JPH0513776U - Plate discharge processing device - Google Patents

Abstract

(57) [Abstract] [Purpose] The original plate 23 discarded in the waste box 19 is sandwiched between the pressing body 21 and the waste box 19, and lifted up above the pressing body by the lifting operation of the pressing body 21. To prevent being caught. [Structure] The pressing body 21 moves up and down in the waste box 19. The original plate 23 is put into the waste box 19 through the outlet 3. A flat plate 31 is fixed to the lower surface of the pressing body 21 at one end on the discharge port 3 side. The other end of the flat plate 31 goes down,
And the pressing body 21 maintains a predetermined angle. The original plate 23 placed in the waste box 19 hits the lower surface of the flat plate 31 and is guided downward. During compression by the pressing body, the flat plate 31 and the pressing body 2
1 is in close contact.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a plate discharge processing device for compressing and discarding a sheet-shaped original plate. For example, the present invention can be used to compress and process used stencil paper discharged from a stencil printing machine.

[0002]

[Prior Art]

 FIG. 4 is a perspective view showing a stencil sheet discharging device provided in the stencil printing device. In the figure, reference numeral 1 denotes a stencil sheet storage box, and the stencil sheet storage box 1 has a stencil sheet inlet 2 on the front and a stencil sheet outlet 3 on one side.

A drive shaft 5 carrying a plurality of gears 4 and a rubber roller 6 are provided in the stencil sheet intake 2 of the stencil sheet storage box 1 in 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 rotationally driven in the counterclockwise direction in the figure by an electric motor (not shown) to remove the used stencil from the plate cylinder. The base paper S is carried into the stencil base paper storage box 1.

At the stencil sheet discharge port 3 of the stencil sheet storage box 1, a pair of metal rollers 7 and rubber rollers 8 are provided in a direction orthogonal 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 stored in the stencil sheet storage box 1 to the outside of the storage box.

At the bottom of the stencil sheet storage box 1, a plurality of metal driven feed rollers 10 are arranged at small intervals so as to be parallel to the metal roller 7 and the rubber roller 8. Each driven feed roller 10 is provided rotatably around its axis by each shaft 11.

A drive feed roller 14 is provided on the upper portion (ceiling portion) of the stencil sheet storage box 1 so as to be rotatable around its axis by a shaft 13 parallel to the shaft 11. It is designed to be driven to rotate around. The drive feed roller 14 has a semi-cylindrical shape, that is, a semicylindrical shape, in which approximately half 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 foamed synthetic resin. In the illustrated conventional example, the drive feed roller 14 is divided into two parts in the axial direction and has a space 16 in the central part in the axial direction. Then, the ceiling wall of the stencil sheet storage box 1 is provided with two openings 17 for receiving each of the divided drive feed rollers 14. A bridge 18 is provided between the two openings 17 and 17 by the ceiling wall left between the two openings 17 and 17 to prevent the stencil sheet from winding around the peripheral surface of the drive feed roller 14. It has become.

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 when the side where the peripheral portion is removed faces the driven feed roller 10. have. On the other hand, as shown in the drawing, when the remaining peripheral portion, that is, the elastic member 15 is in the rotation position facing the driven feed roller 10, the elastic member 15 press-engages the driven feed roller 10. It is supposed to do.

A waste box 19 extending below the stencil sheet discharge port 3 is connected and communicated with the stencil sheet discharge port 3.

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 the vertical direction in a corrugated manner and stored in the storage box 1 because its movement is restricted 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, so that the stencil sheet The paper S is carried into the stencil sheet storage box 1 without being obstructed by the drive feed roller 14, and a part of the paper S is inserted between the driven feed roller 10 and the drive feed roller 14.

When all of the stencil sheet S is carried into the stencil sheet containing box 1, the drive feed roller 14 is rotationally driven in the clockwise direction in the figure. As a result, the elastic member 15 of the drive feed roller 14 rotates while being pressed against the driven feed roller 10. The stencil sheet S between the driven feed roller 10 and the drive feed roller 14 is compressed into a superposed state, and is folded in the longitudinal direction, and the stencil sheet storage box 1 is discharged through the stencil sheet storage box 1 by frictional resistance with the elastic member 15. It is conveyed toward 3. The stencil sheet S that has been compressed and folded in a superposed state becomes relatively hard due to the folding and superposition, and is sandwiched between the metal roller 7 and the rubber roller 8 and discharged from the stencil sheet discharge port 3 into the waste box 19. It

The stencil sheet discharged into the waste box 19 by the stencil sheet stencil sheet ejecting apparatus described above has a considerably large volume although it is folded. Therefore, there is a problem that a large amount of discharged plates cannot be stored simply by dropping them into the waste box 19, and the waste box 19 becomes full early.

In order to solve the above-mentioned problems, the applicant of the present invention has proposed an original processing apparatus described in JP-A-2-175277 and JP-A-2-251480. These devices include a storage body into which a discarded original plate is loaded, a presser body of the original plate which is provided in the storage body so as to be able to move up and down, and the pressing portion of the original plate has a small area when rising and a large area when descending. An apparatus that comprises a lifting drive means and compresses an original that has been discarded and thrown into the container by a pressing body that is driven up and down in the container to detect that the container 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 in order to compress the original plate in the storage body for a predetermined time.

[0013]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention As described above, the stencil sheet is discharged from the stencil sheet containing box by being sandwiched between the pair of rollers of the metal roller 7 and the rubber roller 8. This stencil sheet is in the storage box and is folded and compressed in the stacking state, and it is further compressed and polymerized by the pair of rollers and stopped above the discharge port in the space below the pressing body. Discharge to.

However, the base paper folded in the storage box is in an irregularly superposed state, and in a state of being irregularly curved upward or downward due to the pressing force of the metal roller 7 and the rubber roller 8. May be discharged. For this reason, as shown in FIG. 5, when the base paper 23 sent out by the pair of rollers 7 and 8 is curved upward, depending on how it enters, the waste paper on the opposite side of the stencil base paper discharge port 3 is discharged. The discarded base paper 23 enters above the pressing body 21 through the gap between the wall of the box 19 and the pressing body 21.

In such a case, when the pressing body 21 descends in the next step, the raw paper 23 is sandwiched in the gap between the pressing body 21 and the wall of the waste box 19 and compressed to the waste box 19 side. Then, they are not pushed down and remain on the wall surface of the waste box 19.

When the pressing body 21 rises in the next operation, the base paper 23 remaining above the pressing body 21 comes into contact with the side surfaces and corners of the pressing body 21 and is caught, and is scraped up. I will end up. The scraped up base paper 23 accumulates in the space above the upper limit stop position of the pressing body 21, and the increase in the amount of accumulation hinders the upward drive of the pressing body 21, and eventually destroys the pressing body 21 and the surrounding components. Resulting in.

It is an object of the present invention to provide a plate discharge processing device that eliminates these factors for picking up the base paper and enables continuous normal operation of the pressing body.

[0018]

[Means for Solving the Problems]

 The plate discharge processing apparatus of the present invention is a plate discharge processing apparatus having a container into which a discarded original plate is loaded and a pressing body that is moved up and down in the container, and is provided at one end of the lower surface of the pressing body with respect to the lower surface. It is characterized by comprising a flat plate which is attached at an angle and which is brought into close contact with the lower surface when the original plate is compressed by lowering the pressing body and returns to the predetermined angle when the pressing body is raised.

[0019]

[Action]

 Since the original plate introduced into the storage body contacts a flat plate attached to the lower surface of the pressing body at a predetermined angle and is guided downward, it is not caught between the storage body and the pressing body. When the pressing body descends, the flat plate comes into close contact with the lower surface of the pressing body to compress the original plate. When the pressing body rises, the pressing body and the flat plate gradually separate as the pressing body rises until a predetermined angle is reached, so the original plate is completely compressed and does not adhere to the flat plate.

[0020]

【Example】

 The original plate processing apparatus of this embodiment is an apparatus provided in a stencil printing apparatus. This device is configured so that the original can be conveyed reliably during the process in which the original is ejected from a pair of rollers and finally compressed and stored in the original container. Used to compress the used stencil paper discharged from the equipment and store it compactly.

The overall structure of the discharging device in this embodiment is almost the same as that described in “Prior Art” with reference to FIG. 4, and the description of that part is omitted. In FIG. 1, a discharge port 3 for stencil sheet is opened in the printer body 20 as shown in the figure, and a pair of metal roller 7 and rubber roller 8 are provided inside the body facing the discharge port 3. A waste box 19, which is a container for the original plate, is provided on the outer side of the main body 20, and has a substantially rectangular cross section. The dump box 19 is provided with a pressing body 21 which is substantially rectangular and can move up and down like the dump 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 original box is full in the waste box 19.

Reference numeral 23 in the figure denotes an original plate discharged from the original plate storage box 1 into a waste box 19 in a superposed state compressed between a pair of metal rollers 7 and rubber rollers 8. The pressing body 21 in FIG. 1 (a) is in the upper stop position, and the pressing body 21 starts to descend in the next step as shown in FIG. 1 (b), and the pressing body 21 is indicated by a chain line in FIG. 21 pushes the original plate downward and puts it in 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 discharge port 3 side and is attached to the lower surface of the pressing body 21 at a predetermined angle θ. ..

The flat plate 31 is attached to the pressing body 21 at an angle θ on the pressure surface of the pressing body 21 with the discharge port 3 side being the upper position and the other end being the lower end. The original half 23 discharged from the rollers 7 and 8 comes into contact with the lower half. Therefore, the leading end portion of the original plate 23 discharged from the rollers 7 and 8 comes into contact with the substantially central portion of the flat plate 31 and advances downward along the angled flat plate 31. Therefore, the original plate 23 is not sandwiched between the pressing body 21 and the waste box 19 even if the pressing body 21 descends.

The flat plate 31 may be made of metal or non-metal, and the pressure surface of the flat plate 31 may be provided with one or a plurality of protrusions 32 as necessary to form a projection and a discharge with the flat plate 31. The peelability of the original plate 24 can be improved. Further, when the flat plate 31 is attached to the pressing body 21 at an angle, the leading end of the base paper discharged from the storage box to the waste box 19 by the pair of rollers 7 and 8 is moved downward along the flat plate 31. For the purpose of guiding, even if the leading edge of the base paper is curved irregularly upward, it can be guided downward. The flat plate 31 can be brought into close contact with the pressure surface of the pressing body 21 when the original plate 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 23 discharged from the pair of rollers 7 and 8 is discharged in a state of being curved in the up, down, left, and right directions as described above. The front end portion of the base paper 23 discharged from the pair of rollers 7 and 8 hits a plurality of protrusions 32 provided on the flat plate 31 at the substantially central portion of the flat plate 31 and advances downward along the angle of the flat plate 31.

The flat plate 31 is made of a metal plate or a non-metal plate having elasticity. When the original plate is compressed when the pressing body 21 descends, the flat plate 31 is sandwiched between the pressing body 21 and the discharge original plate 24. As a result, it comes into close contact with the pressure plate on the lower surface of the pressing body 21. If the projection 32 is brought into close contact with the surface of the flat plate 31 with a predetermined compression force, the discharge master plate 24 will be more reliably compressed, and at the time of raising the pressing body 21, the peeling property from the discharge master plate 24 will be improved. Get better.

After that, when the pressing body 21 starts to move upward, the flat plate 31 first starts to separate from the original plate in order from the mounting end faces of the pressing body 21 and the flat plate 31, and finally the other end of the flat plate 31 separates, so that the pressing body 21 is released. Going up. That is, the other end of the flat plate 31 starts to rise while pressing the discharge original plate 24, and the flat plate 31 returns to a predetermined angle by its 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 remains in the lower portion of the waste box 19.

FIG. 1A is a diagram in which one flat plate 31 is attached, but the original plate 23 discharged from the discharge port 3 has a very rigid state or the flat plate is in an extremely superposed state. In the case where the action such as pushing up works, two or three flat plates may be stacked and attached to properly guide the discharge original plate downward. Further, as shown in FIG. 1B, since the pressing body 21 is inclined when rising, the flat plate 31 needs to be shorter than the pressing body 21.

FIG. 2 shows a second embodiment in which the flat plate itself is made of an inelastic body for enhancing durability, and the pressing body 41 and the flat plate 42 are jointed at a fulcrum 36 so as to be openable and closable. 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. Reference numeral 39 in the drawing denotes a receiving boss provided on the upper surface of the flat plate 42 at the lower end of the coil spring 35. Reference numeral 35 in the figure denotes a coil spring, which is attached between the receiving portion 38 and the receiving boss 39 through a hole of the pressing plate 41. The elastic force of the coil spring 35 constantly urges the pressing body 41 and the flat plate 42 in the opening direction. The stopper 37 is fixed to the flat plate 42, and the upper part through which the pressing body 41 is inserted is bent into an L shape, and when the spring pressure of the coil spring 35 works, the stopper 37 and the flat plate 42 are stopped at a predetermined angle. It is like this.

When the pressing body 41 is in the upper position, the flat plate 42 guides the discharge original plate downward as in FIG. When the pressing body 41 descends, the coil spring 35 is compressed, and the flat plate 42 comes into close contact with the pressure plate of the pressing body 41 to compress the discharge original plate. At the start of the ascending of the pressing body 41, one end of the flat plate 42 rises with a slight time delay from the rise on the fulcrum 36 side while pressing the original plate by the pressure of the coil spring 35, and separates smoothly from the discharge original plate 24. ing.

FIG. 3 shows a third embodiment in which a non-elastic material is used for the flat plate 52, and the pressing body 51 and the flat plate 52 are jointed by a shaft of a fulcrum 45 so as to be openable and closable. The disc 43 provided on the pressing body 51 is rotated by the starting force of a motor (not shown) coaxial with the disc. A link 44 is rotatably attached to one end of the disc 43, and the other end of the link 44 is rotatably connected to a rising portion of the flat plate 52. That is, the opening and closing of the flat plate 52 can be performed via the disc 43 and the link 44 by starting the motor.

When the original plate is discharged, the pressing body 51 and the flat plate 52 are at the upper standby position as shown in FIG. 3, the flat plate 52 is made to stand by at a predetermined angle, and the discharged original plate is shown in FIG. 1 (a). Proceed downwards.

Next, while the pressing body 51 is descending, the flat plate 52 is rotated so as to come into close contact with the pressing body 51 at a substantially intermediate position by the activation of the motor. Then, in that state, the discharge original plate 24 is compressed downward.

Next, when the pressing body 51 starts to move up, the fulcrum 45 side of the flat plate 52 starts to move up together with the pressing body 51, and the other end side of the flat plate 52 keeps the discharge original plate 24 held down. .. 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. The same effects as those of the first and second embodiments can be obtained by this embodiment as well.

[0036]

[Effect of the device]

 According to the plate discharge processing apparatus of the present invention, the flat plate is attached to the lower surface of the pressing body that compresses the original plate in the storage body at a predetermined angle, and the original plate entering the storage body is guided downward by the flat plate. The original plate is prevented from being pinched or lifted by the body, and the original plate does not accumulate above the pressing body to prevent the upward movement of the pressing body. This made it possible to reliably compress the original version.

[Brief description of 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 discharge compression apparatus and its problems.

[Explanation of symbols]

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

Claims (1)

[Scope of utility model registration request] 1. In a plate discharge processing apparatus having a storage body into which a discarded original plate is loaded and a pressing body for moving up and down in the storage body, one end of the lower surface of the pressing body forms a predetermined angle with respect to the lower surface. A plate discharge processing apparatus comprising: a flat plate which is attached in such a manner as to be brought into close contact with the lower surface when the original plate is compressed by lowering the pressing body and which returns to the predetermined angle when the pressing body is raised.