A new movable die plate of die casting machine
Patent Information
- Application Number
- CN202522589991.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-05
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-12-05
AI Technical Summary
[0005]本实用新型的目的在于提供一种压铸机的新型动模板，既保留现有分体式动模板在减重、减力臂方面的优势，又能解决前动模板模具安装面整体变形量较大、后动模板维护成本高的问题，提升模板结构稳定性和使用经济性
通过在哥林柱孔处设置延长套，并利用拉筋将延长套与活塞连接座连接，形成稳定的支撑结构，有效限制了延长套的翘头趋势，进而显著减小了前动模板在承载锁模力时的变形量，提升了模板结构稳定性和模具合模精度；采用可拆卸的油缸套结构，油缸套嵌入腔体中形成缸体，当缸体出现磨损时，无需整体更换后动模板，仅需拆卸更换油缸套即可，大幅降低了维护成本和停机时间，提升了设备使用经济性。
Smart Images
Figure CN224895713U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of high pressure casting technology, specifically to a novel moving template for a die casting machine. Background Technology
[0002] In the high-pressure casting process, the fixed mold plate and the moving mold plate of the die casting machine are the core components for fixing and opening / closing the mold. The fixed mold is fixed to the fixed mold plate, and the moving mold is installed on the moving mold plate. The reciprocating motion of the moving mold plate drives the mold to open and close. After the mold is closed, it remains locked under the action of the clamping force. Molten metal is injected into the mold cavity and cools and solidifies, finally forming the die casting.
[0003] As the tonnage of die-casting machines continues to increase, the surface area and weight of the moving mold plate also increase accordingly. The clamping force it bears during operation becomes more significant, leading to increasingly prominent mold deformation problems and causing many inconveniences to production, processing, assembly, and use.
[0004] The direct-pressure die-casting machine with patent number ZL2022750022.6 effectively reduces the weight of individual castings and lowers the casting difficulty by dividing the moving mold into two parts and moving the clamping cylinder from the tie post hole to a position between the two tie post holes. It also shortens the distance from the clamping cylinder to the center of the mold, reducing the lever arm of the clamping force and thus reducing the deformation of the moving mold. However, this structure still has significant drawbacks: firstly, the tie post hole position of the front moving mold lacks support and is in a free state, making it prone to deformation when bearing clamping force; secondly, the machining cavity on the rear moving mold directly serves as the clamping cylinder body, requiring the entire mold to be replaced after wear during use, or repaired by additive manufacturing followed by machine tool machining, resulting in high maintenance costs. Utility Model Content
[0005] The purpose of this utility model is to provide a new type of moving template for a die-casting machine, which retains the advantages of existing split moving templates in terms of weight reduction and lever arm reduction, while solving the problems of large overall deformation of the front moving template mold mounting surface and high maintenance cost of the rear moving template, thereby improving the stability of the template structure and the economy of use.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a novel moving template for a die-casting machine, comprising a front moving template, a mold-locking cylinder, and a rear moving template. The front moving template is connected to the rear moving template via the mold-locking cylinder. The front moving template includes mounting surfaces and bearing surfaces arranged opposite to each other on both sides. The mounting surfaces are used to mount the mold. Through-hole tie rod holes are provided at the four corners of the mounting surfaces. Piston connecting seats are provided on the bearing surfaces. The piston connecting seats are evenly distributed in the middle of two adjacent tie rod holes. An extension sleeve is fixedly fitted at the gatepost hole of the front moving template. The end of the extension sleeve away from the gatepost hole is fixedly connected to the piston connecting seat by a tie rod. The tie rod is used to limit the warping deformation of the extension sleeve, thereby reducing the overall deformation of the front moving template.
[0007] The rear moving template is provided with a cavity, and a detachable and embedtable oil cylinder sleeve is provided in the cavity to form a cylinder structure of a locking cylinder.
[0008] The cylinder liners include two types: cylinder liners with cylinder bottoms and cylinder liners without cylinder bottoms. The cylinder liners without cylinder bottoms are provided with a gripping groove at the bottom position, which facilitates the removal and disassembly by a three-jaw cylinder liner puller. The cylinder liners with cylinder bottoms are provided with a flange structure at the outlet end for easy disassembly and assembly. Both types of cylinder liners can be adapted and assembled with the cavity of the rear moving template.
[0009] The beneficial effects of this utility model are as follows: By setting an extension sleeve at the gatepost hole and connecting the extension sleeve to the piston connecting seat with tie rods, a stable support structure is formed, which effectively limits the tendency of the extension sleeve to tilt, thereby significantly reducing the deformation of the front moving template when bearing the clamping force, improving the stability of the template structure and the mold closing accuracy; adopting a detachable cylinder sleeve structure, the cylinder sleeve is embedded in the cavity to form a cylinder body. When the cylinder body wears, there is no need to replace the entire rear moving template, only the cylinder sleeve needs to be disassembled and replaced, which greatly reduces maintenance costs and downtime, and improves the economic efficiency of equipment use. Attached Figure Description
[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0011] Figure 1 This is a cross-sectional view of the moving template of this utility model; Figure 2 Schematic diagram of a cylinder liner without a cylinder bottom; Figure 3 This is a schematic diagram of a cylinder liner including the cylinder bottom oil. Figure 4 Existing forward-moving template schematic diagram; Figure 5 This is a schematic diagram of the front moving template of this utility model; In the diagram: 1. Front moving template, 101. Mounting surface, 102. Pressure bearing surface, 103. Piston connecting seat, 104. Tie column hole, 105. Extension sleeve, 106. Tie rod, 2. Rear moving template, 3. Cylinder sleeve, 301. Cylinder sleeve without cylinder bottom, 3011. Gripping groove, 302. Cylinder sleeve with cylinder bottom, 3021. Flange, 4. Mold locking cylinder. Detailed Implementation
[0012] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0013] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0014] A novel moving mold for a die-casting machine, such as Figures 1 to 5As shown, the device includes a front moving template 1, a clamping cylinder 4, a rear moving template 2, and a cylinder sleeve 3. One side of the front moving template 1 is a mounting surface 101 for mounting the mold. Each of the four corners of the mounting surface 101 has a through-hole goblin hole 104. The other side is a bearing surface 102. A disc-shaped piston connecting seat 103 is integrally formed on the bearing surface 102. The number of piston connecting seats 103 is set according to the tonnage of the die-casting machine and the clamping force requirements, and they are evenly distributed in the middle of two adjacent goblin holes 104 to ensure that the clamping force is evenly transmitted. An extension sleeve 105 is fixedly fitted to the inner wall of the tie rod hole 104 of the front moving template 1 via an interference fit. The extension sleeve 105 is made of high-strength alloy steel to enhance support strength. The end of the extension sleeve 105 away from the tie rod hole 104 is welded to the piston connecting seat 103 via at least two symmetrically arranged tie rods 106. The tie rods 106 are also made of high-strength steel, which restrict the warping deformation of the extension sleeve 105, thereby constraining the overall deformation of the front moving template 1. The rear moving template 2 has a cylindrical cavity that matches the shape of the cylinder liner 3. The cylinder liner 3 is embedded in the cavity and seals against the inner wall of the cavity to form the cylinder structure of the locking cylinder 4. The cylinder liner 3 is made of wear-resistant alloy material to improve service life. The cylinder liner 3 includes two structural types: a cylinder liner 301 without a cylinder bottom and a cylinder liner 302 with a cylinder bottom. The bottom outer peripheral wall of the cylinder liner 301 without a cylinder bottom is provided with an annular gripping groove 3011. When disassembly is required, the claws of the three-jaw cylinder liner puller can be inserted into the gripping groove 3011, and the cylinder liner 301 can be taken out of the cavity by pulling force. The outlet end of the cylinder liner 302 with a cylinder bottom is integrally formed with a flange 3021. The flange 3021 is provided with bolt holes. The flange 3021 is fixed to the rear moving template 2 by bolts. When disassembling, the cylinder liner 302 can be taken out by simply unscrewing the bolts. Both structures realize convenient disassembly and assembly of the cylinder liner 3.
[0015] In use, the front moving template 1 is fixed to the moving mold via the mounting surface 101, and the rear moving template 2 cooperates with the locking cylinder 4. The locking cylinder 4 cooperates with the front moving template 1 via the piston connecting seat 103. The front moving template 1 and the rear moving template 2 are connected to the guide rail mounted on the die-casting machine tool body for installation. When the mold is closed, the locking force is applied to the front moving template 1 and the rear moving template 2. The tie rod 106 restricts the extension sleeve 105 from warping, effectively reducing the deformation of the front moving template 1. When the cylinder sleeve 3 is worn, the corresponding disassembly tool can be selected according to the type of cylinder sleeve 3 to quickly replace the cylinder sleeve 3 without replacing the entire template, thus reducing maintenance costs.
[0016] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A novel moving template for a die-casting machine, comprising a front moving template (1), a rear moving template (2), and a locking cylinder (4), characterized in that: The front moving template (1) is connected to the rear moving template (2) through the mold locking cylinder (4). The front moving template (1) includes a mounting surface (101) and a pressure bearing surface (102) arranged opposite to each other on both sides. The mounting surface (101) is used to install the mold. There are through-holes (104) at the four corners of the mounting surface (101). The pressure bearing surface (102) is provided with piston connecting seats (103). The piston connecting seats (103) are evenly distributed in the middle position of two adjacent connecting holes (104). An extension sleeve (105) is fixedly fitted at the goring post hole (104) of the front moving template (1). The end of the extension sleeve (105) away from the goring post hole (104) is fixedly connected to the piston connecting seat (103) through a tie rod (106). The tie rod (106) is used to limit the warping deformation of the extension sleeve (105), thereby reducing the overall deformation of the front moving template (1).
2. The novel moving template of a die-casting machine according to claim 1, characterized in that: The rear moving template (2) is provided with a cavity, and a detachable embedded oil cylinder sleeve (3) is provided in the cavity to form a cylinder structure of a locking cylinder (4).
3. A novel moving template for a die-casting machine according to claim 2, characterized in that: The cylinder liner (3) includes two types: cylinder liner with cylinder bottom (302) and cylinder liner without cylinder bottom (301). The cylinder liner without cylinder bottom (301) has a gripping groove (3011) at the bottom position, which facilitates the removal and disassembly by a three-jaw cylinder liner puller. The outlet end of the cylinder liner (302) with cylinder bottom oil is provided with a flange (3021) structure for easy disassembly and assembly. Both the cylinder liner with cylinder bottom oil (302) and the cylinder liner without cylinder bottom oil (301) are adapted to the cavity of the rear moving template (2).