fusion welding between filter materials, has a compact structure, is easy to control automatically, has high efficiency and low manufacturing cost.

[0021] In summary, the filter medium group manufactured by the molding equipment disclosed in the utility model, on the one hand, adopts fusion welding between the filter materials, which reduces the amount of glue used between the two layers of sheets compared to gluing, reduces the manufacturing cost, reduces the product weight, and saves resources; on the other hand, due to the use of an intermittent fusion welding structure, the non-fusion welded part can form a flow gap, increasing the flow area of ​​the fluid, thereby improving the utilization rate of the filter medium and increasing the service life of the filter material. The air filter manufactured by it has a compact structure, low intake resistance and higher dust holding capacity, a longer maintenance cycle, and reduced fluid resistance. It can fully meet the emission upgrade requirements of National VI for road and National IV for non-road, and has broad commercial prospects and market value. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional structural schematic diagram of a filter medium sheet embodiment 1 manufactured using the molding equipment disclosed by the utility model;

[0023] Figure 2 yes Figure 1 Side view of

[0024] Figure 3 yes Figure 2 Enlarged cross-sectional view at AA in the middle;

[0025] Figure 4A yes Figure 2 Enlarged cross-sectional view at the middle BB;

[0026] Figure 4B yes Figure 2 Enlarged cross-sectional view at CC;

[0027] Figure 5A It is a cross-sectional view of the filter medium sheet Example 2 manufactured by the molding device disclosed by the utility model at the flow gap;

[0028] Figure 5B is a cross-sectional view of a convex portion of a filter medium sheet Example 2 manufactured using the molding device disclosed in the utility model;

[0029] Figure 6 It is a three-dimensional structural schematic diagram of a filter medium sheet material embodiment 3 manufactured using the molding equipment disclosed in the utility model;

[0030] Figure 7 yes Figure 6 Side view of

[0031] Figure 8 yes Figure 7 Enlarged cross-sectional view at DD in the middle;

[0032] Fig. 9 yes Figure 7 Enlarged cross-sectional view at FF in the middle;

[0033] Fig.10 is a side view of a filter medium mass embodiment 4 manufactured using the molding device disclosed in the utility model, viewed from the first end to the second end;

[0034] Fig.11 It is a structural schematic diagram of a filter medium mass embodiment 5 manufactured using the molding device disclosed in the utility model;

[0035] Fig.12 yes Fig.11 A schematic diagram of the enlarged structure at I in the middle;

[0036] Fig.13 This is a structural principle diagram of a filter medium mass forming device of the utility model;

[0037] Fig.13A yes Fig.13 A three-dimensional diagram of some equipment;

[0038] Fig. 13B yes Fig.13 A partial cross-sectional view of a pair of wave pressure wheels at the meshing position;

[0039] Fig.14 yes Fig.13 Schematic diagram of the corresponding structure of the second pressure wave wheel and the main ultrasonic welding head;

[0040] Fig.15 yes Fig.14 Side view of

[0041] Fig.16 yes Fig.13 Schematic diagram of the corresponding structures of the middle pressure concave wheel, the forming pressure roller and the side ultrasonic welding head;

[0042] Fig.17 yes Fig.16 Left view of;

[0043] Fig.18 yes Figure 1 The cross-sectional schematic diagram of the initial waveform of the wavy filter sheet after forming is shown;

[0044] Fig.19 yes Fig.18 A schematic cross-sectional view of the initial waveform after the denting step;

[0045] Fig. 20 yes Fig.19 A schematic cross-sectional view of the waveform shown after the crushing step;

[0046] In the figure, 10, flat filter sheet; 20, corrugated filter sheet; 20A, corrugated filter sheet material; 21, wave crest; 22, wave trough; 23, valley protrusion; 24, pressed closed end; 25, molten welding section; 26, flow gap; 27, peak protrusion; 28, flow gap; 30, sealant plugging section; 31, inlet channel; 32, outlet channel; 41, first pressure wave wheel; 411, first protrusion; 412 , first groove; 413, annular groove; 42, second pressure wave wheel; 421, second protrusion; 422, second groove; 51, main ultrasonic welding head; 52, side ultrasonic welding head; 61, embossing wheel; 611, embossing wheel teeth; 62, forming roller; 70, stripping module; 71, stripping teeth; 72, filter material guide rail; 80, air cooling module; 90, trimming module; 100A, filter medium group; 100B, filter medium group. DETAILED DESCRIPTION

[0047] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0048] The filter medium sheet is the basis of the filter medium group, the filter medium group is the basis of the filter element, and the filter element is the basis of the filter. The inventive concept created by the present invention is explained below from several aspects, including the filter medium sheet, the filter medium group, and the filter medium group molding equipment / molding method.

[0049] Filter media sheet

[0050] Example 1

[0051] like Figure 1As shown, a filter medium sheet includes a corrugated filter sheet 20 and a flat filter sheet 10 , wherein the corrugated filter sheet 20 has a plurality of alternately arranged crests 21 and troughs 22 , and the crests 21 and troughs 22 extend from a first end to a second end of the corrugated filter sheet 20 .

[0052] like Figure 2 , Figure 4A and Figure 4B As shown, the bottom of the trough 22 is provided with a trough protrusion 23 protruding outward, the trough protrusion 23 extends along the extension direction of the trough 22 and is intermittently arranged, the trough protrusion 23 is melt-welded with the flat filter sheet 10, and a flow gap 26 is formed between two adjacent trough protrusions 23 (see Figure 1 and Figure 4A ).

[0053] like Figure 2 and Figure 3 As shown, the corrugated filter sheet 20 and the flat filter sheet 10 are pressed together near the first end to form a pressed portion, and the pressed portion is melt-welded to form a pressed closed end 24 through which fluid cannot pass.

[0054] Compared with the prior art, the invention, on the one hand, reduces the amount of glue used between the two layers of sheet materials due to the use of a fusion welding process, reduces manufacturing costs, reduces product weight, and saves resources. On the other hand, since the valley protrusions 23 are intermittently arranged, a flow gap 26 is formed between two adjacent valley protrusions 23. This structure reduces the contact area between the two layers of filter material. When in use, these non-contact flow gaps 26 can increase the flow area of ​​the fluid (such as air), thereby improving the utilization rate of the filter medium, increasing the service life of the filter material, and reducing fluid resistance. The invention is not limited to the structure of using protrusions to form the flow gap, and other structures can also be used, which will be described in detail in the following embodiment 3.

[0055] As a preferred method, see Figure 3 , Fig.16 as well as Fig.19 and Fig. 20 At least one wave crest of the corrugated filter sheet 20 is depressed to form two short wave crests, and the two short wave crests are pressed down to tilt to the same side. The purpose of this is to make the transition between the pressed part and the non-pressed part smoother, which is conducive to reducing the resistance of air intake or air outlet.

[0056] Example 2

[0057] like Figure 5A and Figure 5BAs shown in the figure, it can be seen that the wavy filter sheet material is not only provided with a valley protrusion 23 protruding outward at the bottom of the valley 22, but also provided with a peak protrusion 27 protruding outward at the top of the peak 21. The peak protrusion 27 extends along the extension direction of the peak 21 and is intermittently provided, and a flow gap 28 is formed between two adjacent peak protrusions. Although the peak protrusion 27 is not melt-welded with another layer of planar filter sheet material when stacking or winding to form a filter medium group, the existence of the peak protrusion 27 and the flow gap 28 also increases the flow area of ​​the fluid, further improves the utilization rate of the filter medium, increases the service life of the filter material, and reduces the fluid resistance.

[0058] Of course, if only the peak protrusion 27 is provided without the valley protrusion 23, a certain effect of increasing the fluid flow area can also be achieved.

[0059] Example 3

[0060] like Figure 6 to Figure 9 As shown, another structure of another filter medium sheet is shown, that is, no peak protrusion 27 is set at the peak of the wave crest 21, and no valley protrusion 23 is set at the bottom of the wave trough 22. Instead, the wavy filter sheet 20 and the flat filter sheet 10 are intermittently melt-welded together along the extension direction of the wave trough 22. When in use, the non-melt-welded part is separated from the contact between the two parts due to the pressure of the fluid to form a flow gap. Figure 8 The diagram shows the cross section of the non-molten welded part. Fig. 9 Shown is a cross-sectional view at the fusion weld section 25 .

[0061] In the invention, for the filter medium sheet, the peak protrusion, the valley protrusion or the melt-welded part can be a point structure or a segment structure. The function of melt welding is to fix the wavy filter sheet and the flat filter sheet together, which is convenient for the stacking or winding of the filter medium group, and can also fix the waveform of the wavy filter sheet.

[0062] In the present invention, the fusion welding method is not limited to hot plate welding, hot melt welding, ultrasonic welding, rolling welding and the like. The present invention will focus on how to use ultrasonic welding technology to manufacture filter medium sheets in the following section.

[0063] In the invention, the waveform cross-section of the wavy filter sheet can be regular or irregular, and at the pressing portion, the wave crest of the wavy filter sheet can be pressed to one side or to both sides.

[0064] Filter media group

[0065] Example 4

[0066] like Fig.10 As shown, the filter medium group 100A is formed by stacking a plurality of filter medium sheets, and the filter medium sheets can be any one of the aforementioned embodiment 1, embodiment 2 or embodiment 3, and the specific structure thereof will not be described in detail herein.

[0067] As a common part, the filter medium sheet material at least includes a corrugated filter sheet 20 and a flat filter sheet 10, the corrugated filter sheet 20 has a plurality of alternately arranged crests and troughs, the crests and troughs extending from the first end to the second end of the corrugated filter sheet 20; the troughs of the corrugated filter sheet 20 are melt-welded with the flat filter sheet 20, which can be melt-welded as a whole or melt-welded intermittently, and when the non-melt-welded part is in use, under the action of fluid pressure, the contact between the two parts at the joint is separated to form a flow gap; it can also be melt-welded with the flat filter sheet 10 through the valley protrusion 23, and the valley protrusion 23 extends along the extension direction of the valley 22 and is intermittently arranged (see Example 1 Figure 4A and 4B ), the setting of the valley protrusion 23 can further increase the flow area and improve the use effect. The wavy filter sheet 20 and the flat filter sheet 10 are pressed together near the first end to form a pressing part, and the pressing part is melt-welded to form a pressing closed end through which the fluid cannot pass. The wave crest of the wavy filter sheet 20 and the other flat filter sheet 10 are provided with a sealant sealing section 30 near the second end through which the fluid cannot pass. Figure 1 or Figure 6 The sealant plugging section 30 is shown to illustrate the path of air flow. Figure 1 or Figure 6 Arrows are also marked on the top. Although the sealant plugging section 30 is not a component of the filter medium sheet, it is arranged on the Figure 1 or Figure 6 The filtering principle of the filter medium group 100A can be better understood. Fig.10 As shown, the filter medium group 100A forms alternately arranged inlet channels 31 and outlet channels 32 by pressing the closed end 24 and the sealant plugging section 30 .

[0068] If the filter medium group 100A adopts the filter medium sheet material of Example 2, since it has a peak protrusion 27 protruding outward at the peak of the wave peak 21, when the filter medium group 100A is stacked, although the peak protrusion 27 is only bonded to another layer of flat filter sheet material without being melt-welded, the presence of the peak protrusion 27 and the flow gap 28 also increases the flow area of ​​the fluid, further improving the utilization rate of the filter medium, increasing the service life of the filter material, and reducing the fluid resistance.

[0069] Example 5

[0070] like Fig.11 and Fig.12 As shown together, the filter medium group 100B is formed by winding a filter medium sheet, and its cross section is in the shape of a stadium track. The filter medium sheet can be any one of the aforementioned embodiments 1, 2 or 3, and its specific structure is not described in detail here. Fig.12 The enlarged view shows the first end, that is, the pressed closed end 24 (see Figure 1 or Figure 6 ), the inlet channel 31 is represented by a colorless area, and the outlet channel 32 is represented by a black area.

[0071] Of course, the filter medium mass can have various shapes, for example, it can also be round.

[0072] Filter media mass forming equipment and forming method

[0073] Taking the filter medium group 100B shown in Example 5 as an example, the forming method of the filter medium group and the equipment used therein are described in detail. The contribution of the invention to the prior art is mainly reflected in the forming method and forming equipment of the filter medium sheet. As for how to wind the filter medium sheet into the filter medium group 100B, how to apply glue to form a sealant plugging section, etc., it is well known to ordinary technicians in the field and will not be repeated. The following only focuses on the forming method and forming equipment of the filter medium sheet.

[0074] Fig.13 A filter medium mass forming device is shown, which mainly shows the structure and principle of the filter medium sheet forming unit. The concept of the invention is explained from both the device and method perspectives.

[0075] like Fig.13 As shown, the filter medium sheet forming unit includes a wave forming module, and the first wave pressing wheel 41 and the second wave pressing wheel 42 are important components of the wave forming module. The first wave pressing wheel 41 is a wave pressing wheel that can heat the wave-shaped filter sheet material 20A to be formed, and the second wave pressing wheel 42 is a wave pressing wheel that can heat the wave-shaped filter sheet material 20A to be formed and can adsorb the formed wave-shaped filter sheet 20 to the surrounding surface. The first wave pressing wheel 41 and the second wave pressing wheel 42 are used to implement the wave forming step of pressing a wave-shaped filter sheet material 20A into a wave-shaped filter sheet 20. After forming, the wave-shaped filter sheet 20 has a plurality of alternating crests and troughs, and the crests and the troughs extend from the first end to the second end of the wave-shaped filter sheet. See FIG. 2 for the waveform cross-section after forming. Fig.18 .

[0076] like Fig. 13BAs shown, the second pressing wheel 42 has second protrusions 421 disposed at intervals on the tooth tops of the forming wheel teeth, and the first pressing wheel 41 has first grooves 412 disposed at intervals in the tooth grooves of the forming wheel teeth. When the second protrusions 421 and the first grooves 412 are pressed together, a valley protrusion 23 is formed at the bottom of the valley of the wavy filter sheet 20 (see Figure 5B ). In order to form the peak protrusion 27, as Fig. 13B and Fig.15 As shown, first protrusions 411 are arranged at intervals on the tooth tops of the forming teeth of the first pressure wave wheel 41, and second grooves 422 are arranged at intervals in the tooth grooves of the forming teeth of the second pressure wave wheel 42. When the first protrusions 411 and the second grooves 422 are pressed together, the peak protrusions 27 of the wave crest of the wave-shaped filter sheet 20 are formed (see Figure 5B The first protrusion 411 and the second protrusion 421 may be integrally formed with the corresponding molded gear teeth, or may be fixed to the corresponding molded gear teeth in an inlaid manner.

[0077] There is a phenomenon that when the height of the second protrusion 421 is lower than a specified value, although it can form a valley protrusion at the bottom of the valley of the wavy filter sheet 20 in the wave forming step, after the sheet fixing step, the valley protrusion of the wavy filter sheet 20 is flattened, and only the molten welding section 25 is formed at the valley protrusion. The filter medium sheet embodiment 3 is manufactured in this way. Figures 6 to 9 Moreover, as the material and thickness of the corrugated filter sheet 20 are different, the height value of the second protrusion 421 that produces the above changes is also different.

[0078] Continue to disclose the invention.

[0079] like Fig.13 As shown, the forming equipment disclosed by the invention is provided with an ultrasonic welding module. The structure and principle of the ultrasonic welding module are well known in the industry. It mainly includes an ultrasonic generator, a transducer, a horn and a welding head. Ultrasonic welding is to convert a 50 / 60Hz current into high-frequency electrical energy through an ultrasonic generator. The high-frequency electrical energy is converted into mechanical motion of the same frequency again through a transducer. Then the mechanical motion is transmitted to the welding head through a horn device. The welding head transmits the received vibration energy to the joint of the workpiece to be welded. In this area, the vibration energy is converted into heat energy by friction to melt the material to be welded. The ultrasonic welding module created by the invention includes a main ultrasonic welding head 51 and a side ultrasonic welding head 52. The main ultrasonic welding head 51 extends along the extension direction of the crest or trough of the wavy filter sheet 20, and the side ultrasonic welding head 52 extends in a direction perpendicular to the crest or trough.

[0080] like Fig.14As shown, the main ultrasonic horn 51 is located at a specified distance below the second wave pressure wheel 42, and this distance allows the trough of the wavy filter sheet 20 located on the formed tooth to be melt-welded with the corresponding portion of the planar filter sheet 10 when a formed tooth of the second wave pressure wheel 42 approaches the main ultrasonic horn 51. Of course, if a valley protrusion 23 is provided at the bottom of the valley of the wavy filter sheet 20, when a formed tooth of the second wave pressure wheel 42 approaches the main ultrasonic horn 51, the valley protrusion 23 of the wavy filter sheet located on the formed tooth will be melt-welded with the corresponding portion of the planar filter sheet. Throughout the entire length, the main ultrasonic horn 51 can be divided into multiple parts. The invention is divided into three parts, see Fig.15 .

[0081] In summary, since the main ultrasonic welding head 51 is arranged below the second wave pressing wheel 42, the trough of the wavy filter sheet 20 can be attached to a flat filter sheet 10 and melt-welded together through the ultrasonic system. The melting welding can be continuous or intermittent. The trough protrusion of the trough of the wavy filter sheet can also be melt-welded to the flat filter sheet. The essence of this step is to fix the sheet, so this step can also be called a sheet fixing step.

[0082] There is a phenomenon that when the second bump 421 (see Fig. 13B ) is lower than a specified value (of course, the first groove 412 corresponding thereto should also be shallower at this time), although it can be deformed at the bottom of the valley of the wavy filter sheet 20 in the wave forming step, after the sheet fixing step, the valley protrusion of the wavy filter sheet 20 is flattened again, and only the molten welding sections 25 arranged at intervals are formed at the valley protrusion. The filter medium sheet embodiment 3 is manufactured in this way, as shown in FIG. Figures 6 to 9 Moreover, as the material and thickness of the corrugated filter sheet 20 vary, the height value of the second protrusion 421 and the depth value of the first groove 412 that produce the above changes will also vary.

[0083] Continue to disclose the invention.

[0084] The closed end sealing step is a key point in the formation of the filter medium sheet material, and the closed end sealing step includes a pressing step of pressing the corrugated filter sheet material 20 and the flat filter sheet material 10 near the first end to form a pressing part, and a melting welding step of melting and welding the pressing part through the ultrasonic welding module to form a pressed closed end 24 through which the fluid cannot pass. Among them, the pressing part step includes a denting step and a crushing step, wherein the denting step includes a step of denting at least one crest of the corrugated filter sheet material to form two short crests, and the crushing step includes a step of pressing the two short crests downward and tilting them to the same side to form a pressing part on the flat filter sheet material.

[0085] like Fig.13 , Fig.16 and Fig.17 As shown, in order to implement the above steps, the molding device created by the present invention sequentially arranges a denting wheel 61 and a molding roller 62 above the side ultrasonic horn 52, and the denting step of the wavy filter sheet is jointly realized by the denting wheel 61 and the side ultrasonic horn 52, and the crushing step is jointly realized by the side ultrasonic horn 52 and the molding roller 62. The denting wheel 61 and the molding roller 62 form a closed-end closed module, and if the cross-sectional shape of the waveform after crushing is not considered, only the molding roller 62 can be used.

[0086] The embossing wheel 61 is provided with embossing wheel teeth 611. The side ultrasonic welding head 52 supports the wavy filter sheet 20 and the flat filter sheet 10. The embossing wheel teeth 611 press the top of a wave crest of the wavy filter sheet 20 into two short wave crests. The waveform cross section after embossing is shown in FIG. Fig.19 .

[0087] The forming roller 62 further presses the concave wavy filter sheet 20 downward and tilts it to the same side on the flat filter sheet 10 to form the pressing part. The wavy cross section after pressing is shown in FIG. Fig. 20 The side ultrasonic welding head 52 and the forming roller 62 together melt and weld the pressed part into a pressed closed end 24. The cross-sectional shape of the pressed closed end 24 is shown in FIG. Figure 3 .

[0088] Continue to disclose the invention.

[0089] The molding method created by the present invention also includes a peeling step, wherein the peeling step is a step of peeling the molded wavy filter sheet 20 adhered to the first wave pressing wheel 41 from the first wave pressing wheel 41 through the peeling module 70 .

[0090] like Fig.13 and Fig.13A As shown, the stripping module 70 includes a stripping tooth 71 and a filter material guide rail 72. The stripping tooth 71 is fixed to the filter material guide rail 72 and extends into the annular groove 413 of the first pressure wave wheel 41. The filter material guide rail 72 is arc-shaped and is arranged on one side of the second pressure wave wheel 42. Generally, the formed wavy filter sheet can be adsorbed on the second pressure wave wheel 42 by negative pressure. The stripping module 70 can further improve the reliability of stripping. The arc-shaped filter material guide rail 72 can make the formed hot wavy filter sheet stick to the second pressure wave wheel 42 to prevent it from falling.

[0091] Continue to disclose the invention.

[0092] like Fig.13As shown, the forming method created by the present invention is provided with a cooling step after the wave forming step, and the cooling step is a step of cooling and shaping the heat-formed wave-shaped filter sheet, and the cooling step is preferably an air cooling step. In the present invention, the air cooling step is implemented by an air cooling module 80, for example, a cooling frame box, the cooling frame box is connected to an external industrial air conditioner, and the cooling frame box has an outlet for blowing air to the second pressure wave wheel 42 and the closed end closed module (in this embodiment, the pressure concave wheel 61) adjacent to the cooling outlet.

[0093] like Fig.13 As shown, the molding device created by the present invention also includes a trimming module 90, which is located downstream of the molding roller 62. Since the present invention adopts ultrasonic welding technology, compared with the gluing technology, there is no disadvantage of glue dripping, so the trimming width is greatly reduced.

[0094] The present invention is not limited to the above embodiments, and all improvements made based on the concept, principle, structure and method of the present invention will fall within the protection scope of the present invention.

Claims

1. A filter medium mass forming device, comprising: The filter medium sheet forming unit comprises a wave forming module, the wave forming module comprises a first wave pressing wheel and a second wave pressing wheel, the first wave pressing wheel and the second wave pressing wheel are used to press a wave-shaped filter sheet material into a wave-shaped filter sheet; characterized in that the filter medium sheet forming unit also comprises An ultrasonic welding module, the ultrasonic welding module comprising a main ultrasonic horn and a side ultrasonic horn, the main ultrasonic horn extending along the extension direction of the crest or trough of the wavy filter sheet, and the side ultrasonic horn extending in a direction perpendicular to the crest or trough; The main ultrasonic welding head is located below the second wave pressing wheel, and the two work together to attach the trough of the wavy filter sheet to a flat filter sheet and melt-weld them together; A closed-end closed module, the closed-end closed module includes a forming roller, the forming roller is located on the downstream side of the second wave pressure wheel and is arranged above the side ultrasonic horn, the side ultrasonic horn and the forming roller work together to press the wavy filter sheet and the flat filter sheet near the first end to form a pressing portion, and melt-weld the pressing portion to form a pressed closed end through which fluid cannot pass.

2. The filter medium mass forming device according to claim 1, characterized in that: Second protrusions are arranged at intervals on the tooth tops of the forming teeth of the second pressure wave wheel, and first grooves are arranged at intervals in the tooth grooves of the forming teeth of the first pressure wave wheel. When the second protrusions and the first grooves are pressed together, a valley protrusion is formed at the bottom of the valley of the wavy filter sheet. When a forming tooth of the second pressure wave wheel approaches the main ultrasonic welding head, the valley protrusion of the wavy filter sheet located on the forming tooth is melt-welded to the corresponding part of the planar filter sheet.

3. The filter medium mass forming device according to claim 1, characterized in that: The first pressure wheel has first protrusions arranged at intervals on the tooth tops of the forming teeth, and the second pressure wheel has second grooves arranged at intervals in the tooth grooves of the forming teeth. When the first protrusions and the second grooves are pressed together, the peak protrusions of the wave crests of the wavy filter sheet are formed.

4. The filter medium mass forming device according to claim 1, characterized in that: The closed-end closing module includes a embossing wheel, which is located on the upstream side of the forming roller and the downstream side of the second wave-pressing wheel, and is arranged above the side ultrasonic horn. The embossing wheel and the side ultrasonic horn work together to emboss at least one wave crest of the wavy filter sheet to form two short wave crests. The side ultrasonic horn and the forming roller work together to further press the embossed wavy filter sheet and tilt it to the same side of the flat filter sheet to form the pressing portion. The side ultrasonic horn and the forming roller work together to melt-weld the pressing portion into a pressed closed end.

5. The filter medium mass forming device according to claim 4, characterized in that: The embossing wheel is provided with embossing wheel teeth, the side ultrasonic welding head supports the wavy filter sheet and the flat filter sheet, and the embossing wheel teeth press a wave crest of the wavy filter sheet into two short wave crests after being formed.

6. The filter medium mass forming device according to claim 1, characterized in that: The first wave pressing wheel is a wave pressing wheel that can heat the wavy filter sheet material to be formed, and the second wave pressing wheel is a wave pressing wheel that can heat the wavy filter sheet material to be formed and can adsorb the formed wavy filter sheet to the peripheral surface.

7. The filter medium mass forming device according to claim 1, characterized in that: The filter medium sheet forming unit also includes a stripping module, which includes a stripping tooth and a filter material guide rail. The stripping tooth is fixed to the filter material guide rail and extends into the annular groove of the first pressure wheel. The filter material guide rail is arc-shaped and is arranged on one side of the second pressure wheel.

8. The filter medium mass forming device according to claim 1, characterized in that: The filter medium sheet forming unit further includes a cooling module for cooling and shaping the heat-formed corrugated filter sheet.

9. The filter medium mass forming device according to claim 8, characterized in that: The cooling module is an air-cooling module, and the air-cooling module includes a cooling frame box, and the cooling frame box has an air outlet for blowing air to the second pressure wave wheel and the closed end closed module adjacent to the closed end for cooling.

10. The filter medium mass forming device according to claim 1, characterized in that: The filter medium sheet forming unit further includes a trimming module, which is located at a downstream side of the forming roller.

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