Non-riser casting model structure for support
Through the design of the riser-free casting model structure, the problems of low step retention rate and poor shrinkage in bracket casting are solved, high yield and strength improvement are achieved, and sand blasting and slag eye defects are reduced.
Patent Information
- Application Number
- CN202422351002.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-09-25
AI Technical Summary
In the existing bracket casting process, the step retention rate is low, shrinkage holes are common, and sand easily falls off in areas with weak sand strength.
The casting model structure without riser is adopted, including the design of gate cup, horizontal runner, main vertical runner, diversion vertical runner, water inlet plate and slag collecting block. The mirror image S-shaped water inlet plate and multiple filtration are used to reduce sand washing and slag eye defects and improve the yield of finished products.
It improves the casting yield rate, reduces shrinkage holes and sand loss defects, enhances the strength of the molding sand, and improves production efficiency.
Smart Images

Figure CN223476256U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive parts manufacturing and processing, and in particular to a riserless casting mold structure for brackets. Background Technology
[0002] Brake brackets are crucial components of automotive braking systems. They work in conjunction with the brake caliper to form the braking system. As these are critical safety parts, the performance requirements for brake brackets are extremely stringent, resulting in very demanding manufacturing processes. Brake brackets are typically produced using casting processes. The weight and size of castings range widely, from a few grams to 400 tons, with wall thicknesses from a mere 0.5 millimeters to over 1 meter, and lengths from a few millimeters to tens of meters, meeting the requirements of various industrial sectors. Currently, the industry standard for brake bracket design involves feeding molten iron through a pouring cup, horizontal runner, vertical runner, and sprue, with risers providing feeding. However, this method often results in low shrinkage rates and poor shrinkage cavities.
[0003] For bracket products, by rationally arranging the casting process and utilizing the effect of static pressure, the thermal points of the casting itself can be mutually influenced, which can improve the casting yield with a simple casting process. Utility Model Content
[0004] The main objective of this invention is to propose a riser-free casting model structure for support structures, which overcomes the above-mentioned technical problems.
[0005] To achieve the above objectives, the present invention proposes the following technical solution:
[0006] A riserless casting mold structure for support-type structures, comprising:
[0007] A pouring cup for the molten metal to enter;
[0008] The horizontal runner connects to one side below the pouring cup;
[0009] The main vertical runner is connected to the end of the horizontal runner away from the pouring cup 1 and extends downward;
[0010] Multiple branch vertical runners are distributed on both sides of the main vertical runner and are connected to the main vertical runner respectively;
[0011] The water inlet plate is connected to the side of the branch vertical runner away from the main vertical runner and extends outward;
[0012] A casting, attached to the end of the inlet plate furthest from the inlet plate.
[0013] Furthermore, a slag collection block is connected to the bottom of the diversion vertical pouring channel.
[0014] Furthermore, the water inlet plate is S-shaped or a mirror-S-shaped.
[0015] Furthermore, the inlet of the pouring cup is designed to be square.
[0016] Furthermore, the height of the horizontal runner is 24mm.
[0017] Furthermore, the main vertical runner features a transitional design that is wider at the top and narrower at the bottom, with a top width of 24mm and a bottom width of 11mm.
[0018] Furthermore, the width of the branch runner is 14mm.
[0019] Furthermore, the length of the water-immersing plate is 45mm and the thickness is 7.5mm.
[0020] Furthermore, the slag collection block consists of two cylinders, one with a diameter of 20mm, a height of 250mm, and an inclination of 5°.
[0021] Furthermore, the bottom of the pouring cup is designed with a rounded shape.
[0022] The present invention provides a riserless casting model structure for support structures, which solves the problems of low step retention rate and frequent shrinkage cavities in existing equipment. It has the advantages of high yield, eliminates weak areas of molding sand strength, reduces sand loss, and effectively reduces sand flushing defects through the mirror S-shape. Attached Figure Description
[0023] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:
[0024] Figure 1 This is a schematic diagram of a riserless casting model structure for support types.
[0025] The above drawings include the following reference numerals:
[0026] 1. Pour cup; 2. Horizontal runner; 3. Main sprue; 4. Branch sprue; 5. Slag collection block; 6. Water inlet plate; 7. Casting. Detailed Implementation
[0027] 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. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0028] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.
[0029] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.
[0030] Reference below Figure 1 The present invention will be further described below:
[0031] A riserless casting mold structure for support-type structures, comprising:
[0032] Pour cup 1, for the molten metal to enter;
[0033] The horizontal runner 2 is connected to one side below the pouring cup 2;
[0034] The main vertical runner 3 is connected to the end of the horizontal runner 2 away from the pouring cup 1 and extends downward;
[0035] Multiple branch vertical runners 4 are distributed on both sides of the main vertical runner 3 and are connected to the main vertical runner 3 respectively;
[0036] The water inlet plate 6 is connected to the side of the branch vertical gating channel 4 away from the main vertical gating channel 3 and extends outward;
[0037] Casting 7 is connected to the end of water inlet plate 6 away from water inlet plate 6.
[0038] The bottom of the diversion vertical pouring channel 4 is connected to a slag collection block 5.
[0039] The water inlet plate 6 is S-shaped or a mirror-S-shaped plate.
[0040] In a preferred embodiment, the water inlet plate 6 is in a mirror S-shape. When the molten iron passes through the mirror S-shape during filling, it has a climbing action, which reduces the scouring speed of the molten iron and effectively reduces sand flushing defects.
[0041] In one embodiment, the inlet of the pouring cup 1 is square.
[0042] The height of the horizontal runner 2 is 24mm.
[0043] The pouring cup 1 has a special shape. After the molten iron fills the pouring cup 1, it is rotated once inside the pouring cup 1 to filter the slag in the molten iron. Then, after entering the diversion vertical gating channel 4, it is filtered again through the slag collection block 5 to prevent slag from entering the casting body 7 and reduce slag defects.
[0044] The pouring cup 1 is connected to the horizontal runner, the horizontal runner 2 is connected to the main vertical runner 3, the horizontal runner 2 and the main vertical runner 3 are double-sided symmetrical design, the main vertical runner 3 is connected to the branch vertical runner 4, the branch vertical runner 4 is single-sided design, the bottom of the branch vertical runner 3 is connected to the slag collection block 5, the branch vertical runner is connected to the water inlet plate 6, and the water inlet plate 6 is connected to the casting 7.
[0045] The main vertical sprue 3 has a transitional design that is wider at the top and narrower at the bottom, with a top width of 24mm and a bottom width of 11mm.
[0046] In a preferred embodiment, the products are arranged in an array, and the casting of the casting 7 is completed using only the pouring cup 1, the horizontal runner 2, the vertical runner 2, and the water inlet plate 6. Riser is no longer used in the casting system, greatly improving the yield.
[0047] The width of the sprue 4 is 14mm.
[0048] The length of the water inlet plate 6 is 45mm and the thickness is 7.5mm.
[0049] The slag collection block 5 consists of two cylinders, each with a diameter of 20mm, a height of 250mm, and an inclination of 5°.
[0050] The bottom of the pouring cup 1 has a rounded design.
[0051] The riserless design adopted in this application eliminates weak areas of molding sand after sand molding, reducing sand loss and other defects.
[0052] In a preferred embodiment, the pouring cup has a square inlet and a rounded bottom design. One side of the rounded bottom protrudes and connects to a horizontal runner 2. The horizontal runner 2 has a height of 24mm and a cross-sectional area of 450mm². 2 The design features a double-sided layout, with the main vertical gating system (GG3) transitioning from a height of 24mm to 11mm, and its area increasing from 320mm². 2 Transition to 80mm 2 The double-sided design is 365mm long, and the fourth vertical runner has a height of 14mm and a cross-sectional area of 125mm². 2 The slag collection block 5 consists of two cylinders, each 20mm in diameter and 250mm in height, with a 5° inclination. The water inlet plate 6 is 45mm long, 7.5mm thick, and has a cross-sectional area of 95mm². 2 The mirrored S-shaped design allows the molten iron to rise as it enters the mold cavity of casting 7, reducing the filling speed and ensuring that the molten iron enters the casting 7 body evenly, achieving sequential solidification.
[0053] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms 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 on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.
[0054] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.
[0055] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.
Claims
1. A riserless casting mold structure for support structures, characterized in that, include: Pouring cup (1) for molten metal to enter; A horizontal runner (2) is connected to one side below the pouring cup (1); The main vertical runner (3) is connected to the end of the horizontal runner (2) away from the pouring cup (1) and extends downward; The multiple branch vertical gating channels (4) are distributed on both sides of the main vertical gating channel (3) and are respectively connected to the main vertical gating channel (3); The water inlet plate (6) is connected to the side of the branch vertical gating channel (4) away from the main vertical gating channel (3) and extends outward; Casting (7) is connected to the end of the water inlet plate (6) away from the water inlet plate (6); The horizontal runner (2) and the main vertical runner (3) are designed to be symmetrical on both sides. The main vertical runner (3) is connected to the branch vertical runner (4), which is designed on one side.
2. The riserless casting mold structure for support structures according to claim 1, characterized in that, The bottom of the diversion vertical pouring channel (4) is connected to a slag collection block (5).
3. The riserless casting model structure for support structures according to claim 1, characterized in that, The water inlet plate (6) is S-shaped or a mirror S-shaped plate.
4. The riserless casting model structure for support structures according to claim 1, characterized in that, The inlet of the pouring cup (1) is square.
5. A riserless casting mold structure for support structures according to claim 1, characterized in that, The height of the horizontal runner (2) is 24 mm.
6. A riserless casting model structure for support structures according to claim 1, characterized in that, The main vertical gating channel (3) has a transitional design that is wider at the top and narrower at the bottom, with a top width of 24mm and a bottom width of 11mm.
7. A riserless casting mold structure for support structures according to claim 1, characterized in that, The width of the branch vertical gating (4) is 14mm.
8. A riserless casting model structure for support structures according to claim 3, characterized in that, The length of the water inlet plate (6) is 45 mm and the thickness is 7.5 mm.
9. A riserless casting mold structure for support structures according to claim 2, characterized in that, The slag collection block (5) consists of two cylinders, each with a diameter of 20 mm, a height of 250 mm, and an inclination of 5°.
10. A riserless casting model structure for support structures according to claim 1, characterized in that, The bottom of the pouring cup (1) is designed with an arc shape.