KR20070014568A - Syringe for dispensing device and assembling method for the same - Google Patents

Abstract

A syringe for a dispenser is provided to ensure strict and high pressure sealing of the dispenser while allowing simple assembly thereof by having flexibly modified main body and top and bottom caps directly coupled to upper and lower portions of the main body. The syringe for a dispenser having an output nozzle for discharging constant dose of material consists of: a syringe main body(110) containing the material to be discharged; bottom cap(300) which is coupled with lower portion of the main body at one side and fixed to the nozzle at the other side; and top cap(200) which is coupled and communicated with upper portion of the main body. The upper and lower portions of the main body are directly coupled to the top and bottom caps and flexibly deformed. The syringe further has a top coupling wing(113) around outlineof the upper portion of the main body(110) in order to close between the upper portion and the top cap.

Description

Syringe for Dispensing Device and Assembling Method for the same}

1 is a perspective view of a syringe used in a conventional dispensing device.

2 is a longitudinal cross-sectional view of the syringe of FIG.

3 is a perspective view of one embodiment of a syringe for a dispensing device according to the present invention;

4 is a longitudinal cross-sectional view of the syringe of FIG.

5 is a cross-sectional view of another embodiment of a syringe for a dispensing device according to the present invention.

<Description of the symbols for the main parts of the drawings>

100: syringe body 110: the upper edge

111: first screw thread 113: upper coupling wing

121: lower edge 123: lower coupling wing

121a: Second thread 200: Upper cap

210: first groove 211: upper cap thread

300: lower cap 311: lower cap thread

313: second groove 320: nozzle insert

The present invention relates to a syringe, and more particularly, to a syringe for a dispensing apparatus having an improved structure used in the dispensing apparatus.

As the information society develops, the demand for display devices is increasing in various forms, and in recent years, various flat display devices such as liquid crystal display devices (LCDs), plasma display panels (PDPs), and electro luminescent displays (ELDs) have been developed. Has been studied, and some have already been used as display devices in many devices.

Among them, liquid crystal display devices are the most used due to their excellent image quality, light weight, thinness, and low power consumption. The liquid crystal display device is composed of a TFT (Thin Film Transistor) substrate, a color substrate, and a liquid crystal layer formed between the two substrates.

In the liquid crystal display, various patterns are formed on the TFT substrate and the color substrate, and then the liquid crystal is injected after the two substrates are bonded together. That is, the process of manufacturing the liquid crystal display device is a process of injecting the liquid crystal so that the liquid crystal is located between the substrate and the process of applying an adhesive such as paste between the substrate to bond the two substrates.

The liquid crystal dispensing apparatus is used as the equipment used in the process of injecting the liquid crystal, and the paste applicator is used as the equipment used in the process of applying the paste.

The liquid crystal discharging device includes a frame, a conveying means, a table, a liquid crystal discharging means, and a liquid crystal amount verifying means.

Here, the frame is a lower structure constituting the liquid crystal discharge device, the frame is equipped with a liquid crystal amount verification means. In addition, a transfer means is mounted to the frame, and a support is installed on the upper portion of the frame while having a space for carrying in or taking out the substrate. The support is equipped with liquid crystal discharging means for discharging liquid crystal on the substrate. In other words, the liquid crystal discharging means movable on the support base discharges the liquid crystal at a predetermined position while moving relative to the substrate.

On the other hand, the paste applicator comprises a head unit having a stage on which a substrate is mounted and a nozzle for discharging paste onto the substrate. The head unit is provided with a syringe containing paste, and the syringe is connected with the nozzle. When the paste of the syringe is exhausted during the process of forming the paste pattern, the syringe and the nozzle are exchanged. Here, the paste pattern having a predetermined shape desired by the operator is formed while the substrate and the nozzle move relative to each other.

In the above-described liquid crystal discharging device and paste applicator, a syringe for quantitative discharging is used to discharge an accurate amount of liquid crystal and paste.

1 is a perspective view showing a syringe used in a conventional dispensing device, Figure 2 is a longitudinal cross-sectional view of the syringe of FIG.

1 and 2, the syringe is coupled to the syringe body 10 is filled with a predetermined material, the nozzle support member 5 is coupled to the lower portion of the syringe body, the upper edge of the syringe body It is configured to include a syringe cap (3), and an O-ring for sealing the syringe body.

The syringe body 10 has a cylindrical shape, it is made of a metal material. An upper tab 11 is formed at an upper edge of the syringe body, and a lower insertion portion 15 is formed at a lower portion of the syringe body.

The syringe cap 3 is made of a metal material, and an upper coupling groove 3a corresponding to the upper tab 11 is formed on an inner circumferential surface of the syringe cap. And, the upper portion of the syringe cap is coupled with a pressure applying means (not shown) for discharging the paste.

An upper O-ring 7a is installed between the upper edge of the syringe body and the syringe cap 3. That is, the upper O-ring 7a is installed in the O-ring installation groove 13 formed at the upper edge of the syringe body.

The upper O-ring 7a is made of synthetic rubber, and is compressed by the syringe body 10 and the syringe lid 10 to maintain the airtightness between the syringe body and the syringe cap 10. .

The nozzle support member 5 has an "L" shape and is made of a metal material. One end of the nozzle support portion is formed with a coupling groove (5a) is inserted into the lower edge of the syringe body, the other end is coupled to the nozzle (not shown).

A lower o-ring 7b is installed between the lower edge of the syringe body and the nozzle support member 5. That is, the lower o-ring 7b is installed in the o-ring installation groove 16 formed in the lower portion of the cylinder body. Similarly, the lower o-ring 7b is made of metal and is pressed by the lower edge of the nozzle support member and the syringe body to maintain the airtightness between the syringe body and the nozzle support.

On the other hand, since the syringe is used repeatedly, foreign matter or residual residue (hereinafter referred to as 'foreign substance') may get caught in the coupling portion of the syringe, and when a foreign substance is caught, a cleaning operation is performed to remove the foreign substance.

However, the O-rings are frequently deformed due to repeated cleaning, which causes a problem of leakage of the material inside the syringe body. In addition, leakage of the material prevents the discharge of the material in a predetermined amount, which may cause defective products.

In addition, in the case of using a plurality of syringes, the number of O-rings coupled to each other is large, and the size thereof is small, making it difficult to clean and frequently lost.

In addition, the assembly is inconvenient due to the deformation of the O-ring, which causes a case in which the engagement state of the syringe is poor. In addition, since the O-ring is exposed to chemicals and is used repeatedly, the O-ring has a disadvantage in that the price is high because it must have chemical resistance and wear resistance at the same time.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a syringe for a dispensing device and an assembly method thereof, which can improve the sealing property.

Another object of the present invention is to provide a syringe for a dispensing device, which is easy to assemble and easy to manage, and a method of assembling the same.

Still another object of the present invention is to provide a syringe for a dispensing device and a method of assembling the same, which can achieve a desired performance at a low price.

In order to achieve the above object, the present invention provides a dispensing apparatus having a nozzle for quantitatively discharging a predetermined material, the syringe body containing the material discharged from the nozzle, one side is the lower portion of the syringe body; Coupled, the other side includes a lower cap coupled to the nozzle, and an upper cap coupled to communicate with an upper portion of the syringe body, and the upper and lower portions of the syringe body are directly coupled to the upper cap and the lower cap. It provides a syringe for a dispensing device, characterized in that the elastic deformation.

In order to seal between the upper portion of the syringe body and the upper cap, it is preferable that the upper coupling wing is integrally provided at the upper edge of the syringe body.

In addition, a lower coupling wing may be integrally provided at the lower edge of the syringe body to seal between the lower portion of the syringe body and the lower cap.

The upper cap is preferably provided with a first groove corresponding to the upper coupling wing. In addition, the lower cap may be provided with a second groove corresponding to the lower coupling wing.

When pressure is applied to the material contained in the syringe body, the upper coupling wing and the lower coupling wing may be deformed in the direction of the inner peripheral surface of the upper cap and the lower cap.

The syringe body is made of a plastic material having elasticity, and may be used for single use.

The upper cap is formed in the upper cap screw thread of a predetermined shape, the upper edge of the syringe body is preferably formed with a first screw thread corresponding to the upper cap screw thread is screwed together.

The lower cap is formed with a lower cap screw thread of a predetermined shape, the lower edge of the syringe body is preferably formed with a second screw thread corresponding to the lower cap screw thread is screwed together.

One side of the upper coupling wing and the lower coupling wing is preferably formed to be inclined at a predetermined angle.

The upper and lower portions of the syringe body may have a predetermined inclination angle, and may be fitted with the upper cap and the lower cap, respectively.

According to another embodiment of the present invention, the present invention comprises the steps of coupling the nozzle for discharging a predetermined material with the lower cap, directly coupling the lower edge of the syringe body having elasticity with the lower cap, the syringe Injecting the material into the body, and provides a method of assembling the syringe for the dispensing device comprising the step of directly coupling the upper edge of the syringe body having elasticity with the upper cap.

Hereinafter, with reference to the accompanying drawings, a preferred embodiment of the present invention that can realize the above object will be described.

The same components as in the related art are denoted by the same names and the same reference numerals for convenience of description, and detailed description thereof will be omitted.

3 is a perspective view showing an embodiment of a syringe for a dispensing device according to the present invention, Figure 4 is a longitudinal cross-sectional view of FIG.

3 and 4, a nozzle (not shown) is provided at one end of the syringe for dispensing device to discharge a predetermined amount of a predetermined material. And, the syringe connected to the nozzle (not shown) is the syringe body 100 containing the material to be discharged, the lower cap 300 is coupled to the lower portion of the syringe body, is coupled to the upper portion of the syringe body It is configured to include an upper cap 200.

The intermediate coupling member is not installed between the lower and lower cap 300 of the syringe body, the upper and upper cap 200 of the syringe body. That is, the lower portion of the syringe body is directly coupled to the lower cap 300, and the upper portion of the syringe body is directly coupled to the upper cap 200.

The syringe body 100 has a cylindrical shape and is made of a plastic material having elasticity. And, the syringe body 100 is exchangeable, it is preferable to have a strong chemical resistance to the chemical.

An upper edge 110 protrudes outward from the syringe body at an upper end of the syringe body, and a first screw thread 111 having a predetermined shape is formed on an outer circumferential surface of the upper edge. In addition, the upper coupling wing 113 is integrally formed at the end of the upper rim for airtightness between the upper portion of the syringe body and the upper cap 200.

The upper coupling wing 113 is formed to be inclined at a predetermined angle from the lower side to the upper side based on the syringe body. More specifically, one side surface of the upper coupling wing protrudes while forming a perpendicular to the upper surface of the upper edge, the other side is formed to be inclined downward in the outer direction of the upper edge.

A lower cap inserting portion 120 is formed at a lower end of the syringe body, and a lower edge 121 protrudes outward from an edge of the lower cap inserting portion 120, and an outer circumferential surface of the lower border 121 is formed. The second screw thread 121a is formed in a predetermined shape. In addition, the lower coupling wing 123 is integrally formed at the end of the lower rim for the airtightness between the lower portion of the syringe body and the lower cap 300. One side of the coupling wing protruding in the lower direction of the lower border 121 is formed perpendicular to the lower surface of the lower edge, the other side is formed to be inclined in the outer direction of the lower edge.

The upper cap 200 is made of a metal material, the upper portion of the upper cap is connected to the pressure applying means (not shown) for applying pressure to a material contained in the syringe, the lower portion of the upper cap It is coupled with the upper edge 110 of the body. An upper coupling groove 210 coupled to the upper edge 110 is formed below the upper cap. The upper coupling groove has an upper cap thread 211 corresponding to the first screw thread 111 of the syringe body and a first groove 213 corresponding to the upper coupling wing 113 of the syringe body. . The first groove 213 is formed at one end of the upper cap screw thread 211.

The lower cap 300 is made of a metal material, the upper portion of the lower cap is coupled to the lower portion of the syringe body 100, the lower portion of the lower cap is connected to the nozzle (not shown). The lower cap is formed with a lower coupling groove 310 coupled with the lower border 121. The lower coupling groove 310 has a lower cap thread 311 corresponding to the second thread 121a of the syringe body and a second groove 313 corresponding to the lower coupling wing 123 of the syringe body. Formed. The second groove 313 is formed at one end of the lower cap screw thread 311. The lower cap is provided with a nozzle insert 320 into which a nozzle (not shown) is inserted. Of course, the nozzle may be screwed with the lower cap.

Looking at the operation of the syringe having the above-described structure as follows.

In order to couple the upper border 110 and the upper cap 200 of the syringe body, the operator combines the first screw thread 111 formed on the outer circumferential surface of the upper border and the upper cap screw thread 211 formed on the upper cap. Then, the upper coupling wing 113 formed at the end of the first screw thread is inserted into the first groove 213 formed in the upper coupling groove.

Similarly, in order to couple the lower rim 121 and the lower cap 300 of the syringe body, the operator engages the second cap 121a formed on the outer circumferential surface of the lower rim and the lower cap thread 311 formed on the lower cap. . Then, the lower coupling wing 123 formed at the end of the second screw thread is inserted into the second groove 313 formed in the lower coupling groove.

Here, when pressure is applied to a material stored inside the syringe body by a pressure applying means (not shown) connected to the upper cap 200, the material exerts pressure on the syringe body. Then, the upper coupling wing 113 having elasticity is subjected to a force in the outward direction of the upper edge, it is coupled more closely to the upper cap 200. That is, the syringe body 100 is screwed with the upper cap 200, the upper coupling wing 113 not only increases the fastening force of the syringe body 100 and the upper cap 200, but also the syringe The body 100 and the upper cap 200 will be more completely sealed.

In the combination of the lower cap 300 and the syringe body 100, likewise, when the material stored in the syringe body is subjected to pressure, the material exerts pressure on the lower coupling wing 123. Then, the lower coupling wing 123 is deformed because it is made of an elastic material. That is, the lower coupling wing 123 receives a force in the outward direction of the lower edge, and is coupled to the lower cap 300 to be in close contact. Therefore, the lower cap 300 and the syringe body 100 is more completely sealed. In addition, since the syringe body is made of a material having elastic properties such as plastic, the syringe body has an advantage of being inexpensive and disposable.

Looking at the process of assembling the syringe briefly as follows.

First, the operator inserts a nozzle (not shown) into the nozzle insert 320 formed in the lower cap 300, so that the end of the nozzle is exposed to the outside of the lower cap 300.

Then, the operator combines the lower border 121 and the lower cap 300 of the syringe body. That is, the lower border 121 is inserted into the lower coupling groove 310 of the lower cap while being screwed. Thereafter, the worker injects a predetermined substance into the syringe body. In the case of a paste applicator, paste is injected, and in the case of a liquid crystal discharging device, liquid crystal is injected.

Next, the operator combines the upper border 110 and the upper cap 200 of the syringe body. That is, the upper edge 110 is inserted into the upper coupling groove 210 of the upper cap while being screwed. Then, the assembly process of the syringe is completed. Of course, the nozzle may be screwed to the lower cap after the syringe body is coupled.

5 is a cross-sectional view showing another embodiment of the syringe for the dispensing device according to the present invention.

Referring to FIG. 5, unlike the above-described embodiment, the syringe body does not have a separate edge protruding from the syringe body, and a separate thread is not formed.

That is, the syringe according to the present embodiment includes a syringe body 500, an upper cap 600 directly coupled to an upper portion of the syringe body, and a lower cap 700 directly coupled to a lower portion of the syringe body. It is composed.

Here, the syringe body is made of a material such as plastic having elasticity, the upper cap 600 and the lower cap 700 is made of a material such as metal.

The outer diameter of the syringe body has a larger value than the inner diameter of the upper coupling groove 610 formed in the upper cap 600. At this time, the operator combines the syringe body 500 and the upper cap 600 using an interference fit method. Since the syringe body 500 is an elastic material having elasticity, after the syringe body is coupled, the syringe body 500 has elastic restoring force in the radial direction of the syringe body. Therefore, the upper cap 600 and the syringe body 600 are combined in a state where the sealability is improved.

In addition, the upper coupling wing 511 is formed to protrude from the upper end of the syringe body. The upper coupling wing 511 is inserted into the third groove 611 formed in the upper cap. The upper coupling wing serves to more completely seal the upper and upper cap 600 of the syringe body as in the above-described embodiment. Detailed description thereof is the same as in the above-described embodiment, and thus will be omitted.

Similarly, the outer diameter of the lower inserting portion 520 positioned at the lower end of the syringe body has a larger value than the inner diameter of the lower cap 700, and the lower inserting portion 520 and the lower cap 700 are interference fit methods. Are combined. That is, the lower inserting portion 520 is inserted into the lower coupling groove 710 formed in the lower cap.

A lower coupling wing 521 is protruded from a lower surface of the lower inserting portion 520. The lower coupling wing 521 is inserted into the fourth groove 711 formed in the lower cap. The lower coupling wing 521 serves to more completely seal the lower cap and the lower cap of the syringe body. Detailed description thereof is the same as in the above-described embodiment, and thus will be omitted.

On the other hand, the present invention is not limited to the above-described embodiment, the upper cap and the upper portion of the syringe body is screwed, the lower cap and the lower portion of the syringe body may be coupled in an interference fit method. Of course, the reverse is also possible.

In addition, the syringe is not limited to the paste applicator and the liquid crystal dispensing apparatus, and is applicable to all equipment for quantitative discharging of a predetermined substance. For example, an industrial syringe etc. can be mentioned.

 The present invention is not limited to the above-described embodiments, and those skilled in the art can make modifications without departing from the spirit of the present invention, and such modifications are within the scope of the present invention.

The syringe for the dispensing device according to the present invention described above has the following effects.

First, there is an advantage that can be effectively sealed between the syringe body and the upper / lower cap by forming the coupling wing having an elastic on the upper / lower edge of the syringe body. In addition, it is possible to discharge a more accurate amount by using a syringe to ensure a high-pressure sealability, thereby reducing the defective rate of the product.

Second, in the coupling of the syringe, there is an advantage that the assembly is easy by directly coupling the upper and upper caps of the syringe body, the lower and lower caps of the syringe body, without using an intermediate coupling member such as an O-ring.

Third, it is convenient to manage because the number of parts to be combined is reduced, there is an advantage that the cleaning (cleaning) operation is convenient because it does not use an intermediate coupling member such as an O-ring having a small size.

Fourth, there is an advantage that the desired performance can be obtained at a lower price by manufacturing the syringe body made of a material such as plastic having elasticity. In addition, since the syringe body can be used for a single use, there is an advantage in that the time administered for the cleaning operation can be reduced.

Claims (12)

A dispensing apparatus having a nozzle for discharging a predetermined substance quantitatively, A syringe body in which a substance discharged from the nozzle is contained; One side is coupled to the lower portion of the syringe body, the other side is the lower cap coupled to the nozzle; And, And an upper cap coupled to communicate with an upper portion of the syringe body, wherein the upper and lower portions of the syringe body are directly coupled to the upper cap and the lower cap and are elastically deformed. . The method of claim 1, Dispensing device syringe, characterized in that the upper coupling wing is integrally provided on the upper edge of the syringe body to seal between the upper and upper cap of the syringe body. The method of claim 2, Dispensing device syringe, characterized in that the lower coupling wing is integrally provided on the lower edge of the syringe body to seal between the lower and lower cap of the syringe body. The method according to claim 2 or 3, Dispensing device syringe, characterized in that the upper cap is provided with a first groove corresponding to the upper coupling wing. The method of claim 3, Dispensing device syringe, characterized in that the lower cap is provided with a second groove corresponding to the lower coupling wing. The method of claim 3, When the pressure is applied to the material contained in the syringe body, the upper coupling wing and the lower coupling wing is a syringe for the dispensing device, characterized in that the deformation in the direction of the inner peripheral surface of the upper cap and the lower cap. The method according to any one of claims 1 to 3, The syringe body is made of a plastic material having elasticity, the syringe for dispensing device, characterized in that it is used for single use. The method of claim 2, The upper cap is formed on the upper cap screw thread of a predetermined shape, the upper edge of the syringe body is formed with a first screw thread corresponding to the upper cap screw thread is formed in the dispensing device cylinder G. The method of claim 3, The lower cap is formed in the lower cap screw thread of a predetermined shape, the lower edge of the syringe body is formed with a second screw thread corresponding to the lower cap screw thread is formed, the syringe for the dispensing device, characterized in that screwed together . The method of claim 3, One side of the upper coupling wing and the lower coupling wing syringe for a dispensing device, characterized in that formed inclined at a predetermined angle. The method of claim 1, The upper and lower portions of the syringe body has a predetermined angle of inclination, and the syringe for the dispensing device, characterized in that the interference with the upper cap and the lower cap, respectively. Coupling the nozzle for discharging a predetermined substance to the lower cap; Directly coupling a lower edge of the lower body with the elastic syringe body; Injecting the substance into the syringe body; And, Assembling a syringe for a dispensing device comprising the step of directly coupling the upper cap and the upper cap of the syringe body having elasticity.

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