CN212233245U - Mask and mask manufacturing mold - Google Patents

Abstract

The utility model provides a gauze mask and gauze mask manufacturing mould relates to health supplies technical field. The mask comprises a mask body, a sealing edge and a pair of ear belts; the sealing edges are arranged at the edge of the cover body around the circumferential direction of the cover body, the paired ear belts are arranged in a mirror image mode by taking the center line of the cover body, and the sealing edges and the ear belts are integrally molded by injection; the mask manufacturing mold is used for manufacturing the mask and comprises a fixed mold and a movable mold; the movable die can be matched with the fixed die to clamp the cover body; the movable mould is provided with a pouring runner, one of the fixed mould and the movable mould is provided with a first cavity, the other one of the fixed mould and the movable mould is provided with a second cavity, and after the fixed mould and the movable mould are closed, the first cavity and the second cavity form a molding cavity which is communicated with the pouring runner. The utility model provides a gauze mask and gauze mask manufacturing mould has alleviated the gauze mask that uses among the prior art and has leaded to lower with people's face laminating degree because of adopting high frequency welding to form banding and ear area, and leads to the technical problem of face's indentation easily.

Description

Mask and mask manufacturing mold

Technical Field

The utility model relates to a health supplies technical field especially relates to a gauze mask and gauze mask manufacturing mould.

Background

The model N95 mask is one of 9 particle protective masks certified by NIOSH (national institute for economic Safety and Health, national institute of Occupational Safety and Health), and indicates that the filtering efficiency of a mask filter material on non-oily particles (such as dust, acid mist, paint mist, microorganisms and the like) reaches 95% under the detection conditions specified by the NIOSH standard. In the traditional manufacturing process, non-woven fabrics and melt-blown fabrics are generally combined and cut, and then the V-shaped mask is formed through high-frequency welding edge sealing and high-frequency welding ear bands. However, the mask formed in this way has low fit with the face, and particularly, when high-frequency welding is performed, the problem of stress concentration may exist, so that a gap exists between the sealing edge and the face, and viruses and the like are easy to invade. Moreover, the face of the wearer is easily scratched after wearing for a long time, which causes discomfort to the face of the wearer and even breaks the face.

In view of the above, there is a strong need for a mask and a mask manufacturing mold that can solve the above problems.

The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.

SUMMERY OF THE UTILITY MODEL

A first object of the utility model is to provide a gauze mask to alleviate the gauze mask that uses among the prior art and lead to lower with people's face laminating degree because of adopting high frequency welding to form banding and ear area, and lead to the technical problem of facial indentation easily.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a mask, which comprises a mask body, a sealing edge and paired ear belts;

the banding around the circumference of the cover body set up in the edge of the cover body, in pairs the ear area with the central line of the cover body is the mirror image setting, the banding with the integrative injection moulding in ear area.

In any of the above solutions, further, the sealing edge and/or the ear band is made of a thermoplastic elastomer.

In any of the above technical solutions, further, the cover body includes a surface layer, an inner layer, and an interlayer located between the surface layer and the inner layer, and the edge of the surface layer, the edge of the inner layer, and the edge of the interlayer are fixed by pressure welding.

In any of the above technical solutions, further, the cover body is arranged in a V shape.

A second object of the present invention is to provide a mold for manufacturing a mask, so as to alleviate at least one of the above technical problems.

The utility model also provides a mask manufacturing mould, which is used for manufacturing the mask and comprises a fixed die and a movable die;

the movable die can be matched with the fixed die to clamp the cover body; the movable mould is provided with the pouring runner, the cover half with one of the movable mould is provided with first die cavity, and the other is provided with the second die cavity, after the cover half with the movable mould compound die, first die cavity with the second die cavity forms the shaping chamber, the shaping chamber with the pouring runner intercommunication.

In any of the above technical solutions, further, one of the fixed mold and the movable mold is provided with a protruding mold, and the other is provided with a recessed mold, and the protruding mold and the recessed mold can cooperate to clamp the cover body;

the first cavity is arranged at the edge of the convex die, and the second cavity is arranged at the edge of the concave die; or, the first cavity is arranged at the edge of the sunken die, and the second cavity is arranged at the edge of the raised die.

In any of the above technical solutions, further, the protruding die has a first pressing surface, the recessed die has a second pressing surface, the first pressing surface and the second pressing surface can clamp the cover body, and the first pressing surface and/or the second pressing surface are/is adapted to the face structure.

In any of the above technical solutions, further, the first cavity includes a first edge sealing cavity and a first ear band cavity, and the first edge sealing cavity is communicated with the first ear band cavity;

the second cavity comprises a second edge sealing cavity and a second ear belt cavity, and the second edge sealing cavity is communicated with the second ear belt cavity.

In any one of the above technical solutions, further, one of the movable mold and the fixed mold is provided with a concave cavity, the other is provided with a convex block, the convex mold is disposed in the concave cavity, and the concave mold is disposed in the convex block.

In any of the above technical solutions, further, the number of the recessed cavities and the number of the protruding blocks are both multiple, and the protruding blocks correspond to the recessed cavities one to one; every sunken chamber all is provided with one protruding mould, every protruding piece all is provided with one sunken mould.

In any one of the above technical solutions, further, one of the movable mold and the fixed mold is provided with a positioning hole, and the other is provided with a positioning post, and when the movable mold and the fixed mold are closed, the positioning post can be inserted into the positioning hole.

The utility model has the advantages that:

the utility model provides a pair of mask, including the cover body, banding and mated ear area, the banding sets up in the edge of the cover body around the circumference of the cover body for compress tightly in the face of the person of wearing, and then ensure closely laminating between the cover body and the face, with reduce the clearance between the two, reduce the risk that outside virus got into the person of wearing mouth nose. The pairs of ear straps are arranged in mirror image relation to the midline of the mask body and are used to secure the mask body relative to the wearer, ensuring that the mask body does not easily detach from the wearer's face. Wherein, the banding is integrative injection moulding with the ear area, compares in prior art need high-frequency welding banding and ear area, and the banding and the ear area that injection moulding formed reduce stress concentration phenomenon and take place, and then make the probability that the cover body warp reduce, improve the laminating degree of the relative person's of wearing face of gauze mask. And because the sealed edge and the ear belt are formed by injection molding, the formed ear belt cannot deform due to the stress of high-frequency welding, the length of the ear belt can be kept within a set size range, the tightening marks on the face of a wearer are reduced, and the wearing comfort is improved.

The utility model provides a pair of mould is made to gauze mask for make foretell gauze mask, including cover half and movable mould, the movable mould is provided with the pouring runner, is used for the injection moulding material to pour into. One of the movable mold and the fixed mold is provided with a first cavity, the other one of the movable mold and the fixed mold is provided with a second cavity, and the cover body is placed between the movable mold and the fixed mold. After the movable mold and the fixed mold are assembled, the cover body is pressed between the movable mold and the fixed mold, the first mold cavity and the second mold cavity jointly form a molding cavity for injection molding of the sealing edge and the ear band, and the molding cavity is communicated with the pouring runner so that an injection molding material can flow into the molding cavity along the pouring runner. Directly form banding and ear area on the cover body through injection moulding's mode, improve the gauze mask for the laminating degree of wearer face, can realize above-mentioned at least one technological effect.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of a mask according to an embodiment of the present invention;

fig. 2 is a schematic view of a fixed mold in a mask manufacturing mold according to an embodiment of the present invention;

fig. 3 is a schematic view of a movable mold in a mask manufacturing mold according to an embodiment of the present invention;

fig. 4 is a partial schematic view of the opening of the movable mold and the fixed mold in the mask manufacturing mold according to the embodiment of the present invention;

fig. 5 is a partial cross-sectional view of the mask manufacturing mold according to the embodiment of the present invention, which is taken along the vertical direction after the movable mold and the fixed mold are assembled;

fig. 6 is a partially enlarged view of a portion a in fig. 5.

Icon: 11-a cover body; 12-edge sealing; 13-ear band; 21-moving a mould; 22-fixing the mold; 31-a first cavity; 32-a second cavity; 41-convex mould; 42-sink mode; 43-a containment chamber; 51-a recessed cavity; 52-raised blocks; 61-positioning holes; 62-a positioning column; 71-edge sealing of the cavity; 72-ear band cavity; 81-screw; 311-a first edge sealing cavity; 312-a first earband lumen; 321-a second edge sealing cavity; 322-a second earband lumen; 411-a first compression surface; 421-a second compression surface; 422-raised line die orifice; 511-closing the dies.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Examples

As shown in fig. 1, the mask provided in this embodiment includes a mask body 11, a seal 12, and a pair of ear bands 13; the banding 12 sets up in the edge of the cover body 11 around the circumference of the cover body 11, and paired earlap 13 is the mirror image setting with the central line of the cover body 11, banding 12 and the integrative injection moulding of earlap 13.

Specifically, the mask body 11 is used for covering the face of the wearer to protect the nose and mouth of the wearer and prevent germs from entering the nose and mouth of the wearer as much as possible. The banding 12 sets up around the circumference of the cover body 11, and the cladding is in the edge of the cover body 11, and when the cover body 11 covers the face of establishing at the wearer, the banding 12 can compress tightly at the face of wearer to ensure closely laminating between the cover body 11 and the face, in order to reduce the clearance between the two, and then reduce the risk that outside virus got into the wearer's mouth and nose. The quantity of ear strap 13 is two, and two ear straps 13 are the mirror image setting with the central line of the cover body 11, and set up respectively in the both sides that the cover body 11 is close to the wearer's ear, and ear strap 13 is used for hanging on the ear of wearer, and then fixes the relative face of the cover body 11, realizes the operation of wearing of this gauze mask. The edge sealing 12 and the ear band 13 are integrally formed by injection molding, that is, the cover body 11 is placed in an injection mold, and then the edge sealing 12 and the ear band 13 are formed on the cover body 11 by injection molding, so that the edge sealing 12 and the ear band 13 are integrally formed and are all solidified on the cover body 11.

However, in the prior art, the sealing edge 12 and the ear band 13 need to be fixed on the cover body 11 by high-frequency welding, and when high-frequency welding is performed, welding stress is generated, so that stress concentration between the sealing edge 12 and the cover body 11 and between the ear band 13 and the cover body 11 is caused, and the cover body 11, the sealing edge 12 and the ear band 13 are easily deformed, so that the degree of fitting with a human face is reduced. In this embodiment, the sealing edge 12 and the ear band 13 are formed on the cover 11 by injection molding, so that no welding stress is generated, and the occurrence of stress concentration between the sealing edge 12 and the cover 11 and between the ear band 13 and the cover 11 is effectively reduced, thereby reducing the deformation rate of the cover 11, the sealing edge 12 and the ear band 13, and improving the fitting degree of the cover 11 relative to the face of the wearer. Meanwhile, the ear belt 13 is not easy to deform, the length of the ear belt 13 can be kept within the set size range, the tightening marks of the ear belt 13 on the face of a wearer are effectively reduced, and the wearing comfort and the experience are improved.

Wherein, the ear belt 13 adopts a structure of a suspension ear type. The ear belt 13 and the edge sealing 12 can be formed by injection molding of the same material or different materials; the ear band 13 and the seal 12 may be formed by injection molding at one time or by injection molding at two times, as long as the seal 12 and the ear band 13 can be injection molded on the cover body 11.

Preferably, the sealing edge 12 and the ear band 13 are made of a thermoplastic elastomer. The thermoplastic elastomer is used as an environment-friendly material with a worldwide standard shape, has the characteristics of elasticity of rubber at normal temperature and plastic molding at high temperature, combines the dual properties of rubber and plastic, has various characteristics of high elasticity, aging resistance, oil resistance and the like, is convenient to process, and effectively reduces the cost for manufacturing the mask. And the thermoplastic elastomer is environment-friendly and nontoxic, is close to the skin of a human body, and improves the wearing comfort. In addition, the thermoplastic elastomer is quickly cured and shaped, so that the production efficiency is improved, and the production capacity is increased.

As shown in fig. 1, in actual use, the cover 11 is provided in a V-shape. The mask is more convenient to cover the face of a wearer, the included angle of the V shape can protrude out of the face of the wearer, and the wearer is provided with enough breathing space, namely the mask body 11 cannot be directly pressed at the mouth and nose of the wearer, so that the wearing comfort is improved. Simultaneously, the setting of "V" font still is convenient for fold with the central line of "V" font to conveniently accomodate.

In some embodiments, the shell 11 includes a facing layer, an inner layer, and an interlayer between the facing layer and the inner layer, and the edges of the facing layer, the edges of the inner layer, and the edges of the interlayer are bonded. Wherein, surface course and inlayer all adopt the non-woven fabrics to make, and the intermediate layer adopts melt-blown fabric to make, is located inlayer and surface course between, and then improves the protectiveness. The number of the interlayers may be one or two, and it is only necessary to ensure that the formed cover 11 has good protection performance. During actual manufacturing, the surface layer, the interlayer and the inner layer are sequentially stacked and rolled by a machine to enter a high-frequency blank holder for welding, so that the surface layer, the interlayer and the inner layer are ensured to form a whole; then, cutting off redundant materials through a plane cutting process; finally, the cover body 11 is formed into a V shape through three-dimensional sealing.

In the gauze mask that this embodiment provided, banding 12 and ear strap 13 set firmly on cover body 11 through injection moulding's mode, so when moulding plastics, can more laminate the face structure to injection mold's setting, for example according to shapes such as bridge of the nose, face, bridge of the nose and facial contained angle and chin, and then ensure that the gauze mask after the shaping can more laminate the face structure, improve the leakproofness of banding 12 and face. After the sealing edge 12 is completely attached to the face structure, a metal strip is not required to be additionally arranged on the cover body 11, and the cover body 11 and the face are clamped tightly by the hardness of the metal strip. However, since a high-frequency welding method is required when the metal strip is additionally provided, the formed cover body 11 is easily deformed. The mask in this embodiment does not need to be provided with a metal strip, and the deformation rate of the mask body 11 is further reduced.

As shown in fig. 2-4, the present embodiment further provides a mask manufacturing mold for manufacturing the mask, which comprises a fixed mold 22 and a movable mold 21; the movable die 21 can be matched with the fixed die 22 to clamp the cover body 11; the movable die 21 is provided with a pouring runner, the fixed die 22 is provided with a first die cavity 31, the movable die 21 is provided with a second die cavity 32, and after the fixed die 22 and the movable die 21 are closed, the first die cavity 31 and the second die cavity 32 form a molding cavity which is communicated with the pouring runner.

The movable mold 21 may be provided with a first cavity 31, the fixed mold 22 may be provided with a second cavity 32, and the first cavity 31 and the second cavity 32 may form a molding cavity together after the movable mold 21 and the fixed mold 22 are assembled, so as to facilitate injection molding of the sealing edge 12 and the ear band 13 on the cover 11.

During the in-service use, install movable mould 21 on the injection flitch of injection aircraft nose, install the cover half 22 on the carousel platform, then place fashioned cover body 11 on cover half 22, drive cover half 22 through the carousel and get into the injection aircraft nose, the injection aircraft nose flitch drives movable mould 21 and moves down to carry out the compound die with cover half 22. After the movable die 21 moves to be completely matched with the fixed die 22, the cover body 11 is clamped between the movable die 21 and the fixed die 22, and the injection material plate can inject the injection material into the molding cavity through the pouring runner, so that the injection material can form the sealing edge 12 and the ear band 13 with fixed shapes in the molding cavity. After the injection molding material is solidified, the movable mold 21 is moved to perform mold opening operation of the movable mold 21 and the fixed mold 22, so as to take out the molded mask.

With continued reference to fig. 2-4, preferably, the fixed mold 22 is provided with a convex mold 41, the movable mold 21 is provided with a concave mold 42, and the convex mold 41 can cooperate with the concave mold 42 to clamp the cover 11; the first cavity 31 is provided at the edge of the convex mold 41, and the second cavity 32 is provided at the edge of the concave mold 42.

Specifically, the projecting die 41 and the recessed die 42 can be fitted to each other, that is, the projecting die 41 can be fitted into the recessed die 42 when the movable die 21 and the fixed die 22 are clamped. As shown in fig. 4, the fixed die 22 and the movable die 21 are placed in a manner of example, the cross section of the convex die 41 in the vertical direction and the cross section of the concave die 42 in the vertical direction are both provided in a V shape. The provision of the bulging die 41 facilitates the placement of the cover body 11, i.e., the cover body 11 can be placed over the bulging die 41 with a "V" shaped opening. After the movable mold 21 and the fixed mold 22 are clamped, the cover body 11 can be clamped between the convex mold 41 and the concave mold 42, and the cover body 11 is ensured not to be deviated when the edge sealing 12 and the ear belt 13 are subjected to injection molding.

Wherein, the first cavity 31 is arranged at the opening edge of the V-shaped protruding die 41, and the second cavity 32 is arranged at the opening edge of the V-shaped recessed die 42. When the cover 11 is clamped between the raised die 41 and the recessed die 42, the edge of the cover 11 can be inserted into the molding cavity formed by the first cavity 31 and the second cavity 32 to facilitate injection molding of the hem seal 12 and the ear band 13 on the cover 11.

It should be added that the fixed mold 22 may be provided with a concave mold 42, the movable mold 21 may be provided with a convex mold 41, the first cavity 31 may be provided at the edge of the concave mold 42, and the second cavity 32 may be provided at the edge of the convex mold 41, as long as it can clamp the cover 11, so as to injection mold the sealing edge 12 and the ear band 13 on the cover 11.

With reference to fig. 2 to fig. 4, in practical use, the convex mold 41 has a first pressing surface 411, the concave mold 42 has a second pressing surface 421, the first pressing surface 411 and the second pressing surface 421 can clamp the cover 11, and the first pressing surface 411 and the second pressing surface 421 are adapted to the structure of the human face.

Specifically, the side where the convex die 41 contacts the cover body 11 is the first pressing surface 411, the side where the concave die 42 contacts the cover body 11 is the second pressing surface 421, and the first pressing surface 411 and the second pressing surface 421 act on the cover body 11 together to clamp the cover body 11. Wherein, the shape of first face 411 and the shape of second face 421 of compressing tightly all suit with the face structure, and then in the centre gripping cover body 11, can make the cover body 11 produce the micro deformation that tends to the face structure, cooperation injection moulding's banding 12 this moment, and then improve the laminating degree of fashioned gauze mask for the wearer face.

Wherein, also can be, only first compress tightly face 411 and human face structure and suit, perhaps only second compress tightly face 421 and human face structure and suit, it as long as can ensure fashioned gauze mask can with the inseparable laminating of wearer's face under the clamping action of no metal strip, improve the laminating degree can.

With continued reference to fig. 2-6, in actual use, the first cavity 31 includes a first sealing cavity 311 and a first ear band cavity 312, and the first sealing cavity 311 is communicated with the first ear band cavity 312; the second cavity 32 includes a second edge sealing cavity 321 and a second ear belt cavity 322, and the second edge sealing cavity 321 and the second ear belt cavity 322 are communicated.

In this case, the first cavity 31 is disposed at the edge of the convex mold 41, and the second cavity 32 is disposed at the edge of the concave mold 42. First banding chamber 311 sets up around the circumference of protruding mould 41, and second banding chamber 321 sets up around the circumference of sunken mould 42, and first banding chamber 311 and second banding chamber 321 all suit with the face structure to in injection moulding's banding 12 can with the better laminating of face. The number of the first earring cavities 312 is two, the two first earring cavities 312 are arranged on two sides of the first edge sealing cavity 311 in a mirror image mode by using the central line of the convex die 41, and the two first earring cavities 312 are both communicated with the first edge sealing cavity 311; the quantity of second earring chamber 322 is two, and two second earring chambers 322 are the mirror image setting in the both sides of second banding chamber 321 with the central line of sunken mould 42, and two second earring chambers 322 all communicate with second banding chamber 321, and then injection moulding banding 12 and earring 13 simultaneously. The first sealing edge cavity 311 and the second sealing edge cavity 321 jointly form a sealing edge cavity 71 for injection molding of the sealing edge 12, the first ear belt cavity 312 and the second ear belt cavity 322 jointly form an ear belt cavity 72 for injection molding of the ear belt 13, and the sealing edge cavity 71 is communicated with the ear belt cavity 72.

The pouring runner comprises a main runner and a branch runner, one end of the branch runner is communicated with the main runner, the other end of the branch runner is communicated with the forming cavity, and the forming cavity comprises an edge sealing cavity 71 and an ear band cavity 72.

With continued reference to fig. 2-6, in the present embodiment, the fixed mold 22 is provided with a concave cavity 51, the movable mold 21 is provided with a convex block 52, the convex mold 41 is provided in the concave cavity 51, and the concave mold 42 is provided in the convex block 52. The arrangement of the concave cavities 51 provides a certain convex space for the convex molds 41, and the arrangement of the concave cavities 51 provides a certain concave space for the concave molds 42. When the male mold 41 is mated with the female mold 42, the female cavity 51 is mated with the male block 52.

Wherein, be provided with sand grip die orifice 422 at the edge of sunken mould 42, and sand grip die orifice 422 sets up along sunken mould 42's circumference, and sand grip die orifice 422 protrusion is in the second pressure surface 421 that is located sunken mould 42. In practical use, after the cover body 11 is buckled on the raised die 41, the movable die 21 and the fixed die 22 are clamped, at this time, the raised die orifice 422 on the recessed die 42 can be pressed against the edge of the cover body 11, the raised die orifice 422 is arranged to form an accommodating cavity 43 between the recessed die 42 and the raised die 41, the cover body 11 is accommodated in the accommodating cavity 43, the pressing force acting on the cover body 11 after the movable die 21 and the fixed die 22 are clamped is effectively reduced, and the protection of the cover body 11 is improved. Meanwhile, the raised strip die orifice 422 is tightly pressed at the edge of the cover body 11, so that complete sealing between the first cavity 31 and the second cavity 32 is ensured, and the risk of outflow of injection molding materials is reduced. The width of the raised line die 422 is not too wide nor too narrow, and may be between 3-5 mm, preferably 4mm, and of course may be 3mm or 5 mm.

Wherein, the concave cavity 51 is provided with a groove, the convex block 52 is provided with a convex block corresponding to the groove, when the movable die 21 and the fixed die 22 are matched, the convex block can be embedded into the groove to form a die matching die orifice 511, and the first die cavity 31 and the second die cavity 32 can be combined in a sealing way. The width of the clamp die 511 is between 8-10 mm, preferably 9mm, but may be 8mm or 10 mm.

Wherein the male mold 41 is fixed to the female cavity 51 by a screw 81.

It should be added that the concave cavity 51 may be provided on the movable mold 21 and the convex block 52 may be provided on the fixed mold 22, as long as the movable mold 21 and the fixed mold 22 can be clamped together to facilitate injection molding of the sealing edge 12 and the ear band 13.

With continued reference to fig. 2-4, preferably, the number of the concave cavities 51 and the number of the convex blocks 52 are both plural, and the convex blocks 52 correspond to the concave cavities 51 one by one; each of the concave cavities 51 is provided with one convex die 41 and each of the convex blocks 52 is provided with one concave die 42.

In this embodiment, the number of the concave cavities 51 is two, and each concave cavity 51 is provided with one convex die 41 therein to facilitate the placement of the cover 11. The number of the convex pieces 52 is two, one to one corresponding to the concave cavities 51, and each convex piece 52 is provided with one concave die 42. Such setting is convenient for can two gauze masks of shaping at the in-process of once moulding plastics, improves production efficiency. Of course, the number of the concave cavities 51 may also be three or four, which is determined mainly by the structure of the machine.

With continued reference to fig. 2-4, preferably, the fixed mold 22 is provided with positioning holes 61, the movable mold 21 is provided with positioning posts 62, and the positioning posts 62 can be inserted into the positioning holes 61 when the movable mold 21 and the fixed mold 22 are closed. The positioning columns 62 and the positioning holes 61 are arranged to improve the accuracy of the mold clamping of the fixed mold 22 and the movable mold 21.

It should be noted that the fixed mold 22 may be provided with positioning posts 62, and the movable mold 21 may be provided with positioning holes 61, as long as positioning and clamping of the movable mold 21 and the fixed mold 22 can be achieved.

When in actual use, the surface layer, the interlayer and the inner layer are sequentially stacked and enter a high-frequency blank holder for welding through rolling of a machine, so that the surface layer, the interlayer and the inner layer are ensured to form a whole; then, cutting off redundant materials through a plane cutting process; finally, the cover body 11 is formed into a V shape through three-dimensional sealing. Then, the movable mold 21 is mounted on an injection material plate of the injection machine head, the fixed mold 22 is mounted on a turntable table, then the molded cover body 11 is placed on the fixed mold 22, the fixed mold 22 is driven by the turntable to enter the injection machine head, and the injection machine head material plate drives the movable mold 21 to move downwards so as to be matched with the fixed mold 22. After the movable die 21 moves to be completely matched with the fixed die 22, the cover body 11 is clamped between the movable die 21 and the fixed die 22, and the injection material plate can inject the injection material into the molding cavity through the pouring runner, so that the injection material can form the sealing edge 12 and the ear band 13 with fixed shapes in the molding cavity. After the injection molding material is solidified, the movable mold 21 is moved to perform mold opening operation of the movable mold 21 and the fixed mold 22, so as to take out the molded mask.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention.

Claims (11)

1. A mask is characterized by comprising a mask body (11), a seal edge (12) and a pair of ear belts (13);

banding (12) wind the circumference of the cover body (11) set up in the edge of the cover body (11), it is mated ear area (13) with the central line of the cover body (11) is the mirror image setting, banding (12) with ear area (13) integrative injection moulding.

2. Mask according to claim 1, characterized in that said seal (12) and/or said ear band (13) are made of thermoplastic elastomer.

3. Mask according to claim 1, characterized in that the mask body (11) comprises a face layer, an inner layer and an interlayer between the face layer and the inner layer, and the edge of the face layer, the edge of the inner layer and the edge of the interlayer are fixed by pressure welding.

4. Mask according to any one of claims 1 to 3, characterized in that said mask body (11) is arranged in a "V" shape.

5. A mask manufacturing mold, characterized by comprising a fixed mold (22) and a movable mold (21);

the movable die (21) can be matched with the fixed die (22) to clamp the cover body (11); the movable mould (21) is provided with a pouring runner, one of the fixed mould (22) and the movable mould (21) is provided with a first cavity (31), the other one is provided with a second cavity (32), after the fixed mould (22) and the movable mould (21) are assembled, the first cavity (31) and the second cavity (32) form a molding cavity, and the molding cavity is communicated with the pouring runner.

6. Mask making mold according to claim 5, characterized in that one of said fixed mold (22) and said movable mold (21) is provided with a raised mold (41) and the other with a recessed mold (42), said raised mold (41) being able to clamp said mask body (11) in cooperation with said recessed mold (42);

the first cavity (31) is arranged at the edge of the convex mould (41), and the second cavity (32) is arranged at the edge of the concave mould (42); or, the first cavity (31) is arranged at the edge of the sunken die (42), and the second cavity (32) is arranged at the edge of the raised die (41).

7. Mask making mould according to claim 6, characterized in that said raised mould (41) has a first pressing surface (411) and said recessed mould (42) has a second pressing surface (421), said first pressing surface (411) being able to grip said mask (11) with said second pressing surface (421), and said first pressing surface (411) and/or said second pressing surface (421) being adapted to the structure of the human face.

8. Mask making mold according to claim 6, characterized in that one of the movable mold (21) and the fixed mold (22) is provided with a concave cavity (51) and the other is provided with a convex block (52), the convex mold (41) is provided in the concave cavity (51), and the concave mold (42) is provided in the convex block (52).

9. The mask manufacturing mold according to claim 8, wherein the number of the concave cavities (51) and the number of the convex blocks (52) are plural, and the convex blocks (52) correspond to the concave cavities (51) one by one; each concave cavity (51) is provided with one convex die (41), and each convex block (52) is provided with one concave die (42).

10. Mask making mold according to any one of claims 5 to 9, characterized in that said first cavity (31) comprises a first cuff cavity (311) and a first ear band cavity (312), and said first cuff cavity (311) and said first ear band cavity (312) are in communication;

the second cavity (32) comprises a second edge sealing cavity (321) and a second ear belt cavity (322), and the second edge sealing cavity (321) is communicated with the second ear belt cavity (322).

11. The mask manufacturing mold according to any one of claims 5 to 9, wherein one of the movable mold (21) and the fixed mold (22) is provided with a positioning hole (61) and the other is provided with a positioning post (62), and when the movable mold (21) and the fixed mold (22) are clamped, the positioning post (62) can be inserted into the positioning hole (61).

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