Die-casting die and oil cylinder combined secondary ejection structure
Through the combination of the cylinder-driven thimble structure and the oblique guide column, the problems of product deformation and dimensional deviation during the die-casting mold release process are solved, and stable mold release and automated production are achieved.
Patent Information
- Application Number
- CN202422249746.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-13
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2034-09-13
AI Technical Summary
During the release process of existing die-casting molds, the product may be deformed and dimensional deviation due to the lack of stopping material or insufficient stopping material, and the traditional inclined pin slider mechanism may cause product damage.
The thimble structure driven by the cylinder is combined with the oblique guide column to achieve changes in the slider forming position and the relative position of the thimble. The secondary ejection operation ensures stable mold release of the product to avoid deformation and dimensional deviation.
The stable mold release of the product is achieved, which avoids deformation caused by sudden disappearance or unevenness of the holding force, and improves production efficiency and output.
Smart Images
Figure CN223277171U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of molds, in particular to a die-casting mold combined with an oil cylinder secondary ejection structure. Background Art
[0002] Die casting is a method of casting liquid die forging, a process completed on a dedicated die forging machine. The die casting machine injects molten metal into the mold through pressure, and cools it into parts in the mold cavity. The parts produced by the die casting machine are characterized by high efficiency and high precision. During the die casting production process of the die casting mold, the product leaves the fixed mold together with the movable mold, and is then pushed out of the movable mold by the ejection mechanism, thus completely separating from the mold as a whole. There are usually many die castings with special shapes or complex structures. These die castings may still not be completely demolded or damaged after being ejected from the mold once, and additional ejection actions are required to ensure that the finished product can be smoothly removed.
[0003] This product has many characteristics of the glue position mechanism. The original mold mechanism generally uses a traditional oblique pin slider. When the mold is opened, there is no material stop position or the material stop position is insufficient at the slider position, and the clamping force between the product and the slider molding position is too large, which can easily cause product deformation or even damage when the slider is pulled out, and dimensional deviation. Utility Model Content
[0004] The technical problem to be solved by the utility model is to provide a die-casting mold combined with a secondary ejection structure of an oil cylinder. When the mold is opened horizontally, the relative position changes of the slider molding position and the ejector relative to the product are controlled by the oil cylinder and the inclined guide column, thereby realizing a secondary ejection operation on the product and ensuring normal demoulding of the product without deformation and dimensional deviation.
[0005] The utility model is achieved through the following technical solutions:
[0006] A die-casting mold combined with a secondary ejection structure of an oil cylinder includes a product, a slider structure, the slider structure includes a slider forming position, a slider seat, a slider seat connecting block and an inclined guide column, the product is connected to the mold surface of the slider forming position, the slider seat is fixedly connected to the slider forming position, the inclined guide column is fixed to the fixed mold frame and is movably connected to the slider seat, and is characterized in that: the product is also connected to an ejector structure, the ejector structure includes an ejector, an ejector fixing plate, and an ejector base plate, the ejector is fixedly connected to the ejector fixing plate, passes through a hole provided in the slider structure and is movably connected to the product, the ejector base plate is fixedly connected to the ejector fixing plate, and a stretching device is fixedly connected to the side of the ejector structure opposite to the ejector, the stretching device is fixedly connected to the bracket, and the bracket is fixedly connected to the internal shell of the die-casting machine.
[0007] Furthermore, the central axes of the product, the slider structure, the ejector structure and the stretching device coincide with each other and are arranged horizontally in sequence.
[0008] Furthermore, pressure strips are movably connected to both sides of the slider structure, and the pressure strips are fixedly connected to the internal shell of the die-casting machine.
[0009] Furthermore, the inclined guide post is inserted into the through hole provided in the slider seat at an angle of 20 degrees relative to the vertical direction.
[0010] Furthermore, a gap is left between the ejector fixing plate and the slider seat.
[0011] Furthermore, in addition to one side of the ejector structure provided with the ejector, a slider seat connecting block is sleeved around the periphery, and the slider seat connecting block is fixedly connected to the slider seat by bolts.
[0012] Furthermore, the stretching device is an oil cylinder.
[0013] Furthermore, the telescopic rod of the stretching device passes through a groove provided on the slider seat connecting block and is fixedly connected to the ejector base plate.
[0014] Compared with the prior art, the present invention has the following obvious advantages:
[0015] 1. The utility model acts on the product by fixing the ejector position through the oil cylinder, thereby maintaining its stability. When the mold is opened, the slider structure moves to eliminate the holding force between the product and the slider molding position. At the same time, the oil cylinder pulls the ejector structure backward to the slider seat connecting block, driving the slider seat connecting block to move backward to complete the demoulding, thereby increasing the ejection stroke and effectively avoiding the destruction of product features due to the lack of material blocking or insufficient material blocking at the slider position during mold opening, resulting in product deformation and dimensional deviation.
[0016] Second, the utility model adopts the oil cylinder as the driving source, which can provide a stable and powerful ejection force, ensuring that the product can be stably separated from the slider molding position during ejection, and will not be deformed due to the sudden disappearance of the holding force or uneven force.
[0017] 3. The utility model realizes a secondary ejection structure by combining an oil cylinder with an inclined pin, which can realize automated and batch ejection operations, reduce manual operations, and thus improve production efficiency and output. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0019] Figure 2 It is a schematic diagram of the top structure of the utility model.
[0020] The relationship between the reference numerals and the corresponding names is as follows:
[0021] 1. Product, 2. Slider forming position, 3. Slider seat, 4. Inclined guide column, 5. Pressing strip, 6. Ejector, 7. Ejector fixing plate, 8. Ejector base plate, 9. Slider seat connecting block, 10. Bracket, 11. Stretching device. DETAILED DESCRIPTION
[0022] The present invention will be described in detail below with reference to the accompanying drawings.
[0023] like Figure 1 and Figure 2 As shown, the utility model provides a die-casting mold combined with a secondary ejection structure of an oil cylinder, including a product 1, a slider structure, an ejector structure and a stretching device 11; in this embodiment, the central axes of the product 1, the slider structure, the ejector structure and the stretching device 11 coincide with each other and are arranged horizontally in sequence, the slider structure includes a slider forming position 2, a slider seat 3, a slider connecting block 9 and an inclined guide column 4, the product 1 is connected to the mold surface of the slider forming position 2, the slider forming position 2 is fixedly connected to the slider seat 3 by bolts, and pressure strips 5 are movably connected on both sides of the slider seat 3, and the pressure strips 5 are fixedly connected to the internal housing of the die-casting machine, and the inclined guide column is fixedly connected to the fixed mold frame, inclined 20° relative to the vertical direction, and movably connected to the through hole provided in the slider seat 3; Product 1 is also connected to the ejector structure. The ejector structure includes an ejector 6, an ejector fixing plate 7, and an ejector base plate 8. The ejector 6 is fixedly connected to the ejector fixing plate 7 and is movably connected to the product 1 through the hole provided by the slider structure. A gap is left between the ejector fixing plate 7 and the slider seat 3. The ejector fixing plate 7 is fixedly connected to the ejector base plate 8 by bolts. In addition to one side of the ejector structure having the ejector 6, the slider seat connecting block 9 is also sleeved around the periphery. The slider seat connecting block 9 is fixedly connected to the slider seat 3 by bolts. The stretching device 11 is an oil cylinder. The stretching device 11 is fixedly connected to the bracket 10. The bracket 10 is fixedly connected to the internal housing of the die-casting machine. The telescopic rod of the stretching device 11 passes through the groove provided on the slider seat connecting block 9 and is fixedly connected to the ejector base plate 8.
[0024] When the present invention is in use, during the horizontal mold opening process, the inclined guide column 4 rises vertically and is pulled out from the through hole provided in the slider seat 3, generating lateral tension on the entire slider structure, pulling the slider seat 3 and the fixedly connected sliding forming position 2 to move toward the stretching device 11 under the guidance of the pressure strip 5, while the ejector base plate 8, the ejector fixing plate 7 and the ejector 6 remain stationary under the support of the stretching device 11, and the ejector 6 acts directly on the product 1 to maintain the stability of the product 1 and maintain the position of the product 1 unchanged. When the slider structure moves a certain distance, the clamping force between the product 1 and the slider forming position 2 completely disappears, and the product 1 is separated from the slider forming position 2. At this time, the stretching device 11 runs, contracts the telescopic rod, and pulls the ejector base plate 8 fixedly connected to the telescopic rod back a certain distance. After that, the ejector base plate 8 contacts the slider seat connecting block 9 again, driving the slider structure to move back to the preset position, and the product 1 is separated from the ejector 6, completing the secondary ejection of the product 1.
[0025] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those familiar with the art to understand the contents of the present invention and implement them 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 in the scope of protection of the present invention.
Claims
1. A die-casting mold combined with a secondary ejection structure of an oil cylinder, comprising a product (1), a slider structure, wherein the slider structure comprises a slider forming position (2), a slider seat (3), a slider seat connecting block (9) and an inclined guide column (4), wherein the product (1) is connected to the mold surface of the slider forming position (2), the slider seat (3) is fixedly connected to the slider forming position (2), and the inclined guide column (4) is fixed to the fixed mold frame and movably connected to the slider seat (3), characterized in that: The product (1) is also connected to a thimble structure, which includes a thimble (6), a thimble fixing plate (7), and a thimble base plate (8). The thimble (6) is fixedly connected to the thimble fixing plate (7) and is movably connected to the product (1) through a hole provided in the slider structure. The thimble base plate (8) is fixedly connected to the thimble fixing plate (7). A stretching device (11) is fixedly connected to the side of the thimble structure opposite to the side provided with the thimble. The stretching device (11) is fixedly connected to a bracket (10), and the bracket (10) is fixedly connected to the internal housing of the die-casting machine.
2. The die-casting mold combined with the oil cylinder secondary ejection structure according to claim 1, characterized in that: The central axes of the product (1), the slider structure, the ejector pin structure and the stretching device (11) coincide with each other and are arranged horizontally in sequence.
3. The die-casting mold combined with the oil cylinder secondary ejection structure according to claim 1, characterized in that: The two sides of the slider structure are movably connected with pressure strips (5), and the pressure strips (5) are fixedly connected to the internal shell of the die-casting machine.
4. The die-casting mold combined with the oil cylinder secondary ejection structure according to claim 1, characterized in that: The inclined guide column (4) is inserted into the through hole provided in the slider seat (3) at an angle of 20° relative to the vertical direction.
5. The die-casting mold combined with the oil cylinder secondary ejection structure according to claim 1, characterized in that: A gap is left between the ejector pin fixing plate (7) and the slider seat (3).
6. The die-casting mold combined with the oil cylinder secondary ejection structure according to claim 1, characterized in that: The ejector pin structure has a side with an ejector pin (6) and a slider seat connecting block (9) around it. The slider seat connecting block (9) is fixedly connected to the slider seat (3) by bolts.
7. The die-casting mold combined with a cylinder secondary ejection structure according to claim 1, characterized in that: The stretching device (11) is an oil cylinder.
8. The die-casting mold combined with the oil cylinder secondary ejection structure according to claim 7, characterized in that: The telescopic rod of the stretching device (11) passes through a groove provided on the slider seat connecting block (9) and is fixedly connected to the ejector base plate (8).