JPH06154810A - Sizing press - Google Patents

Abstract

PURPOSE:To effectively prevent the generation of buckling and twist of a material and to reduce the cost of equipment by using a pair of press rolls and feed rollers and measuring rolls which are provided on the inlet and outlet sides of dies. CONSTITUTION:A sizing press having the dies 2a, 2b with which the edging pressing of the material is executed and a pair of upper and lower press rolls 5, 6 which are provided in the approximately middle part in the longitudinal direction of these dies and with which both faces in the approximately middle part in the width direction of the material are pressed down is provided. The feed rollers 16a, 16b and measuring rolls 23a, 23b with which the entire width of the material can be pressed are paired and provided on at least two places of the inlet and outlet sides of the dies. In this way, the generation of buckling and twist of the material is effectively prevented, measuring of the material and feeding of a short material are enabled and also the feed rollers and measuring rolls are provided in the min. space, so the cost of equipment is reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sizing press for materials such as slabs.

[0002]

2. Description of the Related Art It has been studied to perform width reduction of a material such as a slab by a sizing press capable of obtaining a large width reduction amount. When the width reduction is performed by the sizing press, the plate width is about 1200 mm or more and the plate thickness is about 2 mm.
Material of 50-300mm, width reduction of 300-3 at one time
If it is 50 mm or more, the material will buckle.

In order to prevent this buckling, it is possible to provide a pressing roll for pressing the surface of the material.

FIG. 3 is a plan view showing the outline of a conventional sizing press, and FIG. 4 is a view taken in the direction of arrows IV-IV in FIG. 3, where 1 is a housing, 2a and 2b are opposed to each other by reduction cylinders 3a and 3b, etc. A pair of left and right molds 5 and 6 which are activated to width-reduce the material 4 such as a slab, 5 and 6 are provided in the vicinity of the contact points between the parallel inner surfaces of the respective molds 2a and 2b and the entrance side inclined portion and A pair of upper and lower pressing rolls for pressing the substantially central portion in the width direction from above and below to prevent the buckling of the material 4, and 7 are arranged on the inlet side and the outlet side of the housing and driven by a drive device (not shown). A pinch roll 8 for feeding the material 4 to the molds 2a, 2b, and a table roll 8 arranged at a predetermined interval on the inlet side and the outlet side of the pinch roll 7. Further, 9 is a measuring roll, which is arranged above the pinch roll 7 and connected to a rotation sensor (not shown), and has a capability of measuring the material 4.

[0005]

However, in the above-described sizing press, the press rolls 5 and 6 are provided only near the central portion in the longitudinal direction of the molds 2a and 2b for preventing buckling, Therefore, it is not possible to prevent buckling or twisting of the material 4 in the immediate vicinity of the entrance side and the exit side of the molds 2a and 2b, and the material 4 cannot be fed by the pressing rolls 5 and 6 having no driving force. Therefore, in the case of a short material having a length that can be accommodated in the housing 1, there is a problem that it cannot be delivered to the delivery side of the molds 2a and 2b during the width reduction.

An object of the present invention is to provide a sizing press capable of preventing buckling and twisting of a material during width reduction and capable of feeding and measuring the material.

[0007]

DISCLOSURE OF THE INVENTION The present invention provides a die for width-pressing a material, and a pair of upper and lower parts which are provided at approximately the central portion in the longitudinal direction of the die and press both sides of the approximately central portion in the material width direction. In a sizing press having a press roll of
A feed roller and a measuring roll capable of pressing the entire width of the material are provided as a pair at at least two positions on the inlet side and the outlet side of the mold.

[0008]

Therefore, according to the present invention, a pair of upper and lower presser rolls provided substantially at the center of the mold in the longitudinal direction, and a feed roller and a measuring roll provided immediately before the entering side and immediately after the exiting side of the mold. Since the material under width reduction is gripped by,
The buckling and twisting of the material are prevented, the feed roller sends the material to the exit side of the mold, and the measuring roll measures the material.

[0009]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a plan view showing the outline of one embodiment of the sizing press of the present invention, and FIG. 2 is a view taken along the line II-II of FIG. In the figure, the same parts as those in FIG. 3 and FIG.

In the embodiment of the present invention, the pivots 10a, 10 are provided at predetermined positions on the inlet side and the outlet side of the lower portion of the housing 1.
b and pivots 11a, 11b are rotatably supported, and the rods of the hydraulic cylinders 12a, 12b and hydraulic cylinders 13a, 13b connected to the tips thereof are expanded and contracted to pivot about the pivots 10a, 10b and the pivots 11a, 11b. The arms 14a, 14b and the arms 15a, 15b to be obtained are arranged at a predetermined interval in the width direction of the housing 1, and are provided between the arms 14a, 14b and the arm 1
Feed rollers 16a and 16b are rotatably provided between 5a and 15b, and the feed rollers 16a and 16b are positioned at substantially the same height as the pass line 24 immediately before the entrance side of the molds 2a and 2b and immediately after the exit side thereof. A drive device (not shown) is connected to one shaft end of each of the feed rollers 16a and 16b.

Further, the hydraulic cylinders 19a and 19b, which are rotatably supported by the pivots 17a and 17b and the pivots 18a and 18b, which are provided at predetermined positions on the inlet side and the outlet side of the upper part of the housing 1 and which are connected to the tip end thereof, and the hydraulic pressure. Cylinder 2
By extending and retracting the rods 0a and 20b, the pivots 17a and 1
7b and the arms 21a and 21b and the arms 22a and 22b capable of swinging about the pivots 18a and 18b.
Are arranged at predetermined intervals in the width direction of the housing 1, and measuring rolls 23a and 23b are rotatably provided between the arms 21a and 21b and between the arms 22a and 22b, and the measuring rolls 23a and 23b feed the feed. The rollers 16a and 16b are arranged so as to be opposed to each other and sandwich the pass line 24 in parallel with each other and positioned immediately before the entrance side and immediately after the exit side of the molds 2a and 2b. A rotation sensor (not shown) is connected to one shaft end.

Other than the above, there is no difference from the conventional sizing press shown in FIGS. 3 and 4.

The pressing cylinders 3a and 3b allow the molds 2a,
When the materials 2 such as slabs are width-reduced by operating the 2b in opposition to each other, the material 4 is provided near the contact points between the parallel inner surfaces of the molds 2a and 2b and the entrance-side inclined portion, and the material 4 in the width direction is substantially A pair of upper and lower presser rolls 5, which press the central part from above and below.
6 prevents buckling and twisting of the central part of the width reduction part of the material 4, and feed rollers 16a, 16b and measuring rolls 23a, 23b provided immediately before the entrance side and immediately after the exit side of the molds 2a, 2b. Prevents buckling and twisting of the material 4 immediately before the entrance side and immediately after the exit side of the molds 2a and 2b, and the feed rollers 16a and 16b send the material 4 to the exit side of the molds 2a and 2b, The measuring rolls 23a and 23b measure the material 4.

According to the above, in addition to the pair of upper and lower presser rolls 5 and 6 provided at the central portions of the molds 2a and 2b, the molds 2a,
Since the feed rollers 16a, 16b and the measuring rolls 23a, 23b are provided on the inlet side and the outlet side of the 2b so as to face each other in the vertical direction, the material of the central portion of the molds 2a, 2b and the portions closest to the inlet side and the outlet side. 4 can be prevented from buckling and twisting, and the short length of material 4 can be prevented by the feed rollers 16a and 16b.
However, it becomes possible to send it, and the measuring roll 23
The material 4 can be measured by a and 23b.

The present invention is not limited to the above-described embodiments, and it goes without saying that various modifications can be made without departing from the scope of the present invention.

[0017]

According to the sizing press of the present invention, the pair of pressing rolls, the feed roller provided on the inlet side and the outlet side of the die, and the measuring ring effectively generate buckling and twisting of the material. In addition, it is possible to prevent the above-mentioned problems, measure the material and feed the short material, and since the feed roller and the measuring roll can be provided in the minimum space, various excellent effects such as reduction in equipment cost can be obtained.

[Brief description of drawings]

FIG. 1 is a plan view schematically showing an example of a sizing press of the present invention.

FIG. 2 is a view taken along the line II-II of FIG.

FIG. 3 is a plan view schematically showing an example of a conventional sizing press.

FIG. 4 is a view taken along the line IV-IV in FIG.

[Explanation of symbols]

 2a mold 2b mold 4 material (slab) 5 press roll 6 press roll 16a feed roller 16b feed roller 23a measuring roll 23b measuring ring

Claims (1)

[Claims] 1. A sizing press having a die for performing a width reduction pressing of a material, and a pair of upper and lower presser rolls which are provided at an approximately central portion in the longitudinal direction of the die and press both sides of the approximately central portion in the material width direction. 2. A sizing press, characterized in that a feed roller capable of pressing the entire width of the material and a measuring roll are provided as a pair at at least two positions on the inlet side and the outlet side of the mold.