TWI447493B - Apparatus to fix syringe - Google Patents

Description

Device for fixing a syringe

The present invention relates to an apparatus for fixing a syringe, and more particularly to fixing a syringe by simultaneously pressing a nozzle holder block in which a syringe is inserted in horizontal and vertical directions. device.

In the manufacture of the liquid crystal display device, the paste is applied onto the glass substrate by a paste dispensing device to have a predetermined pattern.

Typically, the ointment drip device comprises: a stage to which the substrate is mounted; a dispensing head to which the nozzle for discharging the paste to the substrate is attached to the drip head; a column The drip head is mounted to the column; and a controller that controls movement of the column and the drip head.

A syringe containing the paste is attached to the drip head and connected to the nozzle. The above-configured paste dripping device forms a predetermined paste pattern while changing the relative position between the substrate and the nozzle. Specifically, as the paste is discharged, the substrate moves in one direction, and the drip head mounted to the column moves perpendicular to the moving direction of the substrate.

1 is a perspective view schematically showing the structure of a drip head using a paste dripping device according to a prior art syringe fixing device. 2 is a perspective view of the syringe fixing device of the drip head.

The prior art drip head 110 includes a main block that is mounted to a linear motion device (not shown) that is mounted to a column of the ointment drip device (not shown) a head block 140, a syringe 150 containing a paste is detachably mounted to the head block 140; a horizontal moving unit 130 that horizontally moves the head block 140 a predetermined distance forward; And a nozzle (not shown) that is mounted to the lower end of the head block 140.

The syringe 150 is removably secured to the syringe fixture 160 disposed in the lower portion of the head block 140. The syringe fixing device 160 includes: a pair of fixing parts 160a that are provided to the head block 140 to face each other; a nut bracket 160b that is mounted to the outside of the corresponding fixing part 160a; and an anti-separation plate ( A separation prevention plate) 160c that is rotatably mounted to one of the fixed parts 160a.

The nozzle holder is mounted to the lower end of the syringe 150. A nozzle block 150a having a T-shape is mounted to the nozzle holder for mounting the nozzle holder to the syringe fixture 160. The syringe 150 is inserted into the nozzle holder of the nozzle block 150a.

Both ends of the separation preventing plate 160c are horizontally pressed by a bolt 160ca to fix and release the nozzle block 150a with respect to the fixed part 160a. A lever 160ba is placed at an upper portion of the corresponding nut bracket 160b to vertically press and fix the nozzle block 150a from the upper portion.

The nozzle block 150a is fixed to the drip head 110 in the following manner.

In a state where one end of the separation preventing plate 160c is released and pivoted outward, the nozzle block 150a formed at one end of the syringe 150 is pushed in from the front of the syringe fixing device 160 to be inserted into the fixing part 160a and the nut holder In the space between the shelves 160b. Next, the separation preventing plate 160c is pivoted back to close the front side of the fixed part 160a. Next, the nozzle block 150a is fixed by being horizontally and vertically pressed by the bolt 160ca and the lever 160ba.

However, in the prior art plaster drip device described above, it takes a lot of time to replace the syringe because the connection and separation of the drip head 110 is complicated. In addition, the washers of the bolts 160ca and the lever 160ba may be lost.

In addition, when the bolt 160ca and the lever 160a are tightened, it is necessary to apply pressure equally to maintain a uniform fixed state. However, it is not feasible to simultaneously apply equal pressures in the horizontal direction and the vertical direction at four positions by the bolt 160ca and the lever 160ba. Since the fixed state of the nozzle block 150a is minutely changed according to the operator, it is necessary to monitor a point distance after replacing the syringe and reinstalling the nozzle block 150a.

The present invention provides a syringe securing device that achieves a quick and convenient replacement of the syringe of the drip head. The present invention also provides a syringe fixing device that achieves stable replacement of the syringe of the drip head regardless of the operational characteristics of the operator. The present invention further provides a syringe fixing device that employs a pressing member capable of simultaneously pressing an outer surface of a nozzle block in a plurality of directions.

According to an exemplary embodiment, a syringe fixing apparatus includes: a nozzle block including an insertion hole into which a nozzle holder of a syringe is inserted; a base configured to include a connection in which a nozzle block is inserted And a one or more pressing members configured to simultaneously press the outer surface of the nozzle block inserted in the connecting portion in the horizontal direction and the vertical direction such that the nozzle block closely contacts the base.

The pressing member may include: at least one hinge block adapted to simultaneously press an outer surface of the nozzle block in a horizontal direction and a vertical direction by a hinge; and a hinge block fixing body, It is adapted to support the hinge block by a screw connection.

The hinge block can be a single cast part having a multi-layered base structure and includes an upper hinge block protruding with a hinge shaft and a lower hinge block configured to slide laterally on the upper surface of the base.

The hinge block fixing body may include: a screw hole, one end of a tightening bolt is tightened and released in the screw hole; and a fixing bolt fixing the hinge block fixing body To the pedestal.

The above and other objects, features and advantages of the present invention will become more <RTIgt;

The exemplary embodiments can be understood in more detail from the following description taken in conjunction with the drawings.

Hereinafter, specific embodiments will be described in detail with reference to the accompanying drawings. However, the invention may be embodied in different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and the scope of the invention will be fully conveyed by those skilled in the art. The same reference numerals are used throughout the drawings to refer to the same elements.

FIG. 3 is a perspective view showing a state before the nozzle block is connected to the syringe fixing device according to an exemplary embodiment. Figure 4 is a perspective view showing a state after the nozzle block is attached to the syringe fixing device. FIG. 5 is a detailed view of a pressing member according to an exemplary embodiment.

The drip head includes a head block 140 having a plate shape and mounted to a main block (not shown) to be movable up and down. A syringe fixture 200 adapted to connect and detach the syringe is provided at a lower portion of the head block 140.

The syringe fixing device 200 includes: a nozzle block 210 into which the nozzle holder of the syringe is inserted; a base 220 disposed at a lower portion of the head block 140; and a pressing member adapted to be simultaneously in the horizontal and vertical directions The outer surface of the nozzle block 210 is pressed.

The nozzle block 210 has a T-shape and includes a body 210a and a wing 210b. When the nozzle block 210 is coupled to the base 220, the wings 210b are disposed at the upper surface of the base 220.

An insertion hole 211 is formed on the upper surface of the nozzle block 210 to receive the nozzle holder of the syringe. A connection bar 212 protrudes horizontally from one end of the nozzle block 210. When the nozzle block 210 is coupled to the base 220, the connecting strip 212 is inserted into the connection recess 221 of the base 220. According to this, the connection is achieved between the nozzle block 210 and the base 220.

The base 220 is disposed at a lower portion of the head block 140 of the drip head such that the head block 140 is coupled to one side of the upper surface of the base 220. The base 220 includes a connecting portion to insert the nozzle block 210 therein. For example, a connecting portion having a well-shaped shape in which the front side is cut out may be formed at the front of the base 220. Therefore, the T-shaped nozzle block 210 is inserted into the well-shaped connecting portion of the nozzle block 210 in the Y-axis direction. The wing portion 210b of the inserted nozzle block 210 is supported by the upper surface of the base 220.

The pressing member makes the nozzle block 210 by simultaneously pressing the outer surface of the nozzle block 210 inserted in the connecting portion in the Y-axis direction in the horizontal direction and the Z-axis direction in the vertical direction using a dedicated medium (for example, the hinge 235). In close contact with the base 220. That is, one end of the hinge 235 that rotates about the hinge shaft 236 horizontally presses the front surface of the wing portion 210b of the nozzle block 210 in the Y-axis direction. The other end of the hinge 235 brings the nozzle block 210 into close contact with the base 220 by pressing down the upper surface of the wing portion 210b of the nozzle block 210 in the Z-axis direction.

To this end, the pressing member includes a hinge block fixing body 240 and a hinge block 230.

Each of the hinge block fixing bodies 240 includes a screw hole 242, and one end of a tightening bolt 231 is tightened and released in the screw hole 242. As the tightening bolt 231 passing through the lower hinge block 230b forms a screw connection with the screw hole 242, the lower hinge block 230b is fixed to the hinge block fixing body 240.

The hinge block fixing body 240 is integrally formed with the base 220. However, according to another embodiment, the hinge block fixing body 240 may be fixed to the base 220 by a fixing bolt 241 that passes through the hinge block fixing body 240 from the upper portion to the lower portion.

The hinge block 230 is a body adapted to support the hinge 235, and the hinge 235 presses the outer surface of the nozzle block 210 in the horizontal and vertical directions. Each of the hinge blocks 230 can be a single cast part having a multi-layered base structure comprised of an upper hinge block 230a and a lower hinge block 230b.

The upper hinge block 230a includes a hinge shaft 236 that serves as the axis of rotation of the hinge 235. The hinge 235 has an L shape and rotates around the hinge shaft 236.

Since the hinge 235 is rotatable about the hinge shaft 236, the front and upper surfaces of the wing portion 210b of the nozzle block 210 can be simultaneously pressed as the hinge block 230 is in close contact with the hinge block fixing body 240 by the tightening bolt 231. By.

Therefore, when the hinge block 230 is tightened horizontally (ie, in the Y-axis direction) toward the hinge block fixing body 240 by the tightening bolt 231, one end of the hinge 235 disposed at the hinge block 230 horizontally presses the nozzle in the Y-axis direction. The front surface of the wing portion 210b of the block 210. Next, when the hinge block 230 is further tightened toward the hinge block fixing body 240 in the Y-axis direction, the end of the hinge 235 is repelled by the front surface of the wing portion 210b of the nozzle block 210 in the opposite direction to the pressing direction. Pushed up, so the rotary pressing force is supplied to the other end of the hinge 235. The rotational pressing force generated in the other end of the hinge 235 presses the upper surface of the wing portion 210b of the nozzle block 210 in the Z-axis direction.

The lower hinge block 230b slides laterally along the X-axis on the upper surface of the base 220. The lower hinge block 230b can be fixed at a predetermined position of the hinge block fixing body 240 by means of the tightening bolt 231.

Each of the lower hinge blocks 230b includes a slot hole 232 extending in the direction in which the nozzle block 210 is inserted, and on the base 220 along the tightening bolt 231 inserted in the slot 232 The surface slides laterally along the X axis.

The tightening bolt 231 is inserted into the slot 232, and the lower hinge block 230b is tightly fixed to the hinge block fixing body 240. The tightening bolt 231 is composed of a head portion 231a, a bolt bar 231b, and a screw end 231c. The head 231a of the tightening bolt is formed to be larger than the slot 232. A threaded screw end portion 231c is formed at one end of the bolt bar 231b through which the slot 232 is inserted.

Therefore, when the bolt bar 231b is inserted into the slot 232 and the screw connection is tightly formed in the screw hole 242 formed at the hinge block fixing body 240, the lower hinge block 230b can be tightly fixed to the hinge block fixing body 240.

Figure 6 illustrates the operation of the hinge in accordance with the tightening operation. After the nozzle block 210 is inserted (as shown in FIG. 6(a)), the hinge block 230 slides to the right in the X-axis direction (as shown in FIG. 6(b)), so that one end of the hinge 235 contacts the nozzle block. The front surface of the 210, and the other end of the hinge 235 contacts the upper surface of the nozzle block 210. Next, when the hinge block 230 is tightened by the tightening bolt 231 in the Y-axis direction and is in close contact with the hinge block fixing body 240, the hinge 235 of the hinge block 230 is simultaneously pressed toward the hinge block fixing body 240 to closely contact the nozzle The front surface and the upper surface of the block 210.

In other words, when the end of the hinge 235 supplies a horizontal pressing force in the Y-axis direction to closely contact the front surface of the nozzle block 210, at the same time, the repulsive force of the nozzle block 210 due to the close contact in the Y-axis direction A rotational force is generated at the hinge. Therefore, the vertical pressing force in the Z-axis direction is supplied to the upper surface of the nozzle block 210 by the other end of the hinge 235. Therefore, when the lower hinge block 230b is tightened by the tightening bolt 231 and is in close contact with the hinge block fixing body 240, the hinge 235 can simultaneously press the front surface and the upper surface of the nozzle block 210 in the Y-axis direction and the Z-axis direction. By. Therefore, the nozzle block 210 is pressed and fixed toward the hinge block fixing body 240 by the simultaneous pressing force of the hinge 235.

Hereinafter, a process of connecting the nozzle block to the syringe fixing device of the above configuration will be described.

For ease of explanation, the process of tightening and joining the nozzle block after sliding the hinge block composed of the upper hinge block and the lower hinge block is illustrated in FIGS. 7 to 9.

FIG. 7 illustrates a state in which the hinge block 230 is completely slid to the peripheral side and the nozzle block 210 has not been inserted into the susceptor 220.

FIG. 8 illustrates a state in which the hinge block 230 is completely slid to the peripheral side and the nozzle block 210 is inserted into the susceptor 220.

After the nozzle block 210 is inserted into the base 220, the hinge block 230 slides inward relative to the tightening bolt 231 such that the hinge 235 contacts the upper surface and the front surface of the nozzle block 210. More specifically, the left hinge block 230 slides to the right, and the right hinge block 230 slides to the left such that the hinge 235 contacts the upper surface and the front surface of the nozzle block 210. Next, the tightening bolt 231 is tightened to supply the pressing force to the surface of the nozzle block 210 in both the vertical and horizontal directions by the hinge 235. Therefore, the nozzle block 210 completely contacts the susceptor 220 in the horizontal and vertical directions. Here, the simultaneous tightening of the two tightening bolts 231 is exemplary.

The separation of the nozzle block 210 can be achieved in the reverse order of Figures 7-9.

That is, in the prior art syringe fixing device shown in FIGS. 1 and 2, the nozzle block 210 is pressed by the bolt 160ca and the lever 160ba in the horizontal direction in the Y-axis direction and the vertical direction in the Z-axis direction, And it is tightly connected to the head block 140. However, according to this method, it is practically impossible to apply equal pressure by simultaneously tightening the bolt and the lever, and eventually a slight difference in the fixed state of the nozzle block will be caused depending on the replacement operator.

On the other hand, the embodiment can simultaneously press the front surface and the upper surface of the nozzle block 210 in the Y-axis direction and the Z-axis direction using a single hinge 235, thereby achieving close contact between the nozzle block 210 and the susceptor 220. .

Although the embodiment has been explained with respect to a hinge type medium having an L-shape, any other structure may be applied as long as the outer surface of the nozzle block 210 can be simultaneously pressed in the Y-axis direction and the Z-axis direction and close contact is achieved. can.

Further, although the embodiment uses a single pressing member to simultaneously press the upper surface and the front surface of the nozzle block 210, two or more pressing members may be provided to press at least one portion of the outer surface of the nozzle block 210. For example, the hinge 235 can be formed on both sides (as shown in FIG. 4) to press the two outer sides of the nozzle block 210, respectively.

The embodiment has been explained in relation to a syringe fixation device. However, the syringe fixing device can be applied to a drip device that instills a paste by a syringe containing a paste, or to any other device that uses a syringe.

According to an exemplary embodiment, since the syringe is fixed by the hinge system, the replacement of the syringe is performed quickly and conveniently. In addition, unlike conventional bolt systems, the hinge system maintains the fixed state of the syringe in a stable and uniform manner. Since the replacement is performed at a uniform pressure, the error with respect to the position of the laser spot of the nozzle and the sensor is reduced, thus increasing the processing efficiency. In addition, the loss of the washers of the lever and the bolt can be prevented during replacement.

Although the syringe fixing device has been described with reference to the specific embodiments, it is not limited thereto. It will be apparent to those skilled in the art that various modifications and changes can be made in the present invention without departing from the spirit and scope of the invention as defined by the appended claims.

While the present invention has been described in its preferred embodiments, the present invention is not intended to limit the invention, and the present invention may be modified and modified without departing from the spirit and scope of the invention. The scope of protection is subject to the definition of the scope of the patent application.

110. . . Drip head

130. . . Horizontal drive unit

140. . . Head block

150. . . syringe

150a. . . Nozzle block

160. . . Syringe fixation device

160a. . . Fixed part

160b. . . Nut bracket

160c. . . Anti-separation plate

200. . . Syringe fixation device

210. . . Nozzle block

210a. . . main body

210b. . . Wing

211. . . Insertion hole

212. . . Connecting strip

220. . . Pedestal

221. . . Connection recess

230. . . Hinge block

230a. . . Upper hinge block

230b. . . Lower hinge block

231. . . Tightening bolt

231a. . . head

231b. . . Bolt bar

235. . . Hinge

236. . . Hinge shaft

240. . . Hinge block fixing body

241. . . Fixing bolts

242. . . screw hole

1 is a perspective view schematically showing the structure of a drip head using a paste dripping device according to a prior art syringe fixing device.

Figure 2 is a perspective view of the syringe securing device of the drip head.

FIG. 3 is a perspective view showing a state before the nozzle block is connected to the syringe fixing device according to an exemplary embodiment.

4 is a perspective view showing a state after the nozzle block is connected to the syringe fixing device according to an exemplary embodiment.

FIG. 5 is a detailed view of a pressing member according to an exemplary embodiment.

6(a) to 6(b) are views showing an operational state of a hinge according to an exemplary embodiment.

FIG. 7 is a view showing a nozzle block according to an exemplary embodiment before insertion.

FIG. 8 is a view illustrating a nozzle block according to an exemplary embodiment after insertion.

Figure 9 is a view showing a nozzle block that is tightly coupled by pressure applied horizontally and vertically by a hinge.

200. . . Syringe fixation device

210. . . Nozzle block

210a. . . main body

210b. . . Wing

211. . . Insertion hole

220. . . Pedestal

221. . . Connection recess

230. . . Hinge block

230a. . . Upper hinge block

230b. . . Lower hinge block

231. . . Tightening bolt

235. . . Hinge

236. . . Hinge shaft

240. . . Hinge block fixing body

241. . . Fixing bolts

242. . . screw hole

Claims (11)

A syringe fixing device comprising: a nozzle block including an insertion hole into which a nozzle holder of a syringe is inserted; a base including a connection portion into which the nozzle block is inserted; and a Or one or more pressing members configured to simultaneously press the outer surface of the nozzle block inserted into the connecting portion in a horizontal direction and a vertical direction such that the nozzle block closely contacts the base, wherein The pressing member includes at least one hinge block adapted to simultaneously press the outer surface of the nozzle block in a horizontal direction and a vertical direction by a hinge. The syringe fixing device of claim 1, wherein the nozzle block has a T-shape and includes the insertion hole disposed at an upper surface thereof to receive the nozzle holder of the syringe . The syringe fixing device of claim 2, wherein the base comprises the connecting portion, the connecting portion having a U-shape open to the front side. The syringe securing device of claim 1, wherein one or more portions of the outer surface of the nozzle block are pressed by the one or more pressing members. The syringe fixing device of claim 1, wherein the pressing member further comprises: a hinge block fixing body integrally formed with the base or through a solid A fixing bolt is fixed to the base, and the hinge block fixing body is adapted to fix the hinge block by a screw connection. The syringe fixing device of claim 5, wherein the hinge block includes a protruding hinge shaft and the hinge having an L-shape that is rotatable about the hinge shaft. The syringe fixing device of claim 6, wherein the hinge block is a single cast part having a multi-layered base structure, and includes: an upper hinge block from which the hinge shaft protrudes; A lower hinge block configured to slide laterally on an upper surface of the base. The syringe fixing device of claim 7, wherein the lower hinge block includes a slot having a slot structure and slides along a tightening bolt inserted into the slot. The syringe fixing device of claim 8, wherein the tightening bolt is inserted into the slot, and the lower hinge block is tightly fixed to the hinge block fixing body. The syringe fixing device of claim 8, wherein the hinge block fixing body comprises: a screw hole, one end of the tightening bolt is tightened and released in the screw hole; and a fixing bolt, which will The hinge block fixing body is fixed to the base. The syringe solid according to any one of claims 1 to 10 A device in which the syringe holding device is a device for fixing a syringe in a plaster drip device.