JPS597463A - Assembly type mold for continuous casting installation - Google Patents

Abstract

PURPOSE:To apply surely tension on a casting mold with simple construction and without possibility of trouble, by mounting a tensing mechanism which applies the tension force acting always outward by means of a spring mechanism and eliminates the mechanical play of a moving mechanism to a pair of short side parts. CONSTITUTION:If a cylindrical member 12 is rotated with a handle 22 in order to move short side parts 3, 3', supporting rods 10, 10' are fed in an axial direction and move the parts 3, 3'. A tension rod 11 is also moved synchronously by the rotation of a center gear 15 which rotates cooperatively with the movement of said parts in this stage. The parts 3, 3', are thus positioned. The rod 11 in this case is energized always outward with the gear 15 by means of a spring 16 and a liner 17, and since the backup frames 4, 4' in the short side parts are pressed always outward in the places of pins 9, 9', the backlash of the screw system of the moving mechanism is offset to the state of zero.

Description

DETAILED DESCRIPTION OF THE INVENTION A mold for continuous casting equipment for slabs having a constant thickness and different width dimensions has upper and lower long sides 01.01 as shown in FIG. '
01', left and right short sides 02, 02', and when changing the width dimension, use the left and right short sides 0.
2 and 02' are moved left and right as appropriate using the moving mechanism to change the width dimension, and the configuration of the moving mechanism is generally as shown in FIGS. 2 and 6. . In those figures, 01.01' is the long side part made of upper and lower copper plates equipped with backup frame 01 (Z, 01'a,
Backup frame Q of those long sides 01.01'
1a, Q Both ends of 1'a are cross beam 08
are connected and supported by the long sides 01,
01' and short side parts 02 and 02' forming an assembly mold.
The backup frames 02a, 02'a have pins 04, 04 attached to the lots '03, 03' which are expanded and contracted by the worm mechanisms 05, 05' attached to the cross beam 08.
' is supported through. And the worm mechanism 05
By rotating the worm shaft ends 06, 06' of the worm shafts 06, 05', the short side portions 02.02' are moved in the left-right direction, thereby changing the width dimension of the assembly mold.

07 is a hydraulic cylinder attached to the cross beam 08, and the tip of its rod is connected to the backup frames 02", 02'aktctn of the short sides 02", 02'; Part 02.02'
When moving the rods 03, 03' and the worm mechanism 0
It plays the role of eliminating mechanical play of 5,05', such as backlash. In this way, the worm mechanism 05,0
Mechanical movement mechanisms such as 5' always have backlash, and if this is not eliminated, the mold will move during casting, causing defects such as cracks in the slab. In order to prevent this, conventionally, the backlash was suppressed by the tensioning action of the hydraulic cylinder 7 to prevent the mold from moving.

1 to 1, in the short side movement mechanism of the conventional assembled mold for continuous casting equipment, the movement of the short side 02° 02' is carried out by the worm mechanisms 05, 05' and the roll' 03.

06' and the backlash is eliminated by the hydraulic cylinder 7, so the structure is complicated.
Furthermore, if a failure occurs in the hydraulic system of the hydraulic cylinder 7, backlash cannot be eliminated and the mold may move.

The present invention was proposed for the purpose of providing an assembly type mold for continuous casting equipment that eliminates the drawbacks of the conventional molds described above. In a prefabricated mold for continuous casting equipment configured to change the width inside the mold by moving the pair of left and right short sides using a moving mechanism, the pair of short sides are always connected by a spring mechanism. The present invention relates to an assembly type mold for continuous casting equipment, characterized in that it is further equipped with a tensioning mechanism that applies an outward tensioning force and eliminates the mechanical play of the moving mechanism.

The present invention will be specifically explained below with reference to embodiments shown in FIGS. 4 and 6.

In Fig. 4, 1.1' is the long side of the copper plate, 2 and 2' are the backup frames, and 6' is the short side of the copper plate with the backup frames 4 and 4'. ,3
' and the long side parts 1, 1' form an assembly type mold for continuous casting equipment.

Reference numeral 5 denotes a cross beam that connects both ends of the backup frames 2, 2' of the long side 1.1' of the assembled mold and maintains a constant distance between the long sides 1.1'. 5 is the backup frame 2, 2' is the disc spring 6,
6' and bolt, oak) 7.7'. On the outside of the backup frame 4.4' on the short sides 6, 6', there is a flaket 8.8 with pins 9, 9', 9''.
', 8'' are provided as shown in FIG.

Sleeves 13 and 13' are mounted at appropriate positions on the upper and lower ends of the cross beam 5 as shown in FIG. The cylindrical members 12 and 12' are fitted with male threads on their circumferential surfaces.
A gear 19, 19' is also fixed to the outer end.

10.10' is a rod having a male thread on its outer periphery that is screwed into the male thread of the cylindrical member 12.12';
0,10' is screwed into the cylindrical member 12.12', and the engaging part 10a at its mouth end.

10'a is the pin 9 of the brackets 8 and 8' of the backup frames 4 and 4' on the short sides 6 and 6' of the assembled mold.
, 9''. 14 is a sleeve attached to the medium heat part of the cross beam 5, and 11 is a sliding part slidably inserted into the sleeve 14 on one side and on the other side. The tension rod has a threaded portion having the same pitch as the threads of the support rods)'10 and 10', and the sliding portion of the tension rod'''11 is inserted into the sleeve 14, and the engaging portion 11α of the inner end is inserted into the sleeve 14.
is the short side of the assembly mold.

6' backup frame 4, 4' bracket 8'
is engaged with pinot 9'. 15 is the tension lot ″′1
The center gear 5 is screwed into the threaded portion of the cross beam 5, and the center gear 5 is always urged outward in the axial direction (toward the left in the figure) via the liner 17 by a spring 16 disposed between the center gear 5 and the cross beam 5. . 18 is a guide member for the spring 16 and liner 17 attached to the cross beam 5 as shown in FIG.

The center gear 15 is also connected to the gears 19 and 19' through gears 20α and 20'α rotatably supported by brackets 20 and 20' attached to the cross beam 5. (See Figure 6). Then, with the tension rod 11, center gear 15, spring 16, liner guide member 18, etc., on the short side of the assembly mold,
It forms a tension mechanism that constantly applies tension force acting outward and eliminates mechanical play in the moving mechanism. 21 is rod 1
A square shaft integrally formed on the outer end of the same square shaft 2.
By rotating the handle 22 that engages with the
By rotating the gear 19, the center gear 15 and the gear 19' can be rotated in conjunction with each other.

One embodiment of the assembly type mold of the present invention is constructed as described above, and when moving the short side portions 6.6',
The square shaft 21 is rotated by the handle 22, and the cylindrical member 1 is rotated.
Rotate 2. (In this case, the cylindrical member 12' also rotates at the same time.) Then, the cylindrical members 12, . 12
The support rods 1 (IJ, 10') are sent in the axial direction by the axial feeding action on the support rods 10°10' as the rotation of Due to the rotation of the center gear 15 that rotates,
The tension rods 1-11, which have threaded portions having the same pitch as the screws of the support rods 10 and 10', also move in synchrony, and the short sides 6 and 6' including the backup frames 4 and 4' are positioned. In this case, the tension rod 1-11 is connected to the center gear 15.
The backup frame 4 on the short side is always biased outward (to the left in the figure) by the spring 16 and liner 17 through the
, 4' are always pressed outward at the pins 9, 9'', so the backlash of the screw system of the moving mechanism is eliminated and becomes zero. Therefore, during casting, the backlash causes the mold to The fact that there is no movement of
Although it is similar to the movement mechanism of the short side of the conventional assembly type mold described above, in the case of the present invention, the tension mechanism that eliminates the backlash of the short side movement mechanism and reduces it to zero operates simultaneously in conjunction with the movement mechanism. Therefore, the short side can be reliably moved and tensioned at the same time, and unlike the conventional mechanism described above, there is no fear that the tension will loosen due to a failure of the hydraulic system. Since the structure is simple and there is no risk of failure, it has practical effects.

In addition, in the above embodiment, a configuration example was shown in which the short side moving mechanism and the tensioning mechanism are linked via a gear device, but this is also possible by using another transmission mechanism, such as a transmission mechanism using a chain wheel and a checker 7. Good too.

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram of the relationship between the long side and the short side of a typical prefabricated mold, and Figs. 2 and 6 are schematic illustrations of the support and movement mechanism for the short side of a conventional prefabricated mold. In the explanatory diagram, the second
The figure is a front view of one end, FIG. 6 is a sectional view taken along the line A-A in FIG. FIG. 5 is a sectional view taken along the line B--B in FIG. 4, and FIG. 6 is a view taken along the line C--C in FIG. 5. 1.1': Long side, 2.2': Backup flap, 6': Short side, 4.4': Backup flap 15: Cross beam, 6: Belleville spring, 7: Bolt nut, 8, 8', 8" double bracket, 9, 9', 9": bottle, 10.10'
: Support rod, 11: Tension rod, 12.12'
: Cylindrical member, 16.13', 14 sleeve, 15:
Center gear, 16: Compression spring, 17: Liner, 18: Guide member, 19.19': Gear, 20.
20': Secondary gear, 21: Square shaft, 22: Handle.

Claims (1)

[Claims] By assembling a pair of upper and lower long sides and a pair of left and right short sides 9, by moving the pair of left and right short sides using a moving mechanism, a chain configured to change the width dimension in the mold is created. In an assembly type mold for casting equipment, a spring mechanism constantly applies tension force acting outward to the pair of short sides,
An assembly type mold for continuous casting equipment, characterized in that it is equipped with a tensioning mechanism for eliminating mechanical play in the moving mechanism.