JP2001018508A - Master base sheet roll holding device and master base sheet roll - Google Patents

Abstract

PROBLEM TO BE SOLVED: To rapidly confirm whether a held master base sheet roll is suitable or not by using the roll in a printer when the roll is held by a master base sheet roll holding device of the printer. SOLUTION: In the master base sheet roll holding device for a printer for holding a master base sheet roll 11 as a protrusion 14 externally protruding at one end side of a core 12, a recess 18 to be inserted with the protrusion 14 is formed on a holding portion 15 for holding the protrusion 14 side formed in a protruding size suitably different in response to a size, a type or the like of the master base sheet 12, and a length sensor 19 for sensing whether the protruding size of the protrusion 14 is suitable or not to be used in the printer is provided in the recess 18.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a master base paper roll holding device and a master base paper roll.

[0002]

2. Description of the Related Art Conventionally, in a plate making section provided in a printing apparatus, a master base paper roll in which a long master base paper is wound in a roll around a core such as a paper core is often used. The master is made by thermally perforating the master base paper drawn from the roll state, and the master is wound around the outer peripheral surface of the plate cylinder to perform printing.

Here, there are various types of master base paper rolls depending on the size and type of the master base paper.
Some are not suitable for use in each printing device. For this reason, it is necessary to be able to easily confirm whether or not the master base paper roll is suitable for use in a certain printing apparatus. One example is a flange having a structure as shown in FIG. A master roll holding device using a body 1 is known.

The flange body 1 includes a disk-shaped flange portion 2 and a holding shaft portion 3 fixed to one surface of the flange portion 2.
And a plurality of claw portions 4 fixed to the other surface of the flange portion 2. The outer diameter of the claw portion 4 is
The dimensions are set to be suitable for each printing device in which the flange body 1 is used.

The master base paper roll 5 used in each printing apparatus is formed by winding a long master base paper 7 around a hollow cylindrical paper core 6 in a roll shape. Are set to different values as appropriate according to the size and type of the master base paper 7 and the like. When the claw portion 4 of the flange body 1 provided in a certain printing apparatus fits tightly with the paper core 6 of the master base paper roll 5, the master base paper roll 5 is used in the printing apparatus. It can be confirmed that it is suitable for. On the other hand, when the outer diameter of the claw portion 4 of the flange body 1 is too large than the inner diameter of the paper core 6, or
If it is too small, it can be confirmed that the master stencil roll 5 is not suitable for use in the printing apparatus.

Further, as described in Japanese Utility Model Publication No. Hei 4-20608, a roll-shaped master base paper is wound around the outer peripheral surface of a core, and both ends of the core are wound on the end surface of the master base paper wound around the core. 2. Description of the Related Art There is known a master stencil roll holding device in which a protrusion is made to protrude from a portion, and the protrusions of the protrusion are made different on both sides to hold the protrusions at both ends of a core.

[0007]

In the master base paper roll holding device using the flange body 1 shown in FIG. 16, the claw portion 4 having a large outer diameter is forcibly pushed into a paper core 6 having a small inner diameter. The nail 4 may be broken.

When the claw 4 having a small outer diameter is inserted into the paper core 6 having a large inner diameter, the claw 4 is inserted into the paper core 6.
The master base paper roll 5 is not suitable for the printing apparatus after the printing is started by holding the master base paper roll holding apparatus as it is without noticing that it is not fitted perfectly. You may notice that. In such a case, the master base paper roll 5 is wasted, and work time is wasted.

In the master base paper roll holding device described in Japanese Utility Model Publication No. Hei 4-20608, the master base paper roll to be set in the printing apparatus is changed by changing the protrusion size of the protruding portion of the core on both sides of the master base paper roll. It can be prevented from being set in the opposite direction. However, it is impossible to confirm whether the size and type of the master base paper are suitable for the master base paper roll used in the printing apparatus.

According to the present invention, when a master base paper roll is held by a master base paper roll holding device of a printing apparatus, it is possible to promptly confirm whether or not the held master base paper roll is suitable for use in the printing apparatus. It is an object of the present invention to provide a master base paper roll holding device and a master base paper roll capable of performing the following.

[0011]

According to the first aspect of the present invention,
A master base paper in which a long master base paper is wound in a roll shape around a core body, and one end side of the core body is a protruding portion projecting outward from an end surface of the master base paper wound around the core body In a master base paper roll holding device of a printing device for holding a roll, a holding portion for holding the protruding portion side formed with appropriately different protruding dimensions, and a holding portion having a depth dimension corresponding to the protruding size of the protruding portion. Formed,
And a recess into which the protrusion is inserted.

Accordingly, when the master base paper roll is held by the master base paper roll holding device, if the protrusion of the protrusion is larger than the depth of the recess formed in the holding portion, the protrusion is in the recess. And that the master roll is not suitable for use.

According to a second aspect of the present invention, an elongated master base paper is wound around a core in a roll shape, and one end of the core is outside the end face of the master base paper wound around the core. A master base paper roll holding device of a printing apparatus that holds a master base paper roll that is a protruding part protruding toward the outside, a holding part holding the protruding part side formed with appropriately different protruding dimensions, and a holding part formed on the holding part. A recess into which the protrusion is inserted, and whether the protrusion dimension of the protrusion inserted into the recess is appropriate for the master base paper roll used in the printing apparatus. And a length detection sensor for detecting.

Therefore, when the master base paper roll is held by the master base paper roll holding device, the length of the protrusion is detected by the length detection sensor by inserting the protrusion into the recess of the holding portion, and the detection result is obtained. Thus, it is possible to quickly confirm whether or not the master stencil roll held by the master stencil roll holding device is suitable for use in the printing device.

According to a third aspect of the present invention, a long master base paper is wound around a core in a roll shape, and one end of the core is outside the end face of the master base paper wound around the core. A master base paper roll holding device of a printing apparatus for holding a master base paper roll which is a protruding part protruding toward the first side, a first holding part for holding the protruding part side formed with appropriately different protruding dimensions, and the first holding part A recess formed in the portion and into which the protrusion is inserted, and provided in the recess,
A length detection sensor for detecting that a protrusion dimension of the protruding portion inserted into the recess is equal to or more than an appropriate value for the master base paper roll used in the printing apparatus; and a protruding portion of the master base paper roll. Side, and is provided so as to be movable in the direction of coming and going with respect to the first holding portion, and the protrusion size of the protrusion is not more than an appropriate value as that of the master base paper roll used in the printing apparatus. And a second holding portion that is allowed to move to the lock position when

Therefore, when the master base paper roll is held by the master base paper roll holding device and the protrusion dimension of the protruding portion inserted into the recess is greater than or equal to an appropriate value for the master base paper roll used in this printing apparatus. Is detected by the length detection sensor, and when the protrusion dimension of the protrusion is smaller than or equal to an appropriate value for the master base paper roll used in this printing apparatus, the second holding unit moves to the lock position. Therefore, only when the protruding portion is detected by the length detecting sensor and the second holding portion is moved to the lock position, the master base paper roll held by the master base paper roll holding device is used by the printing device. It is possible to confirm that it is suitable for the user, and the confirmation can be performed promptly.

According to a fourth aspect of the present invention, a long master base paper is wound around a core in a roll shape, and one end of the core is outside the end face of the master base paper wound around the core. A master base paper roll holding device of a printing apparatus that holds a master base paper roll that is a protruding part protruding toward the outside, a holding part holding the protruding part side formed with appropriately different protruding dimensions, and a holding part formed on the holding part. The protrusion is inserted into the recess, and the protrusion is slidably attached to the holding portion along a direction in which the protrusion is inserted into and removed from the recess. A slide body which is pushed by an end face of the master base paper and slides to a predetermined position when the master base paper roll used in the apparatus is equal to or less than an appropriate value, and is provided in the recess. A first sensor for detecting that a protrusion dimension of the protrusion inserted into the recess is equal to or more than an appropriate value as that of the master base paper roll used in the printing apparatus; and a first sensor facing the slide direction of the slide body. And a second sensor for detecting that the slide body has slid to a predetermined position.

Therefore, when the master base paper roll is held by the master base paper roll holding device and the protrusion dimension of the protruding portion inserted into the concave portion is equal to or more than an appropriate value for the master base paper roll used in the printing apparatus. Is detected by the first sensor, and the slide body slides to a predetermined position when the protrusion dimension of the protrusion inserted into the concave portion is equal to or less than an appropriate value as that of the master base paper roll used in the printing apparatus. Is detected by the second sensor. Therefore, only when the detection by the first sensor and the second sensor is performed, it is confirmed that the master base paper roll held by the master base paper roll holding device is suitable for use in the printing device. And it can be confirmed promptly.

According to a fifth aspect of the present invention, a long master base paper is wound around a core in a roll shape, and one end of the core is outside the end face of the master base paper wound around the core. A master base paper roll holding device of a printing apparatus that holds a master base paper roll that is a protruding part protruding toward the main body, a holding part that holds the protruding part side of the core body formed to have appropriately different outer diameter dimensions, A concave portion formed in the holding portion and into which the protruding portion is inserted, and an outer diameter of the protruding portion provided in the concave portion and inserted into the concave portion, wherein the outer diameter dimension of the master base paper roll used in the printing apparatus And an outer diameter detection sensor that detects whether or not it is appropriate.

Therefore, when the master base paper roll is held by the master base paper roll holding device, the protruding portion of the core of the master base paper roll is inserted into the concave portion of the holding portion.
The outer diameter detection sensor detects the outer diameter of the protruding portion, and based on the detection result, whether the master paper roll held by the master paper roll holding device is suitable for use in the printing device. Confirmation can be performed promptly.

According to a sixth aspect of the present invention, in the master stencil roll holding device according to the fourth aspect, the outer diameter of the protrusion is set to a different value as appropriate, and the slide body has the outer diameter of the protrusion. Is pushed by the end face of the core body and slides to a predetermined position when the master base paper roll used in the printing apparatus is used, and the first sensor is inserted into the concave portion. This core is not detected when the outer diameter of the section is smaller than an appropriate value for the master base paper roll used in the holding device.

Therefore, when the master base paper roll is held by the master base paper roll holding device, the first sensor indicates that the protrusion dimension of the protruding portion is equal to or more than an appropriate value as that of the master base paper roll used in the printing apparatus, and This core is detected only when the outer diameter of the protruding portion is an appropriate value for the master base paper roll used in the printing apparatus. In the second sensor, the protrusion dimension of the protruding portion is equal to or less than an appropriate value for that of the master base paper roll used in the printing apparatus, or the outer diameter of the protruding section is the same as that of the master base paper roll used in the printing apparatus. The slide is detected only when the value is larger than the appropriate value. Therefore, only when the detection by the first sensor and the second sensor is performed, it is confirmed that the master base paper roll held by the master base paper roll holding device is suitable for use in the printing device. Yes, and the confirmation is made promptly.

According to a seventh aspect of the present invention, a long master base paper is wound around a core in a roll shape, and one end side of the core body is located outside the end face of the master base paper wound in a roll shape. In the master base paper roll having a protruding portion, the protruding portion or the outer diameter size of the protruding portion is set to an appropriately different value, and the other end side of the core does not protrude from the end surface portion of the master base paper.

Therefore, whether or not this master base paper roll is suitable for use in a certain printing apparatus can be confirmed by the length dimension and outer diameter dimension of the protruding portion. In addition, when the master base paper roll is stored or transported, the master base paper on the other end side of the core body is placed with the end face down, so that the lateral displacement of the master base paper wound in a roll shape is prevented. Can be prevented.

[0025]

FIG. 1 shows a first embodiment of the present invention.
A description will be given based on FIG. FIG. 1 shows a state in which a master base paper roll 11 is held by a master base paper roll holding device provided in a printing apparatus. In the master base paper roll 11, a long master base paper 13 is wound around a hollow cylindrical paper core 12 as a core in a roll shape, and one end side of the paper core 12 is wound around the paper core 12. The protruding portion 14 protrudes outward from the end face of the master base paper 13. In addition, in each master base paper roll 11,
The protrusion size “M” of the protrusion 14 is set to a value that is appropriately different depending on the size “L”, type, and the like of the master base paper 13. The inner diameter of the paper core 12 is formed to be constant in each master paper roll 11. In each master base paper roll 11, the other end of the paper core 12 is flush with the end surface of the master base paper 13.

The master base paper roll holding device includes a fixing flange 15 as a holding unit (first holding unit) for holding the protruding portion 14 of the master base paper roll 11, and a master base paper roll 1.
A movable flange 16 which is a second holding portion for holding the opposite side of the one protrusion 14 is provided.

The fixed flange 15 has a protruding shaft portion 17 fitted into the paper core 12 when the master base paper roll 11 is held by the master base paper roll holding device, and a ring shape around the protruding shaft portion 17. Recess 1 formed and into which paper core 12 is inserted
8 are formed. The outer diameter of the protruding shaft portion 17 is formed slightly smaller than the inner diameter of the paper core 12.
The depth dimension of the concave portion 18 is formed to be substantially the same as the projection dimension of the projection 14 of the master base paper roll 11 suitable for use in a printing apparatus provided with this master base paper roll holding device.

The movable flange 16 includes a disk-shaped flange portion 16a, a protruding shaft portion 16b fixed to one surface of the flange portion 16a and fitted to the paper core 12, and a flange portion 16a.
The slide shaft 16c is fixed to the other surface of the holder 20 and a rotation preventing shaft 16d. The slide shaft 16c is slidably attached to the slide hole 20a of the holder 20. The holder 20 is provided so as to be movable in a direction in which the holder 20 comes into contact with and separates from the fixed flange 15.
6 is urged by the spring 21 toward the fixed flange 15. When the rotation preventing shaft portion 16d is locked in the locking hole 22 formed in the holder 20, the movable flange 1
6 is detented.

When the master base paper roll 11 is held by the master base paper roll holding device, the holder 20 and the movable flange 16 are such that the protrusion dimension of the protruding portion 14 of the master base paper roll 11 is equal to the master base paper roll used in this printing apparatus. 11
If the value is an appropriate value, it is permitted to move to a lock position (a position locked while holding the master base paper roll 11) (see FIG. 1). On the other hand, when the protrusion dimension of the protrusion 14 is larger than an appropriate value for the master base paper roll 11 used in this printing apparatus, the movable flange 16 moves in a direction away from the fixed flange 15 and the flange 16a is 20, the movable flange 16 and the holder 20 cannot return to the locked position (see FIG. 2).

In such a configuration, when the master base paper roll holding device holds the master base paper roll 11, the holder 20 and the movable flange 16 located at the lock position are moved to a position separated from the fixed flange 15. Then, the protruding portion 14 of the master base paper roll 11 is inserted into the concave portion 18, and the holder 20 and the movable flange 16 are moved to the lock position side.

FIG. 1 shows a case where the master base paper roll 11 held by the master base paper roll holding device is suitable for use in a printing apparatus provided with the master base paper roll holding device. One end face of the master base paper 13 abuts against the end face of the fixed flange 15, the holder 20 and the movable flange 16 return to the lock position, and the master base paper roll 11 is securely held. When the holder 20 and the movable flange 16 return to the locked position, the protrusion 1
6b is fitted to the paper core 12, one surface of the flange portion 16a abuts against the end surface portion of the rolled master base paper 13, and there is a slight gap between the other surface of the flange portion 16a and the holder 20. There are gaps.

FIG. 2 shows that the master base paper roll 11 held by the master base paper roll holding device is not suitable for use in a printing apparatus provided with the master base paper roll holding device. The case where the dimension is larger than the depth dimension of the concave portion 18 is shown. One end face of the master base paper 13 is separated from the end face of the fixed flange 15, the movable flange 16 is moved in a direction away from the fixed flange 15, the flange portion 16 a is in contact with the holder 20, and the movable flange 16 and the holder 20 are separated from each other. Cannot return to locked position.

Therefore, the worker holding the master base paper roll 11 in the master base paper roll holding device requires that the end face of the master base paper roll 11 is separated from the end face of the fixed flange 15 and that the movable flange 16 Holder 2
0 does not return to the lock position, it is possible to quickly confirm that the master base paper roll 11 is not suitable for use in a printing apparatus provided with the master base paper roll holding device, and Exchange to a suitable master base paper roll 11 can be performed quickly.

For this reason, the printing operation is not started while the master stencil roll 11 unsuitable for the printing apparatus is erroneously held in the master stencil roll holding device, and waste of the master stencil roll 11 and wasting time are eliminated. be able to.

Next, a second embodiment of the present invention will be described with reference to FIG.
A description will be given with reference to FIG. In this embodiment,
And, in each of the following embodiments described below, the same parts as those of the other embodiments described earlier are denoted by the same reference numerals,
Description is also omitted.

FIG. 3 shows a state in which the master base paper roll 11 is held by the master base paper roll holding device provided in the printing apparatus. In the master base paper roll 11, a long master base paper 13 is wound around a hollow cylindrical paper core 12 as a core in a roll shape, and one end side of the paper core 12 is wound around the paper core 12. The protruding portion 14 protrudes outward from the end face of the master base paper 13. In each master base paper roll 11, the master base paper 1
The protrusion size "M" of the protrusion 14 is appropriately set to a different value depending on the size "L", type, and the like of No.3. The inner diameter of the paper core 12 is formed to be constant in each master paper roll 11. Also, in each master base paper roll 11,
The other end of the paper core 12 is flush with the end face of the master base paper 13.

The master base paper roll holding device includes a fixing flange 15 as a holding unit (first holding unit) for holding the protruding portion 14 of the master base paper roll 11, and a master base paper roll 1.
A movable flange 16 which is a second holding portion for holding the opposite side of the one protrusion 14 is provided.

The fixed flange 15 has a protruding shaft portion 17 fitted into the paper core 12 when the master base paper roll 11 is held by the master base paper roll holding device, and a ring shape around the protruding shaft portion 17. Recess 1 formed and into which paper core 12 is inserted
8 are formed. The outer diameter of the protruding shaft 17 is the paper core 1
2 is formed slightly smaller than the inner diameter. The concave portion 18 is formed with an enlarged diameter portion 18a.
Inside, a length detection sensor 19 is provided. The length detection sensor 19 determines that the protrusion dimension of the protrusion 14 inserted into the recess 18 is equal to the master base paper roll 11 used in this printing apparatus.
It has a rotatable rotation detecting piece 19a at three detection positions (see FIG. 4). The length detection sensor 19 is connected to a control unit (not shown) of the printing apparatus, and the detection result of the length detection sensor 19 is controlled by the control unit to display a display unit (not shown).
Will be displayed. The display format on the display unit is a display by characters, a display by lighting of an LED lamp, and the like.

FIG. 4A shows a case where the master stencil roll 11 held by the master stencil roll holding device is suitable for use in this printing apparatus (the same state as in FIG. 3). The protrusion 14 inserted into the recess 18 contacts the rotation detecting piece 19a, the rotation detecting piece 19a rotates to a predetermined position, and the length detecting sensor 19 is turned on.

FIG. 4B shows a case where the master base paper roll 11 held by the master base paper roll holding device is not suitable for use in this printing apparatus. The protrusion dimension of the protrusion 14 is shorter than the master stencil roll 11 suitable for use in this printing apparatus, and the protrusion 14 inserted into the recess 18 does not come into contact with the rotation detecting piece 19a, and the rotation is detected. The piece 19a is maintained at the initial position, and the length detection sensor 19 is off.

FIG. 4C shows a case where the master base paper roll 11 held by the master base paper roll holding device is not suitable for use in this printing apparatus. The protrusion 14 has a protrusion dimension longer than that of the master base paper roll 11 suitable for use in this printing apparatus, and the protrusion 14 inserted into the recess 18 abuts against the rotation detecting piece 19a, and 19a has rotated greatly, and the length detection sensor 19 has been turned off.

FIG. 3 shows the mounted state of the master base paper roll 11 during storage or transportation. Paper core 1
2 is placed with the side not protruding from the end face of the master base paper 13 facing down. For this reason, the lateral displacement of the master base paper 13 wound in a roll during storage or transportation is prevented.

In such a configuration, when the master base paper roll holding device holds the master base paper roll 11, the holder 20 and the movable flange 16 located at the lock position are moved to positions separated from the fixed flange 15. Then, the protruding portion 14 of the master base paper roll 11 is inserted into the concave portion 18, and the holder 20 and the movable flange 16 are moved to the lock position side. When the holder 20 and the movable flange 16 return to the locked position, the protruding shaft portion 16b is fitted to the paper core 12, and one surface of the flange portion 16a is brought into contact with the end surface of the master base paper 13 wound in a roll shape. There is a slight gap between the holder 20 and the other surface of the flange portion 16a.

Here, if the master paper roll 11 held by the master paper roll holding device is suitable for use in a printing apparatus provided with the master paper roll holding device, FIG. a) As shown in FIG.
The rotation detecting piece 19a is rotated to a predetermined position by the protruding portion 14 inserted into 8, and the length detecting sensor 19 is turned on.
Then, by displaying the detection result (that the length detection sensor 19 is turned on) on the display unit, the operator performing the printing operation can print the master stencil roll 11 held by the master stencil roll holding device. It can be quickly confirmed that the device is suitable for use in the device.

On the other hand, if the master paper roll 11 held by the master paper roll holding device is not suitable for use in a printing apparatus provided with the master paper roll holding device, FIG. , (C),
The rotation detecting piece 19a does not rotate, or the rotation detecting piece 19a
Rotates greatly, and the length detection sensor 19 is turned off. By displaying the detection result (that the length detection sensor 19 has been turned off) on a display unit or the like, the operator performing the printing operation allows the master base paper roll 11 held by the master base paper roll holding device to receive the result. It is possible to quickly confirm that the master base paper roll 11 is not suitable for use in the printing apparatus, and to exchange the master base paper roll 11 with one suitable for use in the printing apparatus before starting the printing operation. . For this reason, the printing operation is not started while the master stencil roll 11 that is not suitable for the printing apparatus is erroneously held in the master stencil roll holding device, and waste of the master stencil roll 11 and waste of working time can be reduced. .

Next, a third embodiment of the present invention will be described with reference to FIG.
A description will be given based on FIG. In the present embodiment, the transmission type 2 which is a length detection sensor for detecting whether or not the protrusion dimension of the protrusion 14 inserted into the recess 18 is appropriate for the master base paper roll 11 used in this printing apparatus. The optical sensors 23 a and 23 b are provided in the enlarged diameter portion 18 a of the recess 18.

FIG. 7A shows a case where the master base paper roll 11 held by the master base paper roll holding device is suitable for use in a printing apparatus provided with the master base paper roll holding device. (Same state as FIG. 4). The protrusion 14 inserted into the recess 18 is detected by only one of the optical sensors 23a, and the optical sensor 23a is turned on. FIG. 7B shows a case where the master base paper roll 11 held by the master base paper roll holding device is not suitable for use in this printing apparatus.
The protrusion 14 has a protrusion dimension shorter than that of the master base paper roll 11 suitable for use in this printing apparatus, and the protrusion 14 inserted into the recess 18 is provided with any of the optical sensors 23a and 23b.
And the optical sensors 23a and 23b are off. FIG. 7C shows a case where the master base paper roll 11 held by the master base paper roll holding device is not suitable for use in this printing apparatus. The size of the protrusion 14 is longer than that of the master base paper roll 11 suitable for use in this printing apparatus, and the protrusion 14 inserted into the recess 18 has both the optical sensors 23a and 23.
b, the optical sensors 23a and 23b are turned on.

In such a configuration, when the master paper roll 11 held by the master paper roll holding device is suitable for use in a printing apparatus provided with the master paper roll holding device, As shown in FIG. 7A, the protrusion 14 inserted into the recess 18 is detected by only one of the optical sensors 23a, and the optical sensor 23a is turned on. Then, by displaying the detection result (that only the optical sensor 23a is turned on) on a display unit or the like,
The operator who performs the printing operation can quickly confirm that the master base paper roll 11 held by the master base paper roll holding device is suitable for use in the printing device.

On the other hand, when the master paper roll 11 held by the master paper roll holding device is not suitable for use in the printing device, as shown in FIGS. Are turned off or both are turned on, and the detection result (light sensor 2
3a and 23b are both turned off or both turned on) on the display unit or the like, so that the operator who performs the printing operation can use the master stencil roll 11 held by the master stencil roll holding device. It is possible to promptly confirm that the master base paper roll 11 is not suitable for use in the printing apparatus, and to replace the master base paper roll 11 with one suitable for use in the printing apparatus before starting the printing operation. Therefore, the master base paper roll 11 that is not suitable for the printing apparatus
The printing operation is not started while the master base paper roll holding device is erroneously held in the master base paper roll holding device.
Waste and work time can be saved.

Next, a fourth embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIG. In the present embodiment,
The length detecting sensor 24 having the rotation detecting piece 24a
8 are provided in the enlarged diameter portion 18a. The length detection sensor 24 detects that the protrusion dimension of the protrusion 14 inserted into the recess 18 is equal to or more than an appropriate value for the master base paper roll 11 used in the printing apparatus. The piece 24a is rotatably provided at a two-stage detection position.

Further, the movable flange 16 serving as the second holding portion
Is a master base paper roll holding device.
Is held, if the protrusion dimension of the protrusion 14 is smaller than or equal to an appropriate value for the master stencil roll 11 used in this printing apparatus, it is allowed to move to the lock position (see FIGS. 8 and 9). The master base paper roll 11 is stably held. On the other hand, when the protrusion dimension of the protrusion 14 is larger than that of the master base paper roll 11 used in the printing apparatus, the flange 16a comes into contact with the holder 20, and the movable flange 16 and the holder 20 are in the locked position. (See FIG. 10), and the holding state of the master base paper roll 11 is not stable.

In such a configuration, when the master base paper roll 11 is held by the master base paper roll holding device, the protrusion dimension of the protrusion 14 inserted into the concave portion 18 is the same as that of the master base paper roll 11 used in the printing apparatus. If it is equal to or more than the appropriate value, as shown in FIG. 6 or FIG. 8, the rotation detecting piece 24a pressed by the protruding portion 14 rotates to a predetermined position and the length detecting sensor 24 is turned on.

On the other hand, when the holder 20 and the movable flange 16 are to be moved to the lock position in order to hold the master base paper roll 11 by the master base paper roll holding device, the protrusion dimension of the protrusion 14 of the master base paper roll 11 is reduced. The holder 20 and the movable flange 16 move to the lock position when the master base paper roll 11 used in this printing apparatus is below the appropriate value (see FIGS. 8 and 9). The flange 16a and the holder 20 are in contact with each other, the movable flange 16 and the holder 20 cannot move to the lock position, and the end face of the master base paper 13 is separated from the end face of the fixed flange 15 (see FIG. 10).

Therefore, according to the present embodiment, only when the protrusion 14 is detected by the length detection sensor 24 and the movable flange 16 and the holder 20 are moved to the lock position, the master base paper roll holding device is Can be confirmed to be suitable for use in a printing apparatus provided with the master stencil roll holding device.

For this reason, when the protrusion 14 is too short to be detected by the length detection sensor 24, or when the movable flange 16 and the holder 20 cannot be moved to the lock position because the protrusion 14 is too long. The operator performing the printing operation promptly confirms that the master base paper roll 11 held by the master base paper roll holding device is not suitable for use in a printing apparatus provided with the master base paper roll holding device. This allows the user to confirm that the master base paper roll 11 can be replaced with a roll suitable for use in the printing apparatus before starting the printing operation. For this reason, the printing operation is not started while the master stencil roll 11 that is not suitable for the printing apparatus is erroneously held in the master stencil roll holding device, and waste of the master stencil roll 11 and waste of working time can be reduced. .

Next, a fifth embodiment of the present invention will be described with reference to FIG.
1 will be described. In the present embodiment, the first sensor 25 having the rotation detecting piece 25 a
a. This first sensor 25 is
The rotation detecting piece 25a detects that the protruding dimension of the protruding portion 14 inserted into the printing paper 8 is equal to or larger than that of the master base paper roll 11 used in this printing apparatus.
It is rotatably provided at the stage detection position.

A ring-shaped flange 26, which is a slide body, is attached to the fixed flange 15, which is a holding portion, so as to be slidable along a direction in which the projecting portion 14 is inserted into and removed from the concave portion 18. A spring 27 is attached between the ring-shaped flange 26 and the fixed flange 15 so as to urge the ring-shaped flange 26 away from the fixed flange 15. The ring-shaped flange 26 is
When the protrusion dimension of the protruding portion 14 inserted therein is less than or equal to an appropriate value for that of the master base paper roll 11 used in the printing apparatus, it is provided so as to be pushed by the end face of the master base paper 13 and slide to a predetermined position. ing. At a position facing the ring-shaped flange 26 along the sliding direction, a second sensor 28 that detects that the ring-shaped flange 26 has slid to a predetermined position is provided.

In such a configuration, when the master base paper roll 11 is held by the master base paper roll holding device, the protrusion of the protruding portion 14 inserted into the concave portion 18 is determined by the printing provided with the master base paper roll holding device. When the master base paper roll 11 used in the apparatus has an appropriate value (see FIG. 11A) or is longer than the appropriate value (see FIG. 11C), the rotation of the protrusion 14 is detected. Piece 2
The rotation detection piece 25a rotates to a predetermined position by contacting the rotation sensor 5a, and the first sensor 25 is turned on.

On the other hand, the protrusion 14 inserted into the recess 18
Is a proper value for the master paper roll 11 used in the printing apparatus (see FIG. 11A), or is shorter than the proper value (see FIG. 11B).
Then, the ring-shaped flange 26 pressed on the end face of the master base paper 13 slides to a predetermined position, and the second sensor 28 is turned on.

For this reason, the first sensor 25 and the second sensor 2
8, the master roll 11 held by the master roll holding device is suitable for use in the printing apparatus provided with the master roll holding device only when the detection is performed. Can be confirmed. For this reason, when either one of the first sensor 25 and the second sensor 28 is not detected, the operator performing the printing operation requires the master stencil roll 11 held by the master stencil roll holding device. It is possible to quickly confirm that the master base paper roll 11 is not suitable for use in the printing apparatus, and to exchange the master base paper roll 11 with one suitable for use in the printing apparatus before starting the printing operation. . For this reason, the printing operation is not started while the master stencil roll 11 that is not suitable for the printing apparatus is erroneously held in the master stencil roll holding device, and waste of the master stencil roll 11 and waste of working time can be reduced. .

Next, a sixth embodiment of the present invention will be described with reference to FIG.
2 and FIG. The master stencil roll 11a used in the present embodiment has the same basic structure as the master stencil roll 11, but has an outer diameter of a hollow cylindrical paper core 12a as a core (outside of the protrusion 14). “D” is set to a different value depending on the size “L” and type of the master base paper 13 as appropriate. The inner diameter of the paper core 12a is constant in each master base paper roll 11a, and the outer diameter "D" of the paper core 12a is changed by changing the thickness "T" of the paper core 12a.

An outer diameter detecting sensor 29 is provided in the enlarged diameter portion 18a of the concave portion 18 formed in the fixed flange 15. The outer diameter detection sensor 29 is an outer diameter of the protrusion 14 inserted into the recess 18 (the same as the outer diameter of the paper core 12a).
Detects whether the master base paper roll 11a used in this printing apparatus is appropriate or not, and has a rotatable rotation detecting piece 29a at three detection positions (FIG. 13).
reference).

FIG. 13 (a) shows a case where the master base paper roll 11a held by the master base paper roll holding device is suitable for use in this printing apparatus (the same state as FIG. 12). Since the outer diameter of the paper core 12a (the protruding portion 14) is an appropriate value, the outer peripheral surface of the protruding portion 14 inserted into the recess 18 abuts on the rotation detecting piece 29a, and the rotation detecting piece 29a Position to the outer diameter detection sensor 29.
Is turned on.

FIG. 13 (b) shows a case where the master base paper roll 11a held by the master base paper roll holding device is not suitable for use in this printing apparatus.
Since the outer diameter of the paper core 12a is smaller than the proper one, the outer peripheral surface of the protrusion 14 inserted into the recess 18 is
9a, the rotation detection piece 29a is maintained at the initial position, and the outer diameter detection sensor 29 is turned off.

FIG. 13C shows a case where the master base paper roll 11a held by the master base paper roll holding device is not suitable for use in this printing apparatus.
Since the outer diameter of the paper core 12a is larger than the proper one, the outer peripheral surface of the protrusion 14 inserted into the recess 18 is
9a, the rotation detecting piece 29a is largely rotated,
The outer diameter detection sensor 29 is off.

In such a configuration, if the master base paper roll 11a held by the master base paper roll holding device is suitable for use in a printing apparatus provided with the master base paper roll holding device, FIG. 13 (a)
As shown in FIG. 7, the rotation detecting piece 29a is rotated to a predetermined position by the protrusion 14 inserted into the concave portion 18, and the outer diameter detection sensor 29 is turned on. By displaying the detection result (that the outer diameter detection sensor 29 has been turned on) on a display unit or the like, the operator performing the printing operation allows the master stencil roll 11a held by the master stencil roll holding device to display the result. It is possible to quickly confirm that the printing apparatus is suitable for use in a printing apparatus.

On the other hand, when the master base paper roll 11a held by the master base paper roll holding device is not suitable for use in the printing device, the master base roll 11a is rotated as shown in FIGS. The detection piece 29a does not rotate, or the rotation detection piece 29a largely rotates, and the outer diameter detection sensor 29 is turned off. Then, the detection result (outside diameter detection sensor 29
Is turned off) on the display unit or the like, so that the operator performing the printing operation can confirm that the master base paper roll 11a held by the master base paper roll holding device is not suitable for use in the printing device. This can be quickly confirmed, and the master base paper roll 11a can be replaced with a roll suitable for use in the printing apparatus before starting the printing operation. For this reason, the printing operation is not started while the master base paper roll 11a, which is not suitable for the printing apparatus, is erroneously held in the master base paper roll holding device, and waste of the master base paper roll 11 and waste of working time can be eliminated. .

Next, a seventh embodiment of the present invention will be described with reference to FIG.
4 and FIG. The master base paper roll 11b used in the present embodiment has the same basic structure as the master base paper rolls 11 and 11a, but the protrusion size of the projecting portion 14 depends on the size “L” and type of the master base paper 13. M "or a hollow cylindrical paper core 12b as a core body
Are set to different values as appropriate. In each master base paper roll 11b, the inner diameter of the paper core 12b is constant, and the outer diameter "D" of the paper core 12b is changed by changing the thickness "T" of the paper core 12b.

A first sensor 30 having a rotation detecting piece 30a is provided in the enlarged diameter portion 18a of the concave portion 18 formed in the fixed flange 15. The first sensor 30 detects that the protrusion dimension of the protrusion 14 inserted into the recess 18 is equal to or more than an appropriate value for the master base paper roll 11b used in the printing apparatus, and inserts the protrusion 14 into the recess 18. It is detected that the outer diameter of the paper core 12b thus set is an appropriate value for the master base paper roll 11b used in this printing apparatus.

Further, the fixed flange 15 has a protrusion 1
A ring-shaped flange 26a, which is a slide body, is attached so as to be slidable along the direction in which the base member 4 is inserted into and removed from the recess 18. In the center of the ring-shaped flange 26a, when the outer diameter of the paper core 12b (projection 14) is less than or equal to an appropriate value for the master base paper roll 11b used in this printing apparatus, the paper core 12b is recessed. An insertion hole 31 that allows insertion into the inside 18 is formed. When the outer diameter of the paper core 12b is larger than an appropriate value for the master base paper roll 11b used in this printing apparatus, the ring-shaped flange 26a is pushed by the end face of the paper core 12b and slides to a predetermined position. Is provided.
Further, the ring-shaped flange 26a is formed at the end face of the master base paper 13 when the protrusion dimension of the protrusion 14 inserted into the concave portion 18 is equal to or smaller than that of the master base paper roll 11b used in the printing apparatus. It is provided so as to be pushed and slide to a predetermined position. A second sensor 28 that detects that the ring-shaped flange 26a has slid to a predetermined position is provided at a position facing the ring-shaped flange 26a in the sliding direction.

In such a configuration, FIG. 14 shows the master stencil roll 1 held by the master stencil roll holding device.
1b shows a case where the master base paper roll holding device is suitable for use in a printing device provided with the holding device. In other words, the protrusion dimension of the protrusion 14 inserted into the recess 18 is determined by the master base paper roll 11b used in the printing apparatus.
And the outer diameter of the protruding portion 14 is an appropriate value for the master base paper roll 11b used in the printing apparatus. Projection 14
Since the protrusion dimension and the outer diameter dimension are appropriate values, the protrusion 14 is inserted into the recess 18 and detected by the first sensor 30, and the first sensor 30 is turned on. In addition, since the protrusion dimension and the outer diameter dimension of the protrusion 14 are appropriate values, the end face of the master base paper 13 abuts on the ring-shaped flange 26a and the ring-shaped flange 26a slides to a predetermined position. The detection is performed by the sensor 28, and the second sensor 28 is turned on.

FIG. 15 shows a case where the master base paper roll 11b held by the master base paper roll holding device is not suitable for use in a printing apparatus provided with the master base paper roll holding device. That is, a case is shown in which either the protrusion dimension or the outer diameter dimension of the protrusion 14 is not an appropriate value for the master base paper roll 11b used in the printing apparatus. FIG. 15A shows a case where the detection by the first sensor 30 is not performed because the protrusion dimension of the protrusion 14 is shorter than an appropriate value. FIG. 15B shows the protrusion 1
This is a case where the detection by the second sensor 28 is not performed because the protrusion dimension of No. 4 is longer than the appropriate value. FIG. 15C shows a case where the detection by the first sensor 30 is not performed because the outer diameter of the protrusion 14 is smaller than an appropriate value. FIG. 15D
In the case where the outer diameter of the protrusion 14 is larger than an appropriate value, the protrusion 14 is not inserted into the recess 18 from the insertion hole 31 and the detection by the first sensor 30 is not performed. FIG.
(E) is a case where the detection is not performed by both the first sensor 30 and the second sensor 28 because the protrusion dimension of the protrusion 14 is longer than the appropriate value and the outer diameter dimension of the protrusion 14 is smaller than the appropriate value. It is.

According to the present embodiment, when the master base paper roll 11b held by the master base paper roll holding device is suitable for use in a printing apparatus provided with the master base paper roll holding device, Both the first sensor 30 and the second sensor 28 are turned on, and are not turned on if they are not suitable. For this reason, by displaying the detection results of the first sensor 30 and the second sensor 28 on a display unit or the like, the operator performing the printing operation can use the master stencil roll 11b held by the master stencil roll holding device. It is possible to promptly confirm that the master base paper roll 11b is not suitable for use in the printing apparatus, and to exchange the master base paper roll 11b with one suitable for use in the printing apparatus before starting the printing operation. For this reason, the printing operation is not started while the master base paper roll 11b that is not suitable for the printing apparatus is erroneously held in the master base paper roll holding device, and the waste of the master base paper roll 11b and the waste of the working time can be reduced. .

[0074]

According to the first aspect of the present invention, when the master base paper roll is held by the master base paper roll holding device of the printing apparatus, the depth of the projecting portion is smaller than the depth dimension of the concave portion formed in the holding portion. If the protruding dimension is large, the protruding portion does not fit in the concave portion, so that it is possible to quickly confirm that the master base paper roll is not suitable for use in this printing apparatus. It is no longer necessary to start printing while incorrectly holding a master roll roll that is not suitable for the printing device in the roll roll holding device.
It is possible to reduce waste of the master base paper roll and waste of work time.

According to the second aspect of the present invention, when the master base paper roll is held by the master base paper roll holding device of the printing apparatus, the length of the protrusion inserted into the recess is detected by the length detection sensor. It is possible to quickly confirm whether or not the held master base paper roll is suitable for use in this printing apparatus based on the detection result. Therefore, the master base paper roll that is not suitable for the printing apparatus is used. The printing work is not started while the master base paper roll holding device is erroneously held in the master base paper roll holding device, and the waste of the master base paper roll and the waste of the working time can be eliminated.

According to the third aspect of the present invention, when the master base paper roll is held by the master base paper roll holding device of the printing apparatus, the protrusion dimension of the protruding portion is an appropriate value as that of the master base paper roll used in this printing apparatus. If the length is longer than the above, the length detection sensor performs detection, and if the protrusion size of the protrusion is less than or equal to an appropriate value for the master base paper roll used in this printing apparatus, the second holding unit is moved to the lock position. The master base paper roll held only when the protruding portion is detected by the length detection sensor and the second holding portion is moved to the lock position because the master base paper roll is suitable for use in this printing apparatus. Can be checked quickly,
For this reason, a printing operation is not started while a master base paper roll that is not suitable for the printing apparatus is erroneously held in the master base paper roll holding device, and waste of the master base paper roll and waste of working time can be eliminated.

According to the fourth aspect of the present invention, when the master base paper roll is held by the master base paper roll holding device of the printing apparatus, the protrusion dimension of the protruding portion of the master base paper roll is changed to the master base paper roll used in the printing apparatus. In the case where the master base paper roll is suitable for use in the printing apparatus, the detection is performed by the first sensor and the second sensor. This makes it possible to check quickly, so that a printing operation is not started while a master paper roll that is not suitable for the printing device is erroneously held in the master paper roll holding device. Waste can be eliminated.

According to the fifth aspect of the present invention, when the master base paper roll is held by the master base paper roll holding device of the printing apparatus, the outer diameter of the protruding portion inserted into the recess of the holding portion is determined by the outer diameter detection sensor. It is possible to quickly confirm whether or not the master base paper roll retained by the detection result is suitable for use in this printing apparatus. This eliminates the need to start a printing operation while erroneously holding a master base paper roll in the master base paper roll holding device, thereby eliminating waste of the master base paper roll and waste of work time.

According to the sixth aspect of the present invention, when the master base paper roll is held by the master base paper roll holding device of the printing apparatus, the protrusion dimension and the outer diameter of the protruding portion of the master base paper roll are determined by the printing apparatus. If the master roll is suitable for use as the master roll, the first sensor and the second sensor detect the roll, so whether the held master roll is suitable for use in this printing apparatus is determined. Can be promptly checked, so that a printing operation is not started while a master paper roll that is not suitable for the printing device is erroneously held in the master paper roll holding device. Waste of time can be saved.

According to the seventh aspect of the present invention, whether or not the master base paper roll is suitable for use in a certain printing apparatus is confirmed by checking the length and outer diameter of the protruding portion. Can be. In addition, when the master base paper roll is stored or transported, the master base paper on the other end side of the core body is placed with the end face down, so that the lateral displacement of the master base paper wound in a roll shape is prevented. Can be prevented.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional front view showing a state of holding a master paper roll by a master paper roll holding device according to a first embodiment of the present invention.

FIG. 2 is a vertical cross-sectional front view showing a state in which a movable flange and a holder cannot move to a lock position because a protrusion dimension of a held master paper roll is longer than an appropriate value.

FIG. 3 is a vertical sectional front view showing a state of holding a master base paper roll by a master base paper roll holding device according to a second embodiment of the present invention.

FIG. 4 is a vertical sectional front view showing a detection state of whether or not a held master base paper roll is appropriate;

FIG. 5 is a front view partially showing a mounted state of a master base paper roll at the time of storage, transportation, and the like.

FIG. 6 is a longitudinal sectional front view showing a state of holding a master base paper roll by a master base paper roll holding device according to a third embodiment of the present invention.

FIG. 7 is a vertical sectional front view showing a detection state of whether or not the held master base paper roll is appropriate;

FIG. 8 is a longitudinal sectional front view showing a state of holding a master base paper roll by a master base paper roll holding device according to a fourth embodiment of the present invention.

FIG. 9 is a vertical cross-sectional front view showing a state in which the length of the protruding portion of the held master base paper roll is shorter than an appropriate value and is not detected by the length detection sensor.

FIG. 10 is a vertical sectional front view showing a state in which the movable flange and the holder cannot move to the lock position because the projected dimension of the retained master base paper roll is longer than an appropriate value.

FIG. 11 is a vertical front view showing a state of detecting whether or not a master base paper roll held by a master base paper roll holding device is appropriate according to a fifth embodiment of the present invention.

FIG. 12 is a longitudinal sectional front view showing a state of holding a master base paper roll by a master base paper roll holding device according to a sixth embodiment of the present invention.

FIG. 13 is a vertical sectional front view showing a state of detecting whether or not the held master base paper roll is appropriate.

FIG. 14 is a longitudinal sectional front view showing a state of holding a master base paper roll by a master base paper roll holding device according to a seventh embodiment of the present invention.

FIG. 15 is a vertical sectional front view showing a detection state of whether or not the held master base paper roll is appropriate;

FIG. 16 is a vertical sectional front view showing a part of a conventional master roll holder and a master roll.

[Explanation of symbols]

 11, 11a, 11b Master base paper roll 12, 12a, 12b Core 13 Master base paper 14 Projection 15 Holder, first holder 16 Second holder 18 Recess 19, 23a, 23b, 24 Length detection sensor 25, 30 First sensor 26, 26a Slide body 28 Second sensor 29 Outer diameter detection sensor

Claims (7)

[Claims] An elongated master base paper is wound in a roll around a core, and one end side of the core protrudes outward from an end surface of the master base paper wound on the core. A master base paper roll holding device of a printing apparatus for holding the master base paper roll, wherein the holding part holds the protruding part side formed to have appropriately different protruding dimensions; and a depth dimension corresponding to the protruding dimension of the protruding part. And a recess formed in the holding portion with the protrusion inserted therein. 2. An elongated master base paper is wound around a core in a roll shape, and one end side of the core protrudes outward from an end surface of the master base paper wound on the core. A master base paper roll holding device of a printing apparatus for holding the master base paper roll, wherein a holding part holding the protruding part side formed to have appropriately different protruding dimensions, and the protruding part being formed in the holding part and inserting the protruding part And a length detection sensor provided in the recess, and detecting whether or not the protrusion dimension of the protrusion inserted into the recess is appropriate for the master base paper roll used in the printing apparatus. And a master base paper roll holding device. 3. An elongated master base paper is wound around a core in a roll shape, and one end of the core is protruded outward from an end surface of the master base paper wound on the core. A master base paper roll holding device of a printing apparatus for holding the master base paper roll, wherein the first holding part holding the protruding part side formed to have appropriately different protrusion dimensions; and A recess into which a protrusion is inserted; and a protrusion provided in the recess, wherein a protrusion dimension of the protrusion inserted into the recess is equal to or more than an appropriate value as that of the master base paper roll used in the printing apparatus. A length detecting sensor for detecting, and a side opposite to the protruding portion side of the master base paper roll, which is provided so as to be movable in a direction approaching and separating from the first holding portion, and the protruding portion has a protrusion dimension of Serial master material roll holding apparatus characterized by having, a second holding portion is allowed to move to the locked position when it is less than the proper value as the master material roll used in the printing apparatus. 4. An elongated master base paper is wound around a core in a roll shape, and one end side of the core protrudes outward from an end surface of the master base paper wound on the core. A master base paper roll holding device of a printing apparatus for holding the master base paper roll, wherein a holding part holding the protruding part side formed to have appropriately different protruding dimensions, and the protruding part being formed in the holding part and inserting the protruding part The master to be slidably attached to the holding portion along a direction in which the projecting portion is inserted into and removed from the recess, and the projecting dimension of the projecting portion inserted into the recess is used in the printing apparatus. A slide body that is pushed by the end face of the master base paper and slides to a predetermined position when the value is less than or equal to an appropriate value as that of the base paper roll; A first sensor for detecting that a protrusion dimension of the formed protrusion is equal to or more than a proper value of that of the master base paper roll used in the printing apparatus; And a second sensor for detecting that the slide body has slid to a predetermined position. 5. A protruding portion in which a long master base paper is wound in a roll shape around a core, and one end of the core protrudes outward from an end face of the master base paper wound on the core. A master base paper roll holding device of a printing apparatus for holding the master base paper roll, wherein the holding unit holds the protruding portion side of the core body formed to have appropriately different outer diameters, and is formed on the holding unit. A recess into which the protrusion is inserted, and whether the outer diameter of the protrusion provided in the recess and inserted into the recess is appropriate for the master base paper roll used in the printing apparatus. And an outer diameter detection sensor for detecting an external diameter. 6. The slide body has an outer diameter dimension appropriately set to a different value, and in the slide body, the outer diameter dimension of the protrusion is larger than an appropriate value for the master base paper roll used in the printing apparatus. In this case, the core is pushed by the end face and slides to a predetermined position, and the first sensor has an outer diameter of the protruding portion inserted into the recess, the one of the master base paper roll used in the holding device. 5. The master stencil roll holding device according to claim 4, wherein the core is not detected when the value is smaller than the appropriate value. 7. A protruding portion in which a long master base paper is wound in a roll shape around a core body, and one end side of the core body protrudes outward from an end face of the master base paper wound in a roll shape. In the master base paper roll, the protruding dimension or the outer diameter dimension of the protruding portion is appropriately set to a different value, and the other end side of the core body does not protrude from an end face of the master base paper. roll.