JPH0541389B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a surface finishing device for polishing, polishing, etc. on a work piece using a rotating finishing member.

BACKGROUND OF THE INVENTION In the manufacture of profiled articles such as cupboard doors, shutter doors, or the like, the surfaces must be polished to provide the desired finish. For this purpose, portable polishers are known, which can be manually moved across the article. This polisher requires some skill to obtain uniform results, and covers or the like must be constructed to protect the exposed areas from curling during polishing. As mentioned above, it takes a long time to polish the article, as well as requires skill in the processing operation, and when mass production of a variety of articles is a problem, the cost of the polishing machine becomes very high. , a cumbersome finishing process is required.

[Object and Summary of the Invention] An object of the present invention is to eliminate the above-mentioned drawbacks, and the object is to have a vertical rotation axis, a vertical rotation axis that is aligned with the rotation axis, and a rotation axis that is larger than the rotation axis. a separately driven drum; a number of spindles arranged radially around the drum and each attached to the rotating shaft via an arm;
In the surface finishing device having a finishing member attached to the outer end of the spindle, ring-shaped friction rings are provided on both upper and lower peripheral edges of the drum, and a circular friction ring is provided on the inner end of the spindle facing the drum. This is achieved by a surface finishing device which is provided with a plate and a cam corresponding to the arm that brings the disc into contact with one of the friction rings or in a neutral position of the friction ring.

The invention will now be further explained with reference to embodiments shown in the drawings.

Example 1 FIGS. 1 and 2 show an example of the present invention,
Thus, an exemplary embodiment in the form of a through-feed finishing machine is shown, for example for wood finishing and rounding of panels, doors and gates with panels.

This machine has a frame (not shown), on which a panel door 12, which is an example of a work piece, is mounted.
A conveyor belt is provided for. The conveyor consists of two conveyor belts 13 moved by shafts 15.

The doors are placed on the belt in such a way that they collide. Further, a protective member 14 is provided on both sides below the finishing member 11, and its upper edge is in line with the surface of the door 12. As a result, the side edges of the door 12 are not subjected to finishing processing because the finishing member 11 does not come into contact with them, and they remain sharp.

The finishing mechanism itself is provided above the workpiece or door 12. In the illustrated embodiment, the finishing mechanism consists of six spindles 10 mounted in a base (not shown), which base can be turned around the center of the device. The axis of rotation is vertical. As a result, the spindle 10 performs a circular motion, and the motor 3 on the drive section (not shown) moves the entire spindle 10.
change direction. Each spindle 10 is equipped with an operating arm 9 carrying a horizontally mounted roller 16 on its upper part, which roller 16 moves under the fixing ring 5 during rotation. This ring 5
Various cams or guides 17, 18 can be mounted on the operating arm 9, which can act vertically on the operating arm 9.

Furthermore, a cylinder 19 is embedded, which can be made to rotate about a vertical axis by means of the motor 2. The cylinder is provided with upper and lower inclined surfaces 6 and 7, which surfaces are provided with a friction-promoting material such as rubber or the like.

A friction cone 8 is provided between these two surfaces 6, 7, which cone is attached to one end of the spindle 10. By moving this cone up and down by means of the operating arm 9, the spindle 10 can be turned in two directions, and if desired, the left-hand spindle leaves in an intermediate position, as shown in FIG. You can also do it like this.

This structure allows the finishing process to be programmed and, by selection of cams or guides, to carry out the finishing process in such a way that the machine can be programmed in the desired manner with a given finishing operation.

The overall finishing equipment is mounted on the upper machine part 1, which can be raised or lowered relative to the conveyor belt and the height of the machine relative to the workpiece and feeding mechanism can be adjusted.

Embodiment 2 FIG. 3 shows another surface finishing device according to the present invention.
Two examples are shown. The device of this example is the first
In contrast to the device shown in FIGS. and 2 and described above, the device of this embodiment has a base 25 inside the rotary drive cylinder 19 and a spindle 10 in a position between the finishing member 11 and the cone 8. It has a large U-shaped steering arm 20 extending between them. The base 25 is connected to the motor 3 in such a way that the arm 20 and the spindle 10 can rotate around the cylinder 19.

The arms 20 can therefore be tilted around the base 25, and the cones 8 each have a cylinder 1
9 can be contacted with the lower and upper friction rings 6, 7.

Attached to the upper side of the arm 20 is a roller 21 which can be turned around a vertical axis. During the rotation of the spindle 10, this roller 21 is moved by a cam 23 provided on the fixed ring 5.
and 24 can be inclined inwardly or outwardly with respect to the ring 1 and thus swing the spindle 10 together with the cone 8 upwardly or downwardly relative to the cylinder 19.

One or more tension springs 22 are provided to hold the rollers against the cams 23 and 24.

By appropriate selection of the dimensions of the cam, the direction of rotation of the spindle can be determined. As shown in FIG. 3, the left spindle is tilted so that the cone 8 is in frictional contact with the lower ring 6. The smaller cam 24, shown on the right in FIG. 3, engages the cone with the upper friction ring 7, thereby causing the spindle to rotate in the opposite direction. A cam having a thickness within the range between these aforementioned cams holds the cone between the friction rings 6 and 7 and stops rotation of the spindle.

By choosing the dimensions of the cam and its position on the ring 5, the finishing can therefore be programmed in such a way that the finishing can be individually adapted to requirements. Furthermore, the extremely rigid construction of the arm, base and spindle results in a completely vibration-free and therefore smooth and precise finishing result.

3 corresponding to the parts shown in Figures 1 and 2.
Other parts of the figure are given the same reference numerals.

The illustrated motors 2 and 3 can be adjusted steplessly,
This results in the desired fully programmable through-feed type machine.

The finishing element 11 shown and described in the drawings consists of juxtaposed rings with thin finishing filaments;
Can efficiently engage the work piece. However, any type of finishing member, abrasive plate or wire brush, bronze brush or the like may be used as desired.

Instead of the above-mentioned embodiment example with an operating lever and a cam, the device according to the invention may also be provided with different types of control and adjustment means. The spindles could therefore also be engaged and disengaged by hydraulic or electromagnetic means, just as if an independent motor were provided for each spindle.

[Brief explanation of the drawing]

FIG. 1 is a view of an embodiment of the display finishing device according to the present invention as viewed in the - direction of FIG. 2, FIG. 2 is a view of the same device as viewed in the - direction of FIG. 1, and FIG. 2 is a view of another embodiment of the device according to FIG. 2, viewed in the same direction as FIG. DESCRIPTION OF SYMBOLS 1... Upper mechanical part, 2, 3... Motor, 5... Fixing ring, 6, 7... Inclined surface, 8... Cone, 9... Control arm, 10... Spindle, 11... Finishing member, 1
2... Panel door (processed piece), 13... Conveyor belt, 14... Protective material, 15... Shaft, 16... Roller, 1
7, 18...Cam or guide, 19...Cylinder,
20... Control arm, 21... Roller, 22... Tension spring, 23, 24... Cam, 25... Foundation.

Claims (1)

[Scope of Claims] 1. A vertical rotating shaft, a drum whose axis is aligned with the rotating shaft, has a larger diameter than the rotating shaft, and is driven separately, and is arranged radially around the drum. In the surface finishing device, the drum 19 has a ring-shaped ring on both upper and lower peripheries. friction rings 6 and 7 are provided, respectively, and the drum 1
A disk 8 is provided at the inner end of the spindle 10 facing the arms 9, and the disk 8 is brought into contact with one of the friction rings 6, 7 in correspondence with the arms 9, 20, or Cams 17, 18 to position rings 6, 7 in neutral positions; 23, 2
4. A surface finishing device characterized by being provided with 4.