KR101537711B1 - Roller for conveyor and manufacturing method thereof - Google Patents

Roller for conveyor and manufacturing method thereof Download PDF

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Publication number
KR101537711B1
KR101537711B1 KR1020140004098A KR20140004098A KR101537711B1 KR 101537711 B1 KR101537711 B1 KR 101537711B1 KR 1020140004098 A KR1020140004098 A KR 1020140004098A KR 20140004098 A KR20140004098 A KR 20140004098A KR 101537711 B1 KR101537711 B1 KR 101537711B1
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KR
South Korea
Prior art keywords
end cap
roller
shaft
roller tube
tube body
Prior art date
Application number
KR1020140004098A
Other languages
Korean (ko)
Inventor
나동원
Original Assignee
대양롤랜트 주식회사
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Priority to KR1020140004098A priority Critical patent/KR101537711B1/en
Application granted granted Critical
Publication of KR101537711B1 publication Critical patent/KR101537711B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/02—Making machine elements balls, rolls, or rollers, e.g. for bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G13/00—Roller-ways
    • B65G13/02—Roller-ways having driven rollers
    • B65G13/06—Roller driving means
    • B65G13/073—Roller driving means comprising free-wheel gearing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G39/00—Rollers, e.g. drive rollers, or arrangements thereof incorporated in roller-ways or other types of mechanical conveyors 
    • B65G39/02—Adaptations of individual rollers and supports therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G39/00—Rollers, e.g. drive rollers, or arrangements thereof incorporated in roller-ways or other types of mechanical conveyors 
    • B65G39/02—Adaptations of individual rollers and supports therefor
    • B65G39/09—Arrangements of bearing or sealing means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
    • F16C13/02—Bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2207/00—Indexing codes relating to constructional details, configuration and additional features of a handling device, e.g. Conveyors
    • B65G2207/22—Heat or fire protection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2207/00—Indexing codes relating to constructional details, configuration and additional features of a handling device, e.g. Conveyors
    • B65G2207/40—Safety features of loads, equipment or persons

Abstract

The present invention relates to a roller for a conveyor and a method for manufacturing the same. The roller for a conveyor comprises: a shaft; a bearing positioned on axial both sides of the shaft since the shaft is inserted therein; an end cap positioned on axial both sides of the shaft; and a roller pipe coupled to a radial outside of the end cap. A concave portion formed to be concave on the radial outside of the end cap, and both ends of the roller pipe are pressurized inward in an axial direction by a mold after an end cap assembly is positioned in an end cap groove unit of the mold in order to enable a curling unit positioned in the concave portion to be formed in both ends of the roller pipe to enable the roller pipe to be coupled to the end cap.

Description

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

The present invention relates to a roller for a conveyor, and more particularly, to a roller for a conveyor which can be manufactured by reducing the number of parts of a roller end cap assembled to a shaft and omitting a welding operation required when a conventional end cap assembly and a roller tube body are combined Roller and a method of manufacturing the same.

A conveyor roller conveyor apparatus is used to easily convey a material to be conveyed in a general industrial field, and a plurality of rollers are installed in the roller conveyor apparatus. 1 is a cross-sectional view showing a structure of a roller 1 for a conveyor of the prior art. 2 is an enlarged cross-sectional view of one end of a roller for a conveyor.

1 and 2, a structure of a conventional conveyor roller 1 includes a shaft 10, a housing member 20, a cover 30, an end cap 40, a roller tube 50 , And a bearing (60). The shaft 10 is provided with two stopper rings 11 spaced apart from each other in the axial direction to prevent the shaft 10 from being excessively inserted into the bearing 60. The bearing 60 is closely inserted to the axial outer side of the stopper ring 11 and positioned on both sides in the axial direction of the shaft 10. The housing member 20 has a reinforcing member 22 on its inner surface. The housing member 20 is positioned on both sides in the axial direction of the shaft 10 by closely inserting the bearing 60 inwardly in the axial direction. The cover (30) has an indented protrusion for engaging with the housing member (20) axially inward. The cover 30 is engaged with the housing member 20 and positioned on both sides of the shaft 10 in the axial direction. The projections and protrusions of the cover 30 are engaged with protrusions protruding axially outwardly of the housing member 20 to form labyrinth seal parts in the form of a labyrinth so that dust and foreign substances from the outside can flow into the roller 60 and the bearings 60, . Both end portions of the end cap 40 are bent inward in the axial direction and have an upper portion 41 and a lower portion 43. The end cap (40) is positioned on both sides in the axial direction of the shaft (10) with the housing member (20) closely inserted into the inside. The lower portion 43 of the end cap 40 is brought into contact with the outer diameter surface of the housing member 20 and the end portion 43a is engaged with the housing jaw portion 21 to be engaged. The roller tube 50 has bending portions 51 that are bent inward at both ends in the axial direction. The end cap 40 is inserted into both sides of the roller tube 50 and the bent portion 51 of the roller tube 50 and the upper portion 41 of the end cap 40 are in contact with each other. Finally, the bending portion 51 and the upper portion 41 are brought into contact with each other and welded to the welded portion 70 formed on the axially outward side, and the roller tube body 50 and the end cap 40 are coupled to complete the assembly of the roller.

The assembled roller is rotated such that the inner ring 60a of the bearing 60 is fixed to the shaft 10 and the outer ring 60b engaged with the housing member 20 is driven.

However, in the conventional conveyor roller, the number of parts is increased by assembling the housing member 20 made of plastic or synthetic resin between the end cap 40 and the bearing 60 to compensate for the misalignment occurring in the roller assembly Since the metal end cap 40 is provided for coupling with the roller tube 50 and the weight of the end cap 40 is increased as well as the welding operation is required when the roller tube 50 and the end cap 40 are finally joined to each other, The manufacturing time is increased and the parts of the coupling part are distorted or deformed due to the high heat generated in the welding operation, thereby causing a problem that the precision of the roller is lowered.

Korean Pub. No. 10-2008-0074516

Disclosure of Invention Technical Problem [8] The present invention has been made to overcome the disadvantages of the conventional conveyor roller and the manufacturing method thereof, and it is an object of the present invention to reduce the number of parts and their weight by integrating the structure of the end cap assembled to the roller shaft, And thus it is possible to omit the conventional welding operation, thereby reducing the manufacturing time and cost as well as preventing the distortion and deformation of parts during the production of the rollers, thereby ensuring the accuracy of the rollers. And a method for producing the same.

According to another aspect of the present invention, there is provided a roller for a conveyor and a method of manufacturing the same, including a shaft, a bearing inserted into the shaft and positioned on both sides in the axial direction of the shaft, And a roller tube coupled radially outwardly of the end cap; The end cap has a recessed portion formed on a radially outer side thereof. A curling portion is formed on the end portion of the roller tube by curling inward in a radial direction. The curled portion is located on the recessed portion, The roller for a conveyor according to claim 1,

In the above, the concave portion is curved inward in the radial direction on the outer surface of the end cap.

Wherein the concave portion is formed in an arc shape on the outer surface of the end cap and the curling portion is formed in a circular arc shape convex inward in the radial direction while a part of the end portion is curled inward in the axial direction. to provide.

The curled portions are formed on both sides in the radial direction on the radially innermost portion of the concave portion, extending radially outward on both sides in the axial direction, and the curled portions extend radially outward on both sides in the axial direction on the radially innermost portion Thereby providing a roller for a conveyor.

The end cap assembly having the shaft inserted into the bearing and the end cap inserted into the outer side of the bearing is positioned inside the shaft and the end cap assembly is inserted into the end cap groove portion of the mold The roller tube body is coupled to the end cap while curling portions located in the concave portions are formed at both ends of the roller tube body by pressing both ends of the roller tube body inwardly in the axial direction by the metal mold. do.

The method of manufacturing the conveyor roller is characterized in that it is coupled to the end cap by pressing the roller tube disposed in a fixed position and concentrically with the end cap assembly at one end of the shaft in the direction of the metal to curl one end of the roller tube body And a method of manufacturing a roller for a conveyor.

Wherein a concave portion and a tubular end portion of the end cap disposed concentrically with the roller tube body are contacted with each other during the curling process so that the end cap is axially inwardly lifted and can be engaged with the roller tube body. And a manufacturing method thereof.

In the above, the metal mold has an inclined portion, which is a portion where the body and the tube end portion of the roller tube body are in contact with each other and in which curling starts, a curved portion that is curved and extended from the end portion of the inclined portion, An end cap groove portion formed axially outward from the end portion and a shaft groove portion formed axially outwardly from the end portion of the end cap portion.

The present invention can reduce the number of parts of the rollers and the weight of the rollers and ensure the smoothness of rotation of the rollers by integrating the structure of the end cap assembled to the roller shaft, By joining the tubular body to the end cap, the manufacturing process of the rollers is simplified, and the time and cost required for the production of the rollers can be reduced. In addition, since the roller is not deformed or deformed due to high heat during the manufacture of the rollers, Can be secured.

1 is a cross-sectional view showing a roller for a conveyor according to the prior art.
2 is an enlarged cross-sectional view of one end of a conveyor roller according to the prior art.
3 is a cross-sectional view showing a roller for a conveyor according to the present invention.
4 is an exploded cross-sectional view of one end of the roller for a conveyor according to the present invention.
5 is a cross-sectional view showing a mold used in a curling process of a roller for conveyor according to the present invention.
6 is a cross-sectional view illustrating a process of curling one end of a roller tube body by a mold according to a method of manufacturing a roller for a conveyor of the present invention.
7 is a cross-sectional view illustrating a process of curling one end of a roller tube body by a mold according to a modification of the method for manufacturing a roller for a conveyor of the present invention.
8 is a partial cross-sectional view showing a modified example of the roller for a conveyor according to the present invention.

Hereinafter, a roller for a conveyor according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 3 is a cross-sectional view showing a roller for a conveyor according to the present invention, FIG. 4 is a cross-sectional view of one end of a roller for conveyor shown in FIG. 3, and FIG. 5 is a cross- 6 is a cross-sectional view showing a process in which one end of a roller tube body is curled by a mold according to the method for manufacturing a roller for a conveyor of the present invention, and Fig. 7 is a cross- Sectional view showing a process in which one end of the roller tube is curled by a mold according to a modified example of FIG.

In the following description, the lateral direction of FIG. 3 is referred to as "axial direction", the longitudinal direction is referred to as "radial direction", and the direction away from the axial center is referred to as " do.

3 and 4, the roller 100 for a conveyor according to the present invention includes a shaft 110, a bearing 120, an end cap 130, and a roller tube body 160. The shaft 110 has a circular cross section and becomes a central axis for rotating the roller.

The bearing 120 is inserted into the shaft 110 and positioned on both sides of the shaft 110 in the axial direction.

The end cap 130 is a hollow tube into which the shaft 110 is inserted. A bearing groove 133 into which the bearing 120 is inserted is formed inside the end cap 130 in the axial direction. The bearing groove 133 extends in the circumferential direction and has a length in the axial direction. And a jaw portion 135 is provided axially outwardly of the bearing groove portion 133. The jaw portion 135 is formed inward in the axial direction and convex inward in the radial direction. A seal groove portion 137 into which the seal 140 is inserted is formed radially outward of the jaw portion 135. The seal groove portion 137 is formed to extend in the circumferential direction. A protruding portion 137a is formed at a radially outer end of the seal groove 137 to which the seal jaw portion 143 of the seal 140 is engaged. The protrusion 137a protrudes outward in the axial direction from the seal groove 137. And the cover groove portion 139 is formed radially outwardly away from the protruding portion 137a. The cover groove portion 139 extends in the circumferential direction and is formed concavely inward in the axial direction.

The bearing 120 is inserted into the bearing groove 133 of the end cap 130 so that the axially outer surface of the bearing 120 is in close contact with the jaw 135. The end cap 130 is positioned on both sides of the shaft 110 in the axial direction by inserting the shaft 110. The seal 140 is inserted into the seal groove 137 of the end cap 130 and the axial inner surface of the seal 140 is brought into close contact with the axial outer surface of the jaw 135, And the seal jaw portion 143 is engaged with the stopper portion 137a.

The seal 140 is in a reduced form into which the shaft 110 can be inserted. The seal 140 has a protrusion groove 147 formed on an axially inner side surface thereof to be engageable with the cover 150. The protrusion groove portion 147 is formed to extend in the circumferential direction. A plurality of seal protrusions 141 are formed on the axially outer side surface of the seal 140 to form a seal portion. The seal protrusions 141 protrude outwardly in the axial direction of the seal and are provided in plural. A seal lip 143 is formed on the outer side of the seal 140 in a radial direction. The seal lip 143 is engaged with the protrusion 137a of the end cap 130. The seal jaw 145 is formed to extend in the circumferential direction. The seal 140 may be integrated with the end cap 130, unlike the present embodiment.

The cover 150 is in a reduced form into which the shaft 110 can be inserted. The cover 150 is coupled axially outwardly of the seal 140. An uneven protrusion 151, which is engaged with the seal protrusion 141 of the seal 140 and forms a seal part, protrudes inward in the axial direction on the inner side of the cover 150 in the axial direction. The protrusions and protrusions 151 are engaged with the grooves 145 formed between the plurality of seal protrusions 141 when the cover 150 is coupled with the seal 140. A labyrinth seal portion is formed between the seal protrusion 141 and the protrusion protrusion 151 to prevent dust or foreign matter from penetrating into the inside of the roller and the bearing 120 from the outside .

When the assembly process is completed, the roller assembly is completed by joining the completed end cap assembly 130 and the roller tube body 160. The coupling between the end cap 130 and the roller tube body 160 is achieved by coupling the concave portion 131 of the end cap 130 and the curling portion 161 of the roller tube body 160.

The concave portion 131 is concave on the outer surface of the end cap 130. The concave portion 131 is curved inward radially inward from the outer surface of the end cap 130. The concave portion 131 extends in the radially outward direction on both sides in the axial direction about the radially innermost portion of the concave portion 131.

Curled portions 161 formed by curling are provided at both ends of the roller tube body 160. The curling portion 161 is curved inwardly in a part of the end portion of the roller tube body 160 to form a radially inward convex circular arc. The curling portion 161 is convexly extended in the axial direction on both sides in the radial direction and radially outward around the radially inner lowest point of the roller tube body 160.

The roller tube 160 is coupled to the end cap 130 by locating a curling portion 161 formed by curling both ends of the roller tube 160 with the concave portion 131 of the end cap 130.

When the above-described end cap assembly and the roller tube body 160 are coupled, a series of roller assemblies for a conveyor are completed.

In the roller assembly as described above, the mold 170 is used for the curling process of curling the roller tube body 160.

8 is a partial cross-sectional view showing a modified example of the roller for a conveyor according to the present invention, and the jaw portion 135 may be formed in the end cap 130 outwardly in the axial direction. The bearing groove portion 133 is formed axially outward of the jaw portion 135. The bearing 120 inserted into the bearing groove 133 is brought into contact with the jaw 135 in the axial direction. The bearings 120 are installed in the end cap 130 so that the seals 140 and the cover 150 are positioned axially outward of the bearings 120.

In the following description, the transverse direction in Fig. 5 is referred to as "axial direction", the longitudinal direction is referred to as "radial direction", and the direction away from the central portion in the axial direction is referred to as " do.

5, the mold 170 used for curling the roller tube body 160 includes a body 171, an inclined portion 173, a curved portion 175, an end cap groove portion 176, And a shaft groove portion 179. The body 171 is a hollow tube having a space therein so that the end cap 130 and the roller tube body 160 can be inserted. An inclined portion 173 is formed inside the axially inner end of the body 171. The inclined portion 173 is formed to extend outwardly from the axially inner side. The inclined portion 173 is formed to be inclined radially inwardly as it extends outward in the axial direction. When the roller body 160 is pressed by the mold 170, the tube end 161a of the roller tube body 160 comes into contact with the inclined portion 173 and the curling operation is started. The curved portion 175 is formed concavely extending from the end of the inclined portion 173. The axial length from the radial center of the curved portion 175 to the end of the curved portion 175 is shorter than the length to the axially outermost portion of the curved portion 175. [ The axial position of the end of the curved portion 175 is located axially outward of the radius center of the curved portion 175. [ The end cap groove 176 extends in the circumferential direction at the end of the curved portion 175. The end cap 130 is inserted into the end cap groove 176 for curling. At this time, it is preferable that the end shafts 130 are inserted so as to be concentric with the roller tube body 160. The end cap jaw 177 is formed at the axially outer end of the end cap groove 176. The end cap jaw 177 extends radially inwardly and is convexly formed. When the end cap 130 is inserted into the end cap groove 176, the axial outer side surface of the end cap 130 is tightly fixed to the end cap jaw 177. The shaft groove portion 179 is formed at the end of the end cap jaw portion 177. [ The shaft groove portion 179 is formed to extend in the circumferential direction so that the shaft 110 can be inserted in the curling process.

6, the bearing 120 is moved inward in the axial direction as shown in FIG. 6, and the roller 120 is rotated in the axial direction, as shown in FIG. 6, during the manufacturing process of the roller for a conveyor according to the present invention, The end cap 130 assembly inserted with the seal 140 and the cover 150 axially outwardly is inserted into the end cap groove portion 176 of the mold 170 so as to be concentric with the roller tube body 160, . When the end cap 130 is inserted into the mold 170, the axially outer end of the concave portion 131 is axially or more outwardly positioned with respect to the end of the curved portion 175 of the mold 170. Then, both ends of the roller tube body 160 are curled by pressing the metal mold 170 located at both ends of the shaft 110 inward in the axial direction. The tube end portion 161a of the roller tube body 160 is brought into contact with the inclined portion 173 of the mold 170 and the pressing of the mold 170 is continued when the mold 170 is pressed inward in the axial direction, Both ends of the roller tube 160 refracted along the curved portion 173 are guided to the curved portion 175 and curled inward in the axial direction and the curled portion 161 starts to be formed. When the curling part 161 is formed, the axially inner end of the curling part 161 is positioned in contact with the inner end of the concave part 131, and the axially outer end of the curling part 161 is positioned on the axis of the concave part 131 Directional outer end. The end portion 161a of the curling portion 161 further extends axially inward from the radially innermost side of the concave portion 131. [ The curling part 161 is formed to be positioned in the recess 131 so that the roller tube 160 is coupled with the end cap 130 assembly to complete the roller assembly.

As shown in FIG. 7, a modification of the method for manufacturing a roller for a conveyor according to the present invention will be described. The manufacturing process of the roller for a conveyor is different from the manufacturing method shown in FIG. The end cap 130 to be assembled can be deformed so that the bearing 120, the seal 140, the cover 150 and the like can be post-assembled after the roller tube 160 and pre-assembly.

The first step of the manufacturing process variant is to position the end cap 130 in the end cap recess 176 of the mold 170. When the end cap 130 is inserted into the mold 170, the axially outer end of the concave portion 131 is axially or more outwardly positioned with respect to the end of the curved portion 175 of the mold 170. The roller tube 160 positioned to be concentric with the end cap 130 located inside the mold 170 is clamped and pressed toward the mold. The pressurized roller tube body 160 contacts the inclined portion 173 according to the shape of the mold 170, is refracted and then guided to the curved portion 175 to be bent into an arc shape and curled inward in the axial direction. When the curling part 161 is formed, the axially inner end of the curling part 161 is positioned in contact with the inner end of the concave part 131, and the axially outer end of the curling part 161 is positioned on the axis of the concave part 131 Directional outer end. The end portion 161a of the curling portion 161 further extends axially inward from the radially innermost side of the concave portion 131. [ The roller tube 160 having both ends curled to form the curling portion 161 is engaged with the concave portion 131 of the end cap 130. When the both ends of the roller tube body 160 are curled by the mold 170 in the curling process, the tube end 161a is brought into contact with the concave portion 131 of the end cap 130 so that the end cap 130 is axially And can be coupled to the inner side. The bearings 120, the seals 140, the covers 150 and the like may be assembled in various orders according to the structure of the end cap 130 in the axial direction of the end cap 130 coupled with the roller tube body 160 . Once the end cap 130 assembly is completed, a series of modified roller manufacturing processes for the conveyor are completed.

Although the roller for a conveyor according to the present invention and the method of manufacturing the same according to the present invention have been described with reference to the embodiments shown in the drawings, the present invention is merely illustrative and any person skilled in the art can make various modifications and equivalent other embodiments . Accordingly, the scope of the true technical protection should be determined by the technical idea of the appended claims.

100: Roller for conveyor
110: shaft 120: bearing
130: End cap 131:
133: bearing groove portion 135: jaw portion
137: seal groove portion 137a:
139: Cover groove part 140: Seal
141: seal protrusion 143: seal jaw
145: groove portion 147: projection groove portion
150: cover 151: protrusion protrusion
160: roller tube body 161: curling portion
161a: tube end 170: mold
171: Body 173:
175: bend 176: end cap groove
177: end cap jaw 179: shaft groove portion

Claims (9)

A shaft 110 and a bearing 120 inserted into the shaft 110 at both sides in the axial direction of the shaft 110; an end cap 130 positioned on both sides of the shaft 110 in the axial direction; And a roller tube (160) coupled radially outwardly of the end cap (130); A concave portion 131 is formed on the outer side of the end cap 130 in the radial direction and a curling portion 161 is formed in the end portion of the roller tube body 160 by being curled inward radially inwardly, Characterized in that a curling portion (161) is positioned in the part (131) and the roller tube body (161) is coupled to the end cap (130). The roller (100) for a conveyor according to claim 1, wherein the concave portion (131) is curved radially inwardly on an outer surface of the end cap (130). The end cap according to claim 2, wherein the concave part (131) is formed in an arc shape on an outer surface of the end cap (130), and the curling part (161) is curled inward in the axial direction And is formed in a convex circular arc shape. The curled elastic member according to claim 1, wherein the curled portion (161) extends in both axial directions about the radially innermost portion of the concave portion (131), and the curled portion (161) (100). ≪ / RTI > The method of manufacturing a conveyor roller according to any one of claims 1 to 4, wherein the shaft (110) is inserted into a bearing (120) and the end cap (130) is inserted and coupled to the outside of the bearing The end cap assembly is positioned inside the shaft 110 and the end cap 130 assembly is positioned in the end cap groove portion 176 of the mold 170. Both ends of the roller tube body 160 are then fixed by the mold 170 Wherein the roller tube body (160) is coupled to the end cap (130) while curling portions located in the concave portion (131) are formed at both ends of the roller tube body (160) by being pressed inward in the axial direction. The method of manufacturing a conveyor roller according to any one of claims 1 to 4, wherein the roller body (160) is fixedly positioned with the mold (170) and is positioned concentrically with the end cap (130) And is coupled to the end cap (130) by pressing one end of the roller tube body (160) by pressing in the direction of the mold (170). The end cap (130) according to claim 6, wherein the concave part (131) and the tubular body part (161a) of the end cap (130) concentric with the roller tube body (160) Is axially inwardly lifted and engages with the roller tube body (160). The method according to claim 5, wherein the metal mold (170) comprises an inclined portion (173) which is a portion where the body (171) and the tube end portion (161a) of the roller tube body (160) An end cap groove portion 176 formed axially outward from an end of the curved portion 175 in the radial direction of the curved portion 175 and an end cap groove portion 176 formed axially outward from the end of the curved portion 175, And a shaft groove portion (179) formed so as to extend axially outward from an end portion of the shaft groove portion (176). The method according to claim 6, wherein the metal mold (170) comprises an inclined portion (173) in which the body (171) and the tube end (161a) of the roller tube body (160) An end cap groove portion 176 formed axially outward from an end of the curved portion 174 in the radial direction of the curved portion 174; And a shaft groove portion (179) formed so as to extend axially outward from an end portion of the shaft groove portion (176).
KR1020140004098A 2014-01-13 2014-01-13 Roller for conveyor and manufacturing method thereof KR101537711B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102628866B1 (en) 2023-07-12 2024-01-24 주식회사 디에스원 Method for manufacturing Conveyor
KR102631070B1 (en) 2022-12-08 2024-01-29 박근창 Rotary roller device and the munafacturing method thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100527815B1 (en) * 2003-12-31 2005-11-15 대양롤랜트 주식회사 Carrier Roller for Conveyer
KR101174565B1 (en) * 2010-05-04 2012-08-16 대양롤랜트 주식회사 Roller for conveyor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100527815B1 (en) * 2003-12-31 2005-11-15 대양롤랜트 주식회사 Carrier Roller for Conveyer
KR101174565B1 (en) * 2010-05-04 2012-08-16 대양롤랜트 주식회사 Roller for conveyor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102631070B1 (en) 2022-12-08 2024-01-29 박근창 Rotary roller device and the munafacturing method thereof
KR102628866B1 (en) 2023-07-12 2024-01-24 주식회사 디에스원 Method for manufacturing Conveyor

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