KR102261830B1 - roller for conveyer with insert injection method using heterogeneous material - Google Patents

roller for conveyer with insert injection method using heterogeneous material Download PDF

Info

Publication number
KR102261830B1
KR102261830B1 KR1020200163498A KR20200163498A KR102261830B1 KR 102261830 B1 KR102261830 B1 KR 102261830B1 KR 1020200163498 A KR1020200163498 A KR 1020200163498A KR 20200163498 A KR20200163498 A KR 20200163498A KR 102261830 B1 KR102261830 B1 KR 102261830B1
Authority
KR
South Korea
Prior art keywords
roller
wheel
injection
outer peripheral
protrusion
Prior art date
Application number
KR1020200163498A
Other languages
Korean (ko)
Inventor
최대천
Original Assignee
(주)유니텍
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by (주)유니텍 filed Critical (주)유니텍
Priority to KR1020200163498A priority Critical patent/KR102261830B1/en
Application granted granted Critical
Publication of KR102261830B1 publication Critical patent/KR102261830B1/en

Links

Images

Classifications

    • 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
    • B65G39/07—Other adaptations of sleeves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/32—Wheels, pinions, pulleys, castors or rollers, Rims
    • B29L2031/324—Rollers or cylinders having an axial length of several times the diameter, e.g. embossing, pressing or printing
    • 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
    • F16C2326/00—Articles relating to transporting
    • F16C2326/58—Conveyor systems, e.g. rollers or bearings therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

The present invention relates to a roller used in a conveyor, and more particularly, relates to an insert injection type conveying roller for conveyors using different materials, consisting of a wheel to which a metal shaft is fastened, and an outer peripheral roller coated on the outside of the wheel. The wheel and the outer peripheral roller are injection molded by synthetic resin of different materials. The wheel produced by the injection method is put into an injection mold and fixed, and then an injection material is injected into the injection mold to inject the outer peripheral roller on the outer peripheral surface of the wheel to increase the bonding force between the wheel and the outer peripheral roller. At the same time, by manufacturing wheels and outer peripheral rollers using synthetic resins that are relatively cheaper than metal materials, it is possible to reduce the consumption of power required to drive the conveyor through reduction of material cost and weight reduction.

Description

이종재료를 이용한 인서트 사출방식의 컨베이어용 이송롤러{roller for conveyer with insert injection method using heterogeneous material}Transfer roller for conveyor of insert injection method using heterogeneous material {roller for conveyer with insert injection method using heterogeneous material}

본 발명은 컨베이어에 사용되는 롤러에 관한 것으로서, 보다 상세하게는 금속 재질의 샤프트가 체결되는 휠과, 상기 휠 외부에 코팅되는 외주롤러로 구성되며, 상기 휠과 외주롤러는 이종재질의 합성수지에 의해 사출 성형되며, 사출방식에 의해 생산된 휠을 사출금형에 넣어 고정한 뒤 사출금형의 내부로 사출원료를 주입하여 상기 휠의 외주면에 외주롤러를 사출하여 휠과 외주롤러의 결합력을 높임과 동시에, 금속재질보다 상대적으로 저렴한 합성수지를 이용하여 휠과 외주롤러를 제작함으로써 재료비용의 절감 및 무게의 경량화를 통해 컨베이어의 구동에 필요한 동력의 소모를 낮출 수 있는 이종재료를 이용한 인서트 사출방식의 컨베이어용 이송롤러이다.The present invention relates to a roller used in a conveyor, and more particularly, is composed of a wheel to which a metal shaft is fastened, and an outer peripheral roller coated on the outside of the wheel, wherein the wheel and the outer peripheral roller are made of a synthetic resin of a different material After injection molding, the wheel produced by the injection method is put into the injection mold and fixed, and the injection material is injected into the injection mold to inject the outer peripheral roller on the outer peripheral surface of the wheel to increase the bonding force between the wheel and the outer peripheral roller, and at the same time, the metal Conveyor conveying roller of insert injection type using dissimilar material that can reduce the consumption of power required to drive the conveyor through reduction of material cost and weight reduction by manufacturing the wheel and the outer roller using synthetic resin, which is relatively cheaper than the material. to be.

일반적으로 컨베이어는 물품을 자동으로 운반하기 위한 기계장치를 말하며, 벨트나 체인에 의해 회전되는 롤러를 다수 구비하여 롤러가 회전됨에 따라 롤러 상부에 안착되어 있는 물품을 이송시키게 된다.In general, a conveyor refers to a mechanical device for automatically transporting articles, and includes a plurality of rollers rotated by a belt or a chain, and as the rollers rotate, the articles seated on the rollers are transported.

컨베이어에 사용되는 롤러와 관련된 종래기술로서는 공개특허공보 제10-2008-0047066호에 제안되어 있는 컨베이어 롤러 구조 및 그 제조방법이 있다.As a prior art related to a roller used in a conveyor, there is a structure of a conveyor roller and a manufacturing method thereof, which are proposed in Korean Patent Laid-Open No. 10-2008-0047066.

상기 공개특허에는 양단에 베어링에 지지되는 지지부를 구비하고, 중간부분은 일정한 원형단면을 가진 중간부로 이루어진 롤러베이스와; 상기 롤러베이스의 중간부 양단부에 각각 형성된 롤러나사부와; 상기 롤러나사부에 체결되는 슬리브나사부를 내주면에 구비하고, 외주면에는 거칠기형성볼이 일체로 주조된 슬리브롤러;를 포함하여 구성된 것을 특징으로 하는 컨베이어 롤러 구조가 제안되어 있는데, 금형 내부에 거칠기형성볼을 주입하여 상기 거칠기형성볼이 롤러의 표면에 부착되도록 하는 방식으로써 그 제조방법이 복잡하고, 특히 사용기간이 경과할 수록 거칠기형성볼의 탈락으로 인해 물품과 롤러 사이의 슬립현상이 발생하게 된다.The publication includes a roller base having support portions supported by bearings at both ends, and the middle portion is formed of an intermediate portion having a constant circular cross-section; roller screw portions respectively formed on both ends of the middle portion of the roller base; There is proposed a conveyor roller structure comprising a sleeve roller having a sleeve screw part fastened to the roller screw part on an inner circumferential surface, and a sleeve roller on which a roughness forming ball is integrally cast on an outer circumferential surface. The manufacturing method is complicated by injecting it so that the roughness ball is attached to the surface of the roller. In particular, as the period of use elapses, the slippage between the article and the roller occurs due to the drop of the roughness ball.

또 다른 종래기술로서는 등록특허 제10-1667206호에 제안되어 있는 세라믹 마모방지부재가 구비된 컨베이어용 이송롤러가 있다.As another prior art, there is a conveying roller for a conveyor provided with a ceramic wear preventing member proposed in Korean Patent Registration No. 10-1667206.

상기 특허에는 금속롤러(110)와, 상기 금속롤러(110)의 외경면에 부착되는 미가황고무판(120)과, 상기 미가황고무판(120)에 서로 이격되어 부착되는 복수의 세라믹 마모방지부재(130)와, 상기 세라믹 마모방지부재(130) 사이에서 미가황고무판(120)에 부착되는 미가황고무로 이루어진 복수의 메움부재(140)를 포함하며; 상기 세라믹 마모방지부재(130)는 원주 방향과 축 방향으로 서로 이격되어 미가황고무판(120)의 외경면에 부착되며; 상기 메움부재(140)는 세라믹 마모방지부재(130) 사이에서 측방으로 세라믹 마모방지부재(130)를 가압하여 구비되며, 상기 세라믹 마모방지부재(130)의 가장자리보다 돌출된 높이를 가지도록 구비되어 메움부재(140)가 가압되면서 변형되어 세라믹 마모방지부재(130)의 상면 일부를 덮도록 구비되며; 상기 미가황고무판(120)은 금속롤러(110)에 부착된 상태에서 그리고 상기 메움부재(140)는 미가황고무판(120)의 외경면에 부착된 상태에서 가압되어 가황되는 것을 특징으로 하는 세라믹 마모방지부재가 구비된 컨베이어용 이송롤러(100)가 제안되어 있는데, 세라믹 마모방지부재를 미가황고무판에 부착시킨 다음 미가황고무판을 금속롤러의 표면에 부착시킨 상태에서 가황공정이 별도로 부가되어 제작함으로써 제조공정이 복잡해지고, 특히 금속롤러가 축이 될 수밖에 없어 컨베이어의 전체적인 중량이 무거워지고 이로 인해 롤러의 회전에 필요한 구동동력이 상승되게 되며, 물품이 세라믹 마모방지부재에 계속하여 접촉하게 되면 세라믹이 탈락되어 분진이 발생됨으로써 작업장의 환경을 저하시키는 요인이 될 수 있다.The patent includes a metal roller 110, an unvulcanized rubber plate 120 attached to the outer diameter surface of the metal roller 110, and a plurality of ceramic wear-resistant members attached to the unvulcanized rubber plate 120 spaced apart from each other ( 130) and a plurality of filling members 140 made of unvulcanized rubber attached to the unvulcanized rubber plate 120 between the ceramic wear protection member 130; The ceramic wear protection member 130 is spaced apart from each other in the circumferential direction and the axial direction is attached to the outer diameter surface of the unvulcanized rubber plate (120); The filling member 140 is provided by pressing the ceramic wear preventing member 130 from the side between the ceramic wear preventing members 130, and is provided to have a height protruding from the edge of the ceramic wear preventing member 130. The filling member 140 is deformed while being pressed and provided to cover a portion of the upper surface of the ceramic wear protection member 130 ; Ceramic wear, characterized in that the unvulcanized rubber plate 120 is pressed and vulcanized in a state attached to the metal roller 110 and the filling member 140 is attached to the outer diameter surface of the unvulcanized rubber plate 120 A conveying roller 100 for a conveyor equipped with a preventive member is proposed, by attaching a ceramic wear preventing member to an unvulcanized rubber plate, and then attaching the unvulcanized rubber plate to the surface of the metal roller by adding a vulcanization process separately. The manufacturing process becomes complicated, and in particular, as the metal roller has no choice but to serve as the axis, the overall weight of the conveyor becomes heavy, which increases the driving power required to rotate the roller. It can be a factor that deteriorates the environment of the workplace by falling off and generating dust.

대한민국 공개특허공보 제10-2008-0047066호(2008. 5. 28. 공개)Korean Patent Publication No. 10-2008-0047066 (published on May 28, 2008) 대한민국 등록특허공보 제10-1667206호(2016. 10. 12. 등록)Republic of Korea Patent Publication No. 10-1667206 (registered on October 12, 2016)

따라서, 본 발명은 이종재질의 합성수지를 이용해 휠을 사출 성형하여 제작하고, 상기 합성수지의 휠을 사출금형 내부에 넣고 고정한 뒤 사출재료를 주입하여 외주롤러로 제작함으로써 휠과 외주롤러의 결합력을 높임과 동시에 전체적인 중량을 낮출 수 있는 이종재료를 이용한 인서트 사출방식의 컨베이어용 이송롤러를 제공하는데 그 목적이 있다.Therefore, the present invention is manufactured by injection molding a wheel using a synthetic resin of a different material, putting the wheel of the synthetic resin inside the injection mold and fixing it, and then injecting the injection material to manufacture the outer roller by increasing the bonding force between the wheel and the outer roller and At the same time, an object of the present invention is to provide a conveying roller for an insert injection type conveyor using dissimilar materials that can lower the overall weight.

또한, 상기 휠에 돌출부를 형성하고 상기 돌출부에 다수의 관통홀을 형성하여 상기 관통홀에 외주롤러가 사출 형성될 때 사출재료가 들어가 채워짐으로써 휠과 외주롤러의 결합력을 배가시킨 이종재료를 이용한 인서트 사출방식의 컨베이어용 이송롤러를 제공하는데 또 다른 목적이 있다.In addition, by forming a protrusion in the wheel and forming a plurality of through holes in the protrusion, an insert using a dissimilar material that doubles the bonding force between the wheel and the outer roller by filling the through hole with an injection material when the outer roller is injection-formed into the through hole Another object of the present invention is to provide an injection-type conveying roller for conveyors.

또한, 상기 휠의 몸통부에는 몸통부의 외주면을 따라 요홈을 형성하고, 상기 요홈에는 외주롤러가 사출 형성될 때 사출재료가 들어가 채워짐으로써 외주롤러가 몸통부의 축방향으로 이동되는 것을 방지한 이종재료를 이용한 인서트 사출방식의 컨베이어용 이송롤러를 제공하는데 또 다른 목적이 있다.In addition, a groove is formed in the body of the wheel along the outer circumferential surface of the body, and an injection material enters and fills the groove when the outer circumferential roller is injection-formed, thereby preventing the outer circumferential roller from moving in the axial direction of the body. Another object of the present invention is to provide a conveying roller for a conveyor of the insert injection method.

본 발명에 의한 이종재료를 이용한 인서트 사출방식의 컨베이어용 이송롤러는 컨베이어에 사용되는 이송롤러에 있어서, 금속 재질의 샤프트가 체결되는 휠과, 상기 휠 외부에 코팅되는 외주롤러로 구성되며, 상기 휠과 외주롤러는 이종재질의 합성수지에 의해 사출 성형되며, 사출방식에 의해 생산된 휠을 사출금형에 넣고 고정한 뒤 사출금형의 내부로 사출원료를 주입하여 상기 휠의 외주면에 외주롤러를 사출하여 휠과 외주롤러의 결합력을 높인 것이 특징이다.The conveying roller for a conveyor of an insert injection type using a dissimilar material according to the present invention is a conveying roller used in a conveyor, and is composed of a wheel to which a metal shaft is fastened, and an outer peripheral roller coated on the outside of the wheel, the wheel The outer roller and the outer roller are injection molded by synthetic resin of different materials, and the wheel produced by the injection method is put into the injection mold and fixed, then the injection material is injected into the injection mold, and the outer peripheral roller is injected on the outer peripheral surface of the wheel to form the wheel It is characterized by increased bonding strength of the outer roller.

본 발명에 의한 이종재료를 이용한 인서트 사출방식의 컨베이어용 이송롤러는 이종재질의 합성수지를 이용해 휠을 사출 성형하여 제작하고, 상기 합성수지의 휠을 사출금형 내부에 넣고 고정한 뒤 사출재료를 주입하여 외주롤러로 제작함으로써 휠과 외주롤러의 결합력을 높임과 동시에 전체적인 중량을 낮출 수 있는 현저한 효과가 있으며, 상기 휠에 돌출부를 형성하고 상기 돌출부에 다수의 관통홀을 형성하여 상기 관통홀에 외주롤러가 사출 형성될 때 사출재료가 들어가 채워짐으로써 휠과 외주롤러의 결합력을 배가시킨 효과와 함께, 상기 휠의 몸통부에는 몸통부의 외주면을 따라 요홈을 형성하고, 상기 요홈에는 외주롤러가 사출 형성될 때 사출재료가 들어가 채워짐으로써 외주롤러가 몸통부의 축방향으로 이동되는 것을 방지한 현저한 효과가 있다.The conveying roller for a conveyor of the insert injection type using a dissimilar material according to the present invention is manufactured by injection molding a wheel using a synthetic resin of a dissimilar material, inserting the wheel of the synthetic resin into the injection mold and fixing it, and then injecting the injection material to the outer circumference roller There is a remarkable effect of increasing the bonding force between the wheel and the outer peripheral roller and lowering the overall weight at the same time by manufacturing it, and the outer roller is injected into the through hole by forming a protrusion in the wheel and forming a plurality of through holes in the protrusion In addition to the effect of doubling the bonding force between the wheel and the outer circumferential roller when the injection material enters and fills, a groove is formed in the body of the wheel along the outer circumferential surface of the body, and the injection material is formed in the groove when the outer peripheral roller is injection-formed. There is a remarkable effect of preventing the outer peripheral roller from moving in the axial direction of the body part by being filled in.

도 1은 본 발명의 전체구성 사시도
도 2는 본 발명의 분리구성도
도 3과 도 4는 본 발명의 일부분 절개구성도
도 5는 본 발명의 타실시 예시도1 is a perspective view of the overall configuration of the present invention;
2 is an isolated configuration diagram of the present invention;
3 and 4 are partially cutaway views of the present invention.
5 is an exemplary view of another embodiment of the present invention;

본 발명은 컨베이어에 사용되는 롤러에 관한 것으로서, 보다 상세하게는 금속 재질의 샤프트가 체결되는 휠과, 상기 휠 외부에 코팅되는 외주롤러로 구성되며, 상기 휠과 외주롤러는 이종재질의 합성수지에 의해 사출 성형되며, 사출방식에 의해 생산된 휠을 사출금형에 넣어 고정한 뒤 사출금형의 내부로 사출원료를 주입하여 상기 휠의 외주면에 외주롤러를 사출하여 휠과 외주롤러의 결합력을 높임과 동시에, 금속재질보다 상대적으로 저렴한 합성수지를 이용하여 휠과 외주롤러를 제작함으로써 재료비용의 절감 및 무게의 경량화를 통해 컨베이어의 구동에 필요한 동력의 소모를 낮출 수 있는 이종재료를 이용한 인서트 사출방식의 컨베이어용 이송롤러이다.The present invention relates to a roller used in a conveyor, and more particularly, is composed of a wheel to which a metal shaft is fastened, and an outer peripheral roller coated on the outside of the wheel, wherein the wheel and the outer peripheral roller are made of a synthetic resin of a different material After injection molding, the wheel produced by the injection method is put into the injection mold and fixed, and the injection material is injected into the injection mold to inject the outer peripheral roller on the outer peripheral surface of the wheel to increase the bonding force between the wheel and the outer peripheral roller, and at the same time, the metal Conveyor conveying roller of insert injection type using dissimilar material that can reduce the consumption of power required to drive the conveyor through reduction of material cost and weight reduction by manufacturing the wheel and the outer roller using synthetic resin, which is relatively cheaper than the material. to be.

이하, 첨부된 도면에 의해 본 발명의 바람직한 실시예를 상세히 설명하면 다음과 같다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명의 전체구성 사시도이고, 도 2는 본 발명의 분리구성도이며, 도 3과 도 4는 본 발명의 일부분 절개구성도로써, 본 발명에 의한 이종재료를 이용한 인서트 사출방식의 컨베이어용 이송롤러는 컨베이어에 사용되는 이송롤러에 있어서, 금속 재질의 샤프트가 체결되는 휠(10)과, 상기 휠(10) 외부에 코팅되는 외주롤러(20)로 구성되며, 상기 휠(10)과 외주롤러(20)는 이종재질의 합성수지에 의해 사출 성형되며, 사출성형방식에 의해 생산된 휠(10)을 사출금형에 넣고 고정한 뒤 사출금형의 내부로 사출원료를 주입하여 상기 휠(10)의 외주면에 외주롤러(20)를 사출하여 휠(10)과 외주롤러(20)의 결합력을 높인 것이 특징이다.1 is a perspective view of the entire configuration of the present invention, Figure 2 is an exploded configuration diagram of the present invention, Figures 3 and 4 are a partial cutaway configuration of the present invention, insert injection type conveyor using a dissimilar material according to the present invention The transfer roller is a transfer roller used in a conveyor, and is composed of a wheel 10 to which a metal shaft is fastened, and an outer peripheral roller 20 coated on the outside of the wheel 10, and the wheel 10 and The outer roller 20 is injection-molded by a synthetic resin of a different material, and the wheel 10 produced by the injection molding method is put into the injection mold and fixed, and then the injection material is injected into the injection mold to the wheel 10. It is characterized in that the coupling force between the wheel 10 and the outer circumferential roller 20 is increased by injecting the outer circumferential roller 20 on the outer circumferential surface.

먼저, 상기 휠(10)은 금속 재질의 샤프트(도시하지 않음)가 체결될 수 있도록 샤프트체결홈(14)이 휠(10)의 중심을 관통하도록 형성되고, 베어링의 체결을 위한 베어링자리홈(17)이 형성되어 있으며, 상기 휠(10)의 외부 즉, 외주면을 둘러싸는 형태로 외주롤러(20)가 코팅되어 형성된다.First, the wheel 10 is formed such that a shaft fastening groove 14 penetrates the center of the wheel 10 so that a metal shaft (not shown) can be fastened, and a bearing seat groove for fastening the bearing ( 17) is formed, and the outer circumferential roller 20 is coated to surround the outside of the wheel 10, that is, the outer circumferential surface.

이때 상기 휠(10)과 외주롤러(20)의 생산공정은 먼저 휠(10)의 모양과 일치하는 모양의 캐비티가 형성된 사출금형 내부에 사출재료를 주입하여 냉각시켜 만들게 되고, 이후 사출성형된 휠(10)을 만들로자 하는 롤러의 형상대로 캐비티가 형성된 또 다른 사출금형 내부에 휠(10)을 넣고 상기 캐비티에 휠(10)의 제조에 사용된 사출재료와는 다른 사출재료를 주입하여 휠(10)의 외주면에 외주롤러(20)로 사출 성형하게 된다.At this time, the production process of the wheel 10 and the outer peripheral roller 20 is made by first injecting an injection material into an injection mold having a cavity having a shape matching the shape of the wheel 10 and cooling it, and then the injection molded wheel The wheel 10 is put inside another injection mold in which a cavity is formed according to the shape of the roller to be made (10), and an injection material different from the injection material used for manufacturing the wheel 10 is injected into the cavity, and the wheel ( 10) is injection-molded with the outer peripheral roller 20 on the outer peripheral surface.

따라서, 휠(10)과 외주롤러(20)는 플라스틱을 주재료로 하여 사출 성형하게 됨으로써, 서로에 대한 결합력이 높아지게 되고 이로써 사용기간이 경과하게 되더라도 휠(10)과 외주롤러(20) 사이에 결합력이 유지됨으로써, 외주롤러(20)가 휠(10)에서 미끄러지지 않게 된다.Therefore, the wheel 10 and the outer peripheral roller 20 are injection-molded using plastic as the main material, thereby increasing the bonding force to each other, and thus the bonding force between the wheel 10 and the outer peripheral roller 20 even if the period of use elapses. By maintaining this, the outer peripheral roller 20 does not slip on the wheel 10 .

도 2를 참조하면, 상기 휠(10)은 축 방향으로 샤프트체결홈(14)이 형성된 몸통부(11)와, 상기 몸통부(11)에서 반경 방향으로 일정두께만큼 돌출된 돌출부(12)로 구성되며, 상기 돌출부(12)에는 돌출부(12)의 외부 모서리를 따라 둘 이상의 관통홀(13)이 형성되어 있다.Referring to FIG. 2 , the wheel 10 includes a body 11 having a shaft fastening groove 14 formed in the axial direction, and a protrusion 12 protruding from the body 11 by a predetermined thickness in a radial direction. Two or more through-holes 13 are formed in the protrusion 12 along the outer edge of the protrusion 12 .

즉, 몸통부(11)는 내부에 샤프트체결홈(14)이 형성된 대략 원통형의 모양을 가지고, 상기 몸통부(11)의 상부와 하부에 각각 반경 방향으로 일정두께만큼 돌출부(12)가 돌출 형성되며, 상기 돌출부(12)에는 균일한 간격으로 관통홀(13)이 형성된다. 도시된 관통홀(13)의 수는 16개로써 적절한 수의 관통홀은 8~20개 사이가 바람직하다.That is, the body 11 has a substantially cylindrical shape in which the shaft fastening groove 14 is formed, and the protrusions 12 protrude by a predetermined thickness in the radial direction on the upper and lower portions of the body 11, respectively. The through-holes 13 are formed at uniform intervals in the protrusions 12 . The number of the illustrated through-holes 13 is 16, and the appropriate number of through-holes is preferably between 8 and 20.

도 2 내지 도 4를 참조하면, 상기 휠(10)의 돌출부(12)에 형성된 관통홀(13)에는 외주롤러(20)가 사출 성형되면서 사출재료가 채워져 연결돌기(21)로 형성됨으로써, 휠(10)과 외주롤러(20)가 회전될 때 견고한 결합상태가 유지되어 외주롤러(20)가 휠(10)에서 미끄러지지 않게 된다.2 to 4 , the through-hole 13 formed in the protrusion 12 of the wheel 10 is filled with an injection material while the outer roller 20 is injection-molded to form the connecting protrusion 21, so that the wheel When the (10) and the outer peripheral roller (20) are rotated, a solidly coupled state is maintained so that the outer peripheral roller (20) does not slide from the wheel (10).

즉, 사출금형 내에 관통홀(13)이 형성되어 있는 휠(10)을 넣고 금형의 캐비티에 외주롤러(20)의 사출을 위한 사출재료를 주입하면, 돌출부(12)의 외주면 쪽에 사출재료가 채워짐과 동시에 관통홀(13)에 사출재료가 채워지게 되고, 이 상태에서 냉각이 이루어짐으로써 외주롤러(20)는 돌출부(20)의 외주면 전체를 둘러싸면서 관통홀(13)을 통해 상면과 하면이 연결되어 있는 연결돌기(21)가 일정한 간격으로 형성되어 있는 상태로 성형되게 되어, 결국 휠(10)과 외주롤러(20) 사이의 결합력이 극대화되게 된다.That is, if the wheel 10 having the through hole 13 formed therein is put in the injection mold and the injection material for injection of the outer roller 20 is injected into the cavity of the mold, the injection material is filled on the outer peripheral surface of the protrusion 12 . At the same time, the injection material is filled in the through hole 13, and by cooling in this state, the outer circumferential roller 20 surrounds the entire outer circumferential surface of the protrusion 20 and the upper and lower surfaces are connected through the through hole 13 The connecting protrusions 21 are formed in a state in which they are formed at regular intervals, and consequently, the coupling force between the wheel 10 and the outer peripheral roller 20 is maximized.

여기서, 상기 몸통부(11)에는 돌출부(12)의 상부와 하부 쪽으로 연장되어 있는 연장돌기(16)가 더 형성되고, 상기 연장돌기(16)는 돌출부(12)를 둘러싸는 형태로 형성되는 외주롤러(20)가 롤러의 중심축 쪽으로 더 이상 진입되어 형성되는 것을 방지함과 동시에, 외주롤러(20)가 형성되는 두께를 일정하게 가져갈 수 있도록 사출금형 내부의 공간을 막아주는 역할을 수행한다.Here, the body portion 11 is further formed with an extension protrusion 16 extending toward the upper and lower sides of the protrusion 12 , and the extension protrusion 16 has an outer periphery formed to surround the protrusion 12 . It prevents the roller 20 from being formed further toward the central axis of the roller, and at the same time serves to block the space inside the injection mold so that the thickness at which the outer peripheral roller 20 is formed can be kept constant.

즉, 사출금형의 가동금형에 형성된 캐비티의 내면이 연장돌기(16)에 닿는 형태로 고정금형과 합형시키고, 이 상태에서 사출재료를 주입하여 연장돌기(16)의 단면과 사출에 의해 형성되는 외주롤러(20)의 단면을 일치시켜 롤러의 형상을 매끄럽게 가져갈 수 있으며, 균일한 품질의 롤러를 제작할 수 있다.That is, the inner surface of the cavity formed in the movable mold of the injection mold is combined with the fixed mold in the form of contacting the extension protrusion 16, and the injection material is injected in this state to the cross section of the extension protrusion 16 and the outer periphery formed by injection By matching the cross section of the roller 20, the shape of the roller can be taken smoothly, and a roller of uniform quality can be manufactured.

또한, 상기 휠(10)의 몸통부(11)에는 몸통부(11)의 외주면을 따라 요홈(18)이 형성되고, 상기 요홈(18)에는 외주롤러(20)가 사출 성형되면서 사출재료가 채워져 끼움돌기(22)로 형성됨으로써, 외주롤러(20)에 대한 휠(10)의 축방향 이동이 제한되게 된다.In addition, a groove 18 is formed in the body 11 of the wheel 10 along the outer circumferential surface of the body 11, and the groove 18 is filled with an injection material while the outer roller 20 is injection molded. By being formed with the fitting protrusion 22, the axial movement of the wheel 10 with respect to the outer peripheral roller 20 is restricted.

즉, 몸통부(11)의 외주면 일측에는 요홈(18)이 형성되어 있으며, 상기 요홈(18)에도 외주롤러(20)의 사출시 사출재료가 채워져 끼움돌기(22)로 형성됨으로써 결국 외주롤러(20)는 요홈(18)에 채워진 끼움돌기(22)에 의해 휠(10)의 축방향 이동이 제한될 수 있다.That is, a recess 18 is formed on one side of the outer circumferential surface of the body 11, and the recess 18 is also filled with an injection material when the outer circumferential roller 20 is injected and is formed into a fitting protrusion 22, so that the outer circumferential roller ( 20), the axial movement of the wheel 10 may be restricted by the fitting protrusion 22 filled in the recess 18.

또한, 상기 돌출부(12)는 몸통부(11)에 형성된 오목홈(15)을 중심으로 상부와 하부에 각각 형성되며, 상기 외주롤러(20)는 돌출부(12)만을 감싸는 형태로 형성되어 상하 외주롤러(20)는 일정거리 떨어져 형성된다.In addition, the protrusion 12 is formed in the upper and lower portions respectively with the concave groove 15 formed in the body 11 as the center, and the outer peripheral roller 20 is formed in a shape surrounding only the protrusion 12 , so that the upper and lower outer periphery The rollers 20 are formed at a certain distance apart.

즉, 몸통부(11)의 축방향 중심에는 몸통부(11)의 중심축 방향으로 볼록한 형상의 오목홈(15)이 형성되어 있고, 상기 오목홈(15)의 상부와 하부에 각각 돌출부(12)가 형성되는데, 상기 오목홈(15)은 롤러의 특정 부분에 하중이 치우칠 경우에도 그 자체의 형상으로 인해 변형을 최소화할 수 있으며, 외주롤러(20)가 오목홈(15) 쪽에는 형성되지 않음으로써 자재비용을 줄이고 중량을 낮출 수 있는 효과가 있다.That is, a concave groove 15 having a convex shape in the central axial direction of the body 11 is formed in the axial center of the body 11 , and protrusions 12 are respectively formed at the upper and lower portions of the concave groove 15 . ) is formed, the concave groove 15 can minimize deformation due to its shape even when the load is biased on a specific part of the roller, and the outer peripheral roller 20 is not formed on the concave groove 15 side. This has the effect of reducing material costs and reducing weight.

여기서, 상기 휠(10)과 외주롤러(20)는 녹는 점이 서로 다르며, 외주롤러(20)의 녹는 점이 휠(10)의 녹는 점보다 낮은 것이 바람직하다.Here, the wheel 10 and the outer peripheral roller 20 have different melting points, and it is preferable that the melting point of the outer peripheral roller 20 is lower than the melting point of the wheel 10 .

즉, 휠(10)은 금속재질의 샤프트가 체결되는 샤프트체결홈(14)이 형성되면서, 롤러의 회전에 대한 마찰력을 줄이기 위해 베어링이 체결되게 되는데, 이로써 외주롤러(20)에 비해 상대적으로 고강성의 재질이 바람직하며, 특히 녹는 점이 외주롤러(20)의 녹는 점보다 높은 것이 바람직하다.That is, the wheel 10 has a shaft fastening groove 14 to which a metal shaft is fastened, and a bearing is fastened to reduce the frictional force against the rotation of the roller. A rigid material is preferable, and in particular, it is preferable that the melting point is higher than the melting point of the outer peripheral roller 20 .

부연하면, 휠(10)의 녹는 점이 외주롤러(20)의 녹는 점보다 낮으면, 휠(10)이 사출금형 내부에 인서트되어 있는 상태에서 겔 상태의 외주롤러(20) 사출재료가 휠(10)에 닿으면 사출재료에 의해 휠(10)이 녹을 수 있고 이로써 휠(1)의 형상변형이 생길 수 있으므로, 휠(10)의 녹는 점이 외주롤러(20)의 녹는 점보다 어느 정도는 높아야 한다.In other words, if the melting point of the wheel 10 is lower than the melting point of the outer peripheral roller 20, the injection material of the outer roller 20 in a gel state while the wheel 10 is inserted in the injection mold is transferred to the wheel 10 ), the wheel 10 can be melted by the injection material, which can cause shape deformation of the wheel 1, so the melting point of the wheel 10 must be higher than the melting point of the outer roller 20 .

이때 사용할 수 있는 휠(10)의 재료로는 나일론이 사출재료의 전체중량과 대비하여 60중량% 이상을 함유한 주재료로 사용하고, 글라스화이버나 무기재료를 일정량 함유한 재료를 사용할 수 있으며, 외주롤러(20)의 재료로는 폴리우레탄이 사출재료의 전체중량과 대비하여 80중량% 이상을 함유한 주재료로 사용하고, 발포제와 경화제 등을 부재료로 넣어서 성형할 수 있다.As a material of the wheel 10 that can be used at this time, nylon is used as the main material containing 60% by weight or more compared to the total weight of the injection material, and a material containing a certain amount of glass fiber or inorganic material can be used, and the outer circumference As a material of the roller 20, polyurethane is used as a main material containing 80% by weight or more with respect to the total weight of the injection material, and a foaming agent and a curing agent are added as sub-materials.

도 5는 본 발명의 타실시 예시도로써, 상기 외주롤러(20)의 원주면에는 반원 형상의 돌기(23)가 형성되어 있어서, 상기 외주롤러(20)와 접하여 이동되는 물품의 논슬립 효과를 높인 것이 특징이다.5 is an exemplary view of another embodiment of the present invention, a semicircular protrusion 23 is formed on the circumferential surface of the outer circumferential roller 20, so that the non-slip effect of the article moving in contact with the outer circumferential roller 20 is enhanced. is characterized.

즉, 상기 반원형상의 돌기(23)는 외주롤러(20)의 상부에 물품이 안착되면 물품의 저면과 돌기가 밀착되는데, 물품의 무게가 무거울수록 외주롤러(20)에 형성되어 있는 돌기(23)를 압축시킨 상태에서 외주롤러(20)에 의해 회전력이 전달됨으로써 컨베이어의 곡선구간으로 인해 물품이 이송되면서 원심력에 의해 컨베이어의 외부로 밀려나오는 것이 방지될 수 있으며, 상기 돌기(23)는 외주롤러(20)의 축방향으로 형성하거나 반경방향으로 형성할 수 있다.That is, the semi-circular protrusion 23 is in close contact with the bottom surface of the article when the article is seated on the upper portion of the outer peripheral roller 20. The heavier the weight of the article, the more the protrusion 23 is formed on the outer peripheral roller 20 In the compressed state, rotational force is transmitted by the outer roller 20, so that the article is transferred due to the curved section of the conveyor, and it can be prevented from being pushed out of the conveyor by centrifugal force, and the protrusion 23 is the outer peripheral roller ( 20) may be formed in the axial direction or may be formed in the radial direction.

결국, 본 발명에 의한 이종재료를 이용한 인서트 사출방식의 컨베이어용 이송롤러는 이종재질의 합성수지를 이용해 휠을 사출 성형하여 제작하고, 상기 합성수지의 휠을 사출금형 내부에 넣고 사출재료를 주입하여 외주롤러로 제작함으로써 휠과 외주롤러의 결합력을 높임과 동시에 전체적인 중량을 낮출 수 있는 현저한 효과가 있으며, 상기 휠에 돌출부를 형성하고 상기 돌출부에 다수의 관통홀을 형성하여 상기 관통홀에 외주롤러가 사출 형성될 때 사출재료가 들어가 채워짐으로써 휠과 외주롤러의 결합력을 배가시킨 효과와 함께, 상기 휠의 몸통부에는 몸통부의 외주면을 따라 요홈을 형성하고, 상기 요홈에는 외주롤러가 사출 형성될 때 사출재료가 들어가 채워짐으로써 외주롤러가 몸통부의 축방향으로 이동되는 것을 방지한 현저한 효과가 있다.After all, the conveying roller for a conveyor of the insert injection method using a dissimilar material according to the present invention is manufactured by injection molding a wheel using a synthetic resin of a dissimilar material, putting the wheel of the synthetic resin inside the injection mold, and injecting the injection material to the outer roller There is a remarkable effect of increasing the bonding force between the wheel and the outer peripheral roller and lowering the overall weight at the same time by manufacturing it, and the outer roller is injected into the through hole by forming a protrusion in the wheel and forming a plurality of through holes in the protrusion In addition to the effect of doubling the bonding force between the wheel and the outer circumferential roller when the injection material enters and fills, a groove is formed in the body of the wheel along the outer circumferential surface of the body, and the injection material is formed in the groove when the outer peripheral roller is injection-formed. There is a remarkable effect of preventing the outer peripheral roller from moving in the axial direction of the body part by being filled in.

10; 휠
11. 몸통부 12. 돌출부
13. 관통홀 14. 샤프트체결홈
15. 오목홈 16. 연장돌기
17. 베어링자리홈 18. 요홈
20; 외주롤러
21. 연결돌기 22. 끼움돌기
23. 돌기10; wheel
11. Body 12. Projection
13. Through hole 14. Shaft fastening groove
15. Concave groove 16. Extension projection
17. Bearing seat groove 18. Groove
20; outer roller
21. Connecting projection 22. Fitting projection
23. Turning

Claims (7)

컨베이어에 사용되는 이송롤러에 있어서,
금속 재질의 샤프트가 체결되는 휠(10)과, 상기 휠(10) 외부에 코팅되는 외주롤러(20)로 구성되며, 상기 휠(10)과 외주롤러(20)는 이종재질의 합성수지에 의해 사출 성형되며,
사출성형방식에 의해 생산된 휠(10)을 사출금형에 넣고 고정한 뒤 사출금형의 내부로 사출원료를 주입하여 상기 휠(10)의 외주면에 외주롤러(20)를 사출하여 휠(10)과 외주롤러(20)의 결합력을 높이고,
상기 휠(10)은 축 방향으로 샤프트체결홈(14)이 형성된 몸통부(11)와, 상기 몸통부(11)에서 반경 방향으로 일정두께만큼 돌출된 돌출부(12)로 구성되며, 상기 돌출부(12)에는 돌출부(12)의 외부 모서리를 따라 둘 이상의 관통홀(13)이 형성되어 있으며,
상기 돌출부(12)는 몸통부(11)에 형성된 오목홈(15)을 중심으로 상부와 하부에 각각 형성되며, 상기 외주롤러(20)는 돌출부(12)만을 감싸는 형태로 형성되어 상하 외주롤러(20)는 일정거리 떨어져 형성되며,
상기 몸통부(11)에는 돌출부(12)의 상부와 하부 쪽으로 연장되어 있는 연장돌기(16)가 더 형성되어 있는 것이 특징인 이종재료를 이용한 인서트 사출방식의 컨베이어용 이송롤러.
In the conveying roller used in the conveyor,
It consists of a wheel 10 to which a metal shaft is fastened, and an outer peripheral roller 20 coated on the outside of the wheel 10, and the wheel 10 and the outer peripheral roller 20 are injected by a synthetic resin of a different material. molded,
The wheel 10 produced by the injection molding method is put into the injection mold and fixed, and then the injection raw material is injected into the injection mold, and the outer roller 20 is injected into the outer peripheral surface of the wheel 10, and the wheel 10 and the outer periphery Increase the bonding force of the roller (20),
The wheel 10 includes a body 11 having a shaft fastening groove 14 formed in the axial direction, and a protrusion 12 protruding from the body 11 by a predetermined thickness in a radial direction, and the protrusion ( 12) has two or more through-holes 13 formed along the outer edge of the protrusion 12,
The protrusion 12 is formed in the upper and lower portions centering on the concave groove 15 formed in the body 11, and the outer roller 20 is formed to surround only the protrusion 12, so that the upper and lower outer rollers ( 20) is formed at a certain distance apart,
The insert injection type conveyor conveying roller using a dissimilar material, characterized in that the body part 11 is further formed with an extension protrusion 16 extending toward the upper and lower sides of the protrusion part 12 .
 삭제delete 제1항에 있어서,
상기 휠(10)의 돌출부(12)에 형성된 관통홀(13)에는 외주롤러(20)가 사출 성형되면서 사출재료가 채워져 연결돌기(21)로 형성됨으로써, 휠(10)과 외주롤러(20)가 회전될 때 견고한 결합상태가 유지되어 외주롤러(20)가 휠(10)에서 미끄러지지 않는 것이 특징인 이종재료를 이용한 인서트 사출방식의 컨베이어용 이송롤러.
According to claim 1,
The through-hole 13 formed in the protrusion 12 of the wheel 10 is filled with an injection material while the outer roller 20 is injection-molded to form the connecting protrusion 21, thereby forming the wheel 10 and the outer roller 20. A conveying roller for an insert injection type conveyor using a dissimilar material, characterized in that the outer roller 20 does not slide on the wheel 10 by maintaining a solid bonding state when is rotated.
 제1항에 있어서,
상기 휠(10)의 몸통부(11)에는 몸통부(11)의 외주면을 따라 요홈(18)이 형성되고, 상기 요홈(18)에는 외주롤러(20)가 사출 성형되면서 사출재료가 채워져 끼움돌기(22)로 형성됨으로써, 외주롤러(20)에 대한 휠(10)의 축방향 이동이 제한되는 것이 특징인 이종재료를 이용한 인서트 사출방식의 컨베이어용 이송롤러.
According to claim 1,
A recess 18 is formed in the body 11 of the wheel 10 along the outer peripheral surface of the body 11, and the recess 18 is filled with an injection material while the outer circumferential roller 20 is injection-molded. By forming (22), the axial movement of the wheel (10) with respect to the outer peripheral roller (20) is a transfer roller for an insert injection type conveyor using a dissimilar material, characterized in that it is limited.
 제1항에 있어서,
상기 휠(10)과 외주롤러(20)는 녹는 점이 서로 다르며, 외주롤러(20)의 녹는 점이 휠(10)의 녹는 점보다 낮은 것이 특징인 이종재료를 이용한 인서트 사출방식의 컨베이어용 이송롤러.
According to claim 1,
The wheel 10 and the outer roller 20 have different melting points, and the melting point of the outer roller 20 is lower than the melting point of the wheel 10. Insert injection type conveyor conveying roller using dissimilar materials.
 제1항에 있어서,
상기 외주롤러(20)의 원주면에는 반원 형상의 돌기(23)가 형성되어 있어서, 상기 외주롤러(20)와 접하여 이동되는 물품의 논슬립 효과를 높인 것이 특징인 이종재료를 이용한 인서트 사출방식의 컨베이어용 이송롤러.According to claim 1,
A semicircular protrusion 23 is formed on the circumferential surface of the outer circumferential roller 20, so that the non-slip effect of the article moving in contact with the outer circumferential roller 20 is enhanced. for conveying rollers. 삭제delete
KR1020200163498A 2020-11-29 2020-11-29 roller for conveyer with insert injection method using heterogeneous material KR102261830B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020200163498A KR102261830B1 (en) 2020-11-29 2020-11-29 roller for conveyer with insert injection method using heterogeneous material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020200163498A KR102261830B1 (en) 2020-11-29 2020-11-29 roller for conveyer with insert injection method using heterogeneous material

Publications (1)

Publication Number Publication Date
KR102261830B1 true KR102261830B1 (en) 2021-06-07

Family

ID=76374088

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020200163498A KR102261830B1 (en) 2020-11-29 2020-11-29 roller for conveyer with insert injection method using heterogeneous material

Country Status (1)

Country Link
KR (1) KR102261830B1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102382064B1 (en) * 2021-09-14 2022-04-01 김용수 Guide roller
KR102463868B1 (en) * 2022-03-24 2022-11-04 대동이브이 주식회사 Tire for high capacity in vehicle with wheel and manufacturing method thereof
WO2023008725A1 (en) * 2021-07-27 2023-02-02 허계용 Friction roller for conveyor

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20080047066A (en) 2006-11-24 2008-05-28 현대자동차주식회사 Conveyer roller structure and manufacturing method thereof
KR20130053547A (en) * 2011-11-15 2013-05-24 오티스 엘리베이터 컴파니 Double injection molding roller for elevator
KR101667206B1 (en) 2014-08-11 2016-10-18 주식회사 일신플렌텍 Conveyor roller with ceramic anti- wear member and manufacturing method there of
KR20180021297A (en) * 2016-08-18 2018-03-02 조선대학교산학협력단 Insert molding roller having high efficiency inheat dissipation

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20080047066A (en) 2006-11-24 2008-05-28 현대자동차주식회사 Conveyer roller structure and manufacturing method thereof
KR20130053547A (en) * 2011-11-15 2013-05-24 오티스 엘리베이터 컴파니 Double injection molding roller for elevator
KR101667206B1 (en) 2014-08-11 2016-10-18 주식회사 일신플렌텍 Conveyor roller with ceramic anti- wear member and manufacturing method there of
KR20180021297A (en) * 2016-08-18 2018-03-02 조선대학교산학협력단 Insert molding roller having high efficiency inheat dissipation

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023008725A1 (en) * 2021-07-27 2023-02-02 허계용 Friction roller for conveyor
KR102382064B1 (en) * 2021-09-14 2022-04-01 김용수 Guide roller
KR102463868B1 (en) * 2022-03-24 2022-11-04 대동이브이 주식회사 Tire for high capacity in vehicle with wheel and manufacturing method thereof

Similar Documents

Publication Publication Date Title
KR102261830B1 (en) roller for conveyer with insert injection method using heterogeneous material
US10520029B2 (en) Structure with thermoplastic elastomer enveloping layer, bearing, and drive module
US10550893B2 (en) Rolling bearing
US4109343A (en) Trolley wheel assembly
US4006810A (en) Resilient conveyor rollers
EP1706337A1 (en) Conveyor belt modules with embedded rollers retained in the modules and associated method
US20060160647A1 (en) Molded composite pulley
KR20130053547A (en) Double injection molding roller for elevator
EP0738674A2 (en) Set of modular elements for the construction of a driving pulley for a belt conveyor
KR20170119074A (en) Wheel for industry
EP0788438B1 (en) Wheel and method for manufacturing of the same
US6003661A (en) Roller conveyor and supporting roller
CN117072565A (en) Injection molding aligning bearing retainer and aligning bearing
US10598223B2 (en) Method of manufacturing an enveloping layer-coated slide bearing
KR20180010016A (en) Flexible plastic cage and manufacturing method thereof
KR19990088596A (en) Return Roller for a Slat Conveyor
JP3013465B2 (en) Synthetic resin products with bearings
KR20230025684A (en) A conveyor drive roller with wear-resistant member with improved drop-off prevention function
KR102250391B1 (en) transport rollers for conveyors with increased durability
KR200452274Y1 (en) Hanger Roller for Elevator Door
KR101958215B1 (en) Conveyor roller with anti- wear member hardly separated
KR102670680B1 (en) Friction roller for conveyor
US3287069A (en) Roller for supporting conveyor belts
KR20100067745A (en) Thrust ball bearing
JP5639102B2 (en) Pachinko machine transfer device and roller of roller transfer device

Legal Events

Date Code Title Description
E701 Decision to grant or registration of patent right
GRNT Written decision to grant