U.S. patent application number 14/918588 was filed with the patent office on 2016-05-26 for diamond grinding disc.
This patent application is currently assigned to Kerong Ruan. The applicant listed for this patent is Kerong Ruan. Invention is credited to Yong'an Lv, Kerong Ruan.
Application Number | 20160144485 14/918588 |
Document ID | / |
Family ID | 52953031 |
Filed Date | 2016-05-26 |
United States Patent
Application |
20160144485 |
Kind Code |
A1 |
Ruan; Kerong ; et
al. |
May 26, 2016 |
DIAMOND GRINDING DISC
Abstract
This invention relates to a grinding tool, and more
particularly, it relates to a diamond grinding disc adapted for
grinding. The diamond grinding disc is connected to a grinder via a
post to be available for grinding a workpiece. The diamond grinding
disc comprises a grinding layer, a transition laver, a back layer,
wherein the post is a screw structure upwardly extended from the
back layer, wherein the back layer is connected to the transition
layer to form integration. The design, setting the back layer and
the transition layer as an integrated part and applying soft
material on the back layer, solves the problem that the back layer
and the transition layer are easily disconnected from each other
and prolongs the service life of the grinding disc.
Inventors: |
Ruan; Kerong; (Xiamen,
CN) ; Lv; Yong'an; (Xiamen, CN) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Ruan; Kerong |
Xiamen |
|
CN |
|
|
Assignee: |
Ruan; Kerong
Xiamen
CN
|
Family ID: |
52953031 |
Appl. No.: |
14/918588 |
Filed: |
October 21, 2015 |
Current U.S.
Class: |
451/539 |
Current CPC
Class: |
B24D 13/20 20130101;
B24D 13/147 20130101 |
International
Class: |
B24D 13/14 20060101
B24D013/14; B24D 13/20 20060101 B24D013/20 |
Foreign Application Data
Date |
Code |
Application Number |
Nov 20, 2014 |
CN |
201420699656.2 |
Claims
1. A diamond grinding disc, comprising: a grinding layer, a
transition layer, a back layer made of soft material, and a post
which is a screw structure extended upwardly from the back layer,
wherein the back layer and the transition layer form an integrated
structure, the diamond grinding disc is connected to a grinder via
the post.
2. The diamond grinding disc according to claim 1, wherein the
integrated structure is formed by hot pressing the back layer and
the transition layer; wherein the transition layer is a sheet body
made of thermal insulating material.
3. The diamond grinding disc according to claim 2, wherein the
transition layer is made of cloth.
4. The diamond grinding disc according to claim 1, wherein the
transition layer is completely covered by the back layer.
5. The diamond grinding disc according to claim 1, Wherein the
transition layer is connected to the grinding layer by an
adhesive.
6. The diamond grinding disc according to claim 2, wherein the
transition layer is completely covered by the back layer.
Description
TECHNICAL FIELD
[0001] This invention relates to a grinding tool, and more
particularly, relates to a diamond grinding disc adapted for
grinding.
BACKGROUND
[0002] FIG. 1 shows a diamond grinding disc comprising a back layer
301 and a transition layer 20 connected to back layer 301 by
adhesives. Due to the inherent vice of the adhesive, back layer 301
can be easily breaking away from transition layer 20 in the high
temperature and vibration environment during grinding. In addition,
a rigid construction is formed between back layer 301 and
transition layer 20 which is not soft and is not suitable to grind
workpiece with curved corner.
[0003] Moreover, a diameter of back layer 301 is less than that of
transition layer 20, which causes the glued contact area between
back layer 301 and transition layer 20 to be very small. As a
result, back layer 301 and transition layer 20 can be break off
easily in the contact area.
[0004] As described above, back layer 301 and transition layer 20
fail to firmly connect to each other, which seriously affects the
service life of the grinding disc. Besides, the scope of
application of the grinding disc is narrowed due to its rigid
construction.
SUMMARY OF THE INVENTION
[0005] To solve the above problems, this invention provides a
technical solution to firmly connect the back layer to the
transition layer, which prolongs the service life of the grinding
disc. Additionally, the back layer is made of soft material such
that the grinding disc can have a better softness and can be more
widely used.
[0006] A diamond grinding disc comprises a post located on its top
surface, and the diamond grinding disc is connected to a grinder
via the post to achieve the grinding on workpiece. The diamond
grinding disc further comprises a grinding layer, a transition
layer, a back layer made of soft material, wherein said post is a
screw structure extended upwardly from the back layer, wherein the
back layer and the transition layer are an integrated
structure.
[0007] Furthermore, the integrated structure is formed by hot
pressing the back layer and the transition layer. Wherein the
transition layer is a sheet body made of thermal insulating
material, as a result, the back layer can be prevented from
disconnecting from the transition layer even in the condition of
the longtime use and bad heat dissipation, thereby the service life
of the diamond grinding disc can be increased.
[0008] Furthermore, the transition layer is made of cloth.
[0009] Furthermore, the back layer covers the transition layer
completely, such that a surface of transition layer adjacent to the
back layer is completely enclosed by the back layer. As a result,
the back layer and the transition layer can stay connected even if
a large shear force is applied thereon during the high speed
rotating of the diamond grinding disc. This advantage further
prolongs the service life of the diamond grinding disc.
[0010] Furthermore, the transition layer can be any shape and any
size as long as the back layer can completely cover the whole
transition layer.
[0011] Furthermore, the transition layer is connected to the
grinding layer by adhesive.
[0012] The advantages of this invention are as follows:
[0013] In this invention, the back layer and transition layer are
an integrated structure, and the back layer has the same area as
the transition layer and the back layer is soft. Thus, the back
layer and the transition layer can be connected more firmly, and
not easy to be disconnected, and prolong the service life of the
grinding disc. At the same time, the grinding disc with softness
can be used to grind workpiece with curved corner or other
complicated workpiece, which enlarges the scope of application for
the grinding disc.
BRIEF DESCRIPTION OF THE DRAWINGS
[0014] FIG. 1 is the schematic diagram of a reference.
[0015] FIG. 2 is the schematic diagram of this invention.
DETAILED DESCRIPTION OF THE INVENTION
[0016] Hereinafter this invention is detailed described in
conjunction with the drawings.
[0017] Embodiment: referring to FIG. 2, a diamond grinding disc
comprising post 32 located on its top surface, and the diamond
grinding disc is connected to a grinder via post 32 to achieve the
grinding on workpiece. The diamond grinding disc further comprises
grinding layer 1, transition layer 2, back layer 31, wherein the
post 32 is a screw structure extended upwardly from back layer 31,
wherein the back layer 31 and transition layer 2 form an integrated
structure. The back layer is made of soft material, and transition
layer 2 is connected to grinding layer 1 via adhesive.
[0018] Referring to FIG. 2, the post 32 comprises a threaded
section. The diamond grinding disc is connected to a nut structure
of the grinder via post 32 to grinding the workpiece.
[0019] Referring to FIG. 2, the back layer 31 is connected to
transition layer 2 to form integration by hot pressing. Wherein
transition layer 2 is a sheet body made of thermal insulating
material, such that the back layer 31 is protected from
disconnecting from the transition layer 2 even in the condition of
longtime use and bad heat dissipation, as a result, the service
life of the diamond grinding disc is prolonged. Preferably, the
transition layer 2 is made of cloth.
[0020] Referring to FIG. 2, back layer 31 has the same area as
transition layer 2 so that a surface of transition layer 2 adjacent
to back layer 31 can be completely covered by back layer 31, as a
result, back layer 31 and transition layer 2 can stay connected
even if a large shear force is applied thereon during the high
speed rotating of the diamond grinding disc. This advantage further
prolongs the service life of the diamond grinding disc. The
transition layer 2 can be any shape and any size as long as
transition layer 2 can be completely covered by back layer 31.
[0021] It is to be understood that the above embodiment has been
provided only by way of a preferable exemplification of this
invention, which cannot be considered as the limited scope of this
invention. Namely, further modification and improvements thereto
are deemed to fall within the broad scope and ambit of the present
invention described herein.
* * * * *