A resin sand molding line fast plugging exhaust hole device

Abstract

The application discloses a resin sand molding line fast hole-punching exhaust hole device, and belongs to the casting field. The device comprises a hole-punching column fixing plate provided with a plurality of hole-punching columns and a limiting plate provided with limiting holes corresponding to the number and positions of the hole-punching columns. One end of the plurality of hole-punching columns is fixedly connected to the hole-punching column fixing plate, and the other end penetrates through the limiting holes. The hole-punching column fixing plate and the limiting plate are arranged in parallel and are connected through a distance adjusting mechanism. The distance adjusting mechanism can adjust the vertical distance between the hole-punching column fixing plate and the limiting plate to adjust the hole-punching depth. The device can quickly and uniformly punch out exhaust holes on the surface of a sand mold, and improves the hole-punching quality and efficiency. The limiting plate and the adjusting bolt can adjust the height of the hole-punching columns according to the thickness of the resin sand mold, so that a proper exhaust hole depth is obtained, and meanwhile, the hole-punching columns are prevented from being too long to punch into a mold and damage the mold. The hole-punching columns are subjected to quenching treatment, so that deformation and abrasion are not prone to occurring, and the service life is prolonged.

Description

Technical Field

[0001] This application belongs to the field of casting, and in particular relates to a device for quickly drilling vent holes in a resin sand molding line. Background Technology

[0002] In resin sand casting, venting is a crucial step. The core function of resin sand venting is to eliminate the negative impact of gases generated during the pouring process on the quality of castings (such as defects like porosity and incomplete filling), reduce sand mold damage, ensure production safety, and ultimately achieve high-quality and stable casting production.

[0003] Currently, one common venting method in resin sand casting is manual venting. This involves workers using specialized tools to manually create vent holes in the sand mold to allow gas to escape. However, this traditional method is labor-intensive. For large castings or mass production, a large number of vent holes need to be created in the sand mold, requiring workers to perform repetitive operations with the tools for extended periods. Furthermore, the depth of each hole depends entirely on the worker's experience, leading to significant variations in depth between different workers and even within the same worker at different times. If the holes are too shallow, gas cannot be effectively released, and it will accumulate in the sand mold, affecting casting quality. If the holes are too deep, the structural integrity of the sand mold may be compromised, causing molten metal to seep into the vent holes, resulting in defects such as burrs and flash, and potentially even causing partial collapse of the sand mold, rendering the casting unusable. Therefore, the existing technology needs further improvement. Utility Model Content

[0004] This invention provides a device for quickly puncturing vent holes in a resin sand molding line, which solves the problems of high labor intensity for manual vent hole puncturing, reliance on worker experience for puncturing depth, large differences in puncturing depth, insufficient gas discharge due to shallow puncturing which affects casting quality, and damage to the integrity of the sand mold structure due to excessively deep puncturing.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A rapid venting device for resin sand molding lines includes a venting column fixing plate with multiple venting columns and a limiting plate with corresponding limiting holes for the number and position of the venting columns. One end of each of the multiple venting columns is fixed to the venting column fixing plate, and the other end passes through the limiting hole. The venting column fixing plate and the limiting plate are arranged in parallel and connected by a distance adjustment mechanism. The distance adjustment mechanism can adjust the vertical distance between the venting column fixing plate and the limiting plate to adjust the venting depth.

[0006] In a preferred implementation, multiple perforated posts are arranged regularly in a matrix and fixedly mounted on the perforated post fixing plate.

[0007] In the preferred implementation, the cross-section of the perforated column gradually increases from the free end to the fixed end.

[0008] In a preferred implementation, the free end of the perforated post is hemispherical.

[0009] In a preferred embodiment, the distance adjustment mechanism includes an adjusting bolt and two nuts. The perforated column fixing plate and the limiting plate are respectively provided with a through hole and a threaded mounting hole. The screw of the adjusting bolt passes through the threaded mounting hole of the limiting plate and the through hole of the perforated column fixing plate in sequence. The two nuts are screwed onto the screw of the adjusting bolt and are located on the upper and lower sides of the perforated column fixing plate. At the same time, the two nuts are set close to the perforated column fixing plate.

[0010] In a preferred embodiment, the adjusting bolts are provided in pairs, positioned relative to each other on the pierced column fixing plate and the limiting plate.

[0011] In the preferred implementation, a handle is provided at the center of the perforated post fixing plate.

[0012] In a preferred embodiment, one end of the punched post is provided with an external thread, and one side of the punched post mounting plate is provided with a fixing hole with an internal thread. The end of the punched post with the external thread is installed in the fixing hole.

[0013] In a preferred implementation, a distance dimension mark is set along the length direction of the perforated post.

[0014] In a preferred embodiment, the perforated post is made of a high-strength, wear-resistant material.

[0015] The above structure has the following beneficial effects: The rapid venting device of this application can quickly and evenly vent holes on the upper surface of the sand mold, improving the venting quality and efficiency. The limiting plate and adjusting bolt can adjust the height of the venting column according to the thickness of the resin sand mold to obtain a suitable venting depth, while avoiding the venting column being too long and piercing the mold, thus preventing damage. The venting column is hardened, making it less prone to deformation and wear, thus extending its service life. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain this application and do not constitute an undue limitation of the present invention. In the drawings: Figure 1 A schematic three-dimensional structural diagram of one embodiment of the device for quickly piercing vent holes in the resin sand molding line of this application is shown. Figure 2 A schematic three-dimensional structural diagram illustrating one embodiment of the perforated column fixing plate and limiting plate of this application is shown. Figure 3 A schematic diagram illustrating one embodiment of the quick-release hole device for the resin sand molding line of this application is shown in use; Label Explanation: 1. Drilled post fixing plate; 10. Drilled post; 11. Through hole; 2. Limiting plate; 20. Limiting hole; 21. Threaded mounting hole; 3. Handle; 4. Distance adjustment mechanism; 40. Adjusting bolt; 41. Nut; 5. Sand mold. Detailed Implementation

[0017] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit and scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0018] In the description of this utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and 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 of this utility model. In this utility model, unless otherwise expressly specified and limited, the first feature being "upper" or "lower" than the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium.

[0019] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral unit; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. However, specifying a direct connection indicates that the two main bodies at the connection point are not connected by an intermediate structure, but are simply connected to form a whole through a connecting structure. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0020] In this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature.

[0021] The present invention will now be described with reference to the accompanying drawings.

[0022] The specific solution adopted is as follows: like Figure 1-3 As shown, this utility model provides a device for quickly punching vent holes in a resin sand molding line, including a punching post fixing plate 1 with multiple punching posts and a limiting plate 2 with limiting holes for the number and position of the punching posts 10. One end of each punching post is fixed to the punching post fixing plate, and the other end passes through the limiting hole 20. The punching post fixing plate and the limiting plate are arranged in parallel and connected by a distance adjustment mechanism. The distance adjustment mechanism can adjust the vertical distance between the punching post fixing plate and the limiting plate to adjust the punching depth.

[0023] By employing the rapid venting device for resin sand molding lines described in this application, which utilizes a design with multiple venting columns operating simultaneously (10 columns), multiple venting holes can be created in a single operation. This significantly reduces the number of operations and working time, substantially lowering the labor intensity of workers and improving work efficiency. The vertical distance between the venting column fixing plate and the limiting plate is adjusted via a distance adjustment mechanism, thereby limiting the exposed length of the venting column and controlling the venting depth. Because the adjustment is mechanical, it avoids the influence of human factors on the venting depth, ensuring consistency and accuracy of the venting depth each time, effectively solving the problem of unstable venting depth. Precisely controlled venting depth ensures smooth gas discharge, avoiding defects such as porosity and incomplete filling caused by gas accumulation, improving the density and mechanical properties of the casting, and guaranteeing the integrity and appearance quality of the casting.

[0024] See Figure 1 Multiple punching columns 10 are arranged in a regular matrix and fixedly mounted on the punching column fixing plate. Multiple punching columns work simultaneously, punching holes evenly, greatly shortening the time for punching vent holes and improving production efficiency. This is especially suitable for large castings or batch production, meeting the demands of modern casting production for high-efficiency manufacturing.

[0025] Furthermore, the cross-section of the punching post gradually increases from the free end to the fixed end. The free end of the post has a smaller cross-section, resulting in a smaller contact area with the resin sand mold during insertion, allowing it to more easily penetrate the mold surface. As the punching post penetrates deeper into the mold, the cross-section gradually increases, and the contact area with the mold also gradually increases. This allows the pressure generated during the punching process to be more evenly distributed across the surrounding sand mold, preventing mold breakage due to excessive local pressure and ensuring the stability and continuity of the punching process.

[0026] Furthermore, the free end of the punching column 10 is designed to be hemispherical. During the use, handling, and storage of the device, personnel may accidentally come into contact with the punching column. The hemispherical free end has no sharp edges, avoiding the risk of scratching or puncturing the operator's hands or other body parts, which is common with sharp ends. This greatly improves the safety of the operation. Moreover, when the hemispherical free end contacts the resin sand mold surface, it can gradually apply pressure in a gentler manner, rather than suddenly generating large pressure like a sharp end. This reduces the sudden breakage and splashing of the sand mold surface material, making the punching process smoother and more stable.

[0027] As a preferred embodiment of this application, see [link to application]. Figure 1 The distance adjustment mechanism 4 includes an adjusting bolt 40 and two nuts 41. The piercing column fixing plate and the limiting plate are respectively provided with through holes and threaded mounting holes. The bolt of the adjusting bolt passes through the threaded mounting hole 21 of the limiting plate and the through hole 11 of the piercing column fixing plate. The two nuts are screwed onto the bolt of the adjusting bolt and are located on the upper and lower sides of the piercing column fixing plate, respectively, and are positioned close to the piercing column fixing plate. Specifically, based on the type of sand mold 5, the specifications of the casting, and the requirements of the casting process, the required piercing depth is determined. Using tools such as a wrench, the two nuts located on the upper and lower sides of the piercing column fixing plate are simultaneously rotated, moving the piercing column fixing plate upwards or downwards according to the target piercing depth. To increase the drilling depth, reduce the vertical distance between the drilling post fixing plate and the limiting plate; conversely, to decrease the drilling depth, increase the vertical distance between the drilling post fixing plate and the limiting plate. Use a measuring tool to measure the length of the drilling post protruding from the limiting plate to ensure that it reaches the target drilling depth. Once the distance is accurate, use a wrench to tighten both nuts simultaneously toward the drilling post fixing plate to firmly clamp the drilling post and complete the adjustment.

[0028] Furthermore, distance dimension marks are set along the length of the punched post. Any operator can directly check the dimension marks to determine whether the adjustment is in place without using additional measuring tools.

[0029] Preferably, a pair of adjusting bolts are provided, positioned relative to the hole-punching post fixing plate and the limiting plate. The two adjusting bolts, together with the hole-punching post fixing plate and the limiting plate, form a stable constraint, ensuring the stability and accuracy of the hole-punching process.

[0030] In a preferred embodiment of this application, a handle is provided at the center of the punching post fixing plate. This allows the operator to easily grip the quick punching device and also facilitates the movement and positioning of the entire device.

[0031] As a preferred embodiment of this application, one end of the punching post is provided with an external thread, and the side of the punching post fixing plate facing the limiting plate is provided with a fixing hole with an internal thread (not shown in the figure). The end of the punching post with the external thread is installed in the fixing hole.

[0032] If a punch pin is found to be worn or damaged, affecting the punching quality, simply use a suitable wrench or manually rotate the punch pin. By utilizing the mating relationship between the external and internal threads, the old punch pin can be easily unscrewed from the fixed hole, reducing replacement costs. This cost advantage is even more pronounced when punch pins need to be replaced frequently to adapt to different production needs.

[0033] Furthermore, the perforated posts are made of high-strength, wear-resistant materials, such as wear-resistant manganese steel, allowing for long-term use.

[0034] Where not described in this utility model, existing technologies can be used or referenced. The above are merely specific embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the scope of protection of this utility model. Therefore, the scope of protection of this utility model should be determined by the scope of the claims.

Claims

1. A device for quickly punching vent holes in a resin sand molding line, characterized in that, It includes a punching post fixing plate with multiple punching posts and a limiting plate with corresponding limiting holes for the number and position of punching posts. One end of each punching post is fixed to the punching post fixing plate, and the other end passes through the limiting hole. The punching post fixing plate and the limiting plate are arranged in parallel and connected by a distance adjustment mechanism. The distance adjustment mechanism can adjust the vertical distance between the punching post fixing plate and the limiting plate to adjust the punching depth.

2. The rapid venting device for resin sand molding lines according to claim 1, characterized in that, Multiple perforated posts are arranged regularly in a matrix and fixedly mounted on the perforated post fixing plate.

3. The rapid venting device for resin sand molding lines according to claim 1, characterized in that, The cross-section of the drilled column gradually increases from the free end to the fixed end.

4. The rapid venting device for resin sand molding lines according to claim 3, characterized in that, The free end of the drilled column is hemispherical.

5. The rapid venting device for resin sand molding lines according to claim 1, characterized in that, The distance adjustment mechanism includes an adjusting bolt and two nuts. The perforated column fixing plate and the limiting plate are respectively provided with a through hole and a threaded mounting hole. The screw of the adjusting bolt passes through the threaded mounting hole of the limiting plate and the through hole of the perforated column fixing plate in sequence. The two nuts are screwed onto the screw of the adjusting bolt and are located on the upper and lower sides of the perforated column fixing plate. At the same time, the two nuts are set close to the perforated column fixing plate.

6. The rapid venting device for resin sand molding lines according to claim 5, characterized in that, The adjusting bolts are provided in pairs and are located at relative positions on the pierced column fixing plate and the limiting plate.

7. The rapid venting device for resin sand molding lines according to claim 1, characterized in that, A handle is located in the center of the hole-punch column fixing plate.

8. The rapid venting device for resin sand molding lines according to claim 1, characterized in that, One end of the punching post is provided with an external thread, and one side of the punching post mounting plate is provided with a fixing hole with an internal thread. The end of the punching post with the external thread is installed in the fixing hole.

9. The rapid venting device for resin sand molding lines according to claim 1, characterized in that, Distance markings are set along the length of the drilled post.

10. The rapid venting device for resin sand molding lines according to claim 1, characterized in that, The perforated column is made of high-strength, wear-resistant material.

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