CN211244720U - Non-woven fabrics sprays equipment and non-woven fabrics system of processing - Google Patents

Abstract

The utility model provides a non-woven fabrics sprays equipment and non-woven fabrics system of processing. Non-woven fabrics spraying equipment includes: the device comprises a support, a rolling assembly and a spraying assembly; the rolling assembly comprises a power roller, a first auxiliary roller and a second auxiliary roller which are arranged on the bracket, wherein the first auxiliary roller is positioned above the power roller, and the second auxiliary roller is positioned below the power roller; a conveying area for clamping and conveying non-woven fabrics is formed between the power roller and the first auxiliary roller, and a temporary solution storage area is formed between the power roller and the second auxiliary roller; the spraying assembly comprises a liquid storage container and a plurality of nozzles, the liquid storage container is used for storing solution of the efficacy raw materials, and the nozzles are used for spraying the solution in the liquid storage container to the surface of the non-woven fabric wound on the power roller. The solution is sprayed on the non-woven fabric through the non-woven fabric spraying equipment so as to reduce the using amount of the solution, thereby reducing the production cost.

Description

Non-woven fabrics sprays equipment and non-woven fabrics system of processing

Technical Field

The utility model relates to a microwave technical field especially relates to a non-woven fabrics sprays equipment and non-woven fabrics processing system.

Background

Non-woven fabrics are widely used in people's daily life. Most of the facial masks used in the medical beauty industry adopt non-woven fabrics as carriers to adsorb solutions of functional raw materials. For example, chinese patent application No. 201710701178.2 discloses a method for preparing a non-woven fabric mask, which comprises uniformly coating a solution of functional materials on a non-woven fabric, sterilizing the non-woven fabric by radiation, and cutting and packaging the non-woven fabric by a slitting machine. The prior art at least has the following technical problems: in the coating process of the nonwoven fabric, in order to ensure that the nonwoven fabric is completely impregnated with the solution, a large amount of the solution is generally applied to the nonwoven fabric, which results in high production cost. How to design a technique with low production cost is the utility model discloses the technical problem that will solve.

SUMMERY OF THE UTILITY MODEL

The utility model provides a non-woven fabrics sprays equipment and non-woven fabrics processing system sprays the use amount of solution in order to reduce solution on to the non-woven fabrics through non-woven fabrics spraying equipment to reduction in production cost.

The utility model provides a non-woven fabrics spraying equipment, include: the device comprises a support, a rolling assembly and a spraying assembly; the rolling assembly comprises a power roller, a first auxiliary roller and a second auxiliary roller which are arranged on the bracket, wherein the first auxiliary roller is positioned above the power roller, and the second auxiliary roller is positioned below the power roller; a conveying area for clamping and conveying non-woven fabrics is formed between the power roller and the first auxiliary roller, and a temporary solution storage area is formed between the power roller and the second auxiliary roller; the spraying assembly comprises a liquid storage container and a plurality of nozzles, the liquid storage container is used for storing solution of the efficacy raw materials, and the nozzles are used for spraying the solution in the liquid storage container to the surface of the non-woven fabric wound on the power roller.

Further, the second auxiliary roller is positioned below the power roller and is arranged to be biased to a side close to the nozzle.

Furthermore, the spraying assembly further comprises a protective cover, the protective cover is arranged on the support, the nozzle is located in the protective cover, a discharge hole facing the opening in the direction of the power roller is formed in the lower portion of the protective cover, and the solution sprayed out of the nozzle is sprayed to the surface of the non-woven fabric wound on the power roller through the discharge hole.

Further, the guard shield includes preceding baffle, backplate, roof and two curb plates, the lower part of preceding baffle is provided with the first kink of buckling towards power roller direction, the lower part of backplate is provided with the second kink of buckling towards power roller direction, be provided with between the lateral part of preceding baffle and the lateral part of backplate the curb plate and whole form the shell-type structure, the roof sets up the top of shell-type structure.

Furthermore, the spraying component is also provided with a receiving disc, the receiving disc is installed on the support and located at the bottom of the rolling component, and a liquid outlet is formed in the bottom of the receiving disc and connected with the liquid storage container.

Further, the rolling assembly includes a first height adjusting assembly for adjusting a height of the first auxiliary roller, and a second height adjusting assembly for adjusting a height of the second auxiliary roller.

Furthermore, the first height adjusting assembly and the second height adjusting assembly respectively comprise two symmetrically-arranged height adjusting modules, each height adjusting module comprises a bearing seat, a screw rod and a supporting seat, the supporting seat is provided with a threaded hole which is vertically arranged, the screw rods are in threaded connection in the threaded holes, the bearing seats are vertically slidably mounted on the support, and the screw rods are connected with the bearing seats and can rotate relative to the bearing seats.

Further, the rolling assembly further comprises a driven roller and an endless belt wound between the driven roller and the power roller.

The utility model also provides a non-woven fabric processing system, which comprises the non-woven fabric spraying equipment, wherein the non-woven fabric processing equipment also comprises a microwave sterilization device; the microwave sterilization device comprises a microwave heating tunnel and a conveying belt, wherein the conveying belt penetrates through the microwave heating tunnel, the conveying belt is used for conveying non-woven fabrics output by the non-woven fabric spraying equipment, and a microwave generator is arranged in the microwave heating tunnel.

The utility model provides a non-woven fabrics sprays equipment and non-woven fabrics processing system, through forming between power roller and the second auxiliary roller and be used for solution temporary storage area, realize spraying coating solution in spraying subassembly spun solution on the one hand to the non-woven fabrics, on the other hand unnecessary solution assembles in solution temporary storage area, make the non-woven fabrics through solution temporary storage area reach the effect of soaking solution, thereby can ensure the coating solution that the non-woven fabrics can be even, when reducing the solution use amount, ensure to spray the effect that coating solution reaches the even coating solution of non-woven fabrics.

Drawings

FIG. 1 is a schematic structural view of a non-woven fabric processing system of the present invention;

FIG. 2 is a schematic structural view of a spraying device in the non-woven fabric processing system of the present invention;

FIG. 3 is a cross-sectional view of the spraying equipment in the non-woven fabric processing system of the present invention;

FIG. 4 is a schematic structural diagram of a freeze-drying device in the non-woven fabric processing system of the present invention;

FIG. 5 is a schematic view of the suppressor of the nonwoven fabric processing system of the present invention;

fig. 6 is a schematic structural view of a comb plate in the non-woven fabric processing system of the present invention;

FIG. 7 is an assembly view of the conveyor belt and the suppressor of the non-woven fabric processing system of the present invention;

fig. 8 is a schematic structural view of the transmission belt in the non-woven fabric processing system of the present invention.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

Nonwoven processing systems typically require the following treatment of the nonwoven: the non-woven fabrics are firstly unreeled through an unreeling machine, then the unreeled non-woven fabrics are coated with the solution of the functional raw materials, and the non-woven fabrics coated with the solution are sterilized again. After the non-woven fabric is subjected to sterilization treatment, different processing technologies can be adopted for further processing according to different types of the masks. The mask specifically comprises the following components: wet masks and dry masks. After the wet facial mask is subjected to sterilization treatment, cutting and packaging procedures are carried out; and for the dry facial mask, after sterilization treatment, dehydration treatment is also needed, and finally the water content of the non-woven fabric is reduced to form the dry facial mask. The utility model discloses to facial mask coating solution and disinfect, correspond and designed equipment of spraying and microwave sterilization, and still correspond to the freeze-drying equipment of having designed to dry facial mask. The spraying equipment, the microwave sterilization equipment and the freeze-drying equipment can be respectively and independently applied to a system for preparing the mask by using the non-woven fabric in the conventional technology, and can also be simultaneously used in the same system. The following description is directed to specific structural forms of the spray apparatus, the microwave sterilization apparatus, and the freeze-drying apparatus.

Design for spraying equipment

As shown in fig. 1 to 3, the shower apparatus 1 includes: a support 11, a rolling assembly 12 and a spraying assembly 13; the rolling assembly comprises a power roller 121, a first auxiliary roller 122 and a second auxiliary roller 123 which are arranged on the bracket, wherein the first auxiliary roller is positioned above the power roller, and the second auxiliary roller is positioned below the power roller; a conveying area 101 for clamping and conveying non-woven fabrics is formed between the power roller and the first auxiliary roller, and a temporary solution storage area 102 is formed between the power roller and the second auxiliary roller; the spray assembly includes a reservoir (not shown) for storing a solution of the functional material and a plurality of spray nozzles 131 for spraying the solution in the reservoir onto the surface of the nonwoven fabric 100 wound on the power roller.

Specifically, the nonwoven fabric 100 may be supplied in the form of a nonwoven fabric roll, and may be automatically unwound by an unwinding machine. The specific structural form of the unreeling machine adopts the existing unreeling equipment, and is not limited herein. After the unreeling machine unreels the non-woven fabric 100, the non-woven fabric 100 enters the spraying equipment. The nonwoven fabric 100 output from the unwinder passes around the bottom of the second auxiliary roller, passes through the region between the second auxiliary roller and the power roller, is wound around the power roller, and is finally output under the pressure of the first auxiliary roller 122. Wherein the spraying device is provided with a power driving mechanism (such as a motor) to drive the power roller to rotate, and the first auxiliary roller 122 is pressed on the power roller 121, so that the non-woven fabric 100 can be dragged to convey forwards; the solution sprayed onto the nonwoven fabric by the nozzle flows along the nonwoven fabric 100 into the solution temporary storage area 102, and the nonwoven fabric 100 passes around the bottom of the second auxiliary roller, moves upward along the surface of the power roller, and is output from the conveying area 101 between the power roller and the first auxiliary roller. In addition, the second auxiliary roller is located below the power roller, a solution temporary storage area 102 is formed between the second auxiliary roller and the power roller, after the spraying component sprays the solution on the non-woven fabric 100 through the nozzle 131, the solution flows to the solution temporary storage area 102 below under the action of gravity, and a certain amount of solution is temporarily stored in the solution temporary storage area 102. Like this, alright realize adopting when the spraying subassembly realizes the spraying solution, can also play the effect of soaking non-woven fabrics 100 through solution scratch pad 102, satisfy on the one hand and adopt the mode of spraying in order to reduce the solution quantity in order to reduce manufacturing cost, on the other hand simulation mode of soaking ensures that non-woven fabrics 100 can be soaked completely by solution, reaches good coating solution's effect. Compared with the prior art, the method only sprays the solution on the non-woven fabric, and can ensure that the non-woven fabric is completely soaked; compared with the mode of soaking the non-woven fabric in the solution, the use amount of the solution can be effectively reduced.

In the process of processing the non-woven fabrics 100 with different thicknesses, the distance between the power roller 121 and the first auxiliary roller 122 and the distance between the power roller 123 and the second auxiliary roller 123 need to be adjusted, and the rolling assembly further comprises a first height adjusting assembly 14 for adjusting the height of the first auxiliary roller and a second height adjusting assembly 15 for adjusting the height of the second auxiliary roller. Specifically, the first height adjusting assembly 14 and the second height adjusting assembly 15 can correspondingly adjust the height positions of the first auxiliary roller 122 and the second auxiliary roller 123 as required, so as to meet the processing requirements of the non-woven fabrics 100 with different thicknesses. The first and second height adjusting assemblies 14 and 15 adjust the heights of the first and second auxiliary rollers 122 and 123 in various ways. For example: the first height adjusting assembly and the second height adjusting assembly respectively comprise two symmetrically-arranged height adjusting modules, each height adjusting module comprises a bearing seat, a screw rod and a supporting seat, the supporting seat is provided with a threaded hole which is vertically arranged, the screw rods are in threaded connection in the threaded holes, the bearing seats are vertically slidably mounted on the support, and the screw rods are connected with the bearing seats and can rotate relative to the bearing seats. Specifically, the screw rod is rotated to enable the bearing seat to move up and down, so that the requirement of height adjustment of the auxiliary roller is met. The screw rod is provided with a hand wheel used for driving the screw rod to rotate, and the screw rod is rotated by rotating the hand wheel. In addition, in order to ensure that the nonwoven fabric 100 can be smoothly and continuously conveyed after being discharged from the conveying zone 101, the roll pressing assembly further includes a driven roller 124 and an endless belt (not labeled) wound between the driven roller and the power roller with respect to the nonwoven fabric 100 coated with the solution. The nonwoven 100 exiting from the transport zone 101 will continue to be transported forward following the endless belt, ensuring that the nonwoven 100 remains flat.

Further, the second auxiliary roller is positioned below the power roller and is arranged to be biased to a side close to the nozzle. Specifically, the second auxiliary roller is disposed at a position offset to a side close to the nozzle, so that the solution can more easily flow to the solution temporary storage area 102, and the non-woven fabric passing through the solution temporary storage area can be effectively soaked.

Still further, the spray assembly further includes a shield 133, the shield is disposed on the bracket, the nozzle is disposed in the shield, a discharge hole 1330 opened toward the power roller is disposed at a lower portion of the shield, and the solution sprayed from the nozzle is sprayed to the surface of the non-woven fabric 100 wound around the power roller through the discharge hole. Specifically, the nozzle is shielded by the shield, so that the outward splashing of the solution in the process of spraying the solution can be avoided. The protective cover comprises a front baffle, a rear baffle, a top plate and two side plates, wherein a first bending part (not marked) bending towards the direction of the power roller is arranged at the lower part of the front baffle, a second bending part (not marked) bending towards the direction of the power roller is arranged at the lower part of the rear baffle, the side plates are arranged between the side parts of the front baffle and the rear baffle, a cylindrical structure is integrally formed, and the top plate is arranged at the top of the cylindrical structure. Preceding baffle, backplate and two curb plates can adopt welding or riveted mode to link together and form the cartridge type structure, and the roof then can adopt detachable mode to install on the cartridge type structure, and the four corners that detachable connected mode can adopt the roof passes through the screw connection on the cartridge type structure.

Furthermore, the spraying component is further provided with a receiving tray 132, the receiving tray is mounted on the bracket and located at the bottom of the rolling component, and the bottom of the receiving tray is provided with a liquid outlet (not marked), and the liquid outlet is connected with the liquid storage container. Specifically, the receiving tray can collect redundant solution at the bottom to realize solution recycling. In the process of spraying the nonwoven fabric 100, the sprayed solution will be more than the amount absorbed by the nonwoven fabric 100, wherein a part of the excess solution is temporarily stored in the solution temporary storage area 102, and the solution overflowing or falling from the nonwoven fabric 100 can be collected and recovered by the receiving tray 132.

Through forming between power roller and the second auxiliary roller and being used for the solution buffers, realize spraying coating solution to the non-woven fabrics in spraying subassembly spun solution on the one hand, the unnecessary solution of on the other hand assembles in the solution buffers for the non-woven fabrics through the solution buffers reaches the effect of soaking solution, thereby can ensure that the non-woven fabrics can even coating solution, when reducing the solution use amount, ensure to spray coating solution and reach the effect of the even coating solution of non-woven fabrics.

The following description is directed to specific structural forms of the spray apparatus, the microwave sterilization apparatus, and the freeze-drying apparatus.

Second, aiming at the design of microwave sterilization equipment

As shown in fig. 1, 4-7, the microwave sterilization apparatus generally includes a microwave heating tunnel 2, a microwave suppressor 3, and a conveyor belt (not shown), wherein a microwave generator (not shown) is disposed in the microwave heating tunnel 2; the microwave suppressor comprises a metal sleeve 31 and an inner bushing 32 arranged in the metal sleeve, a plurality of comb plates 33 for blocking microwave transmission are arranged between the metal sleeve and the inner bushing, and a microwave absorbing component (not shown) for absorbing microwaves is arranged between two adjacent comb plates; the comb plate is mounted on the inner wall of the metal sleeve, and the comb structure of the comb plate extends towards the inner bushing direction; the two ends of the microwave heating tunnel are respectively provided with the microwave suppressors, and the conveying belt penetrates through the microwave heating tunnel and the microwave suppressors and is used for conveying non-woven fabrics.

Specifically, the nonwoven fabric 100 is coated with the solution and then conveyed to the microwave heating tunnel 2 by a conveyor belt to be subjected to microwave heating sterilization treatment, and both ends of the microwave heating tunnel 2 are open in order to realize continuous production. In order to prevent the microwave from leaking to the outside, the microwave suppressors are disposed at both ends of the microwave heating tunnel 2. In order to improve the microwave leakage prevention capability of the microwave suppressor, besides the microwave absorbing component is arranged in the microwave suppressor, a comb plate 33 is also arranged, and the comb plate 33 is made of a metal material to block the transmission of microwaves. Microwaves leaked out of the end part of the microwave heating tunnel 2 enter the microwave suppressor, the inner liner 32 is made of a material which can be penetrated by microwaves, and the microwaves can penetrate the inner liner 32 and be absorbed by the microwave absorbing part; simultaneously, the microwave is in the microwave suppressor transmission process, the microwave can receive the stopping of fishback 33 to, the fishback 33 of dentate structure can also effectually disturb the direction of microwave transmission, thereby can more effectually make the microwave transmit into microwave absorption part, with effectual absorption microwave, furthest's reduction microwave reveals the volume to the external world, thereby improves microwave safety in utilization. The microwave absorbing component is made of a material capable of absorbing microwaves, such as a wave absorbing material adopted in a suppressor in the conventional technology, and specific material components of the microwave absorbing component are not limited and described in detail herein; similarly, the inner liner 32 is made of a material that is transparent to microwaves, and the specific material composition thereof is not limited or described herein.

Further, along the direction of delivery of conveyer belt, two comb tooth structures dislocation arrangement on the comb plate of adjacent arrangement. Specifically, the comb plate arranged in a staggered mode can disturb the microwave transmission direction to the maximum extent along the microwave outward leakage direction, so that the microwave can be absorbed more effectively. Preferably, in order to dynamically disturb the microwave transmission direction, the comb plate is arranged perpendicular to the conveying direction of the conveying belt and is slidably arranged on the inner wall of the metal sleeve; the conveying belt is also used for driving the comb plate to move in a reciprocating mode. Specifically, the conveying belt drives the comb plate to move through the conveying belt in the operation process, so that the comb plate can more effectively play a role in dispersing microwaves. And in order to realize the conveyer belt drive the fishback removes, then need carry out corresponding improvement to the conveyer belt, specifically do: the conveying belt generally includes a driving roller, a driven roller, and a conveying belt 200 wound around the driving roller and the driven roller, the driving roller being rotated by power supplied from a driving mechanism (e.g., a motor), and the conveying belt 200 being used to convey the non-woven fabric. Wherein, the surface of transmission band 200 is provided with bellied gib block 201, the gib block is the wave structure, the neck bush is seted up and is used for holding the fluting (not marking) of gib block, the gib block is arranged in the fluting and inserts simultaneously between one of them two adjacent broach structures of broach board. Specifically, in the moving process of the conveying belt 200, the guide strip 201 moves in the groove, the guide strip 201 is inserted between two adjacent comb tooth structures of the comb tooth plate, and the guide strip 201 in the wave-shaped structure can drive the comb tooth plate to move back and forth.

The top and the bottom of the metal sleeve are respectively provided with the comb plate, and the top and the bottom of the inner lining are respectively provided with the grooves, so that the dispersing effect of the comb plate on microwaves is improved more effectively. In addition, both edges of transmission band 200 are provided with respectively the gib block, two form the year thing district that is used for placing the non-woven fabrics between the gib block, corresponding, then form cooperation portion 330 between two broach structures of broach board tip.

In order to realize that the comb plate is in reciprocating motion in the metal sleeve, the inner wall of the metal sleeve can be provided with a sliding groove, the comb plate is provided with a folded edge, the folded edge is arranged in the sliding groove in a sliding manner, and therefore the comb plate can slide smoothly in the metal sleeve under the matching action of the folded edge and the sliding groove. In order to ensure smooth movement of the conveyor belt 200, part of the comb plate can be selected to be matched with the guide strip 201 to realize sliding, and the comb structure of the comb plate matched with the guide strip 201 is longer, so that two adjacent comb structures can be clamped on two sides of the guide strip 201; and the comb tooth structures of the rest comb tooth plates are shorter, so that the comb tooth plates cannot contact with the guide strips 201. Thus, the resistance of the comb plate is small in the moving process of the conveying belt 200, so that the conveying smoothness is ensured.

Through additionally increasing the fishback at the microwave suppressor, the fishback can block microwave transmission on the one hand, and the broach structure on the other hand fishback can play the effect of dispersion to the microwave in the transmission, and the microwave of dispersion can be more effectual be absorbed by microwave absorption part to reduce the volume of revealing of microwave, improve safety in utilization and reliability.

Thirdly, aiming at the design of the freeze-drying equipment

As shown in fig. 1 and 8, the freeze-drying apparatus 4 includes: a freeze-drying tunnel 41, a conveyor belt 42 penetrating the freeze-drying tunnel and conveying the non-woven fabric coated with the solution, a spray unit 43 for spraying liquid nitrogen to the articles on the conveyor belt, which is located above the conveyor belt, and a liquid nitrogen tank (not shown) connected to the spray unit and supplying the liquid nitrogen to the spray unit.

Specifically, the freeze-drying device 4 performs freeze-drying processing on the nonwoven fabric conveyed on the conveyor belt 42 using liquid nitrogen as a refrigeration source, and the liquid nitrogen stored in the liquid nitrogen tank is conveyed to the spray assembly, which sprays the liquid nitrogen onto the nonwoven fabric on the conveyor belt 42. The non-woven fabrics refrigerate fast under the effect of liquid nitrogen, and along with the evaporation of liquid nitrogen, the liquid nitrogen will carry the water in the non-woven fabrics and evaporate together to reach the effect of carrying out freeze drying to the non-woven fabrics. Like this, the non-woven fabrics water content after freeze-drying equipment 4 handles is lower (the water content of general non-woven fabrics is less than 6%) to form freeze-drying non-woven fabrics, thereby need not to add additives such as antiseptic in the solution of coating at the non-woven fabrics, improve the safety in utilization. Wherein, the spray assembly can include shower and liquid nitrogen conveying pipe, and the shower passes through liquid nitrogen conveying pipe and liquid nitrogen container, and the liquid nitrogen of liquid nitrogen container output flows to the shower through the liquid nitrogen conveying pipe, and is provided with a plurality of holes that spray on the pipe wall of shower, and the liquid nitrogen sprays on the non-woven fabrics of below through each hole that sprays. In order to control the switch conveniently, an electric control valve is additionally arranged between the liquid nitrogen delivery pipe and the liquid nitrogen tank, and the spraying operation of the liquid nitrogen is controlled through the electric control valve. For concrete representation entities of the liquid nitrogen delivery pipe and the electric control valve, conventional liquid nitrogen can be adopted to supply components in the delivery equipment, and no limitation or repeated description is given here. Wherein, the liquid nitrogen tank can be configured above the freeze-drying tunnel 41, so as to realize the flow of the liquid nitrogen to the spray component 43 below by using gravity.

Further, in order to reduce the amount of liquid nitrogen used and improve the freeze-drying effect, the conveyor belt includes a driving roller 421, a driven roller 422, and a conveyor belt 423 wound around the driving roller and the driven roller; the freeze-drying device 4 further comprises a chain wheel assembly 43, a negative pressure assembly and a synchronization assembly 45, wherein the synchronization assembly comprises two first chain wheels 431 and a chain 432 wound on the two first chain wheels, and the chain moves synchronously with the conveying belt 42; the negative pressure assembly comprises a housing 46 and a vacuum pump (not shown), the housing is connected with the vacuum pump through a pipeline, the spray pipe is positioned in the housing, the liquid nitrogen conveying pipe penetrates through the housing 46 in a sealing manner, and the liquid nitrogen conveying pipe can adopt a telescopic pipe structure to meet the requirement that the spray pipe moves along with the housing; the synchronizing assembly includes a sliding block 451 slidably disposed in the freeze-drying tunnel above the conveyor belt 42, a lifting mechanism 452 mounted on the bottom of the sliding block, a telescopic mechanism 453 mounted on the sliding block via a one-way bearing 454 and a one-way bearing (not labeled). Specifically, in the process that the non-woven fabric is driven by the conveyor belt 42 to move, the chain 432 and the conveyor belt 42 move synchronously, and the second chain wheel 454 can be fixed and rotate relative to the chain 432 by using the one-way bearing under the condition that the telescopic mechanism 453 does not operate. When the non-woven fabric on the conveyor belt 42 needs to be lyophilized, the extension mechanism 453 pushes the sliding seat 451 to move in the moving direction of the non-woven fabric, and the second chain wheel 454 is fixed relative to the chain 432 by the one-way bearing under the action of the extension mechanism 453, so that the sliding seat 451 and the non-woven fabric can synchronously move in the same direction. At this time, the elevating mechanism 452 operates to press the housing 46 against the conveyor belt 42, a relatively closed space is formed between the housing 46 and the conveyor belt 42, and the shower pipe sprays liquid nitrogen to the nonwoven fabric in the housing 46, so that the nonwoven fabric covered by the housing 46 is rapidly cooled. Then, the vacuum pump is activated to create a negative pressure in the space formed between the casing 46 and the conveyor belt 42 to accelerate the evaporation of the liquid nitrogen, while at the same time being sub-ambient, more advantageous for the lyophilization process of the non-woven fabric. Through sprocket assembly 43 and synchronization module 45 cooperation, can realize making relative confined space to the non-woven fabrics in the conveyer belt 42 removal, this space can follow conveyer belt 42 synchronous syntropy and move, utilizes this space can realize a small amount of liquid nitrogen use amount to, can also form local negative pressure to improve freeze-drying's efficiency and freeze-drying's effect. An insulating structure may be used for the casing 46 to reduce the effect of the liquid nitrogen on other exposed parts of the freeze drying tunnel 41.

And the rotating shaft of one of the first chain wheels is in transmission connection with the rotating shaft of the driving roller. Specifically, the rotating shaft of the drive roll is driven by a driving mechanism (such as a motor) to rotate, and the rotating shaft of the drive roll drives the first chain wheel to rotate through a transmission mechanism (in a gear box or synchronous belt mode) so as to achieve the purpose of synchronous operation. The running direction of the chain 432 may be in synchronization with the conveying belt 423 or in synchronization with the conveying belt 423 and in reverse, but it is sufficient to ensure that the sliding seat 451 can move in synchronization with the nonwoven fabric on the conveying belt 423.

For concrete entities of the lifting mechanism 452 and the telescopic mechanism 453, the lifting mechanism may be a screw rod lifter or a hydraulic lifter; the telescopic mechanism can be an electric push rod or an air cylinder or an oil cylinder, and is not limited and described herein. The specific control method comprises the following steps: telescopic machanism drive the sliding seat removes so that along conveyer belt 42's direction of delivery the non-woven fabrics linear velocity is the same on sliding seat's the linear velocity and the conveyer belt 42, elevating system drives the housing moves down and pastes and lean on the surface at conveyer belt 42 and cover the non-woven fabrics, the shower sprays the liquid nitrogen to the article of treating freeze-drying earlier then starts the vacuum pump so that form the negative pressure in the cavity that constitutes between housing and the conveyer belt 42, starts microwave generator again and carries out microwave heating, and finally, elevating system drives the housing resets and telescopic machanism drives the sliding seat resets.

In addition, along the direction of delivery of conveyer belt 42, there are a plurality of in proper order the interval arrangement in the freeze-drying tunnel synchronization assembly, every on the sliding seat elevating system is last to be configured with the housing, every be provided with in the housing the shower. Specifically, in order to meet the requirement of efficient freeze-drying for continuous transportation of the non-woven fabrics, a plurality of housings are arranged to simultaneously freeze-dry the non-woven fabrics below, so as to improve the freeze-drying efficiency.

Preferably, a microwave generator may be disposed in the freeze-drying tunnel, and the microwave generated by the microwave generator may penetrate the casing. Particularly, the liquid nitrogen is sprayed in the housing and the process of vacuumizing is carried out, and the microwave generator heats the non-woven fabric shielded by the housing in a microwave manner, so that the efficiency and the effect of freeze-drying can be improved.

Through spray the non-woven fabrics that the liquid nitrogen comes on to the conveyer belt in freeze-drying tunnel and freeze and drying process to form freeze-dried non-woven fabrics, the water content after the non-woven fabrics freeze-drying process is lower, can need not the components such as the addition antiseptic of solution again, thereby reduces the stimulation to user's skin, uses experience nature in order to improve the user.

Based on the design of the spraying equipment, the microwave sterilization equipment and the freeze-drying equipment in the technical scheme. Different configurations are possible for different processing requirements of the mask.

For wet masks, a spray device and a microwave sterilization device can be arranged in the non-woven fabric processing system. Namely, the non-woven fabric processing system comprises an unreeling machine, a spraying mechanism, a microwave heating tunnel and a conveying belt; the unreeling machine, the spraying mechanism and the microwave heating tunnel are sequentially arranged, microwave suppressors are respectively arranged at two end parts of the microwave heating tunnel, and the conveying belt penetrates through the microwave heating tunnel and the microwave suppressors. After the unreeling machine automatically unreels the non-woven fabric to be processed, the non-woven fabric unreeled is sprayed with a solution by a spraying mechanism, and then the non-woven fabric is conveyed by a conveying belt to enter a microwave heating tunnel for microwave heating sterilization.

For the dry mask, a spraying device, a microwave sterilization device and a freeze-drying device can be simultaneously arranged in the non-woven fabric processing system. Non-woven fabrics processing system is including the machine of unreeling that arranges in proper order, spraying mechanism, microwave heating tunnel and freeze-drying tunnel promptly, wherein, microwave heating tunnel and freeze-drying tunnel interconnect, the front end portion in microwave heating tunnel and the rear end portion in freeze-drying tunnel then dispose the microwave suppressor, in addition, the conveyer belt then runs through microwave heating tunnel, freeze-drying tunnel and microwave suppressor. In addition, for the conveyer belt, an integral conveyer belt can be adopted, and a split conveyer belt can also be adopted, namely, corresponding conveyer belts are respectively and independently configured for the microwave heating tunnel and the freeze-drying tunnel.

In the dry facial film processing, as shown in fig. 1, a drying and setting tunnel 5 may be disposed outside the two microwave suppressors 3 in the nonwoven fabric processing system, and an electric heater (not shown) may be provided in the drying and setting tunnel 5. The non-woven fabrics are treated by the spraying equipment 1 and then enter one of the drying and shaping tunnels 5 for preheating treatment, then the non-woven fabrics are subjected to microwave heating and heat sterilization treatment through the microwave heating tunnel, the sterilized non-woven fabrics enter the drying and shaping tunnel for quick freezing and dehydration treatment, and the dried non-woven fabrics output from the drying and shaping tunnel enter the other drying and shaping tunnel 5 for final heating and shaping treatment. And finally, packaging after slitting treatment.

Claims (9)

1. A non-woven fabrics spraying equipment which characterized in that includes: the device comprises a support, a rolling assembly and a spraying assembly;

the rolling assembly comprises a power roller, a first auxiliary roller and a second auxiliary roller which are arranged on the bracket, wherein the first auxiliary roller is positioned above the power roller, and the second auxiliary roller is positioned below the power roller; a conveying area for clamping and conveying non-woven fabrics is formed between the power roller and the first auxiliary roller, and a temporary solution storage area is formed between the power roller and the second auxiliary roller;

the spraying assembly comprises a liquid storage container and a plurality of nozzles, the liquid storage container is used for storing solution of the efficacy raw materials, and the nozzles are used for spraying the solution in the liquid storage container to the surface of the non-woven fabric wound on the power roller.

2. The nonwoven fabric spray apparatus of claim 1, wherein the second auxiliary roller is located below the power roller and is disposed biased toward a side adjacent to the nozzle.

3. The non-woven fabric spraying device according to claim 1, wherein the spraying assembly further comprises a shield, the shield is arranged on the support, the nozzle is positioned in the shield, a discharge hole which is opened towards the power roller is formed in the lower portion of the shield, and the solution sprayed by the nozzle is sprayed outwards to the surface of the non-woven fabric wound on the power roller through the discharge hole.

4. The non-woven fabric spraying device according to claim 3, wherein the shield comprises a front baffle plate, a rear baffle plate, a top plate and two side plates, a first bending part bending towards the power roller is arranged at the lower part of the front baffle plate, a second bending part bending towards the power roller is arranged at the lower part of the rear baffle plate, the side plates are arranged between the side parts of the front baffle plate and the rear baffle plate, a cylindrical structure is formed integrally, and the top plate is arranged at the top of the cylindrical structure.

5. The non-woven fabric spraying device according to claim 1, wherein the spraying component is further provided with a receiving disc, the receiving disc is mounted on the support and is positioned at the bottom of the rolling component, and the bottom of the receiving disc is provided with a liquid outlet which is connected with the liquid storage container.

6. The nonwoven fabric spray apparatus of claim 1, wherein the roller assembly includes a first height adjustment assembly for adjusting the height of the first auxiliary roller, and a second height adjustment assembly for adjusting the height of the second auxiliary roller.

7. The non-woven fabric spraying equipment according to claim 6, wherein the first height adjusting assembly and the second height adjusting assembly respectively comprise two symmetrically arranged height adjusting modules, each height adjusting module comprises a bearing seat, a screw rod and a supporting seat, a threaded hole is formed in each supporting seat, the screw rods are in threaded connection in the threaded holes, the bearing seats are vertically slidably mounted on the supports, and the screw rods are connected with the bearing seats and can rotate relative to the bearing seats.

8. The nonwoven fabric spray apparatus of any of claims 1-7, wherein the roll assembly further comprises a driven roller and an endless belt wound between the driven roller and the power roller.

9. A nonwoven fabric processing system comprising the nonwoven fabric spray apparatus of any of claims 1-8, the nonwoven fabric processing apparatus further comprising a microwave sterilization device; the microwave sterilization device comprises a microwave heating tunnel and a conveying belt, wherein the conveying belt penetrates through the microwave heating tunnel, the conveying belt is used for conveying non-woven fabrics output by the non-woven fabric spraying equipment, and a microwave generator is arranged in the microwave heating tunnel.

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