Multifunctional composite filter material and application thereof in food industry

Abstract

The invention discloses a multifunctional composite filter material and application thereof in food industry. The multifunctional composite filter material comprises a filter material main body, the filter material main body comprises a filter layer, a support layer and a protective layer; large-particle suspended solids can be filtered out through the front pre-filtering layer, formaldehyde is rapidly catalyzed and decomposed through nanoscale material metal-grade oxides of the nanoscale formaldehyde filtering and decomposing layer, bacteria and microorganisms can be effectively filtered and intercepted through the enzyme-containing sterilization filtering layer, and meanwhile the sterilization purpose is achieved; through the negative ion purification layer, tiny dust and lampblack particles in air can be electrified and collided and gathered, the filtering layer can easily capture the tiny dust and the lampblack particles, meanwhile, fresh and natural fresh air is emitted, and air pollution particles of 0.1-0.3 micron level can be filtered and decomposed through the HEPA filtering layer, so that the purpose of purifying the air is achieved. Therefore, the filter material main body has the functions of haze removal, formaldehyde removal and sterilization and can cope with various complex air environments, and the performance of the composite filter material is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of filter materials, in particular to a multifunctional composite filter material and application thereof in the food industry. Background Art

[0002] In the food production process, the maintenance of the sterile environment is crucial. The sterile environment of the food processing workshop can effectively extend the shelf life of food, improve the quality and safety of food, and reduce pollution and cross infection in the food production process. The air purification device is an important ventilation equipment in the sterile room.

[0003] With the continuous development of society and the acceleration of industrialization, the problem of air pollution is becoming increasingly serious. The fine particles, harmful gases, and various bacteria, viruses and other microorganisms contained in the air seriously threaten people's health. Therefore, higher requirements are placed on the air filter materials in air filter devices.

[0004] The existing patent document with announcement number CN218221493U discloses a composite filter material for a chemical filter, which includes a non-woven fabric layer, an activated carbon layer and a supporting fabric layer arranged in sequence from top to bottom, and has a reasonable design, wherein the non-woven fabric layer, the activated carbon layer and the supporting fabric layer are formed together by a hot melt adhesive thermal composite process, which is convenient for processing and can make the activated carbon layer completely wrapped by the non-woven fabric layer and the supporting fabric layer, and the activated carbon in the activated carbon layer is not easy to fall off, and will not cause cross infection in the clean room. The activated carbon layer includes at least a first activated carbon layer, a second activated carbon layer and a third activated carbon layer, and the adjacent first activated carbon layer, the second activated carbon layer and the third activated carbon layer are separated by an intermediate layer, and the multi-layer activated carbon layer can purify and filter the air in the clean room, and the filtering effect is good, which is worth promoting and applying.

[0005] Although the composite filter material of the above-mentioned chemical filter can solve the corresponding technical problems, it purifies and filters the air only through the activated carbon layer, has a poor filtering effect, a single function, and is difficult to filter microorganisms and bacteria, thus having limitations in use.

[0006] Therefore, a multifunctional composite filter material and its application in food industry are proposed. Summary of the invention

[0007] The technical task of the present invention is to provide a multifunctional composite filter material and its application in the food industry to solve the above problems.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] A multifunctional composite filter material comprises a filter material body;

[0010] Wherein, the filter material body comprises a filter layer, a support layer and a protective layer, and the support layer and the protective layer are respectively arranged at the bottom and the top of the filter layer;

[0011] The filter layer comprises a front pre-filter layer, a nano-level formaldehyde filter and decomposition layer, an enzyme-containing sterilization filter layer, a negative ion purification layer and a HEPA filter layer. The front pre-filter layer, the nano-level formaldehyde filter and decomposition layer, the enzyme-containing sterilization filter layer and the negative ion purification layer are arranged in sequence from top to bottom. The front pre-filter layer and the protective layer are hot-pressed and compounded by a hot-melt adhesive film, and the negative ion purification layer and the support layer are hot-pressed and compounded by a hot-melt adhesive film. The HEPA filter layer is fixedly connected between the front pre-filter layer and the nano-level formaldehyde filter and decomposition layer, and between the nano-level formaldehyde filter and decomposition layer and the enzyme-containing sterilization filter layer, and the enzyme-containing sterilization filter layer is fixedly connected to the top of the negative ion purification layer.

[0012] Preferably, the support layer and the protective layer are both non-woven fabric layers, the front pre-filter layer uses a cotton fiber layer, the HEPA filter layer located on the upper layer uses WELLRON-H grade filter paper, and the HEPA filter layer located on the lower layer uses WELLRON-H grade filter paper.

[0013] The present invention also provides a preparation device for a multifunctional composite filter material, which is used to realize the preparation and production of the multifunctional composite filter material described above, and includes a supporting mechanism, a composite mechanism, a displacement mechanism, a limiting mechanism, a scraping mechanism, and a fixing mechanism;

[0014] The support mechanism is used to provide an installation base for the displacement mechanism and the fixing mechanism, and can cooperate with the laminating mechanism, the limiting mechanism and the scraping mechanism;

[0015] The laminating mechanism is used to cooperate with the supporting mechanism to perform hot pressing lamination operation on the filter material and the hot melt adhesive film, and the laminating mechanism is arranged above the supporting mechanism;

[0016] The displacement mechanism is used to drive the laminating mechanism to move horizontally to expand the hot pressing and laminating range, and the displacement mechanism is arranged on the top of the supporting mechanism, and the laminating mechanism is arranged on the bottom of the displacement mechanism;

[0017] The limiting mechanism is used to limit the sides of the filter material and the hot melt adhesive film, and the limiting mechanism is arranged on the laminating mechanism;

[0018] The scraping mechanism is used to scrape the surface of the hot melt adhesive film, and the scraping mechanism is arranged at the bottom of the laminating mechanism;

[0019] The fixing mechanism is used to fix the filter material and one end of the hot melt adhesive film, and the fixing mechanism is arranged on one side of the top of the supporting mechanism.

[0020] Preferably, the support mechanism comprises an operating table, the bottom of the operating table is fixedly connected with a support, and the displacement mechanism and the fixing mechanism are both arranged on the top of the operating table;

[0021] Wherein, the laminating mechanism comprises a hot pressing piece for hot pressing and laminating, and a lifting piece for driving the hot pressing piece to move up and down is provided between the hot pressing piece and the displacement mechanism;

[0022] The hot pressing part comprises a first support plate, and second support plates are fixedly connected to both sides of the bottom of the first support plate, and two second support plates are arranged along the width direction of the operating table, and a hot pressing roller is rotatably connected between the two second support plates;

[0023] The lifting member includes a bracket located at the bottom of the displacement mechanism, a cylinder is fixedly connected to the top of the inner cavity of the bracket, an output end of the cylinder is fixedly connected to the top of the first support plate, and both sides of the first support plate are slidably connected to the inner wall surface of the bracket;

[0024] The limiting mechanism includes two groups of side blocks arranged along the length direction of the operating table, the two groups of side blocks are respectively arranged on both sides of the first support plate, each group of side blocks is provided with two along the width direction of the operating table, and the first support plate is provided with a distance adjusting member for adjusting the distance between the two side blocks in each group;

[0025] The side stopper comprises an upper support rod arranged in an inclined manner, the bottom end of the upper support rod is fixedly connected to a middle support rod, a lower branch tube is slidably sleeved on the surface of the middle support rod, a first spring is sleeved on the surface of the middle support rod, the top and bottom ends of the first spring are respectively fixedly connected to the upper support rod and the lower branch tube, and the bottom end horizontal line of the lower branch tube is lower than the bottom horizontal line of the hot pressing roller;

[0026] The adjustable distance member comprises two support shells respectively fixedly connected to two sides of the first support plate, wherein the inner cavity of one of the support shells is rotatably connected with a bidirectional screw, and a screw sleeve is threadedly sleeved on both sides of the surface of the bidirectional screw, and two upper support rods of one group are arranged in a one-to-one correspondence with the two screw sleeves, and the top ends of the two upper support rods of one group respectively penetrate into the inner cavity of the corresponding support shell and are fixedly connected to the corresponding screw sleeve, and the inner cavity of the other support shell is fixedly connected with a guide rod, and a sliding sleeve is slidably sleeved on both sides of the surface of the guide rod, and the two upper support rods of another group are arranged in a one-to-one correspondence with the two sliding sleeves, and the top ends of the two upper support rods of another group respectively penetrate into the inner cavity of the corresponding support shell and are fixedly connected to the corresponding sliding sleeve, and two connecting rods are symmetrically arranged on both sides of the bottom of the first support plate, and the two connecting rods are arranged along the width direction of the operating table, and the two ends of the connecting rods are fixedly connected to the corresponding two upper support rods;

[0027] The scraping mechanism comprises a first support block fixedly connected to the bottom of the first support plate, the bottom of the first support block is integrally formed with an inclined scraper, the scraper is inclined in the same direction as the upper support rod, and the horizontal line of the bottom end of the scraper is in the same straight line as the horizontal line of the bottom of the hot pressing roller;

[0028] The fixing mechanism comprises a clamping piece arranged on the top of the operating table, wherein a positioning piece for positioning the clamping piece is arranged on one of the guide rails;

[0029] The clamping member comprises an L-shaped plate hinged to one side of the top of the operating table, a clamping plate is movably arranged in the inner cavity of the L-shaped plate, a pillar is fixedly connected to the top of the clamping plate, the top end of the pillar movably penetrates to the top of the L-shaped plate and is fixedly connected to a stopper, a second spring is sleeved on the surface of the pillar, and the top and bottom ends of the second spring are fixedly connected to the L-shaped plate and the clamping plate respectively;

[0030] The positioning member comprises a second support block fixedly connected to one of the guide rail surfaces, the top of the second support block is rotatably connected to a baffle, and the bottom of the baffle contacts the top of the L-shaped plate.

[0031] Preferably, through grooves are provided on both sides of the bracket surface, and protrusions are integrally formed on both sides of the first support plate. The protrusions and the through grooves are arranged in a one-to-one correspondence, one side of the protrusion movably penetrates into the inner cavity of the corresponding through groove, and the inner wall surface of the through groove is slidably connected to the surface of the corresponding protrusion.

[0032] Preferably, the displacement mechanism comprises two gantries fixedly connected to the top of the operating table and arranged along the length direction of the operating table, a guide rail arranged parallel to the operating table is fixedly connected between the two gantries, a walking mechanism is provided on the surface of the guide rail, and the bottom of the walking mechanism is fixedly connected to the top of the bracket.

[0033] Preferably, a slide groove is provided on the inner wall surface of the lower branch pipe, and a sliding block capable of sliding in the inner cavity of the slide groove is fixedly connected to one end of the surface of the middle support rod away from the upper support rod.

[0034] Preferably, the bottom end of the lower branch pipe is rotatably connected to a roller.

[0035] Preferably, the length of the first support block is smaller than the length of the scraper, and the connecting rod is located on the side of the first support block and above the scraper.

[0036] The present invention also provides application of the multifunctional composite filter material described above in the food industry.

[0037] Compared with the prior art, the advantages and positive effects of the present invention are:

[0038] 1. The present invention can filter out larger suspended particles through the pre-filter layer, quickly catalyze and decompose formaldehyde through the nano-scale material metal-grade oxide of the nano-scale formaldehyde filtration and decomposition layer, effectively filter and intercept bacteria and microorganisms through the enzyme-containing sterilization filter layer, and at the same time, a large amount of high-efficiency natural lysozyme attached to the enzyme-containing sterilization filter layer can efficiently dissolve the captured microorganisms and bacteria to achieve the purpose of sterilization and make them lose the opportunity to reproduce, thereby preventing secondary pollution. The negative ion purification layer can charge the fine dust and oil fume particles in the air and collide and aggregate, allowing the filter layer to easily capture them, while continuously outputting clean air, increasing the negative ions in the air, and emitting fresh and natural fresh air. The HEPA filter layer can filter and decompose air pollution particles of 0.1 to 0.3 microns, so that the filter material body has the functions of removing haze, removing formaldehyde and sterilizing, can cope with various complex air environments, and greatly improves the performance of the composite filter material;

[0039] 2. The present invention can use the side stoppers to limit the filter material and the hot-melt adhesive film on the operating table, so as to avoid the filter material and the hot-melt adhesive film from being offset. The distance between each group of two side stoppers can be adjusted according to the width of the filter material and the hot-melt adhesive film through the distance adjusting member, and has wide applicability. The scraping mechanism can perform bubble scraping operation after hot pressing and compounding. The fixing mechanism can synchronously fix one end of the filter material and the hot-melt adhesive film, so as to prevent the scraping mechanism from driving the filter material and the hot-melt adhesive film to move synchronously during the scraping operation, thereby helping to improve the hot pressing and compounding quality of the filter material and the hot-melt adhesive film. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the embodiments of the present invention 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 of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0041] Figure 1 It is a schematic cross-sectional view of the structure of the multifunctional composite filter material according to an embodiment of the present invention;

[0042] Figure 2 A schematic cross-sectional view of the structure of the filter layer of the multifunctional composite filter material according to an embodiment of the present invention;

[0043] Figure 3 A three-dimensional schematic diagram of the structure of a device for preparing a multifunctional composite filter material according to an embodiment of the present invention Figure 1 ;

[0044] Figure 4 A three-dimensional schematic diagram of the structure of a device for preparing a multifunctional composite filter material according to an embodiment of the present invention Figure 2 ;

[0045] Figure 5 It is a structural stereoscopic schematic diagram of a laminating mechanism and a limiting mechanism of a device for preparing a multifunctional composite filter material according to an embodiment of the present invention;

[0046] Figure 6 It is a schematic three-dimensional diagram of the partial structure of the laminating mechanism and the limiting mechanism of the preparation device of the multifunctional composite filter material according to the embodiment of the present invention;

[0047] Figure 7 It is a structural stereoscopic schematic diagram of a laminating mechanism, a limiting mechanism and a scraping mechanism of a device for preparing a multifunctional composite filter material according to an embodiment of the present invention;

[0048] Figure 8 It is a schematic three-dimensional diagram of the partial structure of the side block and the distance adjusting member of the preparation device of the multifunctional composite filter material according to the embodiment of the present invention;

[0049] Fig. 9 It is a schematic structural three-dimensional cutaway diagram of a side stopper of a device for preparing a multifunctional composite filter material according to an embodiment of the present invention;

[0050] Fig.10 It is a structural stereoscopic schematic diagram of a fixing mechanism of a device for preparing a multifunctional composite filter material according to an embodiment of the present invention;

[0051] Fig.11 It is a schematic diagram of a three-dimensional cross-section of the structure of a cutting mechanism of a device for preparing a multifunctional composite filter material according to an embodiment of the present invention.

[0052] In the figure: 100, filter material body; 110, filter layer; 111, pre-filter layer; 112, nanometer formaldehyde filter decomposition layer; 113, enzyme-containing sterilization filter layer; 114, negative ion purification layer; 115, HEPA filter layer; 120, support layer; 130, protective layer;

[0053] 200, support mechanism; 210, operating table; 220, support;

[0054] 300, laminating mechanism; 310, hot pressing member; 311, first support plate; 3111, convex block; 312, second support plate; 313, hot pressing roller; 320, lifting member; 321, bracket; 3211, through groove; 322, cylinder;

[0055] 400, displacement mechanism; 410, gantry; 420, guide rail; 430, walking mechanism;

[0056] 500, limit mechanism; 510, side stopper; 511, upper support rod; 512, middle support rod; 5121, slider; 513, lower branch pipe; 5131, slide groove; 514, first spring; 515, roller; 520, distance adjusting member; 521, support housing; 5211, slide hole; 522, bidirectional screw; 523, screw sleeve; 524, guide rod; 525, sleeve; 526, hand wheel; 530, connecting rod;

[0057] 600, scraping mechanism; 610, first support block; 620, scraper;

[0058] 700, fixing mechanism; 710, clamping member; 711, L-shaped plate; 712, clamping plate; 7121, rubber pad; 713, pillar; 714, stopper; 715, second spring; 720, positioning member; 721, second support block; 722, stopper;

[0059] 800, cutting mechanism; 810, cutting piece; 811, protective shell; 812, electric telescopic rod; 813, mounting plate; 814, cutter; 820, supporting piece; 821, supporting plate; 822, cutting groove. DETAILED DESCRIPTION

[0060] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0061] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0062] Example 1

[0063] like Figure 1-Figure 2 As shown, a multifunctional composite filter material according to an embodiment of the present invention includes a filter material body 100;

[0064] The filter material body 100 includes a filter layer 110, a support layer 120 and a protective layer 130. The support layer 120 and the protective layer 130 are respectively arranged at the bottom and the top of the filter layer 110.

[0065] The filter layer 110 includes a pre-filter layer 111, a nano-level formaldehyde filter and decomposition layer 112, an enzyme-containing sterilization filter layer 113, a negative ion purification layer 114, and a HEPA filter layer 115. The pre-filter layer 111, the nano-level formaldehyde filter and decomposition layer 112, the enzyme-containing sterilization filter layer 113, and the negative ion purification layer 114 are arranged sequentially from top to bottom. The pre-filter layer 111 and the protective layer 130 are hot-pressed and compounded by a hot-melt adhesive film, and the negative ion purification layer 114 and the support layer 120 are hot-pressed and compounded by a hot-melt adhesive film. A HEPA filter layer 115 is fixedly connected between the pre-filter layer 111 and the nano-level formaldehyde filter and decomposition layer 112, and between the nano-level formaldehyde filter and decomposition layer 112 and the enzyme-containing sterilization filter layer 113, and the enzyme-containing sterilization filter layer 113 is fixedly connected to the top of the negative ion purification layer 114.

[0066] The supporting layer 120 and the protective layer 130 are both non-woven fabric layers. The nano-scale formaldehyde filtration and decomposition layer 112 adopts an activated silicon formaldehyde removal particle layer with nano-gel Nano-Gel and graphene as core materials. The front pre-filter layer 111 adopts a cotton fiber layer. The cotton fiber layer has the advantages of being environmentally friendly and non-toxic, and is suitable for the food industry with high air quality. The HEPA filter layer 115 located on the upper layer adopts WELLRON-H11 grade filter paper, and the HEPA filter layer 115 located on the lower layer adopts WELLRON-H13 grade filter paper.

[0067] Example 2

[0068] like Figure 3-Figure 10 As shown, a preparation device for a multifunctional composite filter material provided in this embodiment is used to realize the preparation and production of the above-mentioned multifunctional composite filter material, including a supporting mechanism 200, a laminating mechanism 300, a displacement mechanism 400, a limiting mechanism 500, a scraping mechanism 600 and a fixing mechanism 700;

[0069] The support mechanism 200 is used to provide an installation base for the displacement mechanism 400 and the fixing mechanism 700, and can cooperate with the laminating mechanism 300, the limiting mechanism 500 and the scraping mechanism 600;

[0070] The laminating mechanism 300 is used to cooperate with the supporting mechanism 200 to perform hot pressing lamination operation on the filter material and the hot melt adhesive film, and the laminating mechanism 300 is arranged above the supporting mechanism 200;

[0071] The displacement mechanism 400 is used to drive the laminating mechanism 300 to move horizontally to expand the hot pressing lamination range, and the displacement mechanism 400 is arranged on the top of the supporting mechanism 200, and the laminating mechanism 300 is arranged on the bottom of the displacement mechanism 400;

[0072] The limiting mechanism 500 is used to limit the sides of the filter material and the hot melt adhesive film, and the limiting mechanism 500 is arranged on the laminating mechanism 300;

[0073] The scraping mechanism 600 is used to scrape the surface of the hot melt adhesive film, and the scraping mechanism 600 is arranged at the bottom of the laminating mechanism 300;

[0074] The fixing mechanism 700 is used to fix the filter material and one end of the hot melt adhesive film, and the fixing mechanism 700 is disposed on one side of the top of the supporting mechanism 200 .

[0075] The supporting mechanism 200 includes a horizontally arranged operating table 210 , a support 220 is fixedly connected to the bottom of the operating table 210 , and the displacement mechanism 400 and the fixing mechanism 700 are both arranged on the top of the operating table 210 .

[0076] The laminating mechanism 300 includes a hot pressing member 310 for hot pressing and laminating, and a lifting member 320 is provided between the hot pressing member 310 and the displacement mechanism 400 for driving the hot pressing member 310 to move up and down;

[0077] The hot pressing member 310 includes a first support plate 311 arranged horizontally, and second support plates 312 are fixedly connected to both sides of the bottom of the first support plate 311. The two second support plates 312 are arranged along the width direction of the operating table 210, and a hot pressing roller 313 is rotatably connected between the two second support plates 312.

[0078] The lifting member 320 includes a bracket 321 located at the bottom of the displacement mechanism 400. The top of the inner cavity of the bracket 321 is fixedly connected to a vertically arranged cylinder 322. The output end of the cylinder 322 is fixedly connected to the top of the first support plate 311. Both sides of the first support plate 311 are slidably connected to the inner wall surface of the bracket 321. By starting the cylinder 322, the hot pressing member 310 can be driven to move upward or downward in the inner cavity of the bracket 321, and the height between the hot pressing roller 313 and the operating table 210 can be adjusted according to the thickness of the filter material and the hot melt adhesive film or the hot pressing composite pressure requirement, which helps to improve the hot pressing member 310. Scope of application: Through grooves 3211 are provided on both sides of the surface of the bracket 321, and protrusions 3111 are integrally formed on both sides of the first support plate 311. The protrusions 3111 and the through grooves 3211 are arranged in a one-to-one correspondence. One side of the protrusion 3111 movably penetrates into the inner cavity of the corresponding through groove 3211, and the inner wall surface of the through groove 3211 is slidably connected with the surface of the corresponding protrusion 3111. When the first support plate 311 moves up and down, the protrusion 3111 is driven to slide up and down synchronously in the inner cavity of the through groove 3211, thereby limiting the first support plate 311, so that the first support plate 311 can move up and down stably.

[0079] The displacement mechanism 400 includes two gantries 410 which are vertically fixedly connected to the top of the operating table 210 and arranged along the length direction of the operating table 210. A guide rail 420 which is arranged parallel to the operating table 210 is fixedly connected between the two gantries 410. A walking mechanism 430 is provided on the surface of the guide rail 420. The bottom of the walking mechanism 430 is fixedly connected to the top of the bracket 321. By starting the walking mechanism 430, the laminating mechanism 300 can be driven to move horizontally on the guide rail 420 to expand the hot pressing and laminating range of the laminating mechanism 300. A hot melt adhesive film roller is installed on the other guide rail 420.

[0080] The limiting mechanism 500 includes two groups of side blocks 510 arranged along the length direction of the operating table 210. The two groups of side blocks 510 are respectively arranged on both sides of the first support plate 311. Each group of side blocks 510 is provided with two along the width direction of the operating table 210. The first support plate 311 is provided with a distance adjusting member 520 for adjusting the distance between the two side blocks 510 in each group.

[0081] The side stopper 510 includes an upper support rod 511 which is arranged obliquely, and a middle support rod 512 is fixedly connected to the bottom end of the upper support rod 511, and a lower branch pipe 513 is slidably sleeved on the surface of the middle support rod 512, and a first spring 514 is sleeved on the surface of the middle support rod 512, and the top and bottom ends of the first spring 514 are respectively fixedly connected to the upper support rod 511 and the lower branch pipe 513, and the bottom end horizontal line of the lower branch pipe 513 is lower than the bottom horizontal line of the hot pressing roller 313, and the lower branch pipe 513 can be used to limit the side of the filter material and the hot melt adhesive film. , to avoid the phenomenon of deviation between the filter material and the hot melt adhesive film. At the same time, when the displacement mechanism 400 drives the laminating mechanism 300 to move horizontally, it can drive the limiting mechanism 500 to move synchronously, so that the side limit can be carried out synchronously with the hot pressing laminating operation; and because there is a height difference between the lower branch pipe 513 and the hot pressing roller 313, when the lifting member 320 drives the hot pressing member 310 and the lifting member 320 to move downward, the lower branch pipe 513 can first contact with the top of the operating table 210, so as to correct the hot pressing first; the inner part of the lower branch pipe 513 The wall surface is provided with a slide groove 5131, and one end of the surface of the middle support rod 512 away from the upper support rod 511 is fixedly connected with a slider 5121 that can slide in the inner cavity of the slide groove 5131. When the bottom of the roller 515 is squeezed by the operating table 210, the lower branch pipe 513 can be forced to slide on the surface of the middle support rod 512, thereby driving the slide groove 5131 to move synchronously, so that the slider 5121 slides in the inner cavity of the slide groove 5131, thereby guiding the lower branch pipe 513, so that the lower branch pipe 513 can be stably moved on the middle support rod 512. The surface of the rod 512 slides, and the lower branch pipe 513 can be prevented from sliding off the surface of the middle branch rod 512 due to excessive movement. The central axes of the upper branch rod 511, the middle branch rod 512 and the lower branch pipe 513 are on the same oblique line; the bottom end of the lower branch pipe 513 is rotatably connected to a roller 515, and the roller 515 can reduce the friction between the bottom end of the lower branch pipe 513 and the top of the operating table 210, which helps to improve the flexibility of the lower branch pipe 513 when it moves horizontally on the top of the operating table 210, avoiding the phenomenon of jamming, so as to ensure the smoothness of hot pressing and compounding;

[0082] The distance adjusting member 520 includes two support shells 521 respectively fixedly connected horizontally to the two sides of the first support plate 311, wherein the inner cavity of one support shell 521 is rotatably connected with a bidirectional screw rod 522, and both sides of the surface of the bidirectional screw rod 522 are threadedly sleeved with a screw sleeve 523, one group of two upper support rods 511 and the two screw sleeves 523 are arranged in a one-to-one correspondence, the top ends of the two upper support rods 511 of one group respectively penetrate into the inner cavity of the corresponding support shell 521 and are fixedly connected to the corresponding screw sleeve 523, the inner cavity of the other support shell 521 is fixedly connected with a guide rod 524 arranged parallel to the bidirectional screw rod 522, and both sides of the surface of the guide rod 524 are slidably sleeved with a sliding sleeve 525, the two upper support rods 511 of another group are arranged in a one-to-one correspondence with the two sliding sleeves 525, the top ends of the two upper support rods 511 of another group respectively penetrate into the inner cavity of the corresponding support shell 521 and are fixedly connected to the corresponding sliding sleeve 525, and two connecting rods 524 are symmetrically arranged on both sides of the bottom of the first support plate 311. 30, two connecting rods 530 are arranged along the width direction of the operating table 210, and the two ends of the connecting rod 530 are fixedly connected to the corresponding two upper support rods 511 respectively. By rotating the bidirectional screw 522, the two screw sleeves 523 can be driven to move toward or away from each other, and then the two upper support rods 511 of one group can be driven to move synchronously. The connecting rod 530 can be used to drive the two upper support rods 511 of the other group to move synchronously, so that the spacing between the two upper support rods 511 of each group can be adjusted according to the width of the filter material and the hot melt adhesive film to improve the application range of the side stopper 510. The bottom of the support shell 521 is provided with a sliding hole 5211 for the upper support rod 511 to slide. The sliding hole 5211 can provide sliding space for the upper support rod 511 and can also guide the upper support rod 511. One end of the bidirectional screw 522 movably penetrates the outer side of the corresponding support shell 521 and is fixedly connected to a hand wheel 526. The hand wheel 526 facilitates the hand to rotate the bidirectional screw 522;

[0083] The scraping mechanism 600 includes a first support block 610 vertically fixedly connected to the bottom of the first support plate 311, and a scraper 620 arranged in an inclined manner is integrally formed at the bottom of the first support block 610. The scraper 620 is in the same inclination direction as the upper support rod 511, and the horizontal line at the bottom of the scraper 620 is in the same straight line as the horizontal line at the bottom of the hot pressing roller 313. When the hot pressing roller 313 contacts the surface of the hot melt adhesive film, the scraper 620 can contact the surface of the hot melt adhesive film synchronously, so that the scraper 620 can perform bubble scraping operation synchronously with the hot pressing laminating operation of the hot pressing roller 313; the length of the first support block 610 is less than the length of the scraper 620, and the connecting rod 530 is located on the side of the first support block 610 and above the scraper 620. The length difference between the first support block 610 and the scraper 620 can provide a movable space for the connecting rod 530, thereby avoiding the phenomenon that the first support block 610 blocks the connecting rod 530.

[0084] The fixing mechanism 700 includes a clamping member 710 disposed on the top of the operating table 210 , and a positioning member 720 for positioning the clamping member 710 is disposed on one of the guide rails 420 ;

[0085] The clamping member 710 includes an L-shaped plate 711 hinged to one side of the top of the operating table 210, a clamping plate 712 is movably provided in the inner cavity of the L-shaped plate 711, and at least two symmetrically arranged pillars 713 are fixedly connected to the top of the clamping plate 712, and the top of the pillar 713 movably penetrates the top of the L-shaped plate 711 and is fixedly connected to a stopper 714, and a second spring 715 is sleeved on the surface of the pillar 713, and the top and bottom ends of the second spring 715 are respectively fixedly connected to the L-shaped plate 711 and the clamping plate 712, and the bottom of the clamping plate 712 is glued with a rubber The rubber pad 7121, the bottom of the rubber pad 7121 can contact the surface of the hot melt adhesive film. When the clamp 710 is turned over and contacts the surface of the hot melt adhesive film, one end of the hot melt adhesive film can be fixed for subsequent hot pressing and bubble scraping operations. When the clamp 710 is turned over and away from the surface of the hot melt adhesive film, the composite material can be easily taken out. At the same time, the support 713 and the second spring 715 are used in combination, so that the clamp 712 can be adaptively adjusted according to the thickness of the filter material and the thickness of the hot melt adhesive film;

[0086] The positioning member 720 includes a second support block 721 fixedly connected to the surface of one of the guide rails 420, and the top of the second support block 721 is rotatably connected to a baffle 722, and the bottom of the baffle 722 contacts the top of the L-shaped plate 711. By rotating the baffle 722 to the top of the L-shaped plate 711, the clamp 710 can be positioned so that the clamp 710 can be stably maintained in this state, and by rotating the baffle 722 away from the top of the L-shaped plate 711, the clamp 710 can be unlocked, and the clamp 710 can be quickly flipped open to facilitate the material taking and placing operations.

[0087] Example 3

[0088] like Figure 1 , Figure 2 as well as Fig.11 As shown, the preparation device of a multifunctional composite filter material provided in this embodiment is different from that in embodiment 2 in that:

[0089] The device further comprises a cutting mechanism 800 for cutting the hot melt adhesive film, and the cutting mechanism 800 is disposed on the displacement mechanism 400 .

[0090] The cutting mechanism 800 includes a supporting member 820 of a cutting member 810 disposed on the guide rail 420 and arranged up and down, wherein the cutting member 810 is located above the hot melt adhesive film roller, and the supporting member 820 is located below the hot melt adhesive film;

[0091] The cutting piece 810 includes a protective shell 811 fixedly connected to one side of the guide rail 420 and having an open bottom structure. An electric telescopic rod 812 is vertically installed on the top of the inner cavity of the protective shell 811. The output end of the electric telescopic rod 812 is horizontally fixedly connected to a mounting plate 813. The surface of the mounting plate 813 is slidably connected to the inner wall surface of the protective shell 811. A cutter 814 is installed at the bottom of the mounting plate 813. When the electric telescopic rod 812 is started, the output end of the electric telescopic rod 812 can drive the mounting plate 813 and the cutter 814 to move downward, and then the cutter 814 can be used to cut the hot melt adhesive film.

[0092] The supporting member 820 includes a support plate 821 which is horizontally fixedly connected to one side of the guide rail 420. A cutting groove 822 which is compatible with the cutter 814 is formed on the top of the support plate 821. A gap for the hot melt adhesive film to pass through is formed between the protective shell 811 and the support plate 821. The cutting groove 822 is used in conjunction with the cutter 814 to help improve the cutting effect of the hot melt adhesive film.

[0093] In practical application:

[0094] S1. Place the filter material on the operating table 210 so that one end of the operating table 210 is located at the clamp 710, pull one end of the hot melt adhesive film and align it with the other end of the operating table 210, flip the clamp 710, so that the clamp 710 drives the pillar 713, the stopper 714, the second spring 715, the clamp 712 and the rubber pad 7121 to move synchronously, until the bottom of the rubber pad 7121 contacts the surface of the hot melt adhesive film, the rubber pad 7121 is squeezed, so that the clamp 712 slides in the inner cavity of the L-shaped plate 711, and the clamp 712 drives the pillar 713 As the stopper 714 moves upward synchronously, the second spring 715 contracts under the force. Since the force is mutual, the second spring 715 also gives the clamping plate 712 an identical reaction force, so that the clamping plate 712 and the rubber pad 7121 can stably press the hot melt adhesive film and one end of the filter material; then the baffle plate 722 is rotated so that the bottom of the baffle plate 722 contacts the top of the L-shaped plate 711, thereby positioning the L-shaped plate 711 and keeping the L-shaped plate 711 stably in this state, thereby completing the operation of fixing the ends of the filter material and the hot melt adhesive film;

[0095] S2. Start the cylinder 322, so that the output end of the cylinder 322 drives the first support plate 311 to slide downward in the inner cavity of the bracket 321, and the first support plate 311 drives the protrusion 3111 to slide in the inner cavity of the through groove 3211, so that the first support plate 311 moves stably, and the first support plate 311 drives the second support plate 312, the hot pressing roller 313, the limit mechanism 500 and the scraping mechanism 600 to move downward synchronously. Since the roller 515 is lower than the hot pressing roller 313, the roller 515 first contacts the top of the operating table 210. At this time, the first support plate 311 continues to move downward, and the roller 515 is squeezed, so that the roller 515 drives the lower branch pipe 513 to slide on the surface of the middle support rod 512, and the lower branch pipe 513 The slide groove 5131 is driven to move synchronously, and the slider 5121 slides in the inner cavity of the slide groove 5131, and the first spring 514 is compressed by force until the bottom of the hot pressing roller 313 and the scraper 620 contact the surface of the hot melt adhesive film; then the hand wheel 526 is turned, and the hand wheel 526 drives the bidirectional screw 522 to rotate. Under the action of the thread, the bidirectional screw 522 drives the two screw sleeves 523 on its surface to move toward each other, and the screw sleeve 523 drives a group of side blocks 510 at its bottom to move, and the group of side blocks 510 drives the other group of side blocks 510 to move synchronously through the connecting rod 530 until the surface of the lower branch pipe 513 contacts the side of the filter material or the hot melt adhesive film, so that the side limit operation of the filter material or the hot melt adhesive film can be realized;

[0096] S3, start the walking mechanism 430, the walking mechanism 430 drives the lifting member 320, the hot pressing member 310, the distance adjusting member 520, the side stopper 510, the first support block 610 and the scraper 620 to move synchronously, the hot pressing roller 313 rolls on the surface of the hot melt adhesive film and hot presses the hot melt adhesive film and the filter material, the roller 515 rolls on the top of the operating table 210, and the side edges of the hot melt adhesive film and the filter material can be limited by the lower branch pipe 513, and the bubbles between the hot melt adhesive film and the filter material are scraped off by the scraper 620; finally, start the electric telescopic rod 812, so that the output end of the electric telescopic rod 812 drives the mounting plate 813 and the cutter 814 to move downward until the bottom of the cutter 814 moves to the inner cavity of the cutting groove 822, and the hot melt adhesive film can be cut to remove the composite filter material.

[0097] Through the above specific implementations, those skilled in the art can easily implement the present invention. However, it should be understood that the present invention is not limited to the above specific implementations. On the basis of the disclosed implementations, those skilled in the art can arbitrarily combine different technical features to achieve different technical solutions.

Claims

1. A multifunctional composite filter material, characterized in that: It comprises a filter material body (100); The filter material body (100) comprises a filter layer (110), a support layer (120) and a protective layer (130), wherein the support layer (120) and the protective layer (130) are respectively arranged at the bottom and the top of the filter layer (110); The filter layer (110) comprises a front pre-filter layer (111), a nano-scale formaldehyde filter and decomposition layer (112), an enzyme-containing sterilization filter layer (113), a negative ion purification layer (114) and a HEPA filter layer (115), wherein the front pre-filter layer (111), the nano-scale formaldehyde filter and decomposition layer (112), the enzyme-containing sterilization filter layer (113) and the negative ion purification layer (114) are sequentially arranged from top to bottom, and the front pre-filter layer (111) and the protective layer (130) are connected to each other. The negative ion purification layer (114) and the support layer (120) are hot-pressed and laminated by hot-melt adhesive film, and the HEPA filter layer (115) is fixedly connected between the front pre-filter layer (111) and the nano-scale formaldehyde filter and decomposition layer (112), and between the nano-scale formaldehyde filter and decomposition layer (112) and the enzyme-containing sterilization filter layer (113), respectively, and the enzyme-containing sterilization filter layer (113) is fixedly connected to the top of the negative ion purification layer (114).

2. The multifunctional composite filter material according to claim 1, characterized in that: The support layer (120) and the protective layer (130) are both non-woven fabric layers, the front pre-filter layer (111) is made of a cotton fiber layer, the HEPA filter layer (115) located in the upper layer is made of WELLRON-H11 grade filter paper, and the HEPA filter layer (115) located in the lower layer is made of WELLRON-H13 grade filter paper.

3. The multifunctional composite filter material according to claim 2, characterized in that: The multifunctional composite filter material is prepared by using a preparation device, which comprises a supporting mechanism (200), a laminating mechanism (300), a displacement mechanism (400), a limiting mechanism (500), a scraping mechanism (600) and a fixing mechanism (700); The support mechanism (200) is used to provide an installation base for the displacement mechanism (400) and the fixing mechanism (700), and can cooperate with the laminating mechanism (300), the limiting mechanism (500) and the scraping mechanism (600); The laminating mechanism (300) is used to cooperate with the supporting mechanism (200) to perform a hot-pressing laminating operation on the filter material and the hot-melt adhesive film, and the laminating mechanism (300) is arranged above the supporting mechanism (200); The displacement mechanism (400) is used to drive the laminating mechanism (300) to move horizontally to expand the hot pressing lamination range, and the displacement mechanism (400) is arranged on the top of the supporting mechanism (200), and the laminating mechanism (300) is arranged on the bottom of the displacement mechanism (400); The limiting mechanism (500) is used to limit the sides of the filter material and the hot melt adhesive film, and the limiting mechanism (500) is arranged on the laminating mechanism (300); The scraping mechanism (600) is used to scrape the surface of the hot melt adhesive film, and the scraping mechanism (600) is arranged at the bottom of the laminating mechanism (300); The fixing mechanism (700) is used to fix the filter material and one end of the hot melt adhesive film, and the fixing mechanism (700) is arranged on one side of the top of the supporting mechanism (200).

4. The multifunctional composite filter material according to claim 3, characterized in that: The support mechanism (200) comprises an operating table (210), the bottom of the operating table (210) is fixedly connected to a support (220), and the displacement mechanism (400) and the fixing mechanism (700) are both arranged on the top of the operating table (210), wherein: The laminating mechanism (300) comprises a hot pressing piece (310) for hot pressing and laminating, and a lifting piece (320) for driving the hot pressing piece (310) to move up and down is provided between the hot pressing piece (310) and the displacement mechanism (400); The hot pressing member (310) comprises a first support plate (311), and second support plates (312) are fixedly connected to both sides of the bottom of the first support plate (311), and two second support plates (312) are arranged along the width direction of the operating table (210), and a hot pressing roller (313) is rotatably connected between the two second support plates (312); The lifting member (320) comprises a bracket (321) located at the bottom of the displacement mechanism (400); a cylinder (322) is fixedly connected to the top of the inner cavity of the bracket (321); an output end of the cylinder (322) is fixedly connected to the top of the first support plate (311); and both sides of the first support plate (311) are slidably connected to the inner wall surface of the bracket (321); The limiting mechanism (500) comprises two groups of side blocks (510) arranged along the length direction of the operating table (210), the two groups of side blocks (510) being arranged on both sides of the first support plate (311), and each group of side blocks (510) being arranged with two side blocks along the width direction of the operating table (210), and a distance adjusting member (520) for adjusting the distance between the two side blocks (510) in each group being arranged on the first support plate (311); The side block (510) comprises an upper support rod (511) arranged in an inclined manner, the bottom end of the upper support rod (511) is fixedly connected to a middle support rod (512), the surface of the middle support rod (512) is slidably sleeved with a lower branch tube (513), the surface of the middle support rod (512) is sleeved with a first spring (514), the top and bottom ends of the first spring (514) are respectively fixedly connected to the upper support rod (511) and the lower branch tube (513), and the bottom end horizontal line of the lower branch tube (513) is lower than the bottom horizontal line of the hot pressing roller (313); The distance adjusting member (520) comprises two support shells (521) respectively fixedly connected to the two sides of the first support plate (311), wherein the inner cavity of one of the support shells (521) is rotatably connected with a bidirectional screw rod (522), and both sides of the surface of the bidirectional screw rod (522) are threadedly sleeved with a screw sleeve (523), wherein the two upper support rods (511) of one group are arranged in a one-to-one correspondence with the two screw sleeves (523), wherein the top ends of the two upper support rods (511) of one group respectively penetrate into the inner cavity of the corresponding support shell (521) and are fixedly connected to the corresponding screw sleeve (523), and the inner cavity of the other support shell (521) is fixedly connected with a guide screw (523). A guide rod (524), both sides of the surface of the guide rod (524) are slidably sleeved with a sliding sleeve (525), the two upper support rods (511) of another group are arranged in a one-to-one correspondence with the two sliding sleeves (525), the top ends of the two upper support rods (511) of another group respectively penetrate into the inner cavity of the corresponding support shell (521) and are fixedly connected to the corresponding sliding sleeve (525), two connecting rods (530) are symmetrically arranged on both sides of the bottom of the first support plate (311), the two connecting rods (530) are arranged along the width direction of the operating table (210), and the two ends of the connecting rod (530) are respectively fixedly connected to the corresponding two upper support rods (511); The scraping mechanism (600) comprises a first support block (610) fixedly connected to the bottom of the first support plate (311); the bottom of the first support block (610) is integrally formed with a scraper (620) arranged in an inclined manner; the scraper (620) and the upper support rod (511) are inclined in the same direction; and the horizontal line at the bottom of the scraper (620) and the horizontal line at the bottom of the hot pressing roller (313) are in the same straight line; The fixing mechanism (700) comprises a clamping member (710) disposed on the top of the operating table (210), wherein a positioning member (720) for positioning the clamping member (710) is disposed on one of the guide rails (420); The clamp (710) comprises an L-shaped plate (711) hinged to one side of the top of the operating table (210); a clamp (712) is movably provided in the inner cavity of the L-shaped plate (711); a pillar (713) is fixedly connected to the top of the clamp (712); the top of the pillar (713) movably penetrates to the top of the L-shaped plate (711) and is fixedly connected to a stopper (714); a second spring (715) is sleeved on the surface of the pillar (713); the top and bottom ends of the second spring (715) are fixedly connected to the L-shaped plate (711) and the clamp (712), respectively; The positioning member (720) comprises a second support block (721) fixedly connected to the surface of one of the guide rails (420), the top of the second support block (721) is rotatably connected to a baffle (722), and the bottom of the baffle (722) contacts the top of the L-shaped plate (711).

5. The multifunctional composite filter material according to claim 4, characterized in that: Through grooves (3211) are provided on both sides of the surface of the bracket (321), and protrusions (3111) are integrally formed on both sides of the first support plate (311), and the protrusions (3111) and the through grooves (3211) are arranged in a one-to-one correspondence, and one side of the protrusion (3111) movably penetrates into the inner cavity of the corresponding through groove (3211), and the inner wall surface of the through groove (3211) is slidably connected to the surface of the corresponding protrusion (3111).

6. The multifunctional composite filter material according to claim 5, characterized in that: The displacement mechanism (400) comprises two gantries (410) fixedly connected to the top of the operating platform (210) and arranged along the length direction of the operating platform (210), a guide rail (420) arranged parallel to the operating platform (210) is fixedly connected between the two gantries (410), a walking mechanism (430) is provided on the surface of the guide rail (420), and the bottom of the walking mechanism (430) is fixedly connected to the top of the bracket (321).

7. The multifunctional composite filter material according to claim 6, characterized in that: The inner wall surface of the lower branch pipe (513) is provided with a slide groove (5131), and the end of the surface of the middle support rod (512) away from the upper support rod (511) is fixedly connected with a slider (5121) capable of sliding in the inner cavity of the slide groove (5131).

8. The multifunctional composite filter material according to claim 7, characterized in that: The bottom end of the lower branch pipe (513) is rotatably connected to a roller (515).

9. The multifunctional composite filter material according to claim 8, characterized in that: The length of the first support block (610) is smaller than the length of the scraper (620), and the connecting rod (530) is located on the side of the first support block (610) and above the scraper (620).

10. Use of the multifunctional composite filter material according to any one of claims 1 to 9 in the food industry.

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