Thin-wall forming die

Abstract

The utility model discloses a thin-wall forming die. Comprising a panel, an upper mold, a lower mold, an ejector plate and a bottom plate, an upper mold core and a lower mold core are arranged on the upper mold and the lower mold respectively, an exhaust insert is arranged on a lower mold core insert, and the air trapping problem is solved. The ejection mechanism comprises an inclined ejection assembly and an ejector pin, and the inclined ejection assembly acts on a product rib position and is matched with the ejector pin to eject a product. The ejector plate is stable in structure, the bottom plate is provided with limiting and guiding components, the lower die is reasonably connected with the upper die, and die precision and stability are guaranteed. The panel and the bottom plate are provided with heat insulation plates, and the lower heat insulation plate is provided with related parts, so that the mold performance is improved, heat transfer is reduced, the service life of equipment is prolonged, production efficiency and product quality are improved, and large-batch production requirements of thin-wall products are met.

Description

Technical Field

[0001] The utility model relates to the field of molding and injection molding, in particular to a thin-wall molding mold. Background Art

[0002] Portable industrial communications equipment places high demands on the housing, requiring continuous structural optimization, including lightweighting of less critical areas, thickness reduction, and material changes. During the injection molding process for thin-walled products, the unique structural characteristics of these products can lead to problems such as warping, glue deficiency, air entrapment, and burrs. Furthermore, after injection molding, due to the extremely thin walls, traditional ejectors can easily break the product. The need for large-scale production demands stability and consistency in mass-produced products, necessitating urgent solutions. Utility Model Content

[0003] Purpose of the utility model: In order to overcome the above shortcomings, the purpose of the utility model is to provide a thin-walled molding mold, and use a high-speed injection molding machine in combination with the thin-walled molding mold. By providing a group of exhaust inserts in the lower mold core, the problem that trapped air cannot be discharged due to high-speed injection molding and the trapped air is discharged through the gaps between the inserts is solved. At the same time, a pair of inclined ejector components are designed. The inclined ejector components act on the ribs on both sides of the product. Because the contact area on the ribs is relatively large, the force here is uniform during ejection, which can reduce stress concentration. Combined with the traditional ejector, the product is ejected to ensure that the ejected product is not damaged.

[0004] Technical solution: The utility model provides a thin-walled molding mold including a panel, an upper mold, a lower mold, an ejector plate, and a bottom plate; the panel, upper mold, lower mold, ejector plate, and bottom plate are arranged in sequence, the upper mold is connected to an upper mold core on the side close to the lower mold, and the lower mold is connected to a lower mold core on the side close to the upper mold. The lower mold core is provided with an insert, and a group of exhaust inserts are provided in the insert. The exhaust inserts are arranged at intervals, and there are gaps between the exhaust inserts. The gaps are used to exhaust air during injection molding. The ejector plate is provided with an ejector mechanism, and the ejector mechanism is passed through the lower mold. The output ends of the upper mold, lower mold, and ejector mechanism are abutted to form a mold cavity. The product is injection molded in the mold cavity. When the mold is opened, the ejector mechanism presses the product to separate the product from the lower mold. A group of exhaust inserts are provided in the insert of the lower mold core. These exhaust inserts are arranged at intervals and there are gaps between them. During the injection molding process, the gap can effectively discharge air, prevent the occurrence of air entrapment, and ensure the molding quality of the product. The ejector plate is equipped with an ejector mechanism. When the mold is opened, the ejector mechanism can press the product to separate the product from the lower mold core, facilitate product removal, and improve production efficiency.

[0005] Furthermore, in a thin-walled molding die of the present application, the exhaust inserts are blade-shaped and arranged in sequence at intervals, and an opening is provided in the middle of the exhaust inserts. The opening is provided in the middle of the exhaust inserts, so that trapped air is more easily discharged during the injection molding process.

[0006] Furthermore, in a thin-walled molding mold in the present application, the ejector plate includes a pair of square irons, an ejector base plate, an ejector panel, and a side plate. The square irons and the ejector base plate are arranged on the base plate, the ejector base plate is arranged between the two square irons, the two square irons are connected by the side plate, the ejector base plate is provided with an ejector panel on the side away from the base plate, and both the ejector base plate and the ejector panel are provided with through holes. The square irons provide stable support for the ejector base plate, ensuring that the ejection mechanism does not shake or deflect during operation. The combination of the ejector base plate and the ejector panel provides space for the installation and movement of the ejection mechanism. The two square irons are connected by the side plate, which enhances the overall structural stability of the ejector plate and can withstand the pressure during the injection molding process and the force of the ejection mechanism.

[0007] Furthermore, in a thin-walled molding die in the present application, the ejection mechanism includes a pair of inclined ejector assemblies, the inclined ejector assembly including an inclined ejector seat, an inclined ejector guide block, and an inclined ejector support. The inclined ejector seat is installed in a groove corresponding to the ejector base plate, the inclined ejector guide block is provided in a groove corresponding to the side of the lower die away from the panel, and the inclined ejector support is T-shaped, installed in the inclined ejector seat, passed through the inclined ejector guide block and the inclined hole provided on the lower die, and slides along the inclined hole. The inclined ejector support is T-shaped and can slide along the inclined hole. This design enables the inclined ejector support to move according to a predetermined angle and trajectory during the ejection process, accurately act on the product, and achieve smooth separation of the product from the mold.

[0008] Furthermore, in a thin-walled forming mold of the present application, the end portion of the inclined support connecting to the inclined support seat is in an I-shape, the inclined support seat is provided with a convex transverse groove, and the I-shaped end portion of the inclined support is disposed in the convex transverse groove of the inclined support seat. The inclined support can move in the convex transverse groove.

[0009] Furthermore, in a thin-walled molding die in the present application, the ejection mechanism further includes a group of ejectors, a group of springs, and a group of first guide pillars. The ejectors are mounted on an ejector base plate, and the first guide pillars are mounted on the ejector base plate. The springs correspond to the first guide pillars and are sleeved in the first guide pillars. One end of the spring contacts the ejector panel, and the other end contacts the lower mold. The ejector is directly mounted on the ejector base plate and is used to directly eject the product when the mold is opened. The first guide pillars are also mounted on the ejector base plate to provide guidance for the movement of the ejector, ensuring that the ejector maintains linear motion during the ejection process, thereby improving the accuracy and stability of the ejection. The springs correspond to the first guide pillars and are sleeved in the first guide pillars. One end of the spring contacts the base plate, and the other end contacts the lower mold. During the ejection process, the springs can serve as a buffer and reset.

[0010] Furthermore, in a thin-walled molding die disclosed herein, the base plate is provided with a set of limiting cylinders, a set of second guide cylinders, and a set of limiting pins. The limiting cylinders are provided through the ejector base plate and ejector faceplate, with the ends of the limiting cylinders away from the base plate contacting the lower mold. The second guide cylinders are provided through the ejector base plate, ejector faceplate, and lower mold in sequence, and the positioning pins are provided through the ejector base plate and ejector faceplate in sequence. The limiting cylinders are provided through the ejector base plate and ejector faceplate, with their ends away from the base plate contacting the B plate, thereby limiting the range of motion of the ejector base plate and ejector faceplate, ensuring motion within a certain stroke and preventing excessive ejection or retraction. The second guide cylinders are provided through the ejector base plate, ejector faceplate, and B plate in sequence, providing precise guidance for the motion of the ejector base plate and ejector faceplate, ensuring straightness and stability during motion. The positioning pins are provided through the ejector base plate and ejector faceplate in sequence, positioning and securing the ejector plate to prevent displacement or rotation during operation.

[0011] Furthermore, in a thin-walled forming mold in the present application, a group of protrusions are provided on the outer periphery of the side of the lower mold away from the bottom plate, and the protrusions correspond to the recesses provided on the outer periphery of the upper mold away from the panel. A group of third guide pillars are provided on the outer periphery of the upper mold, and the third guide pillars correspond to the through holes provided on the lower mold. A detachable connector is provided on the side of the lower mold, and is connected to the upper mold through the connector. The protrusions on the outer periphery of the lower mold correspond to the recesses on the outer periphery of the upper mold, playing a positioning role when closing the mold, ensuring that the upper and lower molds can be accurately aligned and improving the precision of the mold. The group of third guide pillars on the outer periphery of the upper mold correspond to the through holes on the lower mold, further enhancing the positioning accuracy between the upper and lower molds, and at the same time playing a guiding role in the process of opening and closing the mold, making the movement of the mold more stable.

[0012] Furthermore, in a thin-walled molding mold in the present application, an upper insulation plate is connected to the side of the panel away from the base plate, and a lower insulation plate is provided on the side of the base plate away from the panel. The setting of the upper and lower insulation plates can effectively reduce the heat transfer from the inside of the mold to the external equipment or working environment, avoid damage to the peripheral equipment due to high temperature, and extend the service life of the equipment.

[0013] Furthermore, in a thin-walled forming mold in the present application, a group of second limit pins and a group of fourth guide columns are provided on the lower insulation plate, the second limit pins are sequentially passed through the bottom plate and the square iron, and the fourth guide columns are sequentially passed through the bottom plate, the square iron and the lower mold.

[0014] It can be seen from the above technical solution that the utility model has the following beneficial effects:

[0015] 1. The thin-wall molding mold described in this utility model incorporates a set of vent inserts within the lower mold insert. The vent inserts are spaced apart and have an opening in the middle. Gaps exist between the vent inserts. During the injection molding process, gas can be discharged through these gaps, effectively solving the problem of trapped gas caused by high-speed injection molding.

[0016] 2. The thin-walled forming mold described in the present invention is designed with a pair of inclined ejector assemblies, which include an inclined ejector seat, an inclined ejector guide block, and an inclined ejector support. The inclined ejector seat is installed in a corresponding groove on the ejector base plate, and the inclined ejector guide block is located in a corresponding groove on the side of the lower mold away from the panel. The inclined ejector support is T-shaped, installed in the inclined ejector seat and penetrates the inclined ejector guide block and the inclined hole provided in the lower mold, sliding along the inclined hole. This design allows the inclined ejector support to act on the ribs on both sides of the product. Due to the large contact area of ​​the ribs, the force is evenly distributed during ejection, reducing stress concentration and ensuring that the product is intact during ejection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of a thin-wall forming mold of the utility model;

[0018] Figure 2 This is a schematic cross-sectional view of a thin-wall forming die of the present invention;

[0019] Figure 3 for Figure 2 A magnified schematic diagram of area A in the middle;

[0020] Figure 4 Schematic diagram of the exhaust insert structure;

[0021] Figure 5 This is a schematic diagram of the explosion structure of a thin-wall forming mold of the utility model;

[0022] Figure 6 This is a schematic diagram of the structure of the inclined roof assembly;

[0023] Figure 7 Schematic diagram of product structure;

[0024] Figure 8 Eject the front section of the product;

[0025] Figure 9 for Figure 8 A magnified schematic diagram of area B in the middle;

[0026] Figure 10 This is the cross-sectional view of the product after ejection;

[0027] Figure 11 for Figure 10 Enlarged schematic diagram of area C in the middle.

[0028] Description of the accompanying drawings: 1-panel, 2-upper mold, 3-lower mold, 4-ejector plate, 5-bottom plate, 6-mold cavity, 7-product, 8-upper insulation board, 9-lower insulation board, 21-upper mold core, 22-recess, 23-third guide column, 31-lower mold core, 311-insert, 3111-exhaust insert, 31111-opening, 3112-gap, 32-protrusion, 33-connector, 4 1- ejection mechanism, 411- inclined ejector assembly, 4111- inclined ejector seat, 4112- inclined ejector guide block, 4113- inclined ejector support, 412- ejector pin, 413- spring, 414- first guide column, 42- square iron, 43- ejector base plate, 44- ejector panel, 45- side plate, 51- limiting cylinder, 52- second guide column, 53- limiting pin, 91- second limiting pin, 92- fourth guide column. DETAILED DESCRIPTION

[0029] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0030] Example 1

[0031] like Figure 1 、 2 , 3, 4, 5, 7 show a thin-walled molding die, comprising a panel 1, an upper die 2, a lower die 3, an ejector plate 4, and a bottom plate 5; the panel 1, the upper die 2, the lower die 3, the ejector plate 4, and the bottom plate 5 are arranged in sequence, the upper die 2 is connected to an upper die core 21 on the side close to the lower die 3, the lower die 3 is connected to a lower die core 31 on the side close to the upper die 2, an insert 311 is provided in the lower die core 31, a set of exhaust inserts 3111 are provided in the insert 311, the exhaust The inserts 3111 are arranged at intervals, with gaps 3112 between them. These gaps 3112 are used to exhaust air during injection molding. The ejector plate 4 is provided with an ejector mechanism 41, which is inserted into the lower mold 3. The upper mold 2, lower mold 3, and the output end of the ejector mechanism 41 abut to form a mold cavity 6. The product 7 is injection molded within the mold cavity 6. When the mold is opened, the ejector mechanism 41 presses against the product 7, separating it from the lower mold core 31. A set of vent inserts 3111 is provided within the insert 311 of the lower mold core 31. These vent inserts 3111 are arranged at intervals and have gaps 3112 between them. During the injection molding process, the gaps 3112 effectively exhaust air, prevent air entrapment, and ensure product molding quality. The ejector plate 4 is provided with an ejector mechanism 41. When the mold is opened, the ejector mechanism 41 presses against the product 7, separating it from the lower mold core 3, facilitating its removal and improving production efficiency. The preferred spacing of the gaps is 0.02 mm.

[0032] In this embodiment, Figure 4As shown, the exhaust inserts 3111 are blade-shaped and arranged in sequence at intervals, and an opening 31111 is provided in the middle of the exhaust inserts 3111. The opening 31111 is provided in the middle of the exhaust inserts 3111, so that trapped air is more easily discharged during the injection molding process.

[0033] In this embodiment, Figure 5 As shown, the ejector plate 4 includes a pair of square irons 42, an ejector base plate 43, an ejector panel 44, and a side plate 45. The square irons 42 and ejector base plate 43 are arranged on the base plate 5. The ejector base plate 43 is arranged between the two square irons 42, and the two square irons 42 are connected by the side plate 45. The ejector base plate 43 is provided with an ejector panel 44 on the side away from the base plate 5. Both the ejector base plate 43 and the ejector panel 44 are provided with through holes. The square irons 42 provide stable support for the ejector base plate 43, ensuring that the ejection mechanism 41 does not wobble or deflect during operation. The combination of the ejector base plate 43 and the ejector panel 44 provides space for the installation and movement of the ejection mechanism 41. The connection of the two square irons 42 by the side plate 45 enhances the overall structural stability of the ejector plate 4, enabling it to withstand the pressure during the injection molding process and the force applied by the ejection mechanism 41.

[0034] In this embodiment, Figure 5 、 6 As shown, the ejection mechanism 41 includes a pair of inclined ejector components 411, and the inclined ejector components 411 include an inclined ejector seat 4111, an inclined ejector guide block 4112, and an inclined ejector support 4113. The inclined ejector seat 4111 is installed in the groove corresponding to the ejector base plate 43, and the inclined ejector guide block 4112 is provided in the groove corresponding to the side of the lower mold 3 away from the panel 1. The inclined ejector support 4113 is T-shaped, installed in the inclined ejector seat 4111, and is passed through the inclined ejector guide block 4112 and the inclined hole provided on the lower mold 3, and slides along the inclined hole. The inclined ejector support 4113 is T-shaped and can slide along the inclined hole. This design allows the inclined ejector support 4113 to move according to a predetermined angle and trajectory during the ejection process, accurately acting on the product 7, and achieving smooth separation of the product 7 from the mold.

[0035] In this embodiment, Figure 6 As shown, the end portion of the inclined support 4113 connected to the inclined support seat 4111 is in an I-shape, the inclined support seat 4111 is provided with a convex transverse groove, and the I-shaped end portion of the inclined support 4113 is arranged in the convex transverse groove of the inclined support seat 4111.

[0036] In this embodiment, Figure 5As shown, the ejection mechanism 41 further includes a set of ejector pins 412, a set of springs 413, and a set of first guide pins 414. The ejector pins 412 are mounted on the ejector base plate 43, and the first guide pins 414 are mounted on the ejector base plate 43. The springs 413 correspond to and are sleeved within the first guide pins 414. One end of the springs 413 contacts the ejector panel 44, and the other end contacts the lower mold 3. The ejector pins 412 are directly mounted on the ejector base plate 43 and are used to directly eject the product 7 when the mold is opened. The first guide pins 414 are also mounted on the ejector base plate 43 and provide guidance for the movement of the ejector pins 412, ensuring that the ejector pins 412 maintain linear motion during the ejection process, thereby improving ejection accuracy and stability. The springs 413 correspond to and are sleeved within the first guide pins 414. One end of the springs 413 contacts the ejector panel 44, and the other end contacts the lower mold 3. During the ejection process, the spring 413 can play a role in buffering and resetting. Preferably, the number of ejector pins 412 is four, acting on the middle of the product 7, and a set of four first guide pins 414 is provided, which are arranged at the four right angles of the rectangular lower mold 3, and the corresponding four springs are mounted on the first guide pins.

[0037] In this embodiment, Figure 5 As shown, the base plate 5 is provided with a group of limiting cylinders 51, a group of second guide pillars 52, and a group of limiting pins 53. The limiting cylinders 51 are passed through the ejector base plate 43 and the ejector panel 44. The end of the limiting cylinder 51 away from the base plate 5 contacts the lower mold 3. The second guide pillars 52 are sequentially passed through the ejector base plate 43, the ejector panel 44 and the lower mold 3. The limiting pins 53 are sequentially passed through the ejector base plate 43 and the ejector panel 44. A limiting cylinder 51 is provided through the ejector base plate 43 and the ejector face plate 44. Its end away from the base plate 5 contacts the B plate 3, limiting the range of motion of the ejector base plate 43 and the ejector face plate 44, ensuring movement within a certain range and preventing excessive ejection or retraction. A second guide post 52 is provided sequentially through the ejector base plate 43, the ejector face plate 44, and the lower mold 3, providing precise guidance for the movement of the ejector base plate 43 and the ejector face plate 44, ensuring straightness and stability during movement. A locating pin is provided sequentially through the ejector base plate and the ejector face plate, positioning and securing the ejector plate to prevent displacement or rotation during operation. Preferably, there are five limiting cylinders, four second guide posts, and two limiting pins.

[0038] In this embodiment, Figure 5As shown, the lower mold 3 is provided with a set of protrusions 32 on the outer periphery of the side away from the base plate 5. The protrusions 32 correspond to the recesses 22 on the outer periphery of the upper mold 2 away from the panel 1. The upper mold 2 is provided with a set of third guide posts 23 on the outer periphery. The third guide posts 23 correspond to the through holes provided in the lower mold. The lower mold 3 is provided with a detachable connector 33 on the side, which connects to the upper mold 2. The protrusions 32 on the outer periphery of the lower mold 3 correspond to the recesses 22 on the outer periphery of the upper mold 2, playing a positioning role during mold closing, ensuring that the upper mold 2 and the lower mold 3 can be accurately aligned and improving the mold precision. The set of third guide posts 23 on the outer periphery of the upper mold 2 corresponds to the through holes in the lower mold 3, further enhancing the positioning accuracy between the upper mold 2 and the lower mold 3, and also playing a guiding role during the opening and closing process, making the mold movement more stable. Preferably, there are two protrusions 32, located in the middle of each side of the rectangular lower mold 3, and there are four third guide posts 23, located at the four right angles of the rectangular upper mold 2.

[0039] In this embodiment, Figure 1 As shown, an upper heat insulation board 8 is connected to the side of the panel 1 away from the bottom plate 5, and a lower heat insulation board 9 is provided on the side of the bottom plate 5 away from the panel 1. The provision of the heat insulation board can effectively reduce the heat transfer from the inside of the mold to the external equipment or working environment, avoid damage to peripheral equipment caused by high temperature, and extend the service life of the equipment.

[0040] In this embodiment, Figure 5 As shown, the lower heat insulation plate 9 is provided with a set of second limit pins 91 and a set of fourth guide pins 92. The second limit pins 91 are sequentially passed through the bottom plate 5 and the square iron 42, and the fourth guide pins 92 are sequentially passed through the bottom plate 5, the square iron 42, and the lower mold 3. Preferably, the third guide pins 93 are provided in two groups of three, and the second limit pins are provided in two groups of two.

[0041] The schematic diagram of the front and back state of the inclined ejector assembly 411 ejecting the product 7 is as follows: Figure 8 、 9 , 10, and 11, the schematic diagram of the overall section of the mold before ejecting the product 7 is as follows Figure 8 As shown, Figure 9 for Figure 8 The enlarged view of area B in the middle shows the overall cross-section of the mold after ejecting product 7. Figure 10 As shown, Figure 11 for Figure 10 In the enlarged view of area C, it can be clearly seen that the inclined support 4113 pushes the product 7 out along the side of the product 7.

[0042] The above embodiments are illustrative and intended to illustrate the technical concepts and features of the present invention so that those skilled in the art can understand the present invention and implement it accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications based on the spirit of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A thin-wall forming mold, characterized in that: The invention comprises a panel (1), an upper mold (2), a lower mold (3), an ejector plate (4), and a bottom plate (5); the panel (1), the upper mold (2), the lower mold (3), the ejector plate (4), and the bottom plate (5) are arranged in sequence, the upper mold (2) is connected to an upper mold core (21) on one side close to the lower mold (3), the lower mold (3) is connected to a lower mold core (31) on one side close to the upper mold (2), an insert (311) is provided in the lower mold core (31), a group of exhaust inserts (3111) are provided in the insert (311), and the exhaust inserts (3111) are provided in the lower mold core (3111). ) are arranged at intervals, and gaps (3112) are provided between the exhaust inserts (3111), and the gaps (3112) are used to exhaust air during injection molding. The ejector plate (4) is provided with an ejector mechanism (41), and the ejector mechanism (41) is passed through the lower mold (3). The upper mold (2), the lower mold (3), and the output end portions of the ejector mechanism (41) are abutted to form a mold cavity (6), and the product (7) is injection molded in the mold cavity (6). When the mold is opened, the ejector mechanism (41) presses the product (7) to separate the product (7) and the lower mold (3).

2. A thin-walled forming mold according to claim 1, characterized in that: The exhaust inserts (3111) are blade-shaped and are arranged in sequence and at intervals, and an opening (31111) is provided in the middle of the exhaust inserts (3111).

3. A thin-walled forming mold according to claim 2, characterized in that: The ejector plate (4) comprises a pair of square irons (42), an ejector base plate (43), an ejector panel (44), and a side plate (45). The square irons (42) and the ejector base plate (43) are arranged on the bottom plate (5). The ejector base plate (43) is arranged between the two square irons (42). The two square irons (42) are connected by the side plate (45). The ejector panel (44) is provided on the side of the ejector base plate (43) away from the bottom plate (5). Both the ejector base plate (43) and the ejector panel (44) are provided with through holes.

4. A thin-walled forming mold according to claim 3, characterized in that: The ejection mechanism (41) includes a pair of inclined ejector components (411), the inclined ejector components (411) including an inclined ejector seat (4111), an inclined ejector guide block (4112), and an inclined ejector support (4113). The inclined ejector seat (4111) is installed in a groove corresponding to the ejector base plate (43), the inclined ejector guide block (4112) is arranged in a groove corresponding to the side of the lower mold (3) away from the panel (1), and the inclined ejector support (4113) is T-shaped, installed in the inclined ejector seat (4111), and is inserted into the inclined holes provided on the inclined ejector guide block (4112) and the lower mold (3), and slides along the inclined holes.

5. A thin-walled forming mold according to claim 4, characterized in that: The end portion of the inclined top support (4113) connected to the inclined top seat (4111) is in an I-shape, the inclined top seat (4111) is provided with a convex transverse groove, and the I-shaped end portion of the inclined top support (4113) is arranged in the convex transverse groove of the inclined top seat (4111).

6. A thin-walled forming mold according to claim 5, characterized in that: The ejection mechanism (41) further includes a group of ejector pins (412), a group of springs (413), and a group of first guide pins (414). The ejector pins (412) are mounted on the ejector base plate (43). The first guide pins (414) are mounted on the ejector base plate (43). The springs (413) correspond to the first guide pins (414) and are sleeved in the first guide pins (414). One end of the springs (413) contacts the ejector panel (44), and the other end contacts the lower mold (3).

7. A thin-walled forming mold according to claim 6, characterized in that: The base plate (5) is provided with a group of limiting cylinders (51), a group of second guide pillars (52), and a group of limiting pins (53). The limiting cylinders (51) are passed through the ejector base plate (43) and the ejector panel (44). The end of the limiting cylinder (51) away from the base plate (5) contacts the lower mold (3). The second guide pillars (52) are passed through the ejector base plate (43), the ejector panel (44), and the lower mold (3) in sequence. The limiting pins (53) are passed through the ejector base plate (43) and the ejector panel (44) in sequence.

8. The thin-walled forming mold according to claim 7, characterized in that: The lower mold (3) is provided with a group of protrusions (32) on the outer periphery of the side away from the bottom plate (5), and the protrusions (32) correspond to the recesses (22) provided on the outer periphery of the upper mold (2) away from the panel (1). The upper mold (2) is provided with a group of third guide pillars (23) on the outer periphery, and the third guide pillars (23) correspond to the through holes provided on the lower mold. The side of the lower mold (3) is provided with a detachable connecting piece (33), and is connected to the upper mold (2) through the connecting piece (33).

9. The thin-wall forming mold according to claim 8, characterized in that: An upper heat insulation board (8) is connected to the side of the panel (1) away from the bottom board (5), and a lower heat insulation board (9) is provided on the side of the bottom board (5) away from the panel (1).

10. The thin-walled forming mold according to claim 9, characterized in that: The lower heat insulation plate (9) is provided with a group of second limiting pins (91) and a group of fourth guide pillars (92); the second limiting pins (91) are sequentially passed through the bottom plate (5) and the square iron (42); and the fourth guide pillars (92) are sequentially passed through the bottom plate (5), the square iron (42) and the lower mold (3).

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