Water-cooled die-casting extrusion structure

Abstract

The utility model relates to pressure casting equipment technical field, concretely is a water -cooled pressure casting extrusion structure, including fixed mode, forming die, feed rod, extrusion rod, feedback component and adjusting part. The utility model discloses through built -in water cooling system lets cooling channel close forming face, greatly shortens heat exchange path, accelerates material solidification speed, through setting feedback component, through feedback elastic piece intuitive reflection extrusion degree, cooperation fixed unit can lock feed rod when extrusion force reaches preset value, avoids excessive or insufficient extrusion, improves forming consistency and pass rate. Through setting adjusting part can convenient calibration extrusion rod and the distance of fixed mode, promote the adaptability of equipment, guarantee production efficiency's simultaneously, guaranteed the pass rate of product forming.

Description

Technical Field

[0001] This utility model relates to the field of die casting equipment technology, specifically a water-cooled die casting extrusion structure. Background Technology

[0002] In the field of die casting and extrusion technology, water-cooled die casting and extrusion structures have become key equipment for achieving efficient molding and rapid solidification. This structure uses an internally integrated water-cooling system to forcibly cool the extruded material, thereby accelerating solidification, improving production efficiency, and enhancing the material's microstructure and mechanical properties. Currently, typical die casting and extrusion equipment usually consists of an extrusion mechanism, a die unit, a water-cooling circulation system, and a control unit. Its core lies in utilizing water-cooling channels arranged close to the molding surface to achieve rapid heat exchange, ensuring that the product completes its shaping within a short cycle.

[0003] However, because the water-cooling system needs to be as close as possible to the forming surface to ensure cooling effect, the extrusion rod must be precisely controlled in terms of applied force during its advancement. Otherwise, a series of process problems can easily occur. The extrusion force is often affected by many factors, such as the amount of die-casting material fed in, the amount of change in ambient temperature, and the amount of change in temperature inside the forming cavity. All of these factors will cause changes in the extrusion force on the die-casting material when the extrusion rod is working. This is especially true in water-cooled die-casting equipment, where changes in ambient temperature are more significant. When the extrusion force changes during extrusion, on the one hand, if the extrusion force is too large, the forming surface under high temperature conditions may undergo local deformation due to the coupling effect of mechanical stress and thermal stress, affecting the shape accuracy and surface quality of the final product. On the other hand, if the extrusion force is too small, fluctuations in the extrusion force will also interfere with the flow behavior of the material in the cavity, leading to defects such as uneven filling, shrinkage cavities, or cold shuts, reducing the consistency of extrusion molding, and affecting the final product quality.

[0004] To address this, a water-cooled die-casting extrusion structure is proposed. Summary of the Invention

[0005] The purpose of this utility model is to provide a water-cooled die-casting extrusion structure to solve the problem that in the prior art, the extrusion force is easily affected by various variables during die-casting extrusion, especially in water-cooled die-casting extrusion equipment. When the extrusion force is too large, it is easy to cause local deformation of the forming surface. When the extrusion force is too small, it is easy to cause uneven filling of material in the cavity, which affects the quality of the final product.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A water-cooled die-casting extrusion structure includes a fixed mold, a forming mold, a feed rod, an extrusion rod, a feedback component, and an adjustment component. The forming mold is connected to the left end of the fixed mold, and a demolding hydraulic cylinder is provided at the left end of the forming mold. A feed shell is provided at the right end of the fixed mold to provide die-casting material. The feed rod is slidably connected inside the feed shell. The extrusion rod is connected to the right end of the feed rod, and an extrusion hydraulic cylinder is provided at the right end of the extrusion rod. The feedback component is located inside the feed rod and, after the feed rod has extruded the die-casting material to a certain force, it cooperates with the feed shell to stop the feed rod from extruding the die-casting material. The adjustment component is located on the extrusion rod and is used to adjust the distance between the extrusion rod and the fixed mold.

[0007] In the above scheme, both the demolding hydraulic cylinder and the extrusion hydraulic cylinder are fixed on both sides of the fixed mold relative to the fixed mold. The demolding hydraulic cylinder is used to drive the forming mold to move left and right, and the extrusion hydraulic cylinder is used to drive the adjusting rod to move left and right.

[0008] Preferably, the molding mold is equipped with a water cooling system.

[0009] In the above solution, compared with the traditional external water cooling method, the water cooling system is set inside the molding mold, which allows the cooling pipes to be closer to the molding surface. This can further shorten the heat exchange path, accelerate the solidification speed of the material after molding, reduce defects such as shrinkage cavities and cold shuts caused by untimely cooling, and improve the mechanical properties and surface quality of the product.

[0010] Preferably, the protective cover is fitted onto the outside of the molding mold, and the protective cover is slidably connected to the left end of the fixed mold.

[0011] Preferably, the feedback component includes a feedback groove, a feedback spring, and a fixing unit. The feedback groove is located at the right end of the feed rod. The extrusion rod is slidably connected to the feedback groove. The two ends of the feedback spring abut against the left end of the extrusion rod and the inner wall of the feed rod, respectively. The fixing unit is located at the upper end of the feedback groove to fix the feed rod inside the feed housing after the feedback spring has deformed to a certain extent.

[0012] In the above scheme, the purpose of the feedback spring design is that when the feed rod extrudes the die-casting material, the extrusion rod will slide along the feedback groove and compress the feedback spring. The deformation of the feedback spring can intuitively reflect the magnitude of the extrusion force. When the extrusion force reaches the preset value (i.e., the feedback spring is deformed to the corresponding degree), the left end of the feed rod can contact the fixing unit and trigger the fixing unit to lock the extrusion rod in the feeding shell. This prevents the extrusion rod from further extruding the die-casting material after it has been extruded to the specified degree, thus avoiding deformation of the forming surface due to excessive extrusion force or uneven filling due to insufficient extrusion force, thereby improving the consistency of extrusion molding and the product qualification rate.

[0013] Preferably, the fixing unit includes a fixing groove, a fixing block, a fixing baffle, a fixing spring, a fixing chamfer, and a fixing slot. The fixing groove is located at the upper end of the feedback groove inside the feed rod. The fixing block is slidably connected in the fixing groove. The fixing baffle is connected to the side of the fixing block. The two ends of the fixing spring abut against the upper end of the fixing baffle and the inner wall of the feed rod, respectively. The fixing slot is located inside the feed housing. Multiple fixing slots are provided. The fixing chamfer is located at the lower end of the fixing block and cooperates with the left end of the extrusion rod.

[0014] In the above scheme, when the feed rod pushes the feedback spring and drives the extrusion rod to move to the left, the extrusion rod moves to the left and squeezes the die-casting material between the forming mold and the fixed mold. When the feed rod squeezes the die-casting material to a suitable force, the feedback spring is compressed to a specified degree. At this time, the left end of the extrusion rod contacts the fixed chamfer. As the extrusion rod continues to move to the left, it can push the fixed block upward along the fixed chamfer, so that the fixed block can move upward and lock into the fixed slot, thereby fixing the feed rod and the feed shell and avoiding excessive extrusion of the die-casting material by the feed rod.

[0015] Preferably, the adjusting component includes an adjusting bolt, an adjusting rod, and an adjusting screw hole. The adjusting rod is fixedly connected to the left end of the extrusion hydraulic rod. An adjusting groove is provided at the left end of the adjusting rod. The right end of the extrusion rod is slidably connected in the adjusting groove. The adjusting screw hole is provided on the adjusting rod. The adjusting bolt is fixed to the adjusting rod through the threaded engagement of the adjusting screw hole. The adjusting bolt engages with the upper end of the adjusting rod.

[0016] Preferably, the upper end of the extrusion rod is provided with a friction surface, which mates with the lower end of the adjusting bolt.

[0017] In the above scheme, when it is necessary to adjust the length between the extrusion rod and the fixed mold by extending the extension end of the extrusion hydraulic rod to its limit, the operator only needs to turn the adjusting bolt upward relative to the adjusting rod along the thread direction of the adjusting bolt and the adjusting screw hole, so that the lower end of the adjusting bolt is disengaged from the upper end of the adjusting rod, thereby allowing the extrusion rod to move relative to the adjusting rod and adjusting the extension length of the extrusion rod. After adjustment, simply turn the adjusting bolt downward again so that the lower end of the adjusting bolt can re-contact the upper end of the adjusting rod, thus fixing the extrusion rod and the adjusting rod relatively. The friction surface setting in this application can make the extrusion rod and the adjusting rod more stable after the lower end of the adjusting bolt contacts the extrusion rod. The friction surface can be made of abrasive particles, or it can be achieved by opening multiple slots on the upper end of the extrusion rod to mate with the adjusting bolt. These are not shown in the figure, but only need to achieve the mating and fixing of the adjusting bolt and the extrusion rod.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows: The built-in water-cooling system brings the cooling channels close to the forming surface, significantly shortening the heat exchange path and accelerating material solidification. Feedback components visually reflect the extrusion pressure via feedback springs, and the fixing unit locks the feed rod when the extrusion pressure reaches a preset value, preventing over- or under-extrusion and improving forming consistency and yield. Adjustable components allow for easy calibration of the distance between the extrusion rod and the fixed die, enhancing equipment adaptability and ensuring both production efficiency and product yield. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model; Figure 2 This is a schematic diagram of the overall cross-sectional structure of this utility model; Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle; Figure 4 This is a schematic cross-sectional view of the fixing block of this utility model. Figure 5 For the present utility model Figure 4 Enlarged structural diagram at point B; Figure 6 This is a schematic diagram of the exploded structure of the adjusting bolt of this utility model.

[0020] In the diagram: 1. Fixed mold; 2. Forming mold; 3. Feed rod; 4. Extrusion rod; 5. Feedback component; 6. Adjustment component; 7. Demolding hydraulic cylinder; 8. Feed housing; 9. Extrusion hydraulic cylinder; 21. Protective cover; 51. Feedback groove; 52. Feedback spring; 53. Fixing unit; 531. Fixing groove; 532. Fixing block; 533. Fixing baffle; 534. Fixing spring; 535. Fixing chamfer; 536. Fixing slot; 61. Adjusting bolt; 62. Adjusting rod; 63. Adjusting groove. Detailed Implementation

[0021] To ensure a clear and complete description of the technical solutions in the embodiments of this utility model, and to make the features and advantages more apparent and understandable, the specific implementation methods of this utility model are described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Example

[0022] Please see Figures 1 to 6This utility model provides a water-cooled die-casting extrusion structure, including a fixed mold 1, a forming mold 2, a feeding rod 3, an extrusion rod 4, a feedback component 5, and an adjustment component 6. The forming mold 2 is connected to the left end of the fixed mold 1, and a demolding hydraulic cylinder 7 is provided at the left end of the forming mold 2. A feeding shell 8 is provided at the right end of the fixed mold 1 for providing die-casting material. The feeding rod 3 is slidably connected inside the feeding shell 8. The extrusion rod 4 is connected to the right end of the feeding rod 3, and an extrusion hydraulic cylinder 9 is provided at the right end of the extrusion rod 4. The feedback component 5 is provided inside the feeding rod 3 and is used to stop the feeding rod 3 from extruding the die-casting material after the feeding rod 3 has extruded the die-casting material to a certain force, in conjunction with the feeding shell 8. The adjustment component 6 is provided on the extrusion rod 4 and is used to adjust the distance between the extrusion rod 4 and the fixed mold 1.

[0023] Specifically, the demolding hydraulic cylinder 7 and the extrusion hydraulic cylinder 9 are both fixed on both sides of the fixed mold 1 relative to the fixed mold 1. The demolding hydraulic cylinder 7 is used to drive the forming mold 2 to move left and right, and the extrusion hydraulic cylinder 9 is used to drive the adjusting rod 62 to move left and right.

[0024] Specifically, a water-cooling system is installed inside the molding mold 2. The water-cooling system of this application is located inside the molding mold 2 and can employ existing technologies, including pipes, flow control valves, cooling media, and water pumps. Compared to traditional external water-cooling methods, installing the water-cooling system inside the molding mold 2 allows the cooling pipes to be closer to the molding surface. On the one hand, this further shortens the heat exchange path, accelerates the solidification speed of the material after molding, reduces defects such as shrinkage cavities and cold shuts caused by untimely cooling, and improves the mechanical properties and surface quality of the product. On the other hand, the built-in water-cooling system can more accurately control the internal temperature of the molding mold 2, reduce the impact of ambient temperature fluctuations on the temperature inside the molding cavity, and reduce extrusion pressure changes caused by temperature instability, thereby alleviating problems such as molding surface deformation or uneven material filling caused by extrusion pressure fluctuations.

[0025] Please see Figure 2 The protective cover 21 is fitted over the outside of the molding mold 2 and is slidably connected to the left end of the fixed mold 1. When the extrusion rod 4 is working, the protective cover 21 is fitted over both the molding mold 2 and the fixed mold 1. The protective cover 21 has a transparent window. After the extrusion rod 4 forces the die-casting material between the molding mold 2 and the fixed mold 1, and the material is cooled and formed by the water cooling system, the demolding hydraulic cylinder 7 first opens, causing the molding mold 2 to move to the left and separate from the fixed mold 1. After the molding mold 2 and the fixed mold 1 have been separated for a period of time, the operator can control the protective cover 21 to slide to the left, so that the protective cover 21 slides to the left side of the molding mold 2. The protective cover 21 effectively isolates the high temperature of the molding mold 2 during operation, preventing operators from being burned due to accidental contact and improving equipment safety.

[0026] Please see Figures 2 to 5The feedback component 5 includes a feedback groove 51, a feedback spring 52, and a fixing unit 53. The feedback groove 51 is located at the right end of the feed rod 3. The extrusion rod 4 is slidably connected to the feedback groove 51. The two ends of the feedback spring 52 abut against the left end of the extrusion rod 4 and the inner wall of the feed rod 3, respectively. The fixing unit 53 is located at the upper end of the feedback groove 51 and is used to fix the feed rod 3 in the feed housing 8 after the feedback spring 52 is deformed to a certain extent.

[0027] Specifically, the purpose of the feedback spring 52 design is that when the feed rod 3 extrudes the die-casting material, the extrusion rod 4 will slide along the feedback groove 51 and compress the feedback spring 52. The deformation of the feedback spring 52 can intuitively reflect the magnitude of the extrusion force. When the extrusion force reaches the preset value (i.e., the feedback spring 52 is deformed to the corresponding degree), the left end of the feed rod 3 can contact the fixing unit 53 and trigger the fixing unit 53 to lock the extrusion rod 4 in the feeding shell. This prevents the extrusion rod 4 from further extruding the die-casting material after it has been extruded to the specified degree, thus avoiding deformation of the forming surface due to excessive extrusion force or uneven filling due to insufficient extrusion force, thereby improving the consistency of extrusion molding and the product qualification rate.

[0028] Please see Figures 3 to 5 The fixing unit 53 includes a fixing groove 531, a fixing block 532, a fixing baffle 533, a fixing spring 534, a fixing chamfer 535, and a fixing slot 536. The fixing groove 531 is opened at the upper end of the feedback groove 51 inside the feed rod 3. The fixing block 532 is slidably connected in the fixing groove 531. The fixing baffle 533 is connected to the side of the fixing block 532. The two ends of the fixing spring 534 abut against the upper end of the fixing baffle 533 and the inner wall of the feed rod 3, respectively. The fixing slot 536 is opened in the feed shell 8. Multiple fixing slots 536 are provided. The fixing chamfer 535 is located at the lower end of the fixing block 532 and cooperates with the left end of the extrusion rod 4.

[0029] Specifically, the engagement of the fixed chamfer 535 with the left end of the extrusion rod 4 means that when the feed rod 3 pushes the feedback spring 52 and drives the extrusion rod 4 to move to the left, the extrusion rod 4 moves to the left and extrudes the die-casting material between the forming mold 2 and the fixed mold 1. When the feed rod extrudes the die-casting material to a suitable force, the feedback spring 52 is compressed to a specified degree. At this time, the left end of the extrusion rod 4 contacts the fixed chamfer 535. As the extrusion rod 4 continues to move to the left, the extrusion rod 4 can push the fixed block 532 upward along the fixed chamfer 535, so that the fixed block 532 can move upward and be inserted into the fixed slot 536, thereby achieving the fixation between the feed rod 3 and the feed shell 8 and avoiding excessive extrusion of the die-casting material by the feed rod 3. Multiple fixing slots 536 are provided to ensure that the feeding rod can maintain appropriate pressure on the die-casting material when it moves to different positions due to changes in the amount of die-casting material fed in, the temperature and pressure between the forming mold 2 and the die-casting mold, etc. This allows the upper end of the fixing block 532 to engage with the fixing slot 536 at multiple positions as it moves upward, thus securing the feeding rod. Furthermore, when the feedback spring 52 needs to be replaced to change its preset deformation, the multiple fixing slots 536 ensure that the fixing block 532 still maintains its engagement with the fixing slot 536 as it moves upward. This allows for flexible adjustment of the extrusion pressure and improves the equipment's adaptability to different production scenarios.

[0030] Please see Figures 5 to 6The adjusting component 6 includes an adjusting bolt 61, an adjusting rod 62, and an adjusting screw hole. The adjusting rod 62 is fixedly connected to the left end of the extrusion hydraulic rod, and an adjusting groove 63 is provided at the left end of the adjusting rod 62. The right end of the extrusion rod 4 is slidably connected in the adjusting groove 63. The adjusting screw hole is provided on the adjusting rod 62, and the adjusting bolt 61 is fixed to the adjusting rod 62 through the threaded engagement of the adjusting screw hole. The adjusting bolt 61 engages with the upper end of the adjusting rod 62. The upper end of the extrusion rod 4 is provided with a friction surface (not shown in the diagram), which engages with the lower end of the adjusting bolt 61. The "fitting" here refers to the following: when adjusting the extension of the hydraulic rod to drive the adjusting rod 62 to its maximum length, and considering the distance between the extrusion rod 4 and the fixed mold 1, the operator only needs to turn the adjusting bolt 61 upward relative to the adjusting rod 62 along the thread direction of the adjusting bolt 61 and the adjusting screw hole. This disengages the lower end of the adjusting bolt 61 from the upper end of the adjusting rod 62, allowing the extrusion rod 4 to move relative to the adjusting rod 62, thus adjusting the extension length of the extrusion rod 4. After adjustment, simply turn the adjusting bolt 61 downward again so that the lower end of the adjusting bolt 61 can re-engage with the upper end of the adjusting rod 62, thus fixing the extrusion rod 4 and the adjusting rod 62 relatively. The friction surface in this application makes the fixing of the extrusion rod 4 and the adjusting rod 62 more stable after the lower end of the adjusting bolt 61 contacts the extrusion rod 4. The friction surface can be made of abrasive particles, or it can be achieved by opening multiple slots on the upper end of the extrusion rod 4 to mate with the adjusting bolt 61. These are not shown in the figure; the only requirement is to achieve the mating and fixing of the adjusting bolt 61 and the extrusion rod 4.

[0031] Working principle: During die casting extrusion, the operator first adjusts the equipment status according to production needs. The distance between the extrusion rod 4 and the fixed mold 1 is changed by adjusting component 6. Specifically, the adjusting bolt 61 is turned upwards along the thread direction of the adjusting bolt 61 and the adjusting screw hole, so that its lower end is disengaged from the friction surface of the upper end of the extrusion rod 4. At this time, the extrusion rod 4 can move freely in the adjusting groove 63 of the adjusting rod 62. After adjusting to the appropriate position, the adjusting bolt 61 is turned downwards, and the extrusion rod 4 and the adjusting rod 62 are fixed relative to each other by means of the friction surface, thus completing the initial distance calibration.

[0032] After the equipment is started, the feed shell 8 at the right end of the fixed mold 1 provides the die-casting material. The extrusion hydraulic cylinder 9 drives the adjusting rod 62 to move to the left. The adjusting rod 62 then pushes the extrusion rod 4 and the feed rod 3 to move to the left within the feed shell 8, squeezing the die-casting material into the cavity between the fixed mold 1 and the forming mold 2. During this process, the built-in water cooling system in the forming mold 2 operates synchronously. The cooling channel is close to the forming surface to accelerate heat exchange, quickly reduce the cavity temperature, promote the solidification of the die-casting material, and precisely control the internal temperature of the forming mold 2 to reduce the impact of environmental fluctuations on the forming process.

[0033] During the extrusion process, the feedback component 5 monitors and controls the extrusion force in real time. When the feed rod 3 moves to the left to extrude the die-casting material, the extrusion rod 4 slides along the feedback groove 51 at the right end of the feed rod 3 and compresses the feedback spring 52. The deformation of the feedback spring 52 directly reflects the magnitude of the extrusion force. When the extrusion force reaches the preset value, the feedback spring 52 is compressed to a specified degree, and the left end of the extrusion rod 4 contacts the fixing chamfer 535 at the lower end of the fixing block 532. As the extrusion rod 4 continues to move to the left, the fixing block 532 is pushed upward, compressing the fixing spring 534 in the fixing groove 531 until the upper end of the fixing block 532 is engaged in the fixing slot 536 in the feed housing 8, fixing the feed rod 3 in the feed housing 8 and avoiding over-extrusion or under-extrusion. If production conditions change, the setting of multiple fixing slots 536 can adapt to the fixing requirements of different extrusion positions, and the cooperation between the fixing block 532 and the slot can be guaranteed even after replacing the feedback spring 52.

[0034] During extrusion molding, a protective cover 21 is fitted over the outside of the forming mold 2 and the fixed mold 1. A transparent window allows for easy observation of the operation, while also insulating against high temperatures to prevent burns to operators. After molding, the demolding hydraulic cylinder 7 moves the forming mold 2 to the left, separating it from the fixed mold 1. After a period of separation, the operator controls the protective cover 21 to slide to the left of the forming mold 2, allowing the molded product to be removed. For continuous operation, the locking of the feeding rod 3 by the fixing unit 53 is released, and the feeding, extrusion, molding, and demolding process is repeated.

[0035] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A water-cooled die-casting extrusion structure, characterized in that: The device includes a fixed mold (1), a forming mold (2), a feed rod (3), an extrusion rod (4), a feedback component (5), and an adjustment component (6). The forming mold (2) is connected to the left end of the fixed mold (1). A demolding hydraulic cylinder (7) is provided at the left end of the forming mold (2). A feed shell (8) is provided at the right end of the fixed mold (1) to provide die-casting material. The feed rod (3) is slidably connected inside the feed shell (8). The extrusion rod (4) is connected to the right end of the feed rod (3). An extrusion hydraulic cylinder (9) is provided at the right end of the extrusion rod (4). The feedback component (5) is located inside the feed rod (3) to stop the feed rod (3) from extruding the die-casting material after the feed rod (3) has extruded the die-casting material to a certain force, in conjunction with the feed shell (8). The adjustment component (6) is located on the extrusion rod (4) to adjust the distance between the extrusion rod (4) and the fixed mold (1).

2. The water-cooled die-casting extrusion structure according to claim 1, characterized in that: A water cooling system is provided inside the molding mold (2).

3. The water-cooled die-casting extrusion structure according to claim 1, characterized in that: A protective cover (21) is fitted on the outside of the molding mold (2), and the protective cover (21) is slidably connected to the left end of the fixed mold (1).

4. The water-cooled die-casting extrusion structure according to claim 2, characterized in that: The feedback component (5) includes a feedback groove (51), a feedback spring (52), and a fixing unit (53). The feedback groove (51) is located at the right end of the feed rod (3). The extrusion rod (4) is slidably connected to the feedback groove (51). The two ends of the feedback spring (52) abut against the left end of the extrusion rod (4) and the inner wall of the feed rod (3), respectively. The fixing unit (53) is located at the upper end of the feedback groove (51) to fix the feed rod (3) in the feed housing (8) after the feedback spring (52) is deformed to a certain extent.

5. The water-cooled die-casting extrusion structure according to claim 4, characterized in that: The fixing unit (53) includes a fixing groove (531), a fixing block (532), a fixing baffle (533), a fixing spring (534), a fixing chamfer (535), and a fixing slot (536). The fixing groove (531) is opened at the upper end of the feedback groove (51) inside the feed rod (3). The fixing block (532) is slidably connected in the fixing groove (531). The fixing baffle (533) is connected to the side of the fixing block (532). The two ends of the fixing spring (534) abut against the upper end of the fixing baffle (533) and the inner wall of the feed rod (3), respectively. The fixing slot (536) is opened in the feed shell (8). There are multiple fixing slots (536). The fixing chamfer (535) is set at the lower end of the fixing block (532). The fixing chamfer (535) cooperates with the left end of the extrusion rod (4).

6. The water-cooled die-casting extrusion structure according to claim 4, characterized in that: The adjusting component (6) includes an adjusting bolt (61), an adjusting rod (62), and an adjusting screw hole. The adjusting rod (62) is fixedly connected to the left end of the extrusion hydraulic cylinder (9). An adjusting groove (63) is provided on the left end of the adjusting rod (62). The right end of the extrusion rod (4) is slidably connected in the adjusting groove (63). The adjusting screw hole is opened on the adjusting rod (62). The adjusting bolt (61) is fixed to the adjusting rod (62) through the threaded engagement of the adjusting screw hole. The adjusting bolt (61) engages with the upper end of the adjusting rod (62).

7. The water-cooled die-casting extrusion structure according to claim 6, characterized in that: The upper end of the extrusion rod (4) is provided with a friction surface, which is engaged with the lower end of the adjusting bolt (61).

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