SU1588376A1 - Device for belt grinding of curvilinear surfaces - Google Patents

Abstract

The invention relates to equipment for shoe manufacturing and advantageously improves the quality of the treatment of the outer surface of a shaft shoe. The device has a three-part support element with a means for adjusting it in height. The middle part of the support member on the end surfaces has shelves. The side part of one of the supporting elements is made in the form of an angular two-arm lever. One end of the angular two-arm lever has grips, and the opposite interacts with a restrictive stop. The abrasive sanding belt with a closed contour is fixed on three pulleys. Include drive sanding belt. Then, by means of a ram, the middle part of the support element is often moved, which with its shelves turns the side parts of the support element. The three parts of the support element form the plane of the table. The felt boot is brought into contact with the grinding belt and the external surface is processed. 1 il.

Description

The invention relates to the shoe industry, in particular, to devices for treating the outer surface of a shaft shoe, and can be used for treating difficult-to-bead surfaces.

The purpose of the invention is to expand the technological capabilities of the device, improving the quality of processing

The drawing shows a device for belt polishing of a shaft shoe, an overall view.

The belt polishing unit of the shaft shoe has horizontally positioned support rollers 1 and 2 and a lead roller 3. A pressing table 5 is placed under the working branch of the sanding belt 4.

The rollers 1 and 2 are connected by means of supports to the cross-bar 6, which is mounted on the rod of the pneumocyliidr 7 with the possibility of vertical movement to create an operating tension of the belt 4.

The pressure table 5 is made of a composite of three plates, which in working condition form a single horizontal surface, the middle plate 8 and located on either side of it with the possibility of rotation of the side plates 9 and 10.

The middle plate 8 is fixed rigidly on the rod of the pneumatic cylinder 1 mounted on the cross bar 6. Shelves 12 and 13 are made on the end surface in the lower part of the plate 8.

Each side plate 9 and 10 is hingedly connected with a corresponding support roller 1 and 2. The free ends of the plates 9 and 10 are supported by the shelves 12 and 13 of the middle plate 8 and are provided with gripping elements 14 and 15. There are stoppers at the opposite ends of the plates 9 and 10 turning 16 and 17.

Adjustable stops 18 and 19 are attached to traverse 6, which determine the turning angle of the plates 9 and 10.

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i To obtain a minimum gap between the rollers and 2 and pressure tables 5, the ends of the side plates 9 and 10 are made with radius chamfers.

I A belt polishing unit for shaft shoes works as follows.

 Previously with the help of pneumatic {{| Lindra 7, by means of traverse 6, creates the necessary tension on the grinding belt 4. Turn on the drive of the grinding board.

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| tape 4 (not shown).

Then, by means of the pneumatic cylinder: the middle plate 8 is moved upwards to the 1st to the working branch of the belt 4. In this case, shelves 12 and 13 interact with the first plates 9 and 10 and unwrap and ;: until the contacts of the stops 16 and 17 are folded; 18 and 19. As a result, the plates 8. 9 10 form a single horizontal plane.

At the same time, the boots 20 are brought into contact with the tape. After finishing the surface treatment, the boots 20 are retracted.

Using an air cylinder 11, the medium plate 8 is lowered, which, by the shelves 1 and 13, interacting with the grippers 14 and 13, unfolds the side plates 9 and 10 before removing them from contact with the belt 4.

The design of this device allows the processing of products of a complex geometric shape with a productive method of cutting, thus obtaining a uniform, high-quality grinding surface.

Claims (1)

Apparatus of the Invention A device for tape grinding curvilinear surfaces, comprising a frame, a support element with a means of adjusting it in height, an abrasive tool in the form of a grinding belt with a closed contour mounted on three pulleys with a belt tensioning means, characterized by the purpose of expanding technological capabilities by o6ecj  liver processing of surfaces of complex curvature, predominantly felt, the supporting element is made of three parts, with the central part having shelves on the end surfaces on both sides in 20 of the lower part for supporting the lateral parts, and the lateral part of each support element is designed as an angular two-arm lever fixed on an axis, one end of which is installed with the possibility of interacting with a travel stop, and 25 opposite, has a gripper for engaging with the shelves of the central part of the support element. four G -I- --1 / P;- / / fl