US20090072473A1 - Sheet guide apparatus - Google Patents
Sheet guide apparatus Download PDFInfo
- Publication number
- US20090072473A1 US20090072473A1 US12/283,193 US28319308A US2009072473A1 US 20090072473 A1 US20090072473 A1 US 20090072473A1 US 28319308 A US28319308 A US 28319308A US 2009072473 A1 US2009072473 A1 US 2009072473A1
- Authority
- US
- United States
- Prior art keywords
- sheet
- guide body
- guide
- plate
- rotary guide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H9/00—Registering, e.g. orientating, articles; Devices therefor
- B65H9/08—Holding devices, e.g. finger, needle, suction, for retaining articles in registered position
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H11/00—Feed tables
- B65H11/007—Feed tables with front stop arrangements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H5/00—Feeding articles separated from piles; Feeding articles to machines
- B65H5/36—Article guides or smoothers, e.g. movable in operation
- B65H5/38—Article guides or smoothers, e.g. movable in operation immovable in operation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2220/00—Function indicators
- B65H2220/09—Function indicators indicating that several of an entity are present
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2404/00—Parts for transporting or guiding the handled material
- B65H2404/10—Rollers
- B65H2404/15—Roller assembly, particular roller arrangement
- B65H2404/153—Arrangements of rollers facing a transport surface
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2404/00—Parts for transporting or guiding the handled material
- B65H2404/60—Other elements in face contact with handled material
- B65H2404/69—Other means designated for special purpose
- B65H2404/694—Non driven means for pressing the handled material on forwarding or guiding elements
- B65H2404/6942—Non driven means for pressing the handled material on forwarding or guiding elements in sliding contact with handled material
Definitions
- the present invention relates to a sheet guide apparatus which guides a conveyed sheet to a front lay.
- the sheet is not always flat.
- the front edge of the sheet may deform by, e.g., waving, warping, or curling. If the sheet deforms in this manner, it does not abut against a front lay but may ride over it.
- a sheet guide apparatus of this type is provided with a sheet pressing device, downstream of a feedboard in a sheet convey direction, which straightens a deforming sheet fed onto the feedboard.
- the sheet can be abutted against the front lay reliably, positioned by the front lay, and corrected from traveling skew, so that the sheet can be transferred to a sheet transfer device reliably.
- the sheet pressing device is a sheet pressing plate.
- the sheet pressing device guides a sheet within a wide range in a convey direction and a direction perpendicular to the convey direction. Hence, if the sheet is thin, deformation occurring in the thin sheet can be corrected. If the sheet is thick, when thick sheets are conveyed to overlap like scales, a preceding sheet may raise the sheet pressing plate, so that the next sheet that follows cannot be appropriately guided to the front lay. As the sheet and sheet pressing plate rub against each other, the sheet surface can be damaged easily. Particularly, when the sheet is a film or the like that can readily be damaged, this sheet pressing plate cannot be employed.
- the guide member is a roller.
- the roller presses a preceding sheet through point contact the next sheet that follows can be reliably guided to the front lay.
- an impact generated upon abutment of the thin sheet against the front lay can form wrinkles in the sheet, and deformation occurring in the sheet cannot be corrected.
- FIGS. 1A and 1B are plan views of a sheet guide apparatus according to one embodiment of the present invention.
- FIG. 2 is a plan view of the main part of a plate-like guide body shown in FIG. 1A ;
- FIG. 3A is a view seen from the arrow III(A) in FIG. 3B ;
- FIG. 3B is a sectional view taken along the line III(B)-III(B) in FIG. 1B ;
- FIG. 4 is a sectional view taken along the line IV-IV in FIG. 3B ;
- FIG. 5 is a sectional view taken along the line V-V in FIG. 1A ;
- FIG. 6A is a view seen from the arrow VI(B) in FIG. 6B ;
- FIG. 6B is a sectional view taken along the line VI(B) in FIG. 1B ;
- FIG. 7A is a sectional view taken along the line VII(A) in FIG. 1A ;
- FIG. 7B is a view seen from the VII(B) in FIG. 7A .
- FIGS. 1A to 7B A sheet guide apparatus according to one embodiment of the present invention will be described with reference to FIGS. 1A to 7B .
- a sheet guide apparatus 1 comprises a feedboard 2 (sheet guide member) serving as a sheet guide member to which a sheet is conveyed from a feeder board (not shown), front lays 3 which are provided at the downstream (direction of an arrow A) end of the feedboard 2 in the sheet convey direction and abut against the downstream edge of the sheet in the convey direction to regulate the movement of the sheet in the convey direction, and a guide device 4 which guides the sheet to the front lays 3 .
- a feedboard 2 sheet guide member serving as a sheet guide member to which a sheet is conveyed from a feeder board (not shown)
- front lays 3 which are provided at the downstream (direction of an arrow A) end of the feedboard 2 in the sheet convey direction and abut against the downstream edge of the sheet in the convey direction to regulate the movement of the sheet in the convey direction
- a guide device 4 which guides the sheet to the front lays 3 .
- Each front lay 3 comprises a pair of lays 3 a against which the leading edge (downstream edge in the sheet convey direction) of the sheet abuts, a lay hook 3 b which is arranged above the sheet and guides the sheet to the lays 3 a , and a lever device 3 c ( FIG. 3B ) which supports the lays 3 a and lay hook 3 b.
- the pair of lays 3 a are disposed adjacent to each other.
- the lay hook 3 b is disposed between the pair of lays 3 a.
- the guide device 4 comprises five plate-like guide bodies 5 A to 5 E spreading along the upper surface of the sheet and extending in a direction perpendicular to the sheet convey direction, and a plurality of rotary guide bodies 6 which are supported to be rotatable and movable in directions to separate from and come close to the upper surface of the sheet and the outer surfaces of which are in contact with the upper surface of the sheet.
- the plate-like guide bodies 5 A to 5 E are supported to be movable in directions to separate from and come close to the upper surface of the sheet.
- Each rotary guide body 6 comprises a wheel made of a plastic material. The center of the outer surface of the rotary guide body 6 swells, as shown in FIG. 6A .
- a prismatic stay 7 extends between a pair of sheet feed frames 8 A and 8 B.
- Support blocks 9 A and 9 B fixed to the sheet feed frames 8 A and 8 B rotatably support columnar two ends 7 a and 7 b of the stay 7 .
- the stay 7 is provided with support devices 10 A and 10 B (plate-like guide body adjusting devices) at its two ends.
- the support devices 10 A and 10 B support the plate-like guide bodies 5 A to 5 E to be movable and adjustable in the vertical direction (directions to separate from and come close to the upper surface of the sheet).
- the support devices 10 A and 10 B have the same structure. Hence, the support device 10 B will be described hereinafter, and the support device 10 A will be described where necessary.
- the support device 10 B comprises a first adjusting bolt 11 (support body adjusting member) which moves the plate-like guide bodies 5 A to 5 E vertically, a moving body 12 which moves vertically upon rotation of the adjusting bolt 11 , a support body 14 which supports the plate-like guide bodies 5 A to 5 E through a support plate 13 and moves integrally with the moving body 12 , and a fixing bolt 16 (support body fixing member) which fixes the support body 14 to the stay 7 through a first fixing block 15 .
- a first adjusting bolt 11 support body adjusting member
- moving body 12 which moves vertically upon rotation of the adjusting bolt 11
- a support body 14 which supports the plate-like guide bodies 5 A to 5 E through a support plate 13 and moves integrally with the moving body 12
- a fixing bolt 16 support body fixing member
- a large-diameter portion 11 b, threaded portion 11 d, and small-diameter portion 11 c are sequentially formed integrally with a knob 11 a (manipulating portion) at the upper end.
- the threaded portion 11 d threadably engages with a threaded hole 7 a of the stay 7 .
- the moving body 12 with a U-shaped section has a pair of opposing portions 12 b which have insertion holes 12 a where the adjusting bolt 11 is to be inserted and which oppose each other.
- the moving body 12 is supported by the stay 7 through the adjusting bolt 11 such that the stay 7 is located between the pair of opposing portions 12 b.
- the moving body 12 moves together with the adjusting bolt 11 vertically with respect to the stay 7 .
- bolts 18 a and 18 b attach the support body 14 to the pair of opposing portions 12 b of the moving body 12 .
- the support body 14 has a vertically long elongated hole 14 a in which the fixing bolt 16 is to be inserted.
- the structure comprising the moving body 12 and support body 14 is attached to sandwich the stay 7 . When manipulating the adjusting bolt 11 , this structure moves vertically as it is guided by the side surface of the stay 7 .
- bolts 19 attach the fixing block 15 to the stay 7 .
- the fixing block 15 has a threaded hole 15 a which threadably engages with the fixing bolt 16 .
- the support body 14 is located between a knob 16 a of the fixing bolt 16 and the fixing block 15 .
- the knob 16 a of the fixing bolt 16 is pivoted to loosen the fixing bolt 16 , thus disengaging the support body 14 .
- the adjusting bolt 11 is rotated clockwise/counterclockwise to move the moving body 12 in the vertical direction.
- the support body 14 moves in the vertical direction to follow the moving body 12 .
- the fixing bolt 16 After moving the support body 14 in the vertical direction, the fixing bolt 16 is fastened, so that a large-diameter portion 16 b of the fixing bolt 16 and the fixing block 15 fix the support body 14 .
- the elongated hole 14 a of the support body 14 is formed so that the support body 14 can be fixed by the fixing bolt 16 even when the adjusting bolt 11 adjusts the position of the support body 14 .
- each of the plate-like guide bodies 5 A to 5 E has a proximal end 5 a extending perpendicularly to the upper surface of the sheet, and a guide portion 5 b extending in the horizontal direction, thus forming an L shape with a curved section.
- the guide portion 5 b comes into contact with a sheet P to guide it to the front lays 3 .
- Bolts 21 attach the proximal ends 5 a of the respective plate-like guide bodies 5 A to 5 E to the support plate 13 such that the guide portions 5 b are in contact with the upper surface of the sheet P.
- that end of each guide portion 5 b which is downstream in the sheet convey direction has notches 5 c which form space portions opposing the plurality of rotary guide bodies 6 , and guide surfaces 5 d corresponding to the portions among the notches 5 c.
- the position of the support body 14 is adjusted, and the gap amount is adjusted between the plate-like guide bodies 5 A to 5 E and the feedboard 2 .
- the support body 14 is movable in the vertical direction, and the guide surfaces 5 d of the plate-like guide bodies 5 A to 5 E are movable in the direction perpendicular to the upper surface of the sheet P.
- the parallel degree between the guide surfaces 5 d and the upper surface of the sheet P is maintained.
- the entire surfaces of the guide surfaces 5 d come into contact with a sheet of any thickness evenly, so that the guide surfaces 5 d can guide the sheet P reliably.
- Wrinkles are prevented from being formed in the sheet P by an impact applied when the sheet P abuts against the front lays 3 . Also, deformation of the sheet P such as wrinkles or waves existing in the sheet P before the sheet P abuts against the front lays 3 can be corrected reliably.
- the adjusting bolt 11 , moving body 12 , and support body 14 constitute a plate-like guide adjusting device.
- the fixing block 15 and fixing bolt 16 constitute a plate-like guide fixing device.
- Side lay devices 23 are known side lay devices serving as widthwise direction alignment devices, and align the sheet in a direction perpendicular to the sheet convey direction when the downstream end of the sheet in the sheet convey direction abuts against the front lays 3 .
- FIGS. 6A and 6B A support structure for each rotary guide body 6 will be described with reference to FIGS. 6A and 6B .
- a bolt 26 fixes a second fixing block 25 to the stay 7 .
- the fixing block 25 has a horizontal portion 27 with a threaded hole 27 a and a vertical portion 28 with a threaded hole 28 a , thus forming an L shape.
- a pair of opposing axial supports 28 b extend downward from the lower end of the vertical portion 28 .
- the pair of axial supports 28 b of the vertical portion 28 swingably support a shaft portion 30 a projecting at the center of a lever 30 (support member).
- the rotary guide body 6 is rotatably supported at one end of the lever 30 through a shaft 31 .
- a spring shoe recess 30 b is formed between the end and center of the lever 30 .
- a second adjusting bolt 32 (support member adjusting member) threadably engages with the threaded hole 27 a of the fixing block 25 .
- the distal end of the adjusting bolt 32 abuts against the other end of the lever 30 to regulate the pivot motion of the lever 30 .
- a knob 32 a is integrally fixed to the upper end of the adjusting bolt 32 .
- a lock nut 32 b threadably engages with the adjusting bolt 32 .
- a spring pressure adjusting bolt 33 (biasing force adjusting member) threadably engaging with the threaded hole 28 a of the fixing block 25 thredably engages with a nut 34 .
- a compression coil spring 35 (biasing member) is elastically mounted between the distal end of the bolt 33 and the recess 30 b of the lever 30 . The spring force of the compression coil spring 35 biases the lever 30 about the shaft portion 30 a as the pivot center in a direction to urge the rotary guide body 6 against the sheet P (a direction to urge the other end of the lever 30 against the distal end of the adjusting bolt 32 ).
- the rotary guide body 6 is made of a plastic material with a low coefficient of friction, and the center of the outer surface of the rotary guide body 6 forms an arc. Hence, the outer surface of the rotary guide body 6 and the sheet are in point contact with each other to reduce the frictional force generated between the rotary guide body 6 and the sheet. Consequently, when the side lay devices 23 move the sheet in the direction perpendicular to the convey direction, the rotary guide body 6 will not damage the sheet by rubbing.
- the lever 30 , fixing block 25 , compression coil spring 35 , and adjusting bolt 32 constitute an individual rotary body adjusting device.
- FIG. 7A A structure which pivots the stay 7 will be described with reference to FIGS. 7A and 7B .
- bolts 36 a fix a fixing block 36 to one sheet feed frame 8 A.
- a bolt 38 fixes the support block 9 A to the fixing block 36 .
- A-bolt 40 fixes a bracket 39 , having an inverted-L shape when seen from the side, to the rear end face of the support block 9 A.
- a support body 41 is pivotally mounted on the bracket 39 through a shaft 41 a.
- a rotary member 42 which is regulated from moving in the axial direction and rotatably supported by the support body 41 , has a spring shoe 42 a at one end.
- a shaft 43 is axially mounted on the spring shoe 42 a , and a threaded portion 43 a is formed on the distal end of the shaft 43 .
- a rotation-preventive large-diameter portion 42 b with serrations on its outer surface is integrally formed on the other end of the rotary member 42 .
- a manipulating portion 42 c with a hexagonal socket integrally projects on the large-diameter portion 42 b .
- the distal end of a leaf spring 44 attached to the support body 41 engages with the outer surface of the large-diameter portion 42 b.
- the leaf spring 44 and the serrations constitute a rotation-preventive mechanism which prevents pivot motion caused by vibration or the like when the rotary member 42 is in operation.
- a bolt 46 fixes a swing element 45 to one end of the stay 7 by split clamp.
- the upper portion of the swing element 45 forms a Y shape that rotatably supports a small cylindrical pivot element 45 a.
- a threaded hole 45 b which is to threadably engage with the threaded portion 43 a of the rotary member 42 is formed in the pivot element 45 a to extend in the radial direction.
- a compression coil spring 47 is elastically mounted between the swing element 45 and the spring shoe 42 a of the rotary member 42 .
- the rotary member 42 , shaft 43 , swing element 45 , and compression coil spring 47 constitute an entire rotary guide body adjusting device. Furthermore, individual rotary guide body adjusting devices and/or entire rotary guide body adjusting device constitutes a rotary guide body adjusting device.
- a method of adjusting the plate-like guide bodies 5 A to 5 E and rotary guide bodies 6 , in the sheet guide apparatus having the above arrangement, in accordance with the thickness and type of the sheet will be described.
- First, a method that does not perform adjustment with the stay 7 will be described.
- the plate-like guide bodies 5 A to 5 E and rotary guide bodies 6 guide the sheet. More specifically, adjustment of setting the gap between the guide surfaces 5 d of the plate-like guide bodies 5 A to 5 E and the upper surface of the sheet P in accordance with the sheet thickness, and adjustment of adjusting the plurality of rotary guide bodies 6 separately by the individual rotary body adjusting devices to set the gap between the outer surfaces of the rotary guide bodies 6 and the feedboard 2 in accordance with the sheet thickness, are performed.
- the knobs 16 a of the fixing bolts 16 of the support devices 10 A and 10 B are rotated to loosen the fixing bolts 16 .
- the adjusting bolts 11 FIG. 3B
- the moving bodies 12 move in the vertical direction
- the support bodies 14 also move in the vertical direction to follow the moving bodies 12 .
- the plate-like guide bodies 5 A to 5 E also move in the vertical direction, and the gap between the guide surfaces 5 d and the upper surface of the sheet P is set in accordance with the sheet thickness.
- the knobs 16 a are pivoted to fasten the fixing bolts 16 , thus fixing the support bodies 14 to the fixing blocks 15 , so that the plate-like guide bodies 5 A to 5 E are adjusted at positions that match the sheet thickness.
- the parallel degree between the guide surfaces 5 d and the upper surface of the sheet P is maintained. Therefore, a sheet of any thickness can be reliably guided to the front lays 3 .
- the fastened lock nut 32 b ( FIG. 6B ) is loosened.
- the adjusting bolt 32 is moved forward/backward from the horizontal portion 27 of the fixing blocks 25 . This adjusts the position of the distal end of the adjusting bolt 32 .
- the lever 30 swings clockwise/counterclockwise to set the gap between the outer surface of the rotary guide body 6 and the upper surface of the sheet P in accordance with the sheet thickness.
- the lock nut 32 b is then fastened to adjust the gap between the outer surface of the rotary guide body 6 and the upper surface of the sheet P to the sheet thickness, and then the lock nut 32 b is fixed.
- the sheets are guided by only the rotary guide bodies 6 and not by the plate-like guide bodies 5 A to 5 E. More specifically, after loosening the knobs 16 a of the fixing bolts 16 of the support devices 10 A and 10 B by rotating, the adjusting bolts 11 are rotated to move the moving bodies 12 upward, as shown in FIG. 3B .
- the support bodies 14 also move upward to follow the moving bodies 12 , and the plate-like guide bodies 5 A to 5 E also move upward.
- the guide surfaces 5 d separate from the feedboard 2 so as not to come into contact with the sheet.
- the plate-like guide bodies 5 A to 5 E can be moved upward without interfering with the respective rotary guide bodies 6 .
- the sheet is guided by only the rotary guide bodies 6 and accordingly is not damaged.
- the rotary guide bodies 6 can press a preceding sheet by point contact.
- the next sheet can be reliably guided to the front lays 3 .
- the gap between all the outer surfaces of the respective rotary guide bodies 6 and the feedboard 2 is adjusted to be constant by the adjusting bolts 32 .
- the stay 7 is pivoted to adjust all the rotary guide bodies 6 simultaneously. More specifically, referring to FIG. 7A , the manipulating portion 42 c of the rotary member 42 is rotated using the spanner or the like to rotate the shaft 43 in one direction, so that the swing element 45 is pivoted clockwise in FIG. 7A about the distal end 7 a of the stay 7 as the pivot center.
- the rotary guide bodies 6 move through the support bodies 14 ( FIG. 6B ) integral with the stay 7 , to set the gap between the outer surfaces of the rotary guide bodies 6 and the feedboard 2 in accordance with the sheet thickness.
- the plate-like guide bodies 5 A to 5 E are also adjusted simultaneously through the support bodies 14 integral with the stay 7 .
- the sheet to be guided is an easily damaged sheet, if thick sheets are to be conveyed to overlap like scales, or if guide by the plate-like guide bodies 5 A to 5 E is not necessary, further adjustment is performed so the plate-like guide bodies 5 A to 5 E will not come into contact with the sheet. More specifically, after loosening the knobs 16 a of the fixing bolts 16 of the support devices 10 A and 10 B by rotation, the adjusting bolts 11 are rotated to move the moving bodies 12 upward, as shown in FIG. 3B .
- the support bodies 14 are also moved upward to follow the movement of the moving bodies 12 , so as to move the plate-like guide bodies 5 A to 5 E upward, thus largely separating the guide surfaces 5 d so as not to come into contact with the sheet. In this manner, all the rotary guide bodies 6 can be adjusted simultaneously by pivoting the stay 7 . As a result, the adjustment time can be shortened, and the work efficiency can be improved.
- the stay 7 is pivoted to adjust all the rotary guide bodies 6 at once simultaneously.
- the plate-like guide bodies 5 A to 5 E are adjusted to match the sheet thickness. More specifically, after loosening the knobs 16 a of the fixing bolts 16 of the support devices 10 A and 10 B by rotation, the adjusting bolts 11 are rotated to move the moving bodies 12 in the vertical direction, as shown in FIG. 3B . The support bodies 14 are also moved in the vertical direction to follow the movement of the moving bodies 12 , so the plate-like guide bodies 5 A to 5 E are also moved in the vertical direction. Thus, the gap between the guide surfaces 5 d and feedboard 2 is adjusted to match the sheet thickness.
- the stay 7 is pivoted in accordance with the method described above to adjust all the rotary guide bodies 6 at once simultaneously so as not come into contact with the sheet.
- the plate-like guide bodies 5 A to 5 E are adjusted to match the sheet thickness. More specifically, after loosening the knobs 16 a of the fixing bolts 16 of the support devices 10 A and 10 B by rotation, the adjusting bolts 11 are rotated to move the moving bodies 12 downward, as shown in FIG. 3B .
- the support bodies 14 are also moved downward to follow the moving bodies 12 , so as to move the plate-like guide bodies 5 A to 5 E downward.
- the gap between the guide surfaces 5 d and feedboard 2 is adjusted to match the sheet thickness.
- wrinkles formed in the sheet P by the guide surfaces 5 d of the plate-like guide bodies 5 A to 5 E can be corrected. Even if the sheets P are conveyed to overlap like scales, a preceding sheet can be pressed by the rotary guide bodies 6 by point contact, so that the next sheet can be reliably guided to the front lays 3 . Since the guide surfaces 5 d of the plate-like guide bodies 5 A to 5 E are separated from the upper surface of the sheet P and the sheet is guided by only the rotary guide bodies 6 , the sheet P will not be damaged.
- the sheet P can be guided by the rotary guide bodies 6 and/or plate-like guide bodies 5 A to 5 E in the vicinities of the front lays 3 , the sheet P can be reliably guided to the front lays 3 .
- the plate-like guide bodies 5 A to 5 E will not interfere with the rotary guide bodies 6 .
- the notches 5 c form space portions.
- holes may form space portions.
- the plate guide member is divided into five pieces, the plate guide member may comprise one piece or a plurality of pieces other than five pieces.
- the present invention has been described by applying a sheet guide apparatus to a printing press, the sheet guide apparatus can be applied to a coating machine, a testing machine which tests a sheet-type object, a laminate machine, an embossing machine, a punching machine, or the like.
- the sheet can be reliably guided to the front lays without being damaged.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Registering Or Overturning Sheets (AREA)
- Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
- Discharge By Other Means (AREA)
Abstract
In a sheet guide apparatus, a rotary guide body is supported to be rotatable and movable in directions to separate from and come close to the upper surface of a sheet. The outer surface of the rotary guide body comes into contact with the upper surface of the sheet to guide the sheet. A rotary guide body adjusting unit adjusts a position of the rotary guide body in directions to separate from and come close to the upper surface of the sheet. A plate-like guide body extends in the convey direction and lateral direction of the sheet, includes a guide surface which comes into contact with the upper surface of the sheet to guide the sheet, and is supported to be movable in the directions to separate from and come close to the upper surface of the sheet. A plate-like guide body adjusting unit adjusts a position of the plate-like guide body in the directions to separate from and come close to the upper surface of the sheet. The sheet contact portion on the outer surface of the rotary guide body is set below the guide surface of the plate-like guide body through at least one space portion which is formed in a downstream end of the plate-like guide body in the sheet convey direction to correspond to the rotary guide body.
Description
- The present invention relates to a sheet guide apparatus which guides a conveyed sheet to a front lay.
- Generally, in a sheet guide apparatus used in a feed device or the like for a sheet-fed rotary printing press, the sheet is not always flat. For example, sometimes the front edge of the sheet may deform by, e.g., waving, warping, or curling. If the sheet deforms in this manner, it does not abut against a front lay but may ride over it. In order to prevent this, a sheet guide apparatus of this type is provided with a sheet pressing device, downstream of a feedboard in a sheet convey direction, which straightens a deforming sheet fed onto the feedboard. Hence, the sheet can be abutted against the front lay reliably, positioned by the front lay, and corrected from traveling skew, so that the sheet can be transferred to a sheet transfer device reliably.
- As a sheet pressing device of this type, a sheet pressing plate made of an elastic material and a roller which comes into contact with the upper surface of a conveyed sheet are proposed, as described in Japanese Patent Laid-Open No. 2002-225228.
- Assume that the sheet pressing device is a sheet pressing plate. The sheet pressing device guides a sheet within a wide range in a convey direction and a direction perpendicular to the convey direction. Hence, if the sheet is thin, deformation occurring in the thin sheet can be corrected. If the sheet is thick, when thick sheets are conveyed to overlap like scales, a preceding sheet may raise the sheet pressing plate, so that the next sheet that follows cannot be appropriately guided to the front lay. As the sheet and sheet pressing plate rub against each other, the sheet surface can be damaged easily. Particularly, when the sheet is a film or the like that can readily be damaged, this sheet pressing plate cannot be employed.
- Assume that the guide member is a roller. In this case, even when thick sheets are conveyed to overlap like scales, as the roller presses a preceding sheet through point contact, the next sheet that follows can be reliably guided to the front lay. However, an impact generated upon abutment of the thin sheet against the front lay can form wrinkles in the sheet, and deformation occurring in the sheet cannot be corrected.
- It is an object of the present invention to provide a sheet guide apparatus which guides various types of sheets to be able to reliably abut against a front lay.
- In order to achieve the above object, according to the present invention, there is provided a sheet guide apparatus comprising a front lay which abuts against a downstream end of a sheet in a convey direction and regulates movement of the sheet in the convey direction, one or more rotary guide bodies each of which is supported to be rotatable and movable in directions to separate from and come close to an upper surface of a sheet and an outer surface of which comes into contact with the upper surface of the sheet to guide the sheet, a rotary guide body adjusting unit which adjusts a position of the rotary guide body in directions to separate from and come close to the upper surface of the sheet, a plate-like guide body extending in the convey direction and a lateral direction of the sheet, including a guide surface which comes into contact with the upper surface of the sheet to guide the sheet, and supported to be movable in the directions to separate from and come close to the upper surface of the sheet, and a plate-like guide body adjusting unit which adjusts a position of the plate-like guide body in the directions to separate from and come close to the upper surface of the sheet, wherein a sheet contact portion on the outer surface of the rotary guide body is set below the guide surface of the plate-like guide body through one more space portions each of which is formed in a downstream end of the plate-like guide body in the sheet convey direction to correspond to the rotary guide body.
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FIGS. 1A and 1B are plan views of a sheet guide apparatus according to one embodiment of the present invention; -
FIG. 2 is a plan view of the main part of a plate-like guide body shown inFIG. 1A ; -
FIG. 3A is a view seen from the arrow III(A) inFIG. 3B ; -
FIG. 3B is a sectional view taken along the line III(B)-III(B) inFIG. 1B ; -
FIG. 4 is a sectional view taken along the line IV-IV inFIG. 3B ; -
FIG. 5 is a sectional view taken along the line V-V inFIG. 1A ; -
FIG. 6A is a view seen from the arrow VI(B) inFIG. 6B ; -
FIG. 6B is a sectional view taken along the line VI(B) inFIG. 1B ; -
FIG. 7A is a sectional view taken along the line VII(A) inFIG. 1A ; and -
FIG. 7B is a view seen from the VII(B) inFIG. 7A . - A sheet guide apparatus according to one embodiment of the present invention will be described with reference to
FIGS. 1A to 7B . - As shown in
FIGS. 1A and 1B , a sheet guide apparatus 1 according to this embodiment comprises a feedboard 2 (sheet guide member) serving as a sheet guide member to which a sheet is conveyed from a feeder board (not shown),front lays 3 which are provided at the downstream (direction of an arrow A) end of thefeedboard 2 in the sheet convey direction and abut against the downstream edge of the sheet in the convey direction to regulate the movement of the sheet in the convey direction, and aguide device 4 which guides the sheet to thefront lays 3. Eachfront lay 3 comprises a pair oflays 3 a against which the leading edge (downstream edge in the sheet convey direction) of the sheet abuts, alay hook 3 b which is arranged above the sheet and guides the sheet to thelays 3 a, and alever device 3 c (FIG. 3B ) which supports thelays 3 a and layhook 3 b. Of thefront lays 3, in onefront lay 3 arranged at the center in the sheet widthwise direction (a direction perpendicular to the sheet convey direction), the pair oflays 3 a are disposed adjacent to each other. In each of thefront lays 3 arranged at the two sides, thelay hook 3 b is disposed between the pair oflays 3 a. - The
guide device 4 comprises five plate-like guide bodies 5A to 5E spreading along the upper surface of the sheet and extending in a direction perpendicular to the sheet convey direction, and a plurality ofrotary guide bodies 6 which are supported to be rotatable and movable in directions to separate from and come close to the upper surface of the sheet and the outer surfaces of which are in contact with the upper surface of the sheet. The plate-like guide bodies 5A to 5E are supported to be movable in directions to separate from and come close to the upper surface of the sheet. Eachrotary guide body 6 comprises a wheel made of a plastic material. The center of the outer surface of therotary guide body 6 swells, as shown inFIG. 6A . - A
prismatic stay 7 extends between a pair ofsheet feed frames Support blocks sheet feed frames ends stay 7. - A support structure for the plate-like guide body will be described. As shown in
FIGS. 1A and 1B , thestay 7 is provided withsupport devices support devices like guide bodies 5A to 5E to be movable and adjustable in the vertical direction (directions to separate from and come close to the upper surface of the sheet). Thesupport devices support device 10B will be described hereinafter, and thesupport device 10A will be described where necessary. - As shown in
FIG. 3B , thesupport device 10B comprises a first adjusting bolt 11 (support body adjusting member) which moves the plate-like guide bodies 5A to 5E vertically, a movingbody 12 which moves vertically upon rotation of the adjustingbolt 11, asupport body 14 which supports the plate-like guide bodies 5A to 5E through asupport plate 13 and moves integrally with the movingbody 12, and a fixing bolt 16 (support body fixing member) which fixes thesupport body 14 to thestay 7 through afirst fixing block 15. - As shown in
FIG. 4 , in the adjustingbolt 11, a large-diameter portion 11 b, threadedportion 11 d, and small-diameter portion 11 c are sequentially formed integrally with aknob 11 a (manipulating portion) at the upper end. The threadedportion 11 d threadably engages with a threadedhole 7 a of thestay 7. The movingbody 12 with a U-shaped section has a pair of opposingportions 12 b which haveinsertion holes 12 a where the adjustingbolt 11 is to be inserted and which oppose each other. The movingbody 12 is supported by thestay 7 through the adjustingbolt 11 such that thestay 7 is located between the pair of opposingportions 12 b. - A
stopper 17 fixed to the small-diameter portion 11 c of the adjustingbolt 11 and the large-diameter portion 11 b loosely sandwich the pair of opposingportions 12 b of the movingbody 12. When rotating the adjustingbolt 11 clockwise/counterclockwise, the movingbody 12 moves together with the adjustingbolt 11 vertically with respect to thestay 7. - As shown in
FIG. 3B ,bolts support body 14 to the pair of opposingportions 12 b of the movingbody 12. Thesupport body 14 has a vertically long elongatedhole 14 a in which the fixingbolt 16 is to be inserted. The structure comprising the movingbody 12 andsupport body 14 is attached to sandwich thestay 7. When manipulating the adjustingbolt 11, this structure moves vertically as it is guided by the side surface of thestay 7. - As shown in
FIGS. 3A and 3B ,bolts 19 attach the fixingblock 15 to thestay 7. The fixingblock 15 has a threadedhole 15 a which threadably engages with the fixingbolt 16. Thesupport body 14 is located between aknob 16 a of the fixingbolt 16 and the fixingblock 15. In this arrangement, first, theknob 16 a of the fixingbolt 16 is pivoted to loosen the fixingbolt 16, thus disengaging thesupport body 14. After that, the adjustingbolt 11 is rotated clockwise/counterclockwise to move the movingbody 12 in the vertical direction. At this time, thesupport body 14 moves in the vertical direction to follow the movingbody 12. After moving thesupport body 14 in the vertical direction, the fixingbolt 16 is fastened, so that a large-diameter portion 16 b of the fixingbolt 16 and the fixingblock 15 fix thesupport body 14. Theelongated hole 14 a of thesupport body 14 is formed so that thesupport body 14 can be fixed by the fixingbolt 16 even when the adjustingbolt 11 adjusts the position of thesupport body 14. - As shown in
FIGS. 1A and 1B , theelongated support plate 13 extends between thesupport devices FIG. 5 ,bolts 20 attach the two ends of thesupport plate 13 to thesupport bodies 14 of thesupport devices FIG. 5 , each of the plate-like guide bodies 5A to 5E has aproximal end 5 a extending perpendicularly to the upper surface of the sheet, and aguide portion 5 b extending in the horizontal direction, thus forming an L shape with a curved section. Theguide portion 5 b comes into contact with a sheet P to guide it to the front lays 3. -
Bolts 21 attach the proximal ends 5 a of the respective plate-like guide bodies 5A to 5E to thesupport plate 13 such that theguide portions 5 b are in contact with the upper surface of the sheet P. As shown inFIG. 2 , that end of eachguide portion 5 b which is downstream in the sheet convey direction (the direction of the arrow A) hasnotches 5 c which form space portions opposing the plurality ofrotary guide bodies 6, and guidesurfaces 5 d corresponding to the portions among thenotches 5 c. - According to this embodiment, by manipulating the adjusting
bolt 11, the position of thesupport body 14 is adjusted, and the gap amount is adjusted between the plate-like guide bodies 5A to 5E and thefeedboard 2. More specifically, thesupport body 14 is movable in the vertical direction, and the guide surfaces 5 d of the plate-like guide bodies 5A to 5E are movable in the direction perpendicular to the upper surface of the sheet P. Hence, even when moving the plate-like guide bodies 5A to 5E, the parallel degree between the guide surfaces 5 d and the upper surface of the sheet P is maintained. As a result, the entire surfaces of the guide surfaces 5 d come into contact with a sheet of any thickness evenly, so that the guide surfaces 5 d can guide the sheet P reliably. Wrinkles are prevented from being formed in the sheet P by an impact applied when the sheet P abuts against the front lays 3. Also, deformation of the sheet P such as wrinkles or waves existing in the sheet P before the sheet P abuts against the front lays 3 can be corrected reliably. - The adjusting
bolt 11, movingbody 12, andsupport body 14 constitute a plate-like guide adjusting device. The fixingblock 15 and fixingbolt 16 constitute a plate-like guide fixing device. - Side lay
devices 23 are known side lay devices serving as widthwise direction alignment devices, and align the sheet in a direction perpendicular to the sheet convey direction when the downstream end of the sheet in the sheet convey direction abuts against the front lays 3. - A support structure for each
rotary guide body 6 will be described with reference toFIGS. 6A and 6B . As shown inFIG. 6B , abolt 26 fixes asecond fixing block 25 to thestay 7. The fixingblock 25 has ahorizontal portion 27 with a threadedhole 27 a and avertical portion 28 with a threadedhole 28 a, thus forming an L shape. A pair of opposingaxial supports 28 b extend downward from the lower end of thevertical portion 28. - The pair of
axial supports 28 b of thevertical portion 28 swingably support ashaft portion 30 a projecting at the center of a lever 30 (support member). Therotary guide body 6 is rotatably supported at one end of thelever 30 through ashaft 31. Aspring shoe recess 30 b is formed between the end and center of thelever 30. A second adjusting bolt 32 (support member adjusting member) threadably engages with the threadedhole 27 a of the fixingblock 25. The distal end of the adjustingbolt 32 abuts against the other end of thelever 30 to regulate the pivot motion of thelever 30. Aknob 32 a is integrally fixed to the upper end of the adjustingbolt 32. Alock nut 32 b threadably engages with the adjustingbolt 32. When pivoting thelock nut 32 b to come into tight contact with the surface of thehorizontal portion 27 of the fixingblock 25, the loosening of the adjustingbolt 32 is regulated, thus locking the adjustingbolt 32. - A spring pressure adjusting bolt 33 (biasing force adjusting member) threadably engaging with the threaded
hole 28 a of the fixingblock 25 thredably engages with anut 34. A compression coil spring 35 (biasing member) is elastically mounted between the distal end of thebolt 33 and therecess 30 b of thelever 30. The spring force of thecompression coil spring 35 biases thelever 30 about theshaft portion 30 a as the pivot center in a direction to urge therotary guide body 6 against the sheet P (a direction to urge the other end of thelever 30 against the distal end of the adjusting bolt 32). - In this arrangement, when loosening the
lock nut 32 b and pivoting the adjustingbolt 32 such that the distal end moves downward, thelever 30 pivots clockwise inFIG. 6B against the spring force of thecompression coil spring 35. This separates therotary guide body 6 from the upper surface of the sheet P. When pivoting the adjustingbolt 32 such that its distal end moves upward, the spring force of thecompression coil spring 35 pivots thelever 30 counterclockwise inFIG. 6B . Thus, therotary guide body 6 comes close to the upper surface of the sheet P. In this manner, by manipulating the adjustingbolt 32, the position of thelever 30 is adjusted, and the gap amount between therotary guide body 6 andfeedboard 2 is adjusted. - The
rotary guide body 6 is made of a plastic material with a low coefficient of friction, and the center of the outer surface of therotary guide body 6 forms an arc. Hence, the outer surface of therotary guide body 6 and the sheet are in point contact with each other to reduce the frictional force generated between therotary guide body 6 and the sheet. Consequently, when the side laydevices 23 move the sheet in the direction perpendicular to the convey direction, therotary guide body 6 will not damage the sheet by rubbing. Thelever 30, fixingblock 25,compression coil spring 35, and adjustingbolt 32 constitute an individual rotary body adjusting device. - A structure which pivots the
stay 7 will be described with reference toFIGS. 7A and 7B . As shown inFIG. 7A ,bolts 36 a fix a fixingblock 36 to onesheet feed frame 8A. Abolt 38 fixes thesupport block 9A to the fixingblock 36. A-bolt 40 fixes abracket 39, having an inverted-L shape when seen from the side, to the rear end face of thesupport block 9A. Asupport body 41 is pivotally mounted on thebracket 39 through ashaft 41 a. - A rotary member 42, which is regulated from moving in the axial direction and rotatably supported by the
support body 41, has a spring shoe 42 a at one end. Ashaft 43 is axially mounted on the spring shoe 42 a, and a threadedportion 43 a is formed on the distal end of theshaft 43. A rotation-preventive large-diameter portion 42 b with serrations on its outer surface is integrally formed on the other end of the rotary member 42. A manipulatingportion 42 c with a hexagonal socket integrally projects on the large-diameter portion 42 b. The distal end of aleaf spring 44 attached to thesupport body 41 engages with the outer surface of the large-diameter portion 42 b. Theleaf spring 44 and the serrations constitute a rotation-preventive mechanism which prevents pivot motion caused by vibration or the like when the rotary member 42 is in operation. - As shown in
FIG. 1A , abolt 46 fixes aswing element 45 to one end of thestay 7 by split clamp. The upper portion of theswing element 45 forms a Y shape that rotatably supports a smallcylindrical pivot element 45 a. A threadedhole 45 b which is to threadably engage with the threadedportion 43 a of the rotary member 42 is formed in thepivot element 45 a to extend in the radial direction. Acompression coil spring 47 is elastically mounted between theswing element 45 and the spring shoe 42 a of the rotary member 42. - In this arrangement, when rotating the manipulating
portion 42 c of the rotary member 42 with a spanner or the like to rotate theshaft 43 in one direction, theswing element 45 pivots counterclockwise inFIG. 7A about theend 7 a of thestay 7 as the pivot center. When thestay 7 pivots, the plate-like guide bodies 5A to 5E pivot counterclockwise through the support body 14 (FIG. 4 ) integral with thestay 7. As a result, all therotary guide bodies 6 supported by thestay 7 pivot clockwise (FIG. 6B ) about the axial supports 28 b as the center to separate from the upper surface of the sheet P simultaneously, thereby adjusting the gap amount between all therotary guide bodies 6 and thefeedboard 2 at once simultaneously. - When rotating the manipulating
portion 42 c of the rotary member 42 with the spanner or the like to rotate theshaft 43 in the other direction, theswing element 45 pivots clockwise inFIG. 7A about theend 7 a of thestay 7 as the pivot center. When thestay 7 pivots, the plate-like guide bodies 5A to 5E pivot clockwise through the support body 14 (FIG. 5 ) integral with thestay 7. As a result, all therotary guide bodies 6 supported by thestay 7 pivot counterclockwise (FIG. 6B ) about the axial supports 28 b as the center to come close to the upper surface of the sheet P simultaneously, thereby adjusting the gap amount between all therotary guide bodies 6 and thefeedboard 2 at once simultaneously. The rotary member 42,shaft 43,swing element 45, andcompression coil spring 47 constitute an entire rotary guide body adjusting device. Furthermore, individual rotary guide body adjusting devices and/or entire rotary guide body adjusting device constitutes a rotary guide body adjusting device. - A method of adjusting the plate-
like guide bodies 5A to 5E androtary guide bodies 6, in the sheet guide apparatus having the above arrangement, in accordance with the thickness and type of the sheet will be described. First, a method that does not perform adjustment with thestay 7 will be described. - When guiding a thin sheet, the plate-
like guide bodies 5A to 5E androtary guide bodies 6 guide the sheet. More specifically, adjustment of setting the gap between the guide surfaces 5 d of the plate-like guide bodies 5A to 5E and the upper surface of the sheet P in accordance with the sheet thickness, and adjustment of adjusting the plurality ofrotary guide bodies 6 separately by the individual rotary body adjusting devices to set the gap between the outer surfaces of therotary guide bodies 6 and thefeedboard 2 in accordance with the sheet thickness, are performed. - This will be described in detail. The
knobs 16 a of the fixingbolts 16 of thesupport devices bolts 16. After that, the adjusting bolts 11 (FIG. 3B ) are rotated clockwise/counterclockwise. Hence, the movingbodies 12 move in the vertical direction, and thesupport bodies 14 also move in the vertical direction to follow the movingbodies 12. The plate-like guide bodies 5A to 5E also move in the vertical direction, and the gap between the guide surfaces 5 d and the upper surface of the sheet P is set in accordance with the sheet thickness. After that, theknobs 16 a are pivoted to fasten the fixingbolts 16, thus fixing thesupport bodies 14 to the fixing blocks 15, so that the plate-like guide bodies 5A to 5E are adjusted at positions that match the sheet thickness. At this time, as the guide surfaces 5 d of the plate-like guide bodies 5A to 5E move perpendicularly to the upper surface of the sheet P, the parallel degree between the guide surfaces 5 d and the upper surface of the sheet P is maintained. Therefore, a sheet of any thickness can be reliably guided to the front lays 3. - Subsequently, the fastened
lock nut 32 b (FIG. 6B ) is loosened. After rotating theknob 32 a of the adjustingbolt 32 clockwise/counterclockwise, the adjustingbolt 32 is moved forward/backward from thehorizontal portion 27 of the fixing blocks 25. This adjusts the position of the distal end of the adjustingbolt 32. Accordingly, thelever 30 swings clockwise/counterclockwise to set the gap between the outer surface of therotary guide body 6 and the upper surface of the sheet P in accordance with the sheet thickness. Thelock nut 32 b is then fastened to adjust the gap between the outer surface of therotary guide body 6 and the upper surface of the sheet P to the sheet thickness, and then thelock nut 32 b is fixed. This adjustment is performed for eachrotary guide body 6 using each adjustingbolt 32. Hence, the plate-like guide bodies rotary guide bodies 6 guide the sheet P in the vicinities of the front lays 3. Thus, no wrinkles are formed in the sheet P by an impact occurring when the sheet P abuts against the front lays 3, and the sheet P is reliably guided to the front lays 3. When adjusting therotary guide bodies 6 and/or plate-like guide bodies 5A to 5E, the plate-like guide bodies rotary guide bodies 6 because of the presence of thenotches 5 c of the plate-like guide bodies 5A to 5E. - When guiding a sheet such as a film the surface of which can be damaged easily, or when stiff sheets such as thick sheets are to be conveyed to overlap like scales, the sheets are guided by only the
rotary guide bodies 6 and not by the plate-like guide bodies 5A to 5E. More specifically, after loosening theknobs 16 a of the fixingbolts 16 of thesupport devices bolts 11 are rotated to move the movingbodies 12 upward, as shown inFIG. 3B . Thesupport bodies 14 also move upward to follow the movingbodies 12, and the plate-like guide bodies 5A to 5E also move upward. Hence, the guide surfaces 5 d separate from thefeedboard 2 so as not to come into contact with the sheet. - Because of the presence of the
notches 5 c of the plate-like guide bodies 5A to 5E, the plate-like guide bodies 5A to 5E can be moved upward without interfering with the respectiverotary guide bodies 6. By this adjustment, the sheet is guided by only therotary guide bodies 6 and accordingly is not damaged. Even when sheets are conveyed to overlap like scales, therotary guide bodies 6 can press a preceding sheet by point contact. Thus, the next sheet can be reliably guided to the front lays 3. - First, the gap between all the outer surfaces of the respective
rotary guide bodies 6 and thefeedboard 2 is adjusted to be constant by the adjustingbolts 32. - When changing thin sheets (thin paper) to thick sheets (thick paper), the
stay 7 is pivoted to adjust all therotary guide bodies 6 simultaneously. More specifically, referring toFIG. 7A , the manipulatingportion 42 c of the rotary member 42 is rotated using the spanner or the like to rotate theshaft 43 in one direction, so that theswing element 45 is pivoted clockwise inFIG. 7A about thedistal end 7 a of thestay 7 as the pivot center. Upon pivot motion of thestay 7, therotary guide bodies 6 move through the support bodies 14 (FIG. 6B ) integral with thestay 7, to set the gap between the outer surfaces of therotary guide bodies 6 and thefeedboard 2 in accordance with the sheet thickness. When adjusting therotary guide bodies 6, the plate-like guide bodies 5A to 5E are also adjusted simultaneously through thesupport bodies 14 integral with thestay 7. - At this time, if the sheet to be guided is an easily damaged sheet, if thick sheets are to be conveyed to overlap like scales, or if guide by the plate-
like guide bodies 5A to 5E is not necessary, further adjustment is performed so the plate-like guide bodies 5A to 5E will not come into contact with the sheet. More specifically, after loosening theknobs 16 a of the fixingbolts 16 of thesupport devices bolts 11 are rotated to move the movingbodies 12 upward, as shown inFIG. 3B . Thesupport bodies 14 are also moved upward to follow the movement of the movingbodies 12, so as to move the plate-like guide bodies 5A to 5E upward, thus largely separating the guide surfaces 5 d so as not to come into contact with the sheet. In this manner, all therotary guide bodies 6 can be adjusted simultaneously by pivoting thestay 7. As a result, the adjustment time can be shortened, and the work efficiency can be improved. - When the sheet is thin, the
stay 7 is pivoted to adjust all therotary guide bodies 6 at once simultaneously. - At this time, if the gap between the plate-
like guide bodies 5A to 5E and thefeedboard 2 is not set in accordance with the sheet thickness, the plate-like guide bodies 5A to 5E are adjusted to match the sheet thickness. More specifically, after loosening theknobs 16 a of the fixingbolts 16 of thesupport devices bolts 11 are rotated to move the movingbodies 12 in the vertical direction, as shown inFIG. 3B . Thesupport bodies 14 are also moved in the vertical direction to follow the movement of the movingbodies 12, so the plate-like guide bodies 5A to 5E are also moved in the vertical direction. Thus, the gap between the guide surfaces 5 d andfeedboard 2 is adjusted to match the sheet thickness. - When guiding the thin sheet with only the plate-
like guide bodies 5A to 5E, first, thestay 7 is pivoted in accordance with the method described above to adjust all therotary guide bodies 6 at once simultaneously so as not come into contact with the sheet. Subsequently, the plate-like guide bodies 5A to 5E are adjusted to match the sheet thickness. More specifically, after loosening theknobs 16 a of the fixingbolts 16 of thesupport devices bolts 11 are rotated to move the movingbodies 12 downward, as shown inFIG. 3B . Thesupport bodies 14 are also moved downward to follow the movingbodies 12, so as to move the plate-like guide bodies 5A to 5E downward. Thus, the gap between the guide surfaces 5 d andfeedboard 2 is adjusted to match the sheet thickness. - According to this embodiment, wrinkles formed in the sheet P by the guide surfaces 5 d of the plate-
like guide bodies 5A to 5E can be corrected. Even if the sheets P are conveyed to overlap like scales, a preceding sheet can be pressed by therotary guide bodies 6 by point contact, so that the next sheet can be reliably guided to the front lays 3. Since the guide surfaces 5 d of the plate-like guide bodies 5A to 5E are separated from the upper surface of the sheet P and the sheet is guided by only therotary guide bodies 6, the sheet P will not be damaged. - In this manner, since the sheet P can be guided by the
rotary guide bodies 6 and/or plate-like guide bodies 5A to 5E in the vicinities of the front lays 3, the sheet P can be reliably guided to the front lays 3. When adjusting therotary guide bodies 6 and/or plate-like guide bodies 5A to 5E, because of the presence of thenotches 5 c of the plate-like guide bodies 5A to 5E, the plate-like guide bodies 5A to 5E will not interfere with therotary guide bodies 6. - According to this embodiment, the
notches 5 c form space portions. Alternatively, holes may form space portions. Although the plate guide member is divided into five pieces, the plate guide member may comprise one piece or a plurality of pieces other than five pieces. Although the present invention has been described by applying a sheet guide apparatus to a printing press, the sheet guide apparatus can be applied to a coating machine, a testing machine which tests a sheet-type object, a laminate machine, an embossing machine, a punching machine, or the like. - As has been described above, according to the present invention, if an appropriate guide body is selected in accordance with the type of the sheet-type object, the sheet can be reliably guided to the front lays without being damaged.
Claims (9)
1.-8. (canceled)
9. A sheet guide apparatus comprising:
a front lay which abuts against a downstream end of a sheet in a convey direction and regulates movement of the sheet in the convey direction;
one or more rotary guide bodies, each of which is supported to be rotatable and movable in directions to separate from and come close to an upper surface of a sheet and an outer surface of which comes into contact with the upper surface of the sheet to guide the sheet;
a rotary guide body adjusting unit which adjusts a position of said rotary guide body in directions to separate from and come close to the upper surface of the sheet;
a plate-like guide body extending in the convey direction and a lateral direction of the sheet, including a guide surface which comes into contact with the upper surface of the sheet to guide the sheet, and supported to be movable in the directions to separate from and come close to the upper surface of the sheet; and
a plate-like guide body adjusting unit which adjusts a position of said plate-like guide body in the directions to separate from and come close to the upper surface of the sheet,
wherein a sheet contact portion on the outer surface of said rotary guide body is set below said guide surface of said plate-like guide body through one or more space portions, each of which is formed in a downstream end of said plate-like guide body in the sheet convey direction to correspond to said rotary guide body.
10. An apparatus according to claim 9 , wherein
said rotary guide bodies line up in a direction perpendicular to the sheet convey direction, and
said space portions are formed to correspond to said plurality of rotary guide bodies.
11. An apparatus according to claim 10 , wherein
said rotary guide body adjusting unit comprises
a first rotary guide body adjusting unit which adjusts all positions of said plurality of rotary guide bodies simultaneously, and
a plurality of second rotary guide body adjusting units which are provided to correspond to said plurality of rotary guide bodies and adjust positions of said plurality of rotary guide bodies individually.
12. An apparatus according to claim 11 , further comprising a stay which is rotatably supported between a pair of frames and on which said plurality of rotary guide bodies and said plurality of second rotary guide adjusting units are supported,
wherein said plurality of rotary guide bodies move simultaneously when said first rotary guide body adjusting unit rotates said stay.
13. An apparatus according to claim 12 , wherein said plate-like guide body and said plate-like guide body adjusting unit are supported by said stay.
14. An apparatus according to claim 12 , wherein said second rotary guide body adjusting units comprise
a support member which is swingably supported and rotatably supports said rotary guide body,
a first adjusting member which regulates a swing position of said support member and performs position adjustment to adjust a position of said support member, and
a biasing member which biases said first support member to abut against said adjusting member.
15. An apparatus according to claim 13 wherein said plate-like guide body adjusting unit comprises
a support body which is attached to said stay to be movable in directions to separate from and come close to the upper surface of the sheet and supports said plate-like guide bodies, and
a second adjusting member which moves said support body in the directions to separate from and come close to the upper surface of the sheet.
16. An apparatus according to claim 9 , wherein said space portion comprises a notch of said plate-like guide body which opens downstream in the sheet convey direction.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007237824 | 2007-09-13 | ||
JP237824/2007 | 2007-09-13 |
Publications (1)
Publication Number | Publication Date |
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US20090072473A1 true US20090072473A1 (en) | 2009-03-19 |
Family
ID=40129109
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/283,193 Abandoned US20090072473A1 (en) | 2007-09-13 | 2008-09-10 | Sheet guide apparatus |
Country Status (4)
Country | Link |
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US (1) | US20090072473A1 (en) |
EP (1) | EP2036844A3 (en) |
JP (1) | JP2009083476A (en) |
CN (1) | CN101386380A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20170151449A1 (en) * | 2015-11-27 | 2017-06-01 | Hironic Co., Ltd. | Apparatus for focused ultrasound operation with controllable rotation angle of cartridge, focused ultrasound operation system, and method using the same |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6565885B1 (en) | 1997-09-29 | 2003-05-20 | Inhale Therapeutic Systems, Inc. | Methods of spray drying pharmaceutical compositions |
CN104692157B (en) * | 2015-02-11 | 2017-02-22 | 郭石生 | Mobile printing, positioning and conveying device |
CN106927244B (en) * | 2017-04-17 | 2022-08-09 | 河北建筑工程学院 | High-speed transfer robot system of photovoltaic panel |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6805260B2 (en) * | 2001-10-15 | 2004-10-19 | Heidelberger Druckmaschinen Ag | Device and method for feeding sheets to a sheet-processing machine, especially a printing press |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1089774B (en) * | 1959-05-22 | 1960-09-29 | Georg Spiess Dr Ing | Sheet feeder with front lays that can be moved up and down on the front edge of the feed table and with sheet alignment means |
DE3731216A1 (en) * | 1987-09-17 | 1989-04-13 | Koenig & Bauer Ag | DEVICE FOR FEEDING SHEETS TO A SHEET PROCESSING MACHINE, IN PARTICULAR PRINTING MACHINE |
US4896875A (en) * | 1988-12-21 | 1990-01-30 | Am International, Inc. | Copy sheet pull guide mechanism |
DE4435264C2 (en) * | 1994-10-01 | 2001-05-10 | Heidelberger Druckmasch Ag | Bow hold down |
DE19962116A1 (en) * | 1999-12-21 | 2001-06-28 | Heidelberger Druckmasch Ag | Guide device for guiding sheets and method for operating a guide device |
JP2002225228A (en) | 2001-01-31 | 2002-08-14 | Mitsubishi Heavy Ind Ltd | Paper presser of swing type |
DE102004048148A1 (en) * | 2004-10-02 | 2006-04-06 | Koenig & Bauer Ag | Sheet guide system fitted on feed tray of printing machine has lower section mounted on wheels and upper section which pivots on transverse shaft and has parallel eccentric adjusting shaft |
-
2008
- 2008-09-05 JP JP2008228010A patent/JP2009083476A/en active Pending
- 2008-09-09 EP EP08015883A patent/EP2036844A3/en not_active Withdrawn
- 2008-09-10 US US12/283,193 patent/US20090072473A1/en not_active Abandoned
- 2008-09-16 CN CNA2008101608235A patent/CN101386380A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6805260B2 (en) * | 2001-10-15 | 2004-10-19 | Heidelberger Druckmaschinen Ag | Device and method for feeding sheets to a sheet-processing machine, especially a printing press |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20170151449A1 (en) * | 2015-11-27 | 2017-06-01 | Hironic Co., Ltd. | Apparatus for focused ultrasound operation with controllable rotation angle of cartridge, focused ultrasound operation system, and method using the same |
Also Published As
Publication number | Publication date |
---|---|
EP2036844A2 (en) | 2009-03-18 |
CN101386380A (en) | 2009-03-18 |
JP2009083476A (en) | 2009-04-23 |
EP2036844A3 (en) | 2011-08-31 |
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