Metal die-casting die with material taking mechanism

Abstract

The invention relates to the technical field of die-casting dies, in particular to a metal die-casting die with a material taking mechanism, which comprises a fixed die, a movable die, an ejection mechanism and a guide mechanism, the ejection mechanism and the guide mechanism are arranged on the movable mold; the ejection mechanism comprises an ejection plate and a linear driver, the ejection plate is arranged in a cavity of the movable mold, the linear driver is mounted on the movable mold, and the driving end of the linear driver is in transmission connection with the ejection plate; the guide mechanism comprises two guide plates movably arranged on the movable mold, and the two guide plates are located on the two sides of the cavity correspondingly. According to the die-casting die, the function of guiding the casting to fall off when the casting is ejected out is achieved, the situation that the casting collides with other objects or is clamped in the falling process is avoided, and the problem that the casting cannot fall off accurately in the taking process of a traditional die-casting die is solved. Casting ejection is conducted through the ejection plate, ejection work can be conducted on castings such as thin-wall shells or deep-cavity parts with the high surface smoothness requirement, local stress is reduced through large-area contact, and the casting quality is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of die-casting molds, and in particular to a metal die-casting mold with a material taking mechanism. Background Art

[0002] Die casting molds are core tools used in high-pressure casting processes. They inject molten metal into precision cavities to form complex metal parts with high efficiency and precision. The temperature of metal castings is high after molding. During the material removal process, workers may get burned if they accidentally touch the parts, which is a safety hazard.

[0003] To this end, a Chinese patent with authorization announcement number CN222536302U discloses a metal die-casting mold that is easy to pick up materials. The motor, bracket, rotating shaft, die-casting plate, rack, gear and spring components inside the material picking device cooperate with each other. When the motor is started, the rotating shaft rotates to move the gear rack, bringing out the die-casting mold on the die-casting plate, and the mold is bounced onto the conveyor belt through the slide groove by the spring, thereby achieving the effect of picking up materials.

[0004] Existing die-casting molds usually use mechanical structures to push castings to the specified position when automatically taking materials. However, some castings with more complex structures may be affected by thrust. Since the center of gravity deviates from the pushing point, the moving trajectory of the casting may deviate and fail to move smoothly to the specified position. In addition, the casting may collide with the frame or other structures during movement, which may cause damage to the casting and affect the quality of the casting. Summary of the invention

[0005] In view of the above problems, a metal die-casting mold with a material taking mechanism is provided, which solves the problem that the casting cannot be accurately dropped due to uneven force during the material taking process of the traditional die-casting mold through the cooperation of the ejection mechanism and the guide mechanism.

[0006] In order to solve the problems of the prior art, the present invention provides a metal die-casting mold with a material taking mechanism, comprising a fixed mold, a movable mold, an ejection mechanism and a guiding mechanism; the ejection mechanism and the guiding mechanism are both arranged on the movable mold; the ejection mechanism comprises a top plate and a linear driver, the top plate is arranged in a cavity of the movable mold, the linear driver is installed on the movable mold, and the driving end of the linear driver is transmission-connected with the top plate; the guiding mechanism comprises two guide plates movably arranged on the movable mold, and the two guide plates are respectively located on both sides of the cavity.

[0007] Preferably, an auxiliary control mechanism is further provided on the movable mold, and the auxiliary control mechanism includes a locking component for limiting the movement of the top plate and a control component for releasing the movement restriction of the top plate by the locking component.

[0008] Preferably, the guide plate is transmission-connected to the top plate.

[0009] Preferably, a folding plate is connected to the guiding plate; a first elastic member is provided on the moving die, and two ends of the first elastic member are respectively connected to the moving die and the folding plate; when the die-casting mold is in the mold-opening state, the guiding plate is in the extended state under the elastic force of the first elastic member; when the die-casting mold is in the mold-closing state, the guiding plate is in the contracted state under the extrusion between the fixed die and the moving die.

[0010] Preferably, the guiding plate is in driving connection with the control assembly; when the guiding plate is in the extended state, the control assembly releases the movement restriction of the locking assembly on the top plate.

[0011] Preferably, the locking assembly includes a first boss and a mounting seat; the first boss is provided on the top plate; the mounting seat is provided on the moving die, a clamping block and a second elastic member are provided on the mounting seat, and a clamping groove cooperating with the clamping block is formed on the first boss; the clamping block is movably arranged on the mounting seat, and two ends of the second elastic member are respectively connected to the clamping block and the mounting seat; when the clamping block is inserted and cooperated with the clamping groove, the movement of the top plate is restricted.

[0012] Preferably, the control assembly includes a push plate, and the push plate is connected to the folding plate; an inclined guiding groove slidably cooperating with the push plate is formed on the clamping block.

[0013] Preferably, a receiving groove for cooperating with the guiding plate is formed on the fixed die.

[0014] Preferably, a second boss is provided on the moving die, the folding plate and the first elastic member are both arranged on the second boss, and two ends of the first elastic member are respectively connected to the second boss and the folding plate.

[0015] Preferably, a sealing ring is provided on the moving die, and a sealing groove for cooperating with the sealing ring is formed on the fixed die.

[0016] The beneficial effects of the present invention compared with the prior art are as follows: 1. The present invention realizes the function of guiding the casting to fall during the ejection of the casting through the cooperation of the ejection mechanism and the guiding mechanism, achieving the effect of enabling the casting to stably fall to the designated position, avoiding the situation that the casting collides with other objects or gets stuck during the falling process, thereby improving the material taking stability of the die-casting mold and solving the problem that the casting cannot accurately fall due to uneven force during the material taking process of the traditional die-casting mold. By ejecting the casting through the top plate, the ejection work can be carried out on castings with high surface finish requirements such as thin-walled shells or deep cavity parts, reducing local stress through large-area contact and ensuring the quality of the casting.

[0017] 2. The present invention realizes the function of restricting the movement of the top plate through the locking component and the control component, avoiding the influence of the movement of the top plate on the machining quality of the casting during the machining process. At the same time, the control component is used to control the locking component to achieve the effect of controlling the telescopic movement of the top plate under specified conditions. In the mold closing state, when the casting is die-cast, the top plate is in the contracted and reset state. At this time, the locking component restricts the extension of the top plate, thereby avoiding the movement of the top plate from affecting the cavity state and maintaining the die-casting quality of the casting. After the die-casting process is completed, the control component releases the movement restriction of the locking component on the top plate. Then, the top plate is driven to extend by the linear actuator to perform the ejection operation. Under the thrust and gravity of the top plate, the casting falls off to the specified position to complete the material taking action. Then, the die-casting mold is controlled to close, and the top plate is controlled to contract and reset by the linear actuator. Then, the locking component restricts the movement of the top plate again.

[0018] 3. The present invention realizes the function of automatically releasing the movement restriction of the locking component on the top plate through the transmission connection between the guide plate and the control component. When the die-casting mold is in the mold opening state, the guide plate is in the extended state under the elastic force of the first elastic member. During the extension process of the guide plate, the torque transmitted by the guide plate is used to drive the control component, and the control component releases the movement restriction of the locking component on the top plate. When the die-casting mold is in the mold closing state, the guide plate is in the contracted state under the extrusion between the fixed mold and the moving mold. Then, the top plate is controlled to reset by the linear actuator. When the top plate is reset, the locking component restricts the movement of the top plate again for stable machining. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional schematic diagram of a metal die-casting mold with a material taking mechanism of the present invention in the mold closing state.

[0020] Figure 2 is a three-dimensional schematic diagram of a metal die-casting mold with a material taking mechanism of the present invention in the mold opening state.

[0021] Figure 3 is a three-dimensional schematic diagram of the moving mold, the ejection mechanism and the guiding mechanism in a metal die-casting mold with a material taking mechanism of the present invention.

[0022] Figure 4 is a three-dimensional schematic diagram of the guiding mechanism and the auxiliary control mechanism in a metal die-casting mold with a material taking mechanism of the present invention.

[0023] Figure 5 is a three-dimensional schematic diagram of the cooperation between the auxiliary control mechanism and the top plate in a metal die-casting mold with a material taking mechanism of the present invention.

[0024] Figure 6It is a three-dimensional schematic diagram of the guiding plate and the locking assembly in a metal die-casting mold with a material taking mechanism of the present invention when restricting the movement of the guiding plate.

[0025] Figure 7 It is a three-dimensional schematic diagram of the guiding plate and the locking assembly in a metal die-casting mold with a material taking mechanism of the present invention when releasing the restriction.

[0026] Figure 8 It is a three-dimensional schematic diagram of the locking assembly in a metal die-casting mold with a material taking mechanism of the present invention.

[0027] Figure 9 It is a three-dimensional schematic diagram of a metal die-casting mold with a material taking mechanism of the present invention during the mold opening process.

[0028] Figure 10 is of the present invention Figure 9 Partial enlarged schematic diagram at position A in

[0029] The reference numerals in the figure are: 1, fixed mold; 11, receiving groove; 2, moving mold; 21, second boss; 22, sealing ring; 3, ejecting mechanism; 31, top plate; 32, linear driver; 4, guiding mechanism; 41, guiding plate; 411, folding plate; 42, first elastic member; 5, auxiliary control mechanism; 51, locking assembly; 511, first boss; 5111, clamping groove; 512, mounting seat; 5121, clamping block; 5122, second elastic member; 52, control assembly; 521, push plate; 522, inclined guide groove. Detailed implementation manners

[0030] To further understand the features, technical means, and the specific purposes and functions achieved by the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners.

[0031] Refer to Figures 1 - 3 : A metal die-casting mold with a material taking mechanism, including a fixed mold 1, a moving mold 2, an ejecting mechanism 3, and a guiding mechanism 4; the ejecting mechanism 3 and the guiding mechanism 4 are both arranged on the moving mold 2; the ejecting mechanism 3 includes a top plate 31 and a linear driver 32, the top plate 31 is arranged in the cavity of the moving mold 2, the linear driver 32 is installed on the moving mold 2, and the driving end of the linear driver 32 is in transmission connection with the top plate 31; the guiding mechanism 4 includes two guiding plates 41 movably arranged on the moving mold 2, and the two guiding plates 41 are respectively located on both sides of the cavity.

[0032] The present invention realizes the function of guiding the casting to fall during the ejection of the casting through the cooperation of the ejection mechanism 3 and the guiding mechanism 4, achieving the effect of stably dropping the casting to the designated position, avoiding the situation that the casting collides with other objects or gets stuck during the blanking process, thereby improving the material taking stability of the die-casting mold and solving the problem that the casting cannot accurately blank due to uneven force during the material taking process of the traditional die-casting mold. The fixed mold 1 and the moving mold 2 are arranged on a die-casting machine, which is not shown in the figure. The fixed mold 1 is connected with a guide rod, and the guide rod is slidably matched with the moving mold 2. The die-casting machine includes a controller for human-machine interaction. The linear driver 32 is preferably a linear cylinder, and the linear driver 32 is electrically connected to the controller. The casting is ejected through the top plate 31, and the ejection work can be carried out on castings with high surface finish requirements such as thin-walled shells or deep cavity parts. By contacting with a large area, local stress is reduced to ensure the quality of the casting.

[0033] In the die-casting mold, after the mold is opened, the casting will wrap around the core due to shrinkage and remain on the moving mold 2. In the working state, after die-casting is completed, the mold opening action is carried out, and the casting moves with the moving mold 2 and separates from the fixed mold 1. Then, the controller sends a signal to the linear driver 32. After receiving the signal, the linear driver 32 drives the top plate 31 to move towards the fixed mold 1. As the top plate 31 extends, the casting is pushed by the top plate 31 to move away from the moving mold 2. The casting is separated from the cavity on the moving mold 2, and the casting is directionally demolded to the preset station under the cooperation of the ejection reaction force and gravity. During this process, the movement of the casting is restricted and guided by the guide plates 41 distributed on both sides of the cavity on the moving mold 2. The guide plates 41 symmetrically distributed on both sides of the cavity of the moving mold 2 restrict the demolding trajectory of the casting through the limit guiding structure, which not only avoids mechanical interference or sticking between the casting and the guide rod during the ejection process, but also reduces the demolding resistance through the anti-adhesion coating or micro-texture design on the surface of the guide plate. Its guiding accuracy can be corrected in real time in cooperation with the displacement sensor to ensure the efficient and non-destructive demolding of thin-walled complex parts such as aluminum alloy and magnesium alloy, and significantly improve the yield and automation stability of die-casting production.

[0034] Refer to Figure 1 and Figure 4 : An auxiliary control mechanism 5 is further provided on the moving mold 2. The auxiliary control mechanism 5 includes a locking component 51 for restricting the movement of the top plate 31 and a control component 52 for releasing the movement restriction of the locking component 51 on the top plate 31.

[0035] The present invention realizes the function of restricting the movement of the top plate 31 through the locking component 51 and the control component 52, avoiding the influence of the movement of the top plate 31 on the machining quality of the casting during the machining process. At the same time, the control component 52 is used to control the locking component 51 to achieve the effect of controlling the telescopic movement of the top plate 31 under specified conditions. In the mold-closed state, when die-casting the casting, the top plate 31 is in the contracted and reset state. At this time, the locking component 51 restricts the top plate 31 from extending, thereby avoiding the movement of the top plate 31 from affecting the cavity state. When closing the mold, the locking component 51 fixes the top plate 31 to prevent it from moving during the high-pressure filling process, avoiding the deformation of the cavity caused by the vibration or displacement of the top plate 31, ensuring the closing accuracy of the mold, and thus maintaining the die-casting quality of the casting. After the die-casting process is completed, the moving mold 2 is controlled to separate from the fixed mold 1. At this time, the die-casting mold is in the mold-opening state, and the control component 52 releases the movement restriction of the locking component 51 on the top plate 31. Then, the top plate 31 is driven to extend by the linear actuator 32 to perform the ejecting operation. The casting falls off to the specified position under the thrust and gravity of the top plate 31, completing the material-taking action. Then, the die-casting mold is controlled to close, and the top plate 31 is controlled to contract and reset by the linear actuator 32. Then, the locking component 51 restricts the movement of the top plate 31 to complete all the reset actions, realizing continuous operation without human intervention and forming a stable production cycle.

[0036] Refer to Figures 1 - 3 : The guide plate 41 is in transmission connection with the top plate 31.

[0037] As the first embodiment of the present invention, the synchronous telescopic function of the guide plate 41 and the top plate 31 is realized by connecting the guide plate 41 and the top plate 31 in transmission. The surface of the top plate 31 close to the cavity is provided with a micro-arc gradual change structure and a wear-resistant graphite layer. In the working state, when the linear actuator 32 drives the top plate 31 to extend, the top plate 31 drives the guide plate 41 to extend. When the casting contacts the surface of the guide plate 41, the demolding trajectory of the casting is accurately restricted through the micro-arc gradual change structure, and the friction coefficient is reduced through the wear-resistant graphite layer on the surface of the guide plate 41, avoiding the problem of severe wear of the casting during the demolding process. During the ejection process of the casting, the guide plate 41 guides the casting. After the material-taking is completed, the top plate 31 is driven to reset by the linear actuator 32, and the top plate 31 drives the guide plate 41 to contract. When the top plate 31 completes the reset, the guide plate 41 completely contracts into the moving mold 2. This not only avoids the collision between the guide plate 41 and the fixed mold 1 but also can guide and restrict the casting through the guide plate 41 during the material-taking process. In the ejection stage, the guide plate 41 and the top plate 31 extend synchronously, and the top plate 31 pushes the casting to move synchronously. Through the physical guiding track formed by the guide plate 41, the casting is effectively prevented from deflecting or colliding violently when separating from the cavity.

[0038] Refer to Figures 4 - 6:A folding plate 411 is connected to the guiding plate 41; a first elastic member 42 is provided on the moving die 2, and both ends of the first elastic member 42 are respectively connected to the moving die 2 and the folding plate 411; when the die-casting mold is in the mold-opening state, the guiding plate 41 is in the extended state under the elastic force of the first elastic member 42; when the die-casting mold is in the mold-closing state, the guiding plate 41 is in the contracted state under the extrusion between the fixed die 1 and the moving die 2.

[0039] As the second embodiment of the present invention, the function of automatically controlling the extension of the guiding plate 41 during mold opening is realized through the folding plate 411 and the first elastic member 42. The arrangement of the folding plate 411 can limit the telescopic range of the guiding plate 41 to prevent the guiding plate 41 from detaching from the moving die 2. At the same time, through the arrangement of the first elastic member 42, the elastic potential energy stored in the first elastic member 42 can be used to push the guiding plate 41 to extend during mold opening. During mold closing, the moving die 2 and the fixed die 1 gradually approach, and the guiding plate 41 is controlled to contract into the moving die 2 under the extrusion between the fixed die 1 and the moving die 2. The first elastic member 42 contracts under the pressure during the contraction process, and the elastic force generated by the first elastic member 42 also gradually increases. During this process, the elastic force provided by the first elastic member 42 can play a certain buffering role, thereby avoiding too violent collision between the moving die 2 and the fixed die 1 during mold closing and playing a certain protective role for the die-casting mold. When die casting is completed, the moving die 2 is controlled to separate from the fixed die 1. As the distance between the fixed die 1 and the moving die 2 increases, the folding plate 411 moves under the elastic force of the first elastic member 42, and the folding plate 411 drives the guiding plate 41 to move. Thus, the effect of automatically controlling the extension of the guiding plate 41 during mold parting is achieved, and then the extended guiding plate 41 guides and positions the casting during the demolding process of the casting.

[0040] Refer to Figures 4 - 7 :The guiding plate 41 is in transmission connection with the control assembly 52; when the guiding plate 41 is in the extended state, the control assembly 52 releases the movement restriction of the locking assembly 51 on the top plate 31.

[0041] The present invention realizes the function of automatically releasing the movement restriction of the locking component 51 on the top plate 31 through the transmission connection between the guide plate 41 and the control component 52. When the die-casting mold is in the mold-opening state, the guide plate 41 is in the extended state under the elastic force of the first elastic member 42. At this time, there is no need to restrict the movement of the top plate 31. Therefore, the guide plate 41 is in transmission connection with the control component 52. During the extension process of the guide plate 41, the torque transmitted by the guide plate 41 is used to drive the control component 52, and the control component 52 releases the movement restriction of the locking component 51 on the top plate 31. Then, the controller sends a signal to the linear actuator 32, and the linear actuator 32 drives the top plate 31 to extend to perform the material-taking action. When the die-casting mold is in the mold-closing state, the guide plate 41 is in the contracted state under the extrusion between the fixed mold 1 and the moving mold 2. At this time, the guide plate 41 does not apply a torque to the control component 52, and thus does not affect the locking component 51. At this time, the controller sends a signal to the linear actuator 32. After receiving the signal, the linear actuator 32 drives the top plate 31 to reset. When the top plate 31 is completely reset, the locking component 51 restricts the movement of the top plate 31 again, completing the automated operation of the material-taking work.

[0042] Refer to Figure 4 , Figure 5 , Figure 7 and Figure 8 : The locking component 51 includes a first boss 511 and a mounting seat 512; the first boss 511 is arranged on the top plate 31; the mounting seat 512 is arranged on the moving mold 2, and a clamping block 5121 and a second elastic member 5122 are arranged on the mounting seat 512. A clamping groove 5111 matching with the clamping block 5121 is formed on the first boss 511; the clamping block 5121 is movably arranged on the mounting seat 512, and two ends of the second elastic member 5122 are respectively connected with the clamping block 5121 and the mounting seat 512; when the clamping block 5121 is inserted and matched with the clamping groove 5111, the movement of the top plate 31 is restricted.

[0043] The present invention realizes the function of restricting the movement of the top plate 31 through the first boss 511 and the mounting seat 512. When the top plate 31 contracts and resets under the drive of the linear actuator 32, the locking block 5121 aligns with the card slot 5111, and then the locking block 5121 extends under the elastic force of the second elastic member 5122, so that the locking block 5121 is inserted and matched with the card slot 5111. The movement of the first boss 511 and the top plate 31 is restricted by the cooperation of the locking block 5121 and the card slot 5111. When the die-casting mold is in the mold-opening state, the guiding plate 41 extends under the elastic force of the first elastic member 42. During this process, the guiding plate 41 transmits torque to the control assembly 52, and the control assembly 52 controls the locking block 5121 to move away from the card slot 5111 until the locking block 5121 is separated from the card slot 5111. At this time, the locking block no longer restricts the movement of the first boss 511, and the movement restriction of the locking assembly 51 on the top plate 31 is released. Then, the linear actuator 32 drives the top plate 31 to extend, and the top plate 31 drives the first boss 511 to move. The casting is pushed by the thrust applied by the top plate 31 to be separated from the cavity, and an automatic material-taking action is performed.

[0044] Refer to Figure 4 、 Figure 6 and Figure 7 : The control assembly 52 includes a push plate 521, and the push plate 521 is connected to the folding plate 411; an inclined guide groove 522 that is slidably matched with the push plate 521 is formed on the locking block 5121.

[0045] The present invention realizes the function of controlling the separation of the locking block 5121 from the card slot 5111 when the guiding plate 41 extends through the push plate 521 and the inclined guide groove 522. During the mold-opening process, as the fixed mold 1 and the moving mold 2 move away from each other, the guiding plate 41 gradually extends under the elastic force of the first elastic member 42. During this process, the folding plate 411 on the guiding plate 41 drives the push plate 521 to move. When the push plate 521 contacts the inclined guide groove 522 on the locking block 5121, the push plate 521 squeezes the locking block 5121, and then pushes the locking block 5121 to move away from the card slot 5111. When the locking block 5121 is separated from the card slot 5111, the movement restriction of the locking assembly 51 on the top plate 31 is released. At this time, by driving the top plate 31 to extend through the linear actuator 32, automatic material-taking work can be performed. Through the push plate 521 connected to the folding plate 411, the state of the locking assembly 51 is automatically controlled when the folding plate 411 and the guiding plate 41 move, further realizing the automation of the material-taking work, reducing the manual intervention situation, greatly improving the processing efficiency, and ensuring the processing quality and processing stability at the same time.

[0046] Refer to Figure 9 and Figure 10 : The fixed mold 1 is provided with a receiving groove 11 for cooperating with the guiding plate 41.

[0047] The present invention realizes the function of stably guiding the position of the guiding plate 41 through the receiving groove 11. Precise positioning and sealing are achieved in the mold-closed state, effectively preventing the leakage of molten metal during the injection process and ensuring the injection quality. At the same time, during the mold-closing action, wear-resistant graphite pads are embedded in the dynamic contact area between the inner wall of the guiding groove and the guiding plate 41. Utilizing the high-temperature stability, self-lubrication, and anti-wear characteristics of the graphite material, the wear of parts is significantly reduced, and the service life of the mold is extended. Through the extrusion cooperation of the moving mold 2 and the fixed mold 1, the guiding plate 41 is smoothly pushed into the cavity of the moving mold 2 during the mold-closing stage. The continuous protection of the graphite pad in the guiding groove can adapt to high-frequency die-casting working conditions, taking into account the optimization of sealing reliability and durability. At the same time, through the cooperation of the guiding plate 41 and the receiving groove 11, during injection in the mold-closed state, the situation where leakage occurs at the guiding plate 41 and affects the injection quality can be avoided. During the mold-closing process, the guiding plate 41 and the receiving groove 11 are inserted and matched, and then the guiding plate 41 is pushed into the moving mold 2 through the extrusion action between the moving mold 2 and the fixed mold 1. During this process, pressure is applied to the guiding plate 41 through the inner wall of the guiding groove, and wear-resistant graphite pads are arranged in the guiding groove to slow down the wear of parts and improve the working life of the die-casting mold.

[0048] Refer to Figure 4 and Figure 5 : A second boss 21 is provided on the moving mold 2, and the folding plate 411 and the first elastic member 42 are both arranged on the second boss 21. Two ends of the first elastic member 42 are respectively connected to the second boss 21 and the folding plate 411.

[0049] The present invention realizes the function of extending the telescopic stroke of the guiding plate 41 through the second boss 21. In order to enable the guiding plate 41 to perform stable telescoping with a large stroke, a second boss 21 for accommodating the folding plate 411 and the guiding plate 41 is provided on the moving mold 2. When the guiding plate 41 is in the contracted and reset state, the guiding plate 41 and the folding plate 411 contract into the second boss 21, and the first elastic member 42 is arranged on the second boss 21, enabling the first elastic member 42 to contract with a large stroke, thereby maintaining the elastic force supply to the folding plate 411.

[0050] Refer to Figure 3 and Figure 9 : A sealing ring 22 is provided on the moving mold 2, and a sealing groove for cooperating with the sealing ring 22 is formed on the fixed mold 1.

[0051] The present invention realizes the function of improving the sealing performance of the die-casting mold when the die-casting mold is in the closed mold state through the sealing ring 22. The sealing ring 22 is preferably a rectangular sealing strip made of high-temperature resistant materials such as fluororubber and silica gel. When performing metal die-casting processing, in order to improve the die-casting quality, high-vacuum die-casting is usually adopted. In the high-pressure or high-vacuum die-casting process, the mating surface between the moving die 2 and the fixed die 1 is the main path for gas leakage. Therefore, a sealing ring 22 is provided on the moving die 2. When the die-casting mold is in the closed mold state, the sealing performance of the mating surface between the moving die 2 and the fixed die 1 is improved through the sealing ring 22. This avoids the defects such as porosity and shrinkage porosity in the casting caused by the entry of external air into the cavity. At the same time, the sealing ring 22 can reduce the flash or overflow material generated due to the gap of the parting surface during the filling process of the molten metal, and reduce the post-treatment cost.

[0052] The above embodiments only represent one or several implementation manners of the present invention, and the description 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 material taking mechanism, characterized in that, It includes a fixed mold (1), a movable mold (2), an ejection mechanism (3) and a guiding mechanism (4); Both the ejection mechanism (3) and the guiding mechanism (4) are arranged on the movable mold (2); The ejection mechanism (3) includes a top plate (31) and a linear driver (32). The top plate (31) is arranged in the cavity of the movable mold (2), the linear driver (32) is installed on the movable mold (2), and the driving end of the linear driver (32) is in transmission connection with the top plate (31); The guiding mechanism (4) includes two guiding plates (41) movably arranged on the movable mold (2), and the two guiding plates (41) are respectively located on both sides of the cavity.

2. The metal die-casting mold with a material taking mechanism according to claim 1, characterized in that, An auxiliary control mechanism (5) is also arranged on the movable mold (2). The auxiliary control mechanism (5) includes a locking component (51) for restricting the movement of the top plate (31) and a control component (52) for releasing the movement restriction of the locking component (51) on the top plate (31).

3. A metal die-casting mold with a material taking mechanism according to claim 1, characterized in that The guiding plate (41) is in transmission connection with the top plate (31).

4. A metal die-casting mold with a material taking mechanism according to claim 2, characterized in that, A folding plate (411) is connected to the guiding plate (41); A first elastic member (42) is arranged on the movable mold (2), and both ends of the first elastic member (42) are respectively connected to the movable mold (2) and the folding plate (411); When the die-casting mold is in the mold-opening state, the guiding plate (41) is in the extended state under the elastic force of the first elastic member (42); When the die-casting mold is in the mold-closing state, the guiding plate (41) is in the contracted state under the extrusion between the fixed mold (1) and the movable mold (2).

5. A metal die-casting mold with a material taking mechanism according to claim 4, characterized in that, The guiding plate (41) is in transmission connection with the control component (52); When the guiding plate (41) is in the extended state, the control component (52) releases the movement restriction of the locking component (51) on the top plate (31).

6. A metal die-casting mold with a material taking mechanism according to claim 5, characterized in that, The locking component (51) includes a first boss (511) and a mounting seat (512); The first boss (511) is arranged on the top plate (31); The mounting seat (512) is arranged on the movable mold (2). A clamping block (5121) and a second elastic member (5122) are arranged on the mounting seat (512). A clamping groove (5111) matching with the clamping block (5121) is formed on the first boss (511); The clamping block (5121) is movably arranged on the mounting seat (512), and both ends of the second elastic member (5122) are respectively connected to the clamping block (5121) and the mounting seat (512); When the clamping block (5121) is in plug-in fit with the clamping groove (5111), the movement of the top plate (31) is restricted.

7. The metal die-casting mold with a material taking mechanism according to claim 6, characterized in that, The control component (52) includes a push plate (521), and the push plate (521) is connected to the folding plate (411); An inclined guiding groove (522) slidably matched with the push plate (521) is formed on the clamping block (5121).

8. A metal die-casting mold with a material taking mechanism according to claim 1, characterized in that, A receiving groove (11) for cooperating with the guiding plate (41) is formed on the fixed mold (1).

9. A metal die-casting mold with a material taking mechanism according to claim 4, characterized in that, A second boss (21) is arranged on the movable mold (2). The folding plate (411) and the first elastic member (42) are both arranged on the second boss (21), and both ends of the first elastic member (42) are respectively connected to the second boss (21) and the folding plate (411).

10. A metal die-casting mold with a material taking mechanism according to claim 1, characterized in that, A sealing ring (22) is arranged on the movable mold (2), and a sealing groove for cooperating with the sealing ring (22) is formed on the fixed mold (1).

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