Directional crystallizer for continuous solidification of copper material

Abstract

The utility model relates to the technical field of copper material preparation, in particular to a directional crystallizer for continuous copper material solidification, which comprises a cylindrical outer sleeve and a mandrel arranged in the outer sleeve, and the mandrel comprises a fixed end and a forming end; the fixed end is connected with the jacket through a connecting mechanism; the connecting mechanism comprises a sliding block in elastic sliding connection with the outer sleeve, the sliding direction of the sliding block is the radial direction of the outer sleeve, a groove is formed in the circumferential outer wall of the fixed end, and a guide face is arranged at one end of the sliding block. And the connection mode of the fixed end and the outer sleeve is optimized, so that the dismounting and remounting processes are simpler, more convenient and quicker.

Description

Technical Field

[0001] The utility model relates to the technical field of copper material preparation, in particular to a directional crystallizer for continuous solidification of copper materials. Background Art

[0002] Graphite crystallizer is an important component of continuous solidification of copper materials. Its working principle is based on the cooling and solidification process of molten metal. In the continuous casting process, graphite crystallizer plays a core role in the formation of "primary billet shell". Its main function is to quickly cool the high-temperature molten metal to form a solid shell with a certain thickness and shape, and then continuously extract it from the top to finally obtain a continuous casting billet.

[0003] The graphite crystallizer in the prior art includes a cylindrical outer shell and a core shaft arranged in the outer shell, the core shaft includes a fixed end and a forming end, wherein the fixed end is connected to the outer shell by a pin. If the core shaft needs to be repaired or replaced, the pin connection makes the disassembly and reinstallation process more complicated. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a directional crystallizer for continuous solidification of copper materials, optimizes the connection method between the fixed end and the outer sleeve, and makes the disassembly and reinstallation process simpler and faster.

[0005] The utility model discloses a directional crystallizer for continuous solidification of copper materials, comprising a cylindrical outer shell and a mandrel arranged in the outer shell, wherein the mandrel comprises a fixed end and a forming end; the fixed end is connected to the outer shell through a connecting mechanism;

[0006] The connection mechanism comprises a slider elastically slidably connected to the outer sleeve, and the sliding direction of the slider is the radial direction of the outer sleeve, a groove is provided on the circumferential outer wall of the fixed end, and a guide surface is provided at one end of the slider;

[0007] When the outer sleeve and the fixed end are kept in fixed position, one end of the sliding block extends into the groove.

[0008] As a preferred solution of the utility model, the other end of the slider is outside the outer sleeve, the outer wall of the outer sleeve is provided with one end of a tension spring, the other end of the tension spring is provided on the other end of the slider, and the slider is provided with a limiting portion, and under the tension of the tension spring, the limiting portion contacts the outer wall of the outer sleeve.

[0009] As a preferred solution of the utility model, a sliding portion is provided on the inner wall of the outer sleeve, and the fixed end is slidably connected to the sliding portion.

[0010] As a preferred solution of the utility model, a blocking portion is provided inside the outer sleeve, and when the fixed end contacts the blocking portion, one end of the slider extends into the groove under the tension of the tension spring.

[0011] As a preferred solution of the utility model, both upper and lower sides of one end of the slider are planes, and when one end of the slider extends into the groove, both upper and lower sides of the slider overlap with the groove.

[0012] As a preferred solution of the utility model, the top of the fixed end has an arc surface, and when one end of the sliding block extends into the groove, the arc surface overlaps with the guide surface.

[0013] As a preferred solution of the utility model, a unlocking portion is provided at the other end of the sliding block.

[0014] As a preferred solution of the utility model, the outer sleeve is provided with a plurality of liquid inlet holes, and the axis of each of the liquid inlet holes is inclined toward the forming end.

[0015] Compared with the prior art, the utility model has the following beneficial effects: during use, when installing the outer sleeve and the core shaft, the formed end of the core shaft is extended from the bottom end of the outer sleeve into the outer sleeve, and when the fixed end overlaps with the slider, since the cross-section of the guide surface is an arc surface or an inclined surface, the slider can be subjected to a component of force moving outward, so that under the extrusion of the fixed end, the slider moves outward, and when the fixed end reaches the specified position, under the action of the elastic force, the slider slides radially along the outer sleeve and is inserted into the groove of the fixed end, so that the core shaft and the outer sleeve remain fixed, and the provided connection mechanism can make the core shaft and the outer sleeve quickly connected, which is more convenient for disassembly and assembly than the pin connection method. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 yes Figure 1 Bottom view of

[0018] Figure 3 It is a schematic diagram of the structure of the mandrel;

[0019] Figure 4 It is a cross-sectional view of the utility model;

[0020] Markings in the accompanying drawings: 1. outer sleeve; 2. fixed end; 3. forming end; 4. slider; 5. groove; 6. guide surface; 7. tension spring; 8. limiting part; 9. sliding part; 10. blocking part; 11. unlocking part; 12. liquid inlet hole. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0024] Example

[0025] Reference Figure 1-Figure 4 This embodiment provides a directional crystallizer for continuous solidification of copper materials, comprising a cylindrical outer sleeve 1 and a mandrel arranged in the outer sleeve 1, the mandrel comprising a fixed end 2 and a forming end 3; the fixed end 2 is connected to the outer sleeve 1 through a connecting mechanism, and in order to improve the connection stability, two groups of connecting mechanisms are provided, and the two groups of connecting mechanisms are arranged in a circumferential array;

[0026] The connecting mechanism comprises a slider 4 elastically slidably connected to the outer sleeve 1, and the sliding direction of the slider 4 is the radial direction of the outer sleeve 1, the outer wall of the fixed end 2 is provided with a groove 5, and one end of the slider 4 is provided with a guide surface 6. Figure 4 As shown, the cross section of the guide surface 6 is a curved surface or an inclined surface;

[0027] When the outer sleeve 1 and the fixed end 2 are kept in fixed position, one end of the slider 4 extends into the groove 5;

[0028] During use, when installing the outer sleeve 1 and the core shaft, the core shaft forming end 3 is extended from the bottom end of the outer sleeve 1 into the outer sleeve 1. When the fixed end 2 overlaps with the slider 4, since the cross-section of the guide surface 6 is an arc or an inclined surface, the slider 4 can be subjected to a component of force moving outward, so that under the extrusion of the fixed end 2, the slider 4 moves outward. When the fixed end 2 reaches the specified position, under the action of the elastic force, the slider 4 slides radially along the outer sleeve 1 and is inserted into the groove 5 of the fixed end 2, so that the core shaft and the outer sleeve 1 remain fixed. Through the set connection mechanism, the core shaft and the outer sleeve 1 can be quickly connected, which is more convenient for disassembly and assembly than the pin connection method.

[0029] As a preferred solution of the present invention, the other end of the slider 4 is outside the outer jacket 1, the outer wall of the outer jacket 1 is provided with one end of a tension spring 7, the other end of the tension spring 7 is provided on the other end of the slider 4, and the slider 4 is provided with a limiting portion 8, under the tension of the tension spring 7, the limiting portion 8 is in contact with the outer wall of the outer jacket 1;

[0030] When using, Figure 1 , Figure 2 and Figure 4 As shown, the two ends of the tension spring 7 are fixedly connected to the outer sleeve 1 and the slider 4 respectively. Under the tension of the tension spring 7, the limiting portion 8 contacts the outer wall of the outer sleeve 1, and at this time, one end of the slider 4 extends into the groove 5.

[0031] As a preferred solution of the utility model, a sliding portion 9 is provided on the inner wall of the outer sleeve 1, and the fixed end 2 is slidably connected to the sliding portion 9. During the process of inserting the fixed end 2 into the inner part of the outer sleeve 1, the fixed end 2 is slidably connected to the sliding portion 9, so that the slider 4 can be smoothly extended into the inner part of the groove 5. The provided sliding portion 9 facilitates the adjustment of the angle of the fixed end 2, prepares for the subsequent extension of the slider 4 into the groove 5, and is more convenient to use.

[0032] As a preferred solution of the utility model, a blocking portion 10 is provided inside the outer sleeve 1. When the fixed end 2 contacts the blocking portion 10, under the tension of the tension spring 7, one end of the slider 4 extends into the groove 5. The blocking portion 10 is provided to limit the fixed end 2 during the insertion process of the fixed end 2, thereby preventing the fixed end 2 from excessive displacement, and providing conditions for the slider 4 to be smoothly inserted into the groove 5.

[0033] As a preferred solution of the utility model, both upper and lower sides of one end of the slider 4 are flat, and when one end of the slider 4 extends into the groove 5, both upper and lower sides of the slider 4 overlap with the groove 5. Figure 4 As shown, when the fixed end 2 moves upward or downward, the inner wall of the groove 5 generates a force on the plane. Since it is a plane, the slider 4 will not move radially along the outer sleeve 1, thereby improving the connection reliability between the fixed end 2 and the outer sleeve 1.

[0034] As a preferred solution of the utility model, the top of the fixed end 2 has an arc surface. When the fixed end 2 is inserted into the interior of the outer sleeve 1, the arc surface can be used for guidance, so that the fixed end 2 can be inserted into the interior of the outer sleeve 1 more smoothly; when one end of the slider 4 extends into the groove 5, the arc surface overlaps with the guide surface 6, and when the fixed end 2 moves into the interior of the outer sleeve 1, the arc surface overlaps with the guide surface 6, and the arc surface contacts the guide surface 6, generating a thrust on the slider 4 to prevent the arc surface from contacting the plane at the bottom of the slider 4.

[0035] As a preferred solution of the utility model, an unlocking portion 11 is provided at the other end of the slider 4. Specifically, the unlocking portion 11 includes a connecting ring fixedly connected to the other end of the slider 4. The connecting ring is rotatably connected to a pull ring. When removing the fixed end 2, the pull ring is hooked with a finger and the slider 4 is moved radially outward along the outer sleeve 1. After the slider 4 is out of the groove 5, the core shaft can be pulled out.

[0036] As a preferred solution of the utility model, the outer sleeve 1 is provided with a plurality of liquid inlet holes 12, and the axis of each of the liquid inlet holes 12 is inclined toward the forming end 3. The inclined liquid inlet hole 12 design can make the molten copper have a flow trend along the forming end 3 when entering the crystallizer, which helps to distribute the molten copper more evenly inside the outer sleeve 1, reduce local overcooling or overheating, and improve the internal quality and surface finish of the casting.

[0037] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0038] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A directional crystallizer for continuous solidification of copper material, comprising a cylindrical outer shell (1) and a mandrel arranged in the outer shell (1), the mandrel comprising a fixed end (2) and a forming end (3); characterized in that: The fixed end (2) is connected to the outer sleeve (1) via a connecting mechanism; The connection mechanism comprises a slider (4) elastically slidably connected to the outer sleeve (1), wherein the sliding direction of the slider (4) is the radial direction of the outer sleeve (1), a groove (5) is provided on the circumferential outer wall of the fixed end (2), and a guide surface (6) is provided at one end of the slider (4); When the outer sleeve (1) and the fixed end (2) are kept in a fixed position, one end of the sliding block (4) extends into the groove (5).

2. The directional crystallizer for continuous solidification of copper material according to claim 1, characterized in that: The other end of the slider (4) is located outside the outer sleeve (1); one end of a tension spring (7) is provided on the outer wall of the outer sleeve (1); the other end of the tension spring (7) is provided on the other end of the slider (4); the slider (4) is provided with a limiting portion (8); under the tension of the tension spring (7), the limiting portion (8) contacts the outer wall of the outer sleeve (1).

3. The directional crystallizer for continuous solidification of copper material according to claim 2, characterized in that: The inner wall of the outer sleeve (1) is provided with a sliding portion (9), and the fixed end (2) is slidably connected to the sliding portion (9).

4. The directional crystallizer for continuous solidification of copper material according to claim 3, characterized in that: A blocking portion (10) is provided inside the outer sleeve (1), and when the fixed end (2) contacts the blocking portion (10), one end of the slider (4) extends into the groove (5) under the tension of the tension spring (7).

5. The directional crystallizer for continuous solidification of copper material according to claim 4, characterized in that: The upper and lower sides of one end of the slider (4) are both planes, and when one end of the slider (4) extends into the groove (5), the upper and lower sides of the slider (4) overlap with the groove (5).

6. The directional crystallizer for continuous solidification of copper material according to claim 5, characterized in that: The top of the fixed end (2) has an arc surface, and when one end of the sliding block (4) extends into the groove (5), the arc surface overlaps with the guide surface (6).

7. The directional crystallizer for continuous solidification of copper material according to claim 6, characterized in that: The other end of the sliding block (4) is provided with an unlocking portion (11).

8. The directional crystallizer for continuous solidification of copper material according to claim 7, characterized in that: The outer sleeve (1) is provided with a plurality of liquid inlet holes (12), and the axis of each of the liquid inlet holes (12) is arranged to be inclined toward the forming end (3).

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