KR20220145061A - Mask high speed manufacturing system and ear band attachment apparatus - Google Patents

Abstract

The present invention relates to a high speed manufacturing system for a mask, which can mass-produce the mask without fusion defects even in a high-speed manufacture mode during a mask body manufacturing process, by programing pressing force of an ultrasonic welding machine to correspond to a transfer speed of a fabric, and fusing with the ultrasonic welding machine with precise pressing force according to the programming. Also, fusion defects of ear bands do not occur even in the high-speed manufacture mode during a fusion process of the ear bands, by allowing a user to adjust a pressure reducing valve to correspond to a transfer speed of a mask body, and precisely control a fusion gap (fusion pressure) of a fusion punch.

Description

MASK HIGH SPEED MANUFACTURING SYSTEM AND EAR BAND ATTACHMENT APPARATUS

The present invention relates to a high-speed mask manufacturing system having a high-speed mask body manufacturing device and an ear band attachment device, and more specifically, a pneumatic cylinder with adjustable air pressure during the ear band attachment process is applied to the fusion punch, and a pressure reducing valve is used. Thus, by adjusting the pneumatic pressure of the pneumatic cylinder, the high-speed mask manufacturing system capable of mass-producing high-quality masks by precisely controlling the fusion gap (fusion pressure) of the fusion punch to prevent fusion defects of the ear band even in high-speed production mode and It relates to his ear band attachment device.

In general, dust is generated in the working environment of paper mills, textile factories, quarries, etc., or in the working environment of various chemical plants and metal processing plants such as welding and plating, a large amount of toxic gas is generated.

If a worker continuously inhales such dust or toxic gas, respiratory diseases such as the lungs can be induced, and in severe cases, it is fatal to the human body. have.

In recent years, the wearing of masks has been increasing to prevent the spread of respiratory infections such as Corona Virus Infectious Disease-19 (COVID-19).

Conventional disposable mask, the front of the mask fabric (mask body) (filter paper made of non-woven fabric) formed by bending the front surface several times; A hard finish part that is ultrasonically heat-sealed with a hanging band (ear band) on both sides of the fabric; and a metal wire (nose or nose wire) that is formed on the upper part of the fabric and can be freely bent; The metal wire bends the metal wire to fit the contour of the user's face with severe curvature, as well as spreads the folds on the front of the fabric to evenly adhere to the lower part of the wearer's nose and chin to increase the dustproof efficiency. do.

Hereinafter, the configuration of the fusion punch of the conventional ear band attachment device will be described.

1 is a view showing a general disposable mask, the ear bands are fused on both sides of the mask body, FIG. 2 is a perspective view of a part of a conventional ear band attachment device, and FIG. 3 is a front view of FIG. is a view showing a fusion state as a front view of FIG. 2 , and FIG. 5 is a left side view of FIG. 2 .

First, as shown in FIG. 1 , in general, a disposable mask 7 is composed of a mask body 5 made by cutting and fusing a fabric, and an ear band 6 fused to both sides of the mask body 5 . can be A fusion portion 2 is formed on the edge of the mask body 5 , and the nose pad 3 is inserted into the edge of the mask body 5 . The fusion site refers to a place where the end of the ear band 6 is fused to the mask body 5 .

And, as shown in FIGS. 2 to 5, the conventional ear band attachment device 90 is installed so that the up-down movable bracket 92 is movable up and down by a hydraulic cylinder (not shown) on the fixed frame 91, The fusion punch 95 is installed movably up and down through the spring 94 at the lower part of the up-down movable bracket 92 .

That is, before the ear band fusion, the fusion punch 95 maintains a raised state (see FIG. 3), and during the ear band fusion, the fusion punch 95 maintains a descended state (see FIG. 4).

When the ear band is fused, the fusion punch 95 is configured to elastically contact the fusion portion ( FIG. 1 ) of the mask body 5 and the ear band 6 by the elastic force of the spring 94 . That is, it is configured to adjust the fusion gap (fusion pressure) of the fusion punch 95 by the elastic force of the spring 94 .

However, since the conventional ear band attachment device adjusts the fusion gap of the fusion punch depending on the elastic force of the spring, an error of the fusion gap occurs when converting from the low-speed production mode to the high-speed production mode or vice versa. There is a technical problem that it is difficult to realize high-speed mass production because the welding pressure of the ear band is often inaccurate and poor welding of the ear band occurs.

Korean Patent Registration No. 10-0783311 (Registration Date: December 03, 2007)

The present invention is to solve the above problems, and a first object is to program the pressing force of the ultrasonic welding machine to correspond to the feed speed of the fabric during the mask body manufacturing process, and fusing the ultrasonic welding machine with a precise pressing force according to the programming, It is to provide a high-speed mask manufacturing system capable of mass production without fusion defects even in high-speed production mode.

In addition, the second object of the present invention is to precisely control the fusion gap (fusion pressure) of the fusion punch by the user adjusting the pressure reducing valve to correspond to the feed speed of the mask body during the fusion process of the ear band, so that even in high-speed production mode An object of the present invention is to provide an ear band attachment device for a high-speed mask manufacturing system that does not cause band fusion defects.

In order to achieve the above object, the high-speed mask manufacturing system of the present invention includes a high-speed mask body manufacturing apparatus for manufacturing a mask body by cutting and fusing fabric, and a high-speed mask body manufacturing apparatus An ear band attachment device for attaching ear bands to both sides of the mask body is provided.

First, the mask body high-speed manufacturing apparatus of the present invention,

a fabric supply unit for supplying at least one fabric; a fabric tension control unit for constantly automatically controlling the tension of the fabric; a nose piece supply unit installed on the base frame to supply a nose piece (nose wire or metal wire); a fabric eccentricity adjustment unit installed on the base frame to adjust the eccentricity of the fabric; a wrinkle forming unit installed on the base frame to form wrinkles on the fabric; a nose pad forming unit for transferring the nose pad to form the nose pad in the distal end; a fabric fusing unit for fusing the edges of the fabric and fixing the nose pad while adjusting the pressing force; a pair of fabric cutting rollers for cutting the fabric to which the nose rod is fused to a predetermined size; a pair of fabric transport rollers positioned at the front and rear of the fabric cutting roller and configured to transport the fabric cut by the fabric cutting roller; a power unit for providing power; A pair of anti-backlash double gears to prevent backlash; and a control panel for automatically controlling a series of processes of supplying the fabric and fusing the edges of the fabric to manufacture a mask body; includes

In addition, the power unit (drive unit),

a main driving motor for generating power; It is connected to the main driving motor by a timing belt, and the power of the main driving motor is applied to the nose cord cutting roller and the nose cord transfer roller of the nose cord forming unit, the fusion mold roller of the fabric fusion unit, the fabric transfer roller, and the fabric cutting a driving pulley installed on the base frame to provide a roller; and a gear unit comprising a plurality of gear trains installed to be interlocked with the driving gear of the driving pulley; includes

In addition, the mask body high-speed manufacturing apparatus of the present invention,

a front support bracket installed on the upper surface of the base frame; a rear support bracket disposed behind the front support bracket; and a plurality of fabric guide rollers installed on the base frame to guide the movement of the fabric. includes

In addition, the fabric tension control unit,

a variable signal generator detachably installed at one end of the drum shaft of the far end to generate a variable signal value and provide the variable signal value to the control unit; and a powder brake installed at one end of the drum shaft and configured to adjust a rotation torque of the drum shaft according to a signal value provided to the control unit. includes

In addition, the variable signal generator,

a support bracket detachably installed on one end of the drum shaft; an arm rotation shaft rotatably installed on the support bracket by a bearing; an outer diameter sensing roller for detecting the variable outer diameter of the fabric drum; an arm provided with the outer diameter sensing roller and rotatably installed at a predetermined angle on the arm rotation shaft; and a variable resistor connected to the arm rotation shaft and configured to provide a variable signal to the control unit according to an angle change caused by rotation of the arm. includes

In addition, the automatic adjustment of the fabric tension of this embodiment,

A variable signal is generated from the variable resistor according to the change in the diameter of the far-end drum and provided to the control unit, and the control unit applies a voltage corresponding to the variable signal to the powder brake to constantly and automatically control the tension of the far-end drum.

In addition, the nose pad supply unit,

a nose pad winding drum for winding the nose pad; a nose pad taking-up drum support bracket installed on the base frame to rotatably support the nose pad take-up drum; and a nose piece guide tube installed on the upper part of the base frame to guide the transfer of the nose piece. includes

In addition, the fabric eccentricity adjustment unit,

a fabric eccentricity adjustment body installed on the base frame; an inclined shaft installed so as to be tilt-adjustable at the center of the distal eccentricity adjustment body; a roller support plate installed on the inclined shaft; a pair of fabric eccentricity adjustment rollers installed at a predetermined interval on the upper portion of the roller support plate to support the fabric; an eccentricity sensor installed on one side of the fabric eccentricity adjustment body to detect the eccentricity of the fabric; and an eccentricity adjustment control unit for automatically adjusting the eccentricity of the fabric by adjusting the inclination of the inclined shaft according to the detection value of the eccentricity sensor. includes

In addition, the gear unit,

a first gear installed on the rotating shaft of the fabric cutting roller so as to be tooth-engaged (engaged) with the driving gear of the driving pulley to receive power, and disposed to be teeth-engaged with the double gear for preventing backlash; a second gear installed on the rotating shaft of the fabric transfer roller and disposed to be meshed with the double gear for preventing backlash; a third gear installed on the rotation shaft of the fusion mold roller and engaged with a plurality of relay gears to receive the rotational force of the second gear; a fourth gear installed on the rotating shaft of the nose pad cutting roller of the nose pad forming unit; a fifth gear installed on the rotating shaft of the nose pad conveying roller of the nose pad forming unit, the fifth gear being teeth-engaged with a plurality of relay gears to receive the rotational force of the fourth gear; and an auxiliary power transmission unit for transmitting the rotational force of the second gear to the fourth gear. includes

In addition, the auxiliary power transmission unit,

a driving pulley installed concentrically to the second gear; a driven pulley concentrically installed on the fourth gear; a timing belt connecting the driving pulley and the driven pulley; a tension roller for maintaining the tension of the timing belt; and a power lock installed on the driven pulley. includes

In addition, the double gear for preventing backlash,

A first anti-backlash gear having teeth formed on the outer periphery; a second anti-backlash gear concentrically fastened to the first anti-backlash gear in a state in which the teeth are disposed on the outer periphery so as to deviate from the teeth of the first anti-backlash gear; and a bolt for fastening the first anti-backlash gear and the second anti-backlash gear. includes

In addition, the wrinkle forming unit,

a wrinkle roller for forming a plurality of wrinkles on the fabric; And a wrinkle pressing unit for pressing the fabric to complete the wrinkle; includes

In addition, the nose pad forming unit,

a nose piece guide plate for guiding the transfer of the nose piece; a nose pad transport roller for transporting the nose pad guided by the nose pad guide plate; a nose pad cutting roller for cutting the nose pad transferred by the nose pad feed roller to a predetermined size; and a nose pad pressing plate that presses the nose pad cut by the nose pad cutting roller to the fabric and adheres thereto; includes

In addition, a distal guide plate is positioned below the nose pad guide plate, and guide sidewalls may be formed on both sides of the distal guide plate to prevent separation of the fabric.

In addition, the fabric fusion unit,

fusion mold roller; an up-down guide bracket fixedly installed on the bottom surface of the base frame; a slider movably installed on the up-down guide bracket; a fusing machine mounted on the slider and pressing the fusing mold roller to fuse the edges of the fabric; a pneumatic cylinder fixedly installed on the bottom surface of the up-down guide bracket to move the slider up and down and adjusting a pressing force with the fusion mold roller according to a command signal from the control panel (PLC); and a load cell for sensing the pressing force of the fusing machine. includes

In addition, a cooling fan may be installed on a side surface of the up-down guide bracket.

In addition, a through hole through which the fusion tip of the fusion splicer passes is formed on the upper surface of the base frame, and a fusion tip guide portion communicating with the through hole and guiding the fusion tip may be formed at the upper end of the up-down guide bracket.

In addition, a blower for preventing dust may be further installed to prevent dust contamination of the fusion tip.

In addition, the slider may be vertically movable on the up-down guide bracket by a guide rail, and a seating portion may be formed on the slider for detachably seating the splicer.

On the other hand, the ear band attachment device of the present invention,

a pneumatic cylinder operated by pneumatic; a fusion punch installed in the pneumatic cylinder to fuse the ear band on both sides of the mask body; and a pressure reducing valve for adjusting the fusion gap of the fusion punch by adjusting the air pressure supplied to the pneumatic cylinder. includes

During the ear band fusion process, the pneumatic pressure of the pressure reducing valve is adjusted according to the feed speed of the mask body and the fusion gap of the fusion punch is precisely controlled to prevent the fusion defect of the ear band even in a high-speed production mode.

The ear band attachment device of this embodiment,

an ear band cutting unit for cutting the ear band transferred to the cutting position to an appropriate size; an ear band clamp unit that picks up both ends of the ear band cut to an appropriate size and puts them on the fusion site of the mask body; and an ear band fusion unit for fusing the ear band placed on the fusion region of the mask body to precisely control the fusion gap corresponding to the feed speed of the mask body. includes

The ear band attachment device of this embodiment,

a base frame installed on the ground; a mask body transfer tray installed on the base frame to sequentially transfer the mask body one by one while cyclically rotating in an independent orbit; a mask body transfer tray driving unit for driving the mask body transfer tray; a mask body input unit that sequentially puts the mask body on the upper surface of the mask body transfer tray one by one; an ear band supply unit supplying the ear band; an ear band transfer unit for transferring the ear band supplied from the ear band supply unit to a cutting position; a fixing bracket fixedly installed on the upper portion of the base frame; an up-down movable bracket installed in an up-down manner at a lower portion of the fixing bracket by a guide bar; and an up-down cylinder installed on the fixing bracket to up-down the up-down movable bracket. further includes

In addition, a plurality of mask body accommodating parts for accommodating the mask bodies one by one are formed on the upper surface of the mask body transfer tray, and a mask body stopper for preventing the movement of the mask body may be formed between the mask body accommodating parts. .

In addition, the mask body transfer tray driving unit,

a plurality of pulleys engaged with the mask body transport tray to rotate the mask body transport tray; and a driving motor for rotating the pulley. includes

In addition, the ear band transfer unit,

a holder for selectively holding an end of the ear band supplied by the ear band supply unit; a transport guide rail installed in the front-rear direction on the upper surface of the base frame; an ear band pulling finger installed movably in the front and rear directions along the transport guide rail and pulling the ear band held by the holder; an ear band pulling finger moving belt connected to the ear band pulling finger for moving the ear band pulling finger in a forward and backward direction along the transport guide rail; a moving belt pulley for rotating the ear band pulling finger moving belt; and a driving motor for rotating the moving belt pulley. includes

In addition, the ear band cutting unit,

eccentric rotating eccentric cam; an eccentric cam driving unit for rotating the eccentric cam; a connecting rod connected to the eccentric cam to convert the rotational motion of the eccentric cam into a vertical linear motion; and a cutter for cutting the ear band by vertical and linear motion of the connecting rod. includes

In addition, the ear band clamp unit,

Servo motor providing rotational force; and an ear band clamper installed to be rotatable by 90° by the servo motor and placed on the fusion site of the mask body by picking up both ends of the ear band cut by the ear band cutting unit. includes

In addition, the ear band fusion unit,

a pneumatic cylinder installed under the up-down movable bracket and operated using pneumatic pressure; a fusion punch installed in the pneumatic cylinder to fuse the ear band on both sides of the mask body; and a pressure reducing valve for adjusting the fusion gap of the fusion punch by adjusting the air pressure supplied to the pneumatic cylinder. includes

As described above, the present invention has the following effects.

First, during the fusion process of the ear band, the user adjusts the pressure reducing valve to match the transfer speed of the mask body to precisely control the fusion pressure of the fusion punch. It has the advantage that defects do not occur.

Second, during the mask body manufacturing process, the pressing force of the ultrasonic welding machine is programmed to correspond to the feed speed of the fabric, and the ultrasonic welding machine is fused with a precise pressing force according to the programming. can

1 is a view showing a general disposable mask, the band is fused on both sides of the mask body
2 is a perspective view showing a part of a conventional ear band attachment device;
3 is a front view of FIG. 2 showing a state before fusion
4 is a front view of FIG. 2 showing a fusion state;
Fig. 5 is a left side view of Fig. 2;
Figure 6 is a front view showing a mask body high-speed manufacturing apparatus of the mask high-speed manufacturing system according to the present invention
7 is a plan view of FIG. 6
Fig. 8 is a right side view of Fig. 6;
Fig. 9 is a left side view of Fig. 6;
10 is a perspective view showing the configuration of the high-speed mask body manufacturing apparatus installed on the front base frame in the mask body high-speed manufacturing apparatus according to the present invention;
11 is a rear view of FIG.
12 is a plan view of FIG. 11
13 is a front view showing the drum shaft and the chuck of the present invention;
14 is a side view showing a variable signal generator of the present invention;
15 is a front view showing a variable signal generator of the present invention;
Figure 16 is a front view showing the fabric eccentricity prevention unit of the present invention
17 is a plan view showing the fabric eccentricity prevention unit of the present invention
18 is a side view showing the fabric eccentricity prevention unit of the present invention
19 is a perspective view showing a nose pad forming unit of the present invention;
20 is a front view showing the fusion unit of the present invention;
21 is a rear view showing the fusion unit of the present invention;
22 is a front view showing the fine adjustment knob;
23 is a perspective view showing the anti-backlash double gear of the present invention
24 is a front view showing the anti-backlash double gear of the present invention;
25 is a plan view showing the anti-backlash double gear of the present invention;
Figure 26 is a longitudinal cross-sectional view showing the anti-backlash double gear of the present invention
27 is a front view showing an ear band attachment device of a high-speed mask manufacturing system according to the present invention;
28 is an enlarged view of the main part of FIG. 27
Fig. 29 is a plan view of Fig. 27;
30 is an enlarged view of the main part of FIG. 29
FIG. 31 is a left side view of FIG. 27 showing an ear band supply unit, an ear band clamp unit, and an ear band fusion unit; FIG.
32 is a plan view of FIG. 31
33 is a view showing the ear band fusion unit in FIG. 27 taken out
FIG. 34 is a view showing an ear band clamp unit taken from FIG. 27; FIG.
35 is a perspective view showing the ear band supply and transport of the present invention;
36 is a perspective view showing a state immediately before the transfer, clamping and cutting of the ear band of the present invention;
37 is a perspective view showing the ear band transfer of the present invention;
38 is a perspective view showing the clamping and cutting state of the ear band of the present invention;
39 is a perspective view showing a state after clamping and cutting of the ear band of the present invention;
40 is a perspective view illustrating a state in which the ear band clamper of the present invention is rotated by 90°;
41 is a perspective view illustrating a state in which the ear band clamper of the present invention rotates 90° and then picks up both ends of the cut ear band and puts them on the fusion site of the mask body, and the fusion punch is fused.
42 is a perspective view showing the completion of fusion of the ear band;
43 is a perspective view showing the ear band cutting unit of the present invention

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the mask high-speed manufacturing system of the present invention.

In describing the present embodiment, descriptions of technical contents that are well known in the technical field to which the present invention pertains and are not directly related to the present invention will be omitted.

This is to more clearly convey the gist of the present invention without obscuring the gist of the present invention by omitting unnecessary description. For the same reason, some components in the accompanying drawings are exaggerated, omitted, or schematically illustrated.

In addition, the size of each component does not fully reflect the actual size.

Also, device or element orientation (eg "front", "rear", "up", "down", "top", "bottom") The expressions and predicates used herein with respect to terms such as ", "left", "right", "lateral", etc. are used merely to simplify the description of the invention, and It does not indicate or imply that a device or element must simply have a particular orientation.

The mask manufacturing system of the present invention includes a high-speed mask body manufacturing apparatus 1000 (shown in FIGS. 6 to 26) for manufacturing a mask body 5 by cutting and fusing the fabric 1, and a high-speed mask body manufacturing apparatus ( An ear band attachment device 2000 (shown in FIGS. 27 to 43 ) for attaching the ear band 6 to both sides of the mask body 5 manufactured in 1000) is provided.

As shown in FIG. 1 , the disposable mask 7 is composed of a mask body 5 and an ear band 6 fused to both sides of the mask body 5 . The mask body 5 is manufactured by cutting and fusing a plurality of fabrics 1 (see FIG. 6 ) in the mask body manufacturing process, and the ear band 6 is fused to both sides of the mask body 5 in the ear band attaching process. Thereby, the mask 7 which is a finished product is completed.

First, the mask body high-speed manufacturing apparatus of the present invention will be described.

6 is a front view showing a high-speed mask body manufacturing apparatus of a mask high-speed manufacturing system according to the present invention, FIG. 7 is a plan view of FIG. 6, FIG. 8 is a right side view of FIG. 6, FIG. 9 is a left side view of FIG. 10 is a perspective view showing the configuration of the high-speed mask body manufacturing apparatus installed on the front base frame in the high-speed mask body manufacturing apparatus according to the present invention, FIG. 11 is a rear view of FIG. 10, FIG. 12 is a plan view of FIG. A front view showing the drum shaft and chuck of the present invention, Figure 14 is a side view showing the variable signal generator of the present invention, Figure 15 is a front view showing the variable signal generator of the present invention, Figure 16 is the far-end eccentricity of the present invention A front view showing the prevention unit, Figure 17 is a plan view showing the fabric eccentricity prevention unit of the present invention, Figure 18 is a side view showing the fabric eccentricity prevention unit of the present invention, Figure 19 is a nose pad forming unit of the present invention A perspective view, Fig. 20 is a front view showing the fusing unit of the present invention, Fig. 21 is a rear view showing the fusing unit of the present invention, Fig. 22 is a front view showing a fine adjustment knob, Fig. 23 is a backlash prevention of the present invention A perspective view showing a double gear, Fig. 24 is a front view showing the anti-backlash double gear of the present invention, Fig. 25 is a plan view showing the anti-backlash double gear of the present invention, and Fig. 26 is an anti-backlash double gear of the present invention One longitudinal cross-sectional view, FIG. 27 is a flowchart illustrating a high-speed manufacturing method of a mask body of the present invention, and FIG. 28 is a flowchart illustrating a fusion bonding method of the present invention.

First, referring to FIGS. 6 to 28 , the mask body high-speed manufacturing apparatus 1000 of the present invention includes a base frame (10:11,12), a fabric supply unit 20, a fabric tension control unit 100, and a nose pad supply. Unit 30, fabric guide roller 40, fabric eccentricity adjustment unit 200, wrinkle forming unit (50:51, 52), front support bracket 61, rear support bracket 65, nose bridge forming unit 300 ), a fabric fusion unit 400 , a fabric cutting roller 71 , a fabric transfer roller 75 , a power unit (drive unit), a double gear 600 for preventing backlash, and a control panel 80 .

Hereinafter, the components of the high-speed mask body manufacturing apparatus 1000 of the present invention will be described in more detail.

First, referring to FIGS. 6 to 9 , the base frames 10:11 and 12 installed on the ground (floor) (not shown) may be composed of a front base frame 11 and a rear base frame 12 . have.

The base frames 10:11 and 12 are not limited to the front base frame 11 and the rear base frame 12, and the front base frame 11 and the rear base frame 12 may be formed separately or integrally. have.

The front base frame 11 may have a relatively low height, and the rear base frame 12 may have a relatively high height.

A pedestal 13 and a wheel 14 may be installed under the base frames 10:11 and 12.

The pedestal 13 stably supports the entire mask body high-speed manufacturing apparatus 1000, and the wheel 14 is used during movement.

The base frames 10:11 and 12 are structures for installing the above-mentioned components, and are not limited to this embodiment, and the number, shape, and structure may be variously changed.

In addition, a front support bracket 61 and a rear support bracket 65 may be installed on the upper surface of the front base frame 11 . A rear support bracket 65 is disposed behind the front support bracket 61 .

Two of the front support brackets 61 are installed as a pair at regular intervals, and within the interval, the fabric cutting roller 71, the fabric transfer roller 75, and the fusion mold roller 410 are provided with gap adjustment knobs 72 and 76, respectively. , 411) is installed so that height adjustment (gap adjustment) is possible.

The mask body 5 manufactured in this embodiment is described as a disposable mask made of three layers of fabric (non-woven fabric and filter paper) (see FIG. 6 ) as an example, and as shown in FIG. 1 , the A fusion part 2 is formed on the rim, and the nose pad 3 is inserted into the rim.

The three fabrics 1 may have a width (size) of 195/175/195 mm, and the mask body 5 may have a width of 95 mm.

Three fabric supply units 20 for supplying the original fabric 1 of the mask may be provided at predetermined positions of the rear base frame 22 .

6, 8, and 13, the fabric supply unit 20 supplies the fabric 1, the drum shaft 21 of the fabric 1 and the drum chuck installed on the drum shaft 21 (22) is provided.

Here, the original drum 23 refers to a roll on which the original 1 is wound, and the drum shaft 21 refers to a shaft (shaft) for mounting the original drum 23 .

The drum chuck 22 is inserted into the inner diameter of the far-end drum 23, and serves to detachably fix the far-end drum 23.

In addition, referring to Figures 6, 8, and 13,

The fabric tension adjusting unit 100 is a device for automatically controlling the tension of the fabric 1 in accordance with the feed speed of the fabric 1 .

Hereinafter, the configuration and operation of the fabric tension control unit will be described in detail with reference to FIGS. 6, 8, 14, and 15 .

The far-end tension control unit 100 includes a variable signal generator 110 that is detachably installed on one end of the drum shaft 21 to generate a variable signal value; a powder brake 120 installed at one end of the drum shaft 21 and configured to adjust the rotation torque of the drum shaft 21; a control unit 130 for controlling the operation of the powder brake 120 according to a signal value provided by the variable signal generating unit 110 (refer to FIG. 6 ); includes The control unit 130 may be installed on the rear base frame 12 .

Briefly looking at only the principle of the powder brake 120, when no current flows in the excitation coil, the clutch is released and torque is not transmitted. At this time, the powder is pressed to the outer periphery of the powder cap by centrifugal force lose Conversely, when the excitation coil is excited, the powder is connected in an annular shape within the powder gap by magnetic flux to transmit torque, thereby operating on the principle of controlling the rotational torque of the drum shaft 21 .

14 and 15, the variable signal generating unit 110 includes a support bracket 111 that is detachably installed on one end of the drum shaft 21 with a bolt or the like; an arm rotation shaft 113 rotatably installed on the support bracket 111 by the bearing 112; an outer diameter detecting roller 114 for detecting a variable outer diameter of the original drum 23; an arm 115 having an outer diameter sensing roller 114 and being rotatably installed at a predetermined angle on the arm rotation shaft 113 ; and a variable resistor 116 connected to the arm rotation shaft 113 and providing a variable signal to the controller 130 according to a variable angle caused by the rotation of the arm 115 ; includes The variable resistor 116 may be connected to the arm rotation shaft 113 by a coupling 117 .

The stopper bolt 118 serves to limit the rotation angle of the arm 115 . That is, the stopper bolt 118 serves to support the arm 115 not to be tilted by more than a predetermined angle when the arm 115 is tilted back when the original drum 23 is replaced.

Looking at the operation of the fabric tension control unit 100, the outer diameter sensing roller 114 is positioned in contact with the outer diameter of the fabric drum 23, and the diameter of the fabric drum 23 is reduced when the fabric is transported, at this time the arm 115 ) rotates around the arm rotation shaft 113 , and the variable resistor 116 senses a variable angle caused by the rotation of the arm 115 and provides the variable signal to the controller 130 (refer to FIG. 1 ).

The control unit 130 applies a voltage corresponding to the feed speed of the fabric to the powder brake 120 based on the received variable signal, so that the powder brake 120 adjusts the rotation torque of the drum shaft 21 . By doing so, the tension of the fabric 1 can be constantly maintained in accordance with the moving speed of the fabric 1 .

As described above, in this embodiment, according to the change in the diameter of the far-end drum 23, a variable signal is generated from the variable resistor 116 and provided to the control unit 130, and the control unit 130 is a voltage corresponding to the variable signal. is applied to the powder brake 120 so that the tension of the fabric 1 is always constant and automatically controlled when transferring the fabric.

In this way, by always maintaining the tension of the fabric 1 constant, no impact is applied to the braking part during braking and damage to the braking part is prevented, and the problem that the fabric 1 is folded or cut does not occur.

In addition, referring to FIGS. 6, 7, and 8 , the nose pad supply unit 30 is a device for supplying a nose pad (nose wire) 3 covering the nose of the mask wearer, and to the rear base frame 12 can be installed.

The nose pad supply unit 30, the nose pad winding drum 31 for winding the nose pad (3); a nose pad taking-up drum support bracket 32 installed on the rear base frame 12 to rotatably support the nose pad take-up drum 31; and a nose piece guide tube 33 installed on the upper part of the rear base frame 12 to guide the transfer of the nose piece 3; includes

The nose pad 3 is inserted into the nose piece guide tube 33 , and serves to stably guide the nose piece 3 to the nose piece forming unit 300 .

In addition, the fabric guide roller 40 may be installed throughout the base frame 10 to guide the movement of the fabric 1 . That is, the fabric guide roller 40 includes a plurality of guide rollers 41, 42, 43, 44, 45, and the like.

In addition, the distal eccentricity adjustment unit 200 is a device for adjusting the eccentricity of the distal end 1 , and may be installed in the rear base frame 12 .

Hereinafter, the configuration and operation of the far-end eccentricity adjusting unit 200 will be described in detail with reference to FIGS. 8 and 16 to 18 .

The distal eccentricity adjusting unit 200 includes a distal eccentricity adjusting body 210 installed on the rear base frame 120; Inclined shaft 220 installed so as to be tilt-adjustable in the center of the distal eccentricity adjustment body 210; a roller support plate 230 installed on the inclined shaft 220; A pair of fabric eccentricity adjustment rollers 240 installed to maintain a predetermined interval on the upper portion of the roller support plate 230 to support the fabric (1); an eccentricity sensor 250 installed on one side of the fabric eccentricity adjustment body 210 to detect the eccentricity of the fabric 1; and an eccentricity adjustment control unit 260 for automatically adjusting the eccentricity of the fabric 1 by adjusting the inclination of the inclined shaft 220 according to the detection value of the eccentricity sensor 250 ; includes

Unexplained reference numeral 211 denotes a manual tension adjustment knob. The manual tension adjustment knob is configured so that the operator can manually adjust the eccentricity.

Looking at the operation of the fabric eccentricity adjustment unit 200, when the fabric 1 is biased to one side, that is, eccentricity occurs, the eccentricity sensor 250 detects the eccentricity of the fabric 1, and the detection By controlling the inclination of the inclined shaft 220 according to the value and removing the eccentricity of the fabric 1 by adjusting the position of the fabric eccentricity adjustment roller 240, the fabric is not folded, and the welding and cutting positions are accurately set. can

In addition, referring to FIG. 7 , the wrinkle forming unit 50 may be installed on the front base frame 11 to form wrinkles on the fabric 1 . The wrinkle forming unit 50 includes a wrinkle roller 51 for forming a plurality of wrinkles on the fabric 1, and a wrinkle pressing unit 52 for pressing the fabric 1 to complete the wrinkle.

In addition, the nose pad forming unit 300 may be installed on the rear support bracket 65 to transfer the nose pad 3 to form the nose pad 3 in the fabric 1 .

Hereinafter, the configuration and operation of the nose pad forming unit 300 will be described in detail with reference to FIGS. 6, 7, 10, 12, and 19 .

The nose piece forming unit 300 includes a nose piece guide plate 310 for guiding the transfer of the nose piece 3; a nose pad transport roller 320 for transporting the nose pad 3 guided by the nose pad guide plate 310; a nose pad cutting roller 330 for cutting the nose pad 3 transferred by the nose pad feed roller 320 to a predetermined size; and a nose pad pressing plate 340 that presses the nose pad 3 cut by the nose pad cutting roller 330 to the fabric 1 and adheres thereto; includes

The nose pad press plate 340 can be adjusted in height by a height adjustment knob 342, and a press roller 341 is installed in front of the nose pad press plate 340 to press the nose pad 3 and the fabric 1 at the same time. can

The nose pad feed roller 320 and the nose pad cutting roller 330 are provided with height adjustment knobs 321 and 331 for adjusting the height. Reference numeral 332 denotes a fixing knob for fixing the nose rod guide plate 310 .

In this embodiment, the size of the cut nose pad 3 may be set to 100 mm.

For reference, a fabric guide plate 91 is positioned under the nose pad guide plate 310, and guide sidewalls 92 are formed on both sides of the fabric guide plate 91 to prevent separation of the fabric 1 can

By means of the fabric guide plate 91 and the guide sidewall 92 , the transfer of the fabric is stably induced, and the nose pad 3 is accurately positioned on the edge 2 of the fabric 1 .

Looking at the operation of the nose pad forming unit 300 , the nose piece guide plate 310 guides the transfer of the nose piece 3 , and in this case, the nose piece 3 may be introduced through the nose piece guide tube 33 .

The nose pad transport roller 320 transports the nose pad 3 guided by the nose pad guide plate 310, and then the nose pad cutting roller 330 rotates and cuts the nose pad 3 to a predetermined size.

The nose pad pressing plate 340 serves to press the nose pad 3 cut by the nose pad cutting roller 330 to the fabric 1 to adhere it to the fabric 1 .

For reference, as shown in FIG. 12 , the fabric 1 is stably transported without being separated by the fabric guide plate 91 and the guide sidewall 92 .

In addition, the fabric fusing unit 400 adjusts the pressing force to fuse the edge 2 of the mask body 5 and fix the nose pad 3 .

Hereinafter, the configuration and operation of the fabric fusing unit 400 will be described in detail with reference to FIGS. 6, 7, 20 and 21 .

The fabric welding unit 400, the welding mold roller 410; an up-down guide bracket 420 fixedly installed on the bottom of the front base frame 11; a slider 430 that is vertically movably installed on the up-down guide bracket 420; a fusing machine 440 mounted on the slider 430 and contacting the fusing mold roller 410 to fuse the edge 2 of the fabric 1; a pneumatic cylinder 450 which is fixedly installed on the bottom surface of the up-down guide bracket 420 to move the slider 430 up and down and adjusts the pressing force according to the programming of the control panel 80 ; And a load cell (460) for sensing the pressing force of the splicer (440); includes

The welding machine 440 may use an ultrasonic welding machine, and the pneumatic cylinder 450 is not limited thereto as a kind of actuator and may be replaced with another device capable of elevating/lowering control.

In this embodiment, a speed-responsive pressure control method is used for high-speed production of the mask body 5 . That is, when the fabric transport speed (V) increases when switching to high-speed mode, the ultrasonic irradiation time at the welding tip 441 of the welding machine 440 is shortened. Strength (W) can be increased.

However, since the ultrasonic amplitude (A) is constant, the mask body fusion strength (W) can be increased only by increasing the pressing force (P). This can be confirmed from the formula below for the mask body fusion strength.

[Formula]

Mask body welding strength (W) = [ultrasonic amplitude (A) * pressing force (P)] / [speed (V)]

For reference, conventionally, because the knob of the fusion mold roller is manually adjusted, the fusion mold roller is out of level or the adjustment of the fusion gap is inaccurate and an error occurs. Mask body production is delayed, and if the pressing force is excessive by turning the gap adjustment knob too much, there is a serious problem of causing damage to the welding tip (fusion punch).

In consideration of this problem, the fabric fusing unit 400 of this embodiment operates as follows. It will be described with reference to FIGS. 20 and 21 .

First, the pressing force of the fusing machine 440 corresponding to the feed speed of the fabric 1 is programmed, and the control panel 80 (see FIG. 7 ) provides a pressing signal to the pneumatic cylinder 450 according to the programming.

The pneumatic cylinder 450 raises and lowers the splicer 440, but by fusing in a state in which the splicer 440 is raised and lowered according to the pressure signal provided by the control panel 80, a gap error does not occur and the splicer is welded with a precise press force. It is possible to increase the productivity of the mask body and effectively prevent damage to the welding tip of the welding machine.

At this time, the load cell 460 senses the pressing force of the fusing machine 440 in real time, and feeds back the sensed value to the control panel 80 .

Based on the pressing force sensed by the load cell 460 , the control panel 80 controls the position of the fusing machine with a precise pressing force corresponding to the low-speed production mode or the high-speed production mode.

A cooling fan 480 may be installed on a side surface of the up-down guide bracket 420 . The cooling fan 480 serves to rapidly cool the fusing machine 440 when necessary.

A through hole 11a through which the welding tip 441 of the welding machine 440 passes is formed on the upper surface of the front base frame 11, and the upper end of the up-down guide bracket 420 communicates with the through hole 11a and is fused. A fusion tip guide portion 420a for guiding the tip 441 may be formed. The fusion tip guide portion 420a guides the fusion tip 441 to stably maintain the vertical movement of the fusion tip.

In order to prevent dust contamination of the fusion tip 441, a blower 470 for preventing dust may be further installed.

The slider 430 is installed to be movable up and down on the up-down guide bracket 420 by the guide rail 431 to facilitate up-down movement, and the slider 430 is mounted for detachably mounting the splicer 440 to the slider 430 . A portion 433 may be formed. The seating part 433 serves to stably install the welding machine 440 .

In addition, referring to FIGS. 10 and 12 , the fabric cutting roller 71 may be installed on the front support bracket 11 to cut the fabric 1 to which the nose rod 3 is fused to a predetermined size.

The fabric cutting roller 71 includes a pair of upper and lower rollers, and has a structure in which the upper and lower rollers are arranged to maintain a constant distance from each other, and the fabric 1 is placed between the regular intervals, and the fabric cutting roller 71 ) A knob 72 for adjusting the distance between the upper and lower rollers may be installed on the upper part. Since such a structure is a known technique, reference numerals for it are omitted.

In addition, the fabric transport roller 75 is located in front and rear of the fabric cutting roller 71, and can be installed on the front support bracket 11 to transport the fabric 1 cut by the fabric cutting roller 71. have.

The fabric conveying roller 75 is also composed of a pair of upper and lower rollers, and the upper and lower rollers are arranged to maintain a constant distance from each other. ) A knob 76 for adjusting the distance between the upper and lower rollers may be installed at the upper portion.

In addition, referring to FIG. 22 , a fine adjustment roller 77 for adjusting the tension of the fabric 1 is installed on the side surface of the front support bracket 61 , and the fine adjustment roller 77 is rotated by the knob 78 . It is configured to adjust the tension of the fabric (1) by rotating it at a predetermined angle about the central axis (79).

In addition, the power unit (drive unit) includes a main driving motor 501 , a driving pulley 85 , and a gear unit 500 .

First, the main driving motor 501 is a device for generating power, and it is preferable to use a servo motor to prevent a large load from being applied in a high-speed production mode as well as a low-speed production mode, and to facilitate speed control.

The driving pulley 85 is connected to the main driving motor 501 by a timing belt 86 to receive power.

The driving pulley 85 uses the power of the main driving motor 501 to generate a nose cord cutting roller 330 and a nose cord transfer roller 320, a fusion mold roller 410, a fabric transfer roller 75, and a fabric cutting roller 71 ) may be installed on the top of the front base frame 11 to provide.

The gear unit 500 is installed on the support brackets 61 and 65, and consists of a plurality of gear trains installed to be interlocked with the driving gear 85a of the driving pulley 85.

Hereinafter, the configuration and operation of the gear unit 500 will be described in detail with reference to FIGS. 7, 10, 11 and 12 .

The gear unit 500 is installed on the rotating shaft of the fabric cutting roller 71 so as to be tooth-engaged (engaged) with the driving gear 85a of the driving pulley 85 to receive power, and a double gear 600 for preventing backlash ) a first gear 510 disposed to be meshed; a second gear 520 installed on the rotating shaft of the fabric transfer roller 75 and disposed to be meshed with the double gear 600 for preventing backlash; The third gear 530 is installed on the rotation shaft of the fusion mold roller 410 and is meshed with the plurality of relay gears G1, G2, G3 to receive the rotational force of the second gear 520; a fourth gear 540 installed on the rotation shaft of the nose pad cutting roller 330; a fifth gear 550 installed on the rotating shaft of the nose rod transfer roller 320 and being teeth-engaged with a plurality of relay gears G4 and G5 to receive the rotational force of the fourth gear 540; and an auxiliary power transmission unit 560 for transmitting the rotational force of the second gear 520 to the fourth gear 540 ; includes

The first gear 510 is installed concentrically (same axis) to the fabric cutting roller 71, and the second gear 520 is installed concentrically to the fabric transport roller 75, and the third gear 530 is installed concentrically to the fusion mold roller 410 , the fourth gear 540 is installed concentrically to the nose pad cutting roller 330 , and the fifth gear 550 is concentric to the nose pad transfer roller 320 . is configured to be installed.

Looking at the operation of the gear unit 500 , the driving gear 85a of the driving pulley 85 rotates by receiving power from the main driving motor 501 through the timing belt 86 .

Then, the first gear 510 meshed with the driving gear 85a rotates, and the second gear 520 and the third gear 530 meshed with the first gear 510 rotate, so that the fabric cutting roller (71) and the fabric transfer roller 75 is to cut and transfer the fabric (1) while rotating. At this time, the backlash phenomenon occurring when the first gear 510 , the second gear 520 , and the third gear 530 meshes is prevented by the double gear 600 for preventing the backlash.

The auxiliary power transmission unit 560 may include a driving pulley 561 installed concentrically to the second gear 520; a driven pulley 562 installed concentrically to the fourth gear 540; a timing belt 563 connecting the driving pulley 561 and the driven pulley 562; a tension roller 564 for maintaining the tension of the timing belt 563; and a power lock 565 installed on the driven pulley 562 ; includes

When setting the distal position of the mask, that is, the nose bridge position, the fusion position, and the cutting position must be accurately set to produce a good quality mask body. The power lock 565 does not require a key and does not move or separate the gear train. The operation is very easy because the position of the mask body 5 can be accurately set by turning the fabric cutting roller 71 and the fabric transfer roller 75 arbitrarily.

In addition, the double gear 600 for preventing backlash is installed on the rear support bracket 12 to prevent backlash of the gear train and is meshed with the gear train, and consists of a pair of a first gear 510 and a second gear ( 520) is arranged to mesh.

Hereinafter, the configuration and operation of the double gear 600 for preventing backlash will be described in detail with reference to FIGS. 11 and 23 to 26 .

The anti-backlash double gear 600 includes a first anti-backlash gear 610 with teeth formed on the outer periphery; A second anti-backlash gear 620 concentrically fastened to the first anti-backlash gear 610 in a state in which the teeth are disposed on the outer periphery so as to deviate from the teeth of the first anti-backlash gear 610; and a bolt 630 for fastening the first anti-backlash gear 610 and the second anti-backlash gear 620 ; includes

The first anti-backlash gear 610 is rotatably supported on the bearing 650 on the shaft 640, and the second anti-backlash gear 620 is a bolt 630 on the front surface of the first anti-backlash gear 610. It is configured to be fastened, and at this time, the respective teeth are engaged to be shifted from each other. The position of the teeth can be adjusted by adjusting the bolt 630 .

By adjusting the bolt 630 to fasten the first anti-backlash gear 610 and the second anti-backlash gear 620, by displacing the teeth of each other, the first gear 510 and the second gear 520 It is possible to effectively prevent the tolerance occurring during meshing, that is, the backlash phenomenon.

That is, the backlash is a gap (tolerance) made in the direction of motion in mechanical devices such as gears that interlock with each other, and the gap allows the gears to move freely. However, since backlash is enlarged by gear wear, this causes vibration or noise and reduces the lifespan of the machine, and the number of revolutions of the fabric cutting roller and the fabric feed roller is changed, so that the width (length of the mask) ) is unevenly produced.

In order to solve this problem, in the present embodiment, the backlash phenomenon occurring when the first gear 510 , the second gear 520 , and the third gear 530 are meshed is prevented by the double gear 600 for preventing the backlash. By doing so, the number of rotations of the fabric cutting roller and the fabric feeding roller is varied, and eventually, all the conventional problems in which the width (length) of the mask is produced non-uniformly can be solved. It is possible to produce high-quality masks by accurately setting the welding and cutting positions.

In addition, the control panel 80 (refer to FIG. 7) drives the main driving motor 501 to supply the fabric 1, inserts the nose pad 3 into the fabric 1, and then fuses to manufacture a mask body. It serves to automatically control a series of processes. Furthermore, the control panel 80 controls a series of processes of the ear band fusion process.

The control panel 80 is a control device composed of a programmable logic controller (PLC), and is equipment used for program control.

The control panel 80 is suitable for a control system according to a multi-product small-volume production system, and a memory capable of writing and storing control contents using digital or analog input/output modules and execution functions such as relays, timers, counters, and arithmetic functions. As a digitally operated electronic device to be used, the program controls not only the welding process but also the entire mask production process.

On the other hand, Figure 27 is a front view showing the ear band attachment device of the high-speed mask manufacturing system according to the present invention, Figure 28 is an enlarged view of the main part of Figure 27, Figure 29 is a plan view of Figure 27, Figure 30 is the main part of Figure 29 An enlarged excerpt, Fig. 31 is a left side view of Fig. 27, showing an ear band supply unit, an ear band clamp unit and an ear band fusion unit, Fig. 32 is a plan view of Fig. 31, and Fig. 33 is an ear band fusion unit in Fig. 27 Figure 34 is a drawing showing the ear band clamp unit extracted from Figure 27, Figure 35 is a perspective view showing the ear band supply and transfer of the present invention, Figure 36 is the transfer of the ear band of the present invention, A perspective view showing the state just before clamping and cutting, FIG. 37 is a perspective view showing the ear band transport of the present invention, FIG. 38 is a perspective view showing the clamping and cutting state of the ear band of the present invention, and FIG. A perspective view showing a state after cutting, FIG. 40 is a perspective view showing a state in which the ear band clamper of the present invention is rotated by 90°, and FIG. It is put on the fusion part of the mask body and is a perspective view showing the state in which the fusion punch is fused, FIG. 42 is a perspective view showing the completion of fusion of the ear band, and FIG. 43 is a perspective view showing the ear band cutting unit of the present invention.

First, referring to FIGS. 27 and 33 , the technical features of the ear band attachment device 2000 of the present invention is that the pressure reducing valve 2530 corresponds to the transport speed of the mask body 5 ( FIG. 1 ) during the ear band fusion process. ) by adjusting the pneumatic pressure of the fusion punch 2520 and precisely controlling the fusion gap (fusion pressure) of the fusion punch 2520 to prevent poor fusion of the ear band 6 (FIG. 1) even in high-speed production mode.

Referring to the above drawings, the configuration of the ear band attachment device 2000 of the present invention is as follows.

The ear band attachment device 2000 of the present invention includes a base frame 2010 installed on the ground (or bottom surface) (G); a mask body transfer tray 2020 that sequentially transfers the mask body 5 one by one while cyclically rotating in an independent orbit; The mask body transfer tray driving unit 2030, the mask body input unit 2040 for sequentially putting the mask body 5 on the upper surface of the mask body transfer tray 2020 one by one; an ear band supply unit 2100 for supplying the ear band 6; an ear band transfer unit 2200 for transferring the ear band 6 supplied from the ear band supply unit 2100 to the cutting position; a fixing bracket 2050 that is fixedly installed on the upper portion of the base frame 2010; an up-down movable bracket 2060 installed to be up-down on the lower portion of the fixing bracket 2050 by the guide bar 2061 ; an up-down cylinder 2070 installed on the fixing bracket 2050 to up-down the up-down movable bracket 2060; an ear band cutting unit 2300 for cutting the ear band 6 transferred to the cutting position to an appropriate size; an ear band clamp unit 2400 that picks up both ends of the ear band 6 cut to an appropriate size, rotates it 90°, and puts it on the fusion site of the mask body 5 ; an ear band fusion unit 2500 for fusing the ear band 6 placed on the fusion site of the mask body 5 to precisely control the fusion gap according to the feed speed of the mask body 5; And a control unit 2600 for controlling the fusion process of the ear band (6); includes

Hereinafter, the components of the ear band attachment device 2000 of the present invention will be described in more detail.

First, as shown in Figure 27, the base frame 2010 is installed on the ground (floor) (G), the lower portion of the base frame (2010) is a pedestal 2011 and wheels 2012 for movement are installed. can be

As shown in FIG. 27 , the mask body transport tray 2020 is installed on the upper portion of the base frame 2010 and serves to sequentially transfer the mask body 5 one by one while circulating in an independent orbit, and a conveyor belt structure can be composed of The rotation direction of the mask body transfer tray 2020 is the same as the transfer direction of the mask body.

As shown in FIG. 29 , a plurality of mask body accommodating parts 2021 for accommodating the mask bodies 5 one by one are formed on the upper surface of the mask body transfer tray 2020, and between the mask body accommodating parts 2021 A mask body stopper 2022 that prevents the flow of the mask body 5 may be formed to protrude upward.

Guide plates 2023 (see FIG. 41 ) for guiding the transfer of the mask body transfer tray 2020 may be installed on both sides of the mask body transfer tray 2020 .

As shown in FIG. 27 , the mask body transfer tray driving unit 2030 drives and rotates the mask body transfer tray 2020 .

The mask body transfer tray driving unit 2030 includes a plurality of pulleys 2031 meshed with the mask body transfer tray 2020 in order to rotate the mask body transfer tray 2020, and a driving motor 2032 for rotating the pulleys 2031 . ) can be provided.

As shown in FIG. 27 , the mask body input unit 2040 sequentially puts the mask body 5 into the mask body receiving part 2021 formed on the upper surface of the mask body transfer tray 2020 one by one. A detailed description of the configuration of the mask body input unit 2040 will be omitted.

In addition, as shown in FIGS. 27 and 29 , the ear band supply unit 2100 is for supplying the ear band 6 to the ear band transfer unit 2200 side, and may be installed on the upper side of the base frame 2010 . have.

The ear band supply unit 2100 always keeps the tension of the ear band 6 constant so that the ear band 6 does not sag. That is, the ear band 6 is always supplied in a state in which constant tension is maintained. The guide roller R serves to guide the ear band 6 and guides the ear band 6 to be introduced into the holder 2210 to be described later.

In addition, as shown in FIGS. 35 to 37 , the ear band transfer unit 2200 serves to transfer the ear band 6 supplied from the ear band supply unit 2100 to the cutting position.

Here, the cutting position refers to a position where the cutter 2340 of the ear band cutting unit 2300 operates to cut the ear band 6 to a predetermined size.

The ear band transfer unit 2200 includes a holder 2210 for selectively holding the end of the ear band 5 supplied by the ear band supply unit 2100; a transfer guide rail 2220 installed in the front-rear direction on the upper surface of the base frame 2010; an ear band pulling finger 2230 which is installed movably in the forward and backward directions along the transport guide rail 2220 and pulls the ear band 6 held by the holder 1210; an ear band pulling finger moving belt 2240 connected to the ear band pulling finger 2230 to move the ear band pulling finger 2230 in the front and rear directions along the transport guide rail 2220; a moving belt pulley 2250 for rotating the ear band pulling finger moving belt 2240; and a driving motor 2260 for rotating the moving belt pulley 2250; to provide

When explaining the components of the ear band transfer unit 2200 in more detail, first, the holder 2210 holds the end of the ear band 5 supplied by the ear band supply unit 2100 while guiding and holding the ear band. Release the ear band 5 at the moment the pulling finger 2230 pulls the ear band 6 on. At this time, the ear band pulling finger 2230 grabs the ear band 6 and transfers the ear band 6 to the cutting position while moving forward and backward along the transport guide rail 2220 .

The transfer of the ear band pulling finger 2230 is performed by the power of the driving motor 2260 . That is, the moving belt pulley 2250 is rotated by the power of the driving motor 2260 to rotate the ear band pulling finger moving belt 2240, and the ear band pulling finger moving belt 2240 is the ear band pulling The finger 2230 is to be transferred.

In addition, the fixing bracket 2050 is fixedly installed on the upper portion of the base frame 2010, and the up-down movable bracket 2060 is installed on the lower portion of the fixing bracket 2050 to be up-down by the guide bar 2061 . An up-down cylinder 2070 is installed in the fixing bracket 2050 to up-down the up-down movable bracket 2060 .

In addition, as shown in FIGS. 36, 38, 41, and 43, the ear band cutting unit 2300 cuts (cuts) the ear band 6 transferred to the cutting position to an appropriate size. .

The ear band cutting unit 2300 includes an eccentric cam 2310 that rotates eccentrically; An eccentric cam driving unit 2320 for rotating the eccentric cam 2310; a connecting rod 2330 connected to the eccentric cam 2310 to convert the rotational motion of the eccentric cam 2310 into a vertical linear motion; And a cutter 2340 for cutting the ear band 6 by the vertical linear motion of the connecting rod 2330; includes

In the ear band cutting unit 2300 , the eccentric cam driving unit 2320 is driven to rotate the eccentric cam 2310 eccentrically. The connecting rod 2330 moves up and down by the eccentric rotation of the eccentric cam 2310 , and the cutter 2340 operates by the up and down linear motion of the connecting rod 2330 to cut the ear band 6 .

In addition, as shown in FIGS. 34, 36 and 38 to 41 , the ear band clamp unit 2400 grabs both ends of the ear band 6 cut to an appropriate size and rotates 90° to rotate the mask body 5 ) to put it on the fusion site.

The ear band clamp unit 2400 includes a servomotor 2410 for providing a rotational force; and the servomotor 2410 rotatably installed at 90°, pick up both ends of the ear band 6 cut by the ear band cutting unit 2300 and rotate 90° to the fusion site of the mask body 5 resting ear band clamper 2420; includes

In the ear band clamp unit 2400, the up-down cylinder 2070 operates to adjust the vertical height of the ear band clamper 2420, and the ear band clamper 2420 is an ear cut by the ear band cutting unit 2300. It functions to hold both ends of the band 6 , and the servo motor 2410 rotates the ear band clamper 2420 by 90° to put both ends of the ear band 6 on the fusion site of the mask body 5 . .

In addition, referring to FIGS. 41 and 42 , the ear band fusion unit 2500 precisely controls the fusion gap according to the feed speed of the mask body 5 and puts the ear band on the fusion site of the mask body 5 . (6) It functions to fuse.

The ear band fusion unit 2500 is installed under the up-down movable bracket 2060, and a pneumatic cylinder 2510 operated using pneumatic pressure; A fusion punch 2520 installed in the pneumatic cylinder 2510 to fuse the band 6 on both sides of the mask body 5 ; and a pressure reducing valve 2530 for adjusting the fusion gap of the fusion punch 2520 by adjusting the air pressure supplied to the pneumatic cylinder 2510; includes

According to the low-speed production mode or the high-speed production mode, the welding gap (fusion pressure) of the fusion punch 2520 must be adjusted to prevent fusion defects. In the ear band fusion unit 2500 , the user By adjusting the pneumatic pressure supplied to the pneumatic cylinder 2510 by appropriately adjusting the preset pressure reduction or pressure value, the fusion gap of the fusion punch 2520 is adjusted according to the production mode during the ear band fusion process. It is possible to effectively prevent fusion defects.

The operation of the entire ear band attachment device 2000 of the present invention configured as described above will be described.

First, the mask body transfer tray driving unit 2030 is driven to rotate the mask body transfer tray 2020 . At this time, the driving motor 2032 rotates the pulley 2031 and rotates the mask body transfer tray 2020 in the direction of the arrow by the rotation of the pulley 2031 .

At the same time, the mask body input unit 2040 sequentially puts the mask body 5 into the mask body receiving part 2021 of the mask body transfer tray 2020 one by one. At this time, the mask body stopper 2022 prevents the movement of the mask body 5 so that it is placed in an accurate position.

The mask body transfer tray 2020 rotates in an independent orbit while sequentially transferring the mask bodies 5 one by one while supplying them to the fusion process. And the ear band supply unit 2100 supplies the ear band 6 .

The ear band transfer unit 2200 transfers the ear band 6 supplied from the ear band supply unit 2100 to the cutting position.

The ear band cutting unit 2300 cuts the ear band 6 transferred to the cutting position to an appropriate size. The ear band clamp unit 2400 holds both ends of the ear band 6 cut to an appropriate size and puts it on the fusion site of the mask body 5 .

The ear band fusion unit 2500 fuses the ear band 6 placed on the fusion site of the mask body 5 to precisely control the fusion gap according to the feed speed of the mask body 5 .

The user adjusts the air pressure of the pressure reducing valve 2530 in accordance with the transport speed of the mask body 5 during the ear band fusion process. For example, by lowering the pressure in the low-speed production mode and increasing the pressure in the high-speed production mode to precisely control the fusion gap of the fusion punch 2520, the fusion of the ear band 6 in the high-speed production mode as well as in the low-speed production mode to effectively prevent defects.

On the other hand, the operation of the ear band transfer unit 2200 will be described in more detail.

35 to 37 , the ear band transfer unit 2200 transfers the ear band 6 supplied from the ear band supply unit 2100 to the cutting position. That is, the holder 2210 holds the end of the ear band 5 supplied by the ear band supply unit 2100 while guiding it, and the moment the ear band pulling finger 2230 pulls the ear band 6 Then put the band (5).

At this time, the ear band pulling finger 2230 grabs the ear band 6 and transfers the ear band 6 to the cutting position while moving forward and backward along the transport guide rail 2220 .

The transfer of the ear band pulling finger 2230 is performed by the power of the driving motor 2260, and the moving belt pulley 2250 is rotated by the power of the driving motor 2260 to rotate the ear band pulling finger moving belt 2240. ) is rotated, and the ear band pulling finger moving belt 2240 transfers the ear band pulling finger 2230 .

In addition, the operation of the ear band cutting unit 2300 will be described in more detail.

36, 38, 39, and 43, the ear band cutting unit 2300 cuts the ear band 6 transferred to the cutting position to an appropriate size. That is, the eccentric cam driving unit 2320 is driven to rotate the eccentric cam 2310 eccentrically. The connecting rod 2330 moves up and down by the eccentric rotation of the eccentric cam 2310 , and the cutter 2340 operates by the up and down linear motion of the connecting rod 2330 to cut the ear band 6 .

In addition, the operation of the ear band clamp unit 2400 will be described in more detail.

Referring to FIGS. 34 and 36 to 41 , the ear band clamp unit 2400 picks up both ends of the ear band 6 cut to an appropriate size and places it on the fusion site of the mask body 5 . That is, the ear band clamper 2420 holds both ends of the ear band 6 cut by the ear band cutting unit 2300, and the up-down cylinder 2070 operates to adjust the vertical height of the ear band clamper 2420, , the servomotor 2410 rotates the ear band clamper 2420 by 90° to put both ends of the ear band 6 on the fusion site of the mask body 5 .

In addition, the operation of the ear band fusion unit 2500 will be described in more detail.

31 , 33 , 41 , and 42 , the ear band fusion unit 2500 is located at the fusion site of the mask body 5 to precisely control the fusion gap corresponding to the feed speed of the mask body 5 . put it on That is, the up-down cylinder 2070 operates to move the up-down movable bracket 2060 from above to the bottom, and at this time, the pneumatic cylinder 2510 installed under the up-down movable bracket 2060 also moves.

The fusion punch 2520 installed in the pneumatic cylinder 2510 fuses the ear band 6 placed on the fusion part of the mask body 5 . At this time, since the transport speed of the mask body 5 varies according to the low-speed production mode or the high-speed production mode, the operator adjusts the fusion pressure by increasing or decreasing the air pressure of the pressure reducing valve 2530 according to the production mode.

For example, in the high-speed production mode, the ear band 6 placed on the fusion site of the mask body 5 is precisely controlled by a method of reducing the fusion gap corresponding to the feed speed of the mask body 5 by fusion, In the high-speed production mode, there is no fusion defect in the ear band and mass production of masks is possible.

As described above, the present invention has the following effects.

First, during the fusion process of the ear band, the user adjusts the pressure reducing valve to match the transfer speed of the mask body to precisely control the fusion pressure of the fusion punch. It has the advantage that defects do not occur.

Second, during the mask body manufacturing process, the pressing force of the ultrasonic welding machine is programmed to correspond to the feed speed of the fabric, and the ultrasonic welding machine is fused with a precise pressing force according to the programming. can

The terms or words used in the present specification and claims described above should not be construed as being limited to conventional or dictionary meanings, and the inventors have appropriate concepts of terms to describe their invention in the best way. It should be interpreted as meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined in

Therefore, the embodiments described in this specification and the configurations shown in the drawings are only the most preferred embodiment of the present invention, and do not represent all of the technical spirit of the present invention. It should be understood that there may be equivalents and variations.

1: Fabric
2: fusion part
3: Nose pad (nose line)
5: Mask body
6: ear band
7: Mask (finished product)
10: base frame
11: Front base frame
12: rear base frame
13: pedestal
14: wheel (wheel)
20: fabric supply unit
21: drum shaft
22: drum chuck
23: fabric drum
30: nose pad supply unit
31: nose drum winding drum
32: Nose winding drum support bracket
33: nose tube guide tube
40: fabric guide roller
50: wrinkle forming unit
51: pleated roller
52: wrinkle pressing part
61: front support bracket
65: rear support bracket
71: fabric cutting roller
71a: rotation axis of the fabric cutting roller
75: fabric feed roller
72, 76, 411: Knob for adjusting the gap
75a: rotation axis of the fabric feed roller
77: fine adjustment roller
78: knob
79: central axis
85: drive pulley
85a: drive gear of the drive pulley
86: timing belt
91: fabric guide plate
92: guide sidewall
100: fabric tension control unit
110: variable signal generator
113: arm rotation axis
114: outer diameter detection roller
115: arm
116: variable resistance
117: coupling
118: stopper bolt
120: powder brake
130: control unit
200: fabric eccentricity adjustment unit
210: fabric eccentricity adjustment body
220: inclined shaft
230: roller support plate
240: fabric eccentricity adjustment roller
250: eccentric sensor
260: eccentricity adjustment control unit
300: nose molding unit
310: nose rod guide plate
320: nose rod transfer roller
330: nose cutting roller
340: nose pad pressure plate
400: fabric fusion unit
410: fusion mold roller
420: up-down guide bracket
430: slider
440: welding machine
450: pneumatic cylinder
460: load cell
470: blower for dust prevention
480: cooling fan
500: gear unit
501: main drive motor
510: first gear
520: second gear
530: third gear
330a: rotation shaft of the nose rod cutting roller
540: fourth gear
320a: rotation shaft of the nose rod feed roller
550: fifth gear
560: auxiliary power transmission unit
561: drive pulley
562: driven pulley
563: timing belt
564: tension roller
565: power lock
600: double gear to prevent backlash
610: first anti-backlash gear
620: second anti-backlash gear
630: bolt
G1, G2, G3, G4, G5: relay gear
1000: High-speed mask body manufacturing apparatus of the mask high-speed manufacturing system of the present invention
2000: Ear band attachment device of the mask high-speed manufacturing system of the present invention
2510: pneumatic cylinder
2520: Fusion Punch
2530: pressure reducing valve
2300: ear band cutting unit
2400: ear band clamp unit
2500: ear band fusion unit
2010: base frame
2020: Mask Body Transfer Tray
2030: mask body transfer tray driver
2040: mask body input unit
2100: ear band supply unit
2200: ear band transfer unit
2050: fixed bracket
2061: guide bar
2060: Up-Down Movable Bracket
2070: up-down cylinder
2021: Mask body receptacle
2022: Mask Body Stopper
2030: mask body transfer tray driver
2031: pulley
2032: drive motor
2200: ear band transfer unit
2210: holder
2220: transport guide rail
2230: ear band pulling finger
2240: ear band pulling finger transfer belt
2250: moving belt pulley
2260: drive motor
2310: eccentric cam
2320: eccentric cam driving unit
2330: connecting rod
2340: cutter
2410: servo motor
2420: ear band clamper
2510: pneumatic cylinder
2520: Fusion Punch
2530: pressure reducing valve

Claims (13)

A high-speed mask body manufacturing apparatus 1000 for manufacturing the mask body 5 by cutting and fusing the fabric 1; and an ear band attachment device 2000 for attaching ear bands 6 to both sides of the mask body 5 manufactured by the high-speed mask body manufacturing apparatus 1000; In the mask (7) manufacturing system comprising:
The ear band attachment device 2000,
a pneumatic cylinder 2510 operating using pneumatic pressure;
a fusion punch 2520 installed in the pneumatic cylinder 2510 to fuse the ear band 6 on both sides of the mask body 5; and
a pressure reducing valve 2530 for adjusting the fusion gap of the fusion punch 2520 by adjusting the air pressure supplied to the pneumatic cylinder 2510; A mask manufacturing system comprising a. According to claim 1,
During the ear band fusion process, the pneumatic pressure of the pressure reducing valve 2530 is adjusted according to the feed speed of the mask body 5 and the fusion gap of the fusion punch 2520 is precisely controlled, so that even in the high-speed production mode, the ear A mask manufacturing system, characterized in that it prevents fusion defects of the band (6). According to claim 1,
The ear band attachment device 2000,
an ear band cutting unit 2300 for cutting the ear band 6 transferred to the cutting position to an appropriate size;
an ear band clamp unit 2400 that picks up both ends of the ear band 6 cut to an appropriate size and puts them on the fusion site of the mask body 5; and
an ear band fusion unit 2500 for fusing the ear band 6 placed on the fusion site of the mask body 5 to precisely control the fusion gap corresponding to the feed speed of the mask body 5; A mask high-speed manufacturing system comprising a. 4. The method of claim 3,
The ear band attachment device 2000,
Base frame installed on the ground (2010);
a mask body transfer tray 2020 installed on the base frame 2010 to sequentially transfer the mask body 5 one by one while cyclically rotating in an independent orbit;
a mask body transfer tray driving unit 2030 for driving the mask body transfer tray 2020;
a mask body input unit 2040 for sequentially putting the mask body 5 on the upper surface of the mask body transfer tray 2020 one by one;
an ear band supply unit 2100 for supplying the ear band 6;
an ear band transfer unit 2200 for transferring the ear band 6 supplied from the ear band supply unit 2100 to a cutting position;
a fixing bracket 2050 that is fixedly installed on the upper portion of the base frame 2010;
an up-down movable bracket 2060 installed in an up-down manner at a lower portion of the fixing bracket 2050 by a guide bar 2061 ; and
an up-down cylinder 2070 installed on the fixing bracket 2050 to up-down the up-down movable bracket 2060; Mask high-speed manufacturing system further comprising. 5. The method of claim 4,
A plurality of mask body accommodating parts 2021 for accommodating the mask bodies 5 one by one are formed on the upper surface of the mask body transfer tray 2020, and the mask body 5 is disposed between the mask body accommodating parts 2021. A mask high-speed manufacturing system, characterized in that a mask body stopper (2022) that prevents the flow of is formed. 5. The method of claim 4,
The mask body transfer tray driving unit 2030,
a plurality of pulleys 2031 meshed with the mask body transport tray 2020 to rotate the mask body transport tray 2020; and
a driving motor 2032 for rotating the pulley 2031; A mask high-speed manufacturing system comprising a. 5. The method of claim 4,
The ear band transfer unit 2200 is,
a holder 2210 selectively holding the end of the ear band 5 supplied by the ear band supply unit 2100;
a transport guide rail 2220 installed in the front-rear direction on the upper surface of the base frame 2010;
an ear band pulling finger 2230 installed to be movable in the front and rear directions along the transport guide rail 2220 and pulling the ear band 6 held by the holder 1210;
an ear band pulling finger moving belt (2240) connected to the ear band pulling finger (2230) to move the ear band pulling finger (2230) in the front-rear direction along the transport guide rail (2220);
a moving belt pulley 2250 for rotating the ear band pulling finger moving belt 2240; and
a driving motor 2260 for rotating the moving belt pulley 2250; A mask high-speed manufacturing system comprising a. 5. The method of claim 4,
The ear band cutting unit 2300,
An eccentric cam (2310) for eccentric rotation;
an eccentric cam driving unit 2320 for rotating the eccentric cam 2310;
a connecting rod 2330 connected to the eccentric cam 2310 to convert the rotational motion of the eccentric cam 2310 into a vertical linear motion; and
a cutter 2340 for cutting the ear band 6 by vertical linear motion of the connecting rod 2330; A mask high-speed manufacturing system comprising a. 5. The method of claim 4,
The ear band clamp unit 2400 is,
Servo motor 2410 for providing rotational force; and
An ear band rotatably installed by 90° by the servo motor 2410 and placed on the fusion site of the mask body by picking up both ends of the ear band 6 cut by the ear band cutting unit 2300 . clamper 2420; A mask high-speed manufacturing system comprising a. 5. The method of claim 4,
The ear band fusion unit 2500 is,
a pneumatic cylinder 2510 installed under the up-down movable bracket 2060 and operated using pneumatic pressure;
a fusion punch 2520 installed in the pneumatic cylinder 2510 to fuse the ear band 6 on both sides of the mask body 5; and
a pressure reducing valve 2530 for adjusting the fusion gap of the fusion punch 2520 by adjusting the air pressure supplied to the pneumatic cylinder 2510; A mask high-speed manufacturing system comprising a. In the ear band attachment device for attaching the ear band (6) to both sides of the mask body (5) transferred by the mask body transfer tray (2020),
a pneumatic cylinder 2510 operating using pneumatic pressure; a fusion punch 2520 installed in the pneumatic cylinder 2510 to fuse the ear band 6 on both sides of the mask body 5; and a pressure reducing valve 2530 for adjusting the fusion gap of the fusion punch 2520 by adjusting the air pressure supplied to the pneumatic cylinder 2510; including,
During the ear band fusion process, the pneumatic pressure of the pressure reducing valve 2530 is adjusted according to the feed speed of the mask body 5 and the fusion gap of the fusion punch 2520 is precisely controlled so that the ear band ( 6) Ear band attachment device of the mask manufacturing system, characterized in that it prevents the fusion defect. 12. The method of claim 11,
The ear band attachment device 2000,
an ear band cutting unit 2300 for cutting the ear band 6 transferred to the cutting position to an appropriate size;
an ear band clamp unit 2400 that picks up both ends of the ear band 6 cut to an appropriate size and puts them on the fusion site of the mask body 5; and
an ear band fusion unit 2500 for fusing the ear band 6 placed on the fusion site of the mask body 5 to precisely control the fusion gap corresponding to the feed speed of the mask body 5; Ear band attachment device of the mask high-speed manufacturing system comprising a. 12. The method of claim 11,
The ear band attachment device 2000,
Base frame installed on the ground (2010);
a mask body transfer tray 2020 installed on the base frame 2010 to sequentially transfer the mask body 5 one by one while cyclically rotating in an independent orbit;
a mask body transfer tray driving unit 2030 for driving the mask body transfer tray 2020;
a mask body input unit 2040 for sequentially putting the mask body 5 on the upper surface of the mask body transfer tray 2020 one by one;
an ear band supply unit 2100 for supplying the ear band 6;
an ear band transfer unit 2200 for transferring the ear band 6 supplied from the ear band supply unit 2100 to a cutting position;
a fixing bracket 2050 that is fixedly installed on the upper portion of the base frame 2010;
an up-down movable bracket 2060 installed in an up-down manner at a lower portion of the fixing bracket 2050 by a guide bar 2061 ; and
an up-down cylinder 2070 installed in the fixing bracket 2050 to up-down the up-down movable bracket 2060; The ear band attachment device of the high-speed mask manufacturing system further comprising a.

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