Spraying mechanism in die-casting die of automobile aluminum alloy speed reducer shell

Abstract

The utility model belongs to the technical field of die-casting machining, and particularly relates to an automobile aluminum alloy speed reducer shell die-casting die inner spraying mechanism which comprises a base, a lower die and a support are arranged at the top of the base, a hydraulic assembly is arranged on the support, an upper die assembly is arranged on the hydraulic assembly, and the upper die assembly comprises an upper die body connected with the hydraulic assembly. Forming surfaces with different convex points are arranged on the upper die body, a first connecting plate is arranged at the top of the upper die body, a first sliding groove is formed in the first connecting plate, a moving assembly is arranged in the first sliding groove, a second connecting plate is arranged on the moving assembly, a second sliding groove is formed in the second connecting plate, and an elastic compensation assembly is arranged in the second sliding groove; and a first connecting rod is arranged on the elastic compensation assembly. According to the device, self-adaptive adjustment can be conducted according to changes of a forming face, it is guaranteed that the spraying head and the forming face keep the optimal spraying distance all the time, a release agent is evenly sprayed, meanwhile, the structure is simple, maintenance is convenient and fast, and the effect of saving cost is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of die-casting processing, and specifically relates to a spraying mechanism in a die-casting mold for a housing of an automobile aluminum alloy reducer. Background Art

[0002] During the die-casting production of automotive aluminum alloy reducer housings, uniform application of release agent is crucial for ensuring product quality and production efficiency. Currently, existing in-die spraying technologies for automotive aluminum alloy reducer housings, such as the in-die spraying mechanism described in Authorization Publication No. CN209239007U, utilize multiple nozzles at varying heights to apply release agent to the raised molding surface of the slider core (i.e., the upper die).

[0003] However, this traditional design approach presents numerous challenges. First, ensuring that the multiple nozzles accurately cover all bumps on the slider core requires precise calculation of each nozzle's position and angle, significantly increasing the complexity and difficulty of the design. This process also requires extensive simulations and experiments, consuming significant time and effort.

[0004] Secondly, multiple nozzles mean more maintenance points. During ongoing die-casting production, nozzles are prone to wear and clogging, requiring regular inspection and replacement. Numerous nozzles make maintenance cumbersome and complex, increasing labor costs and potentially impacting production schedules.

[0005] Furthermore, during the actual production process, if the spraying effect is found to be unsatisfactory, adjustments must be made. For designs with multiple nozzles, it may be necessary to adjust the position, angle, or spray volume of each nozzle one by one. This is both time-consuming and labor-intensive, seriously affecting production efficiency, and it is difficult to guarantee that the spraying effect after adjustment will reach the ideal state.

[0006] Furthermore, the design and manufacture of multiple printheads requires high initial investment costs. Not only do they require the purchase of multiple printheads and their corresponding control systems, but the entire spray system also requires complex layout and installation. Furthermore, additional printheads also mean higher release agent consumption and higher energy costs, which undoubtedly increases production costs and reduces the company's economic benefits.

[0007] To this end, we proposed a spraying mechanism inside the die-casting mold of an automotive aluminum alloy reducer housing. The device can adaptively adjust according to changes in the molding surface, ensuring that the nozzle always maintains the optimal spraying distance from the molding surface, so that the release agent is sprayed evenly. At the same time, it has a simple structure and is easy to maintain, achieving the effect of cost savings. Utility Model Content

[0008] The purpose of this utility model is to provide a spraying mechanism inside the die-casting mold of an automobile aluminum alloy reducer housing. The device can be adaptively adjusted according to changes in the molding surface to ensure that the nozzle always maintains an optimal spraying distance from the molding surface, so that the release agent is sprayed evenly. At the same time, it has a simple structure and is easy to maintain, thereby achieving the effect of cost saving.

[0009] The technical solutions adopted in this application are as follows:

[0010] A spraying mechanism in a die-casting mold for an automotive aluminum alloy reducer housing comprises a base, a lower mold and a bracket are provided on the top of the base, a hydraulic assembly is provided on the bracket, and an upper mold assembly is provided on the hydraulic assembly;

[0011] The upper mold assembly includes an upper mold body connected to the hydraulic assembly, the upper mold body is provided with a molding surface with different convex points, and a first connecting plate is provided on the top of the upper mold body, a first sliding groove is provided on the first connecting plate, a moving assembly is provided inside the first sliding groove, a second connecting plate is provided on the moving assembly, a second sliding groove is provided on the second connecting plate, an elastic compensation assembly is provided inside the second sliding groove, a first connecting rod is provided on the elastic compensation assembly, a nozzle for spraying a release agent is provided at the bottom of the first connecting rod, and a roller is rotatably provided on the outer side of the first connecting rod;

[0012] A second connecting rod is provided on one side of the upper mold body, and a slide plate matching the forming surface is installed on one end of the second connecting rod away from the upper mold body, and the bottom of the slide plate is in contact with the roller.

[0013] Furthermore, the hydraulic assembly includes a hydraulic cylinder arranged on the bracket, and the telescopic end of the hydraulic cylinder is connected to the upper mold body.

[0014] Furthermore, the moving component includes a motor arranged on the first connecting plate, and the output end of the motor is equipped with a threaded rod that rotates inside the first slide groove. A threaded sleeve is sleeved on the threaded rod, and one side of the threaded sleeve is connected to the second connecting plate.

[0015] Furthermore, the elastic compensation component includes a fixed shaft arranged inside the second sliding groove, a slider and a spring are sleeved on the fixed shaft, one side of the slider is connected to the spring, and one side of the slider is connected to the first connecting rod.

[0016] Furthermore, the sliding block matches the second sliding groove.

[0017] Furthermore, a connecting pipe is provided on the outside of the nozzle, and the connecting pipe is connected to the release agent carrying box on the outside.

[0018] The technical effects achieved by this utility model are:

[0019] First, the hydraulic component drives the upper mold body to move downward so that it overlaps with the lower mold to die-cast the aluminum alloy reducer housing. After the die-casting is completed, the hydraulic component drives the upper mold body to move upward to its original position, and then the release agent is sprayed on the molding surface through the nozzle. At the same time, the moving component is started, and the moving component drives the nozzle to move, so that the mold release agent is fully sprayed on the molding surface. At the same time, the roller is driven to move on the sliding plate during movement. The elastic compensation component allows the nozzle to adaptively adjust according to the changes in the molding surface to ensure that the nozzle always maintains the optimal spraying distance with the molding surface, so that the release agent is sprayed evenly. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic structural diagram of the utility model as a whole;

[0021] Figure 2 This is a split diagram of the utility model;

[0022] Figure 3 This utility model Figure 2 Schematic diagram of the structure of A;

[0023] Figure 4 This utility model Figure 2 Schematic diagram of the structure of B.

[0024] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0025] 1. Base; 2. Lower mold; 3. Bracket; 4. Upper mold body; 5. Molding surface; 6. First connecting plate; 7. First slide; 8. Second connecting plate; 9. Second slide; 10. First connecting rod; 11. Nozzle; 12. Roller; 13. Second connecting rod; 14. Slide plate; 15. Hydraulic cylinder; 16. Motor; 17. Threaded rod; 18. Threaded sleeve; 19. Fixed shaft; 20. Slider; 21. Spring. DETAILED DESCRIPTION

[0026] In order to make the purpose and advantages of this utility more clear, the utility is described in detail below with reference to the embodiments. It should be understood that the following text is only used to describe one or several specific implementation methods of this utility and does not strictly limit the scope of protection specifically requested by this utility.

[0027] like Figure 1-4 As shown, the technical solution adopted by the present invention is as follows: a spraying mechanism in the die-casting mold of an automobile aluminum alloy reducer housing, comprising a base 1, a lower mold 2 and a bracket 3 are provided on the top of the base 1, a hydraulic assembly is provided on the bracket 3, and an upper mold assembly is provided on the hydraulic assembly;

[0028] The upper mold assembly includes an upper mold body 4 connected to the hydraulic assembly, the upper mold body 4 is provided with a molding surface 5 with different convex points, and a first connecting plate 6 is provided on the top of the upper mold body 4, a first chute 7 is provided on the first connecting plate 6, a moving assembly is provided inside the first chute 7, a second connecting plate 8 is provided on the moving assembly, a second connecting plate 8 is provided on the second chute 9, an elastic compensation assembly is provided inside the second chute 9, a first connecting rod 10 is provided on the elastic compensation assembly, a nozzle 11 for spraying a release agent is provided at the bottom of the first connecting rod 10, and a roller 12 is rotatably provided on the outer side of the first connecting rod 10;

[0029] A second connecting rod 13 is provided on one side of the upper mold body 4 . A slide plate 14 matching the forming surface 5 is installed at one end of the second connecting rod 13 away from the upper mold body 4 , and the bottom of the slide plate 14 is in contact with the roller 12 .

[0030] The hydraulic assembly includes a hydraulic cylinder 15 provided on the bracket 3 , the telescopic end of the hydraulic cylinder 15 is connected to the upper mold body 4 , and the upper mold body 4 is driven to move up and down by the hydraulic cylinder 15 .

[0031] At the same time, the moving component includes a motor 16 arranged on the first connecting plate 6, and the output end of the motor 16 is equipped with a threaded rod 17 that rotates inside the first slide groove 7. A threaded sleeve 18 is sleeved on the threaded rod 17, and one side of the threaded sleeve 18 is connected to the second connecting plate 8. The motor 16 drives the threaded rod 17 to rotate, so that the threaded rod 17 drives the threaded sleeve 18 to move the second connecting plate 8, thereby moving the nozzle 11.

[0032] The elastic compensation component includes a fixed shaft 19 arranged inside the second slide groove 9, and a slider 20 and a spring 21 are sleeved on the fixed shaft 19. One side of the slider 20 is connected to the spring 21, and one side of the slider 20 is connected to the first connecting rod 10.

[0033] When encountering a molding surface 5 with different convex points, the elastic force of the spring 21 drives the first connecting rod 10 to make the roller 12 fit tightly with the slide plate 14, thereby performing displacement compensation, so that the nozzle 11 can be adaptively adjusted according to the changes in the molding surface 5, ensuring that the nozzle 11 always maintains the optimal spraying distance with the molding surface 5, so that the release agent is sprayed evenly.

[0034] The slider 20 matches the second chute 9 , and matching here means that the slider 20 can move smoothly in the second chute 9 without getting stuck.

[0035] A connecting pipe is provided on the outside of the nozzle 11, and the connecting pipe is connected to the external release agent carrying box. The release agent inside the carrying box enters the nozzle 11 through the connecting pipe, so that the release agent is sprayed out.

[0036] It should be noted that a water pump is provided on the release agent carrying box, and the water pump provides power to spray the release agent from the nozzle 11. This belongs to the prior art and will not be described in detail here.

[0037] For example, the spraying mechanism in the die-casting mold of the automobile aluminum alloy reducer housing described in the authorization announcement number CN209239007U is provided with multiple nozzles 11 of different heights, so as to spray the release agent on the convex molding surface 5 of the slider 20 core (that is, the upper mold). Although this method can spray the release agent, it has several problems:

[0038] First, designing multiple nozzles 11 of different heights requires precise calculation of the position and angle of each nozzle 11 to ensure that they can accurately cover all the bumps on the slider 20. This increases the complexity and difficulty of the design.

[0039] Second, multiple nozzles 11 mean more maintenance points, including regular inspection and replacement of worn parts, which increases the complexity and cost of maintenance.

[0040] 3. During the production process, if the spraying effect needs to be adjusted, the position, angle or spraying amount of each nozzle 11 may need to be adjusted one by one, which is both time-consuming and labor-intensive.

[0041] Fourth, the design and manufacture of multiple nozzles 11 require higher initial investment costs. Additional nozzles 11 also mean higher release agent consumption and higher energy costs.

[0042] Compared with the automotive aluminum alloy reducer housing die-casting mold spraying mechanism described in the authorization announcement number CN209239007U, this patent has the following significant advantages:

[0043] 1. Design simplification: This patent uses a movable single nozzle 11 combined with an elastic compensation component, eliminating the need to accurately calculate the positions and angles of multiple nozzles 11 of different heights as in the previous embodiment, greatly reducing the complexity and difficulty of the design and reducing the calculation and debugging work during the design process.

[0044] 2. Easy maintenance: This patent only requires maintenance of one nozzle 11 and its related components. Compared with the complex maintenance work of multiple nozzles 11, it significantly reduces the number of maintenance points, reduces the complexity and cost of maintenance, and saves manpower and material resources.

[0045] 3. Efficient adjustment: During the production process, if the spraying effect needs to be adjusted, this patent only needs to adjust the moving component and the elastic compensation component. There is no need to process the position, angle or spraying amount of multiple nozzles 11 one by one. The operation is simple and fast, saving time and effort, and can adapt to changes in production needs more quickly.

[0046] 4. Cost Savings: This patent avoids the high initial investment required to design and manufacture multiple nozzles 11, reducing equipment costs. Furthermore, the use of a single nozzle 11 reduces the release agent consumption and energy costs associated with additional nozzles 11, helping to improve the economic benefits of production.

[0047] The working principle of the utility model is as follows: first, the upper mold body 4 is driven downward by the hydraulic component to overlap with the lower mold 2 for die-casting of the aluminum alloy reducer housing. After the die-casting is completed, the hydraulic component drives the upper mold body 4 to move upward to its original position, and then the release agent is sprayed on the molding surface 5 through the nozzle 11. At the same time, the moving component is started, and the moving component drives the nozzle 11 to move, so as to fully spray the molding surface 5 with the release agent. At the same time, it drives the roller 12 to move on the sliding plate during movement. The nozzle 11 can be adaptively adjusted according to the changes of the molding surface 5 through the elastic compensation component to ensure that the nozzle 11 always maintains the best spraying distance with the molding surface 5, so that the release agent is sprayed evenly. The device can be adaptively adjusted according to the changes of the molding surface 5, ensuring that the nozzle 11 always maintains the best spraying distance with the molding surface 5, so that the release agent is sprayed evenly. At the same time, it has a simple structure and convenient maintenance, thereby achieving the effect of cost saving.

[0048] The above description is only a preferred embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications should also be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this application shall be implemented in accordance with conventional means in the art unless otherwise specified or limited.

Claims

1. A spray coating mechanism in a die-casting mold for an automobile aluminum alloy reducer housing, comprising a base (1), a lower mold (2) and a bracket (3) disposed on the top of the base (1), a hydraulic assembly disposed on the bracket (3), and an upper mold assembly disposed on the hydraulic assembly; Its characteristics are: The upper mold assembly includes an upper mold body (4) connected to the hydraulic assembly, a molding surface (5) with different convex points is provided on the upper mold body (4), and a first connecting plate (6) is provided on the top of the upper mold body (4), a first sliding groove (7) is provided on the first connecting plate (6), a moving assembly is provided inside the first sliding groove (7), a second connecting plate (8) is provided on the moving assembly, a second sliding groove (9) is provided on the second connecting plate (8), an elastic compensation assembly is provided inside the second sliding groove (9), a first connecting rod (10) is provided on the elastic compensation assembly, a nozzle (11) for spraying a release agent is provided at the bottom of the first connecting rod (10), and a roller (12) is rotatably provided on the outer side of the first connecting rod (10); A second connecting rod (13) is provided on one side of the upper mold body (4), and a slide plate (14) matching the forming surface (5) is installed at one end of the second connecting rod (13) away from the upper mold body (4), and the bottom of the slide plate (14) is in contact with the roller (12).

2. The internal spraying mechanism for die-casting of an automotive aluminum alloy reducer housing according to claim 1, characterized in that: The hydraulic assembly comprises a hydraulic cylinder (15) arranged on the bracket (3), and the telescopic end of the hydraulic cylinder (15) is connected to the upper mold body (4).

3. The internal spraying mechanism for die-casting of an automotive aluminum alloy reducer housing according to claim 1, characterized in that: The moving assembly includes a motor (16) arranged on the first connecting plate (6), an output end of the motor (16) is provided with a threaded rod (17) that rotates inside the first sliding groove (7), a threaded sleeve (18) is sleeved on the threaded rod (17), and one side of the threaded sleeve (18) is connected to the second connecting plate (8).

4. The internal spraying mechanism for die-casting of an automotive aluminum alloy reducer housing according to claim 1, characterized in that: The elastic compensation component includes a fixed shaft (19) arranged inside the second sliding groove (9), a slider (20) and a spring (21) are sleeved on the fixed shaft (19), one side of the slider (20) is connected to the spring (21), and one side of the slider (20) is connected to the first connecting rod (10).

5. The spray coating mechanism inside the die-casting mold of the automotive aluminum alloy reducer housing according to claim 4, characterized in that: The sliding block (20) matches the second sliding groove (9).

6. The internal spraying mechanism for die-casting of an automotive aluminum alloy reducer housing according to claim 1, characterized in that: A connecting pipe is provided on the outside of the spray head (11), and the connecting pipe is connected to the outer release agent carrying box.

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