JP2003093988A - Apparatus for cleaning roller member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a roller member cleaning apparatus for cleaning a roller member by surely immersing it in a cleaning liquid and then carrying the cleaned roller member out. SOLUTION: This roller member cleaning apparatus is provided with a cleaning liquid tank 10 in which the cleaning liquid L is housed, a conveying drum 1 which is rotated around the shaft center C of the horizontal direction in the tank 10 and a part of which is immersed in the liquid L, a guiding member 3 having in the tank 10 a recessed circular-arcuate section when viewed from the center C direction and pressing rods 2 projected radially from the outer peripheral surface 11 side of the drum 1 so that a gap is formed between the tip of each of the rods 2 and the member 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roller member cleaning device.

[0002]

2. Description of the Related Art Conventionally, as a cleaning device for cleaning the surface of a pipe-shaped roller member used for a paper supply, a discharge roller, etc. of a copying machine, a developing machine, etc., the side section of FIG. The one shown in the figure is used.

This cleaning device cleans the roller member 43 with the following configuration. The roller member 43 (workpiece) is charged into the cleaning liquid tank 42 containing the cleaning liquid from the supply port 41 at regular time intervals (minimum of about 6 seconds). Rolled-in roller member 43
Rolls on the first fixed slope 44 and the first elevating slope 45, contacts the wall surface of the next fixed slope, and stops at the first stop position 46. At this time, the work input sensor 47 detects the roller member 43, and after the elapse of a predetermined time by the timer, the first elevating slope 45 on which the roller member 43 is placed is raised. Then, the roller member 43 is
It rolls up and down the slope through the next fixed slope and stops at the next stop position. Further, the next roller member 43 is inserted from the supply port 41 and is conveyed in the same manner as above. Then, the roller member 43 that has been conveyed (washed) first rolls on the fixed slope and the rising and falling slope one after another by the ascent and descent of the rising and falling slope, is washed with the cleaning liquid in the cleaning liquid tank during that time, and stops at the final stop position To do. After that, the final ascending / descending slope 49 is raised to the upper position (delivery part) of the cleaning liquid tank, and the roller member 43 is delivered.

[0004]

There is no problem when the roller member 43 overcomes the buoyancy and is completely submerged (sinks) in the cleaning liquid, but the roller member 43 which floats in the cleaning liquid is conventionally used. The cleaning device of No. 1 has a problem that it cannot be transported and cleaning is incomplete. Further, since the roller member 43 is hollow, air is trapped inside (remaining) and floats on the cleaning liquid, so that there is a problem that the cleaning cannot be reliably performed when the roller member 43 is submerged in about half of the water.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a roller member cleaning apparatus which can completely and surely immerse a roller member in a cleaning liquid and then carry it out.

[0006]

In order to achieve the above object, a roller member cleaning apparatus according to the present invention includes a cleaning liquid tank containing a cleaning liquid, and a cleaning liquid tank that rotates about a horizontal axis. A conveying drum part of which is immersed in the cleaning liquid, a guide member in the cleaning liquid tank having the same axial center as the conveying drum and a concave arcuate cross section when viewed from the axial direction, and the outer peripheral surface side of the conveying drum. And a pressing rod that radially projects in the circumferential direction of the conveying drum and has a tip portion set to have a gap with the guide member, the pressing rod being configured to wash the roller member supplied from the supply unit in the cleaning liquid. It is configured so as to be conveyed while being dipped in and to be picked up by the roller member and conveyed to the unloading section.

Further, it is provided with a water supply means for generating a water flow in a direction parallel to the axis of the conveying drum in the cleaning liquid tank. Further, a small roller that is rotatable around an axis parallel to the axis of the transport drum is provided at the tip of the pressing rod. Further, a plurality of the small rollers are arranged at the tip of the pressing rod in the longitudinal direction of the pressing rod and / or in a direction parallel to the axis of the conveying drum, and the plurality of small rollers are mutually axially centered. It is also preferable that they are arranged so as not to be the same. Further, an auxiliary roller for assisting the conveyance of the roller member is provided above and below the water level of the cleaning liquid tank on the concave arc surface of the guide member.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below in detail based on the illustrated embodiments.

The roller member cleaning apparatus of the present invention is provided on the discharge side (post-process side) of a centerless polishing machine for processing the surface of the roller member. With this cleaning device, the polishing liquid and the grinding powder that adhere to the roller member are immersed in a cleaning liquid (working water) for cleaning and removal. Further, in the subsequent step of this cleaning device, a drying means for blowing away the cleaning liquid and drying is provided, and the roller member is manufactured.
The roller member cleaned by this cleaning device is a pipe-shaped roller, and is used as a paper supply roller for a copying machine or a developing machine, a paper discharge roller, or the like.

A cleaning device for a roller member according to the present invention will be described with reference to the side sectional view of FIG. 1 and the front sectional view of FIG. This cleaning apparatus has a cleaning liquid tank 10 having an opening above which a cleaning liquid L (working water) has entered up to a predetermined water level, and a position above the cleaning liquid tank 10 which rotates about a horizontal axis C.
Conveying drum 1 part of which is submerged in cleaning liquid L, and cleaning liquid tank 10
It is configured to have the same axis C as that of the transport drum 1,
And a guide member 3 having a concave arcuate cross section when viewed from the direction of the axis C. That is, the center of the arc of the guide member 3 coincides with the axis C.

The cleaning liquid tank 10 will be further described. On one side of the cleaning liquid tank 10 on the opening side (one side parallel to the axis C of the transport drum 1), the supply section 5 of the roller member 4 to be cleaned is provided.
On the other side of the opening (on the side facing the one side),
An unloading unit 6 is provided for unloading the cleaned roller member 4 and sending it to a subsequent drying process (not shown).

The transport drum 1 will be further described below.
As shown in FIG. 2, the rotary shaft 14 connected to the transport drum 1
Both ends of which are rotatably supported by bearings 13, 13 and one end of a rotary shaft 14 is connected to a speed reducer 16 and a motor 17 via a coupling 15, and the conveyance drum 1 is driven by the motor 17. Is rotated around the axis C (rotation axis). In addition, this rotation can be performed intermittently or intermittently.
Although not shown, the transport drum 1 may be a plate-wound tubular drum, or may be a drum-shaped one composed of a mesh frame frame.

The guide member 3 will be further described.
As shown in FIGS. 1 and 2, a concave arc-shaped guide surface 20 is formed from a bottom plate 18 of the cleaning liquid tank 10 via a support member 19 provided upright. This guide surface 20 may be provided with a small gap to the extent that the roller member 4 is not caught or fitted therein. Grinding powder (foreign matter) peeled off from the roll member 4 by the cleaning operation described later is not provided in the gap of the guide surface 20. It may be configured such that grinding powder (foreign matter) is not accumulated on the guide surface 20 by removing it from the cleaning surface (falling it on the bottom surface of the cleaning liquid tank 10).

Further, on the outer peripheral surface 11 side of the transport drum 1,
The transfer drums 1 are arranged so as to project radially at equal intervals in the circumferential direction of the transfer drum 1 (FIG. 1), and are further arranged linearly (in a row) at regular intervals in the direction of the axis C of the transfer drum 1 (FIG. 2). ) A plurality of pressing rods 2 are provided. More specifically, as shown in FIG. 1, the pressing rods 2 are arranged at four positions at a pitch of 90 ° when viewed from the axial center C direction so as to be equally spaced in the circumferential direction of the conveying drum 1. As shown in FIG. 2, six pressing rods 2 are arranged in a line in parallel with the axis C at equal intervals. Therefore, the cleaning work, which will be described later, requires length and size (diameter).
However, it is possible to deal with various roller members 4. It should be noted that the distance between the pressing rods 2 in the circumferential and axial directions (number)
May be changed.

Further, in FIGS. 1 and 2, the (six) pressing rods 2, ..., Arranged in the axial direction are connected at their base ends by one long plate-like connecting member 21 to form a comb. The connection member 21 is attached to the transport drum 1. This facilitates the arrangement of the presser bar 2, facilitates the manufacture of the transport drum 1, and the replacement / maintenance of a group of (6) comb-shaped presser bar in a straight line.

Further, as shown in FIG. 3, the tip portion 12 of the pressing rod 2 is set to have a gap α with the guide surface 20 of the guide member 3. That is, the pressing rod 2 is the conveying drum 1
The guide member 3 is rotated by the
Is formed apart from the locus of In other words, the guide surface 20 of the guide member 3 has an arc surface whose radius is larger than the radius of rotation of the tip of the pressing rod 2 about the axis C by the gap α. Further, this gap α will be described later, but along the guide member 3 (guide surface 20), the pressing rod 2
When the roller member 4 is conveyed while being pushed, the roller member 4 is set so as not to fit into or get caught in the gap α.

Further, the tip portion 12 of the pressing rod 2 shown in FIGS.
As shown in the side view and the front view of FIG. 1, the tip end 12 of each pressing rod 2 is provided with a small roller 8 rotatable about an axis parallel to the axis C of the conveying drum 1. This small roller 8
Is a rotating roller means having a diameter slightly larger than the thickness t (width) of the presser bar 2, and at the tip portion 12 of the presser bar 2 in the longitudinal direction of the presser bar 2 and / or the axis C of the transport drum 1. A plurality of them are arranged in a direction parallel to. Further, the plurality of small rollers 8 ... Are arranged so that their axial centers are not the same.

The small rollers 8 will be described more specifically. On each side of the one holding bar 2 in the direction of the axial center C of the conveying drum 1, two small rollers 8 are provided on each side of the holding bar 2.
4 are attached side by side with a minute interval in the longitudinal direction, and as shown in FIG. 4, the small rollers 8 and 8 on one side and the small rollers 8 and 8 on the other side have a small rotation axis. The pressing rod 2 is attached while being displaced in the longitudinal direction by a dimension of a substantially radius of 8. It is not necessary to provide the small rollers 8 on all the pressing rods 2, and the change can be freely made.

Next, returning to FIG. 1, the roller member 4 supplied from the supply unit 5 is conveyed by the pressing rod 2 while being immersed in the cleaning liquid L in the cleaning liquid tank 10 (while cleaning). The operation of picking up and transporting the roller member 4 to the carry-out section 6 and sending the roller member 4 out of the cleaning liquid tank 10 will be described.

The roller member (workpiece) 4 is discharged from a grinder (not shown), rolls on the inclined guide 22 of the supply section 5, and is stopped by the entrance shutter 23 (standby step). At this time, the work detection sensor 24 arranged above the entrance shutter 23 of the supply unit 5 detects the presence of the roller member 4, opens the entrance shutter 23, and drops the roller member 4 into the cleaning liquid tank 10 ( Material loading process). At this time, as shown in FIG. 1, the transport drum 1 is at a position (rotation angle position) where the liquid level of the roller member 4 is not blocked by the pressing rod 2.

At this time, the roller member 4 having a larger specific gravity than the cleaning liquid L is sunk as it is (to the deepest portion), and air remains in the roller member 4 having a smaller specific gravity than the cleaning liquid L or in the hollow portion of the roller member 4. Roller member 4 that floats
Initially remains floating on the liquid surface, but is pressed into the liquid by the pressing rod 2 as described below. Alternatively, if the air in the hollow portion of the roller member 4 escapes, it will sink naturally.

After the above detection is carried out by the work detection sensor 24, after the roller member 4 is inserted, the motor 17 of FIG. Rotate the presser bar 2 in the direction in which the presser bar 2 sinks in the clockwise direction (arrow A) in FIG. 1. At this time, the roller member 4 is forcibly pushed down by the pressing rod 2 even if it is floated on the liquid surface after being charged (cleaning step). Then, the pressing bar 2 on the rear side (opposite side in the rotation direction) of the pressing bar 2 that sunk the roller member 4 is
A presser bar sensor 25 provided at a predetermined upper position of the liquid level to be introduced detects the position, and the rotation of the transport drum 1 is temporarily stopped (stop cleaning state). That is, the presser bar 2 is 90
Since the roller members 4 are provided at a pitch of °, the pressing bar sensor 25 detects the position of the pressing bar 2 after the roller member 4 is completely pressed into the cleaning liquid L by the pressing bar 2 (the state of FIG. 1). In addition, the pressing rod sensor 25 may be provided. That is, one rotation operation of the transport drum 1 (one step)
Is a 90 ° rotation. Then, in the supply unit 5, the next roller member 4 goes through the standby process and the member charging process, and then proceeds to the cleaning process one after another.

The stop cleaning state will be described in detail. In this state, the pressing rod 2 in which the roller member 4 is pushed down and sunk.
The position of is closer to the front side (supply unit 5) than the vertically downward direction (lowermost point) (state of FIG. 1). That is, the roller member 4 is
In the case of a member that floats in the cleaning liquid, like the roller member 4 shown by the chain double-dashed line in FIG. 1, it escapes the lowest point of the transport drum 1 to the unloading section 6 side and floats on the cleaning liquid surface. This is to prevent it from being lost. Therefore, in the stop cleaning state, the holding rod 2 is set to be completely submerged in the cleaning liquid L before the holding rod 2 reaches the lowest point of the feeding drum 1 together with the lowest point of the feeding drum 1. There is.

Then, the next roller member 4 is charged, the transport drum 1 is rotated, and the roller member 4 which has been charged and cleaned in advance is loaded with the cleaning liquid L, as shown in FIG. It is transported while being washed. At this time, the roller member 4 which is submerged in the cleaning liquid L and conveyed along the guide member 3 (guide surface 20) is pushed while rotating the small roller 8 provided at the tip portion 12 of the pressing rod 2, so that the roller member 4 is pressed. The member 4 can move smoothly along the guide surface 20 of the guide member 3. Further, since the axes of the plurality of small rollers 8 are not the same, even if the roller member 4 has various diameters without the roller member 4 being fitted between the small rollers 8 and 8,
The roller member 4 can always be brought into uniform contact with the small rollers 8.

Further, in the cleaning liquid tank 10, a water supply means 7 for generating a water flow in a direction parallel to the axis C of the transport drum 1 in the cleaning liquid tank 10, and a draining means (not shown) on the opposite side of the water supply means 7. Is equipped with. Therefore, in a cleaning state in which the roller member 4 is immersed in the cleaning liquid L, the roller member 4 is
As shown in FIG. 3, since the cleaning drum L is cleaned (conveyed) with the axis C direction of the conveying drum 1 as the longitudinal direction, the cleaning liquid L is passed by the water flow of the cleaning liquid L to the inner surface of the pipe-shaped roller member 4, The air in the roller member 4 can be easily removed so that the air can be easily sunk, and furthermore, the inner surface of the roller member 4 can be reliably washed.

Then, the roller member 4 that has been washed (sinking) is pushed up by the pressing rods 2 arranged in a row (beyond the deepest portion of the guide member 3) to be scooped up and released from the cleaning liquid surface. At this time, as shown in FIG. 5, auxiliary rollers 9 and 9 for assisting the conveyance of the roller member 4 are provided above and below the water level of the cleaning liquid tank 10 (cleaning liquid L) on the concave arc surface of the guide member 3. ing. That is, two rotatable auxiliary rollers 9 are arranged along the guide surface 20 above and below the liquid surface of the cleaning liquid L on the carry-out section 6 side. Therefore, when the roller member 4 is scooped up from the cleaning liquid surface,
The auxiliary rollers 9, 9 rotate to help reduce the sliding friction of the roller member 4, and the transport drum 1 (motor 17)
There is no sudden increase in load (load fluctuation) on the driving force.

The roller member 4 that has escaped from the liquid surface is further
It is conveyed while being guided to an upper position by the rotation of the pressing rods 2 (unloading process), and rises to the top 26 of the cleaning liquid tank 10. Since the height of the top portion 26 of the carry-out portion 6 is set lower than the axis C of the transport drum 1, when the roller member 4 reaches the top portion 26, the presser bar 2 moves from the center C of the carry-out portion. 6
Since the roller member 4 has a sloped surface inclined downward to the side, the roller member 4 rolls over the pressing rod 2, passes over the top 26, and is carried out of the cleaning liquid tank 10 (a drying device (not shown)).

[0028]

The present invention has the following effects due to the above configuration.

When the roller member 4 is conveyed in the cleaning liquid tank 10 (according to claim 1), the roller member 4 floating in the cleaning liquid L,
Alternatively, even if the roller member 4 sinks in the cleaning liquid L, the entire roller member 4 can be reliably immersed in the cleaning liquid L for cleaning, and the roller member 4 can be conveyed to the unloading unit 6.

(According to the second aspect) The cleaning liquid L can be quickly submerged in the hollow portion of the roller member 4 by the water flow, and the inside of the roller member 4 can be surely cleaned. It is possible and the cleaning effect can be improved. Therefore, it is possible to shorten the cleaning time.

(According to claim 3) The roller member 4 can be smoothly conveyed along the guide member 3 without being fitted into the gap α between the pressing rod 2 and the guide member 3. Therefore, the roller member 4 is not damaged.

Even if the diameter of the roller member 4 varies (according to claim 4), the roller member 4 can be conveyed along the guide member 3 while surely contacting the small roller 8. Therefore, the roller member 4 is not damaged.

When the roller member 4 is removed from the cleaning liquid tank 10 (water surface) (according to claim 5), the auxiliary roller 9 is rotated to reduce the sliding friction of the roller member 4.
Of the roller member 4 and the sudden increase in load (load fluctuation) due to the weight of water remaining inside the roller member 4 and the like can be prevented from being applied to the conveyor drum 1 (motor 17). .

[Brief description of drawings]

FIG. 1 is a side sectional view showing an embodiment of a cleaning apparatus of the present invention.

FIG. 2 is a front sectional view showing a cleaning apparatus of the present invention.

FIG. 3 is a side view showing a tip portion of a pressing rod.

FIG. 4 is a front view showing a tip portion of a pressing rod.

FIG. 5 is a side view showing an auxiliary roller of a guide member.

FIG. 6 is a side sectional view of a conventional cleaning device.

[Explanation of symbols]

1 Transport drum 2 pressure rod 3 Guide member 4 Roller member 5 supply section 6 unloading section 7 Water supply means 8 small rollers 9 Auxiliary roller 10 Cleaning liquid tank 11 outer peripheral surface 12 Tip C axis L cleaning liquid α gap

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Takeshi Yasuhara             Mitsubishi Electric, 8 Nishino-cho, Higashi-Mukojima, Amagasaki City, Hyogo Prefecture             Line Industry Co., Ltd. F-term (reference) 2C250 FB05 FB23                 3B116 AA12 AA48 AB02 AB33 AB47                       BB01 CC03                 3B201 AA12 AA48 AB02 AB47 BB01                       BB92 CC12                 4F040 AA05 AB14 AC01 BA45 CC01                       CC15 DB10

Claims (5)

[Claims] 1. A cleaning liquid tank containing a cleaning liquid, a conveying drum which rotates around a horizontal axis in the cleaning liquid tank and is partly immersed in the cleaning liquid, and the same shaft as the conveying drum in the cleaning liquid tank. A guide member having a concave arcuate cross section viewed from the axial direction at the center, and a tip end portion having a gap with the guide member that radially projects in the circumferential direction of the transport drum on the outer peripheral surface side of the transport drum. And a pressing rod that is set, wherein the pressing rod is configured to convey the roller member supplied from the supply unit while being immersed in the cleaning liquid, to pick up the roller member and to convey the roller member to the unloading unit. Cleaning device for roller members. 2. The roller member cleaning device according to claim 1, further comprising water supply means for generating a water flow in a direction parallel to the axis of the transport drum in the cleaning liquid tank. 3. The roller member cleaning device according to claim 1 or 2, wherein a small roller rotatable around an axis parallel to the axis of the conveying drum is provided at the tip of the pressing rod. 4. A plurality of the small rollers are arranged at the tip of the pressing rod in the longitudinal direction of the pressing rod and / or in the direction parallel to the axis of the conveying drum. The roller member cleaning device according to claim 3, wherein the roller members are arranged so that their axes are not the same. 5. The auxiliary roller for assisting conveyance of the roller member is provided above and below the water level of the cleaning liquid tank on the concave arc surface of the guide member. Roller member cleaning device.