KR19990006205A - Liquid Crystal Display Device Import / Export Device - Google Patents

Abstract

The present invention discloses a liquid crystal display device import / export device. The present invention discloses a table having a shape in which an upper surface of one side is opened; A stepping motor mounted under one side of the table; A lower end connected to the stepping motor, and an upper end of the ball screw rotatably supported at an upper end of the table; An elevator, which is engaged with the ball screw and is lifted, and has a cassette mounted thereon to accommodate a liquid crystal display device; A loading arm disposed on the other side of the table and having several vacuum grooves formed thereon for adsorbing with a vacuum in the settled surface on which the liquid crystal display device is placed, for carrying in / out of the liquid crystal display device to / from the cassette; Means for arranging the liquid crystal display in a correct position at a center of the table on both sides of the loading arm; A pneumatic cylinder mounted to the other upper portion of the table to lift and lower the loading arm to a loading / unloading height; And a rodless cylinder mounted to a central portion of the table between the pneumatic cylinder and the cassette to move the pneumatic cylinder horizontally so that the loading arm moves forward and backward along the cassette direction, wherein the alignment means includes a carrying direction of the liquid crystal display device. A pair of side alignment members for aligning the side with respect to the side; A pair of front and rear alignment members for pushing the front and rear surfaces together; And it characterized in that it comprises a pneumatic cylinder for advancing each alignment member.

Description

Liquid Crystal Display Device Import / Export Device

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display device import / export device, and more particularly, to an apparatus for carrying in / out of a cassette to / from a plurality of liquid crystal display devices in a subsequent process and carrying out the process.

In general, manufacturing a liquid crystal display device requires a number of processes, among which, forming a scribing line for dividing a unit cell on a substrate and breaking along the scribing line. ) Process is included.

When the scribing and breaking process is completed, a plurality of liquid crystal display elements must be moved to a subsequent process. Since the liquid crystal display elements cannot be moved individually, the liquid crystal display elements can be stacked in a vertical stacking manner in a cassette capable of storing about 30 pieces. Will be transported.

However, in the related art, since a plurality of liquid crystal display elements are manually brought in and then taken out by the operator manually, accidents in which the liquid crystal display element and the cassette collide with each other frequently occur, and thus the liquid crystal display elements are often broken.

In particular, there is a problem in that the liquid crystal display device is stained or particles are caused by the force of the hand in relation to the liquid crystal display device brought into / out of the cassette in the state of touching the hand.

When the liquid crystal display element is damaged or stains or particles are deposited in this way, the liquid crystal display element should be discarded, resulting in a problem of lowered yield.

Accordingly, the present invention has been made to solve all the problems caused by the conventional manual method, so that the operator can reduce the time holding the liquid crystal display device by hand as much as possible, and the rest can be automatically brought in / out of the cassette Accordingly, an object of the present invention is to provide a liquid crystal display device import / export device capable of increasing the yield of liquid crystal display devices.

1 to 3 show the import / export device according to the present invention,

1 is a front view

2 is a right side view

3 is a plan view

4 is a plan view showing the alignment means of the liquid crystal display device which is an essential part of the present invention;

Explanation of symbols for the main parts of the drawings

1-cassette 10-table

20-stepping motor 21-ball screw

22-lift 30-loading arm

31-sided 40-pneumatic cylinder

41-rodless cylinder 50, 51-rear alignment member

52, 53-side alignment member

In order to achieve the above object, the present invention provides a table having a shape in which an upper surface of one side is opened; A stepping motor mounted under one side of the table; A lower end connected to the stepping motor, and an upper end of the ball screw rotatably supported at an upper end of the table; An elevator, which is engaged with the ball screw and is lifted, and has a cassette mounted thereon to accommodate a liquid crystal display device; A loading arm disposed on the other side of the table and having several vacuum grooves formed thereon for adsorbing with a vacuum in the settled surface on which the liquid crystal display device is placed, for carrying in / out of the liquid crystal display device to / from the cassette; A pneumatic cylinder mounted to the other upper portion of the table to lift and lower the loading arm to a loading / unloading height; And a rodless cylinder mounted to a central portion of the table between the pneumatic cylinder and the cassette to horizontally move the pneumatic cylinder so that the loading arm moves forward and backward along the cassette direction.

According to the configuration of the present invention described above, when the operator places the liquid crystal display element on the loading arm, it is fixed to the settled surface by vacuum, and after the loading arm is raised to the carrying position by the pneumatic cylinder, it is advanced by the rodless cylinder. As a result, the liquid crystal display device is brought into a cassette which is lifted by a predetermined pitch.

EXAMPLE

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 to 3 show an import / export device according to the present invention, FIG. 1 is a front view, FIG. 2 is a right side view, FIG. 3 is a plan view, and FIG. 4 is an alignment means of a liquid crystal display device which is a main part of the present invention. It is a top view showing.

For reference, in describing the configuration of the present embodiment, the same parts as in the prior art described at the beginning of the specification will be described mainly by omitting the repeated descriptions in order to avoid duplication of description.

1 to 3, the upper right surface of the table 10 is an open shape, through which the cassette 1 is lifted by a predetermined pitch. Therefore, the lower part of the opening is equipped with a stepping motor 20 as a driving source, and the lower end of the ball screw 21 rotated in place by the stepping motor 20 is connected to the stepping motor 20, and the upper end thereof is a table. It is rotatably supported by a bearing on the upper bottom of (10). The elevator 22 is engaged with and lifted by the ball screw 21, and the cassette 1 is mounted on the upper part of the elevator 22, and ascending and descending by a predetermined pitch through the opening.

On the other hand, a means for carrying in / out of the liquid crystal display element to / from the cassette 1 which is lifted by a predetermined pitch is provided on the upper left side of the table 10. That is, the loading arm 30 which moves horizontally in the state where the liquid crystal display device is placed and carries / exports the liquid crystal display device into / from the cassette 1 is spaced apart from the upper left surface of the table 10 at a predetermined interval. . Several vacuum grooves are formed on the abutment surface 31 of the loading arm 30 on which the liquid crystal display device is placed, that is, on the right side of the loading arm 30 facing the cassette 1 to suck the liquid crystal display device in a vacuum. These vacuum grooves are connected to a vacuum means which is essentially provided in the liquid crystal display device manufacturing line to receive a vacuum. Therefore, the present embodiment does not show the vacuum means including the vacuum groove. On the other hand, the mounting surface 31 of the loading arm 30 is attached to the recognition sensor (not shown) for detecting a state in which the liquid crystal display device is placed.

The lower left side of the loading arm 30 is connected to the pneumatic cylinder 40, and is lifted up and down to a predetermined height which is a loading / unloading position by the driving of the pneumatic cylinder 40. In addition, a rodless cylinder 41 is mounted at the center of the table 10 between the pneumatic cylinder 40 and the cassette 1 so that the rodless cylinder 41 horizontally moves each pneumatic cylinder 40. .

If the liquid crystal display elements placed on the mounting surface 31 of the loading arm 30 are not aligned, the liquid crystal display elements collide with the cassette 1 at the time of loading. Both sides are provided with means for aligning the liquid crystal display elements.

That is, as shown in Fig. 4, on the table 10 on both sides of the settled surface 31, a pair of side alignment members 52 for aligning the two side surfaces with respect to the right side which is the entry direction of the liquid crystal display element. 53 is located, and a total of four front and rear alignment means 50 and 51 are arranged to align the front and rear surfaces. Each of the alignment members 50, 51, 52, 53 is not shown, but is moved back and forth by the pneumatic cylinder.

In addition, a collision sensor (not shown) which stops the respective driving sources 20, 40, and 41 when the liquid crystal display element is brought into the cassette 1 in an unaligned state and collides with such an alignment means is also provided. 30 is attached to the lower left of the.

Hereinafter, the operation of this embodiment configured as described above will be described in detail.

First, the import operation will be described.

First, the stepping motor 20 is driven and the ball screw 21 is rotated so that the cassette 1 together with the elevator 22 is first lowered to the lowest position. The reason why the cassette 1 is lowered to the lowermost part is to recognize from which position the liquid crystal display element is stored in advance. Then, the cassette 1 lowered to the lowermost portion is raised in the opposite direction by the reverse rotation operation of the stepping motor 20, and when the lowermost position where the liquid crystal display element is not stored reaches the loading height, the stepping motor As the 20 is stopped, it is in the standby state at that position.

In this state, when the operator places the liquid crystal display device on the mounting surface 31, the alignment members 50, 51, 52, and 53 move forward to align the liquid crystal display device. Subsequently, the vacuum pressure provided by the vacuum means is provided to the vacuum groove, whereby the liquid crystal display element is firmly fixed in the aligned state on the settled surface 31. When the liquid crystal display device is fixed in this way, the loading arm 30 is raised by the pneumatic cylinder 40 to the loading height, that is, the height of the empty cassette 1, and then by the driving of the rodless cylinder 41. 30 is advanced in the cassette 1 direction. That is, when the settling surface 31 of the loading arm 30 enters the cassette 1 and the liquid crystal display element is supported by the cassette 1, the vacuum supply is immediately stopped, and the loading arm 30 is rodless The retraction is caused by driving in the opposite direction of the cylinder 41. Therefore, since the liquid crystal display element remains in the cassette 1 as it is, the operation of bringing one liquid crystal display element into the cassette 1 is completed. By this operation, many liquid crystal display elements can be carried in the cassette 1.

On the other hand, since the carry-out operation proceeds in the reverse order of the carry-in operation, only the repetition of the carry-out operation is described in reverse, so that the description of the carry-out operation is omitted in this embodiment.

According to the present invention as described above, only the operation of placing the liquid crystal display element on the loading arm 30 is performed manually, and the rest of the operation is automatically performed by the apparatus of the present invention, so that the operator You will be able to save as much time and power as you can with your hands.

As a result, it is possible to prevent a situation in which the liquid crystal display element is uneven or stained with particles and must be discarded.

In particular, since the liquid crystal display element is to be brought into the cassette in a pre-aligned state, and is additionally controlled to stop the whole device when brought into the unaligned state, the expensive liquid crystal display element may be damaged by hitting the cassette. Fundamentally preventable.

As a result, damage or damage to the liquid crystal display element can be prevented, so that the yield of the liquid crystal display element can be increased.

On the other hand, the present invention is not limited to the above-described specific preferred embodiments, and various changes can be made by those skilled in the art without departing from the gist of the invention claimed in the claims. will be.

Claims (1)

A table having one side upper surface opened; A stepping motor mounted under one side of the table; A lower end connected to the stepping motor, and an upper end of the ball screw rotatably supported at an upper end of the table; An elevator, which is engaged with the ball screw and is lifted, and has a cassette mounted thereon to accommodate a liquid crystal display device; A loading arm disposed on the other side of the table and having several vacuum grooves formed thereon for adsorbing with a vacuum in the settled surface on which the liquid crystal display device is placed, for carrying in / out of the liquid crystal display device to / from the cassette; Means for arranging the liquid crystal display in a correct position at a center of the table on both sides of the loading arm; A pneumatic cylinder mounted to the other upper portion of the table to lift and lower the loading arm to a loading / unloading height; And a rodless cylinder mounted to a central portion of the table between the pneumatic cylinder and the cassette to horizontally move the pneumatic cylinder to move the loading arm forward and backward along the cassette direction. The alignment means includes a pair of side alignment members for aligning the side of the liquid crystal display device in the carrying direction; A pair of front and rear alignment members for pushing the front and rear surfaces together; And a pneumatic cylinder for advancing and rearranging each of the alignment members.