JPS646981Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a roll of a leveler or a leveler feeder (hereinafter referred to as a leveler, etc.) used to straighten the curl of a coil material to be supplied to a press and flatten it.

Conventionally, work rolls used to straighten curling curls in coiled material using a leveler, etc., have multiple rolls fixed to the machine body on the lower side, and multiple rolls held on a member that moves up and down on the upper side, and the coiled material is passed between them. A structure that pushes down the movable roll is generally specified. However, in recent years, there has been an increasing demand for the winding direction of the coil to be changed depending on the product, and as shown in Fig. 1 a and b, after the coil material 2 unwound from the coil 1 is passed through the pinch rolls 3, it is The curling curls are corrected between the work rolls 4 and 4', but a
Case where the downward curl shown in the figure can be successfully corrected.b The upward curl shown in the figure is the work roll 4a.
Also, depending on the coil, even if the coil is curled in the same direction, it will be corrected in the opposite direction and will not be flat, and the work roll arrangement is fixed, making adjustment difficult. Ta.

The purpose of the present invention is to eliminate this drawback and provide a roll such as a leveler that can easily correct even if the winding curl of the coil material changes by making the position of one of the work rolls on the lower exit side adjustable. It is in. Embodiments of the present invention will be described below with reference to the drawings.

In FIG. 2, the structure of the leveler feeder 5 is shown. The leveler feeder 5 is provided with a pair of pinch rolls 3, 3 vertically facing each other in order from the inlet side to the outlet side of the coil material 2. It is set up so that it can be raised and lowered. Then 4 on the bottom
On the upper side, three work rolls 7 and 8 are provided alternately facing each other. Among the lower work rolls 7, one work roll 9 on the exit side can be adjusted in position from a position on the same line as the work roll 7 to a position spaced below it, as shown by a dashed line, as will be described later. , and is rotatably supported by the fuselage. 3 other work rolls 7
is rotatably supported by the fuselage. The three upper work rolls 8 are supported at one end by a fulcrum shaft 10 of the machine body and rotatably held by a rotatable bracket 11. A driving means 12 such as a cylinder is connected to the other end of the bracket 11 for rotating the bracket 11 to raise or push down the work roll 8 held therein. The pushed down bracket 11 comes into contact with a vertically adjustable stopper 12A provided on the machine body facing the lower surface of the tip of the bracket 11, and the amount by which the work roll 8 is pushed down is regulated. Furthermore, a pair of feed rolls 13 and 14 facing each other vertically are provided on the exit side.

The lower feed roll 13 is rotatably supported by the machine body, and the upper feed roll 14 is rotatably held at one end by a bracket 15 pivotally attached to the machine body, and is rotated toward the lower feed roll 13 by a cylinder 16. It is pushed down and pulled upward by a spring 18 via a rod 17. The lower pinch roll 3, the lower work rolls 7, 9, and the lower feed roll 13 are driven by a motor 19 via gears, belt pulleys, and belts.

In FIGS. 3 and 4, a position adjustment mechanism for the work roll 9 provided on the lower exit side is shown. Eccentric collars 22, 22 fixed by a key 21 are fitted to both ends of the shaft 20 of the work roll 9. The eccentric collar 22 is rotatably supported by the fuselage. A handle 23 for rotating the work roll 9 around the eccentric collar 22 is fixed to an extension of one end of the shaft 20, and a positioning device 24 for holding the work roll 9 at a constant rotation angle is attached to the handle 23.
It is provided at the tip of the

Next, we will discuss the effect. In FIGS. 2 and 3, the coil material 2 is inserted between the pinch rolls 3 and 3 opened vertically, and the upper pinch roll 3 is lowered and clamped by the cylinder 6. The motor 19 is started to feed the coil material 2 between the work rolls 7, 8, and 9 and between the feed rolls 13 and 14. The drive means 12 rotates the bracket 11 to push down the upper work roll 8 toward the lower work rolls 7 and 9, thereby correcting the curling of the coil material 2. If the curl cannot be properly corrected, use the handle 23 to rotate the work roll 9 around the eccentric collar 22 to adjust the position between the solid line and the dashed line shown in FIG. Successful correction can be achieved by separating the lines from the positions lined up to the desired positions. That is, when the coil material 2 having the downward curl shown in FIG. 1a is corrected with the work rolls 7 and 8, the downward curl remaining is
The work roll 9 is adjusted to be close to a position on a straight line with the work roll 7, and the work roll 9 is corrected to be flat by pushing upward somewhat forcefully. Further, when the coil material 2 having an upward winding curl shown in FIG. Bring it closer to the position and either push it up slightly or hardly push it up at all to correct it to a flat position. In addition,
In the case of the former, if there is a strong downward curl, adjust the work roll 9 to a position in line with the work roll 7 to correct it, and in the case of the latter, further downward curling occurs. If curling occurs, it can be corrected by bringing the work roll 9 closer to a position on a straight line with the work roll 7. Therefore, any upward or downward curling of the coil material 2 can be easily corrected. The feed roll 15 is pushed down by the cylinder 16, and the coil material 2 is sandwiched between it and the feed roll 13 and fed out.

As is clear from the above description, according to the present invention, even if the winding curl changes upward or downward due to a change in the unwinding side of the coil, or if the winding curl is in the same direction and the correction is too strong, the lower side By adjusting the position of the exit side work roll so that it is on the same line as the work roll 7 and a required position that is spaced downward from there, the coil material can be adjusted to be flattened very easily, which has a practical effect. The advantages are extremely large.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of the conventional example, Fig. 2 is a vertical cross-sectional side view of the main part of the leveler feeder, and Fig. 3 is the − of Fig. 2.
The sectional view, FIG. 4, is a - sectional view of FIG. 1 is a coil, 2 is a coil material, 3 is a pinch roll, 4 is a work roll, 5 is a leveler feeder, 6
is a cylinder, 7 is a work roll, 8 is a work roll, 9 is a work roll, 10 is a fulcrum shaft, 11 is a bracket, 12 is a driving means, 13 is a feed roll, 14 is a feed roll, 15 is a bracket,
16 is a cylinder, 17 is a rod, 18 is a spring, 19 is a motor, 20 is a shaft, 21 is a key, 22
is an eccentric collar, 23 is a handle, and 24 is a positioning tool.

Claims (1)

[Scope of utility model registration request] The coil material to be supplied to the press is stored in a plurality of lower work rolls arranged in the feeding direction of the coil material and rotatably provided on the machine body, and a plurality of upper work rolls arranged and rotatably provided on the machine body on a vertically movable bracket. In a roll such as a leveler that is corrected with a work roll, one of the lower work rolls on the exit side is supported eccentrically, and from a position lined up with the other lower work roll to a position spaced below it. A roll for a leveler, etc., characterized in that its position can be adjusted arbitrarily.