JP2792641B2 - Continuous paper printer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a continuous paper printing apparatus, and more particularly, to a tension adjusting mechanism thereof.

[0002]

2. Description of the Related Art Japanese Patent Publication No. 5-4904 discloses a printing apparatus with a tension adjusting device for preventing "slumping" of printing paper.

The printing device is a device for printing a predetermined business form or the like on continuous paper. The printing device A is a state where the impression cylinder is separated from the blanket cylinder (hereinafter referred to as a cylinder-off state). And the "bulge" of the printing paper A that occurs when the notch of the impression cylinder faces the blanket cylinder in a state where the impression cylinder is not separated from the blanket cylinder (hereinafter, referred to as a cylinder insertion ON state). To prevent this, a tension adjusting device is provided. That is, the tension adjusting device is in the ON state when the trunk is in the OFF state. on the other hand,
The tension adjusting device is normally in the OFF state in the cylinder insertion ON state, but is in the ON state when the notch of the impression cylinder faces the blanket cylinder. This makes it possible to prevent the print paper A from "warping".

The mechanism of the printing apparatus will be described with reference to FIGS. Referring to FIG.
When the cam follower 28a comes into contact with the high place 80a, the cam lever 28 swings around the stud 37 in the direction of the arrow α1. The operation is transmitted to the arm 39 by the link 38. The arm 39 swings about the shaft 39a in the direction of the arrow α2. Here, the impression cylinder shaft 42 is
In the figure, the impression cylinder shaft 42 is eccentrically held to the right of the shaft 39a.
Swing in two directions. As a result, the impression cylinder 3 is turned on.

A description will be given, with reference to FIG. FIG. 10 is an arrow view from the opposite side (operation side) of FIG. When the arm 39 shown in FIG. 9 swings in the direction of the arrow α2, the lever 51 shown in FIG. 10 swings in the direction of the arrow β1. If the solenoid 50 is ON, the latch 49 is held in the state shown in FIG. Therefore, the engaging portion 51a of the lever 51 is held by the engaging portion 49a of the latch 49, and the body-insertion ON state is held.

Simultaneously with the loading ON state, the lifter 2 shown in FIG. 9 swings about the lifter shaft 10 in a direction in which no tension is applied to the printing paper A, as described below.

When the cam follower 28a comes into contact with the high place 80a of the barrel insertion cam 80 and the cam lever 28 swings in the direction of the arrow α1, the second arm means D is connected via the link 27.
Swings about the pin 18 in the direction of the arrow α4. As a result, the lifter 2 swings around the lifter shaft 10 in a direction in which no tension is applied to the printing paper A.

Thus, in this printing apparatus,
Simultaneously with the ON state, the lifter 2 serving as the tension adjusting device is turned OFF.

In the ON state of the cylinder, the tension adjusting device may be normally in the OFF state. However, when the cutout portion of the impression cylinder 3 faces the blanket cylinder 4, the tension adjusting device is in the ON state. There is a need to. Because
This is because the diameter of the notch of the impression cylinder 3 is smaller than that of the other portions.

In the printing apparatus, the following is performed.
The lifter 2 swings around the lifter shaft 10 in the direction in which tension is applied to the printing paper A, so that the tension adjusting device is turned on even in the case where the bin insertion is turned on.

A cam follower 19 is provided at a high position 24a of the cam 24.
When a comes into contact, the cam lever 19 swings about the stud 20 in the direction of the arrow α5. As a result, the first arm means C swings about the pin 18 in a direction opposite to the arrow α4 direction. As a result, the lifter 2 swings around the lifter shaft 10 in the direction in which tension is applied to the printing paper A.

To set the impression cylinder 3 in the cylinder off state, the solenoid 50 shown in FIG. 10 is turned off. As a result, the latch 49 swings in the direction of the arrow β2, and the engaging portion 51a of the lever 51 and the engaging portion 49a of the latch 49 are disengaged. In this state, the cam 80 shown in FIG. 9 rotates, and the cam follower 28
When a comes into contact, the cam lever 28 swings in the direction opposite to the direction of the arrow α1. As a result, the arm 39 swings about the shaft 39a in the direction opposite to the arrow α2 direction, and the impression cylinder 3 is turned off.

When the impression cylinder 3 is turned off, the second arm means D is connected to the arrow α4 via the link 27.
The lifter 2 swings around the lifter shaft 10 in the direction in which the print paper A is tensioned in the direction opposite to the direction.

As described above, in the printing apparatus, the "tension" of the printing paper A can be prevented by the tension adjusting device. Therefore, transfer of the ink adhering to the blanket cylinder 4 to the printing paper A and printing stains can be prevented.

[0015]

However, the above printing apparatus has the following problems. For example,
At the time of a test run or the like, the printing apparatus is operated with the solenoid 50 shown in FIG. 10 being turned off (OFF). Even during such a test operation, when the cylinder insertion cam 80 rotates, the impression cylinder 3 repeatedly switches between the cylinder insertion OFF state and the cylinder insertion ON state. In conjunction with this, the tension adjusting device repeats the ON state and the OFF state. As a result, the printing paper A is pulled, the feed hole (not shown) of the printing paper A engaging with the pins provided on the tractors 1a and 1b becomes large, and the registration of the printing image on the printing paper A ( (Foresight) shifts.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above problems and to provide a continuous paper printing apparatus capable of printing at a correct position on a printing paper.

[0017]

According to a first aspect of the present invention, there is provided a continuous sheet printing apparatus comprising: A) discharging a continuous sheet having a feed hole from a sheet feeding side of an impression cylinder;
Continuous paper feed means for feeding the side, B) the rotary shaft that rotates in conjunction with the impression cylinder, C) rotating the linear transformation means for changing rotary motion into linear motion of said rotary shaft, D) transmitting the linear motion as the print-on force And E) a first transmitting means for connecting the rotary linear conversion means and the cylinder inserting means, wherein the first transmitting means connects the rotary linear conversion means and the cylinder inserting means. A first transmitting means configured to be able to switch the second state; e1) a first state in which the charging force is not transmitted to the charging means; e2) a transmitting force to the charging means. A second state; F) tension applying means for applying tension to the continuous paper, the tension applying means maintaining the following conditions f1) to f3); f1) continuous when the impression cylinder oscillating power is not transmitted. F2) When tension is applied to the paper, f2) If the state is scheduled to be cut off, no tension is applied to the continuous paper. F3) In the state where the impression cylinder oscillating power is transmitted, if the tension is to be applied, the state where tension is applied to the continuous paper. A second transmission means for transmitting the impression cylinder oscillating power to the tension applying means when the impression cylinder oscillating power is transmitted from the means.

[0018] In the continuous printing machine for printing on an impression cylinder, the rotating shaft is a blanket cylinder shaft which rotates in conjunction with the impression cylinder. A cam provided on the trunk shaft, and an arm swinging about the second swing fulcrum by the cam; and C) the first transmission means has the following e1) to e7). And c1) a first swinging piece that is swingably attached to a first swinging fulcrum, wherein the first swinging piece is configured to be in a bent state or an extended state in the following e8) or e9). A first rocking piece having a first pressing portion and a second pressing portion; i) when a pressing force is applied, the relationship between the first rocking piece and the second rocking piece changes in the first direction. A first pressing portion in which the first rocking piece rocks so as to be in the bent state; ii) when a pressing force is applied, the first rocking piece and the second rocking piece
A second pressing portion for swinging the first swinging piece so that the relationship with the swinging piece is at least an extended state from the bent state in the second direction; c2) an impression cylinder swinging power of the body inserting means; A second swinging piece pivotally mounted at a point; c3) a connecting portion for swingably connecting the first swinging piece and the second rocking piece; c4) a connecting point of the impression cylinder swinging power point. First biasing means for directly or indirectly biasing in a direction approaching the first swing fulcrum; c5) swingably connected to an end point of the arm opposite to a side abutting on the cam; A movable piece, c6) switching means for switching the state of the movable piece to the following state i) or ii), i) applying a pressing force to the first pressing portion when the swinging operation of the arm is transmitted. A first movable piece state, ii) a second movable piece state that applies a pressing force to the second pressing portion when the swinging operation of the arm is transmitted, c7) the movable piece Second biasing means for directly or indirectly biasing to the first movable state, c8) in a first direction which is one side of a straight line connecting the first swing fulcrum and the impression cylinder swing power point, Positioning the first rocking piece and the second rocking piece in a bent state; c9) the first rocking piece and the second rocking piece are positioned in a direction opposite to the first direction; 2) positioning the first rocking piece and the second rocking piece in an extended state that is at least extended from the bent state in the direction of 2); It is characterized in that when applied to a power point, the impression cylinder provided at the impression cylinder swing operation point swings about the impression cylinder swing support point.

[0019]

In the continuous paper printing apparatus according to the first or second aspect, the rotation linear conversion means changes the rotation of the rotation shaft into a linear movement. The first transmitting means does not transmit the operation of the linear motion to the body inserting means in the first state. Therefore, even if the impression cylinder rotates, the state in which the tension applying means applies tension to the continuous paper or the state in which no tension is applied to the continuous paper does not repeat.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [Structure of Continuous Paper Printing Apparatus] FIGS. 1 and 2 are schematic structural views of an impression cylinder body inserting section in a continuous paper printing apparatus 5 according to one embodiment of the present invention. As shown in FIG. 1, the impression cylinder body insertion section includes a blanket cylinder shaft 4a, a continuous paper feeding means M, a rotation linear conversion means J, a first transmission means K , and a body insertion means L.

The blanket cylinder shaft 4a forms a rotating shaft that rotates in conjunction with the impression cylinder 3. The continuous paper feeding means M is, like the conventional printing apparatus (see FIGS. 9 and 10), a tractor 1.
a, 1b, and feeds the continuous paper A to the paper feed side P of the impression cylinder 3.
1 to the discharge side P2.

Next, the rotation linear conversion means J, the first transmission
The means K 1 and the cylinder inserting means L will be described below with reference to the detailed view of the impression cylinder inserting section in FIG.

The rotation linear conversion means J includes a cam 30 and an arm 60 provided on the blanket cylinder shaft 4 a of the blanket cylinder 4. The arm 60 has an L-shape as shown in FIG. 4 and is swingably connected around a stud 59 which is a second swing fulcrum.

The first transmitting means K includes a ram 62 as a movable piece, an arm 64 as a first swinging piece, a stud 63 as a first swinging fulcrum, a pin 65a as a connecting portion, and positioning means. A stopper 66, a spring 68, a spring 69, and a link 67 as switching means are provided.

The piercing arrow 62 is swingably attached to a pin 61 provided at an end point of the arm 60 opposite to the side contacting the cam 30. The protruding arrow 62 is urged in the direction of arrow γ1 by a spring 69 as a second urging means.

The arm 64 will be described with reference to FIGS. The arm 64 includes a main body 64c, a roller 64a as a first pressing portion, a roller 64b as a second pressing portion,
And a roller mounting plate 64d. As shown in FIG. 7, the arm 64 is attached to the stud 63 so as to be swingable. When a pressing force is applied to the roller 64a or the roller 64b, the arm 64 moves the stud 6 as shown in FIG.
With the fulcrum 3 as a fulcrum, it swings in the direction of arrow γ2 or in the opposite direction. The swing operation in the direction of the arrow γ2 or in the opposite direction is restricted by the stopper 66 to a predetermined swing amount.

The link 65 is swingably attached to a pin 48b, which is a power point of the impression cylinder swing of the body inserting means L (see FIGS. 4 and 7). The arm 64 and the link 65 are swingably connected by a pin 65a which is a connecting portion.

The link 67 connects the solenoid 50 and the arrow 62 as shown in FIG. Link 67
When the solenoid 50 is turned on, it is pulled in the direction of arrow γ3 in FIG. As a result, the arrow 62 swings in the direction of the arrow γ3 with the pin 61 as a fulcrum. When the solenoid 50 is turned off, the thruster 62 is pulled by the spring 69 and swings in a direction opposite to the direction of the arrow γ3.

Referring back to FIG.
8, an eccentric shaft 48a is provided (see FIGS. 4 and 7). The body insertion means L is connected to the link 65 by a pin 48b. When a force is applied to the pin 48b in the direction of arrow γ4, the arm 48 swings in the direction of arrow γ5 with the eccentric shaft 48a as a fulcrum.

The impression cylinder shaft 42 of the impression cylinder 3 is eccentrically provided on the right side of the center of the eccentric shaft 48a (see FIGS. 4 and 7). Therefore, when the arm 48 swings in the direction of the arrow γ5 around the eccentric shaft 48a as a fulcrum, the impression cylinder 3 swings in the direction of the arrow γ5, and the cylinder is turned on. That is,
In the present embodiment, the impression cylinder shaft 42 is a point for the impression cylinder swinging operation.

In this embodiment, the first biasing means is constituted by the weight of the spring 68 and the impression cylinder 3. Therefore, as shown in FIG. 4, the arm 48 is urged in the direction opposite to the direction of the arrow γ4. The spring 69 and the arrow 62 constitute a second urging means.

The structure of the impression cylinder housing portion is substantially the same as the printing device described in Japanese Patent Publication No. 5-4904. This will be briefly described below.

As shown in FIG. 1, the eccentric shaft 48a is held by an arm 53 on the operation side. Arm 5
3 is provided with a resilient force by a block 56 provided on the frame 40 and is supported. The same holds for the non-operation side.

As shown in FIG. 2, the printing apparatus 5
It has a tension adjusting function N as a tension applying means. The tension adjusting function N includes a lifter shaft 10 to which the plate-like lifter 2 is fixed,
The first arm means C, the second arm means D, the first tension applying means E, the second tension applying means F, and the tension force adjusting means G. .

Hereinafter, description will be made with reference to FIGS. In FIG. 3, pins, studs, and the like are abbreviated by dashed lines.

As shown in FIG. 3, the lifter shaft 10
Between the impression cylinder 3 and the tractor 1a, the frame is rotatably mounted on the frames 40 and 41 below the printing paper A. FIG.
As shown in (2), when the lifter shaft 10 rotates, the lifter 2 applies tension to the printing paper A from below.

Next, the urging means B will be described. As shown in FIGS. 2 and 3, the arm 11 fixed to one end of the lifter shaft 10 is provided with a spring hook 13, and the frame 41 is provided with a spring hook 14. Spring 1
5 connects the spring hook 13 and the spring hook 14 in a tension state. Thereby, as shown in FIG. 2, a force for rotating the lifter shaft 10 in the α4 direction is applied through the arm 11, and a force is applied such that the leading end of the lifter 2 moves away from the back surface of the printing paper A.

Next, the first arm means C will be described. As shown in FIG. 3, the arm bracket 16 is supported on the frame 41 by the stud 17 so as to be swingable in the direction of arrow α4 or arrow α5 in FIG. The first arm 21 is attached to the arm bracket 16 with the fulcrum pin 18 as shown in FIG.
In the direction of arrow α4 or in the opposite direction. As shown in the enlarged view of FIG. 8, the first arm 21 is given a spring force in the direction of the arrow α4 in FIG. 8 by the urging means B via the pin 12 fixed to the arm 11.

The second arm means D will be described. Second
The arm 25 is attached to the arm bracket 16 with the fulcrum pin 18 in the same manner as the first arm 21 by the arrow α4 or the arrow α
It is mounted so that it can swing in five directions. As shown in the enlarged view of FIG. 8, the second arm 25 is given a spring force in the direction of the arrow α4 in FIG. 8 by the urging means B via the pin 12 fixed to the arm 11.

The positional relationship between the first arm means C and the second arm means D is as shown in FIG.

Next, the first tension applying means E will be described. The arm 39 is, as shown in FIGS.
It is fixed to the impression cylinder shaft 42. Arm 39 and link 38
Are swingably connected by pins 39a. The link 38 is connected to the arm 28 by a pin 28a, and the arm 28 is connected to the frame 41 by a stud 37.
It is supported swingably. Note that one end of the first tension applying means E is connected to the second arm means D by a link 27 which is a second transmitting means. The other end is swingably connected to the arm 28.

The second tension applying means F will be described. As shown in FIG. 2 and FIG.
At 0, it is swingably held by the frame 41. FIG.
As shown in FIG. 7, a cam 24 having a high point 24a is fixed to the cam shaft 23. The cam 24 rotates in conjunction with the rotation of the impression cylinder 3 via an impression cylinder gear 34, idle gears 35 and 35a, and a gear 36 fixed to the cam shaft 23.

As shown in FIG. 2, a cam follower 19a rotatably supported at one end of the arm 19 abuts on a high place 24a of the cam 24, so that the arm 19 is stud 2
It swings in the direction of arrow α5 with 0 as a fulcrum. As shown in FIG. 3, the arm 19 is the first arm 2 of the first arm means C.
It is connected to 1. Therefore, when the arm 19 swings in the direction of the arrow α5 in FIG.
Swing in the opposite direction to the four directions.

The tension force adjusting means G will be described. A knob 33 is fixedly attached to the adjusting screw 32, and the tip of the adjusting screw 32 is attached to the arm bracket 16.
It is screwed into a screw hole provided in a pin 31 fixed to the pin 31. Therefore, when the knob 33 is rotated in the loosening direction, the arm bracket 16 swings in the arrow α4 direction with the stud 17 as a fulcrum in FIG. Thereby, the arm 11 swings in the direction of the arrow α4, and the highest point of the lifter 2 is lowered. Thus, the tension force on the printing paper A can be reduced. In order to increase the tension force, the knob 33 may be rotated in a screwing direction.

[Operation of Printing Apparatus 1] Next, the printing apparatus 5
Will be described. In FIG. 1, the solenoid 5
When 0 is in the OFF state, the arrow 62 is in the state shown in FIG. In this state, when the cam 30 rotates with the rotation of the blanket cylinder 4 as shown in FIG. 5, the cam follower 60a of the arm 60 comes into contact with the high place 30a of the barrel insertion cam 30. As a result, the dart 62 swings in the direction of FIG.
The ram 62 presses the roller 64 a of the arm 64. Even when such a pressing force is applied, since the arm 64 is positioned by the stopper 66, the state shown in FIG. 5 does not change and the impression cylinder 3 is not inserted.

As described above, in this apparatus, even if the blanket cylinder shaft 4a rotates in conjunction with the impression cylinder 3, if the solenoid 50 is in the OFF state, the cylinder insertion ON state and the cylinder insertion OFF state are repeated. There is no. Therefore, there is no need to increase the clearance between the impression cylinder shaft 42 and the impression cylinder bearing, and the rattling of both can be reduced and the durability can be increased. Further, when the clearance is small, the impression cylinder can be smoothly moved, so that the shock of the cylinder impression is small and the printing trouble is reduced.

Next, the solenoid 50 is turned on. In the present embodiment, turning on solenoid switch (not shown) (ON), altitude 3 of the print-on cam 30
Shortly before the cam follower 60a of the arm 60 comes into contact with 0a, the solenoid 50 is turned on.

Thus, from the state of FIG.
Swings in the direction of arrow γ3. When the cam 30 rotates and the cam follower 60a of the arm 60 comes into contact with a high position of the throwing cam 30, the dart 62 swings in the γ6 direction. Thus, the arrow 62 presses the roller 64b of the arm 64. As shown in FIG. 6, the arm 64 swings in the direction opposite to the γ2 direction, and the swing stops when the arm 64 hits the stopper 66. Thereby, as shown in FIG. 6, the arm 64 and the link 65 are changed from the bent state in FIG. 5 to an extended state at least extended from the bent state.

As described above, when the relationship between the arm 64 and the link 65 is changed from the bent state in FIG. 5 to the extended state in FIG. 6, the lever 48 is pivoted on the eccentric shaft 48a as shown in FIG. swings in the γ4 direction. Therefore, the impression cylinder shaft 42 swings in the direction of the arrow γ5 with the eccentric shaft 48a as a fulcrum, and enters the cylinder insertion ON state.

As described above, in this embodiment, the ON / OFF state of the solenoid 50 causes the piercing arrow 62 to swing, thereby changing the roller for applying pressure. Thereby, the relationship between the arm 64 and the link 65 changes from the bent state which is the first state as shown in FIG. 5 to a second state which is at least extended from the bent state shown in FIG. As a result, the impression cylinder oscillating power is applied to the lever 48, and the impression cylinder 3 swings to be in the cylinder ON state.

Next, the case insertion ON state and the case insertion OF
The holding of the F state will be described. In the bent state (the body insertion OFF state shown in FIG. 5), the pin 65a moves in the first direction (one side of the straight line S1 connecting the stud 63 and the pin 48b) (the side opposite to the blanket cylinder 4 side in FIG. 6). positioned. Here, the lever 48 is urged in the γ3 direction (the direction in which the pin 48b approaches the stud 63) by the weight of the spring 68 and the impression cylinder 3. Therefore, the body-insertion OFF state is maintained.

In the extended state (the case insertion O shown in FIG. 6).
N state), the pin 65a is connected to the first line
A second direction different from the direction of FIG.
Side). Here, the lever 48 moves (pin 4) in the γ3 direction due to the weight of the spring 68 and the impression cylinder 3.
8b toward the stud 63). Therefore, the barrel insertion ON state is maintained.

As described above, in this embodiment, the pin 6
5a is located on one side or the other side of the straight line connecting the stud 63 and the pin 48b, and the lever 48 is biased in a direction to bring the pin 48b closer to the stud 63 by the weight of the spring 68 and the impression cylinder 3. O
The N / OFF state is maintained. In other words, the ON / OFF state of the trunk insertion can be maintained without using a latch unlike the conventional method, so that the clearance management of the latch becomes unnecessary. Thereby, maintenance becomes easy.

The tension adjusting function is almost the same as the conventional method, but will be briefly described. When the impression cylinder 3 is in the cylinder off state, the tension adjustment function is in the ON state.

On the other hand, when the impression cylinder 3 is turned on, as shown in FIG. 2, the arm 28 is fixed to the α6 through the arm 39 and the link 38 fixed to the impression cylinder shaft 42.
Rocks in the direction.

As a result, as shown in FIG.
7, the second arm 25 of the second arm means D swings in the direction of the arrow α4. Accordingly, the arm 11 and the lifter shaft 10 swing about the pin 18 in the direction of the arrow α4, rotate the lifter 2 to a predetermined position, and turn off the tension on the printing paper A. That is, the trunk is ON
In this state, the tension adjusting mechanism is turned off.

Also in the case of the cylinder insertion ON state, as in the conventional case, when the cutout portion of the impression cylinder 3 is opposed to the blanket cylinder 4, the tension adjustment function needs to be turned ON. In this printing apparatus, the lifter 2
Swings around the lifter shaft 10 in the direction in which tension is applied to the printing paper A,
The tension adjustment mechanism is in the ON state.

In FIG. 8, when the cam follower 19a comes into contact with the high point 24a of the cam 24, the cam lever 19 swings around the stud 20 in the direction of the arrow α5. As a result, the first arm means C swings about the pin 18 in a direction opposite to the arrow α4 direction. Thereby, lifter 2
Swings around the lifter shaft 10 in the direction in which tension is applied to the printing paper A.

As described above, the tension adjusting function maintains a state in which tension is applied to the continuous paper in a state where the impression cylinder oscillating power is not transmitted. In the state in which the impression cylinder oscillating power is transmitted, if the tension is to be interrupted, the state in which tension is not applied to the continuous paper is maintained. For example, a state in which tension is applied to the continuous paper is maintained.

The height 24a of the cam 24 is as follows.
Only when the printing paper A is located at the notch (not shown) of the impression cylinder 3, the position and the circumferential length of the printing paper A may be determined so as to apply tension to the printing paper A.

[Other Application Examples] In this embodiment, the rotation linear conversion means is constituted by a cam and an arm.
The rotational motion is converted to linear motion by swinging the arm at a high position of the cam. However, the present invention is not limited to this, and may be anything as long as it converts the rotary motion into a linear motion. For example, the high point of the cam may directly press the dart.

In the above embodiment, the blanket cylinder shaft 4
Although the cam 30 is provided at a, the invention is not limited to this, and the cam 30 may be provided at any axis as long as the shaft rotates in conjunction with the impression cylinder 3.

In this embodiment, a blanket cylinder shaft is used as a rotating shaft that rotates in conjunction with the impression cylinder 3. Thereby, the whole can be made smaller without separately providing the rotating shaft. However, another rotating shaft may be separately provided as a rotating shaft that rotates in conjunction with the impression cylinder 3.

In this embodiment, the solenoid 5
At 0, the link 67 is moved to switch the state of the dart 62. However, any means capable of moving the link 67 may be used. For example, an air cylinder or manual operation may be used. Good.

In the present embodiment, the pin 48b is moved by the stud 63 by the gravity of the spring 68 and the impression cylinder 3.
The link 65 and the arm 64 are maintained in the bent state or the extended state in a direction in which the link 65 is approached. However, the present invention is not limited to this, and may be performed by another method.

In this embodiment, the spring 68 is hooked on the arm 48 and the pin 48b is indirectly biased in the direction of approaching the stud 63, but the spring 68 is hooked directly on the pin 48b. It may be. The spring 68
May be indirectly biased by another method instead of being hooked on the arm 48.

In the present specification, the term "biasing" is a concept including pressing and pulling an object using an elastic member such as a spring, an air cylinder, a hydraulic cylinder, gravity, or the like.

[0068]

In the continuous paper printing apparatus according to the first or second aspect, the rotation linear conversion means changes the rotation of the rotation shaft to a linear movement. The transmitting means does not transmit the operation of the linear motion to the body inserting means in the first state. Therefore, even if the impression cylinder rotates, the state in which the tension applying means applies tension to the continuous paper or the state in which no tension is applied to the continuous paper does not repeat. This makes it possible to provide a continuous paper printing apparatus that can print at the correct position on the printing paper.

[Brief description of the drawings]

FIG. 1 is a simplified configuration diagram of a continuous paper printing apparatus 5 according to an embodiment of the present invention as viewed from an operation side.

FIG. 2 is a simplified configuration diagram of the printing apparatus 5 viewed from a non-operation side.

FIG. 3 is a sectional view taken along line II of FIGS. 1 and 2;

FIG. 4 is a rotation linear conversion means J and a transmission means in FIG. 1;
FIG. 5 is an enlarged view of a portion K and a body inserting means L.

FIG. 5 is a diagram showing a state in which a dart arrow 62 presses a roller 64a in FIG. 4;

FIG. 6 is a diagram showing a state in which a dart arrow 62 presses a roller 64b.

FIG. 7 is a detailed explanatory view of a transmission means K.

FIG. 8 is a detailed view of a tension adjustment function unit.

FIG. 9 is a simplified configuration diagram of a conventional printing apparatus with a tension adjusting function as viewed from a non-operation side.

FIG. 10 is a simplified configuration diagram of a conventional printing apparatus with a tension adjusting function as viewed from an operation side.

[Explanation of symbols]

3 ... impression cylinder 4a ... blanket cylinder shaft 30 ... cylinder insertion cam 30a ... high place 48 ... Arm 48a Eccentric shaft 48b Pin 59, 63 Stud 60 Arm 60a Cam follower 61 · Pins 64a, 64b · · · Roller 62 · · · · Dart 64 · · · · Arm 65 · · · · · Link 65a · · · · Pin 66 · · · · · · ··· Stopper 67 ······· Link 68, 69 ··· Spring S1 ············································· .First transmission means L...

Claims (2)

(57) [Claims] 1. A) Continuous paper having a feed hole is discharged from a paper feed side of an impression cylinder.
Continuous paper feed means for feeding the side, B) the rotary shaft that rotates in conjunction with the impression cylinder, C) rotating the linear transformation means for changing rotary motion into linear motion of said rotary shaft, D) transmitting the linear motion as the print-on force And E) a first transmitting means for connecting the rotary linear conversion means and the cylinder inserting means, wherein the first transmitting means connects the rotary linear conversion means and the cylinder inserting means. A first transmitting means configured to be able to switch the second state; e1) a first state in which the charging force is not transmitted to the charging means; e2) a transmitting force to the charging means. A second state; F) tension applying means for applying tension to the continuous paper, the tension applying means maintaining the following conditions f1) to f3); f1) continuous when the impression cylinder oscillating power is not transmitted. F2) When tension is applied to the paper, f2) If the state is scheduled to be cut off, no tension is applied to the continuous paper. F3) In the state where the impression cylinder oscillating power is transmitted, if the tension is to be applied, the state where tension is applied to the continuous paper. And a second transmitting means for transmitting the impression cylinder oscillating power to the tension applying means when the impression cylinder oscillating power is transmitted from the means. 2. The continuous paper printing apparatus according to claim 1, wherein: A) said rotary shaft is a blanket cylinder shaft which rotates in conjunction with an impression cylinder; and B) said rotary linear converting means is provided on said blanket cylinder shaft. A cam provided, and an arm swinging about a second swing fulcrum by the cam. C) The first transmission means has the following e1) to e7), and C1) a first swinging piece that is swingably attached to a first swinging fulcrum, wherein the first pushing piece includes the following first pressing: A first rocking piece having a portion and a second pressing portion; i) when a pressing force is applied, the relationship between the first rocking piece and the second rocking piece changes the bending state in the first direction. A first pressing portion in which the first rocking piece is rocked so that the first rocking piece and the second rocking piece are pressed when a pressing force is applied.
A second pressing portion for swinging the first swinging piece so that the relationship with the swinging piece is at least an extended state from the bent state in the second direction; c2) an impression cylinder swinging power of the body inserting means; A second swinging piece pivotally mounted at a point; c3) a connecting portion for swingably connecting the first swinging piece and the second rocking piece; c4) a connecting point of the impression cylinder swinging power point. First biasing means for directly or indirectly biasing in a direction approaching the first swing fulcrum; c5) swingably connected to an end point of the arm opposite to a side abutting on the cam; A movable piece, c6) switching means for switching the state of the movable piece to the following state i) or ii), i) applying a pressing force to the first pressing portion when the swinging operation of the arm is transmitted. A first movable piece state, ii) a second movable piece state that applies a pressing force to the second pressing portion when the swinging operation of the arm is transmitted, c7) the movable piece Second biasing means for directly or indirectly biasing to the first movable state, c8) in a first direction which is one side of a straight line connecting the first swing fulcrum and the impression cylinder swing power point, Positioning the first rocking piece and the second rocking piece in a bent state; c9) the first rocking piece and the second rocking piece are positioned in a direction opposite to the first direction; 2) positioning the first rocking piece and the second rocking piece in an extended state that is at least extended from the bent state in the direction of 2); A continuous paper printing apparatus characterized in that, when given to a power point, the impression cylinder provided at the impression cylinder swing operation point swings about the impression cylinder swing support point.