Forging die frame for engine cylinder block

Abstract

The utility model discloses an engine cylinder block forging die frame, and belongs to the technical field of cylinder block forging. An engine cylinder block forging mold frame comprises a main body support, a conveying table is installed above the main body support, an injection molding bin is fixedly connected to the upper portion of the conveying table, mold bases are symmetrically installed at the left end and the right end of the injection molding bin, and early warning prompting mechanisms are arranged on the sides, away from each other, of the mold bases. According to the device, the deformation block is directly triggered to perform thermal expansion through heat transfer after the mold base is damaged, then the follow-up lifting rope ball is driven to rotate and continuously make a sound, the device is relatively stable and reliable, the device is not prone to being affected by electromagnetic interference or circuit faults, and the device has high working stability; moreover, the system can better adapt to a high-temperature environment, is not liable to fail due to the influence of high temperature, and is suitable for high-temperature early-warning scenes.

Description

Technical Field

[0001] The present application relates to the technical field of cylinder block forging, and in particular to an engine cylinder block forging die frame. Background Art

[0002] Through the design and combination of various components, the die frame can ensure that the die maintains a stable position and posture during the forging process, and provide the necessary support and positioning functions to ensure the accurate forming of the engine block. The die frame can also apply pressure through the clamping mechanism to transfer the force applied by the forging equipment to the die, so that the metal billet is plastically deformed in the die to achieve the forming of the engine block.

[0003] A patent with the publication number CN214236125U discloses a forging die frame roller set, including a rotating shaft, a double-row tapered roller bearing, a hole card, a shaft card, a bearing seat and a bearing protection sleeve. Among them, one end of the bearing protection sleeve has an inner flange, the double-row tapered roller bearing is installed in the bearing protection sleeve, the bearing seat has a cavity with an opening downward, the bearing protection sleeve is installed in the bearing seat, the rotating shaft passes through the bearing seat, the double-row tapered roller bearing and the bearing protection sleeve in the left and right directions, the rotating shaft cooperates with the double-row tapered roller bearing, the hole card is embedded in the bearing protection sleeve, the shaft card is embedded in the rotating shaft, and the hole card and the shaft card respectively limit the outer ring and the inner ring of the double-row tapered roller bearing. Compared with the prior art, the utility model protects the bearing surface of the double-row tapered roller bearing through the bearing protection sleeve, and the structure is simple, compact and durable; the forging die frame roller set is pushed up and down by rotating the adjusting bolt, which is convenient for storing the forging die frame roller set when the die frame does not need to be moved, and is simple to use and easy to operate.

[0004] However, the above technical solution has the following defects:

[0005] (1) In the prior art, after the cylinder workpiece is forged, it is directly placed in a centralized manner for easy transportation and collection. The high-temperature surfaces of the centralized cylinders are in direct contact with each other, which will result in the inability to effectively dissipate heat, causing excessive local temperature and thermal stress, which will increase the risk of thermal cracking of the workpiece. In addition, the high-temperature surfaces in contact with each other will affect the circulation of the cooling medium, resulting in uneven cooling effect, making the cooling speed of the workpiece inconsistent, which may affect the organizational structure and performance of the workpiece;

[0006] (2) Compared with the prior art that uses an alarm to provide a high temperature warning, since the alarm must be powered on to be used, and in order to accurately detect the degree of wear and heat of the mold base, the connector of the alarm must be placed close to the side wall of the mold base. Therefore, compared with the prior art that uses an alarm to provide a high temperature warning, the wires of the alarm are easily damaged in a high temperature environment, causing a short circuit in the circuit, thereby rendering the high temperature warning function ineffective during the production process. Utility Model Content

[0007] One purpose of the present application is to controllably cool the high-temperature outer surface of the cylinder block after it is forged, and then store it in a centralized manner.

[0008] In order to achieve the above purpose, the technical solution adopted in the present application is: an engine cylinder forging die frame, including a main body bracket, a conveying platform is installed above the main body bracket, an injection molding chamber is fixedly connected above the conveying platform, mold seats are symmetrically installed on the left and right ends of the injection molding chamber, and early warning prompt mechanisms are provided on the sides of the mold seats that are away from each other, and mold cooling mechanisms are symmetrically provided on the lower surface of the conveying platform.

[0009] Preferably, the early warning prompt mechanism includes an adapter plate fixedly connected to the inside of the mold base, a heat-conducting rod is fixedly connected to the side of the adapter plate away from the mold base, a placement tube is sleeved on the outer wall of the end of the heat-conducting rod away from the adapter plate, a deformation block is installed in the placement tube at one end close to the heat-conducting rod, a screw rod is slidably connected to the inside of the deformation block, a nut is threadedly connected to the outer wall of the screw rod, a hanging rope ball is fixedly connected to the end of the screw rod away from the deformation block, a metal shell is installed on the outside of the hanging rope ball, and a limit frame is symmetrically and detachably installed on the outer wall of the placement tube, and the limit frame is fixedly connected to the side wall of the injection molding bin.

[0010] Preferably, the overall size of the adapter plate is matched with the size inside the mold base, the adapter plate and the heat conducting rod are made of boron nitride ceramic material as a whole, and the heat conducting rod is configured as a retractable structure.

[0011] Preferably, the deformation block is made of polymer material as a whole, a ball screw structure is formed between the screw rod and the nut, and the nut is initially attached to the side wall of the deformation block.

[0012] Preferably, the sling ball is composed of a fiber rope and a metal ball as a whole, and the sling ball is initially in contact with and fits with the inner wall of the metal shell.

[0013] Preferably, the mold cooling mechanism includes a driving motor installed under the conveying table, the output shaft end of the driving motor is fixedly connected with a convex plate, the end of the convex plate away from the driving motor is rotatably connected with a connecting plate, the end of the connecting plate away from the convex plate is symmetrically fixedly connected with a guide rail, a curved rod is installed inside the guide rail, the end of the curved rod away from the guide rail is fixedly connected with a piston rod, the end of the piston rod away from the curved rod is slidably connected with a piston cylinder, the outer wall of the piston rod is sleeved with a spring, the end of the piston cylinder away from the piston rod is installed with a condensation bin, the sides of the condensation bins away from each other are connected with a conduit, a one-way valve is installed inside the conduit, and a spray frame is installed at the end of the conduit away from the condensation bin.

[0014] Preferably, a solid refrigerant is initially placed inside the condensation bin, the one-way valve is initially in a closed state, and both ends of the spring are fixedly connected to the piston cylinder and the piston rod, respectively.

[0015] Compared with the prior art, the beneficial effects of this application are:

[0016] 1. Compared with the prior art that uses an alarm to provide high temperature warning, the wires of the alarm are easily damaged in a high temperature environment, resulting in a short circuit in the circuit, thereby rendering the high temperature warning function ineffective during the production process. The present device directly triggers the deformation block to expand thermally through the heat transfer after the mold seat is damaged, thereby driving the subsequent rope ball to rotate and continuously make a sound, thereby promptly reminding the staff that the mold seat is damaged. This method does not rely on electricity or electronic components, is relatively stable and reliable, is not easily affected by electromagnetic interference or circuit failure, has high working stability, can better adapt to high temperature environments, is not easily affected by high temperature and fails, and is suitable for high temperature warning scenarios.

[0017] 2. Ensure that the air discharged from the piston barrel is cold air, and finally continue to flow along the inside of the conduit until it is discharged from the spray frame position. Therefore, when the forged cylinder body is driven away from the die seat position and the next cylinder body to be forged is forged, the spray frame can perform cold air cooling treatment on the forged cylinder body. After forging is completed, the cooling treatment can effectively control the cooling rate of the forged cylinder body workpiece to avoid stress concentration and uneven organizational structure caused by excessive temperature, thereby ensuring the stability of the workpiece's organizational structure, and can also improve the hardness and strength of the workpiece, improve its mechanical properties, and by gradually lowering the workpiece temperature, it can reduce the residual stress generated during the forging process to avoid deformation or cracks of the workpiece due to excessive stress. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure proposed by the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of an early warning prompt mechanism of an engine cylinder forging die frame proposed by the utility model;

[0020] Figure 3 This is a partial structural schematic diagram of an early warning prompt mechanism of an engine cylinder forging die frame proposed by the utility model;

[0021] Figure 4 For this utility model Figure 3 A schematic diagram of the partially enlarged structure at center A;

[0022] Figure 5 This is a schematic diagram of the structure of a die cooling mechanism of an engine cylinder forging die frame proposed by the utility model;

[0023] Figure 6 This is a partial structural schematic diagram of a die cooling mechanism of an engine cylinder forging die frame proposed by the utility model;

[0024] Figure 7 This is a partial bottom view structural diagram of a die cooling mechanism of an engine cylinder forging die frame proposed by the utility model;

[0025] Figure 8 For the utility model Figure 7 Schematic diagram of the partially enlarged three-dimensional structure at point B in the middle.

[0026] In the figure: 1. Main bracket; 11. Conveying platform; 12. Injection molding chamber; 13. Mold seat; 2. Early warning prompt mechanism; 21. Adapter plate; 22. Heat conducting rod; 23. Placement cylinder; 24. Deformation block; 25. Screw rod; 26. Nut; 27. Hanging rope ball; 28. Metal shell; 29. ​​Limiting frame; 3. Mold cooling mechanism; 31. Driving motor; 32. Convex plate; 33. Connecting plate; 34. Guide rail; 35. Bending rod; 36. Piston rod; 37. Piston cylinder; 38. Spring; 39. Condensation chamber; 310. Conduit; 311. One-way valve; 312. Spraying frame. DETAILED DESCRIPTION

[0027] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0028] In the description of the present application, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of the present application.

[0029] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0030] The terms "including" and "having" and any variations thereof in the specification and claims of this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0031] The prior art has the following defects:

[0032] (1) In the prior art, after the cylinder workpiece is forged, it is directly placed together for storage for the convenience of transportation and collection. The high-temperature surfaces of the cylinders placed together are in direct contact with each other. The contact between the high-temperature surfaces will result in the ineffective dissipation of heat, causing the local temperature to be too high, resulting in excessive thermal stress, and increasing the risk of thermal cracking of the workpiece. In addition, the high-temperature surfaces in contact with each other will affect the circulation of the cooling medium, resulting in uneven cooling effect, making the cooling speed of the workpiece inconsistent, which may affect the organizational structure and performance of the workpiece.

[0033] (2) Compared with the prior art that uses an alarm to provide a high temperature warning, since the alarm must be powered on to be used, and in order to accurately detect the degree of wear and heat of the mold base, the connector of the alarm must be placed close to the side wall of the mold base. Therefore, compared with the prior art that uses an alarm to provide a high temperature warning, the wires of the alarm are easily damaged in a high temperature environment, causing a short circuit in the circuit, thereby rendering the high temperature warning function ineffective during the production process.

[0034] As an improvement, Figure 1 As shown, the preferred embodiments of the present application are:

[0035] An engine cylinder block forging die frame comprises a main body support 1, a conveying platform 11 is installed above the main body support 1, an injection molding chamber 12 is fixedly connected above the conveying platform 11, mold seats 13 are symmetrically installed at the left and right ends of the injection molding chamber 12, and early warning prompt mechanisms 2 are arranged on the sides of the mold seats 13 that are away from each other, and mold cooling mechanisms 3 are symmetrically arranged on the lower surface of the conveying platform 11.

[0036] like Figures 2 to 4As shown, in this embodiment, the early warning prompt mechanism 2 includes an adapter plate 21 fixedly connected to the inside of the mold base 13, the adapter plate 21 is fixedly connected to a heat-conducting rod 22 on one side away from the mold base 13, and a placement tube 23 is sleeved on the outer wall of one end of the heat-conducting rod 22 away from the adapter plate 21, and a deformation block 24 is installed at one end of the placement tube 23 close to the heat-conducting rod 22, and a screw rod 25 is slidably connected to the inside of the deformation block 24, and a nut 26 is threadedly connected to the outer wall of the screw rod 25, and a hanging rope ball 27 is fixedly connected to the end of the screw rod 25 away from the deformation block 24, and a metal shell 28 is installed on the outside of the hanging rope ball 27, and the placement tube 23 The outer wall of the mold 12 is symmetrically and detachably equipped with a limit frame 29, and the limit frames 29 are fixedly connected to the side walls of the injection molding chamber 12. The overall size of the adapter plate 21 is compatible with the size inside the mold base 13. The adapter plate 21 and the heat-conducting rod 22 are made of boron nitride ceramic material, and the heat-conducting rod 22 is set as a retractable structure. The deformation block 24 is made of polymer material as a whole. A ball screw structure is formed between the screw rod 25 and the nut 26, and the nut 26 is initially attached to the side wall of the deformation block 24. The rope ball 27 is composed of a fiber rope and a metal ball, and the rope ball 27 is initially in contact with the inner wall of the metal shell 28.

[0037] Specifically, the rope ball 27 is initially in contact with and fits with the inner wall of the metal shell 28, and the rope ball 27 is fixedly connected to the screw rod 25 as a whole. Therefore, when the screw rod 25 keeps rotating, it will synchronously drive the rope ball 27 to rotate. Since the rope ball 27 is composed of a combination of fiber rope and metal balls as a whole, the metal balls in the rope ball 27 will continuously contact the metal shell 28 during the rotation process, thereby continuously emitting collision and knocking sounds.

[0038] When the above-mentioned device is used, compared with the prior art that uses an alarm to provide high temperature warning, the wires of the alarm are easily damaged in a high temperature environment, causing a short circuit in the circuit, thereby making the high temperature warning function invalid during the production process. However, this device directly triggers the deformation block 24 to expand thermally through the heat transfer after the mold base 13 is damaged, thereby driving the subsequent hanging rope ball 27 to rotate and continuously make a sound, thereby promptly reminding the staff that the inside of the mold base 13 is damaged. This method does not rely on electricity or electronic components, is relatively stable and reliable, is not easily affected by electromagnetic interference or circuit failures, has high working stability, can better adapt to high temperature environments, is not easily affected by high temperatures and fails, and is suitable for high temperature warning scenarios.

[0039] like Figures 5 to 8As shown, in this embodiment, the mold cooling mechanism 3 includes a driving motor 31 installed under the conveying platform 11, the output shaft end of the driving motor 31 is fixedly connected with a convex plate 32, the end of the convex plate 32 away from the driving motor 31 is rotatably connected with a connecting plate 33, the end of the connecting plate 33 away from the convex plate 32 is symmetrically fixedly connected with a guide rail 34, the inside of the guide rail 34 is installed with a bent rod 35, the end of the bent rod 35 away from the guide rail 34 is fixedly connected with a piston rod 36, and the end of the piston rod 36 away from the bent rod 35 is slidably connected with a piston rod The cylinder 37, the outer wall of the piston rod 36 is sleeved with a spring 38, the end of the piston cylinder 37 away from the piston rod 36 is equipped with a condensation chamber 39, the sides of the condensation chambers 39 away from each other are connected with a conduit 310, the inside of the conduit 310 is equipped with a one-way valve 311, the end of the conduit 310 away from the condensation chamber 39 is equipped with a spray frame 312, the inside of the condensation chamber 39 is initially filled with a solid condensing agent, the one-way valve 311 is initially in a closed state, and the two ends of the spring 38 are fixedly connected to the piston cylinder 37 and the piston rod 36 respectively.

[0040] Specifically, when the output shaft end of the driving motor 31 keeps rotating, it will continuously pull the connecting plate 33 to make it move back and forth linearly along the bottom wall of the main frame 1. When the connecting plate 33 moves in a direction away from one end of the driving motor 31, the inner wall of the guide rail 34 will continuously squeeze the outer wall of the curved rod 35 and then drive the piston rod 36, so that the piston rod 36 keeps moving linearly along the inner wall of the piston cylinder 37. At this time, the spring 38 is gradually compressed, and as the piston rod 36 moves on the inner wall of the piston cylinder 37;

[0041] When the above-mentioned device is used, it is ensured that the air discharged from the piston cylinder 37 is cold air, and finally continues to flow along the inside of the conduit 310 until it is discharged from the spray frame 312 position. Therefore, when the forged cylinder body is transmitted away from the position of the die seat 13, the next cylinder body to be forged is being forged, and the spray frame 312 can perform cold air cooling treatment on the forged cylinder body. After forging is completed, the cooling rate of the forged cylinder body workpiece can be effectively controlled through cooling treatment to avoid stress concentration and uneven organizational structure caused by excessive temperature, thereby ensuring the stability of the workpiece's organizational structure, and can also improve the hardness and strength of the workpiece, improve its mechanical properties, and by gradually lowering the workpiece temperature, the residual stress generated during the forging process can be reduced to avoid deformation or cracks of the workpiece due to excessive stress.

[0042] The working principle of this application is:

[0043] Since the adapter plate 21 is integrally installed inside the mold base 13, and the overall size of the adapter plate 21 is compatible with the size inside the mold base 13, when the mold base 13 is subjected to long-term high temperature and high pressure, its surface is worn and the thickness of the outer wall of the mold base 13 becomes weak, the heat generated when the cylinder body is injected into the mold base 13 will be transferred to the surface of the adapter plate 21. Since the adapter plate 21 and the heat-conducting rod 22 are integrally made of boron nitride ceramic material, the bonding force between atoms or ions in the boron nitride ceramic material is strong, which enables the boron nitride ceramic material to effectively transfer heat energy. Therefore, when the temperature of the mold base 13 is increased, the heat generated when the cylinder body is injected into the mold base 13 will be transferred to the surface of the adapter plate 21. When the heat is transferred to the inside of the placement tube 23 through the heat-conducting rod 22, the temperature inside the placement tube 23 will be continuously increased. Since the deformation block 24 itself is a polymer material, when it is input with heat energy, the molecules will absorb this part of the heat energy and convert it into molecular thermal motion. The molecular thermal motion will weaken the interaction force between the molecules, thereby causing the volume of the material to increase, that is, thermal expansion. When the polymer material expands, it will push the nut 26 at the same time, causing it to move linearly along the outer wall of the screw rod 25. Since a ball screw structure is formed between the screw rod 25 and the nut 26, the linear movement of the nut 26 will drive the screw rod 25 to keep rotating.

[0044] Since the rope ball 27 is initially in contact with the inner wall of the metal shell 28, and the rope ball 27 is fixedly connected to the screw rod 25 as a whole, when the screw rod 25 keeps rotating, it will synchronously drive the rope ball 27 to rotate. Since the rope ball 27 is composed of a fiber rope and a metal ball as a whole, the metal ball in the rope ball 27 will continuously contact the metal shell 28 during the rotation process, thereby continuously emitting collision and knocking sounds. The device directly triggers the deformation block 24 to expand thermally through the heat transfer after the mold seat 13 is damaged, thereby driving the subsequent rope ball 27 to rotate and continuously emit sounds, thereby promptly reminding the staff that the mold seat 13 is damaged. This method does not rely on electricity or electronic components, is relatively stable and reliable, is not easily affected by electromagnetic interference or circuit failures, has high working stability, and can better adapt to high temperature environments. It is not easily affected by high temperature and fails, and is suitable for high temperature warning scenarios.

[0045] Since the driving motor 31 is electrically connected to the device as a whole, when the device starts normally, the driving motor 31 will start synchronously to keep its output shaft rotating. Since the convex plate 32 is fixedly connected to the output shaft end of the driving motor 31, and the connecting plate 33 is located at the eccentric position of the output shaft end of the driving motor 31 as a whole, when the output shaft end of the driving motor 31 keeps rotating, it will continuously pull the connecting plate 33 to make it reciprocate linearly along the bottom wall of the main bracket 1. When the connecting plate 33 moves in a direction away from one end of the driving motor 31, the inner wall of the guide rail 34 will continuously squeeze the outer wall of the curved rod 35 and then drive the piston rod 36, so that the piston rod 36 keeps moving linearly along the inner wall of the piston cylinder 37. At this time, the spring 38 is gradually compressed, and as the piston rod 36 moves on the inner wall of the piston cylinder 37, the space inside the piston cylinder 37 gradually becomes smaller, thereby generating thrust inside it, thereby discharging the air inside it. Since the piston cylinder 37 is connected to the condensation bin 39 , and a solid condensing agent is stored inside the condensation bin 39, and the condensing agent can provide a cooling effect by absorbing the surrounding moisture. Therefore, when the air inside the piston cylinder 37 passes through the solid condensing agent position inside the condensation bin 39, it can be ensured that the air discharged from the piston cylinder 37 is cold air, and finally continues to flow along the inside of the conduit 310 until it is discharged from the spray frame 312 position. Therefore, when the forged cylinder body is driven away from the position of the mold seat 13, the next cylinder body to be forged is forged, and the spray frame 312 can perform cold air cooling treatment on the forged cylinder body. After forging is completed, the cooling treatment can effectively control the cooling rate of the forged cylinder workpiece, avoid stress concentration and uneven organizational structure caused by excessive temperature, thereby ensuring the stability of the organizational structure of the workpiece, and can also improve the hardness and strength of the workpiece, improve its mechanical properties, and by gradually reducing the workpiece temperature, it can reduce the residual stress generated during the forging process, and avoid deformation or cracks of the workpiece due to excessive stress.

[0046] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and the specification only describe the principles of the present application. The present application may have various changes and improvements without departing from the spirit and scope of the present application, and these changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the attached claims and their equivalents.

Claims

1. An engine cylinder block forging die frame, comprising a main frame (1), a conveying platform (11) is installed above the main frame (1), an injection molding chamber (12) is fixedly connected above the conveying platform (11), and a mold seat (13) is symmetrically installed at the left and right ends of the injection molding chamber (12), characterized in that: The sides of the mold seats (13) that are away from each other are each provided with an early warning prompt mechanism (2), and the lower surface of the conveying platform (11) is symmetrically provided with a mold cooling mechanism (3).

2. An engine cylinder block forging die set as claimed in claim 1, characterized in that: The early warning prompt mechanism (2) comprises an adapter plate (21) fixedly connected to the inside of the mold base (13); a heat-conducting rod (22) is fixedly connected to the side of the adapter plate (21) away from the mold base (13); a placement tube (23) is sleeved on the outer wall of one end of the heat-conducting rod (22) away from the adapter plate (21); a deformation block (24) is installed in the inside of the placement tube (23) near the end of the heat-conducting rod (22); a screw rod (25) is slidably connected to the inside of the deformation block (24); a nut (26) is threadedly connected to the outer wall of the screw rod (25); a hanging rope ball (27) is fixedly connected to the end of the screw rod (25) away from the deformation block (24); a metal shell (28) is installed on the outside of the hanging rope ball (27); a limit frame (29) is symmetrically and detachably installed on the outer wall of the placement tube (23); and the limit frame (29) is fixedly connected to the side wall of the injection molding bin (12).

3. An engine cylinder block forging die set as claimed in claim 2, characterized in that: The overall size of the adapter plate (21) is compatible with the size inside the mold base (13); the adapter plate (21) and the heat-conducting rod (22) are made of boron nitride ceramic material as a whole, and the heat-conducting rod (22) is configured as a retractable structure.

4. The engine cylinder block forging die set as claimed in claim 2, characterized in that: The deformation block (24) is made of polymer material as a whole, a ball screw structure is formed between the screw rod (25) and the nut (26), and the nut (26) is initially attached to the side wall of the deformation block (24).

5. The engine cylinder block forging die set as claimed in claim 2, characterized in that: The sling ball (27) is composed of a fiber rope and a metal ball, and the sling ball (27) is initially in contact with and fits the inner wall of the metal shell (28).

6. The engine cylinder block forging die set as claimed in claim 1, characterized in that: The mold cooling mechanism (3) comprises a driving motor (31) installed below the conveying platform (11), the output shaft end of the driving motor (31) is fixedly connected to a convex plate (32), the end of the convex plate (32) away from the driving motor (31) is rotatably connected to a connecting plate (33), the end of the connecting plate (33) away from the convex plate (32) is symmetrically fixedly connected to a guide rail (34), the guide rail (34) is internally installed with a bent rod (35), and the end of the bent rod (35) away from the guide rail (34) is fixedly connected to a piston Rod (36), the end of the piston rod (36) away from the curved rod (35) is slidably connected with a piston cylinder (37), the outer wall of the piston rod (36) is sleeved with a spring (38), the end of the piston cylinder (37) away from the piston rod (36) is installed with a condensation chamber (39), the side of the condensation chamber (39) away from each other is connected with a conduit (310), a one-way valve (311) is installed inside the conduit (310), and the end of the conduit (310) away from the condensation chamber (39) is installed with a spray frame (312).

7. An engine cylinder block forging die set as claimed in claim 6, characterized in that: The interior of the condensation chamber (39) is initially filled with solid condensing agent, the one-way valve (311) is initially in a closed state, and the two ends of the spring (38) are respectively fixedly connected to the piston cylinder (37) and the piston rod (36).

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