EP3012215A1 - Paper feeding device and paper feeding method - Google Patents
Paper feeding device and paper feeding method Download PDFInfo
- Publication number
- EP3012215A1 EP3012215A1 EP14851356.7A EP14851356A EP3012215A1 EP 3012215 A1 EP3012215 A1 EP 3012215A1 EP 14851356 A EP14851356 A EP 14851356A EP 3012215 A1 EP3012215 A1 EP 3012215A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sheet
- feeding
- speed
- paper feeding
- sheets
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 23
- 230000003247 decreasing effect Effects 0.000 claims abstract description 4
- 230000032258 transport Effects 0.000 claims description 10
- 230000007423 decrease Effects 0.000 claims description 6
- 239000000123 paper Substances 0.000 description 145
- 238000001179 sorption measurement Methods 0.000 description 6
- 230000002250 progressing effect Effects 0.000 description 4
- 239000011111 cardboard Substances 0.000 description 3
- 239000011087 paperboard Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000036962 time dependent Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
-
- 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
- B65H5/24—Feeding articles in overlapping streams, i.e. by separation of articles from a pile
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H3/00—Separating articles from piles
- B65H3/02—Separating articles from piles using friction forces between articles and separator
- B65H3/06—Rollers or like rotary separators
- B65H3/0676—Rollers or like rotary separators with two or more separator rollers in the feeding direction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H1/00—Supports or magazines for piles from which articles are to be separated
- B65H1/30—Supports or magazines for piles from which articles are to be separated with means for replenishing the pile during continuous separation of articles therefrom
-
- 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
- B65H11/002—Feed tables incorporating transport belts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H3/00—Separating articles from piles
- B65H3/08—Separating articles from piles using pneumatic force
- B65H3/0808—Suction grippers
- B65H3/0816—Suction grippers separating from the top of pile
- B65H3/0825—Suction grippers separating from the top of pile and acting on the rear part of the articles relatively to the final separating direction
-
- 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
- B65H5/02—Feeding articles separated from piles; Feeding articles to machines by belts or chains, e.g. between belts or chains
- B65H5/021—Feeding articles separated from piles; Feeding articles to machines by belts or chains, e.g. between belts or chains by belts
-
- 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
- B65H5/06—Feeding articles separated from piles; Feeding articles to machines by rollers or balls, e.g. between rollers
- B65H5/062—Feeding articles separated from piles; Feeding articles to machines by rollers or balls, e.g. between rollers between rollers or balls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H7/00—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles
- B65H7/02—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
- B65H2511/30—Numbers, e.g. of windings or rotations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2513/00—Dynamic entities; Timing aspects
- B65H2513/10—Speed
- B65H2513/11—Speed angular
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2513/00—Dynamic entities; Timing aspects
- B65H2513/20—Acceleration or deceleration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/10—Handled articles or webs
- B65H2701/17—Nature of material
- B65H2701/176—Cardboard
- B65H2701/1764—Cut-out, single-layer, e.g. flat blanks for boxes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2801/00—Application field
- B65H2801/03—Image reproduction devices
- B65H2801/21—Industrial-size printers, e.g. rotary printing press
Definitions
- the present invention relates to a paper feeding device and a paper feeding method, and more particularly relates to a device and method for supplying a sheet of cardboard or paperboard to a paper feeding unit of printers or die cutting devices.
- Some printers or die cutting devices have a hopper for temporarily holding a sheet in a paper feeding unit of the sheet for printing or die cutting.
- a hopper for temporarily holding a sheet in a paper feeding unit of the sheet for printing or die cutting.
- Figs. 5A to 5D illustrate an example of a paper feeding device in the related art in which the sheet is fed to the hopper of the paper feeding unit of these printers or die cutting devices.
- a paper feeding device 101 is disposed adjacent to the paper feeding unit 200 of the printer.
- illustration of a printer main body is omitted.
- the paper feeding device 101 includes a paper feeding tray 110 on which multiple sheets 60 are stacked in a vertical direction, a pusher 120 which is disposed above the paper feeding tray 110 and which serves as sheet feeding means for feeding the multiple sheets stacked on the paper feeding tray 110 in a horizontal direction at a time, and a transporting conveyor 140 which is disposed adjacent to the paper feeding tray 110 and which transports the multiple sheets fed by the pusher 120.
- the paper feeding device 101 causes the pusher 120 to push out the multiple sheets 60 stacked on the paper feeding tray 110 onto the transporting conveyor 140 as a batch of multi-stacked sheets 60B.
- Batch dismantling rollers 151 and 152 of a batch dismantling device 150 are disposed above the transporting conveyor 140 by leaving a distance from an upper surface of a belt 141 of the transporting conveyor 140.
- the batch dismantling rollers (hereinafter, simply referred to as rollers) 151 and 152 are illustrated in Fig. 5B which is a plan view.
- the sheet 60 located at the bottom of the batch is anteriorly fed onto the transporting conveyor 140.
- the respective sheets 60 are brought into a state of partially overlapping each other, and are continuously supplied one by one to a hopper 201 of the paper feeding unit 200 of the printer.
- the reason for bringing the sheets 60 into the state of partially overlapping each other on the transporting conveyor 140 in this way is to stably stack the sheets 60 inside the hopper 201.
- a trailing edge of the preceding sheet 60 is pressed by the subsequent sheet 60.
- the sheet 60 maintains a substantially horizontal posture, and thus, the sheet 60 does not fall into the hopper 201 with a tilted posture.
- the sheets 60 stacked on the paper feeding tray 110 are not always horizontally stacked. As illustrated in Figs. 5C and 5D which are views of an arrow A in Fig. 5A , in some cases, the sheets 60 are obliquely stacked or warped. If the sheets 60 stacked on the paper feeding tray 110 are warped or tilted in this way, when the sheets 60 are pushed out by the pusher 120 due to the warpage or tilting, the sheets 60 are caught on a front contact plate 111 which is erected in the paper feeding tray 110 and which is located on a leading edge side of the sheets 60, or are twisted inside a plane by only one side being pressed in a width direction of the sheets. As a result, in some cases, the sheets 60 in an oblique state are pushed out onto the transporting conveyor 140, or the respective sheets 60 cannot be stably separated from each other in the hopper 201.
- Figs. 6a and 6B are views for describing paper feeding performed by the paper feeding device in the related art.
- Fig. 6A illustrates a front view illustrating the vicinity on an upper side of the paper feeding tray 110
- Fig. 6B illustrates a plan view of sheets 61 to 64 at a position corresponding to Fig. 6A , respectively.
- Figs. 6A and 6B when the batch of sheets 60B is pushed out, if the sheet 61 at the bottom of the batch of sheets 60B is caught on the front contact plate 111, the sheet 61 remains in the paper feeding tray 110 in a state where the sheet 61 is tilted toward the front contact plate 111 as illustrated in Fig.
- the reference numeral L in Fig. 6B represents a length dimension of the sheets 60 (60 (sic) to 64).
- Figs. 7A and 7B are views for describing another case of paper feeding performed by the paper feeding device in the related art.
- Fig. 7A illustrates a front view illustrating the vicinity on the upper side of the paper feeding tray 110
- Fig. 7B illustrates a plan view of the sheets 61 to 64 at a position corresponding to that of Fig. 7A , respectively.
- the sheet 61 at the bottom of the batch of sheets 60B pushed out onto the transporting conveyor 140 comes into contact with the front contact plate 111, and thus, the leading edge of the sheet 61 is folded or torn. This leads to trouble when the sheet 61 falls into the hopper 201 of the paper feeding unit 200 of the printer.
- the batch dismantling rollers 151 and 152 disposed above the transporting conveyor 140 feed each sheet 60 in the batch of sheets 60B one by one sequentially starting from the sheet 60 located below to the paper feeding unit 200 of the printer so that the sheets 60 partially overlap each other.
- the continuously fed sheets 61 to 64 are horizontally misaligned with each other, or the overlapped volume becomes uneven, thereby causing difficulty in allowing stable flow conditions. For example, as illustrated in Fig.
- FIG. 8A partial front view illustrating the vicinity of the transporting conveyor of the paper feeding device in the related art
- a case may be considered in which the sheets 60 are supplied to the hopper 201 of the paper feeding unit 200 of the printer in a state where the sheets 61 and 62 located at the bottom of the batch of sheets 60B pushed out onto the transporting conveyor 140 are tilted, as illustrated in Fig. 8B (plan view of the batch of sheets 60B).
- Figs. 9A and 9B illustrate a configuration in the vicinity of the hopper 201 of the paper feeding unit 200
- Fig. 9A is the front view
- Fig. 9A is the front view
- Fig. 9A is the front view
- a paper feeding device or a paper feeding method by which the sheets 60 can be stably fed one by one to the hopper 201 of the paper feeding unit 200 of the printer, in a state where the sheets 60 which are not bent or twisted overlap each other on the transporting conveyor 140 at substantially constant intervals, even in a state where the sheets 60 stacked on the paper feeding tray 110 are curvedly or obliquely stacked and overlapped at a top position as illustrated in Fig. 5C or 5D .
- PTL 1 discloses a method and device as follows.
- an adsorption tool adsorbing the paper sheet is moved forward so as to supply the paper sheet to a section between a delivery roller and a paper pressing roller (hereinafter, referred to as an inter-roller section) via multiple blade plates disposed forward in parallel
- transferring work of paper sheets is smoothly carried out in the inter-roller section by blowing air to the paper sheets from below so as to guide the paper sheets to the inter-roller section.
- the paper sheets can be smoothly supplied to a section between the delivery roller and the paper pressing roller.
- PTL 1 does not disclose a configuration in which the sheets are arranged on the transporting conveyor so as to overlap each other at substantially constant intervals.
- a technique disclosed in PTL 1 does not focus on the speed of the paper sheets delivered by the adsorption tool and the circumferential speed of the rollers (speed of the paper sheets delivered by the delivery roller and the paper pressing roller). For example, if the speed of the paper sheets delivered by the adsorption tool is too fast, a trailing edge of the preceding paper sheet while being delivered by the rollers and a leading edge of the subsequent paper sheet delivered by the adsorption tool interfere with each other, thereby causing the possibility that the paper sheet may be folded or may be delayed when being transferred from the adsorption tool to the rollers.
- the present invention aims to provide a paper feeding device and a paper feeding method by which sheets can be stably fed one by one to downstream equipment (for example, a hopper of a paper feeding unit of printers or die cutting devices), in a state where the sheets which are not bent or twisted overlap each other on a transporting conveyor at substantially constant intervals, even in a state where the sheets stacked on a paper feeding tray are curvedly or obliquely stacked and overlapped at a top position.
- downstream equipment for example, a hopper of a paper feeding unit of printers or die cutting devices
- a paper feeding device for solving the above-described problems includes a paper feeding tray on which multiple sheets are stacked in a vertical direction, sheet feeding means for horizontally feeding one sheet located on the top of the multiple sheets stacked on the paper feeding tray, and a pair of feeding rollers that are disposed adjacent to the paper feeding tray, and that grasp a leading edge in a moving direction of the sheet fed by the sheet feeding means so as to deliver the sheet in a direction away from the paper feeding tray.
- the feeding rollers are variable speed rollers which can increase and decrease circumferential speed while one sheet is delivered entirely from the leading edge in the moving direction to a trailing edge in the moving direction.
- the feeding roller is the variable speed roller that maintains the circumferential speed which is the same as the speed of the sheet fed by the sheet feeding means when the sheet feeding means grasps the sheet, that increases the speed from the circumferential speed which is the same as the speed of the sheet fed by the sheet feeding means after the sheet feeding means grasps the sheet, and that decreases the speed down to the feeding speed of the sheet until the sheet feeding means subsequently grasps the subsequent sheet.
- the paper feeding device may further include a transporting conveyor that transports the sheet delivered from the feeding rollers.
- transporting speed of the transporting conveyor is set to be slower than an average circumferential speed obtained from when one sheet is grasped by the feeing roller until the subsequent sheet is grasped by the feeding rollers.
- the sheet feeding means transports the sheet by fixing a rear portion of the sheet.
- the transporting conveyor is a variable speed conveyor which can adjust the transporting speed in accordance with the length of a sheet.
- a paper feeding method in which sheet feeding means takes out multiple stacked sheets one by one starting from a sheet located on the top, and transfers the sheet to a pair of feeding rollers so as to supply one sheet to another device via the feeding rollers.
- the paper feeding method includes a first step of causing circumferential speed when the feeding rollers grasp the sheet to coincide with speed of the sheet fed by the sheet feeding means, a second step of increasing the circumferential speed of the feeding rollers while the subsequent one sheet is delivered entirely from a leading edge to a trailing edge, and a third step of decreasing the speed so that the circumferential speed of the feeding rollers coincides with the speed of the sheet fed by the sheet feeding means until the feeding rollers subsequently grasp the subsequent sheet.
- downstream equipment may be a transporting conveyor. It is preferable to adopt an aspect in which multiple sheets partially overlap each other on the transporting conveyor by setting the transporting speed of the transporting conveyor to be slower than an average circumferential speed obtained from when one sheet is grasped by the feeing rollers until the subsequent sheet is grasped by the feeding rollers.
- sheet feeding means for horizontally feeding one sheet located on the top of multiple sheets stacked on a paper feeding tray is used so as to deliver the sheet to a pair of feeding rollers.
- the pair of feeding rollers are variable speed rollers which can increase and decrease circumferential speed while one sheet is delivered entirely from a leading edge to a trailing edge.
- the sheet feeding means can take out the sheets one by one starting from the sheet located on the top. Therefore, unlike a technique of pushing out a batch of sheets such as a technique in the related art, the sheet can be taken out by adopting a normal posture.
- the feeding roller is configured to be the variable speed roller. Accordingly, the circumferential speed of the feeding roller can be appropriately changed from when the sheets are received by upstream equipment until the sheets are transferred to downstream equipment. In this manner, the sheets can be smoothly transported. Therefore, the sheets in a state where the sheets are not bent or twisted can be stably fed one by one to the downstream equipment (for example, printers or die cutting devices).
- the transporting speed of the transporting conveyor is set to be slower than an average circumferential speed obtained from when one sheet is grasped by the feeing rollers until the subsequent sheet is grasped by the feeding rollers.
- This enables the transporting conveyor to transport the sheets in an overlapping state. Therefore, the trailing edge of the preceding sheet is pressed by the subsequent sheet.
- the sheets can also be stably fed to the downstream equipment (for example, a paper feeding hopper of printers) by adopting a correct posture.
- a paper feeding device 1 As illustrated in a schematic front view in Fig. 1 , a paper feeding device 1 according to the present embodiment is disposed adjacent to a paper feeding unit 200 of a printer.
- the paper feeding unit 200 of the printer includes a hopper 201, and functions as a mechanism which delivers sheets stacked in the hopper 201, for example, cardboard sheets, one by one starting from the bottom.
- the paper feeding device 1 is disposed adjacent to the paper feeding unit 200 of the printer.
- the paper feeding device 1 may be disposed adjacent to a paper feeding unit of a paperboard die cutting device.
- the paper feeding device 1 includes a paper feeding tray 10 on which multiple sheets 60 are stacked in a vertical direction, sheet feeding means 20 that is disposed above the paper feeding tray 10 so as to horizontally feed one sheet 60 located on the top of the multiple sheets 60 stacked on the paper feeding tray 10, feeding rollers 30 having a pair of an upper roller 30a and a lower roller 30b which are disposed adjacent to the paper feeding tray 10 and which grasp a leading edge in a moving direction of the sheet 60 fed by the sheet feeding means 20 so as to deliver the sheet 60 in a direction away from the paper feeding tray 10, and a transporting conveyor 40 that is disposed on a downstream side in the sheet moving direction of the feeding rollers 30, and that transports the sheet delivered from the feeding rollers.
- the paper feeding tray 10 on which the multiple sheets 60 are stacked in the vertical direction includes a lifting device 11.
- the lifting device 11 lifts up the paper feeding tray 10 by each predetermined amount so that a position of the sheet 60 on the top maintains a predetermined height for the sheet feeding means 20, since the height of the sheets 60 stacked on the paper feeding tray 10 is lowered while the sheet feeding means 20 feeds the sheets 60 stacked on the paper feeding tray 10 toward the transporting conveyor 40 sequentially starting from the sheet 60 on the top.
- the lifting device 11 is raised by the predetermined amount, if the sheet feeding means 20 and the feeding rollers 30 completely transport the sheet 60 on the top to a transporting belt (sic) 40. In this manner, a constant distance is maintained between the sheet 60 on the top of the sheets 60 stacked on the paper feeding tray 10 and suction pads 21a and 21b (to be described later) serving as a configuration member of the sheet feeding means 20.
- the sheet feeding means 20 feeds the sheets 60 stacked on the paper feeding tray 10 one by one starting from the top toward the feeding rollers 30.
- the sheet feeding means 20 includes the suction pad 21a which is disposed near a trailing edge of the sheet 60 located on the top of the stacked sheets 60 so as to adsorb the sheet 60, and the suction pad 21b which is disposed separately from the suction pad 21a so as to adsorb the sheet 60 and which is horizontally movable.
- the suction pad 21a and the suction pad 21b are connected to a suction pump 22.
- An intake pipe 23a is disposed between the suction pad 21a and an intake side of the suction pump 22, and an intake pipe 23b is disposed between the suction pad 21b and the intake side of the suction pump 22.
- an exhaust pipe 24a is disposed between the suction pad 21a and an exhaust side of the suction pump 22, and an exhaust pipe 24b is disposed between the suction pad 21b and the exhaust side of the suction pump 22.
- a motor 25 is disposed as a drive source for horizontally moving the suction pad 21b. An operation of the motor 25 is controlled by a control device 50.
- the suction pad 21a and the suction pad 21b can respectively and independently adsorb and release the sheet 60.
- the sheet feeding means 20 operates the suction pump 22, and causes the suction pad 21a to adsorb and lift up the vicinity of the trailing edge of the sheet 60 on the top via the intake pipe 23a.
- the sheet feeding means 20 causes the suction pad 21b to adsorb and hold the sheet 60 on the top via the intake pipe 23b, and operates the motor 25 so as to move the suction pad 21b together with the sheet 60 toward the feeding rollers 30. In this manner, the sheets are fed to the feeding rollers 30.
- Exhaust air of the suction pump 22 is used in order to release the sheet 60 adsorbed by the suction pads 21a and 21b, and air is blown out from the suction pads 21a and 21b via the exhaust pipes 24a and 24b so as to detach the sheet 60.
- the suction pad 21a of the sheet feeding means 20 is disposed in the rear portion (in detail, it is preferable that an adsorption position of the suction pad 21a is located on the rear side of the sheet 60).
- the suction pad 21a is disposed in the vicinity (rear portion) of the trailing edge of the sheet 60. Since the suction pad 21a is disposed in the rear portion, a time required to feed one sheet 60 can be further shortened compared to a case where the suction pad 21a is disposed on the leading edge side (in the front portion). The reason is that working efficiency can be improved.
- the following reason shows that the time required to feed the sheet 60 to the feeding rollers 30 can be shortened if the suction pad 21a is disposed in the rear portion, rather than the front portion, of the sheet 60.
- the suction pad 21a can adsorb the subsequent sheet 60 after transportation using the suction pad 21b by causing the trailing edge of the preceding sheet 60 to pass below the suction pad 21a. Therefore, as the suction pad 21a is disposed further away on the rear side, the suction pad 21a is closer to the trailing edge of the sheet 60. Accordingly, the time required until the trailing edge of the sheet 60 passes below the suction pad 21a (that is, the time required until the subsequent sheet 60 can be adsorbed) can be shortened, and thus, the time required to feed the sheet 60 to the feeding rollers 30 can be shortened correspondingly.
- the feeding rollers 30 grasp the sheet 60, and supply the sheet 60 to the transporting conveyor 40.
- the feeding rollers 30 are disposed between the sheet feeding means 20 and an entrance side of the transporting conveyor 40.
- the feeding rollers 30 have a pair of the upper roller 30a and the lower roller 30b which are vertically disposed, and a motor 31 for driving the lower roller 30b.
- the operation and rotation speed of the motor 31 are controlled by the control device 50.
- the feeding rollers 30 grasp one sheet 60 between the upper roller 30a and the lower roller 30b, and deliver the sheet 60 to the transporting conveyor 40 by using a drive force of the motor 31.
- a configuration can be adopted in which the motor 31 drives not only the lower roller 30b, but also the upper roller 30a.
- a configuration can also be adopted in which a separate motor 31 is disposed so that the separate motor drives the upper roller 30a.
- the circumferential speed (to be described later) of the feeding rollers 30 is caused to substantially coincide with the supply speed of the sheet 60 fed from the sheet feeding means 20 at an initial stage (until the leading edge of the sheet 60 is grasped between the upper roller 30a and the lower roller 30b).
- the circumferential speed is increased up to a predetermined speed after the leading edge of the sheet 60 is grasped between the upper roller 30a and the lower roller 30b.
- the transporting conveyor 40 feeds the sheet 60 to the hopper 201 of the paper feeding unit 200 of the printer.
- the transporting conveyor 40 has an endless belt 41 which transports the sheet 60 delivered from the feeding rollers 30.
- the belt 41 is wound around a drive roller 42 disposed on an entrance side of the transporting conveyor 40, an exit-side roller 43 disposed on an exit side of the transporting conveyor 40, and a belt tightening roller 44 for maintaining constant tension by adjusting tension of the belt.
- the drive roller 42 is driven by a motor 45 so as to circularly move the belt 41.
- the operation and rotation speed of the motor 45 are controlled by the control device 50.
- the conveyor speed of the transporting conveyor 40 is set so that the multiple sheets 60 overlap each other on the belt 41 of the transporting conveyor 40 with a suitable overlapping amount.
- the exit-side roller 43 is a driven roller rotating together with the belt 41.
- the sheet 60 delivered from the feeding rollers 30 is placed on an upper surface of the belt 41 between the drive roller 42 and the exit-side roller 43, and is transported to a position of the exit-side roller 43 by the drive roller 42 circularly moving the belt 41 so as to be supplied to the hopper 201 of the paper feeding unit 200 of the printer.
- a position of a backstop 203 erected on the trailing edge side of the sheet 60 is adjusted in accordance with a length L of the sheet 60. Therefore, the exit-side roller 43 is movable as illustrated by an arrow in the drawing so that a horizontal position of the exit-side roller 43 can be adjusted corresponding to the position of the backstop 203.
- the belt tightening roller 44 has a vertically movable structure corresponding to a position where the exit-side roller 43 is moved.
- a guide roller 46 is disposed in a moving route of the belt 41.
- a transporting surface (upper side on an outer peripheral surface of the belt 41) of the transporting conveyor 40 is lower than an upper end of the lower roller 30b of the feeding rollers 30.
- the subsequent sheets are sequentially delivered onto the sheet 60 on the belt 41 from the feeding rollers 30 located above. Accordingly, a structure is adopted in which the multiple sheets 60 can easily overlap each other on the belt 41.
- a blower 47 which blows out air toward the sheet 60, and the belt 41 is installed above the belt 41 and at an exit of the pair of feeding rollers 30 so that the sheet 60 easily falls onto the upper surface of the belt 41.
- a presser roller 48 is arranged in multiple rows on the upper side of the transporting conveyor 40 so that the posture of the sheet 60 transported on the belt 41 is in disorder.
- a paper feeding method using the paper feeding device 1 according to the present embodiment will be described. Hereinafter, description will be made by using the reference numerals 61 to 63 in order to individually distinguish the sheets 60 from each other.
- the paper feeding device 1 uses the sheet feeding means 20 so as to deliver the sheets 60 stacked on the paper feeding tray 10 one by one starting from the top.
- the paper feeding device 1 supplies the sheet to the paper feeding unit 200 of the printer after the subsequent sheet 62 is caused to partially overlap (wrap) the upper side of the sheet 61 previously fed onto the transporting conveyor 40.
- an operation of the feeding rollers 30 is important.
- the leading edge of the subsequent sheet 62 is fed into a section between the upper roller 30a and the lower roller 30b (hereinafter, referred to as an inter-roller section) of the feeding rollers 30 after the trailing edge of the sheet 61 previously supplied to the feeding rollers 30. Otherwise, the trailing edge of the sheet 61 and the leading edge of the sheet 62 collide with each other, thereby causing the possibility that the sheets 61 and 62 may become jammed in the inter-roller section.
- One measure to avoid collision between the trailing edge of the sheet 61 and the leading edge of the sheet 62 is to adjust speed of the sheet 60 fed by the sheet feeding means 20 so as to be slower.
- the time required to feed one sheet 60 may be longer than that in the related art. Therefore, in a viewpoint of working efficiency of the paper feeding device, it is desirable to prevent the sheet 60 from becoming jammed in the inter-roller section of the feeding rollers 30 by setting the speed of the sheet 60 fed by the sheet feeding means 20 to be the same as that in the related art.
- the present invention employs a variable speed roller which can increase and decrease the circumferential speed of the upper roller 30a and the lower roller 30b.
- the upper roller 30a and the lower roller 30b of the feeding rollers 30 have a function to reliably feed the sheets 60 including the trailing edge one by one onto the transporting conveyor 40 in a state where a predetermined interval is maintained between the sheets 60 without causing the trailing edge of the preceding sheet 61 and the leading edge of the subsequent sheet 62 to interfere with each other (entering a state of being jammed) in the section (feeding rollers 30).
- the speed at which the sheet feeding means 20 feeds the sheet 60 to the feeding rollers 30 (hereinafter, referred to as feeding speed) is set to be the same as the sheet moving speed at which the transporting conveyor 40 feeds the sheet 60 to the hopper 201 of the paper feeding unit 200 of the printer.
- the feeding speed of the sheet 60 of the sheet feeding means 20 is converted into a progressing amount per one cycle during which the suction pad 21b sends one sheet 60 on the top so as to be smaller than the length L of the sheet 60 and to be approximately 50% of the length L of the sheet 60.
- the circumferential speed of the upper roller 30a and the lower roller 30b which grasp the sheet 61 after receiving the sheet 61 from the sheet feeding means 20 is the same speed as the feeding speed at which the sheet feeding means 20 feeds the sheet 60, before the trailing edge of the preceding sheet 61 passes through the section between the upper roller 30a and the lower roller 30b, the leading edge of the subsequent sheet 62 collides with the trailing edge of the sheet 61, thereby clogging the section between the upper roller 30a and the lower roller 30b. Therefore, the circumferential speed of the upper roller 30a and the lower roller 30b is set to be faster than the feeding speed of the sheet feeding means 20.
- the circumferential speed of the upper roller 30a and the lower roller 30b it is necessary to set the circumferential speed of the upper roller 30a and the lower roller 30b to be 200% to 300% or greater than the feeding speed of the sheet feeding means 20.
- the circumferential speed of the upper roller 30a and the lower roller 30b is simply set to be 200% to 300% or greater than the feeding speed of the sheet feeding means 20, a great speed difference occurs between the circumferential speed of the upper roller 30a and the lower roller 30b and the feeding speed of the sheet feeding means 20, thereby causing the possibility that a disadvantage may occur (to be described later).
- the sheet 60 is transferred from the sheet feeding means 20 to the upper roller 30a and the lower roller 30b
- the speed difference is great between the circumferential speed of the upper roller 30a and the lower roller 30b and the feeding speed of the sheet feeding means 20
- the sheet 60 is less likely to be smoothly transferred from the sheet feeding means 20 to the feeding rollers 30. Consequently, the sheet 60 is bent at the transferring stage, or a surface of the sheet 60 (hereinafter, referred to as a sheet surface) is scraped. In some cases, friction scratches appear on the sheet surface, or a surface layer is separated.
- the feeding rollers 30 employ variable speed rollers. In this manner, the above-described disadvantage is relieved by changing the circumferential speed of the upper rollers 30a and the lower roller 30b of the feeding rollers 30 during one cycle on which the sheet feeding means 20 feeds one sheet 60.
- the circumferential speed of the upper rollers 30a and the lower roller 30b of the feeding rollers 30 is set to coincide with the feeding speed of the sheet feeding means 20.
- the circumferential speed is increased at the timing when the trailing edge of the sheet 61 is released from the sheet feeding means 20.
- the trailing edge of the sheet 61 is caused to pass until the subsequent sheet 62 arrives.
- the speed is decreased down again to the feeding speed of the sheet feeding means 20 so that the circumferential speed and the sheet feeding speed coincide with each other.
- the circumferential speed of the feeding rollers 30 as described above is adjusted. In this manner, the feeding rollers 30 grasp the sheets 60 located on the top of the paper feeding tray 10 one by one, and deliver the sheets 60 onto the transporting conveyor 40.
- the subsequently delivered sheet 62 overlaps the sheet 61 previously delivered by the feeding rollers 30, and this operation (partially overlapping the preceding sheet 60 with the subsequent sheet 60) is repeatedly performed, thereby continuously bringing the multiple sheets 60 into a state of partially overlapping each other.
- the moving speed of the belt 41 of the transporting conveyor 40 (that is, the transporting speed of the transporting conveyor 40) is set to be slower than the speed of the sheet 60 delivered from the feeding rollers 30, that is, the circumferential speed of the upper roller 30a and the lower roller 30b (in this case, an average circumferential speed).
- An overlapping degree between the previously delivered sheet 61 and the subsequently delivered sheet 62 is properly adjusted by controlling the moving speed of the belt 41 of the transporting conveyor 40 in accordance with the size (length L) of the sheets 61 and 62.
- the above-described average circumferential speed of the upper roller 30a and the lower roller 30b means time average circumferential speed of the circumferential speed changed during a period from when the sheet 60 delivered by the sheet feeding means 20 is grasped (received) until the sheet 60 subsequently delivered by the sheet feeding means 20 is grasped (received).
- the moving speed of the belt 41 of the transporting conveyor 40 is set as the above-described sheet progressing amount per one cycle for the average circumferential speed so that the sheet progressing amount is smaller than the sheet length Ls. Accordingly, the sheet 61 and the sheet 62 partially overlap each other, and the sheet 62 and the sheet 63 partially overlap each other on the transporting conveyor 40. In this manner, the multiple sheets 60 are sequentially brought into a state of overlapping each other.
- An overlapping amount of the sheets 60 can be optionally changed by changing the moving speed of the belt 41 of the transporting conveyor 40 in accordance with other conditions, for example, a state of the sheets 60, specifically such as size, thickness, and weight.
- the sheets 60 are caused to fall one by one starting from the transporting conveyor 40 into the hopper 201 of the paper feeding unit 200 of the printer. In this case, if the sheets 60 are in a state of partially overlapping each other on the transporting conveyor 40, the trailing edge of the sheet 61 is pressed by the subsequent sheet 62. Accordingly, the sheets 60 stably fall by adopting a more substantially horizontal posture.
- the sheet feeding means 20 in Figs. 2A to 2F is a device which adsorbs the rear portion of the sheet 60 so as to transfer the sheet 60 to the feeding rollers 30.
- the suction pad 21a of the sheet feeding means 20 is lowered for the sheet 60 on the top of the sheets 61 stacked on the paper feeding tray 10 (refer to Fig. 1 ).
- the suction pump 22 (refer to Fig. 1 ) is operated so as to bring the inside of the suction pad 21a into a state of negative pressure.
- the suction pad 21a adsorbs the sheet 61, and then is raised so as to lift up the sheet 61.
- the inside of the suction pad 21b is brought into a state of negative pressure, and the lifted sheet 61 is held by the suction pad 21b. Thereafter, air is blown to the suction pad 21a by using exhaust air of the suction pump 22 so as to detach the sheet 61 from the suction pad 21a.
- the sheet 61 is moved forward (moved to the left in the drawing), and is transferred to a section between the upper roller 30a and the lower roller 30b of the feeding rollers 30.
- a distance between the lower end of the upper roller 30a and the upper end of the lower roller 30b can be changed in accordance with the thickness of the sheet 61.
- the sheet 61 arrives at the section between the upper roller 30a and the lower roller 30b, the sheet 61 is grasped by the upper roller 30a and the lower roller 30b so as to be delivered to the transporting conveyor 40.
- the circumferential speed of the upper roller 30a and the lower roller 30b is synchronized with the moving speed of the suction pad 21b.
- the suction pad 21b releases the holding of the sheet 61 similarly to the suction pad 21a, and is moved rearward so as to move to a standby position.
- the circumferential speed of the upper roller 30a and the lower roller 30b is increased after the sheet 61 is grasped, and the sheet 61 is discharged to the transporting conveyor 40 before the subsequent sheet 62 starts to be fed to the paper feeding (sic) rollers 30.
- the speed of the transporting conveyor 40 that is, the moving speed of the belt 41 is set be slower than the circumferential speed of the upper roller 30a and the lower roller 30b of the feeding rollers 30 so that the multiple sheets 60 overlap each other in accordance with the length L of the sheet 60, and is variable in accordance with the length L of the sheet 61.
- the operations in Figs. 2A to 2E are repeatedly performed.
- the sheets can be brought into a state where the subsequent sheet 62 partially overlaps the upper side of the preceding sheet 61.
- the sheet feeding means 20 illustrated in Figs. 1 and 2A to 2F employs a method of adsorbing the rear portion of the sheet 60 stacked on the paper feeding tray 10 so as to be fed to the upper roller 30a and the lower roller 30b of the feeding rollers 30.
- the sheet feeding means according to the present invention is not limited to the sheet feeding means 20 illustrated in Fig. 1 .
- general sheet feeding means for feeding the stacked sheets 60 one by one starting from the top includes not only those which adsorb the rear portion of the sheet 60 as illustrated in Fig. 1 , but also those which adsorb the front portion of the sheet 60.
- the sheet feeding means according to the present invention may be configured in this way.
- Fig. 3 illustrates another example of the sheet feeding means.
- Sheet feeding means 20A illustrated in Fig. 3 adopts a configuration in which a suction-type transporting belt 26 for circularly moving the sheet 60 while adsorbing the sheet 60 is disposed above the sheet 60.
- the sheet feeding means 20A adopts a configuration in which the suction-type transporting belt 26 is arranged above the paper feeding tray 10.
- the suction-type transporting belt 26 is a circularly moving endless belt which has a suction hole.
- Suction means 26a is disposed on an inner peripheral side thereof.
- the transporting belt 26 feeds the sheet 60 stacked on the paper feeding tray 10 to the feeding rollers 30 by adsorbing the sheets 60 one by one starting from the top.
- Fig. 4 illustrates further another example of the sheet feeding means.
- Sheet feeding means 20B illustrated in Fig. 4 has a kicker 27 which presses the trailing edge of one sheet 60, and feeds the sheets 60 one by one starting from the top of the stacked sheets 60.
- the kicker 27 is movable forward to and rearward from the feeding rollers 30 by a type of means (not illustrated).
- the sheets 60 can be fed one by one to the feeding rollers 30 from the top of the sheets 60 stacked on the paper feeding tray 10 by moving the kicker 27 forward to the feeding rollers 30.
- the sheet feeding means 20A and 20B illustrated in Figs. 3 and 4 are combined with the above-described feeding rollers 30 whose circumferential speed is variable. In this manner, it is possible to obtain the same operation and effect as those of the paper feeding device 1 illustrated in Figs. 1 and 2 .
- the paper feeding device can be configured by employing the above-described sheet feeding means 20A or the above-described sheet feeding means 20B, instead of the sheet feeding means 20 illustrated in Figs. 1 and 2 .
- the feeding rollers 30 can correspond to the sheet feeding means 20 illustrated in Fig. 1 , the sheet feeding means 20A illustrated in Fig. 3 , and the sheet feeding means 20B illustrated in Fig. 4 .
- the feeding rollers 30 can also correspond to any system as long as the sheet feeding means is similarly configured and is further configured to be capable of feeding the sheets 60 one by one starting from the top of the multiple stacked sheets.
- the sheet feeding means in the paper feeding device is not limited to the above-described sheet feeding means 20, 20A, and 20B, and can employ any type as long as the type is sheet feeding means which can take out and feed the sheets 60 one by one starting from the top of the stacked sheets.
- the motor 25 for horizontally moving the suction pad 21b of the sheet feeding means 20, the motor 31 for driving the lower roller 30b of the feeding rollers 30, and the motor 45 for driving the belt 41 of the transporting conveyor 40 are respectively disposed in the paper feeding unit 200 of the printer.
- the rotation speed of the motors 25, 31, and 45 is controlled by the control device 50 so as to allow proportional follow-up, based on the rotation speed of a motor 204 for driving a roller which delivers sheets one by one to a printer main body.
- the respective motors of the paper feeding device 1 are controlled by the control device 50, it is not essential to control the respective motors based on the rotation speed of the drive motor 204.
- the paper feeding device 1 adopts a configuration in which the motor 31 and the motor 45 are respectively and independently disposed in the lower roller 30b and the belt 41, and in which the operation amounts of the motors 31 and 45 can be respectively and independently controlled by the control device 50. That is, the lower roller 30b and the belt 41 are driven by using an independent drive system so that the circumferential speed of the lower roller 30b and the belt moving speed of the belt 41 are respectively and independently controlled by the control device 50.
- the feeding rollers 30 continuously feed the sheets 60 one by one starting from the top of the stacked sheets 60 onto the transporting conveyor 40.
- the sheets 60 can be supplied to the hopper 201 of the paper feeding unit 200 of the printer.
- the sheet feeding means supplies the sheets 60 one by one starting from the top of the stacked sheets 60. Accordingly, even when the sheet 60 stacked on the supply tray (sic) 10 is warped or tilted, the thickness becomes narrow compared to a case where the multiple sheets 60 are collectively pushed out from the supply tray (sic), as in the technique in the related art. Accordingly, the sheets 60 are less likely to interfere with the supply tray (sic) 10. Therefore, the sheets 60 can be stably supplied to the transporting conveyor 40 without the sheets 60 being twisted or folded.
- An overlapping amount of the sheets 60 can be set in accordance with the sheet length L by a servo motor driving the feeding rollers 30 and the transporting conveyor 40. Accordingly, it is possible to maintain a substantially constant sheet overlapping amount. This stabilizes the posture of the sheets 60 falling into the hopper 201 of the paper feeding unit 200 of cardboard printers or paperboard die cutting devices. Therefore, it is possible to prevent the sheets 60 from not being accommodated inside the hopper 201 after being caught on the side guide 202 (from not falling tidily).
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
- Delivering By Means Of Belts And Rollers (AREA)
- Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
Abstract
Description
- The present invention relates to a paper feeding device and a paper feeding method, and more particularly relates to a device and method for supplying a sheet of cardboard or paperboard to a paper feeding unit of printers or die cutting devices.
- Some printers or die cutting devices have a hopper for temporarily holding a sheet in a paper feeding unit of the sheet for printing or die cutting. When the printers or the die cutting devices are operated, it is necessary to continuously feed the sheet one by one or to intermittently feed a batch of multiple sheets (in general, approximately 20 sheets) to the hopper so that the sheet held in the hopper does not run out.
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Figs. 5A to 5D illustrate an example of a paper feeding device in the related art in which the sheet is fed to the hopper of the paper feeding unit of these printers or die cutting devices. As illustrated in a schematic front view inFig. 5A , apaper feeding device 101 is disposed adjacent to thepaper feeding unit 200 of the printer. InFig. 5A , illustration of a printer main body is omitted. - The
paper feeding device 101 includes apaper feeding tray 110 on whichmultiple sheets 60 are stacked in a vertical direction, apusher 120 which is disposed above thepaper feeding tray 110 and which serves as sheet feeding means for feeding the multiple sheets stacked on thepaper feeding tray 110 in a horizontal direction at a time, and a transportingconveyor 140 which is disposed adjacent to thepaper feeding tray 110 and which transports the multiple sheets fed by thepusher 120. - The
paper feeding device 101 causes thepusher 120 to push out themultiple sheets 60 stacked on thepaper feeding tray 110 onto the transportingconveyor 140 as a batch ofmulti-stacked sheets 60B. -
Batch dismantling rollers batch dismantling device 150 are disposed above the transportingconveyor 140 by leaving a distance from an upper surface of abelt 141 of the transportingconveyor 140. The batch dismantling rollers (hereinafter, simply referred to as rollers) 151 and 152 are illustrated inFig. 5B which is a plan view. Within the batch ofsheets 60B moving on the transportingconveyor 140, thesheet 60 located at the bottom of the batch is anteriorly fed onto the transportingconveyor 140. In this mode, therespective sheets 60 are brought into a state of partially overlapping each other, and are continuously supplied one by one to ahopper 201 of thepaper feeding unit 200 of the printer. - The reason for bringing the
sheets 60 into the state of partially overlapping each other on the transportingconveyor 140 in this way is to stably stack thesheets 60 inside thehopper 201. A trailing edge of the precedingsheet 60 is pressed by thesubsequent sheet 60. As a result, when falling into thehopper 201, thesheet 60 maintains a substantially horizontal posture, and thus, thesheet 60 does not fall into thehopper 201 with a tilted posture. - However, according to the
paper feeding device 101 in the related art illustrated inFigs. 5A and 5B , when thesheets 60 as the batch ofsheets 60B is pushed out from thepaper feeding tray 110 to the transportingconveyor 140 by using thepusher 120, depending on the state of thesheets 60 stacked on thepaper feeding tray 110, there is a possibility that the batch ofsheets 60B may have a disordered shape. - More specifically, the
sheets 60 stacked on thepaper feeding tray 110 are not always horizontally stacked. As illustrated inFigs. 5C and 5D which are views of an arrow A inFig. 5A , in some cases, thesheets 60 are obliquely stacked or warped. If thesheets 60 stacked on thepaper feeding tray 110 are warped or tilted in this way, when thesheets 60 are pushed out by thepusher 120 due to the warpage or tilting, thesheets 60 are caught on afront contact plate 111 which is erected in thepaper feeding tray 110 and which is located on a leading edge side of thesheets 60, or are twisted inside a plane by only one side being pressed in a width direction of the sheets. As a result, in some cases, thesheets 60 in an oblique state are pushed out onto the transportingconveyor 140, or therespective sheets 60 cannot be stably separated from each other in thehopper 201. -
Figs. 6a and 6B are views for describing paper feeding performed by the paper feeding device in the related art.Fig. 6A illustrates a front view illustrating the vicinity on an upper side of thepaper feeding tray 110, andFig. 6B illustrates a plan view ofsheets 61 to 64 at a position corresponding toFig. 6A , respectively. As illustrated inFigs. 6A and 6B , when the batch ofsheets 60B is pushed out, if thesheet 61 at the bottom of the batch ofsheets 60B is caught on thefront contact plate 111, thesheet 61 remains in thepaper feeding tray 110 in a state where thesheet 61 is tilted toward thefront contact plate 111 as illustrated inFig. 6B , thereby hindering a smooth forward movement of thesheets sheet 61. Consequently, thesheets sheet 61 are tilted. The reference numeral L inFig. 6B represents a length dimension of the sheets 60 (60 (sic) to 64). - In addition,
Figs. 7A and 7B are views for describing another case of paper feeding performed by the paper feeding device in the related art.Fig. 7A illustrates a front view illustrating the vicinity on the upper side of thepaper feeding tray 110, andFig. 7B illustrates a plan view of thesheets 61 to 64 at a position corresponding to that ofFig. 7A , respectively. As illustrated inFigs. 7A and 7B , thesheet 61 at the bottom of the batch ofsheets 60B pushed out onto the transportingconveyor 140 comes into contact with thefront contact plate 111, and thus, the leading edge of thesheet 61 is folded or torn. This leads to trouble when thesheet 61 falls into thehopper 201 of thepaper feeding unit 200 of the printer. - Then, if the sheets are brought into a state illustrated in
Figs. 6A to 7B , thebatch dismantling rollers conveyor 140 feed eachsheet 60 in the batch ofsheets 60B one by one sequentially starting from thesheet 60 located below to thepaper feeding unit 200 of the printer so that thesheets 60 partially overlap each other. When thesheets 60 are separated and stacked in thehopper 201, the continuously fedsheets 61 to 64 are horizontally misaligned with each other, or the overlapped volume becomes uneven, thereby causing difficulty in allowing stable flow conditions. For example, as illustrated inFig. 8A (partial front view illustrating the vicinity of the transporting conveyor of the paper feeding device in the related art), a case may be considered in which thesheets 60 are supplied to thehopper 201 of thepaper feeding unit 200 of the printer in a state where thesheets sheets 60B pushed out onto the transportingconveyor 140 are tilted, as illustrated inFig. 8B (plan view of the batch ofsheets 60B). In this case, asFigs. 9A and 9B illustrate a configuration in the vicinity of thehopper 201 of the paper feeding unit 200 (Fig. 9A is the front view, andFig. 9B is the plan view), when thesheets 60 are intended to fall into thehopper 201 from the transportingconveyor 140, thesheets side guide 202 of thehopper 201, and do not fall into thehopper 201 in some cases. In addition, if thesheets 60 are tilted, a degree of thesheets 60 overlapping on the transportingconveyor 140 becomes unstable. Thus, a posture of thesheets 60 when falling into thehopper 201 deviates from a normal posture. In this regard, thesheets hopper 201 by adopting the normal posture. - If the
sheets 60 do not tidily fall into thehopper 201 in this way, an operator needs to carry out work for correcting this untidiness. - Therefore, it is desirable to provide a paper feeding device or a paper feeding method by which the
sheets 60 can be stably fed one by one to thehopper 201 of thepaper feeding unit 200 of the printer, in a state where thesheets 60 which are not bent or twisted overlap each other on the transportingconveyor 140 at substantially constant intervals, even in a state where thesheets 60 stacked on thepaper feeding tray 110 are curvedly or obliquely stacked and overlapped at a top position as illustrated inFig. 5C or 5D . - With regard to the paper feeding method and the paper feeding device, PTL 1 discloses a method and device as follows. When paper sheets are adsorbed one by one sequentially from the top of heaped paper sheets, and an adsorption tool adsorbing the paper sheet is moved forward so as to supply the paper sheet to a section between a delivery roller and a paper pressing roller (hereinafter, referred to as an inter-roller section) via multiple blade plates disposed forward in parallel, transferring work of paper sheets is smoothly carried out in the inter-roller section by blowing air to the paper sheets from below so as to guide the paper sheets to the inter-roller section.
- [PTL 1] Japanese Unexamined Patent Application Publication No.
11-106070 - According to the paper feeding method and device disclosed in PTL 1, the paper sheets can be smoothly supplied to a section between the delivery roller and the paper pressing roller. However, PTL 1 does not disclose a configuration in which the sheets are arranged on the transporting conveyor so as to overlap each other at substantially constant intervals.
- In addition, a technique disclosed in PTL 1 does not focus on the speed of the paper sheets delivered by the adsorption tool and the circumferential speed of the rollers (speed of the paper sheets delivered by the delivery roller and the paper pressing roller). For example, if the speed of the paper sheets delivered by the adsorption tool is too fast, a trailing edge of the preceding paper sheet while being delivered by the rollers and a leading edge of the subsequent paper sheet delivered by the adsorption tool interfere with each other, thereby causing the possibility that the paper sheet may be folded or may be delayed when being transferred from the adsorption tool to the rollers.
- The present invention aims to provide a paper feeding device and a paper feeding method by which sheets can be stably fed one by one to downstream equipment (for example, a hopper of a paper feeding unit of printers or die cutting devices), in a state where the sheets which are not bent or twisted overlap each other on a transporting conveyor at substantially constant intervals, even in a state where the sheets stacked on a paper feeding tray are curvedly or obliquely stacked and overlapped at a top position.
- A paper feeding device according to the present invention for solving the above-described problems includes a paper feeding tray on which multiple sheets are stacked in a vertical direction, sheet feeding means for horizontally feeding one sheet located on the top of the multiple sheets stacked on the paper feeding tray, and a pair of feeding rollers that are disposed adjacent to the paper feeding tray, and that grasp a leading edge in a moving direction of the sheet fed by the sheet feeding means so as to deliver the sheet in a direction away from the paper feeding tray. The feeding rollers are variable speed rollers which can increase and decrease circumferential speed while one sheet is delivered entirely from the leading edge in the moving direction to a trailing edge in the moving direction.
- In the paper feeding device according to the present invention, an aspect may be adopted in which the feeding roller is the variable speed roller that maintains the circumferential speed which is the same as the speed of the sheet fed by the sheet feeding means when the sheet feeding means grasps the sheet, that increases the speed from the circumferential speed which is the same as the speed of the sheet fed by the sheet feeding means after the sheet feeding means grasps the sheet, and that decreases the speed down to the feeding speed of the sheet until the sheet feeding means subsequently grasps the subsequent sheet. In addition, the paper feeding device may further include a transporting conveyor that transports the sheet delivered from the feeding rollers. It is preferable that transporting speed of the transporting conveyor is set to be slower than an average circumferential speed obtained from when one sheet is grasped by the feeing roller until the subsequent sheet is grasped by the feeding rollers. In addition, it is preferable that the sheet feeding means transports the sheet by fixing a rear portion of the sheet. Furthermore, it is preferable that the transporting conveyor is a variable speed conveyor which can adjust the transporting speed in accordance with the length of a sheet.
- There is provided a paper feeding method according to the present invention in which sheet feeding means takes out multiple stacked sheets one by one starting from a sheet located on the top, and transfers the sheet to a pair of feeding rollers so as to supply one sheet to another device via the feeding rollers. The paper feeding method includes a first step of causing circumferential speed when the feeding rollers grasp the sheet to coincide with speed of the sheet fed by the sheet feeding means, a second step of increasing the circumferential speed of the feeding rollers while the subsequent one sheet is delivered entirely from a leading edge to a trailing edge, and a third step of decreasing the speed so that the circumferential speed of the feeding rollers coincides with the speed of the sheet fed by the sheet feeding means until the feeding rollers subsequently grasp the subsequent sheet.
- In the paper feeding method according to the present invention, downstream equipment may be a transporting conveyor. It is preferable to adopt an aspect in which multiple sheets partially overlap each other on the transporting conveyor by setting the transporting speed of the transporting conveyor to be slower than an average circumferential speed obtained from when one sheet is grasped by the feeing rollers until the subsequent sheet is grasped by the feeding rollers.
- According to the present invention, sheet feeding means for horizontally feeding one sheet located on the top of multiple sheets stacked on a paper feeding tray is used so as to deliver the sheet to a pair of feeding rollers. The pair of feeding rollers are variable speed rollers which can increase and decrease circumferential speed while one sheet is delivered entirely from a leading edge to a trailing edge. In this manner, even in a state where the sheets stacked on the paper feeding tray are curvedly or obliquely stacked and overlapped at a top position, the sheet feeding means can take out the sheets one by one starting from the sheet located on the top. Therefore, unlike a technique of pushing out a batch of sheets such as a technique in the related art, the sheet can be taken out by adopting a normal posture. In addition, the feeding roller is configured to be the variable speed roller. Accordingly, the circumferential speed of the feeding roller can be appropriately changed from when the sheets are received by upstream equipment until the sheets are transferred to downstream equipment. In this manner, the sheets can be smoothly transported. Therefore, the sheets in a state where the sheets are not bent or twisted can be stably fed one by one to the downstream equipment (for example, printers or die cutting devices).
- Furthermore, in a case including a transporting conveyor which transports the sheets delivered from the feeding rollers, the transporting speed of the transporting conveyor is set to be slower than an average circumferential speed obtained from when one sheet is grasped by the feeing rollers until the subsequent sheet is grasped by the feeding rollers. This enables the transporting conveyor to transport the sheets in an overlapping state. Therefore, the trailing edge of the preceding sheet is pressed by the subsequent sheet. In this regard, the sheets can also be stably fed to the downstream equipment (for example, a paper feeding hopper of printers) by adopting a correct posture.
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Fig. 1 is a schematic front view illustrating an overall configuration of a paper feeding device according to an embodiment of the present invention. -
Figs. 2A to 2F are schematic views for describing a paper feeding method of using the paper feeding device according to an embodiment of the present invention, and are front views of a main section in whichFigs. 2A to 2F sequentially illustrate operations of the paper feeding device in a time-dependent manner. -
Fig. 3 is a schematic front view illustrating another configuration of sheet feeding means according to an embodiment of the present invention. -
Fig. 4 is a schematic front view illustrating another configuration of sheet feeding means according to an embodiment of the present invention. -
Figs. 5A to 5D are schematic views for describing a paper feeding device in the related art.Fig. 5A is a front view illustrating an overall configuration thereof,Fig. 5B is a plan view illustrating a configuration of a batch dismantling roller thereof, andFigs. 5C and 5D are views of an arrow A inFig. 5A . -
Figs. 6A and 6B are views for describing paper feeding performed by the paper feeding device in the related art.Fig. 6A is a front view illustrating an upper portion and the vicinity of apaper feeding tray 110, andFig. 6B is a plan view at a position corresponding toFig. 6A . -
Figs. 7A and 7B are views for describing another case of paper feeding performed by the paper feeding device in the related art.Fig. 7A is a front view illustrating the upper portion and the vicinity of thepaper feeding tray 110, andFig. 6B is a plan view at a position corresponding toFig. 7A . -
Figs. 8A and 8B are partial configuration diagrams illustrating the vicinity of a transporting conveyor of the paper feeding device in the related art.Fig. 8A is a front view thereof, andFig. 8A (sic) is a plan view at a position corresponding toFig. 8A . -
Figs. 9A and 9B are views for describing the vicinity of a hopper of a paper feeding unit of printers in the related art.Fig. 9A is a front view thereof, andFig. 9B is a plan view thereof. - Hereinafter, an embodiment of a paper feeding device and a paper feeding method according to the present invention will be described in detail with reference to the drawings.
- As illustrated in a schematic front view in
Fig. 1 , a paper feeding device 1 according to the present embodiment is disposed adjacent to apaper feeding unit 200 of a printer. InFig. 1 , illustration of a printer main body is omitted. Thepaper feeding unit 200 of the printer includes ahopper 201, and functions as a mechanism which delivers sheets stacked in thehopper 201, for example, cardboard sheets, one by one starting from the bottom. In the present embodiment illustrated in the drawing, the paper feeding device 1 is disposed adjacent to thepaper feeding unit 200 of the printer. However, instead of the paper feeding device 1 disposed adjacent to thepaper feeding unit 200 of the printer, the paper feeding device 1 may be disposed adjacent to a paper feeding unit of a paperboard die cutting device. - The paper feeding device 1 includes a
paper feeding tray 10 on whichmultiple sheets 60 are stacked in a vertical direction, sheet feeding means 20 that is disposed above thepaper feeding tray 10 so as to horizontally feed onesheet 60 located on the top of themultiple sheets 60 stacked on thepaper feeding tray 10, feedingrollers 30 having a pair of anupper roller 30a and alower roller 30b which are disposed adjacent to thepaper feeding tray 10 and which grasp a leading edge in a moving direction of thesheet 60 fed by the sheet feeding means 20 so as to deliver thesheet 60 in a direction away from thepaper feeding tray 10, and a transportingconveyor 40 that is disposed on a downstream side in the sheet moving direction of the feedingrollers 30, and that transports the sheet delivered from the feeding rollers. - The
paper feeding tray 10 on which themultiple sheets 60 are stacked in the vertical direction includes alifting device 11. The liftingdevice 11 lifts up thepaper feeding tray 10 by each predetermined amount so that a position of thesheet 60 on the top maintains a predetermined height for the sheet feeding means 20, since the height of thesheets 60 stacked on thepaper feeding tray 10 is lowered while the sheet feeding means 20 feeds thesheets 60 stacked on thepaper feeding tray 10 toward the transportingconveyor 40 sequentially starting from thesheet 60 on the top. The liftingdevice 11 is raised by the predetermined amount, if the sheet feeding means 20 and the feedingrollers 30 completely transport thesheet 60 on the top to a transporting belt (sic) 40. In this manner, a constant distance is maintained between thesheet 60 on the top of thesheets 60 stacked on thepaper feeding tray 10 andsuction pads - The sheet feeding means 20 feeds the
sheets 60 stacked on thepaper feeding tray 10 one by one starting from the top toward the feedingrollers 30. According to the present embodiment illustrated inFig. 1 , the sheet feeding means 20 includes thesuction pad 21a which is disposed near a trailing edge of thesheet 60 located on the top of thestacked sheets 60 so as to adsorb thesheet 60, and thesuction pad 21b which is disposed separately from thesuction pad 21a so as to adsorb thesheet 60 and which is horizontally movable. Thesuction pad 21a and thesuction pad 21b are connected to asuction pump 22. Anintake pipe 23a is disposed between thesuction pad 21a and an intake side of thesuction pump 22, and anintake pipe 23b is disposed between thesuction pad 21b and the intake side of thesuction pump 22. In addition, anexhaust pipe 24a is disposed between thesuction pad 21a and an exhaust side of thesuction pump 22, and anexhaust pipe 24b is disposed between thesuction pad 21b and the exhaust side of thesuction pump 22. Amotor 25 is disposed as a drive source for horizontally moving thesuction pad 21b. An operation of themotor 25 is controlled by acontrol device 50. Thesuction pad 21a and thesuction pad 21b can respectively and independently adsorb and release thesheet 60. - The sheet feeding means 20 operates the
suction pump 22, and causes thesuction pad 21a to adsorb and lift up the vicinity of the trailing edge of thesheet 60 on the top via theintake pipe 23a. The sheet feeding means 20 causes thesuction pad 21b to adsorb and hold thesheet 60 on the top via theintake pipe 23b, and operates themotor 25 so as to move thesuction pad 21b together with thesheet 60 toward the feedingrollers 30. In this manner, the sheets are fed to the feedingrollers 30. Exhaust air of thesuction pump 22 is used in order to release thesheet 60 adsorbed by thesuction pads suction pads exhaust pipes sheet 60. - When the
sheet 60 is divided into a front portion and a rear portion based on the sheet moving direction, it is preferable to dispose thesuction pad 21a of the sheet feeding means 20 in the rear portion (in detail, it is preferable that an adsorption position of thesuction pad 21a is located on the rear side of the sheet 60). According to the present embodiment illustrated inFig. 1 , thesuction pad 21a is disposed in the vicinity (rear portion) of the trailing edge of thesheet 60. Since thesuction pad 21a is disposed in the rear portion, a time required to feed onesheet 60 can be further shortened compared to a case where thesuction pad 21a is disposed on the leading edge side (in the front portion). The reason is that working efficiency can be improved. - The following reason shows that the time required to feed the
sheet 60 to the feedingrollers 30 can be shortened if thesuction pad 21a is disposed in the rear portion, rather than the front portion, of thesheet 60. - That is, after the
suction pad 21a adsorbs the precedingsheet 60, thesuction pad 21a can adsorb thesubsequent sheet 60 after transportation using thesuction pad 21b by causing the trailing edge of the precedingsheet 60 to pass below thesuction pad 21a. Therefore, as thesuction pad 21a is disposed further away on the rear side, thesuction pad 21a is closer to the trailing edge of thesheet 60. Accordingly, the time required until the trailing edge of thesheet 60 passes below thesuction pad 21a (that is, the time required until thesubsequent sheet 60 can be adsorbed) can be shortened, and thus, the time required to feed thesheet 60 to the feedingrollers 30 can be shortened correspondingly. - The feeding
rollers 30 grasp thesheet 60, and supply thesheet 60 to the transportingconveyor 40. The feedingrollers 30 are disposed between the sheet feeding means 20 and an entrance side of the transportingconveyor 40. The feedingrollers 30 have a pair of theupper roller 30a and thelower roller 30b which are vertically disposed, and amotor 31 for driving thelower roller 30b. The operation and rotation speed of themotor 31 are controlled by thecontrol device 50. The feedingrollers 30 grasp onesheet 60 between theupper roller 30a and thelower roller 30b, and deliver thesheet 60 to the transportingconveyor 40 by using a drive force of themotor 31. In order to improve the drive force for delivering thesheet 60, a configuration can be adopted in which themotor 31 drives not only thelower roller 30b, but also theupper roller 30a. Alternatively, a configuration can also be adopted in which aseparate motor 31 is disposed so that the separate motor drives theupper roller 30a. The circumferential speed (to be described later) of the feedingrollers 30 is caused to substantially coincide with the supply speed of thesheet 60 fed from the sheet feeding means 20 at an initial stage (until the leading edge of thesheet 60 is grasped between theupper roller 30a and thelower roller 30b). The circumferential speed is increased up to a predetermined speed after the leading edge of thesheet 60 is grasped between theupper roller 30a and thelower roller 30b. - The transporting
conveyor 40 feeds thesheet 60 to thehopper 201 of thepaper feeding unit 200 of the printer. The transportingconveyor 40 has anendless belt 41 which transports thesheet 60 delivered from the feedingrollers 30. Thebelt 41 is wound around adrive roller 42 disposed on an entrance side of the transportingconveyor 40, an exit-side roller 43 disposed on an exit side of the transportingconveyor 40, and abelt tightening roller 44 for maintaining constant tension by adjusting tension of the belt. Thedrive roller 42 is driven by amotor 45 so as to circularly move thebelt 41. The operation and rotation speed of themotor 45 are controlled by thecontrol device 50. The conveyor speed of the transportingconveyor 40 is set so that themultiple sheets 60 overlap each other on thebelt 41 of the transportingconveyor 40 with a suitable overlapping amount. The exit-side roller 43 is a driven roller rotating together with thebelt 41. - The
sheet 60 delivered from the feedingrollers 30 is placed on an upper surface of thebelt 41 between thedrive roller 42 and the exit-side roller 43, and is transported to a position of the exit-side roller 43 by thedrive roller 42 circularly moving thebelt 41 so as to be supplied to thehopper 201 of thepaper feeding unit 200 of the printer. In thehopper 201, a position of abackstop 203 erected on the trailing edge side of thesheet 60 is adjusted in accordance with a length L of thesheet 60. Therefore, the exit-side roller 43 is movable as illustrated by an arrow in the drawing so that a horizontal position of the exit-side roller 43 can be adjusted corresponding to the position of thebackstop 203. Thebelt tightening roller 44 has a vertically movable structure corresponding to a position where the exit-side roller 43 is moved. Aguide roller 46 is disposed in a moving route of thebelt 41. - A transporting surface (upper side on an outer peripheral surface of the belt 41) of the transporting
conveyor 40 is lower than an upper end of thelower roller 30b of the feedingrollers 30. In this manner, the subsequent sheets are sequentially delivered onto thesheet 60 on thebelt 41 from the feedingrollers 30 located above. Accordingly, a structure is adopted in which themultiple sheets 60 can easily overlap each other on thebelt 41. - A
blower 47 which blows out air toward thesheet 60, and thebelt 41 is installed above thebelt 41 and at an exit of the pair of feedingrollers 30 so that thesheet 60 easily falls onto the upper surface of thebelt 41. In addition, apresser roller 48 is arranged in multiple rows on the upper side of the transportingconveyor 40 so that the posture of thesheet 60 transported on thebelt 41 is in disorder. - A paper feeding method using the paper feeding device 1 according to the present embodiment will be described. Hereinafter, description will be made by using the
reference numerals 61 to 63 in order to individually distinguish thesheets 60 from each other. - The paper feeding device 1 uses the sheet feeding means 20 so as to deliver the
sheets 60 stacked on thepaper feeding tray 10 one by one starting from the top. In contrast, on the transportingconveyor 40, as illustrated inFig. 1 , the paper feeding device 1 supplies the sheet to thepaper feeding unit 200 of the printer after thesubsequent sheet 62 is caused to partially overlap (wrap) the upper side of thesheet 61 previously fed onto the transportingconveyor 40. In order to bring thesheet 60 into supplying and transporting states in this way, an operation of the feedingrollers 30 is important. - The leading edge of the
subsequent sheet 62 is fed into a section between theupper roller 30a and thelower roller 30b (hereinafter, referred to as an inter-roller section) of the feedingrollers 30 after the trailing edge of thesheet 61 previously supplied to the feedingrollers 30. Otherwise, the trailing edge of thesheet 61 and the leading edge of thesheet 62 collide with each other, thereby causing the possibility that thesheets - One measure to avoid collision between the trailing edge of the
sheet 61 and the leading edge of thesheet 62 is to adjust speed of thesheet 60 fed by the sheet feeding means 20 so as to be slower. However, in order to adjust the speed of thesheet 60 fed by the sheet feeding means 20, the time required to feed onesheet 60 may be longer than that in the related art. Therefore, in a viewpoint of working efficiency of the paper feeding device, it is desirable to prevent thesheet 60 from becoming jammed in the inter-roller section of the feedingrollers 30 by setting the speed of thesheet 60 fed by the sheet feeding means 20 to be the same as that in the related art. For this reason, as the feedingroller 30, the present invention employs a variable speed roller which can increase and decrease the circumferential speed of theupper roller 30a and thelower roller 30b. - The
upper roller 30a and thelower roller 30b of the feedingrollers 30 have a function to reliably feed thesheets 60 including the trailing edge one by one onto the transportingconveyor 40 in a state where a predetermined interval is maintained between thesheets 60 without causing the trailing edge of the precedingsheet 61 and the leading edge of thesubsequent sheet 62 to interfere with each other (entering a state of being jammed) in the section (feeding rollers 30). - As an example, the speed at which the sheet feeding means 20 feeds the
sheet 60 to the feeding rollers 30 (hereinafter, referred to as feeding speed) is set to be the same as the sheet moving speed at which the transportingconveyor 40 feeds thesheet 60 to thehopper 201 of thepaper feeding unit 200 of the printer. The feeding speed of thesheet 60 of the sheet feeding means 20 is converted into a progressing amount per one cycle during which thesuction pad 21b sends onesheet 60 on the top so as to be smaller than the length L of thesheet 60 and to be approximately 50% of the length L of thesheet 60. - When the circumferential speed of the
upper roller 30a and thelower roller 30b which grasp thesheet 61 after receiving thesheet 61 from the sheet feeding means 20 is the same speed as the feeding speed at which the sheet feeding means 20 feeds thesheet 60, before the trailing edge of the precedingsheet 61 passes through the section between theupper roller 30a and thelower roller 30b, the leading edge of thesubsequent sheet 62 collides with the trailing edge of thesheet 61, thereby clogging the section between theupper roller 30a and thelower roller 30b. Therefore, the circumferential speed of theupper roller 30a and thelower roller 30b is set to be faster than the feeding speed of the sheet feeding means 20. For example, it is necessary to set the circumferential speed of theupper roller 30a and thelower roller 30b to be 200% to 300% or greater than the feeding speed of the sheet feeding means 20. However, if the circumferential speed of theupper roller 30a and thelower roller 30b is simply set to be 200% to 300% or greater than the feeding speed of the sheet feeding means 20, a great speed difference occurs between the circumferential speed of theupper roller 30a and thelower roller 30b and the feeding speed of the sheet feeding means 20, thereby causing the possibility that a disadvantage may occur (to be described later). - When a case is considered where the
sheet 60 is transferred from the sheet feeding means 20 to theupper roller 30a and thelower roller 30b, if the speed difference is great between the circumferential speed of theupper roller 30a and thelower roller 30b and the feeding speed of the sheet feeding means 20, thesheet 60 is less likely to be smoothly transferred from the sheet feeding means 20 to the feedingrollers 30. Consequently, thesheet 60 is bent at the transferring stage, or a surface of the sheet 60 (hereinafter, referred to as a sheet surface) is scraped. In some cases, friction scratches appear on the sheet surface, or a surface layer is separated. - Therefore, in the paper feeding device 1 according to the present embodiment, the feeding
rollers 30 employ variable speed rollers. In this manner, the above-described disadvantage is relieved by changing the circumferential speed of theupper rollers 30a and thelower roller 30b of the feedingrollers 30 during one cycle on which the sheet feeding means 20 feeds onesheet 60. - That is, when the feeding
rollers 30 receive thesheet 61, the circumferential speed of theupper rollers 30a and thelower roller 30b of the feedingrollers 30 is set to coincide with the feeding speed of the sheet feeding means 20. After thefeeding rollers 30 receive thesheet 61, the circumferential speed is increased at the timing when the trailing edge of thesheet 61 is released from the sheet feeding means 20. The trailing edge of thesheet 61 is caused to pass until thesubsequent sheet 62 arrives. At the timing when thesubsequent sheet 62 arrives, the speed is decreased down again to the feeding speed of the sheet feeding means 20 so that the circumferential speed and the sheet feeding speed coincide with each other. - The circumferential speed of the feeding
rollers 30 as described above is adjusted. In this manner, the feedingrollers 30 grasp thesheets 60 located on the top of thepaper feeding tray 10 one by one, and deliver thesheets 60 onto the transportingconveyor 40. - On the transporting
conveyor 40, the subsequently deliveredsheet 62 overlaps thesheet 61 previously delivered by the feedingrollers 30, and this operation (partially overlapping the precedingsheet 60 with the subsequent sheet 60) is repeatedly performed, thereby continuously bringing themultiple sheets 60 into a state of partially overlapping each other. For this reason, the moving speed of thebelt 41 of the transporting conveyor 40 (that is, the transporting speed of the transporting conveyor 40) is set to be slower than the speed of thesheet 60 delivered from the feedingrollers 30, that is, the circumferential speed of theupper roller 30a and thelower roller 30b (in this case, an average circumferential speed). An overlapping degree between the previously deliveredsheet 61 and the subsequently deliveredsheet 62 is properly adjusted by controlling the moving speed of thebelt 41 of the transportingconveyor 40 in accordance with the size (length L) of thesheets - Here, the above-described average circumferential speed of the
upper roller 30a and thelower roller 30b means time average circumferential speed of the circumferential speed changed during a period from when thesheet 60 delivered by the sheet feeding means 20 is grasped (received) until thesheet 60 subsequently delivered by the sheet feeding means 20 is grasped (received). - For example, the average circumferential speed of the
upper roller 30a and thelower roller 30b is converted into the sheet feeding speed of the sheet feeding means 20, that is, a progressing amount (hereinafter, referred to as a "sheet length Ls") of thesheet 60 per one cycle on which thesuction pad 21b sends onesheet 60 on the top, and is expressed by sheet length Ls = sheet length L + predetermined distance (approximately 50 mm). - With respect to this average circumferential speed of the
upper roller 30a and thelower roller 30b, the moving speed of thebelt 41 of the transportingconveyor 40 is set as the above-described sheet progressing amount per one cycle for the average circumferential speed so that the sheet progressing amount is smaller than the sheet length Ls. Accordingly, thesheet 61 and thesheet 62 partially overlap each other, and thesheet 62 and thesheet 63 partially overlap each other on the transportingconveyor 40. In this manner, themultiple sheets 60 are sequentially brought into a state of overlapping each other. - An overlapping amount of the
sheets 60 can be optionally changed by changing the moving speed of thebelt 41 of the transportingconveyor 40 in accordance with other conditions, for example, a state of thesheets 60, specifically such as size, thickness, and weight. - The
sheets 60 are caused to fall one by one starting from the transportingconveyor 40 into thehopper 201 of thepaper feeding unit 200 of the printer. In this case, if thesheets 60 are in a state of partially overlapping each other on the transportingconveyor 40, the trailing edge of thesheet 61 is pressed by thesubsequent sheet 62. Accordingly, thesheets 60 stably fall by adopting a more substantially horizontal posture. - With regard to the above-described paper feeding method using the paper feeding device 1 according to the present embodiment, an operation of each configuration element for allowing the preceding
sheet 61 and thesubsequent sheet 62 to partially overlap each other on the transportingconveyor 40 will be described with reference toFigs. 2A to 2F . - Similarly to the device in the related art, the sheet feeding means 20 in
Figs. 2A to 2F is a device which adsorbs the rear portion of thesheet 60 so as to transfer thesheet 60 to the feedingrollers 30. - First, as illustrated in
Fig. 2A , thesuction pad 21a of the sheet feeding means 20 is lowered for thesheet 60 on the top of thesheets 61 stacked on the paper feeding tray 10 (refer toFig. 1 ). The suction pump 22 (refer toFig. 1 ) is operated so as to bring the inside of thesuction pad 21a into a state of negative pressure. Thesuction pad 21a adsorbs thesheet 61, and then is raised so as to lift up thesheet 61. - Next, as illustrated in
Fig. 2B , similar to thesuction pad 21a, the inside of thesuction pad 21b is brought into a state of negative pressure, and the liftedsheet 61 is held by thesuction pad 21b. Thereafter, air is blown to thesuction pad 21a by using exhaust air of thesuction pump 22 so as to detach thesheet 61 from thesuction pad 21a. - Then, as illustrated in
Fig. 2C , in a state of being held by thesuction pad 21b, thesheet 61 is moved forward (moved to the left in the drawing), and is transferred to a section between theupper roller 30a and thelower roller 30b of the feedingrollers 30. A distance between the lower end of theupper roller 30a and the upper end of thelower roller 30b can be changed in accordance with the thickness of thesheet 61. - Next, as illustrated in
Fig. 2D , after thesheet 61 arrives at the section between theupper roller 30a and thelower roller 30b, thesheet 61 is grasped by theupper roller 30a and thelower roller 30b so as to be delivered to the transportingconveyor 40. When thesheet 61 is received, the circumferential speed of theupper roller 30a and thelower roller 30b is synchronized with the moving speed of thesuction pad 21b. After thesheet 61 is grasped by theupper roller 30a and thelower roller 30b, thesuction pad 21b releases the holding of thesheet 61 similarly to thesuction pad 21a, and is moved rearward so as to move to a standby position. - Next, as illustrated in
Fig. 2E , the circumferential speed of theupper roller 30a and thelower roller 30b is increased after thesheet 61 is grasped, and thesheet 61 is discharged to the transportingconveyor 40 before thesubsequent sheet 62 starts to be fed to the paper feeding (sic)rollers 30. The speed of the transportingconveyor 40, that is, the moving speed of thebelt 41 is set be slower than the circumferential speed of theupper roller 30a and thelower roller 30b of the feedingrollers 30 so that themultiple sheets 60 overlap each other in accordance with the length L of thesheet 60, and is variable in accordance with the length L of thesheet 61. - Then, the operations in
Figs. 2A to 2E are repeatedly performed. As illustrated inFig. 2F , the sheets can be brought into a state where thesubsequent sheet 62 partially overlaps the upper side of the precedingsheet 61. - The sheet feeding means 20 illustrated in
Figs. 1 and2A to 2F employs a method of adsorbing the rear portion of thesheet 60 stacked on thepaper feeding tray 10 so as to be fed to theupper roller 30a and thelower roller 30b of the feedingrollers 30. However, the sheet feeding means according to the present invention is not limited to the sheet feeding means 20 illustrated inFig. 1 . - For example, general sheet feeding means for feeding the
stacked sheets 60 one by one starting from the top includes not only those which adsorb the rear portion of thesheet 60 as illustrated inFig. 1 , but also those which adsorb the front portion of thesheet 60. The sheet feeding means according to the present invention may be configured in this way. - In addition,
Fig. 3 illustrates another example of the sheet feeding means. Sheet feeding means 20A illustrated inFig. 3 adopts a configuration in which a suction-type transporting belt 26 for circularly moving thesheet 60 while adsorbing thesheet 60 is disposed above thesheet 60. - That is, the sheet feeding means 20A adopts a configuration in which the suction-
type transporting belt 26 is arranged above thepaper feeding tray 10. The suction-type transporting belt 26 is a circularly moving endless belt which has a suction hole. Suction means 26a is disposed on an inner peripheral side thereof. The transportingbelt 26 feeds thesheet 60 stacked on thepaper feeding tray 10 to the feedingrollers 30 by adsorbing thesheets 60 one by one starting from the top. -
Fig. 4 illustrates further another example of the sheet feeding means. Sheet feeding means 20B illustrated inFig. 4 has akicker 27 which presses the trailing edge of onesheet 60, and feeds thesheets 60 one by one starting from the top of thestacked sheets 60. - That is, the
kicker 27 is movable forward to and rearward from the feedingrollers 30 by a type of means (not illustrated). Thesheets 60 can be fed one by one to the feedingrollers 30 from the top of thesheets 60 stacked on thepaper feeding tray 10 by moving thekicker 27 forward to the feedingrollers 30. - The sheet feeding means 20A and 20B illustrated in
Figs. 3 and4 are combined with the above-describedfeeding rollers 30 whose circumferential speed is variable. In this manner, it is possible to obtain the same operation and effect as those of the paper feeding device 1 illustrated inFigs. 1 and2 . - That is, the paper feeding device according to an embodiment of the present invention can be configured by employing the above-described sheet feeding means 20A or the above-described sheet feeding means 20B, instead of the sheet feeding means 20 illustrated in
Figs. 1 and2 . - The feeding
rollers 30 according to the present invention can correspond to the sheet feeding means 20 illustrated inFig. 1 , the sheet feeding means 20A illustrated inFig. 3 , and the sheet feeding means 20B illustrated inFig. 4 . In addition, the feedingrollers 30 can also correspond to any system as long as the sheet feeding means is similarly configured and is further configured to be capable of feeding thesheets 60 one by one starting from the top of the multiple stacked sheets. - That is, the sheet feeding means in the paper feeding device according to an embodiment of the present invention is not limited to the above-described sheet feeding means 20, 20A, and 20B, and can employ any type as long as the type is sheet feeding means which can take out and feed the
sheets 60 one by one starting from the top of the stacked sheets. - In addition, in the paper feeding device 1 according to the embodiment illustrated in
Fig. 1 , themotor 25 for horizontally moving thesuction pad 21b of the sheet feeding means 20, themotor 31 for driving thelower roller 30b of the feedingrollers 30, and themotor 45 for driving thebelt 41 of the transportingconveyor 40 are respectively disposed in thepaper feeding unit 200 of the printer. The rotation speed of themotors control device 50 so as to allow proportional follow-up, based on the rotation speed of amotor 204 for driving a roller which delivers sheets one by one to a printer main body. However, when the respective motors of the paper feeding device 1 are controlled by thecontrol device 50, it is not essential to control the respective motors based on the rotation speed of thedrive motor 204. - The circumferential speed of the
lower roller 30b of the feedingrollers 30 and the moving speed of thebelt 41 of the transportingconveyor 40 can be appropriately changed in accordance with the length L of thesheet 60. For this reason, the paper feeding device 1 according to the present embodiment adopts a configuration in which themotor 31 and themotor 45 are respectively and independently disposed in thelower roller 30b and thebelt 41, and in which the operation amounts of themotors control device 50. That is, thelower roller 30b and thebelt 41 are driven by using an independent drive system so that the circumferential speed of thelower roller 30b and the belt moving speed of thebelt 41 are respectively and independently controlled by thecontrol device 50. - According to the above-described paper feeding device 1 in the present embodiment, the feeding
rollers 30 continuously feed thesheets 60 one by one starting from the top of thestacked sheets 60 onto the transportingconveyor 40. In a state where the posture of thesheets 60 is stabilized by overlapping multiple sheets with each other on the transportingconveyor 40, thesheets 60 can be supplied to thehopper 201 of thepaper feeding unit 200 of the printer. - That is, the sheet feeding means supplies the
sheets 60 one by one starting from the top of thestacked sheets 60. Accordingly, even when thesheet 60 stacked on the supply tray (sic) 10 is warped or tilted, the thickness becomes narrow compared to a case where themultiple sheets 60 are collectively pushed out from the supply tray (sic), as in the technique in the related art. Accordingly, thesheets 60 are less likely to interfere with the supply tray (sic) 10. Therefore, thesheets 60 can be stably supplied to the transportingconveyor 40 without thesheets 60 being twisted or folded. - An overlapping amount of the
sheets 60 can be set in accordance with the sheet length L by a servo motor driving thefeeding rollers 30 and the transportingconveyor 40. Accordingly, it is possible to maintain a substantially constant sheet overlapping amount. This stabilizes the posture of thesheets 60 falling into thehopper 201 of thepaper feeding unit 200 of cardboard printers or paperboard die cutting devices. Therefore, it is possible to prevent thesheets 60 from not being accommodated inside thehopper 201 after being caught on the side guide 202 (from not falling tidily). -
- 1
- PAPER FEEDING DEVICE
- 10
- PAPER FEEDING TRAY
- 11
- LIFTING DEVICE
- 20
- SHEET FEEDING MEANS
- 21a,
- 21b SUCTION PAD
- 22
- SUCTION PUMP
- 23a, 23b
- INTAKE PIPE
- 24a, 24b
- EXHAUST PIPE
- 25
- MOTOR
- 30
- FEEDING ROLLER
- 30a
- UPPER ROLLER
- 30b
- LOWER ROLLER
- 31
- MOTOR
- 40
- TRANSPORTING CONVEYOR
- 41
- BELT
- 42
- DRIVE ROLLER
- 43
- EXIT-SIDE ROLLER.
- 44
- BELT TIGHTENING ROLLER
- 45
- MOTOR
- 46
- GUIDE ROLLER
- 47
- BLOWER
- 48
- PRESSER ROLLER
- 50
- CONTROL DEVICE
- 60 to 64, 60B
- SHEET
- 200
- PAPER FEEDING UNIT OF PRINTER
- 201
- HOPPER
- 202
- SIDE GUIDE
- 203
- BACKSTOP
- 204
- MOTOR
Claims (7)
- A paper feeding device comprising:a paper feeding tray on which multiple sheets are stacked in a vertical direction;sheet feeding means for horizontally feeding one sheet located on the top of the multiple sheets stacked on the paper feeding tray; anda pair of feeding rollers that is disposed adjacent to the paper feeding tray, and that grasps a leading edge in a moving direction of the sheet fed by the sheet feeding means so as to deliver the sheet in a direction away from the paper feeding tray,wherein the feeding rollers are variable speed rollers which can increase and decrease circumferential speed while one sheet is delivered entirely from the leading edge in the moving direction to a trailing edge in the moving direction.
- The paper feeding device according to Claim 1,
wherein the feeding roller is the variable speed roller that maintains the circumferential speed which is the same as speed of the sheet fed by the sheet feeding means when the sheet feeding means grasps the sheet, that increases the speed from the circumferential speed which is the same as the speed of the sheet fed by the sheet feeding means after the sheet feeding means grasps the sheet, and that decreases the speed down to the feeding speed of the sheet until the sheet feeding means subsequently grasps the subsequent sheet. - The paper feeding device according to Claim 2, further comprising:a transporting conveyor that transports the sheet delivered from the feeding rollers,wherein transporting speed of the transporting conveyor is set to be slower than an average circumferential speed obtained from when one sheet is grasped by the feeing roller until the subsequent sheet is grasped by the feeding rollers.
- The paper feeding device according to any one of Claims 1 to 3,
wherein the sheet feeding means transports the sheet by fixing a rear portion of the sheet. - The paper feeding device according to any one of Claims 1 to 4,
wherein the transporting conveyor is a variable speed conveyor which can adjust the transporting speed in accordance with a length of the sheet. - A paper feeding method in which sheet feeding means takes out multiple stacked sheets one by one starting from a sheet located on the top and transfers the sheet to a pair of feeding rollers so as to supply one sheet to another device via the feeding rollers, the method comprising:a first step of causing circumferential speed when the feeding rollers grasp the sheet to coincide with speed of the sheet fed by the sheet feeding means;a second step of increasing the circumferential speed of the feeding rollers while the subsequent one sheet is delivered entirely from a leading edge to a trailing edge; anda third step of decreasing the speed so that the circumferential speed of the feeding rollers coincides with the speed of the sheet fed by the sheet feeding means until the feeding rollers subsequently grasp the subsequent sheet.
- The paper feeding method according to Claim 6,
wherein the sheet delivered from the feeding rollers is supplied to another device via a transporting conveyor, and
wherein multiple sheets partially overlap each other on the transporting conveyor by setting the transporting speed of the transporting conveyor to be slower than an average circumferential speed obtained from when one sheet is grasped by the feeing rollers until the subsequent sheet is grasped by the feeding rollers.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013207835A JP6378476B2 (en) | 2013-10-03 | 2013-10-03 | Paper feeding device and paper feeding method |
PCT/JP2014/075252 WO2015050021A1 (en) | 2013-10-03 | 2014-09-24 | Paper feeding device and paper feeding method |
Publications (3)
Publication Number | Publication Date |
---|---|
EP3012215A1 true EP3012215A1 (en) | 2016-04-27 |
EP3012215A4 EP3012215A4 (en) | 2016-07-20 |
EP3012215B1 EP3012215B1 (en) | 2017-11-22 |
Family
ID=52778612
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14851356.7A Active EP3012215B1 (en) | 2013-10-03 | 2014-09-24 | Paper feeding device and paper feeding method |
Country Status (6)
Country | Link |
---|---|
US (1) | US20160176666A1 (en) |
EP (1) | EP3012215B1 (en) |
JP (1) | JP6378476B2 (en) |
KR (1) | KR101709047B1 (en) |
CN (1) | CN105452134B (en) |
WO (1) | WO2015050021A1 (en) |
Cited By (2)
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DE102018201917B3 (en) | 2018-02-07 | 2019-07-11 | Koenig & Bauer Ag | Sheet-fed printing machine with at least one substrate feed device |
IT201800006896A1 (en) * | 2018-07-03 | 2020-01-03 | DEVICE FOR LOADING A FORMING MACHINE |
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CN106742250A (en) * | 2017-01-11 | 2017-05-31 | 珠海格力智能装备技术研究院有限公司 | Feeding mechanism and the sack filling machine with it |
CN106742252A (en) * | 2017-01-11 | 2017-05-31 | 珠海格力智能装备技术研究院有限公司 | Feeding mechanism and the sack filling machine with it |
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Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4810381Y1 (en) * | 1970-03-19 | 1973-03-19 | ||
JPS5214295Y2 (en) * | 1972-09-12 | 1977-03-31 | ||
CH650722A5 (en) * | 1983-02-21 | 1985-08-15 | Bobst Sa | MACHINE FOR MAKING FOLDING BOXES. |
JPS62150438U (en) * | 1986-03-17 | 1987-09-24 | ||
JPH0510359U (en) * | 1991-07-17 | 1993-02-09 | 株式会社小池製作所 | Feeder front alignment mechanism |
JP2777769B2 (en) * | 1993-04-05 | 1998-07-23 | 英機 福崎 | Single sheet stacking device |
JP3478629B2 (en) * | 1994-01-27 | 2003-12-15 | ハイデルベルガー ドルツクマシーネン アクチエンゲゼルシヤフト | Apparatus for conveying a sheet in a sheet feeding area of a sheet processing machine and speed control method of electric motor |
JPH08248371A (en) * | 1995-03-08 | 1996-09-27 | Hankyu Zoki Kogyo Kk | Sheet taking-out and supplying method, sheet taking-out and carrying part and sheet taking-out and supplying device |
JPH10203661A (en) * | 1997-01-17 | 1998-08-04 | Fuji Photo Film Co Ltd | Sheet member supply device |
JPH11106070A (en) | 1997-10-03 | 1999-04-20 | Sanwa Seisaku Kk | Paper feeding method and device |
US6279896B1 (en) * | 1999-10-12 | 2001-08-28 | Xerox Corporation | Systems and methods for dynamically setting air system pressures based on real time sheet acquisition time data |
JP2001277173A (en) * | 2000-04-03 | 2001-10-09 | Yamaden Kogyo:Kk | Sucking device for printed board, and charging machine |
JP2002154657A (en) * | 2000-11-21 | 2002-05-28 | Hisayasu Sugimoto | Paperboard feeder |
JP2003048643A (en) * | 2001-08-01 | 2003-02-21 | Hamada Printing Press Co Ltd | Paper feeder for paper sheet by sheet printer |
AU2003213906A1 (en) * | 2002-03-22 | 2003-10-08 | Magnum Manufacturing Limited | Method and apparatus for overlapping sheets in a sheet feeder and providing the overlapped sheets to a printing press |
JP2006036439A (en) * | 2004-07-26 | 2006-02-09 | Canon Inc | Sheet feeding device, image forming device, and image reader |
CN1944207A (en) * | 2006-10-25 | 2007-04-11 | 上海邮政科学研究院 | Thin sheet separating mechanism |
DE102007015341A1 (en) * | 2007-03-30 | 2008-10-02 | Koenig & Bauer Aktiengesellschaft | Sheet feeder of a sheet-fed printing machine |
US8608151B2 (en) * | 2009-03-16 | 2013-12-17 | Bobst Mex Sa | Loading station for plate elements and machine for processing such elements |
JP5480694B2 (en) * | 2010-03-29 | 2014-04-23 | 株式会社Isowa | Corrugated sheet box making machine |
-
2013
- 2013-10-03 JP JP2013207835A patent/JP6378476B2/en active Active
-
2014
- 2014-09-24 EP EP14851356.7A patent/EP3012215B1/en active Active
- 2014-09-24 WO PCT/JP2014/075252 patent/WO2015050021A1/en active Application Filing
- 2014-09-24 CN CN201480043204.1A patent/CN105452134B/en active Active
- 2014-09-24 US US14/909,083 patent/US20160176666A1/en not_active Abandoned
- 2014-09-24 KR KR1020167002441A patent/KR101709047B1/en active IP Right Grant
Non-Patent Citations (1)
Title |
---|
See references of WO2015050021A1 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102018201917B3 (en) | 2018-02-07 | 2019-07-11 | Koenig & Bauer Ag | Sheet-fed printing machine with at least one substrate feed device |
IT201800006896A1 (en) * | 2018-07-03 | 2020-01-03 | DEVICE FOR LOADING A FORMING MACHINE |
Also Published As
Publication number | Publication date |
---|---|
WO2015050021A1 (en) | 2015-04-09 |
JP2015071479A (en) | 2015-04-16 |
US20160176666A1 (en) | 2016-06-23 |
JP6378476B2 (en) | 2018-08-22 |
EP3012215B1 (en) | 2017-11-22 |
CN105452134A (en) | 2016-03-30 |
CN105452134B (en) | 2018-01-12 |
KR20160027069A (en) | 2016-03-09 |
KR101709047B1 (en) | 2017-02-21 |
EP3012215A4 (en) | 2016-07-20 |
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