Sanding head straight reciprocating motion apparatus for sander

Abstract

The invention relates to a linear reciprocating device for a sanding head of a sander. A case is provided with two groups of sanding devices at intervals in front and back, the two groups of the sanding devices are provided with a sanding element capable of sanding respectively, a linkage device is arranged between the two groups of the sanding devices, the linkage device uses a shaft element to be pivoted with the center of a rocking lever to the case, one end of the rocking lever is linked with one group of the sanding devices, the other end of the rocking lever is linked with the other group of the sanding devices, and the linkage device uses a driving structure to apply a torque on the rocking lever, so that the rocking lever can do reciprocating circular motion within a limited angle by using the shaft element as a supporting point; and further the two groups of the sanding devices can do sanding work of mutually parallel and symmetrically cross reciprocating linear motion without interference.

Description

technical field [0001] The invention relates to the field of sanding machines, in particular to a reciprocating linear motion device for a sanding head of a sanding machine. Under the technology of reciprocating linear motion, rotary motion and individual lifting compensation height at the same time. Background technique [0002] As shown in Taiwan Patent Publication No. 25288 "Abrasive Cloth Silk Wheel", it cuts the abrasive cloth into strips of appropriate size, and makes the sand-containing surface outward, and then combines the abrasive cloth threads together on a shaft. And arranged in a dense wheel shape, so that the end face of the emery cloth can be used for sanding. [0003] It is mainly equipped with a conveyor belt under the abrasive cloth wire wheel, and the wood workpiece is sent through the abrasive cloth wire wheel by the conveyor belt for processing. Generally speaking, the rotating sanding direction of the end surface of the abrasive cloth wire is parallel ...

AI Technical Summary

Problems solved by technology

The previous patent case does have the disadvantages of improving the bulletin No. 25288, but the two sanding rods are not parallel to each other and move in a straight line, the stroke is greatly limited, and the workpiece will move in one direction, causing the pressure roller to be strong. Pressing the workpiece will cause obvious indentation on the surface of the workpiece. In addition, the sanding effect on the left and right sides of the workpiece is not yet optimal.

Even the combination of the No. 263813 patent and the No. 535689 "roller swing structure of the belt machine" is still not enough for relevant users to implement efficiently. The reason is that it is used for sanding. The second roller cannot be adjusted in height under the configuration of the swing structure, so that the second roller cannot be replaced separately, but must be replaced together, which is quite wasteful and uneconomical, because the first roller is mostly used for coarse sanding, and the second The roller is used for fine sanding, and the wear conditions of the two rollers are completely different. If one of the rollers is completely worn out, it is obviously very inappropriate and uneconomical to replace them together. More importantly, the second roller cannot be used at all. It can be adjusted elastically to the desired sanding height, so it is not practical

Images