Driving end cover die-casting die

Abstract

The invention discloses a driving end cover die-casting die, which belongs to the related technical field of driving end cover production, and comprises an upper die holder, a lower die holder, a cushion block, an ejector pin plate assembly, a bottom plate and an ejector pin assembly, an upper die core and a lower die core are respectively arranged in the upper die holder and the lower die holder, and the lower die core and the upper die core form a die cavity with a driving end cover as a parting surface; a shunting nozzle, a sprue bush and a main runner are arranged between the lower mold core and the upper mold core, the other side of the cavity of the lower mold core is communicated with a second cinder ladle and a first cinder ladle, and the upper mold core is also communicated with the first cinder ladle; the second cinder ladle flows between the upper exhaust plate and the lower exhaust plate through the first exhaust channel; a cooling runner is arranged in the upper die base, the upper die core and the lower die base; the ejector pin assembly is arranged on the lower die core, the lower die base and the ejector pin plate assembly. The mold is used for solving the technical problems of unreasonable mold design, low cooling efficiency, improper exhaust and cinder ladle management and non-uniform ejector pin distribution in the prior art.

Description

Technical Field

[0001] The invention belongs to the technical field related to the production of drive end covers, and specifically relates to a die-casting mold for a drive end cover. Background Art

[0002] In mechanical engineering, drive end caps are often used to enclose one end of a mechanical device, protecting internal transmission components such as gears and bearings, and possibly providing lubrication and sealing functions. They are used in many fields, including automobiles, industrial machinery, and household appliances. Therefore, developing an efficient and precise die-casting mold for drive end caps is particularly important.

[0003] Traditional die-casting molds have the following problems during the production process: Unreasonable mold design: Due to the unreasonable design of the parting surface in the mold design, it cannot meet the production requirements of the drive end cover.

[0004] Low cooling efficiency: The unreasonable design of the mold cooling system leads to low cooling efficiency, long production cycle and poor production efficiency.

[0005] Improper exhaust and slag bag management: Improper exhaust and slag bag management design of the mold will result in the ineffective discharge of gas and impurities in the mold, affecting the surface quality of the product and the uniformity of the internal structure.

[0006] Uneven distribution of ejector pins: The ejector pins of the mold are unevenly distributed, resulting in low demoulding efficiency of the product and affecting product quality.

[0007] In order to solve the above problems, the present invention proposes a drive end cover die-casting mold. Summary of the Invention

[0008] In view of the above problems, the present invention provides a drive end cover die-casting mold, which is used to solve the technical problems in the prior art such as unreasonable mold design, low cooling efficiency, improper exhaust and slag bag management, and uneven ejector pin distribution.

[0009] To achieve the above object, the technical solution adopted by the present invention is: A drive end cover die-casting mold comprises an upper mold base, a lower mold base, a pad, an ejector plate assembly, a bottom plate and an ejector assembly. An upper mold core and a lower mold core are respectively provided in the upper mold base and the lower mold base. The lower mold core and the upper mold core constitute a mold cavity with the drive end cover as the parting surface. A diverter nozzle and a gate sleeve are provided between the lower mold core and the upper mold core, and a main flow channel is provided. The other side of the cavity of the lower mold core is connected to the second slag bag and the first slag bag, and the upper mold core is also connected to the first slag bag; the second slag bag flows between the upper exhaust plate and the lower exhaust plate through the first exhaust channel; cooling flow channels are provided in the upper mold base, the upper mold core, the lower mold base and the lower mold core; the ejector assembly is provided on the lower mold core, the lower mold base and the ejector plate assembly.

[0010] As a further improvement of the above scheme, the ejector pin assembly includes a main channel ejector pin arranged below the main channel, an outer circular hole ejector pin, a side ear ejector pin and a middle ejector pin under the driving end cover; a second slag bag ejector pin is arranged under the second slag bag, and an exhaust block ejector pin is arranged under the lower exhaust plate.

[0011] As a further improvement of the above scheme, 8 main channel ejectors are provided; 7 outer circular hole ejectors are provided; 4 side ear ejectors are provided; 8 middle ejectors are provided; 3 second slag bag ejectors are provided; and 6 exhaust block ejectors are provided.

[0012] As a further improvement of the above scheme, the cooling channel includes a first cooling channel arranged in the lower mold base and the lower mold core; the upper mold base and the upper mold core are provided with a second cooling channel; the upper exhaust plate and the lower exhaust plate are respectively provided with a third cooling channel and a fourth cooling channel; and a fifth cooling channel is provided in the diverter nozzle.

[0013] As a further improvement of the above solution, the upper and lower sides of the upper mold core are respectively connected to the third slag bag, and the side end of the third slag bag is provided with a second exhaust channel; a third slag bag ejector is provided under the third slag bag.

[0014] As a further improvement of the above scheme, the upper exhaust plate and the lower exhaust plate are respectively arranged at the side ends of the upper mold core and the lower mold core; exhaust blocks formed by grooves and protrusions are respectively provided between the upper exhaust plate and the lower exhaust plate, and the exhaust blocks are arranged to be a wavy structure, the wavy shape close to the lower mold core and the upper mold core is disconnected, and the wavy shape away from the lower mold core and the upper mold core is continuous.

[0015] As a further improvement of the above solution, three second slag bags are provided; the first slag bag, the second slag bag and the third slag bag are all arranged with a trapezoidal cross-section, wherein the second slag bag in the upper middle part of the lower mold core is arranged inside the first slag bag.

[0016] As a further improvement of the above scheme, second inlay pins are provided on both sides of the lower mold core, and first inlay pins are provided on both sides of the upper mold core, the lower end of the first inlay pin contacts the upper end of the second inlay pin and is provided in the side ear hole of the driving end cover; a lower inlay pin is provided in the middle of the lower mold core, and an upper inlay pin is provided in the middle of the upper mold core, the upper end of the lower inlay pin contacts the lower end of the upper inlay pin and is provided in the middle hole of the driving end cover; a third inlay pin is provided in the upper mold core, and the third inlay pin is inserted into the outer circular hole of the driving end cover.

[0017] As a further improvement of the above scheme, the upper end of the first inlay pin and the lower end of the second inlay pin are respectively provided with an upper connecting component and a lower connecting component, the upper connecting component includes an upper through-tube, the lower end of the upper through-tube is arranged in the first inlay pin, the upper half of the first inlay pin is set as a shell structure, the upper end of the upper through-tube is connected to the upper connecting piece after inserting the upper mold base, and the upper connecting piece is connected to the water pipe; the lower connecting component includes a lower through-tube, the upper end of the lower through-tube is arranged in the second inlay pin, the lower half of the second inlay pin is set as a shell structure, the lower end of the lower through-tube is connected to the lower connecting piece after inserting the lower mold base, and the lower connecting piece is connected to the water pipe As a further improvement of the above solution, the water pipe connected to the upper connecting piece is arranged in the channel of the upper mold base, and the channel is Y-shaped.

[0018] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention provides a die-casting mold for a drive end cover. By arranging an upper mold core and a lower mold core in the upper mold base and the lower mold base respectively, and making them form the parting surface mold cavity of the drive end cover, the accuracy and stability of the mold are ensured. At the same time, a diverter nozzle, a gate sleeve and a main channel are arranged to optimize the flow path of the molten metal, thereby improving the die-casting efficiency and product quality. The second slag bag and the first slag bag are connected on the other side of the cavity of the lower mold core, and the first slag bag is also connected on the upper mold core. The gas in the second slag bag is guided between the upper exhaust plate and the lower exhaust plate through the first exhaust channel, effectively eliminating the gas and impurities in the mold, and improving the surface quality of the product and the uniformity of the internal structure. Cooling channels are arranged in the upper mold base, the upper mold core and the lower mold base, and the lower mold core. Through the reasonable layout of the cooling channels, rapid cooling of the mold is achieved, the production cycle is shortened, and production efficiency is improved.

[0019] 2. This invention ensures uniform distribution and effective support of the ejector pins by arranging an ejector pin assembly on the lower mold core, lower mold base, and ejector plate assembly. Furthermore, the ejector pins for the main runner, outer hole, side lug, center, second slag ladle, and exhaust block are positioned in specific locations. This improves product demolding efficiency and quality. By specifically designing the number of ejector pins—eight main runner pins, seven outer hole pins, four side lug pins, eight center pins, three second slag ladle pins, and six exhaust block pins—the pin distribution is optimized, ensuring uniform support and effective demolding, further improving product quality and production efficiency.

[0020] 3. The present invention further optimizes the exhaust and slag bag management of the mold and improves the surface quality and uniformity of the internal structure of the product by connecting the third slag bag on the upper and lower sides of the upper mold core, providing a second exhaust channel at the side end of the third slag bag, and providing a third slag bag ejector under the third slag bag.

[0021] 4. The present invention forms an exhaust block by arranging grooves and protrusions on the upper exhaust plate and the lower exhaust plate respectively, and designs the exhaust block into a wavy structure. The wavy shape close to the lower mold core and the upper mold core is disconnected, and the wavy shape away from the lower mold core and the upper mold core is continuous, which optimizes the exhaust effect of the mold and improves the surface quality of the product and the uniformity of the internal structure.

[0022] 5. The present invention sets three second slag bags, and arranges the first slag bag, the second slag bag and the third slag bag in a trapezoidal cross-section. The second slag bag in the upper middle part of the lower mold core is arranged inside the first slag bag, which optimizes the layout of the slag bags, improves the exhaust and slag bag management effects of the mold, and further improves the surface quality of the product and the uniformity of the internal structure.

[0023] 6. The present invention forms a mold cavity through the cooperation of the upper and lower mold cores, and the provided inlay pins accurately shape the hole structures of the driving end cover, thereby ensuring the molding quality of the product. The reasonable layout of the inlay pins ensures that the molding of each hole position of the driving end cover is accurate, reducing defects such as air holes and shrinkage holes.

[0024] Direct cooling is achieved through the cooling channel inside the pin, which extends the pin's service life and improves cooling efficiency.

[0025] 7. The present invention arranges the water pipe connected to the upper connecting piece in the channel of the upper mold base, and the channel is Y-shaped, which optimizes the flow path of the cooling water, improves the cooling efficiency, shortens the production cycle, and improves the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a three-dimensional schematic diagram of the driving end cover in the present invention.

[0027] Figure 2 Schematic diagram of the parting surface of the driving end cover in the present invention.

[0028] Figure 3 Schematic diagram of the die-casting mold of the drive end cover in the present invention.

[0029] Figure 4 Schematic diagram of the upper mold core, lower mold core, upper exhaust plate and lower exhaust plate in the present invention.

[0030] Figure 5 Schematic diagram of the lower mold core, driving end cover and lower exhaust plate in the present invention.

[0031] Figure 6 Schematic diagram of the lower mold core and the lower mold base in the present invention.

[0032] Figure 7 Schematic diagram of the upper mold core and upper mold base in the present invention.

[0033] Figure 8It is a three-dimensional schematic diagram of the upper mold core, lower mold core, upper exhaust plate, lower exhaust plate, diverter nozzle and gate sleeve in the present invention.

[0034] Figure 9 Schematic diagram of the upper mold core and the upper exhaust plate in the present invention.

[0035] Figure 10 Schematic diagram of the lower mold core and the lower exhaust plate in the present invention.

[0036] Figure 11 Schematic diagram of the upper mold core, the lower mold core, the first insert pin and the second insert pin in the present invention Figure 12 It is a three-dimensional schematic diagram of the insert pin and the driving end cover in the present invention.

[0037] Figure 13 It is a three-dimensional schematic diagram of the pin inlay in the present invention.

[0038] Figure 14 Schematic diagram of the channel in the upper die base of the present invention.

[0039] In the figure: 1, lower mold core; 2, upper mold core; 3, upper mold base; 4, lower mold base; 5, spacer; 6, ejector plate assembly; 7, bottom plate; 8, ejector assembly; 9, upper exhaust plate; 10, lower exhaust plate; 11, drive end cover; 111, side ear hole; 112, middle hole; 113, outer circular hole; 12, parting surface; 13, protrusion; 14, fourth cooling channel; 15, first cooling channel; 16, diverter nozzle; 17, gate bushing; 18, second slag ladle; 19, first slag ladle; 20, first exhaust channel; 21, groove; 22, main channel; 23, third slag ladle; 24, Second exhaust channel; 25. Main channel ejector pin; 26. Outer hole ejector pin; 27. Side ear ejector pin; 28. Second slag bag ejector pin; 29. Exhaust block ejector pin; 30. Second cooling channel; 31. Third cooling channel; 32. First inlay pin; 33. Upper connecting assembly; 331. Upper connecting piece; 332. Upper through-tube; 34. Second inlay pin; 35. Lower connecting assembly; 351. Lower connecting piece; 352. Lower through-tube; 36. Upper inlay pin; 37. Third inlay pin; 38. Lower inlay pin; 39. Middle ejector pin; 40. Third slag bag ejector pin; 41. Fifth cooling channel; 42. Channel. DETAILED DESCRIPTION

[0040] In order to enable those skilled in the art to better understand the technical solution, the present invention is described in detail below in conjunction with embodiments. The description in this section is only exemplary and explanatory and should not have any limiting effect on the scope of protection of the present invention.

[0041] like Figure 1-14As shown, the specific scheme of this embodiment is: a drive end cover die-casting mold, including an upper mold base 3, a lower mold base 4, a pad 5, an ejector plate assembly 6, a bottom plate 7 and an ejector assembly 8, an upper mold base 3 and a lower mold base 4 are respectively provided with an upper mold core 2 and a lower mold core 1, the lower mold core 1 and the upper mold core 2 constitute a mold cavity with the drive end cover 11 as the parting surface 12, a diverter nozzle 16 and a gate sleeve 17 are provided between the lower mold core 1 and the upper mold core 2, and a main channel 22 is provided. The other side of the cavity of the lower mold core 1 is connected with a second slag bag 18 and a first slag bag 19, and the upper mold core 2 is also connected with the first slag bag 19; the second slag bag 18 flows between the upper exhaust plate 9 and the lower exhaust plate 10 through the first exhaust channel 20; cooling flow channels are provided in the upper mold base 3, the upper mold core 2 and the lower mold base 4, and the lower mold core 1; the ejector assembly 8 is provided on the lower mold core 1, the lower mold base 4 and the ejector plate assembly 6.

[0042] The design of the parting surface 12 in the present invention is crucial for the die-casting mold of the drive end cap. It not only ensures the precise fit of the two mold halves, enabling high-precision product replication, but also optimizes the flow path of the molten metal, improving the surface quality and uniformity of the internal structure. It also helps improve mold durability, facilitates mold maintenance and cleaning, supports the molding of complex structures, and effectively manages exhaust and slag slag, thereby significantly improving production efficiency and reducing production costs.

[0043] like Figure 6 As shown, as a preferred embodiment of the above embodiment, the ejector assembly 8 includes a main channel ejector 25 arranged below the main channel 22, an outer circular hole ejector 26, a side ear ejector 27 and a middle ejector 39 below the driving end cover 11; a second slag bag ejector 28 is arranged under the second slag bag 18, and an exhaust block ejector 29 is arranged under the lower exhaust plate 10.

[0044] The design of the ejector pin assembly 8 plays a crucial role in ensuring smooth demolding and mold quality for the drive end cap 11. This assembly includes several pins positioned specifically: Eight main runner pins 25, located below the main runner 22, ensure smooth and complete demolding of the solidified metal in the main runner; seven external hole pins 26, located below the external hole below the drive end cap 11, help ensure complete and undamaged demolding of the external circle; four side lug pins 27, located within the side lugs, ensure complete and undamaged demolding of the lugs; eight central ejector pins 39, located within the central region, provide precise ejection of the central region, which may contain complex structures; three second slag ladle pins 28, located below the second slag ladle 18; and two third slag ladle pins 40, located below the third slag ladle 23, facilitate ejection of the metal slag and keep the mold clean; and six exhaust block pins 29, located below the lower exhaust plate 10, ensure smooth and complete demolding of the exhaust block and avoid damage to the exhaust plate. The rational distribution of these ejector pins and their coordinated action ensures uniform force distribution across the mold during demolding, preventing product deformation or damage due to uneven force. This design also helps reduce production failures and scrap rates, as the ejector pins effectively remove metal slag and exhaust gases, preventing porosity and other casting defects. Precise ejector pin placement also helps shorten production cycles, enabling faster ejection and resetting operations and a more rapid production cycle.

[0045] like Figure 6-Figure 7 As shown, as a preferred embodiment of the above embodiment, the cooling channel includes a first cooling channel 15 arranged in the lower mold base 4 and the lower mold core 1; the upper mold base 3 and the upper mold core 2 are provided with a second cooling channel 30; the upper exhaust plate 9 and the lower exhaust plate 10 are respectively provided with a third cooling channel 31 and a fourth cooling channel 14; and a fifth cooling channel 41 is provided in the diverter nozzle 16.

[0046] The first cooling channel 15 is provided in the lower mold base 4 and the lower mold core 1, which helps to quickly extract heat from the mold and reduce the heat concentration area, thereby improving the cooling efficiency and the convenience of product demoulding.

[0047] The second cooling channel 30 is located in the upper mold base 3 and the upper mold core 2. Its function is to evenly disperse the heat on the upper part of the mold, ensure the cooling effect of the upper structure, and avoid product deformation caused by uneven cooling.

[0048] The third cooling channel 31 and the fourth cooling channel 14 are respectively arranged on the upper exhaust plate 9 and the lower exhaust plate 10. These two channels help to optimize the mold exhaust effect, reduce pores and other defects, and at the same time increase the cooling rate of the exhaust plate area, ensuring the durability and exhaust efficiency of the exhaust plate.

[0049] The fifth cooling channel 41 is located in the diverter nozzle 16, which helps to control the speed and temperature of the molten metal flowing into the mold, ensure that the molten metal evenly fills the mold cavity, reduce casting defects, and at the same time improve the cooling efficiency of the diverter nozzle area and extend the service life of the diverter nozzle.

[0050] The setting of each cooling channel is tailored to the cooling needs of a specific area of the mold. By precisely controlling the cooling process, it not only improves the molding quality of the product, but also extends the service life of the mold, ultimately achieving improved production efficiency and reduced production costs.

[0051] like Figure 10 and Figure 6 As shown, as a preferred embodiment of the above embodiment, the upper and lower sides of the upper mold core 2 are respectively connected to the third slag bag 23, and the side end of the third slag bag 23 is provided with a second exhaust channel 24; a third slag bag ejector 40 is provided under the third slag bag 23.

[0052] The present invention achieves efficient venting and slag management by meticulously arranging the first, second, and third slag ladles 19, 18, and 23, along with exhaust blocks, on the other side of the upper and lower mold cores 2 and 1, significantly improving die-casting efficiency and product quality. This coordinated approach not only optimizes die venting, effectively discharging gases generated during the die-casting process and preventing defects such as pores, but also reduces casting defects by collecting and discharging slag, improving the uniformity of the product's internal structure and surface quality. For drive end caps with complex structures, the rational arrangement of slag ladles and exhaust blocks better controls molding quality and meets the demands of complex structures.

[0053] like Figures 8-10 As shown, as a preferred embodiment of the above embodiment, the upper exhaust plate 9 and the lower exhaust plate 10 are respectively arranged at the side ends of the upper mold core 2 and the lower mold core 1; an exhaust block formed by a groove 21 and a protrusion 13 is respectively provided between the upper exhaust plate 9 and the lower exhaust plate 10, and the exhaust block is arranged to be a wavy structure, the wavy shape close to the lower mold core 1 and the upper mold core 2 is disconnected, and the wavy shape away from the lower mold core 1 and the upper mold core 2 is continuous.

[0054] By providing an upper exhaust plate 9 and a lower exhaust plate 10 at the side ends of the upper mold core 2 and the lower mold core 1, respectively, and providing an exhaust block formed by a groove 21 and a protrusion 13 between them, the exhaust system of the mold is further optimized. This design not only improves the exhaust efficiency, but also helps to reduce the residual gas in the mold, thereby reducing the risk of defects such as pores and inclusions in the casting. In addition, the design of the exhaust block also facilitates the maintenance and cleaning of the mold, improving the ease of use and production efficiency of the mold. The exhaust block adopts a wavy structure, and the wavy shape close to the upper mold core 2 and the lower mold core 1 is disconnected, and the wavy shape away from the upper mold core 2 and the lower mold core 1 is continuous. This design not only enhances the exhaust capacity of the exhaust block, but also helps to improve the cooling efficiency of the mold. The wavy structure increases the surface area of the exhaust block, thereby improving the gas discharge efficiency.

[0055] like Figures 8-10 As shown, as a preferred embodiment of the above embodiment, three second slag bags 18 are provided; the first slag bag 19, the second slag bag 18 and the third slag bag 23 are all arranged in a trapezoidal cross-section, wherein the second slag bag 18 in the upper middle part of the lower mold core 1 is provided in the first slag bag 19.

[0056] like Figure 11-13 As shown, as a preferred embodiment of the above embodiment, second inlay pins 34 are provided on both sides of the lower mold core 1, and first inlay pins 32 are provided on both sides of the upper mold core 2, the lower end of the first inlay pin 32 contacts the upper end of the second inlay pin 34 and is provided in the side ear hole 111 of the driving end cover 11; a lower inlay pin 38 is provided in the middle of the lower mold core 1, and an upper inlay pin 36 is provided in the middle of the upper mold core 2, the upper end of the lower inlay pin 38 contacts the lower end of the upper inlay pin 36 and is provided in the middle hole 112 of the driving end cover 11; a third inlay pin 37 is provided in the upper mold core 2, and the third inlay pin 37 is inserted into the outer circular hole 113 of the driving end cover 11.

[0057] The upper end of the first inlay pin 32 and the lower end of the second inlay pin 34 are respectively provided with an upper connecting component 33 and a lower connecting component 35. The upper connecting component 33 includes an upper through-tube 332, the lower end of the upper through-tube 332 is arranged in the first inlay pin 32, and the upper half of the first inlay pin 32 is arranged as a shell structure. The upper end of the upper through-tube 332 is connected to the upper connecting piece 331 after being inserted into the upper mold base 3, and the upper connecting piece 331 is connected to the water pipe; the lower connecting component 35 includes a lower through-tube 352, the upper end of the lower through-tube 352 is arranged in the second inlay pin 34, and the lower half of the second inlay pin 34 is set as a shell structure. The lower end of the lower through-tube 352 is connected to the lower connecting piece 351 after being inserted into the lower mold base 4, and the lower connecting piece 351 is connected to the water pipe. like Figure 14 As shown, as a preferred embodiment of the above embodiment, the water pipe connected to the upper connecting member 331 is arranged in the channel 42 of the upper mold base 3, and the channel 42 is Y-shaped.

[0058] Working principle: The working principle of the present invention is based on the design of a die-casting mold for a drive end cap. This mold achieves efficient and precise die-casting of the drive end cap 11 through the precise design of components such as the upper die base 3, lower die base 4, spacer 5, ejector plate assembly 6, base plate 7, and ejector assembly 8, as well as internal structures such as the diverter nozzle 16, sprue bushing 17, main channel 22, slag ladle, exhaust channel 42, and cooling channel. This mold design optimizes the flow path of the molten metal, improves cooling efficiency, enhances exhaust and slag ladle management, ensures uniform distribution and effective support of the ejector pins, and thus enhances product demolding efficiency and quality.

[0059] Working process: 1. Mold closing and metal liquid injection: The upper die base 3 and the lower die base 4 are closed, and the upper die core 2 and the lower die core 1 form a die cavity for driving the end cover 11 .

[0060] The molten metal is injected into the main channel 22 through the diverter nozzle 16 and the sprue bushing 17 and then flows into the mold cavity.

[0061] 2. Metal liquid filling and exhaust: The molten metal fills the mold cavity, and at the same time, the gas in the second slag bag 18 is guided to between the upper exhaust plate 9 and the lower exhaust plate 10 through the first exhaust channel 20 to remove the gas and impurities in the mold.

[0062] 3. Cooling process: The coolant in the cooling channel circulates through the first cooling channel 15 , the second cooling channel 30 , the third cooling channel 31 , the fourth cooling channel 14 and the fifth cooling channel 41 , thereby achieving rapid cooling of the mold.

[0063] 4. Slag bag management: The design of the second slag ladle 18 and the first slag ladle 19 helps to collect and discharge the slag generated during the die casting process, and the slag ladle management is further optimized by the slag ladle ejector.

[0064] 5. Function of ejector assembly 8: After the molten metal cools and solidifies, the ejector pin assembly 8 (including the main channel ejector pin 25, the outer hole ejector pin 26, the side ear ejector pin 27, the middle ejector pin 39, the second slag ladle ejector pin 28 and the exhaust block ejector pin 29) pushes the formed drive end cover 11 out of the mold.

[0065] 6. Demolding and product removal: The ejector pin assembly 8 pushes the drive end cover 11 out of the mold, completing the die-casting process.

[0066] The driving end cover 11 is precisely formed by inserting pins, and includes structures such as side ear holes 111, a middle hole 112 and an outer circular hole 113.

[0067] 7. Mould opening and circulation: The upper die base 3 and the lower die base 4 are opened, the formed drive end cover 11 is taken out, and the mold is ready for the next die-casting cycle.

[0068] Through the above working process, the die-casting mold of the present invention can efficiently and accurately produce high-quality drive end cover 11, while improving production efficiency and product performance through optimized cooling system and exhaust slag bag management.

[0069] It should be noted that, in this article, the terms include, comprise or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. Specific examples are used herein to illustrate the principles and implementation methods of the technical solution of the present invention. The above examples are only used to help understand the method of the present invention and its core idea. The above is only a preferred embodiment of the present invention. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should all be regarded as the scope of protection of the present invention.

Claims

1. A die-casting mold for a drive end cover, comprising an upper die base (3), a lower die base (4), a cushion block (5), an ejector plate assembly (6), a bottom plate (7) and an ejector assembly (8), characterized in that: An upper mold core (2) and a lower mold core (1) are respectively provided in the upper mold base (3) and the lower mold base (4), and the lower mold core (1) and the upper mold core (2) constitute a mold cavity with the driving end cover (11) as the parting surface (12). A diverter nozzle (16) and a gate sleeve (17) are provided between the lower mold core (1) and the upper mold core (2), and a main flow channel (22) is provided. The other side of the cavity of the lower mold core (1) is connected to the second slag bag (18) and the first slag bag (19), and the upper mold core (2) is also connected to the first slag bag (19); the second slag bag (18) flows between the upper exhaust plate (9) and the lower exhaust plate (10) through the first exhaust channel (20); a cooling flow channel is provided in the upper mold base (3), the upper mold core (2), the lower mold base (4), and the lower mold core (1); and the ejector assembly (8) is provided on the lower mold core (1), the lower mold base (4), and the ejector plate assembly (6).

2. A die-casting mold for a driving end cover according to claim 1, characterized in that: The ejector pin assembly (8) includes a main channel ejector pin (25) arranged below the main channel (22), an outer circular hole ejector pin (26), a side ear ejector pin (27) and a middle ejector pin (39) below the driving end cover (11); a second slag bag ejector pin (28) is arranged below the second slag bag (18), and an exhaust block ejector pin (29) is arranged below the lower exhaust plate (10).

3. The die-casting mold for the driving end cover according to claim 2, characterized in that: There are 8 main channel ejector pins (25); 7 outer hole ejector pins (26); 4 side ear ejector pins (27); 8 middle ejector pins (39); 3 second slag bag ejector pins (28); and 6 exhaust block ejector pins (29).

4. The die-casting mold for the driving end cover according to claim 1, characterized in that: The cooling channel comprises a first cooling channel (15) provided in the lower die base (4) and the lower die core (1); a second cooling channel (30) provided in the upper die base (3) and the upper die core (2); a third cooling channel (31) and a fourth cooling channel (14) provided on the upper exhaust plate (9) and the lower exhaust plate (10), respectively; and a fifth cooling channel (41) provided in the diverter nozzle (16).

5. The die-casting mold for the driving end cover according to claim 1, characterized in that: The upper and lower sides of the upper mold core (2) are respectively connected to the third slag bag (23), and the side end of the third slag bag (23) is provided with a second exhaust channel (24); and a third slag bag ejector pin (40) is provided under the third slag bag (23).

6. The die-casting mold for the driving end cover according to claim 1, characterized in that: The upper exhaust plate (9) and the lower exhaust plate (10) are respectively arranged at the side ends of the upper mold core (2) and the lower mold core (1); an exhaust block formed by a groove (21) and a protrusion (13) is respectively arranged between the upper exhaust plate (9) and the lower exhaust plate (10), and the exhaust block is arranged to have a wavy structure, the wavy shape between the lower mold core (1) and the upper mold core (2) is disconnected, and the wavy shape away from the lower mold core (1) and the upper mold core (2) is continuous.

7. A drive end cover die-casting mold according to any one of claims 1 or 5, characterized in that: Three second slag ladles (18) are provided; the first slag ladles (19), the second slag ladles (18) and the third slag ladles (23) are all arranged in a trapezoidal cross-section, wherein the second slag ladles (18) in the upper middle portion of the lower mold core (1) are provided within the first slag ladles (19).

8. The die-casting mold for the driving end cover according to claim 1, characterized in that: A second inlay pin (34) is provided on both sides of the lower mold core (1), and a first inlay pin (32) is provided on both sides of the upper mold core (2), the lower end of the first inlay pin (32) contacts the upper end of the second inlay pin (34) and is provided in the side ear hole (111) of the driving end cover (11); a lower inlay pin (38) is provided in the middle of the lower mold core (1), and an upper inlay pin (36) is provided in the middle of the upper mold core (2), the upper end of the lower inlay pin (38) contacts the lower end of the upper inlay pin (36) and is provided in the middle hole (112) of the driving end cover (11); a third inlay pin (37) is provided in the upper mold core (2), and the third inlay pin (37) is inserted into the outer circular hole (113) of the driving end cover (11).

9. The die-casting mold for the driving end cover according to claim 8, characterized in that: The upper end of the first inlay pin (32) and the lower end of the second inlay pin (34) are respectively provided with an upper connecting assembly (33) and a lower connecting assembly (35), the upper connecting assembly (33) includes an upper through pipe (332), the lower end of the upper through pipe (332) is arranged in the first inlay pin (32), the upper half of the first inlay pin (32) is provided as a shell structure, the upper end of the upper through pipe (332) is inserted through the upper mold base (3) and connected to the upper connecting piece (331), and the upper connecting piece (331) is connected to the water pipe; the lower connecting assembly (35) includes a lower through pipe (352), the upper end of the lower through pipe (352) is arranged in the second inlay pin (34), the lower half of the second inlay pin (34) is provided as a shell structure, the lower end of the lower through pipe (352) is inserted through the lower mold base (4) and connected to the lower connecting piece (351), and the lower connecting piece (351) is connected to the water pipe.

10. The die-casting mold for the driving end cover according to claim 9, characterized in that: The water pipe connected to the upper connecting piece (331) is arranged in the channel (42) of the upper mold base (3), and the channel (42) is Y-shaped.

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