CN212117312U

CN212117312U - Centrifugal grinding wheel

Info

Publication number: CN212117312U
Application number: CN202020618383.XU
Authority: CN
Inventors: 廖建辉
Original assignee: Shanghai Foresight Robotics Co Ltd
Current assignee: Shanghai Taoqian Automation Equipment Co ltd
Priority date: 2020-04-22
Filing date: 2020-04-22
Publication date: 2020-12-11
Anticipated expiration: 2030-04-22

Abstract

The utility model discloses a centrifugal emery wheel, include: the grinding device comprises a rotating base and a plurality of grinding parts, wherein the grinding parts are arranged along the circumferential direction of the rotating base, one end of each grinding part is rotatably connected with the rotating base, the other end of each grinding part is a free end, and a grinding surface is arranged on each free end; wherein the free end of the abrading article is subjected to an outwardly moving centrifugal force by rotating the rotating base to create a varying dressing radius and abrading force. The utility model discloses can adapt to the complicated profile of polishing that has compound shapes such as curved surface and straight line to adjustable grinding force, thereby guaranteed to arrive to effective grinding in the surface of each slight change, avoided producing the dead angle of polishing.

Description

Centrifugal grinding wheel

Technical Field

The utility model relates to a grinding (polishing) mechanical technical field especially relates to a centrifugal emery wheel.

Background

The surface of the product is ground and widely applied to various industries.

Taking the shoe manufacturing industry as an example, the sole needs to be ground, the grinding tool used is generally a grinding wheel machine, and the shape (grinding wheel radius) of the grinding wheel machine is invariable (ignoring the radius change caused by grinding wheel loss).

Referring to fig. 1, fig. 1 is a schematic cross-sectional structure of a rubber sole. As shown in fig. 1, the cross section of the rubber sole 1 is actually composed of a complex shape of a curved surface and a straight line.

The section of the sole is not only composed of a compound shape of a curved surface and a straight line, and the rubber sole can also deform to a certain extent when stressed. In the polishing of rubber soles, when the grinding wheel with an invariable shape is contacted with the surface of a sole with a complex outline, the phenomenon that all areas of the sole cannot be polished frequently occurs, so that the sole cannot be effectively ground, and the shoe manufacturing quality is influenced.

The above problems are also widespread in other industries.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the above-mentioned defect that prior art exists, provide a centrifugal emery wheel to solve the inhomogeneous problem of grinding.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

a centrifugal grinding wheel comprising: the grinding device comprises a rotating base and a plurality of grinding parts, wherein the grinding parts are arranged along the circumferential direction of the rotating base, one end of each grinding part is rotatably connected with the rotating base, the other end of each grinding part is a free end, and a grinding surface is arranged on each free end; wherein the free end of the abrading article is subjected to an outwardly moving centrifugal force by rotating the rotating base to create a varying dressing radius and abrading force.

Further, the grinding part is of a multi-layer laminated structure, and each laminated layer of the grinding part is simultaneously connected with one end of the grinding part in a rotating mode with the rotating base.

Furthermore, the rotary base is flange-shaped, a flange-shaped neck of the rotary base is provided with a mounting hole for connecting the rotary driving part, and the grinding part is arranged on the flange-shaped shoulder around the neck.

Furthermore, one end of the grinding part is rotatably connected with the rotating base through a pin shaft.

Further, the grinding part is in a straight strip shape.

Further, the abrading article is curved with a break.

Further, the bending shape of the grinding part is sickle-shaped, semi-circular arc-shaped or elliptical arc-shaped.

Furthermore, the rotating base is provided with a limit for limiting the relative rotating angle of the grinding part.

Further, the relative rotation angle is 15-25 degrees.

Further, in the multilayer laminated structure, the shape and size of each layer are the same or different.

According to the above technical scheme, the utility model discloses a design that the whole part is broken into parts, a plurality of independent abrasive articles (grinding part) are become to the grinding face split of a traditional emery wheel, and install the abrasive article on rotating basis with the normal running fit mode, make the abrasive article can the free motion for rotating basis in a certain angle of radial range, when rotating basis rotates, can make the free end of each abrasive article obtain the centrifugal force of outside motion, make the abrasive article can adapt to the arbitrary profile of polishing that has compound or irregular complex shape such as curved surface and straight line (plane). Each grinding part can be further designed into a laminated structure formed by laminating a plurality of layers of sheets, so that each slightly-changed surface of a product to be ground can be effectively ground, and the generation of grinding dead angles is avoided. And, the utility model discloses the mode that function of polishing (centrifugal force) produced is decided by the rotation of rotating base, relative rotation between grinding member and the round pin axle, makes the production key element of centrifugal force depend on this single key element of rotation of base, only needs to change rotating base's rotational speed, can control the size of grinding power, and control mode is very simple reliable. The diameter of the excircle of the grinding surface on the grinding part can be set according to the diameter of the curved surface of the ground product, so that the grinding part or the whole grinding wheel always grinds the product in a surface contact mode, and the grinding performance is improved. Furthermore, the grinding part is provided with a position limiting structure on the rotating base, so that the grinding part can control the motion (swing) track according to the designed requirement and carry out grinding operation in the designed angle range. In addition, the fixed end of the grinding part can be limited on the rotating base through the position limiting structure, and the mechanical safety protection function is realized.

Drawings

Fig. 1 is a schematic sectional structure view of a rubber sole.

Fig. 2-4 are schematic views of a centrifugal grinding wheel according to a preferred embodiment of the present invention.

Fig. 5 is a schematic view illustrating a usage state of a centrifugal grinding wheel according to a preferred embodiment of the present invention.

Detailed Description

The following describes the present invention in further detail with reference to the accompanying drawings.

In the following detailed description of the embodiments of the present invention, for the sake of clarity of the structure of the present invention, it is to be understood that the structure shown in the drawings is not drawn to scale, and is partially enlarged, deformed and simplified, and therefore the present invention is not limited thereto.

In the following description of the present invention, please refer to fig. 2-4, and fig. 2-4 are schematic structural views of a centrifugal grinding wheel according to a preferred embodiment of the present invention. As shown in fig. 2-4, the centrifugal grinding wheel of the present invention comprises: a rotating base 3 and a plurality of abrading articles 2. Wherein, the grinding parts 2 are independently and uniformly arranged on the rotating base 3 along the circumferential direction of the rotating base 3; and one end of each grinding part 2 is connected with the rotating base 3 in a rotating fit manner, the other end of each grinding part 2 is a free end, and a grinding surface for grinding a product to be ground (such as a sole) is arranged on the free end. The grinding surface is generally designed to have a cambered surface profile adapted to the product to be ground, and the diameter of the outer circle of the grinding surface can be set according to the diameter of the curved surface of the product to be ground, so that the grinding part or the whole grinding wheel always grinds the product in a surface contact manner.

The grinding members 2 may be identical or different in shape and size.

Please refer to fig. 2-3. In a preferred embodiment, each abrading element 2 is a multi-layered laminate structure, and each laminate of each abrading element 2 is simultaneously pivotally connected to the rotating base 3 by one end thereof. Furthermore, each stack of abrading elements 2 may be rotated independently of each other.

The number of layers of the multi-layer laminated structure can be increased or decreased according to different heights of different products to be ground and the thickness condition of each laminated layer of the grinding part 2.

The spin base 3 may be flange-shaped and include a raised flange neck 31 and a planar flange shoulder 32 extending outwardly from the bottom surface of the neck 31. Wherein, the flange-shaped neck 31 is provided with a mounting hole 33; the mounting hole 33 is used for connecting a rotary drive, such as a rotary shaft of a grinding wheel machine. Each abrading element 2 is arranged around the neck 31 on a flange-shaped shoulder 32.

The total height of the abrading element 2 is preferably not higher than the height of the flange neck 31.

Please refer to fig. 2-3. One end of the grinding part 2 can be connected with the rotary base 3 in a rotating way through a pin shaft 4. When the grinding part 2 is a laminated structure formed by laminating a plurality of layers of thin sheets, one end of each layer of thin sheet-shaped grinding part 2 is sleeved on the pin shaft 4 and forms rotating fit with the pin shaft 4. The upper end of the pin 4 can be locked by a nut to seal the grinding part 2 on the pin 4.

Other connection means capable of forming a rotational fit with each other may be used, but are not limited thereto.

The grinding part 2 may be a straight bar, and the grinding faces may be provided on the end face of the free end of the straight bar and the side face of the straight bar.

As a preferred embodiment, the abrading article 2 may also be curved with a turn. The curved portion has a smooth transition. For example, the curved shape of abrading article 2 may be sickle-shaped (or hook-shaped). Wherein, the rotating fulcrum is arranged on the handle part of the sickle shape, and the grinding surface can be arranged on the outer side surface of the sickle shape.

Various other suitable abrading article configurations may be used, such as, but not limited to, semi-circular arcs, elliptical arcs, or other regular or irregular configurations.

As an alternative embodiment, in the multi-layered laminated structure of the abrading article 2, the shape and size of each layer may be the same; alternatively, they may be different.

Please refer to fig. 4. The flange-shaped shoulder 32 of the rotating base 3 is also provided with a

limiting structure

51 and 52 for limiting the rotation angle of the grinding part 2 relative to the pin shaft 4. As an alternative embodiment, the limit stops 51, 52 may be two

stop structures

51, 52 arranged on both sides of the abrading article 2 and near the connecting end of the abrading article 2 and the pin 4. For example, when the abrading article 2 is sickle-shaped, the two stops 51, 52 can be arranged on both sides of the handle position of the sickle-shape. A certain included angle a is formed between the two

stoppers

51 and 52 toward the outer side of the rotating base 3 to limit the rotation angle of the grinding tool 2, so that the grinding tool 2 can control the movement (swing) trajectory according to the designed requirement, and the grinding operation can be performed within the designed angle a. For example, the included angle a may be 15 to 25 degrees, preferably 15 to 20 degrees, and most preferably 17 degrees.

The

stop

51, 52 may be configured to follow the contour of each abrading element 2 and may be further machined as a single piece to fit over the flange-shaped shoulder 32 of the rotating base 3. The

stoppers

51 and 52 may have a structure having a height corresponding to the height of the grinding material 2, and a cover plate (not shown) may be provided on the

stoppers

51 and 52 to cover the grinding material 2 and to limit the grinding material 2 within the spin base 3. Therefore, even if the pin shaft 4 is abraded due to long-term use to cause insufficient mechanical strength, the grinding part 2 cannot be separated from the grinding wheel, and the mechanical safety protection function is realized.

Please refer to fig. 5. Taking the sole of a shoe as an example, when the grinding wheel of the present invention is close to the sole of a shoe as shown in fig. 1, the free end of each laminated sheet in the grinding member 2 can be well attached to the surface of the sole to be ground under the action of centrifugal force, and different grinding outer diameter forms 21 are formed which are fully adapted to the surface profile of the sole (including the profile change due to deformation) and can be changed accordingly, instead of the invariable grinding surface shape like the conventional grinding wheel. Therefore, the utility model discloses can adapt to the demand of polishing of the product that has specific or complicated polished surface profile.

The utility model discloses during the use, install rotating basis 3 earlier on the grinding wheel machine. Then, the grinding wheel machine is started to drive the rotary base 3 to rotate, so that the grinding part 2 obtains centrifugal force moving outwards, and the grinding part 2 can adapt to the grinding profile with irregular shapes such as curved surfaces, straight lines and the like, such as soles. For example, when the right side of the sole is concave, the distal end of each laminated sheet in the grinding member 2 can be well attached to the surface of the sole to be ground by centrifugal action, and an approximately arc-shaped grinding outer diameter form 21 which can fully adapt to the surface profile of the sole is formed, so that each slightly changed surface of the sole can be effectively ground, and the grinding dead angle is avoided. Moreover, even if the surface of the sole has local deformation, the surface of the deformed part of the sole can be well attached to realize uniform grinding by utilizing the centrifugal force and the unique structure of the laminated grinding piece 2.

Meanwhile, the magnitude of the grinding force can be controlled by the rotational speed of the rotating base 3 (grinding wheel machine). The rotational speed is higher, and the centrifugal force that grinding part 2 obtained the outside motion just is big more to can adjust centrifugal emery wheel's rotational speed according to the deflection that the sole grinding takes place, form the utility model discloses the grinding radius and the grinding force of the change that the uniqueness has.

To sum up, the utility model discloses a centrifugal emery wheel can guarantee to treat that the surface of polishing each slight change on the product can both effectively grind to, has avoided the production at dead angle of polishing to but wide application in all trades to the demand of polishing of the article that have special polished surface form including shoemaking trade.

The above is only the preferred embodiment of the present invention, and the embodiments are not intended to limit the protection scope of the present invention, so that all the structural equivalents made by the contents of the specification and the drawings of the present invention can be used, and the same principle should be included in the protection scope of the present invention.

Claims

1. A centrifugal grinding wheel, comprising: the grinding device comprises a rotating base and a plurality of grinding parts, wherein the grinding parts are arranged along the circumferential direction of the rotating base, one end of each grinding part is rotatably connected with the rotating base, the other end of each grinding part is a free end, and a grinding surface is arranged on each free end; wherein the free end of the abrading article is subjected to an outwardly moving centrifugal force by rotating the rotating base to create a varying dressing radius and abrading force.

2. The centrifugal grinding wheel according to claim 1, wherein said grinding member is a multi-layer laminated structure, and each of said laminated layers of said grinding member is simultaneously in rotational connection with said rotating base at one end thereof.

3. The centrifugal grinding wheel according to claim 1 or 2, wherein said rotating base is flange-shaped, a flange-shaped neck portion of which is provided with a mounting hole for connecting a rotary drive, and said grinding member is provided on a flange-shaped shoulder portion around said neck portion.

4. The centrifugal grinding wheel according to claim 1 or 2, wherein one end of the grinding member is rotatably connected to the rotating base by a pin.

5. The centrifugal grinding wheel according to claim 1 or 2, wherein the grinding member is a straight bar.

6. The centrifugal grinding wheel according to claim 1 or 2, wherein the grinding member has a curved shape having a turning portion.

7. The centrifugal grinding wheel of claim 6, wherein the curvature of the grinding member is sickle-shaped, semi-circular arc-shaped, or elliptical arc-shaped.

8. The centrifugal grinding wheel according to claim 1 or 2, wherein the rotating base is provided with a limit for restricting a relative rotation angle of the grinding member.

9. The centrifugal grinding wheel according to claim 8, wherein the relative rotation angle is 15 to 25 degrees.

10. The centrifugal grinding wheel according to claim 2, wherein each layer has the same shape and size in the multi-layered laminated structure.