KR20220063022A - appratus for controling lateral displacement for supplying mask fabric - Google Patents

Abstract

The present invention relates to a tension and positioning apparatus for mask fabric feeding and, more specifically, to a tension and positioning apparatus for mask fabric feeding, capable of feeding a fabric for mask production by a predetermined size for a mask to be produced by controlling tension and a position, and also, implementing roll-to-roll feeding with an adjusted position to lower the operation rate and defect rate. To achieve the purpose, in accordance with the present invention, the tension and positioning apparatus includes: a body; a guider provided in an upper part of the body to adjust the width displacement of a fabric; a displacement sensor provided in a front part of the body to sense the width displacement of the fabric; a first brake assistance roller provided in a rear part of the body to feed the fabric to the guider; and a position meandering roller provided in the front part of the body to transfer the fabric fed from the guider, forward.

Description

Tension and positioning device for supplying mask fabric {appratus for controlling lateral displacement for supplying mask fabric}

The present invention relates to a tension and positioning device for supplying a mask fabric, and more particularly, when supplying a fabric for mask manufacturing, the tension and position can be controlled to supply as much as the length of the manufactured mask, and the supplied position and position can be adjusted It relates to a tension and positioning device for supplying mask fabric that can reduce the operation rate and defect rate by realizing the rolled-to-roll supply.

In general, the roll to roll (R2R) process refers to raw materials used in paper companies, textile companies, printing companies, mask manufacturers, etc., that is, raw materials such as paper, fabric, coated paper, non-woven fabric, web, etc. Hereinafter, referred to as "web") refers to a process of storing raw materials stored in a roll form and continuously supplying them at high speed to a processing machine while unwinding the raw materials stored in the roll form.

On the other hand, in the roll-to-roll process, the movement displaced in the width direction of the web in the process of feeding the web centering on the unwinding roller, the conveying roller and the take-up roller is called the width direction displacement, and this width direction displacement is the tension acting on the material. and friction force.

In detail, the positional displacement in the width direction occurs as conditions such as temperature, humidity, tension, speed, etc. that the web receives while passing through a process of several steps such as printing, coating, drying, etc. change.

In addition, the web being transported may be displaced in the width direction due to various causes such as misalignment of rollers, change in diameter of roller, movement in the width direction of the web itself, and change in characteristics of the web itself.

In order to control the positional displacement in the width direction of the web as described above, in the prior art, when the displacement in the width direction occurs in the web, there is a system for controlling the displacement by changing the positional displacement in the width direction of the web by using a hydraulic or pneumatic cylinder, Such a conventional system has a disadvantage in that defective products frequently occur because the reaction speed is slow compared to the speed at which the web is supplied at a high speed.

So, in order to solve this problem, the technology described in Korean Patent No. 10-0954444 as shown in FIGS. 1 to 3 has been proposed, and the technical feature is that the moving direction of the horizontally transported web W is vertical. A first brake auxiliary roller 110 for switching upward; It is located in the upper space of the first brake auxiliary roller 110, and at the same time converts the traveling direction of the web (W) vertically upwardly transferred by the first brake auxiliary roller 110 to the horizontal direction and the web (W) ) correction guider 200 for correcting the moving direction, and for converting the conveying direction of the web (W) that has been corrected to a vertical downward direction; and a position meandering roller 120 located in the lower space of the correction guider 200, and for converting the moving direction of the web (W) vertically downward by the correction guider 200 to a horizontal direction; And, the correction guider 200, the guider frame 210; A positioning reference roller 222 installed at one end of the guider frame 210 and configured to convert the traveling direction of the web (W) transferred from the first brake auxiliary roller 110 to a horizontal direction; a correction roller 224 installed at the other end of the guider frame 210 and configured to convert the moving direction of the web (W) horizontally transferred by the positioning reference roller 222 to a vertical direction; It characterized in that it comprises a; guider frame rotating means 230 for rotating the guider frame 210 with the central portion of one end of the guider frame 210 as a central axis.

However, the technology described in Korean Patent Registration No. 10-0954444 has the advantage of controlling the width direction displacement of the web so that when the web is supplied abnormally due to the width direction displacement occurring in the web, it can be supplied normally, but in the situation If the tension is too strong or weak accordingly, defects may occur in the product, but there is a problem that cannot be solved.

That is, in the case of a mask, a non-woven fabric is used as a fabric. In the case of a non-woven fabric, since the elasticity is good, if the tension (tension) is changed, the fabric of the correct length cannot be supplied, so there is a problem that the defective rate of the product increases.

Korean Patent Registration 10-0954444 (Registered on April 15, 2010)

The present invention has been devised to solve the above problems, and an object of the present invention is to sense the tension of the fabric in real time when supplying a nonwoven fabric, which is a fabric used in mask manufacturing, in a roll-to-roll method, and a supply speed according to the tension value It is to provide a tension and positioning device for supplying the mask fabric that can reduce the defect rate of the product by controlling the elastic fabric to be supplied with a constant length as much as the mask length for a set time.

And, another object of the present invention is when supplying the mask fabric in a roll-to-roll method, when eccentric supply occurs due to non-uniformity of the entire fabric, tension and To provide a positioning device.

The present invention for solving these problems;

A main body, a guider provided on the upper part of the main body to adjust the displacement in the width direction of the supplied fabric, a displacement sensor provided on the front of the main body to detect the displacement in the width direction of the fabric, and the entire body provided in the It is characterized in that it comprises a position meandering roller for transferring the fabric supplied from the guider forward.

Here, the guider includes a rotating plate provided on the upper portion of the main body, a rotating shaft provided on a rear lower surface of the rotating plate and installed on the upper surface of the main body, and a fabric provided at the rear of the rotating plate and supplied from the first brake auxiliary roller It characterized in that it consists of a positioning reference roller for changing the moving direction of the horizontal direction, and a correction roller installed on the entirety of the rotating plate and supplying the fabric supplied from the positioning reference roller to the position meandering roller.

In addition, a compensating unit for controlling the rotation angle of the rotating plate according to the displacement in the width direction sensed by the displacement sensor is provided on the upper part of the main body, and the compensating unit includes a driving motor provided on the upper part of the main body, and the driving motor It characterized in that it consists of a drive gear rotating by the, a rack member installed on the front lower surface of the rotating plate, and a rack formed on the front surface of the rack member and moving left and right by the drive gear.

At this time, an arc-shaped guide groove is formed on the entire upper surface of the main body, and a support member inserted into the guide groove to support the entire rotation plate is installed on the entire lower surface of the rotation plate.

And, the rear portion of the main body is characterized in that the tension control unit for adjusting the tension of the fabric is further installed.

Here, the tension control unit is installed at the lower end of the rear part of the main body to receive a fabric supplied to the first brake auxiliary roller, and the first brake auxiliary roller is supplied with the fabric to supply the fabric to the guider The fabric made of a roller shape A powder brake comprising a breaker and a motor for adjusting the rotation speed of the fabric breaker according to the tension of the fabric, and a second brake auxiliary roller for changing the direction of the fabric supplied from the fabric breaker to the guider direction do.

At this time, a tension sensor for sensing the tension of the fabric is provided between the position meandering roller and the body, and a control unit is further provided in the body, wherein the control unit controls the powder break according to the tension sensed by the tension sensor It is characterized in that the rotation speed of the fabric breaker is adjusted.

According to the present invention of the above configuration, when the nonwoven fabric, which is a fabric used in mask manufacturing, is supplied in a roll-to-roll method, the fabric with elasticity is set by sensing the tension of the fabric in real time and adjusting the supply speed according to the tension value. It has the effect of reducing the defect rate of the product by allowing it to be supplied in a constant length as much as the mask length for a period of time.

In addition, the present invention has an effect of stably supplying the fabric by adjusting the supply direction when the mask fabric is supplied in a roll-to-roll method, when eccentric supply occurs due to the overall fabric non-uniformity.

1 is a perspective view of a conventional tension and positioning device for mask fabric supply.
2 and 3 are plan views showing the operation of the displacement control device of the distal end of the tension and positioning device for the conventional mask fabric supply.
4 is a plan conceptual view of a tension and positioning device for supplying a mask fabric according to the present invention.
5 is a side conceptual view of a tension and positioning device for supplying a mask fabric according to the present invention.
6 is a state diagram showing an operation for controlling the displacement in the width direction of the tension and positioning device for supplying the mask fabric according to the present invention.
7 is an enlarged view of the correction unit of the tension and positioning device for supplying the mask fabric according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings. The same reference numerals are used for the same components in the drawings, and repeated descriptions of the same components are omitted. And, it should be understood that the present invention may be implemented in many different forms and is not limited to the described embodiments.

4 is a plan conceptual view of a tension and positioning device for supplying a mask fabric according to the present invention, FIG. 5 is a side conceptual diagram of a tension and positioning device for supplying a mask fabric according to the present invention, and FIG. 6 is a mask according to the present invention It is a state diagram showing the operation for controlling the displacement in the width direction of the tension and positioning device for supplying the fabric, and FIG. 7 is an enlarged view of the correction unit of the tension and positioning device for supplying the mask fabric according to the present invention.

The present invention stores raw materials such as paper, fabric, coated paper, web, etc. in roll form to manufacture masks, etc. It relates to a tension and positioning device, and as shown in FIGS. 4 to 6 , the configuration is a main body 300 and a guider 400 provided on the upper portion of the main body 300 to adjust the displacement in the width direction of the supplied fabric and A displacement sensor 340 provided on the front of the main body 300 to detect the width direction displacement of the fabric and a position meander provided on the front of the main body 300 to transport the fabric supplied from the guider 400 forward It is made to include a roller (320).

That is, when the fabric is continuously supplied to the mask manufacturing machine, if the displacement in the width direction of the fabric is changed, the quality of the manufactured product may deteriorate. The width direction of the fabric supplied through the displacement sensor 340 and the guider 400 When an abnormality occurs in displacement, it is quickly corrected and the quality of the manufactured product is prevented from being deteriorated.

In addition, the guider 400 includes a rotating plate 410 rotatably provided on the upper portion of the main body 300 , a positioning reference roller 420 installed at the rear of the rotating plate 410 , and all of the rotating plate 410 . It consists of a correction roller 430 installed on the.

Here, the rotating plate 410 may be formed in a plate shape as a whole or a frame, and an upper portion of the rotating shaft 440 installed in the main body 300 is connected to the rear lower surface of the rotating shaft 440 . ), a bearing (not shown) is provided on the outer side of the upper end to rotate easily.

At this time, the positioning reference roller 420 installed at the rear of the rotating plate 410 changes the direction of the supplied fabric to the horizontal direction in which the correction roller 430 is located, and the correction roller 430 is the positioning reference The fabric is supplied from the roller 420 and supplied to the position meandering roller 320 provided under the front end of the main body 100 .

On the other hand, the upper portion of the main body 300 is provided with a correction unit 500 for controlling the rotation angle of the rotating plate 410 according to the displacement in the width direction sensed by the displacement sensor 340 .

Here, the compensating unit 500 includes a driving motor 510 provided to be positioned in front of the upper portion of the main body 300 and a driving gear 520 rotating by the driving motor 510 and the rotating plate 410 . It consists of a rack member 530 installed on the entire lower surface and a rack 532 formed on the front side of the rack member 530 .

At this time, the rack 532 is formed in an arc shape based on the rotation shaft 440 installed on the rear lower surface of the rotating plate 410, and comes in contact with the driving gear 520 and left and right by the rotation of the driving motor 510. will move to

A control unit (not shown) is provided inside the main body 300 , and the control unit compares and supplies the width direction displacement information of the far end received from the displacement sensor 340 with the width direction displacement information in a normal state. The driving motor 510 is controlled by calculating the direction and angle to rotate the guider 400 in order to normalize the displacement in the width direction of the fabric.

Here, an arc-shaped guide groove 330 is formed on the entire upper surface of the main body 300 with respect to the rotation shaft 440 , and the entire lower surface of the rotation plate 410 is inserted into the guide groove 330 . A support member 450 for supporting all of the rotating plate 410 is installed.

At this time, a support bracket 452 is installed on the front lower surface of the rotating plate 410 , and the support member 450 is installed at an end of the support bracket 452 , and the support member 450 is a friction material such as Teflon. It is made of a material having a low coefficient so that it can be easily rotated when the rotating plate 410 is rotated, and excessive rotation is prevented by the guide groove 330 .

On the other hand, the rear portion of the main body 300 is further provided with a tension control unit 600, the tension control unit 600 adjusts the tension of the supplied fabric within a certain range so that the quality of the product manufactured by the manufacturing apparatus is improved. to prevent deterioration.

Here, the tension control unit 600 is installed at the lower end of the rear portion of the main body 300 and receives the fabric from the first brake auxiliary roller 310 and the first brake auxiliary roller 310 to receive the fabric and the guider The powder brake 620 and the fabric breaker comprising a fabric breaker 610 formed in a roller shape that supplies the fabric to be supplied to 400 and a motor controlling the rotation speed of the fabric breaker 610 according to the tension of the fabric It consists of a second brake auxiliary roller 630 that converts the direction of the fabric supplied in 610 to the guider 400 direction.

At this time, a tension sensor 640 is provided between the position meandering roller 320 and the body 300, and the position meandering roller 320 is formed to be movable back and forth, and the tension sensor 640 is a spring The position meandering roller 320 is spaced apart from the main body 300 by the tension of the fabric to sense the tension of the fabric.

In addition, the control unit (not shown) installed inside the main body 300 receives the tension sensed by the tension sensor 640 , and the control unit rotates the powder brake 620 according to the received tension. control the speed.

That is, the diameter of the fabric breaker 610 is formed to be larger than the first brake auxiliary roller 310 or the second brake auxiliary roller 630, and the tension of the fabric currently being supplied is higher than the normal tension of the set range. If it is large, the rotation speed of the powder brake 620 is increased so that the tension is within the normal range. Control to increase in range.

In this case, the method of controlling the rotation speed of the powder brake 620 controls the rotation speed by adjusting the voltage supplied according to the tension.

In addition, the gap between the first and second brake auxiliary rollers 310 and 630 is formed to be smaller than the diameter of the fabric breaker 610 to increase the contact area between the fabric breaker 610 and the fabric to prevent slip of the fabric.

Here, by forming a silicone coating layer (not shown) on the surface of the fabric breaker 610 to increase frictional force between the fabric and the fabric, the fabric does not slip according to the rotational speed of the fabric breaker 610. It can be supplied stably. let there be

On the other hand, although not shown in the drawing, a control panel (not shown) is further provided on one side of the main body 300 . The control panel is provided with buttons for setting various modes as well as an operation switch. It can be set to automatic mode to automatically control displacement or tension by controlling the buttons on the control panel, manual mode to manually control displacement or tension, and semi-auto mode in which one of the tension or displacement is manually performed and the other is automatically set. .

At this time, a pair of proximity sensors 350 are provided on the upper portion of the main body 300 spaced apart by a predetermined distance, and the proximity sensor 350 is a centering bolt 534 installed in the center of the rack member 530. It is installed to correspond to the guider 400, when the guider 400 rotates and returns, it is possible to detect the angle of the guider 400.

Accordingly, the proximity sensor 350 transmits the detected angle to the control unit, and the control unit can accurately control the rotation angle of the guider 400 through the received information, and further determines whether to return to the original position upon return. It can be checked so that the fabric can be fed normally after controlling the displacement.

Although preferred embodiments of the present invention have been described above, the scope of the present invention is not limited thereto, and the scope of the present invention extends to those substantially equivalent to the embodiments of the present invention. Various modifications are possible by those of ordinary skill in the art to which the invention pertains without departing from the scope of the invention.

The present invention relates to a tension and positioning device for supplying a mask fabric, and more particularly, when supplying a fabric for mask manufacturing, the tension and position can be controlled to supply as much as the length of the manufactured mask, and the supplied position and position can be adjusted It relates to a tension and positioning device for supplying mask fabric that can reduce the operation rate and defect rate by realizing the rolled-to-roll supply.

300: body 310: first brake auxiliary roller
320: position meander roller 330: guide groove
340: displacement sensor 350: proximity sensor
400: guider 410: rotating plate
420: positioning reference roller 430: correction roller
440: rotation shaft 450: support member
500: correction unit 510: drive motor
520: drive gear 600: tension control unit
610: fabric breaker 620: powder break
630: second brake auxiliary roller

Claims (7)

body and
a guider provided on the upper part of the main body to adjust the displacement in the width direction of the supplied fabric;
a displacement sensor provided on the entire body of the body to detect displacement in the width direction of the fabric;
Tension and positioning device for mask fabric supply, characterized in that it is provided on the whole of the main body and comprises a position meandering roller for transferring the fabric supplied from the guider to the front.
According to claim 1,
The guider includes a rotating plate provided on the upper portion of the main body;
a rotating shaft provided on the rear lower surface of the rotating plate and installed on the upper surface of the main body;
A positioning reference roller installed at the rear of the rotating plate to change the moving direction of the supplied fabric to a horizontal direction;
A tension and positioning device for mask fabric supply, characterized in that it is installed on all of the rotating plate and comprises a correction roller for supplying the fabric supplied from the positioning reference roller to the position meandering roller.
3. The method of claim 2,
A correction unit for controlling the rotation angle of the rotating plate according to the width direction displacement of the fabric sensed by the displacement sensor is provided on the upper part of the main body,
The compensating unit includes a driving motor provided on an upper portion of the main body;
a driving gear rotated by the driving motor;
a rack member installed on the entire lower surface of the rotating plate;
A tension and positioning device for supplying a mask fabric, characterized in that it is formed on the front surface of the rack member and comprises a rack moving left and right by the driving gear.
3. The method of claim 2,
An arc-shaped guide groove is formed on the entire upper surface of the main body,
A tension and positioning device for supplying a mask fabric, characterized in that a support member inserted into the guide groove to support the entirety of the rotating plate is installed on the entire lower surface of the rotating plate.
According to claim 1,
A tension and positioning device for supplying a mask fabric, characterized in that a tension adjusting unit for adjusting the tension of the fabric is further installed at the rear of the main body.
6. The method of claim 5,
The tension control unit is installed at the lower end of the rear portion of the main body, and a first brake auxiliary roller to receive the fabric;
a fabric breaker having a roller shape that receives the fabric from the first brake auxiliary roller and supplies the fabric supplied to the guider;
A powder brake comprising a motor that adjusts the rotation speed of the fabric breaker according to the tension of the fabric;
A tension and positioning device for supplying a mask fabric, characterized in that it comprises a second brake auxiliary roller that converts the direction of the fabric supplied from the fabric breaker to the guider direction.
7. The method of claim 6,
A tension sensor for detecting the tension of the fabric is provided between the position meandering roller and the body,
The main body is further provided with a control unit, wherein the control unit controls the powder break according to the tension sensed by the tension sensor to adjust the rotation speed of the fabric breaker Tension and positioning device for mask fabric supply.

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