JPS6128685Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a vertical steel strip polishing device that removes scale from a steel strip by projecting and colliding an abrasive material onto a steel strip moving in a vertical direction.

In horizontal strip steel polishing equipment, which performs polishing by projecting abrasive material while moving the strip horizontally, the projected abrasive material remains on the steel strip, so this residual abrasive material must be removed. This method requires a device to remove the abrasive material, and the remaining abrasive material interferes with the cleaning process, reducing the cleaning effect. For this reason, in recent years, a vertical steel strip cleaning device has been developed that cleans the strip while moving it vertically. Abrasive material and scale leaked from the strip passage opening at the bottom of the cabinet enter between the steel strip guide roller and the steel strip, damaging the steel strip and the guide roller, and making it impossible for the guide roller to guide the steel strip. There were problems such as.

The present invention has been completed with the aim of providing a vertical strip steel grinding device that solves the above-mentioned problems.Hereinafter, the present invention will be described in detail with reference to the illustrated embodiments.

1 is a cabinet constituting a cleaning room,
The cabinet 1 is installed via leg members (not shown). A steel band passing port 5 is provided between the bottom plate portions 4, 4 of the cabinet 1, and the bottom plate portions 4, 4 are inclined to form a mountain shape with the steel band passing port 5 as the apex. When the abrasive material and peeled scale fall onto the bottom plate parts 4, 4, they slide down and are sent to the storage parts 1a, 1a on both sides of the bottom part of the cabinet 1, and the storage parts 1a, 1a is provided with screw conveyors 3, 3 for collecting the projected abrasive material. Further, below the cabinet 1, a steel strip P is placed toward the steel strip passage port 5.
A guide roller 2 is provided to vertically guide the. Further, in the bottom part of the cabinet 1, a partition plate 6 is provided above one of the bottom plate parts 4 to form a gap H between the upper end of the inclined part 6a and the steel strip P that moves in the vertical direction. Its lower end is close to the bottom plate part 4 at a position facing the screw conveyor 3, and a nozzle storage part 7 is formed between the partition plate 6 and the bottom plate part 4. A nozzle 8 is provided that injects compressed air toward the gap H between the upper end of 6 and the steel strip P,
The nozzle 8 is connected to a compressed air source (not shown).

With this structure, the steel strip P, which is being moved horizontally, is directed vertically via the guide rollers 2, and passed through the cabinet 1 in the vertical direction through the steel strip passage port 5, while being passed through the nozzle 8 into the gap. While compressed air is injected toward H, an abrasive material is projected from the projection device above and collides with the steel strip P, and the steel strip P is descaled and sent to the next process.
Further, most of the scales peeled off from the projected abrasive material and the steel strip P are guided by the inclined part 6a of the partition plate 6 and the bottom plate part 4, and enter the storage parts 1a on both sides of the bottom part of the cabinet 1. , screw conveyor 3
is discharged from the cabinet 1. Part of the projected abrasive material, scale, etc. is placed on the partition plate 6.
Even if an attempt is made to enter the gap H formed between the upper end and the steel strip P, compressed air is injected from the nozzle 8 provided in the nozzle housing 7, so the compressed air blows it away. Therefore, the projected abrasive materials, scales, etc. fall into the strip passing port 5 through the gap H between the upper end of the partition plate 6 and the steel strip P, and from this strip passing port 5, they pass between the strip P and the guide roller 2. Accurately prevent the product from entering the gap. In the above embodiment, the partition plate 6 is provided only above one of the bottom plate parts 4, but if the width of the steel strip P is much narrower than the width of the cabinet 1, the partition plate 6 is provided between the front and rear surfaces of the cabinet 1 and the steel strip P. A large space is created between both ends of the strip, and the abrasive material that is diffusely reflected inside the cabinet 1 jumps out from this space into the nozzle storage section 7 between the partition plate 6 and the bottom plate 4, and the strip passes through the strip passage opening 5. It may pass through the gap between the guide roller 2 and the steel strip P and fall between the guide roller 2 and the steel strip P. A partition plate may be provided to form a nozzle accommodating portion, and a nozzle may also be provided in this nozzle accommodating portion.

As is clear from the description of the embodiments described above, the present invention provides a partition plate whose upper end is located above the steel band passage opening in the cabinet, and a nozzle storage portion between the partition plate and the bottom plate portion inside the cabinet. Since we installed a nozzle that blows out compressed air toward the gap between the vertically moving steel strip and the upper end of the partition plate, the abrasive material that has been thrown and the peeled off scale are removed from the gap H between the partition plate and the steel strip. There is almost no chance that the abrasive material will fall through the strip passageway onto the guide roller, and therefore, the abrasive material that has been projected will enter between the guide roller and the strip.
It prevents damage to their surfaces, has a simple structure, can be provided at low cost, and has extremely great practical value.

[Brief explanation of the drawing]

The drawing is a partially cutaway front view showing an embodiment of the present invention. 1: Cabinet, 2: Guide roller, 3: Screw conveyor, 4: Bottom plate section, 5: Steel band passage port, 6: Partition plate, 7: Nozzle storage section, 8: Nozzle.

Claims (1)

[Scope of utility model registration request] A strip steel passing port 5 is provided between the bottom plate portions 4, 4 of the vertical cabinet 1, and screw conveyors 3, 3 for collecting the projected abrasive material are provided on both sides of the bottom portion of the cabinet 1. Therein is a sloped part 6 for guiding the projected abrasive material projected in the cabinet 1 toward the screw conveyor 3.
A partition plate 6 having a length a is stretched to form a nozzle storage part 7 between the partition plate 6 and the bottom plate part 4, and further,
The nozzle storage portion 7 is provided with a nozzle 8 that injects compressed air toward the gap formed between the upper end of the partition plate 6 and the steel strip that passes through the steel strip passage port 5 and moves in the vertical direction. A strip steel grinding device characterized by being provided with.