JP2010107927A - Fixing device for liquid crystal container of liquid crystal dispenser - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To fix a liquid crystal container to a determined position; to easily and accurately align a housing hole through which a liquid crystal is filled and a filling tube by which the liquid crystal is filled; and to prevent leakage of the liquid crystal. <P>SOLUTION: A fixing device for liquid crystal container of a liquid crystal dispenser is provided and includes: a guiding member; and a position setting lid having a lid part connected to the liquid crystal container supported by a liquid crystal container supporting table and provided with a filling path through which the liquid crystal is filled in the liquid crystal container and a position fixing part which is formed to be extended to the lid part, in which the guiding member is inserted and fixed and which is provided with a guiding member inserting groove for matching the lid part to a determined position. When the guiding member is inserted in the guiding member inserting groove of the position setting lid in such a state that the liquid crystal container is connected to the lid part of the position setting lid, not only the liquid crystal container is fixed but also the filling tube for injecting the liquid crystal is inserted in the inlet of the filling path of the position setting lid. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a liquid crystal container fixing device of a liquid crystal dispenser for fixing a liquid crystal container to a head unit.

  FIG. 1 is a side view schematically showing an example of a liquid crystal dispenser and an example of a liquid crystal supply device.

  As shown in FIG. 1, the liquid crystal dispenser is movably mounted on the frame 100, the stage 200 on which the substrate is placed, and the frame 100 movably provided in the Y-axis direction. A head support base 300; and a head device 400 that is mounted on the head support base 300 so as to be movable in the X-axis direction and includes a nozzle unit that discharges liquid crystal.

  As shown in FIG. 2, a liquid crystal container support base 510 is mounted on a support assembly 410 constituting the head device 400, and a liquid crystal container 520 is inserted into and supported by the liquid crystal container support base 510. A lid 530 is coupled to the entrance of the liquid crystal container 520, and a tube 540 connected to the nozzle unit 430 constituting the head device 400 passes through the lid 530 and is positioned inside the liquid crystal container 520. The liquid crystal container 520 and the lid 530 are screwed together. The lid 530 and the tube 540 are connected by a connecting member 550.

  A coupling hole 531 is provided on the lower surface of the lid 530 so that an entrance portion of the liquid crystal container 520 is coupled, and a common hole 532 is provided in communication with the coupling hole 531. A circular accommodation hole 533 communicating with the common hole 532 is provided on the outer peripheral surface of the lid 530. A through screw hole 534 communicating with the common hole 532 is provided on the upper surface of the lid 530.

  The connection member 550 includes a screw portion 551 having a thread or the like formed on one outer peripheral surface, and a connection hole 552 that passes through the middle of the connection member 550. The tube 540 passes through and is coupled to the coupling hole 552 of the coupling member 550, and the screw portion 551 of the coupling member 550 is fastened to the through screw hole 534 of the lid 530.

  Meanwhile, the liquid crystal supply device is provided in a base plate 610, and a liquid crystal tank 620 filled with liquid crystal therein, a pressure supply unit 630 provided in the base plate 610 for supplying pressure to the liquid crystal tank 620, and the liquid crystal A connecting pipe 640 that connects the tank 620 and the pressure supply unit 630, a connecting unit 650 that passes through one side wall of the clean booth 10 and is coupled to the one side wall, and the liquid crystal tank 620 and the connecting unit And a liquid crystal supply pipe 660 connecting with the liquid crystal display 650.

  Generally, the liquid crystal dispenser is positioned inside the clean booth 10 in order to prevent foreign matter from flowing into the substrate during the liquid crystal dropping process.

  The connection unit 650 includes an injection pipe 651 connected to the liquid crystal supply pipe 660 and a drive unit (not shown) that reciprocates the injection pipe 651 linearly. The injection pipe 651 is located inside the clean booth 10.

  An open / close valve 670 is attached to the liquid crystal supply pipe 660. When the opening / closing valve 670 is opened, liquid crystal flows through the liquid crystal supply pipe 660, and when the opening / closing valve 670 is closed, liquid crystal does not flow through the liquid crystal supply pipe 660.

  The operation of the liquid crystal dispenser is as follows.

  In a state where the liquid crystal containers 520 filled with liquid crystals are respectively mounted on the head device 400, the head support base 300 moves in the Y-axis direction, and the head devices 400 move in the X-axis direction. Accordingly, the head device 400 ejects liquid crystal through the nozzle unit 430 while moving in the X-axis and Y-axis directions according to the set coordinate values.

  When supplying liquid crystal to the liquid crystal container 520, the head support 300 and the head device 400 are moved, and the liquid crystal container 520 mounted on the head device 400 is moved to a position where liquid crystal is supplied. The position where the liquid crystal is supplied refers to a position where the injection tube can supply the liquid crystal.

  When the liquid crystal container 520 is moved to the liquid crystal supply position, the driving unit of the connecting unit 650 is operated to move the injection tube 651 to the liquid crystal container side. As the injection tube 651 moves toward the liquid crystal container, it is inserted into the circular accommodation hole 533 of the lid 530 coupled to the liquid crystal container 520.

  When the opening / closing valve 670 is opened, the liquid crystal is supplied to the liquid crystal container 410 through the liquid crystal supply pipe 660 and the injection pipe 651 by the pressure acting on the liquid crystal tank 620.

  When the liquid crystal is supplied to the liquid crystal container 410 in a set amount, the opening / closing valve 670 is closed, and the liquid crystal stored in the liquid crystal tank 620 is supplied to the liquid crystal container 520 through the liquid crystal supply pipe 660 and the injection pipe 651. Block supply.

  The drive unit operates to move the injection tube 651 backward. As the injection tube 651 moves rearward, the injection tube 651 comes out of the circular accommodation hole 533.

  However, in the conventional structure as described above, when the liquid crystal container 410 cannot be inserted into the liquid crystal container support base 510 when inserted into the liquid crystal container support base 510, or when the liquid crystal container 410 is inserted into the liquid crystal container support base 510 at a fixed position. However, when vibration occurs, the liquid crystal container 410 comes out of the fixed position. As a result, the center line of the circular accommodation hole 533 of the lid and the center line of the injection tube 651 cannot be located on the same line, and the injection tube 651 is not accurately inserted into the circular accommodation hole 533 of the lid 530, Collides with lid 530.

  In addition, when the injection tube is inserted into the circular housing hole of the lid and liquid crystal is injected into the liquid crystal container through the injection tube, the liquid crystal container is in the process of being injected into the liquid crystal container 520 through the injection tube 651. Liquid crystal leaks between the entrance end surface of 520 and the inner peripheral surface of the common hole 532 of the lid.

  An object of the present invention is to fix the liquid crystal container at a predetermined position, and to easily and accurately align the accommodation hole into which the liquid crystal is injected and the injection tube into which the liquid crystal is injected.

  Another object of the present invention is to prevent liquid crystal from leaking.

  In order to achieve the object of the present invention as described above, a guide member; and an injection passage which is coupled to a liquid crystal container supported by a liquid crystal container support and in which liquid crystal is injected into the liquid crystal container is provided. A lid portion, and a position fixing portion formed to extend to the lid portion, in which the guide member is inserted and fixed, and provided with a guide member insertion groove for fixing the lid portion at a predetermined position. There is provided a liquid crystal container fixing device of a liquid crystal dispenser including a position setting lid.

  The guide member is preferably coupled to the liquid crystal container support or integrated with the liquid crystal container support.

  A leakage prevention protrusion is provided which extends to the inner wall of the injection passage of the lid and is inserted into the inlet of the liquid crystal container so as to prevent liquid crystal from leaking between the outer peripheral surface of the liquid crystal container and the inner wall of the injection passage. It is done.

  The injection passage of the lid portion passes through the common hole communicating with the coupling hole formed on the lower surface of the lid portion, the inner wall of the common hole and the side surface of the lid portion, and the cross section has a certain width and length. And an accommodation hole having a long hollow shape. The entrance portion of the liquid crystal container is coupled to the coupling hole.

  It is desirable that a position confirmation hole for confirming a position by a laser sensor is provided in each of the lid portion and the position fixing portion of the position setting lid.

  It is desirable that a prevention jaw is provided that extends on one surface of the lid so as to be positioned above the inlet of the injection passage and prevents foreign matter from flowing into the inlet.

  As described above, according to the present invention, when the liquid crystal container is coupled to the lid portion of the position setting lid and the guide member is inserted into the guide member insertion groove of the position setting lid, the liquid crystal container is fixed. Not only is the inlet of the positioning lid injection passage positioned so that an injection tube for injecting liquid crystal can be inserted into the inlet.

  Hereinafter, embodiments of a liquid crystal container fixing device for a liquid crystal dispenser according to the present invention will be described with reference to the accompanying drawings.

  FIG. 3 is a front view showing a part of a liquid crystal dispenser head device and a liquid crystal supply device provided with the liquid crystal container fixing device according to the first embodiment of the liquid crystal dispenser of the present invention.

  FIG. 4 is a cross-sectional view showing a first embodiment of the liquid crystal container fixing device of the liquid crystal dispenser.

  The first embodiment of the liquid crystal container fixing device of the liquid crystal dispenser of the present invention will be described with reference to FIGS. 3 and 4 as follows.

  A support assembly 410 constituting the head device 400 is movably mounted on the head support base 300 constituting the liquid crystal dispenser. A liquid crystal container support 710 is mounted on the support assembly 410, and the liquid crystal container 720 is inserted and supported on the liquid crystal container support 710.

  The liquid crystal container support 710 includes a support part 711 that is coupled to the support assembly 410 on one side, and a side support part 712 that is provided at an edge of the upper surface of the support part 711 and supports the outer peripheral surface of the liquid crystal container 720. ,including. The side support part 712 is perpendicular to the bottom surface of the support part 711.

  A guide member 730 is coupled to the liquid crystal container support 710. The guide member 730 preferably has a rectangular cross section.

  An end portion on one side of the guide member 730 is coupled to the upper stage portion of the side surface support portion 712, and an opposite side portion coupled to the guide member 730 is positioned above the side surface support portion 712. The guide member 730 is positioned vertically.

  The guide member 730 and the side support 712 are preferably coupled by a bolt.

  A position setting lid 740 is coupled to the liquid crystal container 720 and coupled to the guide member 730.

  The position setting lid 740 is coupled to the liquid crystal container 720, and includes a lid part (A) having an injection passage (P1) into which liquid crystal is poured into the liquid crystal container 720, and the lid part (A). A position fixing portion (B) that is formed to extend, has the guide member 730 inserted and fixed therein, and includes a guide member insertion groove 741 that fixes the lid portion (A) at a predetermined position. .

  A jig in which a part of a jig used for coupling the position setting lid 740 to the liquid crystal container 720 is inserted between the lid (A) and the position fixing part (B) of the position setting lid 740. It is desirable that an insertion portion 742 is provided. The jig insertion part 742 is preferably formed in the form of an open groove having a certain width and depth.

  The lower surface of the lid (A) is provided with a coupling hole (P2) into which the entrance portion of the liquid crystal container 720 is inserted and coupled.

  The coupling hole (P2) communicates with the first hole 743 formed on the lower surface of the lid (A) so as to have a constant inner diameter and depth, and the first hole 743, and the first hole 743 is connected to the first hole 743. The second hole 744 has an inner diameter smaller than the inner diameter of the hole 743 and a constant depth, and is provided with a thread on the inner peripheral surface. The second hole 744 is fastened with a screw thread 721 provided at the entrance of the liquid crystal container 720.

  An injection passage (P1) of the lid (A) includes a common hole 745 formed in communication with the second hole 744 of the coupling hole (P2), an inner wall of the common hole 745, and a lid (A And an accommodation hole 746 penetrating the side surface.

  An inner diameter of the common hole 745 is smaller than an inner diameter of the second hole 744 and has a certain depth.

  The accommodation hole 746 penetrates horizontally. The receiving hole 746 is preferably formed in an elongated shape having a certain width and length. The length direction of the long sky is vertical. An injection tube 651 is inserted into the accommodation hole 746. When the accommodation hole 746 is formed in an elongated shape, the injection tube 651 is not located in the middle of the accommodation hole 746, but is inserted into the accommodation hole 746 even if it is located above or below the middle. Can do. If the injection pipe 651 is not located in the middle of the accommodation hole 746 but is located on the left side or right side of the middle, the head device 400 is moved in the horizontal direction, so that the injection pipe 651 and the accommodation hole 746 The center can be adjusted.

  The inner wall of the injection passage (P1) of the lid (A) is provided with a leakage prevention protrusion 747 that prevents liquid crystal from coming out between the outer peripheral surface of the liquid crystal container 720 and the inner peripheral surface of the injection passage (P1). . The leakage prevention protrusion 747 protrudes downward and has a ring shape. When the liquid crystal container 720 is coupled to the coupling hole (P2), the leakage prevention protrusion 747 is inserted into the entrance of the liquid crystal container 720, and the entrance portion of the liquid crystal container 720 is connected to the leakage prevention protrusion 747. It is located between the outer peripheral surface and the inner peripheral surface of the second hole 744. The inner peripheral surface of the entrance of the liquid crystal container 720 is in contact with the outer peripheral surface of the leakage prevention protrusion 747.

  A connecting member 750 is coupled to the lid (A). A through screw hole 748 communicating with the common hole 745 is provided on the upper surface of the lid (A). A threaded portion 751 is provided on one outer peripheral surface of the connecting member 750. The threaded portion 751 of the connecting member 750 is fastened to the through screw hole 748. A tube 760 passes through the middle of the connecting member 750. One end of the tube 760 is located in the liquid crystal container 720.

  When the injection tube 651 passes through the receiving hole 746 and is positioned inside the common hole 745, it is desirable that the injection tube 651 does not meet the tube 760 positioned inside the liquid crystal container 720. Thus, when the injection tube 651 and the tube 760 do not meet each other, when the hole of the connecting member 750 through which the tube 760 penetrates is extended and the accommodation hole 746 is extended, the connecting member 750 does not meet each other. The hole and the accommodation hole 746 are positioned (arranged). Such a structure prevents the liquid crystal from colliding with the tube 760 when the injection tube 651 is inserted into the accommodation hole 746 and the liquid crystal is injected through the injection tube 651.

  The position fixing portion (B) of the position setting lid 740 includes a guide member insertion groove 741 on the side surface. The guide member insertion groove 741 is formed to have a predetermined width, depth, and length so that the upper portion of the guide member 730 is inserted in a horizontal or vertical direction. Open.

  A laser sensor 652 is provided on one side of the connection unit 650 including the injection tube 651, and a position confirmation hole 749 is provided on one side of the position setting lid 740.

  The laser sensor 652 is preferably located above the injection tube 651. The position confirmation hole 749 is formed through the upper part of the lid part (A) and the upper part of the fixing part (B) so as to be positioned above the accommodation hole 746.

  When the laser sensor 652 senses the position of the position confirmation hole 749, the injection tube 651 and the accommodation hole 746 are located on the same line.

  The laser sensor 652 emits a laser beam and measures a time difference in which the emitted laser beam is reflected. When the laser sensor 652 is positioned on the same line as the position confirmation hole 749 and emits a laser beam, the laser beam passes through the position confirmation hole 749 and is reflected by the support assembly 410. Therefore, it can be confirmed that the laser sensor 652 and the position confirmation hole 749 are located on the same line.

  As shown in FIG. 6, a prevention jaw (C) is provided on one surface of the lid (A) so as to be positioned above the accommodation hole 746. The prevention jaw (C) is preferably formed to extend from one surface of the lid (A) so as to have a certain thickness, height and depth. The prevention jaw (C) prevents foreign matter from flowing into the accommodation hole 746 due to air jetted from the upper part of the clean booth 10.

  The other end of the tube 760 that passes through the connecting member 750 is connected to the nozzle unit 430.

  7 and 8 are a plan view and a front view showing a second embodiment of the liquid crystal container fixing device of the liquid crystal dispenser of the present invention.

  7 and 8, the second embodiment of the liquid crystal container fixing device of the liquid crystal dispenser includes a liquid crystal container support 710 provided with a position guide groove 713; and a liquid crystal container support 710 supported by the liquid crystal container support 710. A lid portion (A) that is coupled to the liquid crystal container 720 and includes an injection passage (P1) into which liquid crystal is injected into the liquid crystal container 720, and extends to the lid portion (A). A position setting lid 740 including a position fixing portion (B) provided with a position setting projection (D) to be inserted into the position guide groove 713 is included on one side.

  The liquid crystal container support 710 includes a support part 711 that is coupled to the support assembly 410 on one side, and a side support part 712 that is provided at an edge of the upper surface of the support part 711 and supports the outer peripheral surface of the liquid crystal container 720. ,including. The side support part 712 is perpendicular to the bottom surface of the support part 711. A position guide groove 713 is provided on one side of the side support portion 712. The position guide groove 713 has a certain width, depth, and length, and is formed in an open shape on the upper side.

  The position setting lid 740 is formed in a shape like the position setting lid 740 of the first embodiment, and a position setting protrusion (D) inserted into the position guide groove 713 is provided in the position fixing portion (B). It is done. The position setting protrusion (D) has a certain width, length, and height so as to be inserted into the position guide groove 713 horizontally or vertically.

  Hereinafter, the operation and effect of the liquid crystal container fixing device of the liquid crystal dispenser of the present invention will be described as follows. Since the operational effects of the first embodiment and the second embodiment are the same, only the first embodiment will be described.

  A liquid crystal container 720 is coupled to the lid portion (A) of the position setting lid 740. In this case, the entrance portion of the liquid crystal container 720 is inserted into the coupling hole (P2) of the lid (A), and the liquid crystal container 720 is rotated to tighten the screw portion 721 and the second hole 744 of the liquid crystal container 720. .

  The position setting lid 740 coupled with the liquid crystal container 720 is coupled with the guide member 730. In this case, the guide member 730 is inserted into the guide member insertion groove 741 of the position setting lid 740 while the liquid crystal container 720 is inserted into the liquid crystal container support 710.

  The connecting member 750 through which the tube 760 passes is coupled to the position setting lid 740.

  After confirming the position of the injection tube 651 and the accommodation hole 746 of the position setting lid 740 using the laser sensor 652 provided in the connection unit 650, the injection tube 651 is moved forward to enter the accommodation hole 746. insert. Liquid crystal is injected into the liquid crystal container 720 through the injection tube 651.

  When liquid crystal injection into the liquid crystal container 720 is completed, the injection tube 651 is moved backward and taken out from the accommodation hole 746.

  In the present invention, when the guide member 730 is inserted into the guide member insertion groove 741 of the position setting lid 740 in a state where the liquid crystal container 720 is coupled to the lid portion (A) of the position setting lid 740, the liquid crystal container is fixed. Thus, the accommodation hole of the position setting lid can be positioned on the line on which the injection tube reciprocates linearly. Accordingly, even when vibration occurs, the positions of the liquid crystal container and the accommodation hole remain unchanged.

  When the accommodation hole 746 and the injection tube 651 are not located on the same line, the head device 400 can be moved to the left or right, and the accommodation hole 746 and the injection tube 651 can be located on the same line. In addition, it is possible to confirm that the accommodation hole 746 and the injection tube 651 are located on the same line using the laser sensor 652. Here, “on the same line” means a position where the injection tube 651 is inserted into the accommodation hole 746 when the injection tube 651 moves linearly toward the liquid crystal container 720.

  Since the accommodation hole 746 and the injection pipe 651 are located on the same line, the injection pipe 651 is prevented from colliding with the position setting lid 740 when the injection pipe 651 is moved to the liquid crystal container side and inserted into the accommodation hole 746. To do.

  Since the leakage prevention protrusion 747 is provided inside the position setting lid 740, when the injection tube 651 is inserted into the receiving hole 746 and the liquid crystal is injected into the liquid crystal container 720, the liquid crystal is injected into the inlet end surface of the liquid crystal container 720. Prevent leakage between the inner wall of the passage.

  Since the accommodation hole 746 is formed in a long space and the long space is vertically positioned, when the head device 400 cannot move in the vertical direction, an allowable range in which the injection pipe 651 can be positioned in the vertical direction is widened.

It is the side view which showed an example of the liquid crystal dispenser and the liquid crystal supply device. It is the side view which showed a part of head apparatus which comprises the said liquid crystal dispenser. It is the side view which showed a part of head apparatus with which 1st Embodiment of the liquid crystal container fixing device of the liquid crystal dispenser of this invention was equipped. It is sectional drawing which showed 1st Embodiment of the liquid crystal container fixing device of the liquid crystal dispenser of this invention. It is the perspective view which cut and showed the position setting lid | cover which comprises 1st Embodiment of the liquid crystal container fixing device of the liquid crystal dispenser of this invention. It is sectional drawing which showed the prevention jaw of the position setting lid | cover which comprises 1st Embodiment of the liquid crystal container fixing device of the liquid crystal dispenser of this invention. It is the top view which showed 2nd Embodiment of the liquid crystal container fixing device of the liquid crystal dispenser of this invention. It is the front view which showed 2nd Embodiment of the liquid crystal container fixing device of the liquid crystal dispenser of this invention.

Explanation of symbols

300 Head support 400 Head device 410 Support assembly 710 Liquid crystal container support base 711 Support part 712 Side support part 720 Liquid crystal container 730 Guide member 740 Position setting lid 741 Guide member insertion groove 742 Jig insertion part 743 First hole 744 First Two holes 745 Common hole 746 Accommodation hole

Claims (8)

A guide member;
A lid part that is coupled to a liquid crystal container supported by a liquid crystal container support and includes an injection passage through which liquid crystal is injected into the liquid crystal container, and extends to the lid part, and includes the guide member therein A position setting lid comprising: a position fixing portion provided with a guide member insertion groove that is inserted and fixed and fixes the lid portion at a predetermined position;
Liquid crystal container fixing device for liquid crystal dispenser including   2. The liquid crystal container fixing device for a liquid crystal dispenser according to claim 1, wherein the guide member is coupled to the liquid crystal container support or integrated with the liquid crystal container support. 3.   A leakage prevention protrusion is provided which extends to the inner wall of the injection passage of the lid and is inserted into the inlet of the liquid crystal container so as to prevent liquid crystal from leaking between the outer peripheral surface of the liquid crystal container and the inner wall of the injection passage. The liquid crystal container fixing device for a liquid crystal dispenser according to claim 1, wherein the liquid crystal container fixing device is a liquid crystal container fixing device.   The injection passage of the lid portion is formed to have a certain depth on the lower surface of the lid portion, a common hole communicating with a coupling hole to which an entrance portion of the liquid crystal container is coupled, an inner wall of the common hole, and the lid portion 2. The liquid crystal container fixing device for a liquid crystal dispenser according to claim 1, wherein the liquid crystal dispenser includes a housing hole having a long hollow shape having a constant width and length.   Between the lid of the position setting lid and the position fixing portion, there is provided a jig insertion portion into which a part of a jig used for coupling the position setting lid to the liquid crystal container is inserted. The liquid crystal container fixing device of the liquid crystal dispenser according to claim 1.   2. The liquid crystal container fixing device for a liquid crystal dispenser according to claim 1, wherein a position confirmation hole for confirming a position by a laser sensor is provided in each of the lid portion and the position fixing portion of the position setting lid.   2. The prevention jaw according to claim 1, further comprising a prevention jaw that extends to one surface of the lid so as to be located above the inlet of the injection passage and prevents foreign matter from flowing into the inlet. Liquid crystal container fixing device for liquid crystal dispenser. A liquid crystal container support provided with a position guide groove;
The liquid crystal container supported by the liquid crystal container support base is coupled to a liquid crystal container, and a lid part provided with an injection passage through which liquid crystal is injected into the liquid crystal container is formed, extending to the lid part, and on one side, A position setting lid that is inserted into the position guide groove and is provided with a position setting protrusion for fixing the lid portion at a predetermined position;
A liquid crystal container fixing device for a liquid crystal dispenser.

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