CN2279240Y

CN2279240Y - Electric abrasive finishing machine

Info

Publication number: CN2279240Y
Application number: CN 97206824
Authority: CN
Inventors: 陈祥生
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-03-27
Filing date: 1997-03-27
Publication date: 1998-04-22
Anticipated expiration: 2007-03-27

Abstract

The utility model relates to a sander. The utility model is mainly composed of a driving rubber roller, driven rollers, a machine frame, a drive pulley device, a motor and a sand belt, wherein, the driven rollers are arranged on a steering machine base, the steering machine base is inserted in the middle axle hole of the machine frame through a steering axle arranged on the lower part of the steering machine base, and directive wheels are respectively sheathed on the two sides of each of the roll axles of the driven rollers. One root of travel cable is connected to the side edge of each of the directive wheels and is fixed on the machine frame through a pullback spring, and thus, the utility model has the advantages of simple structure, convenient and reliable use and low manufacturing cost; besides, the service life of the sand belt can be extended, the processing quality of the product of the utility model can be improved, etc.

Description

Sander

The utility model relates to that a kind of surface to timber and plane non-metallic material is polished, the machinery of processing such as sanding and polishing.

Present commercially available sander, its structure mainly comprises compositions such as frame, motor, belt drive unit, active rubber roll, driven roll, abrasive band, initiatively rubber roll is parallel with driven roll is placed on the frame, be set with the abrasive band between the two, of drive roll is connected in belt drive unit and links to each other with motor shaft.Workbench also is set in addition, so that the normal input of plane timber or non-metallic material on frame.But the sander of said structure in the course of the work, is easy to generate the abrasive band and runs the limit and roll phenomenon such as band, not only damages the abrasive band prematurely, and can influence the quality of product processing.Run the limit phenomenon for solving the abrasive band, external like product adopts the photo-electric control technology, but this import sanding machinery with race limit, photo-electric control technology control abrasive band costs an arm and a leg, domestic medium-sized and small enterprises are deeply aware of one's own helplessness when faced with a great task, unable purchase, and this imported product of domestic imitation is also because the price height, and quality is unstable and be difficult to be accepted by the user.

The purpose of this utility model is in order to overcome the deficiency of above-mentioned existence, and provides a kind of mechanical type control abrasive band simple in structure, that cost is low, easy to use to run the sander on limit.

The purpose of this utility model can be achieved through the following technical solutions; Its formation comprises drive roll, driven roll, frame, driving belt wheel apparatus, motor and abrasive band.Be provided with a steering engine base on the top of frame, be mounted with driven roll on the support, each kink has directive wheel on the roll shaft of driven roll both sides, respectively is connected with a drawing rope on the directive wheel, and this drawing rope is connected on the frame by an extension spring.

Steering engine base links to each other with support by following structure, and a steering spindle is arranged at the steering engine base bottom, is provided with axis hole in the upper rack centre position, and steering spindle is plugged in the axis hole of frame and is rotatable.

About the utility model frame is provided with two tractive posts and they be each positioned at directive wheel below, there is a lasso upper end of tractive post, drawing rope pass lasso and under be connected in extension spring.

As two tractive posts about being provided with on the above-mentioned frame also can be interior sky, drawing rope in penetrating the tractive post back be built in extension spring aerial in the tractive post and join.

Accompanying drawing is a structural representation of the present utility model.

Below will the utility model is described in further detail by accompanying drawing.Bottom device in frame 1 has a motor 2, motor shaft 2 is overhanging outside frame and be fixed with a belt pulley 3, be connected in another by belt 4 and be connected in belt pulley 6 on rubber roll 5 roll shafts initiatively, belt pulley 3, belt 4 and belt pulley 6 have been formed pulley gear.Initiatively rubber roll 5 is positioned on the frame 1 by the roll shaft at two ends, the below device of this active rubber roll 5 has the delivery platform 7 of workpiece, and this delivery platform 7 is a position adjustable with respect to leading rubber roll 5, promptly after workpiece is placed into delivery platform 7, by adjusting it and the distance between the rubber roll 5 initiatively, workpiece is contacted with the abrasive band that is nested with on active rubber roll 5.The middle co-located on frame 1 top offers an axis hole 8, the steering engine base 10 that one bottom has steering spindle 9 is placed in frame 1 top by steering spindle 9 is inserted in the axis hole 8, one driven roll 11 is placed on the steering engine base 10 by the beaming roller 12 at two ends, each kink has a directive wheel 13 on the beaming roller 12 at driven roll 11 two ends, and the wheel of directive wheel 13 footpath and driven roll 11 is big or small basic identical.Be to solve the flexibility of directive wheel 13 on roll shaft 12, at the wheel of directive wheel 13 bearing is housed in the heart, and is nested with on roll shaft 12, realize mutual connection by bearing.Outer side edges at two directive wheels 13 respectively is connected with a drawing rope 14, and this drawing rope 14 is fixed on the frame 1 after connecting extension spring 15.And extension spring 15 is built in tractive post 16 hollows that are fixed on the frame 1, so that will produce tightening force preferably behind drawing rope 14 location.And the utility model also can adopt in the upper end of tractive post 16 lasso is set, and drawing rope 14 is passing lasso after extension spring 15 is connected in frame 1.Two limited posts 17 of steering engine base 10 front and back that are placed in about also being provided with on the frame 1 are to limit steering engine base 10 turned position exceedingly.Be equipped with abrasive band 18 between active rubber roll 5 and driven roll 11, for guaranteeing the rate of tension in abrasive band 18, two axle beds of active rubber roll 5 or driven roll 11 are provided with tunable arrangement, to regulate the distance between the two rollers easily.

The race limit phenomenon that the utility model adopts the guiding opinion to regulate the abrasive band, its course of work is: when the abrasive band is influenced by foeign element occur to run band and when leaving the operating position, at once drive directive wheel 13 actions of driven roll 11 1 sides, as run band toward the left side, will drive the directive wheel action on the left side, directive wheel rotates a direction position and produces pulling force with the abrasive band thereupon, by the drawing rope on the avris 14 power is passed to extension spring 15, by extension spring 15 directive wheel is affected again, rotational angle correction along with directive wheel, rotate the position that is steering engine base, forces the abrasive band to reply the operating position.Equally, run band toward the right as the abrasive band, the directive wheel by the right drives the position of steering engine base and rotates, and forces the abrasive band to reply the operating position.

Because two directive wheel effects of symmetry, make the whole piece abrasive band can occur dancing in time second one time at 2-3, this is referred to as amplitude phenomenon, it has the long life that keeps the abrasive band, reach effects such as best sanding effect to the sanding thing, therefore, the utility model has possessed the location, abrasive band simultaneously and has swung two kinds of functions.

The utility model compared with prior art, have simple in structure, low cost of manufacture, easy to use and reliable, Can prolong the service life in abrasive band, improve the characteristics such as product processing quality, have at home higher fitting on the market Use promotional value.

Claims

1. sander, it is made up of active rubber roll, driven roll, frame, driving belt wheel apparatus, motor and abrasive band, it is characterized in that the top on the frame (1) is provided with a steering engine base (10), be mounted with driven roll (11) on the support (10), respectively be equipped with directive wheel (13) on the roll shaft of driven roll (11) both sides, be connected with a drawing rope (14) on the directive wheel (13), this drawing rope is connected on the frame (1) by an extension spring (15).

2, sander as claimed in claim 1 is characterized in that a steering spindle (9) is arranged at described steering engine base (10) bottom, is provided with axis hole (8) in frame (1) upper middle position, and steering spindle (9) is plugged in the axis hole (8) of frame (1) and is rotatable.

3, sander as claimed in claim 1 or 2, it is characterized in that described frame (1) be provided with about two tractive posts (16), and they are each positioned at the below of directive wheel (13), and there is a lasso upper end of tractive post (16), and drawing rope (14) is connected in extension spring (15) under after passing lasso.

4, sander as claimed in claim 1 or 2, it is characterized in that described frame (1) be provided with about the tractive post (16) of two hollows, and they are each positioned at the below of directive wheel (13), and drawing rope (14) passes tractive post (16) and is built in extension spring (15) aerial in the tractive post and joins.