JPH0647867Y2 - Sheet transport roll cleaning device - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention is intended to remove dust, dirt, and other adhering substances adhering to the surface of a sheet conveying roll during the production of sheet-like objects such as paper and plastic films. The present invention relates to a cleaning device for a sheet conveying roll, which keeps the roll surface clean.

[Prior Art] Conventionally, as a cleaning device for a sheet conveying roll, Japanese Patent Laid-Open No. 61-61
The device described in Japanese Patent Publication No. 94958 is known.

This device comprises a cleaning head composed of a non-woven fabric wound in a roll shape, a means for supplying a cleaner such as bleaching, and a means for winding the cleaner, and the cleaning head is moved by a moving means to the surface of a dirty sheet conveying roll. After moving and pressure contacting, the motor built in the winding means is rotated to wind up the dirt adhered on the surface of the sheet conveying roll to the cleaner.

When the dirty cleaner becomes full, it is replaced with a new cleaner. , A new cleaner was attached to the core of the cleaner supplying means, and then the end of the cleaner was attached to and removed from the core of the cleaner winding means, and the cleaner was replaced.

[Problems to be Solved by the Invention] However, most of the sheet conveying rolls in the technical field have many heating rolls for heating while conveying a sheet-like object, and are operated without stopping for improving the production efficiency. is the current situation.

Even if the above-mentioned conventional device is used to remove and replace the full-pipe cleaner immediately below the rotating heating roll, the cleaner supply means and take-up means of the conventional apparatus are fixed to the cleaning head. Was very difficult to remove from the cleaning head, and there was a risk of being caught in a roll of an operator and causing burns, which was a dangerous operation.

Even if the cleaner can be replaced, even if the worker comes into contact with the running sheet and the cleaner is removed from the cleaner supply means, the air core of the cleaner keeps pressing against the transport roll in an exposed state. It was a problem that defective products such as dirt and scratches were generated.

Furthermore, in order to prevent the occurrence of such defective products and the danger to workers, the sheet transport rolls of recent years are surrounded by safety fences and covers to prevent workers from easily approaching the transport rolls. In reality, it is impossible to replace or attach / detach the new cleaner directly under the transfer roll.

An object of the present invention is to solve the above-mentioned problems of the prior art and to make it safe in a process of transporting a sheet-like object transported by a plurality of sheet transport rolls, without the operator having to go directly under the transport rolls in motion. (EN) Provided is a cleaning device for a sheet transport roll having a cassette structure capable of easily exchanging and attaching / detaching a cleaner, and at the same time, a sheet transport roll capable of preventing defective products due to excessive winding of the cleaner from a cleaner supply means. It is intended to provide a cleaning device.

[Means for Solving the Problems] The structure of the present invention for solving this object is as follows. That is, the present invention is (A) a cleaning device for a sheet conveying roll, which removes adhered substances adhering to the surface of a sheet conveying roll by a continuous sheet-like object, and (B) adhering to the surface of the sheet conveying roll. A cleaner head having a cleaner for contacting and removing the adhered matter, a supply means for the cleaner, a pressure contact means for contacting the cleaner supply means with the surface of the sheet conveying roll, and a take-off means for pulling the cleaner; ) In a cleaning device for a sheet conveying roll, comprising: a moving means for moving the cleaning head in a longitudinal direction of the sheet conveying roll and a direction orthogonal to the longitudinal direction, the cleaning head comprises: (B1) the press contact means moves up and down. In addition, a flat base is provided on the upper part thereof, and the cleaner, the cleaner supply means, and the cleaner take-up means are provided on the base. And a rail that guides the cassette in a direction orthogonal to the longitudinal direction of the sheet conveying roll and a motor that drives the cleaner take-up means are fixed. Alarm means for detecting the outer diameter of the cleaner is provided in the vicinity of the supply means or the take-up means of (B2) the cassette is provided with a pair of frame bodies at predetermined intervals on the base, A cleaner attaching / detaching means for attaching / detaching the cleaner to / from the cleaner supplying means and the take-up means while rotatably supporting the cleaner supplying means and the take-out means between the frames with an axial distance therebetween. And a drive engagement means for engaging the drive of the motor with one shaft of the cleaner take-up means. It is a removal device.

[Operation] In the cleaning device for a sheet conveying roll of the present invention, the cleaning head is moved to the cutout portion of the safety fence or the cover by the moving means, and the worker outside the safety fence puts his / her hand through the cutout portion to clean the cleaner. After removing the cassette in which the supply means and the cleaner take-up means are integrated, from the cleaning head, the cleaner can be replaced and attached / detached.

In addition, after the cleaning head is moved to just below the desired transport roll that should be cleaned after replacement or removal of the cleaner and the operation is started, an alarm is automatically provided on the cleaning head when the amount of cleaning cleaner becomes low. Since the means informs the remaining amount, it is possible to know in advance the replacement time of the cleaner without the operator having to go directly under the dangerous transport roll.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

1 and 2 are a side view and a left front view, respectively, of a cleaning device for a sheet conveying roll according to the present invention, which is arranged below a sheet conveying roll.

In the figure, 1 is a continuous film sheet during traveling,
Reference numerals 2, 3, 4, and 5 are transport rolls for transporting the film sheet, which are pulled rightward in the drawing by a take-up device (not shown).

The cleaner 6 immediately below the transport rolls 3 is a cleaner for wiping off dirt adhering to the surfaces of the transport rolls 2 to 5, and is wound around a roll-shaped cleaner supply means 7 and pivotally supported by the frame body 8.
Reference numeral 9 is a cleaner take-up means for taking in the dirty cleaner 6 supplied from the cleaner feed means 7, and a gear 12 coaxially fixed to the motor 11 by a motor 11 fixed to a base 10 and the cleaner take-up means 9 The cleaner 6 wound around the cleaner supply means 7 can be wound up by being driven by the gear 13 fixed coaxially with. The cleaner supplying means 7, the cleaner take-up means 9, the gear 13 and the like constitute a cassette 14 integrally fixed to the frame body 8, the details of which will be described with reference to FIGS. ,
The gear 12 and the motor 11 are easily attached and detached.

The base 10 mounts the cassette 14, two guide guides 15 are fixed to the lower part of the base 10, and the column-shaped pillars are provided upright from the carriage 16 and have sliding surfaces on both sides.
17 is freely engaged with the vertical movement. 18 this post
An air cylinder, which is a means for press-contacting the surface of the transfer roll, is fixed to 17. The rod part is fixed to the base 10, and the cleaner supply means 7 is moved upward in the figure to press-contact the lower part of the transfer roll 3. be able to. Further, 19 is a motor mounted on the carriage 16, and 20a are wheels driven by this motor.

The cleaning head 21 configured to remove the dirt attached to the surfaces of the transport rolls 2 to 5 is constituted by the members indicated by the above reference numerals 6 to 20a,
This cleaning head 21 moves on a rail 22 laid under the wheel 20a by driving a wheel 20a with a motor 19 and moves in any direction in the left-right direction in the figure, that is, in the direction orthogonal to the longitudinal direction of the transport rolls 2-5. Can be moved to a position.

Next, 23 is a moving means for moving or stopping the cleaning head 21 in the longitudinal direction of the transport rolls 2 to 5, and the rail 22
A motor 24 mounted on the rail, wheels 20b driven by the motor, and a rail 25 laid in the longitudinal direction of the transport rolls 1 to 5. Although not particularly shown in the drawings, the cleaning head 21 and the moving means 23 move the cleaning head 21 to a position immediately below a desired conveying roll, press the cleaner supplying means 7 against the conveying rolls 1 to 5, and further in the longitudinal direction of the conveying roll. A series of control operations such as reciprocating motion and stopping are performed on the air cylinder 18, the motors 19, 24.
It is equipped with a controller and a position detector.

The members 26 and 27 are a safety fence and a sliding door provided for ensuring safety so that an operator does not enter directly below the rotating transport roll.

The above-mentioned cleaner 6 according to the present invention may be any woven or knitted fabric, non-woven fabric, bleached paper, paper or the like which is composed of yarns of ordinary fineness, as long as it is a sheet-like product capable of wiping off stains on a transport roll. It is more preferable to use a knitted woven fabric or a non-woven fabric mainly composed of an ultrafine fiber bundle having a single yarn fineness of 0.00001 to 0.5 denier.

Here, the ultrafine fibers have a single yarn fineness of 0.00001 to 0.5 denier, and the spinning form, resin composition, and cross-sectional shape do not matter. Examples include ultrafine fibers formed by the super draw method, sea-island type composite fibers composed of two or more types of polymer components, deseaed fibers formed from split type composite fibers, split fibers, and further sea-island type Examples of the composite fiber include an ultrafine fiber in which the island component has a modified cross-section, or a sea-island type composite fiber.

Examples of the polymer that constitutes such ultrafine fibers include polyester, polyamide, polyvinyl alcohol, polyolefin, and polystyrene. In the composite, a combination of polyester and polystyrene, copolyester of polyester and sulfoisophthalic acid, and combination of polyamide and polyester can be applied.

For example, in many multi-core sea-island type composite fibers, the sea component is usually a copolyester obtained by copolymerizing polystyrene or sulfoisophthalic acid with polyester as the island component. There are many examples of cross-sectional shapes in which polyester components divided by this polyamide are adhesively compounded and arranged radially from the.

In the present invention, the smaller the ultrafine shape and the more irregular cross section, and the sharper the angle, the better the cleaning effect.
The cleaning effect is improved even if such modified cross-section fibers are used alone or mixed with round cross-section fibers.

Non-woven fabrics or knitted fabrics are included as cleaners made of such ultrafine fibers.

The non-woven fabric may be a non-woven fabric produced by any method, such as a web obtained by subjecting a normal web made of long fibers or short fibers to a treatment by needle punching or water punching, or a fabric formed by melt blowing.

As the woven fabric, a plain weave structure is usually applied,
Any weave design such as satin weave design, twill weave design, satin weave design, double satin weave design can be applied. The knit may have any knitting structure of warp knitting or circular knitting.

When the cleaner 6 is composed of the ultrafine fibers in the denier range as described above, a cleaner having no single yarn breakage during cleaning can be obtained with a long life, and the fiber density, the contact length of the fiber per unit area, and the contact Since it is possible to take a large area etc., the adhesion of the cleaner to the roll surface is further improved, and fine powder-like deposits on the roll surface,
It has an outstanding effect in removing greasy dirt. Therefore, it is extremely effective for cleaning the transport roll which requires keeping the cleanliness of the roll surface very high.

Next, FIGS. 3 to 5 are detailed views of the cassette 14, FIG. 3 is a plan view with a partial cross section of the cassette mounted on the base 10, and FIG. 5 is a left side view of FIG. 3.

In FIGS. 3 and 4, 9 is the roll-shaped cleaner take-up means pivotally supported by the frame 8. A chuck 29 integrally formed with a shaft 28 is detachably fitted to one end (gear 13 side) of the cleaner take-up means 9 and is rotatably supported by a ball bearing 30 from the frame 8. On the other hand, a chuck 33 integrally formed with the shaft 32 via a ball bearing 31 is easily fitted to the other end from the cleaner take-up means 9 similarly to the gear 13 side. Also,
Reference numeral 35 is a slip prevention pin of the cleaner take-up means 9. Therefore, the cleaner take-up means 9 is rotatable on the frame body 8.

A holder 34 is fixed to the frame body 8 by inserting the shaft 32 and fixing it with a fixing screw (not shown). With such a configuration, the cleaner take-up means 9 can be easily removed from the chucks 29, 33. That is, the holder 34
After loosening a fixing screw (not shown), the shaft 32 is slid together with the ball bearing 31 and the chuck 33 in the direction of arrow A in FIG. 3 to remove the chuck 33 from the cleaner take-up means 9, and then the cleaner take-up means 9 is removed. It suffices to pull out again from the chuck 29 in the direction of the arrow A, and take out in the vertical direction in the drawing from between the expanded chucks 29 and 33.

Therefore, it is possible to easily replace and attach / detach the cleaner 6 wound around the cleaner take-up means 9. Reference numeral 37 is a knob for sliding the shaft 32 in the direction of arrow A. Therefore, in this embodiment, the chuck 29 and the ball bearing 3 are
1, the shaft 32, the chuck 33, the holder 34, the pin 35, and the knob 37 constitute an attaching / detaching means of the cleaner 6. Also,
Reference numeral 11 is a motor fixed on a base 10 for rotating the cleaner take-up means 9 via gears 12, 13 which are drive engagement means of the present invention.

On the other hand, 7 is a cleaner supply means for supplying a new cleaner, which has the same structure as the cleaner take-up means 9 but has no gear at the shaft end, and is a handle used when the new cleaner is wound around the cleaner supply means 7. 38 are provided.

The frame body 8 has two plates arranged on both sides of the cleaner supply means 7 and the cleaner take-up means 9, and is constructed integrally with three L-shaped members 39 and a handle 40, and is mounted on the base 10. It is placed.

Next, members 41 to 50 shown in FIG. 4 are locking devices for attaching and detaching the cassette 14 to and from the base 10. here
Reference numeral 41 denotes a hook that is swingably provided inside the frame body 8 about a fulcrum 42, and has a key-like end portion 43 locked to a cutout portion 44 of the base 10. It is a handle whose movement is restricted only in the left-right direction in the drawing by two pins 46 protruding from the frame 8. The right end of the handle 45 has another pin 48, which is provided above the hook 41.
Is engaged with. Further, 49 is a spring fixed to both inner sides of the frame body 8 via the bracket 50, and is always the hook 41.
And the handle 45 are pulled to the right in the figure.

As shown in FIG. 5, the movement of the cassette 14 is restricted so that the lower portion of the frame 8 can be slid only in the vertical direction in the figure by a guide rail 51 fixed on the base 10.

Therefore, the cassette 14 is fixed to the base 10 because the hook 41 is normally applied to the notch 44 of the base 10 by the pulling force of the spring 49, but when the cassette 14 is detached from the base 10, the handle 40 together with the handle 45 is attached. Grasp and pull the handle 45 against the pulling force of the spring 49 in the direction of the handle 40, and use the hook 41 as the base.
It should be removed from the notch 44 of 10.

Next, FIG. 6 is a cross-sectional view of an essential part showing the alarm means 52 for notifying the remaining amount of the cleaner 6 in advance, and shows the state where the dirty cleaner 6 is at the end of winding.

In the figure, the alarm means 52 includes a limit switch 55 fixed to the back side of the base 10 with the contact 53 protruding from the notch 54 of the base 10 and the winding amount of the cleaner take-up means 9, that is, the outer diameter of the cleaner 6. And a detection lever 56 for detecting the contact angle. In the drawing, the contact 53 is pushed down by the tip of the detection lever coming into contact with the outer periphery of the cleaner 6. The alarm means 52 can achieve the object sufficiently even if it is a contact type as in the present embodiment, but non-contact type such as a photoelectric tube type or an ultrasonic type is more preferable. Further, the installation position of the alarm means 52 may be on the cleaner supply means 7 side. The length of the cleaner 6 is set in advance so that the detection lever 56 turns on the limit switch 55 when there is a small amount of the cleaner remaining so that the cleaner supply means 7 is not exposed during cleaning. Is used. The alarm means 52 is a limit switch 55 (not shown).
A warning lamp, a buzzer, etc. for notifying the operator of the time to replace the cassette 14 in advance are turned on in response to a signal from the operator. Further, in this case, the operation of the cleaning device may be stopped. In order to prevent the cleaner supply means 7 from being exposed during cleaning, the alarm means 52 may use a timer for measuring the operating time of the motor, or a combination of the limit switch method and the timer method. But good.

Next, the operation of this device will be described with reference to FIG.

FIG. 7 shows that an operator outside the safety fence 26 moves the cleaning head 21 near the safety fence 26 and then removes the cassette 14 from the cleaning head 21.
It is the figure which has shown the state which has removed.

According to the apparatus of the above-described embodiment, when the cassette 14 is first removed, the cassette 14 is lowered below the transport roll 3 by the air cylinder 18, and the moving means 23 and the motor 19 on the carriage 16 are driven to move the cleaning head 21. The safety fence 26 and the sliding door 27 are moved to the vicinity of the notch 57. Next, the operator puts his / her hand through the cutout portion 57 of the safety fence 26 and holds the handle 45 shown in FIG.
When it is gripped together, the hook 41 is disengaged from the base 10, so that the fixed state with the base is released, and the cassette 14 can easily slide on the base 10 to the left in the drawing. That is, the operator moves the cassette 14 from the position indicated by the chain double-dashed line in the figure to the position indicated by the solid line, and further moves the cassette 14 out of the safety fence 26.
Can be completely removed from the cleaning head 21.
Thereafter, the cleaner take-up means 9 wound with the dirty cleaner 6 and the empty cleaner supply means 7 shown in FIGS. 3 and 4 were removed from the chucks 29 and 33, respectively, and a new cleaner 6 was wound. The cleaner supply means 7 and the empty cleaner take-up means 9 are attached, and then the end of the cleaner 6 is wound around the cleaner take-up means 9 to complete the replacement and attachment / detachment work of the cleaner 6. Once the new cleaner is installed, the cassette
14 is mounted on the cleaning head 21 again so that the gears 12 and 13 mesh with each other, and the moving means 23 is used to move the cleaning head 21 to a position directly below the desired conveyance roll to be cleaned. Is pressed against the lower part of the transport roll. When the remaining amount of the cleaning cleaner becomes small due to the progress of the cleaning work by the cleaning head 21, the alarm means 52 provided on the base 10 informs the remaining amount in advance, so that the worker can clean the dirty cleaner 6 by the same procedure as described above. Can be exchanged. Therefore, even if the worker does not go directly under the dangerous transport roll, the work can be performed safely without interrupting the production and without generating a defective product.

In addition, if you prepare a spare cassette with a new cleaner installed in advance, you can replace the cleaner by simply replacing the cassette, and the time required to replace the cleaner can be greatly shortened. Even if the cleaning is performed, the cleaning of the transfer roll can be continued without any trouble.

In addition to the above-described embodiment, the cassette 14 may be provided with another roll 58 between the cleaner supply means 7 and the cleaner take-up means 9, which is in contact with the transport roll 3, as shown in FIG. Alternatively, the cleaner 6 may be in contact with the transport roll via the roll 58.

In the above embodiment, the cleaning device for the sheet conveying rolls in which the cleaning heads 21 are arranged below the sheet conveying rolls 2 to 5 has been described, but the cleaning device in which the cleaning heads 21 are installed above the sheet conveying rolls is described. Needless to say, the present invention can be applied.

[Advantage of the Invention] In the above-described cleaning device for the sheet conveying roll of the present invention, the cleaner supply means and the cleaner take-up means are integrally formed into a cassette, and the operator detaches the cassette from the cleaning head, In addition to the configuration that makes it easy to replace, the moving means that can move the cleaning head to the vicinity of the safety fence is provided.Therefore, it is easy to replace and remove the cleaner from outside the safety fence without going directly under the rotating transport roll. This can be done safely, and it is possible to avoid a decrease in productivity due to stopping the transport rolls required for cleaner replacement.

Further, since the alarm means for notifying the remaining amount of the cleaner in advance is provided, the cleaner supply means is prevented from being pressed against the conveyor roll due to the excessive removal of the cleaner.
It has an excellent effect that the surface of the transport roll is not scratched or soiled.

[Brief description of drawings]

1 and 2 are views showing an embodiment of a cleaning device for a sheet conveying roll according to the present invention, which are a side view and a front view, respectively. 3 to 5 are views showing a cassette incorporated in the apparatus of this embodiment, FIG. 3 is a plan view of a cross section of a main part thereof, and FIG. 4 is a ZZ arrow of FIG. 5 is a left side view of FIG. 3. FIG. 6 is a front view of a cross section of a main part of the alarm means of the present invention, and FIG. 7 is a view showing a mounting operation of the cassette. Further, FIG. 8 is a front view of a cross section of a main part showing another embodiment of the cassette. 1 to 5: Conveyor roll 6: Cleaner 7: Cleaner supply means 9: Cleaner take-up means 14: Cassette 18: Air cylinder 21: Cleaning head 23: Moving means 52: Alarm means

Claims (1)

[Scope of utility model registration request] 1. A cleaning device for a sheet conveying roll, comprising: (A) a cleaning device for a sheet conveying roll, which removes adhered substances adhering to the surface of the sheet conveying roll by a continuous sheet-like object; A cleaning head provided with a cleaner for contacting and removing the kimono, a supply means for the cleaner, a pressure contact means for pressing the cleaner supply means against the surface of the sheet transport roll, and a take-off means for pulling the cleaner; In a cleaning device for a sheet carrying roll, comprising: a moving means for moving the cleaning head in a longitudinal direction of the sheet carrying roll and a direction orthogonal to the longitudinal direction, the cleaning head comprises: (B1) the pressing means moves up and down. At the same time, a flat base is provided on the upper part thereof, and the cleaner, the cleaner supply means, and the cleaner take-up means are integrally formed on the base. And a rail for guiding the cassette in a direction orthogonal to the longitudinal direction of the sheet conveying roll and a motor for driving the cleaner take-up means are fixed, and further the cleaner supply means is provided. Or, an alarm means for detecting the outer diameter of the cleaner is provided in the vicinity of the take-up means, and (B2) the cassette is provided with a pair of frame bodies at predetermined intervals on the base, and the frame body A cleaner attaching / detaching means for attaching / detaching the cleaner is provided between the cleaner supplying means and the take-up means so as to be rotatably supported with an axial distance therebetween, and the cleaner supplying / taking-out means. Further, the sheet conveying roll cleaning device is characterized in that drive engaging means for engaging the drive of the motor is provided on one shaft of the cleaner take-up means.