JP3801954B2 - Paper bundling device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a paper bundle handling apparatus that separates a paper bundle such as a newspaper flyer or a copy sheet one by one and at the same time aligns the edges thereof.
[0002]
[Prior art]
In general, when stacking printed papers and storing them, the papers adhere to each other due to the effects of printing ink, needle holes, or static electricity. May cause. In addition, many paper bundles discharged from a collating machine or the like have uneven edges, and a great amount of time and labor may be consumed for aligning the edges.
[0003]
Therefore, in order to eliminate the adhesion and unevenness of a bundle of paper such as a newspaper flyer or a copy sheet, apparatuses as described in JP-A-9-165119 and JP-A-2001-80815 are generally widely used. .
[0004]
Such an apparatus generally includes a receiving frame for arranging the paper bundle, a vibrating means for vibrating the receiving frame, and a blowing means for blowing air toward the end surface of the paper bundle arranged in the receiving frame. The receiving frame is formed with two inclined surface portions that support the end surfaces orthogonal to each other in an inclined shape. According to this type of apparatus, a paper bundle such as copy paper is arranged in an inclined posture in the receiving frame with one corner facing downward, and in this state, the inclined surface of the receiving frame faces the end surface of the paper bundle. By oscillating the receiving frame while blowing air, it is possible to align the edges while separating the paper bundle one by one.
[0005]
[Problems to be solved by the invention]
However, according to the conventional apparatus as described above, when the paper bundle is charged by friction with each other, even if air is blown on the paper bundle or vibration is applied to the paper bundle, this cannot be produced well and it takes time. Even when air and vibration are continuously applied, the edges of the paper bundle may not be aligned.
[0006]
Further, when the paper bundle is placed in the receiving frame, there is a drawback that the uneven edges of the paper with low stiffness are bent while being crushed by its own weight.
[0007]
On the other hand, as a vibration means for vibrating the receiving frame, a motor (vibration motor) in which an eccentric ring is attached to the rotor shaft is generally used. However, the vibration direction of the receiving frame is important. When a paper bundle of a type in which a plurality of papers are sandwiched between folded papers is spread, a vibration is given so that the paper bundle moves from the center of the receiving frame toward the intersection of the inclined surfaces.
[0008]
However, since the vibration repeatedly acts in the direction from the center of the receiving frame to the intersection of the slope and the opposite direction, when the vibration from the intersection of the slope to the center of the receiving frame acts, There was a problem that the arranged paper bundle, especially several sheets on the back side, was pushed out of the receiving frame due to the frictional force with the back side and the influence of static electricity.
[0009]
For this reason, there is a case where a plastic plate is inserted between the rear portion of the receiving frame and the paper bundle in order to prevent the paper bundle from being pushed out, and a hard plate is used as the plastic plate in consideration of wear and deformation. For this reason, this may rattle due to the vibration of the receiving frame and generate a large noise. In addition, the plastic plate is charged by friction with the paper bundle, which sometimes promotes the protrusion of the paper bundle.
[0010]
The present invention has been made in view of the circumstances as described above, and its main purpose is to reliably solve this problem one by one even in a charged and unbalanced paper bundle and to align the edges well in a short time. There is in doing so.
[0011]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the present invention provides a receiving frame that forms two slope portions that support the end surfaces orthogonal to each other in an inclined shape and a back portion that faces the back surface of the paper bundle, and the paper from the slope portions. A blower means for blowing air toward the end face of the bundle, and a vibration means for applying vibration to the receiving frame , wherein the paper bundle is disposed with the corner facing downward in the receiving frame. In a paper stacking device,
The receiving frame is provided so as to be swingable about an axis perpendicular to the back surface portion, and the slope of the slope portion can be adjusted by the swing.
[0012]
Further , the slope portion corresponds to a rectangular paper bundle, one of which is a long first slope portion and the other is a second slope portion whose overall length is shorter than the first slope portion, The blower means has an air chamber formed on the back side of the slope portion and an air supply source for supplying air to the air chamber, and the slope portion has a slit shape in a direction crossing the slope portion. A plurality of fumaroles are formed, and the width of the fumaroles located at the uppermost part of the first slope and the lowermost part of the second slope is set wider than the other fumaroles. It is characterized by being made.
[0013]
In addition, the back surface portion is provided with a protrusion that contacts the paper surface of the paper bundle disposed in the receiving frame.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, application examples of the present invention will be described in detail with reference to the drawings. FIG. 1 is a schematic perspective view showing a preferred embodiment of a paper bundle handling apparatus according to the present invention. In FIG. 1, reference numeral 1 denotes a frame that forms the foundation of the apparatus. The frame 1 is provided with a caster for movement represented by a dotted line, and includes a vibration means, a blower means, and a charge removal means, which will be described later. A foot switch 2 for actuating is provided. Reference numeral 3 denotes a hollow prismatic support frame installed on the underframe 1, and a main power switch 4 and an operation panel 5 for receiving external power supply via the switch are provided on the upper side surface thereof. Reference numeral 6 denotes a power cord for connection to an external power source, and the driving power is distributed from the external power source to each of the means through the power cord 6.
[0015]
Here, the operation panel 5 includes a changeover switch 7A for switching the operation of each means to automatic / manual, a timer adjustment dial 7B for setting the operation time of each means at the time of automatic operation setting, and a blower means. An air volume adjustment dial 7C for adjusting the output (air volume), a static elimination switch 7D, and a hot air switch 7E are provided. When the change-over switch 7A is set to manual operation, the above-mentioned means are operated by the operation of the foot switch 2 for the pressing time.
[0016]
In addition, there are two setting modes for automatic operation, one of which is a circuit configuration in which each of the above means is operated within a set time, and the other is only the air blowing means without operating the vibration means etc. The circuit is configured to operate. In any mode, the static elimination means can operate, but this can be stopped as appropriate by the static elimination switch 7D.
[0017]
On the other hand, on the upper front surface of the support frame 3, a receiving frame 10 for arranging a bundle of paper P to be processed is provided. The receiving frame 10 includes a back surface portion 11 facing the upper front surface of the support frame 3, two slope portions 12A and 12B along the lower edge of the back surface portion, and two front surface portions 13A and 13B along the front side edges of the both slope portions. And a bundle of paper such as newspaper leaflets is arranged in an inclined posture with one corner down. In particular, a notch 14 is formed in the upper portion of the back surface portion 11 so as to make it easy to put in and out the paper bundle with respect to the receiving frame 10 so that the paper bundle P can be grasped by hand at the formation position. Here, the inclined surface portions 12A and 12B are orthogonal to each other and support the end surfaces of the paper bundle P which are orthogonal to each other, and in this state, the back surface portion 11 and the front surface portions 13A and 13B are respectively connected to the back surface and the front surface of the paper bundle P. It comes to oppose. Further, the presser plate 15 is sandwiched between the front surface portions 13A and 13B and the paper bundle P in order to prevent the paper bundle from collapsing.
[0018]
And according to such a whispering device, while the receiving frame 10 is vibrated by the vibration means, air is blown toward the end face of the paper bundle P arranged in the receiving frame 10 by the blowing means, and the air is heated as necessary. Further, the charged charges of the paper bundle P are removed by the charge eliminating means so that the edges can be well aligned while separating the paper bundle one by one.
[0019]
In FIG. 2, reference numeral 16 denotes a vibration motor as vibration means, and the rotor shaft 16 </ b> A has an eccentric ring 17 and is coupled to the back surface portion 11 of the receiving frame. In addition, the back surface portion 11 of the receiving frame and the support frame 3 are connected via an anti-vibration rubber 18 so that the vibration of the receiving frame 10 provided by the vibration motor 16 can be prevented from propagating to the support frame 3 side. On the other hand, the blower means is configured by connecting a casing 19 </ b> A housing the blower motor 19 and the receiving frame 10 with a blower pipe 20 using a blower motor 19 built in the lower portion of the support frame 3 as an air supply source. In this example, the blast tube 20 is composed of a rigid portion 20A made of a metal pipe and the like, and a flexible portion 20B having flexibility such as a rubber hose connected thereto, and the flexible portion 20B is pulled out from the support frame 3 to receive the receiving frame. 10 is connected. An air compressor may be used in place of the blower motor 19.
[0020]
As apparent from FIG. 3, the air chambers 22 covered with the partition walls 21 are formed on the back surfaces of the inclined surface portions 12 </ b> A and 12 </ b> B of the receiving frame, and the flexible portion 20 </ b> B of the blower pipe is connected to the air chamber 22. As apparent from FIG. 4, slit-shaped air inlets 23 </ b> A to 23 </ b> E extending in a direction crossing the inclined surfaces 12 </ b> A and 12 </ b> B of the receiving frame are formed, and the air sent from the blower motor 19 to the air chamber 22 is received. The air jets 23A to 23E are ejected toward the end face of the paper bundle.
[0021]
In particular, in this example, the lengths of the slope portions 12A and 12B are made different in correspondence with the rectangular paper bundle, one of which (12A) is a long first slope portion and the other (12B) is short. It is the second slope. And the opening width of the fumarole 23A, 23E located in the uppermost part of the slope part 12A and the lowermost part of the slope part 12B is set wider than the other fumaroles 23B, 23C, 23D. This corresponds to a paper bundle of a type in which a plurality of papers are sandwiched between two folded papers like a newspaper flyer.
[0022]
That is, in this type of paper bundle, the folded paper (referred to as origami) is placed on the inclined surface 12A with the folding line down, so that most of the air ejected from the inclined surface 12A passes through the outer surface of the origami. As a result, the air pressure between the respective paper surfaces inside the origami is relatively low, and the paper surfaces act in the direction in which the paper surfaces are in close contact with each other, resulting in poor paper alignment. For this reason, the air ejected from the air inlets 23C to 23E on the slope portion 12B side where the paper faces appear one by one is important, and more air needs to be supplied near the folds of the origami where it is difficult for air to enter. The opening width of the fumarole 23E is set wide. The formation position of the fumarole 23E is preferably about 5 cm above the virtual intersection of the slope portions 12A and 12B. Further, since the air from the inclined surface portion 12B attenuates when passing between the paper surfaces, the amount of air reaching the opposite end surface of the paper bundle is small. In order to compensate for this, the opening width of the fumarole 23A is also set wide.
[0023]
On the other hand, in FIG. 2, reference numeral 24 denotes an ion generator (DC corona discharge type in this example) as a static elimination means, and this ion generator 24 includes a device main body 24 </ b> A (power supply unit) built in the upper part of the support frame 3. , And a rod-shaped ion generating electrode 24B disposed in the receiving frame 10. The ion generation electrode 24B is made of a tungsten emitter or a ceramic emitter, which is embedded in the groove portion of the inclined surface portion 12B formed along the blow port 23D in this example as shown in FIG. According to the ion generator 24, a discharge voltage is applied to the ion generation electrode 24B by the device main body 24A, thereby causing the ion generation electrode 24B to generate corona discharge to generate positive and negative ions, and this is generated in the fumarole 23D. Released into the air jetted from. For this reason, even when a paper bundle made of printing paper or the like is charged by friction, the charged bundle can be removed and the paper bundle can be reliably separated.
[0024]
As is clear from FIGS. 3 and 4, a laterally long projection 11 </ b> A that contacts the paper surface of the paper bundle is provided on the inner surface of the back surface portion 11 in the receiving frame. FIG. 5 shows the cross section. As is apparent from this figure, the protrusion 11A has a triangular cross section and is continuously formed in a horizontal direction by a predetermined length so as to be orthogonal to the vibration direction (mainly the vertical direction) of the receiving frame 10. . Then, according to the projection 11A (protrusion), the ridge line t is brought into contact with the paper surface of the paper bundle to form a fixed gap between the back surface portion 11 and the paper bundle P, and the paper bundle P from the back surface portion 11 is formed. This reduces the propagation of vibrations acting on the paper sheet P and prevents the paper bundle P from being pushed upward on the back surface 11 side.
[0025]
Note that the protrusion 11A is not preferable if it is too large or too small. Depending on the shape of the receiving frame 10 and the amplitude acting on it, a width of about 15 mm and a height of about 3 mm are appropriate. Further, the projection 11A is preferably provided at the end of the back surface portion 11 and the upper portion facing the intersecting portion of the slope portions 12A and 12B with the center portion of the back surface portion 11 interposed therebetween. This is because the direction of vibration acting on the receiving frame 10 is generally the vertical direction connecting the central portion of the back surface portion 11 and the intersecting portion of the inclined surface portions 12A and 12B, and the paper bundle P is pushed out from the receiving frame 10 on the upper side. This is because a large amplitude occurs. In addition, since the receiving frame 10 is inclined toward the back surface portion 11 side, if the protrusion 11A is provided on the upper portion of the back surface portion 11, the paper bundle P stands in a nearly vertical state, and the contact force between the back surface portion 11 and the paper bundle P is increased. It becomes weaker and vibration propagation from the back surface portion 11 to the paper bundle P can be further reduced.
[0026]
Incidentally, although the protrusion 11A is formed integrally with the back surface part 11 by pressing or the like, the sheet metal on which the protrusion 11A is formed may be fixed to the back surface part 11 with a double-sided tape or the like.
[0027]
On the other hand, instead of the projection 11A as described above, an antistatic layer may be formed on the inner surface of the back surface portion 11 facing the paper bundle P in the receiving frame 10, and this also causes the back surface portion 11 and the paper bundle P due to static electricity. Can be prevented and the paper bundle P can be prevented from being pushed upward on the back surface portion 11 side. The antistatic layer can be easily formed by attaching a wooden board, fabric, paper, or the like to the inner surface of the back surface portion 11.
[0028]
Next, FIGS. 6 to 8 show a mounting portion of the receiving frame. In these drawings, reference numeral 25 denotes a swing plate that swings left and right along the front surface of the support frame 3, and the swing plate 25 is connected to the back surface portion 11 of the receiving frame through vibration-proof rubbers 18 attached to both sides thereof. Thus, an angle adjusting means that makes it possible to adjust the slopes of the inclined surfaces 12A and 12B of the receiving frame is configured. As shown in FIG. 6, seat plates 26 and 27 are provided at both ends of the vibration isolating rubber 18 to be attached to the back surface portion 11 of the receiving frame and the swing plate 25, and the seat plate 27 projects to the back side of the swing plate 25. A guide pin 28 is provided. Further, the support frame 3 is formed with an arc-shaped long hole 29 through which the guide pin 28 passes, and the swing plate 25 can swing left and right along the long hole 29.
[0029]
On the other hand, arc-shaped long holes 30 are formed on both the left and right sides of the swing plate 25, and screw shafts 31 that pass through the long holes 30 are fixed to the support frame 3. A handle 32 shown in FIGS. 7 and 8 is attached to the screw shaft 31 via the swing plate 25, and the swing plate 25 is attached to the support frame 3 by rotating the handle 32 around the screw shaft 31. It can be fastened or released. When the fastening of the swing plate 25 is released, as shown in FIG. 9, the swing plate 25 and the receiving frame 10 coupled thereto swing around an axis perpendicular to the back surface portion 11 (in the arrow direction in FIG. 9). As a result, the slopes of the slope portions 12A and 12B change. Here, the range in which the angle can be adjusted is set such that one inclined surface portion 12A is 10 to 30 degrees and the other inclined surface portion 12B is 60 to 80 degrees in this example. Note that the air duct 20 has a flexible portion 20B on the side connected to the receiving frame 10 as described above to allow the receiving frame 10 to swing.
[0030]
6 and 8, reference numeral 33 denotes an attachment frame for fixing the vibration motor 16, which is fixed to the back surface portion 11 of the receiving frame, and the vibration motor 16 and its attachment frame 33 are introduced into the support frame 3. An opening 34 is formed.
[0031]
Next, in FIG. 2, reference numeral 35 denotes an air heater for heating the air blown onto the paper bundle by the blowing means, and this is provided in the casing 19 </ b> A and provided on the exhaust side of the blower motor 19. In addition, when the space which arrange | positions the air heater 35 in casing 19A cannot be ensured, the air heater 35 can also be incorporated in the ventilation pipe 20 as an axial flow heater. Incidentally, the air heater 35 is configured to operate together with the vibration motor 16 and the blower motor 19, but the air heater 35 is deactivated by the hot air changeover switch 7E when it is not necessary when the outside air temperature is high. It can be.
[0032]
In FIG. 2, reference numeral 36 denotes a humidifier, and the humidifier 36 is connected to a blower pipe (rigid portion 20 </ b> A) via a pipe 37 to constitute a static elimination means. Then, the humidifier 36 sends the generated steam from the pipe 37 into the blower pipe 20 and mixes it with the air blown to the paper bundle, thereby giving appropriate moisture to the paper bundle and preventing its charging. Work. Since the ion generator 24 as a charge eliminating means is useful but expensive, the humidifier 36 is provided as a simple charge removing means for a user who does not need a significant effect on the charge removal. However, the structure provided with both the ion generator 24 and the humidifier 36 like FIG. 2 may be sufficient, and the structure provided only with one of them may be sufficient.
[0033]
Here, the operation of the burning device configured as described above will be described. First, in use, a paper bundle such as a newspaper flyer is set in the receiving frame 10 so that the short side thereof faces the inclined surface portion 12B. The slope portion 12B is adjusted as steep as possible. Thereby, the load which acts on the slope part 12B can be made small, and the bending of the uneven part by the dead weight of a paper bundle can be prevented.
[0034]
Thus, when the paper bundle is set in the receiving frame 10, the pressing plate 15 is placed between the front surface portions 13 </ b> A and 13 </ b> B of the receiving frame and the paper bundle P, and the paper bundle P is lightly pressed. The processing conditions are set on the operation panel 5 and the foot switch 2 is pressed. As a result, the blower motor 19 is activated, and air is sent from the blower motor 19 to the air chamber 22 through the blower pipe 20, and this air is blown out from the air blowing ports 23 </ b> A to 23 </ b> E and blown to the end face of the paper bundle P. Further, the ion generation electrode 24B causes corona discharge, and ions generated thereby are sprayed between the paper surfaces of the paper bundle P together with the air ejected from the air outlet 23D, and the charged charge of the paper bundle P is removed. Further, when the vibration motor 16 is activated, vibration is applied to the receiving frame 10 and propagates to the paper bundle P. The back surface portion 11 and the paper bundle are prevented from sticking by the protrusion 11A or the antistatic layer, and the propagation of vibration from the back surface portion 11 to the paper bundle P is reduced.
[0035]
As a result, the sheet bundle P in the receiving frame 10 is not pushed upward on the back surface portion 11 side, and functions of air (including heated air by the air heater 35 or humidified air by the humidifier 36), ions, and vibrations. As a result, the edges are aligned in a short time while being separated one by one. When the degree of unevenness of the paper bundle P and the degree of adhesion between the paper surfaces are smaller or larger than usual, it is preferable to perform the manual operation with the foot switch 2 for an appropriate time.
[0036]
The application example of the present invention has been described above. However, such a rolling device is not limited to the above example, and an electromagnetic vibrator may be used as the vibration means. Moreover, you may make it use a fan as a ventilation means and attach this directly to the back side of slope part 12A, 12B in a receiving frame. Further, various static eliminators other than the ion generator 24 and the humidifier 36 as described above can be used as the static eliminator.
[0037]
【The invention's effect】
As is apparent from the above description, according to the paper bundling device according to the present invention, the receiving frame is provided so as to be swingable about an axis perpendicular to the back surface portion thereof, and the gradient of the slope portion can be adjusted by the swinging. Therefore, by adjusting the angle, the pressure of the paper bundle acting on one of the slope portions can be relieved to prevent the uneven portion from being bent.
[0038]
Further, separate from that it comprises a blower hand stage blowing air to the end face of the vibrating means and the paper bundle applying vibration to the paper bundle, one by one, even for highly charged strong paper bundle, such as printing paper The edges can be aligned in a short time.
[0039]
Furthermore, because the protrusions that contact the paper surface of the paper bundle are formed on the inner surface of the back surface portion of the receiving frame, adhesion between the back surface portion and the paper bundle is prevented, and vibration propagation from the back surface portion to the paper bundle is reduced. Thus, it is possible to reliably prevent the paper bundle on the back side from being pushed upward.
[0040]
In addition, a plurality of air vents that form slits in the direction crossing the slope portion are formed in the slope portion, and the uppermost portion of the first slope portion and the lowermost portion of the second slope portion of each of the vent holes are formed. Since the opening width of the fumaroles is set wider than other fumaroles, even a bundle of paper with two or more sheets of paper sandwiched between two folds of paper, such as a newspaper flyer, In addition to being able to introduce air between the air holes from the lowermost air outlet, it is possible to compensate for the shortage of air ejected from the second inclined surface by the air outlet located at the uppermost portion of the first inclined surface.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a preferred embodiment of a paper stacking apparatus according to the present invention. FIG. 2 is a schematic side view showing an internal structure of the apparatus. FIG. 3 is a partially cutaway view of a receiving frame. FIG. 4 is a perspective view of the receiving frame. FIG. 5 is an enlarged sectional view taken along line XX in FIG. 3. FIG. 6 is a perspective exploded view showing the mounting portion of the receiving frame. [Fig. 8] Front view showing the mounting portion of the receiving frame [Fig. 9] Front view showing the swinging state of the receiving frame [Explanation of symbols]
1 underframe
2 Foot switch
DESCRIPTION OF SYMBOLS 3 Support frame 10 Receiving frame 11 Back surface part 11A Protrusion 12A, 12B Slope part 14 Notch 16 Vibration motor (vibration means)
19 Blower motor (supply source of air supply means)
20 Blower pipe 20A Rigid part 20B Flexible part 22 Air chamber 23A-23E Fumarole

Claims (3)

A receiving frame that forms two inclined surface portions that support the orthogonal end surfaces of the paper bundle in an inclined shape and a back surface portion that faces the back surface of the paper bundle,
A blowing means for blowing air from the inclined surface toward the end face of the paper bundle;
Vibration means for applying vibration to the receiving frame;
In a paper bundle handling apparatus having a configuration in which a paper bundle is disposed in the receiving frame with one corner facing downward ,
A paper bundling apparatus, wherein the receiving frame is provided so as to be swingable about an axis perpendicular to a back surface portion thereof, and the slope of the slope portion can be adjusted by the swinging . The slope portion corresponds to a rectangular paper bundle, one of which is a long first slope portion and the other is a second slope portion whose overall length is shorter than the first slope portion, Has an air chamber formed on the back side of the slope portion and an air supply source for supplying air to the air chamber, and a plurality of slits are formed in the slope portion in a direction crossing the slope portion. A row of fumaroles is formed, and the width of the fumaroles located at the uppermost part of the first slope part and the lowermost part of the second slope part is set wider than the other fumaroles. The paper bundling apparatus according to claim 1, wherein The paper bundle handling device according to claim 1, wherein a protrusion that contacts a paper surface of the paper bundle disposed in the receiving frame is provided on the back surface portion.

Images