KR101867981B1 - A roller used in conveying device - Google Patents

Abstract

The present invention relates to a transfer roller capable of being simply fixed on a shaft of a transferring apparatus. According to the present invention, the transfer roller used for a transferring apparatus comprises: a circular assembly type roller member having an insertion hole to insert a shaft therein, having a hollow formed therein, having a circular communication path to allow the hollow to communicate with the inside of the insertion hole, having an arced through-hole formed on one side surface to allow the hollow to communicate with the outside, and having an arced fixing part protruding close to the through-hole; a circular fixing member inserted into the hollow, having a first inner hole formed therein, and having a plurality of first through-holes formed along a side surface; a circular rotational member inserted into the hollow, having a second inner hole penetrating both side surfaces to be able to rotate, having an arced handle formed on one side surface to outwardly protrude through the through-hole, and having a plurality of second through-holes formed along a side surface; and a plurality of connection members having one side end axially coupled to the second through-hole and rotating a fastening member by rotation of the rotational member.

Description

Description of the Related Art [0002] A roller used in conveying device

The present invention relates to a transfer roller configured to be fixed to a shaft of a transfer device for transferring a substrate or the like. More particularly, the present invention relates to a transfer roller for transferring a substrate or the like by rotating a handle formed on a rotary member at a predetermined angle, A plurality of fastening members axially fastened to the other end of the connecting member are axially rotated and a plurality of fastening members that are axially rotated are configured to adjust the width of the insertion holes formed in the roller member, Roller.

In general, a conveying device having a plurality of shafts rotating axially is configured such that a plurality of conveying rollers are inserted and fixed at a predetermined interval in each of a plurality of shafts so that an object can be safely conveyed at a constant speed, It is widely used in various fields such as being used for transferring a flat substrate in a manufacturing process for manufacturing an apparatus.

Accordingly, the operator has to insert a plurality of transport rollers at predetermined intervals in each of the plurality of shafts, and then fix the transport rollers. However, in the conventional fixing system, the operation time is long, There was a problem that this became longer.

As an invention relating to a conveying roller for solving such a problem, there has been proposed an apparatus for conveying rollers disclosed in Korean Utility Model Publication No. 20-0382821 entitled " Fixing clip for conveying roller and bearing " and Korean Patent Application Publication No. 10-2007-0044088 "Korean Utility Model Publication No. 20-2011-0004377" Roller of a transfer device "and Korean Patent Laid-Open Publication No. 10-2016-0083507" Roller for substrate transfer "have been proposed and disclosed.

In the above-mentioned Korean Utility Model Publication No. 20-0382821, when the bearings or rollers are mounted on the shaft of the conveying device, the fixing clip is inserted at the correct position, so that it can be easily installed without additional equipment, In the "substrate transfer roller" of Korean Patent Laid-Open Publication No. 10-2007-0044088, there is proposed a device in which a substrate is separated from a roller A fastening base member which is inserted into the pneumatic axis and is fastened to the roller main body; and a pressing member which is pressed by the inner side of the roller main body or the fastening base member in accordance with the degree of engagement between the roller main body and the fastening base member, And a ferrule portion fixed to the pneumatic axis of the base plate. This makes it possible to improve the assembling property and the fastening force, The present invention has been proposed in which the substrate can be coupled to or released from the pneumatic axis by only this operation to reduce the working time remarkably, and the production cost is low.

In addition, the above-mentioned " roller of the conveying device " of Korean Utility Model Publication No. 20-2011-0004377 has a first nut which is in close contact with a part of the conveying shaft due to the inner diameter step and provides a space with the conveying shaft, 1 ferrule fitted into a space between a nut and a feed shaft and having an outer diameter inclined in one direction so as to have a difference in diameter at both ends, and a plurality of engaging projections And a second nut coupled to the other end of the roller body to which the roller member is coupled, the roller body having an inner diameter formed with an engaging groove engaging with the engaging projection of the roller body, The present invention provides a structure that can be firmly fitted to a conveying shaft without using a bolt, thereby preventing a breakdown of the equipment due to loosening of the bolt. And the " substrate transfer roller " of Korean Patent Laid-Open Publication No. 10-2016-0083507 mentioned above has a first roller portion and a second roller portion which are respectively coupled to the side of the conveyance shaft and an inner diameter contacted to the outer surface of the conveyance shaft, A contact ring disposed between the first roller portion and the second roller portion and contacting the bottom surface of the substrate when the substrate is transferred, There has been proposed an apparatus that includes a first fastening ring for fastening the first roller portion and a second roller portion, and a second fastening ring, and capable of replacing the roller without disassembling the substrate transfer shaft to which the roller is fastened.

Therefore, according to the present invention, by improving with reference to the above-mentioned conventional techniques, it is possible to insert the protection device into the shaft of the transfer device and securely fix it. However, when the device is replaced, the protective cover can be easily removed from the shaft, The present invention is directed to a conveying roller which is prevented from moving.

Korean Registered Utility Model No. 20-0382821 (2005. 04. 25) Korean Patent Publication No. 10-2007-0044088 (Apr. 27, 2007) Korea Public Utility Model Publication No. 20-2011-0004377 (2011.05.04) Korean Patent Laid-Open Publication No. 10-2016-0083507 (June 27, 2016)

The conveying roller used in the conveying apparatus according to the present invention is a technique improved with reference to the above conventional inventions,

It can be firmly fixed after being inserted into the shaft of the conveying device, but can be easily taken out from the shaft when it is replaced,

It is an object of the present invention to provide a transport roller in which a protective cover excellent in impact resistance and fluidity is mounted to prevent damage.

The conveying roller used in the conveying device according to the present invention, in order to realize the above object,

In the conveying roller used in the conveying device, an insertion hole through which the shaft is inserted through both sides is formed, a hollow is formed therein, and a communication path communicating the hollow and the inside of the insertion hole is formed in a circular shape A circular assembled roller member having arc-shaped through-holes for communicating the hollow and the outside on one side thereof, and arc-shaped fixing portions being formed adjacent to the through holes; A circular fixing member in which a first inner hole is formed to penetrate through both sides so as to be inserted into and fixed to the hollow, and a plurality of first through holes having the same interval are formed along the side; Wherein a second inner hole is formed to penetrate both sides of the hollow so as to be rotatable therethrough and an arcuate knob protruding outwardly through the through hole is formed on one side, A circular rotating member in which a plurality of second through holes are formed along the side surface; A plurality of fastening members, one side of which is shaft-engaged with the first through-hole to rotate axially and enter and exit the communication passage to adjust the width of the insertion hole; A plurality of connecting members, one end of which is axially fastened to the second through-hole, the other end of which is fastened to one side of the fastening member, and which rotates the fastening member by rotation of the rotating member; And a conveying roller for use in the conveying device.

The conveying roller used in the conveying device according to the present invention is configured such that the width of the insertion hole formed in the roller member is controlled by a plurality of fastening members that are rotated by a shaft when the handle formed on the rotating member is rotated at a predetermined angle, The shaft can be firmly fixed to the shaft. However, if necessary, the handle can be easily retracted from the shaft by repositioning the handle, and a protective cover having excellent impact resistance and fluidity is mounted to prevent the roller from being damaged.

1 is a perspective view showing a conventional conveying roller.
2 is an external perspective view showing a roller member of a conveying roller used in the conveying apparatus according to the present invention.
FIG. 3A and FIG. 3B are views showing a state in which a rotary member of a conveying roller used in a conveying apparatus according to the present invention rotates axially and rotates a connecting member and a tightening member.
FIGS. 4A and 4B are views showing a condition in which a fastening member of a conveying roller used in a conveying apparatus according to the present invention adjusts the width of an insertion hole. FIG.
FIG. 5 is an exemplary view showing a state in which a conveying roller used in a conveying apparatus according to the present invention is fixed to a shaft of a conveying apparatus. FIG.

The present invention relates to a transfer roller (100) configured to be fixed to a shaft of a transfer device for transferring a substrate or the like,

In the conveying roller 100 used in the conveying device, an insertion hole 111 through which the shaft is inserted through both side surfaces is formed, a hollow is formed therein, and the inside of the insertion hole 111 A through hole 113 for communicating the hollow and the outside is formed on one side of the through hole 113 and a through hole 113 is formed adjacent to the through hole 113, A circular assembled roller member 110 in which an arc-shaped fixing portion 114 is protruded; A circular fixing member 120 having a first inner hole 121 passing through both sides so as to be inserted into and fixed to the hollow and having a plurality of first through holes 122 having the same interval, ; A second inner hole 131 is formed to penetrate both sides of the hollow so as to be rotatable and an arc-shaped knob 132 protruding to the outside through the through hole 113 is formed on one side A circular rotating member (130) having a plurality of second through holes (133) formed along the side surface and having the same spacing from each other; A plurality of fastening members 140 one end of which is axially coupled to the first through hole 122 and which is axially rotated to enter and exit the passage to adjust the width of the insertion hole 111; And the other end is fixed to one side of the tightening member 140 so that the tightening member 140 is rotated by the rotation of the rotation member 130 A plurality of connecting members (150); And a conveying roller for use in the conveying device.

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

The conveying roller used in the conveying apparatus according to the present invention relates to a conveying roller used in the conveying apparatus.

FIG. 1 is a perspective view showing a conventional conveying roller. As shown in FIG. 1, when a roller is fixed to a shaft, a separate member is pressed and inserted between the roller and the shaft, The present invention solves the above problem, so that the roller can be firmly fixed after being inserted into the shaft. However, if necessary, the roller can be easily separated from the shaft And is provided with a protective cover excellent in impact resistance and fluidity to prevent the roller from being damaged.

2, the conveying roller used in the conveying apparatus according to the present invention is formed with an insertion hole 111 through which a shaft is inserted through both sides, a hollow is formed therein, And a communication passage 112 communicating with the inside of the insertion hole 111 is formed in a circular shape and an arc-shaped through hole 113 communicating the hollow and the outside is formed on one side, And a circular assembled roller member 110 having an arc-shaped fixing portion 114 protruded from the hole 113 adjacent to the hole 113. [

The roller member 110 is a component that is fixed to a shaft included in the transfer device and is rotated by the shaft rotation of the shaft and transfers an object such as a substrate. Such that the other components of the present invention, such as the fixing member 120, the rotating member 130, the tightening member 140, and the connecting member 150, can be installed.

The insertion hole 111 is a passage through which the shaft of the transfer device is inserted. The diameter of the insertion hole 111 is larger than the diameter of the shaft so that the shaft can be easily inserted. The communication hole has a fastening member 140 positioned in the hollow A through hole 113 is formed in the roller member 110 so that the handle 132 for rotating the rotating member 130 located in the hollow at a predetermined angle is inserted into the through hole 113, And the fixing part 114 is a component for preventing the rotation of the rotary member 130 by a method of being engaged with the handle 132 by a shaft or the like.

At this time, since the handle 132 is fixed to the fixing part 114 without being flowed, it is preferable that the fixing part 114 and the handle 132 are fastened with screws or bolts respectively The fixing part 114 may be formed with a fixing part that protrudes from one side and has fluidity and is bent to fix the fixing part 114 and the knob 132 at the same time.

3A and 3B, the conveying roller used in the conveying apparatus according to the present invention is formed with a first inner hole 121 passing through both sides so as to be inserted into and fixed to the hollow, And a circular fixing member 120 having a plurality of first through holes 122 formed along a side surface thereof.

The fixing member 120 is positioned inside the hollow and is fixed so as to restrict the change and rotation of the position so that the rotating member 130, the tightening member 140 and the connecting member 150, which will be described below, The first inner hole has a diameter larger than the diameter of the insertion hole. The first inner hole has a diameter larger than the diameter of the insertion hole. (121) is formed in the hollow.

The first through hole 122 is a through hole formed to connect the tightening member 140 to the fixing member 120 for adjusting the inner area of the insertion hole 111. The number of the tightening members 140 It is preferable that they are formed on the side surface of the fixing member 120 in the same number.

As shown in FIGS. 3A and 3B, the conveying roller used in the conveying apparatus according to the present invention is formed with a second inner hole 131 passing through both sides so as to be rotatable in the hollow, A plurality of second through holes 133 having the same spacing from each other are formed on one side and circular protrusions 132 are formed along the side surfaces of the first through holes 133, And a rotary member (130).

The rotation member 130 is positioned inside the hollow and can be pivoted at a predetermined angle so that the fastening member 140 is rotated to adjust the internal area of the insertion hole 111, The fixing member 120 is formed to have a diameter larger than the diameter of the fixing member 120 so that the fixing member 120 is inserted into the second inner hole 131, Lt; / RTI >

The handle 132 protrudes from the side surface of the rotary member 130 to rotate the rotary member 130 and protrudes to the outside through the through hole 113. The rotary member 130 Is not directly connected to the roller member 110 so as to be rotatable in the interior of the hollow and the shaft rotation angle of the rotary member 130 rotated by the handle 132 is restricted by the through hole 113 do.

The second through hole 133 is formed by the rotation of the rotating member 130 and is used to connect the connecting member 150 for rotating the fastening member 140 to the rotating member 130 And is formed on the side surface of the rotary member 130 in the same number as the number of the connection members 150. [

As shown in FIGS. 3A and 3B, the conveying roller used in the conveying apparatus according to the present invention has one side thereof shaft-engaged with the first through-hole 122 to rotate axially, And a plurality of fastening members 140 for adjusting the width of the insertion holes 111. [

The fastening member 140 is pivoted by a connecting member 150 which is pivoted by the rotation of the rotary member 130 so that the roller member 110 is inserted into the insertion hole 111 The entire or most of the body enters into the hollow interior of the roller member 110 or the entire body of the roller member 110 is rotated by the rotation angle of the rotary member 130 by the knob 132, Most of which reduces the width of the insertion hole 111 and tightens the shaft of the transfer device.

Therefore, the fastening member 140 may be formed in a rotary blade shape or the like so that a plurality of individual members can integrally form a circular shape, and each of the fastening members 140 is formed in an arc shape, A circular space may be formed at the central portion so that the shaft of the transfer device can be positioned and the diameter of the circular space is formed to be equal to or smaller than the diameter of the shaft so that the shaft can be fitted.

In this case, since the shaft of the transfer device is generally made of a metal material, if the fastening member 140 is also made of a metal material, the plurality of fastening members 140 may be integrally formed in a circular shape, The frictional force between the tightening member 140 and the shaft may not be strong enough to cause the roller member 110 to move from the fixed position when the diameter is the same as the diameter of the shaft, When the diameter of the central portion formed when the circular shape is formed is smaller than the diameter of the shaft, there arises a problem that the plurality of fastening members 140 can not be integrally formed into a circular shape due to the diameter of the shaft.

Accordingly, in order to solve the above-mentioned problems, the plurality of tightening members 140 may be made of an elastic material, such as acrylonitrile-butadiene-styrene (ABS) resin, styrene- acrylonitrile (SAN) (N, N'-ethylenebisoleamide), and ethylene bisstearamide (EBS). The resin composition according to the present invention comprises a base resin composed of polycarbonate (PC) and a resin composition comprising ethylenebisoleamide A plurality of projections having various shapes and sizes such as a circular shape, a linear shape, and an irregular shape are formed on one end surface of the tightening member 140 which is in direct contact with the shaft, So as to further improve the frictional force with the shaft.

3A and 3B, the conveying roller used in the conveying apparatus according to the present invention has one end thereof being axially coupled to the second through hole 133, and the other end being axially fastened to the fastening member 140, And a plurality of connecting members 150 which are axially fastened to one side of the fastening member 140 to rotate the fastening member 140 by rotation of the shaft of the rotating member 130.

Since the connecting member 150 moves along the rotating member 130 and rotates about its axis by pulling one side of the tightening member 140, the number of the connecting members 150 is the same as the number of the tightening members 140 A through hole should be formed at one end which is axially fastened to the second through hole 133 and at the other end which is axially fastened to one side of the fastening member 140. One end and the other end of the fastening member 140 are fixed at a predetermined angle As shown in Fig.

A shaft for passing through the through hole formed at one end of the second through hole 133 and the connecting member 150 so as to axially couple the rotating member 130 and the connecting member 150, And the shaft for fastening the fastening member 140 and the connecting member 150 to the axial rotation of the rotating member 130 are formed in the through hole formed at one side of the connecting member 150 and the through holes formed at the other end of the connecting member 150, The diameter of the connection member 150 and the fastening member 140 is adjusted so that the connection member 150 and the fastening member 140 can rotate smoothly and the connection between the rotation member 130 and the connection member 150, It is preferable that the diameter is formed so that no clearance is generated in the connection of the first and second plates.

4A and 4B, the conveying rollers used in the conveying apparatus according to the present invention are configured such that the tightening member 140 can adjust the width of the insertion hole 111, Accordingly, as shown in FIG. 5, the conveying roller 100 can be fixed to the shaft A of the conveying device.

The conveying roller 100 may further include a protective cover to which the roller member 110 is inserted. The protective cover may secure the impact resistance and the fluidity of the roller member 110, Styrene (ABS) resin, styrene-acrylonitrile (SAN) resin, polycarbonate (PC) resin, and the like. (N, N'-ethylenebisoleamide, EBO), and N, N'-ethylenebisstearamide (EBS).

The PC / ABS resin generally uses SAN resin in order to give compatibility between PC and ABS, but in the present invention, modified ABS resin obtained by reacting butadiene rubber polymer with ABS resin as a component constituting such PC / ABS resin and methyl A modified SAN resin in which methacrylate is copolymerized is used.

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If the grafting rate is too low, the particle size distribution becomes uneven in the course of solidification and drying. Therefore, there is a problem that the workability is poor when the composition is formed into a composition, and the graft ratio Is too high, physical properties such as impact strength and fluidity are deteriorated.

The modified ABS resin is preferably used in an amount of 20 to 50 parts by weight based on the entire composition to improve the impact resistance and fluidity of the protective cover itself. When the modified ABS resin is used in an amount of less than 20 parts by weight, If it exceeds the weight part, the flowability tends to decrease. Therefore, it is preferable to use it within the above range.

In addition, the SAN resin preferably uses a modified SAN resin obtained by copolymerizing methyl methacrylate (MMA). The SAN resin preferably has a weight average molecular weight of 100,000 to 140,000.

The copolymerization of methyl methacrylate improves the compatibility between PC and ABS since the acrylic group is bonded to the SAN resin. In particular, in the case of the rubber-polymerized ABS resin, the compatibility with the rubber polymer decreases, so the SAN resin modified with the acrylic group should be used Sufficient compatibility can be ensured.

When the amount of the modified SAN resin is less than 50 parts by weight, the flowability is decreased and the compatibility with PC is insufficient. When the amount of the modified SAN resin is more than 70 parts by weight, the impact resistance tends to decrease It is preferable to use it within the above range.

Further, PC is preferably used in an amount of 200 to 500 parts by weight based on the whole composition.

That is, when the PC content is too low, the impact resistance is lowered. If the PC content is too high, the workability is lowered and a problem occurs in the processing of the protective cover.

In the present invention, the basic resin is mixed with ethylene bisoleamide (EBO) and ethylene bis-stearamide (N, N'-ethylenebisstearamide

ide, EBS) is added.

The amide compound exhibits an effect of improving the fluidity of the resin composition and improving the impact absorbing ability of the protective cover.

Particularly, it was confirmed that EBO and EBS were particularly effective when used in combination with either EBO or EBS. When EBO and EBS were mixed at a weight ratio of 1: 0.5 to 0.5: 1, And it was found to obtain a good effect.

In other words, when EBO is mixed with EBS, if there are too few or one component, there is no difference in improvement of fluidity when EBO or EBS alone is used.

EBO has a melting point of 115 to 118 占 폚 and EBS has a melting point of 144 to 146 占 폚 so that the amide compound shows a melting point difference of about 20 to 30 占 폚.

Due to these differences, EBO having a good reaction rate is formed when the resin composition is formed, and EBS is reacted after the EBO first reacts with the base resin, so that it is distributed evenly in the composition of the amide compound to improve the physical properties in the molding process I guess.

In addition, EBO and EBS show the best effect when 1 to 5 parts by weight of the base resin is used with respect to 100 parts by weight of the base resin. However, when the content is too small or too large, the effect of improving fluidity can not be obtained.

In addition, the resin composition of the present invention may optionally contain an antioxidant, a lubricant, an impact modifier, a light stabilizer, an antistatic agent, an inorganic additive, a pigment, a dye and the like.

The protective cover may be produced by mixing the resin composition with an additive and performing injection molding.

The embodiments described above are provided by way of example for the purpose of enabling a person skilled in the art to sufficiently transfer the technical idea of the present invention to a person skilled in the art, But may be embodied in other forms without limitation.

In order to clearly explain the present invention, parts not related to the description are omitted from the drawings, and in the drawings, the width, length, thickness, etc. of the components may be exaggerated or reduced for convenience.

Further, like reference numerals designate like elements throughout the specification.

100: conveying roller 110: roller member
111: insertion hole 112:
113: through hole 114:
120: fixing member 121: first inner hole
122: first through hole 130: rotating member
131: second inner hole 132: handle
133: second through hole 140: tightening member
150: connecting member A: shaft

Claims (2)

In the conveying roller 100 used in the conveying device,
The conveying roller (100)
A hollow is formed in the inside of the insertion hole 111 for inserting the shaft through both sides thereof and a communication path 112 for communicating the hollow and the inside of the insertion hole 111 is formed in a circular shape, An arc-shaped through hole 113 for communicating the hollow and the outside is formed on one side and a circular shape in which an arc-shaped fixing portion 114 is protruded and formed adjacent to the through hole 113 Assembled roller member (110);
A first inner portion passing through both sides so as to be inserted into and fixed to the hollow A circular fixing member 120 in which a plurality of first through holes 122 having holes 121 and formed at equal intervals are formed along side surfaces;
A second inner hole 131 is formed to penetrate both sides of the hollow so as to be rotatable and an arc-shaped knob 132 protruding to the outside through the through hole 113 is formed on one side A circular rotating member (130) having a plurality of second through holes (133) formed along the side surface and having the same spacing from each other;
A plurality of tightening members 140 one end of which is axially coupled to the first through hole 122 and which is axially rotated to enter and exit the communication passage 112 to adjust the width of the insertion hole 111;
And the other end is fixed to one side of the tightening member 140 so that the tightening member 140 is rotated by the rotation of the rotation member 130 A plurality of connecting members (150); And a control unit,
The conveying roller (100)
And a protective cover (not shown) in which the roller member 110 is inserted.
The protective cover (not shown)
Acrylonitrile-butadiene-styrene (ABS) resin,
Styrene-acrylonitrile (SAN) resin,
(N, N'-ethylenebisoleamide, EBO), and a base resin made of polycarbonate (PC)
Characterized in that the resin composition is a resin composition comprising ethylene bisstearamide (EBS) and ethylene bisstearamide (EBS). delete

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