Blowing mechanism of slurry dipping machine

Abstract

The utility model discloses an air blowing mechanism of a slurry dipping machine. The air blowing mechanism comprises a bottom frame, a slurry dipping barrel is arranged on the bottom frame, a hanging bracket is arranged on one side of the slurry dipping barrel, the hanging bracket is connected with a fixing frame, the fixing frame is provided with a plurality of air blowing modules, and the air blowing modules are arranged above the slurry dipping barrel. According to the utility model, through the arrangement of the blowing module, the blowing module blows air towards the surface of the workpiece after the workpiece is dipped with slurry, and air flow can blow bubbles on the surface of the workpiece to be broken. Meanwhile, the airflow can drive the slurry on the surface of the workpiece to flow, so that the slurry on the surface of the workpiece is more uniformly distributed, and the product production quality is improved.

Description

Technical Field

[0001] This utility model relates to the field of paste-dipping machines, and in particular to an air-blowing mechanism for paste-dipping machines. Background Technology

[0002] Existing technology, such as Chinese utility model patent document, publication number CN221734764U, discloses an energy-saving dipping bucket, including an outer dipping bucket and an inner dipping bucket rotatably disposed inside the outer dipping bucket. A driving device is installed on one side of the outer dipping bucket, and a transmission gear mechanism is connected between the driving device and the inner dipping bucket. The driving device drives the inner dipping bucket to rotate through the transmission gear mechanism.

[0003] Based on the above, a slurry dipping tank is required for the slurry dipping process in investment casting shell making. However, existing slurry dipping tanks lack air blowing capabilities, leading to air bubbles easily forming between the slurry and the wax pattern after dipping. If these air bubbles remain in the shell, they will cause unevenness on the shell surface, a loose internal structure, reduced strength and density, and consequently affect the quality of the casting, resulting in defects such as porosity and sand holes on the casting surface.

[0004] Meanwhile, during the slurry application process, the complex shape of the wax model and the slurry application operation may result in uneven coverage of the slurry on the wax model surface, with some areas having too thick a slurry and others having too thin a slurry. Further improvements are needed. Utility Model Content

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes an air blowing mechanism for a paste-coating machine.

[0006] An air blowing mechanism for a paste-dipping machine designed for this purpose includes a base frame, on which a paste-dipping tank is mounted. A hanger is mounted on one side of the paste-dipping tank, and a fixed frame is connected to the hanger. Several air blowing modules are mounted on the fixed frame, and the air blowing modules are positioned above the paste-dipping tank.

[0007] Preferably, the air blowing module includes an air collecting pipe, and multiple air nozzles are arranged in the air collecting pipe. The air nozzles are interconnected with the air collecting pipe, and the air collecting pipe is connected to an air supply pipe.

[0008] Preferably, the gas collecting pipe is provided with a connecting lug, which is detachably connected to the fixing frame.

[0009] Preferably, several air-blowing modules are arranged in a ring.

[0010] Preferably, the nozzle is a flat-nozzle air nozzle.

[0011] Preferably, the lower end of the hanger is fixedly connected to the base frame.

[0012] Compared with the prior art, the advantages of this utility model are:

[0013] Improving shell quality: By blowing air, these air bubbles can be broken or expelled, allowing the slurry to better fill the surface of the wax mold, forming a uniform and dense shell, thus improving the quality and performance of the shell.

[0014] Enhanced bonding between the mold shell and the casting: After blowing out air bubbles, the slurry can more fully contact and adhere to the wax model. In the subsequent shell-making process, after drying and hardening, the bonding between the mold shell and the wax model is stronger, thus ensuring the integrity of the mold shell during dewaxing and pouring, reducing problems such as mold shell falling off and cracking, and improving the forming accuracy of the casting.

[0015] To ensure uniform coverage of the slurry: blowing air can drive the slurry to flow and fill in areas where the slurry is thin, so that a slurry layer of relatively uniform thickness can be formed on the entire surface of the wax model, ensuring the uniformity of performance of various parts of the shell, which is beneficial to improving the dimensional accuracy and surface quality of the casting.

[0016] Controlling slurry thickness: By blowing off excess slurry or redistributing it on the wax pattern surface, the thickness of the mold shell can be controlled more precisely to meet the process requirements of different castings and reduce the scrap rate of castings caused by uneven or non-compliant mold shell thickness.

[0017] Accelerating Moisture Evaporation: During shell-making, the slurry typically contains a certain amount of moisture. Air blowing accelerates airflow, allowing the moisture on the slurry surface to evaporate into the air more quickly, thus shortening the shell drying time and improving production efficiency. This effect is particularly pronounced in high-humidity environments, helping to maintain stable production progress and reduce production costs.

[0018] Creating a stable drying environment: The airflow generated by blowing creates a relatively stable airflow environment around the wax mold after it has been coated with slurry. This helps to remove moisture and heat, making the drying process more uniform and stable. This helps to avoid problems such as cracking and deformation of the mold shell caused by localized drying that is too fast or too slow, further improving the quality and yield of the mold shell.

[0019] Removing impurity particles: In the shell-making workshop environment, there may be some dust, sand, and other impurity particles suspended in the air. When the wax model is dipped in the slurry, these impurity particles easily adhere to the surface of the slurry. Blowing air can blow these impurity particles away from the surface of the wax model, preventing them from mixing into the shell and avoiding the presence of impurity particles affecting the purity of the shell and the surface quality of the casting, thus ensuring the smoothness and precision of the casting.

[0020] Preventing slurry contamination: Air blowing also prevents contaminants in the surrounding environment from re-contaminating the slurry surface while waiting for sanding or other subsequent processes after slurry application. Keeping the slurry surface clean facilitates the smooth progress of subsequent sanding and other processes, ensuring that the quality and performance of the mold shell are not affected by external factors. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the planar structure of the present invention;

[0022] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0023] Figure 3 This is one of the three-dimensional structural schematic diagrams of this utility model;

[0024] Figure 4 This is the second three-dimensional structural schematic diagram of the present invention. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] See Figures 1-4 An air-blowing mechanism for a slurry dipping machine includes a base frame 10, on which a slurry dipping tank 20 is mounted. A hanger 30 is mounted on one side of the slurry dipping tank 20, and a fixing frame 40 is connected to the hanger 30. The fixing frame 40 is equipped with a plurality of air-blowing modules 50, which are positioned above the slurry dipping tank 20. This invention, by setting up air-blowing modules, allows air to be blown onto the surface of the workpiece after slurry dipping. The airflow breaks any air bubbles on the workpiece surface. Simultaneously, the airflow promotes the flow of slurry on the workpiece surface, resulting in a more uniform slurry distribution and thus improving product quality.

[0027] See Figure 3 and Figure 4 The air blowing module 50 includes an air collecting pipe 510, and a plurality of air nozzles 520 are arranged in the air collecting pipe 510. The air nozzles 520 are interconnected with the air collecting pipe 510, and the air collecting pipe 510 is connected to an air supply pipe 60.

[0028] The air supply pipe 60 is connected to an external air supply device. The airflow from the external air supply device is input through the air supply pipe 60, and then ejected from the air supply pipe 60 through the air collection pipe 510. Finally, the airflow acts on the surface of the workpiece.

[0029] See Figure 3 and Figure 4 The gas collecting pipe 510 is provided with a connecting ear 500, which is detachably connected to the fixing frame 40.

[0030] Furthermore, the connecting ear seat 500 is fixed to the fixing frame 40 with bolts.

[0031] In this invention, several air-blowing modules 50 are arranged in a ring. The ring arrangement enables omnidirectional air blowing, ensuring that the blown airflow can contact the workpiece surface.

[0032] In this invention, the air nozzle 520 is a flat-headed air nozzle.

[0033] In this utility model, the lower end of the hanger 30 is fixedly connected to the base frame 10.

[0034] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., 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, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An air blowing mechanism for a paste-coating machine, comprising a base frame (10), wherein a paste-coating tank (20) is disposed on the base frame (10), characterized in that: A hanger (30) is provided on one side of the dip slurry tank (20), and a fixing frame (40) is connected to the hanger (30). The fixing frame (40) is provided with a plurality of air blowing modules (50), and the air blowing modules (50) are located above the dip slurry tank (20).

2. The air blowing mechanism of a paste-coating machine according to claim 1, characterized in that: The air blowing module (50) includes an air collecting pipe (510), and a plurality of air nozzles (520) are arranged in the air collecting pipe (510). The air nozzles (520) are connected to the air collecting pipe (510), and the air collecting pipe (510) is connected to an air supply pipe (60).

3. The air blowing mechanism of a paste-coating machine according to claim 2, characterized in that: The gas collecting pipe (510) is provided with a connecting ear (500), which is detachably connected to the fixing frame (40).

4. The air blowing mechanism of a paste-coating machine according to any one of claims 1 to 3, characterized in that: Several air blowing modules (50) are arranged in a ring.

5. The air blowing mechanism of a paste-coating machine according to claim 2 or 3, characterized in that: The nozzle (520) is a flat-headed nozzle.

6. The air blowing mechanism of a paste-coating machine according to any one of claims 1 to 3, characterized in that: The lower end of the hanger (30) is fixedly connected to the base frame (10).

Images