JP3001225U - Nozzle for suction of powder - Google Patents

Abstract

(57) [Summary] [Purpose] To improve the suction efficiency of powder and granules. [Structure] Has a double-tube structure consisting of an inner tube and an outer tube 10, and penetrates from the tip of the inner tube to the root to form a suction passage for powder and granules.
The space between the inner pipe and the outer pipe forms the outside air supply passage. The outside air supply port 16 is located at the base side of the outside air supply passage, and the tip side thereof is closed by the suction mouthpiece 12. A plurality of through holes are provided in the peripheral wall on the front end side of the inner pipe, and the outside air supply passage and the suction passage in the inner pipe are connected by the through holes. The outside air supply port 16 is provided with an adjusting screw member 15 to adjust the amount of outside air supplied.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a nozzle used when sucking a powder or granular material with a suction device.

[0002]

[Prior art]

 A conventional suction nozzle is configured so that a suction passage for sucking powder particles penetrates from the tip of the tubular main body to the root, and the root of the nozzle is sucked by a suction device. It was connected to a pipe, the tip of the nozzle was inserted into the powder in the container, and the suction device was activated to suck the powder.

[0003]

[Problems to be solved by the device]

 In the conventional nozzle, the suction efficiency is not necessarily good because it has only the structure of the suction cylinder. In addition, there are various types of powder particles to be sucked, such as powder particles having a very small particle size and powder particles having a low specific gravity, to particles particles having a large particle size and particles having a high specific gravity. In Le, it was not possible to say that suction was performed in an appropriate suction state for all of these various types of powder. Then, this invention makes it the subject to provide what can suck | pulverize a granular material more efficiently than the suction by the conventional suction nozzle. Further, it is also an object to provide a nozzle capable of adjusting the suction state depending on the difference in particle size and specific gravity of powder particles.

[0004]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, a first invention of the present application relates to a powdery or granular material suction nozzle having a suction passage for penetrating a powdery or granular material from a tip to a root portion of the tubular body. An outside air supply passage 25 is provided on the outer periphery of the outside air supply passage 25, and the outside air supply port 16 is located on the nozzle root side of the outside air supply passage 25, while on the other hand, the outside air supply passage 25 is provided on the peripheral wall of the tubular body on the nozzle tip end side. Provided is a suction nozzle in which a suction passage 21 for powder and granules and an outside air supply passage 25 are connected through a through hole 23. In addition to the above configuration, the suction nozzle according to the second invention of the present application is provided with the adjusting means for adjusting the supply amount of the outside air at the outside air supply port 16.

A third invention of the present application is the suction nozzle according to the first or second invention, wherein the particulate suction nozzle comprises two pipes, an outer pipe 10 and an inner pipe 20 penetrating both ends. The inner pipe 20 has a double pipe structure, and the portion from the tip of the inner pipe 20 to the base portion constitutes the above-mentioned suction passage 21, and the space between the outer pipe 10 and the inner pipe 20 is the above. Of the outer pipe 10 and the inner pipe 20 are closed, and a through hole 23 is formed in the peripheral wall of the inner pipe 20 on the root side of the closed end. A section on the tip side of the through hole 23 is defined as a suction preliminary chamber 30, and the suction preliminary chamber 30 is closed with an open front end 31 and a base end 32 continuous with the suction passage 21 in the inner pipe 20. The through hole 23 is formed in the circumferential direction of the circumferential wall of the inner pipe 20. In addition, the present invention provides a product characterized by being formed substantially uniformly. In addition, the through holes 23 are formed substantially evenly in the circumferential direction of the peripheral wall of the inner pipe 20. A plurality of through holes 23 are provided at substantially equal intervals in the circumferential direction, or a single through hole 23 is formed. This includes the case where it is provided all around.

[0006]

[Action]

 In the first invention of the present application, the powdery particles to be sucked are sucked from the suction port of the pipe body, but the powdery granules are removed from the through hole 23 provided in the portion of the peripheral wall of the pipe body adjacent to the edge of the suction port. The air is also sucked, and the powder is sucked in a state of being mixed with the outside air. As a result, the powder particles are smoothly sucked, and the suction efficiency is improved. In the second invention of the present application, the size of the outside air supply port 16 can be adjusted by adjusting the particle size and the specific gravity of the powder particles to be sucked. That is, if the particle size is small or the specific gravity is small, the outside air supply port 16 is widened. On the other hand, if the particle size is large or the specific gravity is large, the outside air supply port 16 is narrowed to adjust the powder. It is possible to improve the efficiency of suction of particles.

The third invention of the present application has a double pipe structure including two pipe portions, an outer pipe 10 and an inner pipe 20 that penetrates both ends, and has a single pipe in appearance. Therefore, it is easy to handle, and the resistance when it is inserted into the granular material can be minimized. Then, air is guided into the inner pipe 20 through the through hole 23, and the powder is satisfactorily sucked by the flow of the air. At that time, in the third invention of the present application, the inner pipe 2 A through hole 23 is formed at the root side of the closed tip in the peripheral wall of No. 0, and the suction preliminary chamber 30 on the tip side is continuous with the opened tip 31 and the suction passage 21 in the inner pipe 20. Since it has the base end 32 and the closed peripheral wall 33, all the air from the through hole 23 is guided into the inner pipe 20 without waste and flows to the root side thereof. Since the powder particles are present in the closed peripheral wall 33 in the suction preliminary chamber 30, the powder particles can comfortably ride on the air flow, and good suction is realized. Moreover, since the through holes 23 are formed substantially evenly in the circumferential direction of the circumferential wall of the inner pipe 20, the above-described action is exerted evenly in the entire circumferential direction of the nozzle.

[0008]

【Example】

 An embodiment will be described below with reference to the accompanying drawings. FIG. 1 is an overall front view of an embodiment of the present invention, in which a nozzle main body has a double pipe structure composed of two pipes. Reference numeral 10 denotes an outer tube having a circular tubular shape, and although not shown in this figure, an inner tube is arranged with a space provided inside the outer tube 10. The space between the outer pipe and the inner pipe serves as an outside air supply passage. The left end in the figure is a suction port 11 for sucking the powder or granular material. The space between the inner tube and the outer tube 10 at the portion of the suction port 11 is closed by a suction port base 12. The root portion 13 of the nozzle on the right side of the drawing can be connected to a suction pipe or the like of a suction device. Reference numeral 15 denotes an adjusting screw member for supplying outside air. By tightening the adjusting screw member 15, the outside air supply port 16 becomes narrower, and conversely it becomes wider. The outside air supplied from the outside air supply port 16 passes through the space between the inner pipe and the outer pipe 10, that is, the outside air supply passage, and penetrates through the inner pipe on the suction port 11 side of the granular material. The powder is supplied from the holes into the suction passage of the powdery particles in the inner tube.

FIG. 2 is an explanatory cross-sectional view of the root side of the nozzle of the present invention. Reference numeral 20 denotes an inner tube, and the inside thereof serves as a suction passage 21 for the granular material, and the granular material passes through the opening 22 on the right side in the figure (in the direction of the arrow in the figure). A space is provided between the outer pipe 10 and the inner pipe 20, and this space serves as an outside air supply passage 25. When suction is started by connecting a suction device to this nozzle, outside air can be supplied from the outside air supply port 16 into the outside air supply passage 25. Further, by tightening or loosening the adjusting screw member 15 provided at the outside air supply port 16, the width of the opening of the outside air supply port 16 is defined, and the amount of outside air supplied is adjusted. .

FIG. 3 is a cross-sectional explanatory view of the tip side of the nozzle of the present invention. The tip of the outside air supply port 25 between the inner pipe 20 and the outer pipe 10 is closed by the suction mouthpiece 12. A through hole 23 is formed near the edge of the suction port 11 of the inner pipe 20. In this embodiment, four inner pipes 20 are provided at equal intervals in the circumferential direction. Therefore, the outside air supplied from the outside air supply port 16 can pass through the outside air supply passage 25, the through hole 23, and the suction passage 21 inside the inner pipe 20. In this way, the granular material is mixed with the outside air flowing from the through hole 23 of the inner tube 20 and sucked from the suction port 11 at the tip of the nozzle.

A section between the through hole 23 in the peripheral wall of the inner tube 20 and the suction port 11 at the tip of the nozzle is a preliminary suction chamber 30. This suction preparatory chamber 30 has an open tip 31, a base end 32 that is continuously open to the inner tube 20, and a closed peripheral wall 33. Due to the above-described action, good suction is realized. To do. In this embodiment, the closed peripheral wall 33 of the suction preparatory chamber 30 is composed of the peripheral wall of the inner pipe 20, but may be composed of a member separate from the inner pipe.

Although one embodiment has been described above, the size, shape, material, etc. of each component can be arbitrarily designed. For example, the distance between the inner pipe 20 and the outer pipe 10 can be appropriately set as necessary, and the number of through holes 23 provided on the suction port 11 side of the inner pipe 20 is 4 or less, or 4 It may be more than one. Also, the position of the outside air supply port 16 can be provided at any position on the base side of the main body, that is, if the outside air can be sucked in when the nozzle is inserted into the granular material. Good. Further, in the above embodiment, the nozzle main body is constituted by the double pipe, but the present invention can be implemented even if it is not necessarily the double pipe, and the passage which can supply the outside air to the outer circumference of the inner pipe. Should be provided. For example, a pipe-shaped one having one end as an outside air supply port may be connected to the through hole 23 on the tip end side of the inner pipe 20.

[0013]

[Effect of device]

 According to the first invention of the present application having the above-described configuration, when sucking the powder or granules, the powder or granules can be mixed with the outside air and sucked, so that the suction efficiency is particularly improved as compared with the conventional one. I was able to raise it. In the second invention of the present application, by adjusting the amount of the supplied outside air by the adjusting screw member for supplying the outside air, it is possible to select the amount of the outside air that is most suitable for the particle size and the specific gravity of the powder particles to be sucked. Therefore, it is possible to adjust to the most efficient suction state. In the third invention of the present application, since it is a single tube in appearance, it is easy to handle, and the resistance when it is inserted into the powder or granular body can be minimized. In addition, air is introduced into the inner pipe from the through hole, and the powder particles are satisfactorily sucked by this air flow, but all the air from the through hole is introduced into the inner pipe without waste, and Flowing to the side. Further, since the powder particles are present in the closed peripheral wall of the suction preliminary chamber, the powder particles can comfortably ride on the air flow, and good suction is realized. Furthermore, since the through holes are formed substantially evenly in the circumferential direction of the circumferential wall of the inner tube, the above-described action is exhibited evenly throughout the circumferential direction of the nozzle. As described above, the present invention has an extremely great effect.

[Brief description of drawings]

FIG. 1 is an overall front view of an embodiment of the present invention.

FIG. 2 is a cross-sectional explanatory view of the root side of an embodiment of the present invention.

FIG. 3 is a cross-sectional explanatory view of the tip side of the embodiment of the present invention.

[Explanation of symbols]

10 outer tube, 11 suction port, 15 adjusting screw member, 16
Outside air supply port, 20 Inner tube, 21 Suction passage, 23 Through hole, 25 Outside air supply passage, 30 Suction preliminary chamber, 31
Tip, 32 base, 33 peripheral wall

Claims (3)

[Scope of utility model registration request] 1. A powdery or granular material suction nozzle having a suction passage for sucking powdery or granular material extending from the tip to the root of the tubular body, wherein an outside air supply passage (25) is provided on the outer periphery of the tubular body. , The outside air supply port (1
6) is located, on the other hand, on the nozzle tip side of the outside air supply passageway (25), the suction passageway (21) for the granular material and the outside air supply passageway (25) are passed through the through hole (23) provided in the peripheral wall of the pipe body. Nozzle for powder and granular material suction, characterized in that and are connected. 2. The nozzle for sucking powdery particles according to claim 1, wherein the outside air supply port (16) is provided with an adjusting means for adjusting the amount of outside air supplied. 3. The powder / granule suction nozzle has a double pipe structure composed of two pipe portions, an outer pipe (10) and an inner pipe (20) penetrating both ends, and the inner pipe ( From the tip of 20) to the root portion constitutes the suction passage (21), and the space between the outer pipe (10) and the inner pipe (20) forms the outside air supply passage (25). The end of the space between the outer pipe (10) and the inner pipe (20) is closed, and the through hole (23) is formed in the peripheral wall of the inner pipe (20) closer to the root than the closed end. ) Is formed, and a section on the tip side of the through hole (23) is set as a suction preliminary chamber (30), and the suction preliminary chamber (30) is formed by the opened tip (31) and the inner pipe (20).
It has a proximal end (32) continuous to the suction passage (21) inside and a closed peripheral wall (33), and the through hole (23) is the circumferential direction of the peripheral wall of the inner pipe (20). 3. The powder / granule suction nozzle according to claim 1, wherein the powder / granule suction nozzle is formed substantially evenly.