JPH04220161A - Controlled regulation-device for stopper in distributing groove-path of continuously casting device - Google Patents

Abstract

PURPOSE: To provide an exactly adjustable stopper operation mechanism for facilitate the control of a pouring rate in a vessel for pouring molten metal to be opened and closed by a stopper. CONSTITUTION: The vertical movement of the supporting rod of the operation mechanism arranged on the outside of the vessel for molten metal is transmitted via a cross tie and a stopper rod to the stopper 56 to open and close a nozzle. The operation mechanism consists of the supporting rod and an outside guide housing as well as a block piston cylinder device 16 for driving the supporting rod. Between the guide housing and the square supporting rod consists of a closely clamped and fused supporting roller or ball. The exact actuation of the supporting rod by the controlled driving power of the block piston cylinder is transmitted to the stopper.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] This invention provides a stopper that is connected to a cross tie or stopper rod provided on a distribution channel or a metal container so that the cross tie or stopper rod itself can move up and down within a vertical guide device. The present invention relates to a device for the controlled adjustment of a stop in a distribution channel of a continuous casting machine for billets, ingots, slabs, etc., which is connected to a supporting rod that can be cast.

0002

[Prior art] This type of device and stopper lifting device are
There is no precision in the movement of the stopper and therefore, if a given casting quantity is to be achieved, a constant adjustment of the stopper position is required with wide tolerances and a correspondingly large mechanical play. is characterized by. Accuracy is especially a problem if the dimensions to be cast are less than 160 mm2. At such dimensions, stopper mechanism tolerances are highly disadvantageous.

The object of the invention is to provide a stop mechanism that is particularly free from tolerances, so that the above-mentioned problems no longer occur. At the same time, the costs of manufacturing and managing such a stopper mechanism are considerably reduced, at least without increasing the costs involved in this regard.

[0004] This object is achieved according to the invention by the characterizing parts of claim 1. The structure of support rollers or balls tightly fastened between the support rod and the outer guide housing achieves a kind of vertical guidance of the support rod, especially for the stopper rod without friction or gaps. This provides a stopper mechanism with a fairly high degree of precision and control, such as the precision of the molten metal being injected, in accordance with the present invention.

[0005] Preferred construction details and further improvements of the device according to the invention are set out in the dependent claims, claims 2, 5, 6, 7 etc. which particularly relate to permanently safe operation. is important.

Preferably, the guide bar consists of a member of square cross section surrounded by a corresponding square guide housing which can be opened for assembly, disassembly and management. Claims 15 to 18 are intended to ensure that the support roller is tightly fastened between the support rod and the guide housing without any gaps.

[0007] Claim 19 is also intended to achieve the object with respect to the simple mounting and dismounting of the stop drive in conjunction with the vertical guide device according to the invention. Furthermore, the drive device is constructed in such a way that the power transmission occurs without play.

The invention will be explained in more detail by way of example with reference to the accompanying drawings, in which:

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIGS. 1 and 2, a vertical guide device associated with a rectangular member 1 of a support rod which is movable in the vertical direction and supports a stopper rod 22 (not specifically shown in FIGS. 1 and 2) is two U's tightly welded at right angles to each other.
It has character-shaped members 2 and 3. The U-shaped members 7 are pivoted by a double hinge 6 to the free longitudinal edges or legs of the U-shaped members 2, 3 that are not welded together, so that these U-shaped members 7 are attached to each other. Together with the tightly welded U-shaped parts 2, 3, it can be swung into a position forming a complementary passage relative to the square part 1. L-shaped member 4 so as to weld together the two U-shaped members 2, 3 in question at the engaging longitudinal edges of the two U-shaped members 2, 3.
is used. The hinge connection mentioned in U-shaped member 7 is
It is preferably designed to open the vertical guide of the support rod without significant waste for assembly and disassembly.

Furthermore, the above-mentioned vertical guide device is characterized by a support roller 10 clamped between the square member 1 of the support bar and the guide housing formed by the above-mentioned U-shaped members 2, 3, 7. . As shown in FIGS. 2 and 3, the support rollers 10 are held by flexible support roller bands 11, respectively. Each support roller band 11 is fastened on the one hand to the support bar, i.e. the square member 1 of the support bar, and on the other hand to the associated support surface of the U-shaped member 2, 3, 7 of the guide housing, and at the same time to the support roller pocket. (see Figures 2 and 3a). The support roller band 11 has a rectangular member 1 and a U-shaped member 2, 3 of the guide housing.
, 7, similarly loosely placed support rollers 10 are held securely.

As can be seen from FIGS. 1 and 2, the rectangular member 1 of the support rod is supported by support rollers 10 from all sides with respect to the U-shaped members 2, 3, 7 of the guide housing. Two axially spaced support rollers 10 are arranged on either side at the diametrical ends of the U-shaped members 2, 3, 7 of the guide housing. When the support roller band 11 is fixed to the pivoted U-shaped member 7 of the guide housing, the guide housing can only be partially opened if the support roller band 11 is not removed in this region. Full opening of the guide housing is required to release or remove the supporting roller band 11 from the U-shaped member 7 of the guide housing on which it is pivoted. Even if a temporary order is not costly, it can be avoided by the configuration shown in FIGS. 5 and 6.

In FIGS. 3a and 3b, the support roller band 11 is connected to the associated support roller 10 and support roller band 1.
1 shows a type of perforation that cooperates favorably with the peripheral surface of the support roller 10, which has a complementary shape so as to prevent relative movement between the two.

As in the variant shown in FIG. 3c, teeth are provided on the peripheral surface of the support roller 10 in the direction of the longitudinal axis of the support roller, and on the other hand, corresponding teeth formed on the square member 1 of the support rod are provided. and, on the other hand, respectively, with the inside of the U-shaped parts 2, 3, 7 of the guide housing.

According to FIG. 2, the rectangular member 1 of the support rod 5 is provided with slots, which in the figure are shown intersecting and axially spaced apart, in other words intersecting each other at right angles and passing through. Four elongated holes 12 and 13 are shown. A total of four connecting rods 8, each provided with a collar 14 at the end, pass through the elongated holes 12, 13 and furthermore on the opposite sides of the U-shaped members 2, 7 and 3, 7 forming a guide housing. That is, it extends through the web. The end of the connecting rod 8 opposite the collar 14 is threaded so that a nut 42 can be screwed onto it. The U-shaped parts 2, 3, 7 of the guide housing are held together by connecting rods 8 together with corresponding fastenings of the support rollers 10.

A spring element, in particular DE-B-24 06 006, provided between the collar 14 of each connecting rod 8 and the corresponding side of the U-shaped member 2, 3, 7 of the guide housing.
An appropriate displacement is obtained for the effect of a thermodynamic spring according to . The spring element 9 described above is effective in the pivoted U-shaped element 7, but this is only for assembly reasons. The necessary tightness of the support roller 10 can be adjusted by means of the connecting rod 8 and the above-mentioned spring element. At the same time, it provides a vertical guide with no gaps between the support rod and the stopper provided on the stopper rod 22.

The support roller 10 provides multi-purpose support for the rectangular member 1. During a vertical movement of the support bar, ie the square member 1, the support roller 10 only performs a rotational movement. Therefore,
The vertical guide described above is frictionless and practical. Therefore, there is almost no wear and tear and maintenance costs are low.

The above-mentioned support roller band 11 has a diameter of 0.3 to
It is preferably made from a thin metal plate with a thickness of 0.5 mm. The preferred material for the support roller band 11 in question is a steel alloy, X6CrNiTi1810=1.4541 or X6
CrNiMoTi17122=1.4571. As mentioned above, the support roller band 11 supports the support roller 10.
the square member 1 and the U-shaped members 2, 3, 7 of the guide housing.
It acts to position between. This is particularly true regarding assembly.

The above-mentioned perforations in the support roller band 11 are characterized by holes with a diameter of approximately 10 mm. This configuration is preferred with regard to dust that may occur. Although it is not necessary to provide complementary shapes on the circumferential surface of the support roller 10, it is still preferred as described above to prevent slippage.

The fifth slot 15 of the rectangular member 1 is intended for the lateral insertion of a block piston-cylinder arrangement that allows the support rod to be moved back and forth and up and down. The block piston-cylinder arrangement 16 described can be supported on the one hand on the U-shaped parts 2, 3, 7 of the guide housing and on the other hand on the support rods, i.e. square parts 1. The block piston cylinder arrangement 16 has two piston rods 19, 20 which can extend coaxially and diametrically outside the cylinder casing, and a third piston rod 21 which can extend outside the cylinder casing. two piston rods 19, 20
engages the square member 1, i.e. the support rod, in a transverse slot 15 for movement together, while the transverse piston rod 21 engages the U-shaped member 2, 3, 7 of the fixed guide housing.
, or to achieve fixation of the block piston-cylinder arrangement 16 in a guide housing fixed in the distribution channel.

This transverse piston rod 21 is effectively spaced laterally from the two piston rods 19, 20 mentioned first. Moreover, this piston rod 21 extends parallel to the other piston rods 19, 20 (the central axes 17, 18 of the cylinder or piston rod in FIG. 2). Transverse slot 15 formed in the square member 1 of the support rod
A corresponding passageway 43 is associated with the slot. The above-mentioned block piston-cylinder arrangement 16 passes through this passage 43 into the transverse slot 15 of the square member 1 of the support rod, i.e. the slot 1 in which the two piston rods 19, 20 extend.
5. Can extend inward.

[0021] Upon insertion of the block piston-cylinder arrangement 16 in the manner described above, all three pistons and thus the piston rods 19, 20, 21 are extended. The diametrically effective piston rods 19, 20 engage in the upper and lower sides of the transverse slots 15 of the square part 1, while the piston rods 21 engage in the blocks in the U-shaped parts 2, 3, 7 of the guide housing. Piston cylinder device 16
together with a corresponding fastening of the guide housing engages on the outside of the guide housing, ie on a support block 44 connected to the guide housing.

In the event of a stroke command, the fluid associated with the piston rods 19, 20 engaging the square member 1 is directed in the "extension" direction, ie upwards in FIG. Move the piston rod in both directions under permanent "excess force". The fluid circuit according to FIG. 4 shows the operating state of the fluid acting on the rectangular member 1. The fluid circuit according to FIG. In this case, the force support of the block piston-cylinder arrangement 16 on the outer guide housing 7 is not shown for reasons of clarity.

In principle, the diametrically effective piston rods 19, 20, ie the associated pistons, are pressurized during operation so that either the upper or lower pistons can control the movement of the support rod and thus of the stop in the desired direction. is under overpressure compared to the diametrically effective piston. According to FIG. 4, the cylinder chambers 24, 25, which are diametrically associated with the active piston and are each free of piston rods, have connecting passages 26
are fluidly connected to each other by. This connecting passage 26
acts to build up pressure and move the two pistons apart. In practice, this pressure is approximately 180-250 bar. Due to this high pressure, the two diametrically acting pistons are tightly coupled.

The described connecting passage 26 includes a check valve 27 that can only open toward the connecting passage 26, and a 3/4-way valve 28 to either the fluid pump P or the fluid tank T.
and via a conduit 40 that achieves the connection. The conduit 29 is branched between the check valve 27 and the above-mentioned connecting passage 26, and is connected to the fluid tank T. Another pressure relief valve 30 is provided in conduit 29. The cylinder chambers 31, 32 through which the diametrically effective piston rods 19, 20 pass are 3/
It can be connected to a fluid pump P or a fluid tank T via a four-way valve 33, and each conduit 36, 37 is connected to a corresponding connection conduit 34,
35 toward the pilot valve 38, and the conduit 3
Connecting conduits 34, 35 can be connected to the 3/4-way valve 28 via 9, and the two cylinder chambers 24, 2 without piston rods
The connection passages 26 between the five can be connected in the same way.

A check valve 27 in the conduit 40 allows the pilot valve 38 to be discharged via a pressure line 41 branching off from the conduit 39 connecting the three-quarter-way valve 28 . This consists of two cylinder chambers 24, 2 without piston rods.
5 and a corresponding reduction in the piston diffusion pressure in the connecting passage 26 between
This is done by locating the .

In this position, conduit 40 is connected to fluid tank T. The conduit 39 and the pressure line 41 are in communication with the fluid pump P at the 3/4-way valve 28 in this position, so that the check valve 27 is released, thereby allowing the check valve 27 to connect the conduit 40 to the fluid tank T. The pressure within the connecting passage 26 is distributed through the connecting passage 26. The pressure build-up in the connecting passage 26 is realized in the reverse order, ie by means of the 3/4-way valve 28 in the left-hand position in FIG.

In this position, the pump P is connected to the connecting passage 26 via the check valve 27 and the conduit 40. Tank T is
When the pressure decreases and builds up in the connecting channel 26, the so-called "
h" position, ie the right-hand position in FIG. 4, via a conduit 39 with a pilot valve 38 located in the right-hand position in FIG. 4. In this position, the conduit 39 is in communication with the connecting conduits 34, 35, 36, 37, respectively. With the establishment of the required high pressure in the connecting passage 26, the pilot valve 38 and the three-quarter-way valve 28 are moved to the positions shown in Figure 4. The conduit 39 is not pressurized in these positions. acts to maintain a pressure buildup in the connecting channel 26, which pressure is regulated by a pressure relief valve 30.The connecting conduits 36, 35 are connected to the 3/4-way valve 2.
8, only the 3/4-way valve 33 directly associated with the connecting conduits 34, 35 is effective. The vertical movement of the piston rods 19 and 20 is effected by this 3/4 way valve 33. All valves are solenoid controlled.

Due to the pressure achieved in the connecting passage 26, the two radial pistons act as a single piston with two radially extending piston rods.

During assembly and disassembly of the block piston cylinder arrangement 16, the pressure in the connecting passage 26 is reduced in the manner described above. In operation, this pressure build-up within the connecting passage 26 is effective as described. That is, the block piston cylinder device 16 is operated in the manner described.
After "pulling", the 3/4-way valve 28 and the pilot valve 38 are moved to the operating position in the manner already described, that is, as shown in FIG. 4, so that the 3/4-way valve 3
3 acts to cause the piston rods 19, 20 to move up and down in synchronization.

In summary, it can be said that the device described operates practically without slippage, resulting in low wear and therefore low maintenance costs. Furthermore, the elimination of gaps is guaranteed. Management is particularly easy due to the double hinge 6. It is easy to manage the installation and removal of all vertical guide devices. Standard steel can be used for all parts. Since there are no gaps or tolerances in the vertical guide device, it can be used with multiple axes. Separate lubrication of the vertical guide can be carried out.

It should be noted that in FIG. 1, reference numeral 5 indicates a portion of the distribution channel. Furthermore, in FIG. 1 the direction of the opening of the U-shaped member 7 is indicated by an arrow 45.

5 and 6 schematically show another means of fixing the support roller band 11, in which the support roller band 11 is attached to a rectangular frame 46 at the end of the guide housing.
is fixed to. This rectangular frame 46 is firmly fixed in suitable horizontal grooves 48 of the fixed parts of the guide housing, namely the U-shaped parts 2, 3, so that the support roller band 11 fixed to the rectangular frame 46 is fixed in the part facing the guide housing. and against the inner wall surface of the guide housing or the U-shaped members 2, 3.

Correspondingly, the pivoted part of the support rod guide housing, ie the pivoted U-shaped member 7,
An inner horizontal groove 4 is provided to receive the above-mentioned rectangular frame 46 in the closed state of the support rod guide housing (see especially FIG. 6).
7. The rectangular frame 46 is adapted to a support rod guide housing of free cross-section, ie of rectangular cross-section in the illustrated case.

In the embodiment according to FIGS. 5 and 6, the U-shaped parts 2, 3, 7 of the support rod guide housing are connected to the supporting roller band 11 associated with the pivoted U-shaped part 7 of the guide housing. It can be opened without removing it.

In this embodiment, the support roller band 11
is attached to the square member 1 of the support rod in a manner similar to that described above.

It is also noted that in practice triangular or hexagonal cross-sections can be considered instead of the rectangular member 1. In such cases, the guide housing should be shaped accordingly. In this connection, the invention is not limited to square members of the support bar.

FIGS. 7 and 8 schematically show a further embodiment of a support roller-type vertical guide device for the square member 1 of the support rod. In this embodiment, the U-shaped member 2 of the guide housing
, 3 and 7 and protrudes inwardly.
It is characteristic that a stop in the form of ' is associated with each support roller 10. The support roller 10 has a protrusion 11' at the opposite end 5 when the rectangular member 1 of the support rod is in a lower position aligned with the rectangular member 1 of the support rod or with its direction of operation, respectively.
0 allows it to be placed on the protrusion 11'.

When the rectangular member 1 of the support rod moves upward in the direction of the arrow shown in FIG. The sliding effect is based on the elastic fastening between the guide housing and the support rod. When the square member 1 of the support rod is moved to the lowermost position, the end 50 becomes engaged with the projection 11'. Thereby, the support roller 10 is always aligned transversely with the direction of movement of the square member 1 of the support rod.

The surface of each support roller 10 has a depth of about 2 to 1
0mm, especially 4-8mm with a width of at least 1.5-2m
It preferably has at least one, in particular axially spaced, circumferential groove of m. Dust that accumulates in the gap between the support rod and the guide housing falls through these circumferential grooves and can be easily removed. The circumferential groove therefore forms a passage for removing dust. Figure 7
In FIG. 8, the circumferential groove described is designated by the reference numeral 58.

With regard to reliable operation and structural accuracy, the embodiments according to FIGS. 9 and 10 are of particular importance. In this case,
The rolling body guidance is carried out by a commercially available linear ball device 10' extending laterally of the square member 1 of the support bar, ie in its working direction. These two linear ball devices 10' are fastened at mutually supporting parts on each side (four sides) between the square member 1 of the support rod and the U-shaped members 2, 3, 7 of the guide housing. These linear ball devices 10' are connected to each other (
direction of the support rod or its movement) and are axially separated under the elastic force exerted by the spring member 9 mentioned above.

A stop in the form of an L-shaped projection 11' provided on the inside of the U-shaped part 2, 3, 7 of the guide housing surrounding the square part 1 of the support rod is attached to each linear ball device 10.
' is linked to. Each linear ball device 10', in particular the web-like cage 52, rests on the square member 1 of the support rod when the latter is in the lower position, and the linear ball device 10'
are aligned in the lateral direction of the support rod or in the direction of movement of the support rod. The action of the projection 11' corresponds to the stop or support roller band 11 of FIG.

As seen particularly in FIG. 10, the clamping and pressing of a solid linear ball device 10' on one of the four sides of the support rod is supported for pivoting about a vertical axis 54. This is done via a bearing surface 53 delimited by a plate removably mounted on the corresponding side of the guide housing. The vertically mounted linear ball device 10" forms a pivot support for the bearing surface 53 or bearing support surface. This component is a commercially available product. In particular, the vertically mounted linear ball device 10" are provided between the bearing surface 53 and the associated U-shaped member 3 of the guide housing, the connection between the side of the guide housing and the bearing surface 53 being effected by a resilient member such as a bevel spring 55.

All other bearing surfaces are firmly attached to the square member 1 of the support rod on the one hand and to the inside of the guide housing on the other hand.

One bearing surface or support surface 53 of the above-mentioned pendulum-supported configuration on the side of the guide housing is in particular complemented by the square members 2, 3, 7 of the guide housing in a rectangular alignment on the adjacent side of the housing. Allows for tolerances based on manufacturing.

As another example of this arrangement, in each associated V-shaped groove formed on the outside of the square member 1 of the support bar on the one hand and on the inside of the U-shaped member 2, 3, 7 of the guide housing on the other hand, respectively. with the support and vertical guidance of the rectangular member 1 of the support rod inside the U-shaped member 2, 3, 7 of the guide housing, taken over by a radially fastened linear ball device 10' on which the balls can roll. That's what I think. This configuration is therefore characterized by the presence of only two rolling body guide devices arranged radially opposite each other between the square member 1 of the support rod and the guide housing. The support rod is laterally supported within the guide housing by the aforementioned V-shaped groove in which the support ball is retained. Despite large manufacturing tolerances, this embodiment does not require any pendulum bearing surfaces or rolling plates.

The linear ball devices 10', 10'' described above are available on the market. The rolling body devices, ie the balls,
Designed for special installations and as required according to load. These balls are mounted in a cage or holder made of plastic, aluminum or brass. In this case, aluminum or brass cages are suitable. The web-like cages 52 are designed so that gaps remain free between these cages 52 on the one hand, and on the other hand between the balls and bearing surfaces where dirt, dust and the like can fall into the gaps between the support rod and the guide housing. very suitable for

Furthermore, a stopper, that is, a protrusion 11'
has a vertical protrusion 59 to prevent lateral movement of the linear ball device. Each linear ball device is thus retained between a projection 59 extending vertically above the projection 11' and between opposing bearing surfaces of the support rod and the guide housing.

FIG. 9 shows the injection container 57 (distribution channel) and the stopper 56. FIG. 9 thus provides a good overview of a preferred embodiment of the device according to the invention.

FIG. 11 shows guide housings 102, 107.
FIG. 3 is a schematic cross-sectional view of another embodiment of the support and vertical guidance of the square member 1 of the support rod in the interior; This embodiment is characterized by two radially fastened linear ball devices 110 moving parallel to the square member 1 of the support bar, the balls being attached to the square member 1 of the support bar on the one hand and on the other hand. can roll in associated V-shaped guides or guide slates 111, 112 provided inside the guide housings 102, 107, respectively. In the illustrated embodiment, the guide housing is characterized by two U-shaped parts, one U-shaped part 102 is fixed or welded (welded seam 114) to the metal container, and the other guide housing 107 is attached to the support rod. Since it is connected to the preceding guide housing 102 by a hinge joint 113 extending parallel to the square member 1, the guide housing 107 can be opened.

The fastening of the linear ball device 110 is carried out by means of a screwdriver 115 which is biased by a bevel spring 116 and is arranged radially opposite the hinge joint 113 against the square part 1 of the support rod. Preferably, screwdriver 1
15 is a pivot axis 1 extending parallel to the square member 1 of the support rod.
It is supported on a fixed guide housing 102 for pivoting about 17. All the parts needed to close the guide housings 102, 107 are removed by pivoting the screwdriver 115 about the pivot axis 117 (see arrow 118) to the position shown in FIG. The screwdriver 115 is fixed in this position by a nut 119 against the pressing force.

The above-mentioned V-shaped guide slates 11, 1
12 is connected to the guide housing 10 by bolts 120 on the one hand;
2 and 107, and on the other hand, they are each fixed to the square member 1 of the support rod by bolts 121, which are not shown in detail. A recess 122 is provided in the square member 1 of the support bar to accommodate the guide slate 112, so that the guide slate 112 will fit into the square member 1 of the support bar when installed.
It does not protrude beyond the outer periphery of or does not protrude at all.

The embodiment shown in FIG. 11 is characterized by the simplest and most effective design. In fact, compared to the embodiments of FIGS. 9 and 10, the balls 123 of the linear ball device 110 must be made somewhat stronger and larger for a minimum number of linear ball devices. Such drawbacks are further compensated for by a similar, simpler construction.

FIG. 12 shows a modification of the support rod of the block piston cylinder device 16 within the effective range. Therefore, the support rod square member 1 has a box 103 that is open on one side and the inside, and the support rod square member 1 in the vertical direction.
A block piston cylinder arrangement 16 can be arranged for the movement of. Box 103 is of welded construction as clearly shown in FIG. On the one hand, the lower end 106 of the upper support rod member 104 and the upper end 108 of the lower support rod member 105 on the other hand are connected to the box 103.
The lower end 106 and the upper end 10 are connected to opposite ends of the
8 is installed.

Stop bolt 109 provides another lock. These bolts 109 extend through the lower end 106, the upper end 108, and the end plates 125, 126 at opposite ends of the box 103 and are locked in place in a well-known manner. The lower end portion 106 and the upper end portion 108, which are fixed by attaching the upper and lower support rod members 104 and 105, are attached to the upper and lower support rod members 10.
4, 105 ensures accurate axial positioning of the upper and lower support rod members 104, 105 relative to the box 103.

[Brief explanation of the drawing]

1 is a cross-sectional view of a vertical guide device according to the invention for a support rod of a stopper rod; FIG.

2 is a longitudinal sectional view of the vertical guide device shown in FIG. 1; FIG.

FIG. 3 is an enlarged perspective view of a portion of a vertical guide device according to the invention;

4 is a fluid circuit diagram of a recommended stopper drive in conjunction with a vertical guide device according to the invention according to FIG. 2; FIG.

FIG. 5 is a perspective view of another means of securing the support roller band in the vertical guide of the support rod;

6 is a longitudinal partial cross-sectional view showing details of fixing of the support roller band shown in FIG. 5; FIG.

FIG. 7 is a perspective view of another embodiment of a support roller type vertical guide device.

FIG. 8 is a side view of another embodiment of a support roller type vertical guide device.

9 is a perspective view of another embodiment of a further modified device according to the invention of a vertical guide device; FIG.

FIG. 10 is a cross-sectional view of the device shown in FIG. 9 along line X--X;

FIG. 11 is a schematic cross-sectional view of a further modified embodiment of the support roller type guide device;

FIG. 12 shows a schematic longitudinal section through a variant embodiment of the support rod within the working range of the vertical drive;

[Explanation of symbols]

1 Square members 2, 3, 7 U-shaped member 4 L-shaped member 5 Support rod 6 Double hinge 7 Outer guide housing 8 Connecting rod 10 Support roller 11 Support roller bands 12, 13 Long hole 15 Slot hole 16 Block piston cylinder device 19 ,20,2
1 Piston rods 24, 25, 31, 32
Cylinder chamber 26 Connecting passage 27 Check valve 28, 33 3/4 way valve 29, 39, 40 Conduit 30 Pressure safety valve 34, 35, 36, 37 Connection conduit 38 Pilot valve 41 Pressure conduit 44 Support block 46 Rectangular frame 47 Groove 52 Cage 55 Bevel spring 56 Stopper 58 Circumferential groove 59 Projections 102, 107 Guide housing 103 Box 110 Linear ball device 111, 112 Guide slate

Claims (29)

[Claims] 1. A billet, in which the stopper is connected to a cross tie or stopper rod arranged on the distribution channel or the metal container, and the cross tie or stopper rod itself is connected to a support rod that can move up and down in a vertical guide device. In devices for the controlled adjustment of the distribution channels of continuous casting machines for ingots and slabs or stops of metal containers, the vertical guide of the support rod is clamped without any gaps between the support rod and the outer guide housing. A device characterized in that it consists of a rolling body, such as a mounted support roller or support ball. 2. The support rollers are retained by elastic support roller bands, each support roller band being fixed directly or indirectly to the support rod and to the guide housing, particularly by a fastening frame, each support roller band having an upper opening support. 2. A device according to claim 1, characterized in that the roller pockets are formed at the same time. 3. Device according to claim 1, characterized in that the peripheral surfaces of the support rollers are each formed with a shape corresponding to the replenishment shape of the support roller band. 4. The peripheral surface of the support roller is toothed in the direction of the longitudinal axis of the support roller, and teeth corresponding to the supplementary teeth are provided on the support rod and on the associated inside of the guide housing. 2. A device according to claim 1, characterized in that: 5. A stop, in particular a protrusion, provided on the inside of the guide housing surrounding the support rod, in particular with an end aligned in the lateral direction or direction of movement of the support rod when the support rod is in the lower position. Apparatus according to claim 1, characterized in that it is associated with each support roller adapted to rest on the housing. 6. The surface of each support roller is approximately 2 to 10 mm.
, in particular at least one of a plurality of circumferential grooves formed axially spaced from each other and having a depth of 4 to 8 mm and a width of at least 1.5 to 2 mm. 5. The device according to 5. 7. The rolling body type guide device is formed by a linear ball device extending in the lateral direction or direction of movement of the support rod, at least two axially spaced linear ball devices extending between the support rod and the guide housing. 2. The device of claim 1, wherein the device is fastened on each side of a common support between the devices. 8. A stop, in particular a protrusion, provided on the inside of the guide housing surrounding the support rod, in particular a web-shaped cage aligned in the lateral direction or direction of movement of the support rod when the support rod is in the lower position. 8. A device according to claim 7, characterized in that it is associated with each linear ball device adapted to be mounted on the guide housing by means of a plurality of linear ball devices. 9. Support and vertical guidance of the support rod in the guide housing is provided by a radially fastened linear ball arrangement, the balls being arranged in respective associated V-shaped grooves on the outside of the support rod and on the inside of the guide housing. 9. Device according to claim 7 or 8, characterized in that it is adapted to roll within. 10. In the support of the support bar on at least three, especially four sides, the clamping and pressing of the support rollers or support balls without gaps is achieved by at least one support surface supported for pivoting about a vertical axis. 9. Device according to any one of claims 1 to 8, characterized in that it is carried out on one side. 11. The pivotable support of at least one set of support rollers or of the support surface of the linear ball device is provided by a vertically mounted linear ball device, a vertically extending support roller or the like. 10. The device according to 10. 12. A vertically mounted linear ball device or support roller is provided between one side of the guide housing and the associated outer support surface or the guide housing and the opposite support surface and is disposed between the side of the guide housing in question and the opposite support surface. 12. Device according to claim 11, characterized in that the connection between the associated support surfaces is effected by a resilient member, such as a Hebel spring. 13. Apparatus according to claim 1, wherein the support rod comprises a square cross-section member surrounded by a corresponding square guide housing which can be opened. 14. Device according to claim 13, characterized in that the rectangular guide housing consists of two hingedly linked corner pieces. 15. A connecting rod or pull rod extending laterally of the longitudinal axis of the support rod passes through the support rod and a guide housing surrounding the support rod, the connecting rods being spaced laterally and axially from each other. 15. Any one of claims 1 to 14, characterized in that the respective opposite side walls of the guide housing are reinforced by a corresponding fastening of a support roller or a support ball between the support rod and the guide housing. The device described. 16. Device according to claim 15, characterized in that the reinforcement of opposite side walls of the guide housing takes place opposite the action of corresponding elastic members. 17. In the area of the support rod, the connecting rod passes through an elongated hole extending in the longitudinal direction of the support rod, the axial dimension of the elongate hole determining the maximum movement of the support rod and thus of the stop. 17. A device according to claim 15 or 16. 18. Device according to claim 1, characterized in that the gap between the support rod and the guide housing is sealed at least at the upper edge part, in particular by an elastic stripper. 19. Device according to claim 1, characterized in that the support rod can be moved back and forth or up and down by means of a block piston cylinder arrangement capable of acting fluidly, fluidically and pneumatically or pneumatically. 20. Device according to claim 19, characterized in that the block piston cylinder device is adapted to be supported by a guide housing and a support rod. 21. A block piston cylinder arrangement having two piston rods capable of extending radially from the cylinder casing and a third piston rod capable of extending from the casing, the first two piston rods being capable of extending radially from the cylinder casing. 21. Device according to claim 20, characterized in that, in engagement with the third piston rod, the third piston rod achieves fixation of the block piston-cylinder device in a fixed guide housing or a guide housing fixed to the distribution channel. 22. A radially acting piston rod is engaged within a lateral opening in the support rod, the third piston rod extending spaced apart and generally parallel to the first two piston rods. 22. The device of claim 21, characterized in that: 23. The radially acting piston rod and the piston are each pressurized during operation such that either the upper or lower piston is the radially acting piston based on the desired direction of movement of the support rod and thus the stop. 23. Device according to any one of claims 19 to 22, characterized in that it is under comparatively overpressure. 24. The respective piston rods and free cylinder chambers associated with the radially acting pistons are in fluid communication with each other in a connecting passage, the connecting passage building up a pressure separating the two pistons. and the connecting passage has a check valve that opens only in the direction toward the connecting passage and 3/4
a conduit for communicating with either the pump or the tank via a check valve, a conduit to the tank branching between the check valve and the connecting passage, and an adjustable pressure relief valve provided in the connecting passage; 24. The device of claim 23, characterized in that: 25. The cylinder chambers through which the radially acting piston rods pass can be connected alternately to the pump or tank via 3/4-way valves, each conduit being connected from the corresponding two connecting conduits to the pilot valve. The connecting conduit can connect both to the 3/4-way valve via another conduit, or can not be connected at all, and the two free from the piston rod.
The fluid connection between the two cylinder chambers is connected in the same way that a check valve provided in the conduit can be released via a pressure line branching from the conduit linking the pilot valve to the 3/4-way valve. 25. A device according to claim 23 or 24, characterized in that: 26. The apparatus of claim 25, wherein all pilot valves are solenoid controlled. 27. Support and vertical guidance of the support rod within the guide housing is provided by two radially clamped linear ball devices extending parallel to the support rod, the balls being located inside the support rod and the guide housing. 27. Device according to any one of claims 1 or 11 to 26, characterized in that the respective associated V-groove guide devices are adapted to roll. 28. Any one of claims 1 to 27, characterized in that the support rod has a box that is open on one side and in which a piston-cylinder arrangement or a block piston-cylinder arrangement for vertical movement of the support rod can be arranged. The device described. 29. The lower end of the upper support rod part and the upper end of the lower support rod part are connected by mounting and, if necessary, transverse bolts at the opposite ends of the box forming a welded structure for the block piston cylinder arrangement. 29. A device according to claim 28, characterized in that it is locked by.