Adjusting device for the sanding drum of a double-drum sander

Details Adjusting device for the sanding drum of a double-drum sander Adjusting device for the sanding drum of a double-drum sander

2003-06-04

2004-06-22

Hail, III, Joseph J. (Department: 3723)

Abrading

Machine

Endless band tool

C451S296000, C451S299000, C451S300000, C451S301000, C451S302000

Reexamination Certificate

active

06752706

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to an adjusting device for the sanding drum of a double-drum sander, particularly to one able to micro-adjust the rear sanding drum of a sander to move up and down to match with the size number of the emery of the front sanding drum of the sander for carrying out abrading with precision.
2. Description of the Prior Art
A conventional double-drum sander
10
, as shown in
FIG. 1
, includes a machine frame
11
, two sanding drums
12
,
13
respectively installed at the front and the rear section of the machine frame
11
and a conveyer
14
located under the two grinding drums
12
,
13
. Generally, the two sanding drums
12
,
13
have their surfaces respectively provided with coarse and fine emery to abrade an article orderly so as to achieve excellent effect of abrading of the article. Besides, to deal with articles of different thickness and control the abrading thickness of an article, the machine frame
11
of the sander
10
is provided with a hand crank
15
and a helical rod
16
connected together to be turned for adjusting the conveyer
14
to move up and down and controlling the article thereon to touch with the two sanding drums
12
,
13
to an anticipated extent.
However, the two sanding drums
12
,
13
of the conventional sander
10
are axially and fixedly assembled with the bearing
17
of the machine frame
11
. Thus, when the axles of the two sanding drums
12
,
13
are positioned at a same height, the rear sanding drum
13
, which has its surface provided with fine emery and which is impossible to be adjusted to move up and down, can hardly obtain good effect of abrading of an article. If the two sanding drums
12
,
13
are positioned with a fixed distance difference between them, the size of the emery provided on the rear sanding drum
13
still has to be changed in order to match with material of the article to be abraded or meet different requirements of the precision of abrading, equally failing to achieve excellent effect of abrading.
SUMMARY OF THE INVENTION
The objective of this invention is to offer an adjusting device for the sanding drum of a double-drum sander, which is provided between the opposite ends of the rear sanding drum and the machine frame of a sander for micro-adjusting the rear sanding drum to move up and down. The adjusting device has indicating graduations marked thereon, so that the rear sanding drum can be precisely adjusted to a most suitable height to match with the size number of the emery provided on the front sanding drum of the sander and carry out abrading with precision.


REFERENCES:
patent: 4720940 (1988-01-01), Green
patent: 5341605 (1994-08-01), Tasikas
patent: 5842913 (1998-12-01), Nemazi

Affiliated with

Also associated with

Rating

Adjusting device for the sanding drum of a double-drum sander does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Adjusting device for the sanding drum of a double-drum sander, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Adjusting device for the sanding drum of a double-drum sander will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3364785