Die set for automobile tail door die

Abstract

The utility model relates to a mould frame for an automobile tail door mould, which comprises a bottom plate, guide pillar grooves are arranged at four corners of the bottom plate, a pressure groove is arranged at the center of the top of the bottom plate, and the side wall of the bottom plate is connected with an air injection nozzle communicated with the pressure groove. The multiple guide columns are installed in the guide column grooves in a one-to-one correspondence mode. The utility model relates to the technical field of die sets. According to the mold frame for the automobile tail door mold, a layer of air film can be generated between the mold and the bottom plate when the automobile tail door mold is placed on the bottom plate through the arranged air blowing assembly, so that the mold is prevented from being in direct contact with the bottom plate, meanwhile, the mold is supported, the friction force for moving the mold is very low, and the mold frame is very convenient to use. The position of the die can be easily adjusted, and alignment of the die and the bottom plate is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of mold frame technology, and in particular to a mold frame for automobile tailgate molds. Background Technology

[0002] Mold bases are an indispensable component in mold manufacturing, primarily used to support and secure the various parts of the mold. The design and manufacture of the mold base directly affect the overall performance and production efficiency of the mold. With the development of the mold industry, the prevalence of standard mold bases is continuously increasing, allowing mold manufacturers to choose the appropriate type of mold base according to their own needs to improve production efficiency and flexibility.

[0003] In the existing technology, because the tailgate of a car is large, the mold used for injection molding is also relatively large. Since the plastic part is cast in one piece, many forming structures need to be considered. Therefore, the mechanical moving parts are more numerous and complex than those of other molds, resulting in a large mold volume, more material used, and heavier weight. Thus, the tailgate mold of a car is heavier, which increases the difficulty of installing the mold on the mold frame and affects the installation efficiency of the mold. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a mold frame for automobile tailgate mold, so as to solve the technical problems mentioned in the background art.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] A mold frame for a car tailgate mold includes a base plate, guide post grooves are provided at the four corners of the base plate, a pressure groove is provided at the top center of the base plate, and an air injection nozzle connected to the side wall of the base plate and communicating with the pressure groove.

[0007] The guide pillars are provided in multiples and are installed one by one in the guide pillar groove;

[0008] The air blowing assembly includes a mounting platform and a plug. The mounting platform is fixedly connected to the pressure groove. The top of the mounting platform has multiple air blowing holes in a matrix. The bottom of the air blowing holes has a circular hole that penetrates the mounting platform. A limit ring is fixedly connected to the opening of the air blowing hole. A plug is slidably disposed in the air blowing hole to block the inner hole of the limit ring.

[0009] Furthermore, a space for air injection is left between the bottom of the mounting platform and the bottom wall of the pressure groove, and a support block for supporting the mounting platform is fixedly connected to the bottom wall of the pressure groove.

[0010] Furthermore, an air passage is formed between two adjacent support blocks, and multiple circular holes are distributed within the air passage.

[0011] Furthermore, a sealing gasket is fixedly connected to the bottom edge of the pressure groove, and the top of the sealing gasket contacts the bottom of the mounting platform.

[0012] Furthermore, the top of the plug is curved and protrudes to form a hemispherical portion. When the plug blocks the inner hole of the limiting ring, the dome surface of the hemispherical portion extends out of the limiting ring.

[0013] Furthermore, the bottom of the inner wall of the limiting ring is concave to form a curved surface that fits against the hemispherical portion.

[0014] Furthermore, a collar is fixedly connected to the bottom of the block, and a spring is fixedly connected between the top of the collar and the limiting ring.

[0015] In summary, this utility model has at least one of the following beneficial technical effects:

[0016] 1. A mold frame for a car tailgate mold, by means of an air blowing component, allows an air film to be generated between the mold and the base plate when the car tailgate mold is placed on the base plate, thereby avoiding direct contact between the mold and the base plate, and at the same time providing support for the mold. At this time, the friction of moving the mold will be very low, which can be used to easily adjust the position of the mold and facilitate the alignment of the mold with the base plate.

[0017] 2. The mold frame for a car tailgate mold has a hemispherical part. When the mold is placed on the base plate, the bottom of the mold will preferentially contact the hemispherical part. The smooth spherical surface can reduce friction damage by contacting the bottom of the mold, thereby effectively protecting the mold. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of a mold frame for an automobile tailgate mold according to the present invention.

[0020] Figure 2 This is an exploded view of a mold frame for a car tailgate mold according to the present invention.

[0021] Figure 3 This is a schematic diagram of the structure of the base plate of the mold frame for an automobile tailgate mold according to the present invention.

[0022] Figure 4 This is a schematic diagram of the air blowing component in the mold frame for an automobile tailgate mold according to this utility model.

[0023] In the diagram, 1. Base plate; 2. Guide post; 3. Air blowing assembly; 31. Mounting platform; 32. Block; 4. Guide post groove; 5. Pressure groove; 6. Air injection nozzle; 7. Air blowing hole; 8. Round hole; 9. Limiting ring; 10. Support block; 11. Sealing gasket; 12. Hemispherical part; 13. Collar; 14. Spring. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings.

[0025] Example:

[0026] Reference Figure 1 - Figure 4 The present invention discloses a mold frame for a car tailgate mold, including a base plate 1, guide post grooves 4 are provided at the four corners of the base plate 1, a pressure groove 5 is provided at the top center of the base plate 1, and an air injection nozzle 6 connected to the side wall of the base plate 1 and communicating with the pressure groove 5.

[0027] Guide pillars 2, there are multiple of them, and they are installed one by one in the guide pillar grooves 4;

[0028] The air blowing assembly 3 includes a mounting platform 31 and a blocking block 32. The mounting platform 31 is fixedly connected to the pressure groove 5. The top of the mounting platform 31 has multiple air blowing holes 7 arranged in a matrix. The bottom of the air blowing holes 7 has a circular hole 8 that penetrates the mounting platform 31. A limit ring 9 is fixedly connected to the opening of the air blowing hole 7. A blocking block 32 for blocking the inner hole of the limit ring 9 is slidably arranged inside the air blowing hole 7.

[0029] In this embodiment, observation Figure 1 It can be seen that by providing guide post grooves 4 at the four corners of the base plate 1, and installing guide posts 2 in the guide post grooves 4, guide elements can be used to ensure that the mold moves in a precise position and guide the mold stroke.

[0030] Because car tailgates are large, the molds used for injection molding them are also large. Since plastic parts are cast in one piece, many forming structures need to be considered. Therefore, the mechanical moving parts are more numerous and complex than those of other molds, resulting in a larger mold volume, more material used, and greater weight. Thus, car tailgate molds are heavier, which increases the difficulty of installing the mold on the mold frame and affects the installation efficiency of the mold.

[0031] Therefore, combining Figure 2 - Figure 4It can be observed that a pressure groove 5 is provided at the top center of the base plate 1, and an air injection nozzle 6 connected to the side wall of the base plate 1 is connected to the pressure groove 5. Then, a mounting platform 31 is fixedly connected in the pressure groove 5. Multiple air blowing holes 7 are provided in a matrix on the top of the mounting platform 31. A circular hole 8 is provided at the bottom of the air blowing hole 7, penetrating the mounting platform 31. A limit ring 9 is fixedly connected at the opening of the air blowing hole 7. A blocking block 32 for blocking the inner hole of the limit ring 9 is slidably provided in the air blowing hole 7. At this time, air is supplied to the air injection nozzle 6 by a high-pressure air pump, so that high-pressure gas is generated in the pressure groove 5. The high-pressure gas will enter the air blowing hole 7 through the circular hole 8. When the high-pressure gas is discharged through the air blowing hole 7, it pushes the blocking block 32 to move upward and block the inner hole of the limit ring 9, so that the air in the pressure groove 5 cannot be discharged.

[0032] When the tailgate mold is placed on the base plate 1, the mold is used to squeeze the block 32, causing the block 32 to retract into the air hole 7. This creates a gap in the inner ring of the limiting ring 9, which generates a high-pressure airflow at the opening of the corresponding air hole 7. The airflow blows onto the bottom of the mold to form an air film, preventing the mold from directly contacting the base plate 1 and providing support for the mold. At this time, the friction of moving the mold is very low, which can be used to easily adjust the position of the mold and facilitate the alignment of the mold with the base plate 1.

[0033] Once the mold and base plate 1 are aligned, the guide pillar 2 can be inserted into the guide pillar groove 4 through the alignment hole to install the guide pillar 2. This can effectively reduce the difficulty of mold installation and improve the efficiency of mold installation.

[0034] In a further preferred embodiment of this utility model, such as Figure 2 As shown, there is a space for air injection between the bottom of the mounting platform 31 and the bottom wall of the pressure groove 5, and a support block 10 for supporting the mounting platform 31 is fixedly connected to the bottom wall of the pressure groove 5.

[0035] An air passage is formed between two adjacent support blocks 10, and multiple circular holes 8 are distributed within the air passage.

[0036] In this embodiment, since the mounting platform 31 is installed in the pressure groove 5, and high-pressure air needs to enter the air blowing hole 7 in the mounting platform 31 through the pressure groove 5, a space for air intake needs to be left between the bottom of the mounting platform 31 and the pressure groove 5.

[0037] The existence of space reduces the support surface of the mounting platform 31, thereby increasing the pressure on the contact area and affecting the service life of the mounting platform 31. Figure 2It can be seen that a support block 10 for supporting the mounting platform 31 is fixedly connected to the bottom of the pressure groove 5, and the support blocks 10 are spaced apart, so that when the mounting platform 31 is installed in the pressure groove 5, it forms a series of air channels for gas flow, thereby improving the support effect on the mounting platform 31 while ensuring the stability of the air intake.

[0038] The support block 10 is set up so that it overlaps with the round hole 8 at the bottom of the air hole 7, which affects the air intake of the round hole 8 at that position and affects the blowing effect of the corresponding air hole 7. Therefore, an air passage is formed between two adjacent support blocks 10, and multiple round holes 8 are distributed in the air passage.

[0039] In a further preferred embodiment of this utility model, such as Figure 2 and Figure 3 As shown, a sealing gasket 11 is fixedly connected to the bottom edge of the pressure groove 5, and the top of the sealing gasket 11 contacts the bottom of the mounting platform 31.

[0040] In this embodiment, since the mounting platform 31 and the pressure groove 5 are separate components, an assembly gap will occur, leading to a risk of air leakage. Therefore, in Figure 2 and Figure 3 As can be seen, by fixing a sealing gasket 11 to the bottom edge of the pressure groove 5 and making the top of the sealing gasket 11 contact the bottom of the mounting platform 31, when the mounting platform 31 is installed in the pressure groove 5, the bottom of the mounting platform 31 will squeeze the sealing gasket 11 and deform it to improve the sealing performance. Subsequently, after high-pressure gas is injected into the pressure groove 5, the high-pressure gas will squeeze the side of the sealing gasket 11, making the contact between the sealing gasket 11 and the mounting platform 31 tighter, thereby further ensuring airtightness and effectively preventing air leakage.

[0041] In a further preferred embodiment of this utility model, such as Figure 4 As shown, the top of the blocking block 32 is curved and protrudes to form a hemispherical portion 12. When the blocking block 32 blocks the inner hole of the limiting ring 9, the spherical top surface of the hemispherical portion 12 extends out of the limiting ring 9.

[0042] The bottom of the inner wall of the limiting ring 9 is concave to form a curved surface that fits against the hemispherical portion 12.

[0043] In this embodiment, since the plug 32 not only needs to block the inner hole of the limiting ring 9, but also needs to be compressed into the air blowing hole 7 when it contacts the bottom of the mold, in order to avoid frictional damage when the top of the plug 32 contacts the bottom of the mold, the plug 32 is designed to... Figure 4The top is curved and protrudes to form a hemispherical part 12. When the block 32 blocks the inner hole of the limiting ring 9, the spherical top surface of the hemispherical part 12 extends out of the limiting ring 9. At this time, when the mold is placed on the base plate 1, the bottom of the mold will preferentially contact the hemispherical part 12. The smooth spherical surface can reduce friction damage by contacting the bottom of the mold, thereby effectively protecting the mold.

[0044] And in Figure 4 It can also be found that by making the bottom of the inner wall of the limiting ring 9 concave with curvature to form a curved surface that fits with the hemisphere 12, the fit performance of the hemisphere 12 when it contacts the limiting ring 9 can be better, thereby further improving the blocking effect and preventing air leakage before the mold and the base plate 1 are installed.

[0045] In a further preferred embodiment of this utility model, such as Figure 4 As shown, a collar 13 is fixedly connected to the bottom of the blocking block 32, and a spring 14 is fixedly connected between the top of the collar 13 and the limiting ring 9.

[0046] In this embodiment, by fixing a collar 13 to the bottom of the block 32 and fixing a spring 14 between the top of the collar 13 and the limiting ring 9, the block 32 can be pushed by the spring 14 to contact the bottom wall of the air hole 7 when there is no high-pressure gas in the air hole 7. This prevents the block 32 from shaking and colliding with the inner wall of the air hole 7, thus effectively protecting the mold frame.

[0047] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A mold frame for a car tailgate mold, characterized in that, It includes a base plate (1), with guide grooves (4) at each of the four corners of the base plate (1), a pressure groove (5) at the top center of the base plate (1), and an air injection nozzle (6) connected to the side wall of the base plate (1) and communicating with the pressure groove (5). Guide pillars (2) are provided in multiple ways and are installed in guide pillar grooves (4) one by one; The air blowing assembly (3) includes a mounting platform (31) and a plug (32). The mounting platform (31) is fixedly connected to the pressure groove (5). The top of the mounting platform (31) is provided with a matrix of multiple air blowing holes (7). The bottom of the air blowing holes (7) is provided with a circular hole (8) that penetrates the mounting platform (31). A limit ring (9) is fixedly connected to the opening position of the air blowing hole (7). A plug (32) for blocking the inner hole of the limit ring (9) is slidably arranged inside the air blowing hole (7).

2. The mold frame for an automobile tailgate mold according to claim 1, characterized in that, There is a space for air injection between the bottom of the mounting platform (31) and the bottom wall of the pressure groove (5), and a support block (10) for supporting the mounting platform (31) is fixedly connected to the bottom wall of the pressure groove (5).

3. The mold frame for an automobile tailgate mold according to claim 2, characterized in that, An air passage is formed between two adjacent support blocks (10), and multiple circular holes (8) are distributed within the air passage.

4. The mold frame for an automobile tailgate mold according to claim 3, characterized in that, A sealing gasket (11) is fixedly connected to the bottom edge of the pressure groove (5), and the top of the sealing gasket (11) contacts the bottom of the mounting platform (31).

5. The mold frame for an automobile tailgate mold according to claim 4, characterized in that, The top of the plug (32) is curved and protrudes to form a hemispherical part (12). When the plug (32) blocks the inner hole of the limiting ring (9), the top surface of the hemispherical part (12) extends out of the limiting ring (9).

6. The mold frame for an automobile tailgate mold according to claim 5, characterized in that, The bottom of the inner wall of the limiting ring (9) is concave to form a curved surface that fits against the hemisphere (12).

7. The mold frame for an automobile tailgate mold according to claim 6, characterized in that, The bottom of the block (32) is fixedly connected to a collar (13), and the top of the collar (13) is fixedly connected to the limiting ring (9) by a spring (14).

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