Die-casting die with deslagging and exhausting functions

Abstract

The utility model provides a die-casting die with deslagging and exhausting functions. The die-casting die at least comprises a fixed die mechanism, a movable die mechanism and a deslagging and exhausting mechanism, the fixed mold mechanism comprises a fixed mold frame and a fixed mold core, the movable mold mechanism comprises a movable mold frame and a movable mold core, and the deslagging and exhausting mechanism comprises a deslagging assembly, a first slag cavity, a second slag cavity, a third slag cavity and an exhausting assembly; molten metal liquid enters the die, flows into the cavity to form a die casting, flows into the first slag cavity to form a first slag part, flows into the second slag cavity to form a second slag part, and flows into the third slag cavity to form a third slag part; the fixed mold frame comprises a fixed mold frame bottom plate and a fixed mold frame main plate which can be used for mold closing or mold opening; and after the fixed mold frame bottom plate and the fixed mold frame main plate are subjected to mold opening, the slag discharging assembly is matched with the second slag material part, and then the second slag material part falls off from the fixed mold mechanism. The automatic deslagging and blanking device can realize automatic deslagging and blanking, reduces follow-up manual deslagging, and is high in die-casting quality.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a die-casting mold with slag and gas discharge functions. Background Art

[0002] Die casting is a metal casting process, which is characterized by using high pressure to fill the mold cavity with metal raw materials at high speed and solidify under the action of high pressure.

[0003] The die-casting process is a metal casting process achieved with the help of a die-casting mold with slag and exhaust functions. Specifically, it is a process of injecting molten metal or alloy into a mold for cooling and solidification. The die-casting process can produce high-precision, high-strength, and high-wear-resistant parts, so it is widely used in automobiles, motorcycles, electronics, home appliances and other fields.

[0004] Existing die-casting molds with slag removal and exhaust functions are generally only suitable for die-castings with smaller dimensions in the height direction (or shallower cavities). The die-casting quality cannot be guaranteed for some die-castings with larger dimensions in the height direction (or deeper cavities). Since these products require the molds to have higher airtightness, existing molds can only increase the number of good products by increasing output, which is costly and has a high defective rate of die-casting products. Utility Model Content

[0005] In view of the shortcomings of the prior art mentioned above, the purpose of the present utility model is to provide a die-casting mold with slag removal and exhaust function that can greatly improve the internal density of the die-cast product, thereby improving the strength and airtightness of the product, and is used to solve the quality problem of die-casting molding of products with extremely strict airtightness requirements that cannot be guaranteed in the prior art.

[0006] In order to achieve the above-mentioned purpose and other related purposes, the utility model provides a die-casting mold with slag and exhaust functions, which at least includes:

[0007] The fixed mold mechanism comprises a fixed mold frame and a fixed mold core, wherein the fixed mold core is installed on the fixed mold frame and a fixed mold cavity is formed in the fixed mold core;

[0008] The movable mold mechanism comprises a movable mold frame and a movable mold core. The movable mold core is installed on the movable mold frame. A convex mold matching with the fixed mold cavity is arranged on the movable mold core. When the fixed mold mechanism and the movable mold mechanism are molded together, the movable mold core and the fixed mold core are enclosed to form a cavity.

[0009] A slag discharge and exhaust mechanism, comprising a slag discharge assembly, a first slag cavity and a second slag cavity respectively connected to two ends of the cavity in the depth direction, a third slag cavity connected to the first slag cavity, and an exhaust assembly connected to the third slag cavity, wherein the second slag cavity is arranged on the fixed mold mechanism;

[0010] The molten metal enters the mold, flows into the mold cavity to form a die casting, flows into the first slag cavity to form a first slag part, flows into the second slag cavity to form a second slag part, and flows into the third slag cavity to form a third slag part;

[0011] The fixed mold frame includes a fixed mold frame bottom plate and a fixed mold frame main plate capable of closing or opening the mold;

[0012] When the fixed mold frame bottom plate and the fixed mold frame main plate are opened, the slag removal assembly cooperates with the second slag material piece, thereby causing the second slag material piece to fall off from the fixed mold mechanism;

[0013] The slag discharge assembly includes a top loosening module and a discharge module. The top loosening module is installed on the fixed mold frame and cooperates with the second slag piece to loosen the second slag piece. The discharge module is installed on the fixed mold frame and cooperates with the second slag piece to make the second slag piece fall off from the fixed mold mechanism.

[0014] In one embodiment of the utility model, the ejector loosening module includes a first driving member, a push block, a ejector rod and a ejector rod mounting block. The first driving member is mounted on the bottom plate of the fixed mold frame. The push block is connected to the driving end of the first driving member and can slide in the bottom plate of the fixed mold frame. The ejector rod mounting block can be movably mounted on the bottom plate of the fixed mold frame and cooperate with the push block. The ejector rod is mounted on the ejector rod mounting block and cooperates with the second slag material part. Under the drive of the first driving member, the push block can drive the ejector rod mounting block to move, thereby driving the ejector rod to push the second slag material part, thereby loosening the second slag material part.

[0015] In one embodiment of the utility model, the discharge module includes a rotating shaft and a shift rod. The rotating shaft is rotatably mounted on the bottom plate of the fixed mold frame and cooperates with the push block. One end of the shift rod is mounted on the rotating shaft, and the other end cooperates with the second slag material part. When the first driving member drives the push block to move, the push block synchronously drives the rotating shaft to rotate.

[0016] In one embodiment of the utility model, a limit groove is provided on one side of the push block, a pull block matching the limit groove is provided at the first end of the rotating shaft, and a pull rod is provided at the second end of the rotating shaft. Thus, the corresponding function can be realized through a simple structure with low cost.

[0017] In one embodiment of the utility model, one end surface of the push block that cooperates with the push rod mounting block is provided with a first inclined surface, and one end surface of the push rod mounting block that cooperates with the push block is provided with a second inclined surface that cooperates with the first inclined surface. Thus, the movement of the push rod can be realized through the sliding cooperation of the first inclined surface and the second inclined surface, and the structure is simple but highly practical.

[0018] In one embodiment of the utility model, the slag removal assembly includes a first insert and a second insert, the first insert is mounted on the bottom plate of the fixed mold frame and has a first mold cavity, the second insert is mounted on the main plate of the fixed mold frame and has a second mold cavity, the fixed mold core is mounted on the main plate of the fixed mold frame and has a third mold cavity connected to the fixed mold cavity, and the first mold cavity, the second mold cavity and the third mold cavity together form a second slag cavity. Therefore, after the movable mold mechanism and the fixed mold mechanism are molded together, the molten metal first flows into the mold cavity, and then the molten metal diffused from the mold cavity in the depth direction sequentially fills the second slag cavity through the third mold cavity, the second mold cavity, and the first mold cavity to obtain a second slag part. This structure facilitates deep slag removal.

[0019] In one embodiment of the utility model, a guide protrusion is provided on the second inclined surface, a guide groove matching the guide protrusion is provided on the first inclined surface, a guide column is provided on the push rod mounting block, and a guide hole matching the guide column is provided on the first insert block. Thus, the cooperation between the guide protrusion and the guide groove can play a guiding role when the push block moves, and the cooperation between the guide column and the guide hole can play a guiding role when the push rod mounting block moves, thereby ensuring stability.

[0020] In one embodiment of the utility model, the slag discharge assembly further includes a first wear-resistant plate and a second wear-resistant plate, wherein the first wear-resistant plate is mounted on the bottom plate of the fixed mold frame and is located between the bottom plate of the fixed mold frame and the push block, and the second wear-resistant plate is disposed on the bottom plate of the fixed mold frame and is located between the bottom plate of the fixed mold frame and the top rod mounting block. Thus, the first wear-resistant plate and the second wear-resistant plate play an isolating and wear-resistant role, and can extend the service life of the slag discharge assembly.

[0021] In one embodiment of the utility model, the exhaust assembly includes a first exhaust block arranged on the fixed mold frame main board and a second exhaust block arranged on the movable mold frame, and the third slag cavity includes a main cavity arranged on the movable mold frame, a first branch cavity and a second branch cavity arranged on the fixed mold frame main board, one end of the main cavity is connected to the first exhaust block and the second exhaust block, and the other end is respectively connected to the first branch cavity and the second branch cavity. Thus, the first slag material part (i.e., slag bag) can be formed through the first slag cavity, the first slag cavity can accommodate the gas that first enters the cavity, and can cooperate with the feed channel to control the flow state of the molten liquid filling, and can prevent local eddy currents. The third slag cavity is respectively connected to the first slag cavity and the exhaust assembly, and can quickly discharge the gas to increase the density of the die casting.

[0022] In one embodiment of the utility model, the die-casting mold with slag removal and exhaust function also includes a movable frame, a base, a lifting mechanism, a core pulling mechanism and a feeding mechanism, the feeding mechanism includes a diverter cone and a gate sleeve, the gate sleeve is sleeved on the fixed mold frame, the diverter cone is installed on the movable mold frame and can be sleeved in the gate sleeve when the mold is closed, a feeding channel is formed between the gate sleeve and the diverter cone, the fixed mold core is provided with a diverter channel, one end of the diverter channel is connected to the feeding channel, and the other end is connected to the fixed mold cavity, the base is installed on the movable frame, the movable mold frame is installed on the base, the lifting mechanism can be movably installed on the movable frame and cooperate with the movable mold core, and is used to push the die casting out of the movable mold core, the core pulling mechanism is installed on the movable mold frame and cooperates with the cavity, and is used to form a concave-convex structure and / or a hole groove structure on the side of the die casting, and the lifting mechanism can be movably installed on the movable frame and cooperate with the movable mold core, and is used to push the die casting out of the movable mold core.

[0023] Thus, the diverter cone is connected to the feed channel, so that the molten metal liquid can be diverted from the feed channel to each diverter channel. By setting the feeding mechanism, the introduction direction of the molten metal liquid can be improved, and the injection speed can be reduced, which has the effect of reducing the generation of pores. By setting the core pulling mechanism, a concave-convex structure and / or a hole-groove structure can be formed around the die-casting part, realizing one-time molding with good molding quality, effectively reducing the die-casting scrap rate, and being able to improve production efficiency and reduce production costs.

[0024] In one embodiment of the present invention, the die-casting mold with slag and gas removal functions further includes an opening and closing mechanism, and the opening and closing mechanism includes a plurality of shutters respectively connected to the fixed mold frame main board and the movable mold frame.

[0025] As described above, the die-casting mold with slag and exhaust functions of the utility model has the following beneficial effects:

[0026] The utility model provides a die-casting mold with a brand-new structure. The die-casting mold is provided with a brand-new slag and exhaust mechanism, and its principle is:

[0027] After the movable mold mechanism and the fixed mold mechanism are closed, the molten metal first flows into the mold cavity, and then the molten metal diffused from the mold cavity to the depth direction passes through the third mold cavity, the second mold cavity, and the first mold cavity to fill the second slag cavity in turn. The molten metal expanding from the mold cavity to the surrounding areas first enters the first slag cavity, and then enters the third slag cavity; after cooling and molding, the mold is opened, and the fixed mold frame main board and the fixed mold frame bottom plate are opened first to separate the second slag piece from the die casting. The second slag piece is retained on the fixed mold frame bottom plate, and the die casting is retained in the movable mold core. At this time, the first slag The first slag piece and the third slag piece are connected with the die-casting piece, and the slag removal assembly is actuated, and its specific working principle is: the first driving piece drives the push block to move, and the push block and the ejector mounting block are extruded and matched with the first inclined surface and the second inclined surface, thereby driving the ejector mounting block to move, thereby driving the ejector to move, and loosening the second slag piece from the first embedded block; at the same time, the movement of the push block will drive the rotation shaft to rotate, thereby driving the lever to swing and act on the second slag piece, so that the second slag piece falls off; the first slag piece and the third slag piece connected with the die-casting piece can be removed separately later.

[0028] The utility model provides a die-casting mold with a brand-new structure. The die-casting mold is provided with a special slag discharge and exhaust mechanism, which can quickly discharge the gas and increase the density of the die-casting. More importantly, a second slag cavity is also provided at the other end in the depth direction of the cavity. The molten metal flows into the second slag cavity and forms a second slag piece after cooling. The slag discharge assembly cooperates with the second slag piece, which can make the second slag piece fall off from the fixed mold mechanism. The utility model can realize the automatic dropping of the slag piece, reduce the subsequent slag discharge work, and greatly improve the production efficiency. Due to the setting of the slag discharge and exhaust mechanism, the die-casting mold can realize deep slag discharge, which is suitable for the die-casting production of complex products. The yield rate of die-castings with high airtightness requirements is greatly improved, and the quality of die-castings (especially airtightness) can be improved by several levels. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 Shown is a three-dimensional structural schematic diagram of a die-casting mold with slag and gas removal functions according to one embodiment of the present invention.

[0030] Figure 2 for Figure 1 The three-dimensional structural schematic diagram of the die-casting mold with slag and exhaust functions is shown with some structures omitted.

[0031] Figure 3 for Figure 2 One of the exploded structural schematic diagrams of the die-casting mold with slag removal and exhaust function is shown.

[0032] Figure 4 for Figure 2 The second schematic diagram of the explosion structure of the die-casting mold with slag removal and exhaust function is shown.

[0033] Figure 5 It is a schematic diagram of the three-dimensional structure of a product produced by die-casting using a die-casting mold with slag and gas removal functions according to one embodiment of the utility model.

[0034] Figure 6 for Figure 2 One of the three-dimensional structural schematic diagrams of the die-casting mold with slag and exhaust functions after omitting some structures.

[0035] Figure 7 for Figure 6 The three-dimensional structural schematic diagram of the die-casting mold with slag and exhaust functions is shown after some mechanisms are omitted.

[0036] Figure 8 for Figure 2 The second schematic diagram of the three-dimensional structure of the die-casting mold with slag and exhaust functions after omitting some structures.

[0037] Fig. 9 for Figure 8 The schematic diagram of the cross-sectional structure of the die-casting mold with slag and gas removal function in one direction is shown.

[0038] Fig.10 for Figure 2 The third schematic diagram of the three-dimensional structure of the die-casting mold with slag and exhaust functions after omitting some structures.

[0039] Fig.11 for Fig.10 One of the exploded structural schematic diagrams of the die-casting mold with slag removal and exhaust function shown;

[0040] Fig.12 for Fig.10 The second schematic diagram of the explosion structure of the die-casting mold with slag removal and exhaust function is shown.

[0041] Fig.13 for Fig.12 The schematic diagram of the partial structure of the die-casting mold with slag removal and exhaust function is shown.

[0042] Fig.14 for Fig.13 The changing state diagram of the die-casting mold with slag removal and exhaust function is shown.

[0043] Fig.15 for Fig.14 The exploded structural schematic diagram of a partial structure of a die-casting mold with slag removal and exhaust function is shown.

[0044] Figure 1-15Reference numerals in the figure: 1-movable frame; 2-base; 3-lifting mechanism; 4-fixed mold mechanism; 5-movable mold mechanism; 6-slag discharge and exhaust mechanism; 7-opening and closing mechanism; 8-core pulling mechanism; 9-feeding mechanism; 41-fixed mold frame; 42-fixed mold core; 51-movable mold frame; 52-movable mold core; 61-slag discharge assembly; 62-first slag cavity; 63-second slag cavity; 64-third slag cavity; 65-exhaust assembly; 71-opener and closer; 81-first core pulling assembly; 82-second core pulling assembly; 83-third core pulling assembly; 84-fourth core pulling assembly; 91-diverter cone; 92-gate sleeve; 93-feeding channel; 100-die casting; 200-first slag material; 300-second slag material; 400-third slag material; 500-gate piece; 411-fixed mold frame bottom plate; 412-fixed mold frame main board; 421-fixed mold cavity; 422-third mold cavity; 423-diverter channel; 521-punch; 611-first driving member; 612-push block; 613-rod mounting block; 614-rod; 615-first insert; 616-second insert; 617-first wear-resistant plate; 618-second wear-resistant plate; 619-guide post; 620-rotating shaft; 621-push rod; 622-push block; 641-main cavity; 642-first branch cavity; 643-second branch cavity; 651-first exhaust block; 652-second exhaust block; 811-first slider; 812-first slide seat; 813-second driving member; 821-second slider; 822-second Slide seat; 823-third driving member; 831-third slider; 832-third slide seat; 833-fourth driving member; 841-fourth slider; 842-fourth slide seat; 843-fifth driving member; 411a-first mounting groove; 412a-second mounting groove; 612a-first inclined surface; 612b-guide groove; 612c-limiting groove; 613a-second inclined surface; 613b-guide protrusion; 615a-first mold cavity; 615b-guide hole; 616a-second mold cavity. DETAILED DESCRIPTION

[0045] The following describes the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0046] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and thus the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed at will, and the component layout may also be more complicated.

[0047] See also Figure 1-Figure 12 The utility model provides a die-casting mold with slag removal and exhaust function in the following embodiments. The die-casting mold with slag removal and exhaust function belongs to the field of mold technology and can solve the problems of high scrap rate of die-castings and low density of die-castings in the prior art.

[0048] like Figure 1-12 As shown, the utility model provides a die-casting mold with slag and gas removal functions in one mode.

[0049] The die-casting mold with slag and exhaust functions comprises at least:

[0050] The fixed mold mechanism 4 includes a fixed mold frame 41 and a fixed mold core 42. The fixed mold core 42 is installed on the fixed mold frame 41. The fixed mold core 42 is provided with a fixed mold cavity 421.

[0051] The movable mold mechanism 5 includes a movable mold frame 51 and a movable mold core 52. The movable mold core 52 is installed on the movable mold frame 51. A convex mold 521 matching with the fixed mold cavity 421 is provided on the movable mold core 52. When the fixed mold mechanism 4 and the movable mold mechanism 5 are molded together, the movable mold core 52 and the fixed mold core 42 are enclosed to form a mold cavity.

[0052] The slag discharge and exhaust mechanism 6 comprises a slag discharge assembly 61, a first slag cavity 62 and a second slag cavity 63 respectively connected to the two ends of the cavity in the depth direction, a third slag cavity 64 connected to the first slag cavity 62, and an exhaust assembly 65 connected to the third slag cavity 64, wherein the second slag cavity 63 is arranged on the fixed mold mechanism 4;

[0053] The molten metal enters the mold, flows into the mold cavity to form the die casting 100, flows into the first slag cavity 62 to form the first slag part 200, flows into the second slag cavity 63 to form the second slag part 300, and flows into the third slag cavity 64 to form the third slag part 400;

[0054] The fixed mold frame 41 includes a fixed mold frame bottom plate 411 and a fixed mold frame main plate 412 capable of closing or opening the mold;

[0055] When the fixed mold frame bottom plate 411 and the fixed mold frame main plate 412 are opened, the slag removal assembly 61 cooperates with the second slag material piece 300, so that the second slag material piece 300 falls off from the fixed mold mechanism 4;

[0056] The slag discharge assembly 61 includes a top loosening module and a discharge module. The top loosening module is installed on the fixed mold frame 41 and cooperates with the second slag piece 300 to loosen the second slag piece 300. The discharge module is installed on the fixed mold frame 41 and cooperates with the second slag piece 300 to make the second slag piece 300 fall off from the fixed mold mechanism 4.

[0057] Preferably, the top loosening module includes a first driving member 611, a push block 612, a push rod 614 and a push rod mounting block 613. The first driving member 611 is installed on the fixed mold frame bottom plate 411. The push block 612 is connected to the driving end of the first driving member 611 and can slide in the fixed mold frame bottom plate 411. The push rod mounting block 613 can be movably installed on the fixed mold frame bottom plate 411 and cooperate with the push block 612. The push rod 614 is installed on the push rod mounting block 613 and cooperates with the second slag material part 300. Under the drive of the first driving member 611, the push block 612 can drive the push rod mounting block 613 to move, thereby driving the push rod 614 to push the second slag material part 300, so that the second slag material part 300 is loosened.

[0058] Preferably, the discharge module includes a rotating shaft 620 and a lever 621. The rotating shaft 620 is rotatably mounted on the fixed mold frame bottom plate 411 and cooperates with the push block 612. One end of the lever 621 is mounted on the rotating shaft 620, and the other end cooperates with the second slag material part 300. When the first driving member 611 drives the push block 612 to move, the push block 612 synchronously drives the rotating shaft 620 to rotate.

[0059] Preferably, a limiting groove 612c is provided on one side of the push block 612, a pull block 622 matching the limiting groove 612c is provided on the first end of the rotating shaft 620, and a lever 621 is provided on the second end of the rotating shaft 620. Thus, the corresponding functions can be realized through a simple structure with low cost.

[0060] Preferably, the slag removal group further includes a first insert 615 and a second insert 616, the fixed mold frame bottom plate 411 is provided with a first mounting groove 411a, the first insert 615 is installed in the first mounting groove 411a of the fixed mold frame bottom plate 411 and is provided with a first mold cavity 615a, the fixed mold frame main plate 412 is provided with a second mounting groove 412a, the second insert 616 is installed in the second mounting groove 412a of the fixed mold frame main plate 412 and is provided with a second mold cavity 616a, the fixed mold core 42 is installed on the fixed mold frame main plate 412 and is provided with a third mold cavity 422 connected to the fixed mold cavity 421, and the first mold cavity 615a, the second mold cavity 616a and the third mold cavity 422 jointly form a second slag cavity 63;

[0061] Preferably, the third mold cavity 422, the second mold cavity 616a and the first mold cavity 615a are arranged in sequence along the depth direction, and the volume of the cavity increases gradually.

[0062] Further preferably, a lower concave cavity is provided in the middle of the fixed mold cavity 421, and the number of the lower concave cavities may be multiple, and the multiple lower concave cavities are arranged in sequence and spaced apart, and may be multiple rows, and the number of the second slag cavities 63 corresponds to the number of the lower concave cavities.

[0063] The solution of the utility model is at least applicable to die-cast products with a cavity of a certain depth, such as the housing of a sensor for an automobile, etc.

[0064] Preferably, one end face of the push block 612 that cooperates with the push rod mounting block 613 is provided with a first inclined surface 612a, and one end face of the push rod mounting block 613 that cooperates with the push block 612 is provided with a second inclined surface 613a that cooperates with the first inclined surface 612a. Thus, the movement of the push rod 614 can be realized through the sliding cooperation of the first inclined surface 612a and the second inclined surface 613a, and the structure is simple but highly practical.

[0065] Preferably, the second inclined surface 613a is provided with a guide protrusion 613b, the first inclined surface 612a is provided with a guide groove 612b matched with the guide protrusion 613b, the push rod mounting block 613 is provided with a guide column 619, and the first insert block 615 is provided with a guide hole 615b matched with the guide column 619. Therefore, the cooperation between the guide protrusion 613b and the guide groove 612b can play a guiding role when the push block 612 moves, and the cooperation between the guide column 619 and the guide hole 615b can play a guiding role when the push block 612 moves, and the stability can be ensured.

[0066] Preferably, the slag discharge assembly 61 further includes a first wear-resistant plate 617 and a second wear-resistant plate 618. The first wear-resistant plate 617 is installed on the fixed mold frame bottom plate 411 and is located between the fixed mold frame bottom plate 411 and the push block 612. The second wear-resistant plate 618 is arranged on the fixed mold frame bottom plate 411 and is located between the fixed mold frame bottom plate 411 and the push rod mounting block 613. Therefore, the first wear-resistant plate 617 and the second wear-resistant plate 618 play an isolation and wear-resistant role, which can extend the service life of the slag discharge assembly 61.

[0067] Preferably, the exhaust assembly 65 includes a first exhaust block 651 disposed on the fixed mold frame main board 412 and a second exhaust block 652 disposed on the movable mold frame 51, and the third slag cavity 64 includes a main cavity 641 disposed on the movable mold frame 51, a first branch cavity 642 and a second branch cavity 643 disposed on the fixed mold frame main board 412, one end of the main cavity 641 is connected to the first exhaust block 651 and the second exhaust block 652, and the other end is respectively connected to the first branch cavity 642 and the second branch cavity 643. Thus, the first slag material part 200 (i.e., slag bag) can be formed through the first slag cavity 62, the first slag cavity 62 can accommodate the gas that first enters the cavity, and can cooperate with the feed channel 93 to control the flow state of the molten liquid filling, and can prevent local eddy currents, and the third slag cavity 64 is respectively connected to the first slag cavity 62 and the exhaust assembly 65, and can quickly discharge the gas, thereby increasing the density of the die casting 100.

[0068] Preferably, the die-casting mold with slag and gas removal function also includes a movable frame 1, a base 2, a lifting mechanism 3 and an opening and closing mechanism 7. The base 2 is installed on the movable frame 1, and the movable mold frame 51 is installed on the base 2. The lifting mechanism 3 can be movably installed on the movable frame 1 and cooperate with the movable mold core 52 to push the die-casting part 100 out of the movable mold core 52. The opening and closing mechanism 7 includes a plurality of openers 71 respectively connected to the fixed mold frame main board 412 and the movable mold frame 51.

[0069] Preferably, the die-casting mold with slag and gas discharge function further includes a core pulling mechanism 8, which is installed on the movable mold frame 51 and cooperates with the mold cavity to form a concave-convex structure and / or a hole-groove structure on the side of the die-casting 100. The core pulling mechanism 8 includes a first core pulling component 81, a second core pulling component 82, a third core pulling component 83 and a fourth core pulling component 84 distributed around the movable mold core 52;

[0070] The first core pulling assembly 81 includes a first slider 811, a first slide seat 812 and a second driving member 813. The first slide seat 812 and the second driving member 813 are installed on the movable mold frame 51. The first slider 811 is installed on the first slide seat 812. The first slide seat 812 is slidably installed on the movable mold frame 51 and connected to the second driving member 813. The second driving member 813 is used to drive the first slider 811 to approach or move away from the movable mold core 52.

[0071] The second core pulling assembly 82 includes a second slider 821, a second slide seat 822 and a third driving member 823. The second slide seat 822 and the third driving member 823 are installed on the movable mold frame 51. The second slider 821 is installed on the second slide seat 822. The second slide seat 822 is slidably installed on the movable mold frame 51 and connected to the third driving member 823. The third driving member 823 is used to drive the second slider 821 to approach or move away from the movable mold core 52.

[0072] The third core pulling assembly 83 includes a third slider 831, a third slide seat 832 and a fourth driving member 833. The third slide seat 832 and the fourth driving member 833 are installed on the movable mold frame 51. The third slider 831 is installed on the third slide seat 832. The third slide seat 832 is slidably installed on the movable mold frame 51 and connected to the fourth driving member 833. The fourth driving member 833 is used to drive the third slider 831 to approach or move away from the movable mold core 52.

[0073] The fourth core pulling assembly 84 includes a fourth slider 841, a fourth slide 842 and a fifth driving member 843. The fourth slide 842 and the fifth driving member 843 are installed on the movable mold frame 51. The fourth slider 841 is installed on the fourth slide 842. The fourth slide 842 is slidably installed on the movable mold frame 51 and is connected to the fifth driving member 843. The fifth driving member 843 is used to drive the fourth slider 841 to approach or move away from the movable mold core 52.

[0074] Preferably, the first driving member 611 , the second driving member 813 , the third driving member 823 , the fourth driving member 833 and the fifth driving member 843 may all be hydraulic cylinders.

[0075] Therefore, by setting the core-pulling mechanism 8, a concave-convex structure and / or a hole-groove structure can be formed around the die-casting 100, achieving one-time molding with good molding quality, effectively reducing the die-casting scrap rate, and being able to improve production efficiency and reduce production costs.

[0076] Preferably, the die-casting mold with slag and gas discharge function also includes a feed mechanism 9, which includes a diverter cone 91 and a sprue sleeve 92. The sprue sleeve 92 is mounted on the fixed mold frame 41, and the diverter cone 91 is installed on the movable mold frame 51 and can be mounted in the sprue sleeve 92 when the mold is closed. A feed channel 93 is formed between the sprue sleeve 92 and the diverter cone 91. The fixed mold core 42 is provided with a diverter channel 423, one end of the diverter channel 423 is connected to the feed channel 93, and the other end is connected to the fixed mold cavity 421. Therefore, the diverter cone 91 is connected to the feed channel 93, which can divert the molten metal liquid from the feed channel 93 to each diverter channel 423, which can improve the introduction direction of the molten metal liquid, and can also reduce the injection speed, which has the effect of reducing the generation of pores.

[0077] The molten metal flows into the feed channel 93 and forms a gate member 500 after being cooled. The gate member 500 is connected to the die casting 100 and can be removed after demoulding.

[0078] The working principle of the die-casting mold with slag and exhaust functions of the utility model is as follows:

[0079] S1, molding: the movable mold mechanism 5 and the fixed mold mechanism 4 are molded together, and the molten metal liquid is injected into the mold through the feeding mechanism 9, and the molten metal liquid flows into the mold cavity and is cooled to form a die casting 100, flows into the first slag cavity 62 and is cooled to form a first slag material part 200, flows into the second slag cavity 63 and is cooled to form a second slag material part 300, and flows into the third slag cavity 64 and is cooled to form a third slag material part 400;

[0080] S2. Demolding:

[0081] S21, after die casting is completed, the mold opening action is performed. The movable mold frame 51 and the fixed mold frame main board 412 will not be opened under the action of the shutter 71. The fixed mold frame main board 412 and the fixed mold frame bottom plate 411 are opened. Figure 3 As shown;

[0082] S22, the second slag piece 300 is separated from the die casting 100 through the mold opening action of step S21, the second slag piece 300 is retained on the fixed mold frame bottom plate 411, and the die casting 100 is retained on the movable mold core 52, and the first slag piece 200 and the third slag piece 400 are connected to the die casting 100;

[0083] S23, continue the mold opening work, so that the movable mold frame 51 and the fixed mold frame main board 412 are opened, and the die casting 100 is retained in the movable mold core 52, such as Figure 4 As shown;

[0084] S24, after the mold opening action is completed, the slag removal assembly 61 and the core pulling mechanism 8 act together, the first driving member 611 drives the push block 612 to move, and the core pulling mechanism 8 performs a core pulling movement;

[0085] S25, the push block 612 moves to squeeze and cooperate with the push rod mounting block 613, driving the push rod mounting block 613 to move, and then driving the push rod 614 to move, so as to loosen the second slag material 300 from the fixed mold frame bottom plate 411. At the same time, the movement of the push block 612 drives the rotating shaft 620 to rotate, and then drives the lever 621 to swing and act on the second slag material 300, so that the second slag material 300 falls off;

[0086] S26, the ejection mechanism is actuated to eject the die casting 100 from the movable die core 52, and the die casting 100 is demoulded. Figure 5 As shown, the gate piece 500 , the first slag piece 200 and the third slag piece 400 around the die casting 100 can be removed manually or by machine.

[0087] As described above, the die-casting mold with slag and exhaust functions of the utility model has the following beneficial effects:

[0088] The utility model provides a die-casting mold with a brand-new structure. The die-casting mold has a brand-new slag and exhaust mechanism 6, the principle of which is:

[0089] After the movable mold mechanism 5 and the fixed mold mechanism 4 are molded together, the molten metal first flows into the mold cavity, and then the molten metal diffused from the mold cavity to the depth direction successively passes through the third mold cavity 422, the second mold cavity 616a, and the first mold cavity 615a to fill the second slag cavity 63, and the molten metal expanded from the mold cavity to the surrounding areas first enters the first slag cavity 62, and then enters the third slag cavity 64; after cooling and molding, the mold opening action is performed, and the fixed mold frame main board 412 and the fixed mold frame bottom plate 411 are opened first to separate the second slag material part 300 from the die casting 100, and the second slag material part 300 is retained on the fixed mold frame bottom plate 411, while the die casting 100 is retained on the movable mold core 52. At this time, the first slag material part 200 and the third slag material part 400 The slag removal assembly 61 is connected to the die casting 100 and operates, and its specific working principle is: the first driving member 611 drives the push block 612 to move, and the push block 612 and the push rod mounting block 613 are extruded and matched with the first inclined surface 612a and the second inclined surface 613a, driving the push rod mounting block 613 to move, and then driving the push rod 614 to move, and the second slag material part 300 is loosened from the first embedded block 615. At the same time, the movement of the push block 612 will drive the rotating shaft 620 to rotate, and then drive the lever 621 to swing and act on the second slag material part 300, so that the second slag material part 300 falls off; and the first slag material part 200 and the third slag material part 400 connected to the die casting 100 can be removed separately later.

[0090] The slag discharge and exhaust mechanism 6 can quickly discharge the gas, increasing the density of the die casting 100. More importantly, a second slag cavity 63 is also provided at the other end of the cavity in the depth direction, and the molten metal flows into the second slag cavity 63 and is cooled to form a second slag piece 300. The slag discharge assembly 61 cooperates with the second slag piece 300, and the second slag piece 300 can be dropped from the fixed mold mechanism 4. The utility model can realize the automatic dropping of the slag piece, reduce the subsequent slag discharge work, and greatly improve the production efficiency.

[0091] Due to the setting of the slag removal and exhaust mechanism 6, the die-casting mold can achieve deep slag removal, which is suitable for the die-casting production of complex products. The yield of the die-casting 100 with high airtightness requirements is greatly improved, and the quality of the die-casting 100 (especially the airtightness) can be improved by several levels.

[0092] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A die-casting mold with slag and exhaust functions, characterized in that: At least: The fixed mold mechanism (4) comprises a fixed mold frame (41) and a fixed mold core (42), wherein the fixed mold core (42) is mounted on the fixed mold frame (41), and the fixed mold core (42) is provided with a fixed mold cavity (421); The movable mold mechanism (5) comprises a movable mold frame (51) and a movable mold core (52), wherein the movable mold core (52) is mounted on the movable mold frame (51), and a convex mold (521) matching with the fixed mold cavity (421) is arranged on the movable mold core (52), and when the fixed mold mechanism (4) and the movable mold mechanism (5) are molded together, a mold cavity is enclosed between the movable mold core (52) and the fixed mold core (42); A slag discharge and exhaust mechanism (6), comprising a slag discharge assembly (61), a first slag cavity (62) and a second slag cavity (63) respectively connected to two ends of the cavity in the depth direction, a third slag cavity (64) connected to the first slag cavity (62), and an exhaust assembly (65) connected to the third slag cavity (64), wherein the second slag cavity (63) is arranged on the fixed mold mechanism (4); The molten metal enters the mold, flows into the mold cavity to form a die casting (100), flows into the first slag cavity (62) to form a first slag part (200), flows into the second slag cavity (63) to form a second slag part (300), and flows into the third slag cavity (64) to form a third slag part (400); The fixed mold frame (41) comprises a fixed mold frame bottom plate (411) and a fixed mold frame main plate (412) capable of closing or opening the mold; When the fixed mold frame bottom plate (411) and the fixed mold frame main plate (412) are opened, the slag removal assembly (61) cooperates with the second slag material piece (300), thereby causing the second slag material piece (300) to fall off from the fixed mold mechanism (4); The slag discharge assembly (61) comprises a top loosening module and a discharge module. The top loosening module is mounted on the fixed mold frame (41) and cooperates with the second slag material piece (300) to loosen the second slag material piece (300). The discharge module is mounted on the fixed mold frame (41) and cooperates with the second slag material piece (300) to loosen the second slag material piece (300).

2. The die-casting mold with slag and gas removal function according to claim 1, characterized in that: The ejector loosening module comprises a first driving member (611), a push block (612), an ejector rod (614) and an ejector rod mounting block (613); the first driving member (611) is mounted on the fixed mold frame bottom plate (411); the push block (612) is connected to the driving end of the first driving member (611) and can slide in the fixed mold frame bottom plate (411); the ejector rod mounting block (613) can be movably mounted on the fixed mold frame bottom plate (411) and cooperate with the push block (612); the ejector rod (614) is mounted on the ejector rod mounting block (613) and cooperate with the second slag material part (300); under the drive of the first driving member (611), the push block (612) can drive the ejector rod mounting block (613) to move, thereby driving the ejector rod (614) to push the second slag material part (300), so that the second slag material part (300) is loosened.

3. The die-casting mold with slag and gas removal function according to claim 2, characterized in that: The discharge module comprises a rotating shaft (620) and a shifting rod (621). The rotating shaft (620) is rotatably mounted on the fixed die frame bottom plate (411) and cooperates with the pushing block (612). One end of the shifting rod (621) is mounted on the rotating shaft (620), and the other end cooperates with the second slag material part (300). When the first driving part (611) drives the pushing block (612) to move, the pushing block (612) synchronously drives the rotating shaft (620) to rotate.

4. The die-casting mold with slag and gas removal function according to claim 3, characterized in that: A limiting groove (612c) is provided on one side of the push block (612), a pull block (622) matched with the limiting groove (612c) is provided at the first end of the rotating shaft (620), and the pull rod (621) is provided at the second end of the rotating shaft (620).

5. The die-casting mold with slag and gas removal function according to claim 2, characterized in that: One end surface of the push block (612) that cooperates with the push rod mounting block (613) is provided with a first inclined surface (612a), and one end surface of the push rod mounting block (613) that cooperates with the push block (612) is provided with a second inclined surface (613a) that cooperates with the first inclined surface (612a).

6. The die-casting mold with slag and gas removal function according to claim 5, characterized in that: The slag removal assembly (61) further comprises a first insert (615) and a second insert (616); the first insert (615) is mounted on the fixed mold frame bottom plate (411) and is provided with a first mold cavity (615a); the second insert (616) is mounted on the fixed mold frame main plate (412) and is provided with a second mold cavity (616a); the fixed mold core (42) is mounted on the fixed mold frame main plate (412) and is provided with a third mold cavity (422) which is in communication with the fixed mold cavity (421); the first mold cavity (615a), the second mold cavity (616a) and the third mold cavity (422) together form the second slag cavity (63).

7. The die-casting mold with slag and gas removal function according to claim 6, characterized in that: The second inclined surface (613a) is provided with a guide protrusion (613b), the first inclined surface (612a) is provided with a guide groove (612b) matched with the guide protrusion (613b), the push rod mounting block (613) is provided with a guide column (619), and the first embedded block (615) is provided with a guide hole (615b) matched with the guide column (619).

8. The die-casting mold with slag and gas removal function according to any one of claims 2 to 7, characterized in that: The slag discharge assembly (61) further comprises a first wear-resistant plate (617) and a second wear-resistant plate (618), wherein the first wear-resistant plate (617) is mounted on the fixed mold frame bottom plate (411) and is located between the fixed mold frame bottom plate (411) and the push block (612), and the second wear-resistant plate (618) is arranged on the fixed mold frame bottom plate (411) and is located between the fixed mold frame bottom plate (411) and the push rod mounting block (613).

9. The die-casting mold with slag and gas removal function according to any one of claims 1 to 7, characterized in that: The exhaust assembly (65) includes a first exhaust block (651) arranged on the fixed mold frame main board (412) and a second exhaust block (652) arranged on the movable mold frame (51); the third slag cavity (64) includes a main cavity (641) arranged on the movable mold frame (51), a first branch cavity (642) and a second branch cavity (643) arranged on the fixed mold frame main board (412); one end of the main cavity (641) is connected to the first exhaust block (651) and the second exhaust block (652), and the other end is respectively connected to the first branch cavity (642) and the second branch cavity (643).

10. The die-casting mold with slag and gas removal function according to any one of claims 1 to 7, characterized in that: The mold assembly also comprises a movable frame (1), a base (2), a lifting mechanism (3), a core pulling mechanism (8) and a feeding mechanism (9), wherein the feeding mechanism (9) comprises a diverter cone (91) and a sprue sleeve (92), wherein the sprue sleeve (92) is sleeved on the fixed mold frame (41), the diverter cone (91) is mounted on the movable mold frame (51) and can be sleeved in the sprue sleeve (92) when the mold is closed, a feeding channel (93) is formed between the sprue sleeve (92) and the diverter cone (91), and the fixed mold core (42) is provided with a diverter channel (423), one end of the diverter channel (423) is connected to the feeding channel (93), and the other end is connected to the fixed mold cavity (421). The base (2) is mounted on a movable frame (1), the movable die frame (51) is mounted on the base (2), the lifting mechanism (3) is movably mounted on the movable frame (1) and cooperates with the movable die core (52) to eject the die casting (100) out of the movable die core (52), the core pulling mechanism (8) is mounted on the movable die frame (51) and cooperates with the cavity to form a concave-convex structure and / or a hole-groove structure on the side of the die casting (100), and the lifting mechanism (3) is movably mounted on the movable frame (1) and cooperates with the movable die core (52) to eject the die casting (100) out of the movable die core (52).

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