KR20210029672A - Air nozzle - Google Patents

Abstract

The present invention relates to an air nozzle for cleaning the surface of a manufactured product by using the pressure of air injection to blow off the residual liquid or the attached chips, dust, oil stains, etc. associated with cleaning of a product in a manufacturing process or a manufactured product with cleaning liquid. The air nozzle comprises a fixed body (A1) and a rotating body (A2). The fixed body (A1) is provided with a cylindrical housing portion (2) having an opening in one end in an axial direction, and a fixed base portion (1) with a cylindrical penetrating portion (11b) formed therein. The rotating body (A2) includes: a rotating base portion (3) formed with an air flow path (31s); and an injection pipe portion (41) which is mounted on the rotating base portion (3) and in the direction of rotation of the rotating base portion (3). The air injection direction is inclined relative to the axis (L) of the rotating base portion (3). The rotating body (A2) further includes: a control pipe portion (42) in which the injection direction is inclined to the side opposite to the air injection direction of the injection pipe portion (41) with respect to the axis (L); and a circular plate portion (5) which is mounted on the rotating base portion (3) and provided with an injection hole portion (51) in which the front ends of the injection pipe portion (41) and the control pipe portion (42) are inserted. The control pipe portion (42) is capable of changing and fixing the inclination angle with respect to the axis (L).

Description

Air nozzle {AIR NOZZLE}

The present invention blows away residual liquid by washing of a cleaning solution or adhering cutting powder, foreign matter, grease, etc. from the manufacturing process or the manufactured product by the pressure of air (air) injection, and to an air nozzle that cleans the surface of the product. About.

In the manufacturing process of various products, in the final step, after cleaning with a cleaning solution, it is necessary to remove moisture remaining on the surface of the product after cleaning and then dry it. The process of removing moisture from the product and drying it is required to be a short time in order to improve the production efficiency of the product. The drying step in the washing step of the product is usually dried by blowing off the liquid remaining on the surface of the product by high-pressure air jetting.

In addition, in the manufacturing industry of mechanical parts, etc., cutting powder, foreign matter or residual cutting oil or releasing agent adhered to the surface of the product in the manufacturing process of mechanical parts, etc., are washed with a cleaning solution and then blown away with an air gun to remove, or It is generally practiced to remove it by blowing it away with an air gun without washing it with a cleaning solution.

Here, as a product requiring a cleaning process using a cleaning solution and a subsequent drying process, specifically, a resin molded product, a tray for storing food, clothing, machine parts, etc., a case for HDD, and a case for HDD. There are trays for storing them, and other resin molded products and machined products are present. In addition, as a specific example of the tray, there is a resin container for storing lunch boxes sold at convenience stores or supermarkets. In addition, as a tray, there is a container for protecting the semiconductor chip in the process of shipping the semiconductor chip, and such a tray is also sometimes washed with a hot water shower, and this becomes an object of the drying operation process.

And, in the machine manufacturing industry, at the production site, the oil stain, cutting powder, and debris of the products described above are cleaned by spraying a cleaning solution, and then the moisture is blown away by air, and such cleaning and drying are frequently performed. have. In particular, there is an apparatus for blowing off a cleaning liquid of a product in a manufacturing process.

Patent Document 1: Japanese Laid-Open Patent Publication No. 2018-187530

In the conventional cleaning apparatus, for example, an air gun or the like exists. After cleaning with a cleaning solution, etc. to remove residues such as cutting powder, foreign matter or residual cutting oil from products with irregularities on the surface of the tray, etc., the moisture remaining on most of the surface can be dried with the above-described air gun. There was. However, it was difficult to substantially completely remove the cleaning liquid remaining in the concave portion of the uneven surface of the product.

For this reason, in order to substantially completely remove the cleaning liquid, the product is placed in an upright state, and the product is transported so that the cleaning liquid naturally falls downward and flows from the product, or air is injected for a long time, or the temperature of the air is increased. Various means are employed. However, these operations are very inefficient and take up a significant amount of time in the cleaning process of the product.

In addition, since such a washing and drying means requires a large number of workers and also requires a large amount of related equipment such as a compressor, it is necessary to expand the equipment, which is also a great burden in terms of automation and cost. In recent cleaning devices, the above problems can be solved, but it is said that liquid and foreign matter remaining in concave locations such as grooves and holes as well as the surface of the product can be actively scraped off to completely remove moisture. It cannot be done, and further development is required.

In addition, like the rotational wave nozzle in Patent Document 1, the injection portion rotates with the rotating body by rotational force that is a component of the injection force by air injection from the nozzle, and the drying operation after washing is performed in a wave-type or intermittent type. It has been developed to blow off moisture such as a cleaning solution by air injection. And, for this kind, as can be seen in the graph showing the relationship between the rotational speed (rotation speed) and drying quality of the rotating body in FIG. 11, the rotational speed of the rotational body increased excessively, resulting in a constant rotational speed. From the time when it exceeds, the pulsation or intermittent effect of the air injection deteriorates, and the air injection becomes continuous, and the drying quality (which may also be referred to as drying operation performance) may be deteriorated.

In Patent Literature 1, the following problems have been suggested with respect to the conventional same type. To describe this problem, the rotational wave nozzle has a characteristic that the rotational speed is easy to increase because the rotational shaft is rotatably supported by a bearing and can be easily rotated even with low-pressure compressed air. And it is considered that drying quality deteriorates at high rotational speed. That is, between the rotational speed of the rotational wave nozzle and the drying quality, when the rotational speed exceeds the optimum value and rises, it becomes difficult to efficiently blow off the droplets.

And until the rotational speed reaches the optimum value, the rotational wave nozzle is said to be able to efficiently blow off the droplets because the compressed air is sprayed on the work in a wave form (periodic or intermittent). However, when the number of rotations exceeds the optimum value, the interval between the compressed air injected in a wave shape gradually becomes shorter, so that the compressed air does not cause a wave. It has been pointed out that this is equivalent to continuously spraying compressed air, so that the drying quality is deteriorated (see Fig. 11). Further, when the rotational speed of the rotational wave nozzle is increased, the life of the bearing is shortened and the noise is also pointed out.

In Patent Document 1, a rotation speed suppression means for suppressing an excessive increase in the rotation speed (rotation speed) of the rotating body is provided. However, the rotation speed suppression means in Patent Document 1 has a very complex structure, and there is a possibility that it is difficult to manufacture and expensive.

Therefore, the object of the present invention (technical problem to be solved) is to actively scrape off moisture remaining in the concave part as well as the surface of the part, to remove the adhered liquid or to easily blow away the oil stain mixed with the adhered oil and foreign matter. It is an object to provide an air nozzle having a very simple configuration, which efficiently throws away and blows away dust such as cutting powder, and suppresses excessive increase in rotational speed.

Accordingly, in order to solve the above problems, the inventors have repeatedly studied the invention of claim 1, and as a result of the invention of claim 1, while being connected to the cylindrical housing part with one end open in the axial direction and the other end in the axial direction of the cylindrical housing part, A fixed body having a fixed base portion having a cylindrical penetrating portion formed therein, a rotating base portion having an air flow path, and a rotating base portion having an air flow path, while being attached to the rotating base portion, follows the rotational direction of the rotating base portion, and the air injection direction is An inclined injection pipe portion, an air injection direction of the injection pipe portion and a control pipe portion in which the injection direction is inclined toward the opposite side to the axis center line, and the tip of each of the injection pipe portion and the control pipe portion are inserted through And a rotating body having a disk portion mounted on the rotating base and provided with an injection hole portion to be used, wherein the control tube portion is an air nozzle formed by variably and capable of fixing an inclination angle with respect to the axial center line. Thereby, the said subject was solved.

In the air nozzle according to claim 1, the invention of claim 2 has been solved by providing an air nozzle having a configuration in which the inclination angle of the air injection direction from the tip of the injection pipe portion is variable and fixed. . In the air nozzle according to claim 1 or 2, the invention of claim 3 has been solved by using an air nozzle having two configurations, respectively, of the injection pipe part and the control pipe part. According to the invention of claim 4, in the air nozzle according to claim 1 or 2, the above problems have been solved by setting the air nozzle configured to have two injection pipe portions and one control pipe portion.

According to the invention of claim 5, in the air nozzle according to claim 4, the injection pipe portion and the control pipe portion are arranged at equal intervals along the circumferential direction of the rotating base portion. Resolved. According to the invention of claim 6, in the air nozzle according to claim 4, the two injection pipe portions are located on both sides in the radial direction of the rotating base portion, and the control pipe portion is configured to be at a position orthogonal to both of the injection pipe portions. By setting it as an air nozzle, the said subject was solved. According to the invention of claim 7, in the air nozzle according to claim 6, a balance weight is provided at a position in the vicinity of the rotation base part of the control pipe part and at a position opposite to the radial direction. The task was solved.

In the invention of claim 8, in the air nozzle according to claim 7, the balance weight is an air nozzle in which a bolt is used, and a female screw is provided in the rotating base portion, thereby solving the above problem. In the air nozzle according to any one of claims 1, 2, 3, 4, 5, 6, 7 or 8 according to the invention of claim 9, the variable range of the inclination angle of the control tube part is 0 with respect to the axis center line. By setting it as an air nozzle made at degrees to 20 degrees, the said subject was solved.

In the invention of claim 1, an injection pipe portion comprising a fixed body and a rotating body, the rotation base portion of the rotation body along the rotation direction of the rotation base portion and inclined with respect to the axial center line of the rotation base portion, and the An air injection direction of the injection pipe part and a control pipe part in which the injection direction is inclined toward the opposite side to the axis center line is provided, and the control tube part allows the inclination angle with respect to the axis center line to be variable and fixed. Thereby, with a very simple configuration, it is possible to easily adjust the rotational speed (rotational speed) of the rotating body during air injection from the injection pipe part, and easily set the optimum rotational speed for the highest drying quality for the product. I can.

In particular, when the rotational speed (rotation speed) of the rotating main body is excessively increased, the drying quality of the product (work) due to the air injection of the air nozzle or the efficiency of the drying operation may be deteriorated. Even in such a case, the control pipe portion is provided in a direction opposite to the injection direction by the injection pipe portion by providing a control pipe portion in which the injection direction is inclined to the opposite side to the axis of the rotation base portion of the rotating body and the air injection direction of the injection pipe portion. Done.

By the above, it is possible to suppress an excessive increase in the rotational speed (rotation speed) of the rotational base part, so that the rotational base may have an appropriate rotational speed (rotational speed), and maintain the state thereof. Drying quality can be made very good by maximizing the effect of removing liquid (such as cleaning liquid), dust, and grease. In addition, air injection by the control pipe portion also contributes to drying of the product (work), and it is possible to achieve a more reliable drying operation together with the drying operation of the injection pipe portion.

In the invention of claim 2, by making the injection pipe part rotatable with respect to the air discharge part of the rotating base part of the rotating body, it is possible to adjust the wind power in the drying operation of air injection from the injection pipe part. In the invention of claim 3, the most stable drying operation can be performed by setting the injection pipe portion and the control pipe portion to two respectively. According to the invention of claim 4, two injection pipe portions and one control pipe portion have a simpler configuration, and the number of parts can be reduced, and manufacturing can be simplified.

According to the invention of claim 5, the injection pipe portion and the control pipe portion are arranged at equal intervals along the circumferential direction of the rotating base portion, so that under this structural condition, the rotating body can have the best rotational balance, and thus, when rotating. Vibration can be prevented or minimized. According to the invention of claim 6, the two injection pipe portions are located on both sides in the radial direction of the rotating base portion, and the control pipe portion is configured to be at a position orthogonal to both the injection pipe portions, and thus the air by the two injection pipe portions The drying operation by spraying can be stabilized.

According to the invention of claim 7, the balance weight is provided at the position near the rotation base part of the control pipe part and the position opposite to the radial direction, so that the imbalance caused by the unbalanced load during rotation of the rotating body can be corrected. Thus, it is possible to obtain rotational stability of the rotating body. According to the invention of claim 8, a bolt is used as the balance weight and a female screw is provided in the rotating base portion, so that the structure of the balance weight can be very simple. In the invention of claim 9, the variable range of the inclination angle of the control pipe portion can be suppressed so that the optimum state of the rotational speed (rotation speed) is achieved by setting the range of 0 to 20 degrees with respect to the axial center line.

[Fig. 1] (A) is a longitudinal side view of the air nozzle in the first embodiment of the present invention, (B) is a partially cutaway plan view as viewed from the opening side of the rotating body of the air nozzle, (C) is (B) It is a cross-sectional view in which the opening side is made downward by the arrow Y1-Y1 of.
[Fig. 2] (A) is an exploded longitudinal side view of the fixed body in the air nozzle, and (B) is an exploded longitudinal side view of the rotating main body in the air nozzle.
[Fig. 3] (A) is a cross-sectional view of a main portion showing a rotatable connection structure of a rotating base portion and a control pipe portion, and (B) is an enlarged view of a portion (α) of (A).
Fig. 4 is a plan view showing the injection state of the injection pipe portion and the control pipe portion as viewed from the opening side of the rotating main body in the present invention.
[Fig. 5] (A) is an enlarged view of the main part showing each injection force according to the inclination angle of the axial center line of the rotation base part and the injection pipe part, (B) is an enlarged view of the main part showing each injection force according to the inclination angle of the rotation base part axial center line and the control pipe Go.
[FIG. 6] (A) is a side view of a main part showing a state in which the inclination angle of the control pipe portion in the rotation base portion is set with an angle adjustment gauge, and (B) is a front view of the angle adjustment gauge for setting each inclination angle.
[Fig. 7] (A) is a plan view seen from the opening side after removing the disk portion of the air nozzle in the second embodiment of the present invention, and (B) is an air nozzle in a modified example of the second embodiment of the present invention. It is a partially cut-away plan view from the opening side, excluding the disk portion of.
[Fig. 8] (A) is a side view of the main portion in which the inclination angle of the control pipe is set to 0 degrees with respect to the axis center line, and (B) is a plan view as seen from the opening of the air nozzle in (A).
[Fig. 9] (A) is a plan view of an air injection device equipped with four air nozzles, (B) is a cross-sectional view of an arrow X1-X1 in (A), and (C) is a view of an air injection device equipped with two air nozzles. It is a top view.
[Fig. 10] It is a schematic longitudinal side view in which the air nozzle of the present invention is applied to an air jet drying system.
11 is a graph showing the relationship between the rotational speed of the air nozzle and the drying quality.

Hereinafter, embodiments of the present invention will be described based on the drawings. The air nozzle (An) of the present invention has a basic configuration, and is mainly provided with a fixed body (A1) and a rotating body (A2), and the rotating body (A2) includes an injection pipe part 41 and a control pipe part 42. It is provided (see Fig. 1, Fig. 2, etc.). Details of the injection pipe portion 41 and the control pipe portion 42 will be described later.

The fixed main body A1 is a non-rotating structure, and with respect to the fixed main body A1, the rotating main body A2 is mounted to the fixed main body A1 in a rotatable structure (Fig. 1(A), (B)). ), see Figs. 2 and 4]. Further, in the present invention, the gas of air injected from the air nozzle An is mainly ordinary air, but various types of gas are also included. In addition, in the following description, the word air may be replaced with gas.

The fixed body A1 is mainly composed of a fixed base portion 1 and a cylindrical housing portion 2 (see Fig. 2(A)). Here, in the present invention, the air nozzle An has a "open side" and a "rear side" in the axial direction (refer to Figs. 1 and 2). Moreover, about the said opening side, it may be referred to as a front side. The axial direction refers to the linear direction of the axial center that becomes the center of rotation when the rotating main body A2 rotates. The line of the axial center serving as the center of rotation is called the axial center line L of the rotating body A2. In addition, the axial center line L is also the axial center line of the entire air nozzle An, and therefore, the axial center line L is the rotation base part 3 and the disk part 5 constituting the rotation body A2. ) Also applies. The axial center line L is described in main drawings.

The fixed main body (A1) and the rotating main body (A2) constituting the air nozzle (An) are in a state where the rotating main body (A2) is mounted on the fixed main body (A1), and their respective axial centers coincide with the axial center line (L). And the positions of the opening side (front side) and the rear side are determined (see Fig. 1(A)). In addition, the axial center line L is also applied to the axial center of the fixed body A1. That is, with the rotating main body A2 attached to the fixed main body A1, each center coincides with or approximately coincides with the axial center line L (see Fig. 1).

The fixed base portion 1 has a fixed cylindrical portion 11 and a fixed flange portion 12 for connection (see Figs. 1 and 2A). The fixed cylindrical portion 11 is configured in an approximately hollow cylindrical shape (see FIGS. 1 to 3), and the cylindrical rotating portion 3 of the rotating main body A2 described later rotates with the axial center line L as the axis of rotation. It is mounted so that it is possible. As described above, the fixed cylindrical portion 11 has a substantially hollow cylindrical shape, and has a cylindrical penetrating portion 11b with open both sides in the axial direction along the axial center line L in the cylindrical shape. In the periphery of the opening at the rear end of the fixed cylindrical portion 11, screw holes 11c with female threads are formed along the periphery at equal intervals (see Fig. 2).

The fixed flange portion 12 for connection serves as a cover when receiving and disposing the bearing 34 and the spacer 35 mounted between the inside of the fixed cylindrical portion 11 and the rotating body A2, and will be described later. It serves as a connecting member for attaching the air nozzle An to the air nozzle base 6 (see Figs. 1 and 2). The fixed flange portion 12 for connection is fixed to one end of the fixed cylindrical portion 11 in the axial direction with a plurality of fixing holes 13 such as screws. The fixed flange portion 12 for connection is formed in an annular disk shape and is larger than the outer diameter dimension of the fixed cylindrical portion 11. The fixing flange portion 12 for connection is formed with a fixing through hole 12a, a connection hole 12b, and a connection hole 12c. The connection between the fixed cylindrical portion 11 and the fixed flange portion 12 for connection is made by a fixing hole 13, a connection hole 12b, and a screw hole 11c.

The cylindrical housing portion 2 has a diameter larger than that of the fixed cylindrical portion 11 of the fixed base portion 1, and has a cylindrical container shape (see Figs. 1 and 2). The cylindrical housing portion 2 has a cylindrical side wall plate portion 21 and a closing plate portion 22, and has one end side in the axial direction and a side opposite to the closing plate portion 22 as an opening 2a. And, as described above, the opening side of the cylindrical housing portion 2 of the fixed body A1 is the opening side (front side), and the opposite side in the axial direction along the axial center line L is the rear side. (See Figs. 1 to 3, etc.).

On the side of the closing plate portion 22 of the cylindrical housing portion 2, a through hole 22a into which one end in the axial direction of the fixed cylindrical portion 11 of the fixed base portion 1 is inserted is formed, and the fixed cylindrical portion 11 Wow, the closing plate portion 22 of the cylindrical housing portion 2 is fixed by fixing means such as welding. At this time, a part of the one end side in the axial direction of the fixed cylindrical portion 11 is in the state of being dug into the closing plate portion 22 of the cylindrical housing portion 2 (see Figs. 1(A), 2(A), etc.). That is, a part of one end of the fixed cylindrical part 11 in the axial direction is contained in the cylindrical housing part 2.

For this reason, the outer peripheral side surface near the axial opening side (front side) of the fixed cylindrical part 11 becomes a small diameter part with a smaller diameter, and there exists a step part 11a which becomes the step difference. The stepped portion 11a serves as a stopper and position adjustment for inserting and connecting the small diameter portion of the fixed cylindrical portion 11 to the through hole 22a of the closing plate portion 22 of the cylindrical housing portion 2.

Next, the rotating main body A2 has the rotating base part 3, the injection pipe part 41, the control pipe part 42, and the disk part 5 [FIG. 1(A), FIG. 2(B) ), see Fig. 3]. The rotary base portion 3 is composed of a rotary cylindrical portion 31 and a rotary flange portion 32 (refer to Figs. 1(A), 2(B), 3, etc.). The rotating cylindrical portion 31 is formed in a cylindrical cup shape, and is composed of a cylindrical side portion 31a and a tip end portion 31b. The cylindrical side surface portion 31a constitutes the outer periphery of the rotating cylindrical portion 31, and the tip end surface portion 31b is a portion that closes the axial opening side (front side) of the rotating cylindrical portion 31. The inside of the rotary cylindrical portion 31 is formed with an air flow path 31s made of a cylindrical void.

The rear side of the rotary cylindrical portion 31 is an open air inlet 31d. An air discharge portion 31c formed as a through hole penetrating between the inside and the outside is formed at a location on the side of the tip end 31b of the rotary cylindrical portion 31 or in the vicinity thereof. The air discharging part 31c is inserted into the injection pipe part 41 and the control pipe part 42, which will be described later, in the vicinity of each of the parts 41j and 42j, and the injection pipe part 41 and the control pipe part 42 ) And the air passage 31s.

Therefore, the air discharge part 31c is provided according to the number of the injection pipe part 41 and the control pipe part 42 attached to the rotation base part 3. On the axial rear side of the rotary cylindrical portion 31, the rotary flange portion 32 is fixed with a fixing tool 33 such as a screw (see Figs. 1(A), 2(B), 3, etc.). When the rotating flange part 32 is mounted on the fixed main body A1, it is rotatably locked to the fixed flange part 12 for connection of the fixed main body A1, so that the rotating main body A2 is held in a stable state. It serves to make it possible to rotate.

The rotary flange portion 32 has an annular disk shape, and an air inlet hole 32a is formed, and a connection hole 32b is formed around the periphery of the air inlet hole 32a. A screw hole 31e is formed in the end face of the rotating cylindrical part 31 on the rear side in the axial direction, and the rotating flange part 32 is connected to the rotating cylindrical part 31, a connection hole 32b, a screw hole 31e, and It is fixed by the fixing tool 33 (see Fig. 1(A), Fig. 2(B)). The outer periphery of the rotating flange portion 32 can be rotatably engaged with the inner periphery of the through hole 12a for fixing of the fixed flange portion 12 for connection of the fixed body A1 (Fig. 1 ( A), see Fig. 2 (B)].

Next, the injection pipe portion 41 and the control pipe portion 42 will be described. The injection pipe part 41 mainly serves to perform a drying operation for the product (work) 9 and a rotation operation of the rotating body A2. The control pipe part 42 serves to suppress the rotation speed (rotation speed) of the rotating body A2 by the injection pipe part 41. First, the injection pipe part 41 and the control pipe part 42 are attached to the rotating cylindrical part 31, respectively, 1 or 2 or more. As a specific number of the injection pipe part 41 and the control pipe part 42, the case where the injection pipe part 41 and the control pipe part 42 are two each (first embodiment) and the injection pipe part 41 are two, and control The case where there is only one pipe part 42 (2nd embodiment) is preferable.

However, the number of each of the injection pipe part 41 and the control pipe part 42 is not limited to the above, but the number of injection pipe parts 41 and the number of control pipe parts 42 may be set. Usually, it is preferable that the number of injection pipe parts 41 and the number of control pipe parts 42 are the same, or that the number of injection pipe parts 41 is greater than the number of control pipe parts 42.

In the description of the first embodiment in the present invention, the number of the injection pipe portion 41 and the control pipe portion 42 is set to two, respectively (see Figs. 1 to 5). The injection pipe part 41 is a pipe member for generating air injection for cleaning by circulating air and for generating propulsion air injection as a rotational force for rotating the rotating body A2. First, a description will be given from the injection pipe part 41 first. One end of the injection pipe part 41 is a proximal part 41j, the proximal part 41j is inserted into the air discharge part 31c of the rotary cylindrical part 31, and the proximal part 41j is an air discharge part 31c. ) Is configured to be rotatable in the circumferential direction (see Fig. 2(B)).

In addition, in the vicinity of the tip injection port 41c of the injection pipe part 41, the inclination is set so that the air injection can be performed in a direction opposite (or may be referred to as a reverse direction) from the rotation direction at the time of operation of the rotation body A2 set. have. Specifically, in the vicinity of the distal injection port 41c of the injection pipe part 41, the structure has an inclination angle θf along the outer circumferential direction of the rotation base part 3 and with respect to the axial center line L. Here, the inclination angle θf in the injection pipe part 41 may be the injection angle θf.

Here, the inclination angle θf is the direction of the injection force Ff of the air injected from the tip injection port 41c of the injection pipe part 41, that is, the rotation base part 3 with respect to the axial center line L. It refers to an angle inclined in the direction of rotation, that is, along the outer circumferential surface of the rotation base part 3, and the rotation direction is (reverse direction) with respect to the axis center line (L) (see Fig. 5(A)). ].

As described above, the tip injection port 41c of the injection pipe part 41 follows the rotation direction of the rotation base part 3 and is inclined in the air injection direction with respect to the axial center line L of the rotation base part 3. It is a configuration having an angle θf. In addition, as described above, the injection pipe part 41 has a structure in which the inclination angle θf can be varied by arranging or inserting the vicinity part 41j to the air discharge part 31c so as to be rotatable. have.

The rotation direction of the rotation body A2 is set to either a clockwise direction or a counterclockwise direction as viewed from the opening side (front side) of the air nozzle An. And, if the blowing force of the air (air) injected from the tip injection port 41c is Ff, the direction of this blowing force Ff is the inclination of the angle θf with respect to the axial center line L of the air nozzle An as described above. Becomes [refer to Fig. 5(A)]. Therefore, the dry spraying force for drying (washing) the product 9 is Ff·cos?f. The dry spraying force Ff·cosθf is a force in the same direction as the axial direction of the axial center line L.

Further, the rotational driving force for rotating the rotating main body A2 is Ff·sinθf (see Fig. 5A). The rotational propulsion force Ff·sin?f is a force in the direction orthogonal to the axial center line L and along the outer periphery of the rotation base part 3. In this way, the rotating body A2 of the air nozzle An is caused by the rotational propulsion force Ff·sinθf, which is a component force generated from the injection force Ff of the air (air) injected from the tip injection port 41c of the injection pipe part 41, It is possible to rotate the rotating body A2 together with the rotating base part 3 (see FIG. 4).

The inclination angle θf is set to be variable within a predetermined range, and specifically, is within the range of the minimum angle and the maximum angle. The minimum angle range is about 10 degrees, and the maximum angle is about 30 degrees. Preferably, the range of the minimum angle to the maximum angle is about 15 degrees to about 20 degrees, preferably about 15 degrees. And the range of this inclination angle θf can be adjusted as described above.

The injection pipe portion 41 is composed of a straight portion 41a, a curved portion 41b, and a peripheral portion 41j (refer to Figs. 1A, 2C, etc.). The continuous portion of the straight portion 41a and the bent portion 41b is formed gently and continuously, and the tip of the bent portion 41b has a tip injection port 41c, and the straight portion 41a As for the tip, the vicinity part 41j is located. The said vicinity part 41j is arrange|positioned or inserted in the air discharge part 31c, and the inclination angle of the injection direction of the said tip injection port 41c by the inclination angle with respect to the axial center line L of the said bent part 41b Is set.

A male screw portion 41d is formed in the vicinity portion 41j of the injection pipe portion 41. In addition, a female screw portion 31g is formed in the air discharge portion 31c, and the male screw portion 41d and the female screw portion 31g are joined together. The proximal part 41j of the injection pipe part 41 is inserted into the air discharge part 31c in a closed state, and the proximal part 41j is rotatable around the air discharge part 31c (Fig. 2(B)). Reference〕. Further, a fastener 43 is provided in the male threaded portion 41d.

The fastener 43 is specifically a nut, and the nut is used as a lock nut. In order to set the injection angle of the distal injection port 41c of the injection pipe part 41 to a desired angle, a fastener made with a lock nut at a desired position by rotating the adjacent part 41j inserted in the air discharge part 31c By moving 43 to the opening of the air discharge part 31c and fastening it as it is, the injection pipe part 41 is fastened and fixed at a desired position at the injection angle of the distal injection port 41c [Fig. 2(B) ), see Figs. 3, 5, etc.].

In addition, when adjusting the injection angle of the distal injection port 41c of the injection pipe part 41 again, the fixing by the fastener 43 may be released, and the injection angle of the distal injection port 41c may be adjusted again. There is also an embodiment in which the inclination angle (injection angle) θf of the tip injection port 41c of the injection pipe part 41 is fixed at a predetermined angle in advance. In this case, the inclination angle θf is set in a range of about 15 degrees to about 20 degrees, which is optimal.

Next, the control pipe portion 42 will be described. The shape of the control pipe part 42 is equal to or approximately equal to the injection pipe part 41, and the direction of air injection of the control pipe part 42 is always opposite to the direction of air injection of the injection pipe part 41 It becomes the (reverse) direction (refer to FIGS. 1, 4, 5, etc.). One end of the control pipe part 42 is a proximal part 42j, and the proximal part 42j is inserted into the air discharge part 31c of the rotary cylindrical part 31, and the proximal part 42j is an air discharge part 31c. ) Is configured to be rotatable in the circumferential direction.

And the tip injection port 42c of the control pipe part 42 has an inclination angle (injection angle) θr along the rotational direction of the rotation base part 3, that is, the outer circumferential surface and inclined with respect to the axial center line L. The inclination angle (injection angle) θr is inclined in a direction opposite to the axis center line L (inverse) from the inclination angle (injection angle) θf of the tip injection port 41c of the injection pipe part 41. Like the injection pipe part 41, the control pipe part 42 is also rotatable by inserting the vicinity part 42j to the air discharge part 31c. The inclination angle θr is variable, and the inclination angle θr is appropriately set (see Fig. 5B).

And if the blowing force of the air (air) injected from the tip injection port 42c is Fr, the direction of this blowing force Fr becomes the inclination of the angle θr with respect to the axial center line L (see Fig. 5(B)). Therefore, the dry spraying force for drying (washing) is Fr·cosθr. Further, the suppressing force for suppressing the rotational speed (rotation speed) of the rotating main body A2 is Fr·sinθr. In this way, the rotating body A2 of the air nozzle An is applied to the rotation suppression force Fr·sinθr, which is a component force generated from the injection force Ff of the air (air) injected from the tip injection port 41c of the injection pipe part 41. Thereby, the rotating body A2 can be rotated.

The inclination angle θr is set to be variable within a predetermined range, and specifically, is within the range of the minimum angle and the maximum angle. The inclination angle (injection angle) θr of the tip injection port 42c of the control pipe portion 42 is set smaller than the inclination angle (injection angle) θf of the tip injection port 41c of the injection pipe portion 41. In addition, the inclination angle θr in the control pipe portion 42 starts from being in the same direction as the axial center line L. That is, the inclination angle θr is an angle with respect to the axial center line L and includes 0 degrees. And the inclination angle θr is preferably a numerical angle smaller than the inclination angle θf in the injection pipe part 41 from 0 degrees.

In other words,

θf>θr≥0 degree

Becomes.

The control pipe part 42 has the same structure as the injection pipe part 41, and consists of a straight part 42a, a curved part 42b, and a vicinity part 42j. The continuous portion of the straight portion 42a and the curved portion 42b is formed gently and continuously, and a tip injection port 42c is located at the tip of the curved portion 42b, and at the tip of the straight portion 42a The vicinity part 42j is located. The said vicinity part 42j is arrange|positioned or inserted in the air discharge part 31c, and the inclination angle of the injection direction of the said tip injection port 42c by the inclination angle with respect to the axial center line L of the said bent part 42b Is set.

The setting structure of the inclination angle (injection angle) θr in the control pipe part 42 is the same as the structure of the inclination angle (injection angle) θf of the injection pipe part 41 described above. A male screw portion 42d is formed in the vicinity portion 42j of the control pipe portion 42. In addition, a female threaded portion 31g is formed in the air discharge portion 31c, and the male threaded portion 42d and the female threaded portion 31g are joined together. The vicinity portion 42j of the control pipe portion 42 is inserted into the air exhaust portion 31c in a closed state, and the vicinity portion 42j is rotatable around the air exhaust portion 31c. Further, a fastener 43 is provided in the male threaded portion 42d (see Figs. 3 and 5B).

The fastener 43 provided in the control pipe part 42 is the same as the fastener 43 provided in the injection pipe part 41. And, like the injection pipe part 41, the injection angle of the tip injection port 42c of the control pipe part 42 is fastened and fixed at a desired position. Then, when adjusting the injection angle again, the fixing by the fastener 43 may be released, and the injection angle of the tip injection port 42c may be adjusted again.

In addition, in the present specification, when the inclination angle θf of the air injection direction with respect to the axial center line L of the tip injection port 41c of the injection pipe part 41 is simply the inclination angle θf in the injection pipe part 41 There is also. Similarly, the inclination angle θr in the air injection direction with respect to the axial center line L of the tip injection port 42c of the control pipe part 42 is simply referred to as the inclination angle θr in the control pipe part 42.

Here, for angle adjustment of the injection angle (inclination angle) θf in the injection pipe part 41 and the injection angle (inclination angle) θr in the control pipe part 42, an angle adjustment gauge 45 is provided. There are cases (see Fig. 6). The angle adjustment gauge 45 is a plate-shaped body and includes a reference side 45a and a reference inclined side 45b. The reference side 45a is a part that comes into contact with a part of the rotating body A2, and the reference inclined side 45b sets the inclination angle θf and the inclination angle θr of the injection pipe part 41 and the control pipe part 42, respectively. It is a part.

There are a plurality of angle adjustment gauges 45, each according to an angle to be set, and specifically, a plurality of reference inclined sides 45b set to 5 degrees, 10 degrees, 15 degrees, 20 degrees, etc. The angle adjustment gauge 45 of is prepared. And, when setting the inclination angles in the injection pipe part 41 and the control pipe part 42, respectively, an angle adjustment gauge 45 having a desired reference inclined side 45b is prepared, and the injection pipe part 41 and the control pipe part Each setting angle in (42) is set.

Specifically, the fastener 43 of the injection pipe part 41 or the control pipe part 42 is loosened to make it rotatable. Then, the reference side 45a of the angle adjustment gauge 44 is brought into contact with a surface orthogonal to the axial direction, such as the bottom surface of the container part 36, and the injection pipe part 41 or the control pipe part 42 Is abutted so as to follow the reference inclined side 45b. Then, by fastening the fastener 43 again, the injection pipe portion 41 and the control pipe portion 42 are fixed (see Fig. 6(A)).

In the embodiment in which two injection pipe portions 41 and two control pipe portions 42 are provided on the rotary base portion 3 of the rotary body A2 (see Figs. 1 and 4), each of the adjacent portions 41j, 42j) are arranged at equal intervals along the outer periphery of the rotating base 3 or at an equal angle with respect to the center of the diameter of the rotating base 3.

At this time, with respect to the rotation base part 3, the two injection pipe parts 41 and 41 are located on both sides in the radial direction of the rotation base part 3, and the two control pipe parts 42 and 42 are also of the rotation base part 3 It is located on both sides in the radial direction, and constitutes a substantially cross shape by the injection pipe part 41 and the control pipe part 42. Accordingly, the two injection pipe portions 41 and the two control pipe portions 42 are arranged at intervals of 90 degrees.

Next, a second embodiment in the present invention will be described with reference to FIG. 7. In this second embodiment, in the injection pipe portion 41 and the control pipe portion 42, two injection pipe portions and one control pipe portion were employed. In this case, the two injection pipe portions 41 and 41 and one control pipe portion 42 are configured such that their respective adjacent portions 41j and 42j are arranged at equal intervals along the circumferential direction of the rotating base portion 3. It is to do. In other words, the rotating base portion 3 is arranged at an equal angle with respect to the center of the diameter, and in this case, the vicinity portions 41j and 42j are arranged at intervals of 120 degrees, and two injection pipe portions 41 and one control The pipe portion 42 constitutes a substantially Y-axis direction type (refer to Fig. 7(A)).

In addition, as a modified example of the second embodiment, the two injection pipe portions 41 and 41 are located on both sides in the radial direction of the rotary base portion 3, and one control pipe portion 42 is both injection pipe portions 41 and 41 In some cases, the position is perpendicular to the diameter line of the rotating base portion 3 connecting the. In this case, a substantially T-shape is formed by the two injection pipe portions 41 and one control pipe portion 42 (see Fig. 7B). That is, in this embodiment, in the configuration of the two injection pipe portions 41 and the two control pipe portions 42 in the first embodiment described above, it is substantially equivalent to the state excluding only one control pipe portion 42. It is composed.

In a modified example of this second embodiment, the balance weight 44 may be provided. And, in a state in which one control pipe part 42b is provided in the rotation base part 3, on the diameter line connecting the peripheral part 42j of the control pipe part 42 and the center of the diameter of the rotation base part 3 , The balance weight 44 is provided at a location opposite to the control pipe portion 42 (see Fig. 7(B)).

The balance weight 44 is preferably of substantially the same weight as the control pipe portion 42, and is specifically a combination of a bolt and a nut for fastening and fixing. When the balance weight 44 is bolted, the male screw 44b is aligned with the female threaded portion 31g formed in the air discharge portion 31c, and the bolted balance weight 44 is fitted with the rotating base portion 3 ) (See Fig. 7(B)).

By attaching the balance weight 44, the balance weight 44 can make the unbalanced load by the injection pipe part 41 and the control pipe part 42 on the rotation base part 3 equal weight distribution, By preventing the vibration during rotation of the rotating body A2, it is possible to stabilize the rotation. The control pipe part 42 has the same or substantially the same shape as the injection pipe part 41, but if necessary, the control pipe part 42 is made to have a different external shape from the injection pipe part 41 or a different inner diameter of the pipe. It may be done.

The disk portion 5 is capable of passing through the injection air of the tip injection port 41c of the injection pipe portion 41 and the tip injection port 42c of the control pipe portion 42. And, in the disk portion 5, the rotation center of the disk portion 5 and the rotation base portion 3 coincides or approximately coincides with the tip end surface portion 31b of the rotation cylinder portion 31 of the rotation base portion 3 To be connected. At this time, between the front end portion 31b and the disk portion 5, a cylindrical color portion 53 is provided to provide a predetermined distance, and the front end portion 31b, the disk portion 5 and the color portion 53 is fixed with a fixing tool 54 such as a screw ((P) vis, screw) (see Fig. 1).

At the center of the diameter of the disk portion 5, a mounting through hole 5n is formed, and a threaded portion of a fixing hole 54 such as a screw is penetrated through the mounting through hole 5n, and the collar portion 53 The fixing hole 54 is threaded into the screw hole of the. In the rotating body A2, the disk portion 5 and the injection pipe portion 41 perform rotational motion with the rotating base portion 3 as a rotating shaft along the axial center line L, and the control pipe portion 42 It is to suppress and control the excessive increase of the rotation speed (rotation speed) in the rotation operation. In addition, the color portion 53 may be integrally formed with the tip end portion 31b of the rotating cylindrical portion 31 of the rotating base portion 3.

The disk portion 5 is set so as to be located at the rear side in the axial direction than the opening periphery of the opening portion 2a of the cylindrical housing portion 2 of the fixed body A1. Then, the disk portion 5 has a structure positioned inward from the opening portion 2a of the cylindrical housing portion 2, that is, on the rear side of the cylindrical housing portion 2. And, by the opening 2a of the cylindrical housing portion 2 and the disk portion 5, a substantially flat cylindrical void chamber S having a depth dimension H from the opening 2a is the opening of the cylindrical housing portion 2 It is formed on the side (see Fig. 1(A)).

The depth dimension H is an amount for setting the volume of the void chamber S, and the volume can be appropriately set by appropriately adjusting the depth dimension H. Specifically, the depth dimension H of the void chamber S is a small amount compared to the overall height of the cylindrical housing portion 2. Further, the outer periphery 5a of the disk portion 5 is provided so as to be in a non-contact state with the inner peripheral side of the cylindrical side wall plate portion 21 of the cylindrical housing portion 2.

In the disk portion 5, an injection hole portion 51 is formed at a position near the outer circumferential side. The injection hole portions 51 are formed in the disk portion 5 in the same number as the number of the injection pipe portions 41 and the control pipe portions 42. The injection hole 51 is provided with a tip injection port 41c of the injection pipe part 41 and a tip injection hole 42c of the control pipe part 42. Specifically, the distal injection port 41c of the injection pipe part 41 and the distal injection port 42c of the control tube part 42 pass through the injection hole 51. In the state of penetration, the tip injection port 41c and the tip injection port 42c may penetrate the injection hole 51 by a slight amount.

The distal injection port 41c of the injection pipe part 41 has a configuration that does not exceed the opening 2a of the cylindrical housing part 2 (see Figs. 1A and 1C). That is, the tip injection port 41c of the injection pipe part 41 and the tip injection port 42c of the control pipe part 42 are located in the inner side without exceeding the opening 2a of the cylindrical housing part 2, and do not protrude outward. . The injection hole 51 is formed as an oval-shaped through hole, or is formed one dimension larger than the portion penetrating through the injection hole 51 of the tip injection port 41c and the tip injection port 42c, or is not shown. , It may be formed as a substantially U-shaped notch having a portion open at the outer periphery of the disk portion 5.

The assembly of the fixed body A1 and the rotating body A2 in the air nozzle An in the present invention will be described. Two bearings 34 are provided in the air nozzle An. First, in the fixed body A1, the first bearing 34 is inserted from an opening on the rear side of the fixed base 1 in the axial direction, and then the spacer 35 is inserted, and then the second bearing 34 ) Is inserted.

Next, the rotating base portion 3 of the rotating body A2 is inserted into the inner circumferential sides of the first and second bearings 34. The spacer 35 is two cylindrical rings, one of which is mounted along the inner circumferential side of the cylindrical through portion 11b of the fixed cylindrical portion 11 of the fixed body A1, and the other is rotated. It is mounted so as to follow the cylindrical side portion 31a of the cylindrical rotating portion 3 of the main body A2 (see Fig. 1).

Then, the fixed flange portion 12 for connection is fixed to the rear end of the fixed base portion 1 of the fixed body A1 by means of fixing tools 13 such as screws, and the first and second bearings 34 And the spacer 35 is fixed between the fixed base portion 1 of the fixed body A1 and the rotary base portion 3 of the rotary body A2. In addition, at the location of the fixed through hole 12a of the fixed flange portion 12 for connection, and at the rear end of the rotary cylindrical portion 31 of the rotary body A2, the rotary flange 32 is a fixing tool such as a screw. It sticks to (33). Thereby, the rotating main body A2 is rotatably mounted with respect to the fixed main body A1, and the said rotating main body A2 rotates using the axial center line L as a rotation center line (refer FIG. 1, FIG. 3).

In the rotating main body A2, there is an embodiment in which a flat cylindrical container portion 36 in which a void portion 36b is provided is provided (see Figs. 1 and 3). The container portion 36 is formed in a substantially donut or tube shape, and has a hollow portion 36b having a hollow inside. The container part 36 is fixed to the rotating base part 3 of the rotating main body A2 and provided at a position close to the closing plate part 22 side of the cylindrical housing part 2 of the fixed main body A1.

The container part 36 rotates together with the rotating body A2. In the container part 36, an annular insertion hole 36a is formed on a surface of the cylindrical housing part 2 close to the closing plate part 22 side, and the through hole 36a for insertion is fixed as described above. It is a configuration in which a tip portion on the axial opening side of the fixed cylindrical portion 11 of the main body A1 is inserted (see Fig. 1). A gap is created between the inner periphery of the through hole 36a for insertion of the container portion 36 and the outer periphery of the fixed cylindrical portion 11 of the fixed base portion 1, and they are not in contact with each other. A bearing 34 provided between the fixed body A1 and the rotating body A2 is disposed at a tip portion of the fixed cylindrical portion 11 on the axial opening side.

That is, the periphery of the location where the bearing 34 mounted between the fixed body A1 and the rotating body A2 is located is surrounded by the container part 36 and the annular void part 36b exists. It has a configuration (see Figs. 1 and 3). Then, grease or oil for lubrication of the bearing 34 leaks out, so that oil separated from between the fixed main body A1 and the rotating main body A2 is collected in the void part 36b of the container part 36. I can.

That is, the container part 36 is a storage container for leaking grease or lubrication oil. Thereby, while the contamination of oil can be prevented from spreading in the cylindrical housing part 2, it is possible to prevent contamination of the product 9 in the drying operation of the product 9. It does not matter even if the container part 36 is not attached to the air nozzle An.

Next, an operation of the air nozzle An and a structure for suppressing an excessive increase in the rotational speed (rotation speed) will be described. The air nozzle An rotates by adjusting the inclination angle (injection angle) θf with respect to the axial center line L of air injection from the tip injection port 41c of the injection pipe part 41 of the rotating body A2. The rotational driving force Ff·sinθf for rotating the main body A2 changes (see Fig. 5A). That is, if the inclination angle θf with respect to the axial center line L is set to be small, the rotational propulsion force Ff·sinθf for rotation becomes small, and the rotation speed of the rotation body A2 decreases and becomes slower, and the rotation speed (rotation speed ) Is also reduced, and the rotational speed of the rotating body A2 can be slowed down. However, the dry spraying force Ff·cosθf increases, and the drying force increases.

In addition, when the inclination angle θf with respect to the axial center line L is set to be large, the rotational propulsion force Ff·sin θf for rotation is increased. Thereby, the rotational speed of the rotating main body A2 becomes large and fast, and the rotational speed (rotation speed) is also increased, so that the rotational speed of the rotating main body A2 can be increased. However, the dry spraying force Ff·cosθf becomes small, and the drying force decreases.

In general, a normal air nozzle An performing a drying operation has a rotational portion provided with a pipe for air injection is supported by a bearing and has smooth rotational performance, so that the rotational speed of the rotational portion is liable to increase. In particular, there is a problem in that drying quality or drying efficiency is deteriorated in a high rotational speed region in which the rotational speed is excessively increased. That is, between the rotational speed of the rotational part of the air nozzle An and the drying quality, the drying efficiency or drying quality improves until the rotational speed in the rotational speed reaches the optimum value, but in the rotational speed If the number of rotations exceeds the optimum value and continues to rise, it becomes difficult to efficiently blow off the droplets (see Fig. 11).

That is, until the rotational speed reaches the optimum value, compressed air can be sprayed on the work in a wave-like manner (periodic or intermittent), and droplets can be efficiently blown away. However, when the rotational speed rises excessively and the rotational speed exceeds the optimum value, the interval between the compressed air sprayed in a wave shape gradually becomes shorter, and eventually the compressed air does not generate a wave. Since this is the same as continuously spraying compressed air, drying quality and drying work efficiency are deteriorated. In addition, when the rotational speed of the rotational wave nozzle increases, there is a problem that the life of the bearing is shortened and noise is increased.

In the present invention, by excessively increasing the rotational speed of the rotating body A2 in the air nozzle An, drying of the product 9 by air injection of the air nozzle An as described above. It prevents the occurrence of a situation in which the work efficiency is deteriorated and the drying work is not performed smoothly, and also prevents a burden on bearings or other members by excessively increasing the rotational speed of the rotating body A2. I can.

That is, there are appropriate values for the rotational speed and rotational speed of the rotating body A2. In addition, it is preferable to adjust the rotational speed of the rotating main body A2 according to the shape and size of the product 9 to obtain an optimum state. In this case, in the present invention, the air injection of the control pipe part 42 resists the air injection of the injection pipe part 41, suppresses an increase in the rotation speed (rotation speed) of the rotating main body A2, and the excessive rotation speed It prevents (rotational speed) from becoming, and always maintains the rotational speed (rotational speed) of the rotating body A2 in an optimal state.

Thereby, the air injection from the tip injection outlet 41 of the injection pipe part 41 can be waved (periodically, intermittently) and injected onto the product 9, so that droplets can be efficiently blown away. The best effect of removal and drying of liquids (such as cleaning solutions), dirt, and grease adhered to the product (9) can be achieved.

The suppression of the increase in the rotational speed (rotation speed) by the control pipe portion 42 will be described. Here, in the rotating body A2, the injection pipe part 41 and the control pipe part 42 are provided in two, respectively, and the two injection pipe parts 41 and the two control pipe parts 42 have a substantially cross-shaped configuration. In addition, the injection pipe portion 41 and the control pipe portion 42 will be described as having the same shape and the same inner diameter.

The injection pipe part 41 and the control pipe part 42 are inclined in opposite directions along the outer periphery of the rotation base part 3 with respect to the axial center line L of the rotation base part 3. In addition, as described above, the magnitude relationship between the inclination angle θf in the injection pipe part 41 and the inclination angle θr in the control pipe part 42 is 0°≦θr<θf as described above.

Here, the rotational propulsion force by the injection pipe part 41 in the rotating body A2 is Ff·sinθf, and the rotational control force by the control tube part 42 is Fr·sinθr (see Fig. 5(B)). The rotational propulsion force by the injection pipe part 41 and the rotation control force by the control pipe part 42 are,

Ff·sinθf＞Fr·sinθr

to be.

And the rotational propulsion force Ff·sinθf by the injection pipe part 41 and the rotational control force Fr·sinθr by the control tube part 42 are opposite to each other (reverse direction). Therefore, the rotational control force of the control pipe part 42 with respect to the rotational propulsion force of the injection pipe part 41 suppresses an excessive increase in the rotation speed (rotation speed) of the rotation body A2, and the rotation of the rotation body A2 The number (rotation speed) can always be kept in an optimal situation. In addition, the control pipe part 42 can adjust the inclination angle θr with respect to the axial center line L of the rotation base part 3, and by changing the inclination angle θr, the desired number of rotations (rotation speed) of the rotating body A2 Can be set to.

The above is applied to the condition in which two injection pipe parts 41 and control pipe parts 42 of the same shape are provided in the rotating body A2, respectively. Therefore, as shown in Fig. 7, when two injection pipe portions 41 and one control pipe portion 42 are provided in the rotating body A2, the structure for suppressing the number of revolutions (rotation speed) is different, and in each case Accordingly, it is necessary to appropriately change the inclination angle θr in the control pipe portion 42.

That is, while the rotational thrust force Ff·sinθf by the two injection pipe portions 41 is two, the rotational control force Fr·sinθr by one control tube portion 42 is one. Therefore, in order to make the rotation speed (rotation speed) of the rotation body A2 appropriate, it is necessary to largely adjust the value of the rotation control force Fr·sinθr by the control pipe part 42, and the inclination angle with respect to the axis center line L In some cases, θr is increased. In addition, in the drying operation of the product 9 by the air nozzle An, the injection pipe part 41 plays its role, but the air injection by the control pipe part 42 can also participate in the drying operation.

In addition, FIG. 8 is a case where the inclination angle θr with respect to the axis center line L in the control pipe portion 42 is 0 degrees. That is, it is the case where the air injection direction from the tip injection port 42c of the control pipe part 42 coincides with the axial center line L. In this case, air injection by the control pipe portion 42 is almost used for drying work. In particular, it is effective when the distance between the air nozzle An and the product 9 as a drying object is large.

The product 9 in this case is, for example, a deep-bottomed container (poly bucket, pot type). And, in the case where the inclination angle θr of the control pipe part 42 is set to 0 degrees with respect to the axial center line L, since the air injection by the control pipe part 42 follows the axial center line L, the total injection force is the product 9 ), and the reaction force at that time acts as a control force by the control pipe portion 42, suppressing an excessive increase in the rotational speed (rotation speed) of the rotating body A2, and reducing the rotational body A2 to the optimum rotational speed ( Rotation speed) can be maintained (see Fig. 8(A)).

The air nozzle An in the present invention is connected to the air nozzle base 6 and used as an air nozzle unit (see Fig. 9). Specifically, a plurality of air nozzles An is attached to the air nozzle base 6 and used. In addition, the air nozzle unit is assembled to the frame body 7 of the air jet drying system (see Fig. 10). The frame body 7 of the air jet drying system is provided with a blower 8. The said blowing part 8 produces compressed air, such as an electric compressor, and the air nozzle An attached to the said air nozzle base 6 through the air nozzle base 6 from the said blowing part 8 Compressed air is supplied to (see Fig. 9).

The air nozzle base 6 has a base body 61, an air inlet 62, an air supply port 63, an air chamber 64, and a mounting portion 65 (see Fig. 9). The base body 61 is formed in a substantially case body shape, and has an air chamber 64 through which compressed air flows. The air nozzle unit consisting of a plurality of air nozzles An and the air nozzle base 6 is positioned at a predetermined position of the frame body 7 of the air spray drying system through the mounting portion 65 of the air nozzle base 6. It is installed.

It is attached to the drying work area through fixing holes such as bolts and nuts. The base body 61 has a flat mounting surface portion 61a to which the air nozzle An is connected, and one or two or more air supply ports 63 are provided in the mounting surface portion 61a. Yes (see Fig. 9(B)). Further, in the rear portion 61b of the base body 61, an air inlet 62 through which compressed air is introduced is provided.

Then, the compressed air flows into the air chamber 64 from the air inlet 62 of the base body 61 by the air blower 8, and further, from the air chamber 64 to the air supply port 63 Compressed air flows and flows into the air flow path 31s from the air inlet 31d of the rotating body A2 of the air nozzle An. In addition, compressed air in the air flow path 31s flows into the injection pipe part 41, and air is ejected from the tip injection port 41c in an inclined manner with respect to the axial center line L, and the rotating body A2 automatically rotates. Perform the action. While the rotating body A2 performs an automatic rotation operation, the air (air) injected from the injection pipe part 41 can blow away foreign matter such as moisture, oil, cutting powder, etc., such as the cleaning liquid adhering to the product 9. have.

In the air jet drying system, the conveyance part 71 is attached to the frame body 7. The conveyance part 71 is a conveyance drive part 71a which is arrange|positioned along the direction from the conveyance entrance side of the frame body 7 toward the conveyance exit side, and the conveyance platform 71b which moves by the said conveyance drive part 71a. It is composed by. The conveyance drive unit 71a is, for example, a conveyor or the like, and is driven by electric power such as a motor. The air nozzle unit is installed so as to surround the vertical direction and the left and right (width) directions of the conveying unit 71 by looking at the conveyance inlet side of the air jet drying system from the front.

In addition, the air nozzle unit positioned above the conveying unit 71 can be positioned in the vertical direction, and the air nozzle units mounted on both left and right sides of the conveying unit 71 can adjust the spacing in the left and right directions. have. When performing drying (also referred to as washing) of the product 9 by blowing away foreign matter such as moisture, oil, or cutting powder, such as a cleaning liquid adhered to the product 9, the frame of the air spray drying system It moves by the conveyance part 71 attached to the sieve 7.

The product 9 placed on the conveyance table 71b of the conveyance part 71 is conveyed to the mounting location of the air nozzle unit, and from there, the upper side, the lower side, the left side of the conveyance part 71, and Each air nozzle on the upper side, lower side, left and right side in the process of passing through the drying work area the conveyance table 71b on which the product 9 was placed with the installation location of the air nozzle unit installed on the right side as the drying work area. By blowing air from (An), the cleaning liquid adhered to the product 9 and foreign matter, dust or grease that could not be removed in the entire process are blown away, and the product 9 is dried. In addition, in some cases, washing may be performed together with drying.

In addition, in the air nozzle An, when the rotating main body A2 is operated, in the void chamber S formed by the opening 2a of the cylindrical housing portion 2 and the disk portion 5, the injection pipe portion The flow of air (air) injected from the tip injection port 41c of (41) is in a turbulent state. In addition, the air ejection from the injection pipe part 41 in the void chamber (S) and the flow of air (air) in the turbulent state described above are mixed with each other to generate a more active and complex air flow. It is possible to very efficiently perform cleaning by drying and removing foreign matters such as liquids such as adhering cleaning liquids, oils or cutting powders.

An… Air nozzle, A1… Fixed body, A2... Rotating body, 1... Fixed base portion, 11b... Cylindrical penetration, 2... Cylindrical housing part, 3... Rotating base part, 31s... Air flow path, 41... Injection pipe part, 42... Control pipe part, 5... Disc, 51... Injection hole, 44... Balance weight, L… Axis line.

Claims (5)

A cylindrical housing portion with an open end in the axial direction,
A fixed body connected to the other end of the cylindrical housing portion in the axial direction and having a fixed base portion having a cylindrical penetrating portion formed therein,
A rotating base portion in which an air flow path is formed,
An injection pipe part that is attached to the rotation base and follows the rotational direction of the rotational base and the air injection direction is inclined with respect to the axis of the rotational base;
A control pipe portion having the same number and the same shape as the injection pipe portion, and inclined in the air injection direction of the injection pipe portion and the injection direction opposite to the axial center line;
And a rotating body having an injection hole portion through which each tip of the injection pipe portion and the control pipe portion is inserted, and having a disk portion mounted on the rotating base,
The inclination angle of the air injection direction from the tip of the injection pipe portion is variable, and the injection pipe portion is configured to be fastened and fixed to a desired position and released,
The control pipe part, the inclination angle with respect to the axial center line is variable, and the control pipe part enables fastening and fixing and release,
An air nozzle, characterized in that the rotational propulsion force of the injection pipe portion and the rotational control force of the control tube portion are set in opposite directions, and the rotational propulsion force is set to be greater than the rotational control force. The method according to claim 1,
An air nozzle, characterized in that the injection pipe portion and the control pipe portion are constituted by two, respectively. The method according to claim 1 or 2,
An air nozzle, characterized in that the injection pipe portion and the control pipe portion are arranged at equal intervals along the circumferential direction of the rotation base portion. The method according to claim 1 or 2,
The air nozzle, characterized in that the two injection pipe portions are positioned on both sides in the radial direction of the rotating base portion, and the control pipe portion is configured to be at a position orthogonal to both of the injection pipe portions. The method according to any one of claims 1 to 4,
An air nozzle, characterized in that the variable range of the inclination angle of the control pipe part is made from 0 degrees to 20 degrees with respect to the axis center line.

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