Casting ladle stopper control device for copper rod production

Abstract

The utility model discloses a casting ladle stopper control device for copper rod production, which comprises a mounting base provided with a limit fixing block. A supporting sliding rod and a stopper rod lead screw lifting piece are arranged on the limiting fixing block in the length direction of the mounting base in a sliding mode and detachably arranged on the mounting base through a connecting piece set. One end of the movable connecting arm is hinged to the movable end of the stopper rod lead screw lifting piece through a first auxiliary support; the fixed clamp is fixedly connected with the middle part of the movable connecting arm; and a stopper rod is detachably arranged on the main clamping piece, and the head end of the stopper rod is inserted into the casting ladle, located in the ceramic pipe and used for controlling the casting amount of the molten copper. The linear corresponding relation between lifting displacement of the stopper rod and the opening degree of the ceramic tube is achieved through the mechanical transmission mechanism, the copper liquid flow adjusting precision can be effectively improved, casting blank size fluctuation caused by artificial experience difference is eliminated, and the product percent of pass is increased.

Description

Technical Field

[0001] This utility model relates to the field of copper rod production technology, and in particular to a control device for a stopper rod in copper rod production. Background Technology

[0002] In the continuous casting and rolling process of copper rods, molten copper in the ladle is injected into the crystallizing wheel through a ceramic tube at the bottom to form a billet. The core aspect lies in the precise control of the stopper rod to regulate the flow rate of the molten copper at the outlet. Traditional ladle stopper rod control is mostly done manually: the operator needs to manually adjust the height of the stopper rod based on experience, visually observe the flow rate of the molten copper and the filling status of the crystallizing wheel, and repeatedly correct the position of the stopper rod to achieve flow rate regulation.

[0003] Manual close-range operation in high-temperature environments poses safety hazards, and prolonged operation can easily lead to operator fatigue. Although some improved devices attempt to use simple lever mechanisms to assist in adjustment, they still rely on operator experience in essence and cannot achieve a linear correspondence between stopper rod displacement and copper liquid flow rate. During use, there is a lag in the response of copper liquid flow rate adjustment, and overflow or flow interruption is prone to occur, especially during start-up and shutdown. Utility Model Content

[0004] The purpose of this invention is to overcome the problem that when molten copper is injected into the crystallizing wheel through the ceramic tube at the bottom of the existing ladle, the flow rate is manually controlled, resulting in overflow or flow interruption, which leads to unqualified products. This invention provides a ladle stopper rod control device for copper rod production.

[0005] A control device for a stopper rod in copper rod production, comprising:

[0006] The mounting base is fixedly installed on the front side wall of the pouring ladle; a limiting block is provided on the mounting base; a support slide rod is slidably provided on the limiting block along the length direction of the mounting base, a fixing clip is provided at the top of the support slide rod; and a limiting stop is provided at the end of the support slide rod.

[0007] The stopper rod lifting component is detachably mounted on the mounting base via a connecting assembly;

[0008] The movable connecting arm is hinged at one end to the movable end of the stopper rod lifting component via a first auxiliary support; the fixed clamp is fixedly connected to the middle of the movable connecting arm.

[0009] The main clamp is fixedly mounted on one end of the movable connecting arm. A stopper rod is detachably mounted on the main clamp. The head end of the stopper rod is inserted into the ladle and located in the ceramic tube to control the casting volume of copper liquid.

[0010] Furthermore, the connecting assembly includes a triangular body fixed to the surface of the mounting base, and the front end of the triangular body is integrally provided with two symmetrically arranged protrusions; the bottom end of the stopper rod lifting component is located between the two protrusions and is fixed by fastening bolts.

[0011] Furthermore, the main clamp includes

[0012] The first clamping block is fixedly disposed at one end of the movable connecting arm;

[0013] A fastening block is fixedly mounted on the side wall of the movable connecting arm, and a fastening notch is provided on the fastening block;

[0014] An L-shaped connecting block is hinged to the end of the first clamping block; a second clamping block is fixedly installed on the inner side of the L-shaped connecting block; a locking screw is hinged to one side of the second clamping block through a second auxiliary component, and the other end of the locking screw is rotated to the fastening notch and fixed by a locking nut.

[0015] The beneficial effects of this utility model are:

[0016] By employing a mechanical transmission mechanism to achieve a linear correspondence between the lifting and lowering displacement of the stopper rod and the opening degree of the ceramic tube, the accuracy of copper liquid flow regulation can be effectively improved, the fluctuation of billet size caused by differences in human experience can be eliminated, and the product qualification rate can be improved. At the same time, the detachable design of the connecting components and the main clamping parts can enable the quick disassembly and replacement of this mechanism, further improving the product casting efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this control structure;

[0018] Figure 2 This is a schematic diagram of the exploded structure of this control mechanism;

[0019] Figure 3 This is a schematic diagram of the movable connecting arm.

[0020] Figure 4 This is a schematic diagram of the device in use.

[0021] In the diagram, 25-pouring ladle, 2501-ceramic tube, 5-stopper rod control mechanism, 51-mounting base, 5101-limiting fixing block, 52-connecting assembly, 5201-triangular body, 5202-protruding plate, 5203-fastening bolt, 53-stopper rod screw lifting component, 54-moving connecting arm, 5401-first auxiliary support, 55-support slide bar, 5501-fixing clamp, 5502-limiting blocking component, 56-main clamping component, 5600-first clamping block, 5601-L-shaped connecting block, 5602-second clamping block, 5603-second auxiliary component, 5605-locking screw, 5607-fastening block, 5608-locking nut, 57-stopper rod. Detailed Implementation

[0022] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0023] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0024] Example

[0025] like Figures 1-4 As shown, a control device for a stopper rod in copper rod production includes a mounting base 51, which is fixedly mounted on the front side wall of a ladle 25. Specifically, the mounting base 51 is made of high-temperature resistant stainless steel and is inclinedly fixed to the front side wall of the ladle 25 by a bolt group at an angle consistent with the angle of the ceramic tube 2501.

[0026] A limiting fixing block 5101 is provided on the mounting base 51; a support slide rod 55 is slidably provided on the limiting fixing block 5101 along the length direction of the mounting base 51, and a fixing clip 5501 is provided at the top end of the support slide rod 55; a limiting stop 5502 is provided at the end of the support slide rod 55; specifically, the limiting fixing block 5101 is welded to the surface of the mounting base 51, and a T-shaped sliding groove is opened inside it, which cooperates with the dovetail guide rail of the support slide rod 55 to allow the support slide rod 55 to slide along the length direction of the mounting base 51. The fixing clip 5501 is fixedly connected to the middle part of the movable connecting arm 54. Specifically, the fixing clip 5501 is U-shaped, and the movable connecting arm 54 is fitted into the U-shaped groove.

[0027] The stopper rod screw lifting component 53 is detachably mounted on the mounting base 51 via a connecting assembly 52. ​​Specifically, the connecting assembly 52 includes a triangular body 5201 fixed to the surface of the mounting base 51. The front end of the triangular body 5201 has two symmetrically arranged protruding plates 5202 integrally formed, with anti-slip teeth machined on the inner sides of the two plates. The bottom end of the stopper rod screw lifting component 53 is located between the two protruding plates 5202 and is fixed by fastening bolts 5203. The base of the stopper rod screw lifting component 53 is inserted between the two protruding plates and fixed by applying preload force using high-strength fastening bolts 5203.

[0028] In this solution, the stopper rod screw lifting component 53 is a prior art device that includes at least one drive motor and one screw lifting component; the drive motor is electrically connected to an external control device and is controlled by an external program to adjust the flow rate of the copper liquid.

[0029] The movable connecting arm 54 is hinged at one end to the movable end of the stopper rod lifting member 53 via the first auxiliary support 5401; specifically, when the stopper rod lifting member 53 extends, under the guide limit of the support slide rod 55, the movable connecting arm 54 moves along the vertical direction of the support slide rod 55.

[0030] The main clamp 56 is fixedly mounted on one end of the movable connecting arm 54. A stopper 57 is detachably mounted on the main clamp 56. The first end of the stopper 57 is inserted into the ladle 25 and located in the ceramic tube 2501 to control the amount of copper liquid being poured. Specifically, the main clamping member 56 includes a first clamping block 5600, which is fixedly disposed at one end of the movable connecting arm 54; a fastening block 5607, which is fixedly disposed on the side wall of the movable connecting arm 54 and has a fastening notch; an L-shaped connecting block 5601, which is hinged to the end side of the first clamping block 5600; a second clamping block 5602 is fixedly disposed on the inner side of the L-shaped connecting block 5601; a locking screw 5605 is hinged to one side of the second clamping block 5602 through a second auxiliary member 5603, and the other end of the locking screw 5605 is rotated to the fastening notch and fixed by a locking nut 5608. Specifically, it includes a first clamping block 5600 welded to the end of the movable connecting arm 54, and a fastening block 5607 with a fastening notch welded to its side wall. The L-shaped connecting block 5601 is hinged to the first clamping block 5600 via a pin, and the surface of the second clamping block 5602 welded to its inner side is covered with a high-temperature resistant ceramic gasket. After the locking screw 5605 passes through the shaft hole of the second auxiliary part 5603, the end is screwed into the locking nut 5608 to form an adjustable clamping cavity that is adapted to the stopper rod 57.

[0031] How this device works:

[0032] Step 1: Initial Installation

[0033] a. Align the mounting base 51 with the pre-set mounting hole on the front wall of the ladle 25, and tighten it with bolts to ensure that the flatness error of the base is ≤0.1mm / m.

[0034] b. Insert the support slide bar 55 into the groove of the limiting fixing block 5101, and manually push the slide bar to test the sliding resistance.

[0035] c. Insert the base of the stopper rod lifting component 53 into the protruding plate 5202 of the connector assembly 52, and tighten the fastening bolt 5203.

[0036] Step 2: Stopper rod assembly

[0037] a. Loosen the locking nut 5608 of the main clamp 56 and flip the L-shaped connecting block 5601 outward to the maximum opening angle.

[0038] b. Insert the stopper rod 57 into the opening angle of the main clamp 56 so that the front end of the stopper rod 57 is aligned with the ceramic tube 2501.

[0039] c. Close the L-shaped connecting block 5601 so that the ceramic gasket of the second clamping block 5602 fits against the surface of the stopper rod, and tighten the locking screw 5605 until the stopper rod has no axial movement.

[0040] Step 3: Casting Control

[0041] When the drive motor is started, the stopper rod lifting component 53 pushes the moving connecting arm 54 to rise, and the support slide rod 55 slides synchronously along the slide groove, so that the stopper rod 57 is lifted away from the opening of the ceramic tube 2501, and the copper liquid begins to flow into the crystallizing wheel.

[0042] The target height of the stopper rod is set by an external control device, and the electric cylinder provides real-time feedback of the position signal to dynamically adjust the opening of the stopper rod, so that the copper liquid flow rate is stabilized within the set value range.

[0043] c. When a change in the crystallizing wheel speed is detected, the control system automatically calculates the stopper rod compensation displacement to complete the opening correction and avoid overflow or flow interruption.

[0044] The embodiments described above merely illustrate specific implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A ladle stopper control device for copper rod production, characterized by: Comprising The installation base (51) is fixedly installed on the front side wall of the ladle (25); The installation base (51) is provided with a limiting fixed block (5101); The limiting fixed block (5101) is slidably provided with a supporting slide rod (55) along the length direction of the installation base (51), the top end of the supporting slide rod (55) is provided with a fixed clamp (5501), and the end of the supporting slide rod (55) is provided with a limiting stop (5502); The stopper screw rod lifting piece (53) is detachably arranged on the installation base (51) through the connecting piece group (52); The moving connecting arm (54) is hinged to the movable end of the stopper screw rod lifting piece (53) through a first auxiliary support (5401); The fixed clamp (5501) is fixedly connected to the middle part of the moving connecting arm (54); The main clamping piece (56) is fixedly arranged at one end of the moving connecting arm (54), and the stopper (57) is detachably arranged on the main clamping piece (56); The first end of the stopper (57) is inserted into the ladle (25) and located in the ceramic pipe (2501), and is used for controlling the pouring amount of copper liquid.

2. A ladle shroud control device for copper rod production according to claim 1, characterized in that: The connecting piece group (52) comprises a triangular body (5201) fixed on the surface of the installation base (51), the front end of the triangular body (5201) is integrally provided with two protruding plates (5202) arranged symmetrically; The bottom end of the stopper screw rod lifting piece (53) is located between the two protruding plates (5202) and is fixed by a fastening bolt (5203).

3. The ladle shroud control device for copper rod production according to claim 1, characterized in that: The main clamping piece (56) comprises The first clamping block (5600) is fixedly arranged at one end of the moving connecting arm (54); The fastening block (5607) is fixedly arranged on the side wall of the moving connecting arm (54), and the fastening block (5607) is provided with a fastening gap; The L-shaped connecting block (5601) is hingedly arranged at the end side of the first clamping block (5600); The inner side of the L-shaped connecting block (5601) is fixedly provided with a second clamping block (5602); One side of the second clamping block (5602) is hingedly provided with a locking screw (5605) through a second auxiliary piece (5603), the other end of the locking screw (5605) is rotated to the fastening gap and is fixed through a locking nut (5608).

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