KR200324594Y1 - Hang Prevention Device of Transfer Shaft - Google Patents

Abstract

The present invention transfers various semiconductor components such as LCD (Liquid Crystal Display) substrates by using a transfer device, which is rotated by the power unit and the sag of the shaft that is placed on the LCD substrate is transferred. In the case of using a wider shaft, it is to prevent the upper part of the shaft from sagging downward due to its own load due to the long axis and the load by the conveyed material.

According to the present invention, a driving gear unit is coupled to one end, and a support bearing is coupled to both ends, and the transfer apparatus includes a transfer shaft coupled to form a plurality of guide rollers at equal intervals, which corresponds to a center portion of the transfer shaft. As the bearing roller is engaged in the position, and the deflection prevention device made of the air bearing and the cradle is installed below, the long shaft feed shaft can completely prevent the central part from sagging downward due to the load. In addition to the smooth rolling drive of the feed shaft, it is possible to prevent the unstable rotation due to the deflection of the feed shaft and the load is biased on a specific portion to prevent the occurrence of overload.

Description

Hang Prevention Device of Transfer Shaft

The present invention relates to a deflection prevention device of a transfer shaft, and more particularly, in the transfer of various semiconductor components such as an LCD (Liquid Crystal Display) substrate using a transfer device, the rotation is made by the power unit and the LCD substrate is The deflection phenomenon of the shaft being mounted and conveyed, that is, when the width of the conveying device is wide, it is to prevent the deflection of the upper part of the center due to its own load due to the long axis and the load by the conveyed object.

In particular, the rotation of the shaft for the smooth transfer of the conveyance of the LCD substrate, etc. relates to a sag prevention device of the transfer shaft to achieve a smooth rotation without any interference, to completely eliminate the deflection by the load.

In general, a semiconductor component such as an LCD substrate or other electronic products and components are manufactured through a number of processes, in this case, the conveyor (conveyor) is mainly used as a means for transferring the parts to be manufactured in each process, It is used.

Such a conveying device includes a power unit consisting of an electric motor for imparting power transmission, that is, a rotational force, power transmission means such as a chain or a belt for transmitting a rotational force by a plurality of conveying shafts, and the power unit to the conveying shaft, and conveying. It consists of various bearings installed for smooth rotation of shafts and electronic sensors such as various limit switches for systematic and automated driving.

Therefore, the conveying apparatus for conveying the currently used LCD substrate has a power unit and a conveying shaft connected by a power transmitting means, the conveying shaft has a certain length, and is installed within a predetermined range where the conveying of the conveyed object is required at equal intervals. do.

At this time, the transfer shaft is rotated at the position set by the power transmission means, the bearing is installed at both ends for smooth rotation, the width and the length is set according to the size or purpose of the conveyed material.

The conveying shaft used in the conventional conveying apparatus as described above, the length is set according to the size of the conveying material to be conveyed, if the length of the conveying shaft is short, smooth conveying without any difficulty, LCD substrate As described above, a long shaft conveying shaft is used in a conveying apparatus for conveying a semiconductor component which is relatively wide and requires attention to vibration and impact.

On the other hand, Figure 1 is a front schematic view showing a conventional transfer device, a transfer device for transferring semiconductor components, in particular, LCD substrate, the transfer shaft 100 having a certain length is installed in the transverse direction, one end The drive gear unit 110 is coupled, the support bearings 120 are coupled to both ends, and the plurality of guide rollers 130 are coupled to form equal intervals.

Accordingly, the transfer shaft 100 is rotated by the drive gear unit 110 and is rolled (rolled) in a state in which a transfer object, that is, an LCD substrate, is to be transferred to the guide roller 130 coupled to form an equal interval. Will be,

However, as described above, in transporting the conveyed material (LCD substrate), in the process of transporting the small transport material in the conventional transport device, there is no problem, but in the process of transporting the relatively large transport material Since a large width of the conveying device is required in proportion to the size of the conveyed object, a relatively long conveying shaft having a long length is used. In this case, as illustrated by the dashed line in FIG. 1, the conveying shaft 100 The central part of the) was deflected downward due to its own load and the weight of the conveyed material.

As described above, as the deflection phenomenon of the transfer shaft 100 occurs, normal rolling is not performed in the process of transferring the conveyed material, and rotation of the feed shaft by the drive gear 110 is irregular and eccentrically rotated. Excessive load on the support bearing 120, which is being supported by the transfer shaft, is biased on a part of the overload, and thus, the conveyance of the conveyed material is not made smoothly as a whole, resulting in reduced workability and productivity, and inefficiency. Discontinuance occurred, requiring frequent repairs and maintenance of the feeder.

The present invention is to solve the conventional closed end as described above, the purpose is to roll and transfer the conveyed material of a semiconductor component such as LCD substrate using a conveying device, the conveyed material is rolled and rolled, the conveying consisting of a long axis By installing a deflection preventing bearing for bearings in the center part of the shaft, the transfer shaft prevents the center part from sagging downward due to the load, and unstable rotation due to the deflection phenomenon and the load is biased to a specific part. An overload is generated, and this is to provide a new type of deflection prevention device of the transfer shaft, which can prevent the efficiency, work and productivity of the conveying device from being transferred.

In order to achieve the above object, the present invention is a drive gear portion is coupled to one end, the support bearing is coupled to both ends, the transfer device provided with a transfer shaft coupled to form a plurality of guide rollers at equal intervals, The bearing roller is coupled to a position corresponding to the center portion of the transfer shaft, and a deflection prevention device consisting of an air bearing and a cradle is installed below.

In this invention, the deflection prevention feature has a feature consisting of an auxiliary bearing arranged on a fixed shaft supported by a support bracket.

In addition, the deflection prevention tool has a top surface is formed to be curved to form a slide portion; It has a feature consisting of a support bracket coupled to both sides of the bottom of the pedestal.

1 is a front schematic view showing a conventional conveying apparatus,

Figure 2 (a), (b) is a front and side schematic view showing a deflection prevention device of the transfer shaft according to the present invention,

3 (a), (b) is a front and side schematic view showing another embodiment of the deflection prevention device according to the present invention,

Figure 4 (a), (b) is a front and side schematic view showing another embodiment of the deflection prevention device according to the present invention.

<Explanation of symbols for the main parts of the drawings>

1: Deflection prevention tool 2: Air bearing

3: stand 4: support bracket

5: Fixed shaft 6: Auxiliary bearing

7: Slide section 7 ': Oil supply groove

8: Base 9: Fixed Bracket

10: Feed shaft 12: Bearing roller

Hereinafter, the present invention in more detail by the accompanying drawings as follows.

Figure 2 (a), (b) is a front and side schematic view showing a deflection prevention device of the transfer shaft according to the present invention, the deflection prevention device 1 of the present invention consists of an air bearing (2) and the cradle (4) However, the bearing roller 12 is coupled to a position corresponding to the center of the transfer shaft 10, the air bearing (2) is installed to surround a portion of the lower outer peripheral surface of the bearing roller 12, the air bearing ( 2) is fixed by the cradle (3).

At this time, the driving gear portion 20 is coupled to one end of the transfer shaft 10, the support bearing 30 is coupled to both ends, and the plurality of guide rollers 40 are coupled to form equal intervals.

3 (a), (b) is a front and side schematic view showing another embodiment of the deflection prevention device according to the present invention, the bearing roller 12 coupled to the position corresponding to the center portion of the transfer shaft 10 The deflection prevention tool 1 is formed so that the auxiliary bearing 6 is installed on the fixed shaft 5 which is laid down by the support bracket 4 on both sides of the lower side.

At this time, the auxiliary bearing 6 and the outer peripheral surface of the bearing roller 12 are installed to achieve a contact state.

4 (a), (b) is a front and side schematic view showing another embodiment of the deflection prevention device according to the present invention, the bearing roller 12 coupled to the position corresponding to the center portion of the feed shaft 10 A pedestal 8 is installed to form a state in which the slide portion 7 is in contact with the outer circumferential surface of the pedestal, and the pedestal 8 is provided with a deflection prevention device 1 configured to be installed by fixing brackets 9 coupled to both sides of the bottom. To indicate.

At this time, the slide portion 7 of the pedestal 8 is formed with a plurality of oil supply groove (7 ') for minimizing friction due to contact and lubrication.

As described above, the use state of the present invention is as follows.

As shown in Figs. 2 (a) and 2 (b), the power unit, the power shear means (not shown in the drawing since they are generally used), and the driving gear unit 20 are coupled to one end, At the end, the support bearing 30 is coupled, and the plurality of guide rollers 40 are coupled at equal intervals, and the center portion is connected to the LCD substrate by using the long feed shaft 10 having the bearing roller 12 coupled thereto. The transfer device for transferring the same semiconductor component is installed, but the deflection prevention device (1) consisting of the holder (3) and the air bearing (2) is installed below the bearing roller (12).

As described above, since the deflection prevention device 1 is installed at the position corresponding to the center of the transfer shaft 10 to support it, in the process of transferring the LCD substrate, which is the object to be conveyed by using a conveying device, a conveyance made of a long axis. The central portion of the shaft 10 is prevented from sagging phenomenon caused by the downward load by its own load or by the conveyed material.

At this time, the air bearing 2 of the deflection prevention device 1 is not in direct surface contact with the bearing roller 12, and naturally rotates without a contact surface by air and is driven in a frictionless state.

Since the air bearing is a well-known technology that is widely used in the industry at present, a detailed description thereof and a description of the drawings are omitted.

Therefore, the air shaft 2 of the deflection prevention device 1 facilitates the rolling drive in a normal position without deflection due to the load, so that the conveyed material, that is, the LCD substrate Efficient transfer will be achieved.

On the other hand, the deflection prevention device 1 of the conveying shaft 10 according to the present invention can be implemented in various forms, as shown in the accompanying drawings Figure 3 (a), (b) the first embodiment, When the auxiliary bearings 6 are installed on both sides of the outer circumferential surface of the bearing roller 12 coupled to the position corresponding to the center of the transfer shaft 10 by using the support bracket 4 and the fixed shaft 5, Since the auxiliary bearing 6 is in contact with the bearing roller 12 by the support bracket 4 and secures a fixed position, the feed shaft 10 is normally lowered by the auxiliary bearing 6 without sagging. Rolling driven in a transverse direction (horizontal state), the second embodiment is the outer diameter of the bearing roller 12 coupled to the conveying shaft 10, as shown in the accompanying drawings, Figure 4 (a), (b) It has the same curvature as the slide portion 7 is formed on the upper surface (8) It is installed below the bearing roller 12 by using the positive bracket (9), the bearing roller 12 is installed in such a state that the surface is in direct contact with the bearing roller 12 is directly mounted on the pedestal (8).

Therefore, the conveying shaft 10 is supported in a state in which the bearing roller 12 is directly mounted on the pedestal 8, thereby preventing downward deflection, and the surface contact with the slide portion 7 of the pedestal 8. In order to reduce the friction caused by the smooth rotation can be made, a plurality of oil supply groove (7 ') is formed, a certain amount of oil is injected.

As described above, by installing the deflection prevention device 1 according to the present invention so as to be positioned below the center portion of the transfer shaft 10, that is, the bearing roller 12, the conveying material such as an LCD substrate using a transfer device In conveying, it is possible to completely prevent the downward deflection phenomenon of the conveying shaft 10 made of a long axis.

As described above, according to the use of the deflection prevention device of the conveying shaft according to the present invention, in the rolling and conveying of a conveying object such as an LCD substrate using the conveying apparatus, the conveying shaft composed of the long axis is lowered in the middle part by the load. It is possible to completely prevent the deflection of the drive shaft, so that the smooth rolling drive of the feed shaft is performed, and at the same time, the unstable rotation due to the deflection of the feed shaft and the load are biased due to the specific load can be prevented from occurring. Therefore, not only can achieve a stable and efficient transfer, there is an effect to improve the efficiency and work and productivity for the transfer of the overall transfer device.

Claims (4)

In the transfer device having a feed shaft 10 is coupled to one end of the drive gear 20, the support bearing 30 is coupled to both ends, a plurality of guide rollers 40 are coupled to form an equal interval , A bearing roller 12 coupled to a position corresponding to a center portion of the transfer shaft 10; Deflection prevention device of the transfer shaft, characterized in that the deflection prevention device (1) consisting of an air bearing (2) and the cradle (3) is installed below the bearing roller (12). The method of claim 1, The deflection prevention device (1) is a deflection prevention device of the transfer shaft, characterized in that consisting of an auxiliary bearing (6) arranged on a fixed shaft (5) supported by a support bracket (4). The method of claim 1, The deflection prevention device 1 includes: a pedestal 8 having an upper surface curvature and a slide portion 7 formed thereon; Deflection apparatus of the transfer shaft, characterized in that consisting of a fixed bracket (9) coupled to both sides of the bottom of the pedestal (8). The method of claim 3, wherein The slide portion (7) of the pedestal (8) is a deflection prevention device of the transfer shaft, characterized in that the oil supply groove (7 ') is formed.