TWI423375B - Roller conveying device - Google Patents

Description

Roller conveyor

This invention relates to a delivery device, and more particularly to a roller delivery device.

With the advancement of optical technology and semiconductor technology, liquid crystal display (LCD) has been widely used in electronic product display devices. LCD monitors have high image quality, small size, light weight, low voltage drive, low power consumption and wide application range. They have been widely used in portable TVs, mobile phones, video recorders, and notebook computers. In consumer electronics or computer products such as desktop monitors and projection TVs, it has become the mainstream of displays.

In the manufacturing process of a liquid crystal display, it is often necessary to transport a glass substrate by a roller conveyor in each process. Especially in the cleaning process of the glass substrate, since the process environment is very humid and slippery, it is necessary to arrange a rubber gasket on the roller to increase the friction between the roller and the glass substrate. However, the glass substrate often applies a specific chemical in the etching or cleaning process, which easily causes the rubber gasket to age and expand. Therefore, in the process, the rubber gasket often falls off from the roller, and the glass substrate directly contacts the roller to cause damage, or It is caused by the fact that the rubber gasket is detached, so that the roller cannot drive the glass substrate.

The invention provides a roller conveying device which has an annular gasket which is not easy to fall off from the roller, and the roller conveying device has a long service life.

An embodiment of the present invention provides a roller conveyor apparatus including at least one rotating shaft, a plurality of rollers, and a plurality of annular gaskets. The roller sleeve is placed on the rotating shaft, and the outer circumferential surface of each roller is provided with at least one groove, wherein each groove has two opposite side walls, and the two side walls have a rough surface. Annular washers are respectively disposed in the grooves of the rollers.

In an embodiment of the invention, the two side walls of each of the grooves have a serrated surface.

In an embodiment of the invention, the serrations on the two side walls of each of the grooves project toward the bottom of the groove.

In an embodiment of the invention, the serrations on the two side walls of each of the grooves are a spiral pattern surrounding the roller.

In an embodiment of the invention, the serrations on the two side walls of each of the grooves include a plurality of concentric circular patterns surrounding the roller.

In an embodiment of the invention, the serrations on the two side walls of each of the grooves comprise a plurality of pyramids.

In an embodiment of the invention, the width of each of the grooves is gradually reduced from the bottom toward the opening.

In an embodiment of the invention, each of the annular washers described above is matched to the corresponding groove shape.

In an embodiment of the invention, each of the annular gaskets described above has a trapezoidal cross section.

In an embodiment of the invention, the bottom of each of the grooves has a buffer space formed by the inward retraction of the two side walls.

In an embodiment of the invention, the sidewall of the buffer space has an angle θ with the axis of the rotating shaft and 0° < θ < 90°.

In an embodiment of the invention, a pair of said rotating shafts are disposed in parallel with each other and a conveying path is provided between the two rotating shafts.

In an embodiment of the invention, a plurality of said rotating shafts are arranged in parallel on the same plane to jointly carry and transport an object.

Based on the above, in the roller conveying device of the present invention, since the groove side wall of the roller has a rough surface, the annular gasket is stably disposed in the groove. Whether the agent is immersed in an etching or cleaning process, or under prolonged use, the annular gasket can be fitted into the groove due to these rough surfaces and is not easily peeled off. Accordingly, the present invention increases the friction between the annular gasket and the groove of the roller to improve the reliability of the annular gasket and further increase the service life of the roller conveyor.

The above described features and advantages of the present invention will be more apparent from the following description.

1A is a top plan view of a roller conveyor in accordance with an embodiment of the present invention. Figure 1B is a side elevational view of the roller conveyor of Figure 1A. Referring to FIG. 1A and FIG. 1B simultaneously, the roller conveyor 100 includes a plurality of rotating shafts 110, a plurality of rollers 120, and a plurality of annular washers 130. In the present embodiment, any pair of rotating shafts 110 are arranged in parallel on the same plane, and a conveying path P is provided therebetween to collectively carry and convey the articles 200. In this embodiment, the roller conveyor device 100 is configured to transport a glass substrate to be applied to a related process of the liquid crystal panel, but the embodiment is not limited thereto. FIG. 1C is a roller conveyor device according to another embodiment of the present invention. Top view. Figure 1D is a side view of the roller conveyor of Figure 1C. Referring to FIG. 1C and FIG. 1D, unlike the above embodiment, the roller conveyor 300 of the present embodiment clamps the article 200 between the rollers 120 of the rotating shaft 110 for transmission. Accordingly, any object transported by a roller can be applied to the present invention.

Figure 2 is a partial cross-sectional view of the roller of the roller conveyor of Figures 1A through 1D. Since the roller 120 is symmetrically disposed along the rotating shaft 110, only a partial cross section of the roller 120 is shown here. Referring to FIG. 1A and FIG. 2 simultaneously, the roller 120 is sleeved on the rotating shaft 110. The outer circumferential surface of the roller 120 is provided with at least one groove 122, wherein the groove 122 has two opposite side walls S1, S2, and the two side walls S1, S2 have rough surfaces. Annular washers 130 are disposed within the grooves 122 of the rollers 120. Here, the present embodiment does not limit the number of the grooves 122 on the rotating shaft 110, the roller 120, and the roller 120. The designer can appropriately change the object 200 to be conveyed and related process conditions.

Based on the above, since the side walls S1, S2 in the groove 122 have a rough surface, the friction between the annular gasket 130 and the side walls S1, S2 of the groove 122 is increased, thereby allowing the annular gasket 130 to be firmly fitted The effect of the medicament in the groove 122 and the fearless process on the annular gasket 130 indirectly enhances the service life of the roller conveyor 100.

The present invention increases the friction between the annular gasket 130 and the groove 122 by the roughened surfaces of the side walls S1, S2, and the embodiment of the rough surface of the side wall of the groove 122 will be described below in various embodiments.

Referring to FIG. 2 again, in the embodiment, the surfaces of the two sidewalls S1 and S2 of the trench 122 have a plurality of saw teeth 124, and the serrations 124 protrude toward the bottom of the trench 122 to form a hook structure. The annular gasket 130 disposed within the groove 122 is engaged by the serrations 124 to increase the grasping force of the groove 122 against the annular gasket 130.

Figure 3 is a cross-sectional view of the roller of Figure 2 taken along line A-A. Here, in order to clearly understand the pattern of the sawtooth 124, it is drawn in the full section of the roller 120, and the following FIG. 4 and FIG. 5 are also drawn in the same manner. Referring to FIG. 3, in the present embodiment, the serrations 124 on the two side walls S1, S2 of the trench 122 are a spiral pattern surrounding the roller 120. However, this embodiment does not limit the appearance of these serrations 124. 4 and 5 are cross-sectional views showing a roller of another embodiment of the present invention, respectively. 4 and FIG. 5, in contrast to the above embodiment, in the embodiment of FIG. 4, the serrations 124 on the sidewalls S1, S2 of the trench 122 are a plurality of concentric patterns surrounding the roller 120. In the embodiment of Figure 5, the serrations 124 on the side walls S1, S2 of the groove 122 are a plurality of pyramids.

Here, the zigzag pattern in the embodiment of FIG. 3, FIG. 4 or FIG. 5 is intended to improve the friction between the annular gasket 130 and the groove 122, so that the annular gasket 130 can be made by a rough surface. The invention is firmly embedded in the groove 122 and is not easy to fall off. However, the present invention does not limit the structural appearance of the rough surface. Any increase in the friction between the annular gasket 130 and the groove 122 can be applied to the present invention. .

In addition, referring to FIG. 2, in order to further improve the ability of the annular gasket to fit into the groove, in the embodiment, the bottom of the groove 122 of the roller 120 may have a buffer formed by the inward retraction of the two side walls S1 and S2. The space 126 has a side wall of the buffer space 126 having an angle θ with the axis C of the rotating shaft 110, and 0° < θ < 90°. The purpose of this is to make the buffer space 126 larger than the space at the side walls S1, S2 of the trench 122. When the annular gasket 130 is expanded by the action of the chemical in the process, the buffer space 126 can serve as the annular gasket 130 for accommodating the expansion so that the annular gasket 130 does not fall out of the groove 122 due to volume expansion.

On the other hand, Fig. 6 is a schematic view showing the assembly of the roller and the annular gasket according to still another embodiment of the present invention. Referring to Figure 6, this embodiment is used to illustrate another way of making the annular gasket less likely to fall out of the groove. Here, the ability of the annular gasket to fit into the groove is enhanced by the groove mating with the cross-sectional shape of the annular gasket. For example, the groove 142 is designed such that its width is gradually reduced from the bottom toward the opening to form a pocket structure having a large internal space but a small opening, the cross section of which is, for example, a trapezoid. Similarly, the annular gasket 150 is also trapezoidal in conformity with the shape of the groove 142. In this way, the annular gasket 150 can be more stably disposed in the groove 142 by the annular gasket 150 matching the shape of the groove 142. However, the present invention does not limit the appearance of the annular gasket 150 and the groove 142. Any shape of the annular gasket and the groove cross-section that can achieve the objectives of the above embodiments can be applied to the present invention.

Further, in order to allow the trapezoidal annular gasket 150 to be smoothly disposed in the groove 142, in the present embodiment, the roller 140 is divided from the groove 142 into the first member 144 and the second member 146. In the assembly process, after the annular gasket 150 is disposed on the first member 144 or the second member 146, the first member 144 and the second member 146 are assembled by a fastener (not shown). The roller 140 of the embodiment and the annular gasket 150 disposed in the groove 142.

In summary, in the above embodiment of the invention, the groove increases the friction between it and the annular gasket by the rough surface on the side wall. Furthermore, the bottom of the trench has a buffer space formed by the side walls receding inwardly. This buffer space can be used as a receiving annular gasket when the annular gasket expands. Accordingly, the annular gasket is less likely to fall out of the groove of the roller and has better reliability in use, thereby enabling the roller conveyor to have a longer service life.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the invention, and any one of ordinary skill in the art can make some modifications and refinements without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims.

100, 300. . . Roller conveyor

110. . . Rotating shaft

120, 140. . . Wheel

122, 142. . . Trench

124. . . Sawtooth

126. . . Buffer space

130, 150. . . Ring washer

144. . . First member

146. . . Second member

200. . . object

A-A. . . Section line

C. . . Axis

P. . . Transfer path

S1, S2. . . Side wall

θ. . . Angle

1A is a top plan view of a roller conveyor in accordance with an embodiment of the present invention.

Figure 1B is a side elevational view of the roller conveyor of Figure 1A.

Fig. 1C is a plan view of a roller conveying device according to another embodiment of the present invention.

Figure 1D is a side view of the roller conveyor of Figure 1C.

Figure 2 is a partial cross-sectional view of the roller of the roller conveyor of Figures 1A through 1D.

Figure 3 is a cross-sectional view of the roller of Figure 2 taken along line A-A.

4 and 5 are cross-sectional views showing a roller of another embodiment of the present invention, respectively.

Fig. 6 is a schematic view showing the assembly of a roller and an annular gasket according to still another embodiment of the present invention.

120. . . Wheel

122. . . Trench

124. . . Sawtooth

126. . . Buffer space

130. . . Ring washer

A-A. . . Section line

C. . . Axis

S1, S2. . . Side wall

θ. . . Angle

Claims (13)

A roller conveying device comprises: at least one rotating shaft; a plurality of rollers disposed on the rotating shaft, each outer ring surface of the roller is provided with at least one groove, wherein each groove has two opposite side walls, The two side walls have a rough surface; and a plurality of annular washers are respectively disposed in the grooves of the rollers. The roller conveyor of claim 1, wherein the two side walls of each groove have a serrated surface. The roller conveyor of claim 2, wherein the serrations on the two side walls of each groove protrude toward the bottom of the groove. The roller conveyor of claim 2, wherein the serrations on the two side walls of each groove are a spiral pattern surrounding the roller. The roller conveyor of claim 2, wherein the serrations on the two side walls of each groove comprise a plurality of concentric circular patterns surrounding the roller. The roller conveyor of claim 2, wherein the serrations on the two side walls of each groove comprise a plurality of pyramids. The roller conveyor of claim 1, wherein the width of each of the grooves is gradually decreased from the bottom toward the opening. The roller conveyor of claim 1, wherein each annular gasket is matched to a corresponding groove shape. The roller conveyor of claim 1, wherein each annular gasket has a trapezoidal cross section. The roller conveyor of claim 1, wherein the bottom of each of the grooves has a buffer space formed by the inward retraction of the two side walls. The roller conveyor device of claim 10, wherein a side wall of the buffer space has an angle θ with an axis of the rotating shaft and 0° < θ < 90°. A roller conveying device according to claim 1, wherein a pair of said rotating shafts are disposed in parallel with each other and a conveying path is provided between the two rotating shafts. The roller conveying device of claim 1, wherein the plurality of rotating shafts are arranged in parallel on the same plane to jointly carry and convey an object.