KR20170007021A

KR20170007021A - Adhesive Spreading Apparatus of Inner pipe and Outer pipe in Anti-Vibration Bushing

Info

Publication number: KR20170007021A
Application number: KR1020150098613A
Authority: KR
Inventors: 정경표
Original assignee: (주)에스에스이티
Priority date: 2015-07-10
Filing date: 2015-07-10
Publication date: 2017-01-18
Also published as: KR101884463B1

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an inner / outer surface adhesive applying apparatus for an inner pipe and an outer pipe of an automotive dustproof bushing, and more particularly to an inner pipe and an outer pipe, To an apparatus for applying an adhesive to an anti-vibration bushing inner pipe and an outer pipe, which minimizes fire risk and dust generation.
To this end, the present invention provides a clamping apparatus comprising a rotary table arranged to be capable of sequentially rotating and stopping at a predetermined angle, a clamp assembly on which a plurality of spaced apart and coupled inner pipes or outer pipes of the vibration- A heating booth positioned at an upper portion of the table to receive a portion of the plurality of clamp assemblies and having an inlet through which heated air is introduced through the heat exchanger and an outlet through which the air introduced through the inlet is discharged to the heat exchanger; , An adhesive is introduced from one side of the heating booth and an upper part of the rotary table to be spaced apart from each other by a predetermined distance to receive a part of the plurality of clamp assemblies, The outer surface of the inner pipe or the outer pie And a water booster installed at a rear portion of the inner pipe or the outer pipe to allow water to flow along the wall surface from the upper water storage portion to the lower side, So that the adhesive sprayed from the spray nozzle unit is discharged together with the water.

Description

{Adhesive Spreading Apparatus of Inner Pipe and Outer Pipe in Anti-Vibration Bushing}

The present invention relates to an apparatus for applying an adhesive between an inner pipe and an outer pipe for an automotive dustproof bushing, and more particularly, to an automatic pipe application and an accurate application of an adhesive to an inner pipe and an outer pipe, To an apparatus for applying an adhesive to an inner pipe and an outer pipe for a dustproof bushing that minimizes fire risk and dust generation.

The car constantly receives vibration or shock from the road surface through the wheels during driving. As a result, a shock absorber is installed between the vehicle body and the axle to prevent the shock and vibration directly from being transmitted to the vehicle body, thereby improving ride comfort and running stability.

The pivot portion of the suspension link mechanism is provided with a ball joint, a screw bushing, and a rubber bushing. Among them, rubber bushings having damping characteristics are widely used in areas where desirable spring characteristics are required in order to alleviate vibrations and impacts from the road surface and ensure stability and controllability.

Since the anti-vibration bushing parts for automobiles are subjected to a large load depending on the application position, there is often a serious performance and safety problem due to breakage and separation when the inner metal pipe, that is, the inner pipe part and the rubber, are adhered to each other. For this reason, the process of applying the adhesive to the inner pipe of the rubber bushing is a very important process that determines the quality of the rubber bushing component.

However, most current manufacturers of rubber bushing parts have manually applied the adhesive directly by manual spraying method. As a result, uneven application of the adhesive, unevenness of the film thickness, and shape problem of the bushing, adhesive application inside the cylindrical metal pipe A large number of defects such as failure to uniformly occur are required and improvement is required.

In addition, manufacturers of rubber bushing parts for automotive anti-vibration have been suffering from such defective problems as well as labor supply and demand due to poor working environment.

At present, the adhesive application process is as shown in the following figure, the worker bends the waist at the time of production work, puts heavy products such as product and iron, and rotates to perform the application work. At this time, the waist is bent and the worker rotates the table manually to induce the musculoskeletal diseases. Since the worker tilts into the application booth in order to rotate in the application process, the body is exposed to the spray application liquid, There is also the possibility of causing.

Therefore, it is urgent to develop an apparatus for manufacturing a rubber bushing for automobile anti-vibration which can improve various working conditions, improve the quality and productivity of the anti-vibration bushing.

Korean Patent No. 10-0547695

The present invention has been devised to solve the problems described above, and it is an object of the present invention to provide a water-spraying apparatus that optimizes space utilization by automatically applying and accurately applying an adhesive to an inner pipe and an outer pipe, The present invention provides an apparatus for applying an adhesive to an inner pipe and an outer pipe for a dustproof bushing which improves the dust collecting efficiency by performing dry type air dust filtering after wet filtering through an air pipe.

The present invention has the following features in order to achieve the above object.

The present invention relates to a rotary table which is arranged so as to be capable of repeatedly rotating and stopping at a predetermined angle, a clamp assembly in which a plurality of spaced apart and bonded inner and outer pipes of an anti-vibration bush are mounted on the rotary table, A heating booth for receiving a part of the plurality of clamp assemblies and spaced a predetermined distance therebetween and having an inlet through which heated air flows through the heat exchanger and an outlet through which the air introduced through the inlet is discharged to the heat exchanger; And a plurality of clamp assemblies which are spaced apart from each other by a predetermined distance on one side of the heating booth and on the rotary table and are spaced apart from an opened inner side portion that receives a part of the plurality of clamp assemblies, On the outer surface of the pipe or on the inner surface of the outer pipe The water booth is provided at the rear of the inner pipe or the outer pipe and has a water screen portion through which water flows along the wall surface from the upper water storage portion to the lower side And the adhesive sprayed from the spray nozzle portion is discharged together with the water.

The heating booth may include a preheating booth for preheating the inner pipe or the outer pipe seated on the clamp assembly, a drying booth for drying the inner pipe or the outer pipe coated with the adhesive, A preheating booth for preheating is disposed at the front end of the injection booth, and a drying booth is disposed at the rear end.

In addition, the injection booth and the drying booth are repeatedly provided in a plurality of intersections for multi-step application of the adhesive.

The clamp assembly includes a center shaft rotatably disposed in a cylindrical housing, and a rib shaft rotatably received in the cylindrical housing and receiving power from the center shaft. The center shaft is rotatable with a center shaft And the center shaft and the rib shaft are protruded from the upper side of the cylindrical housing by a certain distance, and on the upper side of the protruded center shaft or the rib shaft, the inner pipe Or an extension shaft to which the outer pipe is mounted.

A driving unit for transferring rotational force to a turn block of the clamp assembly, which is positioned and fixed to the rotary table and is selectively moved in the sliding position and is coupled to the rotary table, is installed below the rotary table of the injection booth side.

The driving unit includes a support frame spaced apart from and positioned at a lower side of the rotary table, a sliding bracket slidably mounted on the support frame, a rotary shaft fixedly installed on the rear side of the sliding bracket, And a driven pulley rotatably mounted on the upper ends of the plurality of support shafts fixed to the side or front side of the sliding bracket and coupled to the driving pulley and the timing belt, The rotation of the turn block is controlled by bringing the turn block of the clamp assembly into contact with the rotation path of the timing belt in accordance with the movement of the sliding bracket.

The heating booth includes a heating housing having a predetermined accommodation space therein, a heat exchanger installed outside the heating housing, and an inlet portion connecting the inside of the heat housing and the heat exchanger so that the air passing through the heat exchanger flows into the heating booth. A discharge unit connecting the heating booth and the heat exchanger to allow the air in the heating booth to flow into the heat exchanger, and an air supply unit installed at a certain point of the inflow unit or the discharge unit, And a circulation fan for inducing circulation of the refrigerant, wherein the distributor comprises a hexahedron-shaped distribution housing, an inlet pipe for allowing air to flow into the housing from the inlet portion, and an exhaust pipe extending toward the upper portion of the distribution housing to discharge air introduced into the heating housing And a plurality of discharge pipes Adding a predetermined length in a direction cutting section is formed.

The spray booth includes a spray housing having an opening formed at one side thereof and having a predetermined accommodation space, a water screen part in the form of a partition defining a front part and a rear part of the spray housing, And an air suction unit that sucks air in the spray booth and discharges the air to the other side. The water stored in the water storage unit is continuously supplied from the outside so as to overflow to the water screen unit side .

Further, on both side walls of the heating housing corresponding to the movement path of the clamp assembly coupled to the rotary table, an opening / closing door is formed to be slidably opened and closed so as not to collide with the heating housing when the clamp assembly moves.

According to the present invention, it is possible to inject the adhesive at a fixed position, uniform thickness of the coating can be achieved, thereby eliminating the difference in product quality caused by conventional manual operations, thereby ensuring stable quality. There is an effect that can be prevented.

In addition, by applying the adhesive automatically, it is possible to keep the working environment more pleasant and to prevent the safety accidents of the respiratory series that may occur during the operation. In addition, when the steam heater is dried, Vulnerability can be removed at its source.

In addition, productivity can be greatly increased by improving the production speed through full automation of the dispenser, and harmful gas and dust generated at the time of spraying the adhesive agent in the spray booth are mixed with wet and dry methods to improve the dust collection efficiency.

1 is a perspective view of an adhesive applying apparatus according to an embodiment of the present invention.
2 is a plan view of an adhesive applicator according to an embodiment of the present invention.
3 is a view showing a rotating table of an adhesive applying apparatus according to an embodiment of the present invention.
FIG. 4 is a cross-sectional view showing a combination of a rotary table and a clamp of an adhesive applicator according to an embodiment of the present invention.
5 is a sectional view taken along the line AA 'of FIG.
6 is a cross-sectional view taken along line BB 'of FIG.
7 is a cross-sectional view taken along line CC 'in FIG.
8 is a cross-sectional view showing the arrangement relationship of the drive unit and the clamp according to the embodiment of the present invention.
FIG. 9 is a plan view showing the operation of the driving unit according to the embodiment of the present invention.
10 is a top view of a heating booth according to an embodiment of the present invention.
11 is a side view of a heating booth according to an embodiment of the present invention.
12 is a side view showing the arrangement relationship between the jetting booth and the jetting nozzle unit according to the embodiment of the present invention.
13 is a perspective view of a spray booth according to an embodiment of the present invention.
14 is a cross-sectional view illustrating an injection nozzle unit according to an embodiment of the present invention.
FIG. 15 is a perspective view illustrating an operation process of a booth opening / closing door of an adhesive agent dispensing apparatus according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. For the sake of convenience, the size, line thickness, and the like of the components shown in the drawings referenced in the description of the present invention may be exaggerated somewhat. The terms used in the description of the present invention are defined in consideration of the functions of the present invention, and thus may be changed depending on the user, the intention of the operator, customs, and the like. Therefore, the definition of this term should be based on the contents of this specification as a whole.

FIG. 1 is a perspective view of an adhesive applying apparatus according to an embodiment of the present invention, and FIG. 2 is a plan view of an adhesive applying apparatus according to an embodiment of the present invention.

Referring to the drawings, an adhesive applying apparatus 100 according to the present invention mainly includes a rotary table 10, a clamp assembly 20, a heating booth 30, and a spray booth 40.

The inner pipe IP or the outer pipe for the dustproof bushing is seated on the clamp assembly 20 and is sequentially moved to the heating booth 30 and the spray booth 40 while rotating at a predetermined angle along the rotary table 10, Thereby performing an adhesive injection process.

The adhesive applying apparatus 100 according to an embodiment of the present invention divides the heating booth 30 into a preheating booth 30a and a drying booth 30b and arranges the heating booth 30 at the front end and the rear end of the injection booth 40.

And the drying booth 30b is arranged at the rear end of each of the spray booths 40. The high temperature drying process is repeated two times after the spraying of the adhesive.

First, the inner pipe (IP) or the outer pipe is seated on the clamp assembly 20, and the rotary table is rotated by a predetermined angle to enter the preheating booth 30a of the heating booth 30.

The inner pipe IP or the outer pipe that has entered the preheating booth 30a performs a high temperature preheating process with the air heated through the heat exchanger for a predetermined time and then moves to the first injection booth 40 by the rotation of the rotary table 10 do.

The adhesive is sprayed by the spray nozzle 51 of the spray nozzle unit 50 provided so as to be able to move up and down on the front side of the spray booth 40 and the adhesive is applied to the outer surface or the inner surface of the inner pipe IP or the outer pipe do.

Then, the inner pipe IP or the outer pipe enters the first drying booth 30b by the movement of the rotary table 10 and the drying process is performed so that the applied adhesive is hardened. Thereafter, the second spray booth 40 and the second And the adhesive application and re-drying process are performed once again while sequentially moving the drying booth 30b.

The inner pipe (IP) or the outer pipe passing through the second drying booth (30b) completes the entire adhesive application process and is discharged to the outside.

In this case, the inner pipe (IP) or the outer pipe is mounted on the clamp assembly without the inner pipe (IP) or the outer pipe and the inner pipe (IP) or the outer pipe to which the adhesive is applied. It can be done by hand or by an operator.

Accordingly, the adhesive application process according to an embodiment of the present invention is performed by preheating -> applying the first adhesive -> first drying -> applying the second adhesive -> second drying.

If too much adhesive is applied to achieve the intended application thickness of the adhesive of the inner pipe (IP) or the outer pipe by the primary process alone, the adhesive will flow downward due to gravity, so that the inner pipe (IP) And the thickness of the adhesive applied on the lower side is different.

Accordingly, the target coating thickness of the inner pipe (IP) or the outer pipe can be achieved twice to improve the quality of the adhesive application.

Of course, if the desired adhesive coating thickness is possible only by the first application, the preheating- > primary adhesive application-> primary drying furnace process will be performed and the inner pipe (IP) or outer pipe will be heated by the preheating booth 30a, (40) and the first drying booth (30b) sequentially.

FIG. 3 is a view showing a rotary table of an adhesive applicator according to an embodiment of the present invention, and FIG. 4 is a cross-sectional view showing a combination of a rotary table and a clamp of an adhesive applicator according to an embodiment of the present invention.

Referring to the drawings, a rotary table 10 according to the present invention includes a heating assembly 30 and a spray booth 30 arranged to be capable of sequentially rotating and stopping at a predetermined angle and being fastened to a rotary table 10, 40).

The rotary table 10 has a lower support structure and is configured to perform rotation control through a motor M. [

In the clamp assembly 20, a pipe (IP) or an outer pipe is seated for the anti-vibration bushing. A plurality of seating points are formed to seat the inner pipe (IP) or the outer pipe in many or various forms.

5 is a cross-sectional view taken along the line A-A 'of FIG. 3, FIG. 6 is a cross-sectional view taken along the line B-B' of FIG. 5, and FIG. 7 is a cross-sectional view taken along the line C-C 'of FIG.

Referring to the drawings, the clamp assembly 20 includes a cylindrical housing 21, a center shaft 22 rotatably disposed in the cylindrical housing 21, and a cylindrical housing (not shown) A plurality of rib shafts 23 disposed radially around the center shaft 22 so as to be rotatable within the center shaft 22 and a plurality of rib shafts 23 fixedly rotatable with the center shaft 22 on the lower side of the center shaft 22, A turn block 24 to which a rotational force is externally applied and a center shaft 22 and a rib shaft 23 protruding from the upper portion of the cylindrical housing 21, And an extension shaft 25 to which the drive shaft 25 is mounted.

The clamp assembly 20 is provided to rotate an inner pipe IP or an outer pipe to be mounted on the inner pipe IP or the outer pipe. The clamp assembly 20 applies a rotational force to rotate the clamp assembly 20 to be described later.

When the timing belt 65 of the drive unit 60 applies a rotational force to the turn block 24 and transmits rotational force to the center shaft 22 which is fixedly coupled to the turn block 24, So that the rib shaft 23 of the rotor shaft 23 rotates together.

The rib shaft 23 and the cylindrical housing 21 are also configured to transmit power so that when the turn block 24 rotates through the drive unit 60, the center shaft 22, the rib shaft 23, (21) rotates with respect to each center.

7, the power transmission between the center shaft 22, the rib shaft 23, and the cylindrical housing 21 is accomplished through gear engagement. However, the present invention is not limited thereto.

As described above, the rotation structure of the center shaft 22, the rib shaft 23 and the cylindrical housing 21 is such that the inner pipe IP or the outer pipe, which is seated through the extension shaft 25, So that a uniform coating layer can be formed.

That is, when the cylindrical housing 21 does not rotate when the injection nozzle 51 of the injection nozzle unit 50 injects the adhesive at a predetermined position, the inner pipe IP or the outer pipe Since the thickness of the coating surface is thicker and the thickness becomes thinner as the distance from the spray nozzle 51 toward the pipe becomes closer to the diameter of the pipe, the cylindrical housing 21 rotates about the center of the pipe, (IP) or the coating surface of the outer pipe are made the same.

When the center shaft 22 or the rib shaft 23 is not rotated, the thickness of the coated surface is thicker on the inner pipe IP or on the outer pipe facing the injection nozzle 51, and on the opposite side of the facing surface, Or may be formed in a thin thickness.

Accordingly, the center shaft 22 or the rib shaft 23 is configured to rotate so that the inner pipe IP or the outer pipe to be mounted thereon is uniformly coated.

The extension shaft 25 connected to the center shaft 22 and the rib shaft 23 protruding from the upper portion of the cylindrical housing 21 at a certain distance to seat the inner pipe IP or the outer pipe, And a coupling holder 26 which couples these elements can be further included.

The coupling holder 26 may be integrally formed on the end side of the extension shaft 25 and may be separately detachable.

The extension shaft 25 or the coupling holder 26 may be coupled only to the rib shaft 23 or only to the center shaft 22 depending on whether the object to form the current application surface is an inner pipe IP or an outer pipe, The shape of the extension shaft 25 may also be attached to the extension shaft 25 according to the shape of the inner pipe IP or the outer pipe.

Although the ribs 23 and the coupling holder 26 and the extension shaft 25 are illustrated in the drawing, the inner pipe IP is specified as an object to be coated. However, in the case of the outer pipe, the coupling holder 26 is attached to the center shaft 22, And the extension shaft 25 are coupled to each other and a separate outer pipe attachment jig is formed on the extension shaft 25, the injection nozzle 51 is inserted upward and downward into the outer pipe to inject the adhesive.

FIG. 8 is a cross-sectional view illustrating the arrangement of a drive unit and a clamp according to an embodiment of the present invention, and FIG. 9 is a plan view illustrating an operation process of the drive unit according to an embodiment of the present invention.

Referring to the drawings, a drive unit 60 according to the present invention is provided for selectively applying a rotational force to a turn block 24 of the clamp assembly 20. The drive unit 60 includes a rotary table 10 A sliding bracket 62 slidably mounted on the support frame 61 and fixed to the rear side of the sliding bracket 62 so as to be rotatable A driving pulley 63a rotatably connected to the rotary shaft 63 at an upper end of the rotary shaft 63 and a plurality of support shafts 64 fixed to the side or front of the sliding bracket 62 And a driven pulley 64a which is rotatably installed at an upper end of the driving pulley 63a and engages with the timing belt 65. [

Therefore, when the rotary shaft 63 receives the rotational force from the rotary motor M and rotates, the driving pulley 63a rotates together and all the driven pulleys 64a coupled with the timing belt 65 rotate together.

9, the driving pulley 63a and the driven pulley 64a are connected to each other according to whether the sliding bracket 62 is moved or not. On the rotation path of the timing belt 65 constituting the closed circuit, The rotation of the turn block 24 causes the center shaft 22, the rib shaft 23 and the cylindrical housing 21 of the clamp assembly 20 to rotate about the respective centers.

Here, the position sensor S may be provided at the tip of the sliding bracket 62 for precise contact position control of the timing belt 65 and the turn block 24 contacting the timing belt 65.

The sliding movement control of the sliding bracket 62 may be performed by receiving the position sensor S information through a separate motor M and a control unit.

The drive unit 60 is installed at the lower end of the rotary table 10 and preferably at the lower end of the rotary table 10 on the side of the injection booth 40.

This is because the rotating force of the inner pipe (IP) or the outer pipe is applied only to the clamp assembly 20 accommodated inside the injection booth 40 because it is necessary to apply the adhesive.

Of course, if necessary, a rotational force is also applied to the clamp assembly 20 in the heating booth 30 to apply the same temperature condition to both the inner pipe (IP) and the outer pipe according to the temperature distribution in the heating booth 30 having a minute temperature difference However, it is not efficient because there is little difference in drying result depending on the uniformity of the temperature condition.

On the other hand, the number of the drive units 60 is proportional to the number of accommodated clamp assemblies 20 in the injection booth 30. As shown in FIG. 9, one drive unit 60 rotates two turn blocks 24, The number of drive units 60 required in this case will be one-half the number of clamp assemblies 20 in the injection booth 30. In this case,

FIG. 10 is a plan view of a heating booth according to an embodiment of the present invention, and FIG. 11 is a side view of a heating booth according to an embodiment of the present invention.

Referring to the drawings, a heating booth 30 according to the present invention accommodates a part of a clamp assembly 20 of a rotary table 10, and an inner pipe IP or an outer pipe seated on the clamp assembly 20 is heated to a high temperature It is equipped for preheating or drying.

The heating booth 30 includes a heating housing 30a having a predetermined accommodation space therein, a heat exchanger 31 provided outside the heating housing 30a, an air passing through the heat exchanger 31 An inlet portion 32 connecting the inside of the heating housing 30a with the heat exchanger 31 so as to be introduced into the heating housing 30a and an outlet portion 32a through which the air introduced from the inlet portion 32 is discharged into the heating housing 30a A discharge unit 33 for connecting the heating booth 30 and the heat exchanger 31 so that the air in the heating booth 30 flows into the heat exchanger 31, Or a circulation fan 35 installed at a certain point of the discharge part 33 to induce circulation of air.

The distributor 34 is provided for uniformizing the temperature distribution in the heating booth 30 because the air passing through the heat exchanger 31 can be discharged uniformly without being discharged at a specific point in the heating booth 30 A plurality of discharge pipes 34c are formed and discharged through the discharge pipes 34c.

The distributor 34 includes a housing accommodating space 34a having a hexahedral shape and an inflow pipe 34b for allowing the air to flow into the housing from the inflow section 32 and extending toward the upper side of the distribution housing 34a And a plurality of discharge pipes 34c for discharging the air introduced into the heating housing 30a.

In addition, the plurality of discharge pipes 34c are formed with a cut-out portion 34d having a predetermined length in the vertical direction. The cut-out portion 34d is preferably formed on the discharge pipe 34c side facing the clamp assembly 20.

As shown in FIG. 1, the heating booth 30 may include a plurality of heating booths 30 and may include a preheating booth 30a for preheating the inner pipe IP of the clamp assembly 20 or the outer pipe And a drying booth 30b for drying the inner pipe IP of the clamp assembly 20 constituted or coated with adhesive or the outer pipe.

FIG. 13 is a perspective view of a jetting booth according to an embodiment of the present invention, and FIG. 14 is a sectional view of an embodiment of the present invention Fig.

Referring to the drawings, a spray booth 40 according to the present invention includes a plurality of clamp assemblies 20, a lifting and lowering spray nozzle unit 50 spaced apart from the front of the spray booth 40, 20 or the inner surface of the outer pipe IP or the inner surface of the outer pipe IP.

The spray booth 40 includes a spray housing 43 having an opening formed at one side thereof and having a predetermined accommodation space and a water screen 42 having a partition wall shape defining a front portion and a rear portion of the spray housing 43, A water storage portion 41 connected to the rear side of the upper end of the water screen portion 42 to store water and an air suction portion 44 for sucking the air in the spray booth 40 and discharging the air to the other side .

The water screen unit 42 is disposed to be inclined with respect to the vertical direction so that water stored in the water storage unit 41 overflows and flows down along the wall surface of the water screen unit 42.

A part of the adhesive sprayed from the spray nozzle 51 is applied to the outer surface of the inner pipe IP or the inner surface of the outer pipe but most of the adhesive is applied to the wall surface of the water screen portion 42 by the jetting speed .

Accordingly, the impacted adhesive flows downward together with the water flowing downward, and then is discharged to the outside through a water outlet (not shown) separately provided at the lower side of the spraying housing 43 together with the water.

In addition, very fine particulate components are discharged from the adhesive through the air suction part 44, and a separate dust filter is provided at the distal end of the air suction part 44 so as to pass therethrough, thereby removing harmful substances.

As described above, the present invention is configured such that the adhesive containing chemical components harmful to the human body is subjected to the wet filtration treatment by the water screen unit 42, and the dry filtration treatment is performed through the air suction unit 44 secondarily.

That is, heavy particles among the adhesive sprayed in the form of a spray are firstly discharged together with water, and particles lighter than the adhesive are discharged through the air suction unit 44, and the harmful substances can be properly treated.

On the other hand, the injection nozzle unit 50 is disposed on the front side of the injection booth 40, that is, on the center side of the adhesive applying apparatus 100, and injects the adhesive onto the injection booth 40 side.

As shown in FIG. 14, the injection nozzle unit 50 is configured to be able to move up and down through a driving unit such as a motor. This is achieved by moving up or down an inner pipe IP or an outer pipe, So that a large amount of coating can be performed at the same time.

FIG. 15 is a perspective view illustrating an operation process of a booth opening / closing door of an adhesive agent dispensing apparatus according to an embodiment of the present invention.

Referring to the drawings, the heating booth 30 according to the present invention is provided with an opening / closing door 36 for selectively configuring the interior airtight. The opening / closing door 36 includes a clamp assembly And is slid on both side walls of the corresponding heating housing 30a on the moving path of the heat exchanger 20 to be opened and closed.

Thus, before the rotary table 10 rotates, the both side door 36 of the heating booth 30 is opened, and then the rotary table 10 is rotated. When the rotation is completed, the door 36 is closed again Open / close control is performed.

Of course, a separate control unit and a driving motor should be provided for the opening / closing control.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. .

10: Rotary table 20: Clamp assembly
30: Heating booth 40: Spray booth
50: injection nozzle unit 60: drive unit
100: adhesive application device

Claims

A rotary table (10) arranged to be capable of sequentially repeating rotation and stopping at a constant angle;
A clamp assembly 20 spaced apart from the rotary table 10 and coupled to the inner pipe IP or the outer pipe of the dustproof bushing;
An inlet 32 for receiving a portion of the plurality of clamp assemblies 20 and spaced apart from the rotary table 10 by a predetermined distance and introducing heated air through the heat exchanger 31, A heating booth 30 in which a discharge portion 33 through which the introduced air is discharged to the heat exchanger is formed;
A plurality of clamping assemblies (20) spaced apart from each other at one side of the heating booth (30) and an upper portion of the rotary table (10) 50 for applying an adhesive to the outer surface of the inner pipe IP or the inner surface of the outer pipe to be adhered to the clamp assembly 20,
In the injection booth 40,
A water screen unit 42 installed at a rear portion of the inner pipe IP or the outer pipe and having water flowing along the wall surface from the water storage unit 41 at the upper side is formed, And an adhesive agent sprayed from the outer pipe is discharged together with the water.

The method according to claim 1,
The heating booth 30 includes a preheating booth 30a for preheating an inner pipe IP or an outer pipe seated on the clamp assembly 20 and an inner pipe IP or an outer pipe And a drying booth 30b,
Wherein a preheating booth (30a) for preheating is disposed at the front end of the injection booth (40) in accordance with the rotation direction of the rotary table (10), and a drying booth (30b) Adhesive application device for outer pipe.

3. The method of claim 2,
The spray booth 40 and the drying booth 30b
Wherein a plurality of the adhesive is repeatedly provided in a crossing manner for multistage coating of the adhesive.

The method according to claim 1,
The clamp assembly 20 includes a center shaft 22 rotatably disposed within a cylindrical housing 21 and a plurality of ribs 23 that are received by the center shaft 22 and are rotatable within the cylindrical housing 21, A shaft (23) is included,
A turn block 24 is formed on the lower side of the center shaft 22 so as to be rotatable with the center shaft 22. The center shaft 22 and the rib shaft 23, An extension shaft 25 to which the inner pipe IP or the outer pipe is attached is provided at an upper side of the center shaft 22 or the rib shaft 23 protruding from the upper side of the cylindrical housing 21. [ Wherein the inner pipe and the outer pipe are joined to each other.

5. The method of claim 4,
A rotation force is applied to the turn block 24 of the clamp assembly 20 which is positioned and fixed to the rotary table 10 and is selectively moved in the sliding position and is coupled to the rotary table 10 at the lower part of the rotary table 10 on the side of the injection booth 40 And a drive unit (60) for transferring the adhesive to the inner pipe and the outer pipe.

6. The method of claim 5,
The drive unit (60)
A support frame 61 which is positioned and fixed to the lower side of the rotary table 10, a sliding bracket 62 which is slidably mounted on the support frame 61, A driving pulley 63a rotatably connected to the rotating shaft 63 at an upper end of the rotating shaft 63 and a plurality of driving pulleys 63a fixed to the side or front of the sliding bracket 62, And a driven pulley 64a rotatably mounted on the upper end of the support shaft 64 and engaged with the drive pulley 63a and the timing belt 65,
The rotation of the turn block 24 is controlled by causing the turn block 24 of the clamp assembly 20 to contact the rotation path of the timing belt 65 in accordance with the movement of the sliding bracket 62. [ Adhesive application device for inner pipe and outer pipe for anti-vibration bushings.

3. The method of claim 2,
The heating booth (30)
A heat exchanger 31 installed outside the upper portion of the heating housing 30a and an air inlet 31a for introducing the air passing through the heat exchanger 31 into the heating housing 30a An inflow part 32 connecting the inside of the heat exchanger 31 and the inside of the heating housing 30a so as to discharge the air introduced from the inflow part 32 into the heating housing 30a, A discharge section 33 for connecting the heating booth 30 and the heat exchanger 31 so that the air in the heating booth 30 flows into the heat exchanger 31 and a discharge port 33 for connecting the heating booth 30 and the heat exchanger 31, And a circulation fan (35) installed at the branch point to induce circulation of air,
The distributor 34 includes a housing accommodation space 34a in the form of a hexahedron and an inflow pipe 34b for allowing air to flow into the housing from the inflow section 32. The inflow pipe 34b extends toward the upper side of the distribution housing 34a, And a plurality of discharge pipes (34c) for discharging the air introduced into the housing (30a), wherein the plurality of discharge pipes (34c) are formed with cutouts (34d) Adhesive application device for inner pipe and outer pipe.

The method according to claim 1,
The injection booth (40)
A water screen portion 42 in the form of a partition for partitioning a front portion and a rear portion of the injection housing 43; A water storage portion 41 connected to the upper rear side of the water storage portion 41 for storing water and an air suction portion 44 for sucking the air in the spray booth 40 and discharging the air to the other side, 41 is overflowed toward the water screen part (42) as the water continuously supplied from the outside is supplied to the water screen part (42).

9. The method of claim 8,
The side walls of the heating housing 30a corresponding to the movement path of the clamp assembly 20 coupled to the rotary table 10 are provided with openings for closing the sliding door 20a so as not to collide with the heating housing 30a when the clamp assembly 20 moves. And a door (36) is formed on the inner pipe (40).