Air cooling structure in mold
By directly delivering cold air to the product through the in-mold air-cooling structure, the problems of uneven cooling and low efficiency in traditional mold cooling methods are solved, achieving a highly efficient and uniform product cooling effect and improving the quality and efficiency of injection molding.
Patent Information
- Application Number
- CN202520215446.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-11
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-02-11
AI Technical Summary
Traditional mold cooling methods are ineffective when cooling products with complex structures and uneven wall thicknesses, resulting in high residual stress, uneven shrinkage, and deformation inside the product, which affects the product's dimensional accuracy and mechanical properties.
Design an in-mold air-cooling structure to directly deliver cold air to the inside of the product through air holes, channels and air-cooled ejector mechanism to achieve efficient and uniform cooling.
It significantly improves product cooling efficiency and quality, reduces manufacturing and maintenance costs, ensures uniform cooling coverage of all areas inside the product, and optimizes the cooling effect.
Smart Images
Figure CN223657543U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to mould technical field, concretely is a mould internal air cooling structure. BACKGROUND
[0002] In the field of mould injection molding, product cooling efficiency is one of the key factors to determine production efficiency and product quality; the traditional mould cooling mode adopts water cooling or air cooling of the outer wall of the mould, this method can reduce the temperature of the mould and the product surface to a certain extent, but for the product internal, especially the product with complex structure and uneven wall thickness, the cooling effect is often not ideal, which easily leads to problems such as large residual stress in the product internal, uneven shrinkage, deformation, thereby affecting the dimensional accuracy and mechanical properties of the product.
[0003] Therefore, it is urgent to design a novel mould internal air cooling structure to overcome the deficiencies of the prior art and promote the further development of the mould injection molding technology. CONTENT OF THE UTILITY MODEL
[0004] In view of the deficiencies of the prior art, the utility model provides a mould internal air cooling structure, which solves the problems in the above background art.
[0005] To achieve the above object, the utility model realizes the following technical scheme: a mould internal air cooling structure, comprising a lower mould and an upper mould, the lower end of the lower mould is movably connected with a ejector plate, the inside of the lower mould is fixed with a mould base, the upper mould is matched with the lower mould after moulding to generate a product body on the mould base, the outside end of the ejector plate is provided with a gas hole, the inside of the ejector plate is provided with a hole channel communicated with the gas hole, the upper end of the ejector plate is provided with an air cooling ejection mechanism, the air cooling ejection mechanism vertically penetrates the lower mould, and the gas outlet end of the air cooling ejection mechanism is located in the mould base and is matched and corresponded with the inside of the product body.
[0006] Further, the air cooling ejection mechanism comprises an ejector pin, the ejector pin is connected to the upper end of the ejector plate, a through hole is formed in the ejector pin and penetrates both ends, a connecting hole is formed in the vertical direction of the hole channel, the through hole and the connecting hole are vertically communicated and connected, and cold air enters the product body through the gas hole, the hole channel, the connecting hole and the through hole.
[0007] Further, the lower mould is fixed with a gas cylinder, the output end of the gas cylinder is connected with a ejector rod, the end surface of the ejector rod penetrates the mould base and abuts against the inside end of the product body, so as to eject the product body from the mould base, and the ejector pin moves upward together with the ejector rod.
[0008] Further, the upper end side surface of the ejector pin is provided with a side hole, the side hole is formed in four directions, so as to cool four directions inside the product body at the same time.
[0009] Further, the number of the ejector rods is multiple, and the ejector rods are uniformly distributed and arranged to slide on the mold base below the product body.
[0010] Further, the hole communicates with multiple connecting holes, and the multiple through holes are supplied with air.
[0011] With respect to the above background, the present application provides a mold internal air cooling structure; including the technology in the very mature mold, and with the air cooling top material mechanism as the core component, its principle relies on the outside air supply, through the air hole, hole, connecting hole and through hole into the inside of the product body, which can directly cool the product body through the inside, thereby improving the cooling efficiency of the product body.
[0012] The utility model provides a mold internal air cooling structure. Compared with prior art, the utility model has the following beneficial effects:
[0013] The mold internal air cooling structure; the air hole, the hole and the air cooling top material mechanism are integrated in the lower mold, efficient and uniform cooling of the inside of the product body is realized, and the cooling efficiency and quality of the product in the injection molding process are significantly improved; the structure not only overcomes the problems of uneven internal cooling and low cooling efficiency in the traditional cooling method, but also optimizes the cold air delivery path and distribution mechanism, ensures that the cold air can fully and uniformly cover each area inside the product, reduces the manufacturing and maintenance cost, provides an efficient and reliable cooling solution for the injection molding field, and has significant economic and social benefits. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is the overall structure schematic view of the utility model;
[0015] Figure 2 It is the structure schematic view of the mold base and the product body of the utility model;
[0016] Figure 3 It is the structure schematic view of the ejector pin and the ejector pin plate of the utility model;
[0017] Figure 4 It is the structure schematic view of the hole and the ejector pin plate of the utility model;
[0018] Figure 5 It is Figure 3 The structure schematic view of the enlarged structure in A;
[0019] Figure 6 It is Figure 4 The structure schematic view of the enlarged structure in B.
[0020] In the figure: 1, lower mold; 2, upper mold; 3, ejector plate; 4, air hole; 5, mold base; 6, product body; 7, ejector pin; 8, through hole; 9, hole; 10, connecting hole; 11, side hole; 12, ejector rod. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0022] Please refer to Figures 1-6 The utility model provides a kind of technical scheme: a mold inner air cooling structure;Specifically by lower mold 1 and upper mold 2 are connected with movable ejector plate 3 in the lower end of lower mold 1, fixed with mold base 5 in the inside of lower mold 1, after upper mold 2 and lower mold 1 are closed, raw material is injected and is generated product body 6 on mold base 5 by injection molding, at this time, the inside and outside of product body 6 are high temperature, and air hole 4 is opened in the outside end of ejector plate 3, hole 9 is opened in the inside of ejector plate 3, air hole 4 is connected with hole 9, air cooling material mechanism is set on the upper end of ejector plate 3, air cooling material mechanism vertically passes through lower mold 1, and the outlet end of air cooling material mechanism is set in mold base 5, and it is matched with the inside of product body 6 and is set correspondingly, so that cold air can be transported to the inside of product body 6 by air hole 4, hole 9 and air cooling material mechanism, the inside of product body 6 is cooled and treated, and the cooling efficiency of product body 6 is improved;
[0023] Air cooling material mechanism includes ejector pin 7, which is connected to the upper end of ejector plate 3, a through hole 8 is opened in the ejector pin 7, a connecting hole 10 is opened in the vertical direction of hole 9, the through hole 8 is vertically connected with the connecting hole 10, so that cold air enters the hole 9 through the air hole 4, enters the connecting hole 10 in the vertical direction in the hole 9, enters the end of the ejector pin 7 through the connecting hole 10 and the through hole 8, and enters the product body 6, and then cools and cools the product body 6;
[0024] A gas cylinder is fixed in the lower mold 1, and an ejector rod 12 is connected to the gas cylinder. The ejector rod 12 is pushed upward by the gas cylinder. The end surface of the ejector rod 12 abuts against the inside end of the product body 6 through the mold base 5, and then the product body 6 is ejected from the mold base 5. The ejector pin 7 moves upward with the ejector rod 12, and then more cold air can be filled in the product body 6 to achieve better cooling effect.
[0025] The side hole 11 is arranged on the upper end side of the ejector pin 7, and the side hole 11 is arranged in four directions, so that the four directions inside the product body 6 can be cooled at the same time, thereby achieving better cooling effect.
[0026] The above is only the preferred embodiment of the present application, and does not limit the present application in any form. Although the present application has been disclosed in the preferred embodiment, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above disclosed technical content to obtain equivalent embodiments without departing from the technical solution of the present application. Any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present application still belong to the scope of the technical solution of the present application.
Claims
1. A die internal gas cooling structure comprising a lower die (1) and an upper die (2), characterized by, The lower end of the lower mold (1) is movably connected with a ejector plate (3), the inside of the lower mold (1) is fixed with a mold base (5), the upper mold (2) and the lower mold (1) are combined to generate a product body (6) by injection molding on the mold base (5), the outside end of the ejector plate (3) is provided with a air hole (4), the inside of the ejector plate (3) is provided with a hole (9) communicated with the air hole (4), the upper end of the ejector plate (3) is provided with a gas cooling ejecting mechanism, the gas cooling ejecting mechanism vertically passes through the lower mold (1), and the air outlet end of the gas cooling ejecting mechanism is located in the mold base (5) and is matched with the inside of the product body (6).
2. The structure for cooling gas in a mold according to claim 1, wherein The gas cooling ejecting mechanism comprises an ejector pin (7), the ejector pin (7) is connected to the upper end of the ejector plate (3), the inside of the ejector pin (7) is provided with a through hole (8) penetrating through both ends, the vertical direction of the hole (9) is provided with a connecting hole (10), the through hole (8) is vertically communicated with the connecting hole (10), and cold air enters the product body (6) through the air hole (4), the hole (9), the connecting hole (10) and the through hole (8).
3. The structure for cooling gas in a mold according to claim 2, wherein The lower mold (1) is fixed with a air cylinder, the output end of the air cylinder is connected with an ejector rod (12), the end surface of the ejector rod (12) passes through the mold base (5) and abuts against the inside end of the product body (6), so as to eject the product body (6) from the mold base (5), and the ejector pin (7) moves upward together with the ejector rod (12).
4. The structure for cooling gas in a mold according to claim 2, wherein The upper end side of the ejector pin (7) is provided with a side hole (11), the side hole (11) is provided in four directions, and the inside of the product body (6) is cooled in four directions at the same time.
5. The structure for cooling gas in a mold according to claim 3, wherein The number of the ejector rod (12) is multiple, and the ejector rod (12) is uniformly distributed and slidably arranged on the mold base (5) below the product body (6).
6. The structure for cooling gas in a mold according to claim 2, wherein The hole (9) is communicated with multiple connecting holes (10), and multiple through holes (8) are supplied with air at the same time.