JP2573882Y2 - Plate discharging device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plate discharging apparatus for compressing and discarding an original sheet. For example, the present invention can be used to compress and process used stencil paper discharged from a stencil printing machine.

[0002]

2. Description of the Related Art FIG. 4 is a perspective view showing a stencil sheet discharging device provided in a stencil printing apparatus. In the figure, 1
Denotes a stencil sheet storage box, and the stencil sheet storage box 1
Has a stencil paper inlet 2 on the front and a stencil paper outlet 3 on one side.

A stencil paper inlet 2 of the stencil storage box 1 is provided with a drive shaft 5 carrying a plurality of gears 4 and a rubber roller 6, each being parallel to the axis of a plate cylinder (not shown). The gear 4 and the rubber roller 6 are engaged with each other, and the drive shaft 5 is rotated counterclockwise in the figure by an electric motor (not shown), so that the used stencil removed from the plate cylinder is used. The base paper S is carried into the stencil base paper storage box 1.

A stencil sheet discharge port 3 of the stencil sheet storage box 1 is provided with a pair of metal rollers 7 and a rubber roller 8 in a direction perpendicular to the axis of the plate cylinder. The metal roller 7 and the rubber roller 8 are engaged with each other to discharge the stencil sheet accommodated in the stencil accommodation box 1 out of the accommodation box.

[0005] At the bottom of the stencil box 1, a plurality of metal driven feed rollers 10 are arranged at a small interval from each other so as to be parallel to the metal roller 7 and the rubber roller 8. Each driven feed roller 10 is provided so as to be rotatable around an axis by each shaft 11.

A drive feed roller 14 is provided at the upper portion (ceiling portion) of the stencil storage box 1 so as to be rotatable around its axis by a shaft 13 parallel to the shaft 11, and is rotated clockwise by a motor (not shown). It is designed to be rotationally driven in the direction. The driving feed roller 14 has a semi-cylindrical shape, that is, a semi-cylindrical shape, in which almost half of the peripheral portion is removed. The remaining peripheral surface of the semi-cylindrical portion is made of an elastic member 15 having elasticity and a high surface friction coefficient, such as sponge or foam synthetic resin. This drive feed roller 1
Reference numeral 4 in the illustrated conventional example is divided into two parts in the axial direction and has an interval 16 at the central part in the axial direction. And
On the ceiling wall of the stencil sheet storage box 1, two openings 17 for receiving each of the divided drive feed rollers 14 are provided. A bridge 18 is provided between the two openings 17 and 17 by the ceiling wall remaining between the two openings 17 so as to prevent the stencil sheet from being wound around the peripheral surface of the drive feed roller 14. Has become.

When the side from which the peripheral portion has been removed is at a rotational position facing the driven feed roller 10, the drive feed roller 14 has a gap for receiving the stencil sheet between the driven feed roller 10 and the driven feed roller 10 in the stencil sheet storage box 1. have. On the other hand, as shown in FIG.
The elastic member 15 presses and engages the driven feed roller 10 when the rotary member 5 is at the rotation position facing the driven feed roller 10.

The stencil sheet discharge port 3 is connected to a discharge box 19 extending downward therefrom.

In the above configuration, the stencil sheet S removed from the plate cylinder (not shown) is carried into the stencil sheet storage box 1 by the gear 4 and the rubber roller 6. The stencil sheet S carried into the stencil sheet storage box 1 is bent in a vertical direction into a wavy shape and stored in the storage box 1 by being restricted in movement by the wall surface of the storage box. At this time, the drive feed roller 14 faces the driven feed roller 10 on the side where the peripheral portion is removed, and forms a gap for receiving the stencil sheet S between the driven feed roller 10 and the driven feed roller 10. The sheet is carried into the stencil sheet storage box 1 without being hindered by the drive feed roller 14, and a part thereof is driven by the driven feed roller 10.
And the drive feed roller 14.

When all of the stencil sheet S is carried into the stencil sheet storage box 1, the drive feed roller 14 is driven to rotate clockwise in the figure. Thereby, the drive feed roller 14
The elastic member 15 rotates while being pressed by the driven feed roller 10. Driven feed roller 10 and drive feed roller 14
The stencil sheet S is compressed and polymerized, and is conveyed in the stencil sheet accommodating box 1 to the stencil sheet discharge port 3 by frictional resistance with the elastic member 15 while being folded in the vertical direction. The stencil sheet S that has been compressed and folded in the superposed state becomes relatively hard due to the folding and polymerization, and is discharged from the stencil sheet discharge port 3 into the waste box 19 through the metal roller 7 and the rubber roller 8. You.

The stencil discharged into the discharge box 19 by the stencil discharge device described above has a considerably large bulk although it is folded. Accordingly, a large amount of the discharged plate cannot be stored simply by dropping it into the waste box 19, and the waste box 19 becomes full at an early stage.

In order to solve the above-mentioned problem, the present applicant has disclosed Japanese Patent Application Laid-Open Nos. Hei 2-175277 and Hei 2-25414.
No. 80 has been proposed.
These devices are a container into which the discarded original is put, and a pressing member of the original, which is provided so as to be able to move up and down in the container, and the area of the pressing portion is small when ascending and large when descending.
An apparatus for raising and lowering the pressing body, and for compressing the original discarded in the housing by a pressing body that is driven up and down in the housing, wherein the housing is full of the original. And a pressing body control means for driving the pressing body in response to a detection signal from the detecting means for compressing the original in the housing for a predetermined time.

[0013]

As described above, the stencil sheet is discharged from the stencil container box into the container by being sandwiched between the metal roller 7 and the rubber roller 8. This stencil sheet is already folded and compressed in the storage box and is in a polymerized state, and is further compressed and polymerized by the pair of rollers into a space below the pressing body stopped above the discharge port. Discharge.

However, the base paper folded in the storage box is in an irregular polymerization state, and the metal roller 7 and the rubber roller 8
May be discharged in a state of being irregularly curved upward or downward by receiving the pressing force. For this reason, the base paper 2 sent out by the pair of rollers 7 and 8 as shown in FIG.
If 3 is curved upward, depending on its approach,
The discarded stencil paper 23 is removed from the pressing body 2 through the gap between the pressing body 21 and the wall of the waste box 19 on the opposite side of the stencil paper discharging port 3.
It gets into the upper part of 1.

In such a case, in the next step, the pressing body 2
When 1 is lowered, the base paper 23 is sandwiched by the gap between the pressing body 21 and the wall of the waste box 19 and is compressed toward the waste box 19, and remains on the wall of the waste box 19 without being pushed down. Resulting in.

When the pressing body 21 rises in the next operation, the base paper 23 remaining above the pressing body 21 is removed.
Is hooked in contact with the side and corners of the device, and is lifted upward. The scraped base paper 23 is a pressing body 21.
Accumulates in the space above the upper limit stop position of the pressing member 21, and as a result, the ascent of the pressing member 21 is hindered due to the increase in the amount of accumulation.
And the surrounding components are destroyed.

An object of the present invention is to provide a plate discharging apparatus which eliminates these factors for scraping up the base paper and enables continuous normal operation of the pressing body.

[0018]

Plate discharge processing apparatus of the Summary of the Invention The present invention, in the stencil discharge apparatus having a pressing member to perform raising and lowering drive in the housing body and the housing body which discarded original is turned, the conveying direction of the original So that the downstream side is lower
Attached to a predetermined angle with respect to the lower surface of the pressing body, that it comprises a configured flat so as to return to the predetermined angle at the time of pressing body increases with the time of the original compressed by the pressing member downward in close contact with the lower surface It is characterized by.

[0019]

The original plate introduced into the housing comes into contact with the flat plate attached to the lower surface of the pressing body at a predetermined angle and is guided downward, so that it is not trapped between the housing and the pressing body. . When the pressing body descends, the flat plate comes into close contact with the lower surface of the pressing body and compresses the original. When the pressing body rises, the pressing body and the flat plate gradually separate from each other until a predetermined angle is reached as the pressing body rises, so that the original plate is completely compressed and does not adhere to the flat plate.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The stencil processing apparatus of this embodiment is an apparatus provided in a stencil printing apparatus. This apparatus is configured so that the original can be reliably transported in the process of discharging the original from a pair of rollers and finally compressing and storing it in the original storage body. It is used to compress used stencil paper discharged from the apparatus and store it compactly.

The overall configuration of the discharge device in this embodiment is as follows.
This is almost the same as that described in “Prior Art” with reference to FIG. 4, and a description of that part will be omitted. In FIG. 1, a discharge port 3 of the stencil sheet is opened in the printing apparatus main body 20 as shown in the figure, and a pair of metal rollers 7 and a rubber roller 8 are provided inside the main body facing the discharge port 3. On the outside of the main body 20, there is provided a discharge box 19, which is a storage body for the original plate, and has a substantially square cross section. A press body 21 having a substantially rectangular shape similar to that of the waste box 19 and capable of moving up and down is provided in the waste box 19. The pressing body 21 has a lower surface serving as a pressure plate surface for compressing and pressing the original plate, and has a built-in detection device for detecting that the discharge plate 19 is full of the original plate.

In the figure, reference numeral 23 denotes an original which is discharged from the original storage box 1 to a waste box 19 in a state of being compressed and superposed between a pair of metal rollers 7 and rubber rollers 8. The pressing body 21 in FIG. 1A is at the upper stop position, and as shown in FIG. 1B, the pressing body 21 starts descending in the next step, and as shown by a chain line in FIG. 21 presses down the original plate to bring it into a compressed state.

As shown in FIG. 1, a flat plate 31 is fixed to the lower surface of the pressing body 21 at one end on the side of the discharge port 3 and is attached to the lower surface of the pressing body 21 at a predetermined angle θ. .

The flat plate 31 is mounted on the pressing body 21 at an angle θ on the pressure surface of the pressing body 21 with the discharge port 3 at the upper position and the other end at the lower end. The half is configured so that the original 23 discharged from the rollers 7 and 8 comes into contact with the original. Therefore, the rollers 7,
The leading end of the original plate 23 discharged from the plate 8 comes into contact with the substantially central portion of the flat plate 31 and proceeds downward along the flat plate 31 at an angle. Therefore, even if the pressing body 21 descends, the original 23 is not caught in the gap between the pressing body 21 and the waste box 19.

The flat plate 31 may be made of either metal or non-metal. The flat surface of the flat plate 31 may be provided with one or a plurality of projections 32 as necessary to make the flat surface 31 uneven. Can be improved.
In addition, mounting the flat plate 31 at a certain angle with respect to the pressing body 21 requires a pair of rollers 7 and 8 from the housing box.
The leading end of the base paper discharged into the waste box 19 by the
The purpose is to guide the base paper downward along 1 so that even the leading end of the base paper that is irregularly curved upward can be guided downward. The flat plate 31 is used to press the pressing body 21 when the original is pressed.
, And returns to the original angle when the pressing body 21 is raised.

Next, the operation of the above configuration will be described. First, the original plate 23 discharged from the pair of rollers 7 and 8 is discharged in a state of being curved in the vertical and horizontal directions as described above. The leading end portion of the base paper 23 discharged from the pair of rollers 7 and 8 has a substantially flat central portion of the flat plate 31.
And a plurality of the projections 32 provided on the flat plate 31 and travels downward along the angle of the flat plate 31.

The flat plate 31 is made of an elastic metal plate or a non-metal plate. When the original is compressed when the pressing body 21 is lowered, the flat plate 31 is sandwiched between the pressing body 21 and the discharge original 24. Thus, the pressure plate 21 comes into close contact with the pressure plate on the lower surface of the pressing body 21. If the projections 32 are brought into close contact with the surface of the flat plate 31 with a predetermined compressive force, the discharged original 24
Is more reliable, and the releasability from the discharge master 24 is improved when the pressing body 21 is raised.

Thereafter, when the pressing body 21 starts to ascend, the flat plate 31 starts to separate from the original plate sequentially from the mounting end face of the pressing body 21 and the flat plate 31, and finally the other end of the flat plate 31 separates, and the pressing body 21 rises. To go. That is, the other end of the flat plate 31 starts to rise while pressing the discharge master 24, and the flat plate 31 returns to a predetermined angle by its own elasticity as the pressing body 21 rises. As a result, the discharged original plate 24 is completely compressed without adhering to the flat plate 31 and stays at the lower portion of the discharge box 19.

FIG. 1A is a view in which one flat plate 31 is attached, and the original plate 23 discharged from the discharge port 3 is used.
If the state is very rigid or if an action such as pushing up the flat plate in an extremely superimposed state acts,
It is also possible to mount three sheets on top of each other and appropriately guide the discharged master downward. Further, as shown in FIG. 1B, since the pressing body 21 is inclined when ascending, the pressing body 21 is inclined.
Needs to be shorter than the pressing body 21.

FIG. 2 shows a second embodiment in which the flat plate itself is formed of an inelastic body for enhancing the durability and the like, and the pressing body 41 and the flat plate 42 are jointed openably and closably at a fulcrum 36. In the figure, reference numeral 38 denotes a receiving portion provided on the upper surface of the pressing body 41, and a hole is provided in a portion of the pressing body 41 facing the receiving portion 38. In the figure, reference numeral 39 denotes a receiving boss at the lower end of the coil spring 35 provided on the upper surface of the flat plate 42. In the figure, reference numeral 35 denotes a coil spring, which receives the receiving portion 3 through a hole of the pressing plate 41.
8 and the receiving boss 39. Due to the elastic force of the coil spring 35, the pressing body 41 and the flat plate 42
Is always biased to open. The stopper 37 is fixed to the flat plate 42, and the upper portion through which the pressing body 41 is inserted is bent into an L shape so that the pressing body 41 and the flat plate 42 are stopped at a predetermined angle when the spring pressure of the coil spring 35 acts. Has become.

When the pressing body 41 is in the upper position, the flat plate 42
Guides the discharged master downward as in FIG. Pressing body 41
Is lowered, the coil spring 35 is compressed and the flat plate 4
Numeral 2 comes into close contact with the pressure plate of the pressing body 41 and compresses the discharged master. When the pressing body 41 starts to rise, one end of the flat plate 42 rises with a slight delay in time from the rise on the fulcrum 36 side while holding the original plate by the pressure of the coil spring 35, and is smoothly separated from the discharged original plate 24. .

FIG. 3 shows a third example in which an inelastic material is used for the flat plate 52.
In this embodiment, the pressing body 51 and the flat plate 52 are jointed in a freely openable and closable manner with a fulcrum 45 axis. Pressing body 51
The disk 43 provided above is rotated by a starting force of a motor (not shown) coaxial with the disk. A link 44 is attached to one end of the disk 43 so as to be freely rotatable.
The other end of 4 is rotatably connected to the rising portion of the flat plate 52. That is, opening and closing of the flat plate 52 can be performed via the disk 43 and the link 44 by starting the motor.

At the time of discharging the master, as shown in FIG.
And the flat plate 52 are in the upper standby position, and the flat plate 52 is made to wait at a predetermined angle, and the discharged master is placed in the state shown in FIG.
It is guided downward like.

Next, during the downward movement of the pressing body 51, the flat plate 52 rotates so as to come into close contact with the pressing body 51 at a substantially intermediate position by the activation of the motor. Next, in this state, the discharged original plate 24 is compressed downward.

Next, at the start of the lifting of the pressing body 51,
The fulcrum 45 side of the flat plate 52 starts to rise together with the pressing body 51, and the other end of the flat plate 52 keeps the state where the discharged original plate 24 is suppressed. That is, the pressing body 51 rises while the angle between the pressing body 51 and the flat plate 52 gradually opens to a predetermined angle. According to this embodiment, the same effects as those of the first and second embodiments can be obtained.

[0036]

According to the plate discharging apparatus of the present invention, a flat plate is attached at a predetermined angle to the lower surface of the pressing body for compressing the original plate in the housing, and the original plate entering the housing is guided downward by the flat plate. This prevents the pressing body from being caught or lifted by the pressing body, and prevents the master from accumulating above the pressing body and hindering the upward movement of the pressing body. As a result, the original plate can be reliably compressed.

[Brief description of the drawings]

FIG. 1 is a sectional view of a first embodiment.

FIG. 2 is a sectional view of a second embodiment.

FIG. 3 is a sectional view of a third embodiment.

FIG. 4 is a perspective view of a stencil sheet discharging device.

FIG. 5 is a cross-sectional view showing a conventional plate discharging compression device and its problems.

[Explanation of symbols]

 19 Discharge box 21, 41, 51 as storage body Pressing body 23 Original 24 Discharge original 31, 42, 52 Flat plate

Claims (1)

(57) [Scope of request for utility model registration] 1. A plate discharge processing apparatus having a storage body into which a discarded original is put and a pressing body that moves up and down in the storage, wherein the downstream side in the transport direction of the original is low.
A flat plate attached to the lower surface of the pressing body at a predetermined angle so as to be in close contact with the lower surface when the original plate is compressed by the lowering of the pressing body and to return to the predetermined angle when the pressing body is raised. A plate discharge processing device characterized in that: