JPH1179443A - Sheet feeding device for sheet-shaped material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To feed a sheet-shaped material stacked on a sheet feed table in an appropriate tilted attitude to a working unit on a downstream side. SOLUTION: A sheet feeding device 11 is provided with a sheet feed table 24 capable of stacking a plurality of corrugated fiberboard sheets and a kicker 25 to force-feed the corrugated fiberboard sheets stacked on the table 24 one by one from its lowermost layer to the downstream side. Also the kicker 25 is disposed on sliders 31 and 32 which are moved in and out in the sheet feeding longitudinal direction by an operating mechanism 26, and force-feeds, in forward movement, the corrugated fiberboard sheets to feed rollers 27 and 27 disposed on the downstream side. In addition, the kicker 25 is re-positioned in a tilted attitude and a reference attitude by an adjusting mechanism disposed on sliders 31 and 32.

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 for feeding and feeding a sheet in a posture inclined at a required angle to various processing units disposed downstream. Things.

[0002]

2. Description of the Related Art A rotary die cutter is preferably used as a means for punching a sheet of corrugated cardboard (sheet-like material) into a required shape and forming a blank or the like as a base material of a box that can be assembled and disassembled. Have been. This rotary die cutter is provided with a die cylinder in which a die in which a punching blade of a required shape is planted on a curved board is detachably wound, and a die cylinder is disposed with its axis parallel to the die cylinder. And an anvil cylinder wound with an anvil made of a urethane material that receives the anvil in a biting state. The two cylinders are driven in mutually opposite directions by an external drive source commonly connected via a gear train. On the upstream side of both cylinders, there is provided a sheet feeding device including a sheet feeding table on which a large number of cardboard sheets are stacked and placed, and a kicker that moves on the table back and forth in the sheet feeding direction. At this timing, the kicker moves forward and sends out the cardboard sheets one by one from the lowermost layer toward the downstream side. Then, the corrugated cardboard sheet horizontally supplied from the sheet feeding device between the two cylinders is pressed forward by the punching blade and the anvil and sent forward, and in this process, the sheet is punched in a required shape (so-called “soft cut”). ) Is applied.

[0003]

In the rotary die cutter, the axis of the die cylinder is set to be parallel to a reference line orthogonal to the sheet feeding direction. Therefore, the horizontal punching blades arranged on the die for applying the horizontal punching line parallel to the reference line to the corrugated cardboard sheet are also set to be parallel to the reference line. When punching a corrugated cardboard sheet with the horizontal punching blade set as described above, the horizontal punching blade abuts the sheet at one time over its entire length. Works. When such an impact load is repeatedly applied to the two cylinders, there is a problem that the service life of the bearings and the like of the two cylinders is shortened. Therefore, measures have been taken to increase the mechanical strength of the bearings and the like, but in this case, the apparatus is disadvantageously increased in size and the manufacturing cost is increased. Further, the above-mentioned impact load is also applied to the lateral punching blade of the die, and the service life of the blade may be shortened or the blade may be damaged.

[0004] In the rotary die cutter, in order to apply a ruled line for folding a box or the like to a corrugated cardboard sheet together with punching, a die having a ruled blade for the ruled line planted on the curved board may be used. At this time, it is pointed out that a large impact load is applied to the horizontal ruled blade for forming a ruled line (horizontal ruled) parallel to the reference line as in the case of the horizontal punching blade, and the ruled line is strongly inserted and the ruled line is broken.

In order to cope with the above-mentioned problem, a horizontal punching blade, a horizontal ruled blade, and the like disposed on a die cylinder having an axis set in parallel with a reference line are inclined by a required angle with respect to the reference line. Proposals have been made to tilt each blade with respect to the reference line by disposing or by tilting the axis of the die cylinder itself by a required angle with respect to the reference line.
According to this method, each blade does not abut against the corrugated cardboard sheet at one time over its entire length, but gradually abuts from one end to the other end. It can be reduced.

When the horizontal punching blade and the horizontal ruled blade are inclined with respect to the reference line as described above, it is necessary to supply the corrugated cardboard sheet between the die cylinder and the anvil cylinder in a corresponding inclined posture. However, there is no specific proposal of a paper feeder capable of supplying a corrugated cardboard sheet in a proper inclined posture.

[0007]

SUMMARY OF THE INVENTION The present invention has been proposed in view of the above-mentioned problems inherent in the prior art, and has been proposed in order to suitably solve the problem. An object of the present invention is to provide a sheet-like sheet feeding device that can be supplied to a processing unit on the downstream side in an appropriate inclined posture.

[0008]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems and appropriately attain the intended purpose, the present invention has a structure in which various kinds of processing units arranged on the downstream side are stacked on a sheet feeding table. In a sheet feeding device for feeding and feeding sheet materials one by one from its lowermost layer, a pair of sliders reciprocated toward the various processing units by an operating mechanism, and arranged on each of the sliders; An adjusting member that moves in the front and rear direction of the sheet feeding direction is disposed so as to be horizontally movable with respect to each of the pair of adjusting members. A kicker that abuts the contacting edge to feed the contacting edge, and by moving at least one of the adjusting members forward or backward, the contacting edge of the kicker is at a required angle with respect to the reference line. Is inclined, characterized by being configured to the front edge with respect to the reference line in the inclined posture can feed a sheet-like member in a posture inclined by a required angle.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a sheet feeding device according to the present invention.

FIG. 1 shows a schematic configuration of a rotary die cutter employing a sheet-like material feeder according to an embodiment.
1 and a die cutter unit (processing unit) 12 disposed downstream of the paper feeding device 11. The die cutter unit 12 according to the embodiment includes a pair of frames 13 and 13 that are separated in a width direction that intersects the sheet feeding direction.
A die cylinder 18 in which a die 17 in which a punching blade 15 of a required shape is planted on a curved board 16 having a curved shape is detachably wound in a vertical relationship with respect to a path line of a corrugated cardboard sheet 14 as a sheet material, the anvil cylinder 20 which is wound around the anvil 19 of urethane material receiving state bite the cutting edge of the punching blade 15 is rotatably disposed in parallel to the axis L _1. In addition, both cylinders 18, 20
Are rotationally driven in mutually opposite directions by an external drive source (not shown) commonly connected via a gear train. Accordingly, the corrugated cardboard sheet 14 horizontally supplied between the two cylinders 18 and 20 is squeezed by the punching blade 15 and the anvil 19 and sent to the downstream side. In this process, the sheet 14 is punched in a required shape. Is done.

As the anvil cylinder 20, in addition to the above-mentioned "soft cut" type, a steel plate made of stainless steel, aluminum, copper, or the like is wound around the outer periphery of a cylinder using an iron-based hard material. Use things,
The sheet-shaped material is punched by abutting the punching blade on the outer peripheral surface of the steel plate, or the sheet-like material is punched by directly abutting the punching blade on the outer peripheral surface of the cylinder without winding the steel plate. A "hard cut" style can be employed.

The axis L _{1 of the} cylinders 18, 20 disposed between the frames 13, 13 is set so as to be parallel to a reference line L orthogonal to the sheet feeding direction. On the other hand, the die 17 is configured such that the horizontal punching blade 15a of the punching blade 15
It is wound in such a manner that it is only inclined (see FIG. 2). That is, the corrugated paperboard sheet 14 supplied horizontally between the die cylinder 18 and the anvil cylinder 20 has
5a is gradually abutted from one end side to the other end side in the longitudinal direction to perform punching. Thereby, the horizontal punching blade 15a
However, it is possible to prevent large stress from being applied to both the cylinders 18 and 20 and the horizontal punching blade 15a itself by abutting the cardboard sheet 14 at one time over its entire length. In addition, the horizontal punching blade 1 in the punching blade 15
5a is preferably set between 1 and 15 degrees.

On the curved board 16, a ruled blade 21 for forming a ruled line on the corrugated cardboard sheet 14 is implanted.
Are arranged in parallel with the horizontal punching blade 15a. Accordingly, the horizontal crease blade 21a is also configured to gradually abut the corrugated cardboard sheet 14 from one end to the other end in the longitudinal direction to form the horizontal crease 22, similarly to the horizontal punching blade 15a.

Here, the corrugated cardboard sheet 1 is moved by the horizontal punching blade 15a inclined at an inclination angle θ with respect to the reference line L.
In order to form a horizontal punching line 23 parallel to its long side in 4,
Between the die cylinder 18 and the anvil cylinder 20, the front edge 14a of the corrugated paperboard sheet 14 in the sheet feeding direction is inclined by the same angle (-θ) in the direction opposite to the inclination direction of the horizontal punching blade 15a with respect to the reference line L. It is necessary to supply the sheet 14 in a posture. For this reason, the sheet feeding device 11 of the embodiment
Has the following configuration. However, in the sheet feeding device 11 of the embodiment, the die 17 is
Corresponding to the case where the horizontal punching blade 15a of the punching blade 15 is wound in a relationship parallel to the reference line L, the corrugated paperboard sheet 1 is placed in a posture (reference posture) in which the front edge 14a is parallel to the reference line L.
4 can be sent out, but in the following description, the case where the corrugated paperboard sheet 14 is supplied in an inclined posture will be mainly described.

That is, the sheet feeding device 11 shown in FIG. 3 includes a sheet feeding table 24 on which a large number of corrugated cardboard sheets 14 can be stacked and placed, and a cardboard sheet 14 laminated on the table 24.
And a kicker 25 that feeds out the sheet one by one from the lowermost layer to the downstream side. The kicker 25 is moved forward and backward in the sheet feeding direction by an operation mechanism 26 disposed below the sheet feeding table 24, and moves the corrugated cardboard sheet 14 downstream when the feed roller 2 moves forward.
It is configured to feed and supply to 7,27. The actuating mechanism 26 is disposed below the paper feed table 24 in parallel with the reference line L, and rotates in the forward and reverse directions within a required angle range by a drive source (not shown).
8 is provided. On the crankshaft 28, two crank arms 29 (only one is shown) are arranged so as to swing integrally with one another in the axial direction, and one end of a mounting shaft 30 is attached to the extending end of each arm 29. Each is pivoted. Two sliders 31 and 32 are disposed on the sheet supply table 24 so as to be reciprocally movable back and forth in the sheet feeding direction, separated from each other in the reference line L direction. The other ends of 30, 30 are pivotally supported. A kicker 25 is mounted between the two sliders 31 and 32 via adjustment mechanisms M ₁ and M _2, which will be described later, so that the crank shaft 28 is driven by a drive source within a required angle range. By rotating in the forward and reverse directions, the kicker 25 moves forward and backward in the sheet feeding direction.

[0016] Figure 5 and the interior of the first slider 31 positioned on the left side in FIG. 8, the first screw shaft 33 is rotatably distribution which extends parallel to the sheet feeding direction constituting the first adjustment mechanism M ₁ A gear 33 is provided at the rear end of the screw shaft 33 extending outward from the rear end of the first slider 31.
a is provided (see FIG. 7). A first motor (driving means) 34 constituting the first adjusting mechanism M ₁ is provided at a rear end portion of the paper feed table 24 corresponding to the position of the first slider 31. Operating mechanism 2
6, when the motor 34 is moved to the rearmost position.
Gear 3a of the first screw shaft 33
3a are configured to mesh with each other. A first adjusting member 35 is attached to the first screw shaft 33 in a screwed state. When the first screw shaft 33 is rotated forward and reverse by the first motor 34, the first adjusting member 35 is moved in the sheet feeding direction. It is designed to move back and forth. Note that the first motor 34, the rotational speed detector PG ₁ to be connected to the controller 36 shown in FIG. 4 is arranged, the movement of the first adjustment member 35 rotation speed of the motor 34 is input to the controller 36 The amount is configured to be detectable.

[0017] Also with respect to the second slider 32 positioned on the right side in FIGS. 5 and 8, similarly, the second screw shaft 37 constituting the second adjustment mechanism M ₂ therein is rotated to the first slider 31 described above The second screw shaft 3 is disposed freely.
The second motor can mesh to the gear 38a to be rotated normally and reversely by (drive means) 38 for a gear 37a disposed on the rear end of the 7 constitute a second adjustment mechanism M ₂ which is disposed on the paper feed table 24 It is configured. A second adjusting member 39 is attached to the second screw shaft 37.
Are arranged in a screwing state, and the second adjusting member 39 is moved forward and backward in the sheet feeding direction by rotating the second screw shaft 37 forward and backward by the second motor 38. Further, the second motor 3
8 via the rotation speed detector PG ₂
6, and the amount of movement of the second adjustment member 39 can be detected. The control device 36 controls the first motor 34 and the second motor 38 to rotate synchronously in the same direction to move the two adjusting members 35 and 39 synchronously, or to control the two motors 34 and 39 to move forward and backward. It is configured such that control can be performed to rotate the two adjusting members 35 and 39 in opposite directions by rotating the adjusting members 38 in opposite directions.

The upper surface of the first adjusting member 35 faces the upper surface of the first slider 31 via a long groove 31a formed in the first slider 31 and extending in parallel with the sheet feeding direction. 35a are formed. As shown in FIG. 5, a pivot pin 40 disposed near the left end of the kicker 25 and protruding downward is rotatably inserted into a pivot hole 35a of the first adjusting member 35, and Kicker 25
Is attached to the first adjusting member 35 so as to be horizontally rotatable. The upper surface of the second adjusting member 39 faces the upper surface of the slider 32 via a long groove 32a formed in the second slider 32 and extending in parallel with the sheet feeding direction. An inclined groove 39a inclined at a required angle to the direction is formed (see FIG. 6). A guide pin 41 disposed near the right end of the kicker 25 and protruding downward is movably inserted into the inclined groove 39a, and the kicker 25 moves the second adjusting member 3 within the length range of the inclined groove 39a.
9 so as to be movable.

That is, by moving the first adjusting member 35 and the second adjusting member 39 in mutually opposite directions, the kicker 25 allows the guide pin 41 to move horizontally with the pivot pin 40 as a fulcrum. 2 Inclined groove 39a of adjusting member 39
Along the trailing edge 14 of the cardboard sheet 14
(b), the contact edge 25a that comes into contact with b is inclined at the same angle as the inclination angle −θ of the front edge 14a (rear edge 14b) of the corrugated cardboard sheet 14 sent out in an inclined position (FIG. 8 (a)).
And the reference posture (FIG. 8B) parallel to the front edge 14a (rear edge 14b) of the cardboard sheet 14 sent out in the reference posture (parallel to the reference line L). By moving the pair of sliders 31 and 32 forward and backward with the kicker 25 positioned in the inclined posture and the reference posture, the abutting edge 25a abuts on the rear edge 14b of the corrugated cardboard sheet 14 at the time of forward movement. This is sent out. The angle of inclination of the inclined groove 39a formed in the second adjusting member 39 is such that the kicker 25 moves with respect to the adjusting members 35, 39 when the adjusting members 35, 39 are positioned with respect to the sliders 31, 32. Is set to a value that does not move while being held in the inclined posture or the reference posture.

The paper feeder 11 is provided with a cardboard sheet 14.
Front edge 14a, both side edges 14 orthogonal to the front edge 14a
c, 14c and the rear edge 14b, two front guides 42, 42, two side guides 43, 43 and a back guide 44, and these guides 42, 42, 4
The corrugated cardboard group to be stacked on the sheet feeding table 24 by 3, 43, 44 is configured to be supported in a proper inclined posture or a reference posture. That is, as shown in FIGS. 4 and 9, two upper and lower slide shafts 4 are provided between a pair of frames 45, 45 separated in the width direction orthogonal to the sheet feeding direction.
6, front guides 42, 42 and two side guides 43, 43 are slidably disposed on the slide shafts 46, 46, respectively. The front guides 42, 42 and the side guides 43,
Each of 43 is moved and adjusted by an appropriate adjusting means when the order of the corrugated cardboard sheet 14 is changed.

Each of the front guides 42 includes a movable support 47 slidably mounted on the slide shafts 46, 46 on a side of the front end edge 14a of the corrugated cardboard sheet 14 facing the front end 14a. It is arranged to be detachable and replaceable via appropriate fixing means (not shown). The front edge 1 of the corrugated cardboard sheet 14 in the inclined support member 48
As shown in FIG.
Inclined contact surface 48 inclined at the same angle as the inclination angle −θ of
The front edge 14a of the corrugated cardboard sheet 14 when it is sent out in an inclined posture is set so as to contact in parallel with the inclined contact surface 48a. When the cardboard sheet 14 is sent out from the sheet feeding device 11 in the reference posture, a reference support member having a front surface serving as a reference contact surface 49a parallel to the reference line L instead of the inclined support member 48. 49 is attached to the moving body 47 (see FIG. 10). The cardboard sheet 14 is provided between the lower ends of the support members 48 and 49 of the front guide 42 and the upper surface of the sheet feeding table 24.
The gap is set to be larger than the thickness of one sheet and smaller than the thickness of two sheets, so that only one lowermost cardboard sheet 14 can be sent out.

Each of the side guides 43 is provided on the moving body 50 slidably mounted on the slide shafts 46, 46 on the side of the moving body 50 facing the front end of the corrugated cardboard sheet 14, in the sheet feeding direction. The inclination supporting member 51 inclined at the same angle as the inclination angle −θ extends toward the downstream side, and the side edge 14c of the corrugated cardboard sheet 14 when sent out in an inclined posture is attached to the inclination supporting member 51. The contact is set in parallel (see FIG. 9). Further, the tilting support member 51 is fixed to the moving body 50 via a suitable fixing means such as a bolt so as to be detachable and exchangeable. When the cardboard sheet 14 is fed from the sheet feeding device 11 in the reference posture, Instead of the tilting support member 51, a reference support member 52 extending parallel to the sheet feeding direction is attached to the moving body 50 (see FIG. 10). The side guide 4
3, between the lower ends of the support members 51 and 52 and the upper surface of the sheet feeding table 24, like the support members 48 and 49 of the front guide 42, is larger than the thickness of one corrugated cardboard sheet 14, and It is set so that a gap smaller than the thickness of two sheets is defined.

The back guide 44 is provided on the sheet feeding table 2.
When the length (corresponding to the dimension in the sheet feeding direction) of the corrugated cardboard sheet 14 is changed, the movement of the cardboard sheet 14 is adjusted in a corresponding manner. It is. That is, the sheet feeding table 2
4, a first adjustment screw shaft 53 and a second adjustment screw shaft 54 extending in parallel with the sheet feeding direction are rotatably arranged separately from each other in the direction of the reference line L (see FIG. 13). . Gears 53 are provided at the rear ends of the first adjustment screw shaft 53 and the second adjustment screw shaft 54.
a, 54a are provided, and the gears 53a, 54a
As shown in FIG. 3, the gears 55a and 56a are rotated by a first adjusting motor 55 and a second adjusting motor 56 disposed at corresponding positions on the sheet feeding table 24 and are normally and reversely rotated. 11 and 14, a first adjusting member 57 is screwed to a first adjusting screw shaft 53 located on the left side in FIGS. 11 and 14, and the first adjusting screw shaft 53 is rotated forward and backward by a first adjusting motor 55. By rotating, the first adjusting member 57 moves forward and backward in the sheet feeding direction. Further, a second adjusting member 58 is screwed to the second adjusting screw shaft 54 located on the right side, and the second adjusting screw shaft 54 is rotated forward and reverse by the second adjusting motor 56, so that 2
The adjustment member 58 is configured to move forward and backward in the sheet feeding direction.

As shown in FIG. 12, the first adjusting member 5
7, a pivot hole 57a is formed on the upper surface, and a pivot pin 60 disposed near the left end of the back guide 44 and protruding downward is rotatable in the pivot hole 57a. The back guide 44 is inserted so as to be horizontally rotatable with respect to the first adjusting member 57. The second adjusting member 58 is formed with an inclined groove 58a that is inclined at a required angle with respect to the sheet feeding direction.
A guide pin 61 disposed near the right end of the back guide 44 and protruding downward is movably inserted into the inclined groove 58.
In the length range of a, the back guide 44 becomes the second adjusting member 58.
Mounted movably with respect to

That is, by moving the first adjusting member 57 and the second adjusting member 58 in directions opposite to each other, the back guide 44 horizontally rotates around the pivot pin 60 as a fulcrum. 61 moves along the inclined groove 58a of the second adjusting member 58, and the cardboard sheet 14
Of the front end edge 44a contacting the rear end edge 14b of the corrugated cardboard sheet 14 sent out in the inclined posture at the same angle as the inclination angle -θ of the rear end edge 14b of the corrugated cardboard sheet 14 (FIG. 14A).
And a reference posture (parallel to the reference line L) parallel to the rear end edge 14b of the cardboard sheet 14 sent out in the reference posture (FIG. 14).
(b)). In addition, the first
The adjusting motor 55 and the second adjusting motor 56 are provided with rotation speed detectors PG ₃ and PG ₄ connected to the control device 36, and the rotation speeds of the motors 55 and 56 are controlled by the control device 36.
And the amount of movement of both adjustment members 57 and 58 can be detected. When the length of the cardboard sheet 14 is changed, both the adjustment motors 55 and 56 are rotated in the same direction, and when the posture of the sheet 14 is changed, the two adjustment motors 55 and 56 are rotated in the opposite directions. Is done.

[0026]

Next, the operation of the sheet feeding device according to the above-described embodiment will be described.

[0027]

[When the corrugated cardboard sheet is sent out in an inclined position] As shown in FIG. 2, the die cutter unit 12 in which the punching blades 15 of the die 17 are arranged obliquely with respect to the die cylinder 18 is used.
When the corrugated cardboard sheet 14 is sent out from the sheet feeding device 11 in an inclined posture, inclined support members 48 and 51 are attached to the front guides 42 and 42 and the side guides 43 and 43 as shown in FIG. As for the back guide 44, the first adjustment screw shaft 53 and the second adjustment screw shaft 54 disposed on the feed table 24 by the first adjustment motor 55 and the second adjustment motor 56 are opposite to each other. And the two adjusting members 57 and 58 on which the back guides 44 are disposed are moved in mutually opposite directions. As a result, the back guide 44 has its front edge 4
4a is positioned in an inclined posture inclined with respect to the reference line L (see FIG. 14A). The rotation speed detector PG ₃ ,
Based on the speed detected by PG _4, wherein the control device both motors 55 and 56 is controlled at 36, the back guide 44 is positioned at a preset angle of inclination - [theta].

The positions of the front guides 42, 42, the side guides 43, 43 and the back guide 44 are adjusted according to the dimensions of the corrugated cardboard sheet 14, so that the tilting support member 4
8, 51 and the back guide 44 to the cardboard sheet 14
, Each edge 14a, 14b, 14c, 14c can be supported in abutment. Regarding the position adjustment of the back guide 44, the guide 44 is adjusted to move forward and backward in the sheet feeding direction while maintaining the inclined posture by rotating both the adjustment screw shafts 53 and 54 in the same direction. Further, the positions of the front guides 42 need not necessarily be adjusted, and the front guides 42 may be held at fixed positions.

Next, with respect to the kicker 25 is first by the actuating mechanism 26 to move the slider 31, 32 2 group rearmost position, the rotated by the motor 34, 38 of each adjustment mechanism M _1, M ₂ The gears 33a, 37a of the screw shafts 33, 37 are engaged with the gears 34a, 38a (see FIG. 7). Under this condition, the first motor 34 and the second motor 3
8, the corresponding first screw shaft 33 and second screw shaft 37 are rotated in opposite directions to each other, and the kicker 25 is disposed.
The base adjustment members 35, 39 are moved in opposite directions. As a result, the kicker 25 is positioned in an inclined posture in which the contact edge 25a is inclined with respect to the reference line L (see FIG. 8A). The control device 36 controls both motors 34 and 38 based on the rotation speeds detected by the rotation speed detectors PG ₁ and PG ₂ , and the kicker 25 is positioned at a preset tilt angle −θ. You. Further, regarding the stroke adjustment of the kicker 25, the double screw shafts 33, 37
By rotating the kicker 2 in the same direction by the same amount.
5 is adjusted to move forward and backward with respect to the sliders 31 and 32 in the sheet feeding direction while maintaining the inclined posture.

As described above, each of the guides 42, 42, 43,
With the guides 43, 44 adjusted, these guides 42, 42,
When the corrugated cardboard sheet 14 is supplied between 43, 43, and 44, the sheet 14 is stacked on the sheet supply table 24 with the front edge 14a inclined at a preset angle (-θ). In this state, the kicker 25
Is the rear edge 1 of the corrugated cardboard sheet 14
It stands by at a position facing back from 4b.

When the kicker 25 is advanced by the operating mechanism 26, the abutting edge 25a abuts in parallel with the rear edge 14b of the lowermost corrugated cardboard sheet 14 (FIG. 8 (a)). The sheet is sent out to the feed rolls 27, 27 arranged on the downstream side while maintaining the inclined posture. Then, the corrugated cardboard sheet 14 sandwiched between the feed rolls 27, 27 is horizontally supplied between the die cylinder 18 and the anvil cylinder 20 by the rolls 27, 27. At this time, the supply posture of the corrugated cardboard sheet 14 is such that its front edge 14a is inclined in the opposite direction to the horizontal punching blade 15a provided in the die cylinder 18, as shown in FIG. That is, the horizontal punching line 23 is
Since the horizontal punching blade 15a for applying the pressure gradually contacts the corrugated cardboard sheet 14 at once over its entire length, a large stress (impact force) is applied to the die cylinder 18, the anvil cylinder 20, and the horizontal punching blade 15a itself. ) Is not added. Similarly, the horizontal rule 2 is attached to the corrugated
Since the horizontal ruled blade 21a for applying 2 gradually comes into contact with the corrugated cardboard sheet 14 all at once over its entire length, a large stress (impact force) is not applied to the horizontal ruled blade 52a itself. .

[0032]

[When a corrugated cardboard sheet is fed out in a reference position] A die cutter unit 1 in which a horizontal punching blade 15a of a die 17 is arranged in parallel with a reference line L with respect to the die cylinder 18.
In the case where the corrugated cardboard sheet 14 is sent out from the sheet feeding device 11 in the reference posture, the front guides 42, 42 and the side guides 43, 43, as shown in FIG.
Reference support members 49 and 52 are mounted in place of the tilt support members 48 and 51, respectively. As for the back guide 44, the first adjusting screw shaft 53 and the second adjusting screw shaft 54 are rotated in opposite directions to move the two adjusting members 57, 58 in opposite directions. ,
As shown in FIG. 14 (b), the front end 44a is positioned in a reference posture parallel to the reference line L.

Further, regarding the kicker 25, the gears 33a, 37a of the screw shafts 33, 37 are connected to the gears 34a, 3
8a, the corresponding first screw shaft 33 and second screw shaft 37 are rotated in opposite directions by the first motor 34 and the second motor 38, and the kicker 25 is rotated.
Move the two adjusting members 35 and 39 provided with the members in directions opposite to each other. As a result, the kicker 25 moves as shown in FIG.
As shown in (2), the contact edge 25a is positioned in the reference posture that is parallel to the reference line L.

Accordingly, the corrugated cardboard sheet 14 is stacked on the sheet supply table 24 in a reference position in which the front edge 14a is parallel to the reference line L, and is sent out by the kicker 25 to the downstream side in the same position. Cylinder 18
In the process of passing between the and the anvil cylinder 20, the punching blade 15 performs appropriate punching. That is, according to the specifications of the die cutter unit 12, each of the guides 42, 4
By changing the positions of the back guide 44 and the kicker 25 while exchanging the 2, 43, 43, the feeding posture of the corrugated cardboard sheet 14 can also be used in the inclined posture or the reference posture.

[0035]

[Modification] The mounting structure of the kicker and the adjusting member is not limited to the structure of the above-described embodiment, and other structures can be appropriately adopted. For example, in the modified example shown in FIGS.
5, a hole 67 corresponding to the first adjusting member 35 is provided.
Is formed, and a first bolt 68 as a first positioning means inserted through the through hole 67 is screwed into a screw hole 69 formed in the first adjusting member 35. The kicker 25 is positioned and fixed with respect to the first adjusting member 35 by the first bolt 68, and the fixing is released. In the unlocked state, the kicker 25 is fixed to the first adjusting member 35 with the first bolt 68 as a fulcrum. So that it can rotate horizontally. At a position corresponding to the second adjustment member 39 in the kicker 25, an arc-shaped hole 70 having an arc shape centered on the pivot (the first bolt 68) of the kicker 25 is formed. A second bolt 71 as a positioning means is configured to be screwed into a screw hole 72 formed in the second adjusting member 39. That is, in a state where the positioning and fixing state of the kicker 25 is released by loosening the two bolts 68 and 71, for example, the second adjusting member 39
By moving only the kicker 25, the second bolt 71 moves along the arcuate hole 70 while rotating the kicker 25 about the first bolt 68 as a pivot, and the kicker 25 moves to the inclined posture or the reference posture. Be changed. Then, by tightening both bolts 68 and 71 after the posture change, the kicker 25 is positioned and fixed in the inclined posture or the reference posture.
At the time of adjustment, only the first adjustment member 35 may be moved, or both adjustment members 35 and 39 may be moved in opposite directions.

FIGS. 17 and 18 show a modification of the mounting structure between the back guide and the adjusting member. A through hole 73 is formed in the back guide 44 at a position corresponding to the first adjusting member 57. The first fixing bolt 74 inserted through the through hole 73 is screwed into a screw hole 75 formed in the first adjusting member 57. And
The positioning and fixing of the back guide 44 with respect to the first adjusting member 57 and the release of the fixing are performed by the first fixing bolt 74, and in the released state, the back guide 44 is supported by the first fixing bolt 74 as the fulcrum. It can rotate horizontally with respect to the member 57. In addition, at a position corresponding to the second adjusting member 58 in the back guide 44, a rotation fulcrum (the first fixing bolt 74) of the back guide 44 is provided.
Are formed in the shape of a circular arc with the center at
The second fixing bolt 77 inserted through the second adjusting member 5
8 is configured to be screwed into a screw hole 78 formed. That is, in a state where the positioning and fixing state of the back guide 44 is released by loosening the two bolts 74 and 77, for example, by moving only the second adjusting member 58, the back guide 44 turns the first fixing bolt 74. While rotating as the fulcrum, the second fixing bolt 77 moves along the arc-shaped hole 76, and the back guide 44 is changed to the inclined posture or the reference posture. And after the posture change, both bolts 74,
By tightening 77, the back guide 44 is positioned and fixed in the inclined posture or the reference posture. When adjusting the back guide 44, only the first adjusting member 57 may be moved, or both the adjusting members 57 and 58 may be moved in mutually opposite directions.

As another example related to the mounting structure of the kicker and the adjusting member, in the above embodiment, a pivot hole and an inclined groove through which a pin protruding from the adjusting member is inserted are formed in the kicker. The kicker may be configured to be horizontally movable by forming inclined grooves on both left and right sides, respectively. Further, in a modified example, arc holes may be respectively formed at positions corresponding to both adjustment members in the kicker, and the posture may be changed by moving both adjustment members in mutually opposite directions.
Further, the same modification can be adopted for the mounting structure of the back guide and the adjusting member.

Next, FIGS. 19 and 20 show another example of the drive system of the screw shaft in the kicker and the back guide. The modified example shown in FIG.
The transmission gear 79 is meshed with the gears 33a, 37a of the screw shafts 33, 37 related to 5 and the gears 53a, 54a of the screw shafts 53, 54 related to the back guide 44, respectively.
A sprocket 81 is connected to each transmission gear 79 via a clutch 80 so that power can be turned on and off to the screw shafts 33, 37, 53, 54. Further, a chain 84 is wound around a sprocket 83 rotated forward and reverse by a motor 82 as a driving means disposed on the paper feed table 24, and the four sprockets 81,
All the screw shafts 33, 37, 53, 54 by one motor 82
Is configured to rotate. In other words, by driving the motor 82 with all the clutches 80 engaged, all the screw shafts 33, 37, 53, 54 rotate synchronously in the same direction, and change the attitude of the kicker 25 and the back guide 44. It is possible to adjust the movement in the front-back direction without any need. Further, for example, if the motor 82 is driven in a state where the clutches 80 and 80 on the left side shown in the figure related to the screw shafts 33 and 53 are disengaged and the clutches 80 and 80 on the right side shown in the figure related to the screw shafts 37 and 54 are engaged, Only the screw shafts 37 and 54 rotate, and the postures of the kicker 25 and the back guide 44 can be changed.

In the modification shown in FIG. 20, the left idle gear 85 is meshed with the gear 33a of the first screw shaft 33 of the kicker 25 and the gear 53a of the first adjusting screw shaft 53 of the back guide 44, respectively. The right idle gear 86 is meshed with the gear 37a of the second screw shaft 37 and the gear 54a of the second adjustment screw shaft 54 in the back guide 44. Each left idle gear 85
A bevel gear 87 is connected to each bevel gear 87.
Are meshed with corresponding transmission bevel gears 89 disposed on the left drive shaft 88. A bevel gear 90 is connected to each right idle gear 86, and each bevel gear 90
Are meshed with corresponding transmission bevel gears 92 disposed on the right drive shaft 91. Further, a first line shaft 95 and a second line shaft 96 are connected via a bevel gear mechanism 94 to a motor 93 as a driving means disposed on the sheet feeding table 24.
Is connected to a left drive shaft 88 via a left clutch 97, and the second line shaft 96 is connected to a right drive shaft 91 via a right clutch 98. That is, by driving the motor 93 with both clutches 97, 98 engaged, all the screw shafts 33, 37, 53, 54 rotate synchronously in the same direction, and change the attitude of the kicker 25 and the back guide 44. It is possible to adjust the movement in the front-back direction without having to do it. Further, for example, if the motor 93 is driven in a state where the left clutch 97 is disengaged and only the right clutch 98 is engaged, only the right screw shafts 37 and 54 rotate, and the postures of the kicker 25 and the back guide 44 can be changed. it can.

In the drive system described above, the two screw shafts located on the left side and the two screw shafts located on the right side may be rotated by different motors. In that case, for example, the gear 34a and the gear 55a in FIG.
May be engaged via an idle gear, and only one of the first motor 34 and the first adjusting motor 55 may be used.

As shown in FIG. 21, in the die cutter unit 12 disposed downstream of the sheet feeding device 11,
In Moto was wound die 17 so that the facing lateral punching blade 15a in a parallel relationship with the axis L ₁ relative to the die cylinder 18, the required angle θ of the axis L ₁ of the die cylinder 18 with respect to the reference line L It may be arranged so that it is only inclined.

Further, the sheet feeding device 11 according to the embodiment is
As shown in the figure, multiple printer units (processing units)
It is also possible to employ a printer die cutter 63 which is a typical example of a corrugated cardboard sheet processing apparatus provided with the die cutter unit 62 and the die cutter unit 12. The printer unit 62 has a printing plate (not shown) sandwiching the pass line of the cardboard sheet 14.
The printing cylinder 64 and the impression cylinder 65 around which the printing cylinder 64 is wound are arranged to rotate in mutually opposite directions, and an ink transfer mechanism 66 is provided on the side where the printing cylinder 64 is provided. When the corrugated cardboard sheet 14 is supplied in an inclined posture, in each printer unit 62, it is necessary to incline the printing plate wound around the printing cylinder 64 by a required angle with respect to the reference line L. The printing cylinder 64 of the printer unit 62 is set to be on the opposite side (lower side in the drawing) to the position of the die cylinder 18 in the die cutter unit 12 arranged on the downstream side, and The printing surface is set so as not to be stained during the punching process. The relationship between the printing cylinder 64 and the impression cylinder 65 in the printer unit 62 and the relationship between the die cylinder 18 and the anvil cylinder 20 of the die cutter unit 12 may be upside down from the illustrated example. However, when processing the corrugated cardboard sheet 14 in the “hard cut” format described above, the anvil cylinder 20 and the printing cylinder 64
It is recommended that the outside diameters of these be set to be substantially the same.

The adjusting mechanism of the adjusting member provided on the slider is not limited to the above-described configuration of the screw shaft and the motor, and a pinion meshing with the rack provided on the adjusting member is provided on the slider. Then, a configuration in which the adjustment member is moved back and forth by rotating the pinion forward and reverse by a motor can be adopted. In the embodiment and the modified example, the case where the front and rear adjustment of the kicker and the back guide and the change of the attitude of the kicker and the back guide are performed by the same mechanism when the order is changed due to the change in the size of the cardboard sheet is described. However, they may be performed by different mechanisms. The mechanism in this case can be dealt with by paralleling the mechanism of the embodiment or the modified example and controlling the on / off of the drive by a clutch or the like.

For each of the front guides and side guides, instead of replacing the support members, the support members are arranged so as to be changeable in posture, and the support members are changed between the inclined posture and the reference inclined posture. You may do so. As for the back guide, it is also possible to adopt a configuration in which guide bodies for inclination and reference are prepared, and the guide body is attached to and detached from the guide.

[0045]

As described above, according to the sheet-like sheet feeding apparatus of the present invention, the kicker for feeding the sheet-like sheets stacked on the sheet feeding table can be positioned in an inclined position. In addition, the sheet material can be sent out to the downstream processing unit in an inclined posture. In particular,
In the case of arranging a die cutter unit as a processing unit and processing the sheet material by arranging the blades of the unit at an angle, it is possible to supply the sheet material in an appropriate inclined posture to achieve accurate processing. In addition, since the kicker can be changed to the reference posture as required, the sheet material can be sent out in the inclined posture or the reference posture according to the specifications of the downstream processing unit. Further, the attitude of the kicker can be automatically changed by controlling the driving means, which is advantageous in that labor can be saved.

[Brief description of the drawings]

FIG. 1 is a side view showing a schematic configuration of a die cutter unit including a sheet feeding device according to a preferred embodiment of the present invention.

FIG. 2 is a schematic plan view showing a relationship between a die cutter unit and a cardboard sheet according to the embodiment.

FIG. 3 is a side view illustrating a schematic configuration of a sheet feeding apparatus according to the embodiment.

FIG. 4 is a schematic configuration diagram illustrating a control system of an adjustment mechanism of a kicker in the sheet feeding device according to the embodiment.

FIG. 5 is a longitudinal rear view of the kicker and the adjusting member according to the embodiment.

FIG. 6 is a plan view showing an adjusting member according to the embodiment.

FIG. 7 is a vertical sectional side view of a main part of an adjustment mechanism of the kicker according to the embodiment.

FIG. 8 is a schematic plan view illustrating a relationship between a kicker and an adjustment member in the sheet feeding device according to the embodiment.

FIG. 9 is a schematic plan view showing the sheet feeding device according to the embodiment in a state where the cardboard sheet is set to be sent out in an inclined posture.

FIG. 10 is a schematic plan view showing the sheet feeding device according to the embodiment in a state where the cardboard sheet is set to be sent out in a reference posture.

FIG. 11 is a rear view in which a part of the back guide and the adjusting member according to the embodiment is cut away.

FIG. 12 is a plan view showing an adjusting member according to the embodiment.

FIG. 13 is a vertical sectional side view showing a main part of an adjustment mechanism of the back guide according to the embodiment.

FIG. 14 is a schematic plan view illustrating a relationship between a back guide and an adjusting member in the sheet feeding device according to the embodiment.

FIG. 15 is a longitudinal rear view of a kicker and an adjusting member according to a modified example.

FIG. 16 is a schematic plan view showing the relationship between the kicker and the adjustment member shown in FIG.

FIG. 17 is a rear view in which a part of a back guide and an adjusting member according to a modification is cut away.

18 is a schematic plan view showing the relationship between the back guide and the adjustment member shown in FIG.

FIG. 19 is a schematic configuration diagram showing a drive system of a screw shaft according to a modification.

FIG. 20 is a schematic configuration diagram showing a drive system of a screw shaft according to another modification.

FIG. 21 is an explanatory diagram showing a modified example of the die cutter unit.

FIG. 22 is a schematic explanatory view showing a printer die cutter employing the sheet feeding device according to the embodiment.

[Explanation of symbols]

Reference Signs List 12 die cutter unit (processing unit) 14 corrugated cardboard sheet (sheet-like material) 14b rear end edge 24 paper feed table 25 kicker 25a contact edge 26 operating mechanism 31 first slider 32 second slider 33 first screw shaft 34 first motor (Drive means) 35 First adjusting member 37 Second screw shaft 38 Second motor 39 Second adjusting member 39a Inclined groove 40 Pivot pin 41 Guide pin 62 Printer unit (processing unit) 68 First bolt (first positioning means) 70 arc-shaped hole 71 second bolt (second positioning means) 82 motor
(Drive means) 93 Motor (Drive means) L Reference line M ₁ First adjustment mechanism M ₂ Second adjustment mechanism

Claims (4)

[Claims] 1. A processing unit (1) disposed downstream.
2, 62), the sheet material (14) stacked on the sheet feeding table (24) is fed out one by one from the lowermost layer thereof. a pair of sliders (31, 32) which is reciprocated toward the unit (12, 62), wherein arranged on each slider (31, 32), the sheet feeding direction by an adjustment mechanism (M _1, M ₂₎ Adjustable member that moves back and forth (35,39)
And a pair of the adjusting members (35, 39) are disposed so as to be horizontally movable with respect to each of the pair of adjusting members (35, 39).
A kicker (25) that abuts an abutment edge (25a) against a rear edge (14b) of the sheet-shaped material (14) when the (31, 32) advances, and feeds the kicker (25). By advancing or retracting at least one of the kickers (25), the contact edge (25a) of the kicker (25) is inclined by a required angle with respect to the reference line (L). A sheet-like sheet feeding device characterized in that the sheet-like material (14) can be sent out in a posture in which the front edge (14a) is inclined by a required angle. 2. Each of the adjusting mechanisms (M ₁ , M ₂ ) includes a screw shaft (33, 37) rotatably disposed on each of the sliders (31, 32).
Drive means (34, 38, 82, 9) for rotating the screw shafts (33, 37) forward and reverse
3. The sheet-like sheet feeding apparatus according to claim 1, further comprising (3), wherein an adjusting member (35, 39) is screwed to each of the screw shafts (33, 37). 3. The kicker (25) is pivotally supported by a pivot pin (40) so as to be horizontally rotatable with respect to the one adjusting member (35). An inclined groove (39a) inclined with respect to the sheet feeding direction is formed, and a guide pin (41) disposed on the kicker (25) is movably inserted into the inclined groove (39a), and both adjusting members ( 35, 39), the guide pin (41) moves along the inclined groove (39a), and the kicker (25) has its abutting edge (25a) at the reference line (L). 3. The sheet feeding device according to claim 1, wherein the posture is changed to a reference posture and an inclined posture which are parallel to the sheet posture. 4. The kicker (25) is positioned and fixed to the one adjusting member (35) by a first positioning means (68), and is released by the first positioning means (68). ) As a fulcrum, and at a position corresponding to the other adjustment member (39) in the kicker (25), an arc-shaped arc hole () is formed around the first positioning means (68). 70 is formed, and the second positioning means (71) inserted through the arc-shaped hole (70) is configured to be positioned and fixed to the other adjusting member (39).
At least one of the adjustment members (35, 39) in the unlocked state of (71)
By moving back and forth, the second positioning means (71) moves along the arc-shaped hole (70), and the kicker (25) has its abutting edge (25a) parallel to the reference line (L). 3. The sheet feeding device according to claim 1, wherein the posture is changed between a reference posture and an inclined posture.