JPH0724425A - Roller washing device - Google Patents

Abstract

PURPOSE:To provide the roller washing device which is capable of efficiently and automatically execute a washing operation and surely removing not only the foreign matter, such as dust sticking to the surface but surely removing the stains of an oil base, etc., and is simple in the structure over the entire part of the device and minimizes the number of driving devices. CONSTITUTION:This roller washing device 1 is constituted to wash the roller having the arbors projecting to both sides in the central part by plural operations, such as brush washing, rinsing and drying. A pair of bearings 4, 4 are freely turnably disposed apart a spacing on the arbors on both sides of the roller in such a manner that the arbors can be placed thereon. An endless belt 13 to be hanged between plural pieces of pulleys is brought into contact in series with outer rings 4a of the respective bearings 4. A mechanism for simultaneously rotating the outer rings 4a of the respective bearings 4 corresponding to the arbors on both sides of the roller is disposed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for cleaning a roller such as a developing roller, and more particularly to a roller equipped with a cored bar projecting from a central portion on both sides for brush cleaning, rinsing, drying, etc. The present invention relates to a roller cleaning device that performs cleaning through a plurality of operations.

[0002]

2. Description of the Related Art The above-described developing roller used in copying machines is manufactured by molding rubber or synthetic resin, polishing the surface of the roller, and coating an electric field film layer such as a urethane layer on the surface of the roller. To be done. Especially when coating, if foreign matter such as dust or dirt adheres to the surface of the roller, it causes poor quality and is thoroughly cleaned.However, such cleaning work is conventionally done manually. Was there.

As a prior art of this kind, as a practical technique, 4-14183
There is a device described in the publication. This device rotatably supports a rubber roller with a gripping part, feeds an adhesive tape on a flat backing plate with the adhesive surface facing the rubber roller, and moves the rubber roller on the backing plate to adhere foreign matter on the surface. It consists of a structure that can be removed with tape.

[0004]

However, the above-described conventional working method or apparatus has the following problems.

Manual cleaning requires skill and is poor in work efficiency. Moreover, there is a large difference in the cleaning work depending on the skill and the worker.

In the apparatus described in the above publication, even if dust or the like adhering to the roller surface can be removed, dirt in the oil system such as grinding oil cannot be removed. For this reason, it is not suitable especially on the line of the developing roller, which tends to discontinue the dirt of the oil system.

The present invention has been made in view of the above points,
Cleaning work can be done efficiently and automatically, and not only foreign matter such as dust adhering to the surface but also dirt on the oil system can be reliably removed,
An object of the present invention is to provide a roller cleaning device having a simple structure of the entire device and minimizing the number of driving devices.

[0008]

To achieve the above object, the roller cleaning apparatus of the present invention comprises: a) brush cleaning, rinsing, drying, etc. A roller cleaning device for cleaning through a plurality of operations, b) each working section is provided in series at a certain distance, and for each working section, a pair of bearings is provided for the core metal on both sides of the roller. Is rotatably arranged such that the core bar can be placed and is spaced apart from the core bar, and c) is hung between a plurality of pulleys on the outer ring of each of the plurality of bearings arranged continuously in a straight line. The passed endless belts are brought into contact with each other in series, and the outer rings of the bearings corresponding to the cores on both sides of the roller are rotatable in unison.

As described in claim 2, d) between each of the working parts, the working part is inclined downward from one working part to the next working part, and the height of the lower end side of the next working part is Rails that are higher than the outer ring of the bearing and that rolls and moves the metal core of the roller are arranged parallel to each other in the axial direction of the roller.
e) It is more preferable to provide, between the pair of bearings of each working unit, a roller unloading mechanism capable of lifting the cored bar mounted on the bearing and having an inclined portion in the same direction as the rail.

According to a third aspect of the present invention, f) In the working section for brush cleaning, the tip is sharpened with respect to the center of the end face of the cored bar on both sides of the rollers respectively mounted on the pair of bearings. A pair of support shafts may be arranged to face each other so as to be movable back and forth, and g) a cleaning brush that rotates in a direction opposite to the rotation direction of the roller may be arranged so as to be able to come into contact with and separate from the roller.

[0011]

According to the roller cleaning apparatus of the present invention having the above-mentioned structure, the endless cores for contacting the outer ring of each bearing are simply placed on the pair of bearings on both sides in each working part. By rotating the belt, the rollers at each work position rotate in unison. Therefore, for example, in one working unit, the brush is applied to the roller to rotate it, and at the same time, cleaning water is sprayed, hot water is sprayed to the roller at the next working position, and air is sprayed at the final working position. Each cleaning operation can be concurrently performed on each roller. Particularly, in the device of the present invention, it is possible to rotate a large number of bearings at the same time by rotating only one endless belt on each side of the roller, which makes it possible to use only one drive device. .

According to the roller cleaning device of the second aspect, the rollers mounted on the bearings on both sides are simultaneously lifted via the core by raising the inclined portion after the work in each working portion. And rides on the rail along the slope above the bearing. Then, the roller of each working unit rolls on the rail inclined downward toward the next working unit by its own weight, and is fed to between the bearings of the next working unit. In addition, the raised inclined portion is immediately lowered to the original position to prepare for the entry of the roller sent from the previous working portion into the space between the bearings.

According to the roller cleaning device of the third aspect, the support shaft advances from both sides of the core metal of the roller during brush cleaning to contact the end surface of the core metal to support the roller. In this state, as described in the operation of the apparatus of claim 1, by rotating the endless belt, the outer ring of the bearing rotates and the roller rotates. At the same time, the cleaning brush descends from above the roller while rotating in the opposite direction to the roller, and comes into contact with the roller to clean the surface of the roller. When brush cleaning,
Spray cleaning water on the rollers. Further, as shown in the following embodiment, the roller can be positively rotated in the opposite direction to the rotating brush by rotating the support shaft while the roller is supported by the support shaft.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a developing roller cleaning device according to an embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a front view showing the outline of the entire cleaning apparatus,
2 is an enlarged front view showing a part of FIG. 1, FIG. 3 is a plan view of FIG. 2 with a part omitted, FIG. 4 is an enlarged front view of a part of FIG. 2, and FIG. 6 is a sectional view taken along line XX of FIG. 4, FIG. 6A is an enlarged front view of the brush cleaning work position of FIG.
6B is a view in the Y direction of FIG. 6A, and FIG. 6C is a view in the Z direction of FIG. 6B.

As shown in FIG. 1, the cleaning apparatus 1 of this embodiment.
Are, in order from the left side of the figure, the charging unit 1-a, the brush cleaning unit 1-b, the rinsing unit 1-c, the drying unit 1-d, and the discharging unit 1 of the roller A.
-e is equipped. A pair of bearings 4 and 4 described later are provided in the feeding portion 1-a so as to face each other in the length direction of the roller A, and the core metal B of the roller A is supported between the two bearings 4 and 4. In the vicinity of the bearing 4, a carry-out mechanism 30 for the roller A is provided, similar to the working unit such as the brush cleaning unit 1-b. A pair of downwardly inclined rails 6 are provided between the charging unit 1-a and the brush cleaning unit 1-b so as to face each other in the length direction of the roller A, and the roller A rolls under its own weight and brushes. It is designed to be sent to the cleaning section 1-b.

The brush cleaning unit 1-b also includes a pair of bearings 4 and 4
Are provided to face each other in the length direction of the roller A, and support the core metal B of the roller A between the two bearings 4 and 4. In the vicinity of the bearings 4, roller unloading mechanisms 30 for lifting and unloading the rollers A on the bearings 4 are also arranged. A brush 41 for cleaning, which will be described later, is provided so as to be able to move up and down above the bearings 4 on both sides, and an injection pipe 60 for cleaning water is provided in front of the brush 41, and the injection pipe 60 has a long length. A large number of injection ports 61 are bored along the direction toward the roller A between the bearings 4 and 4.

The rinsing section 1-c and the drying section 1-d are also provided with a pair of bearings 4 and 4 similar to the brush cleaning section 1-b, and bearings are provided near the bearings 4 on both sides. Roller unloading mechanism 30 for lifting and unloading the roller A on the 4.4
Are installed respectively. Further, the same rail 6 as the rail 6 is provided between the brush cleaning unit 1-b and the rinsing unit 1-c and between the rinsing unit 1-c and the drying unit 1-d.
In the brush cleaning unit 1-b, the hot water jet pipe 70 is provided above the roller A on the bearings 4 and 4, and
Is provided with a large number of injection ports 71 along the longitudinal direction thereof.
-Drilled toward the roller A between the upper four. In the drying unit 1-d, the high-pressure air jet nozzle 80 has the roller A.
Is provided so as to be capable of reciprocating along, and the injection nozzle 80 is directed toward the roller A between the bearings 4, 4.

Similarly to the working units 1-a to 1-d, the discharge unit 1-e also has a pair of bearings 4 on which the core metal B of the roller A can be placed.
4 sets are provided, and the same rail 6 as the rail 6 is provided between it and the drying unit 1-d.

A drive motor 16 is installed at the left end of the cleaning device 1 in order to drive the carry-out mechanisms 30 of the rollers A of the respective working units 1-a to 1-d at the same time. A rotary shaft 17 connected to 16a is rotatably provided over substantially the entire length of the cleaning device 1 via a bearing device 19 and a coupling 18 arranged at regular intervals. An eccentric cam 20 is attached to each of the working portions 1-a to 1-d of the rotary shaft 17.

As shown in FIGS. 2 and 3, each working unit 1
-a to 1-e, a pair of bearings 4 and 4 have a slight gap and the core metal B of the roller A is mounted on the upper ends of the pair of opposing support columns 3 standing on the substrate 2. Each of them is rotatably supported by a support shaft 5. Further, between the respective working units 1-a to 1-e, rails 6 are opposed to each other across one bearing 4 on one working unit side and one bearing 4 on the next working unit. Is provided. The upper side of each rail 6 inclines downward toward the next working portion, and the rail 6
Is fixed to the upper end portion of the support plate 7 erected on the substrate 2 so that the height on the lower end side of the bearing is higher than the upper end of the outer ring 4a of the bearing 4 that is close to the bearing.

On the left side of the substrate 2 of the cleaning device 1, a support base 9 is provided.
The drive motor 8 is installed through the drive motor 8, the drive pulley 10 attached to the drive shaft of the drive motor 8, the pulley 11 disposed below the drive pulley 10, and the pulley 12 disposed on the right side of the drying unit 1-d. In addition, an endless round belt 13 is stretched around in series. A base end of a tension arm 14 having a tension pulley 15 rotatably provided at the tip is pivotally supported on the upper portion of the support column 3, and the tip of the tension arm 14 is urged upward by a spring (not shown). The tension pulley 15 applies tension to the round belt 13.

The rotating shaft 17 is arranged in the center of the substrate 2 in the width direction, and is connected to the drive shaft 16a of the drive motor 16 installed on the left side of the substrate 2 by the coupling 18.

As shown in FIG. 4, the carry-out mechanism 30 of the roller A placed on the bearings 4 and 4 has an inclined portion 31 whose upper side 31a is inclined in the same direction as the rail 6. The inclined portion 31 is formed of an L-shaped plate-like body, and is fixed to both sides of a flat plate-shaped lifting member 32 as shown in the figure. Also, the lifting member 3
2, the pair of guide shafts 33 are provided downward as shown in FIG. 5, and the guide shafts 33 are vertically movably fitted in a guide cylinder 34 provided on the substrate 2. The lower surface of the elevating member 32 is supported on the disc-shaped eccentric cam 20 attached to the rotating shaft 17. Therefore, by rotating the eccentric cam 20 from the state of FIG. 5, the elevating member 32 rises, and the upper sides 31a of the inclined portions 31 on both sides are the bearings 4.
・ Raise the core metal B of the roller A just inside 4.
When the eccentric cam 20 makes one rotation, the elevating member 32 descends and returns to the original position (state of FIG. 5).

In the brush cleaning unit 1-b, a support shaft 21 having a conical pointed tip is opposed to the center of the circular end surface of the core metal B of the roller A on the bearings 4 and 4 so that the support shaft 21 can move forward and backward. It is arranged. As shown in FIG. 3, the support shaft 21 is rotatably and axially slidably supported across an oilless sliding hole 22a formed in a pair of support members 22 and 22 in series. Has been done. An air cylinder device 23 for sliding the support shaft 21 in the axial direction is installed in parallel with the support shaft 21, and the rod 2 of the air cylinder device 23 is installed.
A fork 24 is attached to the tip of 3a. A bearing 24a is provided at the tip of the fork 24.
The base end of the support shaft 21 is rotatably mounted via a. Further, a pulley 25 is integrally rotatably attached to an intermediate portion of the support shaft 21. A drive pulley 26 for rotating the support shaft 21 is integrally rotatably attached to a coaxial rotary shaft 26a extending from the rotary shaft 11a of the pulley 11. The endless round belt 2 is provided between the pulley 25 and the drive pulley 26.
When the drive motor 8 rotates the round belt 13, the round belt 27 also rotates in the same direction at the same time, and the support shaft 21 rotates. Incidentally, reference numeral 28 in FIG.
Is a guide pulley of the round belt 27.

The roller A will be described below.
The main body of the roller A is formed of an elastic body such as urethane resin, and a core metal B penetrates in the axial direction of the center of the main body, and both sides of the core metal B project from the main body. Further, a conical hole is formed in the center of the end surface of the core metal B, and the support shaft 2
The tip end of 1 fits.

As shown in FIG. 6 (a), a cleaning brush 41 is vertically movable above the roller A placed on the bearings 4 and 4. As shown in FIG. 6 (b), the brush 41 has rotatably supported rotary shafts 41 a on both sides of bearing devices 43 and 44 provided on both sides of a flat plate-shaped lifting member 42 so as to project downward. . One bearing device 43 is shown in FIG.
A rectangular housing 43a as seen from the side as shown in (c)
The housing 43a is provided with a pair of stopper screws 45, 45 provided below the housing 43a.
By contacting the lower surface of a, the descending position of the brush 41 is regulated, and the brush 41 contacts the surface of the roller A in an optimum state.

The elevating member 42 is hung at the center of the tip of a rod 46a of a cylinder device 46 which is supported downward from a hanging member 52, and guide shafts 47
It is held horizontally by 47 and moves up and down. A drive motor 48 for rotating the brush 41 is arranged on the left side of the elevating member 42. A drive pulley 49 is attached to the drive shaft of the drive motor 48.
Is integrally rotatably attached, and the pulley 50 is integrally rotatably attached to the rotary shaft 41a on the left side of the brush 41, and the pulleys 49 and 50 are connected by an endless belt 51. The rotation direction of the brush 41 is set to be opposite to the rotation direction of the roller A.

Next, the operation of the roller cleaning device 1 of the present embodiment having the above-mentioned structure will be described.

First, in FIG. 1, the polished roller A is loaded onto the bearings 4 and 4 of the loading section 1-a. At this time, the inclined portion 31 is in the lowered position, and is ready to receive the core metal B of the roller A between the bearings 4 and 4. The roller A on the bearings 4 and 4 simultaneously rotates when the roller A rotates for a certain period of time in another working unit (1-b, 1-c, etc.).

The eccentric cam 20 rotates to move the lifting member 32.
Is lifted, the inclined portions 31 on both sides are lifted, the core metal B on the bearings 4 and 4 is lifted, and the roller A moves on the rail 6 over the right bearing 4 as shown in FIG.

The roller A rolls along the inclined surface of the rail 6 and is sent between the bearings 4 and 4 of the brush cleaning unit 1-b.

The drive motor 8 starts rotating, the round belt 27 rotates counterclockwise, and the outer ring 4 a of each of the bearings 4 and 4 rotates clockwise, so that the roller A passes through the core metal B. Rotate counterclockwise. From above the roller A, the brush 41 descends while rotating clockwise, and the housing 43a of the bearing device 43 contacts the stopper screw 45 and is positioned. In this state, the brush 41 comes into contact with the surface of the roller A, and the cleaning operation is performed. At the same time, the cleaning water is simultaneously jetted from the jet port 61 of the jet pipe 60, and the surface of the roller A is washed. By this work, grinding oil, dust,
Abrasive grains are removed. After the work is completed, the rotation of the roller A is stopped, the rotation of the brush 41 is also stopped, and the brush 41 is raised to the standby position.

By the same operation as described above, the roller A is sent between the bearings 4 and 4 of the rinse section 1-c. Here, hot water is jetted all at once from the jet port 71 of the jet pipe 70, and dust and the like reattached after brush cleaning is washed off. In addition, the roller A is warmed by warm water, and the roller A
The water droplets attached to the surface of the are easily evaporated. In addition,
During injection of hot water, the outer ring 4a of the bearing 4 rotates to rotate the roller A, so that the surface of the roller A is uniformly washed over the entire surface.

By the operation similar to the above, the roller A is sent between the bearings 4 and 4 of the drying unit 1-d. Here, air is ejected from the ejection nozzle 80, and at the same time, the nozzle 80 reciprocates in the longitudinal direction of the roller A, so that the water droplets adhering to the surface of the roller A are blown away, drained, and simultaneously dried. During air blowing, the outer ring 4a of the bearing 4 rotates to rotate the roller A and remove water droplets on the entire surface of the roller A.

By the same operation as described above, the roller A is sent between the bearings 4 and 4 of the discharge section 1-e, and the series of operations is completed. In the cleaning device 1, the rollers A in each working unit are simultaneously rotated for a fixed time, and the rollers A between the bearings 4 and 4 in each working unit are simultaneously carried out. Then, the work in each work unit proceeds in parallel and simultaneously.

By the way, although one embodiment of the roller cleaning apparatus of the present invention has been described above, it may be carried out as follows.

A) Not only the urethane resin roller, but also a rubber roller or a metal roller can be similarly cleaned.

B) The cleaning brush 41 can be rotated by using the rotational force of the belt 13 for rotating the outer ring 4a of the bearing 4 without using the drive motor 48.

C) Simultaneous rotation of the outer ring 4a of a plurality of pairs of bearings 4 is carried out not only by one endless belt 13 spanned between the pulleys but also between a pair of pulleys spaced at a predetermined interval. Multiple sets of belts are provided, and each set of belts is brought into contact with the outer ring of the corresponding bearing. Each set of belts has a gear mounted coaxially with the pulley, and each set of gears meshes with one drive motor. Alternatively, the belts of each set may be rotated simultaneously.

D) The number of work steps such as brush cleaning, rinsing, and drying is not limited, and for example, brush cleaning is 2
It may be repeated, and the drying operation may be omitted.

[0042]

As is apparent from the above description,
The roller cleaning device of the present invention has the following excellent effects.

(1) For each working unit, the rollers are placed on the bearings and rotated in unison by a common driving device, so that dust and the like adhering to the surfaces of the rollers can be removed evenly and uniformly. Moreover, the structure of the entire apparatus is simple, and the manufacturing cost can be reduced.

(2) In the roller cleaning device according to the second aspect of the present invention, if the inclined portion is lifted after the work is completed in each working portion, the rollers are on the rail inclined downward toward the next working portion by their own weight. Since it is fed between the pair of bearings of the next working unit, the roller can be fed to each working unit by its own weight without contacting the operating unit of the device with the roller unit. Work can be done automatically and efficiently.

(3) In the roller cleaning device according to the third aspect, since the cleaning brush rotates in the opposite direction to the roller to clean the surface of the roller, only foreign matter such as dust adhered to the surface of the roller is removed. It is also possible to reliably remove dirt from the oil system.

[Brief description of drawings]

FIG. 1 is a front view showing an outline of an entire roller cleaning device according to an embodiment of the present invention.

FIG. 2 is a front view showing a part of FIG. 1 in an enlarged manner.

FIG. 3 is a plan view of FIG. 2 with a part thereof omitted.

FIG. 4 is an enlarged front view of a part of FIG.

5 is a sectional view taken along line XX of FIG.

6 (a) is an enlarged front view showing the brush cleaning work position of FIG. 1, FIG. 6 (b) is a view in the Y direction of FIG. 6 (a), and FIG. FIG. 6 (b) is a Z-direction arrow view.

[Explanation of symbols]

 1 Roller cleaning device 1-a Input part 1-b Brush cleaning part 1-c Rinse part 1-d Drying part 1-e Discharge part 4 Bearing 6 Rail 8/16/48 Drive motor 13/27 Belt 20 Eccentric cam 21 Support Shaft 30 Roller unloading mechanism 31 Inclined part 32/42 Lifting member 41 Brush A Roller B Core bar

Claims (3)

[Claims] 1. A roller cleaning device for cleaning a roller provided with a cored bar projecting from both sides from a central part through a plurality of operations such as brush cleaning, rinsing, and drying, wherein each of the operating parts is separated by a predetermined distance. A pair of bearings are provided for each working part for the cores on both sides of the roller so that the cores can be placed and can be rotatably provided with a gap between them to form a straight line. To the outer ring of each of the plurality of bearings continuously arranged in series, contact the endless belt that is stretched between the plurality of pulleys in series, and the outer rings of the respective bearings corresponding to the cores on both sides of the roller are collectively A roller cleaning device characterized by being configured to be rotatable. 2. Between each of the working parts, the working part is inclined downward from one working part to the next working part so that the height of the lower end side is higher than the outer ring of the bearing of the next working part, and Rails for rolling and moving the metal cores of the rollers are arranged parallel to each other in the axial direction of the rollers, and the metal cores mounted on the bearings are provided between the bearings at respective working positions. The roller cleaning device according to claim 1, further comprising a roller unloading mechanism which is liftable and has an inclined portion in the same direction as the rail. 3. A working part for brush cleaning, wherein a pair of support shafts are arranged so as to face each other with respect to cores on both sides of a roller placed on the bearing, and the roller can be moved forward and backward. On the other hand, the roller cleaning device according to claim 1 or 2, wherein a cleaning brush that rotates in a direction opposite to the rotation direction is disposed so as to be able to come into contact with and separate from the roller.