Gas-assisted forming die-casting die structure
By designing two flow channels, an air inlet channel, and an air outlet channel in the die-casting mold, combined with bosses and recesses for limiting, buffer channels, and sealing devices, the problems of uneven material feeding and unstable gas pressurization in traditional die-casting molds are solved, achieving high-quality and rapid product molding.
Patent Information
- Application Number
- CN202423209682.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2034-12-24
AI Technical Summary
The poor design of the feeding and gas injection channels in traditional die-casting molds leads to uneven feeding into the mold cavity and unstable gas pressurization, which affects the product molding quality and application range.
Design a gas-assisted die-casting mold structure, which uses two flow channels to feed material on adjacent sides of the mold cavity, in conjunction with an air inlet channel and an air outlet channel to ensure uniform material feeding and consistent gas pressure. The mold uses bosses and recesses to limit the gas flow, buffer channels to buffer the gas discharge, and a sealing device to control the gas flow.
It achieves stable and consistent product molding quality, prevents deformation and shrinkage marks, improves molding speed and usability, and expands the scope of application.
Smart Images
Figure CN223748516U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the die field technology especially is a kind of gas auxiliary forming's die casting die structure. BACKGROUND
[0002] At present, die casting die is a tool for casting liquid die forging, a kind of process completed on dedicated die casting die forging machine;Its basic process is: metal liquid is first low-speed or high-speed casting filling into the cavity of die, die has movable cavity face, it is pressurized forging along with the cooling process of metal liquid, both eliminates the shrinkage porosity defect of blank, and also makes the internal organization of blank reach the broken grain of forging state. The comprehensive mechanical properties of blank are significantly improved.
[0003] Traditional die casting forming, its wall thickness product is used for conventional die casting forming method, and the injection pressure is large, and the forming cycle is long, so as to cause high cost;Later, a kind of auxiliary forming's die casting die appears on the market, which adds auxiliary forming's gas injection mechanism on the die casting die, gas injection mechanism is used to deliver gas into the die casting die, to realize the stable pressurization of die cavity, thereby assisting the forming of product;But, the arrangement structure design of feeding channel and gas injection channel in the die casting die is poor, so that the die cavity appears the phenomenon of uneven feeding and unstable gas pressurization, leading to unstable forming quality of product, cannot meet the use demand of user, and the application range is small.
[0004] Therefore, a new technical scheme needs to be researched to solve the above problems. UTILITY MODEL CONTENT
[0005] Therefore, the utility model provides a kind of die casting die structure of gas auxiliary forming, which uses two shunt passages to feed on the adjacent two sides of die cavity respectively, cooperates with the feeding channel and exhaust passage of the other side, is beneficial to the uniform feeding of raw material on die cavity and the consistent pressurization pressure of gas to raw material, prevents the deformation problem when product forming, thereby guarantees the consistent stability of product forming quality, meets the use demand of user, and the application range is wide.
[0006] To achieve the above object, the utility model adopts the following technical scheme:
[0007] The application discloses a kind of gas-assisted forming die structure of die casting mould, including die body, pouring system and gas-assisted component;Wherein: the die cavity is provided in the die body;The pouring system is arranged at the edge position inside the die body and is located at one side of the die cavity, and the pouring system includes pouring runner and shunt connected to pouring runner, the upper end of pouring runner penetrates the die body, and the shunt is provided with two, and the two shunts are respectively arranged at the adjacent two sides of the die cavity and are communicated with the die cavity;The gas-assisted component includes air inlet channel, exhaust passage, gas conveying device and exhaust device, and the air inlet channel and exhaust passage are arranged at the edge position inside the die body and are located at the other side of the die cavity, one end of the air inlet channel and exhaust passage is respectively communicated with the die cavity, the other end of the air inlet channel is provided with air inlet on the lower side, the gas conveying device is connected with the air inlet channel through the air inlet, the other end of the exhaust passage is provided with exhaust outlet on the upper side, and the exhaust device is connected with the exhaust passage through the exhaust outlet.
[0008] As a preferred scheme, the die body includes upper die and lower die, the upper end of the lower die is provided with first forming area, the lower end of the upper die is provided with second forming area, the die cavity is formed in the area surrounded by the first forming area and the second forming area when the upper die and the lower die are closed, and the pouring runner and the exhaust outlet are arranged in the upper die, and the air inlet is arranged in the lower die.
[0009] As a preferred scheme, the four corners of the first forming area are provided with bosses extending upward, and the four corners of the second forming area are provided with recesses matched with the bosses, and the recesses are matched and connected with the bosses.
[0010] As a preferred scheme, the air inlet channel is horizontally arranged from outside to inside, and the air inlet channel is gradually increased from the air inlet to the die cavity.
[0011] As a preferred scheme, the exhaust passage and the exhaust outlet are provided with a buffer channel.
[0012] As a preferred scheme, the buffer channel is an arc-shaped channel.
[0013] Compared with the prior art, the utility model has obvious advantages and beneficial effects, specifically speaking, according to the above technical scheme, it is mainly through the design of each component, the two shunts are used for feeding respectively at the adjacent two sides of the die cavity, and the air inlet channel and the exhaust passage on the other side are matched, which is beneficial to the uniform feeding of raw materials in the die cavity, ensures the pressure transmission effect of gas in the die cavity, so that the pressure of each position in the die cavity is kept consistent, prevents the deformation problem of product forming, avoids the shrinkage mark on the surface of product, thereby ensures that the product forming quality is stable and consistent, meets the use demand of user, and is widely applicable.
[0014] Secondly, the setting of the boss and the recess is favorable to the limiting when the upper die and the lower die are combined, ensures the flatness of the product surface after forming, improves the forming quality of the product, and the usability is good, meanwhile, the setting of the buffer channel plays the buffering effect when the gas is discharged, thereby ensuring the uniform pressing effect of the gas in the mold cavity on the forming product, and simultaneously discharging the heat of the forming product, and accelerating the product forming speed;
[0015] And the setting of the plugging device facilitates the control when the gas enters or discharges the mold cavity.
[0016] In order to more clearly set forth the structural features and functions of the utility model, the utility model will be described in detail below in combination with the drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS
[0017] Fig. 1 is the sectional view of the embodiment of the utility model;
[0018] Fig. 2 is the schematic view of the lower die of the embodiment of the utility model.
[0019] BRIEF DESCRIPTION OF DRAWINGS:
[0020] 10, mold body 11, pouring system
[0021] 111, pouring runner 112, shunt
[0022] 12, gas auxiliary assembly 121, gas inlet channel
[0023] 122, exhaust channel 123, gas inlet
[0024] 124, exhaust port 125, buffer channel
[0025] 13, mold cavity 14, upper die
[0026] 15, lower die 151, first forming area
[0027] 152, boss 16, plugging device. DETAILED DESCRIPTION
[0028] Please refer to Figs. 1-2 , which shows the specific structure of the embodiment of the utility model.
[0029] A kind of gas auxiliary forming's die casting die structure, including mold body 10, pouring system 11 and gas auxiliary assembly 12;Wherein: the mold body 10 in it is provided with mold cavity 13;
[0030] The gating system 11 is arranged at the edge position inside the mold body 10 and located at one side of the mold cavity 13, the gating system 11 comprises a gating runner 111 and a runner 112 communicated with the gating runner 111, the upper end of the gating runner 111 penetrates the mold body 10, the runner 112 is arranged in two, and the two runners 112 are arranged at the adjacent two sides of the mold cavity 13 and communicated with the mold cavity 13;
[0031] The air-assisted assembly 12 comprises an air inlet channel 121, an air outlet channel 122, a gas conveying device and an air outlet device (not shown in the figure), the air inlet channel 121 and the air outlet channel 122 are arranged at the edge position inside the mold body 10 and located at the other side of the mold cavity 13, one end of the air inlet channel 121 and the air outlet channel 122 is respectively communicated with the mold cavity 13, the other end of the air inlet channel 121 is arranged with an air inlet 123 at the lower side, the gas conveying device is connected with the air inlet channel 121 through the air inlet 123, the other end of the air outlet channel 122 is arranged with an air outlet 124 at the upper side, the air outlet device is connected with the air outlet channel 122 through the air outlet 124;
[0032] Specifically, the mold body 10 comprises an upper mold 14 and a lower mold 15, the upper end of the lower mold 15 is arranged with a first forming area 151, the lower end of the upper mold 14 is arranged with a second forming area (not shown in the figure), when the upper mold 14 and the lower mold 15 are closed, the mold cavity 13 is formed in the area surrounded by the first forming area 151 and the second forming area, the gating runner 111 and the air outlet 124 are arranged in the upper mold 14, and the air inlet 123 is arranged in the lower mold 15, in this way, through the design of each component, the two runners are used to feed at the adjacent two sides of the mold cavity respectively, and the air inlet channel and the air outlet channel at the other side are matched, which is beneficial to the uniform feeding of the raw materials in the mold cavity, ensures the pressure transmission effect of the gas in the mold cavity, so that the pressure at each position in the mold cavity is consistent, prevents the deformation problem of the product during molding, avoids the shrinkage mark on the surface of the product, thereby ensuring the stability of the molding quality of the product, meeting the use requirements of the user, and having wide application range.
[0033] In addition, the four corners of the first forming area 151 are arranged with bosses 152 extending upwards, the four corners of the second forming area are correspondingly arranged with recesses matched with the bosses (not shown in the figure), the recesses are matched and connected with the bosses 152, in this way, the arrangement of the bosses and the recesses is beneficial to the limiting of the upper mold and the lower mold during closing, ensures the flatness of the surface of the product after molding, improves the molding quality of the product, and has good usability.
[0034] And, the air inlet channel 121 is horizontally arranged from outside to inside, the air inlet channel 121 is gradually increased from the air inlet 123 to the cavity, and the buffer channel 125 is arranged between the air outlet channel 122 and the air outlet 124; the buffer channel 125 is an arc-shaped channel, preferably, the air inlet 123 and the air outlet 124 are provided with sealing devices 16 for opening and closing, so that the buffer channel is arranged to buffer the gas when the gas is discharged, thereby ensuring the uniform pressure effect of the gas in the cavity on the molded product, and simultaneously discharging the heat of the molded product to accelerate the product molding speed, and the sealing device is arranged to facilitate the control of the gas entering or discharging from the cavity.
[0035] The design emphasis of the utility model lies in that it mainly utilizes the design of various components, utilizes two shunt channels to respectively feed materials on the adjacent two sides of the cavity, cooperates with the air inlet channel and the air outlet channel on the other side, is favorable for uniform feeding of raw materials on the cavity, ensures the pressure transmission effect of the gas in the cavity, so as to keep the pressure of various positions in the cavity consistent, prevents the deformation problem of the product when the product is molded, avoids the shrinkage mark on the surface of the product, thereby ensures the consistent molding quality of the product, meets the use demand of the user, and is suitable for a wide range of applications.
[0036] Secondly, the setting of the boss and the recess is favorable for the limiting of the upper die and the lower die when the upper die and the lower die are combined, ensures the flatness of the surface of the product after molding, improves the molding quality of the product, and is good in usability, and the setting of the buffer channel buffers the gas when the gas is discharged, thereby ensuring the uniform pressure effect of the gas in the cavity on the molded product, and simultaneously discharging the heat of the molded product to accelerate the product molding speed.
[0037] And, the setting of the sealing device facilitates the control of the gas entering or discharging from the cavity.
[0038] The above is only a preferred embodiment of the utility model, and does not limit the technical range of the utility model, so any slight modification, equivalent change and modification of the above embodiment according to the technical essence of the utility model still belongs to the range of the technical scheme of the utility model.
Claims
1. A structure of a gas assist molding die, characterized by: The utility model relates to a mold body, a gating system and a gas auxiliary assembly, wherein the mold body is internally provided with a mold cavity; the gating system is arranged at the edge of the internal part of the mold body and located at one side of the mold cavity, and the gating system comprises a gating runner and a branch runner connected to the gating runner, the upper end of the gating runner penetrates the mold body, and the branch runner is provided with two branches, and the two branches are arranged at the adjacent two sides of the mold cavity and communicated with the mold cavity; the gas auxiliary assembly comprises an air inlet channel, an air outlet channel, a gas conveying device and an air outlet device, the air inlet channel and the air outlet channel are arranged at the edge of the internal part of the mold body and located at the other side of the mold cavity, one end of the air inlet channel and the air outlet channel is respectively communicated with the mold cavity, the other end of the air inlet channel is provided with an air inlet at the lower side, the gas conveying device is connected with the air inlet channel through the air inlet, the other end of the air outlet channel is provided with an air outlet at the upper side, and the air outlet device is connected with the air outlet channel through the air outlet.
2. A structure of a gas assist molding die according to claim 1, characterized by: The mold body comprises an upper mold and a lower mold, the upper end of the lower mold is provided with a first forming area, the lower end of the upper mold is provided with a second forming area, the mold cavity is formed on the area surrounded by the first forming area and the second forming area when the upper mold and the lower mold are closed, the gating runner and the air outlet are arranged in the upper mold, and the air inlet is arranged in the lower mold.
3. A structure of a gas assist injection moulding die according to claim 2, wherein: The four corners of the first forming area are provided with bosses extending upwards, the four corners of the second forming area are provided with concave positions matched with the bosses, and the concave positions are matched and connected with the bosses.
4. A structure of a gas assist injection molding die according to claim 1, characterized in that: The air inlet channel is horizontally arranged from outside to inside, and the air inlet channel is gradually increased from the air inlet to the mold cavity.
5. A structure of a gas assist injection molding die according to claim 1, characterized in that: A buffer channel is arranged between the air outlet channel and the air outlet.
6. A structure of a gas assist injection moulding die according to claim 5, wherein: The buffer channel is an arc-shaped channel.