DE102020123890A1 - Device for polishing and grinding - Google Patents

Abstract

A device (8) for polishing and grinding surfaces of a workpiece is provided, comprising: a container (2) with an opening, an abrasive material (5) for polishing or grinding and an element for moving the abrasive material (5 ) to the opening.

Description

FIELD OF THE INVENTION

The present invention relates to an apparatus for polishing and grinding surfaces of a workpiece.

BACKGROUND OF THE INVENTION

It is known in the prior art that the surface treatment of grinding and polishing can be used to shape a workpiece in its design or to free the workpiece from production residues, rust or paint residues.

SUMMARY OF THE INVENTION

Polishing or grinding deep-lying areas or contours can be difficult, especially if emery paper is used, which is more suitable for large-area surface treatment. For lower-lying surfaces or contours, a tool would be necessary with which individual surfaces can be processed in a targeted manner, without large-area processing taking place and without additional processing of areas that do not require surface treatment.

It is therefore an object of the invention to provide a device which enables selective machining of surfaces for fine machining.

As a first embodiment of the invention, there is provided an apparatus for polishing and grinding surfaces of a workpiece, comprising: a container having an opening, an abrasive material for polishing or grinding, and a member for moving the abrasive material to the opening.

Exemplary embodiments are described in the dependent claims.

According to a further exemplary embodiment of the invention, there is provided a device, the element comprising: a threaded rod, a base with an internal thread, the internal thread engaging the thread of the threaded rod, and a rotary device for imparting rotary motion to the threaded rod.

In yet another embodiment according to the invention, a device is made available, wherein the abrasive material comprises steel wool, in particular stainless steel wool, or consists of steel wool, in particular stainless steel wool.

According to an exemplary embodiment of the invention, a device is provided, wherein the abrasive material comprises Ballistol and/or plastic.

In a further embodiment according to the invention, a device is made available, wherein the abrasive material is comprised of a plastic.

Enclosing the abrasive material with plastic ensures that the abrasive material can be held in a compact form.

According to another embodiment of the present invention, an apparatus is provided wherein the abrasive material is flint, quartz, corundum, emery, garnet, natural diamond, corundum, silicon carbide, chromium oxide, cubic boron nitride, or diamond.

In a further embodiment of the invention there is provided an apparatus wherein the container and the base include complementary means to prevent the base from rotating.

According to a further embodiment of the present invention there is provided a device wherein the complementary means is a protrusion or a groove into which the protrusion engages, the groove being longitudinally directed and being arranged on the container or the base and wherein the prominence is directed longitudinally and is placed on the base or the container.

According to a further exemplary embodiment of the invention there is provided an apparatus, the element comprising: a base for transporting the abrasive material to the opening and a punch connected to the base for pushing the base to the opening.

An idea of the invention can be seen as providing a device that is suitable for grinding and polishing wooden surfaces, ornaments, internal edges and similar places that are difficult to access or require careful processing. In particular, the device according to the invention can be used to compress and enclose the steel wool.

The individual features can, of course, also be combined with one another, which in some cases can also result in beneficial effects that go beyond the sum of the individual effects.

character list

• 1 eine erfindungsgemäße Vorrichtung mit einem rechteckförmigen oder quadratischen Querschnitt des Behälters 2,
• 2 dieselbe erfindungsgemäße Vorrichtung in einer perspektivischen Darstellung mit der Drehvorrichtung 4, die mit der Gewindestange 3 fest verbunden ist,
• 3 eine alternative Ausführungsform der Erfindung mit einem runden Querschnitt des Behälters 2,
• 4 ein Querschnitt der Ausführungsform der 3 mit Hervorhebungen 9, die in Nuten des Sockels 6 eingreifen, um ein Mitdrehen des Sockels 6 zu verhindern und
• 5 eine alternative Ausführungsform der Erfindung mit einem Stempel 7 zum Erzeugen des Vorschubs zum Transportieren des abrasiven Materials 5 zur Öffnung des Behälters 2.

Further details and advantages of the invention become clear from the exemplary embodiments illustrated in the drawings. Show it

• 1 a device according to the invention with a rectangular or square cross-section of the container 2,
• 2 the same device according to the invention in a perspective view with the rotary device 4, which is firmly connected to the threaded rod 3,
• 3 an alternative embodiment of the invention with a round cross-section of the container 2,
• 4 a cross section of the embodiment of FIG 3 with embossments 9, which engage in grooves of the base 6 to prevent the base 6 from turning and
• 5 an alternative embodiment of the invention with a stamp 7 for generating the feed for transporting the abrasive material 5 to the opening of the container 2.

DETAILED DESCRIPTION EXEMPLARY

EMBODIMENTS

1 shows a device according to the invention with a base element 1, in which a rotating device 4 is arranged, through which a threaded bolt 3 can be set in rotation. A block of material 5 can be displaced within a container 2 by rotating the threaded bolt 3 , in particular to the front opening of the container 2 . The block of material 5 consists, for example, of steel wool, high-grade steel wool, and the steel wool or high-grade steel wool can be used in any desired fiber strength. In a particular embodiment, the steel wool can be in a compressed form.

2 shows a perspective representation of the device 8 according to the invention with the container/container 2 in which the abrasive material 5 is arranged. Advantageously, the abrasive 5 is pressed as a block that can be moved within the container 2 to the opening, so that abrasive material 5 can always be arranged at the opening. The abrasive material is pushed to the opening with a threaded rod 3 , with a base/carriage/cart 6 having an internal thread which meshes with the external thread of the threaded rod 3 . The threaded rod 3 can be turned with a turning mechanism/device 4, whereby the base is shifted towards the opening of the container 2, thereby conveying the abrasive material 5 towards the opening as well. The rotating mechanism/rotating device 4 is therefore firmly connected to the threaded rod 3 so that a feed is generated by the base and the abrasive material 5 can be conveyed to the opening of the container 2 . If the container 2 is rectangular or square in cross-section, there is also no risk that a suitable rectangular or square base will not mesh with the threaded rod 3, but will instead rotate and thus not fulfill its function of generating a feed for transporting the abrasive material 5 .

3 shows a device according to the invention with a container 2, which has a round or circular cross-section. In this case, the base 6 must be guided so that the base 6 does not rotate when the rotary device 4 rotates, as a result of which the threaded rod 3 is driven. Guidance can be made possible in that the base has a prominence which engages in a groove of the container 2 directed in the longitudinal direction. Alternatively, the base 6 can be prevented from rotating as well in that the container 5 has a protrusion on its inside which is directed in the longitudinal direction and which engages in a groove of the base 6 .

4 shows a cross section of the container 2 of the embodiment of FIG 3 , wherein highlights 9 are shown, which can prevent the base 6 from rotating.

5 shows an alternative embodiment with a stamp 7 which can press the base 6 in the container 2 to open the container 2. FIG.

It is noted that the term "comprising" does not exclude other elements or steps, just as the terms "a" and "an" do not exclude multiple elements and steps.

The reference numbers used are for convenience only and should not be taken as limiting in any way, the scope of the invention being indicated by the claims.

Reference List

1

base element/base

2

container/container

3

Threaded bolt/threaded rod

4

Turning Device/Turning Mechanism

5

rubbing/abrasive material

6

moveable base/trolley

7

rubber stamp

8th

Device for polishing or grinding

9

Highlight to prevent rotation of the base or dolly

Claims (9)

Device (8) for polishing and grinding surfaces of a workpiece, comprising: a container (2) with an opening, an abrasive material (5) for polishing or grinding and an element for moving the abrasive material (5) towards the opening. Device (8) after claim 1 wherein the element comprises: a threaded rod (3), a base (6) with an internal thread, the internal thread engaging in the thread of the threaded rod (3), and a rotary device (4) for imparting rotary motion to the threaded rod (3). Device (8) according to one of Claims 1 or 2 , wherein the abrasive material (5) includes steel wool, in particular stainless steel wool, or consists of steel wool, in particular stainless steel wool. Device (8) according to one of the present claims, wherein the abrasive material (5) comprises Ballistol and/or plastic. Device (8) according to one of the preceding claims, wherein the abrasive material (5) is comprised of a plastic. Device (8) according to one of the preceding claims, wherein the abrasive material (5) is flint, quartz, corundum, emery, garnet, natural diamond, corundum, silicon carbide, chromium oxide, cubic boron nitride, or diamond. Device (8) according to one of claims 2 until 6 wherein the container (2) and the base (6) have complementary means for preventing the base (6) from rotating. Device (8) after claim 7 , the complementary means being a protrusion (9) or a groove in which the protrusion (9) engages, the groove being directed longitudinally and being arranged on the container (2) or the base (6) and the Emphasis is directed in the longitudinal direction and is arranged on the base (6) or the container (2). A device according to any one of the preceding claims, wherein the element comprises: a base (6) for transporting the abrasive material (5) to the opening and a punch (7) connected to the base (6) for pushing the base (6) to open.

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