KR20170041475A - Feeding Roller Assembly and Feeding Apparatus using the Same - Google Patents

Abstract

Thereby providing a conveying roller assembly. A conveying roller assembly according to an embodiment of the present invention is a conveying roller assembly mounted on a rotary drive shaft and having at least two divided rollers coupled to each other so as to convey the conveyed object in one direction, And a joint block extending from the skeleton frame and exposed to protrude from at least one side of the molded body, wherein the joint of the skeleton frame and the skeleton frame is integrally formed with the skeleton frame, The at least two division rollers are coupled to the rotary drive shaft by a circular roller as the engagement blocks of the corresponding conveying rollers and the block are coupled to each other by the fastening means.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a conveying roller assembly,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a conveying roller assembly and a conveying device using the conveying roller assembly. More particularly, the present invention relates to a conveying roller and a conveying device using the conveying roller.

In general, a plate-like substrate such as a glass substrate is applied to various products and can be applied to flat panel display devices such as an LCD (Liquid Crystal Display) and an OLED (Organic Light Emitting Diode).

The substrate used in such a device is produced as a final product through various semiconductor manufacturing processes, and is transferred to a post-process by a conveying roller that is rotationally driven to perform each semiconductor manufacturing process.

That is, the conveying roller, on which the substrate is lifted to convey the substrate to be conveyed, to a post-process, is assembled at a predetermined interval to a rotary driving shaft driven to rotate by a driving source such as a driving motor, The substrate on which the outer circumferential surface and the lower surface of the substrate are in contact with each other is conveyed in one direction by a frictional force generated therebetween.

The outer periphery of the conveying roller is provided with a frictional force at the time of conveyance of the substrate to prevent slippage between the conveying object and the substrate and to smoothly convey the substrate while preventing damage to the surface of the substrate. Can be installed.

Meanwhile, the conveying roller is assembled at a predetermined interval to the rotary drive shaft by a coupling method in which the rotary drive shaft is inserted through a shaft hole formed in the center of the body.

Accordingly, any one of the plurality of conveying rollers is damaged or worn and replaced with a new conveying roller, the other normal conveying rollers adjacent to the conveying roller as a replacement object must also be separated from the rotary driving shaft, and after the conveying roller replacing operation It is necessary to reassemble to the original position of the rotary drive shaft. Therefore, the workload of the worker is increased and the work time required for replacing the conveying roller becomes longer, so that it takes much time and the work stoppage time becomes long.

Further, since the conveying rollers on the rough disc surface are accompanied by hole machining for forming the shaft hole at the center of the roller body and cutting machining for machining the outer surface of the roller body formed with the shaft hole into a disk shape, Resulting in an increase in manufacturing cost due to processing.

Further, in order to increase the frictional force with the object to be conveyed, there is a problem that the work is cumbersome and the workload of the worker is increased because the operation of additionally assembling and assembling a separately manufactured O-ring is carried out on the outer surface of the conveying roller.

(Patent Document 1) KR10-2007-0048044 A

(Patent Document 2) KR10-2013-0133551 A

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide an image forming apparatus, And to provide a conveying device using the conveying roller assembly and a conveying device using the conveying roller assembly.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not restrictive of the invention, unless further departing from the spirit and scope of the invention as defined by the appended claims. It will be possible.

According to one aspect of the present invention, there is provided a conveying roller assembly mounted on a rotary drive shaft and having at least two dividing rollers coupled to each other so as to convey the conveying object in one direction, A molding body formed to integrate the skeleton frame therein, and a joint block extending from the skeleton frame and exposed to protrude from at least one side of the molding body, wherein the skeleton frame has an inner groove formed on one side corresponding to the rotation drive shaft, And the at least two split rollers are coupled to the rotary drive shaft by a circular roller as the engagement block of the conveying roller and the corresponding engagement block of the other conveyance roller are coupled to each other by the fastening means.

In this case, the fastening means may include a coupling hole formed in the coupling block, and a coupling member passing through the coupling hole of the coupling block and coupled to the coupling hole of the other coupling block.

In this case, the skeleton frame includes a plurality of through-holes, and the plurality of through-holes may be formed to fill the formed body.

At this time, the skeleton frame may include a plurality of embedding grooves formed at one side or both sides of the body and recessed at a predetermined depth to embed the molded body.

At this time, the formed body may have an inner circumferential groove which is in contact with the rotary drive shaft on one side corresponding to the inner circumferential groove.

In this case, the inner circumferential grooves may include a plurality of rows of grooves formed to be continuously recessed along the inner circumferential direction.

At this time, a contact portion is formed on an outer edge of the molded body which is in contact with the conveying object, and the contact portion may include a toothed groove formed at an outer edge of the formed body with a predetermined pitch in the circumferential direction.

At this time, the contact portion may include a drain groove formed in the outer edge of the molded body in a circumferential direction.

In this case, the contact portion may include a drain groove recessed between a pair of right and left tooth grooves formed at an outer edge of the molded body at a predetermined pitch in a circumferential direction.

At this time, the coupling block may be provided as an integral block extending from the skeleton frame.

At this time, the coupling block may be provided as a coupling and coupling block that forms a fitting groove to be fitted into the skeleton frame.

At this time, the molded body may be coupled to the skeletal frame by injection molding.

In this case, the skeleton frame may be made of a metal material, and the molded body may be made of a resin material.

According to another aspect of the present invention, there is provided a conveyance apparatus for conveying a conveyed object placed on a conveying roller assembly, the conveying roller assembly being provided with a driving source for rotationally driving a rotary driving shaft having a plurality of conveying roller assemblies.

The present invention as described above has the following effects.

(1) A plurality of division rollers are arranged so that the inner circumferential groove is in contact with the rotary drive shaft, and then a circular conveying roller assembly is assembled by a fastening member fastened to the engagement hole of the engagement block facing each other, Assembly and replacement of damaged or worn conveyor roller assemblies can be performed more easily and quickly than single-piece conveyor rollers, thereby reducing the amount of time required for work, While the workload of the operator can be reduced.

(2) The produced skeleton frame is disposed in the mold, and the formed body is integrated by the insert injection molding process so as to be integrated with the skeleton frame, whereby the conveying roller assembly can be manufactured without the need of machining to cut through the shaft hole or to cut the outer surface Therefore, it is possible to reduce the overall weight by reducing the amount of material used by optimizing the design of the mold, and it is possible to reduce the cost of manufacturing the conveying roller, thereby enhancing the price competitiveness.

(3) Since the surface of the object to be conveyed can be reduced while the frictional force that is formed on the outer edge of the molded body and in contact with the object to be conveyed is increased, the work efficiency of transferring the object to the post- And it is possible to reduce the surface defects of the object to be conveyed, thereby enhancing the reliability.

FIG. 1 is an assembled state of a conveying roller assembly according to a preferred embodiment of the present invention assembled with a rotary drive shaft.
2 is an overall perspective view showing a conveying roller assembly according to a preferred embodiment of the present invention.
3 is an exploded perspective view showing a conveying roller assembly according to a preferred embodiment of the present invention.
4A and 4B are detailed views illustrating a skeleton frame employed in a conveying roller assembly according to a preferred embodiment of the present invention.
5A and 5B are cross-sectional perspective views illustrating a connection relationship between a skeleton frame, a molded body, and a coupling portion in a conveying roller assembly according to a preferred embodiment of the present invention.
6 is a perspective view showing another embodiment of a conveying roller assembly according to a preferred embodiment of the present invention.
7 is a schematic view showing a conveying apparatus using a conveying roller assembly according to a preferred embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, a detailed description of known functions and configurations incorporated herein will be omitted when it may obscure the subject matter of the present invention.

The same reference numerals are used for portions having similar functions and functions throughout the drawings.

In addition, in the entire specification, when a part is referred to as being 'connected' to another part, it may be referred to as 'indirectly connected' not only with 'directly connected' . Also, to include an element does not exclude other elements unless specifically stated otherwise, but may also include other elements.

1 to 4B, a conveying roller assembly 100 according to a preferred embodiment of the present invention is mounted on a rotation driving shaft of a driving source (not shown) at a predetermined interval to convey a plate- And includes a plurality of division rollers 110 and a coupling portion 130 to be conveyed in one direction.

The dividing roller 110 includes a skeletal frame 111 and a formed body 115. The skeletal frame 111 has an inner groove 112 in a substantially semicircular cross section on one side corresponding to the rotary drive shaft S And a frame structure of a concave metal material.

The skeletal frame 111 is fabricated in accordance with a predetermined design and shape by a die casting process or a sintering process using a metal such as iron or an alloy before molding the formed body 115, It is a structure.

The molded body 115 is formed to be embedded in the body and integrally formed with the body 115. The molded body 115 is fixed to one side of the skeletal frame 111 corresponding to the inner groove 112, The inner circumferential groove 116 is recessed so as to be in contact with the outer surface of the drive shaft S.

A contact portion 117 is formed at an outer edge of the formed body 115 that is in contact with the object to be conveyed to generate a frictional force in contact with the object.

Here, the molded body 115 may be a molded product that is insert injection-molded in a mold, not shown, made of a resin material such as rubber or engineer plastic so that the skeleton frame 111 is integrally embedded in the body.

The skeleton frame 111 is made of a metal material, and the formed body 115 is preferably made of a resin material.

Accordingly, the dividing roller 110, in which the skeleton frame 111 is embedded in the molded body 115, is integrated by the skeleton frame having a mechanical strength relatively higher than that of the molded body due to the material property of the material, And the coupling force with the rotary drive shaft S can be increased by the formed body 115 having an elastic force relatively higher than the elastic force of the skeletal frame 111. [

In addition, it is possible to prevent surface damage of a conveyed object contacting a molded body of a soft material, which is relatively soft compared with a skeleton frame 111 made of a rigid material, to increase the conveyance efficiency of the conveyed object while preventing slippage by increasing frictional resistance occurring therebetween .

5A, the skeleton frame 111 includes a plurality of through-holes 113a through which the molded body 115 is filled so as to increase the coupling force with the molded body 115 to be injection-molded. However, the present invention is not limited thereto. As shown in FIG. 5B, it is possible to have a plurality of embedding grooves 113b in which the molding body 115 is embedded by forming a recess at a predetermined depth on one side or both sides of the body, have.

A plurality of rows of grooves 116a are formed in the inner peripheral surface of the inner circumferential groove 116 in contact with the outer circumferential surface of the rotary drive shaft S so as to be continuously extended along the inner circumferential direction. When the plurality of split rollers 110 are assembled to the rotary drive shaft S by a plurality of split rollers 110 by a plurality of split rollers 110 and a rotary drive shaft S are assembled together by increasing the adhesion force with the outer peripheral surface of the rotary drive shaft, .

The contact portion 117, which is in contact with the conveying object, has a toothed groove 117a formed at an outer edge of the formed body 115 at a predetermined pitch in the circumferential direction.

The contact portion 117 contacting with the object to be conveyed conveys the liquid such as the cleaning liquid remaining on the object to be conveyed to prevent the slip phenomenon between the object to be conveyed by the liquid that is deposited on the contact portion 117, And a drain groove 117b that is formed in the outer edge of the base plate 117 in a circumferential direction.

At this time, the drain groove 117b may have a rectangular cross section, a semicircular cross section, or a V cross section so as to more smoothly collect and drain the liquid dropped during the conveyance of the conveyed object.

The drainage grooves 117b are formed by pairs of left and right outer edges of the formed body 115 so as to be smoothly discharged from the conveyed object or from the contact surfaces between the conveyed object and the toothed grooves 117a And is preferably provided between the tooth grooves.

The width of the tooth groove 117a and the width of the drain groove 117b and the width of the pair of left and right tooth grooves 117a are equal to each other But the present invention is not limited thereto and may be formed to have different pitches and different width sizes so as to generate frictional force of various sizes due to the kind of the object to be transported or the contact area with the object to be transported. .

The coupling part 130 includes a plurality of coupling blocks 131 extending from the skeletal frame 111 and exposed to protrude to both sides of the formed body 115 at a predetermined height. And at least one fastening hole 132 formed so that the fastening hole 133 can be fastened.

At least two split rollers 110 are formed on the rotary drive shaft S so that the inner circumferential groove 116 of the formed body is in contact with the inner circumferential groove 116 to be in close contact with the engagement hole 132 of the engagement block 131, The coupling member 133 can be assembled into a circular roller assembly by a coupling member 133 fastened through a coupling hole of the rotary shaft or can be separated from the rotary drive shaft by disassembly of the coupling member.

As shown in FIG. 5A, the coupling block 131 is formed as an integral block extending integrally from the skeleton frame 111 manufactured by die-casting or sintering. However, the coupling block 131 is not limited thereto, As shown in FIG. 3, the frame 111 may be formed as a separate and coupled block that forms a fitting groove to be fitted into the skeleton frame 111.

The coupling block 131 is provided so as to be close to a mating joint surface of a plurality of split rollers 110 assembled in the form of a round roller with the rotary drive shaft S as a center of the joint, It is possible to more smoothly perform the operation of fastening the fastening member through the coupling hole of the coupling block facing each other when assembling the plurality of divided rollers together.

The coupling hole 132 is formed through the coupling block and machined by a female screw so as to be fastened and coupled with a fastening member such as a screw head bolt. However, the fastening member is not limited thereto and may be a fastening member such as a stud bolt And may be provided in the form of a through hole into which the nut is inserted.

It will be easily understood by those skilled in the art that adjacent joint blocks in this embodiment can be joined by various fastening means not shown.

2, the two conveying roller assemblies 100 having the above-described structure may be configured such that two split rollers 110 are arranged on the rotary drive shaft S by 180 degrees so as to be assembled together by the engaging portion 130 However, the present invention is not limited to this. As shown in FIG. 6, the conveying roller assembly 100a can be assembled by the coupling part 130 by arranging three division rollers 110 at 120 ° to the rotation drive shaft have.

7, the conveying roller assembly 100 includes a plurality of division rollers 110 assembled to a plurality of rotary driving shafts S, And a conveying device 200 for disposing a driving source such as a motor member for rotating the rotary drive shaft inside the sieve frame so that a conveyed object such as a substrate placed on the conveying roller assembly is moved in one direction to be conveyed to a post process You can.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventions. It will be apparent to those of ordinary skill in the art.

110: split roller
111: skeletal frame
112: inner groove
113a: Through hole
113a: buried groove
115: molded article
116: inner circumference groove
117:
117a: serration groove
117b: drainage groove
130:
131: Coupling block
132: coupling ball
133: fastening member

Claims (14)

A conveying roller assembly mounted on a rotary drive shaft and having at least two dividing rollers coupled to each other so as to convey the conveying object in one direction,
The split roller
A skeleton frame having an inner groove formed on one side corresponding to the rotary drive shaft,
A molded body that is molded to integrate the skeletal frame therein
And a joint block extending from the skeleton frame and exposed to protrude from at least one side of the molded body,
Wherein the at least two division rollers are coupled to the rotary drive shaft as circular rollers as the engagement blocks of the conveying rollers and the corresponding engagement blocks of the other conveyance rollers are coupled to each other by the fastening means. The method according to claim 1,
The fastening means
A coupling hole formed in the coupling block and
And a fastening member passing through the fastening hole of the fastening block and coupled to the fastening hole of another fastening block. The method according to claim 1,
Wherein the skeleton frame has a plurality of through-holes, and the plurality of through-holes are formed to fill the formed body. The method according to claim 1,
Wherein the skeleton frame includes a plurality of embedding grooves formed at one side or both sides of the body to be recessed at a predetermined depth to embed the molded body. The method according to claim 1,
Wherein the molded body has an inner circumferential groove formed on one side thereof corresponding to the inner groove, the inner circumferential groove being in contact with the rotating drive shaft. The method according to claim 1,
Wherein the inner circumferential groove comprises a plurality of rows of grooves which are formed so as to extend continuously along the inner circumferential direction. The method according to claim 1,
Wherein the forming body has a contact portion formed on an outer edge thereof that is in contact with the conveying object, and the contact portion includes a toothed groove formed at an outer edge of the formed body at a predetermined pitch in the circumferential direction. The method according to claim 1,
Wherein the contact portion has a drain groove recessed circumferentially at an outer edge of the molded body. The method according to claim 1,
Wherein the contact portion includes a drain groove recessed between a pair of right and left tooth grooves formed at an outer edge of the molded body at a predetermined pitch in the circumferential direction. The method according to claim 1,
And the coupling block is provided as an integral block extending from the skeletal frame. The method according to claim 1,
Wherein the coupling block is provided as a separate and coupled block that forms a fitting groove to be fitted into the skeleton frame. The method according to claim 1,
Wherein the molded body is coupled to the skeleton frame by injection molding. 13. The method according to any one of claims 1 to 12,
Wherein the skeleton frame is made of a metal material, and the molded body is made of a resin material. A conveying device for conveying a conveyed object placed on a conveying roller assembly by having a driving source for rotationally driving a rotating driving shaft having a plurality of conveying roller assemblies according to any one of claims 1 to 12.

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