JP3759350B2 - Feeding method in advertising collator - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a sheet feeding method of feeding stacked flyers from a sheet feeding table in a collating machine used for newspaper insert advertisement collation.
[0002]
[Prior art]
As a collating machine that gathers several types of flyers for newspaper inserts one by one, generally, the flyers on the paper feed trays that are provided in multiple stages above and below are sent out one by one sequentially by the paper feeder. Vertical type that stacks while being conveyed downward by a feeding device, folded in half at the bottom step, and sandwiched in the shape, discharged to the side from the paper discharge port, and accumulated by the paper receiving device The collating machine is used.
[0003]
As the sheet feeding device, as shown in FIG. 5, a sheet feeding roller 2 and an auxiliary roller 3 are arranged near the front end of each sheet feeding table 1 arranged in a plurality of stages at intervals in the vertical direction. Below the paper roller 2, a rubber separating plate (frame piece) 4 for preventing fly double feed (double feed) is provided, and conveyance rollers 5 and 5 are arranged on the fly feed side of the paper feed roller 2. A paper feeding device 6 is used. Then, the portion that passes through the conveying rollers 5 and 5 is guided by a guide 7 to a longitudinal feeding device portion (not shown).
[0004]
The paper feed table 1 includes a beam-like table portion 1a having both ends fixed to a frame of a collator (not shown), and an inclined plate portion 1b supported on the frame by pins 8 so as to be tiltable. The upper surface of 1a is covered with the cover 1c except for the hole where the scooping plate 4 is exposed, and the flyer a to be fed is placed in a stacked state on the inclined plate 1b and the cover 1c.
[0005]
The paper feed roller 2 and the auxiliary roller 3 are provided with rubber tires having serrated irregularities on the outer peripheral portion, and the paper feed roller 2 is a roller that is rotatably supported by a bracket 11 that is suspended and fixed to the upper table portion 1a. A one-way needle bearing 13 is attached to the drive shaft 12 so as to be rotatable only in one direction (arrow X direction). The auxiliary roller 3 is attached to a support shaft 15 that is rotatably attached to an arm 14 that is swingably supported by a roller drive shaft 12 by a one-way needle bearing 16 so that the auxiliary roller 3 is rotatable only in one direction (arrow X direction). There is a timing belt 19 (may be a gear mechanism) wound around pulleys 17 and 18 respectively keyed to the support shaft 15 and the roller drive shaft 12, and is rotated in conjunction with the paper feed roller 2 so that the uppermost layer is fed. This is for frictionally driving the flyer a.
[0006]
For example, as disclosed in Japanese Utility Model Publication No. 1-14586, the arm 14 includes a brake that generates a braking torque between the arm 14 and the roller driving shaft 12 and a rotating operation of the knob 20. A torque adjusting mechanism is provided to adjust the pressure, and the adjustment of the braking torque enables adjustment of the pressing force of the auxiliary roller 3 against the leaflet a, and hence the frictional driving force against the leaflet a.
[0007]
The stroking plate 4 is attached to the upper surface of a swing base 23 fixed to a swing shaft 22 rotatably supported by a bracket 21 fixed to the table portion 1a. By adjusting the elastic deformation amount of the rubber tire portion on the outer periphery of the scooping plate 4 and the paper feed roller 2 by rotating the knob by an unillustrated knob by the press contact force adjusting mechanism disclosed in JP-A-11-49393, A winding pressure (pressure contact force) P between the separating plate 4 and the sheet feeding roller 2 can be adjusted. The conveyance roller 5 is fixedly attached to a conveyance roller drive shaft 24 that is rotatably supported by a frame of a collating machine (not shown).
[0008]
Next, a conventional paper feeding method using the paper feeding device 6 having the above configuration will be described. As shown in FIG. 4A, the transport roller 5 is always rotated, and the paper feeding roller 2 is a roller drive shaft. 12 is driven to rotate in the arrow X direction for a predetermined time t ₀ (for example, 0.1 second). As a result, the paper feed roller 2 is rotationally driven in the direction of the arrow X, and in conjunction with this, the auxiliary roller 3 is also rotationally driven in the direction of the arrow X. The uppermost flyer a is in pressure contact with the surface of the upper layer duster a, and receives the frictional drive by the auxiliary roller 3 and the frictional drive by the paper feed roller 2. Driven by 5, 5 and sent in the direction of arrow Y.
[0009]
Further, the flyer on the lower side of the uppermost flyer a is stopped by the frictional force with the blower plate 4 at the position of the blower plate 4, whereby the flyers a are sent one by one. After the drive time t _{0 has} elapsed, the roller drive shaft 12 stops, but is supported by the one-way needle bearing 13 until the rear end of the flyer driven by the conveying roller 5 passes through the separating plate 4. The sheet feeding roller 2 is driven by a flyer and rotates following as shown in FIG.
[0010]
However, in general, flyers for insert advertisements vary widely in terms of paper quality, paper thickness, printed surface finish (slippery or sticky), and so on. It is easy to generate fly-outs, uneven fly-up tips, double-feeding (double feed), etc. In order to avoid this, according to the above-mentioned flyer characteristics, the rolling pressure P of the rolling plate 4 and the auxiliary roller 3 It is necessary to change and adjust the pressure contact force and further the inclination angle of the inclined plate portion 1b, etc., and this adjustment work is complicated and skillful and cannot be easily performed by an operator in a newspaper store. .
[0011]
In order to solve this problem, the following paper feeding method has been proposed in Japanese Patent Laid-Open No. 4-323163. That is, in the apparatus shown in FIG. 5, the paper detection sensor 26 is provided, the conveyance speed switching means (not shown) is provided, and the paper feed roller 2 and the conveyance roller 5 are driven at a low speed as shown in FIG. When the leading edge of the flyer is caught between the conveying rollers 5 and 5, each roller is stopped, and then the conveying roller 5 is driven at a high speed at the timing necessary for collating the flyer to feed out the flyer. No. 2 stops driving immediately after startup at a low speed, and rotates following according to a hand drawn at a high speed.
[0012]
However, in the paper feeding method described above, when the flyer 4 is pulled out at a high speed between the paper feed roller 2 and the separating plate 4 that are elastically deformed and pressed against each other at high speed, the flyer often breaks due to a large resistance. If the firing pressure P is lowered to prevent this, double feed occurs. In addition, since the flyer is pulled out at high speed against the large resistance, the wear of the conveying roller 5 progresses at an early stage. There are many problems such as feeding the next flyer by 2 and causing a paper jam in the transport roller section. Also, the device requires a transport speed switching means and a one-way clutch for absorbing the speed difference. It is a complicated mechanism.
[0013]
[Problems to be solved by the invention]
The present invention is intended to solve the above-mentioned conventional problems, and it is easy to adjust the squeezing pressure, so that there is little sheet leakage or double feeding, and a collated state in which the front ends of the flyers are aligned is obtained. Another object of the present invention is to provide a paper feeding method in an advertisement collating machine with few paper breaks and paper jams.
[0014]
[Means for Solving the Problems]
In order to achieve the above object, the paper feeding method in the advertisement collating machine according to the present invention is a vertical feeding device unit which is formed by laminating a sheet on a paper feeding table one by one by a paper feeding roller and a separating plate and passing through a conveying roller. In the paper feeding method in the advertisement collating machine to be fed to, the paper feed roller is activated during rotation of the transport roller and is driven to rotate at the same peripheral speed as the transport roller, and is separated by the paper feed roller. When the section is caught in the transport roller, the transport roller and the paper feed roller are stopped, and the paper feed roller and the transport roller are restarted at a timing required for collation so that both rollers are set to the peripheral speed. Rotate at the same peripheral speed, and then give a drive stop command to the paper feed roller before the time when the rear end of the flyer passes to perform a flyer separation operation until then. The rolling is continued, characterized in that as equipped to bite supply after the next leaflets in the longitudinal feeding apparatus of the flyers.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to an example shown in FIGS. In the figure, the same parts as those in FIG. 5 are denoted by the same reference numerals, and detailed description thereof is omitted. First, in FIG. 1, a collating machine 30 includes a sheet feeding table 1, a sheet feeding roller 2 and an auxiliary roller 3 provided near the tip of the sheet feeding table in a box-shaped casing 31 having both front and rear surfaces opened. Before the collating process in which a plurality of sets of two side by side rows and a plurality of sets of upper and lower rows of paper feeders 32 including the separating plate 4 and the conveying rollers 5 and 5 are arranged side by side. The leaflet a is fed downward through the conveying roller 5 while being sequentially stacked by the vertical feeding device 34 having the guide roller 33, and is sent out by the lowermost sheet feeding device 32 in the folding unit 35 provided at the lowermost level. Folding blade 36 for folding in half is folded by folding blade 36 that moves up and down, and a set of leaflets a from above is sandwiched between folding blades 37 by a folding roller 37. c is discharged by the carry-out conveyor 38, It is configured to integrated into pedestal 39 above.
[0016]
As shown in FIG. 2, the paper feeding device 32 includes a detector 41 that detects that a flyer is caught between the conveying rollers 5 and 5. This detector 41 positions the driving end portion 42a of the hinge lever 42 pressed by the tip end of the flyer at a position on the advance side by a predetermined amount with respect to the contact point of the transport rollers 5 and 5, and places it on the table 1a. It consists of a microswitch 43 attached. As shown in FIG. 3, the roller drive shaft 12 and the transport roller drive shaft 24, which are rotatably supported by the frame 44 of the casing 31, are made up of a feed roller by pulleys 45 and 46 and a timing belt 47 wound around the pulley. 2 and the conveying roller 5 are driven in an interlocking manner so as to rotate at the same peripheral speed, and the above-mentioned interlocking driving is released by an electromagnetic clutch 48 interposed between the pulley 45 and the roller driving shaft 12. Yes. In addition, 49 is an electromagnetic brake provided on one end side of the transport roller drive shaft 24, and 50 is an electromagnetic clutch provided on the other end side as well. A pulley 51 attached to the drive side of the electromagnetic clutch 50 and a driving machine (not shown) A timing belt 52 is wound around a pulley (not shown) attached to the end of the drive shaft of the guide roller 33 of the longitudinal feeding device 34 that is driven by rotation.
[0017]
Next, a paper feeding method by the apparatus having the above-described configuration will be described with reference to FIG. 4C. First, as a first driving process, the electromagnetic clutch 48 is connected to the paper feeding roller 2 while the conveying roller 5 is being rotated. And is driven to rotate at the same peripheral speed as the conveying roller 5. As a result, the flyer a on the uppermost layer on the sheet feed table 1 is fed in the direction of the arrow Y by the friction drive by the auxiliary roller 3 and the friction drive by the sheet feed roller 2 and the separating plate 4, and is sent out in the arrow Y direction. When it is caught between the conveying rollers 5 and 5, this is detected by the detector 41, and the electromagnetic clutch 50 is disengaged by the detection signal and the conveying roller drive shaft 24 is braked by the electromagnetic brake 49, thereby conveying the conveying roller. 5 and the feed roller 2 are stopped.
[0018]
Next, as the second driving step, the timing required for collation, that is, the distance from the biting stop position in the paper feeding device 32 of each stage to the folding position on the fly b of the folding device 35 through the vertical feeding device 34 The electromagnetic brake 49 is released and the electromagnetic clutch 50 is connected at a timing at which a time difference is provided for each stage so that the tips of the flyers are aligned based on the required conveyance time calculated from the conveyance speed during that time. Then, the conveying roller 5 is restarted to rotationally drive these rollers at the same peripheral speed as in the first driving step. As a result, the flyer a with its leading end engaged with the transport rollers 5 and 5 is driven by the paper feed roller 2 and the transport roller 5 and sent out in the arrow Y direction.
[0019]
And, from the above starting time, before the time when the rear end of the flyer passes through the paper feed roller 2 (between the separating plate 4) (≈ time when the flyer width is divided by the conveying speed), The electromagnetic clutch 48 is disengaged and the driving of the roller drive shaft 12 is stopped. Until this stop command is received, the paper feed roller 2 performs a separating operation along with the separating plate 4, and after the roller drive shaft 12 is stopped, the paper feed roller 2 follows until the flyer is completely pulled out by the one-way needle bearing 13. Rotate. The conveyance roller 5 continues to rotate, and supplies the separated fragments to the vertical feeding device 34, and thereafter, in a rotating state in preparation for the next flyer bite, the feeding of one flyer a (1 Cycle). By repeating the above steps, the flyers on the paper feed tray 1 are supplied one by one from the top layer one by one to the vertical feed device 34 and used for collation.
[0020]
Thus, first after the first driving step, the detector 41 temporarily stops the state where the tip of the flyer is engaged with the transport roller 5, so that it depends on the size and quality of the flyer, the paper thickness, the surface finish state, etc. Regardless of the separation (spreading) time of the separation plate 4, the tip of the flyer is aligned in the above-mentioned biting state, and then sent out in the second driving process. 4 (a) may be larger than the conventional method, and the adjustment of the firing pressure P can be easily performed. Under this adjustment, the flyers can be surely fed one by one without causing delay in feeding or double feeding. It is sent out and arrives at the collating part (35 parts of folding devices) with the tip part aligned.
[0021]
In addition, the rotation speed of the paper feed roller 2 and the transport roller 5 in the first driving process (and hence the second driving process) can be made larger (unit) than the low speed at the time of rolling in the conventional method shown in FIG. Since the rotational speed is an intermediate value between the low speed and the high speed of the conventional method under the same condition of the number of collating processes per time), the variation in the bite detection time by the detector 41 shown in FIG. The variation time tolerance T of the first driving process shown in FIG. 4 can be made larger than that of the conventional method, and the adjustment tolerance of the firing pressure P of the firing plate 4 is wider than that of the conventional method of FIG. The adjustment of the firing pressure P is easier.
[0022]
Next, in the second driving process, the paper feed roller 2 is driven and frictionally driven at the same peripheral speed as in the first driving process, so that the flyer can be separated and sent out reliably, and even after the driving of the paper feed roller 2 is stopped. Since the conveying speed by the conveying roller 5 may be lower than that in the conventional method shown in FIG. 4B, the tearing of the paper (flyer) accompanying the high-speed drawing as in this conventional method does not occur, and the conveying There is little wear of the roller 5, and no paper leakage or paper jam occurs due to the rapid progress of this wear. Further, since the speed switching means and the one-way clutch for absorbing the speed difference as in the conventional method are unnecessary, the apparatus can be simplified.
[0023]
The present invention is not limited to the above example. For example, other types of detectors 41 may be used as the detector 41, the adjusting mechanism for the counter pressure of the counter plate 4, and the press contact mechanism for the auxiliary roller 3. Etc. may be of a format other than the above examples.
[0024]
【The invention's effect】
As described above, according to the present invention, the paper feed roller and the transport roller are temporarily stopped in a state where the front end portion of the flyer is engaged with the transport roller. It reaches the joint portion with the tip portions aligned, and the collapsing state and unevenness of the tip portions are eliminated, and the adjustment of the rolling pressure is facilitated. Also, the feeding of the flyer by the restart after the temporary stop is performed at the same peripheral speed as before the stop, and the paper feed roller and the transport roller jointly operate until a drive stop command is given to the paper feed roller. The separation and feeding of the flyers are performed reliably, the paper is not torn, the paper is not fed and the paper is not jammed due to the high speed drawing only by the transport roller, the transport roller is less worn, and the apparatus is simple.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of an advertisement collating machine showing an example of an embodiment of the present invention.
2 is a longitudinal sectional view (a sectional view taken along line AA in FIG. 3) of the sheet feeding device in FIG. 1;
3 is a plan view of a main part of the paper feeding device in FIG. 1. FIG.
4 is an operation diagram of a sheet feeding roller and a conveyance roller showing a sheet feeding method by the sheet feeding device in FIG. 1 and a conventional sheet feeding device.
FIG. 5 is a view corresponding to FIG. 2 showing a conventional paper feeder.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Paper feed stand, 2 ... Paper feed roller, 4 ... Separation board, 5 ... Conveyance roller, 30 ... Collating machine, 32 ... Paper feed device, 33 ... Guide roller, 34 ... Vertical feed device, 35 ... Folding device, 41 ... Detector, 48 ... Electromagnetic clutch, 49 ... Electromagnetic brake, 50 ... Electromagnetic clutch.

Claims (1)

In the paper feeding method in the advertisement collating machine, in which the stacked layers are separated one by one by the paper feeding roller and the separating plate and fed to the vertical feeding device section through the transporting roller, while the transporting roller is rotating, The paper feed roller is activated to rotate at the same peripheral speed as the transport roller, and when the leading edge separated by the paper feed roller is engaged with the transport roller, the transport roller and the paper feed roller are stopped. The paper feeding roller and the conveying roller are restarted at a timing required for collation, and both rollers are rotated at the same peripheral speed as the peripheral speed. A drive stop command is given prior to the passing time point, and the separating operation is performed until that time, and the conveying roller continues to rotate and after the feeding to the vertical feed unit, the next fly biting is performed. Paper in the advertisement collating machine according to claim was that like equipped on.

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