JPH074617B2 - Squeezing roller - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a squeezing roller used as a device for removing coolant oil adhering to a rolled material in a rolling mill for steel, stainless steel, copper and other strip steels. It is a thing.

(Prior Art) The squeezing roller is rotated in contact with the rolled material due to oil removal during rolling, but the surface thereof is scratched by dust and the like adhering during rolling. These scratches damage the rolled material, which is a product, and cause damage such as defective products.

Therefore, in order to repair scratches on the squeezing roller by polishing or the like, it is necessary to replace the spare roller with a spare roller in a short time.

Conventionally, the squeezing rollers have been recombined by being directly carried by an operator, but the work of obtaining such squeezing requires a great deal of labor and is extremely inefficient in working efficiency. Since the jing roller is heavy and difficult to handle, there are problems such as danger.

For this reason, the squeezing rollers are recombined by the method shown in FIG.

In this method, after removing the upper and lower squeezing rollers (21) (22) installed in the guide device of the rolling mill from the machine frame (23), the porter bar (25) having the balance wait (24) is installed. Install the replacement squeezing roller (21) or (22) in a horizontal state, and suspend the porter bar (25) so that it is horizontal by the crane (26), and in this state, swing the machine frame (23). The squeezing roller (21) or (23) is attached by inserting the squeezing roller at the position where the squeezing roller is provided.

(Problems to be Solved by the Invention) However, in the upper and lower squeezing rollers (21) (22) conventionally installed in the guide device of the rolling mill,
Upper squeezing roller (21) that moves up and down for passing
As shown in FIG. 4, the guide (27) is fixed to the machine frame (23), and the bearing portion (29) is attached to the guide rod (28) inserted through the guide (27). Since the bearing portion (29) is supported by the cylinder (30), as shown in FIG. 5, the side guide (31), the pinch roller (32), and the hood (33) arranged on the rolling mill are arranged. It is extremely difficult to remove the bearing part (29) of the upper squeezing roller (21) from the guide rod (28) in a narrow line where the parts etc. are adjacent to each other. It was Further, since the lower squeezing roller (22) is also fixed to the machine frame (23), it takes time to remove it.

Further, since the squeezing rollers (21) (22) are hung while the porter bar (25) equipped with the balance weight (24) is being reassembled, the balance weight (24) is adjusted to obtain the horizontality of the entire porter bar. Is extremely difficult and the work becomes unstable and dangerous.
There is a risk of contact with other equipment and damage.

Also, the upper and lower squeezing rollers (21) (22) are addressed to
Since it is replaced by the above-mentioned work, it takes time and the rolling down time becomes long, and the work of setting the upper and lower squeezing rollers (21) (22) accurately on the pass line of the rolling mill There is a problem that it is difficult and time-consuming to accurately adjust the pressure between the rollers according to the oil film thickness of the rolled material.

An object of the present invention is to provide a squeezing roller that solves such problems.

(Means for Solving the Problems) In order to achieve the above object, the squeezing roller of the present invention is such that at least one of the upper and lower squeezing rollers can move up and down between the roller frames on both sides. The squeezing roller unit that is erected in this manner, a horizontal guide member that allows the squeezing roller unit to be placed and inserted into and pulled out of a predetermined position in the machine frame, and is installed in the machine frame. It is characterized by comprising an elevating mechanism for elevating the squeezing roller unit in the machine frame.

(Function) When reassembling the squeegee roller, if the squeegee roller unit, which is integrally provided with the upper and lower squeegee rollers, is placed on the horizontal guide member and inserted into the machine frame, Is easily installed in place in the machine frame.

Then, by operating an elevating mechanism for elevating the squeezing roller unit, the upper and lower squeezing rollers are set in the pass line of the rolling mill, and in this state, the upper and lower squeezing rollers are arranged so as to be vertically movable along the unit. By moving the squeezing roller up and down, the pressure can be easily and accurately adjusted according to the oil film thickness of the rolled material passing between the rollers.

Further, by pulling out the squeezing roller unit from the inside of the machine frame onto the horizontal guide member, the upper and lower squeezing rollers can be integrally conveyed to a reassembling place by a crane or the like as in the case of assembling.

(Example) Next, an example of the present invention will be described with reference to the drawings.
(1) is a squeezing roller unit, in which an upper squeezing roller (3) is installed between upper portions of both roller frames (2) and (2), and the upper squeezing roller (3) is provided.
Bearings (4) (4) on both ends of the roller frame (2) on both sides
A lower squeezing roller (5), which is vertically slidably supported by vertical guide rods (2a) (2a) protruding from (2), and which is provided below the upper squeezing roller (3). Both end bearings (6) (6) are fixed to both side roller frames (2) and (2), and further brackets (7) projecting from the lower outer side surface of both side roller frames (2) and (2)
The lower end of the cylinder (8) (8) is pivotally attached to the upper part, and the piston rod (8a) of the cylinder (8) is connected to the bearing (4) of the upper squeezing roller (3) to form the cylinder (8). The upper squeezing roller (3) is moved up and down along the vertical guide rods (2a) (2a) and the wheels (9) are attached to the lower ends of the roller frames (2) (2) on both sides.
(9) is attached.

(10) is a handshake for pulling out, which is projected on the outer surface of the one side roller frame (2).

(11) is a machine frame of the rolling mill, which is internally provided with a horizontal fixed rail (12) for receiving the squeezing roller unit (1) introduced from the outside, and at the same time, the horizontal fixed rail (12) is The squeezing roller is configured such that the upper ends of the rods of the squeezing roller unit (1) are brought into contact with the lower ends of the roller frames (2) and (2) of the squeezing roller unit (1) at the lower portions of both ends. A lifting cylinder (13) for lifting the unit (1) is attached.

(14) (14) are stoppers fixed at predetermined positions of the machine frame (11), and abutting pieces (2b) (2b) protruding from the roller frames (2) and (2) of the squeezing roller unit (1). ) Of the squeezing roller unit (1) is controlled by receiving the upper surface of the), and the upper and lower squeezing rollers (3) and (5) of the squeezing roller unit (1) are in the pass line to the rolling mill. To hold.

(15) is the introduction of the squeezing roller unit (1),
A tilting rail for transfer, one end of which is pivotally attached to one end of a horizontal fixed rail (12) on the drawer side so as to be vertically rotatable. In a normal state, the tilting rail is vertically hung down, and a squeezing roller assembly is provided. During replacement, the stay (16) is supported horizontally on the floor surface.

(17) is a horizontal rod threaded inwardly to the roller frame (2) in the lower part of the contact piece (2b), and by rotating a fixed handle (20) fixed to the base end of the horizontal rod. The squeezing roller unit (1) is fixed at a predetermined position in the machine frame (11) by crimping the tip of the machine frame (11).

(18) is a crane for mounting or lifting the squeezing roller unit (1) on the transfer tilting rail (15), and (19) is a hood.

When it becomes necessary to replace the upper and lower squeezing rollers (3) and (5) arranged in the machine casing (11), first, the fixed handle (20) is rotated to move the skid to the machine casing (11). After unlocking the squeezing unit (1), the lifting cylinder (13) is operated to lower the squeezing roller unit (1), so that the squeezing roller unit (1) is fixed horizontally. (12) Place on top.

Next, the transfer tilting rail (15) is rotated upward so as to be continuous with the horizontal fixed rail (12) on the same horizontal plane, supported by the stay (16) and squeezing roller unit ( Allows withdrawal of 1). Grasp the handshake (10) from this squeezing roller unit (1), pull it out from the fixed rail (12) to the tilt rail (15) outside the line, and then lift it by the crane (18) to reassemble. Transfer to the place.

Next, the upper and lower squeezing rollers (3) as replacement rollers
The squeezing roller unit (1) incorporating (5) is lifted by the crane (18) and the tilting rail (15)
Place it on the rail, insert it from the rail (15) into the fixed rail (12) in the machine frame (11), and then operate the lifting cylinder (13) to raise the squeezing roller unit (1). Then, it reaches the stopper (14) and holds the upper and lower squeezing rollers (3) and (5) on the pass line.
Then, the fixed handle (20) is rotated to fix the squeezing roller unit (1) at that position.

In the above embodiment, the squeezing roller unit (1) is inserted into and pulled out of the machine casing (11).
Instead of using the tilting rail (15), for example, as shown in FIG. 3, the squeezing roller unit (1) may be placed on the carriage and the movement may be performed from the carriage. As a mechanism for raising and lowering the squeezing roller unit (1), an appropriate raising / lowering mechanism such as a screw mechanism is used instead of the cylinder (13), and among the upper and lower squeezing rollers constituting the squeezing roller unit. Although the upper squeezing roller can be moved up and down, the lower squeezing roller may be moved up and down, in short, it is installed between both roller frames so that at least one of the upper and lower squeezing rollers can be moved up and down. You can leave it.

(Effects of the Invention) As described above, according to the squeezing roller of the present invention,
A squeezing roller unit in which upper and lower squeezing rollers are installed between the roller frames on both sides so that at least one of the squeezing rollers can be raised and lowered.
A horizontal guide member that allows this squeezing roller unit to be placed and inserted into and withdrawn from a predetermined position in the machine frame, and is arranged in the machine frame to raise and lower the squeezing roller unit in the machine frame. Since it is composed of a lifting mechanism, the unstable and dangerous squeezing roller reassembling work by the porter bar and the crane as in the past can be eliminated, and the squeezing roller reassembling work can be performed stably and safely. Moreover, since the upper and lower squeezing rollers are unitized as a unit and the squeezing roller unit is exchanged, the reassembling work can be performed smoothly in a short time, and the facility operation rate and the productivity are improved. Is something that can be done.

Further, since the squeezing roller unit is inserted into the machine frame through the horizontal guide member,
It is possible to insert the squeegee roller in the machine frame in a narrow line accurately and easily without adversely affecting other equipment.

Further, after inserting the squeezing roller unit into the machine frame, the elevating mechanism provided in the machine frame is operated to elevate and lower the entire squeezing roller unit so that it is installed between the frames of the unit. The upper and lower squeezing rollers can be set easily and accurately on the pass line of the rolling mill, and by moving either the upper or lower squeezing roller up or down, the rollers bend and pass between them. The oil film thickness of the rolled material can be controlled easily and accurately, and optimum oil removal can be obtained.

[Brief description of drawings]

1 to 3 show an embodiment of the present invention.
FIG. 1 is a front view, FIG. 2 is a side view, FIG. 3 is a simplified front view when a reassembling trolley is used, and FIG. 4 is a front view for explaining a conventional squeezing roller reassembling method. FIG. 5 is a side view thereof. (1) …… Squeezing roller unit, (2)
(2) …… Both side roller frames, (3) …… Upper squeezing roller, (4) …… Bearing, (5) …… Lower squeezing roller, (6) …… Bearing, (8) …… Cylinder,
(11) …… Machine frame, (12) …… Horizontal fixed rail, (13)…
… Lifting cylinder, (15) …… Tilt rail.

Claims (1)

[Claims] 1. A squeezing roller unit comprising a pair of upper and lower squeezing rollers mounted between two roller frames so that at least one of the squeezing rollers can be moved up and down, and the squeezing roller unit is mounted on the squeezing roller unit. And a horizontal guide member that can be inserted into and withdrawn from a predetermined position in the machine frame, and an elevating mechanism that is installed in the machine frame and moves up and down the squeezing roller unit in the machine frame. A squeezing roller.