KR200493396Y1 - Syringe unit with expandable chamber - Google Patents

Abstract

The present invention is a first body provided with a chamber for accommodating a viscous liquid therein; A nozzle connected to the chamber to discharge the viscous liquid contained in the chamber; A cap provided on the upper portion of the first body; And a chamber expansion part provided between the first body and the cap to expand the capacity of the chamber.

Description

Syringe unit with chamber expansion unit {SYRINGE UNIT WITH EXPANDABLE CHAMBER}

The present invention relates to a syringe unit provided with a chamber expansion unit for discharging a viscous liquid supplied from a syringe toward an object to be discharged.

In general, in a manufacturing process of an electronic device such as a flat panel display or a semiconductor package, processes such as mutual bonding of components or filling of a fluid are performed.

Flat panel displays (FPD) such as liquid crystal displays (LCD) and organic light emitting diode (OLED) displays are manufactured by bonding two flat panels together. In order to bond the two plates, a viscous liquid such as a paste or sealant is dispensed on one of the flat plates using a dispenser.

Meanwhile, when manufacturing a semiconductor package, epoxy is dispensed through a dispenser in a die bonding process. When a viscous liquid is dispensed using a dispenser, a syringe that holds the viscous liquid is attached to the dispenser and used. It is required to replace the viscous liquid filled in the dispenser with a new syringe before it is completely consumed or consumed.

The replacement of syringes that store viscous liquids can be done manually by the operator or through some automated syringe replacement systems. The replacement of syringes that store viscous liquids can be done manually by the operator or through some automated syringe replacement systems.

As an example, Korean Patent Application Publication No. 10-2011-0066713 (published on June 17, 2011) filed by the present applicant discloses a syringe replacement system for automatically replacing a syringe and a paste dispenser having the same.

However, in the case of replacing the syringe through manual work, there is a problem that it is inconvenient and requires a lot of replacement time since the operator must directly engage. In addition, even in the case of automatic replacement of a syringe, there may be a problem in that the process of recognizing the syringe and attaching and detaching the syringe from the head unit of the dispenser is not performed accurately.

In order to solve this problem, the present applicant has applied for Korean Patent Laid-Open Publication No. 10-2017-0134088 (published on Dec. 6, 2017), "A device and method for replacing a syringe unit and a viscous liquid dispenser having the same." According to the above disclosed patent publication, a configuration for replacing a syringe stored in a syringe holder using a syringe unit replacement device is disclosed.

Republic of Korea Patent Publication No. 10-2017-0134088 (published on Dec. 6, 2017)

However, in Patent Document 1, since the syringe itself is replaced while the syringe fixing part into which the syringe is inserted is directly fixed to the head unit of the dispenser, it is necessary to change the nozzle that discharges the syringe, or when cleaning of the syringe fixing part is required. There was a problem that should be stopped.

An object of the present invention is to solve this problem and provide a syringe unit capable of more precise discharge control without delay in operation.

In addition, the present invention is to provide a syringe unit provided with a chamber expansion unit capable of discharging a viscous liquid by expanding the chamber capacity of the syringe unit and increasing the dischargeable capacity at a time as needed.

In order to achieve the above object, the present invention includes a first body having a chamber capable of accommodating a viscous liquid therein; A nozzle connected to the chamber to discharge the viscous liquid contained in the chamber; A cap provided on the upper portion of the first body; And a chamber expansion part provided between the first body and the cap to expand the capacity of the chamber. It provides a syringe unit provided with a chamber expansion including a.

In addition, the chamber expansion portion may be provided with an accommodation chamber that conforms to the chamber and accommodates a viscous liquid therein.

In addition, the accommodation chamber may have a through structure with a top and bottom opening to expand the volume of the viscous liquid in addition to the chamber.

In addition, a syringe mounting unit body may be coupled to an outer side of the chamber expansion unit, and a syringe mounting unit to which a syringe filled with a viscous liquid is coupled may be provided on the syringe mounting unit body.

In addition, the viscous liquid of the syringe may be filled into the receiving chamber in the chamber.

In addition, a second body coupled to the body may be further included, and the nozzle may be formed in the second body to have a smaller area than the first body, and may be provided with the nozzle for discharging a viscous liquid to a discharge object.

In addition, a water level detection window may be provided on the cap.

In addition, a water level detection sensor may be provided above the water level detection window to detect the level of the viscous liquid in the chamber.

In addition, a first fitting part communicating with the chamber and supplying pneumatic pressure to the chamber may be provided at one end of the cap.

In addition, the first body and the second body may be provided with a second fitting part in communication with the syringe and a third fitting part in communication with the chamber, and the second fitting part and the third fitting part may be connected by a fitting piping line. .

In addition, a diaphragm is provided inside the second body, and the diaphragm may open and close a connection passage connecting the chamber and the third fitting part.

In addition, the diaphragm may block the connection flow path by pressing a valve actuating pin, and the valve actuating pin may pressurize the diaphragm by a pressurizing operation of a pin actuator.

In addition, a first gripper support and a second gripper support may be provided on the second body.

In addition, when the syringe unit is replaced, the first gripper support part and the second gripper support part are inserted into insertion grooves provided on opposite surfaces of the first and second grippers of the syringe unit replacement device. 2 Can be gripped by the gripper.

In addition, the first gripper support portion and the second gripper support portion may be in the form of a pair of rods protruding from one side of the second body.

In addition, a connecting portion in the form of a protruding rod coupled to the fixing device may be provided at the portion of the first body opposite the first gripper support portion.

According to the present invention, there is an advantage that more precise discharge control is possible by supplying the viscous liquid stored in the syringe to the chamber and discharging the viscous liquid stored in the chamber.

In addition, according to the present invention, there is an advantage of extending the chamber capacity of the syringe unit by providing a chamber expansion unit detachable to the syringe unit.

In addition, the present invention has the effect of increasing the capacity of the chamber by simply installing the chamber expansion unit between the cap and the first body without changing the structure of the syringe unit.

1 is a view showing a viscous liquid dispenser including a syringe unit and a syringe unit replacement device.
2 is a perspective view of a syringe unit including a chamber expansion unit according to an embodiment of the present invention.
3 is a view showing a mounting process of the chamber expansion unit in the syringe unit according to an embodiment of the present invention.
4 is a side view showing before and after mounting of the chamber expansion unit in the syringe unit according to an embodiment of the present invention.
5 is a front perspective view showing a discharge portion of the syringe unit according to an embodiment of the present invention.
6 is a rear perspective view showing a discharge part of a syringe unit according to an embodiment of the present invention.
7 is a perspective view showing a discharge part of a syringe unit according to an embodiment of the present invention.
8 is a view showing a state in which a diaphragm valve structure is mounted in a supply path of a viscous liquid in a syringe unit according to an embodiment of the present invention.
9 is a view showing a state in which movement of a viscous liquid is blocked by a diaphragm valve structure in a syringe unit according to an embodiment of the present invention.
10 is a view showing a retreat state of a pin actuator in a syringe unit according to an embodiment of the present invention.
FIG. 11 is a process in which the connection flow path is opened and the viscous liquid is supplied to the chamber as the valve operation pin, which was pressing the diaphragm in the syringe unit according to the preferred embodiment of the present invention, falls from the diaphragm as much as the pin actuator retreats. It is a figure showing.
12 is a view showing a separation process of a syringe unit by a syringe unit replacement device according to an embodiment of the present invention.
13 is a view showing a state before the connection portion of the syringe unit is coupled to the head unit according to an embodiment of the present invention.
14 is a view showing a state in which the connection part of the syringe unit enters the plate of the head unit according to an embodiment of the present invention.
15 is a view showing a state in which the connection part of the syringe unit is located in the bite part of the chuck of the head unit according to an embodiment of the present invention.
16 is a view showing a state in which the connection portion of the syringe unit is bitten by the bite portion of the chuck of the head unit according to an embodiment of the present invention.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. First of all, in adding reference numerals to elements of each drawing, it should be noted that the same elements are assigned the same numerals as possible, even if they are indicated on different drawings. In addition, a preferred embodiment of the present invention will be described below, but the technical idea of the present invention is not limited thereto or is not limited thereto, and may be modified and variously implemented by a person skilled in the art.

Prior to the description of the present invention, a mechanism of a conventional syringe unit and a syringe unit replacement device will be described to aid understanding of the technology.

1 is a view showing a viscous liquid dispenser including a syringe unit and a syringe unit replacement device.

As shown in FIG. 1, the viscous liquid dispenser 10 includes a frame 20, a stage 50 installed on the frame 20 and on which an object such as a substrate to be dispensed with a viscous liquid is mounted, and a stage ( 50), a head support 30 installed across the top of the head support 30, a head unit 40 installed to be movable in the X-axis direction along the head support 30, and a viscous And a syringe unit 300 for storing and discharging liquid, and a syringe unit replacement device 100 for replacing the syringe unit 300. As an example, the head support 30 may be driven in the Y-axis direction.

In addition, a robot guide rail 60 is provided on one side of the frame 20, and the syringe unit replacement device 100 may be installed to be movable along the robot guide rail 60. In addition, a syringe unit storage table 200 for storing the syringe unit 300 before and after replacement may be provided in an accessible position of the syringe unit replacement apparatus 100.

The replacement of the syringe unit 300 is the amount of the viscous liquid stored in the syringe unit 300 mounted on the specific head unit 40, specifically, the amount of the viscous liquid stored in the syringe 310 of the syringe unit 300 to be described later. This can be done when it decreases to less than this predetermined value. Alternatively, when the type of viscous liquid to be discharged is changed, the syringe unit 300 may be replaced.

In one embodiment, the head unit 40 requiring replacement of the syringe unit 300 is moved to one side of the head support 30, and the syringe unit 300 is replaced with the syringe unit replacement device 100. I can. Meanwhile, the other head unit 40 that is not replaced may be capable of continuously discharging the viscous liquid onto the substrate loaded on the stage 50. In FIG. 1, replacement of the syringe unit 300 is performed with respect to the two head units 40 located on the left side of the head support 30, and the viscous liquid is discharged using the remaining head unit 40 as an example. Indicated.

Before describing the detailed configuration of the syringe unit according to the present invention, referring to FIG. 5, the basic configuration and operation of the syringe unit according to the present invention will be described. The viscous liquid stored in the syringe 310 is formed inside the discharge unit 320 The viscous liquid temporarily stored in the chamber 340 is transferred to and temporarily stored in the chamber 340 to be discharged through the nozzle 344.

The syringe unit according to the present invention is configured to discharge the viscous liquid stored in the syringe 310 through the nozzle 344 through the chamber 340 of the discharge unit 320 based on the configuration shown in FIG. It is characterized in that it is possible to increase the accommodation space of the chamber 340 by additionally providing the expansion part 360.

FIG. 2 is a perspective view of a syringe unit including a chamber expansion unit according to a preferred embodiment of the present invention, and FIG. 3 is a view showing a mounting process of the chamber expansion unit in the syringe unit according to a preferred embodiment of the present invention. In addition, Figure 4 is a side view showing before and after the mounting of the chamber expansion unit in the syringe unit according to an embodiment of the present invention.

Referring to FIG. 2, in the present invention, the syringe unit 300 includes a syringe 310 and a discharge unit 320. The syringe unit 300 may be replaced by the syringe unit replacement device 100.

The discharge part 320 includes a nozzle holder 321 and a cap 322. The nozzle holder 321 includes a first body 321a and a second body 321b.

In the present invention, the chamber expansion part 360 is coupled between the cap 322 and the first body 321a. By coupling the chamber expansion part 360 between the cap 322 and the first body 321a, the chamber expansion part 360 is coupled to be positioned between the first body 321a of the chamber 340 (see FIG. 4). . In one embodiment, a sealing member such as an O-ring or the like may be provided at a joint portion where the chamber expansion part 360 is coupled to another member.

An accommodation chamber 361 is provided inside the chamber expansion part 360. The accommodation chamber 361 is connected to the chamber 340 when the chamber expansion part 360 is coupled between the cap 322 and the first body 321a to provide an expanded accommodation space capable of receiving a viscous liquid. have. As an example, the accommodation chamber 361 may be a space in which the top and bottom are penetrated so that the top and bottom correspond to the chamber 340.

When the chamber expansion unit 360 is coupled between the cap 322 and the first body 321a, the syringe mounting unit body 321g including the syringe mounting unit 321c coupled to the first body 321a is the first After being separated from the body 321a, it may be coupled to the chamber expansion part 360.

In a state where the syringe 310 is coupled to the syringe mounting portion 321c, the viscous liquid of the syringe 310 is supplied to the chamber 340 by the fitting pipe line 334. Thereafter, the viscous liquid is filled in the chamber 340 and the receiving chamber 361 above the chamber.

As described above, the syringe unit 300 of the present invention may further accommodate a larger amount of viscous liquid as the space of the receiving chamber 361 in which the space of the chamber 340 is expanded.

In one embodiment, the accommodation chamber 361 is preferably formed in a larger space than the chamber 340. To this end, the height of the chamber expansion part 360 may be larger than the height of the first body 321a.

There is no limitation on the external shape of the chamber expansion part 360, but it is preferable that the external shape of the chamber expansion part 360 is formed in an external shape that conforms to the first body 321a. For example, the chamber expansion part 360 may be formed in a hollow column shape. For example, the accommodation chamber 361 provided inside the chamber expansion part 360 may be in the form of a duct in which both the top and bottom are open.

When the chamber expansion part 360 is coupled to the first body 321a, the storage capacity of the viscous liquid is doubled as much as the accommodation chamber 361 along with the chamber 340, so that a larger amount of viscous liquid can be accommodated. .

When discharging the viscous liquid onto the substrate or the like, it may be desirable to supply the viscous liquid from the syringe 310 to the chamber 340 in one discharging session and then finish discharging without additional supply. However, if the total amount of viscous liquid for one discharge session exceeds the amount that can be stored in the chamber 340, the chamber expansion unit 360 is mounted on the syringe unit 300 in advance to increase the storage capacity of the viscous liquid. It is necessary to enlarge it.

That is, according to the present invention, as the volume of the chamber 340 for temporarily storing the viscous liquid supplied from the syringe 310 can be varied, there is an advantage in that the discharge operation of the viscous liquid can be more efficiently controlled.

Next, the mounting process of the chamber expansion unit according to an embodiment of the present invention will be described with reference to FIG. 3.

3A is a state in which the cap 322 is coupled to the upper portion of the first body 321a in a state before the chamber expansion unit 360 is coupled. As an example, the cap 322 and the first body 321a may be coupled by a bolt.

When the cap 322 is coupled to the first body 321a and the capacity of the chamber 340 is to be expanded, as shown in FIG. 3(b), the first body 321a of the chamber 340 is Remove the cap 322.

As shown in (c) of Figure 3, the syringe mounting body (321g) that was coupled to the first body (321a) is also removed. As an example, the syringe mounting body 321g and the first body 321a may be coupled by a bolt.

As shown in (d) of FIG. 3, the cap 322 and the syringe mounting body 321g are separated from the first body 321a, and then the chamber expansion part 360 is placed between the cap 322 and the first body 321a. Position.

As shown in (e) of FIG. 3, the upper surface of the chamber expansion part 360 is coupled to be in close contact with the bottom surface of the cap 322, and the bottom surface of the chamber expansion part 360 is coupled to be in close contact with the upper surface of the first body 321a. . As an example, the chamber expansion part 360, the cap 322, and the first body 321a may be coupled by a coupling member such as a bolt.

The syringe mounting portion body 321g that was coupled to the first body 321a is coupled to the chamber expansion portion 360. As an example, the first body 321a and the chamber expansion part 360 may be coupled by a coupling member such as a bolt.

Although not shown in detail in the drawings, the syringe mounting body 321g and the chamber 340 may be connected by a separate flow path so that the viscous liquid inside the syringe 310 can move to the chamber 340.

Before and after the mounting of the chamber expansion unit according to an embodiment of the present invention will be described with reference to FIG. 4.

4A is a state before the chamber expansion part 360 is coupled, and the cap 322 is coupled to the upper surface of the first body 321a. The syringe mounting body 321g is coupled to the outside of the first body 321a.

4B is a state in which the chamber expansion part 360 is coupled between the cap 322 and the first body 321a. In a state in which the chamber expansion part 360 is coupled between the cap 322 and the first body 321a, the accommodation chamber 361 inside the chamber expansion part 360 and the chamber 340 inside the first body 321a Matches.

It can be seen from FIG. 4B that the storage capacity of the viscous liquid is increased by the storage chamber 361 in addition to the chamber 340.

5 is a front perspective view showing a discharge part of a syringe unit according to an embodiment of the present invention, and FIG. 6 is a rear perspective view showing a discharge part of a syringe unit according to an embodiment of the present invention. 7 is a perspective view showing a discharge part of a syringe unit according to an embodiment of the present invention.

5 and 6 show a state in which the chamber expansion part 360 is not additionally mounted, and FIG. 7 shows a state in which the chamber expansion part 360 is additionally mounted. The embodiment of FIGS. 5 and 6 and the embodiment of FIG. 7 differ only in whether or not the chamber expansion part 360 is provided, and the filling and discharging control of the viscous liquid are the same.

The discharge part 320 includes a nozzle holder 321 and a cap 322. The nozzle holder 321 includes a first body 321a and a second body 321b. In the case of mounting the chamber expansion part 360 to the discharge part 320, the chamber expansion part 360 is coupled between the cap 322 and the first body 321a, and a syringe on the outside of the chamber expansion part 360 The mounting body (321g) is coupled.

A syringe mounting portion (321c) is provided on the syringe mounting portion body (321g). The lower portion of the syringe 310 is correspondingly coupled to the syringe mounting portion 321c.

A chamber 340 in which a viscous liquid supplied from the syringe 310 is stored is provided inside the first body 321a.

It is preferable that the chamber 340 is formed in a volume smaller than the volume of the syringe 310. As an example, the volume of the chamber 340 may be 1/5 to 1/20 of the volume of the syringe 310. When the filling amount of the viscous liquid inside the chamber 340 is lower than the set level, the viscous liquid stored in the syringe 310 may be supplied to the chamber 340.

Since the chamber 340 has a volume smaller than that of the syringe 310, it is possible to precisely and precisely control the discharge of the viscous liquid. That is, the pneumatic pressure is supplied to the chamber 340 to control the supply of the viscous liquid from the chamber 340 to the nozzle 344. Since the volume of the chamber 340 is small, the pneumatic pressure can be controlled more finely.

The second body 321b may extend downward from the first body 321a. The first body 321a may be formed to have a cross-sectional area smaller than that of the first body 321a.

A nozzle 344 is provided at the bottom end of the second body 321b. The nozzle 344 may be positioned below the chamber 340 to receive the viscous liquid from the chamber 340 or may receive the viscous liquid from the chamber 340 through a separate flow path.

A first gripper support 324 and a second gripper support 326 are provided in front of the first body 321a. The first gripper support 324 and the second gripper support 326 may be disposed to form a pair. The first gripper support 324 and the second gripper support 326 may be formed to protrude toward the syringe unit replacement device 100 from one surface of the first body 321a.

5 and 6 show that the first gripper support 324 and the second gripper support 326 are arranged vertically, but in the implementation of the present invention, the first gripper support 324 and the second gripper support 326 ) Can be placed left and right. When the first gripper support portion 324 and the second gripper support portion 326 are disposed to the left and right, the left and right widths of the first body 321a may be formed larger than those shown in FIGS. 5 and 6.

The cap 322 may be provided with a water level detection window 342 for sensing the level of the viscous liquid filled in the chamber 340. The water level detection window 342 may be provided as a transparent window, and a water level detection sensor (not shown) using light may be provided above the water level detection window 342.

The water level detection sensor may be a laser distance sensor, and the viscous liquid level in the chamber 340 may be sensed by irradiating and receiving light through the water level detection window 342.

A first fitting part 331 communicating with the chamber 340 may be provided at one end of the cap 322. Pneumatic pressure may be supplied into the chamber 340 through the first fitting part 331. The viscous liquid of the syringe 310 is delivered into the chamber 340, and the viscous liquid stored in the chamber 340 is discharged to the nozzle 344 by supplying pneumatic pressure into the chamber through the first fitting part 331 Dispensing can be stopped. That is, when a positive pressure is supplied into the chamber 340, the viscous liquid in the chamber 340 is discharged through the nozzle 344, and when a negative pressure is supplied into the chamber 340, the supply of the viscous liquid to the nozzle 344 is stopped. .

A second fitting part 332 may be provided on one surface of the first body 321a. The second fitting part 332 communicates with the syringe 310 coupled to the syringe mounting part 321c of the first body 321a.

A third fitting part 333 may be provided on one surface of the second body 321b. The second fitting portion 332 and the third fitting portion 333 are connected by a fitting pipe line 334. The fitting piping line 334 provides a flow path through which a viscous liquid flows. The viscous liquid inside the syringe 310 may be supplied to the chamber 340 along the fitting pipe line 334. The viscous liquid supplied to the chamber 340 is filled in the chamber 340 and then filled in the receiving chamber 361.

The third fitting part 333 communicates with the chamber 340 provided in the first body 321a. The third fitting part 333 may be positioned between the second fitting part 332 and the first gripper support part 324.

The viscous liquid inside the syringe 310 moves along the viscous liquid movement path f such as an arrow shown in FIG. 7. Specifically, the viscous liquid inside the syringe 310 moves to the chamber 340 through the second fitting part 332, the fitting pipe line 334, and the third fitting part 333. When the viscous liquid is filled in the chamber 340, the viscous liquid moves to the receiving chamber 361.

A connection part 328 is provided on the rear surface of the first body 321a. The connection part 328 may be configured in a rod shape.

A groove 328a may be formed on the outer circumferential surface of the connection part 328. When the connection part 328 is coupled with the fixing device 500, a locking part such as a plurality of jaws provided in the chuck 510 of the fixing device 500 is inserted into the groove 328a, so that a solid coupling state can be achieved. .

A fixing hole 321e and a pinhole 321f are provided on the rear surface of the first body 321a on which the connection part 328 is provided. As an example, the fixing hole 321e and the pinhole 321f may be located above the connection part 328, and the pinhole 321f may be located below the fixing hole 321e. The pinhole 321f may be configured in plural.

The following briefly describes the process of filling the chamber and the receiving chamber with a viscous liquid.

Referring to FIG. 7, the viscous fluid in the large-capacity syringe 310 is moved into the chamber 340 so that a small amount of discharge can be controlled. The viscous liquid stored in the syringe 310 may be a paste (sealant) for bonding a flat panel display panel formed by bonding two substrates or an epoxy for a die bonding process.

Pneumatic pressure is supplied into the syringe 310 to fill the chamber 340 with a viscous liquid. As pneumatic pressure is supplied into the syringe 310, the viscous liquid inside the syringe 310 is the second fitting part 332 connecting the syringe 310 and the chamber 340, the fitting piping line 334, and the third fitting. The chamber 340 is filled through a flow path such as the part 333 or the like. The viscous liquid is filled into the receiving chamber 361 in the chamber 340.

As an example, a valve capable of controlling the flow of the viscous liquid may be provided in the viscous liquid movement path f.

The following briefly describes the viscous liquid discharge process.

Pneumatic pressure is supplied to the first fitting part 331 while the viscous liquid is filled in the chamber 340 and the accommodation chamber 361. As pneumatic pressure is supplied into the first fitting part 331 communicating with the receiving chamber 361, the viscous liquid filled in the receiving chamber 361 and the chamber 340 connects the chamber 340 and the nozzle 344. It is discharged to the discharge object 400 through the nozzle 344 through the flow path 357.

The following describes the process of supplying the viscous liquid from the syringe to the chamber. In the following description, an embodiment in which a diaphragm valve structure is applied to control the flow of the viscous liquid in the viscous liquid movement path f will be described. However, it goes without saying that the valve structure for controlling the flow of the viscous liquid in the viscous liquid movement path f in the practice of the present invention may be other than the diaphragm valve structure.

8 is a view showing a state in which a diaphragm valve structure is mounted in a supply path of a viscous liquid in a syringe unit according to an embodiment of the present invention.

Fig. 8(a) shows a state in which the pin actuator 352 presses the valve operating pin 351. 8(b) is a view showing a state in which the diaphragm 354 is mounted inside the second body 321b together with the valve operation pin 351. As shown in FIG.

9 is a view showing a state in which movement of a viscous liquid is blocked by a diaphragm valve structure in a syringe unit according to an embodiment of the present invention.

9, the pin actuator 352 presses the valve operation pin 351, the valve operation pin 351 pressurizes the diaphragm 354 to connect the connection flow path 355 to the chamber 340 ) Is blocked. For this reason, the viscous liquid of the syringe 310 cannot be supplied to the chamber 340.

10 is a view showing a state in which the pin actuator of the diaphragm valve structure is retracted in the syringe unit according to an embodiment of the present invention.

As shown in FIG. 10, the pin actuator 352 which has pressed the valve operation pin 351 to open the connection flow path 355 is retracted to release the pressurized state of the valve operation pin 351. In the depressurized state of the valve actuating pin 351, the pin actuator 352 is spaced apart from the valve actuating pin 351 by a certain distance.

FIG. 11 is a process in which the connection flow path is opened and the viscous liquid is supplied to the chamber as the valve operation pin, which was pressing the diaphragm in the syringe unit according to the preferred embodiment of the present invention, falls from the diaphragm as much as the pin actuator retreats. It is a figure showing.

As shown in FIG. 11, pneumatic pressure is supplied into the syringe 310 in order to fill the chamber 340 with a viscous liquid. As pneumatic pressure is supplied into the syringe 310, the viscous liquid inside the syringe 310 is the second fitting part 332 connecting the syringe 310 and the chamber 340, the fitting piping line 334, and the third fitting. It moves along a flow path such as the part 333 and the like.

As the pin actuator 352 retreats, the diaphragm 354 pressurization state of the valve operation pin 351 is released. In this state, the diaphragm 354, which was blocking the connection flow path 355 as shown by the arrow in FIG. 11, is pushed by the viscous liquid supplied through the third fitting part 333, so that the blocking state of the connection flow path 355 is natural. It is released. Accordingly, the viscous liquid is supplied to the chamber 340 connected to the connection flow path 355 along the connection flow path 355.

Meanwhile, pneumatic pressure is applied to the syringe 310 to supply the viscous liquid of the syringe 310 to the chamber 340. When pneumatic pressure is applied to the syringe 310, the viscous liquid of the syringe 310 flows through the second fitting part 332 and the fitting piping line 334, and the third fitting part 333 and the chamber ( It is supplied to the chamber 340 along the connection flow path 355 connecting the 340.

The following describes the separation process of the syringe unit by the syringe unit replacement device.

12 is a view showing a separation process of a syringe unit by a syringe unit replacement device according to an embodiment of the present invention.

As shown in FIG. 12, in the viscous liquid dispenser 10, the syringe unit 300 coupled to the head unit 40 may be replaced by the syringe replacement device 100.

As shown in Figure 12 (a), the first and second grippers 101 and 102 of the syringe unit replacement device 100 simultaneously grip the first gripper support 324 and the second gripper support 326 of the syringe unit 300 do.

As shown in FIG. 12(b), the syringe unit 300 is separated from the coupling area of the head unit 40 by pulling the first and second grippers 101 and 102. As the connecting portion 328 coupled to the engaging portion 510a of the chuck 510 is separated from the engaging portion 510a, the fixed state of the syringe unit 300 is released.

The syringe unit 300 should not collide with other structures during the separation process. The syringe unit 300 in a state held by the first and second grippers 101 and 102 is separated while moving horizontally by the reverse operation of the first and second grippers 101 and 102.

Since one end of the first gripper support part 324 and the second gripper support part 326 is inserted into the insertion groove 103 of the first gripper 101 and the second gripper 102 to establish a solid gripping state, the syringe unit ( 300) can be safely removed.

The syringe unit replacement device 100 places the separated old syringe unit 300 at a designated location and moves to the syringe unit storage table 200 along the robot guide rail 60. In some cases, it may be possible to store the separated old syringe unit 300 in the syringe unit storage table 200. The syringe unit replacement device 100 that has moved to the syringe unit storage rack 200 holds the new syringe unit 300 provided in the syringe unit storage rack 200 (see FIG. 1 ).

Specifically, the syringe unit replacement device 100 grips the first gripper support 324 and the second gripper support 326 of the new syringe unit 300 with the first gripper 101 and the second gripper 102.

The syringe unit replacement device 100 moves to the head unit 40 along the robot guide rail 60. The syringe unit replacement apparatus 100 couples the new syringe unit 300 to the coupling area of the head unit 40 that is empty due to the removal of the old syringe unit 300.

When the new syringe unit 300 is coupled to the coupling region of the head unit 40, the connection portion 328 of the new syringe unit 300 is coupled to the engaging portion 510a of the chuck 510 of the head unit 40. A solid coupling of the syringe unit 300 is made.

Next, the process of coupling the connection to the chuck will be described in detail.

13 is a view showing a state before the connection portion of the syringe unit is coupled to the head unit according to an embodiment of the present invention.

As shown in FIG. 13, the connection part 328 is positioned on the plate 520 before being coupled to the chuck 510. At this time, the connection part 328 exactly matches the through hole 524 of the plate 520.

14 is a view showing a state in which the connection part of the syringe unit enters the plate of the head unit according to an embodiment of the present invention.

As shown in FIG. 14, the connection part 328 is inserted into the through hole 524 in a state that exactly matches the through hole 524 of the plate 520. The inner diameter of the through hole 524 is preferably larger than the outer diameter of the connecting portion 328 for smooth insertion of the connecting portion 328.

15 is a view showing a state in which the connection part of the syringe unit is located in the bite part of the chuck of the head unit according to an embodiment of the present invention.

As shown in FIG. 15, the connection part 328 continues to move in the direction of the chuck 510 while being inserted into the through hole 524 of the plate 520, and the connection part 328 is connected to the engaging part 510a of the chuck 510. When the groove (328a) is located, it stops.

16 is a view showing a state in which the connection portion of the syringe unit is bitten by the bite portion of the chuck of the head unit according to an embodiment of the present invention.

As shown in FIG. 16, in a state where the groove 328a of the connection portion 328 is located in the engaging portion 510a of the chuck 510, the end of the engaging portion 510a is grooved by the engaging operation of the engaging portion 510a. The connection portion 328 is bitten by the chuck 510 in a state that is correctly fitted to the (328a).

As described above, it is possible to precisely control the discharge of the viscous liquid by transferring the viscous liquid from the syringe unit according to the present invention to the chamber and controlling the pressure in the chamber. In addition, the volume of the chamber containing the viscous liquid of the syringe unit may be sufficient for application of the low cross-sectional viscous liquid, but in the case of large cross-sectional application, the volume of the chamber containing the viscous liquid is large due to the large amount of viscous liquid such as sealant. Do. According to the present invention, it is possible to expand the capacity of the chamber only by mounting the chamber expansion unit without changing the basic structure of the syringe unit.

In the present invention, since the chamber expansion part is detachable, the viscous liquid can be used by removing the viscous liquid only by the chamber capacity of the first body by directly attaching the cap to the first body without mounting the chamber expansion part when applying the viscous liquid with a low cross-sectional area.

The above description is merely illustrative of the technical idea of the present invention, and those of ordinary skill in the technical field to which the present invention belongs can make various modifications, changes, and substitutions within the scope not departing from the essential characteristics of the present invention. will be. Accordingly, the embodiments disclosed in the present invention and the accompanying drawings are not intended to limit the technical idea of the present invention, but are for description, and the scope of the technical idea of the present invention is not limited by these embodiments and the accompanying drawings. . The scope of protection of the present invention should be interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

10: viscous liquid dispenser
20: frame
30: head support
40: head unit
50: stage
60: robot guide rail
100: syringe unit replacement device
101: first gripper
102: second gripper
200: Syringe unit storage table
300: syringe unit
310: syringe
320: discharge part
321: nozzle holder
321a: first body
321b: second body
321c: syringe mounting part
321e: fixed hole
321f: pinhole
321g: Syringe mounting body
322: cap
324: first gripper support
326: second gripper support
328: connection
328a: home
331: first fitting part
332: second fitting part
333: third fitting part
334: fitting piping line
340: chamber
342: water level detection window
344: nozzle
351: valve operating pin
352: pin actuator
354: diaphragm
355: connection euro
357: Euro
360: chamber expansion part
361: accommodation room
400: object to be discharged
510: chuck
510a: bite
520: plate
524: through hole
f: viscous liquid movement path

Claims (16)

A first body having a chamber for accommodating a viscous liquid therein;
A nozzle connected to the chamber to discharge the viscous liquid contained in the chamber;
A cap provided on the upper portion of the first body; And
Includes; a chamber expansion unit detachably coupled between the first body and the cap to expand the capacity of the chamber,
The viscous liquid supplied from a syringe moves to the chamber, and after the chamber is filled with the viscous liquid, moves to the receiving chamber of the chamber expansion unit, and the viscous liquid accommodated in the chamber and the chamber expansion unit is discharged through the nozzle. A syringe unit provided with a chamber expansion unit, characterized in that the. delete The method of claim 1,
The receiving chamber, in addition to the chamber, expands the receiving volume of the viscous liquid, and has a through structure having a top and bottom hole. The method of claim 1,
A syringe mounting unit body is coupled to the outside of the chamber expansion unit,
A syringe unit provided with a chamber expansion unit, characterized in that the syringe mounting unit is provided with a syringe mounting unit to which the syringe is coupled to the syringe mounting unit body. delete The method of claim 1,
Further comprising a second body coupled to the first body,
A syringe unit provided with a chamber expansion unit, characterized in that the second body is formed with a smaller area than the first body and the nozzle for discharging a viscous liquid to a discharge object is provided. The method of claim 6,
On the cap,
A syringe unit provided with a chamber expansion unit, characterized in that the water level detection window is provided. The method of claim 7,
A syringe unit provided with a chamber expansion unit, characterized in that a water level detection sensor for detecting the level of the viscous liquid in the chamber is provided above the water level detection window. The method of claim 7,
At one end of the cap,
A syringe unit having a chamber expansion unit, characterized in that the first fitting unit communicates with the chamber and supplies pneumatic pressure to the chamber. The method of claim 7,
The first body and the second body are provided with a second fitting part in communication with the syringe and a third fitting part in communication with the chamber, and the second fitting part and the third fitting part are connected by a fitting piping line. A syringe unit provided with a chamber expansion unit. The method of claim 7,
A syringe unit with a chamber expansion unit, characterized in that a diaphragm is provided inside the second body, and the diaphragm opens and closes a connection passage connecting the chamber and the third fitting unit. The method of claim 11,
The diaphragm is a syringe unit provided with a chamber expansion unit, characterized in that blocking the connection flow path by the pressurization of the valve operation pin, the valve operation pin pressurizes the diaphragm by the pressurization operation of the pin actuator. The method of claim 7,
A syringe unit with a chamber expansion unit, characterized in that the first gripper support portion and the second gripper support portion are provided on the second body. The method of claim 13,
When the syringe unit is replaced, the first gripper and second gripper support portions are inserted into insertion grooves provided on opposite surfaces of the first and second grippers of the syringe unit replacement device, and the first gripper and the second gripper Syringe unit provided with a chamber expansion portion, characterized in that gripped in. The method of claim 13,
The first gripper support and the second gripper support,
A syringe unit provided with a chamber expansion unit, characterized in that in the form of a pair of rods protruding from one side of the second body. The method of claim 13,
A syringe unit having a chamber expansion unit, characterized in that a protruding rod-shaped connection unit coupled to a fixing device is provided on the first body portion opposite the first gripper support unit.

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