JP3362303B2 - Endless screen cleaning equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for cleaning an endless band screen, and more particularly to a flexible cylindrical (endless band) screen such as a lacquer screen used for rotary screen dyeing and rotary screen printing, and a solid screen. The present invention relates to a method and an apparatus for cleaning an endless band-shaped screen, which is suitable for regeneration of a flexible cylindrical (endless band-shaped) filter screen used for liquid separation (filtration) or solid-gas separation (for example, dust collection).

[0002]

2. Description of the Related Art Rotary screen dyeing is widely used as an important means for imparting color patterns to fabrics. A lacquer screen, which is a mainstream of an endless belt screen used for a rotary screen dyeing, has a cylindrical (endless belt) mesh (mesh) made of metal having fine pores on the entire surface, particularly nickel, as a base material. The openings of the metal mesh are partially masked with a resin film so as to match the desired pattern, and the color paste put into the cylinder from the non-masked portion is transferred as a color pattern onto the cloth with a squeegee.

[0003] Rotary screen printing is based on the same principle as the above-mentioned rotary screen dyeing, a screen surface using a cylindrical (endless belt) mesh (silver) made of metal having fine holes on the entire surface, or silk. ,Nylon,
Ink passage and non-passage areas are formed on a cylindrical (endless belt) screen surface made of a mesh (mesh) woven with threads such as Tetoron, and the squeegee pushes out the ink to hang it on paper or cloth. It is a printing method and is used as a printing method capable of precision printing and mass production. A lacquer screen (also referred to as a paint screen), which is a mainstream of endless strip screens used for rotary screen printing, mainly uses nickel mesh, stainless steel mesh, or the like.

A resin film for forming a mask of a lacquer screen used for the above-mentioned rotary screen dyeing or rotary screen printing is a metal such as nickel or stainless steel during handling after masking or during dyeing or printing. It is required to firmly adhere so that it does not come off from the mesh. On the other hand, peeling the robust resin film from the used cylindrical (endless band) nickel or stainless steel metal mesh
There is a desire to remove and recycle. The reason is that metal meshes such as nickel and stainless steel are very expensive, and there is an increasing demand for recycling in consideration of environmental protection.

As existing techniques for peeling a resin film from a metal mesh such as nickel, a pickling method with a strong acid, a swelling method with an organic solvent, a laser irradiation method and the like have been proposed.
Since the resin film needs to be firmly adhered to the metal mesh, such a harsh means is required to remove it.

[0006]

In the pickling method with a strong acid, an inorganic acid such as phosphoric acid is mainly used, and the dipping treatment is often performed under a heating condition of 50 ° C. or higher. Although it can be processed at low cost, it may be eluted as metal ions due to the oxidizing action on the mesh metal.
Along with this, there are problems that the strength of the metal mesh is reduced and water is contaminated by the eluted metal, and that the waste acid treatment requires high equipment cost and operation cost.

In the swelling method using an organic solvent, a chlorine-based low boiling point compound or an aromatic compound is used as the organic solvent. These have little effect on corrosion of the mesh metal. However, it is very likely that the organic solvent is easily vaporized to cause air pollution, and the liquid of the organic solvent leaked at the time of cleaning causes soil pollution. Furthermore, the problem of this method is that the working environment is deteriorated, and the worker may inhale the vaporized vapor of the organic solvent or may absorb it from the skin, which may impair his health.

The laser irradiation method irradiates a laser beam on the entire surface of the metal mesh to abrade the resin film, and is excellent in working environment, but has low productivity and high equipment cost and operation cost.

As described above, all of the existing techniques have problems, and although the endless belt-shaped screen made of a metal mesh after use is expensive, it cannot be regenerated once and is discarded. It is the current situation.

The present invention solves the above-mentioned problems of the prior art, does not cause deterioration of the working environment, environmental pollution, damage to the metal mesh, etc., the equipment cost and the operating cost are low, and the productivity (work efficiency) is high. High endurance and easy to treat wastewater, it is possible to easily recycle endless belt screens such as expensive lacquer screens used for rotary screen dyeing and rotary screen printing, or further solid-liquid separation (filtration) and solid gas It is an object of the present invention to provide a method for cleaning an endless belt-shaped screen, which is also suitable for recycling a flexible cylindrical (endless belt-shaped) filter screen used for separation (for example, dust collection) and the like, and an apparatus therefor.

[0011]

In order to solve the above-mentioned problems, the present invention provides a method for cleaning an endless belt-shaped screen, wherein the endless belt-shaped screen is held by a guide roller so that the endless belt-shaped screen can be freely rotated and stopped. Tension is applied to the entire surface of the belt-shaped screen, and a high-pressure water jetting means provided in the vicinity of the guide roller applies a jetting pressure of 100 to 250 MPa to the surface of the contact portion with the outer peripheral surface of the guide roller over the entire widthwise direction of the endless belt-shaped screen. It is configured to inject high-pressure water.

In order to solve the above-mentioned problems, the present invention places a cleaning device for an endless belt-shaped screen on a guide roller device for rotating the endless belt-shaped screen while holding the endless belt-shaped screen from the inner surface and a bottom inner surface of the endless belt-shaped screen. The tension applying means is provided with a tension roller that is driven by the rotation of the endless belt-shaped screen while applying tension to the endless belt-shaped screen, and a high pressure is applied to the contact portion surface of the endless belt-shaped screen with the outer peripheral surface of the guide roller. It is configured to include a high-pressure water jetting means for jetting water.

The above-mentioned cleaning device for an endless band screen is
It is preferable that the high-pressure water jetting means includes a multi-nozzle head and a driving means that rotates, swivels, or swings the multi-nozzle head.

Further, the cleaning device for the endless belt-shaped screen may further comprise means for relatively moving the endless belt-shaped screen in the width direction between the high-pressure water jetting means and the endless belt-shaped screen. desirable. In addition,
The relative moving means here means a moving means for moving the high-pressure water jetting means in the width direction of the endless belt-shaped screen, or a guide roller device holding the endless belt-shaped screen in the width direction of the endless belt-shaped screen. It means a moving means for moving.

Furthermore, the above-mentioned endless strip-shaped screen cleaning device is provided with a widthwise relative movement for controlling relative movement of the endless strip-shaped screen between the high-pressure water jetting means and the endless strip-shaped screen in the widthwise direction. A control device and a guide roller rotation control device for controlling rotation of the endless strip-shaped screen are provided, and the width direction relative movement control device and the guide roller rotation control device are controlled to control the high-pressure water jetting means. It may be configured to include a synchronization control device that synchronizes the relative movement in the width direction with respect to the endless strip screen and the rotation of the endless strip screen.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention and their operations will be described below with reference to the accompanying drawings.

FIG. 1 is a conceptual diagram showing the overall construction of an embodiment of the apparatus for cleaning an endless belt-shaped screen of the present invention according to claim 2, and FIG. 2 is the cleaning of the endless belt-shaped screen of the present invention according to claim 3. 1 shows the structure and operation of a rotary jet gun as one embodiment of the high-pressure water injection means 4 of the apparatus,
(A) is a side view, (b) is a bottom view showing a nozzle movement trajectory pattern. FIG. 3 is a conceptual diagram showing the overall configuration of an embodiment of the device of the present invention according to claims 4 and 5, and FIG. 4 is a line AA and a line BB of each of FIGS. FIG. 5 is a cross-sectional view, and FIG. 5 is an operation pattern A to C of the embodiment of the endless belt-shaped screen cleaning device of the present invention according to claims 3 to 5.
FIG. 5A shows a relative movement locus of the nozzle of the multi-nozzle head of the rotary jet gun with respect to the surface of the endless belt-shaped screen, (a-1) to (c-1) are development views of the respective endless belt-shaped screen surfaces, (a- 2) to (c-2)
Is a perspective view.

As shown in FIGS. 1 and 4, an embodiment of the endless strip-shaped screen cleaning device of the present invention according to claim 2 is an endless strip-shaped screen 1 such as a lacquer screen.
Roller device 2 for rotating while holding the blade from the inner surface
And a tension applying means 3 which is placed on the inner surface of the bottom of the endless strip-shaped screen 1 and which is provided with a tension roller 3r which applies tension to the endless strip-shaped screen 1 and is driven to rotate as the endless strip-shaped screen 1 rotates. , A plurality of high-pressure water jetting means 4 for jetting high-pressure water on the surface of the endless belt-shaped screen 1 in contact with the outer peripheral surface of the guide roller body 2g, for example, a rotary jet gun 4rj described later. Is configured.

The above embodiment is more specifically configured as follows. That is, the guide roller device 2 holds the endless strip-shaped screen 1 on the upper outer peripheral surface thereof, and has a cylindrical guide roller body 2g and a rotation shaft of one end of the guide roller body 2g (on the left side in the drawing of FIG. 1). Fixed bearing stand 2 fs that supports the bearing via bearings
And a rotary drive motor 2M connected to the tip of the rotary shaft
And an umbrella-shaped center 2pc which is inserted into the hollow portion at the other end of the guide roller body 2g (on the right side in the drawing of FIG. 1) and holds the guide roller body 2g so that their central axes coincide with each other.
A movable bearing stand 2ms having a built-in bearing for supporting the rotary shaft of the umbrella-shaped center 2pc, provided so as to be able to move forward and backward in the left and right direction indicated by arrow a, and having a lock handle 2rh for fixing the forward and backward movement at a desired position. It consists of and. The movable bearing stand 2ms has a lower base plate 2msb.
The lower surface of the base plate 2 is a smooth floor surface GF, and both end portions and both side surfaces of the upper surface of the base plate 2msb are guided by the base plate guides 2msg so that they can be slid back and forth without falling. Note that the embodiment of the configuration of the guide roller device is not limited to the above-mentioned embodiment, and may be any one having the following requirements. (1) The guide roller main body 2g is an endless strip-shaped screen 1
Is wound around a part of the outer peripheral surface from the inside thereof and is supported, and preferably has an outer diameter or an outer peripheral length that can be loaded inside almost all endless belt-shaped screens 1 to which the present invention is applied, and The endless belt-shaped screen 1 has an outer diameter or an outer peripheral length with a margin for mounting the tension roller 3r of the tension applying means 3 described later on the inner surface of the bottom portion. (2) When loading or unloading the endless belt-shaped screen 1, it is possible to open the support at one end of the guide roller main body 2g to make it a free end, and at the time of rotation of the guide roller main body 2g, always keep the one end. A guide roller support / bearing device capable of being supported coaxially with the rotating shaft of the other end being supported. (3) In order to smoothly rotate the endless strip-shaped screen 1 wrapped around the outer periphery when cleaning the endless strip-shaped screen 1, the guide roller main body 2g has a columnar or cylindrical shape with an outer peripheral surface having a circular cross section. . (4) The guide roller main body 2g, together with the tension roller 3r placed on the inner surface of the bottom of the endless belt-shaped screen 1 and driven to rotate, supports the entire surface of the endless belt-shaped screen 1 while tensioning it, and the outer peripheral surface of the guide roller main body 2g. The inner surface of the endless belt-shaped screen 1 is strongly pressed against a part of the above to make intimate contact. That is, the guide roller main body 2g is rotated while supporting the endless belt-shaped screen 1 from the inside, and at the same time, receives the high-pressure water jet from the high-pressure water jetting means 4 on the outer peripheral surface in contact with the inner surface of the endless belt-shaped screen 1. All that is required is that it is possible to clean the entire screen, which is a thin metal mesh, without deforming it.

The tension roller 3r of the tension applying means 3 is, as shown in FIGS. 1 and 4, a bottom portion of the endless belt-shaped screen 1 whose inner surface is held around the upper portion of the outer peripheral surface of the guide roller main body 2g. Both ends of the tension roller 3r placed on the inner surface and protruding from both ends in the width direction of the endless belt-shaped screen 1 are not supported by bearings or the like. Therefore, the endless belt-shaped screen 1 is stretched over its entire width by the weight of the tension roller 3r, and the inner surface of the upper portion of the endless belt-shaped screen 1 is also pressed against the upper outer peripheral surface of the guide roller body 2g. The preferred size of the tension roller 3r is an outer diameter that does not exceed the outer diameter of the guide roller body 2g, and its length is equal to or greater than the width of the endless belt-shaped screen 1 and may be a hollow cylinder or a solid cylindrical shape. May be The weight of the tension roller 3r is equal to that of the endless belt screen.
The outer diameter, the wall thickness, etc. may be set so that the tension applied to 1 is in an appropriate range.

As shown in FIGS. 1 and 4, in the high-pressure water jetting means 4 comprising the rotary jet gun 4rj, the inner surface of the endless belt-shaped screen 1 is in contact with the outer peripheral surface of the guide roller main body 2g, and , The tension roller 3r
Is provided so as to face the surface of the endless belt-shaped screen 1 at a portion strongly pressed against the outer peripheral surface of the guide roller main body 2g by the tension due to, and is configured to inject high-pressure water onto the surface. In addition, in the present embodiment, FIG.
As shown in FIG. 1, the rotary jet gun 4rj is so arranged that the high-pressure water jetting means 4 composed of the rotary jet gun 4rj covers the entire width of the endless belt-shaped screen 1.
Are arranged in a zigzag pattern or in series so that the high-pressure water jet ranges from the adjacent rotary jet guns 4rj overlap in the width direction of the endless belt screen 1 to some extent in the width direction of the endless belt screen 1.

On the other hand, the high-pressure water supply device for supplying high-pressure water to the high-pressure water injection means 4 is constructed as follows. That is, the water supply filter unit 4fu for filtering and cleaning the water supply from the water supply source 4ws, and the water supply filter unit 4
Ultra high pressure pump unit 4pu that boosts low pressure water supplied from fu to 100-250MPa, and ultra high pressure water supply main line (hose) that supplies water from the ultra high pressure pump unit 4pu to the distributor 4db through the main ultra high pressure shutoff valve 4mv )
4 muh, ultra high pressure water supply branch line (hose) 4buh for supplying water from the distributor 4db to each of the plurality of rotary jet guns 4rj, and the width of the endless belt-shaped screen 1 held by the guide roller main body 2g So that high-pressure water can be jetted, at least both ends in the width direction of the endless strip-shaped screen 1 or one end in the width direction
Or a plurality of ultra high pressure water supply branch pipes (hoses) 4buh and ultra high pressure shutoff valves 4bv. However, instead of the ultra high pressure shutoff valve 4bv provided in the above ultra high pressure water supply branch line (hose) 4buh, each rotary jet gun 4rj
An ultra high pressure shut-off valve (not shown) may be provided.

The operation of the embodiment of the present invention according to claim 2 configured as described above and the embodiment and operation of the method for cleaning an endless belt screen according to claim 1 of the present invention will be described with reference to FIG. 4 will be described below with reference to FIG.

1. Operation preparation work process (1) Move the movable bearing stand 2ms holding the shaft of the umbrella-shaped center 2pc of FIG. 1 back to the standby position indicated by the chain double-dashed line on the right side of FIG. A sufficient working space is created between the right free end and the tip of the umbrella-shaped center 2pc. (2) Using the working space, the endless belt-shaped screen 1 is fitted from the right free end of the guide roller body 2g to a predetermined position in the width direction of the guide roller body 2g. (3) The movable bearing stand 2ms is advanced toward the right free end of the guide roller body 2g, and the umbrella-shaped center 2pc is placed in the hollow portion at the right end of the guide roller body 2g.
Insert the slant surface of the umbrella-shaped center 2pc until the inner peripheral end of the guide roller main body 2g abuts so that the right end of the guide roller main body 2g is aligned with the central axis of the guide roller main body and the central axis of the umbrella-shaped center. Hold it. At this position, the lock handle 2rh is operated to lock the movement of the movable bearing stand 2ms. (4) Insert the tension roller 3r inside the endless belt-shaped screen 1 held around the upper outer peripheral surface of the guide roller main body 2g, and place the tension roller 3r on the inner surface of the bottom of the endless belt-shaped screen 1. To do. As a result, the endless belt-shaped screen 1 is stretched over its entire width by the weight of the tension roller 3r, and the surface of the endless belt-shaped screen 1 in contact with the upper outer peripheral surface of the guide roller body 2g is the guide roller body. It is strongly pressed against the outer surface of 2g. Therefore, when the guide roller main body 2g is rotated, the guide roller main body 2g is rotated.
Idling due to slippage between the outer peripheral surface and the inner surface of the endless belt-shaped screen 1, and the high-pressure water jetted from the high-pressure water jetting means 4 hits the outer peripheral surface of the guide roller body 2g and is blown up by the reversing jet stream. It prevents or prevents misalignment. Further, the metal mesh as the base material of the lacquer screen is usually about 100 μm in thickness and extremely thin and flexible and easily deformed, but it is supported by the outer peripheral surface of the guide roller main body 2g and the tension roller 3 is used.
The tension due to r prevents deformation when high-pressure water is jetted.

2. Cleaning work step (1) The rotation drive motor 2M of the guide roller device 2 is activated to rotate the guide roller main body 2g and the endless belt-shaped screen 1 held by the guide roller main body 2g as shown in FIG. The tension roller 3r placed on the inner surface of the bottom of the endless belt-shaped screen 1 is driven to rotate as the endless belt-shaped screen 1 rotates. Therefore, like a tension roller with an independent rotary drive,
The rotation synchronization control is not required so as to synchronize with the rotation of the endless strip screen 1. (2) While rotating the endless strip-shaped screen 1 as described above, the guide roller main body 2g is discharged from the high-pressure water jetting means 4.
At the same time, high-pressure water is jetted toward the vicinity of the top of the outer peripheral surface of the endless belt-shaped screen 1 and the entire surface of the endless belt-shaped screen 1 is simultaneously sprayed to remove and remove the deposits attached to the endless belt-shaped screen 1. At this time, according to the width of the endless belt-shaped screen 1, a plurality of rotary jet guns 4rj arranged in the widthwise direction of the endless belt-shaped screen 1 have high-pressure water in a range outside both ends of the endless belt-shaped screen 1 in the width direction. Ultra-high pressure shutoff valve 4b provided in an ultra-high pressure water supply branch line (hose) 4buh to the rotary jet gun 4rj at a position where injection is performed
Alternatively, the ultra high pressure shut-off valve (not shown) provided on the rotary jet gun 4rj is closed to inject high-pressure water to the minimum necessary range. In addition, the discharge pressure of the high-pressure water required to wash and remove the resin film firmly attached to the lacquer screen as described above is 100 to 250 MPa.
The more preferable discharge pressure is 150 to 200 MPa from the viewpoint of the peeling state of the resin film and the productivity. Further, at the above discharge pressure, it is appropriate that the distance between the tip of the nozzle of the rotary jet gun 4rj and the surface of the endless belt-shaped screen is 10 to 30 mm. (3) When the endless belt-shaped screen 1 is rotated a predetermined number of times required to wash and remove the deposits obtained by experiments in advance, the high-pressure water jetting means 4 stops the jetting of high-pressure water. The operation of the rotary drive motor 2M is stopped, and it is inspected that the adhering matter is completely removed from the surface of the endless belt-shaped screen 1 whose rotation is stopped. If the adhered matter remains, the steps (1) and (2) are repeated, and when the complete removal of the adhered matter is confirmed, the process proceeds to the next step.

3. Post-Working Step (1) After pulling out the tension roller 3r from the inside of the endless belt-shaped screen 1, the lock handle 2rh of 2 ms of the movable bearing stand is operated to release the lock, and 2 ms of the movable bearing stand is released. It is retracted to the standby position shown by the chain double-dashed line in FIG. (2) Endless strip-shaped screen 1 from the guide roller body 2g
Pull out.

According to the embodiment of the device of the present invention according to claim 2 and the embodiment of the method of the present invention according to claim 1, the work environment is deteriorated, the environment is polluted, the metal mesh is damaged, etc. Endless belt shape such as expensive lacquer screen used for rotary screen dyeing and rotary screen printing, etc., low equipment cost, low operating cost, high productivity (work efficiency), easy wastewater treatment The screen can be easily reproduced.

In the embodiment of the present invention according to claim 2 described above, the required number of the rotary jet guns 4rj as the high-pressure water injection means 4 is large, and therefore the total required capacity or the required amount of the high-pressure water supply device is required. There is a problem that the cardinality increases. However, since the entire width of the endless belt-shaped screen 1 can be washed all at once, the time for each washing is greatly reduced, and the high-pressure water jetting means 4 and the guide roller device 2 for holding the endless belt-shaped screen 1 are used. Does not require a width-direction relative movement means for moving the endless belt-shaped screen 1 in the width direction and an operation control device therefor, and
The rotation control device for the guide roller 2g becomes simple.
Further, in order to uniformly wash the entire surface of the endless belt-shaped screen 1, there is also an advantage that a synchronization control device for synchronizing the rotation of the endless belt-shaped screen 1 and the movement of the widthwise relative moving means is unnecessary. is there.

The reason for limiting the discharge pressure range of 100 to 250 MPa required for cleaning and removing the resin film strongly adhered to the lacquer screen is as follows. (1) If it is less than 100 MPa, the impinging force of the jetted water jet on the lacquer screen is too weak to cleanly remove the adhered resin film. (2) When the pressure exceeds 250 MPa, the impact force of the jetted water jet on the lacquer screen is too strong and the mesh material of the screen is damaged.

Next, the rotary jet gun 4rj as one embodiment of the high-pressure water jetting means 4 which is a component of the endless belt-shaped screen cleaning device according to the third aspect of the present invention.
The configuration will be described with reference to FIG. In FIG. 2, a rotary bearing portion (not shown) is provided inside the rotary jet gun body 30, and the base end portion of the rotary pipe portion 32 is inserted into the rotary bearing portion and rotatably held.
Between the outer peripheral surface of the base end portion of the rotary pipe portion 32 and the inner surface of the rotary bearing portion, a rotary seal means (not shown) for preventing leakage of ultrahigh pressure water is provided. A multi-nozzle head 34 is connected to the tip of the rotary tube portion 32 via a connecting portion 33, and the multi-nozzle head 34 is provided with a plurality of nozzles 34n arranged on the same circumference. On the other hand, the rotation driving means 35 of the multi-nozzle head 34 is connected to an air motor or an electric motor 36, the tip of the rotation shaft of the air motor or the electric motor 36, and a drive gear (not shown) built in a gear box 37, and the drive gear. It is composed of a driven gear (not shown) which is engaged with a gear and is fixed to the outer periphery of the base end portion of the rotary tube 32 inside the gear box 37.

The ultra high pressure water is supplied into the rotary jet gun body 30 from an ultra high pressure water connection port provided at an end of the rotary jet gun body 30 opposite to the multi-nozzle head 34. Then, the rotary pipe 32 is inserted into the rotary bearing portion of the rotary jet gun body 30 and enters the inside of the rotary pipe 32 from the tip end of the base end portion of the rotary pipe 32. It enters the multi-nozzle head 34 and is ejected from a plurality of nozzles provided in the multi-nozzle head.

When the rotary jet gun 4rj constructed as described above is moved in the direction of the arrow (t) while being rotated in the direction of the arrow (r), the nozzle as shown in FIG. 2 (b) is obtained. A movement locus 34tn is obtained, and a uniform jet water amount distribution is obtained within the range of the width Wtn of the nozzle movement locus 34tn.

The high-pressure water jetting means 4 which is a component of the endless strip-shaped screen cleaning device of the present invention according to claim 3 is provided.
The embodiment is not limited to the rotary jet gun 4rj shown in FIG.
As disclosed in Japanese Unexamined Patent Publication No. 0-31366, the multi-nozzle head may be eccentrically formed at a predetermined angle with respect to the central axis of the gun so as to be rotated. In such a high-pressure water jet gun, each of the nozzles at the tip moves in a small circle, and by moving the gun in a certain direction, the movement loci of the spiral nozzles are gathered, It is possible to obtain a dense and uniform distribution of the amount of water sprayed within the width of the movement track as a whole. Further, even if the multi-nozzle head is swung with respect to the jet gun body in a left / right / front-back direction with a predetermined width (angle) like a pendulum, the same effect of uniforming the water distribution can be obtained. To be Further, the rotation or swiveling of the multi-nozzle head as described above is preferable because a uniform jet water amount distribution is obtained and the productivity is improved, but it is not always necessary to perform the jetting as uniform as possible without rotating or swirling. By using one or a plurality of nozzles and / or a multi-nozzle head having a nozzle arrangement capable of obtaining a water amount distribution, the resin film or the like can be peeled and removed from the lacquer screen or the like.

Next, the configuration of an embodiment of the endless belt-shaped screen cleaning device of the present invention according to claim 4 will be described with reference to FIGS.
Will be explained. The endless strip-shaped screen cleaning device of this embodiment is different from the embodiment of the present invention according to claim 2 shown in FIG. 1 in the following points. That is,
In the embodiment of the present invention according to claim 2 shown in FIG. 1, in order to clean the entire width direction of the endless belt-shaped screen 1 whose inner surface is held by the guide roller body 2g,
While a plurality of rotary jet guns 4rj are arranged to cover the entire width direction to constitute the high-pressure water jetting means, in the present embodiment, two rotary jet guns 4rj are shown in FIG. As shown in FIG. 4, the endless belt-shaped screen 1 is arranged in parallel in the width direction, or the guide roller main body 2g is arranged in parallel in the circumferential direction as shown in FIG. The moving means 5 for reciprocating in the width direction of the endless belt-shaped screen is provided and basically configured.

The high-pressure water supply device for supplying high-pressure water to the high-pressure water injection means 4 is constructed as follows. That is, the water supply filter unit 4fu for filtering and cleaning the water supply from the water supply source 4ws, the ultra-high pressure pump unit 4pu for increasing the low-pressure water supplied from the water supply filter unit 4fu to 100 to 250 MPa, and the ultra-high pressure Ultra high pressure water supply main line (hose) 4muh for supplying water from the pump unit 4pu to the distributor 4db, and ultra high pressure water supply branch line (hose) for supplying water from the distributor 4db to each of the two rotary jet guns 4rj With 4buh.

The moving means 5 of the high-pressure water jetting means 4 is
More specifically, it is configured as follows. That is, a pair of sprocket wheels 5swl, 5swr installed above the left and right ends of the guide roller body 2g in the longitudinal direction.
The moving carriage 5ca having the high-pressure water jetting means 4 consisting of the two rotary jet guns 4rj is fixed to either one of the upper and lower chains of the chain 5ch wound around the chain, and the other carriage is connected to the moving carriage. A guide means such as a driven sprocket wheel, a driven guide wheel, or a guide pipe (not shown) provided on 5ca can be engaged to keep the posture of the moving carriage 5ca, for example, vertically constant. FIG. 3 of the pair of sprocket wheels
The forward / reverse rotary drive motor 5M2 for normal speed movement of the carriage 5ca is connected to the rotary shaft of the sprocket wheel 5swl on the left side of the paper of FIG. 3 through the electromagnetic clutch 5crl, while the sprocket wheel 5swr on the right side of the paper of FIG. A forward / reverse rotary drive motor 5M3 for high speed movement of the movable carriage 5ca is connected to the rotary shaft via an electromagnetic clutch 5crr. Switching of the moving speed of the moving carriage 5ca is performed by selectively performing connection / disconnection operation of the electromagnetic clutches 5crl and 5crr. The normal / reverse rotation drive motor 5M2 for moving the normal speed is connected to a power source having a frequency conversion device, for example, so that the rotation speed can be changed as necessary. The moving speed of the endless belt-shaped screen 1 is synchronized with the rotation speed of the endless belt-shaped screen 1.
It can be changed according to the difficulty level of cleaning / removing the adhered substances.

In order to keep the moving range of the moving carriage 5ca within the minimum necessary range, and to keep the high-pressure water jetting range in the width direction of the endless belt-shaped screen 1 of the high-pressure water jetting means 4 within the necessary minimum range. Between the pair of sprocket wheels 5swl and 5swrt, in order from the left side of FIG. 3, the standby position (original position) of the moving carriage 5ca when not in operation,
The left end position of the endless belt-shaped screen 1 held by the guide roller main body 2g, the right end position of the narrow endless belt-shaped screen 1, and the right end position of the wide endless belt-shaped screen 1 are sequentially moved from the left to the standby position of the carriage (the original position). Position) Stop limit switch LS1, injection start limit switch LS
2. Narrow screen injection stop limit switch LS
3. Wide screen injection stop limit switch LS4
Are provided respectively. A striker (not shown) for operating the limit switches LS1 to LS4 is fixed on the movable carriage 5ca. It should be noted that each of the injection start limit switch LS2, the narrow screen injection stop limit switch LS3, and the wide screen injection stop limit switch LS4 is provided with the movable carriage 5ca.
Within the range corresponding to the width of the endless belt-shaped screen 1, the limit for signal transmission at the time of stopping the moving carriage 5ca when performing a turning operation (reciprocating movement) and starting the reversing (folding) of the moving carriage 5ca It also serves as a switch.

The two rotary jet guns 4rj are fixed to the tip of the piston rod of the air cylinder 5acy fixed to the upper part of the moving carriage 5ca and are provided so as to be movable up and down. The solenoid valve 5sv is used to selectively supply compressed air supplied from 5as to either the ascending or descending port of the air cylinder 5acy so that it can be raised or lowered.

The purpose of making the rotary jet gun 4rj movable up and down by the air cylinder 5acy as described above is as follows. That is, when the high-pressure water is jetted from the rotary jet gun 4rj to clean the endless belt-shaped screen 1, the endless belt-shaped screen 1 is
The rotary jet gun 4rj is lowered so that the tip of the nozzle 34n is brought close to a position 10 to 30 mm from the surface of the nozzle so that cleaning can be performed efficiently. However, in the following cases, raise the rotary jet gun 4rj. a) When the endless belt-shaped screen 1 is inserted into or removed from the guide roller body 2g, the endless belt-shaped screen 1 does not interfere with or come into contact with the nozzle. b) Make it easier to visually check for nozzle clogging. c) Prevent the surface of the endless belt-shaped screen 1 and the guide roller body 2g from being eroded by the high-pressure water jet when the pressure of the water jetted from the nozzle is raised at the start of the jetting or lowered when the jetting is stopped. This is because the movement / rotation of the nozzle head stops during pressure increase / decrease, and a certain amount of time is required until the discharge pressure reaches the set value at the start of injection, so the high pressure jet water jetted from the nozzle causes the endless strip screen 1 and the surface of the guide roller body 2g are directly and intensively hit, the rotary jet gun 4rj is descending, and the distance between the nozzle and the surface of the endless belt-shaped screen 1 or the guide roller body 2g is high. This is because the collision energy of the water jet becomes very large.

Further, the endless band-shaped screen cleaning device of the present embodiment configured as described above has a structure from the water supply source 4ws of the high-pressure water supply device to the end of the ultra-high-pressure water supply main pipe (hose) 4muh. Except for the compressed air supply source 5as and the solenoid valve 5sv, the air that is surrounded by the cleaning chamber 15 and contains the vapor and mist generated from the endless band-shaped screen cleaning device is located above the side wall of the cleaning chamber 15. It is sucked by the exhaust fan 16 from the exhaust hole 15h, the mist is removed by the mist removing device 17, and then discharged into the atmosphere.

Furthermore, the high-pressure water jetting means 4 is used to wash and remove the deposits on the surface of the endless belt-shaped screen 1, and the waste water and the waste liquid in which the deposits are mixed and suspended are disposed below the guide roller main body 2g. It flows down on the sloping floor surface 15f, flows on the sloping floor surface 15f in the left direction of the paper surface of FIG.
Through the waste water / waste liquid pipe 15wo connected to the bottom of the side wall of
It is sent to a waste water / waste liquid treatment device (not shown), and the adhering substances mixed and suspended are removed by a filter or the like.

Next, in the embodiment of the endless belt-shaped screen cleaning device of the present invention shown in FIGS. 3 and 4, the endless belt-shaped screen 1 is rotated / stopped in order to uniformly clean the entire surface of the endless belt-shaped screen 1. And the movement of the high pressure water jetting means 4 consisting of the rotary jet gun 4rj in the left and right directions.
Three types of operation patterns, which are easy to synchronize with each other in combination with stop, will be described below with reference to FIG.

A) Pattern A: FIGS. 5A-1 and 5A-
2) Reference In this pattern, while the rotation of the endless belt-shaped screen 1 is stopped at a certain position, the high-pressure water jetting means 4 jets high-pressure water, for example, at a predetermined speed from the left end of the endless belt-shaped screen 1. Move to the right, endless band screen 1
Stop at the right end of. While continuing the high-pressure water jetting, the endless strip-shaped screen 1 is rotated again by a circumferential length equal to the width of the moving trajectory of the nozzle of the high-pressure water jetting means 4 composed of the rotary jet gun 4rj, and then stopped again. This time, the endless strip-shaped screen 1 is moved to the left from the right end at a predetermined speed and temporarily stopped at the left end of the endless strip-shaped screen 1. While continuing the high-pressure water jetting, the endless belt-shaped screen 1 is rotated again by the circumference length equal to the width of the movement locus of the nozzle and stopped again. Such movement is repeated. In such an operation pattern, a movement locus of the nozzle with respect to the endless belt-shaped screen 1 as shown in FIGS. 5A-1 and 5A-2 is obtained, and such movement locus is the entire surface of the endless belt-shaped screen 1. Continue with the above operating pattern until is covered.
If it is difficult to remove the adhering matter on the endless belt-shaped screen 1, for example, by rotating the endless belt-shaped screen 1 by half the width of the movement locus of the nozzle at one time, it is possible to wash it by two passes. Good.

B) Pattern B: FIG. 5 (b-1), (b-
2) Reference In this pattern, while continuously rotating the endless belt-shaped screen 1, the high-pressure water jetting means 4 is continuously moved to the right at a low speed from the left end of the endless belt-shaped screen 1, for example.
Stop at the right end of the endless strip screen 1. At this time, while the endless belt-shaped screen 1 makes one rotation, the high-pressure water jetting means 4 composed of the rotary jet gun 4rj moves rightward by the same width as the movement locus of the nozzle so as to move rightward. And the continuous moving speed of the high-pressure water jetting means 4 are synchronized. In such an operation pattern, a movement locus of the nozzle with respect to the endless belt-shaped screen 1 as shown in FIGS. 5B-1 and 5B-2 is obtained, and such movement locus is the entire surface of the endless belt-shaped screen 1. The above operation pattern is continued until the above is covered. When it is difficult to remove the adhering matter on the endless belt-shaped screen 1, for example, the high-pressure water jetting means 4 may be moved by half the width of the movement locus of the nozzle in one rotation of the endless belt-shaped screen 1. By doing so, the cleaning may be performed every two passes.

C) Pattern C: FIG. 5 (c-1), (c-
2) Reference In this pattern, while the high-pressure water jetting means 4 is stopped at a certain position, high-pressure water is jetted, and the endless belt-shaped screen 1 is rotated once and stopped. While continuing the high-pressure water injection, the high-pressure water injection means 4 is moved to the right by the same width as the width of the movement trajectory of the nozzle of the rotary jet gun 4rj, and stopped again. Next, the endless strip-shaped screen 1 is rotated once and stopped while jetting high-pressure water. While continuing the high-pressure water injection, the high-pressure water injection means 4 is again moved to the right by the same width as the width of the movement locus of the nozzle and stopped again. In such an operation pattern, FIG. 5 (c-1), (c-2)
The movement locus of the nozzle with respect to the endless belt-shaped screen 1 as shown in (1) is obtained, and the above operation pattern is continued until the movement locus covers the entire surface of the endless belt-shaped screen 1. In addition, when it is difficult to remove the deposits on the endless belt-shaped screen 1, for example, when the endless belt-shaped screen 1 makes one rotation, the high-pressure water jetting means 4 is moved by half the width of the movement locus of the nozzle. By doing so, the cleaning may be performed every two passes.

The operation of the embodiment of the invention according to claim 3 configured as described above and the embodiment of the invention according to claim 1 will be described below with reference to FIGS. 3, 4 and 5. To do.

1. Preparatory work step (1) The moving means 5 of the high-pressure water jetting means 4 is operated to retract the moving carriage 5ca to the position of the standby position (home position) stop limit switch LS1 on the left side of FIG. At this time, the two rotary jet guns 4rj are raised by the air cylinder 5acy. (2) The movable bearing stand 2ms for holding the shaft of the umbrella-shaped center 2pc in FIG. 3 is retracted to the standby position indicated by the alternate long and short dash line on the right side of FIG. Create a sufficient working space between the tip of the umbrella type center 2pc. (3) Using the working space, the endless belt-shaped screen 1 is placed from the right free end side of the guide roller body 2g at a predetermined position in the width direction of the guide roller body 2g, that is, the right end in the width direction of the endless belt-shaped screen 1. The injection start limit switch LS1 is externally fitted so as to come to the position. Then, depending on the width of the endless belt-shaped screen 1, the central operation panel 23 of the cleaning device is used to eject the spray stop limit switch L for the narrow screen.
Jet stop limit switch LS for S3 or wide screen
Any one of 4 is selected. (4) The movable bearing stand 2ms is advanced toward the right free end of the guide roller main body 2g so that the umbrella-shaped center 2pc is guided to the hollow portion at the right end of the guide roller main body 2g and the slope of the umbrella-shaped center 2pc is guided. The roller body 2g is inserted until it comes into contact with the inner peripheral end of the roller body 2g, and the right end of the guide roller body 2g is held so that the central axes of the two are aligned. At this position, the lock handle 2rh is operated to lock the movement of the movable bearing stand 2ms. (5) Inside the endless belt-shaped screen 1 which is wound around the upper outer peripheral surface of the guide roller body 2g and held, the endless belt-shaped screen 1 has a hollow cylindrical shape having an outer diameter smaller than that of the guide roller 2g. The tension roller 3r longer than the width is inserted, and the tension roller 3r is placed on the inner surface of the bottom of the endless belt screen 1. As a result, the endless belt-shaped screen 1 is stretched over its entire width by the self-weight of the tension roller 3, and the guide roller main body 2
The surface of the endless belt-shaped screen 1 in the portion in contact with the upper part of the outer peripheral surface of g is strongly pressed against the outer peripheral surface of the guide roller main body 2g.

2. Cleaning Work Step The entire surface of the endless belt-shaped screen 1 is uniformly cleaned according to any of the three types of operation patterns A to C of the present embodiment shown in FIG. (1) in a state of increasing the rotary jet cancer 4Rj, a movable carriage 5ca, by the high-speed movement forward and reverse rotary motor 5M _3, is moved to the right direction indicated by the arrow F at a high speed, it starts to move carriage 5ca the injection When moving to the position of the limit switch LS1, the high pressure water is started to be jetted from the rotary jet gun 4rj, and when the discharge pressure reaches the set pressure, the rotary jet gun 4rj is set to a standoff distance (nozzle tip and outer peripheral surface of the guide roller body 2g). (Set distance between). (2) Then, the cleaning of the endless belt-shaped screen 1 is started according to any of the operation patterns A to C. In addition,
The moving speed of the moving carriage 5ca during cleaning is set to the above-mentioned operation patterns A to C and the degree of difficulty of cleaning and removing the deposits on the endless belt-shaped screen 1 by using the normal speed moving forward / reverse rotation 5M ₂ as a driving source. The speed is controlled accordingly. (3) The movable carriage 5ca is an endless band-shaped screen of the jet stop limit switch LS3 for narrow screen or the jet stop limit switch LS4 for wide screen.
In the case of the operation pattern A, when the movable carriage 5ca is temporarily stopped when it reaches the position selected in advance according to the width of 1, the endless belt-shaped screen 1 is kept in a predetermined state while continuing the high-pressure water injection. After rotating by the circumference, it stops, and then the moving carriage 5ca turns back (reverses) to the left as shown by the arrow E by the reverse rotation of the normal speed moving forward / reverse rotation 5M ₂ .
After returning to the position of the injection start limit switch LS2, the movable carriage 5ca and the endless belt-shaped screen 1 are in the selected position of the narrow screen injection stop limit switch LS3 or the wide screen injection stop limit switch LS4. The same operation as the above operation is repeated until the cleaning is completed. Further, in the case of the operation pattern B or C, since the cleaning of the endless belt-shaped screen 1 is completed, the injection of the high pressure water by the rotary jet gun 4rj is stopped, and the rotary jet gun 4rj is operated by the air cylinder 5acy. Then, the motor is moved upward, and thereafter, the forward / reverse rotation type motor 5M ₃ for high speed movement is rotated in the reverse direction to quickly return to the position of the standby position (original position) stop limit switch LS1.

3. Post-Working Step (1) After pulling out the tension roller 3r from the endless belt-shaped screen 1, the movable bearing stand 2ms
The lock handle 2rh is operated to release the lock, and the movable bearing stand 2ms is retracted to the standby position shown by the one-dot chain line in FIG. (2) Endless strip-shaped screen 1 from the guide roller body 2g
Pull out.

According to the embodiment of the present invention according to claim 3 and the embodiment of the method according to the present invention as described above, the rotary jet gun 4rj as the high-pressure water jetting means 4 is provided. The required number is small, and it does not cause deterioration of working environment, environmental pollution, damage to metal mesh, etc., low equipment cost and operating cost, high productivity (work efficiency), and easy wastewater treatment. It is possible to easily reproduce endless belt-shaped screens such as expensive lacquer screens used for rotary screen dyeing and rotary screen printing.

As another embodiment of the endless belt-shaped screen cleaning device of the present invention according to claim 4, the two rotary jet guns 4rj are fixedly arranged and the inner surface is held by the guide roller main body 2g. In order to clean the entire width of the strip-shaped screen 1, the guide roller device 2 is mounted and a self-propelled carriage 10 that reciprocates in the width direction of the endless strip-shaped screen 1 is provided, and it is basically configured. Good.

Further, in the above-mentioned embodiment, the high-pressure water jetting means 4 is provided with the two rotary jet guns 4rj. However, when the required cleaning / removing work efficiency is not very high or the adhered matter is If it is easy to remove, it may be configured with only one rotary jet gun 4rj.

Further, in the embodiment of the present invention shown in FIGS. 1 and 3, the tension applying means 3 is
Although it is composed of only one tension roll 3r, any structure may be used as long as it uniformly applies tension to the surface of the endless belt screen 1. Further, for example, the following configurations and actions may be provided. That is, on the fixed bearing stand 2fs side of the guide roller device 2 of FIGS. 1 and 3, a horizontal tube or rod-shaped tension roller inserted in the hollow tubular tension roller 3r inserted in the endless belt-shaped screen 1 is provided. A support member and an elevating device for holding the left end portion of the tension roller support member so as to be elevatable are provided. The right end side of the tension roller support member is a free end that is not supported by anything.

When the endless belt-shaped screen 1 is inserted into or removed from the guide roller body 2g, the horizontal tension roller support member inserted in the tension roller 3r is raised by the elevating device,
The upper surface of the tension roller support member supports the top of the inner surface of the tension roller 3r, and the tension roller 3r is sufficiently raised from the position when the tension roller 3r is placed on the inner surface of the bottom of the endless belt-shaped screen 1 so that the endless belt-shaped screen 1 is Make sure it does not interfere with the insertion / removal. When it is necessary to apply tension to the entire surface of the endless strip-shaped screen 1 for cleaning, the horizontal tension roller support member inserted into the tension roller 3r by the elevating device is used as the tension roller 3r. It is placed on the inner surface of the bottom of the endless belt-shaped screen 1 held by 2 g, and is lowered to a position where it does not come into contact with the inner surface of the tension roller 3r so as not to prevent the endless belt-shaped screen 1 from being driven and rotated. According to the embodiment of the tension applying means 3 configured as described above, the endless band-shaped screen
There is an effect that it is not necessary to manually insert the tension roller 3r into the inside of 1 and to pull out the tension roller 3r from inside of the endless belt-shaped screen 1.

Next, an embodiment of the device of the present invention according to claim 5 will be described below with reference to FIG. In addition to the configuration of the embodiment according to claim 4 described with reference to FIGS. 3 and 4, the present embodiment has a forward / reverse rotation type for moving the moving means 5 of the high-pressure water injection means 4 at a normal speed. Motor 5
The rotation control device 20a for the M ₂ and the rotation control device 20b for the forward / reverse rotation type motor 5M ₃ for high speed movement are provided between the high-pressure water jetting means 4 and the endless strip-shaped screen 1. A width direction relative movement control device for controlling relative movement in the width direction and a guide roller rotation control device 21 for controlling rotation of the endless belt-shaped screen 1 are provided, and the rotation control devices 20a and 20b are provided. By controlling the widthwise relative movement control device and the guide roller rotation control device 21, the widthwise relative movement of the high-pressure water jetting means 4 with respect to the endless strip-shaped screen 1 and the rotation of the endless strip-shaped screen 1 are controlled. The synchronization control device 22 for synchronizing is basically provided.

The above embodiment has the following specific configuration. That is, the rotation detector 2PG that detects the rotation of the rotation drive motor 2M of the guide roller body 2g and sends a signal to the (guide roller) rotation control device 21, and the left side of the moving means 5 of the high-pressure water jetting means 4. A rotation detector 5PG ₂ that detects the rotation of the sprocket wheel 5 swl and sends a signal to the rotation control device 20 a, and a rotation detector 5 PG ₃ that detects the rotation of the right sprocket wheel 5 swr and sends a signal to the rotation control device 20 b _3. And are attached. Further, the guide roller rotation control device 21, the rotation control device 20a, the rotation control device 2
0b of each of the rotation detector 2PG, the rotation detector 5PG ₂ , and the rotation detector 5PG ₃ , and the outer diameter of the guide roller main body 2gn.
From the effective outer diameter of the left sprocket wheel 5 swl and the effective outer diameter of the right sprocket wheel 5 swr, respectively, the rotation circumference of the guide roller body 2 g and the high pressure water jetting means 4 rotationally driven by the left sprocket wheel 5 swl. Of the moving means 5 of the moving means 5 and the moving distance of the moving carriage 5ca of the moving means 5 of the high-pressure water jetting means 4 which is rotationally driven by the right sprocket wheel 5swr, and is provided with calculating means 21c, 20ac, 20bc. There is.

Further, a central operation panel 23 of an endless band-shaped screen cleaning device is connected to the synchronous control device 22, and the central operation panel 23 is the same as the fourth embodiment described with reference to FIGS. 3 and 4. In the description of the operation of the embodiment of the present invention, the three types of operation patterns described with reference to FIG. 5, that is, the selection means for the patterns A to C, the rotation / stop of the endless belt-shaped screen 1 in each operation pattern. And parameter setting / input means required for synchronous control for synchronizing the movement / stop of the moving carriage 5ca of the moving means 5 of the high-pressure water injection means 4.

The operation of this embodiment configured as described above will be described below.

(1) Select one of the synchronous operation patterns A to C on the central operation panel 23.

(2) The control parameters common to the three types of synchronous operation patterns and the necessary parameters are set according to the selected synchronous operation pattern. "Common" Perimeter L _eb (mm) of endless belt-shaped screen 1 _Total width W _eb (mm) of endless belt-shaped screen a) In case of pattern A When high-pressure water jetting means 4 is stopped at the right end or left end of endless belt-shaped screen 1. Of the perimeter of the endless belt-shaped screen 1 in consideration of the nozzle movement locus width Wtn (mm) L _W
(mm / time) b) In the case of pattern B The movement width (continuous movement speed) V _l (continuous movement speed) V _l (per continuous rotation speed) of the endless belt-shaped screen in consideration of the nozzle movement locus width Wtn (mm) mm / mm) c) In the case of pattern C, when the endless belt-shaped screen 1 is rotated once and stopped,
The movable carriage 5ca in consideration of the nozzle movement locus width Wtn (mm)
Movement width per time Wca (mm / time)

(3) Synchronous operation is started. The following synchronization control is performed according to the synchronous operation pattern.

A) In the case of pattern A From the standby position (original position) of the moving carriage 5ca, the right sprocket wheel 5swr is normally driven by the forward / reverse rotation type motor 5M ₃ for high speed movement shown by the arrow in FIG. The high speed movement to the right side is started, and once the injection start limit switch LS2 is actuated, it is temporarily stopped. The high-pressure water jetting means 4 starts high-pressure water jetting, and when the discharge pressure of the high-pressure water reaches a set value, the high-pressure water jetting means 4 is lowered to a predetermined position, and the rotation of the endless strip-shaped screen 1 is stopped, and the normal speed is reached. Forward sprocket wheel 5sw with forward / reverse rotation motor 5M ₂ for movement
The l is driven in the forward direction to start moving at the set speed to the right as shown by the arrow in FIG. When the pre-selected limit switch of the narrow screen injection stop limit switch LS3 and the wide screen injection stop limit switch LS4 is actuated, the carriage 5ca stops. Alternatively, the a rotation signal of the rotation detector 5PG ₂ left sprocket wheel 5Swl, from the effective diameter Dswl preset left sprocket wheel 5Swl, movable cart 5ca of the rotation control device 20a in a built-in operation means 20ac is computed The movement distance w _ca after the injection start limit switch LS2 of the
The carriage 5ca may be stopped when the entire width W _eb (mm) is matched. While continuing to eject the high-pressure water by the high-pressure water ejecting means 4, the endless belt-shaped screen 1 is rotated, the rotation signal from the rotation detector 2PG of the guide roller body 2g, and the preset outer diameter of the guide roller body 2g. D _GR and the calculating means 2 built in the guide roller rotation control device 21.
When the rotation peripheral length lw of the endless belt-shaped screen 1 calculated by 1c matches the rotation peripheral length L _W (mm / time) of the endless belt-shaped screen 1 in consideration of the nozzle movement locus width Wtn (mm). Then, the rotation of the endless belt-shaped screen 1 is stopped. When the movable carriage 5ca is moved to the left direction shown by the arrow E in FIG. 3 at the set speed and the injection start limit switch LS2 is actuated, the movable carriage 5ca is stopped. Alternatively, the rotation detector 5PG ₂ of the left sprocket wheel 5swl
From the rotation signal of the left sprocket wheel 5swl and the preset effective diameter Dswl of the left sprocket wheel 5swl.
Moving distance w _ca to the left of the cart 5ca arithmetic means 20ac built in 0a is operation, the carriage 5ca may be stopped when a match the endless belt screen 1 of total width W _eb (mm) . (Same as above). By repeating the above steps, the cumulative value Σlw of the rotation peripheral length lw of the endless belt-shaped screen 1 per time is the peripheral length L _eb (mm) of the endless belt-shaped screen 1 of the endless belt-shaped screen 1.
If the value coincides with, the cleaning of the endless belt-shaped screen 1 is completed.

B) In the case of pattern B From the standby position (original position) of the moving carriage 5ca, the right sprocket wheel 5swr is normally driven by the forward / reverse rotation type motor 5M ₃ for high speed movement as shown by the arrow in FIG. The high speed movement to the right side is started, and the injection start limit switch LS2
When is activated, stop it. The high-pressure water injection means 4 starts high-pressure water injection, and when the high-pressure water discharge pressure reaches a set value, the high-pressure water injection means 4 is lowered to a predetermined position. The rotation of the endless belt-shaped screen 1 is started, and at the same time, the moving carriage 5ca
Is the moving width (continuous moving speed) V _l (mm / mm) of the moving carriage 5ca in consideration of the nozzle moving locus width Wtn (mm) per one rotation (one circumference) of the endless belt-shaped screen to the right. Continue to move. When the movable carriage 5ca actuates the preselected limit switch of the narrow screen spray stop limit switch LS3 and the wide screen spray stop limit switch LS4, the cleaning of the endless strip screen 1 is completed. Alternatively, the left sprocket wheel 5sw
From the rotation signal of the rotation detector 5PG ₂ of 1 and the preset effective diameter Dswl of the left sprocket wheel 5swl, the injection start limit switch of the movable carriage 5ca calculated by the calculation means 20ac built in the rotation control device 20a. The cleaning of the endless belt-shaped screen 1 may be completed when the moving distance w _ca after operating the LS2 matches the entire width W _eb (mm) of the endless belt-shaped screen 1.

C) In the case of pattern C From the standby position (original position) of the moving carriage 5ca, the right sprocket wheel 5swr is normally driven by the forward / reverse rotation type motor 5M ₃ for high speed movement as shown by the arrow in FIG. When high-speed movement starts in the right direction and the injection start limit switch LS2 is activated, the injection start limit switch LS2 is temporarily stopped. High-pressure water injection means 4 starts high-pressure water injection, and when the discharge pressure of high-pressure water reaches a set value, high-pressure water injection means 4 is lowered to a predetermined position. The rotation of the endless strip screen 1 is started. From the rotation signal from the rotation detector 2PG of the guide roller body 2g and the preset outer diameter D _GR of the guide roller body 2g,
The rotation peripheral length l of the endless belt-shaped screen 1 calculated by the calculation means 21c incorporated in the guide roller rotation control device 21.
When w matches the peripheral length L _eb (mm) of the endless belt-shaped screen 1, the rotation of the endless belt-shaped screen 1 is stopped. While continuing the high pressure water injection from the high pressure water injection means 4,
The movable carrier 5ca is moved to the right at a predetermined speed, a rotation signal of the rotation detector 5PG ₂ of the left side sprocket wheel 5Swl, preset left sprocket wheel 5sw
The moving distance w _ca to the right side of the moving carriage 5ca calculated by the calculating means 20ac built in the rotation control device 20a from the effective diameter Dswl of the l is the moving carriage considering the nozzle movement trajectory width Wtn (mm). Moving width per 5ca Wca (mm /
When the time) is met, the moving carriage 5ca is stopped again. Repeat the above. The movable carriage 5ca completes the cleaning of the endless strip-shaped screen 1 when the pre-selected limit switch of the narrow clean injection stop limit switch LS3 and the wide screen spray stop limit switch LS4 is actuated. Alternatively, the left sprocket wheel 5sw
and l rotation signal of the rotation detector 5PG ₂ of the effective diameter Dswl preset left sprocket wheel 5Swl, the rotation control device 20b in the built-in computing unit 20bc is travel distance w _ca of the cart 5ca for computing , Cumulative value Σw since the injection start limit switch LS2 is actuated
The cleaning of the endless belt-shaped screen 1 may be completed when _ca matches the entire width W _eb (mm) of the endless belt-shaped screen 1.

According to the embodiment of the present invention according to claim 5 as described above, there is an effect that the entire surface of the endless belt-shaped screen 1 is uniformly washed and the automatic operation becomes possible.

As another embodiment of the endless belt-shaped screen cleaning device of the present invention according to claim 4, the two rotary jet guns 4rj are fixedly arranged and the inner surface is held by the guide roller main body 2g. In order to clean the entire endless belt-shaped screen 1 in the width direction, the guide roller device 2 is mounted, and a self-propelled carriage that reciprocates in the width direction of the endless belt-shaped screen 1 is provided. Also in this case, the high-pressure water jetting means is further provided with a traveling control device for the self-propelled carriage and a guide roller rotation control device, and controls the traveling control device for the self-propelled carriage and the guide roller rotation control device. It is also possible to provide the same relative control as described above by providing a synchronous control device for synchronizing the relative movement of the endless belt-shaped screen 1 with the rotation of the endless belt-shaped screen 1. Noh.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and it is said that other embodiments are included within the scope of the gist of the configuration. There is no end. For example, although the above-described embodiments have been mainly described with respect to an expensive lacquer screen or the like made of nickel mesh or the like, a flexible material used for solid-liquid separation (filtration) or solid-gas separation (dust collection, etc.). It can also be applied to the reproduction of a cylindrical (endless belt) filter screen made of mesh.

[0068]

According to the present invention, when cleaning and removing strong deposits such as resin films such as expensive lacquer screens used for rotary screen printing, rotary screen printing, etc., deterioration of working environment, environmental pollution, An expensive lacquer used for rotary screen dyeing, rotary screen printing, etc., which does not cause damage to the metal mesh, has low equipment costs and operating costs, has high productivity (working efficiency), is easy to treat wastewater, etc. It is possible to easily reproduce an endless band-shaped screen such as a screen. Furthermore, according to the present invention, solid-liquid separation (filtration) and solid-gas separation (dust collection etc.)
Recycling of a cylindrical (endless belt-shaped) filter screen or the like made of a flexible mesh used for can be easily performed as described above.

[Brief description of drawings]

FIG. 1 is a conceptual diagram showing an overall configuration of an embodiment of the present invention according to claim 2.

FIG. 2 is a side view showing a configuration of (a) of a rotary jet gun as one embodiment of the high-pressure water injection means of the embodiment of the present invention according to claim 3, (b) a bottom surface showing a movement locus of a nozzle. It is a figure.

FIG. 3 is a conceptual diagram showing an overall configuration of an embodiment of the present invention according to claims 4 and 5.

4 is a sectional view taken along the line AA of FIG. 1 and a sectional view taken along the line BB of FIG.

5 shows relative movement loci of the nozzles of the operation patterns A to C of the embodiment of the present invention according to claims 4 and 5 with respect to the surface of the endless band-shaped screen, and (a-1) to
(C-1) is a development view and (a-2) to (c-2) are perspective views.

[Explanation of symbols]

1 Endless band screen 2 Guide roller device 2g Guide roller main body 2M Rotation drive motor 2PG Guide roller main body rotation detector 2pc Umbrella type center 2ms Movable bearing stand 3r Tension roller 4 High pressure water jetting means 4rj Rotary jet gun 4pu Ultra high pressure pump unit 5 High-pressure water injection means moving means 5ca Moving carriage 5M ₂ Normal speed (speed change) moving forward / reverse rotary motor 5M ₃ High speed moving forward / reverse rotary motor 5swl Left sprocket wheel 5swr Right sprocket wheel 5PG ₂ Left sprocket wheel rotation detector 5PG ₃ right sprocket wheel rotation detector 15 cleaning chamber 16 exhaust fan 17 mist removing apparatus 20a left sprocket wheel rotation controller 20b right sprocket wheel rotation controller 21c guide roller control device 22 synchronously control unit 23 central control panel 34 Ruchi nozzle head 34n nozzles LS1 truck waiting (original) position stop limit switch LS2 injection stop limit switch for the injection start limit switch LS3 narrow for wide screen injection stop limit switch LS4 wide screen

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Saburo Kuroda Nishibashijima-machi, Nishiichi Kasugai-gun, Aichi Prefecture No. 1 Nitta No. 2 Tokai Senko Co., Ltd. (72) Inventor Takahiro Ito Nishibashijima-cho, Nishikasui-gun, Aichi Nitta No. 1 No. 2 Tokai Senko Co., Ltd. (56) References JP-A-2-293150 (JP, A) JP-A-7-1721 (JP, A) Actual Kaihei 5-74840 (JP, U) ) (58) Fields surveyed (Int.Cl. ⁷ , DB name) B41F 35/00 B08B 3/02 B08B 11/02 B41F 15/12

Claims (5)

(57) [Claims] 1. A guide roller device for rotating an endless belt-shaped screen while holding it from the inner surface, and a guide roller device mounted on the inner surface of the bottom of the endless belt-shaped screen to rotate the endless belt-shaped screen while tensioning the endless belt-shaped screen. An endless belt-shaped screen comprising: a tension applying means having a tension roller which is driven to rotate, and a high-pressure water ejecting means for injecting high-pressure water onto a surface of a contact portion of the endless belt-shaped screen with an outer peripheral surface of the guide roller. Cleaning equipment. 2. The high-pressure water jetting means comprises a multi-nozzle head, and drive means for rotating, swiveling or swinging the multi-nozzle head. Endless strip screen cleaning device. 3. The method according to claim 1, further comprising a relative moving means in the width direction of the endless strip-shaped screen between the high-pressure water jetting means and the endless strip-shaped screen. Endless strip screen cleaning device. 4. A width direction relative movement control device for controlling relative movement in the width direction of the endless strip screen between the high-pressure water jetting means and the endless strip screen, and rotation of the endless strip screen. A guide roller rotation control device for controlling the width direction relative movement control device and the guide roller rotation control device to control the width direction relative movement of the high-pressure water jetting means with respect to the endless strip screen. The cleaning device for an endless strip-shaped screen according to claim 3, further comprising a synchronization control device for synchronizing the rotation of the endless strip-shaped screen. 5. The injection pressure of the high-pressure water injection means is 100.
To 250 MPa, which is characterized by being set in the range
The endless belt shape according to any one of claims 1 to 4.
Screen cleaning device .