JP2015107853A - Transfer position correction device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a transfer position correction device which is preferable for replacement conducted when a space is limited in a width direction in an existing line.SOLUTION: In a transfer position correction device 100, a transfer position correction roller 111, a member body 112a of a roller support member 112, and a direct advance cam 113 are provided in parallel to each other. The direct advance cam 113 is used as a driven member and a movable contact 122 is moved along a length direction of those components to control an inclination angle of the transfer position correction roller 111, which is supported by the roller support member 112 through the direct advance cam 113, and correct a transfer position of a sheet S in a width direction.

Description

  The present invention relates to a conveyance position correcting apparatus.

  As a method of correcting the conveyance position in the width direction of a sheet when conveying a long sheet in the length direction, one of the guide rollers for guiding the sheet is used as a conveyance position correction roller, and the sheet width is inclined by tilting it. A technique for adjusting the conveyance position in the direction is known.

  For example, in Patent Document 1, in a textile printing apparatus, one of rollers for guiding a cloth is tilted by a cam mechanism provided at one end thereof, and the conveyance position in the width direction of the cloth conveyed thereby is corrected. It is disclosed.

  In Patent Documents 2 and 3, in an image forming apparatus such as a copying machine, one of rollers on which an endless flat belt for paper conveyance is wound is tilted by a cam mechanism provided at one end thereof. The correction of the traveling position of the flat belt in the width direction is disclosed.

JP 2003-201665 A JP 2008-233286 A JP 2006-76784 A

  For example, in a product packaging line, a conveyance position correction device including a conveyance position correction roller for correcting the conveyance position in the width direction is provided in the middle of the conveyance path of a packaging film sheet.

  Although this transfer position correcting device is installed in a new product packaging line, the size of the device is not particularly limited as long as the installation space required in the line design stage can be secured.

  However, when replacing a new transfer position correction device in an existing product packaging line, the size of the device must be within the installation space of the conventional equipment so as not to affect the layout of other equipment. It is restricted to fit. In particular, when the space in the width direction of the product packaging line, that is, the direction orthogonal to the film sheet conveyance direction is narrow, the conveyance position correction apparatus in which the tilt drive mechanism is provided at one end of the conveyance position correction roller inevitably has a width direction. Since the size of the apparatus becomes large, it is not suitable for replacement in an existing product packaging line.

  The subject of this invention is providing the conveyance position correction apparatus suitable for the exchange use when the space of the width direction has restrictions in the existing line.

The present invention is a transport position correction device for correcting the transport position in the width direction of a sheet when transporting a long sheet in the length direction,
A conveyance position correction roller around which a sheet to be conveyed is wound;
A pair of member main bodies provided along the length direction of the transport position correction roller, and a pair of bearings for supporting the transport position correction roller provided to protrude from the member main body toward the transport position correction roller. A roller support member that is pivotally supported so as to be able to tilt together with the transport position correction roller.
A rectilinear cam provided on the roller support member so as to extend along the length direction of the member main body and to protrude from the member main body to one side on which the transport position correction roller and the roller support member tilt.
A movable contact provided so as to be capable of linear reciprocation along the length direction of the member main body of the roller support member while being in contact with the track surface of the rectilinear cam;
A side edge position sensor that detects a position of a side edge of a sheet that is wound around and conveyed by the conveyance position correction roller;
With
By moving the movable contact so as to correspond to the position of the side edge of the sheet detected by the side end position sensor, the contact position of the linear contact cam with the track surface of the linear cam is controlled. By controlling the tilt angle of the conveyance position correction roller supported by the roller support member via the straight cam, the conveyance position in the width direction of the sheet is corrected.

  According to the present invention, the conveyance position correcting roller, the member main body of the roller support member, and the rectilinear cam are provided in parallel, the rectilinear cam is used as the driven member, and the movable contact is along the length direction thereof. By controlling the tilting angle of the conveyance position correction roller supported by the roller support member via the linear cam, the sheet conveyance position in the width direction is corrected to reduce the apparatus size in the width direction. In existing lines, even if there are restrictions on the space in the width direction, it can be suitably used for replacement.

It is a schematic side view of the product packaging line which concerns on embodiment. It is a cross-sectional view of a sheet bag making part. (A) is a front view of a sheet roll in which a heat-shrinkable film sheet is wound in the center in the length direction of the paper tube, and (b) is a view in which the heat-shrinkable film sheet is biased to one side in the length direction of the paper tube. It is a front view of the sheet roll wound up. It is a front view of the sheet roll in which the convex part was formed in one side end, and the recessed part was formed in the other side end. It is explanatory drawing about the malfunction by the shift | offset | difference of the conveyance position of the width direction of a heat-shrink film sheet. It is a perspective view of a conveyance position correction apparatus. It is a front view of a conveyance position correction apparatus. It is sectional drawing which shows the winding state of the heat-shrink film sheet to a conveyance position correction roller. It is explanatory drawing of the tilt angle of a conveyance position correction roller. (A) And (b) is the 1st explanatory view showing the correction method of the conveyance position of the heat contraction film sheet by the conveyance position correction device. (A) And (b) is the 2nd explanatory view showing the correction method of the conveyance position of the heat contraction film sheet by the conveyance position correction device. It is a figure which shows the movable range of a conveyance position correction roller in case the roller support member is pivotally supported in the end part corresponding position of the conveyance position correction roller in a member main body. It is a perspective view of the modification of a conveyance position correction apparatus. It is a front view of the other modification of a conveyance position correction apparatus.

  Hereinafter, embodiments will be described in detail based on the drawings.

  FIG. 1 shows a product packaging line L according to the embodiment.

  The product packaging line L according to the embodiment includes a sheet supply unit 10, a sheet conveyance unit 20, a first product conveyance unit 30, a sheet bag making unit 40, a second product conveyance unit 50, a sheet fusing unit 60, and a sheet contraction unit 70. It consists of

  The sheet supply unit 10 includes a roll shaft 11 extending horizontally, and supports the sheet roll R of the heat-shrinkable film sheet S by the roll shaft 11. Examples of the heat shrinkable film sheet S include those obtained by uniaxially or biaxially stretching a polyvinyl chloride resin, a polypropylene resin, a polyethylene resin, a polystyrene resin, a polyethylene terephthalate resin, or the like. The width of the heat-shrinkable film sheet S is, for example, 195 to 230 mm, and the thickness is, for example, 11 μm. An unused sheet roll R is wound with, for example, 4000 m of a heat-shrinkable film sheet S, and has an outer diameter of, for example, 270 mm.

  Each of the sheet conveying units 20 includes a plurality of guide rollers 21 extending horizontally, and the plurality of guide rollers 21 includes a heat-shrinkable film sheet S drawn from a sheet roll R that is pivotally supported by the sheet supply unit 10. Is wound, and the heat-shrinkable film sheet S is conveyed in the length direction by the plurality of guide rollers 21. The conveyance speed of the heat-shrinkable film sheet S at this time is 0.2 to 0.5 m / s, for example. Further, the plurality of guide rollers 21 include a hole forming roll having a large number of needles protruding radially on the outer periphery, and deaeration holes are formed in the heat-shrinkable film sheet S by the hole forming roll. In addition, this deaeration hole is for discharging | emitting internal air when heat-shrinking the heat-shrinkable film sheet S after packaging the product P with the heat-shrinkable film sheet S in a post process.

  The 1st product conveyance part 30 is comprised by the conveyor belt, and conveys the product P which is a to-be-packaged object in a row at fixed intervals. The conveyance speed of the product P at this time is 0.2-0.5 m / s similarly to the conveyance speed of the heat shrink film sheet S, for example.

  The sheet bag making unit 40 includes a cylindrical bag making unit body 41 provided so as to be continuous with the first product transport unit 30 and a heat sealing machine 42 provided at the lower center thereof, and the bag making unit body. 41, the heat-shrinkable film sheet S conveyed from the sheet conveying unit 20 and the product P conveyed from the first product conveying unit 30 are respectively introduced. As shown in FIG. The product P is wrapped from both sides by the bag making part main body 41, and the overlapped part W is formed by superimposing the end parts on both sides, and the overlapped part W is heated and welded by the heat sealing machine 42 to form a cylinder.

  The second product transport unit 50 includes upper and lower transport belts 51 and 52 provided so as to be continuous with the bag making body 41 of the sheet bag making unit 40, and the upper and lower transport belts 51 and 52 thereof. The product P wrapped in the cylindrical heat-shrink film sheet S sent from the sheet bag making unit 40 is sandwiched and conveyed from above and below.

  The sheet fusing unit 60 includes a conveying belt 61 provided continuously to the second product conveying unit 50, an up and down movable upper fusing member 62 and an immovable lower fusing member 63 provided so as to sandwich the conveying belt 61. The upper and lower fusing members 62 and 63 are used for fusing the heat-shrinkable film sheet S between the products P on the conveyor belt 61, sealing both sides thereof, and storing the products P. A bag body of the shrink film sheet S is formed.

  The sheet contraction unit 70 is configured by a heating furnace 72 including a transport mechanism 71 provided so as to be continuous with the sheet fusing unit 60, and a bag body of the heat contraction film sheet S in which the product P is stored in the heating furnace 72. Heat while transporting. At this time, the bag of the heat-shrinkable film sheet S shrinks along the product shape. Note that the air in the bag of the heat-shrinkable film sheet S is discharged from deaeration holes formed in the heat-shrinkable film sheet S in the file transport unit.

  Here, as the sheet roll R set in the sheet supply unit 10, a roll wound around a paper tube 81 longer than the width of the heat shrinkable film sheet S is usually used, but as shown in FIG. The heat-shrinkable film sheet S is wound around the center of the paper tube 81 in the length direction, or the heat-shrinkable film sheet S is wound in one direction along the length of the paper tube 81 as shown in FIG. Since there is a difference in the winding position of the heat shrinkable film sheet S between the sheet rolls R, even if the length of the paper tube 81 is constant, the protruding length of the paper tube 81 on both sides thereof Is not constant. Therefore, even if the transport position in the width direction of the heat-shrinkable film sheet S is set to a predetermined position, when the sheet roll R is replaced, the heat-shrinkable film sheet S is transported in the width direction in the sheet transport unit 20. The position may be changed and deviate from the predetermined position.

  Further, depending on the sheet roll R, the winding position of the heat-shrinkable film sheet S is gradually shifted along the length direction, and as shown in FIG. 4, a convex portion is formed on one side end and a concave portion is formed on the other side end. In the case where such a sheet roll R is used, even if the transport position in the width direction of the heat-shrinkable film sheet S is initially set to a predetermined position, the heat-shrinkable film sheet S in the sheet transport unit 20 is used. The conveyance position in the width direction is changed with time and deviates from the predetermined position. And if the conveyance position of the width direction of the heat-shrink film sheet S in the sheet conveyance part 20 shift | deviates from a predetermined position, for example, as shown in FIG. And the heating position by the heat sealing machine 42 are also shifted in the width direction, and in some cases, the portion where the heat shrinkable film sheet S is not superimposed is heated by the heat sealing machine 42, and as a result, the heat shrinkable film sheet There is a possibility of causing a sealing failure in which both end portions of S remain without being heat-welded.

  Therefore, in the product packaging line L according to the embodiment, the transport position correcting device 100 for correcting the transport position in the width direction of the heat shrinkable film sheet S when the long heat shrinkable film sheet S is transported in the length direction. Is provided in the middle of the conveyance path of the heat-shrinkable film sheet S by the sheet conveyance unit 20.

  6 and 7 show the transport position correcting apparatus 100. FIG.

  The transport position correcting apparatus 100 includes a tilting unit 110 including a transport position correcting roller 111, an actuator unit 120 that tilts the tilting unit 110, and a side end that detects a side end position of the heat-shrinkable film sheet S being transported. The position sensor 130 includes a tilt control unit 140 to which the actuator unit 120 and the side end position sensor 130 are connected.

  The tilting unit 110 includes a transport position correction roller 111 provided so as to extend in the lateral direction and a roller support member 112 that supports the transport position correction roller 111.

  The transport position correction roller 111 has a roller body made of an elastic body such as rubber or urethane, and has an outer diameter of, for example, 60 mm. As shown in FIG. 8, the heat shrinkable film sheet S extends obliquely upward on the upstream side and the heat shrinkable film sheet S extends horizontally on the downstream side, as shown in FIG. S is wound. Therefore, the winding angle α of the heat shrink film sheet S around the transport position correction roller 111 is the same as the inclination angle β extending obliquely upward of the heat shrink film sheet S on the upstream side of the transport position correction roller 111, for example α = Β = 65 to 70 °.

  The roller support member 112 is stretched from the end of the member main body 112a toward the lower conveyance position correction roller 111 from the end of the member main body 112a above the conveyance position correction roller 111 along the length direction thereof. A pair of bearing portions 112b provided integrally so as to be taken out, and the conveyance position correction roller 111 is supported by the pair of bearing portions 112b so as to be rotatable. Further, the roller support member 112 is a device (not shown) by a support shaft 115 provided so as to penetrate the center in the length direction of the member main body 112a which is a position corresponding to the center in the length direction of the transport position correction roller 111. The main body is pivotally supported around the support shaft 115 so as to be tiltable together with the transport position correction roller 111.

  On the front surface of the roller support member 112, an elongated plate extends along the length direction of the member main body 112 a and protrudes from the member main body 112 a to one side where the conveyance position correction roller 111 and the roller support member 112 tilt, that is, upward. A straight traveling cam 113 is provided. The track surface 114 on the upper surface of the rectilinear cam 113 has a central portion 114a formed in a plane parallel to the length direction of the roller support member 112, and outer side portions 114b and 114c on both sides thereof continue to the central portion 114a. It is formed in the inclined surface extended diagonally upward toward the outer side.

  The actuator unit 120 is provided above the tilting unit 110 so as to extend in parallel with the tilting unit 110, and below the driving unit 121 so as to contact the track surface 114 of the rectilinear cam 113. The movable contact 122 is attached and fixed to an apparatus main body (not shown). In addition, coil springs 123 are interposed at both ends of the drive unit 121 between the member main body 112a of the roller support member 112 in the tilting unit 110, respectively.

  The driving unit 121 linearly reciprocates the movable contact 122 in the length direction by ball screw driving or belt driving using a servo motor. Therefore, the movable contact 122 is provided so as to be capable of linear reciprocation along the length direction of the member main body 112a of the roller support member 112 while being in contact with the track surface 114 of the rectilinear cam 113.

  The side end position sensor 130 is formed in a U-shape, and is provided so as to sandwich one side end portion in the width direction of the heat-shrinkable film sheet S extending downstream of the transport position correction roller 111. The position of the side end of the heat-shrinkable film sheet S that is wound around the transport position correction roller 111 and transported is detected. The side edge position sensor 130 may continuously and accurately detect the position of the side edge of the heat shrinkable film sheet S, and the position of the side edge of the heat shrinkable film sheet S is divided in the width direction. Alternatively, it may be detected which of a plurality of zones belongs. Hereinafter, the side where the side end position sensor 130 in the width direction is provided is one side, and the opposite side is the other side.

  The tilt control unit 140 drives the driving unit 121 of the actuator unit 120 to move the movable contact 122 so as to correspond to the position of the side end of the heat shrinkable film sheet S detected by the side end position sensor 130. By controlling the contact position of the movable contact 122 with the track surface 114 of the linear cam 113, the tilt angle θ of the transport position correcting roller 111 supported by the roller support member 112 via the linear cam 113 in the tilting part 110 is set. It is configured to control and correct the conveyance position of the heat shrinkable film sheet S in the width direction. As shown in FIG. 9, the tilt angle θ of the transport position correction roller 111 is a horizontal transport position correction roller 111 when the position of the side end of the heat shrink film sheet S detected by the side end position sensor 130 is a predetermined position. Is a tilt angle with reference to a tilt angle θ = 0 °, for example, −3 ° ≦ θ ≦ 3 °. The movable contact 122 may be continuously moved so as to correspond to the position of the side end of the heat shrinkable film sheet S, and the movable contact may be corresponded to the position of the side end of the heat shrinkable film sheet S. The child 122 may be moved in multiple stages.

  By the way, when a new transport position correction device is replaced in an existing product packaging line, if the space in the width direction of the product packaging line is limited, transport with a tilt drive mechanism provided at one end of the transport position correction roller Since the position correction apparatus inevitably increases the apparatus size in the width direction, it is not suitable for replacement in such a case. However, according to the transport position correcting device 100 having the above-described configuration, the transport position correcting roller 111, the member main body 112a of the roller support member 112, and the rectilinear cam 113 are provided in parallel, and the rectilinear cam 113 is used as a driven member. Then, by moving the movable contactor 122 along their length direction, the tilt angle θ of the transport position correcting roller 111 supported by the roller support member 112 via the linearly moving cam 113 is controlled to perform heat shrinkage. Since the conveyance position in the width direction of the film sheet S is corrected, the apparatus size in the width direction is small, and in an existing product packaging line, it can be suitably used for replacement even when the space in the width direction is limited.

  In the transport position correcting device 100, the movable contact 122 is moved by driving the drive unit 121 of the actuator unit 120 so as to correspond to the position of the side end of the heat shrinkable film sheet S detected by the side end position sensor 130. When the contact position of the movable contact 122 to the track surface 114 of the straight cam 113 is the horizontal plane of the central portion 114a, the transport position correction roller 111 is included as shown in FIGS. 7 and 10A and 10B. The entire tilting unit 110 is horizontal, that is, the tilt angle θ of the transport position correcting roller 111 is maintained at 0 °, and the transport position of the heat-shrinkable film sheet S is also maintained without being corrected. Therefore, the horizontal surface of the central portion 114a of the track surface 114 of the straight cam 113 is a portion that does not tilt the transport position correction roller 111 even when the movable contact 122 moves. At this time, the coil springs 123 on one side and the other side have a natural length.

  On the other hand, when the position of contact of the movable contact 122 with the track surface 114 of the rectilinear cam 113 is the inclined surface of the outer side portion 114b on one side, as shown in FIG. The whole is tilted so that one side is low and the other side is high, and accordingly, the conveyance position of the heat-shrinkable film sheet S is shifted to one side and corrected. At this time, the coil spring 123 on one side is extended and the coil spring 123 on the other side is compressed.

  Conversely, when the contact position of the movable contact 122 with respect to the track surface 114 of the rectilinear cam 113 is the inclined surface of the outer portion 114c on the other side, the transport position correction roller 111 is included as shown in FIG. The entire tilting part 110 is tilted so that one side is high and the other side is low, and accordingly, the conveyance position of the heat-shrinkable film sheet S is shifted to the other side and corrected. At this time, the coil spring 123 on one side is compressed and the coil spring 123 on the other side is expanded.

  In the transport position correcting device 100 of the above embodiment, the roller support member 112 is pivotally supported at a position corresponding to the center in the length direction of the transport position correcting roller 111 in the member main body 112a. The roller support member 112 may be pivotally supported at a position corresponding to an end portion in the length direction of the transport position correction roller 111 in the member main body 112a. Here, when the roller support member 112 is pivotally supported by the support shaft 115 at the position corresponding to the center of the transport position correction roller 111 in the member main body 112a, the movable range of the transport position correction roller 111 shown in FIG. When compared in the angle range, the movable range of the transport position correcting roller 111 shown in FIG. 12 when the roller support member 112 is pivotally supported by the support shaft 115 at the end portion corresponding position of the transport position correcting roller 111 in the member main body 112a. Is much smaller than. Therefore, from the viewpoint of reducing the size of the apparatus and enhancing the applicability to the replacement use of the transport position correcting apparatus 100 in the existing product packaging line L, the roller support member 112 is provided in the member main body 112a as in the above embodiment. It is preferably supported by a support shaft 115 at a position corresponding to the center of the transport position correction roller 111.

  Moreover, in the conveyance position correction apparatus 100 of the said embodiment, the structure where the rectilinear cam 113 was provided so that it might protrude above the member main body 112a of the roller support member 112 provided along the conveyance position correction roller 111, and However, the present invention is not particularly limited to this, and as shown in FIG. 13, the rectilinear cam 113 extends downward from the member main body 112 a of the roller support member 112 provided along the transport position correction roller 111. The structure provided so that it may come out may be sufficient. Here, assuming replacement of the transport position correcting device 100 in the existing product packaging line L, in addition to the space constraint in the width direction, the space constraint in the transport direction of the heat shrink film sheet S from the positional relationship with the front and rear equipment. There are many cases. On the other hand, there is often a relatively large space in the vertical direction. Therefore, like the transport position correcting device 100 of the above embodiment and the transport position correcting device 100 shown in FIG. 12, the tilting drive mechanism of the transport position correcting roller 111 is located above or below the transport position correcting roller 111 with sufficient space. It is preferable that it is comprised in the side.

  In the transport position correcting device 100 of the above embodiment, the track surface 114 of the rectilinear cam 113 includes the central portion 114a that does not tilt the transport position correcting roller 111 even when the movable contact 122 moves. The present invention is not particularly limited thereto, and as shown in FIG. 14, the track surface 114 of the rectilinear cam 113 is formed so as to draw a parabola, for example, when viewed from the front, and the conveyance position is corrected as the movable contact 122 moves. The tilt angle θ of the roller 111 may be continuously changed. Here, in the case where there is a certain allowable width in the transport position in the width direction of the heat-shrinkable film sheet S, from the viewpoint of performing stable transport with less fluctuation in the transport position in the width direction of the heat-shrinkable film sheet S, The configuration of the transport position correcting device 100 of the above embodiment that corrects the transport position in the width direction of the heat-shrinkable film sheet S is preferable, while the transport position in the width direction of the heat-shrink film sheet S is preferable. When high accuracy is required, the configuration of the transport position correcting device 100 shown in FIG. 12 that constantly corrects the transport position in the width direction of the heat-shrinkable film sheet S is preferable.

  In the transport position correcting apparatus 100 of the above embodiment, the track surface 114 of the rectilinear cam 113 is formed to have a downwardly convex shape when viewed from the front, but is not particularly limited thereto. As long as the conveyance position correction roller 111 is tilted, other shapes may be used.

  Moreover, in the conveyance position correction apparatus 100 of the said embodiment, it was set as the structure provided so that the conveyance position correction roller 111 extended in a horizontal direction, However, it is the structure provided so that a conveyance position correction roller may extend in another direction. There may be.

  Moreover, in the said embodiment, although it was set as the structure which installed the conveyance position correction apparatus 100 which corrects the conveyance position of the width direction of the heat shrink film sheet S in the product packaging line L, it is not limited to this in particular, Other The same conveyance position correcting device that corrects the conveyance position in the width direction of the sheet may be installed in this line.

  The present invention is useful for a conveyance position correcting apparatus.

L Product packaging line P Product R Sheet roll S Heat shrink film sheet W Superposition part 10 Sheet supply part 11 Roll shaft 20 Sheet conveyance part 21 Guide roller 30 First product conveyance part 40 Bag making part 41 Bag making part main body 42 Heat seal Machine 50 Second product conveying unit 51 Upper conveying belt 52 Lower conveying belt 60 Sheet fusing unit 61 Conveying belt 62 Upper fusing member 63 Lower fusing member 70 Sheet shrinking unit 71 Conveying mechanism 72 Heating furnace 81 Paper tube 100 Conveying position correcting device 110 Inclination part 111 Conveyance position correction roller 112 Roller support member 112a Member main body 112b Bearing part 113 Linear cam 114 Track surface 114a Central part 114b, 114c Outer part 115 Support shaft 120 Actuator part 121 Drive part 122 Movable contactor 123 Coil spring 130 side End position sensor 14 0 Tilt control unit

Claims (4)

A transport position correcting device for correcting a transport position in the width direction of a sheet when transporting a long sheet in the length direction,
A conveyance position correction roller around which a sheet to be conveyed is wound;
A pair of member main bodies provided along the length direction of the transport position correction roller, and a pair of bearings for supporting the transport position correction roller provided to protrude from the member main body toward the transport position correction roller. A roller support member that is pivotally supported so as to be able to tilt together with the transport position correction roller.
A rectilinear cam provided on the roller support member so as to extend along the length direction of the member main body and to protrude from the member main body to one side on which the transport position correction roller and the roller support member tilt.
A movable contact provided so as to be capable of linear reciprocation along the length direction of the member main body of the roller support member while being in contact with the track surface of the rectilinear cam;
A side edge position sensor that detects a position of a side edge of a sheet that is wound around and conveyed by the conveyance position correction roller;
With
By moving the movable contact so as to correspond to the position of the side edge of the sheet detected by the side end position sensor, the contact position of the linear contact cam with the track surface of the linear cam is controlled. The conveyance position correcting apparatus configured to correct the conveyance position in the width direction of the sheet by controlling the tilt angle of the conveyance position correction roller supported by the roller support member via the linear cam. In the conveyance position correction apparatus according to claim 1,
The said roller support member is a conveyance position correction apparatus pivotally supported in the position corresponding to the center of the length direction of the said conveyance position correction roller in the said member main body. In the conveyance position correction apparatus according to claim 1 or 2,
The transport position correction roller is provided to extend in the lateral direction,
The conveyance position correction apparatus provided so that the said rectilinear cam may protrude above the said member main body of the said roller support member provided along the said conveyance position correction roller. In the conveyance position correction apparatus as described in any one of Claims 1 thru | or 3,
The track position of the linear cam includes a portion that does not tilt the transport position correction roller even when the movable contact moves.

Images