JPH0826515A - Paper sheet delivery device - Google Patents

Abstract

PURPOSE:To realize one-sheet delivery of paper sheet by a simple constitution in the case of supplying the paper sheet to a pasting position relating to a band-shaped sheet material printing a photograph or the like. CONSTITUTION:A paper sheet 14 is piled together in a vertical direction along a direction of supplying a band-shaped sheet material 10. A paper sheet delivery part is formed in a lower part of a paper sheet guide 35 straightening each paper sheet 14, and a delivery roller 39 is arranged in the downward of this delivery part. A sloped guide 37 is provided in a position opposed to each other to the paper sheet delivery part, and this sloped guide 37 is provided with a circular arc surface shifting an opposite delivery side of each paper sheet 14 mutually in a surface direction. A lead end of the paper sheet 14 is successively set to a position displaced to an opposite delivery side corresponding to this end, so as to deliver only the paper sheet 14 in the lowermost position by contact with the delivery roller 39. A dummy sheet paper inserting means 50 is provided below the sloped guide 37, to insert a dummy paper sheet preferentially delivered when an inferior sheet part is detected by a sensor 31.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet feeding device, and more specifically, while continuously supplying a strip-shaped sheet material, a single-cut sheet attached to the strip-shaped sheet material is attached one by one. The present invention relates to a sheet feeding device for feeding to a position.

[0002]

2. Description of the Related Art Conventionally, there is known a postcard in which a sheet such as a card is attached to a sheet material on which a photograph or the like is printed. For the attachment of the postcards, a method is employed in which a strip-shaped sheet material is wound around a plurality of rollers so that it can be fed in a fixed direction, and the paper sheets are fed out one by one to a preset attachment position. .

As a device for feeding the above-mentioned paper sheet to a position where it is attached to a strip-shaped sheet material, a vacuum is provided which stacks a large number of paper sheets in the vertical direction and is capable of advancing and retracting with respect to the uppermost paper sheet. A device is known in which a grid is provided, and the paper sheet is sucked by the vacuum grid and can be fed out to a pasting position (for example, JP-A-5-201).
604). In addition, as another configuration, it is known that when the stacked paper sheets are fed out, a constant vibration is applied in a direction orthogonal to the plane direction of the paper sheets to feed the sheets one by one. (For example, Japanese Patent Laid-Open No. 5-131
782).

[0004]

However, in the case of the sheet feeding device adopting the vacuum grid,
Since the uppermost sheet is adsorbed and sequentially fed out, it is impossible to replenish the sheet while the apparatus is operating. When replenishing such a sheet, the operation of the entire apparatus has to be temporarily stopped, resulting in a disadvantage of lowering production efficiency. Further, according to the suction method, the suction force may be applied to the second sheet through the invisible fine holes of the sheet, which is one of the major causes of double feeding. Therefore, a certain limitation is imposed on the paper quality of the paper used in the adsorption method, and it has been difficult to apply it to a relatively coarse fiber such as recycled paper which has become popular recently. . In addition, a vacuum pump and cylinder are additionally required due to the special structure of providing a vacuum grid exclusively for feeding, and there is a limit to the simplification of the structure, and fine adjustment of the suction force according to the paper quality, etc. However, the workability is poor and the workability is poor.

Further, in the apparatus disclosed in the above-mentioned Japanese Patent Laid-Open No. 5-131782, since the structure for applying the vibration in the direction orthogonal to the plane direction of the paper sheet is adopted, the single-sheet feeding accuracy is suction. It is considered that the cost is higher than that of the method, but in such a configuration, it is necessary to separately provide a vibration applying unit, and it is hard to say that single-sheet feeding can be achieved with a simple configuration. Moreover, according to this configuration, since the lowermost paper sheet is sequentially fed out, a large number of stacked sheet total loads are applied to the lowermost paper sheet, and therefore, the effect of vibration imparting is exerted. To secure a certain degree of accuracy, too many paper sheets cannot be stacked, so that the number of paper sheet replenishments becomes unnecessarily large. Therefore, the stacking direction of the sheets needs to be an inclined direction so as not to give a large addition to the lowermost sheet, and the range of selection of the device layout is inevitably narrowed.

Further, when a defective portion is found in the strip-shaped sheet material, it is required to avoid sticking a sheet with the sheet material having the defective portion, and a mechanical structure for achieving this is conventionally required. It is not used in the structure, and as a result, there are many problems that defects of the final product occur.

[0007]

SUMMARY OF THE INVENTION The present invention has been devised in order to improve the above-mentioned conventional inconveniences, and an object thereof is to make it possible to feed out paper sheets one by one with a very simple structure, and It is an object of the present invention to provide a sheet feeding device capable of realizing continuous sticking while avoiding unnecessary sheet feeding when a defective portion of a sheet material is detected and improving production efficiency.

[0008]

In order to achieve the above-mentioned object, a sheet feeding device according to the present invention has a large number of sheets arranged in the vicinity of a continuously fed strip-shaped sheet material.
A paper sheet guide that is a device that can feed out the paper sheets one by one at a predetermined sticking position with the band-shaped sheet material, and stacks the paper sheets in the up-down direction, and has a paper sheet feeding section provided at the bottom. And a slant guide that shifts the anti-feeding side of the paper sheet one by one in the plane direction at a position relative to the paper feeding portion to project the lowest paper sheet lead end toward the paper feeding side, and the lowest paper sheet. A configuration is employed in which a feeding roller that applies a frictional force in the surface direction to the leaves to feed the leaves one by one to the attaching position is adopted.

In the sheet feeding device, dummy sheet inserting means is provided below the inclined guide, and the dummy sheet inserting means includes a guide plate extending toward the feeding portion and an upper portion of the guide plate. A movable swing plate provided at a position is provided, and a configuration is preferably adopted in which a dummy paper sheet is inserted from a gap between these plates and the dummy paper sheet is preferentially drawn out. .

Further, in the structure provided with the dummy paper sheet inserting means, a sensor for detecting a defective sheet portion is provided along the moving direction of the strip-shaped sheet material, and when the sensor outputs a defect detection signal, the swing is detected. A configuration is adopted in which the plate is provided so as to be movable in the direction of pushing up the lowest paper sheet.

[0011]

The strip-shaped sheet material on which a photograph or the like is printed is fed from the original state through a group of rollers, and at the position along the feeding direction of the strip-shaped sheet material, a large number of paper sheets are vertically arranged. Stacked paper sheet guides are provided. The tilt guide provided at the position facing the feeding part of the paper sheet guide,
This causes an action of shifting the lower paper sheet group one by one in the plane direction, whereby the lowermost paper sheet lead end is projected to the outermost side from the feeding portion. In this state, the feeding roller comes into contact with the lowermost paper sheet, and the rotational force of the feeding roller gives a frictional force in the surface direction to the lowermost paper sheet. It is possible to feed the paper sheets.

In the construction in which the dummy paper sheet inserting means is provided below the inclined guide, the dummy paper sheet can be inserted between the guide plate and the swing plate, and by inserting the dummy paper sheet, It can be supplied with priority over the lowest paper sheet. At this time, in a configuration in which a sensor for detecting a defective sheet portion of the strip-shaped sheet material is provided together, the swing plate is moved corresponding to the output of the sensor to apply a pushing force to the lowermost sheet, and the feeding roller is provided. With the frictional abutting force due to being released, the insertion and preferential delivery of the dummy paper sheets are reliably ensured.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the sheet feeding device according to the present invention will be described below with reference to the drawings.

FIG. 1 shows an overall configuration diagram in which the paper feeding device according to the present embodiment is applied to a postcard manufacturing system, and FIG. 2 shows a schematic enlarged side view of the paper feeding device. There is. In these figures, the postcard manufacturing system includes a supply unit 1 for supplying a strip-shaped sheet material 10 having a photograph or the like printed on one surface through a plurality of roller groups.
1, a coating device 12 for coating an adhesive on the other surface of the strip-shaped sheet material 10, a timing control provided on the rear side of the coating device 12 and for sticking a sheet 14 to the strip-shaped sheet material 10. Means 15, a sheet feeding device 17 for feeding the paper sheets 14 to the belt-shaped sheet material 10 one by one, a sticking device 18 for sticking the fed paper sheets 14 and the belt-shaped sheet material 10 to each other, and this sticking device The sheet-shaped sheet material 10 and the paper sheet 14 bonded together via 18 are provided with a cutter 19 that cuts into postcards 20 by cutting them into postcards, and a stacker 22 that can sequentially accommodate the postcards 20. There is.

The supply unit 11 includes a plurality of rollers 11A,
It is composed of a dancer roller 11B or the like that supplies the band-shaped sheet material 10 necessary for attaching the paper sheet 14. Further, the coating device 12 has a bat 25 filled with a certain amount of hot-melt type adhesive 24 therein, and is rotatably supported in the bat 25, and the outer peripheral surface is partially immersed in the adhesive 24. The coating roller 27 and a pair of pressing rollers 29 for bringing the outer surface of the coating roller 27 into contact with the other surface of the strip-shaped sheet material 10.

The timing control means 15 detects holes or slits (not shown) formed corresponding to each photographic printing area of the strip-shaped sheet material 10, and outputs the detection signal to the pasting device 18 to determine the pasting position. The timing can be controlled. This timing control means 15
In this embodiment, the light transmission type sensor is used. Further, in front of the timing control means 15, a sensor 31 for detecting a defective sheet portion is arranged. The sensor 31 detects the connection area when a separate strip-shaped sheet material is pasted and connected to the end of the strip-shaped sheet material 10 and a defective portion of the printing itself as a defective sheet portion, and the paper sheet 14 is attached to this portion. The output signal of the sensor is a dummy sheet inserting means 50 which will be described later.
To be given to.

As shown in FIGS. 2 and 3, the paper feeding device 17 stacks a large number of the paper sheets 14 in the vertical direction and has a paper feeding portion 34 at the bottom thereof. The leaf guide 35, a position opposed to the paper sheet guide 35, that is, an inclined guide 37 having a substantially arc-shaped curved surface that is stacked by stacking the paper sheet 14 on the opposite feeding side one by one in the plane direction, and the paper sheet. The feeding roller 39 that is in contact with the lower surface side of the lowermost sheet 14 below the feeding unit 34
And a fixed roller 42 which is provided above the feeding roller 39 and which aligns the lead ends of the respective paper sheets 14 in the feeding portion 34 region in the inclination direction, and one sheet between the lower outer peripheral surface of the fixed roller 42. The space adjuster 44 that realizes feeding, and the feeding roller 3
A pair of drive rollers 45, 45 for transferring the paper sheet 14 fed out by the 9 to the pasting device 18 side, and a push-up roller 46 for supporting the paper sheet 14 transferred via these drive rollers 45, 45 from the lower surface side. , And a dummy paper sheet insertion means 50 provided below the tilt guide 37. The contact pressure between the lowermost paper sheet 14 and the feeding roller 39 is given not only by the weight of the stacked sheets 14 but also by the weight 51 placed on the top surface of the uppermost sheet 14. It is designed to be used.

As shown in FIGS. 3 and 4, the dummy paper sheet inserting means 50 has a guide plate 54 fixed via a bracket 52, and a swing plate 55 arranged on the upper surface side of the guide plate 54. It is composed of and. The guide plate 54 is tilted and supported so that the front end side of the guide plate 54 is at a high position toward the paper feeding portion 34. Although not shown in the drawing, the planar shape is formed in a substantially U shape, and the dummy paper 57 (see FIG. 4) is provided along the upper surface thereof in a size capable of being guided. Further, the swing plate 55 is connected to a fulcrum 58 at a substantially central portion thereof, and is provided on both left and right sides so as to be movable in forward and backward turning directions. In the swing plate 55, the front end portion 55A on the side of the paper feeding portion 34 is always in contact with the upper surface of the guide plate 54, and is maintained in a non-contact state with the lowermost paper sheet 14. On the other hand, the swing plate 55 is provided such that the leading end 55A is movable upward based on the output signal of the sensor 31 for detecting the defective sheet portion described above, and in this state, the lowermost sheet 14 is moved upward. The contact between the paper sheet 14 and the feeding roller 39 is released by being pushed up.

As shown in FIGS. 2 and 3, the pasting device 18 has a stopper 60 that contacts the lead end of the paper sheet 14 to regulate the pasting position, and the paper sheet 14 whose movement is regulated by the stopper 60. And a sticking roller 64 for supporting the strip-shaped sheet material 10 at a position below the vacuum grid 62.
And a striking roller 66 that can move toward the sticking roller 64 at a predetermined timing.
The movement timing of the tapping roller 66 is controlled by the timing control means 15 described above.
Specifically, the paper adsorbed by the vacuum grid 62 when each print area of the strip-shaped sheet material 10 reaches the pasting position due to the correlation with the supply speed of the strip-shaped sheet material 10 set in advance. The hitting roller 66 moves toward the sticking roller 64 so as to hit the leaf 14 from above. An electrostatic brush 67 that is in contact with the lower surface of the paper sheet 14 is arranged in front of the pasting device 18, and
The static electricity generated in the is removed.

The paper sheet 14 pasted on the belt-shaped sheet material 10 by the pasting device 18 has a plurality of take-up roller groups 6
8A and the dancer roller 68B are sequentially taken out toward the next step, and both ends along the longitudinal direction are trimmed by a pair of slitters 70 arranged on the front side of the cutter 19.

As shown in FIG. 1, the cutter 19 has two points along the longitudinal direction of the strip-shaped sheet material 10,
That is, the paper sheet 14 is provided with a pair of blades 19A, 19A provided at a relative width capable of cutting both edges of the paper sheet 14 in a postcard size, and is vertically movable via a crank mechanism (not shown). Further, the conveyors 73, 73 are arranged between the blades 19A, 19A, and the postcard 20 that is cut and becomes a postcard size is sent to the stacker 22 by the conveyors 73, 73 and the discharge rollers 74, 74. It has become so.

Next, the operation of the above-mentioned sheet feeding device 17 will be described.

As an initial work, the paper sheet 14 is moved to the paper sheet guide 3
5 are stacked on top of each other, and the weight 51 is placed on the upper surface side of the uppermost sheet 14 and the space between the space adjuster 44 and the fixed roller 42 is changed according to the sheet thickness of the sheet 14. Set so that one sheet can be fed. When the entire system is operated in this state, the strip-shaped sheet material 10 can be continuously supplied, while the feeding roller 39 gives a frictional contact force in the surface direction to the lowermost paper sheet 14 and the paper sheet 14 concerned. Can be paid out. At this time, the non-feeding side of each paper sheet 14 in the area of the paper sheet feeding portion 34 is provided with the tilt guide 37.
Since the sheets are stacked in a manner along the circular arc surface, the lead ends of the respective paper sheets 14 are shifted in the surface direction toward the anti-feeding side, and the lowest paper sheet 14 is set at the most protruding position. Therefore, the sheet 14 and the sheets next to the sheet 14 at the lowermost position can be frictionally engaged with the outer peripheral surface of the fixed roller 42 to some extent, which assists the feeding of only the sheet 14 at the lowermost position.

The paper sheet 14 fed out is the pasting device 1 described above.
After being affixed to the belt-shaped sheet material 10 at a preset timing in 8, the postcard 20 is completed by receiving the trimming and postcard-sized cutting operations described above.

If a defective sheet portion is present in a portion of the strip-shaped sheet material 10 that is continuously supplied, the sensor 31 will detect it. This detection signal is
The swing plate 55 which is provided to the dummy paper sheet inserting means 50 and constitutes the dummy paper sheet inserting means 50 has the tip portion 5
5A moves upward, and pushes up the lowermost sheet 14 to release the contact with the feeding roller 39, as shown in FIG. At this time, if the dummy paper sheet 57 is inserted between the guide plate 54 and the swing plate 55, the dummy paper sheet 57 comes into contact with the outer peripheral surface of the delivery roller 39 and is delivered. Dummy paper sheet 5 that was fed out
7 is sucked and held by the vacuum grid 62 for a certain time at the sticking position, and when the defective sheet portion reaches the sticking position, it is beaten down by the hitting roller 66 and stuck, and after receiving the aforementioned cutting action, the defective product. Excluded as.

Therefore, according to such an embodiment, the slant guide 37 for shifting the anti-feeding side of the paper sheet 14 in the plane direction is provided, and the lead end of each paper sheet 14 is sequentially retracted to the anti-feeding side by the tilt guide 37. Therefore, there is an effect that the frictional force by the feeding roller 39 works effectively only on the lowermost sheet 14 and the single sheet 14 can be reliably fed out. Further, since the suction means for realizing the feeding of one sheet is not adopted, it is possible to use the paper sheet which is not suitable for the suction as a target, and promote the utilization of recycled paper or the like having a relatively surface roughness. be able to. Moreover, since the tilt guide 37 itself has an extremely simple structure, there is no fear of complicating the structure of the entire apparatus, and the manufacturing cost can be provided with almost no burden.

Further, in the above-described embodiment, since the paper sheets 14 are stacked in the vertical direction and the paper sheets 14 are sequentially fed out from the lowest paper sheet 14, even when the remaining amount of the paper sheets 14 decreases. Since paper sheets can be added from above, continuous feeding operation can be achieved without stopping the operation of the system, and compared with the conventional device that uses the vacuum method that feeds from the topmost paper sheet. Production efficiency can be significantly improved, and further simplification of the structure can be achieved.

Further, since no means for imparting vibration or the like is used as a means for realizing the feeding of one sheet, the structure can be simplified from this point as well, and in comparison with the configuration using the vibration imparting means. It is also possible to reduce the manufacturing cost of the.

Further, in this embodiment, the dummy paper sheet inserting means 50 is provided, and when the sensor 31 associated therewith detects the defective portion of the strip-shaped sheet material 10, the feeding of the lowermost paper sheet 14 is avoided, so The effect of preventing waste of the paper sheet 14 that can be used as a product is also achieved. According to this, even if another strip-shaped sheet material is connected to the end of the strip-shaped sheet material 10 in the original state, continuous supply is possible without stopping the system, which also contributes to improvement in production efficiency. Become.

In the above embodiment, the example in which the fixed roller 42 is arranged in the area of the sheet feeding section 34 is adopted and explained, but in the case where the lower portion of the sheet guide 35 is formed into a curved shape, The fixed roller 42 can be omitted.

The curvature of the arcuate surface of the inclined guide 37 can be arbitrarily selected according to the size and thickness of the paper sheet 14 to be applied. It may be a mount for printed matter.

[0032]

The present invention is constructed as described above, and
Since it works, this makes it possible to feed out the sheets one by one with an extremely simple structure, and to continuously attach the sheets while avoiding unnecessary feeding out when a defective portion of the strip-shaped sheet material is detected. It is possible to provide a sheet feeding device that can achieve the above-described advantages and that can also improve the production efficiency, which has an unprecedented excellent effect.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram of an embodiment in which a sheet feeding device according to the present invention is applied to a postcard manufacturing system.

FIG. 2 is a schematic side view showing an enlarged main part of the embodiment.

FIG. 3 is an enlarged side view showing a detailed structure of a main part of the embodiment.

FIG. 4 is an enlarged side view of the dummy paper sheet inserting means.

[Explanation of symbols]

 10 Belt-shaped sheet material 14 Paper sheet 17 Paper sheet feeding device 31 Sensor 34 Paper sheet feeding portion 35 Paper sheet guide 37 Inclination guide 39 Feeding roller 50 Dummy paper sheet inserting means 54 Guide plate 55 Swing plate 57 Dummy paper sheet

Claims (3)

[Claims] 1. A device capable of arranging a large number of paper sheets in the vicinity of a continuously-supplied strip-shaped sheet material and feeding the sheets one by one to a predetermined attachment position with the strip-shaped sheet material. And stacking the paper sheets in the up-down direction, and a paper sheet guide provided with a paper sheet feeding section at the bottom, and the paper sheet feeding section on the opposite side of the paper sheet at the relative position of the paper sheet feeding section. An inclined guide that shifts in the surface direction to project the lowermost leaf lead end toward the feeding side, and feeds the lowermost leaf to the pasting position one by one by applying a frictional force in the surface direction to the lowermost leaf. A sheet feeding device, which is provided with a feeding roller that enables it. 2. A dummy paper sheet inserting means is provided below the inclined guide, and the dummy paper sheet inserting means is provided at a guide plate extending toward the feeding portion and at a position above the guide plate. 2. The paper feeding device according to claim 1, further comprising a movable swing plate, wherein dummy paper sheets are inserted between the plates so as to preferentially feed the dummy paper sheets. 3. A sensor for detecting a defective sheet portion is provided along the moving direction of the strip-shaped sheet material, and when the sensor outputs a defective detection signal, the swing plate moves in a direction to push up the lowermost sheet. The sheet feeding device according to claim 2, wherein the sheet feeding device is provided so as to be capable.