Bent pipe gravity casting mold
By designing a bent pipe gravity casting mold including an upper and lower die core, and using gravity casting and flip casting technology, the problems of many surface slag holes and unsuitable wall thickness in the bent pipe processing in the prior art are solved, and the product appearance quality is improved and the T6 treatment is met.
Patent Information
- Application Number
- CN202421946566.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-12
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-08-12
AI Technical Summary
During the high-pressure die-casting process of existing bent pipe gravity casting molds, the product has many slag holes on the surface and is not suitable for bent pipes with large wall thickness. The proportion of bubbles after heat treatment is large, resulting in 20% of unqualified products.
A bent pipe gravity casting mold including an upper die core and a lower die core is designed, and four parallel cavity and two runners are formed through the upper die support column and the lower die support column. The gravity casting method is adopted and the flip device is used to pour while flipped.
It has achieved improvement in product appearance quality, can meet the requirements of T6 treatment, reduce the proportion of unqualified products, and is suitable for bending pipes with larger wall thickness.
Smart Images
Figure CN222944453U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of molds, and in particular relates to a gravity casting mold for a bent pipe. Background Art
[0002] The existing elbow gravity casting mold is designed by high-pressure die casting. The product has many slag holes on the surface. At the same time, the elbow needs to be treated with T6. The product has a large bubble ratio after heat treatment, and 20% is unqualified.
[0003] The characteristic of aluminum alloy high pressure casting is that the product surface appearance is clear, but the internal structure is not very dense, which is not suitable for the processing of elbows with thicker walls. Utility Model Content
[0004] The utility model aims to solve the above technical problems at least to a certain extent. To this end, the utility model aims to provide a gravity casting mold for a bent pipe.
[0005] The technical solution adopted by the utility model is:
[0006] A curved pipe gravity casting mold comprises an upper mold core and a lower mold core, wherein the upper mold core is provided with an upper mold support column, and the lower mold core is provided with a lower mold support column, and the upper mold core and the lower mold core are closed to form four parallel cavities and two flow channels, wherein one flow channel is located between a first cavity and a second cavity, and the two sides of the flow channel are respectively connected to the first cavity and the second cavity; the other flow channel is located between a third cavity and a fourth cavity, and the two sides of the flow channel are respectively connected to the third cavity and the fourth cavity.
[0007] Preferably, the lower mold core is provided with two lower mold feet, each of which is provided with a lower mold pressing plate. An ejector plate is provided between the two lower mold feet, the lower mold support column is slidably provided on the ejector plate, and a plurality of ejector rods are provided on the ejector plate, which are slidably provided on the lower mold core.
[0008] Preferably, the upper mold core is provided with two upper mold feet, each of which is provided with an upper mold pressing plate. The lower mold core is provided with a positioning column, and the upper mold core is provided with a positioning hole matching the positioning column.
[0009] Preferably, a sliding block is provided on the lower mold core, the sliding block is installed on the lower mold core through four connecting rods, and a sliding groove matching the connecting rod is provided on the upper mold core.
[0010] The beneficial effects of the utility model are:
[0011] The elbow gravity casting mold provided by the utility model adopts a gravity casting method, and pours while turning with the help of a turning device, so that the product has good appearance quality and can meet the requirements of T6 treatment. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic diagram of the utility model of the gravity casting mold of the bent pipe.
[0013] Figure 2 It is a schematic diagram of the upper mold core of the utility model.
[0014] Figure 3 It is a schematic diagram of the lower mold core of the utility model.
[0015] In the figure: 1-upper mold core; 2-lower mold core; 3-upper mold support column; 4-lower mold support column; 5-cavity; 6-flow channel; 7-upper mold foot; 8-upper mold pressure plate; 9-lower mold foot; 10-lower mold pressure plate; 11-ejector plate; 12-ejector rod; 13-slider; 14-connecting rod; 15-slide; 16-positioning column; 17-positioning hole. DETAILED DESCRIPTION
[0016] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention. The components of the embodiments of the present invention generally described and shown in the accompanying drawings herein can be arranged and designed in a variety of different configurations.
[0017] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal connection of two elements.
[0018] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0019] like Figures 1 to 3 As shown, the gravity casting mold for bent pipes in this embodiment includes an upper mold core 1 and a lower mold core 2. The upper mold core 1 is provided with an upper mold support column 3, and the lower mold core 2 is provided with a lower mold support column 4. The upper mold core 1 and the lower mold core 2 are closed to form four parallel cavities 5 and two runners 6, one of which is located between the first cavity 5 and the second cavity 5, and the two sides of the runner 6 are connected to the first cavity 5 and the second cavity 5 respectively; the other runner 6 is located between the third cavity 5 and the fourth cavity 5, and the two sides of the runner 6 are connected to the third cavity 5 and the fourth cavity 5 respectively. The four cavities 5 can realize the casting of four products at a time, thereby improving production efficiency.
[0020] The upper mold core 1 is provided with two upper mold feet 7, and each upper mold foot 7 is provided with an upper mold pressing plate 8. The lower mold core 2 is provided with two lower mold feet 9, and each lower mold foot 9 is provided with a lower mold pressing plate 10. An ejector plate 11 is provided between the two lower mold feet 9, and the lower mold support column 4 is slidably penetrated through the ejector plate 11. The ejector plate 11 is provided with a plurality of ejector rods 12, and the ejector rods 12 are slidably penetrated through the lower mold core 2. When the ejector plate 11 is in motion, it can drive the ejector rods 12 to push the product and the upper mold core 1.
[0021] The lower mold core 2 is provided with a slider 13, which is mounted on the lower mold core 2 through four connecting rods 14, and the upper mold core 1 is provided with a slide groove 15 matching the connecting rod 14. The lower mold core 2 is provided with a positioning column 16, and the upper mold core 1 is provided with a positioning hole 17 matching the positioning column 16. When the upper mold core 1 and the lower mold core 2 are closed, the positioning column 16 is located in the positioning hole 17 to achieve positioning.
[0022] The upper mold core 1 and the lower mold core 2 are both made of 45# steel, which is lower in cost than the die-casting mold core material in the prior art, which is made of relatively expensive H13 steel.
[0023] The present utility model is not limited to the above-mentioned optional implementation modes. Anyone can derive other various forms of products under the inspiration of the present utility model. However, no matter what changes are made in the shape or structure, all technical solutions that fall within the scope defined by the claims of the present utility model fall within the protection scope of the present utility model.
Claims
1. A pipe bending gravity casting mold, characterized in that: The mold comprises an upper mold core (1) and a lower mold core (2); an upper mold support column (3) is provided on the upper mold core (1); a lower mold support column (4) is provided on the lower mold core (2); the upper mold core (1) and the lower mold core (2) are closed to form four parallel mold cavities (5) and two flow channels (6); one of the flow channels (6) is located between the first mold cavity (5) and the second mold cavity (5), and the two sides of the flow channel (6) are respectively connected to the first mold cavity (5) and the second mold cavity (5); the other flow channel (6) is located between the third mold cavity (5) and the fourth mold cavity (5), and the two sides of the flow channel (6) are respectively connected to the third mold cavity (5) and the fourth mold cavity (5).
2. The pipe bending gravity casting mold according to claim 1, characterized in that: The lower mold core (2) is provided with two lower mold feet (9), and each lower mold foot (9) is provided with a lower mold pressing plate (10).
3. The pipe bending gravity casting mold according to claim 2, characterized in that: An ejector plate (11) is provided between the two lower mold legs (9), a lower mold support column (4) is slidably inserted into the ejector plate (11), a plurality of ejector rods (12) are provided on the ejector plate (11), and the ejector rods (12) are slidably inserted into the lower mold core (2).
4. The elbow gravity casting mold according to claim 1, characterized in that: The upper mold core (1) is provided with two upper mold legs (7), and each upper mold leg (7) is provided with an upper mold pressing plate (8).
5. The pipe bending gravity casting mold according to claim 1, characterized in that: The lower mold core (2) is provided with a slider (13), the slider (13) is installed on the lower mold core (2) through four connecting rods (14), and the upper mold core (1) is provided with a slide groove (15) matching the connecting rod (14).
6. The pipe bending gravity casting mold according to claim 1, characterized in that: The lower mold core (2) is provided with a positioning column (16), and the upper mold core (1) is provided with a positioning hole (17) matching the positioning column (16).
7. The pipe bending gravity casting mold according to claim 1, characterized in that: The upper mold core (1) and the lower mold core (2) are both made of 45# steel.