KR102438326B1 - Apparatus for manufacturing mask - Google Patents

Abstract

The present invention is a mask manufacturing apparatus for manufacturing a mask by attaching at least one earring band to the mask body, comprising an earring band attachment device for fusing the earring band to one edge of the mask body through ultrasonic vibration, The device for attaching the earring band includes a roller disposed on an outer circumferential surface and having a holding means for holding the earring band, and the earring band held by the holding means to one edge of the mask body by ultrasonic vibration welding. There is provided an apparatus for manufacturing a mask comprising an apparatus.

Description

Mask manufacturing apparatus {APPARATUS FOR MANUFACTURING MASK}

The present invention relates to a mask manufacturing apparatus, and more particularly, to a mask manufacturing apparatus for attaching a pair of earring bands coupled to both ends to a mask body that blocks the front of the wearer's respiratory tract.

A mask is an object that covers the respiratory system to prevent inhalation or scattering of germs or dust through the mouth and nose respiratory tract for health and hygiene reasons. It is used to prevent inhalation, or worn as a substitute for a kind of cold protection when caught in a cold in winter when the temperature is low, and is also used to protect the wearer from yellow dust generated in spring.

In particular, it is recommended to wear a mask to prevent infections such as seasonal flu, avian flu, swine flu, MERS, SARS, and Corona, which are acute respiratory diseases that have become a social problem in recent years.

The mask may be manufactured in various forms depending on the purpose or purpose of use. In general, a mask 1 using a fiber filter, as shown in FIG. 1, includes a mask body 10 covering the wearer's nose or mouth and , may include a pair of earring bands 11 and 12 coupled to both ends of the mask body 10 to support the mask body 10 .

A device for manufacturing a mask body is disclosed in Korean Patent Registration No. 10-0783311, etc., and a device for coupling an earring band to the mask body is disclosed in Korean Patent Registration Nos. 10-1131866 and 10-2072927 are doing

Specifically, the mask body 10 is manufactured by laminating several sheets of fabric paper having a filter function into one sheet of filter paper, and the earring bands 11 and 12 are wound in a roll shape by cutting them to a predetermined length and cutting the earring. Each distal end of the bands 11 and 12 is attached to the left and/or right edges of the mask body 10 to be manufactured.

However, according to the conventional mask manufacturing apparatus, when coupling the earring bands 11 and 12 to any one edge of the mask body 10, the extraction process when cutting out and cutting a part of the earring bands 11 and 12 wound in a roll shape It takes a lot of time, and when attaching the cut earring bands 11 and 12 to the mask body 10, since the ultrasonic welding device including the horn follows the mask body during transport by the air cylinder, production There is a problem in that the speed is lowered or a large noise is generated.

Accordingly, it is intended to present a technique for a mask manufacturing apparatus for solving such a problem.

US 10-1131866 B1 US 10-2072927 B1

An object of the present invention is to provide a mask manufacturing apparatus capable of improving a mask manufacturing speed compared to a conventional mask manufacturing apparatus and reducing noise generated during mask manufacturing.

In order to solve the above problems, the present invention is a mask manufacturing apparatus for manufacturing a mask by attaching at least one earring band to the mask body, an earring for fusing the earring band to any one edge of the mask body through ultrasonic vibration A band attaching device, wherein the earring band attaching device includes a roller disposed on an outer circumferential surface and having a holding means for holding the earring band, and the earring band held by the holding means is applied to one edge of the mask body by ultrasonic waves. It provides a mask manufacturing apparatus comprising an ultrasonic welding device for welding by vibration.

According to an embodiment, it may further include a robot picker that picks up the earring band and brings it to the holding means.

According to an embodiment, the ultrasonic welding device includes a horn for fusing the mask body and the earring band held by the holding means using ultrasonic vibration, and the earring band held by the holding means includes: , by rotation of the roller, it can move to the joint surface of the horn.

According to an embodiment, the position of the horn may be fixed.

According to an embodiment, the horn may be positioned under the roller in a direction parallel to the longitudinal direction of the roller.

According to an embodiment, the holding means may be provided in pairs on each of the left and right sides of the roller, and all of the pair of earring bands may be fused to both edges of the mask body by one rotation of the roller.

According to an embodiment, the holding means may be at least one pin for stably fixing the earring band in the form of a thread.

According to an embodiment, the holding means may be Velcro or a corrosive surface for attaching the earring band.

According to an embodiment, the holding means may be tongs for holding the earring band.

According to an embodiment, the holding means is formed to protrude around the pin, around the Velcro, around the erosion surface, or around the tongs among the outer peripheral surfaces of the roller, and fusion by ultrasonic vibration between the mask body and the earring band It may include a first fusion protrusion forming a site.

According to an embodiment, the roller may include a second fusion protrusion for forming a fusion site by ultrasonic vibration along the circumferential direction on the outer circumferential surface for laminating a plurality of original papers.

According to an embodiment, the mask manufacturing apparatus includes a fabric supply device for supplying at least one pre-prepared original paper, a laminating device for laminating the at least one original paper supplied by the fabric supply device, and the laminating device It may further include a mask cutting device for cutting in the form of a mask body from a sheet of filter paper molded by.

In addition, the present invention provides an ultrasonic welding apparatus including a horn for fusing first and second fusion objects using ultrasonic vibrations, wherein the first and second fusion objects to be fused are between the roller and the horn. The horn is introduced into the gap formed in the fusion to be mutually fused, and the horn, the joint surface facing the roller is curved to correspond to the shape of the outer circumferential surface of the roller, and the longitudinal cross-section of the horn viewed from the side of the roller may be asymmetrical.

In the mask manufacturing apparatus according to an embodiment of the present invention, the roller holding the earring band rotates, so that the earring band, which is one of the fusion objects, moves to the horn of the ultrasonic welding device, and the fixed position of the horn is the mask which is the fusion object. Since the body and the earring band are fused to each other, there is an effect that can remove the noise generated by the use of the conventional air cylinder.

In addition, since the mask manufacturing apparatus according to an embodiment of the present invention can simplify the process of attaching the earring band to the mask body, the time required for attaching the earring band to the mask body is small, thereby improving the mask manufacturing speed. there is an effect

1 is a view showing the appearance of a mask according to an embodiment of the present invention.
2 is a view showing the overall appearance of the mask manufacturing apparatus according to an embodiment of the present invention.
3 is a view showing a device for attaching an earring band according to an embodiment of the present invention.
4 is a view showing a roller and an ultrasonic welding device of the ear band attachment device according to an embodiment of the present invention.
FIG. 5 is a view showing a side view of the roller and the ultrasonic welding device of FIG. 4 .
6 is a view showing the appearance of a roller according to an embodiment of the present invention.
7 is a view showing a holding means of a roller according to an embodiment of the present invention.
8 is a view showing a state in which an earring band is attached to the holding means according to an embodiment of the present invention.
9 is a view showing a side view of a superwave welding apparatus according to another embodiment of the present invention.

Hereinafter, the embodiments disclosed in the present specification will be described in detail with reference to the accompanying drawings, but the same or similar components are assigned the same reference numerals regardless of reference numerals, and redundant description thereof will be omitted. The suffixes "module" and "part" for the components used in the following description are given or mixed in consideration of only the ease of writing the specification, and do not have distinct meanings or roles by themselves. In addition, in describing the embodiments disclosed in the present specification, if it is determined that detailed descriptions of related known technologies may obscure the gist of the embodiments disclosed in this specification, the detailed description thereof will be omitted. In addition, the accompanying drawings are only for easy understanding of the embodiments disclosed in this specification, and the technical idea disclosed herein is not limited by the accompanying drawings, and all changes included in the spirit and scope of the present invention , should be understood to include equivalents or substitutes.

When a component is referred to as being “connected” or “connected” to another component, it may be directly connected or connected to the other component, but it is understood that other components may exist in between. it should be On the other hand, when it is said that a certain element is "directly connected" or "directly connected" to another element, it should be understood that the other element does not exist in the middle.

The singular expression includes the plural expression unless the context clearly dictates otherwise.

In the present specification, terms such as "comprises" or "have" are intended to designate that the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification exist, but one or more other features It is to be understood that this does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

2 is a view showing the overall appearance of the mask manufacturing apparatus according to an embodiment of the present invention.

As shown in FIG. 2 , the mask manufacturing apparatus 100 according to an embodiment of the present invention includes a fabric supply device 110 for supplying at least one pre-prepared fabric sheet, and the fabric supply device 110 . A laminating device 120 for laminating the at least one original paper supplied by the laminating device 110, and a mask cutting device for cutting in the form of a mask body 10 from a sheet of filter paper molded by the laminating device 110 ( 140) and an earring band attaching device 130 for fusing the earring bands 11 and 12 to either edge of the mask body 10 through ultrasonic vibration, wherein the earring band attaching device 130 is on the outer circumferential surface. A roller 1330 having a holding means for holding the earring bands 11 and 12, and the earring bands 11 and 12 held by the holding means are placed on one edge of the mask body 10 by ultrasonic vibration. It may include an ultrasonic welding device 1320 for welding.

The mask manufacturing apparatus 100 according to an embodiment of the present invention attaches the earring bands 11 and 12 held on the outer surface using the roller 1330 to the earring band attachment device 130, specifically the horn 1321. Since the mask body 10 and the earring bands 11 and 12 are fused by moving to the bonding surface of Also, unlike the conventional mask manufacturing apparatus, since the configuration or process for attaching the earring bands 11 and 12 to the mask body 10 is simplified, the earring bands 11 and 12 are attached to the mask body 10. It has the effect of reducing the time required for attaching the mask and improving the mask manufacturing speed.

However, since the components shown in FIG. 2 are not essential, it goes without saying that a mask manufacturing apparatus having more or fewer components may be implemented.

Hereinafter, each component will be described.

The fabric supply device 110 may provide and supply at least one mask fabric fabric provided in advance, preferably by winding.

At this time, the mask fabric may be a non-woven fabric or may be several sheets, and preferably, a sponge bond (polypropylene) is melted/extruded and spun into a thick and tough filament, and then heat-sealed to maximize strength and surface stability. One long fiber nonwoven fabric), melt brown (short fiber nonwoven fabric formed by cutting molten/extruded polypropylene into thin and soft microfibers and then heat-sealing), and thermal bond (low It may be a short fiber nonwoven fabric manufactured by mixing plastic synthetic fibers having a melting point and complexing them with heat, pressure, solvents, etc. or by melting them together).

The laminating device 120 laminates at least one original paper supplied by the fabric supply device 110 while the roller is rotated by a driving means such as a driving motor (not shown) to form a single piece of fabric (in this specification, a 'filter'). It will be collectively referred to as 'G').

At this time, the laminating device 120 may form a pattern when laminating several sheets of mask original paper. To this end, a pattern to be formed on the filter paper is embossed or engraved on the pattern forming roller (not shown), and ultrasonic waves are applied to the filter paper through the pattern forming roller so that the filter paper is heated and various fabric papers can be laminated.

On the other hand, the mask cutting device 140 can cut (cut) in the form of the mask body 10 from a sheet of filter paper molded by the laminating device (120).

The mask cutting device 140 may continuously receive a sheet of filter paper having a pattern formed therein, and cut it in the shape of the mask body 10 to finally manufacture the mask body 10 .

Between the mask cutting device 140 and the laminating device 120, the earring bands 11 and 12 are applied on the filter paper to at least one edge of the mask body 10 before cutting with ultrasonic waves (or ultrasonic vibrations). It can be used for fusion or adhesion.

3 is a view showing an earring band attachment device according to an embodiment of the present invention, FIG. 4 is a view showing a roller and an ultrasonic welding device of the earring band attachment device according to an embodiment of the present invention, and FIG. 4 is a view showing a side view of the roller and the ultrasonic welding device, FIG. 6 is a view showing the appearance of a roller according to an embodiment of the present invention, and FIG. 7 is a holding of the roller according to an embodiment of the present invention A drawing showing the means.

3 to 7, the earring band attachment device 130 is disposed on the outer circumferential surface and has holding means (1333a, 1333b, 1334a, 1334b) for holding the earring bands 11 and 12. A roller 1330 and , an ultrasonic welding device 1320 for fusing the earring bands 11 and 12 held by the holding means 1333a, 1333b, 1334a, 1334b to at least one edge of the mask body 10 with ultrasonic waves (or ultrasonic vibrations) ) may be included.

The roller 1330 may be installed by hanging on the roller hanger 1340 as shown in the drawing. The roller 1330 has a substantially cylindrical shape, and may have at least one holding means 1333a, 1333b, 1334a, 1334b for holding the earring bands 11 and 12 on the outer circumferential surface of the roller 1330.

The roller 1330 may rotate through the power transmission device 130 composed of at least one gear combination in which power generated by a driving means (not shown) such as a motor, etc., may be rotated by the holding means 1333a of the roller 1330 . , 1333b, 1334a, 1334b) held by the earring bands 11 and 12, between the roller 1330 and the horn 1321, specifically, the lamination device 120 is laminated by the laminating device 120 and seated on the transferred filter paper. can be supplied to

At this time, the earring bands 11 and 12 provided to the holding means 1333a, 1333b, 1334a, 1334b on the roller 1330 have a predetermined length in advance before being supplied to the holding means 1333a, 1333b, 1334a, 1334b. It may have a cut shape, or otherwise, an uncut thread-shaped earring band may be held by the holding means 1333a, 1333b, 1334a, 1334b and then cut by a cutting device (not shown).

The robot picker (not shown) picks up the earring bands 11 and 12 that have been cut or not in advance and supplies them to the holding means 1333a, 1333b, 1334a, 1334b of the roller 1330 to provide the earring bands 11 and 12. may be held by the holding means. The earring bands 11 and 12 held by the holding means 1333a, 1333b, 1334a, 1334b may be provided on the mask body 10 by rotation of the roller 1330, and the ultrasonic welding device 1320 is ultrasonically Both ends of the earring bands 11 and 12 may be attached to the mask body 10 by (or ultrasonic vibration).

Here, the robot picker may be a device for moving the earring bands 11 and 12 to a holding means by clamping the earring bands 11 and 12 with tongs or the like, and the present invention is not particularly limited thereto.

On the other hand, the holding means (1333a, 1333b, 1334a, 1334b) is for holding the earring bands 11 and 12 in the form of a thread having a length on the outer surface of the roller 1330, and holding the earring bands 11 and 12. If possible, the method or means are not particularly limited, but the holding means 1333a, 1333b, 1334a, 1334b according to an embodiment of the present invention are, as shown in FIGS. It may include at least one pin (1333a1) capable of stably fixing the earring bands (11, 12), and in contrast to this, which can be fixed by hooking the outer surfaces of the earring bands (11, 12) with a fine hook. It may include a velcro (velcro) 1334a1.

In addition, in order to hold the earring bands 11 and 12 on the outer surface of the roller 1330, the surface may be roughly corroded so that the outer surface of the earring bands 11 and 12 can be attached to the corroded surface (not shown). .

In addition, in order to hold the earring bands 11 and 12 on the outer surface of the roller 1330, there may be tongs (not shown) capable of holding the earring bands 11 and 12 and fixing them. At this time, the tongs may repeat the retracting or widening stroke according to the rotation of the roller 1330, and thus the earring bands 11 and 12 may be pinched or placed as needed, but is not necessarily limited thereto.

Of course, the pin (1333a1), the Velcro (1334a1), the corrosion surface, and any one selected from the tongs, or may be a combination thereof.

6 to 8, the holding means, in addition to the pin (1333a1), the Velcro (1334a1), the corroded surface or tongs to which the earring bands 11 and 12 are directly attached or fixed, there is a horn ( 1321 ) and may include at least one first fusion protrusion 1333a2 and 1334a2 protrudingly formed at a position facing each other.

The first fusion protrusions 1333a2 and 1334a2 correspond to the ultrasonic fusion site between the mask body 10 and the earring bands 11 and 12, and include at least one protrusion protruding from the outer circumferential surface of the roller 1330, By allowing the stress to be concentrated in the face of the ultrasonic waves (or ultrasonic vibrations) generated by the horn 1321 , the fused objects interposed between the first fusion protrusions 1333a2 and 1334a2 and the horn 1321 are fused to each other.

At this time, as described above, in order to lower the manufacturing defect rate without the earring bands 11 and 12 on the mask body 10 leaving the position, the first fusion protrusions 1333a2 and 1334a2 are pins 1333a1 or Velcro ( 1334a1) is preferably located on the periphery.

On the other hand, the holding means (1333a, 1333b, 1334a, 1334b), it is preferable to provide a pair at each end of both sides of the roller (1330) approximately the width of the mask body (10).

That is, a pair of holding means (1333a, 1334a) for attaching or fixing both ends of one earring band (11, 12) is provided at one end of the roller 1330, and another pair of holding means (1333b, 1334b) may be provided at the other end of the roller 1330 in order to attach or fix both ends of the other earring bands 11 and 12.

At this time, one end of the roller 1330, a pair of holding means provided on each, are positioned according to the ultrasonic welding site on the mask body 10, and may be arranged in parallel along one circumferential direction of the roller 1330. , as shown in FIGS. 6 and 7 , may not be disposed on one circumferential direction.

In this way, as a pair of holding means (1333a, 1333b, 1334a, 1334b) is provided at each of both ends of the roller 1330, the two earring bands 11 and 12 can be attached to both sides of the roller 1330 at the same time. And, since both earring bands 11 and 12 are attached to the mask body 10 only by one rotation of the roller 1330, the earring bands 11 and 12 are attached to the mask body 10 in one process. can be fused.

According to another embodiment of the present invention, as shown in FIG. 4 , the roller 1330 may include a plurality of second fusion protrusions 1331 and 1332 protruding in the circumferential direction.

The second fusion protrusions 1331 and 1332 are protruded from the outer circumferential surface of the roller 1330 like the first fusion protrusions 1333a2 and 1334a2 , and face the ultrasonic waves (or ultrasonic vibrations) generated by the horn 1321 . By allowing the stress to be concentrated, it is possible to laminate the plurality of base papers to the ultrasonic welding site by the second welding projections 1331 and 1332 .

Specifically, as shown in FIG. 4, the second fusion protrusions 1331 and 1332 are formed protruding along the circumferential direction at both ends of the roller 1330 (parts corresponding to both edges of the mask body 10). , Since it is possible to fuse the earring bands 11 and 12 to the mask body 10 by rotation of the roller 1330 and laminate a plurality of original papers, a plurality of fusion splicing processes for laminating a plurality of original papers One of the steps may be omitted.

On the other hand, the ultrasonic welding device 1320, using a high-frequency ultrasonic wave of 10 kHz or more, by applying ultrasonic vibration in the longitudinal direction or the transverse direction, it is possible to join the thermoplastic material. To this end, the ultrasonic welding device 1320 may include an ultrasonic oscillator, an ultrasonic transducer, a booster, and a horn 1321, and the ultrasonic oscillator converts a high-frequency current into an ultrasonic vibrator. The ultrasonic vibrator may convert electrical energy into mechanical energy using a conventional piezo material. A BLT (Bolt clamped Langevin-type Transducer) can be used for the vibrator by laminating multiple disks and applying pressure with bolts. The amplitude of the ultrasonic wave generated at the output end of the BLT must be increased in order to fuse the thermoplastic material, and for this purpose, a booster and a horn can be sequentially attached to the output surface of the BLT. Here, the booster is located between the BLT and the horn, and can amplify the amplitude of the BLT.

Unexplained reference numerals 1323a and 1323b are cooling fans, which are means for cooling the heat generated in the ultrasonic welding device 1320 by the rotation of the fan, and prevent the ultrasonic welding device 1320 from operating abnormally due to heat generation. can do.

The horn 1321 according to an embodiment of the present invention is arranged opposite the roller 1330 in parallel with the longitudinal direction of the roller 1330, and the earring band 11 is attached to the mask body 10 using the horn 1321. , 12) can be fixed without being transported when fusing, improving the complexity of the mask manufacturing apparatus 100 and facilitating maintenance of the ultrasonic welding apparatus 1320 such as replacement of the horn 1321 For this purpose, the horn 1321 is preferably located below the roller 1330 .

Meanwhile, FIG. 9 is a view showing a side view of an ultrasonic welding apparatus according to another embodiment of the present invention.

The ultrasonic welding apparatus 1320 may include a roller 210 and a horn 220, and the fusion object interposed between the roller 210 and the horn 220, that is, the first and second fusion objects, is They may be fused to each other by ultrasonic vibration through the horn 220 . For example, the first and second fusion objects may be the mask body 10 and the earring bands 11 and 12 .

At this time, the output surface (or the bonding surface 221 ) of the horn 220 may be curved to correspond to the shape of the outer peripheral surface of the roller 210 opposite, and at this time, the length of the bonding surface 221 , that is, the bonding When the surface 221 and the outer peripheral surface of the roller 210 have a short length opposite to each other, there is a problem in that the bonding force between at least two objects to be fused by ultrasonic vibration may be reduced (see FIG. 6(a) ).

Therefore, according to an embodiment of the present invention, the joint surface 221 of the horn 220 has an asymmetrical longitudinal cross-section viewed from the side of the roller 210 , and at least one end is upward along the outer peripheral surface of the roller 210 . It is extended, so that when the fusion object drawn in from one side is drawn out to the other side, it is drawn out through the drawing part having a height different from the drawing height, so that the bonding surface 221 of the horn 220 and the outer circumferential surface of the roller 210 facing it It is preferable to increase the length at which the fusion object moves between the livers to improve the bonding force by ultrasonic vibration (see Fig. 6(b)).

As above, preferred embodiments of the present invention have been described in detail with reference to the drawings. The description of the present invention is for illustrative purposes, and those of ordinary skill in the art to which the present invention pertains will understand that it can be easily modified into other specific forms without changing the technical spirit or essential features of the present invention.

Accordingly, the scope of the present invention is indicated by the claims described below rather than the above detailed description, and all changes or modifications derived from the meaning, scope, and equivalent concept of the claims are included in the scope of the present invention. should be interpreted

1: Mask 10: Mask body
11, 12: earring band 100: mask manufacturing device
110: fabric feeding device 120: laminating device
130: earring band attachment device 140: mask cutting device
1310: pedestal 1320: ultrasonic welding device
1321: horn 1322: ultrasonic generator unit
1323a, 1323b: cooling fan 1330: roller
1331, 1332: second fusion protrusions 1333a, 1333b, 1334a, 1334b: holding means
1333a1: Pin 1334a1: Velcro
1333a2, 1334a2: first fusion protrusion 1340: roller hanger
1350: power train 210: roller
220: horn 221: joint surface

Claims (11)

In the mask manufacturing apparatus for manufacturing a mask by attaching at least one earring band to the mask body,
an earring band attachment device for fusing the earring band to one edge of the mask body through ultrasonic vibration;
including,
The device for attaching the earring band includes a roller disposed on an outer circumferential surface and having a holding means for holding the earring band, and the earring band held by the holding means to one edge of the mask body by ultrasonic vibrations to fuse it to one edge of the mask body. Includes a fusing device,
and a horn for fusing the mask body and the earring band held by the holding means using ultrasonic vibration,
The earring band held by the holding means is drawn into a gap formed between the roller and the horn by rotation of the roller, and is mutually fused with the mask body,
The bonding surface of the horn toward the roller is curved to correspond to the shape of the outer peripheral surface of the roller, and the longitudinal cross-section of the horn viewed from the side of the roller is asymmetrical. The method of claim 1,
a robot picker that picks up the earring band and brings it to the holding means;
Mask manufacturing apparatus further comprising a. delete The method of claim 1,
The horn is a mask manufacturing apparatus, characterized in that fixed to the lower portion of the roller in a direction parallel to the longitudinal direction of the roller. The method of claim 1,
The holding means is provided in pairs on each of the left and right sides of the roller,
A mask manufacturing apparatus, characterized in that all of the pair of earring bands are fused to both edges of the mask body by one rotation of the roller. The method of claim 1,
The holding means is a mask manufacturing apparatus, characterized in that at least one pin for stably fixing the earring band in the form of a thread. The method of claim 1,
The holding means is a velcro for attaching the earring band, or a mask manufacturing apparatus, characterized in that it is a rough surface formed by corrosion processing. The method of claim 1,
The holding means is a mask manufacturing apparatus, characterized in that the tongs for holding the earring band. 7. The method of claim 6,
The holding means includes a first fusion protrusion protruding from the outer peripheral surface of the roller around the pin to form an ultrasonic fusion portion between the mask body and the earring band. The method of claim 1,
The mask manufacturing apparatus,
a fabric supply device for supplying at least one pre-prepared base paper;
a laminating device for laminating the at least one original paper supplied by the fabric supply device; and
a mask cutting device for cutting in the form of a mask body from a sheet of filter paper molded by the laminating device;
Mask manufacturing apparatus further comprising a. delete

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