WO2021258413A1

WO2021258413A1 - Mask and manufacturing process and device

Info

Publication number: WO2021258413A1
Application number: PCT/CN2020/099499
Authority: WO
Inventors: 李秋红; 蔡东豪; 高爱国
Original assignee: 北京倍舒特妇幼用品有限公司
Priority date: 2020-06-24
Filing date: 2020-06-30
Publication date: 2021-12-30
Also published as: CN111743240A

Abstract

A mask, comprising a mask main body and mask fixing straps on two sides of the mask, the mask fixing straps being formed by combining an elastic cloth and a spunlace cloth, and being folded into a stacked shape. The material of a fixing belt uses the property of an elastic cloth having relatively large elasticity and the property of a spunlace cloth having relatively large strength, so that the fixing belt formed by combining the two materials has certain elasticity and relatively large strength, and is not easily broken during use. Further provided are a manufacturing process and device for the mask. A point-connecting process and a point-connecting device are used, after point-connecting needles penetrate through the materials, the material around point-connecting needle holes is fused slightly and compacted, so that the fixing belt does not scatter during the production of the mask, achieving the purpose of manufacturing fixing belt-type masks in industrial production.

Description

Mask and manufacturing process and device

Technical field

The invention belongs to the field of sanitary product device manufacturing, and specifically relates to a mask and a manufacturing process and device.

Background technique

At the end of the 19th century, masks began to be used in the field of medical care. In the "Spanish Influenza" in 1918, people were forced to wear masks to protect against influenza. This was also the beginning of the widespread spread of masks. Since then, not only has medical science developed rapidly, masks have also become indispensable medical and health tools and have been widely popularized. In 1897, the German Midach introduced a method of covering the nose and mouth with gauze to prevent the invasion of bacteria. Later, someone made a six-layer gauze mask and sewed it on the collar. Just turn it over and cover your nose and mouth when you use it. However, this kind of mask has to be held down by hand, which is extremely inconvenient. Later, someone came up with a strap on the ear, which has become a mask that people often use today.

The mask must be of the right size and the way of wearing it must be correct for the mask's protective function to be effective. Masks on the market are generally divided into rectangular and cup-shaped. Rectangular masks must have at least three layers of paper structure to have a protective effect. The user needs to press the iron wire of the mask on the bridge of the nose, and then spread the entire mask along the bridge of the nose to be effective. For cup masks, make sure that the density of the mask is sufficient after being attached to the face so that the exhaled air will not leak out to be effective.

For masks that are strapped to the ears, the length of the ear straps is fixed. Because everyone's head size is not the same, the distance between the head and the ears is not the same. This often happens. Some people wear the same earband mask too tightly, and some people wear it too loosely. Wear an ear-band mask that is too tight, and the density of the mask is sufficient after being attached to the face, and the exhaled air will not leak out, and the mask has a protective effect; while wearing an ear-band mask that is too loose, the density after the mask is attached to the face Not enough, the exhaled air will leak out, and the mask does not have a protective effect.

There is another situation: when the medical staff in the hospital are working, they need to wear protective clothing first. When the medical staff wear the protective clothing, because the protective clothing has already wrapped the head of the medical staff, at this time the earband mask cannot be conveniently worn on the ears of the medical staff, while the strapped mask can be easily tied to the medical staff. The back of the head.

Compared with earband masks, strap-on masks have the advantage of being in use: the wearer can easily adjust the tightness of the straps by themselves, which can ensure that the mask has sufficient density behind the face and the exhaled air will not leak out. Make the mask have a protective effect. At the same time, the wearer can conveniently adjust the tightness of the strap by himself, which also maintains the wearing comfort of the wearer.

Compared with earband masks, strap-on masks have another advantage when used: when the wearer cannot wear the mask himself, the strap-on masks can be easily worn by others for the wearer. This situation often occurs, such as when medical staff have equipment in their hands, or people with upper limbs or hands that are disabled.

Although strap-on masks have a large number of applications in production and life, it is undeniable that strap-on masks also have their specific shortcomings. Especially in the process of making strap-on masks, because the straps of strap-on masks are too long, too long straps are often wrapped around the mask machine. Therefore, the band-type mask cannot be automatically produced on the mask machine, and the band must be welded or sewn on the mask body manually, which wastes a lot of manpower and reduces the production efficiency of the band-type mask. At the same time, the welding or sewing of the straps on the mask body by human hands also increases the bacterial content of the mask, which increases the potential safety hazards when the mask is worn.

Summary of the invention

The technical problem to be solved by the present invention is how to make the mask machine complete the automatic production of band-type masks, thereby providing a mask production device, and further providing a mask and providing its production process.

In a first aspect of the present invention, there is provided a mask including a mask body and mask fixing straps on both sides of the mask, wherein the mask fixing straps are composited by elastic cloth and spunlace cloth, and are folded into a laminated stack shape.

Preferably, the width of the fixing strap is between 10mm-25mm, preferably between 15mm-20mm.

Preferably, the mask fixing belt is a band, and the corresponding mask is a band-type mask.

Preferably, the mask fixing belt is an ear strap, and the corresponding mask is an ear strap type mask.

Preferably, 2-5 layers of the fixing strap are superimposed.

Elastic cloth, English (Elastic cloth), as the name implies, is a grey cloth with elasticity. The ribbed weave gives the grey cloth a certain degree of elasticity.

Spunlace cloth, also called spunlace non-woven fabric, is also called "spunlace cloth". The concept of "jet-spun net cloth" is derived from the mechanical acupuncture process. The so-called "jet spray net" is to use high-pressure water to pierce the fiber net to make the fibers entangle with each other, so that the original loose fiber net has a greater strength and a complete structure. The physical properties of this kind of spunlace non-woven fabric are different from common needle-punched non-woven fabrics. In terms of hand feeling and performance, it is the only non-woven fabric that can make its final product similar to textiles.

The material of the fixing belts on both sides of the mask of the present invention utilizes elastic cloth with greater elasticity and spunlace cloth with greater strength, so that the fixed belt after the combination of the two materials has certain elasticity and greater Strong, but not easy to break when in use.

In the second aspect of the present invention, a manufacturing process of the mask is provided, including manufacturing the mask body, manufacturing a fixing belt, and connecting the mask body and the fixing belt together, wherein the steps of making the fixing belt are as follows: composite elastic cloth and spunlace cloth A flat mask fixing belt is obtained; the flat straps are superimposed and become a laminated mask fixing belt; the laminated mask fixing belt is penetrated through the heating points of the dot connection mechanism with needles, and then the fixing belt is cut into a mask fixing belt strip.

Preferably, the manufacturing process steps are as follows:

(1) Composite meltblown non-woven fabric and inner non-woven fabric;

(2) Nose strips are evenly placed on the composite meltblown non-woven fabric and the inner non-woven fabric;

(3) The nose strip is covered by the outer non-woven fabric to become the nose strip mask body;

(4) After the nose strip mask body is folded in three, it becomes a three-fold mask body;

(5) The three-folded mask body becomes a circumferentially sealed mask body after passing through the circumferential sealing device;

(6) Composite elastic cloth and spunlace cloth to obtain flat mask fixing belt;

(7) The flat fixing belt is superimposed and becomes the laminated mask fixing belt;

(8) The fixed belt of the laminated mask is penetrated through the heating point of the point connecting mechanism with a needle, and then the fixed belt is cut into the fixed belt of the mask; because the material around the penetration hole is slightly melted, the fixed belt of the laminated point and the mask will not be scattered ,

(9) Fix the mask fixing strap on the peripheral mask body, and finally evenly divide the mask body connected with the mask fixing strap into a single piece of mask, and complete the production of the mask.

In a third aspect of the present invention, there is provided a layering and stacking device in the production of the fixed belt of the mask. The upper left folded plate is parallel to each other, and the lower right folded plate and the upper right folded plate are parallel to each other.

In the fourth aspect of the present invention, the point connecting device in the manufacturing of the fixing belt of the mask includes the point connecting upper wheel and the point connecting lower wheel; the point connecting needles evenly distributed on the outer surface of the upper wheel are used to penetrate the laminated fixing Belt: The heating rod is installed inside the upper wheel, the heating temperature is 150-190℃, and the recommended heating temperature is 160-180℃.

Preferably, in any of the above solutions, the point-connecting needle has a cone shape.

In a fifth aspect, a device for making the mask is provided, including a lower guide wheel, a nose strip wheel, a three-folding device, a peripheral sealing device, and a mask fixing belt fixing device. The lower guide wheel is used for composite meltblown non-woven fabric and inner non-woven fabric The cloth and nose strip wheel are used to evenly prevent the nose strip from being on the composite meltblown non-woven fabric and the inner non-woven fabric. The three-folding device trifolds the nose strip mask body covered by the non-woven fabric into a three-fold mask body. The peripheral sealing device is used to seal the three-fold mask body around to become the peripheral sealing mask body. It also includes upper guide wheels. All upper guide wheels are used for composite elastic cloth and spunlace cloth to obtain a flat fixing belt; also includes a laminated stacking device It is used for stacking flat fixing belts to obtain laminated fixing belts; it also includes a point connection device to penetrate the laminated fixing belts so that the fixing belts will not fall off; it also includes a fixing belt slitting device to cut the fixing belts In order to be fixedly connected with the main body of the mask.

Preferably, the peripheral sealing device includes a peripheral sealing upper wheel and a peripheral sealing lower wheel.

Preferably, in any of the above solutions, the manufacturing device further includes a peripheral sealing heating device, the peripheral sealing heating device includes an upper peripheral sealing heating element and a lower peripheral sealing heating element, and the upper peripheral sealing heating element is installed on the peripheral sealing upper wheel superior.

In any of the above solutions, it is preferable that the heating element of the upper and lower sealing is electric heating rods, and the heating temperature is 150-190°C, preferably 160-180°C.

Preferably, in any of the above solutions, the stacked stacking device is the stacked stacking device provided in the third aspect of the present invention.

Preferably, in any of the above solutions, the point connection device is the point connection device provided in the fourth aspect of the present invention.

The manufacturing process of the present invention can be realized by using the relevant device of the present invention, or the relevant device already in the prior art.

In summary, the material of the fixing belts on both sides of the mask of the present invention uses elastic cloth with greater elasticity and spunlace cloth with greater strength, so that the fixed belt after the two materials are combined has certain elasticity. It also has greater strength, and it is not easy to break when in use. The dot-connection process is adopted, and the material around the dot-connection pinhole is slightly melted and compacted by using the dot-connecting needle to penetrate the material, so that the fixing belt will not be scattered during the mask production, and the purpose of the band-type mask in the industrial production can be achieved.

The material of the fixing belts on both sides of the mask of the present invention is a composite of elastic cloth and spunlace cloth, folded into a laminated superimposed shape, using a dot connection process, using a dot connection needle to penetrate the material, and then the material around the dot connection pinhole is micro-melted and compacted. The fixed belt is not scattered during the production of masks, and the purpose of the production of bandage masks in industrial production is achieved.

The present invention has the following characteristics: the point connecting needle of the present invention is provided with a heated point connecting needle on the outer surface of the upper wheel by acupuncture to penetrate the laminated strap. The upper wheel is heated by a heating rod, and the fibers of the laminated strap can be micro-melted into one body. The material around the pinhole after the penetration is micro-melted, and the superimposed laminated strap will not be scattered after the dot is connected.

The beneficial technical effect of the present invention is that: the present invention invents various mechanical devices such as a lamination stacking device, a dot connection device, etc., and completes the automatic production of a band-type mask.

Description of the drawings

Figure 1 is a schematic diagram of a mask device and process according to the present invention;

Figure 2 is a schematic diagram of the nose strip applying device of the device shown in Figure 1;

Fig. 3 is a schematic diagram of a three-folding device of the device shown in Fig. 1;

Fig. 4 is a schematic diagram of the peripheral sealing device of the device shown in Fig. 1;

Fig. 5 is a schematic diagram of a stacking device of the device shown in Fig. 1;

6 is a schematic cross-sectional view of the laminated stacking device and the laminated strap of the device shown in FIG. 1;

Figure 7 is a schematic cross-sectional view of a laminated strap according to the present invention;

Fig. 8 is a schematic diagram of a point connection device of the device shown in Fig. 1;

Figure 9 is a schematic diagram of a point-attached strap according to the present invention;

Fig. 10 is a schematic diagram of a slitting device of the device shown in Fig. 1;

Figure 11 is a schematic diagram of a strap according to the present invention;

Figure 12 is a schematic diagram of the band cut according to the present invention;

Figure 13 is a schematic diagram of an ear strap according to the present invention.

Label description

Figure 1: Meltblown non-woven fabric-1, inner non-woven fabric-2, nose strip-3, outer non-woven fabric-4, nose strip mask body-5, three-fold mask body-6, and peripheral seal mask body-7 , Spunlace -8, elastic cloth -9, flat strap -10, initial stack strap -11, laminated strap -12, flattened strap -13, dotted strap -14, strap strip- 15. Bandage mask-16, lower guide wheel-21, nose wheel-22, outer non-woven guide wheel-23, three-fold upper wheel-24, three-fold lower wheel-25, peripheral seal upper wheel -26, Peripheral seal lower wheel-27, upper guide wheel -31, front pressure upper wheel -32, front pressure lower wheel -33, left lower folding plate -34, right lower folding plate -35, left upper folding plate -36, right upper folding plate- 37. Back pressure on the upper wheel -38, back pressure on the wheel -39, point connected to the upper wheel -41, point connected to the lower wheel -42, strap conveyor -43, strap upper cutting wheel -44, strap lower cutting wheel -45 , Mask conveying -46, ultrasonic welding -47, mask upper cutting -48, mask lower cutting -49, product conveying -50.

Figure 2: Meltblown non-woven fabric-1, inner non-woven fabric-2, nose strip-3, nose strip wheel-22, nose strip tube-22.1, nose strip groove-22.2, curved surface-22.3, eagle hook- 22.4;

Figure 3: Three-fold upper wheel -24, upper wheel small circle -24.1, upper wheel inclined surface -24.2, upper wheel large circle -24.3, three-fold lower wheel -25, lower wheel large circle -25.1, lower wheel inclined surface -25.2, lower wheel Small circle-25.3;

Figure 4: Weekly seal upper wheel -26, Zhou seal grid -26.1, Zhou seal groove -26.2, Last week seal heating -26.3, Zhou seal lower wheel -27, next week seal heating -27.1;

Figure 5: Left bottom folding board -34, left bottom folding guide edge -34.1, right bottom folding board -35, right bottom folding edge -35.1, left top folding board -36, left top folding guide edge -36.1, right top folding board -37, top right Folding guide edge -37.1;

Picture 6: Spunlace cloth-8, Spunlace cloth right end -8.1, elastic cloth -9, elastic cloth left end -9.1, left lower folding board -34, right lower folding board -35, left upper folding board -36, right upper folding board- 37;

Figure 7: Spunlace -8, spunlace cloth at the right end -8.1, stretch cloth -9, stretch cloth at the left end -9.1;

Figure 8: Click to connect to the upper wheel -41, click to connect the needle -41.1, heating rod -41.2, and click to connect to the lower wheel -42;

Figure 9: Spunlace -8, stretch cloth -9, point-and-connect needle-41.1;

Figure 10: Strap upper cutting wheel -44, Strap lower cutting wheel -45, slitting knife -44.1, suction port -45.1;

Figure 11: Spunlaced cloth-8, stretch cloth-9, dotted pinhole-14.1;

Picture 12: Bandage-15.1, cut-48 on the mask, cut-48.1 with a cutting knife, cut-49 under the mask.

Figure 13: Earband-17, dotted pinhole-14.1.

detailed description

In order to understand the content of the present invention more correctly and clearly, further description and explanation will be given below in conjunction with specific embodiments and drawings.

Example 1

This embodiment provides a strapping mask, a mask body and strapping strips, wherein the strapping strips are composited by elastic cloth and spunlace cloth.

Among them, the preparation of the mask body can refer to the prior art, and this embodiment also provides a specific manufacturing method. The production steps of the straps are: composite elastic cloth and spunlace cloth to obtain a flat mask fixing belt; the flat straps are superimposed to be a laminated mask fixing belt; the laminated mask fixing belt is penetrated by a needle through the heating point of the point connection mechanism , And then cut the straps to fix the masks.

Refer to Figures 1-12 for the device and process of making strap-on masks and strap structure in this embodiment. The specific description is as follows.

Figure 1: The meltblown nonwoven fabric (1) and the inner nonwoven fabric (2) of the present invention are combined into a plane by the outer circle of the lower guide wheel (21), and the composite meltblown nonwoven fabric (1) and the inner nonwoven fabric (2) The nose strip (3) is evenly placed on the nose strip wheel (22). The outer non-woven fabric (4) is covered on the melt-blown non-woven fabric (1) and the inner non-woven fabric (2) by an outer non-woven fabric guide wheel (23) to make a nose strip mask body (5). The nose strip mask body (5) is made into a three-fold mask body (6) after passing through the three-fold upper wheel (24) and the three-fold lower wheel (25) of the three-fold device. The three-folded mask body (6) passes through the circumferential sealing upper wheel (26) and the circumferential sealing lower wheel (27) of the circumferential sealing device to produce a circumferential sealing mask body (7).

The elastic cloth (9) and the spunlace cloth (8) are combined by the upper guide wheel (31) into a flat strap (10). The flat strap (10) is pressed by the upper wheel (32) and the lower wheel (33). ) Flatten into the initial stack of straps (11). The initial stacking strap (11) is composed of the lower left folding board (34), the lower right folding board (35), the upper left folding board (36) and the upper right folding board (37). . The laminated strap (12) is flattened by the rear pressing upper wheel (38) and the rear pressing wheel (39) to form a flattening strap (13). The flattening strap (13) is made up of the dot-connected upper wheel (41) and the dot-connected lower wheel (42). The dot-connected needle on the dot-connected mechanism is made into a dot-connected strap (14), because the dot-connected needle has The heating device melts the material around the hole slightly after the penetration, and the superimposed points will not be scattered with the band (14). The point connecting strap (14) is conveyed by the strap conveyor (43) to the strap upper cutting wheel (44) and the strap lower cutting wheel (45). The slitting device is composed of the cutting point and the strap (14) as the strap strip (15) The strapping strip (15) is welded on the peripheral mask body (7) by ultrasonic welding (47). Finally, cut the mask body (7) with the welded straps (15) evenly from the upper cut of the mask (48) and the lower cut (49) of the mask to form a single piece of strapped mask (16), and then transported by the product (50) Send it out and complete the production of the bandage mask.

The above-mentioned straps are made of elastic cloth and spunlace cloth. Another aspect of the present invention is an ear mask made of only one kind of non-woven cloth (FIG. 13). The process and equipment are the same as the banded mask. The ear straps (17) are welded to the mask body at both ends. After the ear straps (17) are folded, the pinholes (14.1) are connected to prevent the ear straps (17) from being scattered during the mask manufacturing process.

The device for evenly placing the nose strip (3) of the present invention: referring to the schematic diagram of the device for applying the nose strip (3) of the present invention (Figure 2), the neatly arranged nose strips (3) are arranged in the nose strip tube (22.1) in sequence. When any empty nose strip groove (22.2) of the rotating nose strip wheel (22) is aligned with the outlet of the nose strip tube (22.1), the nose strip (3) in the nose strip tube (22.1) falls into the nose strip groove ( 22.2) within. The nose strip wheel (22) continues to rotate, the curved surface (22.3) closes the exit of the nose strip tube (22.1), and the nose strip (3) will not continue to fall. The nose strip wheel (22) continues to rotate, and after the next empty nose strip groove (22.2) is aligned with the nose strip tube (22.1), the nose strip (3) continues to fall into the nose strip groove (22.2). An eagle hook (22.4) is designed in the nose strip groove (22.2). The eagle hook (22.4) is similar to an eagle peck. When the nose wheel (22) rotates, the eagle hook (22.4) hooks the inside of the nose strip groove (22.2). The nose strip (3) and the nose strip (3) will not protrude from the nose strip groove (22.2). The nose strip wheel (22) continues to rotate. When the nose strip groove (22.2) is perpendicular to the meltblown non-woven fabric (1) and the inner non-woven fabric (2), the nose strip (3) leaves the eagle hook (22.4) and falls On the melt-blown non-woven fabric (1) and the inner non-woven fabric (2), the process of uniformly placing the nose strip (3) of the present invention is completed.

It should be noted here that when the rotation direction of the nose strip wheel (22) is the same as the forward direction of the meltblown nonwoven fabric (1) and the inner nonwoven fabric (2), because the forward direction is the same, the nose strip (3) is in the meltblown The positioning of the non-woven fabric (1) and the inner non-woven fabric (2) is accurate; when the rotation direction of the nose wheel (22) is opposite to the advance direction of the meltblown non-woven fabric (1) and the inner non-woven fabric (2), because The advancing direction is different, and the positioning error of the nose strip (3) between the meltblown nonwoven fabric (1) and the inner nonwoven fabric (2) is relatively large.

After the nose strip (3) is evenly placed, the outer non-woven fabric (4) is guided by the outer non-woven fabric guide wheel (23) to cover the nose strip (3), the meltblown non-woven fabric (1) and the inner non-woven fabric (2). )superior. At this time, the outer non-woven fabric (4), the nose strip (3), the meltblown non-woven fabric (1) and the inner non-woven fabric (2) are formed into the nose strip mask body (5). The nose strip mask body (5) continues to move in a straight line, and becomes a three-fold mask body after passing through a three-folding device.

The three-folding device of the present invention: referring to the schematic diagram of the three-folding device of the present invention (Figure 3), the three-folding upper wheel (24) and the three-folding lower wheel (25) are on a vertical axis and form a step. Correspondingly: the upper wheel small circle (24.1) and the lower wheel great circle (25.1) are on the same vertical plane; the upper wheel inclined plane (24.2) and the lower wheel inclined plane (25.2) are on the same vertical plane; the upper wheel big circle (24.3) is in the same vertical plane The lower round small circle (25.3) is on the same vertical plane. There are 3 corresponding steps in this device.

When the three-fold upper wheel (24) and the three-fold lower wheel (25) rotate towards each other, the nose strip mask body (5) passes through the gap between the three-fold upper wheel (24) and the three-fold lower wheel (25). After the mask body (5) is squeezed by the upper wheel inclined surface (24.2) and the lower wheel inclined surface (25.2), the straight nose strip mask body (5) is deformed and folded. The three corresponding steps make the straight nose strip mask body (5) form three deformed folds to complete the three-folding of the mask.

The three-folded mask body continues to move in a straight line, and becomes a circumferentially sealed mask body after passing through the circumferential sealing device.

The peripheral sealing device of the present invention: referring to the schematic diagram of the peripheral sealing device of the present invention (Figure 4), the peripheral sealing upper wheel (26) and the peripheral sealing lower wheel (27) rotate relatively. The outer surface of the upper wheel (26) of the circumferential seal is a circumferential seal (26.1), and the middle part of the circumferential seal (26.1) is a concave circumferential seal groove (26.2). When the three-fold mask body passes through the gap between the upper circumferential seal wheel (26) and the lower circumferential seal wheel (27), the three-fold mask body is squeezed by the upper circumferential seal wheel (26) and the lower circumferential seal wheel (27) The three layers of materials of the three-fold mask body are pressed together into one body, that is, the three-fold mask body is sealed and compressed into neatly arranged squares to complete the sealing of the mask body.

The peripheral sealing heating device can be added: referring to the schematic diagram of the three-folding device of the present invention (Figure 4), the peripheral sealing upper wheel (26) is equipped with the upper peripheral sealing heating element (26.3), and the peripheral sealing lower wheel (27) is equipped with the lower peripheral sealing heating Components (27.1). The upper round heating element (26.3) and the lower round heating element (27.1) of the circumferential seal use electric heating rods, and the heating temperature is 170°C.

The spunlace cloth (8) and elastic cloth (9) are combined by the outer circle of the upper guide wheel (31) to form a flat strap (10). The flat strap is superimposed by a laminated stacking plate device to form a laminated strap (12) . The front pressure upper wheel (32) and the front pressure lower wheel (33) are opposed wheels with a smooth outer circular surface and relatively turning, which are used for leveling the straps (10).

The laminated stacking plate device of the present invention: refer to the schematic diagram of the stacking device of the present invention (Figure 5), the schematic diagram of the cross-sectional view of the stacking device and the laminated strap of the present invention (Figure 6) and the schematic diagram of the cross-sectional view of the laminated strap of the present invention (Figure 7) ).

The lower left folding guide edge (34.1) of the lower left flap (34) relies on the curved arc to gradually fold the flat strap (10) as it moves forward; and so on, the lower right edge (34.1) of the right lower flap (35) 35.1) Rely on the curved arc to make the flat strap (10) gradually fold in the process of advancing; the upper left edge (36.1) of the left upper flap (36) relies on the curved arc to make the flat strap (10) in the process of advancing Fold gradually; the upper right folded edge (37.1) of the upper right folded plate (37) relies on the curved arc to make the flat strap (10) gradually fold in the process of advancing.

The rear pressing wheel (38) and the rear pressing wheel (39) are a pair of opposite wheels with a smooth outer circular surface and relatively turning. They are used to level the laminated strap (12). After the laminated strap (12) is flattened To flatten the straps (13).

It is particularly important to note that the right end (8.1) of the spunlace cloth is not aligned with the right end of the elastic cloth (9), but a part of it; the left end (9.1) of the elastic cloth is not aligned with the left end of the spunlace cloth (8), and It is a part of the extension, and the length of the extension is approximately equal to the width of the circumferential seal.

The flattening strap (13) is penetrated by the point-connected upper wheel (41) as a point-connected strap (14), and the superimposed laminated straps will not be scattered.

Point connection device of the present invention: refer to the schematic diagram of the point connection device of the present invention (Figure 8) and the schematic diagram of the point connection strap of the present invention (Figure 9): the point connection needles (41.1) that are evenly distributed on the outer surface of the upper wheel (41) penetrate Laminated straps (12). Because the point is connected to the upper wheel (41) with a heating rod (41.2) for heating, the heating temperature is 170°C.

The shape of the dot connecting needle (41.1) is a cone, and the height of the cone needs to be set according to the thickness of the laminated strap. In the present invention, the ratio of the height of the cone to the thickness of the laminated strap is 1.2:1. If the height of the cone is too low, the point connecting needle (41.1) cannot penetrate the laminated band; the height of the cone is too high, the point connecting needle (41.1) is easy to break.

The point-connected straps (14) are cut into straps (15) in the slitting device. The width of the strapping strip (15) is 30mm. After that, the cutting device needs to be divided into 2 in the middle, and the width of each side is 15mm. The length depends on the number of superimposed layers. In this embodiment, 3 layers can be superimposed, or 4 After the layer is 2 layers, the length of the stack can also be changed slightly. If it is too wide, material will be wasted, and if the strap (15) is too narrow, it is easy to break.

Slitting device of the present invention: referring to the schematic diagram of the slitting device of the present invention (Figure 10) and the schematic diagram of the strap strip of the present invention (Figure 11), the strap upper cutting wheel (44) and the strap lower cutting wheel (45) rotate towards each other, and the strap The outer surface of the upper cutting wheel (44) is provided with evenly distributed slitting knives (44.1), and the spacing distance of each slitting knives (44.1) is the same as the width of the strap strip (15). The outer surface of the lower cutting wheel (45) of the strap is provided with suction ports (45.1) with gathering clouds. The suction port (45.1) is connected to a negative pressure source. The negative pressure generated at the suction port (45.1) can absorb the slitting knife (44.1) to cut The strapping strip (15) is on the outer surface of the lower strap cutting wheel (45) and rotates with the lower strap cutting wheel (45).

The strap (15) is transferred to the peripheral mask body (7) along with the rotation of the lower cutting wheel (45) of the strap. The strapping strip (15) and the peripheral sealing mask body (7) are conveyed by the mask (46) and welded on the peripheral sealing mask body through ultrasonic welding (47).

The mask body that has been welded with straps is cut into a single piece of mask at the middle of the strap by a cutting device composed of a mask upper cut (48) and a mask lower cut (49) to complete the manufacture of a strap mask.

Cutting device of the present invention: referring to the schematic diagram of the cutting device of the present invention (Figure 12), the mask upper cut (48) and the mask lower cut (49) rotate in opposite directions, and the outer circle of the mask upper cut (48) is equipped with a cutting knife (48.1), and the cutting knife ( 48.1) Cut at the middle of the strap strip (15), and the straps (15.1) are evenly distributed on both sides of the strap mask (16).

Before the bandage mask is bound, the metal strip is on the top. There are 2 folded straps on each side of the strap-on mask. Open one of the folded straps for binding. Gently pull the mask body, and then open the other folded strap to complete the mask binding. When binding, it is also necessary to avoid touching the inside of the mask body. The degree of tightness is completely adjusted by our own feelings. After the binding is completed, you need to adjust the position. This position is mainly for whether the mask is upright. Don't be skewed, as it will easily fail to protect it. Then lightly press the metal strip on the top of the mask, so that the metal strip fits tightly on the bridge of the nose, so that it can better protect and complete the binding of the bandage mask.

Compared with the prior art, the invention uses machines to complete the production of masks, reduces labor intensity of workers, greatly increases the production speed of masks, and is suitable for industrialized production of masks.

Example 2

The difference from Embodiment 1 is that the mask fixing belt is an ear belt, as shown in FIG. 13.

Example 3.1

The difference from Example 1 is that the heating temperature of the peripheral heating device is 160°C.

Example 3.2

The difference from Example 1 is that the heating temperature of the peripheral sealing heating device is 180°C.

The heating temperature of the peripheral sealing heating device is within the above range, and the fibers of the laminated strap (12) can be micro-melted into a whole, the point after penetration is connected with the pinhole (14.1) and the surrounding material is micro-melted, and the superimposed laminated strap point Will not be scattered after connecting.

Example 4.1

The difference from Example 1 is that the heating temperature of the heating rod of the dot connection device is 150°C.

Example 4.2

The difference from Example 1 is that the heating temperature of the heating rod of the dot connection device is 160°C.

Example 4.3

The difference from Example 1 is that the heating temperature of the heating rod of the dot connection device is 180°C.

Example 4.4

The difference from Example 1 is that the heating temperature of the heating rod of the dot connection device is 190°C.

Example 5.1

The difference from Embodiment 1 is that the width of the strapping strip (15) is 20 mm.

Example 5.2

The difference from Embodiment 1 is that the width of the strap (15) is 25 mm.

Example 5.3

The difference from Embodiment 1 is that the width of the strapping strip (15) is 40 mm.

Example 5.4

The difference from Embodiment 1 is that the width of the strapping strip (15) is 50 mm.

Example 6.1

The difference from Example 1 is that the ratio of the height of the cone to the thickness of the laminated strap is 1.1:1.

Example 6.2

The difference from Example 1 is that the ratio of the height of the cone to the thickness of the laminated strap is 1.3:1.

Example 6.3

The difference from Example 1 is that the ratio of the height of the cone to the thickness of the laminated strap is 1.4:1.

Example 7.1

The difference from Example 7.1 is that the heating temperature of the peripheral sealing upper wheel heating element (26.3) and the peripheral sealing lower wheel heating element (27.1) is 150°C.

Example 7.2

The difference from Example 7.1 is that the heating temperature of the peripheral sealing upper wheel heating element (26.3) and the peripheral sealing lower wheel heating element (27.1) is 160°C.

Example 7.3

The difference from Example 7.1 is that the heating temperature of the peripheral sealing upper wheel heating element (26.3) and the peripheral sealing lower wheel heating element (27.1) is 180°C.

Example 7.4

The difference from Example 7.1 is that the heating temperature of the peripheral sealing upper wheel heating element (26.3) and the peripheral sealing lower wheel heating element (27.1) is 190°C.

The heating temperature of the peripheral sealing upper wheel heating element (26.3) and the peripheral sealing lower wheel heating element (27.1) is within this temperature range. One body can make the seal of the mask more tight.

The masks obtained in all the above embodiments, whether they are band-type masks or ear-band masks, can satisfy the use, and the fixing belt is not easy to break, which can realize automated production and liberate labor.

It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that it is still The technical solutions described in the foregoing embodiments can be modified, or some or all of the technical features can be equivalently replaced; these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention .

Claims

A mask includes a mask main body and mask fixing straps distributed on both sides of the mask, and is characterized in that: the mask fixing straps are composited by elastic cloth and spunlace cloth, and are folded into a laminated shape.
The mask according to claim 1, characterized in that the width of the fixed strap is between 10mm-25mm, preferably between 15mm-20mm; preferably, the fixed strap is superimposed on 2-5 layers.
The mask according to claim 1 or 2, wherein the mask fixing belt is a strap, and the corresponding mask is a strap-type mask; or the mask fixing strap is an ear strap, and the corresponding mask is an ear-belt mask.
The manufacturing process of the mask according to any one of claims 1 to 3, including making the mask body, making the fixing belt, and connecting the mask body and the fixing belt together, characterized in that the steps of making the fixing belt are as follows: composite elastic cloth and water The thorn cloth is used to obtain a flat mask fixing belt; the flat fixing belt is superimposed to become a laminated mask fixing belt; the laminated mask fixing belt is penetrated through the heating points of the point connection mechanism with needles, and then the fixing belt is cut into a mask fixing belt strip.
The process of claim 4, wherein the manufacturing process steps are as follows:

(1) Composite meltblown non-woven fabric and inner non-woven fabric;

(2) Nose strips are evenly placed on the composite meltblown non-woven fabric and the inner non-woven fabric;

(3) The nose strip is covered by the outer non-woven fabric to become the nose strip mask body;

(4) After the nose strip mask body is folded in three, it becomes a three-fold mask body;

(5) The three-folded mask body becomes a circumferentially sealed mask body after passing through the circumferential sealing device;

(6) Composite elastic cloth and spunlace cloth to obtain flat mask fixing belt;

(7) The flat fixing belt is superimposed and becomes the laminated mask fixing belt;

(8) The fixed belt of the laminated mask is penetrated through the heating point of the point connecting mechanism with a needle, and then the fixed belt is cut into the fixed belt of the mask; because the material around the penetration hole is slightly melted, the fixed belt of the laminated point and the mask will not be scattered ,

(9) Fix the mask fixing strap on the peripheral mask body, and finally evenly divide the mask body connected with the mask fixing strap into a single piece of mask, and complete the production of the mask.
The lamination and stacking device in the production of the fixing belt of the mask according to any one of claims 1 to 3, comprising a left bottom folding plate, a right bottom folding plate, a left top folding plate, a right top folding plate, and a left bottom folding plate staggered from bottom to top The upper left folded plate is parallel to each other, and the lower right folded plate and the upper right folded plate are parallel to each other.
The overlapping point connecting device in the production of the fixed belt of the mask according to any one of claims 1 to 3, comprising point connecting upper wheel and point connecting lower wheel; point connecting needles evenly distributed on the outer surface of the upper wheel for penetrating Laminated fixing belt; there is a heating rod inside the point connecting wheel, the heating temperature is 150-190℃, and the recommended heating temperature is 160-180℃; the preferred point connecting needle shape is a cone.
The mask making device according to any one of claims 1 to 3, comprising a lower guide wheel, a nose strip wheel, a three-folding device, a peripheral sealing device and a mask fixing belt fixing device. The lower guide wheel is used for the composite meltblown non-woven fabric and The inner non-woven fabric, the nose strip wheel is used to evenly prevent the nose strip from being on the composite meltblown non-woven fabric and the inner non-woven fabric. The three-folding device folds the body of the nose strip mask covered by the non-woven fabric into three folds. The mask body, the peripheral sealing device is used to seal the three-folded mask body around to become a peripheral sealing mask body, which is characterized in that it also includes upper guide wheels, all upper guide wheels are used for composite elastic cloth and spunlace cloth to obtain a flat fixing belt It also includes a stacking and stacking device for stacking flat fixing belts to obtain a stacking fixing belt; it also includes a point connection device for penetrating the stacked fixing belt so that the fixed belt will not fall apart; it also includes a fixing belt slitting device, It is used for slitting the fixing belt so as to be fixedly connected to the mask body; preferably, the laminated layer is the laminated and laminated device according to claim 6, and the point-connecting device is preferably the point-bonding device according to claim 7.
The device of claim 6, wherein the peripheral sealing device includes a peripheral sealing upper wheel and a peripheral sealing lower wheel; preferably, the manufacturing device further includes a peripheral sealing heating device, and the peripheral sealing heating device includes an upper peripheral sealing heating element The heating element is sealed in the next week, and the heating element is installed on the upper wheel of the circumferential seal in the last week.
The device according to claim 7, characterized in that: it is preferable that the heating element on the upper and the lower circumference are electric heating rods, and the heating temperature is 150-190°C, preferably 160-180°C.