Ductile iron pipe fitting template mold
By setting the flange inner runner and the spigot annular runner on the mold base, the problem of poor flange forming of large-size pipe fittings was solved, and better flange forming effect and mold strength were achieved.
Patent Information
- Application Number
- CN202423070024.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-12-12
AI Technical Summary
When producing large-size pipe fittings, the existing mold plate is not properly positioned to fill the flange position, resulting in poor flange forming effect, especially the shrinkage problem.
An inner runner for the flange is set on the base, which, together with the protrusion of the pipe body and the annular runner of the spigot, forms a shrinkage compensation system to ensure that the casting system can effectively form the pipe flange and avoid shrinkage.
This improves the forming quality of pipe flanges, ensures better flange forming results, and enhances the strength and service life of the mold.
Smart Images

Figure CN223603392U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to die technical field especially relates to a nodular cast iron pipe fitting plate mould. BACKGROUND
[0002] The plate mould is an important industrial technology and equipment, which makes the shape, size, structure and the like of products completely consistent in batch production through manufacturing a mould. The pouring system on the plate mould is not good at supplementing the flange position of the pipe fitting during production of the large-size pipe fitting, so that the flange of the pipe fitting is shrunk and the flange forming effect is poor.
[0003] For example, a large three-way pipe fitting pressing die is disclosed in CN204936011U and published on January 6, 2016, which comprises an upper die plate provided with an upper die and a lower die plate provided with a lower die, a guide column is installed between the upper die plate and the lower die plate, a die sleeve is further arranged between the upper die plate and the lower die plate, one end of the die sleeve abuts against the upper die plate, the other end of the die sleeve is installed on the lower die plate through a pin, a core for forming a pipe hole is arranged between the upper die and the lower die, the core penetrates the die sleeve and is connected with a pull ring, the upper die, the lower die, the die sleeve and the core form a forming cavity of the three-way pipe fitting. The above-mentioned die cannot realize convenient forming of the flange on the pipe fitting and has poor practicability. SUMMARY
[0004] The utility model discloses a kind of nodular cast iron pipe fitting plate moulds, and the flange forming effect on pipe fitting is better. The utility model discloses by being provided with flange disc ingate on base, to ensure that pouring system can supplement pipe fitting flange disc, avoid pipe fitting flange disc shrinkage problem, to ensure that pipe fitting flange forming quality is better.
[0005] To achieve the above object, the technical scheme adopted by the utility model to solve its technical problems is: a kind of nodular cast iron pipe fitting plate mould, including base, the base is provided with pipe body protrusion, the pipe body protrusion is provided with flange protrusion, the base is provided with the flange disc ingate connected with flange protrusion.
[0006] The pipe body protrusion is provided with spout ring ingate.
[0007] The base is provided with two pipe body protrusions, and the two pipe body protrusions are arranged in parallel with each other, and the flange protrusions on the two pipe body protrusions are respectively directed to the two ends of the base.
[0008] A straight ingate nest is arranged between the two pipe body protrusions.
[0009] Horizontal ingates are arranged on the two sides of the straight ingate nest.
[0010] The base is provided with reinforcing ribs.
[0011] The base is provided with mounting holes.
[0012] The beneficial effects of this utility model are:
[0013] The inclusion of an internal runner in the flange facilitates the molding process of the pipe fitting. The casting system of the mold can compensate for the shrinkage of the pipe fitting flange, avoiding the problem of flange shrinkage and thus ensuring better forming quality of the pipe fitting flange. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of the mold for the ductile iron pipe fitting of this utility model.
[0015] Figure 2 for Figure 1 Another perspective illustration.
[0016] In the attached diagram: 1-base, 2-pipe body protrusion, 201-flange protrusion, 3-insertion annular runner, 4-inner runner of flange, 5-sprue recess, 6-horizontal runner, 7-reinforcing rib, 8-mounting hole. Detailed Implementation
[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0018] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.
[0019] like Figures 1-2 As shown, the ductile iron pipe fitting mold includes a base 1, a pipe body protrusion 2 on the base 1, a flange protrusion 201 on the pipe body protrusion 2, and a flange ingate 4 connected to the flange protrusion 201 on the base 1. Specifically, the flange ingate 4 is located on the side of the flange protrusion 201, and the cross-section of the flange ingate 4 is circular.
[0020] When in use, the setting of the inner runner 4 of the flange facilitates the molding of the pipe fitting. The casting system of the mold can compensate for the shrinkage of the pipe fitting flange, avoiding the problem of the pipe fitting flange shrinkage, thereby ensuring better pipe fitting flange molding quality.
[0021] The tube body protrusion 2 is provided with a spigot annular gating channel 3, which facilitates the forming of the tube body during the casting process. Specifically, the spigot annular gating channel 3 includes a U-shaped end provided on the tube body protrusion 2 and a straight section provided on the base 1.
[0022] The base 1 is provided with two pipe body protrusions 2, the two pipe body protrusions 2 are arranged in parallel with each other, and the flange protrusions 201 on the two pipe body protrusions 2 are respectively directed to the two ends of the base 1, so as to facilitate the convenient molding of two pipe fittings on a mold, and the flange protrusions 201 on the two pipe body protrusions 2 are staggered.
[0023] The straight sprue recess 5 is arranged between the two pipe body protrusions 2.
[0024] The straight sprue recess 5 is arranged between the two pipe body protrusions 2.
[0025] The base 1 is provided with a reinforcing rib 7, and the reinforcing rib 7 is arranged to facilitate the increase of the strength of the entire base 1, thereby increasing the strength of the entire mold plate mold, so as to increase the service life of the mold.
[0026] The base 1 is provided with a mounting hole 8, so as to facilitate the installation and movement of the entire device, and the mounting hole 8 can also be provided with a lifting ring, so as to facilitate the movement of the entire mold.
[0027] The above only describes the preferred embodiments of the present application, and is not used to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A ductile iron pipe section mold characterized by, It includes a base (1), which is provided with a tube body protrusion (2), and the tube body protrusion (2) is provided with a flange protrusion (201), and the base (1) is provided with a flange plate inner gate (4) connected with the flange protrusion (201).
2. The ductile iron pipe section mold of claim 1, wherein, The tube body protrusion (2) is provided with a socket annular gate (3).
3. The ductile iron pipe section mold of claim 1, wherein, The base (1) is provided with two tube body protrusions (2), and the two tube body protrusions (2) are arranged in parallel with each other, and the flange protrusions (201) on the two tube body protrusions (2) are respectively directed to the two ends of the base (1).
4. The ductile iron pipe section mold of claim 1, wherein, A straight gate nest (5) is arranged between the two tube body protrusions (2).
5. The ductile iron pipe section mold of claim 4, wherein, The straight gate nest (5) is respectively provided with a cross gate (6) on both sides.
6. The ductile iron pipe section mold as set forth in any one of claims 1 to 5, characterized in that, The base (1) is provided with a reinforcing rib (7).
7. The ductile iron pipe section mold of claim 6, wherein, The base (1) is provided with a mounting hole (8).
Citation Information
Patent Citations
Large -scale tee bend is embossing mold utensil for pipe fitting
CN204936011U