A pouring machine for precision casting

Abstract

The invention discloses a pouring machine for precision casting, and relates to the technical field of investment casting. A pouring machine for precision casting comprises a frame, a transversely symmetrical mounting plate is fixedly connected to the top of the frame, a first motor is fixedly connected to the mounting plate, a fixed block is fixedly connected to the output shaft of the first motor, a placement plate is fixedly connected between the transversely symmetrical fixed blocks, a detachable ladle is connected to the placement plate, a placement rack is fixedly connected to the frame, and a shell is placed on the placement rack. After the ladle is rotated to align the liquid outlet with the shell, the interception plate will be rotated upward to open for pouring, ensuring that no matter how much molten steel is left in the ladle, accurate and stable pouring can be performed. During pouring, the interception plate and the adsorption plate can intercept the scum on the surface of the molten steel to prevent the scum from entering the shell and affecting the quality of the casting. After the pouring is completed, the vibration plate and the protrusion squeeze and cooperate to drive the placement rack to vibrate, thereby causing the shell to vibrate to eliminate internal pores, further improving the quality of the casting.

Description

Technical Field

[0001] The invention relates to the technical field of investment casting, and in particular to a pouring machine for precision casting. Background Art

[0002] Investment casting is a precision metal casting process used in aerospace, automotive industry, medical equipment and high-end mechanical parts manufacturing. Its core advantage is the ability to produce castings with complex geometric shapes, high dimensional accuracy and good surface finish, especially suitable for small batch production or customized needs. In the precision casting production process, the performance of the pouring machine directly affects the quality and yield rate of the casting. Traditional pouring machines have some problems during operation, especially the treatment of slag on the surface of molten steel and the elimination of pores inside the casting. These two key factors are directly related to the quality of the casting.

[0003] In order to solve the above problems, we propose a pouring machine for precision casting. This pouring machine can effectively scrape off the slag on the surface of molten steel and eliminate pores through the physical method of vibration during the pouring process, which is of great significance for improving the quality of castings and reducing production costs. Summary of the invention

[0004] In order to overcome the shortcomings of traditional pouring machines in treating scum on the surface of molten steel and eliminating pores inside castings, the present invention provides a pouring machine for precision casting, which can effectively scrape off scum on the surface of molten steel and eliminate pores through the physical method of vibration during the pouring process.

[0005] The technical solution of the present invention is: a pouring machine for precision casting, comprising a frame, a transversely symmetrical mounting plate fixedly connected to the top of the frame, a first motor fixedly connected to the mounting plate, a fixed block fixedly connected to the output shaft of the first motor, a placement plate fixedly connected between the transversely symmetrical fixed blocks, a detachable steel ladle connected to the placement plate, a placement rack fixedly connected to the frame, the placement rack is used to place a mold shell, a stirring shaft is rotatably connected in the steel ladle, a second motor is fixedly connected to the bottom of the steel ladle, the output shaft of the second motor is fixedly connected to the stirring shaft, and also includes a transversely symmetrical guide frame, the transversely symmetrical guide frame is fixedly connected to the frame, a first extrusion block is fixedly connected to the top of the guide frame, a cover plate is fixedly connected to the top of the steel ladle, an interception plate is rotatably connected to the cover plate, the interception plate fits the liquid outlet of the steel ladle, a transversely symmetrical torsion spring is connected between the interception plate and the cover plate, a transversely symmetrical contact block is fixedly connected to the interception plate, the contact block is located at the rotation connection between the interception plate and the cover plate, an adsorption plate is fixedly connected to the side of the cover plate close to the interception plate, and a vibration mechanism for driving the placement rack to vibrate is provided on the frame.

[0006] In one embodiment, the contact block is L-shaped, and the contact block is extruded and matched with the adjacent first extrusion block.

[0007] In one of the embodiments, the vibration mechanism includes a laterally symmetrical sliding plate, which is vertically slidably connected to a frame, a first spring is connected between the sliding plate and the frame, an extrusion assembly is provided on the sliding plate and the fixed block, the extrusion assembly is used to control the up and down sliding of the sliding plate, a fixed plate is fixedly connected to the bottom end of the sliding plate, a vibration plate is slidably connected to the fixed plate, a vertically symmetrical third spring is connected between the vibration plate and the adjacent fixed plate, and equidistantly distributed protrusions are fixedly connected to one side of the placement frame close to the vibration plate.

[0008] In one embodiment, a side of the vibration plate close to the protrusion is serrated, and the vibration plate is pressed and matched with the adjacent protrusion.

[0009] In one embodiment, the extrusion assembly includes a mating plate, one end of which is horizontally slidably connected to the top of the sliding plate, a second spring is connected between the mating plate and the adjacent sliding plate, the action direction of the second spring is consistent with the sliding direction of the mating plate, and a second extrusion block equidistantly distributed around the circumference is fixedly connected to the fixed block.

[0010] In one of the embodiments, a wedge-shaped protrusion is provided at the other end of the matching plate, and the matching plate is extruded and matched with the second extrusion block through the wedge-shaped protrusion.

[0011] In one of the embodiments, a fixing mechanism for fixing the mold shell is also included, the fixing mechanism is arranged on the guide frame, the fixing mechanism includes a laterally symmetrical sliding clamp block, the laterally symmetrical sliding clamp block is slidably connected to the guide frame, the guide frame is horizontally arranged, and is used to ensure the horizontal sliding of the sliding clamp block, a fourth spring is connected between the sliding clamp block and the adjacent guide frame, support rods are fixedly connected to the sliding clamp block in a longitudinally symmetrical manner, guide blocks are fixedly connected between the top ends of the longitudinally symmetrical support rods, an opening and closing assembly is provided between the sliding clamp block and the ladle, and the opening and closing assembly is used to automatically control the opening and closing of the sliding clamp block.

[0012] In one embodiment, the side of the sliding clamping blocks that are close to each other is arc-shaped, which is used to fit the shell for clamping.

[0013] In one embodiment, the opening and closing assembly includes a third extrusion block, the third extrusion block is fixedly connected to the bottom end of the ladle, and a matching block is fixedly connected to the sliding clamp block.

[0014] In one embodiment, the third extrusion block is laterally symmetrical and tilted, and the matching block is extrusion-matched with the third extrusion block.

[0015] Beneficial effects: 1. After the ladle rotates downward until the liquid outlet is aligned with the mold shell, the interception plate will rotate upward and open, and the molten steel in the ladle can be poured into the mold shell, ensuring accurate and stable pouring regardless of the amount of molten steel remaining in the ladle. During pouring, the interception plate and the adsorption plate can intercept the scum on the surface of the molten steel to prevent the scum from entering the mold shell and affecting the quality of the casting. After the pouring is completed, the vibration plate and the protrusion squeeze together to drive the placement frame to vibrate, thereby causing the mold shell to vibrate to eliminate internal pores, further improving the quality of the casting.

[0016] 2. In the initial stage of the downward rotation of the ladle, the sliding clamps move toward each other to clamp the upper part of the mold shell for fixing in order to pour, and the guide blocks move toward each other and merge to guide the molten steel poured out of the ladle, so that the molten steel can better enter the mold shell and avoid splashing. When the pouring is completed, the ladle is reversed and reset in the later stage, and the third extrusion block extrusion matching block can automatically control the sliding clamp block and the guide block to open and separate from the mold shell, so that the staff can take and put the mold shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0018] Figure 2 It is a three-dimensional structural schematic diagram of the frame, mounting plate, ladle and other components of the present invention.

[0019] Figure 3 It is a schematic cross-sectional structural diagram of the ladle, stirring shaft and second motor of the present invention.

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the guide frame, the first extrusion block, the cover plate and other components of the present invention.

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the cover plate, interception plate, adsorption plate and other components of the present invention.

[0022] Figure 6 It is a three-dimensional structural schematic diagram of the sliding plate, the vibration plate and the matching plate of the present invention.

[0023] Figure 7 It is a schematic diagram of the three-dimensional structure of the fixing block, the second extrusion block, the matching plate and other components of the present invention.

[0024] Figure 8 It is a schematic diagram of the three-dimensional structure of the fixing plate, the vibration plate, the bumps and other components of the present invention.

[0025] Fig. 9 It is a schematic diagram of the three-dimensional structure of the sliding clamp, support rod, guide block and other components of the present invention.

[0026] Fig.10 It is a three-dimensional structural schematic diagram of components such as the ladle, the third extrusion block and the matching block of the present invention.

[0027] Marked in the figure: 1-frame, 2-mounting plate, 3-first motor, 4-fixed block, 41-placing plate, 5-ladle, 6-placing rack, 7-shell, 8-stirring shaft, 9-second motor, 10-guide rack, 11-first extrusion block, 12-cover plate, 13-intercepting plate, 14-torsion spring, 15-contact block, 16-adsorption plate, 17-sliding plate, 171-first spring, 18-matching plate, 19-second spring, 20-second extrusion block, 21-fixed plate, 22-vibration plate, 23-third spring, 24-bump, 25-sliding clamp, 26-fourth spring, 27-support rod, 28-guide block, 29-third extrusion block, 30-matching block. DETAILED DESCRIPTION

[0028] The present invention will be further described below in conjunction with the embodiments shown in the accompanying drawings.

[0029] Embodiment 1: A pouring machine for precision casting, such as Figure 1-Figure 7 As shown, it includes a frame 1, a mounting plate 2, a first motor 3, a fixed block 4, a placement plate 41, a ladle 5, a placement rack 6, a mold shell 7, a stirring shaft 8, a second motor 9, a guide frame 10, a first extrusion block 11, a cover plate 12, an interception plate 13, a torsion spring 14, a contact block 15, an adsorption plate 16 and a vibration mechanism. The upper part of the frame 1 is fixedly connected to a left-right symmetrical mounting plate 2, the middle part of the mounting plate 2 is fixedly connected to the first motor 3, the output shaft of the first motor 3 is fixedly connected to a fixed block 4, a placement plate 41 is fixedly connected between the left and right fixed blocks 4, the placement plate 41 is connected to a detachable ladle 5, the front part of the frame 1 is fixedly connected to a placement rack 6, the placement rack 6 is used to place the mold shell 7, the ladle 5 is rotatably connected to the stirring shaft 8, and the lower side of the ladle 5 is fixedly connected to the second motor 9. The output shaft of the second motor 9 is fixedly connected to the stirring shaft 8, a left-right symmetrical guide frame 10 is fixedly connected to the upper front side of the frame 1, a first extrusion block 11 is fixedly connected to the upper side of the guide frame 10, a cover plate 12 is fixedly connected to the upper side of the ladle 5, an interception plate 13 is rotatably connected to the front side of the cover plate 12, the interception plate 13 fits the liquid outlet of the ladle 5, a left-right symmetrical torsion spring 14 is connected between the interception plate 13 and the cover plate 12, the left and right parts of the interception plate 13 are fixedly connected with contact blocks 15, the contact block 15 is located at the rotation connection between the interception plate 13 and the cover plate 12, the contact block 15 is L-shaped, the contact block 15 rotates downward to be extruded and matched with the adjacent first extrusion block 11, an adsorption plate 16 is fixedly connected to the front lower side of the cover plate 12, and a vibration mechanism for driving the placement rack 6 to vibrate is provided on the frame 1.

[0030] When using the device, the staff puts the mold shell 7 on the placement rack 6, and then drives the fixed block 4 to rotate through the first motor 3, and the rotation of the fixed block 4 drives the placement plate 41 to rotate. When the placement plate 41 rotates, it rotates with the output shaft of the first motor 3 as the axis, and the rotation of the placement plate 41 drives the steel ladle 5 to rotate. At this time, the cover plate 12 and the intercepting plate 13 close the steel ladle 5, and the molten steel in the steel ladle 5 cannot flow out. The rotation of the placement plate 41 drives the cover plate 12, the intercepting plate 13 and the contact block 15 to rotate downward. When the contact block 15 rotates downward When the ladle 5 contacts the first extrusion block 11, the liquid outlet of the ladle 5 is just aligned with the inlet on the upper side of the mold shell 7. At this time, the ladle 5 continues to rotate, causing the first extrusion block 11 to squeeze the contact block 15, thereby driving the interception plate 13 to rotate and open upward, and the torsion spring 14 is deformed. At this time, the molten steel in the ladle 5 can be poured into the mold shell 7 from the liquid outlet on the front side. The contact block 15 cooperates with the first extrusion block 11 to ensure that the liquid outlet of the ladle 5 is aligned with the inlet of the mold shell 7, and then the interception plate 13 is controlled to open for liquid discharge, ensuring that no matter the steel No matter how much molten steel is left in the ladle 5, accurate and stable pouring can be performed to ensure the pouring effect. When the ladle 5 pours out the molten steel, the molten steel flows out along the interception plate 13. The interception plate 13 can intercept the scum on the surface of the molten steel to prevent the scum from entering the mold shell 7 and affecting the quality of the casting. The adsorption plate 16 can further intercept and adsorb the scum, so that the scum adheres to the adsorption plate 16. When a certain amount of molten steel is poured into the mold shell 7, the staff drives the fixed block 4 to reverse through the first motor 3, and then drives the placement plate 41 and the ladle 5 to reverse. The ladle 5 reverses. The rotation drives the cover plate 12, the intercepting plate 13 and the contact block 15 to rotate upward. The contact block 15 rotates upward and is no longer squeezed by the first squeezing block 11. Under the action of the torsion spring 14 resetting, the intercepting plate 13 rotates downward and re-fits the liquid outlet of the ladle 5, thereby closing the ladle 5. While the ladle 5 is reversed and reset, it will also drive the placement frame 6 to vibrate through the vibration mechanism, thereby causing the mold shell 7 to vibrate to eliminate internal pores, further improving the casting quality. The second motor 9 drives the stirring shaft 8 to rotate to ensure the fluidity of the molten steel in the ladle 5.

[0031] like Figure 1 , Figure 6 , Figure 7 and Figure 8As shown, the vibration mechanism includes a sliding plate 17, a first spring 171, an extrusion assembly, a fixed plate 21, a vibration plate 22, a third spring 23 and a protrusion 24. The upper front side of the frame 1 is vertically slidably connected to a left-right symmetrical sliding plate 17, a first spring 171 is connected between the sliding plate 17 and the frame 1, an extrusion assembly is provided on the sliding plate 17 and the fixed block 4, the extrusion assembly is used to control the sliding plate 17 to slide up and down, a fixed plate 21 is fixedly connected to the lower part of the sliding plate 17, a vibration plate 22 is slidably connected to the fixed plate 21, a third spring 23 symmetrically connected between the vibration plate 22 and the adjacent fixed plate 21, and three equidistantly distributed protrusions 24 are fixedly connected to the left and right parts of the rear side of the placement frame 6, the side of the vibration plate 22 close to the protrusion 24 is serrated, and the vibration plate 22 is squeezed and matched with the adjacent protrusion 24.

[0032] like Figure 7 As shown, the extrusion assembly includes a matching plate 18, a second spring 19 and a second extrusion block 20. The matching plate 18 is horizontally slidably connected to the upper part of the sliding plate 17. The second spring 19 is connected between the matching plate 18 and the adjacent sliding plate 17. The action direction of the second spring 19 is consistent with the sliding direction of the matching plate 18. The fixed block 4 is fixedly connected to the second extrusion blocks 20 distributed equidistantly around the circumference. A wedge-shaped protrusion is provided on the side of the matching plate 18 close to the second extrusion block 20, and the matching plate 18 is extruded and matched with the second extrusion block 20 through the wedge-shaped protrusion.

[0033] When the ladle 5 rotates downward for pouring, the rotation of the fixed block 4 will also drive the second extrusion block 20 to rotate. The second extrusion block 20 rotates to squeeze the wedge-shaped protrusion on the matching plate 18, thereby pushing the matching plate 18 to slide forward, and the second spring 19 is compressed and deformed. When the second extrusion block 20 rotates to separate from the wedge-shaped protrusion on the matching plate 18, under the action of the second spring 19 returning to its original position, the matching plate 18 slides backward and returns to its original position. When the pouring is completed, the fixed block 4 reverses and drives the second extrusion block 20 to reverse. At this time, when the second extrusion block 20 reverses to contact with the matching plate 18, it will drive it to move upward. The upward movement of the matching plate 18 drives the sliding plate 17 to slide upward, and the first spring 171 is deformed. When the second extrusion block 20 is reversed to disengage from the matching plate 18, under the action of the first spring 171 resetting, the sliding plate 17 drives the matching plate 18 to move downward and reset. When the sliding plate 17 slides up and down, it will also drive the fixed plate 21 and the vibration plate 22 to move up and down. When the vibration plate 22 moves up and down, it will be squeezed and matched with the protrusion 24. The vibration plate 22 is squeezed and slides backward, and the third spring 23 is deformed. The reset of the third spring 23 drives the vibration plate 22 to slide forward. Under the action of the third spring 23, the vibration plate 22 continuously collides with the protrusion 24 when moving up and down, and then drives the placement frame 6 to vibrate through the protrusion 24, so that the shell 7 vibrates to eliminate internal pores, thereby further improving the quality of the casting.

[0034] Embodiment 2: Based on embodiment 1, Figure 1 , Fig. 9 and Fig.10 As shown, it also includes a fixing mechanism for fixing the mold shell 7, the fixing mechanism includes a sliding clamp 25, a fourth spring 26, a support rod 27, a guide block 28 and an opening and closing assembly, the sliding clamp 25 is slidably connected in the guide frame 10, the guide frame 10 is horizontally arranged, used to ensure the horizontal sliding of the sliding clamp 25, the side of the sliding clamp 25 close to each other is arc-shaped, used to fit the mold shell 7 for clamping, a fourth spring 26 is connected between the sliding clamp 25 and the adjacent guide frame 10, the front and rear sides of the sliding clamp 25 are fixedly connected to the support rod 27, the guide block 28 is fixedly connected between the tops of the front and rear support rods 27, an opening and closing assembly is provided between the sliding clamp 25 and the ladle 5, the opening and closing assembly is used to automatically control the opening and closing of the sliding clamp 25.

[0035] like Fig.10 As shown, the opening and closing assembly includes a third extrusion block 29 and a matching block 30. The third extrusion block 29 is fixedly connected to the lower side of the ladle 5, and the matching block 30 is fixedly connected to the rear side of the sliding clamp 25. The left and right sides of the third extrusion block 29 are inclined, and the matching block 30 is extruded and matched with the third extrusion block 29.

[0036] In the initial state, the third extrusion block 29 and the matching block 30 are squeezed to make the sliding clamp block 25 in an open state, and the fourth spring 26 is in a deformed state, so that the staff can take and put the mold shell 7. When the ladle 5 rotates, the third extrusion block 29 will move backward and separate from the matching block 30. At this time, under the action of the fourth spring 26 returning to the original position, the sliding clamp block 25 moves toward each other and clamps the upper part of the mold shell 7, thereby fixing the mold shell 7 for pouring. When the sliding clamp block 25 moves toward each other, it will also drive the guide block 28 to move toward each other and merge through the support rod 27. At this time, the guide block 28 is located on the upper part of the mold shell 7, which can guide the molten steel poured out of the ladle 5, so that the molten steel can better enter the mold shell 7 and avoid splashing of the molten steel. After the pouring is completed, the ladle 5 will reverse and reset and will also drive the third extrusion block 29 to move forward. When the third extrusion block 29 moves forward to contact with the matching block 30, the third extrusion block 29 continues to move forward and will squeeze the matching block 30 to move backward, thereby driving the sliding clamping block 25, the support rod 27 and the guide block 28 to move backward and separate from the mold shell 7, so that the staff can take and place the mold shell 7.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pouring machine for precision casting, comprising a frame (1), a transversely symmetrical mounting plate (2) being fixedly connected to the top of the frame (1), a first motor (3) being fixedly connected to the mounting plate (2), a fixing block (4) being fixedly connected to the output shaft of the first motor (3), a placement plate (41) being fixedly connected between the transversely symmetrical fixing blocks (4), a detachable ladle (5) being connected to the placement plate (41), a placement frame (6) being fixedly connected to the frame (1), the placement frame (6) being used to place a mold shell (7), a stirring shaft (8) being rotatably connected inside the ladle (5), a second motor (9) being fixedly connected to the bottom of the ladle (5), the output shaft of the second motor (9) being fixedly connected to the stirring shaft (8), characterized in that: The invention also comprises a transversely symmetrical guide frame (10), the transversely symmetrical guide frame (10) is fixedly connected to the frame (1), a first extrusion block (11) is fixedly connected to the top of the guide frame (10), a cover plate (12) is fixedly connected to the top of the steel ladle (5), an interception plate (13) is rotatably connected to the cover plate (12), the interception plate (13) fits the liquid outlet of the steel ladle (5), a transversely symmetrical torsion spring (14) is connected between the interception plate (13) and the cover plate (12), a transversely symmetrical contact block (15) is fixedly connected to the interception plate (13), the contact block (15) is located at the rotatable connection between the interception plate (13) and the cover plate (12), the contact block (15) is L-shaped, the contact block (15) rotates downward to be extruded and matched with the adjacent first extrusion block (11), a suction plate (16) is fixedly connected to the side of the cover plate (12) close to the interception plate (13), and a vibration mechanism for driving the placement frame (6) to vibrate is provided on the frame (1).

2. A pouring machine for precision casting according to claim 1, characterized in that: The vibration mechanism comprises a laterally symmetrical sliding plate (17), the laterally symmetrical sliding plate (17) being vertically slidably connected to a frame (1), a first spring (171) being connected between the sliding plate (17) and the frame (1), an extrusion assembly being provided on the sliding plate (17) and a fixed block (4), the extrusion assembly being used to control the sliding plate (17) to slide up and down, a fixed plate (21) being fixedly connected to the bottom end of the sliding plate (17), a vibration plate (22) being slidably connected to the fixed plate (21), a vertically symmetrical third spring (23) being connected between the vibration plate (22) and an adjacent fixed plate (21), and equidistantly distributed protrusions (24) being fixedly connected to a side of the placement frame (6) close to the vibration plate (22).

3. A pouring machine for precision casting as claimed in claim 2, characterized in that: One side of the vibration plate (22) close to the protrusion (24) is serrated, and the vibration plate (22) is pressed and matched with the adjacent protrusion (24).

4. A pouring machine for precision casting as claimed in claim 3, characterized in that: The extrusion assembly comprises a matching plate (18), one end of the matching plate (18) is horizontally slidably connected to the top end of the sliding plate (17), a second spring (19) is connected between the matching plate (18) and the adjacent sliding plate (17), the action direction of the second spring (19) is consistent with the sliding direction of the matching plate (18), and the fixed block (4) is fixedly connected to second extrusion blocks (20) equidistantly distributed around the circumference.

5. A pouring machine for precision casting as claimed in claim 4, characterized in that: The other end of the matching plate (18) is provided with a wedge-shaped protrusion, and the matching plate (18) is extruded and matched with the second extrusion block (20) through the wedge-shaped protrusion.

6. A pouring machine for precision casting as claimed in claim 5, characterized in that: The invention also comprises a fixing mechanism for fixing the mold shell (7), the fixing mechanism being arranged on the guide frame (10), the fixing mechanism comprising a laterally symmetrical sliding clamp block (25), the laterally symmetrical sliding clamp block (25) being slidably connected to the guide frame (10), the guide frame (10) being arranged horizontally, and being used to ensure that the sliding clamp block (25) slides horizontally, a fourth spring (26) is connected between the sliding clamp block (25) and the adjacent guide frame (10), a support rod (27) is fixedly connected to the sliding clamp block (25) in a longitudinally symmetrical manner, a guide block (28) is fixedly connected between the top ends of the longitudinally symmetrical support rods (27), an opening and closing assembly is arranged between the sliding clamp block (25) and the ladle (5), and the opening and closing assembly is used to automatically control the opening and closing of the sliding clamp block (25).

7. A pouring machine for precision casting as claimed in claim 6, characterized in that: The sides of the sliding clamping blocks (25) that are close to each other are arc-shaped and are used to fit the mold shell (7) for clamping.

8. A pouring machine for precision casting according to claim 7, characterized in that: The opening and closing assembly comprises a third extrusion block (29), the third extrusion block (29) is fixedly connected to the bottom end of the ladle (5), and a matching block (30) is fixedly connected to the sliding clamp block (25).

9. A pouring machine for precision casting as claimed in claim 8, characterized in that: The third extrusion block (29) is laterally symmetrical and inclined, and the matching block (30) is extrusion-matched with the third extrusion block (29).

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