SU1217736A1 - Conveyer for transporting and crushing chips - Google Patents

Description

The invention relates to devices for transporting and crushing chips and can be used in the metalworking industry and other branches of the national economy.

The purpose of the invention is to increase the reliability of operation of the conveyor by preventing jamming of chips at the place of discharge.

Figure 1 shows a conveyor for transporting and crushing chips, side view; figure 2 - section aa in figure 1; on fig.Z - node I in figure 1.

The proposed conveyor may be located, for example, along machine tools along the entire length of the workshop. The conveyor contains a drive station 1 with a drive sprocket 2 and a bypass station with a bypass sprocket 3, a looped box 4, a vertically closed traction body in the form of a chain 5 with scrapers 6 having crushing elements. The traction device is placed in the duct 4, which is divided by a partition 7 along the entire length of the conveyor into upper and lower parts 8 and 9, the partition 7 being made with sifting holes and serving as a guide for moving the chips from one sprocket to another.

The upper part 8 of the box is provided with crushing elements: on the ceiling part, cutters 10, the teeth of which are directed against the movement of the traction body, and on the walls, combs 11 with cutting edges.

In the place of material unloading in the lower part 9 of the box there is an unloading grid 12, having a straight part 13 and a curvilinear part 4, equidistant bypass sprocket 3. The straight part 13 of the unloading grid 12 is fixed on the box 4 by means of a hinge 15 and the curvilinear part 14 - by means of an elastic element 16 can be rotated in the vertical plane of the discharge grid 12 relative to the hinge 15.

Under the discharge grill 12 there is a tray 17 for removal of finely divided chips. For loading the conveyor with chips from machine tools, loading windows 18 are made.

For the operation of the conveyor, the drive station 1 is turned on. The movement from the drive sprocket 2 to the bypass sprocket 3 is transmitted

traction chains 5. Then, from metal-cutting machines, chips are fed into the loading windows 18. A received piece of chips can consist of both loach and small chips, which immediately spill through the holes in the partition 7 into the bottom 9 of the box, where it is grabbed by scrapers 6 and advances toward the discharge grid 12, waking up through which the tray 17 is sent to the container. Creeper

The chips in the upper part 8 of the duct 4 are gripped by scrapers 6, pushed by them, crushed and torn by crushing elements fixed in the upper part 8 of the duct. In this case, the fine fraction of the chips obtained in the process of crushing falls

 on the partition 7 and through the holes in it, it wakes up in the lower part 9 of the duct 4, from where it is transported to the discharge grid 12 to exit into the container.

Remains (bundle) of non-shredded chips

Q from the upper part 8 of the duct 4 is transmitted by scrapers through the drive sprocket 2 to the discharge gate 12 in the lower part 9 of the duct. If the volume of the chip bundle is larger than the gap between the grate and the bypass sprocket, the grating automatically deflects

5 due to the elastic element 16 and the hinge 15, thereby creating an optimal gap for pushing the bundle of chips with scrapers into the upper part 8 of the box 4, after which the grating automatically returns to its original position. At the same time on the grid

 crushing, breaking and sifting small chips. When the grid is returned to its original position, it is shaken, the chips that have formed after the passage of the scraper with the remains of the loach are crushed, are also sieved, the grid is self-cleaning without special forced shaking.

Thus, the grating automatically creates an optimal gap for the passage of the chip bundle, which is sent to the upper part of the box for a repeated crushing cycle, and contributes to the intensive process of sifting crushed chips.

Since only fine crushed chips of a given fraction pass through the openings of the discharge grate, chips many times from the bottom of the box pass to the upper part for repeated crushing before reaching the specified fraction.

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Claims (1)

CONVEYOR FOR TRANSPORTING AND CRUSHING CHIP, including a vertically closed traction unit with drive and bypass sprockets with scrapers located in the upper and lower parts of the box with loading windows, having crushing elements and an unloading grate with a rectilinear part located at the place of unloading, characterized in that , in order to increase the reliability of the conveyor by preventing jamming of the chips at the discharge site, the discharge grill is made with a curved part, equidist nth by-pass sprocket, and is located in the lower part of the box, while the rectilinear part of the discharge grill is fixed to the box by means of a hinge, and the curvilinear part is fixed by means of an elastic element with the possibility of rotation of the discharge grill relative to the hinge in a vertical plane. § Figure 1