KR101499051B1 - Gun for applying material of suppressing vibration - Google Patents

Abstract

The present invention relates to a vehicle damping material application gun, and more particularly, to a vehicle damping material application method for automatically applying a vibration damping material applied on a floor panel of an automobile to a certain width and thickness in order to absorb vibration and noise It is about the thing.
That is, the present invention provides a damping material supply and discharge unit, a pneumatic actuator for providing a discharge pressure to the damping material, a nozzle unit and the like separably from each other to control discharge pressure of the damping material, It is possible to easily apply the vibration damping material as a flat stream type coating pattern to the vehicle body panel surface and to assemble and disassemble the spraying gun into a plurality of parts as well as the nozzle, The present invention provides an automotive anti-vibration material application method which can be easily performed.

Description

[0001] GUN FOR APPLYING MATERIAL OF SUPPRESSING VIBRATION [0002]

The present invention relates to a vehicle damping material application gun, and more particularly, to a vehicle damping material application method for automatically applying a vibration damping material applied on a floor panel of an automobile to a certain width and thickness in order to absorb vibration and noise It is about the thing.

Floor panels that make up the bottom of the car, and dash panels that separate the engine compartment from the driver's seat are coated with vibration damping material for vibration and noise absorption.

The vibration damping material is cut into pads having a certain area and thickness and applied to a floor panel and a dash panel or the like to thereby absorb and block vibrations and noise transmitted from an engine driving sound and a road surface during traveling to provide a comfortable indoor ride feeling, It is also one of the important parts that can prevent the deviation of the welded parts of the vehicle body and extend the life of various parts.

As an example of the prior art, the method of applying the vibration damping material has adopted a method of attaching the vibration damping material pads cut to a certain size and thickness directly to the floor panel and the dash panel by the operator, And the quality of the attachment of the vibration damper is not constant.

As another example of the prior art, Korean Patent Laid-Open Publication No. 2003-0028724 (2002.02.02) discloses an application nozzle mounted on a coating robot for spraying a viscous damping material, a damping material for feeding a damping material to the injection port of each application nozzle A vibration damping material applying device including a feeding means has been disclosed. However, in addition to not disclosing details of applying the vibration damping material, there are the following disadvantages.

First, since the nozzle attached to the nozzle unit body has a structure in which the damper supply hose is connected to the nozzle, there is a disadvantage that on / off operation control for damping material injection and shutoff is not possible and self injection pressure can not be formed.

Second, since the disassembly of the nozzle unit main body is impossible, it is impossible to repair the nozzle unit in response to contamination and malfunction.

Thirdly, since the shape of the nozzle is simply attached to the nozzle unit body, vibration and vibration of the nozzle may occur, so that the vibration damping material sprayed from the nozzle is not evenly applied to the predetermined application area.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to provide a damping material supply and discharge unit, a pneumatic actuator for providing a discharge pressure to the damping material, A vibration damping material application vehicle for automobiles, which is capable of easily applying a vibration damping material to a vehicle body panel surface in a flat stream type coating pattern by allowing pressure control, .

Another object of the present invention is to make it possible to assemble and disassemble the spray gun unit into a plurality of parts as well as the spray nozzle, so that replacement and maintenance of consumables can be facilitated.

According to an aspect of the present invention, there is provided a damping material supply manifold comprising: a damping material supply manifold having a damping material supply hole connected to damping material supply means; A gun body unit main body having a damping material transfer hole communicating with the damping material supply hole of the damping material supply manifold, the damping material transfer hole being formed in the lower end and the packing unit mounting space formed in the upper end thereof, An actuator unit detachably assembled to an upper surface of the gun body unit main body and exhibiting a lifting or lowering force; A nozzle unit detachably mounted on a bottom surface of the gun body unit main body and configured to receive a damping material transmitted from the damping material delivery hole and discharge the damping material to the vehicle body panel surface; A packing unit mounted in a packing unit mounting space of the gun body unit body to maintain airtightness between the actuator unit and the nozzle unit; An up-down rod connected to an upper end of the actuator unit to open a discharge port of the nozzle unit when the actuator unit performs the bellows force, and close the discharge port of the nozzle unit when the actuator unit performs the lowering force; The present invention also provides an automotive damping material application gun.

According to a preferred embodiment of the present invention, the actuator unit comprises: an actuator unit main body having a piston rising / falling space formed therein; A piston interposed between the upper and lower chambers so as to move upward and downward within the piston upward and downward space and to which the upper end of the lifting rod is coupled to the lower surface; A cover plate mounted on an upper surface of the actuator unit main body to seal the upper chamber of the piston lifting / lowering space; A first compressed air intake / exhaust port assembly mounted on a side surface of the actuator unit main body and communicating with the lower chamber; A second compressed air intake / exhaust device mounted on the cover plate and communicating with the upper chamber; A spring that is compressibly disposed between the bottom surface of the cover plate and the top surface of the piston; .

Preferably, the actuating unit main body is formed with a check window for confirming whether the lifting / lowering rod is moving up or down.

Particularly, a lock groove is formed at the upper end of the outer diameter of the lifting rod, and a lock projection is integrally formed at the center of the bottom surface of the piston to be engaged with the lock groove.

In the preferred embodiment of the present invention, the gun body unit main body includes a vibration damping material transfer hole formed in a horizontal direction, a packing unit mounting space formed in a vertical direction, and a space between the packing unit mounting space and the vibration damping material transfer hole And a guide hole through which the ascending / descending rod passes is formed.

According to a preferred embodiment of the present invention, the packing unit comprises: a packing housing inserted into a packing unit mounting space of a gun body unit body, the packing housing having a hollow hole formed in a vertically penetrating manner; An oil-free bush provided in a structure in which a first hole through which a lifting / lowering rod passes is inserted and inserted into a top end portion of a hollow hole of a packing housing; A spacer inserted in the hollow of the packing housing under the non-lubricated bush with a first seal interposed therebetween, the spacer having a second hole through which the ascending / descending rod passes; And a third hole through which the ascending / descending rod passes. The second seal is disposed below the spacer in the hollow of the packing housing. The bottom surface of the spacer is provided with a guide hole A scraper hermitically adhered to the periphery; .

Preferably, the outer surface of the packing housing is provided with a first O-ring, which is in close contact with an inner circumferential surface of the packing unit mounting space, and a second O-ring is mounted on the outer circumferential surface of the spacer in close contact with an inner circumferential surface of the packing housing .

The nozzle unit according to a preferred embodiment of the present invention includes: a vibration damping material discharge preparation hole communicating with the vibration damping material delivery hole at a central portion, which is vertically penetrated, and a nozzle holder mounting end is integrally formed on the bottom surface, A nozzle unit body detachably assembled to a bottom surface of the body unit body; A pair of nozzle holders respectively assembled to both sides of the nozzle holder mounting end of the nozzle unit main body; A nozzle fixed while being tightened by the pair of nozzle holders to finally discharge the vibration damper from the damper discharge preparation hole to the surface of the vehicle body panel; .

Preferably, a fitting groove is formed on the upper and lower surfaces of the nozzle holder mounting end, and an end of the inner surface of each nozzle holder is integrally formed with a fitting end to be inserted into the fitting groove.

In addition, a fastening end for tightening the nozzle is formed integrally with the lower end of the inner surface of the nozzle holder.

Particularly, the nozzle comprises: a first nozzle plate and a second nozzle plate which are provided in a semicircular block and are closely assembled to each other by a nozzle holder, wherein the first nozzle plate and the second nozzle plate, A final discharge port coinciding with the damping material discharge preparation hole is formed in the upper end portion and a damping material application port communicating with the final discharge port is formed in the lower end portion to form a fan-shaped space.

Preferably, a stopper is integrally assembled on both sides of the nozzle holder mounting end to block lateral flow of the nozzle including the first and second nozzle plates.

Through the above-mentioned means for solving the problems, the present invention provides the following effects.

First, since the vibration damper can be automatically applied to the surfaces of the floor panel and the dash panel of the vehicle, the working speed and quality of the damper application work can be improved as compared with the conventional manual work.

Secondly, by controlling the discharge pressure of the vibration damping material and allowing the discharge of the vibration damping material to be allowed and controlled, it is possible to easily apply the vibration damping material to the surface of the vehicle body panel in a flat stream type coating pattern.

Third, the manifold for supplying and discharging the damping material raw material and the gun body unit main body, the pneumatic actuator portion for supplying the damping material with the discharge pressure, the nozzle portion for applying the damping material to the panel, This allows for the provision of replacement maintenance and repairs for the consumables of each part.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a vehicle damping material application gun according to the present invention,
2 is an assembled perspective view showing a damping material application gun for an automobile according to the present invention,
FIG. 3 is a cross-sectional perspective view of a vehicle damping material application gun according to the present invention,
4 and 5 are a perspective view and a cross-sectional view showing an open operation state of a vibration damping material application gun for an automobile according to the present invention,
6 and 7 are a perspective view and a sectional view showing a closed operation state of a vibration damping material application gun for an automobile according to the present invention,
8 is a perspective view showing a state in which a vibration damper is applied by a vibration damper application gun for an automobile according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The present invention is based on the point that it is mounted on a robot and can automatically apply a vibration damper to the surfaces of floor panels and dash panels of a vehicle.

To this end, the damping material application gun of the present invention comprises a pump for supplying a damping material, a damping material supply means including a booster for controlling an initial supply pressure of the damping material and a constant amount discharge control, Link.

1 to 3, a part of the present invention, which is connected to the damping material supply means, is a damping material supply manifold 10, and a damping material supply manifold 10 A vertical damping material supply hole 12 for receiving the damping material supplied from the damping material supply means is formed.

The damping material supply manifold 10 is detachably assembled to the front face of the gun body unit body 20 and the vibration damping material supply manifold 10 is disposed inside the gun body unit body 20, A damping material transfer hole 21 communicating with the hole 12 is formed in the lower end and a packing unit mounting space 22 is formed in the upper end.

More specifically, in the inside of the gun body unit body 20, the vibration damping material transfer hole 21 is formed so as to communicate with the vibration damping material supply hole 12 of the vibration damping material supply manifold 10 in the horizontal direction And the packing unit mounting space 22 is vertically penetrated as a space for guiding the airtightness of the airtightness and raising and lowering of the up / down rod, which will be described later, and the packing unit mounting space 22 and the vibration damper transfer hole 21, A guide hole 23 through which the lifting rod 60 passes is formed.

At this time, a link arm 70 for connecting with the robot is connected to the back surface of the gun body unit main body 20.

Here, on the upper surface of the gun body unit main body 20, an actuator unit 30 for discharging and blocking the damping material by using air pressure is detachably mounted, and a lifting or lowering force for discharging and blocking the damping material .

The actuator unit 30 has a skeleton of an actuator unit main body 31 having a piston up and down space 32 formed therein and a piston 33 is installed in the piston up and down space 32 such that the piston 33 can move up and down.

More specifically, the piston 33 is placed in the piston lifting / lowering space 32 of the actuator unit main body 31 to move the piston lifting / lowering space 32 between the upper and lower housings 32-1 and 32- 2).

At this time, a lifting / lowering rod 60 of a certain length is attached to the bottom surface of the piston 33 so as to perform a function of discharging and shutting off the vibration damping material while moving up and down the piston while moving up and down.

That is, the lock projection 39 formed at the center position of the bottom surface of the piston 33 is fitted in the lock groove 61 formed in the outer upper end portion of the ascending / descending rod 60, And is integrally coupled to the bottom surface of the piston 33.

A cover plate 34 is mounted on the upper surface of the actuator unit main body 31 to seal the upper chamber 32-1 of the piston up and down space 32. [

Particularly, a first compressed air intake / exhaust device 35 communicating with the lower chamber 32-2 of the piston lifting / lowering space 32 is mounted on the side surface of the actuator unit main body 31, And a second compressed air intake / exhaust device 36 communicating with the upper chamber 32-1 is mounted.

At this time, a spring 37 is compressibly disposed between the bottom surface of the cover plate 34 and the upper surface of the piston 33.

Accordingly, when pneumatic pressure is supplied to the first compressed air intake and exhaust device 35, pneumatic pressure is applied to the lower chamber 32-2 of the piston up-and-down space 32 so that the piston 33 compresses the spring 37 At this time, the air in the upper chamber 32-1 is exhausted through the second compressed air intake and exhaust device 36, and the ascent and descent rod 60 The discharge port of the nozzle unit 40 is opened and the vibration damping material can be applied.

On the other hand, when pneumatic pressure is supplied to the second compressed air intake / exhaust port 36, pneumatic pressure is applied to the upper chamber 32-1 of the piston rising / falling space 32 to lower the piston 33, The air in the lower chamber 32-2 is exhausted through the first compressed air intake and exhaust device 35. As the rising and lowering rod 60 descends as described below, (40) is clogged and the vibration damping material is blocked.

A check window 38 for confirming whether the lifting rod 60 is lifted or lowered is formed on the front surface and the rear surface of the actuator unit main body 31, (The applied gun dry state in which the vibration damper can be applied) and the operation in which the piston 33 and the ascending / descending rod 60 descend together (the operation in which the application of the vibration damper is blocked Off state) can be confirmed through the check window.

On the other hand, in order to maintain the airtightness of the pneumatic pressure supplied to and discharged from the actuator unit 30 and the upward / downward guidance of the lifting / lowering rod 60 as described above, the packing unit mounting space 22 of the gun body unit body 20 The packing unit 50 is mounted.

The packing unit 50 is provided with a hollow hole 51-1 formed vertically through the packing body 50. The packing unit 50 includes a packing housing 51 inserted into a packing unit mounting space of the gun body unit body, A spacer 53, a scraper 54, and the like, in addition to an oil-free oil bush 52 having a hollow structure for raising and lowering the lifting / lowering rod 60,

The non-lubricating bush 52 is provided with a first hole 52-1 through which the lifting rod 60 passes, and is inserted into the upper end of the hollow hole of the packing housing 51. [

The spacer 53 is provided with a second hole 53-1 through which the ascending / descending rod 60 passes and is provided in the hollow of the packing housing 51 in the lower part of the non-lubricating bush, .

The scraper 54 is provided with a third hole 54-1 through which the ascending / descending rod 60 passes. The scraper 54 is provided at the lower side of the spacer 53 in the hollow hole of the packing housing 51, And the bottom surface thereof is tightly brought into close contact with the periphery of the guide hole 23 of the packing unit mounting space 22 of the gun body unit main body 20.

A first O-ring 58 is attached to the outer surface of the packing housing 51 to closely contact the inner surface of the packing unit mounting space 22 of the gun body unit body 20, A second O-ring (59), which is in close contact with the inner diameter surface of the packing housing (51), is mounted on the side surface of the packing housing (51) so that airtightness of the air pressure and leakage of the vibration damping material can be more easily prevented.

Here, a nozzle unit 40 is detachably mounted on the bottom surface of the main body unit body 20 to receive the damping material transferred from the damping material delivery hole 21 and discharge the damping material to the surface of the body panel.

The nozzle unit 40 is a means for substantially applying a damping material to the surface of the vehicle body panel and includes a vibration damping material discharge preparation hole 41 communicating with the damping material delivery hole 21 of the main body unit body 20 And a nozzle unit main body 43 having a structure in which a nozzle holder mounting end 42 shaped like a rail is integrally formed on the bottom surface of the nozzle unit main body 43 as a skeleton, Is detachably assembled to the bottom surface of the gun body unit body (20).

A pair of nozzle holders 44 for mounting nozzles 45 for discharging damping material are mounted on the front and back surfaces of the nozzle holder mounting end 42 of the nozzle unit main body 43, respectively.

That is, a fitting groove 42-1 is formed at the upper end of the nozzle holder mounting end 42, and the upper end of the nozzle holder 44 is inserted into the fitting groove 42-1 The fitting end 44-1 is integrally formed.

The fitting end 44-1 of the nozzle holder 44 is inserted into the fitting groove 42-1 of the nozzle holder mounting end 42 and then tightened with the bolt so that the nozzle holder 44 is inserted into the nozzle holder mounting end 42-1, And at the same time, the tightening end 44-2 integrally formed at the lower end of the inner surface of the nozzle holder 44 tightens and fixes the nozzle 45. [

Particularly, the nozzle 45 is fixed with its upper end tightened by a pair of nozzle holders 44, so that the vibration damper from the vibration damper discharge preparation hole 41 of the nozzle unit main body 43 is fixed to the surface of the vehicle body panel And serves as a final discharge.

The nozzle 45 has a semicircular plate shape and includes a first nozzle plate 46 and a second nozzle plate 47 which are closely assembled to each other by a nozzle holder 44.

More specifically, on the inner surface of each of the first nozzle plate 46 and the second nozzle plate 47 that are in close contact with each other by the nozzle holder 44, a final discharge port And a damping material applicator 49 is formed at the lower end thereof to communicate with the final discharge port 48 to form a sectoral space.

At this time, in the final discharge port 48 formed at the upper end of each inner surface of the first nozzle plate 46 and the second nozzle plate 47 which are in close contact with each other, a valve seat 62 are mounted.

Preferably, a stopper 44-3 is provided on both sides of the nozzle holder mounting end 42 to block the left and right flow of the nozzle including the first and second nozzle plates 46 and 47 and maintain the same position And further assembled integrally.

Hereinafter, an operational flow of the automotive damping material application gun having the above-described structure will be described.

The discharge operation for applying the vibration damper (see Figs. 4 and 5)

First, when pneumatic pressure is supplied to the first compressed air intake / exhaust device 35, pneumatic pressure is applied to the lower chamber 32-2 of the piston rising / lowering space 32 so that the piston 33 compresses the spring 37 Ascend and descend.

At this time, since the upper end of the lifting rod 60 is engaged with the bottom surface of the piston 33, the lifting rod 60 also moves up and down with the piston.

That is, the ascending / descending rod 60 is connected to the first hole 52-1 of the non-lubricating bush 52, the second hole 53-1 of the spacer 53, and the third hole 53-1 of the scraper 54 54-1), and so on.

When the ascending / descending rod 60 ascends and descends in this way, the lower end of the lifting / lowering rod 60 is pressed against the valve plate 62 mounted on the final discharge port 48 of the first nozzle plate 46 and the second nozzle plate 47 So that the final discharge port 48 is in the open state.

The liquid damping material supplied to the damping material supply hole 12 of the damping material supply manifold 10 is supplied to the damping material transfer hole 21 of the gun body unit main body 20 and the nozzle unit main body 43, The first nozzle plate 46 and the second nozzle plate 47 are sequentially passed through the vibration damper discharge preparation hole 41 of the first nozzle plate 46 and the final discharge port 48 of the second nozzle plate 46, ) Through a damping material applicator 49, which is a fan-shaped space.

At this time, as shown in FIG. 8, since the robot moves in one direction, the vibration damper is applied to the surface of the vehicle panel with a certain width and thickness.

A blocking operation for stopping the application of the vibration damper (see Figs. 6 and 7)

Conversely, when air pressure is supplied to the second compressed air intake / exhaust device 36, air pressure is applied to the upper chamber 32-1 of the piston rising / falling space 32, and the piston 33 is lowered by the air pressure.

At this time, since the upper end of the lifting rod 60 is engaged with the bottom surface of the piston 33, the lifting rod 60 also moves down with the piston.

That is, the ascending / descending rod 60 is connected to the first hole 52-1 of the non-lubricating bush 52, the second hole 53-1 of the spacer 53, and the third hole 53-1 of the scraper 54 54-1), and so on.

When the ascending / descending rod 60 descends in this manner, the lower end of the ascending / descending rod 60 reaches the valve seat 62 (62) attached to the final discharge port 48 of the first nozzle plate 46 and the second nozzle plate 47, So that the final discharge port 48 is closed.

Therefore, the application of the vibration damping material applied to the surface of the vehicle body panel can be stopped through the damping material applicator 49, which is the sector space of the first nozzle plate 46 and the second nozzle plate 47, as described above .

INDUSTRIAL APPLICABILITY As described above, the present invention can automatically apply the vibration damping material to the surfaces of the floor panel and the dash panel of the vehicle while controlling the discharge pressure of the vibration damping material and controlling the discharge of the vibration damping material. The working speed and quality of the vibration damper application work can be improved and the vibration damper can be easily applied to the body panel surface as a flat stream type coating pattern having a constant width and thickness.

10: manifold supply manifold 12: damping material supply hole
20: gun body unit main body 21: vibration damper transmitting hole
22: packing unit mounting space 23: guide hole
30: actuator unit 31: actuator unit main body
32: piston rising / falling space 32-1: upper chamber
32-2: Lower chamber 33: Piston
34: Cover plate 35: First compressed air intake and exhaust device
36: second compressed air intake and exhaust port 37: spring
38: Check window for operation check 39: Locking projection
40: nozzle unit 41: vibration damper discharge preparation hole
42: nozzle holder mounting end 42-1: fitting groove
43: nozzle unit body 44: nozzle holder
44-1: Tightening end 44-2: Fastening end
44-3: Stopper 45: Nozzle
46: first nozzle plate 47: second nozzle plate
48: final discharge port 49: damping material dispensing port
50: packing unit 51: packing housing
51-1: hollow hole 52: oil-free bush
52-1: first hole 53: spacer
53-1: second hole 54: scraper
54-1: Third hole 55: 1st seal
56: second seal 58: first o-ring
59: second O-ring 60: up / down rod
61: locking groove 62: valve seat
70: link arm of robot

Claims (12)

A damping material supply manifold 10 through which a damping material supply hole 12 connected to the damping material supply means is passed;
A damping material delivery hole 21 communicating with the damping material supply hole 12 of the damping material supply manifold 10 is formed in the lower end and a packing unit mounting space 22 is formed in the upper end thereof A body unit body 20 connected to the robot;
An actuator unit (30) detachably assembled on the upper surface of the gun body unit main body (20) and exhibiting lifting or lowering force;
A nozzle unit 40 detachably mounted on the bottom surface of the gun body unit body 20 to receive a damping material delivered from the damping material delivery hole 21 and discharge the damping material to the vehicle body panel surface;
A packing unit 50 mounted in the packing unit mounting space 22 of the gun body unit body 20 for maintaining airtightness between the actuator unit 30 and the nozzle unit 40;
An upper end is connected to the actuator unit 30 to open a discharge port of the nozzle unit 40 when the actuator unit is performing the bellows force and to close the discharge port of the nozzle unit 40 when the actuator unit 30 is under the low- A lifting rod 60;
Lt; / RTI >
The nozzle unit (40) comprises:
A vibration damping material discharge preparation hole 41 communicating with the vibration damping material delivery hole 21 is vertically formed in the central portion and a nozzle holder mounting end 42 is integrally formed on the bottom surface, A nozzle unit body 43 detachably assembled to a bottom surface of the nozzle unit body 20;
A pair of nozzle holders 44 respectively assembled to the front and back surfaces of the nozzle holder mounting end 42 of the nozzle unit main body 43;
A nozzle 45 which is tightened and fixed by the pair of nozzle holders 44 to finally discharge the vibration damping material from the vibration damping material discharge preparation hole 41 onto the surface of the vehicle body panel;
Wherein the vibration damping material is applied to the vibration damping material.
The method according to claim 1,
The actuator unit (30) comprises:
An actuator unit main body 31 having a piston lifting space 32 formed therein;
The piston ascending / descending space 32 is divided into an upper chamber 32-1 and a lower chamber 32-2. The piston ascends and descends in the piston ascending and descending space 32, A piston 33 to which an upper end of the piston 33 is coupled;
A cover plate 34 attached to an upper surface of the actuator unit main body 31 to seal the upper chamber 32-1 of the piston lifting / lowering space 32;
A first compressed air intake / exhaust device 35 mounted on a side surface of the actuator unit main body 31 and communicating with the lower chamber 32-2;
A second compressed air intake / exhaust device 36 mounted on the cover plate 34 and communicating with the upper chamber 32-1;
A spring 37 compressibly disposed between the bottom surface of the cover plate 34 and the upper surface of the piston 33;
Wherein the vibration damping material is applied to the vibration damping material.
The method of claim 2,
And a check window (38) for confirming whether the up / down rod (60) is lifted or lowered is formed on the front surface and the rear surface of the actuator unit body (31) key.
The method of claim 2,
A locking protrusion 39 is integrally formed at the center of the bottom surface of the piston 33 to be engaged with the lock groove 61 at the upper end of the outer diameter of the lifting rod 60 Application of vibration damping material for automobile.
The method according to claim 1,
The packing unit mounting space 22 is vertically penetratingly formed. The packing unit mounting space 22 and the vibration damper transferring hole 21 are formed in the packing body mounting space 22, And a guide hole (23) penetrating through the hole (21) so that the lifting / lowering rod (60) passes through the hole (21).
The method according to claim 1,
The packing unit (50) comprises:
A packing housing (51) having a hollow hole (51-1) formed in a vertically penetrating manner and inserted into a packing unit mounting space of the gun body unit main body;
An oil-free bushing 52 having a first hole 52-1 through which the ascending / descending rod 60 passes and inserted into the upper end of the hollow hole of the packing housing 51;
And a second hole 53-1 through which the ascending / descending rod 60 passes. The spacer 51 is inserted in the hollow of the packing housing 51 under the non-lubricating bush with the first seal 55 interposed therebetween. (53);
And a third hole 54-1 through which the ascending / descending rod 60 passes is formed so that the second seal 56 is disposed below the spacer 53 in the hollow hole of the packing housing 51 The bottom surface of which is hermetically close to the periphery of the guide hole 23 of the packing unit mounting space 22 of the gun body unit main body 20;
Wherein the vibration damping material is applied to the vibration damping material.
The method of claim 6,
A first O-ring 58 is attached to an outer diameter surface of the packing housing 51 so as to be in close contact with an inner diameter surface of the packing unit mounting space 22. An outer diameter surface of the spacer 53 is provided with an inner diameter surface And a second O-ring (59) in close contact with the second O-ring (59).
delete The method according to claim 1,
A fitting groove 42-1 is formed at the upper end of the nozzle holder mounting end 42 and an upper end of the inner surface of each nozzle holder 44 is inserted into the fitting groove 42-1, (44-1) are formed integrally with each other.
The method according to claim 1,
And a tightening step (44-2) for tightening the nozzle (45) is formed integrally with the lower end of the inner side surface of the nozzle holder (44).
The method according to claim 1,
The nozzle 45 comprises:
A first nozzle plate 46 and a second nozzle plate 47 which are provided in a semicircular block and are closely assembled to each other by a nozzle holder 44. The first nozzle plate 46 and the second nozzle plate 47, A final discharge port 48 is formed at the upper end of each nozzle plate 47 in correspondence with the vibration dumper discharge preparation hole 41 and at the lower end thereof is connected to the final discharge port 48 to form a fan- (49) is formed on a surface of the vibration damping material.
The method according to claim 1,
And a stopper (44-3) is integrally assembled to both sides of the nozzle holder mounting end (42) so as to block the lateral flow of the nozzle including the first and second nozzle plates .

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