Injection mold for gear box of automobile actuator

Abstract

The utility model discloses an injection mold of an automobile actuator gearbox, which comprises a mold cavity arranged at the upper end of a male mold plate and the lower end of a female mold plate, an upper sealing plate is arranged above the female mold plate, an injection nozzle is arranged at the center of the upper end of the upper sealing plate, and the injection nozzle is communicated with the mold cavity; the reserved cavity is formed in the female mold plate and located outside the mold cavity, the reserved cavity is arranged in a rectangular shape, a liquid inlet valve and a liquid outlet valve are arranged on one side of the female mold plate, the liquid inlet valve and the liquid outlet valve are fixedly connected with the female mold plate, and the liquid inlet valve and the liquid outlet valve communicate with the two ends of the reserved cavity correspondingly; according to the injection mold, the reserved cavity is formed in the female mold plate, cooling liquid is injected into the reserved cavity during injection molding, the cooling liquid flows in the reserved cavity, heat on the female mold plate is absorbed through the cooling liquid, heat dissipation of the injection mold is accelerated, a gear box subjected to injection molding is cooled and shaped more quickly, and the production efficiency of the injection mold is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile actuators, in particular to an injection mold of a gear box of an automobile actuator. Background Art

[0002] Gearbox is an important component widely used in mechanical transmission. It consists of two or more gears, including at least a driving gear with a certain diameter and a smaller gear connected to the driving mechanism. Injection molding is also called injection molding. It is a molding method that combines injection and molding. The advantages of injection molding are fast production speed, high efficiency, automated operation, a wide variety of colors, shapes from simple to complex, sizes from large to small, and precise product size. The product is easy to update and can be made into complex-shaped parts. Injection molding is suitable for mass production and complex-shaped products and other molding and processing fields. Injection molds are used in the production and preparation of automotive gearboxes.

[0003] The Chinese patent publication number is CN212795708U, and the authorization announcement date is March 26, 2021. An injection mold for producing an automotive gearbox includes: a lower mold, a mold core and an upper mold, the mold core is arranged above the lower mold, the upper mold is arranged above the mold core, and the bottom of the lower mold is provided with a lower pouring port; a first mold core and a second mold core are arranged in the mold core, the first mold core and the second mold core are arranged relatively, an upper mold body is arranged in the upper mold, a second pouring port is arranged above the upper mold body, and the second protrusion is inserted in the second lower inner groove, the first lower protrusion is arranged in the perforation, and the second lower protrusion is inserted in the second upper inner groove. The utility model optimizes the structure of the mold to realize the split setting of the lower mold, the mold core and the upper mold. The mold core also adopts a split setting. While ensuring its normal processing, it is also convenient for its later demoulding, and it can be partially replaced according to the loss of use, reducing the loss of the mold, saving costs, reducing the investment cost of the enterprise mold, and allowing it to better meet the needs of production.

[0004] After the injection is completed, the existing injection mold needs to be left still for a period of time to dissipate heat. Natural heat dissipation is used, which has low heat dissipation efficiency and takes a long time, reducing the production efficiency of the injection mold and cannot meet the use requirements. Utility Model Content

[0005] The purpose of the utility model is to provide an injection mold for an automobile actuator gearbox, so as to solve the problem in the above background technology that the existing injection mold needs to be left to stand for a period of time for heat dissipation after injection, and adopts natural heat dissipation, which has low heat dissipation efficiency and takes a long time, reduces the production efficiency of the injection mold, and cannot meet the use requirements.

[0006] To achieve the above purpose, the utility model provides the following technical solution: an injection mold for an automobile actuator gearbox, comprising a male mold plate and a female mold plate, and also comprising:

[0007] A mold cavity is arranged at the upper end of the male mold plate and the lower end of the female mold plate, and the mold cavities on the male mold plate and the female mold plate are arranged correspondingly, an upper sealing plate is arranged above the female mold plate, and the upper sealing plate is connected to the female mold plate by screws, an injection nozzle is arranged at the center of the upper end of the upper sealing plate, and the injection nozzle is connected to the upper sealing plate as a whole, and the injection nozzle is connected to the mold cavity;

[0008] A reserved cavity is arranged inside the mother template, and the reserved cavity is arranged outside the mold cavity. The reserved cavity is arranged in a rectangular shape. A liquid inlet valve and a liquid outlet valve are arranged on one side of the mother template, and the liquid inlet valve and the liquid outlet valve are fixedly connected to the mother template. The liquid inlet valve and the liquid outlet valve are respectively connected to the two ends of the reserved cavity.

[0009] Preferably, guide holes are provided at the upper end of the male template, four guide holes are provided, and the four guide holes are provided at the four corners of the male template, and guide columns are provided below the female template, four guide columns are provided, and one end of the guide column is fixedly connected to the female template, and the guide column and the guide hole are provided correspondingly.

[0010] Preferably, a lower sealing plate is provided below the male template, and the lower sealing plate is connected to the male template by screws, a bottom plate is provided below the lower sealing plate, and support columns are provided between the lower sealing plate and the bottom plate, four support columns are provided, and both ends of the support columns are fixedly connected to the lower sealing plate and the bottom plate respectively.

[0011] Preferably, a mounting hole is provided at the bottom of the mold cavity, at least six mounting holes are provided, and the mounting holes are equidistantly arranged at the bottom of the mold cavity, an ejector pin is provided inside the mounting hole, and the ejector pin is slidably connected to the male template, the ejector pin is arranged in a truncated cone shape, and the ejector pin is fitted with the male template.

[0012] Preferably, a ejector mounting plate is provided above the base plate, and the ejector mounting plate is provided below the lower sealing plate, a connecting rod is provided below the ejector, and one end of the connecting rod is threadedly connected to the ejector, the connecting rod is slidably connected to the lower sealing plate, and the other end of the connecting rod is connected to the base plate by screws, an electric push rod is provided between the base plate and the ejector mounting plate, and both ends of the electric push rod are fixedly connected to the base plate and the ejector mounting plate respectively.

[0013] Preferably, a slide groove is provided on the side walls of the four support columns, a slider is provided inside the slide groove, and the slider is slidably connected to the support column, and the slider is fixedly connected to the ejector mounting plate.

[0014] Preferably, the upper end of the male template and the lower end of the female template are both provided with grooves, four grooves are provided, and the grooves on the male template and the female template are provided correspondingly.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The utility model device is provided with a reserved cavity, a liquid inlet valve and a liquid outlet valve. The coolant is injected into the reserved cavity from the liquid inlet valve, and the coolant flows in the reserved cavity. The coolant is used to absorb the heat on the mother template. The coolant is discharged from the liquid outlet valve, and the coolant that absorbs the heat is discharged, so as to accelerate the heat dissipation of the mother template, so that the molded gear box is cooled and formed faster, and the production efficiency of the injection mold is improved;

[0017] 2. The utility model device is provided with an ejector mounting plate, an electric push rod, a connecting rod and an ejector. The electric push rod drives the ejector mounting plate to rise and fall. As the ejector mounting plate rises, the ejector is synchronously driven to rise and fall with the help of the connecting rod. The ejector is slidably connected to the male mold plate. The rising ejector applies thrust to the injection molded part in the mold cavity. There are multiple ejectors, and the multiple ejectors are synchronously extended and retracted, so that thrust can be applied from multiple positions at the same time, so as to better eject the injection-molded gear box. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a top view of the male template of the utility model;

[0020] Figure 3 This is a diagram showing the connection relationship between the ejector pin and the male mold plate of the utility model;

[0021] Figure 4 It is a cross-sectional view of the mother template of the utility model;

[0022] Figure 5 For the utility model Figure 1 A partial enlarged view of area A.

[0023] In the figure: 1. male mold plate; 2. female mold plate; 3. upper sealing plate; 4. injection nozzle; 5. groove; 6. mold cavity; 7. guide hole; 8. guide column; 9. liquid inlet valve; 10. liquid outlet valve; 11. lower sealing plate; 12. bottom plate; 13. ejector pin mounting plate; 14. electric push rod; 15. connecting rod; 16. ejector pin; 17. mounting hole; 18. reserved cavity; 19. support column; 20. slide groove; 21. slider. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] See also Figure 1-5 The utility model provides an embodiment: an injection mold of an automobile actuator gearbox, comprising a male mold plate 1 and a female mold plate 2, and further comprising:

[0026] A mold cavity 6 is arranged at the upper end of the male mold plate 1 and the lower end of the female mold plate 2, and the mold cavities 6 on the male mold plate 1 and the female mold plate 2 are arranged correspondingly, an upper sealing plate 3 is arranged above the female mold plate 2, and the upper sealing plate 3 is connected to the female mold plate 2 by screws, an injection nozzle 4 is arranged at the center of the upper end of the upper sealing plate 3, and the injection nozzle 4 is connected to the upper sealing plate 3 as a whole, and the injection nozzle 4 is connected to the mold cavity 6;

[0027] The reserved cavity 18 is arranged inside the mother template 2, and the reserved cavity 18 is arranged outside the mold cavity 6. The reserved cavity 18 is arranged in a rectangular shape. A liquid inlet valve 9 and a liquid outlet valve 10 are arranged on one side of the mother template 2, and the liquid inlet valve 9 and the liquid outlet valve 10 are fixedly connected to the mother template 2, and the liquid inlet valve 9 and the liquid outlet valve 10 are respectively connected to the two ends of the reserved cavity 18.

[0028] When in use: combine the mother template 2 with the male template 1, inject the injection plastic into the mold cavity 6 from the injection nozzle 4, and inject the coolant into the reserved cavity 18 from the liquid inlet valve 9. The coolant flows in the reserved cavity 18, and the heat on the mother template 2 is absorbed by the coolant. The coolant is discharged from the liquid outlet valve 10, and the coolant that absorbs the heat is discharged, so as to accelerate the cooling of the mother template 2 and improve the injection molding efficiency.

[0029] See also Figure 1 A guide hole 7 is arranged at the upper end of the male template 1, and there are four guide holes 7, and the four guide holes 7 are arranged at the four corners of the male template 1. A guide column 8 is arranged at the bottom of the female template 2, and there are four guide columns 8, and one end of the guide column 8 is fixedly connected to the female template 2. The guide column 8 is arranged corresponding to the guide hole 7. The guide hole 7 and the guide column 8 play a guiding role for the connected male template 1 and the female template 2, so as to ensure the precise combination of the female template 2 and the male template 1.

[0030] See also Figure 1 and Figure 2 A lower sealing plate 11 is provided below the male template 1, and the lower sealing plate 11 is connected to the male template 1 by screws. A bottom plate 12 is provided below the lower sealing plate 11, and a support column 19 is provided between the lower sealing plate 11 and the bottom plate 12. Four support columns 19 are provided, and both ends of the support columns 19 are fixedly connected to the lower sealing plate 11 and the bottom plate 12 respectively, and a supporting structure is formed by the lower sealing plate 11, the bottom plate 12 and the support columns 19.

[0031] See also Figure 2 and Figure 3 A mounting hole 17 is provided at the bottom of the mold cavity 6. There are at least six mounting holes 17, and the mounting holes 17 are equidistantly arranged at the bottom of the mold cavity 6. An ejector pin 16 is provided inside the mounting hole 17, and the ejector pin 16 is slidably connected to the male mold plate 1. The ejector pin 16 is arranged in a truncated cone shape, and the ejector pin 16 fits the male mold plate 1. The ejector pin 16 can be used to conveniently eject the gear box that has been injection molded in the mold cavity 6, so that the gear box can be unloaded conveniently.

[0032] See also Figure 1 and Figure 3 A pin mounting plate 13 is arranged above the bottom plate 12, and the pin mounting plate 13 is arranged below the lower sealing plate 11. A connecting rod 15 is arranged below the pin 16, and one end of the connecting rod 15 is threadedly connected to the pin 16. The connecting rod 15 is slidably connected to the lower sealing plate 11, and the other end of the connecting rod 15 is connected to the bottom plate 12 by screws. An electric push rod 14 is arranged between the bottom plate 12 and the pin mounting plate 13, and the two ends of the electric push rod 14 are respectively fixedly connected to the bottom plate 12 and the pin mounting plate 13. The pin mounting plate 13 is lifted and lowered by the electric push rod 14. As the pin mounting plate 13 is lifted and lowered, the pin 16 is extended and retracted. The multiple pins 16 are extended and retracted synchronously, and thrust can be applied from multiple positions at the same time, so as to better eject the injection-molded gearbox.

[0033] See also Figure 1 and Figure 5 A slide groove 20 is provided on the side walls of the four support columns 19, a slider 21 is provided inside the slide groove 20, and the slider 21 is slidably connected to the support column 19, and the slider 21 is fixedly connected to the ejector mounting plate 13. The slide groove 20 and the slider 21 play a guiding and limiting role for the lifted ejector mounting plate 13, ensuring that the ejector mounting plate 13 is lifted and lowered smoothly.

[0034] See also Figure 1 and Figure 2 The upper end of the male template 1 and the lower end of the female template 2 are both provided with grooves 5, and there are four grooves 5, and the grooves 5 on the male template 1 and the female template 2 are correspondingly arranged, and the grooves 5 are used to facilitate mold opening.

[0035] Working principle: the guide column 8 is aligned with the guide hole 7 and inserted, the female template 2 is combined and connected with the male template 1, the injection plastic is injected into the mold cavity 6 from the injection nozzle 4, and the coolant is injected into the reserved cavity 18 from the liquid inlet valve 9. The coolant flows in the reserved cavity 18, and the heat on the female template 2 is absorbed by the coolant. The coolant is discharged from the liquid outlet valve 10, and the coolant that absorbs the heat is discharged to accelerate the cooling of the injection molded part. After the injection molded part is cooled and finalized, the electric push rod 14 is driven to drive the ejector mounting plate 13 to rise. As the ejector mounting plate 13 rises, the ejector 16 rises, and the rising ejector 16 ejects the injection molded part in the mold cavity 6. The multiple ejectors 16 are synchronously extended and retracted, and thrust can be applied from multiple positions at the same time, so that the gear box that has been injection molded can be better ejected, the injection molded part can be removed faster, and the injection molding efficiency is improved.

[0036] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An injection mold for an automobile actuator gearbox, comprising a male mold plate (1) and a female mold plate (2), characterized in that: Also includes: A mold cavity (6) is arranged at the upper end of the male mold plate (1) and the lower end of the female mold plate (2), and the mold cavities (6) on the male mold plate (1) and the female mold plate (2) are arranged correspondingly, an upper sealing plate (3) is arranged above the female mold plate (2), and the upper sealing plate (3) and the female mold plate (2) are connected by screws, an injection nozzle (4) is arranged at the center of the upper end of the upper sealing plate (3), and the injection nozzle (4) and the upper sealing plate (3) are connected as a whole, and the injection nozzle (4) is arranged in communication with the mold cavity (6); A reserved cavity (18) is arranged inside the mother template (2), and the reserved cavity (18) is arranged outside the mold cavity (6), the reserved cavity (18) is arranged in a rectangular shape, a liquid inlet valve (9) and a liquid outlet valve (10) are arranged on one side of the mother template (2), and the liquid inlet valve (9) and the liquid outlet valve (10) are fixedly connected to the mother template (2), and the liquid inlet valve (9) and the liquid outlet valve (10) are respectively connected to the two ends of the reserved cavity (18).

2. The injection mold of an automobile actuator gearbox according to claim 1, characterized in that: A guide hole (7) is arranged at the upper end of the male template (1), and there are four guide holes (7), which are arranged at the four corners of the male template (1). A guide column (8) is arranged below the female template (2), and there are four guide columns (8), and one end of the guide column (8) is fixedly connected to the female template (2), and the guide column (8) is arranged corresponding to the guide hole (7).

3. The injection mold of the automotive actuator gearbox according to claim 1, characterized in that: A lower sealing plate (11) is arranged below the male template (1), and the lower sealing plate (11) is connected to the male template (1) by screws. A bottom plate (12) is arranged below the lower sealing plate (11), and a support column (19) is arranged between the lower sealing plate (11) and the bottom plate (12). Four support columns (19) are arranged, and two ends of the support column (19) are fixedly connected to the lower sealing plate (11) and the bottom plate (12) respectively.

4. The injection mold of the automotive actuator gearbox according to claim 3, characterized in that: The bottom of the mold cavity (6) is provided with a mounting hole (17), at least six mounting holes (17) are provided, and the mounting holes (17) are arranged at equal intervals at the bottom of the mold cavity (6), an ejector pin (16) is arranged inside the mounting hole (17), and the ejector pin (16) is slidably connected to the male mold plate (1), the ejector pin (16) is arranged in a truncated cone shape, and the ejector pin (16) is in close contact with the male mold plate (1).

5. The injection mold of the automotive actuator gearbox according to claim 4, characterized in that: A thimble mounting plate (13) is arranged above the bottom plate (12), and the thimble mounting plate (13) is arranged below the lower sealing plate (11). A connecting rod (15) is arranged below the thimble (16), and one end of the connecting rod (15) is threadedly connected to the thimble (16). The connecting rod (15) is slidably connected to the lower sealing plate (11), and the other end of the connecting rod (15) is connected to the bottom plate (12) by screws. An electric push rod (14) is arranged between the bottom plate (12) and the thimble mounting plate (13), and the two ends of the electric push rod (14) are fixedly connected to the bottom plate (12) and the thimble mounting plate (13), respectively.

6. The injection mold of the automotive actuator gearbox according to claim 3, characterized in that: A slide groove (20) is provided on the side walls of the four support columns (19), a slider (21) is provided inside the slide groove (20), and the slider (21) is slidably connected to the support column (19), and the slider (21) is fixedly connected to the ejector mounting plate (13).

7. The injection mold of an automobile actuator gearbox according to claim 1, characterized in that: The upper end of the male template (1) and the lower end of the female template (2) are both provided with grooves (5), four grooves (5) are provided, and the grooves (5) on the male template (1) and the female template (2) are provided correspondingly.

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