CN206937030U - Hand sander - Google Patents

Abstract

The utility model discloses a kind of hand sander, its drip irrigation device is to include the frame placed on the ground and the workbench being arranged in frame, scroll wheel is rotatably connected in two side walls of frame on the table, abrasive band is arranged with two scroll wheels, sliding, which is connected with, in frame abuts against with the upper surface in lower floor abrasive band and drives lower floor abrasive band downwardly convex to be connected to the press component on sheet material, the tension assembly of regulation abrasive band rate of tension is provided between frame and abrasive band, reach convenience the rate of tension in abrasive band is adjusted, prevent the technique effect that abrasive band loosens during long-time use.

Description

Hand sander

Technical field

Sheet fabrication field is the utility model is related to, more particularly to a kind of hand sander.

Background technology

Sheet material is raw material important in all kinds of Furniture manufacturings, usually requires to beat plate surface after the completion of cutting Grind to meet the surface smoothness required by japanning, welt or welt processing.At present, in the prior art by sander to plate Material surface is polished, and the sander for being polished plate surface is broadly divided into manual sander and automatic sander two Class.Manual sander is polished plate surface mainly by the manual mode of worker, and equipment manufacturing cost is low, is adapted to middle-size and small-size Enterprise uses.

The existing Chinese patent for referring to Publication No. CN205415227U, it discloses a kind of entitled one kind to be used for The manual sander of wardrobe cabinet door, including frame and workbench are processed, is symmetrically arranged with and column phase on the inside of two columns of frame Vertical guide rod, workbench are slidably disposed on guide rod vertically, and mechanism of sanding machine, sanding are provided with above workbench Mechanism includes abrasive band, driving wheel, driven pulley, breast wheel, the motor for driving driving wheel, and driving wheel and driven pulley are symmetrical arranged On two columns of frame, breast wheel is arranged on the entablature of frame, and breast wheel is located at the middle part of entablature, the active Connected, be provided with below entablature for by the working face and workbench in abrasive band by abrasive band between wheel, driven pulley, breast wheel The hold-down mechanism of end contact, the dust shield being connected with dust exhaust apparatus is respectively fixed with two columns of frame, two dust shields Mouth end is opposite, and driving wheel and driven pulley are respectively corresponding in dust shield.It is manually operated by the pressing device of below the crossbeam Pressing device, the working face in abrasive band is contacted with workpiece surface, realize that sanding acts on.Although its low cost, accommodate middle-size and small-size Enterprise uses.

But during manually operated pressing device carries out sanding, abrasive band easily causes loosening so that equipment can not Enough carry out normal sanding work.

Utility model content

The purpose of this utility model is to provide a kind of convenience and the rate of tension in abrasive band is adjusted, and prevents from using in long-time During abrasive band loosen hand sander.

Above-mentioned technical purpose of the present utility model technical scheme is that：

A kind of hand sander, including frame on the ground and the workbench being arranged in frame are placed, in work Make to be rotatably connected to scroll wheel in two side walls of frame on platform, be arranged with abrasive band on two scroll wheels, slid in frame It is connected with and is abutted against with the upper surface in lower floor abrasive band and drive lower floor abrasive band downwardly convex to be connected to the pressing group on sheet material Part, it is provided between frame and abrasive band and is connected on the lower surface in upper strata abrasive band and controls to adjust the tensioning of abrasive band rate of tension Component.

By using such scheme, during normal use, the rate of tension in abrasive band is adjusted in real time by tension assembly, So that equipment is not easy to loosen in abrasive band when long-time uses so that the operation that equipment can be stablized, adds the practicality of equipment Property effect.

Preferably, the tension assembly include be rotatably connected in frame the second cross bar, be installed in the second cross bar both ends And two connecting rods being parallel to each other, it is installed in first cross bar of the connecting rod away from second cross bar one end and is rotatably connected on first Tensioning wheel on cross bar, the tensioning wheel and the lower surface in upper strata abrasive band abut against, be additionally provided with frame regulation tensioning wheel with Abrasive band abuts the adjusting part of power.

By using such scheme, specifically, tension assembly includes the first cross bar, the second cross bar and two connecting rod compositions A quadra structure so that idler roller is supported by direction framework so that the stabilizing effect of equipment improves, The practicality effect of equipment is added simultaneously.

Preferably, the adjusting part includes the pull bar being installed on the second cross bar and is hinged on spacing in frame Bar, groove is provided with the side wall of gag lever post and the spacing spiral shell for being fixedly connected with and being connected with pull rod screw is slid in groove Bolt, elastic parts is provided between pull bar and frame.

By using such scheme, specifically, adjusting part includes the pull bar and gag lever post for the annexation that is in the shape of the letter V, make Idler roller can be supported by adjusting caging bolt by obtaining equipment when in use, add the stabilizing effect of equipment.

Preferably, the elastic parts includes being installed in the hook of the one end of pull bar away from the second cross bar, is installed in hook On spring and be arranged between spring and frame and spend blue hook, correspondingly spend the blue position linked up with to be installed with U in frame Shape link, it is described to spend the blue both ends linked up with to be mounted respectively with U-shaped link and spring.

By using such scheme, specifically, elastic parts includes spending blue hook and is arranged on Hua Lan hooks upside Spring so that the blue length linked up with can be spent to control the tensile force of spring to be adjusted by regulation when in use, handle operation It is simple and convenient, add the practicality effect of equipment.

Preferably, the position of corresponding second cross bar is installed with two identical bases in frame, second cross bar with Base rotation connects.

By using such scheme, by the base of setting enable to the second cross bar it is stable be rotatably connected on frame On, improve the stabilizing effect of equipment.

Preferably, vertically sliding is fixedly connected with raising board, the workbench in the frame on the downside of workbench Slide and connect with raising board.

By using such scheme, raising board is slid in the frame on the downside of workbench so that control by the way that raising board is convenient Workbench processed rises or declined, and device structure is simple, adds the practicality effect of equipment.

Preferably, the position that raising board is corresponded in frame is installed with guide rail, the position of corresponding rails is opened on raising board There is the chute being adapted with guide rail.

By using such scheme, specifically, the fixed guide rail in the position that raising board is corresponded in frame, raising board pass through cunning Cooperation between groove and guide rail slides in frame so that equipment rises or declined and more stablizes, and improves the stabilization of equipment Property effect.

Preferably, being installed with angle steel on raising board upper surface, guide groove is provided with angle steel and in workbench lower surface The position of upper corresponding guide groove is rotatably connected to the first pulley being connected on guide groove.

By using such scheme, by using such scheme, specifically, the fixed angle steel in raising board upper surface and Guide groove is opened up in the side wall of angle steel, and pulley is provided with guide groove so that workbench can be in the enterprising line slip of pulley so that Equipment operation is simple and convenient, and workbench sliding is more smooth, adds the practicality effect of equipment.

In summary, the utility model has the advantages that：Facilitate the height of adjustment work platform, facilitate operating personnel Operated；Add stabilization of equipment performance and practicality effect.

Brief description of the drawings

Fig. 1 is the overall structure diagram of the present embodiment；

Fig. 2 is the enlarged drawing in A portions in Fig. 1；

Fig. 3 is the enlarged drawing in B portions in Fig. 1；

Fig. 4 is the enlarged drawing in C portions in Fig. 1；

Fig. 5 is the schematic diagram of prominent tension structure in the present embodiment；

Fig. 6 is the enlarged drawing in D portions in Fig. 5；

Fig. 7 is the exploded perspective view of prominent pulley drive structure in the present embodiment；

Fig. 8 is the enlarged drawing in E portions in Fig. 7；

Fig. 9 is the enlarged drawing of prominent press device in the present embodiment；

Figure 10 is the enlarged drawing in F portions in Fig. 9；

Figure 11 is the schematic cross-section of prominent pulley and guide groove fit system in the present embodiment；

Figure 12 is the schematic cross-section of prominent raising board and guide rail fit system in the present embodiment.

In figure, 1, frame；11st, workbench；111st, handle is pressed；112nd, pressing lever；113rd, adjusting nut；114th, pressing plate Connector；115th, joint element for bar is pressed；116th, fixing bolt；117th, draw ring；118th, second sleeve；119th, regulating bolt；12nd, shelves Plate；13rd, angle steel；14th, guide groove；15th, catch；16th, first pulley；17th, balancing weight；18th, balancing weight connecting rod；19th, second pulley； 21st, raising board；211st, protective cover；212nd, hand-operated wheel；213rd, synchronous pulley；214th, screw；2141st, 3rd sleeve；215th, it is synchronous Band；216th, worm gear；22nd, worm screw；23rd, nut；24th, bearing；25th, guide rail；26th, screw rod；27th, boss；28th, U-shaped block；29th, first Sleeve；31st, fix bar；32nd, tensioning wheel；33rd, pressing plate；34th, abrasive band；35th, motor；36th, dust shield；37th, scroll wheel；41st, even Bar；411st, U-shaped link；412nd, pull bar；413rd, link up with；42nd, base；43rd, the first cross bar；44th, spring；45th, the second cross bar；46、 Caging bolt；47th, groove；48th, gag lever post；49th, Hua Lan is linked up with.

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing.Wherein identical parts identical accompanying drawing Mark represents.It should be noted that the word "front", "rear", "left", "right", the "up" and "down" that are used below in description refer to It is the direction in accompanying drawing, word " bottom surface " and " top surface ", " interior " and " outer " are referred respectively to towards or away from particular elements geometry The direction at center.

Embodiment：A kind of hand pressure sander, with reference to Fig. 1 and Fig. 2, including frame 1, it is provided with the two side bottom of frame 1 Through hole and worm screw 22 is inserted with through hole, the both ends of worm screw 22 protrude frame 1 and set, and bearing is arranged with worm screw 22 24, the inner ring of bearing 24 is fixedly connected with worm screw 22, and the outer ring of bearing 24 is fixedly connected with frame 1, and the one end of worm screw 22 is provided with spiral shell Line and the nut 23 for fixing worm screw 22 is threaded with screw thread.

With reference to Fig. 1 and Fig. 3, the bottom both ends of frame 1 are installed with inverted U-shaped block 28 respectively, in the upper surface of U-shaped block 28 It is provided with through hole and first set cylinder 29 is embedded with through hole, screw rod 26 is inserted with the first sleeve 29, in the first sleeve 29 Worm gear 216 is installed with the screw rod 26 of upside, worm gear 216 is intermeshed with worm screw 22.

With reference to Fig. 1 and Fig. 2, the top of screw rod 26 is threaded with boss 27, and raising board is installed with the side wall of boss 27 21, the position that raising board 21 is corresponded in frame 1 is installed with the guide rail 25 for vertically sliding and being connected with raising board 21（With reference to Figure 12）.

With reference to Fig. 7 and Fig. 8, hand-operated wheel 212 is rotatably connected in the frame 1 on the upside of the one end of worm screw 22, in hand-operated wheel 212 With identical synchronous pulley 213 is arranged with worm screw 22 respectively, be fixedly connected with hand-operated wheel 212 with synchronous pulley 213, worm screw 22 The position of upper corresponding synchronous pulley 213 is arranged with 3rd sleeve 2141, through hole is provided with the side wall of 3rd sleeve 2141 and logical Hole is embedded to be inserted with screw 214, and the bottom of screw 214 is threadedly coupled with worm screw 22, synchronous pulley 213 by 3rd sleeve 2141, Nut 23 is fixedly connected with worm screw 22, and timing belt 215 is arranged with two synchronous pulleys 213, and two synchronous pulleys 213 pass through synchronization Band 215 is driven, and being fastened on timing belt 215 has protective cover 211.

With reference to Fig. 1 and 4, the top of raising board 21 is provided with horizontal positioned workbench 11, is installed with raising board 21 inverted Angle steel 13, angle steel 13 correspond to and are provided with guide groove 14, the lower surface pair of workbench 11 along the length direction of angle steel 13 in the side wall of workbench 11 Answer the position of guide groove 14 to be rotatably connected to two groups of pulleys 16, workbench 11 is slid along guide groove 14 is front and rear, the both ends of angle steel 13 are consolidated Provided with for avoiding workbench 11 from skidding off the catch 15 of guide groove 14, it is installed with workbench 11 for the manual push-and-pull of operating personnel Draw ring 117, the side of the upper surface of workbench 11 are installed with the baffle plate 12 for fixing workpiece.

With reference to Fig. 5 and Fig. 6, the upper surface of frame 1 is installed with the base 42 of two inverted U-shapeds, is plugged on two bases 42 There is the second cross bar 45 being rotatablely connected with base 42, relatively parallel connecting rod is installed with respectively in the both ends side wall of the second cross bar 45 41, end of two connecting rods 41 away from the second cross bar 45 is installed with the first cross bar 43, and drawing is installed with the side wall of the second cross bar 45 Bar 412, pull bar 412 and connecting rod 41 are in the shape of the letter V distribution, and the position that pull bar 412 is corresponded in frame 1 is hinged with gag lever post 48, limit Groove 47 is provided with the side wall of position bar 48, caging bolt 46, bottom and the pull bar 412 of caging bolt 46 are inserted with groove 47 Threaded connection, pull bar 412 are slidably connected by caging bolt 46 and gag lever post 48, the one end of pull bar 412 away from the second cross bar 45 Hook 413 is installed with, U-shaped link 411 is installed with the frame 1 of the downside of hook 413, between hook 413 and U-shaped link 411 Provided with the spring 44 mutually mounted and Hua Lan hooks 49, spring 44 is away from the one end and the mounting of hook 413, Hua Lan for spending blue hook 49 49 one end away from spring 44 of hook mounts with U-shaped link 411.

Fig. 1 is reviewed, tensioning wheel 32 is rotatably connected on the first cross bar 43, is installed with the frame 1 above workbench 11 Motor 35, scroll wheel 37 is installed with the rotating shaft of motor 35, abrasive band 34 is arranged with the scroll wheel 37 of tensioning wheel 32 and two, roll Being fastened on wheel 37 has dust shield 36.

With reference to Fig. 1 and Fig. 9, fix bar 31 is installed with the frame 1 above workbench 11, is installed with fix bar 31 Second sleeve 118, the both ends of second sleeve 118 are respectively rotatably connected to four uniform second pulleys 19, fixed in second sleeve 118 There are balancing weight connecting rod 18, a pressing lever 112, balancing weight connecting rod 18 and pressing lever 112 are in the shape of the letter V distribution, and balancing weight connecting rod 18 is remote One end of second sleeve 118 is installed with balancing weight 17, and the one end of pressing lever 112 away from second sleeve 118 is installed with pressing handle 111, pressing joint element for bar 115 is arranged with pressing lever 112, presses and is threaded with fixing bolt 116 on joint element for bar 115, Pressing joint element for bar is fixedly arranged on pressing lever 112 by fixing bolt 116, is had and is offered through hole simultaneously on pressing joint element for bar 115 And regulating bolt 119 is inserted with through hole（With reference to figure 10）, the bottom thread of regulating bolt 119 is connected with adjusting nut 113（Ginseng Examine Figure 10）, press joint element for bar 115 and pressing plate connection be hinged with by regulating bolt 119, the matable assembly of adjusting nut 113 114, the one end of pressing plate connector 114 away from pressing joint element for bar 115 is installed with pressing plate 33, and the both ends of pressing plate 33 are bent up curved Into the structure of two U-shapeds.

Specific implementation process：First, hand-operated wheel 212 is rotated, drives worm screw 22 to rotate by timing belt 215, the band of worm screw 22 Dynamic screw rod 26 rotates, and screw rod 26 drives the rise and fall of raising board 21, drives the rise and fall of workbench 11 by raising board 21, adjusts work Make platform 11 to suitable position.

Regulation spends blue hook 49 to adjust the elastic force of spring 44, and the elastic force by adjusting spring 44 is adjusted to be applied to pull bar 412 The size of downward power, because pull bar 412, the second cross bar 45, the row of connecting rod 41, by the lever construction that base 42 is fulcrum, lead into one The power of the pull bar 412 for changing one end as lever is crossed to change upward power that the first cross bar 43 is provided tensioning wheel 32 to adjust Abrasive band 34 is saved to suitable tensile force.

Then the workpiece that will be polished is placed on 11 on workbench, is close to baffle plate 12 and is placed.Abrasive band 34 when passing through work With friction of workpiece caused by the direction frictional force relative with baffle plate 12 workpiece opposing flaps is had an active force, carry out regular worker Part.Start motor 35, operation pressing handle 111, pressing plate 33 is pressed down on abrasive band 34, abrasive band 34 is contacted with workpiece surface. Come workpiece of polishing, by transverse shifting second sleeve lane 118, make workbench 11 is movable to be combined with operation draw ring 117 Mode come the different positions for workpiece of polishing.Pressing handle 111 is unclamped after the completion of polishing, due to balancing weight 17 because under deadweight Drop, which lifts pressing lever 112, makes pressing plate 33 leave abrasive band 34, removes the workpiece polished, and closes motor 35.

This specific embodiment is only that it is not to limitation of the present utility model, ability to explanation of the present utility model Field technique personnel can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but As long as all protected in right of the present utility model by Patent Law.

Claims (9)

1. a kind of hand sander, including place frame on the ground（1）And it is arranged on frame（1）On workbench （11）, in workbench（11）On frame（1）Scroll wheel is rotatably connected in two side walls（37）, in two scroll wheels（37）On It is arranged with abrasive band（34）, it is characterised in that：In frame（1）Upper sliding is connected with and lower floor abrasive band（34）Upper surface abut against simultaneously And drive lower floor abrasive band（34）It is downwardly convex to be connected to the press component on sheet material, in frame（1）With abrasive band（34）Between set It is connected to upper strata abrasive band（34）Lower surface on and control to adjust abrasive band（34）The tension assembly of rate of tension.

A kind of 2. hand sander according to claim 1, it is characterised in that：The tension assembly includes rotation connection In frame（1）On the second cross bar（45）, be installed in the second cross bar（45）Both ends and two connecting rods being parallel to each other（41）, it is solid It is located at connecting rod（41）Away from the second cross bar（45）First cross bar of one end（43）And it is rotatably connected on the first cross bar（43）On Tensioning wheel（32）, the tensioning wheel（32）With upper strata abrasive band（34）Lower surface abut against, in frame（1）On be additionally provided with regulation Bearing up pulley（32）With abrasive band（34）Abut the adjusting part of power.

3. hand sander according to claim 2, it is characterised in that：The adjusting part includes being installed in the second horizontal stroke Bar（45）On pull bar（412）And it is hinged on frame（1）On gag lever post（48）, in gag lever post（48）Side wall on be provided with it is logical Groove（47）And in groove（47）Interior sliding is fixedly connected with and pull bar（412）The caging bolt of threaded connection（46）, in pull bar （412）With frame（1）Between be provided with elastic parts.

4. hand sander according to claim 3, it is characterised in that：The elastic parts includes being installed in pull bar （412）Away from the second cross bar（45）One end hook（413）, be installed in hook（413）On spring（44）And it is arranged on Spring（44）With frame（1）Between spend blue hook（49）, in frame（1）Upper correspondence spends blue hook（49）Position be installed with U Shape link（411）, it is described to spend blue hook（49）Both ends respectively with U-shaped link（411）And spring（44）Mounting.

5. hand sander according to claim 2, it is characterised in that：In frame（1）The upper cross bar of correspondence second（45） Position be installed with two identical bases（42）, second cross bar（45）With base（42）Rotation connection.

6. hand sander according to claim 1, it is characterised in that：In workbench（11）The frame of downside（1）On Vertically sliding is fixedly connected with raising board（21）, the workbench（11）With raising board（21）Sliding connection.

7. hand sander according to claim 6, it is characterised in that：In frame（1）Upper corresponding raising board（21）'s Position is installed with guide rail（25）, in raising board（21）Upper corresponding rails（25）Position be provided with and guide rail（25）The cunning being adapted Groove.

8. hand sander according to claim 7, it is characterised in that：In raising board（21）Angle is installed with upper surface Steel（13）, in angle steel（13）On be provided with guide groove（14）And in workbench（11）Guide groove is corresponded on lower surface（14）Position rotate It is connected with and is connected to guide groove（14）On first pulley（16）.

9. hand sander according to claim 8, it is characterised in that：In angle steel（13）Both ends be installed with gear respectively Piece（15）.