JP2000153663A - Apparatus for recovering waste form-plate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily take out a base sheet contained in a waste form-plate container from the container. SOLUTION: A waste form-plate container 22 for recovering a base sheet 13 is removably mounted on a bottom plate 21c of a support frame 21. A cover plate 24 is openably supported to a shaft 25 as a center at an upper end opening of the container 22, and always held in a horizontal state by a spring 26. A cover plate pressing mechanism 51 is provided at an upper part of the frame 21, and a pressing roller 57 for pressing an upper surface of the plate 24 is provided at an end of an arm 54 to be driven. A shaft 52 is rotated to rotate the plate 24 clockwise around the shaft 25 as a center to clog the sheet 13 in the waste form-plate container 22 while compressing. When the sheets 13 are fully filled in the container 22, a grip 22a is grasped and the container 22 is taken out from the frame 21. Then, the sheet 13 can be taken out only by opening the plate 24.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stencil collecting device provided in a stencil printing machine or the like, and more particularly to a stencil container for compressing and storing used stencil paper.

[0002]

2. Description of the Related Art In general, a rotary stencil printing machine includes a cylindrical plate cylinder, and ink supply means is provided inside the plate cylinder. Further, a stencil sheet can be wound around the outer peripheral surface of the plate cylinder formed of an ink-permeable material. Then, printing is performed on the paper by rotating the plate cylinder and transporting the printing paper between the press roller and the printing paper.

The stencil wound around the plate cylinder is discarded after use.
No. 2486 has been proposed. In this apparatus, the stencil sheet which has been discharged is transferred into a stencil discharge container by a transfer mechanism, and the stencil sheet is compressed by a compression plate provided above the stencil discharge container.

[0004]

However, in the above-mentioned conventional plate discharging and collecting apparatus, since the upper opening edge of the plate discharging container is open, the base paper is directly compressed by the compression plate, and the base paper is bonded to the compression plate. There has been a problem that the base paper is lifted, and the base paper cannot be reliably filled in the plate discharge container.

Further, in the conventional plate discharging and collecting apparatus, since the plate discharging container has no cover plate, after the operation of compressing the base paper in the plate discharging container by the compression plate is repeatedly performed, the plate discharging container is removed and the sheet is removed from the container. When discarded, there is a problem that the base paper easily pops out and the discarding operation cannot be performed smoothly.

SUMMARY OF THE INVENTION An object of the present invention is to provide a plate discharging and collecting apparatus which solves the above-mentioned problems of the prior art, suppresses the floating of the base paper in the plate discharging container, and can smoothly carry out the disposal of the base paper. Is to do.

[0007]

In order to achieve the above object, according to the first aspect of the present invention, a support frame provided on a base paper discharge side, a support frame detachably mounted on the support frame, and A plate discharging container capable of storing a base paper, a lid plate provided at the upper opening of the plate discharging container so as to be openable and closable and always kept in a closed state by an urging member, A base paper transfer mechanism for transferring the base paper to be transferred into the container, and a base paper provided on the support frame side and pressed against the urging force of the urging means by pressing the lid plate into the plate discharge container above the lid plate. And a cover plate pressing mechanism capable of compressing the plate. The plate discharging container is provided so as to be separable from the support frame together with the cover plate.

According to the second aspect of the present invention, in the first aspect, a lid plate is rotatably supported by a shaft with respect to an upper opening of the plate discharge container, and the lid is closed by an urging means. It is elastically held at the position where it does.

According to a third aspect of the present invention, in the first or second aspect, the cover plate pressing mechanism is configured to elastically press the cover plate. According to a fourth aspect of the present invention, in the third aspect, the cover plate pressing mechanism includes a drive shaft rotatably supported at a predetermined position of the support frame by an external drive source, and a drive shaft supported by the drive shaft. An arm, a driven arm rotatably supported by the drive shaft, an urging means interposed between the driving and driven arms, and a pressing roller supported at a tip end of the driven arm. When the drive shaft is rotated in one direction, a drive arm,
The pressing roller is configured to be elastically pressed against the upper surface of the lid plate via the urging means and the driven arm.

[0010] According to the fifth aspect of the present invention, the first to fourth aspects are provided.
In any one of the above, the base paper transfer mechanism is constituted by a plurality of pairs of conveyor belts, and is configured to transfer the base paper into the container from an opening formed between an upper opening edge of the stencil discharge container and a cover plate. .

According to a sixth aspect of the present invention, in the fifth aspect of the present invention, a plurality of concave portions are formed at a front end portion of the cover plate to avoid interference with a plurality of pairs of conveyor belts. In the invention described in claim 7, in claim 4, the support frame is provided with a first sensor, and the driven arm is provided with a first dock corresponding to the first sensor,
When the operation of pressing the cover plate by the driven arm is repeated and the position thereof reaches the set position, it is detected that the first dock is filled with the base paper in the plate discharging container corresponding to the first sensor, and A second sensor is provided on the support frame, and the standby position of the pressing roller is detected when the second dock attached to the drive shaft corresponds to the second sensor.

[0012]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a stencil printing apparatus according to an embodiment of the present invention;

A rotary stencil printing apparatus to which the plate discharging and collecting apparatus 11 of this embodiment is applied has a cylindrical plate cylinder 12, and an ink supply means (not shown) is provided inside the plate cylinder 12. ing. A stencil sheet 13 on which data to be printed is recorded can be wound around the outer peripheral surface of the plate cylinder 12 formed of an ink-permeable material.
Then, the printing drum 12 is rotated and the printing paper is sandwiched between a printing roller and a press roller (not shown) to be conveyed, so that a desired pattern or the like is printed on the paper.

A plate discharge (base paper) recovery device 11 is mounted on the side of the base cylinder 13 behind the plate cylinder 12 where the base paper 13 is discharged. A locking device 14 for a base paper 13 is supported on the plate cylinder 12 by a shaft 15 so as to be tiltable, and the base paper 13 is always held at a winding position.

A support frame 21 constituting the plate discharging and collecting apparatus 11 is fixed to a predetermined position on a side plate (not shown) of the stencil printing apparatus by a fastening bolt (not shown) or the like. The support frame 21 includes a pair of left and right side plates 2 as shown in FIG.
1a, 21b and a bottom plate 21c located below the two side plates 21a, 21b. A plate discharge container 22 for collecting the plate discharge paper 13 is detachably accommodated rearward (left side in FIG. 1) on the upper surface of the bottom plate 21c. Have been. The accommodation position of the plate discharge container 22 is regulated by a stopper 23 attached to the support frame 21.

At the upper opening of the plate discharging container 22, a cover plate 2 is provided.
4 is supported by a shaft 25 so as to be rotatable in the vertical direction. The cover plate 24 is wound around the outer peripheral surface of the shaft 25, one end of the cover plate 24 is locked to the plate discharging container 22, and the other end of the cover plate 24 is locked by a coil-shaped spring 26 as a biasing means. The plate 24 is elastically supported in a substantially horizontal state covering the upper end opening of the plate discharge container 22. 24a is a handle provided at the base end of the cover plate 24.

Next, a mechanism 30 for transferring the base paper 13 from the plate cylinder 12 into the plate discharge container 22 will be described. Figure 2
As shown in FIG. 3, a pair of upper and lower parallel drive shafts 31 and 32 rotated by a drive motor (not shown) are horizontally supported by a pair of left and right side plates 21a and 21b of the support frame 21 horizontally over the entire width. ing. This drive shaft 3
Drive rollers 33 and 34 are fitted to and fixed to a plurality of locations (five locations in this embodiment). A plurality of brackets 35 to 35 are fixed by welding or the like to the lower surface of the horizontal plate portion 21d provided inside the upper portion of the support frame 21, and the brackets 35 to 35 are respectively supported by support shafts 36 to 3.
6, the driven rollers 37 to 37 are connected.
Also, a pair of left and right side plates 21a, 2
1b, one mounting bar 38 is horizontally supported and supported on the mounting bar 38. Brackets 39 to 39 are supported on the mounting bar 38 at a plurality of locations corresponding to the driving rollers 34 to 34. , Driven rollers 41 to 41 are supported via support shafts 40 to 40. The drive roller 3
Belts 42 to 42 are mounted between the driven rollers 37 to 37 and the driven rollers 37 to 37, respectively.
Belts 43 to 43 are mounted between the driven rollers 41 to 41, respectively. The base paper 13 peeled off from the plate cylinder 12 is guided between the upper and lower drive rollers 33 and 34, and thereafter sandwiched between belts 42 and 43 to be driven by the driven roller 3
It is transferred to the side 7 and 41 and transferred into the plate discharge container 22.

As shown in FIG. 4, an opening 2 through which the pair of driven rollers 37, 41 can enter between the top edge of the front plate 22b of the plate discharge container 22 and the tip edge of the cover plate 24.
2c is provided. The opening 22c has a cutout 22d into which the bracket 39 and the belt 43 can enter. A notch recess 24b is formed at the tip of the cover plate 24 in correspondence with the driven rollers 37, 41 and brackets 35, 39 so that the cover plate 24 does not interfere with these members when the cover plate 24 is opened and closed. ing.

Next, the cover plate pressing mechanism 51 mounted on the upper part of the support frame 21 will be described. A drive shaft 52 is horizontally supported by a drive motor (not shown) at a predetermined position on the left and right side plates 21a, 21b of the support frame 21 at a predetermined position. The drive shaft 5
2 and 3, one end of a drive arm 53 is connected with a screw as shown in FIGS. 2 and 3, and a base end of a driven arm 54 is connected to the drive shaft 52 at a position separated from the drive arm 53 by a predetermined distance. They are connected so as to be relatively rotatable. A coil spring 55 as urging means is provided on the outer peripheral surface of the drive shaft 52 so as to be located between the drive arm 53 and the driven arm 54.
And one end of the spring 55 is connected to the drive arm 53.
And the other end is connected to the driven arm 54.
Is inserted and locked in the middle part of.

A pin 56 is provided at the tip of the driven arm 54.
The pressing roller 57 is supported via the. When the driven arm 54 is rotated clockwise in FIG. 1 around the drive shaft 52, the pressing roller 57 is in rolling contact with the upper surface of the lid plate 24, and
Are turned around the shaft 25 in the same direction against the elasticity of the spring 26.

On the lower surface of the upper plate portion 21e of the support frame 21, corresponding to the first dog 58 projecting from the base end of the driven arm 54, whether the waste paper 13 is full in the stencil discharge container 22 is determined. First sensor 59 for detecting whether or not
Is installed. A second dog 60 is fitted and fixed on the drive shaft 52, and the position of the driven lever 54 is properly positioned at the standby position on the upper plate portion 21 e of the support frame 21 in correspondence with the dog 60. A second sensor 61 for detecting whether or not the sensor is present is attached.

Next, the operation of the plate discharging and collecting apparatus configured as described above will be described. In FIG. 1, plate cylinder 1
When the base paper 13 wrapped around the outer peripheral surface of 2 is used,
An operation signal is output from a control device (not shown), and the locking state of the base paper 13 by the locking device 14 is released. And
The plate cylinder 12 is rotated, and the plate discharge paper 13 is inserted between the pair of upper and lower belts 42 and 43 of the transfer mechanism of the plate 13, and the discharge plate 13 is transferred into the plate discharge container 22.

When the transfer operation of the first stencil sheet 13 is completed, a control device (not shown) is provided based on the completion signal.
, An operation signal is output, the cover plate pressing mechanism 51 is driven, and the drive shaft 52 is rotated by a stepping motor (not shown). Then, the rotation of the drive shaft 52 is
3. The force is transmitted to the driven arm 54 via the spring 55, and the pressing roller 57 is rotated clockwise about the drive shaft 52. Then, as shown in FIG. 5, the driven arm 54 and the pressing roller 57 rotate while pushing the cover plate 24 about the shaft 25 into the plate discharging container 22 against the urging force of the spring 26.

As shown in FIG. 5, the first base paper 13 is compressed and packed into the stencil discharge container 22 by the cover plate 24. When this packing operation is completed, the drive shaft 52 is rotated counterclockwise by the reverse rotation of the motor, and the driven arm 5 is rotated.
4. The pressing roller 57 and the like are returned to the state shown in FIG. 1, and the cover plate 24 is returned to a substantially horizontal state by the accumulated force of the spring 26. In this state, the second dock 60 is detected by the second sensor 61, the return of the driven arm 54 to the retracted position is detected, and the rotation of the drive shaft 52 by the drive motor is stopped.

If the above-described operation of discarding and collecting the stencil sheet 13 is repeated a plurality of times in the same manner, the maximum inclination angle of the cover plate 24 pressed by the pressing roller 57 decreases as shown in FIG. When the first dog 58 is detected by the first sensor 59, the base papers 13 to 1 are stored in the plate discharge container 22.
3 is detected to be full. A buzzer or the like is activated by this detection operation, and the worker is notified. For this reason,
The operator removes the stencil discharge container 22 from the support frame 21 by grasping the handle 22 a of the stencil discharge container 22. In this state, when the handle 24a of the cover plate 24 is gripped and the cover plate 24 is opened, the base paper 13 filled in the plate discharge container 22 is removed.
Can be taken out.

Next, the operation and effect of the plate discharging and collecting apparatus of the above embodiment will be listed together with the configuration. (1) In the above embodiment, the cover plate 2
4 was mounted so as to be tiltable around a shaft 25 against the urging force of a spring 26, and a cover plate pressing mechanism 51 was mounted above the support frame 21 independently of the cover plate 24. For this reason, the lid plate 24
The stencil sheet 13 is prevented from adhering to the
The lifting of the base paper 13 in the inside can be suppressed, and the collection operation can be reliably performed.

Further, when the stencil container 22 is full of stencil paper, the stencil discharge container 22 and the cover plate 24 can be detached from the support frame 21 independently, so that the stencil paper does not fall from the stencil discharge container 22. In addition, the disposal work can be performed smoothly.

(2) In the above embodiment, the driven roller 54
Is elastically supported on the drive shaft 52 by the urging force of the spring 55, so that the driven arm 54 and the pressing roller 57
Presses the cover plate 24 elastically, and when the foreign matter is caught or the first
It is possible to prevent the cover plate 24 from being damaged when the sensor 59 is abnormal.

(3) In the above embodiment, the outlet sides of the pair of upper and lower conveyor belts 42 and 43 of the transfer mechanism 30 for the base paper 13 enter the opening 22b of the plate discharge container 22 formed below the tip of the cover plate 24. A recess 24b is formed at the tip of the cover plate 24 to avoid interference with the conveyor belts 42 and 43. Therefore, the base paper can be smoothly transferred into the plate discharge container 22, and the container 22 can be easily attached to and detached from the support frame 21.

The above embodiment can be modified and embodied as follows. In the above embodiment, the lid plate 24 is rotatably supported.
It may be mounted so as to be able to reciprocate up and down.

The pressing roller 57 of the cover plate pressing mechanism 51 may be driven by a fluid pressure cylinder (not shown), or the driven arm 54 may be driven by a rotary electromagnetic solenoid.

As a means for detecting that the base paper 13 is full, a sensor for detecting the height position of the cover plate may be used. In the above-described embodiment, the present invention is embodied as a device for collecting the stencil 13 in a rotary stencil printing apparatus.

The technical ideas other than the claims that can be grasped from the embodiment will be described below. (1) The plate discharging and collecting device according to claim 2, wherein the urging means is a coil spring having an intermediate portion wound around the shaft, one end of which is locked to a plate discharging container, and the other end of which is locked to a cover plate. This recovery device has a simplified structure and can be easily manufactured and assembled.

(2) The plate recovery device according to claim 4, wherein the urging means is a coil spring having an intermediate portion wound around the drive shaft, one end of which is engaged with the drive arm, and the other end of which is engaged with the driven arm. . This recovery device also has a simplified structure and can be easily manufactured and assembled.

[0035]

As described above in detail, the present invention has an effect that the lifting of the base paper in the plate discharging container is suppressed, and the operation of discarding the base paper can be performed smoothly.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view illustrating an embodiment of an apparatus for collecting discarded base paper in a stencil printing apparatus.

FIG. 2 is a front sectional view of the base paper collecting apparatus of FIG. 1;

FIG. 3 is a partially cutaway perspective view showing a support frame and a transfer mechanism of base paper.

FIG. 4 is a perspective view showing a stencil discharging container and a cover plate for base paper.

FIG. 5 is a cross-sectional view showing a state in which the base paper is compressed in the plate discharging container by the cover plate.

FIG. 6 is a cross-sectional view showing a state in which the stencil sheet is full in the stencil discharge container.

[Explanation of symbols]

11: Plate discharging and collecting device, 12: Plate cylinder, 13: Base paper, 21 ...
Support frame, 21a, 21b ... side plate, 21c ... bottom plate,
21d: horizontal support plate, 22: plate discharging container, 22c: opening, 22d: cutout recess, 23: stopper, 24: lid plate,
24b: recess, 25: shaft, 26: coil spring as urging member, 30: base paper transport mechanism, 42, 43: belt, 5
DESCRIPTION OF REFERENCE NUMERALS 1: lid plate pressing mechanism, 52: drive shaft, 53: drive arm,
54: driven arm, 55: coil spring as urging means, 57: pressing roller, 58: first dog, 59: first sensor, 60: second dog, 61: second sensor.

Claims (7)

[Claims] 1. A support frame provided on a base paper discharge side, a plate discharge container detachably supported by the support frame and capable of storing a base paper, and provided at an upper opening of the plate discharge container so as to be openable and closable. A cover plate which is always kept closed by an urging member; a transfer mechanism for transferring the base paper from the outer peripheral surface of the plate cylinder into the plate discharge container; and a cover provided on the support frame side, and the cover A cover plate pressing mechanism capable of pressing the cover plate into the plate discharge container against the urging force of the urging means and compressing the base paper above the plate, wherein the plate discharge container is moved from the support frame together with the cover plate. A plate collecting device that is separably provided. 2. The plate discharging container according to claim 1, wherein a lid plate is rotatably supported by a shaft with respect to an upper opening of the plate discharging container, and the lid plate is elastically held at a position where the opening is closed by a biasing means. Plate removal collection device. 3. The plate discharging and collecting apparatus according to claim 1, wherein the cover plate pressing mechanism is configured to be able to elastically press the cover plate. 4. The device according to claim 3, wherein the cover plate pressing mechanism comprises: a drive shaft rotatably supported at a predetermined position on a support frame by an external drive source; a drive arm supported by the drive shaft; A driven arm rotatably supported on a drive shaft, biasing means interposed between the driven and driven arms, and a pressing roller supported at a tip end of the driven arm, A plate discharging and collecting device configured such that when the drive shaft is rotated in one direction, the pressing roller is elastically pressed against the upper surface of the lid plate via the driving arm, the urging means, and the driven arm. 5. The stencil transfer mechanism according to claim 1, wherein the stencil transfer mechanism is constituted by a plurality of pairs of conveyor belts, and the stencils are fed from an opening formed between an upper opening edge of the plate discharge container and a cover plate. Plate collecting device configured to be transported into the apparatus. 6. The plate discharging and collecting apparatus according to claim 5, wherein a plurality of concave portions are formed at a tip portion of the lid plate to avoid interference with a plurality of pairs of conveyor belts. 7. The support frame according to claim 4, wherein a first sensor is provided on the support frame, a first dock is provided on the driven arm corresponding to the first sensor, and a lid plate is provided by the driven arm. When the pressing operation is repeated and the position becomes the set position, it is detected that the first dock is full of the base paper in the stencil discharge container corresponding to the first sensor, and the second frame is provided on the support frame. Wherein the second dock attached to the drive shaft corresponds to the second sensor, and the standby position of the pressing roller is detected.