KR101503724B1 - Booster for fixed quantity discharging material of suppressing vibration - Google Patents

Abstract

The present invention relates to a booster for discharging a fixed quantity of a vibration damper material and controlling an initial coating pressure, and more particularly, to a booster for discharging a fixed quantity of a vibration damper material and controlling an initial coating pressure, which is capable of supplying the vibration damper material under fixed quantity discharge control and initial coating pressure control for a vibration damper material coating gun. According to the present invention, there is provided at least one pair of boosters for discharging a fixed quantity of a vibration damper material which is installed between a vibration damper material supplying pump and a vibration damper material coating gun to perform a control of an initial pressure of the vibration damper material supplied to the vibration damper material coating gun (initial coating pressure control function), a fixed quantity discharge control (coating flow-rate control function), and a coating flow-rate check function, so that the vibration damper material may be coated from a coating start point to a coating end point at a constant controlled thickness and width, thereby improving the coating quality of the vibration damper material.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a booster for adjusting a discharge amount of a vibration damping material and an initial application pressure of the vibration damper,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a booster for controlling the dispensing of a damping material and an initial coating pressure, and more particularly, to a booster for controlling vibration of a vibration damping material, And more particularly to a booster for controlling the dispensing of a damping material and the initial coating pressure.

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.

In view of such conventional problems, the applicant of the present application has proposed a method for controlling the discharge pressure of a damping material by providing a damping material supply and discharge portion, a pneumatic actuator for supplying discharge pressure to the damping material, (Patent Application No. (hereinafter, referred to as " Patent Application No. " filed with the Japanese Patent Application No. 10-194550) has already been filed, which makes it possible to easily apply the vibration damping material as a flat stream type coating pattern to the vehicle body panel surface, : 10-2013-90599 (Jul. 31, 2013)).

However, when the vibration damper is coated with the flat stream type coating pattern by the vibration damper application gun, there is a fear that the thickness and the width are not uniformly applied and the quality of the vibration damper application quality is lowered.

That is, as shown in the left-hand side of FIG. 4, the initial application of the vibration damping material is not controlled and the width of the initial application portion of the vibration damping material is narrow or widened. There is a problem of falling.

In order to control the thickness and width of the vibration damping material applied by the damping material application gun, it is urgently required to control the flow rate of the vibration damping material supplied to the vibration damping material application nozzle and the initial pressure control.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a damping material application method and a damping material application method, It is possible to apply a constant flow rate control function (coating flow rate control function), a coating flow rate check function, etc. so that the vibration damping material can be applied with a uniform thickness and width from the initial coating point to the end point of the vibration damping material And it is an object of the present invention to provide a booster for dispensing fixed amount of vibration damping material capable of improving the coating quality of the vibration damping material.

According to an aspect of the present invention, there is provided a damping material supply line connected to a damping material supply pump at one side thereof and a damping material discharge line connected to the damping material application gun at a lower end thereof, Booster gun; A booster cylinder hermetically coupled to an upper end of the booster gun; A servo motor mounted on an upper end of the booster cylinder; A screw shaft connected to the output shaft of the servo motor so as to be rotatable through a bearing; A servo mechanism positioned inside the upper side of the booster cylinder and inserted and coupled with the screw shaft so that the screw shaft can be rotated in the up and down direction during the screw shaft rotation; The booster cylinder is disposed inside the lower portion of the booster cylinder and pressurizes the vibration damping material filled in the booster gun for filling and discharging together when the servo mechanism is lowered so as to discharge the vibration damping material. A pressurizing rod ascending and descending to a position; The present invention also provides a booster for controlling the dispensing and initial coating pressure of a damping material.

Preferably, the damper filling line of the booster gun for filling and discharging the damping material is equipped with a first opening / closing valve that is opened only when the damping material is filled.

More preferably, the damper discharge line of the booster gun for filling and discharging the damping material is equipped with a second opening / closing valve which is opened only to release the damping material.

In addition, the booster cylinder is equipped with a position sensor for sensing the origin position of the pressing rod.

In addition, the damper filling and discharging booster gun is equipped with a pressure sensor for sensing the pressure and the discharge pressure at the initial pressing of the vibration damper.

A sealing guide pipe for guiding the up / down path of the pressure rod and sealing the flow of the vibration damper to the booster cylinder is inserted in the inner diameter of the connection portion between the damper filling and discharging booster gun and the booster cylinder.

Preferably, the pressurizing rod includes: a vertical pressurizing pipe having: an upper portion opened; a lower portion vertically pressurizing the damping material inside the booster gun for filling and discharging the damper material; A horizontal platen integrally formed on the outer periphery of the upper opening of the vertical pressurizing pipe to function as a sensing reference point of the position sensing sensor and to receive a downward pressing force of the servo mechanism; .

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

First, it is possible to control the flow rate of the damping material supplied to the damping material application gun and control the application pressure, so that the thickness and width of the damping material applied by the damping material application gun can be controlled to be constant.

Second, the vibration damping material can be automatically applied to the surfaces of floor panels, dash panels, etc. of the vehicle, and the vibration damping material can be applied with a uniform width and thickness.

Thirdly, by controlling the discharge pressure of the vibration damping material and allowing discharge control of the vibration damping material, 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.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view showing a booster for controlling the dispensing of a damping material and the initial coating pressure according to the present invention;
FIGS. 2A to 2E are sectional views sequentially showing operation flows of the booster for controlling the initial application pressure and the fixed amount discharge of the damping material according to the present invention;
FIG. 3 is a schematic view showing that the booster for controlling the fixed amount of the damping material and the initial application pressure of the damping material are connected to the damping material pump and the damping material application gun,
Figure 4 is a comparison of the initial coating quality of the conventional damping material and the initial coating quality of the damping material according to the present invention,
5 is a perspective view showing a damping material application gun connected to the booster for controlling the initial application pressure and the fixed amount discharge of the damping material 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 relates to a damping material dispensing device capable of performing initial pressure control (initial pressure control function) of a damping material supplied to a damping material application gun, a constant flow rate discharge control function (coating flow rate control function), a coating flow rate check function, And a booster for controlling the initial application pressure.

3 is a block diagram showing a booster for controlling the fixed dispensing and initial application pressure of the damping material according to the present invention connected to the damping material pump and the damping material application gun.

3, the booster 100 for controlling the quantitative discharge and the initial application pressure of the damping material according to the present invention is connected and disposed between the damping material supply pump 200 and the damping material application gun 300, The initial pressure control and the constant flow rate discharge control for the damping material supplied from the damping material application gun 300 to the damping material application gun 300.

Hereinafter, the configuration of the booster for controlling the fixed dispensing and the initial coating pressure of the vibration damping material according to the present invention will be described with reference to FIGS. 1 and 2A to 2E.

As shown in FIG. 1, the booster 100 according to the present invention is fixedly mounted on a predetermined frame so that one or more of them can be alternately operated.

As one constitution of the booster 100 for controlling the quantitative discharge and the initial coating pressure of the vibration damping material according to the present invention, the vibration damper filling and discharging booster gun 110 is disposed at the bottom.

A damper filling line 112 connected to the damper feed pump 200 is connected to one side of the damper filling and discharging booster gun 110 to fill the damper material from the damper feed pump 200 And a damping material discharge line 114 connected to the damping material application gun 300 is connected to the lower end to discharge the damping material from the damping material application gun 300.

At this time, the damping material filling line 112 of the damping material filling and discharging booster gun 110 is opened at the filling of the damping material, and the first opening and closing valve 116 which is closed at the time of initial pressure generation and discharge to the damping material Respectively.

The second opening / closing valve 118, which is opened when the damping material is discharged and closed when the damping material is charged and when the initial pressure is generated, is mounted on the damping material discharge line 114 of the damping material filling and discharging booster gun 110 do.

A booster cylinder 120 is hermetically coupled to an upper end of the booster gun 110. A servo mechanism 150 and a pressing rod 160 are stacked vertically in the booster cylinder 120 do.

At the upper end of the booster cylinder 120, a servomotor 130 as a driving source for raising and lowering the servo mechanism 150 and the pressing rod 160 is mounted.

A screw shaft 140 having a predetermined length is rotatably connected to the output shaft of the servo motor 130 through a bearing 132.

Meanwhile, the servo mechanism 150 disposed inside the upper portion of the booster cylinder 120 has a hollow block structure in which the inner diameter portion is screwed to the screw shaft 140.

The screw shaft 140 is inserted into the inner diameter portion of the servo mechanism 150 such that the screw shaft 140 is rotatable in place so that the servo mechanism 150 moves up and down during normal and reverse rotation of the screw shaft 140.

The push rod 160 disposed inside the lower portion of the booster cylinder 120 is connected to the bottom of the servo mechanism 150 and moves down while being pushed together by the pressure when the servo mechanism 150 is lowered Respectively.

More specifically, the pressurizing rod 160 has a vertical pressurizing pipe 162 which is open at the top and a lower portion which is pressurizablely disposed inside the booster gun 110 for filling and discharging the damper material, And a horizontal pressing plate 164 integrally formed on the outer peripheral portion of the upper opening of the vertical pressing pipe 162 to function as a sensing reference point of the position detecting sensor 122 and to receive pressing force when the servo mechanism 150 is lowered .

At this time, the screw shaft 140 is screwed on and passed through the inner diameter portion of the servo mechanism 150, and the lower end of the screw shaft 140 enters the inside of the pressing rod 160 through the upper opening of the pressing rod 160 , The horizontal pressure plate 164 of the pressing rod 160 and the servo mechanism 150 are kept in a close contact state.

The servo mechanism 150 applies a pressing force to the horizontal pressing plate 164 of the pressing rod 160 and presses the pressing rod 160 at the same time when the servo mechanism 150 is lowered by the rotation of the screw shaft 140, The vibration damping material filled in the vibration damper filling and discharging booster gun 110 is discharged toward the damping material applying gun 300. On the other hand, after the pressing rod 160 is completely lowered, (Original position) by the filling pressure of the damping material filled in the booster gun 110 for filling and discharging.

Preferably, the booster cylinder 120 is equipped with a position sensing sensor 122 for sensing whether the pressure rod 160 is present at the home position. The position sensing sensor 122 is connected to the pressure rod 160, And detects whether the pressure rod 160 has returned to the origin position after the pressure rod 160 descends.

A pressure sensor 124 is mounted on the damping material filling and discharging booster gun 110. The pressure sensor 124 senses the pressure and initial pressing pressure of the damping material in the booster gun 110 And detects whether or not it is within the reference range.

The inner diameter of the connecting portion between the damper filling and discharging booster gun 110 and the booster cylinder 120 guides the ascending and descending path of the pressing rod 160 and seals the flow of the damper to the booster cylinder 120 A separate sealing guide pipe 170 is inserted and mounted.

Hereinafter, an operation flow of the booster according to the present invention will be described with reference to FIGS. 2A through 2E.

As shown in the attached FIG. 2A, as a preparatory step for discharging the vibration damper. The vibration damping material is filled in the booster gun 110 and the pressing rod 160 is positioned at the home position and maintained in a state of being in close contact with the servo mechanism 150. [

At this time, the first on-off valve 116 mounted on the damping material filling line 112 of the damping material filling and discharging booster gun 110 and the second on-off valve 118 mounted on the damping material discharging line 114 Are all kept in a closed state.

Next, as shown in FIG. 2B, a step for generating the initial pressure of the vibration damping material is performed.

That is, when the servo motor 130 is rotationally driven in the forward direction and the screw shaft 140 is rotated in a state where the first opening / closing valve 116 and the second opening / closing valve 118 are closed, the screw shaft 140 The servo mechanism 150 coupled to the booster gun 110 is lowered and simultaneously the pushing rod 160 is pushed down by the servo mechanism 150. When the pushing rod 160 is lowered, The initial pressure is generated.

At this time, the initial pressure of the vibration damping material in the booster gun 110 is measured by the pressure sensor 124, and when the measured pressure reaches the set reference value, the discharging step of the vibration damping material proceeds.

Subsequently, as shown in FIG. 2C, a step of discharging the vibration damper to the vibration damper 300 is performed.

When the initial pressure of the damping material in the booster gun 110 reaches the reference value, the first on-off valve 116 is kept closed and the damping material discharge line 114 of the booster gun 110, The opening / closing valve 118 is opened so that the vibration damping material in the booster gun 110 is discharged toward the damping material application gun 300.

Of course, the servo motor 130 continues to be driven so that the screw shaft 140 rotates in place and the servo mechanism 150 fastened to the screw shaft 140 is continuously lowered. At the same time, the servo mechanism 150 rotates the pressing rod 160 are lowered to the discharge completion point, all of the vibration damping material in the booster gun 110 is discharged.

4, since the initial discharge pressure of the vibration damping material is adjusted to the reference range, the initial application width of the vibration damping material by the vibration damping material application gun 300 is easily maintained at a desired level So that the coating quality of the vibration damping material can be improved.

5, the damping material application gun 300 includes a damping material supply manifold 10 connected to the damping material discharge line 114, a damping material supply manifold 10 connected to the damping material supply manifold 10, A link arm 70 mounted on the rear surface of the gun body unit main body 20 for connection with the robot and a link arm 70 mounted 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 a pneumatic pressure applied to the nozzle unit (40), and a nozzle unit (40) for finally applying the damping material, The damping material is applied to the surface of the body panel panel while being finally discharged, and the damping material is applied to the surface of the body panel with a certain width and thickness because the robot moves in one direction.

As described above, when the vibration damping material in the booster gun 110 is completely discharged, the servo motor 130 rotates in the reverse direction and the screw shaft 140 rotates in the reverse direction, so that the servo mechanism 150 moves linearly in the reverse direction And returned to its original position (see Fig. 2d).

Subsequently, as shown in FIG. 2E, the filling of the booster gun 110 with the vibration damping material proceeds.

To this end, a first on-off valve 116 connected to the damping material filling line 112 of the damping material filling and discharging booster gun 110 is opened, a second on-off valve 118 is controlled to be closed, The drive motor 130 is stopped.

The damping material from the damping material supply pump 200 is filled into the booster gun 110 along the damping material filling line 112 while the pressure of the damping material 160 is applied to the pressing rod 160, And is brought into close contact with the bottom of the servo mechanism 150.

At this time, the position detection sensor 122 mounted on the booster cylinder 120 senses that the horizontal pressure plate 164 of the pressure rod 160 has reached the home position, and preparations for the next vibration damper discharge are made.

As described above, it is possible to control the flow rate of the damping material supplied to the damping material application gun and control the application pressure, so that the thickness and width of the damping material applied by the damping material application gun can be controlled, In particular, since the initial application width of the vibration damping material can be maintained at a desired level by adjusting the initial application pressure of the vibration damping material, the quality of the vibration damping material application can be greatly improved.

10: manifold supply manifold 20: gun body unit body
30: actuator unit 45: nozzle
70: link arm of robot
100: Booster for controlling the dispensing of the damping material and the initial coating pressure
110: booster gun for filling and discharging vibration damper
112: Damping material filling line 114: Damping material discharging line
116: first opening / closing valve 118: second opening / closing valve
120: booster cylinder 122: position sensor
124: Pressure sensor 130: Servo motor
132: Bearing 140: Screw shaft
150: Servo mechanism 160:
162: vertical pressure pipe 164: horizontal pressure plate
170: sealing guide pipe 200: damper feed pump
300: Application of damping material

Claims (7)

A damper filling line 112 connected to the damping material supply pump 200 is connected to one side portion and a damping material filling line connected to the damping material discharging line 114 connected to the damping material applying gun 300 is connected to the lower end portion, A booster gun 110;
A booster cylinder (120) tightly coupled to an upper end of the booster gun (110);
A servo motor 130 mounted on an upper end of the booster cylinder 120;
A screw shaft 140 connected to the output shaft of the servo motor 130 so as to be rotatable through a bearing 132;
A servo mechanism 150 which is located inside the upper side of the booster cylinder 120 and in which the screw shaft 140 is rotatably inserted therein so as to move up and down when the screw shaft 140 rotates;
The booster cylinder 120 is disposed inside the lower portion of the booster cylinder 120. When the servo mechanism 150 is lowered, the vibration damper is simultaneously depressed to pressurize the vibration damper filled in the damper filling and discharging booster gun 110, A pressing rod 160 which ascends and descends to the original position by the filling pressure of the damping material to be filled after the falling;
A first opening / closing valve (116) installed in the damper filling line (112) of the damper filling and discharging booster gun (110) and opened only at the time of filling the damper material;
A second on-off valve (118) mounted on the damping material discharge line (114) of the damping material filling and discharging booster gun (110) and opened only to release the damping material;
Wherein at least one pair is provided between the damper feed pump and the damper application gun to supply the damper material from the damper material supply pump to the damper material application gun with alternate operation, Pressure control booster.
delete delete The method according to claim 1,
Wherein the booster cylinder (120) is equipped with a position sensor (122) for sensing the origin position of the pressing rod (160).
The method according to claim 1,
Wherein the booster gun (110) for filling and discharging the damping material is equipped with a pressure sensor (124) for sensing a pressure and a discharge pressure at the initial pressing of the damping material.
The method according to claim 1,
A seal ring for sealing the passage of the vibration damper to the booster cylinder 120 while guiding the ascending / descending path of the pressing rod 160 is provided in the inner diameter of the connecting portion between the damper filling and discharging booster gun 110 and the booster cylinder 120. [ Wherein the pipe (170) is inserted and mounted.
The method according to claim 1,
The pressing rod 160 includes:
A vertical pressurizing pipe 162 which is disposed so as to be able to pressurize the damping material inside the booster gun 110 for filling and discharging damping material;
A horizontal platen 164 integrally formed on the outer periphery of the upper opening of the vertical pressure pipe 162 to function as a sensing reference point of the position sensor 122 and to receive a pressing force when the servo mechanism 150 is lowered;
Wherein the booster is for controlling the dispensing of the damping material and the initial coating pressure.

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