JP5953267B2 - Sheet material position adjustment method and sheet material position adjustment apparatus - Google Patents

Description

  The present invention relates to a sheet material position adjusting method for adjusting the position in the width direction of a traveling sheet material in a corrugated board production line, and a sheet material position adjusting device suitable for use in the sheet material position adjusting method. It is about.

  The corrugated cardboard sheet is manufactured by an apparatus generally called a corrugator. In the corrugator, a single-faced corrugated sheet is manufactured by laminating a corrugated core and a back liner in a single facer, and a single-faced corrugated sheet and a front liner in a double facer, or multiple single-sided corrugated sheets. Are bonded to the front liner to produce a cardboard sheet such as a double-sided cardboard sheet or a double-sided cardboard sheet. The manufactured corrugated cardboard sheet is creased and grooved by a slitter scorer in parallel with the running direction, and then cut in a direction perpendicular to the flow direction by a predetermined length.

  The above process is performed while running a sheet material such as a core, a back liner, a front liner, a single-sided cardboard sheet, a double-sided cardboard sheet, etc., but the position where the sheet material runs is the width direction (direction perpendicular to the running direction). A problem may occur due to the deviation. For example, if the sheet material before pasting shifts in the width direction, the end sides in the width direction may become uneven between the pasted sheet materials. Generally, in order to ensure the dimensional accuracy in the width direction of the corrugated cardboard sheet, a drop allowance for cutting off both ends is set in advance, but if the uneven width at the edge exceeds the drop allowance, Corrugated cardboard is a waste subject and is a great waste. Further, if the sheet material is shifted in the width direction upstream of the slitter scorer, ruled lines and grooving are performed at the shifted position, and the size of the manufactured cardboard blank becomes inaccurate.

  Therefore, various devices for adjusting the position in the width direction of the traveling sheet material have been proposed. In the past, the present applicant has proposed a position adjusting device 100 in which a pair of rotating rolls 101 and 102 are arranged in parallel at predetermined intervals and supported at different heights as shown in FIG. (See Patent Document 1). In this apparatus, as shown in FIG. 5A, the traveling sheet material S is wound around one roll 101 so as to circulate from the outside, and then the gap between the rolls 101 and 102 is passed through, and the other It winds around the roll 102 so that it may go around in the direction opposite to when it winds around the roll 101.

  Accordingly, as shown in FIG. 5B, when the axial direction of the rolls 101 and 102 is orthogonal to the traveling direction of the sheet material (shown by an arrow), the sheet material S after passing through the rolls 101 and 102. The position in the width direction is the same as that before passing the rolls 101 and 102 as shown by the broken lines. On the other hand, when the axial direction of the rolls 101 and 102 is tilted from the direction orthogonal to the traveling direction of the sheet material S while maintaining the positional relationship between the rolls 101 and 102, the sheet material S is before and after passing through the rolls 101 and 102. Displaces in the width direction. And the displacement amount d can be adjusted by the angle which inclines the axial direction of the roll 101,102.

  However, in the position adjusting device 100, when the axial direction of the rotating rolls 101 and 102 is tilted, the rotation direction of the rolls 101 and 102 does not match the traveling direction of the sheet material S. Therefore, the traveling direction of the sheet material S is affected by the force acting on the sheet material S from the rotating rolls 101 and 102, and it may be difficult to precisely adjust the position in the width direction of the sheet material S. .

  Therefore, the present applicant has further proposed a position adjusting device using a pair of cylindrical bars that do not rotate (see Patent Document 2). This is because the first bar and the second bar that do not rotate are arranged in parallel at an interval, and the first bar and the second bar are centered on the virtual point between the first bar and the second bar. It is intended to rotate. According to this position adjusting device, unlike the position adjusting device 100 of Patent Document 1, there is no problem that the traveling direction of the sheet material is affected by the rotation direction of the roll. There is a high correlation between the angle of inclining the axial direction and the amount of displacement in the width direction of the sheet material, and the position of the sheet material in the width direction can be precisely controlled.

  However, the non-rotating bar has a high frictional resistance with the wound sheet material. Therefore, there is a possibility that the tension of the sheet material adjusted in the corrugated cardboard production line is changed by operating the position adjusting device. For example, the core core paper and back liner that are fed into a single facer are molded into a corrugated shape without wrinkling, and the core and back liner are bonded together with a tensile force that does not deform the formed step. In order to achieve this, a suitable tension is applied. Therefore, if the position adjustment device is operated to correct the positional deviation in the width direction between the core raw paper and the back liner before bonding, the tension of the sheet material is caused by friction with the non-rotating bar when passing through the position adjustment device. There was a risk that the core would be higher than the appropriate value and the molding of the core and the bonding between the core and the back liner would be poor.

  In addition, the non-rotating bar is highly worn due to high frictional resistance with the wound sheet material. The wear of the bar proceeds non-uniformly on the peripheral surface. Therefore, when the wear of the bar progresses, it may be difficult to precisely control the position in the width direction of the sheet material.

  Therefore, in view of the above situation, the present invention can precisely adjust the position in the width direction of the sheet material traveling in the corrugated board production line, and the tension of the sheet material is caused by the frictional resistance between the sheet material and the member. A sheet material position adjusting method in which the possibility of increase or the possibility of position adjustment accuracy being lowered due to wear of members is reduced, and a sheet material position adjusting device suitable for use in the sheet material position adjusting method Providing is an issue.

  In order to solve the above-mentioned problems, the sheet material position adjusting method according to the present invention (hereinafter sometimes simply referred to as “position adjusting method”) is “first long bar-like members arranged in parallel at intervals. And a second long bar-shaped member, a long sheet material is wound around the first long bar-shaped member, and the second long bar-shaped member is passed through the gap between the first long bar-shaped member and the second long bar-shaped member. The axial movement of the first long bar-shaped member and the second long bar-shaped member is performed while the positional relationship between the first long bar-shaped member and the second long bar-shaped member is maintained. A sheet material position adjusting method for displacing the sheet material in the width direction by inclining with respect to a direction orthogonal to the traveling direction of the sheet material, wherein the first long bar-shaped member and the second long bar-shaped member are respectively It can rotate following the running of the sheet material While the Rirora, at least one of rotation of the first long rod-like member and the second long bar-like member is braked by the brake "we are intended.

  Hereinafter, when it is not necessary to distinguish between the “first long bar-shaped member” and the “second long bar-shaped member”, they may be collectively referred to as “long bar-shaped members”.

  "Sheet material" is a sheet that is curved along the outer peripheral surface of a long bar-shaped member such as a front liner, back liner, core base paper, corrugated core, single-sided cardboard sheet, etc. Points to the material.

  As the “brake”, a mechanical brake, a fluid brake, an electromagnetic brake or the like can be used without any particular limitation. The brake may be attached to both the first long bar-like member and the second long bar-like member, or may be attached to only one of them. When attached to both the first long bar-like member and the second long bar-like member, each brake can be individually controlled or interlocked. For example, when printing is performed on one side of the sheet material, the long bar-shaped member that contacts the printing surface of the first long bar-shaped member and the second long bar-shaped member and the length that the surface that is not printed contacts. Since the frictional resistance is different from that of the rod-shaped member, it is desirable to control each brake individually. When a brake is attached to only one of the first long bar-like member and the second long bar-like member, one braked rotation may be transmitted to the other via a pulley and a belt, a sprocket and a chain, or the like.

  According to this configuration, it is possible to achieve harmony between the advantages and disadvantages when the pair of long rod-shaped members are free rollers and the advantages and disadvantages when the pair of long rod-shaped members are non-rotating bars. That is, when the pair of long bar-shaped members are free rollers, there is an advantage that the frictional resistance between the sheet material and the long bar-shaped member is small, but by tilting the axial direction of the pair of long bar-shaped members, When displacing, the traveling direction of the sheet material is affected by the rotational force of the free roller, and the position cannot be adjusted precisely. On the other hand, if the pair of long bar-shaped members are non-rotating bars, there is an advantage that the position of the sheet material can be adjusted accurately without being affected by the rotational force. The frictional resistance between is large. On the other hand, in this configuration, the first long bar-shaped member and the second long bar-shaped member are free rollers, and the rotation is braked by a brake, so that the extent that the traveling direction of the sheet material is affected by the rotational force is suppressed. Meanwhile, the first long bar-shaped member and the second long bar-shaped member can be slightly rotated to reduce the frictional resistance with the sheet material.

The sheet material position adjustment method according to the present invention includes, in addition to the above-described configuration, “ a position adjustment portion that is a portion that performs position adjustment in the width direction of the sheet material by the first long bar-shaped member and the second long bar-shaped member. detecting the tension of the sheet material at the outlet, to control the braking by based rather controlled to a value of the detected tension "Ru der ones.

  The “tension detection” of the sheet material can be performed using a differential transformer that converts a load into an electric signal or a detector that uses a load cell.

  In this configuration, the tension of the sheet material is detected on the downstream side of the portion for adjusting the position in the width direction of the sheet material, and this is fed back to control the brake. Thereby, by passing through the first long bar-shaped member and the second long bar-shaped member, the risk of increasing the tension of the sheet material is reduced, so that it becomes an appropriate value desired in the travel line of the sheet material, The tension of the sheet material can be adjusted.

The sheet material position adjusting method according to the present invention includes, in addition to the above-described configuration, “providing a driving roller that feeds the sheet material by driving a motor at an entrance of the position adjusting portion, and controlling the motor to control the first length. The travel speed of the sheet material sent to the rod-like member is changed. "

  In this configuration, the traveling speed of the sheet material sent to the first long bar-like member is changed by the control of the motor that drives the drive roller. For example, if the traveling speed of the sheet material sent to the first long rod-shaped member is made larger than the traveling speed of the sheet material downstream of the second long rod-shaped member, the sheet material wound around the long rod-shaped member The pressing force on the outer peripheral surface of the sheet decreases. As a result, even if the degree of braking by the brake is increased, an increase in the frictional resistance between the long bar member and the sheet material can be suppressed, and the tension of the sheet material wound around the long bar member becomes excessive. The fear can be reduced. In addition, the position adjustment in the width direction of the sheet material can be performed more precisely by bringing the first long bar-shaped member and the second long bar-shaped member, which are free rollers, closer to the non-rotating bar. On the other hand, since the force for pressing the sheet material against the outer peripheral surface of the long bar-shaped member is reduced, even if the first long bar-shaped member and the second long bar-shaped member, which are free rollers, are rotated following the travel of the sheet material, Rotational force hardly acts on the sheet material. Therefore, the position adjustment in the width direction of the sheet material can be performed more precisely while suppressing the frictional resistance with the sheet material by rotating the long bar-shaped member.

  Next, the sheet material position adjusting apparatus according to the present invention includes a "supporting part that supports the first long bar-shaped member and the second long bar-shaped member in parallel with a space therebetween, and the first through the support part. A frame that supports the long bar-shaped member and the second long bar-shaped member at a position higher than the installation surface, and the support portion is displaced with respect to the frame, and the gap between the first long bar-shaped member and the second long bar-shaped member. A sheet material position adjusting device comprising: a supporting member displacing device that rotates the first long bar-shaped member and the second long bar-shaped member around a virtual point that is positioned, wherein the first long bar-shaped member and Each of the second long bar-like members is a free roller that is rotatable around an axis, and further includes a brake that brakes rotation of at least one of the first long bar-like member and the second long bar-like member. .

In addition to the above-described configuration, the sheet material position adjusting device according to the present invention includes a “ position adjusting portion that is a portion that performs position adjustment in the width direction of the sheet material by the first long bar-shaped member and the second long bar-shaped member . A tension detecting roller around which a sheet material is wound at the outlet , a tension detecting device for detecting the tension of the sheet material wound around the tension detecting roller, and a tension value detected by the tension detecting device wherein further comprising a brake control means for controlling the brake "Ru der ones.

Further, the sheet material position adjusting device according to the present invention is in addition to the above-mentioned configuration, “the sheet material is wound around the entrance of the position adjusting portion, and the sheet material is directed toward the first long bar-shaped member by driving the motor. It further includes a drive roller for feeding.

  The sheet material position adjusting device having these configurations is suitable for use in the above-described sheet material position adjusting method, and may increase the tension of the sheet material due to frictional resistance between the sheet material and the long bar-like member, The position in the width direction of the sheet material traveling on the corrugated board production line can be precisely adjusted while reducing the possibility of the position adjustment accuracy being lowered due to the wear of the members.

  As described above, as an effect of the present invention, the position in the width direction of the sheet material traveling in the corrugated cardboard production line can be precisely adjusted, and the tension of the sheet material is determined by the frictional resistance between the sheet material and the long bar-shaped member. Position adjustment method of the sheet material in which the risk of increase in the position of the sheet material is reduced or the possibility that the accuracy of the position adjustment decreases due to wear of the long bar-shaped member, and the position of the sheet material suitable for use of the position adjustment method of the sheet material Provision of an adjustment device can be provided.

It is a schematic block diagram of the position adjustment apparatus of the sheet | seat material of 1st embodiment of this invention. It is a perspective view of the position adjustment apparatus of the sheet | seat material of FIG. The position adjustment in the position adjustment apparatus for the sheet material of FIG. 1 will be described. (A) When the first long bar-like member and the second long bar-like member are not rotated, (b) the first long bar-like member and the second long bar-like member. It is a front view when it is made to rotate. It is a schematic block diagram of the position adjustment apparatus of the sheet | seat material of 2nd embodiment of this invention. It is a figure explaining the principle of the position adjustment by the position adjustment apparatus of patent document 1. FIG.

  Hereinafter, the sheet material position adjusting method according to the first embodiment of the present invention and the sheet material position adjusting device 1 suitable for use in the position adjusting method according to the first embodiment (hereinafter simply referred to as “position adjusting device 1”). Will be described with reference to FIGS. In addition, in order to clarify a structure, in FIG. 1, illustration of a mount frame, a support part, and a support part displacement apparatus is abbreviate | omitted.

  First, the configuration of the position adjusting device 1 will be described. The position adjusting device 1 includes a support part that supports the first long bar-shaped member 11 and the second long bar-shaped member 12 in parallel with a space therebetween, and the first long bar-shaped member 11 and the second long bar-shaped member via the support part. A base that supports 12 at a position higher than the installation surface, and a support portion is displaced with respect to the base, and the first point around the virtual point P located between the first long bar member 11 and the second long bar member 12 A position adjusting device for the sheet material S including a support member displacing device for rotating the long bar-shaped member 11 and the second long bar-shaped member 12, wherein the first long bar-shaped member 11 and the second long bar-shaped member 12 are respectively The free roller is rotatable around the shafts 11p and 12p, and further includes brakes 51 and 52 for braking the rotation of the first long bar member 11 and the second long bar member 12, respectively.

  In addition to the above configuration, the position adjusting device 1 includes a tension detection roller 15 around which the sheet material S is wound downstream of the second long bar-shaped member 12, and a sheet material S wound around the tension detection roller 15. A tension detecting device for detecting the tension and a brake control means for controlling the brake based on the tension value detected by the tension detecting device are further provided.

  More specifically, the gantry includes a rectangular columnar lower cross member 31 placed on the installation surface, a support column 33 erected from the lower cross member 31, and the upper end of the support column 33 in parallel with the lower cross member 31. A pair of substantially U-shaped frames composed of extended upper cross members 32 are provided. The pair of frames are arranged with the U-shaped open ends directed in the same direction, and the lower cross members 31 and the upper cross members 32 arranged in parallel. Here, assuming that the U-shaped open end direction of the frame is the front, each of the pair of columns 33 includes a column base 34 that extends from the front side surface toward the other column 33 in the same plane. .

  On the other hand, the support portion includes a pair of flat plate-like support plates 21 and a support base portion 22 extending at right angles from one side of each support plate 21. And a pair of support base part 22 is making the surface on the opposite side to the direction where the support plate 21 protrudes face the support | pillar base part 34 of a mount frame, respectively. A rail 41 is attached to each of the pair of support base portions 34. These rails 41 have an arc shape that is a part of a circle with a virtual point P located between the first long bar-shaped member 11 and the second long bar-shaped member 12 as the center. On the other hand, a plurality of sliders 42 that are engaged with the rail 41 and slide along the rail 41 are attached to each of the pair of support base portions 22. When the slider 42 is engaged with the rail 41, the pair of support plates 21 are supported by the gantry via the support base portion 22 in a parallel state.

  The first long bar-shaped member 11 has one end of the shaft 11p inserted into one of the pair of support plates 21 and the other end of the shaft 11p inserted into the other support plate 21 so that it can rotate between the pair of support plates 21. It is supported. Similarly, the second long rod-shaped member 12 is also inserted at one end of the shaft 12p into one of the pair of support plates 21 and the other end of the shaft 12p into the other support plate 21 at a position away from the first long rod-shaped member 11. By doing so, it is rotatably supported between the pair of support plates 21 and parallel to the first long bar-shaped member 11. In the present embodiment, the case where the first long bar-shaped member 11 is supported on the upper part of the support plate 21 and the second long bar-shaped member 12 is supported on the lower part of the support plate 21 and the sheet material S travels from the upper side to the lower side is illustrated. doing. In addition, a line connecting the shaft 11p of the first long rod-shaped member 11 and the shaft 12p of the second long rod-shaped member 12 is inclined from the first long rod-shaped member 11 by a predetermined angle with respect to the vertical direction. The traveling direction of the sheet material S toward the double long rod-shaped member 12 is inclined by a predetermined angle (angle α in FIG. 1) with respect to the traveling direction of the sheet material S flowing into the first long rod-shaped member 11.

  One end of the pair of upper cross members 32 is rotatably attached to an end portion of a cylinder portion 45a of a cylinder device 45 that is operated by air or hydraulic pressure. The tip of the piston rod 45b of the cylinder device 45 is pivotally supported by a mounting piece 46 projecting outward from one of the pair of support plates 21. With this configuration, when the piston rod 45b of the cylinder device 45 advances, the pair of support plates 21 rotate about the virtual point P while sliding the slider 42 along the rail 41, and accordingly, the first long bar shape The member 11 and the second long bar-shaped member 12 rotate around the virtual point P. On the contrary, when the piston rod 45b moves backward, the pair of support plates 21 rotate in the opposite directions while sliding the slider 42 along the rail 41, and accordingly, the first long bar-shaped member 11 and the second long bar-shaped member. 12 rotates in the opposite direction. Here, the rail 41, the slider 42, the cylinder device 45, and the attachment piece 46 correspond to the “support portion displacement device” of the present invention.

  Brakes 51 and 52 are respectively attached to the shafts 11p and 12p of the first long bar member 11 and the second long bar member 12, respectively. In the present embodiment, magnetic powder is enclosed inside as the brakes 51 and 52, and the magnetic powder is gathered along the magnetic flux generated by energizing the coil, thereby providing resistance to rotation of the shafts 11p and 12p. A powder brake is used.

  A guide roller 71 is rotatably supported between the pair of upper cross members 32 above the first long bar-shaped member 11. Further, a tension detection roller 15 is rotatably supported between the pair of lower cross members 31 downstream of the second long bar-shaped member 12. On both sides of the tension detection roller 15, auxiliary rollers 72 and 73 that assist the winding of the sheet material S around the tension detection roller 15 are lower than the tension detection roller 15, respectively, and are paired with a pair of lower side rollers. It is rotatably supported between the materials 31.

  A pillow block 61 provided with a bearing that rotatably supports the shaft 15p is attached to the tension detection roller 15. The pillow block 61 is installed on a tension detector 62. The tension detector 62 has a load receiving plate (not shown) that receives a load as a resultant force of the sheet material S wound around the tension detecting roller 15 and rotates around the fulcrum by receiving the load. The displacement of the moved load receiving plate is converted into an electric signal by a differential transformer. Here, the tension detector 62 and the pillow block 61 correspond to the “tension detector” of the present invention.

  Further, the position adjusting device 1 includes a computer (not shown), and the tension of the sheet material S wound around the tension detecting roller 15 is based on the electric signal output from the tension detector 62 in the CPU of the computer. Is stored with a program that causes the computer to function as a brake control means for controlling the brakes 51 and 52 by comparing with the predetermined value.

  When using the position adjusting device 1 having the above-described configuration, the sheet material S is wound around the first long bar-shaped member 11, and the gap between the first long bar-shaped member 11 and the second long bar-shaped member 12 is passed through. It is made to drive | work in the state wound around the double long rod-shaped member 12. FIG. On the upstream side, the sheet material S is guided to the first long bar-shaped member 11 by the guide roller 71. Further, on the downstream side, the sheet material S that has passed through the second long bar-shaped member 12 is wound around the auxiliary roller 72 from below, and is wound around the tension detecting roller 15 from above through the auxiliary roller 72 and the tension detecting roller 15. Further, it passes between the tension detecting roller 15 and the auxiliary roller 73 and is wound around the auxiliary roller 73 from below.

  As shown in FIG. 3A, in a state where the axial direction of the first long bar-shaped member 11 and the second long bar-shaped member 12 is orthogonal to the traveling direction of the sheet material S, before and after passing through the position adjusting device 1. The sheet material S is not displaced in the width direction. On the other hand, as shown in FIG. 3B, when the cylinder device 45 is operated to move the piston rod 45b forward or backward (in the drawing, the case of backward movement is illustrated), the slider 42 is slid along the rail 41. The pair of support plates 21 rotate around the virtual point P. Accordingly, the first long bar-shaped member 11 and the second long bar-shaped member 12 supported between the pair of support plates 21 rotate around the virtual point P. In other words, the axial direction of the first long bar-shaped member 11 and the second long bar-shaped member 12 is inclined with respect to the direction orthogonal to the traveling direction of the sheet material S. Thereby, the traveling direction of the sheet material S is displaced in the width direction before and after passing through the position adjusting device 1.

Here, as shown in FIG. 3B, the distance between the outer peripheral surfaces of the pair of long bar-shaped members is L, and the axial direction of the pair of long bar-shaped members is inclined with respect to the direction orthogonal to the traveling direction of the sheet material S. If the angle (the angle obtained by rotating the pair of long bar-shaped members around the virtual point P) is β, when the long bar-shaped member is a non-rotating bar, the displacement amount d in the width direction of the sheet material S and the angle α , Angle β, and distance L, the following equation holds.
d = sin β (L− (cos α) L)
Accordingly, when the long bar-shaped member is a non-rotating bar, the displacement d in the width direction of the sheet material S can be precisely controlled by the angle β, but the frictional resistance of the sheet material S against the long bar-shaped member that is a non-rotating bar is low. high. On the other hand, if the pair of long bar-shaped members are free rollers that rotate following the travel of the sheet material S, the frictional resistance is extremely small, but the rotational force of the free rollers affects the travel direction of the sheet material S. Since the relationship between the angle β and the displacement amount d does not satisfy the above relationship, the displacement amount d in the width direction of the sheet material S cannot be precisely controlled.

  On the other hand, in this embodiment, since the brakes 51 and 52 are attached to the first long bar-shaped member 11 and the second long bar-shaped member 12 which are free rollers, the angle β and the displacement amount d are practically allowable ranges. So that the driven rotation of the first long bar-like member 11 and the second long bar-like member 12 accompanying the traveling of the sheet material S can be braked, and the first long bar-like member 11 and the second Friction with the sheet material S can be reduced by slightly rotating the long rod-shaped member 12 around the respective axes 11p and 12p.

  As described above, in the present embodiment, even if the first long bar-shaped member 11 and the second long bar-shaped member 12 are free rollers, the correlation between the angle β and the displacement amount d can be increased. The amount of displacement d in the width direction of the sheet material S can be precisely adjusted by changing the rotation angle β of the first long bar-shaped member 11 and the second long bar-shaped member 12 according to the length of the forward or backward movement. .

  For example, a cylinder device is controlled by a control device such as a computer or a programmable controller that receives a signal sent from a detection device that quantitatively detects the shift of the edge of the bonded sheet material S, and is controlled by a preset program. 45 can be actuated to adjust the length for moving the piston rod 45b. Here, as a detection device that detects the shift of the edge of the sheet material S, for example, a camera that captures the vicinity of the edge of the sheet material S and a computer that includes a program that analyzes an image captured by the camera are provided. Things can be used.

  In the present embodiment, the tension of the sheet material S that has passed through the second long bar-shaped member 12 is detected by the tension detector 62, and the detected tension value is the desired tension value in the travel line of the sheet material S. Contrast with As a result, for example, if the detected tension value is larger than a desired value, the brakes 51 and 52 are controlled to increase the degree of freedom of rotation of the first long bar-shaped member 11 and the second long bar-shaped member 12, and the sheet material Reduces frictional resistance with S. In this way, the detected tension value is compared with a desired value, and this is fed back to control the brakes 51 and 52, whereby the tension of the sheet material S after passing through the position adjusting device 1 is set appropriately. Can be adjusted to any value.

  Next, a position adjustment method that is a second embodiment of the present invention and a position adjustment device 2 that is suitable for use in the position adjustment method of the second embodiment will be described with reference to FIG. In FIG. 4, the pedestal, the support part, and the support part displacement device are not shown to clarify the configuration. Moreover, about the structure similar to the position adjustment apparatus 1 of 1st embodiment, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted.

  The position adjustment device 2 of the second embodiment is different from the position adjustment device 1 of the first embodiment in that the sheet is directed above the first long bar-shaped member 11 toward the first long bar-shaped member 11 by driving a motor 56. The driving roller 16 for feeding the material S is provided. The driving roller 16 is supported between the pair of upper cross members 32 above the first long bar-shaped member 11, and the shaft 16 p of the driving roller 16 is connected to the rotating shaft of the motor 56. An auxiliary roller 74 that presses the sheet material S against the drive roller 16 is rotatably supported between the pair of upper cross members 32 adjacent to the drive roller 16.

  When using the position adjusting device 2, the sheet material S is wound around the first long bar-shaped member 11 after passing between the auxiliary roller 74 and the driving roller 16. Then, the traveling speed of the sheet material S sent to the first long bar-shaped member 11 is changed by the control of the motor 56 that drives the driving roller 16.

  For example, when the motor 56 is adjusted so that the traveling speed of the sheet material S sent from the drive roller 16 to the first long rod-shaped member 11 is larger than the traveling speed of the sheet material S downstream of the second long rod-shaped member 12, The force which presses the sheet | seat material S currently wound around the 1st long bar-shaped member 11 and the 2nd long bar-shaped member 12 to the outer peripheral surface of the 1st long bar-shaped member 11 and the 2nd long bar-shaped member 12 reduces. As a result, even if the degree of braking by the brakes 51 and 52 is increased, an increase in the frictional resistance between the long bar members 11 and 12 and the sheet material S can be suppressed, and the long bar members 11 and 12 are wound around. The possibility that the tension of the obtained sheet material S will be excessive can be reduced. In addition, the correlation between the angle β and the displacement d is further increased by bringing the first long bar-shaped member 11 and the second long bar-shaped member 12, which are free rollers, closer to the non-rotating bar, and the width direction of the sheet material S Can be adjusted more precisely.

  On the other hand, since the force for pressing the sheet material S against the outer peripheral surfaces of the long bar-shaped members 11 and 12 is reduced, the first long bar-shaped member 11 and the second long bar-shaped member 12 that are free rollers are driven by the travel of the sheet material S. Even if it rotates, the rotational force hardly acts on the sheet material S. Therefore, the position adjustment in the width direction of the sheet material S can be performed more precisely while suppressing the frictional resistance with the sheet material S by rotating the long bar-shaped members 11 and 12.

  In addition, the angle at which the traveling direction of the sheet material S from the first long rod-shaped member 11 toward the second long rod-shaped member 12 is inclined with respect to the traveling direction of the sheet material S flowing into the first long rod-shaped member from upstream. As α increases, the frictional resistance between the first long bar member 11 and the second long bar member 12 and the sheet material S increases. However, in this embodiment, since the drive roller 16 is provided, the frictional resistance between the first long bar-shaped member 11 and the second long bar-shaped member 12 and the sheet material S is reduced even when the angle α is increased. It is possible. Therefore, the angle α can be set large, and the position adjusting device 2 can be downsized.

  The adjustment of the motor 56 may be performed based on detection of the tension of the sheet material S downstream. In that case, a program for causing the computer to function as motor control means is stored in the CPU of the computer, and based on the electrical signal output from the tension detector 62, the sheet material S wound around the tension detecting roller 15 is stored. The motor 56 is controlled by comparing the tension with a predetermined value. For example, if the detected tension of the sheet material S is larger than a predetermined value, the speed of the sheet material S sent from the drive roller 16 to the first long bar-shaped member 11 by controlling the motor 56 is controlled by the second long bar-shaped member 12. The friction speed between the sheet material S and the long bar-like members 11 and 12 is decreased by increasing the traveling speed of the sheet material S downstream. When the detected tension of the sheet material S reaches an appropriate value, the speed of the sheet material S sent from the drive roller 16 to the first long bar-shaped member 11 is reduced to the sheet material S downstream of the second long bar-shaped member 12. The motor 56 can be controlled so as to be equal to the traveling speed.

  The position adjusting device 2 and the position adjusting method of the second embodiment both control the brakes 51 and 52 based on the output from the tension detector 62 and control the motor 56 based on the output from the tension detector 62. It is good also as a structure which performs only any one as a structure which performs this.

  The present invention has been described with reference to the preferred embodiments. However, the present invention is not limited to the above-described embodiments, and various improvements can be made without departing from the scope of the present invention as described below. And design changes are possible.

  For example, in the above description, the case where the rail 41 is attached to the gantry side (the support base portion 34) and the slider 42 is attached to the support portion side (the support base portion 22) is exemplified. The slider can be attached to the gantry side.

  Moreover, although the case where the sheet | seat material traveled from the upper direction to the downward direction was illustrated in the above, it is not limited to this, It can be set as the structure which makes a sheet | seat material drive | work from the downward direction upwards or a horizontal direction.

DESCRIPTION OF SYMBOLS 1 Position adjustment apparatus 2 Position adjustment apparatus 11 1st long bar-shaped member 12 2nd long bar-shaped member 15 Tension detection roller 16 Drive roller 21 Support plate (support part)
22 Support base part (support part)
31 Lower cross member (frame)
32 Upper crosspiece (frame)
33 Prop
34 Prop base section (frame)
41 rail (support displacement device)
42 Slider (supporting unit displacement device)
45 Cylinder device (support displacement device)
51 Brake 52 Brake 56 Motor 62 Tension Detector (Tension Detector)
P Virtual point S Sheet material

JP 2007-261245 A JP 2011-241010 A

Claims (6)

Using the first long bar-shaped member and the second long bar-shaped member arranged in parallel at intervals, a long sheet material is wound around the first long bar-shaped member, and then the first long bar-shaped member and the first long bar-shaped member are wound around the first long bar-shaped member. The first long rod-shaped member is passed through the gap between the two long rod-shaped members and is further wound around the second long rod-shaped member, and the positional relationship between the first long rod-shaped member and the second long rod-shaped member is maintained. by tilting the axial direction of the rod-like member and the second long bar-like member with respect to a direction perpendicular to the running direction of the sheet material, a position adjusting method of the sheet member for displacing the sheet material in the width direction,
Each of the first long bar-shaped member and the second long bar-shaped member is a free roller that can rotate following the travel of the sheet material ,
The tension of the sheet material is detected at the exit of the position adjustment portion which is a portion for adjusting the position in the width direction of the sheet material by the first long bar-shaped member and the second long bar-shaped member,
A sheet material position adjustment method , wherein the rotation of at least one of the first long bar-like member and the second long bar-like member is braked by a brake by control based on a detected tension value . 2. The sheet material position adjusting method according to claim 1, wherein the brake is attached to both the first long bar-shaped member and the second long bar-shaped member, and each of the brakes is controlled separately. . A drive roller that feeds the sheet material by driving a motor is provided at the entrance of the position adjusting portion, and the motor is controlled to change the traveling speed of the sheet material that is sent to the first long bar-shaped member. The position adjustment method of the sheet | seat material of Claim 1 or Claim 2 to do. A support part for supporting the first long bar-shaped member and the second long bar-shaped member in parallel with a space therebetween;
A pedestal for supporting the first long bar-shaped member and the second long bar-shaped member at a position higher than the installation surface via the support portion;
The first long bar-shaped member and the second long bar-shaped member are moved around the virtual point located between the first long bar-shaped member and the second long bar-shaped member by displacing the support portion with respect to the gantry. A position adjustment device for a sheet material, comprising a support displacement device that rotates,
Each of the first long bar-shaped member and the second long bar-shaped member is a free roller that is rotatable around an axis.
A brake for braking rotation of at least one of the first long bar-shaped member and the second long bar-shaped member ;
A tension detecting roller around which the sheet material is wound at the exit of the position adjustment portion, which is a portion for adjusting the position in the width direction of the sheet material by the first long bar-shaped member and the second long bar-shaped member;
A tension detection device for detecting the tension of the sheet material wound around the tension detection roller;
A sheet material position adjusting device, further comprising: brake control means for controlling the brake based on a tension value detected by the tension detecting device. The brake is attached to both the first long bar-like member and the second long bar-like member, and the brake control means controls each of the brakes separately. 4. A position adjusting device for a sheet material according to 4. The drive roller according to claim 4 or 5, further comprising a drive roller that winds the sheet material at an entrance of the position adjustment portion and feeds the sheet material toward the first long bar-like member by driving a motor. The position adjustment apparatus of the sheet | seat material of description.

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