CN104440476B

CN104440476B - Sander

Info

Publication number: CN104440476B
Application number: CN201310416502.8A
Authority: CN
Inventors: 王伟; 黄显威; 余鸿东; 韩苏梅
Original assignee: Positec Power Tools Suzhou Co Ltd
Current assignee: Positec Power Tools Suzhou Co Ltd
Priority date: 2013-09-13
Filing date: 2013-09-13
Publication date: 2017-08-01
Anticipated expiration: 2033-09-13
Also published as: CN104440476A

Abstract

The invention discloses a kind of sander, including housing, the driving element being arranged in housing, the eccentric being coupled with driving element and the bottom deck assembly being coupled with eccentric, bottom deck assembly includes bottom plate and base pad；In addition, sander also includes the anti-rotation device being arranged on bottom deck assembly, anti-rotation device can slow down complete machine beat of the sander in start and rotate.

Description

Sander

Technical field

The present invention relates to a kind of sander, more particularly to a kind of sander including anti-rotation device.

Background technology

At present, sander is widely used in the polishing sanding of metope, ground or various workpiece.Sander, which generally has, to be carried For the motor of driving force, motor is connected to dynamic transfer system and within the housing of sander.Sander also has work Chassis, dynamic transfer system also includes eccentric, and motor is connected by dynamic transfer system with work chassis, and work chassis Bottom surface be pasted with the abrasive materials such as sand paper.During work, axial rotation is made in motor driving chassis around an axle, and the sand paper of attaching will It is corresponding to rotate, the workpiece surface to be polished is polished, so as to be allowed to smooth.

However, due to the presence of sanding machine structure eccentric, it is whole often to there is sander in starting up in sander The problem of machine beat is rotated.When especially also not attaching the abrasive materials such as sand paper in the bottom surface on the chassis that works, sander work bottom Base pad included by disk is directly contacted with the work top or workpiece of sander, and base pad is usually expanded material, with sanding There is larger rubbing action between the work top or workpiece of machine, once sander is accidentally, sander complete machine beat The problem of rotation, is more prominent, when serious, may be rotated due to the beat of sander and trigger security incident.

In view of this, it is necessary to develop a kind of new sander, sander work chassis and sander can be weakened Rubbing action between work top or workpiece, so as to slow down complete machine beat rotational problems of the sander in start.

The content of the invention

The technical problem to be solved in the present invention is to provide a kind of sander, complete machine of the sander in start can be slowed down inclined Put rotational problems.

The technical proposal of the invention is realized in this way：A kind of sander, including housing, the drive that is arranged in the housing Dynamic element, the eccentric being coupled with the driving element and the bottom deck assembly being coupled with the eccentric, the bottom plate Component includes bottom plate and base pad；In addition, the sander also includes the anti-rotation device being arranged on the bottom deck assembly, it is described Anti-rotation device can slow down complete machine beat of the sander in start and rotate.

It is preferred that, the anti-rotation device is matte material layer, and the matte material layer is arranged at the bottom of the base pad.

It is preferred that, the matte material layer is identical with the shape size of the base pad.

It is preferred that, the matte material layer and the base pad together with or pass through foam process by adhesive bond It is integrally formed.

It is preferred that, the thickness of the base pad is 5~7mm, and the thickness of the matte material layer is 1mm.

It is preferred that, the anti-rotation device is pad, and the pad is arranged between the bottom plate and the base pad；It is described The size of pad is less than the size of the base pad.

It is preferred that, the thickness of the pad is 0.2~0.4mm；The material of the pad is polyvinyl chloride.

It is preferred that, the pad is shaped as Central Symmetry shape；The symmetrical centre of the pad and the center of the bottom plate, And the base pad is centrally located on same longitudinal axis.

It is preferred that, being shaped as the pad is square or circular.

It is preferred that, the bottom plate is provided with the groove towards base pad, and the anti-rotation device is elastomer, and the elastomer is set It is placed in the groove.

Compared with prior art, sander provided by the present invention, can by setting anti-rotation device in bottom deck assembly Effectively slow down complete machine beat rotational problems of the sander in start, improve the security of sander.Anti-rotation device is suede During cover material layer, the coefficient of friction between sander and work top or workpiece is reduced, is being opened so as to slow down the sander Complete machine beat rotational problems during machine；Anti-rotation device is the pad being arranged between bottom plate and base pad, or anti-rotation device is When groove and elastomer, it can reduce the friction area between sander and work top or workpiece, so as to slow down the sanding Complete machine beat rotational problems of the machine in start.

Brief description of the drawings

The invention will be further described with reference to the accompanying drawings and examples.

Fig. 1 is the structure chart of sander in the first embodiment；

Fig. 2 is the structure chart of sander in second of embodiment；

Structure charts of the Fig. 3 for sander in the third embodiment when unloaded；

Structure chart when Fig. 4 loads for sander in the third embodiment.

Wherein：

1st, housing 2, driving element 3, eccentric

4th, bottom deck assembly 41, bottom plate 42, base pad

5th, matte material layer 6, pad 7, elastomer

Embodiment

The present invention comes out with a kind of sander, is illustrated by implementation below.

Shown in reference picture 1, in the first embodiment, sander includes housing 1, the driving element being arranged in housing 1 2nd, the eccentric 3 being coupled with driving element 2 and the bottom deck assembly 4 being coupled with eccentric, wherein, driving element 2 can be with It is the motor of driven by power or the air pressure rotor of air pressure driving, bottom deck assembly 4 includes bottom plate 41 and base pad 42, bottom Plate pad 42 is expanded material.

Anti-rotation device is provided with bottom deck assembly 4, anti-rotation device is matte material layer 5, and matte material layer 5 is arranged at base pad 42 bottom.Specifically, one layer that matte material layer can be formed by the various matte materials such as velveteen.It is preferred that scheme in, bottom The thickness of plate pad 42 is 5~7mm, and the thickness of matte material layer 5 is about 1mm, in scheme preferably, matte material layer 5 and bottom plate Pad 42 is of similar shape size.It is preferred that scheme in, arrived between matte material layer 5 and base pad 42 by adhesive bond Together, or matte material layer 5 is directly integrally formed with base pad 42 by foam process.

Matte material layer 5 can reduce the coefficient of friction between bottom deck assembly 4 and work top or workpiece, so as to slow down sanding Complete machine beat rotational problems of the machine in start.Similar with the principle of matte material layer 5, anti-rotation device be able to can also reduce for other The various material layers of coefficient of friction between bottom plate group 4 and work top or workpiece.

When sander works, driving element 2 drives bottom deck assembly 4 to do regular concussion and moved by eccentric 3, sand The bottom of bottom deck assembly 4 is pasted or be socketed on to the abrasive materials such as paper, is moved as bottom deck assembly 4 does regular concussion, so that Realize the polishing to workpiece.

Shown in reference picture 2, in second of embodiment, sander includes housing 1, the driving element being arranged in housing 1 2nd, the eccentric 3 being coupled with driving element 2 and the bottom deck assembly 4 being coupled with eccentric 3, wherein, driving element 2 can Be driven by power motor or air pressure driving air pressure rotor, bottom deck assembly 4 include bottom plate 41 and base pad 42.

Be provided with anti-rotation device in bottom deck assembly 4, anti-rotation device is pad 6, pad 6 be arranged at bottom plate 41 and base pad 42 it Between center；The size of pad 6 is less than the size of base pad 42.It is preferred that scheme in, pad 6 is shaped as Central Symmetry Shape, the symmetrical centre of pad 6 and the center of bottom plate 41, and base pad 42 are centrally located on same longitudinal axis.More there is choosing In scheme, being shaped as pad 6 is square, circular.It is preferred that scheme in, the material of pad 6 is polyvinyl chloride, the thickness of pad 6 Spend for 0.2~0.4mm.

The presence of pad 6 can reduce the friction area between bottom deck assembly 4 and work top or workpiece, so as to slow down sanding Complete machine beat rotational problems of the machine in start.

Shown in reference picture 3 and Fig. 4, in the third embodiment, sander includes housing 1, the driving being arranged in housing 1 Element 2, the eccentric 3 being coupled with driving element and the bottom deck assembly 4 being coupled with eccentric, wherein, driving element 2 Can be the motor of driven by power or the air pressure rotor of air pressure driving, bottom deck assembly 4 includes bottom plate 41 and base pad 42。

Anti-rotation device is provided with bottom deck assembly 4, anti-rotation device includes groove（Not shown in figure）With elastomer 7, groove is set It is placed on bottom plate 41 and towards base pad 42, elastomer 7 is arranged in groove.It is preferred that scheme in, groove is around bottom plate 41 Center is centrosymmetric.

In this embodiment, when sander is unloaded, shown in reference picture 3, elastomer 7 is in free state, the meeting of elastomer 7 Base pad 42 is ejected so that the center section of base pad 42 is raised, reduce bottom deck assembly 4 and work top or workpiece it Between friction area so that slow down sander start when complete machine beat rotational problems.And during sander load, reference picture 4 Shown, elastomer 7 is in compressive state, and base pad 42 is also driven plain, and does not interfere with the quality of sander polishing.

Although inventor has done more detailed elaboration and enumerated to technical scheme, it will be appreciated that for For those skilled in the art, above-mentioned embodiment is modified and/or the flexible or equivalent alternative solution of use is aobvious Right, can not all depart from the term occurred in the essence of spirit of the present invention, the present invention is used for the elaboration to technical solution of the present invention And understanding, it can not be construed as limiting the invention.

Claims

1. a kind of sander, including housing, the driving element being arranged in the housing, the bias with driving element mating Device and the bottom deck assembly being coupled with the eccentric, the bottom deck assembly include bottom plate and base pad；Its feature exists In：The sander also includes the anti-rotation device being arranged on the bottom deck assembly, and the anti-rotation device can slow down the sanding Beat of the machine in start is rotated, and the bottom plate is provided with the groove towards base pad, and the anti-rotation device is elastomer, the bullet Property body be arranged in the groove and the elastomer ejects the base pad.