US3604158A - Apparatus for treating cylindrical workpieces - Google Patents

Apparatus for treating cylindrical workpieces Download PDF

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Publication number
US3604158A
US3604158A US798370A US3604158DA US3604158A US 3604158 A US3604158 A US 3604158A US 798370 A US798370 A US 798370A US 3604158D A US3604158D A US 3604158DA US 3604158 A US3604158 A US 3604158A
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United States
Prior art keywords
workpieces
workpiece
guide rolls
spaced
rolls
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Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
US798370A
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English (en)
Inventor
Robert L Daffron
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Wheelabrator Corp
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Wheelabrator Corp
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Publication date
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Publication of US3604158A publication Critical patent/US3604158A/en
Assigned to SIGNAL APPLIED TECHNOLOGIES INC., A CORP OF DELAWARE reassignment SIGNAL APPLIED TECHNOLOGIES INC., A CORP OF DELAWARE MERGER (SEE DOCUMENT FOR DETAILS). EFFECTIVE ON 03/29/1985 DELAWARE Assignors: WHEELABRATOR-FRYE INC.
Assigned to WHEELABRATOR CORPORATION, THE reassignment WHEELABRATOR CORPORATION, THE ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: SIGNAL APPLIED TECHNOLOGIES INC.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C3/00—Abrasive blasting machines or devices; Plants
    • B24C3/08—Abrasive blasting machines or devices; Plants essentially adapted for abrasive blasting of travelling stock or travelling workpieces
    • B24C3/085—Abrasive blasting machines or devices; Plants essentially adapted for abrasive blasting of travelling stock or travelling workpieces the travelling workpieces being moved into different working positions during travelling

Definitions

  • This invention relates to the apparatus for the surface treatment of cylindrical workpieces. More particularly, it relates to improvements in that portion of such apparatus for handling such workpieces during the treatment process.
  • a surface-treating apparatus in which there is a conveyor constructed to receive spaced-apart workpieces and to advance them through a treating chamber in such a way as to maintain their spaced-apart. condition and at the same time to rotate them on the surface of the conveyor so as to expose their entire surfaces to the action of the treating material.
  • FIG. 1 is a view of a surface-treating apparatus in accordance with this invention, partially isometric and partially cut away, to illustrate the conveyor system in accordance with this invention
  • FIG. 2 is an isometric view of conveyor apparatus in accordance with this invention.
  • FIGS. 3a to 3c are views along the lines 3-3 of FIG. 2 illustrating the manner in which workpieces are delivered to the conveyor to be transported thereby;
  • FIG. 4 is a partial side view of the conveyor embodying the invention illustrating workpieces in transit thereon;
  • FIG. 5 is an end view of an alternative apparatus embodying the invention.
  • FIG. 6 is a side view of a means for advancing the workpieces in the embodiment of FIG. 5.
  • the particular treating apparatus shown takes the form of means for causing small steel shot to be propelled against the surface of the workpiece for shot peening the surface.
  • feed hopper 8 which is provided with one or more feed tubes 10.
  • feed tubes I0 enter the side of housings 12 in which are mounted for rotation and driven by suitable drive means (not shown) centrifugal blasting wheels.
  • the centrifugal blasting wheels are of conventional construction so that their detailed description is deemed to be unnecessary.
  • they may comprise bladed wheels having a plurality of blades extending radially outward from a central feed trough through which the particular treating material, such as steel shot, is introduced onto the ends of the al., while the balded wheel is rotated rapidly about its axis, whereby the treating material travels rapidly outwardly to the ends of the blades and is thrown centrifugally from the blades onto the surfaces of the workpieces. After impinging upon the surfaces of the workpieces, the treating material falls to the bottom of the treatment chamber 2 where it is transported by a conveyor (not shown) to an elevator 14.
  • a conveyor not shown
  • this embodiment of the invention provides a roll cluster 20 which includes an elongated feed means 22 which is shown extending horizontally through the treatment chamber 2 and is mounted at each of its ends for rotation about its horizontal axis by suitable fixed-bearing supports 24.
  • the roll cluster also includes in the illustrated embodiment a pair of guide rolls 26 and 28 which are mounted in a common horizontal plane a slight distance above the feed roll 22 which distance is slightly less than the diameter of a workpiece being transported.
  • the guide rolls 26 and 28 are likewise mounted at their ends in fixed-bearing supports 30 for rotation about their horizontal axis. Suitable motor drive means (not shown) are provided for all the rolls in rollcluster. As may be seen from the arrows indicating direction of rotation on the feed roll 22 and guide rolls 26 and 28 in FIG. 2, these rolls are all, arranged to be driven in the same direction.
  • the feed roll means 22 is associated with a means to move them which in this embodiment takes the form of a screw flight 32 extending along the length of its periphery.
  • the pitch of this screw flight is selected to be slightly greater than the length of a cylindrical workpiece being transported, so that an individual workpiece may be deposited in a manner to be described hereinafter within a single pitch of the screw flight and advanced by the rotation of the feed roll. In this manner the end of one workpiece will not contact another, so that ends will be continuously exposed to the action of the treating material, and in the event the workpieces take the form of coil springs they will not become tangled with each other, causing pileups or jams.
  • the guide rolls 26 and 28 are spaced a distance apart which is less than the diameter of a workpiece but which is at the same time wide enough to permit the treating material propelled by the blasting wheels to enter from the top, impinge upon the surface of the workpiece to effect its treating function, and exit to the bottom of the treatment chamber 2 to be removed therefrom.
  • the means further provided to effect the function of depositing the workpieces individually in the screw flight comprises the provision of a cutout contour or concave portion 34 provided at that end of the guide roll 26 which is deposited adjacent to the entry openings 4 of the treatment chamber.
  • This concave portion is shaped to conform to the surface of a workpiece and its dimensions and distance from the feed roll 22 is selected to be such that as the guide roll 26 rotates along with the guide roll 28, an opening will be provided once every revolution which will be large enough to permit a workpiece to pass between the guide rolls and deposited in the screw flight 32 between pitches of the flight ribbon.
  • FIGS. 3a-3c illustrate the manner in which this is done.
  • FIGS. 3a-3c illustrate the manner in which this is done.
  • dotted lines are the end views of two workpieces 36 and 38 shown in different positions depicting the path of a workpiece in the act of being deposited in the screw flight.
  • FIG. 3a a workpiece 36 has just been delivered from the delivery shoot 42 of a device for holding such workpieces and delivering them in a spaced-apart fashion.
  • the workpiece 36 is resting on top of guide rolls 26 and 28 prior to the arrival of concave portion 34 on guide roll 36.
  • FIG. 3b illustrates the workpiece 36 in the process of passing through the guide rolls 26 and 28.
  • Rotation of the guide rolls advances the concave portion 34 toward the workpiece and allows it to engage the concave portion and pass through vertically downward between the guide rolls.
  • a second workpiece 38 is held in the delivery shoot 42 ready to be deposited on to guide rolls 26 and 28.
  • workpiece 36 has passed through the guide rolls and, resting in the screw flight 32 it has been advanced along the surface of the feed roll 22 into the plane of the paper as shown in the drawing.
  • the workpiece 38 is now delivered onto the guide rolls 26 and 28 and duplicates the loading positions of workpiece 36 during the next revolution of the roll cluster 20.
  • the workpieces may be delivered individually to the concave portion 34 by a feeding device capable of aligning and spacing the working piece.
  • a feeding device capable of aligning and spacing the working piece.
  • Such devices are well known in the art and one such is sold under the trade name Syntron.”
  • This device is represented schematically at 44 in FIG. 1 and includes the delivery chute 42.
  • the delivery chute may be provided with a controlled release or escapement devices.
  • Such devices are commercially available with feeding devices of the type suggested.
  • the lower surfaces of the guide rolls 26 and 28 are spaced from the feed roll 22 by a distance slightly less than the diameter of the workpiece 36 so as to engage its upper surfaces.
  • the guide rolls function as holddown rolls and keep the workpieces from bouncing off the screw flight and feed roll.
  • they contribute to the rotation of workpieces so as to effect the exposure of the entire surface of the workpiece to the action of the treating material as it passes between the guide rolls.
  • the relative dimensions of the screw flight 32, the feed roll 22, guide rolls 26 and 28, and their spacing can be varied in order to accommodate workpieces of varied sizes.
  • a single treating machine can be provided with a plurality of roll clusters 20, in order to accommodate workpieces of different dimensions in the same treating apparatus simultaneously.
  • the roll cluster 20 may take a number of different forms.
  • a pair of spaced support rolls 46 and348 may be provided to receive a workpiece 36 after it has passed through the guide rolls 26 and 28. As may be seen in the drawing, these rolls are spaced a distance apart to support the workpiece and to provide access for the spaced fingers 50 on a conveyor chain 52.
  • the conveyor chain 52 is mounted on sprockets 54 and 56, one of which may be drivento cause movement of the conveyor chain.
  • the fingers 50 are dimensional in the vertical direction also as to engage the bottom of a workpiece and advance it through the treatment chamber They are spaced apart a sufficient distance to accommodate the length of the workpiece.
  • This embodiment operates in a similar fashion to that previously described except that the workpiece is deposited between the fingers 50 instead of in the pitch of a screw flight.
  • the rollers 46 and 48 may be driven in order to insure rotation of the workpiece and treatment of its entire surface.
  • the rotation of the concave portion 34 of the guide roll 36 must be synchronized with the movement of the fingers 50 in order that the workpiece be deposited between those fingers rather than on top of them.
  • the invention provides apparatus for transporting spaced-apart workpieces which are transported in such a manner as to insure uniform exposure of their entire surfaces to the action of the treating material without running the risk of pileups, and yet at the same time permits a continuous treating process to be carried out.
  • An apparatus for the surface treatment of cylindrical workpieces including a treatment chamber, means for introducing treating material into said chamber and removing said material therefrom, the improvements comprising: means disposed in the treatment chamber for transporting workpieces therethrough comprising means for moving the workpieces in a spaced-apart relationship through said chamber and elongated guide rolls rotatable about an axis parallel to the path of the workpieces; said guide rolls spaced a distance from each other less than the diameter of a workpiece; one of said guide rolls having at one end thereof a concave portion conforming to the periphery of a workpiece formed in a portion of this periphery; and means for feeding workpieces to said one end of guide roll to deposit workpieces in said concave portion whereby said guide rolls are rotated a workpiece is moved in said concave portion and deposited on said means for moving the workpieces and then advanced through said chamber.
  • said moving means includes a feed roll having a screw flight on the periphery with a pitch slightly greater than the length of a workpiece.
  • said means for transporting workpieces extends horizontally and comprises a pair of guide rolls and a feed roll means disposed beneath said guide rolls.
  • said driving means comprises an endless chain having a plurality of fingers extending upwardly between said spaced-apart rolls and spaced from each other a distance greater than the length of a workpiece.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Coating Apparatus (AREA)
  • Crushing And Grinding (AREA)
  • Threshing Machine Elements (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
US798370A 1969-02-11 1969-02-11 Apparatus for treating cylindrical workpieces Expired - Lifetime US3604158A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US79837069A 1969-02-11 1969-02-11

Publications (1)

Publication Number Publication Date
US3604158A true US3604158A (en) 1971-09-14

Family

ID=25173213

Family Applications (1)

Application Number Title Priority Date Filing Date
US798370A Expired - Lifetime US3604158A (en) 1969-02-11 1969-02-11 Apparatus for treating cylindrical workpieces

Country Status (10)

Country Link
US (1) US3604158A (de)
AT (1) AT293210B (de)
BE (1) BE745812A (de)
BR (1) BR6915413D0 (de)
CA (1) CA923841A (de)
CH (1) CH500814A (de)
DE (1) DE2005556B2 (de)
FR (1) FR2035216A5 (de)
GB (1) GB1228288A (de)
SE (1) SE374295B (de)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4077166A (en) * 1976-03-04 1978-03-07 Hans A. Dietiker Apparatus for continuously conveying and simultaneously turning objects of arbitrary shape and size
US4492102A (en) * 1982-11-30 1985-01-08 Rockwell International Corporation Separating and feeding system for a shot peening machine
US4599879A (en) * 1985-01-09 1986-07-15 Rockwell International Corporation Conveyor system for a shot peening machine
US4604881A (en) * 1982-11-30 1986-08-12 Rockwell International Corporation Shot peening machine
US5591066A (en) * 1994-03-15 1997-01-07 Fried. Krupp Ag Hoesch-Krupp Arrangement for ball shot peening helical compression springs
US20060154578A1 (en) * 2005-01-07 2006-07-13 Tyler Smith Baseball de-slicking apparatus and method
CN101992427A (zh) * 2009-10-07 2011-03-30 新东工业株式会社 连续式的输送机式喷丸硬化装置和喷丸硬化方法
CN101633157B (zh) * 2009-08-20 2011-12-14 刘传玲 钢材表面处理装置中的传送机构
CN104369116A (zh) * 2014-10-17 2015-02-25 无锡市新加源冶金机械制造有限公司 一种抛丸机料丸循环系统
CN111633564A (zh) * 2020-05-28 2020-09-08 松菱重工(溧阳)有限公司 一种抛丸机的除锈方法
CN113386054A (zh) * 2021-07-21 2021-09-14 安徽达必立新能源科技有限公司 一种风电塔筒喷砂输送装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1928339A (en) * 1930-09-03 1933-09-26 Harry A Mulvany Conveyer
US2154843A (en) * 1936-03-21 1939-04-18 American Foundry Equip Co Abrading apparatus
US2249677A (en) * 1940-07-11 1941-07-15 Eaton Mfg Co Apparatus for treating coil springs
US2341674A (en) * 1942-03-19 1944-02-15 Eaton Mfg Co Method of shot-blasting coil springs
US3383803A (en) * 1965-10-18 1968-05-21 Wheelabrator Corp Means for treating coil springs

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1928339A (en) * 1930-09-03 1933-09-26 Harry A Mulvany Conveyer
US2154843A (en) * 1936-03-21 1939-04-18 American Foundry Equip Co Abrading apparatus
US2249677A (en) * 1940-07-11 1941-07-15 Eaton Mfg Co Apparatus for treating coil springs
US2341674A (en) * 1942-03-19 1944-02-15 Eaton Mfg Co Method of shot-blasting coil springs
US3383803A (en) * 1965-10-18 1968-05-21 Wheelabrator Corp Means for treating coil springs

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4077166A (en) * 1976-03-04 1978-03-07 Hans A. Dietiker Apparatus for continuously conveying and simultaneously turning objects of arbitrary shape and size
US4492102A (en) * 1982-11-30 1985-01-08 Rockwell International Corporation Separating and feeding system for a shot peening machine
US4604881A (en) * 1982-11-30 1986-08-12 Rockwell International Corporation Shot peening machine
US4599879A (en) * 1985-01-09 1986-07-15 Rockwell International Corporation Conveyor system for a shot peening machine
US5591066A (en) * 1994-03-15 1997-01-07 Fried. Krupp Ag Hoesch-Krupp Arrangement for ball shot peening helical compression springs
US20060154578A1 (en) * 2005-01-07 2006-07-13 Tyler Smith Baseball de-slicking apparatus and method
CN101633157B (zh) * 2009-08-20 2011-12-14 刘传玲 钢材表面处理装置中的传送机构
CN101992427A (zh) * 2009-10-07 2011-03-30 新东工业株式会社 连续式的输送机式喷丸硬化装置和喷丸硬化方法
CN101992427B (zh) * 2009-10-07 2013-12-25 新东工业株式会社 连续式的输送机式喷丸硬化装置和喷丸硬化方法
CN104369116A (zh) * 2014-10-17 2015-02-25 无锡市新加源冶金机械制造有限公司 一种抛丸机料丸循环系统
CN104369116B (zh) * 2014-10-17 2017-09-15 盐城亿之诺机械有限公司 一种抛丸机料丸循环系统
CN111633564A (zh) * 2020-05-28 2020-09-08 松菱重工(溧阳)有限公司 一种抛丸机的除锈方法
CN111633564B (zh) * 2020-05-28 2021-11-19 松菱重工(溧阳)有限公司 一种抛丸机的除锈方法
CN113386054A (zh) * 2021-07-21 2021-09-14 安徽达必立新能源科技有限公司 一种风电塔筒喷砂输送装置

Also Published As

Publication number Publication date
GB1228288A (de) 1971-04-15
FR2035216A5 (de) 1970-12-18
SE374295B (de) 1975-03-03
DE2005556C3 (de) 1974-02-07
AT293210B (de) 1971-09-27
DE2005556A1 (de) 1970-12-17
BR6915413D0 (pt) 1973-06-26
BE745812A (fr) 1970-07-16
CA923841A (en) 1973-04-03
CH500814A (de) 1970-12-31
DE2005556B2 (de) 1973-07-12

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Legal Events

Date Code Title Description
AS Assignment

Owner name: SIGNAL APPLIED TECHNOLOGIES INC., A CORP OF DELAWA

Free format text: MERGER;ASSIGNOR:WHEELABRATOR-FRYE INC.;REEL/FRAME:004530/0016

Effective date: 19850329

Owner name: WHEELABRATOR CORPORATION, THE, INDIANA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:SIGNAL APPLIED TECHNOLOGIES INC.;REEL/FRAME:004530/0026

Effective date: 19860115