JP2006167667A - Nozzle-operating device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a nozzle-operating device for switching a spray direction that is almost free from troubles and convenient to use without any fear of an air leak and a short circuit due to nonuse of a conventional driving means such as an air cylinder and an electric motor. <P>SOLUTION: The nozzle-operating device that can drive a fluid-spraying nozzle 2 reciprocally while aiming at an object article and switch a spray direction comprises a supporting means 1 that allows the above nozzle 2 to swing, a tension spring 11 that bridges a hook 9 attached to the supporting means 1 and a hook 10 attached to the nozzle 2, a driving means for driving the above supporting means 1 reciprocally in a predetermined span and contact members 12 and 13 installed within the span of the reciprocation of the above nozzle 2 that serve to switch a spray direction of the nozzle 2 by contacting the nozzle 2. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an operating device for a nozzle such as a cleaning nozzle. More specifically, the present invention relates to a nozzle operating device configured to reciprocate a nozzle for ejecting an appropriate fluid such as cleaning liquid, rinsing water or drying air so as to face the object to be processed and to change the direction of the nozzle.

As a conventional nozzle actuating device of this type, a driving means such as an air cylinder or an electric motor is disposed on a supporting means for swingably supporting the nozzle, and the nozzle is driven to swing using these driving means. A device that changes the direction of the nozzle is known (Patent Document 1). In this prior art, the cleaning direction is changed by changing the directivity direction of the nozzle when cleaning the side end surfaces and upper and lower end surfaces of the object to be processed, and by inclining the directivity direction when the nozzle reciprocates to the front side in the traveling direction. I am trying to strengthen it. By the way, since the conventional nozzle operating device uses an air cylinder, an electric motor or the like as a driving means, the air supply piping or the electric supply wiring is necessary, and the nozzle is sealed in a cleaning chamber or the like. In the case where it is disposed in the processing chamber, it is necessary to take measures against waterproofing such as a connection for the air supply piping or electric supply wiring. Even when waterproofing measures are taken, there have been troublesome problems such as water intrusion due to deterioration of the sealing material during use, or troubles such as air leakage and electric leakage.
JP 2003-266029 A

  In view of the above-described conventional technical situation, the present invention provides a nozzle operating device for switching the direction of directing that does not use air cylinders, electric motors, or other driving means, and has no fear of air leakage or leakage. The purpose is to provide.

  In the present invention, in order to solve the above-described problem, in a nozzle operating device configured to reciprocate a nozzle for injecting a fluid so as to face the object to be processed and change a directivity direction, the nozzle is supported to be swingable. A support means; a tension spring that spans one end of the support means and the other end spans the nozzle; a drive means that reciprocates the support means within a predetermined range; and a reciprocating movement range of the nozzle, The technical means of providing a contact member that switches the directing direction by contacting the nozzle was adopted. The contact member may be disposed at both ends of the reciprocating movement of the nozzle, or may be disposed at an intermediate portion of the reciprocating movement. Moreover, workability is good when the reciprocating range of the nozzle is set to be wider than the dimension of the workpiece. As the nozzle, a wide flat nozzle may be used in a direction orthogonal to the reciprocating direction. In this case, work efficiency can be improved. The driving unit may be configured to change the reciprocating range of the nozzle in accordance with the size of the object to be processed. The abutting member can also be configured so that its installation position can be changed.

  In the present invention, since an air cylinder, an electric motor, or the like is not used as a driving means for changing the direction of the nozzle, the concern about air leakage and leakage due to the prior art is completely eliminated, and the usability with few failures is extremely good. It is possible to provide a simple nozzle actuation device. Moreover, since the configuration is simple, it can be provided at low cost.

  The present invention can be widely applied as a nozzle actuating device for low pressure or high pressure cleaning, rinsing or air blowing. There is no particular limitation on the type of jet flow or the jet form of the nozzle. For example, the jet flow can be applied to an appropriate fluid jet flow such as a gas flow, a liquid flow, a gas-liquid mixed flow, and a powder flow, and the injection mode may be a pressure type or a suction type. The cross-sectional shape of the jet flow may be flat, circular, or other shapes. Incidentally, if the width is wide in the direction orthogonal to the moving direction, the processing area is large, which is effective in improving work efficiency. It is also possible to configure the plurality of nozzles to swing integrally. Further, for example, in the case of rinsing with only water, a contact member may be provided in the middle part of the nozzle movement range and the direction may be switched in the middle part. The workpiece may be configured to move intermittently when switching between forward and backward movement of the nozzle, or may be configured to move continuously. It is also possible to configure the workpiece to be rotated. The moving direction may be vertical, horizontal, or diagonal. Furthermore, if it is configured to move not only in one direction but also in two orthogonal directions, the processing range can be expanded.

  1 to 7 are operation explanatory views sequentially showing how the nozzle operating device according to one embodiment of the present invention operates. In the figure, reference numeral 1 denotes a support means for swingably supporting the nozzle 2 and is configured to be reciprocally movable by a moving means such as an elevating chain 5 installed between the sprockets 3 and 4. The support means 1 is provided with a support shaft 6 that supports the nozzle 2 in a swingable manner, and stoppers 7 and 8 as locking portions that restrict the range of the swing. Further, a tension spring 11 is stretched between the latching portion 9 installed on the support means 1 and the latching portion 10 installed at an appropriate position of the nozzle 2 extending on the opposite side from the support shaft 6 so that the nozzle 2 is neutral. It is configured to be biased in a direction inclined to one side with respect to the point. In the figure, reference numerals 12 and 13 denote reversing contact members for switching the directing direction of the nozzle 2. In the present embodiment, the contact members 12 and 13 are supported by the support members 16 and 17 so as to be able to retract against the compression springs 14 and 15 so as to absorb variations in the lifting stroke. As illustrated in FIG. 8, the support means 1 includes two support plates 18 and 19 that support the nozzle 2 in a swingable manner in this embodiment, and bent portions 20 and 21 formed at their ends. The connecting plate 22 is fixed to the connecting plate 22, and the connecting plate 22 is connected to moving means for reciprocating the nozzle 2. For example, if the inclined portion 23 of the connecting plate 22 is connected to the two rows of chains 24 and 25 that move in the direction orthogonal to the paper surface as shown in the figure, the reciprocating movement is easily performed while maintaining the posture of the support means 1. Can be made.

  Next, the operation of the nozzle operating device will be described. First, FIG. 1 shows a state in which a predetermined processing operation is being performed while the nozzle 2 is raised, and the nozzle 2 is in a state where the jet stream 26 is inclined forward in the traveling direction, that is, upward. Oriented to. As described above, in the state of FIG. 1, the jet flow 26 ejected from the nozzle 2 is directed to a state inclined forward in the traveling direction, so that the spray force of the jet flow 26 on the surface to be processed is more effective. It is possible to operate efficiently. FIG. 2 shows a state in which the nozzle 2 is in contact with a part of an inclined concave contact portion 27 formed on the upper contact member 12, and the support means 1 is further raised in this state. The nozzle 2 rotates around the support shaft 6 against the spring force of the tension spring 11, and the support shafts 9 and 10 support the tension spring 11 as shown in FIG. When the neutral state located on the straight line connecting the nozzles 2 is exceeded, the spring force of the tension spring 11 causes the nozzle 2 to switch to the downward inclined state as shown in FIG. Stop in a state where it is locked. Since the switching operation of the directing direction of the nozzle 2 by the spring force of the tension spring 11 is executed rapidly, immediately after the switching, the nozzle 2 is in the concave contact portion of the contact member 12 as shown in FIG. 27 is floating from 27. When the support means 1 is further raised, the nozzle 2 comes into contact with the concave contact portion 27 of the contact member 12 again as shown in FIG. Thereafter, when the support means 1 is further raised, the nozzle 2 compresses and deforms the compression spring 14 as shown in FIG. 6 while remaining in contact with the concave contact portion 27 of the contact member 12. While continuing to rise. When the support means 1 reaches the preset upper limit position, the arrival at the upper limit position is detected by appropriate detection means such as an encoder provided in the drive motor of the sprocket 3, and the drive motor is The reverse rotation control is performed to switch the support means 1 to the lowering operation as shown in FIG. As a result, the nozzle 2 is lowered while the jet stream 26 is directed forward in the traveling direction, that is, downward, so that the jet stream 26 is blown onto the surface to be processed as in the above-described lift action. The attaching force acts more effectively, and an efficient process is obtained. Thus, thereafter, the up-and-down spraying operation of the nozzle 2 is continued while repeating the switching operation described above at the lower limit position and the upper limit position.

  The reciprocating range of the nozzle 2 can be regulated by setting the lower limit position and the upper limit position of the support means 1 through forward / reverse control of a drive motor that drives the reciprocating means such as the elevating chain 5. In general, it is set in a range wider than the dimension of the workpiece. The reciprocating range may be configured to be changeable according to the size of the object to be processed. Further, the switching timing of the moving direction of the supporting means 1 may be after the switching of the directing direction of the nozzle 2, and continues to rise while compressing and deforming the compression spring 14 as in the case of FIG. In addition to the mode of switching in the middle, for example, it is possible to set so that the moving direction of the support means 1 is switched immediately after switching of the directing direction of the nozzle 2 shown in FIG. Furthermore, if the arrangement position of the abutting member can be changed according to the dimension of the object to be processed, it is effective for expanding versatility. Incidentally, in the case of the present embodiment, the variation in the lifting stroke can be absorbed by the compression deformation of the compression springs 14 and 15. Furthermore, in the present embodiment, the case where the nozzles are moved up and down has been described. However, the present invention can be similarly applied to a mode in which the nozzles reciprocate in the horizontal direction or the oblique direction.

  FIG. 9 is a schematic explanatory view illustrating a state in which an object to be processed is cleaned using the nozzle 2. In the figure, reference numeral 28 denotes an object to be processed such as a container whose one surface is opened, and is held on the rotary table 29. In this embodiment, the nozzle 2 is raised or lowered while spraying a wide jet stream 26 ejected from the nozzle 2 from the side to the workpiece 28 on the rotary table 29 as shown in the figure. The case of performing the cleaning process is illustrated. When the nozzle 2 performs the switching operation at the upper limit position or the lower limit position, the rotary table 29 is rotated by, for example, 45 degrees in synchronization with the switching operation, and the workpiece 28 is rotated intermittently. In this case, while the nozzle 2 repeats the lifting and lowering operation four times, the entire circumference including the inner surface of the open portion of the workpiece 28 is repeated while repeating the intermittent rotation operation at a rate of one rotation of the workpiece 28. A cleaning process is performed on the surface. In addition, it is also possible to perform the cleaning process by spraying the jet stream 26 from the nozzle 2 that moves up and down in the vertical direction while continuously rotating the workpiece 28. Incidentally, the nozzle 2 is used for cleaning liquid injection, and an air blowing nozzle is incorporated in the vicinity of the nozzle 2 or an air blowing nozzle is provided separately from the nozzle 2 and air blowing is performed after spraying the cleaning liquid. It is also possible to perform a draining process.

  10 to 15 are operation explanatory views sequentially showing how the nozzle operating device according to another embodiment of the present invention operates. In the figure, reference numeral 30 denotes a support means for swingably supporting the nozzle 31, and is configured to be reciprocally movable by a moving means such as the lifting chain 5 similar to the above embodiment. The support means 30 is provided with a support shaft 32 that supports the nozzle 31 in a swingable manner, and stoppers 33 and 34 as locking portions that restrict the range of the swing. Here, the present embodiment has a structural feature in that the springs 35 and 36 are interposed between the stoppers 33 and 34 and the support means 30. Further, a tension spring 39 is stretched between a latching portion 37 installed on the support means 30 and a latching portion 38 installed at an appropriate position of the nozzle 31 extending on the opposite side from the support shaft 32, so that the nozzle 31 is neutral. It is configured to be biased in a direction inclined to one side with respect to the point. The spring force of the springs 35 and 36 is set to be stronger than the spring force of the tension spring 39 so that the stoppers 33 and 34 can function as locking portions that restrict the swing range of the nozzle 31. In the figure, reference numeral 40 denotes a contact member for reversal that switches the directing direction of the nozzle 31.

  Thus, in the case of the present embodiment, when the support means 30 rises from a state where the intended processing operation is being performed while the nozzle 31 illustrated in FIG. As shown in FIG. Thereafter, when the support means 30 is further raised, the nozzle 31 rotates about the support shaft 32 against the spring force of the tension spring 39, and the support shaft 32 is moved to the tension spring 39 as shown in FIG. When the neutral state positioned on the straight line connecting the latching portions 37 and 38 that support the nozzle is exceeded, the spring force of the tension spring 39 causes the nozzle 31 to rapidly incline downward as shown in FIG. The nozzles 31 are switched and stopped while the other end of the nozzle 31 is locked to the stopper 33. When the support means 30 is further raised and the nozzle 31 comes into contact with the contact member 40 again, the nozzle 31 rotates around the support shaft 32 while compressively deforming the spring 35 as shown in FIG. The tip portion of the nozzle 31 gets over the contact member 40, and then the spring 35 returns to the original state to reach the switching completion state of FIG. As described above, in the case of the present embodiment, the nozzle 31 is brought into contact with the contact member 40 and gets over the contact member 40, whereby the directing direction of the nozzle 31 is switched.

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Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Support means, 2 ... Nozzle, 3, 4 ... Sprocket, 5 ... Elevating chain, 6 ... Support shaft, 7, 8 ... Stopper, 9, 10 ... Stopping part, 11 ... Tension spring, 12, 13 ... Contact Members, 14, 15 ... compression springs, 16, 17 ... support members, 18, 19 ... support plates, 20, 21 ... bent portions, 22 ... connecting plates, 23 ... inclined portions, 24, 25 ... chains, 26 ... jets 27, concave contact portion, 28 ... workpiece, 29 ... rotating table, 30 ... support means, 31 ... nozzle, 32 ... spindle, 33, 34 ... stopper, 35, 36 ... spring, 37, 38 ... Latch part 39 ... Tension spring 40 ... Abutting member

Claims (5)

  In a nozzle operating device configured to reciprocate a nozzle for injecting a fluid so as to face the object to be processed and to change a directivity direction, a support means for swingably supporting the nozzle, and one end on the support means, A tension spring having the other end spanned over the nozzle, a driving means for reciprocating the support means within a predetermined range, and a reciprocating movement range of the nozzle, and switching the directing direction by contacting the nozzle. A nozzle actuating device comprising a contact member.   The nozzle operating device according to claim 1, wherein the contact member is disposed at both ends of the reciprocating movement of the nozzle.   The nozzle operation device according to claim 1 or 2, wherein the reciprocating range of the nozzle is set in a range wider than the dimension of the workpiece.   The nozzle operating device according to any one of claims 1 to 3, wherein the nozzle is a flat nozzle that is wide in a direction perpendicular to the reciprocating direction. The range of the reciprocating movement of the nozzle can be changed by the driving means according to the size of the object to be processed, and the installation position of the contact member can be changed. The nozzle actuator described.

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