JPS5851065A - Grinder for woodwork - Google Patents

Abstract

PURPOSE:To enable woodwork products having rounded angle parts to be polished efficiently by the operation of the roller installed on a pantagraph mechanism and the sander belt stretched between tension rollers. CONSTITUTION:One edge part of each arm 3 of a pantagraph mechanism is pivotally installed 4, and one edge of a crank arm 5 of an angle shape is pivotally installed 6 onto the other edge part, and each roller 8 is installed onto the other edge of the crank arm 5 of each angle shape. Onto the pivot 4, the split groove 11 form on one edge of the operating member 10. The other edge of which is fixed on the member driven by a driving device 12 is fitted. A sander belt 15 is stretched along the roller 8, a driving roller 14, and a tension roller 13, and a pinch roller is installed onto the roller 14, to drive the sander belt 15. The article A to be ground is fixed on the supporting board of the body, and inserted from outside between the rollers 8, and polished uniformly by the sander belt 15.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a polishing device for polishing wood products, etc. More specifically, the present invention relates to a polishing device for polishing wood products, etc. The present invention provides a polishing device suitable for polishing wood products and round bars.

Conventionally, polishing of wood products has mostly been done manually, which has the drawbacks of extremely low efficiency, uneven polishing, and high labor costs.

In addition, there are those that polish the material to be polished by reciprocating a flat polishing brush or roller-shaped polishing brush, or those that polish the material to be polished by placing it on a rotatable potter's wheel and rotating the potter's wheel to allow the worker to polish the material. Those with a simple structure, such as those that polish with a brush, are mainly used, but they cannot polish materials with uneven corners and rounded edges, or round bars. Furthermore, a polishing device that uses a sander belt for polishing is known, but it cannot polish uneven surfaces, and it cannot polish or polish round bars and rounded corners.

In view of the above-mentioned circumstances, the present invention relates to a woodworking polishing device suitable for polishing wooden products having rounded corners, round bars, etc. The present invention will be described below with reference to the drawings.

In the present invention, a groove 2 is carved in a fixed frame 1 that is swingably attached to a main body. The fixed frame 1 is attached to the main body with screws or square rods 1', and is configured to swing with a swinging rod 1# at appropriate times. One ends of the two arm rods 3 of the nontagraph mechanism are pivoted 4, and the pivot shafts 4 are fitted into the split grooves 2, and one end of the arm rod 5 of the e-tagraph mechanism is attached to the other end of the arm rod 3 of the e-tagraph mechanism. are pivoted 6, and the two rods 5 intersect, and the intersection point is pivoted 7, and the pivot 7 is fixed to the fixed frame 1, and the two rods 5 intersect.
Attach roller 8 to the other end. Therefore, when the pivot 4 of the pantograph mechanism is operated along the groove 2, the roller 8 is operated using the pivot 7 as a fulcrum and can be opened and closed freely. Note that the pivot 7 of the pivot 7 is of course fixed to the fixed frame 1, but a long hole 9 is bored in the fixed frame 1, and the pivot 7 of the pivot 7 is fixed to the fixed frame 1 depending on the size and thickness of the material A to be polished. The wire shaft can be moved and fixed along the elongated hole 9.

In addition, one end of the pivot shaft 4 of the arm rod 3 has a driving device 1 such as an electric motor.
A dividing groove 11 provided at the other end of the actuating member 10 fixed to the driving member driven by the
The actuation of the roller 8 of the intrograph mechanism is effected by the actuation of the actuating member 10.

Further, another embodiment will be described in FIG. Actuation member 1 above
If an electric solenoid or a hydraulic serze cylinder (hydraulic device) lo' is used instead of □ and the protruding end 10'' protruding from it is pivotally connected to the pivot shaft 4, the pivot shaft 4 will be split by the protruding movement of the protruding end 10''. It operates along groove 2.

The present invention provides a tension roller 13 in addition to the operating members of the ξ antagraph mechanism and the ξ antagraph mechanism.
and a drive roller 14 driven by an electric motor or the like,
・It has a roller 8.8 attached to a ξ-tagraph mechanism, a tension roller 13, and a sander belt 15 installed on a drive row 214, but a pinch roller is provided on the drive roller 14 to drive the sander belt 15. A spring (not shown) is installed on the tension roller 13 to tension the sander belt 15, and a long hole 16 is provided to adjust the length of the sander belt 15.
The sander belt 15 is a belt whose outer surface is coated with an abrasive material, and the object to be sanded A is fixed to the support stand of the main body, and the sander belt 15 is attached to the outside between the rollers 8 and 80 of the notagraph mechanism. intervene. The present invention may be of a vertical type and the object to be polished A may be inserted from below or from the front, or it may be of a horizontal type and the object to be polished A may be inserted from the side or from the front.

When polishing a round bar, the fixed frame 1 is oscillated and the distance between the rollers 8 and 8 is narrowed, and the object A to be polished is turned upside down, or the support is rotated. Perform polishing.

The present invention has the configuration as described above, and when the notagraph mechanism is extended in the stretching direction using the axis 7 of the notagraph mechanism as a fulcrum, the rolls 8.8 move in the closing direction, and the fixed frame A round bar can be easily and evenly polished by swinging the round bar 1 with a screw or square bar 1' as a fulcrum, or by rotating a support base that supports the object to be polished A. For example, as shown in Fig. 3. As shown, both ends of the object A to be polished are supported 17L, and one end of the support 17 is connected to a reduction motor to rotate the round bar A. The rotating round bar A is ground by a sander belt 15, and is ground evenly and uniformly.

When polishing a rounded object with an uneven surface, use a narrow sander belt 15 as shown in Figs. All you have to do is do this. As described above, the present invention has the advantage that it is possible to evenly and uniformly polish a round bar or a material A to be polished that has irregularities and rounded corners.

In the present invention, since the pivot 7 is fixed to the fixed frame 1 and the pivot 4 is fitted into the groove 2 of the fixed frame 1, the rollers 8, 8 will not move unless the pivot 4 is moved. ,
Moreover, the sandilt 15 of the present invention has a tension roller 13
The fixing location of the roller can be adjusted and moved using the elongated hole 16, and since the tension roller is tensioned with a spring or the like, the object to be polished can be interposed between the a-ra 8, 8 and polished. It is also easy to do.

[Brief explanation of the drawing]

Figure 1 is a plan view of the main part, Figure 2 is a perspective view of another embodiment of the operating member, Figure 3 is a perspective view of polishing a round bar, and Figures 4 and 5 are polishing of other objects to be polished. FIG. 6 is an explanatory diagram showing the state before polishing. l... Fixed frame, 1'... Screw, 2... Division groove, 3.
・・Arm rod, 4.6.7・・Axis, 5・・Kuno rod,
8... Roll, 9... Elongated hole, 10... Operating member,
13... Tension roller, 14... Drive roller,
15... Sander belt, A... Object to be polished. Figure 2

Claims (2)

[Claims] (1) Two arm rods are pivotally connected, and the pivot shafts are fitted into grooves carved in the fixed frame, and the two arm rods are crossed and pivotally connected at the intersection point, and fix the pivot shaft to the fixed frame,
A pantograph mechanism in which one end of each arm is pivotally connected to each of the above-mentioned arm rods and a roller is attached to the other end, and an operation that operates the pivot shafts of the two arm rods along the grooves of the fixed frame. A woodworking polishing device comprising a member, a drive roller, a tension roller, and a sander belt installed over the two rollers, and a material to be polished is interposed between the two rollers. (2) Woodworking polishing device 0 according to claim 1, in which a fixed frame is swingably attached to the main body.