KR100457385B1 - Discharging apparatus of a mixture - Google Patents

Abstract

SUMMARY OF THE INVENTION An object of the present invention is to provide a mixture discharging device which can suppress the generation of air bubbles, induce the accurate discharging of a mixture, and is easy to replace the used mixture cartridge. To this end, the present invention includes a case having a nozzle at one end, a case in which a mixture cartridge is accommodated, and detachably coupled to the other end of the case, and forming a predetermined space with the mixture cartridge housed in the case, wherein the space portion And a skirt having a cover having an air inlet to inject pressurized air into the cover, and pressurizing an end portion of the mixture cartridge facing and coupled to an end portion of the cover, the skirt unit sealing the cover and the mixture cartridge. Provided is a discharge device.

Description

Discharging apparatus of a mixture

TECHNICAL FIELD The present invention relates to a discharging device for a mixed agent, and more particularly, to a mixed agent discharging device which can be used for a mixed agent applying device capable of applying a mixed agent such as a silicone dispenser or a sealant.

A dispenser, sealant, or the like applied to a flat panel display such as a liquid crystal display or an organic electroluminescent display is automatically applied using an automated device such as a robot.

Such a coating apparatus is used by mounting a tube-type mixture cartridge to the discharge device, and after use, a method of exchanging it is widely adopted. As a mixture coating apparatus, the robot etc. which mount the mixture discharging apparatus are used normally.

Figure 1 shows an example of such a conventional mixture discharging device. As shown in FIG. 1, the mixture cartridge 10 is mounted in a predetermined case 20.

The mixture cartridge 10 is formed in a tubular shape by thin plastic, and has a cartridge nozzle 11 at the lower end, and a plate member 12 for pushing the mixture M inside the cartridge nozzle 11 at the upper end thereof. It is provided.

The mixture cartridge 10 is mounted to the case 20, the case 20 is provided with a size that can accommodate the mixture cartridge 10 therein, the cartridge nozzle 11 of the mixture cartridge 10 at the bottom The nozzle part 21 is provided so that () may be inserted, and the cover 22 which seals the case 20 is provided in the upper end. In addition, an air supply pipe 23 is formed in the cover 22, and air is supplied to press the plate member 12 of the mixture cartridge 10 through the air supply pipe 23.

The conventional mixture discharging device as described above is mounted in a manner in which the cartridge nozzle 11 of the mixture cartridge 10 is inserted into the nozzle portion 21 of the case 20, and then covers the cover 22 and the case 20. The plate member 12 is pressurized by supplying air into the space 24) to operate the mixture M in the cartridge 10 to be discharged to the nozzle unit 21.

By the way, in such a conventional mixture ejection apparatus, since the mixture cartridge 10 is inserted into the case 20 and pressurized air is blown over the mixture cartridge 10, this air is mixed with the mixture cartridge 10 and the case 20. Air may flow into the gap 25 between the sides. The air introduced into the gap 25 is discharged together with the mixture M when the mixture M is discharged through the nozzle portion 21 to form air bubbles in the mixture M.

In addition, the pressurized air may be introduced into the mixture cartridge 10 through the mixture cartridge 10 and the plate member 12. This also causes the deterioration of the properties of the mixture (M) and provides a cause of air bubbles.

On the other hand, if the mixture cartridge 10 is pressed too hard toward the nozzle unit 21 in order to prevent the air from being mixed into the mixture M through the nozzle unit 21, the cartridge nozzle 11 also breaks. do.

In addition, even when the used mixture cartridge 10 is to be replaced, a problem arises in that the remaining mixture flows down since the cover 22 needs to be opened and the mixture cartridge 10 removed from above.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object thereof is to provide a mixture discharging device capable of suppressing the generation of air bubbles and inducing the discharge of a precise mixture.

Another object of the present invention is to provide a mixture dispensing device which is easy to replace used mixture cartridges.

1 is a cross-sectional view showing an example of such a conventional mixture discharging device in FIG.

2 is a perspective view of the mixture discharging device according to an embodiment of the present invention,

3 is a cross-sectional view taken along line II of FIG. 2;

Figure 4 is an enlarged partial cross-sectional view showing a cover portion of the mixture discharging device according to an embodiment of the present invention.

<Brief description of the main parts of the drawing>

10: Mixture Cartridge 11: Cartridge Nozzle

12: plate member 30: case

31, 32: 1st and 2nd case 34: nozzle block

35: nozzle 37: cover

40: skirt portion 41: cover drive portion

42: air inlet 44: pressurized piston

45: air pressurizing section 46: pressure driving section

48: space part

The present invention to achieve the above object,

A case having a nozzle at one end and having a mixture cartridge accommodated therein;

A cover detachably coupled to the other end of the case, forming a predetermined space with the mixture cartridge accommodated in the case, the cover having an air inlet such that pressurized air is injected into the space; And

It is coupled to the end of the cover by pressing the end of the cartridge mixture facing each other, the skirt portion for sealing the cover and the mixture cartridge; provides a mixture dispensing apparatus comprising a.

According to another feature of the invention, the case is separated along the longitudinal direction of the mixture cartridge, it may be provided as a first case and a second case detachable from each other.

According to another feature of the invention, the nozzle block is coupled to one end of the case, the nozzle may be provided in the nozzle block.

According to another feature of the invention, the pressure portion is located in the space portion, the pressure piston for pressing the plate member of the mixture cartridge; And a pressure driving part mounted on the cover to reciprocate the pressure piston.

At this time, the pressurizing piston may be provided with an air pressurizing portion so that pressurized air injected into the space portion pressurizes the plate member of the mixture cartridge.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. The mixture dispensing apparatus according to a preferred embodiment of the present invention uses the mixture cartridge 10 as shown in FIG. 1 and is mounted on a mixture applying apparatus such as a separate robot. In the drawings to be described below, FIG. The same members as 1 are designated by the same reference numerals.

2 is a perspective view of a mixture discharging device according to an exemplary embodiment of the present invention, FIG. 3 is a cross-sectional view taken along line II of FIG. 2, and FIG. 4 is an enlarged partial cross-sectional view of the cover portion.

Referring to the accompanying drawings, a mixture dispensing apparatus according to a preferred embodiment of the present invention is a case 30, the mixture cartridge 10 is accommodated, and a nozzle 35 provided at one end of the case 30 And a cover 37 detachably coupled to the other end of the case 30.

The case 30 is processed inside such that the mixture cartridge 10 is accommodated, according to a preferred embodiment of the present invention, the first case 31 separated along the longitudinal direction of the mixture cartridge 10 and It may be provided as a second case (32). However, the present invention is not limited thereto, and the first case 31 and the second case 32 may be integrally formed. Hereinafter, the case 30 provided with the 1st case 31 and the 2nd case 32 is demonstrated centering.

One side of the first case 31 and the second case 32 are connected to each other by a connector 33 so that the first case 31 and the second case 32 can be detached from each other. The case 31 and the second case 32 are fixed to each other. As shown in FIG. 3, the second case 32 is fixed to a separate vertical plate 36.

As such, when the case 30 is separated into the first case 31 and the second case 32, the replacement of the mixture cartridge 10 may be easier, and when the mixture cartridge 10 is replaced, the case ( 30) it is not necessary to withdraw to the top to solve the problem of contamination of the inside of the case 30 flows into the mixture remaining in the cartridge.

On the other hand, the nozzle 35 is located at the other end of the case 30, according to a preferred embodiment of the present invention can be seen in Figures 2 and 3, the nozzle block 34 at the other end of the case 30 And the nozzle 35 may be formed in the nozzle block 34. The nozzle block 34 is fixed to the vertical plate 36.

When the nozzle 35 is separated from the case 30 and formed in a separate nozzle block 34, the cartridge nozzle 11 may be fixed first when the mixture cartridge 10 is replaced as described above. The cartridge nozzle 11 can be prevented from being damaged. Also, by separating the nozzle 35 and the case 30, even when pressurized air leaks through the gap between the mixture cartridge 10 and the case 30, as shown in FIG. Before flowing into the mixture through the nozzle 35, it is discharged to the outside through the connecting gap 49 of the nozzle block 34 so as not to affect the mixture of the nozzle 35.

Of course, the nozzle 35 may be integrally formed with the case 30.

On the other hand, the cover 37 is detachably coupled to the other end of the case 30.

2 to 4, the cover body 38 is slidably coupled to the vertical plate 36, and the cover 30 is connected to the end of the case 30 at an end of the cover body 38. Support 39 is in close contact with the upper end is provided. As shown in FIG. 4, the support part 39 extends to the inside of the first and second cases 31 and 32 so as to press and seal the upper end of the mixture cartridge 10 and to seal the skirt 40. ) Is provided.

As such, the cover 37 forms a predetermined space portion 48 when the cover body 38 and the support portion 39 are coupled to the case, as shown in FIG. 4, and the skirt portion below the support portion 39. The space 48 is sealed by the 40. Therefore, the coupling of the support 39 and the first and second cases 31 and 32 need not be combined so as to be completely sealed, and a predetermined gap may occur. However, since the skirt portion 40 pressurizes the mixture cartridge 10 in a state in which at least an inner side and an upper end of the mixture cartridge 10 are enclosed, it is preferable that the skirt portion 40 has its own predetermined elasticity, and is formed of a urethane material. Can be.

Since the present invention seals between the cover 37 and the mixture cartridge 10 by the skirt portion 40 as described above, the pressurized air introduced into the space portion 48 is formed between the mixture cartridge 10 and the case 30. The problem of entering into the gap can be prevented. Accordingly, the possibility of pressurized air flowing into the mixture discharged from the nozzle 35 is blocked in advance.

The skirt portion 40 is not necessarily limited to the shape shown in FIG. 4, and the skirt portion 40 is formed to seal the upper end of the mixture cartridge 10 in a manner surrounding all of the inner side, the upper side, and the outer side. May be

As shown in FIG. 2, the cover 37 is provided with an air inlet 42 and an air outlet 43. When pressurized air is injected into the space portion 48 as shown in FIG. 4 through the air inlet 42, the pressurized air pressurizes the plate member 12 of the mixture cartridge 10 and causes the mixture M to be mixed with the nozzle ( Through 35).

2 and 3, the cover 37 is attached to and detached from the case 30 by a cover driver 41 attached to the vertical plate 36. It is coupled to the upper portion of the cover body 38 slidably coupled to the vertical plate 36, thereby driving the cover body 38 in the vertical direction as shown in FIG. The cover driving unit 41 may be an air cylinder device, but is not necessarily limited thereto, and any one may be applied as long as it can slide the cover body 38.

In the present invention, instead of pressing the plate member 12 of the mixture cartridge 10 only by pressurized air as described above, the plate member 12 may be pressed by the separate pressurizing piston 44.

The pressure piston 44 is located in the space 48, and is formed to reciprocate in the case 30 by a pressure drive 46 provided through the cover 37.

The pressurizing drive part 46 is attached to the upper outer side of the cover body 38, and the piston shaft 47 is coupled to the pressurizing piston 44 through the cover body 38. Therefore, the pressurization drive unit 46 may move together when the cover body 38 is driven by the cover drive unit 41, and may operate separately to drive the pressurized piston 44. As the pressure driving unit 46, a general air cylinder or hydraulic cylinder device may be used.

As shown in FIG. 4, the pressurizing piston 44 is provided with an air pressurizing unit 45 so that pressurized air injected into the space 48 pressurizes the plate member 12 of the mixture cartridge 10. Can be. As shown in FIG. 4, the air pressurizing part 45 may be formed in the shape of a through hole in the pressurizing piston 44, but is not necessarily limited thereto. It may be made smaller than the inner diameter of 10 so that pressurized air may flow in outside the pressurizing piston 44.

Thus, according to this invention, in addition to pressing the plate member 12 of the mixture cartridge 10 by pressurized air, the said plate member 12 is pressurized by the pressurization piston 44 separately, and the discharge amount of the mixture M is discharged. Can be adjusted accurately.

On the other hand, the pressurizing piston 44 closes the mixture cartridge 10 to the inner wall of the case 30 from the inside thereof, thereby reducing the gap between the mixture cartridge 10 and the case 30. At this time, the pressure piston 44 should not damage the inner wall of the mixture cartridge 10. To this end, the pressure piston 44 is made of a material having a certain degree of ductility so as to match the ductility of the mixture cartridge 10. Can be used. Teflon material is suitable as such a material, but is not necessarily limited thereto.

As such, when the pressure piston 44 and the mixture cartridge 10 come into close contact with each other, it is possible to prevent a problem that pressurized air flows into the mixture cartridge through a gap between the mixture cartridge 10 and the plate member 12.

Next, the operation of the mixture discharging device according to a preferred embodiment of the present invention as described above will be described.

First, as shown in FIGS. 2 and 3, the cover 37 is lifted upward, and the first case 31 is opened while being separated from the case 30 to accommodate the mixture cartridge 10 in the case 30. . At this time, the pressure piston 44 is in a raised state like the cover 37.

After storing the mixture cartridge 10, the first case 31 is closed and locked to the second case 32, and the cover 37 is lowered. As shown in FIG. Keep the seal tight. In this state, the pressure piston 44 is lowered and brought into close contact with the plate member 12.

Next, pressurized air is injected into the space 48 through the air inlet 42 to pressurize the plate member 12 inside the mixture cartridge 10, and thus, the mixture M is injected into the nozzle 35. Discharge through.

On the other hand, together with the pressurization of the plate member 12 by pressurized air, the pressurizing piston 44 is also operated to pressurize the plate member 12. At this time, the amount of pressurized air and pressurization of the pressurizing piston 44 are By adjusting the speed, the amount of the mixture (M) discharge is adjusted.

When the discharge of the mixture is finished, the air discharge port 43 is opened to draw out the internal air, and the pressure piston 44 is taken out to the upper portion. After the cover 47 is opened, the first case 31 is opened to remove the used cartridge 10 from the case.

According to the present invention made as described above can obtain the following effects.

First, since the skirt is sealed between the cover and the mixture cartridge, it is possible to prevent the problem that pressurized air flows into the gap between the mixture cartridge and the case. Accordingly, the possibility of pressurized air flowing into the mixture discharged from the nozzle is blocked in advance.

Second, as the case is separated into the first case and the second case, the exchange of the mixture cartridge can be made easier, and when the mixture cartridge is replaced, there is no need to pull it out of the upper case so that the mixture remaining inside the cartridge Can solve the problem of polluting the inside of the case.

Third, as the nozzle is separated from the case and formed in a separate nozzle block, the cartridge nozzle can be fixed first when the mixture cartridge is replaced, and the cartridge nozzle can be prevented from being damaged. Also, by separating the nozzle and the case, even if pressurized air leaks through the gap between the mixture cartridge and the case, the leaked pressurized air is discharged to the outside through the connection gap of the nozzle block before entering the mixture through the nozzle. It is discharged and it does not affect the mixture of a nozzle.

Fourth, in addition to pressurizing the plate member of the mixture cartridge with pressurized air, the plate member can be pressurized by a separate pressurizing piston to accurately adjust the discharge amount of the mixture.

Fifth, the pressure piston and the mixture cartridge can be in close contact, thereby preventing the problem that pressurized air is introduced into the mixture cartridge through the gap between the mixture cartridge and the plate member.

Although described above with reference to a preferred embodiment of the present invention, those skilled in the art will be variously modified and changed within the scope of the invention without departing from the spirit and scope of the invention described in the claims below I can understand that you can.

Claims (5)

A case having a nozzle at one end and having a mixture cartridge accommodated therein; A cover detachably coupled to the other end of the case, forming a predetermined space with the mixture cartridge accommodated in the case, the cover having an air inlet such that pressurized air is injected into the space; And And a skirt portion coupled to an end portion of the cover to press the end portion of the mixture cartridge to face the cover and sealing the cover and the mixture cartridge. The method of claim 1, The case is separated along the longitudinal direction of the mixture cartridge, the mixture discharge device characterized in that it is provided with a first case and a second case detachable. The method of claim 1, A nozzle block is coupled to one end of the case, and the nozzle is provided in the nozzle block. The method of claim 1, A pressurizing piston positioned in the space portion and pressurizing the plate member of the mixture cartridge; And And a pressure driving part mounted on the cover to reciprocate the pressure piston. The method of claim 4, wherein And the air pressurizing portion is provided in the pressure piston so that the pressurized air injected into the space portion pressurizes the plate member of the mixture cartridge.