JPH0211954Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a short side mold plate support device in continuous casting equipment.

[Conventional technology]

Conventionally, in a short-side mold plate support device in continuous casting equipment, the short-side mold plate is clamped and fixed between the long-side mold plates by a tie bolt fastening force, and the support part provided on the long-side back plate holds the short-side mold plate in place. It was connected via a pin to the support rod of the screw type adjustment device.

[The problem that the idea aims to solve]

In the conventional short-side mold plate support device, it is inevitable that a clearance will occur between the screw type adjustment device and the pin connection portion. Therefore, when the long side mold plate expands and contracts due to temperature changes in the molten metal in the mold during operation of the equipment, the short side mold plate, which is clamped and fixed between the long side mold plates by the fastening force of the tie bolts, will Due to thermal expansion and contraction of the side mold plate, it moves by the clearance between the screw type adjustment device and the pin connection.
The solidified shell of the molten metal that has been formed through the cooling through the mold plate is damaged, resulting in a breakout.

[Purpose of invention]

This invention was made to solve the above problem, and the purpose is to firmly support the short side mold plate so that it does not move even if the long side mold plate expands and contracts due to heat. .

[Means to solve the problem]

This invention is a mold support device for continuous casting equipment in which a mold part is formed by a long-side mold plate and a short-side mold plate, and a back plate is attached to the outside of each mold part, and the mold part is supported via this back plate. In this step, a short side back plate is formed to extend outward from both ends of the short side mold plate, and a recessed space is formed on the inside surface of the short side back plate opposite to the end surface of the long side mold plate. A concave groove for engaging the end of the short side back plate is provided inside the end of the long side back plate,
engaging the end of the short side back plate in the groove and pressing it against the side wall surface of the groove toward the end face side of the long side mold plate by a pressing mechanism;
The recessed space formed between the inner surface of the end of the short side back plate and the end face of the long side mold plate opposite thereto absorbs expansion of the long side mold plate. .

〔Example〕

Hereinafter, an example in which this invention is applied to a twin casting mold will be described with reference to the drawings.

In the figure, 1, 1, 1', 1' are a pair of long side back plates arranged opposite to each other, and these long side back plates 1, 1' are integrally connected in the longitudinal direction. . Each long side back plate 1, 1'
Long side mold plates 2, 2' are attached to the inner surface of the housing.

6, 7, 6', 7' (On the 6' side, only the other end of the mold is shown, and the middle part is not shown) are a pair of short side back plates arranged oppositely, A short side mold plate 8, 8' is attached to the inside of each short side back plate 6, 7, 6', 7'. Then, a short side back plate 6 is placed between the long side back plates 1' and 1' so that the short side back plates 7 and 7' are adjacent to each other in the middle part of the mold. ′、
7' are arranged, and the long side back plates 1, 1 and 1', 1' are fastened by tie bolts 20, and the short side mold plates 8, 1' are connected between the ends of the long side mold plates 2, 2'. 8' is clamped and fixed, thereby moving the short side back plates 6, 6' to the movable side,
A twin casting mold is constructed in which the short side back plates 7, 7' are fixed sides.

To specifically describe the features of this invention, firstly, each long side back plate 1, 1' has a concave groove on the inner surface of the end for engaging the short side back plate 6, 7, 6, 7'. 3 and 4 are provided.

A support block 5 is provided protruding inside the end of the long side back plate 1, 1' outward from the concave groove 4, and this support block 5 is formed with an engaging portion 21 that opens on the tip side and the top and bottom sides. has been done.

A fitting piece 16 provided on the bolt support 14 is fitted into the engagement portion 21 of the support block 5 which is open on the tip side and faces in the short side direction. It is attached by. A press bolt 15 is screwed into the bolt support 14 along the long side direction.

On the other hand, each short side back plate 6, 7, 6',
7' is formed to extend outward from both ends of the short side mold plates 8, 8'.

The surface 9 facing the inner long side mold plate 2, 2' end face of the short side back plate 6, 7, 6', 7' is a predetermined distance from the mounting surface 10 of the short side mold plate 8, 8'. This part is formed in a recessed manner, and is loosely fitted into a groove 4 formed on the inner surface of the end of the long side back plate 1, 1'. A liner 19 is removably provided in the recess 11 between the inner surface of the end portion and the side wall surface on the end surface side of the long side mold plates 2, 2' of the recessed groove 4.

The long side mold plates 2, 2' end faces and the short side back plates 6, 7, opposite thereto,
A concave space A for absorbing expansion of the long side mold plates 2, 2' is formed between the inner surfaces 9 of the end portions 6', 7'.

A bolt receiving portion 12 is provided on the back side of the center portion of the short side back plates 6, 6', and this bolt receiving portion 1
2, the tip of a press bolt 15 screwed into a bolt support 14 attached to a support block 5 provided at the tip of the long side back plates 1, 1 is inserted and locked so that it can only rotate. There is.

In addition, screw holes 13, 13' are provided on the back side of the short side back plates 7, 7' in the middle part of the twin cast mold.
13' are formed with opposite threads to each other, and a press bolt 18 is screwed into these screw holes 13, 13'.

The ends of the short side back plates 7, 7' are the inner ends (connected ends) of the long side back plates 1, 1'.
is engaged in the concave groove 3 of the press bolt 1.
By turning 8, the short side back plate 7,
7', and short side back plate 7,
The inner surface of the end of 7' is the long side mold plate 2,
The end face of the groove 2' is pressed against the side wall surface of the groove 3 through the liner 19, and is firmly fixed by pressure.

As described above, the ends of the short side back plates 6, 6' are loosely fitted into the grooves 4 at the tips of the long side back plates 1, 1'. By turning the press bolt 15 screwed into the bolt support 14 attached to the support part of the mold via the support block 5, the short side back plates 6, 6' are moved to the end face side of the long side molds 2, 2'. Press toward the short side back plates 6, 6'
The inner surface of the end portion is pressed against the side wall surface of the long side mold 2, 2' end surface side of the groove 4 through the liner 19, and is firmly pressed and fixed. In this state, a recessed space A is formed between the inner surfaces of the end portions of the short side back plates 6, 7, 6', 7' and the opposite end surfaces of the long side mold plates 2, 2', and the long side mold Even if the plates 2, 2' expand, the short side mold plates 6, 7, 6', 7' will not move.

In this embodiment, the short side back plates 7, 7' are set as fixed sides, and the twin casters are used to move and adjust the short side back plates 6, 6' back and forth by attaching and removing the liner 19 and adjusting the thickness of the liner. In this mold, bolt supports 14 and pressing bolts 15 are used as a pressing mechanism to press the short side back plates 6, 6' toward the end surfaces of the long side mold plates 2, 2', and Although an example has been described in which the pressing bolt 18 is used as a pressing mechanism for pressing the back plates 7, 7' toward the end surfaces of the long-side mold plates 2, 2', it is also applicable to a single cast mold. Also, a bolt support 14 is used as a pressing mechanism.
Of course, the present invention is not limited to the pressing bolt 15, and for example, an existing adjusting device or the like can be used.

In addition, a liner 19 was used to form a recessed space A between the inner surfaces of the end portions of the short side back plates 6, 7, 6', 7' and the opposite end surfaces of the long side mold plates 2, 2'. Alternatively, the recess space A may be formed on the inner surface of the end of the short side back plate 6, 7, 6', 7' without using a liner.

In the configuration of this embodiment, the end inner surfaces 9 of the short side back plates 6, 7, 6', 7' are set back a predetermined distance from the mounting surfaces 10 of the short side mold plates 8, 8'. A liner 19 is provided on the inner surface 9 of the end.
Since the liner 19 can be attached and detached, the casting width can be adjusted by attaching and detaching the liner 19 and adjusting the thickness of the liner, and a wide range of adjustment can be ensured.

In addition, the support blocks 5 provided at the tips of the long side back plates 1, 1' serve as reaction force receivers, and the short side back plates 6, 1' are tightened by tightening the pressing bolts 15.
The inner surface of the end of 6' is attached to the long side mold plate 2,
2', the side wall surface of the concave groove 4 is firmly pressed and fixed through the liner 19. By using the wall surface as a reaction force and turning the pressure bolt 18, the short side back plate 7,
The inner surface of the end of 7' is attached to the long side mold plate 2,
2' is firmly pressed against the side wall surface of the groove 4 through the liner 19, so even if there is a clearance in the pressing mechanism before use, there will be no damage for a long time during the pressing operation. When the side mold plates 2, 2' are thermally expanded, there is no clearance that would cause the short side mold plates 8, 8' to retreat due to the push back received through the short side mold plates 8, 8'. The set positions of the plates 8, 8' do not change regardless of the expansion and contraction of the long side mold plates 2, 2'.

[Effect of idea]

As described above, in this invention, the end of the short back plate is loosely engaged in the groove on the inner surface of the end of the long back plate, and The short side back plate is supported by pressing the mold plate toward the opposite side and firmly press-fixing it to the side wall surface of the recess, eliminating the clearance in the pressing mechanism before use, regardless of the thermal expansion and contraction of the long side mold plate. The set position of the short side back plate can be firmly held. Furthermore, since the existing adjustment device can be used as the pressing mechanism as is, this invention can be easily applied by simply modifying the long side and short side back plates, and the equipment cost can be kept low.

[Brief explanation of the drawing]

The drawing is a schematic plan view showing an embodiment of this invention. 1, 1'... Long side back plate, 2, 2'...
...Short side mold plate, 3, 4...Concave groove, 5
... Support block, 6, 6', 7, 7' ... Short side back plate, 8, 8' ... Short side mold plate, 9 ... End inner surface, 10 ... Mounting surface, 12
...Bolt receiver, 13, 13'...Screw hole, 14
...Bolt support, 15,18...Press bolt,
16... Fitting piece, 17... Bolt, 19... Liner, 20... Tie bolt, 21... Engaging portion, A
...Concave space.

Claims (1)

[Claims for Utility Model Registration] Continuous casting equipment in which a mold part is formed by a long-side mold plate and a short-side mold plate, and a back plate is attached to the outside of each mold part, and the mold part is supported through the back plate. In this mold support device, a short side back plate is formed to extend outward from both ends of the short side mold plate, and a surface opposite to the end face of the long side mold plate inside the short side back plate is formed. a recess space is formed, and a groove for engaging the end of the short side back plate is provided inside the end of the long side back plate;
engaging the end of the short side back plate in the groove and pressing it against the side wall surface of the groove toward the end face side of the long side mold plate by a pressing mechanism;
The recessed space formed between the inner surface of the end of the short side back plate and the end face of the long side mold plate opposite thereto absorbs expansion of the long side mold plate. Short side mold plate support device in continuous casting equipment.