JPH0735222B2 - Sheet edge folding device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a sheet folding device, and more particularly to an end face folding device that folds a corner portion that is folded over a file binding edge into a triangular shape by blade folding or the like.

[Conventional technology]

For example, conventionally used blueprints (diazo copy) and recent electrophotography (transfer type copy) can obtain copies of various sizes.

Generally, A-size copies larger than A4 are folded to A4, and B-size copies larger than B5 are folded to B5. For example, when folding A2 into A4, first fold one corner into a triangular shape (end face fold), then perform one vertical fold,
Next, horizontal 2 diffraction (blade folding) is performed.

[Problems to be Solved by the Invention]

Since this type of sheet folding process is conventionally performed by hand, it requires a lot of work and the accurate folding shape is not always obtained. Many people do not know the folding method, and it takes time and time to correct the folding method. The triangular shape of the end face fold must be adapted to the sheet size, but it is difficult to obtain an accurate fold shape for each size.

It is a first object of the present invention to provide an end face folding device that can obtain an accurate folding line and folding shape, and to provide an end face folding device that automatically performs end face folding of each sheet size with a plurality of sheet sizes. Is the second purpose.

[Means for Solving the Problems]

The sheet edge folding apparatus according to the present invention has a first side (FE) and a first side (FE) parallel to the direction (103) of the sheet (PR) extending in the predetermined direction (103) at the standby position (Fig. 5b). ) Is located below the corner where the second side (SE) orthogonal to
Straight part (197a) where the first side (FE) and the second side (SE) intersect
And the straight portion (197a) and the second side (SE), which are continuous with the second side (SE) and extend outward of the sheet (PP), are curved in the direction toward the second side (SE), and the front end is the second side (SE) of the seat. A folding plate (197) having a curved portion (197b) on the outside of) and having a folding edge with a downwardly facing tapered surface for guiding the sheet downward; At the position (FIGS. 5b and 5c), it is located above the seat (PR) and is inside the seat (PR) with respect to the second side (SE) rather than the seat (PR). ), The intersection of the extension line of the side near the second side (SE) of the sheet (PR) is the bending of the curved portion (197b) of the "shi" shape on the second side (SE). A pressing plate (138) extending substantially parallel to the linear portion (197a) so that the point comes into contact with or near the position of the point; a pressing position for pressing the pressing plate (138) against the sheet (PR). The pressing plate driving means (140, 148, 150, 152) that is driven downward to the rear folding plate (197) after the pressing plate (138) has moved to the pressing position until at least the folding edge of the folding plate is located above the pressing plate (138). Folding drive means (136,196,198,19 that drives in parallel with
9); After the folding plate (197) is positioned above the pressing plate (138) via the sheet folded by the folding plate (197) by driving the folding plate (196) by the folding driving means (136, 196, 198, 199) The pushing plate (138) is moved in the same direction as the direction (103) in which the folding plate (197) is driven by the folding driving means (136, 196, 198, 199).
Retraction drive means (195,196) for driving the folded sheet until it goes out below; Folded plate return drive means (136,196,198,199) for driving the folding plate (197) to the standby position (Fig. 5b); Push plate (138) Top return drive means (144) for driving the push plate (138) upward; lateral return drive means (14) for driving the push plate (138) to the standby position.
5); A plurality of registers including a movable register (126) that moves to a seat stop position and a retracted position and that stops and restrains the fourth side of the seat (PR) that faces the second side (SE). (126,178); Register driving means (13) for driving the movable register (126)
0); and whether or not end face folding is required according to the sheet size and folding type,
When end face folding is required, the register (126) corresponding to the sheet size is placed at the sheet stop position through the register drive means (130), the sheet (PR) is positioned by the register (126), and the presser drive means (140, 148, 150, 152). ), Folding drive means (136,196,198,199), retract drive means (195,196), folding plate return drive means (136,196,198,199), top return drive means (144) and sideward return drive means (145) to urge the seat (PR). Folding control means (10,3
0);

The symbols in parentheses indicate the corresponding elements in the drawings of the embodiments shown in the drawings (FIG. 4 and below) and described later.

[Action]

The driving means (140, 148, 150, 152) drives the pressing plate (138) downward to a pressing position for pressing the sheet (PR), so that the pressing plate (138) presses the sheet (PR). By the way, folding plate (19
The linear portion of the folded edge of 7) is located at the position of the base of the triangle having one corner of the sheet (PR) as the apex and facing the apex, and the push plate (138) is the linear portion. Since they are substantially parallel, the push plate (138) has one corner of the seat as its apex.
The sheet is pressed at the bottom of the prism (hereinafter referred to as a triangular fold) facing the apex (thus, the triangular fold appears by temporarily raising the corner of the sheet to reach the upper surface of the pressing plate). .

Then, the folding drive means (136, 196, 198, 199) moves the folding plate (1) after the pushing plate (138) moves to the holding position as described above.
97) is driven parallel to the seat surface at least until its folded edge is located on the push plate (138). The folding plate (197) is below the seat (PR) and the pushing plate (138) is above the sheet (PR). When the folding plate (197) moves in this way, the pushing plate (138) returns to the return plate. An extension line and sheet (P
The intersection of R) with the second side (SE) is on the second side (SE),
Since the linear portion (197a) extends substantially parallel to the bending point of the "shi" -shaped curved portion (197b) at or near the bending point, the linear portion (197a) is Three
The square folds are erected upward, and at this time, the curved portion (197b) forms the fold start point of the bottom side of the triangular fold piece on the second side (SE) side of the sheet (PR), and the fold is inward from the sheet. Proceed to
An accurate triangular fold piece is smoothly folded back on the upper surface of the push plate (138).

Further, the retracting drive means (195, 196) is connected to the folding drive means (13
The folding plate (197) is driven by (6,196,198,199) and then the pushing plate (138) is moved in the same direction as the direction (103) in which the folding plate (197) is driven by the folding driving means (136,196,198,199). Drive in the direction until it passes under the folded back triangular piece. This allows the push plate (13
8) Retreat from the folded back triangle piece.

Then, the folding back drive means (136, 196, 198, 199) drives the folding plate (197) to the standby position (Fig. 5b), and the top return driving means (144) drives the folding plate (138) upwards, and the lateral return driving means. (145) drives the push plate (138) to the standby position. As a result, the folding plate (197) and the pressing plate (138) are placed on the next sheet.
It will be the waiting position for turning.

As described above, the pressing plate (138) presses the sheet (PR), the folding position is defined by the pressing plate (138), and the folding plate (197) is
Triangular folds are erected upward in the straight part of the fold edge, and a fold starting point is formed at the bottom of the trigon fold on the second piece (SE) side of the sheet (PR) at the curved part. Triangular folds are smoothly folded back on the upper surface of the push plate (138) in a shape that advances the folds inward of the sheet, so that the trigonal folds are performed accurately, the position and direction of the fold lines are accurate, and an accurate fold shape is obtained. To be

The control means (10, 30) determines whether or not the end face must be folded according to the sheet size and the folding type, and when the end face must be folded, the register (126) corresponding to the sheet size is set through the register driving means (130). Since the seat (PR) is positioned at the seat stop position by the register (126), the above-mentioned seat (P)
R) The corner folds of the corners of the corners are automatically selected as appropriate, and even in the case of sheets of different sizes, the edge folds described above are automatically performed at the predetermined positions corresponding to each size. Accurately obtained.

Other objects and features of the present invention will become apparent from the following description of preferred embodiments with reference to the drawings.

〔Example〕

FIG. 1 shows a state in which a front cover that can be freely opened and closed is removed from a sheet processing machine 900 equipped with an end surface folding device according to an embodiment of the present invention.

Note that this sheet processing machine 900 has the appearance shown in FIG. 2 when the front cover is closed, and in the most preferable embodiment, as shown in FIG. 2, it is inserted between the copying machine 800 and the sorter 1000. The control signal line of the sheet processing machine 900 is connected to the copying machine 800. The control signal line of the sorter 1000 is also a copying machine 800.
It is connected to the.

If the copier 800 is designed to be the most suitable for this combination mode, the copy size (recording paper size), the number of sheets,
Copy supply attitude (vertical, horizontal), stamp data (stamp necessity, stamp position, publisher, drawing type), punch data (punch necessity), paper discharge data (paper discharge to tray ET or sorter 1000) Paper discharge), start signal, end signal, etc. are given to the sheet processing machine 900.

The sheet processing machine 900 is equipped with an operation board 11,
With this operation board, input size, input attitude (vertical, horizontal),
Set stamp data (stamp necessity, stamp position, issuer, drawing type), punch data (punch necessity), paper ejection data (paper ejection to tray ET or paper ejection to sorter 1000), start signal, etc. It can be input and can operate independently of the copying machine 800 even in response to the setting of the operation board 11 and the operation of the board 11.
When receiving a certain signal from the copying machine 800, the sheet processing machine 900 takes up the data and signals received from the copying machine 800 prior to the setting and operation of the operation board 11. When the copying machine 800 does not provide the required data, the sheet processing machine 900 operates according to the setting and / or operation of the operation board 11.

Referring back to FIG. Copy paper from copier 800 is arrow 8
It is given to the sheet processing machine 900 from the 01 direction. When the copying machine 800 is not connected, the paper is fed to the sheet processing machine 900 from the direction of the arrow 801 by an auto feeder or by hand.

The paper that has entered the sheet processing machine 900 is the vertical folding mechanism unit 100-
90 ° Turn Mechanism Unit 200-Blade Folding Mechanism Unit 300-
The punch mechanism unit 400, the stamp mechanism unit 500, the vertical transport mechanism unit 600, the sheet discharge mechanism unit 700 are transported in this order, and are discharged from the sheet discharge mechanism unit 700 in the direction 701 toward the tray ET or the direction 703 toward the sorter 1000. To be done.

The vertical folding mechanism unit 100, the 90 ° turn mechanism unit 200, the blade folding mechanism unit 300, the punch mechanism unit 400, the stamp mechanism unit 500, and the vertical transport mechanism unit 600 are housed in a drawer type case, and a paper discharge mechanism unit. The 700 is mounted on the main body of the sheet processing machine 900, and is protected by a unit cover that can be freely opened and closed.

A drawer handshake is fixed to the case wall on the front side of the drawer type case that houses each unit, and a grip for manually feeding jam paper 180, 215, 38 is attached to the outside of the case wall.
6,472 and 634 are exposed. Each of these grips is connected to the paper feed roller of the mechanical unit.
237, 390 and 476 are switches for instructing the cutting of jammed paper.

Engagements that are spring-engaged with the latch members of the main body of the sheet processing machine 900 are fixed to the case wall on the back side of the drawer type case that houses each unit. When it is pushed in with a relatively strong force, it engages with the latch member. In the engaged state, the engagement element cannot be disengaged from the latch member even if a weak force is applied in the case withdrawing direction. When the case is pulled out with a strong force, the engaging element is disengaged from the latch member, and the pull-out type case is pulled out from the main body of the sheet processing machine 900 to the front side.

Also, a power line male connector and a signal line male connector that are coupled to the power line female connector and the signal line female connector of the sheet processing machine 900 are fixed to the case wall on the back side of the drawer type case that houses each unit. These male connectors engage the female connectors when the aforementioned engagers engage the latch members.

Generally speaking, the gear for obtaining the main power of the mechanism unit is exposed on the inner side of the case wall on the inner side of the drawer type case accommodating each unit, and the aforementioned engaging element engages with the latch member. At this time, this gear engages with the gear of the power transmission system of the main body of the sheet processing machine 900 driven by the main motor.
The gear for obtaining the main power of the mechanism unit is pivotally attached to a drawer type case, and its gear shaft is provided with other gears, through a power transmission means such as a chain or a belt, and optionally a clutch. The paper transport roller of the mechanical unit is connected. Depending on the mechanism unit,
Independently equipped with a motor for driving the roller, in this embodiment,
Sheet processing machine 900 is a mechanical unit with simple paper feed control.
The rollers of the mechanical unit are connected to the main power system of the main body via gears.However, in the mechanical unit with slightly complicated paper feed control, the drawer type case is equipped with an independent motor, and the paper inside the mechanism is The feed rollers are independently driven by the motor.

The vertical folding mechanism unit 100, 90 ° turn mechanism unit 200, blade folding mechanism unit 300, punch mechanism unit 400, stamp mechanism unit 500, and vertical transport mechanism unit 600 are drawer-type unit units. In mechanism inspection, repair, etc., each unit can be simply removed from the processor 900 and placed on a workbench. It is also easy to reattach.

When the jammed paper straddles the vertical folding mechanism unit 100 and the 90 ° turn mechanism unit 200, the switch 237 is pressed, and then the vertical folding mechanism unit 100 and the 90 ° turn mechanism unit 200 are pulled out in order to remove the jammed paper. When the switch 237 is pressed, a cutter (223: FIG. 4) provided in the unit 200, which will be described later, automatically cuts the paper between the units 100 and 200 between them.

Similarly, when the jammed paper straddles the 90 ° turn mechanism unit 200 and the blade folding mechanism unit 300, the switch 390 is pressed, and then the 90 ° turn mechanism unit 200 and the blade folding mechanism unit 300 are pulled out in order to remove the jammed paper. To do. When the switch 390 is pressed, the cutter (376: Fig. 4) provided in the unit 300, which will be described later, will automatically
-Cut between 300 sheets of paper between them.

Similarly, when the jammed paper straddles the blade folding mechanism unit 300 and the punching mechanism unit 400, the switch 476 is pressed, and then the blade folding mechanism unit 300 and the punching mechanism unit 400 are pulled out in order to remove the jammed paper. When the switch 476 is pressed, the cutter (452: Fig. 4) provided in the unit 400, which will be described later, automatically becomes the unit 300-400.
Cut the paper in between between them.

An outline of the paper processing operation of the sheet processing machine 900 is shown in FIGS. 3a and 3b.

The sheet processing machine 900 sets the maximum size of the processable paper to A2 (indicates the size; hereinafter, the size and the plate are omitted and only the size symbol is shown).
Only the vertical orientation shown in the figure can be processed. The relationship between paper size and possible processing of sheet processor 900 is summarized below.

As shown in the left column of FIGS. 3a and 3b, the copying machine 800 makes copies of various sizes, magnifications and postures from originals of various sizes and postures, and gives them to the sheet processing machine 900.

FIG. 4 shows a schematic configuration of each mechanical unit of the sheet processing machine 900. This FIG. 4 shows the sheet processing machine 90 shown in FIG.
This corresponds to an enlarged view of the drawer type case of 0 with the front side wall surface removed. The outline of the paper processing of each mechanism unit corresponding to the paper size and the posture with reference to FIG. 4 is as follows.

Vertical folding mechanism unit 100 (1) A2 / vertical / plain thread --- The paper that has arrived with the gate claw 112 as the solid line position in the figure is sent to the unit 200.

(2) A2 / vertical / four-folding --- With the gate claw 112 at the position indicated by the chain double-dashed line, the incoming paper is guided between the vertical folding rollers 116-120, and the vertical folding roller folds vertically to fold it directly below the vertical folding roller. Send to the unit 200 through the paper feed port.

(3) A2 / JIS folding --- With the gate claw 112 at the position indicated by the chain double-dashed line, the incoming paper is guided between the vertical folding rollers 116-120, and the vertical folding roller vertically folds the A4 long side length into two. As a result, the sheet is sent to the unit 200 through the paper feed port directly below the vertical folding rollers 116, 118, 120.

(4) B3 is processed in the same manner as (1) to (3) above. However, A2 in (1) to (3) is read as B3.

(5) For paper of sizes other than A2 and B3, the incoming paper is guided (passed) to the unit 200 with the gate claw 112 as the solid line position in the drawing.

90 ° turn unit 200 (1) A2 sends one side of the paper to the unit 300 as it is along the register.

(2) A3 / sideways / straight through --- One side of the paper is sent along with the register to the unit 300 as it is.

(3) A3 / Horizontal / JIS fold or double fold --- Turn the paper 90 degrees and put one side of the paper along the register to make the unit 300.
Send to.

(4) A3 / vertical --- One side of the paper is sent along with the register to the unit 300 as it is.

(5) A4, horizontal --- One side of the paper is sent along with the register to the unit 300 as it is.

(6) A4 / Vertical --- Turn the paper 90 ° and feed one side of the paper to the unit 300 along the register.

(7) For the processing of the B plate paper, the processing of the A plate paper (1) to
It is similar to (6). However, A2 is B3, A3 is B4,
Read A4 as B5.

Blade Folding Mechanism Unit 300 (1) A2 / Vertical / Fourfold Folding --- Paper (vertically folded in two) is sent to the register 342, and horizontal folding rollers 320 and 322 send it to the unit 400 as a horizontal fold.

(2) A2 / Vertical / JIS Folding --- Paper (folded in two vertically) is sent to the register 34, folded in two horizontally with the horizontal folding rollers 320 and 322, and further sent to the register 362 and then the horizontal folding roller 32.
Send it to the unit 400 by folding it horizontally in 2,1324.

(3) A3 / horizontal / JIS folding --- Paper is sent to the register 338 and folded in two horizontally with the horizontal folding rollers 320 and 322, and further register 3
Then, the sheet is sent to 58 and horizontally folded by rollers 322 and 1324 to be horizontally folded to the unit 400.

(4) A3 / horizontal / two-fold --- The sheet is sent to the register 342 and horizontally folded by the horizontal folding rollers 320 and 322 to form a unit 400.
Send to.

(5) For other A-size paper, use the unit 40 as it is.
Send to 0.

(6) The processing of B-size paper is also the same as in (1) to (5) above. However, A2 should be read as B3, A3 as B4, and A4 as B5. However, with the register layout of this example, only B3 JIS folding (file folding) is possible, and at that time, register 338 and register 3
Use 60. Further, the register arrangement is such that the B-row cannot be folded in two.

Punch mechanism unit 400 (1) If punch is not specified, the unit will be used as it is.
Pass through the 500.

(2) If punching is specified on the A plate, punch on the left long side with the center of the long side of A4 as the symmetry point.

(3) If punching is specified on the B plate, punching is performed on the left long side with the center of the long side of B5 as the symmetry point.

Stamping mechanism unit 500 (1) If the stamping is not designated, the stamping unit is directly passed through the unit 600.

(2) If a stamp is specified, the mechanical unit 500
The stamp is performed at the position in the paper longitudinal direction (direction orthogonal to the paper feeding direction) set manually in (1) and the position in the paper short side direction (paper feeding direction) specified by the data.

Vertical transport mechanism unit 600 Sends all the fed paper to the unit 700.

Paper ejection mechanism unit 700 (1) When the paper ejection is instructed to the tray ET, the paper is delivered to the tray ET with the paper ejection gate claw 712 set to the solid line position in the drawing.

(2) When it is instructed to discharge the paper to the sorter 1000,
The incoming paper is sent to the sorter 1000 with the discharge gate claw 712 at the position indicated by the chain double-dashed line.

Next, the configuration of each mechanical unit will be described with reference to FIGS. 5a to 5h.

First, the configuration of the vertical folding mechanism unit 100 will be described with reference to FIG. 5a.

The vertical folding mechanism unit 100 includes rollers 104 and 108 for inputting paper, an input gate claw 112 for determining the paper feeding direction, and three vertical folding rollers 1
16, 118, 120, vertical folding conveying rollers 162, 166, end folding folding plate 197, vertical folding position setting registers 154, 156, etc. are provided, and the required rollers are connected to the drive power system (not shown) of the unit 100. ing.

The paper entrance gate claw 112 is fixed to the rotary shaft 110, and the rotary shaft 110 is rotationally driven by a solenoid 114. When the vertical folding is not instructed, the solenoid 114 does not energize the sheet feeding gate 112 and places it at the solid line position in the figure. In this state, the paper sent directly below the paper sensor 174 will be
It is accepted at 08, but hits the lower curved surface of the claw 112, is bent downward, and goes straight to the unit 200. When the vertical folding is instructed, the solenoid 114 is energized when the sensor 174 detects the paper, and the tip of the claw 112 is moved to the lower roller shaft 106.
Descends in the direction (state indicated by a chain double-dashed line in FIG. 4). In this state, the paper sent directly below the sensor 174 is
It is received at 04, 108, rides on the upper surface of the claw 112, and is fed toward the vertical folding rollers 116, 118, 120.

The vertical folding rollers 120 and 118 are adjacent to each other at an interval of about the thickness of the paper (about 5/100 mm).
Do not touch. The vertical folding roller 116 is supported by the shaft body 122 and is rotatable around it. A plunger of a solenoid 124 is connected to the arm that pivotally connects the roller 116. When the solenoid 124 is energized, the roller 1
16 separates from the roller 118 and paper that has passed through the upper surface of the pawl 112 can enter between the rollers 118 and 116. When the solenoid 124 is not energized, the roller 116 is in pressure contact with the roller 118.

The fixed register 178 is for positioning the A2 short side during vertical folding, the fixed register 154 is for positioning the A2 long side during vertical folding of A2 / 4 folds, and the movable register 126 is for positioning the B3 short side during vertical folding. The movable register 156 is for positioning the long side of B3 when vertically folding B3 / four-fold.

The movable registers 126 and 156 have solenoids 13 respectively.
0 and 160 plungers are connected. solenoid
When 130 is not energized, the register 126 is retracted from the vertically folded paper transfer path. When the solenoid 130 is energized, the register 126 advances into the vertically folded paper transport path and stops incoming paper there. When the solenoid 160 is not energized, the register 156 is retracted from the vertically folded paper transfer path. Solenoid 1
When 60 is energized, the register 156 advances into the vertical folding paper transport path and stops incoming paper there.

The rollers 166 and 162 energize the solenoid 124 and the rollers 116
Is for feeding the paper guided through the upper surfaces of the rollers 104 and 108 and the claw 112 to the register 178 or 126 in a state in which is pulled up. After applying the leading edge of the paper to the register 178 or 126, the solenoid 124 is de-energized and the vertical folding roller 1
Paper is sandwiched between 16 and 118. In this state, when the paper hits the register 154 or 156 by the rollers 116 and 118, the paper is bent at the place where it goes out between the rollers 116 and 118, and the bending becomes large, and the paper is caught between the rollers 118 and 120 and folded in half vertically. Then, it is delivered to the unit 200 through a delivery port (a slit-shaped opening parallel to the axis of the vertical folding roller) immediately below the rollers 118 and 120. In order to prevent the rotation of the rollers 166 and 162 from giving a resistance to the movement of the paper in such a vertical half-folding, the roller 16
A steel ball 169 is placed on the roller 6, and a steel ball solenoid 164 faces the roller 162.

The steel ball 169 is supported by a ball support (not shown) so as to be rotatable in multiple directions. The steel ball 169 always contacts the roller 166, and when the paper arrives, the paper is pressed against the roller 166 by its own weight, and rotates with the movement of the paper. To do. Therefore, when the paper moves directly below the vertical folding roller 116 in the direction orthogonal to the axis of the roller 116 (vertical two-fold), the steel balls 169 rotate as the paper moves, so that the movement of the paper is not hindered. .

The steel ball solenoid 164 has a structure in which an electric coil is wound around a magnetic core, and when the electric coil is energized, the steel ball 165 is attracted to the core and separated from the roller 162. The steel ball 165 generally acts on the paper in the same manner as the steel ball 169, but when the paper is driven in the direction orthogonal to the axis of the vertical folding roller 116 (vertical two-fold), the electric coil is energized. Steel ball 165 and roller 162
Pull up from (paper) to reduce the frictional resistance of the roller 162.

The folding plate 197 is fixed to a carriage 198, and the carriage 198 is guided by a guide bar 199 in the arrow direction (roller 116).
It is guided reciprocally in the axial direction. Carriage 19
A link arm 196 is pivotally attached to the 8, and another link arm pivotally attached to this link arm is fixed to the output shaft of the half-rotation clutch 136. Half-turn clutch 136
The gear fixed to the input shaft of is engaged with the drive power system (not shown) of the unit 100. Half-turn clutch 136
When it is energized, it rotates the link arm 196 half a clockwise direction to drive the carriage 198 (that is, the folding plate 197) to the right, and when the energization is cut off, the link arm 196 is half a clockwise rotation. Let the carriage 198 (that is, folding plate 197)
Drive to the left. FIG. 5a shows the folded plate 197 in the standby position.

To the right of the folding plate 197 is the push plate 138. The push plate 138 is fixed to a U-shaped arm 140, and the arm 140 is pivotally attached to a carriage 142. Carriage 142 is a guide bar
It is guided reciprocally by a guide bar 193 parallel to 199. An arm 146 is fixed to the carriage 142, and a tip 195 of the arm 146 projects into the path of the carriage 198. A roller 152 is in contact with the U-shaped arm 140, and the roller 152 is pivotally attached to one end of the rotating arm 148. The plunger 150 of the solenoid 150 is coupled to the other end of the rotating arm 148. In the state shown in FIG. 5a (standby state), the U-shaped arm 140 is held loosely by the roller 152. The U-shaped arm 140 has a U-shaped arm 1 due to the spring 145 (left pull) and the spring 144 (upward pull).
Push plate 138 fixed in a dogleg shape to 40
Is rising above. In this state, the rollers 116-118
The paper fed in between passes through the space between the folding plate 197 and the pressing plate 138. When the solenoid 150 is energized, the arm 148 rotates counterclockwise and the roller 152 strongly presses the arm 140. As a result, the U-shaped arm 140 rotates counterclockwise, and the entire pressing plate 138 becomes lower than the upper surface of the folding plate 197 and presses the paper downward. When the half-rotation clutch 136 is energized in this state, the folding plate 197 moves to the right and bends the paper when overcoming the push plate 138. When the folding plate 197 moves to the right to some extent, the carriage 198 pushes the tip 195 of the arm 146 to the right, and the pushing plate 138 also moves to the right. When the U-shaped arm 140 is separated from the roller 152 to the right, the U-shaped arm 140 is prevented from returning to the left by the roller 152. When the half-turn clutch 136 is de-energized in this state, the folding plate 197 returns to the standby position shown in FIG. 5a. When the solenoid 150 is de-energized, the U-shaped arm 140 pushes up the roller 152 by the force of the spring 144, whereby the push plate 138 moves upward while the push plate 138 moves upward, and moves to the left by the force of the spring 145. The standby state shown in FIG.

FIG. 5b shows an enlarged plane of the folded plate 197, FIG. 5c shows a section taken along the line VC-VC, and FIG. 5d shows a section taken along the line VD-VD. Folding plate 197
The edge on the side of the push plate 138 is a substantially knife edge with the lower surface inclined (dotted line) so that the paper PR (two-dot chain line) can be folded and easily gripped. Also, the tip of the folding plate 197 is
It is shaped like a "shi" to prevent the paper from running away. A2
When the sheet of paper PR is positioned by the register 178 and the sheet of B3 is positioned by the register 126, one corner of the paper PR (two-dot chain line) has a triangular shape on the folding plate 197 as shown in FIG. 5b. Riding on the straight line portion 197a having a long "shi" shape, the triangular portion of the paper PR is above the folding plate 197, and the other portion is below the pressing plate 138. In the push plate 138, the position of the intersection of the extension line of the side facing the straight line portion 197 of the folding plate 197 and the second side SE of the paper PR is
The bent bottom 197b of the folded plate 197 is substantially parallel to the straight line portion 197a of the folded plate 197 so that the bent bottom 197b is located at or near the position of the second side SE.

This state is shown in FIG. 5e. In this state, solenoid 150
When the paper is energized, the paper is pressed by the pressing plate 138 against the lower paper guide plate (not shown). When the half-rotation clutch 136 is energized, the folding plate 197 moves to the right, and the triangular portion of the paper PR is gradually raised by the long straight line portion 197a of the folding plate 197 and stands up. On the other hand, a short substantially straight line portion 197c, which corresponds to the splashed portion of the "shi" in the folded plate 197, crosses the second side SE of the paper PR upward, and this short substantially straight line portion 197c is the second side of the paper PR. SE
Move to the right while holding down the rise of. The long straight line portion 197a of the folding plate 197 gradually raises the second side SE of the paper PR from a position near the apex of the triangular folding corner, while the short substantially straight line portion 19a.
Since 7c presses the second side SE of the paper from a position far from the triangular folding corner apex in a direction gradually approaching the corner apex,
Finally, when the bent bottom 197b of the "shi" shape hits the second side SE of the paper PR, a fold start point is formed on the second side SE, and a fold is made in the direction of the push plate 138 from this fold start point. Start to progress. That is, the position where the bent bottom 197b of the "shi" shape abuts the second side SE of the paper PR (the position on the second side SE) becomes the fold start point on the second side SE, and the descent appears there. . Before and after that, "shi"
The first side FE of the paper erected by the straight line-shaped portion 197a having a long square shape is blocked by the left edge of the pressing plate 138 and starts to be folded. That is, a turning point is formed on the first side FE. As the folding plate 197 moves further to the right, the fold line advances in the length direction of the pressing plate 138 from the above-mentioned folding start point of the second side SE of the paper PR, and the same from the above-mentioned folding start point of the first side FE. The crease advances toward the inside of the paper PR, and extends from the fold start point of the first side FE and the fold start point of the second side SE at a position where the folding plate 197 presses the folded triangular portion of the paper PR to some extent. The folds are continuously aligned to form a straight line, and the triangular portion of the paper PR is exactly folded back on the pressing plate 138. The folding plate 197 folds the paper corner in this way to reach above the pressing plate 138 and the paper on it. This state is the fifth
Figure f shows. When the folding plate 197 further advances to the right, the pushing plate 138 also moves to the right, and the pushing plate 138 comes out from the folded portion of the paper to the right. This state is shown in FIG. 5g. When the half-rotation clutch 136 is de-energized, the folding plate 197 moves leftward from the position shown in FIG. 5g, and finally returns to the standby position (FIG. 5e). Solenoid 150
When the power is cut off, the push plate 138 returns from the position shown in FIG. 5g to the standby position (FIG. 5e) by the force of the sampling 146.
At this time, the pressing plate 138 moves upward due to the action of the spring 144 and does not come into contact with the folded corner piece of the paper PR.

Although not shown in the drawing, in parallel with the fixed register 154 used for vertical 2-fold for A2 / 4-fold and the movable register 156 used for vertical 2-fold for B3 / 4-fold, vertical 2-fold for A2-JIS folding A movable register (154J) to be used and a movable register (156J) to be used for vertically folding B3 / JIS are installed, and each solenoid (160AJ, 160BJ: not shown) is used to selectively advance to the paper transport path. However, since the drawing becomes complicated,
Illustration is omitted in FIG. 5a.

In this vertical folding mechanism unit 100, the roller 108 is connected to the main power system (not shown) of the unit, and is constantly rotating while the main power system is moving. Rollers 162,166 and 118
In addition, the half-rotation clutch 136 input power system is all together and selectively connected to the main power system via one clutch. The main power system starts moving in response to the start signal and stops when a predetermined condition is satisfied. For example, it is stopped when an end signal arrives, when a predetermined time has elapsed since the paper was not detected by the sensor 174, and when a paper jam was detected. The clutch is energized when A2 / 4 fold mode, A2 / JIS fold mode, B3 / 4 fold mode and B3 / JIS fold mode are set.

When the paper is jammed while the unit 100 is passing through (solenoid 114 is off), the roller 104 is separated from 108 and the jammed paper is removed. Jam the paper in the vertical folding mode (solenoid 114 on), and the jammed paper will be fed to the vertical folding rollers 116, 118 and 1
Since it is difficult to remove it when it is bitten by three people in 20, connect the grip 180 to the roller shaft 170 and
By rotating 0, the rollers 162, 166 and the vertical folding rollers 116, 118, 120 are manually rotated.

Next, details of the operation of the vertical folding mechanism unit 100 will be described with reference to FIG. 5a.

Operation of the Vertical Folding Mechanism Unit 100 (1) A2, 4-fold mode --- When the sensor 174 detects paper, the solenoids 114 and 124 are energized. When the sensor 176 detects the paper, the rotary encoder starts pulse counting, and the count value is the fixed register 178 for the entire leading edge of the paper.
When it reaches the timing value to complete contact with the solenoid 164
Then, the ball 165 is lifted and the solenoid 124 is de-energized. When the sensor 176 does not detect the paper (since the paper is already caught in the roller of the next unit 200), the energization of the solenoids 164 and 114 is cut off.

(2) A2 / JIS folding mode --- When the sensor 174 detects paper, the solenoids 114, 124 and 160AJ (not shown) are energized. When the sensor 176 detects the paper, the rotary encoder starts pulse counting, and when the count value reaches the timing value at which the entire leading edge of the paper contacts the fixed register 178, the solenoid 164 is energized and the ball 165 is raised. The energization of the solenoid 124 is cut off. Solenoids 164 and 160AJ (not shown) when the sensor 176 detects no paper (since the paper is already caught in the rollers of the next unit 200)
And 114, the power supply is cut off. The above is the case where the A2 paper edge is not folded, but when folding the end face, before energizing the solenoid 164, the solenoid 150 is turned on and the pressing plate 138 presses the paper, and the latter half rotation clutch 136 is turned on and the crank is turned on. 196 is rotated half a turn clockwise, then the solenoid 150 is turned off, and then the half rotation clutch 136 is returned to the off home position. After that, the solenoid 164 is energized and the ball 1
After raising 65, the solenoid 124 is de-energized.

(3) B3 / 4-fold mode--When the sensor 174 detects paper, the solenoids 114, 124, 130 and 160 are energized. When the sensor 176 detects the paper, the pulse count of the rotary encoder is started, and when the count value reaches the timing value at which the entire leading edge of the paper comes into contact with the movable register 126,
The solenoid 164 is energized to raise the ball 165 and then the solenoid 124 is de-energized. When the sensor 176 does not detect the paper (since the paper is already caught in the roller of the next unit 200), the energization of the solenoids 164, 130, 160 and 114 is cut off.

(4) B3 / JIS folding mode --- When the sensor 174 detects paper, the solenoids 114, 124, 130 and 160BJ (not shown) are energized. When the sensor 176 detects the paper, the rotary encoder starts counting pulses, and when the count value reaches the timing value at which the entire leading edge of the paper contacts the movable register 126, the solenoid 164 is energized and the ball 165 is raised. The energization of the solenoid 124 is cut off. When the sensor 176 detects no paper (since the paper is already caught in the rollers of the next unit 200), the solenoids 164, 130, 160J and
Turn off the power supply to 114.

(5) Modes other than the above: All solenoids are de-energized, and the rollers 104 and 108 are driven.

(6) In addition to this, normal paper jam detection and mechanism stop during jam detection.

FIG. 5h shows the structure of the mechanical portion of another embodiment of the present invention. In this case, a bar (rotator) 98 is arranged below the guide bar 99, and one end of the lever 98 has a fixing pin 97.
Is pivotally attached to. A pin 99 is fixed to the other end of the lever 98, and the pin 99 is in contact with the side edge of the arm 195. The end face folding operation by this mechanism is also similar to the end face folding operation shown in FIG. 5a, but when the carriage 198 moves forward and the folding plate (197) moves to the right, the carriage 198 moves to the lever.
The lever 98 rotates clockwise when hitting 98, and pushes the arm 195 to the right, which moves the push plate 138 to the right.
Since the carriage 198 pushes the lever 98 between the pin 97 and the pin 99, the push plate 138 moves to the right at a speed faster than the right moving speed of the carriage 198, and escapes from the lower part of the folding plate 197 to the right. As described above, in this example, when the folding plate 197 moves to the right to some extent, the push plate 138 then escapes to the right at a high speed and retracts to the right of the folding plate 197. When the half clutch 136 is de-energized and at the same time the solenoid 150 is de-energized, the folding plate 197 returns to the left, the push plate 138 rotates upward, and the spring 145 returns to the left. In this example, when the end face folding is completed (the folding plate 197 moves to the rightmost), the pushing plate 1
38 retracts to the right larger than the folding plate 197 and the triangular folded paper, and the pushing plate 138 rises from a position sufficiently separated from the triangular folding paper and returns to the left. There is a sufficient margin for the retracting operation of the push plate 138.

The configuration of the vertical folding mechanism unit 100 has been described above.
Next, an electric control system that controls the operation of the mechanical unit 100 will be described.

Figure 6a shows an outline of the configuration of the electric control system. The electrical control system is
Operation board control unit 10, vertical folding & 90 ° turn control unit 20, blade folding control unit 30, punch control unit 40,
Stamper control unit 50, Vertical transport & paper discharge control unit 60
And a sheet processing machine main power source energizing circuit 80.

As shown in FIG. 2, the operation board 11 is a sheet processing machine 900.
It is mounted on the top surface of the key board of this operation board 12a (for paper size indication), 12b (for paper posture indication), 12c
(For specifying folding type), 12d (for specifying whether punching is required), 12e (for specifying stamp type of drawing), 12f (for specifying stamp issuer stamp), 12g (position for stamping stamp: paper feed direction) position:
The key-in interface of the control unit 10 for 12h (for specifying the paper discharge direction) and 12i (for specifying the start direction)
15a is connected, and the display interface of the control unit 10 is connected to the indicator light (light emitting diode: shown by a double circle) of the operation board 12. There are a total of 38 indicator lights, which are assigned as follows.

For paper size indication: 1 for each of A2, A3, A4, B3, B4, B5, all 6 pieces For processing operation availability display: 1 each for ready (ready) display and standby (not available) display
1 piece, 2 pieces in total For indication of type: 1 for each of JIS fold, 4 fold, 2 fold, and no fold
4 pieces, all 4 pieces Paper orientation display: 1 piece each for vertical orientation display and horizontal orientation display, all 2 pieces For stamp presence / absence display: 1 each for presence / absence display, all 2 stamp position display For: For displaying the position where the right edge of the stamp is 0mm from the right edge of the paper, 20m
m Inside position display, 35 mm inside position display, 50 mm inside position display, 65 mm inside position display, 80 mm inside position display, 95 mm inside position display, 110 mm inside position display 1 stamp, all 8 stamps For displaying the drawing issuer: 1 stamp for each of 5 printing surfaces, 5 stamps for displaying stamp type: 1 stamp for each of 5 printing surfaces, 5 punches For display: 1 for display with punch designation, 1 for display without punch designation, 2 in total Discharging direction display: 1 for discharging display to sorter, 1 for discharging display to tray A sheet transfer path in the sheet processing machine 900 is drawn on the display panel 13 of the operation board 11, and an indicator lamp (light emitting diode: 2 in FIG. 6a) is provided at the paper jam detection position on the sheet transfer path. Shigemaru) is arranged. These indicator lights are connected to the display interface 15c. The signal line of the copying machine 800 is connected to the host interface 15e of the control unit 10 via a connector (not shown). The sheet processing machine main power source energizing circuit 80 is connected to the interface 16e of the control unit 10.

As shown in FIG. 6a, the operation board control unit 10 is composed of various interfaces, an input / output port (I / O), a common bus line 17, a microprocessor 14, a ROM 19 and a RAM 18, and is a copy machine 800. To exchange signals with the control unit 20, 30, 40, 50 and 60, and to set ON / OFF signals to the main power system energizing circuit 80. Further, it reads the state of the key switch of the operation board 11 and controls the on / off of the indicator lamp.

The other control units 20, 30, 40, 50 and 60 have the same configuration as that of the operation board control unit 10, and include an interface, I / O, a microprocessor and, if necessary, ROM, RAM.
And so on.

The control units 10, 20, 30, 40, 50 and 60 are sheet processing machines 90
It is stored at the bottom of the 0 output tray ET.

The interfaces of the vertical folding & 90 ° turn control unit 20 include electric elements such as sensors, solenoids, clutches, motors and encoders of the vertical folding mechanism unit 100 shown in Fig. 5a and the 90 ° turn mechanism unit 200 shown in Fig. 4. Are connected via a female connector on the back side of the processor 900 main body and a male connector on the mechanism unit side.

The interface of the blade folding control unit 30 has a fourth
Electrical elements such as sensors, solenoids, and motors of the blade folding mechanism unit 300 shown in the figure are connected via a female connector on the back side of the processor 900 main body and a male connector on the mechanism unit side.

Electrical elements such as sensors, solenoids, and motors of the punch mechanism unit shown in FIG. 4 are connected to the interface of the punch control unit 40 via a female connector on the back side of the processor 900 main body and a male connector on the mechanism unit side. Has been done.

Electrical elements such as sensors, solenoids, and motors of the stamp mechanism unit 500 are connected to the interface of the stamper control unit 50 via a female connector on the back side of the processor 900 main body and a male connector on the mechanism unit side.

For the interface of the vertical conveyance & discharge control unit 60,
Electrical elements such as sensors, solenoids, and encoders of the vertical transport mechanism unit 600 and the paper discharge mechanism unit 700 are used as the processor.
900 Connected via the female connector on the back side of the main body and the male connector on the mechanism unit side.

7a to 7d show the control operation of the microprocessor 14 of the operation board control unit 10. The control operation of the operation board control unit 10, that is, the control operation of the microprocessor 14 will be described with reference to these drawings.

First, refer to FIG. 7a. When the power is turned on, the microprocessor (hereinafter simply referred to as CPU) 14 initializes the input / output port, registers for temporary data storage, status register (flag), counter (program count), timer (program time), etc. Is cleared (step 1).
In the following, the word "step" is omitted in parentheses and only the step symbol is displayed.

When the initialization is completed, the CPU 14 reads the status. In this, first, it is referred to whether or not there is a reading flag (2).
At this point, since the initialization has just finished, there is no read flag, so the routine proceeds to step 3, where the standard data is set in the operation board register. Standard data: Paper size: A4 Fold selection: No fold Vertical / horizontal posture: Horizontal Stamp position: 0mm Publisher: 1st design (1st publisher stamp) Drawing type: Provisional drawing (1st drawing type) Punch selection: No punch Paper output selection: Tray. When this data set is completed, the data-corresponding indicator lamp is turned on correspondingly. In this state, on the operation board 12, stand by (this is set by initialization), A
4, Indicator lights showing No Folding, Horizontal, 0mm, No Punch, 1st Design, Tray, Preliminary Drawing.

FIG. 6 shows the writing position of the data temporarily written in the 3-byte memory area (one area of the internal RAM of the CPU 14) allocated to the operation board register OBR.

When the standard data is written in the operation board register OBR, the read flag is set (4). Next, it is determined whether or not a signal is transmitted from the copying machine 800 by referring to the state of the port that receives the input signal from the copying machine 800 (5). When the signal is transmitted, the signal and data are read in and it is determined whether the signal is a start signal (6). If it is not a start signal, it is judged whether it is an end signal (7). If it is not an end signal, it is data. Therefore, of the input data, the data whose memory bit is allocated to the operation board register OBR is stored in the operation board register. Write OBR update. When such update writing is performed, 1 is written in the bit indicated as the copier input bit of the operation board register OBR. This one
Indicates that the copying machine 800 has instructed the sheet processing machine 900 about a sheet processing method regarding sheet processing. Although not shown, the CPU 14 retains in memory the data received from the copying machine and indicating the data written in the operation board register OBR (indicating what the write data is). When data is received from the copying machine 800 and writing to the operation board register OBR is completed and the process proceeds to step 9, or there is no input from the copying machine 800, step 5
From step 9 to step 9, in this step the operation board 12
Read the key in. If the key-in is due to the key switches 12a-12e (10), refer to the copier input bit,
If it is not 1 (data has not yet been received from the copying machine) (11), the contents of the operation register are updated according to the key-in, and the on / off of the indicator light of the operation board is updated together with this update. For example, when the switch 12a is closed, the size specification bit of the operation board register OBR is updated to the data indicating B3 next to A4 at the moment when the switch 12a is closed, and the indicator light of A4 is turned off and the indicator light of B3 is turned on. To do. If the key switch 12a is closed once when the size specification bit of the operation board register OBR is B5, the size specification bit is set to A2.
To the data indicating that the indicator light of B5 is turned off and the indicator light of A2 is turned on. In this way, the size instruction key switch 12
Each time a is closed, the lighting of the indicator light shifts from the upper side to the lower side in Fig. 6a, and at the same time, the data of the size designation bit of the operation board register OBR changes to the data indicating the size indicated by the illuminated lamp. Will be updated. However, this operation is performed only when the size data is not received from the copying machine 800, and if the size data has already been received, the step
Then proceed to 11-12- and do not update the data or display according to the key-in. The CPU 14 also operates in the same manner for key-in by the key switches 12c to 12h.

The reason why the input data from the copying machine 800 is prioritized in this way is that the data from the copying machine 800 is more reliable than the setting by the operation board 12. When no data comes from the copying machine (for example, when the copying machine is not connected) or when only a part of the required data comes, the insufficient data is updated and set according to the key-in from the operation board 12. When no data is given from the copying machine and there is no key-in on the operation board 12, the setting data becomes the above-mentioned standard data. The start signal for starting the operation of the mechanism of the sheet processing machine is also changed by the copying machine 80, although it goes back and forth from the step development of the illustrated flow chart.
It is designed to be received from 0 and to be keyed in with the start key switch 12i of the operation board 12, but when data is partially received from the copying machine 800 (OBR copying machine input bit = 1), The key-in of the start signal due to the closing of the switch 12i is not accepted in step 38. In this way, the start signal from the copying machine is prioritized even when the processing mechanism starts.

The operation board 12 and its key-in reading / data set have meaning when the copier is not connected and when it is connected to the copier that does not transmit all required data. ) Is not connected, or if the host function is not sufficient, it is supplemented with key-in.

By setting the data in step 8 (setting the data received from the copying machine) or setting the data in step 13 (setting the key-in data), or no data is sent from the copying machine (5). If there is no key-in (9), proceed to step 14 in FIG. 7b, refer to the signal level of the signal receiving port from the unit 20,
Refer to whether it is ready (paper acceptance is possible) or not (standby: paper acceptance is not possible).

Vertical folding & 90 ° turn control unit 20 in step 14 of Fig. 7b
Is Lady, then in step 16 it is checked whether the unit 30 is Lady. When the blade folding control unit 30 is ready,
In step 18, see if unit 40 is ready.
If the punch control unit 40 is ready, then in step 20 it is determined whether the unit 50 is ready. If the stamper control unit 50 is ready, it is checked in step 22 whether the unit 60 is ready. Vertical transport & discharge control unit
When 61 is ready, all units are ready and sheet processing can be executed, so 1 is set in the ready standby bit of the operation board register OBR to indicate that processing is possible (24), and the data of the operation board register OBR is set. Pre-operation board register P
Compare with OBR data (25). Since the previous operation board register OBR has been cleared by the initialization of step 1, the contents of both do not match when the process proceeds to step 25 for the first time. This means that the processing mode data transfer to each of the units 20 to 60, which will be described later, is not executed. Therefore, first, in step 26, the data of the operation board register OBR is updated and stored in the previous operation board register POBR, and the unit 20 in the A version processing mode of FIG.
Proceed to setting (27).

Setting of unit A in processing mode A in Fig. 7c (27)
Then, first, the size is judged from the data of the size designation bit of the operation board register OBR (271).

If the size is A2, then the folding selection bits of the OBR are referenced (272 to 276). If there is no fold, the unit 20 will be A2
Data indicating the transit mode is transmitted (273). When the sheet is folded in four, the data indicating the A2 / vertical folding mode is transmitted to the unit 20 (275). When folded in two, put it in unit 20, A
2. Send data indicating vertical / passing mode (277). If it is JIS folding, data indicating A2, end face folding, JIS vertical folding mode is transmitted to the unit 20 (278).

If the size is not A2, proceed to step 279 to see if it is A3.

If the size is A3, the vertical / horizontal designation bit of the OBR is referred to, which indicates the vertical (280) and the unit 20.
Send A3, portrait, pass mode to (281). When it indicates the side, refer to the OBR fold selection bit (28
2) If it is unbroken, it sends A20, A3, Transverse mode to unit 20 (283). If something is wrong, the unit 20 is sent an A3 90 ° turn mode.

When the size is A4 (285), the vertical / horizontal designation bit is referred to (286), and if it indicates the horizontal direction (286), A4 / horizontal / pass mode is transmitted to the unit 20 (287). . If it does not indicate the side, the A4 / 90 ° turn mode is transmitted to the unit 288 (288).

If the size is B, step 28, and step 27 above.
Similarly, the mode is transmitted to the unit 20 according to the size and the like. Step 27: A2 to B3, A3 to B4, A4 to B5
The contents of step 28 can be read as

As described above, when the unit 20 is ready, the unit 10 gives the control operation mode instruction to the unit 20,
It will be set in 20 microprocessors.

The CPU 14 of the unit 10 then proceeds to the blade folding mode setting (29) in FIG. 7d. In this step 29, first, the folding selection bit of the operation board register OBR is referred to (291,292,29).
Four). Then, when there is no folding, size data is attached and the passage is transmitted to the unit 30 (295). 4 folds, 2 folds,
In the case of JIS folding, the data of the size designation bit of the operation board register OBR and the data of the folding selection bit are transmitted to the unit 30 (293,296). This completes units 10 to 3
The control operation mode instruction is given to 0 and is set in the microprocessor of the unit 30.

When you finish setting the blade folding mode (29), CPU1 of unit 10
At 4, the punch mode is set (30).

In this, referring to the data of the size designation bit, the data of the folding selection bit and the data of the punch selection bit of the operation board register OBR (301 to 306, 308, 309),
Unit 40 when the final size is A4 and there is punch
Send A4 / punch mode to (307) and final size is B5
Moreover, when punching is present, the B5 / punch mode is transmitted to the unit 40 (310), and in other cases, the non-punch mode is transmitted to the unit 40.

When punch mode setting (30) is completed, CPU 10 of unit 10
At 4, the stamp mode is set (31).

In this case, referring to the stamp selection bit of the operation board register OBR (312), if it is 1 indicating the stamp, the unit 50 informs the unit 50 of the stamp selection bit, stamp position bit, issuer selection bit and The data of the drawing type selection bit is transmitted (313). If the stamp select bit is 0, it sends a non-stamp signal to unit 50.

When the stamp mode setting (31) is completed, the CP of unit 10
U14 sets the discharge mode (32).

In this case, referring to the paper discharge selection bit of the operation board register OBR (321), if it is 1, the unit 60 is instructed to discharge paper to the sorter (323), and if it is 0, it is instructed to discharge the tray. Yes (322).

When the setting (32) of the paper discharge mode is completed, it means that all the units 20 to 60 have been instructed to perform the control operation mode, and the CPUs of these units hold the respective received instructions (mode data).

The CPU 14 of the unit 10 then returns to step 24 of FIG. 7b and goes through step 24 to step 25. Here, since the data in the previous operation board register POBR matches the data in the operation board register OBR due to the execution of the preceding step 26, the process proceeds from step 25 to 33. In step 33, all the indicator lamps of the abnormality display panel 33 are turned off, the standby indicator lamps of the operation board 12 are turned off, and the ready indicator lamps are turned on. Next, the ready signal is output and set to the copying machine 800 (34). Then, returning to step 5 in FIG. 7a, the arrival of a signal from the copying machine 800 and the key-in of the operation board 12 are waited for.

When the start signal arrives from the copier 800 (6), the ready / standby bit of the operation board register OBR is referred to (3
5) If it is 1, normal operation is possible, so start signals are sequentially transmitted to the units 20 to 60 at a predetermined timing (37). Then, again, the process proceeds to the state reading below the step. Upon receiving the start signal, each of the units 20 to 60 starts driving the transport roller and waits for the arrival of the paper at the sensor. When the paper arrives, a predetermined control operation is started.

Before or after the control unit 10 gives a start signal to the units 20 to 60, if the unit 20 is in standby (cannot process) or is in standby, the CP of the unit 10
U14 reads this in step 14 of FIG. 7b, and proceeds to the abnormality processing (15) of the unit 20. In this abnormality processing, first, the copier input bit of the operation board register OBR is referred to (151). If it is 1, data is received from the copying machine 800 and an abnormality (standby) is transmitted to the copying machine 800 because the sheet processing has started or has already started (152).
Then, the ready / standby bit of the OBR is set to 0 indicating that the operation is not possible, the ready indicator lamp of the operation board 12 is turned off, and the standby indicator lamp is turned on (153). Next, the abnormal data is received from the unit 154 (154), and if the abnormal data indicates a paper jam, the abnormal display panel corresponding to the position data is displayed.
13 Turn on the upper indicator lamp (156). When the abnormal data indicates that it is not a paper jam, all the indicator lights of the display panel 13 associated with the abnormal mechanism unit are turned on (15
7). Then, the process returns to the state reading after step 5 in FIG. 7a.

Before or after the control unit 10 gives a start signal to the units 20 to 60, if the unit 30 is in a standby state (not processable) or in a standby state, the CP of the unit 10
U14 reads this in step 16 of FIG. 7b, and proceeds to the abnormality processing (17) of the unit 30. This abnormality processing (17) is similar to the above-mentioned abnormality processing (15). However, unit 20 of (15)
Should be read as unit 30.

Before or after the control unit 10 gives a start signal to the units 20 to 60, if the unit 40 is in a standby state (not processable) or in a standby state, the CP of the unit 10
U14 reads this in step 18 of FIG. 7b, and proceeds to the abnormality processing (19) of the unit 40. This abnormality processing (19) is the same as the above-mentioned abnormality processing (15). However, unit 20 of (15)
Should be read as unit 40.

Before or after the control unit 10 gives a start signal to the units 20 to 60, if the unit 50 is in standby (cannot process) or is in standby, the CP of the unit 10
The U14 reads this in step 20 of FIG. 7b, and proceeds to the abnormality processing (31) of the unit 50. This abnormality processing (21) is the same as the above-mentioned abnormality processing (15). However, unit 20 of (15)
Should be read as unit 50.

Before or after the control unit 10 gives a start signal to the units 20 to 60, if the unit 60 is in standby (cannot process) or is in standby, the CP of the unit 10
U14 reads this in step 22 of FIG. 7b, and proceeds to the abnormality processing (23) of the unit 60. This abnormality processing (23) is the same as the above-mentioned abnormality processing (15). However, unit 20 of (15)
Should be read as unit 60.

The operation of the vertical folding mechanism unit 100 provided by the vertical folding & 90 ° turn control unit 20 has been described in the mechanism description section. Therefore, the description of the control operation of the unit 20 will be omitted here because it is redundant.

It should be noted that in the above embodiment, the fixed registers 178 and 154
The movable registers 126 and 156 are fixed, although their positions can be adjusted with screws. If the triangular shape of the end face folding can be adjusted for each paper size, the movable register 12
The 6 and the shaft body 128 and the solenoid 130 are attached to the carriage so that the carriage can be adjusted in position by a screw or the like. Alternatively, the carriage is driven by a motor to automatically set the position. When assigning several types of folding shapes to one size, a plurality of movable registers may be provided for each size, and one of them may be selectively driven to the paper stop position. The other registers 178, 156 and 154 may be similarly configured.

Next, the excellent points of the above-described embodiment will be summarized and described.

(1) The edge of the folding plate 197 on the side of the push plate 138 is a substantially knife edge with the lower surface inclined (dotted line) so that the paper PR (two-dot chain line) can be folded and easily gripped. Also, folding plate
The tip of 197 is shaped like a "shi" to prevent the escape of paper. When the folding plate 197 moves to the right, the triangular portion of the paper PR is gradually raised by the long straight portion 197a of the folding plate 197 and stands up, while the folding plate 197 has a "shi". A short substantially straight line portion 197c corresponding to the splashed portion of the character crosses the second side SE of the paper PR upward, and this short substantially straight line portion 197c is the second side of the paper PR.
Move to the right while holding the rise of SE. The long straight line portion 197a of the folding plate 197 gradually raises the second side SE of the paper PR from a position near the apex of the triangular folding corner, while the short substantially straight line portion 197a.
197c presses the second side SE of the paper in a direction gradually approaching the corner apex from a position farther from the triangular folding corner apex, so that the bent bottom 197b of the "shi" shape is finally the second side of the paper PR. SE
A fold start point is formed on the second side SE at the point of hitting, and the fold starts to move in the direction of the push plate 138 from this fold start point (fifth point
i diagram). That is, the position (the position on the second side SE) where the bent bottom 197b of the “Shi” shape hits the second side SE of the paper PR is the second side SE.
It becomes the starting point of the upper fold, and the fold appears there. Before and after that, the first side FE of the paper erected by the straight line portion 197a having a long “shi” character is blocked by the left edge of the pressing plate 138 and starts to be folded. That is, a turning point is formed on the first side FE.
As the folding plate 197 moves further to the right, the second side S of the paper PR
From the above-mentioned start point of E, the fold-back proceeds in the length direction of the push plate 138, and from the above-mentioned fold-start point of the first side FE, the fold-back also proceeds toward the inside of the paper PR, and the fold-back triangle of the paper PR. At the position where the folding plate 197 presses the shape part to some extent, the fold line extending from the origami of the first side FE and the fold line extending from the fold start point of the second side SE are continuously aligned, and the triangular part of the paper PR is pressed exactly. It is folded back on the plate 138.

(2) In the vertical folding mechanism unit 100, a paper transport path that does not require vertical folding and a paper transport path that requires vertical folding are separated, and a paper guide gate is disposed between them to prevent vertical folding. Since the paper is directly sent to the next unit, the paper feeding speed can be made extremely high, and the jam ratio is lowered. Switching between a paper transport path that does not require vertical folding and a paper transport path that requires vertical folding is simple, and both the mechanism and the paper feed control operation are simple.

(3) Paper transport paths (rollers 104, 108) that do not require vertical folding,
Since the vertical folding paper feed path (vertical folding rollers 116, 118, 120) is formed in a horizontal T shape, the subsequent sheet posture processing is easy and the vertical folding mechanism unit 100 is compact.

(4) In the vertical folding mechanism unit 100, the vertical folding of the A and B plates can be selected only by adding a movable register. Highly versatile for paper size.

(5) The end face folding (corner part three-sided folding) is performed by the pressing plate 138 and the folding plate 197, compared to the case where a roller or the like is used.
The fold shape is accurate. Switching between the A plate and the B plate is performed only by the movable register, and the paper feed control is extremely simple as compared with the case where a roller or the like is used.

〔The invention's effect〕

As described above, the pressing plate (138) presses the sheet (PR), and further, the movement of the folding plate (197) causes the bending portion (197b) of the "shi" -shaped portion to pass through the paper (PR). A folding start point is formed on the second side (SE), and further, the pressing plate (138) and the folding plate (197) form a folding start point on the first side (FE) of the paper (PR), and the folding plate (197).
By folding the paper, the paper is folded back so as to connect the two starting points, so that the triangular folding can be reliably performed, the folding line is accurate, and an accurate folding shape can be obtained.

The control means (10, 30) determines whether or not the end face must be folded according to the sheet size and the folding type, and when the end face must be folded, the register (126) corresponding to the sheet size is set through the register driving means (130). Since the seat (PR) is positioned at the seat stop position by the register (126), the above-mentioned seat (P)
R) The corner folds of the corners of the corners are automatically selected as appropriate, and even in the case of sheets of different sizes, the edge folds described above are automatically performed at the predetermined positions corresponding to each size. Accurately obtained.

[Brief description of drawings]

FIG. 1 is a front view showing a state in which a front cover is removed and a front cover plate of a paper discharge mechanism unit 700 is removed of a sheet processing machine 900 equipped with an end folding device according to an embodiment of the present invention. is there. FIG. 2 is an external perspective view showing a most recommended use state in which the sheet processing machine 900 is connected to the copying machine 800 and the sorter 1000 is connected to the sheet processing machine 900. FIGS. 3a and 3b are plan views of paper and show the paper processing state in the sheet processing machine 900 and the copying machine 800. FIG. 4 is a front view showing a main part of the mechanism of the sheet processing machine, and corresponds to an enlarged view in which the unit cover is removed in the state of FIG. FIG. 5a is an enlarged perspective view showing the main mechanical elements of the vertical folding mechanism unit 100 of the sheet processing machine 900, which is an embodiment of the present invention. FIG. 5b is an enlarged plan view of the folding plate 197 shown in FIG. 5a. FIG. 5c is a sectional view taken along the line VC-VC of FIG. 5b. FIG. 5d is a sectional view taken along line VD-VD of FIG. 5b. FIGS. 5e, 5f, 5g and 5i are plan views of the paper sent to the paper transport surface of the vertical folding mechanism unit 100, and show different operating states of the unit 100, respectively. FIG. 5h is a perspective view showing a mechanism portion of another embodiment of the present invention. FIG. 6a is a block diagram showing the upper surface of the operation board 11 of the sheet processing machine 900 in an enlarged manner and showing the configuration of the electric control system in blocks. FIG. 6b is a plan view showing the memory contents of a register in which the operation board control unit 10 shown in FIG. 6a stores state data, sheet processing instruction data and the like. 7a, 7b, 7c and 7d are flow charts showing the control operation of the operation board control unit 10 shown in FIG. 6a. 1, 2 and 4 800: Copying machine, 900: Sheet processing machine 1000: Sorter, ET: Paper ejection tray 11: Operation board, 100: Vertical folding mechanism unit 190,192: Handshake for pulling out, 180: Grip for driving jam paper discharge 801: Direction of arrival of paper to be processed, 200: 90 ° turn mechanism unit 239: Handshake for pulling out paper, 21: Grip for driving jam paper discharge 237: Switch for directing jam paper cut 300: Blade folding mechanism unit, 388: Handshake for pulling out drawer 386: Grip for driving jam paper ejection 390: Switch for instructing to cut jam paper 400: Punch mechanism unit, 474: Handshake for pulling out jam paper 472: Handgrip for driving jam paper ejection 476: Switch for cutting jam paper 500: Stamp mechanism unit, 598: Handshake for drawer 600: Vertical transport mechanism unit, 636: Handshake for drawer 634: Grip for driving jam paper discharge 700: Paper discharge mechanism unit, 701: Tray ejection direction 703: Sorter ejection direction Fig. 5a to 5h Fig. 1 03: Paper feed direction, PR: Paper FE: First side, SE: Second side 104,108,162,166: Roller, 116,118,120: Vertical folding roller 165,169: Steel ball, 112: Gate claw 154,178: Fixed register, 126,156: Movable register 114,124,130,150,160: Solenoid 164: Steel ball solenoid, 136: Half-rotation clutch 197: Folded plate, 138: Push plate 193,199: Guide bar, 196: Link arm 140: U-shaped frame, 198: Carridge 1444, 145: Tension spring, 174,176: Paper sensor 98: Lever, 97: Fixed pin 99: Engagement pin Fig. 4 204,208,212,216,286,292,218,222,226,230,242,250,25
4,272,276,280,284,207,211: Paper feed roller 234,238: 90 ° turn roller, 235,262,264: Fixed register 266: Movable register, 270,299: Solenoid 220,224,274,228,232,236,240,278,244,252,295,291,25
6: Steel ball solenoid 223: Cutter, 229: Motor 231: Switch, 299,297: Rotary encoder 217,219,221,233: Paper sensor

Claims (11)

[Claims] 1. A standby position, which is located below a corner where a first side parallel to a predetermined direction of a sheet extending in a predetermined direction and a second side orthogonal to the first side intersect, and the first side and the second side. A straight line portion where the sides intersect, and a curved line portion which is continuous with the straight line portion at a position extending outside the second side from the second side, bends toward the second side, and has a tip outside the second side of the sheet. A folding plate having a "shi" shape and having a folding edge having a downwardly facing tapered surface for guiding the sheet downward; a folding plate located above the sheet in the standby position, The intersection of the extension line of the side closer to the folded plate and the second side of the sheet, which is inside the sheet with respect to the side, is
A push plate extending substantially parallel to the linear portion so that the bending point of the curved portion of the "shi" shape on the second side hits or is close to the bending point; A presser driving means for driving the presser plate down to a presser position; a folder for driving the fold plate in parallel with the seat surface after the press plate is moved to the press position until at least a folding edge of the fold plate is located on the fold plate. Driving means; The folding plate is driven by the folding driving means, and the folding plate is positioned above the pressing plate through the sheet folded by the folding plate, and then the folding plate is driven by the folding driving means. Retracting drive means for driving the folded sheet in the same direction until it passes under the folded sheet; Folding plate returning drive means for driving the folding plate to the standby position; Upward returning for driving the pushing plate up Drive means; Drives the push plate to the standby position Horizontal return drive means; a plurality of registers including at least one movable register that moves to a seat stop position and a retracted position to stop and restrain a fourth side of the seat that faces the second side; Register driving means for determining whether or not end face folding is necessary according to sheet size and folding type,
When the end face is required to be folded, a register corresponding to the sheet size is placed at the sheet stop position through the register driving means, the sheet is positioned by the register, and the pressing drive means, folding drive means, retraction drive means, folding plate return drive are performed. A sheet end face folding device, comprising: a means, an upward return drive means, and a lateral return drive means for urging the sheet to bend the corner portion of the sheet into a triangular shape. 2. The control means comprises a main control means for reading an externally input signal to determine the operation mode of the end face folding mechanism, and a sub-control means for controlling the operation of the mechanism element according to the determined operation mode. The sheet end face folding device according to claim (1). 3. The main control means reads the signal from the key-in of the operation board and the host, and when both are duplicated, the signal from the host is preferentially read to determine the operation mode of the end face folding mechanism, and the operation is performed. Give the mode to the secondary control means,
The end folding apparatus according to claim (2), wherein the sub control means gives the state of the end folding mechanism to the main control means, and the main control means displays the state of the end folding mechanism on the display panel. 4. The seat end surface folding device according to claim 1, wherein the folding driving means is a link arm and a half-rotation clutch connected to the folding plate via the link arm. 5. The retracting drive means is an interlocking member which is pushed by the folding plate by the folding driving means to move the pushing plate in the same direction by the driving of the folding plate, and the lateral return driving means moves the pushing plate toward the standby position. The sheet edge folding device according to claim (1), which comprises a spring member that gives a returning force. 6. The presser drive means is a member that is driven by a solenoid and a solenoid bias to drive the press plate downward.
The sheet end folding device according to claim (1), wherein the upper return drive means is a spring member that gives a upward returning force to the push plate. 7. The folding drive means comprises a guide bar, a carriage mounted on the guide bar and having a folding plate fixed thereto, a half-rotation clutch, and a link connecting the output shaft of the half-rotation clutch and the carriage. The sheet edge folding device according to item (1). 8. The retracting drive means comprises a guide bar, a push plate support mounted on the guide bar and pushed by the forward movement of the carriage of the folding drive means, and the lateral return drive means returns to the push plate support in the opposite direction. The sheet end surface folding device according to claim (7), which comprises a spring member that applies a driving force. 9. The retracting drive means has one end engaged with a guide bar, a push plate support mounted on the guide bar, and a push plate support.
The other end is a rotator pivotally attached to the pin, the both ends being a rotator pushed by the carriage of the folding drive means, and the horizontal return drive means is a spring member for giving a force for returning the reverse direction to the push plate support. A sheet end face folding device according to claim (7). 10. The pressing drive means comprises a solenoid and a link arm for rotationally driving the pressing plate support in one direction, and the upper return drive means comprises a spring member rotationally driven in the opposite direction. The sheet end face folding device according to claim (1). 11. The seat end folding device according to claim 1, wherein the register driving means is a solenoid that rotationally drives a movable register.