JP3315239B2 - Sheet material processing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for performing a predetermined process while conveying a sheet material, and more particularly, for cleaning a roller for conveying a sheet material during processing of a sheet material such as a lithographic printing plate. Related to the structure.

[0002]

2. Description of the Related Art In general, a photosensitive lithographic printing plate (hereinafter, also referred to as a PS plate) which has a developing section, a washing section and a finisher section and is continuously conveyed is provided as an automatic developing apparatus for a lithographic printing plate. In some cases, after a developing process in a developing unit, a rinsing process is performed in a rinsing unit, and a finishing process is performed in a finisher unit.

The developing section is provided with a transport roller and a squeeze roller. The PS plate is transported while being held between the transport rollers by the rotation of the transport roller, and immersed in a developing solution. The excess developer is removed while being conveyed by the rotation of. The washing section is provided with a pair of conveying rollers, a pair of squeeze rollers, and a spray disposed between each pair of conveying rollers. The PS plate is conveyed while being held between the conveying rollers by the rotation of the conveying rollers. After spraying a large amount of water, excess water is removed while being conveyed by the rotation of the squeeze roller. The finisher portion is provided with an ejection hole for ejecting the finishing liquid and a pair of squeeze rollers disposed downstream of the ejection hole, and the PS plate is sprayed with the finishing liquid ejected from the ejection hole. Excess finishing liquid is removed while being conveyed by the rotation of the squeeze roller.

In the automatic developing apparatus for a lithographic printing plate as described above, among the rollers in the developing section, washing section and finisher section, particularly the squeeze roller is used to dry the photosensitive layer components eluted in the developing solution, and to wash it. There is a problem in that the printhead is stained by a photosensitive layer binder or the like deposited at the time of finishing processing, and the stain adheres to the PS plate with the rotation of the roller, thereby causing printing stains. Also, in an apparatus for performing a desensitization treatment, there is an apparatus having the same configuration as the above-described automatic developing apparatus for a lithographic printing plate, and in such an apparatus,
The squeeze roller is contaminated by a dried product of the desensitizing solution component, a reaction product of the photosensitive layer component and the desensitizing component mixed together with the washing water, and the same problem as described above has occurred.

Conventionally, as a method of cleaning the rollers, when the PS plate is not processed, a pair of rollers are rotated in a forward or reverse direction at different peripheral speeds to generate friction on the peripheral surfaces of the rollers. A device that automatically removes dust and the like adhering to a surface is known (Japanese Unexamined Patent Publication No.
3-165243). According to this, the peripheral surface of the roller can be quickly cleaned by a simple operation without any troublesome maintenance.

[0006]

However, in the conventional roller cleaning method described above, the plate material cannot be processed during the cleaning of the rollers because the peripheral surfaces of the pair of rollers are rubbed against each other. , It is necessary to spend labor and time only for cleaning, so that the work efficiency of roller cleaning was low.

An object of the present invention is to provide a sheet material processing apparatus capable of greatly improving the efficiency of roller cleaning.

[0008]

SUMMARY OF THE INVENTION An object of the present invention is to provide an apparatus for processing a sheet material with a predetermined processing liquid while conveying the sheet material, wherein the apparatus rotates while pinching the sheet material. The present invention is achieved by a sheet material processing apparatus comprising: a roller pair that conveys a sheet material; and a driving unit that rotates both of the rollers while changing a peripheral speed.

The driving means is, for example, a motor for rotating one of the rollers, and a motor for rotating one of the rollers. It is preferable that the peripheral speeds of the two rollers be different from each other by a predetermined amount because the rollers are constituted by gears having different numbers of teeth and have the same diameter.

The driving means is, for example, one of a pair of rollers.
A motor for rotating either one of the rollers, and gears having the same number of teeth that are fixed to the paired rollers and rotate both rollers in conjunction with each other by meshing with each other; It is preferable that the peripheral speeds of the two rollers differ by a predetermined amount by making the diameters of the rollers different by a predetermined amount. Even when a drive gear having a different number of teeth from a roller having a different diameter is used, the object of the present invention can be achieved by shifting the roller diameter ratio and the tooth number ratio by a predetermined amount.

[0011]

In the sheet processing apparatus according to the present invention, a predetermined processing is performed by the processing liquid while the sheet is conveyed by the rollers. At this time, the rollers are brought into sliding contact with the sheet material when the peripheral speeds of the paired rollers are different by a predetermined amount, and the surfaces are cleaned. Further, even when the sheet material is not being conveyed, the rollers are slid in contact with each other, so that a cleaning effect can be obtained.

In the sheet processing apparatus according to the present invention,
The difference between the peripheral speeds of the paired rollers is that if the amount is too large, the wear of the rollers is accelerated or the processing quality is reduced, and if the amount is too small, the cleaning effect is reduced.
When the peripheral speed of the roller with the higher rotation speed or the reference speed of the processing device is set to 1, (hereinafter, the definition of the ratio is the same).
It is 1 to 10%, more preferably 1 to 5%. It is important that the direction of the peripheral speed difference is such that the transportability is not adversely affected, especially when there are a plurality of roller pairs. That is, speed increase or deceleration is selected depending on the position of the roller pair, so that the sheet material does not bend between the rollers or deviate from the reference speed. In order to further enhance the cleaning effect of the roller and reduce abrasion, it is preferable that at least a part of the roller is always or intermittently immersed in the processing liquid.
In order to further enhance the cleaning effect of the roller, it is desirable to intermittently rotate the roller even during processing of the sheet material.

The sheet material to be subjected to a predetermined treatment by the treatment apparatus according to the present invention includes, for example, a photosensitive layer whose solubility is changed by light irradiation, an aluminum plate, a zinc plate,
There is a photosensitive lithographic printing plate in which 0.05 to 5 g / m ² is coated on a substrate such as an iron plate, a chromium-plated iron plate, a paper plate, and a plastic plate. As the photosensitive layer, a photosensitive layer containing an orthonaphthoquinonediazide compound, a diazonium salt compound, an azide compound, a photopolymerizable compound, a photocrosslinkable compound and the like, and if necessary, an alkali-soluble binder is preferably applied. Among the photosensitive lithographic printing plates, the most suitable is a positive photosensitive lithographic printing plate having a photosensitive layer comprising an orthoquinonediazide compound on an aluminum plate.

The processing solution used in the sheet material processing apparatus according to the present invention is, for example, a developing solution for a photosensitive lithographic printing plate. The developing solution is one that can easily elute or remove the photosensitive layer of the photosensitive plate. is there. As an example,
In the case of a photosensitive layer comprising an orthoquinonediazide compound, JP-A-54-62004, JP-A-55-2275
No. 9, JP-A-55-115045, JP-A-57-54
No. 938, an aqueous solution of sodium silicate or potassium silicate is used.

[0015]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
FIG. 1 is a schematic sectional view showing an automatic developing apparatus for a lithographic printing plate according to a first embodiment of the present invention. In this figure, a sheet-shaped photosensitive lithographic printing plate (hereinafter, referred to as PS plate) 10
Is transported horizontally or continuously in a predetermined direction (the direction of arrow A) in a state where the photosensitive layer is on the upper surface, and is subjected to predetermined processing in the developing unit 20, the washing unit 30, and the finisher unit 40, respectively. Is done.

The developing unit 20 includes conveying rollers 21 and 22,
The squeeze rollers 23 and 24 and the brush 25
A pair of upper and lower sides sandwiching the S plate 10 and a guide roller 2
6 are provided, and a developing process is performed on the photosensitive layer of the PS plate 10 by the action of the developing solution stored in the developing tank 27. The transport rollers 21 and 22 rotate while holding the PS plate 10 therebetween, so that the PS plate 10 is guided by the guide rollers 26 to be transported while being curved, and is immersed in the developer in the developing tank 27. The brushes 25 are arranged at positions where they are immersed in the developer, respectively.
The developer exchange rate on the surface of the plate 10 is increased. The squeeze rollers 23 and 24 are arranged on the front side in the transport direction A in the developing tank 27 so that the lower half of the lower squeeze roller 24 is immersed in the developer.
By rotating while holding the PS plate 10 that has passed through the developer, the PS plate 10 is transported,
Excess developer adhering to the surface of the S plate 10 is removed.

In the water washing section 30, a pair of transport rollers 31, 32 and a pair of squeeze rollers 33, 34 are provided so as to sandwich the PS plate 10, respectively.
Spray 3 between 1.32 and squeeze rollers 33, 34
A large amount of water is sprayed on the surface of the PS plate 10 after the development processing by a spray 35 to perform a water washing processing. The transport rollers 31 and 32 are arranged so that the lower part of the lower transport roller 32 is immersed in the water stored in the washing tank 36, and rotate the PS plate 10 while sandwiching the PS plate 10 to rotate the PS plate 10. Convey horizontally.
The squeeze rollers 33 and 34 rotate while holding the PS plate 10 therebetween, thereby conveying the PS plate 10 and removing excess water adhering to the surface of the PS plate 10 after water washing.

In the finisher section 40, a pair of ejection members 41 for ejecting a required finishing liquid are provided vertically above and below the PS plate 10, and squeeze rollers 42 and 43 are provided downstream of the ejection member 41. A pair is provided up and down so as to sandwich the plate 10. The finishing liquid stored in the finishing tank 45 is supplied to the ejection member 41 by the pump 44.
Is sprayed onto the surface of the PS plate 10 after the water washing process, whereby a finishing process is performed. Squeeze rollers 42, 4
3 rotates while the PS plate 10 is sandwiched, thereby transporting the PS plate 10 and removing excess finishing liquid adhering to the surface of the PS plate 10 after the finishing process.

In the developing section 20, the rinsing section 30, and the finisher section 40, the conveying rollers 31, 32 and the squeeze rollers 23, 24, 33, 34, 42, 43 have the same upper and lower roller diameter. The pair of rollers are rotated by a motor (not shown) provided one for each roller pair so that the peripheral speeds of both rollers differ by a predetermined amount. That is, the rotation of each motor is transmitted to each roller via gears 50, 51, 54 to 59 fixed respectively to both rollers of the pair, and the number of teeth of these gears 50, 51, 54 to 59 is reduced. Due to the difference, the peripheral speed of each roller differs by a predetermined amount. As a result, the rollers are brought into sliding contact with the PS plate 10 and washed, and at the same time, transport the PS plate 10 or remove excess processing liquid adhering to the surface of the PS plate 10.

That is, the squeeze roller 2 of the developing section 20
In gears 3 and 24, as shown in FIG. 2, gears 50 and 51 fixed to the ends of the upper and lower squeeze rollers 23 and 24, respectively, are meshed with each other and fixed to the upper squeeze roller 23. The gear 50 is engaged with a pinion gear 53 fixed to a rotating shaft 52 of the motor.
When the pinion gear 53 rotates with the rotation of the motor, the gears 50 and 51 rotate in conjunction with each other to rotate both squeeze rollers 23 and 24. Upper squeeze roller 2
The number of teeth of the gear 50 fixed to 3 is 30 and the number of teeth of the gear 51 fixed to the lower squeeze roller 24 is 2
There are nine. Therefore, when the upper squeeze roller 23 is rotated with the rotation of the motor, the number of rotations of the lower squeeze roller 24 interlocked via the gears 50 and 51 per unit time (hereinafter referred to as the number of rotations per unit time) Is the number of rotations of the upper squeeze roller 23.
0/29, the lower squeeze roller 24 rotates faster than the upper squeeze roller 23,
The peripheral velocities of 3,24 differ by about 3.3%.

The transport rollers 31, 32 and squeeze rollers 33, 34 of the rinsing section 30 and the squeeze rollers 42, 43 of the finisher section 40 are also provided with the developing section 20 described above.
Are driven to rotate by a motor via a mechanism similar to the squeeze rollers 23 and 24. The transport rollers 31,
32 and squeeze rollers 23, 24, 33, 34, 4
FIG. 3 shows a combination of the number of teeth of the gears 50, 51, 54 to 59 fixed to 2, 43.

That is, referring to FIG. 1 and FIG. 3, in the washing section 30, a pair of upper and lower transport rollers 31, 32 are formed.
The number of teeth of the gears 54 and 55 fixed to each of them is 31 and 30, respectively. Therefore, when the upper transport roller 31 is rotated with the rotation of the motor, the lower transport roller 3
2 is 31/3 of the number of rotations of the upper conveying roller 31.
0, the lower transport roller 32 rotates faster than the upper transport roller 31, and the peripheral velocities of the upper and lower transport rollers 31, 32 differ by about 3.2%. The number of teeth of the gears 56, 57 fixed to the upper and lower squeeze rollers 33, 34, respectively, is 30 and 31. Therefore, when the upper squeeze roller 33 is rotated with the rotation of the motor, the rotation speed of the lower squeeze roller 34 is 30/31 of the rotation speed of the upper squeeze roller 33, and the upper squeeze roller 33 is Rotate faster than 34,
The peripheral speed of the upper and lower squeeze rollers 33 and 34 is about 3.2%
Different.

In the finisher section 40, the gears 58, 59 fixed to the upper and lower squeeze rollers 42, 43, respectively, have 29 and 30 teeth. Therefore, when the lower squeeze roller 43 is rotated with the rotation of the motor, the rotational speed of the upper squeeze roller 42 interlocked via the gears 58 and 59 is 30/29 of the rotational speed of the lower squeeze roller 43. The upper squeeze roller 42 rotates faster than the lower squeeze roller 43, and the peripheral speeds of the upper and lower squeeze rollers 42, 43 differ by about 3.3%. In the finisher unit 40, a pinion gear 53 fixed to a rotating shaft 52 (FIG. 2) of the motor meshes with a gear 59 fixed to the lower squeeze roller 43.

The transportability of the PS plate 10 is determined by the transport rollers 31 of the developing unit 20, the washing unit 30, and the finisher unit 40.
32 and squeeze rollers 23, 24, 33, 34, 4
Gears 50, 51, 54-
Since the number of teeth of 59 is the combination described above,
Very good.

In this case, the gears 50, 30, 5 having 30 teeth
The peripheral speed of the rollers 23, 32, 33, 43 to which the rollers 6, 59 are fixed is the transport speed. The rollers 24, 3 fixed to the gears 51, 54, 57, 58 having teeth other than 30
The rollers 24, 31, 34, and 42 are not stained because the rollers 1, 34 and 42 are in sliding contact with the PS plate 10.
Rollers 23, 32, which have appropriate conveyance capacity on both sides of
Since there are two 33s and 43s, the transportability does not decrease.

In the first embodiment, the transport roller 32 and the squeeze rollers 23, 3 contributing to the transport of the PS plate 10
The diameters of 3, 43 are respectively 60 mm, and the peripheral velocities are 2,000 mm / min, respectively, which are reference speeds. The peripheral speeds of the transport roller 31 and the squeeze rollers 24, 34, 42 that are in sliding contact with the PS plate 10 are 193, respectively.
5.5 mm / min, 2069 mm / min, 1935.5 mm
/ Min, 2069 mm / min. Therefore, the peripheral speed of the roller pair is -3.2%, + 3.3%, -3.2%, +
3.3% different.

The operation of this embodiment will be described. PS version 10
Is transported horizontally or continuously in a curved direction in the transport direction A with the photosensitive layer facing upward, and is subjected to predetermined processing in the developing unit 20, the washing unit 30, and the finisher unit 40, respectively. In the developing unit 20, the washing unit 30, and the finisher unit 40, each of the transport rollers 31, 32 and the squeeze rollers 23, 24, 33, 34, 42, 43
The PS plate 10 is conveyed while being rotated by a motor and slid in contact with the PS plate 10 while being washed so that the peripheral speeds of the upper and lower rollers forming a pair differ by a predetermined amount.
Excessive treatment liquid adhering to the surface is removed.

That is, the squeeze roller 2 of the developing section 20
In 3 and 24, when the upper squeeze roller 23 is rotated with the rotation of the motor, the rotation speed of the lower squeeze roller 24 interlocked via the gears 50 and 51 becomes 30 times the rotation speed of the upper squeeze roller 23. / 29, the upper squeeze roller 23 rotates faster than the lower squeeze roller 24, and the peripheral speed of the upper and lower squeeze rollers 23, 24 is about 3.
3% different. Similarly, for the conveying rollers 31 and 32 and the squeeze rollers 33 and 34 of the washing section 30 and the squeeze rollers 42 and 43 of the finisher section 40, the peripheral speed of the upper and lower rollers forming a pair is about 3.2% or 3. 3% different. As a result, the surfaces of the rollers rotate while slightly rubbing each other. With the above configuration, at least one of the squeeze rollers and the PS plate 10 are in sliding contact with each other.
It is removed by sliding contact with the plate 10. Further, by appropriately arranging the roller for increasing the speed and the roller for decreasing the speed relative to the reference speed, there is no problem in the transportability.

Next, an automatic developing apparatus for planographic printing plates according to a second embodiment of the present invention will be described. The configuration of the present embodiment is such that each of the transport rollers 31, 32 and the squeeze roller 23,
Except for the number of teeth of the gears 60 to 67 fixed to 24, 33, 34, 42, and 43, respectively, it is the same as the first embodiment described above. FIG. 4 shows a combination of the number of teeth of the gears 60 to 67 according to the second embodiment.

Referring to FIG. 1, in the developing section 20,
The number of teeth of the gears 60 and 61 fixed to the upper and lower squeeze rollers 23 and 24, respectively, is 30 and 31. Therefore, when the upper squeeze roller 23 is rotated with the rotation of the motor, the rotation speed of the lower squeeze roller 24 is 30/3 of the rotation speed of the upper squeeze roller 23.
1, the upper squeeze roller 23 rotates faster than the lower squeeze roller 24, and the upper and lower squeeze rollers 23, 2
4 differ by about 3.3%.

In the washing section 30, gears 62, 63 fixed to the pair of upper and lower transport rollers 31, 32, respectively.
Have 30 and 29 teeth. Therefore, when the upper conveying roller 31 is rotated with the rotation of the motor,
The rotation speed of the lower conveyance roller 32 is 30/29 of the rotation speed of the upper conveyance roller 31, and the upper conveyance roller 31 rotates faster than the lower conveyance roller 32, and the upper and lower conveyance rollers 3
The peripheral velocities of 1, 32 differ by about 3.2%. The number of teeth of the gears 64, 65 fixed to the upper and lower squeeze rollers 33, 34, respectively, is 30 and 31.
Therefore, when the upper squeeze roller 33 is rotated with the rotation of the motor, the rotation speed of the lower squeeze roller 34 is 30/31 of the rotation speed of the upper squeeze roller 33, and the lower squeeze roller 34 is The squeeze rollers 33 and 34 rotate faster than the squeeze rollers 33 and 34, and the peripheral speeds of the upper and lower squeeze rollers 33 and 34 are different by about 3.3%.

In the finisher section 40, the gears 66, 67 fixed to the upper and lower squeeze rollers 42, 43, respectively, have 30 and 31 teeth. Therefore, when the lower squeeze roller 43 is rotated with the rotation of the motor, the rotational speed of the upper squeeze roller 42 interlocked via the gears 66 and 67 is 31/30 of the rotational speed of the lower squeeze roller 43. The upper squeeze roller 42 rotates faster than the lower squeeze roller 43, and the peripheral speeds of the upper and lower squeeze rollers 42, 43 differ by about 3.3%.

FIG. 5 is a squeeze roller 70, 7 of a developing section of an automatic developing apparatus for planographic printing plates according to a third embodiment of the present invention.
FIG. The configuration of the present embodiment is the same as that of the above-described first embodiment, except for the diameter of each transport roller (not shown), the squeeze rollers 70 and 71, and the number of gears 72 and 73 fixed to each roller. .

In FIG. 5, the upper and lower squeeze rollers 70, 71 of the developing section are formed such that the diameter of the upper squeeze roller 70 is larger than the diameter of the lower squeeze roller 71 by a predetermined amount. 70, 71
The gears 72, 73 having the same number of teeth are fixed to each other at the ends thereof, and mesh with each other. A gear 72 fixed to the upper squeeze roller 70 meshes with a pinion gear 75 fixed to a rotating shaft 74 of a motor (not shown). When the upper squeeze roller 70 is rotated with the rotation of the motor, the lower squeeze roller 71 is interlocked via gears 72 and 73 and rotates at the same rotational speed as the upper squeeze roller 70. At this time, the peripheral speed of the upper squeeze roller 70 is
The diameter of the upper squeeze roller 70 is
By being larger than the diameter of the first squeeze roller 71 by a predetermined amount, the peripheral speed of the lower squeeze roller 71 becomes lower by a predetermined amount. In the same manner as described above, the peripheral speeds of both the pair of rollers differ from those of the conveying roller (not shown) and the squeeze roller (not shown) of the washing section, and the squeeze roller (not shown) of the finisher section. The configuration is as follows.

In the third embodiment, the diameter of the upper squeeze roller 70 in sliding contact with the PS plate 10 is 61 mm.
The diameter of the lower squeeze roller 71 that contributes to the conveyance of the S plate 10 is 60 mm, and the number of teeth of the gears 72 and 73 is 30. The peripheral velocities were 2033.3 mm / min and 2000, respectively.
mm / min, so the peripheral speed of the roller pair is 1.
67% different.

As described above, according to each of the above embodiments, PS
Plate 10 is transported by rollers 31 and 32 and squeeze roller 2
When a predetermined process is performed in the developing unit 20, the washing unit 30, and the finisher unit 40 while being conveyed by 3, 24, 33, 34, 42, 43, 70, 71, the upper and lower conveying rollers 31, 32 and squeeze roller 2
3, 24, 33, 34, 42, 43, 70, 71 are brought into sliding contact with the PS plate 10 when the peripheral velocities of both rollers are different by a predetermined amount to clean the surface.
The surface of each roller can be washed during the processing of the plate 10, and conventionally, when the operation of the apparatus is started (at the start of operation), 1 to 3 times.
The cleaning plate required for the plate is not required. Thereby, the operation efficiency of roller cleaning can be significantly improved.

In each of the above embodiments, the pair of transport rollers 31, 32 or the squeeze rollers 23, 24, 33, 3
One motor is provided for each of 4, 42, 43, 70, 71,
Gears 50, 51, 54 to 67, 7 fixed to each roller
Due to the difference in the number of teeth or the diameter of 2,73, the peripheral speeds of both pairs of rollers are configured to be different by a predetermined amount, but one motor is provided for each of the pair of transport rollers or squeeze rollers. The peripheral speeds of both rollers forming a pair may be made different by a predetermined amount by configuring the respective rollers so as not to be linked with each other and controlling each motor so that a predetermined rotation difference is generated.

In each of the above embodiments, the developing tank 27 of the developing section 20 is preferably provided with a member capable of sealing the inside of the tank. Is prevented from deteriorating. Although each of the above embodiments is a PS plate processing apparatus, the present invention is not limited to PS plate processing, but can be applied to any processing of sheet materials using a processing liquid.

[0039]

As described above, according to the present invention, when the plate material is subjected to a predetermined processing by the processing means while being conveyed by the rollers, each of the rollers has a certain peripheral speed of the pair of rollers. The difference in the amount allows the surface of the roller to be cleaned by sliding contact with the plate material, so that the surface of the roller can be cleaned during the processing of the plate material, thereby greatly improving the work efficiency of roller cleaning.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view showing an automatic developing apparatus for planographic printing plates according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing a squeeze roller of a developing unit of the lithographic printing plate automatic developing device of FIG.

FIG. 3 is a diagram illustrating a combination of the number of teeth of the gear according to the first embodiment.

FIG. 4 is a diagram illustrating combinations of the number of teeth of a gear according to a second embodiment.

FIG. 5 is a perspective view showing a squeeze roller of a developing section of an automatic developing device for planographic printing plates according to a third embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 10 PS plate 20 Developing unit 23, 24 Squeeze roller 30 Rinse unit 31, 32 Conveyance roller 33, 34 Squeeze roller 40 Finisher unit 42, 43 Squeeze roller 50, 51 Gear 52 Rotary shaft 53 Pinion gear 54 to 59 Gear

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B65H 20/02 B41J 13/02

Claims (2)

(57) [Claims] An apparatus for processing a sheet material with a predetermined processing liquid while transporting the sheet material, wherein the roller transports the sheet material by rotating while nipping the sheet material. And a driving unit for rotating both of the roller pairs while changing the peripheral speed, wherein the driving unit controls any one of the roller pairs.
Both the motor to be rotated and the roller pair are fixed respectively.
And the two rows are engaged with each other.
Gears with the same number of teeth
And the diameter of both rollers is a predetermined amount
Due to the difference, the peripheral speed of the two rollers is set to a predetermined value.
A sheet material processing apparatus characterized in that the amount is different. To a predetermined processing solution while conveying the 2. A sheet material
An apparatus for processing the sheet material , wherein the apparatus rotates while pinching the sheet material.
A roller pair for conveying the sheet material; and a driving means individually connected to both of the roller pairs.
The driving means sets the peripheral speed of both of the roller pairs to a predetermined amount.
The drive is controlled to be different.
Material processing equipment.