JPS5815084Y2 - polishing equipment - Google Patents

Description

[Detailed description of the invention] The present invention consists of a case abrasive belt in which a part of the endless abrasive belt is run so that its abrasive grain surfaces become abrasive parts facing each other, and an article to be polished is inserted into this abrasive part. is pressed from the outside so that the workpiece to be polished is polished while being surrounded by the abrasive belt, and the polishing section is rotated reciprocatingly relative to the workpiece to be polished. For example, the peripheral edge of the handle of Western tableware such as a spoon or knife, or a spanner.
The present invention relates to a polishing device capable of polishing the circumferential edge portion of the periphery of the device so as to impart appropriate roundness to the edge portion thereof, and an embodiment illustrated in the accompanying drawings will be described in detail below.

In the embodiments shown in FIGS. 1 to 3, a circular swinging plate 1 is rotatably supported by a bearing 4 on an 11 base 3 fixed to the front end of a shaft 2 in the front-rear direction, and the shaft 2 is
A passive arm 5 is fixed to the rear end, and the passive arm 5 is oscillated back and forth over an angle range of about 90 degrees or more by a continuously variable crank device 6 to control the oscillating plate 1 at an appropriate speed. The swing board 1 has a drive boob IJ-7, 7 and several movable boops on the front surface of the swing board 1. While arranging J-8, 8 in a nearly circular row,
A loop floating pulley 9 is provided on the opposite side of the drive pulley 7.7, and the endless abrasive belt 10 is wrapped around a group of these pulleys so as to surround the drive boo 'J-7, 7 and the floating pulley 8.8. 1 residue.

A part of the drive boob IJ-7.7 is stretched out and hung on the idler pulley 9, thereby creating a loop-shaped structure in which the abrasive grain surfaces face each other in the central part surrounding the rotation axis of the oscillating plate 1. A polishing section G is formed, and the swing plate 1 is further provided with pressing rollers 11 on both outsides of the polishing section G.
．． An actuating arm 13 having an operating arm 12 at its tip is pivoted by a pin 14, and the other passive end is connected to a pneumatic cylinder mechanism 15, and the abrasive belt 10 is attached to the abrasive part G from both sides as necessary.
1. The floating pulley 9 is provided at the tip of a holding arm 17 which is pivotally fixed by a pin 16, so that the floating pulley 9 can be brought close to each other without touching each other.
The abrasive belt 10 is kept under tension at all times by the pneumatic cylinder mechanism 18.

Based on the above configuration, during the polishing work, the polishing belt 10 is run in a separation configuration in which the polishing portion G of the polishing belt is expanded as shown in FIG. After inserting the surface W to be polished into the axis of the oscillating plate, pressurized air is supplied and discharged to and from the pneumatic cylinder mechanism 15.15 by foot operation, etc., and the working arms 13.13 are moved between the pressure rollers 11 and 11 at the tips of the working arms 13.13. 12 and 12 are rotated so that they approach each other at the same time, so that the surface to be polished W is surrounded from both sides by the running polishing belt 10, and the outer peripheral edge of the surface to be polished W is polished according to its own shape. Thus, when a narrow abrasive belt 10 is used, it is possible to easily polish concave portions on both side edges of spanners, spoons, forks, etc. by moving the surface W to be polished back and forth. It can be done.

In the above embodiment, only one abrasive belt 10 is used, but two abrasive belts 10 may be used as shown in FIG. Pulley 8.8.9゜9 is connected to its drive pulley 7 and 7.
The floating pulleys 8 and 8 are arranged in a symmetrical state in which they are close to each other, and a polishing bell (10.10) is hung around each of these pulleys in a triangular shape with the bases facing each other in parallel to each other,
The floating pulley 9 is provided at the tip of a holding arm 17 which is pivotally fixed by a pin 16, and this holding arm 17 is maintained in a rotating tendency in which the abrasive belt 10 is constantly tensioned by a pneumatic cylinder mechanism 18, and is formed by both abrasive belts 10. The suppression rollers 11, 12 and their attached members for the polishing section G to be polished are equivalent to those in the above embodiment;
Although they are given the same reference numerals and their explanations are omitted, there is no difference in their properties when used.

As explained above, the present invention has the following effects.

(a) Since a swinging plate is provided on the base and a polishing section by an abrasive belt is provided on the rotation axis of the swinging plate, both edges of a narrow plate-like object can be polished at the same time. Not only that, but unlike the case of continuous rotation, it is possible to easily impart an appropriate roundness to the ridge without cutting off the edge more than necessary.

Φ) The abrasive belt is run in a facing state 11. The pressing roller for pressing against the surface to be polished is advanced and retreated at a timely manner by a pneumatic cylinder mechanism, so that the suppressing operation of the abrasive belt can be performed easily and reliably. Can be done.

(c) By adopting a pneumatic cylinder mechanism and supplying pressurized air in a timely manner, the abrasive belt can be easily brought into pressure contact with the surface to be polished only when necessary. It is sufficient to supply pressurized air at the time when the surface to be polished is inserted into the polishing section while continuously running the polishing section, which greatly facilitates the polishing work.

(d) Since a swinging plate is adopted, the connection structure of the pressure air supply pipe to the pneumatic cylinder mechanism for advancing and retracting the suppression roller can be extremely simple.

(e) If a relay pulley is provided on the axis common to the rotation axis of the oscillating plate, and torque is applied by the transmission belt from this relay pulley to the driven pulley coaxial with the drive pulley of the abrasive belt, the polishing on the oscillating plate can be Transmission for running the belt can be easily performed with simple equipment.

[Brief explanation of the drawing]

In the drawings, FIGS. 1 and 2 are a front view and a partially cutaway side view showing the polishing apparatus of the present invention in one embodiment, respectively, and FIG. 3 is a front view of only the main parts of the polishing work system of the same embodiment, Moreover, FIG. 4 is a front view showing the main parts of another embodiment. 1... Swing plate, 2... Axis, 3...
...Base, 6...Crank device, 7...
・Drive pulley, 8...Idle pulley, 9...
... Idle boob IJ-110 ... Abrasive belt, 11 ... Press roller, 12 ... Press roller, 15 ... Pneumatic cylinder mechanism,
19...Motor, 21...Driving pulley, 22...Transmission belt, 23...
Relay pulley, 24... Transmission heald, 25...
...Passive pulley, G...Grinding part, W...
... Surface to be polished.

Claims (1)

[Claims for Utility Model Registration] 1. A driving pulley 7 and a floating pulley 8.9 are provided on a swinging plate 1 that reciprocates on a base 3, and an endless abrasive belt 10 is attached to these pulleys so that a part of the abrasive grain surface is The abrasive parts G of the case and the main body, which are spanned so as to form opposing abrasive parts G, are set at a position that includes the rotation axis of the swing plate 1, and opposing abrasive belts 10 are provided on both outer sides of the abrasive parts G. Pressing rollers 11.1 for bringing them closer together
1 and 12. 11 pneumatic cylinder mechanism 1 provided with 12 near the pivot axis of the swing plate 1 and surrounded by the axis.
5. A polishing device suitable for polishing the side edges of a narrow plate-shaped body, which is made to advance and approach in a timely manner. 2. The polishing device according to claim 1, which uses only one polishing belt 10 and has a polishing portion G formed in a loop shape. 3 From the motor 19 to the drive pulley 7, the driving pulley 21, the transmission belt 22, the relay pulley 23, and the belt 2
4, and the relay pulley 23 is provided in a common axis relationship with the rotation axis of the swing plate 1. Device. 4. The polishing apparatus according to claim 1 or 2, wherein the swing plate 1 is reciprocated by a crank device 6.