KR101641280B1

KR101641280B1 - Web-guide apparatus

Info

Publication number: KR101641280B1
Application number: KR1020160017154A
Authority: KR
Inventors: 이승현; 권신; 강동우; 이택민; 김광영
Original assignee: 한국기계연구원
Priority date: 2016-02-15
Filing date: 2016-02-15
Publication date: 2016-07-20

Abstract

The present invention provides a web guide device. According to an embodiment of the present invention, a support plate of a driving unit in the web guide device includes: a first sliding block arranged in a first reference position on the upper surface of the support plate of the driving unit and reciprocating in a horizontal direction orthogonal to a web moving direction; a second sliding block arranged at a second reference position separated as much as a first distance from the first reference position to the right upper side of a first moving direction of a web and reciprocating in a first extension direction in which the first reference position and the second reference position are extended; a third sliding block arranged at a third reference position separated as much as the first distance from the first reference position to the left upper side of the first moving direction of the web and reciprocating in a second extension direction in which the first reference position and the third reference position are extended; a fourth sliding block arranged at a fourth reference position separated as much as the second distance from the first reference position to the left lower side of the first moving direction of the web and reciprocating in a third extension direction in which the first reference position and the fourth reference position are extended; and a fifth sliding block arranged at a fifth reference position separated as much as the second distance from the first reference position to the right lower side of the first moving direction of the web and reciprocating in a fourth extension direction in which the first reference position and the fifth reference position are extended. According to an embodiment of the present invention, the web guide device has a bidirectional web guide function by being reset as only a fixed position by a fixing pin is changed even if a web moving direction is changed to an opposite direction.

Description

Web guide apparatus < RTI ID = 0.0 >

The present invention relates to a web guide device, and more particularly, to a bidirectional applicable web guide device capable of performing a web guide even if the traveling direction of the web is reversed.

In a roll-to-roll system that prints on a flexible substrate (hereinafter simply referred to as "web ") such as a film or paper wound in a roll form, The tension applied to the web becomes uneven and the movement path of the web tilts in the axial direction of the roller because of the eccentricity of the outer diameter of the roller due to the non-uniform or continuous abrasion. In order to prevent the web from being distorted and to stably perform the printing operation, a roll-to-roll system is provided with a plurality of web guide devices (also referred to as "meandering controllers" .

In the conventional web guide apparatus, the installation direction is determined according to the traveling direction of the web. One web guide device was able to guide the web only for one predetermined direction, and it could not control the meander when the web proceeded in the opposite direction. Therefore, in the prior art, when the direction of the web needs to be changed, two web guide devices for removing and reinstalling the entire web guide device or for controlling both directions are provided. However, there is a problem that the re-installation method after re-installation has a problem that the device reset time and effort are wasted due to the change of the web direction. In addition, when the two web guide devices are used, the cost of the web guide device is doubled.

Especially in the printing electronic process where web printing equipment is applied recently, multi-stage printing or coating process is required to make devices such as electronic devices and lighting, and accordingly, space-efficient arrangement of the internal parts of the equipment and selection of compact parts are essential. There is a need to solve the problem.

Patent Document 1: Korean Patent Laid-Open Publication No. 2015-0043672 (published on Apr. 23, 2015)

According to an embodiment of the present invention, there is provided a web guide apparatus capable of having all the functions of a two-way web guide by resetting the web guide apparatus by changing only the fixing position by the fixing pin even if the web traveling direction is changed in the opposite direction.

According to an embodiment of the present invention, a web guide device capable of reducing the volume of a device in half compared with a conventional web guide device for bidirectional skew control can be applied to bilateral steerable control of the web.

According to an embodiment of the present invention, there is provided a web comprising a roller supporting plate for supporting a pair of upper rollers spaced apart from each other by a predetermined distance along a web traveling direction, and a driving part supporting plate disposed at a predetermined distance below the roller supporting plate, A guide device comprising: a first sliding block disposed at a first reference position on a top surface of a driving support plate and reciprocating in a lateral direction perpendicular to a web traveling direction; A second reference position which is located at a second reference position spaced apart from the first reference position by a first distance to the right upstream side of the first traveling direction of the web and which is reciprocatable in a first extending direction extending from the first reference position to the second reference position A second sliding block; A third reference position spaced apart from the first reference position by a first distance to the left upstream side of the web in the first advancing direction and being reciprocatable in a second extending direction extending from the first reference position and the third reference position, A third sliding block; A second reference position, and a third reference position, the second reference position being located at a fourth reference position spaced a second distance from the first reference position to the left downstream side in the first direction of travel of the web, A fourth sliding block; And a fifth reference position spaced apart from the first reference position by a second distance to the right downstream side of the first traveling direction of the web, And a fifth sliding block, which is capable of sliding.

In one embodiment, the first, second, and third sliding blocks may engage the roller support plate, or the first, fourth, and fifth sliding blocks may be engaged with the roller support plate have.

In one embodiment, when the web advances in the first direction of travel, each of the first, second, and third sliding blocks is rotatably coupled to the lower surface of the roller support plate, respectively, and the fourth and fifth The sliding block is not engaged with the roller support plate.

In one embodiment, when the web proceeds in a second travel direction opposite to the first travel direction, each of the first, fourth, and fifth sliding blocks is rotatably engaged with the lower face of the roller support plate, And the second and third sliding blocks do not engage with the roller support plate.

In one embodiment, the first reference position may be the center point of the driver support plate, and the first distance and the second distance may be the same.

In one embodiment, the driving section support plate includes a linear motor; An actuator coupled to the linear motor; And a driving shaft connected to the actuator and integrally coupled to the first sliding block and disposed in the left and right direction, wherein the driving shaft and the first sliding block coupled to the driving shaft are moved in the left-right direction As shown in Fig.

In one embodiment, the driving section support plate includes: a first guide shaft passing through the second sliding block and disposed in the first extending direction; And a second guide shaft passing through the third sliding block and disposed in the second extending direction.

In one embodiment, the driving section support plate includes a third guide shaft passing through the fourth sliding block and disposed in the third extending direction; And a fourth guide shaft passing through the fifth sliding block and disposed in the fourth extending direction.

According to the embodiment of the present invention, even if the web traveling direction is changed in the opposite direction, the web guide device can be reset by changing only the fixed position by the fixing pin, There is an advantage that the device can be used.

According to the embodiment of the present invention, since it can be applied to all the meandering control of the bi-directional progression of the web, compared with the conventional technology in which the web guide device has to be provided one by one for bidirectional skew control, The number of web guide devices required can be reduced by half, thereby significantly reducing the overall system volume and installation cost.

1 is a perspective view showing a use state of a web guide apparatus according to an embodiment of the present invention,
2 is a perspective view of a web guide apparatus according to one embodiment,
3 is a front view of a web guide apparatus according to one embodiment,
4 is an exploded perspective view of a web guide apparatus according to an embodiment,
5 is a plan view showing an upper structure of a driving part support plate of a web guide device according to an embodiment,
6 and 7 are a plan view and a perspective view for explaining the operation of the web guide apparatus according to an embodiment when the web proceeds in the first direction,
8 and 9 are a plan view and a perspective view for explaining the operation of the web guide apparatus according to an embodiment when the web proceeds in the second direction,
10 is a view for explaining the arrangement relationship of the web guide apparatus and the edge detection sensor according to one embodiment according to the traveling direction of the web.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features, and advantages of the present invention will become more readily apparent from the following description of preferred embodiments with reference to the accompanying drawings. However, the present invention is not limited to the embodiments described herein but may be embodied in other forms. Rather, the embodiments disclosed herein are provided so that the disclosure can be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

In this specification, when an element is referred to as being on another element, it may be directly formed on another element, or a third element may be interposed therebetween. Further, in the drawings, the thickness of the components is exaggerated for an effective description of the technical content.

Where the terms first, second, etc. are used herein to describe components, these components should not be limited by such terms. These terms have only been used to distinguish one component from another. The embodiments described and exemplified herein also include their complementary embodiments.

The terms 'upper', 'lower', 'left', 'right', etc. used to describe the positional relationship between components in the present specification do not mean directions as absolute references, Can be defined as the relative position of the object. It will therefore be appreciated that the expressions representing the positional relationships referred to below may represent relative positional relationships in the respective drawings when described with reference to the respective drawings.

In the present specification, the singular form includes plural forms unless otherwise specified in the specification. The terms "comprise" and / or "comprising" used in the specification do not exclude the presence or addition of one or more other elements.

For convenience of explanation, it should be noted that each drawing does not show all the elements of the embodiment of the present invention, and some of the elements are omitted as necessary. For example, FIGS. 6 to 9 are views for explaining the relative movement of the drive support plate 20 and the roller support plate 50, and some components such as the upper roller 51 are omitted from the drawings for convenience of explanation. It will be appreciated by those skilled in the art that for convenience of description of the particular components, all components that make up the invention herein are not shown in all of the figures.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. 1 is a perspective view showing a use state of a web guide apparatus according to an embodiment of the present invention.

Referring to the drawings, a web guide apparatus 100 according to an embodiment may include two upper rollers 51 and two lower rollers 11. [ In the illustrated embodiment, the web W may advance in the direction of the arrow or in the direction opposite thereto. In the illustrated configuration, the web W is in contact with one of the lower rollers 11 and is in contact with two upper rollers 51 in turn after the conveying path is bent, and then in contact with the other lower roller 11 And then passes through the web guide apparatus 100.

Although not shown in the drawing, an edge detecting sensor is provided in front of the traveling direction of the web (hereinafter also referred to as "downstream"). The edge detection sensor detects how far the web is off the center of the roller. In one embodiment, there is a method of using a laser light source as an edge detection sensor or a method of using an image sensor. In the laser light source method, for example, a method in which a laser light source is irradiated on a web W and a reflected light thereof is received by a CCD element to measure the degree of deformation of the web, and in the image sensor method, And the position of the web is measured.

The information detected by the edge detection sensor is transmitted to a control unit (not shown) of the web guide apparatus. The control unit rotates the roller support plate 50 of the web guide device by a predetermined angle in a direction perpendicular to the traveling direction of the web (hereinafter, also referred to as "width direction" or "left and right direction") based on the received information, Thereby correcting the twist of the web W.

Hereinafter, the web guide apparatus according to one embodiment will be described with reference to FIGS. 2 to 5. FIG.

FIGS. 2 to 4 are a perspective view, a front view, and an exploded perspective view, respectively, of a web guide apparatus according to an embodiment, and FIG. 5 is a plan view showing an upper structure of a driving section support plate when the roller support plate 50 is removed.

Referring to the drawings, a web guide apparatus according to one embodiment includes a base plate 10, a support frame 15, a drive support plate 20, and a roller support plate 50.

The base plate 10 serves as a basic supporting member for supporting the pair of lower rollers 11 and supporting the upper supporting frame 15, the driving part supporting plate 20 and the roller supporting plate 50 as well. The base plate 10 may be, for example, coupled to a frame of a web coating system to which the web guide apparatus of the present invention belongs to support and fix the web guide apparatus 100 of the present invention.

The pair of lower rollers 11 can be attached to the base plate 10 via the shaft fixing portion 12 coupled to both ends of the roller shaft and the support frame 15 can be mounted in a space between the pair of lower rollers 11. [ A flat surface is formed above the lower roller 11 and a driving support plate 20 and a roller support plate 50 are provided on the flat surface.

The driving section support plate 20 is fixedly mounted on the support frame 15. In the illustrated embodiment, the supporting frame 15 and the driving part supporting plate 20 are formed with a plurality of through holes 16 and 19 at positions corresponding to each other, and are coupled by fastening means such as bolts and nuts, Can be fixedly mounted on the support frame (15) on the support plate (20). A driving part for rotating the roller supporting plate 50 such as the motor 21 is provided on the upper surface of the driving part supporting plate 20 and a roller supporting plate 50 is disposed thereon at a predetermined distance from the driving part supporting plate 20. The roller support plate 50 includes a pair of upper rollers 51 disposed in parallel in a left-right direction perpendicular to the web traveling direction and spaced apart from each other by a predetermined distance.

In the illustrated embodiment, the driving part structure such as the motor 21 is disposed on the driving part supporting plate 20 and the driving part supporting plate 20 is disposed on the supporting frame 15. However, in an alternative embodiment, 21 may be arranged on the upper surface of the support frame 15. [ That is, in this alternative embodiment, there is no separate drive support plate 20, and the support frame 15 can also be seen to serve as the drive support plate 20 of the illustrated embodiment.

The structure of the driving part on the driving part supporting plate 20 will now be described with reference to FIGS. Referring to the drawings, the driving part support plate 20 includes a motor 21, an actuator 22, a driving shaft 24, a driving shaft support 25, first to fifth sliding members 26, 41, 43 and 45 , 47, first to fourth guide shafts 32, 34, 36, 38, and first to fourth guide shaft supports 31, 33, 35, 37.

In one embodiment, the motor 21 is a linear motor. The DC linear motor 21 is preferably used because the control precision and the driving speed of the web guide device greatly affect the performance of the web guide device. The linear motor 21 can use, for example, a motor having the specifications shown in Table 1 below. The linear motor 21 has a structure for converting rotational motion into rectilinear motion inside the motor, and is suitable for a web guide device having little backlash and small size as compared with a general rotary motor, and thus being installed in a narrow space.

model name 35H45K-5V Control accuracy 6 μm / pulse Driving voltage 12V Maximum thrust 200N driver DCM4010 (maximum resolution: 255)

In the illustrated embodiment, the actuator 22 is coupled to the motor 21. In the embodiment of the present invention, the stroke of the actuator 22 preferably has a maximum stroke setting value of 50 mm or more in order to satisfy a control width of 20 mm or more. Also, the actuator 22 is required to have quick response of the driving actuator in order to remove disturbance at a high frequency, and preferably has a moving speed of 50 mm / sec or more, for example.

The driving shaft 24 is arranged in parallel with the actuator 22 and is coupled to the actuator 22 by a connecting member 23. At this time, the drive shaft 24 is arranged in the horizontal direction, that is, the left-right direction (or width direction) perpendicular to the web traveling direction indicated by arrows in the "first direction" or the "second direction" in FIG. The drive shaft 24 can be slidably supported on the drive support plate 20 by at least one drive shaft support 25 so that the drive shaft 24 is driven in the left- Sliding motion can be done.

Referring to FIG. 5, a first sliding block 26 is coupled to the driving shaft 24, and the first sliding block 26 moves integrally with the driving shaft 24. The first sliding block 26 is disposed on a predetermined point (hereinafter also referred to as "first reference position") of the driving section support plate 20. Assuming that the driving part support plate 20 is a rectangular flat plate in the illustrated embodiment, the first reference position may be a center point of the driving part supporting plate 20. [ Accordingly, the first sliding block 26 moves in the left and right direction (i.e., the direction perpendicular to the web traveling direction) around the first reference position by a motion of the motor 21 within a certain range.

The second sliding block 41 is located at a position spaced a first predetermined distance from the first reference position of the driving portion supporting plate 20 to the right upstream side of the first traveling direction of the web Quot; second reference position "). The second sliding block 41 passes through the second sliding block and is slidably supported by the first guide shaft 32 disposed horizontally (that is, parallel to the surface of the driving section support plate 20). The first guide shaft 32 is now engaged with the driving part support plate 20 by the first guide shaft support 31 and the extending direction in which the first reference position and the second reference position are extended Quot;). With this structure, the second sliding block 41 can move in the first extending direction along the first guide shaft 32 within a certain range.

The third sliding block 43 is moved from the first reference position of the driving part supporting plate 20 to the upper left side in the first traveling direction of the web at the upper surface of the driving part supporting plate 20 3 reference position "). The third sliding block 43 is slidably supported by the second guide shaft 34 disposed horizontally through the third sliding block. The second guide shaft 34 is coupled to the driving part support plate 20 by a second guide shaft support base 33 and extends in the extending direction of the first reference position and the third reference position Quot;). With this structure, the third sliding block 43 can move along the second guide shaft 34 in the second extending direction within a certain range.

The fourth sliding block 45 is located at a position spaced a second predetermined distance from the first reference position of the driver support plate 20 to the left downstream side in the first traveling direction of the web Quot; fourth reference position "). The second predetermined distance may or may not be equal to the first predetermined distance. The fourth sliding block 45 is slidably supported by a third guide shaft 36 disposed horizontally through the fourth sliding block. The third guide shaft 36 is coupled to the driving part support plate 20 by a third guide shaft support base 35 and extends in the extending direction of the first reference position and the fourth reference position Quot;). With this structure, the fourth sliding block 45 can move in the third extension direction along the third guide shaft 36 within a certain range.

The fifth sliding block 47 moves from the first reference position of the driving part support plate 20 to the right downstream side of the first traveling direction of the web on the upper surface of the driving part supporting plate 20 Quot; fifth reference position "). The fifth sliding block 47 is slidably supported by a fourth guide shaft 38 disposed horizontally through the fifth sliding block. The fourth guide shaft 38 is coupled to the driving section support plate 20 by a fourth guide shaft support base 37 and extends in the extending direction of the first reference position and the fifth reference position Quot;). With this structure, the fifth sliding block 47 can move in the fourth extension direction along the fourth guide shaft 38 within a certain range.

On the other hand, a connecting shaft 27 protruding upward is formed on the upper surface of the first sliding block 26, and the connecting shaft 27 can be rotatably coupled to the roller supporting plate 50. In the illustrated embodiment, a through hole 53 is formed in the center of the roller support plate 50 and the connecting shaft 27 of the first sliding block 26 is rotatably inserted into the through hole 53 . In the alternative embodiment, instead of the through-hole 53, a groove is formed at the position of the through-hole 53, and the connection shaft 27 is fitted into the recessed portion so that the connection shaft 27 rotates . As another alternative embodiment, for example, a through-hole is formed in the upper portion of the first sliding block 26 and the corresponding position of the roller supporting plate 50 facing the upper portion, and the connecting pin is inserted into the through- 26 and the roller support plate 50 may be rotatably engaged.

Each of the second to fifth sliding blocks 41, 43, 45, 47 may be rotatably coupled to the roller support plate 50, respectively. In the illustrated embodiment, the upper surface of each of the second to fifth sliding blocks 41, 43, 45, 47 is formed with recessed grooves 42, 44, 46, And through holes are formed at corresponding positions of the roller supporting plate 50 facing the recessed portions 42, 44, 46, and 48, respectively, though not shown in the drawing. The respective through-holes of the roller supporting plate 50 and the respective recessed portions 42, 44, 46, 48 of the second through fifth sliding blocks 41, 43, 45, 47 are fastened by the fixing pin 55 Each of the second to fifth sliding blocks 41, 43, 45, 47 is rotatably coupled to the roller supporting plate 50, respectively.

In a preferred embodiment, the first, second, and third sliding blocks 26, 41, and 43 are coupled to the roller support plate 50 or the first, fourth, and fifth sliding The blocks 26, 45, 47 can be engaged with the roller support plate 50. As a specific example, when the web travels in the first direction of travel (as indicated by the arrows in the "first direction" in Figure 5), each of the first, second, and third sliding blocks 26, And the fourth and fifth sliding blocks 45 and 47 do not engage with the roller supporting plate 50, respectively. That is, the first sliding member 26 is rotatably engaged with the roller supporting plate 50 by the connecting shaft 27, and the second and third sliding blocks 41 and 43 are fixed by the fixing pin 55 to the roller supporting plate 50. [ And the fourth and fifth sliding blocks 45 and 47 are not coupled to the fixing pin 55. [0051] As shown in Fig.

If the web travels in a second traveling direction opposite to the first traveling direction, i. E. Arrows in the "second direction" of Fig. 5, the first, fourth, and fifth sliding blocks 26, 45, And the second and third sliding blocks 41 and 43 do not engage with the roller supporting plate 50. In this case, That is, the first sliding member 26 is rotatably engaged with the roller supporting plate 50 by the connecting shaft 27, and the fourth and fifth sliding blocks 45 and 47 are fixed to the roller supporting plate 50 by the fixing pin 55. [ But the second and third sliding blocks 41 and 43 are not coupled to the fixing pin 55. In this case,

By such a coupling structure according to the traveling direction of the web, the roller supporting plate 50 is coupled and supported by a part of the first sliding block 26 and the second to fifth sliding blocks 41, 43, 45, The roller supporting plate 50 can be rotated within a certain angle range with respect to the driving part supporting plate 20. [

Hereinafter, the operation of the web guide apparatus according to one embodiment will be described with reference to FIGS. 6 to 9. FIG.

6 and 7 are a plan view and a perspective view for explaining the operation of the web guide apparatus according to an embodiment when the web proceeds in the first traveling direction. 6 shows the driving support plate 20 and the roller supporting plate 50 together, and the roller supporting plate 50 is indicated by the dash-dotted line for the sake of division. Some of the components, such as the upper roller 51, are omitted from the drawings for convenience of explanation.

Referring to the drawings, when the web advances in the first moving direction, the first, second, and third sliding blocks 26, 41, and 43 are moved by the connecting shaft 27 and the fixing pin 55 And the roller support plate 50, respectively. The driving shaft 24 is moved leftward or rightward by driving the motor 21 so that the first sliding block 26 is also moved in the left and right direction within a predetermined range It moves within.

6 shows a case in which the first sliding block 26 moves in the right direction. 6, the triangular dashed lines are lines connecting the connecting shaft 27 of the first sliding block 26 and the recessed portions 42 and 44 of the second and third sliding blocks 41 and 43, Since the connecting shaft and the groove are engaged with the roller supporting plate 50, the length of each side of the triangle does not change. 5 and 6, when the first sliding block 26 is moved a predetermined distance to the right, the second sliding block 41 is moved away from the first reference position along the first guide shaft 32 The third sliding block 43 moves slightly toward the first reference position along the second guide shaft 34 so that the triangular shape of the dotted line is twisted to the right by a predetermined angle while maintaining its shape . That is, the roller supporting plate 50, which moves in the same manner as the triangle, is rotated to the right by a predetermined angle.

FIG. 7 is a perspective view showing the roller supporting plate 50 rotated to a right angle by a predetermined angle. FIG. 7 (a) shows a state in which when the first sliding block 26 is in the first reference position, And corresponds to Fig. 5. In this state, the driving part supporting plate 20 and the roller supporting plate 50 are properly aligned without being twisted with each other.

Fig. 7 (b) corresponds to Fig. 6 in which the drive shaft 24 and the first sliding block 26 are slid to the right by the operation of the motor 21. Fig. The roller support plate 50 is rotated rightward by a predetermined angle with respect to the driving section support plate 20, That is, as the first sliding block 26 moves to the right, the second sliding block 41 is slightly away from the first reference position and the third sliding block 43 is slightly closer to the first reference position, The roller support plate 50 is rotated rightward by a predetermined angle with respect to the support plate 20.

According to one embodiment of the present invention, when the web advances in the first traveling direction, the first to third sliding blocks 26, 41, 43 are fastened to the roller supporting plate 50, The second sliding block 41 moves along the first extending direction in the first guide shaft 32 and the third sliding block 43 is moved in the second extending direction by controlling the first sliding block 26 to move in the left- Moves in the second extending direction in the second guide shaft 34 so that the roller supporting plate 50 can be rotated to the left or right with respect to the driving part supporting plate 20 by a predetermined angle. When the roller support plate 50 is rotated in the left-right direction, the upper roller 51 also rotates to the left or right by a predetermined angle. Therefore, every time the web W passing through the upper roller 51 comes out of the center, 50 can be rotated to the left or right to adjust the deformation of the web.

8 and 9 are a plan view and a perspective view for explaining the operation of the web guide apparatus according to an embodiment when the web proceeds in the second traveling direction. 8 shows the driving support plate 20 and the roller supporting plate 50 together, and the roller supporting plate 50 is indicated by a dash-dotted line for the sake of description. Some of the components, such as the upper roller 51, are omitted from the drawings for convenience of explanation.

Referring to the drawings, when the web proceeds in the second traveling direction, the first, fourth, and fifth sliding blocks 26, 45, 47 are moved by the connecting shaft 27 and the fixing pin 55 And the roller support plate 50, respectively. The driving shaft 24 is moved leftward or rightward by driving the motor 21 so that the first sliding block 26 is also moved in the left and right direction within a predetermined range It moves within.

8 shows a case where the first sliding block 26 is moved in the right direction. In FIG. 8, the triangular dashed lines are lines connecting the connecting shaft 27 of the first sliding block 26 and the recessed portions 46 and 48 of the fourth and fifth sliding blocks 45 and 47, Since the connecting shaft and the groove are engaged with the roller supporting plate 50, the length of each side of the triangle does not change. 5 and 8, when the first sliding block 26 is moved a predetermined distance to the right, the third sliding block 45 approaches the first reference position along the first guide shaft 36 And the fifth sliding block 47 is slightly moved away from the first reference position along the second guide shaft 38 so that the triangular shape of the dotted line is twisted to the right by a predetermined angle while maintaining its shape . That is, the roller supporting plate 50, which moves in the same manner as the triangle, is rotated to the right by a predetermined angle.

FIG. 9 is a perspective view showing a state in which the roller supporting plate 50 is rotated to the right by a predetermined angle. FIG. 9 (a) shows a state in which the first sliding block 26 is in the first reference position, And corresponds to Fig. In this state, the driving part supporting plate 20 and the roller supporting plate 50 are properly aligned without being twisted with each other.

9 (b) shows the state in which the drive shaft 24 and the first sliding block 26 are slid to the right by the operation of the motor 21, and corresponds to Fig. The roller support plate 50 is rotated rightward by a predetermined angle with respect to the driving section support plate 20, That is, as the first sliding block 26 moves to the right, the fourth sliding block 45 is slightly closer to the first reference position and the fifth sliding block 47 is slightly away from the first reference position, The roller support plate 50 is rotated rightward by a predetermined angle with respect to the support plate 20.

According to one embodiment of the present invention, when the web proceeds in the second traveling direction, the first, fourth, and fifth sliding blocks 26, 45, 47 are fastened to the roller support plate 50, The fourth sliding block 45 and the fifth sliding block 47 are moved along the guide shafts 36 and 38 in the right and left directions by driving the driving motor 21 to control the first sliding block 26 to move in the left- The roller support plate 50 can be rotated to the left or right with respect to the driver support plate 20 by a predetermined angle. When the roller support plate 50 is rotated in the left-right direction, the upper roller 51 also rotates to the left or right by a predetermined angle. Therefore, every time the web W passing through the upper roller 51 comes out of the center, 50 can be rotated to the left or right to adjust the deformation of the web.

10 is a view for explaining the arrangement relationship of the web guide apparatus and the edge detection sensor according to one embodiment according to the traveling direction of the web. 10 (a) shows a state in which the edge detection sensor 200 is installed on the downstream side in the first direction in contrast to the case where the web proceeds in the first direction, and FIG. 10 (b) The edge detection sensor 300 is installed on the downstream side in the second direction as compared with the case of advancing in the direction of the web guide device 100. Figure 10C shows the state in which the edge detection sensors 200 and 300 are installed on both sides of the web guide device 100 Respectively.

When the web W advances in the first traveling direction, a control unit (not shown) is connected to the motor 21 (not shown) according to the sensing result of the edge detection sensor 200 provided on the downstream side of the web guide device 100, To rotate the roller support plate 50 to the left and right to control the web guide unit. Even if the web W advances in the second traveling direction opposite to the first traveling direction, as shown in Fig. 10 (b), the sensing result of the edge detecting sensor 300 provided on the downstream side of the web guide device 100 A controller (not shown) drives the motor 21 to rotate the roller support plate 50 left and right to control the web guide apparatus. When the web proceeds only in one of the first and second traveling directions, only one of the edge detection sensors 200 and 300 may be installed on the downstream side of the traveling direction of the web and operated together with the web guide device 100.

If the web is able to advance to either the first or the second traveling direction, it may be preferable to provide the edge detection sensors 200, 300 on both sides of the web guide device 100 as shown in Fig. 10 (c) . In this case, it is possible to perform the web guide operation as described above by operating the edge detection sensor on the downstream side in this direction with respect to any traveling direction of the web together with the web guide apparatus 100. [

In this case, according to the present invention, when the web traveling direction is changed, for example, the fixing pin 55 is removed from the second and third sliding blocks 41 and 43, and the yaw groove of the fourth and fifth sliding blocks 45, So that the web guide device can be easily prepared according to the change of the web traveling direction. Further, in this preparation process, since only the position of the fixing pin 55 is changed without removing the web W held on the upper roller 51 from the web guide device 100, It is possible to perform the reset operation of the controller 100 as simple and as quickly as possible.

In describing the above-described specific embodiments, various specific details have been set forth in order to provide a thorough understanding of the invention. It will be appreciated that those parts of the above-described embodiments that are known in the art and are not significantly related to the present invention have not been described in order to avoid confusion in describing the present invention. For example, in order to drive the motor 21 of the present invention, a power supply line connected from the outside to the motor 21 is required, and a controller implemented as a processor, a memory, or the like is required for controlling the motor 21 . However, it will be understood by those skilled in the art that the drawings in this specification omit the illustration of these components so as not to hinder the description of the features of the present invention.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents. And should be determined by equivalents to the scope of the appended claims.

10: base plate
15: Support frame
20:
21: Motor
22: Actuator
24:
26, 41, 43, 45, 47:
27: Connection axis
31, 33, 35, 37:
32, 34, 36, 38:
42, 44, 46, 48:
50: roller supporting plate

Claims

A roller support plate 50 for supporting a pair of upper rollers 51 spaced apart from each other by a predetermined distance along the web traveling direction and a drive support plate 20 spaced apart from the roller support plate by a predetermined distance, As a guide device,
The driving part support plate (20)
A first sliding block (26) disposed at a first reference position on the upper surface of the driving part support plate (20) and reciprocatable in a lateral direction perpendicular to the web traveling direction;
A second reference position which is located at a second reference position spaced apart from the first reference position by a first distance to the right upstream side of the first traveling direction of the web and which is reciprocatable in a first extending direction extending from the first reference position to the second reference position A second sliding block 41;
A third reference position spaced apart from the first reference position by a first distance to the left upstream side of the web in the first advancing direction and being reciprocatable in a second extending direction extending from the first reference position and the third reference position, A third sliding block 43;
A second reference position, and a third reference position, the second reference position being located at a fourth reference position spaced a second distance from the first reference position to the left downstream side in the first direction of travel of the web, A fourth sliding block 45; And
And a second reference position that is located at a fifth reference position spaced apart from the first reference position by a second distance to the right downstream side of the first traveling direction of the web and which is reciprocatable in a fourth extending direction extending from the first reference position to the fifth reference position And a fifth sliding block (47).

The method according to claim 1,
The first, second, and third sliding blocks are engaged with the roller supporting plate 50 or the first, fourth, and fifth sliding blocks are engaged with the roller supporting plate 50 according to the web traveling direction Wherein the web guide device comprises:

3. The method of claim 2,
Each of the first, second, and third sliding blocks is rotatably engaged with the lower surface of the roller support plate 50 when the web advances in the first traveling direction, and the fourth and fifth sliding blocks Is not engaged with the roller support plate (50).

3. The method of claim 2,
The first, fourth, and fifth sliding blocks are rotatably engaged with the lower surface of the roller supporting plate 50, respectively, when the web advances in the second traveling direction opposite to the first traveling direction, And the second and third sliding blocks do not engage with the roller support plate (50).

The web guide apparatus according to claim 1, wherein the first reference position is a center point of the driving section support plate (20).

2. The web guide apparatus according to claim 1, wherein the first distance is equal to the second distance.

2. The apparatus of claim 1, wherein the drive support plate (20)
A linear motor 21;
An actuator 22 coupled to the linear motor 21; And
And a driving shaft (24) connected to the actuator and integrally coupled to the first sliding block (26) and arranged in the left and right direction,
Wherein the driving shaft (24) and the first sliding block (26) coupled to the driving shaft (24) are reciprocatable in the left and right direction by driving the linear motor (21).

2. The apparatus of claim 1, wherein the drive support plate (20)
A first guide shaft (32) passing through the second sliding block (41) and arranged in the first extending direction; And
And a second guide shaft (34) passing through the third sliding block (43) and arranged in the second extending direction.

2. The apparatus of claim 1, wherein the drive support plate (20)
A third guide shaft (36) passing through the fourth sliding block (45) and arranged in the third extending direction; And
And a fourth guide shaft (38) passing through the fifth sliding block (47) and arranged in the fourth extending direction.