Auxiliary cooling device for sand casting castings
By using a cooling device with a cooling rod inserted into the molding sand in sand casting, combined with cylinder control, efficient casting cooling is achieved, solving the problem of long cooling time in existing technologies and improving casting production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-09
- Publication Date
- 2026-04-07
AI Technical Summary
In existing sand casting, cooling methods mainly rely on external ambient temperature control and air circulation speed, which have unsatisfactory auxiliary effects, and the cooling time of the casting is relatively long after casting is completed.
Design an auxiliary cooling device that includes a mounting base, a pipe fixing bracket, a control mechanism, and a cooling mechanism. The device uses a cooling rod inserted into the molding sand of the casting mold to directly transfer heat through cooling water. The insertion depth and position are adjusted by controlling the extension and retraction of the rod with a cylinder, thereby achieving efficient cooling.
Direct contact cooling significantly shortens the cooling time of castings, improves cooling efficiency, and ensures that the quality of castings is not affected.
Smart Images
Figure CN224087951U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to sand casting production technical field especially relates to a sand casting casting auxiliary cooling device. BACKGROUND
[0002] Sand casting refers to the casting method in sand mould production castings. Steel, iron and most non-ferrous alloy castings can be obtained by sand casting method. Because the molding material used in sand casting is cheap and easy to obtain, the casting mold manufacturing is simple, and it can adapt to single production, batch production and mass production of castings. For a long time, it has been a basic process in casting production.
[0003] Before casting, a needle is used to punch an exhaust hole on the top of the sand mold. In order to avoid affecting the cavity, the depth of the needle inserted needs to be strictly controlled. After casting is completed, it takes a lot of time to cool the internal casting to shape. The existing cooling means mainly controls the external environment temperature and increases the air flow speed, which has very poor auxiliary effect. SUMMARY
[0004] The utility model discloses a kind of sand casting casting auxiliary cooling devices for the defects in prior art.
[0005] The utility model is realized by the following technical solutions:
[0006] A sand casting casting auxiliary cooling device, including mounting seat, pipeline fixing frame, control mechanism and cold cutting mechanism, the pipeline fixing frame is fixedly arranged at the top of the mounting seat both ends, the control mechanism is arranged at the top of mounting seat, the cooling mechanism is connected with control mechanism, the control mechanism includes cylinder, support frame and connecting frame, the support frame is fixedly arranged at the telescopic end of the cylinder, the connecting frame is fixedly arranged at the top of support frame, the cooling mechanism includes transmission pipe, cooling pipe, connecting pipe, water retaining flow guide piece and cooling plug rod, the cooling pipe is fixedly connected vertically with transmission pipe, the connecting pipe is arranged in cooling pipe middle part, the water retaining flow guide piece is fixed with connecting pipe surface, the cooling plug rod is clamped in connecting pipe.
[0007] In a preferred embodiment of the utility model, the cooling pipe outside top is provided with flow guide hole, one end of water retaining flow guide piece is fixed with the inner wall of cooling pipe, and flow guide hole is arranged at the outside of both sides of water retaining flow guide piece respectively.
[0008] In a preferred embodiment of the utility model, the connecting pipe bottom penetrates and extends to the bottom outside of cooling pipe, and the bottom of water retaining flow guide piece is higher than the bottom inside of cooling pipe.
[0009] Cooling water flows in through the guide hole at one end of the top of the cooling pipe and is blocked by the water-blocking guide plate. The cooling water then flows in from the bottom of the water-blocking guide plate and rises, flowing out from the guide hole at the other end of the cooling pipe, thus ensuring that the cooling water fully contacts the connecting pipe.
[0010] In a preferred embodiment of this utility model, the top outer side of the cooling rod is provided with a thread, the cooling rod and the connecting frame are connected by the thread, and an operation knob is fixedly provided at the top of the cooling rod;
[0011] The length of the cooling insert extending from the bottom of the connecting pipe is adjusted by the thread on the outer top, thus ensuring that the cooling insert does not affect the quality of the casting after being inserted into the molding sand.
[0012] In a preferred embodiment of this utility model, both ends of the transmission pipe are fixedly connected to the pipe fixing frame, and the top of the pipe fixing frame is provided with a locking hole that cooperates with the transmission pipe.
[0013] The pipe fixing bracket is mainly used to fix the transmission pipe, thereby facilitating the fixing of the cooling mechanism.
[0014] In a preferred embodiment of the present invention, the bottom of the connecting pipe extends through and to the inner side of the top of the mounting base.
[0015] The beneficial effects of this utility model are:
[0016] This auxiliary cooling device for sand casting effectively adjusts the position of the cooling rod according to the shape and size of the casting. The cooling rod is inserted into the top sand of the casting mold by means of a cylinder. The high temperature in the sand is absorbed by heat transfer and the heat is carried away by water cooling. During the cooling process, the cooling rod can be raised so that the part inserted into the sand can be contracted into the connecting pipe for better cooling, thereby achieving a better auxiliary cooling effect for the casting. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of the auxiliary cooling device for sand casting of this utility model.
[0018] Figure 2 This is a schematic diagram of the control mechanism of the auxiliary cooling device for sand casting of this utility model;
[0019] Figure 3 This is a schematic diagram of the cooling mechanism structure of the auxiliary cooling device for sand casting of this utility model;
[0020] Figure 4 This is a schematic diagram of the cooling pipe structure of the auxiliary cooling device for sand casting of this utility model;
[0021] Figure 5 This is a schematic diagram of the internal structure of the cooling pipe of the auxiliary cooling device for sand casting of this utility model.
[0022] In the diagram: 1. Mounting base; 2. Pipe fixing bracket; 3. Control mechanism; 31. Cylinder; 32. Support frame; 33. Connecting frame; 4. Cooling mechanism; 41. Transmission pipe; 42. Cooling pipe; 43. Connecting pipe; 44. Water baffle; 45. Cooling rod. Detailed Implementation
[0023] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings, so that the advantages and features of this utility model can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of this utility model. The directional terms mentioned in this utility model, such as "up," "down," "front," "back," "left," "right," "top," and "bottom," are only for reference to the accompanying drawings. Therefore, the directional terms used are for the purpose of explaining and understanding this utility model, and not for limiting this utility model.
[0024] like Figures 1-5 The auxiliary cooling device for sand casting shown includes a mounting base 1, a pipe fixing frame 2, a control mechanism 3, and a cooling mechanism 4. The pipe fixing frame 2 is fixedly installed at both ends of the top of the mounting base 1. The control mechanism 3 is installed on the top of the mounting base 1. The cooling mechanism 4 is connected to the control mechanism 3. The control mechanism 3 includes a cylinder 31, a support frame 32, and a connecting frame 33. The support frame 32 is fixedly installed at the telescopic end of the cylinder 31, and the connecting frame 33 is fixedly installed on the top of the support frame 32. The cooling mechanism 4 includes a transmission pipe 41, a cooling pipe 42, a connecting pipe 43, a water-blocking guide plate 44, and a cooling rod 45. The cooling pipe 42 is vertically and fixedly connected to the transmission pipe 41. The connecting pipe 43 is located in the middle of the cooling pipe 42. The water-blocking guide plate 44 is fixed to the surface of the connecting pipe 43. The cooling rod 45 is inserted into the connecting pipe 43.
[0025] Specifically, a guide hole is provided on the top of the outer side of the cooling pipe 42, one end of the water-blocking guide plate 44 is fixed to the inner wall of the cooling pipe 42, and the guide holes are respectively set on the outer sides of both sides of the water-blocking guide plate 44. The bottom of the connecting pipe 43 passes through and extends to the outer side of the bottom of the cooling pipe 42. The bottom of the water-blocking guide plate 44 is higher than the inner side of the bottom of the cooling pipe 42. The top of the outer side of the cooling rod 45 is provided with a thread. The cooling rod 45 is connected to the connecting bracket 33 by the thread. An operating knob is fixedly provided at the top of the cooling rod 45. Both ends of the transmission pipe 41 are fixedly connected to the pipe fixing bracket 2. The top of the pipe fixing bracket 2 is provided with a locking hole that cooperates with the transmission pipe 41. The bottom of the connecting pipe 43 passes through and extends to the inner side of the top of the mounting base 1.
[0026] In this embodiment, the entire device is mounted on top of the sand mold. To facilitate the opening of the heat dissipation and venting holes, the insertion position and depth of the corresponding cooling rod 45 are first adjusted according to the size and position of the internal cavity. By rotating the operating knob on the top of the cooling rod 45 according to the insertion depth, the length of the cooling rod 45 extending out of the bottom of the connecting tube 43 can be adjusted according to the threaded connection area between its surface and the connecting frame 33. Then, the cylinder 31 is controlled to descend, and the cylinder 31 drives the support frame 32 to descend, thereby causing the support frame 32 to drive its top connecting frame 33 to descend. At this time, the cooling rod 45 threadedly connected to the connecting frame 33 will be inserted into the molding sand at the top of the sand casting mold, and the cylinder 31 rises, achieving the purpose of opening venting holes at the top of the mold.
[0027] Furthermore, after casting is completed, to facilitate the cooling of the casting, a cooling water circuit is connected to the transmission pipe 41. Cooling water enters from one end of the transmission pipe 41 and flows into the cooling pipe 42. Blocked by the cooling pipe 42 and the water-blocking guide plate 44 on its outer surface, the cooling water flows out from the bottom of the water-blocking guide plate 44 and surges upward, flowing out from another guide hole on the top of the outer side of the cooling pipe 42 to the next cooling pipe 42. In this way, the cooling rod 45, which is stuck in the connecting pipe 43, will be effectively cooled. After the cylinder 31 drives the cooling rod 45 to be inserted into the molding sand, the heat is guided by the cooling rod 45 and transferred to the cooling water to achieve effective cooling. When the temperature of the end of the cooling rod 45 inserted into the molding sand is too high, the cylinder 31 rises to bring the end inserted into the molding sand into the connecting pipe 43 for cooling. Then the cooling rod 45 is inserted into the molding sand again for cooling, thereby achieving the ideal effect of auxiliary cooling and auxiliary casting forming.
[0028] It should be noted that the parts not covered in this utility model are the same as or can be implemented using existing technology; the various drives in this utility model can be implemented by corresponding power structures such as cylinders, oil cylinders, electric cylinders, and motors in conjunction with connecting rods, guide rods, etc., and are not limited to the structures described in the specification and the drawings.
[0029] In the description of the embodiments of this utility model, unless otherwise expressly specified and limited, the terms "installed," "connected," "linked," "set up," "equipped with," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0030] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.
Claims
1. An auxiliary cooling device for sand casting, comprising a mounting base (1), a pipe fixing bracket (2), a control mechanism (3), and a cooling mechanism (4), characterized in that: The pipe fixing bracket (2) is fixedly installed at both ends of the top of the mounting base (1), the control mechanism (3) is installed on the top of the mounting base (1), and the cooling mechanism (4) is connected to the control mechanism (3); The control mechanism (3) includes a cylinder (31), a support frame (32) and a connecting frame (33). The support frame (32) is fixedly installed on the telescopic end of the cylinder (31), and the connecting frame (33) is fixedly installed on the top of the support frame (32). The cooling mechanism (4) includes a transmission pipe (41), a cooling pipe (42), a connecting pipe (43), a water-blocking guide plate (44), and a cooling rod (45). The cooling pipe (42) is vertically and fixedly connected to the transmission pipe (41). The connecting pipe (43) is located in the middle of the cooling pipe (42). The water-blocking guide plate (44) is fixed to the surface of the connecting pipe (43). The cooling rod (45) is inserted into the connecting pipe (43).
2. The auxiliary cooling device for sand castings according to claim 1, characterized in that: The cooling pipe (42) has a guide hole on the top of its outer side. One end of the water-blocking guide plate (44) is fixed to the inner wall of the cooling pipe (42), and the guide holes are respectively set on the outer sides of the water-blocking guide plate (44).
3. The auxiliary cooling device for sand castings according to claim 1, characterized in that: The bottom of the connecting pipe (43) extends through and to the outside of the bottom of the cooling pipe (42), and the bottom of the water baffle (44) is higher than the inside of the bottom of the cooling pipe (42).
4. The auxiliary cooling device for sand castings according to claim 1, characterized in that: The cooling rod (45) has a thread on its outer top, and the cooling rod (45) is connected to the connecting frame (33) by the thread. An operating knob is fixedly installed at the top of the cooling rod (45).
5. The auxiliary cooling device for sand castings according to claim 1, characterized in that: The two ends of the transmission pipe (41) are fixedly connected to the pipe fixing frame (2), and the top of the pipe fixing frame (2) is provided with a locking hole that cooperates with the transmission pipe (41).
6. The auxiliary cooling device for sand castings according to claim 1, characterized in that: The bottom of the connecting tube (43) extends through and to the inside of the top of the mounting base (1).