US2828586A - Arrangement for grinding the inside walls of cylindrical containers - Google Patents
Arrangement for grinding the inside walls of cylindrical containers Download PDFInfo
- Publication number
- US2828586A US2828586A US594514A US59451456A US2828586A US 2828586 A US2828586 A US 2828586A US 594514 A US594514 A US 594514A US 59451456 A US59451456 A US 59451456A US 2828586 A US2828586 A US 2828586A
- Authority
- US
- United States
- Prior art keywords
- grinding
- arrangement
- arm
- inside walls
- cylindrical containers
- Prior art date
- 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
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
- B24B21/02—Machines or devices using grinding or polishing belts; Accessories therefor for grinding rotationally symmetrical surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/36—Single-purpose machines or devices
- B24B5/40—Single-purpose machines or devices for grinding tubes internally
Definitions
- the present invention provides an arrangement for grinding the inside walls of cylindrical containers which permits the above mentioned disadvantages and drawbacks to be avoided.
- This arrangement is characterized by a grinding apparatus mounted on an arm which automatically performs a limited reciprocal movement.
- FIG. 1 is a side view of the arrangement
- Fig. 2 is a front view thereof.
- the arrangement comprises a frame a with vertical guides b in which is guided a slide 0 being vertically adjustable by means of a spindle d.
- slide c In slide c is mounted a horizontal arm e which is reciprocated via a variable ratio gearing f, the speed of this arm and thus of the grinding operation being variable.
- the movement thereof In the terminal positions of arm 2 the movement thereof is interrupted by limit switches g and dogs h which are adjustably mounted on the arm. This results in an automatic reciprocating movement of arm e.
- a grinding apparatus i of a construction known per se which is driven by an electric motor k.
- Grinding apparatus i and motor k are mounted on a cantilever lin flexible bearings m, for example by using rubber sleeves.
- the pressure under which the grinding tape 0, which is trained over a wheel n, is urged against the interior wall p of the drum, depends on the dead load of apparatus i and motor k. This pressure may be still further increased, also during the grinding operation, by angularly moving about its own axis the cantilever l on which are disposed the flexible bearings m, by means of a handwheel q.
- the drum wall is constructed of circularly rolled sheets, and consequently the drum inside diameter is not absolutely uniform.
- the grinding tape 0 By virtue of mounting the grinding apparatus i in the flexible bearings m, however, the grinding tape 0 nevertheless can adapt itself to these deviations from the theoretical diameter.
- the pressure of the grinding apparatus on the drum wall acts downwardly and is accommodated by the rolls r of a drum-rotating device s of a construction known per se, which is driven by variable ratio gearing t, whereby the rate of grinding may also be varied.
- a suction device it which is only schematically shown, serves the purpose of rapidly removing the metal dust produced by the grinding operation.
- Apparatus for grinding the inside walls of cylindrical containers comprising an external support for the container to be ground, a frame adjacent said support, external vertical guides on said frame, a slide mounted on said guides, a motor and gearing mounted on said slide, a cross-arm extending on one side of said slide into the cylindrical container to be ground and mounted on said slide for limited reciprocal movement by said motor and gearing, a cantilever arm mounted on the end of said cross-arm projecting into the cylindrical container, said cantilever arm and cross-arm having parallel axes, means on said cross-arm for adjusting the distance between the axes of said cantilever arm and said cross-arm, resilient bearings on said cantilever arm, and an internal grinding apparatus and a motor therefor mounted in said resilient bearings on said cantilever arm, said grinding apparatus comprising an endless grinding belt.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Description
April 1, 1958 H. LIST ET AL 2,828,586
ARRANGEMENT FOR GRINDING THE INSIDE WALLS OF CYLINDRICAL CONTAINERS Filed June 28, 1956 ERNST GRANACHER ilniteti States Patent ARRANGEMENT FUR GRINDING THE INSIDE WALLS OF CYLINDRICAL CONTAINERS Heinz List and Friedrich Friisch, Pratteln, Switzerland, and Ernst Granacher, Sackingen, Germany, assignors to Buss A. G., Basel, Switzerland Application June 28, 1956, Serial No. 594,514
Claims priority, application Switzerland June 29, 1955 1 Claim. (Cl. 51-141) In the manufacture of chemical apparatus in particular, the necessity arises for grinding the inside walls of cylindrical containers of all kind which are made of stainless steel, since thereby the resistibilty of the material against the corrosive action of the chemical substances is considerably increased.
To such end, the walls of drums and the like have so far been ground with the aid of electrically operated and manually guided grinding means. The operator together with his grinding apparatus was positioned inside the drum and wearing a protective mask against the development of dust, had to perform this operation in a tedious and time-c0nsuming manner. Such grinding operation was expensive and even dangerous when carried out without any protective mask. The resulting grinding pattern was irregular.
The present invention provides an arrangement for grinding the inside walls of cylindrical containers which permits the above mentioned disadvantages and drawbacks to be avoided. This arrangement is characterized by a grinding apparatus mounted on an arm which automatically performs a limited reciprocal movement.
A preferred embodiment of the invention is illustrated, by way of example, in the accompanying drawing, in which- Fig. 1 is a side view of the arrangement, and
Fig. 2 is a front view thereof.
The arrangement comprises a frame a with vertical guides b in which is guided a slide 0 being vertically adjustable by means of a spindle d. In slide c is mounted a horizontal arm e which is reciprocated via a variable ratio gearing f, the speed of this arm and thus of the grinding operation being variable. In the terminal positions of arm 2 the movement thereof is interrupted by limit switches g and dogs h which are adjustably mounted on the arm. This results in an automatic reciprocating movement of arm e.
On the forward end of arm e is disposed a grinding apparatus i of a construction known per se which is driven by an electric motor k. Grinding apparatus i and motor k are mounted on a cantilever lin flexible bearings m, for example by using rubber sleeves. The pressure under which the grinding tape 0, which is trained over a wheel n, is urged against the interior wall p of the drum, depends on the dead load of apparatus i and motor k. This pressure may be still further increased, also during the grinding operation, by angularly moving about its own axis the cantilever l on which are disposed the flexible bearings m, by means of a handwheel q.
The drum wall is constructed of circularly rolled sheets, and consequently the drum inside diameter is not absolutely uniform. By virtue of mounting the grinding apparatus i in the flexible bearings m, however, the grinding tape 0 nevertheless can adapt itself to these deviations from the theoretical diameter.
The pressure of the grinding apparatus on the drum wall acts downwardly and is accommodated by the rolls r of a drum-rotating device s of a construction known per se, which is driven by variable ratio gearing t, whereby the rate of grinding may also be varied.
A suction device it which is only schematically shown, serves the purpose of rapidly removing the metal dust produced by the grinding operation.
What we claim is:
Apparatus for grinding the inside walls of cylindrical containers comprising an external support for the container to be ground, a frame adjacent said support, external vertical guides on said frame, a slide mounted on said guides, a motor and gearing mounted on said slide, a cross-arm extending on one side of said slide into the cylindrical container to be ground and mounted on said slide for limited reciprocal movement by said motor and gearing, a cantilever arm mounted on the end of said cross-arm projecting into the cylindrical container, said cantilever arm and cross-arm having parallel axes, means on said cross-arm for adjusting the distance between the axes of said cantilever arm and said cross-arm, resilient bearings on said cantilever arm, and an internal grinding apparatus and a motor therefor mounted in said resilient bearings on said cantilever arm, said grinding apparatus comprising an endless grinding belt.
References Cited in the file of this patent UNITED STATES PATENTS 2,279,782 Fowler Apr. 14, 1942 2,445,391 Elmes et a1. July 20, 1948 2,470,221 Mott May 17, 1949 2,768,481 Thomasco Oct. 30, 1956
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH2828586X | 1955-06-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
US2828586A true US2828586A (en) | 1958-04-01 |
Family
ID=4572091
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US594514A Expired - Lifetime US2828586A (en) | 1955-06-29 | 1956-06-28 | Arrangement for grinding the inside walls of cylindrical containers |
Country Status (1)
Country | Link |
---|---|
US (1) | US2828586A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3116572A (en) * | 1959-06-30 | 1964-01-07 | Hi Lite Polishing Machine Comp | Apparatus for polishing articles |
US4229908A (en) * | 1978-06-01 | 1980-10-28 | Breda Termomeccanica S.P.A. | Apparatus for automatic joint machining in heavily thick cylinders |
FR2575097A1 (en) * | 1984-12-21 | 1986-06-27 | Rectification Cylindrique Fse | VARIABLE DOOR-A-FINGER PIN FOR A MACHINE TOOL |
US6001006A (en) * | 1996-12-31 | 1999-12-14 | Societedes Procedeset Machines Speciales | Machine for machining internal surfaces of axisymmetric workpieces using an abrasive strip |
WO2002024406A1 (en) * | 2000-09-20 | 2002-03-28 | Suomen Säiliöhionta Oy | Device for conditioning inner surface of chemical tank by grinding |
US20070037497A1 (en) * | 2005-08-09 | 2007-02-15 | Work Co., Ltd | Plating removing apparatus for two-piece wheel |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2279782A (en) * | 1938-02-12 | 1942-04-14 | Bert F Fowler | Surface finishing apparatus |
US2445391A (en) * | 1946-09-04 | 1948-07-20 | Walter L Ryman | Grinding machine |
US2470221A (en) * | 1945-04-02 | 1949-05-17 | Int Harvester Co | Apparatus for and method of dressing cylindrical surfaces |
US2768481A (en) * | 1954-08-13 | 1956-10-30 | Paul R Thomasco | Belt sander attachment |
-
1956
- 1956-06-28 US US594514A patent/US2828586A/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2279782A (en) * | 1938-02-12 | 1942-04-14 | Bert F Fowler | Surface finishing apparatus |
US2470221A (en) * | 1945-04-02 | 1949-05-17 | Int Harvester Co | Apparatus for and method of dressing cylindrical surfaces |
US2445391A (en) * | 1946-09-04 | 1948-07-20 | Walter L Ryman | Grinding machine |
US2768481A (en) * | 1954-08-13 | 1956-10-30 | Paul R Thomasco | Belt sander attachment |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3116572A (en) * | 1959-06-30 | 1964-01-07 | Hi Lite Polishing Machine Comp | Apparatus for polishing articles |
US4229908A (en) * | 1978-06-01 | 1980-10-28 | Breda Termomeccanica S.P.A. | Apparatus for automatic joint machining in heavily thick cylinders |
FR2575097A1 (en) * | 1984-12-21 | 1986-06-27 | Rectification Cylindrique Fse | VARIABLE DOOR-A-FINGER PIN FOR A MACHINE TOOL |
EP0188982A1 (en) * | 1984-12-21 | 1986-07-30 | Societe De Rectification Cylindrique Francaise S.R.C.F. | Machine tool spindle with a variable inclination |
US6001006A (en) * | 1996-12-31 | 1999-12-14 | Societedes Procedeset Machines Speciales | Machine for machining internal surfaces of axisymmetric workpieces using an abrasive strip |
WO2002024406A1 (en) * | 2000-09-20 | 2002-03-28 | Suomen Säiliöhionta Oy | Device for conditioning inner surface of chemical tank by grinding |
US20070037497A1 (en) * | 2005-08-09 | 2007-02-15 | Work Co., Ltd | Plating removing apparatus for two-piece wheel |
US7371158B2 (en) * | 2005-08-09 | 2008-05-13 | Work Co., Ltd. | Plating removing apparatus for two-piece wheel |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2828586A (en) | Arrangement for grinding the inside walls of cylindrical containers | |
US1927330A (en) | Sanding machine | |
US2769280A (en) | Grinding apparatus, particularly for grinding billets and the like | |
GB1443118A (en) | Vibratory bar feeder for machine tools | |
GB1228543A (en) | ||
US3654739A (en) | Belt grinding or polishing machine | |
GB1292986A (en) | Grinder and method of grinding | |
GB615492A (en) | Improvements in or relating to machines for grinding the ends of coiled springs | |
US3452483A (en) | Grinding machines | |
US2790235A (en) | Knife sharpening mechanism | |
US4018007A (en) | Apparatus for grinding surface portions of thick plates | |
US2504219A (en) | Fleshing machine | |
GB1071696A (en) | Improvements relating to the vibratory finishing of workpieces | |
US476938A (en) | Device for grinding the blades of rotary cylinders | |
US1319301A (en) | Rubber slicing machine | |
US1747809A (en) | Rotary feeder | |
SU128430A1 (en) | Sheet Roller | |
US3159067A (en) | Cutting device having work feed means oscillated by reciprocating die | |
CH330934A (en) | Device for grinding the inner wall of cylindrical containers | |
EP0191506A3 (en) | Device for sanding and/or for dressing wood articles | |
US2088578A (en) | Putting-out machine | |
US1117227A (en) | Machine for dressing hides, skins, and the like. | |
KR960008692Y1 (en) | Feeding apparatus for processing the tip of fishing rods | |
SU107302A1 (en) | The device for sharpening of edges of knives of a drum of the silo combine | |
SU112031A1 (en) | Product Marking Device |