JP2510235Y2 - Roll mill - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roll mill such as a triple roll mill.

[0002]

2. Description of the Related Art In a three-roll mill generally used for dispersion treatment of printing ink, etc., a first roll pressed against
The material is dispersed by the shearing force due to the rotation between the roll and the second roll and between the second roll and the third roll, but the material which is not sufficiently dispersed tends to move and gather at both ends of the roll. It is in. Therefore, conventionally, materials gathered at both ends are scraped with a spatula and returned to the central portion, collected in another container and redispersed, or discarded.

[0003]

DISCLOSURE OF THE INVENTION The object of the present invention is to enable an undispersed material gathering at both ends of the roll to be automatically returned to the center of the roll for re-dispersion in the roll mill as described above. To provide a rolled roll.

[0004]

According to the present invention, the end rolls rotating at a higher speed than the rolls are pressed against both ends of the final roll,
A roll mill characterized in that a scraper is provided on the peripheral surface of the end roll to direct the tip toward the center of the supply tank, and the undispersed material is automatically returned to the center of the roll. It is provided and the above-mentioned object is achieved.

[0005]

The present invention can be applied to various roll mills having a plurality of rolls, and an embodiment in which the present invention is applied to a three roll mill will be described below. In the figure, a first roll (1), a second roll (2) and a third roll
The gears (3) are rotatably supported by bearings (4) ... Provided on a frame (not shown) and connected to drive sources by gears (5), (6), (7), ( 8), and by moving the bearing portion by an appropriate moving means, between the first roll (1) and the second roll (2) and between the second roll (2). The gap between the third rolls (3) is adjusted.

The first roll (1) and the second roll (2)
Chamfers (9) and (10) are provided to face each other to form a treatment material supply tank (11), and the peripheral surface of the third roll (3) (final roll) As is well known, a scraper (12) for scraping the dispersed material is provided in the apparatus.

At both ends of the third roll (3), end rolls (13), (13) which rotate at a higher speed than the roll (3) are pressed against each other. The end rolls (13) and (13) are bearings (1
4), Gears (16), (17) provided on the shaft (15) supported by (14)
Although it is rotated at a higher speed than the third roll (3) through the above, it may be directly rotated by another driving means. The end rolls (13), (13) and the third roll (3)
Appropriate moving means is provided on the bearing portion so as to adjust the gap therebetween.

On the peripheral surfaces of the end rolls (13), (13), scrapers (18), whose tips are directed toward the central part of the supply tank (11),
(18) is provided. In the figure, the end roll (1
3), (13) and the scrapers (18), (18) are fixedly provided at the positions shown in FIG. 2, but the end rolls (13), (13) and the scraper (18) are fixed. ), (18) are provided so as to be movable along the shaft (15), or the scrapers (18), (18) are provided so that the directions of the tips thereof can be appropriately moved, and the treatment in the supply tank (11) is performed. The material distribution may be uniform.

Thus, the processing material supplied to the supply tank (11) is rotated between the first roll (1) and the second roll (2) by rotating the respective rolls. A shearing force is applied between the second roll (2) and the third roll (3), and the dispersion is dispersed and scraped from the third roll (3) by the scraper (12). Further, the undispersed treatment material gradually gathers at both ends of the roll while it reaches the third roll from the first roll.
The end rolls (13) and (13) are in pressure contact with both ends of the roll (3), and the end rolls (13) and (13) are connected to the third roll (3). ), The end roll (1
3), moved to the (13) side, scraped off from the end rolls (13), (13) by the scrapers (18), (18) and returned to the central part of the supply tank (11). . In this way, the treatment material gathers in the center of the roll, is sufficiently dispersed, and is scraped off by the scraper (12) provided on the third roll (3).

Although the above embodiment describes a three-roll mill, the present invention can be applied to various multiple-roll mills, and end rolls are provided at both ends of the final roll of various roll mills. It may be arranged such that it is returned to the center of the supply tank by a scraper with a scraper.

[0011]

The present invention is constructed as described above, and the end rolls are pressed against both ends of the final roll, and the end rolls are rotated at a higher speed than the final roll. Since the scraper with the tip facing the central part of the supply tank was provided on the peripheral surface of the end roll, the undispersed treatment material gathered at both ends of the final roll is not covered by the end roll.
It is automatically returned to the central part of the supply tank via the loop, so that the dispersion treatment can be reliably performed thereafter.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of the present invention.

FIG. 2 is a plan view showing an embodiment of the present invention.

[Explanation of symbols]

1 1st roll 2 2nd roll 3 3rd roll 11 Supply tank 13 End roll 18 Scraper

Claims (1)

(57) [Scope of utility model registration request] 1. A roll mill in which a material supplied to a supply tank provided between a first roll and a second roll is sequentially dispersed between a plurality of parallel rolls, and both ends of a final roll are provided. End roll which rotates at a higher speed than the final roll is pressure-welded to the end portion, and the tip end of the above-mentioned supply tank is used to return the undispersed material collected at the end of the final roll to the central part of the roll. A roll mill characterized in that a scraper directed toward the center is provided on the peripheral surface of the end roll.