WO2018061325A1 - チェーン式搬送装置 - Google Patents

チェーン式搬送装置 Download PDF

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Publication number
WO2018061325A1
WO2018061325A1 PCT/JP2017/021092 JP2017021092W WO2018061325A1 WO 2018061325 A1 WO2018061325 A1 WO 2018061325A1 JP 2017021092 W JP2017021092 W JP 2017021092W WO 2018061325 A1 WO2018061325 A1 WO 2018061325A1
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WO
WIPO (PCT)
Prior art keywords
arm
rod
chain type
pair
type conveying
Prior art date
Application number
PCT/JP2017/021092
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
尚史 後藤
英輝 志村
実 南田
Original Assignee
中外炉工業株式会社
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 中外炉工業株式会社 filed Critical 中外炉工業株式会社
Publication of WO2018061325A1 publication Critical patent/WO2018061325A1/ja

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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
    • B65G17/00—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface
    • B65G17/06—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface having a load-carrying surface formed by a series of interconnected, e.g. longitudinal, links, plates, or platforms
    • 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
    • B65G17/00—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface
    • B65G17/30—Details; Auxiliary devices
    • B65G17/32—Individual load-carriers
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path
    • F27B9/24—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path being carried by a conveyor
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/32—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for gear wheels, worm wheels, or the like

Definitions

  • the present invention relates to a chain type conveying apparatus for conveying a workpiece to be heat-treated in a heat treatment furnace.
  • a transport device that transports a workpiece to be heat-treated in a heat treatment furnace for example, a transport device that transports the work on a mesh belt and transports the inside of the heat treatment furnace is known (see, for example, Patent Document 1). It is known to be formed by a plurality of generally flat metal wire spirals having an upper transport surface, a lower surface and side edges, each extending across the belt (e.g. 2).
  • a transport device that transports a slat plate with rollers attached to both ends by roller guides provided at both ends in the width direction, and transports the workpieces side by side on the slat plate (see, for example, Patent Document 3).
  • support rods that extend the rotation shafts of the endless chain pieces installed at both ends of the cradle for receiving goods are fitted to both ends of the pipe-shaped conveyance rod, and the endless chain is driven to drive the endless chain.
  • a conveying device that pushes and conveys a cradle is known (see Patent Document 4).
  • the mesh belt is made of a metal wire, heat resistance is ensured, but a large amount of wire is required to obtain sufficient strength. Since the mesh belt is made finer, the front and back air permeability cannot be sufficiently obtained, and in the case of a transfer device using a slat plate, no air permeability from the lower side of the work is obtained. . For this reason, in any case, it is difficult to heat-treat the workpiece uniformly. In addition, for example, when transporting a workpiece having a protruding portion such as a gear with a shaft, it is difficult to transport the workpiece while maintaining the same posture on a plane such as a mesh belt or a slat plate. There is.
  • the present invention was devised in view of the above-described conventional problems, and an object thereof is to provide a chain type conveying apparatus capable of more uniform heat treatment of a workpiece.
  • a chain type conveying apparatus is a chain type conveying apparatus that conveys a workpiece to be heat-treated, and a pair of chains that are arranged along the conveying direction and spaced apart from each other, and spans between the pair of chains. And a plurality of spanning rods that circulate together with the pair of chains, and a plurality of arms that are provided on the spanning rod along the transport direction and on which the workpiece is placed. To do.
  • the pair of chains each have a protruding rod protruding in a direction facing each other
  • the bridge rod has an insertion portion into which the protruding rod is inserted at both ends, and one end is It is fixed to the projecting rod, and the other end is inserted so as to be relatively movable in the longitudinal direction of the spanning rod.
  • the arm is provided across two different connecting rods, attached to one of the connecting rods, and placed on the other connecting rod.
  • the arm has a rotation support end, and the rotation support end is rotatably attached to the bridge rod.
  • the arm is mounted on the other bridge rod so as to be relatively movable in the transport direction.
  • a plurality of arm pairs each including two arms on which a single workpiece is placed and spaced apart in the longitudinal direction of the spanning rod are provided in the transport direction.
  • the two matching arm pairs are characterized in that two arms forming the other arm pair are arranged between the two arms forming one arm pair.
  • the workpiece can be heated from the entire circumference, the workpiece can be uniformly heat-treated, and the measures against the hot elongation of the mechanism can be improved.
  • FIG. 1 is an explanatory diagram for explaining a chain-type transport device according to the present embodiment, where (a) is a plan view showing a part of the chain-type transport device in the transport direction, and (b) is a view taken along line BB in FIG. FIG. It is a partially exploded perspective view which shows the structure of the chain type conveying apparatus which concerns on this embodiment.
  • FIG. 2 is a partial cross-sectional view taken along line AA in FIG. It is a perspective view which shows the structure of the roller chain of the chain type conveying apparatus shown in FIG. It is a figure which shows the sprocket periphery of the drive side of the chain type conveying apparatus which concerns on this embodiment.
  • a chain type conveying device for conveying the inside of a heat treatment furnace to heat-treat a gear with a shaft as a workpiece
  • the interior of the heat treatment furnace is made an atmosphere of uniform temperature by a heater and a circulation fan (both not shown) installed therein.
  • the chain type conveying apparatus 1 As shown in FIG. 1 to FIG. 3, the chain type conveying apparatus 1 according to the present embodiment is arranged at intervals in a direction intersecting with the conveying direction (hereinafter referred to as the intersecting direction) and extends along the conveying direction.
  • Two rails 2 a pair of endless roller chains 3 that are guided by each rail 2 and move on each rail 2, a plurality of spanning rods 4 spanned between the pair of endless roller chains 3, and auxiliary And a pipe 23.
  • the roller chain 3 is separated from each other between two opposed inner plates 5 by two cylindrical bushes 7 into which two rollers 6 are inserted.
  • the two inner plates 5 are connected to the bush 7 and are provided with through-holes 8 therethrough, and two adjacent inner links.
  • 9 has two shaft portions 10 inserted into one of the bushes 7, and a plurality of outer links 12 each connecting the two shaft portions 10 with an outer plate 11 are connected to each other to be endless. ing.
  • the two shaft portions 10 are each extended in a direction in which the two roller chains 3 face each other, and the two shaft portions 10 included in the outer link 12 correspond to protruding rods.
  • the shaft portion 10 is a stepped pin that is inserted from one side of the roller chain 3 and protrudes to the opposite side (indicated by ⁇ in the figure), and then crimped (indicated by ⁇ in the figure).
  • the shaft portion 10 itself can also be rotated so that the inner plate 5 and the outer plate 11 can be bent while sandwiching the entire inner link 9 and outer link 12 (indicated by ⁇ in the figure).
  • the two rails 2 are configured such that a plate-like rail body 14 is provided on a pedestal 13 so as to stand vertically along the transport direction.
  • the thickness of the plate-like rail body 14 is narrower than the distance between the inner plates 5 of the inner links 9 constituting the roller chain 3.
  • the two roller chains 3 are wound around a sprocket 15 provided on the end side of each rail 2 and driven by a driving device (not shown) provided with the sprocket 15.
  • the roller 6 rolls on the rail 2 while being guided by the opposed inner plate 5 and outer plate 11 while the roller 6 rolls.
  • a guide 22 is provided on the outer peripheral side of the sprocket 15 at the end of the chain type conveying device 1.
  • a spanning rod 4 is spanned on each of the shaft portions 10 provided on the two roller chains 3 and extending opposite to each other, and the span is spanned between the two roller chains 3.
  • the transfer rods 4 are arranged at equal intervals in the transport direction. Further, an auxiliary pipe 23 for temperature adjustment is disposed between the spanning rods 4.
  • Each bridging rod 4 has a cylindrical shape penetrating in the longitudinal direction, and two shaft portions 10 facing each other are inserted from both ends.
  • One of the two shaft portions 10 inserted in the spanning rod 4 is connected together with the spanning rod 4 by a split pin 17 penetrating in the diameter direction of the spanning rod 4, and the other is a rail.
  • the shaft portion 10 is engaged so as to be movable in the insertion / removal direction in a state where it is not restricted by 2 or the like, that is, in a state having a gap S as shown in FIG.
  • forms the cylinder shape is equivalent to an insertion part.
  • the auxiliary pipe 23 also has the same mounting structure as the spanning rod 4.
  • the plurality of connecting rods 4 and the auxiliary pipes 23 provided between the two roller chains 3 are different in the side where the ends connected by the split pins 17 between the adjacent connecting rods 4 and the auxiliary pipes 23 are located. To do. That is, the plurality of spanning rods 4 and the auxiliary pipes 23 arranged in the transport direction are alternately arranged with the bridging rods 4 and the auxiliary pipes 23 connected by the split pins 17 on one end side. ing.
  • the bridge rod 4 and the auxiliary pipe 23 are movable on one side in the insertion / removal direction, even if the bridge rod 4 and the auxiliary pipe 23 are heated and extended due to heating in the heat treatment furnace, they Since it can be absorbed by the movement, the hot elongation does not affect the driving of the roller chain 3.
  • Each bridging rod 4 has a workpiece (an exemplary gear) W that is transported in a unified manner on either the front side or the rear side of the two shaft portions 10 of the outer link 12 in the transport direction.
  • a plurality of arms 18 on which are mounted is rotatably provided.
  • the arm 18 is a plate-like member in which one end portion in the longitudinal direction is rotatably provided on the bridge rod 4.
  • the arm 18 is welded to the bridge rod 4 (indicated by D in the figure), so that all the arms 18 can be simultaneously rolled.
  • the arm 18 (18c, 18d) which is rotated with the shaft portion 10 of the chain 3 or halved by processing the groove 16 in the bridge rod 4 as shown in FIGS. 8 (b) and 8 (c).
  • the arm 18 can be individually rotated by being sandwiched between the two and welded with the both inserted into the groove 16 (indicated by F in the figure).
  • the position in the crossing direction can also be fixed.
  • the arm 18 When the roller rod 3 is driven to move the transfer rod 4, the arm 18 is arranged in the longitudinal direction along the transfer direction, and the transfer rod 4 provided with the arm 18 is rearward in the transfer direction.
  • the other end side in the longitudinal direction is placed on another bridging rod 4 provided with the arm 18 located on the side.
  • the upper edge of the arm 18 is substantially horizontal.
  • the bridging rod 4 is bridged between all the opposed shaft portions 10, but there may be a bridging rod 4 in which the arm 18 is not provided. Since the arm 18 is merely mounted on the other end side in the transport direction not attached to the shaft portion 10 without being fixed to the bridge rod 4, the arm 18 is heated in the longitudinal direction by heating in the heat treatment furnace. However, the driving of the roller chain 3 is not affected.
  • each of the arms 18 provided in each bridging rod 4 are arranged at appropriate intervals in the longitudinal direction of the bridging rod 4, that is, in the crossing direction substantially perpendicular to the transport direction. More specifically, each of the arms 18 provided on two adjacent connecting rods 4 of the connecting rods 4 provided with the arms 18 is provided on one connecting rod 4. A proximity portion 20 is arranged such that the rotation support end 18a side of the arm 18 and the placement support end 18b side of the arm 18 provided on the other spanning rod 4 are close to each other in the crossing direction. It is provided at intervals in the crossing direction.
  • each bridging rod 4 the rotation support end 18 a of one arm 18 and the mounting support end 18 b of the other arm 18 are not in contact with each other even if the bridging rod 4 extends in the crossing direction.
  • G (see FIG. 1) is provided, and the proximity portions 20 are provided at a plurality of positions at intervals in the crossing direction.
  • the adjacent part 20 in the adjacent part 20 mutually adjacent
  • the proximity portion 20a located on the most end side (for example, the left side in FIG. 1) of a certain spanning rod 4 it is on the left side of the rotation support end 18a of the arm 18 provided on the spanning rod 4.
  • the mounting support end 18b of the adjacent spanning rod 4 is located.
  • the placement support end 18b of the adjacent spanning rod 4 is positioned on the right side of the rotation support end 18a of the arm 18 provided on the spanning rod 4. Yes.
  • the placement support end 18b of the adjacent spanning rod 4 is located on the left side of the rotation support end 18a of the arm 18 provided on the spanning rod 4. Yes.
  • the plurality of adjacent portions 20 provided in the intersecting direction are provided with the rotation support end 18a of the arm 18 included in the bridge rod 4 and the placement support end 18b of the arm 18 included in the adjacent bridge rod 4. The positions are alternately interchanged.
  • the gear W is placed and conveyed on an arm pair 19 composed of two arms 18 arranged at intervals in the longitudinal direction of the bridge rod 4.
  • a plurality of arm pairs 19 are provided in the transport direction, and two arm pairs 19 adjacent in the transport direction are two arms 18 forming the other arm pair 19 between two arms 18 forming one arm pair 19. 18 is arranged.
  • the chain-type transport device 1 transports the shaft-equipped gear W for heat treatment, as shown in FIG.
  • a gear W crosses over the arm 18 and the shaft Wa can be inserted between the bridging rods 4 adjacent to each other in the conveying direction so as to be placed along the vertical direction.
  • the problem can be solved and maintained in the same posture on the plane.
  • the two arms 18 arranged across the gear W correspond to the arm pair 19, and the space H between the arm pair 19 is a guideline for placing the gear W, which is a workpiece, on the chain type conveyance device 1. It can be placed by hand or robot.
  • any gear W can be made to have uniform processing conditions.
  • the gears W on the arms 18 provided on the plurality of spanning rods 4 that move together with the roller chain 3 that is driven and circulated by the driving device are heated while being transported, and are moved to the transport device or the like in the next process. .
  • the plurality of transfer rods 4 that are bridged between a pair of roller chains 3 that are spaced apart from each other and circulate together with the pair of roller chains 3 are heat-treated. Since the arm 18 on which the gear W is mounted is provided, the portion on which the gear W is mounted is opened in the vertical direction. Since the gear W is transported on the heater 16 by the chain transport device 1, heat treatment can be performed efficiently. Further, since the portion where the gear W is placed is opened in the vertical direction, even if the gear W is provided with the axis Wa, the gear W is substantially arranged by arranging the axis Wa in the vertical direction. It is possible to arrange with the same posture. For this reason, it is possible to heat-process the some gear W mounted on the chain type conveying apparatus 1 more uniformly.
  • roller chains 3 two shaft portions 10 projecting in opposite directions are inserted into both end portions of the bridging rod 4, one end portion is fixed by the split pin 17, and the other Since the end portion is inserted so as to be relatively movable in the longitudinal direction of the bridging rod 4, even if the bridging rod 4 expands due to heat of heat treatment or contracts again after the expansion, the roller chain 3 is sprocketed. 15 or it is possible to prevent an excessive load from acting on the rail 2 or the like.
  • the transfer rod 4 can be removed simply by removing the split pin 17, so that the transfer is performed by changing the shape of the arm 18 depending on the shape of the gear (workpiece) W.
  • the rod 4 can be easily replaced.
  • the gear W can be disposed in a stable state. At this time, the arm 18 is attached to one of the two spanning rods 4 and freely rotates, so that the circulating roller chain 3 can be smoothly wound around the sprocket 15.
  • the arm 18 Since the arm 18 is pivotally attached to the bridge rod 4 at the leading end in the conveying direction, the arm 18 is suspended from the bridge rod 4 below the rail 2 by the sprocket 15. It is possible to dispose the mounting support end 18b of the arm 18 on the bridge rod 4 located on the rear side in the transport direction simply by pulling up to the upper side of the rail 2.
  • the auxiliary pipe 23 is heated and stored in a heat treatment furnace, and has an effect that the gear W can be heated uniformly by applying radiant heat to the gear (work) W from below. Depending on the distribution, it may be replaced with a different thickness.
  • the auxiliary pipe 23 does not need to be installed, and in this way, the area of the space H can be widened, and the projecting portion Wa has a large area and a long work W. Even if it exists, it can arrange
  • the pair of arms 18 on which the gear W is placed has been described.
  • the pair of arms has a rotation support end and a placement support. You may connect with the connection material 24 by the edge. In this case, it is possible to further stabilize the placement of the gear W.
  • the position where the gear W is placed is recognized as a rectangular portion formed by the pair of arms, the connecting portion, and the bridge rod. This makes it easy to automate the process of placing a workpiece such as a gear.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Tunnel Furnaces (AREA)
  • Chain Conveyers (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Heat Treatment Of Articles (AREA)
PCT/JP2017/021092 2016-09-29 2017-06-07 チェーン式搬送装置 WO2018061325A1 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016190751A JP2018052685A (ja) 2016-09-29 2016-09-29 チェーン式搬送装置
JP2016-190751 2016-09-29

Publications (1)

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WO2018061325A1 true WO2018061325A1 (ja) 2018-04-05

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JP (1) JP2018052685A (enrdf_load_stackoverflow)
WO (1) WO2018061325A1 (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021235012A1 (ja) * 2020-05-22 2021-11-25 東洋製罐グループエンジニアリング株式会社 容器搬送機構
JP2021183538A (ja) * 2020-05-22 2021-12-02 東洋製罐グループエンジニアリング株式会社 容器搬送機構
CN114890061A (zh) * 2022-06-06 2022-08-12 安徽黄山中友链条制造有限公司 一种耐高温承重网格传送链

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS514083U (enrdf_load_stackoverflow) * 1974-06-25 1976-01-13
JPS5220068U (enrdf_load_stackoverflow) * 1975-07-31 1977-02-12
JPH03113310U (enrdf_load_stackoverflow) * 1990-03-06 1991-11-19
US20100282577A1 (en) * 2009-05-08 2010-11-11 Alit S.R.L. Link of a side chain for conveyor belts
JP2013245106A (ja) * 2012-05-29 2013-12-09 Maruyasu Kikai Kk フック式搬送コンベヤ

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS514083U (enrdf_load_stackoverflow) * 1974-06-25 1976-01-13
JPS5220068U (enrdf_load_stackoverflow) * 1975-07-31 1977-02-12
JPH03113310U (enrdf_load_stackoverflow) * 1990-03-06 1991-11-19
US20100282577A1 (en) * 2009-05-08 2010-11-11 Alit S.R.L. Link of a side chain for conveyor belts
JP2013245106A (ja) * 2012-05-29 2013-12-09 Maruyasu Kikai Kk フック式搬送コンベヤ

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021235012A1 (ja) * 2020-05-22 2021-11-25 東洋製罐グループエンジニアリング株式会社 容器搬送機構
JP2021183538A (ja) * 2020-05-22 2021-12-02 東洋製罐グループエンジニアリング株式会社 容器搬送機構
JP7394700B2 (ja) 2020-05-22 2023-12-08 東洋製罐グループエンジニアリング株式会社 容器搬送機構
CN114890061A (zh) * 2022-06-06 2022-08-12 安徽黄山中友链条制造有限公司 一种耐高温承重网格传送链

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