JPH03292178A - Stencil printing press - Google Patents

Abstract

PURPOSE:To reduce a dead space generated by situating a stencil printing press by a method wherein printing paper is depressed on a plate cylinder at the lower surface at the time of paper feeding, printing ink is transferred to the printing paper, and the paper is reversed by a paper reversing means and successively stacked on a position downward of a paper supply means with the printed surface disposed upward. CONSTITUTION:A pressure roller 11 is driven with a plate cylinder 3 in synchronism with the rotation of the plate cylinder 3. The pressure roller 11 is provided separatably from the plate cylinder 3 so as to be brought into pressure contact with just a printing area, i.e. so as not to be brought into contact with a clamper 21 or the like provided on a non-printing area of the plate cylinder 3. In addition, the pressure roller 11 is provided so as to depress the lower surface of the printing paper 4 at the time of paper feeding on the plate cylinder 3. The printed paper 4 is fed rightward by a paper discharge conveyor 23 and staked on a paper stacking mount 24 with the printed surface disposed upward. As a result, the printing paper 4 fed from a paper supply mount 5 is reversed to be stacked on the paper stacking mount 24.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a so-called front-operated stencil printing device in which printing paper can be supplied and taken out from the side where the operator is located.

(b) Conventional technology It is not necessary to give specific examples in the conventional stencil printing device.
If the paper feed tray or paper cassette is installed on the right side of the device when viewed from the operator's side, and the paper output tray is installed on the opposite left side, or the mounting positions of the paper feed tray and paper output tray are reversed from the above. It had become.

Further, the paper feed cassette and the paper ejection table are configured to be inserted into and removed from the main body of the apparatus in the left-right direction when viewed from the operating side.

In this way, when using a stencil printing device, the paper feed cassette and paper output tray protrude from the left and right sides of the device body, so space is required to take into consideration the protruding dimensions and the work of inserting and removing the paper feed cassette and paper output tray. The installation space for the stencil printing apparatus requires an area approximately three times wider than the width of the apparatus body in the left-right direction.

(c) Problems to be Solved by the Invention As mentioned above, in the conventional technology, when using a stencil printing device, a much larger installation area than the vertical projected area of the device itself was required; Nowadays, the cost of renting office space and office space is soaring, and the dead space created by installing a stencil printing machine is extremely uneconomical.

The present invention has been made in view of the problems of the conventional technology, and aims to realize a stencil printing device that can substantially reduce the installation area by providing paper feeding means and paper ejection means above and below. It is something.

(d) Means for Solving the Problems The present invention provides a printing paper that is pressed into contact with a printing cylinder, on which printing ink is stored and a stencil paper after stencil making is wrapped around the outer periphery. In a stencil printing device that prints, there is a paper feeding means in which printing paper is stacked and stored, and a paper pressure contact in which the lower surface of the printing paper fed by the paper feeding means is pressed against the plate cylinder when the paper is fed. means and
A paper mounting means for mounting the printing paper after printing in a posture with the printing surface facing upward is sequentially arranged, and rotation of the plate cylinder l1l
The L line extends in a direction parallel to the side surface of the apparatus main body on the operating side, and the paper loading means is located below the paper feeding means.

(E) Function In the present invention, the printing paper fed by the paper feeding means is pressed against the printing cylinder on the side that becomes the bottom surface when the paper is fed, so that the printing ink is transferred, and then the printing side becomes the top surface. Then, the sheets are sequentially placed below the sheet feeding means.

(v) Embodiment Figure 1 is an internal 11N diagram showing an embodiment of the present invention.
The figure is an internal configuration diagram showing the state in which the plate cylinder etc. are pulled out to the operation side, Figure 3 is an internal configuration diagram showing the state in which the paper loading means is pulled out to the operation side, Figure 4 is a perspective view, and Figure 5 is another diagram. FIG. 3 is an internal configuration diagram showing a state in which the plate cylinder and the like of the embodiment are pulled out to the operation side.

In these figures, l is the main body of the device, and inside it, on the back side (left side in the figure) when viewed from the operating side C (right side in the figure), there is a pair of support shafts 2 whose ends face each other. is inserted in the horizontal direction and in a direction parallel to the side surface C on the operation side so that it can be inserted and removed freely,
A plate cylinder 3 made of a cylinder having a shape similar to a cylinder is rotatably mounted on the support shaft 2. The plate cylinder 3 is rotated by being kicked by a pin at one end, and the other end is rotatably attached to a fixed support shaft 2, and a drive motor drives the cylinder to rotate counterclockwise. (not shown).

The plate cylinder 3 is made of a base made of metal or plastic formed into a net shape with many small holes perforated in the peripheral side wall, and silk, cotton, synthetic fiber, etc. wrapped around the outer peripheral surface of the base. This is a well-known method constructed by a formed cloth screen.

A paper feed tray 5 on which printing paper 4 is loaded is provided at the upper front side (upper right in the figure) of the plate cylinder 3 when viewed from the operation side side C, with the rear side inclined downward. There is. A transparent lid 6 is attached to the upper part of the paper feed tray 5 so as to be openable and closable in the vertical direction.

Above the downstream edge of the paper feed table 5 along the feeding direction of the print paper 4, unprinted printing paper 4 stacked on the paper feed table 5 is separated one by one. A paper feeding roller 7 is provided for feeding toward the printing section (the left side of the plate cylinder 3), and a paper feeding roller 7 is provided downstream (lower left side) of the paper feeding roller 7. A pair of register rollers 8 and 9 are pressed against each other for once stopping the printing paper 4 fed by the roller 7 and then feeding it again at the appropriate timing.

Further, the paper feed tray 5 includes the paper feed roller 7 and the lid 6.
and a rotating shaft 10 extending horizontally on the downstream side thereof.
It is configured to be able to rotate upward (counterclockwise) around .

On the downstream side of the register roller pair 8.9, the printing paper 4 fed by the register roller pair 8.9 is placed on the left side of the plate cylinder 3 in the printing area of the plate cylinder 3 (where the stencil sheet is wrapped). A pressure roller 11 is provided to press the area). The pressure roller 11 is driven by the plate cylinder 3, and in synchronization with the rotation of the plate cylinder 3, is pressed only on the printing area thereof, that is, in contact with the clamper 21 etc. provided in the non-printing area of the plate cylinder 3. It is provided so as to be able to move toward and away from the plate cylinder 3 so as to prevent it from happening.

Note that the pressure roller 11 is provided so as to press the lower surface of the printing paper 4 against the plate cylinder 3 during paper feeding.

A reel 12 is rotatably mounted below the paper feed table, and a band-shaped stencil paper 13 is wound around the reel 12 in a roll. This stencil paper 13 is a well-known one in which a heat-shrinkable film and a porous thin film are laminated.

On the downstream side of the reel 12 along the transport direction of the stencil paper 13 (to the left in FIG. 1), there is a tension roller 1.
4 is rotatably provided, and further downstream of this tension roller 14, a direction parallel to the extending direction of the support shaft 2 of the plate cylinder 3 is provided for punching and forming a desired calligraphy image on the stencil paper 13. A thermal head 15 extending from below is provided, and a platen roller 16
is lightly pressed.

A cutter device 17 having a rotating circular blade for cutting the stencil paper 13 into a predetermined length dimension (for example, the longitudinal dimension of B4 size) is provided downstream of the thermal head 15. A pair of paper transport rollers 18 and 19 for transporting the stencil paper 13 to the mounting position (top) of the plate cylinder 3 is provided on the downstream side (upper left side).

On the downstream side (left side) of the pair of paper conveying rollers 18 and 19, a clamper 21 which is swingably attached to the non-printing area of the plate cylinder 3 clamps the downstream edge of the stencil paper 13. A base paper supply roller 20 is pressed onto a guide plate 22 for conveying the base paper to a position.

Below the pressure roller 11, there is a paper discharge conveyor 2 for conveying the printed paper 4 to the front side (right side).
3 is provided on the downstream side of the paper discharge conveyor 23 (
A paper mounting table 24 on which the printing paper 4 conveyed by the paper discharge conveyor 23 is placed is provided at the lower right side.

The paper mounting table 24 is equipped with a paper mounting plate 25 and a lowering means (not shown) that gradually lowers the paper mounting plate 25, and when printing starts, the paper mounting plate 25 is at its highest position. It is located near the top, and operates to gradually descend as the number of prints increases. The configuration is such that a maximum of about 3,000 sheets of printing paper 4 after zero printing are placed on the paper mounting plate 25 with the paper mounting plate 25 located at the lowest position.

The printed printing paper 4 is conveyed to the right by the paper discharge conveyor 23 and placed on the paper mounting table 24 with the printed surface facing upward. Therefore, as a result, the printing paper 4 fed from the paper feed tray 5 is reversed and placed on the paper tray 24.

Note that wheels 26 and 27 are attached to the lower surface of the paper mounting table 24 so that the paper mounting table 24 can be pulled out toward the front when viewed from the operating side. Note that the back side (left side) is a normal wheel, and the front side (right side) is a swing wheel.

Further, a lid body 28 is attached to the front side of the paper loading table 24 so as to be openable and closable, and if the paper loading table 24 is pulled out to the front side together with the lid body 28, the printing paper 4 after printing can be removed as shown in FIG. It will be taken out to the outside as shown in the figure.

A transparent lid 29 is attached to the top of the lid 28 of the paper table 24 so as to be openable and closable for visually checking the printing state.

On the front side (right side) of the plate cylinder 3, there are a pair of discharge rollers 30, 31 and a waste plate for separating and storing the stencil paper 13 that is no longer needed after printing a predetermined number of sheets from the plate cylinder 3. A storage box 32 is provided. Of the plate discharge roller pair 30, 31, the movable roller 31 is attached to the free end of a swing lever (not shown), and the movable roller 31 is attached to the plate cylinder 3.
When the downstream end edge of the stencil paper 13 starts to be peeled off from the stencil paper 13, it is pressed against the printing drum 3 (the stencil paper 13), and after the separation is started, it is pressed against the fixed roller 30.

The above-mentioned waste plate storage box 32 is provided on the front side (right side) of the pair of plate discharge rollers 30 and 31, and after the start of peeling,
The stencil paper 13 is pinched by the pair of stencil discharge rollers 30 and 31, and is sequentially discharged and stored in the waste stencil storage box 40. The waste plate storage box 32 is configured so that it can be pulled out to the front (to the right) by itself.

The plate cylinder 3, plate discharge roller pair 30, 31, and waste plate storage box 32
As shown in FIG. 2, it is constructed so that it can be pulled out integrally toward the front (to the right).

Note that the waste plate storage box 32 may have a W4 shape so that it can be pulled out on the front side (right side), and the plate cylinder 3 is
It may be configured such that it can be pulled out in a direction parallel to the direction in which the axis of rotation extends.

Further, as shown in FIG. 5, a plate cylinder 3, a pair of plate discharge rollers 30,
．． 31, in addition to the waste print storage box 32, the thermal head 1
5 and stencil paper 13! It may be configured so that it can be pulled out to the front (to the right) as ¥≠♂iJ.

Although the present embodiment does not include a document reading device, it is also possible to install a document reading device and obtain printed matter directly from the document.

Further, since the paper feed section and the paper discharge section do not protrude from the left and right sides of the apparatus main body, it is possible to closely arrange the OA type equipment table on the left and right sides of the apparatus main body.

(G) Effects of the Invention In the present invention, the printing paper fed by the paper feeding means is pressed against the bottom side or the plate cylinder at the time of paper feeding, so that the printing ink is transferred, and then the printing paper is transferred to the printing paper by the paper reversing means. The sheets are inverted and placed one after another in a position below the sheet feeding means with the printing side facing upward.

Therefore, the paper feed section and paper ejection section do not protrude from the left and right sides of the main body of the device, and the installation area of the stencil printing device is extremely narrow (172 to 1/4) compared to conventional ones. Dead space caused by installation of equipment is reduced.

Furthermore, since the paper feeding section and paper discharging section, from which noise from the main body of the apparatus is likely to be emitted, can be sealed with a lid, quietness is improved and the apparatus can be installed in a normal office.

Furthermore, it becomes possible to operate completely from the front, which not only improves work efficiency but also provides a great design effect.

Furthermore, various types of OA type equipment such as PC YawerPro can be placed adjacent to the left and right sides of the device body, and the operator who operates the OA type device can immediately operate the device of the present invention, improving work efficiency. Much improved.

[Brief explanation of drawings]

Figure 1 is an internal configuration diagram showing an embodiment of the present invention, Figure 2 is an internal configuration diagram showing the plate cylinder etc. pulled out to the operating side, and Figure 3 is an internal configuration diagram showing the sheet loading means pulled out to the operating side. FIG. 4 is a perspective view of the internal configuration, and FIG. 5 is an internal configuration diagram showing the state in which the plate cylinder and the like of another embodiment are pulled out to the operation side. 1... Device main body, 2... Support shaft, 3... Plate cylinder, 4
...Printing paper, 5.Paper feed tray, 6.Lid, 7.
...Paper feed roller, 8.9...Register roller pair,
10...Rotating Yuzu, 11...Pressure roller, 12
... Reel, 13... Stencil paper, 14... Tension roller, 15... Thermal head, 16... Platen roller, 17... Cutter device, 18.19...
・Transport roller pair, 20...Base paper supply roller, 21...
- Clamper, 22... Guide plate, 23... Paper discharge conveyor, 24... Paper mounting table, 25... Paper mounting plate,
26.27...wheels, 28.29...lid body, 30.
31... Pair of plate discharge rollers, 32... Waste plate storage box, C.
...Operation side.

Claims (1)

[Scope of Claims] 1. A stencil printing device that prints a calligraphic image on a printing paper by bringing the printing paper into pressure contact with a printing cylinder that stores printing ink inside and around which a stencil paper after stencil making is wound. , a paper feeding means in which printing paper is stacked and stored; a paper pressure contacting means for pressing the lower surface of the printing paper fed by the paper feeding means against the plate cylinder; Paper mounting means for mounting the printed printing paper in a top-facing position are sequentially arranged, and the rotational axis of the plate cylinder extends in a direction parallel to the side surface on the operation side of the apparatus main body. A stencil printing device characterized in that the means is located below the paper feeding means. 2. Claim 1, wherein the paper feeding means is provided above the plate cylinder.
The stencil printing device described. 3. The stencil printing apparatus according to claim 1 or 2, wherein the plate cylinder is constructed so that it can be pulled out from the side surface on the operation side toward the front side. 4. The stencil printing apparatus according to any one of claims 1 to 3, wherein a stencil sheet on which a calligraphic image corresponding to the printed document image is made is stored below the paper feeding means. 5. The stencil printing apparatus according to claim 1, further comprising a stencil making means for making a calligraphy image corresponding to the printed document image on the stencil paper below the paper feeding means. 6. The stencil printing apparatus according to any one of claims 1 to 5, further comprising plate feeding means for supplying and winding the stencil paper after plate making around the plate cylinder. 7. The operation side of the plate cylinder is provided with a plate discharge means for separating the stencil paper from the plate cylinder after printing, and a waste plate storage box in which the stencil paper separated and discharged by the plate discharge means is stored. ,
The stencil according to any one of claims 1 to 6, wherein the waste plate storage box alone or the plate ejecting means and the waste plate storage box are configured so that they can be pulled out from the operation side side toward the front side. Printing device. 8. The stencil printing apparatus according to claim 7, wherein the plate cylinder, the plate discharging means, and the waste plate storage box are constructed so that they can be pulled out as a unit from a side surface on the operating side toward the front side. 9. The stencil printing apparatus according to claim 8, wherein the plate cylinder, the stencil paper, the stencil making means, the stencil discharging means, and the waste plate storage box are configured so that they can be pulled out as a unit from the operating side toward the front. 10. The paper placement means on which the printing paper after printing is placed is:
The stencil printing device according to any one of claims 1 to 9, wherein the stencil printing device is configured so that it can be pulled out from the side surface on the operation side toward the front side. 11. The stencil printing apparatus according to any one of claims 1 to 8, wherein the paper mounting means on which the printing paper after printing is mounted is provided with a descending means for gradually lowering the paper mounting section. . 12. The stencil printing apparatus according to claim 1, wherein both the paper feeding means and the paper mounting means are closed.