JPH07183B2 - Ultra high pressure water cleaning nozzle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention is applied to ultra high pressure, which is mainly used for removing mold burrs from semiconductor lead frames, removing scales, removing rust, and removing concrete from concrete panels. It relates to a water washing nozzle.

(Prior Art) As a conventional ultra-high pressure water cleaning nozzle of this type, as shown in FIG. 4, a swing shaft 3 is inserted into each of a pair of adjacent cylindrical casings 1. An eccentric rotating cylinder 2 having an outer peripheral circle center point and an inner hole center point eccentric to each other is interposed between the cylindrical casing 1 and the swing shaft 3 via a rotation support member so as to be rotatable. The pair of eccentric rotary cylinders 2, 2 are gear-connected to rotate in the same direction in the same phase, and the swing shafts 3, 3 are fixedly connected by the interlocking arm 75, and the one swing shaft 3 is connected to the swing shaft 3. By providing a nozzle and driving the eccentric rotary cylinder on the other swing shaft 3 side with an external motor and injecting ultra-high pressure water from the nozzle, the rotation (rotation) between the swing shafts 3 and 3 is restrained. It has been arranged that only the water is oscillated (revolved) to oscillate the water jet.

(Problems to be Solved by the Invention) However, in this conventional ultra-high pressure water cleaning nozzle, the rocking shafts are connected in a fixed state by an interlocking arm in order to rotate and rock the rocking shafts. It is difficult to obtain the dimensional accuracy of the distance between the swing shaft insertion holes 76, 76 of the interlocking arm, and the distance between the center axes of the cylindrical casing and the distance between the center axis of the eccentric rotating cylinder and the eccentric shaft are There has been a problem that limiting errors in the phase etc. when the interlocking arms of both swing shafts are set synergistically make the mounting state not uniform and damage the bearing which is the rotation support member.

The present invention has been made to solve the above conventional problems, and an object of the present invention is to cause a nozzle to rotate and swing only, and to interlock to perform only this rotary swing. The rotation support member that supports the swing shaft,
An object of the present invention is to provide an ultra-high pressure water cleaning nozzle that is prevented from being damaged due to processing and assembling accuracy of parts.

(Means for Solving the Problems) As means for achieving the above object, in the ultrahigh-pressure water cleaning nozzle of the present invention, a cylindrical casing and a swing shaft having a nozzle attached to the cylindrical casing and attached to the tip thereof are provided. Between the center point of the outer circle and the center point of the inner hole of the eccentric rotary cylinder, the eccentric rotary cylinder is rotatably mounted via the rotation support member, thereby reducing the eccentricity of the eccentric rotary cylinder. In an ultra-high pressure water cleaning nozzle in which a nozzle is oscillated as an oscillating radius, an eccentric boss which is connected to the eccentric rotary cylinder by a tuning means and whose outer peripheral surface rotates in the same direction as the eccentric rotary cylinder with the same eccentric amount. , A guide shoe that is rotatably mounted on the outer peripheral surface of the eccentric boss via a rotation support member and has both side surfaces formed as parallel sliding surfaces, and one end side is slidable on both side surfaces of the guide shoe. Fit in The base end side has a configuration including a guide arm secured to said pivot shaft.

(Operation) In the ultra-high-pressure water washing nozzle of the present invention, the guide shoe rotatably mounted on the eccentric boss with respect to the swing shaft having the nozzle attached to the tip is an eccentric rotary cylinder for rotating and swinging the swing shaft. By rotating and swinging the eccentric boss connected by the tuning means, both side faces swing (translate) in the same direction as the swing shaft with the same eccentric amount. A guide arm is fixed to the swing shaft and swings together with the swing shaft. Since one end side of the guide arm is slidably fitted to both parallel side surfaces of the guide shoe, the swing shaft rotates. (Spinning) is not possible, and only the rotational rocking is performed, and the jet water ejected from the nozzle hole at the tip is rotationally rocked.

(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

First, the configuration of the embodiment will be described.

The ultra-high pressure water cleaning nozzle A of this embodiment, as shown in FIGS. 1 to 3, includes a cylindrical casing 1, an eccentric rotary cylinder 2, and
The swing shaft 3, the eccentric boss 4, the tuning means 5, the guide shoe 6, and the guide arm 7 are the main components.

The cylindrical casing 1 is a casing for rotatably supporting the eccentric rotary cylinder 2, and has a vertical insertion hole.
A horizontal plate 11 is fixed to the upper end of the insertion hole 10, and the insertion hole 10 is formed in an open state.

The eccentric rotary cylinder 2 is for rotating and oscillating the oscillating shaft 3, and an eccentric inner hole 20 that is eccentric with respect to the outer peripheral circle center point (axis center) O is parallel to the axis center and vertically. A distal end portion 21 which is formed so as to penetrate therethrough and which is concentric with the center point O of the outer circumference is projected above the horizontal plate 11 and inserted into the insertion hole 10 and is rotatably supported via a bearing 22. ing. In the figure, P is the center point of the inner circumference circle of the eccentric inner hole 20, and has a distance m from the center point O of the outer circumference circle. Reference numeral 23 denotes a waterproof cover, which is attached to the rear end of the eccentric rotary cylinder 2 to prevent water from entering the insertion hole 10 by a labyrinth provided between the eccentric rotary cylinder 2 and the lower end of the cylindrical casing 1. There is.

The oscillating shaft 3 has a nozzle block 30 attached thereto to oscillate and rotate, and an upper end portion 31 is projected upward from a tip end portion 21 of the eccentric rotary cylinder 2 to be inserted into an eccentric inner hole 20 and a bearing. It is rotatably supported by 22. Therefore, the axis of the swing shaft 3 is the center point P of the inner circumference circle of the eccentric inner hole 20.
Will be located at the same position as. The nozzle block 30 is detachably attached to a flange 34 provided on the lower portion of the swing shaft 3 with the nozzle hole 33 facing downward. In the figure, reference numeral 24 is a cover for waterproofing the space between the swing shaft 3 and the eccentric inner hole 20, which also serves as a balancer for correcting the imbalance of the eccentric rotary cylinder 2 by changing the edge thickness.

The eccentric boss 4 is for mounting the guide shoe 6, and has a center point O of the shaft hole 40 and a center point P of the outer peripheral surface 41 of the eccentric boss.
Are formed to be the same as the eccentricity amount m of the center point P of the inner circumference circle with respect to the center point O of the outer circumference circle of the eccentric rotary cylinder 2. A shaft 42 protruding from the upper surface of the horizontal plate 11 is rotatably mounted via a bearing 43.

The tuning means 5 rotates the eccentric rotary cylinder 2 and the eccentric boss 4 at the same speed in the same direction, and is a motor.
A drive gear 51 driven by 50 is arranged at an intermediate position between the eccentric rotary cylinder 2 and the eccentric boss 4. Also, the eccentric rotary cylinder 2
A driven gear 52 having the same number of teeth is attached to each of the distal end portion 21 of the eccentric boss 4 and the concentric portion of the shaft hole 40 of the eccentric boss 4, and the eccentric inner hole 20 of the eccentric rotary cylinder 2 and the eccentric boss outer peripheral surface 41 of the eccentric boss 4 are attached. The drive gears 51 are connected to each other in the same phase.

The guide shoe 6 connects the guide arm 7 in a slidable state, and is formed with sliding surfaces 60, 60 whose both sides are parallel to each other, and an eccentric boss whose central portion is mounted on the shaft 42. The outer peripheral surface 41 of the eccentric boss 4 is rotatably supported via a bearing 61. Therefore, the center line 62 between the two sliding surfaces 60, 60
Is in a state of passing through the center point P of the outer peripheral surface of the eccentric boss.

The guide arm 7 prevents rotation (rotation) of the sliding shaft 3 and causes only rotation and rocking (revolution).
A substantially bifurcated fitting portion 70 is provided on one end side, and inner surfaces 71, 71 of the fitting portion 70 facing each other are slidable surfaces 60, 60 of the guide shoe 6.
The guide shoes 6 are formed to have a width substantially equal to the distance between the 60 and are slidably fitted to the guide shoes 6. Further, the base end side of the guide arm 7 is fixed to the upper end portion 31 of the swing shaft 3 protruding from the tip end portion 21 of the eccentric rotary cylinder 2.

Incidentally, reference numeral 12 in the drawing denotes an upper cover of the horizontal plate 11, to which the motor 50 of the tuning means 5 is fixed. Reference numeral 35 is a flexible pressure-resistant hose connected to the nozzle block 30 to supply high-pressure water.

Next, the operation of this embodiment will be described.

First, when the motor 50 is rotated, the drive gear 51 causes the driven gears 52, 52 to rotate in the same direction at the same speed. Then, since the eccentric rotary cylinder 2 rotates about the outer circumference circle center point O in the cylindrical casing 1 by the one driven gear 52, the inner circumference circle center point P of the eccentric inner hole 20 has a radius m and the outer circumference circle center. It will orbit around point O. Therefore, the shaft center of the swing shaft 3 mounted in the eccentric inner hole 20 via the bearing 32 also revolves around the outer peripheral circle center point O with a radius m.

In addition, the other driven gear 52 causes the eccentric boss 4 to move to the shaft 42.
Therefore, the center point P of the outer peripheral surface 41 of the eccentric boss has a radius m and goes around the center point O of the shaft hole 40. Further, the guide shoe 6 supported on the outer peripheral surface 41 of the eccentric boss via a bearing 61 also has a radius m and the center point O.
Will orbit around. Then, the swing shaft 3
The rotation (rotation) due to the rotation of the center point O is restricted by the guide arm 7 fixed to the upper end portion 31 at the base end side and fitted to the guide shoe 6 at one end side, and the bearing 32 exists. Will only revolve around,
The nozzle block 30 attached to the tip can be rotated and rocked.

Then, the mounting angle with respect to the maximum eccentric position when fixing the guide arm 7 to the upper end of the swing shaft 3, the distance between the insertion hole 10 of the tubular casing 1 and the shaft 42 protruding from the horizontal plate 11, and each part. Accuracy, and the driven gear 52 of the tuning means 5
Any slight error in the mounting angle or the like is absorbed by the inner side surfaces 71, 71 of the guide arm 7 sliding on the sliding surfaces 60, 60 of the guide shoe 6.

As described above, according to the present embodiment, the swing shaft 3
The nozzle block 30 attached to the tip of can be rotated and rocked only. In particular, even when the nozzle holes as shown in FIG. 1 are arranged horizontally long, the nozzle holes at any position can perform accurate aiming. Also, the swing shaft 3
Since the guide arm 7 for restraining the rotation of the guide shoe 6 absorbs all the slight errors and the like due to the distance between the shafts, the accuracy of each component, and the assembly accuracy thereof, etc. The bearings, shafts, motors, etc. are not overloaded and damaged.

Further, in the present apparatus, since the tuning means 5 is all located in the upper part apart from the nozzle block 30, it can be protected from strong water pressure and maintenance and inspection can be facilitated.

Although the embodiment of the present invention has been described above, the specific configuration of the present invention is not limited to this embodiment, and the present invention can be applied even if there is a design change or the like within a range not departing from the gist of the invention. included.

For example, in the embodiment, the drive gear 51 of the tuning means 5 is arranged between the driven gears 52, 52, but the invention is not limited to this.
One of the driven gears 52, 52 may be driven, and the driven gears may be connected to each other by providing an intermediate gear.

Further, in the embodiment, a gear is used as the tuning means 5, but the present invention is not limited to this, and a timing belt or the like may be used.

Further, in the embodiment, the flexible pressure-resistant hose 35 is connected to the nozzle block 30 attached to the tip of the swing shaft 3, but the invention is not limited to this. For example, a through hole is provided in the swing shaft 3 from the upper end 31 side. Water may be supplied.

(Effects of the Invention) As described above, in the ultra-high pressure water cleaning nozzle of the present invention, the outer peripheral surface is connected to the eccentric rotary cylinder by the tuning means and rotates in the same direction as the eccentric rotary cylinder with the same eccentric amount. An eccentric boss, a guide shoe rotatably mounted on the outer peripheral surface of the eccentric boss via a rotation supporting member, and both side surfaces of which are formed as parallel sliding surfaces, and one end side of the guide shoe is on both side surfaces of the guide shoe. Since the guide arm is slidably fitted and the base end side is fixed to the swing shaft, the swing shaft is mounted on the boss portion that rotates in the same phase as the swing shaft. Since it is fixed to the guide arm fitted to the guide shoe, the rotation (rotation) is restrained and only the revolution is performed, so that the nozzle can be oscillated and oscillated for accurate aiming.

In addition, since the guide arm is slidably fitted to the guide shoe, it may be slightly affected by the distance between the shafts of each part, the accuracy of each part, and the mounting accuracy of the eccentric part and the tuning means, the guide arm, etc. All such errors are absorbed by the sliding movement of the fitting portion, so that the rotation supporting members, shafts, motors, etc. are not overloaded and are not damaged.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing an ultrahigh pressure water cleaning nozzle according to an embodiment of the present invention, FIG. 2 is a sectional view taken along line I--I of FIG. 1, and FIG. FIG. 4 is an explanatory diagram showing an eccentric state, and FIG. 4 is an explanatory diagram showing a conventional ultrahigh pressure water cleaning nozzle. A: Ultra-high-pressure water cleaning nozzle O: Center point of eccentric rotary cylinder outer circumference circle and eccentric boss shaft hole P: Eccentric rotation cylinder inner circumference circle and eccentric boss outer circumference center point m: Eccentricity 1: Cylindrical casing 2 : Eccentric rotary cylinder 3: Swing shaft 4: Boss 5: Tuning means 6: Guide shoe 7: Guide arm 22,32,61: Bearing (rotary support member) 30: Nozzle block (nozzle) 41: Eccentric boss outer peripheral surface 60 : Sliding surface 70: Fitting part

Claims (1)

[Claims] 1. An eccentric rotary cylinder having an outer peripheral circle center point and an inner hole center point eccentric between a cylindrical casing and an oscillating shaft which is inserted into the cylindrical casing and has a nozzle attached to a tip thereof. An ultrahigh-pressure water cleaning nozzle in which the nozzles are rotatably inserted through rotary support members so that the eccentric rotation cylinder has an eccentric amount as a swing radius. An eccentric boss that is connected to the eccentric rotator with the same eccentric amount in the same direction as the eccentric rotary cylinder, and is mounted rotatably on the eccentric boss outer peripheral surface via a rotation support member and both side surfaces. A guide shoe formed on parallel sliding surfaces, and a guide arm whose one end side is slidably fitted to both side surfaces of the guide shoe and whose base end side is fixed to the swing shaft. Characteristic ultra high pressure water cleaning nozzle Le.