JP2016043313A - Washing equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a washing equipment enabled to wash efficiently as a whole by reducing the difference between a portion where the washing operation of a washing liquid injected from a plurality of nozzles is intensified and a portion where the washing operation is weakened, and to make the washing equipment compact.SOLUTION: A washing equipment comprises: a plurality of nozzles 11 arranged at an equal interval for injecting a washing liquid; and fluctuation means 13 for moving the plurality of nozzles 11 at a moving distance of 1/2 of the interval of the adjoining nozzles 11 relative to an object to be washed.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a cleaning apparatus, and more particularly to a cleaning apparatus that performs cleaning by spraying a cleaning liquid from a nozzle onto an object to be cleaned.

  When cleaning is performed by ejecting the cleaning liquid from the nozzle, the momentum of the spray liquid is abruptly reduced as the position moves away from the position facing the nozzle. For this reason, it is often the case that a plurality of nozzles are arranged at regular intervals for cleaning. However, in the middle portion between the nozzle pitches, the cleaning liquids from adjacent nozzles collide with each other, resulting in stagnation and a phenomenon in which sufficient cleaning cannot be performed. For this reason, there is a device in which the nozzle or the object to be cleaned is swung so as not to cause stagnation at the same position (for example, see Patent Document 1).

  Patent Document 1 discloses a cleaning nozzle group that removes a coating liquid adhering to a roller in a coating apparatus that applies a coating liquid onto a workpiece by using a slit nozzle. The cleaning nozzle group is disposed so as to face the roller, and a plurality of cleaning nozzles are provided at equal intervals on the swinging portion. Each cleaning nozzle sprays the cleaning liquid onto the roller while swinging in the direction along the axial direction of the roller at the interval between adjacent cleaning nozzles by the swing of the swinging portion, and the coating liquid adhered to the roller. Remove.

JP 2010-141186 A

  In Patent Document 1, since the plurality of cleaning nozzles are swung at a movement distance equal to the interval between adjacent cleaning nozzles, the location of the strong liquid flow from the cleaning nozzle and the stagnation location are respectively constant locations. , The cleaning action of the portion that becomes the stagnation portion is weakened.

  The present invention has been made in view of the above problems, and its purpose is to reduce the difference between a location where the cleaning action of the cleaning liquid sprayed from a plurality of nozzles is strong and a location where it becomes weak, and as a whole An object of the present invention is to provide a cleaning device that can perform cleaning efficiently and that can be made compact.

  A cleaning apparatus that solves the above-described problem is a plurality of nozzles that are arranged at equal intervals and spray a cleaning liquid, and the plurality of nozzles are moved with respect to an object to be cleaned at a moving distance that is ½ of the interval between adjacent nozzles. Rocking means for relative movement. According to this configuration, since the plurality of nozzles move relative to the object to be cleaned at a moving distance of ½ of the interval between the adjacent nozzles and spray the cleaning liquid, the cleaning action of the cleaning liquid sprayed from each nozzle is improved. The difference between the stronger portion and the weakened portion is smaller than when each nozzle moves relative to the object to be cleaned by the same movement distance as the interval between adjacent nozzles. Further, the relative movement distance of the plurality of nozzles with respect to the object to be cleaned is reduced. Therefore, the difference between the location where the cleaning action of the cleaning liquid sprayed from the plurality of nozzles becomes stronger and the location where the cleaning action becomes weaker can be reduced, the overall cleaning can be performed efficiently, and the cleaning device can be made compact. .

  The plurality of nozzles are preferably relatively moved in two directions, a direction parallel to the arrangement direction and a direction orthogonal to the arrangement direction. Since the cleaning liquid sprayed from the nozzle hits the object to be cleaned and spreads concentrically, it can be cleaned more uniformly and efficiently by moving in two orthogonal directions. The two orthogonal directions are not limited to the nozzle arrangement direction and the direction orthogonal to the nozzle arrangement direction, but are orthogonal to the nozzle arrangement direction as compared with the configuration in which the nozzle is relatively moved in an oblique direction with respect to the nozzle arrangement direction. The configuration is simpler when moving in the direction.

  It is preferable that the plurality of nozzles eject the cleaning liquid from top to bottom. The spray liquid sprayed from the nozzle receives a downward force due to the action of gravity. Therefore, when the cleaning liquid is sprayed from the top to the bottom, the cleaning liquid strongly hits the object to be cleaned by the force of gravity, for example, compared to the case where the cleaning liquid is sprayed with the same spray force in the horizontal direction, Detergency with the cleaning liquid increases.

  According to the present invention, the difference between the location where the cleaning action of the cleaning liquid sprayed from a plurality of nozzles becomes stronger and the location where the cleaning action becomes weaker can be reduced, the overall cleaning can be efficiently performed, and the cleaning device can be made compact. Can be planned.

(A) is a partially broken schematic front view showing the cleaning device of the first embodiment, and (b) is a schematic plan view. The schematic diagram which shows an effect | action. The partially broken schematic plan view which shows the washing | cleaning apparatus of 2nd Embodiment. The schematic plan view of another embodiment.

(First embodiment)
A first embodiment embodying the present invention will be described below with reference to FIGS.
As shown in FIGS. 1 (a) and 1 (b), the cleaning apparatus includes a cleaning liquid ejecting section 12 provided with a plurality of nozzles 11 arranged at equal intervals and ejecting the cleaning liquid, and a nozzle adjacent to the cleaning liquid ejecting section 12. And a swinging means 13 for reciprocating, that is, swinging at a movement distance of ½ of the interval of 11.

  As shown in FIG. 1B, the nozzles 11 are provided in two rows along the longitudinal direction of the cleaning liquid ejecting unit 12, and the interval between adjacent nozzles 11 in the same column and the interval between adjacent nozzles 11 in different columns. Are provided in the same way.

  The cleaning liquid injection unit 12 includes a flow path for distributing the cleaning liquid supplied from a cleaning liquid storage unit (not shown) via the flexible pipe 14 to each nozzle 11, and the cleaning liquid is simultaneously injected from each nozzle 11. .

  The swinging means 13 includes a pair of left and right support bases 15 and 16, and each of the support bases 15 and 16 includes a pair of guide grooves 15 a, 15 b, 16 a and 16 b extending in parallel with the longitudinal direction of the cleaning liquid ejecting unit 12, Guide grooves 15c and 16c extending in a direction orthogonal to the longitudinal direction of the cleaning liquid ejecting portion 12 are formed. One end of the guide groove 15a is continuous with one end of the guide groove 15c, and one end of the guide groove 15b is continuous with the longitudinal center of the guide groove 15c. One end of the guide groove 16a is continuous with one end of the guide groove 16c, and one end of the guide groove 16b is continuous with the longitudinal center of the guide groove 16c.

  Two pairs of left and right guide support portions 17a, 17b, 18a, and 18b project from the lower surface of the cleaning liquid ejecting portion 12. The guide support portion 17a and the guide support portion 17b are provided at the same interval as the interval between the guide groove 15a and the guide groove 15b, and the guide support portion 17a is slidably guided in the guide groove 15a and the guide groove 15c. The portion 17b is slidably provided in the guide groove 15b and the guide groove 15c.

  The guide support portion 18a and the guide support portion 18b are provided at the same interval as the interval between the guide groove 16a and the guide groove 16b, and the guide support portion 18a is slidably guided in the guide groove 16a and the guide groove 16c. The portion 18b is slidably provided in the guide groove 16b and the guide groove 16c.

  The guide groove 15a is formed in such a length that the guide support portion 17a can move by a distance that is ½ of the interval between the nozzles 11, and the guide groove 15b is moved by a distance that is ½ the interval between the nozzles 11. It is formed to a possible length. The guide groove 15c is formed in such a length that the guide support portions 17a and 17b can move in the guide groove 15c by a distance that is ½ of the interval between the nozzles 11, respectively.

  The guide groove 16a is formed in such a length that the guide support portion 18a can move by a distance that is ½ of the interval between the nozzles 11, and the guide groove 16b is moved by a distance that is ½ the interval between the nozzles 11. It is formed to a possible length. The guide groove 16c is formed in such a length that the guide support portions 18a and 18b can move in the guide groove 16c by a distance of ½ of the interval between the nozzles 11 respectively.

  On the support table 15, a spring 21 that biases the cleaning liquid ejecting unit 12 toward the support table 16 is provided. One end of the spring 21 is fixed to the support portion 22 erected on the support base 15 and the other end is in contact with the left end of the cleaning liquid ejecting portion 12. On the support base 16, an air cylinder 23 that can move the cleaning liquid ejecting section 12 toward the support base 15 against the biasing force of the spring 21 is in a state in which its piston rod 23 a comes into contact with the right end surface of the cleaning liquid ejecting section 12. Is provided.

  In the non-operating state of the air cylinder 23, as shown in FIGS. 1A and 1B, the guide support portions 17a, 17b, 18a, and 18b are respectively formed in the corresponding guide grooves 15a, 15b, 16a, and 16b. The movement is restricted in contact with the right end. Further, in the operating state of the air cylinder 23, the guide support portions 17a, 17b, 18a, and 18b are moved to positions where they contact the left ends of the corresponding guide grooves 15a, 15b, 16a, and 16b, respectively, and then held in that position. It has become so.

  As shown in FIG. 1B, a swinging means for swinging the cleaning liquid ejecting section 12 in the width direction at a position facing the substantially central side surface in the longitudinal direction of the cleaning liquid ejecting section 12 with the cleaning liquid ejecting section 12 interposed therebetween. A spring 26 and an air cylinder 27 are provided. The spring 26 is provided in a state where one end is fixed to the support portion 28 and the other end is in contact with the substantially center of the cleaning liquid ejecting portion 12. The air cylinder 27 is fixed to the support bracket 29, and its piston rod 27 a is movable in a direction orthogonal to the longitudinal direction of the cleaning liquid ejecting unit 12, and on the opposite side of the contact position of the spring 26 at the approximate center of the cleaning liquid ejecting unit 12. It is provided in a contact state.

Next, the operation of the cleaning apparatus configured as described above will be described.
As shown in FIG. 2, the cleaning apparatus is driven in a state where the cleaning target 30 is disposed at the cleaning position below the cleaning liquid ejecting unit 12. The object to be cleaned 30 is placed on a placing portion (not shown) and is fixed as necessary by a support portion provided on the placing portion. The size of the object to be cleaned 30 is a position facing the right end nozzle 11 when the air cylinder 23 is in an inoperative state and a position facing the left end nozzle 11 moved to a position indicated by a chain line when the air cylinder 23 is in an operating state. The size is within the range of.

  When the cleaning device is driven, the cleaning liquid 31 is ejected from each nozzle 11 toward the object to be cleaned 30. Further, the air cylinder 23 and the air cylinder 27 are alternately driven to protrude every predetermined time. As a result, each nozzle 11 is reciprocated alternately in the left-right direction of FIG. 2 and the direction perpendicular to the paper surface of FIG.

  When cleaning is performed by ejecting the cleaning liquid 31 from the nozzle 11, the momentum of the spraying liquid rapidly decreases as the position moves away from the position facing the nozzle 11. By moving the plurality of nozzles 11, the position of the nozzle 11 facing the object to be cleaned 30 is changed, so that each part of the object to be cleaned 30 and the nozzle 11 face each other.

  However, as shown in FIG. 2, in the intermediate portion between the adjacent nozzles 11 and 11, the cleaning liquids 31 from the adjacent nozzles 11 collide with each other so that stagnation occurs and a phenomenon in which sufficient cleaning cannot be performed occurs. In order to suppress the adverse effect of this phenomenon, when the nozzle 11 is reciprocated along the article 30 to be cleaned, if the movement distance is the same as the interval between adjacent nozzles 11 as in the prior art, Since the location of the strong liquid flow and the location of the stagnation are each a constant location, the cleaning action of the portion that becomes the stagnation location is weakened.

  On the other hand, in this embodiment, the moving distance of the nozzle 11 reciprocating along the object to be cleaned 30 is ½ of the interval between the adjacent nozzles 11. Therefore, a portion that becomes a stagnation portion in the non-operating state of the air cylinder 23, that is, a portion where the cleaning liquid 31 ejected from the adjacent nozzle 11 collides is an intermediate position between the adjacent nozzles 11 shown by a solid line in FIG. In the operating state of the air cylinder 23 (the protruding operation state of the piston rod 23 a), the nozzle 11 is moved to the position indicated by the chain line, and the nozzle 11 is aligned with the portion that becomes a stagnation portion when the air cylinder 23 is not operating. The location of the itch is not a fixed location. As a result, the difference between the location where the cleaning action of the cleaning liquid 31 sprayed from the plurality of nozzles 11 becomes stronger and the location where the cleaning action becomes weaker is reduced, and the object to be cleaned 30 can be efficiently cleaned as a whole.

Further, the lengths of the air cylinders 23 and 27 for moving the cleaning liquid ejecting section 12 provided with the nozzles 11 are shortened, and the cleaning apparatus becomes compact.
In the case of an object to be cleaned 30 that requires cleaning on both sides, after the cleaning of one surface is completed, the object to be cleaned 30 is arranged with the other surface facing the nozzle 11, and the other surface is cleaned in the same manner. Done.

According to this embodiment, the following effects can be obtained.
(1) The cleaning device is arranged at equal intervals so that the plurality of nozzles 11 that eject the cleaning liquid 31 and the plurality of nozzles 11 are moved with respect to the object to be cleaned 30 at a moving distance that is ½ of the interval between the adjacent nozzles 11. Swinging means 13 for relative movement. According to this configuration, the difference between the location where the cleaning action of the cleaning liquid 31 sprayed from each nozzle 11 becomes stronger and the location where the cleaning action becomes weaker is equal to the distance between the nozzles 11 adjacent to each nozzle 11 and the object to be cleaned 30. It becomes smaller than the case of relative movement. Further, the relative movement distance of the plurality of nozzles 11 with respect to the object to be cleaned is reduced. Therefore, the difference between the location where the cleaning action of the cleaning liquid 31 sprayed from the plurality of nozzles 11 becomes stronger and the location where the cleaning action becomes weaker can be reduced, and the overall cleaning can be performed efficiently, and the cleaning device can be made compact. it can.

  (2) The plurality of nozzles 11 are moved relative to the object to be cleaned 30 in two directions, a direction parallel to the arrangement direction and a direction orthogonal to the arrangement direction. Since the cleaning liquid 31 ejected from the nozzle 11 hits the object to be cleaned 30 and spreads concentrically, the cleaning liquid 31 can be more uniformly and efficiently cleaned by moving in two orthogonal directions. The two orthogonal directions are not limited to the arrangement direction of the nozzles 11 and the direction orthogonal thereto, but compared to the configuration in which the nozzles 11 are relatively moved in an oblique direction with respect to the arrangement direction of the nozzles 11, The configuration is simpler when moving in the direction perpendicular thereto.

  (3) The plurality of nozzles 11 spray the cleaning liquid 31 from the top to the bottom. The cleaning liquid 31 ejected from the nozzle 11 receives a downward force due to the action of gravity. Therefore, when the cleaning liquid 31 is sprayed from top to bottom, the cleaning liquid 31 strongly hits the object to be cleaned 30 by the force of gravity, and for example, the cleaning liquid 31 is sprayed with the same spraying force in the horizontal direction. As compared with the above, the cleaning power by the cleaning liquid 31 is increased.

(Second Embodiment)
Next, a second embodiment will be described with reference to FIG. In this embodiment, the cleaning device is greatly different from the first embodiment in that the cleaning liquid injection unit 12 is provided with a pair of right and left cleaning liquids and both surfaces of the object to be cleaned 30 can be cleaned at the same time. The same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  Both cleaning liquid ejecting units 12 include nozzles 11 that eject the cleaning liquid 31 in the horizontal direction, and are arranged in two rows along the longitudinal direction of the cleaning liquid ejecting unit 12 in a state where the nozzles 11 face each other. The cleaning liquid injection unit 12 has guide support portions 17 a, 17 b, 18 a, and 18 b protruding from the surface opposite to the protruding direction of the nozzle 11. The guide support portions 17a, 17b, 18a, 18b are formed to be movable along guide grooves 15a, 15b, 15c, 16a, 16b, 16c formed in the support bases 15, 16. The guide grooves 15c and 16c are not shown in FIG. 3 because they are formed so as to extend in the direction perpendicular to the paper surface in FIG.

  The cleaning liquid ejecting section 12 is movable in the longitudinal direction, and is moved upward in FIG. 3 when the air cylinder 23 is operated with its lower surface supported by a support section (for example, a support roller) (not shown). The cleaning liquid ejecting unit 12 is held at the position shown in FIG. 3 by its own weight and the urging force of the spring 21 when the air cylinder 23 is not operated.

  Although not shown, below each cleaning liquid ejecting section 12 (on the back side in FIG. 3), each cleaning liquid ejecting section 12 is located above (at the front of the paper in FIG. 3) at a position facing substantially the center in the longitudinal direction of the cleaning liquid ejecting section 12. An air cylinder is provided for movement to the side). Above the cleaning liquid ejecting section 12 (the front side in FIG. 3), a spring for biasing the cleaning liquid ejecting section 12 downward (the back side in FIG. 3) is provided. In the non-operating state of the air cylinder, the cleaning liquid ejecting portion 12 is held in a state where the lower surface is in contact with the support portion by the biasing force of the spring, and in the longitudinal direction by the operation of the air cylinder 23 or the biasing force of the spring 21. It is moved intermittently. Further, the cleaning liquid ejecting unit 12 is moved to the front side of the sheet of FIG. 3 by the operation of the air cylinder when the air cylinder 23 is in an inoperative state.

  Then, when the cleaning device is operated in a state where the object to be cleaned 30 is arranged at the position indicated by the chain line in FIG. 3, the cleaning liquid injection unit 12 is in the longitudinal direction in a state where the cleaning liquid 31 is injected from each nozzle 11. Then, it is reciprocated (oscillated) intermittently at a movement distance of 1/2 of the interval between the nozzles 11 adjacent to each other in the vertical direction. In addition, the to-be-cleaned object 30 receives the washing | cleaning action in the state fixed as needed by the support part provided in the mounting part while it is mounted on the mounting part which is not shown in figure.

According to the second embodiment, in addition to the same effects as (1) and (2) of the first embodiment, the following effects can be obtained.
(4) Since the cleaning device sprays the cleaning liquid 31 from both sides of the object to be cleaned 30, the cleaning time can be shortened in the case of the object to be cleaned 30 that requires cleaning on both sides.

The embodiment is not limited to the above, and may be embodied as follows, for example.
When the nozzles 11 are provided in the cleaning liquid ejecting unit 12 in a plurality of rows, the number of rows is not limited to two, and may be three or more according to the size of the object to be cleaned 30.

  A plurality of nozzles 11 are not necessarily provided in a plurality of rows. For example, when the object 30 to be cleaned having a narrow width is exclusively cleaned, the nozzles 11 may be arranged in one row. When the nozzles 11 are arranged in one row, the cleaning liquid ejecting unit 12 is intermittently reciprocated (oscillated) only in the longitudinal direction at a moving distance that is ½ of the interval between the adjacent nozzles 11.

A cleaning apparatus including one cleaning liquid ejecting unit 12 may be configured to eject the cleaning liquid 31 in the horizontal direction as in the second embodiment.
The operation of moving the cleaning liquid ejecting unit 12 in parallel with the longitudinal direction and the operation of moving the cleaning liquid ejecting unit 12 in the direction orthogonal to the longitudinal direction are not necessarily performed alternately. For example, after the reciprocating motion in the longitudinal direction is performed a plurality of times, the reciprocating motion in the direction orthogonal to the longitudinal direction may be repeated a plurality of times.

  The reciprocation in the direction orthogonal to the longitudinal direction may be performed between the forward movement in the longitudinal direction and the backward movement in the longitudinal direction of the cleaning liquid ejecting unit 12. In this case, as shown in FIG. 4, the support base 15 is formed with a guide groove 15d extending parallel to the guide groove 15c so as to be continuous with the other ends of the guide grooves 15a and 15b, and is continuous with the guide grooves 15c and 15d. The guide groove 15e is formed in parallel with the guide grooves 15a and 15b. Further, a guide groove 16d extending in parallel with the guide groove 16c is formed in the support base 16 so as to be continuous with the other ends of the guide grooves 16a and 16b, and the guide groove 16e continuous with the guide grooves 16c and 16d is formed as the guide groove 16a, It is formed in parallel with 16b.

  In the case of the configuration of FIG. 4, the forward movement in the longitudinal direction, the backward movement in the longitudinal direction, the forward movement in the direction perpendicular to the longitudinal direction, and the backward movement in the direction perpendicular to the longitudinal direction are as follows: This can be done in any order. That is, the order of the moving direction of the cleaning liquid ejecting unit 12 may be changed as appropriate.

  The oscillating means 13 has a configuration in which a plurality of nozzles 11 that are arranged at equal intervals and inject the cleaning liquid 31 are moved relative to the object to be cleaned 30 at a movement distance that is ½ of the interval between adjacent nozzles 11. The cleaning liquid ejecting unit 12 is not necessarily required to swing. For example, the cleaning liquid ejecting unit 12 may be provided in a fixed state, and the article 30 to be cleaned, from which the cleaning liquid 31 is ejected from the nozzle 11, may be swung at a movement distance that is ½ of the interval between the adjacent nozzles 11. Specifically, in the case where the nozzle 11 is configured to spray the cleaning liquid 31 from the top to the bottom as in the first embodiment, a mounting table on which the object to be cleaned 30 is mounted is provided below the cleaning liquid spraying unit 12. The mounting table is configured to reciprocate at a certain height in the longitudinal direction of the cleaning liquid ejecting section 12 and in the direction perpendicular to the longitudinal direction at a movement distance of ½ of the interval between the adjacent nozzles 11.

  In the case where the nozzle 11 is configured to eject the cleaning liquid 31 in the horizontal direction as in the second embodiment, a support base that holds the cleaning target 30 at a position corresponding to the nozzle on the side of the cleaning liquid injection unit 12 is provided. . Then, a swinging means for reciprocally moving the support table at a certain height in the longitudinal direction of the cleaning liquid ejecting unit 12 at a movement distance of 1/2 of the interval between the adjacent nozzles 11, and the support table orthogonal to the longitudinal direction An oscillating means for reciprocating at a movement distance of ½ of the interval between the adjacent nozzles 11 in the vertical direction may be provided.

  ○ Instead of the pair of guide support portions 17a, 17b, 18a, 18b provided in the cleaning liquid ejecting portion 12, one guide support portion 17a, 18a is provided, and correspondingly, the guide grooves 15b, 16b are omitted. Also good.

  The cleaning device is not limited to the configuration in which the objects to be cleaned 30 are cleaned one by one, and a plurality of objects to be cleaned 30 may be cleaned at a time.

  DESCRIPTION OF SYMBOLS 11 ... Nozzle, 13 ... Swing means, 30 ... Object to be cleaned, 31 ... Cleaning liquid.

Claims (3)

A plurality of nozzles arranged at equal intervals to inject the cleaning liquid;
A cleaning apparatus comprising: a swinging means for moving the plurality of nozzles relative to an object to be cleaned at a movement distance of ½ of the interval between the adjacent nozzles.   The cleaning apparatus according to claim 1, wherein the plurality of nozzles are relatively moved in two directions, a direction parallel to the arrangement direction and a direction orthogonal to the arrangement direction.   The cleaning device according to claim 1, wherein the plurality of nozzles spray the cleaning liquid from top to bottom.