KR200404046Y1 - Roller of conveyor - Google Patents

Abstract

It is an object of the present invention to provide a transfer roller of a substrate transfer apparatus which is capable of lowering the manufacturing cost of the transfer roller to the maximum by improving the structure of the transfer roller for transferring the substrate.

Therefore, the present invention includes a rotating shaft which is installed at intervals on the transfer table, a feed roller installed on the rotating shaft and the glass substrate is placed to transfer the glass substrate, and a driving motor connected to the rotating shaft to drive the rotating shaft. In the transfer apparatus, the transfer roller provides a transfer roller of the substrate transfer apparatus including a hub which is fitted to the rotary shaft, a core installed in the outer peripheral portion of the hub, and an outer skin applied to the outer surface of the core to contact the glass substrate. do.

Description

Feed roller of substrate feeder {ROLLER OF CONVEYOR}

The present invention relates to a substrate transfer apparatus, and more particularly to a transfer roller of the substrate transfer apparatus.

For example, a glass substrate is used as a front panel in a liquid crystal display, and the glass substrate is transferred through a substrate transfer apparatus installed along a process.

In general, a glass substrate transfer apparatus for a liquid crystal display device is provided on a transfer table, and the glass substrate is placed on the transfer roller for transferring the glass substrate, and a driving roller connected to the axis of the transfer roller to transfer the rotational driving force generated from the power source. It includes.

Accordingly, the glass substrate transfer device has a glass substrate placed on the transfer roller, the lower surface of the glass substrate is in contact with the outer peripheral surface of the transfer roller by the weight of the glass substrate, when the transfer roller is rotated by the friction force generated from the mutual contact surface The glass substrate is moved along the rotational direction of the feed roller.

In this case, the feed roller is made of a material that is high in friction to prevent sliding with the glass substrate and minimizes the occurrence of scratches on the glass substrate, and is rigid to increase the coupling force between the feed rollers and the rotating shaft on which the feed roller is installed. Is required.

Therefore, the feed roller installed in the substrate transfer device is manufactured by using materials having excellent adhesive properties such as adhesion even though it is expensive, and a hub made of general PP material having excellent strength is installed at the center portion in contact with the rotating shaft, and is coupled to the rotating shaft. .

By the way, the conventional feed roller has a disadvantage in that the manufacturing cost is increased as expensive materials make up most of the feed roller as the ring-shaped hub is attached to the center of the feed roller.

The present invention is designed to improve the above-described disadvantages of the prior art, and an object of the present invention is to improve the structure of the transport roller for transporting the substrate to reduce the manufacturing cost of the transport roller to the maximum transport roller of the substrate transport apparatus In providing.

In addition, the present invention has another object to provide a transfer roller of the substrate transfer device to minimize the use of expensive ultra-high molecular weight ethylene.

In order to achieve the above object, the present invention has a rotating shaft which is installed at intervals on the transfer table, a feed roller installed on the rotating shaft and placed on the glass substrate to transfer the glass substrate, and connected to the rotating shaft to drive the rotating shaft. In a transfer apparatus including a drive motor for the transfer roller, the transfer roller includes a hub fitted to the rotating shaft, a core installed in the outer peripheral portion of the hub, and an outer shell applied to the outer surface of the core and in contact with the glass substrate.

Here, the core may be integrally formed with the hub.

The outer shell is preferably made of ultra-high molecular weight polyethylene (UHMWPE), the hub and core is preferably made of P.P material.

As a result, most of the feed rollers are filled with hubs and cores, and the outer skin contacting the glass substrate can be used with a minimum amount.

In addition, the core may be made of a structure that is coupled to the hub by combining the two to form a pair between the hub.

In order to assemble the pair of cores, a protrusion may be formed on the inner surface of one core and a groove may be formed on the inner surface of the other core corresponding thereto.

In addition, a plurality of coupling parts may be formed on the outer surface of the core so as to increase the coupling force with the envelope.

On the other hand, the feed roller may have a structure in which the core is integrally formed through a rib formed along the outer circumferential surface of the hub.

The rib is preferably formed along the center of the outer circumferential surface of the hub, the support plate is attached to both sides of the rib so as to support the rib can be connected between the hub and the core.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. In the present embodiment, a case of transferring the glass substrate used as the front panel of the liquid crystal display in the liquid crystal display manufacturing process will be described as an example.

1 is a view showing a substrate transfer apparatus according to an embodiment of the present invention, according to the above drawings, the substrate transfer apparatus 10 according to the present embodiment is a transfer table 11 made of a frame structure and the transfer table Rotating shaft 12 installed in the width direction at regular intervals on the (11), a plurality of feed rollers 20 for transferring the glass substrate 100 placed on the rotary shaft 12 at intervals, It is connected to the rotary shaft 12 includes a drive motor (not shown) for rotating the rotary shaft 12.

Accordingly, the glass substrate 100, which has undergone one process, is placed on the feed roller 20 installed in the transfer table, and the feed roller 20 rotates at a constant speed when the rotating shaft 12 rotates according to the driving of the driving motor. It can be moved along the transfer table by.

Here will be described the structure of the feed roller according to an embodiment of the present invention.

Figure 2 is an exploded perspective view showing the configuration of the transfer roller of the substrate transfer apparatus according to an embodiment of the present invention, Figure 3 is a cross-sectional view showing the assembly state of the transfer roller according to an embodiment of the present invention, Figure 4 is the present invention It is a cross-sectional view showing a state in which the outer skin is coated with a conveying roller according to an embodiment of the.

Referring to the drawings, the feed roller 20 according to the present embodiment is a circular hub 30 is fitted to the rotating shaft 12 and fixed, the hub 30 is installed on the outer peripheral portion of the feed roller 20 Core 40 constituting the structure, the outer structure attached to the outer surface of the core 40 is installed to include an outer shell 60 forming the outer shape of the transfer roller 20.

Therefore, as shown in FIG. 4, the transfer roller 20 is formed of an internal structure and an external structure installed in the hub 30, and has an outer structure in which the outer structure 60 is thinly coated on the internal structure. 60) is designed to minimize the use of.

Here, the shell 60 is made of ultra-high molecular weight polyethylene (UHMWPE) as a portion substantially in contact with the glass substrate 100.

In addition, the hub 30 and the core 40 is made of a P.P material.

Accordingly, most of the feed roller 20 is filled with the hub 30 and the core 40 made of PP, and the outer shell 60 made of ultra high molecular weight ethylene can be used in a minimum amount.

Meanwhile, as shown in FIGS. 5 and 6, the hub 30 is vertically installed along the center of the outer circumferential surface of the insertion tube 31 and the insertion tube 31 fixed to the rotary shaft 12. A flange 32 coupled with the core 40.

The insertion tube 31 has a structure in which at least one key groove 34 is formed along the longitudinal direction of the inner circumferential surface so that rotation of the insertion tube 31 can be coupled in a controlled state.

In addition, the flange 32 is formed along the circumference of the insertion tube 31 has a circular shape and has a structure in which a plurality of holes 33 are penetrated at intervals on the front surface thereof.

The holes 33 are preferably arranged to be symmetrical with respect to the center of the flange 32. 5 illustrates a structure in which six holes 33 are arranged along the flange at an angle of 60 degrees. This structure provides the advantage of coupling the core 40 and the flange 32 in any position when installing the core 40 in the flange 32 will be described later.

The length of the insertion pipe 31 and the protruding length of the flange 32 are not particularly limited.

Referring to the core 40 is installed on the flange 32 to form the internal structure of the feed roller 20 as follows.

7 and 8 show the structure of the core 40. According to the above drawings, the core 40 has a structure in which two pieces are formed in pair and face each other with the flange 32 interposed therebetween to be installed with the flange 32.

The core 40 has a circular plate structure, and a hole 41 having a size corresponding to the outer diameter of the insertion tube 31 is formed at the center thereof so that the insertion tube 31 penetrates.

In addition, a pin portion 42 having a protruding pin 43 is formed on the inner side of one core 40 toward the outer end side for assembly between the pair of cores 40, and the other core 40 corresponding thereto. On the inner surface of the) is formed a groove 45, the groove 44 is processed so that the protruding pin 43 is fitted.

In addition, a through portion penetrating the hole 33 at a position corresponding to the hole 33 of the flange 32 on the inner surface of the core 40 to couple the core 40 and the flange 32. A protrusion 46 is formed, and a groove 47 is formed at the center of the through part 46, and a protrusion 48 fitted into the groove 47 on the inner surface of the other core 40 corresponding thereto. Has a formed structure.

Here, the inner surface of the core 40 refers to the joint surface when the two cores 40 are bonded to each other with the flange 32 interposed therebetween, and on the contrary, the outer surface of the core 40 It is defined as meaning the opposite side.

In the present embodiment, the pair of cores 40 located on both sides of the flange 32 are all formed in the same shape. For this purpose, six holes formed in the flange 32 are formed on the inner surface of one core 40. 33, three projections 46 are formed at an angle of 120 degrees, and the projections are inserted into the grooves 47 of the penetration portions 46 between the penetration portions 46 and the penetration portions 46. 48) is arranged.

Therefore, the through part 46 and the protrusion 48 form a structure alternately arranged with each other at an angle of 60 degrees. When the two cores 40 of the same structure are brought into close contact with each other at an angle of 60 degrees, the projections 48 of the other cores 40 are formed in the grooves 47 of the penetrating portions 46 of the one core 40. Correspondence will be able to fit together.

Similarly, the pin part 42 in which the protruding pin 43 is formed and the groove part 45 into which the protruding pin 43 of the pin part 42 is fitted are also disposed at an angle of 120 degrees, and the pin part 42 and the groove part 45 are The structure is formed alternately.

Preferably, the penetrating portion 46 and the groove portion 45 are located on the same line in the radiation direction at the center of the core 40, and the pin portion 42 is disposed on the radiation passing through the protrusion 48 at the center of the core 40. Position it.

Here, the height of the through portion 46 with respect to the inner surface of the core 40 has a structure corresponding to the thickness of the flange 32, the through portion 46 is a hole 33 of the flange 32 completely The inner surface of the core 40 facing through is able to be in contact.

In addition, the height of the groove 45 with respect to the inner surface of the core 40 corresponds to half of the thickness of the flange 32, and the pin portion 42 in which the protruding pin 43 is formed is also inside the core 40. The height of the side has a structure corresponding to half of the thickness of the flange (32).

Accordingly, when the pair of cores 40 face each other with the flange 32 interposed therebetween, the through-hole portion 46 and the groove portion 45 may be formed between the core bodies 40 by the thickness of the flange 32. And the pin portion 42 protrudes to a predetermined height so that the through portion 46 is in contact with the inner surface of the core 40, and the groove portion 45 and the corresponding pin portion 42 are in contact with each other so that the two core bodies 40 are contacted with each other. It can be supported at intervals.

In addition, the outer tip of the core 40 also forms the flesh 49 toward the inner side, so that the pair of cores 40 face each other, so that the flesh 49 of the outer tip contacts and forms the outer circumferential surface of the core 40. It is.

This is because, as mentioned, the flange 32 is located between the pair of cores 40 so that the two cores 40 are separated by the thickness of the flange 32, and thus, The flesh formed at the outer end compensates the thickness of the flange 32 so that the two cores 40 can be arranged in parallel, and the flesh 49 is in close contact with each other at the outer end of the core 40 so that a pair of cores ( 40) It will be able to close the inside.

Here, the height of the flesh 49 with respect to the inner surface of the core 40 is to correspond to half of the thickness of the flange (32).

The flesh 49 formed at the outer end of the core 40 is preferably formed that the outer edge of the core 40 is smoothly curved.

In addition, the outer surface of the core 40 is formed with a plurality of engaging portions 50 are formed so as to increase the bonding force with the outer shell (60).

In the present embodiment, the coupling part 50 is formed in a cylindrical shape, and the formation position is between the groove part 45 and the protruding pin 43 along the same circular arc in which the through part 46 and the groove part 45 are located, and the through part. It is formed between the 46 and the projection 48.

In addition, in order to increase the coupling force between the core 40 and the shell 60, the outer surface of the core 40 is stepped in the groove-shaped step of processing the surface stepped in a circular shape along the position where the coupling portion 50 is formed (51) can be further formed.

Therefore, as the outer shell 60 flows into the stepped portion 51 which is stepped lower than the outer surface of the core 40, its coupling force is increased.

Here, the feed roller 20 is not limited to the above embodiment in the structure of the coupling part 50 and its formation position or the step height of the stepped portion 51 or its formation position, and is located on the outer surface of the core 40. It is possible to form.

Hereinafter, the assembly process of the transfer roller according to the embodiment will be described.

First, the core 40 which is an internal structure is fixed to the hub 30. A flange 32 is formed on an outer circumferential surface of the hub 30 so that two cores 40 are fixed to the hub 30 via the flange 32.

The pair of cores 40 installed on the flange 32 are all made of the same structure, regardless of the position of the flange 32, the cores 40 of the same structure can be coupled to both sides of the flange 32 Will be.

When the core 40 is inserted into the insertion tube 31 of the hub 30, the insertion tube 31 penetrates through the hole 41 formed in the center of the core 40, and thus, based on the flange 32. The core 40 is fitted to both ends of the insertion tube 31.

In this state, each core 40 is rotated with respect to the insertion tube 31 so as to correspond to the position of the hole 33 formed in the flange 32, and the through portion 46 formed on the inner surface of the core 40 and the projections. The position of 48 is adjusted to the position of the hole 33.

Here, the through parts 46 and the protrusions 48 formed on the inner surface of the core 40 are alternately formed at intervals of 60 degrees, so that the three through parts 46 formed on one core 40 have the flanges. Three through-holes 46 formed in the other core 40 and penetrating through the holes 33 of 32 are penetrated into the remaining three holes 33 of the flange 32.

Therefore, the projections 48 formed between the penetrating portion 46 and the penetrating portion 46 of the core body 40 are placed at positions corresponding to the penetrating portion 46 of the core body 40 facing each other naturally.

In this state, when the two cores 40 are joined to each other, the protrusions 48 of the cores 40 facing each other in the state where the through portion 46 penetrates into the hole 33 of the flange 32 are formed in the through portion 46. It is fitted into the groove 47 formed in the center of the.

When the protrusion 48 is completely fitted into the groove 47 of the through part 46, the two cores 40 are fixed to the flange 32 while being in close contact with both sides of the flange 32, respectively.

On the other hand, if the position of the through portion 46 and the projection 48 formed on the two cores 40 as described above, the position of the pin portion 42 and the groove portion 45 formed on the outer peripheral side of each core 40 is mutually Will be matched.

Accordingly, when the two cores 40 are bonded as described above, the protruding pins 43 formed on the pin portion 42 of the one core 40 have a groove 44 formed in the groove 45 of the other core 40. Two cores 40 are attached and fixed while being fitted in the.

In this case, the pin portion 42 and the groove portion 45, respectively, the height of the half of the thickness of the flange 32, the pin portion 42 when the protruding pin 43 of the pin portion 42 is completely fitted into the groove 44 of the groove portion 45 pin portion The 42 cores and the grooves 45 are in contact with each other to support the two cores 40, and the two cores 40 may be supported at intervals from each other by the thickness of the flange 32.

In addition, the flesh 49 formed at the tip of the core 40 is also formed at a height half of the thickness of the flange 32 toward the inner surface of the core 40 such that the flesh 49 of the two cores 40 faces each other. While forming the outer edge of the internal structure.

As such, when the hub 30 and the core 40 are assembled, the state is as shown in FIG. 3, and in this state, ultra high molecular weight ethylene is applied to the outer surface of the core 40 as shown in FIG. Will form.

The sheath 60 is covered with the core 40 and attached to the core 40. In the present embodiment, the shell 60 is applied at the same height as the coupling portion 50 protruding from the outer surface of the core 40, but is not particularly limited in the coating thickness.

As shown in FIG. 4, the outer shell 60 attached to the core 40 penetrates between the coupling portions 50 formed on the outer surface of the core 40 and into the stepped portion 51 so that the coupling force with the core 40 is increased. Will increase.

As described above, most of the transfer roller 20 is occupied by the core 40 and the hub 30, and the shell 60 is applied only to the outside of the core 40, thereby minimizing the usage of the shell 60. .

On the other hand, Figures 9 and 10 and 11 shows another embodiment of the present feed roller 20.

According to the above drawings, the feed roller 20 has a circular hub 30 that is fitted and fixed to the rotating shaft 12 of the substrate transfer device, and is installed on the outer circumference of the hub 30 to form an internal structure of the feed roller 20. Core 40, an outer structure attached to the outer surface of the core 40 includes an outer shell 60 forming the outer shape of the transfer roller 20, the core 40 is the outer peripheral surface of the hub 30 It has a structure formed integrally via the rib 70 formed along the center.

The hub 30 has a circular shape, and a fastening hole 35 into which the rotary shaft 12 is fitted is formed at the center thereof, and a key groove or a protrusion 36 for coupling with the rotary shaft 12 is formed at an inner circumferential surface thereof.

The core 40 is a ring-shaped structure made of a width smaller than the width of the hub 30, the outer end is a curved structure in the form of an arc.

And the rib 70 connecting the core 40 and the hub 30 is a thin plate structure formed integrally with the core 40 and the hub 30, the center of the core 40 and the hub 30 Is formed along the spaced apart between the hub 30 and the core 40.

Here, since the rib 70 has a thin thickness, the support force for the core 40 may be weak. Accordingly, the hub 70 may be spaced at both sides of the rib 70 so as to secure the rigidity of the rib 70. 30 and a support plate 71 for supporting the core 40 are further installed.

The support plate 71 is formed in a direction perpendicular to the side of the rib 70 and is connected between the hub 30 and the core 40.

In this embodiment, the support plate 71 is integrally connected to the rib 70, the hub 30 and the core 40.

Accordingly, as shown in FIG. 10, when ultra-high molecular weight ethylene is applied to the exterior of the core 40 to form the shell 60, the shell 60 completely surrounds the core 40 while the outer circumferential surface of the hub 30 is formed. It penetrates into the space between the hub 30 and the core 40 formed by the rib 70 and can be completely attached to the hub 30.

As described above, it can be seen that the present invention provides a feed roller having a very advanced structure. While exemplary embodiments of the present invention have been shown and described, various modifications and other embodiments may be made by those skilled in the art. Such modifications and other embodiments will be considered and included in the appended claims without departing from the true spirit and scope of the present invention.

As described above, according to the present invention, the manufacturing cost of the feed roller 20 can be lowered by improving the structure of the feed roller 20 to minimize the use of ultra-high molecular weight ethylene which is an expensive material.

1 is a schematic plan view showing a substrate transfer apparatus according to an embodiment of the present invention.

Figure 2 is an exploded perspective view showing the configuration of the transfer roller of the substrate transfer apparatus according to an embodiment of the present invention.

3 is a cross-sectional view showing an assembled state of the transfer roller according to the embodiment of the present invention.

4 is a cross-sectional view showing a state in which the outer skin is coated with a transfer roller according to an embodiment of the present invention.

5 to 8 are views showing some configurations of the transfer roller according to an embodiment of the present invention.

9 to 11 is a view showing the structure of the transfer roller according to another embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

10: transfer device 11: transfer table

12: rotating shaft 20: feed roller

30 hub 31 insertion tube

32: flange 33: hole

34: keyway 35: fastening hole

40: core 41: hole

42: pin portion 43: protruding pin

44: groove 45: groove

46: penetrating portion 47: groove

48: turning 49: flesh

50: junction 51: stepped portion

60: jacket 70: rib

71: support plate

Claims (13)

In the transfer device comprising a rotary shaft which is provided on a transfer table at intervals, a transfer roller for mounting the glass substrate and the glass substrate is placed on the rotary shaft, and a drive motor connected to the rotary shaft to drive the rotary shaft. , The feed roller has a hub installed to be fitted to the rotating shaft, a core installed in the outer peripheral portion of the hub, and an outer shell coated on the outer surface of the core to be in contact with the glass substrate. Feed roller of the substrate transfer device comprising a. The transfer roller of claim 1, wherein the outer shell is made of ultra high molecular weight ethylene. The transfer roller of claim 1, wherein the hub and the core are made of P.P material. The substrate transfer method of claim 1, wherein the hub includes an insertion tube fitted to the rotation shaft, and a flange formed to protrude along the center of the outer circumferential surface of the insertion tube and having a plurality of holes penetrated therebetween. Feed roller of the device. The transfer roller of claim 4, wherein the holes are arranged to be symmetric with respect to the center of the flange. The method of claim 4, wherein the core is a circular plate structure, the center is formed with a hole corresponding to the outer diameter of the insertion tube, two pairs are formed in close contact with the flange between them. Feed roller of the substrate feeder. 7. The substrate transport apparatus of claim 6, wherein the core body penetrates the hole on an inner surface thereof, and a through portion having a groove formed at a center thereof and a protrusion fitted into the groove of the through portion are alternately formed in accordance with the position of the hole. Feed roller. The transfer roller of claim 6 or 7, wherein the core is alternately formed at regular intervals with a pin portion having a protruding pin formed on an inner surface thereof, and a grooved portion in which a groove is processed so that the protruding pin is fitted. . The transfer roller of claim 8, wherein the height of the through part with respect to the inner surface of the core corresponds to the thickness of the flange, and the height of the groove part and the pin part corresponds to half of the thickness of the flange. 7. The transport roller of claim 6, wherein the outer tip of the core is formed with flesh having a height corresponding to half of the thickness of the flange toward the inner surface. The transfer roller of claim 1, wherein the core has a plurality of coupling parts protruding from the outer surface of the core to increase the coupling force with the outer shell. The transfer roller of claim 1, wherein the core is integrally formed through a rib formed along a center of the outer circumferential surface of the hub. The transfer roller of claim 12, wherein the rib has a plurality of support plates formed on both sides thereof to support the hub and the core at predetermined intervals.