US3436874A - Method of grinding profiles - Google Patents

Method of grinding profiles Download PDF

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Publication number
US3436874A
US3436874A US576900A US3436874DA US3436874A US 3436874 A US3436874 A US 3436874A US 576900 A US576900 A US 576900A US 3436874D A US3436874D A US 3436874DA US 3436874 A US3436874 A US 3436874A
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United States
Prior art keywords
grinding
profile
pattern
tool
grains
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Expired - Lifetime
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US576900A
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English (en)
Inventor
Otto Betzler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Michael Weinig AG
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Michael Weinig AG
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Publication date
Application filed by Michael Weinig AG filed Critical Michael Weinig AG
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D18/00—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for

Definitions

  • the present invention relates to a method of grinding profiles, especially profile strips of wood, synthetic material, and the like, according to which a raw grinding tool is provided with a counter-profile which corresponds to the profile to be ground whereupon by means of the thus made grinding tool the profile to be ground is produced.
  • an object of the present invention to provide a method of the above-mentioned general type by means of which it will be possible to grind a profile with high precision and in a simple manner.
  • FIG. 1 illustrates in perspective view a pattern for use in connection with the method according to the present invention.
  • FIGS. 2 to 6 respectively illustrate individual steps or phases of the method according to the invention.
  • a method for grinding profiles, especially profiled strips of wood, synthetic material, and the like, according to which a raw grinding tool is provided with a counter-profile corresponding to the profile to be made whereupon the profile to be made is produced by the thus builtup raw grinding tool, is characterized in that directly upon a profiled pattern, for instance a model or a remaining piece of the profile to be ground, there is applied a grinding or abrasive layer.
  • a profiled pattern for instance a model or a remaining piece of the profile to be ground
  • the raw grinding tool consisting of a less hard synthetic material, as for instance a material known under the trademark Styropor, is by grinding provided with the counter-profile.
  • the application of the method according to the invention is economical not only with regard to the employed materials for the grinding tool but also with regard to the time required for the machining.
  • the grinding grains or abrasive layer is connected to the pattern and the tool for instance by an adhesive.
  • an adhesive In this way a safe and firm connection of the grinding grains will be assured while selectively various sizes of the grinding grains may be employed in conformity with the particular purpose involved.
  • the pattern and the grinding tool may be coated with a preferably water soluble adhesive and may subsequently be sprayed with grinding grains of a desired size.
  • the thickness of the adhesive layer can in a simple manner he so selected that the grinding grains protrude from the adhesive and are firmly held in and bonded to the adhesive.
  • a water soluble adhesive it is possible after the grinding grains become dull to remove the same from the pattern and grinding tool by merely washing the pattern and the grinding tool. By means of the washing process, also the adhesive is removed so that the pattern and the grinding tool can again be coated by an adhesive and be sprayed with grinding grains to thereby ready the pattern and tool for further use.
  • the elasticity of the material of the grinding tool is selected in conformity with the material of the profile to be ground so that in each instance a favorable grinding will be assured.
  • the grinding tools advantageously have grinding grains which become progressively finer in the feeding direction of the workpiece to be ground so that the workpiece after a coarse grinding and a smooth grinding will be provided with a fine finish grinding.
  • the granular size of the grinding grains of the successive tools may in this instance be for instance 80, 100, 150, 200.
  • the grinding tools may also without difiiculties be post-ground according to a pattern in the manner described above. In other words, if the profile by use of the tool has worn off or has been damaged, it can again be machined or sharpened (post-ground) in conformity with the invention set forth above.
  • FIG. 1 shows a pattern 1 having a profile 2 corresponding to the profile to be produced.
  • the pattern 1 may be a remaining piece of a finished profile.
  • the pattern 1 is within the range of the profile 2 provided with a thin adhesive layer 3 (FIG. 2) which may for instance be sprayed upon the pattern 1.
  • the thus coated profile 2 is then in conformity with FIG. 3 sprayed with grinding grains 4 which at least partially sink into the adhesive layer 3 and after hardening of said layer 3 will be firmly bonded and held to the pattern 1.
  • a raw grinding tool for instance in the form of a grinding disc 5, is then rotated about its axis and moved in radial direction as indicated by the arrow 7 toward the pattern 1 prepared in conformity with the steps described in connection with FIGS. 1, 2 and 3.
  • This raw grinding tool may consist for instance of a foamed polystyrol, as it is marketed under the trademark Styropor. While the grinding disc 5 is moved in the direction of the arrow 7 toward the prepared pattern 1 as shown in FIG. 4, at the same time a relative movement between the pattern 1 and the grinding tool 5 in the longitudinal direction of the pattern 1 (see arrow 6 of FIG. 1) is eifected. As a result thereof, the grinding tool 5 will be provided with a counter-profile 2a which precisely corresponds to the profile 2 of pattern 1.
  • Grinding tool 5a is now within the range of the counter-profile 2a provided with a granular layer 4a of grinding grains which in the manner described above in connection with pattern 1 and FIG. 3 is held on the grinding tool 5 by an adhesive. Consequently, after the adhesive layer 3a with the grinding grains has solidified, the thus created grinding tool 5a (FIG. 6) will then be used for grinding a workpiece 1a in order to provide the same with a profile corresponding to the counter-profile 2a. It will be appre ciated that the thus created profile in workpiece 1a will precisely correspond to the profile 2 of pattern 1.
  • FIGS. 2 to 6 the thickness of the adhesive layers 3, 3aand of the layers 4, 4a of the grinding grains has been illustrated on a somewhat larger scale than the actual size in order more clearly to show the invention.
  • a method of grinding a profile into workpieces which includes the steps of: preparing a pattern profile precisely in conformity with the eventual profile to be ground into a Workpiece, applying a layer of grinding grains directly onto the profiled surface of said pattern, pressing an unfinished tool of a hardness less than the hardness of the grinding layer thus applied to said pattern against said applied grinding grain layer while simultaneously effecting a relative movemnt between said unfinished tool and said pattern for providing said unfinished tool with a counter profile forming a negative of the profile of said grinding grain layer covered pattern, directly applying to the thus created counter profiled surface of said tool a layer of grinding grains, and by means of the thus produced counter profiled tool grinding into the workpiece to be profiled a profile corresponding to that of said pattern.
  • a method according to claim 1 which includes the steps of: applying a water soluble adhesive directly onto the profiled surface of said pattern, and subsequently spraying grinding grains onto the thus treated profiled surface of said pattern.
  • a method according to claim 1 which includes the steps of: directly applying to the counter profiled surface of the tool a water soluble adhesive, and subsequently spraying grinding grains onto the thus treated counter profiled surface of said tool.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
US576900A 1965-09-06 1966-09-02 Method of grinding profiles Expired - Lifetime US3436874A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEW0039857 1965-09-06

Publications (1)

Publication Number Publication Date
US3436874A true US3436874A (en) 1969-04-08

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ID=7602270

Family Applications (1)

Application Number Title Priority Date Filing Date
US576900A Expired - Lifetime US3436874A (en) 1965-09-06 1966-09-02 Method of grinding profiles

Country Status (9)

Country Link
US (1) US3436874A (es)
AT (1) AT268925B (es)
BE (1) BE686328A (es)
CH (1) CH470937A (es)
DE (1) DE1502664A1 (es)
DK (1) DK123852B (es)
ES (1) ES330753A1 (es)
GB (1) GB1130616A (es)
SE (1) SE328803B (es)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3593410A (en) * 1967-11-21 1971-07-20 Robert A Taylor Method for casting and finishing tools or dies
US3979859A (en) * 1974-02-19 1976-09-14 Ex-Cell-O Corporation Method of making tooth generating tool
US6790132B1 (en) * 2002-05-22 2004-09-14 Gibbs M. Slaughter, Jr. Dressing block for work surfaces
US20120231712A1 (en) * 2009-12-25 2012-09-13 3M Innovative Properties Company Method of making a grinding disk and a grinding disk
US9764449B2 (en) 2014-05-29 2017-09-19 Saint-Gobain Abrasives, Inc. Abrasive article having a core including a polymer material
CN113414660A (zh) * 2021-08-24 2021-09-21 江苏德励达新材料股份有限公司 一种异形板材切边机

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109746788B (zh) * 2019-03-12 2020-02-21 阜阳市中兴木业有限公司 一种实木加工用打磨机及其使用方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US151847A (en) * 1874-06-09 Improvement in machines for polishing moldings
US1991069A (en) * 1934-06-18 1935-02-12 Crompton & Knowles Loom Works Method of and apparatus for finishing shuttle boxes and the like in looms
US2226608A (en) * 1939-01-12 1940-12-31 Gilmore Method of reproducing form tools
US2320569A (en) * 1938-05-02 1943-06-01 Conrady Hans Treatment of worn abrasive belts
US2351842A (en) * 1940-04-19 1944-06-20 Michigan Tool Co Gear grinding machine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US151847A (en) * 1874-06-09 Improvement in machines for polishing moldings
US1991069A (en) * 1934-06-18 1935-02-12 Crompton & Knowles Loom Works Method of and apparatus for finishing shuttle boxes and the like in looms
US2320569A (en) * 1938-05-02 1943-06-01 Conrady Hans Treatment of worn abrasive belts
US2226608A (en) * 1939-01-12 1940-12-31 Gilmore Method of reproducing form tools
US2351842A (en) * 1940-04-19 1944-06-20 Michigan Tool Co Gear grinding machine

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3593410A (en) * 1967-11-21 1971-07-20 Robert A Taylor Method for casting and finishing tools or dies
US3979859A (en) * 1974-02-19 1976-09-14 Ex-Cell-O Corporation Method of making tooth generating tool
US6790132B1 (en) * 2002-05-22 2004-09-14 Gibbs M. Slaughter, Jr. Dressing block for work surfaces
US20120231712A1 (en) * 2009-12-25 2012-09-13 3M Innovative Properties Company Method of making a grinding disk and a grinding disk
US8740675B2 (en) * 2009-12-25 2014-06-03 3M Innovative Properties Company Method of making a grinding disk and a grinding disk
US9764449B2 (en) 2014-05-29 2017-09-19 Saint-Gobain Abrasives, Inc. Abrasive article having a core including a polymer material
US10213903B2 (en) 2014-05-29 2019-02-26 Saint-Gobain Abrasives, Inc. Abrasive article having a core including a polymer material
CN113414660A (zh) * 2021-08-24 2021-09-21 江苏德励达新材料股份有限公司 一种异形板材切边机
CN113414660B (zh) * 2021-08-24 2021-11-19 江苏德励达新材料股份有限公司 一种异形板材切边机

Also Published As

Publication number Publication date
BE686328A (es) 1967-02-15
DE1502664A1 (de) 1969-06-12
GB1130616A (en) 1968-10-16
DK123852B (da) 1972-08-14
SE328803B (es) 1970-09-21
CH470937A (de) 1969-04-15
AT268925B (de) 1969-02-25
ES330753A1 (es) 1967-06-16

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