Information
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Patent Grant
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6743084
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Patent Number
6,743,084
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Date Filed
Friday, April 25, 200321 years ago
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Date Issued
Tuesday, June 1, 200420 years ago
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Inventors
-
Original Assignees
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Examiners
Agents
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CPC
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US Classifications
Field of Search
US
- 451 178
- 451 167
- 451 184
- 451 65
- 451 311
- 451 168
- 451 109
- 451 110
- 451 120
- 451 57
- 451 296
- 451 299
- 451 300
- 144 11
- 144 31
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International Classifications
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Abstract
An emery polishing machine is provided with plural adjusting devices positioned between the opposite shaft ends of two emery polishing wheels and machine box. The adjusting devices enable the two emery-polishing wheels to be micro-adjusted to move upward and downward independently. Emery paper tapes of different-sized sands can be fitted on the two emery-polishing wheels to carry out rough and fine polishing at the same time. Two dust-collecting pipes are provided at one side of the dust-preventing cover of the machine box, and plural rollers are provided on the dust-preventing cover. Thus, after a wooden board has one side polished, it can be turned over and directly placed on the rollers on the dust-preventing cover to be moved in a feeding opening to have the other side polished. Thus a wooden board is quickly moved with less force and less space.
Description
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to an emery-polishing machine, particularly to one applicable to carpentry.
2. Description of the Prior Art
A conventional emery-polishing machine
10
for carpentry, as shown in
FIG. 1
, includes a machine box
11
provided with a conveyer
12
for carrying a work to be polished. An emery-polishing unit
13
consisting of two emery-polishing wheels
131
is provided above the conveyer
12
and driven by a motor (not shown) to actuate the two emery polishing wheels
131
to rotate. Each emery-polishing wheel
131
is fitted with an emery paper tape
131
A on the circumferential surface for polishing the surface of a wooden board. Besides, the machine box
11
is provided with plural dust-collecting pipes
111
positioned above the two emery-polishing wheels
131
and connected with a dust-collecting device for preventing dust from floating about. The conventional emery-polishing machine
10
has a function of polishing the surfaces of a wooden board, but it has some defects described below.
1. The two emery polishing wheels
131
are fixedly positioned, impossible to be adjusted in height, therefore only emery paper tape
131
A of same-sized sands can be attached on the emery polishing wheels
131
for use. If emery paper tape
131
A of different-sized sands are simultaneously attached on the two emery-polishing wheels
131
for use, the comparatively thin emery paper tape
131
A of fine sands will fail to contact the surface of a wooden board to carry out polishing. Under the circumstances, to polish the surface of a wooden board, the emery polishing wheels
131
of the emery-polishing machine
10
have to be first attached thereon with coarse-sand paper tapes
131
A for carrying out rough polishing. Subsequently, the coarse-sand paper tapes
131
A are replaced with fine-sand paper tapes
131
A and the conveyer
12
is adjusted in height for carrying out fine polishing, thus wasting mach time in replacing the emery paper tapes
131
A repeatedly, lowering working efficiency and increasing cost.
2. The emery polishing machine
10
can only carry out polishing on one side of a wooden board at a time. To have the opposite side polished, the wooden board has to be turned over and moved to the feeding opening
14
a new for carrying out polishing, and when moved to the feeding opening
14
, the wooden board has to by-pass one side of the emery polishing machine
10
because plural dust-collecting pipes
111
are positioned on top of the emery polishing machine
10
, thus taking much labor and space.
SUMMARY OF THE INVENTION
A main objective of the invention is to offer an emery-polishing machine able to have its emery polishing wheels micro-adjusted to move upward and downward independently. Thus, the two emery-polishing wheels can be fitted thereon with emery paper tapes of different-sized sands according to practical needs to carry out rough and fine polishing on a wooden board at one round of conveying, able to heighten working efficiency.
Another objective of the invention is to offer an emery polishing machine having two dust-collecting pipes provided at one side of its dust-collecting cover above two emery polishing wheels, and having plural units of rollers provided on the dust-collecting cover. Thus, after polished on one side, a wooden board can be turned over and directly placed on the rollers to be slidably moved to a feeding open in g for carrying out polishing on the opposite side, able to transport a wooden board quickly with less force.
BRIEF DESCRIPTION OF DRAWINGS
This invention will be better understood by referring to the accompanying drawings, wherein:
FIG. 1
is a perspective view of a conventional emery-polishing machine:
FIG. 2
is a perspective view of an emery-polishing machine in the present invention:
FIG. 3
is a side view of the emery-polishing machine in the present invention:
FIGS. 4A and 4B
are side cross-sectional views of the adjusting device of the emery polishing machine in the present invention, indicating a micro-adjusting condition:
FIG. 5
is a partial side cross-sectional view of the emery-polishing machine in the present invention: and
FIG. 6
is partial front cross-sectional view of the emery-polishing machine in the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
A preferred embodiment of an emery polishing machine in the present invention, as shown in
FIGS. 2 and 3
, includes a machine box
21
, a conveyer
22
, an emery polishing unit
23
and plural adjusting devices
24
as main components combined together.
The conveyer
22
is provided in the machine box
21
, and the emery-polishing unit
23
is located above the conveyer
22
. The polishing unit
23
is composed of a motor
231
and two emery polishing wheels
232
. Thus, a wooden board can be carried by the conveyer
22
to be positioned beneath the two emery-polishing wheels
232
to be polished. The machine box
21
is provided on one end of the topside with two dust-collecting pipes
212
C connected with a dust-collecting device for collecting dust and preventing dust from floating about.
The adjusting devices
24
are respectively provided between the opposite shaft ends of the two emery polishing wheels
232
and the inner wall of the machine box
21
. Each adjusting device
24
, as shown in
FIG. 4
, consists of a fixing base
241
, a bearing base
242
, an adjusting bolt
243
and a resisting bolt
244
. The fixing base
241
is positioned in a slightly slanting condition and secured on the opposite inner walls of the machine box
21
, having a slide groove
241
A for the bearing base
242
to slide therein. Each emery-polishing wheel
232
has its opposite shaft ends received in the bearing base
242
, which can slide a little slantingly in the slide groove
241
A. The adjusting bolt
243
is orderly screwed through the fixing base
241
, the left wall of the slide groove
241
A and the left wall of the bearing base
242
for adjusting and positioning the bearing base
242
. The resisting bolt
244
is screwed through the fixing base
241
and the right wall of tie slide groove
241
A for firmly pushing against the bearing base
242
.
Further the opposite inner walls of the machine box
21
, which respectively face the opposite shaft ends of each emery polishing wheel
232
, are respectively carved with a long accommodating groove
211
for facilitating the opposite shaft ends of the emery polishing wheels
232
to be inserted and moved therein.
In addition, a dust-preventing cover
212
able to be turned open is pivotally provided on the topside of the machine box
21
, having two dust-receiving grooves
212
A formed under the inner wall facing the upper outer circumferences of the two emery polishing wheels
232
, as shown in
FIGS. 5 and 6
. Each dust-receiving groove
212
A formed at one side with a sucking opening
212
B communicating with the dust-collecting pipe
212
C. The dust-preventing cover
212
is further pivotally provided with plural units of not-powered rollers
212
D.
Furthermore, a tightening nut
245
is provided between the adjusting bolt
243
and the fixing base
241
for stabilizing the adjusting bolt
243
to prevent it from becoming loose and affecting the bearing base
242
after the adjusting bolt
243
is adjusted and positioned.
As can be noted from the above description, this invention has some advantages described below.
1. The adjusting devices
24
respectively positioned between the opposite shaft ends of the emery polishing wheel
232
and the machine box
21
are able to micro-adjust the bearing base
242
to move upward and downward, as shown in FIG.
4
. During micro adjusting, the order of turning around the adjusting bolt
243
and the resisting bolt
244
is decided by the location and the moving condition of the bearing base
244
. When the adjusting bolt
243
actuates the bearing base
242
to move and be positioned, the tightening nut
245
and the resisting bolt
244
are turned tightly so as to prevent the bearing base
242
from becoming loose and sliding off.
2. The bearing base
242
of the adjusting device
24
is positioned in a slightly slanting condition, therefore the two emery polishing wheels
232
can be adjusted to move upward and downward accurately, having excellent effect of micro-adjusting. Besides, since the two emery-polishing upward and downward, their emery paper tapes
232
A of different-sized sands can simultaneously carry on rough and fine polishing at the same time.
3. The two dust-collecting pipes
212
C are provided at one side of the dust-preventing cover
212
, and plural units of rollers
212
D are positioned on the topside of the dust-preventing cover
212
, as shown in FIG.
5
. Thus, after a wooden board has one side polished, it can be turned over and directly placed on the rollers
212
D to be slidably moved forward and then pushed in the feeding opening for polishing oil the other side, able to transport a wooden board quickly with less labor, needless to take much space and increasing processing efficiency.
4. The two dust-receiving grooves
212
A respectively formed above the two emery polishing wheels
232
are able to control the dust produced by polishing a wooden board in the interior space of the dust-receiving grooves
212
A, and then the dust is sucked in the dust-collecting pipes
212
C through the sucking opening
212
B and finally gathered in the dust-collecting device, having perfect effect of dust collecting. Besides, the two dust-collecting pipes
212
C positioned at one side of dust-preventing cover
212
will never obstruct the wooden board to be transported after it is turned over.
While the preferred embodiment of the invention has been described above, it will be recognized and understood that various modifications may be made therein and the appended claims are intended to cover all such modifications that may fall within the spirit and scope of the invention.
Claims
- 1. An emery polishing machine comprising a machine box, a conveyer and an emery polishing unit, said emery polishing unit composed of a motor and two emery polishing wheels, said conveyer carrying a wooden board into a feeding opening and positioning it beneath said two emery polishing wheels to be polished, said machine box provided at the topside with two dust-collecting pipes connected with a dust-collecting device, said dust-collecting pipes and said dust-collecting device preventing the dust produced by polishing a wooden board from adjusting about: and,characterized by plural adjusting devices respectively provided between the opposite shaft ends of each said emery polishing wheel and said machine box, each said adjusting device consisting of a fixing base, a bearing base, an adjusting bolt and a resisting bolt, said fixing base positioned in a slightly slanting condition and secured on the opposite inner walls of said machine box, said fixing base formed with a slide groove for said bearing base to slide therein, said bearing bases receiving and fixing the opposite shaft ends of said emery polishing wheels, said two emery polishing wheels able to be micro-adjusted to move a little slantingly together with said bearing base, said adjusting bolt screwed orderly through the left wall of said slide groove of said fixing base and the left wall of said bearing base, said adjusting bolt able to adjust and position said bearing base, said resisting bolt screwed through the right wall of said slide groove of said fixing base, said resisting bolt tightly pushing against said bearing base: said machine box carved with a long accommodating groove at the opposite inner walls respectively facing the opposite shaft ends of said two emery polishing wheels, said two long accommodating grooves facilitating the opposite shaft ends of said emery polishing wheel to be inserted and moved therein: said machine box pivotally provided with a dust-preventing cover on top, said dust-preventing cover formed with two dust-receiving grooves under the inner wall, said two dust-receiving grooves respectively facing the upper outer circumferences of said two emery polishing wheels, each said dust-receiving groove formed with a sucking opening at one side, said sucking opening communicating with said dust-collecting pipe, said dust-preventing cover further pivotally provided with plural units of not-powered rollers on top.
- 2. The emery polishing machine as claimed in claim 1, wherein a tightening nut is provided between said adjusting bolt and said fixing base for stabilizing said adjusting bolt and preventing it from becoming loose after it is turned and positioned.
US Referenced Citations (6)