JP2001121061A - Liquid agent application apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily position and fix an electronic part and evenly apply a liquid agent to step parts in the different directions of the electronic part. SOLUTION: A plurality of liquid crystal elements 12 are disposed on a pallet 13 and the pallet 13 is held by a base plate 15. Next, the base plate 15 is inclined by a cylinder 19 and when a conduction plate 21 attached to the base plate 15 is brought into contact with a vibrator 22, the vibration of the vibrator 22 is transmitted to the base plate 15 through the conduction plate 21 and the liquid crystal elements 12 are brought into contact with the guide 14 of the pallet 13 and positioned. The step parts of the positioned and fixed liquid crystal elements 12 are coated with a liquid agent by a liquid agent discharge means provided with a tube for supplying the liquid agent, a nozzle for discharging the supplied liquid agent, and a discharge valve for controlling the discharge conditions of the liquid agent. The application operation of the liquid agent of the liquid agent application apparatus 11 is controlled by a control circuit 31.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid material applying apparatus for positioning and fixing an electronic component such as a liquid crystal element, and applying a liquid material for moisture proof or insulation to a step portion.

[0002]

2. Description of the Related Art FIG. 6 is a view for explaining a conventional liquid material applying method. The liquid crystal element 4 as an electronic component is configured by interposing liquid crystal between a pair of substrates, is rectangular, and has a stepped portion 5 formed by two substrates on at least two surfaces orthogonal to each other. Such step portions 5 in different directions
Is applied with a liquid material 6 containing a resin such as silicone for moisture prevention and insulation of the liquid crystal interposed between the substrates and the electrodes formed on the substrates. The application of the solution 6 is conventionally performed using the syringe 1. That is, the liquid agent 6 is filled in the syringe body 2, and the filled liquid agent 6 is discharged from the nozzle 3 by compressed air.

[0003]

The liquid material 6 is applied to each step 5.
In order to obtain high moisture-proof and insulating properties by applying
Must be applied evenly. However, if the syringe 1 is inclined or only the nozzle 3 is inclined for application, the inclination angle must be kept unchanged during the application, and a high level of skill is required. When the electronic component 4 is applied while being inclined, the electronic component 4
Is fixed to a special jig. Therefore, it is necessary to attach and detach the electronic component 4 to and from the jig, and the workability is reduced. In particular, in order to reliably apply the liquid material 6 and prevent a decrease in the production quantity, a plurality of electronic components 4 must be accurately positioned and mounted at predetermined positions of a jig, and it takes time to mount the electronic components. Is reduced.

Japanese Unexamined Patent Application Publication No. 11-165222 discloses a work aligning apparatus for arranging a large number of works such as semiconductor chips in a desired state, but the apparatus is merely for aligning the works. However, even with this device, it is not possible to apply the liquid agent evenly to the step portion of the liquid crystal element.

SUMMARY OF THE INVENTION An object of the present invention is to provide a liquid applying apparatus which can easily position and fix an electronic component and can evenly apply a liquid to step portions in different directions of the electronic component.

[0006]

SUMMARY OF THE INVENTION The present invention is directed to an apparatus for applying a liquid material to a step portion of an electronic component in different directions, which is an alignment plate on which a plurality of electronic components are mounted. Holding means for holding an alignment plate having a guide for determining the position of the placed electronic component; tilting means for tilting the holding means; vibrating means for applying vibration to the tilted holding means; A liquid dispenser that is movably disposed.

According to the present invention, a plurality of electronic components to be coated with a liquid material are placed on an alignment plate, and the alignment plate is held by holding means. By tilting such a holding means by the tilting means and applying vibration to the holding means by the vibration means, the electronic component is positioned in contact with the guide of the alignment plate. For step components of electronic components that are positioned and fixed,
The liquid discharged from the liquid discharging means is applied.

Accordingly, a plurality of electronic components to be coated with the liquid can be easily positioned and fixed without requiring a high level of skill in the work, and the liquid can be uniformly applied to the step portion of the electronic component. Since attachment and detachment of the electronic component to and from the holding means is simple, the electronic component can be positioned and fixed with high workability. In addition, since a plurality of electronic components can be accurately positioned and fixed in a short time, the liquid agent can be applied reliably, and a decrease in production quantity can be prevented.

Further, according to the present invention, when the alignment plate on which the plurality of electronic parts are temporarily placed is held by the holding means in a horizontal state, the liquid applying apparatus tilts the holding means by operating the tilting means. When the holding means inclined to contact the vibration means,
By operating the vibrating means to apply vibration to the contacting holding means, the inclination and the vibration bring the electronic component into contact with the guide of the alignment plate, thereby completing the positioning of the electronic component. It is characterized by further including control means for operating the liquid material discharging means to apply the liquid material to the step portion of the electronic component.

According to the present invention, by the above-described control of the control means, it is possible to reliably position and fix a plurality of electronic components to which the liquid material is to be applied and to apply the liquid material reliably.

Further, according to the present invention, the liquid material applying apparatus further includes a tilt start instruction means for instructing a start of a tilting operation of the tilting means, and a liquid material discharge start instructing means for instructing a start of a liquid material discharging operation of the liquid material discharging means. The control means operates the tilt means in response to the instruction of the tilt start instruction means, and operates the liquid material discharge means in response to the instruction of the liquid material discharge start instruction means.

According to the present invention, the control means operates the tilt means in response to the instruction of the tilt start instructing means. For example, the operator places a plurality of electronic components to be coated with the liquid on the alignment plate, Holding the alignment plate in a holding means, and pressing down the inclination start instructing means at a desired timing when it is determined that the work by the operator has been surely performed by the operator; thereby securely positioning and fixing the electronic component. Can be. Further, the control means operates the liquid material discharge means in response to the instruction of the liquid material discharge start instruction means, so that the liquid material discharge start instruction means is depressed at a desired timing of the operator and the liquid material is surely applied to the step portion of the electronic component. can do.

Further, the present invention is characterized in that the inclination means includes a cylinder.

According to the present invention, specifically, the tilting means has a cylinder, and the height of the holding means can be changed by the action of the reciprocating piston of the cylinder so that the holding means can be reliably tilted.

Further, the present invention is characterized in that a conductive plate is attached to the holding means, and the vibrating means includes a vibrator which contacts the conductive plate when the holding means is inclined.

According to the present invention, specifically, a conductive plate is attached to the holding means, and the vibrating means includes a vibrator. The position of the conductive plate attached to the holding means changes with the tilting operation of the holding means. Further, the vibrator abuts on the conductive plate when the holding means is inclined. Therefore, it is possible to reliably transmit the vibration of the vibrator to the holding means via the conductive plate at the time of inclination.

Further, the present invention is characterized in that the liquid agent discharging means includes a tube for supplying the liquid agent, a nozzle for discharging the supplied liquid agent, and a discharge valve for controlling a discharge condition of the liquid agent.

According to the present invention, specifically, the liquid agent discharge means includes a tube, a nozzle, and a discharge valve. The liquid agent supplied via the tube is discharged from the nozzle under optimal conditions controlled by the discharge valve. For example, ejection is performed with the amount and timing optimized. In this way, the liquid material can be discharged and the liquid material can be reliably applied to the step portion of the electronic component.

Further, according to the present invention, the nozzle has a predetermined angle θ.
And is characterized by being bent.

According to the present invention, since the nozzle is bent at the predetermined angle θ, it is possible to apply the liquid agent more evenly to the vertical surface and the horizontal surface of the step portion of the electronic component. The angle θ is appropriately selected depending on the type of the liquid agent, the size of the step, and the like, and the angle θ may be configured to be changeable under these conditions so that the optimum angle θ is obtained.

According to the present invention, the liquid material discharge surface of the nozzle is inclined with respect to the liquid material discharge direction, and when the liquid material is applied, the liquid material discharge surface is substantially parallel to a vertical surface of a step portion of the electronic component. It is characterized by.

According to the present invention, the liquid agent can be reliably applied to the vertical surface of the stepped portion of the electronic component by discharging the liquid agent from the nozzle having the above-described tip shape, and the vertical surface of the stepped portion is perpendicular to the horizontal surface. It can be applied reliably by the fluidity of the liquid applied to the surface.

[0023]

FIG. 1 is a front view showing a liquid material applying apparatus 11 according to an embodiment of the present invention, FIG. 2 is a plan view thereof, and FIG. 3 is a side view thereof. Liquid coating device 1
Reference numeral 1 denotes a base plate 15 as holding means for holding a pallet 13 as an alignment plate, a cylinder 19 as tilting means for tilting the base plate 15, and a vibrator as vibrating means for applying vibration to the tilted base plate 15. 22, a tube 23,
It includes a movable liquid material discharge means having a discharge valve 24 and a nozzle 25, a liquid material discharge start switch 29, and a tilt start switch 30, which are connected to the bottom plate member 26 and the side plate member 2.
7 and a top plate member 28. Also,
The control circuit 31 includes a control circuit 31 for controlling the liquid material application operation.

A plurality of liquid crystal elements 12 are placed on the pallet 13. Referring to FIG. 5, liquid crystal element 1 as an electronic component
2 has step portions 34 in different directions. That is, the liquid crystal element 12 is configured by interposing liquid crystal between a pair of rectangular substrates 12a and 12b, and has a step portion 34 formed by the substrates 12a and 12b on at least two side surfaces orthogonal to each other. Each step portion 34 of the liquid crystal element 12 includes a substrate 12a,
A liquid agent containing a resin such as silicone is applied by using the liquid agent application device 11 of the present invention in order to prevent moisture and insulate the liquid crystal between the electrodes 12b and the electrodes formed on the substrates 12a and 12b.

A plurality of guides 14 are provided on the surface of the pallet 13 on which the liquid crystal elements 12 are mounted, and a number of liquid crystal elements 12 corresponding to the number of guides are mounted on the pallet 13. For example, the plurality of guides 14 are arranged in a matrix. Each guide 14 has two abutting surfaces orthogonal to each other according to the rectangular liquid crystal element 12. Two mutually perpendicular sides of the liquid crystal element 12 mounted on the pallet 13 abut against two mutually orthogonal contact surfaces of the guide 14 by the action of tilt and vibration described later, and thus the liquid crystal element 12 is positioned. Is done.

Positioning pins 16 are provided at predetermined positions on the holding surface of the base plate 15. The pallet 13 has an insertion hole through which the positioning pin 16 is inserted. By inserting the positioning pin 16 into the insertion hole, the pallet 13 can be positioned and held on the base plate 15. In addition, at least two sets of the positioning pins 16 and the insertion holes are provided for reliable positioning.

A pedestal 18 is provided on the bottom plate member 26, and a plurality of columns 17 are provided on the pedestal 18.
The base plate 15 is supported by the plurality of columns 17. The cylinder 19 is a part of the plurality of columns 17 and is provided at a predetermined position in the height direction. By reciprocating the piston of the cylinder 19, the entire length of the column 17 changes, whereby the base plate 15 can be tilted about a predetermined fulcrum 20 as the center of rotation. Note that the base plate 15 is
When the liquid crystal element 12 is temporarily placed, the liquid crystal element 12 is tilted as described above.
When applying the liquid to 2, the base plate 15 is in a horizontal state.

A conductive plate 21 is attached to one end of such a base plate 15. The conductive plate 21 is provided so as to be able to contact the vibrator 22 when the base plate 15 is inclined. For example, the vibrator 22 is provided above the base plate 15,
When one end of the base plate 15 is inclined upward, the conductive plate 21 comes into contact with the vibrator 22. The conductive plate 21 is a vibrator 22
, The vibration of the vibrator 22 is transmitted to the base plate 15 via the conductive plate 21. Therefore, the base plate 15 is inclined and vibrates. The liquid crystal element 12 on the inclined and vibrating base plate 15 receives
Two mutually orthogonal two side surfaces abut on two mutually orthogonal abutting surfaces of the guide 14. Thus, the liquid crystal element 12 is positioned on the guide 14.

The liquid material discharge means is provided, for example, on the top plate member 28 and is provided above the base plate 15, and supplies a liquid material to the tube 23; a nozzle 25 for discharging the liquid material supplied from the tube 23; 23 and nozzle 2
5 and a discharge valve 24 for controlling the discharge condition of the liquid agent, for example, the amount and timing. Therefore, the liquid agent supplied through the tube 23 is supplied to the discharge valve 24.
Is discharged from the nozzle 25 under the optimal conditions controlled by

The liquid material discharging means is configured to be movable in three directions X, Y, and Z orthogonal to each other. For example, the liquid agent discharging means itself is directed to the belt-shaped top plate member 28 in the direction X along the longitudinal direction (the left-right direction on the paper of FIGS. 1 and 2).
The top plate member 28 itself moves in a direction Y perpendicular to the longitudinal direction of the top plate member 28 (the vertical direction on the paper of FIG.
It is configured to move in the horizontal direction on the paper of FIG. 3 and the direction Z (vertical direction on the papers of FIGS. 1 and 3). Therefore, the liquid material can be applied to the step portions of the plurality of liquid crystal elements 12 which are positioned and fixed by the moving liquid material discharging means.

In the liquid application apparatus 11, a plurality of liquid crystal elements 12 to be applied with a liquid are placed on a pallet 13, and the pallet 13 is held on a base plate 15. Such a base plate 15 is inclined by a cylinder 19, and the base plate 1
When the vibrator 22 vibrates the liquid crystal element 5, the liquid crystal element 12 is positioned in contact with the guide 14 of the pallet 13. The liquid ejected from the liquid ejecting means is applied to the step portion of the liquid crystal element 12 which is positioned and fixed. Therefore, a plurality of liquid crystal elements 12 to be coated with a liquid agent
Can be easily positioned and fixed without requiring a high level of skill in work, and a liquid agent can be evenly applied to the step portion of the liquid crystal element 12. Since attachment and detachment of the liquid crystal element 12 to and from the base plate 15 are simple, the liquid crystal element 12 can be positioned and fixed with high workability. Further, since the plurality of liquid crystal elements 12 can be accurately positioned and fixed in a short time, the liquid agent can be applied reliably,
A decrease in production quantity can be prevented.

When the pallet 13 on which the plurality of liquid crystal elements 12 are temporarily placed is held on the base plate 15 in a horizontal state, the control circuit 31 operates the cylinder 19 to operate the base plate 15.
Tilt. Next, the inclined base plate 15 is
When the base plate 15 contacts the base plate 15, the vibrator 22 is operated to vibrate. Further, the liquid crystal element 12 temporarily placed on the pallet 13 abuts on the guide 14 of the pallet 13 by tilting and vibration, and when the positioning is completed, the base plate 15 is returned to a horizontal state, and the liquid material discharging means is operated to operate the liquid material discharging means. The liquid is applied to the step portion of the element 12. By such control of the control circuit 31, the plurality of liquid crystal elements 12 to be coated with the liquid material are surely positioned and fixed,
Further, the liquid agent can be applied reliably.

The operator instructs the cylinder 19 to start the tilting operation from the tilt start switch 30, and the control circuit 31 operates the cylinder 19 in response to the instruction from the switch 30. Therefore, for example, the operator places a plurality of liquid crystal elements 12 to be applied with a liquid agent on the pallet 13 and holds the pallet 13 on the base plate 15, and the operator determines that these operations have been reliably completed. At this timing, the operator himself / herself presses down the tilt start switch 30, whereby the liquid crystal element 12 can be reliably positioned and fixed.

Further, from the liquid material discharge start switch 29, the operator instructs the start of the liquid material discharge operation at a desired timing. In this way, the liquid agent is reliably applied to the step portion of the liquid crystal element 12.

FIG. 4 is a side view showing the liquid material discharging means of the liquid material coating device 11. FIG. 5 shows the nozzle 2 of the liquid material discharging means.
FIG. 5 is an enlarged view of 5 and a liquid crystal element 12. In the liquid material applying apparatus 11 of the present embodiment, it is preferable that the nozzle 25 of the liquid material discharging means is bent at a predetermined angle θ. by this,
The liquid agent can be more uniformly applied to the vertical surface 35 and the horizontal surface 36 of the step portion 34 of the liquid crystal element 12.

It should be noted that the angle θ is determined by the type of the liquid material and the step portion 34.
It is appropriately selected depending on the dimensions of the film. Further, the angle θ may be configured to be changeable so that the optimum angle θ is obtained under these conditions.

The liquid material discharge surface 33 of the nozzle 25 is inclined with respect to the liquid material discharge direction 32, and the liquid material discharge surface 33 is substantially parallel to the vertical surface 35 of the step portion 34 of the liquid crystal element 12 when the liquid material is applied. It is preferable to set as follows.
As a result, the liquid material can be reliably applied to the vertical surface 35 of the liquid crystal element 12 by discharging the liquid material from the nozzle 25 having the tip shape as described above, and the liquid material applied to the vertical surface 35 can be applied to the horizontal surface 36. Liquid can be applied reliably by the fluidity of the liquid.

In this embodiment, an example in which a liquid crystal element is used as an electronic component has been described. However, an example in which another electronic component is easily used for positioning and fixing, and a liquid material is uniformly applied to a step portion thereof is also included in the scope of the present invention. Things.

[0039]

As described above, according to the present invention, a plurality of electronic components are placed on an alignment plate, the alignment plate is held by holding means, and the holding means is tilted by the tilting means. Is given a vibration by vibration means. Thus, the electronic component is positioned in contact with the guide of the alignment plate. The liquid ejected from the liquid ejecting means is applied to the step portion of the electronic component which is positioned and fixed. Therefore,
Multiple electronic components can be easily positioned and fixed,
The liquid agent can be evenly applied to the step portion of the electronic component.

Further, according to the present invention, since the control means for controlling the liquid material applying operation is included, the plurality of electronic components can be reliably positioned and fixed, and the liquid material can be applied reliably.

Further, according to the present invention, the tilting means is operated in response to the instruction of the tilt start instructing means, and the liquid material discharging means is operated in response to the instruction of the liquid material discharging start instructing means. By tilting the holding means at the desired timing, the electronic component can be reliably positioned and fixed, and the liquid agent can be applied.

Further, according to the present invention, the holding means can be reliably tilted by the tilting means provided with the cylinder.

According to the present invention, the conductive plate is attached to the holding means, and the vibrator of the vibrating means comes into contact with the conductive plate when the holding means is inclined. The power can be reliably transmitted to the holding means via the conductive plate.

Further, according to the present invention, the liquid material can be discharged onto the step portion of the electronic component without fail by discharging the liquid material under optimal conditions by the liquid material discharging means having the tube, the nozzle and the discharge valve.

According to the present invention, since the nozzle is bent at the predetermined angle θ, it is possible to apply the liquid agent more evenly to the vertical surface and the horizontal surface of the step portion of the electronic component.

According to the present invention, the liquid material discharge surface of the nozzle is inclined with respect to the liquid material discharge direction so that the liquid material discharge surface is substantially parallel to the vertical surface of the step portion of the electronic component when the liquid material is applied. Therefore, the liquid can be reliably applied to the vertical surface of the electronic component, and can be reliably applied to the horizontal surface by the fluidity of the liquid applied to the vertical surface.

[Brief description of the drawings]

FIG. 1 is a liquid material applying apparatus 11 according to an embodiment of the present invention.
FIG.

FIG. 2 is a plan view of the liquid agent application device 11.

FIG. 3 is a side view of the liquid application device 11.

FIG. 4 is a side view showing a liquid material ejection unit of the liquid material application device 11;

FIG. 5 is an enlarged view of a nozzle 25 of the liquid material discharging means and the liquid crystal element 12.

FIG. 6 is a view for explaining a conventional solution applying method.

[Explanation of symbols]

 REFERENCE SIGNS LIST 11 liquid coating device 12 liquid crystal element 13 pallet 14 guide 15 base plate 19 cylinder 21 conductive plate 22 vibrator 23 tube 24 discharge valve 25 nozzle 29 liquid discharge switch 30 tilt start switch 31 control circuit 32 liquid discharge direction 33 liquid discharge surface 34 step Part 35 Vertical plane 36 Horizontal plane

Claims (8)

[Claims] 1. A liquid applying apparatus for applying a liquid to a step portion of an electronic component in a different direction, comprising: an alignment plate on which a plurality of electronic components are placed; Holding means for holding an alignment plate having a guide for determination; tilting means for tilting the holding means; vibrating means for applying vibration to the tilted holding means; and liquid material discharge movably disposed above the holding means. Means for applying a liquid agent. 2. The liquid applying apparatus according to claim 1, wherein when the aligning plate on which the plurality of electronic components are temporarily placed is held by the holding means in a horizontal state, the tilting means is operated to tilt the holding means and then tilt. When the holding means contacts the vibrating means, the vibrating means is operated to apply vibration to the contacted holding means, and the electronic component comes into contact with the guide of the alignment plate by the inclination and the vibration,
2. The control device according to claim 1, further comprising a control unit that, when the positioning of the electronic component is completed, sets the holding unit to be horizontal and then operates the liquid material discharging unit to apply the liquid material to the step portion of the electronic component. Liquid application device. 3. The liquid applying apparatus further includes a tilt start instructing unit for instructing a start of a tilting operation of the tilting unit and a liquid discharging start instructing unit for instructing a start of a liquid discharging operation of the liquid discharging unit. 3. The liquid material applying apparatus according to claim 2, wherein the tilting means is operated in response to the instruction of the tilt start instruction means, and the liquid material discharging means is operated in response to the instruction of the liquid material discharge start instruction means. 4. The liquid applying apparatus according to claim 1, wherein the inclination means includes a cylinder. 5. A conductive plate is attached to said holding means,
2. The liquid medicine applying device according to claim 1, wherein the vibrating means includes a vibrator that contacts the conductive plate when the holding means is inclined. 6. The liquid material applying apparatus according to claim 1, wherein the liquid material discharging means includes a tube for supplying the liquid material, a nozzle for discharging the supplied liquid material, and a discharge valve for controlling a discharge condition of the liquid material. . 7. The liquid material applying apparatus according to claim 6, wherein the nozzle is bent at a predetermined angle θ. 8. A liquid discharge surface of the nozzle is inclined with respect to a liquid discharge direction, and the liquid discharge surface is substantially parallel to a vertical surface of a step portion of the electronic component when the liquid is applied. The liquid application device according to claim 7, wherein