KR101049565B1 - Cleaning Liquid Injector - Google Patents

Abstract

The present invention relates to a washing liquid spraying apparatus, comprising a housing in which a washing liquid inflow passage through which washing liquid is introduced, and a plurality of spray nozzles are rotatably mounted along the circumferential direction, so that the discharge passage of the spray nozzle is rotated by the washing liquid inflow passage. The nozzle unit selectively aligned with the nozzle unit, the rotary drive unit for rotating the nozzle unit, and the nozzle to be spaced apart from the spray nozzle in the housing so as to inject the backwashing fluid toward the discharge port of the spray nozzle at the position where the cleaning liquid is blocked. A backwash fluid supply unit is provided. According to the washing liquid spraying device, the rotating spray nozzle is continuously aligned with the washing liquid inflow passage to which the washing liquid is supplied, while the washing liquid can be continuously sprayed, but after the washing liquid is sprayed, the washing nozzle is also backwashed through the outlet of the spray nozzle. It provides an advantage of suppressing clogging of the injection nozzle.

Injection nozzle, backwash, high pressure air

Description

Cleaning liquid injection apparatus

The present invention relates to a washing liquid spraying apparatus, and more particularly, to a washing liquid spraying apparatus capable of backwashing the outlet of the spraying nozzle while selectively spraying the washing liquid through a plurality of spraying nozzles.

In general, a rolled steel sheet is rolled to a certain thickness using a rolling mill, and is produced while supplying rolling oil for the purpose of lubrication of the roller and the steel sheet during rolling.

However, the rolled steel sheet manufactured through such a process is attached to the rolling oil and fine iron powder, which may contaminate the post-treatment process facility when put into the post-treatment process for plating or other post-treatment on the rolled steel sheet and damage to the product. It can be carried out after the steel sheet washing process.

Conventional cleaning method is to install a roller on a position that can be immersed in the washing water in the washing tank containing the washing water, for example alkaline water to pass the rolled steel sheet, or spray the washing water in the washing tank through the nozzle to the rolling steel sheet passing between the rollers Use the method.

However, in the case of spraying the washing water by the nozzle, as the iron and oil concentration flowing into the washing water in the washing tank increases with the progress of the washing process, the viscosity increases, and thus clogging of the nozzle occurs, and as a result, normal washing is not performed. A problem occurs.

In particular, when the cleaning process is stopped due to clogging of the nozzle, the iron plate part passing through the cleaning process may be corroded or discolored on the surface if the cleaning is not performed by normal operation within a short time, thereby causing a defect in the product.

The present invention has been made to improve the above problems, to provide a cleaning liquid injector that can prevent the clogging of the injection nozzle by the cleaning liquid while continuing to spray the cleaning liquid even during the backwash process of the spray nozzle. There is a purpose.

In order to achieve the above object, the cleaning solution injector according to the present invention includes a housing having a cleaning solution inlet flow path through which the cleaning solution is introduced; A nozzle unit in which a plurality of spray nozzles are rotatably mounted in the circumferential direction so that the discharge passage of the spray nozzle is selectively aligned with the washing liquid inflow passage by rotation; A rotation driving unit for rotating the nozzle unit; And a backwashing fluid supply part installed in the housing so as to be spaced apart from the jetting nozzle so as to inject the backwashing fluid toward the outlet of the jetting nozzle in the position at which the inflow of the washing liquid is blocked.

Preferably, the nozzle unit is a rotor which is formed to be rotatable in the housing and provided with a plurality of tooth-shaped interference pieces on the outer circumferential surface so as to be engaged with the first rotation direction along the circumferential direction; Rotating body portion coupled to the rotor and the injection nozzle is mounted, respectively, wherein the rotary drive portion is retracted by the air supplied through the forward air supply pipe and the reverse air supply pipe provided to be spaced apart from each other in the housing And a retraction cylinder for interfering the interference pieces of the rotor.

The retraction cylinder further includes a retraction body that retreats along a direction orthogonal to the longitudinal direction of the rotor in the retraction space provided in the housing; An actuating piece mounted on the advancing body so as to be lowered in a direction interfering with the interfering piece; It is preferable to include an elastic member for elastically biasing the working piece so that the working piece can be elastically biased in a direction in close contact with the outer circumferential surface of the rotor.

More preferably, in the housing opposite to the washing liquid inflow oil, the washing liquid of the injection nozzle is stopped when the rotor is rotated by a unit rotation angle when the rotor is rotated by the rotation of the operating piece due to the movement of the retracting cylinder. And an elastic stopper elastically retracted to the inlet.

The elastic stopper has a spherical ball formed to be introduced into the inlet of the injection nozzle; And a spring mounted in the receiving groove formed in the housing to allow the spherical ball to enter and exit the inlet of the injection nozzle and to elastically bias the spherical ball in the direction of the inlet of the injection nozzle.

According to the washing liquid spraying apparatus according to the present invention, while the rotating spray nozzle is continuously aligned with the washing liquid inlet flow path to which the washing liquid is supplied, the washing liquid can be continuously sprayed, but after the washing liquid is sprayed, the process of back washing through the outlet of the spray nozzle is also performed. By being performed together, it provides an advantage of suppressing the clogging of the injection nozzle.

Hereinafter, the washing liquid spraying apparatus according to a preferred embodiment of the present invention with reference to the accompanying drawings will be described in more detail.

1 is a perspective view showing a washing liquid injector according to the present invention, Figure 2 is a perspective view showing the back of the washing liquid injector of Figure 1 can be seen, Figure 3 is an exploded perspective view of the washing liquid injector of FIG.

1 to 3, the cleaning liquid injector 100 includes a housing 110, a nozzle unit 130, a rotation driving unit, and a backwash fluid supply unit 170.

The housing 110 is provided with a forward and backward cylinder 150 and an inner space 112 in which the rotor 135 can be accommodated.

In addition, the housing 110 has a cleaning solution inflow passage 115 is formed so that the cleaning solution is introduced into the interior through the inlet 114.

The end 115a of the washing liquid inflow passage 115 formed in the housing 110 is a discharge passage formed at equal intervals on the rotating body 131 of the nozzle unit 130 to correspond to each injection nozzle 132 ( It is formed in the position corresponding to the rotational track of 133.

The housing 110 is provided with a forward air supply pipe 116 and a reverse air supply pipe 117 so that the forward and backward cylinder 150, which will be described later, can be moved back and forth by air applied as a fluid.

The nozzle unit 130 is mounted to the housing 110 such that the plurality of injection nozzles 132 are rotatable along the circumferential direction, so that the discharge passage 133 of the injection nozzle 132 is rotated to the washing liquid inflow passage 115 by rotation. It can be aligned selectively.

The nozzle unit 130 includes a rotor 135, a rotating body 131, and an injection nozzle 132.

The rotor 135 is formed in a cylindrical shape so as to be rotated in the housing 110 and protrudes in an inclined shape along the rotational direction from the outer circumferential surface so as to be engaged with the first rotational direction along the circumferential direction on the outer circumferential surface. A plurality of toothed interference pieces 136 is provided.

The rotating body 131 is coupled by the rotor 135 and the screw 137 which is a coupling member, and six injection nozzles 132 are mounted on the outer circumferential surface at equal intervals along the radial direction.

On the inner surface of the rotary body 131 opposite to the housing 110, the discharge passage is in communication with the respective injection nozzles 132 and formed independently of each other so as to be sequentially aligned with the washing liquid inflow passage 115 by rotation. 133 is formed.

The number of the discharge passage 133 and the injection nozzle 132 formed on the rotating body 131 may be applied differently from the illustrated example.

Reference numeral 138 denotes a sleeve that supports the rotor 135 to rotate smoothly.

The rotation driving unit is capable of rotating the nozzle unit 130 by interfering with the interference piece 136 of the nozzle unit 130 and will be described with reference to FIG. 4.

The rotary drive unit interferes with the interference piece 136 of the rotor 135 while being advanced and retracted by air, which is selectively supplied through the forward air supply pipe 116 and the reverse air supply pipe 117, which are provided to be spaced apart from each other in the housing 110. Advance cylinder 150 to rotate the nozzle unit 130 was applied.

The retraction cylinder 150 includes a retraction body 151, an operation piece 155, and a spring 157.

The retreat body 151 retreats in the retreat space 112a provided in the housing 110.

The retreat body 151 has a stepped structure in which the outer diameter of the distal end portion 151a is larger than the outer diameter of the rear end portion 151b so as to limit the movement distance at the time of retreat to the left side, and the retreat space 112a of the housing. In addition, the front end portion 151a has a stepped space structure so that the locking action can be performed.

The operation piece 155 is mounted to be able to elastically enter and exit the body body 151 to interfere with the interference piece 136.

The operation piece 155 is installed to be inputted and lowered through the through hole 152 formed in the retreat body 151 and is elastic in the receiving groove 155a which is opened upward in the center of the operation piece 155. The spring 157 applied to the member is inserted.

Reference numeral 159 is a restraining piece which is coupled to the retreating body 151 to close the upper portion of the through hole 152 of the retreating body 151 and restrains the spring 157 into the receiving groove 155a.

Accordingly, the spring 157 is constrained by the restraining piece 159 to protrude downward through the through hole 152 that opens the operating piece 155 to the lower portion of the retreating body 151, that is, the rotor 135. Elastic bias in the direction in close contact with the outer peripheral surface.

Reference numeral 181 denotes a cap that closes both sides of the advancing space 112a of the housing 110, respectively.

Looking at the operation by the rotary drive unit, the retreat body 151 protrudes to the lower retreat body while moving to the left when air flows through the flow path leading from the forward air supply pipe 116 to the tip of the retreat space (112a). The operated piece 155 interferes with the locking piece 136 to rotate.

In addition, when air flows in from the reverse air supply pipe 117 to the rear end of the retreat space 112a, the retreat body 151 is moved to the right. In this process, the working piece is retracted upwards as it enters the through-hole 152 of the advancing body 151 by interfering with the inclined surface of the locking piece 135, and the protrusions of the adjacent locking pieces 135 along the clockwise direction ( 136a) the interference is released again while seated forward and protrudes downward from the retreating body 151 by the restoring force of the spring 157.

On the other hand, the elastic stopper 160 is installed in the housing 110 opposite to the end 115a of the washing liquid inflow passage 115, and the rotor 135 by the interference of the operating piece 155 by the movement of the advance and exit cylinder 150. ) Rotates by the unit rotation angle when the rotation of the rotating body 131 is stopped. In addition, the elastic stopper 160 is caught when the moving body 151 is retracted by interference along the inclined surface of the locking piece 136 when the moving body 151 moves by the air supply through the reverse air supply pipe 117. The piece 136 is installed to be elastically retracted to the washing liquid inlet 133 of the injection nozzle 132 to provide a restraining force that does not rotate.

The elastic stopper 160 is made up of a spherical ball 161 and a spring 163.

The spherical ball 161 is accommodated in the receiving groove 119 provided in the housing 110 is installed to be able to enter and exit the inlet 133 of the injection nozzle 132.

The spring 163 is mounted in the receiving groove 119 formed in the housing 110 so that the spherical ball 161 can enter and exit the inlet 133 of the spray nozzle 132 and spray the spherical ball 161 into the spray nozzle ( Elastic bias in the direction of the inlet 133 of the 132.

Reference numeral 183 is a packing member.

The backwashing fluid supply unit 170 is spaced apart from the injection nozzle 132 in the housing 110 to inject the backwashing fluid toward the outlet 132a of the injection nozzle 132 at the position where the inflow of the washing liquid is blocked. It is installed.

The body 171 of the backwashing fluid supply unit 170 receives the high pressure air applied as the fluid through the inlet 172 and injects toward the outlet 132a of the spray nozzle 132 arrayed oppositely through the inlet 174. I can do it.

Preferably, the rotor 134 is rotated to spray the washing liquid, and then the body 171 may be installed to backwash the outlet 132a of the spray nozzle 132 loaded to the next position.

The cleaning liquid injector 100 is a high pressure air supplying the high-pressure air to the operation air supply 210 and the backwash fluid supply unit 170 for selectively supplying air to the forward air supply pipe 116 and the backward air supply pipe 117. Air supply 220, the washing liquid supply unit 230 for supplying the washing liquid to the washing liquid inlet 114 and the operating air supply 210, the controller 240 for controlling the driving of the high-pressure air supply 220 and the washing liquid supply 230 Is connected to

The controller 240 controls the operation air supply 210 so that air is alternately supplied to the forward air supply pipe 116 and the reverse air supply pipe 117, and the rotor 135 is rotated by the unit rotation angle. The high pressure air supplier 220 is controlled such that the high pressure air is injected from the air supply 220.

The washing liquid supplier 230 may be configured to maintain the operating on state in which the washing liquid may be pressurized without being controlled by the controller 240.

1 is a perspective view showing a washing liquid injector according to the present invention,

FIG. 2 is a perspective view illustrating the rear surface of the cleaning solution injector of FIG. 1.

Figure 3 is an exploded perspective view of the cleaning solution injector of Figure 1,

4 is a cross-sectional view of the cleaning liquid injector of FIG. 1 for explaining the operation relationship between the retreat slider and the rotor of FIG.

Claims (5)

A housing having a washing liquid inflow passage through which the washing liquid is introduced; A nozzle unit in which a plurality of spray nozzles are rotatably mounted in the circumferential direction so that the discharge passage of the spray nozzle is selectively aligned with the washing liquid inflow passage by rotation; A rotation driving unit for rotating the nozzle unit; And a backwashing fluid supply unit disposed in the housing so as to be spaced apart from the jetting nozzle so as to inject the backwashing fluid toward the outlet of the jetting nozzle in the position at which the inflow of the cleaning fluid is blocked. . The method of claim 1, wherein the nozzle unit A rotor formed to be rotatable in the housing, the rotor having a plurality of tooth-shaped interference pieces provided on the outer circumferential surface thereof so as to be engaged with the first rotation direction along the circumferential direction; Rotating body portion coupled to the rotor and the injection nozzle is mounted, respectively; The rotary drive unit And a forward and backward air supply pipe provided in the housing and spaced apart from each other, and a retracting cylinder for interfering with the interference pieces of the rotor while being advanced and retracted by the air supplied through the reverse air supply pipe, respectively. The method of claim 2, wherein the retraction cylinder is A retreat body which retreats along a direction orthogonal to the longitudinal direction of the rotor in a retreat space provided in the housing; An actuating piece mounted on the advancing body so as to be lowered in a direction interfering with the interfering piece; And an elastic member for elastically biasing the working piece so that the working piece elastically biases in a direction in close contact with the outer circumferential surface of the rotor. The injection nozzle of claim 3, wherein the rotor body is rotated by a unit rotation angle when the rotor is rotated by the interference of the working piece due to the movement of the retracting cylinder. Washing liquid injector further comprising; an elastic stopper elastically retracted into the washing liquid inlet of the. The method of claim 4, wherein the elastic stopper A spherical ball formed to be drawn into an inlet of the injection nozzle; And a spring mounted in the receiving groove formed in the housing to allow the spherical ball to enter and exit the inlet of the spray nozzle, and to spring the spherical ball elastically toward the inlet of the spray nozzle.

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