JP2006043529A - Roll mill - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a treating material from flowing out of a clearance between a shuttering board and a roll, in a roll mill having the shuttering boards for shutting up both ends between rolls. <P>SOLUTION: In the roll mill in which rolls (2), (3), (4) are arranged adjacently to each other and which performs decentralized milling treatment of the treating material, there are the shuttering boards (5) which come into contact therewith with minute clearance at both ends of rolls (2), (3). The shuttering boards (5) are freely movably supported so that contact pressure with the rolls (2), (3) at both sides may be almost equal. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  TECHNICAL FIELD The present invention relates to a roll mill used for processing a kneaded material in a manufacturing process of various products such as printing inks, paints, ceramics, chemicals, foods, and electronic component materials.

  A roll mill that adjoins a plurality of, for example, three rolls, closes the end portion between the rolls with a slat, and throws a treatment material between the rolls to disperse the kneaded meat has been widely used (for example, Patent Document 1). The dam plate used in this roll mill is fixedly held so as to stand still with a fine clearance that does not allow the processing material to flow out from the roll surface during operation of the roll mill.

  FIG. 6 shows an example of a conventional mounting structure of a dam plate. A base bracket (54) is attached to a fixture (53) fixed to a frame (52) of a roll mill body (51) that supports a roll (50). Is fixed with screws (55), and the base plate side bracket (57) is pivotally attached to the tip of the base end side bracket (54) with a pin (56), and the base plate is attached to the lower part of the base plate side bracket (57). (58) is fixed with screws (59). Further, a handle (60) is provided above the bracket side bracket (57), and the handle (58) is rotated in the direction of the arrow (61) by the handle (60) to rise from the roll (50). Or the adjustment screw (62) provided at the lower end is rotated in the direction opposite to the arrow (61) to the position where it comes into contact with the fixing nut (63) provided on the proximal bracket (54). A minute gap (64) is made to face the roll (50) so that the processing material does not flow out. In addition, rotation of the said board (58) is carried out by hooking the arc-shaped stopper (66) provided in the board side bracket (57) on the hook member (65) formed in the base end side bracket (54). Is blocked.

The lower end of the weir plate (58) is formed in a substantially mountain shape with arcuate curved surfaces on both sides and a central portion projecting downward so as to confront each other with a minute gap (64) along the surface of the adjacent roll. However, this gap is extremely small, and therefore the slat plate is actually in contact with one adjacent roll in close contact with each other, and a large gap is often formed between the other roll. When such a state occurs, the contact pressure on the lower side of the bottom plate facing each roll becomes uneven and material leakage occurs, especially when the processing material is an abrasive material, Has been promoted, and the gap has been further expanded to prevent the processing material from being prevented from flowing out.
Utility Model No. 2510235 (0006, FIG. 1, FIG. 2)

  The problem to be solved by the present invention is that in a conventional roll mill such as a three-roll mill, the bottom plate between the rolls does not come into close contact with one roll, and the lower side of the bottom plate is adjacent to the adjacent roll. It is to provide a roll mill that is in contact with almost the same pressure.

  According to the present invention, in a roll mill in which a plurality of rolls are adjacent to each other and the end portions between the rolls are closed with a claw plate, and the processing material introduced between the rolls is subjected to a kneading dispersion treatment, the above-mentioned baffle plate is free in the adjacent roll direction. A roll mill characterized by being movably supported is provided, and the above-described problems are solved.

  In the above roll mill, a roll mill is provided in which the free movement of the weir plate is performed using a linear motion bearing such as a linear guide or a linear bush.

  Since the present invention is configured as described above and supports the crest that closes the end portion between the rolls so as to be freely movable in the roll direction, when the claw plate approaches one of the rolls and the contact pressure increases, the other When the plate moves freely in the roll direction and both sides of the bottom of the plate come into contact with the roll with almost the same pressure, the movement of the plate stops and is not located on one side. Can be prevented. Moreover, when the above-mentioned sway plate is moved using a linear motion bearing, the sway plate moves accurately following the change in the gap even during operation, and the sway plate can always be positioned in an appropriate state.

  FIG. 1 is an explanatory view showing a basic structure of an embodiment in which the present invention is applied to a three-roll mill. The roll mill main body (1) (see FIG. 2) includes a rear roll (2) and a middle roll (3). And a front roll (4), a piercing plate (5) is provided between both ends of the rear roll (2) and the middle roll (3), and is inserted between the rear roll (2) and the middle roll (3). The treated material (not shown) is subjected to a kneaded dispersion process, transferred to the front roll (4), and scraped off by the scraper (6). As is well known, the gap between the rolls can be adjusted, and the dam plate (5) faces the rolls (2) and (3) with a minute gap. In the conventional roll mill, this dam plate (5) is fixedly provided on the roll mill main body so as not to move during operation. However, in the present invention, the dam plate (5) is supported so as to be freely movable in the adjacent roll direction. Has been. The amount of movement (Δx) of this free movement is very small and is preferably about 5 mm or less, usually about 2.5 mm to 0.5 mm according to the results of the experiment. Can be set to

  2 to 4 show an embodiment of a structure for supporting the dam plate (5) so as to be freely movable. A fixture (7) is fixed to the frame of the roll mill body (1), and the dam plate ( 5) is attached to the support bracket (8). The support bracket (8) has a base end side bracket (9) and a base plate side bracket (11) pivotally attached to the base end side bracket (9) by a pin (10), A plate (5) is fixed to the plate side bracket (11) with a screw (12). These configurations are basically the same as those of the conventional example shown in FIG.

  The fixture (7) includes a guide rail (13) extending along a virtual line (not shown) orthogonal to the axis of the rolls (2) and (3), and screws ( A linear guide (17) having a stopper (15) fixed at 14) and having a linear bearing built in with a screw (16) is attached to the lower surface of the base end side bracket (9). ) Is slidably engaged with the guide rail (13).

  In the embodiment shown in FIGS. 2 to 4, when the weir plate (5) comes close to the one roll, the weir plate (5) is pushed toward the other roll by the contact pressure, and the linear guide (17 ) Moves along the guide rail (13), so that the dam plate (5) attached to the support bracket (8) moves to a position where the contact pressures on both sides of the dam plate are almost equal. Stop. The moving range of the linear guide (17) is regulated at a position where it hits the stopper (15).

  FIG. 5 shows another embodiment for supporting the dam plate (5) so as to be freely movable. A fixture (19) having a receiving groove (18) is fixed to the frame of the roll mill body. The dam plate (5) is attached to the support bracket (20), and the support bracket (20) is fitted into the receiving groove (18) of the fixture (19) and fixed by the screw (21). An end side bracket (22) and a base plate side bracket (23) pivotally attached to the base end side bracket (22) are provided, and the base plate (5) is attached to the base plate (23) by a screw (24). It is fixed with.

  The base end side bracket (22) has arms (25) and (25) protruding in a facing state, and a pin-shaped guide rail (26) is provided between the arms (25) and (25). . On the other hand, a linear bush (27) with a built-in linear bearing is provided on the bracket side bracket (23), and the linear bush (27) is slidably engaged with the guide rail (26). ing.

  With the above configuration, the bracket-side bracket (23) to which the plate (5) is attached can freely move along the guide rail (26), and the linear bush (27) is armed in the moving range. It is regulated at a position corresponding to (25).

  In the above embodiment, if the clamp (not shown) is provided at an appropriate position of the linear guide or the linear bush and the clamp is pressed against the linear guide and fastened, the dam plate can be fixed. Further, instead of the linear motion bearing, an appropriate slider or the like may be provided at an appropriate position so that the slat plate freely moves in the adjacent roll direction.

Explanatory drawing which shows the basic structure of one Example of this invention. The front view of the Example which shows the support structure of a weir board. The side view which shows the relationship between a fixture and a dam plate. The top view which shows the relationship between a fixture and a dam plate. The top view of the other Example which shows the support structure of a weir board. The front view which shows the support structure of the conventional dam plate.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Roll mill main body 2 Rear roll 3 Middle roll 4 Front roll 5 Shear plate 7, 19 Mounting tool 8, 20 Support bracket 9, 22 Base end side bracket 11, 23 Shear plate side bracket 13, 26 Guide rail 17 Linear guide 27 Linear bush

Claims (7)

  In a roll mill in which a plurality of rolls are adjacent and the end portions between the rolls are closed with a slat plate, and the processing material introduced between the rolls is kneaded and dispersed, the slat plate is supported so as to be freely movable in the adjacent roll direction A roll mill characterized by   2. The roll mill according to claim 1, wherein a fixture is fixed to a frame of the roll mill body, the dam plate is attached to a support bracket, and the support bracket is movably connected to the fixture.   The roll mill according to claim 2, wherein the fixture includes a guide rail, and the support bracket includes a linear guide slidably engaged with the guide rail.   The roll mill according to claim 3, wherein the fixture includes a stopper that regulates a moving range of the linear guide.   A fixture is fixed to the frame of the roll mill main body, the slat plate is attached to a support bracket, the support bracket includes a base end side bracket and a base plate side bracket, and the base end side bracket is fixed to the fixture. The roll mill according to claim 1, wherein the bottom plate side bracket is movably connected to the base end side bracket.   The roll mill according to claim 5, wherein the base end side bracket has a guide rail, and the bottom plate side bracket has a linear bush slidably engaged with the guide rail.   The roll mill according to claim 6, wherein the base end side bracket has an arm protruding in a facing state, and the guide rail is provided between the arms.

Images