Metal die-casting die with waste cutting function

Abstract

The invention relates to the technical field of die-casting dies, in particular to a metal die-casting die with a waste cutting function, which is mounted on an injection machine, extrudes a molten metal material into the die to form a final product, and comprises a top plate, a connecting plate, a cavity plate and a core plate, the mold cavity plate and the mold core plate can be separated or combined to be used for making a metal material into a final product, a connecting plate is arranged at the bottom of the top plate, the mold cavity plate is arranged at the bottom of the connecting plate, and the mold cavity plate and the connecting plate can be separated during mold opening. And a runner body used for enabling a molten metal material to flow into the space between the connecting plate and the cavity plate is further arranged in the center of the bottom of the connecting plate. The slitting device is additionally arranged in the mold to cut the runner waste materials, but a certain allowance is reserved when the slitting device cuts the runner waste materials, the runner waste materials cannot be completely cut off, and subsequent products and runners can be conveniently taken out together.

Description

Technical Field

[0001] The present utility model relates to the technical field of die-casting molds, and particularly to a metal die-casting mold with a waste removal function. Background Technique

[0002] Metal die-casting is an important manufacturing process, which is widely used in many fields such as automobiles, mechanical and electrical, household appliances, and medical equipment. This process obtains high-precision metal castings by quickly filling liquid or semi-solid metal into the die-casting mold cavity and solidifying under pressure.

[0003] During the metal die-casting process, the design and use of the mold are crucial. After traditional die-casting molds complete metal filling and solidification, subsequent manual or mechanical operations are usually required to remove the waste materials at the edges of the castings. These waste materials mainly include runners, slag pockets, and flash, etc., which are formed during the metal filling process. If not removed in time, they will affect the final quality of the castings and subsequent processing. In the existing production process, for waste materials such as runners on the castings, the usual method is to transfer the castings to a subsequent cutting machine for removal. This step is not only time-consuming and laborious, but also easily damages the product during the removal process, affecting the overall aesthetics and performance of the product. In addition, the removed castings also need to be transferred to a grinding machine for further grinding to remove the burrs and uneven parts generated during the cutting process. Such an operation process is not only inefficient, but also increases production costs and labor consumption. More critically, whether using a cutting machine or manual operation for runner removal, there are problems of inconvenient operation. Manual removal is even more time-consuming and laborious, and the removal effect is often difficult to guarantee, and obvious cutting marks are easily left on the product. Summary of the Invention

[0004] The purpose of the present invention is to provide a metal die-casting mold with a waste removal function. By adding a cutting device in the mold to cut the runner waste, however, the cutting device leaves a certain margin when cutting the runner waste and does not completely cut off the runner waste, which is convenient for subsequent removal of the product and the runner together.

[0005] To solve the problems of the existing technology, the present invention provides a metal die-casting mold with a waste removal function, which is installed on an injection machine and extrudes molten metal material into the mold to form a final product. The mold includes a top plate, a connecting plate, a cavity plate and a core plate. The cavity plate and the core plate can be separated or combined to form a final product from the metal material. A connecting plate is provided at the bottom of the top plate. The cavity plate is provided at the bottom of the connecting plate. The cavity plate and the connecting plate can be separated during mold opening. A runner body for allowing the molten metal material to flow between the connecting plate and the cavity plate is further provided at the center of the bottom of the connecting plate. A first support plate for protecting the runner body is fixed in the cavity plate. A cutting device for cutting the waste on the product is provided between the connecting plate and the cavity plate.

[0006] Preferably, the cutting device includes a first cutting assembly disposed between the cavity plate and the first support plate. The first cutting assembly includes a number of first cutting blades arranged uniformly around the central axis of the cavity plate. Each first cutting blade is rotatably connected to the cavity plate by a shaft. When each first cutting blade rotates synchronously and gradually contracts towards the center of the cavity plate, the first cutting blade can squeeze and cut the waste of the product.

[0007] Preferably, the first cutting assembly further includes a toothed ring rotatably disposed at the bottom of the first support plate. A ring track is provided on the toothed ring. A ring groove matching the ring track on the toothed ring is further opened at the bottom of the first support plate. The toothed ring is uniformly provided with limit grooves corresponding to each first cutting blade one by one. Each first cutting blade is provided with a first limit post, and the limit post is slidably matched with the limit groove.

[0008] Preferably, the limit groove is arc-shaped and contracts towards the center of the toothed ring. The first cutting assembly further includes a first driving mechanism capable of driving the toothed ring to rotate.

[0009] Preferably, the first driving mechanism includes a first rotary driving member fixed to the outside of the cavity plate. The output end of the first rotary driving member is connected with a first gear, and the first gear meshes with the toothed ring to drive the first cutting blade to move.

[0010] Preferably, the cutting device includes a second cutting assembly disposed between the cavity plate and the first support plate. The second cutting assembly includes a fixer rotatably disposed at the bottom of the first support plate. The bottom of the fixer is conical, and a number of through grooves are opened at the conical bottom of the fixer. When the conical bottom of the fixer contracts, it can clamp the waste on the product, and the fixer can rotate to twist the waste.

[0011] Preferably, the second cutting component includes a moving sleeve sleeved on a fixator, and a plurality of grooves are arranged along the length direction of the fixator. A convex block is also arranged in the moving sleeve, and the convex block cooperates with the grooves. The moving sleeve can move up and down along the length direction of the fixator, and the bottom of the moving sleeve is conical. When the moving sleeve ascends, the fixator can clamp the waste on the product. The second cutting component further includes a second gear rotatably arranged in a cavity plate, and a first telescopic driving part capable of driving the moving sleeve to move up and down is arranged on the second gear. The output end of the first telescopic driving part is connected to the moving sleeve. The second cutting component further includes a second driving mechanism for driving the second gear to rotate.

[0012] Preferably, the second driving mechanism includes a second rotary driving part installed outside the cavity plate. The output end of the second rotary driving part is connected to a third gear, and the third gear meshes with the second gear.

[0013] Preferably, the cutting device includes a third cutting component arranged between the cavity plate and the first support plate. The third cutting component includes a second telescopic driving part and a third telescopic driving part. The output end of the second telescopic driving part is connected to a first tool holder, and a second cutting tool is further connected to the first tool holder. The output end of the third telescopic driving part is connected to a second tool holder, and a third cutting tool is connected to one end of the second tool holder. A slot for the second tool holder to insert is arranged in the first tool holder, and a sliding groove is further formed in the cavity plate. The first tool holder and the second tool holder slide in the sliding groove.

[0014] Preferably, a core body is further arranged inside the core plate. A cooling water pipe for cooling the product is arranged between the core plate and the core body. Support seats are arranged on both sides of the bottom of the core plate, a bottom plate is arranged at the bottom of the support seats, and a pushing plate is arranged between the two support seats. A plurality of reset rods are distributed on the pushing plate, a reset spring is sleeved outside the reset rods, one end of the reset spring is connected to the core plate, and the other end of the reset spring is connected to the pushing plate. A plurality of pushing rods for pushing the product out are further distributed on the pushing plate, and the pushing rods extend into the core body.

[0015] The beneficial effects of the present invention compared with the prior art are: 1. The present invention realizes the function of pre - cutting the runner waste in the product during the mold production stage by designing the first cutting component. This design greatly simplifies the subsequent separation process of the runner waste from the product and improves production efficiency. Specifically, the first cutting component consists of key components such as a toothed ring, a first cutting tool, and a first rotary drive member. Limiting grooves are provided on the toothed ring, and these limiting grooves cooperate with the limiting posts on the first cutting tool to ensure that the first cutting tool can move towards the center of the toothed ring along a predetermined trajectory. When the first rotary drive member is started, the first rotary drive member drives the first gear to rotate. Since there is a gear transmission relationship between the first gear and the toothed ring, the toothed ring will rotate accordingly. As the toothed ring rotates, the limiting grooves guide the limiting posts, thereby driving the first cutting tool to move. During this process, the cutting edge of the first cutting tool cuts the runner waste on the product. It should be noted that a certain margin is left during cutting, which facilitates the removal of the product together with the runner waste from the mold and also enables the staff to easily break off the waste runner during the subsequent grinding process, thus improving the efficiency of waste removal.

[0016] 2. The present invention also provides another implementation manner, that is, the combination of a fixator and a movable sleeve is used to clamp and distort the runner waste. The bottom of the fixator is designed to be conical, and several grooves are provided on its surface to enhance the clamping effect. The bottom of the movable sleeve is also designed to be conical, and its inner diameter is slightly larger than the outer diameter of the fixator, so that the movable sleeve can move up and down along the axial direction of the fixator. When the movable sleeve moves upward, the movable sleeve tightly clamps the runner waste through the cooperation of the conical surfaces. Subsequently, the second rotary drive member is used to rotate the movable sleeve, thereby driving the fixator to rotate together. Since the runner waste is subjected to a tangential force during rotation and will undergo a torsional deformation, this deformation makes the connection between the runner waste and the product weaker, thus facilitating the subsequent staff to easily break off the runner waste during grinding.

[0017] 3. The present invention also proposes a more direct cutting method. This method realizes the cutting of the runner waste on the product through the coordinated action of a second telescopic drive member and a third telescopic drive member. Specifically, the second telescopic drive member is responsible for driving the first tool holder to move horizontally, and the third telescopic drive member is responsible for driving the second tool holder to move as well. As the first tool holder and the second tool holder move synchronously, the second cutting tool installed on the first tool holder and the third cutting tool installed on the second tool holder will gradually approach each other, thereby cutting the runner waste on the product. Similarly, a certain margin is left during cutting to ensure that the waste can be easily broken off during the subsequent grinding process. Description of the Drawings

[0018] Figure 1It is a three-dimensional structural schematic diagram of the first embodiment of a metal die-casting mold with a waste removal function according to the present invention.

[0019] Figure 2 It is a first exploded structural schematic diagram of the first embodiment of a metal die-casting mold with a waste removal function according to the present invention.

[0020] Figure 3 It is a second exploded structural schematic diagram of the first embodiment of a metal die-casting mold with a waste removal function according to the present invention.

[0021] Figure 4 It is a three-dimensional structural schematic diagram of the first cutting component of the first embodiment of a metal die-casting mold with a waste removal function according to the present invention.

[0022] Figure 5 It is an exploded structural schematic diagram of the second embodiment of a metal die-casting mold with a waste removal function according to the present invention.

[0023] Figure 6 It is a three-dimensional structural schematic diagram of the second cutting component of the second embodiment of a metal die-casting mold with a waste removal function according to the present invention.

[0024] Figure 7 It is a side view structural schematic diagram of the second cutting component of the second embodiment of a metal die-casting mold with a waste removal function according to the present invention.

[0025] Figure 8 It is a three-dimensional structural schematic diagram of the third embodiment of a metal die-casting mold with a waste removal function according to the present invention.

[0026] Figure 9 It is an exploded structural schematic diagram of the third embodiment of a metal die-casting mold with a waste removal function according to the present invention.

[0027] Figure 10 It is a three-dimensional structural schematic diagram of the third cutting component of the third embodiment of a metal die-casting mold with a waste removal function according to the present invention.

[0028] The reference numerals in the figure are: 1, top plate; 2, connecting plate; 21, runner body; 3, cavity plate; 31, chute; 4, first support plate; 5, slitting device; 51, first slitting assembly; 511, toothed ring; 5111, limiting groove; 512, first cutting knife; 5121, limiting post; 513, first rotation driving member; 514, first gear; 52, second slitting assembly; 521, fixer; 522, second gear; 5221, moving sleeve; 5222, first telescopic driving member; 523, second rotation driving member; 524, third gear; 53, third slitting assembly; 531, second telescopic driving member; 5311, first tool holder; 5312, second cutting knife; 532, third telescopic driving member; 5321, second tool holder; 5322, third cutting knife; 6, support base; 7, bottom plate; 8, ejector plate; 81, ejector rod; 9, reset rod; 91, reset spring; 10, core plate; 11, cooling water pipe; 12, core body. Detailed implementation mode

[0029] To further understand the features, technical means, and specific purposes and functions achieved by the present invention, the present invention will be described in further detail below in conjunction with the accompanying drawings and specific implementation modes.

[0030] Example 1, referring to Figures 1 - 4 As shown, the present invention provides a metal die-casting mold with a waste removal function, which is installed on an injection molding machine and extrudes molten metal materials into the mold to form a final product. It includes a top plate 1, a connecting plate 2, a cavity plate 3, and a core plate 10. The cavity plate 3 and the core plate 10 can be separated or combined to form a final product from the metal materials. A connecting plate 2 is provided at the bottom of the top plate 1, and the cavity plate 3 is provided at the bottom of the connecting plate 2. The cavity plate 3 and the connecting plate 2 can be separated during mold opening. A runner body 21 for allowing molten metal materials to flow into the space between the connecting plate 2 and the cavity plate 3 is also provided at the central position of the bottom of the connecting plate 2. A first support plate 4 for protecting the runner body 21 is fixed in the cavity plate 3. A slitting device 5 for cutting the waste on the product is provided between the connecting plate 2 and the cavity plate 3.

[0031] The top plate 1 is connected to the injection molding machine. The cavity plate 3 and the core plate 10 are in a combined state to form a mold cavity. The runner body 21 is ready to guide the molten metal materials into the mold cavity. The injection molding machine injects the molten metal materials into the mold cavity through the runner body 21. The metal materials are cooled and solidified in the mold cavity to form a final product. The cavity plate 3 and the connecting plate 2 are first separated. At this time, the slitting device 5 is activated to cut the runner waste on the product and leave a margin for the runner waste, so as to facilitate the subsequent removal of the product and the runner waste from the mold together. Subsequently, the cavity plate 3 and the core plate 10 are separated. The product is taken out of the mold, and the die-casting of the product is completed.

[0032] The slitting device 5 includes a first slitting assembly 51 disposed between the cavity plate 3 and the first support plate 4. The first slitting assembly 51 includes a number of first cutting blades 512 arranged uniformly around the central axis of the cavity plate 3, and each first cutting blade 512 is rotatably connected to the cavity plate 3 by a shaft. When each first cutting blade 512 rotates synchronously and gradually contracts towards the center of the cavity plate 3, the first cutting blade 512 can extrude and cut the waste material of the product.

[0033] After the product is formed, the cavity plate 3 and the connecting plate 2 are separated first to expose the waste material flow channel. At this time, the first slitting assembly 51 is activated, and each first cutting blade 512 starts to rotate synchronously. Since the first cutting blades 512 are arranged uniformly around the central axis of the cavity plate 3, and the first cutting blades 512 can gradually converge towards the center and extrude the waste material on the product. The waste material in the flow channel of the product is cut, and the waste material in the flow channel is not completely cut off.

[0034] The first slitting assembly 51 further includes a gear ring 511 rotatably disposed at the bottom of the first support plate 4. A ring track is provided on the gear ring 511, and a ring groove matching the ring track on the gear ring 511 is also opened at the bottom of the first support plate 4. Limiting grooves 5111 corresponding to each first cutting blade 512 are uniformly opened on the gear ring 511. A first limiting post 5121 is provided on each first cutting blade 512, and the limiting post 5121 is slidably engaged with the limiting groove 5111. The limiting groove 5111 is arc-shaped and the limiting groove 5111 contracts towards the center of the gear ring 511. The first slitting assembly 51 further includes a first driving mechanism capable of driving the gear ring 511 to rotate.

[0035] Before the product is formed, the first cutting blades 512 are in an open state and do not interfere with the forming process of the product. The gear ring 511 remains stationary under the control of the first driving mechanism. After the product is formed, the cavity plate 3 and the connecting plate 2 are separated first to expose the waste material flow channel. The first driving mechanism is ready to start and provides power for the rotation of the gear ring 511. The first driving mechanism drives the gear ring 511 to rotate. The rotation of the gear ring 511 drives the first cutting blades 512 to rotate synchronously through the sliding fit between the limiting groove 5111 and the first limiting post 5121. Since the limiting groove 5111 is arc-shaped and contracts towards the center of the gear ring 511, the first cutting blades 512 gradually approach the center during rotation, extruding and cutting the waste material on the product.

[0036] The first driving mechanism includes a first rotary driving member 513 fixed to the outside of the cavity plate 3, and a first gear 514 is connected to the output end of the first rotary driving member 513. The first gear 514 meshes with the gear ring 511 to drive the first cutting blades 512 to move.

[0037] The first cutting component 51 is composed of key components such as a toothed ring 511, a first cutting knife 512, and a first rotary driving part 513. Limiting grooves 5111 are formed on the toothed ring 511, and these limiting grooves 5111 cooperate with the limiting posts 5121 on the first cutting knife 512 to ensure that the first cutting knife 512 can move towards the center of the toothed ring 511 along a predetermined trajectory. When the first rotary driving part 513 is started, the first rotary driving part 513 drives the first gear 514 to rotate. Since there is a gear transmission relationship between the first gear 514 and the toothed ring 511, the toothed ring 511 will rotate accordingly. As the toothed ring 511 rotates, the limiting grooves 5111 guide the limiting posts 5121, thereby driving the first cutting knife 512 to move. During this process, the cutting edge of the first cutting knife 512 cuts the runner waste on the product. It should be noted that a certain margin is left during cutting. Such a design facilitates the removal of the product together with the runner waste from the mold and also facilitates the subsequent easy breaking off of the waste runner by the staff during the grinding process, thereby improving the efficiency of waste removal.

[0038] Embodiment 2, referring to Figures 5 - 7 As shown, the cutting device 5 includes a second cutting component 52 disposed between the cavity plate 3 and the first support plate 4. The second cutting component 52 includes a holder 521 rotatably disposed at the bottom of the first support plate 4. The bottom of the holder 521 is conical, and a plurality of through grooves are formed in the conical bottom of the holder 521. When the conical bottom of the holder 521 contracts, it can clamp the waste on the product, and the holder 521 can rotate to twist the waste.

[0039] Before the product is formed, the holder 521 is in an open state and does not interfere with the forming process of the product. After the product is formed, the cavity plate 3 and the connecting plate 2 are first separated to expose the waste runner. The holder 521 gradually contracts its conical bottom, and the holder 521 can tightly clamp the runner waste on the product during the contraction process. The runner waste will be subjected to a twisting force during the rotation of the holder 521, making the connection between the runner waste and the product become more fragile, thereby facilitating the subsequent easy breaking off of the runner waste by the staff during grinding.

[0040] The second slitting component 52 includes a moving sleeve 5221 sleeved on a holder 521. A plurality of grooves are arranged along the length direction of the holder 521. A convex block is also arranged in the moving sleeve 5221. The convex block cooperates with the groove, and the moving sleeve 5221 can move up and down along the length direction of the holder 521. The bottom of the moving sleeve 5221 is conical. When the moving sleeve 5221 rises, the holder 521 can clamp the waste on the product. The second slitting component 52 also includes a second gear 522 rotatably arranged in the cavity plate 3. A first telescopic driving member 5222 capable of driving the moving sleeve 5221 to move up and down is arranged on the second gear 522. The output end of the first telescopic driving member 5222 is connected to the moving sleeve 5221. The second slitting component 52 also includes a second driving mechanism for driving the second gear 522 to rotate. The second driving mechanism includes a second rotary driving member 523 installed outside the cavity plate 3. The output end of the second rotary driving member 523 is connected to a third gear 524. The third gear 524 meshes with the second gear 522.

[0041] When the waste needs to be cut off, the first telescopic driving member 5222 is started to drive the moving sleeve 5221 to rise along the length direction of the holder 521. Since the bottom of the moving sleeve 5221 is conical, the rising of the moving sleeve 5221 will cause the conical bottom of the holder 521 to contract, thereby clamping the runner waste on the product. Then, the second rotary driving member 523 drives the third gear 524 to rotate, and then drives the second gear 522 to rotate. Thus, the moving sleeve 5221 and the holder 521 rotate, and the runner waste will be subjected to a twisting force during the rotation of the holder 521.

[0042] When the moving sleeve 5221 moves upward, the moving sleeve 5221 will tightly clamp the runner waste through the cooperation of the conical surface. Subsequently, the moving sleeve 5221 is rotated by the second rotary driving member 523, and then drives the holder 521 to rotate together. Since the runner waste is subjected to a tangential force during the rotation, it will undergo a twisting deformation. This deformation makes the connection between the runner waste and the product become more fragile, so that it is convenient for the subsequent staff to break off the runner waste easily during polishing.

[0043] Embodiment 3, refer to Figures 8 - 10As shown in the figure, the slitting device 5 includes a third slitting assembly 53 disposed between the cavity plate 3 and the first support plate 4. The third slitting assembly 53 includes a second telescopic driving member 531 and a third telescopic driving member 532. The output end of the second telescopic driving member 531 is connected to a first tool holder 5311, and a second cutting tool 5312 is further connected to the first tool holder 5311. The output end of the third telescopic driving member 532 is connected to a second tool holder 5321, and a third cutting tool 5322 is connected to one end of the second tool holder 5321. A slot for inserting the second tool holder 5321 is further provided in the first tool holder 5311. A chute 31 is also formed in the cavity plate 3, and the first tool holder 5311 and the second tool holder 5321 slide in the chute 31.

[0044] The second telescopic driving member 531 is responsible for driving the first tool holder 5311 to move along the horizontal direction, while the third telescopic driving member 532 is responsible for driving the second tool holder 5321 to move in the same way. As the first tool holder 5311 and the second tool holder 5321 move synchronously, the second cutting tool 5312 mounted on the first tool holder 5311 and the third cutting tool 5322 mounted on the second tool holder 5321 will gradually approach, so as to cut the runner waste on the product. Similarly, a certain margin is left during cutting to ensure that the waste can be easily broken off during the subsequent grinding process.

[0045] A core body 12 is further provided inside the core plate 10. A cooling water pipe 11 for cooling the product is provided between the core plate 10 and the core body 12. Support seats 6 are provided on both sides of the bottom of the core plate 10. A bottom plate 7 is provided at the bottom of the support seats 6. A push plate 8 is further provided between the two support seats 6. A plurality of reset rods 9 are distributed on the push plate 8. A reset spring 91 is sleeved outside the reset rod 9. One end of the reset spring 91 is connected to the core plate 10, and the other end of the reset spring 91 is connected to the push plate 8. A plurality of push rods 81 for pushing the product out are also distributed on the push plate 8, and the push rods 81 extend into the core body 12.

[0046] The above embodiments only represent one or several implementation manners of the present invention, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A metal die-casting mold with a waste removal function, installed on an injection machine, which extrudes molten metal materials into the mold to form the final product, and is characterized in that: It includes a top plate (1), a connecting plate (2), a cavity plate (3) and a core plate (10). The cavity plate (3) and the core plate (10) can be separated or combined to form a final product from metal materials. A connecting plate (2) is arranged at the bottom of the top plate (1). The cavity plate (3) is arranged at the bottom of the connecting plate (2). The cavity plate (3) and the connecting plate (2) can be separated during mold opening. A runner body (21) for allowing molten metal material to flow into the space between the connecting plate (2) and the cavity plate (3) is also arranged at the central position of the bottom of the connecting plate (2). A first support plate (4) for protecting the runner body (21) is fixed in the cavity plate (3). A cutting device (5) capable of cutting waste on the product is arranged between the connecting plate (2) and the cavity plate (3).

2. The metal die-casting mold with a waste material cutting function according to claim 1, wherein: The cutting device (5) includes a first cutting component (51) arranged between the cavity plate (3) and the first support plate (4). The first cutting component (51) includes a number of first cutting blades (512) arranged uniformly around the central axis of the cavity plate (3). Each first cutting blade (512) is rotationally connected to the cavity plate (3) through a shaft. When each first cutting blade (512) rotates synchronously and gradually contracts towards the center of the cavity plate (3), the first cutting blade (512) can squeeze and cut the waste of the product.

3. The metal die-casting mold with a waste removal function according to claim 2, wherein: The first cutting component (51) further includes a toothed ring (511) rotatably arranged at the bottom of the first support plate (4). A ring track is arranged on the toothed ring (511). A ring groove matching the ring track on the toothed ring (511) is also opened at the bottom of the first support plate (4). Limiting grooves (5111) corresponding to each first cutting blade (512) are uniformly opened on the toothed ring (511). A first limiting post (5121) is arranged on each first cutting blade (512). The limiting post (5121) is in sliding fit with the limiting groove (5111).

4. A metal die-casting mold with a waste removal function according to claim 3, characterized in that: The limiting groove (5111) is arc-shaped and contracts towards the center of the toothed ring (511). The first cutting component (51) further includes a first driving mechanism capable of driving the toothed ring (511) to rotate.

5. A metal die-casting mold with a waste removal function according to claim 4, characterized in that: The first driving mechanism includes a first rotary driving part (513) fixed on the outside of the cavity plate (3). The output end of the first rotary driving part (513) is connected with a first gear (514). The first gear (514) meshes with the toothed ring (511) to drive the first cutting blade (512) to move.

6. The metal die-casting mold with a waste removal function according to claim 1, characterized in that: The cutting device (5) includes a second cutting component (52) arranged between the cavity plate (3) and the first support plate (4). The second cutting component (52) includes a fixture (521) rotatably arranged at the bottom of the first support plate (4). The bottom of the fixture (521) is conical. A number of through grooves are opened at the conical bottom of the fixture (521). When the conical bottom of the fixture (521) contracts, it can clamp the waste on the product, and the fixture (521) can rotate to twist the waste.

7. A metal die-casting mold with a waste removal function according to claim 6, characterized in that: The second slitting component (52) includes a moving sleeve (5221) sleeved on a holder (521), and a plurality of grooves are arranged along the length direction on the holder (521). A protrusion is also arranged in the moving sleeve (5221), and the protrusion cooperates with the grooves. The moving sleeve (5221) can move up and down along the length direction of the holder (521), and the bottom of the moving sleeve (5221) is conical. When the moving sleeve (5221) rises, the holder (521) can clamp the waste on the product. The second slitting component (52) further includes a second gear (522) rotatably arranged in the cavity plate (3), and a first telescopic driving member (5222) capable of driving the moving sleeve (5221) to move up and down is arranged on the second gear (522), and the output end of the first telescopic driving member (5222) is connected to the moving sleeve (5221). The second slitting component (52) further includes a second driving mechanism for driving the second gear (522) to rotate.

8. A metal die-casting mold with a waste removal function according to claim 7, characterized in that: The second driving mechanism includes a second rotary driving member (523) installed outside the cavity plate (3). The output end of the second rotary driving member (523) is connected to a third gear (524), and the third gear (524) meshes with the second gear (522).

9. A metal die-casting mold with a waste removal function according to claim 1, characterized in that: The slitting device (5) includes a third slitting component (53) arranged between the cavity plate (3) and the first support plate (4). The third slitting component (53) includes a second telescopic driving member (531) and a third telescopic driving member (532). The output end of the second telescopic driving member (531) is connected to a first tool holder (5311), and a second cutting tool (5312) is further connected to the first tool holder (5311). The output end of the third telescopic driving member (532) is connected to a second tool holder (5321), and a third cutting tool (5322) is connected to one end of the second tool holder (5321). A slot for the second tool holder (5321) to insert is arranged in the first tool holder (5311), and a sliding groove (31) is further opened on the cavity plate (3). The first tool holder (5311) and the second tool holder (5321) slide in the sliding groove (31).

10. A metal die-casting mold with a waste removal function according to claim 1, characterized in that: A core body (12) is further arranged inside the core plate (10). A cooling water pipe (11) for cooling the product is arranged between the core plate (10) and the core body (12). Support seats (6) are arranged on both sides of the bottom of the core plate (10). A bottom plate (7) is arranged at the bottom of the support seats (6). A push plate (8) is arranged between the two support seats (6). A plurality of reset rods (9) are distributed on the push plate (8). A reset spring (91) is sleeved outside the reset rod (9). One end of the reset spring (91) is connected to the core plate (10), and the other end of the reset spring (91) is connected to the push plate (8). A plurality of push rods (81) for pushing the product out are further distributed on the push plate (8), and the push rods (81) extend into the core body (12).

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