A casting and extrusion molding device for copper-aluminum composite materials

Abstract

The utility model discloses a casting and extrusion forming device for copper-aluminum composite materials, comprising: a mounting frame, a sealing cylinder fixedly installed in the mounting frame, a first rotating groove and a second rotating groove starting from one end of the sealing cylinder, a first extrusion roller and a second extrusion roller rotatably installed in the first rotating groove and the second rotating groove respectively, a roller gap adjustment component is slidably sleeved on the outer surface of the second extrusion roller, and a roller gap is formed on the surface of the second extrusion roller at the central vacant part of the roller gap adjustment component, which can be used for conveying the copper-aluminum composite materials. The present application can control the width of the roller gap through the design of the roller gap adjustment component, and can also adjust the fluidity of the blank shell in the roller gap by adjusting the width of the roller gap, thereby avoiding consuming more energy to maintain a constant extrusion process, resulting in unnecessary energy waste, and thus not being able to make corresponding adjustments according to the specifications required for production.

Description

Technical Field

[0001] The utility model relates to the technical field of casting and rolling extrusion forming devices, in particular to a casting and rolling extrusion forming device of a copper-aluminum composite material. Background Art

[0002] The casting and extrusion molding device is a device specially used for forming metal composite materials, which combines the two processes of casting and extrusion. Its main function is to compound two or more metals in a molten state, and then shape the composite material into the required shape and size by extrusion.

[0003] For example, the patent with the national authorized patent announcement number CN201720245U discloses a continuous casting and extrusion forming device for aluminum, magnesium, copper alloys and composite materials, which solves the problem of low profile performance due to structural defects in the existing aluminum, magnesium alloy and composite material processing and forming devices. A driven shaft is provided on the frame, and a casting roller is provided on the driven shaft, and the lower roller surface of the casting roller is transitionally matched with the upper surface of the extrusion seat and the sealing groove block. A crystallizer is provided above the casting roller and the extrusion roller, and a crystallization hole is opened on the crystallizer, and the lower end of the crystallization hole is located above the contact part between the casting roller and the extrusion roller. The lower surface of the crystallizer is transitionally matched with the roller surface of the casting roller and the extrusion roller, and a rotating drive mechanism is provided on the driving shaft and the driven shaft. The utility model greatly improves the performance of the profile by adding a casting roller and a crystallizer, making it possible to manufacture the profile into high-precision thin-walled, ultra-thin, and ultra-long requirements, while having the advantages of simple structure, convenient operation and low cost.

[0004] However, the above-mentioned continuous casting and extrusion molding device for aluminum, magnesium, copper alloys and composite materials cannot adjust the size of the extrusion trough, resulting in an inability to adjust the size according to the specifications required for production, and further unable to adjust the size of the roll gap according to the fluidity of the material and the extrusion conditions. Utility Model Content

[0005] The purpose of the utility model is to provide a casting and rolling extrusion molding device for copper-aluminum composite materials to solve the problems proposed in the above-mentioned background technology that the materials cannot be appropriately prepared according to the specifications required for production, and the size of the roll gap cannot be adjusted according to the fluidity of the materials and the extrusion conditions.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A casting and extrusion forming device for a copper-aluminum composite material, comprising: a mounting frame, a sealing cylinder is fixedly installed in the mounting frame, a first rotating groove and a second rotating groove are provided at one end of the sealing cylinder, a first extrusion roller and a second extrusion roller are rotatably installed in the first rotating groove and the second rotating groove respectively, a roller gap adjustment component is slidably sleeved on the outer surface of the second extrusion roller, and a roller gap is formed on the surface of the second extrusion roller at the central empty space of the roller gap adjustment component, so that the copper-aluminum composite material can be conveyed in;

[0008] Among them, a first feed inlet and a second feed inlet are respectively opened on the surface of the conveying mounting frame and the sealing cylinder, the first feed inlet and the second feed inlet are flush and connected, and the second feed inlet is connected to the sealing cylinder.

[0009] Preferably, the sealing cylinder and one end of the mounting frame are provided with a first connecting port and a second connecting port, the first connecting port and the second connecting port are flush but connected, and the first connecting port and the second connecting port can allow the roller gap adjustment component to pass through them to the outside of the mounting frame.

[0010] Preferably, a first connecting rod and a second connecting rod are fixedly installed in the first extrusion roller and the second extrusion roller respectively, both ends of the first connecting rod and the second connecting rod pass through both sides of the mounting frame, gears are fixedly installed on the outer surfaces of one end of the first connecting rod and the second connecting rod, and the gears on the outer surfaces of the first connecting rod and the second connecting rod are meshed with each other.

[0011] Preferably, the other end of the second connecting rod is fixedly connected to the output shaft of the motor.

[0012] Preferably, the roller gap adjustment assembly includes a first sleeve and a second sleeve, and the first sleeve and the second sleeve are both slidably mounted on both sides of the outer surface of the second extrusion roller, and the space between the first sleeve and the second sleeve will form a roller gap on the surface of the second extrusion roller, and the first sleeve and the second sleeve are attached to the outer surface of the first extrusion roller.

[0013] Preferably, an arc plate is fixedly mounted on one end of the first sleeve, and the arc plate slides on the outer surface of the second sleeve at the same time, and the arc plate can make the lower end of the roller gap gradually reduce.

[0014] Preferably, the roller gap formed between the first sleeve and the second sleeve is connected to the discharge port, the discharge port starts at the outer surface of the sealing cylinder, the discharge port is flush with and connected to the discharge pipe, and the discharge pipe is connected and installed on the outer surface of the mounting frame.

[0015] Preferably, guide rail blocks are fixedly mounted on the outer surfaces of the first sleeve and the second sleeve, and the guide rail blocks are slidably mounted in the guide rail groove, and the guide rail groove starts from the second rotation groove.

[0016] Preferably, a connecting plate is fixedly installed on the outer surfaces of the first sleeve and the second sleeve, and the connecting plate passes through the first connecting port and the second connecting port, and a connecting column is fixedly installed on one end of the connecting plate, and a positive thread portion and a negative thread portion are threadedly installed in the connecting column on the outer surfaces of the first sleeve and the second sleeve, and the positive thread portion and the negative thread portion are threadedly passed through one side of the connecting column, and hand wheels are fixedly installed on both ends.

[0017] Preferably, a butterfly bolt is threadedly installed on the outer surface of the connecting column, and the butterfly bolt can be threadedly penetrated into the threaded hole of the connecting column and can be pressed against the outer surfaces of the positive thread part and the negative thread part.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] 1. Through the design of the first extrusion roller, the second extrusion roller and the roll gap adjustment component, before the copper-aluminum composite material is extruded and formed, the copper strip is unwound, and then the molten metal aluminum liquid is evenly distributed into the crystallizer through the distributor to ensure that the aluminum liquid can evenly cover the surface of the copper strip and solidify smoothly. The aluminum liquid solidifies to form a shell, and then it is fed into the roll gap between the first extrusion roller and the second extrusion roller. As the first extrusion roller and the second extrusion roller continue to rotate, the copper / aluminum composite plate is brought out of the roll gap under the action of the rolling force. This process realizes the solid-liquid casting and rolling compound between the copper strip and the aluminum liquid, forming a copper-aluminum composite material, and is discharged to the outside from the discharge port and the discharge pipe along the roll gap;

[0020] When the billet shell is bitten into the roll gap, the staff can adjust the roll gap adjustment component to slide on both ends of the outer surface of the first extrusion roller according to the required extrusion specifications, so as to expand the width of the roll gap, that is, to achieve the function of adjusting the roll gap. By adjusting the width of the roll gap, the fluidity of the billet shell in the roll gap can also be adjusted, thereby avoiding consuming more energy to maintain a constant extrusion process, resulting in unnecessary energy waste.

[0021] 2. Through the design of the first sleeve, the second sleeve and the arc plate, the blank shell is fed by the staff from the first feed port and the second feed port to between the first extrusion roller and the second extrusion roller, and the blank shell enters the roller gap formed between the first sleeve and the second sleeve. Then, with the relative synchronous rotation of the first extrusion roller and the second extrusion roller, the blank shell can be bitten into the roller gap, and the roller gap at the lower ends of the first extrusion roller and the second extrusion roller will be thickened by the arc plate in the roller gap, so that the lower section of the roller gap can be gradually reduced, so that the bitten blank shell can be gradually extruded and formed by the first extrusion roller and the second extrusion roller, thereby achieving the solid-liquid casting and rolling composite between the copper strip and the aluminum liquid.

[0022] 3. Through the design of the positive thread part, the reverse thread part, the connecting column, the connecting plate and the butterfly bolt, when the blank shell is bitten into the roll gap, the staff can turn the hand wheel according to the required extrusion specifications to drive the positive thread part and the reverse thread part to drive the two sets of connecting columns and drive the first sleeve and the second sleeve at one end of the connecting plate to expand or shrink synchronously to both ends on the outer surface of the first extrusion roller, thereby expanding or shrinking the width of the roll gap, that is, achieving the function of regulating the roll gap, and by regulating the width of the roll gap, the fluidity of the blank shell in the roll gap can also be regulated, thereby avoiding consuming more energy to maintain a constant extrusion process, resulting in unnecessary energy waste;

[0023] The first sleeve and the second sleeve which are synchronously expanded or contracted toward both ends can always block the second feed port, so that the incoming blank shell can always be located in the roller gap;

[0024] After adjusting the positions of the first sleeve and the second sleeve, the staff can press the butterfly bolt thread into the threaded hole of the connecting column, so that the threaded portion of the butterfly bolt can be pressed against the outer surfaces of the positive thread portion and the negative thread portion, so that it can apply a locking force to the rotation of the positive thread portion and the negative thread portion. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2 It is a schematic diagram of the step-by-step reduction of the roll gap of the utility model;

[0027] Figure 3 This is a schematic diagram of the gear structure of the utility model;

[0028] Figure 4 This is a schematic diagram of the structure of the second feed port of the utility model;

[0029] Figure 5 This is a schematic diagram of the discharge port structure of the utility model;

[0030] Figure 6 This is a schematic diagram of the structure of the first feed port of the utility model;

[0031] Figure 7 This is a schematic diagram of the structure of the first squeezing roller and the second squeezing roller of the utility model;

[0032] Figure 8 It is a structural schematic diagram of the roller gap adjustment component of the utility model.

[0033] In the figure: 1. mounting frame; 101. discharge port; 102. first feed port; 103. discharge pipe; 104. sealing cylinder; 105. second feed port; 106. first connecting port; 107. second connecting port; 108. first rotating groove; 109. second rotating groove; 110. guide rail groove; 2. motor; 201. first connecting rod; 202. second connecting rod; 203. gear; 3. roller gap adjustment assembly; 301. first sleeve; 302. second sleeve; 303. guide rail block; 304. connecting plate; 305. connecting column; 306. butterfly bolt; 307. reverse threaded portion; 308. normal threaded portion; 309. arc plate; 4. first extrusion roller; 401. second extrusion roller. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] See also Figure 1-Figure 8 , the utility model provides the following technical solutions:

[0036] like Figure 1-Figure 7 As shown, a casting and extrusion molding device of a copper-aluminum composite material comprises: a mounting frame 1, a sealing cylinder 104 is fixedly installed in the mounting frame 1, a first rotating groove 108 and a second rotating groove 109 are provided at one end of the sealing cylinder 104, a first extrusion roller 4 and a second extrusion roller 401 are rotatably installed in the first rotating groove 108 and the second rotating groove 109 respectively, a roller gap adjustment component 3 is slidably sleeved on the outer surface of the second extrusion roller 401, and a roller gap is formed on the surface of the second extrusion roller 401 at the central empty space of the roller gap adjustment component 3, so that the copper-aluminum composite material can be conveyed in;

[0037] The surfaces of the conveying mounting frame 1 and the sealing cylinder 104 are respectively provided with a first feed port 102 and a second feed port 105 . The first feed port 102 and the second feed port 105 are flush and connected, and the second feed port 105 is connected to the sealing cylinder 104 .

[0038] The sealing cylinder 104 and one end of the mounting frame 1 are provided with a first connecting port 106 and a second connecting port 107 , which are flush but connected, and can allow the roller gap adjustment component 3 to pass through to the outside of the mounting frame 1 .

[0039] The first connecting rod 201 and the second connecting rod 202 are fixedly installed in the first squeezing roller 4 and the second squeezing roller 401 respectively. Both ends of the first connecting rod 201 and the second connecting rod 202 pass through both sides of the mounting frame 1. Gears 203 are fixedly installed on the outer surfaces of one end of the first connecting rod 201 and the second connecting rod 202. The gears 203 on the outer surfaces of the first connecting rod 201 and the second connecting rod 202 are meshed with each other.

[0040] The other end of the second connecting rod 202 is fixedly connected to the output shaft of the motor 2 .

[0041] Through the design of the first extrusion roller 4, the second extrusion roller 401 and the roll gap adjustment component 3, before the copper-aluminum composite material is extruded and formed, the copper strip is unwound, and then the molten metal aluminum liquid is evenly distributed into the crystallizer through the distributor to ensure that the aluminum liquid can evenly cover the surface of the copper strip and solidify smoothly. The aluminum liquid solidifies to form a shell, which is then fed into the roll gap between the first extrusion roller 4 and the second extrusion roller 401. As the first extrusion roller 4 and the second extrusion roller 401 continue to rotate, the copper / aluminum composite plate is brought out of the roll gap under the action of the rolling force. This process realizes the solid-liquid casting and rolling compounding between the copper strip and the aluminum liquid, forming a copper-aluminum composite material, and is discharged to the outside from the discharge port and the discharge pipe along the roll gap;

[0042] When the billet shell is bitten into the roll gap, the staff can adjust the roll gap adjustment component 3 to slide toward both ends on the outer surface of the first extrusion roller 4 according to the required extrusion specifications, so as to expand the width of the roll gap, that is, to achieve the function of adjusting the roll gap, and by adjusting the width of the roll gap, the fluidity of the billet shell in the roll gap can also be adjusted, thereby avoiding consuming more energy to maintain a constant extrusion process, resulting in unnecessary energy waste.

[0043] like Figure 8 As shown, the roller gap adjustment assembly 3 includes a first sleeve 301 and a second sleeve 302. The first sleeve 301 and the second sleeve 302 are both slidably mounted on both sides of the outer surface of the second extrusion roller 401. The space between the first sleeve 301 and the second sleeve 302 will form a roller gap on the surface of the second extrusion roller 401. The first sleeve 301 and the second sleeve 302 are pressed against the outer surface of the first extrusion roller 4.

[0044] An arc plate 309 is fixedly mounted on one end of the first sleeve 301 , and the arc plate 309 slides on the outer surface of the second sleeve 302 at the same time. The arc plate 309 can make the lower end of the roller gap gradually reduce.

[0045] The roller gap formed between the first sleeve 301 and the second sleeve 302 is connected to the discharge port 101, and the discharge port 101 starts at the outer surface of the sealing cylinder 104. The discharge port 101 is flush with and connected to the discharge pipe 103, and the discharge pipe 103 is connected and installed on the outer surface of the mounting frame 1.

[0046] The outer surfaces of the first sleeve 301 and the second sleeve 302 are both fixedly mounted with guide rail blocks 303 . The guide rail blocks 303 are slidably mounted in the guide rail groove 110 . The guide rail groove 110 starts from the second rotation groove 109 .

[0047] Through the design of the first sleeve 301, the second sleeve 302 and the arc plate 309, the blank shell is fed by the staff from the first feed port 102 and the second feed port 105 to between the first extrusion roller 4 and the second extrusion roller 401, and the blank shell enters the roller gap formed between the first sleeve 301 and the second sleeve 302. Then, with the relative synchronous rotation of the first extrusion roller 4 and the second extrusion roller 401, the blank shell can be bitten into the roller gap, and the roller gap at the lower end of the first extrusion roller 4 and the second extrusion roller 401 will be thickened by the arc plate 309 in the roller gap, so that the lower section of the roller gap can be gradually reduced, so that the bitten blank shell can be gradually extruded and formed by the first extrusion roller 4 and the second extrusion roller 401, thereby achieving the solid-liquid casting and rolling composite between the copper strip and the aluminum liquid.

[0048] like Figure 8 As shown, a connecting plate 304 is fixedly installed on the outer surface of the first sleeve 301 and the second sleeve 302, and the connecting plate 304 passes through the first connecting port 106 and the second connecting port 107. A connecting column 305 is fixedly installed on one end of the connecting plate 304. A positive thread portion 308 and a reverse thread portion 307 are threadedly installed inside the connecting column 305 on the outer surface of the first sleeve 301 and the second sleeve 302. The positive thread portion 308 and the reverse thread portion 307 are both threadedly passed through one side of the connecting column 305, and hand wheels are fixedly installed on both ends.

[0049] A butterfly bolt 306 is threadedly installed on the outer surface of the connecting column 305 . The butterfly bolt 306 can be threadedly penetrated into the threaded hole of the connecting column 305 and can be pressed against the outer surfaces of the positive thread portion 308 and the reverse thread portion 307 .

[0050] Through the design of the positive thread part 308, the reverse thread part 307, the connecting column 305, the connecting plate 304 and the butterfly bolt 306, when the blank shell is bitten into the roller gap, the staff can turn the hand wheel according to the required extrusion specifications to drive the positive thread part 308 and the reverse thread part 307 to thread the two groups of connecting columns 305 and drive the first sleeve 301 and the second sleeve 302 at one end of the connecting plate 304 to expand or shrink toward both ends on the outer surface of the first extrusion roller 4 synchronously, thereby expanding or shrinking the width of the roller gap, that is, achieving the function of regulating the roller gap, and by regulating the width of the roller gap, the fluidity of the blank shell in the roller gap can also be regulated, thereby avoiding consuming more energy to maintain a constant extrusion process, resulting in unnecessary energy waste;

[0051] The first sleeve 301 and the second sleeve 302 which are synchronously expanded or contracted toward both ends can always block the second feed port 105, so that the incoming blank shell can always be located in the roller gap;

[0052] After adjusting the positions of the first sleeve 301 and the second sleeve 302, the staff can screw the butterfly bolt 306 to press the thread into the threaded hole of the connecting column 305, so that the threaded portion of the butterfly bolt 306 can be pressed against the outer surfaces of the positive thread portion 308 and the reverse thread portion 307, so that the positive thread portion 308 and the reverse thread portion 307 can apply a locking force to the rotation of the positive thread portion 308 and the reverse thread portion 307.

[0053] According to the above technical scheme, the working steps of this scheme are summarized and sorted out: before the process of extruding the copper-aluminum composite material, the copper strip is unwound, and then the molten metal aluminum liquid is evenly distributed into the crystallizer through a distributor to ensure that the aluminum liquid can evenly cover the surface of the copper strip and solidify smoothly. The aluminum liquid solidifies to form a shell, and then it is fed into the roller gap between the first extrusion roller 4 and the second extrusion roller 401. As the first extrusion roller 4 and the second extrusion roller 401 continue to rotate, the copper / aluminum composite plate is brought out of the roller gap under the action of the rolling force. This process realizes the solid-liquid casting and rolling compounding between the copper strip and the aluminum liquid, forming a copper-aluminum composite material, and is discharged to the outside from the discharge port and the discharge pipe along the roller gap;

[0054] When the billet shell is bitten into the roller gap, the staff can turn the hand wheel to drive the positive thread part 308 and the reverse thread part 307 to threadably transmit the two sets of connecting columns 305 according to the required extrusion specifications, and drive the first sleeve 301 and the second sleeve 302 at one end of the connecting plate 304 to simultaneously expand or shrink toward both ends on the outer surface of the first extrusion roller 4, thereby expanding or shrinking the width of the roller gap, thereby achieving the function of regulating the roller gap.

[0055] In summary: it is possible to control the width of the roll gap, and by adjusting the width of the roll gap, the fluidity of the billet shell in the roll gap can also be adjusted, thereby avoiding consuming more energy to maintain a constant extrusion process, resulting in unnecessary energy waste, and thus being unable to be adapted according to the specifications required for production.

[0056] Parts not involved in the present invention are the same as the prior art or can be implemented by the prior art. Although the embodiments of the present invention have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A casting and extrusion molding device for a copper-aluminum composite material, characterized in that: include: A mounting frame (1), wherein a sealing cylinder (104) is fixedly mounted in the mounting frame (1), wherein a first rotating groove (108) and a second rotating groove (109) are provided at one end of the sealing cylinder (104), wherein a first extrusion roller (4) and a second extrusion roller (401) are rotatably mounted in the first rotating groove (108) and the second rotating groove (109), respectively, wherein a roller gap adjustment component (3) is slidably mounted on the outer surface of the second extrusion roller (401), and a central empty space of the roller gap adjustment component (3) forms a roller gap on the surface of the second extrusion roller (401), so as to allow the copper-aluminum composite material to be transported in; A first feed port (102) and a second feed port (105) are respectively provided on the surface of the conveying mounting frame (1) and the sealing cylinder (104); the first feed port (102) and the second feed port (105) are flush and connected; and the second feed port (105) is connected to the sealing cylinder (104).

2. The casting and extrusion molding device of a copper-aluminum composite material according to claim 1 is characterized in that: The sealing cylinder (104) and one end of the mounting frame (1) are provided with a first connecting port (106) and a second connecting port (107); the first connecting port (106) and the second connecting port (107) are flush but connected; the first connecting port (106) and the second connecting port (107) are capable of allowing the roller gap adjustment component (3) to pass through to the outside of the mounting frame (1).

3. The casting and extrusion molding device of a copper-aluminum composite material according to claim 1, characterized in that: A first connecting rod (201) and a second connecting rod (202) are fixedly installed in the first squeezing roller (4) and the second squeezing roller (401), respectively; both ends of the first connecting rod (201) and the second connecting rod (202) extend through both sides of the mounting frame (1); a gear (203) is fixedly installed on the outer surface of one end of the first connecting rod (201) and the second connecting rod (202); the gears (203) on the outer surfaces of the first connecting rod (201) and the second connecting rod (202) are meshed with each other.

4. The casting and extrusion molding device of a copper-aluminum composite material according to claim 3 is characterized in that: The other end of the second connecting rod (202) is fixedly connected to the output shaft of the motor (2).

5. The casting and extrusion molding device of a copper-aluminum composite material according to claim 1, characterized in that: The roller gap adjustment assembly (3) comprises a first sleeve (301) and a second sleeve (302), wherein the first sleeve (301) and the second sleeve (302) are both slidably mounted on both sides of the outer surface of the second extrusion roller (401), and a roller gap is formed on the surface of the second extrusion roller (401) at a space between the first sleeve (301) and the second sleeve (302), and the first sleeve (301) and the second sleeve (302) are pressed against the outer surface of the first extrusion roller (4).

6. The casting and extrusion molding device of the copper-aluminum composite material according to claim 5 is characterized in that: An arc plate (309) is fixedly mounted on one end of the first sleeve (301), and the arc plate (309) simultaneously slides on the outer surface of the second sleeve (302). The arc plate (309) can make the lower end of the roller gap gradually reduce.

7. The casting and extrusion molding device of the copper-aluminum composite material according to claim 5 is characterized in that: The roller gap formed between the first sleeve (301) and the second sleeve (302) is connected to the discharge port (101), and the discharge port (101) starts at the outer surface of the sealing cylinder (104). The discharge port (101) is flush with and connected to the discharge pipe (103), and the discharge pipe (103) is connected and installed on the outer surface of the mounting frame (1).

8. The casting and extrusion molding device of the copper-aluminum composite material according to claim 5 is characterized in that: Guide rail blocks (303) are fixedly mounted on the outer surfaces of the first sleeve (301) and the second sleeve (302). The guide rail blocks (303) are slidably mounted in the guide rail groove (110). The guide rail groove (110) starts in the second rotation groove (109).

9. The casting and extrusion molding device of the copper-aluminum composite material according to claim 5, characterized in that: A connecting plate (304) is fixedly installed on the outer surface of the first sleeve (301) and the second sleeve (302), and the connecting plate (304) passes through the first connecting port (106) and the second connecting port (107). A connecting column (305) is fixedly installed on one end of the connecting plate (304). A positive thread portion (308) and a negative thread portion (307) are threadedly installed inside the connecting column (305) on the outer surface of the first sleeve (301) and the second sleeve (302), and the positive thread portion (308) and the negative thread portion (307) are threadedly passed through one side of the connecting column (305), and hand wheels are fixedly installed at both ends.

10. The casting and extrusion molding device of the copper-aluminum composite material according to claim 9, characterized in that: The outer surface of the connecting column (305) is threadedly mounted with a butterfly bolt (306), and the butterfly bolt (306) can be threadedly penetrated into the threaded hole of the connecting column (305) and can be pressed against the outer surfaces of the positive thread portion (308) and the negative thread portion (307).

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