JPS6134056Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a slitter-type crusher, and more specifically to its scraper structure.

<Prior art> A slitter-type crusher continuously crushes various articles by rotating rotating blade bodies having material retracting claws on the outer periphery so that their sides are in sliding contact with each other and rotating inwardly. , Utility Model Publication No. 55-41309 (Conventional Example 1) and Utility Model Publication No. 57-39067 (Conventional Example 2).

In addition, slitter-type crushers each having a fixed scraper and a rotary scraper for scraping crushed material that adheres to a rotary blade and grow are disclosed in each of the above-mentioned publications.

<Problems to be solved by the invention> By the way, in Conventional Example 1, a fixed scraper having a comb portion is provided in a vertical plane, and as a result, the discharge port becomes narrow and the discharge of the crushed material may be impaired. In many cases, especially when the object of crushing is a highly adhesive material such as polymer rubber, the crushed materials sometimes adhere to each other and become substantially lump-like, thereby defeating the purpose of crushing.

In Conventional Example 2, a rotary scraper is provided above the rotary blade, and although the discharge port is not narrowed, the highly adhesive crushed material attached to the rotary blade is removed by the rotary blade. The scope of
The scraped material may fall and adhere to the rotary blade again, thereby essentially defeating the purpose of scraping.

The object of the present invention is to eliminate mutual adhesion even with highly adhesive polymer rubber etc. by mutually combining a fixed scraper and a rotating scraper.

<Means for solving the problem> The technical means taken by the present invention to achieve its purpose is to mesh rotary blade bodies having material retracting claws on their outer peripheries so that their sides slide against each other, and to In a slitter type crusher equipped with a scraper that is driven to rotate inward and has parallel shafts in a horizontal plane and has a comb portion that engages with each rotary blade body, the scraper is composed of a fixed scraper 14 and a rotating scraper 19. The fixed scraper 14 has a circular arc portion 1 in its comb portion 16 along the outer circumference of the rotation locus of the rotary scraper 19.
A pair of fixed scrapers 14 are fixed to the casing 1 below the corresponding rotary blades 6, and the comb portions 16 thereof extend horizontally. Claw part 2 on the outer periphery
2, the claws 22 are mounted on parallel axes in a horizontal plane so as to rotate inwardly relative to each other along the arcuate portion 18, and the claws 22 of the rotary scraper 19 are similar to the combs of the fixed scraper 14. 16 and are meshed with each of the corresponding rotary blade bodies 6.

<Function> The material dropped from the input hopper 27 is scraped into the rotary blades 6, 6 by the material retraction claws 10 formed on the outer periphery of the rotary blades 6, which are rotated inwardly from each other. The material is subjected to a slitting action due to the sliding contact between the sides of the material, and is crushed into crushed material, which falls downward and is supplied from the discharge hopper 28 to a container or a conveyor.

Due to the heat generated during the slitting action, material adheres to the side surfaces and bottoms of the valleys of the rotary blade 6, but this adhered material is scraped by the comb portions 16 of the fixed scraper 14, and then The claw portion 22 of the shaped scraper 19 performs a scraping action and also releases the material, thereby preventing adhesion and growth on the rotary blade body 6.

In particular, the rotation speed of the rotary scraper 19 is set to be, for example, three times or more as compared to the rotation speed of the corresponding rotary blade 6, so that the previous material B is fed into the scraping section. Material A is scraped, and mutual adhesion of materials A and B is prevented.

<Example> Embodiments of the present invention will be described in detail with reference to the drawings.

In FIGS. 1 to 3, a casing 1 is constructed by overlapping an upper body 2 and a lower body 3, and has a crushing chamber 4 inside.

This casing 1 is mounted and fixed on a pedestal 5 shown in FIGS. 4 and 5.

6 is a rotating blade body, which includes a disc-shaped main body 7 and a collar 8.
The disc-shaped main body 7 has, for example, six material retracting claws 10 on the outer periphery.

A pair of rotary blade bodies 6 are meshed with each other so that their sides are in sliding contact with each other, and are mounted on the casing 1 with parallel shafts in a horizontal plane, and are driven by a drive mechanism 11 shown in FIG. 4 and a gear transmission shown in FIG. 3. They are rotatably driven inwardly with respect to each other via a mechanism 12.

As shown in FIGS. 10 and 11, the disc-shaped main body 7 has annular grooves 13 formed on both sides thereof.
3 has a matte finish to prevent material from adhering to it, and the material retracting claw 10 has a sharp cutting edge.

When the pair of rotary blade bodies 6 are mounted parallel to the casing 1 in the crushing chamber 4, the cutting edge of the material retraction claw 10 corresponds to the collar 8 of the rotary blade body 6.
As shown in FIG. 1, it is placed in close proximity (with a gap of about 1 mm) to the pulverizing action in this area as well.

14 is a fixed scraper;
As shown in the figure, it consists of a mounting flange 15 and a comb part 16, and the trough of the comb part 16 is formed with an arcuate surface 17 along the outer circumference of the rotation locus of the material retracting pawl 10 of the rotary blade body 6, and the lower surface of the comb part 16 is described later. A circular arc portion 18 is formed along the outer circumference of the rotation locus of the rotary scraper.

This fixed scraper 14 can be inserted into and removed from the lower body 3 of the casing 1, and its comb portion 16 is engaged with the trough of the rotary blade body 6, and the comb portion 16 extends horizontally. A cutting edge is positioned below each rotary blade body 6 on a vertical plane passing through the rotation axis and is in contact with the outer circumferential surface of the collar 8.

Therefore, the material adhering to the side surfaces and bottoms of the valleys of the pair of rotary blades 6 is scraped by the cutting edge of the stationary scraper 14 as shown by reference numeral A in FIG.

19 is a rotary scraper;
As shown in the figure, it consists of a cylindrical shaft 20 and a scraped portion 21 that is fitted onto the cylindrical shaft 20 at an axial distance and fixed by welding. The blade part 22 has a phase.
A release surface 23 and a snap surface 24 are formed on the front surface of the blade portion 22.

This rotary scraper 19 is shown in FIG.
As shown in FIG. 3, it is fitted and fixed to the rotating shaft 25,
The blade parts 22 are mounted on parallel axes in a horizontal plane so as to be driven to rotate inwardly from each other along the circular arc part 18 of the fixed scraper 14. In this case, the distance L between the axes of the rotary scraper 19 is The distance between the axes L 1 and 6 is set larger than the distance L ₁ between the axes.

Here, the claw part 22 is engaged with each of the rotary blade bodies 6 together with the comb part 16, and the material A is peeled off with the snap surface 24 of the claw part 22 and discharged inwardly and downwardly with the releasing surface 23. Partly because the distance L between the axes is large, the thrown material A is prevented from being caught by the rotary scrapers 19.

Further, each of the rotary scrapers 19 has a fourth
The rotary scraper 19 is rotated independently by a motor 25' and a transmission mechanism 26 shown in FIGS. In this embodiment, since the rotary blade body 6 has six claws 10 and the scraper 19 has two claws 22, the number of rotations is three times or more. By quickly discharging material A before the liquid comes, materials A and B are prevented from adhering to each other.

Note that it is desirable that the material contact surfaces of each of the scrapers 14 and 19 be satin finished.

In addition, in FIGS. 4 and 5, 27 indicates an input hopper, and 28 indicates an output hopper.

<Effects of the invention> According to the invention, the scraper that engages with the side surface of the lower part of the rotary blade body 6 is composed of the fixed scraper 14 having the comb portion 16 extending in the horizontal direction and the rotary scraper 19. You can expect a scraping effect on the steps.

In addition, a circular arc portion 1 is provided on the comb portion of the fixed scraper 14.
8 is formed, and the claw portions 2 of the rotary scraper 19 are rotated inwardly along the circular arc portion 18.
2 passes through, so it can be made compact even if two scrapers are provided, and the material A scraped by the fixed scraper 14 is scraped by the claw part 22 of the rotary scraper 19, and the material A is scraped in two reliable stages. There is no adhesion and growth of the material by scraping, and therefore, it can be used not only for highly adhesive materials such as Polylar rubber, but also for other materials.
It can be crushed efficiently.

[Brief explanation of the drawing]

Figure 1 is an elevational sectional view showing the main parts of the invention, Figure 2
The figure is also a plan view, Figure 3 is a front sectional view,
Fig. 4 is a front view of the entire crusher, Fig. 5 is a side view, Fig. 6 is a plan view of the fixed scraper, and Fig. 7 is a plan view of the fixed scraper.
The figures are a sectional view taken along the line X-X in Figure 6, Figure 8 is a front sectional view of the rotary scraper, Figure 9 is a side view, Figure 10 is a side view showing a part of the rotary blade, and Figure 11. is also a sectional view. 1...Casing, 6...Rotary blade body, 10...
Material retraction claw, 14...Fixed scraper, 16
...Comb part, 18...Circular part, 19...Rotary scraper, 22...Claw part.

Claims (1)

[Scope of Claim for Utility Model Registration] Rotary blade bodies having material retracting claws on the outer periphery are meshed with each other so that their sides are in sliding contact with each other, and each rotary blade is mounted with parallel shafts in a horizontal plane by being driven to rotate inwardly. In a slitter type crusher equipped with a scraper having a comb part that engages with the body, the scraper is composed of a fixed scraper 14 and a rotating scraper 19, and the fixed scraper 14 has a comb part 16 connected to the rotating scraper 19. Arc part 1 along the outer circumference of the trajectory
A pair of fixed scrapers 14 are fixed to the casing 1 below the corresponding rotary blades 6, and the comb portions 16 thereof extend horizontally. Claw part 2 on the outer periphery
2, the claws 22 are mounted on parallel axes in a horizontal plane so as to rotate inwardly relative to each other along the arcuate portion 18, and the claws 22 of the rotary scraper 19 are similar to the combs of the fixed scraper 14. A slitter-type crusher characterized in that the blades 16 and 16 are meshed with the corresponding rotary blades 6.