JP4860764B2 - Cleaning device and cleaning method - Google Patents

Description

  The present invention relates to a cleaning apparatus and a cleaning method for removing dust or foreign matters adhering to an object to be cleaned, and in particular, a mask used in a soldering process for mounting electronic components used in various electric devices and the like on a printed wiring board. This is an effective technique for removing the flux adhering to the jig.

  2. Description of the Related Art In recent years, mask jigs called dip pallets, carrier pallets, and the like that mask areas other than soldering regions are often used in a soldering process using a flow solder bath in the manufacture of printed circuit boards. Such a mask jig needs to be periodically cleaned in order to reduce the accuracy of the mask because the flux accumulates on and adheres to the surface as it is used repeatedly.

  Therefore, in order to clean the object to be cleaned, such as a jig, to which flux, adhesive, or adhesive is adhered, the object to be cleaned is cleaned by injecting a solvent onto the upper and lower surfaces of the object to be cleaned in a solvent cleaning tank. There is a cleaning device that washes the solvent adhering to water with water and blows hot air on the object to be cleaned.

  However, when a cleaning device that uses a solvent is used to clean an object to be cleaned that has adhered flux, etc., energy is not only used in a large amount of solvent, but also in the treatment of waste liquid containing flux, etc. and the drying process after cleaning. There is a problem that the environmental load such as consumption is large and the cost is high.

  In order to solve these problems, a cleaning medium consisting of a lightweight and easy-to-fly solid is allowed to fly at high speed in the cleaning tank, and the cleaning medium is continuously brought into contact with the object to be cleaned and adhered to the object to be cleaned There is a cleaning device that separates dust, powder, and dirt adhered to a film without using a solvent. In this cleaning apparatus, the cleaning medium circulates inside the cleaning tank and repeatedly collides with the object to be cleaned, so that a large cleaning effect is exhibited even with a small amount of cleaning medium and dry. In particular, by using a flaky cleaning medium having flexibility, a cleaning capacity equivalent to or higher than that of ultrasonic cleaning can be achieved with a smaller amount of cleaning medium used.

In the above-described cleaning apparatus, a cleaning tank having a volume equal to or larger than the size of the cleaning target object is required because the cleaning target is put into the cleaning tank and the cleaning medium collides with the cleaning target.
However, if the cleaning tank is increased in size, it becomes difficult to fly the cleaning medium without staying in the cleaning tank, thereby reducing the frequency with which the cleaning medium collides with the object to be cleaned, resulting in a decrease in cleaning capability. There was a problem to do. For this reason, it was difficult to cope with cleaning of a large object to be cleaned.

  In the cleaning device disclosed in Patent Document 1, the tip of a casing having a nozzle for injecting water is pressed against a cleaning object, and the water jet collides with the cleaning object to perform cleaning. By moving the casing along the object to be cleaned, the cleaned water is collected without leaking outside.

  Moreover, the cleaning device for window glass or the like disclosed in Patent Document 2 is provided with a seal around the cleaner main body. When cleaning the window glass, the seal is separated from the window glass and a gap is provided between the seal and the window glass to create an air flow in the gap where air is sucked from the inside of the cleaner body. The glass is supplied to the brush to clean the window glass, and the cleaning liquid and filth are collected by an air flow.

JP 2004-299042 A Japanese Patent Publication No. 51-25653

  When a flaky cleaning medium is used in the cleaning apparatus disclosed in Patent Document 1, the cleaning medium is scaly sandwiched between the openings of the cleaning tank. The sandwiched cleaning medium lifts the seal to create a gap, which causes a problem that the cleaning medium leaks out of the flying space. If the amount of the cleaning medium is reduced due to the leakage of the cleaning medium in this way, the number of times the cleaning medium collides with the object to be cleaned is reduced, and the cleaning ability is greatly reduced.

  Further, when a cleaning object having a surface with unevenness is cleaned by the cleaning device disclosed in Patent Document 2, the size of the gap between the cleaning object and the seal fluctuates due to the unevenness of the surface of the cleaning object, resulting in an air flow. It becomes unstable and the cleaning medium leaks outside. When a cleaning device that circulates the cleaning medium in the cleaning tank is used, the cleaning medium flight amount decreases due to the leakage of the cleaning medium, and the cleaning medium decreases the number of times the cleaning medium collides with the object to be cleaned. Problem occurs.

  In view of the above circumstances, the present invention reduces the volume of the cleaning tank by disposing the object to be cleaned outside the cleaning tank, and causes the cleaning medium to fly without staying in the cleaning tank to make the surface uneven. An object of the present invention is to provide a cleaning apparatus and a cleaning method that can efficiently clean even an object to be cleaned.

  In addition, it is possible to prevent the cleaning medium from leaking out and quickly return the cleaning medium to the space where the cleaning medium flies, thereby maintaining the number of cleaning media colliding with the object to be cleaned and obtaining a stable cleaning ability. It is the purpose.

The invention according to claim 1, arranged washed objects outside of the cleaning tank, a cleaning apparatus for cleaning by colliding a cleaning medium flying in the cleaning target object by a gas stream, the cleaning medium fly, and A cleaning tank having an opening, a holding unit for disposing the object to be cleaned in the opening , a cleaning medium accelerating unit for causing the cleaning medium to fly, and a cleaning held on the outer edge of the opening by the holding unit A pool member arranged to have a gap with respect to the object, and a cleaning medium return unit that generates a suction airflow in the gap between the holding unit and the pool member, and in the space in which the cleaning medium flies As the air is sucked in, a differential pressure with the outside air is generated, and in the gap between the pool member and the holding part, the cleaning medium stays in the gap by generating an air flow toward the space where the cleaning medium flies. The washing medium is washed with the washing medium. A cleaning device and returning to the bath.
According to a second aspect of the present invention, in the cleaning apparatus according to the first aspect, the cleaning medium accelerating unit repeats the jetting and stopping of the airflow by intermittent driving.
Further, the invention of claim 3 is characterized by having a scraper member that is provided in the holding portion and sweeps out the cleaning medium staying in the pool member.
According to a fourth aspect of the present invention, an object to be cleaned is arranged outside the opening of the cleaning tank by generating an air flow in the cleaning tank in a state where the air in the cleaning tank is sucked and flying the cleaning medium. The cleaning medium is collided with an object to clean the object to be cleaned, and when an air flow is intermittently generated, a suction air flow is disposed at the outer edge of the object to be cleaned and the opening of the cleaning tank. The cleaning method is characterized in that the cleaning medium is generated from a gap formed by a member toward the cleaning tank, and the cleaning medium that has entered the gap is returned to the cleaning tank.

  According to the present invention, the cleaning medium can be allowed to fly without staying in the cleaning medium flying space, and the cleaning medium can be effectively used to stabilize the flying amount and maintain the cleaning ability.

It is a mechanism block diagram of the washing | cleaning apparatus of this invention. It is a partial expanded sectional view which shows the principal part of a washing | cleaning apparatus. It is a perspective view which shows the state which fixed the washing | cleaning target object to the washing | cleaning apparatus. It is a partial expanded sectional view of the washing | cleaning apparatus which has a scraper member in a holding | maintenance part. It is a partial expanded sectional view of the washing | cleaning apparatus which has a scraper member which has air permeability in a holding | maintenance part. It is a partial expanded sectional view of the washing | cleaning apparatus which has a scraper member which has an on-off valve in a holding | maintenance part. It is a partial expanded sectional view of the washing | cleaning apparatus which has a leak prevention airflow production | generation nozzle in a holding | maintenance part. It is a block diagram of a cleaning medium acceleration direction control nozzle. It is sectional drawing which shows the air current which ejects by the cleaning medium acceleration direction control nozzle. It is a block diagram of the washing | cleaning medium acceleration nozzle which has a jet nozzle of 2 right and left systems. It is a front view which shows the circular arc-shaped washing | cleaning medium damming part provided in the holding | maintenance part. It is a block diagram of the washing | cleaning apparatus which provided the some washing tank unit in series. It is a block diagram of the washing | cleaning apparatus which has a rotary holding | maintenance part.

  FIG. 1 shows an apparatus configuration of the cleaning apparatus of the present invention. 1A is a front view, FIG. 1B is a cross-sectional view taken along the line AA of FIG. 1A, and FIG. 1C is a top view. The cleaning device 1 includes a cleaning tank unit 2, a holding unit 3, and a cleaning medium return unit 8. FIG. 2 is an enlarged cross-sectional view of the cleaning device 1. FIG. 2 shows that the adhering matter adhering to the cleaning object 4 held by the holding unit 3 is removed by colliding the cleaning medium 5 flying by the airflow with the cleaning object 4.

  The cleaning medium 5 used in the cleaning apparatus 1 is a hard material such as polycarbonate or PET that has durability against impact. The thickness of the cleaning medium 5 is 0.1 to 0.2 mm, and the size of one side is a thin piece having a square shape of 5 to 10 mm. In the present embodiment, the cleaning medium 5 having the above-described thickness and size is used. However, it is effective to change the size and material depending on the cleaning object 4, and the present invention is not limited to this.

  When the airflow force acts in the direction where the projected area is large, the lamellar cleaning medium 5 is easily accelerated by the airflow and flies because the mass against the air resistance force is very small. In addition, the air resistance is small in the direction where the projected area is small, and high speed movement is maintained over a long distance when flying in that direction. For this reason, the energy of the cleaning medium 5 is large, and the force acting when the cleaning medium 4 comes into contact with the cleaning medium 4 becomes large, so that the deposits attached to the surface of the cleaning object can be effectively removed, and the cleaning medium Since the frequency of repeatedly circulating 5 and contacting the cleaning object 4 increases, the cleaning efficiency can be increased.

  Since the air resistance of the flake-like cleaning medium 5 varies greatly depending on the posture, the cleaning medium 5 not only moves along the air flow but also suddenly changes its direction and repeatedly contacts the cleaning object 4, so that the cleaning medium 5 is complicated. The cleaning efficiency of the shaped cleaning object 4 can be increased.

  The cleaning tank unit 2 includes a cleaning tank 6, a cleaning medium acceleration unit 7, and a pool unit 19. The cleaning tank 6 includes a cleaning tank main body 9 and a separation unit 10. The cleaning tank body 9 is formed in a semi-cylindrical shape, a rectangular shape, or a pyramid shape sealed on both sides, and has an opening at the top. The separation unit 10 has a large number of small holes or slits through which gas and dust can pass but the cleaning medium 5 cannot pass through. The separation unit 10 is formed in a smooth shape (for example, a semi-cylindrical shape) in which the cleaning medium 5 does not stay with a porous member such as a wire net, a plastic net, a mesh, a punch metal, or a slit plate. The separation unit 10 is provided in the cleaning tank 6 with a predetermined interval from the cleaning tank body 9.

  The cleaning medium acceleration unit 7 includes a cleaning medium acceleration nozzle 11 having a plurality of jet nozzles and a compressed air supply device 12 including a compressor. The cleaning medium accelerating nozzle 11 has a plurality of jet nozzles arranged in a straight line along the center of the bottom surface of the cleaning tank body 9, and is provided through the cleaning tank body 9 and the separation unit 10. The compressed air supply device 12 supplies compressed air to the cleaning medium accelerating nozzle 11 via the air supply pipe 14 having the control valve 13 and causes the cleaning medium 5 to fly.

  The cleaning medium return unit 8 includes a suction duct 15 and a suction device 16, and a suction airflow is generated in the gap 22 of the pool member 19 arranged so as to have a gap 22 with respect to the object to be cleaned 4 held by the holding unit 3. 17 is produced. The suction device 16 sucks air in the cleaning tank body 9 through the suction pipe 18. The suction duct 15 conveys air, dust, or the like sucked into the suction duct 15 via the separation unit 10. The suction device 16 has a performance of sucking a sufficient air flow rate compared to the air flow rate ejected from the cleaning medium acceleration nozzle 11 to make the inside of the cleaning tank main body 9 have a negative pressure. As shown in FIG. 2 (b), an opening may be provided in a part of the inner surface of the cleaning tank 6, the separation unit 10 may be fixed to this opening, and an independent suction duct 15 may be provided outside the separation unit 10. good. The pool member 19 and the side guide 21 formed in a concave shape have a certain length and are provided on both sides of the cleaning tank body 9. In the corner of the horizontal upper surface of the pool member 19, for example, a prismatic linear guide 20 having a thickness of about 5 mm is provided. The surface of the linear guide 20 is formed of a smooth material such as a fluororesin. The linear guide 20 holds the holding portion 3 and guides the movement of the holding portion 3 together with the parallel side guides 21 of the pool member 19. The clearance 22 between the horizontal upper surface of the pool member 19 formed by the linear guide 20 and the holding unit 3 may be of a size that does not sandwich the cleaning medium 5 and that allows the flowing airflow to be at a high speed. Appropriate conditions may be selected according to the size of the.

  The holding unit 3 has a plate shape longer than the cleaning object 4, and has a concave cleaning object holding unit 23 that matches the shape of the cleaning object 4 at the center. The cleaning object holding unit 23 is made of an elastic member such as urethane rubber or foamed resin, and fixes the cleaning object 4 by friction. The cleaning object holding unit 23 has any configuration that holds the cleaning object 4 that does not have a gap that does not leak the airflow for cleaning with the cleaning medium and that the cleaning medium 5 is clogged. It may be configured.

  The holding unit 3 is detachably connected to a driving unit (not shown) such as a linear motion motor, an air cylinder, or a wire driving unit, and drives the driving unit by a control signal from a control device (not shown). It moves along the pool member 19 in parallel with the operation. The pool member 19 has an area larger than the moving range of the cleaning object 4 held by the holding unit 3.

  Next, a series of operations for removing the adhering matter adhering to the object 4 to be cleaned by the cleaning apparatus 1 will be described.

  First, the cleaning medium 5 is put into the cleaning tank 6. As illustrated in FIG. 3A, the cleaning target 4 is held in the cleaning target holding unit 23 of the holding unit 3. Further, the cleaning object 4 is arranged toward the cleaning tank unit 2, and the holding unit 3 is placed on the cleaning tank unit 2. The holding unit 3 is connected to a drive unit (not shown), and the cleaning object 4 is moved onto the cleaning tank 6 as shown in FIG. As a result, a space for allowing the cleaning medium 5 to fly is formed between the cleaning object 4 and the cleaning tank 6. When the suction device 16 is driven by a control device (not shown) in this state, the air in the space in which the cleaning medium 5 flies is sucked. As the air in the space in which the cleaning medium 5 flies is sucked, a differential pressure from the outside air is generated, and the cleaning medium 5 is formed in the gap 22 between the pool member 19 and the holding portion 3 formed by the linear guide 20. Airflow is generated in the flying space. This airflow passes through the flat surface of the pool member 19 and is stratified to allow outside air to flow into the cleaning tank 6. Next, a control device (not shown) drives the compressed air supply device 12 to open the control valve 13 and supplies compressed air to the cleaning medium acceleration nozzle 11 so as to vertically move upward from the cleaning medium acceleration nozzle 11 into the cleaning tank 6. Generate airflow. As shown in FIG. 2, the cleaning medium 5 flies by this air flow and collides with the object 4 to be cleaned, so that the adhering material adhering to the surface of the object 4 is efficiently removed. The cleaning medium 5 that has collided with the cleaning object 4 falls due to the flow of airflow and gravity, and slides down in the vicinity of the cleaning medium acceleration nozzle 11 while being sucked on the separation unit 10. At this time, the adhering matter adhering to the cleaning medium 5 is sucked. The deposits separated by the separation unit 10 are collected by the suction device 16 through the intake duct 15 and the suction pipe 18. In addition, the cleaning medium 5 that has dropped to the vicinity of the cleaning medium acceleration nozzle 11 flies in the vertical upward direction again by the airflow ejected by the cleaning medium acceleration nozzle 11. By repeating this operation, the cleaning apparatus 1 removes the deposits attached to the surface of the cleaning object 4.

  When the cleaning object 4 is cleaned by the flying cleaning medium cleaning 5, airflow flows from the gap 22 between the pool member 19 and the holding unit 3. Therefore, the cleaning medium 5 that is about to enter the gap 22 is not pushed back into the space in which the cleaning medium 5 flies by the airflow and leaks outside the cleaning apparatus 1. Further, when the cleaning medium 5 enters the gap 22, the cleaning medium 5 does not leak to the outside of the cleaning apparatus 1 because the flow path by the gap 22 has a sufficient distance to attenuate the flying speed of the cleaning medium 5. Falls onto the pool member 19.

  When the cleaning medium 5 is caused to fly by the cleaning medium acceleration nozzle 11 to clean the object 4 to be cleaned, the control valve 13 is intermittently driven to repeatedly eject and stop the air flow from the cleaning medium acceleration nozzle 11. By repeating the jetting and stopping of the air flow, a timing at which the pressure difference between the inside and outside of the space in which the cleaning medium 5 flies is generated, and the cleaning medium 5 that has fallen on the pool member 19 is more reliably removed. Can be pulled back into the space where it flies.

  In parallel with the intermittent drive of the control valve 13, the control device reciprocates back and forth of the cleaning tank 6 along the side guide 21 and the linear guide 20 of the pool member 19 of the cleaning tank unit 2 to be cleaned. Wash object 4. After the holding unit 3 is reciprocated at least once, the control device stops driving the compressed air supply device 12 and the suction device 16 to complete a series of cleaning operations.

  Thus, by cleaning the cleaning object 4 by reciprocating the holding unit 3 with respect to the cleaning tank 6, even the cleaning object 4 having a large area can be reliably cleaned.

  In the description so far, the air in the cleaning tank 6 is sucked by the suction device 16, and the cleaning medium 5 is prevented from entering the gap 22 due to the airflow generated in the gap 22 between the pool member 19 and the holding unit 3. The case where the cleaning medium 5 is returned to the space where the medium 5 flies is shown. However, a scraper that opens and closes the gap 22 with a motor or a cylinder as shown in FIG. 4 in front of and behind the object to be cleaned 23 of the holder 3 that moves back and forth with respect to the cleaning tank 6 in parallel with this. A member 24 can be provided. Thus, by providing the scraper member 24 in the vicinity of the vicinity of the cleaning object holding portion 23, when the holding portion 3 is intermittently moved back and forth with respect to the cleaning tank 6 by the control device, the scraper member 24 is moved to the pool member 19. The cleaning medium 5 staying in the gap 22 between the pool member 19 and the holding portion 3 can be swept away and reliably returned to the cleaning tank 6.

  Further, as shown in FIG. 5, instead of the scraper member 24 for opening and closing the gap 22, a breathable scraper such as a punching metal, a resin plate having a slit, a flexible film, a flexible rubber plate, or a brush. The member 25 can also be used. In this way, the breathable scraper member 25 is connected to the cleaning target object 4 and driven to sweep the cleaning medium 5 on the pool member 19 so that the cleaning target object 4 has an uneven shape. Even if it exists, the quantity of the cleaning medium which flies can be maintained by quickly returning the cleaning medium 5 to the space where the cleaning medium 5 flies.

  Furthermore, as shown in FIG. 6, it is also possible to provide a scraper member 26 having an opening / closing valve 26a that can be opened and closed by an air flow at the bottom as the scraper member 24. As shown in FIG. 6A, the scraper member 26 having the opening / closing valve 26a dams the cleaning medium 5 that flies by closing the opening / closing valve 26a when the air flow is ejected from the cleaning medium acceleration nozzle 11. Thus, the cleaning medium 5 is prevented from leaking outside the cleaning device 1. When the air flow ejected from the cleaning medium accelerating nozzle 11 is stopped and the negative pressure in the cleaning tank 6 increases, the cleaning medium 5 blocked by the air flow that opens the on-off valve 26a and flows into the gap 22 is removed. It is put back in and used again for cleaning.

  Moreover, it is also possible to provide a shutter mechanism by a drive unit such as an air cylinder or a motor, instead of the on-off valve 26a that opens and closes by airflow. The control device controls the shutter mechanism to close when the air flow is ejected from the cleaning medium acceleration nozzle 11 in the cleaning tank 6 and to open the shutter mechanism when the air flow is not ejected from the cleaning medium acceleration nozzle 11. Just do it.

  In the above description, the air flow generated in the gap 22 between the pool member 19 and the holding unit 3 by sucking the air in the cleaning tank 6 by the suction device 16 has been described. On the other hand, as shown in FIG. 7, a leak-proof airflow generation nozzle 27 may be connected to the holding unit 3. In this case, the air in the cleaning tank 6 is sucked by the suction device 16, and pressurized air is supplied from the compressed air supply device 12 through the air supply pipe 29 having the control valve 28, and the airflow is generated from the leakage prevention airflow generation nozzle 27. Is generated in the gap 22 between the pool member 19 and the holding portion 3. The cleaning medium 5 can be more reliably prevented from entering the gap 22 by the air flow generated in the gap 22.

  The case where the cleaning medium accelerating nozzle 11 that generates the vertically upward airflow is provided in the cleaning tank 6 has been described so far. As shown in the top view of FIG. 8A and the AA cross-sectional view of FIG. 8B, the front and rear two systems inclined by a certain angle in the front-rear direction of the moving direction of the holding unit 3 with respect to the vertical upward direction. The cleaning medium acceleration direction control nozzle 31 having the jet nozzles 30a and 30b may be provided, and the pressurized air supplied to the two jet nozzles 30a and 30b may be switched by the switching valve 32.

  By providing the cleaning medium acceleration direction control nozzle 31, as shown in FIG. 9, when the cleaning medium 5 is caused to fly by an air flow in order to clean the cleaning object 4 held by the holding unit 3, The switching valve 32 is switched every fixed period, and the airflow injection direction is switched to the front-rear direction of the moving direction of the holding unit 3. By setting it as such operation | movement, the position where the washing | cleaning medium 5 collides with the washing | cleaning target object 4 can be made variable. By changing the position where the cleaning medium 5 collides at regular intervals, even if the surface of the cleaning object 4 has a complicated uneven shape, it is possible to reliably clean every corner of the uneven shape. Further, the cleaning medium 5 sandwiched in the gap 22 between the pool member 19 and the holding unit 3 is held by controlling the moving direction of the holding unit 3 and the acceleration direction of the cleaning medium 5 to always face each other. The air-permeable scraper member 25 provided in the section 3 is pushed out to return to the space in which the cleaning medium 5 flies. By controlling in this way, it is possible to suppress the cleaning medium 5 from remaining in the gap 22.

  Further, as shown in FIGS. 10A, 10B, and 10C, the cleaning medium accelerating nozzle 11 is set to the left and right in the longitudinal direction perpendicular to the moving direction of the holding unit 3. Divided into two, two right and left jet nozzles 33a and 33b are provided. You may comprise so that the pressurized air supplied to these two types of jet nozzles 33a and 33b may be switched by the switching valve 32. FIG. When the cleaning medium accelerating nozzle 11 is provided with two right and left two-part ejection ports 33a and 33b, as shown in FIG. 11, the scraper member 24 is arranged in an arc shape in the holding unit 3.

  In this way, when the scraper member 24 is arranged in an arc shape and air currents are alternately ejected from the left and right system jet outlets 33a and 33b of the cleaning medium acceleration nozzle 11 at regular intervals, the scraper member 24 is jetted from one jet outlet 33a. The airflow flows along the airflow guide member 34 and the arc-shaped scraper member 24. The airflow flowing along the arcuate scraper member 24 forms a flow path that returns to the cleaning tank 6, and returns the cleaning medium 5 that has collided with the cleaning object 4 into the cleaning tank 6. Therefore, the cleaning medium 5 can be reused by reliably returning it to the space in which the cleaning medium 5 flies without leaking to the outside of the cleaning device 1. As a result, the cleaning ability can be stabilized.

  Although the case where one set of cleaning tank units 2 is provided in the cleaning apparatus 1 has been described, in FIG. 12, for example, three sets of cleaning tank units 2a to 2c are arranged in series. In this case, the cleaning tank units 2a to 2c are arranged in series so as to independently correspond to the cleaning object holding unit 23 and the air-permeable scraper member 25 provided in the vicinity thereof. Further, in FIG. 12, the cleaning tank units 2 a to 2 c are arranged at regular intervals with respect to the moving direction of the holding unit 3, and the jet direction of the airflow of each cleaning medium acceleration nozzle 11 is different from the moving direction of the holding unit 3. Make it. For example, the jet direction of the air flow of the cleaning medium acceleration nozzle 11 included in the cleaning tank unit 2a is set to 60 degrees with respect to the moving direction of the holding unit 3, and the injection direction of the air flow of the cleaning medium acceleration nozzle 11 included in the cleaning tank unit 2b is maintained. 90 degrees with respect to the moving direction of the unit 3, and the jet direction of the air flow of the cleaning medium acceleration nozzle 11 included in the cleaning tank unit 2 c can be set to 120 degrees with respect to the moving direction of the holding unit 3. And when the holding | maintenance part 3 holding the washing | cleaning target object 4 is moved from the washing tank 2a side and the washing | cleaning target object 4 hold | maintained by the holding | maintenance part 3 exists in the position of washing tank unit 2a-2c, each washing tank unit 2a. The cleaning object 4 is cleaned by jetting an air stream from the cleaning medium acceleration nozzle 11 of ~ 2c to fly the cleaning medium 5.

  In this way, the cleaning apparatus 1 is provided with a plurality of cleaning tank units 2a to 2c, and the cleaning medium 5 is blown by an air current at different angles in each of the cleaning tank units 2a to 2c to clean the cleaning object 4, thereby cleaning the object to be cleaned. Even if the object 4 has a complicated uneven shape, the cleaning medium 5 can be collided from different directions. Therefore, the cleaning object 4 can be cleaned without unevenness. Needless to say, if the number of cleaning tank units 2 is sufficient, it is not necessary to reciprocate the holding unit 3. Further, if the number of cleaning tank units 2 is sufficient, a plurality of holding parts 3 holding the cleaning object 4 can be continuously put in and cleaned, and the plurality of cleaning objects 4 can be continuously shortened. Can be cleaned in time.

  Next, the cleaning apparatus 1a having the rotary holding unit 3a will be described with reference to FIG. As shown in FIG. 13B, which is a cross-sectional view taken along line AA in FIGS. 13A and 13A, the cleaning tank unit 2 of the cleaning device 1a includes a pool member 19 having a semi-cylindrical shape. A pair of arcuate guides 20a are provided at the inner corners of the pool member 19 as shown in FIG. The holding part 3a is formed in a cylindrical shape, and has a cleaning object holding part 23 at a position obtained by dividing the outer peripheral part into a plurality of equal parts, for example, four equal parts. The holding part 3a has a scraper member 25 having air permeability in the vicinity of each cleaning object holding part 23, and is rotated by a motor (not shown).

  The cleaning device 1a fixes the cleaning object 4 to the cleaning object holding part 23 of the holding part 3a at the cleaning object input position 35 in a state where a predetermined amount of the cleaning medium 5 is put into the cleaning tank 6, and performs cleaning. The object holding part 3a is rotated clockwise. When the cleaning object 4 held by the holding unit 3a reaches the position of the cleaning tank unit 2 by this rotation, the cleaning tank unit 2 is driven to suck in the cleaning tank 6, and air current is generated from the cleaning medium acceleration nozzle 11. The cleaning target 5 is cleaned by spraying and flying the cleaning medium 5. When the cleaning object 4 is being cleaned, it is possible to clean the entire surface of the cleaning object 4 by reciprocally driving the holding portion 3a clockwise and counterclockwise. When the cleaning of the cleaning object 4 is completed, the cleaning medium acceleration nozzle 11 stops the jet of airflow. Then, when the suction in the cleaning tank 6 is stopped and the holding unit 3a is rotated clockwise, and the cleaning target holding unit 23 reaches the cleaning target recovery position 36, the cleaning target 4 can be recovered. This operation is repeated to clean the cleaning object 4.

  Using the cleaning device 1 using the lamellar cleaning medium, cleaning the used device parts collected from the customer, reassembling the cleaned parts and restoring the device, it can be used as a recycled product of the device be able to.

1; Cleaning device, 2; Cleaning tank unit, 3; Holding part,
4; cleaning object, 5; cleaning medium, 6; cleaning tank, 7; cleaning medium acceleration unit,
8; Cleaning medium return part, 9; Cleaning tank body, 10; Separation part,
11; Cleaning medium acceleration nozzle, 12; Compressed air supply device, 13; Control valve,
14; air pipe, 15; suction duct, 16; suction device, 17; suction airflow,
18; suction pipe, 19; pool member, 20; linear guide, 21; side guide,
22; gap, 23; cleaning object holding part, 24; scraper member,
25; Breathable scraper member; 26; Scraper member having an on-off valve;
27; Leakage prevention airflow generation nozzle, 28; Control valve, 29; Air supply pipe, 30;
31; Cleaning medium acceleration direction control nozzle, 32; Switching valve, 33;
34; Airflow guide member, 35;
36: Position for collecting the object to be cleaned.

Claims (4)

Place the object to be cleaned on the outside of the cleaning tank, a cleaning apparatus for cleaning by colliding a cleaning medium flying in the cleaning target object by a gas stream,
A cleaning tank in which the cleaning medium flies and has an opening;
A holding part for disposing the object to be cleaned in the opening;
Cleaning medium accelerating means for flying the cleaning medium;
A pool member arranged on the outer edge of the opening so as to have a gap with respect to the cleaning object held by the holding part;
A cleaning medium return unit that generates a suction airflow in a gap between the holding unit and the pool member ;
As the air in the space where the cleaning medium flies is sucked, a differential pressure with the outside air is generated, and an air flow is directed toward the space where the cleaning medium flies in the gap between the pool member and the holding portion. A cleaning apparatus , wherein the cleaning medium staying in the gap is returned to the cleaning tank . The cleaning device according to claim 1,
The cleaning apparatus according to claim 1, wherein the cleaning medium accelerating unit repeats jetting and stopping of the airflow by intermittent driving. The cleaning device according to claim 1,
A cleaning apparatus comprising a scraper member that is provided in the holding unit and sweeps out the cleaning medium retained in the pool member. The airflow generated in the cleaning tank in a state that sucks air in washing Kiyoshiso,
The cleaning medium is made to fly by causing the cleaning medium to collide against a cleaning target disposed outside the opening of the cleaning tank by flying the cleaning medium,
When an air flow is generated intermittently, a suction air flow is generated from a gap formed by the object to be cleaned and a pool member arranged at an outer edge of the opening of the cleaning tank toward the cleaning tank, A cleaning method, wherein the cleaning medium that has entered the gap is returned to the cleaning tank.

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