KR200444047Y1 - Air knocker - Google Patents

Abstract

The present invention, despite the reciprocating operation of the striking piston in the cylinder body, the damage of the components can be kept to a minimum, so that the durability life can be significantly increased, and the maintenance and repair of the internal components can be made easily It relates to an air knocker.

Air knocker according to the present invention, the lower end is provided with a first flange for the installation as a base plate on the powder tank or the powder transfer pipe passage, the upper end is provided with a second flange, the first step and the second step A cylinder body having a through space provided therein, a coil spring having a lower end supported on the first step of the cylinder body, and installed in a through space of the cylinder body so as to be movable, It is supported so as to be biased, and the lower side is provided with a striking hammer and a ventilation hole for communicating the upper side and one side, and a resin bearing member installed on the second step of the cylinder body to guide the movement of the striking piston and Is coupled to the second flange of the cylinder body and communicates with the through space in accordance with the operation of the diaphragm therein The chamber body is provided with an air chamber, and connected to the chamber body and provides compressed air to the striking piston through the air chamber of the chamber body so that the striking piston hits the base plate and after striking the base plate And an intake and exhaust unit for discharging the compressed air to the outside so that the striking piston is returned to its original position by the elasticity of the coil spring.

Air knocker, powder tank, powder conveying line, cylinder body, coil spring, striking piston, resin bearing member, chamber body, diaphragm, intake and exhaust unit

Description

Air Knocker {AIR KNOCKER}

The present invention relates to an air knocker, and more specifically, is installed on a powder tank or a powder conveying pipe path such as a silo, a hopper, a cyclone, and a wall of a powder tank or a powder conveying pipe path. The present invention relates to an air knocker designed to prevent powder from adhering to the inner wall of a powder tank or a powder conveying pipe path by applying vibration by striking it.

Generally, a silo for storing and transporting granules, such as feed, has a problem that the granules are attached to an inner wall of a powder tank or a hopper or cyclone such that the function is degraded. An air knocker is installed on the outer wall of the powder tank to prevent the attachment of the powder by striking the base plate on the powder tank or the powder conveying path with a high pressure hammer.

1A and 1B show a structural diagram of an air knocker according to the prior art.

Air knocker 100 according to the prior art, as shown in Figures 1a and 1b, the lower end is provided with a first flange 111 for installation to the base plate (3) on the powder tank or the powder conveying conduit It is provided with a second flange 113, the inside of the cylinder body 110 is formed with a through space 115 is provided with a step 117, and the lower end of the step 117 of the cylinder body 110 Coil spring 120 that is supported and installed, the striking piston 130 which is installed to be movable in the through space 115 of the cylinder body 110 and supported by the coil spring 120 so as to be biased upwards, and the cylinder A chamber main body 150 coupled to the second flange 113 of the main body 110 and having an air chamber 157 in communication with the through space 115 according to the operation of the diaphragm 155, and a chamber main body. It is connected to the 150 and through the air chamber 157 of the chamber body 150 to the striking piston 130 By providing compressed air, the striking piston 130 hits the base plate 3 and discharges the compressed air to the outside after the striking of the base plate 3 so that the striking piston 130 is elastic due to the elasticity of the coil spring 120. As it comprises the intake and exhaust unit 160 to be in place, the striking piston 130 supported by the coil spring 120 in the cylinder body 110 periodically from the intake and exhaust unit 160 through the air chamber 157 While moving downward by the compressed air provided by the hitting the base plate (3) on the wall of the powder tank or the powder transfer pipe is formed in a structure that is returned to its original position by the elasticity of the coil spring (120).

However, since the air knocker 100 is made of the cylinder body 110 and the striking piston 130 is made of metal, when the striking piston 130 is reciprocated along the through space 115 of the cylinder body 110 and mutually As the inner wall and the striking piston 130 of the cylinder body 110 are damaged by friction, there is a problem that the durability life is significantly shortened.

In addition, when the striking piston 130 is moved by compressed air, the air in the cylinder body 110 is formed between the air flow hole 119 and the cylinder body 110 and the striking piston 130 formed on the side of the cylinder body 110. It flows through the gap, in particular, when the vacuum is formed inside the air chamber 157 during the return of the blown piston 130 due to the exhaust of the compressed air inside the air chamber 157 and the elasticity of the coil spring 120 The piston 130 causes an excessive impact on the chamber body 150, and as a result, the chamber body 150 or the striking piston 130 is damaged and the durability thereof is significantly shortened.

In addition, as the cylinder body 110 and the chamber body 150 are fastened to the base plate 3 by the same fastening member 170, there is a problem that the maintenance and repair of the internal components thereof are not easy.

It is an object of the present invention to provide an air knocker in which damage to a component can be kept to a minimum in spite of the reciprocating operation of the striking piston in the cylinder body so that its durability life can be significantly increased.

Another object of the present invention is to provide an air knocker which enables easy maintenance of internal components.

The object of the present invention described above, the lower end is provided with a first flange for the installation of the base plate on the powder tank or the powder transfer pipe passage, the upper end is provided with a second flange, the first step and the second step A cylinder body having a through space provided therein, a coil spring having a lower end supported on the first step of the cylinder body, and installed in a through space of the cylinder body so as to be movable, It is supported so as to be biased, and the lower side is provided with a striking hammer and a ventilation hole for communicating the upper side and one side, and a resin bearing member installed on the second step of the cylinder body to guide the movement of the striking piston and Is coupled to the second flange of the cylinder body therein is in communication with the through space in accordance with the operation of the diaphragm A chamber main body having an air chamber and connected to the chamber main body to provide compressed air to the striking piston through the air chamber of the chamber main body so that the other cladding piston strikes the base plate and after the striking of the base plate. It is achieved by providing an air knocker comprising an intake and exhaust unit for discharging the compressed air to the outside so that the striking piston is in place by the elasticity of the coil spring.

According to a preferred feature of the present invention, the chamber body, a first annular projection having a first through-hole is formed in the upper center and the first annular groove for forming the air chamber is formed on the outer peripheral surface of the first annular projection A lower chamber member, and a second through hole is formed at the lower center thereof, and has a second inner protrusion having an inner diameter larger than the outer diameter of the first annular protrusion, and having a diaphragm installed therein so as to be movable upward and downward. The outer circumferential surface of the annular protrusion includes an upper chamber member having a second annular groove forming the air chamber together with the first annular groove, and detachably coupled to the second flange of the cylinder body by a fastening member. do.

According to a more preferable feature of the present invention, the intake and exhaust unit, an air compressor for providing compressed air, a connecting pipe for connecting the air compressor and the second through hole of the chamber body, and is installed on the connecting pipe and compressed And an intake and exhaust valve for controlling intake and exhaust of air, and a controller for controlling the operation of the air compressor and the intake and exhaust valve.

According to a more preferable feature of the present invention, the resin bearing member is molded and manufactured of monomer cast nylon (MC Nylon) resin, it is installed replaceably on the second step of the cylinder body.

According to the air knocker according to the present invention, since the resin bearing member is provided in the cylinder body, damage to the cylinder body and the striking piston due to the friction between the conventional metals can be prevented, and even if the striking piston is in close contact with the resin bearing member, It is possible that the pressure of the compressed air can be transmitted without loss, and in particular, as the resin bearing member is installed interchangeably, there is an excellent effect of greatly improving the overall durability life.

In addition, when compressed air is exhausted after striking the striking piston, a vacuum is conventionally formed in the air chamber, and the striking piston causes a considerable impact on the chamber body. However, according to the air knocker according to the present invention, the air through the vent of the striking cylinder As it flows into the air chamber, the impact on the chamber body is reduced to the minimum when the striking piston is in the original position, thereby having an excellent effect of significantly improving the overall durability life.

In addition, although the cylinder body and the chamber body are conventionally fastened to the base plate by the same fastening member, according to the air knocker according to the present invention, the fastening member and the chamber body fixing the cylinder body to the base plate are fixed to the cylinder body. As the fastening member is separately formed, the chamber body is separated from the cylinder body, and thus the internal component can be easily repaired and checked.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, which are intended to explain in detail enough that a person skilled in the art can easily carry out the present invention. This does not mean that the technical spirit and scope of the present invention is limited.

Figure 2a is an overall structural diagram of the air knocker according to the present invention, Figure 2b is a cross-sectional structural view of the air knocker according to the present invention, Figure 3 is an exploded perspective view of the air knocker according to the present invention.

In the air knocker 1 according to the present invention, despite the reciprocating operation of the striking piston in the cylinder body, the damage to the components can be kept to a minimum, so that the durability life can be greatly increased, and the inspection of the internal components To facilitate the maintenance, as shown in Figures 2a to 3, the lower end is provided with a first flange 11 for installation to the base plate (3) on the powder tank or the powder conveying pipe line It is provided with a second flange 3, the cylinder body 10 and the cylinder body 10 is formed therein through-space 15 is provided with a first step 17 and the second step 18 The lower end is supported on the first step 17 of the coil spring 20 and installed in the through space 15 of the cylinder body 20 so as to be movable and the carbon spring biased upwards by the carbon spring 20 Is supported, and underneath The blower piston 30 is provided with a hammer 31 and a ventilation hole 33 communicating with one side of the upper end thereof is formed, and the second step 18 of the cylinder body 10 is installed on the blow piston 30 of the An air chamber 57 coupled to the resin bearing member 40 for guiding movement and the second flange 13 of the cylinder body 10 and communicating therewith with the through space 15 in accordance with the operation of the diaphragm 55. ) Is provided with a chamber body 50, connected to the chamber body 50, and provides compressed air to the blow piston 30 through the air chamber 57 of the chamber body 50, the blow piston 30 is the base It comprises an intake and exhaust unit 60 to strike the plate 3 and discharge the compressed air to the outside after hitting the base plate 3 so that the striking piston 3 is in place by the elasticity of the coil spring (20). .

Here, the cylinder body 10 is a cylindrical sleeve for guiding the reciprocating motion of the striking piston 3 at the same time as forming a frame for coupling to the base plate 3 on the powder tank or the powder conveying pipe passage, the lower end of the fastening member ( 5) is provided with a first flange (11) coupled to the base plate (3) on the powder tank or the powder conveying pipe path and a second flange (180) coupled to the chamber body (50) by a fastening member (59) at the upper end thereof. 13 is provided, a through space 15 is formed therein to be able to reciprocately move the striking piston 30, and the inner circumferential surface forming the through space 15 to support the coil spring 20 The step 17 is formed on the lower side, and the second step 18 is formed on the upper side of the first step 17 to which the resin bearing member 40 is detachably coupled. In addition, one side of the cylinder body 10 is formed with a communication hole 19 for communicating the through space 15 and the outside,

The cylinder body 10 is manufactured by the processing of a metal material and is preferably electroless plated to prevent corrosion by air, water, and other solvents.

The lower end of the coil spring 20 is installed on the first step 17 of the cylinder body 10, and the coil spring 20 contracts upon pressurization of the striking piston 30 according to the provision of compressed air. After the strike of the striking piston 30 against the base plate (3) to provide an elastic restoring force for returning the striking piston 30 to its original position, it is formed of a common metal coil spring.

In the through space 15 of the cylinder body 20 described above, the striking piston 30 is installed to be movable. The striking piston 30 is moved downward while being pressurized every time inflow of compressed air, and the lower end thereof has a powder tank. (B) It prevents powder powder from adhering to the inner wall of the powder tank or the powder transport pipe path by striking the base plate 3 on the powder transport pipe path, and exhausts the compressed air and the coil spring after the blow of the base plate 3. It is moved upward by the elasticity of the back to the original position, and is supported by the coil spring 20 so as to be biased upwards, the lower side is made of synthetic resin material to prevent damage to the base plate (3) during the impact The striking hammer 31 is replaceably coupled by screwing or the like.

Blowing piston (30) is formed with a ventilation hole 33 to communicate the upper side and one side, the ventilation hole 33 is the exhaust piston and the coil of the compressed air after the impact piston 30 hit the base plate (3) In the case where the spring 20 is moved upward by the elasticity of the spring 20, the air in the through space 15 is provided to the air chamber 57, thereby preventing the air chamber 57 from being vacuumed by the exhaust of the compressed air. The impact piston 30 serves to prevent excessively hitting the chamber body 50 when the original return. The return speed of the striking piston 30 may be adjusted by adjusting the diameter of the vent hole 33.

The resin bearing member 40 is installed at the second step 18 of the cylinder body 10 described above, and the resin bearing 40 acts as a solid lubrication member, and thus strikes the piston in the cylinder body 10. 30) It is preferable to be molded and manufactured with a monomer cast nylon (MC Nylon) resin that exhibits excellent solid lubrication characteristics when the heat resistance and wear resistance is excellent if the role of guiding the movement of.

In addition, the resin bearing member 40 is installed on the second step 18 of the cylinder body 10 through the separation and coupling of the chamber body 50, so that the durability of the entire air knocker 1 according to the present invention. It is preferable that it is formed so that the lifetime can be increased.

The chamber body 50 is coupled to the second flange 13 of the above-described cylinder body 10, which chamber body 50 is compressed air to be provided to the striking piston 30 according to the operation of the intake and exhaust unit 60. Or a space for accommodating the compressed air pressurized by the striking piston 30 before exhausting therein, and an air chamber 57 communicated with the through space 15 in accordance with the operation of the diaphragm 55. do.

As shown in FIGS. 2B and 3, the chamber body 50 includes a lower chamber member 51 and an upper chamber member 53, and the fastening member 59 of the chamber body 10 may be used. It is detachably coupled to the second flange 13.

A first annular protrusion 51a having a first through hole 51b communicating with the through space 15 is formed at an upper center of the lower chamber member 51, and an air chamber is formed on the outer circumferential surface of the first annular protrusion 51a. A first annular groove 51c is formed to form a part of the 57, and an outer circumference of the first annular groove 51c is provided for the hermetic coupling of the lower chamber member 51 and the upper chamber member 53. 51d is provided.

In the center of the upper chamber member 53, a second through hole 53b communicating with the intake and exhaust unit 60 is formed, and at the lower surface thereof has an inner diameter that is larger than the outer diameter of the first annular protrusion 51a and the diaphragm therein. A second annular protrusion (53a) is formed that 55 is installed to be movable up and down, the outer peripheral surface of the second annular projection (53a) is formed with the first annular groove (51c) to form an air chamber (57) Two annular grooves 53c are formed.

The above-mentioned chamber body 50 is connected to the intake and exhaust unit 60, the intake and exhaust unit 60 provides the compressed air to the blow piston 30 through the air chamber 57 of the chamber body 50 blow piston 30 to hit the base plate 3 and discharge the compressed air to the outside after hitting the base plate 3 so that the striking piston 3 is in place by the elasticity of the coil spring 20, Figure 2a As shown in the drawing, an air compressor 61 for providing compressed air, a connecting pipe 63 for connecting the second through hole 53b of the chamber body 50 and the air compressor 61, and a connecting pipe ( An intake / exhaust valve (65) provided on the upper surface of the chamber body (50) and configured as a three-way valve that regulates the provision of compressed air into the chamber body (50) or the exhaust of compressed air into the atmosphere; and an air compressor (61) and an intake / exhaust valve ( And a controller 67 for controlling the operation of the controller 65.

4A to 4D show the operation of the air knocker 1 according to the present invention. Hereinafter, the operation of the air knocker 1 according to the present invention with reference to Figures 2a to 4d as follows:

In the steady state, the striking piston 30 is located above the through space 15 of the cylinder body 10. In this state, the air compressor 61 is operated so that the compressed air flows into the second through hole 53b of the chamber body 50 through the connection pipe 63, and the compressed air thus introduced is shown in FIG. 4A. Likewise, it is accommodated in the air chamber 57 of the chamber body 50.

At the end of the provision of the compressed air, if the air compressor 61 is operated in reverse and a vacuum is generated in the connecting pipe 63, as shown in FIG. 4B, the diaphragm 55 is moved upward by the vacuum suction input. Compressed air accommodated in the 57 to press the striking piston 30 through the first through hole 51b of the chamber body 50 to move downward. At this time, the air in the through space 15 is discharged to the outside through the communication hole (19).

The striking piston 30 is lubricated and moved by the resin bearing member 40 installed on the inner wall of the cylinder body 10. As a result, the cylinder body 10 and the striking piston 30 are damaged by friction between the conventional metals. This can be prevented, even if the hitting piston 30 is in close contact with the resin bearing member 40 can be moved so that the pressure of the compressed air can be delivered to the hitting piston 30 without loss, thereby significantly improving the overall durability life. It becomes possible.

As a result, as shown in Fig. 4c, the lower hammer hammer 31 strikes the base plate 3 to generate periodic vibrations in the powder tank or the powder conveying line, thereby preventing the powder from adhering to the inner wall thereof. Can be.

After hitting the base plate 3, as shown in FIG. 4D, as the compressed air is exhausted to the atmosphere through the intake and exhaust valve 65 by the operation of the intake and exhaust unit 60, the striking piston 30 is coil spring. It is raised by the elastic restoring force of (20), and is returned to original position.

When the compressed air is exhausted into the atmosphere through the intake and exhaust valve 65, the air chamber 57 is vacuumed to give the impact piston 30 a considerable impact on the chamber body 50, but in the present design, the blow cylinder 30 As air flows into the air chamber 57 through the vent hole 33 of the), the impact on the chamber body 50 at the time of the return of the striking piston 30 can be reduced to a minimum, thereby greatly improving the overall durability life. Will be.

In addition, as the fastening member 5 for fixing the cylinder body 10 to the base plate 3 and the fastening member 59 for fixing the chamber body 50 to the cylinder body 10 are formed separately, the fastening member. By releasing the 59, the chamber body 50 can be separated from the cylinder body 10 to easily repair and inspect internal components such as the striking hammer 31, the resin bearing member 40, and the coil spring 20. have.

Figure 1a is an overall structure diagram of an air knocker according to the prior art.

Figure 1b is a partial cross-sectional view of the air knocker according to the prior art.

Figure 2a is an overall structural view of the air knocker according to the present invention.

Figure 2b is a partial cross-sectional view of the air knocker according to the present invention.

Figure 3 is an exploded perspective view of the air knocker according to the present invention.

4a to 4d is an operation of the air knocker according to the present invention.

Explanation of symbols on the main parts of the drawings

1: Air knocker according to the present invention

10: cylinder body

20: coil spring

30: blow piston

40: resin bearing member

50: chamber body

60: intake and exhaust unit

100: air knocker according to the prior art

Claims (4)

The lower cylinder is provided with a first flange for installation as a base plate on the powder tank or the powder conveying pipe line at the lower end, and the second flange is provided at the upper end, and a cylinder having a through space having a first step and a second step is formed therein. main body; A coil spring having a lower end supported on the first step of the cylinder body; A striking piston installed to be movable in the through space of the cylinder body and supported so as to be biased upward by the coil spring, and a striking hammer provided at a lower side thereof and a vent hole communicating with one side of the upper end thereof; A resin bearing member installed at a second step of the cylinder body to guide movement of the striking piston; A chamber body coupled to the second flange of the cylinder body and having an air chamber therein communicating with the through space according to an operation of a diaphragm; And It is connected to the chamber body and provides compressed air to the striking piston through the air chamber of the chamber body so that the striking piston strikes the base plate and discharges the compressed air to the outside after the striking of the base plate Air intake comprises a; intake and exhaust unit so that the piston is in place by the elasticity of the coil spring. The method according to claim 1, The chamber body includes: a lower chamber member having a first annular projection having a first through hole formed at an upper center thereof, and a first annular groove forming an air chamber at an outer circumferential surface of the first annular protrusion; It has a second through hole is formed and has a larger inner diameter than the outer diameter of the first annular projections therein is provided with a second annular projection in which the diaphragm is movable up and down and the outer peripheral surface of the second annular projections on the first And an upper chamber member having a second annular groove forming the air chamber together with the annular groove. Air knocker, characterized in that detachably coupled to the second flange of the cylinder body by a fastening member. The method according to claim 2, The intake and exhaust unit includes an air compressor for providing compressed air, a connection pipe connecting the air compressor and the second through hole of the chamber body, and an air intake and exhaust gas installed on the connection pipe to regulate intake and exhaust of the compressed air. And a controller for controlling the operation of the valve and the air compressor and the intake / exhaust valve. The method according to any one of claims 1 to 3, The resin bearing member is molded and manufactured of a monomer cast nylon (MC Nylon) resin, the air knocker, characterized in that replaceable installation on the second step of the cylinder body.

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