A disinfection device in the production process of sanitary napkins

Abstract

The invention discloses a disinfection device in a sanitary napkin production process, and relates to the technical field of disinfection devices. The disinfection device in a sanitary napkin production process comprises: a steam generating device, which is used to generate high-temperature steam for disinfecting composite materials; a disinfection box, which comprises a downstream module and a reverse flow module, the downstream module comprises an inner box and a plurality of partitions arranged in the inner box, the chamber of the inner box is divided into a primary evaporation chamber, a secondary evaporation chamber and a disinfection chamber by the partitions, the high-temperature steam passes through the primary evaporation chamber, the secondary evaporation chamber and the disinfection chamber, and the high-temperature steam can be evenly distributed in the disinfection box through the alternating operation of the downstream fan and the reverse flow fan, thereby avoiding the problem of excessively high or low local temperature, and ensuring that all composite material layers can be fully treated with high temperature; in addition, the dynamic flow of the circulating steam enhances the penetration of the steam, and can better penetrate into the deep layer of the composite material, thereby improving the disinfection effect.

Description

Technical Field

[0001] The invention relates to the technical field of disinfection equipment, in particular to disinfection equipment in the production process of sanitary napkins. Background Art

[0002] Sanitary napkins are essential items for women during their menstrual period. Whether they are healthy and safe is directly related to women's physical and mental health. Therefore, they must be strictly disinfected during the production process. Currently, there are three types of disinfection methods on the market: ultraviolet disinfection, high-temperature sterilization, and chemical disinfection. First, ultraviolet disinfection disinfects the surface of sanitary napkins by ultraviolet irradiation, which can remove most of the microorganisms on the surface. It is relatively simple and practical; high-temperature sterilization is to put the sanitary napkin into a high-temperature sterilizer for high-temperature disinfection, which can completely kill microorganisms; chemical disinfection is to use disinfectants to treat sanitary napkins, which will remove microorganisms to a certain extent, but it is necessary to choose a suitable disinfectant, otherwise chemical substances will remain and cause harm to the human body.

[0003] In sanitary napkin production, high-temperature sterilization is mainly achieved through high-temperature steam sterilization, which can kill all microorganisms including spores.

[0004] A Chinese patent with authorization announcement number CN109091692B discloses a disinfection device in the production process of sanitary napkins, including a frame, a fixed plate and a connecting rod, a support foot is hinged at the bottom of the frame, and a conveyor belt is rotatably installed on the inner side of the frame, a heat conducting plate is installed inside the left side of the conveyor belt, and a heating wire is connected to the bottom of the heat conducting plate, the fixed plate is arranged in the middle of the inner side of the frame, and a mounting plate is installed at the bottom of the fixed plate, a rubber pad is installed on the inner side of the mounting plate, and a diaphragm is connected to the inner upper side of the mounting plate, A pressurizing chamber is arranged above the fixed plate, and the top of the pressurizing chamber is connected to a through pipe, a blocking block is arranged at the bottom of the through pipe, and a spring is inlaid and connected to the outer side of the blocking block, the connecting rod is arranged on the right side of the blocking block, and the top of the spring is connected to a flashing light, a switch is arranged in the middle of the spring, and a resistance rod is arranged on the outer side of the switch, a frame plate is arranged on the right side of the fixed plate, and an ultraviolet lamp is arranged on the inner side of the frame plate, and a heat conducting plate and a heating wire are arranged, so as to utilize the heat conducting plate to dry the sanitary napkins above the conveyor belt in the hollow structure.

[0005] During the production process of sanitary napkins, a single sanitary napkin generally includes a surface layer, a wrapping layer, an absorption layer, a bottom film and an envelope. The surface layer, the wrapping layer and the absorption layer are generally pressed into a whole composite material layer, and then the composite material layer is combined with the bottom film and the envelope and pressed into a whole sanitary napkin; before this, the composite material layer will be disinfected and sterilized, and the traditional disinfection and sterilization method is to boil the composite material layer at high temperature, but in this process, steam needs to be continuously supplied, and the heat utilization efficiency is low.

[0006] To this end, the present invention proposes a disinfection device in the production process of sanitary napkins to solve the above problems. Summary of the invention

[0007] In view of the above problems in the prior art, the present invention is proposed.

[0008] In order to solve the above technical problems, the present invention provides the following technical solutions: a disinfection device in the production process of sanitary napkins, comprising: a steam generating device, which is used to generate high-temperature steam for disinfecting composite materials;

[0009] A disinfection box, comprising a downstream module and a countercurrent module, wherein the downstream module comprises an inner box and a plurality of partitions arranged in the inner box, wherein the chamber of the inner box is divided into a primary evaporation chamber, a secondary evaporation chamber and a disinfection chamber by the partitions, wherein the high-temperature steam evaporates upward from the bottom of the composite material through the primary evaporation chamber, the secondary evaporation chamber and the disinfection chamber; wherein the countercurrent module comprises an outer box and a countercurrent pipe, wherein the outer box is connected to the primary evaporation chamber through the countercurrent pipe, and the outer box cover is arranged outside the inner box, so that the high-temperature steam evaporates downward from the upper part of the composite material through the countercurrent pipe, the outer box and the disinfection chamber;

[0010] The spoiler assembly includes a downstream fan and a countercurrent fan, wherein the downstream fan is used to directionally move the steam in the primary evaporation chamber into the secondary evaporation chamber, and the countercurrent fan is used to directionally move the steam in the secondary evaporation chamber into the primary evaporation chamber;

[0011] The seal comprises a primary seal for blocking the gas passage from the secondary evaporation chamber to the disinfection chamber and a secondary seal for blocking the gas passage from the disinfection chamber to the secondary evaporation chamber. The primary seal rotates alone or in conjunction with the secondary seal to rotate synchronously.

[0012] As a preferred solution of the disinfection device in the sanitary napkin production process of the present invention, wherein: the number of the primary seals is three groups, and a linkage assembly is provided between every two groups of the primary seals, so that the three groups of primary seals rotate synchronously and in the same direction through linkage;

[0013] A driving assembly is installed at the corner of the disinfection chamber, and the driving assembly is used to drive the primary sealing member to rotate.

[0014] As a preferred embodiment of the disinfection device in the sanitary napkin production process of the present invention, the steam generating device comprises a pressure box and a steam pipe arranged at the top of the pressure box, the pressure box is connected to the primary evaporation chamber through the steam pipe, and a safety valve is installed in the steam pipe;

[0015] The safety valve is configured to open or close the steam pipe according to the temperature in the sterilization chamber to increase the temperature in the sterilization chamber.

[0016] As a preferred solution of the disinfection equipment in the sanitary napkin production process of the present invention, wherein: the disinfection chamber is provided with hanging racks arranged in an array, and the composite material layer is hung on the surface of the hanging rack so that the composite material layer is laid flat in the disinfection chamber in a wavy shape;

[0017] The hanging frame is arranged in a multi-stage rotational manner, and is driven to penetrate the connection between the secondary evaporation chamber and the disinfection chamber, and is stored at the top of the secondary evaporation chamber by flipping and folding.

[0018] As a preferred embodiment of the disinfection device in the sanitary napkin production process of the present invention, the inner box comprises a lower box and an inner box cover inserted at the top of the lower box, the lower box is composed of a bottom plate, four side plates and a steam top plate, a primary steam port is opened on the surface of the steam top plate, and the primary sealing member penetrates the steam top plate and blocks the primary steam port;

[0019] The outer box includes a heat recovery box and an outer box cover inserted on the top of the heat recovery box, a fluid air duct is formed between the outer box cover and the inner box cover, a sealing plate for sealing the fluid air duct is provided between the outer box cover and the inner box cover, and a plurality of spherical grooves are opened on the sealing plate, and the secondary seal passes through the sealing plate and seals the spherical grooves.

[0020] As a preferred solution of the disinfection device in the sanitary napkin production process of the present invention, wherein: the primary sealing member includes a combination rod and a plurality of sealing balls, the combination rod includes a connecting rod and a clamping rod, the connecting rod includes a connecting rod 1 and a connecting rod 2 coaxial with the sealing balls, two adjacent sealing balls are integrally connected through the connecting rod 1, the connecting rod 2 is led outward from the sealing balls on both sides, and passes through the linkage assembly to form a fixed connection therewith, and a semicircular push plate is fixed to one end of the connecting rod 2 passing through the linkage assembly;

[0021] The secondary seal includes a rotating ball and a center rod extending from the outer wall of the rotating ball. A group of drive plates are fixed to the surface of the center rod close to the side of the combination rod. The center rod penetrates into the area surrounded by the semicircular push plate and drives the drive plate to press on the semicircular push plate.

[0022] As a preferred solution of the disinfection equipment in the sanitary napkin production process of the present invention, an arched groove is opened on the inner box cover, and an arched plate is pressed in the arched groove, the center rod passes through the arched plate, and the center rod rotates in the arched plate.

[0023] As a preferred solution of the disinfection equipment in the sanitary napkin production process described in the present invention, the multiple interlayers are respectively a primary steam plate and a secondary steam plate, the primary steam plate is fixed to the bottom surface of the secondary steam plate, the secondary steam plate is fixed to the bottom surface of the steam top plate, and installation grooves for installing downstream fans and countercurrent fans are opened on the surface of the secondary steam plate.

[0024] As a preferred solution of the disinfection equipment in the sanitary napkin production process described in the present invention, wherein: a pressure relief port is opened on the surface of the outer box cover, and a pressure relief assembly for sealing the pressure relief port is pressed on the outside of the outer box cover, and the pressure relief assembly includes a pressure relief plate pressed at the pressure relief port, a plurality of guide rods passing through the pressure relief plate and the outer box cover, a spring sleeved on the surface of the guide rod, and an end plate fixed to both ends of the guide rod, the end plate is pressed against the surface of the pressure relief plate by a spring, and the other end plate is close to the inner wall of the outer box cover.

[0025] As a preferred solution of the disinfection device in the sanitary napkin production process of the present invention, wherein: a clamping assembly is provided between the outer box cover and the inner box cover, the clamping assembly comprises an outer plug plate and an inner card plate that are engaged with each other, the outer plug plate is fixed to the outer side of the inner box cover, and the inner card plate is fixed to the inner side of the outer box cover;

[0026] The outer box cover is provided with a lifting structure and a frame. The lifting structure is installed on the top of the frame and clamped on both sides of the outer box cover. The outer box cover and the inner box cover are lifted and lowered by the lifting structure.

[0027] Beneficial effects of the present invention:

[0028] The present invention enables high-temperature steam to be evenly distributed in the disinfection box by alternately running the downstream fan and the countercurrent fan, thereby avoiding the problem of excessively high or low local temperature and ensuring that all composite material layers can be fully treated with high temperature; in addition, the dynamic flow of the circulating steam enhances the penetration of the steam, which can better penetrate into the deep layer of the composite material and improve the disinfection effect;

[0029] The present invention recycles steam, and redirects the underutilized high-temperature steam in the outer box and the countercurrent pipeline to the primary evaporation chamber through the countercurrent pipeline, thereby reducing energy consumption and improving energy utilization. At the same time, the circulating steam reduces the condensation loss of steam on the pipeline and the equipment wall, further saving energy. In addition, the uniform steam distribution reduces the local overheating phenomenon caused by uneven temperature inside the equipment, reduces the thermal stress of the equipment material, and prolongs the service life of the equipment. The dynamic flow of the circulating steam reduces the accumulation of condensed water inside the equipment, reducing the risk of corrosion.

[0030] The present invention can ensure that when multiple air chambers need to be opened or closed simultaneously, the seals can act synchronously through the linked rotation of the primary seal and the secondary seal, thereby avoiding gas leakage or mixing caused by the lack of synchronization between the primary seal and the secondary seal, thereby ensuring the sealing and reliability of the system; the primary seal rotates alone to cooperate with the spoiler component to change the direction of the steam to adapt to different operating requirements, thereby improving the flexibility and controllability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0032] Figure 1 This is a schematic diagram of the overall structure of a disinfection device in the production process of sanitary napkins.

[0033] Figure 2 It is a schematic diagram of the internal structure of the disinfection equipment in the present invention.

[0034] Figure 3 For the present invention Figure 2 A-section structure enlarged view.

[0035] Figure 4 It is a schematic diagram of the overall structure of the sterilization and disinfection structure in the present invention.

[0036] Figure 5 For the present invention Figure 4 Enlarged view of the structure of part B.

[0037] Figure 6 It is an axonometric diagram of the internal structure of the disinfection device of the present invention.

[0038] Figure 7 For the present invention Figure 6 Enlarged view of the C structure.

[0039] Figure 8 For the present invention Figure 6 Enlarged view of the D structure.

[0040] Fig. 9 For the present invention Figure 6 Enlarged view of the E part structure.

[0041] Fig.10 This is a structural detail diagram of the secondary seal of the present invention.

[0042] Figure numerals: 100, frame; 200, lifting structure; 300, sterilization and disinfection structure; 310, disinfection box; 311, lower box; 3111, bottom plate; 3112, four side plates; 3113, steam top plate; 3114, primary steam port; 3115, inner cover slot; 3116, horizontal plate; 3117, adapter slot; 312, inner box cover; 3121, secondary steam port; 3122, arched slot; 3123, arched plate; 313, primary steam port Steam plate; 3131, secondary steam return port; 314, secondary steam plate; 3141, mounting groove; 320, steam generating equipment; 321, pressure box; 322, steam pipe; 323, safety valve; 330, spoiler assembly; 331, downstream fan; 332, reverse fan; 340, seal; 341, primary seal; 3411, sealing ball; 3412, connecting rod one; 3413, connecting rod two; 3414, semicircular push plate; 342, Secondary seal; 3421, rotating ball; 3422, center rod; 3423, drive plate; 343, linkage assembly; 3431, pulley; 3432, belt; 344, drive assembly; 3441, motor; 3442, turbine; 3443, worm; 350, clamping assembly; 351, outer plug-in plate; 352, inner clamping plate; 360, outer box; 361, hot gas recovery box; 3611, outer cover slot; 3612, primary steam recovery Flow port; 362, outer box cover; 3621, pressure relief port; 363, fluid air duct; 364, blocking plate; 3641, spherical groove; 370, counterflow duct; 380, pressure relief assembly; 381, pressure relief plate; 382, ​​guide rod; 383, spring; 384, end plate; 390, suspension bracket; 391, special-shaped base; 392, ball head; 393, suspension rod; 394, T-type abutment plate; 395, lifting ring; 396, rope; 397, eyebolt. DETAILED DESCRIPTION

[0043] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0044] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0045] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0046] Example 1

[0047] Reference Figure 1~Figure 5 As shown, the first embodiment of the present invention provides a disinfection device for a sanitary napkin production process, which includes a frame 100, a lifting structure 200 and a sterilization structure 300. The lifting structure 200 is installed on the top of the frame 100, and the sterilization structure 300 is installed inside the frame 100.

[0048] The sterilization and disinfection structure 300 includes a sterilization box 310 , a steam generating device 320 , a spoiler assembly 330 and a sealing member 340 .

[0049] The disinfection box 310 includes a downstream module and a upstream module; the downstream module includes an inner box and multiple compartments arranged in the inner box. The inner box includes a lower box 311 and an inner box cover 312 inserted at the top of the lower box 311; the lower box 311 is composed of a bottom plate 3111, four side plates 3112 and a steam top plate 3113, the surface of the steam top plate 3113 is provided with a primary steam port 3114, the surface of the lower box 311 is provided with an inner cover slot 3115 for inserting the inner box cover 312, and the top of the inner box cover 312 is provided with a secondary steam port 3121.

[0050] Multiple partitions divide the chamber of the inner box into a primary evaporation chamber, a secondary evaporation chamber and a disinfection chamber; multiple partitions are configured as a primary steam plate 313 and a secondary steam plate 314, the primary steam plate 313 is fixed to the bottom surface of the secondary steam plate 314, the secondary steam plate 314 is fixed to the bottom surface of the steam top plate 3113, the primary steam plate 313 and the secondary steam plate 314 form a primary evaporation chamber, the secondary steam plate 314 and the steam top plate 3113 form a secondary evaporation chamber, and the steam top plate 3113 and the inner box cover 312 form a disinfection chamber.

[0051] Specifically, the steam generating device 320 generates high-temperature steam. The steam generating device 320 includes a steam generator, a pressure box 321, and a steam pipe 322 disposed at the top of the pressure box 321. The two ends of the steam pipe 322 are respectively fixed to the pressure box 321 and the surface of the primary steam plate 313. The inner cavity of the pressure box 321 is connected to the primary evaporation chamber through the steam pipe 322, and a safety valve 323 is installed in the steam pipe 322.

[0052] Specifically, the spoiler assembly 330 includes a downstream fan 331 and a countercurrent fan 332. An installation groove 3141 for installing the downstream fan 331 and the countercurrent fan 332 is opened on the bottom surface of the secondary steam plate 314. The downstream fan 331 is used to directionally move the steam in the primary evaporation chamber to the secondary evaporation chamber, and the countercurrent fan 332 is used to directionally move the steam in the secondary evaporation chamber to the primary evaporation chamber.

[0053] The disinfection box 310 includes a downstream module and a upstream module; the upstream module includes an outer box 360 and a upstream pipe 370, and the outer box 360 is connected to the primary evaporation chamber through the upstream pipe 370; specifically, the outer box 360 includes a heat recovery box 361 and an outer box cover 362 inserted on the top of the heat recovery box 361, and a pressure relief port 3621 is provided on the surface of the outer box cover 362. The heat recovery box 361 is fixed on the four side panels 3112 of the lower box 311, and an outer cover slot 3611 for inserting the outer box cover 362 is provided on the surface of the heat recovery box 361, and a primary steam reflux port 3612 is provided on the top of the heat recovery box 361.

[0054] A fluid duct 363 is formed between the outer box cover 362 and the inner box cover 312. The high-temperature steam in the fluid duct 363 enters the heat recovery box 361 through the primary steam return port 3612. One end of the countercurrent pipe 370 passes through the four side panels 3112 and is fixed on the heat recovery box 361. The other end of the countercurrent pipe 370 passes through the primary steam plate 313 to form a secondary steam return port 3131. The high-temperature steam in the heat recovery box 361 flows back to the primary evaporation chamber through the secondary steam return port 3131.

[0055] Downstream process:

[0056] The steam generator heats the water flow in the pressure box 321 and generates high-temperature steam. The high-temperature steam enters the first-level evaporation chamber. Part of the high-temperature steam enters the fluid air duct 363 through the second-level steam return port 3131, the hot gas recovery box 361, and the first-level steam return port 3612, and then discharges through the pressure relief port 3621; the other part of the high-temperature steam enters the fluid air duct 363 through the first-level steam port 3114, the disinfection chamber and the second-level steam port 3121, and then discharges through the pressure relief port 3621.

[0057] When the temperature at various places in the sterilization and disinfection structure 300 reaches the temperature required for sterilization and disinfection of the composite material layer, the downstream fan 331 is turned on, and the high-temperature steam is introduced into the primary evaporation chamber through the countercurrent pipe 370, and is directed to be transported to the secondary evaporation chamber, and then flows to form the secondary evaporation chamber, the disinfection chamber, the fluid duct 363, the hot air recovery box 361, the primary evaporation chamber and the fluid circuit of the primary evaporation chamber; the high-temperature steam evaporates upward from the bottom of the composite material to perform high-temperature disinfection on the composite material layer placed in the disinfection chamber. When the temperature in the sterilization and disinfection structure 300 drops, the steam generator presses the high-temperature steam in the pressure box 321 into the primary evaporation chamber through the steam pipe 322 at high pressure, and the excess air is discharged through the pressure relief port 3621 to ensure constant temperature.

[0058] Countercurrent process:

[0059] When the temperature at various places in the sterilization and disinfection structure 300 reaches the temperature required for sterilization and disinfection of the composite material layer, the countercurrent fan 332 is turned on, and the high-temperature steam is directed from the secondary evaporation chamber into the primary evaporation chamber, and then flows to form the primary evaporation chamber, the heat recovery box 361, the fluid duct 363, the disinfection chamber, and the fluid circuit of the secondary evaporation chamber and the primary evaporation chamber; the high-temperature steam overflows downward from the top of the composite material to perform high-temperature disinfection on the composite material layer placed in the disinfection chamber. When the temperature in the sterilization and disinfection structure 300 drops, the steam generator presses the high-temperature steam in the pressure box 321 into the primary evaporation chamber through the steam pipe 322 at high pressure, and the excess air is discharged through the pressure relief port 3621 to ensure constant temperature.

[0060] Through the alternating operation of the downstream fan 331 and the countercurrent fan 332, the high-temperature steam can be evenly distributed in the disinfection box 310, avoiding the problem of local excessive temperature or excessive low temperature, and ensuring that all composite material layers can be fully treated with high temperature; in addition, the dynamic flow of the circulating steam enhances the penetration of the steam, which can better penetrate into the deep layer of the composite material and improve the disinfection effect.

[0061] Steam is recycled, and underutilized high-temperature steam is recovered through the hot gas recovery box 361, and is redirected to the primary evaporation chamber through the countercurrent pipe 370, which reduces energy consumption and improves energy utilization. At the same time, the recycled steam reduces the condensation loss of steam on the pipes and equipment walls, further saving energy. In addition, the uniform steam distribution reduces local overheating caused by uneven temperature inside the equipment, reduces the thermal stress of equipment materials, and extends the service life of the equipment. At the same time, the dynamic flow of the recycled steam reduces the accumulation of condensed water inside the equipment, reducing the risk of corrosion.

[0062] Example 2

[0063] Reference Figure 6~Figure 10 The second embodiment of the present invention is shown in FIG. 1 , which is based on the previous embodiment, except that a fluid duct 363 is formed between the outer box cover 362 and the inner box cover 312, and a blocking plate 364 for blocking the fluid duct 363 is provided between the outer box cover 362 and the inner box cover 312, and a plurality of spherical grooves 3641 are provided on the blocking plate 364.

[0064] The inner box cover 312 is provided with an arched groove 3122 , and an arched plate 3123 is pressed in the arched groove 3122 . The arched plate 3123 and the inner box cover 312 are both inserted into the inner cover slot 3115 , and the inner box cover 312 and the inner cover slot 3115 are used to stabilize the arched plate 3123 .

[0065] The seal 340 includes a primary seal 341 for blocking the gas passage from the secondary evaporation chamber to the disinfection chamber and a secondary seal 342 for blocking the gas passage from the disinfection chamber to the secondary evaporation chamber. The primary seal 341 rotates alone or in conjunction with the secondary seal 342 to rotate synchronously.

[0066] There are three groups of primary seals 341 , and a linkage assembly 343 is provided between every two groups of primary seals 341 , so that the three groups of primary seals 341 can rotate synchronously and in the same direction through the linkage assembly 343 .

[0067] The primary seal 341 includes a combination rod and multiple sealing balls 3411. The combination rod includes a connecting rod and a clamping rod. The connecting rod includes a connecting rod 1 3412 and a connecting rod 2 3413 which are coaxial with the sealing balls 3411. Two adjacent sealing balls 3411 are integrally connected via the connecting rod 1 3412. The connecting rod 2 3413 is led outward from the sealing balls 3411 on both sides and passes through the linkage assembly 343 to form a fixed connection therewith.

[0068] The sealing ball 3411 is engaged in the primary steam port 3114 to seal the primary steam port 3114 .

[0069] There are two groups of linkage components 343, each group of linkage components 343 includes two pulleys 3431 and multiple belts 3432 that drive the two pulleys 3431 to rotate. One group of linkage components 343 links the two groups of primary seals 341 in the middle and on one side, and the other group of linkage components 343 is located at the other end of the primary seal 341, and is used to link the two groups of primary seals 341 in the middle and on the other side.

[0070] A driving assembly 344 is installed at the corner of the disinfection chamber. The driving assembly 344 is used to drive the primary seal 341 to rotate. The driving assembly 344 includes a motor 3441 installed on the steam top plate 3113, a turbine 3442 fixed on the output shaft of the motor 3441, and a worm 3443. The motor 3441 drives the worm 3443 to rotate through the turbine 3442. The worm 3443 is fixed to the connecting rod 3413 to drive the connecting rod 3413 to rotate.

[0071] Specifically, when the motor 3441 is started, the turbine 3442 on the output shaft of the motor 3441 starts to rotate, and the worm 3443 is driven to rotate through the turbine 3442. The worm 3443 is fixedly connected to the second connecting rod 3413, so the rotation of the worm 3443 drives the rotation of the second connecting rod 3413. Since the second connecting rod 3413 is fixedly connected to the primary seal 341, the primary seal 341 rotates accordingly.

[0072] When the primary seal 341 on one side is driven to rotate by the driving assembly 344, the rotation of the primary seal 341 on one side can be transmitted to the primary seal 341 in the middle through the linkage assembly 343, and the primary seal 341 in the middle rotates. The rotation of the primary seal 341 in the middle can be transmitted to the primary seal 341 on the other side through the linkage assembly 343, and the three groups of primary seals 341 rotate synchronously.

[0073] The second connecting rod 3413 passes through one end of the linkage assembly 343 and is fixed with a semicircular push plate 3414 .

[0074] The secondary seal 342 includes a rotating ball 3421 and a center rod 3422 extended from the outer wall of the rotating ball 3421. A group of driving plates 3423 are fixed to the surface of the center rod 3422 close to the side of the combination rod. The center rod 3422 passes into the area surrounded by the semicircular push plate 3414, and then the center rod 3422 is rotated to drive the driving plate 3423 on the surface of the center rod 3422 to press on the semicircular push plate 3414. During the rotation process, the semicircular push plate 3414 rotates in the opposite direction to give a certain thrust to the driving plate 3423, prompting the semicircular push plate 3414 to transfer the thrust to the secondary seal 342, thereby pushing the secondary seal 342 to rotate synchronously.

[0075] The central rod 3422 penetrates the blocking plate 364, the rotating ball 3421 blocks the spherical groove 3641, and the central rod 3422 simultaneously penetrates the arch plate 3123, and the central rod 3422 rotates in the arch plate 3123. When the position of the arch plate 3123 is determined, the positions of the blocking plate 364 and the secondary sealing member 342 are also determined.

[0076] Exemplarily, first, the center rod 3422 and the semicircular push plate 3414 are not in contact with each other, and the semicircular push plate 3414 only pushes the driving plate 3423 to rotate the secondary seal 342 to achieve the purpose of sealing the sealing plate 364.

[0077] like Figure 7 and Fig.10 As shown, the primary seal 341 and the secondary seal 342 are concentric and coaxial, and the sealing ball 3411 in the primary seal 341 and the rotating ball 3421 in the secondary seal 342 are both provided with through holes, and the axis of the through holes is vertically upward, and in the initial state, the axis of the through holes on the surfaces of the sealing ball 3411 in the primary seal 341 and the rotating ball 3421 in the secondary seal 342 are vertically upward, and the semicircular push plate 3414 is tightly attached to the drive plate 3423, and when the drive assembly 344 drives the primary seal 341 to rotate forward, the primary seal 341 and the secondary seal 342 rotate synchronously.

[0078] When it is necessary to open or close the primary seal 341 and the secondary seal 342 at the same time, the driving component 344 first drives the primary seal 341 to rotate forward to adjust the states of the primary seal 341 and the secondary seal 342, so that the primary seal 341 and the secondary seal 342 are in the initial state, and the three groups of primary seals 341 are driven by the driving component 344 to continue to rotate forward, and at the same time, the semicircular push plate 3414 is used to push the secondary seal 342 to rotate, so that the primary seal 341 and the secondary seal 342 are in a state of being opened or closed at the same time.

[0079] When it is necessary to adjust the primary seal 341 and the secondary seal 342 to different states, the secondary seal 342 is first pushed to the required state by the primary seal 341, and then the primary seal 341 is driven to reverse by the driving assembly 344, and the primary seal 341 only rotates by itself.

[0080] The required state refers to when the primary seal 341 and the secondary seal 342 are in different states, for example, the primary seal 341 is in a closed state and the secondary seal 342 is in an open state.

[0081] It should be noted that if the primary seal 341 and the secondary seal 342 rotate from a closed state to an open state, the required rotation angle is 90 degrees, and the primary seal 341 can rotate more than 90 degrees without contacting the drive plate 3423.

[0082] In the second embodiment of the present invention, the primary seal 341 and the secondary seal 342 are designed to be both linked and independently rotated. The primary seal 341 and the secondary seal 342 are linked to rotate to ensure that multiple air chambers are opened or closed at the same time when needed. When the primary seal 341 and the secondary seal 342 are both opened, the gas can be circulated in the downstream and upstream directions; when the primary seal 341 and the secondary seal 342 are both closed, steam exists in the primary evaporation chamber, the secondary evaporation chamber and the hot gas recovery box 361, the steam is in a static state, and the steam top plate 3113 is in a high temperature state, locking part of the remaining steam, and using the high-temperature steam top plate 3113 to preheat or dry the composite material layer;

[0083] When the primary seal 341 and the secondary seal 342 are not in interlocking rotation, the primary seal 341 rotates alone. When only the primary seal 341 is open, the steam is in a static state, or the steam enters the primary evaporation chamber, the secondary evaporation chamber, the disinfection chamber, the fluid air duct 363, and then leaks out from the pressure relief port 3621. The composite material layer is in a continuous high-temperature state, achieving rapid disinfection and high-temperature drying of the composite material layer. When only the secondary seal 342 is open, it presses against the pressure relief port 3621 on one side, so that the high-temperature steam flows out through the hot air recovery box 361 and the fluid air duct 363 to the other pressure relief port 3621, which can be used to preheat the box in advance.

[0084] The coordinated rotation of the primary seal 341 and the secondary seal 342 can ensure that when multiple air chambers need to be opened or closed at the same time, the seal 340 can move synchronously to avoid gas leakage or mixing due to asynchrony, thereby ensuring the sealing and reliability of the system; the primary seal 341 rotates alone to cooperate with the spoiler assembly 330 to change the direction of steam to adapt to different operating requirements, thereby improving the flexibility and controllability of the system. At the same time, the primary seal 341 can be controlled alone to quickly isolate a certain air chamber when a problem is detected in the air chamber, thereby preventing the problem from spreading to other air chambers and improving the fault isolation capability of the system.

[0085] The safety valve 323 is configured to open or close the steam pipe 322 according to the temperature in the disinfection chamber to increase the temperature in the disinfection chamber. It uses sensors arranged at different positions in the disinfection chamber to detect the temperature in the disinfection chamber to determine whether the detected lowest temperature of the disinfection chamber is greater than the sterilization temperature of the composite material layer. When the primary seal 341 is in the open state, the steam pipe 322 is opened to increase the temperature in the disinfection chamber.

[0086] The operation of the steam generator is synchronized with the steam pipe 322 to prevent the pressure box 321 from bursting due to excessive pressure in the pressure box 321 .

[0087] Example 3

[0088] Reference Figure 1 , Figure 2 and Figure 8 , which is a third embodiment of the present invention. This embodiment is based on the previous embodiment, but differs in that a lifting structure 200 and a frame 100 are provided outside the outer box cover 362. The lifting structure 200 is installed on the top of the frame 100 and clamped on both sides of the outer box cover 362. The outer box cover 362 and the inner box cover 312 are lifted and lowered by the lifting structure 200.

[0089] A snap-fit ​​assembly 350 is provided between the outer box cover 362 and the inner box cover 312. The snap-fit ​​assembly 350 includes an outer plug plate 351 and an inner plug plate 352 that are snap-fitted to each other. The outer plug plate 351 is fixed to the outer side of the inner box cover 312, and the inner plug plate 352 is fixed to the inner side of the outer box cover 362. Considering the length of the composite material layer, the outer box cover 362 and the inner box cover 312 are relatively large in size, and it is difficult to achieve an artificial covering method.

[0090] Reference Figure 8 As shown, a pressure relief port 3621 is provided on the surface of the outer box cover 362, and a pressure relief assembly 380 for sealing the pressure relief port 3621 is pressed on the outer side of the outer box cover 362. The pressure relief assembly 380 includes a pressure relief plate 381 pressed at the pressure relief port 3621, a plurality of guide rods 382 passing through the pressure relief plate 381 and the outer box cover 362, a spring 383 sleeved on the surface of the guide rod 382, ​​and an end plate 384 fixed to both ends of the guide rod 382. The end plate 384 is pressed against the surface of the pressure relief plate 381 by the spring 383, and the other end plate 384 is close to the inner wall of the outer box cover 362.

[0091] There are two groups of pressure relief ports 3621 , which are located on both sides of the outer box cover 362 , and the positions of the pressure relief ports 3621 are higher than the position of the blocking plate 364 .

[0092] When the pressure in the fluid air duct 363 is greater than the external air pressure, and the air pressure is sufficient to resist the force of the spring 383 to push the pressure relief plate 381, the pressure relief plate 381 and the surface of the outer box cover 362 separate to form a slit, and the gas dissipates outward from the slit.

[0093] Specifically, when the pressure in the fluid duct 363 is large enough, the air pressure difference acts on the surface of the pressure relief plate 381 to act on the pressure relief plate 381, and the air pressure inside the fluid duct 363 acts on the surface of the pressure relief plate 381, so that the pressure relief plate 381 is subjected to an outward thrust, and the thrust causes the pressure relief plate 381 to move away from the outer box cover 362, and the pressure relief plate 381 squeezes the spring 383, and the spring 383 is in a compressed state.

[0094] When the pressure in the fluid air duct 363 gradually decreases and is insufficient to resist the force of the spring 383 , the pressure relief plate 381 is pressed against the surface of the outer box cover 362 by the spring 383 , and the pressure relief port 3621 is sealed again.

[0095] Example 4

[0096] Reference Figure 6 , Figure 7 as well as Fig. 9FIG. 4 is a fourth embodiment of the present invention, which is based on the previous embodiment, except that a plurality of hanging racks 390 arranged in an array are provided in the disinfection chamber, and the composite material layer is hung on the surface of the hanging racks 390, so that the composite material layer is laid flat in the disinfection chamber in a wavy shape;

[0097] The hanging frame 390 is arranged in a multi-stage rotational manner, and is driven to pass through the connection between the secondary evaporation chamber and the disinfection chamber, and is stored at the top of the secondary evaporation chamber by flipping and folding.

[0098] Specifically, two groups of horizontal plates 3116 extend from both sides of the steam top plate 3113 , and matching grooves 3117 for engaging the hanging bracket 390 are opened on the surface of the horizontal plates 3116 .

[0099] The suspension frame 390 includes a special-shaped base 391, a ball head 392, a suspension rod 393 and a rope body. The special-shaped base 391 is used to engage the ball head 392 and allow the ball head 392 to rotate inside. The suspension rod 393 is fixed in the ball head 392, and the axis of the suspension rod 393 passes through the center of the ball head 392. The suspension rod 393 can be flipped left and right in the special-shaped base 391 along with the ball head 392.

[0100] A group of T-shaped abutment plates 394 are also fixed to the center of the bottom end of the special-shaped base 391 . The T-shaped abutment plates 394 penetrate the steam top plate 3113 and are rotatably connected to the steam top plate 3113 .

[0101] The rope body includes a rope 396 and a ring 395, the ring 395 is fixed at both ends of the rope 396, and a notch is provided on the ring 395. An eye bolt 397 is also fixed on the hanging rod 393, and the notch facilitates the eye bolt 397 to pass through. The eye bolt 397 is passed through the notch of the ring 395 so that the ring 395 is hung on the eye bolt 397, and the ring 395 at the other end of the rope 396 is installed on another set of hanging rods 393 in the same way.

[0102] By hoisting, more composite material layers can be loaded inside the sterilization and disinfection equipment, and the drying can be uniform and efficient. If the composite material layer is directly laid on the steam top plate 3113, and other multi-layer composite material layers are stacked in sequence, it is difficult to ensure the comprehensive drying of the composite material, the hot air is difficult to dissipate, the drying efficiency is poor, and the bottom layer of the composite material may be over-dried.

[0103] If the clamping and stretching method is adopted, the composite material layer is prone to deformation and tearing, and it is difficult to ensure the quality of the composite material layer. The hanging method can ensure the drying efficiency and is easy to lay and store.

[0104] In addition, the suspension frame 390 is designed to be multi-stage rotatable, so that the suspension frame 390 can be stored.

[0105] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A disinfection device in the production process of sanitary napkins, characterized in that: include: a steam generating device (320) for generating steam for sterilizing the composite material; A disinfection box (310), comprising a downstream module and a countercurrent module, wherein the downstream module comprises an inner box and a plurality of partitions arranged in the inner box, wherein the chamber of the inner box is divided into a primary evaporation chamber, a secondary evaporation chamber and a disinfection chamber by the partitions, wherein the steam evaporates from the bottom of the composite material upward through the primary evaporation chamber, the secondary evaporation chamber and the disinfection chamber; wherein the countercurrent module comprises an outer box (360) and a countercurrent pipe (370), wherein the outer box (360) is connected to the primary evaporation chamber through the countercurrent pipe (370), and the outer box (360) is covered on the outside of the inner box, so that the steam evaporates from the top of the composite material downward through the countercurrent pipe (370), the outer box (360) and the disinfection chamber; A spoiler assembly (330), comprising a downstream fan (331) and a countercurrent fan (332), wherein the downstream fan (331) is used to directionally move the steam in the primary evaporation chamber into the secondary evaporation chamber, and the countercurrent fan (332) is used to directionally move the steam in the secondary evaporation chamber into the primary evaporation chamber; A sealing member (340), the sealing member (340) comprising a primary sealing member (341) for blocking the gas passage from the secondary evaporation chamber to the disinfection chamber and a secondary sealing member (342) for blocking the gas passage from the disinfection chamber to the secondary evaporation chamber, the primary sealing member (341) rotating alone or in conjunction with the secondary sealing member (342) rotating synchronously; The number of the primary sealing elements (341) is three groups, and a linkage assembly (343) is provided between every two groups of the primary sealing elements (341), so that the three groups of primary sealing elements (341) can rotate synchronously and in the same direction through the linkage assembly (343); The primary sealing member (341) comprises a combination rod and a plurality of sealing balls (3411), wherein the combination rod comprises a connecting rod and a clamping rod, wherein the connecting rod comprises a connecting rod 1 (3412) and a connecting rod 2 (3413) coaxial with the sealing balls (3411), wherein two adjacent sealing balls (3411) are integrally connected via the connecting rod 1 (3412), wherein the connecting rod 2 (3413) is led outward from the sealing balls (3411) on both sides and passes through the linkage assembly (343) to form a fixed connection therewith, and a semicircular push plate (3414) is fixed to one end of the connecting rod 2 (3413) passing through the linkage assembly (343); The secondary seal (342) includes a rotating ball (3421) and a center rod (3422) extending from the outer wall of the rotating ball (3421). A group of drive plates (3423) are fixed to the surface of the center rod (3422) close to the combination rod. The center rod (3422) penetrates into the area surrounded by the semicircular push plate (3414). The center rod (3422) is rotated to drive the drive plate (3423) to press on the semicircular push plate (3414).

2. The disinfection device in the sanitary napkin production process according to claim 1, characterized in that: A driving assembly (344) is installed at a corner of the disinfection chamber, and the driving assembly (344) is used to drive the primary sealing member (341) to rotate.

3. The disinfection device in the sanitary napkin production process as claimed in claim 2, characterized in that: The steam generating device (320) comprises a pressure box (321) and a steam pipe (322) arranged at the top of the pressure box (321); the pressure box (321) is connected to the primary evaporation chamber through the steam pipe (322), and a safety valve (323) is installed in the steam pipe (322); The safety valve (323) is configured to open or close the steam pipe (322) according to the temperature inside the sterilization chamber, so as to increase the temperature inside the sterilization chamber.

4. The disinfection device in the sanitary napkin production process as claimed in claim 3, characterized in that: The disinfection chamber is provided with hanging racks (390) arranged in an array, and the composite material layer is hung on the surface of the hanging racks (390) so that the composite material layer is laid flat in the disinfection chamber in a wave shape; The hanging frame (390) is arranged in a multi-stage rotational manner, and is driven to penetrate the connection between the secondary evaporation chamber and the disinfection chamber, and is stored at the top of the secondary evaporation chamber by flipping and folding.

5. The disinfection device in the sanitary napkin production process as claimed in claim 4, characterized in that: The inner box comprises a lower box (311) and an inner box cover (312) inserted at the top of the lower box (311); the lower box (311) comprises a bottom plate (3111), four side plates (3112) and a steam top plate (3113); a primary steam port (3114) is provided on the surface of the steam top plate (3113); the primary sealing member (341) penetrates the steam top plate (3113) and blocks the primary steam port (3114); The outer box (360) comprises a hot gas recovery box (361) and an outer box cover (362) inserted on the top of the hot gas recovery box (361), a fluid air duct (363) is formed between the outer box cover (362) and the inner box cover (312), a sealing plate (364) for sealing the fluid air duct (363) is provided between the outer box cover (362) and the inner box cover (312), and a plurality of spherical grooves (3641) are provided on the sealing plate (364), and the secondary sealing member (342) passes through the sealing plate (364) and seals the spherical grooves (3641).

6. The disinfection device in the sanitary napkin production process as claimed in claim 5, characterized in that: The inner box cover (312) is provided with an arched groove (3122), and an arched plate (3123) is pressed in the arched groove (3122). The center rod (3422) penetrates the arched plate (3123), and the center rod (3422) rotates in the arched plate (3123).

7. The disinfection device in the sanitary napkin production process according to claim 6, characterized in that: The plurality of interlayers are respectively a primary steam plate (313) and a secondary steam plate (314); the primary steam plate (313) is fixed to the bottom surface of the secondary steam plate (314); the secondary steam plate (314) is fixed to the bottom surface of the steam top plate (3113); and a mounting groove (3141) for mounting a downstream fan (331) and a reverse flow fan (332) is provided on the surface of the secondary steam plate (314).

8. The disinfection device during the production of sanitary napkins as claimed in claim 7, characterized in that: A pressure relief port (3621) is provided on the surface of the outer box cover (362), and a pressure relief assembly (380) for sealing the pressure relief port (3621) is pressed on the outer side of the outer box cover (362). The pressure relief assembly (380) comprises a pressure relief plate (381) pressed on the pressure relief port (3621), a plurality of guide rods (382) penetrating the pressure relief plate (381) and the outer box cover (362), a spring (383) sleeved on the surface of the guide rod (382), and an end plate (384) fixed on both ends of the guide rod (382). The end plate (384) is pressed on the surface of the pressure relief plate (381) by the spring (383), and the other end plate (384) is in close contact with the inner wall of the outer box cover (362).

9. The disinfection device in the sanitary napkin production process according to claim 8, characterized in that: A snap-fit ​​assembly (350) is provided between the outer box cover (362) and the inner box cover (312), and the snap-fit ​​assembly (350) comprises an outer plug plate (351) and an inner plug plate (352) that are snap-fitted to each other, the outer plug plate (351) being fixed to the outer side of the inner box cover (312), and the inner plug plate (352) being fixed to the inner side of the outer box cover (362); The outer box cover (362) is provided with a lifting structure (200) and a frame (100). The lifting structure (200) is installed on the top of the frame (100) and clamped on both sides of the outer box cover (362). The outer box cover (362) and the inner box cover (312) are lifted and lowered by the lifting structure (200).

Images